diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml deleted file mode 100644 index e92179b..0000000 --- a/.github/workflows/docker.yml +++ /dev/null @@ -1,49 +0,0 @@ -name: Publish Docker Image - -on: - push: - branches: - - master - paths-ignore: - - '.github/**' - - '.gitignore' - - 'README.md' - -jobs: - - build: - name: Build - runs-on: ubuntu-latest - steps: - - - name: Check out code into the Go module directory - uses: actions/checkout@v2 - with: - fetch-depth: 0 - - - name: Set up QEMU - uses: docker/setup-qemu-action@v1 - - - name: Set up Docker Buildx - uses: docker/setup-buildx-action@v1 - - - name: Login to DockerHub - uses: docker/login-action@v1 - with: - username: ${{ secrets.DOCKER_USERNAME }} - password: ${{ secrets.DOCKER_PASSWORD }} - - - name: Get Version - id: shell - run: | - echo ::set-output name=version::$(git describe --tags --long | cut -c 2-) - - - name: Build and Push - if: github.ref == 'refs/heads/master' - uses: docker/build-push-action@v2 - with: - push: true - platforms: linux/amd64,linux/arm/v6,linux/arm/v7,linux/arm64 - tags: | - xjasonlyu/tun2socks:latest - xjasonlyu/tun2socks:${{ steps.shell.outputs.version }} diff --git a/.gitignore b/.gitignore deleted file mode 100644 index 8bdad86..0000000 --- a/.gitignore +++ /dev/null @@ -1,5 +0,0 @@ - -.idea/ -.DS_Store - -bin/ diff --git a/Dockerfile b/Dockerfile deleted file mode 100644 index 90f71ba..0000000 --- a/Dockerfile +++ /dev/null @@ -1,36 +0,0 @@ -FROM golang:alpine as builder - -WORKDIR /tun2socks-src -COPY . /tun2socks-src - -RUN apk add --update --no-cache \ - gcc git make musl-dev \ - && go get -u -d ./... \ - && go get -u github.com/gobuffalo/packr/v2/packr2 \ - && make \ - && /tun2socks-src/bin/tun2socks -version - -FROM alpine:latest - -COPY ./entrypoint.sh / -COPY --from=builder /tun2socks-src/bin/tun2socks /tun2socks - -RUN apk add --update --no-cache iptables iproute2 \ - && chmod +x /entrypoint.sh - -ENV TUN tun0 -ENV ETH eth0 -ENV ETH_ADDR= -ENV TUN_ADDR= -ENV TUN_MASK= -ENV PROXY= -ENV LOGLEVEL= -ENV EXCLUDED= -ENV EXTRACMD= -ENV MONITOR= -ENV MONITOR_ADDR= -ENV FAKEDNS= -ENV BACKEND_DNS= -ENV HOSTS= - -ENTRYPOINT ["/entrypoint.sh"] diff --git a/LICENSE b/LICENSE deleted file mode 100644 index 5b8eed3..0000000 --- a/LICENSE +++ /dev/null @@ -1,21 +0,0 @@ -MIT License - -Copyright (c) 2019 X. Jason Lyu - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. diff --git a/Makefile b/Makefile deleted file mode 100644 index 7a65330..0000000 --- a/Makefile +++ /dev/null @@ -1,15 +0,0 @@ -NAME=tun2socks -BINDIR=$(shell pwd)/bin -VERSION=$(shell git describe --tags --long || echo "unknown version") -BUILDTAGS='fakedns session' -GOBUILD=go build -trimpath -ldflags '-s -w -extldflags "-static" -X "github.com/xjasonlyu/tun2socks/constant.Version=$(VERSION)"' - -all: build - -build: - cd component/session && packr2 - cd cmd && $(GOBUILD) -v -tags $(BUILDTAGS) -o $(BINDIR)/$(NAME) - cd component/session && packr2 clean - -clean: - rm -rf $(BINDIR) diff --git a/README.md b/README.md deleted file mode 100644 index d327609..0000000 --- a/README.md +++ /dev/null @@ -1,390 +0,0 @@ -# tun2socks - -A tun2socks implementation written in Go. - -forked & modified from [eycorsican/go-tun2socks](https://github.com/eycorsican/go-tun2socks) - -## Preview - -Tun2socks status web view (`-monitor` option is required) -![status](./screenshot.png) - -## What's the difference with the original project - -- Add new features (listed below) -- Optimize handlers (e.g. new TCP/UDP proxy handler) -- Rewrite and remove some implementations - -## Main Features - -Previous Features - -- TCP and UDP support -- IPv4 gateway support -- Support proxy handler: `SOCKS5` -- ICMP echoing - -New Features - -- Fake DNS (Fake IP range: `198.18.0.0/15`) -- Backend DNS (resolve non-TypeA query) -- Hijack DNS (force the specific DNS to get a fake address) -- Hosts mapping (e.g. `localhost`->`127.0.0.1`) -- Web statistics monitor - -## How to Build - -`go-tun2socks` is using `cgo` and `go modules`, thus a C compiler and GO version >= 1.13 are required. - -```sh -git clone https://github.com/xjasonlyu/tun2socks.git -cd tun2socks && go mod download -make clean && make build -./bin/tun2socks -h -``` - -Or build via Docker - -```sh -docker build -t tun2socks . -``` - -## Running in Docker (My Daily Workaround) - -Create a `macvlan` network called `switch` - -```sh -docker network create -d macvlan \ - --subnet=10.0.0.0/24 \ - --gateway=10.0.0.1 \ - -o parent=eth0 \ - switch -``` - -Pull `tun2socks` docker image - -```sh -docker pull xjasonlyu/tun2socks -``` - -Run `tun2socks` as a gateway (e.g. 10.0.0.2) - -```sh -docker run -d \ - --network switch \ - --name tun2socks \ - --ip 10.0.0.2 \ - --privileged \ - --restart always \ - --sysctl net.ipv4.ip_forward=1 \ - xjasonlyu/tun2socks -``` - -PS: - -- Works on Synology NAS -- Add custom environment variables if needed - -## Alpine VM Demo - -This project is running on my server as a second gateway, so my Apple TV and other devices could access the full internet and AD block function without complex configuration. - -Here is my Running Environment - -- Linux alpine 4.19.79-0-virt (VM) -- Proxy Server: 10.0.0.3 -- Alpine Address: 10.0.0.2 -- Router Gateway: 10.0.0.1 -- Apple TV Address: 10.0.0.120 - -
- This is my alpine tun2socks service file - -```sh -#!/sbin/openrc-run - -### tun2socks options -TUN="utun0" -ETH="eth0" -ETHGW="10.0.0.1" -TUNGW="240.0.0.1" -SOCKS="10.0.0.3:1080" -MONITOR="0.0.0.0:80" -HIJACKDNS="" -BACKENDDNS="1.2.4.8:53,1.1.1.1:53" -HOSTS="localhost=127.0.0.1" -OPTIONS="-loglevel warning -tunName $TUN -proxyServer $SOCKS -monitor -monitorAddr $MONITOR -fakeDNS -hosts $HOSTS -backendDNS $BACKENDDNS" - -### openrc options -description="the tun2socks route process" -name=$RC_SVCNAME -pidfile="/var/run/$RC_SVCNAME.pid" -logfile="/var/log/$RC_SVCNAME.log" -command="/usr/local/bin/tun2socks" -command_args=$OPTIONS -command_user="root" -command_background="yes" - -depend() { - #after * - before chronyd - after firewall - use dns -} - -_set_dns() { - option=$1 - case $option in - 0) - einfo "DNS settings updated" - [ -f /etc/resolv.conf.copy ] || mv /etc/resolv.conf /etc/resolv.conf.copy - cat > /etc/resolv.conf << EOF -nameserver $TUNGW -EOF - ;; - 1) - einfo "DNS settings restored" - cp -f /etc/resolv.conf.copy /etc/resolv.conf - ;; - *) - return 0 - ;; - esac - eend $? -} - -start_pre() { - if [ "${RC_CMD}" = "restart" ]; then - ip link delete $TUN 2> /dev/null - fi - - # enable ip_forward - einfo $(sysctl -w net.ipv4.ip_forward=1) && eend $? - - # create tun device - ip tuntap add mode tun dev $TUN - ip addr add $TUNGW/24 dev $TUN - ip link set dev $TUN up - einfo "tun device created: $TUN" && eend $? - - # change default gateway - ip route del default 2> /dev/null - ip route add default via $TUNGW dev $TUN - - # add to ip route - #ip route add 1.1.1.1/32 via $ETHGW - - # DNS settings - _set_dns 0 -} - -stop_post() { - # disable ip_forward - einfo $(sysctl -w net.ipv4.ip_forward=0) && eend $? - - # delete from ip route - #ip route del 1.1.1.1/32 via $ETHGW - - # change default gateway - # ip route del default - ip route add default via $ETHGW dev $ETH 2> /dev/null - - # delete tun device - #ip link set dev $TUN down - #ip addr del $TUNGW/24 dev $TUN - #ip tuntap del mode tun dev $TUN - ip link delete $TUN 2> /dev/null - einfo "tun device deleted: $TUN" && eend $? - - # DNS settings - _set_dns 1 -} - -start() { - ebegin "Starting $RC_SVCNAME" - start-stop-daemon --start --quiet \ - --background --exec $command \ - --user $command_user \ - --make-pidfile --pidfile $pidfile \ - --stdout $logfile --stderr $logfile \ - -- $command_args - eend $? -} - -stop() { - if [ "${RC_CMD}" = "restart" ]; then - _pid=$(pgrep $RC_SVCNAME) - if [ "$_pid" != "$(cat $pidfile)" ]; then - echo $_pid > $pidfile - fi - fi - - ebegin "Stopping $RC_SVCNAME" - start-stop-daemon --stop --quiet --exec "$command" \ - --pidfile "$pidfile" - eend $? - - if [ "$RC_RUNLEVEL" = "shutdown" ]; then - _pid=$(pgrep $RC_SVCNAME) - if [ -n $_pid ]; then - kill -9 $_pid > /dev/null 2>&1 - fi - rm -rf $pidfile - fi -} -``` - -
- -Follow 3 Steps - -- Simply put this config in `/etc/init.d/` -- Give it executable permission `chmod +x tun2socks` -- Launch the service `rc-service tun2socks start` - -Finally, all you need to do is modify your internet settings. - -In this case, I just need configure my Apple TV internet settings from DHCP to Static, and change my gateway and DNS to `10.0.0.2`. - -Done! - -## Tun2socks Usage - -```text -Usage of tun2socks: - -backendDNS string - Backend DNS to resolve non-TypeA or non-ClassINET query (must support tcp) (default "8.8.8.8:53,8.8.4.4:53") - -fakeDNS - Enable fake DNS - -fakeDNSAddr string - Listen address of fake DNS (default ":53") - -hijackDNS string - Hijack the specific DNS query to get a fake ip, e.g. '*:53', '8.8.8.8:53,8.8.4.4:53' - -hosts string - DNS hosts mapping, e.g. 'example.com=1.1.1.1,example.net=2.2.2.2' - -loglevel string - Logging level [info, warning, error, debug, silent] (default "info") - -monitor - Enable session statistics monitor - -monitorAddr string - Listen address of session monitor, open in your browser to view statistics (default "localhost:6001") - -proxyServer string - Proxy server address - -tunAddr string - TUN interface address (default "240.0.0.2") - -tunDNS string - DNS resolvers for TUN interface (Windows Only) (default "8.8.8.8,8.8.4.4") - -tunGw string - TUN interface gateway (default "240.0.0.1") - -tunMask string - TUN interface netmask (default "255.255.255.0") - -tunName string - TUN interface name (default "utun0") - -tunPersist - Persist TUN interface after the program exits or the last open file descriptor is closed (Linux only) - -udpTimeout duration - UDP session timeout (default 30s) - -version - Show current version of tun2socks -``` - -## Run - -```sh -tun2socks -loglevel warning -tunName utun0 -proxyServer 1.2.3.4:1080 -monitor -monitorAddr 0.0.0.0:80 -fakeDNS -hosts localhost=127.0.0.1 -backendDNS 1.1.1.1:53,8.8.8.8:53 -``` - -Note that the TUN device may have a different name, and it should be a different name on Windows unless you have renamed it, so make sure use `ifconfig`, `ipconfig` or `ip addr` to check it out. - -## Create TUN device and Configure Routing Table - -Suppose your original gateway is 192.168.0.1. The proxy server address is 1.2.3.4. - -The following commands will need root permissions. - -### macOS - -The program will automatically create a TUN device for you on macOS. To show the created TUN device, use `ifconfig`. - -Delete original gateway: - -```sh -route delete default -``` - -Add our TUN interface as the default gateway: - -```sh -route add default 240.0.0.1 -``` - -Add a route for your proxy server to bypass the TUN interface: - -```sh -route add 1.2.3.4/32 192.168.0.1 -``` - -### Linux - -The program will not create the TUN device for you on Linux. You need to create the TUN device by yourself: - -```sh -ip tuntap add mode tun dev tun1 -ip addr add 240.0.0.1 dev tun1 -ip link set dev tun1 up -``` - -Delete original gateway: - -```sh -ip route del default -``` - -Add our TUN interface as the default gateway: - -```sh -ip route add default via 240.0.0.1 -``` - -Add a route for your proxy server to bypass the TUN interface: - -```sh -ip route add 1.2.3.4/32 via 192.168.0.1 -``` - -### Windows - -[使用教程](https://medium.com/@TachyonDevel/%E6%95%99%E7%A8%8B-%E5%9C%A8-windows-%E4%B8%8A%E4%BD%BF%E7%94%A8-tun2socks-%E8%BF%9B%E8%A1%8C%E5%85%A8%E5%B1%80%E4%BB%A3%E7%90%86-aa51869dd0d) - Tutorial in Chinese - -To create a TUN device on Windows, you need [Tap-windows](http://build.openvpn.net/downloads/releases/), refer [here](https://code.google.com/archive/p/badvpn/wikis/tun2socks.wiki) for more information. - -Add our TUN interface as the default gateway: - -```sh -# Using 240.0.0.1 is not allowed on Windows, we use 10.0.0.1 instead -route add 0.0.0.0 mask 0.0.0.0 10.0.0.1 metric 6 -``` - -Add a route for your proxy server to bypass the TUN interface: - -```sh -route add 1.2.3.4 192.168.0.1 metric 5 -``` - -## This project is using lwIP - -This project is using a modified version of lwIP, you can checkout this repo to find out what are the changes: https://github.com/eycorsican/lwip (original author) - -## Many thanks to the following projects - -- https://savannah.nongnu.org/projects/lwip -- https://github.com/ambrop72/badvpn -- https://github.com/zhuhaow/tun2socks -- https://github.com/yinghuocho/gotun2socks -- https://github.com/v2ray/v2ray-core -- https://github.com/shadowsocks/go-shadowsocks2 -- https://github.com/Dreamacro/clash -- https://github.com/songgao/water -- https://github.com/nadoo/glider -- https://github.com/miekg/dns -- https://github.com/sirupsen/logrus diff --git a/cmd/main.go b/cmd/main.go deleted file mode 100644 index 03d57ae..0000000 --- a/cmd/main.go +++ /dev/null @@ -1,178 +0,0 @@ -package main - -import ( - "flag" - "fmt" - "io" - "net" - "os" - "os/signal" - "runtime" - "strings" - "syscall" - "time" - - C "github.com/xjasonlyu/tun2socks/constant" - "github.com/xjasonlyu/tun2socks/core" - "github.com/xjasonlyu/tun2socks/filter" - "github.com/xjasonlyu/tun2socks/log" - "github.com/xjasonlyu/tun2socks/proxy" - "github.com/xjasonlyu/tun2socks/tun" - - D "github.com/xjasonlyu/tun2socks/component/fakedns" - S "github.com/xjasonlyu/tun2socks/component/session" -) - -const MTU = 1500 - -var ( - args = new(CmdArgs) - - // Modules init func - registeredInitFn []func() - - fakeDNS D.FakeDNS - monitor S.Monitor -) - -type CmdArgs struct { - // Main - Version *bool - TunName *string - TunAddr *string - TunGw *string - TunMask *string - TunDNS *string - TunPersist *bool - LogLevel *string - - // Proxy - ProxyServer *string - UdpTimeout *time.Duration - - // FakeDNS - EnableFakeDNS *bool - FakeDNSAddr *string - Hosts *string - HijackDNS *string - BackendDNS *string - - // Session Monitor - EnableMonitor *bool - MonitorAddr *string -} - -func registerInitFn(fn func()) { - registeredInitFn = append(registeredInitFn, fn) -} - -func init() { - // Main - args.Version = flag.Bool("version", false, "Show current version of tun2socks") - args.LogLevel = flag.String("loglevel", "info", "Logging level [info, warning, error, debug, silent]") - args.TunName = flag.String("tunName", "utun0", "TUN interface name") - args.TunAddr = flag.String("tunAddr", "240.0.0.2", "TUN interface address") - args.TunGw = flag.String("tunGw", "240.0.0.1", "TUN interface gateway") - args.TunMask = flag.String("tunMask", "255.255.255.0", "TUN interface netmask") - args.TunDNS = flag.String("tunDNS", "8.8.8.8,8.8.4.4", "DNS resolvers for TUN interface (Windows Only)") - args.TunPersist = flag.Bool("tunPersist", false, "Persist TUN interface after the program exits or the last open file descriptor is closed (Linux only)") - - // Proxy - args.ProxyServer = flag.String("proxyServer", "", "Proxy server address") - args.UdpTimeout = flag.Duration("udpTimeout", 30*time.Second, "UDP session timeout") -} - -func showVersion() { - version := strings.Split(C.Version[1:], "-") - fmt.Printf("Go-tun2socks %s (%s)\n", version[0], version[1]) - fmt.Printf("%s/%s, %s, %s\n", runtime.GOOS, runtime.GOARCH, runtime.Version(), version[2]) -} - -func main() { - // Parse arguments - flag.Parse() - - if *args.Version { - showVersion() - os.Exit(0) - } - - // Set log level - switch strings.ToLower(*args.LogLevel) { - case "debug": - log.SetLevel(log.DEBUG) - case "info": - log.SetLevel(log.INFO) - case "warning": - log.SetLevel(log.WARNING) - case "error": - log.SetLevel(log.ERROR) - case "silent": - log.SetLevel(log.SILENT) - default: - panic("unsupported logging level") - } - - // Initialization modules - for _, fn := range registeredInitFn { - if fn != nil { - fn() - } - } - - // Resolve proxy address - proxyAddr, err := net.ResolveTCPAddr("tcp", *args.ProxyServer) - if err != nil { - log.Fatalf("invalid proxy server address: %v", err) - } - proxyHost := proxyAddr.IP.String() - proxyPort := proxyAddr.Port - - // Open the tun device - dnsServers := strings.Split(*args.TunDNS, ",") - tunDev, err := tun.OpenTunDevice(*args.TunName, *args.TunAddr, *args.TunGw, *args.TunMask, dnsServers, *args.TunPersist) - if err != nil { - log.Fatalf("failed to open tun device: %v", err) - } - - // Setup TCP/IP stack - var lwipWriter = core.NewLWIPStack().(io.Writer) - // Wrap a writer to delay ICMP packets - lwipWriter = filter.NewICMPFilter(lwipWriter).(io.Writer) - - // Register modules to proxy - proxy.RegisterMonitor(monitor) - proxy.RegisterFakeDNS(fakeDNS, *args.HijackDNS) - // Register TCP and UDP handlers to handle accepted connections. - core.RegisterTCPConnHandler(proxy.NewTCPHandler(proxyHost, proxyPort)) - core.RegisterUDPConnHandler(proxy.NewUDPHandler(proxyHost, proxyPort, *args.UdpTimeout)) - - // Register an output callback to write packets output from lwip stack to tun - // device, output function should be set before input any packets. - core.RegisterOutputFn(func(data []byte) (int, error) { - return tunDev.Write(data) - }) - - // Copy packets from tun device to lwip stack, it's the main loop. - go func() { - if _, err := io.CopyBuffer(lwipWriter, tunDev, make([]byte, MTU)); err != nil { - log.Fatalf("copying data failed: %v", err) - } - }() - - log.Infof("Running Go-tun2socks") - - osSignals := make(chan os.Signal, 1) - signal.Notify(osSignals, os.Interrupt, os.Kill, syscall.SIGTERM, syscall.SIGHUP) - <-osSignals - - // Stop fakeDNS - if fakeDNS != nil { - fakeDNS.Stop() - } - - // Stop session monitor - if monitor != nil { - monitor.Stop() - } -} diff --git a/cmd/main_fakedns.go b/cmd/main_fakedns.go deleted file mode 100644 index b0c2fb4..0000000 --- a/cmd/main_fakedns.go +++ /dev/null @@ -1,38 +0,0 @@ -// +build fakedns - -package main - -import ( - "flag" - - "github.com/xjasonlyu/tun2socks/component/fakedns" - "github.com/xjasonlyu/tun2socks/log" -) - -func init() { - args.EnableFakeDNS = flag.Bool("fakeDNS", false, "Enable fake DNS") - args.FakeDNSAddr = flag.String("fakeDNSAddr", ":53", "Listen address of fake DNS") - args.Hosts = flag.String("hosts", "", "DNS hosts mapping, e.g. 'example.com=1.1.1.1,example.net=2.2.2.2'") - args.HijackDNS = flag.String("hijackDNS", "", "Hijack the specific DNS query to get a fake ip, e.g. '*:53', '8.8.8.8:53,8.8.4.4:53'") - args.BackendDNS = flag.String("backendDNS", "8.8.8.8:53,8.8.4.4:53", "Backend DNS to resolve !TypeA or !ClassINET query (must support tcp)") - - registerInitFn(func() { - if *args.EnableFakeDNS { - var err error - fakeDNS, err = fakedns.NewResolver(*args.FakeDNSAddr, *args.Hosts) - if err != nil { - log.Fatalf("Create fake DNS server failed: %v", err) - } - - // Register backend DNS - fakedns.RegisterDNS(*args.BackendDNS) - - // Start FakeDNS - if err := fakeDNS.Start(); err != nil { - log.Fatalf("Start fake DNS failed: %v", err) - } - } else { - fakeDNS = nil - } - }) -} diff --git a/cmd/main_session.go b/cmd/main_session.go deleted file mode 100644 index b068145..0000000 --- a/cmd/main_session.go +++ /dev/null @@ -1,28 +0,0 @@ -// +build session - -package main - -import ( - "flag" - - "github.com/xjasonlyu/tun2socks/component/session" - "github.com/xjasonlyu/tun2socks/log" -) - -func init() { - args.EnableMonitor = flag.Bool("monitor", false, "Enable session statistics monitor") - args.MonitorAddr = flag.String("monitorAddr", "localhost:6001", "Listen address of session monitor, open in your browser to view statistics") - - registerInitFn(func() { - if *args.EnableMonitor { - monitor = session.New(*args.MonitorAddr) - - // Start session monitor - if err := monitor.Start(); err != nil { - log.Fatalf("Start session monitor failed: %v", err) - } - } else { - monitor = nil - } - }) -} diff --git a/common/cache/cache.go b/common/cache/cache.go deleted file mode 100755 index 6b252c2..0000000 --- a/common/cache/cache.go +++ /dev/null @@ -1,106 +0,0 @@ -package cache - -import ( - "runtime" - "sync" - "time" -) - -// Cache store element with a expired time -type Cache struct { - *cache -} - -type cache struct { - mapping sync.Map - janitor *janitor -} - -type element struct { - Expired time.Time - Payload interface{} -} - -// Put element in Cache with its ttl -func (c *cache) Put(key interface{}, payload interface{}, ttl time.Duration) { - c.mapping.Store(key, &element{ - Payload: payload, - Expired: time.Now().Add(ttl), - }) -} - -// Get element in Cache, and drop when it expired -func (c *cache) Get(key interface{}) interface{} { - item, exist := c.mapping.Load(key) - if !exist { - return nil - } - elm := item.(*element) - // expired - if time.Since(elm.Expired) > 0 { - c.mapping.Delete(key) - return nil - } - return elm.Payload -} - -// GetWithExpire element in Cache with Expire Time -func (c *cache) GetWithExpire(key interface{}) (payload interface{}, expired time.Time) { - item, exist := c.mapping.Load(key) - if !exist { - return - } - elm := item.(*element) - // expired - if time.Since(elm.Expired) > 0 { - c.mapping.Delete(key) - return - } - return elm.Payload, elm.Expired -} - -func (c *cache) cleanup() { - c.mapping.Range(func(k, v interface{}) bool { - key := k.(string) - elm := v.(*element) - if time.Since(elm.Expired) > 0 { - c.mapping.Delete(key) - } - return true - }) -} - -type janitor struct { - interval time.Duration - stop chan struct{} -} - -func (j *janitor) process(c *cache) { - ticker := time.NewTicker(j.interval) - for { - select { - case <-ticker.C: - c.cleanup() - case <-j.stop: - ticker.Stop() - return - } - } -} - -func stopJanitor(c *Cache) { - c.janitor.stop <- struct{}{} -} - -// New return *Cache -func New(interval time.Duration) *Cache { - j := &janitor{ - interval: interval, - stop: make(chan struct{}), - } - c := &cache{janitor: j} - go j.process(c) - C := &Cache{c} - runtime.SetFinalizer(C, stopJanitor) - return C -} diff --git a/common/cache/cache_test.go b/common/cache/cache_test.go deleted file mode 100755 index cf4a391..0000000 --- a/common/cache/cache_test.go +++ /dev/null @@ -1,70 +0,0 @@ -package cache - -import ( - "runtime" - "testing" - "time" - - "github.com/stretchr/testify/assert" -) - -func TestCache_Basic(t *testing.T) { - interval := 200 * time.Millisecond - ttl := 20 * time.Millisecond - c := New(interval) - c.Put("int", 1, ttl) - c.Put("string", "a", ttl) - - i := c.Get("int") - assert.Equal(t, i.(int), 1, "should recv 1") - - s := c.Get("string") - assert.Equal(t, s.(string), "a", "should recv 'a'") -} - -func TestCache_TTL(t *testing.T) { - interval := 200 * time.Millisecond - ttl := 20 * time.Millisecond - now := time.Now() - c := New(interval) - c.Put("int", 1, ttl) - c.Put("int2", 2, ttl) - - i := c.Get("int") - _, expired := c.GetWithExpire("int2") - assert.Equal(t, i.(int), 1, "should recv 1") - assert.True(t, now.Before(expired)) - - time.Sleep(ttl * 2) - i = c.Get("int") - j, _ := c.GetWithExpire("int2") - assert.Nil(t, i, "should recv nil") - assert.Nil(t, j, "should recv nil") -} - -func TestCache_AutoCleanup(t *testing.T) { - interval := 10 * time.Millisecond - ttl := 15 * time.Millisecond - c := New(interval) - c.Put("int", 1, ttl) - - time.Sleep(ttl * 2) - i := c.Get("int") - j, _ := c.GetWithExpire("int") - assert.Nil(t, i, "should recv nil") - assert.Nil(t, j, "should recv nil") -} - -func TestCache_AutoGC(t *testing.T) { - sign := make(chan struct{}) - go func() { - interval := 10 * time.Millisecond - ttl := 15 * time.Millisecond - c := New(interval) - c.Put("int", 1, ttl) - sign <- struct{}{} - }() - - <-sign - runtime.GC() -} diff --git a/common/cache/lrucache.go b/common/cache/lrucache.go deleted file mode 100755 index 5a139bf..0000000 --- a/common/cache/lrucache.go +++ /dev/null @@ -1,148 +0,0 @@ -package cache - -// Modified by https://github.com/die-net/lrucache - -import ( - "container/list" - "sync" - "time" -) - -// Option is part of Functional Options Pattern -type Option func(*LruCache) - -// WithUpdateAgeOnGet update expires when Get element -func WithUpdateAgeOnGet() Option { - return func(l *LruCache) { - l.updateAgeOnGet = true - } -} - -// WithAge defined element max age (second) -func WithAge(maxAge int64) Option { - return func(l *LruCache) { - l.maxAge = maxAge - } -} - -// WithSize defined max length of LruCache -func WithSize(maxSize int) Option { - return func(l *LruCache) { - l.maxSize = maxSize - } -} - -// LruCache is a thread-safe, in-memory lru-cache that evicts the -// least recently used entries from memory when (if set) the entries are -// older than maxAge (in seconds). Use the New constructor to create one. -type LruCache struct { - maxAge int64 - maxSize int - mu sync.Mutex - cache map[interface{}]*list.Element - lru *list.List // Front is least-recent - updateAgeOnGet bool -} - -// NewLRUCache creates an LruCache -func NewLRUCache(options ...Option) *LruCache { - lc := &LruCache{ - lru: list.New(), - cache: make(map[interface{}]*list.Element), - } - - for _, option := range options { - option(lc) - } - - return lc -} - -// Get returns the interface{} representation of a cached response and a bool -// set to true if the key was found. -func (c *LruCache) Get(key interface{}) (interface{}, bool) { - c.mu.Lock() - defer c.mu.Unlock() - - le, ok := c.cache[key] - if !ok { - return nil, false - } - - if c.maxAge > 0 && le.Value.(*entry).expires <= time.Now().Unix() { - c.deleteElement(le) - c.maybeDeleteOldest() - - return nil, false - } - - c.lru.MoveToBack(le) - entry := le.Value.(*entry) - if c.maxAge > 0 && c.updateAgeOnGet { - entry.expires = time.Now().Unix() + c.maxAge - } - value := entry.value - - return value, true -} - -// Set stores the interface{} representation of a response for a given key. -func (c *LruCache) Set(key interface{}, value interface{}) { - c.mu.Lock() - defer c.mu.Unlock() - - expires := int64(0) - if c.maxAge > 0 { - expires = time.Now().Unix() + c.maxAge - } - - if le, ok := c.cache[key]; ok { - c.lru.MoveToBack(le) - e := le.Value.(*entry) - e.value = value - e.expires = expires - } else { - e := &entry{key: key, value: value, expires: expires} - c.cache[key] = c.lru.PushBack(e) - - if c.maxSize > 0 { - if len := c.lru.Len(); len > c.maxSize { - c.deleteElement(c.lru.Front()) - } - } - } - - c.maybeDeleteOldest() -} - -// Delete removes the value associated with a key. -func (c *LruCache) Delete(key string) { - c.mu.Lock() - - if le, ok := c.cache[key]; ok { - c.deleteElement(le) - } - - c.mu.Unlock() -} - -func (c *LruCache) maybeDeleteOldest() { - if c.maxAge > 0 { - now := time.Now().Unix() - for le := c.lru.Front(); le != nil && le.Value.(*entry).expires <= now; le = c.lru.Front() { - c.deleteElement(le) - } - } -} - -func (c *LruCache) deleteElement(le *list.Element) { - c.lru.Remove(le) - e := le.Value.(*entry) - delete(c.cache, e.key) -} - -type entry struct { - key interface{} - value interface{} - expires int64 -} diff --git a/common/cache/lrucache_test.go b/common/cache/lrucache_test.go deleted file mode 100755 index 31f9a91..0000000 --- a/common/cache/lrucache_test.go +++ /dev/null @@ -1,117 +0,0 @@ -package cache - -import ( - "testing" - "time" - - "github.com/stretchr/testify/assert" -) - -var entries = []struct { - key string - value string -}{ - {"1", "one"}, - {"2", "two"}, - {"3", "three"}, - {"4", "four"}, - {"5", "five"}, -} - -func TestLRUCache(t *testing.T) { - c := NewLRUCache() - - for _, e := range entries { - c.Set(e.key, e.value) - } - - c.Delete("missing") - _, ok := c.Get("missing") - assert.False(t, ok) - - for _, e := range entries { - value, ok := c.Get(e.key) - if assert.True(t, ok) { - assert.Equal(t, e.value, value.(string)) - } - } - - for _, e := range entries { - c.Delete(e.key) - - _, ok := c.Get(e.key) - assert.False(t, ok) - } -} - -func TestLRUMaxAge(t *testing.T) { - c := NewLRUCache(WithAge(86400)) - - now := time.Now().Unix() - expected := now + 86400 - - // Add one expired entry - c.Set("foo", "bar") - c.lru.Back().Value.(*entry).expires = now - - // Reset - c.Set("foo", "bar") - e := c.lru.Back().Value.(*entry) - assert.True(t, e.expires >= now) - c.lru.Back().Value.(*entry).expires = now - - // Set a few and verify expiration times - for _, s := range entries { - c.Set(s.key, s.value) - e := c.lru.Back().Value.(*entry) - assert.True(t, e.expires >= expected && e.expires <= expected+10) - } - - // Make sure we can get them all - for _, s := range entries { - _, ok := c.Get(s.key) - assert.True(t, ok) - } - - // Expire all entries - for _, s := range entries { - le, ok := c.cache[s.key] - if assert.True(t, ok) { - le.Value.(*entry).expires = now - } - } - - // Get one expired entry, which should clear all expired entries - _, ok := c.Get("3") - assert.False(t, ok) - assert.Equal(t, c.lru.Len(), 0) -} - -func TestLRUpdateOnGet(t *testing.T) { - c := NewLRUCache(WithAge(86400), WithUpdateAgeOnGet()) - - now := time.Now().Unix() - expires := now + 86400/2 - - // Add one expired entry - c.Set("foo", "bar") - c.lru.Back().Value.(*entry).expires = expires - - _, ok := c.Get("foo") - assert.True(t, ok) - assert.True(t, c.lru.Back().Value.(*entry).expires > expires) -} - -func TestMaxSize(t *testing.T) { - c := NewLRUCache(WithSize(2)) - // Add one expired entry - c.Set("foo", "bar") - _, ok := c.Get("foo") - assert.True(t, ok) - - c.Set("bar", "foo") - c.Set("baz", "foo") - - _, ok = c.Get("foo") - assert.False(t, ok) -} diff --git a/common/domain-trie/node.go b/common/domain-trie/node.go deleted file mode 100755 index be8ba91..0000000 --- a/common/domain-trie/node.go +++ /dev/null @@ -1,26 +0,0 @@ -package trie - -// Node is the trie's node -type Node struct { - Data interface{} - children map[string]*Node -} - -func (n *Node) getChild(s string) *Node { - return n.children[s] -} - -func (n *Node) hasChild(s string) bool { - return n.getChild(s) != nil -} - -func (n *Node) addChild(s string, child *Node) { - n.children[s] = child -} - -func newNode(data interface{}) *Node { - return &Node{ - Data: data, - children: map[string]*Node{}, - } -} diff --git a/common/domain-trie/tire.go b/common/domain-trie/tire.go deleted file mode 100755 index f4e87ff..0000000 --- a/common/domain-trie/tire.go +++ /dev/null @@ -1,92 +0,0 @@ -package trie - -import ( - "errors" - "strings" -) - -const ( - wildcard = "*" - domainStep = "." -) - -var ( - // ErrInvalidDomain means insert domain is invalid - ErrInvalidDomain = errors.New("invalid domain") -) - -// Trie contains the main logic for adding and searching nodes for domain segments. -// support wildcard domain (e.g *.google.com) -type Trie struct { - root *Node -} - -func isValidDomain(domain string) bool { - return domain != "" && domain[0] != '.' && domain[len(domain)-1] != '.' -} - -// Insert adds a node to the trie. -// Support -// 1. www.example.com -// 2. *.example.com -// 3. subdomain.*.example.com -func (t *Trie) Insert(domain string, data interface{}) error { - if !isValidDomain(domain) { - return ErrInvalidDomain - } - - parts := strings.Split(domain, domainStep) - node := t.root - // reverse storage domain part to save space - for i := len(parts) - 1; i >= 0; i-- { - part := parts[i] - if !node.hasChild(part) { - node.addChild(part, newNode(nil)) - } - - node = node.getChild(part) - } - - node.Data = data - return nil -} - -// Search is the most important part of the Trie. -// Priority as: -// 1. static part -// 2. wildcard domain -func (t *Trie) Search(domain string) *Node { - if !isValidDomain(domain) { - return nil - } - parts := strings.Split(domain, domainStep) - - n := t.root - for i := len(parts) - 1; i >= 0; i-- { - part := parts[i] - - var child *Node - if !n.hasChild(part) { - if !n.hasChild(wildcard) { - return nil - } - - child = n.getChild(wildcard) - } else { - child = n.getChild(part) - } - - n = child - } - - if n.Data == nil { - return nil - } - - return n -} - -// New returns a new, empty Trie. -func New() *Trie { - return &Trie{root: newNode(nil)} -} diff --git a/common/domain-trie/trie_test.go b/common/domain-trie/trie_test.go deleted file mode 100755 index 228106c..0000000 --- a/common/domain-trie/trie_test.go +++ /dev/null @@ -1,87 +0,0 @@ -package trie - -import ( - "net" - "testing" -) - -var localIP = net.IP{127, 0, 0, 1} - -func TestTrie_Basic(t *testing.T) { - tree := New() - domains := []string{ - "example.com", - "google.com", - } - - for _, domain := range domains { - tree.Insert(domain, localIP) - } - - node := tree.Search("example.com") - if node == nil { - t.Error("should not recv nil") - } - - if !node.Data.(net.IP).Equal(localIP) { - t.Error("should equal 127.0.0.1") - } - - if tree.Insert("", localIP) == nil { - t.Error("should return error") - } -} - -func TestTrie_Wildcard(t *testing.T) { - tree := New() - domains := []string{ - "*.example.com", - "sub.*.example.com", - "*.dev", - } - - for _, domain := range domains { - tree.Insert(domain, localIP) - } - - if tree.Search("sub.example.com") == nil { - t.Error("should not recv nil") - } - - if tree.Search("sub.foo.example.com") == nil { - t.Error("should not recv nil") - } - - if tree.Search("foo.sub.example.com") != nil { - t.Error("should recv nil") - } - - if tree.Search("foo.example.dev") != nil { - t.Error("should recv nil") - } - - if tree.Search("example.com") != nil { - t.Error("should recv nil") - } -} - -func TestTrie_Boundary(t *testing.T) { - tree := New() - tree.Insert("*.dev", localIP) - - if err := tree.Insert(".", localIP); err == nil { - t.Error("should recv err") - } - - if err := tree.Insert(".com", localIP); err == nil { - t.Error("should recv err") - } - - if tree.Search("dev") != nil { - t.Error("should recv nil") - } - - if tree.Search(".dev") != nil { - t.Error("should recv nil") - } -} diff --git a/common/fakeip/pool.go b/common/fakeip/pool.go deleted file mode 100755 index 1427e80..0000000 --- a/common/fakeip/pool.go +++ /dev/null @@ -1,107 +0,0 @@ -package fakeip - -import ( - "errors" - "net" - "sync" - - "github.com/xjasonlyu/tun2socks/common/cache" -) - -// Pool is a implementation about fake ip generator without storage -type Pool struct { - max uint32 - min uint32 - gateway uint32 - offset uint32 - mux *sync.Mutex - cache *cache.LruCache -} - -// Lookup return a fake ip with host -func (p *Pool) Lookup(host string) net.IP { - p.mux.Lock() - defer p.mux.Unlock() - if ip, exist := p.cache.Get(host); exist { - return ip.(net.IP) - } - - ip := p.get(host) - p.cache.Set(host, ip) - return ip -} - -// LookBack return host with the fake ip -func (p *Pool) LookBack(ip net.IP) (string, bool) { - p.mux.Lock() - defer p.mux.Unlock() - - if ip = ip.To4(); ip == nil { - return "", false - } - - n := ipToUint(ip.To4()) - offset := n - p.min + 1 - - if host, exist := p.cache.Get(offset); exist { - return host.(string), true - } - - return "", false -} - -// Gateway return gateway ip -func (p *Pool) Gateway() net.IP { - return uintToIP(p.gateway) -} - -func (p *Pool) get(host string) net.IP { - current := p.offset - for { - p.offset = (p.offset + 1) % (p.max - p.min) - // Avoid infinite loops - if p.offset == current { - break - } - - if _, exist := p.cache.Get(p.offset); !exist { - break - } - } - ip := uintToIP(p.min + p.offset - 1) - p.cache.Set(p.offset, host) - return ip -} - -func ipToUint(ip net.IP) uint32 { - v := uint32(ip[0]) << 24 - v += uint32(ip[1]) << 16 - v += uint32(ip[2]) << 8 - v += uint32(ip[3]) - return v -} - -func uintToIP(v uint32) net.IP { - return net.IPv4(byte(v>>24), byte(v>>16), byte(v>>8), byte(v)) -} - -// New return Pool instance -func New(ipnet *net.IPNet, size int) (*Pool, error) { - min := ipToUint(ipnet.IP) + 2 - - ones, bits := ipnet.Mask.Size() - total := 1<> 4) -} - -func PeekProtocol(data []byte) string { - switch uint8(data[9]) { - case PROTOCOL_ICMP: - return "icmp" - case PROTOCOL_TCP: - return "tcp" - case PROTOCOL_UDP: - return "udp" - default: - return "unknown" - } -} - -func PeekSourceAddress(data []byte) net.IP { - return net.IP(data[12:16]) -} - -func PeekSourcePort(data []byte) uint16 { - ihl := uint8(data[0] & 0x0f) - return binary.BigEndian.Uint16(data[ihl*4 : ihl*4+2]) -} - -func PeekDestinationAddress(data []byte) net.IP { - return net.IP(data[16:20]) -} - -func PeekDestinationPort(data []byte) uint16 { - ihl := uint8(data[0] & 0x0f) - return binary.BigEndian.Uint16(data[ihl*4+2 : ihl*4+4]) -} - -func IsSYNSegment(data []byte) bool { - ihl := uint8(data[0] & 0x0f) - if uint8(data[ihl*4+13]&(1<<1)) == 0 { - return false - } else { - return true - } -} diff --git a/common/pool/pool.go b/common/pool/pool.go deleted file mode 100644 index 7c201e7..0000000 --- a/common/pool/pool.go +++ /dev/null @@ -1,14 +0,0 @@ -package pool - -import ( - "sync" -) - -const ( - // io.Copy default buffer size is 32 KiB - // define a buffer of 20 KiB to reduce the memory of each TCP relay - bufferSize = 20 * 1024 -) - -// BufPool provide buffer for relay -var BufPool = sync.Pool{New: func() interface{} { return make([]byte, bufferSize) }} diff --git a/component/fakedns/fakedns.go b/component/fakedns/fakedns.go deleted file mode 100644 index a0f484f..0000000 --- a/component/fakedns/fakedns.go +++ /dev/null @@ -1,16 +0,0 @@ -package fakedns - -import ( - "net" -) - -type FakeDNS interface { - Start() error - Stop() error - - // Resolve a fake dns response for the specify request. - Resolve([]byte) ([]byte, error) - - // IPToHost returns the corresponding domain for the given IP. - IPToHost(ip net.IP) (string, bool) -} diff --git a/component/fakedns/middleware.go b/component/fakedns/middleware.go deleted file mode 100644 index 0bd6ddd..0000000 --- a/component/fakedns/middleware.go +++ /dev/null @@ -1,130 +0,0 @@ -package fakedns - -import ( - "context" - "net" - "strings" - "time" - - D "github.com/miekg/dns" - - T "github.com/xjasonlyu/tun2socks/common/domain-trie" - F "github.com/xjasonlyu/tun2socks/common/fakeip" -) - -var backendDNS []string - -func RegisterDNS(dns string) { - backendDNS = append(backendDNS, strings.Split(dns, ",")...) -} - -func dnsExchange(r *D.Msg) (msg *D.Msg) { - defer func() { - if msg == nil { - // empty DNS response - rr := &D.A{} - rr.Hdr = D.RR_Header{Name: r.Question[0].Name, Rrtype: D.TypeA, Class: D.ClassINET, Ttl: dnsDefaultTTL} - msg = r.Copy() - msg.Answer = []D.RR{rr} - setMsgTTL(msg, dnsDefaultTTL) - } - }() - - c := new(D.Client) - c.Net = "tcp" - for _, dns := range backendDNS { - ctx, cancel := context.WithTimeout(context.Background(), time.Second) - msg, _, _ = c.ExchangeContext(ctx, r, dns) - cancel() // call cancel as soon as the operations running in this Context complete - if msg != nil { - // success, exit query - goto Out - } - } -Out: - return msg -} - -func resolve(hosts *T.Trie, pool *F.Pool, r *D.Msg) (msg *D.Msg) { - defer func() { - if msg != nil { - msg.SetReply(r) - } - }() - - if msg = hostResolve(hosts, r); msg != nil { - return msg - } - - q := r.Question[0] - if q.Qtype != D.TypeA || q.Qclass != D.ClassINET { - return dnsExchange(r) - } - - return fakeResolve(pool, r) -} - -func fakeResolve(pool *F.Pool, r *D.Msg) *D.Msg { - q := r.Question[0] - host := strings.TrimRight(q.Name, ".") - - rr := &D.A{} - rr.Hdr = D.RR_Header{Name: q.Name, Rrtype: D.TypeA, Class: D.ClassINET, Ttl: dnsFakeTTL} - ip := pool.Lookup(host) - rr.A = ip - - msg := r.Copy() - msg.Answer = []D.RR{rr} - setMsgTTL(msg, dnsFakeTTL) - return msg -} - -func hostResolve(hosts *T.Trie, r *D.Msg) *D.Msg { - if hosts == nil { - return nil - } - - q := r.Question[0] - if q.Qtype != D.TypeA && q.Qtype != D.TypeAAAA { - return nil - } - - domain := strings.TrimRight(q.Name, ".") - host := hosts.Search(domain) - if host == nil { - return nil - } - - ip := host.Data.(net.IP) - if q.Qtype == D.TypeAAAA && ip.To16() == nil { - return nil - } else if q.Qtype == D.TypeA && ip.To4() == nil { - return nil - } - - var rr D.RR - if q.Qtype == D.TypeAAAA { - record := &D.AAAA{} - record.Hdr = D.RR_Header{Name: q.Name, Rrtype: D.TypeAAAA, Class: D.ClassINET, Ttl: dnsDefaultTTL} - record.AAAA = ip - rr = record - } else { - record := &D.A{} - record.Hdr = D.RR_Header{Name: q.Name, Rrtype: D.TypeA, Class: D.ClassINET, Ttl: dnsDefaultTTL} - record.A = ip - rr = record - } - - msg := r.Copy() - msg.Answer = []D.RR{rr} - setMsgTTL(msg, dnsDefaultTTL) - return msg -} - -func newHandler(hosts *T.Trie, pool *F.Pool) handler { - return func(w D.ResponseWriter, r *D.Msg) { - msg := resolve(hosts, pool, r) - w.WriteMsg(msg) - return - } -} diff --git a/component/fakedns/resolver.go b/component/fakedns/resolver.go deleted file mode 100644 index 91861da..0000000 --- a/component/fakedns/resolver.go +++ /dev/null @@ -1,133 +0,0 @@ -package fakedns - -import ( - "errors" - "fmt" - "net" - "strings" - - D "github.com/miekg/dns" - - T "github.com/xjasonlyu/tun2socks/common/domain-trie" - F "github.com/xjasonlyu/tun2socks/common/fakeip" -) - -const ( - // TTL - dnsFakeTTL uint32 = 1 - dnsDefaultTTL uint32 = 600 - - // Resolver default value - dnsCacheSize = 1000 - dnsFakeIPRange = "198.18.0.0/15" -) - -type handler = D.HandlerFunc - -type Resolver struct { - h handler - p *F.Pool - t *T.Trie - - *D.Server - ServeAddr string -} - -func (r *Resolver) ServeDNS(w D.ResponseWriter, req *D.Msg) { - if len(req.Question) == 0 { - D.HandleFailed(w, req) - return - } - r.h(w, req) -} - -func (r *Resolver) Start() error { - _, port, err := net.SplitHostPort(r.ServeAddr) - if port == "0" || port == "" || err != nil { - return errors.New("address format error") - } - - udpAddr, err := net.ResolveUDPAddr("udp", r.ServeAddr) - if err != nil { - return err - } - - pc, err := net.ListenUDP("udp", udpAddr) - if err != nil { - return err - } - - r.Server = &D.Server{Addr: r.ServeAddr, PacketConn: pc, Handler: r.h} - go func() { - r.ActivateAndServe() - }() - - return nil -} - -func (r *Resolver) Stop() error { - return r.Shutdown() -} - -func (r *Resolver) IPToHost(ip net.IP) (string, bool) { - return r.p.LookBack(ip) -} - -func (r *Resolver) Resolve(request []byte) ([]byte, error) { - if err := D.IsMsg(request); err != nil { - return nil, err - } - - req := new(D.Msg) - if err := req.Unpack(request); err != nil { - return nil, errors.New("cannot handle dns query: failed to unpack") - } - - if len(req.Question) == 0 { - return nil, errors.New("cannot handle dns query: invalid question length") - } - - msg := resolve(r.t, r.p, req) - if msg == nil { - return nil, errors.New("cannot resolve dns query: msg is nil") - } - resp, err := msg.Pack() - if err != nil { - return nil, fmt.Errorf("failed to pack dns answer: %v", err) - } - return resp, nil -} - -func NewResolver(a, h string) (*Resolver, error) { - _, ipnet, _ := net.ParseCIDR(dnsFakeIPRange) - - pool, err := F.New(ipnet, dnsCacheSize) - if err != nil { - return nil, err - } - - tree := func(str string) *T.Trie { - tree := T.New() - s := strings.Split(str, ",") - for _, host := range s { - m := strings.Split(host, "=") - if len(m) != 2 { - continue - } - domain := strings.TrimSpace(m[0]) - target := strings.TrimSpace(m[1]) - if err := tree.Insert(domain, net.ParseIP(target)); err != nil { - panic(fmt.Sprintf("add hosts error: %v", err)) - } - } - return tree - }(h) - - handler := newHandler(tree, pool) - return &Resolver{ - h: handler, - p: pool, - t: tree, - ServeAddr: a, - }, nil -} diff --git a/component/fakedns/utils.go b/component/fakedns/utils.go deleted file mode 100644 index dfbc9aa..0000000 --- a/component/fakedns/utils.go +++ /dev/null @@ -1,19 +0,0 @@ -package fakedns - -import ( - D "github.com/miekg/dns" -) - -func setMsgTTL(msg *D.Msg, ttl uint32) { - for _, answer := range msg.Answer { - answer.Header().Ttl = ttl - } - - for _, ns := range msg.Ns { - ns.Header().Ttl = ttl - } - - for _, extra := range msg.Extra { - extra.Header().Ttl = ttl - } -} diff --git a/component/session/css/bootstrap.min.css b/component/session/css/bootstrap.min.css deleted file mode 100644 index 21d10ba..0000000 --- a/component/session/css/bootstrap.min.css +++ /dev/null @@ -1,7 +0,0 @@ -/*! - * Bootstrap v4.5.2 (https://getbootstrap.com/) - * Copyright 2011-2020 The Bootstrap Authors - * Copyright 2011-2020 Twitter, Inc. - * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE) - 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a;color:transparent;text-shadow:none;background-color:transparent;border:0}.text-decoration-none{text-decoration:none!important}.text-break{word-break:break-word!important;overflow-wrap:break-word!important}.text-reset{color:inherit!important}.visible{visibility:visible!important}.invisible{visibility:hidden!important}@media print{*,::after,::before{text-shadow:none!important;box-shadow:none!important}a:not(.btn){text-decoration:underline}abbr[title]::after{content:" (" attr(title) ")"}pre{white-space:pre-wrap!important}blockquote,pre{border:1px solid #adb5bd;page-break-inside:avoid}thead{display:table-header-group}img,tr{page-break-inside:avoid}h2,h3,p{orphans:3;widows:3}h2,h3{page-break-after:avoid}@page{size:a3}body{min-width:992px!important}.container{min-width:992px!important}.navbar{display:none}.badge{border:1px solid #000}.table{border-collapse:collapse!important}.table td,.table th{background-color:#fff!important}.table-bordered td,.table-bordered th{border:1px solid #dee2e6!important}.table-dark{color:inherit}.table-dark tbody+tbody,.table-dark td,.table-dark th,.table-dark thead th{border-color:#dee2e6}.table .thead-dark th{color:inherit;border-color:#dee2e6}} -/*# sourceMappingURL=bootstrap.min.css.map */ \ No newline at end of file diff --git a/component/session/server.go b/component/session/server.go deleted file mode 100644 index 6d4a1b5..0000000 --- a/component/session/server.go +++ /dev/null @@ -1,221 +0,0 @@ -package session - -import ( - "bufio" - "encoding/json" - "errors" - "fmt" - "io" - "net" - "net/http" - "runtime" - "sort" - "sync" - "sync/atomic" - "time" - - C "github.com/xjasonlyu/tun2socks/constant" - - "github.com/gobuffalo/packr/v2" -) - -const maxClosedSessions = 100 - -type Server struct { - sync.Mutex - *http.Server - - ServeAddr string - - trafficUp int64 - trafficDown int64 - - activeSessionMap sync.Map - closedSessionList []Session -} - -func New(addr string) *Server { - return &Server{ - ServeAddr: addr, - } -} - -func (s *Server) getSessions() (activeSessions, closedSessions []Session) { - // Slice of active sessions - s.activeSessionMap.Range(func(key, value interface{}) bool { - session := value.(*Session) - activeSessions = append(activeSessions, *session) - return true - }) - - // Slice of closed sessions - s.Lock() - defer s.Unlock() - closedSessions = append([]Session(nil), s.closedSessionList...) - return -} - -func (s *Server) serveJSON(w http.ResponseWriter, _ *http.Request) { - activeSessions, closedSessions := s.getSessions() - - // calculate traffic - trafficUp := atomic.LoadInt64(&s.trafficUp) - trafficDown := atomic.LoadInt64(&s.trafficDown) - for _, session := range activeSessions { - trafficUp += session.UploadBytes - trafficDown += session.DownloadBytes - } - - status := &Status{ - platform(), - C.Version, - cpu(), - mem(), - uptime(), - trafficUp + trafficDown, - trafficUp, - trafficDown, - runtime.NumGoroutine(), - activeSessions, - closedSessions, - } - - w.Header().Set("Content-Type", "application/json") - json.NewEncoder(w).Encode(status) -} - -func (s *Server) serveHTML(resp http.ResponseWriter, _ *http.Request) { - activeSessions, closedSessions := s.getSessions() - - tablePrint := func(w io.Writer, sessions []Session) { - // Sort by session start time. - sort.Slice(sessions, func(i, j int) bool { - return sessions[i].SessionStart.After(sessions[j].SessionStart) - }) - _, _ = fmt.Fprintf(w, "
\n") - _, _ = fmt.Fprintf(w, "\n") - - for _, session := range sessions { - _, _ = fmt.Fprintf(w, "\n", - session.Process, - session.Network, - date(session.SessionStart), - duration(session.SessionStart, session.SessionClose), - // session.DialerAddr, - session.ClientAddr, - session.TargetAddr, - byteCountSI(session.UploadBytes), - byteCountSI(session.DownloadBytes), - ) - } - _, _ = fmt.Fprintf(w, "
ProcessNetworkDateDurationClient AddrTarget AddrUploadDownload
%v%v%v%v%v%v%v%v
\n") - } - - w := bufio.NewWriter(resp) - // Html head - _, _ = fmt.Fprintf(w, ` - - - - - - Go-tun2socks - - - -
-

Go-tun2socks %s

`, C.Version) - // calculate traffic - trafficUp := atomic.LoadInt64(&s.trafficUp) - trafficDown := atomic.LoadInt64(&s.trafficDown) - for _, session := range activeSessions { - trafficUp += session.UploadBytes - trafficDown += session.DownloadBytes - } - // statistics - _, _ = fmt.Fprintf(w, `

Statistics (%d)

-
- - - - - -
Last Refresh TimePlatform VersionCPUMEMUptimeTotalUploadDownload
%v%v%v%v%v%v%v%v
-
`, - runtime.NumGoroutine(), - date(time.Now()), - platform(), - cpu(), - mem(), - uptime(), - byteCountSI(trafficUp+trafficDown), - byteCountSI(trafficUp), - byteCountSI(trafficDown), - ) - // Session table - _, _ = fmt.Fprintf(w, "

Active sessions (%d)

\n", len(activeSessions)) - tablePrint(w, activeSessions) - _, _ = fmt.Fprintf(w, "

Closed sessions (%d)

\n", len(closedSessions)) - tablePrint(w, closedSessions) - _, _ = fmt.Fprintf(w, "
\n") - _ = w.Flush() -} - -func (s *Server) Start() error { - _, port, err := net.SplitHostPort(s.ServeAddr) - if port == "0" || port == "" || err != nil { - return errors.New("address format error") - } - - tcpAddr, err := net.ResolveTCPAddr("tcp", s.ServeAddr) - if err != nil { - return err - } - - c, err := net.ListenTCP("tcp", tcpAddr) - if err != nil { - return err - } - - mux := http.NewServeMux() - mux.HandleFunc("/", s.serveHTML) - mux.HandleFunc("/json", s.serveJSON) - - box := packr.New("CSSBox", "./css") - mux.Handle("/css/", http.StripPrefix("/css/", http.FileServer(box))) - - s.Server = &http.Server{Addr: s.ServeAddr, Handler: mux} - go func() { - s.Serve(c) - }() - - return nil -} - -func (s *Server) Stop() error { - return s.Close() -} - -func (s *Server) AddSession(key interface{}, session *Session) { - if session != nil { - s.activeSessionMap.Store(key, session) - } -} - -func (s *Server) RemoveSession(key interface{}) { - if item, ok := s.activeSessionMap.Load(key); ok { - session := item.(*Session) - // delete first - s.activeSessionMap.Delete(key) - // record up & down traffic - atomic.AddInt64(&s.trafficUp, atomic.LoadInt64(&session.UploadBytes)) - atomic.AddInt64(&s.trafficDown, atomic.LoadInt64(&session.DownloadBytes)) - // move to closed sessions - s.Lock() - s.closedSessionList = append(s.closedSessionList, *session) - if len(s.closedSessionList) > maxClosedSessions { - s.closedSessionList = s.closedSessionList[1:] - } - s.Unlock() - } -} diff --git a/component/session/session.go b/component/session/session.go deleted file mode 100644 index 8ce0aef..0000000 --- a/component/session/session.go +++ /dev/null @@ -1,103 +0,0 @@ -package session - -import ( - "net" - "sync" - "sync/atomic" - "time" -) - -type Monitor interface { - Start() error - Stop() error - - // METHODS - AddSession(key interface{}, session *Session) - RemoveSession(key interface{}) -} - -type Status struct { - Platform string `json:"platform"` - Version string `json:"version"` - CPU string `json:"cpu"` - MEM string `json:"mem"` - Uptime string `json:"uptime"` - Total int64 `json:"total"` - Upload int64 `json:"upload"` - Download int64 `json:"download"` - Goroutines int `json:"goroutines"` - ActiveSessions []Session `json:"activeSessions"` - ClosedSessions []Session `json:"closedSessions"` -} - -type Session struct { - Process string `json:"process"` - Network string `json:"network"` - DialerAddr string `json:"dialerAddr"` - ClientAddr string `json:"clientAddr"` - TargetAddr string `json:"targetAddr"` - UploadBytes int64 `json:"upload"` - DownloadBytes int64 `json:"download"` - SessionStart time.Time `json:"sessionStart"` - SessionClose time.Time `json:"sessionClose"` -} - -// Track SessionConn -type Conn struct { - *Session - net.Conn - once sync.Once -} - -func (c *Conn) Read(b []byte) (n int, err error) { - n, err = c.Conn.Read(b) - if n > 0 { - atomic.AddInt64(&c.DownloadBytes, int64(n)) - } - return -} - -func (c *Conn) Write(b []byte) (n int, err error) { - n, err = c.Conn.Write(b) - if n > 0 { - atomic.AddInt64(&c.UploadBytes, int64(n)) - } - return -} - -func (c *Conn) Close() error { - c.once.Do(func() { - c.SessionClose = time.Now() - }) - return c.Conn.Close() -} - -// Track SessionPacketConn -type PacketConn struct { - *Session - net.PacketConn - once sync.Once -} - -func (c *PacketConn) ReadFrom(b []byte) (n int, addr net.Addr, err error) { - n, addr, err = c.PacketConn.ReadFrom(b) - if n > 0 { - atomic.AddInt64(&c.DownloadBytes, int64(n)) - } - return -} - -func (c *PacketConn) WriteTo(b []byte, addr net.Addr) (n int, err error) { - n, err = c.PacketConn.WriteTo(b, addr) - if n > 0 { - atomic.AddInt64(&c.UploadBytes, int64(n)) - } - return -} - -func (c *PacketConn) Close() error { - c.once.Do(func() { - c.SessionClose = time.Now() - }) - return c.PacketConn.Close() -} diff --git a/component/session/utils.go b/component/session/utils.go deleted file mode 100644 index 623aa0c..0000000 --- a/component/session/utils.go +++ /dev/null @@ -1,174 +0,0 @@ -package session - -import ( - "fmt" - "strings" - "time" - - C "github.com/shirou/gopsutil/cpu" - H "github.com/shirou/gopsutil/host" - M "github.com/shirou/gopsutil/mem" -) - -var startTime time.Time - -func init() { - startTime = time.Now() -} - -func cpu() string { - c, err := C.Percent(0, false) - if err != nil || len(c) != 1 { - return "N/A" - } - return fmt.Sprintf("%.1f%%", c[0]) -} - -func platform() string { - h, err := H.Info() - if err != nil { - return "N/A" - } - return fmt.Sprintf("%s-%s", h.Platform, h.KernelVersion) -} - -func mem() string { - m, err := M.VirtualMemory() - if err != nil { - return "N/A" - } - return fmt.Sprintf("%.1f%%", m.UsedPercent) -} - -func date(t time.Time) string { - return t.Format("Mon Jan 2 15:04:05") -} - -func duration(start, end time.Time) string { - var t time.Duration - if end.IsZero() { - t = time.Now().Sub(start) - } else { - t = end.Sub(start) - } - - switch { - case t < 1000*time.Millisecond: - t = t.Round(time.Millisecond) - default: - t = t.Round(time.Second) - } - return t.String() -} - -func uptime() string { - // Time difference function - diff := func(a, b time.Time) (year, month, day, hour, min, sec int) { - if a.Location() != b.Location() { - b = b.In(a.Location()) - } - if a.After(b) { - a, b = b, a - } - y1, M1, d1 := a.Date() - y2, M2, d2 := b.Date() - - h1, m1, s1 := a.Clock() - h2, m2, s2 := b.Clock() - - year = int(y2 - y1) - month = int(M2 - M1) - day = int(d2 - d1) - hour = int(h2 - h1) - min = int(m2 - m1) - sec = int(s2 - s1) - - // Normalize negative values - if sec < 0 { - sec += 60 - min-- - } - if min < 0 { - min += 60 - hour-- - } - if hour < 0 { - hour += 24 - day-- - } - if day < 0 { - // days in month: - t := time.Date(y1, M1, 32, 0, 0, 0, 0, time.UTC) - day += 32 - t.Day() - month-- - } - if month < 0 { - month += 12 - year-- - } - - return - } - - // Y M d h m s - now := time.Now() - year, month, day, hour, min, sec := diff(startTime, now) - - var Y, M, d, h, m, s string - - // Y M d - if year != 0 { - Y = fmt.Sprintf("%dY,", year) - } - - if month != 0 { - M = fmt.Sprintf("%dM,", month) - } - - if day != 0 { - d = fmt.Sprintf("%dd,", day) - } - - // h m s - if hour != 0 { - h = fmt.Sprintf("%dh", hour) - } - - if min != 0 { - m = fmt.Sprintf("%dm", min) - } - - if sec != 0 { - s = fmt.Sprintf("%ds", sec) - } - - return strings.Join([]string{Y, M, d, h, m, s}, "") -} - -func byteCountSI(b int64) string { - const unit = 1000 - if b < unit { - return fmt.Sprintf("%d B", b) - } - div, exp := int64(unit), 0 - for n := b / unit; n >= unit; n /= unit { - div *= unit - exp++ - } - return fmt.Sprintf("%.1f %cB", - float64(b)/float64(div), "kMGTPE"[exp]) -} - -func byteCountIEC(b int64) string { - const unit = 1024 - if b < unit { - return fmt.Sprintf("%d B", b) - } - div, exp := int64(unit), 0 - for n := b / unit; n >= unit; n /= unit { - div *= unit - exp++ - } - return fmt.Sprintf("%.1f %ciB", - float64(b)/float64(div), "KMGTPE"[exp]) -} diff --git a/constant/version.go b/constant/version.go deleted file mode 100644 index 32a3a4f..0000000 --- a/constant/version.go +++ /dev/null @@ -1,5 +0,0 @@ -package constant - -var ( - Version = "v0.0.0-0-00000000" -) diff --git a/core/addr.go b/core/addr.go deleted file mode 100755 index 436c04d..0000000 --- a/core/addr.go +++ /dev/null @@ -1,46 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/tcp.h" -#include -*/ -import "C" -import ( - "errors" - "net" - "strconv" - "unsafe" -) - -// ipaddr_ntoa() is using a global static buffer to return result, -// reentrants are not allowed, caller is required to lock lwipMutex. -func ipAddrNTOA(ipaddr C.struct_ip_addr) string { - return C.GoString(C.ipaddr_ntoa(&ipaddr)) -} - -func ipAddrATON(cp string, addr *C.struct_ip_addr) error { - ccp := C.CString(cp) - defer C.free(unsafe.Pointer(ccp)) - if r := C.ipaddr_aton(ccp, addr); r == 0 { - return errors.New("failed to convert IP address") - } else { - return nil - } -} - -func ParseTCPAddr(addr string, port uint16) *net.TCPAddr { - netAddr, err := net.ResolveTCPAddr("tcp", net.JoinHostPort(addr, strconv.Itoa(int(port)))) - if err != nil { - return nil - } - return netAddr -} - -func ParseUDPAddr(addr string, port uint16) *net.UDPAddr { - netAddr, err := net.ResolveUDPAddr("udp", net.JoinHostPort(addr, strconv.Itoa(int(port)))) - if err != nil { - return nil - } - return netAddr -} diff --git a/core/buffer_pool.go b/core/buffer_pool.go deleted file mode 100755 index e60371a..0000000 --- a/core/buffer_pool.go +++ /dev/null @@ -1,35 +0,0 @@ -package core - -import ( - "sync" -) - -var pool *sync.Pool - -const BufSize = 2 * 1024 - -func SetBufferPool(p *sync.Pool) { - pool = p -} - -func NewBytes(size int) []byte { - if size <= BufSize { - return pool.Get().([]byte) - } else { - return make([]byte, size) - } -} - -func FreeBytes(b []byte) { - if len(b) >= BufSize { - pool.Put(b) - } -} - -func init() { - SetBufferPool(&sync.Pool{ - New: func() interface{} { - return make([]byte, BufSize) - }, - }) -} diff --git a/core/c/core/altcp.c b/core/c/core/altcp.c deleted file mode 100755 index d42b727..0000000 --- a/core/c/core/altcp.c +++ /dev/null @@ -1,681 +0,0 @@ -/** - * @file - * @defgroup altcp Application layered TCP Functions - * @ingroup altcp_api - * - * This file contains the common functions for altcp to work. - * For more details see @ref altcp_api. - */ - -/** - * @defgroup altcp_api Application layered TCP Introduction - * @ingroup callbackstyle_api - * - * Overview - * -------- - * altcp (application layered TCP connection API; to be used from TCPIP thread) - * is an abstraction layer that prevents applications linking hard against the - * @ref tcp.h functions while providing the same functionality. It is used to - * e.g. add SSL/TLS (see LWIP_ALTCP_TLS) or proxy-connect support to an application - * written for the tcp callback API without that application knowing the - * protocol details. - * - * * This interface mimics the tcp callback API to the application while preventing - * direct linking (much like virtual functions). - * * This way, an application can make use of other application layer protocols - * on top of TCP without knowing the details (e.g. TLS, proxy connection). - * * This is achieved by simply including "lwip/altcp.h" instead of "lwip/tcp.h", - * replacing "struct tcp_pcb" with "struct altcp_pcb" and prefixing all functions - * with "altcp_" instead of "tcp_". - * - * With altcp support disabled (LWIP_ALTCP==0), applications written against the - * altcp API can still be compiled but are directly linked against the tcp.h - * callback API and then cannot use layered protocols. To minimize code changes - * in this case, the use of altcp_allocators is strongly suggested. - * - * Usage - * ----- - * To make use of this API from an existing tcp raw API application: - * * Include "lwip/altcp.h" instead of "lwip/tcp.h" - * * Replace "struct tcp_pcb" with "struct altcp_pcb" - * * Prefix all called tcp API functions with "altcp_" instead of "tcp_" to link - * against the altcp functions - * * @ref altcp_new (and @ref altcp_new_ip_type/@ref altcp_new_ip6) take - * an @ref altcp_allocator_t as an argument, whereas the original tcp API - * functions take no arguments. - * * An @ref altcp_allocator_t allocator is an object that holds a pointer to an - * allocator object and a corresponding state (e.g. for TLS, the corresponding - * state may hold certificates or keys). This way, the application does not - * even need to know if it uses TLS or pure TCP, this is handled at runtime - * by passing a specific allocator. - * * An application can alternatively bind hard to the altcp_tls API by calling - * @ref altcp_tls_new or @ref altcp_tls_wrap. - * * The TLS layer is not directly implemented by lwIP, but a port to mbedTLS is - * provided. - * * Another altcp layer is proxy-connect to use TLS behind a HTTP proxy (see - * @ref altcp_proxyconnect.h) - * - * altcp_allocator_t - * ----------------- - * An altcp allocator is created by the application by combining an allocator - * callback function and a corresponding state, e.g.:\code{.c} - * static const unsigned char cert[] = {0x2D, ... (see mbedTLS doc for how to create this)}; - * struct altcp_tls_config * conf = altcp_tls_create_config_client(cert, sizeof(cert)); - * altcp_allocator_t tls_allocator = { - * altcp_tls_alloc, conf - * }; - * \endcode - * - * - * struct altcp_tls_config - * ----------------------- - * The struct altcp_tls_config holds state that is needed to create new TLS client - * or server connections (e.g. certificates and private keys). - * - * It is not defined by lwIP itself but by the TLS port (e.g. altcp_tls to mbedTLS - * adaption). However, the parameters used to create it are defined in @ref - * altcp_tls.h (see @ref altcp_tls_create_config_server_privkey_cert for servers - * and @ref altcp_tls_create_config_client/@ref altcp_tls_create_config_client_2wayauth - * for clients). - * - * For mbedTLS, ensure that certificates can be parsed by 'mbedtls_x509_crt_parse()' and - * private keys can be parsed by 'mbedtls_pk_parse_key()'. - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ - -#include "lwip/opt.h" - -#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/altcp.h" -#include "lwip/priv/altcp_priv.h" -#include "lwip/altcp_tcp.h" -#include "lwip/tcp.h" -#include "lwip/mem.h" - -#include - -extern const struct altcp_functions altcp_tcp_functions; - -/** - * For altcp layer implementations only: allocate a new struct altcp_pcb from the pool - * and zero the memory - */ -struct altcp_pcb * -altcp_alloc(void) -{ - struct altcp_pcb *ret = (struct altcp_pcb *)memp_malloc(MEMP_ALTCP_PCB); - if (ret != NULL) { - memset(ret, 0, sizeof(struct altcp_pcb)); - } - return ret; -} - -/** - * For altcp layer implementations only: return a struct altcp_pcb to the pool - */ -void -altcp_free(struct altcp_pcb *conn) -{ - if (conn) { - if (conn->fns && conn->fns->dealloc) { - conn->fns->dealloc(conn); - } - memp_free(MEMP_ALTCP_PCB, conn); - } -} - -/** - * @ingroup altcp - * altcp_new_ip6: @ref altcp_new for IPv6 - */ -struct altcp_pcb * -altcp_new_ip6(altcp_allocator_t *allocator) -{ - return altcp_new_ip_type(allocator, IPADDR_TYPE_V6); -} - -/** - * @ingroup altcp - * altcp_new: @ref altcp_new for IPv4 - */ -struct altcp_pcb * -altcp_new(altcp_allocator_t *allocator) -{ - return altcp_new_ip_type(allocator, IPADDR_TYPE_V4); -} - -/** - * @ingroup altcp - * altcp_new_ip_type: called by applications to allocate a new pcb with the help of an - * allocator function. - * - * @param allocator allocator function and argument - * @param ip_type IP version of the pcb (@ref lwip_ip_addr_type) - * @return a new altcp_pcb or NULL on error - */ -struct altcp_pcb * -altcp_new_ip_type(altcp_allocator_t *allocator, u8_t ip_type) -{ - struct altcp_pcb *conn; - if (allocator == NULL) { - /* no allocator given, create a simple TCP connection */ - return altcp_tcp_new_ip_type(ip_type); - } - if (allocator->alloc == NULL) { - /* illegal allocator */ - return NULL; - } - conn = allocator->alloc(allocator->arg, ip_type); - if (conn == NULL) { - /* allocation failed */ - return NULL; - } - return conn; -} - -/** - * @ingroup altcp - * @see tcp_arg() - */ -void -altcp_arg(struct altcp_pcb *conn, void *arg) -{ - if (conn) { - conn->arg = arg; - } -} - -/** - * @ingroup altcp - * @see tcp_accept() - */ -void -altcp_accept(struct altcp_pcb *conn, altcp_accept_fn accept) -{ - if (conn != NULL) { - conn->accept = accept; - } -} - -/** - * @ingroup altcp - * @see tcp_recv() - */ -void -altcp_recv(struct altcp_pcb *conn, altcp_recv_fn recv) -{ - if (conn) { - conn->recv = recv; - } -} - -/** - * @ingroup altcp - * @see tcp_sent() - */ -void -altcp_sent(struct altcp_pcb *conn, altcp_sent_fn sent) -{ - if (conn) { - conn->sent = sent; - } -} - -/** - * @ingroup altcp - * @see tcp_poll() - */ -void -altcp_poll(struct altcp_pcb *conn, altcp_poll_fn poll, u8_t interval) -{ - if (conn) { - conn->poll = poll; - conn->pollinterval = interval; - if (conn->fns && conn->fns->set_poll) { - conn->fns->set_poll(conn, interval); - } - } -} - -/** - * @ingroup altcp - * @see tcp_err() - */ -void -altcp_err(struct altcp_pcb *conn, altcp_err_fn err) -{ - if (conn) { - conn->err = err; - } -} - -/* Generic functions calling the "virtual" ones */ - -/** - * @ingroup altcp - * @see tcp_recved() - */ -void -altcp_recved(struct altcp_pcb *conn, u16_t len) -{ - if (conn && conn->fns && conn->fns->recved) { - conn->fns->recved(conn, len); - } -} - -/** - * @ingroup altcp - * @see tcp_bind() - */ -err_t -altcp_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port) -{ - if (conn && conn->fns && conn->fns->bind) { - return conn->fns->bind(conn, ipaddr, port); - } - return ERR_VAL; -} - -/** - * @ingroup altcp - * @see tcp_connect() - */ -err_t -altcp_connect(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected) -{ - if (conn && conn->fns && conn->fns->connect) { - return conn->fns->connect(conn, ipaddr, port, connected); - } - return ERR_VAL; -} - -/** - * @ingroup altcp - * @see tcp_listen_with_backlog_and_err() - */ -struct altcp_pcb * -altcp_listen_with_backlog_and_err(struct altcp_pcb *conn, u8_t backlog, err_t *err) -{ - if (conn && conn->fns && conn->fns->listen) { - return conn->fns->listen(conn, backlog, err); - } - return NULL; -} - -/** - * @ingroup altcp - * @see tcp_abort() - */ -void -altcp_abort(struct altcp_pcb *conn) -{ - if (conn && conn->fns && conn->fns->abort) { - conn->fns->abort(conn); - } -} - -/** - * @ingroup altcp - * @see tcp_close() - */ -err_t -altcp_close(struct altcp_pcb *conn) -{ - if (conn && conn->fns && conn->fns->close) { - return conn->fns->close(conn); - } - return ERR_VAL; -} - -/** - * @ingroup altcp - * @see tcp_shutdown() - */ -err_t -altcp_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx) -{ - if (conn && conn->fns && conn->fns->shutdown) { - return conn->fns->shutdown(conn, shut_rx, shut_tx); - } - return ERR_VAL; -} - -/** - * @ingroup altcp - * @see tcp_write() - */ -err_t -altcp_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags) -{ - if (conn && conn->fns && conn->fns->write) { - return conn->fns->write(conn, dataptr, len, apiflags); - } - return ERR_VAL; -} - -/** - * @ingroup altcp - * @see tcp_output() - */ -err_t -altcp_output(struct altcp_pcb *conn) -{ - if (conn && conn->fns && conn->fns->output) { - return conn->fns->output(conn); - } - return ERR_VAL; -} - -/** - * @ingroup altcp - * @see tcp_mss() - */ -u16_t -altcp_mss(struct altcp_pcb *conn) -{ - if (conn && conn->fns && conn->fns->mss) { - return conn->fns->mss(conn); - } - return 0; -} - -/** - * @ingroup altcp - * @see tcp_sndbuf() - */ -u16_t -altcp_sndbuf(struct altcp_pcb *conn) -{ - if (conn && conn->fns && conn->fns->sndbuf) { - return conn->fns->sndbuf(conn); - } - return 0; -} - -/** - * @ingroup altcp - * @see tcp_sndqueuelen() - */ -u16_t -altcp_sndqueuelen(struct altcp_pcb *conn) -{ - if (conn && conn->fns && conn->fns->sndqueuelen) { - return conn->fns->sndqueuelen(conn); - } - return 0; -} - -void -altcp_nagle_disable(struct altcp_pcb *conn) -{ - if (conn && conn->fns && conn->fns->nagle_disable) { - conn->fns->nagle_disable(conn); - } -} - -void -altcp_nagle_enable(struct altcp_pcb *conn) -{ - if (conn && conn->fns && conn->fns->nagle_enable) { - conn->fns->nagle_enable(conn); - } -} - -int -altcp_nagle_disabled(struct altcp_pcb *conn) -{ - if (conn && conn->fns && conn->fns->nagle_disabled) { - return conn->fns->nagle_disabled(conn); - } - return 0; -} - -/** - * @ingroup altcp - * @see tcp_setprio() - */ -void -altcp_setprio(struct altcp_pcb *conn, u8_t prio) -{ - if (conn && conn->fns && conn->fns->setprio) { - conn->fns->setprio(conn, prio); - } -} - -err_t -altcp_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port) -{ - if (conn && conn->fns && conn->fns->addrinfo) { - return conn->fns->addrinfo(conn, local, addr, port); - } - return ERR_VAL; -} - -ip_addr_t * -altcp_get_ip(struct altcp_pcb *conn, int local) -{ - if (conn && conn->fns && conn->fns->getip) { - return conn->fns->getip(conn, local); - } - return NULL; -} - -u16_t -altcp_get_port(struct altcp_pcb *conn, int local) -{ - if (conn && conn->fns && conn->fns->getport) { - return conn->fns->getport(conn, local); - } - return 0; -} - -#ifdef LWIP_DEBUG -enum tcp_state -altcp_dbg_get_tcp_state(struct altcp_pcb *conn) -{ - if (conn && conn->fns && conn->fns->dbg_get_tcp_state) { - return conn->fns->dbg_get_tcp_state(conn); - } - return CLOSED; -} -#endif - -/* Default implementations for the "virtual" functions */ - -void -altcp_default_set_poll(struct altcp_pcb *conn, u8_t interval) -{ - if (conn && conn->inner_conn) { - altcp_poll(conn->inner_conn, conn->poll, interval); - } -} - -void -altcp_default_recved(struct altcp_pcb *conn, u16_t len) -{ - if (conn && conn->inner_conn) { - altcp_recved(conn->inner_conn, len); - } -} - -err_t -altcp_default_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port) -{ - if (conn && conn->inner_conn) { - return altcp_bind(conn->inner_conn, ipaddr, port); - } - return ERR_VAL; -} - -err_t -altcp_default_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx) -{ - if (conn) { - if (shut_rx && shut_tx && conn->fns && conn->fns->close) { - /* default shutdown for both sides is close */ - return conn->fns->close(conn); - } - if (conn->inner_conn) { - return altcp_shutdown(conn->inner_conn, shut_rx, shut_tx); - } - } - return ERR_VAL; -} - -err_t -altcp_default_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags) -{ - if (conn && conn->inner_conn) { - return altcp_write(conn->inner_conn, dataptr, len, apiflags); - } - return ERR_VAL; -} - -err_t -altcp_default_output(struct altcp_pcb *conn) -{ - if (conn && conn->inner_conn) { - return altcp_output(conn->inner_conn); - } - return ERR_VAL; -} - -u16_t -altcp_default_mss(struct altcp_pcb *conn) -{ - if (conn && conn->inner_conn) { - return altcp_mss(conn->inner_conn); - } - return 0; -} - -u16_t -altcp_default_sndbuf(struct altcp_pcb *conn) -{ - if (conn && conn->inner_conn) { - return altcp_sndbuf(conn->inner_conn); - } - return 0; -} - -u16_t -altcp_default_sndqueuelen(struct altcp_pcb *conn) -{ - if (conn && conn->inner_conn) { - return altcp_sndqueuelen(conn->inner_conn); - } - return 0; -} - -void -altcp_default_nagle_disable(struct altcp_pcb *conn) -{ - if (conn && conn->inner_conn) { - altcp_nagle_disable(conn->inner_conn); - } -} - -void -altcp_default_nagle_enable(struct altcp_pcb *conn) -{ - if (conn && conn->inner_conn) { - altcp_nagle_enable(conn->inner_conn); - } -} - -int -altcp_default_nagle_disabled(struct altcp_pcb *conn) -{ - if (conn && conn->inner_conn) { - return altcp_nagle_disabled(conn->inner_conn); - } - return 0; -} - -void -altcp_default_setprio(struct altcp_pcb *conn, u8_t prio) -{ - if (conn && conn->inner_conn) { - altcp_setprio(conn->inner_conn, prio); - } -} - -void -altcp_default_dealloc(struct altcp_pcb *conn) -{ - LWIP_UNUSED_ARG(conn); - /* nothing to do */ -} - -err_t -altcp_default_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port) -{ - if (conn && conn->inner_conn) { - return altcp_get_tcp_addrinfo(conn->inner_conn, local, addr, port); - } - return ERR_VAL; -} - -ip_addr_t * -altcp_default_get_ip(struct altcp_pcb *conn, int local) -{ - if (conn && conn->inner_conn) { - return altcp_get_ip(conn->inner_conn, local); - } - return NULL; -} - -u16_t -altcp_default_get_port(struct altcp_pcb *conn, int local) -{ - if (conn && conn->inner_conn) { - return altcp_get_port(conn->inner_conn, local); - } - return 0; -} - -#ifdef LWIP_DEBUG -enum tcp_state -altcp_default_dbg_get_tcp_state(struct altcp_pcb *conn) -{ - if (conn && conn->inner_conn) { - return altcp_dbg_get_tcp_state(conn->inner_conn); - } - return CLOSED; -} -#endif - - -#endif /* LWIP_ALTCP */ diff --git a/core/c/core/altcp_alloc.c b/core/c/core/altcp_alloc.c deleted file mode 100755 index 8c2390e..0000000 --- a/core/c/core/altcp_alloc.c +++ /dev/null @@ -1,87 +0,0 @@ -/** - * @file - * Application layered TCP connection API (to be used from TCPIP thread)\n - * This interface mimics the tcp callback API to the application while preventing - * direct linking (much like virtual functions). - * This way, an application can make use of other application layer protocols - * on top of TCP without knowing the details (e.g. TLS, proxy connection). - * - * This file contains allocation implementation that combine several layers. - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ - -#include "lwip/opt.h" - -#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/altcp.h" -#include "lwip/altcp_tcp.h" -#include "lwip/altcp_tls.h" -#include "lwip/priv/altcp_priv.h" -#include "lwip/mem.h" - -#include - -#if LWIP_ALTCP_TLS - -/** This standard allocator function creates an altcp pcb for - * TLS over TCP */ -struct altcp_pcb * -altcp_tls_new(struct altcp_tls_config *config, u8_t ip_type) -{ - struct altcp_pcb *inner_conn, *ret; - LWIP_UNUSED_ARG(ip_type); - - inner_conn = altcp_tcp_new_ip_type(ip_type); - if (inner_conn == NULL) { - return NULL; - } - ret = altcp_tls_wrap(config, inner_conn); - if (ret == NULL) { - altcp_close(inner_conn); - } - return ret; -} - -/** This standard allocator function creates an altcp pcb for - * TLS over TCP */ -struct altcp_pcb * -altcp_tls_alloc(void *arg, u8_t ip_type) -{ - return altcp_tls_new((struct altcp_tls_config *)arg, ip_type); -} - -#endif /* LWIP_ALTCP_TLS */ - -#endif /* LWIP_ALTCP */ diff --git a/core/c/core/altcp_tcp.c b/core/c/core/altcp_tcp.c deleted file mode 100755 index f5b8e84..0000000 --- a/core/c/core/altcp_tcp.c +++ /dev/null @@ -1,543 +0,0 @@ -/** - * @file - * Application layered TCP connection API (to be used from TCPIP thread)\n - * This interface mimics the tcp callback API to the application while preventing - * direct linking (much like virtual functions). - * This way, an application can make use of other application layer protocols - * on top of TCP without knowing the details (e.g. TLS, proxy connection). - * - * This file contains the base implementation calling into tcp. - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ - -#include "lwip/opt.h" - -#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/altcp.h" -#include "lwip/altcp_tcp.h" -#include "lwip/priv/altcp_priv.h" -#include "lwip/tcp.h" -#include "lwip/mem.h" - -#include - -#define ALTCP_TCP_ASSERT_CONN(conn) do { \ - LWIP_ASSERT("conn->inner_conn == NULL", (conn)->inner_conn == NULL); \ - LWIP_UNUSED_ARG(conn); /* for LWIP_NOASSERT */ } while(0) -#define ALTCP_TCP_ASSERT_CONN_PCB(conn, tpcb) do { \ - LWIP_ASSERT("pcb mismatch", (conn)->state == tpcb); \ - LWIP_UNUSED_ARG(tpcb); /* for LWIP_NOASSERT */ \ - ALTCP_TCP_ASSERT_CONN(conn); } while(0) - - -/* Variable prototype, the actual declaration is at the end of this file - since it contains pointers to static functions declared here */ -extern const struct altcp_functions altcp_tcp_functions; - -static void altcp_tcp_setup(struct altcp_pcb *conn, struct tcp_pcb *tpcb); - -/* callback functions for TCP */ -static err_t -altcp_tcp_accept(void *arg, struct tcp_pcb *new_tpcb, err_t err) -{ - struct altcp_pcb *listen_conn = (struct altcp_pcb *)arg; - if (listen_conn && listen_conn->accept) { - /* create a new altcp_conn to pass to the next 'accept' callback */ - struct altcp_pcb *new_conn = altcp_alloc(); - if (new_conn == NULL) { - return ERR_MEM; - } - altcp_tcp_setup(new_conn, new_tpcb); - return listen_conn->accept(listen_conn->arg, new_conn, err); - } - return ERR_ARG; -} - -static err_t -altcp_tcp_connected(void *arg, struct tcp_pcb *tpcb, err_t err) -{ - struct altcp_pcb *conn = (struct altcp_pcb *)arg; - if (conn) { - ALTCP_TCP_ASSERT_CONN_PCB(conn, tpcb); - if (conn->connected) { - return conn->connected(conn->arg, conn, err); - } - } - return ERR_OK; -} - -static err_t -altcp_tcp_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err) -{ - struct altcp_pcb *conn = (struct altcp_pcb *)arg; - if (conn) { - ALTCP_TCP_ASSERT_CONN_PCB(conn, tpcb); - if (conn->recv) { - return conn->recv(conn->arg, conn, p, err); - } - } - if (p != NULL) { - /* prevent memory leaks */ - pbuf_free(p); - } - return ERR_OK; -} - -static err_t -altcp_tcp_sent(void *arg, struct tcp_pcb *tpcb, u16_t len) -{ - struct altcp_pcb *conn = (struct altcp_pcb *)arg; - if (conn) { - ALTCP_TCP_ASSERT_CONN_PCB(conn, tpcb); - if (conn->sent) { - return conn->sent(conn->arg, conn, len); - } - } - return ERR_OK; -} - -static err_t -altcp_tcp_poll(void *arg, struct tcp_pcb *tpcb) -{ - struct altcp_pcb *conn = (struct altcp_pcb *)arg; - if (conn) { - ALTCP_TCP_ASSERT_CONN_PCB(conn, tpcb); - if (conn->poll) { - return conn->poll(conn->arg, conn); - } - } - return ERR_OK; -} - -static void -altcp_tcp_err(void *arg, err_t err) -{ - struct altcp_pcb *conn = (struct altcp_pcb *)arg; - if (conn) { - conn->state = NULL; /* already freed */ - if (conn->err) { - conn->err(conn->arg, err); - } - altcp_free(conn); - } -} - -/* setup functions */ - -static void -altcp_tcp_remove_callbacks(struct tcp_pcb *tpcb) -{ - tcp_arg(tpcb, NULL); - tcp_recv(tpcb, NULL); - tcp_sent(tpcb, NULL); - tcp_err(tpcb, NULL); - tcp_poll(tpcb, NULL, tpcb->pollinterval); -} - -static void -altcp_tcp_setup_callbacks(struct altcp_pcb *conn, struct tcp_pcb *tpcb) -{ - tcp_arg(tpcb, conn); - tcp_recv(tpcb, altcp_tcp_recv); - tcp_sent(tpcb, altcp_tcp_sent); - tcp_err(tpcb, altcp_tcp_err); - /* tcp_poll is set when interval is set by application */ - /* listen is set totally different :-) */ -} - -static void -altcp_tcp_setup(struct altcp_pcb *conn, struct tcp_pcb *tpcb) -{ - altcp_tcp_setup_callbacks(conn, tpcb); - conn->state = tpcb; - conn->fns = &altcp_tcp_functions; -} - -struct altcp_pcb * -altcp_tcp_new_ip_type(u8_t ip_type) -{ - /* Allocate the tcp pcb first to invoke the priority handling code - if we're out of pcbs */ - struct tcp_pcb *tpcb = tcp_new_ip_type(ip_type); - if (tpcb != NULL) { - struct altcp_pcb *ret = altcp_alloc(); - if (ret != NULL) { - altcp_tcp_setup(ret, tpcb); - return ret; - } else { - /* altcp_pcb allocation failed -> free the tcp_pcb too */ - tcp_close(tpcb); - } - } - return NULL; -} - -/** altcp_tcp allocator function fitting to @ref altcp_allocator_t / @ref altcp_new. -* -* arg pointer is not used for TCP. -*/ -struct altcp_pcb * -altcp_tcp_alloc(void *arg, u8_t ip_type) -{ - LWIP_UNUSED_ARG(arg); - return altcp_tcp_new_ip_type(ip_type); -} - -struct altcp_pcb * -altcp_tcp_wrap(struct tcp_pcb *tpcb) -{ - if (tpcb != NULL) { - struct altcp_pcb *ret = altcp_alloc(); - if (ret != NULL) { - altcp_tcp_setup(ret, tpcb); - return ret; - } - } - return NULL; -} - - -/* "virtual" functions calling into tcp */ -static void -altcp_tcp_set_poll(struct altcp_pcb *conn, u8_t interval) -{ - if (conn != NULL) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - tcp_poll(pcb, altcp_tcp_poll, interval); - } -} - -static void -altcp_tcp_recved(struct altcp_pcb *conn, u16_t len) -{ - if (conn != NULL) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - tcp_recved(pcb, len); - } -} - -static err_t -altcp_tcp_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port) -{ - struct tcp_pcb *pcb; - if (conn == NULL) { - return ERR_VAL; - } - ALTCP_TCP_ASSERT_CONN(conn); - pcb = (struct tcp_pcb *)conn->state; - return tcp_bind(pcb, ipaddr, port); -} - -static err_t -altcp_tcp_connect(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected) -{ - struct tcp_pcb *pcb; - if (conn == NULL) { - return ERR_VAL; - } - ALTCP_TCP_ASSERT_CONN(conn); - conn->connected = connected; - pcb = (struct tcp_pcb *)conn->state; - return tcp_connect(pcb, ipaddr, port, altcp_tcp_connected); -} - -static struct altcp_pcb * -altcp_tcp_listen(struct altcp_pcb *conn, u8_t backlog, err_t *err) -{ - struct tcp_pcb *pcb; - struct tcp_pcb *lpcb; - if (conn == NULL) { - return NULL; - } - ALTCP_TCP_ASSERT_CONN(conn); - pcb = (struct tcp_pcb *)conn->state; - lpcb = tcp_listen_with_backlog_and_err(pcb, backlog, err); - if (lpcb != NULL) { - conn->state = lpcb; - tcp_accept(lpcb, altcp_tcp_accept); - return conn; - } - return NULL; -} - -static void -altcp_tcp_abort(struct altcp_pcb *conn) -{ - if (conn != NULL) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - if (pcb) { - tcp_abort(pcb); - } - } -} - -static err_t -altcp_tcp_close(struct altcp_pcb *conn) -{ - struct tcp_pcb *pcb; - if (conn == NULL) { - return ERR_VAL; - } - ALTCP_TCP_ASSERT_CONN(conn); - pcb = (struct tcp_pcb *)conn->state; - if (pcb) { - err_t err; - tcp_poll_fn oldpoll = pcb->poll; - altcp_tcp_remove_callbacks(pcb); - err = tcp_close(pcb); - if (err != ERR_OK) { - /* not closed, set up all callbacks again */ - altcp_tcp_setup_callbacks(conn, pcb); - /* poll callback is not included in the above */ - tcp_poll(pcb, oldpoll, pcb->pollinterval); - return err; - } - conn->state = NULL; /* unsafe to reference pcb after tcp_close(). */ - } - altcp_free(conn); - return ERR_OK; -} - -static err_t -altcp_tcp_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx) -{ - struct tcp_pcb *pcb; - if (conn == NULL) { - return ERR_VAL; - } - ALTCP_TCP_ASSERT_CONN(conn); - pcb = (struct tcp_pcb *)conn->state; - return tcp_shutdown(pcb, shut_rx, shut_tx); -} - -static err_t -altcp_tcp_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags) -{ - struct tcp_pcb *pcb; - if (conn == NULL) { - return ERR_VAL; - } - ALTCP_TCP_ASSERT_CONN(conn); - pcb = (struct tcp_pcb *)conn->state; - return tcp_write(pcb, dataptr, len, apiflags); -} - -static err_t -altcp_tcp_output(struct altcp_pcb *conn) -{ - struct tcp_pcb *pcb; - if (conn == NULL) { - return ERR_VAL; - } - ALTCP_TCP_ASSERT_CONN(conn); - pcb = (struct tcp_pcb *)conn->state; - return tcp_output(pcb); -} - -static u16_t -altcp_tcp_mss(struct altcp_pcb *conn) -{ - struct tcp_pcb *pcb; - if (conn == NULL) { - return 0; - } - ALTCP_TCP_ASSERT_CONN(conn); - pcb = (struct tcp_pcb *)conn->state; - return tcp_mss(pcb); -} - -static u16_t -altcp_tcp_sndbuf(struct altcp_pcb *conn) -{ - struct tcp_pcb *pcb; - if (conn == NULL) { - return 0; - } - ALTCP_TCP_ASSERT_CONN(conn); - pcb = (struct tcp_pcb *)conn->state; - return tcp_sndbuf(pcb); -} - -static u16_t -altcp_tcp_sndqueuelen(struct altcp_pcb *conn) -{ - struct tcp_pcb *pcb; - if (conn == NULL) { - return 0; - } - ALTCP_TCP_ASSERT_CONN(conn); - pcb = (struct tcp_pcb *)conn->state; - return tcp_sndqueuelen(pcb); -} - -static void -altcp_tcp_nagle_disable(struct altcp_pcb *conn) -{ - if (conn && conn->state) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - tcp_nagle_disable(pcb); - } -} - -static void -altcp_tcp_nagle_enable(struct altcp_pcb *conn) -{ - if (conn && conn->state) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - tcp_nagle_enable(pcb); - } -} - -static int -altcp_tcp_nagle_disabled(struct altcp_pcb *conn) -{ - if (conn && conn->state) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - return tcp_nagle_disabled(pcb); - } - return 0; -} - -static void -altcp_tcp_setprio(struct altcp_pcb *conn, u8_t prio) -{ - if (conn != NULL) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - tcp_setprio(pcb, prio); - } -} - -static void -altcp_tcp_dealloc(struct altcp_pcb *conn) -{ - LWIP_UNUSED_ARG(conn); - ALTCP_TCP_ASSERT_CONN(conn); - /* no private state to clean up */ -} - -static err_t -altcp_tcp_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port) -{ - if (conn) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - return tcp_tcp_get_tcp_addrinfo(pcb, local, addr, port); - } - return ERR_VAL; -} - -static ip_addr_t * -altcp_tcp_get_ip(struct altcp_pcb *conn, int local) -{ - if (conn) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - if (pcb) { - if (local) { - return &pcb->local_ip; - } else { - return &pcb->remote_ip; - } - } - } - return NULL; -} - -static u16_t -altcp_tcp_get_port(struct altcp_pcb *conn, int local) -{ - if (conn) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - if (pcb) { - if (local) { - return pcb->local_port; - } else { - return pcb->remote_port; - } - } - } - return 0; -} - -#ifdef LWIP_DEBUG -static enum tcp_state -altcp_tcp_dbg_get_tcp_state(struct altcp_pcb *conn) -{ - if (conn) { - struct tcp_pcb *pcb = (struct tcp_pcb *)conn->state; - ALTCP_TCP_ASSERT_CONN(conn); - if (pcb) { - return pcb->state; - } - } - return CLOSED; -} -#endif -const struct altcp_functions altcp_tcp_functions = { - altcp_tcp_set_poll, - altcp_tcp_recved, - altcp_tcp_bind, - altcp_tcp_connect, - altcp_tcp_listen, - altcp_tcp_abort, - altcp_tcp_close, - altcp_tcp_shutdown, - altcp_tcp_write, - altcp_tcp_output, - altcp_tcp_mss, - altcp_tcp_sndbuf, - altcp_tcp_sndqueuelen, - altcp_tcp_nagle_disable, - altcp_tcp_nagle_enable, - altcp_tcp_nagle_disabled, - altcp_tcp_setprio, - altcp_tcp_dealloc, - altcp_tcp_get_tcp_addrinfo, - altcp_tcp_get_ip, - altcp_tcp_get_port -#ifdef LWIP_DEBUG - , altcp_tcp_dbg_get_tcp_state -#endif -}; - -#endif /* LWIP_ALTCP */ diff --git a/core/c/core/def.c b/core/c/core/def.c deleted file mode 100755 index 004a528..0000000 --- a/core/c/core/def.c +++ /dev/null @@ -1,240 +0,0 @@ -/** - * @file - * Common functions used throughout the stack. - * - * These are reference implementations of the byte swapping functions. - * Again with the aim of being simple, correct and fully portable. - * Byte swapping is the second thing you would want to optimize. You will - * need to port it to your architecture and in your cc.h: - * - * \#define lwip_htons(x) your_htons - * \#define lwip_htonl(x) your_htonl - * - * Note lwip_ntohs() and lwip_ntohl() are merely references to the htonx counterparts. - * - * If you \#define them to htons() and htonl(), you should - * \#define LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS to prevent lwIP from - * defining htonx/ntohx compatibility macros. - - * @defgroup sys_nonstandard Non-standard functions - * @ingroup sys_layer - * lwIP provides default implementations for non-standard functions. - * These can be mapped to OS functions to reduce code footprint if desired. - * All defines related to this section must not be placed in lwipopts.h, - * but in arch/cc.h! - * These options cannot be \#defined in lwipopts.h since they are not options - * of lwIP itself, but options of the lwIP port to your system. - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ - -#include "lwip/opt.h" -#include "lwip/def.h" - -#include - -#if BYTE_ORDER == LITTLE_ENDIAN - -#if !defined(lwip_htons) -/** - * Convert an u16_t from host- to network byte order. - * - * @param n u16_t in host byte order - * @return n in network byte order - */ -u16_t -lwip_htons(u16_t n) -{ - return PP_HTONS(n); -} -#endif /* lwip_htons */ - -#if !defined(lwip_htonl) -/** - * Convert an u32_t from host- to network byte order. - * - * @param n u32_t in host byte order - * @return n in network byte order - */ -u32_t -lwip_htonl(u32_t n) -{ - return PP_HTONL(n); -} -#endif /* lwip_htonl */ - -#endif /* BYTE_ORDER == LITTLE_ENDIAN */ - -#ifndef lwip_strnstr -/** - * @ingroup sys_nonstandard - * lwIP default implementation for strnstr() non-standard function. - * This can be \#defined to strnstr() depending on your platform port. - */ -char * -lwip_strnstr(const char *buffer, const char *token, size_t n) -{ - const char *p; - size_t tokenlen = strlen(token); - if (tokenlen == 0) { - return LWIP_CONST_CAST(char *, buffer); - } - for (p = buffer; *p && (p + tokenlen <= buffer + n); p++) { - if ((*p == *token) && (strncmp(p, token, tokenlen) == 0)) { - return LWIP_CONST_CAST(char *, p); - } - } - return NULL; -} -#endif - -#ifndef lwip_stricmp -/** - * @ingroup sys_nonstandard - * lwIP default implementation for stricmp() non-standard function. - * This can be \#defined to stricmp() depending on your platform port. - */ -int -lwip_stricmp(const char *str1, const char *str2) -{ - char c1, c2; - - do { - c1 = *str1++; - c2 = *str2++; - if (c1 != c2) { - char c1_upc = c1 | 0x20; - if ((c1_upc >= 'a') && (c1_upc <= 'z')) { - /* characters are not equal an one is in the alphabet range: - downcase both chars and check again */ - char c2_upc = c2 | 0x20; - if (c1_upc != c2_upc) { - /* still not equal */ - /* don't care for < or > */ - return 1; - } - } else { - /* characters are not equal but none is in the alphabet range */ - return 1; - } - } - } while (c1 != 0); - return 0; -} -#endif - -#ifndef lwip_strnicmp -/** - * @ingroup sys_nonstandard - * lwIP default implementation for strnicmp() non-standard function. - * This can be \#defined to strnicmp() depending on your platform port. - */ -int -lwip_strnicmp(const char *str1, const char *str2, size_t len) -{ - char c1, c2; - - do { - c1 = *str1++; - c2 = *str2++; - if (c1 != c2) { - char c1_upc = c1 | 0x20; - if ((c1_upc >= 'a') && (c1_upc <= 'z')) { - /* characters are not equal an one is in the alphabet range: - downcase both chars and check again */ - char c2_upc = c2 | 0x20; - if (c1_upc != c2_upc) { - /* still not equal */ - /* don't care for < or > */ - return 1; - } - } else { - /* characters are not equal but none is in the alphabet range */ - return 1; - } - } - len--; - } while ((len != 0) && (c1 != 0)); - return 0; -} -#endif - -#ifndef lwip_itoa -/** - * @ingroup sys_nonstandard - * lwIP default implementation for itoa() non-standard function. - * This can be \#defined to itoa() or snprintf(result, bufsize, "%d", number) depending on your platform port. - */ -void -lwip_itoa(char *result, size_t bufsize, int number) -{ - char *res = result; - char *tmp = result + bufsize - 1; - int n = (number >= 0) ? number : -number; - - /* handle invalid bufsize */ - if (bufsize < 2) { - if (bufsize == 1) { - *result = 0; - } - return; - } - - /* First, add sign */ - if (number < 0) { - *res++ = '-'; - } - /* Then create the string from the end and stop if buffer full, - and ensure output string is zero terminated */ - *tmp = 0; - while ((n != 0) && (tmp > res)) { - char val = (char)('0' + (n % 10)); - tmp--; - *tmp = val; - n = n / 10; - } - if (n) { - /* buffer is too small */ - *result = 0; - return; - } - if (*tmp == 0) { - /* Nothing added? */ - *res++ = '0'; - *res++ = 0; - return; - } - /* move from temporary buffer to output buffer (sign is not moved) */ - memmove(res, tmp, (size_t)((result + bufsize) - tmp)); -} -#endif diff --git a/core/c/core/dns.c b/core/c/core/dns.c deleted file mode 100755 index 737b339..0000000 --- a/core/c/core/dns.c +++ /dev/null @@ -1,1631 +0,0 @@ -/** - * @file - * DNS - host name to IP address resolver. - * - * @defgroup dns DNS - * @ingroup callbackstyle_api - * - * Implements a DNS host name to IP address resolver. - * - * The lwIP DNS resolver functions are used to lookup a host name and - * map it to a numerical IP address. It maintains a list of resolved - * hostnames that can be queried with the dns_lookup() function. - * New hostnames can be resolved using the dns_query() function. - * - * The lwIP version of the resolver also adds a non-blocking version of - * gethostbyname() that will work with a raw API application. This function - * checks for an IP address string first and converts it if it is valid. - * gethostbyname() then does a dns_lookup() to see if the name is - * already in the table. If so, the IP is returned. If not, a query is - * issued and the function returns with a ERR_INPROGRESS status. The app - * using the dns client must then go into a waiting state. - * - * Once a hostname has been resolved (or found to be non-existent), - * the resolver code calls a specified callback function (which - * must be implemented by the module that uses the resolver). - * - * Multicast DNS queries are supported for names ending on ".local". - * However, only "One-Shot Multicast DNS Queries" are supported (RFC 6762 - * chapter 5.1), this is not a fully compliant implementation of continuous - * mDNS querying! - * - * All functions must be called from TCPIP thread. - * - * @see DNS_MAX_SERVERS - * @see LWIP_DHCP_MAX_DNS_SERVERS - * @see @ref netconn_common for thread-safe access. - */ - -/* - * Port to lwIP from uIP - * by Jim Pettinato April 2007 - * - * security fixes and more by Simon Goldschmidt - * - * uIP version Copyright (c) 2002-2003, Adam Dunkels. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote - * products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS - * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE - * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -/*----------------------------------------------------------------------------- - * RFC 1035 - Domain names - implementation and specification - * RFC 2181 - Clarifications to the DNS Specification - *----------------------------------------------------------------------------*/ - -/** @todo: define good default values (rfc compliance) */ -/** @todo: improve answer parsing, more checkings... */ -/** @todo: check RFC1035 - 7.3. Processing responses */ -/** @todo: one-shot mDNS: dual-stack fallback to another IP version */ - -/*----------------------------------------------------------------------------- - * Includes - *----------------------------------------------------------------------------*/ - -#include "lwip/opt.h" - -#if LWIP_DNS /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/def.h" -#include "lwip/udp.h" -#include "lwip/mem.h" -#include "lwip/memp.h" -#include "lwip/dns.h" -#include "lwip/prot/dns.h" - -#include - -/** Random generator function to create random TXIDs and source ports for queries */ -#ifndef DNS_RAND_TXID -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_XID) != 0) -#define DNS_RAND_TXID LWIP_RAND -#else -static u16_t dns_txid; -#define DNS_RAND_TXID() (++dns_txid) -#endif -#endif - -/** Limits the source port to be >= 1024 by default */ -#ifndef DNS_PORT_ALLOWED -#define DNS_PORT_ALLOWED(port) ((port) >= 1024) -#endif - -/** DNS resource record max. TTL (one week as default) */ -#ifndef DNS_MAX_TTL -#define DNS_MAX_TTL 604800 -#elif DNS_MAX_TTL > 0x7FFFFFFF -#error DNS_MAX_TTL must be a positive 32-bit value -#endif - -#if DNS_TABLE_SIZE > 255 -#error DNS_TABLE_SIZE must fit into an u8_t -#endif -#if DNS_MAX_SERVERS > 255 -#error DNS_MAX_SERVERS must fit into an u8_t -#endif - -/* The number of parallel requests (i.e. calls to dns_gethostbyname - * that cannot be answered from the DNS table. - * This is set to the table size by default. - */ -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) -#ifndef DNS_MAX_REQUESTS -#define DNS_MAX_REQUESTS DNS_TABLE_SIZE -#else -#if DNS_MAX_REQUESTS > 255 -#error DNS_MAX_REQUESTS must fit into an u8_t -#endif -#endif -#else -/* In this configuration, both arrays have to have the same size and are used - * like one entry (used/free) */ -#define DNS_MAX_REQUESTS DNS_TABLE_SIZE -#endif - -/* The number of UDP source ports used in parallel */ -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) -#ifndef DNS_MAX_SOURCE_PORTS -#define DNS_MAX_SOURCE_PORTS DNS_MAX_REQUESTS -#else -#if DNS_MAX_SOURCE_PORTS > 255 -#error DNS_MAX_SOURCE_PORTS must fit into an u8_t -#endif -#endif -#else -#ifdef DNS_MAX_SOURCE_PORTS -#undef DNS_MAX_SOURCE_PORTS -#endif -#define DNS_MAX_SOURCE_PORTS 1 -#endif - -#if LWIP_IPV4 && LWIP_IPV6 -#define LWIP_DNS_ADDRTYPE_IS_IPV6(t) (((t) == LWIP_DNS_ADDRTYPE_IPV6_IPV4) || ((t) == LWIP_DNS_ADDRTYPE_IPV6)) -#define LWIP_DNS_ADDRTYPE_MATCH_IP(t, ip) (IP_IS_V6_VAL(ip) ? LWIP_DNS_ADDRTYPE_IS_IPV6(t) : (!LWIP_DNS_ADDRTYPE_IS_IPV6(t))) -#define LWIP_DNS_ADDRTYPE_ARG(x) , x -#define LWIP_DNS_ADDRTYPE_ARG_OR_ZERO(x) x -#define LWIP_DNS_SET_ADDRTYPE(x, y) do { x = y; } while(0) -#else -#if LWIP_IPV6 -#define LWIP_DNS_ADDRTYPE_IS_IPV6(t) 1 -#else -#define LWIP_DNS_ADDRTYPE_IS_IPV6(t) 0 -#endif -#define LWIP_DNS_ADDRTYPE_MATCH_IP(t, ip) 1 -#define LWIP_DNS_ADDRTYPE_ARG(x) -#define LWIP_DNS_ADDRTYPE_ARG_OR_ZERO(x) 0 -#define LWIP_DNS_SET_ADDRTYPE(x, y) -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - -#if LWIP_DNS_SUPPORT_MDNS_QUERIES -#define LWIP_DNS_ISMDNS_ARG(x) , x -#else -#define LWIP_DNS_ISMDNS_ARG(x) -#endif - -/** DNS query message structure. - No packing needed: only used locally on the stack. */ -struct dns_query { - /* DNS query record starts with either a domain name or a pointer - to a name already present somewhere in the packet. */ - u16_t type; - u16_t cls; -}; -#define SIZEOF_DNS_QUERY 4 - -/** DNS answer message structure. - No packing needed: only used locally on the stack. */ -struct dns_answer { - /* DNS answer record starts with either a domain name or a pointer - to a name already present somewhere in the packet. */ - u16_t type; - u16_t cls; - u32_t ttl; - u16_t len; -}; -#define SIZEOF_DNS_ANSWER 10 -/* maximum allowed size for the struct due to non-packed */ -#define SIZEOF_DNS_ANSWER_ASSERT 12 - -/* DNS table entry states */ -typedef enum { - DNS_STATE_UNUSED = 0, - DNS_STATE_NEW = 1, - DNS_STATE_ASKING = 2, - DNS_STATE_DONE = 3 -} dns_state_enum_t; - -/** DNS table entry */ -struct dns_table_entry { - u32_t ttl; - ip_addr_t ipaddr; - u16_t txid; - u8_t state; - u8_t server_idx; - u8_t tmr; - u8_t retries; - u8_t seqno; -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) - u8_t pcb_idx; -#endif - char name[DNS_MAX_NAME_LENGTH]; -#if LWIP_IPV4 && LWIP_IPV6 - u8_t reqaddrtype; -#endif /* LWIP_IPV4 && LWIP_IPV6 */ -#if LWIP_DNS_SUPPORT_MDNS_QUERIES - u8_t is_mdns; -#endif -}; - -/** DNS request table entry: used when dns_gehostbyname cannot answer the - * request from the DNS table */ -struct dns_req_entry { - /* pointer to callback on DNS query done */ - dns_found_callback found; - /* argument passed to the callback function */ - void *arg; -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) - u8_t dns_table_idx; -#endif -#if LWIP_IPV4 && LWIP_IPV6 - u8_t reqaddrtype; -#endif /* LWIP_IPV4 && LWIP_IPV6 */ -}; - -#if DNS_LOCAL_HOSTLIST - -#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC -/** Local host-list. For hostnames in this list, no - * external name resolution is performed */ -static struct local_hostlist_entry *local_hostlist_dynamic; -#else /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ - -/** Defining this allows the local_hostlist_static to be placed in a different - * linker section (e.g. FLASH) */ -#ifndef DNS_LOCAL_HOSTLIST_STORAGE_PRE -#define DNS_LOCAL_HOSTLIST_STORAGE_PRE static -#endif /* DNS_LOCAL_HOSTLIST_STORAGE_PRE */ -/** Defining this allows the local_hostlist_static to be placed in a different - * linker section (e.g. FLASH) */ -#ifndef DNS_LOCAL_HOSTLIST_STORAGE_POST -#define DNS_LOCAL_HOSTLIST_STORAGE_POST -#endif /* DNS_LOCAL_HOSTLIST_STORAGE_POST */ -DNS_LOCAL_HOSTLIST_STORAGE_PRE struct local_hostlist_entry local_hostlist_static[] - DNS_LOCAL_HOSTLIST_STORAGE_POST = DNS_LOCAL_HOSTLIST_INIT; - -#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ - -static void dns_init_local(void); -static err_t dns_lookup_local(const char *hostname, ip_addr_t *addr LWIP_DNS_ADDRTYPE_ARG(u8_t dns_addrtype)); -#endif /* DNS_LOCAL_HOSTLIST */ - - -/* forward declarations */ -static void dns_recv(void *s, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port); -static void dns_check_entries(void); -static void dns_call_found(u8_t idx, ip_addr_t *addr); - -/*----------------------------------------------------------------------------- - * Globals - *----------------------------------------------------------------------------*/ - -/* DNS variables */ -static struct udp_pcb *dns_pcbs[DNS_MAX_SOURCE_PORTS]; -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) -static u8_t dns_last_pcb_idx; -#endif -static u8_t dns_seqno; -static struct dns_table_entry dns_table[DNS_TABLE_SIZE]; -static struct dns_req_entry dns_requests[DNS_MAX_REQUESTS]; -static ip_addr_t dns_servers[DNS_MAX_SERVERS]; - -#if LWIP_IPV4 -const ip_addr_t dns_mquery_v4group = DNS_MQUERY_IPV4_GROUP_INIT; -#endif /* LWIP_IPV4 */ -#if LWIP_IPV6 -const ip_addr_t dns_mquery_v6group = DNS_MQUERY_IPV6_GROUP_INIT; -#endif /* LWIP_IPV6 */ - -/** - * Initialize the resolver: set up the UDP pcb and configure the default server - * (if DNS_SERVER_ADDRESS is set). - */ -void -dns_init(void) -{ -#ifdef DNS_SERVER_ADDRESS - /* initialize default DNS server address */ - ip_addr_t dnsserver; - DNS_SERVER_ADDRESS(&dnsserver); - dns_setserver(0, &dnsserver); -#endif /* DNS_SERVER_ADDRESS */ - - LWIP_ASSERT("sanity check SIZEOF_DNS_QUERY", - sizeof(struct dns_query) == SIZEOF_DNS_QUERY); - LWIP_ASSERT("sanity check SIZEOF_DNS_ANSWER", - sizeof(struct dns_answer) <= SIZEOF_DNS_ANSWER_ASSERT); - - LWIP_DEBUGF(DNS_DEBUG, ("dns_init: initializing\n")); - - /* if dns client not yet initialized... */ -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) == 0) - if (dns_pcbs[0] == NULL) { - dns_pcbs[0] = udp_new_ip_type(IPADDR_TYPE_ANY); - LWIP_ASSERT("dns_pcbs[0] != NULL", dns_pcbs[0] != NULL); - - /* initialize DNS table not needed (initialized to zero since it is a - * global variable) */ - LWIP_ASSERT("For implicit initialization to work, DNS_STATE_UNUSED needs to be 0", - DNS_STATE_UNUSED == 0); - - /* initialize DNS client */ - udp_bind(dns_pcbs[0], IP_ANY_TYPE, 0); - udp_recv(dns_pcbs[0], dns_recv, NULL); - } -#endif - -#if DNS_LOCAL_HOSTLIST - dns_init_local(); -#endif -} - -/** - * @ingroup dns - * Initialize one of the DNS servers. - * - * @param numdns the index of the DNS server to set must be < DNS_MAX_SERVERS - * @param dnsserver IP address of the DNS server to set - */ -void -dns_setserver(u8_t numdns, const ip_addr_t *dnsserver) -{ - if (numdns < DNS_MAX_SERVERS) { - if (dnsserver != NULL) { - dns_servers[numdns] = (*dnsserver); - } else { - dns_servers[numdns] = *IP_ADDR_ANY; - } - } -} - -/** - * @ingroup dns - * Obtain one of the currently configured DNS server. - * - * @param numdns the index of the DNS server - * @return IP address of the indexed DNS server or "ip_addr_any" if the DNS - * server has not been configured. - */ -const ip_addr_t * -dns_getserver(u8_t numdns) -{ - if (numdns < DNS_MAX_SERVERS) { - return &dns_servers[numdns]; - } else { - return IP_ADDR_ANY; - } -} - -/** - * The DNS resolver client timer - handle retries and timeouts and should - * be called every DNS_TMR_INTERVAL milliseconds (every second by default). - */ -void -dns_tmr(void) -{ - LWIP_DEBUGF(DNS_DEBUG, ("dns_tmr: dns_check_entries\n")); - dns_check_entries(); -} - -#if DNS_LOCAL_HOSTLIST -static void -dns_init_local(void) -{ -#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC && defined(DNS_LOCAL_HOSTLIST_INIT) - size_t i; - struct local_hostlist_entry *entry; - /* Dynamic: copy entries from DNS_LOCAL_HOSTLIST_INIT to list */ - struct local_hostlist_entry local_hostlist_init[] = DNS_LOCAL_HOSTLIST_INIT; - size_t namelen; - for (i = 0; i < LWIP_ARRAYSIZE(local_hostlist_init); i++) { - struct local_hostlist_entry *init_entry = &local_hostlist_init[i]; - LWIP_ASSERT("invalid host name (NULL)", init_entry->name != NULL); - namelen = strlen(init_entry->name); - LWIP_ASSERT("namelen <= DNS_LOCAL_HOSTLIST_MAX_NAMELEN", namelen <= DNS_LOCAL_HOSTLIST_MAX_NAMELEN); - entry = (struct local_hostlist_entry *)memp_malloc(MEMP_LOCALHOSTLIST); - LWIP_ASSERT("mem-error in dns_init_local", entry != NULL); - if (entry != NULL) { - char *entry_name = (char *)entry + sizeof(struct local_hostlist_entry); - MEMCPY(entry_name, init_entry->name, namelen); - entry_name[namelen] = 0; - entry->name = entry_name; - entry->addr = init_entry->addr; - entry->next = local_hostlist_dynamic; - local_hostlist_dynamic = entry; - } - } -#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC && defined(DNS_LOCAL_HOSTLIST_INIT) */ -} - -/** - * @ingroup dns - * Iterate the local host-list for a hostname. - * - * @param iterator_fn a function that is called for every entry in the local host-list - * @param iterator_arg 3rd argument passed to iterator_fn - * @return the number of entries in the local host-list - */ -size_t -dns_local_iterate(dns_found_callback iterator_fn, void *iterator_arg) -{ - size_t i; -#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC - struct local_hostlist_entry *entry = local_hostlist_dynamic; - i = 0; - while (entry != NULL) { - if (iterator_fn != NULL) { - iterator_fn(entry->name, &entry->addr, iterator_arg); - } - i++; - entry = entry->next; - } -#else /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ - for (i = 0; i < LWIP_ARRAYSIZE(local_hostlist_static); i++) { - if (iterator_fn != NULL) { - iterator_fn(local_hostlist_static[i].name, &local_hostlist_static[i].addr, iterator_arg); - } - } -#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ - return i; -} - -/** - * @ingroup dns - * Scans the local host-list for a hostname. - * - * @param hostname Hostname to look for in the local host-list - * @param addr the first IP address for the hostname in the local host-list or - * IPADDR_NONE if not found. - * @param dns_addrtype - LWIP_DNS_ADDRTYPE_IPV4_IPV6: try to resolve IPv4 (ATTENTION: no fallback here!) - * - LWIP_DNS_ADDRTYPE_IPV6_IPV4: try to resolve IPv6 (ATTENTION: no fallback here!) - * - LWIP_DNS_ADDRTYPE_IPV4: try to resolve IPv4 only - * - LWIP_DNS_ADDRTYPE_IPV6: try to resolve IPv6 only - * @return ERR_OK if found, ERR_ARG if not found - */ -err_t -dns_local_lookup(const char *hostname, ip_addr_t *addr, u8_t dns_addrtype) -{ - LWIP_UNUSED_ARG(dns_addrtype); - return dns_lookup_local(hostname, addr LWIP_DNS_ADDRTYPE_ARG(dns_addrtype)); -} - -/* Internal implementation for dns_local_lookup and dns_lookup */ -static err_t -dns_lookup_local(const char *hostname, ip_addr_t *addr LWIP_DNS_ADDRTYPE_ARG(u8_t dns_addrtype)) -{ -#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC - struct local_hostlist_entry *entry = local_hostlist_dynamic; - while (entry != NULL) { - if ((lwip_stricmp(entry->name, hostname) == 0) && - LWIP_DNS_ADDRTYPE_MATCH_IP(dns_addrtype, entry->addr)) { - if (addr) { - ip_addr_copy(*addr, entry->addr); - } - return ERR_OK; - } - entry = entry->next; - } -#else /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ - size_t i; - for (i = 0; i < LWIP_ARRAYSIZE(local_hostlist_static); i++) { - if ((lwip_stricmp(local_hostlist_static[i].name, hostname) == 0) && - LWIP_DNS_ADDRTYPE_MATCH_IP(dns_addrtype, local_hostlist_static[i].addr)) { - if (addr) { - ip_addr_copy(*addr, local_hostlist_static[i].addr); - } - return ERR_OK; - } - } -#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ - return ERR_ARG; -} - -#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC -/** - * @ingroup dns - * Remove all entries from the local host-list for a specific hostname - * and/or IP address - * - * @param hostname hostname for which entries shall be removed from the local - * host-list - * @param addr address for which entries shall be removed from the local host-list - * @return the number of removed entries - */ -int -dns_local_removehost(const char *hostname, const ip_addr_t *addr) -{ - int removed = 0; - struct local_hostlist_entry *entry = local_hostlist_dynamic; - struct local_hostlist_entry *last_entry = NULL; - while (entry != NULL) { - if (((hostname == NULL) || !lwip_stricmp(entry->name, hostname)) && - ((addr == NULL) || ip_addr_cmp(&entry->addr, addr))) { - struct local_hostlist_entry *free_entry; - if (last_entry != NULL) { - last_entry->next = entry->next; - } else { - local_hostlist_dynamic = entry->next; - } - free_entry = entry; - entry = entry->next; - memp_free(MEMP_LOCALHOSTLIST, free_entry); - removed++; - } else { - last_entry = entry; - entry = entry->next; - } - } - return removed; -} - -/** - * @ingroup dns - * Add a hostname/IP address pair to the local host-list. - * Duplicates are not checked. - * - * @param hostname hostname of the new entry - * @param addr IP address of the new entry - * @return ERR_OK if succeeded or ERR_MEM on memory error - */ -err_t -dns_local_addhost(const char *hostname, const ip_addr_t *addr) -{ - struct local_hostlist_entry *entry; - size_t namelen; - char *entry_name; - LWIP_ASSERT("invalid host name (NULL)", hostname != NULL); - namelen = strlen(hostname); - LWIP_ASSERT("namelen <= DNS_LOCAL_HOSTLIST_MAX_NAMELEN", namelen <= DNS_LOCAL_HOSTLIST_MAX_NAMELEN); - entry = (struct local_hostlist_entry *)memp_malloc(MEMP_LOCALHOSTLIST); - if (entry == NULL) { - return ERR_MEM; - } - entry_name = (char *)entry + sizeof(struct local_hostlist_entry); - MEMCPY(entry_name, hostname, namelen); - entry_name[namelen] = 0; - entry->name = entry_name; - ip_addr_copy(entry->addr, *addr); - entry->next = local_hostlist_dynamic; - local_hostlist_dynamic = entry; - return ERR_OK; -} -#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC*/ -#endif /* DNS_LOCAL_HOSTLIST */ - -/** - * @ingroup dns - * Look up a hostname in the array of known hostnames. - * - * @note This function only looks in the internal array of known - * hostnames, it does not send out a query for the hostname if none - * was found. The function dns_enqueue() can be used to send a query - * for a hostname. - * - * @param name the hostname to look up - * @param addr the hostname's IP address, as u32_t (instead of ip_addr_t to - * better check for failure: != IPADDR_NONE) or IPADDR_NONE if the hostname - * was not found in the cached dns_table. - * @return ERR_OK if found, ERR_ARG if not found - */ -static err_t -dns_lookup(const char *name, ip_addr_t *addr LWIP_DNS_ADDRTYPE_ARG(u8_t dns_addrtype)) -{ - u8_t i; -#if DNS_LOCAL_HOSTLIST - if (dns_lookup_local(name, addr LWIP_DNS_ADDRTYPE_ARG(dns_addrtype)) == ERR_OK) { - return ERR_OK; - } -#endif /* DNS_LOCAL_HOSTLIST */ -#ifdef DNS_LOOKUP_LOCAL_EXTERN - if (DNS_LOOKUP_LOCAL_EXTERN(name, addr, LWIP_DNS_ADDRTYPE_ARG_OR_ZERO(dns_addrtype)) == ERR_OK) { - return ERR_OK; - } -#endif /* DNS_LOOKUP_LOCAL_EXTERN */ - - /* Walk through name list, return entry if found. If not, return NULL. */ - for (i = 0; i < DNS_TABLE_SIZE; ++i) { - if ((dns_table[i].state == DNS_STATE_DONE) && - (lwip_strnicmp(name, dns_table[i].name, sizeof(dns_table[i].name)) == 0) && - LWIP_DNS_ADDRTYPE_MATCH_IP(dns_addrtype, dns_table[i].ipaddr)) { - LWIP_DEBUGF(DNS_DEBUG, ("dns_lookup: \"%s\": found = ", name)); - ip_addr_debug_print_val(DNS_DEBUG, dns_table[i].ipaddr); - LWIP_DEBUGF(DNS_DEBUG, ("\n")); - if (addr) { - ip_addr_copy(*addr, dns_table[i].ipaddr); - } - return ERR_OK; - } - } - - return ERR_ARG; -} - -/** - * Compare the "dotted" name "query" with the encoded name "response" - * to make sure an answer from the DNS server matches the current dns_table - * entry (otherwise, answers might arrive late for hostname not on the list - * any more). - * - * For now, this function compares case-insensitive to cope with all kinds of - * servers. This also means that "dns 0x20 bit encoding" must be checked - * externally, if we want to implement it. - * Currently, the request is sent exactly as passed in by he user request. - * - * @param query hostname (not encoded) from the dns_table - * @param p pbuf containing the encoded hostname in the DNS response - * @param start_offset offset into p where the name starts - * @return 0xFFFF: names differ, other: names equal -> offset behind name - */ -static u16_t -dns_compare_name(const char *query, struct pbuf *p, u16_t start_offset) -{ - int n; - u16_t response_offset = start_offset; - - do { - n = pbuf_try_get_at(p, response_offset); - if ((n < 0) || (response_offset == 0xFFFF)) { - /* error or overflow */ - return 0xFFFF; - } - response_offset++; - /** @see RFC 1035 - 4.1.4. Message compression */ - if ((n & 0xc0) == 0xc0) { - /* Compressed name: cannot be equal since we don't send them */ - return 0xFFFF; - } else { - /* Not compressed name */ - while (n > 0) { - int c = pbuf_try_get_at(p, response_offset); - if (c < 0) { - return 0xFFFF; - } - if (lwip_tolower((*query)) != lwip_tolower((u8_t)c)) { - return 0xFFFF; - } - if (response_offset == 0xFFFF) { - /* would overflow */ - return 0xFFFF; - } - response_offset++; - ++query; - --n; - } - ++query; - } - n = pbuf_try_get_at(p, response_offset); - if (n < 0) { - return 0xFFFF; - } - } while (n != 0); - - if (response_offset == 0xFFFF) { - /* would overflow */ - return 0xFFFF; - } - return (u16_t)(response_offset + 1); -} - -/** - * Walk through a compact encoded DNS name and return the end of the name. - * - * @param p pbuf containing the name - * @param query_idx start index into p pointing to encoded DNS name in the DNS server response - * @return index to end of the name - */ -static u16_t -dns_skip_name(struct pbuf *p, u16_t query_idx) -{ - int n; - u16_t offset = query_idx; - - do { - n = pbuf_try_get_at(p, offset++); - if ((n < 0) || (offset == 0)) { - return 0xFFFF; - } - /** @see RFC 1035 - 4.1.4. Message compression */ - if ((n & 0xc0) == 0xc0) { - /* Compressed name: since we only want to skip it (not check it), stop here */ - break; - } else { - /* Not compressed name */ - if (offset + n >= p->tot_len) { - return 0xFFFF; - } - offset = (u16_t)(offset + n); - } - n = pbuf_try_get_at(p, offset); - if (n < 0) { - return 0xFFFF; - } - } while (n != 0); - - if (offset == 0xFFFF) { - return 0xFFFF; - } - return (u16_t)(offset + 1); -} - -/** - * Send a DNS query packet. - * - * @param idx the DNS table entry index for which to send a request - * @return ERR_OK if packet is sent; an err_t indicating the problem otherwise - */ -static err_t -dns_send(u8_t idx) -{ - err_t err; - struct dns_hdr hdr; - struct dns_query qry; - struct pbuf *p; - u16_t query_idx, copy_len; - const char *hostname, *hostname_part; - u8_t n; - u8_t pcb_idx; - struct dns_table_entry *entry = &dns_table[idx]; - - LWIP_DEBUGF(DNS_DEBUG, ("dns_send: dns_servers[%"U16_F"] \"%s\": request\n", - (u16_t)(entry->server_idx), entry->name)); - LWIP_ASSERT("dns server out of array", entry->server_idx < DNS_MAX_SERVERS); - if (ip_addr_isany_val(dns_servers[entry->server_idx]) -#if LWIP_DNS_SUPPORT_MDNS_QUERIES - && !entry->is_mdns -#endif - ) { - /* DNS server not valid anymore, e.g. PPP netif has been shut down */ - /* call specified callback function if provided */ - dns_call_found(idx, NULL); - /* flush this entry */ - entry->state = DNS_STATE_UNUSED; - return ERR_OK; - } - - /* if here, we have either a new query or a retry on a previous query to process */ - p = pbuf_alloc(PBUF_TRANSPORT, (u16_t)(SIZEOF_DNS_HDR + strlen(entry->name) + 2 + - SIZEOF_DNS_QUERY), PBUF_RAM); - if (p != NULL) { - const ip_addr_t *dst; - u16_t dst_port; - /* fill dns header */ - memset(&hdr, 0, SIZEOF_DNS_HDR); - hdr.id = lwip_htons(entry->txid); - hdr.flags1 = DNS_FLAG1_RD; - hdr.numquestions = PP_HTONS(1); - pbuf_take(p, &hdr, SIZEOF_DNS_HDR); - hostname = entry->name; - --hostname; - - /* convert hostname into suitable query format. */ - query_idx = SIZEOF_DNS_HDR; - do { - ++hostname; - hostname_part = hostname; - for (n = 0; *hostname != '.' && *hostname != 0; ++hostname) { - ++n; - } - copy_len = (u16_t)(hostname - hostname_part); - if (query_idx + n + 1 > 0xFFFF) { - /* u16_t overflow */ - goto overflow_return; - } - pbuf_put_at(p, query_idx, n); - pbuf_take_at(p, hostname_part, copy_len, (u16_t)(query_idx + 1)); - query_idx = (u16_t)(query_idx + n + 1); - } while (*hostname != 0); - pbuf_put_at(p, query_idx, 0); - query_idx++; - - /* fill dns query */ - if (LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype)) { - qry.type = PP_HTONS(DNS_RRTYPE_AAAA); - } else { - qry.type = PP_HTONS(DNS_RRTYPE_A); - } - qry.cls = PP_HTONS(DNS_RRCLASS_IN); - pbuf_take_at(p, &qry, SIZEOF_DNS_QUERY, query_idx); - -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) - pcb_idx = entry->pcb_idx; -#else - pcb_idx = 0; -#endif - /* send dns packet */ - LWIP_DEBUGF(DNS_DEBUG, ("sending DNS request ID %d for name \"%s\" to server %d\r\n", - entry->txid, entry->name, entry->server_idx)); -#if LWIP_DNS_SUPPORT_MDNS_QUERIES - if (entry->is_mdns) { - dst_port = DNS_MQUERY_PORT; -#if LWIP_IPV6 - if (LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype)) { - dst = &dns_mquery_v6group; - } -#endif -#if LWIP_IPV4 && LWIP_IPV6 - else -#endif -#if LWIP_IPV4 - { - dst = &dns_mquery_v4group; - } -#endif - } else -#endif /* LWIP_DNS_SUPPORT_MDNS_QUERIES */ - { - dst_port = DNS_SERVER_PORT; - dst = &dns_servers[entry->server_idx]; - } - err = udp_sendto(dns_pcbs[pcb_idx], p, dst, dst_port); - - /* free pbuf */ - pbuf_free(p); - } else { - err = ERR_MEM; - } - - return err; -overflow_return: - pbuf_free(p); - return ERR_VAL; -} - -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) -static struct udp_pcb * -dns_alloc_random_port(void) -{ - err_t err; - struct udp_pcb *pcb; - - pcb = udp_new_ip_type(IPADDR_TYPE_ANY); - if (pcb == NULL) { - /* out of memory, have to reuse an existing pcb */ - return NULL; - } - do { - u16_t port = (u16_t)DNS_RAND_TXID(); - if (DNS_PORT_ALLOWED(port)) { - err = udp_bind(pcb, IP_ANY_TYPE, port); - } else { - /* this port is not allowed, try again */ - err = ERR_USE; - } - } while (err == ERR_USE); - if (err != ERR_OK) { - udp_remove(pcb); - return NULL; - } - udp_recv(pcb, dns_recv, NULL); - return pcb; -} - -/** - * dns_alloc_pcb() - allocates a new pcb (or reuses an existing one) to be used - * for sending a request - * - * @return an index into dns_pcbs - */ -static u8_t -dns_alloc_pcb(void) -{ - u8_t i; - u8_t idx; - - for (i = 0; i < DNS_MAX_SOURCE_PORTS; i++) { - if (dns_pcbs[i] == NULL) { - break; - } - } - if (i < DNS_MAX_SOURCE_PORTS) { - dns_pcbs[i] = dns_alloc_random_port(); - if (dns_pcbs[i] != NULL) { - /* succeeded */ - dns_last_pcb_idx = i; - return i; - } - } - /* if we come here, creating a new UDP pcb failed, so we have to use - an already existing one (so overflow is no issue) */ - for (i = 0, idx = (u8_t)(dns_last_pcb_idx + 1); i < DNS_MAX_SOURCE_PORTS; i++, idx++) { - if (idx >= DNS_MAX_SOURCE_PORTS) { - idx = 0; - } - if (dns_pcbs[idx] != NULL) { - dns_last_pcb_idx = idx; - return idx; - } - } - return DNS_MAX_SOURCE_PORTS; -} -#endif /* ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) */ - -/** - * dns_call_found() - call the found callback and check if there are duplicate - * entries for the given hostname. If there are any, their found callback will - * be called and they will be removed. - * - * @param idx dns table index of the entry that is resolved or removed - * @param addr IP address for the hostname (or NULL on error or memory shortage) - */ -static void -dns_call_found(u8_t idx, ip_addr_t *addr) -{ -#if ((LWIP_DNS_SECURE & (LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT)) != 0) - u8_t i; -#endif - -#if LWIP_IPV4 && LWIP_IPV6 - if (addr != NULL) { - /* check that address type matches the request and adapt the table entry */ - if (IP_IS_V6_VAL(*addr)) { - LWIP_ASSERT("invalid response", LWIP_DNS_ADDRTYPE_IS_IPV6(dns_table[idx].reqaddrtype)); - dns_table[idx].reqaddrtype = LWIP_DNS_ADDRTYPE_IPV6; - } else { - LWIP_ASSERT("invalid response", !LWIP_DNS_ADDRTYPE_IS_IPV6(dns_table[idx].reqaddrtype)); - dns_table[idx].reqaddrtype = LWIP_DNS_ADDRTYPE_IPV4; - } - } -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) - for (i = 0; i < DNS_MAX_REQUESTS; i++) { - if (dns_requests[i].found && (dns_requests[i].dns_table_idx == idx)) { - (*dns_requests[i].found)(dns_table[idx].name, addr, dns_requests[i].arg); - /* flush this entry */ - dns_requests[i].found = NULL; - } - } -#else - if (dns_requests[idx].found) { - (*dns_requests[idx].found)(dns_table[idx].name, addr, dns_requests[idx].arg); - } - dns_requests[idx].found = NULL; -#endif -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) - /* close the pcb used unless other request are using it */ - for (i = 0; i < DNS_MAX_REQUESTS; i++) { - if (i == idx) { - continue; /* only check other requests */ - } - if (dns_table[i].state == DNS_STATE_ASKING) { - if (dns_table[i].pcb_idx == dns_table[idx].pcb_idx) { - /* another request is still using the same pcb */ - dns_table[idx].pcb_idx = DNS_MAX_SOURCE_PORTS; - break; - } - } - } - if (dns_table[idx].pcb_idx < DNS_MAX_SOURCE_PORTS) { - /* if we come here, the pcb is not used any more and can be removed */ - udp_remove(dns_pcbs[dns_table[idx].pcb_idx]); - dns_pcbs[dns_table[idx].pcb_idx] = NULL; - dns_table[idx].pcb_idx = DNS_MAX_SOURCE_PORTS; - } -#endif -} - -/* Create a query transmission ID that is unique for all outstanding queries */ -static u16_t -dns_create_txid(void) -{ - u16_t txid; - u8_t i; - -again: - txid = (u16_t)DNS_RAND_TXID(); - - /* check whether the ID is unique */ - for (i = 0; i < DNS_TABLE_SIZE; i++) { - if ((dns_table[i].state == DNS_STATE_ASKING) && - (dns_table[i].txid == txid)) { - /* ID already used by another pending query */ - goto again; - } - } - - return txid; -} - -/** - * Check whether there are other backup DNS servers available to try - */ -static u8_t -dns_backupserver_available(struct dns_table_entry *pentry) -{ - u8_t ret = 0; - - if (pentry) { - if ((pentry->server_idx + 1 < DNS_MAX_SERVERS) && !ip_addr_isany_val(dns_servers[pentry->server_idx + 1])) { - ret = 1; - } - } - - return ret; -} - -/** - * dns_check_entry() - see if entry has not yet been queried and, if so, sends out a query. - * Check an entry in the dns_table: - * - send out query for new entries - * - retry old pending entries on timeout (also with different servers) - * - remove completed entries from the table if their TTL has expired - * - * @param i index of the dns_table entry to check - */ -static void -dns_check_entry(u8_t i) -{ - err_t err; - struct dns_table_entry *entry = &dns_table[i]; - - LWIP_ASSERT("array index out of bounds", i < DNS_TABLE_SIZE); - - switch (entry->state) { - case DNS_STATE_NEW: - /* initialize new entry */ - entry->txid = dns_create_txid(); - entry->state = DNS_STATE_ASKING; - entry->server_idx = 0; - entry->tmr = 1; - entry->retries = 0; - - /* send DNS packet for this entry */ - err = dns_send(i); - if (err != ERR_OK) { - LWIP_DEBUGF(DNS_DEBUG | LWIP_DBG_LEVEL_WARNING, - ("dns_send returned error: %s\n", lwip_strerr(err))); - } - break; - case DNS_STATE_ASKING: - if (--entry->tmr == 0) { - if (++entry->retries == DNS_MAX_RETRIES) { - if (dns_backupserver_available(entry) -#if LWIP_DNS_SUPPORT_MDNS_QUERIES - && !entry->is_mdns -#endif /* LWIP_DNS_SUPPORT_MDNS_QUERIES */ - ) { - /* change of server */ - entry->server_idx++; - entry->tmr = 1; - entry->retries = 0; - } else { - LWIP_DEBUGF(DNS_DEBUG, ("dns_check_entry: \"%s\": timeout\n", entry->name)); - /* call specified callback function if provided */ - dns_call_found(i, NULL); - /* flush this entry */ - entry->state = DNS_STATE_UNUSED; - break; - } - } else { - /* wait longer for the next retry */ - entry->tmr = entry->retries; - } - - /* send DNS packet for this entry */ - err = dns_send(i); - if (err != ERR_OK) { - LWIP_DEBUGF(DNS_DEBUG | LWIP_DBG_LEVEL_WARNING, - ("dns_send returned error: %s\n", lwip_strerr(err))); - } - } - break; - case DNS_STATE_DONE: - /* if the time to live is nul */ - if ((entry->ttl == 0) || (--entry->ttl == 0)) { - LWIP_DEBUGF(DNS_DEBUG, ("dns_check_entry: \"%s\": flush\n", entry->name)); - /* flush this entry, there cannot be any related pending entries in this state */ - entry->state = DNS_STATE_UNUSED; - } - break; - case DNS_STATE_UNUSED: - /* nothing to do */ - break; - default: - LWIP_ASSERT("unknown dns_table entry state:", 0); - break; - } -} - -/** - * Call dns_check_entry for each entry in dns_table - check all entries. - */ -static void -dns_check_entries(void) -{ - u8_t i; - - for (i = 0; i < DNS_TABLE_SIZE; ++i) { - dns_check_entry(i); - } -} - -/** - * Save TTL and call dns_call_found for correct response. - */ -static void -dns_correct_response(u8_t idx, u32_t ttl) -{ - struct dns_table_entry *entry = &dns_table[idx]; - - entry->state = DNS_STATE_DONE; - - LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": response = ", entry->name)); - ip_addr_debug_print_val(DNS_DEBUG, entry->ipaddr); - LWIP_DEBUGF(DNS_DEBUG, ("\n")); - - /* read the answer resource record's TTL, and maximize it if needed */ - entry->ttl = ttl; - if (entry->ttl > DNS_MAX_TTL) { - entry->ttl = DNS_MAX_TTL; - } - dns_call_found(idx, &entry->ipaddr); - - if (entry->ttl == 0) { - /* RFC 883, page 29: "Zero values are - interpreted to mean that the RR can only be used for the - transaction in progress, and should not be cached." - -> flush this entry now */ - /* entry reused during callback? */ - if (entry->state == DNS_STATE_DONE) { - entry->state = DNS_STATE_UNUSED; - } - } -} - -/** - * Receive input function for DNS response packets arriving for the dns UDP pcb. - */ -static void -dns_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) -{ - u8_t i; - u16_t txid; - u16_t res_idx; - struct dns_hdr hdr; - struct dns_answer ans; - struct dns_query qry; - u16_t nquestions, nanswers; - - LWIP_UNUSED_ARG(arg); - LWIP_UNUSED_ARG(pcb); - LWIP_UNUSED_ARG(port); - - /* is the dns message big enough ? */ - if (p->tot_len < (SIZEOF_DNS_HDR + SIZEOF_DNS_QUERY)) { - LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: pbuf too small\n")); - /* free pbuf and return */ - goto ignore_packet; - } - - /* copy dns payload inside static buffer for processing */ - if (pbuf_copy_partial(p, &hdr, SIZEOF_DNS_HDR, 0) == SIZEOF_DNS_HDR) { - /* Match the ID in the DNS header with the name table. */ - txid = lwip_htons(hdr.id); - for (i = 0; i < DNS_TABLE_SIZE; i++) { - struct dns_table_entry *entry = &dns_table[i]; - if ((entry->state == DNS_STATE_ASKING) && - (entry->txid == txid)) { - - /* We only care about the question(s) and the answers. The authrr - and the extrarr are simply discarded. */ - nquestions = lwip_htons(hdr.numquestions); - nanswers = lwip_htons(hdr.numanswers); - - /* Check for correct response. */ - if ((hdr.flags1 & DNS_FLAG1_RESPONSE) == 0) { - LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": not a response\n", entry->name)); - goto ignore_packet; /* ignore this packet */ - } - if (nquestions != 1) { - LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": response not match to query\n", entry->name)); - goto ignore_packet; /* ignore this packet */ - } - -#if LWIP_DNS_SUPPORT_MDNS_QUERIES - if (!entry->is_mdns) -#endif /* LWIP_DNS_SUPPORT_MDNS_QUERIES */ - { - /* Check whether response comes from the same network address to which the - question was sent. (RFC 5452) */ - if (!ip_addr_cmp(addr, &dns_servers[entry->server_idx])) { - goto ignore_packet; /* ignore this packet */ - } - } - - /* Check if the name in the "question" part match with the name in the entry and - skip it if equal. */ - res_idx = dns_compare_name(entry->name, p, SIZEOF_DNS_HDR); - if (res_idx == 0xFFFF) { - LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": response not match to query\n", entry->name)); - goto ignore_packet; /* ignore this packet */ - } - - /* check if "question" part matches the request */ - if (pbuf_copy_partial(p, &qry, SIZEOF_DNS_QUERY, res_idx) != SIZEOF_DNS_QUERY) { - goto ignore_packet; /* ignore this packet */ - } - if ((qry.cls != PP_HTONS(DNS_RRCLASS_IN)) || - (LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype) && (qry.type != PP_HTONS(DNS_RRTYPE_AAAA))) || - (!LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype) && (qry.type != PP_HTONS(DNS_RRTYPE_A)))) { - LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": response not match to query\n", entry->name)); - goto ignore_packet; /* ignore this packet */ - } - /* skip the rest of the "question" part */ - if (res_idx + SIZEOF_DNS_QUERY > 0xFFFF) { - goto ignore_packet; - } - res_idx = (u16_t)(res_idx + SIZEOF_DNS_QUERY); - - /* Check for error. If so, call callback to inform. */ - if (hdr.flags2 & DNS_FLAG2_ERR_MASK) { - LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": error in flags\n", entry->name)); - - /* if there is another backup DNS server to try - * then don't stop the DNS request - */ - if (dns_backupserver_available(entry)) { - /* avoid retrying the same server */ - entry->retries = DNS_MAX_RETRIES-1; - entry->tmr = 1; - - /* contact next available server for this entry */ - dns_check_entry(i); - - goto ignore_packet; - } - } else { - while ((nanswers > 0) && (res_idx < p->tot_len)) { - /* skip answer resource record's host name */ - res_idx = dns_skip_name(p, res_idx); - if (res_idx == 0xFFFF) { - goto ignore_packet; /* ignore this packet */ - } - - /* Check for IP address type and Internet class. Others are discarded. */ - if (pbuf_copy_partial(p, &ans, SIZEOF_DNS_ANSWER, res_idx) != SIZEOF_DNS_ANSWER) { - goto ignore_packet; /* ignore this packet */ - } - if (res_idx + SIZEOF_DNS_ANSWER > 0xFFFF) { - goto ignore_packet; - } - res_idx = (u16_t)(res_idx + SIZEOF_DNS_ANSWER); - - if (ans.cls == PP_HTONS(DNS_RRCLASS_IN)) { -#if LWIP_IPV4 - if ((ans.type == PP_HTONS(DNS_RRTYPE_A)) && (ans.len == PP_HTONS(sizeof(ip4_addr_t)))) { -#if LWIP_IPV4 && LWIP_IPV6 - if (!LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype)) -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - { - ip4_addr_t ip4addr; - /* read the IP address after answer resource record's header */ - if (pbuf_copy_partial(p, &ip4addr, sizeof(ip4_addr_t), res_idx) != sizeof(ip4_addr_t)) { - goto ignore_packet; /* ignore this packet */ - } - ip_addr_copy_from_ip4(dns_table[i].ipaddr, ip4addr); - pbuf_free(p); - /* handle correct response */ - dns_correct_response(i, lwip_ntohl(ans.ttl)); - return; - } - } -#endif /* LWIP_IPV4 */ -#if LWIP_IPV6 - if ((ans.type == PP_HTONS(DNS_RRTYPE_AAAA)) && (ans.len == PP_HTONS(sizeof(ip6_addr_p_t)))) { -#if LWIP_IPV4 && LWIP_IPV6 - if (LWIP_DNS_ADDRTYPE_IS_IPV6(entry->reqaddrtype)) -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - { - ip6_addr_p_t ip6addr; - /* read the IP address after answer resource record's header */ - if (pbuf_copy_partial(p, &ip6addr, sizeof(ip6_addr_p_t), res_idx) != sizeof(ip6_addr_p_t)) { - goto ignore_packet; /* ignore this packet */ - } - /* @todo: scope ip6addr? Might be required for link-local addresses at least? */ - ip_addr_copy_from_ip6_packed(dns_table[i].ipaddr, ip6addr); - pbuf_free(p); - /* handle correct response */ - dns_correct_response(i, lwip_ntohl(ans.ttl)); - return; - } - } -#endif /* LWIP_IPV6 */ - } - /* skip this answer */ - if ((int)(res_idx + lwip_htons(ans.len)) > 0xFFFF) { - goto ignore_packet; /* ignore this packet */ - } - res_idx = (u16_t)(res_idx + lwip_htons(ans.len)); - --nanswers; - } -#if LWIP_IPV4 && LWIP_IPV6 - if ((entry->reqaddrtype == LWIP_DNS_ADDRTYPE_IPV4_IPV6) || - (entry->reqaddrtype == LWIP_DNS_ADDRTYPE_IPV6_IPV4)) { - if (entry->reqaddrtype == LWIP_DNS_ADDRTYPE_IPV4_IPV6) { - /* IPv4 failed, try IPv6 */ - dns_table[i].reqaddrtype = LWIP_DNS_ADDRTYPE_IPV6; - } else { - /* IPv6 failed, try IPv4 */ - dns_table[i].reqaddrtype = LWIP_DNS_ADDRTYPE_IPV4; - } - pbuf_free(p); - dns_table[i].state = DNS_STATE_NEW; - dns_check_entry(i); - return; - } -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": error in response\n", entry->name)); - } - /* call callback to indicate error, clean up memory and return */ - pbuf_free(p); - dns_call_found(i, NULL); - dns_table[i].state = DNS_STATE_UNUSED; - return; - } - } - } - -ignore_packet: - /* deallocate memory and return */ - pbuf_free(p); - return; -} - -/** - * Queues a new hostname to resolve and sends out a DNS query for that hostname - * - * @param name the hostname that is to be queried - * @param hostnamelen length of the hostname - * @param found a callback function to be called on success, failure or timeout - * @param callback_arg argument to pass to the callback function - * @return err_t return code. - */ -static err_t -dns_enqueue(const char *name, size_t hostnamelen, dns_found_callback found, - void *callback_arg LWIP_DNS_ADDRTYPE_ARG(u8_t dns_addrtype) LWIP_DNS_ISMDNS_ARG(u8_t is_mdns)) -{ - u8_t i; - u8_t lseq, lseqi; - struct dns_table_entry *entry = NULL; - size_t namelen; - struct dns_req_entry *req; - -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) - u8_t r; - /* check for duplicate entries */ - for (i = 0; i < DNS_TABLE_SIZE; i++) { - if ((dns_table[i].state == DNS_STATE_ASKING) && - (lwip_strnicmp(name, dns_table[i].name, sizeof(dns_table[i].name)) == 0)) { -#if LWIP_IPV4 && LWIP_IPV6 - if (dns_table[i].reqaddrtype != dns_addrtype) { - /* requested address types don't match - this can lead to 2 concurrent requests, but mixing the address types - for the same host should not be that common */ - continue; - } -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - /* this is a duplicate entry, find a free request entry */ - for (r = 0; r < DNS_MAX_REQUESTS; r++) { - if (dns_requests[r].found == 0) { - dns_requests[r].found = found; - dns_requests[r].arg = callback_arg; - dns_requests[r].dns_table_idx = i; - LWIP_DNS_SET_ADDRTYPE(dns_requests[r].reqaddrtype, dns_addrtype); - LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": duplicate request\n", name)); - return ERR_INPROGRESS; - } - } - } - } - /* no duplicate entries found */ -#endif - - /* search an unused entry, or the oldest one */ - lseq = 0; - lseqi = DNS_TABLE_SIZE; - for (i = 0; i < DNS_TABLE_SIZE; ++i) { - entry = &dns_table[i]; - /* is it an unused entry ? */ - if (entry->state == DNS_STATE_UNUSED) { - break; - } - /* check if this is the oldest completed entry */ - if (entry->state == DNS_STATE_DONE) { - u8_t age = (u8_t)(dns_seqno - entry->seqno); - if (age > lseq) { - lseq = age; - lseqi = i; - } - } - } - - /* if we don't have found an unused entry, use the oldest completed one */ - if (i == DNS_TABLE_SIZE) { - if ((lseqi >= DNS_TABLE_SIZE) || (dns_table[lseqi].state != DNS_STATE_DONE)) { - /* no entry can be used now, table is full */ - LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": DNS entries table is full\n", name)); - return ERR_MEM; - } else { - /* use the oldest completed one */ - i = lseqi; - entry = &dns_table[i]; - } - } - -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING) != 0) - /* find a free request entry */ - req = NULL; - for (r = 0; r < DNS_MAX_REQUESTS; r++) { - if (dns_requests[r].found == NULL) { - req = &dns_requests[r]; - break; - } - } - if (req == NULL) { - /* no request entry can be used now, table is full */ - LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": DNS request entries table is full\n", name)); - return ERR_MEM; - } - req->dns_table_idx = i; -#else - /* in this configuration, the entry index is the same as the request index */ - req = &dns_requests[i]; -#endif - - /* use this entry */ - LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": use DNS entry %"U16_F"\n", name, (u16_t)(i))); - - /* fill the entry */ - entry->state = DNS_STATE_NEW; - entry->seqno = dns_seqno; - LWIP_DNS_SET_ADDRTYPE(entry->reqaddrtype, dns_addrtype); - LWIP_DNS_SET_ADDRTYPE(req->reqaddrtype, dns_addrtype); - req->found = found; - req->arg = callback_arg; - namelen = LWIP_MIN(hostnamelen, DNS_MAX_NAME_LENGTH - 1); - MEMCPY(entry->name, name, namelen); - entry->name[namelen] = 0; - -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) != 0) - entry->pcb_idx = dns_alloc_pcb(); - if (entry->pcb_idx >= DNS_MAX_SOURCE_PORTS) { - /* failed to get a UDP pcb */ - LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": failed to allocate a pcb\n", name)); - entry->state = DNS_STATE_UNUSED; - req->found = NULL; - return ERR_MEM; - } - LWIP_DEBUGF(DNS_DEBUG, ("dns_enqueue: \"%s\": use DNS pcb %"U16_F"\n", name, (u16_t)(entry->pcb_idx))); -#endif - -#if LWIP_DNS_SUPPORT_MDNS_QUERIES - entry->is_mdns = is_mdns; -#endif - - dns_seqno++; - - /* force to send query without waiting timer */ - dns_check_entry(i); - - /* dns query is enqueued */ - return ERR_INPROGRESS; -} - -/** - * @ingroup dns - * Resolve a hostname (string) into an IP address. - * NON-BLOCKING callback version for use with raw API!!! - * - * Returns immediately with one of err_t return codes: - * - ERR_OK if hostname is a valid IP address string or the host - * name is already in the local names table. - * - ERR_INPROGRESS enqueue a request to be sent to the DNS server - * for resolution if no errors are present. - * - ERR_ARG: dns client not initialized or invalid hostname - * - * @param hostname the hostname that is to be queried - * @param addr pointer to a ip_addr_t where to store the address if it is already - * cached in the dns_table (only valid if ERR_OK is returned!) - * @param found a callback function to be called on success, failure or timeout (only if - * ERR_INPROGRESS is returned!) - * @param callback_arg argument to pass to the callback function - * @return a err_t return code. - */ -err_t -dns_gethostbyname(const char *hostname, ip_addr_t *addr, dns_found_callback found, - void *callback_arg) -{ - return dns_gethostbyname_addrtype(hostname, addr, found, callback_arg, LWIP_DNS_ADDRTYPE_DEFAULT); -} - -/** - * @ingroup dns - * Like dns_gethostbyname, but returned address type can be controlled: - * @param hostname the hostname that is to be queried - * @param addr pointer to a ip_addr_t where to store the address if it is already - * cached in the dns_table (only valid if ERR_OK is returned!) - * @param found a callback function to be called on success, failure or timeout (only if - * ERR_INPROGRESS is returned!) - * @param callback_arg argument to pass to the callback function - * @param dns_addrtype - LWIP_DNS_ADDRTYPE_IPV4_IPV6: try to resolve IPv4 first, try IPv6 if IPv4 fails only - * - LWIP_DNS_ADDRTYPE_IPV6_IPV4: try to resolve IPv6 first, try IPv4 if IPv6 fails only - * - LWIP_DNS_ADDRTYPE_IPV4: try to resolve IPv4 only - * - LWIP_DNS_ADDRTYPE_IPV6: try to resolve IPv6 only - */ -err_t -dns_gethostbyname_addrtype(const char *hostname, ip_addr_t *addr, dns_found_callback found, - void *callback_arg, u8_t dns_addrtype) -{ - size_t hostnamelen; -#if LWIP_DNS_SUPPORT_MDNS_QUERIES - u8_t is_mdns; -#endif - /* not initialized or no valid server yet, or invalid addr pointer - * or invalid hostname or invalid hostname length */ - if ((addr == NULL) || - (!hostname) || (!hostname[0])) { - return ERR_ARG; - } -#if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_SRC_PORT) == 0) - if (dns_pcbs[0] == NULL) { - return ERR_ARG; - } -#endif - hostnamelen = strlen(hostname); - if (hostnamelen >= DNS_MAX_NAME_LENGTH) { - LWIP_DEBUGF(DNS_DEBUG, ("dns_gethostbyname: name too long to resolve")); - return ERR_ARG; - } - - -#if LWIP_HAVE_LOOPIF - if (strcmp(hostname, "localhost") == 0) { - ip_addr_set_loopback(LWIP_DNS_ADDRTYPE_IS_IPV6(dns_addrtype), addr); - return ERR_OK; - } -#endif /* LWIP_HAVE_LOOPIF */ - - /* host name already in octet notation? set ip addr and return ERR_OK */ - if (ipaddr_aton(hostname, addr)) { -#if LWIP_IPV4 && LWIP_IPV6 - if ((IP_IS_V6(addr) && (dns_addrtype != LWIP_DNS_ADDRTYPE_IPV4)) || - (IP_IS_V4(addr) && (dns_addrtype != LWIP_DNS_ADDRTYPE_IPV6))) -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - { - return ERR_OK; - } - } - /* already have this address cached? */ - if (dns_lookup(hostname, addr LWIP_DNS_ADDRTYPE_ARG(dns_addrtype)) == ERR_OK) { - return ERR_OK; - } -#if LWIP_IPV4 && LWIP_IPV6 - if ((dns_addrtype == LWIP_DNS_ADDRTYPE_IPV4_IPV6) || (dns_addrtype == LWIP_DNS_ADDRTYPE_IPV6_IPV4)) { - /* fallback to 2nd IP type and try again to lookup */ - u8_t fallback; - if (dns_addrtype == LWIP_DNS_ADDRTYPE_IPV4_IPV6) { - fallback = LWIP_DNS_ADDRTYPE_IPV6; - } else { - fallback = LWIP_DNS_ADDRTYPE_IPV4; - } - if (dns_lookup(hostname, addr LWIP_DNS_ADDRTYPE_ARG(fallback)) == ERR_OK) { - return ERR_OK; - } - } -#else /* LWIP_IPV4 && LWIP_IPV6 */ - LWIP_UNUSED_ARG(dns_addrtype); -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - -#if LWIP_DNS_SUPPORT_MDNS_QUERIES - if (strstr(hostname, ".local") == &hostname[hostnamelen] - 6) { - is_mdns = 1; - } else { - is_mdns = 0; - } - - if (!is_mdns) -#endif /* LWIP_DNS_SUPPORT_MDNS_QUERIES */ - { - /* prevent calling found callback if no server is set, return error instead */ - if (ip_addr_isany_val(dns_servers[0])) { - return ERR_VAL; - } - } - - /* queue query with specified callback */ - return dns_enqueue(hostname, hostnamelen, found, callback_arg LWIP_DNS_ADDRTYPE_ARG(dns_addrtype) - LWIP_DNS_ISMDNS_ARG(is_mdns)); -} - -#endif /* LWIP_DNS */ diff --git a/core/c/core/inet_chksum.c b/core/c/core/inet_chksum.c deleted file mode 100755 index 25255b9..0000000 --- a/core/c/core/inet_chksum.c +++ /dev/null @@ -1,608 +0,0 @@ -/** - * @file - * Internet checksum functions.\n - * - * These are some reference implementations of the checksum algorithm, with the - * aim of being simple, correct and fully portable. Checksumming is the - * first thing you would want to optimize for your platform. If you create - * your own version, link it in and in your cc.h put: - * - * \#define LWIP_CHKSUM your_checksum_routine - * - * Or you can select from the implementations below by defining - * LWIP_CHKSUM_ALGORITHM to 1, 2 or 3. - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#include "lwip/inet_chksum.h" -#include "lwip/def.h" -#include "lwip/ip_addr.h" - -#include - -#ifndef LWIP_CHKSUM -# define LWIP_CHKSUM lwip_standard_chksum -# ifndef LWIP_CHKSUM_ALGORITHM -# define LWIP_CHKSUM_ALGORITHM 2 -# endif -u16_t lwip_standard_chksum(const void *dataptr, int len); -#endif -/* If none set: */ -#ifndef LWIP_CHKSUM_ALGORITHM -# define LWIP_CHKSUM_ALGORITHM 0 -#endif - -#if (LWIP_CHKSUM_ALGORITHM == 1) /* Version #1 */ -/** - * lwip checksum - * - * @param dataptr points to start of data to be summed at any boundary - * @param len length of data to be summed - * @return host order (!) lwip checksum (non-inverted Internet sum) - * - * @note accumulator size limits summable length to 64k - * @note host endianess is irrelevant (p3 RFC1071) - */ -u16_t -lwip_standard_chksum(const void *dataptr, int len) -{ - u32_t acc; - u16_t src; - const u8_t *octetptr; - - acc = 0; - /* dataptr may be at odd or even addresses */ - octetptr = (const u8_t *)dataptr; - while (len > 1) { - /* declare first octet as most significant - thus assume network order, ignoring host order */ - src = (*octetptr) << 8; - octetptr++; - /* declare second octet as least significant */ - src |= (*octetptr); - octetptr++; - acc += src; - len -= 2; - } - if (len > 0) { - /* accumulate remaining octet */ - src = (*octetptr) << 8; - acc += src; - } - /* add deferred carry bits */ - acc = (acc >> 16) + (acc & 0x0000ffffUL); - if ((acc & 0xffff0000UL) != 0) { - acc = (acc >> 16) + (acc & 0x0000ffffUL); - } - /* This maybe a little confusing: reorder sum using lwip_htons() - instead of lwip_ntohs() since it has a little less call overhead. - The caller must invert bits for Internet sum ! */ - return lwip_htons((u16_t)acc); -} -#endif - -#if (LWIP_CHKSUM_ALGORITHM == 2) /* Alternative version #2 */ -/* - * Curt McDowell - * Broadcom Corp. - * csm@broadcom.com - * - * IP checksum two bytes at a time with support for - * unaligned buffer. - * Works for len up to and including 0x20000. - * by Curt McDowell, Broadcom Corp. 12/08/2005 - * - * @param dataptr points to start of data to be summed at any boundary - * @param len length of data to be summed - * @return host order (!) lwip checksum (non-inverted Internet sum) - */ -u16_t -lwip_standard_chksum(const void *dataptr, int len) -{ - const u8_t *pb = (const u8_t *)dataptr; - const u16_t *ps; - u16_t t = 0; - u32_t sum = 0; - int odd = ((mem_ptr_t)pb & 1); - - /* Get aligned to u16_t */ - if (odd && len > 0) { - ((u8_t *)&t)[1] = *pb++; - len--; - } - - /* Add the bulk of the data */ - ps = (const u16_t *)(const void *)pb; - while (len > 1) { - sum += *ps++; - len -= 2; - } - - /* Consume left-over byte, if any */ - if (len > 0) { - ((u8_t *)&t)[0] = *(const u8_t *)ps; - } - - /* Add end bytes */ - sum += t; - - /* Fold 32-bit sum to 16 bits - calling this twice is probably faster than if statements... */ - sum = FOLD_U32T(sum); - sum = FOLD_U32T(sum); - - /* Swap if alignment was odd */ - if (odd) { - sum = SWAP_BYTES_IN_WORD(sum); - } - - return (u16_t)sum; -} -#endif - -#if (LWIP_CHKSUM_ALGORITHM == 3) /* Alternative version #3 */ -/** - * An optimized checksum routine. Basically, it uses loop-unrolling on - * the checksum loop, treating the head and tail bytes specially, whereas - * the inner loop acts on 8 bytes at a time. - * - * @arg start of buffer to be checksummed. May be an odd byte address. - * @len number of bytes in the buffer to be checksummed. - * @return host order (!) lwip checksum (non-inverted Internet sum) - * - * by Curt McDowell, Broadcom Corp. December 8th, 2005 - */ -u16_t -lwip_standard_chksum(const void *dataptr, int len) -{ - const u8_t *pb = (const u8_t *)dataptr; - const u16_t *ps; - u16_t t = 0; - const u32_t *pl; - u32_t sum = 0, tmp; - /* starts at odd byte address? */ - int odd = ((mem_ptr_t)pb & 1); - - if (odd && len > 0) { - ((u8_t *)&t)[1] = *pb++; - len--; - } - - ps = (const u16_t *)(const void *)pb; - - if (((mem_ptr_t)ps & 3) && len > 1) { - sum += *ps++; - len -= 2; - } - - pl = (const u32_t *)(const void *)ps; - - while (len > 7) { - tmp = sum + *pl++; /* ping */ - if (tmp < sum) { - tmp++; /* add back carry */ - } - - sum = tmp + *pl++; /* pong */ - if (sum < tmp) { - sum++; /* add back carry */ - } - - len -= 8; - } - - /* make room in upper bits */ - sum = FOLD_U32T(sum); - - ps = (const u16_t *)pl; - - /* 16-bit aligned word remaining? */ - while (len > 1) { - sum += *ps++; - len -= 2; - } - - /* dangling tail byte remaining? */ - if (len > 0) { /* include odd byte */ - ((u8_t *)&t)[0] = *(const u8_t *)ps; - } - - sum += t; /* add end bytes */ - - /* Fold 32-bit sum to 16 bits - calling this twice is probably faster than if statements... */ - sum = FOLD_U32T(sum); - sum = FOLD_U32T(sum); - - if (odd) { - sum = SWAP_BYTES_IN_WORD(sum); - } - - return (u16_t)sum; -} -#endif - -/** Parts of the pseudo checksum which are common to IPv4 and IPv6 */ -static u16_t -inet_cksum_pseudo_base(struct pbuf *p, u8_t proto, u16_t proto_len, u32_t acc) -{ - struct pbuf *q; - int swapped = 0; - - /* iterate through all pbuf in chain */ - for (q = p; q != NULL; q = q->next) { - LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): checksumming pbuf %p (has next %p) \n", - (void *)q, (void *)q->next)); - acc += LWIP_CHKSUM(q->payload, q->len); - /*LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): unwrapped lwip_chksum()=%"X32_F" \n", acc));*/ - /* just executing this next line is probably faster that the if statement needed - to check whether we really need to execute it, and does no harm */ - acc = FOLD_U32T(acc); - if (q->len % 2 != 0) { - swapped = !swapped; - acc = SWAP_BYTES_IN_WORD(acc); - } - /*LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): wrapped lwip_chksum()=%"X32_F" \n", acc));*/ - } - - if (swapped) { - acc = SWAP_BYTES_IN_WORD(acc); - } - - acc += (u32_t)lwip_htons((u16_t)proto); - acc += (u32_t)lwip_htons(proto_len); - - /* Fold 32-bit sum to 16 bits - calling this twice is probably faster than if statements... */ - acc = FOLD_U32T(acc); - acc = FOLD_U32T(acc); - LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): pbuf chain lwip_chksum()=%"X32_F"\n", acc)); - return (u16_t)~(acc & 0xffffUL); -} - -#if LWIP_IPV4 -/* inet_chksum_pseudo: - * - * Calculates the IPv4 pseudo Internet checksum used by TCP and UDP for a pbuf chain. - * IP addresses are expected to be in network byte order. - * - * @param p chain of pbufs over that a checksum should be calculated (ip data part) - * @param src source ip address (used for checksum of pseudo header) - * @param dst destination ip address (used for checksum of pseudo header) - * @param proto ip protocol (used for checksum of pseudo header) - * @param proto_len length of the ip data part (used for checksum of pseudo header) - * @return checksum (as u16_t) to be saved directly in the protocol header - */ -u16_t -inet_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, - const ip4_addr_t *src, const ip4_addr_t *dest) -{ - u32_t acc; - u32_t addr; - - addr = ip4_addr_get_u32(src); - acc = (addr & 0xffffUL); - acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); - addr = ip4_addr_get_u32(dest); - acc = (u32_t)(acc + (addr & 0xffffUL)); - acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); - /* fold down to 16 bits */ - acc = FOLD_U32T(acc); - acc = FOLD_U32T(acc); - - return inet_cksum_pseudo_base(p, proto, proto_len, acc); -} -#endif /* LWIP_IPV4 */ - -#if LWIP_IPV6 -/** - * Calculates the checksum with IPv6 pseudo header used by TCP and UDP for a pbuf chain. - * IPv6 addresses are expected to be in network byte order. - * - * @param p chain of pbufs over that a checksum should be calculated (ip data part) - * @param proto ipv6 protocol/next header (used for checksum of pseudo header) - * @param proto_len length of the ipv6 payload (used for checksum of pseudo header) - * @param src source ipv6 address (used for checksum of pseudo header) - * @param dest destination ipv6 address (used for checksum of pseudo header) - * @return checksum (as u16_t) to be saved directly in the protocol header - */ -u16_t -ip6_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, - const ip6_addr_t *src, const ip6_addr_t *dest) -{ - u32_t acc = 0; - u32_t addr; - u8_t addr_part; - - for (addr_part = 0; addr_part < 4; addr_part++) { - addr = src->addr[addr_part]; - acc = (u32_t)(acc + (addr & 0xffffUL)); - acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); - addr = dest->addr[addr_part]; - acc = (u32_t)(acc + (addr & 0xffffUL)); - acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); - } - /* fold down to 16 bits */ - acc = FOLD_U32T(acc); - acc = FOLD_U32T(acc); - - return inet_cksum_pseudo_base(p, proto, proto_len, acc); -} -#endif /* LWIP_IPV6 */ - -/* ip_chksum_pseudo: - * - * Calculates the IPv4 or IPv6 pseudo Internet checksum used by TCP and UDP for a pbuf chain. - * IP addresses are expected to be in network byte order. - * - * @param p chain of pbufs over that a checksum should be calculated (ip data part) - * @param src source ip address (used for checksum of pseudo header) - * @param dst destination ip address (used for checksum of pseudo header) - * @param proto ip protocol (used for checksum of pseudo header) - * @param proto_len length of the ip data part (used for checksum of pseudo header) - * @return checksum (as u16_t) to be saved directly in the protocol header - */ -u16_t -ip_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, - const ip_addr_t *src, const ip_addr_t *dest) -{ -#if LWIP_IPV6 - if (IP_IS_V6(dest)) { - return ip6_chksum_pseudo(p, proto, proto_len, ip_2_ip6(src), ip_2_ip6(dest)); - } -#endif /* LWIP_IPV6 */ -#if LWIP_IPV4 && LWIP_IPV6 - else -#endif /* LWIP_IPV4 && LWIP_IPV6 */ -#if LWIP_IPV4 - { - return inet_chksum_pseudo(p, proto, proto_len, ip_2_ip4(src), ip_2_ip4(dest)); - } -#endif /* LWIP_IPV4 */ -} - -/** Parts of the pseudo checksum which are common to IPv4 and IPv6 */ -static u16_t -inet_cksum_pseudo_partial_base(struct pbuf *p, u8_t proto, u16_t proto_len, - u16_t chksum_len, u32_t acc) -{ - struct pbuf *q; - int swapped = 0; - u16_t chklen; - - /* iterate through all pbuf in chain */ - for (q = p; (q != NULL) && (chksum_len > 0); q = q->next) { - LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): checksumming pbuf %p (has next %p) \n", - (void *)q, (void *)q->next)); - chklen = q->len; - if (chklen > chksum_len) { - chklen = chksum_len; - } - acc += LWIP_CHKSUM(q->payload, chklen); - chksum_len = (u16_t)(chksum_len - chklen); - LWIP_ASSERT("delete me", chksum_len < 0x7fff); - /*LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): unwrapped lwip_chksum()=%"X32_F" \n", acc));*/ - /* fold the upper bit down */ - acc = FOLD_U32T(acc); - if (q->len % 2 != 0) { - swapped = !swapped; - acc = SWAP_BYTES_IN_WORD(acc); - } - /*LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): wrapped lwip_chksum()=%"X32_F" \n", acc));*/ - } - - if (swapped) { - acc = SWAP_BYTES_IN_WORD(acc); - } - - acc += (u32_t)lwip_htons((u16_t)proto); - acc += (u32_t)lwip_htons(proto_len); - - /* Fold 32-bit sum to 16 bits - calling this twice is probably faster than if statements... */ - acc = FOLD_U32T(acc); - acc = FOLD_U32T(acc); - LWIP_DEBUGF(INET_DEBUG, ("inet_chksum_pseudo(): pbuf chain lwip_chksum()=%"X32_F"\n", acc)); - return (u16_t)~(acc & 0xffffUL); -} - -#if LWIP_IPV4 -/* inet_chksum_pseudo_partial: - * - * Calculates the IPv4 pseudo Internet checksum used by TCP and UDP for a pbuf chain. - * IP addresses are expected to be in network byte order. - * - * @param p chain of pbufs over that a checksum should be calculated (ip data part) - * @param src source ip address (used for checksum of pseudo header) - * @param dst destination ip address (used for checksum of pseudo header) - * @param proto ip protocol (used for checksum of pseudo header) - * @param proto_len length of the ip data part (used for checksum of pseudo header) - * @return checksum (as u16_t) to be saved directly in the protocol header - */ -u16_t -inet_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, - u16_t chksum_len, const ip4_addr_t *src, const ip4_addr_t *dest) -{ - u32_t acc; - u32_t addr; - - addr = ip4_addr_get_u32(src); - acc = (addr & 0xffffUL); - acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); - addr = ip4_addr_get_u32(dest); - acc = (u32_t)(acc + (addr & 0xffffUL)); - acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); - /* fold down to 16 bits */ - acc = FOLD_U32T(acc); - acc = FOLD_U32T(acc); - - return inet_cksum_pseudo_partial_base(p, proto, proto_len, chksum_len, acc); -} -#endif /* LWIP_IPV4 */ - -#if LWIP_IPV6 -/** - * Calculates the checksum with IPv6 pseudo header used by TCP and UDP for a pbuf chain. - * IPv6 addresses are expected to be in network byte order. Will only compute for a - * portion of the payload. - * - * @param p chain of pbufs over that a checksum should be calculated (ip data part) - * @param proto ipv6 protocol/next header (used for checksum of pseudo header) - * @param proto_len length of the ipv6 payload (used for checksum of pseudo header) - * @param chksum_len number of payload bytes used to compute chksum - * @param src source ipv6 address (used for checksum of pseudo header) - * @param dest destination ipv6 address (used for checksum of pseudo header) - * @return checksum (as u16_t) to be saved directly in the protocol header - */ -u16_t -ip6_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, - u16_t chksum_len, const ip6_addr_t *src, const ip6_addr_t *dest) -{ - u32_t acc = 0; - u32_t addr; - u8_t addr_part; - - for (addr_part = 0; addr_part < 4; addr_part++) { - addr = src->addr[addr_part]; - acc = (u32_t)(acc + (addr & 0xffffUL)); - acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); - addr = dest->addr[addr_part]; - acc = (u32_t)(acc + (addr & 0xffffUL)); - acc = (u32_t)(acc + ((addr >> 16) & 0xffffUL)); - } - /* fold down to 16 bits */ - acc = FOLD_U32T(acc); - acc = FOLD_U32T(acc); - - return inet_cksum_pseudo_partial_base(p, proto, proto_len, chksum_len, acc); -} -#endif /* LWIP_IPV6 */ - -/* ip_chksum_pseudo_partial: - * - * Calculates the IPv4 or IPv6 pseudo Internet checksum used by TCP and UDP for a pbuf chain. - * - * @param p chain of pbufs over that a checksum should be calculated (ip data part) - * @param src source ip address (used for checksum of pseudo header) - * @param dst destination ip address (used for checksum of pseudo header) - * @param proto ip protocol (used for checksum of pseudo header) - * @param proto_len length of the ip data part (used for checksum of pseudo header) - * @return checksum (as u16_t) to be saved directly in the protocol header - */ -u16_t -ip_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, - u16_t chksum_len, const ip_addr_t *src, const ip_addr_t *dest) -{ -#if LWIP_IPV6 - if (IP_IS_V6(dest)) { - return ip6_chksum_pseudo_partial(p, proto, proto_len, chksum_len, ip_2_ip6(src), ip_2_ip6(dest)); - } -#endif /* LWIP_IPV6 */ -#if LWIP_IPV4 && LWIP_IPV6 - else -#endif /* LWIP_IPV4 && LWIP_IPV6 */ -#if LWIP_IPV4 - { - return inet_chksum_pseudo_partial(p, proto, proto_len, chksum_len, ip_2_ip4(src), ip_2_ip4(dest)); - } -#endif /* LWIP_IPV4 */ -} - -/* inet_chksum: - * - * Calculates the Internet checksum over a portion of memory. Used primarily for IP - * and ICMP. - * - * @param dataptr start of the buffer to calculate the checksum (no alignment needed) - * @param len length of the buffer to calculate the checksum - * @return checksum (as u16_t) to be saved directly in the protocol header - */ - -u16_t -inet_chksum(const void *dataptr, u16_t len) -{ - return (u16_t)~(unsigned int)LWIP_CHKSUM(dataptr, len); -} - -/** - * Calculate a checksum over a chain of pbufs (without pseudo-header, much like - * inet_chksum only pbufs are used). - * - * @param p pbuf chain over that the checksum should be calculated - * @return checksum (as u16_t) to be saved directly in the protocol header - */ -u16_t -inet_chksum_pbuf(struct pbuf *p) -{ - u32_t acc; - struct pbuf *q; - int swapped = 0; - - acc = 0; - for (q = p; q != NULL; q = q->next) { - acc += LWIP_CHKSUM(q->payload, q->len); - acc = FOLD_U32T(acc); - if (q->len % 2 != 0) { - swapped = !swapped; - acc = SWAP_BYTES_IN_WORD(acc); - } - } - - if (swapped) { - acc = SWAP_BYTES_IN_WORD(acc); - } - return (u16_t)~(acc & 0xffffUL); -} - -/* These are some implementations for LWIP_CHKSUM_COPY, which copies data - * like MEMCPY but generates a checksum at the same time. Since this is a - * performance-sensitive function, you might want to create your own version - * in assembly targeted at your hardware by defining it in lwipopts.h: - * #define LWIP_CHKSUM_COPY(dst, src, len) your_chksum_copy(dst, src, len) - */ - -#if (LWIP_CHKSUM_COPY_ALGORITHM == 1) /* Version #1 */ -/** Safe but slow: first call MEMCPY, then call LWIP_CHKSUM. - * For architectures with big caches, data might still be in cache when - * generating the checksum after copying. - */ -u16_t -lwip_chksum_copy(void *dst, const void *src, u16_t len) -{ - MEMCPY(dst, src, len); - return LWIP_CHKSUM(dst, len); -} -#endif /* (LWIP_CHKSUM_COPY_ALGORITHM == 1) */ diff --git a/core/c/core/init.c b/core/c/core/init.c deleted file mode 100755 index b688536..0000000 --- a/core/c/core/init.c +++ /dev/null @@ -1,380 +0,0 @@ -/** - * @file - * Modules initialization - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - */ - -#include "lwip/opt.h" - -#include "lwip/init.h" -#include "lwip/stats.h" -#include "lwip/sys.h" -#include "lwip/mem.h" -#include "lwip/memp.h" -#include "lwip/pbuf.h" -#include "lwip/netif.h" -#include "lwip/sockets.h" -#include "lwip/ip.h" -#include "lwip/raw.h" -#include "lwip/udp.h" -#include "lwip/priv/tcp_priv.h" -#include "lwip/igmp.h" -#include "lwip/dns.h" -#include "lwip/timeouts.h" -#include "lwip/etharp.h" -#include "lwip/ip6.h" -#include "lwip/nd6.h" -#include "lwip/mld6.h" -#include "lwip/api.h" - -#include "netif/ppp/ppp_opts.h" -#include "netif/ppp/ppp_impl.h" - -#ifndef LWIP_SKIP_PACKING_CHECK - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct packed_struct_test { - PACK_STRUCT_FLD_8(u8_t dummy1); - PACK_STRUCT_FIELD(u32_t dummy2); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif -#define PACKED_STRUCT_TEST_EXPECTED_SIZE 5 - -#endif - -/* Compile-time sanity checks for configuration errors. - * These can be done independently of LWIP_DEBUG, without penalty. - */ -#ifndef BYTE_ORDER -#error "BYTE_ORDER is not defined, you have to define it in your cc.h" -#endif -#if (!IP_SOF_BROADCAST && IP_SOF_BROADCAST_RECV) -#error "If you want to use broadcast filter per pcb on recv operations, you have to define IP_SOF_BROADCAST=1 in your lwipopts.h" -#endif -#if (!LWIP_UDP && LWIP_UDPLITE) -#error "If you want to use UDP Lite, you have to define LWIP_UDP=1 in your lwipopts.h" -#endif -#if (!LWIP_UDP && LWIP_DHCP) -#error "If you want to use DHCP, you have to define LWIP_UDP=1 in your lwipopts.h" -#endif -#if (!LWIP_UDP && !LWIP_RAW && LWIP_MULTICAST_TX_OPTIONS) -#error "If you want to use LWIP_MULTICAST_TX_OPTIONS, you have to define LWIP_UDP=1 and/or LWIP_RAW=1 in your lwipopts.h" -#endif -#if (!LWIP_UDP && LWIP_DNS) -#error "If you want to use DNS, you have to define LWIP_UDP=1 in your lwipopts.h" -#endif -#if !MEMP_MEM_MALLOC /* MEMP_NUM_* checks are disabled when not using the pool allocator */ -#if (LWIP_ARP && ARP_QUEUEING && (MEMP_NUM_ARP_QUEUE<=0)) -#error "If you want to use ARP Queueing, you have to define MEMP_NUM_ARP_QUEUE>=1 in your lwipopts.h" -#endif -#if (LWIP_RAW && (MEMP_NUM_RAW_PCB<=0)) -#error "If you want to use RAW, you have to define MEMP_NUM_RAW_PCB>=1 in your lwipopts.h" -#endif -#if (LWIP_UDP && (MEMP_NUM_UDP_PCB<=0)) -#error "If you want to use UDP, you have to define MEMP_NUM_UDP_PCB>=1 in your lwipopts.h" -#endif -#if (LWIP_TCP && (MEMP_NUM_TCP_PCB<=0)) -#error "If you want to use TCP, you have to define MEMP_NUM_TCP_PCB>=1 in your lwipopts.h" -#endif -#if (LWIP_IGMP && (MEMP_NUM_IGMP_GROUP<=1)) -#error "If you want to use IGMP, you have to define MEMP_NUM_IGMP_GROUP>1 in your lwipopts.h" -#endif -#if (LWIP_IGMP && !LWIP_MULTICAST_TX_OPTIONS) -#error "If you want to use IGMP, you have to define LWIP_MULTICAST_TX_OPTIONS==1 in your lwipopts.h" -#endif -#if (LWIP_IGMP && !LWIP_IPV4) -#error "IGMP needs LWIP_IPV4 enabled in your lwipopts.h" -#endif -#if ((LWIP_NETCONN || LWIP_SOCKET) && (MEMP_NUM_TCPIP_MSG_API<=0)) -#error "If you want to use Sequential API, you have to define MEMP_NUM_TCPIP_MSG_API>=1 in your lwipopts.h" -#endif -/* There must be sufficient timeouts, taking into account requirements of the subsystems. */ -#if LWIP_TIMERS && (MEMP_NUM_SYS_TIMEOUT < LWIP_NUM_SYS_TIMEOUT_INTERNAL) -#error "MEMP_NUM_SYS_TIMEOUT is too low to accomodate all required timeouts" -#endif -#if (IP_REASSEMBLY && (MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS)) -#error "MEMP_NUM_REASSDATA > IP_REASS_MAX_PBUFS doesn't make sense since each struct ip_reassdata must hold 2 pbufs at least!" -#endif -#endif /* !MEMP_MEM_MALLOC */ -#if LWIP_WND_SCALE -#if (LWIP_TCP && (TCP_WND > 0xffffffff)) -#error "If you want to use TCP, TCP_WND must fit in an u32_t, so, you have to reduce it in your lwipopts.h" -#endif -#if (LWIP_TCP && (TCP_RCV_SCALE > 14)) -#error "The maximum valid window scale value is 14!" -#endif -#if (LWIP_TCP && (TCP_WND > (0xFFFFU << TCP_RCV_SCALE))) -#error "TCP_WND is bigger than the configured LWIP_WND_SCALE allows!" -#endif -#if (LWIP_TCP && ((TCP_WND >> TCP_RCV_SCALE) == 0)) -#error "TCP_WND is too small for the configured LWIP_WND_SCALE (results in zero window)!" -#endif -#else /* LWIP_WND_SCALE */ -#if (LWIP_TCP && (TCP_WND > 0xffff)) -#error "If you want to use TCP, TCP_WND must fit in an u16_t, so, you have to reduce it in your lwipopts.h (or enable window scaling)" -#endif -#endif /* LWIP_WND_SCALE */ -#if (LWIP_TCP && (TCP_SND_QUEUELEN > 0xffff)) -#error "If you want to use TCP, TCP_SND_QUEUELEN must fit in an u16_t, so, you have to reduce it in your lwipopts.h" -#endif -#if (LWIP_TCP && (TCP_SND_QUEUELEN < 2)) -#error "TCP_SND_QUEUELEN must be at least 2 for no-copy TCP writes to work" -#endif -#if (LWIP_TCP && ((TCP_MAXRTX > 12) || (TCP_SYNMAXRTX > 12))) -#error "If you want to use TCP, TCP_MAXRTX and TCP_SYNMAXRTX must less or equal to 12 (due to tcp_backoff table), so, you have to reduce them in your lwipopts.h" -#endif -#if (LWIP_TCP && TCP_LISTEN_BACKLOG && ((TCP_DEFAULT_LISTEN_BACKLOG < 0) || (TCP_DEFAULT_LISTEN_BACKLOG > 0xff))) -#error "If you want to use TCP backlog, TCP_DEFAULT_LISTEN_BACKLOG must fit into an u8_t" -#endif -#if (LWIP_TCP && LWIP_TCP_SACK_OUT && !TCP_QUEUE_OOSEQ) -#error "To use LWIP_TCP_SACK_OUT, TCP_QUEUE_OOSEQ needs to be enabled" -#endif -#if (LWIP_TCP && LWIP_TCP_SACK_OUT && (LWIP_TCP_MAX_SACK_NUM < 1)) -#error "LWIP_TCP_MAX_SACK_NUM must be greater than 0" -#endif -#if (LWIP_NETIF_API && (NO_SYS==1)) -#error "If you want to use NETIF API, you have to define NO_SYS=0 in your lwipopts.h" -#endif -#if ((LWIP_SOCKET || LWIP_NETCONN) && (NO_SYS==1)) -#error "If you want to use Sequential API, you have to define NO_SYS=0 in your lwipopts.h" -#endif -#if (LWIP_PPP_API && (NO_SYS==1)) -#error "If you want to use PPP API, you have to define NO_SYS=0 in your lwipopts.h" -#endif -#if (LWIP_PPP_API && (PPP_SUPPORT==0)) -#error "If you want to use PPP API, you have to enable PPP_SUPPORT in your lwipopts.h" -#endif -#if (((!LWIP_DHCP) || (!LWIP_AUTOIP)) && LWIP_DHCP_AUTOIP_COOP) -#error "If you want to use DHCP/AUTOIP cooperation mode, you have to define LWIP_DHCP=1 and LWIP_AUTOIP=1 in your lwipopts.h" -#endif -#if (((!LWIP_DHCP) || (!LWIP_ARP)) && DHCP_DOES_ARP_CHECK) -#error "If you want to use DHCP ARP checking, you have to define LWIP_DHCP=1 and LWIP_ARP=1 in your lwipopts.h" -#endif -#if (!LWIP_ARP && LWIP_AUTOIP) -#error "If you want to use AUTOIP, you have to define LWIP_ARP=1 in your lwipopts.h" -#endif -#if (LWIP_TCP && ((LWIP_EVENT_API && LWIP_CALLBACK_API) || (!LWIP_EVENT_API && !LWIP_CALLBACK_API))) -#error "One and exactly one of LWIP_EVENT_API and LWIP_CALLBACK_API has to be enabled in your lwipopts.h" -#endif -#if (LWIP_ALTCP && LWIP_EVENT_API) -#error "The application layered tcp API does not work with LWIP_EVENT_API" -#endif -#if (MEM_LIBC_MALLOC && MEM_USE_POOLS) -#error "MEM_LIBC_MALLOC and MEM_USE_POOLS may not both be simultaneously enabled in your lwipopts.h" -#endif -#if (MEM_USE_POOLS && !MEMP_USE_CUSTOM_POOLS) -#error "MEM_USE_POOLS requires custom pools (MEMP_USE_CUSTOM_POOLS) to be enabled in your lwipopts.h" -#endif -#if (PBUF_POOL_BUFSIZE <= MEM_ALIGNMENT) -#error "PBUF_POOL_BUFSIZE must be greater than MEM_ALIGNMENT or the offset may take the full first pbuf" -#endif -#if (DNS_LOCAL_HOSTLIST && !DNS_LOCAL_HOSTLIST_IS_DYNAMIC && !(defined(DNS_LOCAL_HOSTLIST_INIT))) -#error "you have to define define DNS_LOCAL_HOSTLIST_INIT {{'host1', 0x123}, {'host2', 0x234}} to initialize DNS_LOCAL_HOSTLIST" -#endif -#if PPP_SUPPORT && !PPPOS_SUPPORT && !PPPOE_SUPPORT && !PPPOL2TP_SUPPORT -#error "PPP_SUPPORT needs at least one of PPPOS_SUPPORT, PPPOE_SUPPORT or PPPOL2TP_SUPPORT turned on" -#endif -#if PPP_SUPPORT && !PPP_IPV4_SUPPORT && !PPP_IPV6_SUPPORT -#error "PPP_SUPPORT needs PPP_IPV4_SUPPORT and/or PPP_IPV6_SUPPORT turned on" -#endif -#if PPP_SUPPORT && PPP_IPV4_SUPPORT && !LWIP_IPV4 -#error "PPP_IPV4_SUPPORT needs LWIP_IPV4 turned on" -#endif -#if PPP_SUPPORT && PPP_IPV6_SUPPORT && !LWIP_IPV6 -#error "PPP_IPV6_SUPPORT needs LWIP_IPV6 turned on" -#endif -#if !LWIP_ETHERNET && (LWIP_ARP || PPPOE_SUPPORT) -#error "LWIP_ETHERNET needs to be turned on for LWIP_ARP or PPPOE_SUPPORT" -#endif -#if LWIP_TCPIP_CORE_LOCKING_INPUT && !LWIP_TCPIP_CORE_LOCKING -#error "When using LWIP_TCPIP_CORE_LOCKING_INPUT, LWIP_TCPIP_CORE_LOCKING must be enabled, too" -#endif -#if LWIP_TCP && LWIP_NETIF_TX_SINGLE_PBUF && !TCP_OVERSIZE -#error "LWIP_NETIF_TX_SINGLE_PBUF needs TCP_OVERSIZE enabled to create single-pbuf TCP packets" -#endif -#if LWIP_NETCONN && LWIP_TCP -#if NETCONN_COPY != TCP_WRITE_FLAG_COPY -#error "NETCONN_COPY != TCP_WRITE_FLAG_COPY" -#endif -#if NETCONN_MORE != TCP_WRITE_FLAG_MORE -#error "NETCONN_MORE != TCP_WRITE_FLAG_MORE" -#endif -#endif /* LWIP_NETCONN && LWIP_TCP */ -#if LWIP_SOCKET -#endif /* LWIP_SOCKET */ - - -/* Compile-time checks for deprecated options. - */ -#ifdef MEMP_NUM_TCPIP_MSG -#error "MEMP_NUM_TCPIP_MSG option is deprecated. Remove it from your lwipopts.h." -#endif -#ifdef TCP_REXMIT_DEBUG -#error "TCP_REXMIT_DEBUG option is deprecated. Remove it from your lwipopts.h." -#endif -#ifdef RAW_STATS -#error "RAW_STATS option is deprecated. Remove it from your lwipopts.h." -#endif -#ifdef ETHARP_QUEUE_FIRST -#error "ETHARP_QUEUE_FIRST option is deprecated. Remove it from your lwipopts.h." -#endif -#ifdef ETHARP_ALWAYS_INSERT -#error "ETHARP_ALWAYS_INSERT option is deprecated. Remove it from your lwipopts.h." -#endif -#if !NO_SYS && LWIP_TCPIP_CORE_LOCKING && LWIP_COMPAT_MUTEX && !defined(LWIP_COMPAT_MUTEX_ALLOWED) -#error "LWIP_COMPAT_MUTEX cannot prevent priority inversion. It is recommended to implement priority-aware mutexes. (Define LWIP_COMPAT_MUTEX_ALLOWED to disable this error.)" -#endif - -#ifndef LWIP_DISABLE_TCP_SANITY_CHECKS -#define LWIP_DISABLE_TCP_SANITY_CHECKS 0 -#endif -#ifndef LWIP_DISABLE_MEMP_SANITY_CHECKS -#define LWIP_DISABLE_MEMP_SANITY_CHECKS 0 -#endif - -/* MEMP sanity checks */ -#if MEMP_MEM_MALLOC -#if !LWIP_DISABLE_MEMP_SANITY_CHECKS -#if LWIP_NETCONN || LWIP_SOCKET -#if !MEMP_NUM_NETCONN && LWIP_SOCKET -#error "lwip_sanity_check: WARNING: MEMP_NUM_NETCONN cannot be 0 when using sockets!" -#endif -#else /* MEMP_MEM_MALLOC */ -#if MEMP_NUM_NETCONN > (MEMP_NUM_TCP_PCB+MEMP_NUM_TCP_PCB_LISTEN+MEMP_NUM_UDP_PCB+MEMP_NUM_RAW_PCB) -#error "lwip_sanity_check: WARNING: MEMP_NUM_NETCONN should be less than the sum of MEMP_NUM_{TCP,RAW,UDP}_PCB+MEMP_NUM_TCP_PCB_LISTEN. If you know what you are doing, define LWIP_DISABLE_MEMP_SANITY_CHECKS to 1 to disable this error." -#endif -#endif /* LWIP_NETCONN || LWIP_SOCKET */ -#endif /* !LWIP_DISABLE_MEMP_SANITY_CHECKS */ -#if MEM_USE_POOLS -#error "MEMP_MEM_MALLOC and MEM_USE_POOLS cannot be enabled at the same time" -#endif -#ifdef LWIP_HOOK_MEMP_AVAILABLE -#error "LWIP_HOOK_MEMP_AVAILABLE doesn't make sense with MEMP_MEM_MALLOC" -#endif -#endif /* MEMP_MEM_MALLOC */ - -/* TCP sanity checks */ -#if !LWIP_DISABLE_TCP_SANITY_CHECKS -#if LWIP_TCP -#if !MEMP_MEM_MALLOC && (MEMP_NUM_TCP_SEG < TCP_SND_QUEUELEN) -#error "lwip_sanity_check: WARNING: MEMP_NUM_TCP_SEG should be at least as big as TCP_SND_QUEUELEN. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." -#endif -#if TCP_SND_BUF < (2 * TCP_MSS) -#error "lwip_sanity_check: WARNING: TCP_SND_BUF must be at least as much as (2 * TCP_MSS) for things to work smoothly. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." -#endif -#if TCP_SND_QUEUELEN < (2 * (TCP_SND_BUF / TCP_MSS)) -#error "lwip_sanity_check: WARNING: TCP_SND_QUEUELEN must be at least as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." -#endif -#if TCP_SNDLOWAT >= TCP_SND_BUF -#error "lwip_sanity_check: WARNING: TCP_SNDLOWAT must be less than TCP_SND_BUF. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." -#endif -#if TCP_SNDLOWAT >= (0xFFFF - (4 * TCP_MSS)) -#error "lwip_sanity_check: WARNING: TCP_SNDLOWAT must at least be 4*MSS below u16_t overflow!" -#endif -#if TCP_SNDQUEUELOWAT >= TCP_SND_QUEUELEN -#error "lwip_sanity_check: WARNING: TCP_SNDQUEUELOWAT must be less than TCP_SND_QUEUELEN. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." -#endif -#if !MEMP_MEM_MALLOC && PBUF_POOL_SIZE && (PBUF_POOL_BUFSIZE <= (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)) -#error "lwip_sanity_check: WARNING: PBUF_POOL_BUFSIZE does not provide enough space for protocol headers. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." -#endif -#if !MEMP_MEM_MALLOC && PBUF_POOL_SIZE && (TCP_WND > (PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN)))) -#error "lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - protocol headers). If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." -#endif -#if TCP_WND < TCP_MSS -#error "lwip_sanity_check: WARNING: TCP_WND is smaller than MSS. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error." -#endif -#endif /* LWIP_TCP */ -#endif /* !LWIP_DISABLE_TCP_SANITY_CHECKS */ - -/** - * @ingroup lwip_nosys - * Initialize all modules. - * Use this in NO_SYS mode. Use tcpip_init() otherwise. - */ -void -lwip_init(void) -{ -#ifndef LWIP_SKIP_CONST_CHECK - int a = 0; - LWIP_UNUSED_ARG(a); - LWIP_ASSERT("LWIP_CONST_CAST not implemented correctly. Check your lwIP port.", LWIP_CONST_CAST(void *, &a) == &a); -#endif -#ifndef LWIP_SKIP_PACKING_CHECK - LWIP_ASSERT("Struct packing not implemented correctly. Check your lwIP port.", sizeof(struct packed_struct_test) == PACKED_STRUCT_TEST_EXPECTED_SIZE); -#endif - - /* Modules initialization */ - stats_init(); -#if !NO_SYS - sys_init(); -#endif /* !NO_SYS */ - mem_init(); - memp_init(); - pbuf_init(); - netif_init(); -#if LWIP_IPV4 - ip_init(); -#if LWIP_ARP - etharp_init(); -#endif /* LWIP_ARP */ -#endif /* LWIP_IPV4 */ -#if LWIP_RAW - raw_init(); -#endif /* LWIP_RAW */ -#if LWIP_UDP - udp_init(); -#endif /* LWIP_UDP */ -#if LWIP_TCP - tcp_init(); -#endif /* LWIP_TCP */ -#if LWIP_IGMP - igmp_init(); -#endif /* LWIP_IGMP */ -#if LWIP_DNS - dns_init(); -#endif /* LWIP_DNS */ -#if PPP_SUPPORT - ppp_init(); -#endif - -#if LWIP_TIMERS - sys_timeouts_init(); -#endif /* LWIP_TIMERS */ -} diff --git a/core/c/core/ip.c b/core/c/core/ip.c deleted file mode 100755 index d611315..0000000 --- a/core/c/core/ip.c +++ /dev/null @@ -1,167 +0,0 @@ -/** - * @file - * Common IPv4 and IPv6 code - * - * @defgroup ip IP - * @ingroup callbackstyle_api - * - * @defgroup ip4 IPv4 - * @ingroup ip - * - * @defgroup ip6 IPv6 - * @ingroup ip - * - * @defgroup ipaddr IP address handling - * @ingroup infrastructure - * - * @defgroup ip4addr IPv4 only - * @ingroup ipaddr - * - * @defgroup ip6addr IPv6 only - * @ingroup ipaddr - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV4 || LWIP_IPV6 - -#include "lwip/ip_addr.h" -#include "lwip/ip.h" - -/** Global data for both IPv4 and IPv6 */ -struct ip_globals ip_data; - -#if LWIP_IPV4 && LWIP_IPV6 - -const ip_addr_t ip_addr_any_type = IPADDR_ANY_TYPE_INIT; - -/** - * @ingroup ipaddr - * Convert numeric IP address (both versions) into ASCII representation. - * returns ptr to static buffer; not reentrant! - * - * @param addr ip address in network order to convert - * @return pointer to a global static (!) buffer that holds the ASCII - * representation of addr - */ -char *ipaddr_ntoa(const ip_addr_t *addr) -{ - if (addr == NULL) { - return NULL; - } - if (IP_IS_V6(addr)) { - return ip6addr_ntoa(ip_2_ip6(addr)); - } else { - return ip4addr_ntoa(ip_2_ip4(addr)); - } -} - -/** - * @ingroup ipaddr - * Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used. - * - * @param addr ip address in network order to convert - * @param buf target buffer where the string is stored - * @param buflen length of buf - * @return either pointer to buf which now holds the ASCII - * representation of addr or NULL if buf was too small - */ -char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen) -{ - if (addr == NULL) { - return NULL; - } - if (IP_IS_V6(addr)) { - return ip6addr_ntoa_r(ip_2_ip6(addr), buf, buflen); - } else { - return ip4addr_ntoa_r(ip_2_ip4(addr), buf, buflen); - } -} - -/** - * @ingroup ipaddr - * Convert IP address string (both versions) to numeric. - * The version is auto-detected from the string. - * - * @param cp IP address string to convert - * @param addr conversion result is stored here - * @return 1 on success, 0 on error - */ -int -ipaddr_aton(const char *cp, ip_addr_t *addr) -{ - if (cp != NULL) { - const char *c; - for (c = cp; *c != 0; c++) { - if (*c == ':') { - /* contains a colon: IPv6 address */ - if (addr) { - IP_SET_TYPE_VAL(*addr, IPADDR_TYPE_V6); - } - return ip6addr_aton(cp, ip_2_ip6(addr)); - } else if (*c == '.') { - /* contains a dot: IPv4 address */ - break; - } - } - /* call ip4addr_aton as fallback or if IPv4 was found */ - if (addr) { - IP_SET_TYPE_VAL(*addr, IPADDR_TYPE_V4); - } - return ip4addr_aton(cp, ip_2_ip4(addr)); - } - return 0; -} - -/** - * @ingroup lwip_nosys - * If both IP versions are enabled, this function can dispatch packets to the correct one. - * Don't call directly, pass to netif_add() and call netif->input(). - */ -err_t -ip_input(struct pbuf *p, struct netif *inp) -{ - if (p != NULL) { - if (IP_HDR_GET_VERSION(p->payload) == 6) { - return ip6_input(p, inp); - } - return ip4_input(p, inp); - } - return ERR_VAL; -} - -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - -#endif /* LWIP_IPV4 || LWIP_IPV6 */ diff --git a/core/c/core/ipv4/autoip.c b/core/c/core/ipv4/autoip.c deleted file mode 100755 index a454504..0000000 --- a/core/c/core/ipv4/autoip.c +++ /dev/null @@ -1,527 +0,0 @@ -/** - * @file - * AutoIP Automatic LinkLocal IP Configuration - * - * This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform - * with RFC 3927. - * - * @defgroup autoip AUTOIP - * @ingroup ip4 - * AUTOIP related functions - * USAGE: - * - * define @ref LWIP_AUTOIP 1 in your lwipopts.h - * Options: - * AUTOIP_TMR_INTERVAL msecs, - * I recommend a value of 100. The value must divide 1000 with a remainder almost 0. - * Possible values are 1000, 500, 333, 250, 200, 166, 142, 125, 111, 100 .... - * - * Without DHCP: - * - Call autoip_start() after netif_add(). - * - * With DHCP: - * - define @ref LWIP_DHCP_AUTOIP_COOP 1 in your lwipopts.h. - * - Configure your DHCP Client. - * - * @see netifapi_autoip - */ - -/* - * - * Copyright (c) 2007 Dominik Spies - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * Author: Dominik Spies - */ - -#include "lwip/opt.h" - -#if LWIP_IPV4 && LWIP_AUTOIP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/mem.h" -/* #include "lwip/udp.h" */ -#include "lwip/ip_addr.h" -#include "lwip/netif.h" -#include "lwip/autoip.h" -#include "lwip/etharp.h" -#include "lwip/prot/autoip.h" - -#include - -/** Pseudo random macro based on netif informations. - * You could use "rand()" from the C Library if you define LWIP_AUTOIP_RAND in lwipopts.h */ -#ifndef LWIP_AUTOIP_RAND -#define LWIP_AUTOIP_RAND(netif) ( (((u32_t)((netif->hwaddr[5]) & 0xff) << 24) | \ - ((u32_t)((netif->hwaddr[3]) & 0xff) << 16) | \ - ((u32_t)((netif->hwaddr[2]) & 0xff) << 8) | \ - ((u32_t)((netif->hwaddr[4]) & 0xff))) + \ - (netif_autoip_data(netif)? netif_autoip_data(netif)->tried_llipaddr : 0)) -#endif /* LWIP_AUTOIP_RAND */ - -/** - * Macro that generates the initial IP address to be tried by AUTOIP. - * If you want to override this, define it to something else in lwipopts.h. - */ -#ifndef LWIP_AUTOIP_CREATE_SEED_ADDR -#define LWIP_AUTOIP_CREATE_SEED_ADDR(netif) \ - lwip_htonl(AUTOIP_RANGE_START + ((u32_t)(((u8_t)(netif->hwaddr[4])) | \ - ((u32_t)((u8_t)(netif->hwaddr[5]))) << 8))) -#endif /* LWIP_AUTOIP_CREATE_SEED_ADDR */ - -/* static functions */ -static err_t autoip_arp_announce(struct netif *netif); -static void autoip_start_probing(struct netif *netif); - -/** - * @ingroup autoip - * Set a statically allocated struct autoip to work with. - * Using this prevents autoip_start to allocate it using mem_malloc. - * - * @param netif the netif for which to set the struct autoip - * @param autoip (uninitialised) autoip struct allocated by the application - */ -void -autoip_set_struct(struct netif *netif, struct autoip *autoip) -{ - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ASSERT("netif != NULL", netif != NULL); - LWIP_ASSERT("autoip != NULL", autoip != NULL); - LWIP_ASSERT("netif already has a struct autoip set", - netif_autoip_data(netif) == NULL); - - /* clear data structure */ - memset(autoip, 0, sizeof(struct autoip)); - /* autoip->state = AUTOIP_STATE_OFF; */ - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP, autoip); -} - -/** Restart AutoIP client and check the next address (conflict detected) - * - * @param netif The netif under AutoIP control - */ -static void -autoip_restart(struct netif *netif) -{ - struct autoip *autoip = netif_autoip_data(netif); - autoip->tried_llipaddr++; - autoip_start(netif); -} - -/** - * Handle a IP address conflict after an ARP conflict detection - */ -static void -autoip_handle_arp_conflict(struct netif *netif) -{ - struct autoip *autoip = netif_autoip_data(netif); - - /* RFC3927, 2.5 "Conflict Detection and Defense" allows two options where - a) means retreat on the first conflict and - b) allows to keep an already configured address when having only one - conflict in 10 seconds - We use option b) since it helps to improve the chance that one of the two - conflicting hosts may be able to retain its address. */ - - if (autoip->lastconflict > 0) { - /* retreat, there was a conflicting ARP in the last DEFEND_INTERVAL seconds */ - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, - ("autoip_handle_arp_conflict(): we are defending, but in DEFEND_INTERVAL, retreating\n")); - - /* Active TCP sessions are aborted when removing the ip addresss */ - autoip_restart(netif); - } else { - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, - ("autoip_handle_arp_conflict(): we are defend, send ARP Announce\n")); - autoip_arp_announce(netif); - autoip->lastconflict = DEFEND_INTERVAL * AUTOIP_TICKS_PER_SECOND; - } -} - -/** - * Create an IP-Address out of range 169.254.1.0 to 169.254.254.255 - * - * @param netif network interface on which create the IP-Address - * @param ipaddr ip address to initialize - */ -static void -autoip_create_addr(struct netif *netif, ip4_addr_t *ipaddr) -{ - struct autoip *autoip = netif_autoip_data(netif); - - /* Here we create an IP-Address out of range 169.254.1.0 to 169.254.254.255 - * compliant to RFC 3927 Section 2.1 - * We have 254 * 256 possibilities */ - - u32_t addr = lwip_ntohl(LWIP_AUTOIP_CREATE_SEED_ADDR(netif)); - addr += autoip->tried_llipaddr; - addr = AUTOIP_NET | (addr & 0xffff); - /* Now, 169.254.0.0 <= addr <= 169.254.255.255 */ - - if (addr < AUTOIP_RANGE_START) { - addr += AUTOIP_RANGE_END - AUTOIP_RANGE_START + 1; - } - if (addr > AUTOIP_RANGE_END) { - addr -= AUTOIP_RANGE_END - AUTOIP_RANGE_START + 1; - } - LWIP_ASSERT("AUTOIP address not in range", (addr >= AUTOIP_RANGE_START) && - (addr <= AUTOIP_RANGE_END)); - ip4_addr_set_u32(ipaddr, lwip_htonl(addr)); - - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, - ("autoip_create_addr(): tried_llipaddr=%"U16_F", %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - (u16_t)(autoip->tried_llipaddr), ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), - ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr))); -} - -/** - * Sends an ARP probe from a network interface - * - * @param netif network interface used to send the probe - */ -static err_t -autoip_arp_probe(struct netif *netif) -{ - struct autoip *autoip = netif_autoip_data(netif); - /* this works because netif->ip_addr is ANY */ - return etharp_request(netif, &autoip->llipaddr); -} - -/** - * Sends an ARP announce from a network interface - * - * @param netif network interface used to send the announce - */ -static err_t -autoip_arp_announce(struct netif *netif) -{ - return etharp_gratuitous(netif); -} - -/** - * Configure interface for use with current LL IP-Address - * - * @param netif network interface to configure with current LL IP-Address - */ -static err_t -autoip_bind(struct netif *netif) -{ - struct autoip *autoip = netif_autoip_data(netif); - ip4_addr_t sn_mask, gw_addr; - - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, - ("autoip_bind(netif=%p) %c%c%"U16_F" %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num, - ip4_addr1_16(&autoip->llipaddr), ip4_addr2_16(&autoip->llipaddr), - ip4_addr3_16(&autoip->llipaddr), ip4_addr4_16(&autoip->llipaddr))); - - IP4_ADDR(&sn_mask, 255, 255, 0, 0); - IP4_ADDR(&gw_addr, 0, 0, 0, 0); - - netif_set_addr(netif, &autoip->llipaddr, &sn_mask, &gw_addr); - /* interface is used by routing now that an address is set */ - - return ERR_OK; -} - -/** - * @ingroup autoip - * Start AutoIP client - * - * @param netif network interface on which start the AutoIP client - */ -err_t -autoip_start(struct netif *netif) -{ - struct autoip *autoip = netif_autoip_data(netif); - err_t result = ERR_OK; - - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ERROR("netif is not up, old style port?", netif_is_up(netif), return ERR_ARG;); - - /* Set IP-Address, Netmask and Gateway to 0 to make sure that - * ARP Packets are formed correctly - */ - netif_set_addr(netif, IP4_ADDR_ANY4, IP4_ADDR_ANY4, IP4_ADDR_ANY4); - - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, - ("autoip_start(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], - netif->name[1], (u16_t)netif->num)); - if (autoip == NULL) { - /* no AutoIP client attached yet? */ - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, - ("autoip_start(): starting new AUTOIP client\n")); - autoip = (struct autoip *)mem_calloc(1, sizeof(struct autoip)); - if (autoip == NULL) { - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, - ("autoip_start(): could not allocate autoip\n")); - return ERR_MEM; - } - /* store this AutoIP client in the netif */ - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP, autoip); - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, ("autoip_start(): allocated autoip")); - } else { - autoip->state = AUTOIP_STATE_OFF; - autoip->ttw = 0; - autoip->sent_num = 0; - ip4_addr_set_zero(&autoip->llipaddr); - autoip->lastconflict = 0; - } - - autoip_create_addr(netif, &(autoip->llipaddr)); - autoip_start_probing(netif); - - return result; -} - -static void -autoip_start_probing(struct netif *netif) -{ - struct autoip *autoip = netif_autoip_data(netif); - - autoip->state = AUTOIP_STATE_PROBING; - autoip->sent_num = 0; - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, - ("autoip_start_probing(): changing state to PROBING: %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - ip4_addr1_16(&autoip->llipaddr), ip4_addr2_16(&autoip->llipaddr), - ip4_addr3_16(&autoip->llipaddr), ip4_addr4_16(&autoip->llipaddr))); - - /* time to wait to first probe, this is randomly - * chosen out of 0 to PROBE_WAIT seconds. - * compliant to RFC 3927 Section 2.2.1 - */ - autoip->ttw = (u16_t)(LWIP_AUTOIP_RAND(netif) % (PROBE_WAIT * AUTOIP_TICKS_PER_SECOND)); - - /* - * if we tried more then MAX_CONFLICTS we must limit our rate for - * acquiring and probing address - * compliant to RFC 3927 Section 2.2.1 - */ - if (autoip->tried_llipaddr > MAX_CONFLICTS) { - autoip->ttw = RATE_LIMIT_INTERVAL * AUTOIP_TICKS_PER_SECOND; - } -} - -/** - * Handle a possible change in the network configuration. - * - * If there is an AutoIP address configured, take the interface down - * and begin probing with the same address. - */ -void -autoip_network_changed(struct netif *netif) -{ - struct autoip *autoip = netif_autoip_data(netif); - - if (autoip && (autoip->state != AUTOIP_STATE_OFF)) { - autoip_start_probing(netif); - } -} - -/** - * @ingroup autoip - * Stop AutoIP client - * - * @param netif network interface on which stop the AutoIP client - */ -err_t -autoip_stop(struct netif *netif) -{ - struct autoip *autoip = netif_autoip_data(netif); - - LWIP_ASSERT_CORE_LOCKED(); - if (autoip != NULL) { - autoip->state = AUTOIP_STATE_OFF; - if (ip4_addr_islinklocal(netif_ip4_addr(netif))) { - netif_set_addr(netif, IP4_ADDR_ANY4, IP4_ADDR_ANY4, IP4_ADDR_ANY4); - } - } - return ERR_OK; -} - -/** - * Has to be called in loop every AUTOIP_TMR_INTERVAL milliseconds - */ -void -autoip_tmr(void) -{ - struct netif *netif; - /* loop through netif's */ - NETIF_FOREACH(netif) { - struct autoip *autoip = netif_autoip_data(netif); - /* only act on AutoIP configured interfaces */ - if (autoip != NULL) { - if (autoip->lastconflict > 0) { - autoip->lastconflict--; - } - - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, - ("autoip_tmr() AutoIP-State: %"U16_F", ttw=%"U16_F"\n", - (u16_t)(autoip->state), autoip->ttw)); - - if (autoip->ttw > 0) { - autoip->ttw--; - } - - switch (autoip->state) { - case AUTOIP_STATE_PROBING: - if (autoip->ttw == 0) { - if (autoip->sent_num >= PROBE_NUM) { - /* Switch to ANNOUNCING: now we can bind to an IP address and use it */ - autoip->state = AUTOIP_STATE_ANNOUNCING; - autoip_bind(netif); - /* autoip_bind() calls netif_set_addr(): this triggers a gratuitous ARP - which counts as an announcement */ - autoip->sent_num = 1; - autoip->ttw = ANNOUNCE_WAIT * AUTOIP_TICKS_PER_SECOND; - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, - ("autoip_tmr(): changing state to ANNOUNCING: %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - ip4_addr1_16(&autoip->llipaddr), ip4_addr2_16(&autoip->llipaddr), - ip4_addr3_16(&autoip->llipaddr), ip4_addr4_16(&autoip->llipaddr))); - } else { - autoip_arp_probe(netif); - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, ("autoip_tmr() PROBING Sent Probe\n")); - autoip->sent_num++; - if (autoip->sent_num == PROBE_NUM) { - /* calculate time to wait to for announce */ - autoip->ttw = ANNOUNCE_WAIT * AUTOIP_TICKS_PER_SECOND; - } else { - /* calculate time to wait to next probe */ - autoip->ttw = (u16_t)((LWIP_AUTOIP_RAND(netif) % - ((PROBE_MAX - PROBE_MIN) * AUTOIP_TICKS_PER_SECOND) ) + - PROBE_MIN * AUTOIP_TICKS_PER_SECOND); - } - } - } - break; - - case AUTOIP_STATE_ANNOUNCING: - if (autoip->ttw == 0) { - autoip_arp_announce(netif); - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, ("autoip_tmr() ANNOUNCING Sent Announce\n")); - autoip->ttw = ANNOUNCE_INTERVAL * AUTOIP_TICKS_PER_SECOND; - autoip->sent_num++; - - if (autoip->sent_num >= ANNOUNCE_NUM) { - autoip->state = AUTOIP_STATE_BOUND; - autoip->sent_num = 0; - autoip->ttw = 0; - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, - ("autoip_tmr(): changing state to BOUND: %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - ip4_addr1_16(&autoip->llipaddr), ip4_addr2_16(&autoip->llipaddr), - ip4_addr3_16(&autoip->llipaddr), ip4_addr4_16(&autoip->llipaddr))); - } - } - break; - - default: - /* nothing to do in other states */ - break; - } - } - } -} - -/** - * Handles every incoming ARP Packet, called by etharp_input(). - * - * @param netif network interface to use for autoip processing - * @param hdr Incoming ARP packet - */ -void -autoip_arp_reply(struct netif *netif, struct etharp_hdr *hdr) -{ - struct autoip *autoip = netif_autoip_data(netif); - - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE, ("autoip_arp_reply()\n")); - if ((autoip != NULL) && (autoip->state != AUTOIP_STATE_OFF)) { - /* when ip.src == llipaddr && hw.src != netif->hwaddr - * - * when probing ip.dst == llipaddr && hw.src != netif->hwaddr - * we have a conflict and must solve it - */ - ip4_addr_t sipaddr, dipaddr; - struct eth_addr netifaddr; - SMEMCPY(netifaddr.addr, netif->hwaddr, ETH_HWADDR_LEN); - - /* Copy struct ip4_addr_wordaligned to aligned ip4_addr, to support compilers without - * structure packing (not using structure copy which breaks strict-aliasing rules). - */ - IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(&sipaddr, &hdr->sipaddr); - IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(&dipaddr, &hdr->dipaddr); - - if (autoip->state == AUTOIP_STATE_PROBING) { - /* RFC 3927 Section 2.2.1: - * from beginning to after ANNOUNCE_WAIT - * seconds we have a conflict if - * ip.src == llipaddr OR - * ip.dst == llipaddr && hw.src != own hwaddr - */ - if ((ip4_addr_cmp(&sipaddr, &autoip->llipaddr)) || - (ip4_addr_isany_val(sipaddr) && - ip4_addr_cmp(&dipaddr, &autoip->llipaddr) && - !eth_addr_cmp(&netifaddr, &hdr->shwaddr))) { - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE | LWIP_DBG_LEVEL_WARNING, - ("autoip_arp_reply(): Probe Conflict detected\n")); - autoip_restart(netif); - } - } else { - /* RFC 3927 Section 2.5: - * in any state we have a conflict if - * ip.src == llipaddr && hw.src != own hwaddr - */ - if (ip4_addr_cmp(&sipaddr, &autoip->llipaddr) && - !eth_addr_cmp(&netifaddr, &hdr->shwaddr)) { - LWIP_DEBUGF(AUTOIP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE | LWIP_DBG_LEVEL_WARNING, - ("autoip_arp_reply(): Conflicting ARP-Packet detected\n")); - autoip_handle_arp_conflict(netif); - } - } - } -} - -/** check if AutoIP supplied netif->ip_addr - * - * @param netif the netif to check - * @return 1 if AutoIP supplied netif->ip_addr (state BOUND or ANNOUNCING), - * 0 otherwise - */ -u8_t -autoip_supplied_address(const struct netif *netif) -{ - if ((netif != NULL) && (netif_autoip_data(netif) != NULL)) { - struct autoip *autoip = netif_autoip_data(netif); - return (autoip->state == AUTOIP_STATE_BOUND) || (autoip->state == AUTOIP_STATE_ANNOUNCING); - } - return 0; -} - -u8_t -autoip_accept_packet(struct netif *netif, const ip4_addr_t *addr) -{ - struct autoip *autoip = netif_autoip_data(netif); - return (autoip != NULL) && ip4_addr_cmp(addr, &(autoip->llipaddr)); -} - -#endif /* LWIP_IPV4 && LWIP_AUTOIP */ diff --git a/core/c/core/ipv4/dhcp.c b/core/c/core/ipv4/dhcp.c deleted file mode 100755 index 89f9c41..0000000 --- a/core/c/core/ipv4/dhcp.c +++ /dev/null @@ -1,1990 +0,0 @@ -/** - * @file - * Dynamic Host Configuration Protocol client - * - * @defgroup dhcp4 DHCPv4 - * @ingroup ip4 - * DHCP (IPv4) related functions - * This is a DHCP client for the lwIP TCP/IP stack. It aims to conform - * with RFC 2131 and RFC 2132. - * - * @todo: - * - Support for interfaces other than Ethernet (SLIP, PPP, ...) - * - * Options: - * @ref DHCP_COARSE_TIMER_SECS (recommended 60 which is a minute) - * @ref DHCP_FINE_TIMER_MSECS (recommended 500 which equals TCP coarse timer) - * - * dhcp_start() starts a DHCP client instance which - * configures the interface by obtaining an IP address lease and maintaining it. - * - * Use dhcp_release() to end the lease and use dhcp_stop() - * to remove the DHCP client. - * - * @see LWIP_HOOK_DHCP_APPEND_OPTIONS - * @see LWIP_HOOK_DHCP_PARSE_OPTION - * - * @see netifapi_dhcp4 - */ - -/* - * Copyright (c) 2001-2004 Leon Woestenberg - * Copyright (c) 2001-2004 Axon Digital Design B.V., The Netherlands. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * The Swedish Institute of Computer Science and Adam Dunkels - * are specifically granted permission to redistribute this - * source code. - * - * Author: Leon Woestenberg - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV4 && LWIP_DHCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/stats.h" -#include "lwip/mem.h" -#include "lwip/udp.h" -#include "lwip/ip_addr.h" -#include "lwip/netif.h" -#include "lwip/def.h" -#include "lwip/dhcp.h" -#include "lwip/autoip.h" -#include "lwip/dns.h" -#include "lwip/etharp.h" -#include "lwip/prot/dhcp.h" -#include "lwip/prot/iana.h" - -#include - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif -#ifndef LWIP_HOOK_DHCP_APPEND_OPTIONS -#define LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, state, msg, msg_type, options_len_ptr) -#endif -#ifndef LWIP_HOOK_DHCP_PARSE_OPTION -#define LWIP_HOOK_DHCP_PARSE_OPTION(netif, dhcp, state, msg, msg_type, option, len, pbuf, offset) do { LWIP_UNUSED_ARG(msg); } while(0) -#endif - -/** DHCP_CREATE_RAND_XID: if this is set to 1, the xid is created using - * LWIP_RAND() (this overrides DHCP_GLOBAL_XID) - */ -#ifndef DHCP_CREATE_RAND_XID -#define DHCP_CREATE_RAND_XID 1 -#endif - -/** Default for DHCP_GLOBAL_XID is 0xABCD0000 - * This can be changed by defining DHCP_GLOBAL_XID and DHCP_GLOBAL_XID_HEADER, e.g. - * \#define DHCP_GLOBAL_XID_HEADER "stdlib.h" - * \#define DHCP_GLOBAL_XID rand() - */ -#ifdef DHCP_GLOBAL_XID_HEADER -#include DHCP_GLOBAL_XID_HEADER /* include optional starting XID generation prototypes */ -#endif - -/** DHCP_OPTION_MAX_MSG_SIZE is set to the MTU - * MTU is checked to be big enough in dhcp_start */ -#define DHCP_MAX_MSG_LEN(netif) (netif->mtu) -#define DHCP_MAX_MSG_LEN_MIN_REQUIRED 576 -/** Minimum length for reply before packet is parsed */ -#define DHCP_MIN_REPLY_LEN 44 - -#define REBOOT_TRIES 2 - -#if LWIP_DNS && LWIP_DHCP_MAX_DNS_SERVERS -#if DNS_MAX_SERVERS > LWIP_DHCP_MAX_DNS_SERVERS -#define LWIP_DHCP_PROVIDE_DNS_SERVERS LWIP_DHCP_MAX_DNS_SERVERS -#else -#define LWIP_DHCP_PROVIDE_DNS_SERVERS DNS_MAX_SERVERS -#endif -#else -#define LWIP_DHCP_PROVIDE_DNS_SERVERS 0 -#endif - -/** Option handling: options are parsed in dhcp_parse_reply - * and saved in an array where other functions can load them from. - * This might be moved into the struct dhcp (not necessarily since - * lwIP is single-threaded and the array is only used while in recv - * callback). */ -enum dhcp_option_idx { - DHCP_OPTION_IDX_OVERLOAD = 0, - DHCP_OPTION_IDX_MSG_TYPE, - DHCP_OPTION_IDX_SERVER_ID, - DHCP_OPTION_IDX_LEASE_TIME, - DHCP_OPTION_IDX_T1, - DHCP_OPTION_IDX_T2, - DHCP_OPTION_IDX_SUBNET_MASK, - DHCP_OPTION_IDX_ROUTER, -#if LWIP_DHCP_PROVIDE_DNS_SERVERS - DHCP_OPTION_IDX_DNS_SERVER, - DHCP_OPTION_IDX_DNS_SERVER_LAST = DHCP_OPTION_IDX_DNS_SERVER + LWIP_DHCP_PROVIDE_DNS_SERVERS - 1, -#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS */ -#if LWIP_DHCP_GET_NTP_SRV - DHCP_OPTION_IDX_NTP_SERVER, - DHCP_OPTION_IDX_NTP_SERVER_LAST = DHCP_OPTION_IDX_NTP_SERVER + LWIP_DHCP_MAX_NTP_SERVERS - 1, -#endif /* LWIP_DHCP_GET_NTP_SRV */ - DHCP_OPTION_IDX_MAX -}; - -/** Holds the decoded option values, only valid while in dhcp_recv. - @todo: move this into struct dhcp? */ -u32_t dhcp_rx_options_val[DHCP_OPTION_IDX_MAX]; -/** Holds a flag which option was received and is contained in dhcp_rx_options_val, - only valid while in dhcp_recv. - @todo: move this into struct dhcp? */ -u8_t dhcp_rx_options_given[DHCP_OPTION_IDX_MAX]; - -static u8_t dhcp_discover_request_options[] = { - DHCP_OPTION_SUBNET_MASK, - DHCP_OPTION_ROUTER, - DHCP_OPTION_BROADCAST -#if LWIP_DHCP_PROVIDE_DNS_SERVERS - , DHCP_OPTION_DNS_SERVER -#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS */ -#if LWIP_DHCP_GET_NTP_SRV - , DHCP_OPTION_NTP -#endif /* LWIP_DHCP_GET_NTP_SRV */ -}; - -#ifdef DHCP_GLOBAL_XID -static u32_t xid; -static u8_t xid_initialised; -#endif /* DHCP_GLOBAL_XID */ - -#define dhcp_option_given(dhcp, idx) (dhcp_rx_options_given[idx] != 0) -#define dhcp_got_option(dhcp, idx) (dhcp_rx_options_given[idx] = 1) -#define dhcp_clear_option(dhcp, idx) (dhcp_rx_options_given[idx] = 0) -#define dhcp_clear_all_options(dhcp) (memset(dhcp_rx_options_given, 0, sizeof(dhcp_rx_options_given))) -#define dhcp_get_option_value(dhcp, idx) (dhcp_rx_options_val[idx]) -#define dhcp_set_option_value(dhcp, idx, val) (dhcp_rx_options_val[idx] = (val)) - -static struct udp_pcb *dhcp_pcb; -static u8_t dhcp_pcb_refcount; - -/* DHCP client state machine functions */ -static err_t dhcp_discover(struct netif *netif); -static err_t dhcp_select(struct netif *netif); -static void dhcp_bind(struct netif *netif); -#if DHCP_DOES_ARP_CHECK -static err_t dhcp_decline(struct netif *netif); -#endif /* DHCP_DOES_ARP_CHECK */ -static err_t dhcp_rebind(struct netif *netif); -static err_t dhcp_reboot(struct netif *netif); -static void dhcp_set_state(struct dhcp *dhcp, u8_t new_state); - -/* receive, unfold, parse and free incoming messages */ -static void dhcp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port); - -/* set the DHCP timers */ -static void dhcp_timeout(struct netif *netif); -static void dhcp_t1_timeout(struct netif *netif); -static void dhcp_t2_timeout(struct netif *netif); - -/* build outgoing messages */ -/* create a DHCP message, fill in common headers */ -static struct pbuf *dhcp_create_msg(struct netif *netif, struct dhcp *dhcp, u8_t message_type, u16_t *options_out_len); -/* add a DHCP option (type, then length in bytes) */ -static u16_t dhcp_option(u16_t options_out_len, u8_t *options, u8_t option_type, u8_t option_len); -/* add option values */ -static u16_t dhcp_option_byte(u16_t options_out_len, u8_t *options, u8_t value); -static u16_t dhcp_option_short(u16_t options_out_len, u8_t *options, u16_t value); -static u16_t dhcp_option_long(u16_t options_out_len, u8_t *options, u32_t value); -#if LWIP_NETIF_HOSTNAME -static u16_t dhcp_option_hostname(u16_t options_out_len, u8_t *options, struct netif *netif); -#endif /* LWIP_NETIF_HOSTNAME */ -/* always add the DHCP options trailer to end and pad */ -static void dhcp_option_trailer(u16_t options_out_len, u8_t *options, struct pbuf *p_out); - -/** Ensure DHCP PCB is allocated and bound */ -static err_t -dhcp_inc_pcb_refcount(void) -{ - if (dhcp_pcb_refcount == 0) { - LWIP_ASSERT("dhcp_inc_pcb_refcount(): memory leak", dhcp_pcb == NULL); - - /* allocate UDP PCB */ - dhcp_pcb = udp_new(); - - if (dhcp_pcb == NULL) { - return ERR_MEM; - } - - ip_set_option(dhcp_pcb, SOF_BROADCAST); - - /* set up local and remote port for the pcb -> listen on all interfaces on all src/dest IPs */ - udp_bind(dhcp_pcb, IP4_ADDR_ANY, LWIP_IANA_PORT_DHCP_CLIENT); - udp_connect(dhcp_pcb, IP4_ADDR_ANY, LWIP_IANA_PORT_DHCP_SERVER); - udp_recv(dhcp_pcb, dhcp_recv, NULL); - } - - dhcp_pcb_refcount++; - - return ERR_OK; -} - -/** Free DHCP PCB if the last netif stops using it */ -static void -dhcp_dec_pcb_refcount(void) -{ - LWIP_ASSERT("dhcp_pcb_refcount(): refcount error", (dhcp_pcb_refcount > 0)); - dhcp_pcb_refcount--; - - if (dhcp_pcb_refcount == 0) { - udp_remove(dhcp_pcb); - dhcp_pcb = NULL; - } -} - -/** - * Back-off the DHCP client (because of a received NAK response). - * - * Back-off the DHCP client because of a received NAK. Receiving a - * NAK means the client asked for something non-sensible, for - * example when it tries to renew a lease obtained on another network. - * - * We clear any existing set IP address and restart DHCP negotiation - * afresh (as per RFC2131 3.2.3). - * - * @param netif the netif under DHCP control - */ -static void -dhcp_handle_nak(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_handle_nak(netif=%p) %c%c%"U16_F"\n", - (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); - /* Change to a defined state - set this before assigning the address - to ensure the callback can use dhcp_supplied_address() */ - dhcp_set_state(dhcp, DHCP_STATE_BACKING_OFF); - /* remove IP address from interface (must no longer be used, as per RFC2131) */ - netif_set_addr(netif, IP4_ADDR_ANY4, IP4_ADDR_ANY4, IP4_ADDR_ANY4); - /* We can immediately restart discovery */ - dhcp_discover(netif); -} - -#if DHCP_DOES_ARP_CHECK -/** - * Checks if the offered IP address is already in use. - * - * It does so by sending an ARP request for the offered address and - * entering CHECKING state. If no ARP reply is received within a small - * interval, the address is assumed to be free for use by us. - * - * @param netif the netif under DHCP control - */ -static void -dhcp_check(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - err_t result; - u16_t msecs; - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_check(netif=%p) %c%c\n", (void *)netif, (s16_t)netif->name[0], - (s16_t)netif->name[1])); - dhcp_set_state(dhcp, DHCP_STATE_CHECKING); - /* create an ARP query for the offered IP address, expecting that no host - responds, as the IP address should not be in use. */ - result = etharp_query(netif, &dhcp->offered_ip_addr, NULL); - if (result != ERR_OK) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("dhcp_check: could not perform ARP query\n")); - } - if (dhcp->tries < 255) { - dhcp->tries++; - } - msecs = 500; - dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_check(): set request timeout %"U16_F" msecs\n", msecs)); -} -#endif /* DHCP_DOES_ARP_CHECK */ - -/** - * Remember the configuration offered by a DHCP server. - * - * @param netif the netif under DHCP control - */ -static void -dhcp_handle_offer(struct netif *netif, struct dhcp_msg *msg_in) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_handle_offer(netif=%p) %c%c%"U16_F"\n", - (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); - /* obtain the server address */ - if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_SERVER_ID)) { - dhcp->request_timeout = 0; /* stop timer */ - - ip_addr_set_ip4_u32(&dhcp->server_ip_addr, lwip_htonl(dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_SERVER_ID))); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_STATE, ("dhcp_handle_offer(): server 0x%08"X32_F"\n", - ip4_addr_get_u32(ip_2_ip4(&dhcp->server_ip_addr)))); - /* remember offered address */ - ip4_addr_copy(dhcp->offered_ip_addr, msg_in->yiaddr); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_STATE, ("dhcp_handle_offer(): offer for 0x%08"X32_F"\n", - ip4_addr_get_u32(&dhcp->offered_ip_addr))); - - dhcp_select(netif); - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, - ("dhcp_handle_offer(netif=%p) did not get server ID!\n", (void *)netif)); - } -} - -/** - * Select a DHCP server offer out of all offers. - * - * Simply select the first offer received. - * - * @param netif the netif under DHCP control - * @return lwIP specific error (see error.h) - */ -static err_t -dhcp_select(struct netif *netif) -{ - struct dhcp *dhcp; - err_t result; - u16_t msecs; - u8_t i; - struct pbuf *p_out; - u16_t options_out_len; - - LWIP_ERROR("dhcp_select: netif != NULL", (netif != NULL), return ERR_ARG;); - dhcp = netif_dhcp_data(netif); - LWIP_ERROR("dhcp_select: dhcp != NULL", (dhcp != NULL), return ERR_VAL;); - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_select(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); - dhcp_set_state(dhcp, DHCP_STATE_REQUESTING); - - /* create and initialize the DHCP message header */ - p_out = dhcp_create_msg(netif, dhcp, DHCP_REQUEST, &options_out_len); - if (p_out != NULL) { - struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); - options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN(netif)); - - /* MUST request the offered IP address */ - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_REQUESTED_IP, 4); - options_out_len = dhcp_option_long(options_out_len, msg_out->options, lwip_ntohl(ip4_addr_get_u32(&dhcp->offered_ip_addr))); - - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_SERVER_ID, 4); - options_out_len = dhcp_option_long(options_out_len, msg_out->options, lwip_ntohl(ip4_addr_get_u32(ip_2_ip4(&dhcp->server_ip_addr)))); - - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_PARAMETER_REQUEST_LIST, LWIP_ARRAYSIZE(dhcp_discover_request_options)); - for (i = 0; i < LWIP_ARRAYSIZE(dhcp_discover_request_options); i++) { - options_out_len = dhcp_option_byte(options_out_len, msg_out->options, dhcp_discover_request_options[i]); - } - -#if LWIP_NETIF_HOSTNAME - options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif); -#endif /* LWIP_NETIF_HOSTNAME */ - - LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_REQUESTING, msg_out, DHCP_REQUEST, &options_out_len); - dhcp_option_trailer(options_out_len, msg_out->options, p_out); - - /* send broadcast to any DHCP server */ - result = udp_sendto_if_src(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif, IP4_ADDR_ANY); - pbuf_free(p_out); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_select: REQUESTING\n")); - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("dhcp_select: could not allocate DHCP request\n")); - result = ERR_MEM; - } - if (dhcp->tries < 255) { - dhcp->tries++; - } - msecs = (u16_t)((dhcp->tries < 6 ? 1 << dhcp->tries : 60) * 1000); - dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_STATE, ("dhcp_select(): set request timeout %"U16_F" msecs\n", msecs)); - return result; -} - -/** - * The DHCP timer that checks for lease renewal/rebind timeouts. - * Must be called once a minute (see @ref DHCP_COARSE_TIMER_SECS). - */ -void -dhcp_coarse_tmr(void) -{ - struct netif *netif; - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_coarse_tmr()\n")); - /* iterate through all network interfaces */ - NETIF_FOREACH(netif) { - /* only act on DHCP configured interfaces */ - struct dhcp *dhcp = netif_dhcp_data(netif); - if ((dhcp != NULL) && (dhcp->state != DHCP_STATE_OFF)) { - /* compare lease time to expire timeout */ - if (dhcp->t0_timeout && (++dhcp->lease_used == dhcp->t0_timeout)) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_coarse_tmr(): t0 timeout\n")); - /* this clients' lease time has expired */ - dhcp_release_and_stop(netif); - dhcp_start(netif); - /* timer is active (non zero), and triggers (zeroes) now? */ - } else if (dhcp->t2_rebind_time && (dhcp->t2_rebind_time-- == 1)) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_coarse_tmr(): t2 timeout\n")); - /* this clients' rebind timeout triggered */ - dhcp_t2_timeout(netif); - /* timer is active (non zero), and triggers (zeroes) now */ - } else if (dhcp->t1_renew_time && (dhcp->t1_renew_time-- == 1)) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_coarse_tmr(): t1 timeout\n")); - /* this clients' renewal timeout triggered */ - dhcp_t1_timeout(netif); - } - } - } -} - -/** - * DHCP transaction timeout handling (this function must be called every 500ms, - * see @ref DHCP_FINE_TIMER_MSECS). - * - * A DHCP server is expected to respond within a short period of time. - * This timer checks whether an outstanding DHCP request is timed out. - */ -void -dhcp_fine_tmr(void) -{ - struct netif *netif; - /* loop through netif's */ - NETIF_FOREACH(netif) { - struct dhcp *dhcp = netif_dhcp_data(netif); - /* only act on DHCP configured interfaces */ - if (dhcp != NULL) { - /* timer is active (non zero), and is about to trigger now */ - if (dhcp->request_timeout > 1) { - dhcp->request_timeout--; - } else if (dhcp->request_timeout == 1) { - dhcp->request_timeout--; - /* { dhcp->request_timeout == 0 } */ - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_fine_tmr(): request timeout\n")); - /* this client's request timeout triggered */ - dhcp_timeout(netif); - } - } - } -} - -/** - * A DHCP negotiation transaction, or ARP request, has timed out. - * - * The timer that was started with the DHCP or ARP request has - * timed out, indicating no response was received in time. - * - * @param netif the netif under DHCP control - */ -static void -dhcp_timeout(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_timeout()\n")); - /* back-off period has passed, or server selection timed out */ - if ((dhcp->state == DHCP_STATE_BACKING_OFF) || (dhcp->state == DHCP_STATE_SELECTING)) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_timeout(): restarting discovery\n")); - dhcp_discover(netif); - /* receiving the requested lease timed out */ - } else if (dhcp->state == DHCP_STATE_REQUESTING) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_timeout(): REQUESTING, DHCP request timed out\n")); - if (dhcp->tries <= 5) { - dhcp_select(netif); - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_timeout(): REQUESTING, releasing, restarting\n")); - dhcp_release_and_stop(netif); - dhcp_start(netif); - } -#if DHCP_DOES_ARP_CHECK - /* received no ARP reply for the offered address (which is good) */ - } else if (dhcp->state == DHCP_STATE_CHECKING) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_timeout(): CHECKING, ARP request timed out\n")); - if (dhcp->tries <= 1) { - dhcp_check(netif); - /* no ARP replies on the offered address, - looks like the IP address is indeed free */ - } else { - /* bind the interface to the offered address */ - dhcp_bind(netif); - } -#endif /* DHCP_DOES_ARP_CHECK */ - } else if (dhcp->state == DHCP_STATE_REBOOTING) { - if (dhcp->tries < REBOOT_TRIES) { - dhcp_reboot(netif); - } else { - dhcp_discover(netif); - } - } -} - -/** - * The renewal period has timed out. - * - * @param netif the netif under DHCP control - */ -static void -dhcp_t1_timeout(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_STATE, ("dhcp_t1_timeout()\n")); - if ((dhcp->state == DHCP_STATE_REQUESTING) || (dhcp->state == DHCP_STATE_BOUND) || - (dhcp->state == DHCP_STATE_RENEWING)) { - /* just retry to renew - note that the rebind timer (t2) will - * eventually time-out if renew tries fail. */ - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, - ("dhcp_t1_timeout(): must renew\n")); - /* This slightly different to RFC2131: DHCPREQUEST will be sent from state - DHCP_STATE_RENEWING, not DHCP_STATE_BOUND */ - dhcp_renew(netif); - /* Calculate next timeout */ - if (((dhcp->t2_timeout - dhcp->lease_used) / 2) >= ((60 + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS)) { - dhcp->t1_renew_time = (u16_t)((dhcp->t2_timeout - dhcp->lease_used) / 2); - } - } -} - -/** - * The rebind period has timed out. - * - * @param netif the netif under DHCP control - */ -static void -dhcp_t2_timeout(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_t2_timeout()\n")); - if ((dhcp->state == DHCP_STATE_REQUESTING) || (dhcp->state == DHCP_STATE_BOUND) || - (dhcp->state == DHCP_STATE_RENEWING) || (dhcp->state == DHCP_STATE_REBINDING)) { - /* just retry to rebind */ - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, - ("dhcp_t2_timeout(): must rebind\n")); - /* This slightly different to RFC2131: DHCPREQUEST will be sent from state - DHCP_STATE_REBINDING, not DHCP_STATE_BOUND */ - dhcp_rebind(netif); - /* Calculate next timeout */ - if (((dhcp->t0_timeout - dhcp->lease_used) / 2) >= ((60 + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS)) { - dhcp->t2_rebind_time = (u16_t)((dhcp->t0_timeout - dhcp->lease_used) / 2); - } - } -} - -/** - * Handle a DHCP ACK packet - * - * @param netif the netif under DHCP control - */ -static void -dhcp_handle_ack(struct netif *netif, struct dhcp_msg *msg_in) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - -#if LWIP_DHCP_PROVIDE_DNS_SERVERS || LWIP_DHCP_GET_NTP_SRV - u8_t n; -#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS || LWIP_DHCP_GET_NTP_SRV */ -#if LWIP_DHCP_GET_NTP_SRV - ip4_addr_t ntp_server_addrs[LWIP_DHCP_MAX_NTP_SERVERS]; -#endif - - /* clear options we might not get from the ACK */ - ip4_addr_set_zero(&dhcp->offered_sn_mask); - ip4_addr_set_zero(&dhcp->offered_gw_addr); -#if LWIP_DHCP_BOOTP_FILE - ip4_addr_set_zero(&dhcp->offered_si_addr); -#endif /* LWIP_DHCP_BOOTP_FILE */ - - /* lease time given? */ - if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_LEASE_TIME)) { - /* remember offered lease time */ - dhcp->offered_t0_lease = dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_LEASE_TIME); - } - /* renewal period given? */ - if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_T1)) { - /* remember given renewal period */ - dhcp->offered_t1_renew = dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_T1); - } else { - /* calculate safe periods for renewal */ - dhcp->offered_t1_renew = dhcp->offered_t0_lease / 2; - } - - /* renewal period given? */ - if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_T2)) { - /* remember given rebind period */ - dhcp->offered_t2_rebind = dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_T2); - } else { - /* calculate safe periods for rebinding (offered_t0_lease * 0.875 -> 87.5%)*/ - dhcp->offered_t2_rebind = (dhcp->offered_t0_lease * 7U) / 8U; - } - - /* (y)our internet address */ - ip4_addr_copy(dhcp->offered_ip_addr, msg_in->yiaddr); - -#if LWIP_DHCP_BOOTP_FILE - /* copy boot server address, - boot file name copied in dhcp_parse_reply if not overloaded */ - ip4_addr_copy(dhcp->offered_si_addr, msg_in->siaddr); -#endif /* LWIP_DHCP_BOOTP_FILE */ - - /* subnet mask given? */ - if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_SUBNET_MASK)) { - /* remember given subnet mask */ - ip4_addr_set_u32(&dhcp->offered_sn_mask, lwip_htonl(dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_SUBNET_MASK))); - dhcp->subnet_mask_given = 1; - } else { - dhcp->subnet_mask_given = 0; - } - - /* gateway router */ - if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_ROUTER)) { - ip4_addr_set_u32(&dhcp->offered_gw_addr, lwip_htonl(dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_ROUTER))); - } - -#if LWIP_DHCP_GET_NTP_SRV - /* NTP servers */ - for (n = 0; (n < LWIP_DHCP_MAX_NTP_SERVERS) && dhcp_option_given(dhcp, DHCP_OPTION_IDX_NTP_SERVER + n); n++) { - ip4_addr_set_u32(&ntp_server_addrs[n], lwip_htonl(dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_NTP_SERVER + n))); - } - dhcp_set_ntp_servers(n, ntp_server_addrs); -#endif /* LWIP_DHCP_GET_NTP_SRV */ - -#if LWIP_DHCP_PROVIDE_DNS_SERVERS - /* DNS servers */ - for (n = 0; (n < LWIP_DHCP_PROVIDE_DNS_SERVERS) && dhcp_option_given(dhcp, DHCP_OPTION_IDX_DNS_SERVER + n); n++) { - ip_addr_t dns_addr; - ip_addr_set_ip4_u32_val(dns_addr, lwip_htonl(dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_DNS_SERVER + n))); - dns_setserver(n, &dns_addr); - } -#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS */ -} - -/** - * @ingroup dhcp4 - * Set a statically allocated struct dhcp to work with. - * Using this prevents dhcp_start to allocate it using mem_malloc. - * - * @param netif the netif for which to set the struct dhcp - * @param dhcp (uninitialised) dhcp struct allocated by the application - */ -void -dhcp_set_struct(struct netif *netif, struct dhcp *dhcp) -{ - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ASSERT("netif != NULL", netif != NULL); - LWIP_ASSERT("dhcp != NULL", dhcp != NULL); - LWIP_ASSERT("netif already has a struct dhcp set", netif_dhcp_data(netif) == NULL); - - /* clear data structure */ - memset(dhcp, 0, sizeof(struct dhcp)); - /* dhcp_set_state(&dhcp, DHCP_STATE_OFF); */ - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, dhcp); -} - -/** - * @ingroup dhcp4 - * Removes a struct dhcp from a netif. - * - * ATTENTION: Only use this when not using dhcp_set_struct() to allocate the - * struct dhcp since the memory is passed back to the heap. - * - * @param netif the netif from which to remove the struct dhcp - */ -void dhcp_cleanup(struct netif *netif) -{ - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ASSERT("netif != NULL", netif != NULL); - - if (netif_dhcp_data(netif) != NULL) { - mem_free(netif_dhcp_data(netif)); - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, NULL); - } -} - -/** - * @ingroup dhcp4 - * Start DHCP negotiation for a network interface. - * - * If no DHCP client instance was attached to this interface, - * a new client is created first. If a DHCP client instance - * was already present, it restarts negotiation. - * - * @param netif The lwIP network interface - * @return lwIP error code - * - ERR_OK - No error - * - ERR_MEM - Out of memory - */ -err_t -dhcp_start(struct netif *netif) -{ - struct dhcp *dhcp; - err_t result; - - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ERROR("netif != NULL", (netif != NULL), return ERR_ARG;); - LWIP_ERROR("netif is not up, old style port?", netif_is_up(netif), return ERR_ARG;); - dhcp = netif_dhcp_data(netif); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_start(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); - - /* check MTU of the netif */ - if (netif->mtu < DHCP_MAX_MSG_LEN_MIN_REQUIRED) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): Cannot use this netif with DHCP: MTU is too small\n")); - return ERR_MEM; - } - - /* no DHCP client attached yet? */ - if (dhcp == NULL) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): mallocing new DHCP client\n")); - dhcp = (struct dhcp *)mem_malloc(sizeof(struct dhcp)); - if (dhcp == NULL) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): could not allocate dhcp\n")); - return ERR_MEM; - } - - /* store this dhcp client in the netif */ - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, dhcp); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): allocated dhcp")); - /* already has DHCP client attached */ - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_start(): restarting DHCP configuration\n")); - - if (dhcp->pcb_allocated != 0) { - dhcp_dec_pcb_refcount(); /* free DHCP PCB if not needed any more */ - } - /* dhcp is cleared below, no need to reset flag*/ - } - - /* clear data structure */ - memset(dhcp, 0, sizeof(struct dhcp)); - /* dhcp_set_state(&dhcp, DHCP_STATE_OFF); */ - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_start(): starting DHCP configuration\n")); - - if (dhcp_inc_pcb_refcount() != ERR_OK) { /* ensure DHCP PCB is allocated */ - return ERR_MEM; - } - dhcp->pcb_allocated = 1; - - if (!netif_is_link_up(netif)) { - /* set state INIT and wait for dhcp_network_changed() to call dhcp_discover() */ - dhcp_set_state(dhcp, DHCP_STATE_INIT); - return ERR_OK; - } - - /* (re)start the DHCP negotiation */ - result = dhcp_discover(netif); - if (result != ERR_OK) { - /* free resources allocated above */ - dhcp_release_and_stop(netif); - return ERR_MEM; - } - return result; -} - -/** - * @ingroup dhcp4 - * Inform a DHCP server of our manual configuration. - * - * This informs DHCP servers of our fixed IP address configuration - * by sending an INFORM message. It does not involve DHCP address - * configuration, it is just here to be nice to the network. - * - * @param netif The lwIP network interface - */ -void -dhcp_inform(struct netif *netif) -{ - struct dhcp dhcp; - struct pbuf *p_out; - u16_t options_out_len; - - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ERROR("netif != NULL", (netif != NULL), return;); - - if (dhcp_inc_pcb_refcount() != ERR_OK) { /* ensure DHCP PCB is allocated */ - return; - } - - memset(&dhcp, 0, sizeof(struct dhcp)); - dhcp_set_state(&dhcp, DHCP_STATE_INFORMING); - - /* create and initialize the DHCP message header */ - p_out = dhcp_create_msg(netif, &dhcp, DHCP_INFORM, &options_out_len); - if (p_out != NULL) { - struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); - options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN(netif)); - - LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, &dhcp, DHCP_STATE_INFORMING, msg_out, DHCP_INFORM, &options_out_len); - dhcp_option_trailer(options_out_len, msg_out->options, p_out); - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_inform: INFORMING\n")); - - udp_sendto_if(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif); - - pbuf_free(p_out); - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_inform: could not allocate DHCP request\n")); - } - - dhcp_dec_pcb_refcount(); /* delete DHCP PCB if not needed any more */ -} - -/** Handle a possible change in the network configuration. - * - * This enters the REBOOTING state to verify that the currently bound - * address is still valid. - */ -void -dhcp_network_changed(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - - if (!dhcp) { - return; - } - switch (dhcp->state) { - case DHCP_STATE_REBINDING: - case DHCP_STATE_RENEWING: - case DHCP_STATE_BOUND: - case DHCP_STATE_REBOOTING: - dhcp->tries = 0; - dhcp_reboot(netif); - break; - case DHCP_STATE_OFF: - /* stay off */ - break; - default: - LWIP_ASSERT("invalid dhcp->state", dhcp->state <= DHCP_STATE_BACKING_OFF); - /* INIT/REQUESTING/CHECKING/BACKING_OFF restart with new 'rid' because the - state changes, SELECTING: continue with current 'rid' as we stay in the - same state */ -#if LWIP_DHCP_AUTOIP_COOP - if (dhcp->autoip_coop_state == DHCP_AUTOIP_COOP_STATE_ON) { - autoip_stop(netif); - dhcp->autoip_coop_state = DHCP_AUTOIP_COOP_STATE_OFF; - } -#endif /* LWIP_DHCP_AUTOIP_COOP */ - /* ensure we start with short timeouts, even if already discovering */ - dhcp->tries = 0; - dhcp_discover(netif); - break; - } -} - -#if DHCP_DOES_ARP_CHECK -/** - * Match an ARP reply with the offered IP address: - * check whether the offered IP address is not in use using ARP - * - * @param netif the network interface on which the reply was received - * @param addr The IP address we received a reply from - */ -void -dhcp_arp_reply(struct netif *netif, const ip4_addr_t *addr) -{ - struct dhcp *dhcp; - - LWIP_ERROR("netif != NULL", (netif != NULL), return;); - dhcp = netif_dhcp_data(netif); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_arp_reply()\n")); - /* is a DHCP client doing an ARP check? */ - if ((dhcp != NULL) && (dhcp->state == DHCP_STATE_CHECKING)) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_arp_reply(): CHECKING, arp reply for 0x%08"X32_F"\n", - ip4_addr_get_u32(addr))); - /* did a host respond with the address we - were offered by the DHCP server? */ - if (ip4_addr_cmp(addr, &dhcp->offered_ip_addr)) { - /* we will not accept the offered address */ - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE | LWIP_DBG_LEVEL_WARNING, - ("dhcp_arp_reply(): arp reply matched with offered address, declining\n")); - dhcp_decline(netif); - } - } -} - -/** - * Decline an offered lease. - * - * Tell the DHCP server we do not accept the offered address. - * One reason to decline the lease is when we find out the address - * is already in use by another host (through ARP). - * - * @param netif the netif under DHCP control - */ -static err_t -dhcp_decline(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - err_t result; - u16_t msecs; - struct pbuf *p_out; - u16_t options_out_len; - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_decline()\n")); - dhcp_set_state(dhcp, DHCP_STATE_BACKING_OFF); - /* create and initialize the DHCP message header */ - p_out = dhcp_create_msg(netif, dhcp, DHCP_DECLINE, &options_out_len); - if (p_out != NULL) { - struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_REQUESTED_IP, 4); - options_out_len = dhcp_option_long(options_out_len, msg_out->options, lwip_ntohl(ip4_addr_get_u32(&dhcp->offered_ip_addr))); - - LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_BACKING_OFF, msg_out, DHCP_DECLINE, &options_out_len); - dhcp_option_trailer(options_out_len, msg_out->options, p_out); - - /* per section 4.4.4, broadcast DECLINE messages */ - result = udp_sendto_if_src(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif, IP4_ADDR_ANY); - pbuf_free(p_out); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_decline: BACKING OFF\n")); - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, - ("dhcp_decline: could not allocate DHCP request\n")); - result = ERR_MEM; - } - if (dhcp->tries < 255) { - dhcp->tries++; - } - msecs = 10 * 1000; - dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_decline(): set request timeout %"U16_F" msecs\n", msecs)); - return result; -} -#endif /* DHCP_DOES_ARP_CHECK */ - - -/** - * Start the DHCP process, discover a DHCP server. - * - * @param netif the netif under DHCP control - */ -static err_t -dhcp_discover(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - err_t result = ERR_OK; - u16_t msecs; - u8_t i; - struct pbuf *p_out; - u16_t options_out_len; - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_discover()\n")); - - ip4_addr_set_any(&dhcp->offered_ip_addr); - dhcp_set_state(dhcp, DHCP_STATE_SELECTING); - /* create and initialize the DHCP message header */ - p_out = dhcp_create_msg(netif, dhcp, DHCP_DISCOVER, &options_out_len); - if (p_out != NULL) { - struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_discover: making request\n")); - - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); - options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN(netif)); - - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_PARAMETER_REQUEST_LIST, LWIP_ARRAYSIZE(dhcp_discover_request_options)); - for (i = 0; i < LWIP_ARRAYSIZE(dhcp_discover_request_options); i++) { - options_out_len = dhcp_option_byte(options_out_len, msg_out->options, dhcp_discover_request_options[i]); - } - LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_SELECTING, msg_out, DHCP_DISCOVER, &options_out_len); - dhcp_option_trailer(options_out_len, msg_out->options, p_out); - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_discover: sendto(DISCOVER, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER)\n")); - udp_sendto_if_src(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif, IP4_ADDR_ANY); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_discover: deleting()ing\n")); - pbuf_free(p_out); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_discover: SELECTING\n")); - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_discover: could not allocate DHCP request\n")); - } - if (dhcp->tries < 255) { - dhcp->tries++; - } -#if LWIP_DHCP_AUTOIP_COOP - if (dhcp->tries >= LWIP_DHCP_AUTOIP_COOP_TRIES && dhcp->autoip_coop_state == DHCP_AUTOIP_COOP_STATE_OFF) { - dhcp->autoip_coop_state = DHCP_AUTOIP_COOP_STATE_ON; - autoip_start(netif); - } -#endif /* LWIP_DHCP_AUTOIP_COOP */ - msecs = (u16_t)((dhcp->tries < 6 ? 1 << dhcp->tries : 60) * 1000); - dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_discover(): set request timeout %"U16_F" msecs\n", msecs)); - return result; -} - - -/** - * Bind the interface to the offered IP address. - * - * @param netif network interface to bind to the offered address - */ -static void -dhcp_bind(struct netif *netif) -{ - u32_t timeout; - struct dhcp *dhcp; - ip4_addr_t sn_mask, gw_addr; - LWIP_ERROR("dhcp_bind: netif != NULL", (netif != NULL), return;); - dhcp = netif_dhcp_data(netif); - LWIP_ERROR("dhcp_bind: dhcp != NULL", (dhcp != NULL), return;); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_bind(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); - - /* reset time used of lease */ - dhcp->lease_used = 0; - - if (dhcp->offered_t0_lease != 0xffffffffUL) { - /* set renewal period timer */ - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_bind(): t0 renewal timer %"U32_F" secs\n", dhcp->offered_t0_lease)); - timeout = (dhcp->offered_t0_lease + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS; - if (timeout > 0xffff) { - timeout = 0xffff; - } - dhcp->t0_timeout = (u16_t)timeout; - if (dhcp->t0_timeout == 0) { - dhcp->t0_timeout = 1; - } - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_bind(): set request timeout %"U32_F" msecs\n", dhcp->offered_t0_lease * 1000)); - } - - /* temporary DHCP lease? */ - if (dhcp->offered_t1_renew != 0xffffffffUL) { - /* set renewal period timer */ - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_bind(): t1 renewal timer %"U32_F" secs\n", dhcp->offered_t1_renew)); - timeout = (dhcp->offered_t1_renew + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS; - if (timeout > 0xffff) { - timeout = 0xffff; - } - dhcp->t1_timeout = (u16_t)timeout; - if (dhcp->t1_timeout == 0) { - dhcp->t1_timeout = 1; - } - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_bind(): set request timeout %"U32_F" msecs\n", dhcp->offered_t1_renew * 1000)); - dhcp->t1_renew_time = dhcp->t1_timeout; - } - /* set renewal period timer */ - if (dhcp->offered_t2_rebind != 0xffffffffUL) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_bind(): t2 rebind timer %"U32_F" secs\n", dhcp->offered_t2_rebind)); - timeout = (dhcp->offered_t2_rebind + DHCP_COARSE_TIMER_SECS / 2) / DHCP_COARSE_TIMER_SECS; - if (timeout > 0xffff) { - timeout = 0xffff; - } - dhcp->t2_timeout = (u16_t)timeout; - if (dhcp->t2_timeout == 0) { - dhcp->t2_timeout = 1; - } - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_bind(): set request timeout %"U32_F" msecs\n", dhcp->offered_t2_rebind * 1000)); - dhcp->t2_rebind_time = dhcp->t2_timeout; - } - - /* If we have sub 1 minute lease, t2 and t1 will kick in at the same time. */ - if ((dhcp->t1_timeout >= dhcp->t2_timeout) && (dhcp->t2_timeout > 0)) { - dhcp->t1_timeout = 0; - } - - if (dhcp->subnet_mask_given) { - /* copy offered network mask */ - ip4_addr_copy(sn_mask, dhcp->offered_sn_mask); - } else { - /* subnet mask not given, choose a safe subnet mask given the network class */ - u8_t first_octet = ip4_addr1(&dhcp->offered_ip_addr); - if (first_octet <= 127) { - ip4_addr_set_u32(&sn_mask, PP_HTONL(0xff000000UL)); - } else if (first_octet >= 192) { - ip4_addr_set_u32(&sn_mask, PP_HTONL(0xffffff00UL)); - } else { - ip4_addr_set_u32(&sn_mask, PP_HTONL(0xffff0000UL)); - } - } - - ip4_addr_copy(gw_addr, dhcp->offered_gw_addr); - /* gateway address not given? */ - if (ip4_addr_isany_val(gw_addr)) { - /* copy network address */ - ip4_addr_get_network(&gw_addr, &dhcp->offered_ip_addr, &sn_mask); - /* use first host address on network as gateway */ - ip4_addr_set_u32(&gw_addr, ip4_addr_get_u32(&gw_addr) | PP_HTONL(0x00000001UL)); - } - -#if LWIP_DHCP_AUTOIP_COOP - if (dhcp->autoip_coop_state == DHCP_AUTOIP_COOP_STATE_ON) { - autoip_stop(netif); - dhcp->autoip_coop_state = DHCP_AUTOIP_COOP_STATE_OFF; - } -#endif /* LWIP_DHCP_AUTOIP_COOP */ - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_STATE, ("dhcp_bind(): IP: 0x%08"X32_F" SN: 0x%08"X32_F" GW: 0x%08"X32_F"\n", - ip4_addr_get_u32(&dhcp->offered_ip_addr), ip4_addr_get_u32(&sn_mask), ip4_addr_get_u32(&gw_addr))); - /* netif is now bound to DHCP leased address - set this before assigning the address - to ensure the callback can use dhcp_supplied_address() */ - dhcp_set_state(dhcp, DHCP_STATE_BOUND); - - netif_set_addr(netif, &dhcp->offered_ip_addr, &sn_mask, &gw_addr); - /* interface is used by routing now that an address is set */ -} - -/** - * @ingroup dhcp4 - * Renew an existing DHCP lease at the involved DHCP server. - * - * @param netif network interface which must renew its lease - */ -err_t -dhcp_renew(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - err_t result; - u16_t msecs; - u8_t i; - struct pbuf *p_out; - u16_t options_out_len; - - LWIP_ASSERT_CORE_LOCKED(); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_renew()\n")); - dhcp_set_state(dhcp, DHCP_STATE_RENEWING); - - /* create and initialize the DHCP message header */ - p_out = dhcp_create_msg(netif, dhcp, DHCP_REQUEST, &options_out_len); - if (p_out != NULL) { - struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); - options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN(netif)); - - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_PARAMETER_REQUEST_LIST, LWIP_ARRAYSIZE(dhcp_discover_request_options)); - for (i = 0; i < LWIP_ARRAYSIZE(dhcp_discover_request_options); i++) { - options_out_len = dhcp_option_byte(options_out_len, msg_out->options, dhcp_discover_request_options[i]); - } - -#if LWIP_NETIF_HOSTNAME - options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif); -#endif /* LWIP_NETIF_HOSTNAME */ - - LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_RENEWING, msg_out, DHCP_REQUEST, &options_out_len); - dhcp_option_trailer(options_out_len, msg_out->options, p_out); - - result = udp_sendto_if(dhcp_pcb, p_out, &dhcp->server_ip_addr, LWIP_IANA_PORT_DHCP_SERVER, netif); - pbuf_free(p_out); - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_renew: RENEWING\n")); - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_renew: could not allocate DHCP request\n")); - result = ERR_MEM; - } - if (dhcp->tries < 255) { - dhcp->tries++; - } - /* back-off on retries, but to a maximum of 20 seconds */ - msecs = (u16_t)(dhcp->tries < 10 ? dhcp->tries * 2000 : 20 * 1000); - dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_renew(): set request timeout %"U16_F" msecs\n", msecs)); - return result; -} - -/** - * Rebind with a DHCP server for an existing DHCP lease. - * - * @param netif network interface which must rebind with a DHCP server - */ -static err_t -dhcp_rebind(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - err_t result; - u16_t msecs; - u8_t i; - struct pbuf *p_out; - u16_t options_out_len; - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_rebind()\n")); - dhcp_set_state(dhcp, DHCP_STATE_REBINDING); - - /* create and initialize the DHCP message header */ - p_out = dhcp_create_msg(netif, dhcp, DHCP_REQUEST, &options_out_len); - if (p_out != NULL) { - struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); - options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN(netif)); - - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_PARAMETER_REQUEST_LIST, LWIP_ARRAYSIZE(dhcp_discover_request_options)); - for (i = 0; i < LWIP_ARRAYSIZE(dhcp_discover_request_options); i++) { - options_out_len = dhcp_option_byte(options_out_len, msg_out->options, dhcp_discover_request_options[i]); - } - -#if LWIP_NETIF_HOSTNAME - options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif); -#endif /* LWIP_NETIF_HOSTNAME */ - - LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_REBINDING, msg_out, DHCP_DISCOVER, &options_out_len); - dhcp_option_trailer(options_out_len, msg_out->options, p_out); - - /* broadcast to server */ - result = udp_sendto_if(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif); - pbuf_free(p_out); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_rebind: REBINDING\n")); - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_rebind: could not allocate DHCP request\n")); - result = ERR_MEM; - } - if (dhcp->tries < 255) { - dhcp->tries++; - } - msecs = (u16_t)(dhcp->tries < 10 ? dhcp->tries * 1000 : 10 * 1000); - dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_rebind(): set request timeout %"U16_F" msecs\n", msecs)); - return result; -} - -/** - * Enter REBOOTING state to verify an existing lease - * - * @param netif network interface which must reboot - */ -static err_t -dhcp_reboot(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - err_t result; - u16_t msecs; - u8_t i; - struct pbuf *p_out; - u16_t options_out_len; - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_reboot()\n")); - dhcp_set_state(dhcp, DHCP_STATE_REBOOTING); - - /* create and initialize the DHCP message header */ - p_out = dhcp_create_msg(netif, dhcp, DHCP_REQUEST, &options_out_len); - if (p_out != NULL) { - struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN); - options_out_len = dhcp_option_short(options_out_len, msg_out->options, DHCP_MAX_MSG_LEN_MIN_REQUIRED); - - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_REQUESTED_IP, 4); - options_out_len = dhcp_option_long(options_out_len, msg_out->options, lwip_ntohl(ip4_addr_get_u32(&dhcp->offered_ip_addr))); - - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_PARAMETER_REQUEST_LIST, LWIP_ARRAYSIZE(dhcp_discover_request_options)); - for (i = 0; i < LWIP_ARRAYSIZE(dhcp_discover_request_options); i++) { - options_out_len = dhcp_option_byte(options_out_len, msg_out->options, dhcp_discover_request_options[i]); - } - -#if LWIP_NETIF_HOSTNAME - options_out_len = dhcp_option_hostname(options_out_len, msg_out->options, netif); -#endif /* LWIP_NETIF_HOSTNAME */ - - LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, DHCP_STATE_REBOOTING, msg_out, DHCP_REQUEST, &options_out_len); - dhcp_option_trailer(options_out_len, msg_out->options, p_out); - - /* broadcast to server */ - result = udp_sendto_if(dhcp_pcb, p_out, IP_ADDR_BROADCAST, LWIP_IANA_PORT_DHCP_SERVER, netif); - pbuf_free(p_out); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_reboot: REBOOTING\n")); - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_reboot: could not allocate DHCP request\n")); - result = ERR_MEM; - } - if (dhcp->tries < 255) { - dhcp->tries++; - } - msecs = (u16_t)(dhcp->tries < 10 ? dhcp->tries * 1000 : 10 * 1000); - dhcp->request_timeout = (u16_t)((msecs + DHCP_FINE_TIMER_MSECS - 1) / DHCP_FINE_TIMER_MSECS); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_reboot(): set request timeout %"U16_F" msecs\n", msecs)); - return result; -} - -/** - * @ingroup dhcp4 - * Release a DHCP lease and stop DHCP statemachine (and AUTOIP if LWIP_DHCP_AUTOIP_COOP). - * - * @param netif network interface - */ -void -dhcp_release_and_stop(struct netif *netif) -{ - struct dhcp *dhcp = netif_dhcp_data(netif); - ip_addr_t server_ip_addr; - - LWIP_ASSERT_CORE_LOCKED(); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_release_and_stop()\n")); - if (dhcp == NULL) { - return; - } - - /* already off? -> nothing to do */ - if (dhcp->state == DHCP_STATE_OFF) { - return; - } - - ip_addr_copy(server_ip_addr, dhcp->server_ip_addr); - - /* clean old DHCP offer */ - ip_addr_set_zero_ip4(&dhcp->server_ip_addr); - ip4_addr_set_zero(&dhcp->offered_ip_addr); - ip4_addr_set_zero(&dhcp->offered_sn_mask); - ip4_addr_set_zero(&dhcp->offered_gw_addr); -#if LWIP_DHCP_BOOTP_FILE - ip4_addr_set_zero(&dhcp->offered_si_addr); -#endif /* LWIP_DHCP_BOOTP_FILE */ - dhcp->offered_t0_lease = dhcp->offered_t1_renew = dhcp->offered_t2_rebind = 0; - dhcp->t1_renew_time = dhcp->t2_rebind_time = dhcp->lease_used = dhcp->t0_timeout = 0; - - /* send release message when current IP was assigned via DHCP */ - if (dhcp_supplied_address(netif)) { - /* create and initialize the DHCP message header */ - struct pbuf *p_out; - u16_t options_out_len; - p_out = dhcp_create_msg(netif, dhcp, DHCP_RELEASE, &options_out_len); - if (p_out != NULL) { - struct dhcp_msg *msg_out = (struct dhcp_msg *)p_out->payload; - options_out_len = dhcp_option(options_out_len, msg_out->options, DHCP_OPTION_SERVER_ID, 4); - options_out_len = dhcp_option_long(options_out_len, msg_out->options, lwip_ntohl(ip4_addr_get_u32(ip_2_ip4(&server_ip_addr)))); - - LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, dhcp->state, msg_out, DHCP_RELEASE, &options_out_len); - dhcp_option_trailer(options_out_len, msg_out->options, p_out); - - udp_sendto_if(dhcp_pcb, p_out, &server_ip_addr, LWIP_IANA_PORT_DHCP_SERVER, netif); - pbuf_free(p_out); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp_release: RELEASED, DHCP_STATE_OFF\n")); - } else { - /* sending release failed, but that's not a problem since the correct behaviour of dhcp does not rely on release */ - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp_release: could not allocate DHCP request\n")); - } - } - - /* remove IP address from interface (prevents routing from selecting this interface) */ - netif_set_addr(netif, IP4_ADDR_ANY4, IP4_ADDR_ANY4, IP4_ADDR_ANY4); - -#if LWIP_DHCP_AUTOIP_COOP - if (dhcp->autoip_coop_state == DHCP_AUTOIP_COOP_STATE_ON) { - autoip_stop(netif); - dhcp->autoip_coop_state = DHCP_AUTOIP_COOP_STATE_OFF; - } -#endif /* LWIP_DHCP_AUTOIP_COOP */ - - dhcp_set_state(dhcp, DHCP_STATE_OFF); - - if (dhcp->pcb_allocated != 0) { - dhcp_dec_pcb_refcount(); /* free DHCP PCB if not needed any more */ - dhcp->pcb_allocated = 0; - } -} - -/** - * @ingroup dhcp4 - * This function calls dhcp_release_and_stop() internally. - * @deprecated Use dhcp_release_and_stop() instead. - */ -err_t -dhcp_release(struct netif *netif) -{ - dhcp_release_and_stop(netif); - return ERR_OK; -} - -/** - * @ingroup dhcp4 - * This function calls dhcp_release_and_stop() internally. - * @deprecated Use dhcp_release_and_stop() instead. - */ -void -dhcp_stop(struct netif *netif) -{ - dhcp_release_and_stop(netif); -} - -/* - * Set the DHCP state of a DHCP client. - * - * If the state changed, reset the number of tries. - */ -static void -dhcp_set_state(struct dhcp *dhcp, u8_t new_state) -{ - if (new_state != dhcp->state) { - dhcp->state = new_state; - dhcp->tries = 0; - dhcp->request_timeout = 0; - } -} - -/* - * Concatenate an option type and length field to the outgoing - * DHCP message. - * - */ -static u16_t -dhcp_option(u16_t options_out_len, u8_t *options, u8_t option_type, u8_t option_len) -{ - LWIP_ASSERT("dhcp_option: options_out_len + 2 + option_len <= DHCP_OPTIONS_LEN", options_out_len + 2U + option_len <= DHCP_OPTIONS_LEN); - options[options_out_len++] = option_type; - options[options_out_len++] = option_len; - return options_out_len; -} -/* - * Concatenate a single byte to the outgoing DHCP message. - * - */ -static u16_t -dhcp_option_byte(u16_t options_out_len, u8_t *options, u8_t value) -{ - LWIP_ASSERT("dhcp_option_byte: options_out_len < DHCP_OPTIONS_LEN", options_out_len < DHCP_OPTIONS_LEN); - options[options_out_len++] = value; - return options_out_len; -} - -static u16_t -dhcp_option_short(u16_t options_out_len, u8_t *options, u16_t value) -{ - LWIP_ASSERT("dhcp_option_short: options_out_len + 2 <= DHCP_OPTIONS_LEN", options_out_len + 2U <= DHCP_OPTIONS_LEN); - options[options_out_len++] = (u8_t)((value & 0xff00U) >> 8); - options[options_out_len++] = (u8_t) (value & 0x00ffU); - return options_out_len; -} - -static u16_t -dhcp_option_long(u16_t options_out_len, u8_t *options, u32_t value) -{ - LWIP_ASSERT("dhcp_option_long: options_out_len + 4 <= DHCP_OPTIONS_LEN", options_out_len + 4U <= DHCP_OPTIONS_LEN); - options[options_out_len++] = (u8_t)((value & 0xff000000UL) >> 24); - options[options_out_len++] = (u8_t)((value & 0x00ff0000UL) >> 16); - options[options_out_len++] = (u8_t)((value & 0x0000ff00UL) >> 8); - options[options_out_len++] = (u8_t)((value & 0x000000ffUL)); - return options_out_len; -} - -#if LWIP_NETIF_HOSTNAME -static u16_t -dhcp_option_hostname(u16_t options_out_len, u8_t *options, struct netif *netif) -{ - if (netif->hostname != NULL) { - size_t namelen = strlen(netif->hostname); - if (namelen > 0) { - size_t len; - const char *p = netif->hostname; - /* Shrink len to available bytes (need 2 bytes for OPTION_HOSTNAME - and 1 byte for trailer) */ - size_t available = DHCP_OPTIONS_LEN - options_out_len - 3; - LWIP_ASSERT("DHCP: hostname is too long!", namelen <= available); - len = LWIP_MIN(namelen, available); - LWIP_ASSERT("DHCP: hostname is too long!", len <= 0xFF); - options_out_len = dhcp_option(options_out_len, options, DHCP_OPTION_HOSTNAME, (u8_t)len); - while (len--) { - options_out_len = dhcp_option_byte(options_out_len, options, *p++); - } - } - } - return options_out_len; -} -#endif /* LWIP_NETIF_HOSTNAME */ - -/** - * Extract the DHCP message and the DHCP options. - * - * Extract the DHCP message and the DHCP options, each into a contiguous - * piece of memory. As a DHCP message is variable sized by its options, - * and also allows overriding some fields for options, the easy approach - * is to first unfold the options into a contiguous piece of memory, and - * use that further on. - * - */ -static err_t -dhcp_parse_reply(struct pbuf *p, struct dhcp *dhcp) -{ - u8_t *options; - u16_t offset; - u16_t offset_max; - u16_t options_idx; - u16_t options_idx_max; - struct pbuf *q; - int parse_file_as_options = 0; - int parse_sname_as_options = 0; - struct dhcp_msg *msg_in; -#if LWIP_DHCP_BOOTP_FILE - int file_overloaded = 0; -#endif - - LWIP_UNUSED_ARG(dhcp); - - /* clear received options */ - dhcp_clear_all_options(dhcp); - /* check that beginning of dhcp_msg (up to and including chaddr) is in first pbuf */ - if (p->len < DHCP_SNAME_OFS) { - return ERR_BUF; - } - msg_in = (struct dhcp_msg *)p->payload; -#if LWIP_DHCP_BOOTP_FILE - /* clear boot file name */ - dhcp->boot_file_name[0] = 0; -#endif /* LWIP_DHCP_BOOTP_FILE */ - - /* parse options */ - - /* start with options field */ - options_idx = DHCP_OPTIONS_OFS; - /* parse options to the end of the received packet */ - options_idx_max = p->tot_len; -again: - q = p; - while ((q != NULL) && (options_idx >= q->len)) { - options_idx = (u16_t)(options_idx - q->len); - options_idx_max = (u16_t)(options_idx_max - q->len); - q = q->next; - } - if (q == NULL) { - return ERR_BUF; - } - offset = options_idx; - offset_max = options_idx_max; - options = (u8_t *)q->payload; - /* at least 1 byte to read and no end marker, then at least 3 bytes to read? */ - while ((q != NULL) && (offset < offset_max) && (options[offset] != DHCP_OPTION_END)) { - u8_t op = options[offset]; - u8_t len; - u8_t decode_len = 0; - int decode_idx = -1; - u16_t val_offset = (u16_t)(offset + 2); - if (val_offset < offset) { - /* overflow */ - return ERR_BUF; - } - /* len byte might be in the next pbuf */ - if ((offset + 1) < q->len) { - len = options[offset + 1]; - } else { - len = (q->next != NULL ? ((u8_t *)q->next->payload)[0] : 0); - } - /* LWIP_DEBUGF(DHCP_DEBUG, ("msg_offset=%"U16_F", q->len=%"U16_F, msg_offset, q->len)); */ - decode_len = len; - switch (op) { - /* case(DHCP_OPTION_END): handled above */ - case (DHCP_OPTION_PAD): - /* special option: no len encoded */ - decode_len = len = 0; - /* will be increased below */ - break; - case (DHCP_OPTION_SUBNET_MASK): - LWIP_ERROR("len == 4", len == 4, return ERR_VAL;); - decode_idx = DHCP_OPTION_IDX_SUBNET_MASK; - break; - case (DHCP_OPTION_ROUTER): - decode_len = 4; /* only copy the first given router */ - LWIP_ERROR("len >= decode_len", len >= decode_len, return ERR_VAL;); - decode_idx = DHCP_OPTION_IDX_ROUTER; - break; -#if LWIP_DHCP_PROVIDE_DNS_SERVERS - case (DHCP_OPTION_DNS_SERVER): - /* special case: there might be more than one server */ - LWIP_ERROR("len %% 4 == 0", len % 4 == 0, return ERR_VAL;); - /* limit number of DNS servers */ - decode_len = LWIP_MIN(len, 4 * DNS_MAX_SERVERS); - LWIP_ERROR("len >= decode_len", len >= decode_len, return ERR_VAL;); - decode_idx = DHCP_OPTION_IDX_DNS_SERVER; - break; -#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS */ - case (DHCP_OPTION_LEASE_TIME): - LWIP_ERROR("len == 4", len == 4, return ERR_VAL;); - decode_idx = DHCP_OPTION_IDX_LEASE_TIME; - break; -#if LWIP_DHCP_GET_NTP_SRV - case (DHCP_OPTION_NTP): - /* special case: there might be more than one server */ - LWIP_ERROR("len %% 4 == 0", len % 4 == 0, return ERR_VAL;); - /* limit number of NTP servers */ - decode_len = LWIP_MIN(len, 4 * LWIP_DHCP_MAX_NTP_SERVERS); - LWIP_ERROR("len >= decode_len", len >= decode_len, return ERR_VAL;); - decode_idx = DHCP_OPTION_IDX_NTP_SERVER; - break; -#endif /* LWIP_DHCP_GET_NTP_SRV*/ - case (DHCP_OPTION_OVERLOAD): - LWIP_ERROR("len == 1", len == 1, return ERR_VAL;); - /* decode overload only in options, not in file/sname: invalid packet */ - LWIP_ERROR("overload in file/sname", options_idx == DHCP_OPTIONS_OFS, return ERR_VAL;); - decode_idx = DHCP_OPTION_IDX_OVERLOAD; - break; - case (DHCP_OPTION_MESSAGE_TYPE): - LWIP_ERROR("len == 1", len == 1, return ERR_VAL;); - decode_idx = DHCP_OPTION_IDX_MSG_TYPE; - break; - case (DHCP_OPTION_SERVER_ID): - LWIP_ERROR("len == 4", len == 4, return ERR_VAL;); - decode_idx = DHCP_OPTION_IDX_SERVER_ID; - break; - case (DHCP_OPTION_T1): - LWIP_ERROR("len == 4", len == 4, return ERR_VAL;); - decode_idx = DHCP_OPTION_IDX_T1; - break; - case (DHCP_OPTION_T2): - LWIP_ERROR("len == 4", len == 4, return ERR_VAL;); - decode_idx = DHCP_OPTION_IDX_T2; - break; - default: - decode_len = 0; - LWIP_DEBUGF(DHCP_DEBUG, ("skipping option %"U16_F" in options\n", (u16_t)op)); - LWIP_HOOK_DHCP_PARSE_OPTION(ip_current_netif(), dhcp, dhcp->state, msg_in, - dhcp_option_given(dhcp, DHCP_OPTION_IDX_MSG_TYPE) ? (u8_t)dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_MSG_TYPE) : 0, - op, len, q, val_offset); - break; - } - if (op == DHCP_OPTION_PAD) { - offset++; - } else { - if (offset + len + 2 > 0xFFFF) { - /* overflow */ - return ERR_BUF; - } - offset = (u16_t)(offset + len + 2); - if (decode_len > 0) { - u32_t value = 0; - u16_t copy_len; -decode_next: - LWIP_ASSERT("check decode_idx", decode_idx >= 0 && decode_idx < DHCP_OPTION_IDX_MAX); - if (!dhcp_option_given(dhcp, decode_idx)) { - copy_len = LWIP_MIN(decode_len, 4); - if (pbuf_copy_partial(q, &value, copy_len, val_offset) != copy_len) { - return ERR_BUF; - } - if (decode_len > 4) { - /* decode more than one u32_t */ - u16_t next_val_offset; - LWIP_ERROR("decode_len %% 4 == 0", decode_len % 4 == 0, return ERR_VAL;); - dhcp_got_option(dhcp, decode_idx); - dhcp_set_option_value(dhcp, decode_idx, lwip_htonl(value)); - decode_len = (u8_t)(decode_len - 4); - next_val_offset = (u16_t)(val_offset + 4); - if (next_val_offset < val_offset) { - /* overflow */ - return ERR_BUF; - } - val_offset = next_val_offset; - decode_idx++; - goto decode_next; - } else if (decode_len == 4) { - value = lwip_ntohl(value); - } else { - LWIP_ERROR("invalid decode_len", decode_len == 1, return ERR_VAL;); - value = ((u8_t *)&value)[0]; - } - dhcp_got_option(dhcp, decode_idx); - dhcp_set_option_value(dhcp, decode_idx, value); - } - } - } - if (offset >= q->len) { - offset = (u16_t)(offset - q->len); - offset_max = (u16_t)(offset_max - q->len); - if (offset < offset_max) { - q = q->next; - LWIP_ERROR("next pbuf was null", q != NULL, return ERR_VAL;); - options = (u8_t *)q->payload; - } else { - /* We've run out of bytes, probably no end marker. Don't proceed. */ - return ERR_BUF; - } - } - } - /* is this an overloaded message? */ - if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_OVERLOAD)) { - u32_t overload = dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_OVERLOAD); - dhcp_clear_option(dhcp, DHCP_OPTION_IDX_OVERLOAD); - if (overload == DHCP_OVERLOAD_FILE) { - parse_file_as_options = 1; - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("overloaded file field\n")); - } else if (overload == DHCP_OVERLOAD_SNAME) { - parse_sname_as_options = 1; - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("overloaded sname field\n")); - } else if (overload == DHCP_OVERLOAD_SNAME_FILE) { - parse_sname_as_options = 1; - parse_file_as_options = 1; - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("overloaded sname and file field\n")); - } else { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("invalid overload option: %d\n", (int)overload)); - } - } - if (parse_file_as_options) { - /* if both are overloaded, parse file first and then sname (RFC 2131 ch. 4.1) */ - parse_file_as_options = 0; - options_idx = DHCP_FILE_OFS; - options_idx_max = DHCP_FILE_OFS + DHCP_FILE_LEN; -#if LWIP_DHCP_BOOTP_FILE - file_overloaded = 1; -#endif - goto again; - } else if (parse_sname_as_options) { - parse_sname_as_options = 0; - options_idx = DHCP_SNAME_OFS; - options_idx_max = DHCP_SNAME_OFS + DHCP_SNAME_LEN; - goto again; - } -#if LWIP_DHCP_BOOTP_FILE - if (!file_overloaded) { - /* only do this for ACK messages */ - if (dhcp_option_given(dhcp, DHCP_OPTION_IDX_MSG_TYPE) && - (dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_MSG_TYPE) == DHCP_ACK)) - /* copy bootp file name, don't care for sname (server hostname) */ - if (pbuf_copy_partial(p, dhcp->boot_file_name, DHCP_FILE_LEN-1, DHCP_FILE_OFS) != (DHCP_FILE_LEN-1)) { - return ERR_BUF; - } - /* make sure the string is really NULL-terminated */ - dhcp->boot_file_name[DHCP_FILE_LEN-1] = 0; - } -#endif /* LWIP_DHCP_BOOTP_FILE */ - return ERR_OK; -} - -/** - * If an incoming DHCP message is in response to us, then trigger the state machine - */ -static void -dhcp_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) -{ - struct netif *netif = ip_current_input_netif(); - struct dhcp *dhcp = netif_dhcp_data(netif); - struct dhcp_msg *reply_msg = (struct dhcp_msg *)p->payload; - u8_t msg_type; - u8_t i; - struct dhcp_msg *msg_in; - - LWIP_UNUSED_ARG(arg); - - /* Caught DHCP message from netif that does not have DHCP enabled? -> not interested */ - if ((dhcp == NULL) || (dhcp->pcb_allocated == 0)) { - goto free_pbuf_and_return; - } - - LWIP_ASSERT("invalid server address type", IP_IS_V4(addr)); - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_recv(pbuf = %p) from DHCP server %"U16_F".%"U16_F".%"U16_F".%"U16_F" port %"U16_F"\n", (void *)p, - ip4_addr1_16(ip_2_ip4(addr)), ip4_addr2_16(ip_2_ip4(addr)), ip4_addr3_16(ip_2_ip4(addr)), ip4_addr4_16(ip_2_ip4(addr)), port)); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("pbuf->len = %"U16_F"\n", p->len)); - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("pbuf->tot_len = %"U16_F"\n", p->tot_len)); - /* prevent warnings about unused arguments */ - LWIP_UNUSED_ARG(pcb); - LWIP_UNUSED_ARG(addr); - LWIP_UNUSED_ARG(port); - - if (p->len < DHCP_MIN_REPLY_LEN) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("DHCP reply message or pbuf too short\n")); - goto free_pbuf_and_return; - } - - if (reply_msg->op != DHCP_BOOTREPLY) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("not a DHCP reply message, but type %"U16_F"\n", (u16_t)reply_msg->op)); - goto free_pbuf_and_return; - } - /* iterate through hardware address and match against DHCP message */ - for (i = 0; i < netif->hwaddr_len && i < LWIP_MIN(DHCP_CHADDR_LEN, NETIF_MAX_HWADDR_LEN); i++) { - if (netif->hwaddr[i] != reply_msg->chaddr[i]) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, - ("netif->hwaddr[%"U16_F"]==%02"X16_F" != reply_msg->chaddr[%"U16_F"]==%02"X16_F"\n", - (u16_t)i, (u16_t)netif->hwaddr[i], (u16_t)i, (u16_t)reply_msg->chaddr[i])); - goto free_pbuf_and_return; - } - } - /* match transaction ID against what we expected */ - if (lwip_ntohl(reply_msg->xid) != dhcp->xid) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, - ("transaction id mismatch reply_msg->xid(%"X32_F")!=dhcp->xid(%"X32_F")\n", lwip_ntohl(reply_msg->xid), dhcp->xid)); - goto free_pbuf_and_return; - } - /* option fields could be unfold? */ - if (dhcp_parse_reply(p, dhcp) != ERR_OK) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, - ("problem unfolding DHCP message - too short on memory?\n")); - goto free_pbuf_and_return; - } - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("searching DHCP_OPTION_MESSAGE_TYPE\n")); - /* obtain pointer to DHCP message type */ - if (!dhcp_option_given(dhcp, DHCP_OPTION_IDX_MSG_TYPE)) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("DHCP_OPTION_MESSAGE_TYPE option not found\n")); - goto free_pbuf_and_return; - } - - msg_in = (struct dhcp_msg *)p->payload; - /* read DHCP message type */ - msg_type = (u8_t)dhcp_get_option_value(dhcp, DHCP_OPTION_IDX_MSG_TYPE); - /* message type is DHCP ACK? */ - if (msg_type == DHCP_ACK) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("DHCP_ACK received\n")); - /* in requesting state? */ - if (dhcp->state == DHCP_STATE_REQUESTING) { - dhcp_handle_ack(netif, msg_in); -#if DHCP_DOES_ARP_CHECK - if ((netif->flags & NETIF_FLAG_ETHARP) != 0) { - /* check if the acknowledged lease address is already in use */ - dhcp_check(netif); - } else { - /* bind interface to the acknowledged lease address */ - dhcp_bind(netif); - } -#else - /* bind interface to the acknowledged lease address */ - dhcp_bind(netif); -#endif - } - /* already bound to the given lease address? */ - else if ((dhcp->state == DHCP_STATE_REBOOTING) || (dhcp->state == DHCP_STATE_REBINDING) || - (dhcp->state == DHCP_STATE_RENEWING)) { - dhcp_handle_ack(netif, msg_in); - dhcp_bind(netif); - } - } - /* received a DHCP_NAK in appropriate state? */ - else if ((msg_type == DHCP_NAK) && - ((dhcp->state == DHCP_STATE_REBOOTING) || (dhcp->state == DHCP_STATE_REQUESTING) || - (dhcp->state == DHCP_STATE_REBINDING) || (dhcp->state == DHCP_STATE_RENEWING ))) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("DHCP_NAK received\n")); - dhcp_handle_nak(netif); - } - /* received a DHCP_OFFER in DHCP_STATE_SELECTING state? */ - else if ((msg_type == DHCP_OFFER) && (dhcp->state == DHCP_STATE_SELECTING)) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("DHCP_OFFER received in DHCP_STATE_SELECTING state\n")); - /* remember offered lease */ - dhcp_handle_offer(netif, msg_in); - } - -free_pbuf_and_return: - pbuf_free(p); -} - -/** - * Create a DHCP request, fill in common headers - * - * @param netif the netif under DHCP control - * @param dhcp dhcp control struct - * @param message_type message type of the request - */ -static struct pbuf * -dhcp_create_msg(struct netif *netif, struct dhcp *dhcp, u8_t message_type, u16_t *options_out_len) -{ - u16_t i; - struct pbuf *p_out; - struct dhcp_msg *msg_out; - u16_t options_out_len_loc; - -#ifndef DHCP_GLOBAL_XID - /** default global transaction identifier starting value (easy to match - * with a packet analyser). We simply increment for each new request. - * Predefine DHCP_GLOBAL_XID to a better value or a function call to generate one - * at runtime, any supporting function prototypes can be defined in DHCP_GLOBAL_XID_HEADER */ -#if DHCP_CREATE_RAND_XID && defined(LWIP_RAND) - static u32_t xid; -#else /* DHCP_CREATE_RAND_XID && defined(LWIP_RAND) */ - static u32_t xid = 0xABCD0000; -#endif /* DHCP_CREATE_RAND_XID && defined(LWIP_RAND) */ -#else - if (!xid_initialised) { - xid = DHCP_GLOBAL_XID; - xid_initialised = !xid_initialised; - } -#endif - LWIP_ERROR("dhcp_create_msg: netif != NULL", (netif != NULL), return NULL;); - LWIP_ERROR("dhcp_create_msg: dhcp != NULL", (dhcp != NULL), return NULL;); - p_out = pbuf_alloc(PBUF_TRANSPORT, sizeof(struct dhcp_msg), PBUF_RAM); - if (p_out == NULL) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, - ("dhcp_create_msg(): could not allocate pbuf\n")); - return NULL; - } - LWIP_ASSERT("dhcp_create_msg: check that first pbuf can hold struct dhcp_msg", - (p_out->len >= sizeof(struct dhcp_msg))); - - /* DHCP_REQUEST should reuse 'xid' from DHCPOFFER */ - if ((message_type != DHCP_REQUEST) || (dhcp->state == DHCP_STATE_REBOOTING)) { - /* reuse transaction identifier in retransmissions */ - if (dhcp->tries == 0) { -#if DHCP_CREATE_RAND_XID && defined(LWIP_RAND) - xid = LWIP_RAND(); -#else /* DHCP_CREATE_RAND_XID && defined(LWIP_RAND) */ - xid++; -#endif /* DHCP_CREATE_RAND_XID && defined(LWIP_RAND) */ - } - dhcp->xid = xid; - } - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, - ("transaction id xid(%"X32_F")\n", xid)); - - msg_out = (struct dhcp_msg *)p_out->payload; - memset(msg_out, 0, sizeof(struct dhcp_msg)); - - msg_out->op = DHCP_BOOTREQUEST; - /* @todo: make link layer independent */ - msg_out->htype = LWIP_IANA_HWTYPE_ETHERNET; - msg_out->hlen = netif->hwaddr_len; - msg_out->xid = lwip_htonl(dhcp->xid); - /* we don't need the broadcast flag since we can receive unicast traffic - before being fully configured! */ - /* set ciaddr to netif->ip_addr based on message_type and state */ - if ((message_type == DHCP_INFORM) || (message_type == DHCP_DECLINE) || (message_type == DHCP_RELEASE) || - ((message_type == DHCP_REQUEST) && /* DHCP_STATE_BOUND not used for sending! */ - ((dhcp->state == DHCP_STATE_RENEWING) || dhcp->state == DHCP_STATE_REBINDING))) { - ip4_addr_copy(msg_out->ciaddr, *netif_ip4_addr(netif)); - } - for (i = 0; i < LWIP_MIN(DHCP_CHADDR_LEN, NETIF_MAX_HWADDR_LEN); i++) { - /* copy netif hardware address (padded with zeroes through memset already) */ - msg_out->chaddr[i] = netif->hwaddr[i]; - } - msg_out->cookie = PP_HTONL(DHCP_MAGIC_COOKIE); - /* Add option MESSAGE_TYPE */ - options_out_len_loc = dhcp_option(0, msg_out->options, DHCP_OPTION_MESSAGE_TYPE, DHCP_OPTION_MESSAGE_TYPE_LEN); - options_out_len_loc = dhcp_option_byte(options_out_len_loc, msg_out->options, message_type); - if (options_out_len) { - *options_out_len = options_out_len_loc; - } - return p_out; -} - -/** - * Add a DHCP message trailer - * - * Adds the END option to the DHCP message, and if - * necessary, up to three padding bytes. - */ -static void -dhcp_option_trailer(u16_t options_out_len, u8_t *options, struct pbuf *p_out) -{ - options[options_out_len++] = DHCP_OPTION_END; - /* packet is too small, or not 4 byte aligned? */ - while (((options_out_len < DHCP_MIN_OPTIONS_LEN) || (options_out_len & 3)) && - (options_out_len < DHCP_OPTIONS_LEN)) { - /* add a fill/padding byte */ - options[options_out_len++] = 0; - } - /* shrink the pbuf to the actual content length */ - pbuf_realloc(p_out, (u16_t)(sizeof(struct dhcp_msg) - DHCP_OPTIONS_LEN + options_out_len)); -} - -/** check if DHCP supplied netif->ip_addr - * - * @param netif the netif to check - * @return 1 if DHCP supplied netif->ip_addr (states BOUND or RENEWING), - * 0 otherwise - */ -u8_t -dhcp_supplied_address(const struct netif *netif) -{ - if ((netif != NULL) && (netif_dhcp_data(netif) != NULL)) { - struct dhcp *dhcp = netif_dhcp_data(netif); - return (dhcp->state == DHCP_STATE_BOUND) || (dhcp->state == DHCP_STATE_RENEWING) || - (dhcp->state == DHCP_STATE_REBINDING); - } - return 0; -} - -#endif /* LWIP_IPV4 && LWIP_DHCP */ diff --git a/core/c/core/ipv4/etharp.c b/core/c/core/ipv4/etharp.c deleted file mode 100755 index 570aaa3..0000000 --- a/core/c/core/ipv4/etharp.c +++ /dev/null @@ -1,1204 +0,0 @@ -/** - * @file - * Address Resolution Protocol module for IP over Ethernet - * - * Functionally, ARP is divided into two parts. The first maps an IP address - * to a physical address when sending a packet, and the second part answers - * requests from other machines for our physical address. - * - * This implementation complies with RFC 826 (Ethernet ARP). It supports - * Gratuitious ARP from RFC3220 (IP Mobility Support for IPv4) section 4.6 - * if an interface calls etharp_gratuitous(our_netif) upon address change. - */ - -/* - * Copyright (c) 2001-2003 Swedish Institute of Computer Science. - * Copyright (c) 2003-2004 Leon Woestenberg - * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV4 && LWIP_ARP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/etharp.h" -#include "lwip/stats.h" -#include "lwip/snmp.h" -#include "lwip/dhcp.h" -#include "lwip/autoip.h" -#include "lwip/prot/iana.h" -#include "netif/ethernet.h" - -#include - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif - -/** Re-request a used ARP entry 1 minute before it would expire to prevent - * breaking a steadily used connection because the ARP entry timed out. */ -#define ARP_AGE_REREQUEST_USED_UNICAST (ARP_MAXAGE - 30) -#define ARP_AGE_REREQUEST_USED_BROADCAST (ARP_MAXAGE - 15) - -/** the time an ARP entry stays pending after first request, - * for ARP_TMR_INTERVAL = 1000, this is - * 10 seconds. - * - * @internal Keep this number at least 2, otherwise it might - * run out instantly if the timeout occurs directly after a request. - */ -#define ARP_MAXPENDING 5 - -/** ARP states */ -enum etharp_state { - ETHARP_STATE_EMPTY = 0, - ETHARP_STATE_PENDING, - ETHARP_STATE_STABLE, - ETHARP_STATE_STABLE_REREQUESTING_1, - ETHARP_STATE_STABLE_REREQUESTING_2 -#if ETHARP_SUPPORT_STATIC_ENTRIES - , ETHARP_STATE_STATIC -#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ -}; - -struct etharp_entry { -#if ARP_QUEUEING - /** Pointer to queue of pending outgoing packets on this ARP entry. */ - struct etharp_q_entry *q; -#else /* ARP_QUEUEING */ - /** Pointer to a single pending outgoing packet on this ARP entry. */ - struct pbuf *q; -#endif /* ARP_QUEUEING */ - ip4_addr_t ipaddr; - struct netif *netif; - struct eth_addr ethaddr; - u16_t ctime; - u8_t state; -}; - -static struct etharp_entry arp_table[ARP_TABLE_SIZE]; - -#if !LWIP_NETIF_HWADDRHINT -static netif_addr_idx_t etharp_cached_entry; -#endif /* !LWIP_NETIF_HWADDRHINT */ - -/** Try hard to create a new entry - we want the IP address to appear in - the cache (even if this means removing an active entry or so). */ -#define ETHARP_FLAG_TRY_HARD 1 -#define ETHARP_FLAG_FIND_ONLY 2 -#if ETHARP_SUPPORT_STATIC_ENTRIES -#define ETHARP_FLAG_STATIC_ENTRY 4 -#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ - -#if LWIP_NETIF_HWADDRHINT -#define ETHARP_SET_ADDRHINT(netif, addrhint) do { if (((netif) != NULL) && ((netif)->hints != NULL)) { \ - (netif)->hints->addr_hint = (addrhint); }} while(0) -#else /* LWIP_NETIF_HWADDRHINT */ -#define ETHARP_SET_ADDRHINT(netif, addrhint) (etharp_cached_entry = (addrhint)) -#endif /* LWIP_NETIF_HWADDRHINT */ - - -/* Check for maximum ARP_TABLE_SIZE */ -#if (ARP_TABLE_SIZE > NETIF_ADDR_IDX_MAX) -#error "ARP_TABLE_SIZE must fit in an s16_t, you have to reduce it in your lwipopts.h" -#endif - - -static err_t etharp_request_dst(struct netif *netif, const ip4_addr_t *ipaddr, const struct eth_addr *hw_dst_addr); -static err_t etharp_raw(struct netif *netif, - const struct eth_addr *ethsrc_addr, const struct eth_addr *ethdst_addr, - const struct eth_addr *hwsrc_addr, const ip4_addr_t *ipsrc_addr, - const struct eth_addr *hwdst_addr, const ip4_addr_t *ipdst_addr, - const u16_t opcode); - -#if ARP_QUEUEING -/** - * Free a complete queue of etharp entries - * - * @param q a qeueue of etharp_q_entry's to free - */ -static void -free_etharp_q(struct etharp_q_entry *q) -{ - struct etharp_q_entry *r; - LWIP_ASSERT("q != NULL", q != NULL); - while (q) { - r = q; - q = q->next; - LWIP_ASSERT("r->p != NULL", (r->p != NULL)); - pbuf_free(r->p); - memp_free(MEMP_ARP_QUEUE, r); - } -} -#else /* ARP_QUEUEING */ - -/** Compatibility define: free the queued pbuf */ -#define free_etharp_q(q) pbuf_free(q) - -#endif /* ARP_QUEUEING */ - -/** Clean up ARP table entries */ -static void -etharp_free_entry(int i) -{ - /* remove from SNMP ARP index tree */ - mib2_remove_arp_entry(arp_table[i].netif, &arp_table[i].ipaddr); - /* and empty packet queue */ - if (arp_table[i].q != NULL) { - /* remove all queued packets */ - LWIP_DEBUGF(ETHARP_DEBUG, ("etharp_free_entry: freeing entry %"U16_F", packet queue %p.\n", (u16_t)i, (void *)(arp_table[i].q))); - free_etharp_q(arp_table[i].q); - arp_table[i].q = NULL; - } - /* recycle entry for re-use */ - arp_table[i].state = ETHARP_STATE_EMPTY; -#ifdef LWIP_DEBUG - /* for debugging, clean out the complete entry */ - arp_table[i].ctime = 0; - arp_table[i].netif = NULL; - ip4_addr_set_zero(&arp_table[i].ipaddr); - arp_table[i].ethaddr = ethzero; -#endif /* LWIP_DEBUG */ -} - -/** - * Clears expired entries in the ARP table. - * - * This function should be called every ARP_TMR_INTERVAL milliseconds (1 second), - * in order to expire entries in the ARP table. - */ -void -etharp_tmr(void) -{ - int i; - - LWIP_DEBUGF(ETHARP_DEBUG, ("etharp_timer\n")); - /* remove expired entries from the ARP table */ - for (i = 0; i < ARP_TABLE_SIZE; ++i) { - u8_t state = arp_table[i].state; - if (state != ETHARP_STATE_EMPTY -#if ETHARP_SUPPORT_STATIC_ENTRIES - && (state != ETHARP_STATE_STATIC) -#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ - ) { - arp_table[i].ctime++; - if ((arp_table[i].ctime >= ARP_MAXAGE) || - ((arp_table[i].state == ETHARP_STATE_PENDING) && - (arp_table[i].ctime >= ARP_MAXPENDING))) { - /* pending or stable entry has become old! */ - LWIP_DEBUGF(ETHARP_DEBUG, ("etharp_timer: expired %s entry %d.\n", - arp_table[i].state >= ETHARP_STATE_STABLE ? "stable" : "pending", i)); - /* clean up entries that have just been expired */ - etharp_free_entry(i); - } else if (arp_table[i].state == ETHARP_STATE_STABLE_REREQUESTING_1) { - /* Don't send more than one request every 2 seconds. */ - arp_table[i].state = ETHARP_STATE_STABLE_REREQUESTING_2; - } else if (arp_table[i].state == ETHARP_STATE_STABLE_REREQUESTING_2) { - /* Reset state to stable, so that the next transmitted packet will - re-send an ARP request. */ - arp_table[i].state = ETHARP_STATE_STABLE; - } else if (arp_table[i].state == ETHARP_STATE_PENDING) { - /* still pending, resend an ARP query */ - etharp_request(arp_table[i].netif, &arp_table[i].ipaddr); - } - } - } -} - -/** - * Search the ARP table for a matching or new entry. - * - * If an IP address is given, return a pending or stable ARP entry that matches - * the address. If no match is found, create a new entry with this address set, - * but in state ETHARP_EMPTY. The caller must check and possibly change the - * state of the returned entry. - * - * If ipaddr is NULL, return a initialized new entry in state ETHARP_EMPTY. - * - * In all cases, attempt to create new entries from an empty entry. If no - * empty entries are available and ETHARP_FLAG_TRY_HARD flag is set, recycle - * old entries. Heuristic choose the least important entry for recycling. - * - * @param ipaddr IP address to find in ARP cache, or to add if not found. - * @param flags See @ref etharp_state - * @param netif netif related to this address (used for NETIF_HWADDRHINT) - * - * @return The ARP entry index that matched or is created, ERR_MEM if no - * entry is found or could be recycled. - */ -static s16_t -etharp_find_entry(const ip4_addr_t *ipaddr, u8_t flags, struct netif *netif) -{ - s16_t old_pending = ARP_TABLE_SIZE, old_stable = ARP_TABLE_SIZE; - s16_t empty = ARP_TABLE_SIZE; - s16_t i = 0; - /* oldest entry with packets on queue */ - s16_t old_queue = ARP_TABLE_SIZE; - /* its age */ - u16_t age_queue = 0, age_pending = 0, age_stable = 0; - - LWIP_UNUSED_ARG(netif); - - /** - * a) do a search through the cache, remember candidates - * b) select candidate entry - * c) create new entry - */ - - /* a) in a single search sweep, do all of this - * 1) remember the first empty entry (if any) - * 2) remember the oldest stable entry (if any) - * 3) remember the oldest pending entry without queued packets (if any) - * 4) remember the oldest pending entry with queued packets (if any) - * 5) search for a matching IP entry, either pending or stable - * until 5 matches, or all entries are searched for. - */ - - for (i = 0; i < ARP_TABLE_SIZE; ++i) { - u8_t state = arp_table[i].state; - /* no empty entry found yet and now we do find one? */ - if ((empty == ARP_TABLE_SIZE) && (state == ETHARP_STATE_EMPTY)) { - LWIP_DEBUGF(ETHARP_DEBUG, ("etharp_find_entry: found empty entry %d\n", (int)i)); - /* remember first empty entry */ - empty = i; - } else if (state != ETHARP_STATE_EMPTY) { - LWIP_ASSERT("state == ETHARP_STATE_PENDING || state >= ETHARP_STATE_STABLE", - state == ETHARP_STATE_PENDING || state >= ETHARP_STATE_STABLE); - /* if given, does IP address match IP address in ARP entry? */ - if (ipaddr && ip4_addr_cmp(ipaddr, &arp_table[i].ipaddr) -#if ETHARP_TABLE_MATCH_NETIF - && ((netif == NULL) || (netif == arp_table[i].netif)) -#endif /* ETHARP_TABLE_MATCH_NETIF */ - ) { - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: found matching entry %d\n", (int)i)); - /* found exact IP address match, simply bail out */ - return i; - } - /* pending entry? */ - if (state == ETHARP_STATE_PENDING) { - /* pending with queued packets? */ - if (arp_table[i].q != NULL) { - if (arp_table[i].ctime >= age_queue) { - old_queue = i; - age_queue = arp_table[i].ctime; - } - } else - /* pending without queued packets? */ - { - if (arp_table[i].ctime >= age_pending) { - old_pending = i; - age_pending = arp_table[i].ctime; - } - } - /* stable entry? */ - } else if (state >= ETHARP_STATE_STABLE) { -#if ETHARP_SUPPORT_STATIC_ENTRIES - /* don't record old_stable for static entries since they never expire */ - if (state < ETHARP_STATE_STATIC) -#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ - { - /* remember entry with oldest stable entry in oldest, its age in maxtime */ - if (arp_table[i].ctime >= age_stable) { - old_stable = i; - age_stable = arp_table[i].ctime; - } - } - } - } - } - /* { we have no match } => try to create a new entry */ - - /* don't create new entry, only search? */ - if (((flags & ETHARP_FLAG_FIND_ONLY) != 0) || - /* or no empty entry found and not allowed to recycle? */ - ((empty == ARP_TABLE_SIZE) && ((flags & ETHARP_FLAG_TRY_HARD) == 0))) { - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: no empty entry found and not allowed to recycle\n")); - return (s16_t)ERR_MEM; - } - - /* b) choose the least destructive entry to recycle: - * 1) empty entry - * 2) oldest stable entry - * 3) oldest pending entry without queued packets - * 4) oldest pending entry with queued packets - * - * { ETHARP_FLAG_TRY_HARD is set at this point } - */ - - /* 1) empty entry available? */ - if (empty < ARP_TABLE_SIZE) { - i = empty; - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: selecting empty entry %d\n", (int)i)); - } else { - /* 2) found recyclable stable entry? */ - if (old_stable < ARP_TABLE_SIZE) { - /* recycle oldest stable*/ - i = old_stable; - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: selecting oldest stable entry %d\n", (int)i)); - /* no queued packets should exist on stable entries */ - LWIP_ASSERT("arp_table[i].q == NULL", arp_table[i].q == NULL); - /* 3) found recyclable pending entry without queued packets? */ - } else if (old_pending < ARP_TABLE_SIZE) { - /* recycle oldest pending */ - i = old_pending; - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: selecting oldest pending entry %d (without queue)\n", (int)i)); - /* 4) found recyclable pending entry with queued packets? */ - } else if (old_queue < ARP_TABLE_SIZE) { - /* recycle oldest pending (queued packets are free in etharp_free_entry) */ - i = old_queue; - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: selecting oldest pending entry %d, freeing packet queue %p\n", (int)i, (void *)(arp_table[i].q))); - /* no empty or recyclable entries found */ - } else { - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_find_entry: no empty or recyclable entries found\n")); - return (s16_t)ERR_MEM; - } - - /* { empty or recyclable entry found } */ - LWIP_ASSERT("i < ARP_TABLE_SIZE", i < ARP_TABLE_SIZE); - etharp_free_entry(i); - } - - LWIP_ASSERT("i < ARP_TABLE_SIZE", i < ARP_TABLE_SIZE); - LWIP_ASSERT("arp_table[i].state == ETHARP_STATE_EMPTY", - arp_table[i].state == ETHARP_STATE_EMPTY); - - /* IP address given? */ - if (ipaddr != NULL) { - /* set IP address */ - ip4_addr_copy(arp_table[i].ipaddr, *ipaddr); - } - arp_table[i].ctime = 0; -#if ETHARP_TABLE_MATCH_NETIF - arp_table[i].netif = netif; -#endif /* ETHARP_TABLE_MATCH_NETIF */ - return (s16_t)i; -} - -/** - * Update (or insert) a IP/MAC address pair in the ARP cache. - * - * If a pending entry is resolved, any queued packets will be sent - * at this point. - * - * @param netif netif related to this entry (used for NETIF_ADDRHINT) - * @param ipaddr IP address of the inserted ARP entry. - * @param ethaddr Ethernet address of the inserted ARP entry. - * @param flags See @ref etharp_state - * - * @return - * - ERR_OK Successfully updated ARP cache. - * - ERR_MEM If we could not add a new ARP entry when ETHARP_FLAG_TRY_HARD was set. - * - ERR_ARG Non-unicast address given, those will not appear in ARP cache. - * - * @see pbuf_free() - */ -static err_t -etharp_update_arp_entry(struct netif *netif, const ip4_addr_t *ipaddr, struct eth_addr *ethaddr, u8_t flags) -{ - s16_t i; - LWIP_ASSERT("netif->hwaddr_len == ETH_HWADDR_LEN", netif->hwaddr_len == ETH_HWADDR_LEN); - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_update_arp_entry: %"U16_F".%"U16_F".%"U16_F".%"U16_F" - %02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F"\n", - ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr), - (u16_t)ethaddr->addr[0], (u16_t)ethaddr->addr[1], (u16_t)ethaddr->addr[2], - (u16_t)ethaddr->addr[3], (u16_t)ethaddr->addr[4], (u16_t)ethaddr->addr[5])); - /* non-unicast address? */ - if (ip4_addr_isany(ipaddr) || - ip4_addr_isbroadcast(ipaddr, netif) || - ip4_addr_ismulticast(ipaddr)) { - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_update_arp_entry: will not add non-unicast IP address to ARP cache\n")); - return ERR_ARG; - } - /* find or create ARP entry */ - i = etharp_find_entry(ipaddr, flags, netif); - /* bail out if no entry could be found */ - if (i < 0) { - return (err_t)i; - } - -#if ETHARP_SUPPORT_STATIC_ENTRIES - if (flags & ETHARP_FLAG_STATIC_ENTRY) { - /* record static type */ - arp_table[i].state = ETHARP_STATE_STATIC; - } else if (arp_table[i].state == ETHARP_STATE_STATIC) { - /* found entry is a static type, don't overwrite it */ - return ERR_VAL; - } else -#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ - { - /* mark it stable */ - arp_table[i].state = ETHARP_STATE_STABLE; - } - - /* record network interface */ - arp_table[i].netif = netif; - /* insert in SNMP ARP index tree */ - mib2_add_arp_entry(netif, &arp_table[i].ipaddr); - - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_update_arp_entry: updating stable entry %"S16_F"\n", i)); - /* update address */ - SMEMCPY(&arp_table[i].ethaddr, ethaddr, ETH_HWADDR_LEN); - /* reset time stamp */ - arp_table[i].ctime = 0; - /* this is where we will send out queued packets! */ -#if ARP_QUEUEING - while (arp_table[i].q != NULL) { - struct pbuf *p; - /* remember remainder of queue */ - struct etharp_q_entry *q = arp_table[i].q; - /* pop first item off the queue */ - arp_table[i].q = q->next; - /* get the packet pointer */ - p = q->p; - /* now queue entry can be freed */ - memp_free(MEMP_ARP_QUEUE, q); -#else /* ARP_QUEUEING */ - if (arp_table[i].q != NULL) { - struct pbuf *p = arp_table[i].q; - arp_table[i].q = NULL; -#endif /* ARP_QUEUEING */ - /* send the queued IP packet */ - ethernet_output(netif, p, (struct eth_addr *)(netif->hwaddr), ethaddr, ETHTYPE_IP); - /* free the queued IP packet */ - pbuf_free(p); - } - return ERR_OK; -} - -#if ETHARP_SUPPORT_STATIC_ENTRIES -/** Add a new static entry to the ARP table. If an entry exists for the - * specified IP address, this entry is overwritten. - * If packets are queued for the specified IP address, they are sent out. - * - * @param ipaddr IP address for the new static entry - * @param ethaddr ethernet address for the new static entry - * @return See return values of etharp_add_static_entry - */ -err_t -etharp_add_static_entry(const ip4_addr_t *ipaddr, struct eth_addr *ethaddr) -{ - struct netif *netif; - LWIP_ASSERT_CORE_LOCKED(); - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_add_static_entry: %"U16_F".%"U16_F".%"U16_F".%"U16_F" - %02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F":%02"X16_F"\n", - ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr), - (u16_t)ethaddr->addr[0], (u16_t)ethaddr->addr[1], (u16_t)ethaddr->addr[2], - (u16_t)ethaddr->addr[3], (u16_t)ethaddr->addr[4], (u16_t)ethaddr->addr[5])); - - netif = ip4_route(ipaddr); - if (netif == NULL) { - return ERR_RTE; - } - - return etharp_update_arp_entry(netif, ipaddr, ethaddr, ETHARP_FLAG_TRY_HARD | ETHARP_FLAG_STATIC_ENTRY); -} - -/** Remove a static entry from the ARP table previously added with a call to - * etharp_add_static_entry. - * - * @param ipaddr IP address of the static entry to remove - * @return ERR_OK: entry removed - * ERR_MEM: entry wasn't found - * ERR_ARG: entry wasn't a static entry but a dynamic one - */ -err_t -etharp_remove_static_entry(const ip4_addr_t *ipaddr) -{ - s16_t i; - LWIP_ASSERT_CORE_LOCKED(); - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_remove_static_entry: %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - ip4_addr1_16(ipaddr), ip4_addr2_16(ipaddr), ip4_addr3_16(ipaddr), ip4_addr4_16(ipaddr))); - - /* find or create ARP entry */ - i = etharp_find_entry(ipaddr, ETHARP_FLAG_FIND_ONLY, NULL); - /* bail out if no entry could be found */ - if (i < 0) { - return (err_t)i; - } - - if (arp_table[i].state != ETHARP_STATE_STATIC) { - /* entry wasn't a static entry, cannot remove it */ - return ERR_ARG; - } - /* entry found, free it */ - etharp_free_entry(i); - return ERR_OK; -} -#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ - -/** - * Remove all ARP table entries of the specified netif. - * - * @param netif points to a network interface - */ -void -etharp_cleanup_netif(struct netif *netif) -{ - int i; - - for (i = 0; i < ARP_TABLE_SIZE; ++i) { - u8_t state = arp_table[i].state; - if ((state != ETHARP_STATE_EMPTY) && (arp_table[i].netif == netif)) { - etharp_free_entry(i); - } - } -} - -/** - * Finds (stable) ethernet/IP address pair from ARP table - * using interface and IP address index. - * @note the addresses in the ARP table are in network order! - * - * @param netif points to interface index - * @param ipaddr points to the (network order) IP address index - * @param eth_ret points to return pointer - * @param ip_ret points to return pointer - * @return table index if found, -1 otherwise - */ -ssize_t -etharp_find_addr(struct netif *netif, const ip4_addr_t *ipaddr, - struct eth_addr **eth_ret, const ip4_addr_t **ip_ret) -{ - s16_t i; - - LWIP_ASSERT("eth_ret != NULL && ip_ret != NULL", - eth_ret != NULL && ip_ret != NULL); - - LWIP_UNUSED_ARG(netif); - - i = etharp_find_entry(ipaddr, ETHARP_FLAG_FIND_ONLY, netif); - if ((i >= 0) && (arp_table[i].state >= ETHARP_STATE_STABLE)) { - *eth_ret = &arp_table[i].ethaddr; - *ip_ret = &arp_table[i].ipaddr; - return i; - } - return -1; -} - -/** - * Possibility to iterate over stable ARP table entries - * - * @param i entry number, 0 to ARP_TABLE_SIZE - * @param ipaddr return value: IP address - * @param netif return value: points to interface - * @param eth_ret return value: ETH address - * @return 1 on valid index, 0 otherwise - */ -int -etharp_get_entry(size_t i, ip4_addr_t **ipaddr, struct netif **netif, struct eth_addr **eth_ret) -{ - LWIP_ASSERT("ipaddr != NULL", ipaddr != NULL); - LWIP_ASSERT("netif != NULL", netif != NULL); - LWIP_ASSERT("eth_ret != NULL", eth_ret != NULL); - - if ((i < ARP_TABLE_SIZE) && (arp_table[i].state >= ETHARP_STATE_STABLE)) { - *ipaddr = &arp_table[i].ipaddr; - *netif = arp_table[i].netif; - *eth_ret = &arp_table[i].ethaddr; - return 1; - } else { - return 0; - } -} - -/** - * Responds to ARP requests to us. Upon ARP replies to us, add entry to cache - * send out queued IP packets. Updates cache with snooped address pairs. - * - * Should be called for incoming ARP packets. The pbuf in the argument - * is freed by this function. - * - * @param p The ARP packet that arrived on netif. Is freed by this function. - * @param netif The lwIP network interface on which the ARP packet pbuf arrived. - * - * @see pbuf_free() - */ -void -etharp_input(struct pbuf *p, struct netif *netif) -{ - struct etharp_hdr *hdr; - /* these are aligned properly, whereas the ARP header fields might not be */ - ip4_addr_t sipaddr, dipaddr; - u8_t for_us; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("netif != NULL", (netif != NULL), return;); - - hdr = (struct etharp_hdr *)p->payload; - - /* RFC 826 "Packet Reception": */ - if ((hdr->hwtype != PP_HTONS(LWIP_IANA_HWTYPE_ETHERNET)) || - (hdr->hwlen != ETH_HWADDR_LEN) || - (hdr->protolen != sizeof(ip4_addr_t)) || - (hdr->proto != PP_HTONS(ETHTYPE_IP))) { - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, - ("etharp_input: packet dropped, wrong hw type, hwlen, proto, protolen or ethernet type (%"U16_F"/%"U16_F"/%"U16_F"/%"U16_F")\n", - hdr->hwtype, (u16_t)hdr->hwlen, hdr->proto, (u16_t)hdr->protolen)); - ETHARP_STATS_INC(etharp.proterr); - ETHARP_STATS_INC(etharp.drop); - pbuf_free(p); - return; - } - ETHARP_STATS_INC(etharp.recv); - -#if LWIP_AUTOIP - /* We have to check if a host already has configured our random - * created link local address and continuously check if there is - * a host with this IP-address so we can detect collisions */ - autoip_arp_reply(netif, hdr); -#endif /* LWIP_AUTOIP */ - - /* Copy struct ip4_addr_wordaligned to aligned ip4_addr, to support compilers without - * structure packing (not using structure copy which breaks strict-aliasing rules). */ - IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(&sipaddr, &hdr->sipaddr); - IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(&dipaddr, &hdr->dipaddr); - - /* this interface is not configured? */ - if (ip4_addr_isany_val(*netif_ip4_addr(netif))) { - for_us = 0; - } else { - /* ARP packet directed to us? */ - for_us = (u8_t)ip4_addr_cmp(&dipaddr, netif_ip4_addr(netif)); - } - - /* ARP message directed to us? - -> add IP address in ARP cache; assume requester wants to talk to us, - can result in directly sending the queued packets for this host. - ARP message not directed to us? - -> update the source IP address in the cache, if present */ - etharp_update_arp_entry(netif, &sipaddr, &(hdr->shwaddr), - for_us ? ETHARP_FLAG_TRY_HARD : ETHARP_FLAG_FIND_ONLY); - - /* now act on the message itself */ - switch (hdr->opcode) { - /* ARP request? */ - case PP_HTONS(ARP_REQUEST): - /* ARP request. If it asked for our address, we send out a - * reply. In any case, we time-stamp any existing ARP entry, - * and possibly send out an IP packet that was queued on it. */ - - LWIP_DEBUGF (ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_input: incoming ARP request\n")); - /* ARP request for our address? */ - if (for_us) { - /* send ARP response */ - etharp_raw(netif, - (struct eth_addr *)netif->hwaddr, &hdr->shwaddr, - (struct eth_addr *)netif->hwaddr, netif_ip4_addr(netif), - &hdr->shwaddr, &sipaddr, - ARP_REPLY); - /* we are not configured? */ - } else if (ip4_addr_isany_val(*netif_ip4_addr(netif))) { - /* { for_us == 0 and netif->ip_addr.addr == 0 } */ - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_input: we are unconfigured, ARP request ignored.\n")); - /* request was not directed to us */ - } else { - /* { for_us == 0 and netif->ip_addr.addr != 0 } */ - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_input: ARP request was not for us.\n")); - } - break; - case PP_HTONS(ARP_REPLY): - /* ARP reply. We already updated the ARP cache earlier. */ - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_input: incoming ARP reply\n")); -#if (LWIP_DHCP && DHCP_DOES_ARP_CHECK) - /* DHCP wants to know about ARP replies from any host with an - * IP address also offered to us by the DHCP server. We do not - * want to take a duplicate IP address on a single network. - * @todo How should we handle redundant (fail-over) interfaces? */ - dhcp_arp_reply(netif, &sipaddr); -#endif /* (LWIP_DHCP && DHCP_DOES_ARP_CHECK) */ - break; - default: - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_input: ARP unknown opcode type %"S16_F"\n", lwip_htons(hdr->opcode))); - ETHARP_STATS_INC(etharp.err); - break; - } - /* free ARP packet */ - pbuf_free(p); -} - -/** Just a small helper function that sends a pbuf to an ethernet address - * in the arp_table specified by the index 'arp_idx'. - */ -static err_t -etharp_output_to_arp_index(struct netif *netif, struct pbuf *q, netif_addr_idx_t arp_idx) -{ - LWIP_ASSERT("arp_table[arp_idx].state >= ETHARP_STATE_STABLE", - arp_table[arp_idx].state >= ETHARP_STATE_STABLE); - /* if arp table entry is about to expire: re-request it, - but only if its state is ETHARP_STATE_STABLE to prevent flooding the - network with ARP requests if this address is used frequently. */ - if (arp_table[arp_idx].state == ETHARP_STATE_STABLE) { - if (arp_table[arp_idx].ctime >= ARP_AGE_REREQUEST_USED_BROADCAST) { - /* issue a standard request using broadcast */ - if (etharp_request(netif, &arp_table[arp_idx].ipaddr) == ERR_OK) { - arp_table[arp_idx].state = ETHARP_STATE_STABLE_REREQUESTING_1; - } - } else if (arp_table[arp_idx].ctime >= ARP_AGE_REREQUEST_USED_UNICAST) { - /* issue a unicast request (for 15 seconds) to prevent unnecessary broadcast */ - if (etharp_request_dst(netif, &arp_table[arp_idx].ipaddr, &arp_table[arp_idx].ethaddr) == ERR_OK) { - arp_table[arp_idx].state = ETHARP_STATE_STABLE_REREQUESTING_1; - } - } - } - - return ethernet_output(netif, q, (struct eth_addr *)(netif->hwaddr), &arp_table[arp_idx].ethaddr, ETHTYPE_IP); -} - -/** - * Resolve and fill-in Ethernet address header for outgoing IP packet. - * - * For IP multicast and broadcast, corresponding Ethernet addresses - * are selected and the packet is transmitted on the link. - * - * For unicast addresses, the packet is submitted to etharp_query(). In - * case the IP address is outside the local network, the IP address of - * the gateway is used. - * - * @param netif The lwIP network interface which the IP packet will be sent on. - * @param q The pbuf(s) containing the IP packet to be sent. - * @param ipaddr The IP address of the packet destination. - * - * @return - * - ERR_RTE No route to destination (no gateway to external networks), - * or the return type of either etharp_query() or ethernet_output(). - */ -err_t -etharp_output(struct netif *netif, struct pbuf *q, const ip4_addr_t *ipaddr) -{ - const struct eth_addr *dest; - struct eth_addr mcastaddr; - const ip4_addr_t *dst_addr = ipaddr; - - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ASSERT("netif != NULL", netif != NULL); - LWIP_ASSERT("q != NULL", q != NULL); - LWIP_ASSERT("ipaddr != NULL", ipaddr != NULL); - - /* Determine on destination hardware address. Broadcasts and multicasts - * are special, other IP addresses are looked up in the ARP table. */ - - /* broadcast destination IP address? */ - if (ip4_addr_isbroadcast(ipaddr, netif)) { - /* broadcast on Ethernet also */ - dest = (const struct eth_addr *)ðbroadcast; - /* multicast destination IP address? */ - } else if (ip4_addr_ismulticast(ipaddr)) { - /* Hash IP multicast address to MAC address.*/ - mcastaddr.addr[0] = LL_IP4_MULTICAST_ADDR_0; - mcastaddr.addr[1] = LL_IP4_MULTICAST_ADDR_1; - mcastaddr.addr[2] = LL_IP4_MULTICAST_ADDR_2; - mcastaddr.addr[3] = ip4_addr2(ipaddr) & 0x7f; - mcastaddr.addr[4] = ip4_addr3(ipaddr); - mcastaddr.addr[5] = ip4_addr4(ipaddr); - /* destination Ethernet address is multicast */ - dest = &mcastaddr; - /* unicast destination IP address? */ - } else { - netif_addr_idx_t i; - /* outside local network? if so, this can neither be a global broadcast nor - a subnet broadcast. */ - if (!ip4_addr_netcmp(ipaddr, netif_ip4_addr(netif), netif_ip4_netmask(netif)) && - !ip4_addr_islinklocal(ipaddr)) { -#if LWIP_AUTOIP - struct ip_hdr *iphdr = LWIP_ALIGNMENT_CAST(struct ip_hdr *, q->payload); - /* According to RFC 3297, chapter 2.6.2 (Forwarding Rules), a packet with - a link-local source address must always be "directly to its destination - on the same physical link. The host MUST NOT send the packet to any - router for forwarding". */ - if (!ip4_addr_islinklocal(&iphdr->src)) -#endif /* LWIP_AUTOIP */ - { -#ifdef LWIP_HOOK_ETHARP_GET_GW - /* For advanced routing, a single default gateway might not be enough, so get - the IP address of the gateway to handle the current destination address. */ - dst_addr = LWIP_HOOK_ETHARP_GET_GW(netif, ipaddr); - if (dst_addr == NULL) -#endif /* LWIP_HOOK_ETHARP_GET_GW */ - { - /* interface has default gateway? */ - if (!ip4_addr_isany_val(*netif_ip4_gw(netif))) { - /* send to hardware address of default gateway IP address */ - dst_addr = netif_ip4_gw(netif); - /* no default gateway available */ - } else { - /* no route to destination error (default gateway missing) */ - return ERR_RTE; - } - } - } - } -#if LWIP_NETIF_HWADDRHINT - if (netif->hints != NULL) { - /* per-pcb cached entry was given */ - netif_addr_idx_t etharp_cached_entry = netif->hints->addr_hint; - if (etharp_cached_entry < ARP_TABLE_SIZE) { -#endif /* LWIP_NETIF_HWADDRHINT */ - if ((arp_table[etharp_cached_entry].state >= ETHARP_STATE_STABLE) && -#if ETHARP_TABLE_MATCH_NETIF - (arp_table[etharp_cached_entry].netif == netif) && -#endif - (ip4_addr_cmp(dst_addr, &arp_table[etharp_cached_entry].ipaddr))) { - /* the per-pcb-cached entry is stable and the right one! */ - ETHARP_STATS_INC(etharp.cachehit); - return etharp_output_to_arp_index(netif, q, etharp_cached_entry); - } -#if LWIP_NETIF_HWADDRHINT - } - } -#endif /* LWIP_NETIF_HWADDRHINT */ - - /* find stable entry: do this here since this is a critical path for - throughput and etharp_find_entry() is kind of slow */ - for (i = 0; i < ARP_TABLE_SIZE; i++) { - if ((arp_table[i].state >= ETHARP_STATE_STABLE) && -#if ETHARP_TABLE_MATCH_NETIF - (arp_table[i].netif == netif) && -#endif - (ip4_addr_cmp(dst_addr, &arp_table[i].ipaddr))) { - /* found an existing, stable entry */ - ETHARP_SET_ADDRHINT(netif, i); - return etharp_output_to_arp_index(netif, q, i); - } - } - /* no stable entry found, use the (slower) query function: - queue on destination Ethernet address belonging to ipaddr */ - return etharp_query(netif, dst_addr, q); - } - - /* continuation for multicast/broadcast destinations */ - /* obtain source Ethernet address of the given interface */ - /* send packet directly on the link */ - return ethernet_output(netif, q, (struct eth_addr *)(netif->hwaddr), dest, ETHTYPE_IP); -} - -/** - * Send an ARP request for the given IP address and/or queue a packet. - * - * If the IP address was not yet in the cache, a pending ARP cache entry - * is added and an ARP request is sent for the given address. The packet - * is queued on this entry. - * - * If the IP address was already pending in the cache, a new ARP request - * is sent for the given address. The packet is queued on this entry. - * - * If the IP address was already stable in the cache, and a packet is - * given, it is directly sent and no ARP request is sent out. - * - * If the IP address was already stable in the cache, and no packet is - * given, an ARP request is sent out. - * - * @param netif The lwIP network interface on which ipaddr - * must be queried for. - * @param ipaddr The IP address to be resolved. - * @param q If non-NULL, a pbuf that must be delivered to the IP address. - * q is not freed by this function. - * - * @note q must only be ONE packet, not a packet queue! - * - * @return - * - ERR_BUF Could not make room for Ethernet header. - * - ERR_MEM Hardware address unknown, and no more ARP entries available - * to query for address or queue the packet. - * - ERR_MEM Could not queue packet due to memory shortage. - * - ERR_RTE No route to destination (no gateway to external networks). - * - ERR_ARG Non-unicast address given, those will not appear in ARP cache. - * - */ -err_t -etharp_query(struct netif *netif, const ip4_addr_t *ipaddr, struct pbuf *q) -{ - struct eth_addr *srcaddr = (struct eth_addr *)netif->hwaddr; - err_t result = ERR_MEM; - int is_new_entry = 0; - s16_t i_err; - netif_addr_idx_t i; - - /* non-unicast address? */ - if (ip4_addr_isbroadcast(ipaddr, netif) || - ip4_addr_ismulticast(ipaddr) || - ip4_addr_isany(ipaddr)) { - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: will not add non-unicast IP address to ARP cache\n")); - return ERR_ARG; - } - - /* find entry in ARP cache, ask to create entry if queueing packet */ - i_err = etharp_find_entry(ipaddr, ETHARP_FLAG_TRY_HARD, netif); - - /* could not find or create entry? */ - if (i_err < 0) { - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: could not create ARP entry\n")); - if (q) { - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: packet dropped\n")); - ETHARP_STATS_INC(etharp.memerr); - } - return (err_t)i_err; - } - LWIP_ASSERT("type overflow", (size_t)i_err < NETIF_ADDR_IDX_MAX); - i = (netif_addr_idx_t)i_err; - - /* mark a fresh entry as pending (we just sent a request) */ - if (arp_table[i].state == ETHARP_STATE_EMPTY) { - is_new_entry = 1; - arp_table[i].state = ETHARP_STATE_PENDING; - /* record network interface for re-sending arp request in etharp_tmr */ - arp_table[i].netif = netif; - } - - /* { i is either a STABLE or (new or existing) PENDING entry } */ - LWIP_ASSERT("arp_table[i].state == PENDING or STABLE", - ((arp_table[i].state == ETHARP_STATE_PENDING) || - (arp_table[i].state >= ETHARP_STATE_STABLE))); - - /* do we have a new entry? or an implicit query request? */ - if (is_new_entry || (q == NULL)) { - /* try to resolve it; send out ARP request */ - result = etharp_request(netif, ipaddr); - if (result != ERR_OK) { - /* ARP request couldn't be sent */ - /* We don't re-send arp request in etharp_tmr, but we still queue packets, - since this failure could be temporary, and the next packet calling - etharp_query again could lead to sending the queued packets. */ - } - if (q == NULL) { - return result; - } - } - - /* packet given? */ - LWIP_ASSERT("q != NULL", q != NULL); - /* stable entry? */ - if (arp_table[i].state >= ETHARP_STATE_STABLE) { - /* we have a valid IP->Ethernet address mapping */ - ETHARP_SET_ADDRHINT(netif, i); - /* send the packet */ - result = ethernet_output(netif, q, srcaddr, &(arp_table[i].ethaddr), ETHTYPE_IP); - /* pending entry? (either just created or already pending */ - } else if (arp_table[i].state == ETHARP_STATE_PENDING) { - /* entry is still pending, queue the given packet 'q' */ - struct pbuf *p; - int copy_needed = 0; - /* IF q includes a pbuf that must be copied, copy the whole chain into a - * new PBUF_RAM. See the definition of PBUF_NEEDS_COPY for details. */ - p = q; - while (p) { - LWIP_ASSERT("no packet queues allowed!", (p->len != p->tot_len) || (p->next == 0)); - if (PBUF_NEEDS_COPY(p)) { - copy_needed = 1; - break; - } - p = p->next; - } - if (copy_needed) { - /* copy the whole packet into new pbufs */ - p = pbuf_clone(PBUF_LINK, PBUF_RAM, q); - } else { - /* referencing the old pbuf is enough */ - p = q; - pbuf_ref(p); - } - /* packet could be taken over? */ - if (p != NULL) { - /* queue packet ... */ -#if ARP_QUEUEING - struct etharp_q_entry *new_entry; - /* allocate a new arp queue entry */ - new_entry = (struct etharp_q_entry *)memp_malloc(MEMP_ARP_QUEUE); - if (new_entry != NULL) { - unsigned int qlen = 0; - new_entry->next = 0; - new_entry->p = p; - if (arp_table[i].q != NULL) { - /* queue was already existent, append the new entry to the end */ - struct etharp_q_entry *r; - r = arp_table[i].q; - qlen++; - while (r->next != NULL) { - r = r->next; - qlen++; - } - r->next = new_entry; - } else { - /* queue did not exist, first item in queue */ - arp_table[i].q = new_entry; - } -#if ARP_QUEUE_LEN - if (qlen >= ARP_QUEUE_LEN) { - struct etharp_q_entry *old; - old = arp_table[i].q; - arp_table[i].q = arp_table[i].q->next; - pbuf_free(old->p); - memp_free(MEMP_ARP_QUEUE, old); - } -#endif - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: queued packet %p on ARP entry %"U16_F"\n", (void *)q, i)); - result = ERR_OK; - } else { - /* the pool MEMP_ARP_QUEUE is empty */ - pbuf_free(p); - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: could not queue a copy of PBUF_REF packet %p (out of memory)\n", (void *)q)); - result = ERR_MEM; - } -#else /* ARP_QUEUEING */ - /* always queue one packet per ARP request only, freeing a previously queued packet */ - if (arp_table[i].q != NULL) { - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: dropped previously queued packet %p for ARP entry %"U16_F"\n", (void *)q, (u16_t)i)); - pbuf_free(arp_table[i].q); - } - arp_table[i].q = p; - result = ERR_OK; - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: queued packet %p on ARP entry %"U16_F"\n", (void *)q, (u16_t)i)); -#endif /* ARP_QUEUEING */ - } else { - ETHARP_STATS_INC(etharp.memerr); - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_query: could not queue a copy of PBUF_REF packet %p (out of memory)\n", (void *)q)); - result = ERR_MEM; - } - } - return result; -} - -/** - * Send a raw ARP packet (opcode and all addresses can be modified) - * - * @param netif the lwip network interface on which to send the ARP packet - * @param ethsrc_addr the source MAC address for the ethernet header - * @param ethdst_addr the destination MAC address for the ethernet header - * @param hwsrc_addr the source MAC address for the ARP protocol header - * @param ipsrc_addr the source IP address for the ARP protocol header - * @param hwdst_addr the destination MAC address for the ARP protocol header - * @param ipdst_addr the destination IP address for the ARP protocol header - * @param opcode the type of the ARP packet - * @return ERR_OK if the ARP packet has been sent - * ERR_MEM if the ARP packet couldn't be allocated - * any other err_t on failure - */ -static err_t -etharp_raw(struct netif *netif, const struct eth_addr *ethsrc_addr, - const struct eth_addr *ethdst_addr, - const struct eth_addr *hwsrc_addr, const ip4_addr_t *ipsrc_addr, - const struct eth_addr *hwdst_addr, const ip4_addr_t *ipdst_addr, - const u16_t opcode) -{ - struct pbuf *p; - err_t result = ERR_OK; - struct etharp_hdr *hdr; - - LWIP_ASSERT("netif != NULL", netif != NULL); - - /* allocate a pbuf for the outgoing ARP request packet */ - p = pbuf_alloc(PBUF_LINK, SIZEOF_ETHARP_HDR, PBUF_RAM); - /* could allocate a pbuf for an ARP request? */ - if (p == NULL) { - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, - ("etharp_raw: could not allocate pbuf for ARP request.\n")); - ETHARP_STATS_INC(etharp.memerr); - return ERR_MEM; - } - LWIP_ASSERT("check that first pbuf can hold struct etharp_hdr", - (p->len >= SIZEOF_ETHARP_HDR)); - - hdr = (struct etharp_hdr *)p->payload; - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_raw: sending raw ARP packet.\n")); - hdr->opcode = lwip_htons(opcode); - - LWIP_ASSERT("netif->hwaddr_len must be the same as ETH_HWADDR_LEN for etharp!", - (netif->hwaddr_len == ETH_HWADDR_LEN)); - - /* Write the ARP MAC-Addresses */ - SMEMCPY(&hdr->shwaddr, hwsrc_addr, ETH_HWADDR_LEN); - SMEMCPY(&hdr->dhwaddr, hwdst_addr, ETH_HWADDR_LEN); - /* Copy struct ip4_addr_wordaligned to aligned ip4_addr, to support compilers without - * structure packing. */ - IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T(&hdr->sipaddr, ipsrc_addr); - IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T(&hdr->dipaddr, ipdst_addr); - - hdr->hwtype = PP_HTONS(LWIP_IANA_HWTYPE_ETHERNET); - hdr->proto = PP_HTONS(ETHTYPE_IP); - /* set hwlen and protolen */ - hdr->hwlen = ETH_HWADDR_LEN; - hdr->protolen = sizeof(ip4_addr_t); - - /* send ARP query */ -#if LWIP_AUTOIP - /* If we are using Link-Local, all ARP packets that contain a Link-Local - * 'sender IP address' MUST be sent using link-layer broadcast instead of - * link-layer unicast. (See RFC3927 Section 2.5, last paragraph) */ - if (ip4_addr_islinklocal(ipsrc_addr)) { - ethernet_output(netif, p, ethsrc_addr, ðbroadcast, ETHTYPE_ARP); - } else -#endif /* LWIP_AUTOIP */ - { - ethernet_output(netif, p, ethsrc_addr, ethdst_addr, ETHTYPE_ARP); - } - - ETHARP_STATS_INC(etharp.xmit); - /* free ARP query packet */ - pbuf_free(p); - p = NULL; - /* could not allocate pbuf for ARP request */ - - return result; -} - -/** - * Send an ARP request packet asking for ipaddr to a specific eth address. - * Used to send unicast request to refresh the ARP table just before an entry - * times out - * - * @param netif the lwip network interface on which to send the request - * @param ipaddr the IP address for which to ask - * @param hw_dst_addr the ethernet address to send this packet to - * @return ERR_OK if the request has been sent - * ERR_MEM if the ARP packet couldn't be allocated - * any other err_t on failure - */ -static err_t -etharp_request_dst(struct netif *netif, const ip4_addr_t *ipaddr, const struct eth_addr *hw_dst_addr) -{ - return etharp_raw(netif, (struct eth_addr *)netif->hwaddr, hw_dst_addr, - (struct eth_addr *)netif->hwaddr, netif_ip4_addr(netif), ðzero, - ipaddr, ARP_REQUEST); -} - -/** - * Send an ARP request packet asking for ipaddr. - * - * @param netif the lwip network interface on which to send the request - * @param ipaddr the IP address for which to ask - * @return ERR_OK if the request has been sent - * ERR_MEM if the ARP packet couldn't be allocated - * any other err_t on failure - */ -err_t -etharp_request(struct netif *netif, const ip4_addr_t *ipaddr) -{ - LWIP_DEBUGF(ETHARP_DEBUG | LWIP_DBG_TRACE, ("etharp_request: sending ARP request.\n")); - return etharp_request_dst(netif, ipaddr, ðbroadcast); -} - -#endif /* LWIP_IPV4 && LWIP_ARP */ diff --git a/core/c/core/ipv4/icmp.c b/core/c/core/ipv4/icmp.c deleted file mode 100755 index fd9054b..0000000 --- a/core/c/core/ipv4/icmp.c +++ /dev/null @@ -1,404 +0,0 @@ -/** - * @file - * ICMP - Internet Control Message Protocol - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -/* Some ICMP messages should be passed to the transport protocols. This - is not implemented. */ - -#include "lwip/opt.h" - -#if LWIP_IPV4 && LWIP_ICMP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/icmp.h" -#include "lwip/inet_chksum.h" -#include "lwip/ip.h" -#include "lwip/def.h" -#include "lwip/stats.h" - -#include - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif - -/** Small optimization: set to 0 if incoming PBUF_POOL pbuf always can be - * used to modify and send a response packet (and to 1 if this is not the case, - * e.g. when link header is stripped off when receiving) */ -#ifndef LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN -#define LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN 1 -#endif /* LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN */ - -/* The amount of data from the original packet to return in a dest-unreachable */ -#define ICMP_DEST_UNREACH_DATASIZE 8 - -static void icmp_send_response(struct pbuf *p, u8_t type, u8_t code); - -/** - * Processes ICMP input packets, called from ip_input(). - * - * Currently only processes icmp echo requests and sends - * out the echo response. - * - * @param p the icmp echo request packet, p->payload pointing to the icmp header - * @param inp the netif on which this packet was received - */ -void -icmp_input(struct pbuf *p, struct netif *inp) -{ - u8_t type; -#ifdef LWIP_DEBUG - u8_t code; -#endif /* LWIP_DEBUG */ - struct icmp_echo_hdr *iecho; - const struct ip_hdr *iphdr_in; - u16_t hlen; - const ip4_addr_t *src; - - ICMP_STATS_INC(icmp.recv); - MIB2_STATS_INC(mib2.icmpinmsgs); - - iphdr_in = ip4_current_header(); - hlen = IPH_HL_BYTES(iphdr_in); - if (hlen < IP_HLEN) { - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: short IP header (%"S16_F" bytes) received\n", hlen)); - goto lenerr; - } - if (p->len < sizeof(u16_t) * 2) { - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: short ICMP (%"U16_F" bytes) received\n", p->tot_len)); - goto lenerr; - } - - type = *((u8_t *)p->payload); -#ifdef LWIP_DEBUG - code = *(((u8_t *)p->payload) + 1); - /* if debug is enabled but debug statement below is somehow disabled: */ - LWIP_UNUSED_ARG(code); -#endif /* LWIP_DEBUG */ - switch (type) { - case ICMP_ER: - /* This is OK, echo reply might have been parsed by a raw PCB - (as obviously, an echo request has been sent, too). */ - MIB2_STATS_INC(mib2.icmpinechoreps); - break; - case ICMP_ECHO: - MIB2_STATS_INC(mib2.icmpinechos); - src = ip4_current_dest_addr(); - /* multicast destination address? */ - if (ip4_addr_ismulticast(ip4_current_dest_addr())) { -#if LWIP_MULTICAST_PING - /* For multicast, use address of receiving interface as source address */ - src = netif_ip4_addr(inp); -#else /* LWIP_MULTICAST_PING */ - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: Not echoing to multicast pings\n")); - goto icmperr; -#endif /* LWIP_MULTICAST_PING */ - } - /* broadcast destination address? */ - if (ip4_addr_isbroadcast(ip4_current_dest_addr(), ip_current_netif())) { -#if LWIP_BROADCAST_PING - /* For broadcast, use address of receiving interface as source address */ - src = netif_ip4_addr(inp); -#else /* LWIP_BROADCAST_PING */ - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: Not echoing to broadcast pings\n")); - goto icmperr; -#endif /* LWIP_BROADCAST_PING */ - } - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: ping\n")); - if (p->tot_len < sizeof(struct icmp_echo_hdr)) { - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: bad ICMP echo received\n")); - goto lenerr; - } -#if CHECKSUM_CHECK_ICMP - IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_CHECK_ICMP) { - if (inet_chksum_pbuf(p) != 0) { - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: checksum failed for received ICMP echo\n")); - pbuf_free(p); - ICMP_STATS_INC(icmp.chkerr); - MIB2_STATS_INC(mib2.icmpinerrors); - return; - } - } -#endif -#if LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN - if (pbuf_add_header(p, hlen + PBUF_LINK_HLEN + PBUF_LINK_ENCAPSULATION_HLEN)) { - /* p is not big enough to contain link headers - * allocate a new one and copy p into it - */ - struct pbuf *r; - u16_t alloc_len = (u16_t)(p->tot_len + hlen); - if (alloc_len < p->tot_len) { - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: allocating new pbuf failed (tot_len overflow)\n")); - goto icmperr; - } - /* allocate new packet buffer with space for link headers */ - r = pbuf_alloc(PBUF_LINK, alloc_len, PBUF_RAM); - if (r == NULL) { - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: allocating new pbuf failed\n")); - goto icmperr; - } - if (r->len < hlen + sizeof(struct icmp_echo_hdr)) { - LWIP_DEBUGF(ICMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("first pbuf cannot hold the ICMP header")); - pbuf_free(r); - goto icmperr; - } - /* copy the ip header */ - MEMCPY(r->payload, iphdr_in, hlen); - /* switch r->payload back to icmp header (cannot fail) */ - if (pbuf_remove_header(r, hlen)) { - LWIP_ASSERT("icmp_input: moving r->payload to icmp header failed\n", 0); - pbuf_free(r); - goto icmperr; - } - /* copy the rest of the packet without ip header */ - if (pbuf_copy(r, p) != ERR_OK) { - LWIP_DEBUGF(ICMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("icmp_input: copying to new pbuf failed")); - pbuf_free(r); - goto icmperr; - } - /* free the original p */ - pbuf_free(p); - /* we now have an identical copy of p that has room for link headers */ - p = r; - } else { - /* restore p->payload to point to icmp header (cannot fail) */ - if (pbuf_remove_header(p, hlen + PBUF_LINK_HLEN + PBUF_LINK_ENCAPSULATION_HLEN)) { - LWIP_ASSERT("icmp_input: restoring original p->payload failed\n", 0); - goto icmperr; - } - } -#endif /* LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN */ - /* At this point, all checks are OK. */ - /* We generate an answer by switching the dest and src ip addresses, - * setting the icmp type to ECHO_RESPONSE and updating the checksum. */ - iecho = (struct icmp_echo_hdr *)p->payload; - if (pbuf_add_header(p, hlen)) { - LWIP_DEBUGF(ICMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("Can't move over header in packet")); - } else { - err_t ret; - struct ip_hdr *iphdr = (struct ip_hdr *)p->payload; - ip4_addr_copy(iphdr->src, *src); - ip4_addr_copy(iphdr->dest, *ip4_current_src_addr()); - ICMPH_TYPE_SET(iecho, ICMP_ER); -#if CHECKSUM_GEN_ICMP - IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_GEN_ICMP) { - /* adjust the checksum */ - if (iecho->chksum > PP_HTONS(0xffffU - (ICMP_ECHO << 8))) { - iecho->chksum = (u16_t)(iecho->chksum + PP_HTONS((u16_t)(ICMP_ECHO << 8)) + 1); - } else { - iecho->chksum = (u16_t)(iecho->chksum + PP_HTONS(ICMP_ECHO << 8)); - } - } -#if LWIP_CHECKSUM_CTRL_PER_NETIF - else { - iecho->chksum = 0; - } -#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */ -#else /* CHECKSUM_GEN_ICMP */ - iecho->chksum = 0; -#endif /* CHECKSUM_GEN_ICMP */ - - /* Set the correct TTL and recalculate the header checksum. */ - IPH_TTL_SET(iphdr, ICMP_TTL); - IPH_CHKSUM_SET(iphdr, 0); -#if CHECKSUM_GEN_IP - IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_GEN_IP) { - IPH_CHKSUM_SET(iphdr, inet_chksum(iphdr, hlen)); - } -#endif /* CHECKSUM_GEN_IP */ - - ICMP_STATS_INC(icmp.xmit); - /* increase number of messages attempted to send */ - MIB2_STATS_INC(mib2.icmpoutmsgs); - /* increase number of echo replies attempted to send */ - MIB2_STATS_INC(mib2.icmpoutechoreps); - - /* send an ICMP packet */ - ret = ip4_output_if(p, src, LWIP_IP_HDRINCL, - ICMP_TTL, 0, IP_PROTO_ICMP, inp); - if (ret != ERR_OK) { - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: ip_output_if returned an error: %s\n", lwip_strerr(ret))); - } - } - break; - default: - if (type == ICMP_DUR) { - MIB2_STATS_INC(mib2.icmpindestunreachs); - } else if (type == ICMP_TE) { - MIB2_STATS_INC(mib2.icmpintimeexcds); - } else if (type == ICMP_PP) { - MIB2_STATS_INC(mib2.icmpinparmprobs); - } else if (type == ICMP_SQ) { - MIB2_STATS_INC(mib2.icmpinsrcquenchs); - } else if (type == ICMP_RD) { - MIB2_STATS_INC(mib2.icmpinredirects); - } else if (type == ICMP_TS) { - MIB2_STATS_INC(mib2.icmpintimestamps); - } else if (type == ICMP_TSR) { - MIB2_STATS_INC(mib2.icmpintimestampreps); - } else if (type == ICMP_AM) { - MIB2_STATS_INC(mib2.icmpinaddrmasks); - } else if (type == ICMP_AMR) { - MIB2_STATS_INC(mib2.icmpinaddrmaskreps); - } - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_input: ICMP type %"S16_F" code %"S16_F" not supported.\n", - (s16_t)type, (s16_t)code)); - ICMP_STATS_INC(icmp.proterr); - ICMP_STATS_INC(icmp.drop); - } - pbuf_free(p); - return; -lenerr: - pbuf_free(p); - ICMP_STATS_INC(icmp.lenerr); - MIB2_STATS_INC(mib2.icmpinerrors); - return; -#if LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN || !LWIP_MULTICAST_PING || !LWIP_BROADCAST_PING -icmperr: - pbuf_free(p); - ICMP_STATS_INC(icmp.err); - MIB2_STATS_INC(mib2.icmpinerrors); - return; -#endif /* LWIP_ICMP_ECHO_CHECK_INPUT_PBUF_LEN || !LWIP_MULTICAST_PING || !LWIP_BROADCAST_PING */ -} - -/** - * Send an icmp 'destination unreachable' packet, called from ip_input() if - * the transport layer protocol is unknown and from udp_input() if the local - * port is not bound. - * - * @param p the input packet for which the 'unreachable' should be sent, - * p->payload pointing to the IP header - * @param t type of the 'unreachable' packet - */ -void -icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t) -{ - MIB2_STATS_INC(mib2.icmpoutdestunreachs); - icmp_send_response(p, ICMP_DUR, t); -} - -#if IP_FORWARD || IP_REASSEMBLY -/** - * Send a 'time exceeded' packet, called from ip_forward() if TTL is 0. - * - * @param p the input packet for which the 'time exceeded' should be sent, - * p->payload pointing to the IP header - * @param t type of the 'time exceeded' packet - */ -void -icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t) -{ - MIB2_STATS_INC(mib2.icmpouttimeexcds); - icmp_send_response(p, ICMP_TE, t); -} - -#endif /* IP_FORWARD || IP_REASSEMBLY */ - -/** - * Send an icmp packet in response to an incoming packet. - * - * @param p the input packet for which the 'unreachable' should be sent, - * p->payload pointing to the IP header - * @param type Type of the ICMP header - * @param code Code of the ICMP header - */ -static void -icmp_send_response(struct pbuf *p, u8_t type, u8_t code) -{ - struct pbuf *q; - struct ip_hdr *iphdr; - /* we can use the echo header here */ - struct icmp_echo_hdr *icmphdr; - ip4_addr_t iphdr_src; - struct netif *netif; - - /* increase number of messages attempted to send */ - MIB2_STATS_INC(mib2.icmpoutmsgs); - - /* ICMP header + IP header + 8 bytes of data */ - q = pbuf_alloc(PBUF_IP, sizeof(struct icmp_echo_hdr) + IP_HLEN + ICMP_DEST_UNREACH_DATASIZE, - PBUF_RAM); - if (q == NULL) { - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_time_exceeded: failed to allocate pbuf for ICMP packet.\n")); - MIB2_STATS_INC(mib2.icmpouterrors); - return; - } - LWIP_ASSERT("check that first pbuf can hold icmp message", - (q->len >= (sizeof(struct icmp_echo_hdr) + IP_HLEN + ICMP_DEST_UNREACH_DATASIZE))); - - iphdr = (struct ip_hdr *)p->payload; - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_time_exceeded from ")); - ip4_addr_debug_print_val(ICMP_DEBUG, iphdr->src); - LWIP_DEBUGF(ICMP_DEBUG, (" to ")); - ip4_addr_debug_print_val(ICMP_DEBUG, iphdr->dest); - LWIP_DEBUGF(ICMP_DEBUG, ("\n")); - - icmphdr = (struct icmp_echo_hdr *)q->payload; - icmphdr->type = type; - icmphdr->code = code; - icmphdr->id = 0; - icmphdr->seqno = 0; - - /* copy fields from original packet */ - SMEMCPY((u8_t *)q->payload + sizeof(struct icmp_echo_hdr), (u8_t *)p->payload, - IP_HLEN + ICMP_DEST_UNREACH_DATASIZE); - - ip4_addr_copy(iphdr_src, iphdr->src); -#ifdef LWIP_HOOK_IP4_ROUTE_SRC - { - ip4_addr_t iphdr_dst; - ip4_addr_copy(iphdr_dst, iphdr->dest); - netif = ip4_route_src(&iphdr_dst, &iphdr_src); - } -#else - netif = ip4_route(&iphdr_src); -#endif - if (netif != NULL) { - /* calculate checksum */ - icmphdr->chksum = 0; -#if CHECKSUM_GEN_ICMP - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP) { - icmphdr->chksum = inet_chksum(icmphdr, q->len); - } -#endif - ICMP_STATS_INC(icmp.xmit); - ip4_output_if(q, NULL, &iphdr_src, ICMP_TTL, 0, IP_PROTO_ICMP, netif); - } - pbuf_free(q); -} - -#endif /* LWIP_IPV4 && LWIP_ICMP */ diff --git a/core/c/core/ipv4/igmp.c b/core/c/core/ipv4/igmp.c deleted file mode 100755 index 61f45d9..0000000 --- a/core/c/core/ipv4/igmp.c +++ /dev/null @@ -1,801 +0,0 @@ -/** - * @file - * IGMP - Internet Group Management Protocol - * - * @defgroup igmp IGMP - * @ingroup ip4 - * To be called from TCPIP thread - */ - -/* - * Copyright (c) 2002 CITEL Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file is a contribution to the lwIP TCP/IP stack. - * The Swedish Institute of Computer Science and Adam Dunkels - * are specifically granted permission to redistribute this - * source code. -*/ - -/*------------------------------------------------------------- -Note 1) -Although the rfc requires V1 AND V2 capability -we will only support v2 since now V1 is very old (August 1989) -V1 can be added if required - -a debug print and statistic have been implemented to -show this up. -------------------------------------------------------------- -------------------------------------------------------------- -Note 2) -A query for a specific group address (as opposed to ALLHOSTS) -has now been implemented as I am unsure if it is required - -a debug print and statistic have been implemented to -show this up. -------------------------------------------------------------- -------------------------------------------------------------- -Note 3) -The router alert rfc 2113 is implemented in outgoing packets -but not checked rigorously incoming -------------------------------------------------------------- -Steve Reynolds -------------------------------------------------------------*/ - -/*----------------------------------------------------------------------------- - * RFC 988 - Host extensions for IP multicasting - V0 - * RFC 1054 - Host extensions for IP multicasting - - * RFC 1112 - Host extensions for IP multicasting - V1 - * RFC 2236 - Internet Group Management Protocol, Version 2 - V2 <- this code is based on this RFC (it's the "de facto" standard) - * RFC 3376 - Internet Group Management Protocol, Version 3 - V3 - * RFC 4604 - Using Internet Group Management Protocol Version 3... - V3+ - * RFC 2113 - IP Router Alert Option - - *----------------------------------------------------------------------------*/ - -/*----------------------------------------------------------------------------- - * Includes - *----------------------------------------------------------------------------*/ - -#include "lwip/opt.h" - -#if LWIP_IPV4 && LWIP_IGMP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/igmp.h" -#include "lwip/debug.h" -#include "lwip/def.h" -#include "lwip/mem.h" -#include "lwip/ip.h" -#include "lwip/inet_chksum.h" -#include "lwip/netif.h" -#include "lwip/stats.h" -#include "lwip/prot/igmp.h" - -#include - -static struct igmp_group *igmp_lookup_group(struct netif *ifp, const ip4_addr_t *addr); -static err_t igmp_remove_group(struct netif *netif, struct igmp_group *group); -static void igmp_timeout(struct netif *netif, struct igmp_group *group); -static void igmp_start_timer(struct igmp_group *group, u8_t max_time); -static void igmp_delaying_member(struct igmp_group *group, u8_t maxresp); -static err_t igmp_ip_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, struct netif *netif); -static void igmp_send(struct netif *netif, struct igmp_group *group, u8_t type); - -static ip4_addr_t allsystems; -static ip4_addr_t allrouters; - -/** - * Initialize the IGMP module - */ -void -igmp_init(void) -{ - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_init: initializing\n")); - - IP4_ADDR(&allsystems, 224, 0, 0, 1); - IP4_ADDR(&allrouters, 224, 0, 0, 2); -} - -/** - * Start IGMP processing on interface - * - * @param netif network interface on which start IGMP processing - */ -err_t -igmp_start(struct netif *netif) -{ - struct igmp_group *group; - - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_start: starting IGMP processing on if %p\n", (void *)netif)); - - group = igmp_lookup_group(netif, &allsystems); - - if (group != NULL) { - group->group_state = IGMP_GROUP_IDLE_MEMBER; - group->use++; - - /* Allow the igmp messages at the MAC level */ - if (netif->igmp_mac_filter != NULL) { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_start: igmp_mac_filter(ADD ")); - ip4_addr_debug_print_val(IGMP_DEBUG, allsystems); - LWIP_DEBUGF(IGMP_DEBUG, (") on if %p\n", (void *)netif)); - netif->igmp_mac_filter(netif, &allsystems, NETIF_ADD_MAC_FILTER); - } - - return ERR_OK; - } - - return ERR_MEM; -} - -/** - * Stop IGMP processing on interface - * - * @param netif network interface on which stop IGMP processing - */ -err_t -igmp_stop(struct netif *netif) -{ - struct igmp_group *group = netif_igmp_data(netif); - - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_IGMP, NULL); - - while (group != NULL) { - struct igmp_group *next = group->next; /* avoid use-after-free below */ - - /* disable the group at the MAC level */ - if (netif->igmp_mac_filter != NULL) { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_stop: igmp_mac_filter(DEL ")); - ip4_addr_debug_print_val(IGMP_DEBUG, group->group_address); - LWIP_DEBUGF(IGMP_DEBUG, (") on if %p\n", (void *)netif)); - netif->igmp_mac_filter(netif, &(group->group_address), NETIF_DEL_MAC_FILTER); - } - - /* free group */ - memp_free(MEMP_IGMP_GROUP, group); - - /* move to "next" */ - group = next; - } - return ERR_OK; -} - -/** - * Report IGMP memberships for this interface - * - * @param netif network interface on which report IGMP memberships - */ -void -igmp_report_groups(struct netif *netif) -{ - struct igmp_group *group = netif_igmp_data(netif); - - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_report_groups: sending IGMP reports on if %p\n", (void *)netif)); - - /* Skip the first group in the list, it is always the allsystems group added in igmp_start() */ - if (group != NULL) { - group = group->next; - } - - while (group != NULL) { - igmp_delaying_member(group, IGMP_JOIN_DELAYING_MEMBER_TMR); - group = group->next; - } -} - -/** - * Search for a group in the netif's igmp group list - * - * @param ifp the network interface for which to look - * @param addr the group ip address to search for - * @return a struct igmp_group* if the group has been found, - * NULL if the group wasn't found. - */ -struct igmp_group * -igmp_lookfor_group(struct netif *ifp, const ip4_addr_t *addr) -{ - struct igmp_group *group = netif_igmp_data(ifp); - - while (group != NULL) { - if (ip4_addr_cmp(&(group->group_address), addr)) { - return group; - } - group = group->next; - } - - /* to be clearer, we return NULL here instead of - * 'group' (which is also NULL at this point). - */ - return NULL; -} - -/** - * Search for a specific igmp group and create a new one if not found- - * - * @param ifp the network interface for which to look - * @param addr the group ip address to search - * @return a struct igmp_group*, - * NULL on memory error. - */ -static struct igmp_group * -igmp_lookup_group(struct netif *ifp, const ip4_addr_t *addr) -{ - struct igmp_group *group; - struct igmp_group *list_head = netif_igmp_data(ifp); - - /* Search if the group already exists */ - group = igmp_lookfor_group(ifp, addr); - if (group != NULL) { - /* Group already exists. */ - return group; - } - - /* Group doesn't exist yet, create a new one */ - group = (struct igmp_group *)memp_malloc(MEMP_IGMP_GROUP); - if (group != NULL) { - ip4_addr_set(&(group->group_address), addr); - group->timer = 0; /* Not running */ - group->group_state = IGMP_GROUP_NON_MEMBER; - group->last_reporter_flag = 0; - group->use = 0; - - /* Ensure allsystems group is always first in list */ - if (list_head == NULL) { - /* this is the first entry in linked list */ - LWIP_ASSERT("igmp_lookup_group: first group must be allsystems", - (ip4_addr_cmp(addr, &allsystems) != 0)); - group->next = NULL; - netif_set_client_data(ifp, LWIP_NETIF_CLIENT_DATA_INDEX_IGMP, group); - } else { - /* append _after_ first entry */ - LWIP_ASSERT("igmp_lookup_group: all except first group must not be allsystems", - (ip4_addr_cmp(addr, &allsystems) == 0)); - group->next = list_head->next; - list_head->next = group; - } - } - - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_lookup_group: %sallocated a new group with address ", (group ? "" : "impossible to "))); - ip4_addr_debug_print(IGMP_DEBUG, addr); - LWIP_DEBUGF(IGMP_DEBUG, (" on if %p\n", (void *)ifp)); - - return group; -} - -/** - * Remove a group from netif's igmp group list, but don't free it yet - * - * @param group the group to remove from the netif's igmp group list - * @return ERR_OK if group was removed from the list, an err_t otherwise - */ -static err_t -igmp_remove_group(struct netif *netif, struct igmp_group *group) -{ - err_t err = ERR_OK; - struct igmp_group *tmp_group; - - /* Skip the first group in the list, it is always the allsystems group added in igmp_start() */ - for (tmp_group = netif_igmp_data(netif); tmp_group != NULL; tmp_group = tmp_group->next) { - if (tmp_group->next == group) { - tmp_group->next = group->next; - break; - } - } - /* Group not found in netif's igmp group list */ - if (tmp_group == NULL) { - err = ERR_ARG; - } - - return err; -} - -/** - * Called from ip_input() if a new IGMP packet is received. - * - * @param p received igmp packet, p->payload pointing to the igmp header - * @param inp network interface on which the packet was received - * @param dest destination ip address of the igmp packet - */ -void -igmp_input(struct pbuf *p, struct netif *inp, const ip4_addr_t *dest) -{ - struct igmp_msg *igmp; - struct igmp_group *group; - struct igmp_group *groupref; - - IGMP_STATS_INC(igmp.recv); - - /* Note that the length CAN be greater than 8 but only 8 are used - All are included in the checksum */ - if (p->len < IGMP_MINLEN) { - pbuf_free(p); - IGMP_STATS_INC(igmp.lenerr); - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: length error\n")); - return; - } - - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: message from ")); - ip4_addr_debug_print_val(IGMP_DEBUG, ip4_current_header()->src); - LWIP_DEBUGF(IGMP_DEBUG, (" to address ")); - ip4_addr_debug_print_val(IGMP_DEBUG, ip4_current_header()->dest); - LWIP_DEBUGF(IGMP_DEBUG, (" on if %p\n", (void *)inp)); - - /* Now calculate and check the checksum */ - igmp = (struct igmp_msg *)p->payload; - if (inet_chksum(igmp, p->len)) { - pbuf_free(p); - IGMP_STATS_INC(igmp.chkerr); - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: checksum error\n")); - return; - } - - /* Packet is ok so find an existing group */ - group = igmp_lookfor_group(inp, dest); /* use the destination IP address of incoming packet */ - - /* If group can be found or create... */ - if (!group) { - pbuf_free(p); - IGMP_STATS_INC(igmp.drop); - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: IGMP frame not for us\n")); - return; - } - - /* NOW ACT ON THE INCOMING MESSAGE TYPE... */ - switch (igmp->igmp_msgtype) { - case IGMP_MEMB_QUERY: - /* IGMP_MEMB_QUERY to the "all systems" address ? */ - if ((ip4_addr_cmp(dest, &allsystems)) && ip4_addr_isany(&igmp->igmp_group_address)) { - /* THIS IS THE GENERAL QUERY */ - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: General IGMP_MEMB_QUERY on \"ALL SYSTEMS\" address (224.0.0.1) [igmp_maxresp=%i]\n", (int)(igmp->igmp_maxresp))); - - if (igmp->igmp_maxresp == 0) { - IGMP_STATS_INC(igmp.rx_v1); - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: got an all hosts query with time== 0 - this is V1 and not implemented - treat as v2\n")); - igmp->igmp_maxresp = IGMP_V1_DELAYING_MEMBER_TMR; - } else { - IGMP_STATS_INC(igmp.rx_general); - } - - groupref = netif_igmp_data(inp); - - /* Do not send messages on the all systems group address! */ - /* Skip the first group in the list, it is always the allsystems group added in igmp_start() */ - if (groupref != NULL) { - groupref = groupref->next; - } - - while (groupref) { - igmp_delaying_member(groupref, igmp->igmp_maxresp); - groupref = groupref->next; - } - } else { - /* IGMP_MEMB_QUERY to a specific group ? */ - if (!ip4_addr_isany(&igmp->igmp_group_address)) { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: IGMP_MEMB_QUERY to a specific group ")); - ip4_addr_debug_print_val(IGMP_DEBUG, igmp->igmp_group_address); - if (ip4_addr_cmp(dest, &allsystems)) { - ip4_addr_t groupaddr; - LWIP_DEBUGF(IGMP_DEBUG, (" using \"ALL SYSTEMS\" address (224.0.0.1) [igmp_maxresp=%i]\n", (int)(igmp->igmp_maxresp))); - /* we first need to re-look for the group since we used dest last time */ - ip4_addr_copy(groupaddr, igmp->igmp_group_address); - group = igmp_lookfor_group(inp, &groupaddr); - } else { - LWIP_DEBUGF(IGMP_DEBUG, (" with the group address as destination [igmp_maxresp=%i]\n", (int)(igmp->igmp_maxresp))); - } - - if (group != NULL) { - IGMP_STATS_INC(igmp.rx_group); - igmp_delaying_member(group, igmp->igmp_maxresp); - } else { - IGMP_STATS_INC(igmp.drop); - } - } else { - IGMP_STATS_INC(igmp.proterr); - } - } - break; - case IGMP_V2_MEMB_REPORT: - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: IGMP_V2_MEMB_REPORT\n")); - IGMP_STATS_INC(igmp.rx_report); - if (group->group_state == IGMP_GROUP_DELAYING_MEMBER) { - /* This is on a specific group we have already looked up */ - group->timer = 0; /* stopped */ - group->group_state = IGMP_GROUP_IDLE_MEMBER; - group->last_reporter_flag = 0; - } - break; - default: - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_input: unexpected msg %d in state %d on group %p on if %p\n", - igmp->igmp_msgtype, group->group_state, (void *)&group, (void *)inp)); - IGMP_STATS_INC(igmp.proterr); - break; - } - - pbuf_free(p); - return; -} - -/** - * @ingroup igmp - * Join a group on one network interface. - * - * @param ifaddr ip address of the network interface which should join a new group - * @param groupaddr the ip address of the group which to join - * @return ERR_OK if group was joined on the netif(s), an err_t otherwise - */ -err_t -igmp_joingroup(const ip4_addr_t *ifaddr, const ip4_addr_t *groupaddr) -{ - err_t err = ERR_VAL; /* no matching interface */ - struct netif *netif; - - LWIP_ASSERT_CORE_LOCKED(); - - /* make sure it is multicast address */ - LWIP_ERROR("igmp_joingroup: attempt to join non-multicast address", ip4_addr_ismulticast(groupaddr), return ERR_VAL;); - LWIP_ERROR("igmp_joingroup: attempt to join allsystems address", (!ip4_addr_cmp(groupaddr, &allsystems)), return ERR_VAL;); - - /* loop through netif's */ - NETIF_FOREACH(netif) { - /* Should we join this interface ? */ - if ((netif->flags & NETIF_FLAG_IGMP) && ((ip4_addr_isany(ifaddr) || ip4_addr_cmp(netif_ip4_addr(netif), ifaddr)))) { - err = igmp_joingroup_netif(netif, groupaddr); - if (err != ERR_OK) { - /* Return an error even if some network interfaces are joined */ - /** @todo undo any other netif already joined */ - return err; - } - } - } - - return err; -} - -/** - * @ingroup igmp - * Join a group on one network interface. - * - * @param netif the network interface which should join a new group - * @param groupaddr the ip address of the group which to join - * @return ERR_OK if group was joined on the netif, an err_t otherwise - */ -err_t -igmp_joingroup_netif(struct netif *netif, const ip4_addr_t *groupaddr) -{ - struct igmp_group *group; - - LWIP_ASSERT_CORE_LOCKED(); - - /* make sure it is multicast address */ - LWIP_ERROR("igmp_joingroup_netif: attempt to join non-multicast address", ip4_addr_ismulticast(groupaddr), return ERR_VAL;); - LWIP_ERROR("igmp_joingroup_netif: attempt to join allsystems address", (!ip4_addr_cmp(groupaddr, &allsystems)), return ERR_VAL;); - - /* make sure it is an igmp-enabled netif */ - LWIP_ERROR("igmp_joingroup_netif: attempt to join on non-IGMP netif", netif->flags & NETIF_FLAG_IGMP, return ERR_VAL;); - - /* find group or create a new one if not found */ - group = igmp_lookup_group(netif, groupaddr); - - if (group != NULL) { - /* This should create a new group, check the state to make sure */ - if (group->group_state != IGMP_GROUP_NON_MEMBER) { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_joingroup_netif: join to group not in state IGMP_GROUP_NON_MEMBER\n")); - } else { - /* OK - it was new group */ - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_joingroup_netif: join to new group: ")); - ip4_addr_debug_print(IGMP_DEBUG, groupaddr); - LWIP_DEBUGF(IGMP_DEBUG, ("\n")); - - /* If first use of the group, allow the group at the MAC level */ - if ((group->use == 0) && (netif->igmp_mac_filter != NULL)) { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_joingroup_netif: igmp_mac_filter(ADD ")); - ip4_addr_debug_print(IGMP_DEBUG, groupaddr); - LWIP_DEBUGF(IGMP_DEBUG, (") on if %p\n", (void *)netif)); - netif->igmp_mac_filter(netif, groupaddr, NETIF_ADD_MAC_FILTER); - } - - IGMP_STATS_INC(igmp.tx_join); - igmp_send(netif, group, IGMP_V2_MEMB_REPORT); - - igmp_start_timer(group, IGMP_JOIN_DELAYING_MEMBER_TMR); - - /* Need to work out where this timer comes from */ - group->group_state = IGMP_GROUP_DELAYING_MEMBER; - } - /* Increment group use */ - group->use++; - /* Join on this interface */ - return ERR_OK; - } else { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_joingroup_netif: Not enough memory to join to group\n")); - return ERR_MEM; - } -} - -/** - * @ingroup igmp - * Leave a group on one network interface. - * - * @param ifaddr ip address of the network interface which should leave a group - * @param groupaddr the ip address of the group which to leave - * @return ERR_OK if group was left on the netif(s), an err_t otherwise - */ -err_t -igmp_leavegroup(const ip4_addr_t *ifaddr, const ip4_addr_t *groupaddr) -{ - err_t err = ERR_VAL; /* no matching interface */ - struct netif *netif; - - LWIP_ASSERT_CORE_LOCKED(); - - /* make sure it is multicast address */ - LWIP_ERROR("igmp_leavegroup: attempt to leave non-multicast address", ip4_addr_ismulticast(groupaddr), return ERR_VAL;); - LWIP_ERROR("igmp_leavegroup: attempt to leave allsystems address", (!ip4_addr_cmp(groupaddr, &allsystems)), return ERR_VAL;); - - /* loop through netif's */ - NETIF_FOREACH(netif) { - /* Should we leave this interface ? */ - if ((netif->flags & NETIF_FLAG_IGMP) && ((ip4_addr_isany(ifaddr) || ip4_addr_cmp(netif_ip4_addr(netif), ifaddr)))) { - err_t res = igmp_leavegroup_netif(netif, groupaddr); - if (err != ERR_OK) { - /* Store this result if we have not yet gotten a success */ - err = res; - } - } - } - - return err; -} - -/** - * @ingroup igmp - * Leave a group on one network interface. - * - * @param netif the network interface which should leave a group - * @param groupaddr the ip address of the group which to leave - * @return ERR_OK if group was left on the netif, an err_t otherwise - */ -err_t -igmp_leavegroup_netif(struct netif *netif, const ip4_addr_t *groupaddr) -{ - struct igmp_group *group; - - LWIP_ASSERT_CORE_LOCKED(); - - /* make sure it is multicast address */ - LWIP_ERROR("igmp_leavegroup_netif: attempt to leave non-multicast address", ip4_addr_ismulticast(groupaddr), return ERR_VAL;); - LWIP_ERROR("igmp_leavegroup_netif: attempt to leave allsystems address", (!ip4_addr_cmp(groupaddr, &allsystems)), return ERR_VAL;); - - /* make sure it is an igmp-enabled netif */ - LWIP_ERROR("igmp_leavegroup_netif: attempt to leave on non-IGMP netif", netif->flags & NETIF_FLAG_IGMP, return ERR_VAL;); - - /* find group */ - group = igmp_lookfor_group(netif, groupaddr); - - if (group != NULL) { - /* Only send a leave if the flag is set according to the state diagram */ - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_leavegroup_netif: Leaving group: ")); - ip4_addr_debug_print(IGMP_DEBUG, groupaddr); - LWIP_DEBUGF(IGMP_DEBUG, ("\n")); - - /* If there is no other use of the group */ - if (group->use <= 1) { - /* Remove the group from the list */ - igmp_remove_group(netif, group); - - /* If we are the last reporter for this group */ - if (group->last_reporter_flag) { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_leavegroup_netif: sending leaving group\n")); - IGMP_STATS_INC(igmp.tx_leave); - igmp_send(netif, group, IGMP_LEAVE_GROUP); - } - - /* Disable the group at the MAC level */ - if (netif->igmp_mac_filter != NULL) { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_leavegroup_netif: igmp_mac_filter(DEL ")); - ip4_addr_debug_print(IGMP_DEBUG, groupaddr); - LWIP_DEBUGF(IGMP_DEBUG, (") on if %p\n", (void *)netif)); - netif->igmp_mac_filter(netif, groupaddr, NETIF_DEL_MAC_FILTER); - } - - /* Free group struct */ - memp_free(MEMP_IGMP_GROUP, group); - } else { - /* Decrement group use */ - group->use--; - } - return ERR_OK; - } else { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_leavegroup_netif: not member of group\n")); - return ERR_VAL; - } -} - -/** - * The igmp timer function (both for NO_SYS=1 and =0) - * Should be called every IGMP_TMR_INTERVAL milliseconds (100 ms is default). - */ -void -igmp_tmr(void) -{ - struct netif *netif; - - NETIF_FOREACH(netif) { - struct igmp_group *group = netif_igmp_data(netif); - - while (group != NULL) { - if (group->timer > 0) { - group->timer--; - if (group->timer == 0) { - igmp_timeout(netif, group); - } - } - group = group->next; - } - } -} - -/** - * Called if a timeout for one group is reached. - * Sends a report for this group. - * - * @param group an igmp_group for which a timeout is reached - */ -static void -igmp_timeout(struct netif *netif, struct igmp_group *group) -{ - /* If the state is IGMP_GROUP_DELAYING_MEMBER then we send a report for this group - (unless it is the allsystems group) */ - if ((group->group_state == IGMP_GROUP_DELAYING_MEMBER) && - (!(ip4_addr_cmp(&(group->group_address), &allsystems)))) { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_timeout: report membership for group with address ")); - ip4_addr_debug_print_val(IGMP_DEBUG, group->group_address); - LWIP_DEBUGF(IGMP_DEBUG, (" on if %p\n", (void *)netif)); - - group->group_state = IGMP_GROUP_IDLE_MEMBER; - - IGMP_STATS_INC(igmp.tx_report); - igmp_send(netif, group, IGMP_V2_MEMB_REPORT); - } -} - -/** - * Start a timer for an igmp group - * - * @param group the igmp_group for which to start a timer - * @param max_time the time in multiples of IGMP_TMR_INTERVAL (decrease with - * every call to igmp_tmr()) - */ -static void -igmp_start_timer(struct igmp_group *group, u8_t max_time) -{ -#ifdef LWIP_RAND - group->timer = (u16_t)(max_time > 2 ? (LWIP_RAND() % max_time) : 1); -#else /* LWIP_RAND */ - /* ATTENTION: use this only if absolutely necessary! */ - group->timer = max_time / 2; -#endif /* LWIP_RAND */ - - if (group->timer == 0) { - group->timer = 1; - } -} - -/** - * Delaying membership report for a group if necessary - * - * @param group the igmp_group for which "delaying" membership report - * @param maxresp query delay - */ -static void -igmp_delaying_member(struct igmp_group *group, u8_t maxresp) -{ - if ((group->group_state == IGMP_GROUP_IDLE_MEMBER) || - ((group->group_state == IGMP_GROUP_DELAYING_MEMBER) && - ((group->timer == 0) || (maxresp < group->timer)))) { - igmp_start_timer(group, maxresp); - group->group_state = IGMP_GROUP_DELAYING_MEMBER; - } -} - - -/** - * Sends an IP packet on a network interface. This function constructs the IP header - * and calculates the IP header checksum. If the source IP address is NULL, - * the IP address of the outgoing network interface is filled in as source address. - * - * @param p the packet to send (p->payload points to the data, e.g. next - protocol header; if dest == LWIP_IP_HDRINCL, p already includes an - IP header and p->payload points to that IP header) - * @param src the source IP address to send from (if src == IP4_ADDR_ANY, the - * IP address of the netif used to send is used as source address) - * @param dest the destination IP address to send the packet to - * @param netif the netif on which to send this packet - * @return ERR_OK if the packet was sent OK - * ERR_BUF if p doesn't have enough space for IP/LINK headers - * returns errors returned by netif->output - */ -static err_t -igmp_ip_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, struct netif *netif) -{ - /* This is the "router alert" option */ - u16_t ra[2]; - ra[0] = PP_HTONS(ROUTER_ALERT); - ra[1] = 0x0000; /* Router shall examine packet */ - IGMP_STATS_INC(igmp.xmit); - return ip4_output_if_opt(p, src, dest, IGMP_TTL, 0, IP_PROTO_IGMP, netif, ra, ROUTER_ALERTLEN); -} - -/** - * Send an igmp packet to a specific group. - * - * @param group the group to which to send the packet - * @param type the type of igmp packet to send - */ -static void -igmp_send(struct netif *netif, struct igmp_group *group, u8_t type) -{ - struct pbuf *p = NULL; - struct igmp_msg *igmp = NULL; - ip4_addr_t src = *IP4_ADDR_ANY4; - ip4_addr_t *dest = NULL; - - /* IP header + "router alert" option + IGMP header */ - p = pbuf_alloc(PBUF_TRANSPORT, IGMP_MINLEN, PBUF_RAM); - - if (p) { - igmp = (struct igmp_msg *)p->payload; - LWIP_ASSERT("igmp_send: check that first pbuf can hold struct igmp_msg", - (p->len >= sizeof(struct igmp_msg))); - ip4_addr_copy(src, *netif_ip4_addr(netif)); - - if (type == IGMP_V2_MEMB_REPORT) { - dest = &(group->group_address); - ip4_addr_copy(igmp->igmp_group_address, group->group_address); - group->last_reporter_flag = 1; /* Remember we were the last to report */ - } else { - if (type == IGMP_LEAVE_GROUP) { - dest = &allrouters; - ip4_addr_copy(igmp->igmp_group_address, group->group_address); - } - } - - if ((type == IGMP_V2_MEMB_REPORT) || (type == IGMP_LEAVE_GROUP)) { - igmp->igmp_msgtype = type; - igmp->igmp_maxresp = 0; - igmp->igmp_checksum = 0; - igmp->igmp_checksum = inet_chksum(igmp, IGMP_MINLEN); - - igmp_ip_output_if(p, &src, dest, netif); - } - - pbuf_free(p); - } else { - LWIP_DEBUGF(IGMP_DEBUG, ("igmp_send: not enough memory for igmp_send\n")); - IGMP_STATS_INC(igmp.memerr); - } -} - -#endif /* LWIP_IPV4 && LWIP_IGMP */ diff --git a/core/c/core/ipv4/ip4.c b/core/c/core/ipv4/ip4.c deleted file mode 100755 index e638eb8..0000000 --- a/core/c/core/ipv4/ip4.c +++ /dev/null @@ -1,1145 +0,0 @@ -/** - * @file - * This is the IPv4 layer implementation for incoming and outgoing IP traffic. - * - * @see ip_frag.c - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV4 - -#include "lwip/ip.h" -#include "lwip/def.h" -#include "lwip/mem.h" -#include "lwip/ip4_frag.h" -#include "lwip/inet_chksum.h" -#include "lwip/netif.h" -#include "lwip/icmp.h" -#include "lwip/igmp.h" -#include "lwip/priv/raw_priv.h" -#include "lwip/udp.h" -#include "lwip/priv/tcp_priv.h" -#include "lwip/autoip.h" -#include "lwip/stats.h" -#include "lwip/prot/iana.h" - -#include - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif - -/** Set this to 0 in the rare case of wanting to call an extra function to - * generate the IP checksum (in contrast to calculating it on-the-fly). */ -#ifndef LWIP_INLINE_IP_CHKSUM -#if LWIP_CHECKSUM_CTRL_PER_NETIF -#define LWIP_INLINE_IP_CHKSUM 0 -#else /* LWIP_CHECKSUM_CTRL_PER_NETIF */ -#define LWIP_INLINE_IP_CHKSUM 1 -#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */ -#endif - -#if LWIP_INLINE_IP_CHKSUM && CHECKSUM_GEN_IP -#define CHECKSUM_GEN_IP_INLINE 1 -#else -#define CHECKSUM_GEN_IP_INLINE 0 -#endif - -#if LWIP_DHCP || defined(LWIP_IP_ACCEPT_UDP_PORT) -#define IP_ACCEPT_LINK_LAYER_ADDRESSING 1 - -/** Some defines for DHCP to let link-layer-addressed packets through while the - * netif is down. - * To use this in your own application/protocol, define LWIP_IP_ACCEPT_UDP_PORT(port) - * to return 1 if the port is accepted and 0 if the port is not accepted. - */ -#if LWIP_DHCP && defined(LWIP_IP_ACCEPT_UDP_PORT) -/* accept DHCP client port and custom port */ -#define IP_ACCEPT_LINK_LAYER_ADDRESSED_PORT(port) (((port) == PP_NTOHS(LWIP_IANA_PORT_DHCP_CLIENT)) \ - || (LWIP_IP_ACCEPT_UDP_PORT(port))) -#elif defined(LWIP_IP_ACCEPT_UDP_PORT) /* LWIP_DHCP && defined(LWIP_IP_ACCEPT_UDP_PORT) */ -/* accept custom port only */ -#define IP_ACCEPT_LINK_LAYER_ADDRESSED_PORT(port) (LWIP_IP_ACCEPT_UDP_PORT(port)) -#else /* LWIP_DHCP && defined(LWIP_IP_ACCEPT_UDP_PORT) */ -/* accept DHCP client port only */ -#define IP_ACCEPT_LINK_LAYER_ADDRESSED_PORT(port) ((port) == PP_NTOHS(LWIP_IANA_PORT_DHCP_CLIENT)) -#endif /* LWIP_DHCP && defined(LWIP_IP_ACCEPT_UDP_PORT) */ - -#else /* LWIP_DHCP */ -#define IP_ACCEPT_LINK_LAYER_ADDRESSING 0 -#endif /* LWIP_DHCP */ - -/** The IP header ID of the next outgoing IP packet */ -static u16_t ip_id; - -#if LWIP_MULTICAST_TX_OPTIONS -/** The default netif used for multicast */ -static struct netif *ip4_default_multicast_netif; - -/** - * @ingroup ip4 - * Set a default netif for IPv4 multicast. */ -void -ip4_set_default_multicast_netif(struct netif *default_multicast_netif) -{ - ip4_default_multicast_netif = default_multicast_netif; -} -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - -#ifdef LWIP_HOOK_IP4_ROUTE_SRC -/** - * Source based IPv4 routing must be fully implemented in - * LWIP_HOOK_IP4_ROUTE_SRC(). This function only provides the parameters. - */ -struct netif * -ip4_route_src(const ip4_addr_t *src, const ip4_addr_t *dest) -{ - if (src != NULL) { - /* when src==NULL, the hook is called from ip4_route(dest) */ - struct netif *netif = LWIP_HOOK_IP4_ROUTE_SRC(src, dest); - if (netif != NULL) { - return netif; - } - } - return ip4_route(dest); -} -#endif /* LWIP_HOOK_IP4_ROUTE_SRC */ - -/** - * Finds the appropriate network interface for a given IP address. It - * searches the list of network interfaces linearly. A match is found - * if the masked IP address of the network interface equals the masked - * IP address given to the function. - * - * @param dest the destination IP address for which to find the route - * @return the netif on which to send to reach dest - */ -struct netif * -ip4_route(const ip4_addr_t *dest) -{ -#if TUN2SOCKS - // go-tun2socks logic - // no routing and just use the default netif, netif_list[0], i.e., the loopif - // enable loopif by setting LWIP_HAVE_LOOPIF = 1 in lwipopts.h - return netif_list; -#endif /* TUN2SOCKS */ - -#if !LWIP_SINGLE_NETIF - struct netif *netif; - - LWIP_ASSERT_CORE_LOCKED(); - -#if LWIP_MULTICAST_TX_OPTIONS - /* Use administratively selected interface for multicast by default */ - if (ip4_addr_ismulticast(dest) && ip4_default_multicast_netif) { - return ip4_default_multicast_netif; - } -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - - /* bug #54569: in case LWIP_SINGLE_NETIF=1 and LWIP_DEBUGF() disabled, the following loop is optimized away */ - LWIP_UNUSED_ARG(dest); - - /* iterate through netifs */ - NETIF_FOREACH(netif) { - /* is the netif up, does it have a link and a valid address? */ - if (netif_is_up(netif) && netif_is_link_up(netif) && !ip4_addr_isany_val(*netif_ip4_addr(netif))) { - /* network mask matches? */ - if (ip4_addr_netcmp(dest, netif_ip4_addr(netif), netif_ip4_netmask(netif))) { - /* return netif on which to forward IP packet */ - return netif; - } - /* gateway matches on a non broadcast interface? (i.e. peer in a point to point interface) */ - if (((netif->flags & NETIF_FLAG_BROADCAST) == 0) && ip4_addr_cmp(dest, netif_ip4_gw(netif))) { - /* return netif on which to forward IP packet */ - return netif; - } - } - } - -#if LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF - /* loopif is disabled, looopback traffic is passed through any netif */ - if (ip4_addr_isloopback(dest)) { - /* don't check for link on loopback traffic */ - if (netif_default != NULL && netif_is_up(netif_default)) { - return netif_default; - } - /* default netif is not up, just use any netif for loopback traffic */ - NETIF_FOREACH(netif) { - if (netif_is_up(netif)) { - return netif; - } - } - return NULL; - } -#endif /* LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF */ - -#ifdef LWIP_HOOK_IP4_ROUTE_SRC - netif = LWIP_HOOK_IP4_ROUTE_SRC(NULL, dest); - if (netif != NULL) { - return netif; - } -#elif defined(LWIP_HOOK_IP4_ROUTE) - netif = LWIP_HOOK_IP4_ROUTE(dest); - if (netif != NULL) { - return netif; - } -#endif -#endif /* !LWIP_SINGLE_NETIF */ - - if ((netif_default == NULL) || !netif_is_up(netif_default) || !netif_is_link_up(netif_default) || - ip4_addr_isany_val(*netif_ip4_addr(netif_default)) || ip4_addr_isloopback(dest)) { - /* No matching netif found and default netif is not usable. - If this is not good enough for you, use LWIP_HOOK_IP4_ROUTE() */ - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip4_route: No route to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - ip4_addr1_16(dest), ip4_addr2_16(dest), ip4_addr3_16(dest), ip4_addr4_16(dest))); - IP_STATS_INC(ip.rterr); - MIB2_STATS_INC(mib2.ipoutnoroutes); - return NULL; - } - - return netif_default; -} - -#if IP_FORWARD -/** - * Determine whether an IP address is in a reserved set of addresses - * that may not be forwarded, or whether datagrams to that destination - * may be forwarded. - * @param p the packet to forward - * @return 1: can forward 0: discard - */ -static int -ip4_canforward(struct pbuf *p) -{ - u32_t addr = lwip_htonl(ip4_addr_get_u32(ip4_current_dest_addr())); - -#ifdef LWIP_HOOK_IP4_CANFORWARD - int ret = LWIP_HOOK_IP4_CANFORWARD(p, addr); - if (ret >= 0) { - return ret; - } -#endif /* LWIP_HOOK_IP4_CANFORWARD */ - - if (p->flags & PBUF_FLAG_LLBCAST) { - /* don't route link-layer broadcasts */ - return 0; - } - if ((p->flags & PBUF_FLAG_LLMCAST) || IP_MULTICAST(addr)) { - /* don't route link-layer multicasts (use LWIP_HOOK_IP4_CANFORWARD instead) */ - return 0; - } - if (IP_EXPERIMENTAL(addr)) { - return 0; - } - if (IP_CLASSA(addr)) { - u32_t net = addr & IP_CLASSA_NET; - if ((net == 0) || (net == ((u32_t)IP_LOOPBACKNET << IP_CLASSA_NSHIFT))) { - /* don't route loopback packets */ - return 0; - } - } - return 1; -} - -/** - * Forwards an IP packet. It finds an appropriate route for the - * packet, decrements the TTL value of the packet, adjusts the - * checksum and outputs the packet on the appropriate interface. - * - * @param p the packet to forward (p->payload points to IP header) - * @param iphdr the IP header of the input packet - * @param inp the netif on which this packet was received - */ -static void -ip4_forward(struct pbuf *p, struct ip_hdr *iphdr, struct netif *inp) -{ - struct netif *netif; - - PERF_START; - LWIP_UNUSED_ARG(inp); - - if (!ip4_canforward(p)) { - goto return_noroute; - } - - /* RFC3927 2.7: do not forward link-local addresses */ - if (ip4_addr_islinklocal(ip4_current_dest_addr())) { - LWIP_DEBUGF(IP_DEBUG, ("ip4_forward: not forwarding LLA %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - ip4_addr1_16(ip4_current_dest_addr()), ip4_addr2_16(ip4_current_dest_addr()), - ip4_addr3_16(ip4_current_dest_addr()), ip4_addr4_16(ip4_current_dest_addr()))); - goto return_noroute; - } - - /* Find network interface where to forward this IP packet to. */ - netif = ip4_route_src(ip4_current_src_addr(), ip4_current_dest_addr()); - if (netif == NULL) { - LWIP_DEBUGF(IP_DEBUG, ("ip4_forward: no forwarding route for %"U16_F".%"U16_F".%"U16_F".%"U16_F" found\n", - ip4_addr1_16(ip4_current_dest_addr()), ip4_addr2_16(ip4_current_dest_addr()), - ip4_addr3_16(ip4_current_dest_addr()), ip4_addr4_16(ip4_current_dest_addr()))); - /* @todo: send ICMP_DUR_NET? */ - goto return_noroute; - } -#if !IP_FORWARD_ALLOW_TX_ON_RX_NETIF - /* Do not forward packets onto the same network interface on which - * they arrived. */ - if (netif == inp) { - LWIP_DEBUGF(IP_DEBUG, ("ip4_forward: not bouncing packets back on incoming interface.\n")); - goto return_noroute; - } -#endif /* IP_FORWARD_ALLOW_TX_ON_RX_NETIF */ - - /* decrement TTL */ - IPH_TTL_SET(iphdr, IPH_TTL(iphdr) - 1); - /* send ICMP if TTL == 0 */ - if (IPH_TTL(iphdr) == 0) { - MIB2_STATS_INC(mib2.ipinhdrerrors); -#if LWIP_ICMP - /* Don't send ICMP messages in response to ICMP messages */ - if (IPH_PROTO(iphdr) != IP_PROTO_ICMP) { - icmp_time_exceeded(p, ICMP_TE_TTL); - } -#endif /* LWIP_ICMP */ - return; - } - - /* Incrementally update the IP checksum. */ - if (IPH_CHKSUM(iphdr) >= PP_HTONS(0xffffU - 0x100)) { - IPH_CHKSUM_SET(iphdr, (u16_t)(IPH_CHKSUM(iphdr) + PP_HTONS(0x100) + 1)); - } else { - IPH_CHKSUM_SET(iphdr, (u16_t)(IPH_CHKSUM(iphdr) + PP_HTONS(0x100))); - } - - LWIP_DEBUGF(IP_DEBUG, ("ip4_forward: forwarding packet to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - ip4_addr1_16(ip4_current_dest_addr()), ip4_addr2_16(ip4_current_dest_addr()), - ip4_addr3_16(ip4_current_dest_addr()), ip4_addr4_16(ip4_current_dest_addr()))); - - IP_STATS_INC(ip.fw); - MIB2_STATS_INC(mib2.ipforwdatagrams); - IP_STATS_INC(ip.xmit); - - PERF_STOP("ip4_forward"); - /* don't fragment if interface has mtu set to 0 [loopif] */ - if (netif->mtu && (p->tot_len > netif->mtu)) { - if ((IPH_OFFSET(iphdr) & PP_NTOHS(IP_DF)) == 0) { -#if IP_FRAG - ip4_frag(p, netif, ip4_current_dest_addr()); -#else /* IP_FRAG */ - /* @todo: send ICMP Destination Unreachable code 13 "Communication administratively prohibited"? */ -#endif /* IP_FRAG */ - } else { -#if LWIP_ICMP - /* send ICMP Destination Unreachable code 4: "Fragmentation Needed and DF Set" */ - icmp_dest_unreach(p, ICMP_DUR_FRAG); -#endif /* LWIP_ICMP */ - } - return; - } - /* transmit pbuf on chosen interface */ - netif->output(netif, p, ip4_current_dest_addr()); - return; -return_noroute: - MIB2_STATS_INC(mib2.ipoutnoroutes); -} -#endif /* IP_FORWARD */ - -/** Return true if the current input packet should be accepted on this netif */ -static int -ip4_input_accept(struct netif *netif) -{ -#if TUN2SOCKS - // go-tun2socks logic - // all packets are accepted by the first one, and it should be the loopif - return 1; -#endif /* TUN2SOCKS */ - - LWIP_DEBUGF(IP_DEBUG, ("ip_input: iphdr->dest 0x%"X32_F" netif->ip_addr 0x%"X32_F" (0x%"X32_F", 0x%"X32_F", 0x%"X32_F")\n", - ip4_addr_get_u32(ip4_current_dest_addr()), ip4_addr_get_u32(netif_ip4_addr(netif)), - ip4_addr_get_u32(ip4_current_dest_addr()) & ip4_addr_get_u32(netif_ip4_netmask(netif)), - ip4_addr_get_u32(netif_ip4_addr(netif)) & ip4_addr_get_u32(netif_ip4_netmask(netif)), - ip4_addr_get_u32(ip4_current_dest_addr()) & ~ip4_addr_get_u32(netif_ip4_netmask(netif)))); - - /* interface is up and configured? */ - if ((netif_is_up(netif)) && (!ip4_addr_isany_val(*netif_ip4_addr(netif)))) { - /* unicast to this interface address? */ - if (ip4_addr_cmp(ip4_current_dest_addr(), netif_ip4_addr(netif)) || - /* or broadcast on this interface network address? */ - ip4_addr_isbroadcast(ip4_current_dest_addr(), netif) -#if LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF - || (ip4_addr_get_u32(ip4_current_dest_addr()) == PP_HTONL(IPADDR_LOOPBACK)) -#endif /* LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF */ - ) { - LWIP_DEBUGF(IP_DEBUG, ("ip4_input: packet accepted on interface %c%c\n", - netif->name[0], netif->name[1])); - /* accept on this netif */ - return 1; - } -#if LWIP_AUTOIP - /* connections to link-local addresses must persist after changing - the netif's address (RFC3927 ch. 1.9) */ - if (autoip_accept_packet(netif, ip4_current_dest_addr())) { - LWIP_DEBUGF(IP_DEBUG, ("ip4_input: LLA packet accepted on interface %c%c\n", - netif->name[0], netif->name[1])); - /* accept on this netif */ - return 1; - } -#endif /* LWIP_AUTOIP */ - } - return 0; -} - -/** - * This function is called by the network interface device driver when - * an IP packet is received. The function does the basic checks of the - * IP header such as packet size being at least larger than the header - * size etc. If the packet was not destined for us, the packet is - * forwarded (using ip_forward). The IP checksum is always checked. - * - * Finally, the packet is sent to the upper layer protocol input function. - * - * @param p the received IP packet (p->payload points to IP header) - * @param inp the netif on which this packet was received - * @return ERR_OK if the packet was processed (could return ERR_* if it wasn't - * processed, but currently always returns ERR_OK) - */ -err_t -ip4_input(struct pbuf *p, struct netif *inp) -{ - const struct ip_hdr *iphdr; - struct netif *netif; - u16_t iphdr_hlen; - u16_t iphdr_len; -#if IP_ACCEPT_LINK_LAYER_ADDRESSING || LWIP_IGMP - int check_ip_src = 1; -#endif /* IP_ACCEPT_LINK_LAYER_ADDRESSING || LWIP_IGMP */ -#if LWIP_RAW - raw_input_state_t raw_status; -#endif /* LWIP_RAW */ - - LWIP_ASSERT_CORE_LOCKED(); - - IP_STATS_INC(ip.recv); - MIB2_STATS_INC(mib2.ipinreceives); - - /* identify the IP header */ - iphdr = (struct ip_hdr *)p->payload; - if (IPH_V(iphdr) != 4) { - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_WARNING, ("IP packet dropped due to bad version number %"U16_F"\n", (u16_t)IPH_V(iphdr))); - ip4_debug_print(p); - pbuf_free(p); - IP_STATS_INC(ip.err); - IP_STATS_INC(ip.drop); - MIB2_STATS_INC(mib2.ipinhdrerrors); - return ERR_OK; - } - -#ifdef LWIP_HOOK_IP4_INPUT - if (LWIP_HOOK_IP4_INPUT(p, inp)) { - /* the packet has been eaten */ - return ERR_OK; - } -#endif - - /* obtain IP header length in bytes */ - iphdr_hlen = IPH_HL_BYTES(iphdr); - /* obtain ip length in bytes */ - iphdr_len = lwip_ntohs(IPH_LEN(iphdr)); - - /* Trim pbuf. This is especially required for packets < 60 bytes. */ - if (iphdr_len < p->tot_len) { - pbuf_realloc(p, iphdr_len); - } - - /* header length exceeds first pbuf length, or ip length exceeds total pbuf length? */ - if ((iphdr_hlen > p->len) || (iphdr_len > p->tot_len) || (iphdr_hlen < IP_HLEN)) { - if (iphdr_hlen < IP_HLEN) { - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("ip4_input: short IP header (%"U16_F" bytes) received, IP packet dropped\n", iphdr_hlen)); - } - if (iphdr_hlen > p->len) { - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("IP header (len %"U16_F") does not fit in first pbuf (len %"U16_F"), IP packet dropped.\n", - iphdr_hlen, p->len)); - } - if (iphdr_len > p->tot_len) { - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("IP (len %"U16_F") is longer than pbuf (len %"U16_F"), IP packet dropped.\n", - iphdr_len, p->tot_len)); - } - /* free (drop) packet pbufs */ - pbuf_free(p); - IP_STATS_INC(ip.lenerr); - IP_STATS_INC(ip.drop); - MIB2_STATS_INC(mib2.ipindiscards); - return ERR_OK; - } - - /* verify checksum */ -#if CHECKSUM_CHECK_IP - IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_CHECK_IP) { - if (inet_chksum(iphdr, iphdr_hlen) != 0) { - - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("Checksum (0x%"X16_F") failed, IP packet dropped.\n", inet_chksum(iphdr, iphdr_hlen))); - ip4_debug_print(p); - pbuf_free(p); - IP_STATS_INC(ip.chkerr); - IP_STATS_INC(ip.drop); - MIB2_STATS_INC(mib2.ipinhdrerrors); - return ERR_OK; - } - } -#endif - - /* copy IP addresses to aligned ip_addr_t */ - ip_addr_copy_from_ip4(ip_data.current_iphdr_dest, iphdr->dest); - ip_addr_copy_from_ip4(ip_data.current_iphdr_src, iphdr->src); - - /* match packet against an interface, i.e. is this packet for us? */ - if (ip4_addr_ismulticast(ip4_current_dest_addr())) { -#if LWIP_IGMP - if ((inp->flags & NETIF_FLAG_IGMP) && (igmp_lookfor_group(inp, ip4_current_dest_addr()))) { - /* IGMP snooping switches need 0.0.0.0 to be allowed as source address (RFC 4541) */ - ip4_addr_t allsystems; - IP4_ADDR(&allsystems, 224, 0, 0, 1); - if (ip4_addr_cmp(ip4_current_dest_addr(), &allsystems) && - ip4_addr_isany(ip4_current_src_addr())) { - check_ip_src = 0; - } - netif = inp; - } else { - netif = NULL; - } -#else /* LWIP_IGMP */ - if ((netif_is_up(inp)) && (!ip4_addr_isany_val(*netif_ip4_addr(inp)))) { - netif = inp; - } else { - netif = NULL; - } -#endif /* LWIP_IGMP */ - } else { - /* start trying with inp. if that's not acceptable, start walking the - list of configured netifs. */ - if (ip4_input_accept(inp)) { - netif = inp; - } else { - netif = NULL; -#if !LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF - /* Packets sent to the loopback address must not be accepted on an - * interface that does not have the loopback address assigned to it, - * unless a non-loopback interface is used for loopback traffic. */ - if (!ip4_addr_isloopback(ip4_current_dest_addr())) -#endif /* !LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF */ - { -#if !LWIP_SINGLE_NETIF - NETIF_FOREACH(netif) { - if (netif == inp) { - /* we checked that before already */ - continue; - } - if (ip4_input_accept(netif)) { - break; - } - } -#endif /* !LWIP_SINGLE_NETIF */ - } - } - } - -#if IP_ACCEPT_LINK_LAYER_ADDRESSING - /* Pass DHCP messages regardless of destination address. DHCP traffic is addressed - * using link layer addressing (such as Ethernet MAC) so we must not filter on IP. - * According to RFC 1542 section 3.1.1, referred by RFC 2131). - * - * If you want to accept private broadcast communication while a netif is down, - * define LWIP_IP_ACCEPT_UDP_PORT(dst_port), e.g.: - * - * #define LWIP_IP_ACCEPT_UDP_PORT(dst_port) ((dst_port) == PP_NTOHS(12345)) - */ - if (netif == NULL) { - /* remote port is DHCP server? */ - if (IPH_PROTO(iphdr) == IP_PROTO_UDP) { - const struct udp_hdr *udphdr = (const struct udp_hdr *)((const u8_t *)iphdr + iphdr_hlen); - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_TRACE, ("ip4_input: UDP packet to DHCP client port %"U16_F"\n", - lwip_ntohs(udphdr->dest))); - if (IP_ACCEPT_LINK_LAYER_ADDRESSED_PORT(udphdr->dest)) { - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_TRACE, ("ip4_input: DHCP packet accepted.\n")); - netif = inp; - check_ip_src = 0; - } - } - } -#endif /* IP_ACCEPT_LINK_LAYER_ADDRESSING */ - - /* broadcast or multicast packet source address? Compliant with RFC 1122: 3.2.1.3 */ -#if LWIP_IGMP || IP_ACCEPT_LINK_LAYER_ADDRESSING - if (check_ip_src -#if IP_ACCEPT_LINK_LAYER_ADDRESSING - /* DHCP servers need 0.0.0.0 to be allowed as source address (RFC 1.1.2.2: 3.2.1.3/a) */ - && !ip4_addr_isany_val(*ip4_current_src_addr()) -#endif /* IP_ACCEPT_LINK_LAYER_ADDRESSING */ - ) -#endif /* LWIP_IGMP || IP_ACCEPT_LINK_LAYER_ADDRESSING */ - { - if ((ip4_addr_isbroadcast(ip4_current_src_addr(), inp)) || - (ip4_addr_ismulticast(ip4_current_src_addr()))) { - /* packet source is not valid */ - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("ip4_input: packet source is not valid.\n")); - /* free (drop) packet pbufs */ - pbuf_free(p); - IP_STATS_INC(ip.drop); - MIB2_STATS_INC(mib2.ipinaddrerrors); - MIB2_STATS_INC(mib2.ipindiscards); - return ERR_OK; - } - } - - /* packet not for us? */ - if (netif == NULL) { - /* packet not for us, route or discard */ - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_TRACE, ("ip4_input: packet not for us.\n")); -#if IP_FORWARD - /* non-broadcast packet? */ - if (!ip4_addr_isbroadcast(ip4_current_dest_addr(), inp)) { - /* try to forward IP packet on (other) interfaces */ - ip4_forward(p, (struct ip_hdr *)p->payload, inp); - } else -#endif /* IP_FORWARD */ - { - IP_STATS_INC(ip.drop); - MIB2_STATS_INC(mib2.ipinaddrerrors); - MIB2_STATS_INC(mib2.ipindiscards); - } - pbuf_free(p); - return ERR_OK; - } - /* packet consists of multiple fragments? */ - if ((IPH_OFFSET(iphdr) & PP_HTONS(IP_OFFMASK | IP_MF)) != 0) { -#if IP_REASSEMBLY /* packet fragment reassembly code present? */ - LWIP_DEBUGF(IP_DEBUG, ("IP packet is a fragment (id=0x%04"X16_F" tot_len=%"U16_F" len=%"U16_F" MF=%"U16_F" offset=%"U16_F"), calling ip4_reass()\n", - lwip_ntohs(IPH_ID(iphdr)), p->tot_len, lwip_ntohs(IPH_LEN(iphdr)), (u16_t)!!(IPH_OFFSET(iphdr) & PP_HTONS(IP_MF)), (u16_t)((lwip_ntohs(IPH_OFFSET(iphdr)) & IP_OFFMASK) * 8))); - /* reassemble the packet*/ - p = ip4_reass(p); - /* packet not fully reassembled yet? */ - if (p == NULL) { - return ERR_OK; - } - iphdr = (const struct ip_hdr *)p->payload; -#else /* IP_REASSEMBLY == 0, no packet fragment reassembly code present */ - pbuf_free(p); - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("IP packet dropped since it was fragmented (0x%"X16_F") (while IP_REASSEMBLY == 0).\n", - lwip_ntohs(IPH_OFFSET(iphdr)))); - IP_STATS_INC(ip.opterr); - IP_STATS_INC(ip.drop); - /* unsupported protocol feature */ - MIB2_STATS_INC(mib2.ipinunknownprotos); - return ERR_OK; -#endif /* IP_REASSEMBLY */ - } - -#if IP_OPTIONS_ALLOWED == 0 /* no support for IP options in the IP header? */ - -#if LWIP_IGMP - /* there is an extra "router alert" option in IGMP messages which we allow for but do not police */ - if ((iphdr_hlen > IP_HLEN) && (IPH_PROTO(iphdr) != IP_PROTO_IGMP)) { -#else - if (iphdr_hlen > IP_HLEN) { -#endif /* LWIP_IGMP */ - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("IP packet dropped since there were IP options (while IP_OPTIONS_ALLOWED == 0).\n")); - pbuf_free(p); - IP_STATS_INC(ip.opterr); - IP_STATS_INC(ip.drop); - /* unsupported protocol feature */ - MIB2_STATS_INC(mib2.ipinunknownprotos); - return ERR_OK; - } -#endif /* IP_OPTIONS_ALLOWED == 0 */ - - /* send to upper layers */ - LWIP_DEBUGF(IP_DEBUG, ("ip4_input: \n")); - ip4_debug_print(p); - LWIP_DEBUGF(IP_DEBUG, ("ip4_input: p->len %"U16_F" p->tot_len %"U16_F"\n", p->len, p->tot_len)); - - ip_data.current_netif = netif; - ip_data.current_input_netif = inp; - ip_data.current_ip4_header = iphdr; - ip_data.current_ip_header_tot_len = IPH_HL_BYTES(iphdr); - -#if LWIP_RAW - /* raw input did not eat the packet? */ - raw_status = raw_input(p, inp); - if (raw_status != RAW_INPUT_EATEN) -#endif /* LWIP_RAW */ - { - pbuf_remove_header(p, iphdr_hlen); /* Move to payload, no check necessary. */ - - switch (IPH_PROTO(iphdr)) { -#if LWIP_UDP - case IP_PROTO_UDP: -#if LWIP_UDPLITE - case IP_PROTO_UDPLITE: -#endif /* LWIP_UDPLITE */ - MIB2_STATS_INC(mib2.ipindelivers); - udp_input(p, inp); - break; -#endif /* LWIP_UDP */ -#if LWIP_TCP - case IP_PROTO_TCP: - MIB2_STATS_INC(mib2.ipindelivers); - tcp_input(p, inp); - break; -#endif /* LWIP_TCP */ -#if LWIP_ICMP - case IP_PROTO_ICMP: - MIB2_STATS_INC(mib2.ipindelivers); - icmp_input(p, inp); - break; -#endif /* LWIP_ICMP */ -#if LWIP_IGMP - case IP_PROTO_IGMP: - igmp_input(p, inp, ip4_current_dest_addr()); - break; -#endif /* LWIP_IGMP */ - default: -#if LWIP_RAW - if (raw_status == RAW_INPUT_DELIVERED) { - MIB2_STATS_INC(mib2.ipindelivers); - } else -#endif /* LWIP_RAW */ - { -#if LWIP_ICMP - /* send ICMP destination protocol unreachable unless is was a broadcast */ - if (!ip4_addr_isbroadcast(ip4_current_dest_addr(), netif) && - !ip4_addr_ismulticast(ip4_current_dest_addr())) { - pbuf_header_force(p, (s16_t)iphdr_hlen); /* Move to ip header, no check necessary. */ - icmp_dest_unreach(p, ICMP_DUR_PROTO); - } -#endif /* LWIP_ICMP */ - - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("Unsupported transport protocol %"U16_F"\n", (u16_t)IPH_PROTO(iphdr))); - - IP_STATS_INC(ip.proterr); - IP_STATS_INC(ip.drop); - MIB2_STATS_INC(mib2.ipinunknownprotos); - } - pbuf_free(p); - break; - } - } - - /* @todo: this is not really necessary... */ - ip_data.current_netif = NULL; - ip_data.current_input_netif = NULL; - ip_data.current_ip4_header = NULL; - ip_data.current_ip_header_tot_len = 0; - ip4_addr_set_any(ip4_current_src_addr()); - ip4_addr_set_any(ip4_current_dest_addr()); - - return ERR_OK; -} - -/** - * Sends an IP packet on a network interface. This function constructs - * the IP header and calculates the IP header checksum. If the source - * IP address is NULL, the IP address of the outgoing network - * interface is filled in as source address. - * If the destination IP address is LWIP_IP_HDRINCL, p is assumed to already - * include an IP header and p->payload points to it instead of the data. - * - * @param p the packet to send (p->payload points to the data, e.g. next - protocol header; if dest == LWIP_IP_HDRINCL, p already includes an - IP header and p->payload points to that IP header) - * @param src the source IP address to send from (if src == IP4_ADDR_ANY, the - * IP address of the netif used to send is used as source address) - * @param dest the destination IP address to send the packet to - * @param ttl the TTL value to be set in the IP header - * @param tos the TOS value to be set in the IP header - * @param proto the PROTOCOL to be set in the IP header - * @param netif the netif on which to send this packet - * @return ERR_OK if the packet was sent OK - * ERR_BUF if p doesn't have enough space for IP/LINK headers - * returns errors returned by netif->output - * - * @note ip_id: RFC791 "some host may be able to simply use - * unique identifiers independent of destination" - */ -err_t -ip4_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, - u8_t proto, struct netif *netif) -{ -#if IP_OPTIONS_SEND - return ip4_output_if_opt(p, src, dest, ttl, tos, proto, netif, NULL, 0); -} - -/** - * Same as ip_output_if() but with the possibility to include IP options: - * - * @ param ip_options pointer to the IP options, copied into the IP header - * @ param optlen length of ip_options - */ -err_t -ip4_output_if_opt(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options, - u16_t optlen) -{ -#endif /* IP_OPTIONS_SEND */ - const ip4_addr_t *src_used = src; - if (dest != LWIP_IP_HDRINCL) { - if (ip4_addr_isany(src)) { - src_used = netif_ip4_addr(netif); - } - } - -#if IP_OPTIONS_SEND - return ip4_output_if_opt_src(p, src_used, dest, ttl, tos, proto, netif, - ip_options, optlen); -#else /* IP_OPTIONS_SEND */ - return ip4_output_if_src(p, src_used, dest, ttl, tos, proto, netif); -#endif /* IP_OPTIONS_SEND */ -} - -/** - * Same as ip_output_if() but 'src' address is not replaced by netif address - * when it is 'any'. - */ -err_t -ip4_output_if_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, - u8_t proto, struct netif *netif) -{ -#if IP_OPTIONS_SEND - return ip4_output_if_opt_src(p, src, dest, ttl, tos, proto, netif, NULL, 0); -} - -/** - * Same as ip_output_if_opt() but 'src' address is not replaced by netif address - * when it is 'any'. - */ -err_t -ip4_output_if_opt_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options, - u16_t optlen) -{ -#endif /* IP_OPTIONS_SEND */ - struct ip_hdr *iphdr; - ip4_addr_t dest_addr; -#if CHECKSUM_GEN_IP_INLINE - u32_t chk_sum = 0; -#endif /* CHECKSUM_GEN_IP_INLINE */ - - LWIP_ASSERT_CORE_LOCKED(); - LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); - - MIB2_STATS_INC(mib2.ipoutrequests); - - /* Should the IP header be generated or is it already included in p? */ - if (dest != LWIP_IP_HDRINCL) { - u16_t ip_hlen = IP_HLEN; -#if IP_OPTIONS_SEND - u16_t optlen_aligned = 0; - if (optlen != 0) { -#if CHECKSUM_GEN_IP_INLINE - int i; -#endif /* CHECKSUM_GEN_IP_INLINE */ - if (optlen > (IP_HLEN_MAX - IP_HLEN)) { - /* optlen too long */ - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip4_output_if_opt: optlen too long\n")); - IP_STATS_INC(ip.err); - MIB2_STATS_INC(mib2.ipoutdiscards); - return ERR_VAL; - } - /* round up to a multiple of 4 */ - optlen_aligned = (u16_t)((optlen + 3) & ~3); - ip_hlen = (u16_t)(ip_hlen + optlen_aligned); - /* First write in the IP options */ - if (pbuf_add_header(p, optlen_aligned)) { - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip4_output_if_opt: not enough room for IP options in pbuf\n")); - IP_STATS_INC(ip.err); - MIB2_STATS_INC(mib2.ipoutdiscards); - return ERR_BUF; - } - MEMCPY(p->payload, ip_options, optlen); - if (optlen < optlen_aligned) { - /* zero the remaining bytes */ - memset(((char *)p->payload) + optlen, 0, (size_t)(optlen_aligned - optlen)); - } -#if CHECKSUM_GEN_IP_INLINE - for (i = 0; i < optlen_aligned / 2; i++) { - chk_sum += ((u16_t *)p->payload)[i]; - } -#endif /* CHECKSUM_GEN_IP_INLINE */ - } -#endif /* IP_OPTIONS_SEND */ - /* generate IP header */ - if (pbuf_add_header(p, IP_HLEN)) { - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip4_output: not enough room for IP header in pbuf\n")); - - IP_STATS_INC(ip.err); - MIB2_STATS_INC(mib2.ipoutdiscards); - return ERR_BUF; - } - - iphdr = (struct ip_hdr *)p->payload; - LWIP_ASSERT("check that first pbuf can hold struct ip_hdr", - (p->len >= sizeof(struct ip_hdr))); - - IPH_TTL_SET(iphdr, ttl); - IPH_PROTO_SET(iphdr, proto); -#if CHECKSUM_GEN_IP_INLINE - chk_sum += PP_NTOHS(proto | (ttl << 8)); -#endif /* CHECKSUM_GEN_IP_INLINE */ - - /* dest cannot be NULL here */ - ip4_addr_copy(iphdr->dest, *dest); -#if CHECKSUM_GEN_IP_INLINE - chk_sum += ip4_addr_get_u32(&iphdr->dest) & 0xFFFF; - chk_sum += ip4_addr_get_u32(&iphdr->dest) >> 16; -#endif /* CHECKSUM_GEN_IP_INLINE */ - - IPH_VHL_SET(iphdr, 4, ip_hlen / 4); - IPH_TOS_SET(iphdr, tos); -#if CHECKSUM_GEN_IP_INLINE - chk_sum += PP_NTOHS(tos | (iphdr->_v_hl << 8)); -#endif /* CHECKSUM_GEN_IP_INLINE */ - IPH_LEN_SET(iphdr, lwip_htons(p->tot_len)); -#if CHECKSUM_GEN_IP_INLINE - chk_sum += iphdr->_len; -#endif /* CHECKSUM_GEN_IP_INLINE */ - IPH_OFFSET_SET(iphdr, 0); - IPH_ID_SET(iphdr, lwip_htons(ip_id)); -#if CHECKSUM_GEN_IP_INLINE - chk_sum += iphdr->_id; -#endif /* CHECKSUM_GEN_IP_INLINE */ - ++ip_id; - - if (src == NULL) { - ip4_addr_copy(iphdr->src, *IP4_ADDR_ANY4); - } else { - /* src cannot be NULL here */ - ip4_addr_copy(iphdr->src, *src); - } - -#if CHECKSUM_GEN_IP_INLINE - chk_sum += ip4_addr_get_u32(&iphdr->src) & 0xFFFF; - chk_sum += ip4_addr_get_u32(&iphdr->src) >> 16; - chk_sum = (chk_sum >> 16) + (chk_sum & 0xFFFF); - chk_sum = (chk_sum >> 16) + chk_sum; - chk_sum = ~chk_sum; - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_IP) { - iphdr->_chksum = (u16_t)chk_sum; /* network order */ - } -#if LWIP_CHECKSUM_CTRL_PER_NETIF - else { - IPH_CHKSUM_SET(iphdr, 0); - } -#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF*/ -#else /* CHECKSUM_GEN_IP_INLINE */ - IPH_CHKSUM_SET(iphdr, 0); -#if CHECKSUM_GEN_IP - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_IP) { - IPH_CHKSUM_SET(iphdr, inet_chksum(iphdr, ip_hlen)); - } -#endif /* CHECKSUM_GEN_IP */ -#endif /* CHECKSUM_GEN_IP_INLINE */ - } else { - /* IP header already included in p */ - if (p->len < IP_HLEN) { - LWIP_DEBUGF(IP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip4_output: LWIP_IP_HDRINCL but pbuf is too short\n")); - IP_STATS_INC(ip.err); - MIB2_STATS_INC(mib2.ipoutdiscards); - return ERR_BUF; - } - iphdr = (struct ip_hdr *)p->payload; - ip4_addr_copy(dest_addr, iphdr->dest); - dest = &dest_addr; - } - - IP_STATS_INC(ip.xmit); - - LWIP_DEBUGF(IP_DEBUG, ("ip4_output_if: %c%c%"U16_F"\n", netif->name[0], netif->name[1], (u16_t)netif->num)); - ip4_debug_print(p); - -#if ENABLE_LOOPBACK - if (ip4_addr_cmp(dest, netif_ip4_addr(netif)) -#if !LWIP_HAVE_LOOPIF - || ip4_addr_isloopback(dest) -#endif /* !LWIP_HAVE_LOOPIF */ - ) { - /* Packet to self, enqueue it for loopback */ - LWIP_DEBUGF(IP_DEBUG, ("netif_loop_output()")); - return netif_loop_output(netif, p); - } -#if LWIP_MULTICAST_TX_OPTIONS - if ((p->flags & PBUF_FLAG_MCASTLOOP) != 0) { - netif_loop_output(netif, p); - } -#endif /* LWIP_MULTICAST_TX_OPTIONS */ -#endif /* ENABLE_LOOPBACK */ -#if IP_FRAG - /* don't fragment if interface has mtu set to 0 [loopif] */ - if (netif->mtu && (p->tot_len > netif->mtu)) { - return ip4_frag(p, netif, dest); - } -#endif /* IP_FRAG */ - - LWIP_DEBUGF(IP_DEBUG, ("ip4_output_if: call netif->output()\n")); - return netif->output(netif, p, dest); -} - -/** - * Simple interface to ip_output_if. It finds the outgoing network - * interface and calls upon ip_output_if to do the actual work. - * - * @param p the packet to send (p->payload points to the data, e.g. next - protocol header; if dest == LWIP_IP_HDRINCL, p already includes an - IP header and p->payload points to that IP header) - * @param src the source IP address to send from (if src == IP4_ADDR_ANY, the - * IP address of the netif used to send is used as source address) - * @param dest the destination IP address to send the packet to - * @param ttl the TTL value to be set in the IP header - * @param tos the TOS value to be set in the IP header - * @param proto the PROTOCOL to be set in the IP header - * - * @return ERR_RTE if no route is found - * see ip_output_if() for more return values - */ -err_t -ip4_output(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, u8_t proto) -{ - struct netif *netif; - - LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); - - if ((netif = ip4_route_src(src, dest)) == NULL) { - LWIP_DEBUGF(IP_DEBUG, ("ip4_output: No route to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - ip4_addr1_16(dest), ip4_addr2_16(dest), ip4_addr3_16(dest), ip4_addr4_16(dest))); - IP_STATS_INC(ip.rterr); - return ERR_RTE; - } - - return ip4_output_if(p, src, dest, ttl, tos, proto, netif); -} - -#if LWIP_NETIF_USE_HINTS -/** Like ip_output, but takes and addr_hint pointer that is passed on to netif->addr_hint - * before calling ip_output_if. - * - * @param p the packet to send (p->payload points to the data, e.g. next - protocol header; if dest == LWIP_IP_HDRINCL, p already includes an - IP header and p->payload points to that IP header) - * @param src the source IP address to send from (if src == IP4_ADDR_ANY, the - * IP address of the netif used to send is used as source address) - * @param dest the destination IP address to send the packet to - * @param ttl the TTL value to be set in the IP header - * @param tos the TOS value to be set in the IP header - * @param proto the PROTOCOL to be set in the IP header - * @param netif_hint netif output hint pointer set to netif->hint before - * calling ip_output_if() - * - * @return ERR_RTE if no route is found - * see ip_output_if() for more return values - */ -err_t -ip4_output_hinted(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, u8_t proto, struct netif_hint *netif_hint) -{ - struct netif *netif; - err_t err; - - LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); - - if ((netif = ip4_route_src(src, dest)) == NULL) { - LWIP_DEBUGF(IP_DEBUG, ("ip4_output: No route to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - ip4_addr1_16(dest), ip4_addr2_16(dest), ip4_addr3_16(dest), ip4_addr4_16(dest))); - IP_STATS_INC(ip.rterr); - return ERR_RTE; - } - - NETIF_SET_HINTS(netif, netif_hint); - err = ip4_output_if(p, src, dest, ttl, tos, proto, netif); - NETIF_RESET_HINTS(netif); - - return err; -} -#endif /* LWIP_NETIF_USE_HINTS*/ - -#if IP_DEBUG -/* Print an IP header by using LWIP_DEBUGF - * @param p an IP packet, p->payload pointing to the IP header - */ -void -ip4_debug_print(struct pbuf *p) -{ - struct ip_hdr *iphdr = (struct ip_hdr *)p->payload; - - LWIP_DEBUGF(IP_DEBUG, ("IP header:\n")); - LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(IP_DEBUG, ("|%2"S16_F" |%2"S16_F" | 0x%02"X16_F" | %5"U16_F" | (v, hl, tos, len)\n", - (u16_t)IPH_V(iphdr), - (u16_t)IPH_HL(iphdr), - (u16_t)IPH_TOS(iphdr), - lwip_ntohs(IPH_LEN(iphdr)))); - LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(IP_DEBUG, ("| %5"U16_F" |%"U16_F"%"U16_F"%"U16_F"| %4"U16_F" | (id, flags, offset)\n", - lwip_ntohs(IPH_ID(iphdr)), - (u16_t)(lwip_ntohs(IPH_OFFSET(iphdr)) >> 15 & 1), - (u16_t)(lwip_ntohs(IPH_OFFSET(iphdr)) >> 14 & 1), - (u16_t)(lwip_ntohs(IPH_OFFSET(iphdr)) >> 13 & 1), - (u16_t)(lwip_ntohs(IPH_OFFSET(iphdr)) & IP_OFFMASK))); - LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(IP_DEBUG, ("| %3"U16_F" | %3"U16_F" | 0x%04"X16_F" | (ttl, proto, chksum)\n", - (u16_t)IPH_TTL(iphdr), - (u16_t)IPH_PROTO(iphdr), - lwip_ntohs(IPH_CHKSUM(iphdr)))); - LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(IP_DEBUG, ("| %3"U16_F" | %3"U16_F" | %3"U16_F" | %3"U16_F" | (src)\n", - ip4_addr1_16_val(iphdr->src), - ip4_addr2_16_val(iphdr->src), - ip4_addr3_16_val(iphdr->src), - ip4_addr4_16_val(iphdr->src))); - LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(IP_DEBUG, ("| %3"U16_F" | %3"U16_F" | %3"U16_F" | %3"U16_F" | (dest)\n", - ip4_addr1_16_val(iphdr->dest), - ip4_addr2_16_val(iphdr->dest), - ip4_addr3_16_val(iphdr->dest), - ip4_addr4_16_val(iphdr->dest))); - LWIP_DEBUGF(IP_DEBUG, ("+-------------------------------+\n")); -} -#endif /* IP_DEBUG */ - -#endif /* LWIP_IPV4 */ diff --git a/core/c/core/ipv4/ip4_addr.c b/core/c/core/ipv4/ip4_addr.c deleted file mode 100755 index 92077c2..0000000 --- a/core/c/core/ipv4/ip4_addr.c +++ /dev/null @@ -1,321 +0,0 @@ -/** - * @file - * This is the IPv4 address tools implementation. - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV4 - -#include "lwip/ip_addr.h" -#include "lwip/netif.h" - -/* used by IP4_ADDR_ANY and IP_ADDR_BROADCAST in ip_addr.h */ -const ip_addr_t ip_addr_any = IPADDR4_INIT(IPADDR_ANY); -const ip_addr_t ip_addr_broadcast = IPADDR4_INIT(IPADDR_BROADCAST); - -/** - * Determine if an address is a broadcast address on a network interface - * - * @param addr address to be checked - * @param netif the network interface against which the address is checked - * @return returns non-zero if the address is a broadcast address - */ -u8_t -ip4_addr_isbroadcast_u32(u32_t addr, const struct netif *netif) -{ - ip4_addr_t ipaddr; - ip4_addr_set_u32(&ipaddr, addr); - - /* all ones (broadcast) or all zeroes (old skool broadcast) */ - if ((~addr == IPADDR_ANY) || - (addr == IPADDR_ANY)) { - return 1; - /* no broadcast support on this network interface? */ - } else if ((netif->flags & NETIF_FLAG_BROADCAST) == 0) { - /* the given address cannot be a broadcast address - * nor can we check against any broadcast addresses */ - return 0; - /* address matches network interface address exactly? => no broadcast */ - } else if (addr == ip4_addr_get_u32(netif_ip4_addr(netif))) { - return 0; - /* on the same (sub) network... */ - } else if (ip4_addr_netcmp(&ipaddr, netif_ip4_addr(netif), netif_ip4_netmask(netif)) - /* ...and host identifier bits are all ones? =>... */ - && ((addr & ~ip4_addr_get_u32(netif_ip4_netmask(netif))) == - (IPADDR_BROADCAST & ~ip4_addr_get_u32(netif_ip4_netmask(netif))))) { - /* => network broadcast address */ - return 1; - } else { - return 0; - } -} - -/** Checks if a netmask is valid (starting with ones, then only zeros) - * - * @param netmask the IPv4 netmask to check (in network byte order!) - * @return 1 if the netmask is valid, 0 if it is not - */ -u8_t -ip4_addr_netmask_valid(u32_t netmask) -{ - u32_t mask; - u32_t nm_hostorder = lwip_htonl(netmask); - - /* first, check for the first zero */ - for (mask = 1UL << 31 ; mask != 0; mask >>= 1) { - if ((nm_hostorder & mask) == 0) { - break; - } - } - /* then check that there is no one */ - for (; mask != 0; mask >>= 1) { - if ((nm_hostorder & mask) != 0) { - /* there is a one after the first zero -> invalid */ - return 0; - } - } - /* no one after the first zero -> valid */ - return 1; -} - -/** - * Ascii internet address interpretation routine. - * The value returned is in network order. - * - * @param cp IP address in ascii representation (e.g. "127.0.0.1") - * @return ip address in network order - */ -u32_t -ipaddr_addr(const char *cp) -{ - ip4_addr_t val; - - if (ip4addr_aton(cp, &val)) { - return ip4_addr_get_u32(&val); - } - return (IPADDR_NONE); -} - -/** - * Check whether "cp" is a valid ascii representation - * of an Internet address and convert to a binary address. - * Returns 1 if the address is valid, 0 if not. - * This replaces inet_addr, the return value from which - * cannot distinguish between failure and a local broadcast address. - * - * @param cp IP address in ascii representation (e.g. "127.0.0.1") - * @param addr pointer to which to save the ip address in network order - * @return 1 if cp could be converted to addr, 0 on failure - */ -int -ip4addr_aton(const char *cp, ip4_addr_t *addr) -{ - u32_t val; - u8_t base; - char c; - u32_t parts[4]; - u32_t *pp = parts; - - c = *cp; - for (;;) { - /* - * Collect number up to ``.''. - * Values are specified as for C: - * 0x=hex, 0=octal, 1-9=decimal. - */ - if (!lwip_isdigit(c)) { - return 0; - } - val = 0; - base = 10; - if (c == '0') { - c = *++cp; - if (c == 'x' || c == 'X') { - base = 16; - c = *++cp; - } else { - base = 8; - } - } - for (;;) { - if (lwip_isdigit(c)) { - val = (val * base) + (u32_t)(c - '0'); - c = *++cp; - } else if (base == 16 && lwip_isxdigit(c)) { - val = (val << 4) | (u32_t)(c + 10 - (lwip_islower(c) ? 'a' : 'A')); - c = *++cp; - } else { - break; - } - } - if (c == '.') { - /* - * Internet format: - * a.b.c.d - * a.b.c (with c treated as 16 bits) - * a.b (with b treated as 24 bits) - */ - if (pp >= parts + 3) { - return 0; - } - *pp++ = val; - c = *++cp; - } else { - break; - } - } - /* - * Check for trailing characters. - */ - if (c != '\0' && !lwip_isspace(c)) { - return 0; - } - /* - * Concoct the address according to - * the number of parts specified. - */ - switch (pp - parts + 1) { - - case 0: - return 0; /* initial nondigit */ - - case 1: /* a -- 32 bits */ - break; - - case 2: /* a.b -- 8.24 bits */ - if (val > 0xffffffUL) { - return 0; - } - if (parts[0] > 0xff) { - return 0; - } - val |= parts[0] << 24; - break; - - case 3: /* a.b.c -- 8.8.16 bits */ - if (val > 0xffff) { - return 0; - } - if ((parts[0] > 0xff) || (parts[1] > 0xff)) { - return 0; - } - val |= (parts[0] << 24) | (parts[1] << 16); - break; - - case 4: /* a.b.c.d -- 8.8.8.8 bits */ - if (val > 0xff) { - return 0; - } - if ((parts[0] > 0xff) || (parts[1] > 0xff) || (parts[2] > 0xff)) { - return 0; - } - val |= (parts[0] << 24) | (parts[1] << 16) | (parts[2] << 8); - break; - default: - LWIP_ASSERT("unhandled", 0); - break; - } - if (addr) { - ip4_addr_set_u32(addr, lwip_htonl(val)); - } - return 1; -} - -/** - * Convert numeric IP address into decimal dotted ASCII representation. - * returns ptr to static buffer; not reentrant! - * - * @param addr ip address in network order to convert - * @return pointer to a global static (!) buffer that holds the ASCII - * representation of addr - */ -char * -ip4addr_ntoa(const ip4_addr_t *addr) -{ - static char str[IP4ADDR_STRLEN_MAX]; - return ip4addr_ntoa_r(addr, str, IP4ADDR_STRLEN_MAX); -} - -/** - * Same as ip4addr_ntoa, but reentrant since a user-supplied buffer is used. - * - * @param addr ip address in network order to convert - * @param buf target buffer where the string is stored - * @param buflen length of buf - * @return either pointer to buf which now holds the ASCII - * representation of addr or NULL if buf was too small - */ -char * -ip4addr_ntoa_r(const ip4_addr_t *addr, char *buf, int buflen) -{ - u32_t s_addr; - char inv[3]; - char *rp; - u8_t *ap; - u8_t rem; - u8_t n; - u8_t i; - int len = 0; - - s_addr = ip4_addr_get_u32(addr); - - rp = buf; - ap = (u8_t *)&s_addr; - for (n = 0; n < 4; n++) { - i = 0; - do { - rem = *ap % (u8_t)10; - *ap /= (u8_t)10; - inv[i++] = (char)('0' + rem); - } while (*ap); - while (i--) { - if (len++ >= buflen) { - return NULL; - } - *rp++ = inv[i]; - } - if (len++ >= buflen) { - return NULL; - } - *rp++ = '.'; - ap++; - } - *--rp = 0; - return buf; -} - -#endif /* LWIP_IPV4 */ diff --git a/core/c/core/ipv4/ip4_frag.c b/core/c/core/ipv4/ip4_frag.c deleted file mode 100755 index b2fd14c..0000000 --- a/core/c/core/ipv4/ip4_frag.c +++ /dev/null @@ -1,894 +0,0 @@ -/** - * @file - * This is the IPv4 packet segmentation and reassembly implementation. - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Jani Monoses - * Simon Goldschmidt - * original reassembly code by Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV4 - -#include "lwip/ip4_frag.h" -#include "lwip/def.h" -#include "lwip/inet_chksum.h" -#include "lwip/netif.h" -#include "lwip/stats.h" -#include "lwip/icmp.h" - -#include - -#if IP_REASSEMBLY -/** - * The IP reassembly code currently has the following limitations: - * - IP header options are not supported - * - fragments must not overlap (e.g. due to different routes), - * currently, overlapping or duplicate fragments are thrown away - * if IP_REASS_CHECK_OVERLAP=1 (the default)! - * - * @todo: work with IP header options - */ - -/** Setting this to 0, you can turn off checking the fragments for overlapping - * regions. The code gets a little smaller. Only use this if you know that - * overlapping won't occur on your network! */ -#ifndef IP_REASS_CHECK_OVERLAP -#define IP_REASS_CHECK_OVERLAP 1 -#endif /* IP_REASS_CHECK_OVERLAP */ - -/** Set to 0 to prevent freeing the oldest datagram when the reassembly buffer is - * full (IP_REASS_MAX_PBUFS pbufs are enqueued). The code gets a little smaller. - * Datagrams will be freed by timeout only. Especially useful when MEMP_NUM_REASSDATA - * is set to 1, so one datagram can be reassembled at a time, only. */ -#ifndef IP_REASS_FREE_OLDEST -#define IP_REASS_FREE_OLDEST 1 -#endif /* IP_REASS_FREE_OLDEST */ - -#define IP_REASS_FLAG_LASTFRAG 0x01 - -#define IP_REASS_VALIDATE_TELEGRAM_FINISHED 1 -#define IP_REASS_VALIDATE_PBUF_QUEUED 0 -#define IP_REASS_VALIDATE_PBUF_DROPPED -1 - -/** This is a helper struct which holds the starting - * offset and the ending offset of this fragment to - * easily chain the fragments. - * It has the same packing requirements as the IP header, since it replaces - * the IP header in memory in incoming fragments (after copying it) to keep - * track of the various fragments. (-> If the IP header doesn't need packing, - * this struct doesn't need packing, too.) - */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip_reass_helper { - PACK_STRUCT_FIELD(struct pbuf *next_pbuf); - PACK_STRUCT_FIELD(u16_t start); - PACK_STRUCT_FIELD(u16_t end); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -#define IP_ADDRESSES_AND_ID_MATCH(iphdrA, iphdrB) \ - (ip4_addr_cmp(&(iphdrA)->src, &(iphdrB)->src) && \ - ip4_addr_cmp(&(iphdrA)->dest, &(iphdrB)->dest) && \ - IPH_ID(iphdrA) == IPH_ID(iphdrB)) ? 1 : 0 - -/* global variables */ -static struct ip_reassdata *reassdatagrams; -static u16_t ip_reass_pbufcount; - -/* function prototypes */ -static void ip_reass_dequeue_datagram(struct ip_reassdata *ipr, struct ip_reassdata *prev); -static int ip_reass_free_complete_datagram(struct ip_reassdata *ipr, struct ip_reassdata *prev); - -/** - * Reassembly timer base function - * for both NO_SYS == 0 and 1 (!). - * - * Should be called every 1000 msec (defined by IP_TMR_INTERVAL). - */ -void -ip_reass_tmr(void) -{ - struct ip_reassdata *r, *prev = NULL; - - r = reassdatagrams; - while (r != NULL) { - /* Decrement the timer. Once it reaches 0, - * clean up the incomplete fragment assembly */ - if (r->timer > 0) { - r->timer--; - LWIP_DEBUGF(IP_REASS_DEBUG, ("ip_reass_tmr: timer dec %"U16_F"\n", (u16_t)r->timer)); - prev = r; - r = r->next; - } else { - /* reassembly timed out */ - struct ip_reassdata *tmp; - LWIP_DEBUGF(IP_REASS_DEBUG, ("ip_reass_tmr: timer timed out\n")); - tmp = r; - /* get the next pointer before freeing */ - r = r->next; - /* free the helper struct and all enqueued pbufs */ - ip_reass_free_complete_datagram(tmp, prev); - } - } -} - -/** - * Free a datagram (struct ip_reassdata) and all its pbufs. - * Updates the total count of enqueued pbufs (ip_reass_pbufcount), - * SNMP counters and sends an ICMP time exceeded packet. - * - * @param ipr datagram to free - * @param prev the previous datagram in the linked list - * @return the number of pbufs freed - */ -static int -ip_reass_free_complete_datagram(struct ip_reassdata *ipr, struct ip_reassdata *prev) -{ - u16_t pbufs_freed = 0; - u16_t clen; - struct pbuf *p; - struct ip_reass_helper *iprh; - - LWIP_ASSERT("prev != ipr", prev != ipr); - if (prev != NULL) { - LWIP_ASSERT("prev->next == ipr", prev->next == ipr); - } - - MIB2_STATS_INC(mib2.ipreasmfails); -#if LWIP_ICMP - iprh = (struct ip_reass_helper *)ipr->p->payload; - if (iprh->start == 0) { - /* The first fragment was received, send ICMP time exceeded. */ - /* First, de-queue the first pbuf from r->p. */ - p = ipr->p; - ipr->p = iprh->next_pbuf; - /* Then, copy the original header into it. */ - SMEMCPY(p->payload, &ipr->iphdr, IP_HLEN); - icmp_time_exceeded(p, ICMP_TE_FRAG); - clen = pbuf_clen(p); - LWIP_ASSERT("pbufs_freed + clen <= 0xffff", pbufs_freed + clen <= 0xffff); - pbufs_freed = (u16_t)(pbufs_freed + clen); - pbuf_free(p); - } -#endif /* LWIP_ICMP */ - - /* First, free all received pbufs. The individual pbufs need to be released - separately as they have not yet been chained */ - p = ipr->p; - while (p != NULL) { - struct pbuf *pcur; - iprh = (struct ip_reass_helper *)p->payload; - pcur = p; - /* get the next pointer before freeing */ - p = iprh->next_pbuf; - clen = pbuf_clen(pcur); - LWIP_ASSERT("pbufs_freed + clen <= 0xffff", pbufs_freed + clen <= 0xffff); - pbufs_freed = (u16_t)(pbufs_freed + clen); - pbuf_free(pcur); - } - /* Then, unchain the struct ip_reassdata from the list and free it. */ - ip_reass_dequeue_datagram(ipr, prev); - LWIP_ASSERT("ip_reass_pbufcount >= pbufs_freed", ip_reass_pbufcount >= pbufs_freed); - ip_reass_pbufcount = (u16_t)(ip_reass_pbufcount - pbufs_freed); - - return pbufs_freed; -} - -#if IP_REASS_FREE_OLDEST -/** - * Free the oldest datagram to make room for enqueueing new fragments. - * The datagram 'fraghdr' belongs to is not freed! - * - * @param fraghdr IP header of the current fragment - * @param pbufs_needed number of pbufs needed to enqueue - * (used for freeing other datagrams if not enough space) - * @return the number of pbufs freed - */ -static int -ip_reass_remove_oldest_datagram(struct ip_hdr *fraghdr, int pbufs_needed) -{ - /* @todo Can't we simply remove the last datagram in the - * linked list behind reassdatagrams? - */ - struct ip_reassdata *r, *oldest, *prev, *oldest_prev; - int pbufs_freed = 0, pbufs_freed_current; - int other_datagrams; - - /* Free datagrams until being allowed to enqueue 'pbufs_needed' pbufs, - * but don't free the datagram that 'fraghdr' belongs to! */ - do { - oldest = NULL; - prev = NULL; - oldest_prev = NULL; - other_datagrams = 0; - r = reassdatagrams; - while (r != NULL) { - if (!IP_ADDRESSES_AND_ID_MATCH(&r->iphdr, fraghdr)) { - /* Not the same datagram as fraghdr */ - other_datagrams++; - if (oldest == NULL) { - oldest = r; - oldest_prev = prev; - } else if (r->timer <= oldest->timer) { - /* older than the previous oldest */ - oldest = r; - oldest_prev = prev; - } - } - if (r->next != NULL) { - prev = r; - } - r = r->next; - } - if (oldest != NULL) { - pbufs_freed_current = ip_reass_free_complete_datagram(oldest, oldest_prev); - pbufs_freed += pbufs_freed_current; - } - } while ((pbufs_freed < pbufs_needed) && (other_datagrams > 1)); - return pbufs_freed; -} -#endif /* IP_REASS_FREE_OLDEST */ - -/** - * Enqueues a new fragment into the fragment queue - * @param fraghdr points to the new fragments IP hdr - * @param clen number of pbufs needed to enqueue (used for freeing other datagrams if not enough space) - * @return A pointer to the queue location into which the fragment was enqueued - */ -static struct ip_reassdata * -ip_reass_enqueue_new_datagram(struct ip_hdr *fraghdr, int clen) -{ - struct ip_reassdata *ipr; -#if ! IP_REASS_FREE_OLDEST - LWIP_UNUSED_ARG(clen); -#endif - - /* No matching previous fragment found, allocate a new reassdata struct */ - ipr = (struct ip_reassdata *)memp_malloc(MEMP_REASSDATA); - if (ipr == NULL) { -#if IP_REASS_FREE_OLDEST - if (ip_reass_remove_oldest_datagram(fraghdr, clen) >= clen) { - ipr = (struct ip_reassdata *)memp_malloc(MEMP_REASSDATA); - } - if (ipr == NULL) -#endif /* IP_REASS_FREE_OLDEST */ - { - IPFRAG_STATS_INC(ip_frag.memerr); - LWIP_DEBUGF(IP_REASS_DEBUG, ("Failed to alloc reassdata struct\n")); - return NULL; - } - } - memset(ipr, 0, sizeof(struct ip_reassdata)); - ipr->timer = IP_REASS_MAXAGE; - - /* enqueue the new structure to the front of the list */ - ipr->next = reassdatagrams; - reassdatagrams = ipr; - /* copy the ip header for later tests and input */ - /* @todo: no ip options supported? */ - SMEMCPY(&(ipr->iphdr), fraghdr, IP_HLEN); - return ipr; -} - -/** - * Dequeues a datagram from the datagram queue. Doesn't deallocate the pbufs. - * @param ipr points to the queue entry to dequeue - */ -static void -ip_reass_dequeue_datagram(struct ip_reassdata *ipr, struct ip_reassdata *prev) -{ - /* dequeue the reass struct */ - if (reassdatagrams == ipr) { - /* it was the first in the list */ - reassdatagrams = ipr->next; - } else { - /* it wasn't the first, so it must have a valid 'prev' */ - LWIP_ASSERT("sanity check linked list", prev != NULL); - prev->next = ipr->next; - } - - /* now we can free the ip_reassdata struct */ - memp_free(MEMP_REASSDATA, ipr); -} - -/** - * Chain a new pbuf into the pbuf list that composes the datagram. The pbuf list - * will grow over time as new pbufs are rx. - * Also checks that the datagram passes basic continuity checks (if the last - * fragment was received at least once). - * @param ipr points to the reassembly state - * @param new_p points to the pbuf for the current fragment - * @param is_last is 1 if this pbuf has MF==0 (ipr->flags not updated yet) - * @return see IP_REASS_VALIDATE_* defines - */ -static int -ip_reass_chain_frag_into_datagram_and_validate(struct ip_reassdata *ipr, struct pbuf *new_p, int is_last) -{ - struct ip_reass_helper *iprh, *iprh_tmp, *iprh_prev = NULL; - struct pbuf *q; - u16_t offset, len; - u8_t hlen; - struct ip_hdr *fraghdr; - int valid = 1; - - /* Extract length and fragment offset from current fragment */ - fraghdr = (struct ip_hdr *)new_p->payload; - len = lwip_ntohs(IPH_LEN(fraghdr)); - hlen = IPH_HL_BYTES(fraghdr); - if (hlen > len) { - /* invalid datagram */ - return IP_REASS_VALIDATE_PBUF_DROPPED; - } - len = (u16_t)(len - hlen); - offset = IPH_OFFSET_BYTES(fraghdr); - - /* overwrite the fragment's ip header from the pbuf with our helper struct, - * and setup the embedded helper structure. */ - /* make sure the struct ip_reass_helper fits into the IP header */ - LWIP_ASSERT("sizeof(struct ip_reass_helper) <= IP_HLEN", - sizeof(struct ip_reass_helper) <= IP_HLEN); - iprh = (struct ip_reass_helper *)new_p->payload; - iprh->next_pbuf = NULL; - iprh->start = offset; - iprh->end = (u16_t)(offset + len); - if (iprh->end < offset) { - /* u16_t overflow, cannot handle this */ - return IP_REASS_VALIDATE_PBUF_DROPPED; - } - - /* Iterate through until we either get to the end of the list (append), - * or we find one with a larger offset (insert). */ - for (q = ipr->p; q != NULL;) { - iprh_tmp = (struct ip_reass_helper *)q->payload; - if (iprh->start < iprh_tmp->start) { - /* the new pbuf should be inserted before this */ - iprh->next_pbuf = q; - if (iprh_prev != NULL) { - /* not the fragment with the lowest offset */ -#if IP_REASS_CHECK_OVERLAP - if ((iprh->start < iprh_prev->end) || (iprh->end > iprh_tmp->start)) { - /* fragment overlaps with previous or following, throw away */ - return IP_REASS_VALIDATE_PBUF_DROPPED; - } -#endif /* IP_REASS_CHECK_OVERLAP */ - iprh_prev->next_pbuf = new_p; - if (iprh_prev->end != iprh->start) { - /* There is a fragment missing between the current - * and the previous fragment */ - valid = 0; - } - } else { -#if IP_REASS_CHECK_OVERLAP - if (iprh->end > iprh_tmp->start) { - /* fragment overlaps with following, throw away */ - return IP_REASS_VALIDATE_PBUF_DROPPED; - } -#endif /* IP_REASS_CHECK_OVERLAP */ - /* fragment with the lowest offset */ - ipr->p = new_p; - } - break; - } else if (iprh->start == iprh_tmp->start) { - /* received the same datagram twice: no need to keep the datagram */ - return IP_REASS_VALIDATE_PBUF_DROPPED; -#if IP_REASS_CHECK_OVERLAP - } else if (iprh->start < iprh_tmp->end) { - /* overlap: no need to keep the new datagram */ - return IP_REASS_VALIDATE_PBUF_DROPPED; -#endif /* IP_REASS_CHECK_OVERLAP */ - } else { - /* Check if the fragments received so far have no holes. */ - if (iprh_prev != NULL) { - if (iprh_prev->end != iprh_tmp->start) { - /* There is a fragment missing between the current - * and the previous fragment */ - valid = 0; - } - } - } - q = iprh_tmp->next_pbuf; - iprh_prev = iprh_tmp; - } - - /* If q is NULL, then we made it to the end of the list. Determine what to do now */ - if (q == NULL) { - if (iprh_prev != NULL) { - /* this is (for now), the fragment with the highest offset: - * chain it to the last fragment */ -#if IP_REASS_CHECK_OVERLAP - LWIP_ASSERT("check fragments don't overlap", iprh_prev->end <= iprh->start); -#endif /* IP_REASS_CHECK_OVERLAP */ - iprh_prev->next_pbuf = new_p; - if (iprh_prev->end != iprh->start) { - valid = 0; - } - } else { -#if IP_REASS_CHECK_OVERLAP - LWIP_ASSERT("no previous fragment, this must be the first fragment!", - ipr->p == NULL); -#endif /* IP_REASS_CHECK_OVERLAP */ - /* this is the first fragment we ever received for this ip datagram */ - ipr->p = new_p; - } - } - - /* At this point, the validation part begins: */ - /* If we already received the last fragment */ - if (is_last || ((ipr->flags & IP_REASS_FLAG_LASTFRAG) != 0)) { - /* and had no holes so far */ - if (valid) { - /* then check if the rest of the fragments is here */ - /* Check if the queue starts with the first datagram */ - if ((ipr->p == NULL) || (((struct ip_reass_helper *)ipr->p->payload)->start != 0)) { - valid = 0; - } else { - /* and check that there are no holes after this datagram */ - iprh_prev = iprh; - q = iprh->next_pbuf; - while (q != NULL) { - iprh = (struct ip_reass_helper *)q->payload; - if (iprh_prev->end != iprh->start) { - valid = 0; - break; - } - iprh_prev = iprh; - q = iprh->next_pbuf; - } - /* if still valid, all fragments are received - * (because to the MF==0 already arrived */ - if (valid) { - LWIP_ASSERT("sanity check", ipr->p != NULL); - LWIP_ASSERT("sanity check", - ((struct ip_reass_helper *)ipr->p->payload) != iprh); - LWIP_ASSERT("validate_datagram:next_pbuf!=NULL", - iprh->next_pbuf == NULL); - } - } - } - /* If valid is 0 here, there are some fragments missing in the middle - * (since MF == 0 has already arrived). Such datagrams simply time out if - * no more fragments are received... */ - return valid ? IP_REASS_VALIDATE_TELEGRAM_FINISHED : IP_REASS_VALIDATE_PBUF_QUEUED; - } - /* If we come here, not all fragments were received, yet! */ - return IP_REASS_VALIDATE_PBUF_QUEUED; /* not yet valid! */ -} - -/** - * Reassembles incoming IP fragments into an IP datagram. - * - * @param p points to a pbuf chain of the fragment - * @return NULL if reassembly is incomplete, ? otherwise - */ -struct pbuf * -ip4_reass(struct pbuf *p) -{ - struct pbuf *r; - struct ip_hdr *fraghdr; - struct ip_reassdata *ipr; - struct ip_reass_helper *iprh; - u16_t offset, len, clen; - u8_t hlen; - int valid; - int is_last; - - IPFRAG_STATS_INC(ip_frag.recv); - MIB2_STATS_INC(mib2.ipreasmreqds); - - fraghdr = (struct ip_hdr *)p->payload; - - if (IPH_HL_BYTES(fraghdr) != IP_HLEN) { - LWIP_DEBUGF(IP_REASS_DEBUG, ("ip4_reass: IP options currently not supported!\n")); - IPFRAG_STATS_INC(ip_frag.err); - goto nullreturn; - } - - offset = IPH_OFFSET_BYTES(fraghdr); - len = lwip_ntohs(IPH_LEN(fraghdr)); - hlen = IPH_HL_BYTES(fraghdr); - if (hlen > len) { - /* invalid datagram */ - goto nullreturn; - } - len = (u16_t)(len - hlen); - - /* Check if we are allowed to enqueue more datagrams. */ - clen = pbuf_clen(p); - if ((ip_reass_pbufcount + clen) > IP_REASS_MAX_PBUFS) { -#if IP_REASS_FREE_OLDEST - if (!ip_reass_remove_oldest_datagram(fraghdr, clen) || - ((ip_reass_pbufcount + clen) > IP_REASS_MAX_PBUFS)) -#endif /* IP_REASS_FREE_OLDEST */ - { - /* No datagram could be freed and still too many pbufs enqueued */ - LWIP_DEBUGF(IP_REASS_DEBUG, ("ip4_reass: Overflow condition: pbufct=%d, clen=%d, MAX=%d\n", - ip_reass_pbufcount, clen, IP_REASS_MAX_PBUFS)); - IPFRAG_STATS_INC(ip_frag.memerr); - /* @todo: send ICMP time exceeded here? */ - /* drop this pbuf */ - goto nullreturn; - } - } - - /* Look for the datagram the fragment belongs to in the current datagram queue, - * remembering the previous in the queue for later dequeueing. */ - for (ipr = reassdatagrams; ipr != NULL; ipr = ipr->next) { - /* Check if the incoming fragment matches the one currently present - in the reassembly buffer. If so, we proceed with copying the - fragment into the buffer. */ - if (IP_ADDRESSES_AND_ID_MATCH(&ipr->iphdr, fraghdr)) { - LWIP_DEBUGF(IP_REASS_DEBUG, ("ip4_reass: matching previous fragment ID=%"X16_F"\n", - lwip_ntohs(IPH_ID(fraghdr)))); - IPFRAG_STATS_INC(ip_frag.cachehit); - break; - } - } - - if (ipr == NULL) { - /* Enqueue a new datagram into the datagram queue */ - ipr = ip_reass_enqueue_new_datagram(fraghdr, clen); - /* Bail if unable to enqueue */ - if (ipr == NULL) { - goto nullreturn; - } - } else { - if (((lwip_ntohs(IPH_OFFSET(fraghdr)) & IP_OFFMASK) == 0) && - ((lwip_ntohs(IPH_OFFSET(&ipr->iphdr)) & IP_OFFMASK) != 0)) { - /* ipr->iphdr is not the header from the first fragment, but fraghdr is - * -> copy fraghdr into ipr->iphdr since we want to have the header - * of the first fragment (for ICMP time exceeded and later, for copying - * all options, if supported)*/ - SMEMCPY(&ipr->iphdr, fraghdr, IP_HLEN); - } - } - - /* At this point, we have either created a new entry or pointing - * to an existing one */ - - /* check for 'no more fragments', and update queue entry*/ - is_last = (IPH_OFFSET(fraghdr) & PP_NTOHS(IP_MF)) == 0; - if (is_last) { - u16_t datagram_len = (u16_t)(offset + len); - if ((datagram_len < offset) || (datagram_len > (0xFFFF - IP_HLEN))) { - /* u16_t overflow, cannot handle this */ - goto nullreturn_ipr; - } - } - /* find the right place to insert this pbuf */ - /* @todo: trim pbufs if fragments are overlapping */ - valid = ip_reass_chain_frag_into_datagram_and_validate(ipr, p, is_last); - if (valid == IP_REASS_VALIDATE_PBUF_DROPPED) { - goto nullreturn_ipr; - } - /* if we come here, the pbuf has been enqueued */ - - /* Track the current number of pbufs current 'in-flight', in order to limit - the number of fragments that may be enqueued at any one time - (overflow checked by testing against IP_REASS_MAX_PBUFS) */ - ip_reass_pbufcount = (u16_t)(ip_reass_pbufcount + clen); - if (is_last) { - u16_t datagram_len = (u16_t)(offset + len); - ipr->datagram_len = datagram_len; - ipr->flags |= IP_REASS_FLAG_LASTFRAG; - LWIP_DEBUGF(IP_REASS_DEBUG, - ("ip4_reass: last fragment seen, total len %"S16_F"\n", - ipr->datagram_len)); - } - - if (valid == IP_REASS_VALIDATE_TELEGRAM_FINISHED) { - struct ip_reassdata *ipr_prev; - /* the totally last fragment (flag more fragments = 0) was received at least - * once AND all fragments are received */ - u16_t datagram_len = (u16_t)(ipr->datagram_len + IP_HLEN); - - /* save the second pbuf before copying the header over the pointer */ - r = ((struct ip_reass_helper *)ipr->p->payload)->next_pbuf; - - /* copy the original ip header back to the first pbuf */ - fraghdr = (struct ip_hdr *)(ipr->p->payload); - SMEMCPY(fraghdr, &ipr->iphdr, IP_HLEN); - IPH_LEN_SET(fraghdr, lwip_htons(datagram_len)); - IPH_OFFSET_SET(fraghdr, 0); - IPH_CHKSUM_SET(fraghdr, 0); - /* @todo: do we need to set/calculate the correct checksum? */ -#if CHECKSUM_GEN_IP - IF__NETIF_CHECKSUM_ENABLED(ip_current_input_netif(), NETIF_CHECKSUM_GEN_IP) { - IPH_CHKSUM_SET(fraghdr, inet_chksum(fraghdr, IP_HLEN)); - } -#endif /* CHECKSUM_GEN_IP */ - - p = ipr->p; - - /* chain together the pbufs contained within the reass_data list. */ - while (r != NULL) { - iprh = (struct ip_reass_helper *)r->payload; - - /* hide the ip header for every succeeding fragment */ - pbuf_remove_header(r, IP_HLEN); - pbuf_cat(p, r); - r = iprh->next_pbuf; - } - - /* find the previous entry in the linked list */ - if (ipr == reassdatagrams) { - ipr_prev = NULL; - } else { - for (ipr_prev = reassdatagrams; ipr_prev != NULL; ipr_prev = ipr_prev->next) { - if (ipr_prev->next == ipr) { - break; - } - } - } - - /* release the sources allocate for the fragment queue entry */ - ip_reass_dequeue_datagram(ipr, ipr_prev); - - /* and adjust the number of pbufs currently queued for reassembly. */ - clen = pbuf_clen(p); - LWIP_ASSERT("ip_reass_pbufcount >= clen", ip_reass_pbufcount >= clen); - ip_reass_pbufcount = (u16_t)(ip_reass_pbufcount - clen); - - MIB2_STATS_INC(mib2.ipreasmoks); - - /* Return the pbuf chain */ - return p; - } - /* the datagram is not (yet?) reassembled completely */ - LWIP_DEBUGF(IP_REASS_DEBUG, ("ip_reass_pbufcount: %d out\n", ip_reass_pbufcount)); - return NULL; - -nullreturn_ipr: - LWIP_ASSERT("ipr != NULL", ipr != NULL); - if (ipr->p == NULL) { - /* dropped pbuf after creating a new datagram entry: remove the entry, too */ - LWIP_ASSERT("not firstalthough just enqueued", ipr == reassdatagrams); - ip_reass_dequeue_datagram(ipr, NULL); - } - -nullreturn: - LWIP_DEBUGF(IP_REASS_DEBUG, ("ip4_reass: nullreturn\n")); - IPFRAG_STATS_INC(ip_frag.drop); - pbuf_free(p); - return NULL; -} -#endif /* IP_REASSEMBLY */ - -#if IP_FRAG -#if !LWIP_NETIF_TX_SINGLE_PBUF -/** Allocate a new struct pbuf_custom_ref */ -static struct pbuf_custom_ref * -ip_frag_alloc_pbuf_custom_ref(void) -{ - return (struct pbuf_custom_ref *)memp_malloc(MEMP_FRAG_PBUF); -} - -/** Free a struct pbuf_custom_ref */ -static void -ip_frag_free_pbuf_custom_ref(struct pbuf_custom_ref *p) -{ - LWIP_ASSERT("p != NULL", p != NULL); - memp_free(MEMP_FRAG_PBUF, p); -} - -/** Free-callback function to free a 'struct pbuf_custom_ref', called by - * pbuf_free. */ -static void -ipfrag_free_pbuf_custom(struct pbuf *p) -{ - struct pbuf_custom_ref *pcr = (struct pbuf_custom_ref *)p; - LWIP_ASSERT("pcr != NULL", pcr != NULL); - LWIP_ASSERT("pcr == p", (void *)pcr == (void *)p); - if (pcr->original != NULL) { - pbuf_free(pcr->original); - } - ip_frag_free_pbuf_custom_ref(pcr); -} -#endif /* !LWIP_NETIF_TX_SINGLE_PBUF */ - -/** - * Fragment an IP datagram if too large for the netif. - * - * Chop the datagram in MTU sized chunks and send them in order - * by pointing PBUF_REFs into p. - * - * @param p ip packet to send - * @param netif the netif on which to send - * @param dest destination ip address to which to send - * - * @return ERR_OK if sent successfully, err_t otherwise - */ -err_t -ip4_frag(struct pbuf *p, struct netif *netif, const ip4_addr_t *dest) -{ - struct pbuf *rambuf; -#if !LWIP_NETIF_TX_SINGLE_PBUF - struct pbuf *newpbuf; - u16_t newpbuflen = 0; - u16_t left_to_copy; -#endif - struct ip_hdr *original_iphdr; - struct ip_hdr *iphdr; - const u16_t nfb = (u16_t)((netif->mtu - IP_HLEN) / 8); - u16_t left, fragsize; - u16_t ofo; - int last; - u16_t poff = IP_HLEN; - u16_t tmp; - int mf_set; - - original_iphdr = (struct ip_hdr *)p->payload; - iphdr = original_iphdr; - if (IPH_HL_BYTES(iphdr) != IP_HLEN) { - /* ip4_frag() does not support IP options */ - return ERR_VAL; - } - LWIP_ERROR("ip4_frag(): pbuf too short", p->len >= IP_HLEN, return ERR_VAL); - - /* Save original offset */ - tmp = lwip_ntohs(IPH_OFFSET(iphdr)); - ofo = tmp & IP_OFFMASK; - /* already fragmented? if so, the last fragment we create must have MF, too */ - mf_set = tmp & IP_MF; - - left = (u16_t)(p->tot_len - IP_HLEN); - - while (left) { - /* Fill this fragment */ - fragsize = LWIP_MIN(left, (u16_t)(nfb * 8)); - -#if LWIP_NETIF_TX_SINGLE_PBUF - rambuf = pbuf_alloc(PBUF_IP, fragsize, PBUF_RAM); - if (rambuf == NULL) { - goto memerr; - } - LWIP_ASSERT("this needs a pbuf in one piece!", - (rambuf->len == rambuf->tot_len) && (rambuf->next == NULL)); - poff += pbuf_copy_partial(p, rambuf->payload, fragsize, poff); - /* make room for the IP header */ - if (pbuf_add_header(rambuf, IP_HLEN)) { - pbuf_free(rambuf); - goto memerr; - } - /* fill in the IP header */ - SMEMCPY(rambuf->payload, original_iphdr, IP_HLEN); - iphdr = (struct ip_hdr *)rambuf->payload; -#else /* LWIP_NETIF_TX_SINGLE_PBUF */ - /* When not using a static buffer, create a chain of pbufs. - * The first will be a PBUF_RAM holding the link and IP header. - * The rest will be PBUF_REFs mirroring the pbuf chain to be fragged, - * but limited to the size of an mtu. - */ - rambuf = pbuf_alloc(PBUF_LINK, IP_HLEN, PBUF_RAM); - if (rambuf == NULL) { - goto memerr; - } - LWIP_ASSERT("this needs a pbuf in one piece!", - (rambuf->len >= (IP_HLEN))); - SMEMCPY(rambuf->payload, original_iphdr, IP_HLEN); - iphdr = (struct ip_hdr *)rambuf->payload; - - left_to_copy = fragsize; - while (left_to_copy) { - struct pbuf_custom_ref *pcr; - u16_t plen = (u16_t)(p->len - poff); - LWIP_ASSERT("p->len >= poff", p->len >= poff); - newpbuflen = LWIP_MIN(left_to_copy, plen); - /* Is this pbuf already empty? */ - if (!newpbuflen) { - poff = 0; - p = p->next; - continue; - } - pcr = ip_frag_alloc_pbuf_custom_ref(); - if (pcr == NULL) { - pbuf_free(rambuf); - goto memerr; - } - /* Mirror this pbuf, although we might not need all of it. */ - newpbuf = pbuf_alloced_custom(PBUF_RAW, newpbuflen, PBUF_REF, &pcr->pc, - (u8_t *)p->payload + poff, newpbuflen); - if (newpbuf == NULL) { - ip_frag_free_pbuf_custom_ref(pcr); - pbuf_free(rambuf); - goto memerr; - } - pbuf_ref(p); - pcr->original = p; - pcr->pc.custom_free_function = ipfrag_free_pbuf_custom; - - /* Add it to end of rambuf's chain, but using pbuf_cat, not pbuf_chain - * so that it is removed when pbuf_dechain is later called on rambuf. - */ - pbuf_cat(rambuf, newpbuf); - left_to_copy = (u16_t)(left_to_copy - newpbuflen); - if (left_to_copy) { - poff = 0; - p = p->next; - } - } - poff = (u16_t)(poff + newpbuflen); -#endif /* LWIP_NETIF_TX_SINGLE_PBUF */ - - /* Correct header */ - last = (left <= netif->mtu - IP_HLEN); - - /* Set new offset and MF flag */ - tmp = (IP_OFFMASK & (ofo)); - if (!last || mf_set) { - /* the last fragment has MF set if the input frame had it */ - tmp = tmp | IP_MF; - } - IPH_OFFSET_SET(iphdr, lwip_htons(tmp)); - IPH_LEN_SET(iphdr, lwip_htons((u16_t)(fragsize + IP_HLEN))); - IPH_CHKSUM_SET(iphdr, 0); -#if CHECKSUM_GEN_IP - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_IP) { - IPH_CHKSUM_SET(iphdr, inet_chksum(iphdr, IP_HLEN)); - } -#endif /* CHECKSUM_GEN_IP */ - - /* No need for separate header pbuf - we allowed room for it in rambuf - * when allocated. - */ - netif->output(netif, rambuf, dest); - IPFRAG_STATS_INC(ip_frag.xmit); - - /* Unfortunately we can't reuse rambuf - the hardware may still be - * using the buffer. Instead we free it (and the ensuing chain) and - * recreate it next time round the loop. If we're lucky the hardware - * will have already sent the packet, the free will really free, and - * there will be zero memory penalty. - */ - - pbuf_free(rambuf); - left = (u16_t)(left - fragsize); - ofo = (u16_t)(ofo + nfb); - } - MIB2_STATS_INC(mib2.ipfragoks); - return ERR_OK; -memerr: - MIB2_STATS_INC(mib2.ipfragfails); - return ERR_MEM; -} -#endif /* IP_FRAG */ - -#endif /* LWIP_IPV4 */ diff --git a/core/c/core/ipv6/dhcp6.c b/core/c/core/ipv6/dhcp6.c deleted file mode 100755 index 1ae8742..0000000 --- a/core/c/core/ipv6/dhcp6.c +++ /dev/null @@ -1,812 +0,0 @@ -/** - * @file - * - * @defgroup dhcp6 DHCPv6 - * @ingroup ip6 - * DHCPv6 client: IPv6 address autoconfiguration as per - * RFC 3315 (stateful DHCPv6) and - * RFC 3736 (stateless DHCPv6). - * - * For now, only stateless DHCPv6 is implemented! - * - * TODO: - * - enable/disable API to not always start when RA is received - * - stateful DHCPv6 (for now, only stateless DHCPv6 for DNS and NTP servers works) - * - create Client Identifier? - * - only start requests if a valid local address is available on the netif - * - only start information requests if required (not for every RA) - * - * dhcp6_enable_stateful() enables stateful DHCPv6 for a netif (stateless disabled)\n - * dhcp6_enable_stateless() enables stateless DHCPv6 for a netif (stateful disabled)\n - * dhcp6_disable() disable DHCPv6 for a netif - * - * When enabled, requests are only issued after receipt of RA with the - * corresponding bits set. - */ - -/* - * Copyright (c) 2018 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - */ - -#include "lwip/opt.h" - -#if LWIP_IPV6 && LWIP_IPV6_DHCP6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/dhcp6.h" -#include "lwip/prot/dhcp6.h" -#include "lwip/def.h" -#include "lwip/udp.h" -#include "lwip/dns.h" - -#include - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif -#ifndef LWIP_HOOK_DHCP6_APPEND_OPTIONS -#define LWIP_HOOK_DHCP6_APPEND_OPTIONS(netif, dhcp6, state, msg, msg_type, options_len_ptr, max_len) -#endif -#ifndef LWIP_HOOK_DHCP6_PARSE_OPTION -#define LWIP_HOOK_DHCP6_PARSE_OPTION(netif, dhcp6, state, msg, msg_type, option, len, pbuf, offset) do { LWIP_UNUSED_ARG(msg); } while(0) -#endif - -#if LWIP_DNS && LWIP_DHCP6_MAX_DNS_SERVERS -#if DNS_MAX_SERVERS > LWIP_DHCP6_MAX_DNS_SERVERS -#define LWIP_DHCP6_PROVIDE_DNS_SERVERS LWIP_DHCP6_MAX_DNS_SERVERS -#else -#define LWIP_DHCP6_PROVIDE_DNS_SERVERS DNS_MAX_SERVERS -#endif -#else -#define LWIP_DHCP6_PROVIDE_DNS_SERVERS 0 -#endif - - -/** Option handling: options are parsed in dhcp6_parse_reply - * and saved in an array where other functions can load them from. - * This might be moved into the struct dhcp6 (not necessarily since - * lwIP is single-threaded and the array is only used while in recv - * callback). */ -enum dhcp6_option_idx { - DHCP6_OPTION_IDX_CLI_ID = 0, - DHCP6_OPTION_IDX_SERVER_ID, -#if LWIP_DHCP6_PROVIDE_DNS_SERVERS - DHCP6_OPTION_IDX_DNS_SERVER, - DHCP6_OPTION_IDX_DOMAIN_LIST, -#endif /* LWIP_DHCP_PROVIDE_DNS_SERVERS */ -#if LWIP_DHCP6_GET_NTP_SRV - DHCP6_OPTION_IDX_NTP_SERVER, -#endif /* LWIP_DHCP_GET_NTP_SRV */ - DHCP6_OPTION_IDX_MAX -}; - -struct dhcp6_option_info { - u8_t option_given; - u16_t val_start; - u16_t val_length; -}; - -/** Holds the decoded option info, only valid while in dhcp6_recv. */ -struct dhcp6_option_info dhcp6_rx_options[DHCP6_OPTION_IDX_MAX]; - -#define dhcp6_option_given(dhcp6, idx) (dhcp6_rx_options[idx].option_given != 0) -#define dhcp6_got_option(dhcp6, idx) (dhcp6_rx_options[idx].option_given = 1) -#define dhcp6_clear_option(dhcp6, idx) (dhcp6_rx_options[idx].option_given = 0) -#define dhcp6_clear_all_options(dhcp6) (memset(dhcp6_rx_options, 0, sizeof(dhcp6_rx_options))) -#define dhcp6_get_option_start(dhcp6, idx) (dhcp6_rx_options[idx].val_start) -#define dhcp6_get_option_length(dhcp6, idx) (dhcp6_rx_options[idx].val_length) -#define dhcp6_set_option(dhcp6, idx, start, len) do { dhcp6_rx_options[idx].val_start = (start); dhcp6_rx_options[idx].val_length = (len); }while(0) - - -const ip_addr_t dhcp6_All_DHCP6_Relay_Agents_and_Servers = IPADDR6_INIT_HOST(0xFF020000, 0, 0, 0x00010002); -const ip_addr_t dhcp6_All_DHCP6_Servers = IPADDR6_INIT_HOST(0xFF020000, 0, 0, 0x00010003); - -static struct udp_pcb *dhcp6_pcb; -static u8_t dhcp6_pcb_refcount; - - -/* receive, unfold, parse and free incoming messages */ -static void dhcp6_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port); - -/** Ensure DHCP PCB is allocated and bound */ -static err_t -dhcp6_inc_pcb_refcount(void) -{ - if (dhcp6_pcb_refcount == 0) { - LWIP_ASSERT("dhcp6_inc_pcb_refcount(): memory leak", dhcp6_pcb == NULL); - - /* allocate UDP PCB */ - dhcp6_pcb = udp_new_ip6(); - - if (dhcp6_pcb == NULL) { - return ERR_MEM; - } - - ip_set_option(dhcp6_pcb, SOF_BROADCAST); - - /* set up local and remote port for the pcb -> listen on all interfaces on all src/dest IPs */ - udp_bind(dhcp6_pcb, IP6_ADDR_ANY, DHCP6_CLIENT_PORT); - udp_recv(dhcp6_pcb, dhcp6_recv, NULL); - } - - dhcp6_pcb_refcount++; - - return ERR_OK; -} - -/** Free DHCP PCB if the last netif stops using it */ -static void -dhcp6_dec_pcb_refcount(void) -{ - LWIP_ASSERT("dhcp6_pcb_refcount(): refcount error", (dhcp6_pcb_refcount > 0)); - dhcp6_pcb_refcount--; - - if (dhcp6_pcb_refcount == 0) { - udp_remove(dhcp6_pcb); - dhcp6_pcb = NULL; - } -} - -/** - * @ingroup dhcp6 - * Set a statically allocated struct dhcp6 to work with. - * Using this prevents dhcp6_start to allocate it using mem_malloc. - * - * @param netif the netif for which to set the struct dhcp - * @param dhcp6 (uninitialised) dhcp6 struct allocated by the application - */ -void -dhcp6_set_struct(struct netif *netif, struct dhcp6 *dhcp6) -{ - LWIP_ASSERT("netif != NULL", netif != NULL); - LWIP_ASSERT("dhcp6 != NULL", dhcp6 != NULL); - LWIP_ASSERT("netif already has a struct dhcp6 set", netif_dhcp6_data(netif) == NULL); - - /* clear data structure */ - memset(dhcp6, 0, sizeof(struct dhcp6)); - /* dhcp6_set_state(&dhcp, DHCP6_STATE_OFF); */ - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, dhcp6); -} - -/** - * @ingroup dhcp6 - * Removes a struct dhcp6 from a netif. - * - * ATTENTION: Only use this when not using dhcp6_set_struct() to allocate the - * struct dhcp6 since the memory is passed back to the heap. - * - * @param netif the netif from which to remove the struct dhcp - */ -void dhcp6_cleanup(struct netif *netif) -{ - LWIP_ASSERT("netif != NULL", netif != NULL); - - if (netif_dhcp6_data(netif) != NULL) { - mem_free(netif_dhcp6_data(netif)); - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, NULL); - } -} - -static struct dhcp6* -dhcp6_get_struct(struct netif *netif, const char *dbg_requester) -{ - struct dhcp6 *dhcp6 = netif_dhcp6_data(netif); - if (dhcp6 == NULL) { - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("%s: mallocing new DHCPv6 client\n", dbg_requester)); - dhcp6 = (struct dhcp6 *)mem_malloc(sizeof(struct dhcp6)); - if (dhcp6 == NULL) { - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("%s: could not allocate dhcp6\n", dbg_requester)); - return NULL; - } - - /* clear data structure, this implies DHCP6_STATE_OFF */ - memset(dhcp6, 0, sizeof(struct dhcp6)); - /* store this dhcp6 client in the netif */ - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, dhcp6); - } else { - /* already has DHCP6 client attached */ - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("%s: using existing DHCPv6 client\n", dbg_requester)); - } - - if (!dhcp6->pcb_allocated) { - if (dhcp6_inc_pcb_refcount() != ERR_OK) { /* ensure DHCP6 PCB is allocated */ - mem_free(dhcp6); - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, NULL); - return NULL; - } - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("%s: allocated dhcp6", dbg_requester)); - dhcp6->pcb_allocated = 1; - } - return dhcp6; -} - -/* - * Set the DHCPv6 state - * If the state changed, reset the number of tries. - */ -static void -dhcp6_set_state(struct dhcp6 *dhcp6, u8_t new_state, const char *dbg_caller) -{ - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("DHCPv6 state: %d -> %d (%s)\n", - dhcp6->state, new_state, dbg_caller)); - if (new_state != dhcp6->state) { - dhcp6->state = new_state; - dhcp6->tries = 0; - dhcp6->request_timeout = 0; - } -} - -static int -dhcp6_stateless_enabled(struct dhcp6 *dhcp6) -{ - if ((dhcp6->state == DHCP6_STATE_STATELESS_IDLE) || - (dhcp6->state == DHCP6_STATE_REQUESTING_CONFIG)) { - return 1; - } - return 0; -} - -/*static int -dhcp6_stateful_enabled(struct dhcp6 *dhcp6) -{ - if (dhcp6->state == DHCP6_STATE_OFF) { - return 0; - } - if (dhcp6_stateless_enabled(dhcp6)) { - return 0; - } - return 1; -}*/ - -/** - * @ingroup dhcp6 - * Enable stateful DHCPv6 on this netif - * Requests are sent on receipt of an RA message with the - * ND6_RA_FLAG_MANAGED_ADDR_CONFIG flag set. - * - * A struct dhcp6 will be allocated for this netif if not - * set via @ref dhcp6_set_struct before. - * - * @todo: stateful DHCPv6 not supported, yet - */ -err_t -dhcp6_enable_stateful(struct netif *netif) -{ - LWIP_UNUSED_ARG(netif); - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("stateful dhcp6 not implemented yet")); - return ERR_VAL; -} - -/** - * @ingroup dhcp6 - * Enable stateless DHCPv6 on this netif - * Requests are sent on receipt of an RA message with the - * ND6_RA_FLAG_OTHER_CONFIG flag set. - * - * A struct dhcp6 will be allocated for this netif if not - * set via @ref dhcp6_set_struct before. - */ -err_t -dhcp6_enable_stateless(struct netif *netif) -{ - struct dhcp6 *dhcp6; - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp6_enable_stateless(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); - - dhcp6 = dhcp6_get_struct(netif, "dhcp6_enable_stateless()"); - if (dhcp6 == NULL) { - return ERR_MEM; - } - if (dhcp6_stateless_enabled(dhcp6)) { - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp6_enable_stateless(): stateless DHCPv6 already enabled")); - return ERR_OK; - } else if (dhcp6->state != DHCP6_STATE_OFF) { - /* stateful running */ - /* @todo: stop stateful once it is implemented */ - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp6_enable_stateless(): switching from stateful to stateless DHCPv6")); - } - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp6_enable_stateless(): stateless DHCPv6 enabled\n")); - dhcp6_set_state(dhcp6, DHCP6_STATE_STATELESS_IDLE, "dhcp6_enable_stateless"); - return ERR_OK; -} - -/** - * @ingroup dhcp6 - * Disable stateful or stateless DHCPv6 on this netif - * Requests are sent on receipt of an RA message with the - * ND6_RA_FLAG_OTHER_CONFIG flag set. - */ -void -dhcp6_disable(struct netif *netif) -{ - struct dhcp6 *dhcp6; - - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp6_disable(netif=%p) %c%c%"U16_F"\n", (void *)netif, netif->name[0], netif->name[1], (u16_t)netif->num)); - - dhcp6 = netif_dhcp6_data(netif); - if (dhcp6 != NULL) { - if (dhcp6->state != DHCP6_STATE_OFF) { - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("dhcp6_disable(): DHCPv6 disabled (old state: %s)\n", - (dhcp6_stateless_enabled(dhcp6) ? "stateless" : "stateful"))); - dhcp6_set_state(dhcp6, DHCP6_STATE_OFF, "dhcp6_disable"); - if (dhcp6->pcb_allocated != 0) { - dhcp6_dec_pcb_refcount(); /* free DHCPv6 PCB if not needed any more */ - dhcp6->pcb_allocated = 0; - } - } - } -} - -/** - * Create a DHCPv6 request, fill in common headers - * - * @param netif the netif under DHCPv6 control - * @param dhcp6 dhcp6 control struct - * @param message_type message type of the request - * @param opt_len_alloc option length to allocate - * @param options_out_len option length on exit - * @return a pbuf for the message - */ -static struct pbuf * -dhcp6_create_msg(struct netif *netif, struct dhcp6 *dhcp6, u8_t message_type, - u16_t opt_len_alloc, u16_t *options_out_len) -{ - struct pbuf *p_out; - struct dhcp6_msg *msg_out; - - LWIP_ERROR("dhcp6_create_msg: netif != NULL", (netif != NULL), return NULL;); - LWIP_ERROR("dhcp6_create_msg: dhcp6 != NULL", (dhcp6 != NULL), return NULL;); - p_out = pbuf_alloc(PBUF_TRANSPORT, sizeof(struct dhcp6_msg) + opt_len_alloc, PBUF_RAM); - if (p_out == NULL) { - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, - ("dhcp6_create_msg(): could not allocate pbuf\n")); - return NULL; - } - LWIP_ASSERT("dhcp6_create_msg: check that first pbuf can hold struct dhcp6_msg", - (p_out->len >= sizeof(struct dhcp6_msg) + opt_len_alloc)); - - /* @todo: limit new xid for certain message types? */ - /* reuse transaction identifier in retransmissions */ - if (dhcp6->tries == 0) { - dhcp6->xid = LWIP_RAND() & 0xFFFFFF; - } - - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, - ("transaction id xid(%"X32_F")\n", dhcp6->xid)); - - msg_out = (struct dhcp6_msg *)p_out->payload; - memset(msg_out, 0, sizeof(struct dhcp6_msg) + opt_len_alloc); - - msg_out->msgtype = message_type; - msg_out->transaction_id[0] = (u8_t)(dhcp6->xid >> 16); - msg_out->transaction_id[1] = (u8_t)(dhcp6->xid >> 8); - msg_out->transaction_id[2] = (u8_t)dhcp6->xid; - *options_out_len = 0; - return p_out; -} - -static u16_t -dhcp6_option_short(u16_t options_out_len, u8_t *options, u16_t value) -{ - options[options_out_len++] = (u8_t)((value & 0xff00U) >> 8); - options[options_out_len++] = (u8_t) (value & 0x00ffU); - return options_out_len; -} - -static u16_t -dhcp6_option_optionrequest(u16_t options_out_len, u8_t *options, const u16_t *req_options, - u16_t num_req_options, u16_t max_len) -{ - size_t i; - u16_t ret; - - LWIP_ASSERT("dhcp6_option_optionrequest: options_out_len + sizeof(struct dhcp6_msg) + addlen <= max_len", - sizeof(struct dhcp6_msg) + options_out_len + 4U + (2U * num_req_options) <= max_len); - LWIP_UNUSED_ARG(max_len); - - ret = dhcp6_option_short(options_out_len, options, DHCP6_OPTION_ORO); - ret = dhcp6_option_short(ret, options, 2 * num_req_options); - for (i = 0; i < num_req_options; i++) { - ret = dhcp6_option_short(ret, options, req_options[i]); - } - return ret; -} - -/* All options are added, shrink the pbuf to the required size */ -static void -dhcp6_msg_finalize(u16_t options_out_len, struct pbuf *p_out) -{ - /* shrink the pbuf to the actual content length */ - pbuf_realloc(p_out, (u16_t)(sizeof(struct dhcp6_msg) + options_out_len)); -} - - -#if LWIP_IPV6_DHCP6_STATELESS -static void -dhcp6_information_request(struct netif *netif, struct dhcp6 *dhcp6) -{ - const u16_t requested_options[] = {DHCP6_OPTION_DNS_SERVERS, DHCP6_OPTION_DOMAIN_LIST, DHCP6_OPTION_SNTP_SERVERS}; - u16_t msecs; - struct pbuf *p_out; - u16_t options_out_len; - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("dhcp6_information_request()\n")); - /* create and initialize the DHCP message header */ - p_out = dhcp6_create_msg(netif, dhcp6, DHCP6_INFOREQUEST, 4 + sizeof(requested_options), &options_out_len); - if (p_out != NULL) { - err_t err; - struct dhcp6_msg *msg_out = (struct dhcp6_msg *)p_out->payload; - u8_t *options = (u8_t *)(msg_out + 1); - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("dhcp6_information_request: making request\n")); - - options_out_len = dhcp6_option_optionrequest(options_out_len, options, requested_options, - LWIP_ARRAYSIZE(requested_options), p_out->len); - LWIP_HOOK_DHCP6_APPEND_OPTIONS(netif, dhcp6, DHCP6_STATE_REQUESTING_CONFIG, msg_out, - DHCP6_INFOREQUEST, options_out_len, p_out->len); - dhcp6_msg_finalize(options_out_len, p_out); - - err = udp_sendto_if(dhcp6_pcb, p_out, &dhcp6_All_DHCP6_Relay_Agents_and_Servers, DHCP6_SERVER_PORT, netif); - pbuf_free(p_out); - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp6_information_request: INFOREQUESTING -> %d\n", (int)err)); - LWIP_UNUSED_ARG(err); - } else { - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("dhcp6_information_request: could not allocate DHCP6 request\n")); - } - dhcp6_set_state(dhcp6, DHCP6_STATE_REQUESTING_CONFIG, "dhcp6_information_request"); - if (dhcp6->tries < 255) { - dhcp6->tries++; - } - msecs = (u16_t)((dhcp6->tries < 6 ? 1 << dhcp6->tries : 60) * 1000); - dhcp6->request_timeout = (u16_t)((msecs + DHCP6_TIMER_MSECS - 1) / DHCP6_TIMER_MSECS); - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp6_information_request(): set request timeout %"U16_F" msecs\n", msecs)); -} - -static err_t -dhcp6_request_config(struct netif *netif, struct dhcp6 *dhcp6) -{ - /* stateless mode enabled and no request running? */ - if (dhcp6->state == DHCP6_STATE_STATELESS_IDLE) { - /* send Information-request and wait for answer; setup receive timeout */ - dhcp6_information_request(netif, dhcp6); - } - - return ERR_OK; -} - -static void -dhcp6_abort_config_request(struct dhcp6 *dhcp6) -{ - if (dhcp6->state == DHCP6_STATE_REQUESTING_CONFIG) { - /* abort running request */ - dhcp6_set_state(dhcp6, DHCP6_STATE_STATELESS_IDLE, "dhcp6_abort_config_request"); - } -} - -/* Handle a REPLY to INFOREQUEST - * This parses DNS and NTP server addresses from the reply. - */ -static void -dhcp6_handle_config_reply(struct netif *netif, struct pbuf *p_msg_in) -{ - struct dhcp6 *dhcp6 = netif_dhcp6_data(netif); - - LWIP_UNUSED_ARG(dhcp6); - LWIP_UNUSED_ARG(p_msg_in); - -#if LWIP_DHCP6_PROVIDE_DNS_SERVERS - if (dhcp6_option_given(dhcp6, DHCP6_OPTION_IDX_DNS_SERVER)) { - ip_addr_t dns_addr; - ip6_addr_t *dns_addr6; - u16_t op_start = dhcp6_get_option_start(dhcp6, DHCP6_OPTION_IDX_DNS_SERVER); - u16_t op_len = dhcp6_get_option_length(dhcp6, DHCP6_OPTION_IDX_DNS_SERVER); - u16_t idx; - u8_t n; - - memset(&dns_addr, 0, sizeof(dns_addr)); - dns_addr6 = ip_2_ip6(&dns_addr); - for (n = 0, idx = op_start; (idx < op_start + op_len) && (n < LWIP_DHCP6_PROVIDE_DNS_SERVERS); - n++, idx += sizeof(struct ip6_addr_packed)) { - u16_t copied = pbuf_copy_partial(p_msg_in, dns_addr6, sizeof(struct ip6_addr_packed), idx); - if (copied != sizeof(struct ip6_addr_packed)) { - /* pbuf length mismatch */ - return; - } - ip6_addr_assign_zone(dns_addr6, IP6_UNKNOWN, netif); - /* @todo: do we need a different offset than DHCP(v4)? */ - dns_setserver(n, &dns_addr); - } - } - /* @ todo: parse and set Domain Search List */ -#endif /* LWIP_DHCP6_PROVIDE_DNS_SERVERS */ - -#if LWIP_DHCP6_GET_NTP_SRV - if (dhcp6_option_given(dhcp6, DHCP6_OPTION_IDX_NTP_SERVER)) { - ip_addr_t ntp_server_addrs[LWIP_DHCP6_MAX_NTP_SERVERS]; - u16_t op_start = dhcp6_get_option_start(dhcp6, DHCP6_OPTION_IDX_NTP_SERVER); - u16_t op_len = dhcp6_get_option_length(dhcp6, DHCP6_OPTION_IDX_NTP_SERVER); - u16_t idx; - u8_t n; - - for (n = 0, idx = op_start; (idx < op_start + op_len) && (n < LWIP_DHCP6_MAX_NTP_SERVERS); - n++, idx += sizeof(struct ip6_addr_packed)) { - u16_t copied; - ip6_addr_t *ntp_addr6 = ip_2_ip6(&ntp_server_addrs[n]); - ip_addr_set_zero_ip6(&ntp_server_addrs[n]); - copied = pbuf_copy_partial(p_msg_in, ntp_addr6, sizeof(struct ip6_addr_packed), idx); - if (copied != sizeof(struct ip6_addr_packed)) { - /* pbuf length mismatch */ - return; - } - ip6_addr_assign_zone(ntp_addr6, IP6_UNKNOWN, netif); - } - dhcp6_set_ntp_servers(n, ntp_server_addrs); - } -#endif /* LWIP_DHCP6_GET_NTP_SRV */ -} -#endif /* LWIP_IPV6_DHCP6_STATELESS */ - -/** This function is called from nd6 module when an RA messsage is received - * It triggers DHCPv6 requests (if enabled). - */ -void -dhcp6_nd6_ra_trigger(struct netif *netif, u8_t managed_addr_config, u8_t other_config) -{ - struct dhcp6 *dhcp6; - - LWIP_ASSERT("netif != NULL", netif != NULL); - dhcp6 = netif_dhcp6_data(netif); - - LWIP_UNUSED_ARG(managed_addr_config); - LWIP_UNUSED_ARG(other_config); - LWIP_UNUSED_ARG(dhcp6); - -#if LWIP_IPV6_DHCP6_STATELESS - if (dhcp6 != NULL) { - if (dhcp6_stateless_enabled(dhcp6)) { - if (other_config) { - dhcp6_request_config(netif, dhcp6); - } else { - dhcp6_abort_config_request(dhcp6); - } - } - } -#endif /* LWIP_IPV6_DHCP6_STATELESS */ -} - -/** - * Parse the DHCPv6 message and extract the DHCPv6 options. - * - * Extract the DHCPv6 options (offset + length) so that we can later easily - * check for them or extract the contents. - */ -static err_t -dhcp6_parse_reply(struct pbuf *p, struct dhcp6 *dhcp6) -{ - u16_t offset; - u16_t offset_max; - u16_t options_idx; - struct dhcp6_msg *msg_in; - - LWIP_UNUSED_ARG(dhcp6); - - /* clear received options */ - dhcp6_clear_all_options(dhcp6); - msg_in = (struct dhcp6_msg *)p->payload; - - /* parse options */ - - options_idx = sizeof(struct dhcp6_msg); - /* parse options to the end of the received packet */ - offset_max = p->tot_len; - - offset = options_idx; - /* at least 4 byte to read? */ - while ((offset + 4 <= offset_max)) { - u8_t op_len_buf[4]; - u8_t *op_len; - u16_t op; - u16_t len; - u16_t val_offset = (u16_t)(offset + 4); - if (val_offset < offset) { - /* overflow */ - return ERR_BUF; - } - /* copy option + length, might be split accross pbufs */ - op_len = (u8_t *)pbuf_get_contiguous(p, op_len_buf, 4, 4, offset); - if (op_len == NULL) { - /* failed to get option and length */ - return ERR_VAL; - } - op = (op_len[0] << 8) | op_len[1]; - len = (op_len[2] << 8) | op_len[3]; - offset = val_offset + len; - if (offset < val_offset) { - /* overflow */ - return ERR_BUF; - } - - switch (op) { - case (DHCP6_OPTION_CLIENTID): - dhcp6_got_option(dhcp6, DHCP6_OPTION_IDX_CLI_ID); - dhcp6_set_option(dhcp6, DHCP6_OPTION_IDX_CLI_ID, val_offset, len); - break; - case (DHCP6_OPTION_SERVERID): - dhcp6_got_option(dhcp6, DHCP6_OPTION_IDX_SERVER_ID); - dhcp6_set_option(dhcp6, DHCP6_OPTION_IDX_SERVER_ID, val_offset, len); - break; -#if LWIP_DHCP6_PROVIDE_DNS_SERVERS - case (DHCP6_OPTION_DNS_SERVERS): - dhcp6_got_option(dhcp6, DHCP6_OPTION_IDX_DNS_SERVER); - dhcp6_set_option(dhcp6, DHCP6_OPTION_IDX_DNS_SERVER, val_offset, len); - break; - case (DHCP6_OPTION_DOMAIN_LIST): - dhcp6_got_option(dhcp6, DHCP6_OPTION_IDX_DOMAIN_LIST); - dhcp6_set_option(dhcp6, DHCP6_OPTION_IDX_DOMAIN_LIST, val_offset, len); - break; -#endif /* LWIP_DHCP6_PROVIDE_DNS_SERVERS */ -#if LWIP_DHCP6_GET_NTP_SRV - case (DHCP6_OPTION_SNTP_SERVERS): - dhcp6_got_option(dhcp6, DHCP6_OPTION_IDX_NTP_SERVER); - dhcp6_set_option(dhcp6, DHCP6_OPTION_IDX_NTP_SERVER, val_offset, len); - break; -#endif /* LWIP_DHCP6_GET_NTP_SRV*/ - default: - LWIP_DEBUGF(DHCP6_DEBUG, ("skipping option %"U16_F" in options\n", op)); - LWIP_HOOK_DHCP6_PARSE_OPTION(ip_current_netif(), dhcp6, dhcp6->state, msg_in, - msg_in->msgtype, op, len, q, val_offset); - break; - } - } - return ERR_OK; -} - -static void -dhcp6_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port) -{ - struct netif *netif = ip_current_input_netif(); - struct dhcp6 *dhcp6 = netif_dhcp6_data(netif); - struct dhcp6_msg *reply_msg = (struct dhcp6_msg *)p->payload; - u8_t msg_type; - u32_t xid; - - LWIP_UNUSED_ARG(arg); - - /* Caught DHCPv6 message from netif that does not have DHCPv6 enabled? -> not interested */ - if ((dhcp6 == NULL) || (dhcp6->pcb_allocated == 0)) { - goto free_pbuf_and_return; - } - - LWIP_ERROR("invalid server address type", IP_IS_V6(addr), goto free_pbuf_and_return;); - - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("dhcp6_recv(pbuf = %p) from DHCPv6 server %s port %"U16_F"\n", (void *)p, - ipaddr_ntoa(addr), port)); - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("pbuf->len = %"U16_F"\n", p->len)); - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("pbuf->tot_len = %"U16_F"\n", p->tot_len)); - /* prevent warnings about unused arguments */ - LWIP_UNUSED_ARG(pcb); - LWIP_UNUSED_ARG(addr); - LWIP_UNUSED_ARG(port); - - if (p->len < sizeof(struct dhcp6_msg)) { - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, ("DHCPv6 reply message or pbuf too short\n")); - goto free_pbuf_and_return; - } - - /* match transaction ID against what we expected */ - xid = reply_msg->transaction_id[0] << 16; - xid |= reply_msg->transaction_id[1] << 8; - xid |= reply_msg->transaction_id[2]; - if (xid != dhcp6->xid) { - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_WARNING, - ("transaction id mismatch reply_msg->xid(%"X32_F")!= dhcp6->xid(%"X32_F")\n", xid, dhcp6->xid)); - goto free_pbuf_and_return; - } - /* option fields could be unfold? */ - if (dhcp6_parse_reply(p, dhcp6) != ERR_OK) { - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, - ("problem unfolding DHCPv6 message - too short on memory?\n")); - goto free_pbuf_and_return; - } - - /* read DHCP message type */ - msg_type = reply_msg->msgtype; - /* message type is DHCP6 REPLY? */ - if (msg_type == DHCP6_REPLY) { - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("DHCP6_REPLY received\n")); -#if LWIP_IPV6_DHCP6_STATELESS - /* in info-requesting state? */ - if (dhcp6->state == DHCP6_STATE_REQUESTING_CONFIG) { - dhcp6_set_state(dhcp6, DHCP6_STATE_STATELESS_IDLE, "dhcp6_recv"); - dhcp6_handle_config_reply(netif, p); - } else -#endif /* LWIP_IPV6_DHCP6_STATELESS */ - { - /* @todo: handle reply in other states? */ - } - } else { - /* @todo: handle other message types */ - } - -free_pbuf_and_return: - pbuf_free(p); -} - -/** - * A DHCPv6 request has timed out. - * - * The timer that was started with the DHCPv6 request has - * timed out, indicating no response was received in time. - */ -static void -dhcp6_timeout(struct netif *netif, struct dhcp6 *dhcp6) -{ - LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp6_timeout()\n")); - - LWIP_UNUSED_ARG(netif); - LWIP_UNUSED_ARG(dhcp6); - -#if LWIP_IPV6_DHCP6_STATELESS - /* back-off period has passed, or server selection timed out */ - if (dhcp6->state == DHCP6_STATE_REQUESTING_CONFIG) { - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE, ("dhcp6_timeout(): retrying information request\n")); - dhcp6_information_request(netif, dhcp6); - } -#endif /* LWIP_IPV6_DHCP6_STATELESS */ -} - -/** - * DHCPv6 timeout handling (this function must be called every 500ms, - * see @ref DHCP6_TIMER_MSECS). - * - * A DHCPv6 server is expected to respond within a short period of time. - * This timer checks whether an outstanding DHCPv6 request is timed out. - */ -void -dhcp6_tmr(void) -{ - struct netif *netif; - /* loop through netif's */ - NETIF_FOREACH(netif) { - struct dhcp6 *dhcp6 = netif_dhcp6_data(netif); - /* only act on DHCPv6 configured interfaces */ - if (dhcp6 != NULL) { - /* timer is active (non zero), and is about to trigger now */ - if (dhcp6->request_timeout > 1) { - dhcp6->request_timeout--; - } else if (dhcp6->request_timeout == 1) { - dhcp6->request_timeout--; - /* { dhcp6->request_timeout == 0 } */ - LWIP_DEBUGF(DHCP6_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("dhcp6_tmr(): request timeout\n")); - /* this client's request timeout triggered */ - dhcp6_timeout(netif, dhcp6); - } - } - } -} - -#endif /* LWIP_IPV6 && LWIP_IPV6_DHCP6 */ diff --git a/core/c/core/ipv6/ethip6.c b/core/c/core/ipv6/ethip6.c deleted file mode 100755 index 0a616b6..0000000 --- a/core/c/core/ipv6/ethip6.c +++ /dev/null @@ -1,123 +0,0 @@ -/** - * @file - * - * Ethernet output for IPv6. Uses ND tables for link-layer addressing. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV6 && LWIP_ETHERNET - -#include "lwip/ethip6.h" -#include "lwip/nd6.h" -#include "lwip/pbuf.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#include "lwip/inet_chksum.h" -#include "lwip/netif.h" -#include "lwip/icmp6.h" -#include "lwip/prot/ethernet.h" -#include "netif/ethernet.h" - -#include - -/** - * Resolve and fill-in Ethernet address header for outgoing IPv6 packet. - * - * For IPv6 multicast, corresponding Ethernet addresses - * are selected and the packet is transmitted on the link. - * - * For unicast addresses, ask the ND6 module what to do. It will either let us - * send the the packet right away, or queue the packet for later itself, unless - * an error occurs. - * - * @todo anycast addresses - * - * @param netif The lwIP network interface which the IP packet will be sent on. - * @param q The pbuf(s) containing the IP packet to be sent. - * @param ip6addr The IP address of the packet destination. - * - * @return - * - ERR_OK or the return value of @ref nd6_get_next_hop_addr_or_queue. - */ -err_t -ethip6_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr) -{ - struct eth_addr dest; - const u8_t *hwaddr; - err_t result; - - LWIP_ASSERT_CORE_LOCKED(); - - /* The destination IP address must be properly zoned from here on down. */ - IP6_ADDR_ZONECHECK_NETIF(ip6addr, netif); - - /* multicast destination IP address? */ - if (ip6_addr_ismulticast(ip6addr)) { - /* Hash IP multicast address to MAC address.*/ - dest.addr[0] = 0x33; - dest.addr[1] = 0x33; - dest.addr[2] = ((const u8_t *)(&(ip6addr->addr[3])))[0]; - dest.addr[3] = ((const u8_t *)(&(ip6addr->addr[3])))[1]; - dest.addr[4] = ((const u8_t *)(&(ip6addr->addr[3])))[2]; - dest.addr[5] = ((const u8_t *)(&(ip6addr->addr[3])))[3]; - - /* Send out. */ - return ethernet_output(netif, q, (const struct eth_addr*)(netif->hwaddr), &dest, ETHTYPE_IPV6); - } - - /* We have a unicast destination IP address */ - /* @todo anycast? */ - - /* Ask ND6 what to do with the packet. */ - result = nd6_get_next_hop_addr_or_queue(netif, q, ip6addr, &hwaddr); - if (result != ERR_OK) { - return result; - } - - /* If no hardware address is returned, nd6 has queued the packet for later. */ - if (hwaddr == NULL) { - return ERR_OK; - } - - /* Send out the packet using the returned hardware address. */ - SMEMCPY(dest.addr, hwaddr, 6); - return ethernet_output(netif, q, (const struct eth_addr*)(netif->hwaddr), &dest, ETHTYPE_IPV6); -} - -#endif /* LWIP_IPV6 && LWIP_ETHERNET */ diff --git a/core/c/core/ipv6/icmp6.c b/core/c/core/ipv6/icmp6.c deleted file mode 100755 index 7c93668..0000000 --- a/core/c/core/ipv6/icmp6.c +++ /dev/null @@ -1,425 +0,0 @@ -/** - * @file - * - * IPv6 version of ICMP, as per RFC 4443. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#include "lwip/opt.h" - -#if LWIP_ICMP6 && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/icmp6.h" -#include "lwip/prot/icmp6.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#include "lwip/inet_chksum.h" -#include "lwip/pbuf.h" -#include "lwip/netif.h" -#include "lwip/nd6.h" -#include "lwip/mld6.h" -#include "lwip/ip.h" -#include "lwip/stats.h" - -#include - -#if LWIP_ICMP6_DATASIZE == 0 -#undef LWIP_ICMP6_DATASIZE -#define LWIP_ICMP6_DATASIZE 8 -#endif - -/* Forward declarations */ -static void icmp6_send_response(struct pbuf *p, u8_t code, u32_t data, u8_t type); -static void icmp6_send_response_with_addrs(struct pbuf *p, u8_t code, u32_t data, - u8_t type, const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr); -static void icmp6_send_response_with_addrs_and_netif(struct pbuf *p, u8_t code, u32_t data, - u8_t type, const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr, struct netif *netif); - - -/** - * Process an input ICMPv6 message. Called by ip6_input. - * - * Will generate a reply for echo requests. Other messages are forwarded - * to nd6_input, or mld6_input. - * - * @param p the mld packet, p->payload pointing to the icmpv6 header - * @param inp the netif on which this packet was received - */ -void -icmp6_input(struct pbuf *p, struct netif *inp) -{ - struct icmp6_hdr *icmp6hdr; - struct pbuf *r; - const ip6_addr_t *reply_src; - - ICMP6_STATS_INC(icmp6.recv); - - /* Check that ICMPv6 header fits in payload */ - if (p->len < sizeof(struct icmp6_hdr)) { - /* drop short packets */ - pbuf_free(p); - ICMP6_STATS_INC(icmp6.lenerr); - ICMP6_STATS_INC(icmp6.drop); - return; - } - - icmp6hdr = (struct icmp6_hdr *)p->payload; - -#if CHECKSUM_CHECK_ICMP6 - IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_CHECK_ICMP6) { - if (ip6_chksum_pseudo(p, IP6_NEXTH_ICMP6, p->tot_len, ip6_current_src_addr(), - ip6_current_dest_addr()) != 0) { - /* Checksum failed */ - pbuf_free(p); - ICMP6_STATS_INC(icmp6.chkerr); - ICMP6_STATS_INC(icmp6.drop); - return; - } - } -#endif /* CHECKSUM_CHECK_ICMP6 */ - - switch (icmp6hdr->type) { - case ICMP6_TYPE_NA: /* Neighbor advertisement */ - case ICMP6_TYPE_NS: /* Neighbor solicitation */ - case ICMP6_TYPE_RA: /* Router advertisement */ - case ICMP6_TYPE_RD: /* Redirect */ - case ICMP6_TYPE_PTB: /* Packet too big */ - nd6_input(p, inp); - return; - case ICMP6_TYPE_RS: -#if LWIP_IPV6_FORWARD - /* @todo implement router functionality */ -#endif - break; -#if LWIP_IPV6_MLD - case ICMP6_TYPE_MLQ: - case ICMP6_TYPE_MLR: - case ICMP6_TYPE_MLD: - mld6_input(p, inp); - return; -#endif - case ICMP6_TYPE_EREQ: -#if !LWIP_MULTICAST_PING - /* multicast destination address? */ - if (ip6_addr_ismulticast(ip6_current_dest_addr())) { - /* drop */ - pbuf_free(p); - ICMP6_STATS_INC(icmp6.drop); - return; - } -#endif /* LWIP_MULTICAST_PING */ - - /* Allocate reply. */ - r = pbuf_alloc(PBUF_IP, p->tot_len, PBUF_RAM); - if (r == NULL) { - /* drop */ - pbuf_free(p); - ICMP6_STATS_INC(icmp6.memerr); - return; - } - - /* Copy echo request. */ - if (pbuf_copy(r, p) != ERR_OK) { - /* drop */ - pbuf_free(p); - pbuf_free(r); - ICMP6_STATS_INC(icmp6.err); - return; - } - - /* Determine reply source IPv6 address. */ -#if LWIP_MULTICAST_PING - if (ip6_addr_ismulticast(ip6_current_dest_addr())) { - reply_src = ip_2_ip6(ip6_select_source_address(inp, ip6_current_src_addr())); - if (reply_src == NULL) { - /* drop */ - pbuf_free(p); - pbuf_free(r); - ICMP6_STATS_INC(icmp6.rterr); - return; - } - } - else -#endif /* LWIP_MULTICAST_PING */ - { - reply_src = ip6_current_dest_addr(); - } - - /* Set fields in reply. */ - ((struct icmp6_echo_hdr *)(r->payload))->type = ICMP6_TYPE_EREP; - ((struct icmp6_echo_hdr *)(r->payload))->chksum = 0; -#if CHECKSUM_GEN_ICMP6 - IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_GEN_ICMP6) { - ((struct icmp6_echo_hdr *)(r->payload))->chksum = ip6_chksum_pseudo(r, - IP6_NEXTH_ICMP6, r->tot_len, reply_src, ip6_current_src_addr()); - } -#endif /* CHECKSUM_GEN_ICMP6 */ - - /* Send reply. */ - ICMP6_STATS_INC(icmp6.xmit); - ip6_output_if(r, reply_src, ip6_current_src_addr(), - LWIP_ICMP6_HL, 0, IP6_NEXTH_ICMP6, inp); - pbuf_free(r); - - break; - default: - ICMP6_STATS_INC(icmp6.proterr); - ICMP6_STATS_INC(icmp6.drop); - break; - } - - pbuf_free(p); -} - - -/** - * Send an icmpv6 'destination unreachable' packet. - * - * This function must be used only in direct response to a packet that is being - * received right now. Otherwise, address zones would be lost. - * - * @param p the input packet for which the 'unreachable' should be sent, - * p->payload pointing to the IPv6 header - * @param c ICMPv6 code for the unreachable type - */ -void -icmp6_dest_unreach(struct pbuf *p, enum icmp6_dur_code c) -{ - icmp6_send_response(p, c, 0, ICMP6_TYPE_DUR); -} - -/** - * Send an icmpv6 'packet too big' packet. - * - * This function must be used only in direct response to a packet that is being - * received right now. Otherwise, address zones would be lost. - * - * @param p the input packet for which the 'packet too big' should be sent, - * p->payload pointing to the IPv6 header - * @param mtu the maximum mtu that we can accept - */ -void -icmp6_packet_too_big(struct pbuf *p, u32_t mtu) -{ - icmp6_send_response(p, 0, mtu, ICMP6_TYPE_PTB); -} - -/** - * Send an icmpv6 'time exceeded' packet. - * - * This function must be used only in direct response to a packet that is being - * received right now. Otherwise, address zones would be lost. - * - * @param p the input packet for which the 'time exceeded' should be sent, - * p->payload pointing to the IPv6 header - * @param c ICMPv6 code for the time exceeded type - */ -void -icmp6_time_exceeded(struct pbuf *p, enum icmp6_te_code c) -{ - icmp6_send_response(p, c, 0, ICMP6_TYPE_TE); -} - -/** - * Send an icmpv6 'time exceeded' packet, with explicit source and destination - * addresses. - * - * This function may be used to send a response sometime after receiving the - * packet for which this response is meant. The provided source and destination - * addresses are used primarily to retain their zone information. - * - * @param p the input packet for which the 'time exceeded' should be sent, - * p->payload pointing to the IPv6 header - * @param c ICMPv6 code for the time exceeded type - * @param src_addr source address of the original packet, with zone information - * @param dest_addr destination address of the original packet, with zone - * information - */ -void -icmp6_time_exceeded_with_addrs(struct pbuf *p, enum icmp6_te_code c, - const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr) -{ - icmp6_send_response_with_addrs(p, c, 0, ICMP6_TYPE_TE, src_addr, dest_addr); -} - -/** - * Send an icmpv6 'parameter problem' packet. - * - * This function must be used only in direct response to a packet that is being - * received right now. Otherwise, address zones would be lost and the calculated - * offset would be wrong (calculated against ip6_current_header()). - * - * @param p the input packet for which the 'param problem' should be sent, - * p->payload pointing to the IP header - * @param c ICMPv6 code for the param problem type - * @param pointer the pointer to the byte where the parameter is found - */ -void -icmp6_param_problem(struct pbuf *p, enum icmp6_pp_code c, const void *pointer) -{ - u32_t pointer_u32 = (u32_t)((const u8_t *)pointer - (const u8_t *)ip6_current_header()); - icmp6_send_response(p, c, pointer_u32, ICMP6_TYPE_PP); -} - -/** - * Send an ICMPv6 packet in response to an incoming packet. - * The packet is sent *to* ip_current_src_addr() on ip_current_netif(). - * - * @param p the input packet for which the response should be sent, - * p->payload pointing to the IPv6 header - * @param code Code of the ICMPv6 header - * @param data Additional 32-bit parameter in the ICMPv6 header - * @param type Type of the ICMPv6 header - */ -static void -icmp6_send_response(struct pbuf *p, u8_t code, u32_t data, u8_t type) -{ - const struct ip6_addr *reply_src, *reply_dest; - struct netif *netif = ip_current_netif(); - - LWIP_ASSERT("icmpv6 packet not a direct response", netif != NULL); - reply_dest = ip6_current_src_addr(); - - /* Select an address to use as source. */ - reply_src = ip_2_ip6(ip6_select_source_address(netif, reply_dest)); - if (reply_src == NULL) { - ICMP6_STATS_INC(icmp6.rterr); - return; - } - icmp6_send_response_with_addrs_and_netif(p, code, data, type, reply_src, reply_dest, netif); -} - -/** - * Send an ICMPv6 packet in response to an incoming packet. - * - * Call this function if the packet is NOT sent as a direct response to an - * incoming packet, but rather sometime later (e.g. for a fragment reassembly - * timeout). The caller must provide the zoned source and destination addresses - * from the original packet with the src_addr and dest_addr parameters. The - * reason for this approach is that while the addresses themselves are part of - * the original packet, their zone information is not, thus possibly resulting - * in a link-local response being sent over the wrong link. - * - * @param p the input packet for which the response should be sent, - * p->payload pointing to the IPv6 header - * @param code Code of the ICMPv6 header - * @param data Additional 32-bit parameter in the ICMPv6 header - * @param type Type of the ICMPv6 header - * @param src_addr original source address - * @param dest_addr original destination address - */ -static void -icmp6_send_response_with_addrs(struct pbuf *p, u8_t code, u32_t data, u8_t type, - const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr) -{ - const struct ip6_addr *reply_src, *reply_dest; - struct netif *netif; - - /* Get the destination address and netif for this ICMP message. */ - LWIP_ASSERT("must provide both source and destination", src_addr != NULL); - LWIP_ASSERT("must provide both source and destination", dest_addr != NULL); - - /* Special case, as ip6_current_xxx is either NULL, or points - to a different packet than the one that expired. */ - IP6_ADDR_ZONECHECK(src_addr); - IP6_ADDR_ZONECHECK(dest_addr); - /* Swap source and destination for the reply. */ - reply_dest = src_addr; - reply_src = dest_addr; - netif = ip6_route(reply_src, reply_dest); - if (netif == NULL) { - ICMP6_STATS_INC(icmp6.rterr); - return; - } - icmp6_send_response_with_addrs_and_netif(p, code, data, type, reply_src, - reply_dest, netif); -} - -/** - * Send an ICMPv6 packet (with srd/dst address and netif given). - * - * @param p the input packet for which the response should be sent, - * p->payload pointing to the IPv6 header - * @param code Code of the ICMPv6 header - * @param data Additional 32-bit parameter in the ICMPv6 header - * @param type Type of the ICMPv6 header - * @param reply_src source address of the packet to send - * @param reply_dest destination address of the packet to send - * @param netif netif to send the packet - */ -static void -icmp6_send_response_with_addrs_and_netif(struct pbuf *p, u8_t code, u32_t data, u8_t type, - const ip6_addr_t *reply_src, const ip6_addr_t *reply_dest, struct netif *netif) -{ - struct pbuf *q; - struct icmp6_hdr *icmp6hdr; - - /* ICMPv6 header + IPv6 header + data */ - q = pbuf_alloc(PBUF_IP, sizeof(struct icmp6_hdr) + IP6_HLEN + LWIP_ICMP6_DATASIZE, - PBUF_RAM); - if (q == NULL) { - LWIP_DEBUGF(ICMP_DEBUG, ("icmp_time_exceeded: failed to allocate pbuf for ICMPv6 packet.\n")); - ICMP6_STATS_INC(icmp6.memerr); - return; - } - LWIP_ASSERT("check that first pbuf can hold icmp 6message", - (q->len >= (sizeof(struct icmp6_hdr) + IP6_HLEN + LWIP_ICMP6_DATASIZE))); - - icmp6hdr = (struct icmp6_hdr *)q->payload; - icmp6hdr->type = type; - icmp6hdr->code = code; - icmp6hdr->data = lwip_htonl(data); - - /* copy fields from original packet */ - SMEMCPY((u8_t *)q->payload + sizeof(struct icmp6_hdr), (u8_t *)p->payload, - IP6_HLEN + LWIP_ICMP6_DATASIZE); - - /* calculate checksum */ - icmp6hdr->chksum = 0; -#if CHECKSUM_GEN_ICMP6 - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP6) { - icmp6hdr->chksum = ip6_chksum_pseudo(q, IP6_NEXTH_ICMP6, q->tot_len, - reply_src, reply_dest); - } -#endif /* CHECKSUM_GEN_ICMP6 */ - - ICMP6_STATS_INC(icmp6.xmit); - ip6_output_if(q, reply_src, reply_dest, LWIP_ICMP6_HL, 0, IP6_NEXTH_ICMP6, netif); - pbuf_free(q); -} - -#endif /* LWIP_ICMP6 && LWIP_IPV6 */ diff --git a/core/c/core/ipv6/inet6.c b/core/c/core/ipv6/inet6.c deleted file mode 100755 index 7cb16aa..0000000 --- a/core/c/core/ipv6/inet6.c +++ /dev/null @@ -1,53 +0,0 @@ -/** - * @file - * - * INET v6 addresses. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV6 && LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/def.h" -#include "lwip/inet.h" - -/** This variable is initialized by the system to contain the wildcard IPv6 address. - */ -const struct in6_addr in6addr_any = IN6ADDR_ANY_INIT; - -#endif /* LWIP_IPV6 */ diff --git a/core/c/core/ipv6/ip6.c b/core/c/core/ipv6/ip6.c deleted file mode 100755 index 0ede432..0000000 --- a/core/c/core/ipv6/ip6.c +++ /dev/null @@ -1,1505 +0,0 @@ -/** - * @file - * - * IPv6 layer. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/def.h" -#include "lwip/mem.h" -#include "lwip/netif.h" -#include "lwip/ip.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#include "lwip/ip6_frag.h" -#include "lwip/icmp6.h" -#include "lwip/priv/raw_priv.h" -#include "lwip/udp.h" -#include "lwip/priv/tcp_priv.h" -#include "lwip/dhcp6.h" -#include "lwip/nd6.h" -#include "lwip/mld6.h" -#include "lwip/debug.h" -#include "lwip/stats.h" - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif - -/** - * Finds the appropriate network interface for a given IPv6 address. It tries to select - * a netif following a sequence of heuristics: - * 1) if there is only 1 netif, return it - * 2) if the destination is a zoned address, match its zone to a netif - * 3) if the either the source or destination address is a scoped address, - * match the source address's zone (if set) or address (if not) to a netif - * 4) tries to match the destination subnet to a configured address - * 5) tries to find a router-announced route - * 6) tries to match the (unscoped) source address to the netif - * 7) returns the default netif, if configured - * - * Note that each of the two given addresses may or may not be properly zoned. - * - * @param src the source IPv6 address, if known - * @param dest the destination IPv6 address for which to find the route - * @return the netif on which to send to reach dest - */ -struct netif * -ip6_route(const ip6_addr_t *src, const ip6_addr_t *dest) -{ -#if TUN2SOCKS - // go-tun2socks logic - // no routing and just use the default netif, netif_list[0], i.e., the loopif - // enable loopif by setting LWIP_HAVE_LOOPIF = 1 in lwipopts.h - return netif_list; -#endif /* TUN2SOCKS */ - -#if LWIP_SINGLE_NETIF - LWIP_UNUSED_ARG(src); - LWIP_UNUSED_ARG(dest); -#else /* LWIP_SINGLE_NETIF */ - struct netif *netif; - s8_t i; - - LWIP_ASSERT_CORE_LOCKED(); - - /* If single netif configuration, fast return. */ - if ((netif_list != NULL) && (netif_list->next == NULL)) { - if (!netif_is_up(netif_list) || !netif_is_link_up(netif_list) || - (ip6_addr_has_zone(dest) && !ip6_addr_test_zone(dest, netif_list))) { - return NULL; - } - return netif_list; - } - -#if LWIP_IPV6_SCOPES - /* Special processing for zoned destination addresses. This includes link- - * local unicast addresses and interface/link-local multicast addresses. Use - * the zone to find a matching netif. If the address is not zoned, then there - * is technically no "wrong" netif to choose, and we leave routing to other - * rules; in most cases this should be the scoped-source rule below. */ - if (ip6_addr_has_zone(dest)) { - IP6_ADDR_ZONECHECK(dest); - /* Find a netif based on the zone. For custom mappings, one zone may map - * to multiple netifs, so find one that can actually send a packet. */ - NETIF_FOREACH(netif) { - if (ip6_addr_test_zone(dest, netif) && - netif_is_up(netif) && netif_is_link_up(netif)) { - return netif; - } - } - /* No matching netif found. Do no try to route to a different netif, - * as that would be a zone violation, resulting in any packets sent to - * that netif being dropped on output. */ - return NULL; - } -#endif /* LWIP_IPV6_SCOPES */ - - /* Special processing for scoped source and destination addresses. If we get - * here, the destination address does not have a zone, so either way we need - * to look at the source address, which may or may not have a zone. If it - * does, the zone is restrictive: there is (typically) only one matching - * netif for it, and we should avoid routing to any other netif as that would - * result in guaranteed zone violations. For scoped source addresses that do - * not have a zone, use (only) a netif that has that source address locally - * assigned. This case also applies to the loopback source address, which has - * an implied link-local scope. If only the destination address is scoped - * (but, again, not zoned), we still want to use only the source address to - * determine its zone because that's most likely what the user/application - * wants, regardless of whether the source address is scoped. Finally, some - * of this story also applies if scoping is disabled altogether. */ -#if LWIP_IPV6_SCOPES - if (ip6_addr_has_scope(dest, IP6_UNKNOWN) || - ip6_addr_has_scope(src, IP6_UNICAST) || -#else /* LWIP_IPV6_SCOPES */ - if (ip6_addr_islinklocal(dest) || ip6_addr_ismulticast_iflocal(dest) || - ip6_addr_ismulticast_linklocal(dest) || ip6_addr_islinklocal(src) || -#endif /* LWIP_IPV6_SCOPES */ - ip6_addr_isloopback(src)) { -#if LWIP_IPV6_SCOPES - if (ip6_addr_has_zone(src)) { - /* Find a netif matching the source zone (relatively cheap). */ - NETIF_FOREACH(netif) { - if (netif_is_up(netif) && netif_is_link_up(netif) && - ip6_addr_test_zone(src, netif)) { - return netif; - } - } - } else -#endif /* LWIP_IPV6_SCOPES */ - { - /* Find a netif matching the source address (relatively expensive). */ - NETIF_FOREACH(netif) { - if (!netif_is_up(netif) || !netif_is_link_up(netif)) { - continue; - } - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && - ip6_addr_cmp_zoneless(src, netif_ip6_addr(netif, i))) { - return netif; - } - } - } - } - /* Again, do not use any other netif in this case, as that could result in - * zone boundary violations. */ - return NULL; - } - - /* We come here only if neither source nor destination is scoped. */ - IP6_ADDR_ZONECHECK(src); - -#ifdef LWIP_HOOK_IP6_ROUTE - netif = LWIP_HOOK_IP6_ROUTE(src, dest); - if (netif != NULL) { - return netif; - } -#endif - - /* See if the destination subnet matches a configured address. In accordance - * with RFC 5942, dynamically configured addresses do not have an implied - * local subnet, and thus should be considered /128 assignments. However, as - * such, the destination address may still match a local address, and so we - * still need to check for exact matches here. By (lwIP) policy, statically - * configured addresses do always have an implied local /64 subnet. */ - NETIF_FOREACH(netif) { - if (!netif_is_up(netif) || !netif_is_link_up(netif)) { - continue; - } - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && - ip6_addr_netcmp(dest, netif_ip6_addr(netif, i)) && - (netif_ip6_addr_isstatic(netif, i) || - ip6_addr_nethostcmp(dest, netif_ip6_addr(netif, i)))) { - return netif; - } - } - } - - /* Get the netif for a suitable router-announced route. */ - netif = nd6_find_route(dest); - if (netif != NULL) { - return netif; - } - - /* Try with the netif that matches the source address. Given the earlier rule - * for scoped source addresses, this applies to unscoped addresses only. */ - if (!ip6_addr_isany(src)) { - NETIF_FOREACH(netif) { - if (!netif_is_up(netif) || !netif_is_link_up(netif)) { - continue; - } - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && - ip6_addr_cmp(src, netif_ip6_addr(netif, i))) { - return netif; - } - } - } - } - -#if LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF - /* loopif is disabled, loopback traffic is passed through any netif */ - if (ip6_addr_isloopback(dest)) { - /* don't check for link on loopback traffic */ - if (netif_default != NULL && netif_is_up(netif_default)) { - return netif_default; - } - /* default netif is not up, just use any netif for loopback traffic */ - NETIF_FOREACH(netif) { - if (netif_is_up(netif)) { - return netif; - } - } - return NULL; - } -#endif /* LWIP_NETIF_LOOPBACK && !LWIP_HAVE_LOOPIF */ -#endif /* !LWIP_SINGLE_NETIF */ - - /* no matching netif found, use default netif, if up */ - if ((netif_default == NULL) || !netif_is_up(netif_default) || !netif_is_link_up(netif_default)) { - return NULL; - } - return netif_default; -} - -/** - * @ingroup ip6 - * Select the best IPv6 source address for a given destination IPv6 address. - * - * This implementation follows RFC 6724 Sec. 5 to the following extent: - * - Rules 1, 2, 3: fully implemented - * - Rules 4, 5, 5.5: not applicable - * - Rule 6: not implemented - * - Rule 7: not applicable - * - Rule 8: limited to "prefer /64 subnet match over non-match" - * - * For Rule 2, we deliberately deviate from RFC 6724 Sec. 3.1 by considering - * ULAs to be of smaller scope than global addresses, to avoid that a preferred - * ULA is picked over a deprecated global address when given a global address - * as destination, as that would likely result in broken two-way communication. - * - * As long as temporary addresses are not supported (as used in Rule 7), a - * proper implementation of Rule 8 would obviate the need to implement Rule 6. - * - * @param netif the netif on which to send a packet - * @param dest the destination we are trying to reach (possibly not properly - * zoned) - * @return the most suitable source address to use, or NULL if no suitable - * source address is found - */ -const ip_addr_t * -ip6_select_source_address(struct netif *netif, const ip6_addr_t *dest) -{ - const ip_addr_t *best_addr; - const ip6_addr_t *cand_addr; - s8_t dest_scope, cand_scope; - s8_t best_scope = IP6_MULTICAST_SCOPE_RESERVED; - u8_t i, cand_pref, cand_bits; - u8_t best_pref = 0; - u8_t best_bits = 0; - - /* Start by determining the scope of the given destination address. These - * tests are hopefully (roughly) in order of likeliness to match. */ - if (ip6_addr_isglobal(dest)) { - dest_scope = IP6_MULTICAST_SCOPE_GLOBAL; - } else if (ip6_addr_islinklocal(dest) || ip6_addr_isloopback(dest)) { - dest_scope = IP6_MULTICAST_SCOPE_LINK_LOCAL; - } else if (ip6_addr_isuniquelocal(dest)) { - dest_scope = IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL; - } else if (ip6_addr_ismulticast(dest)) { - dest_scope = ip6_addr_multicast_scope(dest); - } else if (ip6_addr_issitelocal(dest)) { - dest_scope = IP6_MULTICAST_SCOPE_SITE_LOCAL; - } else { - /* no match, consider scope global */ - dest_scope = IP6_MULTICAST_SCOPE_GLOBAL; - } - - best_addr = NULL; - - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - /* Consider only valid (= preferred and deprecated) addresses. */ - if (!ip6_addr_isvalid(netif_ip6_addr_state(netif, i))) { - continue; - } - /* Determine the scope of this candidate address. Same ordering idea. */ - cand_addr = netif_ip6_addr(netif, i); - if (ip6_addr_isglobal(cand_addr)) { - cand_scope = IP6_MULTICAST_SCOPE_GLOBAL; - } else if (ip6_addr_islinklocal(cand_addr)) { - cand_scope = IP6_MULTICAST_SCOPE_LINK_LOCAL; - } else if (ip6_addr_isuniquelocal(cand_addr)) { - cand_scope = IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL; - } else if (ip6_addr_issitelocal(cand_addr)) { - cand_scope = IP6_MULTICAST_SCOPE_SITE_LOCAL; - } else { - /* no match, treat as low-priority global scope */ - cand_scope = IP6_MULTICAST_SCOPE_RESERVEDF; - } - cand_pref = ip6_addr_ispreferred(netif_ip6_addr_state(netif, i)); - /* @todo compute the actual common bits, for longest matching prefix. */ - /* We cannot count on the destination address having a proper zone - * assignment, so do not compare zones in this case. */ - cand_bits = ip6_addr_netcmp_zoneless(cand_addr, dest); /* just 1 or 0 for now */ - if (cand_bits && ip6_addr_nethostcmp(cand_addr, dest)) { - return netif_ip_addr6(netif, i); /* Rule 1 */ - } - if ((best_addr == NULL) || /* no alternative yet */ - ((cand_scope < best_scope) && (cand_scope >= dest_scope)) || - ((cand_scope > best_scope) && (best_scope < dest_scope)) || /* Rule 2 */ - ((cand_scope == best_scope) && ((cand_pref > best_pref) || /* Rule 3 */ - ((cand_pref == best_pref) && (cand_bits > best_bits))))) { /* Rule 8 */ - /* We found a new "winning" candidate. */ - best_addr = netif_ip_addr6(netif, i); - best_scope = cand_scope; - best_pref = cand_pref; - best_bits = cand_bits; - } - } - - return best_addr; /* may be NULL */ -} - -#if LWIP_IPV6_FORWARD -/** - * Forwards an IPv6 packet. It finds an appropriate route for the - * packet, decrements the HL value of the packet, and outputs - * the packet on the appropriate interface. - * - * @param p the packet to forward (p->payload points to IP header) - * @param iphdr the IPv6 header of the input packet - * @param inp the netif on which this packet was received - */ -static void -ip6_forward(struct pbuf *p, struct ip6_hdr *iphdr, struct netif *inp) -{ - struct netif *netif; - - /* do not forward link-local or loopback addresses */ - if (ip6_addr_islinklocal(ip6_current_dest_addr()) || - ip6_addr_isloopback(ip6_current_dest_addr())) { - LWIP_DEBUGF(IP6_DEBUG, ("ip6_forward: not forwarding link-local address.\n")); - IP6_STATS_INC(ip6.rterr); - IP6_STATS_INC(ip6.drop); - return; - } - - /* Find network interface where to forward this IP packet to. */ - netif = ip6_route(IP6_ADDR_ANY6, ip6_current_dest_addr()); - if (netif == NULL) { - LWIP_DEBUGF(IP6_DEBUG, ("ip6_forward: no route for %"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F"\n", - IP6_ADDR_BLOCK1(ip6_current_dest_addr()), - IP6_ADDR_BLOCK2(ip6_current_dest_addr()), - IP6_ADDR_BLOCK3(ip6_current_dest_addr()), - IP6_ADDR_BLOCK4(ip6_current_dest_addr()), - IP6_ADDR_BLOCK5(ip6_current_dest_addr()), - IP6_ADDR_BLOCK6(ip6_current_dest_addr()), - IP6_ADDR_BLOCK7(ip6_current_dest_addr()), - IP6_ADDR_BLOCK8(ip6_current_dest_addr()))); -#if LWIP_ICMP6 - /* Don't send ICMP messages in response to ICMP messages */ - if (IP6H_NEXTH(iphdr) != IP6_NEXTH_ICMP6) { - icmp6_dest_unreach(p, ICMP6_DUR_NO_ROUTE); - } -#endif /* LWIP_ICMP6 */ - IP6_STATS_INC(ip6.rterr); - IP6_STATS_INC(ip6.drop); - return; - } -#if LWIP_IPV6_SCOPES - /* Do not forward packets with a zoned (e.g., link-local) source address - * outside of their zone. We determined the zone a bit earlier, so we know - * that the address is properly zoned here, so we can safely use has_zone. - * Also skip packets with a loopback source address (link-local implied). */ - if ((ip6_addr_has_zone(ip6_current_src_addr()) && - !ip6_addr_test_zone(ip6_current_src_addr(), netif)) || - ip6_addr_isloopback(ip6_current_src_addr())) { - LWIP_DEBUGF(IP6_DEBUG, ("ip6_forward: not forwarding packet beyond its source address zone.\n")); - IP6_STATS_INC(ip6.rterr); - IP6_STATS_INC(ip6.drop); - return; - } -#endif /* LWIP_IPV6_SCOPES */ - /* Do not forward packets onto the same network interface on which - * they arrived. */ - if (netif == inp) { - LWIP_DEBUGF(IP6_DEBUG, ("ip6_forward: not bouncing packets back on incoming interface.\n")); - IP6_STATS_INC(ip6.rterr); - IP6_STATS_INC(ip6.drop); - return; - } - - /* decrement HL */ - IP6H_HOPLIM_SET(iphdr, IP6H_HOPLIM(iphdr) - 1); - /* send ICMP6 if HL == 0 */ - if (IP6H_HOPLIM(iphdr) == 0) { -#if LWIP_ICMP6 - /* Don't send ICMP messages in response to ICMP messages */ - if (IP6H_NEXTH(iphdr) != IP6_NEXTH_ICMP6) { - icmp6_time_exceeded(p, ICMP6_TE_HL); - } -#endif /* LWIP_ICMP6 */ - IP6_STATS_INC(ip6.drop); - return; - } - - if (netif->mtu && (p->tot_len > netif->mtu)) { -#if LWIP_ICMP6 - /* Don't send ICMP messages in response to ICMP messages */ - if (IP6H_NEXTH(iphdr) != IP6_NEXTH_ICMP6) { - icmp6_packet_too_big(p, netif->mtu); - } -#endif /* LWIP_ICMP6 */ - IP6_STATS_INC(ip6.drop); - return; - } - - LWIP_DEBUGF(IP6_DEBUG, ("ip6_forward: forwarding packet to %"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F"\n", - IP6_ADDR_BLOCK1(ip6_current_dest_addr()), - IP6_ADDR_BLOCK2(ip6_current_dest_addr()), - IP6_ADDR_BLOCK3(ip6_current_dest_addr()), - IP6_ADDR_BLOCK4(ip6_current_dest_addr()), - IP6_ADDR_BLOCK5(ip6_current_dest_addr()), - IP6_ADDR_BLOCK6(ip6_current_dest_addr()), - IP6_ADDR_BLOCK7(ip6_current_dest_addr()), - IP6_ADDR_BLOCK8(ip6_current_dest_addr()))); - - /* transmit pbuf on chosen interface */ - netif->output_ip6(netif, p, ip6_current_dest_addr()); - IP6_STATS_INC(ip6.fw); - IP6_STATS_INC(ip6.xmit); - return; -} -#endif /* LWIP_IPV6_FORWARD */ - -/** Return true if the current input packet should be accepted on this netif */ -static int -ip6_input_accept(struct netif *netif) -{ -#if TUN2SOCKS - // go-tun2socks logic - // all packets are accepted by the first one, and it should be the loopif - return 1; -#endif /* TUN2SOCKS */ - - /* interface is up? */ - if (netif_is_up(netif)) { - u8_t i; - /* unicast to this interface address? address configured? */ - /* If custom scopes are used, the destination zone will be tested as - * part of the local-address comparison, but we need to test the source - * scope as well (e.g., is this interface on the same link?). */ - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && - ip6_addr_cmp(ip6_current_dest_addr(), netif_ip6_addr(netif, i)) -#if IPV6_CUSTOM_SCOPES - && (!ip6_addr_has_zone(ip6_current_src_addr()) || - ip6_addr_test_zone(ip6_current_src_addr(), netif)) -#endif /* IPV6_CUSTOM_SCOPES */ - ) { - /* accept on this netif */ - return 1; - } - } - } - return 0; -} - -/** - * This function is called by the network interface device driver when - * an IPv6 packet is received. The function does the basic checks of the - * IP header such as packet size being at least larger than the header - * size etc. If the packet was not destined for us, the packet is - * forwarded (using ip6_forward). - * - * Finally, the packet is sent to the upper layer protocol input function. - * - * @param p the received IPv6 packet (p->payload points to IPv6 header) - * @param inp the netif on which this packet was received - * @return ERR_OK if the packet was processed (could return ERR_* if it wasn't - * processed, but currently always returns ERR_OK) - */ -err_t -ip6_input(struct pbuf *p, struct netif *inp) -{ - struct ip6_hdr *ip6hdr; - struct netif *netif; - const u8_t *nexth; - u16_t hlen, hlen_tot; /* the current header length */ -#if 0 /*IP_ACCEPT_LINK_LAYER_ADDRESSING*/ - @todo - int check_ip_src=1; -#endif /* IP_ACCEPT_LINK_LAYER_ADDRESSING */ -#if LWIP_RAW - raw_input_state_t raw_status; -#endif /* LWIP_RAW */ - - LWIP_ASSERT_CORE_LOCKED(); - - IP6_STATS_INC(ip6.recv); - - /* identify the IP header */ - ip6hdr = (struct ip6_hdr *)p->payload; - if (IP6H_V(ip6hdr) != 6) { - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_WARNING, ("IPv6 packet dropped due to bad version number %"U32_F"\n", - IP6H_V(ip6hdr))); - pbuf_free(p); - IP6_STATS_INC(ip6.err); - IP6_STATS_INC(ip6.drop); - return ERR_OK; - } - -#ifdef LWIP_HOOK_IP6_INPUT - if (LWIP_HOOK_IP6_INPUT(p, inp)) { - /* the packet has been eaten */ - return ERR_OK; - } -#endif - - /* header length exceeds first pbuf length, or ip length exceeds total pbuf length? */ - if ((IP6_HLEN > p->len) || (IP6H_PLEN(ip6hdr) > (p->tot_len - IP6_HLEN))) { - if (IP6_HLEN > p->len) { - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("IPv6 header (len %"U16_F") does not fit in first pbuf (len %"U16_F"), IP packet dropped.\n", - (u16_t)IP6_HLEN, p->len)); - } - if ((IP6H_PLEN(ip6hdr) + IP6_HLEN) > p->tot_len) { - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("IPv6 (plen %"U16_F") is longer than pbuf (len %"U16_F"), IP packet dropped.\n", - (u16_t)(IP6H_PLEN(ip6hdr) + IP6_HLEN), p->tot_len)); - } - /* free (drop) packet pbufs */ - pbuf_free(p); - IP6_STATS_INC(ip6.lenerr); - IP6_STATS_INC(ip6.drop); - return ERR_OK; - } - - /* Trim pbuf. This should have been done at the netif layer, - * but we'll do it anyway just to be sure that its done. */ - pbuf_realloc(p, (u16_t)(IP6_HLEN + IP6H_PLEN(ip6hdr))); - - /* copy IP addresses to aligned ip6_addr_t */ - ip_addr_copy_from_ip6_packed(ip_data.current_iphdr_dest, ip6hdr->dest); - ip_addr_copy_from_ip6_packed(ip_data.current_iphdr_src, ip6hdr->src); - - /* Don't accept virtual IPv4 mapped IPv6 addresses. - * Don't accept multicast source addresses. */ - if (ip6_addr_isipv4mappedipv6(ip_2_ip6(&ip_data.current_iphdr_dest)) || - ip6_addr_isipv4mappedipv6(ip_2_ip6(&ip_data.current_iphdr_src)) || - ip6_addr_ismulticast(ip_2_ip6(&ip_data.current_iphdr_src))) { - /* free (drop) packet pbufs */ - pbuf_free(p); - IP6_STATS_INC(ip6.err); - IP6_STATS_INC(ip6.drop); - return ERR_OK; - } - - /* Set the appropriate zone identifier on the addresses. */ - ip6_addr_assign_zone(ip_2_ip6(&ip_data.current_iphdr_dest), IP6_UNKNOWN, inp); - ip6_addr_assign_zone(ip_2_ip6(&ip_data.current_iphdr_src), IP6_UNICAST, inp); - - /* current header pointer. */ - ip_data.current_ip6_header = ip6hdr; - - /* In netif, used in case we need to send ICMPv6 packets back. */ - ip_data.current_netif = inp; - ip_data.current_input_netif = inp; - - /* match packet against an interface, i.e. is this packet for us? */ - if (ip6_addr_ismulticast(ip6_current_dest_addr())) { - /* Always joined to multicast if-local and link-local all-nodes group. */ - if (ip6_addr_isallnodes_iflocal(ip6_current_dest_addr()) || - ip6_addr_isallnodes_linklocal(ip6_current_dest_addr())) { - netif = inp; - } -#if LWIP_IPV6_MLD - else if (mld6_lookfor_group(inp, ip6_current_dest_addr())) { - netif = inp; - } -#else /* LWIP_IPV6_MLD */ - else if (ip6_addr_issolicitednode(ip6_current_dest_addr())) { - u8_t i; - /* Filter solicited node packets when MLD is not enabled - * (for Neighbor discovery). */ - netif = NULL; - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (ip6_addr_isvalid(netif_ip6_addr_state(inp, i)) && - ip6_addr_cmp_solicitednode(ip6_current_dest_addr(), netif_ip6_addr(inp, i))) { - netif = inp; - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: solicited node packet accepted on interface %c%c\n", - netif->name[0], netif->name[1])); - break; - } - } - } -#endif /* LWIP_IPV6_MLD */ - else { - netif = NULL; - } - } else { - /* start trying with inp. if that's not acceptable, start walking the - list of configured netifs. */ - if (ip6_input_accept(inp)) { - netif = inp; - } else { - netif = NULL; -#if !IPV6_CUSTOM_SCOPES - /* Shortcut: stop looking for other interfaces if either the source or - * the destination has a scope constrained to this interface. Custom - * scopes may break the 1:1 link/interface mapping, however. */ - if (ip6_addr_islinklocal(ip6_current_dest_addr()) || - ip6_addr_islinklocal(ip6_current_src_addr())) { - goto netif_found; - } -#endif /* !IPV6_CUSTOM_SCOPES */ -#if !LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF - /* The loopback address is to be considered link-local. Packets to it - * should be dropped on other interfaces, as per RFC 4291 Sec. 2.5.3. - * Its implied scope means packets *from* the loopback address should - * not be accepted on other interfaces, either. These requirements - * cannot be implemented in the case that loopback traffic is sent - * across a non-loopback interface, however. */ - if (ip6_addr_isloopback(ip6_current_dest_addr()) || - ip6_addr_isloopback(ip6_current_src_addr())) { - goto netif_found; - } -#endif /* !LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF */ -#if !LWIP_SINGLE_NETIF - NETIF_FOREACH(netif) { - if (netif == inp) { - /* we checked that before already */ - continue; - } - if (ip6_input_accept(netif)) { - break; - } - } -#endif /* !LWIP_SINGLE_NETIF */ - } -netif_found: - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet accepted on interface %c%c\n", - netif ? netif->name[0] : 'X', netif? netif->name[1] : 'X')); - } - - /* "::" packet source address? (used in duplicate address detection) */ - if (ip6_addr_isany(ip6_current_src_addr()) && - (!ip6_addr_issolicitednode(ip6_current_dest_addr()))) { - /* packet source is not valid */ - /* free (drop) packet pbufs */ - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with src ANY_ADDRESS dropped\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - } - - /* packet not for us? */ - if (netif == NULL) { - /* packet not for us, route or discard */ - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_TRACE, ("ip6_input: packet not for us.\n")); -#if LWIP_IPV6_FORWARD - /* non-multicast packet? */ - if (!ip6_addr_ismulticast(ip6_current_dest_addr())) { - /* try to forward IP packet on (other) interfaces */ - ip6_forward(p, ip6hdr, inp); - } -#endif /* LWIP_IPV6_FORWARD */ - pbuf_free(p); - goto ip6_input_cleanup; - } - - /* current netif pointer. */ - ip_data.current_netif = netif; - - /* Save next header type. */ - nexth = &IP6H_NEXTH(ip6hdr); - - /* Init header length. */ - hlen = hlen_tot = IP6_HLEN; - - /* Move to payload. */ - pbuf_remove_header(p, IP6_HLEN); - - /* Process known option extension headers, if present. */ - while (*nexth != IP6_NEXTH_NONE) - { - switch (*nexth) { - case IP6_NEXTH_HOPBYHOP: - { - s32_t opt_offset; - struct ip6_hbh_hdr *hbh_hdr; - struct ip6_opt_hdr *opt_hdr; - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Hop-by-Hop options header\n")); - - /* Get and check the header length, while staying in packet bounds. */ - hbh_hdr = (struct ip6_hbh_hdr *)p->payload; - - /* Get next header type. */ - nexth = &IP6_HBH_NEXTH(hbh_hdr); - - /* Get the header length. */ - hlen = (u16_t)(8 * (1 + hbh_hdr->_hlen)); - - if ((p->len < 8) || (hlen > p->len)) { - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n", - hlen, p->len)); - /* free (drop) packet pbufs */ - pbuf_free(p); - IP6_STATS_INC(ip6.lenerr); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - } - - hlen_tot = (u16_t)(hlen_tot + hlen); - - /* The extended option header starts right after Hop-by-Hop header. */ - opt_offset = IP6_HBH_HLEN; - while (opt_offset < hlen) - { - s32_t opt_dlen = 0; - - opt_hdr = (struct ip6_opt_hdr *)((u8_t *)hbh_hdr + opt_offset); - - switch (IP6_OPT_TYPE(opt_hdr)) { - /* @todo: process IPV6 Hop-by-Hop option data */ - case IP6_PAD1_OPTION: - /* PAD1 option doesn't have length and value field */ - opt_dlen = -1; - break; - case IP6_PADN_OPTION: - opt_dlen = IP6_OPT_DLEN(opt_hdr); - break; - case IP6_ROUTER_ALERT_OPTION: - opt_dlen = IP6_OPT_DLEN(opt_hdr); - break; - case IP6_JUMBO_OPTION: - opt_dlen = IP6_OPT_DLEN(opt_hdr); - break; - default: - /* Check 2 MSB of Hop-by-Hop header type. */ - switch (IP6_OPT_TYPE_ACTION(opt_hdr)) { - case 1: - /* Discard the packet. */ - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid Hop-by-Hop option type dropped.\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - case 2: - /* Send ICMP Parameter Problem */ - icmp6_param_problem(p, ICMP6_PP_OPTION, opt_hdr); - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid Hop-by-Hop option type dropped.\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - case 3: - /* Send ICMP Parameter Problem if destination address is not a multicast address */ - if (!ip6_addr_ismulticast(ip6_current_dest_addr())) { - icmp6_param_problem(p, ICMP6_PP_OPTION, opt_hdr); - } - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid Hop-by-Hop option type dropped.\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - default: - /* Skip over this option. */ - opt_dlen = IP6_OPT_DLEN(opt_hdr); - break; - } - break; - } - - /* Adjust the offset to move to the next extended option header */ - opt_offset = opt_offset + IP6_OPT_HLEN + opt_dlen; - } - pbuf_remove_header(p, hlen); - break; - } - case IP6_NEXTH_DESTOPTS: - { - s32_t opt_offset; - struct ip6_dest_hdr *dest_hdr; - struct ip6_opt_hdr *opt_hdr; - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Destination options header\n")); - - dest_hdr = (struct ip6_dest_hdr *)p->payload; - - /* Get next header type. */ - nexth = &IP6_DEST_NEXTH(dest_hdr); - - /* Get the header length. */ - hlen = 8 * (1 + dest_hdr->_hlen); - if ((p->len < 8) || (hlen > p->len)) { - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n", - hlen, p->len)); - /* free (drop) packet pbufs */ - pbuf_free(p); - IP6_STATS_INC(ip6.lenerr); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - } - - hlen_tot = (u16_t)(hlen_tot + hlen); - - /* The extended option header starts right after Destination header. */ - opt_offset = IP6_DEST_HLEN; - while (opt_offset < hlen) - { - s32_t opt_dlen = 0; - - opt_hdr = (struct ip6_opt_hdr *)((u8_t *)dest_hdr + opt_offset); - - switch (IP6_OPT_TYPE(opt_hdr)) - { - /* @todo: process IPV6 Destination option data */ - case IP6_PAD1_OPTION: - /* PAD1 option deosn't have length and value field */ - opt_dlen = -1; - break; - case IP6_PADN_OPTION: - opt_dlen = IP6_OPT_DLEN(opt_hdr); - break; - case IP6_ROUTER_ALERT_OPTION: - opt_dlen = IP6_OPT_DLEN(opt_hdr); - break; - case IP6_JUMBO_OPTION: - opt_dlen = IP6_OPT_DLEN(opt_hdr); - break; - case IP6_HOME_ADDRESS_OPTION: - opt_dlen = IP6_OPT_DLEN(opt_hdr); - break; - default: - /* Check 2 MSB of Destination header type. */ - switch (IP6_OPT_TYPE_ACTION(opt_hdr)) - { - case 1: - /* Discard the packet. */ - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid destination option type dropped.\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - case 2: - /* Send ICMP Parameter Problem */ - icmp6_param_problem(p, ICMP6_PP_OPTION, opt_hdr); - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid destination option type dropped.\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - case 3: - /* Send ICMP Parameter Problem if destination address is not a multicast address */ - if (!ip6_addr_ismulticast(ip6_current_dest_addr())) { - icmp6_param_problem(p, ICMP6_PP_OPTION, opt_hdr); - } - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid destination option type dropped.\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - default: - /* Skip over this option. */ - opt_dlen = IP6_OPT_DLEN(opt_hdr); - break; - } - break; - } - - /* Adjust the offset to move to the next extended option header */ - opt_offset = opt_offset + IP6_OPT_HLEN + opt_dlen; - } - - pbuf_remove_header(p, hlen); - break; - } - case IP6_NEXTH_ROUTING: - { - struct ip6_rout_hdr *rout_hdr; - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Routing header\n")); - - rout_hdr = (struct ip6_rout_hdr *)p->payload; - - /* Get next header type. */ - nexth = &IP6_ROUT_NEXTH(rout_hdr); - - /* Get the header length. */ - hlen = 8 * (1 + rout_hdr->_hlen); - - if ((p->len < 8) || (hlen > p->len)) { - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n", - hlen, p->len)); - /* free (drop) packet pbufs */ - pbuf_free(p); - IP6_STATS_INC(ip6.lenerr); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - } - - /* Skip over this header. */ - hlen_tot = (u16_t)(hlen_tot + hlen); - - /* if segment left value is 0 in routing header, ignore the option */ - if (IP6_ROUT_SEG_LEFT(rout_hdr)) { - /* The length field of routing option header must be even */ - if (rout_hdr->_hlen & 0x1) { - /* Discard and send parameter field error */ - icmp6_param_problem(p, ICMP6_PP_FIELD, &rout_hdr->_hlen); - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid routing type dropped\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - } - - switch (IP6_ROUT_TYPE(rout_hdr)) - { - /* TODO: process routing by the type */ - case IP6_ROUT_TYPE2: - break; - case IP6_ROUT_RPL: - break; - default: - /* Discard unrecognized routing type and send parameter field error */ - icmp6_param_problem(p, ICMP6_PP_FIELD, &IP6_ROUT_TYPE(rout_hdr)); - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid routing type dropped\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - } - } - - pbuf_remove_header(p, hlen); - break; - } - case IP6_NEXTH_FRAGMENT: - { - struct ip6_frag_hdr *frag_hdr; - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Fragment header\n")); - - frag_hdr = (struct ip6_frag_hdr *)p->payload; - - /* Get next header type. */ - nexth = &IP6_FRAG_NEXTH(frag_hdr); - - /* Fragment Header length. */ - hlen = 8; - - /* Make sure this header fits in current pbuf. */ - if (hlen > p->len) { - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("IPv6 options header (hlen %"U16_F") does not fit in first pbuf (len %"U16_F"), IPv6 packet dropped.\n", - hlen, p->len)); - /* free (drop) packet pbufs */ - pbuf_free(p); - IP6_FRAG_STATS_INC(ip6_frag.lenerr); - IP6_FRAG_STATS_INC(ip6_frag.drop); - goto ip6_input_cleanup; - } - - hlen_tot = (u16_t)(hlen_tot + hlen); - - /* check payload length is multiple of 8 octets when mbit is set */ - if (IP6_FRAG_MBIT(frag_hdr) && (IP6H_PLEN(ip6hdr) & 0x7)) { - /* ipv6 payload length is not multiple of 8 octets */ - icmp6_param_problem(p, ICMP6_PP_FIELD, LWIP_PACKED_CAST(const void *, &ip6hdr->_plen)); - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with invalid payload length dropped\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - } - - /* Offset == 0 and more_fragments == 0? */ - if ((frag_hdr->_fragment_offset & - PP_HTONS(IP6_FRAG_OFFSET_MASK | IP6_FRAG_MORE_FLAG)) == 0) { - /* This is a 1-fragment packet. Skip this header and continue. */ - pbuf_remove_header(p, hlen); - } else { -#if LWIP_IPV6_REASS - /* reassemble the packet */ - ip_data.current_ip_header_tot_len = hlen_tot; - p = ip6_reass(p); - /* packet not fully reassembled yet? */ - if (p == NULL) { - goto ip6_input_cleanup; - } - - /* Returned p point to IPv6 header. - * Update all our variables and pointers and continue. */ - ip6hdr = (struct ip6_hdr *)p->payload; - nexth = &IP6H_NEXTH(ip6hdr); - hlen = hlen_tot = IP6_HLEN; - pbuf_remove_header(p, IP6_HLEN); - -#else /* LWIP_IPV6_REASS */ - /* free (drop) packet pbufs */ - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Fragment header dropped (with LWIP_IPV6_REASS==0)\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.opterr); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; -#endif /* LWIP_IPV6_REASS */ - } - break; - } - default: - goto options_done; - } - - if (*nexth == IP6_NEXTH_HOPBYHOP) { - /* Hop-by-Hop header comes only as a first option */ - icmp6_param_problem(p, ICMP6_PP_HEADER, nexth); - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: packet with Hop-by-Hop options header dropped (only valid as a first option)\n")); - pbuf_free(p); - IP6_STATS_INC(ip6.drop); - goto ip6_input_cleanup; - } - } - -options_done: - - /* send to upper layers */ - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: \n")); - ip6_debug_print(p); - LWIP_DEBUGF(IP6_DEBUG, ("ip6_input: p->len %"U16_F" p->tot_len %"U16_F"\n", p->len, p->tot_len)); - - ip_data.current_ip_header_tot_len = hlen_tot; - -#if LWIP_RAW - /* p points to IPv6 header again for raw_input. */ - pbuf_add_header_force(p, hlen_tot); - /* raw input did not eat the packet? */ - raw_status = raw_input(p, inp); - if (raw_status != RAW_INPUT_EATEN) - { - /* Point to payload. */ - pbuf_remove_header(p, hlen_tot); -#else /* LWIP_RAW */ - { -#endif /* LWIP_RAW */ - switch (*nexth) { - case IP6_NEXTH_NONE: - pbuf_free(p); - break; -#if LWIP_UDP - case IP6_NEXTH_UDP: -#if LWIP_UDPLITE - case IP6_NEXTH_UDPLITE: -#endif /* LWIP_UDPLITE */ - udp_input(p, inp); - break; -#endif /* LWIP_UDP */ -#if LWIP_TCP - case IP6_NEXTH_TCP: - tcp_input(p, inp); - break; -#endif /* LWIP_TCP */ -#if LWIP_ICMP6 - case IP6_NEXTH_ICMP6: - icmp6_input(p, inp); - break; -#endif /* LWIP_ICMP */ - default: -#if LWIP_RAW - if (raw_status == RAW_INPUT_DELIVERED) { - /* @todo: ipv6 mib in-delivers? */ - } else -#endif /* LWIP_RAW */ - { -#if LWIP_ICMP6 - /* p points to IPv6 header again for raw_input. */ - pbuf_add_header_force(p, hlen_tot); - /* send ICMP parameter problem unless it was a multicast or ICMPv6 */ - if ((!ip6_addr_ismulticast(ip6_current_dest_addr())) && - (IP6H_NEXTH(ip6hdr) != IP6_NEXTH_ICMP6)) { - icmp6_param_problem(p, ICMP6_PP_HEADER, nexth); - } -#endif /* LWIP_ICMP */ - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip6_input: Unsupported transport protocol %"U16_F"\n", (u16_t)IP6H_NEXTH(ip6hdr))); - IP6_STATS_INC(ip6.proterr); - IP6_STATS_INC(ip6.drop); - } - pbuf_free(p); - break; - } - } - -ip6_input_cleanup: - ip_data.current_netif = NULL; - ip_data.current_input_netif = NULL; - ip_data.current_ip6_header = NULL; - ip_data.current_ip_header_tot_len = 0; - ip6_addr_set_zero(ip6_current_src_addr()); - ip6_addr_set_zero(ip6_current_dest_addr()); - - return ERR_OK; -} - - -/** - * Sends an IPv6 packet on a network interface. This function constructs - * the IPv6 header. If the source IPv6 address is NULL, the IPv6 "ANY" address is - * used as source (usually during network startup). If the source IPv6 address it - * IP6_ADDR_ANY, the most appropriate IPv6 address of the outgoing network - * interface is filled in as source address. If the destination IPv6 address is - * LWIP_IP_HDRINCL, p is assumed to already include an IPv6 header and - * p->payload points to it instead of the data. - * - * @param p the packet to send (p->payload points to the data, e.g. next - protocol header; if dest == LWIP_IP_HDRINCL, p already includes an - IPv6 header and p->payload points to that IPv6 header) - * @param src the source IPv6 address to send from (if src == IP6_ADDR_ANY, an - * IP address of the netif is selected and used as source address. - * if src == NULL, IP6_ADDR_ANY is used as source) (src is possibly not - * properly zoned) - * @param dest the destination IPv6 address to send the packet to (possibly not - * properly zoned) - * @param hl the Hop Limit value to be set in the IPv6 header - * @param tc the Traffic Class value to be set in the IPv6 header - * @param nexth the Next Header to be set in the IPv6 header - * @param netif the netif on which to send this packet - * @return ERR_OK if the packet was sent OK - * ERR_BUF if p doesn't have enough space for IPv6/LINK headers - * returns errors returned by netif->output_ip6 - */ -err_t -ip6_output_if(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, - u8_t hl, u8_t tc, - u8_t nexth, struct netif *netif) -{ - const ip6_addr_t *src_used = src; - if (dest != LWIP_IP_HDRINCL) { - if (src != NULL && ip6_addr_isany(src)) { - src_used = ip_2_ip6(ip6_select_source_address(netif, dest)); - if ((src_used == NULL) || ip6_addr_isany(src_used)) { - /* No appropriate source address was found for this packet. */ - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip6_output: No suitable source address for packet.\n")); - IP6_STATS_INC(ip6.rterr); - return ERR_RTE; - } - } - } - return ip6_output_if_src(p, src_used, dest, hl, tc, nexth, netif); -} - -/** - * Same as ip6_output_if() but 'src' address is not replaced by netif address - * when it is 'any'. - */ -err_t -ip6_output_if_src(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, - u8_t hl, u8_t tc, - u8_t nexth, struct netif *netif) -{ - struct ip6_hdr *ip6hdr; - ip6_addr_t dest_addr; - - LWIP_ASSERT_CORE_LOCKED(); - LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); - - /* Should the IPv6 header be generated or is it already included in p? */ - if (dest != LWIP_IP_HDRINCL) { -#if LWIP_IPV6_SCOPES - /* If the destination address is scoped but lacks a zone, add a zone now, - * based on the outgoing interface. The lower layers (e.g., nd6) absolutely - * require addresses to be properly zoned for correctness. In some cases, - * earlier attempts will have been made to add a zone to the destination, - * but this function is the only one that is called in all (other) cases, - * so we must do this here. */ - if (ip6_addr_lacks_zone(dest, IP6_UNKNOWN)) { - ip6_addr_copy(dest_addr, *dest); - ip6_addr_assign_zone(&dest_addr, IP6_UNKNOWN, netif); - dest = &dest_addr; - } -#endif /* LWIP_IPV6_SCOPES */ - - /* generate IPv6 header */ - if (pbuf_add_header(p, IP6_HLEN)) { - LWIP_DEBUGF(IP6_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("ip6_output: not enough room for IPv6 header in pbuf\n")); - IP6_STATS_INC(ip6.err); - return ERR_BUF; - } - - ip6hdr = (struct ip6_hdr *)p->payload; - LWIP_ASSERT("check that first pbuf can hold struct ip6_hdr", - (p->len >= sizeof(struct ip6_hdr))); - - IP6H_HOPLIM_SET(ip6hdr, hl); - IP6H_NEXTH_SET(ip6hdr, nexth); - - /* dest cannot be NULL here */ - ip6_addr_copy_to_packed(ip6hdr->dest, *dest); - - IP6H_VTCFL_SET(ip6hdr, 6, tc, 0); - IP6H_PLEN_SET(ip6hdr, (u16_t)(p->tot_len - IP6_HLEN)); - - if (src == NULL) { - src = IP6_ADDR_ANY6; - } - /* src cannot be NULL here */ - ip6_addr_copy_to_packed(ip6hdr->src, *src); - - } else { - /* IP header already included in p */ - ip6hdr = (struct ip6_hdr *)p->payload; - ip6_addr_copy_from_packed(dest_addr, ip6hdr->dest); - ip6_addr_assign_zone(&dest_addr, IP6_UNKNOWN, netif); - dest = &dest_addr; - } - - IP6_STATS_INC(ip6.xmit); - - LWIP_DEBUGF(IP6_DEBUG, ("ip6_output_if: %c%c%"U16_F"\n", netif->name[0], netif->name[1], (u16_t)netif->num)); - ip6_debug_print(p); - -#if ENABLE_LOOPBACK - { - int i; -#if !LWIP_HAVE_LOOPIF - if (ip6_addr_isloopback(dest)) { - return netif_loop_output(netif, p); - } -#endif /* !LWIP_HAVE_LOOPIF */ - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && - ip6_addr_cmp(dest, netif_ip6_addr(netif, i))) { - /* Packet to self, enqueue it for loopback */ - LWIP_DEBUGF(IP6_DEBUG, ("netif_loop_output()\n")); - return netif_loop_output(netif, p); - } - } - } -#if LWIP_MULTICAST_TX_OPTIONS - if ((p->flags & PBUF_FLAG_MCASTLOOP) != 0) { - netif_loop_output(netif, p); - } -#endif /* LWIP_MULTICAST_TX_OPTIONS */ -#endif /* ENABLE_LOOPBACK */ -#if LWIP_IPV6_FRAG - /* don't fragment if interface has mtu set to 0 [loopif] */ - if (netif_mtu6(netif) && (p->tot_len > nd6_get_destination_mtu(dest, netif))) { - return ip6_frag(p, netif, dest); - } -#endif /* LWIP_IPV6_FRAG */ - - LWIP_DEBUGF(IP6_DEBUG, ("netif->output_ip6()\n")); - return netif->output_ip6(netif, p, dest); -} - -/** - * Simple interface to ip6_output_if. It finds the outgoing network - * interface and calls upon ip6_output_if to do the actual work. - * - * @param p the packet to send (p->payload points to the data, e.g. next - protocol header; if dest == LWIP_IP_HDRINCL, p already includes an - IPv6 header and p->payload points to that IPv6 header) - * @param src the source IPv6 address to send from (if src == IP6_ADDR_ANY, an - * IP address of the netif is selected and used as source address. - * if src == NULL, IP6_ADDR_ANY is used as source) - * @param dest the destination IPv6 address to send the packet to - * @param hl the Hop Limit value to be set in the IPv6 header - * @param tc the Traffic Class value to be set in the IPv6 header - * @param nexth the Next Header to be set in the IPv6 header - * - * @return ERR_RTE if no route is found - * see ip_output_if() for more return values - */ -err_t -ip6_output(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, - u8_t hl, u8_t tc, u8_t nexth) -{ - struct netif *netif; - struct ip6_hdr *ip6hdr; - ip6_addr_t src_addr, dest_addr; - - LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); - - if (dest != LWIP_IP_HDRINCL) { - netif = ip6_route(src, dest); - } else { - /* IP header included in p, read addresses. */ - ip6hdr = (struct ip6_hdr *)p->payload; - ip6_addr_copy_from_packed(src_addr, ip6hdr->src); - ip6_addr_copy_from_packed(dest_addr, ip6hdr->dest); - netif = ip6_route(&src_addr, &dest_addr); - } - - if (netif == NULL) { - LWIP_DEBUGF(IP6_DEBUG, ("ip6_output: no route for %"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F"\n", - IP6_ADDR_BLOCK1(dest), - IP6_ADDR_BLOCK2(dest), - IP6_ADDR_BLOCK3(dest), - IP6_ADDR_BLOCK4(dest), - IP6_ADDR_BLOCK5(dest), - IP6_ADDR_BLOCK6(dest), - IP6_ADDR_BLOCK7(dest), - IP6_ADDR_BLOCK8(dest))); - IP6_STATS_INC(ip6.rterr); - return ERR_RTE; - } - - return ip6_output_if(p, src, dest, hl, tc, nexth, netif); -} - - -#if LWIP_NETIF_USE_HINTS -/** Like ip6_output, but takes and addr_hint pointer that is passed on to netif->addr_hint - * before calling ip6_output_if. - * - * @param p the packet to send (p->payload points to the data, e.g. next - protocol header; if dest == LWIP_IP_HDRINCL, p already includes an - IPv6 header and p->payload points to that IPv6 header) - * @param src the source IPv6 address to send from (if src == IP6_ADDR_ANY, an - * IP address of the netif is selected and used as source address. - * if src == NULL, IP6_ADDR_ANY is used as source) - * @param dest the destination IPv6 address to send the packet to - * @param hl the Hop Limit value to be set in the IPv6 header - * @param tc the Traffic Class value to be set in the IPv6 header - * @param nexth the Next Header to be set in the IPv6 header - * @param netif_hint netif output hint pointer set to netif->hint before - * calling ip_output_if() - * - * @return ERR_RTE if no route is found - * see ip_output_if() for more return values - */ -err_t -ip6_output_hinted(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, - u8_t hl, u8_t tc, u8_t nexth, struct netif_hint *netif_hint) -{ - struct netif *netif; - struct ip6_hdr *ip6hdr; - ip6_addr_t src_addr, dest_addr; - err_t err; - - LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p); - - if (dest != LWIP_IP_HDRINCL) { - netif = ip6_route(src, dest); - } else { - /* IP header included in p, read addresses. */ - ip6hdr = (struct ip6_hdr *)p->payload; - ip6_addr_copy_from_packed(src_addr, ip6hdr->src); - ip6_addr_copy_from_packed(dest_addr, ip6hdr->dest); - netif = ip6_route(&src_addr, &dest_addr); - } - - if (netif == NULL) { - LWIP_DEBUGF(IP6_DEBUG, ("ip6_output: no route for %"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F":%"X16_F"\n", - IP6_ADDR_BLOCK1(dest), - IP6_ADDR_BLOCK2(dest), - IP6_ADDR_BLOCK3(dest), - IP6_ADDR_BLOCK4(dest), - IP6_ADDR_BLOCK5(dest), - IP6_ADDR_BLOCK6(dest), - IP6_ADDR_BLOCK7(dest), - IP6_ADDR_BLOCK8(dest))); - IP6_STATS_INC(ip6.rterr); - return ERR_RTE; - } - - NETIF_SET_HINTS(netif, netif_hint); - err = ip6_output_if(p, src, dest, hl, tc, nexth, netif); - NETIF_RESET_HINTS(netif); - - return err; -} -#endif /* LWIP_NETIF_USE_HINTS*/ - -#if LWIP_IPV6_MLD -/** - * Add a hop-by-hop options header with a router alert option and padding. - * - * Used by MLD when sending a Multicast listener report/done message. - * - * @param p the packet to which we will prepend the options header - * @param nexth the next header protocol number (e.g. IP6_NEXTH_ICMP6) - * @param value the value of the router alert option data (e.g. IP6_ROUTER_ALERT_VALUE_MLD) - * @return ERR_OK if hop-by-hop header was added, ERR_* otherwise - */ -err_t -ip6_options_add_hbh_ra(struct pbuf *p, u8_t nexth, u8_t value) -{ - u8_t *opt_data; - u32_t offset = 0; - struct ip6_hbh_hdr *hbh_hdr; - struct ip6_opt_hdr *opt_hdr; - - /* fixed 4 bytes for router alert option and 2 bytes padding */ - const u8_t hlen = (sizeof(struct ip6_opt_hdr) * 2) + IP6_ROUTER_ALERT_DLEN; - /* Move pointer to make room for hop-by-hop options header. */ - if (pbuf_add_header(p, sizeof(struct ip6_hbh_hdr) + hlen)) { - LWIP_DEBUGF(IP6_DEBUG, ("ip6_options: no space for options header\n")); - IP6_STATS_INC(ip6.err); - return ERR_BUF; - } - - /* Set fields of Hop-by-Hop header */ - hbh_hdr = (struct ip6_hbh_hdr *)p->payload; - IP6_HBH_NEXTH(hbh_hdr) = nexth; - hbh_hdr->_hlen = 0; - offset = IP6_HBH_HLEN; - - /* Set router alert options to Hop-by-Hop extended option header */ - opt_hdr = (struct ip6_opt_hdr *)((u8_t *)hbh_hdr + offset); - IP6_OPT_TYPE(opt_hdr) = IP6_ROUTER_ALERT_OPTION; - IP6_OPT_DLEN(opt_hdr) = IP6_ROUTER_ALERT_DLEN; - offset += IP6_OPT_HLEN; - - /* Set router alert option data */ - opt_data = (u8_t *)hbh_hdr + offset; - opt_data[0] = value; - opt_data[1] = 0; - offset += IP6_OPT_DLEN(opt_hdr); - - /* add 2 bytes padding to make 8 bytes Hop-by-Hop header length */ - opt_hdr = (struct ip6_opt_hdr *)((u8_t *)hbh_hdr + offset); - IP6_OPT_TYPE(opt_hdr) = IP6_PADN_OPTION; - IP6_OPT_DLEN(opt_hdr) = 0; - - return ERR_OK; -} -#endif /* LWIP_IPV6_MLD */ - -#if IP6_DEBUG -/* Print an IPv6 header by using LWIP_DEBUGF - * @param p an IPv6 packet, p->payload pointing to the IPv6 header - */ -void -ip6_debug_print(struct pbuf *p) -{ - struct ip6_hdr *ip6hdr = (struct ip6_hdr *)p->payload; - - LWIP_DEBUGF(IP6_DEBUG, ("IPv6 header:\n")); - LWIP_DEBUGF(IP6_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(IP6_DEBUG, ("| %2"U16_F" | %3"U16_F" | %7"U32_F" | (ver, class, flow)\n", - IP6H_V(ip6hdr), - IP6H_TC(ip6hdr), - IP6H_FL(ip6hdr))); - LWIP_DEBUGF(IP6_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(IP6_DEBUG, ("| %5"U16_F" | %3"U16_F" | %3"U16_F" | (plen, nexth, hopl)\n", - IP6H_PLEN(ip6hdr), - IP6H_NEXTH(ip6hdr), - IP6H_HOPLIM(ip6hdr))); - LWIP_DEBUGF(IP6_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(IP6_DEBUG, ("| %4"X32_F" | %4"X32_F" | %4"X32_F" | %4"X32_F" | (src)\n", - IP6_ADDR_BLOCK1(&(ip6hdr->src)), - IP6_ADDR_BLOCK2(&(ip6hdr->src)), - IP6_ADDR_BLOCK3(&(ip6hdr->src)), - IP6_ADDR_BLOCK4(&(ip6hdr->src)))); - LWIP_DEBUGF(IP6_DEBUG, ("| %4"X32_F" | %4"X32_F" | %4"X32_F" | %4"X32_F" |\n", - IP6_ADDR_BLOCK5(&(ip6hdr->src)), - IP6_ADDR_BLOCK6(&(ip6hdr->src)), - IP6_ADDR_BLOCK7(&(ip6hdr->src)), - IP6_ADDR_BLOCK8(&(ip6hdr->src)))); - LWIP_DEBUGF(IP6_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(IP6_DEBUG, ("| %4"X32_F" | %4"X32_F" | %4"X32_F" | %4"X32_F" | (dest)\n", - IP6_ADDR_BLOCK1(&(ip6hdr->dest)), - IP6_ADDR_BLOCK2(&(ip6hdr->dest)), - IP6_ADDR_BLOCK3(&(ip6hdr->dest)), - IP6_ADDR_BLOCK4(&(ip6hdr->dest)))); - LWIP_DEBUGF(IP6_DEBUG, ("| %4"X32_F" | %4"X32_F" | %4"X32_F" | %4"X32_F" |\n", - IP6_ADDR_BLOCK5(&(ip6hdr->dest)), - IP6_ADDR_BLOCK6(&(ip6hdr->dest)), - IP6_ADDR_BLOCK7(&(ip6hdr->dest)), - IP6_ADDR_BLOCK8(&(ip6hdr->dest)))); - LWIP_DEBUGF(IP6_DEBUG, ("+-------------------------------+\n")); -} -#endif /* IP6_DEBUG */ - -#endif /* LWIP_IPV6 */ diff --git a/core/c/core/ipv6/ip6_addr.c b/core/c/core/ipv6/ip6_addr.c deleted file mode 100755 index aafba72..0000000 --- a/core/c/core/ipv6/ip6_addr.c +++ /dev/null @@ -1,343 +0,0 @@ -/** - * @file - * - * IPv6 addresses. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * Functions for handling IPv6 addresses. - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/ip_addr.h" -#include "lwip/def.h" - -#include - -#if LWIP_IPV4 -#include "lwip/ip4_addr.h" /* for ip6addr_aton to handle IPv4-mapped addresses */ -#endif /* LWIP_IPV4 */ - -/* used by IP6_ADDR_ANY(6) in ip6_addr.h */ -const ip_addr_t ip6_addr_any = IPADDR6_INIT(0ul, 0ul, 0ul, 0ul); - -#define lwip_xchar(i) ((char)((i) < 10 ? '0' + (i) : 'A' + (i) - 10)) - -/** - * Check whether "cp" is a valid ascii representation - * of an IPv6 address and convert to a binary address. - * Returns 1 if the address is valid, 0 if not. - * - * @param cp IPv6 address in ascii representation (e.g. "FF01::1") - * @param addr pointer to which to save the ip address in network order - * @return 1 if cp could be converted to addr, 0 on failure - */ -int -ip6addr_aton(const char *cp, ip6_addr_t *addr) -{ - u32_t addr_index, zero_blocks, current_block_index, current_block_value; - const char *s; -#if LWIP_IPV4 - int check_ipv4_mapped = 0; -#endif /* LWIP_IPV4 */ - - /* Count the number of colons, to count the number of blocks in a "::" sequence - zero_blocks may be 1 even if there are no :: sequences */ - zero_blocks = 8; - for (s = cp; *s != 0; s++) { - if (*s == ':') { - zero_blocks--; -#if LWIP_IPV4 - } else if (*s == '.') { - if ((zero_blocks == 5) ||(zero_blocks == 2)) { - check_ipv4_mapped = 1; - /* last block could be the start of an IPv4 address */ - zero_blocks--; - } else { - /* invalid format */ - return 0; - } - break; -#endif /* LWIP_IPV4 */ - } else if (!lwip_isxdigit(*s)) { - break; - } - } - - /* parse each block */ - addr_index = 0; - current_block_index = 0; - current_block_value = 0; - for (s = cp; *s != 0; s++) { - if (*s == ':') { - if (addr) { - if (current_block_index & 0x1) { - addr->addr[addr_index++] |= current_block_value; - } - else { - addr->addr[addr_index] = current_block_value << 16; - } - } - current_block_index++; -#if LWIP_IPV4 - if (check_ipv4_mapped) { - if (current_block_index == 6) { - ip4_addr_t ip4; - int ret = ip4addr_aton(s + 1, &ip4); - if (ret) { - if (addr) { - addr->addr[3] = lwip_htonl(ip4.addr); - current_block_index++; - goto fix_byte_order_and_return; - } - return 1; - } - } - } -#endif /* LWIP_IPV4 */ - current_block_value = 0; - if (current_block_index > 7) { - /* address too long! */ - return 0; - } - if (s[1] == ':') { - if (s[2] == ':') { - /* invalid format: three successive colons */ - return 0; - } - s++; - /* "::" found, set zeros */ - while (zero_blocks > 0) { - zero_blocks--; - if (current_block_index & 0x1) { - addr_index++; - } else { - if (addr) { - addr->addr[addr_index] = 0; - } - } - current_block_index++; - if (current_block_index > 7) { - /* address too long! */ - return 0; - } - } - } - } else if (lwip_isxdigit(*s)) { - /* add current digit */ - current_block_value = (current_block_value << 4) + - (lwip_isdigit(*s) ? (u32_t)(*s - '0') : - (u32_t)(10 + (lwip_islower(*s) ? *s - 'a' : *s - 'A'))); - } else { - /* unexpected digit, space? CRLF? */ - break; - } - } - - if (addr) { - if (current_block_index & 0x1) { - addr->addr[addr_index++] |= current_block_value; - } - else { - addr->addr[addr_index] = current_block_value << 16; - } -#if LWIP_IPV4 -fix_byte_order_and_return: -#endif - /* convert to network byte order. */ - for (addr_index = 0; addr_index < 4; addr_index++) { - addr->addr[addr_index] = lwip_htonl(addr->addr[addr_index]); - } - - ip6_addr_clear_zone(addr); - } - - if (current_block_index != 7) { - return 0; - } - - return 1; -} - -/** - * Convert numeric IPv6 address into ASCII representation. - * returns ptr to static buffer; not reentrant! - * - * @param addr ip6 address in network order to convert - * @return pointer to a global static (!) buffer that holds the ASCII - * representation of addr - */ -char * -ip6addr_ntoa(const ip6_addr_t *addr) -{ - static char str[40]; - return ip6addr_ntoa_r(addr, str, 40); -} - -/** - * Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used. - * - * @param addr ip6 address in network order to convert - * @param buf target buffer where the string is stored - * @param buflen length of buf - * @return either pointer to buf which now holds the ASCII - * representation of addr or NULL if buf was too small - */ -char * -ip6addr_ntoa_r(const ip6_addr_t *addr, char *buf, int buflen) -{ - u32_t current_block_index, current_block_value, next_block_value; - s32_t i; - u8_t zero_flag, empty_block_flag; - -#if LWIP_IPV4 - if (ip6_addr_isipv4mappedipv6(addr)) { - /* This is an IPv4 mapped address */ - ip4_addr_t addr4; - char *ret; -#define IP4MAPPED_HEADER "::FFFF:" - char *buf_ip4 = buf + sizeof(IP4MAPPED_HEADER) - 1; - int buflen_ip4 = buflen - sizeof(IP4MAPPED_HEADER) + 1; - if (buflen < (int)sizeof(IP4MAPPED_HEADER)) { - return NULL; - } - memcpy(buf, IP4MAPPED_HEADER, sizeof(IP4MAPPED_HEADER)); - addr4.addr = addr->addr[3]; - ret = ip4addr_ntoa_r(&addr4, buf_ip4, buflen_ip4); - if (ret != buf_ip4) { - return NULL; - } - return buf; - } -#endif /* LWIP_IPV4 */ - i = 0; - empty_block_flag = 0; /* used to indicate a zero chain for "::' */ - - for (current_block_index = 0; current_block_index < 8; current_block_index++) { - /* get the current 16-bit block */ - current_block_value = lwip_htonl(addr->addr[current_block_index >> 1]); - if ((current_block_index & 0x1) == 0) { - current_block_value = current_block_value >> 16; - } - current_block_value &= 0xffff; - - /* Check for empty block. */ - if (current_block_value == 0) { - if (current_block_index == 7 && empty_block_flag == 1) { - /* special case, we must render a ':' for the last block. */ - buf[i++] = ':'; - if (i >= buflen) { - return NULL; - } - break; - } - if (empty_block_flag == 0) { - /* generate empty block "::", but only if more than one contiguous zero block, - * according to current formatting suggestions RFC 5952. */ - next_block_value = lwip_htonl(addr->addr[(current_block_index + 1) >> 1]); - if ((current_block_index & 0x1) == 0x01) { - next_block_value = next_block_value >> 16; - } - next_block_value &= 0xffff; - if (next_block_value == 0) { - empty_block_flag = 1; - buf[i++] = ':'; - if (i >= buflen) { - return NULL; - } - continue; /* move on to next block. */ - } - } else if (empty_block_flag == 1) { - /* move on to next block. */ - continue; - } - } else if (empty_block_flag == 1) { - /* Set this flag value so we don't produce multiple empty blocks. */ - empty_block_flag = 2; - } - - if (current_block_index > 0) { - buf[i++] = ':'; - if (i >= buflen) { - return NULL; - } - } - - if ((current_block_value & 0xf000) == 0) { - zero_flag = 1; - } else { - buf[i++] = lwip_xchar(((current_block_value & 0xf000) >> 12)); - zero_flag = 0; - if (i >= buflen) { - return NULL; - } - } - - if (((current_block_value & 0xf00) == 0) && (zero_flag)) { - /* do nothing */ - } else { - buf[i++] = lwip_xchar(((current_block_value & 0xf00) >> 8)); - zero_flag = 0; - if (i >= buflen) { - return NULL; - } - } - - if (((current_block_value & 0xf0) == 0) && (zero_flag)) { - /* do nothing */ - } - else { - buf[i++] = lwip_xchar(((current_block_value & 0xf0) >> 4)); - zero_flag = 0; - if (i >= buflen) { - return NULL; - } - } - - buf[i++] = lwip_xchar((current_block_value & 0xf)); - if (i >= buflen) { - return NULL; - } - } - - buf[i] = 0; - - return buf; -} - -#endif /* LWIP_IPV6 */ diff --git a/core/c/core/ipv6/ip6_frag.c b/core/c/core/ipv6/ip6_frag.c deleted file mode 100755 index 0f277b6..0000000 --- a/core/c/core/ipv6/ip6_frag.c +++ /dev/null @@ -1,862 +0,0 @@ -/** - * @file - * - * IPv6 fragmentation and reassembly. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#include "lwip/opt.h" -#include "lwip/ip6_frag.h" -#include "lwip/ip6.h" -#include "lwip/icmp6.h" -#include "lwip/nd6.h" -#include "lwip/ip.h" - -#include "lwip/pbuf.h" -#include "lwip/memp.h" -#include "lwip/stats.h" - -#include - -#if LWIP_IPV6 && LWIP_IPV6_REASS /* don't build if not configured for use in lwipopts.h */ - - -/** Setting this to 0, you can turn off checking the fragments for overlapping - * regions. The code gets a little smaller. Only use this if you know that - * overlapping won't occur on your network! */ -#ifndef IP_REASS_CHECK_OVERLAP -#define IP_REASS_CHECK_OVERLAP 1 -#endif /* IP_REASS_CHECK_OVERLAP */ - -/** Set to 0 to prevent freeing the oldest datagram when the reassembly buffer is - * full (IP_REASS_MAX_PBUFS pbufs are enqueued). The code gets a little smaller. - * Datagrams will be freed by timeout only. Especially useful when MEMP_NUM_REASSDATA - * is set to 1, so one datagram can be reassembled at a time, only. */ -#ifndef IP_REASS_FREE_OLDEST -#define IP_REASS_FREE_OLDEST 1 -#endif /* IP_REASS_FREE_OLDEST */ - -#if IPV6_FRAG_COPYHEADER -/* The number of bytes we need to "borrow" from (i.e., overwrite in) the header - * that precedes the fragment header for reassembly pruposes. */ -#define IPV6_FRAG_REQROOM ((s16_t)(sizeof(struct ip6_reass_helper) - IP6_FRAG_HLEN)) -#endif - -#define IP_REASS_FLAG_LASTFRAG 0x01 - -/** This is a helper struct which holds the starting - * offset and the ending offset of this fragment to - * easily chain the fragments. - * It has the same packing requirements as the IPv6 header, since it replaces - * the Fragment Header in memory in incoming fragments to keep - * track of the various fragments. - */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip6_reass_helper { - PACK_STRUCT_FIELD(struct pbuf *next_pbuf); - PACK_STRUCT_FIELD(u16_t start); - PACK_STRUCT_FIELD(u16_t end); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/* static variables */ -static struct ip6_reassdata *reassdatagrams; -static u16_t ip6_reass_pbufcount; - -/* Forward declarations. */ -static void ip6_reass_free_complete_datagram(struct ip6_reassdata *ipr); -#if IP_REASS_FREE_OLDEST -static void ip6_reass_remove_oldest_datagram(struct ip6_reassdata *ipr, int pbufs_needed); -#endif /* IP_REASS_FREE_OLDEST */ - -void -ip6_reass_tmr(void) -{ - struct ip6_reassdata *r, *tmp; - -#if !IPV6_FRAG_COPYHEADER - LWIP_ASSERT("sizeof(struct ip6_reass_helper) <= IP6_FRAG_HLEN, set IPV6_FRAG_COPYHEADER to 1", - sizeof(struct ip6_reass_helper) <= IP6_FRAG_HLEN); -#endif /* !IPV6_FRAG_COPYHEADER */ - - r = reassdatagrams; - while (r != NULL) { - /* Decrement the timer. Once it reaches 0, - * clean up the incomplete fragment assembly */ - if (r->timer > 0) { - r->timer--; - r = r->next; - } else { - /* reassembly timed out */ - tmp = r; - /* get the next pointer before freeing */ - r = r->next; - /* free the helper struct and all enqueued pbufs */ - ip6_reass_free_complete_datagram(tmp); - } - } -} - -/** - * Free a datagram (struct ip6_reassdata) and all its pbufs. - * Updates the total count of enqueued pbufs (ip6_reass_pbufcount), - * sends an ICMP time exceeded packet. - * - * @param ipr datagram to free - */ -static void -ip6_reass_free_complete_datagram(struct ip6_reassdata *ipr) -{ - struct ip6_reassdata *prev; - u16_t pbufs_freed = 0; - u16_t clen; - struct pbuf *p; - struct ip6_reass_helper *iprh; - -#if LWIP_ICMP6 - iprh = (struct ip6_reass_helper *)ipr->p->payload; - if (iprh->start == 0) { - /* The first fragment was received, send ICMP time exceeded. */ - /* First, de-queue the first pbuf from r->p. */ - p = ipr->p; - ipr->p = iprh->next_pbuf; - /* Restore the part that we've overwritten with our helper structure, or we - * might send garbage (and disclose a pointer) in the ICMPv6 reply. */ - MEMCPY(p->payload, ipr->orig_hdr, sizeof(iprh)); - /* Then, move back to the original ipv6 header (we are now pointing to Fragment header). - This cannot fail since we already checked when receiving this fragment. */ - if (pbuf_header_force(p, (s16_t)((u8_t*)p->payload - (u8_t*)ipr->iphdr))) { - LWIP_ASSERT("ip6_reass_free: moving p->payload to ip6 header failed\n", 0); - } - else { - /* Reconstruct the zoned source and destination addresses, so that we do - * not end up sending the ICMP response over the wrong link. */ - ip6_addr_t src_addr, dest_addr; - ip6_addr_copy_from_packed(src_addr, IPV6_FRAG_SRC(ipr)); - ip6_addr_set_zone(&src_addr, ipr->src_zone); - ip6_addr_copy_from_packed(dest_addr, IPV6_FRAG_DEST(ipr)); - ip6_addr_set_zone(&dest_addr, ipr->dest_zone); - /* Send the actual ICMP response. */ - icmp6_time_exceeded_with_addrs(p, ICMP6_TE_FRAG, &src_addr, &dest_addr); - } - clen = pbuf_clen(p); - LWIP_ASSERT("pbufs_freed + clen <= 0xffff", pbufs_freed + clen <= 0xffff); - pbufs_freed = (u16_t)(pbufs_freed + clen); - pbuf_free(p); - } -#endif /* LWIP_ICMP6 */ - - /* First, free all received pbufs. The individual pbufs need to be released - separately as they have not yet been chained */ - p = ipr->p; - while (p != NULL) { - struct pbuf *pcur; - iprh = (struct ip6_reass_helper *)p->payload; - pcur = p; - /* get the next pointer before freeing */ - p = iprh->next_pbuf; - clen = pbuf_clen(pcur); - LWIP_ASSERT("pbufs_freed + clen <= 0xffff", pbufs_freed + clen <= 0xffff); - pbufs_freed = (u16_t)(pbufs_freed + clen); - pbuf_free(pcur); - } - - /* Then, unchain the struct ip6_reassdata from the list and free it. */ - if (ipr == reassdatagrams) { - reassdatagrams = ipr->next; - } else { - prev = reassdatagrams; - while (prev != NULL) { - if (prev->next == ipr) { - break; - } - prev = prev->next; - } - if (prev != NULL) { - prev->next = ipr->next; - } - } - memp_free(MEMP_IP6_REASSDATA, ipr); - - /* Finally, update number of pbufs in reassembly queue */ - LWIP_ASSERT("ip_reass_pbufcount >= clen", ip6_reass_pbufcount >= pbufs_freed); - ip6_reass_pbufcount = (u16_t)(ip6_reass_pbufcount - pbufs_freed); -} - -#if IP_REASS_FREE_OLDEST -/** - * Free the oldest datagram to make room for enqueueing new fragments. - * The datagram ipr is not freed! - * - * @param ipr ip6_reassdata for the current fragment - * @param pbufs_needed number of pbufs needed to enqueue - * (used for freeing other datagrams if not enough space) - */ -static void -ip6_reass_remove_oldest_datagram(struct ip6_reassdata *ipr, int pbufs_needed) -{ - struct ip6_reassdata *r, *oldest; - - /* Free datagrams until being allowed to enqueue 'pbufs_needed' pbufs, - * but don't free the current datagram! */ - do { - r = oldest = reassdatagrams; - while (r != NULL) { - if (r != ipr) { - if (r->timer <= oldest->timer) { - /* older than the previous oldest */ - oldest = r; - } - } - r = r->next; - } - if (oldest == ipr) { - /* nothing to free, ipr is the only element on the list */ - return; - } - if (oldest != NULL) { - ip6_reass_free_complete_datagram(oldest); - } - } while (((ip6_reass_pbufcount + pbufs_needed) > IP_REASS_MAX_PBUFS) && (reassdatagrams != NULL)); -} -#endif /* IP_REASS_FREE_OLDEST */ - -/** - * Reassembles incoming IPv6 fragments into an IPv6 datagram. - * - * @param p points to the IPv6 Fragment Header - * @return NULL if reassembly is incomplete, pbuf pointing to - * IPv6 Header if reassembly is complete - */ -struct pbuf * -ip6_reass(struct pbuf *p) -{ - struct ip6_reassdata *ipr, *ipr_prev; - struct ip6_reass_helper *iprh, *iprh_tmp, *iprh_prev=NULL; - struct ip6_frag_hdr *frag_hdr; - u16_t offset, len, start, end; - ptrdiff_t hdrdiff; - u16_t clen; - u8_t valid = 1; - struct pbuf *q, *next_pbuf; - - IP6_FRAG_STATS_INC(ip6_frag.recv); - - /* ip6_frag_hdr must be in the first pbuf, not chained. Checked by caller. */ - LWIP_ASSERT("IPv6 fragment header does not fit in first pbuf", - p->len >= sizeof(struct ip6_frag_hdr)); - - frag_hdr = (struct ip6_frag_hdr *) p->payload; - - clen = pbuf_clen(p); - - offset = lwip_ntohs(frag_hdr->_fragment_offset); - - /* Calculate fragment length from IPv6 payload length. - * Adjust for headers before Fragment Header. - * And finally adjust by Fragment Header length. */ - len = lwip_ntohs(ip6_current_header()->_plen); - hdrdiff = (u8_t*)p->payload - (const u8_t*)ip6_current_header(); - LWIP_ASSERT("not a valid pbuf (ip6_input check missing?)", hdrdiff <= 0xFFFF); - LWIP_ASSERT("not a valid pbuf (ip6_input check missing?)", hdrdiff >= IP6_HLEN); - hdrdiff -= IP6_HLEN; - hdrdiff += IP6_FRAG_HLEN; - if (hdrdiff > len) { - IP6_FRAG_STATS_INC(ip6_frag.proterr); - goto nullreturn; - } - len = (u16_t)(len - hdrdiff); - start = (offset & IP6_FRAG_OFFSET_MASK); - if (start > (0xFFFF - len)) { - /* u16_t overflow, cannot handle this */ - IP6_FRAG_STATS_INC(ip6_frag.proterr); - goto nullreturn; - } - - /* Look for the datagram the fragment belongs to in the current datagram queue, - * remembering the previous in the queue for later dequeueing. */ - for (ipr = reassdatagrams, ipr_prev = NULL; ipr != NULL; ipr = ipr->next) { - /* Check if the incoming fragment matches the one currently present - in the reassembly buffer. If so, we proceed with copying the - fragment into the buffer. */ - if ((frag_hdr->_identification == ipr->identification) && - ip6_addr_cmp_packed(ip6_current_src_addr(), &(IPV6_FRAG_SRC(ipr)), ipr->src_zone) && - ip6_addr_cmp_packed(ip6_current_dest_addr(), &(IPV6_FRAG_DEST(ipr)), ipr->dest_zone)) { - IP6_FRAG_STATS_INC(ip6_frag.cachehit); - break; - } - ipr_prev = ipr; - } - - if (ipr == NULL) { - /* Enqueue a new datagram into the datagram queue */ - ipr = (struct ip6_reassdata *)memp_malloc(MEMP_IP6_REASSDATA); - if (ipr == NULL) { -#if IP_REASS_FREE_OLDEST - /* Make room and try again. */ - ip6_reass_remove_oldest_datagram(ipr, clen); - ipr = (struct ip6_reassdata *)memp_malloc(MEMP_IP6_REASSDATA); - if (ipr != NULL) { - /* re-search ipr_prev since it might have been removed */ - for (ipr_prev = reassdatagrams; ipr_prev != NULL; ipr_prev = ipr_prev->next) { - if (ipr_prev->next == ipr) { - break; - } - } - } else -#endif /* IP_REASS_FREE_OLDEST */ - { - IP6_FRAG_STATS_INC(ip6_frag.memerr); - goto nullreturn; - } - } - - memset(ipr, 0, sizeof(struct ip6_reassdata)); - ipr->timer = IPV6_REASS_MAXAGE; - - /* enqueue the new structure to the front of the list */ - ipr->next = reassdatagrams; - reassdatagrams = ipr; - - /* Use the current IPv6 header for src/dest address reference. - * Eventually, we will replace it when we get the first fragment - * (it might be this one, in any case, it is done later). */ - /* need to use the none-const pointer here: */ - ipr->iphdr = ip_data.current_ip6_header; -#if IPV6_FRAG_COPYHEADER - MEMCPY(&ipr->src, &ip6_current_header()->src, sizeof(ipr->src)); - MEMCPY(&ipr->dest, &ip6_current_header()->dest, sizeof(ipr->dest)); -#endif /* IPV6_FRAG_COPYHEADER */ -#if LWIP_IPV6_SCOPES - /* Also store the address zone information. - * @todo It is possible that due to netif destruction and recreation, the - * stored zones end up resolving to a different interface. In that case, we - * risk sending a "time exceeded" ICMP response over the wrong link. - * Ideally, netif destruction would clean up matching pending reassembly - * structures, but custom zone mappings would make that non-trivial. */ - ipr->src_zone = ip6_addr_zone(ip6_current_src_addr()); - ipr->dest_zone = ip6_addr_zone(ip6_current_dest_addr()); -#endif /* LWIP_IPV6_SCOPES */ - /* copy the fragmented packet id. */ - ipr->identification = frag_hdr->_identification; - - /* copy the nexth field */ - ipr->nexth = frag_hdr->_nexth; - } - - /* Check if we are allowed to enqueue more datagrams. */ - if ((ip6_reass_pbufcount + clen) > IP_REASS_MAX_PBUFS) { -#if IP_REASS_FREE_OLDEST - ip6_reass_remove_oldest_datagram(ipr, clen); - if ((ip6_reass_pbufcount + clen) <= IP_REASS_MAX_PBUFS) { - /* re-search ipr_prev since it might have been removed */ - for (ipr_prev = reassdatagrams; ipr_prev != NULL; ipr_prev = ipr_prev->next) { - if (ipr_prev->next == ipr) { - break; - } - } - } else -#endif /* IP_REASS_FREE_OLDEST */ - { - /* @todo: send ICMPv6 time exceeded here? */ - /* drop this pbuf */ - IP6_FRAG_STATS_INC(ip6_frag.memerr); - goto nullreturn; - } - } - - /* Overwrite Fragment Header with our own helper struct. */ -#if IPV6_FRAG_COPYHEADER - if (IPV6_FRAG_REQROOM > 0) { - /* Make room for struct ip6_reass_helper (only required if sizeof(void*) > 4). - This cannot fail since we already checked when receiving this fragment. */ - u8_t hdrerr = pbuf_header_force(p, IPV6_FRAG_REQROOM); - LWIP_UNUSED_ARG(hdrerr); /* in case of LWIP_NOASSERT */ - LWIP_ASSERT("no room for struct ip6_reass_helper", hdrerr == 0); - } -#else /* IPV6_FRAG_COPYHEADER */ - LWIP_ASSERT("sizeof(struct ip6_reass_helper) <= IP6_FRAG_HLEN, set IPV6_FRAG_COPYHEADER to 1", - sizeof(struct ip6_reass_helper) <= IP6_FRAG_HLEN); -#endif /* IPV6_FRAG_COPYHEADER */ - - /* Prepare the pointer to the helper structure, and its initial values. - * Do not yet write to the structure itself, as we still have to make a - * backup of the original data, and we should not do that until we know for - * sure that we are going to add this packet to the list. */ - iprh = (struct ip6_reass_helper *)p->payload; - next_pbuf = NULL; - end = (u16_t)(start + len); - - /* find the right place to insert this pbuf */ - /* Iterate through until we either get to the end of the list (append), - * or we find on with a larger offset (insert). */ - for (q = ipr->p; q != NULL;) { - iprh_tmp = (struct ip6_reass_helper*)q->payload; - if (start < iprh_tmp->start) { -#if IP_REASS_CHECK_OVERLAP - if (end > iprh_tmp->start) { - /* fragment overlaps with following, throw away */ - IP6_FRAG_STATS_INC(ip6_frag.proterr); - goto nullreturn; - } - if (iprh_prev != NULL) { - if (start < iprh_prev->end) { - /* fragment overlaps with previous, throw away */ - IP6_FRAG_STATS_INC(ip6_frag.proterr); - goto nullreturn; - } - } -#endif /* IP_REASS_CHECK_OVERLAP */ - /* the new pbuf should be inserted before this */ - next_pbuf = q; - if (iprh_prev != NULL) { - /* not the fragment with the lowest offset */ - iprh_prev->next_pbuf = p; - } else { - /* fragment with the lowest offset */ - ipr->p = p; - } - break; - } else if (start == iprh_tmp->start) { - /* received the same datagram twice: no need to keep the datagram */ - goto nullreturn; -#if IP_REASS_CHECK_OVERLAP - } else if (start < iprh_tmp->end) { - /* overlap: no need to keep the new datagram */ - IP6_FRAG_STATS_INC(ip6_frag.proterr); - goto nullreturn; -#endif /* IP_REASS_CHECK_OVERLAP */ - } else { - /* Check if the fragments received so far have no gaps. */ - if (iprh_prev != NULL) { - if (iprh_prev->end != iprh_tmp->start) { - /* There is a fragment missing between the current - * and the previous fragment */ - valid = 0; - } - } - } - q = iprh_tmp->next_pbuf; - iprh_prev = iprh_tmp; - } - - /* If q is NULL, then we made it to the end of the list. Determine what to do now */ - if (q == NULL) { - if (iprh_prev != NULL) { - /* this is (for now), the fragment with the highest offset: - * chain it to the last fragment */ -#if IP_REASS_CHECK_OVERLAP - LWIP_ASSERT("check fragments don't overlap", iprh_prev->end <= start); -#endif /* IP_REASS_CHECK_OVERLAP */ - iprh_prev->next_pbuf = p; - if (iprh_prev->end != start) { - valid = 0; - } - } else { -#if IP_REASS_CHECK_OVERLAP - LWIP_ASSERT("no previous fragment, this must be the first fragment!", - ipr->p == NULL); -#endif /* IP_REASS_CHECK_OVERLAP */ - /* this is the first fragment we ever received for this ip datagram */ - ipr->p = p; - } - } - - /* Track the current number of pbufs current 'in-flight', in order to limit - the number of fragments that may be enqueued at any one time */ - ip6_reass_pbufcount = (u16_t)(ip6_reass_pbufcount + clen); - - /* Remember IPv6 header if this is the first fragment. */ - if (start == 0) { - /* need to use the none-const pointer here: */ - ipr->iphdr = ip_data.current_ip6_header; - /* Make a backup of the part of the packet data that we are about to - * overwrite, so that we can restore the original later. */ - MEMCPY(ipr->orig_hdr, p->payload, sizeof(*iprh)); - /* For IPV6_FRAG_COPYHEADER there is no need to copy src/dst again, as they - * will be the same as they were. With LWIP_IPV6_SCOPES, the same applies - * to the source/destination zones. */ - } - /* Only after the backup do we get to fill in the actual helper structure. */ - iprh->next_pbuf = next_pbuf; - iprh->start = start; - iprh->end = end; - - /* If this is the last fragment, calculate total packet length. */ - if ((offset & IP6_FRAG_MORE_FLAG) == 0) { - ipr->datagram_len = iprh->end; - } - - /* Additional validity tests: we have received first and last fragment. */ - iprh_tmp = (struct ip6_reass_helper*)ipr->p->payload; - if (iprh_tmp->start != 0) { - valid = 0; - } - if (ipr->datagram_len == 0) { - valid = 0; - } - - /* Final validity test: no gaps between current and last fragment. */ - iprh_prev = iprh; - q = iprh->next_pbuf; - while ((q != NULL) && valid) { - iprh = (struct ip6_reass_helper*)q->payload; - if (iprh_prev->end != iprh->start) { - valid = 0; - break; - } - iprh_prev = iprh; - q = iprh->next_pbuf; - } - - if (valid) { - /* All fragments have been received */ - struct ip6_hdr* iphdr_ptr; - - /* chain together the pbufs contained within the ip6_reassdata list. */ - iprh = (struct ip6_reass_helper*) ipr->p->payload; - while (iprh != NULL) { - next_pbuf = iprh->next_pbuf; - if (next_pbuf != NULL) { - /* Save next helper struct (will be hidden in next step). */ - iprh_tmp = (struct ip6_reass_helper*)next_pbuf->payload; - - /* hide the fragment header for every succeeding fragment */ - pbuf_remove_header(next_pbuf, IP6_FRAG_HLEN); -#if IPV6_FRAG_COPYHEADER - if (IPV6_FRAG_REQROOM > 0) { - /* hide the extra bytes borrowed from ip6_hdr for struct ip6_reass_helper */ - u8_t hdrerr = pbuf_remove_header(next_pbuf, IPV6_FRAG_REQROOM); - LWIP_UNUSED_ARG(hdrerr); /* in case of LWIP_NOASSERT */ - LWIP_ASSERT("no room for struct ip6_reass_helper", hdrerr == 0); - } -#endif - pbuf_cat(ipr->p, next_pbuf); - } - else { - iprh_tmp = NULL; - } - - iprh = iprh_tmp; - } - - /* Get the first pbuf. */ - p = ipr->p; - -#if IPV6_FRAG_COPYHEADER - if (IPV6_FRAG_REQROOM > 0) { - u8_t hdrerr; - /* Restore (only) the bytes that we overwrote beyond the fragment header. - * Those bytes may belong to either the IPv6 header or an extension - * header placed before the fragment header. */ - MEMCPY(p->payload, ipr->orig_hdr, IPV6_FRAG_REQROOM); - /* get back room for struct ip6_reass_helper (only required if sizeof(void*) > 4) */ - hdrerr = pbuf_remove_header(p, IPV6_FRAG_REQROOM); - LWIP_UNUSED_ARG(hdrerr); /* in case of LWIP_NOASSERT */ - LWIP_ASSERT("no room for struct ip6_reass_helper", hdrerr == 0); - } -#endif - - /* We need to get rid of the fragment header itself, which is somewhere in - * the middle of the packet (but still in the first pbuf of the chain). - * Getting rid of the header is required by RFC 2460 Sec. 4.5 and necessary - * in order to be able to reassemble packets that are close to full size - * (i.e., around 65535 bytes). We simply move up all the headers before the - * fragment header, including the IPv6 header, and adjust the payload start - * accordingly. This works because all these headers are in the first pbuf - * of the chain, and because the caller adjusts all its pointers on - * successful reassembly. */ - MEMMOVE((u8_t*)ipr->iphdr + sizeof(struct ip6_frag_hdr), ipr->iphdr, - (size_t)((u8_t*)p->payload - (u8_t*)ipr->iphdr)); - - /* This is where the IPv6 header is now. */ - iphdr_ptr = (struct ip6_hdr*)((u8_t*)ipr->iphdr + - sizeof(struct ip6_frag_hdr)); - - /* Adjust datagram length by adding header lengths. */ - ipr->datagram_len = (u16_t)(ipr->datagram_len + ((u8_t*)p->payload - (u8_t*)iphdr_ptr) - - IP6_HLEN); - - /* Set payload length in ip header. */ - iphdr_ptr->_plen = lwip_htons(ipr->datagram_len); - - /* With the fragment header gone, we now need to adjust the next-header - * field of whatever header was originally before it. Since the packet made - * it through the original header processing routines at least up to the - * fragment header, we do not need any further sanity checks here. */ - if (IP6H_NEXTH(iphdr_ptr) == IP6_NEXTH_FRAGMENT) { - iphdr_ptr->_nexth = ipr->nexth; - } else { - u8_t *ptr = (u8_t *)iphdr_ptr + IP6_HLEN; - while (*ptr != IP6_NEXTH_FRAGMENT) { - ptr += 8 * (1 + ptr[1]); - } - *ptr = ipr->nexth; - } - - /* release the resources allocated for the fragment queue entry */ - if (reassdatagrams == ipr) { - /* it was the first in the list */ - reassdatagrams = ipr->next; - } else { - /* it wasn't the first, so it must have a valid 'prev' */ - LWIP_ASSERT("sanity check linked list", ipr_prev != NULL); - ipr_prev->next = ipr->next; - } - memp_free(MEMP_IP6_REASSDATA, ipr); - - /* adjust the number of pbufs currently queued for reassembly. */ - clen = pbuf_clen(p); - LWIP_ASSERT("ip6_reass_pbufcount >= clen", ip6_reass_pbufcount >= clen); - ip6_reass_pbufcount = (u16_t)(ip6_reass_pbufcount - clen); - - /* Move pbuf back to IPv6 header. This should never fail. */ - if (pbuf_header_force(p, (s16_t)((u8_t*)p->payload - (u8_t*)iphdr_ptr))) { - LWIP_ASSERT("ip6_reass: moving p->payload to ip6 header failed\n", 0); - pbuf_free(p); - return NULL; - } - - /* Return the pbuf chain */ - return p; - } - /* the datagram is not (yet?) reassembled completely */ - return NULL; - -nullreturn: - IP6_FRAG_STATS_INC(ip6_frag.drop); - pbuf_free(p); - return NULL; -} - -#endif /* LWIP_IPV6 && LWIP_IPV6_REASS */ - -#if LWIP_IPV6 && LWIP_IPV6_FRAG - -#if !LWIP_NETIF_TX_SINGLE_PBUF -/** Allocate a new struct pbuf_custom_ref */ -static struct pbuf_custom_ref* -ip6_frag_alloc_pbuf_custom_ref(void) -{ - return (struct pbuf_custom_ref*)memp_malloc(MEMP_FRAG_PBUF); -} - -/** Free a struct pbuf_custom_ref */ -static void -ip6_frag_free_pbuf_custom_ref(struct pbuf_custom_ref* p) -{ - LWIP_ASSERT("p != NULL", p != NULL); - memp_free(MEMP_FRAG_PBUF, p); -} - -/** Free-callback function to free a 'struct pbuf_custom_ref', called by - * pbuf_free. */ -static void -ip6_frag_free_pbuf_custom(struct pbuf *p) -{ - struct pbuf_custom_ref *pcr = (struct pbuf_custom_ref*)p; - LWIP_ASSERT("pcr != NULL", pcr != NULL); - LWIP_ASSERT("pcr == p", (void*)pcr == (void*)p); - if (pcr->original != NULL) { - pbuf_free(pcr->original); - } - ip6_frag_free_pbuf_custom_ref(pcr); -} -#endif /* !LWIP_NETIF_TX_SINGLE_PBUF */ - -/** - * Fragment an IPv6 datagram if too large for the netif or path MTU. - * - * Chop the datagram in MTU sized chunks and send them in order - * by pointing PBUF_REFs into p - * - * @param p ipv6 packet to send - * @param netif the netif on which to send - * @param dest destination ipv6 address to which to send - * - * @return ERR_OK if sent successfully, err_t otherwise - */ -err_t -ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest) -{ - struct ip6_hdr *original_ip6hdr; - struct ip6_hdr *ip6hdr; - struct ip6_frag_hdr *frag_hdr; - struct pbuf *rambuf; -#if !LWIP_NETIF_TX_SINGLE_PBUF - struct pbuf *newpbuf; - u16_t newpbuflen = 0; - u16_t left_to_copy; -#endif - static u32_t identification; - u16_t left, cop; - const u16_t mtu = nd6_get_destination_mtu(dest, netif); - const u16_t nfb = (u16_t)((mtu - (IP6_HLEN + IP6_FRAG_HLEN)) & IP6_FRAG_OFFSET_MASK); - u16_t fragment_offset = 0; - u16_t last; - u16_t poff = IP6_HLEN; - - identification++; - - original_ip6hdr = (struct ip6_hdr *)p->payload; - - /* @todo we assume there are no options in the unfragmentable part (IPv6 header). */ - LWIP_ASSERT("p->tot_len >= IP6_HLEN", p->tot_len >= IP6_HLEN); - left = (u16_t)(p->tot_len - IP6_HLEN); - - while (left) { - last = (left <= nfb); - - /* Fill this fragment */ - cop = last ? left : nfb; - -#if LWIP_NETIF_TX_SINGLE_PBUF - rambuf = pbuf_alloc(PBUF_IP, cop + IP6_FRAG_HLEN, PBUF_RAM); - if (rambuf == NULL) { - IP6_FRAG_STATS_INC(ip6_frag.memerr); - return ERR_MEM; - } - LWIP_ASSERT("this needs a pbuf in one piece!", - (rambuf->len == rambuf->tot_len) && (rambuf->next == NULL)); - poff += pbuf_copy_partial(p, (u8_t*)rambuf->payload + IP6_FRAG_HLEN, cop, poff); - /* make room for the IP header */ - if (pbuf_add_header(rambuf, IP6_HLEN)) { - pbuf_free(rambuf); - IP6_FRAG_STATS_INC(ip6_frag.memerr); - return ERR_MEM; - } - /* fill in the IP header */ - SMEMCPY(rambuf->payload, original_ip6hdr, IP6_HLEN); - ip6hdr = (struct ip6_hdr *)rambuf->payload; - frag_hdr = (struct ip6_frag_hdr *)((u8_t*)rambuf->payload + IP6_HLEN); -#else - /* When not using a static buffer, create a chain of pbufs. - * The first will be a PBUF_RAM holding the link, IPv6, and Fragment header. - * The rest will be PBUF_REFs mirroring the pbuf chain to be fragged, - * but limited to the size of an mtu. - */ - rambuf = pbuf_alloc(PBUF_LINK, IP6_HLEN + IP6_FRAG_HLEN, PBUF_RAM); - if (rambuf == NULL) { - IP6_FRAG_STATS_INC(ip6_frag.memerr); - return ERR_MEM; - } - LWIP_ASSERT("this needs a pbuf in one piece!", - (p->len >= (IP6_HLEN))); - SMEMCPY(rambuf->payload, original_ip6hdr, IP6_HLEN); - ip6hdr = (struct ip6_hdr *)rambuf->payload; - frag_hdr = (struct ip6_frag_hdr *)((u8_t*)rambuf->payload + IP6_HLEN); - - /* Can just adjust p directly for needed offset. */ - p->payload = (u8_t *)p->payload + poff; - p->len = (u16_t)(p->len - poff); - p->tot_len = (u16_t)(p->tot_len - poff); - - left_to_copy = cop; - while (left_to_copy) { - struct pbuf_custom_ref *pcr; - newpbuflen = (left_to_copy < p->len) ? left_to_copy : p->len; - /* Is this pbuf already empty? */ - if (!newpbuflen) { - p = p->next; - continue; - } - pcr = ip6_frag_alloc_pbuf_custom_ref(); - if (pcr == NULL) { - pbuf_free(rambuf); - IP6_FRAG_STATS_INC(ip6_frag.memerr); - return ERR_MEM; - } - /* Mirror this pbuf, although we might not need all of it. */ - newpbuf = pbuf_alloced_custom(PBUF_RAW, newpbuflen, PBUF_REF, &pcr->pc, p->payload, newpbuflen); - if (newpbuf == NULL) { - ip6_frag_free_pbuf_custom_ref(pcr); - pbuf_free(rambuf); - IP6_FRAG_STATS_INC(ip6_frag.memerr); - return ERR_MEM; - } - pbuf_ref(p); - pcr->original = p; - pcr->pc.custom_free_function = ip6_frag_free_pbuf_custom; - - /* Add it to end of rambuf's chain, but using pbuf_cat, not pbuf_chain - * so that it is removed when pbuf_dechain is later called on rambuf. - */ - pbuf_cat(rambuf, newpbuf); - left_to_copy = (u16_t)(left_to_copy - newpbuflen); - if (left_to_copy) { - p = p->next; - } - } - poff = newpbuflen; -#endif /* LWIP_NETIF_TX_SINGLE_PBUF */ - - /* Set headers */ - frag_hdr->_nexth = original_ip6hdr->_nexth; - frag_hdr->reserved = 0; - frag_hdr->_fragment_offset = lwip_htons((u16_t)((fragment_offset & IP6_FRAG_OFFSET_MASK) | (last ? 0 : IP6_FRAG_MORE_FLAG))); - frag_hdr->_identification = lwip_htonl(identification); - - IP6H_NEXTH_SET(ip6hdr, IP6_NEXTH_FRAGMENT); - IP6H_PLEN_SET(ip6hdr, (u16_t)(cop + IP6_FRAG_HLEN)); - - /* No need for separate header pbuf - we allowed room for it in rambuf - * when allocated. - */ - IP6_FRAG_STATS_INC(ip6_frag.xmit); - netif->output_ip6(netif, rambuf, dest); - - /* Unfortunately we can't reuse rambuf - the hardware may still be - * using the buffer. Instead we free it (and the ensuing chain) and - * recreate it next time round the loop. If we're lucky the hardware - * will have already sent the packet, the free will really free, and - * there will be zero memory penalty. - */ - - pbuf_free(rambuf); - left = (u16_t)(left - cop); - fragment_offset = (u16_t)(fragment_offset + cop); - } - return ERR_OK; -} - -#endif /* LWIP_IPV6 && LWIP_IPV6_FRAG */ diff --git a/core/c/core/ipv6/mld6.c b/core/c/core/ipv6/mld6.c deleted file mode 100755 index db1d09a..0000000 --- a/core/c/core/ipv6/mld6.c +++ /dev/null @@ -1,626 +0,0 @@ -/** - * @file - * Multicast listener discovery - * - * @defgroup mld6 MLD6 - * @ingroup ip6 - * Multicast listener discovery for IPv6. Aims to be compliant with RFC 2710. - * No support for MLDv2.\n - * Note: The allnodes (ff01::1, ff02::1) group is assumed be received by your - * netif since it must always be received for correct IPv6 operation (e.g. SLAAC). - * Ensure the netif filters are configured accordingly!\n - * The netif flags also need NETIF_FLAG_MLD6 flag set to enable MLD6 on a - * netif ("netif->flags |= NETIF_FLAG_MLD6;").\n - * To be called from TCPIP thread. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -/* Based on igmp.c implementation of igmp v2 protocol */ - -#include "lwip/opt.h" - -#if LWIP_IPV6 && LWIP_IPV6_MLD /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/mld6.h" -#include "lwip/prot/mld6.h" -#include "lwip/icmp6.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#include "lwip/ip.h" -#include "lwip/inet_chksum.h" -#include "lwip/pbuf.h" -#include "lwip/netif.h" -#include "lwip/memp.h" -#include "lwip/stats.h" - -#include - - -/* - * MLD constants - */ -#define MLD6_HL 1 -#define MLD6_JOIN_DELAYING_MEMBER_TMR_MS (500) - -#define MLD6_GROUP_NON_MEMBER 0 -#define MLD6_GROUP_DELAYING_MEMBER 1 -#define MLD6_GROUP_IDLE_MEMBER 2 - -/* Forward declarations. */ -static struct mld_group *mld6_new_group(struct netif *ifp, const ip6_addr_t *addr); -static err_t mld6_remove_group(struct netif *netif, struct mld_group *group); -static void mld6_delayed_report(struct mld_group *group, u16_t maxresp); -static void mld6_send(struct netif *netif, struct mld_group *group, u8_t type); - - -/** - * Stop MLD processing on interface - * - * @param netif network interface on which stop MLD processing - */ -err_t -mld6_stop(struct netif *netif) -{ - struct mld_group *group = netif_mld6_data(netif); - - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6, NULL); - - while (group != NULL) { - struct mld_group *next = group->next; /* avoid use-after-free below */ - - /* disable the group at the MAC level */ - if (netif->mld_mac_filter != NULL) { - netif->mld_mac_filter(netif, &(group->group_address), NETIF_DEL_MAC_FILTER); - } - - /* free group */ - memp_free(MEMP_MLD6_GROUP, group); - - /* move to "next" */ - group = next; - } - return ERR_OK; -} - -/** - * Report MLD memberships for this interface - * - * @param netif network interface on which report MLD memberships - */ -void -mld6_report_groups(struct netif *netif) -{ - struct mld_group *group = netif_mld6_data(netif); - - while (group != NULL) { - mld6_delayed_report(group, MLD6_JOIN_DELAYING_MEMBER_TMR_MS); - group = group->next; - } -} - -/** - * Search for a group that is joined on a netif - * - * @param ifp the network interface for which to look - * @param addr the group ipv6 address to search for - * @return a struct mld_group* if the group has been found, - * NULL if the group wasn't found. - */ -struct mld_group * -mld6_lookfor_group(struct netif *ifp, const ip6_addr_t *addr) -{ - struct mld_group *group = netif_mld6_data(ifp); - - while (group != NULL) { - if (ip6_addr_cmp(&(group->group_address), addr)) { - return group; - } - group = group->next; - } - - return NULL; -} - - -/** - * create a new group - * - * @param ifp the network interface for which to create - * @param addr the new group ipv6 - * @return a struct mld_group*, - * NULL on memory error. - */ -static struct mld_group * -mld6_new_group(struct netif *ifp, const ip6_addr_t *addr) -{ - struct mld_group *group; - - group = (struct mld_group *)memp_malloc(MEMP_MLD6_GROUP); - if (group != NULL) { - ip6_addr_set(&(group->group_address), addr); - group->timer = 0; /* Not running */ - group->group_state = MLD6_GROUP_IDLE_MEMBER; - group->last_reporter_flag = 0; - group->use = 0; - group->next = netif_mld6_data(ifp); - - netif_set_client_data(ifp, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6, group); - } - - return group; -} - -/** - * Remove a group from the mld_group_list, but do not free it yet - * - * @param group the group to remove - * @return ERR_OK if group was removed from the list, an err_t otherwise - */ -static err_t -mld6_remove_group(struct netif *netif, struct mld_group *group) -{ - err_t err = ERR_OK; - - /* Is it the first group? */ - if (netif_mld6_data(netif) == group) { - netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6, group->next); - } else { - /* look for group further down the list */ - struct mld_group *tmpGroup; - for (tmpGroup = netif_mld6_data(netif); tmpGroup != NULL; tmpGroup = tmpGroup->next) { - if (tmpGroup->next == group) { - tmpGroup->next = group->next; - break; - } - } - /* Group not find group */ - if (tmpGroup == NULL) { - err = ERR_ARG; - } - } - - return err; -} - - -/** - * Process an input MLD message. Called by icmp6_input. - * - * @param p the mld packet, p->payload pointing to the icmpv6 header - * @param inp the netif on which this packet was received - */ -void -mld6_input(struct pbuf *p, struct netif *inp) -{ - struct mld_header *mld_hdr; - struct mld_group *group; - - MLD6_STATS_INC(mld6.recv); - - /* Check that mld header fits in packet. */ - if (p->len < sizeof(struct mld_header)) { - /* @todo debug message */ - pbuf_free(p); - MLD6_STATS_INC(mld6.lenerr); - MLD6_STATS_INC(mld6.drop); - return; - } - - mld_hdr = (struct mld_header *)p->payload; - - switch (mld_hdr->type) { - case ICMP6_TYPE_MLQ: /* Multicast listener query. */ - /* Is it a general query? */ - if (ip6_addr_isallnodes_linklocal(ip6_current_dest_addr()) && - ip6_addr_isany(&(mld_hdr->multicast_address))) { - MLD6_STATS_INC(mld6.rx_general); - /* Report all groups, except all nodes group, and if-local groups. */ - group = netif_mld6_data(inp); - while (group != NULL) { - if ((!(ip6_addr_ismulticast_iflocal(&(group->group_address)))) && - (!(ip6_addr_isallnodes_linklocal(&(group->group_address))))) { - mld6_delayed_report(group, mld_hdr->max_resp_delay); - } - group = group->next; - } - } else { - /* Have we joined this group? - * We use IP6 destination address to have a memory aligned copy. - * mld_hdr->multicast_address should be the same. */ - MLD6_STATS_INC(mld6.rx_group); - group = mld6_lookfor_group(inp, ip6_current_dest_addr()); - if (group != NULL) { - /* Schedule a report. */ - mld6_delayed_report(group, mld_hdr->max_resp_delay); - } - } - break; /* ICMP6_TYPE_MLQ */ - case ICMP6_TYPE_MLR: /* Multicast listener report. */ - /* Have we joined this group? - * We use IP6 destination address to have a memory aligned copy. - * mld_hdr->multicast_address should be the same. */ - MLD6_STATS_INC(mld6.rx_report); - group = mld6_lookfor_group(inp, ip6_current_dest_addr()); - if (group != NULL) { - /* If we are waiting to report, cancel it. */ - if (group->group_state == MLD6_GROUP_DELAYING_MEMBER) { - group->timer = 0; /* stopped */ - group->group_state = MLD6_GROUP_IDLE_MEMBER; - group->last_reporter_flag = 0; - } - } - break; /* ICMP6_TYPE_MLR */ - case ICMP6_TYPE_MLD: /* Multicast listener done. */ - /* Do nothing, router will query us. */ - break; /* ICMP6_TYPE_MLD */ - default: - MLD6_STATS_INC(mld6.proterr); - MLD6_STATS_INC(mld6.drop); - break; - } - - pbuf_free(p); -} - -/** - * @ingroup mld6 - * Join a group on one or all network interfaces. - * - * If the group is to be joined on all interfaces, the given group address must - * not have a zone set (i.e., it must have its zone index set to IP6_NO_ZONE). - * If the group is to be joined on one particular interface, the given group - * address may or may not have a zone set. - * - * @param srcaddr ipv6 address (zoned) of the network interface which should - * join a new group. If IP6_ADDR_ANY6, join on all netifs - * @param groupaddr the ipv6 address of the group to join (possibly but not - * necessarily zoned) - * @return ERR_OK if group was joined on the netif(s), an err_t otherwise - */ -err_t -mld6_joingroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr) -{ - err_t err = ERR_VAL; /* no matching interface */ - struct netif *netif; - - LWIP_ASSERT_CORE_LOCKED(); - - /* loop through netif's */ - NETIF_FOREACH(netif) { - /* Should we join this interface ? */ - if (ip6_addr_isany(srcaddr) || - netif_get_ip6_addr_match(netif, srcaddr) >= 0) { - err = mld6_joingroup_netif(netif, groupaddr); - if (err != ERR_OK) { - return err; - } - } - } - - return err; -} - -/** - * @ingroup mld6 - * Join a group on a network interface. - * - * @param netif the network interface which should join a new group. - * @param groupaddr the ipv6 address of the group to join (possibly but not - * necessarily zoned) - * @return ERR_OK if group was joined on the netif, an err_t otherwise - */ -err_t -mld6_joingroup_netif(struct netif *netif, const ip6_addr_t *groupaddr) -{ - struct mld_group *group; -#if LWIP_IPV6_SCOPES - ip6_addr_t ip6addr; - - /* If the address has a particular scope but no zone set, use the netif to - * set one now. Within the mld6 module, all addresses are properly zoned. */ - if (ip6_addr_lacks_zone(groupaddr, IP6_MULTICAST)) { - ip6_addr_set(&ip6addr, groupaddr); - ip6_addr_assign_zone(&ip6addr, IP6_MULTICAST, netif); - groupaddr = &ip6addr; - } - IP6_ADDR_ZONECHECK_NETIF(groupaddr, netif); -#endif /* LWIP_IPV6_SCOPES */ - - LWIP_ASSERT_CORE_LOCKED(); - - /* find group or create a new one if not found */ - group = mld6_lookfor_group(netif, groupaddr); - - if (group == NULL) { - /* Joining a new group. Create a new group entry. */ - group = mld6_new_group(netif, groupaddr); - if (group == NULL) { - return ERR_MEM; - } - - /* Activate this address on the MAC layer. */ - if (netif->mld_mac_filter != NULL) { - netif->mld_mac_filter(netif, groupaddr, NETIF_ADD_MAC_FILTER); - } - - /* Report our membership. */ - MLD6_STATS_INC(mld6.tx_report); - mld6_send(netif, group, ICMP6_TYPE_MLR); - mld6_delayed_report(group, MLD6_JOIN_DELAYING_MEMBER_TMR_MS); - } - - /* Increment group use */ - group->use++; - return ERR_OK; -} - -/** - * @ingroup mld6 - * Leave a group on a network interface. - * - * Zoning of address follows the same rules as @ref mld6_joingroup. - * - * @param srcaddr ipv6 address (zoned) of the network interface which should - * leave the group. If IP6_ADDR_ANY6, leave on all netifs - * @param groupaddr the ipv6 address of the group to leave (possibly, but not - * necessarily zoned) - * @return ERR_OK if group was left on the netif(s), an err_t otherwise - */ -err_t -mld6_leavegroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr) -{ - err_t err = ERR_VAL; /* no matching interface */ - struct netif *netif; - - LWIP_ASSERT_CORE_LOCKED(); - - /* loop through netif's */ - NETIF_FOREACH(netif) { - /* Should we leave this interface ? */ - if (ip6_addr_isany(srcaddr) || - netif_get_ip6_addr_match(netif, srcaddr) >= 0) { - err_t res = mld6_leavegroup_netif(netif, groupaddr); - if (err != ERR_OK) { - /* Store this result if we have not yet gotten a success */ - err = res; - } - } - } - - return err; -} - -/** - * @ingroup mld6 - * Leave a group on a network interface. - * - * @param netif the network interface which should leave the group. - * @param groupaddr the ipv6 address of the group to leave (possibly, but not - * necessarily zoned) - * @return ERR_OK if group was left on the netif, an err_t otherwise - */ -err_t -mld6_leavegroup_netif(struct netif *netif, const ip6_addr_t *groupaddr) -{ - struct mld_group *group; -#if LWIP_IPV6_SCOPES - ip6_addr_t ip6addr; - - if (ip6_addr_lacks_zone(groupaddr, IP6_MULTICAST)) { - ip6_addr_set(&ip6addr, groupaddr); - ip6_addr_assign_zone(&ip6addr, IP6_MULTICAST, netif); - groupaddr = &ip6addr; - } - IP6_ADDR_ZONECHECK_NETIF(groupaddr, netif); -#endif /* LWIP_IPV6_SCOPES */ - - LWIP_ASSERT_CORE_LOCKED(); - - /* find group */ - group = mld6_lookfor_group(netif, groupaddr); - - if (group != NULL) { - /* Leave if there is no other use of the group */ - if (group->use <= 1) { - /* Remove the group from the list */ - mld6_remove_group(netif, group); - - /* If we are the last reporter for this group */ - if (group->last_reporter_flag) { - MLD6_STATS_INC(mld6.tx_leave); - mld6_send(netif, group, ICMP6_TYPE_MLD); - } - - /* Disable the group at the MAC level */ - if (netif->mld_mac_filter != NULL) { - netif->mld_mac_filter(netif, groupaddr, NETIF_DEL_MAC_FILTER); - } - - /* free group struct */ - memp_free(MEMP_MLD6_GROUP, group); - } else { - /* Decrement group use */ - group->use--; - } - - /* Left group */ - return ERR_OK; - } - - /* Group not found */ - return ERR_VAL; -} - - -/** - * Periodic timer for mld processing. Must be called every - * MLD6_TMR_INTERVAL milliseconds (100). - * - * When a delaying member expires, a membership report is sent. - */ -void -mld6_tmr(void) -{ - struct netif *netif; - - NETIF_FOREACH(netif) { - struct mld_group *group = netif_mld6_data(netif); - - while (group != NULL) { - if (group->timer > 0) { - group->timer--; - if (group->timer == 0) { - /* If the state is MLD6_GROUP_DELAYING_MEMBER then we send a report for this group */ - if (group->group_state == MLD6_GROUP_DELAYING_MEMBER) { - MLD6_STATS_INC(mld6.tx_report); - mld6_send(netif, group, ICMP6_TYPE_MLR); - group->group_state = MLD6_GROUP_IDLE_MEMBER; - } - } - } - group = group->next; - } - } -} - -/** - * Schedule a delayed membership report for a group - * - * @param group the mld_group for which "delaying" membership report - * should be sent - * @param maxresp_in the max resp delay provided in the query - */ -static void -mld6_delayed_report(struct mld_group *group, u16_t maxresp_in) -{ - /* Convert maxresp from milliseconds to tmr ticks */ - u16_t maxresp = maxresp_in / MLD6_TMR_INTERVAL; - if (maxresp == 0) { - maxresp = 1; - } - -#ifdef LWIP_RAND - /* Randomize maxresp. (if LWIP_RAND is supported) */ - maxresp = (u16_t)(LWIP_RAND() % maxresp); - if (maxresp == 0) { - maxresp = 1; - } -#endif /* LWIP_RAND */ - - /* Apply timer value if no report has been scheduled already. */ - if ((group->group_state == MLD6_GROUP_IDLE_MEMBER) || - ((group->group_state == MLD6_GROUP_DELAYING_MEMBER) && - ((group->timer == 0) || (maxresp < group->timer)))) { - group->timer = maxresp; - group->group_state = MLD6_GROUP_DELAYING_MEMBER; - } -} - -/** - * Send a MLD message (report or done). - * - * An IPv6 hop-by-hop options header with a router alert option - * is prepended. - * - * @param group the group to report or quit - * @param type ICMP6_TYPE_MLR (report) or ICMP6_TYPE_MLD (done) - */ -static void -mld6_send(struct netif *netif, struct mld_group *group, u8_t type) -{ - struct mld_header *mld_hdr; - struct pbuf *p; - const ip6_addr_t *src_addr; - - /* Allocate a packet. Size is MLD header + IPv6 Hop-by-hop options header. */ - p = pbuf_alloc(PBUF_IP, sizeof(struct mld_header) + MLD6_HBH_HLEN, PBUF_RAM); - if (p == NULL) { - MLD6_STATS_INC(mld6.memerr); - return; - } - - /* Move to make room for Hop-by-hop options header. */ - if (pbuf_remove_header(p, MLD6_HBH_HLEN)) { - pbuf_free(p); - MLD6_STATS_INC(mld6.lenerr); - return; - } - - /* Select our source address. */ - if (!ip6_addr_isvalid(netif_ip6_addr_state(netif, 0))) { - /* This is a special case, when we are performing duplicate address detection. - * We must join the multicast group, but we don't have a valid address yet. */ - src_addr = IP6_ADDR_ANY6; - } else { - /* Use link-local address as source address. */ - src_addr = netif_ip6_addr(netif, 0); - } - - /* MLD message header pointer. */ - mld_hdr = (struct mld_header *)p->payload; - - /* Set fields. */ - mld_hdr->type = type; - mld_hdr->code = 0; - mld_hdr->chksum = 0; - mld_hdr->max_resp_delay = 0; - mld_hdr->reserved = 0; - ip6_addr_copy_to_packed(mld_hdr->multicast_address, group->group_address); - -#if CHECKSUM_GEN_ICMP6 - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP6) { - mld_hdr->chksum = ip6_chksum_pseudo(p, IP6_NEXTH_ICMP6, p->len, - src_addr, &(group->group_address)); - } -#endif /* CHECKSUM_GEN_ICMP6 */ - - /* Add hop-by-hop headers options: router alert with MLD value. */ - ip6_options_add_hbh_ra(p, IP6_NEXTH_ICMP6, IP6_ROUTER_ALERT_VALUE_MLD); - - if (type == ICMP6_TYPE_MLR) { - /* Remember we were the last to report */ - group->last_reporter_flag = 1; - } - - /* Send the packet out. */ - MLD6_STATS_INC(mld6.xmit); - ip6_output_if(p, (ip6_addr_isany(src_addr)) ? NULL : src_addr, &(group->group_address), - MLD6_HL, 0, IP6_NEXTH_HOPBYHOP, netif); - pbuf_free(p); -} - -#endif /* LWIP_IPV6 */ diff --git a/core/c/core/ipv6/nd6.c b/core/c/core/ipv6/nd6.c deleted file mode 100755 index 5deb3f1..0000000 --- a/core/c/core/ipv6/nd6.c +++ /dev/null @@ -1,2434 +0,0 @@ -/** - * @file - * - * Neighbor discovery and stateless address autoconfiguration for IPv6. - * Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 - * (Address autoconfiguration). - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#include "lwip/opt.h" - -#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/nd6.h" -#include "lwip/priv/nd6_priv.h" -#include "lwip/prot/nd6.h" -#include "lwip/prot/icmp6.h" -#include "lwip/pbuf.h" -#include "lwip/mem.h" -#include "lwip/memp.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#include "lwip/inet_chksum.h" -#include "lwip/netif.h" -#include "lwip/icmp6.h" -#include "lwip/mld6.h" -#include "lwip/dhcp6.h" -#include "lwip/ip.h" -#include "lwip/stats.h" -#include "lwip/dns.h" - -#include - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif - -#if LWIP_IPV6_DUP_DETECT_ATTEMPTS > IP6_ADDR_TENTATIVE_COUNT_MASK -#error LWIP_IPV6_DUP_DETECT_ATTEMPTS > IP6_ADDR_TENTATIVE_COUNT_MASK -#endif - -/* Router tables. */ -struct nd6_neighbor_cache_entry neighbor_cache[LWIP_ND6_NUM_NEIGHBORS]; -struct nd6_destination_cache_entry destination_cache[LWIP_ND6_NUM_DESTINATIONS]; -struct nd6_prefix_list_entry prefix_list[LWIP_ND6_NUM_PREFIXES]; -struct nd6_router_list_entry default_router_list[LWIP_ND6_NUM_ROUTERS]; - -/* Default values, can be updated by a RA message. */ -u32_t reachable_time = LWIP_ND6_REACHABLE_TIME; -u32_t retrans_timer = LWIP_ND6_RETRANS_TIMER; /* @todo implement this value in timer */ - -/* Index for cache entries. */ -static u8_t nd6_cached_neighbor_index; -static netif_addr_idx_t nd6_cached_destination_index; - -/* Multicast address holder. */ -static ip6_addr_t multicast_address; - -static u8_t nd6_tmr_rs_reduction; - -/* Static buffer to parse RA packet options */ -union ra_options { - struct lladdr_option lladdr; - struct mtu_option mtu; - struct prefix_option prefix; -#if LWIP_ND6_RDNSS_MAX_DNS_SERVERS - struct rdnss_option rdnss; -#endif -}; -static union ra_options nd6_ra_buffer; - -/* Forward declarations. */ -static s8_t nd6_find_neighbor_cache_entry(const ip6_addr_t *ip6addr); -static s8_t nd6_new_neighbor_cache_entry(void); -static void nd6_free_neighbor_cache_entry(s8_t i); -static s16_t nd6_find_destination_cache_entry(const ip6_addr_t *ip6addr); -static s16_t nd6_new_destination_cache_entry(void); -static int nd6_is_prefix_in_netif(const ip6_addr_t *ip6addr, struct netif *netif); -static s8_t nd6_select_router(const ip6_addr_t *ip6addr, struct netif *netif); -static s8_t nd6_get_router(const ip6_addr_t *router_addr, struct netif *netif); -static s8_t nd6_new_router(const ip6_addr_t *router_addr, struct netif *netif); -static s8_t nd6_get_onlink_prefix(const ip6_addr_t *prefix, struct netif *netif); -static s8_t nd6_new_onlink_prefix(const ip6_addr_t *prefix, struct netif *netif); -static s8_t nd6_get_next_hop_entry(const ip6_addr_t *ip6addr, struct netif *netif); -static err_t nd6_queue_packet(s8_t neighbor_index, struct pbuf *q); - -#define ND6_SEND_FLAG_MULTICAST_DEST 0x01 -#define ND6_SEND_FLAG_ALLNODES_DEST 0x02 -#define ND6_SEND_FLAG_ANY_SRC 0x04 -static void nd6_send_ns(struct netif *netif, const ip6_addr_t *target_addr, u8_t flags); -static void nd6_send_na(struct netif *netif, const ip6_addr_t *target_addr, u8_t flags); -static void nd6_send_neighbor_cache_probe(struct nd6_neighbor_cache_entry *entry, u8_t flags); -#if LWIP_IPV6_SEND_ROUTER_SOLICIT -static err_t nd6_send_rs(struct netif *netif); -#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ - -#if LWIP_ND6_QUEUEING -static void nd6_free_q(struct nd6_q_entry *q); -#else /* LWIP_ND6_QUEUEING */ -#define nd6_free_q(q) pbuf_free(q) -#endif /* LWIP_ND6_QUEUEING */ -static void nd6_send_q(s8_t i); - - -/** - * A local address has been determined to be a duplicate. Take the appropriate - * action(s) on the address and the interface as a whole. - * - * @param netif the netif that owns the address - * @param addr_idx the index of the address detected to be a duplicate - */ -static void -nd6_duplicate_addr_detected(struct netif *netif, s8_t addr_idx) -{ - - /* Mark the address as duplicate, but leave its lifetimes alone. If this was - * a manually assigned address, it will remain in existence as duplicate, and - * as such be unusable for any practical purposes until manual intervention. - * If this was an autogenerated address, the address will follow normal - * expiration rules, and thus disappear once its valid lifetime expires. */ - netif_ip6_addr_set_state(netif, addr_idx, IP6_ADDR_DUPLICATED); - -#if LWIP_IPV6_AUTOCONFIG - /* If the affected address was the link-local address that we use to generate - * all other addresses, then we should not continue to use those derived - * addresses either, so mark them as duplicate as well. For autoconfig-only - * setups, this will make the interface effectively unusable, approaching the - * intention of RFC 4862 Sec. 5.4.5. @todo implement the full requirements */ - if (addr_idx == 0) { - s8_t i; - for (i = 1; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (!ip6_addr_isinvalid(netif_ip6_addr_state(netif, i)) && - !netif_ip6_addr_isstatic(netif, i)) { - netif_ip6_addr_set_state(netif, i, IP6_ADDR_DUPLICATED); - } - } - } -#endif /* LWIP_IPV6_AUTOCONFIG */ -} - -#if LWIP_IPV6_AUTOCONFIG -/** - * We received a router advertisement that contains a prefix with the - * autoconfiguration flag set. Add or update an associated autogenerated - * address. - * - * @param netif the netif on which the router advertisement arrived - * @param prefix_opt a pointer to the prefix option data - * @param prefix_addr an aligned copy of the prefix address - */ -static void -nd6_process_autoconfig_prefix(struct netif *netif, - struct prefix_option *prefix_opt, const ip6_addr_t *prefix_addr) -{ - ip6_addr_t ip6addr; - u32_t valid_life, pref_life; - u8_t addr_state; - s8_t i, free_idx; - - /* The caller already checks RFC 4862 Sec. 5.5.3 points (a) and (b). We do - * the rest, starting with checks for (c) and (d) here. */ - valid_life = lwip_htonl(prefix_opt->valid_lifetime); - pref_life = lwip_htonl(prefix_opt->preferred_lifetime); - if (pref_life > valid_life || prefix_opt->prefix_length != 64) { - return; /* silently ignore this prefix for autoconfiguration purposes */ - } - - /* If an autogenerated address already exists for this prefix, update its - * lifetimes. An address is considered autogenerated if 1) it is not static - * (i.e., manually assigned), and 2) there is an advertised autoconfiguration - * prefix for it (the one we are processing here). This does not necessarily - * exclude the possibility that the address was actually assigned by, say, - * DHCPv6. If that distinction becomes important in the future, more state - * must be kept. As explained elsewhere we also update lifetimes of tentative - * and duplicate addresses. Skip address slot 0 (the link-local address). */ - for (i = 1; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - addr_state = netif_ip6_addr_state(netif, i); - if (!ip6_addr_isinvalid(addr_state) && !netif_ip6_addr_isstatic(netif, i) && - ip6_addr_netcmp(prefix_addr, netif_ip6_addr(netif, i))) { - /* Update the valid lifetime, as per RFC 4862 Sec. 5.5.3 point (e). - * The valid lifetime will never drop to zero as a result of this. */ - u32_t remaining_life = netif_ip6_addr_valid_life(netif, i); - if (valid_life > ND6_2HRS || valid_life > remaining_life) { - netif_ip6_addr_set_valid_life(netif, i, valid_life); - } else if (remaining_life > ND6_2HRS) { - netif_ip6_addr_set_valid_life(netif, i, ND6_2HRS); - } - LWIP_ASSERT("bad valid lifetime", !netif_ip6_addr_isstatic(netif, i)); - /* Update the preferred lifetime. No bounds checks are needed here. In - * rare cases the advertisement may un-deprecate the address, though. - * Deprecation is left to the timer code where it is handled anyway. */ - if (pref_life > 0 && addr_state == IP6_ADDR_DEPRECATED) { - netif_ip6_addr_set_state(netif, i, IP6_ADDR_PREFERRED); - } - netif_ip6_addr_set_pref_life(netif, i, pref_life); - return; /* there should be at most one matching address */ - } - } - - /* No autogenerated address exists for this prefix yet. See if we can add a - * new one. However, if IPv6 autoconfiguration is administratively disabled, - * do not generate new addresses, but do keep updating lifetimes for existing - * addresses. Also, when adding new addresses, we must protect explicitly - * against a valid lifetime of zero, because again, we use that as a special - * value. The generated address would otherwise expire immediately anyway. - * Finally, the original link-local address must be usable at all. We start - * creating addresses even if the link-local address is still in tentative - * state though, and deal with the fallout of that upon DAD collision. */ - addr_state = netif_ip6_addr_state(netif, 0); - if (!netif->ip6_autoconfig_enabled || valid_life == IP6_ADDR_LIFE_STATIC || - ip6_addr_isinvalid(addr_state) || ip6_addr_isduplicated(addr_state)) { - return; - } - - /* Construct the new address that we intend to use, and then see if that - * address really does not exist. It might have been added manually, after - * all. As a side effect, find a free slot. Note that we cannot use - * netif_add_ip6_address() here, as it would return ERR_OK if the address - * already did exist, resulting in that address being given lifetimes. */ - IP6_ADDR(&ip6addr, prefix_addr->addr[0], prefix_addr->addr[1], - netif_ip6_addr(netif, 0)->addr[2], netif_ip6_addr(netif, 0)->addr[3]); - ip6_addr_assign_zone(&ip6addr, IP6_UNICAST, netif); - - free_idx = 0; - for (i = 1; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (!ip6_addr_isinvalid(netif_ip6_addr_state(netif, i))) { - if (ip6_addr_cmp(&ip6addr, netif_ip6_addr(netif, i))) { - return; /* formed address already exists */ - } - } else if (free_idx == 0) { - free_idx = i; - } - } - if (free_idx == 0) { - return; /* no address slots available, try again on next advertisement */ - } - - /* Assign the new address to the interface. */ - ip_addr_copy_from_ip6(netif->ip6_addr[free_idx], ip6addr); - netif_ip6_addr_set_valid_life(netif, free_idx, valid_life); - netif_ip6_addr_set_pref_life(netif, free_idx, pref_life); - netif_ip6_addr_set_state(netif, free_idx, IP6_ADDR_TENTATIVE); -} -#endif /* LWIP_IPV6_AUTOCONFIG */ - -/** - * Process an incoming neighbor discovery message - * - * @param p the nd packet, p->payload pointing to the icmpv6 header - * @param inp the netif on which this packet was received - */ -void -nd6_input(struct pbuf *p, struct netif *inp) -{ - u8_t msg_type; - s8_t i; - s16_t dest_idx; - - ND6_STATS_INC(nd6.recv); - - msg_type = *((u8_t *)p->payload); - switch (msg_type) { - case ICMP6_TYPE_NA: /* Neighbor Advertisement. */ - { - struct na_header *na_hdr; - struct lladdr_option *lladdr_opt; - ip6_addr_t target_address; - - /* Check that na header fits in packet. */ - if (p->len < (sizeof(struct na_header))) { - /* @todo debug message */ - pbuf_free(p); - ND6_STATS_INC(nd6.lenerr); - ND6_STATS_INC(nd6.drop); - return; - } - - na_hdr = (struct na_header *)p->payload; - - /* Create an aligned, zoned copy of the target address. */ - ip6_addr_copy_from_packed(target_address, na_hdr->target_address); - ip6_addr_assign_zone(&target_address, IP6_UNICAST, inp); - - /* Check a subset of the other RFC 4861 Sec. 7.1.2 requirements. */ - if (IP6H_HOPLIM(ip6_current_header()) != ND6_HOPLIM || na_hdr->code != 0 || - ip6_addr_ismulticast(&target_address)) { - pbuf_free(p); - ND6_STATS_INC(nd6.proterr); - ND6_STATS_INC(nd6.drop); - return; - } - - /* @todo RFC MUST: if IP destination is multicast, Solicited flag is zero */ - /* @todo RFC MUST: all included options have a length greater than zero */ - - /* Unsolicited NA?*/ - if (ip6_addr_ismulticast(ip6_current_dest_addr())) { - /* This is an unsolicited NA. - * link-layer changed? - * part of DAD mechanism? */ - -#if LWIP_IPV6_DUP_DETECT_ATTEMPTS - /* If the target address matches this netif, it is a DAD response. */ - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (!ip6_addr_isinvalid(netif_ip6_addr_state(inp, i)) && - !ip6_addr_isduplicated(netif_ip6_addr_state(inp, i)) && - ip6_addr_cmp(&target_address, netif_ip6_addr(inp, i))) { - /* We are using a duplicate address. */ - nd6_duplicate_addr_detected(inp, i); - - pbuf_free(p); - return; - } - } -#endif /* LWIP_IPV6_DUP_DETECT_ATTEMPTS */ - - /* Check that link-layer address option also fits in packet. */ - if (p->len < (sizeof(struct na_header) + 2)) { - /* @todo debug message */ - pbuf_free(p); - ND6_STATS_INC(nd6.lenerr); - ND6_STATS_INC(nd6.drop); - return; - } - - lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct na_header)); - - if (p->len < (sizeof(struct na_header) + (lladdr_opt->length << 3))) { - /* @todo debug message */ - pbuf_free(p); - ND6_STATS_INC(nd6.lenerr); - ND6_STATS_INC(nd6.drop); - return; - } - - /* This is an unsolicited NA, most likely there was a LLADDR change. */ - i = nd6_find_neighbor_cache_entry(&target_address); - if (i >= 0) { - if (na_hdr->flags & ND6_FLAG_OVERRIDE) { - MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); - } - } - } else { - /* This is a solicited NA. - * neighbor address resolution response? - * neighbor unreachability detection response? */ - - /* Find the cache entry corresponding to this na. */ - i = nd6_find_neighbor_cache_entry(&target_address); - if (i < 0) { - /* We no longer care about this target address. drop it. */ - pbuf_free(p); - return; - } - - /* Update cache entry. */ - if ((na_hdr->flags & ND6_FLAG_OVERRIDE) || - (neighbor_cache[i].state == ND6_INCOMPLETE)) { - /* Check that link-layer address option also fits in packet. */ - if (p->len < (sizeof(struct na_header) + 2)) { - /* @todo debug message */ - pbuf_free(p); - ND6_STATS_INC(nd6.lenerr); - ND6_STATS_INC(nd6.drop); - return; - } - - lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct na_header)); - - if (p->len < (sizeof(struct na_header) + (lladdr_opt->length << 3))) { - /* @todo debug message */ - pbuf_free(p); - ND6_STATS_INC(nd6.lenerr); - ND6_STATS_INC(nd6.drop); - return; - } - - MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); - } - - neighbor_cache[i].netif = inp; - neighbor_cache[i].state = ND6_REACHABLE; - neighbor_cache[i].counter.reachable_time = reachable_time; - - /* Send queued packets, if any. */ - if (neighbor_cache[i].q != NULL) { - nd6_send_q(i); - } - } - - break; /* ICMP6_TYPE_NA */ - } - case ICMP6_TYPE_NS: /* Neighbor solicitation. */ - { - struct ns_header *ns_hdr; - struct lladdr_option *lladdr_opt; - ip6_addr_t target_address; - u8_t accepted; - - /* Check that ns header fits in packet. */ - if (p->len < sizeof(struct ns_header)) { - /* @todo debug message */ - pbuf_free(p); - ND6_STATS_INC(nd6.lenerr); - ND6_STATS_INC(nd6.drop); - return; - } - - ns_hdr = (struct ns_header *)p->payload; - - /* Create an aligned, zoned copy of the target address. */ - ip6_addr_copy_from_packed(target_address, ns_hdr->target_address); - ip6_addr_assign_zone(&target_address, IP6_UNICAST, inp); - - /* Check a subset of the other RFC 4861 Sec. 7.1.1 requirements. */ - if (IP6H_HOPLIM(ip6_current_header()) != ND6_HOPLIM || ns_hdr->code != 0 || - ip6_addr_ismulticast(&target_address)) { - pbuf_free(p); - ND6_STATS_INC(nd6.proterr); - ND6_STATS_INC(nd6.drop); - return; - } - - /* @todo RFC MUST: all included options have a length greater than zero */ - /* @todo RFC MUST: if IP source is 'any', destination is solicited-node multicast address */ - /* @todo RFC MUST: if IP source is 'any', there is no source LL address option */ - - /* Check if there is a link-layer address provided. Only point to it if in this buffer. */ - if (p->len >= (sizeof(struct ns_header) + 2)) { - lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct ns_header)); - if (p->len < (sizeof(struct ns_header) + (lladdr_opt->length << 3))) { - lladdr_opt = NULL; - } - } else { - lladdr_opt = NULL; - } - - /* Check if the target address is configured on the receiving netif. */ - accepted = 0; - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; ++i) { - if ((ip6_addr_isvalid(netif_ip6_addr_state(inp, i)) || - (ip6_addr_istentative(netif_ip6_addr_state(inp, i)) && - ip6_addr_isany(ip6_current_src_addr()))) && - ip6_addr_cmp(&target_address, netif_ip6_addr(inp, i))) { - accepted = 1; - break; - } - } - - /* NS not for us? */ - if (!accepted) { - pbuf_free(p); - return; - } - - /* Check for ANY address in src (DAD algorithm). */ - if (ip6_addr_isany(ip6_current_src_addr())) { - /* Sender is validating this address. */ - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; ++i) { - if (!ip6_addr_isinvalid(netif_ip6_addr_state(inp, i)) && - ip6_addr_cmp(&target_address, netif_ip6_addr(inp, i))) { - /* Send a NA back so that the sender does not use this address. */ - nd6_send_na(inp, netif_ip6_addr(inp, i), ND6_FLAG_OVERRIDE | ND6_SEND_FLAG_ALLNODES_DEST); - if (ip6_addr_istentative(netif_ip6_addr_state(inp, i))) { - /* We shouldn't use this address either. */ - nd6_duplicate_addr_detected(inp, i); - } - } - } - } else { - /* Sender is trying to resolve our address. */ - /* Verify that they included their own link-layer address. */ - if (lladdr_opt == NULL) { - /* Not a valid message. */ - pbuf_free(p); - ND6_STATS_INC(nd6.proterr); - ND6_STATS_INC(nd6.drop); - return; - } - - i = nd6_find_neighbor_cache_entry(ip6_current_src_addr()); - if (i>= 0) { - /* We already have a record for the solicitor. */ - if (neighbor_cache[i].state == ND6_INCOMPLETE) { - neighbor_cache[i].netif = inp; - MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); - - /* Delay probe in case we get confirmation of reachability from upper layer (TCP). */ - neighbor_cache[i].state = ND6_DELAY; - neighbor_cache[i].counter.delay_time = LWIP_ND6_DELAY_FIRST_PROBE_TIME / ND6_TMR_INTERVAL; - } - } else { - /* Add their IPv6 address and link-layer address to neighbor cache. - * We will need it at least to send a unicast NA message, but most - * likely we will also be communicating with this node soon. */ - i = nd6_new_neighbor_cache_entry(); - if (i < 0) { - /* We couldn't assign a cache entry for this neighbor. - * we won't be able to reply. drop it. */ - pbuf_free(p); - ND6_STATS_INC(nd6.memerr); - return; - } - neighbor_cache[i].netif = inp; - MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); - ip6_addr_set(&(neighbor_cache[i].next_hop_address), ip6_current_src_addr()); - - /* Receiving a message does not prove reachability: only in one direction. - * Delay probe in case we get confirmation of reachability from upper layer (TCP). */ - neighbor_cache[i].state = ND6_DELAY; - neighbor_cache[i].counter.delay_time = LWIP_ND6_DELAY_FIRST_PROBE_TIME / ND6_TMR_INTERVAL; - } - - /* Send back a NA for us. Allocate the reply pbuf. */ - nd6_send_na(inp, &target_address, ND6_FLAG_SOLICITED | ND6_FLAG_OVERRIDE); - } - - break; /* ICMP6_TYPE_NS */ - } - case ICMP6_TYPE_RA: /* Router Advertisement. */ - { - struct ra_header *ra_hdr; - u8_t *buffer; /* Used to copy options. */ - u16_t offset; -#if LWIP_ND6_RDNSS_MAX_DNS_SERVERS - /* There can be multiple RDNSS options per RA */ - u8_t rdnss_server_idx = 0; -#endif /* LWIP_ND6_RDNSS_MAX_DNS_SERVERS */ - - /* Check that RA header fits in packet. */ - if (p->len < sizeof(struct ra_header)) { - /* @todo debug message */ - pbuf_free(p); - ND6_STATS_INC(nd6.lenerr); - ND6_STATS_INC(nd6.drop); - return; - } - - ra_hdr = (struct ra_header *)p->payload; - - /* Check a subset of the other RFC 4861 Sec. 6.1.2 requirements. */ - if (!ip6_addr_islinklocal(ip6_current_src_addr()) || - IP6H_HOPLIM(ip6_current_header()) != ND6_HOPLIM || ra_hdr->code != 0) { - pbuf_free(p); - ND6_STATS_INC(nd6.proterr); - ND6_STATS_INC(nd6.drop); - return; - } - - /* @todo RFC MUST: all included options have a length greater than zero */ - - /* If we are sending RS messages, stop. */ -#if LWIP_IPV6_SEND_ROUTER_SOLICIT - /* ensure at least one solicitation is sent (see RFC 4861, ch. 6.3.7) */ - if ((inp->rs_count < LWIP_ND6_MAX_MULTICAST_SOLICIT) || - (nd6_send_rs(inp) == ERR_OK)) { - inp->rs_count = 0; - } else { - inp->rs_count = 1; - } -#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ - - /* Get the matching default router entry. */ - i = nd6_get_router(ip6_current_src_addr(), inp); - if (i < 0) { - /* Create a new router entry. */ - i = nd6_new_router(ip6_current_src_addr(), inp); - } - - if (i < 0) { - /* Could not create a new router entry. */ - pbuf_free(p); - ND6_STATS_INC(nd6.memerr); - return; - } - - /* Re-set invalidation timer. */ - default_router_list[i].invalidation_timer = lwip_htons(ra_hdr->router_lifetime); - - /* Re-set default timer values. */ -#if LWIP_ND6_ALLOW_RA_UPDATES - if (ra_hdr->retrans_timer > 0) { - retrans_timer = lwip_htonl(ra_hdr->retrans_timer); - } - if (ra_hdr->reachable_time > 0) { - reachable_time = lwip_htonl(ra_hdr->reachable_time); - } -#endif /* LWIP_ND6_ALLOW_RA_UPDATES */ - - /* @todo set default hop limit... */ - /* ra_hdr->current_hop_limit;*/ - - /* Update flags in local entry (incl. preference). */ - default_router_list[i].flags = ra_hdr->flags; - -#if LWIP_IPV6_DHCP6 - /* Trigger DHCPv6 if enabled */ - dhcp6_nd6_ra_trigger(inp, ra_hdr->flags & ND6_RA_FLAG_MANAGED_ADDR_CONFIG, - ra_hdr->flags & ND6_RA_FLAG_OTHER_CONFIG); -#endif - - /* Offset to options. */ - offset = sizeof(struct ra_header); - - /* Process each option. */ - while ((p->tot_len - offset) >= 2) { - u8_t option_type; - u16_t option_len; - int option_len8 = pbuf_try_get_at(p, offset + 1); - if (option_len8 <= 0) { - /* read beyond end or zero length */ - goto lenerr_drop_free_return; - } - option_len = ((u8_t)option_len8) << 3; - if (option_len > p->tot_len - offset) { - /* short packet (option does not fit in) */ - goto lenerr_drop_free_return; - } - if (p->len == p->tot_len) { - /* no need to copy from contiguous pbuf */ - buffer = &((u8_t*)p->payload)[offset]; - } else { - /* check if this option fits into our buffer */ - if (option_len > sizeof(nd6_ra_buffer)) { - option_type = pbuf_get_at(p, offset); - /* invalid option length */ - if (option_type != ND6_OPTION_TYPE_RDNSS) { - goto lenerr_drop_free_return; - } - /* we allow RDNSS option to be longer - we'll just drop some servers */ - option_len = sizeof(nd6_ra_buffer); - } - buffer = (u8_t*)&nd6_ra_buffer; - option_len = pbuf_copy_partial(p, &nd6_ra_buffer, option_len, offset); - } - option_type = buffer[0]; - switch (option_type) { - case ND6_OPTION_TYPE_SOURCE_LLADDR: - { - struct lladdr_option *lladdr_opt; - if (option_len < sizeof(struct lladdr_option)) { - goto lenerr_drop_free_return; - } - lladdr_opt = (struct lladdr_option *)buffer; - if ((default_router_list[i].neighbor_entry != NULL) && - (default_router_list[i].neighbor_entry->state == ND6_INCOMPLETE)) { - SMEMCPY(default_router_list[i].neighbor_entry->lladdr, lladdr_opt->addr, inp->hwaddr_len); - default_router_list[i].neighbor_entry->state = ND6_REACHABLE; - default_router_list[i].neighbor_entry->counter.reachable_time = reachable_time; - } - break; - } - case ND6_OPTION_TYPE_MTU: - { - struct mtu_option *mtu_opt; - u32_t mtu32; - if (option_len < sizeof(struct mtu_option)) { - goto lenerr_drop_free_return; - } - mtu_opt = (struct mtu_option *)buffer; - mtu32 = lwip_htonl(mtu_opt->mtu); - if ((mtu32 >= 1280) && (mtu32 <= 0xffff)) { -#if LWIP_ND6_ALLOW_RA_UPDATES - if (inp->mtu) { - /* don't set the mtu for IPv6 higher than the netif driver supports */ - inp->mtu6 = LWIP_MIN(inp->mtu, (u16_t)mtu32); - } else { - inp->mtu6 = (u16_t)mtu32; - } -#endif /* LWIP_ND6_ALLOW_RA_UPDATES */ - } - break; - } - case ND6_OPTION_TYPE_PREFIX_INFO: - { - struct prefix_option *prefix_opt; - ip6_addr_t prefix_addr; - if (option_len < sizeof(struct prefix_option)) { - goto lenerr_drop_free_return; - } - - prefix_opt = (struct prefix_option *)buffer; - - /* Get a memory-aligned copy of the prefix. */ - ip6_addr_copy_from_packed(prefix_addr, prefix_opt->prefix); - ip6_addr_assign_zone(&prefix_addr, IP6_UNICAST, inp); - - if (!ip6_addr_islinklocal(&prefix_addr)) { - if ((prefix_opt->flags & ND6_PREFIX_FLAG_ON_LINK) && - (prefix_opt->prefix_length == 64)) { - /* Add to on-link prefix list. */ - u32_t valid_life; - s8_t prefix; - - valid_life = lwip_htonl(prefix_opt->valid_lifetime); - - /* find cache entry for this prefix. */ - prefix = nd6_get_onlink_prefix(&prefix_addr, inp); - if (prefix < 0 && valid_life > 0) { - /* Create a new cache entry. */ - prefix = nd6_new_onlink_prefix(&prefix_addr, inp); - } - if (prefix >= 0) { - prefix_list[prefix].invalidation_timer = valid_life; - } - } -#if LWIP_IPV6_AUTOCONFIG - if (prefix_opt->flags & ND6_PREFIX_FLAG_AUTONOMOUS) { - /* Perform processing for autoconfiguration. */ - nd6_process_autoconfig_prefix(inp, prefix_opt, &prefix_addr); - } -#endif /* LWIP_IPV6_AUTOCONFIG */ - } - - break; - } - case ND6_OPTION_TYPE_ROUTE_INFO: - /* @todo implement preferred routes. - struct route_option * route_opt; - route_opt = (struct route_option *)buffer;*/ - - break; -#if LWIP_ND6_RDNSS_MAX_DNS_SERVERS - case ND6_OPTION_TYPE_RDNSS: - { - u8_t num, n; - u16_t copy_offset = offset + SIZEOF_RDNSS_OPTION_BASE; - struct rdnss_option * rdnss_opt; - if (option_len < SIZEOF_RDNSS_OPTION_BASE) { - goto lenerr_drop_free_return; - } - - rdnss_opt = (struct rdnss_option *)buffer; - num = (rdnss_opt->length - 1) / 2; - for (n = 0; (rdnss_server_idx < DNS_MAX_SERVERS) && (n < num); n++) { - ip_addr_t rdnss_address; - - /* Copy directly from pbuf to get an aligned, zoned copy of the prefix. */ - if (pbuf_copy_partial(p, &rdnss_address, sizeof(ip6_addr_p_t), copy_offset) == sizeof(ip6_addr_p_t)) { - IP_SET_TYPE_VAL(rdnss_address, IPADDR_TYPE_V6); - ip6_addr_assign_zone(ip_2_ip6(&rdnss_address), IP6_UNKNOWN, inp); - - if (htonl(rdnss_opt->lifetime) > 0) { - /* TODO implement Lifetime > 0 */ - dns_setserver(rdnss_server_idx++, &rdnss_address); - } else { - /* TODO implement DNS removal in dns.c */ - u8_t s; - for (s = 0; s < DNS_MAX_SERVERS; s++) { - const ip_addr_t *addr = dns_getserver(s); - if(ip_addr_cmp(addr, &rdnss_address)) { - dns_setserver(s, NULL); - } - } - } - } - } - break; - } -#endif /* LWIP_ND6_RDNSS_MAX_DNS_SERVERS */ - default: - /* Unrecognized option, abort. */ - ND6_STATS_INC(nd6.proterr); - break; - } - /* option length is checked earlier to be non-zero to make sure loop ends */ - offset += 8 * (u8_t)option_len8; - } - - break; /* ICMP6_TYPE_RA */ - } - case ICMP6_TYPE_RD: /* Redirect */ - { - struct redirect_header *redir_hdr; - struct lladdr_option *lladdr_opt; - ip6_addr_t destination_address, target_address; - - /* Check that Redir header fits in packet. */ - if (p->len < sizeof(struct redirect_header)) { - /* @todo debug message */ - pbuf_free(p); - ND6_STATS_INC(nd6.lenerr); - ND6_STATS_INC(nd6.drop); - return; - } - - redir_hdr = (struct redirect_header *)p->payload; - - /* Create an aligned, zoned copy of the destination address. */ - ip6_addr_copy_from_packed(destination_address, redir_hdr->destination_address); - ip6_addr_assign_zone(&destination_address, IP6_UNICAST, inp); - - /* Check a subset of the other RFC 4861 Sec. 8.1 requirements. */ - if (!ip6_addr_islinklocal(ip6_current_src_addr()) || - IP6H_HOPLIM(ip6_current_header()) != ND6_HOPLIM || - redir_hdr->code != 0 || ip6_addr_ismulticast(&destination_address)) { - pbuf_free(p); - ND6_STATS_INC(nd6.proterr); - ND6_STATS_INC(nd6.drop); - return; - } - - /* @todo RFC MUST: IP source address equals first-hop router for destination_address */ - /* @todo RFC MUST: ICMP target address is either link-local address or same as destination_address */ - /* @todo RFC MUST: all included options have a length greater than zero */ - - if (p->len >= (sizeof(struct redirect_header) + 2)) { - lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct redirect_header)); - if (p->len < (sizeof(struct redirect_header) + (lladdr_opt->length << 3))) { - lladdr_opt = NULL; - } - } else { - lladdr_opt = NULL; - } - - /* Find dest address in cache */ - dest_idx = nd6_find_destination_cache_entry(&destination_address); - if (dest_idx < 0) { - /* Destination not in cache, drop packet. */ - pbuf_free(p); - return; - } - - /* Create an aligned, zoned copy of the target address. */ - ip6_addr_copy_from_packed(target_address, redir_hdr->target_address); - ip6_addr_assign_zone(&target_address, IP6_UNICAST, inp); - - /* Set the new target address. */ - ip6_addr_copy(destination_cache[dest_idx].next_hop_addr, target_address); - - /* If Link-layer address of other router is given, try to add to neighbor cache. */ - if (lladdr_opt != NULL) { - if (lladdr_opt->type == ND6_OPTION_TYPE_TARGET_LLADDR) { - i = nd6_find_neighbor_cache_entry(&target_address); - if (i < 0) { - i = nd6_new_neighbor_cache_entry(); - if (i >= 0) { - neighbor_cache[i].netif = inp; - MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); - ip6_addr_copy(neighbor_cache[i].next_hop_address, target_address); - - /* Receiving a message does not prove reachability: only in one direction. - * Delay probe in case we get confirmation of reachability from upper layer (TCP). */ - neighbor_cache[i].state = ND6_DELAY; - neighbor_cache[i].counter.delay_time = LWIP_ND6_DELAY_FIRST_PROBE_TIME / ND6_TMR_INTERVAL; - } - } - if (i >= 0) { - if (neighbor_cache[i].state == ND6_INCOMPLETE) { - MEMCPY(neighbor_cache[i].lladdr, lladdr_opt->addr, inp->hwaddr_len); - /* Receiving a message does not prove reachability: only in one direction. - * Delay probe in case we get confirmation of reachability from upper layer (TCP). */ - neighbor_cache[i].state = ND6_DELAY; - neighbor_cache[i].counter.delay_time = LWIP_ND6_DELAY_FIRST_PROBE_TIME / ND6_TMR_INTERVAL; - } - } - } - } - break; /* ICMP6_TYPE_RD */ - } - case ICMP6_TYPE_PTB: /* Packet too big */ - { - struct icmp6_hdr *icmp6hdr; /* Packet too big message */ - struct ip6_hdr *ip6hdr; /* IPv6 header of the packet which caused the error */ - u32_t pmtu; - ip6_addr_t destination_address; - - /* Check that ICMPv6 header + IPv6 header fit in payload */ - if (p->len < (sizeof(struct icmp6_hdr) + IP6_HLEN)) { - /* drop short packets */ - pbuf_free(p); - ND6_STATS_INC(nd6.lenerr); - ND6_STATS_INC(nd6.drop); - return; - } - - icmp6hdr = (struct icmp6_hdr *)p->payload; - ip6hdr = (struct ip6_hdr *)((u8_t*)p->payload + sizeof(struct icmp6_hdr)); - - /* Create an aligned, zoned copy of the destination address. */ - ip6_addr_copy_from_packed(destination_address, ip6hdr->dest); - ip6_addr_assign_zone(&destination_address, IP6_UNKNOWN, inp); - - /* Look for entry in destination cache. */ - dest_idx = nd6_find_destination_cache_entry(&destination_address); - if (dest_idx < 0) { - /* Destination not in cache, drop packet. */ - pbuf_free(p); - return; - } - - /* Change the Path MTU. */ - pmtu = lwip_htonl(icmp6hdr->data); - destination_cache[dest_idx].pmtu = (u16_t)LWIP_MIN(pmtu, 0xFFFF); - - break; /* ICMP6_TYPE_PTB */ - } - - default: - ND6_STATS_INC(nd6.proterr); - ND6_STATS_INC(nd6.drop); - break; /* default */ - } - - pbuf_free(p); - return; -lenerr_drop_free_return: - ND6_STATS_INC(nd6.lenerr); - ND6_STATS_INC(nd6.drop); - pbuf_free(p); -} - - -/** - * Periodic timer for Neighbor discovery functions: - * - * - Update neighbor reachability states - * - Update destination cache entries age - * - Update invalidation timers of default routers and on-link prefixes - * - Update lifetimes of our addresses - * - Perform duplicate address detection (DAD) for our addresses - * - Send router solicitations - */ -void -nd6_tmr(void) -{ - s8_t i; - struct netif *netif; - - /* Process neighbor entries. */ - for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { - switch (neighbor_cache[i].state) { - case ND6_INCOMPLETE: - if ((neighbor_cache[i].counter.probes_sent >= LWIP_ND6_MAX_MULTICAST_SOLICIT) && - (!neighbor_cache[i].isrouter)) { - /* Retries exceeded. */ - nd6_free_neighbor_cache_entry(i); - } else { - /* Send a NS for this entry. */ - neighbor_cache[i].counter.probes_sent++; - nd6_send_neighbor_cache_probe(&neighbor_cache[i], ND6_SEND_FLAG_MULTICAST_DEST); - } - break; - case ND6_REACHABLE: - /* Send queued packets, if any are left. Should have been sent already. */ - if (neighbor_cache[i].q != NULL) { - nd6_send_q(i); - } - if (neighbor_cache[i].counter.reachable_time <= ND6_TMR_INTERVAL) { - /* Change to stale state. */ - neighbor_cache[i].state = ND6_STALE; - neighbor_cache[i].counter.stale_time = 0; - } else { - neighbor_cache[i].counter.reachable_time -= ND6_TMR_INTERVAL; - } - break; - case ND6_STALE: - neighbor_cache[i].counter.stale_time++; - break; - case ND6_DELAY: - if (neighbor_cache[i].counter.delay_time <= 1) { - /* Change to PROBE state. */ - neighbor_cache[i].state = ND6_PROBE; - neighbor_cache[i].counter.probes_sent = 0; - } else { - neighbor_cache[i].counter.delay_time--; - } - break; - case ND6_PROBE: - if ((neighbor_cache[i].counter.probes_sent >= LWIP_ND6_MAX_MULTICAST_SOLICIT) && - (!neighbor_cache[i].isrouter)) { - /* Retries exceeded. */ - nd6_free_neighbor_cache_entry(i); - } else { - /* Send a NS for this entry. */ - neighbor_cache[i].counter.probes_sent++; - nd6_send_neighbor_cache_probe(&neighbor_cache[i], 0); - } - break; - case ND6_NO_ENTRY: - default: - /* Do nothing. */ - break; - } - } - - /* Process destination entries. */ - for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) { - destination_cache[i].age++; - } - - /* Process router entries. */ - for (i = 0; i < LWIP_ND6_NUM_ROUTERS; i++) { - if (default_router_list[i].neighbor_entry != NULL) { - /* Active entry. */ - if (default_router_list[i].invalidation_timer <= ND6_TMR_INTERVAL / 1000) { - /* No more than 1 second remaining. Clear this entry. Also clear any of - * its destination cache entries, as per RFC 4861 Sec. 5.3 and 6.3.5. */ - s8_t j; - for (j = 0; j < LWIP_ND6_NUM_DESTINATIONS; j++) { - if (ip6_addr_cmp(&destination_cache[j].next_hop_addr, - &default_router_list[i].neighbor_entry->next_hop_address)) { - ip6_addr_set_any(&destination_cache[j].destination_addr); - } - } - default_router_list[i].neighbor_entry->isrouter = 0; - default_router_list[i].neighbor_entry = NULL; - default_router_list[i].invalidation_timer = 0; - default_router_list[i].flags = 0; - } else { - default_router_list[i].invalidation_timer -= ND6_TMR_INTERVAL / 1000; - } - } - } - - /* Process prefix entries. */ - for (i = 0; i < LWIP_ND6_NUM_PREFIXES; i++) { - if (prefix_list[i].netif != NULL) { - if (prefix_list[i].invalidation_timer <= ND6_TMR_INTERVAL / 1000) { - /* Entry timed out, remove it */ - prefix_list[i].invalidation_timer = 0; - prefix_list[i].netif = NULL; - } else { - prefix_list[i].invalidation_timer -= ND6_TMR_INTERVAL / 1000; - } - } - } - - /* Process our own addresses, updating address lifetimes and/or DAD state. */ - NETIF_FOREACH(netif) { - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; ++i) { - u8_t addr_state; -#if LWIP_IPV6_ADDRESS_LIFETIMES - /* Step 1: update address lifetimes (valid and preferred). */ - addr_state = netif_ip6_addr_state(netif, i); - /* RFC 4862 is not entirely clear as to whether address lifetimes affect - * tentative addresses, and is even less clear as to what should happen - * with duplicate addresses. We choose to track and update lifetimes for - * both those types, although for different reasons: - * - for tentative addresses, the line of thought of Sec. 5.7 combined - * with the potentially long period that an address may be in tentative - * state (due to the interface being down) suggests that lifetimes - * should be independent of external factors which would include DAD; - * - for duplicate addresses, retiring them early could result in a new - * but unwanted attempt at marking them as valid, while retiring them - * late/never could clog up address slots on the netif. - * As a result, we may end up expiring addresses of either type here. - */ - if (!ip6_addr_isinvalid(addr_state) && - !netif_ip6_addr_isstatic(netif, i)) { - u32_t life = netif_ip6_addr_valid_life(netif, i); - if (life <= ND6_TMR_INTERVAL / 1000) { - /* The address has expired. */ - netif_ip6_addr_set_valid_life(netif, i, 0); - netif_ip6_addr_set_pref_life(netif, i, 0); - netif_ip6_addr_set_state(netif, i, IP6_ADDR_INVALID); - } else { - if (!ip6_addr_life_isinfinite(life)) { - life -= ND6_TMR_INTERVAL / 1000; - LWIP_ASSERT("bad valid lifetime", life != IP6_ADDR_LIFE_STATIC); - netif_ip6_addr_set_valid_life(netif, i, life); - } - /* The address is still here. Update the preferred lifetime too. */ - life = netif_ip6_addr_pref_life(netif, i); - if (life <= ND6_TMR_INTERVAL / 1000) { - /* This case must also trigger if 'life' was already zero, so as to - * deal correctly with advertised preferred-lifetime reductions. */ - netif_ip6_addr_set_pref_life(netif, i, 0); - if (addr_state == IP6_ADDR_PREFERRED) - netif_ip6_addr_set_state(netif, i, IP6_ADDR_DEPRECATED); - } else if (!ip6_addr_life_isinfinite(life)) { - life -= ND6_TMR_INTERVAL / 1000; - netif_ip6_addr_set_pref_life(netif, i, life); - } - } - } - /* The address state may now have changed, so reobtain it next. */ -#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */ - /* Step 2: update DAD state. */ - addr_state = netif_ip6_addr_state(netif, i); - if (ip6_addr_istentative(addr_state)) { - if ((addr_state & IP6_ADDR_TENTATIVE_COUNT_MASK) >= LWIP_IPV6_DUP_DETECT_ATTEMPTS) { - /* No NA received in response. Mark address as valid. For dynamic - * addresses with an expired preferred lifetime, the state is set to - * deprecated right away. That should almost never happen, though. */ - addr_state = IP6_ADDR_PREFERRED; -#if LWIP_IPV6_ADDRESS_LIFETIMES - if (!netif_ip6_addr_isstatic(netif, i) && - netif_ip6_addr_pref_life(netif, i) == 0) { - addr_state = IP6_ADDR_DEPRECATED; - } -#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */ - netif_ip6_addr_set_state(netif, i, addr_state); - } else if (netif_is_up(netif) && netif_is_link_up(netif)) { - /* tentative: set next state by increasing by one */ - netif_ip6_addr_set_state(netif, i, addr_state + 1); - /* Send a NS for this address. Use the unspecified address as source - * address in all cases (RFC 4862 Sec. 5.4.2), not in the least - * because as it is, we only consider multicast replies for DAD. */ - nd6_send_ns(netif, netif_ip6_addr(netif, i), - ND6_SEND_FLAG_MULTICAST_DEST | ND6_SEND_FLAG_ANY_SRC); - } - } - } - } - -#if LWIP_IPV6_SEND_ROUTER_SOLICIT - /* Send router solicitation messages, if necessary. */ - if (!nd6_tmr_rs_reduction) { - nd6_tmr_rs_reduction = (ND6_RTR_SOLICITATION_INTERVAL / ND6_TMR_INTERVAL) - 1; - NETIF_FOREACH(netif) { - if ((netif->rs_count > 0) && netif_is_up(netif) && - netif_is_link_up(netif) && - !ip6_addr_isinvalid(netif_ip6_addr_state(netif, 0)) && - !ip6_addr_isduplicated(netif_ip6_addr_state(netif, 0))) { - if (nd6_send_rs(netif) == ERR_OK) { - netif->rs_count--; - } - } - } - } else { - nd6_tmr_rs_reduction--; - } -#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ - -} - -/** Send a neighbor solicitation message for a specific neighbor cache entry - * - * @param entry the neightbor cache entry for wich to send the message - * @param flags one of ND6_SEND_FLAG_* - */ -static void -nd6_send_neighbor_cache_probe(struct nd6_neighbor_cache_entry *entry, u8_t flags) -{ - nd6_send_ns(entry->netif, &entry->next_hop_address, flags); -} - -/** - * Send a neighbor solicitation message - * - * @param netif the netif on which to send the message - * @param target_addr the IPv6 target address for the ND message - * @param flags one of ND6_SEND_FLAG_* - */ -static void -nd6_send_ns(struct netif *netif, const ip6_addr_t *target_addr, u8_t flags) -{ - struct ns_header *ns_hdr; - struct pbuf *p; - const ip6_addr_t *src_addr; - u16_t lladdr_opt_len; - - LWIP_ASSERT("target address is required", target_addr != NULL); - - if (!(flags & ND6_SEND_FLAG_ANY_SRC) && - ip6_addr_isvalid(netif_ip6_addr_state(netif,0))) { - /* Use link-local address as source address. */ - src_addr = netif_ip6_addr(netif, 0); - /* calculate option length (in 8-byte-blocks) */ - lladdr_opt_len = ((netif->hwaddr_len + 2) + 7) >> 3; - } else { - src_addr = IP6_ADDR_ANY6; - /* Option "MUST NOT be included when the source IP address is the unspecified address." */ - lladdr_opt_len = 0; - } - - /* Allocate a packet. */ - p = pbuf_alloc(PBUF_IP, sizeof(struct ns_header) + (lladdr_opt_len << 3), PBUF_RAM); - if (p == NULL) { - ND6_STATS_INC(nd6.memerr); - return; - } - - /* Set fields. */ - ns_hdr = (struct ns_header *)p->payload; - - ns_hdr->type = ICMP6_TYPE_NS; - ns_hdr->code = 0; - ns_hdr->chksum = 0; - ns_hdr->reserved = 0; - ip6_addr_copy_to_packed(ns_hdr->target_address, *target_addr); - - if (lladdr_opt_len != 0) { - struct lladdr_option *lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct ns_header)); - lladdr_opt->type = ND6_OPTION_TYPE_SOURCE_LLADDR; - lladdr_opt->length = (u8_t)lladdr_opt_len; - SMEMCPY(lladdr_opt->addr, netif->hwaddr, netif->hwaddr_len); - } - - /* Generate the solicited node address for the target address. */ - if (flags & ND6_SEND_FLAG_MULTICAST_DEST) { - ip6_addr_set_solicitednode(&multicast_address, target_addr->addr[3]); - ip6_addr_assign_zone(&multicast_address, IP6_MULTICAST, netif); - target_addr = &multicast_address; - } - -#if CHECKSUM_GEN_ICMP6 - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP6) { - ns_hdr->chksum = ip6_chksum_pseudo(p, IP6_NEXTH_ICMP6, p->len, src_addr, - target_addr); - } -#endif /* CHECKSUM_GEN_ICMP6 */ - - /* Send the packet out. */ - ND6_STATS_INC(nd6.xmit); - ip6_output_if(p, (src_addr == IP6_ADDR_ANY6) ? NULL : src_addr, target_addr, - ND6_HOPLIM, 0, IP6_NEXTH_ICMP6, netif); - pbuf_free(p); -} - -/** - * Send a neighbor advertisement message - * - * @param netif the netif on which to send the message - * @param target_addr the IPv6 target address for the ND message - * @param flags one of ND6_SEND_FLAG_* - */ -static void -nd6_send_na(struct netif *netif, const ip6_addr_t *target_addr, u8_t flags) -{ - struct na_header *na_hdr; - struct lladdr_option *lladdr_opt; - struct pbuf *p; - const ip6_addr_t *src_addr; - const ip6_addr_t *dest_addr; - u16_t lladdr_opt_len; - - LWIP_ASSERT("target address is required", target_addr != NULL); - - /* Use link-local address as source address. */ - /* src_addr = netif_ip6_addr(netif, 0); */ - /* Use target address as source address. */ - src_addr = target_addr; - - /* Allocate a packet. */ - lladdr_opt_len = ((netif->hwaddr_len + 2) >> 3) + (((netif->hwaddr_len + 2) & 0x07) ? 1 : 0); - p = pbuf_alloc(PBUF_IP, sizeof(struct na_header) + (lladdr_opt_len << 3), PBUF_RAM); - if (p == NULL) { - ND6_STATS_INC(nd6.memerr); - return; - } - - /* Set fields. */ - na_hdr = (struct na_header *)p->payload; - lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct na_header)); - - na_hdr->type = ICMP6_TYPE_NA; - na_hdr->code = 0; - na_hdr->chksum = 0; - na_hdr->flags = flags & 0xf0; - na_hdr->reserved[0] = 0; - na_hdr->reserved[1] = 0; - na_hdr->reserved[2] = 0; - ip6_addr_copy_to_packed(na_hdr->target_address, *target_addr); - - lladdr_opt->type = ND6_OPTION_TYPE_TARGET_LLADDR; - lladdr_opt->length = (u8_t)lladdr_opt_len; - SMEMCPY(lladdr_opt->addr, netif->hwaddr, netif->hwaddr_len); - - /* Generate the solicited node address for the target address. */ - if (flags & ND6_SEND_FLAG_MULTICAST_DEST) { - ip6_addr_set_solicitednode(&multicast_address, target_addr->addr[3]); - ip6_addr_assign_zone(&multicast_address, IP6_MULTICAST, netif); - dest_addr = &multicast_address; - } else if (flags & ND6_SEND_FLAG_ALLNODES_DEST) { - ip6_addr_set_allnodes_linklocal(&multicast_address); - ip6_addr_assign_zone(&multicast_address, IP6_MULTICAST, netif); - dest_addr = &multicast_address; - } else { - dest_addr = ip6_current_src_addr(); - } - -#if CHECKSUM_GEN_ICMP6 - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP6) { - na_hdr->chksum = ip6_chksum_pseudo(p, IP6_NEXTH_ICMP6, p->len, src_addr, - dest_addr); - } -#endif /* CHECKSUM_GEN_ICMP6 */ - - /* Send the packet out. */ - ND6_STATS_INC(nd6.xmit); - ip6_output_if(p, src_addr, dest_addr, - ND6_HOPLIM, 0, IP6_NEXTH_ICMP6, netif); - pbuf_free(p); -} - -#if LWIP_IPV6_SEND_ROUTER_SOLICIT -/** - * Send a router solicitation message - * - * @param netif the netif on which to send the message - */ -static err_t -nd6_send_rs(struct netif *netif) -{ - struct rs_header *rs_hdr; - struct lladdr_option *lladdr_opt; - struct pbuf *p; - const ip6_addr_t *src_addr; - err_t err; - u16_t lladdr_opt_len = 0; - - /* Link-local source address, or unspecified address? */ - if (ip6_addr_isvalid(netif_ip6_addr_state(netif, 0))) { - src_addr = netif_ip6_addr(netif, 0); - } else { - src_addr = IP6_ADDR_ANY6; - } - - /* Generate the all routers target address. */ - ip6_addr_set_allrouters_linklocal(&multicast_address); - ip6_addr_assign_zone(&multicast_address, IP6_MULTICAST, netif); - - /* Allocate a packet. */ - if (src_addr != IP6_ADDR_ANY6) { - lladdr_opt_len = ((netif->hwaddr_len + 2) >> 3) + (((netif->hwaddr_len + 2) & 0x07) ? 1 : 0); - } - p = pbuf_alloc(PBUF_IP, sizeof(struct rs_header) + (lladdr_opt_len << 3), PBUF_RAM); - if (p == NULL) { - ND6_STATS_INC(nd6.memerr); - return ERR_BUF; - } - - /* Set fields. */ - rs_hdr = (struct rs_header *)p->payload; - - rs_hdr->type = ICMP6_TYPE_RS; - rs_hdr->code = 0; - rs_hdr->chksum = 0; - rs_hdr->reserved = 0; - - if (src_addr != IP6_ADDR_ANY6) { - /* Include our hw address. */ - lladdr_opt = (struct lladdr_option *)((u8_t*)p->payload + sizeof(struct rs_header)); - lladdr_opt->type = ND6_OPTION_TYPE_SOURCE_LLADDR; - lladdr_opt->length = (u8_t)lladdr_opt_len; - SMEMCPY(lladdr_opt->addr, netif->hwaddr, netif->hwaddr_len); - } - -#if CHECKSUM_GEN_ICMP6 - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_ICMP6) { - rs_hdr->chksum = ip6_chksum_pseudo(p, IP6_NEXTH_ICMP6, p->len, src_addr, - &multicast_address); - } -#endif /* CHECKSUM_GEN_ICMP6 */ - - /* Send the packet out. */ - ND6_STATS_INC(nd6.xmit); - - err = ip6_output_if(p, (src_addr == IP6_ADDR_ANY6) ? NULL : src_addr, &multicast_address, - ND6_HOPLIM, 0, IP6_NEXTH_ICMP6, netif); - pbuf_free(p); - - return err; -} -#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ - -/** - * Search for a neighbor cache entry - * - * @param ip6addr the IPv6 address of the neighbor - * @return The neighbor cache entry index that matched, -1 if no - * entry is found - */ -static s8_t -nd6_find_neighbor_cache_entry(const ip6_addr_t *ip6addr) -{ - s8_t i; - for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { - if (ip6_addr_cmp(ip6addr, &(neighbor_cache[i].next_hop_address))) { - return i; - } - } - return -1; -} - -/** - * Create a new neighbor cache entry. - * - * If no unused entry is found, will try to recycle an old entry - * according to ad-hoc "age" heuristic. - * - * @return The neighbor cache entry index that was created, -1 if no - * entry could be created - */ -static s8_t -nd6_new_neighbor_cache_entry(void) -{ - s8_t i; - s8_t j; - u32_t time; - - - /* First, try to find an empty entry. */ - for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { - if (neighbor_cache[i].state == ND6_NO_ENTRY) { - return i; - } - } - - /* We need to recycle an entry. in general, do not recycle if it is a router. */ - - /* Next, try to find a Stale entry. */ - for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { - if ((neighbor_cache[i].state == ND6_STALE) && - (!neighbor_cache[i].isrouter)) { - nd6_free_neighbor_cache_entry(i); - return i; - } - } - - /* Next, try to find a Probe entry. */ - for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { - if ((neighbor_cache[i].state == ND6_PROBE) && - (!neighbor_cache[i].isrouter)) { - nd6_free_neighbor_cache_entry(i); - return i; - } - } - - /* Next, try to find a Delayed entry. */ - for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { - if ((neighbor_cache[i].state == ND6_DELAY) && - (!neighbor_cache[i].isrouter)) { - nd6_free_neighbor_cache_entry(i); - return i; - } - } - - /* Next, try to find the oldest reachable entry. */ - time = 0xfffffffful; - j = -1; - for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { - if ((neighbor_cache[i].state == ND6_REACHABLE) && - (!neighbor_cache[i].isrouter)) { - if (neighbor_cache[i].counter.reachable_time < time) { - j = i; - time = neighbor_cache[i].counter.reachable_time; - } - } - } - if (j >= 0) { - nd6_free_neighbor_cache_entry(j); - return j; - } - - /* Next, find oldest incomplete entry without queued packets. */ - time = 0; - j = -1; - for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { - if ( - (neighbor_cache[i].q == NULL) && - (neighbor_cache[i].state == ND6_INCOMPLETE) && - (!neighbor_cache[i].isrouter)) { - if (neighbor_cache[i].counter.probes_sent >= time) { - j = i; - time = neighbor_cache[i].counter.probes_sent; - } - } - } - if (j >= 0) { - nd6_free_neighbor_cache_entry(j); - return j; - } - - /* Next, find oldest incomplete entry with queued packets. */ - time = 0; - j = -1; - for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { - if ((neighbor_cache[i].state == ND6_INCOMPLETE) && - (!neighbor_cache[i].isrouter)) { - if (neighbor_cache[i].counter.probes_sent >= time) { - j = i; - time = neighbor_cache[i].counter.probes_sent; - } - } - } - if (j >= 0) { - nd6_free_neighbor_cache_entry(j); - return j; - } - - /* No more entries to try. */ - return -1; -} - -/** - * Will free any resources associated with a neighbor cache - * entry, and will mark it as unused. - * - * @param i the neighbor cache entry index to free - */ -static void -nd6_free_neighbor_cache_entry(s8_t i) -{ - if ((i < 0) || (i >= LWIP_ND6_NUM_NEIGHBORS)) { - return; - } - if (neighbor_cache[i].isrouter) { - /* isrouter needs to be cleared before deleting a neighbor cache entry */ - return; - } - - /* Free any queued packets. */ - if (neighbor_cache[i].q != NULL) { - nd6_free_q(neighbor_cache[i].q); - neighbor_cache[i].q = NULL; - } - - neighbor_cache[i].state = ND6_NO_ENTRY; - neighbor_cache[i].isrouter = 0; - neighbor_cache[i].netif = NULL; - neighbor_cache[i].counter.reachable_time = 0; - ip6_addr_set_zero(&(neighbor_cache[i].next_hop_address)); -} - -/** - * Search for a destination cache entry - * - * @param ip6addr the IPv6 address of the destination - * @return The destination cache entry index that matched, -1 if no - * entry is found - */ -static s16_t -nd6_find_destination_cache_entry(const ip6_addr_t *ip6addr) -{ - s16_t i; - - IP6_ADDR_ZONECHECK(ip6addr); - - for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) { - if (ip6_addr_cmp(ip6addr, &(destination_cache[i].destination_addr))) { - return i; - } - } - return -1; -} - -/** - * Create a new destination cache entry. If no unused entry is found, - * will recycle oldest entry. - * - * @return The destination cache entry index that was created, -1 if no - * entry was created - */ -static s16_t -nd6_new_destination_cache_entry(void) -{ - s16_t i, j; - u32_t age; - - /* Find an empty entry. */ - for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) { - if (ip6_addr_isany(&(destination_cache[i].destination_addr))) { - return i; - } - } - - /* Find oldest entry. */ - age = 0; - j = LWIP_ND6_NUM_DESTINATIONS - 1; - for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) { - if (destination_cache[i].age > age) { - j = i; - } - } - - return j; -} - -/** - * Clear the destination cache. - * - * This operation may be necessary for consistency in the light of changing - * local addresses and/or use of the gateway hook. - */ -void -nd6_clear_destination_cache(void) -{ - int i; - - for (i = 0; i < LWIP_ND6_NUM_DESTINATIONS; i++) { - ip6_addr_set_any(&destination_cache[i].destination_addr); - } -} - -/** - * Determine whether an address matches an on-link prefix or the subnet of a - * statically assigned address. - * - * @param ip6addr the IPv6 address to match - * @return 1 if the address is on-link, 0 otherwise - */ -static int -nd6_is_prefix_in_netif(const ip6_addr_t *ip6addr, struct netif *netif) -{ - s8_t i; - - /* Check to see if the address matches an on-link prefix. */ - for (i = 0; i < LWIP_ND6_NUM_PREFIXES; i++) { - if ((prefix_list[i].netif == netif) && - (prefix_list[i].invalidation_timer > 0) && - ip6_addr_netcmp(ip6addr, &(prefix_list[i].prefix))) { - return 1; - } - } - /* Check to see if address prefix matches a manually configured (= static) - * address. Static addresses have an implied /64 subnet assignment. Dynamic - * addresses (from autoconfiguration) have no implied subnet assignment, and - * are thus effectively /128 assignments. See RFC 5942 for more on this. */ - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i)) && - netif_ip6_addr_isstatic(netif, i) && - ip6_addr_netcmp(ip6addr, netif_ip6_addr(netif, i))) { - return 1; - } - } - return 0; -} - -/** - * Select a default router for a destination. - * - * This function is used both for routing and for finding a next-hop target for - * a packet. In the former case, the given netif is NULL, and the returned - * router entry must be for a netif suitable for sending packets (up, link up). - * In the latter case, the given netif is not NULL and restricts router choice. - * - * @param ip6addr the destination address - * @param netif the netif for the outgoing packet, if known - * @return the default router entry index, or -1 if no suitable - * router is found - */ -static s8_t -nd6_select_router(const ip6_addr_t *ip6addr, struct netif *netif) -{ - struct netif *router_netif; - s8_t i, j, valid_router; - static s8_t last_router; - - LWIP_UNUSED_ARG(ip6addr); /* @todo match preferred routes!! (must implement ND6_OPTION_TYPE_ROUTE_INFO) */ - - /* @todo: implement default router preference */ - - /* Look for valid routers. A reachable router is preferred. */ - valid_router = -1; - for (i = 0; i < LWIP_ND6_NUM_ROUTERS; i++) { - /* Is the router netif both set and apppropriate? */ - if (default_router_list[i].neighbor_entry != NULL) { - router_netif = default_router_list[i].neighbor_entry->netif; - if ((router_netif != NULL) && (netif != NULL ? netif == router_netif : - (netif_is_up(router_netif) && netif_is_link_up(router_netif)))) { - /* Is the router valid, i.e., reachable or probably reachable as per - * RFC 4861 Sec. 6.3.6? Note that we will never return a router that - * has no neighbor cache entry, due to the netif association tests. */ - if (default_router_list[i].neighbor_entry->state != ND6_INCOMPLETE) { - /* Is the router known to be reachable? */ - if (default_router_list[i].neighbor_entry->state == ND6_REACHABLE) { - return i; /* valid and reachable - done! */ - } else if (valid_router < 0) { - valid_router = i; /* valid but not known to be reachable */ - } - } - } - } - } - if (valid_router >= 0) { - return valid_router; - } - - /* Look for any router for which we have any information at all. */ - /* last_router is used for round-robin selection of incomplete routers, as - * recommended in RFC 4861 Sec. 6.3.6 point (2). Advance only when picking a - * route, to select the same router as next-hop target in the common case. */ - if ((netif == NULL) && (++last_router >= LWIP_ND6_NUM_ROUTERS)) { - last_router = 0; - } - i = last_router; - for (j = 0; j < LWIP_ND6_NUM_ROUTERS; j++) { - if (default_router_list[i].neighbor_entry != NULL) { - router_netif = default_router_list[i].neighbor_entry->netif; - if ((router_netif != NULL) && (netif != NULL ? netif == router_netif : - (netif_is_up(router_netif) && netif_is_link_up(router_netif)))) { - return i; - } - } - if (++i >= LWIP_ND6_NUM_ROUTERS) { - i = 0; - } - } - - /* no suitable router found. */ - return -1; -} - -/** - * Find a router-announced route to the given destination. This route may be - * based on an on-link prefix or a default router. - * - * If a suitable route is found, the returned netif is guaranteed to be in a - * suitable state (up, link up) to be used for packet transmission. - * - * @param ip6addr the destination IPv6 address - * @return the netif to use for the destination, or NULL if none found - */ -struct netif * -nd6_find_route(const ip6_addr_t *ip6addr) -{ - struct netif *netif; - s8_t i; - - /* @todo decide if it makes sense to check the destination cache first */ - - /* Check if there is a matching on-link prefix. There may be multiple - * matches. Pick the first one that is associated with a suitable netif. */ - for (i = 0; i < LWIP_ND6_NUM_PREFIXES; ++i) { - netif = prefix_list[i].netif; - if ((netif != NULL) && ip6_addr_netcmp(&prefix_list[i].prefix, ip6addr) && - netif_is_up(netif) && netif_is_link_up(netif)) { - return netif; - } - } - - /* No on-link prefix match. Find a router that can forward the packet. */ - i = nd6_select_router(ip6addr, NULL); - if (i >= 0) { - LWIP_ASSERT("selected router must have a neighbor entry", - default_router_list[i].neighbor_entry != NULL); - return default_router_list[i].neighbor_entry->netif; - } - - return NULL; -} - -/** - * Find an entry for a default router. - * - * @param router_addr the IPv6 address of the router - * @param netif the netif on which the router is found, if known - * @return the index of the router entry, or -1 if not found - */ -static s8_t -nd6_get_router(const ip6_addr_t *router_addr, struct netif *netif) -{ - s8_t i; - - IP6_ADDR_ZONECHECK_NETIF(router_addr, netif); - - /* Look for router. */ - for (i = 0; i < LWIP_ND6_NUM_ROUTERS; i++) { - if ((default_router_list[i].neighbor_entry != NULL) && - ((netif != NULL) ? netif == default_router_list[i].neighbor_entry->netif : 1) && - ip6_addr_cmp(router_addr, &(default_router_list[i].neighbor_entry->next_hop_address))) { - return i; - } - } - - /* router not found. */ - return -1; -} - -/** - * Create a new entry for a default router. - * - * @param router_addr the IPv6 address of the router - * @param netif the netif on which the router is connected, if known - * @return the index on the router table, or -1 if could not be created - */ -static s8_t -nd6_new_router(const ip6_addr_t *router_addr, struct netif *netif) -{ - s8_t router_index; - s8_t free_router_index; - s8_t neighbor_index; - - IP6_ADDR_ZONECHECK_NETIF(router_addr, netif); - - /* Do we have a neighbor entry for this router? */ - neighbor_index = nd6_find_neighbor_cache_entry(router_addr); - if (neighbor_index < 0) { - /* Create a neighbor entry for this router. */ - neighbor_index = nd6_new_neighbor_cache_entry(); - if (neighbor_index < 0) { - /* Could not create neighbor entry for this router. */ - return -1; - } - ip6_addr_set(&(neighbor_cache[neighbor_index].next_hop_address), router_addr); - neighbor_cache[neighbor_index].netif = netif; - neighbor_cache[neighbor_index].q = NULL; - neighbor_cache[neighbor_index].state = ND6_INCOMPLETE; - neighbor_cache[neighbor_index].counter.probes_sent = 1; - nd6_send_neighbor_cache_probe(&neighbor_cache[neighbor_index], ND6_SEND_FLAG_MULTICAST_DEST); - } - - /* Mark neighbor as router. */ - neighbor_cache[neighbor_index].isrouter = 1; - - /* Look for empty entry. */ - free_router_index = LWIP_ND6_NUM_ROUTERS; - for (router_index = LWIP_ND6_NUM_ROUTERS - 1; router_index >= 0; router_index--) { - /* check if router already exists (this is a special case for 2 netifs on the same subnet - - e.g. wifi and cable) */ - if(default_router_list[router_index].neighbor_entry == &(neighbor_cache[neighbor_index])){ - return router_index; - } - if (default_router_list[router_index].neighbor_entry == NULL) { - /* remember lowest free index to create a new entry */ - free_router_index = router_index; - } - } - if (free_router_index < LWIP_ND6_NUM_ROUTERS) { - default_router_list[free_router_index].neighbor_entry = &(neighbor_cache[neighbor_index]); - return free_router_index; - } - - /* Could not create a router entry. */ - - /* Mark neighbor entry as not-router. Entry might be useful as neighbor still. */ - neighbor_cache[neighbor_index].isrouter = 0; - - /* router not found. */ - return -1; -} - -/** - * Find the cached entry for an on-link prefix. - * - * @param prefix the IPv6 prefix that is on-link - * @param netif the netif on which the prefix is on-link - * @return the index on the prefix table, or -1 if not found - */ -static s8_t -nd6_get_onlink_prefix(const ip6_addr_t *prefix, struct netif *netif) -{ - s8_t i; - - /* Look for prefix in list. */ - for (i = 0; i < LWIP_ND6_NUM_PREFIXES; ++i) { - if ((ip6_addr_netcmp(&(prefix_list[i].prefix), prefix)) && - (prefix_list[i].netif == netif)) { - return i; - } - } - - /* Entry not available. */ - return -1; -} - -/** - * Creates a new entry for an on-link prefix. - * - * @param prefix the IPv6 prefix that is on-link - * @param netif the netif on which the prefix is on-link - * @return the index on the prefix table, or -1 if not created - */ -static s8_t -nd6_new_onlink_prefix(const ip6_addr_t *prefix, struct netif *netif) -{ - s8_t i; - - /* Create new entry. */ - for (i = 0; i < LWIP_ND6_NUM_PREFIXES; ++i) { - if ((prefix_list[i].netif == NULL) || - (prefix_list[i].invalidation_timer == 0)) { - /* Found empty prefix entry. */ - prefix_list[i].netif = netif; - ip6_addr_set(&(prefix_list[i].prefix), prefix); - return i; - } - } - - /* Entry not available. */ - return -1; -} - -/** - * Determine the next hop for a destination. Will determine if the - * destination is on-link, else a suitable on-link router is selected. - * - * The last entry index is cached for fast entry search. - * - * @param ip6addr the destination address - * @param netif the netif on which the packet will be sent - * @return the neighbor cache entry for the next hop, ERR_RTE if no - * suitable next hop was found, ERR_MEM if no cache entry - * could be created - */ -static s8_t -nd6_get_next_hop_entry(const ip6_addr_t *ip6addr, struct netif *netif) -{ -#ifdef LWIP_HOOK_ND6_GET_GW - const ip6_addr_t *next_hop_addr; -#endif /* LWIP_HOOK_ND6_GET_GW */ - s8_t i; - s16_t dst_idx; - - IP6_ADDR_ZONECHECK_NETIF(ip6addr, netif); - -#if LWIP_NETIF_HWADDRHINT - if (netif->hints != NULL) { - /* per-pcb cached entry was given */ - netif_addr_idx_t addr_hint = netif->hints->addr_hint; - if (addr_hint < LWIP_ND6_NUM_DESTINATIONS) { - nd6_cached_destination_index = addr_hint; - } - } -#endif /* LWIP_NETIF_HWADDRHINT */ - - /* Look for ip6addr in destination cache. */ - if (ip6_addr_cmp(ip6addr, &(destination_cache[nd6_cached_destination_index].destination_addr))) { - /* the cached entry index is the right one! */ - /* do nothing. */ - ND6_STATS_INC(nd6.cachehit); - } else { - /* Search destination cache. */ - dst_idx = nd6_find_destination_cache_entry(ip6addr); - if (dst_idx >= 0) { - /* found destination entry. make it our new cached index. */ - LWIP_ASSERT("type overflow", (size_t)dst_idx < NETIF_ADDR_IDX_MAX); - nd6_cached_destination_index = (netif_addr_idx_t)dst_idx; - } else { - /* Not found. Create a new destination entry. */ - dst_idx = nd6_new_destination_cache_entry(); - if (dst_idx >= 0) { - /* got new destination entry. make it our new cached index. */ - LWIP_ASSERT("type overflow", (size_t)dst_idx < NETIF_ADDR_IDX_MAX); - nd6_cached_destination_index = (netif_addr_idx_t)dst_idx; - } else { - /* Could not create a destination cache entry. */ - return ERR_MEM; - } - - /* Copy dest address to destination cache. */ - ip6_addr_set(&(destination_cache[nd6_cached_destination_index].destination_addr), ip6addr); - - /* Now find the next hop. is it a neighbor? */ - if (ip6_addr_islinklocal(ip6addr) || - nd6_is_prefix_in_netif(ip6addr, netif)) { - /* Destination in local link. */ - destination_cache[nd6_cached_destination_index].pmtu = netif_mtu6(netif); - ip6_addr_copy(destination_cache[nd6_cached_destination_index].next_hop_addr, destination_cache[nd6_cached_destination_index].destination_addr); -#ifdef LWIP_HOOK_ND6_GET_GW - } else if ((next_hop_addr = LWIP_HOOK_ND6_GET_GW(netif, ip6addr)) != NULL) { - /* Next hop for destination provided by hook function. */ - destination_cache[nd6_cached_destination_index].pmtu = netif->mtu; - ip6_addr_set(&destination_cache[nd6_cached_destination_index].next_hop_addr, next_hop_addr); -#endif /* LWIP_HOOK_ND6_GET_GW */ - } else { - /* We need to select a router. */ - i = nd6_select_router(ip6addr, netif); - if (i < 0) { - /* No router found. */ - ip6_addr_set_any(&(destination_cache[nd6_cached_destination_index].destination_addr)); - return ERR_RTE; - } - destination_cache[nd6_cached_destination_index].pmtu = netif_mtu6(netif); /* Start with netif mtu, correct through ICMPv6 if necessary */ - ip6_addr_copy(destination_cache[nd6_cached_destination_index].next_hop_addr, default_router_list[i].neighbor_entry->next_hop_address); - } - } - } - -#if LWIP_NETIF_HWADDRHINT - if (netif->hints != NULL) { - /* per-pcb cached entry was given */ - netif->hints->addr_hint = nd6_cached_destination_index; - } -#endif /* LWIP_NETIF_HWADDRHINT */ - - /* Look in neighbor cache for the next-hop address. */ - if (ip6_addr_cmp(&(destination_cache[nd6_cached_destination_index].next_hop_addr), - &(neighbor_cache[nd6_cached_neighbor_index].next_hop_address))) { - /* Cache hit. */ - /* Do nothing. */ - ND6_STATS_INC(nd6.cachehit); - } else { - i = nd6_find_neighbor_cache_entry(&(destination_cache[nd6_cached_destination_index].next_hop_addr)); - if (i >= 0) { - /* Found a matching record, make it new cached entry. */ - nd6_cached_neighbor_index = i; - } else { - /* Neighbor not in cache. Make a new entry. */ - i = nd6_new_neighbor_cache_entry(); - if (i >= 0) { - /* got new neighbor entry. make it our new cached index. */ - nd6_cached_neighbor_index = i; - } else { - /* Could not create a neighbor cache entry. */ - return ERR_MEM; - } - - /* Initialize fields. */ - ip6_addr_copy(neighbor_cache[i].next_hop_address, - destination_cache[nd6_cached_destination_index].next_hop_addr); - neighbor_cache[i].isrouter = 0; - neighbor_cache[i].netif = netif; - neighbor_cache[i].state = ND6_INCOMPLETE; - neighbor_cache[i].counter.probes_sent = 1; - nd6_send_neighbor_cache_probe(&neighbor_cache[i], ND6_SEND_FLAG_MULTICAST_DEST); - } - } - - /* Reset this destination's age. */ - destination_cache[nd6_cached_destination_index].age = 0; - - return nd6_cached_neighbor_index; -} - -/** - * Queue a packet for a neighbor. - * - * @param neighbor_index the index in the neighbor cache table - * @param q packet to be queued - * @return ERR_OK if succeeded, ERR_MEM if out of memory - */ -static err_t -nd6_queue_packet(s8_t neighbor_index, struct pbuf *q) -{ - err_t result = ERR_MEM; - struct pbuf *p; - int copy_needed = 0; -#if LWIP_ND6_QUEUEING - struct nd6_q_entry *new_entry, *r; -#endif /* LWIP_ND6_QUEUEING */ - - if ((neighbor_index < 0) || (neighbor_index >= LWIP_ND6_NUM_NEIGHBORS)) { - return ERR_ARG; - } - - /* IF q includes a pbuf that must be copied, we have to copy the whole chain - * into a new PBUF_RAM. See the definition of PBUF_NEEDS_COPY for details. */ - p = q; - while (p) { - if (PBUF_NEEDS_COPY(p)) { - copy_needed = 1; - break; - } - p = p->next; - } - if (copy_needed) { - /* copy the whole packet into new pbufs */ - p = pbuf_clone(PBUF_LINK, PBUF_RAM, q); - while ((p == NULL) && (neighbor_cache[neighbor_index].q != NULL)) { - /* Free oldest packet (as per RFC recommendation) */ -#if LWIP_ND6_QUEUEING - r = neighbor_cache[neighbor_index].q; - neighbor_cache[neighbor_index].q = r->next; - r->next = NULL; - nd6_free_q(r); -#else /* LWIP_ND6_QUEUEING */ - pbuf_free(neighbor_cache[neighbor_index].q); - neighbor_cache[neighbor_index].q = NULL; -#endif /* LWIP_ND6_QUEUEING */ - p = pbuf_clone(PBUF_LINK, PBUF_RAM, q); - } - } else { - /* referencing the old pbuf is enough */ - p = q; - pbuf_ref(p); - } - /* packet was copied/ref'd? */ - if (p != NULL) { - /* queue packet ... */ -#if LWIP_ND6_QUEUEING - /* allocate a new nd6 queue entry */ - new_entry = (struct nd6_q_entry *)memp_malloc(MEMP_ND6_QUEUE); - if ((new_entry == NULL) && (neighbor_cache[neighbor_index].q != NULL)) { - /* Free oldest packet (as per RFC recommendation) */ - r = neighbor_cache[neighbor_index].q; - neighbor_cache[neighbor_index].q = r->next; - r->next = NULL; - nd6_free_q(r); - new_entry = (struct nd6_q_entry *)memp_malloc(MEMP_ND6_QUEUE); - } - if (new_entry != NULL) { - new_entry->next = NULL; - new_entry->p = p; - if (neighbor_cache[neighbor_index].q != NULL) { - /* queue was already existent, append the new entry to the end */ - r = neighbor_cache[neighbor_index].q; - while (r->next != NULL) { - r = r->next; - } - r->next = new_entry; - } else { - /* queue did not exist, first item in queue */ - neighbor_cache[neighbor_index].q = new_entry; - } - LWIP_DEBUGF(LWIP_DBG_TRACE, ("ipv6: queued packet %p on neighbor entry %"S16_F"\n", (void *)p, (s16_t)neighbor_index)); - result = ERR_OK; - } else { - /* the pool MEMP_ND6_QUEUE is empty */ - pbuf_free(p); - LWIP_DEBUGF(LWIP_DBG_TRACE, ("ipv6: could not queue a copy of packet %p (out of memory)\n", (void *)p)); - /* { result == ERR_MEM } through initialization */ - } -#else /* LWIP_ND6_QUEUEING */ - /* Queue a single packet. If an older packet is already queued, free it as per RFC. */ - if (neighbor_cache[neighbor_index].q != NULL) { - pbuf_free(neighbor_cache[neighbor_index].q); - } - neighbor_cache[neighbor_index].q = p; - LWIP_DEBUGF(LWIP_DBG_TRACE, ("ipv6: queued packet %p on neighbor entry %"S16_F"\n", (void *)p, (s16_t)neighbor_index)); - result = ERR_OK; -#endif /* LWIP_ND6_QUEUEING */ - } else { - LWIP_DEBUGF(LWIP_DBG_TRACE, ("ipv6: could not queue a copy of packet %p (out of memory)\n", (void *)q)); - /* { result == ERR_MEM } through initialization */ - } - - return result; -} - -#if LWIP_ND6_QUEUEING -/** - * Free a complete queue of nd6 q entries - * - * @param q a queue of nd6_q_entry to free - */ -static void -nd6_free_q(struct nd6_q_entry *q) -{ - struct nd6_q_entry *r; - LWIP_ASSERT("q != NULL", q != NULL); - LWIP_ASSERT("q->p != NULL", q->p != NULL); - while (q) { - r = q; - q = q->next; - LWIP_ASSERT("r->p != NULL", (r->p != NULL)); - pbuf_free(r->p); - memp_free(MEMP_ND6_QUEUE, r); - } -} -#endif /* LWIP_ND6_QUEUEING */ - -/** - * Send queued packets for a neighbor - * - * @param i the neighbor to send packets to - */ -static void -nd6_send_q(s8_t i) -{ - struct ip6_hdr *ip6hdr; - ip6_addr_t dest; -#if LWIP_ND6_QUEUEING - struct nd6_q_entry *q; -#endif /* LWIP_ND6_QUEUEING */ - - if ((i < 0) || (i >= LWIP_ND6_NUM_NEIGHBORS)) { - return; - } - -#if LWIP_ND6_QUEUEING - while (neighbor_cache[i].q != NULL) { - /* remember first in queue */ - q = neighbor_cache[i].q; - /* pop first item off the queue */ - neighbor_cache[i].q = q->next; - /* Get ipv6 header. */ - ip6hdr = (struct ip6_hdr *)(q->p->payload); - /* Create an aligned copy. */ - ip6_addr_copy_from_packed(dest, ip6hdr->dest); - /* Restore the zone, if applicable. */ - ip6_addr_assign_zone(&dest, IP6_UNKNOWN, neighbor_cache[i].netif); - /* send the queued IPv6 packet */ - (neighbor_cache[i].netif)->output_ip6(neighbor_cache[i].netif, q->p, &dest); - /* free the queued IP packet */ - pbuf_free(q->p); - /* now queue entry can be freed */ - memp_free(MEMP_ND6_QUEUE, q); - } -#else /* LWIP_ND6_QUEUEING */ - if (neighbor_cache[i].q != NULL) { - /* Get ipv6 header. */ - ip6hdr = (struct ip6_hdr *)(neighbor_cache[i].q->payload); - /* Create an aligned copy. */ - ip6_addr_copy_from_packed(dest, ip6hdr->dest); - /* Restore the zone, if applicable. */ - ip6_addr_assign_zone(&dest, IP6_UNKNOWN, neighbor_cache[i].netif); - /* send the queued IPv6 packet */ - (neighbor_cache[i].netif)->output_ip6(neighbor_cache[i].netif, neighbor_cache[i].q, &dest); - /* free the queued IP packet */ - pbuf_free(neighbor_cache[i].q); - neighbor_cache[i].q = NULL; - } -#endif /* LWIP_ND6_QUEUEING */ -} - -/** - * A packet is to be transmitted to a specific IPv6 destination on a specific - * interface. Check if we can find the hardware address of the next hop to use - * for the packet. If so, give the hardware address to the caller, which should - * use it to send the packet right away. Otherwise, enqueue the packet for - * later transmission while looking up the hardware address, if possible. - * - * As such, this function returns one of three different possible results: - * - * - ERR_OK with a non-NULL 'hwaddrp': the caller should send the packet now. - * - ERR_OK with a NULL 'hwaddrp': the packet has been enqueued for later. - * - not ERR_OK: something went wrong; forward the error upward in the stack. - * - * @param netif The lwIP network interface on which the IP packet will be sent. - * @param q The pbuf(s) containing the IP packet to be sent. - * @param ip6addr The destination IPv6 address of the packet. - * @param hwaddrp On success, filled with a pointer to a HW address or NULL (meaning - * the packet has been queued). - * @return - * - ERR_OK on success, ERR_RTE if no route was found for the packet, - * or ERR_MEM if low memory conditions prohibit sending the packet at all. - */ -err_t -nd6_get_next_hop_addr_or_queue(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr, const u8_t **hwaddrp) -{ - s8_t i; - - /* Get next hop record. */ - i = nd6_get_next_hop_entry(ip6addr, netif); - if (i < 0) { - /* failed to get a next hop neighbor record. */ - return i; - } - - /* Now that we have a destination record, send or queue the packet. */ - if (neighbor_cache[i].state == ND6_STALE) { - /* Switch to delay state. */ - neighbor_cache[i].state = ND6_DELAY; - neighbor_cache[i].counter.delay_time = LWIP_ND6_DELAY_FIRST_PROBE_TIME / ND6_TMR_INTERVAL; - } - /* @todo should we send or queue if PROBE? send for now, to let unicast NS pass. */ - if ((neighbor_cache[i].state == ND6_REACHABLE) || - (neighbor_cache[i].state == ND6_DELAY) || - (neighbor_cache[i].state == ND6_PROBE)) { - - /* Tell the caller to send out the packet now. */ - *hwaddrp = neighbor_cache[i].lladdr; - return ERR_OK; - } - - /* We should queue packet on this interface. */ - *hwaddrp = NULL; - return nd6_queue_packet(i, q); -} - - -/** - * Get the Path MTU for a destination. - * - * @param ip6addr the destination address - * @param netif the netif on which the packet will be sent - * @return the Path MTU, if known, or the netif default MTU - */ -u16_t -nd6_get_destination_mtu(const ip6_addr_t *ip6addr, struct netif *netif) -{ - s16_t i; - - i = nd6_find_destination_cache_entry(ip6addr); - if (i >= 0) { - if (destination_cache[i].pmtu > 0) { - return destination_cache[i].pmtu; - } - } - - if (netif != NULL) { - return netif_mtu6(netif); - } - - return 1280; /* Minimum MTU */ -} - - -#if LWIP_ND6_TCP_REACHABILITY_HINTS -/** - * Provide the Neighbor discovery process with a hint that a - * destination is reachable. Called by tcp_receive when ACKs are - * received or sent (as per RFC). This is useful to avoid sending - * NS messages every 30 seconds. - * - * @param ip6addr the destination address which is know to be reachable - * by an upper layer protocol (TCP) - */ -void -nd6_reachability_hint(const ip6_addr_t *ip6addr) -{ - s8_t i; - s16_t dst_idx; - - /* Find destination in cache. */ - if (ip6_addr_cmp(ip6addr, &(destination_cache[nd6_cached_destination_index].destination_addr))) { - dst_idx = nd6_cached_destination_index; - ND6_STATS_INC(nd6.cachehit); - } else { - dst_idx = nd6_find_destination_cache_entry(ip6addr); - } - if (dst_idx < 0) { - return; - } - - /* Find next hop neighbor in cache. */ - if (ip6_addr_cmp(&(destination_cache[dst_idx].next_hop_addr), &(neighbor_cache[nd6_cached_neighbor_index].next_hop_address))) { - i = nd6_cached_neighbor_index; - ND6_STATS_INC(nd6.cachehit); - } else { - i = nd6_find_neighbor_cache_entry(&(destination_cache[dst_idx].next_hop_addr)); - } - if (i < 0) { - return; - } - - /* For safety: don't set as reachable if we don't have a LL address yet. Misuse protection. */ - if (neighbor_cache[i].state == ND6_INCOMPLETE || neighbor_cache[i].state == ND6_NO_ENTRY) { - return; - } - - /* Set reachability state. */ - neighbor_cache[i].state = ND6_REACHABLE; - neighbor_cache[i].counter.reachable_time = reachable_time; -} -#endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */ - -/** - * Remove all prefix, neighbor_cache and router entries of the specified netif. - * - * @param netif points to a network interface - */ -void -nd6_cleanup_netif(struct netif *netif) -{ - u8_t i; - s8_t router_index; - for (i = 0; i < LWIP_ND6_NUM_PREFIXES; i++) { - if (prefix_list[i].netif == netif) { - prefix_list[i].netif = NULL; - } - } - for (i = 0; i < LWIP_ND6_NUM_NEIGHBORS; i++) { - if (neighbor_cache[i].netif == netif) { - for (router_index = 0; router_index < LWIP_ND6_NUM_ROUTERS; router_index++) { - if (default_router_list[router_index].neighbor_entry == &neighbor_cache[i]) { - default_router_list[router_index].neighbor_entry = NULL; - default_router_list[router_index].flags = 0; - } - } - neighbor_cache[i].isrouter = 0; - nd6_free_neighbor_cache_entry(i); - } - } - /* Clear the destination cache, since many entries may now have become - * invalid for one of several reasons. As destination cache entries have no - * netif association, use a sledgehammer approach (this can be improved). */ - nd6_clear_destination_cache(); -} - -#if LWIP_IPV6_MLD -/** - * The state of a local IPv6 address entry is about to change. If needed, join - * or leave the solicited-node multicast group for the address. - * - * @param netif The netif that owns the address. - * @param addr_idx The index of the address. - * @param new_state The new (IP6_ADDR_) state for the address. - */ -void -nd6_adjust_mld_membership(struct netif *netif, s8_t addr_idx, u8_t new_state) -{ - u8_t old_state, old_member, new_member; - - old_state = netif_ip6_addr_state(netif, addr_idx); - - /* Determine whether we were, and should be, a member of the solicited-node - * multicast group for this address. For tentative addresses, the group is - * not joined until the address enters the TENTATIVE_1 (or VALID) state. */ - old_member = (old_state != IP6_ADDR_INVALID && old_state != IP6_ADDR_DUPLICATED && old_state != IP6_ADDR_TENTATIVE); - new_member = (new_state != IP6_ADDR_INVALID && new_state != IP6_ADDR_DUPLICATED && new_state != IP6_ADDR_TENTATIVE); - - if (old_member != new_member) { - ip6_addr_set_solicitednode(&multicast_address, netif_ip6_addr(netif, addr_idx)->addr[3]); - ip6_addr_assign_zone(&multicast_address, IP6_MULTICAST, netif); - - if (new_member) { - mld6_joingroup_netif(netif, &multicast_address); - } else { - mld6_leavegroup_netif(netif, &multicast_address); - } - } -} -#endif /* LWIP_IPV6_MLD */ - -/** Netif was added, set up, or reconnected (link up) */ -void -nd6_restart_netif(struct netif *netif) -{ -#if LWIP_IPV6_SEND_ROUTER_SOLICIT - /* Send Router Solicitation messages (see RFC 4861, ch. 6.3.7). */ - netif->rs_count = LWIP_ND6_MAX_MULTICAST_SOLICIT; -#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ -} - -#endif /* LWIP_IPV6 */ diff --git a/core/c/core/mem.c b/core/c/core/mem.c deleted file mode 100755 index 16fd984..0000000 --- a/core/c/core/mem.c +++ /dev/null @@ -1,1017 +0,0 @@ -/** - * @file - * Dynamic memory manager - * - * This is a lightweight replacement for the standard C library malloc(). - * - * If you want to use the standard C library malloc() instead, define - * MEM_LIBC_MALLOC to 1 in your lwipopts.h - * - * To let mem_malloc() use pools (prevents fragmentation and is much faster than - * a heap but might waste some memory), define MEM_USE_POOLS to 1, define - * MEMP_USE_CUSTOM_POOLS to 1 and create a file "lwippools.h" that includes a list - * of pools like this (more pools can be added between _START and _END): - * - * Define three pools with sizes 256, 512, and 1512 bytes - * LWIP_MALLOC_MEMPOOL_START - * LWIP_MALLOC_MEMPOOL(20, 256) - * LWIP_MALLOC_MEMPOOL(10, 512) - * LWIP_MALLOC_MEMPOOL(5, 1512) - * LWIP_MALLOC_MEMPOOL_END - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * Simon Goldschmidt - * - */ - -#include "lwip/opt.h" -#include "lwip/mem.h" -#include "lwip/def.h" -#include "lwip/sys.h" -#include "lwip/stats.h" -#include "lwip/err.h" - -#include - -#if MEM_LIBC_MALLOC -#include /* for malloc()/free() */ -#endif - -/* This is overridable for tests only... */ -#ifndef LWIP_MEM_ILLEGAL_FREE -#define LWIP_MEM_ILLEGAL_FREE(msg) LWIP_ASSERT(msg, 0) -#endif - -#define MEM_STATS_INC_LOCKED(x) SYS_ARCH_LOCKED(MEM_STATS_INC(x)) -#define MEM_STATS_INC_USED_LOCKED(x, y) SYS_ARCH_LOCKED(MEM_STATS_INC_USED(x, y)) -#define MEM_STATS_DEC_USED_LOCKED(x, y) SYS_ARCH_LOCKED(MEM_STATS_DEC_USED(x, y)) - -#if MEM_OVERFLOW_CHECK -#define MEM_SANITY_OFFSET MEM_SANITY_REGION_BEFORE_ALIGNED -#define MEM_SANITY_OVERHEAD (MEM_SANITY_REGION_BEFORE_ALIGNED + MEM_SANITY_REGION_AFTER_ALIGNED) -#else -#define MEM_SANITY_OFFSET 0 -#define MEM_SANITY_OVERHEAD 0 -#endif - -#if MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK -/** - * Check if a mep element was victim of an overflow or underflow - * (e.g. the restricted area after/before it has been altered) - * - * @param p the mem element to check - * @param size allocated size of the element - * @param descr1 description of the element source shown on error - * @param descr2 description of the element source shown on error - */ -void -mem_overflow_check_raw(void *p, size_t size, const char *descr1, const char *descr2) -{ -#if MEM_SANITY_REGION_AFTER_ALIGNED || MEM_SANITY_REGION_BEFORE_ALIGNED - u16_t k; - u8_t *m; - -#if MEM_SANITY_REGION_AFTER_ALIGNED > 0 - m = (u8_t *)p + size; - for (k = 0; k < MEM_SANITY_REGION_AFTER_ALIGNED; k++) { - if (m[k] != 0xcd) { - char errstr[128]; - snprintf(errstr, sizeof(errstr), "detected mem overflow in %s%s", descr1, descr2); - LWIP_ASSERT(errstr, 0); - } - } -#endif /* MEM_SANITY_REGION_AFTER_ALIGNED > 0 */ - -#if MEM_SANITY_REGION_BEFORE_ALIGNED > 0 - m = (u8_t *)p - MEM_SANITY_REGION_BEFORE_ALIGNED; - for (k = 0; k < MEM_SANITY_REGION_BEFORE_ALIGNED; k++) { - if (m[k] != 0xcd) { - char errstr[128]; - snprintf(errstr, sizeof(errstr), "detected mem underflow in %s%s", descr1, descr2); - LWIP_ASSERT(errstr, 0); - } - } -#endif /* MEM_SANITY_REGION_BEFORE_ALIGNED > 0 */ -#else - LWIP_UNUSED_ARG(p); - LWIP_UNUSED_ARG(desc); - LWIP_UNUSED_ARG(descr); -#endif -} - -/** - * Initialize the restricted area of a mem element. - */ -void -mem_overflow_init_raw(void *p, size_t size) -{ -#if MEM_SANITY_REGION_BEFORE_ALIGNED > 0 || MEM_SANITY_REGION_AFTER_ALIGNED > 0 - u8_t *m; -#if MEM_SANITY_REGION_BEFORE_ALIGNED > 0 - m = (u8_t *)p - MEM_SANITY_REGION_BEFORE_ALIGNED; - memset(m, 0xcd, MEM_SANITY_REGION_BEFORE_ALIGNED); -#endif -#if MEM_SANITY_REGION_AFTER_ALIGNED > 0 - m = (u8_t *)p + size; - memset(m, 0xcd, MEM_SANITY_REGION_AFTER_ALIGNED); -#endif -#else /* MEM_SANITY_REGION_BEFORE_ALIGNED > 0 || MEM_SANITY_REGION_AFTER_ALIGNED > 0 */ - LWIP_UNUSED_ARG(p); - LWIP_UNUSED_ARG(desc); -#endif /* MEM_SANITY_REGION_BEFORE_ALIGNED > 0 || MEM_SANITY_REGION_AFTER_ALIGNED > 0 */ -} -#endif /* MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK */ - -#if MEM_LIBC_MALLOC || MEM_USE_POOLS - -/** mem_init is not used when using pools instead of a heap or using - * C library malloc(). - */ -void -mem_init(void) -{ -} - -/** mem_trim is not used when using pools instead of a heap or using - * C library malloc(): we can't free part of a pool element and the stack - * support mem_trim() to return a different pointer - */ -void * -mem_trim(void *mem, mem_size_t size) -{ - LWIP_UNUSED_ARG(size); - return mem; -} -#endif /* MEM_LIBC_MALLOC || MEM_USE_POOLS */ - -#if MEM_LIBC_MALLOC -/* lwIP heap implemented using C library malloc() */ - -/* in case C library malloc() needs extra protection, - * allow these defines to be overridden. - */ -#ifndef mem_clib_free -#define mem_clib_free free -#endif -#ifndef mem_clib_malloc -#define mem_clib_malloc malloc -#endif -#ifndef mem_clib_calloc -#define mem_clib_calloc calloc -#endif - -#if LWIP_STATS && MEM_STATS -#define MEM_LIBC_STATSHELPER_SIZE LWIP_MEM_ALIGN_SIZE(sizeof(mem_size_t)) -#else -#define MEM_LIBC_STATSHELPER_SIZE 0 -#endif - -/** - * Allocate a block of memory with a minimum of 'size' bytes. - * - * @param size is the minimum size of the requested block in bytes. - * @return pointer to allocated memory or NULL if no free memory was found. - * - * Note that the returned value must always be aligned (as defined by MEM_ALIGNMENT). - */ -void * -mem_malloc(mem_size_t size) -{ - void *ret = mem_clib_malloc(size + MEM_LIBC_STATSHELPER_SIZE); - if (ret == NULL) { - MEM_STATS_INC_LOCKED(err); - } else { - LWIP_ASSERT("malloc() must return aligned memory", LWIP_MEM_ALIGN(ret) == ret); -#if LWIP_STATS && MEM_STATS - *(mem_size_t *)ret = size; - ret = (u8_t *)ret + MEM_LIBC_STATSHELPER_SIZE; - MEM_STATS_INC_USED_LOCKED(used, size); -#endif - } - return ret; -} - -/** Put memory back on the heap - * - * @param rmem is the pointer as returned by a previous call to mem_malloc() - */ -void -mem_free(void *rmem) -{ - LWIP_ASSERT("rmem != NULL", (rmem != NULL)); - LWIP_ASSERT("rmem == MEM_ALIGN(rmem)", (rmem == LWIP_MEM_ALIGN(rmem))); -#if LWIP_STATS && MEM_STATS - rmem = (u8_t *)rmem - MEM_LIBC_STATSHELPER_SIZE; - MEM_STATS_DEC_USED_LOCKED(used, *(mem_size_t *)rmem); -#endif - mem_clib_free(rmem); -} - -#elif MEM_USE_POOLS - -/* lwIP heap implemented with different sized pools */ - -/** - * Allocate memory: determine the smallest pool that is big enough - * to contain an element of 'size' and get an element from that pool. - * - * @param size the size in bytes of the memory needed - * @return a pointer to the allocated memory or NULL if the pool is empty - */ -void * -mem_malloc(mem_size_t size) -{ - void *ret; - struct memp_malloc_helper *element = NULL; - memp_t poolnr; - mem_size_t required_size = size + LWIP_MEM_ALIGN_SIZE(sizeof(struct memp_malloc_helper)); - - for (poolnr = MEMP_POOL_FIRST; poolnr <= MEMP_POOL_LAST; poolnr = (memp_t)(poolnr + 1)) { - /* is this pool big enough to hold an element of the required size - plus a struct memp_malloc_helper that saves the pool this element came from? */ - if (required_size <= memp_pools[poolnr]->size) { - element = (struct memp_malloc_helper *)memp_malloc(poolnr); - if (element == NULL) { - /* No need to DEBUGF or ASSERT: This error is already taken care of in memp.c */ -#if MEM_USE_POOLS_TRY_BIGGER_POOL - /** Try a bigger pool if this one is empty! */ - if (poolnr < MEMP_POOL_LAST) { - continue; - } -#endif /* MEM_USE_POOLS_TRY_BIGGER_POOL */ - MEM_STATS_INC_LOCKED(err); - return NULL; - } - break; - } - } - if (poolnr > MEMP_POOL_LAST) { - LWIP_ASSERT("mem_malloc(): no pool is that big!", 0); - MEM_STATS_INC_LOCKED(err); - return NULL; - } - - /* save the pool number this element came from */ - element->poolnr = poolnr; - /* and return a pointer to the memory directly after the struct memp_malloc_helper */ - ret = (u8_t *)element + LWIP_MEM_ALIGN_SIZE(sizeof(struct memp_malloc_helper)); - -#if MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS) - /* truncating to u16_t is safe because struct memp_desc::size is u16_t */ - element->size = (u16_t)size; - MEM_STATS_INC_USED_LOCKED(used, element->size); -#endif /* MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS) */ -#if MEMP_OVERFLOW_CHECK - /* initialize unused memory (diff between requested size and selected pool's size) */ - memset((u8_t *)ret + size, 0xcd, memp_pools[poolnr]->size - size); -#endif /* MEMP_OVERFLOW_CHECK */ - return ret; -} - -/** - * Free memory previously allocated by mem_malloc. Loads the pool number - * and calls memp_free with that pool number to put the element back into - * its pool - * - * @param rmem the memory element to free - */ -void -mem_free(void *rmem) -{ - struct memp_malloc_helper *hmem; - - LWIP_ASSERT("rmem != NULL", (rmem != NULL)); - LWIP_ASSERT("rmem == MEM_ALIGN(rmem)", (rmem == LWIP_MEM_ALIGN(rmem))); - - /* get the original struct memp_malloc_helper */ - /* cast through void* to get rid of alignment warnings */ - hmem = (struct memp_malloc_helper *)(void *)((u8_t *)rmem - LWIP_MEM_ALIGN_SIZE(sizeof(struct memp_malloc_helper))); - - LWIP_ASSERT("hmem != NULL", (hmem != NULL)); - LWIP_ASSERT("hmem == MEM_ALIGN(hmem)", (hmem == LWIP_MEM_ALIGN(hmem))); - LWIP_ASSERT("hmem->poolnr < MEMP_MAX", (hmem->poolnr < MEMP_MAX)); - - MEM_STATS_DEC_USED_LOCKED(used, hmem->size); -#if MEMP_OVERFLOW_CHECK - { - u16_t i; - LWIP_ASSERT("MEM_USE_POOLS: invalid chunk size", - hmem->size <= memp_pools[hmem->poolnr]->size); - /* check that unused memory remained untouched (diff between requested size and selected pool's size) */ - for (i = hmem->size; i < memp_pools[hmem->poolnr]->size; i++) { - u8_t data = *((u8_t *)rmem + i); - LWIP_ASSERT("MEM_USE_POOLS: mem overflow detected", data == 0xcd); - } - } -#endif /* MEMP_OVERFLOW_CHECK */ - - /* and put it in the pool we saved earlier */ - memp_free(hmem->poolnr, hmem); -} - -#else /* MEM_USE_POOLS */ -/* lwIP replacement for your libc malloc() */ - -/** - * The heap is made up as a list of structs of this type. - * This does not have to be aligned since for getting its size, - * we only use the macro SIZEOF_STRUCT_MEM, which automatically aligns. - */ -struct mem { - /** index (-> ram[next]) of the next struct */ - mem_size_t next; - /** index (-> ram[prev]) of the previous struct */ - mem_size_t prev; - /** 1: this area is used; 0: this area is unused */ - u8_t used; -#if MEM_OVERFLOW_CHECK - /** this keeps track of the user allocation size for guard checks */ - mem_size_t user_size; -#endif -}; - -/** All allocated blocks will be MIN_SIZE bytes big, at least! - * MIN_SIZE can be overridden to suit your needs. Smaller values save space, - * larger values could prevent too small blocks to fragment the RAM too much. */ -#ifndef MIN_SIZE -#define MIN_SIZE 12 -#endif /* MIN_SIZE */ -/* some alignment macros: we define them here for better source code layout */ -#define MIN_SIZE_ALIGNED LWIP_MEM_ALIGN_SIZE(MIN_SIZE) -#define SIZEOF_STRUCT_MEM LWIP_MEM_ALIGN_SIZE(sizeof(struct mem)) -#define MEM_SIZE_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SIZE) - -/** If you want to relocate the heap to external memory, simply define - * LWIP_RAM_HEAP_POINTER as a void-pointer to that location. - * If so, make sure the memory at that location is big enough (see below on - * how that space is calculated). */ -#ifndef LWIP_RAM_HEAP_POINTER -/** the heap. we need one struct mem at the end and some room for alignment */ -LWIP_DECLARE_MEMORY_ALIGNED(ram_heap, MEM_SIZE_ALIGNED + (2U * SIZEOF_STRUCT_MEM)); -#define LWIP_RAM_HEAP_POINTER ram_heap -#endif /* LWIP_RAM_HEAP_POINTER */ - -/** pointer to the heap (ram_heap): for alignment, ram is now a pointer instead of an array */ -static u8_t *ram; -/** the last entry, always unused! */ -static struct mem *ram_end; - -/** concurrent access protection */ -#if !NO_SYS -static sys_mutex_t mem_mutex; -#endif - -#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT - -static volatile u8_t mem_free_count; - -/* Allow mem_free from other (e.g. interrupt) context */ -#define LWIP_MEM_FREE_DECL_PROTECT() SYS_ARCH_DECL_PROTECT(lev_free) -#define LWIP_MEM_FREE_PROTECT() SYS_ARCH_PROTECT(lev_free) -#define LWIP_MEM_FREE_UNPROTECT() SYS_ARCH_UNPROTECT(lev_free) -#define LWIP_MEM_ALLOC_DECL_PROTECT() SYS_ARCH_DECL_PROTECT(lev_alloc) -#define LWIP_MEM_ALLOC_PROTECT() SYS_ARCH_PROTECT(lev_alloc) -#define LWIP_MEM_ALLOC_UNPROTECT() SYS_ARCH_UNPROTECT(lev_alloc) -#define LWIP_MEM_LFREE_VOLATILE volatile - -#else /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ - -/* Protect the heap only by using a mutex */ -#define LWIP_MEM_FREE_DECL_PROTECT() -#define LWIP_MEM_FREE_PROTECT() sys_mutex_lock(&mem_mutex) -#define LWIP_MEM_FREE_UNPROTECT() sys_mutex_unlock(&mem_mutex) -/* mem_malloc is protected using mutex AND LWIP_MEM_ALLOC_PROTECT */ -#define LWIP_MEM_ALLOC_DECL_PROTECT() -#define LWIP_MEM_ALLOC_PROTECT() -#define LWIP_MEM_ALLOC_UNPROTECT() -#define LWIP_MEM_LFREE_VOLATILE - -#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ - -/** pointer to the lowest free block, this is used for faster search */ -static struct mem * LWIP_MEM_LFREE_VOLATILE lfree; - -#if MEM_SANITY_CHECK -static void mem_sanity(void); -#define MEM_SANITY() mem_sanity() -#else -#define MEM_SANITY() -#endif - -#if MEM_OVERFLOW_CHECK -static void -mem_overflow_init_element(struct mem *mem, mem_size_t user_size) -{ - void *p = (u8_t *)mem + SIZEOF_STRUCT_MEM + MEM_SANITY_OFFSET; - mem->user_size = user_size; - mem_overflow_init_raw(p, user_size); -} - -static void -mem_overflow_check_element(struct mem *mem) -{ - void *p = (u8_t *)mem + SIZEOF_STRUCT_MEM + MEM_SANITY_OFFSET; - mem_overflow_check_raw(p, mem->user_size, "heap", ""); -} -#else /* MEM_OVERFLOW_CHECK */ -#define mem_overflow_init_element(mem, size) -#define mem_overflow_check_element(mem) -#endif /* MEM_OVERFLOW_CHECK */ - -static struct mem * -ptr_to_mem(mem_size_t ptr) -{ - return (struct mem *)(void *)&ram[ptr]; -} - -static mem_size_t -mem_to_ptr(void *mem) -{ - return (mem_size_t)((u8_t *)mem - ram); -} - -/** - * "Plug holes" by combining adjacent empty struct mems. - * After this function is through, there should not exist - * one empty struct mem pointing to another empty struct mem. - * - * @param mem this points to a struct mem which just has been freed - * @internal this function is only called by mem_free() and mem_trim() - * - * This assumes access to the heap is protected by the calling function - * already. - */ -static void -plug_holes(struct mem *mem) -{ - struct mem *nmem; - struct mem *pmem; - - LWIP_ASSERT("plug_holes: mem >= ram", (u8_t *)mem >= ram); - LWIP_ASSERT("plug_holes: mem < ram_end", (u8_t *)mem < (u8_t *)ram_end); - LWIP_ASSERT("plug_holes: mem->used == 0", mem->used == 0); - - /* plug hole forward */ - LWIP_ASSERT("plug_holes: mem->next <= MEM_SIZE_ALIGNED", mem->next <= MEM_SIZE_ALIGNED); - - nmem = ptr_to_mem(mem->next); - if (mem != nmem && nmem->used == 0 && (u8_t *)nmem != (u8_t *)ram_end) { - /* if mem->next is unused and not end of ram, combine mem and mem->next */ - if (lfree == nmem) { - lfree = mem; - } - mem->next = nmem->next; - if (nmem->next != MEM_SIZE_ALIGNED) { - ptr_to_mem(nmem->next)->prev = mem_to_ptr(mem); - } - } - - /* plug hole backward */ - pmem = ptr_to_mem(mem->prev); - if (pmem != mem && pmem->used == 0) { - /* if mem->prev is unused, combine mem and mem->prev */ - if (lfree == mem) { - lfree = pmem; - } - pmem->next = mem->next; - if (mem->next != MEM_SIZE_ALIGNED) { - ptr_to_mem(mem->next)->prev = mem_to_ptr(pmem); - } - } -} - -/** - * Zero the heap and initialize start, end and lowest-free - */ -void -mem_init(void) -{ - struct mem *mem; - - LWIP_ASSERT("Sanity check alignment", - (SIZEOF_STRUCT_MEM & (MEM_ALIGNMENT - 1)) == 0); - - /* align the heap */ - ram = (u8_t *)LWIP_MEM_ALIGN(LWIP_RAM_HEAP_POINTER); - /* initialize the start of the heap */ - mem = (struct mem *)(void *)ram; - mem->next = MEM_SIZE_ALIGNED; - mem->prev = 0; - mem->used = 0; - /* initialize the end of the heap */ - ram_end = ptr_to_mem(MEM_SIZE_ALIGNED); - ram_end->used = 1; - ram_end->next = MEM_SIZE_ALIGNED; - ram_end->prev = MEM_SIZE_ALIGNED; - MEM_SANITY(); - - /* initialize the lowest-free pointer to the start of the heap */ - lfree = (struct mem *)(void *)ram; - - MEM_STATS_AVAIL(avail, MEM_SIZE_ALIGNED); - - if (sys_mutex_new(&mem_mutex) != ERR_OK) { - LWIP_ASSERT("failed to create mem_mutex", 0); - } -} - -/* Check if a struct mem is correctly linked. - * If not, double-free is a possible reason. - */ -static int -mem_link_valid(struct mem *mem) -{ - struct mem *nmem, *pmem; - mem_size_t rmem_idx; - rmem_idx = mem_to_ptr(mem); - nmem = ptr_to_mem(mem->next); - pmem = ptr_to_mem(mem->prev); - if ((mem->next > MEM_SIZE_ALIGNED) || (mem->prev > MEM_SIZE_ALIGNED) || - ((mem->prev != rmem_idx) && (pmem->next != rmem_idx)) || - ((nmem != ram_end) && (nmem->prev != rmem_idx))) { - return 0; - } - return 1; -} - -#if MEM_SANITY_CHECK -static void -mem_sanity(void) -{ - struct mem *mem; - u8_t last_used; - - /* begin with first element here */ - mem = (struct mem *)ram; - LWIP_ASSERT("heap element used valid", (mem->used == 0) || (mem->used == 1)); - last_used = mem->used; - LWIP_ASSERT("heap element prev ptr valid", mem->prev == 0); - LWIP_ASSERT("heap element next ptr valid", mem->next <= MEM_SIZE_ALIGNED); - LWIP_ASSERT("heap element next ptr aligned", LWIP_MEM_ALIGN(ptr_to_mem(mem->next) == ptr_to_mem(mem->next))); - - /* check all elements before the end of the heap */ - for (mem = ptr_to_mem(mem->next); - ((u8_t *)mem > ram) && (mem < ram_end); - mem = ptr_to_mem(mem->next)) { - LWIP_ASSERT("heap element aligned", LWIP_MEM_ALIGN(mem) == mem); - LWIP_ASSERT("heap element prev ptr valid", mem->prev <= MEM_SIZE_ALIGNED); - LWIP_ASSERT("heap element next ptr valid", mem->next <= MEM_SIZE_ALIGNED); - LWIP_ASSERT("heap element prev ptr aligned", LWIP_MEM_ALIGN(ptr_to_mem(mem->prev) == ptr_to_mem(mem->prev))); - LWIP_ASSERT("heap element next ptr aligned", LWIP_MEM_ALIGN(ptr_to_mem(mem->next) == ptr_to_mem(mem->next))); - - if (last_used == 0) { - /* 2 unused elements in a row? */ - LWIP_ASSERT("heap element unused?", mem->used == 1); - } else { - LWIP_ASSERT("heap element unused member", (mem->used == 0) || (mem->used == 1)); - } - - LWIP_ASSERT("heap element link valid", mem_link_valid(mem)); - - /* used/unused altering */ - last_used = mem->used; - } - LWIP_ASSERT("heap end ptr sanity", mem == ptr_to_mem(MEM_SIZE_ALIGNED)); - LWIP_ASSERT("heap element used valid", mem->used == 1); - LWIP_ASSERT("heap element prev ptr valid", mem->prev == MEM_SIZE_ALIGNED); - LWIP_ASSERT("heap element next ptr valid", mem->next == MEM_SIZE_ALIGNED); -} -#endif /* MEM_SANITY_CHECK */ - -/** - * Put a struct mem back on the heap - * - * @param rmem is the data portion of a struct mem as returned by a previous - * call to mem_malloc() - */ -void -mem_free(void *rmem) -{ - struct mem *mem; - LWIP_MEM_FREE_DECL_PROTECT(); - - if (rmem == NULL) { - LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("mem_free(p == NULL) was called.\n")); - return; - } - if ((((mem_ptr_t)rmem) & (MEM_ALIGNMENT - 1)) != 0) { - LWIP_MEM_ILLEGAL_FREE("mem_free: sanity check alignment"); - LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("mem_free: sanity check alignment\n")); - /* protect mem stats from concurrent access */ - MEM_STATS_INC_LOCKED(illegal); - return; - } - - /* Get the corresponding struct mem: */ - /* cast through void* to get rid of alignment warnings */ - mem = (struct mem *)(void *)((u8_t *)rmem - (SIZEOF_STRUCT_MEM + MEM_SANITY_OFFSET)); - - if ((u8_t *)mem < ram || (u8_t *)rmem + MIN_SIZE_ALIGNED > (u8_t *)ram_end) { - LWIP_MEM_ILLEGAL_FREE("mem_free: illegal memory"); - LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("mem_free: illegal memory\n")); - /* protect mem stats from concurrent access */ - MEM_STATS_INC_LOCKED(illegal); - return; - } -#if MEM_OVERFLOW_CHECK - mem_overflow_check_element(mem); -#endif - /* protect the heap from concurrent access */ - LWIP_MEM_FREE_PROTECT(); - /* mem has to be in a used state */ - if (!mem->used) { - LWIP_MEM_ILLEGAL_FREE("mem_free: illegal memory: double free"); - LWIP_MEM_FREE_UNPROTECT(); - LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("mem_free: illegal memory: double free?\n")); - /* protect mem stats from concurrent access */ - MEM_STATS_INC_LOCKED(illegal); - return; - } - - if (!mem_link_valid(mem)) { - LWIP_MEM_ILLEGAL_FREE("mem_free: illegal memory: non-linked: double free"); - LWIP_MEM_FREE_UNPROTECT(); - LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("mem_free: illegal memory: non-linked: double free?\n")); - /* protect mem stats from concurrent access */ - MEM_STATS_INC_LOCKED(illegal); - return; - } - - /* mem is now unused. */ - mem->used = 0; - - if (mem < lfree) { - /* the newly freed struct is now the lowest */ - lfree = mem; - } - - MEM_STATS_DEC_USED(used, mem->next - (mem_size_t)(((u8_t *)mem - ram))); - - /* finally, see if prev or next are free also */ - plug_holes(mem); - MEM_SANITY(); -#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT - mem_free_count = 1; -#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ - LWIP_MEM_FREE_UNPROTECT(); -} - -/** - * Shrink memory returned by mem_malloc(). - * - * @param rmem pointer to memory allocated by mem_malloc the is to be shrinked - * @param new_size required size after shrinking (needs to be smaller than or - * equal to the previous size) - * @return for compatibility reasons: is always == rmem, at the moment - * or NULL if newsize is > old size, in which case rmem is NOT touched - * or freed! - */ -void * -mem_trim(void *rmem, mem_size_t new_size) -{ - mem_size_t size, newsize; - mem_size_t ptr, ptr2; - struct mem *mem, *mem2; - /* use the FREE_PROTECT here: it protects with sem OR SYS_ARCH_PROTECT */ - LWIP_MEM_FREE_DECL_PROTECT(); - - /* Expand the size of the allocated memory region so that we can - adjust for alignment. */ - newsize = (mem_size_t)LWIP_MEM_ALIGN_SIZE(new_size); - if (newsize < MIN_SIZE_ALIGNED) { - /* every data block must be at least MIN_SIZE_ALIGNED long */ - newsize = MIN_SIZE_ALIGNED; - } -#if MEM_OVERFLOW_CHECK - newsize += MEM_SANITY_REGION_BEFORE_ALIGNED + MEM_SANITY_REGION_AFTER_ALIGNED; -#endif - if ((newsize > MEM_SIZE_ALIGNED) || (newsize < new_size)) { - return NULL; - } - - LWIP_ASSERT("mem_trim: legal memory", (u8_t *)rmem >= (u8_t *)ram && - (u8_t *)rmem < (u8_t *)ram_end); - - if ((u8_t *)rmem < (u8_t *)ram || (u8_t *)rmem >= (u8_t *)ram_end) { - LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("mem_trim: illegal memory\n")); - /* protect mem stats from concurrent access */ - MEM_STATS_INC_LOCKED(illegal); - return rmem; - } - /* Get the corresponding struct mem ... */ - /* cast through void* to get rid of alignment warnings */ - mem = (struct mem *)(void *)((u8_t *)rmem - (SIZEOF_STRUCT_MEM + MEM_SANITY_OFFSET)); -#if MEM_OVERFLOW_CHECK - mem_overflow_check_element(mem); -#endif - /* ... and its offset pointer */ - ptr = mem_to_ptr(mem); - - size = (mem_size_t)((mem_size_t)(mem->next - ptr) - (SIZEOF_STRUCT_MEM + MEM_SANITY_OVERHEAD)); - LWIP_ASSERT("mem_trim can only shrink memory", newsize <= size); - if (newsize > size) { - /* not supported */ - return NULL; - } - if (newsize == size) { - /* No change in size, simply return */ - return rmem; - } - - /* protect the heap from concurrent access */ - LWIP_MEM_FREE_PROTECT(); - - mem2 = ptr_to_mem(mem->next); - if (mem2->used == 0) { - /* The next struct is unused, we can simply move it at little */ - mem_size_t next; - LWIP_ASSERT("invalid next ptr", mem->next != MEM_SIZE_ALIGNED); - /* remember the old next pointer */ - next = mem2->next; - /* create new struct mem which is moved directly after the shrinked mem */ - ptr2 = (mem_size_t)(ptr + SIZEOF_STRUCT_MEM + newsize); - if (lfree == mem2) { - lfree = ptr_to_mem(ptr2); - } - mem2 = ptr_to_mem(ptr2); - mem2->used = 0; - /* restore the next pointer */ - mem2->next = next; - /* link it back to mem */ - mem2->prev = ptr; - /* link mem to it */ - mem->next = ptr2; - /* last thing to restore linked list: as we have moved mem2, - * let 'mem2->next->prev' point to mem2 again. but only if mem2->next is not - * the end of the heap */ - if (mem2->next != MEM_SIZE_ALIGNED) { - ptr_to_mem(mem2->next)->prev = ptr2; - } - MEM_STATS_DEC_USED(used, (size - newsize)); - /* no need to plug holes, we've already done that */ - } else if (newsize + SIZEOF_STRUCT_MEM + MIN_SIZE_ALIGNED <= size) { - /* Next struct is used but there's room for another struct mem with - * at least MIN_SIZE_ALIGNED of data. - * Old size ('size') must be big enough to contain at least 'newsize' plus a struct mem - * ('SIZEOF_STRUCT_MEM') with some data ('MIN_SIZE_ALIGNED'). - * @todo we could leave out MIN_SIZE_ALIGNED. We would create an empty - * region that couldn't hold data, but when mem->next gets freed, - * the 2 regions would be combined, resulting in more free memory */ - ptr2 = (mem_size_t)(ptr + SIZEOF_STRUCT_MEM + newsize); - LWIP_ASSERT("invalid next ptr", mem->next != MEM_SIZE_ALIGNED); - mem2 = ptr_to_mem(ptr2); - if (mem2 < lfree) { - lfree = mem2; - } - mem2->used = 0; - mem2->next = mem->next; - mem2->prev = ptr; - mem->next = ptr2; - if (mem2->next != MEM_SIZE_ALIGNED) { - ptr_to_mem(mem2->next)->prev = ptr2; - } - MEM_STATS_DEC_USED(used, (size - newsize)); - /* the original mem->next is used, so no need to plug holes! */ - } - /* else { - next struct mem is used but size between mem and mem2 is not big enough - to create another struct mem - -> don't do anyhting. - -> the remaining space stays unused since it is too small - } */ -#if MEM_OVERFLOW_CHECK - mem_overflow_init_element(mem, new_size); -#endif - MEM_SANITY(); -#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT - mem_free_count = 1; -#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ - LWIP_MEM_FREE_UNPROTECT(); - return rmem; -} - -/** - * Allocate a block of memory with a minimum of 'size' bytes. - * - * @param size_in is the minimum size of the requested block in bytes. - * @return pointer to allocated memory or NULL if no free memory was found. - * - * Note that the returned value will always be aligned (as defined by MEM_ALIGNMENT). - */ -void * -mem_malloc(mem_size_t size_in) -{ - mem_size_t ptr, ptr2, size; - struct mem *mem, *mem2; -#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT - u8_t local_mem_free_count = 0; -#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ - LWIP_MEM_ALLOC_DECL_PROTECT(); - - if (size_in == 0) { - return NULL; - } - - /* Expand the size of the allocated memory region so that we can - adjust for alignment. */ - size = (mem_size_t)LWIP_MEM_ALIGN_SIZE(size_in); - if (size < MIN_SIZE_ALIGNED) { - /* every data block must be at least MIN_SIZE_ALIGNED long */ - size = MIN_SIZE_ALIGNED; - } -#if MEM_OVERFLOW_CHECK - size += MEM_SANITY_REGION_BEFORE_ALIGNED + MEM_SANITY_REGION_AFTER_ALIGNED; -#endif - if ((size > MEM_SIZE_ALIGNED) || (size < size_in)) { - return NULL; - } - - /* protect the heap from concurrent access */ - sys_mutex_lock(&mem_mutex); - LWIP_MEM_ALLOC_PROTECT(); -#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT - /* run as long as a mem_free disturbed mem_malloc or mem_trim */ - do { - local_mem_free_count = 0; -#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ - - /* Scan through the heap searching for a free block that is big enough, - * beginning with the lowest free block. - */ - for (ptr = mem_to_ptr(lfree); ptr < MEM_SIZE_ALIGNED - size; - ptr = ptr_to_mem(ptr)->next) { - mem = ptr_to_mem(ptr); -#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT - mem_free_count = 0; - LWIP_MEM_ALLOC_UNPROTECT(); - /* allow mem_free or mem_trim to run */ - LWIP_MEM_ALLOC_PROTECT(); - if (mem_free_count != 0) { - /* If mem_free or mem_trim have run, we have to restart since they - could have altered our current struct mem. */ - local_mem_free_count = 1; - break; - } -#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ - - if ((!mem->used) && - (mem->next - (ptr + SIZEOF_STRUCT_MEM)) >= size) { - /* mem is not used and at least perfect fit is possible: - * mem->next - (ptr + SIZEOF_STRUCT_MEM) gives us the 'user data size' of mem */ - - if (mem->next - (ptr + SIZEOF_STRUCT_MEM) >= (size + SIZEOF_STRUCT_MEM + MIN_SIZE_ALIGNED)) { - /* (in addition to the above, we test if another struct mem (SIZEOF_STRUCT_MEM) containing - * at least MIN_SIZE_ALIGNED of data also fits in the 'user data space' of 'mem') - * -> split large block, create empty remainder, - * remainder must be large enough to contain MIN_SIZE_ALIGNED data: if - * mem->next - (ptr + (2*SIZEOF_STRUCT_MEM)) == size, - * struct mem would fit in but no data between mem2 and mem2->next - * @todo we could leave out MIN_SIZE_ALIGNED. We would create an empty - * region that couldn't hold data, but when mem->next gets freed, - * the 2 regions would be combined, resulting in more free memory - */ - ptr2 = (mem_size_t)(ptr + SIZEOF_STRUCT_MEM + size); - LWIP_ASSERT("invalid next ptr",ptr2 != MEM_SIZE_ALIGNED); - /* create mem2 struct */ - mem2 = ptr_to_mem(ptr2); - mem2->used = 0; - mem2->next = mem->next; - mem2->prev = ptr; - /* and insert it between mem and mem->next */ - mem->next = ptr2; - mem->used = 1; - - if (mem2->next != MEM_SIZE_ALIGNED) { - ptr_to_mem(mem2->next)->prev = ptr2; - } - MEM_STATS_INC_USED(used, (size + SIZEOF_STRUCT_MEM)); - } else { - /* (a mem2 struct does no fit into the user data space of mem and mem->next will always - * be used at this point: if not we have 2 unused structs in a row, plug_holes should have - * take care of this). - * -> near fit or exact fit: do not split, no mem2 creation - * also can't move mem->next directly behind mem, since mem->next - * will always be used at this point! - */ - mem->used = 1; - MEM_STATS_INC_USED(used, mem->next - mem_to_ptr(mem)); - } -#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT -mem_malloc_adjust_lfree: -#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ - if (mem == lfree) { - struct mem *cur = lfree; - /* Find next free block after mem and update lowest free pointer */ - while (cur->used && cur != ram_end) { -#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT - mem_free_count = 0; - LWIP_MEM_ALLOC_UNPROTECT(); - /* prevent high interrupt latency... */ - LWIP_MEM_ALLOC_PROTECT(); - if (mem_free_count != 0) { - /* If mem_free or mem_trim have run, we have to restart since they - could have altered our current struct mem or lfree. */ - goto mem_malloc_adjust_lfree; - } -#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ - cur = ptr_to_mem(cur->next); - } - lfree = cur; - LWIP_ASSERT("mem_malloc: !lfree->used", ((lfree == ram_end) || (!lfree->used))); - } - LWIP_MEM_ALLOC_UNPROTECT(); - sys_mutex_unlock(&mem_mutex); - LWIP_ASSERT("mem_malloc: allocated memory not above ram_end.", - (mem_ptr_t)mem + SIZEOF_STRUCT_MEM + size <= (mem_ptr_t)ram_end); - LWIP_ASSERT("mem_malloc: allocated memory properly aligned.", - ((mem_ptr_t)mem + SIZEOF_STRUCT_MEM) % MEM_ALIGNMENT == 0); - LWIP_ASSERT("mem_malloc: sanity check alignment", - (((mem_ptr_t)mem) & (MEM_ALIGNMENT - 1)) == 0); - -#if MEM_OVERFLOW_CHECK - mem_overflow_init_element(mem, size_in); -#endif - MEM_SANITY(); - return (u8_t *)mem + SIZEOF_STRUCT_MEM + MEM_SANITY_OFFSET; - } - } -#if LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT - /* if we got interrupted by a mem_free, try again */ - } while (local_mem_free_count != 0); -#endif /* LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT */ - MEM_STATS_INC(err); - LWIP_MEM_ALLOC_UNPROTECT(); - sys_mutex_unlock(&mem_mutex); - LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("mem_malloc: could not allocate %"S16_F" bytes\n", (s16_t)size)); - return NULL; -} - -#endif /* MEM_USE_POOLS */ - -#if MEM_LIBC_MALLOC && (!LWIP_STATS || !MEM_STATS) -void * -mem_calloc(mem_size_t count, mem_size_t size) -{ - return mem_clib_calloc(count, size); -} - -#else /* MEM_LIBC_MALLOC && (!LWIP_STATS || !MEM_STATS) */ -/** - * Contiguously allocates enough space for count objects that are size bytes - * of memory each and returns a pointer to the allocated memory. - * - * The allocated memory is filled with bytes of value zero. - * - * @param count number of objects to allocate - * @param size size of the objects to allocate - * @return pointer to allocated memory / NULL pointer if there is an error - */ -void * -mem_calloc(mem_size_t count, mem_size_t size) -{ - void *p; - size_t alloc_size = (size_t)count * (size_t)size; - - if ((size_t)(mem_size_t)alloc_size != alloc_size) { - LWIP_DEBUGF(MEM_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("mem_calloc: could not allocate %"SZT_F" bytes\n", alloc_size)); - return NULL; - } - - /* allocate 'count' objects of size 'size' */ - p = mem_malloc((mem_size_t)alloc_size); - if (p) { - /* zero the memory */ - memset(p, 0, alloc_size); - } - return p; -} -#endif /* MEM_LIBC_MALLOC && (!LWIP_STATS || !MEM_STATS) */ diff --git a/core/c/core/memp.c b/core/c/core/memp.c deleted file mode 100755 index 18771f6..0000000 --- a/core/c/core/memp.c +++ /dev/null @@ -1,447 +0,0 @@ -/** - * @file - * Dynamic pool memory manager - * - * lwIP has dedicated pools for many structures (netconn, protocol control blocks, - * packet buffers, ...). All these pools are managed here. - * - * @defgroup mempool Memory pools - * @ingroup infrastructure - * Custom memory pools - - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#include "lwip/memp.h" -#include "lwip/sys.h" -#include "lwip/stats.h" - -#include - -/* Make sure we include everything we need for size calculation required by memp_std.h */ -#include "lwip/pbuf.h" -#include "lwip/raw.h" -#include "lwip/udp.h" -#include "lwip/tcp.h" -#include "lwip/priv/tcp_priv.h" -#include "lwip/altcp.h" -#include "lwip/ip4_frag.h" -#include "lwip/netbuf.h" -#include "lwip/api.h" -#include "lwip/priv/tcpip_priv.h" -#include "lwip/priv/api_msg.h" -#include "lwip/priv/sockets_priv.h" -#include "lwip/etharp.h" -#include "lwip/igmp.h" -#include "lwip/timeouts.h" -/* needed by default MEMP_NUM_SYS_TIMEOUT */ -#include "netif/ppp/ppp_opts.h" -#include "lwip/netdb.h" -#include "lwip/dns.h" -#include "lwip/priv/nd6_priv.h" -#include "lwip/ip6_frag.h" -#include "lwip/mld6.h" - -#define LWIP_MEMPOOL(name,num,size,desc) LWIP_MEMPOOL_DECLARE(name,num,size,desc) -#include "lwip/priv/memp_std.h" - -const struct memp_desc *const memp_pools[MEMP_MAX] = { -#define LWIP_MEMPOOL(name,num,size,desc) &memp_ ## name, -#include "lwip/priv/memp_std.h" -}; - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif - -#if MEMP_MEM_MALLOC && MEMP_OVERFLOW_CHECK >= 2 -#undef MEMP_OVERFLOW_CHECK -/* MEMP_OVERFLOW_CHECK >= 2 does not work with MEMP_MEM_MALLOC, use 1 instead */ -#define MEMP_OVERFLOW_CHECK 1 -#endif - -#if MEMP_SANITY_CHECK && !MEMP_MEM_MALLOC -/** - * Check that memp-lists don't form a circle, using "Floyd's cycle-finding algorithm". - */ -static int -memp_sanity(const struct memp_desc *desc) -{ - struct memp *t, *h; - - t = *desc->tab; - if (t != NULL) { - for (h = t->next; (t != NULL) && (h != NULL); t = t->next, - h = ((h->next != NULL) ? h->next->next : NULL)) { - if (t == h) { - return 0; - } - } - } - - return 1; -} -#endif /* MEMP_SANITY_CHECK && !MEMP_MEM_MALLOC */ - -#if MEMP_OVERFLOW_CHECK -/** - * Check if a memp element was victim of an overflow or underflow - * (e.g. the restricted area after/before it has been altered) - * - * @param p the memp element to check - * @param desc the pool p comes from - */ -static void -memp_overflow_check_element(struct memp *p, const struct memp_desc *desc) -{ - mem_overflow_check_raw((u8_t *)p + MEMP_SIZE, desc->size, "pool ", desc->desc); -} - -/** - * Initialize the restricted area of on memp element. - */ -static void -memp_overflow_init_element(struct memp *p, const struct memp_desc *desc) -{ - mem_overflow_init_raw((u8_t *)p + MEMP_SIZE, desc->size); -} - -#if MEMP_OVERFLOW_CHECK >= 2 -/** - * Do an overflow check for all elements in every pool. - * - * @see memp_overflow_check_element for a description of the check - */ -static void -memp_overflow_check_all(void) -{ - u16_t i, j; - struct memp *p; - SYS_ARCH_DECL_PROTECT(old_level); - SYS_ARCH_PROTECT(old_level); - - for (i = 0; i < MEMP_MAX; ++i) { - p = (struct memp *)LWIP_MEM_ALIGN(memp_pools[i]->base); - for (j = 0; j < memp_pools[i]->num; ++j) { - memp_overflow_check_element(p, memp_pools[i]); - p = LWIP_ALIGNMENT_CAST(struct memp *, ((u8_t *)p + MEMP_SIZE + memp_pools[i]->size + MEM_SANITY_REGION_AFTER_ALIGNED)); - } - } - SYS_ARCH_UNPROTECT(old_level); -} -#endif /* MEMP_OVERFLOW_CHECK >= 2 */ -#endif /* MEMP_OVERFLOW_CHECK */ - -/** - * Initialize custom memory pool. - * Related functions: memp_malloc_pool, memp_free_pool - * - * @param desc pool to initialize - */ -void -memp_init_pool(const struct memp_desc *desc) -{ -#if MEMP_MEM_MALLOC - LWIP_UNUSED_ARG(desc); -#else - int i; - struct memp *memp; - - *desc->tab = NULL; - memp = (struct memp *)LWIP_MEM_ALIGN(desc->base); -#if MEMP_MEM_INIT - /* force memset on pool memory */ - memset(memp, 0, (size_t)desc->num * (MEMP_SIZE + desc->size -#if MEMP_OVERFLOW_CHECK - + MEM_SANITY_REGION_AFTER_ALIGNED -#endif - )); -#endif - /* create a linked list of memp elements */ - for (i = 0; i < desc->num; ++i) { - memp->next = *desc->tab; - *desc->tab = memp; -#if MEMP_OVERFLOW_CHECK - memp_overflow_init_element(memp, desc); -#endif /* MEMP_OVERFLOW_CHECK */ - /* cast through void* to get rid of alignment warnings */ - memp = (struct memp *)(void *)((u8_t *)memp + MEMP_SIZE + desc->size -#if MEMP_OVERFLOW_CHECK - + MEM_SANITY_REGION_AFTER_ALIGNED -#endif - ); - } -#if MEMP_STATS - desc->stats->avail = desc->num; -#endif /* MEMP_STATS */ -#endif /* !MEMP_MEM_MALLOC */ - -#if MEMP_STATS && (defined(LWIP_DEBUG) || LWIP_STATS_DISPLAY) - desc->stats->name = desc->desc; -#endif /* MEMP_STATS && (defined(LWIP_DEBUG) || LWIP_STATS_DISPLAY) */ -} - -/** - * Initializes lwIP built-in pools. - * Related functions: memp_malloc, memp_free - * - * Carves out memp_memory into linked lists for each pool-type. - */ -void -memp_init(void) -{ - u16_t i; - - /* for every pool: */ - for (i = 0; i < LWIP_ARRAYSIZE(memp_pools); i++) { - memp_init_pool(memp_pools[i]); - -#if LWIP_STATS && MEMP_STATS - lwip_stats.memp[i] = memp_pools[i]->stats; -#endif - } - -#if MEMP_OVERFLOW_CHECK >= 2 - /* check everything a first time to see if it worked */ - memp_overflow_check_all(); -#endif /* MEMP_OVERFLOW_CHECK >= 2 */ -} - -static void * -#if !MEMP_OVERFLOW_CHECK -do_memp_malloc_pool(const struct memp_desc *desc) -#else -do_memp_malloc_pool_fn(const struct memp_desc *desc, const char *file, const int line) -#endif -{ - struct memp *memp; - SYS_ARCH_DECL_PROTECT(old_level); - -#if MEMP_MEM_MALLOC - memp = (struct memp *)mem_malloc(MEMP_SIZE + MEMP_ALIGN_SIZE(desc->size)); - SYS_ARCH_PROTECT(old_level); -#else /* MEMP_MEM_MALLOC */ - SYS_ARCH_PROTECT(old_level); - - memp = *desc->tab; -#endif /* MEMP_MEM_MALLOC */ - - if (memp != NULL) { -#if !MEMP_MEM_MALLOC -#if MEMP_OVERFLOW_CHECK == 1 - memp_overflow_check_element(memp, desc); -#endif /* MEMP_OVERFLOW_CHECK */ - - *desc->tab = memp->next; -#if MEMP_OVERFLOW_CHECK - memp->next = NULL; -#endif /* MEMP_OVERFLOW_CHECK */ -#endif /* !MEMP_MEM_MALLOC */ -#if MEMP_OVERFLOW_CHECK - memp->file = file; - memp->line = line; -#if MEMP_MEM_MALLOC - memp_overflow_init_element(memp, desc); -#endif /* MEMP_MEM_MALLOC */ -#endif /* MEMP_OVERFLOW_CHECK */ - LWIP_ASSERT("memp_malloc: memp properly aligned", - ((mem_ptr_t)memp % MEM_ALIGNMENT) == 0); -#if MEMP_STATS - desc->stats->used++; - if (desc->stats->used > desc->stats->max) { - desc->stats->max = desc->stats->used; - } -#endif - SYS_ARCH_UNPROTECT(old_level); - /* cast through u8_t* to get rid of alignment warnings */ - return ((u8_t *)memp + MEMP_SIZE); - } else { -#if MEMP_STATS - desc->stats->err++; -#endif - SYS_ARCH_UNPROTECT(old_level); - LWIP_DEBUGF(MEMP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("memp_malloc: out of memory in pool %s\n", desc->desc)); - } - - return NULL; -} - -/** - * Get an element from a custom pool. - * - * @param desc the pool to get an element from - * - * @return a pointer to the allocated memory or a NULL pointer on error - */ -void * -#if !MEMP_OVERFLOW_CHECK -memp_malloc_pool(const struct memp_desc *desc) -#else -memp_malloc_pool_fn(const struct memp_desc *desc, const char *file, const int line) -#endif -{ - LWIP_ASSERT("invalid pool desc", desc != NULL); - if (desc == NULL) { - return NULL; - } - -#if !MEMP_OVERFLOW_CHECK - return do_memp_malloc_pool(desc); -#else - return do_memp_malloc_pool_fn(desc, file, line); -#endif -} - -/** - * Get an element from a specific pool. - * - * @param type the pool to get an element from - * - * @return a pointer to the allocated memory or a NULL pointer on error - */ -void * -#if !MEMP_OVERFLOW_CHECK -memp_malloc(memp_t type) -#else -memp_malloc_fn(memp_t type, const char *file, const int line) -#endif -{ - void *memp; - LWIP_ERROR("memp_malloc: type < MEMP_MAX", (type < MEMP_MAX), return NULL;); - -#if MEMP_OVERFLOW_CHECK >= 2 - memp_overflow_check_all(); -#endif /* MEMP_OVERFLOW_CHECK >= 2 */ - -#if !MEMP_OVERFLOW_CHECK - memp = do_memp_malloc_pool(memp_pools[type]); -#else - memp = do_memp_malloc_pool_fn(memp_pools[type], file, line); -#endif - - return memp; -} - -static void -do_memp_free_pool(const struct memp_desc *desc, void *mem) -{ - struct memp *memp; - SYS_ARCH_DECL_PROTECT(old_level); - - LWIP_ASSERT("memp_free: mem properly aligned", - ((mem_ptr_t)mem % MEM_ALIGNMENT) == 0); - - /* cast through void* to get rid of alignment warnings */ - memp = (struct memp *)(void *)((u8_t *)mem - MEMP_SIZE); - - SYS_ARCH_PROTECT(old_level); - -#if MEMP_OVERFLOW_CHECK == 1 - memp_overflow_check_element(memp, desc); -#endif /* MEMP_OVERFLOW_CHECK */ - -#if MEMP_STATS - desc->stats->used--; -#endif - -#if MEMP_MEM_MALLOC - LWIP_UNUSED_ARG(desc); - SYS_ARCH_UNPROTECT(old_level); - mem_free(memp); -#else /* MEMP_MEM_MALLOC */ - memp->next = *desc->tab; - *desc->tab = memp; - -#if MEMP_SANITY_CHECK - LWIP_ASSERT("memp sanity", memp_sanity(desc)); -#endif /* MEMP_SANITY_CHECK */ - - SYS_ARCH_UNPROTECT(old_level); -#endif /* !MEMP_MEM_MALLOC */ -} - -/** - * Put a custom pool element back into its pool. - * - * @param desc the pool where to put mem - * @param mem the memp element to free - */ -void -memp_free_pool(const struct memp_desc *desc, void *mem) -{ - LWIP_ASSERT("invalid pool desc", desc != NULL); - if ((desc == NULL) || (mem == NULL)) { - return; - } - - do_memp_free_pool(desc, mem); -} - -/** - * Put an element back into its pool. - * - * @param type the pool where to put mem - * @param mem the memp element to free - */ -void -memp_free(memp_t type, void *mem) -{ -#ifdef LWIP_HOOK_MEMP_AVAILABLE - struct memp *old_first; -#endif - - LWIP_ERROR("memp_free: type < MEMP_MAX", (type < MEMP_MAX), return;); - - if (mem == NULL) { - return; - } - -#if MEMP_OVERFLOW_CHECK >= 2 - memp_overflow_check_all(); -#endif /* MEMP_OVERFLOW_CHECK >= 2 */ - -#ifdef LWIP_HOOK_MEMP_AVAILABLE - old_first = *memp_pools[type]->tab; -#endif - - do_memp_free_pool(memp_pools[type], mem); - -#ifdef LWIP_HOOK_MEMP_AVAILABLE - if (old_first == NULL) { - LWIP_HOOK_MEMP_AVAILABLE(type); - } -#endif -} diff --git a/core/c/core/netif.c b/core/c/core/netif.c deleted file mode 100755 index a19018c..0000000 --- a/core/c/core/netif.c +++ /dev/null @@ -1,1795 +0,0 @@ -/** - * @file - * lwIP network interface abstraction - * - * @defgroup netif Network interface (NETIF) - * @ingroup callbackstyle_api - * - * @defgroup netif_ip4 IPv4 address handling - * @ingroup netif - * - * @defgroup netif_ip6 IPv6 address handling - * @ingroup netif - * - * @defgroup netif_cd Client data handling - * Store data (void*) on a netif for application usage. - * @see @ref LWIP_NUM_NETIF_CLIENT_DATA - * @ingroup netif - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - */ - -#include "lwip/opt.h" - -#include /* memset */ -#include /* atoi */ - -#include "lwip/def.h" -#include "lwip/ip_addr.h" -#include "lwip/ip6_addr.h" -#include "lwip/netif.h" -#include "lwip/priv/tcp_priv.h" -#include "lwip/udp.h" -#include "lwip/priv/raw_priv.h" -#include "lwip/snmp.h" -#include "lwip/igmp.h" -#include "lwip/etharp.h" -#include "lwip/stats.h" -#include "lwip/sys.h" -#include "lwip/ip.h" -#if ENABLE_LOOPBACK -#if LWIP_NETIF_LOOPBACK_MULTITHREADING -#include "lwip/tcpip.h" -#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ -#endif /* ENABLE_LOOPBACK */ - -#include "netif/ethernet.h" - -#if LWIP_AUTOIP -#include "lwip/autoip.h" -#endif /* LWIP_AUTOIP */ -#if LWIP_DHCP -#include "lwip/dhcp.h" -#endif /* LWIP_DHCP */ -#if LWIP_IPV6_DHCP6 -#include "lwip/dhcp6.h" -#endif /* LWIP_IPV6_DHCP6 */ -#if LWIP_IPV6_MLD -#include "lwip/mld6.h" -#endif /* LWIP_IPV6_MLD */ -#if LWIP_IPV6 -#include "lwip/nd6.h" -#endif - -#if LWIP_NETIF_STATUS_CALLBACK -#define NETIF_STATUS_CALLBACK(n) do{ if (n->status_callback) { (n->status_callback)(n); }}while(0) -#else -#define NETIF_STATUS_CALLBACK(n) -#endif /* LWIP_NETIF_STATUS_CALLBACK */ - -#if LWIP_NETIF_LINK_CALLBACK -#define NETIF_LINK_CALLBACK(n) do{ if (n->link_callback) { (n->link_callback)(n); }}while(0) -#else -#define NETIF_LINK_CALLBACK(n) -#endif /* LWIP_NETIF_LINK_CALLBACK */ - -#if LWIP_NETIF_EXT_STATUS_CALLBACK -static netif_ext_callback_t *ext_callback; -#endif - -#if !LWIP_SINGLE_NETIF -struct netif *netif_list; -#endif /* !LWIP_SINGLE_NETIF */ -struct netif *netif_default; - -#define netif_index_to_num(index) ((index) - 1) -static u8_t netif_num; - -#if LWIP_NUM_NETIF_CLIENT_DATA > 0 -static u8_t netif_client_id; -#endif - -#define NETIF_REPORT_TYPE_IPV4 0x01 -#define NETIF_REPORT_TYPE_IPV6 0x02 -static void netif_issue_reports(struct netif *netif, u8_t report_type); - -#if LWIP_IPV6 -static err_t netif_null_output_ip6(struct netif *netif, struct pbuf *p, const ip6_addr_t *ipaddr); -#endif /* LWIP_IPV6 */ -#if LWIP_IPV4 -static err_t netif_null_output_ip4(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr); -#endif /* LWIP_IPV4 */ - -#if LWIP_HAVE_LOOPIF -#if LWIP_IPV4 -static err_t netif_loop_output_ipv4(struct netif *netif, struct pbuf *p, const ip4_addr_t *addr); -#endif -#if LWIP_IPV6 -static err_t netif_loop_output_ipv6(struct netif *netif, struct pbuf *p, const ip6_addr_t *addr); -#endif - - -static struct netif loop_netif; - -/** - * Initialize a lwip network interface structure for a loopback interface - * - * @param netif the lwip network interface structure for this loopif - * @return ERR_OK if the loopif is initialized - * ERR_MEM if private data couldn't be allocated - */ -static err_t -netif_loopif_init(struct netif *netif) -{ - LWIP_ASSERT("netif_loopif_init: invalid netif", netif != NULL); - - /* initialize the snmp variables and counters inside the struct netif - * ifSpeed: no assumption can be made! - */ - MIB2_INIT_NETIF(netif, snmp_ifType_softwareLoopback, 0); - - netif->name[0] = 'l'; - netif->name[1] = 'o'; -#if LWIP_IPV4 - netif->output = netif_loop_output_ipv4; -#endif -#if LWIP_IPV6 - netif->output_ip6 = netif_loop_output_ipv6; -#endif -#if LWIP_LOOPIF_MULTICAST - netif_set_flags(netif, NETIF_FLAG_IGMP); -#endif - NETIF_SET_CHECKSUM_CTRL(netif, NETIF_CHECKSUM_DISABLE_ALL); - return ERR_OK; -} -#endif /* LWIP_HAVE_LOOPIF */ - -void -netif_init(void) -{ -#if LWIP_HAVE_LOOPIF -#if LWIP_IPV4 -#define LOOPIF_ADDRINIT &loop_ipaddr, &loop_netmask, &loop_gw, - ip4_addr_t loop_ipaddr, loop_netmask, loop_gw; - IP4_ADDR(&loop_gw, 127, 0, 0, 1); - IP4_ADDR(&loop_ipaddr, 127, 0, 0, 1); - IP4_ADDR(&loop_netmask, 255, 0, 0, 0); -#else /* LWIP_IPV4 */ -#define LOOPIF_ADDRINIT -#endif /* LWIP_IPV4 */ - -#if NO_SYS - netif_add(&loop_netif, LOOPIF_ADDRINIT NULL, netif_loopif_init, ip_input); -#else /* NO_SYS */ - netif_add(&loop_netif, LOOPIF_ADDRINIT NULL, netif_loopif_init, tcpip_input); -#endif /* NO_SYS */ - -#if LWIP_IPV6 - IP_ADDR6_HOST(loop_netif.ip6_addr, 0, 0, 0, 0x00000001UL); - loop_netif.ip6_addr_state[0] = IP6_ADDR_VALID; -#endif /* LWIP_IPV6 */ - - netif_set_link_up(&loop_netif); - netif_set_up(&loop_netif); - -#endif /* LWIP_HAVE_LOOPIF */ -} - -/** - * @ingroup lwip_nosys - * Forwards a received packet for input processing with - * ethernet_input() or ip_input() depending on netif flags. - * Don't call directly, pass to netif_add() and call - * netif->input(). - * Only works if the netif driver correctly sets - * NETIF_FLAG_ETHARP and/or NETIF_FLAG_ETHERNET flag! - */ -err_t -netif_input(struct pbuf *p, struct netif *inp) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ASSERT("netif_input: invalid pbuf", p != NULL); - LWIP_ASSERT("netif_input: invalid netif", inp != NULL); - -#if LWIP_ETHERNET - if (inp->flags & (NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET)) { - return ethernet_input(p, inp); - } else -#endif /* LWIP_ETHERNET */ - return ip_input(p, inp); -} - -/** - * @ingroup netif - * Add a network interface to the list of lwIP netifs. - * - * Same as @ref netif_add but without IPv4 addresses - */ -struct netif * -netif_add_noaddr(struct netif *netif, void *state, netif_init_fn init, netif_input_fn input) -{ - return netif_add(netif, -#if LWIP_IPV4 - NULL, NULL, NULL, -#endif /* LWIP_IPV4*/ - state, init, input); -} - -/** - * @ingroup netif - * Add a network interface to the list of lwIP netifs. - * - * @param netif a pre-allocated netif structure - * @param ipaddr IP address for the new netif - * @param netmask network mask for the new netif - * @param gw default gateway IP address for the new netif - * @param state opaque data passed to the new netif - * @param init callback function that initializes the interface - * @param input callback function that is called to pass - * ingress packets up in the protocol layer stack.\n - * It is recommended to use a function that passes the input directly - * to the stack (netif_input(), NO_SYS=1 mode) or via sending a - * message to TCPIP thread (tcpip_input(), NO_SYS=0 mode).\n - * These functions use netif flags NETIF_FLAG_ETHARP and NETIF_FLAG_ETHERNET - * to decide whether to forward to ethernet_input() or ip_input(). - * In other words, the functions only work when the netif - * driver is implemented correctly!\n - * Most members of struct netif should be be initialized by the - * netif init function = netif driver (init parameter of this function).\n - * IPv6: Don't forget to call netif_create_ip6_linklocal_address() after - * setting the MAC address in struct netif.hwaddr - * (IPv6 requires a link-local address). - * - * @return netif, or NULL if failed. - */ -struct netif * -netif_add(struct netif *netif, -#if LWIP_IPV4 - const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw, -#endif /* LWIP_IPV4 */ - void *state, netif_init_fn init, netif_input_fn input) -{ -#if LWIP_IPV6 - s8_t i; -#endif - - LWIP_ASSERT_CORE_LOCKED(); - -#if LWIP_SINGLE_NETIF - if (netif_default != NULL) { - LWIP_ASSERT("single netif already set", 0); - return NULL; - } -#endif - - LWIP_ERROR("netif_add: invalid netif", netif != NULL, return NULL); - LWIP_ERROR("netif_add: No init function given", init != NULL, return NULL); - -#if LWIP_IPV4 - if (ipaddr == NULL) { - ipaddr = ip_2_ip4(IP4_ADDR_ANY); - } - if (netmask == NULL) { - netmask = ip_2_ip4(IP4_ADDR_ANY); - } - if (gw == NULL) { - gw = ip_2_ip4(IP4_ADDR_ANY); - } - - /* reset new interface configuration state */ - ip_addr_set_zero_ip4(&netif->ip_addr); - ip_addr_set_zero_ip4(&netif->netmask); - ip_addr_set_zero_ip4(&netif->gw); - netif->output = netif_null_output_ip4; -#endif /* LWIP_IPV4 */ -#if LWIP_IPV6 - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - ip_addr_set_zero_ip6(&netif->ip6_addr[i]); - netif->ip6_addr_state[i] = IP6_ADDR_INVALID; -#if LWIP_IPV6_ADDRESS_LIFETIMES - netif->ip6_addr_valid_life[i] = IP6_ADDR_LIFE_STATIC; - netif->ip6_addr_pref_life[i] = IP6_ADDR_LIFE_STATIC; -#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */ - } - netif->output_ip6 = netif_null_output_ip6; -#endif /* LWIP_IPV6 */ - NETIF_SET_CHECKSUM_CTRL(netif, NETIF_CHECKSUM_ENABLE_ALL); - netif->mtu = 0; - netif->flags = 0; -#ifdef netif_get_client_data - memset(netif->client_data, 0, sizeof(netif->client_data)); -#endif /* LWIP_NUM_NETIF_CLIENT_DATA */ -#if LWIP_IPV6 -#if LWIP_IPV6_AUTOCONFIG - /* IPv6 address autoconfiguration not enabled by default */ - netif->ip6_autoconfig_enabled = 0; -#endif /* LWIP_IPV6_AUTOCONFIG */ - nd6_restart_netif(netif); -#endif /* LWIP_IPV6 */ -#if LWIP_NETIF_STATUS_CALLBACK - netif->status_callback = NULL; -#endif /* LWIP_NETIF_STATUS_CALLBACK */ -#if LWIP_NETIF_LINK_CALLBACK - netif->link_callback = NULL; -#endif /* LWIP_NETIF_LINK_CALLBACK */ -#if LWIP_IGMP - netif->igmp_mac_filter = NULL; -#endif /* LWIP_IGMP */ -#if LWIP_IPV6 && LWIP_IPV6_MLD - netif->mld_mac_filter = NULL; -#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ -#if ENABLE_LOOPBACK - netif->loop_first = NULL; - netif->loop_last = NULL; -#endif /* ENABLE_LOOPBACK */ - - /* remember netif specific state information data */ - netif->state = state; - netif->num = netif_num; - netif->input = input; - - NETIF_RESET_HINTS(netif); -#if ENABLE_LOOPBACK && LWIP_LOOPBACK_MAX_PBUFS - netif->loop_cnt_current = 0; -#endif /* ENABLE_LOOPBACK && LWIP_LOOPBACK_MAX_PBUFS */ - -#if LWIP_IPV4 - netif_set_addr(netif, ipaddr, netmask, gw); -#endif /* LWIP_IPV4 */ - - /* call user specified initialization function for netif */ - if (init(netif) != ERR_OK) { - return NULL; - } -#if LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES - /* Initialize the MTU for IPv6 to the one set by the netif driver. - This can be updated later by RA. */ - netif->mtu6 = netif->mtu; -#endif /* LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES */ - -#if !LWIP_SINGLE_NETIF - /* Assign a unique netif number in the range [0..254], so that (num+1) can - serve as an interface index that fits in a u8_t. - We assume that the new netif has not yet been added to the list here. - This algorithm is O(n^2), but that should be OK for lwIP. - */ - { - struct netif *netif2; - int num_netifs; - do { - if (netif->num == 255) { - netif->num = 0; - } - num_netifs = 0; - for (netif2 = netif_list; netif2 != NULL; netif2 = netif2->next) { - LWIP_ASSERT("netif already added", netif2 != netif); - num_netifs++; - LWIP_ASSERT("too many netifs, max. supported number is 255", num_netifs <= 255); - if (netif2->num == netif->num) { - netif->num++; - break; - } - } - } while (netif2 != NULL); - } - if (netif->num == 254) { - netif_num = 0; - } else { - netif_num = (u8_t)(netif->num + 1); - } - - /* add this netif to the list */ - netif->next = netif_list; - netif_list = netif; -#endif /* "LWIP_SINGLE_NETIF */ - mib2_netif_added(netif); - -#if LWIP_IGMP - /* start IGMP processing */ - if (netif->flags & NETIF_FLAG_IGMP) { - igmp_start(netif); - } -#endif /* LWIP_IGMP */ - - LWIP_DEBUGF(NETIF_DEBUG, ("netif: added interface %c%c IP", - netif->name[0], netif->name[1])); -#if LWIP_IPV4 - LWIP_DEBUGF(NETIF_DEBUG, (" addr ")); - ip4_addr_debug_print(NETIF_DEBUG, ipaddr); - LWIP_DEBUGF(NETIF_DEBUG, (" netmask ")); - ip4_addr_debug_print(NETIF_DEBUG, netmask); - LWIP_DEBUGF(NETIF_DEBUG, (" gw ")); - ip4_addr_debug_print(NETIF_DEBUG, gw); -#endif /* LWIP_IPV4 */ - LWIP_DEBUGF(NETIF_DEBUG, ("\n")); - - netif_invoke_ext_callback(netif, LWIP_NSC_NETIF_ADDED, NULL); - - return netif; -} - -static void -netif_do_ip_addr_changed(const ip_addr_t *old_addr, const ip_addr_t *new_addr) -{ -#if LWIP_TCP - tcp_netif_ip_addr_changed(old_addr, new_addr); -#endif /* LWIP_TCP */ -#if LWIP_UDP - udp_netif_ip_addr_changed(old_addr, new_addr); -#endif /* LWIP_UDP */ -#if LWIP_RAW - raw_netif_ip_addr_changed(old_addr, new_addr); -#endif /* LWIP_RAW */ -} - -#if LWIP_IPV4 -static int -netif_do_set_ipaddr(struct netif *netif, const ip4_addr_t *ipaddr, ip_addr_t *old_addr) -{ - LWIP_ASSERT("invalid pointer", ipaddr != NULL); - LWIP_ASSERT("invalid pointer", old_addr != NULL); - - /* address is actually being changed? */ - if (ip4_addr_cmp(ipaddr, netif_ip4_addr(netif)) == 0) { - ip_addr_t new_addr; - *ip_2_ip4(&new_addr) = *ipaddr; - IP_SET_TYPE_VAL(new_addr, IPADDR_TYPE_V4); - - ip_addr_copy(*old_addr, *netif_ip_addr4(netif)); - - LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_STATE, ("netif_set_ipaddr: netif address being changed\n")); - netif_do_ip_addr_changed(old_addr, &new_addr); - - mib2_remove_ip4(netif); - mib2_remove_route_ip4(0, netif); - /* set new IP address to netif */ - ip4_addr_set(ip_2_ip4(&netif->ip_addr), ipaddr); - IP_SET_TYPE_VAL(netif->ip_addr, IPADDR_TYPE_V4); - mib2_add_ip4(netif); - mib2_add_route_ip4(0, netif); - - netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV4); - - NETIF_STATUS_CALLBACK(netif); - return 1; /* address changed */ - } - return 0; /* address unchanged */ -} - -/** - * @ingroup netif_ip4 - * Change the IP address of a network interface - * - * @param netif the network interface to change - * @param ipaddr the new IP address - * - * @note call netif_set_addr() if you also want to change netmask and - * default gateway - */ -void -netif_set_ipaddr(struct netif *netif, const ip4_addr_t *ipaddr) -{ - ip_addr_t old_addr; - - LWIP_ERROR("netif_set_ipaddr: invalid netif", netif != NULL, return); - - /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ - if (ipaddr == NULL) { - ipaddr = IP4_ADDR_ANY4; - } - - LWIP_ASSERT_CORE_LOCKED(); - - if (netif_do_set_ipaddr(netif, ipaddr, &old_addr)) { -#if LWIP_NETIF_EXT_STATUS_CALLBACK - netif_ext_callback_args_t args; - args.ipv4_changed.old_address = &old_addr; - netif_invoke_ext_callback(netif, LWIP_NSC_IPV4_ADDRESS_CHANGED, &args); -#endif - } -} - -static int -netif_do_set_netmask(struct netif *netif, const ip4_addr_t *netmask, ip_addr_t *old_nm) -{ - /* address is actually being changed? */ - if (ip4_addr_cmp(netmask, netif_ip4_netmask(netif)) == 0) { -#if LWIP_NETIF_EXT_STATUS_CALLBACK - LWIP_ASSERT("invalid pointer", old_nm != NULL); - ip_addr_copy(*old_nm, *netif_ip_netmask4(netif)); -#else - LWIP_UNUSED_ARG(old_nm); -#endif - mib2_remove_route_ip4(0, netif); - /* set new netmask to netif */ - ip4_addr_set(ip_2_ip4(&netif->netmask), netmask); - IP_SET_TYPE_VAL(netif->netmask, IPADDR_TYPE_V4); - mib2_add_route_ip4(0, netif); - LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("netif: netmask of interface %c%c set to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - netif->name[0], netif->name[1], - ip4_addr1_16(netif_ip4_netmask(netif)), - ip4_addr2_16(netif_ip4_netmask(netif)), - ip4_addr3_16(netif_ip4_netmask(netif)), - ip4_addr4_16(netif_ip4_netmask(netif)))); - return 1; /* netmask changed */ - } - return 0; /* netmask unchanged */ -} - -/** - * @ingroup netif_ip4 - * Change the netmask of a network interface - * - * @param netif the network interface to change - * @param netmask the new netmask - * - * @note call netif_set_addr() if you also want to change ip address and - * default gateway - */ -void -netif_set_netmask(struct netif *netif, const ip4_addr_t *netmask) -{ -#if LWIP_NETIF_EXT_STATUS_CALLBACK - ip_addr_t old_nm_val; - ip_addr_t *old_nm = &old_nm_val; -#else - ip_addr_t *old_nm = NULL; -#endif - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("netif_set_netmask: invalid netif", netif != NULL, return); - - /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ - if (netmask == NULL) { - netmask = IP4_ADDR_ANY4; - } - - if (netif_do_set_netmask(netif, netmask, old_nm)) { -#if LWIP_NETIF_EXT_STATUS_CALLBACK - netif_ext_callback_args_t args; - args.ipv4_changed.old_netmask = old_nm; - netif_invoke_ext_callback(netif, LWIP_NSC_IPV4_NETMASK_CHANGED, &args); -#endif - } -} - -static int -netif_do_set_gw(struct netif *netif, const ip4_addr_t *gw, ip_addr_t *old_gw) -{ - /* address is actually being changed? */ - if (ip4_addr_cmp(gw, netif_ip4_gw(netif)) == 0) { -#if LWIP_NETIF_EXT_STATUS_CALLBACK - LWIP_ASSERT("invalid pointer", old_gw != NULL); - ip_addr_copy(*old_gw, *netif_ip_gw4(netif)); -#else - LWIP_UNUSED_ARG(old_gw); -#endif - - ip4_addr_set(ip_2_ip4(&netif->gw), gw); - IP_SET_TYPE_VAL(netif->gw, IPADDR_TYPE_V4); - LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("netif: GW address of interface %c%c set to %"U16_F".%"U16_F".%"U16_F".%"U16_F"\n", - netif->name[0], netif->name[1], - ip4_addr1_16(netif_ip4_gw(netif)), - ip4_addr2_16(netif_ip4_gw(netif)), - ip4_addr3_16(netif_ip4_gw(netif)), - ip4_addr4_16(netif_ip4_gw(netif)))); - return 1; /* gateway changed */ - } - return 0; /* gateway unchanged */ -} - -/** - * @ingroup netif_ip4 - * Change the default gateway for a network interface - * - * @param netif the network interface to change - * @param gw the new default gateway - * - * @note call netif_set_addr() if you also want to change ip address and netmask - */ -void -netif_set_gw(struct netif *netif, const ip4_addr_t *gw) -{ -#if LWIP_NETIF_EXT_STATUS_CALLBACK - ip_addr_t old_gw_val; - ip_addr_t *old_gw = &old_gw_val; -#else - ip_addr_t *old_gw = NULL; -#endif - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("netif_set_gw: invalid netif", netif != NULL, return); - - /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ - if (gw == NULL) { - gw = IP4_ADDR_ANY4; - } - - if (netif_do_set_gw(netif, gw, old_gw)) { -#if LWIP_NETIF_EXT_STATUS_CALLBACK - netif_ext_callback_args_t args; - args.ipv4_changed.old_gw = old_gw; - netif_invoke_ext_callback(netif, LWIP_NSC_IPV4_GATEWAY_CHANGED, &args); -#endif - } -} - -/** - * @ingroup netif_ip4 - * Change IP address configuration for a network interface (including netmask - * and default gateway). - * - * @param netif the network interface to change - * @param ipaddr the new IP address - * @param netmask the new netmask - * @param gw the new default gateway - */ -void -netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, - const ip4_addr_t *gw) -{ -#if LWIP_NETIF_EXT_STATUS_CALLBACK - netif_nsc_reason_t change_reason = LWIP_NSC_NONE; - netif_ext_callback_args_t cb_args; - ip_addr_t old_nm_val; - ip_addr_t old_gw_val; - ip_addr_t *old_nm = &old_nm_val; - ip_addr_t *old_gw = &old_gw_val; -#else - ip_addr_t *old_nm = NULL; - ip_addr_t *old_gw = NULL; -#endif - ip_addr_t old_addr; - int remove; - - LWIP_ASSERT_CORE_LOCKED(); - - /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ - if (ipaddr == NULL) { - ipaddr = IP4_ADDR_ANY4; - } - if (netmask == NULL) { - netmask = IP4_ADDR_ANY4; - } - if (gw == NULL) { - gw = IP4_ADDR_ANY4; - } - - remove = ip4_addr_isany(ipaddr); - if (remove) { - /* when removing an address, we have to remove it *before* changing netmask/gw - to ensure that tcp RST segment can be sent correctly */ - if (netif_do_set_ipaddr(netif, ipaddr, &old_addr)) { -#if LWIP_NETIF_EXT_STATUS_CALLBACK - change_reason |= LWIP_NSC_IPV4_ADDRESS_CHANGED; - cb_args.ipv4_changed.old_address = &old_addr; -#endif - } - } - if (netif_do_set_netmask(netif, netmask, old_nm)) { -#if LWIP_NETIF_EXT_STATUS_CALLBACK - change_reason |= LWIP_NSC_IPV4_NETMASK_CHANGED; - cb_args.ipv4_changed.old_netmask = old_nm; -#endif - } - if (netif_do_set_gw(netif, gw, old_gw)) { -#if LWIP_NETIF_EXT_STATUS_CALLBACK - change_reason |= LWIP_NSC_IPV4_GATEWAY_CHANGED; - cb_args.ipv4_changed.old_gw = old_gw; -#endif - } - if (!remove) { - /* set ipaddr last to ensure netmask/gw have been set when status callback is called */ - if (netif_do_set_ipaddr(netif, ipaddr, &old_addr)) { -#if LWIP_NETIF_EXT_STATUS_CALLBACK - change_reason |= LWIP_NSC_IPV4_ADDRESS_CHANGED; - cb_args.ipv4_changed.old_address = &old_addr; -#endif - } - } - -#if LWIP_NETIF_EXT_STATUS_CALLBACK - if (change_reason != LWIP_NSC_NONE) { - change_reason |= LWIP_NSC_IPV4_SETTINGS_CHANGED; - netif_invoke_ext_callback(netif, change_reason, &cb_args); - } -#endif -} -#endif /* LWIP_IPV4*/ - -/** - * @ingroup netif - * Remove a network interface from the list of lwIP netifs. - * - * @param netif the network interface to remove - */ -void -netif_remove(struct netif *netif) -{ -#if LWIP_IPV6 - int i; -#endif - - LWIP_ASSERT_CORE_LOCKED(); - - if (netif == NULL) { - return; - } - - netif_invoke_ext_callback(netif, LWIP_NSC_NETIF_REMOVED, NULL); - -#if LWIP_IPV4 - if (!ip4_addr_isany_val(*netif_ip4_addr(netif))) { - netif_do_ip_addr_changed(netif_ip_addr4(netif), NULL); - } - -#if LWIP_IGMP - /* stop IGMP processing */ - if (netif->flags & NETIF_FLAG_IGMP) { - igmp_stop(netif); - } -#endif /* LWIP_IGMP */ -#endif /* LWIP_IPV4*/ - -#if LWIP_IPV6 - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (ip6_addr_isvalid(netif_ip6_addr_state(netif, i))) { - netif_do_ip_addr_changed(netif_ip_addr6(netif, i), NULL); - } - } -#if LWIP_IPV6_MLD - /* stop MLD processing */ - mld6_stop(netif); -#endif /* LWIP_IPV6_MLD */ -#endif /* LWIP_IPV6 */ - if (netif_is_up(netif)) { - /* set netif down before removing (call callback function) */ - netif_set_down(netif); - } - - mib2_remove_ip4(netif); - - /* this netif is default? */ - if (netif_default == netif) { - /* reset default netif */ - netif_set_default(NULL); - } -#if !LWIP_SINGLE_NETIF - /* is it the first netif? */ - if (netif_list == netif) { - netif_list = netif->next; - } else { - /* look for netif further down the list */ - struct netif *tmp_netif; - NETIF_FOREACH(tmp_netif) { - if (tmp_netif->next == netif) { - tmp_netif->next = netif->next; - break; - } - } - if (tmp_netif == NULL) { - return; /* netif is not on the list */ - } - } -#endif /* !LWIP_SINGLE_NETIF */ - mib2_netif_removed(netif); -#if LWIP_NETIF_REMOVE_CALLBACK - if (netif->remove_callback) { - netif->remove_callback(netif); - } -#endif /* LWIP_NETIF_REMOVE_CALLBACK */ - LWIP_DEBUGF( NETIF_DEBUG, ("netif_remove: removed netif\n") ); -} - -/** - * @ingroup netif - * Set a network interface as the default network interface - * (used to output all packets for which no specific route is found) - * - * @param netif the default network interface - */ -void -netif_set_default(struct netif *netif) -{ - LWIP_ASSERT_CORE_LOCKED(); - - if (netif == NULL) { - /* remove default route */ - mib2_remove_route_ip4(1, netif); - } else { - /* install default route */ - mib2_add_route_ip4(1, netif); - } - netif_default = netif; - LWIP_DEBUGF(NETIF_DEBUG, ("netif: setting default interface %c%c\n", - netif ? netif->name[0] : '\'', netif ? netif->name[1] : '\'')); -} - -/** - * @ingroup netif - * Bring an interface up, available for processing - * traffic. - */ -void -netif_set_up(struct netif *netif) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("netif_set_up: invalid netif", netif != NULL, return); - - if (!(netif->flags & NETIF_FLAG_UP)) { - netif_set_flags(netif, NETIF_FLAG_UP); - - MIB2_COPY_SYSUPTIME_TO(&netif->ts); - - NETIF_STATUS_CALLBACK(netif); - -#if LWIP_NETIF_EXT_STATUS_CALLBACK - { - netif_ext_callback_args_t args; - args.status_changed.state = 1; - netif_invoke_ext_callback(netif, LWIP_NSC_STATUS_CHANGED, &args); - } -#endif - - netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV4 | NETIF_REPORT_TYPE_IPV6); -#if LWIP_IPV6 - nd6_restart_netif(netif); -#endif /* LWIP_IPV6 */ - } -} - -/** Send ARP/IGMP/MLD/RS events, e.g. on link-up/netif-up or addr-change - */ -static void -netif_issue_reports(struct netif *netif, u8_t report_type) -{ - LWIP_ASSERT("netif_issue_reports: invalid netif", netif != NULL); - - /* Only send reports when both link and admin states are up */ - if (!(netif->flags & NETIF_FLAG_LINK_UP) || - !(netif->flags & NETIF_FLAG_UP)) { - return; - } - -#if LWIP_IPV4 - if ((report_type & NETIF_REPORT_TYPE_IPV4) && - !ip4_addr_isany_val(*netif_ip4_addr(netif))) { -#if LWIP_ARP - /* For Ethernet network interfaces, we would like to send a "gratuitous ARP" */ - if (netif->flags & (NETIF_FLAG_ETHARP)) { - etharp_gratuitous(netif); - } -#endif /* LWIP_ARP */ - -#if LWIP_IGMP - /* resend IGMP memberships */ - if (netif->flags & NETIF_FLAG_IGMP) { - igmp_report_groups(netif); - } -#endif /* LWIP_IGMP */ - } -#endif /* LWIP_IPV4 */ - -#if LWIP_IPV6 - if (report_type & NETIF_REPORT_TYPE_IPV6) { -#if LWIP_IPV6_MLD - /* send mld memberships */ - mld6_report_groups(netif); -#endif /* LWIP_IPV6_MLD */ - } -#endif /* LWIP_IPV6 */ -} - -/** - * @ingroup netif - * Bring an interface down, disabling any traffic processing. - */ -void -netif_set_down(struct netif *netif) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("netif_set_down: invalid netif", netif != NULL, return); - - if (netif->flags & NETIF_FLAG_UP) { -#if LWIP_NETIF_EXT_STATUS_CALLBACK - { - netif_ext_callback_args_t args; - args.status_changed.state = 0; - netif_invoke_ext_callback(netif, LWIP_NSC_STATUS_CHANGED, &args); - } -#endif - - netif_clear_flags(netif, NETIF_FLAG_UP); - MIB2_COPY_SYSUPTIME_TO(&netif->ts); - -#if LWIP_IPV4 && LWIP_ARP - if (netif->flags & NETIF_FLAG_ETHARP) { - etharp_cleanup_netif(netif); - } -#endif /* LWIP_IPV4 && LWIP_ARP */ - -#if LWIP_IPV6 - nd6_cleanup_netif(netif); -#endif /* LWIP_IPV6 */ - - NETIF_STATUS_CALLBACK(netif); - } -} - -#if LWIP_NETIF_STATUS_CALLBACK -/** - * @ingroup netif - * Set callback to be called when interface is brought up/down or address is changed while up - */ -void -netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback) -{ - LWIP_ASSERT_CORE_LOCKED(); - - if (netif) { - netif->status_callback = status_callback; - } -} -#endif /* LWIP_NETIF_STATUS_CALLBACK */ - -#if LWIP_NETIF_REMOVE_CALLBACK -/** - * @ingroup netif - * Set callback to be called when the interface has been removed - */ -void -netif_set_remove_callback(struct netif *netif, netif_status_callback_fn remove_callback) -{ - LWIP_ASSERT_CORE_LOCKED(); - - if (netif) { - netif->remove_callback = remove_callback; - } -} -#endif /* LWIP_NETIF_REMOVE_CALLBACK */ - -/** - * @ingroup netif - * Called by a driver when its link goes up - */ -void -netif_set_link_up(struct netif *netif) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("netif_set_link_up: invalid netif", netif != NULL, return); - - if (!(netif->flags & NETIF_FLAG_LINK_UP)) { - netif_set_flags(netif, NETIF_FLAG_LINK_UP); - -#if LWIP_DHCP - dhcp_network_changed(netif); -#endif /* LWIP_DHCP */ - -#if LWIP_AUTOIP - autoip_network_changed(netif); -#endif /* LWIP_AUTOIP */ - - netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV4 | NETIF_REPORT_TYPE_IPV6); -#if LWIP_IPV6 - nd6_restart_netif(netif); -#endif /* LWIP_IPV6 */ - - NETIF_LINK_CALLBACK(netif); -#if LWIP_NETIF_EXT_STATUS_CALLBACK - { - netif_ext_callback_args_t args; - args.link_changed.state = 1; - netif_invoke_ext_callback(netif, LWIP_NSC_LINK_CHANGED, &args); - } -#endif - } -} - -/** - * @ingroup netif - * Called by a driver when its link goes down - */ -void -netif_set_link_down(struct netif *netif) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("netif_set_link_down: invalid netif", netif != NULL, return); - - if (netif->flags & NETIF_FLAG_LINK_UP) { - netif_clear_flags(netif, NETIF_FLAG_LINK_UP); - NETIF_LINK_CALLBACK(netif); -#if LWIP_NETIF_EXT_STATUS_CALLBACK - { - netif_ext_callback_args_t args; - args.link_changed.state = 0; - netif_invoke_ext_callback(netif, LWIP_NSC_LINK_CHANGED, &args); - } -#endif - } -} - -#if LWIP_NETIF_LINK_CALLBACK -/** - * @ingroup netif - * Set callback to be called when link is brought up/down - */ -void -netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callback) -{ - LWIP_ASSERT_CORE_LOCKED(); - - if (netif) { - netif->link_callback = link_callback; - } -} -#endif /* LWIP_NETIF_LINK_CALLBACK */ - -#if ENABLE_LOOPBACK -/** - * @ingroup netif - * Send an IP packet to be received on the same netif (loopif-like). - * The pbuf is simply copied and handed back to netif->input. - * In multithreaded mode, this is done directly since netif->input must put - * the packet on a queue. - * In callback mode, the packet is put on an internal queue and is fed to - * netif->input by netif_poll(). - * - * @param netif the lwip network interface structure - * @param p the (IP) packet to 'send' - * @return ERR_OK if the packet has been sent - * ERR_MEM if the pbuf used to copy the packet couldn't be allocated - */ -err_t -netif_loop_output(struct netif *netif, struct pbuf *p) -{ - struct pbuf *r; - err_t err; - struct pbuf *last; -#if LWIP_LOOPBACK_MAX_PBUFS - u16_t clen = 0; -#endif /* LWIP_LOOPBACK_MAX_PBUFS */ - /* If we have a loopif, SNMP counters are adjusted for it, - * if not they are adjusted for 'netif'. */ -#if MIB2_STATS -#if LWIP_HAVE_LOOPIF - struct netif *stats_if = &loop_netif; -#else /* LWIP_HAVE_LOOPIF */ - struct netif *stats_if = netif; -#endif /* LWIP_HAVE_LOOPIF */ -#endif /* MIB2_STATS */ -#if LWIP_NETIF_LOOPBACK_MULTITHREADING - u8_t schedule_poll = 0; -#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ - SYS_ARCH_DECL_PROTECT(lev); - - LWIP_ASSERT("netif_loop_output: invalid netif", netif != NULL); - LWIP_ASSERT("netif_loop_output: invalid pbuf", p != NULL); - - /* Allocate a new pbuf */ - r = pbuf_alloc(PBUF_LINK, p->tot_len, PBUF_RAM); - if (r == NULL) { - LINK_STATS_INC(link.memerr); - LINK_STATS_INC(link.drop); - MIB2_STATS_NETIF_INC(stats_if, ifoutdiscards); - return ERR_MEM; - } -#if LWIP_LOOPBACK_MAX_PBUFS - clen = pbuf_clen(r); - /* check for overflow or too many pbuf on queue */ - if (((netif->loop_cnt_current + clen) < netif->loop_cnt_current) || - ((netif->loop_cnt_current + clen) > LWIP_MIN(LWIP_LOOPBACK_MAX_PBUFS, 0xFFFF))) { - pbuf_free(r); - LINK_STATS_INC(link.memerr); - LINK_STATS_INC(link.drop); - MIB2_STATS_NETIF_INC(stats_if, ifoutdiscards); - return ERR_MEM; - } - netif->loop_cnt_current = (u16_t)(netif->loop_cnt_current + clen); -#endif /* LWIP_LOOPBACK_MAX_PBUFS */ - - /* Copy the whole pbuf queue p into the single pbuf r */ - if ((err = pbuf_copy(r, p)) != ERR_OK) { - pbuf_free(r); - LINK_STATS_INC(link.memerr); - LINK_STATS_INC(link.drop); - MIB2_STATS_NETIF_INC(stats_if, ifoutdiscards); - return err; - } - - /* Put the packet on a linked list which gets emptied through calling - netif_poll(). */ - - /* let last point to the last pbuf in chain r */ - for (last = r; last->next != NULL; last = last->next) { - /* nothing to do here, just get to the last pbuf */ - } - - SYS_ARCH_PROTECT(lev); - if (netif->loop_first != NULL) { - LWIP_ASSERT("if first != NULL, last must also be != NULL", netif->loop_last != NULL); - netif->loop_last->next = r; - netif->loop_last = last; - } else { - netif->loop_first = r; - netif->loop_last = last; -#if LWIP_NETIF_LOOPBACK_MULTITHREADING - /* No existing packets queued, schedule poll */ - schedule_poll = 1; -#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ - } - SYS_ARCH_UNPROTECT(lev); - - LINK_STATS_INC(link.xmit); - MIB2_STATS_NETIF_ADD(stats_if, ifoutoctets, p->tot_len); - MIB2_STATS_NETIF_INC(stats_if, ifoutucastpkts); - -#if LWIP_NETIF_LOOPBACK_MULTITHREADING - /* For multithreading environment, schedule a call to netif_poll */ - if (schedule_poll) { - tcpip_try_callback((tcpip_callback_fn)netif_poll, netif); - } -#endif /* LWIP_NETIF_LOOPBACK_MULTITHREADING */ - - return ERR_OK; -} - -#if LWIP_HAVE_LOOPIF -#if LWIP_IPV4 -static err_t -netif_loop_output_ipv4(struct netif *netif, struct pbuf *p, const ip4_addr_t *addr) -{ - LWIP_UNUSED_ARG(addr); - return netif_loop_output(netif, p); -} -#endif /* LWIP_IPV4 */ - -#if LWIP_IPV6 -static err_t -netif_loop_output_ipv6(struct netif *netif, struct pbuf *p, const ip6_addr_t *addr) -{ - LWIP_UNUSED_ARG(addr); - return netif_loop_output(netif, p); -} -#endif /* LWIP_IPV6 */ -#endif /* LWIP_HAVE_LOOPIF */ - - -/** - * Call netif_poll() in the main loop of your application. This is to prevent - * reentering non-reentrant functions like tcp_input(). Packets passed to - * netif_loop_output() are put on a list that is passed to netif->input() by - * netif_poll(). - */ -void -netif_poll(struct netif *netif) -{ - /* If we have a loopif, SNMP counters are adjusted for it, - * if not they are adjusted for 'netif'. */ -#if MIB2_STATS -#if LWIP_HAVE_LOOPIF - struct netif *stats_if = &loop_netif; -#else /* LWIP_HAVE_LOOPIF */ - struct netif *stats_if = netif; -#endif /* LWIP_HAVE_LOOPIF */ -#endif /* MIB2_STATS */ - SYS_ARCH_DECL_PROTECT(lev); - - LWIP_ASSERT("netif_poll: invalid netif", netif != NULL); - - /* Get a packet from the list. With SYS_LIGHTWEIGHT_PROT=1, this is protected */ - SYS_ARCH_PROTECT(lev); - while (netif->loop_first != NULL) { - struct pbuf *in, *in_end; -#if LWIP_LOOPBACK_MAX_PBUFS - u8_t clen = 1; -#endif /* LWIP_LOOPBACK_MAX_PBUFS */ - - in = in_end = netif->loop_first; - while (in_end->len != in_end->tot_len) { - LWIP_ASSERT("bogus pbuf: len != tot_len but next == NULL!", in_end->next != NULL); - in_end = in_end->next; -#if LWIP_LOOPBACK_MAX_PBUFS - clen++; -#endif /* LWIP_LOOPBACK_MAX_PBUFS */ - } -#if LWIP_LOOPBACK_MAX_PBUFS - /* adjust the number of pbufs on queue */ - LWIP_ASSERT("netif->loop_cnt_current underflow", - ((netif->loop_cnt_current - clen) < netif->loop_cnt_current)); - netif->loop_cnt_current = (u16_t)(netif->loop_cnt_current - clen); -#endif /* LWIP_LOOPBACK_MAX_PBUFS */ - - /* 'in_end' now points to the last pbuf from 'in' */ - if (in_end == netif->loop_last) { - /* this was the last pbuf in the list */ - netif->loop_first = netif->loop_last = NULL; - } else { - /* pop the pbuf off the list */ - netif->loop_first = in_end->next; - LWIP_ASSERT("should not be null since first != last!", netif->loop_first != NULL); - } - /* De-queue the pbuf from its successors on the 'loop_' list. */ - in_end->next = NULL; - SYS_ARCH_UNPROTECT(lev); - - in->if_idx = netif_get_index(netif); - - LINK_STATS_INC(link.recv); - MIB2_STATS_NETIF_ADD(stats_if, ifinoctets, in->tot_len); - MIB2_STATS_NETIF_INC(stats_if, ifinucastpkts); - /* loopback packets are always IP packets! */ - if (ip_input(in, netif) != ERR_OK) { - pbuf_free(in); - } - SYS_ARCH_PROTECT(lev); - } - SYS_ARCH_UNPROTECT(lev); -} - -#if !LWIP_NETIF_LOOPBACK_MULTITHREADING -/** - * Calls netif_poll() for every netif on the netif_list. - */ -void -netif_poll_all(void) -{ - struct netif *netif; - /* loop through netifs */ - NETIF_FOREACH(netif) { - netif_poll(netif); - } -} -#endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */ -#endif /* ENABLE_LOOPBACK */ - -#if LWIP_NUM_NETIF_CLIENT_DATA > 0 -/** - * @ingroup netif_cd - * Allocate an index to store data in client_data member of struct netif. - * Returned value is an index in mentioned array. - * @see LWIP_NUM_NETIF_CLIENT_DATA - */ -u8_t -netif_alloc_client_data_id(void) -{ - u8_t result = netif_client_id; - netif_client_id++; - - LWIP_ASSERT_CORE_LOCKED(); - -#if LWIP_NUM_NETIF_CLIENT_DATA > 256 -#error LWIP_NUM_NETIF_CLIENT_DATA must be <= 256 -#endif - LWIP_ASSERT("Increase LWIP_NUM_NETIF_CLIENT_DATA in lwipopts.h", result < LWIP_NUM_NETIF_CLIENT_DATA); - return (u8_t)(result + LWIP_NETIF_CLIENT_DATA_INDEX_MAX); -} -#endif - -#if LWIP_IPV6 -/** - * @ingroup netif_ip6 - * Change an IPv6 address of a network interface - * - * @param netif the network interface to change - * @param addr_idx index of the IPv6 address - * @param addr6 the new IPv6 address - * - * @note call netif_ip6_addr_set_state() to set the address valid/temptative - */ -void -netif_ip6_addr_set(struct netif *netif, s8_t addr_idx, const ip6_addr_t *addr6) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ASSERT("netif_ip6_addr_set: invalid netif", netif != NULL); - LWIP_ASSERT("netif_ip6_addr_set: invalid addr6", addr6 != NULL); - - netif_ip6_addr_set_parts(netif, addr_idx, addr6->addr[0], addr6->addr[1], - addr6->addr[2], addr6->addr[3]); -} - -/* - * Change an IPv6 address of a network interface (internal version taking 4 * u32_t) - * - * @param netif the network interface to change - * @param addr_idx index of the IPv6 address - * @param i0 word0 of the new IPv6 address - * @param i1 word1 of the new IPv6 address - * @param i2 word2 of the new IPv6 address - * @param i3 word3 of the new IPv6 address - */ -void -netif_ip6_addr_set_parts(struct netif *netif, s8_t addr_idx, u32_t i0, u32_t i1, u32_t i2, u32_t i3) -{ - ip_addr_t old_addr; - ip_addr_t new_ipaddr; - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ASSERT("netif != NULL", netif != NULL); - LWIP_ASSERT("invalid index", addr_idx < LWIP_IPV6_NUM_ADDRESSES); - - ip6_addr_copy(*ip_2_ip6(&old_addr), *netif_ip6_addr(netif, addr_idx)); - IP_SET_TYPE_VAL(old_addr, IPADDR_TYPE_V6); - - /* address is actually being changed? */ - if ((ip_2_ip6(&old_addr)->addr[0] != i0) || (ip_2_ip6(&old_addr)->addr[1] != i1) || - (ip_2_ip6(&old_addr)->addr[2] != i2) || (ip_2_ip6(&old_addr)->addr[3] != i3)) { - LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_STATE, ("netif_ip6_addr_set: netif address being changed\n")); - - IP_ADDR6(&new_ipaddr, i0, i1, i2, i3); - ip6_addr_assign_zone(ip_2_ip6(&new_ipaddr), IP6_UNICAST, netif); - - if (ip6_addr_isvalid(netif_ip6_addr_state(netif, addr_idx))) { - netif_do_ip_addr_changed(netif_ip_addr6(netif, addr_idx), &new_ipaddr); - } - /* @todo: remove/readd mib2 ip6 entries? */ - - ip_addr_copy(netif->ip6_addr[addr_idx], new_ipaddr); - - if (ip6_addr_isvalid(netif_ip6_addr_state(netif, addr_idx))) { - netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV6); - NETIF_STATUS_CALLBACK(netif); - } - -#if LWIP_NETIF_EXT_STATUS_CALLBACK - { - netif_ext_callback_args_t args; - args.ipv6_set.addr_index = addr_idx; - args.ipv6_set.old_address = &old_addr; - netif_invoke_ext_callback(netif, LWIP_NSC_IPV6_SET, &args); - } -#endif - } - - LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("netif: IPv6 address %d of interface %c%c set to %s/0x%"X8_F"\n", - addr_idx, netif->name[0], netif->name[1], ip6addr_ntoa(netif_ip6_addr(netif, addr_idx)), - netif_ip6_addr_state(netif, addr_idx))); -} - -/** - * @ingroup netif_ip6 - * Change the state of an IPv6 address of a network interface - * (INVALID, TEMPTATIVE, PREFERRED, DEPRECATED, where TEMPTATIVE - * includes the number of checks done, see ip6_addr.h) - * - * @param netif the network interface to change - * @param addr_idx index of the IPv6 address - * @param state the new IPv6 address state - */ -void -netif_ip6_addr_set_state(struct netif *netif, s8_t addr_idx, u8_t state) -{ - u8_t old_state; - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ASSERT("netif != NULL", netif != NULL); - LWIP_ASSERT("invalid index", addr_idx < LWIP_IPV6_NUM_ADDRESSES); - - old_state = netif_ip6_addr_state(netif, addr_idx); - /* state is actually being changed? */ - if (old_state != state) { - u8_t old_valid = old_state & IP6_ADDR_VALID; - u8_t new_valid = state & IP6_ADDR_VALID; - LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_STATE, ("netif_ip6_addr_set_state: netif address state being changed\n")); - -#if LWIP_IPV6_MLD - /* Reevaluate solicited-node multicast group membership. */ - if (netif->flags & NETIF_FLAG_MLD6) { - nd6_adjust_mld_membership(netif, addr_idx, state); - } -#endif /* LWIP_IPV6_MLD */ - - if (old_valid && !new_valid) { - /* address about to be removed by setting invalid */ - netif_do_ip_addr_changed(netif_ip_addr6(netif, addr_idx), NULL); - /* @todo: remove mib2 ip6 entries? */ - } - netif->ip6_addr_state[addr_idx] = state; - - if (!old_valid && new_valid) { - /* address added by setting valid */ - /* This is a good moment to check that the address is properly zoned. */ - IP6_ADDR_ZONECHECK_NETIF(netif_ip6_addr(netif, addr_idx), netif); - /* @todo: add mib2 ip6 entries? */ - netif_issue_reports(netif, NETIF_REPORT_TYPE_IPV6); - } - if ((old_state & ~IP6_ADDR_TENTATIVE_COUNT_MASK) != - (state & ~IP6_ADDR_TENTATIVE_COUNT_MASK)) { - /* address state has changed -> call the callback function */ - NETIF_STATUS_CALLBACK(netif); - } - -#if LWIP_NETIF_EXT_STATUS_CALLBACK - { - netif_ext_callback_args_t args; - args.ipv6_addr_state_changed.addr_index = addr_idx; - args.ipv6_addr_state_changed.old_state = old_state; - args.ipv6_addr_state_changed.address = netif_ip_addr6(netif, addr_idx); - netif_invoke_ext_callback(netif, LWIP_NSC_IPV6_ADDR_STATE_CHANGED, &args); - } -#endif - } - LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("netif: IPv6 address %d of interface %c%c set to %s/0x%"X8_F"\n", - addr_idx, netif->name[0], netif->name[1], ip6addr_ntoa(netif_ip6_addr(netif, addr_idx)), - netif_ip6_addr_state(netif, addr_idx))); -} - -/** - * Checks if a specific local address is present on the netif and returns its - * index. Depending on its state, it may or may not be assigned to the - * interface (as per RFC terminology). - * - * The given address may or may not be zoned (i.e., have a zone index other - * than IP6_NO_ZONE). If the address is zoned, it must have the correct zone - * for the given netif, or no match will be found. - * - * @param netif the netif to check - * @param ip6addr the IPv6 address to find - * @return >= 0: address found, this is its index - * -1: address not found on this netif - */ -s8_t -netif_get_ip6_addr_match(struct netif *netif, const ip6_addr_t *ip6addr) -{ - s8_t i; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ASSERT("netif_get_ip6_addr_match: invalid netif", netif != NULL); - LWIP_ASSERT("netif_get_ip6_addr_match: invalid ip6addr", ip6addr != NULL); - -#if LWIP_IPV6_SCOPES - if (ip6_addr_has_zone(ip6addr) && !ip6_addr_test_zone(ip6addr, netif)) { - return -1; /* wrong zone, no match */ - } -#endif /* LWIP_IPV6_SCOPES */ - - for (i = 0; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (!ip6_addr_isinvalid(netif_ip6_addr_state(netif, i)) && - ip6_addr_cmp_zoneless(netif_ip6_addr(netif, i), ip6addr)) { - return i; - } - } - return -1; -} - -/** - * @ingroup netif_ip6 - * Create a link-local IPv6 address on a netif (stored in slot 0) - * - * @param netif the netif to create the address on - * @param from_mac_48bit if != 0, assume hwadr is a 48-bit MAC address (std conversion) - * if == 0, use hwaddr directly as interface ID - */ -void -netif_create_ip6_linklocal_address(struct netif *netif, u8_t from_mac_48bit) -{ - u8_t i, addr_index; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ASSERT("netif_create_ip6_linklocal_address: invalid netif", netif != NULL); - - /* Link-local prefix. */ - ip_2_ip6(&netif->ip6_addr[0])->addr[0] = PP_HTONL(0xfe800000ul); - ip_2_ip6(&netif->ip6_addr[0])->addr[1] = 0; - - /* Generate interface ID. */ - if (from_mac_48bit) { - /* Assume hwaddr is a 48-bit IEEE 802 MAC. Convert to EUI-64 address. Complement Group bit. */ - ip_2_ip6(&netif->ip6_addr[0])->addr[2] = lwip_htonl((((u32_t)(netif->hwaddr[0] ^ 0x02)) << 24) | - ((u32_t)(netif->hwaddr[1]) << 16) | - ((u32_t)(netif->hwaddr[2]) << 8) | - (0xff)); - ip_2_ip6(&netif->ip6_addr[0])->addr[3] = lwip_htonl((u32_t)(0xfeul << 24) | - ((u32_t)(netif->hwaddr[3]) << 16) | - ((u32_t)(netif->hwaddr[4]) << 8) | - (netif->hwaddr[5])); - } else { - /* Use hwaddr directly as interface ID. */ - ip_2_ip6(&netif->ip6_addr[0])->addr[2] = 0; - ip_2_ip6(&netif->ip6_addr[0])->addr[3] = 0; - - addr_index = 3; - for (i = 0; (i < 8) && (i < netif->hwaddr_len); i++) { - if (i == 4) { - addr_index--; - } - ip_2_ip6(&netif->ip6_addr[0])->addr[addr_index] |= lwip_htonl(((u32_t)(netif->hwaddr[netif->hwaddr_len - i - 1])) << (8 * (i & 0x03))); - } - } - - /* Set a link-local zone. Even though the zone is implied by the owning - * netif, setting the zone anyway has two important conceptual advantages: - * 1) it avoids the need for a ton of exceptions in internal code, allowing - * e.g. ip6_addr_cmp() to be used on local addresses; - * 2) the properly zoned address is visible externally, e.g. when any outside - * code enumerates available addresses or uses one to bind a socket. - * Any external code unaware of address scoping is likely to just ignore the - * zone field, so this should not create any compatibility problems. */ - ip6_addr_assign_zone(ip_2_ip6(&netif->ip6_addr[0]), IP6_UNICAST, netif); - - /* Set address state. */ -#if LWIP_IPV6_DUP_DETECT_ATTEMPTS - /* Will perform duplicate address detection (DAD). */ - netif_ip6_addr_set_state(netif, 0, IP6_ADDR_TENTATIVE); -#else - /* Consider address valid. */ - netif_ip6_addr_set_state(netif, 0, IP6_ADDR_PREFERRED); -#endif /* LWIP_IPV6_AUTOCONFIG */ -} - -/** - * @ingroup netif_ip6 - * This function allows for the easy addition of a new IPv6 address to an interface. - * It takes care of finding an empty slot and then sets the address tentative - * (to make sure that all the subsequent processing happens). - * - * @param netif netif to add the address on - * @param ip6addr address to add - * @param chosen_idx if != NULL, the chosen IPv6 address index will be stored here - */ -err_t -netif_add_ip6_address(struct netif *netif, const ip6_addr_t *ip6addr, s8_t *chosen_idx) -{ - s8_t i; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ASSERT("netif_add_ip6_address: invalid netif", netif != NULL); - LWIP_ASSERT("netif_add_ip6_address: invalid ip6addr", ip6addr != NULL); - - i = netif_get_ip6_addr_match(netif, ip6addr); - if (i >= 0) { - /* Address already added */ - if (chosen_idx != NULL) { - *chosen_idx = i; - } - return ERR_OK; - } - - /* Find a free slot. The first one is reserved for link-local addresses. */ - for (i = ip6_addr_islinklocal(ip6addr) ? 0 : 1; i < LWIP_IPV6_NUM_ADDRESSES; i++) { - if (ip6_addr_isinvalid(netif_ip6_addr_state(netif, i))) { - ip_addr_copy_from_ip6(netif->ip6_addr[i], *ip6addr); - ip6_addr_assign_zone(ip_2_ip6(&netif->ip6_addr[i]), IP6_UNICAST, netif); - netif_ip6_addr_set_state(netif, i, IP6_ADDR_TENTATIVE); - if (chosen_idx != NULL) { - *chosen_idx = i; - } - return ERR_OK; - } - } - - if (chosen_idx != NULL) { - *chosen_idx = -1; - } - return ERR_VAL; -} - -/** Dummy IPv6 output function for netifs not supporting IPv6 - */ -static err_t -netif_null_output_ip6(struct netif *netif, struct pbuf *p, const ip6_addr_t *ipaddr) -{ - LWIP_UNUSED_ARG(netif); - LWIP_UNUSED_ARG(p); - LWIP_UNUSED_ARG(ipaddr); - - return ERR_IF; -} -#endif /* LWIP_IPV6 */ - -#if LWIP_IPV4 -/** Dummy IPv4 output function for netifs not supporting IPv4 - */ -static err_t -netif_null_output_ip4(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr) -{ - LWIP_UNUSED_ARG(netif); - LWIP_UNUSED_ARG(p); - LWIP_UNUSED_ARG(ipaddr); - - return ERR_IF; -} -#endif /* LWIP_IPV4 */ - -/** -* @ingroup netif -* Return the interface index for the netif with name -* or NETIF_NO_INDEX if not found/on error -* -* @param name the name of the netif -*/ -u8_t -netif_name_to_index(const char *name) -{ - struct netif *netif = netif_find(name); - if (netif != NULL) { - return netif_get_index(netif); - } - /* No name found, return invalid index */ - return NETIF_NO_INDEX; -} - -/** -* @ingroup netif -* Return the interface name for the netif matching index -* or NULL if not found/on error -* -* @param idx the interface index of the netif -* @param name char buffer of at least NETIF_NAMESIZE bytes -*/ -char * -netif_index_to_name(u8_t idx, char *name) -{ - struct netif *netif = netif_get_by_index(idx); - - if (netif != NULL) { - name[0] = netif->name[0]; - name[1] = netif->name[1]; - lwip_itoa(&name[2], NETIF_NAMESIZE - 2, netif_index_to_num(idx)); - return name; - } - return NULL; -} - -/** -* @ingroup netif -* Return the interface for the netif index -* -* @param idx index of netif to find -*/ -struct netif * -netif_get_by_index(u8_t idx) -{ - struct netif *netif; - - LWIP_ASSERT_CORE_LOCKED(); - - if (idx != NETIF_NO_INDEX) { - NETIF_FOREACH(netif) { - if (idx == netif_get_index(netif)) { - return netif; /* found! */ - } - } - } - - return NULL; -} - -/** - * @ingroup netif - * Find a network interface by searching for its name - * - * @param name the name of the netif (like netif->name) plus concatenated number - * in ascii representation (e.g. 'en0') - */ -struct netif * -netif_find(const char *name) -{ - struct netif *netif; - u8_t num; - - LWIP_ASSERT_CORE_LOCKED(); - - if (name == NULL) { - return NULL; - } - - num = (u8_t)atoi(&name[2]); - - NETIF_FOREACH(netif) { - if (num == netif->num && - name[0] == netif->name[0] && - name[1] == netif->name[1]) { - LWIP_DEBUGF(NETIF_DEBUG, ("netif_find: found %c%c\n", name[0], name[1])); - return netif; - } - } - LWIP_DEBUGF(NETIF_DEBUG, ("netif_find: didn't find %c%c\n", name[0], name[1])); - return NULL; -} - -#if LWIP_NETIF_EXT_STATUS_CALLBACK -/** - * @ingroup netif - * Add extended netif events listener - * @param callback pointer to listener structure - * @param fn callback function - */ -void -netif_add_ext_callback(netif_ext_callback_t *callback, netif_ext_callback_fn fn) -{ - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ASSERT("callback must be != NULL", callback != NULL); - LWIP_ASSERT("fn must be != NULL", fn != NULL); - - callback->callback_fn = fn; - callback->next = ext_callback; - ext_callback = callback; -} - -/** - * @ingroup netif - * Remove extended netif events listener - * @param callback pointer to listener structure - */ -void -netif_remove_ext_callback(netif_ext_callback_t* callback) -{ - netif_ext_callback_t *last, *iter; - - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ASSERT("callback must be != NULL", callback != NULL); - - if (ext_callback == NULL) { - return; - } - - if (callback == ext_callback) { - ext_callback = ext_callback->next; - } else { - last = ext_callback; - for (iter = ext_callback->next; iter != NULL; last = iter, iter = iter->next) { - if (iter == callback) { - LWIP_ASSERT("last != NULL", last != NULL); - last->next = callback->next; - callback->next = NULL; - return; - } - } - } -} - -/** - * Invoke extended netif status event - * @param netif netif that is affected by change - * @param reason change reason - * @param args depends on reason, see reason description - */ -void -netif_invoke_ext_callback(struct netif *netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t *args) -{ - netif_ext_callback_t *callback = ext_callback; - - LWIP_ASSERT("netif must be != NULL", netif != NULL); - - while (callback != NULL) { - callback->callback_fn(netif, reason, args); - callback = callback->next; - } -} -#endif /* LWIP_NETIF_EXT_STATUS_CALLBACK */ diff --git a/core/c/core/pbuf.c b/core/c/core/pbuf.c deleted file mode 100755 index 7579d86..0000000 --- a/core/c/core/pbuf.c +++ /dev/null @@ -1,1514 +0,0 @@ -/** - * @file - * Packet buffer management - */ - -/** - * @defgroup pbuf Packet buffers (PBUF) - * @ingroup infrastructure - * - * Packets are built from the pbuf data structure. It supports dynamic - * memory allocation for packet contents or can reference externally - * managed packet contents both in RAM and ROM. Quick allocation for - * incoming packets is provided through pools with fixed sized pbufs. - * - * A packet may span over multiple pbufs, chained as a singly linked - * list. This is called a "pbuf chain". - * - * Multiple packets may be queued, also using this singly linked list. - * This is called a "packet queue". - * - * So, a packet queue consists of one or more pbuf chains, each of - * which consist of one or more pbufs. CURRENTLY, PACKET QUEUES ARE - * NOT SUPPORTED!!! Use helper structs to queue multiple packets. - * - * The differences between a pbuf chain and a packet queue are very - * precise but subtle. - * - * The last pbuf of a packet has a ->tot_len field that equals the - * ->len field. It can be found by traversing the list. If the last - * pbuf of a packet has a ->next field other than NULL, more packets - * are on the queue. - * - * Therefore, looping through a pbuf of a single packet, has an - * loop end condition (tot_len == p->len), NOT (next == NULL). - * - * Example of custom pbuf usage: @ref zerocopyrx - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#include "lwip/pbuf.h" -#include "lwip/stats.h" -#include "lwip/def.h" -#include "lwip/mem.h" -#include "lwip/memp.h" -#include "lwip/sys.h" -#include "lwip/netif.h" -#if LWIP_TCP && TCP_QUEUE_OOSEQ -#include "lwip/priv/tcp_priv.h" -#endif -#if LWIP_CHECKSUM_ON_COPY -#include "lwip/inet_chksum.h" -#endif - -#include - -#define SIZEOF_STRUCT_PBUF LWIP_MEM_ALIGN_SIZE(sizeof(struct pbuf)) -/* Since the pool is created in memp, PBUF_POOL_BUFSIZE will be automatically - aligned there. Therefore, PBUF_POOL_BUFSIZE_ALIGNED can be used here. */ -#define PBUF_POOL_BUFSIZE_ALIGNED LWIP_MEM_ALIGN_SIZE(PBUF_POOL_BUFSIZE) - -static const struct pbuf * -pbuf_skip_const(const struct pbuf *in, u16_t in_offset, u16_t *out_offset); - -#if !LWIP_TCP || !TCP_QUEUE_OOSEQ || !PBUF_POOL_FREE_OOSEQ -#define PBUF_POOL_IS_EMPTY() -#else /* !LWIP_TCP || !TCP_QUEUE_OOSEQ || !PBUF_POOL_FREE_OOSEQ */ - -#if !NO_SYS -#ifndef PBUF_POOL_FREE_OOSEQ_QUEUE_CALL -#include "lwip/tcpip.h" -#define PBUF_POOL_FREE_OOSEQ_QUEUE_CALL() do { \ - if (tcpip_try_callback(pbuf_free_ooseq_callback, NULL) != ERR_OK) { \ - SYS_ARCH_PROTECT(old_level); \ - pbuf_free_ooseq_pending = 0; \ - SYS_ARCH_UNPROTECT(old_level); \ - } } while(0) -#endif /* PBUF_POOL_FREE_OOSEQ_QUEUE_CALL */ -#endif /* !NO_SYS */ - -volatile u8_t pbuf_free_ooseq_pending; -#define PBUF_POOL_IS_EMPTY() pbuf_pool_is_empty() - -/** - * Attempt to reclaim some memory from queued out-of-sequence TCP segments - * if we run out of pool pbufs. It's better to give priority to new packets - * if we're running out. - * - * This must be done in the correct thread context therefore this function - * can only be used with NO_SYS=0 and through tcpip_callback. - */ -#if !NO_SYS -static -#endif /* !NO_SYS */ -void -pbuf_free_ooseq(void) -{ - struct tcp_pcb *pcb; - SYS_ARCH_SET(pbuf_free_ooseq_pending, 0); - - for (pcb = tcp_active_pcbs; NULL != pcb; pcb = pcb->next) { - if (pcb->ooseq != NULL) { - /** Free the ooseq pbufs of one PCB only */ - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_free_ooseq: freeing out-of-sequence pbufs\n")); - tcp_free_ooseq(pcb); - return; - } - } -} - -#if !NO_SYS -/** - * Just a callback function for tcpip_callback() that calls pbuf_free_ooseq(). - */ -static void -pbuf_free_ooseq_callback(void *arg) -{ - LWIP_UNUSED_ARG(arg); - pbuf_free_ooseq(); -} -#endif /* !NO_SYS */ - -/** Queue a call to pbuf_free_ooseq if not already queued. */ -static void -pbuf_pool_is_empty(void) -{ -#ifndef PBUF_POOL_FREE_OOSEQ_QUEUE_CALL - SYS_ARCH_SET(pbuf_free_ooseq_pending, 1); -#else /* PBUF_POOL_FREE_OOSEQ_QUEUE_CALL */ - u8_t queued; - SYS_ARCH_DECL_PROTECT(old_level); - SYS_ARCH_PROTECT(old_level); - queued = pbuf_free_ooseq_pending; - pbuf_free_ooseq_pending = 1; - SYS_ARCH_UNPROTECT(old_level); - - if (!queued) { - /* queue a call to pbuf_free_ooseq if not already queued */ - PBUF_POOL_FREE_OOSEQ_QUEUE_CALL(); - } -#endif /* PBUF_POOL_FREE_OOSEQ_QUEUE_CALL */ -} -#endif /* !LWIP_TCP || !TCP_QUEUE_OOSEQ || !PBUF_POOL_FREE_OOSEQ */ - -/* Initialize members of struct pbuf after allocation */ -static void -pbuf_init_alloced_pbuf(struct pbuf *p, void *payload, u16_t tot_len, u16_t len, pbuf_type type, u8_t flags) -{ - p->next = NULL; - p->payload = payload; - p->tot_len = tot_len; - p->len = len; - p->type_internal = (u8_t)type; - p->flags = flags; - p->ref = 1; - p->if_idx = NETIF_NO_INDEX; -} - -/** - * @ingroup pbuf - * Allocates a pbuf of the given type (possibly a chain for PBUF_POOL type). - * - * The actual memory allocated for the pbuf is determined by the - * layer at which the pbuf is allocated and the requested size - * (from the size parameter). - * - * @param layer header size - * @param length size of the pbuf's payload - * @param type this parameter decides how and where the pbuf - * should be allocated as follows: - * - * - PBUF_RAM: buffer memory for pbuf is allocated as one large - * chunk. This includes protocol headers as well. - * - PBUF_ROM: no buffer memory is allocated for the pbuf, even for - * protocol headers. Additional headers must be prepended - * by allocating another pbuf and chain in to the front of - * the ROM pbuf. It is assumed that the memory used is really - * similar to ROM in that it is immutable and will not be - * changed. Memory which is dynamic should generally not - * be attached to PBUF_ROM pbufs. Use PBUF_REF instead. - * - PBUF_REF: no buffer memory is allocated for the pbuf, even for - * protocol headers. It is assumed that the pbuf is only - * being used in a single thread. If the pbuf gets queued, - * then pbuf_take should be called to copy the buffer. - * - PBUF_POOL: the pbuf is allocated as a pbuf chain, with pbufs from - * the pbuf pool that is allocated during pbuf_init(). - * - * @return the allocated pbuf. If multiple pbufs where allocated, this - * is the first pbuf of a pbuf chain. - */ -struct pbuf * -pbuf_alloc(pbuf_layer layer, u16_t length, pbuf_type type) -{ - struct pbuf *p; - u16_t offset = (u16_t)layer; - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_alloc(length=%"U16_F")\n", length)); - - switch (type) { - case PBUF_REF: /* fall through */ - case PBUF_ROM: - p = pbuf_alloc_reference(NULL, length, type); - break; - case PBUF_POOL: { - struct pbuf *q, *last; - u16_t rem_len; /* remaining length */ - p = NULL; - last = NULL; - rem_len = length; - do { - u16_t qlen; - q = (struct pbuf *)memp_malloc(MEMP_PBUF_POOL); - if (q == NULL) { - PBUF_POOL_IS_EMPTY(); - /* free chain so far allocated */ - if (p) { - pbuf_free(p); - } - /* bail out unsuccessfully */ - return NULL; - } - qlen = LWIP_MIN(rem_len, (u16_t)(PBUF_POOL_BUFSIZE_ALIGNED - LWIP_MEM_ALIGN_SIZE(offset))); - pbuf_init_alloced_pbuf(q, LWIP_MEM_ALIGN((void *)((u8_t *)q + SIZEOF_STRUCT_PBUF + offset)), - rem_len, qlen, type, 0); - LWIP_ASSERT("pbuf_alloc: pbuf q->payload properly aligned", - ((mem_ptr_t)q->payload % MEM_ALIGNMENT) == 0); - LWIP_ASSERT("PBUF_POOL_BUFSIZE must be bigger than MEM_ALIGNMENT", - (PBUF_POOL_BUFSIZE_ALIGNED - LWIP_MEM_ALIGN_SIZE(offset)) > 0 ); - if (p == NULL) { - /* allocated head of pbuf chain (into p) */ - p = q; - } else { - /* make previous pbuf point to this pbuf */ - last->next = q; - } - last = q; - rem_len = (u16_t)(rem_len - qlen); - offset = 0; - } while (rem_len > 0); - break; - } - case PBUF_RAM: { - u16_t payload_len = (u16_t)(LWIP_MEM_ALIGN_SIZE(offset) + LWIP_MEM_ALIGN_SIZE(length)); - mem_size_t alloc_len = (mem_size_t)(LWIP_MEM_ALIGN_SIZE(SIZEOF_STRUCT_PBUF) + payload_len); - - /* bug #50040: Check for integer overflow when calculating alloc_len */ - if ((payload_len < LWIP_MEM_ALIGN_SIZE(length)) || - (alloc_len < LWIP_MEM_ALIGN_SIZE(length))) { - return NULL; - } - - /* If pbuf is to be allocated in RAM, allocate memory for it. */ - p = (struct pbuf *)mem_malloc(alloc_len); - if (p == NULL) { - return NULL; - } - pbuf_init_alloced_pbuf(p, LWIP_MEM_ALIGN((void *)((u8_t *)p + SIZEOF_STRUCT_PBUF + offset)), - length, length, type, 0); - LWIP_ASSERT("pbuf_alloc: pbuf->payload properly aligned", - ((mem_ptr_t)p->payload % MEM_ALIGNMENT) == 0); - break; - } - default: - LWIP_ASSERT("pbuf_alloc: erroneous type", 0); - return NULL; - } - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_alloc(length=%"U16_F") == %p\n", length, (void *)p)); - return p; -} - -/** - * @ingroup pbuf - * Allocates a pbuf for referenced data. - * Referenced data can be volatile (PBUF_REF) or long-lived (PBUF_ROM). - * - * The actual memory allocated for the pbuf is determined by the - * layer at which the pbuf is allocated and the requested size - * (from the size parameter). - * - * @param payload referenced payload - * @param length size of the pbuf's payload - * @param type this parameter decides how and where the pbuf - * should be allocated as follows: - * - * - PBUF_ROM: It is assumed that the memory used is really - * similar to ROM in that it is immutable and will not be - * changed. Memory which is dynamic should generally not - * be attached to PBUF_ROM pbufs. Use PBUF_REF instead. - * - PBUF_REF: It is assumed that the pbuf is only - * being used in a single thread. If the pbuf gets queued, - * then pbuf_take should be called to copy the buffer. - * - * @return the allocated pbuf. - */ -struct pbuf * -pbuf_alloc_reference(void *payload, u16_t length, pbuf_type type) -{ - struct pbuf *p; - LWIP_ASSERT("invalid pbuf_type", (type == PBUF_REF) || (type == PBUF_ROM)); - /* only allocate memory for the pbuf structure */ - p = (struct pbuf *)memp_malloc(MEMP_PBUF); - if (p == NULL) { - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("pbuf_alloc_reference: Could not allocate MEMP_PBUF for PBUF_%s.\n", - (type == PBUF_ROM) ? "ROM" : "REF")); - return NULL; - } - pbuf_init_alloced_pbuf(p, payload, length, length, type, 0); - return p; -} - - -#if LWIP_SUPPORT_CUSTOM_PBUF -/** - * @ingroup pbuf - * Initialize a custom pbuf (already allocated). - * Example of custom pbuf usage: @ref zerocopyrx - * - * @param l header size - * @param length size of the pbuf's payload - * @param type type of the pbuf (only used to treat the pbuf accordingly, as - * this function allocates no memory) - * @param p pointer to the custom pbuf to initialize (already allocated) - * @param payload_mem pointer to the buffer that is used for payload and headers, - * must be at least big enough to hold 'length' plus the header size, - * may be NULL if set later. - * ATTENTION: The caller is responsible for correct alignment of this buffer!! - * @param payload_mem_len the size of the 'payload_mem' buffer, must be at least - * big enough to hold 'length' plus the header size - */ -struct pbuf * -pbuf_alloced_custom(pbuf_layer l, u16_t length, pbuf_type type, struct pbuf_custom *p, - void *payload_mem, u16_t payload_mem_len) -{ - u16_t offset = (u16_t)l; - void *payload; - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_alloced_custom(length=%"U16_F")\n", length)); - - if (LWIP_MEM_ALIGN_SIZE(offset) + length > payload_mem_len) { - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_LEVEL_WARNING, ("pbuf_alloced_custom(length=%"U16_F") buffer too short\n", length)); - return NULL; - } - - if (payload_mem != NULL) { - payload = (u8_t *)payload_mem + LWIP_MEM_ALIGN_SIZE(offset); - } else { - payload = NULL; - } - pbuf_init_alloced_pbuf(&p->pbuf, payload, length, length, type, PBUF_FLAG_IS_CUSTOM); - return &p->pbuf; -} -#endif /* LWIP_SUPPORT_CUSTOM_PBUF */ - -/** - * @ingroup pbuf - * Shrink a pbuf chain to a desired length. - * - * @param p pbuf to shrink. - * @param new_len desired new length of pbuf chain - * - * Depending on the desired length, the first few pbufs in a chain might - * be skipped and left unchanged. The new last pbuf in the chain will be - * resized, and any remaining pbufs will be freed. - * - * @note If the pbuf is ROM/REF, only the ->tot_len and ->len fields are adjusted. - * @note May not be called on a packet queue. - * - * @note Despite its name, pbuf_realloc cannot grow the size of a pbuf (chain). - */ -void -pbuf_realloc(struct pbuf *p, u16_t new_len) -{ - struct pbuf *q; - u16_t rem_len; /* remaining length */ - u16_t shrink; - - LWIP_ASSERT("pbuf_realloc: p != NULL", p != NULL); - - /* desired length larger than current length? */ - if (new_len >= p->tot_len) { - /* enlarging not yet supported */ - return; - } - - /* the pbuf chain grows by (new_len - p->tot_len) bytes - * (which may be negative in case of shrinking) */ - shrink = (u16_t)(p->tot_len - new_len); - - /* first, step over any pbufs that should remain in the chain */ - rem_len = new_len; - q = p; - /* should this pbuf be kept? */ - while (rem_len > q->len) { - /* decrease remaining length by pbuf length */ - rem_len = (u16_t)(rem_len - q->len); - /* decrease total length indicator */ - q->tot_len = (u16_t)(q->tot_len - shrink); - /* proceed to next pbuf in chain */ - q = q->next; - LWIP_ASSERT("pbuf_realloc: q != NULL", q != NULL); - } - /* we have now reached the new last pbuf (in q) */ - /* rem_len == desired length for pbuf q */ - - /* shrink allocated memory for PBUF_RAM */ - /* (other types merely adjust their length fields */ - if (pbuf_match_allocsrc(q, PBUF_TYPE_ALLOC_SRC_MASK_STD_HEAP) && (rem_len != q->len) -#if LWIP_SUPPORT_CUSTOM_PBUF - && ((q->flags & PBUF_FLAG_IS_CUSTOM) == 0) -#endif /* LWIP_SUPPORT_CUSTOM_PBUF */ - ) { - /* reallocate and adjust the length of the pbuf that will be split */ - q = (struct pbuf *)mem_trim(q, (mem_size_t)(((u8_t *)q->payload - (u8_t *)q) + rem_len)); - LWIP_ASSERT("mem_trim returned q == NULL", q != NULL); - } - /* adjust length fields for new last pbuf */ - q->len = rem_len; - q->tot_len = q->len; - - /* any remaining pbufs in chain? */ - if (q->next != NULL) { - /* free remaining pbufs in chain */ - pbuf_free(q->next); - } - /* q is last packet in chain */ - q->next = NULL; - -} - -/** - * Adjusts the payload pointer to reveal headers in the payload. - * @see pbuf_add_header. - * - * @param p pbuf to change the header size. - * @param header_size_increment Number of bytes to increment header size. - * @param force Allow 'header_size_increment > 0' for PBUF_REF/PBUF_ROM types - * - * @return non-zero on failure, zero on success. - * - */ -static u8_t -pbuf_add_header_impl(struct pbuf *p, size_t header_size_increment, u8_t force) -{ - u16_t type_internal; - void *payload; - u16_t increment_magnitude; - - LWIP_ASSERT("p != NULL", p != NULL); - if ((p == NULL) || (header_size_increment > 0xFFFF)) { - return 1; - } - if (header_size_increment == 0) { - return 0; - } - - increment_magnitude = (u16_t)header_size_increment; - /* Do not allow tot_len to wrap as a result. */ - if ((u16_t)(increment_magnitude + p->tot_len) < increment_magnitude) { - return 1; - } - - type_internal = p->type_internal; - - /* pbuf types containing payloads? */ - if (type_internal & PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS) { - /* set new payload pointer */ - payload = (u8_t *)p->payload - header_size_increment; - /* boundary check fails? */ - if ((u8_t *)payload < (u8_t *)p + SIZEOF_STRUCT_PBUF) { - LWIP_DEBUGF( PBUF_DEBUG | LWIP_DBG_TRACE, - ("pbuf_add_header: failed as %p < %p (not enough space for new header size)\n", - (void *)payload, (void *)((u8_t *)p + SIZEOF_STRUCT_PBUF))); - /* bail out unsuccessfully */ - return 1; - } - /* pbuf types referring to external payloads? */ - } else { - /* hide a header in the payload? */ - if (force) { - payload = (u8_t *)p->payload - header_size_increment; - } else { - /* cannot expand payload to front (yet!) - * bail out unsuccessfully */ - return 1; - } - } - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_add_header: old %p new %p (%"U16_F")\n", - (void *)p->payload, (void *)payload, increment_magnitude)); - - /* modify pbuf fields */ - p->payload = payload; - p->len = (u16_t)(p->len + increment_magnitude); - p->tot_len = (u16_t)(p->tot_len + increment_magnitude); - - - return 0; -} - -/** - * Adjusts the payload pointer to reveal headers in the payload. - * - * Adjusts the ->payload pointer so that space for a header - * appears in the pbuf payload. - * - * The ->payload, ->tot_len and ->len fields are adjusted. - * - * @param p pbuf to change the header size. - * @param header_size_increment Number of bytes to increment header size which - * increases the size of the pbuf. New space is on the front. - * If header_size_increment is 0, this function does nothing and returns successful. - * - * PBUF_ROM and PBUF_REF type buffers cannot have their sizes increased, so - * the call will fail. A check is made that the increase in header size does - * not move the payload pointer in front of the start of the buffer. - * - * @return non-zero on failure, zero on success. - * - */ -u8_t -pbuf_add_header(struct pbuf *p, size_t header_size_increment) -{ - return pbuf_add_header_impl(p, header_size_increment, 0); -} - -/** - * Same as @ref pbuf_add_header but does not check if 'header_size > 0' is allowed. - * This is used internally only, to allow PBUF_REF for RX. - */ -u8_t -pbuf_add_header_force(struct pbuf *p, size_t header_size_increment) -{ - return pbuf_add_header_impl(p, header_size_increment, 1); -} - -/** - * Adjusts the payload pointer to hide headers in the payload. - * - * Adjusts the ->payload pointer so that space for a header - * disappears in the pbuf payload. - * - * The ->payload, ->tot_len and ->len fields are adjusted. - * - * @param p pbuf to change the header size. - * @param header_size_decrement Number of bytes to decrement header size which - * decreases the size of the pbuf. - * If header_size_decrement is 0, this function does nothing and returns successful. - * @return non-zero on failure, zero on success. - * - */ -u8_t -pbuf_remove_header(struct pbuf *p, size_t header_size_decrement) -{ - void *payload; - u16_t increment_magnitude; - - LWIP_ASSERT("p != NULL", p != NULL); - if ((p == NULL) || (header_size_decrement > 0xFFFF)) { - return 1; - } - if (header_size_decrement == 0) { - return 0; - } - - increment_magnitude = (u16_t)header_size_decrement; - /* Check that we aren't going to move off the end of the pbuf */ - LWIP_ERROR("increment_magnitude <= p->len", (increment_magnitude <= p->len), return 1;); - - /* remember current payload pointer */ - payload = p->payload; - LWIP_UNUSED_ARG(payload); /* only used in LWIP_DEBUGF below */ - - /* increase payload pointer (guarded by length check above) */ - p->payload = (u8_t *)p->payload + header_size_decrement; - /* modify pbuf length fields */ - p->len = (u16_t)(p->len - increment_magnitude); - p->tot_len = (u16_t)(p->tot_len - increment_magnitude); - - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_remove_header: old %p new %p (%"U16_F")\n", - (void *)payload, (void *)p->payload, increment_magnitude)); - - return 0; -} - -static u8_t -pbuf_header_impl(struct pbuf *p, s16_t header_size_increment, u8_t force) -{ - if (header_size_increment < 0) { - return pbuf_remove_header(p, (size_t) - header_size_increment); - } else { - return pbuf_add_header_impl(p, (size_t)header_size_increment, force); - } -} - -/** - * Adjusts the payload pointer to hide or reveal headers in the payload. - * - * Adjusts the ->payload pointer so that space for a header - * (dis)appears in the pbuf payload. - * - * The ->payload, ->tot_len and ->len fields are adjusted. - * - * @param p pbuf to change the header size. - * @param header_size_increment Number of bytes to increment header size which - * increases the size of the pbuf. New space is on the front. - * (Using a negative value decreases the header size.) - * If header_size_increment is 0, this function does nothing and returns successful. - * - * PBUF_ROM and PBUF_REF type buffers cannot have their sizes increased, so - * the call will fail. A check is made that the increase in header size does - * not move the payload pointer in front of the start of the buffer. - * @return non-zero on failure, zero on success. - * - */ -u8_t -pbuf_header(struct pbuf *p, s16_t header_size_increment) -{ - return pbuf_header_impl(p, header_size_increment, 0); -} - -/** - * Same as pbuf_header but does not check if 'header_size > 0' is allowed. - * This is used internally only, to allow PBUF_REF for RX. - */ -u8_t -pbuf_header_force(struct pbuf *p, s16_t header_size_increment) -{ - return pbuf_header_impl(p, header_size_increment, 1); -} - -/** Similar to pbuf_header(-size) but de-refs header pbufs for (size >= p->len) - * - * @param q pbufs to operate on - * @param size The number of bytes to remove from the beginning of the pbuf list. - * While size >= p->len, pbufs are freed. - * ATTENTION: this is the opposite direction as @ref pbuf_header, but - * takes an u16_t not s16_t! - * @return the new head pbuf - */ -struct pbuf * -pbuf_free_header(struct pbuf *q, u16_t size) -{ - struct pbuf *p = q; - u16_t free_left = size; - while (free_left && p) { - if (free_left >= p->len) { - struct pbuf *f = p; - free_left = (u16_t)(free_left - p->len); - p = p->next; - f->next = 0; - pbuf_free(f); - } else { - pbuf_remove_header(p, free_left); - free_left = 0; - } - } - return p; -} - -/** - * @ingroup pbuf - * Dereference a pbuf chain or queue and deallocate any no-longer-used - * pbufs at the head of this chain or queue. - * - * Decrements the pbuf reference count. If it reaches zero, the pbuf is - * deallocated. - * - * For a pbuf chain, this is repeated for each pbuf in the chain, - * up to the first pbuf which has a non-zero reference count after - * decrementing. So, when all reference counts are one, the whole - * chain is free'd. - * - * @param p The pbuf (chain) to be dereferenced. - * - * @return the number of pbufs that were de-allocated - * from the head of the chain. - * - * @note MUST NOT be called on a packet queue (Not verified to work yet). - * @note the reference counter of a pbuf equals the number of pointers - * that refer to the pbuf (or into the pbuf). - * - * @internal examples: - * - * Assuming existing chains a->b->c with the following reference - * counts, calling pbuf_free(a) results in: - * - * 1->2->3 becomes ...1->3 - * 3->3->3 becomes 2->3->3 - * 1->1->2 becomes ......1 - * 2->1->1 becomes 1->1->1 - * 1->1->1 becomes ....... - * - */ -u8_t -pbuf_free(struct pbuf *p) -{ - u8_t alloc_src; - struct pbuf *q; - u8_t count; - - if (p == NULL) { - LWIP_ASSERT("p != NULL", p != NULL); - /* if assertions are disabled, proceed with debug output */ - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("pbuf_free(p == NULL) was called.\n")); - return 0; - } - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_free(%p)\n", (void *)p)); - - PERF_START; - - count = 0; - /* de-allocate all consecutive pbufs from the head of the chain that - * obtain a zero reference count after decrementing*/ - while (p != NULL) { - LWIP_PBUF_REF_T ref; - SYS_ARCH_DECL_PROTECT(old_level); - /* Since decrementing ref cannot be guaranteed to be a single machine operation - * we must protect it. We put the new ref into a local variable to prevent - * further protection. */ - SYS_ARCH_PROTECT(old_level); - /* all pbufs in a chain are referenced at least once */ - LWIP_ASSERT("pbuf_free: p->ref > 0", p->ref > 0); - /* decrease reference count (number of pointers to pbuf) */ - ref = --(p->ref); - SYS_ARCH_UNPROTECT(old_level); - /* this pbuf is no longer referenced to? */ - if (ref == 0) { - /* remember next pbuf in chain for next iteration */ - q = p->next; - LWIP_DEBUGF( PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_free: deallocating %p\n", (void *)p)); - alloc_src = pbuf_get_allocsrc(p); -#if LWIP_SUPPORT_CUSTOM_PBUF - /* is this a custom pbuf? */ - if ((p->flags & PBUF_FLAG_IS_CUSTOM) != 0) { - struct pbuf_custom *pc = (struct pbuf_custom *)p; - LWIP_ASSERT("pc->custom_free_function != NULL", pc->custom_free_function != NULL); - pc->custom_free_function(p); - } else -#endif /* LWIP_SUPPORT_CUSTOM_PBUF */ - { - /* is this a pbuf from the pool? */ - if (alloc_src == PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF_POOL) { - memp_free(MEMP_PBUF_POOL, p); - /* is this a ROM or RAM referencing pbuf? */ - } else if (alloc_src == PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF) { - memp_free(MEMP_PBUF, p); - /* type == PBUF_RAM */ - } else if (alloc_src == PBUF_TYPE_ALLOC_SRC_MASK_STD_HEAP) { - mem_free(p); - } else { - /* @todo: support freeing other types */ - LWIP_ASSERT("invalid pbuf type", 0); - } - } - count++; - /* proceed to next pbuf */ - p = q; - /* p->ref > 0, this pbuf is still referenced to */ - /* (and so the remaining pbufs in chain as well) */ - } else { - LWIP_DEBUGF( PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_free: %p has ref %"U16_F", ending here.\n", (void *)p, (u16_t)ref)); - /* stop walking through the chain */ - p = NULL; - } - } - PERF_STOP("pbuf_free"); - /* return number of de-allocated pbufs */ - return count; -} - -/** - * Count number of pbufs in a chain - * - * @param p first pbuf of chain - * @return the number of pbufs in a chain - */ -u16_t -pbuf_clen(const struct pbuf *p) -{ - u16_t len; - - len = 0; - while (p != NULL) { - ++len; - p = p->next; - } - return len; -} - -/** - * @ingroup pbuf - * Increment the reference count of the pbuf. - * - * @param p pbuf to increase reference counter of - * - */ -void -pbuf_ref(struct pbuf *p) -{ - /* pbuf given? */ - if (p != NULL) { - SYS_ARCH_SET(p->ref, (LWIP_PBUF_REF_T)(p->ref + 1)); - LWIP_ASSERT("pbuf ref overflow", p->ref > 0); - } -} - -/** - * @ingroup pbuf - * Concatenate two pbufs (each may be a pbuf chain) and take over - * the caller's reference of the tail pbuf. - * - * @note The caller MAY NOT reference the tail pbuf afterwards. - * Use pbuf_chain() for that purpose. - * - * This function explicitly does not check for tot_len overflow to prevent - * failing to queue too long pbufs. This can produce invalid pbufs, so - * handle with care! - * - * @see pbuf_chain() - */ -void -pbuf_cat(struct pbuf *h, struct pbuf *t) -{ - struct pbuf *p; - - LWIP_ERROR("(h != NULL) && (t != NULL) (programmer violates API)", - ((h != NULL) && (t != NULL)), return;); - - /* proceed to last pbuf of chain */ - for (p = h; p->next != NULL; p = p->next) { - /* add total length of second chain to all totals of first chain */ - p->tot_len = (u16_t)(p->tot_len + t->tot_len); - } - /* { p is last pbuf of first h chain, p->next == NULL } */ - LWIP_ASSERT("p->tot_len == p->len (of last pbuf in chain)", p->tot_len == p->len); - LWIP_ASSERT("p->next == NULL", p->next == NULL); - /* add total length of second chain to last pbuf total of first chain */ - p->tot_len = (u16_t)(p->tot_len + t->tot_len); - /* chain last pbuf of head (p) with first of tail (t) */ - p->next = t; - /* p->next now references t, but the caller will drop its reference to t, - * so netto there is no change to the reference count of t. - */ -} - -/** - * @ingroup pbuf - * Chain two pbufs (or pbuf chains) together. - * - * The caller MUST call pbuf_free(t) once it has stopped - * using it. Use pbuf_cat() instead if you no longer use t. - * - * @param h head pbuf (chain) - * @param t tail pbuf (chain) - * @note The pbufs MUST belong to the same packet. - * @note MAY NOT be called on a packet queue. - * - * The ->tot_len fields of all pbufs of the head chain are adjusted. - * The ->next field of the last pbuf of the head chain is adjusted. - * The ->ref field of the first pbuf of the tail chain is adjusted. - * - */ -void -pbuf_chain(struct pbuf *h, struct pbuf *t) -{ - pbuf_cat(h, t); - /* t is now referenced by h */ - pbuf_ref(t); - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_chain: %p references %p\n", (void *)h, (void *)t)); -} - -/** - * Dechains the first pbuf from its succeeding pbufs in the chain. - * - * Makes p->tot_len field equal to p->len. - * @param p pbuf to dechain - * @return remainder of the pbuf chain, or NULL if it was de-allocated. - * @note May not be called on a packet queue. - */ -struct pbuf * -pbuf_dechain(struct pbuf *p) -{ - struct pbuf *q; - u8_t tail_gone = 1; - /* tail */ - q = p->next; - /* pbuf has successor in chain? */ - if (q != NULL) { - /* assert tot_len invariant: (p->tot_len == p->len + (p->next? p->next->tot_len: 0) */ - LWIP_ASSERT("p->tot_len == p->len + q->tot_len", q->tot_len == p->tot_len - p->len); - /* enforce invariant if assertion is disabled */ - q->tot_len = (u16_t)(p->tot_len - p->len); - /* decouple pbuf from remainder */ - p->next = NULL; - /* total length of pbuf p is its own length only */ - p->tot_len = p->len; - /* q is no longer referenced by p, free it */ - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_dechain: unreferencing %p\n", (void *)q)); - tail_gone = pbuf_free(q); - if (tail_gone > 0) { - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, - ("pbuf_dechain: deallocated %p (as it is no longer referenced)\n", (void *)q)); - } - /* return remaining tail or NULL if deallocated */ - } - /* assert tot_len invariant: (p->tot_len == p->len + (p->next? p->next->tot_len: 0) */ - LWIP_ASSERT("p->tot_len == p->len", p->tot_len == p->len); - return ((tail_gone > 0) ? NULL : q); -} - -/** - * @ingroup pbuf - * Create PBUF_RAM copies of pbufs. - * - * Used to queue packets on behalf of the lwIP stack, such as - * ARP based queueing. - * - * @note You MUST explicitly use p = pbuf_take(p); - * - * @note Only one packet is copied, no packet queue! - * - * @param p_to pbuf destination of the copy - * @param p_from pbuf source of the copy - * - * @return ERR_OK if pbuf was copied - * ERR_ARG if one of the pbufs is NULL or p_to is not big - * enough to hold p_from - */ -err_t -pbuf_copy(struct pbuf *p_to, const struct pbuf *p_from) -{ - size_t offset_to = 0, offset_from = 0, len; - - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_copy(%p, %p)\n", - (const void *)p_to, (const void *)p_from)); - - /* is the target big enough to hold the source? */ - LWIP_ERROR("pbuf_copy: target not big enough to hold source", ((p_to != NULL) && - (p_from != NULL) && (p_to->tot_len >= p_from->tot_len)), return ERR_ARG;); - - /* iterate through pbuf chain */ - do { - /* copy one part of the original chain */ - if ((p_to->len - offset_to) >= (p_from->len - offset_from)) { - /* complete current p_from fits into current p_to */ - len = p_from->len - offset_from; - } else { - /* current p_from does not fit into current p_to */ - len = p_to->len - offset_to; - } - MEMCPY((u8_t *)p_to->payload + offset_to, (u8_t *)p_from->payload + offset_from, len); - offset_to += len; - offset_from += len; - LWIP_ASSERT("offset_to <= p_to->len", offset_to <= p_to->len); - LWIP_ASSERT("offset_from <= p_from->len", offset_from <= p_from->len); - if (offset_from >= p_from->len) { - /* on to next p_from (if any) */ - offset_from = 0; - p_from = p_from->next; - } - if (offset_to == p_to->len) { - /* on to next p_to (if any) */ - offset_to = 0; - p_to = p_to->next; - LWIP_ERROR("p_to != NULL", (p_to != NULL) || (p_from == NULL), return ERR_ARG;); - } - - if ((p_from != NULL) && (p_from->len == p_from->tot_len)) { - /* don't copy more than one packet! */ - LWIP_ERROR("pbuf_copy() does not allow packet queues!", - (p_from->next == NULL), return ERR_VAL;); - } - if ((p_to != NULL) && (p_to->len == p_to->tot_len)) { - /* don't copy more than one packet! */ - LWIP_ERROR("pbuf_copy() does not allow packet queues!", - (p_to->next == NULL), return ERR_VAL;); - } - } while (p_from); - LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_copy: end of chain reached.\n")); - return ERR_OK; -} - -/** - * @ingroup pbuf - * Copy (part of) the contents of a packet buffer - * to an application supplied buffer. - * - * @param buf the pbuf from which to copy data - * @param dataptr the application supplied buffer - * @param len length of data to copy (dataptr must be big enough). No more - * than buf->tot_len will be copied, irrespective of len - * @param offset offset into the packet buffer from where to begin copying len bytes - * @return the number of bytes copied, or 0 on failure - */ -u16_t -pbuf_copy_partial(const struct pbuf *buf, void *dataptr, u16_t len, u16_t offset) -{ - const struct pbuf *p; - u16_t left = 0; - u16_t buf_copy_len; - u16_t copied_total = 0; - - LWIP_ERROR("pbuf_copy_partial: invalid buf", (buf != NULL), return 0;); - LWIP_ERROR("pbuf_copy_partial: invalid dataptr", (dataptr != NULL), return 0;); - - /* Note some systems use byte copy if dataptr or one of the pbuf payload pointers are unaligned. */ - for (p = buf; len != 0 && p != NULL; p = p->next) { - if ((offset != 0) && (offset >= p->len)) { - /* don't copy from this buffer -> on to the next */ - offset = (u16_t)(offset - p->len); - } else { - /* copy from this buffer. maybe only partially. */ - buf_copy_len = (u16_t)(p->len - offset); - if (buf_copy_len > len) { - buf_copy_len = len; - } - /* copy the necessary parts of the buffer */ - MEMCPY(&((char *)dataptr)[left], &((char *)p->payload)[offset], buf_copy_len); - copied_total = (u16_t)(copied_total + buf_copy_len); - left = (u16_t)(left + buf_copy_len); - len = (u16_t)(len - buf_copy_len); - offset = 0; - } - } - return copied_total; -} - -/** - * @ingroup pbuf - * Get part of a pbuf's payload as contiguous memory. The returned memory is - * either a pointer into the pbuf's payload or, if split over multiple pbufs, - * a copy into the user-supplied buffer. - * - * @param p the pbuf from which to copy data - * @param buffer the application supplied buffer - * @param bufsize size of the application supplied buffer - * @param len length of data to copy (dataptr must be big enough). No more - * than buf->tot_len will be copied, irrespective of len - * @param offset offset into the packet buffer from where to begin copying len bytes - * @return the number of bytes copied, or 0 on failure - */ -void * -pbuf_get_contiguous(const struct pbuf *p, void *buffer, size_t bufsize, u16_t len, u16_t offset) -{ - const struct pbuf *q; - u16_t out_offset; - - LWIP_ERROR("pbuf_get_contiguous: invalid buf", (p != NULL), return NULL;); - LWIP_ERROR("pbuf_get_contiguous: invalid dataptr", (buffer != NULL), return NULL;); - LWIP_ERROR("pbuf_get_contiguous: invalid dataptr", (bufsize >= len), return NULL;); - - q = pbuf_skip_const(p, offset, &out_offset); - if (q != NULL) { - if (q->len >= (out_offset + len)) { - /* all data in this pbuf, return zero-copy */ - return (u8_t *)q->payload + out_offset; - } - /* need to copy */ - if (pbuf_copy_partial(q, buffer, len, out_offset) != len) { - /* copying failed: pbuf is too short */ - return NULL; - } - return buffer; - } - /* pbuf is too short (offset does not fit in) */ - return NULL; -} - -#if LWIP_TCP && TCP_QUEUE_OOSEQ && LWIP_WND_SCALE -/** - * This method modifies a 'pbuf chain', so that its total length is - * smaller than 64K. The remainder of the original pbuf chain is stored - * in *rest. - * This function never creates new pbufs, but splits an existing chain - * in two parts. The tot_len of the modified packet queue will likely be - * smaller than 64K. - * 'packet queues' are not supported by this function. - * - * @param p the pbuf queue to be split - * @param rest pointer to store the remainder (after the first 64K) - */ -void pbuf_split_64k(struct pbuf *p, struct pbuf **rest) -{ - *rest = NULL; - if ((p != NULL) && (p->next != NULL)) { - u16_t tot_len_front = p->len; - struct pbuf *i = p; - struct pbuf *r = p->next; - - /* continue until the total length (summed up as u16_t) overflows */ - while ((r != NULL) && ((u16_t)(tot_len_front + r->len) >= tot_len_front)) { - tot_len_front = (u16_t)(tot_len_front + r->len); - i = r; - r = r->next; - } - /* i now points to last packet of the first segment. Set next - pointer to NULL */ - i->next = NULL; - - if (r != NULL) { - /* Update the tot_len field in the first part */ - for (i = p; i != NULL; i = i->next) { - i->tot_len = (u16_t)(i->tot_len - r->tot_len); - LWIP_ASSERT("tot_len/len mismatch in last pbuf", - (i->next != NULL) || (i->tot_len == i->len)); - } - if (p->flags & PBUF_FLAG_TCP_FIN) { - r->flags |= PBUF_FLAG_TCP_FIN; - } - - /* tot_len field in rest does not need modifications */ - /* reference counters do not need modifications */ - *rest = r; - } - } -} -#endif /* LWIP_TCP && TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - -/* Actual implementation of pbuf_skip() but returning const pointer... */ -static const struct pbuf * -pbuf_skip_const(const struct pbuf *in, u16_t in_offset, u16_t *out_offset) -{ - u16_t offset_left = in_offset; - const struct pbuf *q = in; - - /* get the correct pbuf */ - while ((q != NULL) && (q->len <= offset_left)) { - offset_left = (u16_t)(offset_left - q->len); - q = q->next; - } - if (out_offset != NULL) { - *out_offset = offset_left; - } - return q; -} - -/** - * @ingroup pbuf - * Skip a number of bytes at the start of a pbuf - * - * @param in input pbuf - * @param in_offset offset to skip - * @param out_offset resulting offset in the returned pbuf - * @return the pbuf in the queue where the offset is - */ -struct pbuf * -pbuf_skip(struct pbuf *in, u16_t in_offset, u16_t *out_offset) -{ - const struct pbuf *out = pbuf_skip_const(in, in_offset, out_offset); - return LWIP_CONST_CAST(struct pbuf *, out); -} - -/** - * @ingroup pbuf - * Copy application supplied data into a pbuf. - * This function can only be used to copy the equivalent of buf->tot_len data. - * - * @param buf pbuf to fill with data - * @param dataptr application supplied data buffer - * @param len length of the application supplied data buffer - * - * @return ERR_OK if successful, ERR_MEM if the pbuf is not big enough - */ -err_t -pbuf_take(struct pbuf *buf, const void *dataptr, u16_t len) -{ - struct pbuf *p; - size_t buf_copy_len; - size_t total_copy_len = len; - size_t copied_total = 0; - - LWIP_ERROR("pbuf_take: invalid buf", (buf != NULL), return ERR_ARG;); - LWIP_ERROR("pbuf_take: invalid dataptr", (dataptr != NULL), return ERR_ARG;); - LWIP_ERROR("pbuf_take: buf not large enough", (buf->tot_len >= len), return ERR_MEM;); - - if ((buf == NULL) || (dataptr == NULL) || (buf->tot_len < len)) { - return ERR_ARG; - } - - /* Note some systems use byte copy if dataptr or one of the pbuf payload pointers are unaligned. */ - for (p = buf; total_copy_len != 0; p = p->next) { - LWIP_ASSERT("pbuf_take: invalid pbuf", p != NULL); - buf_copy_len = total_copy_len; - if (buf_copy_len > p->len) { - /* this pbuf cannot hold all remaining data */ - buf_copy_len = p->len; - } - /* copy the necessary parts of the buffer */ - MEMCPY(p->payload, &((const char *)dataptr)[copied_total], buf_copy_len); - total_copy_len -= buf_copy_len; - copied_total += buf_copy_len; - } - LWIP_ASSERT("did not copy all data", total_copy_len == 0 && copied_total == len); - return ERR_OK; -} - -/** - * @ingroup pbuf - * Same as pbuf_take() but puts data at an offset - * - * @param buf pbuf to fill with data - * @param dataptr application supplied data buffer - * @param len length of the application supplied data buffer - * @param offset offset in pbuf where to copy dataptr to - * - * @return ERR_OK if successful, ERR_MEM if the pbuf is not big enough - */ -err_t -pbuf_take_at(struct pbuf *buf, const void *dataptr, u16_t len, u16_t offset) -{ - u16_t target_offset; - struct pbuf *q = pbuf_skip(buf, offset, &target_offset); - - /* return requested data if pbuf is OK */ - if ((q != NULL) && (q->tot_len >= target_offset + len)) { - u16_t remaining_len = len; - const u8_t *src_ptr = (const u8_t *)dataptr; - /* copy the part that goes into the first pbuf */ - u16_t first_copy_len; - LWIP_ASSERT("check pbuf_skip result", target_offset < q->len); - first_copy_len = (u16_t)LWIP_MIN(q->len - target_offset, len); - MEMCPY(((u8_t *)q->payload) + target_offset, dataptr, first_copy_len); - remaining_len = (u16_t)(remaining_len - first_copy_len); - src_ptr += first_copy_len; - if (remaining_len > 0) { - return pbuf_take(q->next, src_ptr, remaining_len); - } - return ERR_OK; - } - return ERR_MEM; -} - -/** - * @ingroup pbuf - * Creates a single pbuf out of a queue of pbufs. - * - * @remark: Either the source pbuf 'p' is freed by this function or the original - * pbuf 'p' is returned, therefore the caller has to check the result! - * - * @param p the source pbuf - * @param layer pbuf_layer of the new pbuf - * - * @return a new, single pbuf (p->next is NULL) - * or the old pbuf if allocation fails - */ -struct pbuf * -pbuf_coalesce(struct pbuf *p, pbuf_layer layer) -{ - struct pbuf *q; - if (p->next == NULL) { - return p; - } - q = pbuf_clone(layer, PBUF_RAM, p); - if (q == NULL) { - /* @todo: what do we do now? */ - return p; - } - pbuf_free(p); - return q; -} - -/** - * @ingroup pbuf - * Allocates a new pbuf of same length (via pbuf_alloc()) and copies the source - * pbuf into this new pbuf (using pbuf_copy()). - * - * @param layer pbuf_layer of the new pbuf - * @param type this parameter decides how and where the pbuf should be allocated - * (@see pbuf_alloc()) - * @param p the source pbuf - * - * @return a new pbuf or NULL if allocation fails - */ -struct pbuf * -pbuf_clone(pbuf_layer layer, pbuf_type type, struct pbuf *p) -{ - struct pbuf *q; - err_t err; - q = pbuf_alloc(layer, p->tot_len, type); - if (q == NULL) { - return NULL; - } - err = pbuf_copy(q, p); - LWIP_UNUSED_ARG(err); /* in case of LWIP_NOASSERT */ - LWIP_ASSERT("pbuf_copy failed", err == ERR_OK); - return q; -} - -#if LWIP_CHECKSUM_ON_COPY -/** - * Copies data into a single pbuf (*not* into a pbuf queue!) and updates - * the checksum while copying - * - * @param p the pbuf to copy data into - * @param start_offset offset of p->payload where to copy the data to - * @param dataptr data to copy into the pbuf - * @param len length of data to copy into the pbuf - * @param chksum pointer to the checksum which is updated - * @return ERR_OK if successful, another error if the data does not fit - * within the (first) pbuf (no pbuf queues!) - */ -err_t -pbuf_fill_chksum(struct pbuf *p, u16_t start_offset, const void *dataptr, - u16_t len, u16_t *chksum) -{ - u32_t acc; - u16_t copy_chksum; - char *dst_ptr; - LWIP_ASSERT("p != NULL", p != NULL); - LWIP_ASSERT("dataptr != NULL", dataptr != NULL); - LWIP_ASSERT("chksum != NULL", chksum != NULL); - LWIP_ASSERT("len != 0", len != 0); - - if ((start_offset >= p->len) || (start_offset + len > p->len)) { - return ERR_ARG; - } - - dst_ptr = ((char *)p->payload) + start_offset; - copy_chksum = LWIP_CHKSUM_COPY(dst_ptr, dataptr, len); - if ((start_offset & 1) != 0) { - copy_chksum = SWAP_BYTES_IN_WORD(copy_chksum); - } - acc = *chksum; - acc += copy_chksum; - *chksum = FOLD_U32T(acc); - return ERR_OK; -} -#endif /* LWIP_CHECKSUM_ON_COPY */ - -/** - * @ingroup pbuf - * Get one byte from the specified position in a pbuf - * WARNING: returns zero for offset >= p->tot_len - * - * @param p pbuf to parse - * @param offset offset into p of the byte to return - * @return byte at an offset into p OR ZERO IF 'offset' >= p->tot_len - */ -u8_t -pbuf_get_at(const struct pbuf *p, u16_t offset) -{ - int ret = pbuf_try_get_at(p, offset); - if (ret >= 0) { - return (u8_t)ret; - } - return 0; -} - -/** - * @ingroup pbuf - * Get one byte from the specified position in a pbuf - * - * @param p pbuf to parse - * @param offset offset into p of the byte to return - * @return byte at an offset into p [0..0xFF] OR negative if 'offset' >= p->tot_len - */ -int -pbuf_try_get_at(const struct pbuf *p, u16_t offset) -{ - u16_t q_idx; - const struct pbuf *q = pbuf_skip_const(p, offset, &q_idx); - - /* return requested data if pbuf is OK */ - if ((q != NULL) && (q->len > q_idx)) { - return ((u8_t *)q->payload)[q_idx]; - } - return -1; -} - -/** - * @ingroup pbuf - * Put one byte to the specified position in a pbuf - * WARNING: silently ignores offset >= p->tot_len - * - * @param p pbuf to fill - * @param offset offset into p of the byte to write - * @param data byte to write at an offset into p - */ -void -pbuf_put_at(struct pbuf *p, u16_t offset, u8_t data) -{ - u16_t q_idx; - struct pbuf *q = pbuf_skip(p, offset, &q_idx); - - /* write requested data if pbuf is OK */ - if ((q != NULL) && (q->len > q_idx)) { - ((u8_t *)q->payload)[q_idx] = data; - } -} - -/** - * @ingroup pbuf - * Compare pbuf contents at specified offset with memory s2, both of length n - * - * @param p pbuf to compare - * @param offset offset into p at which to start comparing - * @param s2 buffer to compare - * @param n length of buffer to compare - * @return zero if equal, nonzero otherwise - * (0xffff if p is too short, diffoffset+1 otherwise) - */ -u16_t -pbuf_memcmp(const struct pbuf *p, u16_t offset, const void *s2, u16_t n) -{ - u16_t start = offset; - const struct pbuf *q = p; - u16_t i; - - /* pbuf long enough to perform check? */ - if (p->tot_len < (offset + n)) { - return 0xffff; - } - - /* get the correct pbuf from chain. We know it succeeds because of p->tot_len check above. */ - while ((q != NULL) && (q->len <= start)) { - start = (u16_t)(start - q->len); - q = q->next; - } - - /* return requested data if pbuf is OK */ - for (i = 0; i < n; i++) { - /* We know pbuf_get_at() succeeds because of p->tot_len check above. */ - u8_t a = pbuf_get_at(q, (u16_t)(start + i)); - u8_t b = ((const u8_t *)s2)[i]; - if (a != b) { - return (u16_t)LWIP_MIN(i + 1, 0xFFFF); - } - } - return 0; -} - -/** - * @ingroup pbuf - * Find occurrence of mem (with length mem_len) in pbuf p, starting at offset - * start_offset. - * - * @param p pbuf to search, maximum length is 0xFFFE since 0xFFFF is used as - * return value 'not found' - * @param mem search for the contents of this buffer - * @param mem_len length of 'mem' - * @param start_offset offset into p at which to start searching - * @return 0xFFFF if substr was not found in p or the index where it was found - */ -u16_t -pbuf_memfind(const struct pbuf *p, const void *mem, u16_t mem_len, u16_t start_offset) -{ - u16_t i; - u16_t max_cmp_start = (u16_t)(p->tot_len - mem_len); - if (p->tot_len >= mem_len + start_offset) { - for (i = start_offset; i <= max_cmp_start; i++) { - u16_t plus = pbuf_memcmp(p, i, mem, mem_len); - if (plus == 0) { - return i; - } - } - } - return 0xFFFF; -} - -/** - * Find occurrence of substr with length substr_len in pbuf p, start at offset - * start_offset - * WARNING: in contrast to strstr(), this one does not stop at the first \0 in - * the pbuf/source string! - * - * @param p pbuf to search, maximum length is 0xFFFE since 0xFFFF is used as - * return value 'not found' - * @param substr string to search for in p, maximum length is 0xFFFE - * @return 0xFFFF if substr was not found in p or the index where it was found - */ -u16_t -pbuf_strstr(const struct pbuf *p, const char *substr) -{ - size_t substr_len; - if ((substr == NULL) || (substr[0] == 0) || (p->tot_len == 0xFFFF)) { - return 0xFFFF; - } - substr_len = strlen(substr); - if (substr_len >= 0xFFFF) { - return 0xFFFF; - } - return pbuf_memfind(p, substr, (u16_t)substr_len, 0); -} diff --git a/core/c/core/raw.c b/core/c/core/raw.c deleted file mode 100755 index 7a42432..0000000 --- a/core/c/core/raw.c +++ /dev/null @@ -1,671 +0,0 @@ -/** - * @file - * Implementation of raw protocol PCBs for low-level handling of - * different types of protocols besides (or overriding) those - * already available in lwIP.\n - * See also @ref raw_raw - * - * @defgroup raw_raw RAW - * @ingroup callbackstyle_api - * Implementation of raw protocol PCBs for low-level handling of - * different types of protocols besides (or overriding) those - * already available in lwIP.\n - * @see @ref api - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/def.h" -#include "lwip/memp.h" -#include "lwip/ip_addr.h" -#include "lwip/netif.h" -#include "lwip/raw.h" -#include "lwip/priv/raw_priv.h" -#include "lwip/stats.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#include "lwip/inet_chksum.h" - -#include - -/** The list of RAW PCBs */ -static struct raw_pcb *raw_pcbs; - -static u8_t -raw_input_local_match(struct raw_pcb *pcb, u8_t broadcast) -{ - LWIP_UNUSED_ARG(broadcast); /* in IPv6 only case */ - - /* check if PCB is bound to specific netif */ - if ((pcb->netif_idx != NETIF_NO_INDEX) && - (pcb->netif_idx != netif_get_index(ip_data.current_input_netif))) { - return 0; - } - -#if LWIP_IPV4 && LWIP_IPV6 - /* Dual-stack: PCBs listening to any IP type also listen to any IP address */ - if (IP_IS_ANY_TYPE_VAL(pcb->local_ip)) { -#if IP_SOF_BROADCAST_RECV - if ((broadcast != 0) && !ip_get_option(pcb, SOF_BROADCAST)) { - return 0; - } -#endif /* IP_SOF_BROADCAST_RECV */ - return 1; - } -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - - /* Only need to check PCB if incoming IP version matches PCB IP version */ - if (IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ip_current_dest_addr())) { -#if LWIP_IPV4 - /* Special case: IPv4 broadcast: receive all broadcasts - * Note: broadcast variable can only be 1 if it is an IPv4 broadcast */ - if (broadcast != 0) { -#if IP_SOF_BROADCAST_RECV - if (ip_get_option(pcb, SOF_BROADCAST)) -#endif /* IP_SOF_BROADCAST_RECV */ - { - if (ip4_addr_isany(ip_2_ip4(&pcb->local_ip))) { - return 1; - } - } - } else -#endif /* LWIP_IPV4 */ - /* Handle IPv4 and IPv6: catch all or exact match */ - if (ip_addr_isany(&pcb->local_ip) || - ip_addr_cmp(&pcb->local_ip, ip_current_dest_addr())) { - return 1; - } - } - - return 0; -} - -/** - * Determine if in incoming IP packet is covered by a RAW PCB - * and if so, pass it to a user-provided receive callback function. - * - * Given an incoming IP datagram (as a chain of pbufs) this function - * finds a corresponding RAW PCB and calls the corresponding receive - * callback function. - * - * @param p pbuf to be demultiplexed to a RAW PCB. - * @param inp network interface on which the datagram was received. - * @return - 1 if the packet has been eaten by a RAW PCB receive - * callback function. The caller MAY NOT not reference the - * packet any longer, and MAY NOT call pbuf_free(). - * @return - 0 if packet is not eaten (pbuf is still referenced by the - * caller). - * - */ -raw_input_state_t -raw_input(struct pbuf *p, struct netif *inp) -{ - struct raw_pcb *pcb, *prev; - s16_t proto; - raw_input_state_t ret = RAW_INPUT_NONE; - u8_t broadcast = ip_addr_isbroadcast(ip_current_dest_addr(), ip_current_netif()); - - LWIP_UNUSED_ARG(inp); - -#if LWIP_IPV6 -#if LWIP_IPV4 - if (IP_HDR_GET_VERSION(p->payload) == 6) -#endif /* LWIP_IPV4 */ - { - struct ip6_hdr *ip6hdr = (struct ip6_hdr *)p->payload; - proto = IP6H_NEXTH(ip6hdr); - } -#if LWIP_IPV4 - else -#endif /* LWIP_IPV4 */ -#endif /* LWIP_IPV6 */ -#if LWIP_IPV4 - { - proto = IPH_PROTO((struct ip_hdr *)p->payload); - } -#endif /* LWIP_IPV4 */ - - prev = NULL; - pcb = raw_pcbs; - /* loop through all raw pcbs until the packet is eaten by one */ - /* this allows multiple pcbs to match against the packet by design */ - while (pcb != NULL) { - if ((pcb->protocol == proto) && raw_input_local_match(pcb, broadcast) && - (((pcb->flags & RAW_FLAGS_CONNECTED) == 0) || - ip_addr_cmp(&pcb->remote_ip, ip_current_src_addr()))) { - /* receive callback function available? */ - if (pcb->recv != NULL) { - u8_t eaten; -#ifndef LWIP_NOASSERT - void *old_payload = p->payload; -#endif - ret = RAW_INPUT_DELIVERED; - /* the receive callback function did not eat the packet? */ - eaten = pcb->recv(pcb->recv_arg, pcb, p, ip_current_src_addr()); - if (eaten != 0) { - /* receive function ate the packet */ - p = NULL; - if (prev != NULL) { - /* move the pcb to the front of raw_pcbs so that is - found faster next time */ - prev->next = pcb->next; - pcb->next = raw_pcbs; - raw_pcbs = pcb; - } - return RAW_INPUT_EATEN; - } else { - /* sanity-check that the receive callback did not alter the pbuf */ - LWIP_ASSERT("raw pcb recv callback altered pbuf payload pointer without eating packet", - p->payload == old_payload); - } - } - /* no receive callback function was set for this raw PCB */ - } - /* drop the packet */ - prev = pcb; - pcb = pcb->next; - } - return ret; -} - -/** - * @ingroup raw_raw - * Bind a RAW PCB. - * - * @param pcb RAW PCB to be bound with a local address ipaddr. - * @param ipaddr local IP address to bind with. Use IP4_ADDR_ANY to - * bind to all local interfaces. - * - * @return lwIP error code. - * - ERR_OK. Successful. No error occurred. - * - ERR_USE. The specified IP address is already bound to by - * another RAW PCB. - * - * @see raw_disconnect() - */ -err_t -raw_bind(struct raw_pcb *pcb, const ip_addr_t *ipaddr) -{ - LWIP_ASSERT_CORE_LOCKED(); - if ((pcb == NULL) || (ipaddr == NULL)) { - return ERR_VAL; - } - ip_addr_set_ipaddr(&pcb->local_ip, ipaddr); -#if LWIP_IPV6 && LWIP_IPV6_SCOPES - /* If the given IP address should have a zone but doesn't, assign one now. - * This is legacy support: scope-aware callers should always provide properly - * zoned source addresses. */ - if (IP_IS_V6(&pcb->local_ip) && - ip6_addr_lacks_zone(ip_2_ip6(&pcb->local_ip), IP6_UNKNOWN)) { - ip6_addr_select_zone(ip_2_ip6(&pcb->local_ip), ip_2_ip6(&pcb->local_ip)); - } -#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ - return ERR_OK; -} - -/** - * @ingroup raw_raw - * Bind an RAW PCB to a specific netif. - * After calling this function, all packets received via this PCB - * are guaranteed to have come in via the specified netif, and all - * outgoing packets will go out via the specified netif. - * - * @param pcb RAW PCB to be bound with netif. - * @param netif netif to bind to. Can be NULL. - * - * @see raw_disconnect() - */ -void -raw_bind_netif(struct raw_pcb *pcb, const struct netif *netif) -{ - LWIP_ASSERT_CORE_LOCKED(); - if (netif != NULL) { - pcb->netif_idx = netif_get_index(netif); - } else { - pcb->netif_idx = NETIF_NO_INDEX; - } -} - -/** - * @ingroup raw_raw - * Connect an RAW PCB. This function is required by upper layers - * of lwip. Using the raw api you could use raw_sendto() instead - * - * This will associate the RAW PCB with the remote address. - * - * @param pcb RAW PCB to be connected with remote address ipaddr and port. - * @param ipaddr remote IP address to connect with. - * - * @return lwIP error code - * - * @see raw_disconnect() and raw_sendto() - */ -err_t -raw_connect(struct raw_pcb *pcb, const ip_addr_t *ipaddr) -{ - LWIP_ASSERT_CORE_LOCKED(); - if ((pcb == NULL) || (ipaddr == NULL)) { - return ERR_VAL; - } - ip_addr_set_ipaddr(&pcb->remote_ip, ipaddr); -#if LWIP_IPV6 && LWIP_IPV6_SCOPES - /* If the given IP address should have a zone but doesn't, assign one now, - * using the bound address to make a more informed decision when possible. */ - if (IP_IS_V6(&pcb->remote_ip) && - ip6_addr_lacks_zone(ip_2_ip6(&pcb->remote_ip), IP6_UNKNOWN)) { - ip6_addr_select_zone(ip_2_ip6(&pcb->remote_ip), ip_2_ip6(&pcb->local_ip)); - } -#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ - raw_set_flags(pcb, RAW_FLAGS_CONNECTED); - return ERR_OK; -} - -/** - * @ingroup raw_raw - * Disconnect a RAW PCB. - * - * @param pcb the raw pcb to disconnect. - */ -void -raw_disconnect(struct raw_pcb *pcb) -{ - LWIP_ASSERT_CORE_LOCKED(); - /* reset remote address association */ -#if LWIP_IPV4 && LWIP_IPV6 - if (IP_IS_ANY_TYPE_VAL(pcb->local_ip)) { - ip_addr_copy(pcb->remote_ip, *IP_ANY_TYPE); - } else { -#endif - ip_addr_set_any(IP_IS_V6_VAL(pcb->remote_ip), &pcb->remote_ip); -#if LWIP_IPV4 && LWIP_IPV6 - } -#endif - pcb->netif_idx = NETIF_NO_INDEX; - /* mark PCB as unconnected */ - raw_clear_flags(pcb, RAW_FLAGS_CONNECTED); -} - -/** - * @ingroup raw_raw - * Set the callback function for received packets that match the - * raw PCB's protocol and binding. - * - * The callback function MUST either - * - eat the packet by calling pbuf_free() and returning non-zero. The - * packet will not be passed to other raw PCBs or other protocol layers. - * - not free the packet, and return zero. The packet will be matched - * against further PCBs and/or forwarded to another protocol layers. - */ -void -raw_recv(struct raw_pcb *pcb, raw_recv_fn recv, void *recv_arg) -{ - LWIP_ASSERT_CORE_LOCKED(); - /* remember recv() callback and user data */ - pcb->recv = recv; - pcb->recv_arg = recv_arg; -} - -/** - * @ingroup raw_raw - * Send the raw IP packet to the given address. An IP header will be prepended - * to the packet, unless the RAW_FLAGS_HDRINCL flag is set on the PCB. In that - * case, the packet must include an IP header, which will then be sent as is. - * - * @param pcb the raw pcb which to send - * @param p the IP payload to send - * @param ipaddr the destination address of the IP packet - * - */ -err_t -raw_sendto(struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *ipaddr) -{ - struct netif *netif; - const ip_addr_t *src_ip; - - if ((pcb == NULL) || (ipaddr == NULL) || !IP_ADDR_PCB_VERSION_MATCH(pcb, ipaddr)) { - return ERR_VAL; - } - - LWIP_DEBUGF(RAW_DEBUG | LWIP_DBG_TRACE, ("raw_sendto\n")); - - if (pcb->netif_idx != NETIF_NO_INDEX) { - netif = netif_get_by_index(pcb->netif_idx); - } else { -#if LWIP_MULTICAST_TX_OPTIONS - netif = NULL; - if (ip_addr_ismulticast(ipaddr)) { - /* For multicast-destined packets, use the user-provided interface index to - * determine the outgoing interface, if an interface index is set and a - * matching netif can be found. Otherwise, fall back to regular routing. */ - netif = netif_get_by_index(pcb->mcast_ifindex); - } - - if (netif == NULL) -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - { - netif = ip_route(&pcb->local_ip, ipaddr); - } - } - - if (netif == NULL) { - LWIP_DEBUGF(RAW_DEBUG | LWIP_DBG_LEVEL_WARNING, ("raw_sendto: No route to ")); - ip_addr_debug_print(RAW_DEBUG | LWIP_DBG_LEVEL_WARNING, ipaddr); - return ERR_RTE; - } - - if (ip_addr_isany(&pcb->local_ip) || ip_addr_ismulticast(&pcb->local_ip)) { - /* use outgoing network interface IP address as source address */ - src_ip = ip_netif_get_local_ip(netif, ipaddr); -#if LWIP_IPV6 - if (src_ip == NULL) { - return ERR_RTE; - } -#endif /* LWIP_IPV6 */ - } else { - /* use RAW PCB local IP address as source address */ - src_ip = &pcb->local_ip; - } - - return raw_sendto_if_src(pcb, p, ipaddr, netif, src_ip); -} - -/** - * @ingroup raw_raw - * Send the raw IP packet to the given address, using a particular outgoing - * netif and source IP address. An IP header will be prepended to the packet, - * unless the RAW_FLAGS_HDRINCL flag is set on the PCB. In that case, the - * packet must include an IP header, which will then be sent as is. - * - * @param pcb RAW PCB used to send the data - * @param p chain of pbufs to be sent - * @param dst_ip destination IP address - * @param netif the netif used for sending - * @param src_ip source IP address - */ -err_t -raw_sendto_if_src(struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, - struct netif *netif, const ip_addr_t *src_ip) -{ - err_t err; - struct pbuf *q; /* q will be sent down the stack */ - u16_t header_size; - u8_t ttl; - - LWIP_ASSERT_CORE_LOCKED(); - - if ((pcb == NULL) || (dst_ip == NULL) || (netif == NULL) || (src_ip == NULL) || - !IP_ADDR_PCB_VERSION_MATCH(pcb, src_ip) || !IP_ADDR_PCB_VERSION_MATCH(pcb, dst_ip)) { - return ERR_VAL; - } - - header_size = ( -#if LWIP_IPV4 && LWIP_IPV6 - IP_IS_V6(dst_ip) ? IP6_HLEN : IP_HLEN); -#elif LWIP_IPV4 - IP_HLEN); -#else - IP6_HLEN); -#endif - - /* Handle the HDRINCL option as an exception: none of the code below applies - * to this case, and sending the packet needs to be done differently too. */ - if (pcb->flags & RAW_FLAGS_HDRINCL) { - /* A full header *must* be present in the first pbuf of the chain, as the - * output routines may access its fields directly. */ - if (p->len < header_size) { - return ERR_VAL; - } - /* @todo multicast loop support, if at all desired for this scenario.. */ - NETIF_SET_HINTS(netif, &pcb->netif_hints); - err = ip_output_if_hdrincl(p, src_ip, dst_ip, netif); - NETIF_RESET_HINTS(netif); - return err; - } - - /* packet too large to add an IP header without causing an overflow? */ - if ((u16_t)(p->tot_len + header_size) < p->tot_len) { - return ERR_MEM; - } - /* not enough space to add an IP header to first pbuf in given p chain? */ - if (pbuf_add_header(p, header_size)) { - /* allocate header in new pbuf */ - q = pbuf_alloc(PBUF_IP, 0, PBUF_RAM); - /* new header pbuf could not be allocated? */ - if (q == NULL) { - LWIP_DEBUGF(RAW_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("raw_sendto: could not allocate header\n")); - return ERR_MEM; - } - if (p->tot_len != 0) { - /* chain header q in front of given pbuf p */ - pbuf_chain(q, p); - } - /* { first pbuf q points to header pbuf } */ - LWIP_DEBUGF(RAW_DEBUG, ("raw_sendto: added header pbuf %p before given pbuf %p\n", (void *)q, (void *)p)); - } else { - /* first pbuf q equals given pbuf */ - q = p; - if (pbuf_remove_header(q, header_size)) { - LWIP_ASSERT("Can't restore header we just removed!", 0); - return ERR_MEM; - } - } - -#if IP_SOF_BROADCAST - if (IP_IS_V4(dst_ip)) { - /* broadcast filter? */ - if (!ip_get_option(pcb, SOF_BROADCAST) && ip_addr_isbroadcast(dst_ip, netif)) { - LWIP_DEBUGF(RAW_DEBUG | LWIP_DBG_LEVEL_WARNING, ("raw_sendto: SOF_BROADCAST not enabled on pcb %p\n", (void *)pcb)); - /* free any temporary header pbuf allocated by pbuf_header() */ - if (q != p) { - pbuf_free(q); - } - return ERR_VAL; - } - } -#endif /* IP_SOF_BROADCAST */ - - /* Multicast Loop? */ -#if LWIP_MULTICAST_TX_OPTIONS - if (((pcb->flags & RAW_FLAGS_MULTICAST_LOOP) != 0) && ip_addr_ismulticast(dst_ip)) { - q->flags |= PBUF_FLAG_MCASTLOOP; - } -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - -#if LWIP_IPV6 - /* If requested, based on the IPV6_CHECKSUM socket option per RFC3542, - compute the checksum and update the checksum in the payload. */ - if (IP_IS_V6(dst_ip) && pcb->chksum_reqd) { - u16_t chksum = ip6_chksum_pseudo(p, pcb->protocol, p->tot_len, ip_2_ip6(src_ip), ip_2_ip6(dst_ip)); - LWIP_ASSERT("Checksum must fit into first pbuf", p->len >= (pcb->chksum_offset + 2)); - SMEMCPY(((u8_t *)p->payload) + pcb->chksum_offset, &chksum, sizeof(u16_t)); - } -#endif - - /* Determine TTL to use */ -#if LWIP_MULTICAST_TX_OPTIONS - ttl = (ip_addr_ismulticast(dst_ip) ? raw_get_multicast_ttl(pcb) : pcb->ttl); -#else /* LWIP_MULTICAST_TX_OPTIONS */ - ttl = pcb->ttl; -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - - NETIF_SET_HINTS(netif, &pcb->netif_hints); - err = ip_output_if(q, src_ip, dst_ip, ttl, pcb->tos, pcb->protocol, netif); - NETIF_RESET_HINTS(netif); - - /* did we chain a header earlier? */ - if (q != p) { - /* free the header */ - pbuf_free(q); - } - return err; -} - -/** - * @ingroup raw_raw - * Send the raw IP packet to the address given by raw_connect() - * - * @param pcb the raw pcb which to send - * @param p the IP payload to send - * - */ -err_t -raw_send(struct raw_pcb *pcb, struct pbuf *p) -{ - return raw_sendto(pcb, p, &pcb->remote_ip); -} - -/** - * @ingroup raw_raw - * Remove an RAW PCB. - * - * @param pcb RAW PCB to be removed. The PCB is removed from the list of - * RAW PCB's and the data structure is freed from memory. - * - * @see raw_new() - */ -void -raw_remove(struct raw_pcb *pcb) -{ - struct raw_pcb *pcb2; - LWIP_ASSERT_CORE_LOCKED(); - /* pcb to be removed is first in list? */ - if (raw_pcbs == pcb) { - /* make list start at 2nd pcb */ - raw_pcbs = raw_pcbs->next; - /* pcb not 1st in list */ - } else { - for (pcb2 = raw_pcbs; pcb2 != NULL; pcb2 = pcb2->next) { - /* find pcb in raw_pcbs list */ - if (pcb2->next != NULL && pcb2->next == pcb) { - /* remove pcb from list */ - pcb2->next = pcb->next; - break; - } - } - } - memp_free(MEMP_RAW_PCB, pcb); -} - -/** - * @ingroup raw_raw - * Create a RAW PCB. - * - * @return The RAW PCB which was created. NULL if the PCB data structure - * could not be allocated. - * - * @param proto the protocol number of the IPs payload (e.g. IP_PROTO_ICMP) - * - * @see raw_remove() - */ -struct raw_pcb * -raw_new(u8_t proto) -{ - struct raw_pcb *pcb; - - LWIP_DEBUGF(RAW_DEBUG | LWIP_DBG_TRACE, ("raw_new\n")); - LWIP_ASSERT_CORE_LOCKED(); - - pcb = (struct raw_pcb *)memp_malloc(MEMP_RAW_PCB); - /* could allocate RAW PCB? */ - if (pcb != NULL) { - /* initialize PCB to all zeroes */ - memset(pcb, 0, sizeof(struct raw_pcb)); - pcb->protocol = proto; - pcb->ttl = RAW_TTL; -#if LWIP_MULTICAST_TX_OPTIONS - raw_set_multicast_ttl(pcb, RAW_TTL); -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - pcb->next = raw_pcbs; - raw_pcbs = pcb; - } - return pcb; -} - -/** - * @ingroup raw_raw - * Create a RAW PCB for specific IP type. - * - * @return The RAW PCB which was created. NULL if the PCB data structure - * could not be allocated. - * - * @param type IP address type, see @ref lwip_ip_addr_type definitions. - * If you want to listen to IPv4 and IPv6 (dual-stack) packets, - * supply @ref IPADDR_TYPE_ANY as argument and bind to @ref IP_ANY_TYPE. - * @param proto the protocol number (next header) of the IPv6 packet payload - * (e.g. IP6_NEXTH_ICMP6) - * - * @see raw_remove() - */ -struct raw_pcb * -raw_new_ip_type(u8_t type, u8_t proto) -{ - struct raw_pcb *pcb; - LWIP_ASSERT_CORE_LOCKED(); - pcb = raw_new(proto); -#if LWIP_IPV4 && LWIP_IPV6 - if (pcb != NULL) { - IP_SET_TYPE_VAL(pcb->local_ip, type); - IP_SET_TYPE_VAL(pcb->remote_ip, type); - } -#else /* LWIP_IPV4 && LWIP_IPV6 */ - LWIP_UNUSED_ARG(type); -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - return pcb; -} - -/** This function is called from netif.c when address is changed - * - * @param old_addr IP address of the netif before change - * @param new_addr IP address of the netif after change - */ -void raw_netif_ip_addr_changed(const ip_addr_t *old_addr, const ip_addr_t *new_addr) -{ - struct raw_pcb *rpcb; - - if (!ip_addr_isany(old_addr) && !ip_addr_isany(new_addr)) { - for (rpcb = raw_pcbs; rpcb != NULL; rpcb = rpcb->next) { - /* PCB bound to current local interface address? */ - if (ip_addr_cmp(&rpcb->local_ip, old_addr)) { - /* The PCB is bound to the old ipaddr and - * is set to bound to the new one instead */ - ip_addr_copy(rpcb->local_ip, *new_addr); - } - } - } -} - -#endif /* LWIP_RAW */ diff --git a/core/c/core/stats.c b/core/c/core/stats.c deleted file mode 100755 index 4602842..0000000 --- a/core/c/core/stats.c +++ /dev/null @@ -1,169 +0,0 @@ -/** - * @file - * Statistics module - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#if LWIP_STATS /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/def.h" -#include "lwip/stats.h" -#include "lwip/mem.h" -#include "lwip/debug.h" - -#include - -struct stats_ lwip_stats; - -void -stats_init(void) -{ -#ifdef LWIP_DEBUG -#if MEM_STATS - lwip_stats.mem.name = "MEM"; -#endif /* MEM_STATS */ -#endif /* LWIP_DEBUG */ -} - -#if LWIP_STATS_DISPLAY -void -stats_display_proto(struct stats_proto *proto, const char *name) -{ - LWIP_PLATFORM_DIAG(("\n%s\n\t", name)); - LWIP_PLATFORM_DIAG(("xmit: %"STAT_COUNTER_F"\n\t", proto->xmit)); - LWIP_PLATFORM_DIAG(("recv: %"STAT_COUNTER_F"\n\t", proto->recv)); - LWIP_PLATFORM_DIAG(("fw: %"STAT_COUNTER_F"\n\t", proto->fw)); - LWIP_PLATFORM_DIAG(("drop: %"STAT_COUNTER_F"\n\t", proto->drop)); - LWIP_PLATFORM_DIAG(("chkerr: %"STAT_COUNTER_F"\n\t", proto->chkerr)); - LWIP_PLATFORM_DIAG(("lenerr: %"STAT_COUNTER_F"\n\t", proto->lenerr)); - LWIP_PLATFORM_DIAG(("memerr: %"STAT_COUNTER_F"\n\t", proto->memerr)); - LWIP_PLATFORM_DIAG(("rterr: %"STAT_COUNTER_F"\n\t", proto->rterr)); - LWIP_PLATFORM_DIAG(("proterr: %"STAT_COUNTER_F"\n\t", proto->proterr)); - LWIP_PLATFORM_DIAG(("opterr: %"STAT_COUNTER_F"\n\t", proto->opterr)); - LWIP_PLATFORM_DIAG(("err: %"STAT_COUNTER_F"\n\t", proto->err)); - LWIP_PLATFORM_DIAG(("cachehit: %"STAT_COUNTER_F"\n", proto->cachehit)); -} - -#if IGMP_STATS || MLD6_STATS -void -stats_display_igmp(struct stats_igmp *igmp, const char *name) -{ - LWIP_PLATFORM_DIAG(("\n%s\n\t", name)); - LWIP_PLATFORM_DIAG(("xmit: %"STAT_COUNTER_F"\n\t", igmp->xmit)); - LWIP_PLATFORM_DIAG(("recv: %"STAT_COUNTER_F"\n\t", igmp->recv)); - LWIP_PLATFORM_DIAG(("drop: %"STAT_COUNTER_F"\n\t", igmp->drop)); - LWIP_PLATFORM_DIAG(("chkerr: %"STAT_COUNTER_F"\n\t", igmp->chkerr)); - LWIP_PLATFORM_DIAG(("lenerr: %"STAT_COUNTER_F"\n\t", igmp->lenerr)); - LWIP_PLATFORM_DIAG(("memerr: %"STAT_COUNTER_F"\n\t", igmp->memerr)); - LWIP_PLATFORM_DIAG(("proterr: %"STAT_COUNTER_F"\n\t", igmp->proterr)); - LWIP_PLATFORM_DIAG(("rx_v1: %"STAT_COUNTER_F"\n\t", igmp->rx_v1)); - LWIP_PLATFORM_DIAG(("rx_group: %"STAT_COUNTER_F"\n\t", igmp->rx_group)); - LWIP_PLATFORM_DIAG(("rx_general: %"STAT_COUNTER_F"\n\t", igmp->rx_general)); - LWIP_PLATFORM_DIAG(("rx_report: %"STAT_COUNTER_F"\n\t", igmp->rx_report)); - LWIP_PLATFORM_DIAG(("tx_join: %"STAT_COUNTER_F"\n\t", igmp->tx_join)); - LWIP_PLATFORM_DIAG(("tx_leave: %"STAT_COUNTER_F"\n\t", igmp->tx_leave)); - LWIP_PLATFORM_DIAG(("tx_report: %"STAT_COUNTER_F"\n", igmp->tx_report)); -} -#endif /* IGMP_STATS || MLD6_STATS */ - -#if MEM_STATS || MEMP_STATS -void -stats_display_mem(struct stats_mem *mem, const char *name) -{ - LWIP_PLATFORM_DIAG(("\nMEM %s\n\t", name)); - LWIP_PLATFORM_DIAG(("avail: %"MEM_SIZE_F"\n\t", mem->avail)); - LWIP_PLATFORM_DIAG(("used: %"MEM_SIZE_F"\n\t", mem->used)); - LWIP_PLATFORM_DIAG(("max: %"MEM_SIZE_F"\n\t", mem->max)); - LWIP_PLATFORM_DIAG(("err: %"STAT_COUNTER_F"\n", mem->err)); -} - -#if MEMP_STATS -void -stats_display_memp(struct stats_mem *mem, int idx) -{ - if (idx < MEMP_MAX) { - stats_display_mem(mem, mem->name); - } -} -#endif /* MEMP_STATS */ -#endif /* MEM_STATS || MEMP_STATS */ - -#if SYS_STATS -void -stats_display_sys(struct stats_sys *sys) -{ - LWIP_PLATFORM_DIAG(("\nSYS\n\t")); - LWIP_PLATFORM_DIAG(("sem.used: %"STAT_COUNTER_F"\n\t", sys->sem.used)); - LWIP_PLATFORM_DIAG(("sem.max: %"STAT_COUNTER_F"\n\t", sys->sem.max)); - LWIP_PLATFORM_DIAG(("sem.err: %"STAT_COUNTER_F"\n\t", sys->sem.err)); - LWIP_PLATFORM_DIAG(("mutex.used: %"STAT_COUNTER_F"\n\t", sys->mutex.used)); - LWIP_PLATFORM_DIAG(("mutex.max: %"STAT_COUNTER_F"\n\t", sys->mutex.max)); - LWIP_PLATFORM_DIAG(("mutex.err: %"STAT_COUNTER_F"\n\t", sys->mutex.err)); - LWIP_PLATFORM_DIAG(("mbox.used: %"STAT_COUNTER_F"\n\t", sys->mbox.used)); - LWIP_PLATFORM_DIAG(("mbox.max: %"STAT_COUNTER_F"\n\t", sys->mbox.max)); - LWIP_PLATFORM_DIAG(("mbox.err: %"STAT_COUNTER_F"\n", sys->mbox.err)); -} -#endif /* SYS_STATS */ - -void -stats_display(void) -{ - s16_t i; - - LINK_STATS_DISPLAY(); - ETHARP_STATS_DISPLAY(); - IPFRAG_STATS_DISPLAY(); - IP6_FRAG_STATS_DISPLAY(); - IP_STATS_DISPLAY(); - ND6_STATS_DISPLAY(); - IP6_STATS_DISPLAY(); - IGMP_STATS_DISPLAY(); - MLD6_STATS_DISPLAY(); - ICMP_STATS_DISPLAY(); - ICMP6_STATS_DISPLAY(); - UDP_STATS_DISPLAY(); - TCP_STATS_DISPLAY(); - MEM_STATS_DISPLAY(); - for (i = 0; i < MEMP_MAX; i++) { - MEMP_STATS_DISPLAY(i); - } - SYS_STATS_DISPLAY(); -} -#endif /* LWIP_STATS_DISPLAY */ - -#endif /* LWIP_STATS */ - diff --git a/core/c/core/sys.c b/core/c/core/sys.c deleted file mode 100755 index b95f4bd..0000000 --- a/core/c/core/sys.c +++ /dev/null @@ -1,148 +0,0 @@ -/** - * @file - * lwIP Operating System abstraction - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -/** - * @defgroup sys_layer Porting (system abstraction layer) - * @ingroup lwip - * - * @defgroup sys_os OS abstraction layer - * @ingroup sys_layer - * No need to implement functions in this section in NO_SYS mode. - * The OS-specific code should be implemented in arch/sys_arch.h - * and sys_arch.c of your port. - * - * The operating system emulation layer provides a common interface - * between the lwIP code and the underlying operating system kernel. The - * general idea is that porting lwIP to new architectures requires only - * small changes to a few header files and a new sys_arch - * implementation. It is also possible to do a sys_arch implementation - * that does not rely on any underlying operating system. - * - * The sys_arch provides semaphores, mailboxes and mutexes to lwIP. For the full - * lwIP functionality, multiple threads support can be implemented in the - * sys_arch, but this is not required for the basic lwIP - * functionality. Timer scheduling is implemented in lwIP, but can be implemented - * by the sys_arch port (LWIP_TIMERS_CUSTOM==1). - * - * In addition to the source file providing the functionality of sys_arch, - * the OS emulation layer must provide several header files defining - * macros used throughout lwip. The files required and the macros they - * must define are listed below the sys_arch description. - * - * Since lwIP 1.4.0, semaphore, mutexes and mailbox functions are prototyped in a way that - * allows both using pointers or actual OS structures to be used. This way, memory - * required for such types can be either allocated in place (globally or on the - * stack) or on the heap (allocated internally in the "*_new()" functions). - * - * Note: - * ----- - * Be careful with using mem_malloc() in sys_arch. When malloc() refers to - * mem_malloc() you can run into a circular function call problem. In mem.c - * mem_init() tries to allocate a semaphore using mem_malloc, which of course - * can't be performed when sys_arch uses mem_malloc. - * - * @defgroup sys_sem Semaphores - * @ingroup sys_os - * Semaphores can be either counting or binary - lwIP works with both - * kinds. - * Semaphores are represented by the type "sys_sem_t" which is typedef'd - * in the sys_arch.h file. Mailboxes are equivalently represented by the - * type "sys_mbox_t". Mutexes are represented by the type "sys_mutex_t". - * lwIP does not place any restrictions on how these types are represented - * internally. - * - * @defgroup sys_mutex Mutexes - * @ingroup sys_os - * Mutexes are recommended to correctly handle priority inversion, - * especially if you use LWIP_CORE_LOCKING . - * - * @defgroup sys_mbox Mailboxes - * @ingroup sys_os - * Mailboxes should be implemented as a queue which allows multiple messages - * to be posted (implementing as a rendez-vous point where only one message can be - * posted at a time can have a highly negative impact on performance). A message - * in a mailbox is just a pointer, nothing more. - * - * @defgroup sys_time Time - * @ingroup sys_layer - * - * @defgroup sys_prot Critical sections - * @ingroup sys_layer - * Used to protect short regions of code against concurrent access. - * - Your system is a bare-metal system (probably with an RTOS) - * and interrupts are under your control: - * Implement this as LockInterrupts() / UnlockInterrupts() - * - Your system uses an RTOS with deferred interrupt handling from a - * worker thread: Implement as a global mutex or lock/unlock scheduler - * - Your system uses a high-level OS with e.g. POSIX signals: - * Implement as a global mutex - * - * @defgroup sys_misc Misc - * @ingroup sys_os - */ - -#include "lwip/opt.h" - -#include "lwip/sys.h" - -/* Most of the functions defined in sys.h must be implemented in the - * architecture-dependent file sys_arch.c */ - -#if !NO_SYS - -#ifndef sys_msleep -/** - * Sleep for some ms. Timeouts are NOT processed while sleeping. - * - * @param ms number of milliseconds to sleep - */ -void -sys_msleep(u32_t ms) -{ - if (ms > 0) { - sys_sem_t delaysem; - err_t err = sys_sem_new(&delaysem, 0); - if (err == ERR_OK) { - sys_arch_sem_wait(&delaysem, ms); - sys_sem_free(&delaysem); - } - } -} -#endif /* sys_msleep */ - -#endif /* !NO_SYS */ diff --git a/core/c/core/tcp.c b/core/c/core/tcp.c deleted file mode 100755 index 2ff37ef..0000000 --- a/core/c/core/tcp.c +++ /dev/null @@ -1,2686 +0,0 @@ -/** - * @file - * Transmission Control Protocol for IP - * See also @ref tcp_raw - * - * @defgroup tcp_raw TCP - * @ingroup callbackstyle_api - * Transmission Control Protocol for IP\n - * @see @ref api - * - * Common functions for the TCP implementation, such as functions - * for manipulating the data structures and the TCP timer functions. TCP functions - * related to input and output is found in tcp_in.c and tcp_out.c respectively.\n - * - * TCP connection setup - * -------------------- - * The functions used for setting up connections is similar to that of - * the sequential API and of the BSD socket API. A new TCP connection - * identifier (i.e., a protocol control block - PCB) is created with the - * tcp_new() function. This PCB can then be either set to listen for new - * incoming connections or be explicitly connected to another host. - * - tcp_new() - * - tcp_bind() - * - tcp_listen() and tcp_listen_with_backlog() - * - tcp_accept() - * - tcp_connect() - * - * Sending TCP data - * ---------------- - * TCP data is sent by enqueueing the data with a call to tcp_write() and - * triggering to send by calling tcp_output(). When the data is successfully - * transmitted to the remote host, the application will be notified with a - * call to a specified callback function. - * - tcp_write() - * - tcp_output() - * - tcp_sent() - * - * Receiving TCP data - * ------------------ - * TCP data reception is callback based - an application specified - * callback function is called when new data arrives. When the - * application has taken the data, it has to call the tcp_recved() - * function to indicate that TCP can advertise increase the receive - * window. - * - tcp_recv() - * - tcp_recved() - * - * Application polling - * ------------------- - * When a connection is idle (i.e., no data is either transmitted or - * received), lwIP will repeatedly poll the application by calling a - * specified callback function. This can be used either as a watchdog - * timer for killing connections that have stayed idle for too long, or - * as a method of waiting for memory to become available. For instance, - * if a call to tcp_write() has failed because memory wasn't available, - * the application may use the polling functionality to call tcp_write() - * again when the connection has been idle for a while. - * - tcp_poll() - * - * Closing and aborting connections - * -------------------------------- - * - tcp_close() - * - tcp_abort() - * - tcp_err() - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/def.h" -#include "lwip/mem.h" -#include "lwip/memp.h" -#include "lwip/tcp.h" -#include "lwip/priv/tcp_priv.h" -#include "lwip/debug.h" -#include "lwip/stats.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#include "lwip/nd6.h" - -#include - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif - -#ifndef TCP_LOCAL_PORT_RANGE_START -/* From http://www.iana.org/assignments/port-numbers: - "The Dynamic and/or Private Ports are those from 49152 through 65535" */ -#define TCP_LOCAL_PORT_RANGE_START 0xc000 -#define TCP_LOCAL_PORT_RANGE_END 0xffff -#define TCP_ENSURE_LOCAL_PORT_RANGE(port) ((u16_t)(((port) & (u16_t)~TCP_LOCAL_PORT_RANGE_START) + TCP_LOCAL_PORT_RANGE_START)) -#endif - -#if LWIP_TCP_KEEPALIVE -#define TCP_KEEP_DUR(pcb) ((pcb)->keep_cnt * (pcb)->keep_intvl) -#define TCP_KEEP_INTVL(pcb) ((pcb)->keep_intvl) -#else /* LWIP_TCP_KEEPALIVE */ -#define TCP_KEEP_DUR(pcb) TCP_MAXIDLE -#define TCP_KEEP_INTVL(pcb) TCP_KEEPINTVL_DEFAULT -#endif /* LWIP_TCP_KEEPALIVE */ - -/* As initial send MSS, we use TCP_MSS but limit it to 536. */ -#if TCP_MSS > 536 -#define INITIAL_MSS 536 -#else -#define INITIAL_MSS TCP_MSS -#endif - -static const char *const tcp_state_str[] = { - "CLOSED", - "LISTEN", - "SYN_SENT", - "SYN_RCVD", - "ESTABLISHED", - "FIN_WAIT_1", - "FIN_WAIT_2", - "CLOSE_WAIT", - "CLOSING", - "LAST_ACK", - "TIME_WAIT" -}; - -/* last local TCP port */ -static u16_t tcp_port = TCP_LOCAL_PORT_RANGE_START; - -/* Incremented every coarse grained timer shot (typically every 500 ms). */ -u32_t tcp_ticks; -static const u8_t tcp_backoff[13] = -{ 1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7}; -/* Times per slowtmr hits */ -static const u8_t tcp_persist_backoff[7] = { 3, 6, 12, 24, 48, 96, 120 }; - -/* The TCP PCB lists. */ - -/** List of all TCP PCBs bound but not yet (connected || listening) */ -struct tcp_pcb *tcp_bound_pcbs; -/** List of all TCP PCBs in LISTEN state */ -union tcp_listen_pcbs_t tcp_listen_pcbs; -/** List of all TCP PCBs that are in a state in which - * they accept or send data. */ -struct tcp_pcb *tcp_active_pcbs; -/** List of all TCP PCBs in TIME-WAIT state */ -struct tcp_pcb *tcp_tw_pcbs; - -/** An array with all (non-temporary) PCB lists, mainly used for smaller code size */ -struct tcp_pcb **const tcp_pcb_lists[] = {&tcp_listen_pcbs.pcbs, &tcp_bound_pcbs, - &tcp_active_pcbs, &tcp_tw_pcbs -}; - -u8_t tcp_active_pcbs_changed; - -/** Timer counter to handle calling slow-timer from tcp_tmr() */ -static u8_t tcp_timer; -static u8_t tcp_timer_ctr; -static u16_t tcp_new_port(void); - -static err_t tcp_close_shutdown_fin(struct tcp_pcb *pcb); -#if LWIP_TCP_PCB_NUM_EXT_ARGS -static void tcp_ext_arg_invoke_callbacks_destroyed(struct tcp_pcb_ext_args *ext_args); -#endif - -/** - * Initialize this module. - */ -void -tcp_init(void) -{ -#ifdef LWIP_RAND - tcp_port = TCP_ENSURE_LOCAL_PORT_RANGE(LWIP_RAND()); -#endif /* LWIP_RAND */ -} - -/** Free a tcp pcb */ -void -tcp_free(struct tcp_pcb *pcb) -{ - LWIP_ASSERT("tcp_free: LISTEN", pcb->state != LISTEN); -#if LWIP_TCP_PCB_NUM_EXT_ARGS - tcp_ext_arg_invoke_callbacks_destroyed(pcb->ext_args); -#endif - memp_free(MEMP_TCP_PCB, pcb); -} - -/** Free a tcp listen pcb */ -static void -tcp_free_listen(struct tcp_pcb *pcb) -{ - LWIP_ASSERT("tcp_free_listen: !LISTEN", pcb->state != LISTEN); -#if LWIP_TCP_PCB_NUM_EXT_ARGS - tcp_ext_arg_invoke_callbacks_destroyed(pcb->ext_args); -#endif - memp_free(MEMP_TCP_PCB_LISTEN, pcb); -} - -/** - * Called periodically to dispatch TCP timers. - */ -void -tcp_tmr(void) -{ - /* Call tcp_fasttmr() every 250 ms */ - tcp_fasttmr(); - - if (++tcp_timer & 1) { - /* Call tcp_slowtmr() every 500 ms, i.e., every other timer - tcp_tmr() is called. */ - tcp_slowtmr(); - } -} - -#if LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG -/** Called when a listen pcb is closed. Iterates one pcb list and removes the - * closed listener pcb from pcb->listener if matching. - */ -static void -tcp_remove_listener(struct tcp_pcb *list, struct tcp_pcb_listen *lpcb) -{ - struct tcp_pcb *pcb; - - LWIP_ASSERT("tcp_remove_listener: invalid listener", lpcb != NULL); - - for (pcb = list; pcb != NULL; pcb = pcb->next) { - if (pcb->listener == lpcb) { - pcb->listener = NULL; - } - } -} -#endif - -/** Called when a listen pcb is closed. Iterates all pcb lists and removes the - * closed listener pcb from pcb->listener if matching. - */ -static void -tcp_listen_closed(struct tcp_pcb *pcb) -{ -#if LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG - size_t i; - LWIP_ASSERT("pcb != NULL", pcb != NULL); - LWIP_ASSERT("pcb->state == LISTEN", pcb->state == LISTEN); - for (i = 1; i < LWIP_ARRAYSIZE(tcp_pcb_lists); i++) { - tcp_remove_listener(*tcp_pcb_lists[i], (struct tcp_pcb_listen *)pcb); - } -#endif - LWIP_UNUSED_ARG(pcb); -} - -#if TCP_LISTEN_BACKLOG -/** @ingroup tcp_raw - * Delay accepting a connection in respect to the listen backlog: - * the number of outstanding connections is increased until - * tcp_backlog_accepted() is called. - * - * ATTENTION: the caller is responsible for calling tcp_backlog_accepted() - * or else the backlog feature will get out of sync! - * - * @param pcb the connection pcb which is not fully accepted yet - */ -void -tcp_backlog_delayed(struct tcp_pcb *pcb) -{ - LWIP_ASSERT("pcb != NULL", pcb != NULL); - LWIP_ASSERT_CORE_LOCKED(); - if ((pcb->flags & TF_BACKLOGPEND) == 0) { - if (pcb->listener != NULL) { - pcb->listener->accepts_pending++; - LWIP_ASSERT("accepts_pending != 0", pcb->listener->accepts_pending != 0); - tcp_set_flags(pcb, TF_BACKLOGPEND); - } - } -} - -/** @ingroup tcp_raw - * A delayed-accept a connection is accepted (or closed/aborted): decreases - * the number of outstanding connections after calling tcp_backlog_delayed(). - * - * ATTENTION: the caller is responsible for calling tcp_backlog_accepted() - * or else the backlog feature will get out of sync! - * - * @param pcb the connection pcb which is now fully accepted (or closed/aborted) - */ -void -tcp_backlog_accepted(struct tcp_pcb *pcb) -{ - LWIP_ASSERT("pcb != NULL", pcb != NULL); - LWIP_ASSERT_CORE_LOCKED(); - if ((pcb->flags & TF_BACKLOGPEND) != 0) { - if (pcb->listener != NULL) { - LWIP_ASSERT("accepts_pending != 0", pcb->listener->accepts_pending != 0); - pcb->listener->accepts_pending--; - tcp_clear_flags(pcb, TF_BACKLOGPEND); - } - } -} -#endif /* TCP_LISTEN_BACKLOG */ - -/** - * Closes the TX side of a connection held by the PCB. - * For tcp_close(), a RST is sent if the application didn't receive all data - * (tcp_recved() not called for all data passed to recv callback). - * - * Listening pcbs are freed and may not be referenced any more. - * Connection pcbs are freed if not yet connected and may not be referenced - * any more. If a connection is established (at least SYN received or in - * a closing state), the connection is closed, and put in a closing state. - * The pcb is then automatically freed in tcp_slowtmr(). It is therefore - * unsafe to reference it. - * - * @param pcb the tcp_pcb to close - * @return ERR_OK if connection has been closed - * another err_t if closing failed and pcb is not freed - */ -static err_t -tcp_close_shutdown(struct tcp_pcb *pcb, u8_t rst_on_unacked_data) -{ - LWIP_ASSERT("tcp_close_shutdown: invalid pcb", pcb != NULL); - - if (rst_on_unacked_data && ((pcb->state == ESTABLISHED) || (pcb->state == CLOSE_WAIT))) { - if ((pcb->refused_data != NULL) || (pcb->rcv_wnd != TCP_WND_MAX(pcb))) { - /* Not all data received by application, send RST to tell the remote - side about this. */ - LWIP_ASSERT("pcb->flags & TF_RXCLOSED", pcb->flags & TF_RXCLOSED); - - /* don't call tcp_abort here: we must not deallocate the pcb since - that might not be expected when calling tcp_close */ - tcp_rst(pcb, pcb->snd_nxt, pcb->rcv_nxt, &pcb->local_ip, &pcb->remote_ip, - pcb->local_port, pcb->remote_port); - - tcp_pcb_purge(pcb); - TCP_RMV_ACTIVE(pcb); - /* Deallocate the pcb since we already sent a RST for it */ - if (tcp_input_pcb == pcb) { - /* prevent using a deallocated pcb: free it from tcp_input later */ - tcp_trigger_input_pcb_close(); - } else { - tcp_free(pcb); - } - return ERR_OK; - } - } - - /* - states which free the pcb are handled here, - - states which send FIN and change state are handled in tcp_close_shutdown_fin() */ - switch (pcb->state) { - case CLOSED: - /* Closing a pcb in the CLOSED state might seem erroneous, - * however, it is in this state once allocated and as yet unused - * and the user needs some way to free it should the need arise. - * Calling tcp_close() with a pcb that has already been closed, (i.e. twice) - * or for a pcb that has been used and then entered the CLOSED state - * is erroneous, but this should never happen as the pcb has in those cases - * been freed, and so any remaining handles are bogus. */ - if (pcb->local_port != 0) { - TCP_RMV(&tcp_bound_pcbs, pcb); - } - tcp_free(pcb); - break; - case LISTEN: - tcp_listen_closed(pcb); - tcp_pcb_remove(&tcp_listen_pcbs.pcbs, pcb); - tcp_free_listen(pcb); - break; - case SYN_SENT: - TCP_PCB_REMOVE_ACTIVE(pcb); - tcp_free(pcb); - MIB2_STATS_INC(mib2.tcpattemptfails); - break; - default: - return tcp_close_shutdown_fin(pcb); - } - return ERR_OK; -} - -static err_t -tcp_close_shutdown_fin(struct tcp_pcb *pcb) -{ - err_t err; - LWIP_ASSERT("pcb != NULL", pcb != NULL); - - switch (pcb->state) { - case SYN_RCVD: - err = tcp_send_fin(pcb); - if (err == ERR_OK) { - tcp_backlog_accepted(pcb); - MIB2_STATS_INC(mib2.tcpattemptfails); - pcb->state = FIN_WAIT_1; - } - break; - case ESTABLISHED: - err = tcp_send_fin(pcb); - if (err == ERR_OK) { - MIB2_STATS_INC(mib2.tcpestabresets); - pcb->state = FIN_WAIT_1; - } - break; - case CLOSE_WAIT: - err = tcp_send_fin(pcb); - if (err == ERR_OK) { - MIB2_STATS_INC(mib2.tcpestabresets); - pcb->state = LAST_ACK; - } - break; - default: - /* Has already been closed, do nothing. */ - return ERR_OK; - } - - if (err == ERR_OK) { - /* To ensure all data has been sent when tcp_close returns, we have - to make sure tcp_output doesn't fail. - Since we don't really have to ensure all data has been sent when tcp_close - returns (unsent data is sent from tcp timer functions, also), we don't care - for the return value of tcp_output for now. */ - tcp_output(pcb); - } else if (err == ERR_MEM) { - /* Mark this pcb for closing. Closing is retried from tcp_tmr. */ - tcp_set_flags(pcb, TF_CLOSEPEND); - /* We have to return ERR_OK from here to indicate to the callers that this - pcb should not be used any more as it will be freed soon via tcp_tmr. - This is OK here since sending FIN does not guarantee a time frime for - actually freeing the pcb, either (it is left in closure states for - remote ACK or timeout) */ - return ERR_OK; - } - return err; -} - -/** - * @ingroup tcp_raw - * Closes the connection held by the PCB. - * - * Listening pcbs are freed and may not be referenced any more. - * Connection pcbs are freed if not yet connected and may not be referenced - * any more. If a connection is established (at least SYN received or in - * a closing state), the connection is closed, and put in a closing state. - * The pcb is then automatically freed in tcp_slowtmr(). It is therefore - * unsafe to reference it (unless an error is returned). - * - * The function may return ERR_MEM if no memory - * was available for closing the connection. If so, the application - * should wait and try again either by using the acknowledgment - * callback or the polling functionality. If the close succeeds, the - * function returns ERR_OK. - * - * @param pcb the tcp_pcb to close - * @return ERR_OK if connection has been closed - * another err_t if closing failed and pcb is not freed - */ -err_t -tcp_close(struct tcp_pcb *pcb) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("tcp_close: invalid pcb", pcb != NULL, return ERR_ARG); - LWIP_DEBUGF(TCP_DEBUG, ("tcp_close: closing in ")); - - tcp_debug_print_state(pcb->state); - - if (pcb->state != LISTEN) { - /* Set a flag not to receive any more data... */ - tcp_set_flags(pcb, TF_RXCLOSED); - } - /* ... and close */ - return tcp_close_shutdown(pcb, 1); -} - -/** - * @ingroup tcp_raw - * Causes all or part of a full-duplex connection of this PCB to be shut down. - * This doesn't deallocate the PCB unless shutting down both sides! - * Shutting down both sides is the same as calling tcp_close, so if it succeds - * (i.e. returns ER_OK), the PCB must not be referenced any more! - * - * @param pcb PCB to shutdown - * @param shut_rx shut down receive side if this is != 0 - * @param shut_tx shut down send side if this is != 0 - * @return ERR_OK if shutdown succeeded (or the PCB has already been shut down) - * another err_t on error. - */ -err_t -tcp_shutdown(struct tcp_pcb *pcb, int shut_rx, int shut_tx) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("tcp_shutdown: invalid pcb", pcb != NULL, return ERR_ARG); - - if (pcb->state == LISTEN) { - return ERR_CONN; - } - if (shut_rx) { - /* shut down the receive side: set a flag not to receive any more data... */ - tcp_set_flags(pcb, TF_RXCLOSED); - if (shut_tx) { - /* shutting down the tx AND rx side is the same as closing for the raw API */ - return tcp_close_shutdown(pcb, 1); - } - /* ... and free buffered data */ - if (pcb->refused_data != NULL) { - pbuf_free(pcb->refused_data); - pcb->refused_data = NULL; - } - } - if (shut_tx) { - /* This can't happen twice since if it succeeds, the pcb's state is changed. - Only close in these states as the others directly deallocate the PCB */ - switch (pcb->state) { - case SYN_RCVD: - case ESTABLISHED: - case CLOSE_WAIT: - return tcp_close_shutdown(pcb, (u8_t)shut_rx); - default: - /* Not (yet?) connected, cannot shutdown the TX side as that would bring us - into CLOSED state, where the PCB is deallocated. */ - return ERR_CONN; - } - } - return ERR_OK; -} - -/** - * Abandons a connection and optionally sends a RST to the remote - * host. Deletes the local protocol control block. This is done when - * a connection is killed because of shortage of memory. - * - * @param pcb the tcp_pcb to abort - * @param reset boolean to indicate whether a reset should be sent - */ -void -tcp_abandon(struct tcp_pcb *pcb, int reset) -{ - u32_t seqno, ackno; -#if LWIP_CALLBACK_API - tcp_err_fn errf; -#endif /* LWIP_CALLBACK_API */ - void *errf_arg; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("tcp_abandon: invalid pcb", pcb != NULL, return); - - /* pcb->state LISTEN not allowed here */ - LWIP_ASSERT("don't call tcp_abort/tcp_abandon for listen-pcbs", - pcb->state != LISTEN); - /* Figure out on which TCP PCB list we are, and remove us. If we - are in an active state, call the receive function associated with - the PCB with a NULL argument, and send an RST to the remote end. */ - if (pcb->state == TIME_WAIT) { - tcp_pcb_remove(&tcp_tw_pcbs, pcb); - tcp_free(pcb); - } else { - int send_rst = 0; - u16_t local_port = 0; - enum tcp_state last_state; - seqno = pcb->snd_nxt; - ackno = pcb->rcv_nxt; -#if LWIP_CALLBACK_API - errf = pcb->errf; -#endif /* LWIP_CALLBACK_API */ - errf_arg = pcb->callback_arg; - if (pcb->state == CLOSED) { - if (pcb->local_port != 0) { - /* bound, not yet opened */ - TCP_RMV(&tcp_bound_pcbs, pcb); - } - } else { - send_rst = reset; - local_port = pcb->local_port; - TCP_PCB_REMOVE_ACTIVE(pcb); - } - if (pcb->unacked != NULL) { - tcp_segs_free(pcb->unacked); - } - if (pcb->unsent != NULL) { - tcp_segs_free(pcb->unsent); - } -#if TCP_QUEUE_OOSEQ - if (pcb->ooseq != NULL) { - tcp_segs_free(pcb->ooseq); - } -#endif /* TCP_QUEUE_OOSEQ */ - tcp_backlog_accepted(pcb); - if (send_rst) { - LWIP_DEBUGF(TCP_RST_DEBUG, ("tcp_abandon: sending RST\n")); - tcp_rst(pcb, seqno, ackno, &pcb->local_ip, &pcb->remote_ip, local_port, pcb->remote_port); - } - last_state = pcb->state; - tcp_free(pcb); - TCP_EVENT_ERR(last_state, errf, errf_arg, ERR_ABRT); - } -} - -/** - * @ingroup tcp_raw - * Aborts the connection by sending a RST (reset) segment to the remote - * host. The pcb is deallocated. This function never fails. - * - * ATTENTION: When calling this from one of the TCP callbacks, make - * sure you always return ERR_ABRT (and never return ERR_ABRT otherwise - * or you will risk accessing deallocated memory or memory leaks! - * - * @param pcb the tcp pcb to abort - */ -void -tcp_abort(struct tcp_pcb *pcb) -{ - tcp_abandon(pcb, 1); -} - -/** - * @ingroup tcp_raw - * Binds the connection to a local port number and IP address. If the - * IP address is not given (i.e., ipaddr == IP_ANY_TYPE), the connection is - * bound to all local IP addresses. - * If another connection is bound to the same port, the function will - * return ERR_USE, otherwise ERR_OK is returned. - * - * @param pcb the tcp_pcb to bind (no check is done whether this pcb is - * already bound!) - * @param ipaddr the local ip address to bind to (use IPx_ADDR_ANY to bind - * to any local address - * @param port the local port to bind to - * @return ERR_USE if the port is already in use - * ERR_VAL if bind failed because the PCB is not in a valid state - * ERR_OK if bound - */ -err_t -tcp_bind(struct tcp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port) -{ - int i; - int max_pcb_list = NUM_TCP_PCB_LISTS; - struct tcp_pcb *cpcb; -#if LWIP_IPV6 && LWIP_IPV6_SCOPES - ip_addr_t zoned_ipaddr; -#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ - - LWIP_ASSERT_CORE_LOCKED(); - -#if LWIP_IPV4 - /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ - if (ipaddr == NULL) { - ipaddr = IP4_ADDR_ANY; - } -#else /* LWIP_IPV4 */ - LWIP_ERROR("tcp_bind: invalid ipaddr", ipaddr != NULL, return ERR_ARG); -#endif /* LWIP_IPV4 */ - - LWIP_ERROR("tcp_bind: invalid pcb", pcb != NULL, return ERR_ARG); - - LWIP_ERROR("tcp_bind: can only bind in state CLOSED", pcb->state == CLOSED, return ERR_VAL); - -#if SO_REUSE - /* Unless the REUSEADDR flag is set, - we have to check the pcbs in TIME-WAIT state, also. - We do not dump TIME_WAIT pcb's; they can still be matched by incoming - packets using both local and remote IP addresses and ports to distinguish. - */ - if (ip_get_option(pcb, SOF_REUSEADDR)) { - max_pcb_list = NUM_TCP_PCB_LISTS_NO_TIME_WAIT; - } -#endif /* SO_REUSE */ - -#if LWIP_IPV6 && LWIP_IPV6_SCOPES - /* If the given IP address should have a zone but doesn't, assign one now. - * This is legacy support: scope-aware callers should always provide properly - * zoned source addresses. Do the zone selection before the address-in-use - * check below; as such we have to make a temporary copy of the address. */ - if (IP_IS_V6(ipaddr) && ip6_addr_lacks_zone(ip_2_ip6(ipaddr), IP6_UNICAST)) { - ip_addr_copy(zoned_ipaddr, *ipaddr); - ip6_addr_select_zone(ip_2_ip6(&zoned_ipaddr), ip_2_ip6(&zoned_ipaddr)); - ipaddr = &zoned_ipaddr; - } -#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ - - if (port == 0) { - port = tcp_new_port(); - if (port == 0) { - return ERR_BUF; - } - } else { - /* Check if the address already is in use (on all lists) */ - for (i = 0; i < max_pcb_list; i++) { - for (cpcb = *tcp_pcb_lists[i]; cpcb != NULL; cpcb = cpcb->next) { - if (cpcb->local_port == port) { -#if SO_REUSE - /* Omit checking for the same port if both pcbs have REUSEADDR set. - For SO_REUSEADDR, the duplicate-check for a 5-tuple is done in - tcp_connect. */ - if (!ip_get_option(pcb, SOF_REUSEADDR) || - !ip_get_option(cpcb, SOF_REUSEADDR)) -#endif /* SO_REUSE */ - { - /* @todo: check accept_any_ip_version */ - if ((IP_IS_V6(ipaddr) == IP_IS_V6_VAL(cpcb->local_ip)) && - (ip_addr_isany(&cpcb->local_ip) || - ip_addr_isany(ipaddr) || - ip_addr_cmp(&cpcb->local_ip, ipaddr))) { - return ERR_USE; - } - } - } - } - } - } - - if (!ip_addr_isany(ipaddr) -#if LWIP_IPV4 && LWIP_IPV6 - || (IP_GET_TYPE(ipaddr) != IP_GET_TYPE(&pcb->local_ip)) -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - ) { - ip_addr_set(&pcb->local_ip, ipaddr); - } - pcb->local_port = port; - TCP_REG(&tcp_bound_pcbs, pcb); - LWIP_DEBUGF(TCP_DEBUG, ("tcp_bind: bind to port %"U16_F"\n", port)); - return ERR_OK; -} - -/** - * @ingroup tcp_raw - * Binds the connection to a netif and IP address. - * After calling this function, all packets received via this PCB - * are guaranteed to have come in via the specified netif, and all - * outgoing packets will go out via the specified netif. - * - * @param pcb the tcp_pcb to bind. - * @param netif the netif to bind to. Can be NULL. - */ -void -tcp_bind_netif(struct tcp_pcb *pcb, const struct netif *netif) -{ - LWIP_ASSERT_CORE_LOCKED(); - if (netif != NULL) { - pcb->netif_idx = netif_get_index(netif); - } else { - pcb->netif_idx = NETIF_NO_INDEX; - } -} - -#if LWIP_CALLBACK_API -/** - * Default accept callback if no accept callback is specified by the user. - */ -static err_t -tcp_accept_null(void *arg, struct tcp_pcb *pcb, err_t err) -{ - LWIP_UNUSED_ARG(arg); - LWIP_UNUSED_ARG(err); - - LWIP_ASSERT("tcp_accept_null: invalid pcb", pcb != NULL); - - tcp_abort(pcb); - - return ERR_ABRT; -} -#endif /* LWIP_CALLBACK_API */ - -/** - * @ingroup tcp_raw - * Set the state of the connection to be LISTEN, which means that it - * is able to accept incoming connections. The protocol control block - * is reallocated in order to consume less memory. Setting the - * connection to LISTEN is an irreversible process. - * When an incoming connection is accepted, the function specified with - * the tcp_accept() function will be called. The pcb has to be bound - * to a local port with the tcp_bind() function. - * - * The tcp_listen() function returns a new connection identifier, and - * the one passed as an argument to the function will be - * deallocated. The reason for this behavior is that less memory is - * needed for a connection that is listening, so tcp_listen() will - * reclaim the memory needed for the original connection and allocate a - * new smaller memory block for the listening connection. - * - * tcp_listen() may return NULL if no memory was available for the - * listening connection. If so, the memory associated with the pcb - * passed as an argument to tcp_listen() will not be deallocated. - * - * The backlog limits the number of outstanding connections - * in the listen queue to the value specified by the backlog argument. - * To use it, your need to set TCP_LISTEN_BACKLOG=1 in your lwipopts.h. - * - * @param pcb the original tcp_pcb - * @param backlog the incoming connections queue limit - * @return tcp_pcb used for listening, consumes less memory. - * - * @note The original tcp_pcb is freed. This function therefore has to be - * called like this: - * tpcb = tcp_listen_with_backlog(tpcb, backlog); - */ -struct tcp_pcb * -tcp_listen_with_backlog(struct tcp_pcb *pcb, u8_t backlog) -{ - LWIP_ASSERT_CORE_LOCKED(); - return tcp_listen_with_backlog_and_err(pcb, backlog, NULL); -} - -/** - * @ingroup tcp_raw - * Set the state of the connection to be LISTEN, which means that it - * is able to accept incoming connections. The protocol control block - * is reallocated in order to consume less memory. Setting the - * connection to LISTEN is an irreversible process. - * - * @param pcb the original tcp_pcb - * @param backlog the incoming connections queue limit - * @param err when NULL is returned, this contains the error reason - * @return tcp_pcb used for listening, consumes less memory. - * - * @note The original tcp_pcb is freed. This function therefore has to be - * called like this: - * tpcb = tcp_listen_with_backlog_and_err(tpcb, backlog, &err); - */ -struct tcp_pcb * -tcp_listen_with_backlog_and_err(struct tcp_pcb *pcb, u8_t backlog, err_t *err) -{ - struct tcp_pcb_listen *lpcb = NULL; - err_t res; - - LWIP_UNUSED_ARG(backlog); - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("tcp_listen_with_backlog_and_err: invalid pcb", pcb != NULL, res = ERR_ARG; goto done); - LWIP_ERROR("tcp_listen_with_backlog_and_err: pcb already connected", pcb->state == CLOSED, res = ERR_CLSD; goto done); - - /* already listening? */ - if (pcb->state == LISTEN) { - lpcb = (struct tcp_pcb_listen *)pcb; - res = ERR_ALREADY; - goto done; - } -#if SO_REUSE - if (ip_get_option(pcb, SOF_REUSEADDR)) { - /* Since SOF_REUSEADDR allows reusing a local address before the pcb's usage - is declared (listen-/connection-pcb), we have to make sure now that - this port is only used once for every local IP. */ - for (lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) { - if ((lpcb->local_port == pcb->local_port) && - ip_addr_cmp(&lpcb->local_ip, &pcb->local_ip)) { - /* this address/port is already used */ - lpcb = NULL; - res = ERR_USE; - goto done; - } - } - } -#endif /* SO_REUSE */ - lpcb = (struct tcp_pcb_listen *)memp_malloc(MEMP_TCP_PCB_LISTEN); - if (lpcb == NULL) { - res = ERR_MEM; - goto done; - } - lpcb->callback_arg = pcb->callback_arg; - lpcb->local_port = pcb->local_port; - lpcb->state = LISTEN; - lpcb->prio = pcb->prio; - lpcb->so_options = pcb->so_options; - lpcb->netif_idx = NETIF_NO_INDEX; - lpcb->ttl = pcb->ttl; - lpcb->tos = pcb->tos; -#if LWIP_IPV4 && LWIP_IPV6 - IP_SET_TYPE_VAL(lpcb->remote_ip, pcb->local_ip.type); -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - ip_addr_copy(lpcb->local_ip, pcb->local_ip); - if (pcb->local_port != 0) { - TCP_RMV(&tcp_bound_pcbs, pcb); - } -#if LWIP_TCP_PCB_NUM_EXT_ARGS - /* copy over ext_args to listening pcb */ - memcpy(&lpcb->ext_args, &pcb->ext_args, sizeof(pcb->ext_args)); -#endif - tcp_free(pcb); -#if LWIP_CALLBACK_API - lpcb->accept = tcp_accept_null; -#endif /* LWIP_CALLBACK_API */ -#if TCP_LISTEN_BACKLOG - lpcb->accepts_pending = 0; - tcp_backlog_set(lpcb, backlog); -#endif /* TCP_LISTEN_BACKLOG */ - TCP_REG(&tcp_listen_pcbs.pcbs, (struct tcp_pcb *)lpcb); - res = ERR_OK; -done: - if (err != NULL) { - *err = res; - } - return (struct tcp_pcb *)lpcb; -} - -/** - * Update the state that tracks the available window space to advertise. - * - * Returns how much extra window would be advertised if we sent an - * update now. - */ -u32_t -tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb) -{ - u32_t new_right_edge; - - LWIP_ASSERT("tcp_update_rcv_ann_wnd: invalid pcb", pcb != NULL); - new_right_edge = pcb->rcv_nxt + pcb->rcv_wnd; - - if (TCP_SEQ_GEQ(new_right_edge, pcb->rcv_ann_right_edge + LWIP_MIN((TCP_WND / 2), pcb->mss))) { - /* we can advertise more window */ - pcb->rcv_ann_wnd = pcb->rcv_wnd; - return new_right_edge - pcb->rcv_ann_right_edge; - } else { - if (TCP_SEQ_GT(pcb->rcv_nxt, pcb->rcv_ann_right_edge)) { - /* Can happen due to other end sending out of advertised window, - * but within actual available (but not yet advertised) window */ - pcb->rcv_ann_wnd = 0; - } else { - /* keep the right edge of window constant */ - u32_t new_rcv_ann_wnd = pcb->rcv_ann_right_edge - pcb->rcv_nxt; -#if !LWIP_WND_SCALE - LWIP_ASSERT("new_rcv_ann_wnd <= 0xffff", new_rcv_ann_wnd <= 0xffff); -#endif - pcb->rcv_ann_wnd = (tcpwnd_size_t)new_rcv_ann_wnd; - } - return 0; - } -} - -/** - * @ingroup tcp_raw - * This function should be called by the application when it has - * processed the data. The purpose is to advertise a larger window - * when the data has been processed. - * - * @param pcb the tcp_pcb for which data is read - * @param len the amount of bytes that have been read by the application - */ -void -tcp_recved(struct tcp_pcb *pcb, u16_t len) -{ - u32_t wnd_inflation; - tcpwnd_size_t rcv_wnd; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("tcp_recved: invalid pcb", pcb != NULL, return); - - /* pcb->state LISTEN not allowed here */ - LWIP_ASSERT("don't call tcp_recved for listen-pcbs", - pcb->state != LISTEN); - - rcv_wnd = (tcpwnd_size_t)(pcb->rcv_wnd + len); - if ((rcv_wnd > TCP_WND_MAX(pcb)) || (rcv_wnd < pcb->rcv_wnd)) { - /* window got too big or tcpwnd_size_t overflow */ - LWIP_DEBUGF(TCP_DEBUG, ("tcp_recved: window got too big or tcpwnd_size_t overflow\n")); - pcb->rcv_wnd = TCP_WND_MAX(pcb); - } else { - pcb->rcv_wnd = rcv_wnd; - } - - wnd_inflation = tcp_update_rcv_ann_wnd(pcb); - - /* If the change in the right edge of window is significant (default - * watermark is TCP_WND/4), then send an explicit update now. - * Otherwise wait for a packet to be sent in the normal course of - * events (or more window to be available later) */ - if (wnd_inflation >= TCP_WND_UPDATE_THRESHOLD) { - tcp_ack_now(pcb); - tcp_output(pcb); - } - - LWIP_DEBUGF(TCP_DEBUG, ("tcp_recved: received %"U16_F" bytes, wnd %"TCPWNDSIZE_F" (%"TCPWNDSIZE_F").\n", - len, pcb->rcv_wnd, (u16_t)(TCP_WND_MAX(pcb) - pcb->rcv_wnd))); -} - -/** - * Allocate a new local TCP port. - * - * @return a new (free) local TCP port number - */ -static u16_t -tcp_new_port(void) -{ - u8_t i; - u16_t n = 0; - struct tcp_pcb *pcb; - -again: - tcp_port++; - if (tcp_port == TCP_LOCAL_PORT_RANGE_END) { - tcp_port = TCP_LOCAL_PORT_RANGE_START; - } - /* Check all PCB lists. */ - for (i = 0; i < NUM_TCP_PCB_LISTS; i++) { - for (pcb = *tcp_pcb_lists[i]; pcb != NULL; pcb = pcb->next) { - if (pcb->local_port == tcp_port) { - n++; - if (n > (TCP_LOCAL_PORT_RANGE_END - TCP_LOCAL_PORT_RANGE_START)) { - return 0; - } - goto again; - } - } - } - return tcp_port; -} - -/** - * @ingroup tcp_raw - * Connects to another host. The function given as the "connected" - * argument will be called when the connection has been established. - * Sets up the pcb to connect to the remote host and sends the - * initial SYN segment which opens the connection. - * - * The tcp_connect() function returns immediately; it does not wait for - * the connection to be properly setup. Instead, it will call the - * function specified as the fourth argument (the "connected" argument) - * when the connection is established. If the connection could not be - * properly established, either because the other host refused the - * connection or because the other host didn't answer, the "err" - * callback function of this pcb (registered with tcp_err, see below) - * will be called. - * - * The tcp_connect() function can return ERR_MEM if no memory is - * available for enqueueing the SYN segment. If the SYN indeed was - * enqueued successfully, the tcp_connect() function returns ERR_OK. - * - * @param pcb the tcp_pcb used to establish the connection - * @param ipaddr the remote ip address to connect to - * @param port the remote tcp port to connect to - * @param connected callback function to call when connected (on error, - the err calback will be called) - * @return ERR_VAL if invalid arguments are given - * ERR_OK if connect request has been sent - * other err_t values if connect request couldn't be sent - */ -err_t -tcp_connect(struct tcp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port, - tcp_connected_fn connected) -{ - struct netif *netif = NULL; - err_t ret; - u32_t iss; - u16_t old_local_port; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("tcp_connect: invalid pcb", pcb != NULL, return ERR_ARG); - LWIP_ERROR("tcp_connect: invalid ipaddr", ipaddr != NULL, return ERR_ARG); - - LWIP_ERROR("tcp_connect: can only connect from state CLOSED", pcb->state == CLOSED, return ERR_ISCONN); - - LWIP_DEBUGF(TCP_DEBUG, ("tcp_connect to port %"U16_F"\n", port)); - ip_addr_set(&pcb->remote_ip, ipaddr); - pcb->remote_port = port; - - if (pcb->netif_idx != NETIF_NO_INDEX) { - netif = netif_get_by_index(pcb->netif_idx); - } else { - /* check if we have a route to the remote host */ - netif = ip_route(&pcb->local_ip, &pcb->remote_ip); - } - if (netif == NULL) { - /* Don't even try to send a SYN packet if we have no route since that will fail. */ - return ERR_RTE; - } - - /* check if local IP has been assigned to pcb, if not, get one */ - if (ip_addr_isany(&pcb->local_ip)) { - const ip_addr_t *local_ip = ip_netif_get_local_ip(netif, ipaddr); - if (local_ip == NULL) { - return ERR_RTE; - } - ip_addr_copy(pcb->local_ip, *local_ip); - } - -#if LWIP_IPV6 && LWIP_IPV6_SCOPES - /* If the given IP address should have a zone but doesn't, assign one now. - * Given that we already have the target netif, this is easy and cheap. */ - if (IP_IS_V6(&pcb->remote_ip) && - ip6_addr_lacks_zone(ip_2_ip6(&pcb->remote_ip), IP6_UNICAST)) { - ip6_addr_assign_zone(ip_2_ip6(&pcb->remote_ip), IP6_UNICAST, netif); - } -#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ - - old_local_port = pcb->local_port; - if (pcb->local_port == 0) { - pcb->local_port = tcp_new_port(); - if (pcb->local_port == 0) { - return ERR_BUF; - } - } else { -#if SO_REUSE - if (ip_get_option(pcb, SOF_REUSEADDR)) { - /* Since SOF_REUSEADDR allows reusing a local address, we have to make sure - now that the 5-tuple is unique. */ - struct tcp_pcb *cpcb; - int i; - /* Don't check listen- and bound-PCBs, check active- and TIME-WAIT PCBs. */ - for (i = 2; i < NUM_TCP_PCB_LISTS; i++) { - for (cpcb = *tcp_pcb_lists[i]; cpcb != NULL; cpcb = cpcb->next) { - if ((cpcb->local_port == pcb->local_port) && - (cpcb->remote_port == port) && - ip_addr_cmp(&cpcb->local_ip, &pcb->local_ip) && - ip_addr_cmp(&cpcb->remote_ip, ipaddr)) { - /* linux returns EISCONN here, but ERR_USE should be OK for us */ - return ERR_USE; - } - } - } - } -#endif /* SO_REUSE */ - } - - iss = tcp_next_iss(pcb); - pcb->rcv_nxt = 0; - pcb->snd_nxt = iss; - pcb->lastack = iss - 1; - pcb->snd_wl2 = iss - 1; - pcb->snd_lbb = iss - 1; - /* Start with a window that does not need scaling. When window scaling is - enabled and used, the window is enlarged when both sides agree on scaling. */ - pcb->rcv_wnd = pcb->rcv_ann_wnd = TCPWND_MIN16(TCP_WND); - pcb->rcv_ann_right_edge = pcb->rcv_nxt; - pcb->snd_wnd = TCP_WND; - /* As initial send MSS, we use TCP_MSS but limit it to 536. - The send MSS is updated when an MSS option is received. */ - pcb->mss = INITIAL_MSS; -#if TCP_CALCULATE_EFF_SEND_MSS - pcb->mss = tcp_eff_send_mss_netif(pcb->mss, netif, &pcb->remote_ip); -#endif /* TCP_CALCULATE_EFF_SEND_MSS */ - pcb->cwnd = 1; -#if LWIP_CALLBACK_API - pcb->connected = connected; -#else /* LWIP_CALLBACK_API */ - LWIP_UNUSED_ARG(connected); -#endif /* LWIP_CALLBACK_API */ - - /* Send a SYN together with the MSS option. */ - ret = tcp_enqueue_flags(pcb, TCP_SYN); - if (ret == ERR_OK) { - /* SYN segment was enqueued, changed the pcbs state now */ - pcb->state = SYN_SENT; - if (old_local_port != 0) { - TCP_RMV(&tcp_bound_pcbs, pcb); - } - TCP_REG_ACTIVE(pcb); - MIB2_STATS_INC(mib2.tcpactiveopens); - - tcp_output(pcb); - } - return ret; -} - -/** - * Called every 500 ms and implements the retransmission timer and the timer that - * removes PCBs that have been in TIME-WAIT for enough time. It also increments - * various timers such as the inactivity timer in each PCB. - * - * Automatically called from tcp_tmr(). - */ -void -tcp_slowtmr(void) -{ - struct tcp_pcb *pcb, *prev; - tcpwnd_size_t eff_wnd; - u8_t pcb_remove; /* flag if a PCB should be removed */ - u8_t pcb_reset; /* flag if a RST should be sent when removing */ - err_t err; - - err = ERR_OK; - - ++tcp_ticks; - ++tcp_timer_ctr; - -tcp_slowtmr_start: - /* Steps through all of the active PCBs. */ - prev = NULL; - pcb = tcp_active_pcbs; - if (pcb == NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: no active pcbs\n")); - } - while (pcb != NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: processing active pcb\n")); - LWIP_ASSERT("tcp_slowtmr: active pcb->state != CLOSED\n", pcb->state != CLOSED); - LWIP_ASSERT("tcp_slowtmr: active pcb->state != LISTEN\n", pcb->state != LISTEN); - LWIP_ASSERT("tcp_slowtmr: active pcb->state != TIME-WAIT\n", pcb->state != TIME_WAIT); - if (pcb->last_timer == tcp_timer_ctr) { - /* skip this pcb, we have already processed it */ - prev = pcb; - pcb = pcb->next; - continue; - } - pcb->last_timer = tcp_timer_ctr; - - pcb_remove = 0; - pcb_reset = 0; - - if (pcb->state == SYN_SENT && pcb->nrtx >= TCP_SYNMAXRTX) { - ++pcb_remove; - LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: max SYN retries reached\n")); - } else if (pcb->nrtx >= TCP_MAXRTX) { - ++pcb_remove; - LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: max DATA retries reached\n")); - } else { - if (pcb->persist_backoff > 0) { - LWIP_ASSERT("tcp_slowtimr: persist ticking with in-flight data", pcb->unacked == NULL); - LWIP_ASSERT("tcp_slowtimr: persist ticking with empty send buffer", pcb->unsent != NULL); - if (pcb->persist_probe >= TCP_MAXRTX) { - ++pcb_remove; /* max probes reached */ - } else { - u8_t backoff_cnt = tcp_persist_backoff[pcb->persist_backoff - 1]; - if (pcb->persist_cnt < backoff_cnt) { - pcb->persist_cnt++; - } - if (pcb->persist_cnt >= backoff_cnt) { - int next_slot = 1; /* increment timer to next slot */ - /* If snd_wnd is zero, send 1 byte probes */ - if (pcb->snd_wnd == 0) { - if (tcp_zero_window_probe(pcb) != ERR_OK) { - next_slot = 0; /* try probe again with current slot */ - } - /* snd_wnd not fully closed, split unsent head and fill window */ - } else { - if (tcp_split_unsent_seg(pcb, (u16_t)pcb->snd_wnd) == ERR_OK) { - if (tcp_output(pcb) == ERR_OK) { - /* sending will cancel persist timer, else retry with current slot */ - next_slot = 0; - } - } - } - if (next_slot) { - pcb->persist_cnt = 0; - if (pcb->persist_backoff < sizeof(tcp_persist_backoff)) { - pcb->persist_backoff++; - } - } - } - } - } else { - /* Increase the retransmission timer if it is running */ - if ((pcb->rtime >= 0) && (pcb->rtime < 0x7FFF)) { - ++pcb->rtime; - } - - if (pcb->rtime >= pcb->rto) { - /* Time for a retransmission. */ - LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_slowtmr: rtime %"S16_F - " pcb->rto %"S16_F"\n", - pcb->rtime, pcb->rto)); - /* If prepare phase fails but we have unsent data but no unacked data, - still execute the backoff calculations below, as this means we somehow - failed to send segment. */ - if ((tcp_rexmit_rto_prepare(pcb) == ERR_OK) || ((pcb->unacked == NULL) && (pcb->unsent != NULL))) { - /* Double retransmission time-out unless we are trying to - * connect to somebody (i.e., we are in SYN_SENT). */ - if (pcb->state != SYN_SENT) { - u8_t backoff_idx = LWIP_MIN(pcb->nrtx, sizeof(tcp_backoff) - 1); - int calc_rto = ((pcb->sa >> 3) + pcb->sv) << tcp_backoff[backoff_idx]; - pcb->rto = (s16_t)LWIP_MIN(calc_rto, 0x7FFF); - } - - /* Reset the retransmission timer. */ - pcb->rtime = 0; - - /* Reduce congestion window and ssthresh. */ - eff_wnd = LWIP_MIN(pcb->cwnd, pcb->snd_wnd); - pcb->ssthresh = eff_wnd >> 1; - if (pcb->ssthresh < (tcpwnd_size_t)(pcb->mss << 1)) { - pcb->ssthresh = (tcpwnd_size_t)(pcb->mss << 1); - } - pcb->cwnd = pcb->mss; - LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_slowtmr: cwnd %"TCPWNDSIZE_F - " ssthresh %"TCPWNDSIZE_F"\n", - pcb->cwnd, pcb->ssthresh)); - pcb->bytes_acked = 0; - - /* The following needs to be called AFTER cwnd is set to one - mss - STJ */ - tcp_rexmit_rto_commit(pcb); - } - } - } - } - /* Check if this PCB has stayed too long in FIN-WAIT-2 */ - if (pcb->state == FIN_WAIT_2) { - /* If this PCB is in FIN_WAIT_2 because of SHUT_WR don't let it time out. */ - if (pcb->flags & TF_RXCLOSED) { - /* PCB was fully closed (either through close() or SHUT_RDWR): - normal FIN-WAIT timeout handling. */ - if ((u32_t)(tcp_ticks - pcb->tmr) > - TCP_FIN_WAIT_TIMEOUT / TCP_SLOW_INTERVAL) { - ++pcb_remove; - LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: removing pcb stuck in FIN-WAIT-2\n")); - } - } - } - - /* Check if KEEPALIVE should be sent */ - if (ip_get_option(pcb, SOF_KEEPALIVE) && - ((pcb->state == ESTABLISHED) || - (pcb->state == CLOSE_WAIT))) { - if ((u32_t)(tcp_ticks - pcb->tmr) > - (pcb->keep_idle + TCP_KEEP_DUR(pcb)) / TCP_SLOW_INTERVAL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: KEEPALIVE timeout. Aborting connection to ")); - ip_addr_debug_print_val(TCP_DEBUG, pcb->remote_ip); - LWIP_DEBUGF(TCP_DEBUG, ("\n")); - - ++pcb_remove; - ++pcb_reset; - } else if ((u32_t)(tcp_ticks - pcb->tmr) > - (pcb->keep_idle + pcb->keep_cnt_sent * TCP_KEEP_INTVL(pcb)) - / TCP_SLOW_INTERVAL) { - err = tcp_keepalive(pcb); - if (err == ERR_OK) { - pcb->keep_cnt_sent++; - } - } - } - - /* If this PCB has queued out of sequence data, but has been - inactive for too long, will drop the data (it will eventually - be retransmitted). */ -#if TCP_QUEUE_OOSEQ - if (pcb->ooseq != NULL && - (tcp_ticks - pcb->tmr >= (u32_t)pcb->rto * TCP_OOSEQ_TIMEOUT)) { - LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_slowtmr: dropping OOSEQ queued data\n")); - tcp_free_ooseq(pcb); - } -#endif /* TCP_QUEUE_OOSEQ */ - - /* Check if this PCB has stayed too long in SYN-RCVD */ - if (pcb->state == SYN_RCVD) { - if ((u32_t)(tcp_ticks - pcb->tmr) > - TCP_SYN_RCVD_TIMEOUT / TCP_SLOW_INTERVAL) { - ++pcb_remove; - LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: removing pcb stuck in SYN-RCVD\n")); - } - } - - /* Check if this PCB has stayed too long in LAST-ACK */ - if (pcb->state == LAST_ACK) { - if ((u32_t)(tcp_ticks - pcb->tmr) > 2 * TCP_MSL / TCP_SLOW_INTERVAL) { - ++pcb_remove; - LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: removing pcb stuck in LAST-ACK\n")); - } - } - - /* If the PCB should be removed, do it. */ - if (pcb_remove) { - struct tcp_pcb *pcb2; -#if LWIP_CALLBACK_API - tcp_err_fn err_fn = pcb->errf; -#endif /* LWIP_CALLBACK_API */ - void *err_arg; - enum tcp_state last_state; - tcp_pcb_purge(pcb); - /* Remove PCB from tcp_active_pcbs list. */ - if (prev != NULL) { - LWIP_ASSERT("tcp_slowtmr: middle tcp != tcp_active_pcbs", pcb != tcp_active_pcbs); - prev->next = pcb->next; - } else { - /* This PCB was the first. */ - LWIP_ASSERT("tcp_slowtmr: first pcb == tcp_active_pcbs", tcp_active_pcbs == pcb); - tcp_active_pcbs = pcb->next; - } - - if (pcb_reset) { - tcp_rst(pcb, pcb->snd_nxt, pcb->rcv_nxt, &pcb->local_ip, &pcb->remote_ip, - pcb->local_port, pcb->remote_port); - } - - err_arg = pcb->callback_arg; - last_state = pcb->state; - pcb2 = pcb; - pcb = pcb->next; - tcp_free(pcb2); - - tcp_active_pcbs_changed = 0; - TCP_EVENT_ERR(last_state, err_fn, err_arg, ERR_ABRT); - if (tcp_active_pcbs_changed) { - goto tcp_slowtmr_start; - } - } else { - /* get the 'next' element now and work with 'prev' below (in case of abort) */ - prev = pcb; - pcb = pcb->next; - - /* We check if we should poll the connection. */ - ++prev->polltmr; - if (prev->polltmr >= prev->pollinterval) { - prev->polltmr = 0; - LWIP_DEBUGF(TCP_DEBUG, ("tcp_slowtmr: polling application\n")); - tcp_active_pcbs_changed = 0; - TCP_EVENT_POLL(prev, err); - if (tcp_active_pcbs_changed) { - goto tcp_slowtmr_start; - } - /* if err == ERR_ABRT, 'prev' is already deallocated */ - if (err == ERR_OK) { - tcp_output(prev); - } - } - } - } - - - /* Steps through all of the TIME-WAIT PCBs. */ - prev = NULL; - pcb = tcp_tw_pcbs; - while (pcb != NULL) { - LWIP_ASSERT("tcp_slowtmr: TIME-WAIT pcb->state == TIME-WAIT", pcb->state == TIME_WAIT); - pcb_remove = 0; - - /* Check if this PCB has stayed long enough in TIME-WAIT */ - if ((u32_t)(tcp_ticks - pcb->tmr) > 2 * TCP_MSL / TCP_SLOW_INTERVAL) { - ++pcb_remove; - } - - /* If the PCB should be removed, do it. */ - if (pcb_remove) { - struct tcp_pcb *pcb2; - tcp_pcb_purge(pcb); - /* Remove PCB from tcp_tw_pcbs list. */ - if (prev != NULL) { - LWIP_ASSERT("tcp_slowtmr: middle tcp != tcp_tw_pcbs", pcb != tcp_tw_pcbs); - prev->next = pcb->next; - } else { - /* This PCB was the first. */ - LWIP_ASSERT("tcp_slowtmr: first pcb == tcp_tw_pcbs", tcp_tw_pcbs == pcb); - tcp_tw_pcbs = pcb->next; - } - pcb2 = pcb; - pcb = pcb->next; - tcp_free(pcb2); - } else { - prev = pcb; - pcb = pcb->next; - } - } -} - -/** - * Is called every TCP_FAST_INTERVAL (250 ms) and process data previously - * "refused" by upper layer (application) and sends delayed ACKs or pending FINs. - * - * Automatically called from tcp_tmr(). - */ -void -tcp_fasttmr(void) -{ - struct tcp_pcb *pcb; - - ++tcp_timer_ctr; - -tcp_fasttmr_start: - pcb = tcp_active_pcbs; - - while (pcb != NULL) { - if (pcb->last_timer != tcp_timer_ctr) { - struct tcp_pcb *next; - pcb->last_timer = tcp_timer_ctr; - /* send delayed ACKs */ - if (pcb->flags & TF_ACK_DELAY) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_fasttmr: delayed ACK\n")); - tcp_ack_now(pcb); - tcp_output(pcb); - tcp_clear_flags(pcb, TF_ACK_DELAY | TF_ACK_NOW); - } - /* send pending FIN */ - if (pcb->flags & TF_CLOSEPEND) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_fasttmr: pending FIN\n")); - tcp_clear_flags(pcb, TF_CLOSEPEND); - tcp_close_shutdown_fin(pcb); - } - - next = pcb->next; - - /* If there is data which was previously "refused" by upper layer */ - if (pcb->refused_data != NULL) { - tcp_active_pcbs_changed = 0; - tcp_process_refused_data(pcb); - if (tcp_active_pcbs_changed) { - /* application callback has changed the pcb list: restart the loop */ - goto tcp_fasttmr_start; - } - } - pcb = next; - } else { - pcb = pcb->next; - } - } -} - -/** Call tcp_output for all active pcbs that have TF_NAGLEMEMERR set */ -void -tcp_txnow(void) -{ - struct tcp_pcb *pcb; - - for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { - if (pcb->flags & TF_NAGLEMEMERR) { - tcp_output(pcb); - } - } -} - -/** Pass pcb->refused_data to the recv callback */ -err_t -tcp_process_refused_data(struct tcp_pcb *pcb) -{ -#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE - struct pbuf *rest; -#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - - LWIP_ERROR("tcp_process_refused_data: invalid pcb", pcb != NULL, return ERR_ARG); - -#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE - while (pcb->refused_data != NULL) -#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - { - err_t err; - u8_t refused_flags = pcb->refused_data->flags; - /* set pcb->refused_data to NULL in case the callback frees it and then - closes the pcb */ - struct pbuf *refused_data = pcb->refused_data; -#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE - pbuf_split_64k(refused_data, &rest); - pcb->refused_data = rest; -#else /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - pcb->refused_data = NULL; -#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - /* Notify again application with data previously received. */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: notify kept packet\n")); - TCP_EVENT_RECV(pcb, refused_data, ERR_OK, err); - if (err == ERR_OK) { - /* did refused_data include a FIN? */ - if ((refused_flags & PBUF_FLAG_TCP_FIN) -#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE - && (rest == NULL) -#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - ) { - /* correct rcv_wnd as the application won't call tcp_recved() - for the FIN's seqno */ - if (pcb->rcv_wnd != TCP_WND_MAX(pcb)) { - pcb->rcv_wnd++; - } - TCP_EVENT_CLOSED(pcb, err); - if (err == ERR_ABRT) { - return ERR_ABRT; - } - } - } else if (err == ERR_ABRT) { - /* if err == ERR_ABRT, 'pcb' is already deallocated */ - /* Drop incoming packets because pcb is "full" (only if the incoming - segment contains data). */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: drop incoming packets, because pcb is \"full\"\n")); - return ERR_ABRT; - } else { - /* data is still refused, pbuf is still valid (go on for ACK-only packets) */ -#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE - if (rest != NULL) { - pbuf_cat(refused_data, rest); - } -#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - pcb->refused_data = refused_data; - return ERR_INPROGRESS; - } - } - return ERR_OK; -} - -/** - * Deallocates a list of TCP segments (tcp_seg structures). - * - * @param seg tcp_seg list of TCP segments to free - */ -void -tcp_segs_free(struct tcp_seg *seg) -{ - while (seg != NULL) { - struct tcp_seg *next = seg->next; - tcp_seg_free(seg); - seg = next; - } -} - -/** - * Frees a TCP segment (tcp_seg structure). - * - * @param seg single tcp_seg to free - */ -void -tcp_seg_free(struct tcp_seg *seg) -{ - if (seg != NULL) { - if (seg->p != NULL) { - pbuf_free(seg->p); -#if TCP_DEBUG - seg->p = NULL; -#endif /* TCP_DEBUG */ - } - memp_free(MEMP_TCP_SEG, seg); - } -} - -/** - * @ingroup tcp - * Sets the priority of a connection. - * - * @param pcb the tcp_pcb to manipulate - * @param prio new priority - */ -void -tcp_setprio(struct tcp_pcb *pcb, u8_t prio) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("tcp_setprio: invalid pcb", pcb != NULL, return); - - pcb->prio = prio; -} - -#if TCP_QUEUE_OOSEQ -/** - * Returns a copy of the given TCP segment. - * The pbuf and data are not copied, only the pointers - * - * @param seg the old tcp_seg - * @return a copy of seg - */ -struct tcp_seg * -tcp_seg_copy(struct tcp_seg *seg) -{ - struct tcp_seg *cseg; - - LWIP_ASSERT("tcp_seg_copy: invalid seg", seg != NULL); - - cseg = (struct tcp_seg *)memp_malloc(MEMP_TCP_SEG); - if (cseg == NULL) { - return NULL; - } - SMEMCPY((u8_t *)cseg, (const u8_t *)seg, sizeof(struct tcp_seg)); - pbuf_ref(cseg->p); - return cseg; -} -#endif /* TCP_QUEUE_OOSEQ */ - -#if LWIP_CALLBACK_API -/** - * Default receive callback that is called if the user didn't register - * a recv callback for the pcb. - */ -err_t -tcp_recv_null(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err) -{ - LWIP_UNUSED_ARG(arg); - - LWIP_ERROR("tcp_recv_null: invalid pcb", pcb != NULL, return ERR_ARG); - - if (p != NULL) { - tcp_recved(pcb, p->tot_len); - pbuf_free(p); - } else if (err == ERR_OK) { - return tcp_close(pcb); - } - return ERR_OK; -} -#endif /* LWIP_CALLBACK_API */ - -/** - * Kills the oldest active connection that has a lower priority than 'prio'. - * - * @param prio minimum priority - */ -static void -tcp_kill_prio(u8_t prio) -{ - struct tcp_pcb *pcb, *inactive; - u32_t inactivity; - u8_t mprio; - - mprio = LWIP_MIN(TCP_PRIO_MAX, prio); - - /* We want to kill connections with a lower prio, so bail out if - * supplied prio is 0 - there can never be a lower prio - */ - if (mprio == 0) { - return; - } - - /* We only want kill connections with a lower prio, so decrement prio by one - * and start searching for oldest connection with same or lower priority than mprio. - * We want to find the connections with the lowest possible prio, and among - * these the one with the longest inactivity time. - */ - mprio--; - - inactivity = 0; - inactive = NULL; - for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { - /* lower prio is always a kill candidate */ - if ((pcb->prio < mprio) || - /* longer inactivity is also a kill candidate */ - ((pcb->prio == mprio) && ((u32_t)(tcp_ticks - pcb->tmr) >= inactivity))) { - inactivity = tcp_ticks - pcb->tmr; - inactive = pcb; - mprio = pcb->prio; - } - } - if (inactive != NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_kill_prio: killing oldest PCB %p (%"S32_F")\n", - (void *)inactive, inactivity)); - tcp_abort(inactive); - } -} - -/** - * Kills the oldest connection that is in specific state. - * Called from tcp_alloc() for LAST_ACK and CLOSING if no more connections are available. - */ -static void -tcp_kill_state(enum tcp_state state) -{ - struct tcp_pcb *pcb, *inactive; - u32_t inactivity; - - LWIP_ASSERT("invalid state", (state == CLOSING) || (state == LAST_ACK)); - - inactivity = 0; - inactive = NULL; - /* Go through the list of active pcbs and get the oldest pcb that is in state - CLOSING/LAST_ACK. */ - for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { - if (pcb->state == state) { - if ((u32_t)(tcp_ticks - pcb->tmr) >= inactivity) { - inactivity = tcp_ticks - pcb->tmr; - inactive = pcb; - } - } - } - if (inactive != NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_kill_closing: killing oldest %s PCB %p (%"S32_F")\n", - tcp_state_str[state], (void *)inactive, inactivity)); - /* Don't send a RST, since no data is lost. */ - tcp_abandon(inactive, 0); - } -} - -/** - * Kills the oldest connection that is in TIME_WAIT state. - * Called from tcp_alloc() if no more connections are available. - */ -static void -tcp_kill_timewait(void) -{ - struct tcp_pcb *pcb, *inactive; - u32_t inactivity; - - inactivity = 0; - inactive = NULL; - /* Go through the list of TIME_WAIT pcbs and get the oldest pcb. */ - for (pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) { - if ((u32_t)(tcp_ticks - pcb->tmr) >= inactivity) { - inactivity = tcp_ticks - pcb->tmr; - inactive = pcb; - } - } - if (inactive != NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_kill_timewait: killing oldest TIME-WAIT PCB %p (%"S32_F")\n", - (void *)inactive, inactivity)); - tcp_abort(inactive); - } -} - -/* Called when allocating a pcb fails. - * In this case, we want to handle all pcbs that want to close first: if we can - * now send the FIN (which failed before), the pcb might be in a state that is - * OK for us to now free it. - */ -static void -tcp_handle_closepend(void) -{ - struct tcp_pcb *pcb = tcp_active_pcbs; - - while (pcb != NULL) { - struct tcp_pcb *next = pcb->next; - /* send pending FIN */ - if (pcb->flags & TF_CLOSEPEND) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_handle_closepend: pending FIN\n")); - tcp_clear_flags(pcb, TF_CLOSEPEND); - tcp_close_shutdown_fin(pcb); - } - pcb = next; - } -} - -/** - * Allocate a new tcp_pcb structure. - * - * @param prio priority for the new pcb - * @return a new tcp_pcb that initially is in state CLOSED - */ -struct tcp_pcb * -tcp_alloc(u8_t prio) -{ - struct tcp_pcb *pcb; - - LWIP_ASSERT_CORE_LOCKED(); - - pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); - if (pcb == NULL) { - /* Try to send FIN for all pcbs stuck in TF_CLOSEPEND first */ - tcp_handle_closepend(); - - /* Try killing oldest connection in TIME-WAIT. */ - LWIP_DEBUGF(TCP_DEBUG, ("tcp_alloc: killing off oldest TIME-WAIT connection\n")); - tcp_kill_timewait(); - /* Try to allocate a tcp_pcb again. */ - pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); - if (pcb == NULL) { - /* Try killing oldest connection in LAST-ACK (these wouldn't go to TIME-WAIT). */ - LWIP_DEBUGF(TCP_DEBUG, ("tcp_alloc: killing off oldest LAST-ACK connection\n")); - tcp_kill_state(LAST_ACK); - /* Try to allocate a tcp_pcb again. */ - pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); - if (pcb == NULL) { - /* Try killing oldest connection in CLOSING. */ - LWIP_DEBUGF(TCP_DEBUG, ("tcp_alloc: killing off oldest CLOSING connection\n")); - tcp_kill_state(CLOSING); - /* Try to allocate a tcp_pcb again. */ - pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); - if (pcb == NULL) { - /* Try killing oldest active connection with lower priority than the new one. */ - LWIP_DEBUGF(TCP_DEBUG, ("tcp_alloc: killing oldest connection with prio lower than %d\n", prio)); - tcp_kill_prio(prio); - /* Try to allocate a tcp_pcb again. */ - pcb = (struct tcp_pcb *)memp_malloc(MEMP_TCP_PCB); - if (pcb != NULL) { - /* adjust err stats: memp_malloc failed multiple times before */ - MEMP_STATS_DEC(err, MEMP_TCP_PCB); - } - } - if (pcb != NULL) { - /* adjust err stats: memp_malloc failed multiple times before */ - MEMP_STATS_DEC(err, MEMP_TCP_PCB); - } - } - if (pcb != NULL) { - /* adjust err stats: memp_malloc failed multiple times before */ - MEMP_STATS_DEC(err, MEMP_TCP_PCB); - } - } - if (pcb != NULL) { - /* adjust err stats: memp_malloc failed above */ - MEMP_STATS_DEC(err, MEMP_TCP_PCB); - } - } - if (pcb != NULL) { - /* zero out the whole pcb, so there is no need to initialize members to zero */ - memset(pcb, 0, sizeof(struct tcp_pcb)); - pcb->prio = prio; - pcb->snd_buf = TCP_SND_BUF; - /* Start with a window that does not need scaling. When window scaling is - enabled and used, the window is enlarged when both sides agree on scaling. */ - pcb->rcv_wnd = pcb->rcv_ann_wnd = TCPWND_MIN16(TCP_WND); - pcb->ttl = TCP_TTL; - /* As initial send MSS, we use TCP_MSS but limit it to 536. - The send MSS is updated when an MSS option is received. */ - pcb->mss = INITIAL_MSS; - pcb->rto = 3000 / TCP_SLOW_INTERVAL; - pcb->sv = 3000 / TCP_SLOW_INTERVAL; - pcb->rtime = -1; - pcb->cwnd = 1; - pcb->tmr = tcp_ticks; - pcb->last_timer = tcp_timer_ctr; - - /* RFC 5681 recommends setting ssthresh abritrarily high and gives an example - of using the largest advertised receive window. We've seen complications with - receiving TCPs that use window scaling and/or window auto-tuning where the - initial advertised window is very small and then grows rapidly once the - connection is established. To avoid these complications, we set ssthresh to the - largest effective cwnd (amount of in-flight data) that the sender can have. */ - pcb->ssthresh = TCP_SND_BUF; - -#if LWIP_CALLBACK_API - pcb->recv = tcp_recv_null; -#endif /* LWIP_CALLBACK_API */ - - /* Init KEEPALIVE timer */ - pcb->keep_idle = TCP_KEEPIDLE_DEFAULT; - -#if LWIP_TCP_KEEPALIVE - pcb->keep_intvl = TCP_KEEPINTVL_DEFAULT; - pcb->keep_cnt = TCP_KEEPCNT_DEFAULT; -#endif /* LWIP_TCP_KEEPALIVE */ - } - return pcb; -} - -/** - * @ingroup tcp_raw - * Creates a new TCP protocol control block but doesn't place it on - * any of the TCP PCB lists. - * The pcb is not put on any list until binding using tcp_bind(). - * If memory is not available for creating the new pcb, NULL is returned. - * - * @internal: Maybe there should be a idle TCP PCB list where these - * PCBs are put on. Port reservation using tcp_bind() is implemented but - * allocated pcbs that are not bound can't be killed automatically if wanting - * to allocate a pcb with higher prio (@see tcp_kill_prio()) - * - * @return a new tcp_pcb that initially is in state CLOSED - */ -struct tcp_pcb * -tcp_new(void) -{ - return tcp_alloc(TCP_PRIO_NORMAL); -} - -/** - * @ingroup tcp_raw - * Creates a new TCP protocol control block but doesn't - * place it on any of the TCP PCB lists. - * The pcb is not put on any list until binding using tcp_bind(). - * - * @param type IP address type, see @ref lwip_ip_addr_type definitions. - * If you want to listen to IPv4 and IPv6 (dual-stack) connections, - * supply @ref IPADDR_TYPE_ANY as argument and bind to @ref IP_ANY_TYPE. - * @return a new tcp_pcb that initially is in state CLOSED - */ -struct tcp_pcb * -tcp_new_ip_type(u8_t type) -{ - struct tcp_pcb *pcb; - pcb = tcp_alloc(TCP_PRIO_NORMAL); -#if LWIP_IPV4 && LWIP_IPV6 - if (pcb != NULL) { - IP_SET_TYPE_VAL(pcb->local_ip, type); - IP_SET_TYPE_VAL(pcb->remote_ip, type); - } -#else - LWIP_UNUSED_ARG(type); -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - return pcb; -} - -/** - * @ingroup tcp_raw - * Specifies the program specific state that should be passed to all - * other callback functions. The "pcb" argument is the current TCP - * connection control block, and the "arg" argument is the argument - * that will be passed to the callbacks. - * - * @param pcb tcp_pcb to set the callback argument - * @param arg void pointer argument to pass to callback functions - */ -void -tcp_arg(struct tcp_pcb *pcb, void *arg) -{ - LWIP_ASSERT_CORE_LOCKED(); - /* This function is allowed to be called for both listen pcbs and - connection pcbs. */ - if (pcb != NULL) { - pcb->callback_arg = arg; - } -} -#if LWIP_CALLBACK_API - -/** - * @ingroup tcp_raw - * Sets the callback function that will be called when new data - * arrives. The callback function will be passed a NULL pbuf to - * indicate that the remote host has closed the connection. If the - * callback function returns ERR_OK or ERR_ABRT it must have - * freed the pbuf, otherwise it must not have freed it. - * - * @param pcb tcp_pcb to set the recv callback - * @param recv callback function to call for this pcb when data is received - */ -void -tcp_recv(struct tcp_pcb *pcb, tcp_recv_fn recv) -{ - LWIP_ASSERT_CORE_LOCKED(); - if (pcb != NULL) { - LWIP_ASSERT("invalid socket state for recv callback", pcb->state != LISTEN); - pcb->recv = recv; - } -} - -/** - * @ingroup tcp_raw - * Specifies the callback function that should be called when data has - * successfully been received (i.e., acknowledged) by the remote - * host. The len argument passed to the callback function gives the - * amount bytes that was acknowledged by the last acknowledgment. - * - * @param pcb tcp_pcb to set the sent callback - * @param sent callback function to call for this pcb when data is successfully sent - */ -void -tcp_sent(struct tcp_pcb *pcb, tcp_sent_fn sent) -{ - LWIP_ASSERT_CORE_LOCKED(); - if (pcb != NULL) { - LWIP_ASSERT("invalid socket state for sent callback", pcb->state != LISTEN); - pcb->sent = sent; - } -} - -/** - * @ingroup tcp_raw - * Used to specify the function that should be called when a fatal error - * has occurred on the connection. - * - * If a connection is aborted because of an error, the application is - * alerted of this event by the err callback. Errors that might abort a - * connection are when there is a shortage of memory. The callback - * function to be called is set using the tcp_err() function. - * - * @note The corresponding pcb is already freed when this callback is called! - * - * @param pcb tcp_pcb to set the err callback - * @param err callback function to call for this pcb when a fatal error - * has occurred on the connection - */ -void -tcp_err(struct tcp_pcb *pcb, tcp_err_fn err) -{ - LWIP_ASSERT_CORE_LOCKED(); - if (pcb != NULL) { - LWIP_ASSERT("invalid socket state for err callback", pcb->state != LISTEN); - pcb->errf = err; - } -} - -/** - * @ingroup tcp_raw - * Used for specifying the function that should be called when a - * LISTENing connection has been connected to another host. - * - * @param pcb tcp_pcb to set the accept callback - * @param accept callback function to call for this pcb when LISTENing - * connection has been connected to another host - */ -void -tcp_accept(struct tcp_pcb *pcb, tcp_accept_fn accept) -{ - LWIP_ASSERT_CORE_LOCKED(); - if ((pcb != NULL) && (pcb->state == LISTEN)) { - struct tcp_pcb_listen *lpcb = (struct tcp_pcb_listen *)pcb; - lpcb->accept = accept; - } -} -#endif /* LWIP_CALLBACK_API */ - - -/** - * @ingroup tcp_raw - * Specifies the polling interval and the callback function that should - * be called to poll the application. The interval is specified in - * number of TCP coarse grained timer shots, which typically occurs - * twice a second. An interval of 10 means that the application would - * be polled every 5 seconds. - * - * When a connection is idle (i.e., no data is either transmitted or - * received), lwIP will repeatedly poll the application by calling a - * specified callback function. This can be used either as a watchdog - * timer for killing connections that have stayed idle for too long, or - * as a method of waiting for memory to become available. For instance, - * if a call to tcp_write() has failed because memory wasn't available, - * the application may use the polling functionality to call tcp_write() - * again when the connection has been idle for a while. - */ -void -tcp_poll(struct tcp_pcb *pcb, tcp_poll_fn poll, u8_t interval) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("tcp_poll: invalid pcb", pcb != NULL, return); - LWIP_ASSERT("invalid socket state for poll", pcb->state != LISTEN); - -#if LWIP_CALLBACK_API - pcb->poll = poll; -#else /* LWIP_CALLBACK_API */ - LWIP_UNUSED_ARG(poll); -#endif /* LWIP_CALLBACK_API */ - pcb->pollinterval = interval; -} - -/** - * Purges a TCP PCB. Removes any buffered data and frees the buffer memory - * (pcb->ooseq, pcb->unsent and pcb->unacked are freed). - * - * @param pcb tcp_pcb to purge. The pcb itself is not deallocated! - */ -void -tcp_pcb_purge(struct tcp_pcb *pcb) -{ - LWIP_ERROR("tcp_pcb_purge: invalid pcb", pcb != NULL, return); - - if (pcb->state != CLOSED && - pcb->state != TIME_WAIT && - pcb->state != LISTEN) { - - LWIP_DEBUGF(TCP_DEBUG, ("tcp_pcb_purge\n")); - - tcp_backlog_accepted(pcb); - - if (pcb->refused_data != NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_pcb_purge: data left on ->refused_data\n")); - pbuf_free(pcb->refused_data); - pcb->refused_data = NULL; - } - if (pcb->unsent != NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_pcb_purge: not all data sent\n")); - } - if (pcb->unacked != NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_pcb_purge: data left on ->unacked\n")); - } -#if TCP_QUEUE_OOSEQ - if (pcb->ooseq != NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_pcb_purge: data left on ->ooseq\n")); - tcp_free_ooseq(pcb); - } -#endif /* TCP_QUEUE_OOSEQ */ - - /* Stop the retransmission timer as it will expect data on unacked - queue if it fires */ - pcb->rtime = -1; - - tcp_segs_free(pcb->unsent); - tcp_segs_free(pcb->unacked); - pcb->unacked = pcb->unsent = NULL; -#if TCP_OVERSIZE - pcb->unsent_oversize = 0; -#endif /* TCP_OVERSIZE */ - } -} - -/** - * Purges the PCB and removes it from a PCB list. Any delayed ACKs are sent first. - * - * @param pcblist PCB list to purge. - * @param pcb tcp_pcb to purge. The pcb itself is NOT deallocated! - */ -void -tcp_pcb_remove(struct tcp_pcb **pcblist, struct tcp_pcb *pcb) -{ - LWIP_ASSERT("tcp_pcb_remove: invalid pcb", pcb != NULL); - LWIP_ASSERT("tcp_pcb_remove: invalid pcblist", pcblist != NULL); - - TCP_RMV(pcblist, pcb); - - tcp_pcb_purge(pcb); - - /* if there is an outstanding delayed ACKs, send it */ - if ((pcb->state != TIME_WAIT) && - (pcb->state != LISTEN) && - (pcb->flags & TF_ACK_DELAY)) { - tcp_ack_now(pcb); - tcp_output(pcb); - } - - if (pcb->state != LISTEN) { - LWIP_ASSERT("unsent segments leaking", pcb->unsent == NULL); - LWIP_ASSERT("unacked segments leaking", pcb->unacked == NULL); -#if TCP_QUEUE_OOSEQ - LWIP_ASSERT("ooseq segments leaking", pcb->ooseq == NULL); -#endif /* TCP_QUEUE_OOSEQ */ - } - - pcb->state = CLOSED; - /* reset the local port to prevent the pcb from being 'bound' */ - pcb->local_port = 0; - - LWIP_ASSERT("tcp_pcb_remove: tcp_pcbs_sane()", tcp_pcbs_sane()); -} - -/** - * Calculates a new initial sequence number for new connections. - * - * @return u32_t pseudo random sequence number - */ -u32_t -tcp_next_iss(struct tcp_pcb *pcb) -{ -#ifdef LWIP_HOOK_TCP_ISN - LWIP_ASSERT("tcp_next_iss: invalid pcb", pcb != NULL); - return LWIP_HOOK_TCP_ISN(&pcb->local_ip, pcb->local_port, &pcb->remote_ip, pcb->remote_port); -#else /* LWIP_HOOK_TCP_ISN */ - static u32_t iss = 6510; - - LWIP_ASSERT("tcp_next_iss: invalid pcb", pcb != NULL); - LWIP_UNUSED_ARG(pcb); - - iss += tcp_ticks; /* XXX */ - return iss; -#endif /* LWIP_HOOK_TCP_ISN */ -} - -#if TCP_CALCULATE_EFF_SEND_MSS -/** - * Calculates the effective send mss that can be used for a specific IP address - * by calculating the minimum of TCP_MSS and the mtu (if set) of the target - * netif (if not NULL). - */ -u16_t -tcp_eff_send_mss_netif(u16_t sendmss, struct netif *outif, const ip_addr_t *dest) -{ - u16_t mss_s; - u16_t mtu; - - LWIP_UNUSED_ARG(dest); /* in case IPv6 is disabled */ - - LWIP_ASSERT("tcp_eff_send_mss_netif: invalid dst_ip", dest != NULL); - -#if LWIP_IPV6 -#if LWIP_IPV4 - if (IP_IS_V6(dest)) -#endif /* LWIP_IPV4 */ - { - /* First look in destination cache, to see if there is a Path MTU. */ - mtu = nd6_get_destination_mtu(ip_2_ip6(dest), outif); - } -#if LWIP_IPV4 - else -#endif /* LWIP_IPV4 */ -#endif /* LWIP_IPV6 */ -#if LWIP_IPV4 - { - if (outif == NULL) { - return sendmss; - } - mtu = outif->mtu; - } -#endif /* LWIP_IPV4 */ - - if (mtu != 0) { - u16_t offset; -#if LWIP_IPV6 -#if LWIP_IPV4 - if (IP_IS_V6(dest)) -#endif /* LWIP_IPV4 */ - { - offset = IP6_HLEN + TCP_HLEN; - } -#if LWIP_IPV4 - else -#endif /* LWIP_IPV4 */ -#endif /* LWIP_IPV6 */ -#if LWIP_IPV4 - { - offset = IP_HLEN + TCP_HLEN; - } -#endif /* LWIP_IPV4 */ - mss_s = (mtu > offset) ? (u16_t)(mtu - offset) : 0; - /* RFC 1122, chap 4.2.2.6: - * Eff.snd.MSS = min(SendMSS+20, MMS_S) - TCPhdrsize - IPoptionsize - * We correct for TCP options in tcp_write(), and don't support IP options. - */ - sendmss = LWIP_MIN(sendmss, mss_s); - } - return sendmss; -} -#endif /* TCP_CALCULATE_EFF_SEND_MSS */ - -/** Helper function for tcp_netif_ip_addr_changed() that iterates a pcb list */ -static void -tcp_netif_ip_addr_changed_pcblist(const ip_addr_t *old_addr, struct tcp_pcb *pcb_list) -{ - struct tcp_pcb *pcb; - pcb = pcb_list; - - LWIP_ASSERT("tcp_netif_ip_addr_changed_pcblist: invalid old_addr", old_addr != NULL); - - while (pcb != NULL) { - /* PCB bound to current local interface address? */ - if (ip_addr_cmp(&pcb->local_ip, old_addr) -#if LWIP_AUTOIP - /* connections to link-local addresses must persist (RFC3927 ch. 1.9) */ - && (!IP_IS_V4_VAL(pcb->local_ip) || !ip4_addr_islinklocal(ip_2_ip4(&pcb->local_ip))) -#endif /* LWIP_AUTOIP */ - ) { - /* this connection must be aborted */ - struct tcp_pcb *next = pcb->next; - LWIP_DEBUGF(NETIF_DEBUG | LWIP_DBG_STATE, ("netif_set_ipaddr: aborting TCP pcb %p\n", (void *)pcb)); - tcp_abort(pcb); - pcb = next; - } else { - pcb = pcb->next; - } - } -} - -/** This function is called from netif.c when address is changed or netif is removed - * - * @param old_addr IP address of the netif before change - * @param new_addr IP address of the netif after change or NULL if netif has been removed - */ -void -tcp_netif_ip_addr_changed(const ip_addr_t *old_addr, const ip_addr_t *new_addr) -{ - struct tcp_pcb_listen *lpcb; - - if (!ip_addr_isany(old_addr)) { - tcp_netif_ip_addr_changed_pcblist(old_addr, tcp_active_pcbs); - tcp_netif_ip_addr_changed_pcblist(old_addr, tcp_bound_pcbs); - - if (!ip_addr_isany(new_addr)) { - /* PCB bound to current local interface address? */ - for (lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) { - /* PCB bound to current local interface address? */ - if (ip_addr_cmp(&lpcb->local_ip, old_addr)) { - /* The PCB is listening to the old ipaddr and - * is set to listen to the new one instead */ - ip_addr_copy(lpcb->local_ip, *new_addr); - } - } - } - } -} - -const char * -tcp_debug_state_str(enum tcp_state s) -{ - return tcp_state_str[s]; -} - -err_t -tcp_tcp_get_tcp_addrinfo(struct tcp_pcb *pcb, int local, ip_addr_t *addr, u16_t *port) -{ - if (pcb) { - if (local) { - if (addr) { - *addr = pcb->local_ip; - } - if (port) { - *port = pcb->local_port; - } - } else { - if (addr) { - *addr = pcb->remote_ip; - } - if (port) { - *port = pcb->remote_port; - } - } - return ERR_OK; - } - return ERR_VAL; -} - -#if TCP_QUEUE_OOSEQ -/* Free all ooseq pbufs (and possibly reset SACK state) */ -void -tcp_free_ooseq(struct tcp_pcb *pcb) -{ - if (pcb->ooseq) { - tcp_segs_free(pcb->ooseq); - pcb->ooseq = NULL; -#if LWIP_TCP_SACK_OUT - memset(pcb->rcv_sacks, 0, sizeof(pcb->rcv_sacks)); -#endif /* LWIP_TCP_SACK_OUT */ - } -} -#endif /* TCP_QUEUE_OOSEQ */ - -#if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG -/** - * Print a tcp header for debugging purposes. - * - * @param tcphdr pointer to a struct tcp_hdr - */ -void -tcp_debug_print(struct tcp_hdr *tcphdr) -{ - LWIP_DEBUGF(TCP_DEBUG, ("TCP header:\n")); - LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(TCP_DEBUG, ("| %5"U16_F" | %5"U16_F" | (src port, dest port)\n", - lwip_ntohs(tcphdr->src), lwip_ntohs(tcphdr->dest))); - LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(TCP_DEBUG, ("| %010"U32_F" | (seq no)\n", - lwip_ntohl(tcphdr->seqno))); - LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(TCP_DEBUG, ("| %010"U32_F" | (ack no)\n", - lwip_ntohl(tcphdr->ackno))); - LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(TCP_DEBUG, ("| %2"U16_F" | |%"U16_F"%"U16_F"%"U16_F"%"U16_F"%"U16_F"%"U16_F"| %5"U16_F" | (hdrlen, flags (", - TCPH_HDRLEN(tcphdr), - (u16_t)(TCPH_FLAGS(tcphdr) >> 5 & 1), - (u16_t)(TCPH_FLAGS(tcphdr) >> 4 & 1), - (u16_t)(TCPH_FLAGS(tcphdr) >> 3 & 1), - (u16_t)(TCPH_FLAGS(tcphdr) >> 2 & 1), - (u16_t)(TCPH_FLAGS(tcphdr) >> 1 & 1), - (u16_t)(TCPH_FLAGS(tcphdr) & 1), - lwip_ntohs(tcphdr->wnd))); - tcp_debug_print_flags(TCPH_FLAGS(tcphdr)); - LWIP_DEBUGF(TCP_DEBUG, ("), win)\n")); - LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(TCP_DEBUG, ("| 0x%04"X16_F" | %5"U16_F" | (chksum, urgp)\n", - lwip_ntohs(tcphdr->chksum), lwip_ntohs(tcphdr->urgp))); - LWIP_DEBUGF(TCP_DEBUG, ("+-------------------------------+\n")); -} - -/** - * Print a tcp state for debugging purposes. - * - * @param s enum tcp_state to print - */ -void -tcp_debug_print_state(enum tcp_state s) -{ - LWIP_DEBUGF(TCP_DEBUG, ("State: %s\n", tcp_state_str[s])); -} - -/** - * Print tcp flags for debugging purposes. - * - * @param flags tcp flags, all active flags are printed - */ -void -tcp_debug_print_flags(u8_t flags) -{ - if (flags & TCP_FIN) { - LWIP_DEBUGF(TCP_DEBUG, ("FIN ")); - } - if (flags & TCP_SYN) { - LWIP_DEBUGF(TCP_DEBUG, ("SYN ")); - } - if (flags & TCP_RST) { - LWIP_DEBUGF(TCP_DEBUG, ("RST ")); - } - if (flags & TCP_PSH) { - LWIP_DEBUGF(TCP_DEBUG, ("PSH ")); - } - if (flags & TCP_ACK) { - LWIP_DEBUGF(TCP_DEBUG, ("ACK ")); - } - if (flags & TCP_URG) { - LWIP_DEBUGF(TCP_DEBUG, ("URG ")); - } - if (flags & TCP_ECE) { - LWIP_DEBUGF(TCP_DEBUG, ("ECE ")); - } - if (flags & TCP_CWR) { - LWIP_DEBUGF(TCP_DEBUG, ("CWR ")); - } - LWIP_DEBUGF(TCP_DEBUG, ("\n")); -} - -/** - * Print all tcp_pcbs in every list for debugging purposes. - */ -void -tcp_debug_print_pcbs(void) -{ - struct tcp_pcb *pcb; - struct tcp_pcb_listen *pcbl; - - LWIP_DEBUGF(TCP_DEBUG, ("Active PCB states:\n")); - for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { - LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F", foreign port %"U16_F" snd_nxt %"U32_F" rcv_nxt %"U32_F" ", - pcb->local_port, pcb->remote_port, - pcb->snd_nxt, pcb->rcv_nxt)); - tcp_debug_print_state(pcb->state); - } - - LWIP_DEBUGF(TCP_DEBUG, ("Listen PCB states:\n")); - for (pcbl = tcp_listen_pcbs.listen_pcbs; pcbl != NULL; pcbl = pcbl->next) { - LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F" ", pcbl->local_port)); - tcp_debug_print_state(pcbl->state); - } - - LWIP_DEBUGF(TCP_DEBUG, ("TIME-WAIT PCB states:\n")); - for (pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) { - LWIP_DEBUGF(TCP_DEBUG, ("Local port %"U16_F", foreign port %"U16_F" snd_nxt %"U32_F" rcv_nxt %"U32_F" ", - pcb->local_port, pcb->remote_port, - pcb->snd_nxt, pcb->rcv_nxt)); - tcp_debug_print_state(pcb->state); - } -} - -/** - * Check state consistency of the tcp_pcb lists. - */ -s16_t -tcp_pcbs_sane(void) -{ - struct tcp_pcb *pcb; - for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { - LWIP_ASSERT("tcp_pcbs_sane: active pcb->state != CLOSED", pcb->state != CLOSED); - LWIP_ASSERT("tcp_pcbs_sane: active pcb->state != LISTEN", pcb->state != LISTEN); - LWIP_ASSERT("tcp_pcbs_sane: active pcb->state != TIME-WAIT", pcb->state != TIME_WAIT); - } - for (pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) { - LWIP_ASSERT("tcp_pcbs_sane: tw pcb->state == TIME-WAIT", pcb->state == TIME_WAIT); - } - return 1; -} -#endif /* TCP_DEBUG */ - -#if LWIP_TCP_PCB_NUM_EXT_ARGS -/** - * @defgroup tcp_raw_extargs ext arguments - * @ingroup tcp_raw - * Additional data storage per tcp pcb\n - * @see @ref tcp_raw - * - * When LWIP_TCP_PCB_NUM_EXT_ARGS is > 0, every tcp pcb (including listen pcb) - * includes a number of additional argument entries in an array. - * - * To support memory management, in addition to a 'void *', callbacks can be - * provided to manage transition from listening pcbs to connections and to - * deallocate memory when a pcb is deallocated (see struct @ref tcp_ext_arg_callbacks). - * - * After allocating this index, use @ref tcp_ext_arg_set and @ref tcp_ext_arg_get - * to store and load arguments from this index for a given pcb. - */ - -static u8_t tcp_ext_arg_id; - -/** - * @ingroup tcp_raw_extargs - * Allocate an index to store data in ext_args member of struct tcp_pcb. - * Returned value is an index in mentioned array. - * The index is *global* over all pcbs! - * - * When @ref LWIP_TCP_PCB_NUM_EXT_ARGS is > 0, every tcp pcb (including listen pcb) - * includes a number of additional argument entries in an array. - * - * To support memory management, in addition to a 'void *', callbacks can be - * provided to manage transition from listening pcbs to connections and to - * deallocate memory when a pcb is deallocated (see struct @ref tcp_ext_arg_callbacks). - * - * After allocating this index, use @ref tcp_ext_arg_set and @ref tcp_ext_arg_get - * to store and load arguments from this index for a given pcb. - * - * @return a unique index into struct tcp_pcb.ext_args - */ -u8_t -tcp_ext_arg_alloc_id(void) -{ - u8_t result = tcp_ext_arg_id; - tcp_ext_arg_id++; - - LWIP_ASSERT_CORE_LOCKED(); - -#if LWIP_TCP_PCB_NUM_EXT_ARGS >= 255 -#error LWIP_TCP_PCB_NUM_EXT_ARGS -#endif - LWIP_ASSERT("Increase LWIP_TCP_PCB_NUM_EXT_ARGS in lwipopts.h", result < LWIP_TCP_PCB_NUM_EXT_ARGS); - return result; -} - -/** - * @ingroup tcp_raw_extargs - * Set callbacks for a given index of ext_args on the specified pcb. - * - * @param pcb tcp_pcb for which to set the callback - * @param id ext_args index to set (allocated via @ref tcp_ext_arg_alloc_id) - * @param callbacks callback table (const since it is referenced, not copied!) - */ -void -tcp_ext_arg_set_callbacks(struct tcp_pcb *pcb, uint8_t id, const struct tcp_ext_arg_callbacks * const callbacks) -{ - LWIP_ASSERT("pcb != NULL", pcb != NULL); - LWIP_ASSERT("id < LWIP_TCP_PCB_NUM_EXT_ARGS", id < LWIP_TCP_PCB_NUM_EXT_ARGS); - LWIP_ASSERT("callbacks != NULL", callbacks != NULL); - - LWIP_ASSERT_CORE_LOCKED(); - - pcb->ext_args[id].callbacks = callbacks; -} - -/** - * @ingroup tcp_raw_extargs - * Set data for a given index of ext_args on the specified pcb. - * - * @param pcb tcp_pcb for which to set the data - * @param id ext_args index to set (allocated via @ref tcp_ext_arg_alloc_id) - * @param arg data pointer to set - */ -void tcp_ext_arg_set(struct tcp_pcb *pcb, uint8_t id, void *arg) -{ - LWIP_ASSERT("pcb != NULL", pcb != NULL); - LWIP_ASSERT("id < LWIP_TCP_PCB_NUM_EXT_ARGS", id < LWIP_TCP_PCB_NUM_EXT_ARGS); - - LWIP_ASSERT_CORE_LOCKED(); - - pcb->ext_args[id].data = arg; -} - -/** - * @ingroup tcp_raw_extargs - * Set data for a given index of ext_args on the specified pcb. - * - * @param pcb tcp_pcb for which to set the data - * @param id ext_args index to set (allocated via @ref tcp_ext_arg_alloc_id) - * @return data pointer at the given index - */ -void *tcp_ext_arg_get(const struct tcp_pcb *pcb, uint8_t id) -{ - LWIP_ASSERT("pcb != NULL", pcb != NULL); - LWIP_ASSERT("id < LWIP_TCP_PCB_NUM_EXT_ARGS", id < LWIP_TCP_PCB_NUM_EXT_ARGS); - - LWIP_ASSERT_CORE_LOCKED(); - - return pcb->ext_args[id].data; -} - -/** This function calls the "destroy" callback for all ext_args once a pcb is - * freed. - */ -static void -tcp_ext_arg_invoke_callbacks_destroyed(struct tcp_pcb_ext_args *ext_args) -{ - int i; - LWIP_ASSERT("ext_args != NULL", ext_args != NULL); - - for (i = 0; i < LWIP_TCP_PCB_NUM_EXT_ARGS; i++) { - if (ext_args[i].callbacks != NULL) { - if (ext_args[i].callbacks->destroy != NULL) { - ext_args[i].callbacks->destroy((u8_t)i, ext_args[i].data); - } - } - } -} - -/** This function calls the "passive_open" callback for all ext_args if a connection - * is in the process of being accepted. This is called just after the SYN is - * received and before a SYN/ACK is sent, to allow to modify the very first - * segment sent even on passive open. Naturally, the "accepted" callback of the - * pcb has not been called yet! - */ -err_t -tcp_ext_arg_invoke_callbacks_passive_open(struct tcp_pcb_listen *lpcb, struct tcp_pcb *cpcb) -{ - int i; - LWIP_ASSERT("lpcb != NULL", lpcb != NULL); - LWIP_ASSERT("cpcb != NULL", cpcb != NULL); - - for (i = 0; i < LWIP_TCP_PCB_NUM_EXT_ARGS; i++) { - if (lpcb->ext_args[i].callbacks != NULL) { - if (lpcb->ext_args[i].callbacks->passive_open != NULL) { - err_t err = lpcb->ext_args[i].callbacks->passive_open((u8_t)i, lpcb, cpcb); - if (err != ERR_OK) { - return err; - } - } - } - } - return ERR_OK; -} -#endif /* LWIP_TCP_PCB_NUM_EXT_ARGS */ - -#endif /* LWIP_TCP */ diff --git a/core/c/core/tcp_in.c b/core/c/core/tcp_in.c deleted file mode 100755 index 720bdb6..0000000 --- a/core/c/core/tcp_in.c +++ /dev/null @@ -1,2194 +0,0 @@ -/** - * @file - * Transmission Control Protocol, incoming traffic - * - * The input processing functions of the TCP layer. - * - * These functions are generally called in the order (ip_input() ->) - * tcp_input() -> * tcp_process() -> tcp_receive() (-> application). - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/priv/tcp_priv.h" -#include "lwip/def.h" -#include "lwip/ip_addr.h" -#include "lwip/netif.h" -#include "lwip/mem.h" -#include "lwip/memp.h" -#include "lwip/inet_chksum.h" -#include "lwip/stats.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#if LWIP_ND6_TCP_REACHABILITY_HINTS -#include "lwip/nd6.h" -#endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */ - -#include - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif - -/** Initial CWND calculation as defined RFC 2581 */ -#define LWIP_TCP_CALC_INITIAL_CWND(mss) ((tcpwnd_size_t)LWIP_MIN((4U * (mss)), LWIP_MAX((2U * (mss)), 4380U))) - -/* These variables are global to all functions involved in the input - processing of TCP segments. They are set by the tcp_input() - function. */ -static struct tcp_seg inseg; -static struct tcp_hdr *tcphdr; -static u16_t tcphdr_optlen; -static u16_t tcphdr_opt1len; -static u8_t *tcphdr_opt2; -static u16_t tcp_optidx; -static u32_t seqno, ackno; -static tcpwnd_size_t recv_acked; -static u16_t tcplen; -static u8_t flags; - -static u8_t recv_flags; -static struct pbuf *recv_data; - -struct tcp_pcb *tcp_input_pcb; - -/* Forward declarations. */ -static err_t tcp_process(struct tcp_pcb *pcb); -static void tcp_receive(struct tcp_pcb *pcb); -static void tcp_parseopt(struct tcp_pcb *pcb); - -static void tcp_listen_input(struct tcp_pcb_listen *pcb); -static void tcp_timewait_input(struct tcp_pcb *pcb); - -static int tcp_input_delayed_close(struct tcp_pcb *pcb); - -#if LWIP_TCP_SACK_OUT -static void tcp_add_sack(struct tcp_pcb *pcb, u32_t left, u32_t right); -static void tcp_remove_sacks_lt(struct tcp_pcb *pcb, u32_t seq); -#if defined(TCP_OOSEQ_BYTES_LIMIT) || defined(TCP_OOSEQ_PBUFS_LIMIT) -static void tcp_remove_sacks_gt(struct tcp_pcb *pcb, u32_t seq); -#endif /* TCP_OOSEQ_BYTES_LIMIT || TCP_OOSEQ_PBUFS_LIMIT */ -#endif /* LWIP_TCP_SACK_OUT */ - -/** - * The initial input processing of TCP. It verifies the TCP header, demultiplexes - * the segment between the PCBs and passes it on to tcp_process(), which implements - * the TCP finite state machine. This function is called by the IP layer (in - * ip_input()). - * - * @param p received TCP segment to process (p->payload pointing to the TCP header) - * @param inp network interface on which this segment was received - */ -void -tcp_input(struct pbuf *p, struct netif *inp) -{ - struct tcp_pcb *pcb, *prev; - struct tcp_pcb_listen *lpcb; -#if SO_REUSE - struct tcp_pcb *lpcb_prev = NULL; - struct tcp_pcb_listen *lpcb_any = NULL; -#endif /* SO_REUSE */ - u8_t hdrlen_bytes; - err_t err; - - LWIP_UNUSED_ARG(inp); - LWIP_ASSERT_CORE_LOCKED(); - LWIP_ASSERT("tcp_input: invalid pbuf", p != NULL); - - PERF_START; - - TCP_STATS_INC(tcp.recv); - MIB2_STATS_INC(mib2.tcpinsegs); - - tcphdr = (struct tcp_hdr *)p->payload; - -#if TCP_INPUT_DEBUG - tcp_debug_print(tcphdr); -#endif - - /* Check that TCP header fits in payload */ - if (p->len < TCP_HLEN) { - /* drop short packets */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: short packet (%"U16_F" bytes) discarded\n", p->tot_len)); - TCP_STATS_INC(tcp.lenerr); - goto dropped; - } - - /* Don't even process incoming broadcasts/multicasts. */ - if (ip_addr_isbroadcast(ip_current_dest_addr(), ip_current_netif()) || - ip_addr_ismulticast(ip_current_dest_addr())) { - TCP_STATS_INC(tcp.proterr); - goto dropped; - } - -#if CHECKSUM_CHECK_TCP - IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_CHECK_TCP) { - /* Verify TCP checksum. */ - u16_t chksum = ip_chksum_pseudo(p, IP_PROTO_TCP, p->tot_len, - ip_current_src_addr(), ip_current_dest_addr()); - if (chksum != 0) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: packet discarded due to failing checksum 0x%04"X16_F"\n", - chksum)); - tcp_debug_print(tcphdr); - TCP_STATS_INC(tcp.chkerr); - goto dropped; - } - } -#endif /* CHECKSUM_CHECK_TCP */ - - /* sanity-check header length */ - hdrlen_bytes = TCPH_HDRLEN_BYTES(tcphdr); - if ((hdrlen_bytes < TCP_HLEN) || (hdrlen_bytes > p->tot_len)) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: invalid header length (%"U16_F")\n", (u16_t)hdrlen_bytes)); - TCP_STATS_INC(tcp.lenerr); - goto dropped; - } - - /* Move the payload pointer in the pbuf so that it points to the - TCP data instead of the TCP header. */ - tcphdr_optlen = (u16_t)(hdrlen_bytes - TCP_HLEN); - tcphdr_opt2 = NULL; - if (p->len >= hdrlen_bytes) { - /* all options are in the first pbuf */ - tcphdr_opt1len = tcphdr_optlen; - pbuf_remove_header(p, hdrlen_bytes); /* cannot fail */ - } else { - u16_t opt2len; - /* TCP header fits into first pbuf, options don't - data is in the next pbuf */ - /* there must be a next pbuf, due to hdrlen_bytes sanity check above */ - LWIP_ASSERT("p->next != NULL", p->next != NULL); - - /* advance over the TCP header (cannot fail) */ - pbuf_remove_header(p, TCP_HLEN); - - /* determine how long the first and second parts of the options are */ - tcphdr_opt1len = p->len; - opt2len = (u16_t)(tcphdr_optlen - tcphdr_opt1len); - - /* options continue in the next pbuf: set p to zero length and hide the - options in the next pbuf (adjusting p->tot_len) */ - pbuf_remove_header(p, tcphdr_opt1len); - - /* check that the options fit in the second pbuf */ - if (opt2len > p->next->len) { - /* drop short packets */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: options overflow second pbuf (%"U16_F" bytes)\n", p->next->len)); - TCP_STATS_INC(tcp.lenerr); - goto dropped; - } - - /* remember the pointer to the second part of the options */ - tcphdr_opt2 = (u8_t *)p->next->payload; - - /* advance p->next to point after the options, and manually - adjust p->tot_len to keep it consistent with the changed p->next */ - pbuf_remove_header(p->next, opt2len); - p->tot_len = (u16_t)(p->tot_len - opt2len); - - LWIP_ASSERT("p->len == 0", p->len == 0); - LWIP_ASSERT("p->tot_len == p->next->tot_len", p->tot_len == p->next->tot_len); - } - - /* Convert fields in TCP header to host byte order. */ - tcphdr->src = lwip_ntohs(tcphdr->src); - tcphdr->dest = lwip_ntohs(tcphdr->dest); - seqno = tcphdr->seqno = lwip_ntohl(tcphdr->seqno); - ackno = tcphdr->ackno = lwip_ntohl(tcphdr->ackno); - tcphdr->wnd = lwip_ntohs(tcphdr->wnd); - - flags = TCPH_FLAGS(tcphdr); - tcplen = p->tot_len; - if (flags & (TCP_FIN | TCP_SYN)) { - tcplen++; - if (tcplen < p->tot_len) { - /* u16_t overflow, cannot handle this */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: length u16_t overflow, cannot handle this\n")); - TCP_STATS_INC(tcp.lenerr); - goto dropped; - } - } - - /* Demultiplex an incoming segment. First, we check if it is destined - for an active connection. */ - prev = NULL; - - for (pcb = tcp_active_pcbs; pcb != NULL; pcb = pcb->next) { - LWIP_ASSERT("tcp_input: active pcb->state != CLOSED", pcb->state != CLOSED); - LWIP_ASSERT("tcp_input: active pcb->state != TIME-WAIT", pcb->state != TIME_WAIT); - LWIP_ASSERT("tcp_input: active pcb->state != LISTEN", pcb->state != LISTEN); - - /* check if PCB is bound to specific netif */ - if ((pcb->netif_idx != NETIF_NO_INDEX) && - (pcb->netif_idx != netif_get_index(ip_data.current_input_netif))) { - prev = pcb; - continue; - } - - if (pcb->remote_port == tcphdr->src && - pcb->local_port == tcphdr->dest && - ip_addr_cmp(&pcb->remote_ip, ip_current_src_addr()) && - ip_addr_cmp(&pcb->local_ip, ip_current_dest_addr())) { - /* Move this PCB to the front of the list so that subsequent - lookups will be faster (we exploit locality in TCP segment - arrivals). */ - LWIP_ASSERT("tcp_input: pcb->next != pcb (before cache)", pcb->next != pcb); - if (prev != NULL) { - prev->next = pcb->next; - pcb->next = tcp_active_pcbs; - tcp_active_pcbs = pcb; - } else { - TCP_STATS_INC(tcp.cachehit); - } - LWIP_ASSERT("tcp_input: pcb->next != pcb (after cache)", pcb->next != pcb); - break; - } - prev = pcb; - } - - if (pcb == NULL) { - /* If it did not go to an active connection, we check the connections - in the TIME-WAIT state. */ - for (pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) { - LWIP_ASSERT("tcp_input: TIME-WAIT pcb->state == TIME-WAIT", pcb->state == TIME_WAIT); - - /* check if PCB is bound to specific netif */ - if ((pcb->netif_idx != NETIF_NO_INDEX) && - (pcb->netif_idx != netif_get_index(ip_data.current_input_netif))) { - continue; - } - - if (pcb->remote_port == tcphdr->src && - pcb->local_port == tcphdr->dest && - ip_addr_cmp(&pcb->remote_ip, ip_current_src_addr()) && - ip_addr_cmp(&pcb->local_ip, ip_current_dest_addr())) { - /* We don't really care enough to move this PCB to the front - of the list since we are not very likely to receive that - many segments for connections in TIME-WAIT. */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: packed for TIME_WAITing connection.\n")); -#ifdef LWIP_HOOK_TCP_INPACKET_PCB - if (LWIP_HOOK_TCP_INPACKET_PCB(pcb, tcphdr, tcphdr_optlen, tcphdr_opt1len, - tcphdr_opt2, p) == ERR_OK) -#endif - { - tcp_timewait_input(pcb); - } - pbuf_free(p); - return; - } - } - - /* Finally, if we still did not get a match, we check all PCBs that - are LISTENing for incoming connections. */ - prev = NULL; - for (lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) { -#if TUN2SOCKS - // go-tun2socks logic - // use the first one, and it should be set to the loopif - break; -#endif /* TUN2SOCKS */ - - /* check if PCB is bound to specific netif */ - if ((lpcb->netif_idx != NETIF_NO_INDEX) && - (lpcb->netif_idx != netif_get_index(ip_data.current_input_netif))) { - prev = (struct tcp_pcb *)lpcb; - continue; - } - - if (lpcb->local_port == tcphdr->dest) { - if (IP_IS_ANY_TYPE_VAL(lpcb->local_ip)) { - /* found an ANY TYPE (IPv4/IPv6) match */ -#if SO_REUSE - lpcb_any = lpcb; - lpcb_prev = prev; -#else /* SO_REUSE */ - break; -#endif /* SO_REUSE */ - } else if (IP_ADDR_PCB_VERSION_MATCH_EXACT(lpcb, ip_current_dest_addr())) { - if (ip_addr_cmp(&lpcb->local_ip, ip_current_dest_addr())) { - /* found an exact match */ - break; - } else if (ip_addr_isany(&lpcb->local_ip)) { - /* found an ANY-match */ -#if SO_REUSE - lpcb_any = lpcb; - lpcb_prev = prev; -#else /* SO_REUSE */ - break; -#endif /* SO_REUSE */ - } - } - } - prev = (struct tcp_pcb *)lpcb; - } -#if SO_REUSE - /* first try specific local IP */ - if (lpcb == NULL) { - /* only pass to ANY if no specific local IP has been found */ - lpcb = lpcb_any; - prev = lpcb_prev; - } -#endif /* SO_REUSE */ - if (lpcb != NULL) { - /* Move this PCB to the front of the list so that subsequent - lookups will be faster (we exploit locality in TCP segment - arrivals). */ - if (prev != NULL) { - ((struct tcp_pcb_listen *)prev)->next = lpcb->next; - /* our successor is the remainder of the listening list */ - lpcb->next = tcp_listen_pcbs.listen_pcbs; - /* put this listening pcb at the head of the listening list */ - tcp_listen_pcbs.listen_pcbs = lpcb; - } else { - TCP_STATS_INC(tcp.cachehit); - } - - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: packed for LISTENing connection.\n")); -#ifdef LWIP_HOOK_TCP_INPACKET_PCB - if (LWIP_HOOK_TCP_INPACKET_PCB((struct tcp_pcb *)lpcb, tcphdr, tcphdr_optlen, - tcphdr_opt1len, tcphdr_opt2, p) == ERR_OK) -#endif - { - tcp_listen_input(lpcb); - } - pbuf_free(p); - return; - } - } - -#if TCP_INPUT_DEBUG - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("+-+-+-+-+-+-+-+-+-+-+-+-+-+- tcp_input: flags ")); - tcp_debug_print_flags(TCPH_FLAGS(tcphdr)); - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("-+-+-+-+-+-+-+-+-+-+-+-+-+-+\n")); -#endif /* TCP_INPUT_DEBUG */ - - -#ifdef LWIP_HOOK_TCP_INPACKET_PCB - if ((pcb != NULL) && LWIP_HOOK_TCP_INPACKET_PCB(pcb, tcphdr, tcphdr_optlen, - tcphdr_opt1len, tcphdr_opt2, p) != ERR_OK) { - pbuf_free(p); - return; - } -#endif - if (pcb != NULL) { - /* The incoming segment belongs to a connection. */ -#if TCP_INPUT_DEBUG - tcp_debug_print_state(pcb->state); -#endif /* TCP_INPUT_DEBUG */ - - /* Set up a tcp_seg structure. */ - inseg.next = NULL; - inseg.len = p->tot_len; - inseg.p = p; - inseg.tcphdr = tcphdr; - - recv_data = NULL; - recv_flags = 0; - recv_acked = 0; - - if (flags & TCP_PSH) { - p->flags |= PBUF_FLAG_PUSH; - } - - /* If there is data which was previously "refused" by upper layer */ - if (pcb->refused_data != NULL) { - if ((tcp_process_refused_data(pcb) == ERR_ABRT) || - ((pcb->refused_data != NULL) && (tcplen > 0))) { - /* pcb has been aborted or refused data is still refused and the new - segment contains data */ - if (pcb->rcv_ann_wnd == 0) { - /* this is a zero-window probe, we respond to it with current RCV.NXT - and drop the data segment */ - tcp_send_empty_ack(pcb); - } - TCP_STATS_INC(tcp.drop); - MIB2_STATS_INC(mib2.tcpinerrs); - goto aborted; - } - } - tcp_input_pcb = pcb; - err = tcp_process(pcb); - /* A return value of ERR_ABRT means that tcp_abort() was called - and that the pcb has been freed. If so, we don't do anything. */ - if (err != ERR_ABRT) { - if (recv_flags & TF_RESET) { - /* TF_RESET means that the connection was reset by the other - end. We then call the error callback to inform the - application that the connection is dead before we - deallocate the PCB. */ - TCP_EVENT_ERR(pcb->state, pcb->errf, pcb->callback_arg, ERR_RST); - tcp_pcb_remove(&tcp_active_pcbs, pcb); - tcp_free(pcb); - } else { - err = ERR_OK; - /* If the application has registered a "sent" function to be - called when new send buffer space is available, we call it - now. */ - if (recv_acked > 0) { - u16_t acked16; -#if LWIP_WND_SCALE - /* recv_acked is u32_t but the sent callback only takes a u16_t, - so we might have to call it multiple times. */ - u32_t acked = recv_acked; - while (acked > 0) { - acked16 = (u16_t)LWIP_MIN(acked, 0xffffu); - acked -= acked16; -#else - { - acked16 = recv_acked; -#endif - TCP_EVENT_SENT(pcb, (u16_t)acked16, err); - if (err == ERR_ABRT) { - goto aborted; - } - } - recv_acked = 0; - } - if (tcp_input_delayed_close(pcb)) { - goto aborted; - } -#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE - while (recv_data != NULL) { - struct pbuf *rest = NULL; - pbuf_split_64k(recv_data, &rest); -#else /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - if (recv_data != NULL) { -#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - - LWIP_ASSERT("pcb->refused_data == NULL", pcb->refused_data == NULL); - if (pcb->flags & TF_RXCLOSED) { - /* received data although already closed -> abort (send RST) to - notify the remote host that not all data has been processed */ - pbuf_free(recv_data); -#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE - if (rest != NULL) { - pbuf_free(rest); - } -#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - tcp_abort(pcb); - goto aborted; - } - - /* Notify application that data has been received. */ - TCP_EVENT_RECV(pcb, recv_data, ERR_OK, err); - if (err == ERR_ABRT) { -#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE - if (rest != NULL) { - pbuf_free(rest); - } -#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - goto aborted; - } - - /* If the upper layer can't receive this data, store it */ - if (err != ERR_OK) { -#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE - if (rest != NULL) { - pbuf_cat(recv_data, rest); - } -#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - pcb->refused_data = recv_data; - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_input: keep incoming packet, because pcb is \"full\"\n")); -#if TCP_QUEUE_OOSEQ && LWIP_WND_SCALE - break; - } else { - /* Upper layer received the data, go on with the rest if > 64K */ - recv_data = rest; -#endif /* TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - } - } - - /* If a FIN segment was received, we call the callback - function with a NULL buffer to indicate EOF. */ - if (recv_flags & TF_GOT_FIN) { - if (pcb->refused_data != NULL) { - /* Delay this if we have refused data. */ - pcb->refused_data->flags |= PBUF_FLAG_TCP_FIN; - } else { - /* correct rcv_wnd as the application won't call tcp_recved() - for the FIN's seqno */ - if (pcb->rcv_wnd != TCP_WND_MAX(pcb)) { - pcb->rcv_wnd++; - } - TCP_EVENT_CLOSED(pcb, err); - if (err == ERR_ABRT) { - goto aborted; - } - } - } - - tcp_input_pcb = NULL; - if (tcp_input_delayed_close(pcb)) { - goto aborted; - } - /* Try to send something out. */ - tcp_output(pcb); -#if TCP_INPUT_DEBUG -#if TCP_DEBUG - tcp_debug_print_state(pcb->state); -#endif /* TCP_DEBUG */ -#endif /* TCP_INPUT_DEBUG */ - } - } - /* Jump target if pcb has been aborted in a callback (by calling tcp_abort()). - Below this line, 'pcb' may not be dereferenced! */ -aborted: - tcp_input_pcb = NULL; - recv_data = NULL; - - /* give up our reference to inseg.p */ - if (inseg.p != NULL) { - pbuf_free(inseg.p); - inseg.p = NULL; - } - } else { - /* If no matching PCB was found, send a TCP RST (reset) to the - sender. */ - LWIP_DEBUGF(TCP_RST_DEBUG, ("tcp_input: no PCB match found, resetting.\n")); - if (!(TCPH_FLAGS(tcphdr) & TCP_RST)) { - TCP_STATS_INC(tcp.proterr); - TCP_STATS_INC(tcp.drop); - tcp_rst(NULL, ackno, seqno + tcplen, ip_current_dest_addr(), - ip_current_src_addr(), tcphdr->dest, tcphdr->src); - } - pbuf_free(p); - } - - LWIP_ASSERT("tcp_input: tcp_pcbs_sane()", tcp_pcbs_sane()); - PERF_STOP("tcp_input"); - return; -dropped: - TCP_STATS_INC(tcp.drop); - MIB2_STATS_INC(mib2.tcpinerrs); - pbuf_free(p); -} - -/** Called from tcp_input to check for TF_CLOSED flag. This results in closing - * and deallocating a pcb at the correct place to ensure noone references it - * any more. - * @returns 1 if the pcb has been closed and deallocated, 0 otherwise - */ -static int -tcp_input_delayed_close(struct tcp_pcb *pcb) -{ - LWIP_ASSERT("tcp_input_delayed_close: invalid pcb", pcb != NULL); - - if (recv_flags & TF_CLOSED) { - /* The connection has been closed and we will deallocate the - PCB. */ - if (!(pcb->flags & TF_RXCLOSED)) { - /* Connection closed although the application has only shut down the - tx side: call the PCB's err callback and indicate the closure to - ensure the application doesn't continue using the PCB. */ - TCP_EVENT_ERR(pcb->state, pcb->errf, pcb->callback_arg, ERR_CLSD); - } - tcp_pcb_remove(&tcp_active_pcbs, pcb); - tcp_free(pcb); - return 1; - } - return 0; -} - -/** - * Called by tcp_input() when a segment arrives for a listening - * connection (from tcp_input()). - * - * @param pcb the tcp_pcb_listen for which a segment arrived - * - * @note the segment which arrived is saved in global variables, therefore only the pcb - * involved is passed as a parameter to this function - */ -static void -tcp_listen_input(struct tcp_pcb_listen *pcb) -{ - struct tcp_pcb *npcb; - u32_t iss; - err_t rc; - - if (flags & TCP_RST) { - /* An incoming RST should be ignored. Return. */ - return; - } - - LWIP_ASSERT("tcp_listen_input: invalid pcb", pcb != NULL); - - /* In the LISTEN state, we check for incoming SYN segments, - creates a new PCB, and responds with a SYN|ACK. */ - if (flags & TCP_ACK) { - /* For incoming segments with the ACK flag set, respond with a - RST. */ - LWIP_DEBUGF(TCP_RST_DEBUG, ("tcp_listen_input: ACK in LISTEN, sending reset\n")); - tcp_rst((const struct tcp_pcb *)pcb, ackno, seqno + tcplen, ip_current_dest_addr(), - ip_current_src_addr(), tcphdr->dest, tcphdr->src); - } else if (flags & TCP_SYN) { - LWIP_DEBUGF(TCP_DEBUG, ("TCP connection request %"U16_F" -> %"U16_F".\n", tcphdr->src, tcphdr->dest)); -#if TCP_LISTEN_BACKLOG - if (pcb->accepts_pending >= pcb->backlog) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_listen_input: listen backlog exceeded for port %"U16_F"\n", tcphdr->dest)); - return; - } -#endif /* TCP_LISTEN_BACKLOG */ - npcb = tcp_alloc(pcb->prio); - /* If a new PCB could not be created (probably due to lack of memory), - we don't do anything, but rely on the sender will retransmit the - SYN at a time when we have more memory available. */ - if (npcb == NULL) { - err_t err; - LWIP_DEBUGF(TCP_DEBUG, ("tcp_listen_input: could not allocate PCB\n")); - TCP_STATS_INC(tcp.memerr); - TCP_EVENT_ACCEPT(pcb, NULL, pcb->callback_arg, ERR_MEM, err); - LWIP_UNUSED_ARG(err); /* err not useful here */ - return; - } -#if TCP_LISTEN_BACKLOG - pcb->accepts_pending++; - tcp_set_flags(npcb, TF_BACKLOGPEND); -#endif /* TCP_LISTEN_BACKLOG */ - /* Set up the new PCB. */ - ip_addr_copy(npcb->local_ip, *ip_current_dest_addr()); - ip_addr_copy(npcb->remote_ip, *ip_current_src_addr()); - npcb->local_port = pcb->local_port; - -#if TUN2SOCKS - // go-tun2socks logic - // Always reset local port to the dest of the connection, because we are - // accepting all incomming connections, regardless of there destination addresses, - // as such, npcb is acting as the server socket that communicates with the - // client socket. - npcb->local_port = tcphdr->dest; -#endif /* TUN2SOCKS */ - - npcb->remote_port = tcphdr->src; - npcb->state = SYN_RCVD; - npcb->rcv_nxt = seqno + 1; - npcb->rcv_ann_right_edge = npcb->rcv_nxt; - iss = tcp_next_iss(npcb); - npcb->snd_wl2 = iss; - npcb->snd_nxt = iss; - npcb->lastack = iss; - npcb->snd_lbb = iss; - npcb->snd_wl1 = seqno - 1;/* initialise to seqno-1 to force window update */ - npcb->callback_arg = pcb->callback_arg; -#if LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG - npcb->listener = pcb; -#endif /* LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG */ - /* inherit socket options */ - npcb->so_options = pcb->so_options & SOF_INHERITED; - npcb->netif_idx = pcb->netif_idx; - /* Register the new PCB so that we can begin receiving segments - for it. */ - TCP_REG_ACTIVE(npcb); - - /* Parse any options in the SYN. */ - tcp_parseopt(npcb); - npcb->snd_wnd = tcphdr->wnd; - npcb->snd_wnd_max = npcb->snd_wnd; - -#if TCP_CALCULATE_EFF_SEND_MSS - npcb->mss = tcp_eff_send_mss(npcb->mss, &npcb->local_ip, &npcb->remote_ip); -#endif /* TCP_CALCULATE_EFF_SEND_MSS */ - - MIB2_STATS_INC(mib2.tcppassiveopens); - -#if LWIP_TCP_PCB_NUM_EXT_ARGS - if (tcp_ext_arg_invoke_callbacks_passive_open(pcb, npcb) != ERR_OK) { - tcp_abandon(npcb, 0); - return; - } -#endif - - /* Send a SYN|ACK together with the MSS option. */ - rc = tcp_enqueue_flags(npcb, TCP_SYN | TCP_ACK); - if (rc != ERR_OK) { - tcp_abandon(npcb, 0); - return; - } - tcp_output(npcb); - } - return; -} - -/** - * Called by tcp_input() when a segment arrives for a connection in - * TIME_WAIT. - * - * @param pcb the tcp_pcb for which a segment arrived - * - * @note the segment which arrived is saved in global variables, therefore only the pcb - * involved is passed as a parameter to this function - */ -static void -tcp_timewait_input(struct tcp_pcb *pcb) -{ - /* RFC 1337: in TIME_WAIT, ignore RST and ACK FINs + any 'acceptable' segments */ - /* RFC 793 3.9 Event Processing - Segment Arrives: - * - first check sequence number - we skip that one in TIME_WAIT (always - * acceptable since we only send ACKs) - * - second check the RST bit (... return) */ - if (flags & TCP_RST) { - return; - } - - LWIP_ASSERT("tcp_timewait_input: invalid pcb", pcb != NULL); - - /* - fourth, check the SYN bit, */ - if (flags & TCP_SYN) { - /* If an incoming segment is not acceptable, an acknowledgment - should be sent in reply */ - if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, pcb->rcv_nxt + pcb->rcv_wnd)) { - /* If the SYN is in the window it is an error, send a reset */ - tcp_rst(pcb, ackno, seqno + tcplen, ip_current_dest_addr(), - ip_current_src_addr(), tcphdr->dest, tcphdr->src); - return; - } - } else if (flags & TCP_FIN) { - /* - eighth, check the FIN bit: Remain in the TIME-WAIT state. - Restart the 2 MSL time-wait timeout.*/ - pcb->tmr = tcp_ticks; - } - - if ((tcplen > 0)) { - /* Acknowledge data, FIN or out-of-window SYN */ - tcp_ack_now(pcb); - tcp_output(pcb); - } - return; -} - -/** - * Implements the TCP state machine. Called by tcp_input. In some - * states tcp_receive() is called to receive data. The tcp_seg - * argument will be freed by the caller (tcp_input()) unless the - * recv_data pointer in the pcb is set. - * - * @param pcb the tcp_pcb for which a segment arrived - * - * @note the segment which arrived is saved in global variables, therefore only the pcb - * involved is passed as a parameter to this function - */ -static err_t -tcp_process(struct tcp_pcb *pcb) -{ - struct tcp_seg *rseg; - u8_t acceptable = 0; - err_t err; - - err = ERR_OK; - - LWIP_ASSERT("tcp_process: invalid pcb", pcb != NULL); - - /* Process incoming RST segments. */ - if (flags & TCP_RST) { - /* First, determine if the reset is acceptable. */ - if (pcb->state == SYN_SENT) { - /* "In the SYN-SENT state (a RST received in response to an initial SYN), - the RST is acceptable if the ACK field acknowledges the SYN." */ - if (ackno == pcb->snd_nxt) { - acceptable = 1; - } - } else { - /* "In all states except SYN-SENT, all reset (RST) segments are validated - by checking their SEQ-fields." */ - if (seqno == pcb->rcv_nxt) { - acceptable = 1; - } else if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, - pcb->rcv_nxt + pcb->rcv_wnd)) { - /* If the sequence number is inside the window, we send a challenge ACK - and wait for a re-send with matching sequence number. - This follows RFC 5961 section 3.2 and addresses CVE-2004-0230 - (RST spoofing attack), which is present in RFC 793 RST handling. */ - tcp_ack_now(pcb); - } - } - - if (acceptable) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_process: Connection RESET\n")); - LWIP_ASSERT("tcp_input: pcb->state != CLOSED", pcb->state != CLOSED); - recv_flags |= TF_RESET; - tcp_clear_flags(pcb, TF_ACK_DELAY); - return ERR_RST; - } else { - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_process: unacceptable reset seqno %"U32_F" rcv_nxt %"U32_F"\n", - seqno, pcb->rcv_nxt)); - LWIP_DEBUGF(TCP_DEBUG, ("tcp_process: unacceptable reset seqno %"U32_F" rcv_nxt %"U32_F"\n", - seqno, pcb->rcv_nxt)); - return ERR_OK; - } - } - - if ((flags & TCP_SYN) && (pcb->state != SYN_SENT && pcb->state != SYN_RCVD)) { - /* Cope with new connection attempt after remote end crashed */ - tcp_ack_now(pcb); - return ERR_OK; - } - - if ((pcb->flags & TF_RXCLOSED) == 0) { - /* Update the PCB (in)activity timer unless rx is closed (see tcp_shutdown) */ - pcb->tmr = tcp_ticks; - } - pcb->keep_cnt_sent = 0; - pcb->persist_probe = 0; - - tcp_parseopt(pcb); - - /* Do different things depending on the TCP state. */ - switch (pcb->state) { - case SYN_SENT: - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("SYN-SENT: ackno %"U32_F" pcb->snd_nxt %"U32_F" unacked %"U32_F"\n", ackno, - pcb->snd_nxt, lwip_ntohl(pcb->unacked->tcphdr->seqno))); - /* received SYN ACK with expected sequence number? */ - if ((flags & TCP_ACK) && (flags & TCP_SYN) - && (ackno == pcb->lastack + 1)) { - pcb->rcv_nxt = seqno + 1; - pcb->rcv_ann_right_edge = pcb->rcv_nxt; - pcb->lastack = ackno; - pcb->snd_wnd = tcphdr->wnd; - pcb->snd_wnd_max = pcb->snd_wnd; - pcb->snd_wl1 = seqno - 1; /* initialise to seqno - 1 to force window update */ - pcb->state = ESTABLISHED; - -#if TCP_CALCULATE_EFF_SEND_MSS - pcb->mss = tcp_eff_send_mss(pcb->mss, &pcb->local_ip, &pcb->remote_ip); -#endif /* TCP_CALCULATE_EFF_SEND_MSS */ - - pcb->cwnd = LWIP_TCP_CALC_INITIAL_CWND(pcb->mss); - LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_process (SENT): cwnd %"TCPWNDSIZE_F - " ssthresh %"TCPWNDSIZE_F"\n", - pcb->cwnd, pcb->ssthresh)); - LWIP_ASSERT("pcb->snd_queuelen > 0", (pcb->snd_queuelen > 0)); - --pcb->snd_queuelen; - LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_process: SYN-SENT --queuelen %"TCPWNDSIZE_F"\n", (tcpwnd_size_t)pcb->snd_queuelen)); - rseg = pcb->unacked; - if (rseg == NULL) { - /* might happen if tcp_output fails in tcp_rexmit_rto() - in which case the segment is on the unsent list */ - rseg = pcb->unsent; - LWIP_ASSERT("no segment to free", rseg != NULL); - pcb->unsent = rseg->next; - } else { - pcb->unacked = rseg->next; - } - tcp_seg_free(rseg); - - /* If there's nothing left to acknowledge, stop the retransmit - timer, otherwise reset it to start again */ - if (pcb->unacked == NULL) { - pcb->rtime = -1; - } else { - pcb->rtime = 0; - pcb->nrtx = 0; - } - - /* Call the user specified function to call when successfully - * connected. */ - TCP_EVENT_CONNECTED(pcb, ERR_OK, err); - if (err == ERR_ABRT) { - return ERR_ABRT; - } - tcp_ack_now(pcb); - } - /* received ACK? possibly a half-open connection */ - else if (flags & TCP_ACK) { - /* send a RST to bring the other side in a non-synchronized state. */ - tcp_rst(pcb, ackno, seqno + tcplen, ip_current_dest_addr(), - ip_current_src_addr(), tcphdr->dest, tcphdr->src); - /* Resend SYN immediately (don't wait for rto timeout) to establish - connection faster, but do not send more SYNs than we otherwise would - have, or we might get caught in a loop on loopback interfaces. */ - if (pcb->nrtx < TCP_SYNMAXRTX) { - pcb->rtime = 0; - tcp_rexmit_rto(pcb); - } - } - break; - case SYN_RCVD: - if (flags & TCP_ACK) { - /* expected ACK number? */ - if (TCP_SEQ_BETWEEN(ackno, pcb->lastack + 1, pcb->snd_nxt)) { - pcb->state = ESTABLISHED; - LWIP_DEBUGF(TCP_DEBUG, ("TCP connection established %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest)); -#if LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG - if (pcb->listener == NULL) { - /* listen pcb might be closed by now */ - err = ERR_VAL; - } else -#endif /* LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG */ - { -#if LWIP_CALLBACK_API - LWIP_ASSERT("pcb->listener->accept != NULL", pcb->listener->accept != NULL); -#endif - tcp_backlog_accepted(pcb); - /* Call the accept function. */ - TCP_EVENT_ACCEPT(pcb->listener, pcb, pcb->callback_arg, ERR_OK, err); - } - if (err != ERR_OK) { - /* If the accept function returns with an error, we abort - * the connection. */ - /* Already aborted? */ - if (err != ERR_ABRT) { - tcp_abort(pcb); - } - return ERR_ABRT; - } - /* If there was any data contained within this ACK, - * we'd better pass it on to the application as well. */ - tcp_receive(pcb); - - /* Prevent ACK for SYN to generate a sent event */ - if (recv_acked != 0) { - recv_acked--; - } - - pcb->cwnd = LWIP_TCP_CALC_INITIAL_CWND(pcb->mss); - LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_process (SYN_RCVD): cwnd %"TCPWNDSIZE_F - " ssthresh %"TCPWNDSIZE_F"\n", - pcb->cwnd, pcb->ssthresh)); - - if (recv_flags & TF_GOT_FIN) { - tcp_ack_now(pcb); - pcb->state = CLOSE_WAIT; - } - } else { - /* incorrect ACK number, send RST */ - tcp_rst(pcb, ackno, seqno + tcplen, ip_current_dest_addr(), - ip_current_src_addr(), tcphdr->dest, tcphdr->src); - } - } else if ((flags & TCP_SYN) && (seqno == pcb->rcv_nxt - 1)) { - /* Looks like another copy of the SYN - retransmit our SYN-ACK */ - tcp_rexmit(pcb); - } - break; - case CLOSE_WAIT: - /* FALLTHROUGH */ - case ESTABLISHED: - tcp_receive(pcb); - if (recv_flags & TF_GOT_FIN) { /* passive close */ - tcp_ack_now(pcb); - pcb->state = CLOSE_WAIT; - } - break; - case FIN_WAIT_1: - tcp_receive(pcb); - if (recv_flags & TF_GOT_FIN) { - if ((flags & TCP_ACK) && (ackno == pcb->snd_nxt) && - pcb->unsent == NULL) { - LWIP_DEBUGF(TCP_DEBUG, - ("TCP connection closed: FIN_WAIT_1 %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest)); - tcp_ack_now(pcb); - tcp_pcb_purge(pcb); - TCP_RMV_ACTIVE(pcb); - pcb->state = TIME_WAIT; - TCP_REG(&tcp_tw_pcbs, pcb); - } else { - tcp_ack_now(pcb); - pcb->state = CLOSING; - } - } else if ((flags & TCP_ACK) && (ackno == pcb->snd_nxt) && - pcb->unsent == NULL) { - pcb->state = FIN_WAIT_2; - } - break; - case FIN_WAIT_2: - tcp_receive(pcb); - if (recv_flags & TF_GOT_FIN) { - LWIP_DEBUGF(TCP_DEBUG, ("TCP connection closed: FIN_WAIT_2 %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest)); - tcp_ack_now(pcb); - tcp_pcb_purge(pcb); - TCP_RMV_ACTIVE(pcb); - pcb->state = TIME_WAIT; - TCP_REG(&tcp_tw_pcbs, pcb); - } - break; - case CLOSING: - tcp_receive(pcb); - if ((flags & TCP_ACK) && ackno == pcb->snd_nxt && pcb->unsent == NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("TCP connection closed: CLOSING %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest)); - tcp_pcb_purge(pcb); - TCP_RMV_ACTIVE(pcb); - pcb->state = TIME_WAIT; - TCP_REG(&tcp_tw_pcbs, pcb); - } - break; - case LAST_ACK: - tcp_receive(pcb); - if ((flags & TCP_ACK) && ackno == pcb->snd_nxt && pcb->unsent == NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("TCP connection closed: LAST_ACK %"U16_F" -> %"U16_F".\n", inseg.tcphdr->src, inseg.tcphdr->dest)); - /* bugfix #21699: don't set pcb->state to CLOSED here or we risk leaking segments */ - recv_flags |= TF_CLOSED; - } - break; - default: - break; - } - return ERR_OK; -} - -#if TCP_QUEUE_OOSEQ -/** - * Insert segment into the list (segments covered with new one will be deleted) - * - * Called from tcp_receive() - */ -static void -tcp_oos_insert_segment(struct tcp_seg *cseg, struct tcp_seg *next) -{ - struct tcp_seg *old_seg; - - LWIP_ASSERT("tcp_oos_insert_segment: invalid cseg", cseg != NULL); - - if (TCPH_FLAGS(cseg->tcphdr) & TCP_FIN) { - /* received segment overlaps all following segments */ - tcp_segs_free(next); - next = NULL; - } else { - /* delete some following segments - oos queue may have segments with FIN flag */ - while (next && - TCP_SEQ_GEQ((seqno + cseg->len), - (next->tcphdr->seqno + next->len))) { - /* cseg with FIN already processed */ - if (TCPH_FLAGS(next->tcphdr) & TCP_FIN) { - TCPH_SET_FLAG(cseg->tcphdr, TCP_FIN); - } - old_seg = next; - next = next->next; - tcp_seg_free(old_seg); - } - if (next && - TCP_SEQ_GT(seqno + cseg->len, next->tcphdr->seqno)) { - /* We need to trim the incoming segment. */ - cseg->len = (u16_t)(next->tcphdr->seqno - seqno); - pbuf_realloc(cseg->p, cseg->len); - } - } - cseg->next = next; -} -#endif /* TCP_QUEUE_OOSEQ */ - -/** Remove segments from a list if the incoming ACK acknowledges them */ -static struct tcp_seg * -tcp_free_acked_segments(struct tcp_pcb *pcb, struct tcp_seg *seg_list, const char *dbg_list_name, - struct tcp_seg *dbg_other_seg_list) -{ - struct tcp_seg *next; - u16_t clen; - - LWIP_UNUSED_ARG(dbg_list_name); - LWIP_UNUSED_ARG(dbg_other_seg_list); - - while (seg_list != NULL && - TCP_SEQ_LEQ(lwip_ntohl(seg_list->tcphdr->seqno) + - TCP_TCPLEN(seg_list), ackno)) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: removing %"U32_F":%"U32_F" from pcb->%s\n", - lwip_ntohl(seg_list->tcphdr->seqno), - lwip_ntohl(seg_list->tcphdr->seqno) + TCP_TCPLEN(seg_list), - dbg_list_name)); - - next = seg_list; - seg_list = seg_list->next; - - clen = pbuf_clen(next->p); - LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_receive: queuelen %"TCPWNDSIZE_F" ... ", - (tcpwnd_size_t)pcb->snd_queuelen)); - LWIP_ASSERT("pcb->snd_queuelen >= pbuf_clen(next->p)", (pcb->snd_queuelen >= clen)); - - pcb->snd_queuelen = (u16_t)(pcb->snd_queuelen - clen); - recv_acked = (tcpwnd_size_t)(recv_acked + next->len); - tcp_seg_free(next); - - LWIP_DEBUGF(TCP_QLEN_DEBUG, ("%"TCPWNDSIZE_F" (after freeing %s)\n", - (tcpwnd_size_t)pcb->snd_queuelen, - dbg_list_name)); - if (pcb->snd_queuelen != 0) { - LWIP_ASSERT("tcp_receive: valid queue length", - seg_list != NULL || dbg_other_seg_list != NULL); - } - } - return seg_list; -} - -/** - * Called by tcp_process. Checks if the given segment is an ACK for outstanding - * data, and if so frees the memory of the buffered data. Next, it places the - * segment on any of the receive queues (pcb->recved or pcb->ooseq). If the segment - * is buffered, the pbuf is referenced by pbuf_ref so that it will not be freed until - * it has been removed from the buffer. - * - * If the incoming segment constitutes an ACK for a segment that was used for RTT - * estimation, the RTT is estimated here as well. - * - * Called from tcp_process(). - */ -static void -tcp_receive(struct tcp_pcb *pcb) -{ - s16_t m; - u32_t right_wnd_edge; - int found_dupack = 0; - - LWIP_ASSERT("tcp_receive: invalid pcb", pcb != NULL); - LWIP_ASSERT("tcp_receive: wrong state", pcb->state >= ESTABLISHED); - - if (flags & TCP_ACK) { - right_wnd_edge = pcb->snd_wnd + pcb->snd_wl2; - - /* Update window. */ - if (TCP_SEQ_LT(pcb->snd_wl1, seqno) || - (pcb->snd_wl1 == seqno && TCP_SEQ_LT(pcb->snd_wl2, ackno)) || - (pcb->snd_wl2 == ackno && (u32_t)SND_WND_SCALE(pcb, tcphdr->wnd) > pcb->snd_wnd)) { - pcb->snd_wnd = SND_WND_SCALE(pcb, tcphdr->wnd); - /* keep track of the biggest window announced by the remote host to calculate - the maximum segment size */ - if (pcb->snd_wnd_max < pcb->snd_wnd) { - pcb->snd_wnd_max = pcb->snd_wnd; - } - pcb->snd_wl1 = seqno; - pcb->snd_wl2 = ackno; - LWIP_DEBUGF(TCP_WND_DEBUG, ("tcp_receive: window update %"TCPWNDSIZE_F"\n", pcb->snd_wnd)); -#if TCP_WND_DEBUG - } else { - if (pcb->snd_wnd != (tcpwnd_size_t)SND_WND_SCALE(pcb, tcphdr->wnd)) { - LWIP_DEBUGF(TCP_WND_DEBUG, - ("tcp_receive: no window update lastack %"U32_F" ackno %" - U32_F" wl1 %"U32_F" seqno %"U32_F" wl2 %"U32_F"\n", - pcb->lastack, ackno, pcb->snd_wl1, seqno, pcb->snd_wl2)); - } -#endif /* TCP_WND_DEBUG */ - } - - /* (From Stevens TCP/IP Illustrated Vol II, p970.) Its only a - * duplicate ack if: - * 1) It doesn't ACK new data - * 2) length of received packet is zero (i.e. no payload) - * 3) the advertised window hasn't changed - * 4) There is outstanding unacknowledged data (retransmission timer running) - * 5) The ACK is == biggest ACK sequence number so far seen (snd_una) - * - * If it passes all five, should process as a dupack: - * a) dupacks < 3: do nothing - * b) dupacks == 3: fast retransmit - * c) dupacks > 3: increase cwnd - * - * If it only passes 1-3, should reset dupack counter (and add to - * stats, which we don't do in lwIP) - * - * If it only passes 1, should reset dupack counter - * - */ - - /* Clause 1 */ - if (TCP_SEQ_LEQ(ackno, pcb->lastack)) { - /* Clause 2 */ - if (tcplen == 0) { - /* Clause 3 */ - if (pcb->snd_wl2 + pcb->snd_wnd == right_wnd_edge) { - /* Clause 4 */ - if (pcb->rtime >= 0) { - /* Clause 5 */ - if (pcb->lastack == ackno) { - found_dupack = 1; - if ((u8_t)(pcb->dupacks + 1) > pcb->dupacks) { - ++pcb->dupacks; - } - if (pcb->dupacks > 3) { - /* Inflate the congestion window */ - TCP_WND_INC(pcb->cwnd, pcb->mss); - } - if (pcb->dupacks >= 3) { - /* Do fast retransmit (checked via TF_INFR, not via dupacks count) */ - tcp_rexmit_fast(pcb); - } - } - } - } - } - /* If Clause (1) or more is true, but not a duplicate ack, reset - * count of consecutive duplicate acks */ - if (!found_dupack) { - pcb->dupacks = 0; - } - } else if (TCP_SEQ_BETWEEN(ackno, pcb->lastack + 1, pcb->snd_nxt)) { - /* We come here when the ACK acknowledges new data. */ - tcpwnd_size_t acked; - - /* Reset the "IN Fast Retransmit" flag, since we are no longer - in fast retransmit. Also reset the congestion window to the - slow start threshold. */ - if (pcb->flags & TF_INFR) { - tcp_clear_flags(pcb, TF_INFR); - pcb->cwnd = pcb->ssthresh; - pcb->bytes_acked = 0; - } - - /* Reset the number of retransmissions. */ - pcb->nrtx = 0; - - /* Reset the retransmission time-out. */ - pcb->rto = (s16_t)((pcb->sa >> 3) + pcb->sv); - - /* Record how much data this ACK acks */ - acked = (tcpwnd_size_t)(ackno - pcb->lastack); - - /* Reset the fast retransmit variables. */ - pcb->dupacks = 0; - pcb->lastack = ackno; - - /* Update the congestion control variables (cwnd and - ssthresh). */ - if (pcb->state >= ESTABLISHED) { - if (pcb->cwnd < pcb->ssthresh) { - tcpwnd_size_t increase; - /* limit to 1 SMSS segment during period following RTO */ - u8_t num_seg = (pcb->flags & TF_RTO) ? 1 : 2; - /* RFC 3465, section 2.2 Slow Start */ - increase = LWIP_MIN(acked, (tcpwnd_size_t)(num_seg * pcb->mss)); - TCP_WND_INC(pcb->cwnd, increase); - LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_receive: slow start cwnd %"TCPWNDSIZE_F"\n", pcb->cwnd)); - } else { - /* RFC 3465, section 2.1 Congestion Avoidance */ - TCP_WND_INC(pcb->bytes_acked, acked); - if (pcb->bytes_acked >= pcb->cwnd) { - pcb->bytes_acked = (tcpwnd_size_t)(pcb->bytes_acked - pcb->cwnd); - TCP_WND_INC(pcb->cwnd, pcb->mss); - } - LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_receive: congestion avoidance cwnd %"TCPWNDSIZE_F"\n", pcb->cwnd)); - } - } - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: ACK for %"U32_F", unacked->seqno %"U32_F":%"U32_F"\n", - ackno, - pcb->unacked != NULL ? - lwip_ntohl(pcb->unacked->tcphdr->seqno) : 0, - pcb->unacked != NULL ? - lwip_ntohl(pcb->unacked->tcphdr->seqno) + TCP_TCPLEN(pcb->unacked) : 0)); - - /* Remove segment from the unacknowledged list if the incoming - ACK acknowledges them. */ - pcb->unacked = tcp_free_acked_segments(pcb, pcb->unacked, "unacked", pcb->unsent); - /* We go through the ->unsent list to see if any of the segments - on the list are acknowledged by the ACK. This may seem - strange since an "unsent" segment shouldn't be acked. The - rationale is that lwIP puts all outstanding segments on the - ->unsent list after a retransmission, so these segments may - in fact have been sent once. */ - pcb->unsent = tcp_free_acked_segments(pcb, pcb->unsent, "unsent", pcb->unacked); - - /* If there's nothing left to acknowledge, stop the retransmit - timer, otherwise reset it to start again */ - if (pcb->unacked == NULL) { - pcb->rtime = -1; - } else { - pcb->rtime = 0; - } - - pcb->polltmr = 0; - -#if TCP_OVERSIZE - if (pcb->unsent == NULL) { - pcb->unsent_oversize = 0; - } -#endif /* TCP_OVERSIZE */ - -#if LWIP_IPV6 && LWIP_ND6_TCP_REACHABILITY_HINTS - if (ip_current_is_v6()) { - /* Inform neighbor reachability of forward progress. */ - nd6_reachability_hint(ip6_current_src_addr()); - } -#endif /* LWIP_IPV6 && LWIP_ND6_TCP_REACHABILITY_HINTS*/ - - pcb->snd_buf = (tcpwnd_size_t)(pcb->snd_buf + recv_acked); - /* check if this ACK ends our retransmission of in-flight data */ - if (pcb->flags & TF_RTO) { - /* RTO is done if - 1) both queues are empty or - 2) unacked is empty and unsent head contains data not part of RTO or - 3) unacked head contains data not part of RTO */ - if (pcb->unacked == NULL) { - if ((pcb->unsent == NULL) || - (TCP_SEQ_LEQ(pcb->rto_end, lwip_ntohl(pcb->unsent->tcphdr->seqno)))) { - tcp_clear_flags(pcb, TF_RTO); - } - } else if (TCP_SEQ_LEQ(pcb->rto_end, lwip_ntohl(pcb->unacked->tcphdr->seqno))) { - tcp_clear_flags(pcb, TF_RTO); - } - } - /* End of ACK for new data processing. */ - } else { - /* Out of sequence ACK, didn't really ack anything */ - tcp_send_empty_ack(pcb); - } - - LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_receive: pcb->rttest %"U32_F" rtseq %"U32_F" ackno %"U32_F"\n", - pcb->rttest, pcb->rtseq, ackno)); - - /* RTT estimation calculations. This is done by checking if the - incoming segment acknowledges the segment we use to take a - round-trip time measurement. */ - if (pcb->rttest && TCP_SEQ_LT(pcb->rtseq, ackno)) { - /* diff between this shouldn't exceed 32K since this are tcp timer ticks - and a round-trip shouldn't be that long... */ - m = (s16_t)(tcp_ticks - pcb->rttest); - - LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_receive: experienced rtt %"U16_F" ticks (%"U16_F" msec).\n", - m, (u16_t)(m * TCP_SLOW_INTERVAL))); - - /* This is taken directly from VJs original code in his paper */ - m = (s16_t)(m - (pcb->sa >> 3)); - pcb->sa = (s16_t)(pcb->sa + m); - if (m < 0) { - m = (s16_t) - m; - } - m = (s16_t)(m - (pcb->sv >> 2)); - pcb->sv = (s16_t)(pcb->sv + m); - pcb->rto = (s16_t)((pcb->sa >> 3) + pcb->sv); - - LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_receive: RTO %"U16_F" (%"U16_F" milliseconds)\n", - pcb->rto, (u16_t)(pcb->rto * TCP_SLOW_INTERVAL))); - - pcb->rttest = 0; - } - } - - /* If the incoming segment contains data, we must process it - further unless the pcb already received a FIN. - (RFC 793, chapter 3.9, "SEGMENT ARRIVES" in states CLOSE-WAIT, CLOSING, - LAST-ACK and TIME-WAIT: "Ignore the segment text.") */ - if ((tcplen > 0) && (pcb->state < CLOSE_WAIT)) { - /* This code basically does three things: - - +) If the incoming segment contains data that is the next - in-sequence data, this data is passed to the application. This - might involve trimming the first edge of the data. The rcv_nxt - variable and the advertised window are adjusted. - - +) If the incoming segment has data that is above the next - sequence number expected (->rcv_nxt), the segment is placed on - the ->ooseq queue. This is done by finding the appropriate - place in the ->ooseq queue (which is ordered by sequence - number) and trim the segment in both ends if needed. An - immediate ACK is sent to indicate that we received an - out-of-sequence segment. - - +) Finally, we check if the first segment on the ->ooseq queue - now is in sequence (i.e., if rcv_nxt >= ooseq->seqno). If - rcv_nxt > ooseq->seqno, we must trim the first edge of the - segment on ->ooseq before we adjust rcv_nxt. The data in the - segments that are now on sequence are chained onto the - incoming segment so that we only need to call the application - once. - */ - - /* First, we check if we must trim the first edge. We have to do - this if the sequence number of the incoming segment is less - than rcv_nxt, and the sequence number plus the length of the - segment is larger than rcv_nxt. */ - /* if (TCP_SEQ_LT(seqno, pcb->rcv_nxt)) { - if (TCP_SEQ_LT(pcb->rcv_nxt, seqno + tcplen)) {*/ - if (TCP_SEQ_BETWEEN(pcb->rcv_nxt, seqno + 1, seqno + tcplen - 1)) { - /* Trimming the first edge is done by pushing the payload - pointer in the pbuf downwards. This is somewhat tricky since - we do not want to discard the full contents of the pbuf up to - the new starting point of the data since we have to keep the - TCP header which is present in the first pbuf in the chain. - - What is done is really quite a nasty hack: the first pbuf in - the pbuf chain is pointed to by inseg.p. Since we need to be - able to deallocate the whole pbuf, we cannot change this - inseg.p pointer to point to any of the later pbufs in the - chain. Instead, we point the ->payload pointer in the first - pbuf to data in one of the later pbufs. We also set the - inseg.data pointer to point to the right place. This way, the - ->p pointer will still point to the first pbuf, but the - ->p->payload pointer will point to data in another pbuf. - - After we are done with adjusting the pbuf pointers we must - adjust the ->data pointer in the seg and the segment - length.*/ - - struct pbuf *p = inseg.p; - u32_t off32 = pcb->rcv_nxt - seqno; - u16_t new_tot_len, off; - LWIP_ASSERT("inseg.p != NULL", inseg.p); - LWIP_ASSERT("insane offset!", (off32 < 0xffff)); - off = (u16_t)off32; - LWIP_ASSERT("pbuf too short!", (((s32_t)inseg.p->tot_len) >= off)); - inseg.len -= off; - new_tot_len = (u16_t)(inseg.p->tot_len - off); - while (p->len < off) { - off -= p->len; - /* all pbufs up to and including this one have len==0, so tot_len is equal */ - p->tot_len = new_tot_len; - p->len = 0; - p = p->next; - } - /* cannot fail... */ - pbuf_remove_header(p, off); - inseg.tcphdr->seqno = seqno = pcb->rcv_nxt; - } else { - if (TCP_SEQ_LT(seqno, pcb->rcv_nxt)) { - /* the whole segment is < rcv_nxt */ - /* must be a duplicate of a packet that has already been correctly handled */ - - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: duplicate seqno %"U32_F"\n", seqno)); - tcp_ack_now(pcb); - } - } - - /* The sequence number must be within the window (above rcv_nxt - and below rcv_nxt + rcv_wnd) in order to be further - processed. */ - if (TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, - pcb->rcv_nxt + pcb->rcv_wnd - 1)) { - if (pcb->rcv_nxt == seqno) { - /* The incoming segment is the next in sequence. We check if - we have to trim the end of the segment and update rcv_nxt - and pass the data to the application. */ - tcplen = TCP_TCPLEN(&inseg); - - if (tcplen > pcb->rcv_wnd) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, - ("tcp_receive: other end overran receive window" - "seqno %"U32_F" len %"U16_F" right edge %"U32_F"\n", - seqno, tcplen, pcb->rcv_nxt + pcb->rcv_wnd)); - if (TCPH_FLAGS(inseg.tcphdr) & TCP_FIN) { - /* Must remove the FIN from the header as we're trimming - * that byte of sequence-space from the packet */ - TCPH_FLAGS_SET(inseg.tcphdr, TCPH_FLAGS(inseg.tcphdr) & ~(unsigned int)TCP_FIN); - } - /* Adjust length of segment to fit in the window. */ - TCPWND_CHECK16(pcb->rcv_wnd); - inseg.len = (u16_t)pcb->rcv_wnd; - if (TCPH_FLAGS(inseg.tcphdr) & TCP_SYN) { - inseg.len -= 1; - } - pbuf_realloc(inseg.p, inseg.len); - tcplen = TCP_TCPLEN(&inseg); - LWIP_ASSERT("tcp_receive: segment not trimmed correctly to rcv_wnd\n", - (seqno + tcplen) == (pcb->rcv_nxt + pcb->rcv_wnd)); - } -#if TCP_QUEUE_OOSEQ - /* Received in-sequence data, adjust ooseq data if: - - FIN has been received or - - inseq overlaps with ooseq */ - if (pcb->ooseq != NULL) { - if (TCPH_FLAGS(inseg.tcphdr) & TCP_FIN) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, - ("tcp_receive: received in-order FIN, binning ooseq queue\n")); - /* Received in-order FIN means anything that was received - * out of order must now have been received in-order, so - * bin the ooseq queue */ - while (pcb->ooseq != NULL) { - struct tcp_seg *old_ooseq = pcb->ooseq; - pcb->ooseq = pcb->ooseq->next; - tcp_seg_free(old_ooseq); - } - } else { - struct tcp_seg *next = pcb->ooseq; - /* Remove all segments on ooseq that are covered by inseg already. - * FIN is copied from ooseq to inseg if present. */ - while (next && - TCP_SEQ_GEQ(seqno + tcplen, - next->tcphdr->seqno + next->len)) { - struct tcp_seg *tmp; - /* inseg cannot have FIN here (already processed above) */ - if ((TCPH_FLAGS(next->tcphdr) & TCP_FIN) != 0 && - (TCPH_FLAGS(inseg.tcphdr) & TCP_SYN) == 0) { - TCPH_SET_FLAG(inseg.tcphdr, TCP_FIN); - tcplen = TCP_TCPLEN(&inseg); - } - tmp = next; - next = next->next; - tcp_seg_free(tmp); - } - /* Now trim right side of inseg if it overlaps with the first - * segment on ooseq */ - if (next && - TCP_SEQ_GT(seqno + tcplen, - next->tcphdr->seqno)) { - /* inseg cannot have FIN here (already processed above) */ - inseg.len = (u16_t)(next->tcphdr->seqno - seqno); - if (TCPH_FLAGS(inseg.tcphdr) & TCP_SYN) { - inseg.len -= 1; - } - pbuf_realloc(inseg.p, inseg.len); - tcplen = TCP_TCPLEN(&inseg); - LWIP_ASSERT("tcp_receive: segment not trimmed correctly to ooseq queue\n", - (seqno + tcplen) == next->tcphdr->seqno); - } - pcb->ooseq = next; - } - } -#endif /* TCP_QUEUE_OOSEQ */ - - pcb->rcv_nxt = seqno + tcplen; - - /* Update the receiver's (our) window. */ - LWIP_ASSERT("tcp_receive: tcplen > rcv_wnd\n", pcb->rcv_wnd >= tcplen); - pcb->rcv_wnd -= tcplen; - - tcp_update_rcv_ann_wnd(pcb); - - /* If there is data in the segment, we make preparations to - pass this up to the application. The ->recv_data variable - is used for holding the pbuf that goes to the - application. The code for reassembling out-of-sequence data - chains its data on this pbuf as well. - - If the segment was a FIN, we set the TF_GOT_FIN flag that will - be used to indicate to the application that the remote side has - closed its end of the connection. */ - if (inseg.p->tot_len > 0) { - recv_data = inseg.p; - /* Since this pbuf now is the responsibility of the - application, we delete our reference to it so that we won't - (mistakingly) deallocate it. */ - inseg.p = NULL; - } - if (TCPH_FLAGS(inseg.tcphdr) & TCP_FIN) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: received FIN.\n")); - recv_flags |= TF_GOT_FIN; - } - -#if TCP_QUEUE_OOSEQ - /* We now check if we have segments on the ->ooseq queue that - are now in sequence. */ - while (pcb->ooseq != NULL && - pcb->ooseq->tcphdr->seqno == pcb->rcv_nxt) { - - struct tcp_seg *cseg = pcb->ooseq; - seqno = pcb->ooseq->tcphdr->seqno; - - pcb->rcv_nxt += TCP_TCPLEN(cseg); - LWIP_ASSERT("tcp_receive: ooseq tcplen > rcv_wnd\n", - pcb->rcv_wnd >= TCP_TCPLEN(cseg)); - pcb->rcv_wnd -= TCP_TCPLEN(cseg); - - tcp_update_rcv_ann_wnd(pcb); - - if (cseg->p->tot_len > 0) { - /* Chain this pbuf onto the pbuf that we will pass to - the application. */ - /* With window scaling, this can overflow recv_data->tot_len, but - that's not a problem since we explicitly fix that before passing - recv_data to the application. */ - if (recv_data) { - pbuf_cat(recv_data, cseg->p); - } else { - recv_data = cseg->p; - } - cseg->p = NULL; - } - if (TCPH_FLAGS(cseg->tcphdr) & TCP_FIN) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_receive: dequeued FIN.\n")); - recv_flags |= TF_GOT_FIN; - if (pcb->state == ESTABLISHED) { /* force passive close or we can move to active close */ - pcb->state = CLOSE_WAIT; - } - } - - pcb->ooseq = cseg->next; - tcp_seg_free(cseg); - } -#if LWIP_TCP_SACK_OUT - if (pcb->flags & TF_SACK) { - if (pcb->ooseq != NULL) { - /* Some segments may have been removed from ooseq, let's remove all SACKs that - describe anything before the new beginning of that list. */ - tcp_remove_sacks_lt(pcb, pcb->ooseq->tcphdr->seqno); - } else if (LWIP_TCP_SACK_VALID(pcb, 0)) { - /* ooseq has been cleared. Nothing to SACK */ - memset(pcb->rcv_sacks, 0, sizeof(pcb->rcv_sacks)); - } - } -#endif /* LWIP_TCP_SACK_OUT */ -#endif /* TCP_QUEUE_OOSEQ */ - - - /* Acknowledge the segment(s). */ - tcp_ack(pcb); - -#if LWIP_TCP_SACK_OUT - if (LWIP_TCP_SACK_VALID(pcb, 0)) { - /* Normally the ACK for the data received could be piggy-backed on a data packet, - but lwIP currently does not support including SACKs in data packets. So we force - it to respond with an empty ACK packet (only if there is at least one SACK to be sent). - NOTE: tcp_send_empty_ack() on success clears the ACK flags (set by tcp_ack()) */ - tcp_send_empty_ack(pcb); - } -#endif /* LWIP_TCP_SACK_OUT */ - -#if LWIP_IPV6 && LWIP_ND6_TCP_REACHABILITY_HINTS - if (ip_current_is_v6()) { - /* Inform neighbor reachability of forward progress. */ - nd6_reachability_hint(ip6_current_src_addr()); - } -#endif /* LWIP_IPV6 && LWIP_ND6_TCP_REACHABILITY_HINTS*/ - - } else { - /* We get here if the incoming segment is out-of-sequence. */ - -#if TCP_QUEUE_OOSEQ - /* We queue the segment on the ->ooseq queue. */ - if (pcb->ooseq == NULL) { - pcb->ooseq = tcp_seg_copy(&inseg); -#if LWIP_TCP_SACK_OUT - if (pcb->flags & TF_SACK) { - /* All the SACKs should be invalid, so we can simply store the most recent one: */ - pcb->rcv_sacks[0].left = seqno; - pcb->rcv_sacks[0].right = seqno + inseg.len; - } -#endif /* LWIP_TCP_SACK_OUT */ - } else { - /* If the queue is not empty, we walk through the queue and - try to find a place where the sequence number of the - incoming segment is between the sequence numbers of the - previous and the next segment on the ->ooseq queue. That is - the place where we put the incoming segment. If needed, we - trim the second edges of the previous and the incoming - segment so that it will fit into the sequence. - - If the incoming segment has the same sequence number as a - segment on the ->ooseq queue, we discard the segment that - contains less data. */ - -#if LWIP_TCP_SACK_OUT - /* This is the left edge of the lowest possible SACK range. - It may start before the newly received segment (possibly adjusted below). */ - u32_t sackbeg = TCP_SEQ_LT(seqno, pcb->ooseq->tcphdr->seqno) ? seqno : pcb->ooseq->tcphdr->seqno; -#endif /* LWIP_TCP_SACK_OUT */ - struct tcp_seg *next, *prev = NULL; - for (next = pcb->ooseq; next != NULL; next = next->next) { - if (seqno == next->tcphdr->seqno) { - /* The sequence number of the incoming segment is the - same as the sequence number of the segment on - ->ooseq. We check the lengths to see which one to - discard. */ - if (inseg.len > next->len) { - /* The incoming segment is larger than the old - segment. We replace some segments with the new - one. */ - struct tcp_seg *cseg = tcp_seg_copy(&inseg); - if (cseg != NULL) { - if (prev != NULL) { - prev->next = cseg; - } else { - pcb->ooseq = cseg; - } - tcp_oos_insert_segment(cseg, next); - } - break; - } else { - /* Either the lengths are the same or the incoming - segment was smaller than the old one; in either - case, we ditch the incoming segment. */ - break; - } - } else { - if (prev == NULL) { - if (TCP_SEQ_LT(seqno, next->tcphdr->seqno)) { - /* The sequence number of the incoming segment is lower - than the sequence number of the first segment on the - queue. We put the incoming segment first on the - queue. */ - struct tcp_seg *cseg = tcp_seg_copy(&inseg); - if (cseg != NULL) { - pcb->ooseq = cseg; - tcp_oos_insert_segment(cseg, next); - } - break; - } - } else { - /*if (TCP_SEQ_LT(prev->tcphdr->seqno, seqno) && - TCP_SEQ_LT(seqno, next->tcphdr->seqno)) {*/ - if (TCP_SEQ_BETWEEN(seqno, prev->tcphdr->seqno + 1, next->tcphdr->seqno - 1)) { - /* The sequence number of the incoming segment is in - between the sequence numbers of the previous and - the next segment on ->ooseq. We trim trim the previous - segment, delete next segments that included in received segment - and trim received, if needed. */ - struct tcp_seg *cseg = tcp_seg_copy(&inseg); - if (cseg != NULL) { - if (TCP_SEQ_GT(prev->tcphdr->seqno + prev->len, seqno)) { - /* We need to trim the prev segment. */ - prev->len = (u16_t)(seqno - prev->tcphdr->seqno); - pbuf_realloc(prev->p, prev->len); - } - prev->next = cseg; - tcp_oos_insert_segment(cseg, next); - } - break; - } - } - -#if LWIP_TCP_SACK_OUT - /* The new segment goes after the 'next' one. If there is a "hole" in sequence numbers - between 'prev' and the beginning of 'next', we want to move sackbeg. */ - if (prev != NULL && prev->tcphdr->seqno + prev->len != next->tcphdr->seqno) { - sackbeg = next->tcphdr->seqno; - } -#endif /* LWIP_TCP_SACK_OUT */ - - /* We don't use 'prev' below, so let's set it to current 'next'. - This way even if we break the loop below, 'prev' will be pointing - at the segment right in front of the newly added one. */ - prev = next; - - /* If the "next" segment is the last segment on the - ooseq queue, we add the incoming segment to the end - of the list. */ - if (next->next == NULL && - TCP_SEQ_GT(seqno, next->tcphdr->seqno)) { - if (TCPH_FLAGS(next->tcphdr) & TCP_FIN) { - /* segment "next" already contains all data */ - break; - } - next->next = tcp_seg_copy(&inseg); - if (next->next != NULL) { - if (TCP_SEQ_GT(next->tcphdr->seqno + next->len, seqno)) { - /* We need to trim the last segment. */ - next->len = (u16_t)(seqno - next->tcphdr->seqno); - pbuf_realloc(next->p, next->len); - } - /* check if the remote side overruns our receive window */ - if (TCP_SEQ_GT((u32_t)tcplen + seqno, pcb->rcv_nxt + (u32_t)pcb->rcv_wnd)) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, - ("tcp_receive: other end overran receive window" - "seqno %"U32_F" len %"U16_F" right edge %"U32_F"\n", - seqno, tcplen, pcb->rcv_nxt + pcb->rcv_wnd)); - if (TCPH_FLAGS(next->next->tcphdr) & TCP_FIN) { - /* Must remove the FIN from the header as we're trimming - * that byte of sequence-space from the packet */ - TCPH_FLAGS_SET(next->next->tcphdr, TCPH_FLAGS(next->next->tcphdr) & ~TCP_FIN); - } - /* Adjust length of segment to fit in the window. */ - next->next->len = (u16_t)(pcb->rcv_nxt + pcb->rcv_wnd - seqno); - pbuf_realloc(next->next->p, next->next->len); - tcplen = TCP_TCPLEN(next->next); - LWIP_ASSERT("tcp_receive: segment not trimmed correctly to rcv_wnd\n", - (seqno + tcplen) == (pcb->rcv_nxt + pcb->rcv_wnd)); - } - } - break; - } - } - } - -#if LWIP_TCP_SACK_OUT - if (pcb->flags & TF_SACK) { - if (prev == NULL) { - /* The new segment is at the beginning. sackbeg should already be set properly. - We need to find the right edge. */ - next = pcb->ooseq; - } else if (prev->next != NULL) { - /* The new segment was added after 'prev'. If there is a "hole" between 'prev' and 'prev->next', - we need to move sackbeg. After that we should find the right edge. */ - next = prev->next; - if (prev->tcphdr->seqno + prev->len != next->tcphdr->seqno) { - sackbeg = next->tcphdr->seqno; - } - } else { - next = NULL; - } - if (next != NULL) { - u32_t sackend = next->tcphdr->seqno; - for ( ; (next != NULL) && (sackend == next->tcphdr->seqno); next = next->next) { - sackend += next->len; - } - tcp_add_sack(pcb, sackbeg, sackend); - } - } -#endif /* LWIP_TCP_SACK_OUT */ - } -#if defined(TCP_OOSEQ_BYTES_LIMIT) || defined(TCP_OOSEQ_PBUFS_LIMIT) - { - /* Check that the data on ooseq doesn't exceed one of the limits - and throw away everything above that limit. */ -#ifdef TCP_OOSEQ_BYTES_LIMIT - const u32_t ooseq_max_blen = TCP_OOSEQ_BYTES_LIMIT(pcb); - u32_t ooseq_blen = 0; -#endif -#ifdef TCP_OOSEQ_PBUFS_LIMIT - const u16_t ooseq_max_qlen = TCP_OOSEQ_PBUFS_LIMIT(pcb); - u16_t ooseq_qlen = 0; -#endif - struct tcp_seg *next, *prev = NULL; - for (next = pcb->ooseq; next != NULL; prev = next, next = next->next) { - struct pbuf *p = next->p; - int stop_here = 0; -#ifdef TCP_OOSEQ_BYTES_LIMIT - ooseq_blen += p->tot_len; - if (ooseq_blen > ooseq_max_blen) { - stop_here = 1; - } -#endif -#ifdef TCP_OOSEQ_PBUFS_LIMIT - ooseq_qlen += pbuf_clen(p); - if (ooseq_qlen > ooseq_max_qlen) { - stop_here = 1; - } -#endif - if (stop_here) { -#if LWIP_TCP_SACK_OUT - if (pcb->flags & TF_SACK) { - /* Let's remove all SACKs from next's seqno up. */ - tcp_remove_sacks_gt(pcb, next->tcphdr->seqno); - } -#endif /* LWIP_TCP_SACK_OUT */ - /* too much ooseq data, dump this and everything after it */ - tcp_segs_free(next); - if (prev == NULL) { - /* first ooseq segment is too much, dump the whole queue */ - pcb->ooseq = NULL; - } else { - /* just dump 'next' and everything after it */ - prev->next = NULL; - } - break; - } - } - } -#endif /* TCP_OOSEQ_BYTES_LIMIT || TCP_OOSEQ_PBUFS_LIMIT */ -#endif /* TCP_QUEUE_OOSEQ */ - - /* We send the ACK packet after we've (potentially) dealt with SACKs, - so they can be included in the acknowledgment. */ - tcp_send_empty_ack(pcb); - } - } else { - /* The incoming segment is not within the window. */ - tcp_send_empty_ack(pcb); - } - } else { - /* Segments with length 0 is taken care of here. Segments that - fall out of the window are ACKed. */ - if (!TCP_SEQ_BETWEEN(seqno, pcb->rcv_nxt, pcb->rcv_nxt + pcb->rcv_wnd - 1)) { - tcp_ack_now(pcb); - } - } -} - -static u8_t -tcp_get_next_optbyte(void) -{ - u16_t optidx = tcp_optidx++; - if ((tcphdr_opt2 == NULL) || (optidx < tcphdr_opt1len)) { - u8_t *opts = (u8_t *)tcphdr + TCP_HLEN; - return opts[optidx]; - } else { - u8_t idx = (u8_t)(optidx - tcphdr_opt1len); - return tcphdr_opt2[idx]; - } -} - -/** - * Parses the options contained in the incoming segment. - * - * Called from tcp_listen_input() and tcp_process(). - * Currently, only the MSS option is supported! - * - * @param pcb the tcp_pcb for which a segment arrived - */ -static void -tcp_parseopt(struct tcp_pcb *pcb) -{ - u8_t data; - u16_t mss; -#if LWIP_TCP_TIMESTAMPS - u32_t tsval; -#endif - - LWIP_ASSERT("tcp_parseopt: invalid pcb", pcb != NULL); - - /* Parse the TCP MSS option, if present. */ - if (tcphdr_optlen != 0) { - for (tcp_optidx = 0; tcp_optidx < tcphdr_optlen; ) { - u8_t opt = tcp_get_next_optbyte(); - switch (opt) { - case LWIP_TCP_OPT_EOL: - /* End of options. */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: EOL\n")); - return; - case LWIP_TCP_OPT_NOP: - /* NOP option. */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: NOP\n")); - break; - case LWIP_TCP_OPT_MSS: - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: MSS\n")); - if (tcp_get_next_optbyte() != LWIP_TCP_OPT_LEN_MSS || (tcp_optidx - 2 + LWIP_TCP_OPT_LEN_MSS) > tcphdr_optlen) { - /* Bad length */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); - return; - } - /* An MSS option with the right option length. */ - mss = (u16_t)(tcp_get_next_optbyte() << 8); - mss |= tcp_get_next_optbyte(); - /* Limit the mss to the configured TCP_MSS and prevent division by zero */ - pcb->mss = ((mss > TCP_MSS) || (mss == 0)) ? TCP_MSS : mss; - break; -#if LWIP_WND_SCALE - case LWIP_TCP_OPT_WS: - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: WND_SCALE\n")); - if (tcp_get_next_optbyte() != LWIP_TCP_OPT_LEN_WS || (tcp_optidx - 2 + LWIP_TCP_OPT_LEN_WS) > tcphdr_optlen) { - /* Bad length */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); - return; - } - /* An WND_SCALE option with the right option length. */ - data = tcp_get_next_optbyte(); - /* If syn was received with wnd scale option, - activate wnd scale opt, but only if this is not a retransmission */ - if ((flags & TCP_SYN) && !(pcb->flags & TF_WND_SCALE)) { - pcb->snd_scale = data; - if (pcb->snd_scale > 14U) { - pcb->snd_scale = 14U; - } - pcb->rcv_scale = TCP_RCV_SCALE; - tcp_set_flags(pcb, TF_WND_SCALE); - /* window scaling is enabled, we can use the full receive window */ - LWIP_ASSERT("window not at default value", pcb->rcv_wnd == TCPWND_MIN16(TCP_WND)); - LWIP_ASSERT("window not at default value", pcb->rcv_ann_wnd == TCPWND_MIN16(TCP_WND)); - pcb->rcv_wnd = pcb->rcv_ann_wnd = TCP_WND; - } - break; -#endif /* LWIP_WND_SCALE */ -#if LWIP_TCP_TIMESTAMPS - case LWIP_TCP_OPT_TS: - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: TS\n")); - if (tcp_get_next_optbyte() != LWIP_TCP_OPT_LEN_TS || (tcp_optidx - 2 + LWIP_TCP_OPT_LEN_TS) > tcphdr_optlen) { - /* Bad length */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); - return; - } - /* TCP timestamp option with valid length */ - tsval = tcp_get_next_optbyte(); - tsval |= (tcp_get_next_optbyte() << 8); - tsval |= (tcp_get_next_optbyte() << 16); - tsval |= (tcp_get_next_optbyte() << 24); - if (flags & TCP_SYN) { - pcb->ts_recent = lwip_ntohl(tsval); - /* Enable sending timestamps in every segment now that we know - the remote host supports it. */ - tcp_set_flags(pcb, TF_TIMESTAMP); - } else if (TCP_SEQ_BETWEEN(pcb->ts_lastacksent, seqno, seqno + tcplen)) { - pcb->ts_recent = lwip_ntohl(tsval); - } - /* Advance to next option (6 bytes already read) */ - tcp_optidx += LWIP_TCP_OPT_LEN_TS - 6; - break; -#endif /* LWIP_TCP_TIMESTAMPS */ -#if LWIP_TCP_SACK_OUT - case LWIP_TCP_OPT_SACK_PERM: - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: SACK_PERM\n")); - if (tcp_get_next_optbyte() != LWIP_TCP_OPT_LEN_SACK_PERM || (tcp_optidx - 2 + LWIP_TCP_OPT_LEN_SACK_PERM) > tcphdr_optlen) { - /* Bad length */ - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); - return; - } - /* TCP SACK_PERM option with valid length */ - if (flags & TCP_SYN) { - /* We only set it if we receive it in a SYN (or SYN+ACK) packet */ - tcp_set_flags(pcb, TF_SACK); - } - break; -#endif /* LWIP_TCP_SACK_OUT */ - default: - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: other\n")); - data = tcp_get_next_optbyte(); - if (data < 2) { - LWIP_DEBUGF(TCP_INPUT_DEBUG, ("tcp_parseopt: bad length\n")); - /* If the length field is zero, the options are malformed - and we don't process them further. */ - return; - } - /* All other options have a length field, so that we easily - can skip past them. */ - tcp_optidx += data - 2; - } - } - } -} - -void -tcp_trigger_input_pcb_close(void) -{ - recv_flags |= TF_CLOSED; -} - -#if LWIP_TCP_SACK_OUT -/** - * Called by tcp_receive() to add new SACK entry. - * - * The new SACK entry will be placed at the beginning of rcv_sacks[], as the newest one. - * Existing SACK entries will be "pushed back", to preserve their order. - * This is the behavior described in RFC 2018, section 4. - * - * @param pcb the tcp_pcb for which a segment arrived - * @param left the left side of the SACK (the first sequence number) - * @param right the right side of the SACK (the first sequence number past this SACK) - */ -static void -tcp_add_sack(struct tcp_pcb *pcb, u32_t left, u32_t right) -{ - u8_t i; - u8_t unused_idx; - - if ((pcb->flags & TF_SACK) == 0 || !TCP_SEQ_LT(left, right)) { - return; - } - - /* First, let's remove all SACKs that are no longer needed (because they overlap with the newest one), - while moving all other SACKs forward. - We run this loop for all entries, until we find the first invalid one. - There is no point checking after that. */ - for (i = unused_idx = 0; (i < LWIP_TCP_MAX_SACK_NUM) && LWIP_TCP_SACK_VALID(pcb, i); ++i) { - /* We only want to use SACK at [i] if it doesn't overlap with left:right range. - It does not overlap if its right side is before the newly added SACK, - or if its left side is after the newly added SACK. - NOTE: The equality should not really happen, but it doesn't hurt. */ - if (TCP_SEQ_LEQ(pcb->rcv_sacks[i].right, left) || TCP_SEQ_LEQ(right, pcb->rcv_sacks[i].left)) { - if (unused_idx != i) { - /* We don't need to copy if it's already in the right spot */ - pcb->rcv_sacks[unused_idx] = pcb->rcv_sacks[i]; - } - ++unused_idx; - } - } - - /* Now 'unused_idx' is the index of the first invalid SACK entry, - anywhere between 0 (no valid entries) and LWIP_TCP_MAX_SACK_NUM (all entries are valid). - We want to clear this and all following SACKs. - However, we will be adding another one in the front (and shifting everything else back). - So let's just iterate from the back, and set each entry to the one to the left if it's valid, - or to 0 if it is not. */ - for (i = LWIP_TCP_MAX_SACK_NUM - 1; i > 0; --i) { - /* [i] is the index we are setting, and the value should be at index [i-1], - or 0 if that index is unused (>= unused_idx). */ - if (i - 1 >= unused_idx) { - /* [i-1] is unused. Let's clear [i]. */ - pcb->rcv_sacks[i].left = pcb->rcv_sacks[i].right = 0; - } else { - pcb->rcv_sacks[i] = pcb->rcv_sacks[i - 1]; - } - } - - /* And now we can store the newest SACK */ - pcb->rcv_sacks[0].left = left; - pcb->rcv_sacks[0].right = right; -} - -/** - * Called to remove a range of SACKs. - * - * SACK entries will be removed or adjusted to not acknowledge any sequence - * numbers that are less than 'seq' passed. It not only invalidates entries, - * but also moves all entries that are still valid to the beginning. - * - * @param pcb the tcp_pcb to modify - * @param seq the lowest sequence number to keep in SACK entries - */ -static void -tcp_remove_sacks_lt(struct tcp_pcb *pcb, u32_t seq) -{ - u8_t i; - u8_t unused_idx; - - /* We run this loop for all entries, until we find the first invalid one. - There is no point checking after that. */ - for (i = unused_idx = 0; (i < LWIP_TCP_MAX_SACK_NUM) && LWIP_TCP_SACK_VALID(pcb, i); ++i) { - /* We only want to use SACK at index [i] if its right side is > 'seq'. */ - if (TCP_SEQ_GT(pcb->rcv_sacks[i].right, seq)) { - if (unused_idx != i) { - /* We only copy it if it's not in the right spot already. */ - pcb->rcv_sacks[unused_idx] = pcb->rcv_sacks[i]; - } - /* NOTE: It is possible that its left side is < 'seq', in which case we should adjust it. */ - if (TCP_SEQ_LT(pcb->rcv_sacks[unused_idx].left, seq)) { - pcb->rcv_sacks[unused_idx].left = seq; - } - ++unused_idx; - } - } - - /* We also need to invalidate everything from 'unused_idx' till the end */ - for (i = unused_idx; i < LWIP_TCP_MAX_SACK_NUM; ++i) { - pcb->rcv_sacks[i].left = pcb->rcv_sacks[i].right = 0; - } -} - -#if defined(TCP_OOSEQ_BYTES_LIMIT) || defined(TCP_OOSEQ_PBUFS_LIMIT) -/** - * Called to remove a range of SACKs. - * - * SACK entries will be removed or adjusted to not acknowledge any sequence - * numbers that are greater than (or equal to) 'seq' passed. It not only invalidates entries, - * but also moves all entries that are still valid to the beginning. - * - * @param pcb the tcp_pcb to modify - * @param seq the highest sequence number to keep in SACK entries - */ -static void -tcp_remove_sacks_gt(struct tcp_pcb *pcb, u32_t seq) -{ - u8_t i; - u8_t unused_idx; - - /* We run this loop for all entries, until we find the first invalid one. - There is no point checking after that. */ - for (i = unused_idx = 0; (i < LWIP_TCP_MAX_SACK_NUM) && LWIP_TCP_SACK_VALID(pcb, i); ++i) { - /* We only want to use SACK at index [i] if its left side is < 'seq'. */ - if (TCP_SEQ_LT(pcb->rcv_sacks[i].left, seq)) { - if (unused_idx != i) { - /* We only copy it if it's not in the right spot already. */ - pcb->rcv_sacks[unused_idx] = pcb->rcv_sacks[i]; - } - /* NOTE: It is possible that its right side is > 'seq', in which case we should adjust it. */ - if (TCP_SEQ_GT(pcb->rcv_sacks[unused_idx].right, seq)) { - pcb->rcv_sacks[unused_idx].right = seq; - } - ++unused_idx; - } - } - - /* We also need to invalidate everything from 'unused_idx' till the end */ - for (i = unused_idx; i < LWIP_TCP_MAX_SACK_NUM; ++i) { - pcb->rcv_sacks[i].left = pcb->rcv_sacks[i].right = 0; - } -} -#endif /* TCP_OOSEQ_BYTES_LIMIT || TCP_OOSEQ_PBUFS_LIMIT */ - -#endif /* LWIP_TCP_SACK_OUT */ - -#endif /* LWIP_TCP */ diff --git a/core/c/core/tcp_out.c b/core/c/core/tcp_out.c deleted file mode 100755 index 375e18d..0000000 --- a/core/c/core/tcp_out.c +++ /dev/null @@ -1,2190 +0,0 @@ -/** - * @file - * Transmission Control Protocol, outgoing traffic - * - * The output functions of TCP. - * - * There are two distinct ways for TCP segments to get sent: - * - queued data: these are segments transferring data or segments containing - * SYN or FIN (which both count as one sequence number). They are created as - * struct @ref pbuf together with a struct tcp_seg and enqueue to the - * unsent list of the pcb. They are sent by tcp_output: - * - @ref tcp_write : creates data segments - * - @ref tcp_split_unsent_seg : splits a data segment - * - @ref tcp_enqueue_flags : creates SYN-only or FIN-only segments - * - @ref tcp_output / tcp_output_segment : finalize the tcp header - * (e.g. sequence numbers, options, checksum) and output to IP - * - the various tcp_rexmit functions shuffle around segments between the - * unsent an unacked lists to retransmit them - * - tcp_create_segment and tcp_pbuf_prealloc allocate pbuf and - * segment for these functions - * - direct send: these segments don't contain data but control the connection - * behaviour. They are created as pbuf only and sent directly without - * enqueueing them: - * - @ref tcp_send_empty_ack sends an ACK-only segment - * - @ref tcp_rst sends a RST segment - * - @ref tcp_keepalive sends a keepalive segment - * - @ref tcp_zero_window_probe sends a window probe segment - * - tcp_output_alloc_header allocates a header-only pbuf for these functions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#include "lwip/opt.h" - -#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/priv/tcp_priv.h" -#include "lwip/def.h" -#include "lwip/mem.h" -#include "lwip/memp.h" -#include "lwip/ip_addr.h" -#include "lwip/netif.h" -#include "lwip/inet_chksum.h" -#include "lwip/stats.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#if LWIP_TCP_TIMESTAMPS -#include "lwip/sys.h" -#endif - -#include - -#ifdef LWIP_HOOK_FILENAME -#include LWIP_HOOK_FILENAME -#endif - -/* Allow to add custom TCP header options by defining this hook */ -#ifdef LWIP_HOOK_TCP_OUT_TCPOPT_LENGTH -#define LWIP_TCP_OPT_LENGTH_SEGMENT(flags, pcb) LWIP_HOOK_TCP_OUT_TCPOPT_LENGTH(pcb, LWIP_TCP_OPT_LENGTH(flags)) -#else -#define LWIP_TCP_OPT_LENGTH_SEGMENT(flags, pcb) LWIP_TCP_OPT_LENGTH(flags) -#endif - -/* Define some copy-macros for checksum-on-copy so that the code looks - nicer by preventing too many ifdef's. */ -#if TCP_CHECKSUM_ON_COPY -#define TCP_DATA_COPY(dst, src, len, seg) do { \ - tcp_seg_add_chksum(LWIP_CHKSUM_COPY(dst, src, len), \ - len, &seg->chksum, &seg->chksum_swapped); \ - seg->flags |= TF_SEG_DATA_CHECKSUMMED; } while(0) -#define TCP_DATA_COPY2(dst, src, len, chksum, chksum_swapped) \ - tcp_seg_add_chksum(LWIP_CHKSUM_COPY(dst, src, len), len, chksum, chksum_swapped); -#else /* TCP_CHECKSUM_ON_COPY*/ -#define TCP_DATA_COPY(dst, src, len, seg) MEMCPY(dst, src, len) -#define TCP_DATA_COPY2(dst, src, len, chksum, chksum_swapped) MEMCPY(dst, src, len) -#endif /* TCP_CHECKSUM_ON_COPY*/ - -/** Define this to 1 for an extra check that the output checksum is valid - * (usefule when the checksum is generated by the application, not the stack) */ -#ifndef TCP_CHECKSUM_ON_COPY_SANITY_CHECK -#define TCP_CHECKSUM_ON_COPY_SANITY_CHECK 0 -#endif -/* Allow to override the failure of sanity check from warning to e.g. hard failure */ -#if TCP_CHECKSUM_ON_COPY_SANITY_CHECK -#ifndef TCP_CHECKSUM_ON_COPY_SANITY_CHECK_FAIL -#define TCP_CHECKSUM_ON_COPY_SANITY_CHECK_FAIL(msg) LWIP_DEBUGF(TCP_DEBUG | LWIP_DBG_LEVEL_WARNING, msg) -#endif -#endif - -#if TCP_OVERSIZE -/** The size of segment pbufs created when TCP_OVERSIZE is enabled */ -#ifndef TCP_OVERSIZE_CALC_LENGTH -#define TCP_OVERSIZE_CALC_LENGTH(length) ((length) + TCP_OVERSIZE) -#endif -#endif - -/* Forward declarations.*/ -static err_t tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb, struct netif *netif); - -/* tcp_route: common code that returns a fixed bound netif or calls ip_route */ -static struct netif * -tcp_route(const struct tcp_pcb *pcb, const ip_addr_t *src, const ip_addr_t *dst) -{ - LWIP_UNUSED_ARG(src); /* in case IPv4-only and source-based routing is disabled */ - - if ((pcb != NULL) && (pcb->netif_idx != NETIF_NO_INDEX)) { - return netif_get_by_index(pcb->netif_idx); - } else { - return ip_route(src, dst); - } -} - -/** - * Create a TCP segment with prefilled header. - * - * Called by @ref tcp_write, @ref tcp_enqueue_flags and @ref tcp_split_unsent_seg - * - * @param pcb Protocol control block for the TCP connection. - * @param p pbuf that is used to hold the TCP header. - * @param hdrflags TCP flags for header. - * @param seqno TCP sequence number of this packet - * @param optflags options to include in TCP header - * @return a new tcp_seg pointing to p, or NULL. - * The TCP header is filled in except ackno and wnd. - * p is freed on failure. - */ -static struct tcp_seg * -tcp_create_segment(const struct tcp_pcb *pcb, struct pbuf *p, u8_t hdrflags, u32_t seqno, u8_t optflags) -{ - struct tcp_seg *seg; - u8_t optlen; - - LWIP_ASSERT("tcp_create_segment: invalid pcb", pcb != NULL); - LWIP_ASSERT("tcp_create_segment: invalid pbuf", p != NULL); - - optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(optflags, pcb); - - if ((seg = (struct tcp_seg *)memp_malloc(MEMP_TCP_SEG)) == NULL) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_create_segment: no memory.\n")); - pbuf_free(p); - return NULL; - } - seg->flags = optflags; - seg->next = NULL; - seg->p = p; - LWIP_ASSERT("p->tot_len >= optlen", p->tot_len >= optlen); - seg->len = p->tot_len - optlen; -#if TCP_OVERSIZE_DBGCHECK - seg->oversize_left = 0; -#endif /* TCP_OVERSIZE_DBGCHECK */ -#if TCP_CHECKSUM_ON_COPY - seg->chksum = 0; - seg->chksum_swapped = 0; - /* check optflags */ - LWIP_ASSERT("invalid optflags passed: TF_SEG_DATA_CHECKSUMMED", - (optflags & TF_SEG_DATA_CHECKSUMMED) == 0); -#endif /* TCP_CHECKSUM_ON_COPY */ - - /* build TCP header */ - if (pbuf_add_header(p, TCP_HLEN)) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_create_segment: no room for TCP header in pbuf.\n")); - TCP_STATS_INC(tcp.err); - tcp_seg_free(seg); - return NULL; - } - seg->tcphdr = (struct tcp_hdr *)seg->p->payload; - seg->tcphdr->src = lwip_htons(pcb->local_port); - seg->tcphdr->dest = lwip_htons(pcb->remote_port); - seg->tcphdr->seqno = lwip_htonl(seqno); - /* ackno is set in tcp_output */ - TCPH_HDRLEN_FLAGS_SET(seg->tcphdr, (5 + optlen / 4), hdrflags); - /* wnd and chksum are set in tcp_output */ - seg->tcphdr->urgp = 0; - return seg; -} - -/** - * Allocate a PBUF_RAM pbuf, perhaps with extra space at the end. - * - * This function is like pbuf_alloc(layer, length, PBUF_RAM) except - * there may be extra bytes available at the end. - * - * Called by @ref tcp_write - * - * @param layer flag to define header size. - * @param length size of the pbuf's payload. - * @param max_length maximum usable size of payload+oversize. - * @param oversize pointer to a u16_t that will receive the number of usable tail bytes. - * @param pcb The TCP connection that will enqueue the pbuf. - * @param apiflags API flags given to tcp_write. - * @param first_seg true when this pbuf will be used in the first enqueued segment. - */ -#if TCP_OVERSIZE -static struct pbuf * -tcp_pbuf_prealloc(pbuf_layer layer, u16_t length, u16_t max_length, - u16_t *oversize, const struct tcp_pcb *pcb, u8_t apiflags, - u8_t first_seg) -{ - struct pbuf *p; - u16_t alloc = length; - - LWIP_ASSERT("tcp_pbuf_prealloc: invalid oversize", oversize != NULL); - LWIP_ASSERT("tcp_pbuf_prealloc: invalid pcb", pcb != NULL); - -#if LWIP_NETIF_TX_SINGLE_PBUF - LWIP_UNUSED_ARG(max_length); - LWIP_UNUSED_ARG(pcb); - LWIP_UNUSED_ARG(apiflags); - LWIP_UNUSED_ARG(first_seg); - alloc = max_length; -#else /* LWIP_NETIF_TX_SINGLE_PBUF */ - if (length < max_length) { - /* Should we allocate an oversized pbuf, or just the minimum - * length required? If tcp_write is going to be called again - * before this segment is transmitted, we want the oversized - * buffer. If the segment will be transmitted immediately, we can - * save memory by allocating only length. We use a simple - * heuristic based on the following information: - * - * Did the user set TCP_WRITE_FLAG_MORE? - * - * Will the Nagle algorithm defer transmission of this segment? - */ - if ((apiflags & TCP_WRITE_FLAG_MORE) || - (!(pcb->flags & TF_NODELAY) && - (!first_seg || - pcb->unsent != NULL || - pcb->unacked != NULL))) { - alloc = LWIP_MIN(max_length, LWIP_MEM_ALIGN_SIZE(TCP_OVERSIZE_CALC_LENGTH(length))); - } - } -#endif /* LWIP_NETIF_TX_SINGLE_PBUF */ - p = pbuf_alloc(layer, alloc, PBUF_RAM); - if (p == NULL) { - return NULL; - } - LWIP_ASSERT("need unchained pbuf", p->next == NULL); - *oversize = p->len - length; - /* trim p->len to the currently used size */ - p->len = p->tot_len = length; - return p; -} -#else /* TCP_OVERSIZE */ -#define tcp_pbuf_prealloc(layer, length, mx, os, pcb, api, fst) pbuf_alloc((layer), (length), PBUF_RAM) -#endif /* TCP_OVERSIZE */ - -#if TCP_CHECKSUM_ON_COPY -/** Add a checksum of newly added data to the segment. - * - * Called by tcp_write and tcp_split_unsent_seg. - */ -static void -tcp_seg_add_chksum(u16_t chksum, u16_t len, u16_t *seg_chksum, - u8_t *seg_chksum_swapped) -{ - u32_t helper; - /* add chksum to old chksum and fold to u16_t */ - helper = chksum + *seg_chksum; - chksum = FOLD_U32T(helper); - if ((len & 1) != 0) { - *seg_chksum_swapped = 1 - *seg_chksum_swapped; - chksum = SWAP_BYTES_IN_WORD(chksum); - } - *seg_chksum = chksum; -} -#endif /* TCP_CHECKSUM_ON_COPY */ - -/** Checks if tcp_write is allowed or not (checks state, snd_buf and snd_queuelen). - * - * @param pcb the tcp pcb to check for - * @param len length of data to send (checked agains snd_buf) - * @return ERR_OK if tcp_write is allowed to proceed, another err_t otherwise - */ -static err_t -tcp_write_checks(struct tcp_pcb *pcb, u16_t len) -{ - LWIP_ASSERT("tcp_write_checks: invalid pcb", pcb != NULL); - - /* connection is in invalid state for data transmission? */ - if ((pcb->state != ESTABLISHED) && - (pcb->state != CLOSE_WAIT) && - (pcb->state != SYN_SENT) && - (pcb->state != SYN_RCVD)) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_STATE | LWIP_DBG_LEVEL_SEVERE, ("tcp_write() called in invalid state\n")); - return ERR_CONN; - } else if (len == 0) { - return ERR_OK; - } - - /* fail on too much data */ - if (len > pcb->snd_buf) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("tcp_write: too much data (len=%"U16_F" > snd_buf=%"TCPWNDSIZE_F")\n", - len, pcb->snd_buf)); - tcp_set_flags(pcb, TF_NAGLEMEMERR); - return ERR_MEM; - } - - LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_write: queuelen: %"TCPWNDSIZE_F"\n", (tcpwnd_size_t)pcb->snd_queuelen)); - - /* If total number of pbufs on the unsent/unacked queues exceeds the - * configured maximum, return an error */ - /* check for configured max queuelen and possible overflow */ - if (pcb->snd_queuelen >= LWIP_MIN(TCP_SND_QUEUELEN, (TCP_SNDQUEUELEN_OVERFLOW + 1))) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SEVERE, ("tcp_write: too long queue %"U16_F" (max %"U16_F")\n", - pcb->snd_queuelen, (u16_t)TCP_SND_QUEUELEN)); - TCP_STATS_INC(tcp.memerr); - tcp_set_flags(pcb, TF_NAGLEMEMERR); - return ERR_MEM; - } - if (pcb->snd_queuelen != 0) { - LWIP_ASSERT("tcp_write: pbufs on queue => at least one queue non-empty", - pcb->unacked != NULL || pcb->unsent != NULL); - } else { - LWIP_ASSERT("tcp_write: no pbufs on queue => both queues empty", - pcb->unacked == NULL && pcb->unsent == NULL); - } - return ERR_OK; -} - -/** - * @ingroup tcp_raw - * Write data for sending (but does not send it immediately). - * - * It waits in the expectation of more data being sent soon (as - * it can send them more efficiently by combining them together). - * To prompt the system to send data now, call tcp_output() after - * calling tcp_write(). - * - * This function enqueues the data pointed to by the argument dataptr. The length of - * the data is passed as the len parameter. The apiflags can be one or more of: - * - TCP_WRITE_FLAG_COPY: indicates whether the new memory should be allocated - * for the data to be copied into. If this flag is not given, no new memory - * should be allocated and the data should only be referenced by pointer. This - * also means that the memory behind dataptr must not change until the data is - * ACKed by the remote host - * - TCP_WRITE_FLAG_MORE: indicates that more data follows. If this is omitted, - * the PSH flag is set in the last segment created by this call to tcp_write. - * If this flag is given, the PSH flag is not set. - * - * The tcp_write() function will fail and return ERR_MEM if the length - * of the data exceeds the current send buffer size or if the length of - * the queue of outgoing segment is larger than the upper limit defined - * in lwipopts.h. The number of bytes available in the output queue can - * be retrieved with the tcp_sndbuf() function. - * - * The proper way to use this function is to call the function with at - * most tcp_sndbuf() bytes of data. If the function returns ERR_MEM, - * the application should wait until some of the currently enqueued - * data has been successfully received by the other host and try again. - * - * @param pcb Protocol control block for the TCP connection to enqueue data for. - * @param arg Pointer to the data to be enqueued for sending. - * @param len Data length in bytes - * @param apiflags combination of following flags : - * - TCP_WRITE_FLAG_COPY (0x01) data will be copied into memory belonging to the stack - * - TCP_WRITE_FLAG_MORE (0x02) for TCP connection, PSH flag will not be set on last segment sent, - * @return ERR_OK if enqueued, another err_t on error - */ -err_t -tcp_write(struct tcp_pcb *pcb, const void *arg, u16_t len, u8_t apiflags) -{ - struct pbuf *concat_p = NULL; - struct tcp_seg *last_unsent = NULL, *seg = NULL, *prev_seg = NULL, *queue = NULL; - u16_t pos = 0; /* position in 'arg' data */ - u16_t queuelen; - u8_t optlen; - u8_t optflags = 0; -#if TCP_OVERSIZE - u16_t oversize = 0; - u16_t oversize_used = 0; -#if TCP_OVERSIZE_DBGCHECK - u16_t oversize_add = 0; -#endif /* TCP_OVERSIZE_DBGCHECK*/ -#endif /* TCP_OVERSIZE */ - u16_t extendlen = 0; -#if TCP_CHECKSUM_ON_COPY - u16_t concat_chksum = 0; - u8_t concat_chksum_swapped = 0; - u16_t concat_chksummed = 0; -#endif /* TCP_CHECKSUM_ON_COPY */ - err_t err; - u16_t mss_local; - - LWIP_ERROR("tcp_write: invalid pcb", pcb != NULL, return ERR_ARG); - - /* don't allocate segments bigger than half the maximum window we ever received */ - mss_local = LWIP_MIN(pcb->mss, TCPWND_MIN16(pcb->snd_wnd_max / 2)); - mss_local = mss_local ? mss_local : pcb->mss; - - LWIP_ASSERT_CORE_LOCKED(); - -#if LWIP_NETIF_TX_SINGLE_PBUF - /* Always copy to try to create single pbufs for TX */ - apiflags |= TCP_WRITE_FLAG_COPY; -#endif /* LWIP_NETIF_TX_SINGLE_PBUF */ - - LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_write(pcb=%p, data=%p, len=%"U16_F", apiflags=%"U16_F")\n", - (void *)pcb, arg, len, (u16_t)apiflags)); - LWIP_ERROR("tcp_write: arg == NULL (programmer violates API)", - arg != NULL, return ERR_ARG;); - - err = tcp_write_checks(pcb, len); - if (err != ERR_OK) { - return err; - } - queuelen = pcb->snd_queuelen; - -#if LWIP_TCP_TIMESTAMPS - if ((pcb->flags & TF_TIMESTAMP)) { - /* Make sure the timestamp option is only included in data segments if we - agreed about it with the remote host. */ - optflags = TF_SEG_OPTS_TS; - optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(TF_SEG_OPTS_TS, pcb); - /* ensure that segments can hold at least one data byte... */ - mss_local = LWIP_MAX(mss_local, LWIP_TCP_OPT_LEN_TS + 1); - } else -#endif /* LWIP_TCP_TIMESTAMPS */ - { - optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(0, pcb); - } - - - /* - * TCP segmentation is done in three phases with increasing complexity: - * - * 1. Copy data directly into an oversized pbuf. - * 2. Chain a new pbuf to the end of pcb->unsent. - * 3. Create new segments. - * - * We may run out of memory at any point. In that case we must - * return ERR_MEM and not change anything in pcb. Therefore, all - * changes are recorded in local variables and committed at the end - * of the function. Some pcb fields are maintained in local copies: - * - * queuelen = pcb->snd_queuelen - * oversize = pcb->unsent_oversize - * - * These variables are set consistently by the phases: - * - * seg points to the last segment tampered with. - * - * pos records progress as data is segmented. - */ - - /* Find the tail of the unsent queue. */ - if (pcb->unsent != NULL) { - u16_t space; - u16_t unsent_optlen; - - /* @todo: this could be sped up by keeping last_unsent in the pcb */ - for (last_unsent = pcb->unsent; last_unsent->next != NULL; - last_unsent = last_unsent->next); - - /* Usable space at the end of the last unsent segment */ - unsent_optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(last_unsent->flags, pcb); - LWIP_ASSERT("mss_local is too small", mss_local >= last_unsent->len + unsent_optlen); - space = mss_local - (last_unsent->len + unsent_optlen); - - /* - * Phase 1: Copy data directly into an oversized pbuf. - * - * The number of bytes copied is recorded in the oversize_used - * variable. The actual copying is done at the bottom of the - * function. - */ -#if TCP_OVERSIZE -#if TCP_OVERSIZE_DBGCHECK - /* check that pcb->unsent_oversize matches last_unsent->oversize_left */ - LWIP_ASSERT("unsent_oversize mismatch (pcb vs. last_unsent)", - pcb->unsent_oversize == last_unsent->oversize_left); -#endif /* TCP_OVERSIZE_DBGCHECK */ - oversize = pcb->unsent_oversize; - if (oversize > 0) { - LWIP_ASSERT("inconsistent oversize vs. space", oversize <= space); - seg = last_unsent; - oversize_used = LWIP_MIN(space, LWIP_MIN(oversize, len)); - pos += oversize_used; - oversize -= oversize_used; - space -= oversize_used; - } - /* now we are either finished or oversize is zero */ - LWIP_ASSERT("inconsistent oversize vs. len", (oversize == 0) || (pos == len)); -#endif /* TCP_OVERSIZE */ - -#if !LWIP_NETIF_TX_SINGLE_PBUF - /* - * Phase 2: Chain a new pbuf to the end of pcb->unsent. - * - * As an exception when NOT copying the data, if the given data buffer - * directly follows the last unsent data buffer in memory, extend the last - * ROM pbuf reference to the buffer, thus saving a ROM pbuf allocation. - * - * We don't extend segments containing SYN/FIN flags or options - * (len==0). The new pbuf is kept in concat_p and pbuf_cat'ed at - * the end. - * - * This phase is skipped for LWIP_NETIF_TX_SINGLE_PBUF as we could only execute - * it after rexmit puts a segment from unacked to unsent and at this point, - * oversize info is lost. - */ - if ((pos < len) && (space > 0) && (last_unsent->len > 0)) { - u16_t seglen = LWIP_MIN(space, len - pos); - seg = last_unsent; - - /* Create a pbuf with a copy or reference to seglen bytes. We - * can use PBUF_RAW here since the data appears in the middle of - * a segment. A header will never be prepended. */ - if (apiflags & TCP_WRITE_FLAG_COPY) { - /* Data is copied */ - if ((concat_p = tcp_pbuf_prealloc(PBUF_RAW, seglen, space, &oversize, pcb, apiflags, 1)) == NULL) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("tcp_write : could not allocate memory for pbuf copy size %"U16_F"\n", - seglen)); - goto memerr; - } -#if TCP_OVERSIZE_DBGCHECK - oversize_add = oversize; -#endif /* TCP_OVERSIZE_DBGCHECK */ - TCP_DATA_COPY2(concat_p->payload, (const u8_t *)arg + pos, seglen, &concat_chksum, &concat_chksum_swapped); -#if TCP_CHECKSUM_ON_COPY - concat_chksummed += seglen; -#endif /* TCP_CHECKSUM_ON_COPY */ - queuelen += pbuf_clen(concat_p); - } else { - /* Data is not copied */ - /* If the last unsent pbuf is of type PBUF_ROM, try to extend it. */ - struct pbuf *p; - for (p = last_unsent->p; p->next != NULL; p = p->next); - if (((p->type_internal & (PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS | PBUF_TYPE_FLAG_DATA_VOLATILE)) == 0) && - (const u8_t *)p->payload + p->len == (const u8_t *)arg) { - LWIP_ASSERT("tcp_write: ROM pbufs cannot be oversized", pos == 0); - extendlen = seglen; - } else { - if ((concat_p = pbuf_alloc(PBUF_RAW, seglen, PBUF_ROM)) == NULL) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("tcp_write: could not allocate memory for zero-copy pbuf\n")); - goto memerr; - } - /* reference the non-volatile payload data */ - ((struct pbuf_rom *)concat_p)->payload = (const u8_t *)arg + pos; - queuelen += pbuf_clen(concat_p); - } -#if TCP_CHECKSUM_ON_COPY - /* calculate the checksum of nocopy-data */ - tcp_seg_add_chksum(~inet_chksum((const u8_t *)arg + pos, seglen), seglen, - &concat_chksum, &concat_chksum_swapped); - concat_chksummed += seglen; -#endif /* TCP_CHECKSUM_ON_COPY */ - } - - pos += seglen; - } -#endif /* !LWIP_NETIF_TX_SINGLE_PBUF */ - } else { -#if TCP_OVERSIZE - LWIP_ASSERT("unsent_oversize mismatch (pcb->unsent is NULL)", - pcb->unsent_oversize == 0); -#endif /* TCP_OVERSIZE */ - } - - /* - * Phase 3: Create new segments. - * - * The new segments are chained together in the local 'queue' - * variable, ready to be appended to pcb->unsent. - */ - while (pos < len) { - struct pbuf *p; - u16_t left = len - pos; - u16_t max_len = mss_local - optlen; - u16_t seglen = LWIP_MIN(left, max_len); -#if TCP_CHECKSUM_ON_COPY - u16_t chksum = 0; - u8_t chksum_swapped = 0; -#endif /* TCP_CHECKSUM_ON_COPY */ - - if (apiflags & TCP_WRITE_FLAG_COPY) { - /* If copy is set, memory should be allocated and data copied - * into pbuf */ - if ((p = tcp_pbuf_prealloc(PBUF_TRANSPORT, seglen + optlen, mss_local, &oversize, pcb, apiflags, queue == NULL)) == NULL) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_write : could not allocate memory for pbuf copy size %"U16_F"\n", seglen)); - goto memerr; - } - LWIP_ASSERT("tcp_write: check that first pbuf can hold the complete seglen", - (p->len >= seglen)); - TCP_DATA_COPY2((char *)p->payload + optlen, (const u8_t *)arg + pos, seglen, &chksum, &chksum_swapped); - } else { - /* Copy is not set: First allocate a pbuf for holding the data. - * Since the referenced data is available at least until it is - * sent out on the link (as it has to be ACKed by the remote - * party) we can safely use PBUF_ROM instead of PBUF_REF here. - */ - struct pbuf *p2; -#if TCP_OVERSIZE - LWIP_ASSERT("oversize == 0", oversize == 0); -#endif /* TCP_OVERSIZE */ - if ((p2 = pbuf_alloc(PBUF_TRANSPORT, seglen, PBUF_ROM)) == NULL) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_write: could not allocate memory for zero-copy pbuf\n")); - goto memerr; - } -#if TCP_CHECKSUM_ON_COPY - /* calculate the checksum of nocopy-data */ - chksum = ~inet_chksum((const u8_t *)arg + pos, seglen); - if (seglen & 1) { - chksum_swapped = 1; - chksum = SWAP_BYTES_IN_WORD(chksum); - } -#endif /* TCP_CHECKSUM_ON_COPY */ - /* reference the non-volatile payload data */ - ((struct pbuf_rom *)p2)->payload = (const u8_t *)arg + pos; - - /* Second, allocate a pbuf for the headers. */ - if ((p = pbuf_alloc(PBUF_TRANSPORT, optlen, PBUF_RAM)) == NULL) { - /* If allocation fails, we have to deallocate the data pbuf as - * well. */ - pbuf_free(p2); - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_write: could not allocate memory for header pbuf\n")); - goto memerr; - } - /* Concatenate the headers and data pbufs together. */ - pbuf_cat(p/*header*/, p2/*data*/); - } - - queuelen += pbuf_clen(p); - - /* Now that there are more segments queued, we check again if the - * length of the queue exceeds the configured maximum or - * overflows. */ - if (queuelen > LWIP_MIN(TCP_SND_QUEUELEN, TCP_SNDQUEUELEN_OVERFLOW)) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_write: queue too long %"U16_F" (%d)\n", - queuelen, (int)TCP_SND_QUEUELEN)); - pbuf_free(p); - goto memerr; - } - - if ((seg = tcp_create_segment(pcb, p, 0, pcb->snd_lbb + pos, optflags)) == NULL) { - goto memerr; - } -#if TCP_OVERSIZE_DBGCHECK - seg->oversize_left = oversize; -#endif /* TCP_OVERSIZE_DBGCHECK */ -#if TCP_CHECKSUM_ON_COPY - seg->chksum = chksum; - seg->chksum_swapped = chksum_swapped; - seg->flags |= TF_SEG_DATA_CHECKSUMMED; -#endif /* TCP_CHECKSUM_ON_COPY */ - - /* first segment of to-be-queued data? */ - if (queue == NULL) { - queue = seg; - } else { - /* Attach the segment to the end of the queued segments */ - LWIP_ASSERT("prev_seg != NULL", prev_seg != NULL); - prev_seg->next = seg; - } - /* remember last segment of to-be-queued data for next iteration */ - prev_seg = seg; - - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_TRACE, ("tcp_write: queueing %"U32_F":%"U32_F"\n", - lwip_ntohl(seg->tcphdr->seqno), - lwip_ntohl(seg->tcphdr->seqno) + TCP_TCPLEN(seg))); - - pos += seglen; - } - - /* - * All three segmentation phases were successful. We can commit the - * transaction. - */ -#if TCP_OVERSIZE_DBGCHECK - if ((last_unsent != NULL) && (oversize_add != 0)) { - last_unsent->oversize_left += oversize_add; - } -#endif /* TCP_OVERSIZE_DBGCHECK */ - - /* - * Phase 1: If data has been added to the preallocated tail of - * last_unsent, we update the length fields of the pbuf chain. - */ -#if TCP_OVERSIZE - if (oversize_used > 0) { - struct pbuf *p; - /* Bump tot_len of whole chain, len of tail */ - for (p = last_unsent->p; p; p = p->next) { - p->tot_len += oversize_used; - if (p->next == NULL) { - TCP_DATA_COPY((char *)p->payload + p->len, arg, oversize_used, last_unsent); - p->len += oversize_used; - } - } - last_unsent->len += oversize_used; -#if TCP_OVERSIZE_DBGCHECK - LWIP_ASSERT("last_unsent->oversize_left >= oversize_used", - last_unsent->oversize_left >= oversize_used); - last_unsent->oversize_left -= oversize_used; -#endif /* TCP_OVERSIZE_DBGCHECK */ - } - pcb->unsent_oversize = oversize; -#endif /* TCP_OVERSIZE */ - - /* - * Phase 2: concat_p can be concatenated onto last_unsent->p, unless we - * determined that the last ROM pbuf can be extended to include the new data. - */ - if (concat_p != NULL) { - LWIP_ASSERT("tcp_write: cannot concatenate when pcb->unsent is empty", - (last_unsent != NULL)); - pbuf_cat(last_unsent->p, concat_p); - last_unsent->len += concat_p->tot_len; - } else if (extendlen > 0) { - struct pbuf *p; - LWIP_ASSERT("tcp_write: extension of reference requires reference", - last_unsent != NULL && last_unsent->p != NULL); - for (p = last_unsent->p; p->next != NULL; p = p->next) { - p->tot_len += extendlen; - } - p->tot_len += extendlen; - p->len += extendlen; - last_unsent->len += extendlen; - } - -#if TCP_CHECKSUM_ON_COPY - if (concat_chksummed) { - LWIP_ASSERT("tcp_write: concat checksum needs concatenated data", - concat_p != NULL || extendlen > 0); - /*if concat checksumm swapped - swap it back */ - if (concat_chksum_swapped) { - concat_chksum = SWAP_BYTES_IN_WORD(concat_chksum); - } - tcp_seg_add_chksum(concat_chksum, concat_chksummed, &last_unsent->chksum, - &last_unsent->chksum_swapped); - last_unsent->flags |= TF_SEG_DATA_CHECKSUMMED; - } -#endif /* TCP_CHECKSUM_ON_COPY */ - - /* - * Phase 3: Append queue to pcb->unsent. Queue may be NULL, but that - * is harmless - */ - if (last_unsent == NULL) { - pcb->unsent = queue; - } else { - last_unsent->next = queue; - } - - /* - * Finally update the pcb state. - */ - pcb->snd_lbb += len; - pcb->snd_buf -= len; - pcb->snd_queuelen = queuelen; - - LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_write: %"S16_F" (after enqueued)\n", - pcb->snd_queuelen)); - if (pcb->snd_queuelen != 0) { - LWIP_ASSERT("tcp_write: valid queue length", - pcb->unacked != NULL || pcb->unsent != NULL); - } - - /* Set the PSH flag in the last segment that we enqueued. */ - if (seg != NULL && seg->tcphdr != NULL && ((apiflags & TCP_WRITE_FLAG_MORE) == 0)) { - TCPH_SET_FLAG(seg->tcphdr, TCP_PSH); - } - - return ERR_OK; -memerr: - tcp_set_flags(pcb, TF_NAGLEMEMERR); - TCP_STATS_INC(tcp.memerr); - - if (concat_p != NULL) { - pbuf_free(concat_p); - } - if (queue != NULL) { - tcp_segs_free(queue); - } - if (pcb->snd_queuelen != 0) { - LWIP_ASSERT("tcp_write: valid queue length", pcb->unacked != NULL || - pcb->unsent != NULL); - } - LWIP_DEBUGF(TCP_QLEN_DEBUG | LWIP_DBG_STATE, ("tcp_write: %"S16_F" (with mem err)\n", pcb->snd_queuelen)); - return ERR_MEM; -} - -/** - * Split segment on the head of the unsent queue. If return is not - * ERR_OK, existing head remains intact - * - * The split is accomplished by creating a new TCP segment and pbuf - * which holds the remainder payload after the split. The original - * pbuf is trimmed to new length. This allows splitting of read-only - * pbufs - * - * @param pcb the tcp_pcb for which to split the unsent head - * @param split the amount of payload to remain in the head - */ -err_t -tcp_split_unsent_seg(struct tcp_pcb *pcb, u16_t split) -{ - struct tcp_seg *seg = NULL, *useg = NULL; - struct pbuf *p = NULL; - u8_t optlen; - u8_t optflags; - u8_t split_flags; - u8_t remainder_flags; - u16_t remainder; - u16_t offset; -#if TCP_CHECKSUM_ON_COPY - u16_t chksum = 0; - u8_t chksum_swapped = 0; - struct pbuf *q; -#endif /* TCP_CHECKSUM_ON_COPY */ - - LWIP_ASSERT("tcp_split_unsent_seg: invalid pcb", pcb != NULL); - - useg = pcb->unsent; - if (useg == NULL) { - return ERR_MEM; - } - - if (split == 0) { - LWIP_ASSERT("Can't split segment into length 0", 0); - return ERR_VAL; - } - - if (useg->len <= split) { - return ERR_OK; - } - - LWIP_ASSERT("split <= mss", split <= pcb->mss); - LWIP_ASSERT("useg->len > 0", useg->len > 0); - - /* We should check that we don't exceed TCP_SND_QUEUELEN but we need - * to split this packet so we may actually exceed the max value by - * one! - */ - LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_enqueue: split_unsent_seg: %u\n", (unsigned int)pcb->snd_queuelen)); - - optflags = useg->flags; -#if TCP_CHECKSUM_ON_COPY - /* Remove since checksum is not stored until after tcp_create_segment() */ - optflags &= ~TF_SEG_DATA_CHECKSUMMED; -#endif /* TCP_CHECKSUM_ON_COPY */ - optlen = LWIP_TCP_OPT_LENGTH(optflags); - remainder = useg->len - split; - - /* Create new pbuf for the remainder of the split */ - p = pbuf_alloc(PBUF_TRANSPORT, remainder + optlen, PBUF_RAM); - if (p == NULL) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("tcp_split_unsent_seg: could not allocate memory for pbuf remainder %u\n", remainder)); - goto memerr; - } - - /* Offset into the original pbuf is past TCP/IP headers, options, and split amount */ - offset = useg->p->tot_len - useg->len + split; - /* Copy remainder into new pbuf, headers and options will not be filled out */ - if (pbuf_copy_partial(useg->p, (u8_t *)p->payload + optlen, remainder, offset ) != remainder) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("tcp_split_unsent_seg: could not copy pbuf remainder %u\n", remainder)); - goto memerr; - } -#if TCP_CHECKSUM_ON_COPY - /* calculate the checksum on remainder data */ - tcp_seg_add_chksum(~inet_chksum((const u8_t *)p->payload + optlen, remainder), remainder, - &chksum, &chksum_swapped); -#endif /* TCP_CHECKSUM_ON_COPY */ - - /* Options are created when calling tcp_output() */ - - /* Migrate flags from original segment */ - split_flags = TCPH_FLAGS(useg->tcphdr); - remainder_flags = 0; /* ACK added in tcp_output() */ - - if (split_flags & TCP_PSH) { - split_flags &= ~TCP_PSH; - remainder_flags |= TCP_PSH; - } - if (split_flags & TCP_FIN) { - split_flags &= ~TCP_FIN; - remainder_flags |= TCP_FIN; - } - /* SYN should be left on split, RST should not be present with data */ - - seg = tcp_create_segment(pcb, p, remainder_flags, lwip_ntohl(useg->tcphdr->seqno) + split, optflags); - if (seg == NULL) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("tcp_split_unsent_seg: could not create new TCP segment\n")); - goto memerr; - } - -#if TCP_CHECKSUM_ON_COPY - seg->chksum = chksum; - seg->chksum_swapped = chksum_swapped; - seg->flags |= TF_SEG_DATA_CHECKSUMMED; -#endif /* TCP_CHECKSUM_ON_COPY */ - - /* Remove this segment from the queue since trimming it may free pbufs */ - pcb->snd_queuelen -= pbuf_clen(useg->p); - - /* Trim the original pbuf into our split size. At this point our remainder segment must be setup - successfully because we are modifying the original segment */ - pbuf_realloc(useg->p, useg->p->tot_len - remainder); - useg->len -= remainder; - TCPH_SET_FLAG(useg->tcphdr, split_flags); -#if TCP_OVERSIZE_DBGCHECK - /* By trimming, realloc may have actually shrunk the pbuf, so clear oversize_left */ - useg->oversize_left = 0; -#endif /* TCP_OVERSIZE_DBGCHECK */ - - /* Add back to the queue with new trimmed pbuf */ - pcb->snd_queuelen += pbuf_clen(useg->p); - -#if TCP_CHECKSUM_ON_COPY - /* The checksum on the split segment is now incorrect. We need to re-run it over the split */ - useg->chksum = 0; - useg->chksum_swapped = 0; - q = useg->p; - offset = q->tot_len - useg->len; /* Offset due to exposed headers */ - - /* Advance to the pbuf where the offset ends */ - while (q != NULL && offset > q->len) { - offset -= q->len; - q = q->next; - } - LWIP_ASSERT("Found start of payload pbuf", q != NULL); - /* Checksum the first payload pbuf accounting for offset, then other pbufs are all payload */ - for (; q != NULL; offset = 0, q = q->next) { - tcp_seg_add_chksum(~inet_chksum((const u8_t *)q->payload + offset, q->len - offset), q->len - offset, - &useg->chksum, &useg->chksum_swapped); - } -#endif /* TCP_CHECKSUM_ON_COPY */ - - /* Update number of segments on the queues. Note that length now may - * exceed TCP_SND_QUEUELEN! We don't have to touch pcb->snd_buf - * because the total amount of data is constant when packet is split */ - pcb->snd_queuelen += pbuf_clen(seg->p); - - /* Finally insert remainder into queue after split (which stays head) */ - seg->next = useg->next; - useg->next = seg; - -#if TCP_OVERSIZE - /* If remainder is last segment on the unsent, ensure we clear the oversize amount - * because the remainder is always sized to the exact remaining amount */ - if (seg->next == NULL) { - pcb->unsent_oversize = 0; - } -#endif /* TCP_OVERSIZE */ - - return ERR_OK; -memerr: - TCP_STATS_INC(tcp.memerr); - - LWIP_ASSERT("seg == NULL", seg == NULL); - if (p != NULL) { - pbuf_free(p); - } - - return ERR_MEM; -} - -/** - * Called by tcp_close() to send a segment including FIN flag but not data. - * This FIN may be added to an existing segment or a new, otherwise empty - * segment is enqueued. - * - * @param pcb the tcp_pcb over which to send a segment - * @return ERR_OK if sent, another err_t otherwise - */ -err_t -tcp_send_fin(struct tcp_pcb *pcb) -{ - LWIP_ASSERT("tcp_send_fin: invalid pcb", pcb != NULL); - - /* first, try to add the fin to the last unsent segment */ - if (pcb->unsent != NULL) { - struct tcp_seg *last_unsent; - for (last_unsent = pcb->unsent; last_unsent->next != NULL; - last_unsent = last_unsent->next); - - if ((TCPH_FLAGS(last_unsent->tcphdr) & (TCP_SYN | TCP_FIN | TCP_RST)) == 0) { - /* no SYN/FIN/RST flag in the header, we can add the FIN flag */ - TCPH_SET_FLAG(last_unsent->tcphdr, TCP_FIN); - tcp_set_flags(pcb, TF_FIN); - return ERR_OK; - } - } - /* no data, no length, flags, copy=1, no optdata */ - return tcp_enqueue_flags(pcb, TCP_FIN); -} - -/** - * Enqueue SYN or FIN for transmission. - * - * Called by @ref tcp_connect, tcp_listen_input, and @ref tcp_close - * (via @ref tcp_send_fin) - * - * @param pcb Protocol control block for the TCP connection. - * @param flags TCP header flags to set in the outgoing segment. - */ -err_t -tcp_enqueue_flags(struct tcp_pcb *pcb, u8_t flags) -{ - struct pbuf *p; - struct tcp_seg *seg; - u8_t optflags = 0; - u8_t optlen = 0; - - LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_enqueue_flags: queuelen: %"U16_F"\n", (u16_t)pcb->snd_queuelen)); - - LWIP_ASSERT("tcp_enqueue_flags: need either TCP_SYN or TCP_FIN in flags (programmer violates API)", - (flags & (TCP_SYN | TCP_FIN)) != 0); - LWIP_ASSERT("tcp_enqueue_flags: invalid pcb", pcb != NULL); - - /* No need to check pcb->snd_queuelen if only SYN or FIN are allowed! */ - - /* Get options for this segment. This is a special case since this is the - only place where a SYN can be sent. */ - if (flags & TCP_SYN) { - optflags = TF_SEG_OPTS_MSS; -#if LWIP_WND_SCALE - if ((pcb->state != SYN_RCVD) || (pcb->flags & TF_WND_SCALE)) { - /* In a (sent in state SYN_RCVD), the window scale option may only - be sent if we received a window scale option from the remote host. */ - optflags |= TF_SEG_OPTS_WND_SCALE; - } -#endif /* LWIP_WND_SCALE */ -#if LWIP_TCP_SACK_OUT - if ((pcb->state != SYN_RCVD) || (pcb->flags & TF_SACK)) { - /* In a (sent in state SYN_RCVD), the SACK_PERM option may only - be sent if we received a SACK_PERM option from the remote host. */ - optflags |= TF_SEG_OPTS_SACK_PERM; - } -#endif /* LWIP_TCP_SACK_OUT */ - } -#if LWIP_TCP_TIMESTAMPS - if ((pcb->flags & TF_TIMESTAMP) || ((flags & TCP_SYN) && (pcb->state != SYN_RCVD))) { - /* Make sure the timestamp option is only included in data segments if we - agreed about it with the remote host (and in active open SYN segments). */ - optflags |= TF_SEG_OPTS_TS; - } -#endif /* LWIP_TCP_TIMESTAMPS */ - optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(optflags, pcb); - - /* Allocate pbuf with room for TCP header + options */ - if ((p = pbuf_alloc(PBUF_TRANSPORT, optlen, PBUF_RAM)) == NULL) { - tcp_set_flags(pcb, TF_NAGLEMEMERR); - TCP_STATS_INC(tcp.memerr); - return ERR_MEM; - } - LWIP_ASSERT("tcp_enqueue_flags: check that first pbuf can hold optlen", - (p->len >= optlen)); - - /* Allocate memory for tcp_seg, and fill in fields. */ - if ((seg = tcp_create_segment(pcb, p, flags, pcb->snd_lbb, optflags)) == NULL) { - tcp_set_flags(pcb, TF_NAGLEMEMERR); - TCP_STATS_INC(tcp.memerr); - return ERR_MEM; - } - LWIP_ASSERT("seg->tcphdr not aligned", ((mem_ptr_t)seg->tcphdr % LWIP_MIN(MEM_ALIGNMENT, 4)) == 0); - LWIP_ASSERT("tcp_enqueue_flags: invalid segment length", seg->len == 0); - - LWIP_DEBUGF(TCP_OUTPUT_DEBUG | LWIP_DBG_TRACE, - ("tcp_enqueue_flags: queueing %"U32_F":%"U32_F" (0x%"X16_F")\n", - lwip_ntohl(seg->tcphdr->seqno), - lwip_ntohl(seg->tcphdr->seqno) + TCP_TCPLEN(seg), - (u16_t)flags)); - - /* Now append seg to pcb->unsent queue */ - if (pcb->unsent == NULL) { - pcb->unsent = seg; - } else { - struct tcp_seg *useg; - for (useg = pcb->unsent; useg->next != NULL; useg = useg->next); - useg->next = seg; - } -#if TCP_OVERSIZE - /* The new unsent tail has no space */ - pcb->unsent_oversize = 0; -#endif /* TCP_OVERSIZE */ - - /* SYN and FIN bump the sequence number */ - if ((flags & TCP_SYN) || (flags & TCP_FIN)) { - pcb->snd_lbb++; - /* optlen does not influence snd_buf */ - } - if (flags & TCP_FIN) { - tcp_set_flags(pcb, TF_FIN); - } - - /* update number of segments on the queues */ - pcb->snd_queuelen += pbuf_clen(seg->p); - LWIP_DEBUGF(TCP_QLEN_DEBUG, ("tcp_enqueue_flags: %"S16_F" (after enqueued)\n", pcb->snd_queuelen)); - if (pcb->snd_queuelen != 0) { - LWIP_ASSERT("tcp_enqueue_flags: invalid queue length", - pcb->unacked != NULL || pcb->unsent != NULL); - } - - return ERR_OK; -} - -#if LWIP_TCP_TIMESTAMPS -/* Build a timestamp option (12 bytes long) at the specified options pointer) - * - * @param pcb tcp_pcb - * @param opts option pointer where to store the timestamp option - */ -static void -tcp_build_timestamp_option(const struct tcp_pcb *pcb, u32_t *opts) -{ - LWIP_ASSERT("tcp_build_timestamp_option: invalid pcb", pcb != NULL); - - /* Pad with two NOP options to make everything nicely aligned */ - opts[0] = PP_HTONL(0x0101080A); - opts[1] = lwip_htonl(sys_now()); - opts[2] = lwip_htonl(pcb->ts_recent); -} -#endif - -#if LWIP_TCP_SACK_OUT -/** - * Calculates the number of SACK entries that should be generated. - * It takes into account whether TF_SACK flag is set, - * the number of SACK entries in tcp_pcb that are valid, - * as well as the available options size. - * - * @param pcb tcp_pcb - * @param optlen the length of other TCP options (in bytes) - * @return the number of SACK ranges that can be used - */ -static u8_t -tcp_get_num_sacks(const struct tcp_pcb *pcb, u8_t optlen) -{ - u8_t num_sacks = 0; - - LWIP_ASSERT("tcp_get_num_sacks: invalid pcb", pcb != NULL); - - if (pcb->flags & TF_SACK) { - u8_t i; - - /* The first SACK takes up 12 bytes (it includes SACK header and two NOP options), - each additional one - 8 bytes. */ - optlen += 12; - - /* Max options size = 40, number of SACK array entries = LWIP_TCP_MAX_SACK_NUM */ - for (i = 0; (i < LWIP_TCP_MAX_SACK_NUM) && (optlen <= TCP_MAX_OPTION_BYTES) && - LWIP_TCP_SACK_VALID(pcb, i); ++i) { - ++num_sacks; - optlen += 8; - } - } - - return num_sacks; -} - -/** Build a SACK option (12 or more bytes long) at the specified options pointer) - * - * @param pcb tcp_pcb - * @param opts option pointer where to store the SACK option - * @param num_sacks the number of SACKs to store - */ -static void -tcp_build_sack_option(const struct tcp_pcb *pcb, u32_t *opts, u8_t num_sacks) -{ - u8_t i; - - LWIP_ASSERT("tcp_build_sack_option: invalid pcb", pcb != NULL); - LWIP_ASSERT("tcp_build_sack_option: invalid opts", opts != NULL); - - /* Pad with two NOP options to make everything nicely aligned. - We add the length (of just the SACK option, not the NOPs in front of it), - which is 2B of header, plus 8B for each SACK. */ - *(opts++) = PP_HTONL(0x01010500 + 2 + num_sacks * 8); - - for (i = 0; i < num_sacks; ++i) { - *(opts++) = lwip_htonl(pcb->rcv_sacks[i].left); - *(opts++) = lwip_htonl(pcb->rcv_sacks[i].right); - } -} - -#endif - -#if LWIP_WND_SCALE -/** Build a window scale option (3 bytes long) at the specified options pointer) - * - * @param opts option pointer where to store the window scale option - */ -static void -tcp_build_wnd_scale_option(u32_t *opts) -{ - LWIP_ASSERT("tcp_build_wnd_scale_option: invalid opts", opts != NULL); - - /* Pad with one NOP option to make everything nicely aligned */ - opts[0] = PP_HTONL(0x01030300 | TCP_RCV_SCALE); -} -#endif - -/** - * @ingroup tcp_raw - * Find out what we can send and send it - * - * @param pcb Protocol control block for the TCP connection to send data - * @return ERR_OK if data has been sent or nothing to send - * another err_t on error - */ -err_t -tcp_output(struct tcp_pcb *pcb) -{ - struct tcp_seg *seg, *useg; - u32_t wnd, snd_nxt; - err_t err; - struct netif *netif; -#if TCP_CWND_DEBUG - s16_t i = 0; -#endif /* TCP_CWND_DEBUG */ - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ASSERT("tcp_output: invalid pcb", pcb != NULL); - /* pcb->state LISTEN not allowed here */ - LWIP_ASSERT("don't call tcp_output for listen-pcbs", - pcb->state != LISTEN); - - /* First, check if we are invoked by the TCP input processing - code. If so, we do not output anything. Instead, we rely on the - input processing code to call us when input processing is done - with. */ - if (tcp_input_pcb == pcb) { - return ERR_OK; - } - - wnd = LWIP_MIN(pcb->snd_wnd, pcb->cwnd); - - seg = pcb->unsent; - - if (seg == NULL) { - LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_output: nothing to send (%p)\n", - (void *)pcb->unsent)); - LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_output: snd_wnd %"TCPWNDSIZE_F - ", cwnd %"TCPWNDSIZE_F", wnd %"U32_F - ", seg == NULL, ack %"U32_F"\n", - pcb->snd_wnd, pcb->cwnd, wnd, pcb->lastack)); - - /* If the TF_ACK_NOW flag is set and the ->unsent queue is empty, construct - * an empty ACK segment and send it. */ - if (pcb->flags & TF_ACK_NOW) { - return tcp_send_empty_ack(pcb); - } - /* nothing to send: shortcut out of here */ - goto output_done; - } else { - LWIP_DEBUGF(TCP_CWND_DEBUG, - ("tcp_output: snd_wnd %"TCPWNDSIZE_F", cwnd %"TCPWNDSIZE_F", wnd %"U32_F - ", effwnd %"U32_F", seq %"U32_F", ack %"U32_F"\n", - pcb->snd_wnd, pcb->cwnd, wnd, - lwip_ntohl(seg->tcphdr->seqno) - pcb->lastack + seg->len, - lwip_ntohl(seg->tcphdr->seqno), pcb->lastack)); - } - - netif = tcp_route(pcb, &pcb->local_ip, &pcb->remote_ip); - if (netif == NULL) { - return ERR_RTE; - } - - /* If we don't have a local IP address, we get one from netif */ - if (ip_addr_isany(&pcb->local_ip)) { - const ip_addr_t *local_ip = ip_netif_get_local_ip(netif, &pcb->remote_ip); - if (local_ip == NULL) { - return ERR_RTE; - } - ip_addr_copy(pcb->local_ip, *local_ip); - } - - /* Handle the current segment not fitting within the window */ - if (lwip_ntohl(seg->tcphdr->seqno) - pcb->lastack + seg->len > wnd) { - /* We need to start the persistent timer when the next unsent segment does not fit - * within the remaining (could be 0) send window and RTO timer is not running (we - * have no in-flight data). If window is still too small after persist timer fires, - * then we split the segment. We don't consider the congestion window since a cwnd - * smaller than 1 SMSS implies in-flight data - */ - if (wnd == pcb->snd_wnd && pcb->unacked == NULL && pcb->persist_backoff == 0) { - pcb->persist_cnt = 0; - pcb->persist_backoff = 1; - pcb->persist_probe = 0; - } - /* We need an ACK, but can't send data now, so send an empty ACK */ - if (pcb->flags & TF_ACK_NOW) { - return tcp_send_empty_ack(pcb); - } - goto output_done; - } - /* Stop persist timer, above conditions are not active */ - pcb->persist_backoff = 0; - - /* useg should point to last segment on unacked queue */ - useg = pcb->unacked; - if (useg != NULL) { - for (; useg->next != NULL; useg = useg->next); - } - /* data available and window allows it to be sent? */ - while (seg != NULL && - lwip_ntohl(seg->tcphdr->seqno) - pcb->lastack + seg->len <= wnd) { - LWIP_ASSERT("RST not expected here!", - (TCPH_FLAGS(seg->tcphdr) & TCP_RST) == 0); - /* Stop sending if the nagle algorithm would prevent it - * Don't stop: - * - if tcp_write had a memory error before (prevent delayed ACK timeout) or - * - if FIN was already enqueued for this PCB (SYN is always alone in a segment - - * either seg->next != NULL or pcb->unacked == NULL; - * RST is no sent using tcp_write/tcp_output. - */ - if ((tcp_do_output_nagle(pcb) == 0) && - ((pcb->flags & (TF_NAGLEMEMERR | TF_FIN)) == 0)) { - break; - } -#if TCP_CWND_DEBUG - LWIP_DEBUGF(TCP_CWND_DEBUG, ("tcp_output: snd_wnd %"TCPWNDSIZE_F", cwnd %"TCPWNDSIZE_F", wnd %"U32_F", effwnd %"U32_F", seq %"U32_F", ack %"U32_F", i %"S16_F"\n", - pcb->snd_wnd, pcb->cwnd, wnd, - lwip_ntohl(seg->tcphdr->seqno) + seg->len - - pcb->lastack, - lwip_ntohl(seg->tcphdr->seqno), pcb->lastack, i)); - ++i; -#endif /* TCP_CWND_DEBUG */ - - if (pcb->state != SYN_SENT) { - TCPH_SET_FLAG(seg->tcphdr, TCP_ACK); - } - - err = tcp_output_segment(seg, pcb, netif); - if (err != ERR_OK) { - /* segment could not be sent, for whatever reason */ - tcp_set_flags(pcb, TF_NAGLEMEMERR); - return err; - } -#if TCP_OVERSIZE_DBGCHECK - seg->oversize_left = 0; -#endif /* TCP_OVERSIZE_DBGCHECK */ - pcb->unsent = seg->next; - if (pcb->state != SYN_SENT) { - tcp_clear_flags(pcb, TF_ACK_DELAY | TF_ACK_NOW); - } - snd_nxt = lwip_ntohl(seg->tcphdr->seqno) + TCP_TCPLEN(seg); - if (TCP_SEQ_LT(pcb->snd_nxt, snd_nxt)) { - pcb->snd_nxt = snd_nxt; - } - /* put segment on unacknowledged list if length > 0 */ - if (TCP_TCPLEN(seg) > 0) { - seg->next = NULL; - /* unacked list is empty? */ - if (pcb->unacked == NULL) { - pcb->unacked = seg; - useg = seg; - /* unacked list is not empty? */ - } else { - /* In the case of fast retransmit, the packet should not go to the tail - * of the unacked queue, but rather somewhere before it. We need to check for - * this case. -STJ Jul 27, 2004 */ - if (TCP_SEQ_LT(lwip_ntohl(seg->tcphdr->seqno), lwip_ntohl(useg->tcphdr->seqno))) { - /* add segment to before tail of unacked list, keeping the list sorted */ - struct tcp_seg **cur_seg = &(pcb->unacked); - while (*cur_seg && - TCP_SEQ_LT(lwip_ntohl((*cur_seg)->tcphdr->seqno), lwip_ntohl(seg->tcphdr->seqno))) { - cur_seg = &((*cur_seg)->next ); - } - seg->next = (*cur_seg); - (*cur_seg) = seg; - } else { - /* add segment to tail of unacked list */ - useg->next = seg; - useg = useg->next; - } - } - /* do not queue empty segments on the unacked list */ - } else { - tcp_seg_free(seg); - } - seg = pcb->unsent; - } -#if TCP_OVERSIZE - if (pcb->unsent == NULL) { - /* last unsent has been removed, reset unsent_oversize */ - pcb->unsent_oversize = 0; - } -#endif /* TCP_OVERSIZE */ - -output_done: - tcp_clear_flags(pcb, TF_NAGLEMEMERR); - return ERR_OK; -} - -/** Check if a segment's pbufs are used by someone else than TCP. - * This can happen on retransmission if the pbuf of this segment is still - * referenced by the netif driver due to deferred transmission. - * This is the case (only!) if someone down the TX call path called - * pbuf_ref() on one of the pbufs! - * - * @arg seg the tcp segment to check - * @return 1 if ref != 1, 0 if ref == 1 - */ -static int -tcp_output_segment_busy(const struct tcp_seg *seg) -{ - LWIP_ASSERT("tcp_output_segment_busy: invalid seg", seg != NULL); - - /* We only need to check the first pbuf here: - If a pbuf is queued for transmission, a driver calls pbuf_ref(), - which only changes the ref count of the first pbuf */ - if (seg->p->ref != 1) { - /* other reference found */ - return 1; - } - /* no other references found */ - return 0; -} - -/** - * Called by tcp_output() to actually send a TCP segment over IP. - * - * @param seg the tcp_seg to send - * @param pcb the tcp_pcb for the TCP connection used to send the segment - * @param netif the netif used to send the segment - */ -static err_t -tcp_output_segment(struct tcp_seg *seg, struct tcp_pcb *pcb, struct netif *netif) -{ - err_t err; - u16_t len; - u32_t *opts; -#if TCP_CHECKSUM_ON_COPY - int seg_chksum_was_swapped = 0; -#endif - - LWIP_ASSERT("tcp_output_segment: invalid seg", seg != NULL); - LWIP_ASSERT("tcp_output_segment: invalid pcb", pcb != NULL); - LWIP_ASSERT("tcp_output_segment: invalid netif", netif != NULL); - - if (tcp_output_segment_busy(seg)) { - /* This should not happen: rexmit functions should have checked this. - However, since this function modifies p->len, we must not continue in this case. */ - LWIP_DEBUGF(TCP_RTO_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("tcp_output_segment: segment busy\n")); - return ERR_OK; - } - - /* The TCP header has already been constructed, but the ackno and - wnd fields remain. */ - seg->tcphdr->ackno = lwip_htonl(pcb->rcv_nxt); - - /* advertise our receive window size in this TCP segment */ -#if LWIP_WND_SCALE - if (seg->flags & TF_SEG_OPTS_WND_SCALE) { - /* The Window field in a SYN segment itself (the only type where we send - the window scale option) is never scaled. */ - seg->tcphdr->wnd = lwip_htons(TCPWND_MIN16(pcb->rcv_ann_wnd)); - } else -#endif /* LWIP_WND_SCALE */ - { - seg->tcphdr->wnd = lwip_htons(TCPWND_MIN16(RCV_WND_SCALE(pcb, pcb->rcv_ann_wnd))); - } - - pcb->rcv_ann_right_edge = pcb->rcv_nxt + pcb->rcv_ann_wnd; - - /* Add any requested options. NB MSS option is only set on SYN - packets, so ignore it here */ - /* cast through void* to get rid of alignment warnings */ - opts = (u32_t *)(void *)(seg->tcphdr + 1); - if (seg->flags & TF_SEG_OPTS_MSS) { - u16_t mss; -#if TCP_CALCULATE_EFF_SEND_MSS - mss = tcp_eff_send_mss_netif(TCP_MSS, netif, &pcb->remote_ip); -#else /* TCP_CALCULATE_EFF_SEND_MSS */ - mss = TCP_MSS; -#endif /* TCP_CALCULATE_EFF_SEND_MSS */ - *opts = TCP_BUILD_MSS_OPTION(mss); - opts += 1; - } -#if LWIP_TCP_TIMESTAMPS - pcb->ts_lastacksent = pcb->rcv_nxt; - - if (seg->flags & TF_SEG_OPTS_TS) { - tcp_build_timestamp_option(pcb, opts); - opts += 3; - } -#endif -#if LWIP_WND_SCALE - if (seg->flags & TF_SEG_OPTS_WND_SCALE) { - tcp_build_wnd_scale_option(opts); - opts += 1; - } -#endif -#if LWIP_TCP_SACK_OUT - if (seg->flags & TF_SEG_OPTS_SACK_PERM) { - /* Pad with two NOP options to make everything nicely aligned - * NOTE: When we send both timestamp and SACK_PERM options, - * we could use the first two NOPs before the timestamp to store SACK_PERM option, - * but that would complicate the code. - */ - *(opts++) = PP_HTONL(0x01010402); - } -#endif - - /* Set retransmission timer running if it is not currently enabled - This must be set before checking the route. */ - if (pcb->rtime < 0) { - pcb->rtime = 0; - } - - if (pcb->rttest == 0) { - pcb->rttest = tcp_ticks; - pcb->rtseq = lwip_ntohl(seg->tcphdr->seqno); - - LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_output_segment: rtseq %"U32_F"\n", pcb->rtseq)); - } - LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_output_segment: %"U32_F":%"U32_F"\n", - lwip_htonl(seg->tcphdr->seqno), lwip_htonl(seg->tcphdr->seqno) + - seg->len)); - - len = (u16_t)((u8_t *)seg->tcphdr - (u8_t *)seg->p->payload); - if (len == 0) { - /** Exclude retransmitted segments from this count. */ - MIB2_STATS_INC(mib2.tcpoutsegs); - } - - seg->p->len -= len; - seg->p->tot_len -= len; - - seg->p->payload = seg->tcphdr; - - seg->tcphdr->chksum = 0; - -#ifdef LWIP_HOOK_TCP_OUT_ADD_TCPOPTS - opts = LWIP_HOOK_TCP_OUT_ADD_TCPOPTS(seg->p, seg->tcphdr, pcb, opts); -#endif - LWIP_ASSERT("options not filled", (u8_t *)opts == ((u8_t *)(seg->tcphdr + 1)) + LWIP_TCP_OPT_LENGTH_SEGMENT(seg->flags, pcb)); - -#if CHECKSUM_GEN_TCP - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_TCP) { -#if TCP_CHECKSUM_ON_COPY - u32_t acc; -#if TCP_CHECKSUM_ON_COPY_SANITY_CHECK - u16_t chksum_slow = ip_chksum_pseudo(seg->p, IP_PROTO_TCP, - seg->p->tot_len, &pcb->local_ip, &pcb->remote_ip); -#endif /* TCP_CHECKSUM_ON_COPY_SANITY_CHECK */ - if ((seg->flags & TF_SEG_DATA_CHECKSUMMED) == 0) { - LWIP_ASSERT("data included but not checksummed", - seg->p->tot_len == TCPH_HDRLEN_BYTES(seg->tcphdr)); - } - - /* rebuild TCP header checksum (TCP header changes for retransmissions!) */ - acc = ip_chksum_pseudo_partial(seg->p, IP_PROTO_TCP, - seg->p->tot_len, TCPH_HDRLEN_BYTES(seg->tcphdr), &pcb->local_ip, &pcb->remote_ip); - /* add payload checksum */ - if (seg->chksum_swapped) { - seg_chksum_was_swapped = 1; - seg->chksum = SWAP_BYTES_IN_WORD(seg->chksum); - seg->chksum_swapped = 0; - } - acc = (u16_t)~acc + seg->chksum; - seg->tcphdr->chksum = (u16_t)~FOLD_U32T(acc); -#if TCP_CHECKSUM_ON_COPY_SANITY_CHECK - if (chksum_slow != seg->tcphdr->chksum) { - TCP_CHECKSUM_ON_COPY_SANITY_CHECK_FAIL( - ("tcp_output_segment: calculated checksum is %"X16_F" instead of %"X16_F"\n", - seg->tcphdr->chksum, chksum_slow)); - seg->tcphdr->chksum = chksum_slow; - } -#endif /* TCP_CHECKSUM_ON_COPY_SANITY_CHECK */ -#else /* TCP_CHECKSUM_ON_COPY */ - seg->tcphdr->chksum = ip_chksum_pseudo(seg->p, IP_PROTO_TCP, - seg->p->tot_len, &pcb->local_ip, &pcb->remote_ip); -#endif /* TCP_CHECKSUM_ON_COPY */ - } -#endif /* CHECKSUM_GEN_TCP */ - TCP_STATS_INC(tcp.xmit); - - NETIF_SET_HINTS(netif, &(pcb->netif_hints)); - err = ip_output_if(seg->p, &pcb->local_ip, &pcb->remote_ip, pcb->ttl, - pcb->tos, IP_PROTO_TCP, netif); - NETIF_RESET_HINTS(netif); - -#if TCP_CHECKSUM_ON_COPY - if (seg_chksum_was_swapped) { - /* if data is added to this segment later, chksum needs to be swapped, - so restore this now */ - seg->chksum = SWAP_BYTES_IN_WORD(seg->chksum); - seg->chksum_swapped = 1; - } -#endif - - return err; -} - -/** - * Requeue all unacked segments for retransmission - * - * Called by tcp_slowtmr() for slow retransmission. - * - * @param pcb the tcp_pcb for which to re-enqueue all unacked segments - */ -err_t -tcp_rexmit_rto_prepare(struct tcp_pcb *pcb) -{ - struct tcp_seg *seg; - - LWIP_ASSERT("tcp_rexmit_rto_prepare: invalid pcb", pcb != NULL); - - if (pcb->unacked == NULL) { - return ERR_VAL; - } - - /* Move all unacked segments to the head of the unsent queue. - However, give up if any of the unsent pbufs are still referenced by the - netif driver due to deferred transmission. No point loading the link further - if it is struggling to flush its buffered writes. */ - for (seg = pcb->unacked; seg->next != NULL; seg = seg->next) { - if (tcp_output_segment_busy(seg)) { - LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_rexmit_rto: segment busy\n")); - return ERR_VAL; - } - } - if (tcp_output_segment_busy(seg)) { - LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_rexmit_rto: segment busy\n")); - return ERR_VAL; - } - /* concatenate unsent queue after unacked queue */ - seg->next = pcb->unsent; -#if TCP_OVERSIZE_DBGCHECK - /* if last unsent changed, we need to update unsent_oversize */ - if (pcb->unsent == NULL) { - pcb->unsent_oversize = seg->oversize_left; - } -#endif /* TCP_OVERSIZE_DBGCHECK */ - /* unsent queue is the concatenated queue (of unacked, unsent) */ - pcb->unsent = pcb->unacked; - /* unacked queue is now empty */ - pcb->unacked = NULL; - - /* Mark RTO in-progress */ - tcp_set_flags(pcb, TF_RTO); - /* Record the next byte following retransmit */ - pcb->rto_end = lwip_ntohl(seg->tcphdr->seqno) + TCP_TCPLEN(seg); - /* Don't take any RTT measurements after retransmitting. */ - pcb->rttest = 0; - - return ERR_OK; -} - -/** - * Requeue all unacked segments for retransmission - * - * Called by tcp_slowtmr() for slow retransmission. - * - * @param pcb the tcp_pcb for which to re-enqueue all unacked segments - */ -void -tcp_rexmit_rto_commit(struct tcp_pcb *pcb) -{ - LWIP_ASSERT("tcp_rexmit_rto_commit: invalid pcb", pcb != NULL); - - /* increment number of retransmissions */ - if (pcb->nrtx < 0xFF) { - ++pcb->nrtx; - } - /* Do the actual retransmission */ - tcp_output(pcb); -} - -/** - * Requeue all unacked segments for retransmission - * - * Called by tcp_process() only, tcp_slowtmr() needs to do some things between - * "prepare" and "commit". - * - * @param pcb the tcp_pcb for which to re-enqueue all unacked segments - */ -void -tcp_rexmit_rto(struct tcp_pcb *pcb) -{ - LWIP_ASSERT("tcp_rexmit_rto: invalid pcb", pcb != NULL); - - if (tcp_rexmit_rto_prepare(pcb) == ERR_OK) { - tcp_rexmit_rto_commit(pcb); - } -} - -/** - * Requeue the first unacked segment for retransmission - * - * Called by tcp_receive() for fast retransmit. - * - * @param pcb the tcp_pcb for which to retransmit the first unacked segment - */ -err_t -tcp_rexmit(struct tcp_pcb *pcb) -{ - struct tcp_seg *seg; - struct tcp_seg **cur_seg; - - LWIP_ASSERT("tcp_rexmit: invalid pcb", pcb != NULL); - - if (pcb->unacked == NULL) { - return ERR_VAL; - } - - seg = pcb->unacked; - - /* Give up if the segment is still referenced by the netif driver - due to deferred transmission. */ - if (tcp_output_segment_busy(seg)) { - LWIP_DEBUGF(TCP_RTO_DEBUG, ("tcp_rexmit busy\n")); - return ERR_VAL; - } - - /* Move the first unacked segment to the unsent queue */ - /* Keep the unsent queue sorted. */ - pcb->unacked = seg->next; - - cur_seg = &(pcb->unsent); - while (*cur_seg && - TCP_SEQ_LT(lwip_ntohl((*cur_seg)->tcphdr->seqno), lwip_ntohl(seg->tcphdr->seqno))) { - cur_seg = &((*cur_seg)->next ); - } - seg->next = *cur_seg; - *cur_seg = seg; -#if TCP_OVERSIZE - if (seg->next == NULL) { - /* the retransmitted segment is last in unsent, so reset unsent_oversize */ - pcb->unsent_oversize = 0; - } -#endif /* TCP_OVERSIZE */ - - if (pcb->nrtx < 0xFF) { - ++pcb->nrtx; - } - - /* Don't take any rtt measurements after retransmitting. */ - pcb->rttest = 0; - - /* Do the actual retransmission. */ - MIB2_STATS_INC(mib2.tcpretranssegs); - /* No need to call tcp_output: we are always called from tcp_input() - and thus tcp_output directly returns. */ - return ERR_OK; -} - - -/** - * Handle retransmission after three dupacks received - * - * @param pcb the tcp_pcb for which to retransmit the first unacked segment - */ -void -tcp_rexmit_fast(struct tcp_pcb *pcb) -{ - LWIP_ASSERT("tcp_rexmit_fast: invalid pcb", pcb != NULL); - - if (pcb->unacked != NULL && !(pcb->flags & TF_INFR)) { - /* This is fast retransmit. Retransmit the first unacked segment. */ - LWIP_DEBUGF(TCP_FR_DEBUG, - ("tcp_receive: dupacks %"U16_F" (%"U32_F - "), fast retransmit %"U32_F"\n", - (u16_t)pcb->dupacks, pcb->lastack, - lwip_ntohl(pcb->unacked->tcphdr->seqno))); - if (tcp_rexmit(pcb) == ERR_OK) { - /* Set ssthresh to half of the minimum of the current - * cwnd and the advertised window */ - pcb->ssthresh = LWIP_MIN(pcb->cwnd, pcb->snd_wnd) / 2; - - /* The minimum value for ssthresh should be 2 MSS */ - if (pcb->ssthresh < (2U * pcb->mss)) { - LWIP_DEBUGF(TCP_FR_DEBUG, - ("tcp_receive: The minimum value for ssthresh %"TCPWNDSIZE_F - " should be min 2 mss %"U16_F"...\n", - pcb->ssthresh, (u16_t)(2 * pcb->mss))); - pcb->ssthresh = 2 * pcb->mss; - } - - pcb->cwnd = pcb->ssthresh + 3 * pcb->mss; - tcp_set_flags(pcb, TF_INFR); - - /* Reset the retransmission timer to prevent immediate rto retransmissions */ - pcb->rtime = 0; - } - } -} - -static struct pbuf * -tcp_output_alloc_header_common(u32_t ackno, u16_t optlen, u16_t datalen, - u32_t seqno_be /* already in network byte order */, - u16_t src_port, u16_t dst_port, u8_t flags, u16_t wnd) -{ - struct tcp_hdr *tcphdr; - struct pbuf *p; - - p = pbuf_alloc(PBUF_IP, TCP_HLEN + optlen + datalen, PBUF_RAM); - if (p != NULL) { - LWIP_ASSERT("check that first pbuf can hold struct tcp_hdr", - (p->len >= TCP_HLEN + optlen)); - tcphdr = (struct tcp_hdr *)p->payload; - tcphdr->src = lwip_htons(src_port); - tcphdr->dest = lwip_htons(dst_port); - tcphdr->seqno = seqno_be; - tcphdr->ackno = lwip_htonl(ackno); - TCPH_HDRLEN_FLAGS_SET(tcphdr, (5 + optlen / 4), flags); - tcphdr->wnd = lwip_htons(wnd); - tcphdr->chksum = 0; - tcphdr->urgp = 0; - } - return p; -} - -/** Allocate a pbuf and create a tcphdr at p->payload, used for output - * functions other than the default tcp_output -> tcp_output_segment - * (e.g. tcp_send_empty_ack, etc.) - * - * @param pcb tcp pcb for which to send a packet (used to initialize tcp_hdr) - * @param optlen length of header-options - * @param datalen length of tcp data to reserve in pbuf - * @param seqno_be seqno in network byte order (big-endian) - * @return pbuf with p->payload being the tcp_hdr - */ -static struct pbuf * -tcp_output_alloc_header(struct tcp_pcb *pcb, u16_t optlen, u16_t datalen, - u32_t seqno_be /* already in network byte order */) -{ - struct pbuf *p; - - LWIP_ASSERT("tcp_output_alloc_header: invalid pcb", pcb != NULL); - - p = tcp_output_alloc_header_common(pcb->rcv_nxt, optlen, datalen, - seqno_be, pcb->local_port, pcb->remote_port, TCP_ACK, - TCPWND_MIN16(RCV_WND_SCALE(pcb, pcb->rcv_ann_wnd))); - if (p != NULL) { - /* If we're sending a packet, update the announced right window edge */ - pcb->rcv_ann_right_edge = pcb->rcv_nxt + pcb->rcv_ann_wnd; - } - return p; -} - -/* Fill in options for control segments */ -static void -tcp_output_fill_options(const struct tcp_pcb *pcb, struct pbuf *p, u8_t optflags, u8_t num_sacks) -{ - struct tcp_hdr *tcphdr; - u32_t *opts; - u16_t sacks_len = 0; - - LWIP_ASSERT("tcp_output_fill_options: invalid pbuf", p != NULL); - - tcphdr = (struct tcp_hdr *)p->payload; - opts = (u32_t *)(void *)(tcphdr + 1); - - /* NB. MSS and window scale options are only sent on SYNs, so ignore them here */ - -#if LWIP_TCP_TIMESTAMPS - if (optflags & TF_SEG_OPTS_TS) { - tcp_build_timestamp_option(pcb, opts); - opts += 3; - } -#endif - -#if LWIP_TCP_SACK_OUT - if (pcb && (num_sacks > 0)) { - tcp_build_sack_option(pcb, opts, num_sacks); - /* 1 word for SACKs header (including 2xNOP), and 2 words for each SACK */ - sacks_len = 1 + num_sacks * 2; - opts += sacks_len; - } -#else - LWIP_UNUSED_ARG(num_sacks); -#endif - -#ifdef LWIP_HOOK_TCP_OUT_ADD_TCPOPTS - opts = LWIP_HOOK_TCP_OUT_ADD_TCPOPTS(p, tcphdr, pcb, opts); -#endif - - LWIP_UNUSED_ARG(pcb); - LWIP_UNUSED_ARG(sacks_len); - LWIP_ASSERT("options not filled", (u8_t *)opts == ((u8_t *)(tcphdr + 1)) + sacks_len * 4 + LWIP_TCP_OPT_LENGTH_SEGMENT(optflags, pcb)); - LWIP_UNUSED_ARG(optflags); /* for LWIP_NOASSERT */ - LWIP_UNUSED_ARG(opts); /* for LWIP_NOASSERT */ -} - -/** Output a control segment pbuf to IP. - * - * Called from tcp_rst, tcp_send_empty_ack, tcp_keepalive and tcp_zero_window_probe, - * this function combines selecting a netif for transmission, generating the tcp - * header checksum and calling ip_output_if while handling netif hints and stats. - */ -static err_t -tcp_output_control_segment(const struct tcp_pcb *pcb, struct pbuf *p, - const ip_addr_t *src, const ip_addr_t *dst) -{ - err_t err; - struct netif *netif; - - LWIP_ASSERT("tcp_output_control_segment: invalid pbuf", p != NULL); - - netif = tcp_route(pcb, src, dst); - if (netif == NULL) { - err = ERR_RTE; - } else { - u8_t ttl, tos; -#if CHECKSUM_GEN_TCP - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_TCP) { - struct tcp_hdr *tcphdr = (struct tcp_hdr *)p->payload; - tcphdr->chksum = ip_chksum_pseudo(p, IP_PROTO_TCP, p->tot_len, - src, dst); - } -#endif - if (pcb != NULL) { - NETIF_SET_HINTS(netif, LWIP_CONST_CAST(struct netif_hint*, &(pcb->netif_hints))); - ttl = pcb->ttl; - tos = pcb->tos; - } else { - /* Send output with hardcoded TTL/HL since we have no access to the pcb */ - ttl = TCP_TTL; - tos = 0; - } - TCP_STATS_INC(tcp.xmit); - err = ip_output_if(p, src, dst, ttl, tos, IP_PROTO_TCP, netif); - NETIF_RESET_HINTS(netif); - } - pbuf_free(p); - return err; -} - -/** - * Send a TCP RESET packet (empty segment with RST flag set) either to - * abort a connection or to show that there is no matching local connection - * for a received segment. - * - * Called by tcp_abort() (to abort a local connection), tcp_input() (if no - * matching local pcb was found), tcp_listen_input() (if incoming segment - * has ACK flag set) and tcp_process() (received segment in the wrong state) - * - * Since a RST segment is in most cases not sent for an active connection, - * tcp_rst() has a number of arguments that are taken from a tcp_pcb for - * most other segment output functions. - * - * @param pcb TCP pcb (may be NULL if no pcb is available) - * @param seqno the sequence number to use for the outgoing segment - * @param ackno the acknowledge number to use for the outgoing segment - * @param local_ip the local IP address to send the segment from - * @param remote_ip the remote IP address to send the segment to - * @param local_port the local TCP port to send the segment from - * @param remote_port the remote TCP port to send the segment to - */ -void -tcp_rst(const struct tcp_pcb *pcb, u32_t seqno, u32_t ackno, - const ip_addr_t *local_ip, const ip_addr_t *remote_ip, - u16_t local_port, u16_t remote_port) -{ - struct pbuf *p; - u16_t wnd; - u8_t optlen; - - LWIP_ASSERT("tcp_rst: invalid local_ip", local_ip != NULL); - LWIP_ASSERT("tcp_rst: invalid remote_ip", remote_ip != NULL); - - optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(0, pcb); - -#if LWIP_WND_SCALE - wnd = PP_HTONS(((TCP_WND >> TCP_RCV_SCALE) & 0xFFFF)); -#else - wnd = PP_HTONS(TCP_WND); -#endif - - p = tcp_output_alloc_header_common(ackno, optlen, 0, lwip_htonl(seqno), local_port, - remote_port, TCP_RST | TCP_ACK, wnd); - if (p == NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_rst: could not allocate memory for pbuf\n")); - return; - } - tcp_output_fill_options(pcb, p, 0, optlen); - - MIB2_STATS_INC(mib2.tcpoutrsts); - - tcp_output_control_segment(pcb, p, local_ip, remote_ip); - LWIP_DEBUGF(TCP_RST_DEBUG, ("tcp_rst: seqno %"U32_F" ackno %"U32_F".\n", seqno, ackno)); -} - -/** - * Send an ACK without data. - * - * @param pcb Protocol control block for the TCP connection to send the ACK - */ -err_t -tcp_send_empty_ack(struct tcp_pcb *pcb) -{ - err_t err; - struct pbuf *p; - u8_t optlen, optflags = 0; - u8_t num_sacks = 0; - - LWIP_ASSERT("tcp_send_empty_ack: invalid pcb", pcb != NULL); - -#if LWIP_TCP_TIMESTAMPS - if (pcb->flags & TF_TIMESTAMP) { - optflags = TF_SEG_OPTS_TS; - } -#endif - optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(optflags, pcb); - -#if LWIP_TCP_SACK_OUT - /* For now, SACKs are only sent with empty ACKs */ - if ((num_sacks = tcp_get_num_sacks(pcb, optlen)) > 0) { - optlen += 4 + num_sacks * 8; /* 4 bytes for header (including 2*NOP), plus 8B for each SACK */ - } -#endif - - p = tcp_output_alloc_header(pcb, optlen, 0, lwip_htonl(pcb->snd_nxt)); - if (p == NULL) { - /* let tcp_fasttmr retry sending this ACK */ - tcp_set_flags(pcb, TF_ACK_DELAY | TF_ACK_NOW); - LWIP_DEBUGF(TCP_OUTPUT_DEBUG, ("tcp_output: (ACK) could not allocate pbuf\n")); - return ERR_BUF; - } - tcp_output_fill_options(pcb, p, optflags, num_sacks); - -#if LWIP_TCP_TIMESTAMPS - pcb->ts_lastacksent = pcb->rcv_nxt; -#endif - - LWIP_DEBUGF(TCP_OUTPUT_DEBUG, - ("tcp_output: sending ACK for %"U32_F"\n", pcb->rcv_nxt)); - err = tcp_output_control_segment(pcb, p, &pcb->local_ip, &pcb->remote_ip); - if (err != ERR_OK) { - /* let tcp_fasttmr retry sending this ACK */ - tcp_set_flags(pcb, TF_ACK_DELAY | TF_ACK_NOW); - } else { - /* remove ACK flags from the PCB, as we sent an empty ACK now */ - tcp_clear_flags(pcb, TF_ACK_DELAY | TF_ACK_NOW); - } - - return err; -} - -/** - * Send keepalive packets to keep a connection active although - * no data is sent over it. - * - * Called by tcp_slowtmr() - * - * @param pcb the tcp_pcb for which to send a keepalive packet - */ -err_t -tcp_keepalive(struct tcp_pcb *pcb) -{ - err_t err; - struct pbuf *p; - u8_t optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(0, pcb); - - LWIP_ASSERT("tcp_keepalive: invalid pcb", pcb != NULL); - - LWIP_DEBUGF(TCP_DEBUG, ("tcp_keepalive: sending KEEPALIVE probe to ")); - ip_addr_debug_print_val(TCP_DEBUG, pcb->remote_ip); - LWIP_DEBUGF(TCP_DEBUG, ("\n")); - - LWIP_DEBUGF(TCP_DEBUG, ("tcp_keepalive: tcp_ticks %"U32_F" pcb->tmr %"U32_F" pcb->keep_cnt_sent %"U16_F"\n", - tcp_ticks, pcb->tmr, (u16_t)pcb->keep_cnt_sent)); - - p = tcp_output_alloc_header(pcb, optlen, 0, lwip_htonl(pcb->snd_nxt - 1)); - if (p == NULL) { - LWIP_DEBUGF(TCP_DEBUG, - ("tcp_keepalive: could not allocate memory for pbuf\n")); - return ERR_MEM; - } - tcp_output_fill_options(pcb, p, 0, optlen); - err = tcp_output_control_segment(pcb, p, &pcb->local_ip, &pcb->remote_ip); - - LWIP_DEBUGF(TCP_DEBUG, ("tcp_keepalive: seqno %"U32_F" ackno %"U32_F" err %d.\n", - pcb->snd_nxt - 1, pcb->rcv_nxt, (int)err)); - return err; -} - -/** - * Send persist timer zero-window probes to keep a connection active - * when a window update is lost. - * - * Called by tcp_slowtmr() - * - * @param pcb the tcp_pcb for which to send a zero-window probe packet - */ -err_t -tcp_zero_window_probe(struct tcp_pcb *pcb) -{ - err_t err; - struct pbuf *p; - struct tcp_hdr *tcphdr; - struct tcp_seg *seg; - u16_t len; - u8_t is_fin; - u32_t snd_nxt; - u8_t optlen = LWIP_TCP_OPT_LENGTH_SEGMENT(0, pcb); - - LWIP_ASSERT("tcp_zero_window_probe: invalid pcb", pcb != NULL); - - LWIP_DEBUGF(TCP_DEBUG, ("tcp_zero_window_probe: sending ZERO WINDOW probe to ")); - ip_addr_debug_print_val(TCP_DEBUG, pcb->remote_ip); - LWIP_DEBUGF(TCP_DEBUG, ("\n")); - - LWIP_DEBUGF(TCP_DEBUG, - ("tcp_zero_window_probe: tcp_ticks %"U32_F - " pcb->tmr %"U32_F" pcb->keep_cnt_sent %"U16_F"\n", - tcp_ticks, pcb->tmr, (u16_t)pcb->keep_cnt_sent)); - - /* Only consider unsent, persist timer should be off when there is data in-flight */ - seg = pcb->unsent; - if (seg == NULL) { - /* Not expected, persist timer should be off when the send buffer is empty */ - return ERR_OK; - } - - /* increment probe count. NOTE: we record probe even if it fails - to actually transmit due to an error. This ensures memory exhaustion/ - routing problem doesn't leave a zero-window pcb as an indefinite zombie. - RTO mechanism has similar behavior, see pcb->nrtx */ - if (pcb->persist_probe < 0xFF) { - ++pcb->persist_probe; - } - - is_fin = ((TCPH_FLAGS(seg->tcphdr) & TCP_FIN) != 0) && (seg->len == 0); - /* we want to send one seqno: either FIN or data (no options) */ - len = is_fin ? 0 : 1; - - p = tcp_output_alloc_header(pcb, optlen, len, seg->tcphdr->seqno); - if (p == NULL) { - LWIP_DEBUGF(TCP_DEBUG, ("tcp_zero_window_probe: no memory for pbuf\n")); - return ERR_MEM; - } - tcphdr = (struct tcp_hdr *)p->payload; - - if (is_fin) { - /* FIN segment, no data */ - TCPH_FLAGS_SET(tcphdr, TCP_ACK | TCP_FIN); - } else { - /* Data segment, copy in one byte from the head of the unacked queue */ - char *d = ((char *)p->payload + TCP_HLEN); - /* Depending on whether the segment has already been sent (unacked) or not - (unsent), seg->p->payload points to the IP header or TCP header. - Ensure we copy the first TCP data byte: */ - pbuf_copy_partial(seg->p, d, 1, seg->p->tot_len - seg->len); - } - - /* The byte may be acknowledged without the window being opened. */ - snd_nxt = lwip_ntohl(seg->tcphdr->seqno) + 1; - if (TCP_SEQ_LT(pcb->snd_nxt, snd_nxt)) { - pcb->snd_nxt = snd_nxt; - } - tcp_output_fill_options(pcb, p, 0, optlen); - - err = tcp_output_control_segment(pcb, p, &pcb->local_ip, &pcb->remote_ip); - - LWIP_DEBUGF(TCP_DEBUG, ("tcp_zero_window_probe: seqno %"U32_F - " ackno %"U32_F" err %d.\n", - pcb->snd_nxt - 1, pcb->rcv_nxt, (int)err)); - return err; -} -#endif /* LWIP_TCP */ diff --git a/core/c/core/timeouts.c b/core/c/core/timeouts.c deleted file mode 100755 index c3431e8..0000000 --- a/core/c/core/timeouts.c +++ /dev/null @@ -1,451 +0,0 @@ -/** - * @file - * Stack-internal timers implementation. - * This file includes timer callbacks for stack-internal timers as well as - * functions to set up or stop timers and check for expired timers. - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * Simon Goldschmidt - * - */ - -#include "lwip/opt.h" - -#include "lwip/timeouts.h" -#include "lwip/priv/tcp_priv.h" - -#include "lwip/def.h" -#include "lwip/memp.h" -#include "lwip/priv/tcpip_priv.h" - -#include "lwip/ip4_frag.h" -#include "lwip/etharp.h" -#include "lwip/dhcp.h" -#include "lwip/autoip.h" -#include "lwip/igmp.h" -#include "lwip/dns.h" -#include "lwip/nd6.h" -#include "lwip/ip6_frag.h" -#include "lwip/mld6.h" -#include "lwip/dhcp6.h" -#include "lwip/sys.h" -#include "lwip/pbuf.h" - -#if LWIP_DEBUG_TIMERNAMES -#define HANDLER(x) x, #x -#else /* LWIP_DEBUG_TIMERNAMES */ -#define HANDLER(x) x -#endif /* LWIP_DEBUG_TIMERNAMES */ - -#define LWIP_MAX_TIMEOUT 0x7fffffff - -/* Check if timer's expiry time is greater than time and care about u32_t wraparounds */ -#define TIME_LESS_THAN(t, compare_to) ( (((u32_t)((t)-(compare_to))) > LWIP_MAX_TIMEOUT) ? 1 : 0 ) - -/** This array contains all stack-internal cyclic timers. To get the number of - * timers, use LWIP_ARRAYSIZE() */ -const struct lwip_cyclic_timer lwip_cyclic_timers[] = { -#if LWIP_TCP - /* The TCP timer is a special case: it does not have to run always and - is triggered to start from TCP using tcp_timer_needed() */ - {TCP_TMR_INTERVAL, HANDLER(tcp_tmr)}, -#endif /* LWIP_TCP */ -#if LWIP_IPV4 -#if IP_REASSEMBLY - {IP_TMR_INTERVAL, HANDLER(ip_reass_tmr)}, -#endif /* IP_REASSEMBLY */ -#if LWIP_ARP - {ARP_TMR_INTERVAL, HANDLER(etharp_tmr)}, -#endif /* LWIP_ARP */ -#if LWIP_DHCP - {DHCP_COARSE_TIMER_MSECS, HANDLER(dhcp_coarse_tmr)}, - {DHCP_FINE_TIMER_MSECS, HANDLER(dhcp_fine_tmr)}, -#endif /* LWIP_DHCP */ -#if LWIP_AUTOIP - {AUTOIP_TMR_INTERVAL, HANDLER(autoip_tmr)}, -#endif /* LWIP_AUTOIP */ -#if LWIP_IGMP - {IGMP_TMR_INTERVAL, HANDLER(igmp_tmr)}, -#endif /* LWIP_IGMP */ -#endif /* LWIP_IPV4 */ -#if LWIP_DNS - {DNS_TMR_INTERVAL, HANDLER(dns_tmr)}, -#endif /* LWIP_DNS */ -#if LWIP_IPV6 - {ND6_TMR_INTERVAL, HANDLER(nd6_tmr)}, -#if LWIP_IPV6_REASS - {IP6_REASS_TMR_INTERVAL, HANDLER(ip6_reass_tmr)}, -#endif /* LWIP_IPV6_REASS */ -#if LWIP_IPV6_MLD - {MLD6_TMR_INTERVAL, HANDLER(mld6_tmr)}, -#endif /* LWIP_IPV6_MLD */ -#if LWIP_IPV6_DHCP6 - {DHCP6_TIMER_MSECS, HANDLER(dhcp6_tmr)}, -#endif /* LWIP_IPV6_DHCP6 */ -#endif /* LWIP_IPV6 */ -}; -const int lwip_num_cyclic_timers = LWIP_ARRAYSIZE(lwip_cyclic_timers); - -#if LWIP_TIMERS && !LWIP_TIMERS_CUSTOM - -/** The one and only timeout list */ -static struct sys_timeo *next_timeout; - -static u32_t current_timeout_due_time; - -#if LWIP_TESTMODE -struct sys_timeo** -sys_timeouts_get_next_timeout(void) -{ - return &next_timeout; -} -#endif - -#if LWIP_TCP -/** global variable that shows if the tcp timer is currently scheduled or not */ -static int tcpip_tcp_timer_active; - -/** - * Timer callback function that calls tcp_tmr() and reschedules itself. - * - * @param arg unused argument - */ -static void -tcpip_tcp_timer(void *arg) -{ - LWIP_UNUSED_ARG(arg); - - /* call TCP timer handler */ - tcp_tmr(); - /* timer still needed? */ - if (tcp_active_pcbs || tcp_tw_pcbs) { - /* restart timer */ - sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL); - } else { - /* disable timer */ - tcpip_tcp_timer_active = 0; - } -} - -/** - * Called from TCP_REG when registering a new PCB: - * the reason is to have the TCP timer only running when - * there are active (or time-wait) PCBs. - */ -void -tcp_timer_needed(void) -{ - LWIP_ASSERT_CORE_LOCKED(); - - /* timer is off but needed again? */ - if (!tcpip_tcp_timer_active && (tcp_active_pcbs || tcp_tw_pcbs)) { - /* enable and start timer */ - tcpip_tcp_timer_active = 1; - sys_timeout(TCP_TMR_INTERVAL, tcpip_tcp_timer, NULL); - } -} -#endif /* LWIP_TCP */ - -static void -#if LWIP_DEBUG_TIMERNAMES -sys_timeout_abs(u32_t abs_time, sys_timeout_handler handler, void *arg, const char *handler_name) -#else /* LWIP_DEBUG_TIMERNAMES */ -sys_timeout_abs(u32_t abs_time, sys_timeout_handler handler, void *arg) -#endif -{ - struct sys_timeo *timeout, *t; - - timeout = (struct sys_timeo *)memp_malloc(MEMP_SYS_TIMEOUT); - if (timeout == NULL) { - LWIP_ASSERT("sys_timeout: timeout != NULL, pool MEMP_SYS_TIMEOUT is empty", timeout != NULL); - return; - } - - timeout->next = NULL; - timeout->h = handler; - timeout->arg = arg; - timeout->time = abs_time; - -#if LWIP_DEBUG_TIMERNAMES - timeout->handler_name = handler_name; - LWIP_DEBUGF(TIMERS_DEBUG, ("sys_timeout: %p abs_time=%"U32_F" handler=%s arg=%p\n", - (void *)timeout, abs_time, handler_name, (void *)arg)); -#endif /* LWIP_DEBUG_TIMERNAMES */ - - if (next_timeout == NULL) { - next_timeout = timeout; - return; - } - if (TIME_LESS_THAN(timeout->time, next_timeout->time)) { - timeout->next = next_timeout; - next_timeout = timeout; - } else { - for (t = next_timeout; t != NULL; t = t->next) { - if ((t->next == NULL) || TIME_LESS_THAN(timeout->time, t->next->time)) { - timeout->next = t->next; - t->next = timeout; - break; - } - } - } -} - -/** - * Timer callback function that calls cyclic->handler() and reschedules itself. - * - * @param arg unused argument - */ -#if !LWIP_TESTMODE -static -#endif -void -lwip_cyclic_timer(void *arg) -{ - u32_t now; - u32_t next_timeout_time; - const struct lwip_cyclic_timer *cyclic = (const struct lwip_cyclic_timer *)arg; - -#if LWIP_DEBUG_TIMERNAMES - LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: %s()\n", cyclic->handler_name)); -#endif - cyclic->handler(); - - now = sys_now(); - next_timeout_time = (u32_t)(current_timeout_due_time + cyclic->interval_ms); /* overflow handled by TIME_LESS_THAN macro */ - if (TIME_LESS_THAN(next_timeout_time, now)) { - /* timer would immediately expire again -> "overload" -> restart without any correction */ -#if LWIP_DEBUG_TIMERNAMES - sys_timeout_abs((u32_t)(now + cyclic->interval_ms), lwip_cyclic_timer, arg, cyclic->handler_name); -#else - sys_timeout_abs((u32_t)(now + cyclic->interval_ms), lwip_cyclic_timer, arg); -#endif - - } else { - /* correct cyclic interval with handler execution delay and sys_check_timeouts jitter */ -#if LWIP_DEBUG_TIMERNAMES - sys_timeout_abs(next_timeout_time, lwip_cyclic_timer, arg, cyclic->handler_name); -#else - sys_timeout_abs(next_timeout_time, lwip_cyclic_timer, arg); -#endif - } -} - -/** Initialize this module */ -void sys_timeouts_init(void) -{ - size_t i; - /* tcp_tmr() at index 0 is started on demand */ - for (i = (LWIP_TCP ? 1 : 0); i < LWIP_ARRAYSIZE(lwip_cyclic_timers); i++) { - /* we have to cast via size_t to get rid of const warning - (this is OK as cyclic_timer() casts back to const* */ - sys_timeout(lwip_cyclic_timers[i].interval_ms, lwip_cyclic_timer, LWIP_CONST_CAST(void *, &lwip_cyclic_timers[i])); - } -} - -/** - * Create a one-shot timer (aka timeout). Timeouts are processed in the - * following cases: - * - while waiting for a message using sys_timeouts_mbox_fetch() - * - by calling sys_check_timeouts() (NO_SYS==1 only) - * - * @param msecs time in milliseconds after that the timer should expire - * @param handler callback function to call when msecs have elapsed - * @param arg argument to pass to the callback function - */ -#if LWIP_DEBUG_TIMERNAMES -void -sys_timeout_debug(u32_t msecs, sys_timeout_handler handler, void *arg, const char *handler_name) -#else /* LWIP_DEBUG_TIMERNAMES */ -void -sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg) -#endif /* LWIP_DEBUG_TIMERNAMES */ -{ - u32_t next_timeout_time; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ASSERT("Timeout time too long, max is LWIP_UINT32_MAX/4 msecs", msecs <= (LWIP_UINT32_MAX / 4)); - - next_timeout_time = (u32_t)(sys_now() + msecs); /* overflow handled by TIME_LESS_THAN macro */ - -#if LWIP_DEBUG_TIMERNAMES - sys_timeout_abs(next_timeout_time, handler, arg, handler_name); -#else - sys_timeout_abs(next_timeout_time, handler, arg); -#endif -} - -/** - * Go through timeout list (for this task only) and remove the first matching - * entry (subsequent entries remain untouched), even though the timeout has not - * triggered yet. - * - * @param handler callback function that would be called by the timeout - * @param arg callback argument that would be passed to handler -*/ -void -sys_untimeout(sys_timeout_handler handler, void *arg) -{ - struct sys_timeo *prev_t, *t; - - LWIP_ASSERT_CORE_LOCKED(); - - if (next_timeout == NULL) { - return; - } - - for (t = next_timeout, prev_t = NULL; t != NULL; prev_t = t, t = t->next) { - if ((t->h == handler) && (t->arg == arg)) { - /* We have a match */ - /* Unlink from previous in list */ - if (prev_t == NULL) { - next_timeout = t->next; - } else { - prev_t->next = t->next; - } - memp_free(MEMP_SYS_TIMEOUT, t); - return; - } - } - return; -} - -/** - * @ingroup lwip_nosys - * Handle timeouts for NO_SYS==1 (i.e. without using - * tcpip_thread/sys_timeouts_mbox_fetch(). Uses sys_now() to call timeout - * handler functions when timeouts expire. - * - * Must be called periodically from your main loop. - */ -void -sys_check_timeouts(void) -{ - u32_t now; - - LWIP_ASSERT_CORE_LOCKED(); - - /* Process only timers expired at the start of the function. */ - now = sys_now(); - - do { - struct sys_timeo *tmptimeout; - sys_timeout_handler handler; - void *arg; - - PBUF_CHECK_FREE_OOSEQ(); - - tmptimeout = next_timeout; - if (tmptimeout == NULL) { - return; - } - - if (TIME_LESS_THAN(now, tmptimeout->time)) { - return; - } - - /* Timeout has expired */ - next_timeout = tmptimeout->next; - handler = tmptimeout->h; - arg = tmptimeout->arg; - current_timeout_due_time = tmptimeout->time; -#if LWIP_DEBUG_TIMERNAMES - if (handler != NULL) { - LWIP_DEBUGF(TIMERS_DEBUG, ("sct calling h=%s t=%"U32_F" arg=%p\n", - tmptimeout->handler_name, sys_now() - tmptimeout->time, arg)); - } -#endif /* LWIP_DEBUG_TIMERNAMES */ - memp_free(MEMP_SYS_TIMEOUT, tmptimeout); - if (handler != NULL) { - handler(arg); - } - LWIP_TCPIP_THREAD_ALIVE(); - - /* Repeat until all expired timers have been called */ - } while (1); -} - -/** Rebase the timeout times to the current time. - * This is necessary if sys_check_timeouts() hasn't been called for a long - * time (e.g. while saving energy) to prevent all timer functions of that - * period being called. - */ -void -sys_restart_timeouts(void) -{ - u32_t now; - u32_t base; - struct sys_timeo *t; - - if (next_timeout == NULL) { - return; - } - - now = sys_now(); - base = next_timeout->time; - - for (t = next_timeout; t != NULL; t = t->next) { - t->time = (t->time - base) + now; - } -} - -/** Return the time left before the next timeout is due. If no timeouts are - * enqueued, returns 0xffffffff - */ -u32_t -sys_timeouts_sleeptime(void) -{ - u32_t now; - - LWIP_ASSERT_CORE_LOCKED(); - - if (next_timeout == NULL) { - return SYS_TIMEOUTS_SLEEPTIME_INFINITE; - } - now = sys_now(); - if (TIME_LESS_THAN(next_timeout->time, now)) { - return 0; - } else { - u32_t ret = (u32_t)(next_timeout->time - now); - LWIP_ASSERT("invalid sleeptime", ret <= LWIP_MAX_TIMEOUT); - return ret; - } -} - -#else /* LWIP_TIMERS && !LWIP_TIMERS_CUSTOM */ -/* Satisfy the TCP code which calls this function */ -void -tcp_timer_needed(void) -{ -} -#endif /* LWIP_TIMERS && !LWIP_TIMERS_CUSTOM */ diff --git a/core/c/core/udp.c b/core/c/core/udp.c deleted file mode 100755 index 95bbec3..0000000 --- a/core/c/core/udp.c +++ /dev/null @@ -1,1424 +0,0 @@ -/** - * @file - * User Datagram Protocol module\n - * The code for the User Datagram Protocol UDP & UDPLite (RFC 3828).\n - * See also @ref udp_raw - * - * @defgroup udp_raw UDP - * @ingroup callbackstyle_api - * User Datagram Protocol module\n - * @see @ref api - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -/* @todo Check the use of '(struct udp_pcb).chksum_len_rx'! - */ - -#include "lwip/opt.h" - -#if LWIP_UDP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/udp.h" -#include "lwip/def.h" -#include "lwip/memp.h" -#include "lwip/inet_chksum.h" -#include "lwip/ip_addr.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#include "lwip/netif.h" -#include "lwip/icmp.h" -#include "lwip/icmp6.h" -#include "lwip/stats.h" -#include "lwip/snmp.h" -#include "lwip/dhcp.h" - -#include - -#ifndef UDP_LOCAL_PORT_RANGE_START -/* From http://www.iana.org/assignments/port-numbers: - "The Dynamic and/or Private Ports are those from 49152 through 65535" */ -#define UDP_LOCAL_PORT_RANGE_START 0xc000 -#define UDP_LOCAL_PORT_RANGE_END 0xffff -#define UDP_ENSURE_LOCAL_PORT_RANGE(port) ((u16_t)(((port) & (u16_t)~UDP_LOCAL_PORT_RANGE_START) + UDP_LOCAL_PORT_RANGE_START)) -#endif - -/* last local UDP port */ -static u16_t udp_port = UDP_LOCAL_PORT_RANGE_START; - -/* The list of UDP PCBs */ -/* exported in udp.h (was static) */ -struct udp_pcb *udp_pcbs; - -/** - * Initialize this module. - */ -void -udp_init(void) -{ -#ifdef LWIP_RAND - udp_port = UDP_ENSURE_LOCAL_PORT_RANGE(LWIP_RAND()); -#endif /* LWIP_RAND */ -} - -/** - * Allocate a new local UDP port. - * - * @return a new (free) local UDP port number - */ -static u16_t -udp_new_port(void) -{ - u16_t n = 0; - struct udp_pcb *pcb; - -again: - if (udp_port++ == UDP_LOCAL_PORT_RANGE_END) { - udp_port = UDP_LOCAL_PORT_RANGE_START; - } - /* Check all PCBs. */ - for (pcb = udp_pcbs; pcb != NULL; pcb = pcb->next) { - if (pcb->local_port == udp_port) { - if (++n > (UDP_LOCAL_PORT_RANGE_END - UDP_LOCAL_PORT_RANGE_START)) { - return 0; - } - goto again; - } - } - return udp_port; -} - -/** Common code to see if the current input packet matches the pcb - * (current input packet is accessed via ip(4/6)_current_* macros) - * - * @param pcb pcb to check - * @param inp network interface on which the datagram was received (only used for IPv4) - * @param broadcast 1 if his is an IPv4 broadcast (global or subnet-only), 0 otherwise (only used for IPv4) - * @return 1 on match, 0 otherwise - */ -static u8_t -udp_input_local_match(struct udp_pcb *pcb, struct netif *inp, u8_t broadcast) -{ - LWIP_UNUSED_ARG(inp); /* in IPv6 only case */ - LWIP_UNUSED_ARG(broadcast); /* in IPv6 only case */ - - LWIP_ASSERT("udp_input_local_match: invalid pcb", pcb != NULL); - LWIP_ASSERT("udp_input_local_match: invalid netif", inp != NULL); - - /* check if PCB is bound to specific netif */ - if ((pcb->netif_idx != NETIF_NO_INDEX) && - (pcb->netif_idx != netif_get_index(ip_data.current_input_netif))) { - return 0; - } - - /* Dual-stack: PCBs listening to any IP type also listen to any IP address */ - if (IP_IS_ANY_TYPE_VAL(pcb->local_ip)) { -#if LWIP_IPV4 && IP_SOF_BROADCAST_RECV - if ((broadcast != 0) && !ip_get_option(pcb, SOF_BROADCAST)) { - return 0; - } -#endif /* LWIP_IPV4 && IP_SOF_BROADCAST_RECV */ - return 1; - } - - /* Only need to check PCB if incoming IP version matches PCB IP version */ - if (IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ip_current_dest_addr())) { -#if LWIP_IPV4 - /* Special case: IPv4 broadcast: all or broadcasts in my subnet - * Note: broadcast variable can only be 1 if it is an IPv4 broadcast */ - if (broadcast != 0) { -#if IP_SOF_BROADCAST_RECV - if (ip_get_option(pcb, SOF_BROADCAST)) -#endif /* IP_SOF_BROADCAST_RECV */ - { - if (ip4_addr_isany(ip_2_ip4(&pcb->local_ip)) || - ((ip4_current_dest_addr()->addr == IPADDR_BROADCAST)) || - ip4_addr_netcmp(ip_2_ip4(&pcb->local_ip), ip4_current_dest_addr(), netif_ip4_netmask(inp))) { - return 1; - } - } - } else -#endif /* LWIP_IPV4 */ - /* Handle IPv4 and IPv6: all or exact match */ - if (ip_addr_isany(&pcb->local_ip) || ip_addr_cmp(&pcb->local_ip, ip_current_dest_addr())) { - return 1; - } - } - - return 0; -} - -/** - * Process an incoming UDP datagram. - * - * Given an incoming UDP datagram (as a chain of pbufs) this function - * finds a corresponding UDP PCB and hands over the pbuf to the pcbs - * recv function. If no pcb is found or the datagram is incorrect, the - * pbuf is freed. - * - * @param p pbuf to be demultiplexed to a UDP PCB (p->payload pointing to the UDP header) - * @param inp network interface on which the datagram was received. - * - */ -void -udp_input(struct pbuf *p, struct netif *inp) -{ - struct udp_hdr *udphdr; - struct udp_pcb *pcb, *prev; - struct udp_pcb *uncon_pcb; - u16_t src, dest; - u8_t broadcast; - u8_t for_us = 0; - - LWIP_UNUSED_ARG(inp); - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ASSERT("udp_input: invalid pbuf", p != NULL); - LWIP_ASSERT("udp_input: invalid netif", inp != NULL); - - PERF_START; - - UDP_STATS_INC(udp.recv); - - /* Check minimum length (UDP header) */ - if (p->len < UDP_HLEN) { - /* drop short packets */ - LWIP_DEBUGF(UDP_DEBUG, - ("udp_input: short UDP datagram (%"U16_F" bytes) discarded\n", p->tot_len)); - UDP_STATS_INC(udp.lenerr); - UDP_STATS_INC(udp.drop); - MIB2_STATS_INC(mib2.udpinerrors); - pbuf_free(p); - goto end; - } - - udphdr = (struct udp_hdr *)p->payload; - - /* is broadcast packet ? */ - broadcast = ip_addr_isbroadcast(ip_current_dest_addr(), ip_current_netif()); - - LWIP_DEBUGF(UDP_DEBUG, ("udp_input: received datagram of length %"U16_F"\n", p->tot_len)); - - /* convert src and dest ports to host byte order */ - src = lwip_ntohs(udphdr->src); - dest = lwip_ntohs(udphdr->dest); - - udp_debug_print(udphdr); - - /* print the UDP source and destination */ - LWIP_DEBUGF(UDP_DEBUG, ("udp (")); - ip_addr_debug_print_val(UDP_DEBUG, *ip_current_dest_addr()); - LWIP_DEBUGF(UDP_DEBUG, (", %"U16_F") <-- (", lwip_ntohs(udphdr->dest))); - ip_addr_debug_print_val(UDP_DEBUG, *ip_current_src_addr()); - LWIP_DEBUGF(UDP_DEBUG, (", %"U16_F")\n", lwip_ntohs(udphdr->src))); - - pcb = NULL; - prev = NULL; - uncon_pcb = NULL; - /* Iterate through the UDP pcb list for a matching pcb. - * 'Perfect match' pcbs (connected to the remote port & ip address) are - * preferred. If no perfect match is found, the first unconnected pcb that - * matches the local port and ip address gets the datagram. */ - for (pcb = udp_pcbs; pcb != NULL; pcb = pcb->next) { - -#if TUN2SOCKS - // go-tun2socks logic - // take the first one, library users are responsible for creating that pcb - break; -#endif /* TUN2SOCKS */ - - /* print the PCB local and remote address */ - LWIP_DEBUGF(UDP_DEBUG, ("pcb (")); - ip_addr_debug_print_val(UDP_DEBUG, pcb->local_ip); - LWIP_DEBUGF(UDP_DEBUG, (", %"U16_F") <-- (", pcb->local_port)); - ip_addr_debug_print_val(UDP_DEBUG, pcb->remote_ip); - LWIP_DEBUGF(UDP_DEBUG, (", %"U16_F")\n", pcb->remote_port)); - - /* compare PCB local addr+port to UDP destination addr+port */ - if ((pcb->local_port == dest) && - (udp_input_local_match(pcb, inp, broadcast) != 0)) { - if ((pcb->flags & UDP_FLAGS_CONNECTED) == 0) { - if (uncon_pcb == NULL) { - /* the first unconnected matching PCB */ - uncon_pcb = pcb; -#if LWIP_IPV4 - } else if (broadcast && ip4_current_dest_addr()->addr == IPADDR_BROADCAST) { - /* global broadcast address (only valid for IPv4; match was checked before) */ - if (!IP_IS_V4_VAL(uncon_pcb->local_ip) || !ip4_addr_cmp(ip_2_ip4(&uncon_pcb->local_ip), netif_ip4_addr(inp))) { - /* uncon_pcb does not match the input netif, check this pcb */ - if (IP_IS_V4_VAL(pcb->local_ip) && ip4_addr_cmp(ip_2_ip4(&pcb->local_ip), netif_ip4_addr(inp))) { - /* better match */ - uncon_pcb = pcb; - } - } -#endif /* LWIP_IPV4 */ - } -#if SO_REUSE - else if (!ip_addr_isany(&pcb->local_ip)) { - /* prefer specific IPs over catch-all */ - uncon_pcb = pcb; - } -#endif /* SO_REUSE */ - } - - /* compare PCB remote addr+port to UDP source addr+port */ - if ((pcb->remote_port == src) && - (ip_addr_isany_val(pcb->remote_ip) || - ip_addr_cmp(&pcb->remote_ip, ip_current_src_addr()))) { - /* the first fully matching PCB */ - if (prev != NULL) { - /* move the pcb to the front of udp_pcbs so that is - found faster next time */ - prev->next = pcb->next; - pcb->next = udp_pcbs; - udp_pcbs = pcb; - } else { - UDP_STATS_INC(udp.cachehit); - } - break; - } - } - - prev = pcb; - } - /* no fully matching pcb found? then look for an unconnected pcb */ - if (pcb == NULL) { - pcb = uncon_pcb; - } - - /* Check checksum if this is a match or if it was directed at us. */ - if (pcb != NULL) { - for_us = 1; - } else { -#if LWIP_IPV6 - if (ip_current_is_v6()) { - for_us = netif_get_ip6_addr_match(inp, ip6_current_dest_addr()) >= 0; - } -#endif /* LWIP_IPV6 */ -#if LWIP_IPV4 - if (!ip_current_is_v6()) { - for_us = ip4_addr_cmp(netif_ip4_addr(inp), ip4_current_dest_addr()); - } -#endif /* LWIP_IPV4 */ - } - - if (for_us) { - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_input: calculating checksum\n")); -#if CHECKSUM_CHECK_UDP - IF__NETIF_CHECKSUM_ENABLED(inp, NETIF_CHECKSUM_CHECK_UDP) { -#if LWIP_UDPLITE - if (ip_current_header_proto() == IP_PROTO_UDPLITE) { - /* Do the UDP Lite checksum */ - u16_t chklen = lwip_ntohs(udphdr->len); - if (chklen < sizeof(struct udp_hdr)) { - if (chklen == 0) { - /* For UDP-Lite, checksum length of 0 means checksum - over the complete packet (See RFC 3828 chap. 3.1) */ - chklen = p->tot_len; - } else { - /* At least the UDP-Lite header must be covered by the - checksum! (Again, see RFC 3828 chap. 3.1) */ - goto chkerr; - } - } - if (ip_chksum_pseudo_partial(p, IP_PROTO_UDPLITE, - p->tot_len, chklen, - ip_current_src_addr(), ip_current_dest_addr()) != 0) { - goto chkerr; - } - } else -#endif /* LWIP_UDPLITE */ - { - if (udphdr->chksum != 0) { - if (ip_chksum_pseudo(p, IP_PROTO_UDP, p->tot_len, - ip_current_src_addr(), - ip_current_dest_addr()) != 0) { - goto chkerr; - } - } - } - } -#endif /* CHECKSUM_CHECK_UDP */ - if (pbuf_remove_header(p, UDP_HLEN)) { - /* Can we cope with this failing? Just assert for now */ - LWIP_ASSERT("pbuf_remove_header failed\n", 0); - UDP_STATS_INC(udp.drop); - MIB2_STATS_INC(mib2.udpinerrors); - pbuf_free(p); - goto end; - } - - if (pcb != NULL) { - MIB2_STATS_INC(mib2.udpindatagrams); -#if SO_REUSE && SO_REUSE_RXTOALL - if (ip_get_option(pcb, SOF_REUSEADDR) && - (broadcast || ip_addr_ismulticast(ip_current_dest_addr()))) { - /* pass broadcast- or multicast packets to all multicast pcbs - if SOF_REUSEADDR is set on the first match */ - struct udp_pcb *mpcb; - for (mpcb = udp_pcbs; mpcb != NULL; mpcb = mpcb->next) { - if (mpcb != pcb) { - /* compare PCB local addr+port to UDP destination addr+port */ - if ((mpcb->local_port == dest) && - (udp_input_local_match(mpcb, inp, broadcast) != 0)) { - /* pass a copy of the packet to all local matches */ - if (mpcb->recv != NULL) { - struct pbuf *q; - q = pbuf_clone(PBUF_RAW, PBUF_POOL, p); - if (q != NULL) { - mpcb->recv(mpcb->recv_arg, mpcb, q, ip_current_src_addr(), src); - } - } - } - } - } - } -#endif /* SO_REUSE && SO_REUSE_RXTOALL */ - /* callback */ - if (pcb->recv != NULL) { -#if TUN2SOCKS - // go-tun2socks logic - // Since we are accepting all udp datagrams using the default netif and - // and the default pcb, and the address of the default pcb need not to match - // the packet's dest address in tun2socks, our application will never - // know what are the original dest address and port if we don't pass them - // to the recv callback. - pcb->recv(pcb->recv_arg, pcb, p, ip_current_src_addr(), src, ip_current_dest_addr(), dest); -#else - /* now the recv function is responsible for freeing p */ - pcb->recv(pcb->recv_arg, pcb, p, ip_current_src_addr(), src); -#endif /* TUN2SOCKS */ - } else { - /* no recv function registered? then we have to free the pbuf! */ - pbuf_free(p); - goto end; - } - } else { - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_input: not for us.\n")); - -#if LWIP_ICMP || LWIP_ICMP6 - /* No match was found, send ICMP destination port unreachable unless - destination address was broadcast/multicast. */ - if (!broadcast && !ip_addr_ismulticast(ip_current_dest_addr())) { - /* move payload pointer back to ip header */ - pbuf_header_force(p, (s16_t)(ip_current_header_tot_len() + UDP_HLEN)); - icmp_port_unreach(ip_current_is_v6(), p); - } -#endif /* LWIP_ICMP || LWIP_ICMP6 */ - UDP_STATS_INC(udp.proterr); - UDP_STATS_INC(udp.drop); - MIB2_STATS_INC(mib2.udpnoports); - pbuf_free(p); - } - } else { - pbuf_free(p); - } -end: - PERF_STOP("udp_input"); - return; -#if CHECKSUM_CHECK_UDP -chkerr: - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("udp_input: UDP (or UDP Lite) datagram discarded due to failing checksum\n")); - UDP_STATS_INC(udp.chkerr); - UDP_STATS_INC(udp.drop); - MIB2_STATS_INC(mib2.udpinerrors); - pbuf_free(p); - PERF_STOP("udp_input"); -#endif /* CHECKSUM_CHECK_UDP */ -} - -/** - * @ingroup udp_raw - * Sends the pbuf p using UDP. The pbuf is not deallocated. - * - * - * @param pcb UDP PCB used to send the data. - * @param p chain of pbuf's to be sent. - * - * The datagram will be sent to the current remote_ip & remote_port - * stored in pcb. If the pcb is not bound to a port, it will - * automatically be bound to a random port. - * - * @return lwIP error code. - * - ERR_OK. Successful. No error occurred. - * - ERR_MEM. Out of memory. - * - ERR_RTE. Could not find route to destination address. - * - ERR_VAL. No PCB or PCB is dual-stack - * - More errors could be returned by lower protocol layers. - * - * @see udp_disconnect() udp_sendto() - */ -err_t -udp_send(struct udp_pcb *pcb, struct pbuf *p) -{ - LWIP_ERROR("udp_send: invalid pcb", pcb != NULL, return ERR_ARG); - LWIP_ERROR("udp_send: invalid pbuf", p != NULL, return ERR_ARG); - - if (IP_IS_ANY_TYPE_VAL(pcb->remote_ip)) { - return ERR_VAL; - } - -#if TUN2SOCKS - /* tun2socks should never use udp_send(), use udp_sendto() directly instead */ - return ERR_OK; -#else - /* send to the packet using remote ip and port stored in the pcb */ - return udp_sendto(pcb, p, &pcb->remote_ip, pcb->remote_port); -#endif /* TUN2SOCKS */ -} - -#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP -/** @ingroup udp_raw - * Same as udp_send() but with checksum - */ -err_t -udp_send_chksum(struct udp_pcb *pcb, struct pbuf *p, - u8_t have_chksum, u16_t chksum) -{ - LWIP_ERROR("udp_send_chksum: invalid pcb", pcb != NULL, return ERR_ARG); - LWIP_ERROR("udp_send_chksum: invalid pbuf", p != NULL, return ERR_ARG); - - if (IP_IS_ANY_TYPE_VAL(pcb->remote_ip)) { - return ERR_VAL; - } - -#if TUN2SOCKS - /* tun2socks should never use udp_send(), use udp_sendto_chksum() directly instead */ - return ERR_OK; -#else - /* send to the packet using remote ip and port stored in the pcb */ - return udp_sendto_chksum(pcb, p, &pcb->remote_ip, pcb->remote_port, - have_chksum, chksum); -#endif /* TUN2SOCKS */ -} -#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ - -/** - * @ingroup udp_raw - * Send data to a specified address using UDP. - * - * @param pcb UDP PCB used to send the data. - * @param p chain of pbuf's to be sent. - * @param dst_ip Destination IP address. - * @param dst_port Destination UDP port. - * - * dst_ip & dst_port are expected to be in the same byte order as in the pcb. - * - * If the PCB already has a remote address association, it will - * be restored after the data is sent. - * - * @return lwIP error code (@see udp_send for possible error codes) - * - * @see udp_disconnect() udp_send() - */ -#if TUN2SOCKS -err_t -udp_sendto(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, const ip_addr_t *src_ip, u16_t src_port) -{ -#else -err_t -udp_sendto(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port) -{ -#endif /* TUN2SOCKS */ -#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP -#if TUN2SOCKS - return udp_sendto_chksum(pcb, p, dst_ip, dst_port, 0, 0, src_ip, src_port); -} - -/** @ingroup udp_raw - * Same as udp_sendto(), but with checksum */ -err_t -udp_sendto_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, - u16_t dst_port, u8_t have_chksum, u16_t chksum, const ip_addr_t *src_ip, u16_t src_port) -{ -#else - return udp_sendto_chksum(pcb, p, dst_ip, dst_port, 0, 0); -} - -/** @ingroup udp_raw - * Same as udp_sendto(), but with checksum */ -err_t -udp_sendto_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, - u16_t dst_port, u8_t have_chksum, u16_t chksum) -{ -#endif /* TUN2SOCKS */ -#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ - struct netif *netif; - - LWIP_ERROR("udp_sendto: invalid pcb", pcb != NULL, return ERR_ARG); - LWIP_ERROR("udp_sendto: invalid pbuf", p != NULL, return ERR_ARG); - LWIP_ERROR("udp_sendto: invalid dst_ip", dst_ip != NULL, return ERR_ARG); - - if (!IP_ADDR_PCB_VERSION_MATCH(pcb, dst_ip)) { - return ERR_VAL; - } - - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_send\n")); - - if (pcb->netif_idx != NETIF_NO_INDEX) { - netif = netif_get_by_index(pcb->netif_idx); - } else { -#if LWIP_MULTICAST_TX_OPTIONS - netif = NULL; - if (ip_addr_ismulticast(dst_ip)) { - /* For IPv6, the interface to use for packets with a multicast destination - * is specified using an interface index. The same approach may be used for - * IPv4 as well, in which case it overrides the IPv4 multicast override - * address below. Here we have to look up the netif by going through the - * list, but by doing so we skip a route lookup. If the interface index has - * gone stale, we fall through and do the regular route lookup after all. */ - if (pcb->mcast_ifindex != NETIF_NO_INDEX) { - netif = netif_get_by_index(pcb->mcast_ifindex); - } -#if LWIP_IPV4 - else -#if LWIP_IPV6 - if (IP_IS_V4(dst_ip)) -#endif /* LWIP_IPV6 */ - { - /* IPv4 does not use source-based routing by default, so we use an - administratively selected interface for multicast by default. - However, this can be overridden by setting an interface address - in pcb->mcast_ip4 that is used for routing. If this routing lookup - fails, we try regular routing as though no override was set. */ - if (!ip4_addr_isany_val(pcb->mcast_ip4) && - !ip4_addr_cmp(&pcb->mcast_ip4, IP4_ADDR_BROADCAST)) { - netif = ip4_route_src(ip_2_ip4(&pcb->local_ip), &pcb->mcast_ip4); - } - } -#endif /* LWIP_IPV4 */ - } - - if (netif == NULL) -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - { - /* find the outgoing network interface for this packet */ - netif = ip_route(&pcb->local_ip, dst_ip); - } - } - - /* no outgoing network interface could be found? */ - if (netif == NULL) { - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, ("udp_send: No route to ")); - ip_addr_debug_print(UDP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, dst_ip); - LWIP_DEBUGF(UDP_DEBUG, ("\n")); - UDP_STATS_INC(udp.rterr); - return ERR_RTE; - } -#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP -#if TUN2SOCKS - return udp_sendto_if_chksum(pcb, p, dst_ip, dst_port, netif, have_chksum, chksum, src_ip, src_port); -#else - return udp_sendto_if_chksum(pcb, p, dst_ip, dst_port, netif, have_chksum, chksum); -#endif /* TUN2SOCKS */ -#else /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ -#if TUN2SOCKS - return udp_sendto_if(pcb, p, dst_ip, dst_port, netif, src_ip, src_port); -#else - return udp_sendto_if(pcb, p, dst_ip, dst_port, netif); -#endif /* TUN2SOCKS */ -#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ -} - -/** - * @ingroup udp_raw - * Send data to a specified address using UDP. - * The netif used for sending can be specified. - * - * This function exists mainly for DHCP, to be able to send UDP packets - * on a netif that is still down. - * - * @param pcb UDP PCB used to send the data. - * @param p chain of pbuf's to be sent. - * @param dst_ip Destination IP address. - * @param dst_port Destination UDP port. - * @param netif the netif used for sending. - * - * dst_ip & dst_port are expected to be in the same byte order as in the pcb. - * - * @return lwIP error code (@see udp_send for possible error codes) - * - * @see udp_disconnect() udp_send() - */ -#if TUN2SOCKS -err_t -udp_sendto_if(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, struct netif *netif, const ip_addr_t *src_ip, u16_t src_port) -{ -#else -err_t -udp_sendto_if(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, struct netif *netif) -{ -#endif /* TUN2SOCKS */ -#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP -#if TUN2SOCKS - return udp_sendto_if_chksum(pcb, p, dst_ip, dst_port, netif, 0, 0, src_ip, src_port); -} - -/** Same as udp_sendto_if(), but with checksum */ -err_t -udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, - u16_t dst_port, struct netif *netif, u8_t have_chksum, - u16_t chksum, const ip_addr_t *src_ip, u16_t src_port) -{ -#else - return udp_sendto_if_chksum(pcb, p, dst_ip, dst_port, netif, 0, 0); -} - -/** Same as udp_sendto_if(), but with checksum */ -err_t -udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, - u16_t dst_port, struct netif *netif, u8_t have_chksum, - u16_t chksum) -{ -#endif /* TUN2SOCKS */ -#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ -#if TUN2SOCKS -#else - const ip_addr_t *src_ip; -#endif /* TUN2SOCKS */ - - LWIP_ERROR("udp_sendto_if: invalid pcb", pcb != NULL, return ERR_ARG); - LWIP_ERROR("udp_sendto_if: invalid pbuf", p != NULL, return ERR_ARG); - LWIP_ERROR("udp_sendto_if: invalid dst_ip", dst_ip != NULL, return ERR_ARG); - LWIP_ERROR("udp_sendto_if: invalid netif", netif != NULL, return ERR_ARG); - - if (!IP_ADDR_PCB_VERSION_MATCH(pcb, dst_ip)) { - return ERR_VAL; - } - -#if TUN2SOCKS -#else - /* PCB local address is IP_ANY_ADDR or multicast? */ -#if LWIP_IPV6 - if (IP_IS_V6(dst_ip)) { - if (ip6_addr_isany(ip_2_ip6(&pcb->local_ip)) || - ip6_addr_ismulticast(ip_2_ip6(&pcb->local_ip))) { - src_ip = ip6_select_source_address(netif, ip_2_ip6(dst_ip)); - if (src_ip == NULL) { - /* No suitable source address was found. */ - return ERR_RTE; - } - } else { - /* use UDP PCB local IPv6 address as source address, if still valid. */ - if (netif_get_ip6_addr_match(netif, ip_2_ip6(&pcb->local_ip)) < 0) { - /* Address isn't valid anymore. */ - return ERR_RTE; - } - src_ip = &pcb->local_ip; - } - } -#endif /* LWIP_IPV6 */ -#if LWIP_IPV4 && LWIP_IPV6 - else -#endif /* LWIP_IPV4 && LWIP_IPV6 */ -#if LWIP_IPV4 - if (ip4_addr_isany(ip_2_ip4(&pcb->local_ip)) || - ip4_addr_ismulticast(ip_2_ip4(&pcb->local_ip))) { - /* if the local_ip is any or multicast - * use the outgoing network interface IP address as source address */ - src_ip = netif_ip_addr4(netif); - } else { - /* check if UDP PCB local IP address is correct - * this could be an old address if netif->ip_addr has changed */ - if (!ip4_addr_cmp(ip_2_ip4(&(pcb->local_ip)), netif_ip4_addr(netif))) { - /* local_ip doesn't match, drop the packet */ - return ERR_RTE; - } - /* use UDP PCB local IP address as source address */ - src_ip = &pcb->local_ip; - } -#endif /* LWIP_IPV4 */ -#endif /* TUN2SOCKS */ -#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP -#if TUN2SOCKS - return udp_sendto_if_src_chksum(pcb, p, dst_ip, dst_port, netif, have_chksum, chksum, src_ip, src_port); -#else - return udp_sendto_if_src_chksum(pcb, p, dst_ip, dst_port, netif, have_chksum, chksum, src_ip); -#endif /* TUN2SOCKS */ -#else /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ -#if TUN2SOCKS - return udp_sendto_if_src(pcb, p, dst_ip, dst_port, netif, src_ip, src_port); -#else - return udp_sendto_if_src(pcb, p, dst_ip, dst_port, netif, src_ip); -#endif /* TUN2SOCKS */ -#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ -} - -/** @ingroup udp_raw - * Same as @ref udp_sendto_if, but with source address */ -#if TUN2SOCKS -err_t -udp_sendto_if_src(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, struct netif *netif, const ip_addr_t *src_ip, u16_t src_port) -{ -#else -err_t -udp_sendto_if_src(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, struct netif *netif, const ip_addr_t *src_ip) -{ -#endif /* TUN2SOCKS */ -#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP -#if TUN2SOCKS - return udp_sendto_if_src_chksum(pcb, p, dst_ip, dst_port, netif, 0, 0, src_ip, src_port); -} - -/** Same as udp_sendto_if_src(), but with checksum */ -err_t -udp_sendto_if_src_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, - u16_t dst_port, struct netif *netif, u8_t have_chksum, - u16_t chksum, const ip_addr_t *src_ip, u16_t src_port) -{ -#else - return udp_sendto_if_src_chksum(pcb, p, dst_ip, dst_port, netif, 0, 0, src_ip); -} - -/** Same as udp_sendto_if_src(), but with checksum */ -err_t -udp_sendto_if_src_chksum(struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, - u16_t dst_port, struct netif *netif, u8_t have_chksum, - u16_t chksum, const ip_addr_t *src_ip) -{ -#endif /* TUN2SOCKS */ -#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ - struct udp_hdr *udphdr; - err_t err; - struct pbuf *q; /* q will be sent down the stack */ - u8_t ip_proto; - u8_t ttl; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("udp_sendto_if_src: invalid pcb", pcb != NULL, return ERR_ARG); - LWIP_ERROR("udp_sendto_if_src: invalid pbuf", p != NULL, return ERR_ARG); - LWIP_ERROR("udp_sendto_if_src: invalid dst_ip", dst_ip != NULL, return ERR_ARG); - LWIP_ERROR("udp_sendto_if_src: invalid src_ip", src_ip != NULL, return ERR_ARG); - LWIP_ERROR("udp_sendto_if_src: invalid netif", netif != NULL, return ERR_ARG); - - if (!IP_ADDR_PCB_VERSION_MATCH(pcb, src_ip) || - !IP_ADDR_PCB_VERSION_MATCH(pcb, dst_ip)) { - return ERR_VAL; - } - -#if LWIP_IPV4 && IP_SOF_BROADCAST - /* broadcast filter? */ - if (!ip_get_option(pcb, SOF_BROADCAST) && -#if LWIP_IPV6 - IP_IS_V4(dst_ip) && -#endif /* LWIP_IPV6 */ - ip_addr_isbroadcast(dst_ip, netif)) { - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_LEVEL_SERIOUS, - ("udp_sendto_if: SOF_BROADCAST not enabled on pcb %p\n", (void *)pcb)); - return ERR_VAL; - } -#endif /* LWIP_IPV4 && IP_SOF_BROADCAST */ - - /* if the PCB is not yet bound to a port, bind it here */ - if (pcb->local_port == 0) { - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_send: not yet bound to a port, binding now\n")); - err = udp_bind(pcb, &pcb->local_ip, pcb->local_port); - if (err != ERR_OK) { - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("udp_send: forced port bind failed\n")); - return err; - } - } - - /* packet too large to add a UDP header without causing an overflow? */ - if ((u16_t)(p->tot_len + UDP_HLEN) < p->tot_len) { - return ERR_MEM; - } - /* not enough space to add an UDP header to first pbuf in given p chain? */ - if (pbuf_add_header(p, UDP_HLEN)) { - /* allocate header in a separate new pbuf */ - q = pbuf_alloc(PBUF_IP, UDP_HLEN, PBUF_RAM); - /* new header pbuf could not be allocated? */ - if (q == NULL) { - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_LEVEL_SERIOUS, ("udp_send: could not allocate header\n")); - return ERR_MEM; - } - if (p->tot_len != 0) { - /* chain header q in front of given pbuf p (only if p contains data) */ - pbuf_chain(q, p); - } - /* first pbuf q points to header pbuf */ - LWIP_DEBUGF(UDP_DEBUG, - ("udp_send: added header pbuf %p before given pbuf %p\n", (void *)q, (void *)p)); - } else { - /* adding space for header within p succeeded */ - /* first pbuf q equals given pbuf */ - q = p; - LWIP_DEBUGF(UDP_DEBUG, ("udp_send: added header in given pbuf %p\n", (void *)p)); - } - LWIP_ASSERT("check that first pbuf can hold struct udp_hdr", - (q->len >= sizeof(struct udp_hdr))); - /* q now represents the packet to be sent */ - udphdr = (struct udp_hdr *)q->payload; -#if TUN2SOCKS - udphdr->src = lwip_htons(src_port); -#else - udphdr->src = lwip_htons(pcb->local_port); -#endif /* TUN2SOCKS */ - udphdr->dest = lwip_htons(dst_port); - /* in UDP, 0 checksum means 'no checksum' */ - udphdr->chksum = 0x0000; - - /* Multicast Loop? */ -#if LWIP_MULTICAST_TX_OPTIONS - if (((pcb->flags & UDP_FLAGS_MULTICAST_LOOP) != 0) && ip_addr_ismulticast(dst_ip)) { - q->flags |= PBUF_FLAG_MCASTLOOP; - } -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - - LWIP_DEBUGF(UDP_DEBUG, ("udp_send: sending datagram of length %"U16_F"\n", q->tot_len)); - -#if LWIP_UDPLITE - /* UDP Lite protocol? */ - if (pcb->flags & UDP_FLAGS_UDPLITE) { - u16_t chklen, chklen_hdr; - LWIP_DEBUGF(UDP_DEBUG, ("udp_send: UDP LITE packet length %"U16_F"\n", q->tot_len)); - /* set UDP message length in UDP header */ - chklen_hdr = chklen = pcb->chksum_len_tx; - if ((chklen < sizeof(struct udp_hdr)) || (chklen > q->tot_len)) { - if (chklen != 0) { - LWIP_DEBUGF(UDP_DEBUG, ("udp_send: UDP LITE pcb->chksum_len is illegal: %"U16_F"\n", chklen)); - } - /* For UDP-Lite, checksum length of 0 means checksum - over the complete packet. (See RFC 3828 chap. 3.1) - At least the UDP-Lite header must be covered by the - checksum, therefore, if chksum_len has an illegal - value, we generate the checksum over the complete - packet to be safe. */ - chklen_hdr = 0; - chklen = q->tot_len; - } - udphdr->len = lwip_htons(chklen_hdr); - /* calculate checksum */ -#if CHECKSUM_GEN_UDP - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_UDP) { -#if LWIP_CHECKSUM_ON_COPY - if (have_chksum) { - chklen = UDP_HLEN; - } -#endif /* LWIP_CHECKSUM_ON_COPY */ - udphdr->chksum = ip_chksum_pseudo_partial(q, IP_PROTO_UDPLITE, - q->tot_len, chklen, src_ip, dst_ip); -#if LWIP_CHECKSUM_ON_COPY - if (have_chksum) { - u32_t acc; - acc = udphdr->chksum + (u16_t)~(chksum); - udphdr->chksum = FOLD_U32T(acc); - } -#endif /* LWIP_CHECKSUM_ON_COPY */ - - /* chksum zero must become 0xffff, as zero means 'no checksum' */ - if (udphdr->chksum == 0x0000) { - udphdr->chksum = 0xffff; - } - } -#endif /* CHECKSUM_GEN_UDP */ - - ip_proto = IP_PROTO_UDPLITE; - } else -#endif /* LWIP_UDPLITE */ - { /* UDP */ - LWIP_DEBUGF(UDP_DEBUG, ("udp_send: UDP packet length %"U16_F"\n", q->tot_len)); - udphdr->len = lwip_htons(q->tot_len); - /* calculate checksum */ -#if CHECKSUM_GEN_UDP - IF__NETIF_CHECKSUM_ENABLED(netif, NETIF_CHECKSUM_GEN_UDP) { - /* Checksum is mandatory over IPv6. */ - if (IP_IS_V6(dst_ip) || (pcb->flags & UDP_FLAGS_NOCHKSUM) == 0) { - u16_t udpchksum; -#if LWIP_CHECKSUM_ON_COPY - if (have_chksum) { - u32_t acc; - udpchksum = ip_chksum_pseudo_partial(q, IP_PROTO_UDP, - q->tot_len, UDP_HLEN, src_ip, dst_ip); - acc = udpchksum + (u16_t)~(chksum); - udpchksum = FOLD_U32T(acc); - } else -#endif /* LWIP_CHECKSUM_ON_COPY */ - { - udpchksum = ip_chksum_pseudo(q, IP_PROTO_UDP, q->tot_len, - src_ip, dst_ip); - } - - /* chksum zero must become 0xffff, as zero means 'no checksum' */ - if (udpchksum == 0x0000) { - udpchksum = 0xffff; - } - udphdr->chksum = udpchksum; - } - } -#endif /* CHECKSUM_GEN_UDP */ - ip_proto = IP_PROTO_UDP; - } - - /* Determine TTL to use */ -#if LWIP_MULTICAST_TX_OPTIONS - ttl = (ip_addr_ismulticast(dst_ip) ? udp_get_multicast_ttl(pcb) : pcb->ttl); -#else /* LWIP_MULTICAST_TX_OPTIONS */ - ttl = pcb->ttl; -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - - LWIP_DEBUGF(UDP_DEBUG, ("udp_send: UDP checksum 0x%04"X16_F"\n", udphdr->chksum)); - LWIP_DEBUGF(UDP_DEBUG, ("udp_send: ip_output_if (,,,,0x%02"X16_F",)\n", (u16_t)ip_proto)); - /* output to IP */ - NETIF_SET_HINTS(netif, &(pcb->netif_hints)); - err = ip_output_if_src(q, src_ip, dst_ip, ttl, pcb->tos, ip_proto, netif); - NETIF_RESET_HINTS(netif); - - /* @todo: must this be increased even if error occurred? */ - MIB2_STATS_INC(mib2.udpoutdatagrams); - - /* did we chain a separate header pbuf earlier? */ - if (q != p) { - /* free the header pbuf */ - pbuf_free(q); - q = NULL; - /* p is still referenced by the caller, and will live on */ - } - - UDP_STATS_INC(udp.xmit); - return err; -} - -/** - * @ingroup udp_raw - * Bind an UDP PCB. - * - * @param pcb UDP PCB to be bound with a local address ipaddr and port. - * @param ipaddr local IP address to bind with. Use IP_ANY_TYPE to - * bind to all local interfaces. - * @param port local UDP port to bind with. Use 0 to automatically bind - * to a random port between UDP_LOCAL_PORT_RANGE_START and - * UDP_LOCAL_PORT_RANGE_END. - * - * ipaddr & port are expected to be in the same byte order as in the pcb. - * - * @return lwIP error code. - * - ERR_OK. Successful. No error occurred. - * - ERR_USE. The specified ipaddr and port are already bound to by - * another UDP PCB. - * - * @see udp_disconnect() - */ -err_t -udp_bind(struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port) -{ - struct udp_pcb *ipcb; - u8_t rebind; -#if LWIP_IPV6 && LWIP_IPV6_SCOPES - ip_addr_t zoned_ipaddr; -#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ - - LWIP_ASSERT_CORE_LOCKED(); - -#if LWIP_IPV4 - /* Don't propagate NULL pointer (IPv4 ANY) to subsequent functions */ - if (ipaddr == NULL) { - ipaddr = IP4_ADDR_ANY; - } -#else /* LWIP_IPV4 */ - LWIP_ERROR("udp_bind: invalid ipaddr", ipaddr != NULL, return ERR_ARG); -#endif /* LWIP_IPV4 */ - - LWIP_ERROR("udp_bind: invalid pcb", pcb != NULL, return ERR_ARG); - - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, ("udp_bind(ipaddr = ")); - ip_addr_debug_print(UDP_DEBUG | LWIP_DBG_TRACE, ipaddr); - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE, (", port = %"U16_F")\n", port)); - - rebind = 0; - /* Check for double bind and rebind of the same pcb */ - for (ipcb = udp_pcbs; ipcb != NULL; ipcb = ipcb->next) { - /* is this UDP PCB already on active list? */ - if (pcb == ipcb) { - rebind = 1; - break; - } - } - -#if LWIP_IPV6 && LWIP_IPV6_SCOPES - /* If the given IP address should have a zone but doesn't, assign one now. - * This is legacy support: scope-aware callers should always provide properly - * zoned source addresses. Do the zone selection before the address-in-use - * check below; as such we have to make a temporary copy of the address. */ - if (IP_IS_V6(ipaddr) && ip6_addr_lacks_zone(ip_2_ip6(ipaddr), IP6_UNKNOWN)) { - ip_addr_copy(zoned_ipaddr, *ipaddr); - ip6_addr_select_zone(ip_2_ip6(&zoned_ipaddr), ip_2_ip6(&zoned_ipaddr)); - ipaddr = &zoned_ipaddr; - } -#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ - - /* no port specified? */ - if (port == 0) { - port = udp_new_port(); - if (port == 0) { - /* no more ports available in local range */ - LWIP_DEBUGF(UDP_DEBUG, ("udp_bind: out of free UDP ports\n")); - return ERR_USE; - } - } else { - for (ipcb = udp_pcbs; ipcb != NULL; ipcb = ipcb->next) { - if (pcb != ipcb) { - /* By default, we don't allow to bind to a port that any other udp - PCB is already bound to, unless *all* PCBs with that port have tha - REUSEADDR flag set. */ -#if SO_REUSE - if (!ip_get_option(pcb, SOF_REUSEADDR) || - !ip_get_option(ipcb, SOF_REUSEADDR)) -#endif /* SO_REUSE */ - { - /* port matches that of PCB in list and REUSEADDR not set -> reject */ - if ((ipcb->local_port == port) && - /* IP address matches or any IP used? */ - (ip_addr_cmp(&ipcb->local_ip, ipaddr) || ip_addr_isany(ipaddr) || - ip_addr_isany(&ipcb->local_ip))) { - /* other PCB already binds to this local IP and port */ - LWIP_DEBUGF(UDP_DEBUG, - ("udp_bind: local port %"U16_F" already bound by another pcb\n", port)); - return ERR_USE; - } - } - } - } - } - - ip_addr_set_ipaddr(&pcb->local_ip, ipaddr); - - pcb->local_port = port; - mib2_udp_bind(pcb); - /* pcb not active yet? */ - if (rebind == 0) { - /* place the PCB on the active list if not already there */ - pcb->next = udp_pcbs; - udp_pcbs = pcb; - } - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("udp_bind: bound to ")); - ip_addr_debug_print_val(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, pcb->local_ip); - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, (", port %"U16_F")\n", pcb->local_port)); - return ERR_OK; -} - -/** - * @ingroup udp_raw - * Bind an UDP PCB to a specific netif. - * After calling this function, all packets received via this PCB - * are guaranteed to have come in via the specified netif, and all - * outgoing packets will go out via the specified netif. - * - * @param pcb UDP PCB to be bound. - * @param netif netif to bind udp pcb to. Can be NULL. - * - * @see udp_disconnect() - */ -void -udp_bind_netif(struct udp_pcb *pcb, const struct netif *netif) -{ - LWIP_ASSERT_CORE_LOCKED(); - - if (netif != NULL) { - pcb->netif_idx = netif_get_index(netif); - } else { - pcb->netif_idx = NETIF_NO_INDEX; - } -} - -/** - * @ingroup udp_raw - * Sets the remote end of the pcb. This function does not generate any - * network traffic, but only sets the remote address of the pcb. - * - * @param pcb UDP PCB to be connected with remote address ipaddr and port. - * @param ipaddr remote IP address to connect with. - * @param port remote UDP port to connect with. - * - * @return lwIP error code - * - * ipaddr & port are expected to be in the same byte order as in the pcb. - * - * The udp pcb is bound to a random local port if not already bound. - * - * @see udp_disconnect() - */ -err_t -udp_connect(struct udp_pcb *pcb, const ip_addr_t *ipaddr, u16_t port) -{ - struct udp_pcb *ipcb; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("udp_connect: invalid pcb", pcb != NULL, return ERR_ARG); - LWIP_ERROR("udp_connect: invalid ipaddr", ipaddr != NULL, return ERR_ARG); - - if (pcb->local_port == 0) { - err_t err = udp_bind(pcb, &pcb->local_ip, pcb->local_port); - if (err != ERR_OK) { - return err; - } - } - - ip_addr_set_ipaddr(&pcb->remote_ip, ipaddr); -#if LWIP_IPV6 && LWIP_IPV6_SCOPES - /* If the given IP address should have a zone but doesn't, assign one now, - * using the bound address to make a more informed decision when possible. */ - if (IP_IS_V6(&pcb->remote_ip) && - ip6_addr_lacks_zone(ip_2_ip6(&pcb->remote_ip), IP6_UNKNOWN)) { - ip6_addr_select_zone(ip_2_ip6(&pcb->remote_ip), ip_2_ip6(&pcb->local_ip)); - } -#endif /* LWIP_IPV6 && LWIP_IPV6_SCOPES */ - - pcb->remote_port = port; - pcb->flags |= UDP_FLAGS_CONNECTED; - - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, ("udp_connect: connected to ")); - ip_addr_debug_print_val(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, - pcb->remote_ip); - LWIP_DEBUGF(UDP_DEBUG | LWIP_DBG_TRACE | LWIP_DBG_STATE, (", port %"U16_F")\n", pcb->remote_port)); - - /* Insert UDP PCB into the list of active UDP PCBs. */ - for (ipcb = udp_pcbs; ipcb != NULL; ipcb = ipcb->next) { - if (pcb == ipcb) { - /* already on the list, just return */ - return ERR_OK; - } - } - /* PCB not yet on the list, add PCB now */ - pcb->next = udp_pcbs; - udp_pcbs = pcb; - return ERR_OK; -} - -/** - * @ingroup udp_raw - * Remove the remote end of the pcb. This function does not generate - * any network traffic, but only removes the remote address of the pcb. - * - * @param pcb the udp pcb to disconnect. - */ -void -udp_disconnect(struct udp_pcb *pcb) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("udp_disconnect: invalid pcb", pcb != NULL, return); - - /* reset remote address association */ -#if LWIP_IPV4 && LWIP_IPV6 - if (IP_IS_ANY_TYPE_VAL(pcb->local_ip)) { - ip_addr_copy(pcb->remote_ip, *IP_ANY_TYPE); - } else { -#endif - ip_addr_set_any(IP_IS_V6_VAL(pcb->remote_ip), &pcb->remote_ip); -#if LWIP_IPV4 && LWIP_IPV6 - } -#endif - pcb->remote_port = 0; - pcb->netif_idx = NETIF_NO_INDEX; - /* mark PCB as unconnected */ - udp_clear_flags(pcb, UDP_FLAGS_CONNECTED); -} - -/** - * @ingroup udp_raw - * Set a receive callback for a UDP PCB. - * This callback will be called when receiving a datagram for the pcb. - * - * @param pcb the pcb for which to set the recv callback - * @param recv function pointer of the callback function - * @param recv_arg additional argument to pass to the callback function - */ -void -udp_recv(struct udp_pcb *pcb, udp_recv_fn recv, void *recv_arg) -{ - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("udp_recv: invalid pcb", pcb != NULL, return); - - /* remember recv() callback and user data */ - pcb->recv = recv; - pcb->recv_arg = recv_arg; -} - -/** - * @ingroup udp_raw - * Removes and deallocates the pcb. - * - * @param pcb UDP PCB to be removed. The PCB is removed from the list of - * UDP PCB's and the data structure is freed from memory. - * - * @see udp_new() - */ -void -udp_remove(struct udp_pcb *pcb) -{ - struct udp_pcb *pcb2; - - LWIP_ASSERT_CORE_LOCKED(); - - LWIP_ERROR("udp_remove: invalid pcb", pcb != NULL, return); - - mib2_udp_unbind(pcb); - /* pcb to be removed is first in list? */ - if (udp_pcbs == pcb) { - /* make list start at 2nd pcb */ - udp_pcbs = udp_pcbs->next; - /* pcb not 1st in list */ - } else { - for (pcb2 = udp_pcbs; pcb2 != NULL; pcb2 = pcb2->next) { - /* find pcb in udp_pcbs list */ - if (pcb2->next != NULL && pcb2->next == pcb) { - /* remove pcb from list */ - pcb2->next = pcb->next; - break; - } - } - } - memp_free(MEMP_UDP_PCB, pcb); -} - -/** - * @ingroup udp_raw - * Creates a new UDP pcb which can be used for UDP communication. The - * pcb is not active until it has either been bound to a local address - * or connected to a remote address. - * - * @return The UDP PCB which was created. NULL if the PCB data structure - * could not be allocated. - * - * @see udp_remove() - */ -struct udp_pcb * -udp_new(void) -{ - struct udp_pcb *pcb; - - LWIP_ASSERT_CORE_LOCKED(); - - pcb = (struct udp_pcb *)memp_malloc(MEMP_UDP_PCB); - /* could allocate UDP PCB? */ - if (pcb != NULL) { - /* UDP Lite: by initializing to all zeroes, chksum_len is set to 0 - * which means checksum is generated over the whole datagram per default - * (recommended as default by RFC 3828). */ - /* initialize PCB to all zeroes */ - memset(pcb, 0, sizeof(struct udp_pcb)); - pcb->ttl = UDP_TTL; -#if LWIP_MULTICAST_TX_OPTIONS - udp_set_multicast_ttl(pcb, UDP_TTL); -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - } - return pcb; -} - -/** - * @ingroup udp_raw - * Create a UDP PCB for specific IP type. - * The pcb is not active until it has either been bound to a local address - * or connected to a remote address. - * - * @param type IP address type, see @ref lwip_ip_addr_type definitions. - * If you want to listen to IPv4 and IPv6 (dual-stack) packets, - * supply @ref IPADDR_TYPE_ANY as argument and bind to @ref IP_ANY_TYPE. - * @return The UDP PCB which was created. NULL if the PCB data structure - * could not be allocated. - * - * @see udp_remove() - */ -struct udp_pcb * -udp_new_ip_type(u8_t type) -{ - struct udp_pcb *pcb; - - LWIP_ASSERT_CORE_LOCKED(); - - pcb = udp_new(); -#if LWIP_IPV4 && LWIP_IPV6 - if (pcb != NULL) { - IP_SET_TYPE_VAL(pcb->local_ip, type); - IP_SET_TYPE_VAL(pcb->remote_ip, type); - } -#else - LWIP_UNUSED_ARG(type); -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - return pcb; -} - -/** This function is called from netif.c when address is changed - * - * @param old_addr IP address of the netif before change - * @param new_addr IP address of the netif after change - */ -void udp_netif_ip_addr_changed(const ip_addr_t *old_addr, const ip_addr_t *new_addr) -{ - struct udp_pcb *upcb; - - if (!ip_addr_isany(old_addr) && !ip_addr_isany(new_addr)) { - for (upcb = udp_pcbs; upcb != NULL; upcb = upcb->next) { - /* PCB bound to current local interface address? */ - if (ip_addr_cmp(&upcb->local_ip, old_addr)) { - /* The PCB is bound to the old ipaddr and - * is set to bound to the new one instead */ - ip_addr_copy(upcb->local_ip, *new_addr); - } - } - } -} - -#if UDP_DEBUG -/** - * Print UDP header information for debug purposes. - * - * @param udphdr pointer to the udp header in memory. - */ -void -udp_debug_print(struct udp_hdr *udphdr) -{ - LWIP_DEBUGF(UDP_DEBUG, ("UDP header:\n")); - LWIP_DEBUGF(UDP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(UDP_DEBUG, ("| %5"U16_F" | %5"U16_F" | (src port, dest port)\n", - lwip_ntohs(udphdr->src), lwip_ntohs(udphdr->dest))); - LWIP_DEBUGF(UDP_DEBUG, ("+-------------------------------+\n")); - LWIP_DEBUGF(UDP_DEBUG, ("| %5"U16_F" | 0x%04"X16_F" | (len, chksum)\n", - lwip_ntohs(udphdr->len), lwip_ntohs(udphdr->chksum))); - LWIP_DEBUGF(UDP_DEBUG, ("+-------------------------------+\n")); -} -#endif /* UDP_DEBUG */ - -#endif /* LWIP_UDP */ diff --git a/core/c/custom/arch/bpstruct.h b/core/c/custom/arch/bpstruct.h deleted file mode 100755 index d7a4604..0000000 --- a/core/c/custom/arch/bpstruct.h +++ /dev/null @@ -1 +0,0 @@ -#pragma pack(push,1) diff --git a/core/c/custom/arch/cc.h b/core/c/custom/arch/cc.h deleted file mode 100755 index 59e3084..0000000 --- a/core/c/custom/arch/cc.h +++ /dev/null @@ -1,6 +0,0 @@ -#ifdef _WIN32 - // both win32 and win64 are defined here - #include "cc_windows.h" -#else - #include "cc_others.h" -#endif diff --git a/core/c/custom/arch/cc_others.h b/core/c/custom/arch/cc_others.h deleted file mode 100755 index 6361f33..0000000 --- a/core/c/custom/arch/cc_others.h +++ /dev/null @@ -1,99 +0,0 @@ -/* - * Copyright (c) 2001-2003 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_ARCH_CC_H -#define LWIP_ARCH_CC_H - -/* Include some files for defining library routines */ -#include - -#define LWIP_TIMEVAL_PRIVATE 0 - -/* Define platform endianness */ -#ifndef BYTE_ORDER -#define BYTE_ORDER LITTLE_ENDIAN -#endif /* BYTE_ORDER */ - -/* Define generic types used in lwIP */ -/* -typedef unsigned char u8_t; -typedef signed char s8_t; -typedef unsigned short u16_t; -typedef signed short s16_t; -typedef unsigned int u32_t; -typedef signed int s32_t; - -typedef unsigned long mem_ptr_t; -*/ - -/* Define (sn)printf formatters for these lwIP types */ -#define X8_F "02x" -#define U16_F "hu" -#define S16_F "hd" -#define X16_F "hx" -#define U32_F "u" -#define S32_F "d" -#define X32_F "x" - -/* If only we could use C99 and get %zu */ -#if defined(__x86_64__) -#define SZT_F "lu" -#else -#define SZT_F "u" -#endif - -/* Compiler hints for packing structures */ -#define PACK_STRUCT_FIELD(x) x -#define PACK_STRUCT_STRUCT __attribute__((packed)) -#define PACK_STRUCT_BEGIN -#define PACK_STRUCT_END - -/* prototypes for printf() and abort() */ -#include -#include -/* Plaform specific diagnostic output */ -#define LWIP_PLATFORM_DIAG(x) do {printf x;} while(0) - -#ifdef LWIP_UNIX_EMPTY_ASSERT -#define LWIP_PLATFORM_ASSERT(x) -#else -#define LWIP_PLATFORM_ASSERT(x) do {printf("Assertion \"%s\" failed at line %d in %s\n", \ -x, __LINE__, __FILE__); fflush(NULL); abort();} while(0) -#endif - -#define LWIP_RAND() ((u32_t)rand()) - -struct sio_status_s; -typedef struct sio_status_s sio_status_t; -#define sio_fd_t sio_status_t* -#define __sio_fd_t_defined - -#endif /* LWIP_ARCH_CC_H */ diff --git a/core/c/custom/arch/cc_windows.h b/core/c/custom/arch/cc_windows.h deleted file mode 100755 index 30e478a..0000000 --- a/core/c/custom/arch/cc_windows.h +++ /dev/null @@ -1,102 +0,0 @@ -/* - * Copyright (c) 2001-2003 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_ARCH_CC_H -#define LWIP_ARCH_CC_H - -#ifdef _MSC_VER -#pragma warning (disable: 4127) /* conditional expression is constant */ -#pragma warning (disable: 4996) /* 'strncpy' was declared deprecated */ -#pragma warning (disable: 4103) /* structure packing changed by including file */ -#pragma warning (disable: 4820) /* 'x' bytes padding added after data member 'y' */ -#pragma warning (disable: 4711) /* The compiler performed inlining on the given function, although it was not marked for inlining */ -#endif - -#define LWIP_PROVIDE_ERRNO - -/* Define platform endianness (might already be defined) */ -#ifndef BYTE_ORDER -#define BYTE_ORDER LITTLE_ENDIAN -#endif /* BYTE_ORDER */ - -typedef int sys_prot_t; - -#ifdef _MSC_VER -/* define _INTPTR for Win32 MSVC stdint.h */ -#define _INTPTR 2 - -/* Do not use lwIP default definitions for format strings - * because these do not work with MSVC 2010 compiler (no inttypes.h) - */ -#define LWIP_NO_INTTYPES_H 1 - -/* Define (sn)printf formatters for these lwIP types */ -#define X8_F "02x" -#define U16_F "hu" -#define U32_F "lu" -#define S32_F "ld" -#define X32_F "lx" - -#define S16_F "hd" -#define X16_F "hx" -#define SZT_F "lu" -#endif /* _MSC_VER */ - -/* Compiler hints for packing structures */ -#define PACK_STRUCT_USE_INCLUDES - -#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \ - printf("Assertion \"%s\" failed at line %d in %s\n", message, __LINE__, __FILE__); \ - fflush(NULL);handler;} } while(0) - -#ifdef _MSC_VER -/* C runtime functions redefined */ -#define snprintf _snprintf -#define strdup _strdup -#endif - -/* Define an example for LWIP_PLATFORM_DIAG: since this uses varargs and the old - * C standard lwIP targets does not support this in macros, we have extra brackets - * around the arguments, which are left out in the following macro definition: - */ -#if !defined(LWIP_TESTMODE) || !LWIP_TESTMODE -void lwip_win32_platform_diag(const char *format, ...); -#define LWIP_PLATFORM_DIAG(x) lwip_win32_platform_diag x -#endif - -#ifndef LWIP_NORAND -extern unsigned int sys_win_rand(void); -#define LWIP_RAND() (sys_win_rand()) -#endif - -#define PPP_INCLUDE_SETTINGS_HEADER - -#endif /* LWIP_ARCH_CC_H */ diff --git a/core/c/custom/arch/epstruct.h b/core/c/custom/arch/epstruct.h deleted file mode 100755 index 7b11ffb..0000000 --- a/core/c/custom/arch/epstruct.h +++ /dev/null @@ -1 +0,0 @@ -#pragma pack(pop) diff --git a/core/c/custom/arch/perf.h b/core/c/custom/arch/perf.h deleted file mode 100755 index 1537016..0000000 --- a/core/c/custom/arch/perf.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef perf_h -#define perf_h - -#define PERF_START -#define PERF_STOP(x) - -#endif /* perf_h */ diff --git a/core/c/custom/arch/sys_arch.h b/core/c/custom/arch/sys_arch.h deleted file mode 100755 index cca4863..0000000 --- a/core/c/custom/arch/sys_arch.h +++ /dev/null @@ -1,7 +0,0 @@ -#ifndef __ARCH_SYS_ARCH_H__ -#define __ARCH_SYS_ARCH_H__ - -#define SYS_MBOX_NULL NULL -#define SYS_SEM_NULL NULL - -#endif /* __ARCH_SYS_ARCH_H__ */ diff --git a/core/c/custom/lwipopts.h b/core/c/custom/lwipopts.h deleted file mode 100755 index bbf9ef8..0000000 --- a/core/c/custom/lwipopts.h +++ /dev/null @@ -1,117 +0,0 @@ -/** - * @file lwipopts.h - * @author Ambroz Bizjak - * - * @section LICENSE - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the author nor the - * names of its contributors may be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef LWIP_CUSTOM_LWIPOPTS_H -#define LWIP_CUSTOM_LWIPOPTS_H - -// enable tun2socks logic -#define TUN2SOCKS 1 - -#define NO_SYS 1 -#define LWIP_TIMERS 1 - -#define IP_DEFAULT_TTL 64 -#define LWIP_ARP 0 -#define ARP_QUEUEING 0 -#define IP_FORWARD 0 -#define LWIP_ICMP 1 -#define LWIP_RAW 1 -#define LWIP_DHCP 0 -#define LWIP_AUTOIP 0 -#define LWIP_SNMP 0 -#define LWIP_IGMP 0 -#define LWIP_DNS 0 -#define LWIP_UDP 1 -#define LWIP_UDPLITE 0 -#define LWIP_TCP 1 -#define LWIP_CALLBACK_API 1 -#define LWIP_NETIF_API 0 -#define LWIP_NETIF_LOOPBACK 0 -#define LWIP_HAVE_LOOPIF 1 -#define LWIP_HAVE_SLIPIF 0 -#define LWIP_NETCONN 0 -#define LWIP_SOCKET 0 -#define PPP_SUPPORT 0 -#define LWIP_IPV6 1 -#define LWIP_IPV6_MLD 0 -#define LWIP_IPV6_AUTOCONFIG 1 - -// disable checksum checks -#define CHECKSUM_CHECK_IP 0 -#define CHECKSUM_CHECK_UDP 0 -#define CHECKSUM_CHECK_TCP 0 -#define CHECKSUM_CHECK_ICMP 0 -#define CHECKSUM_CHECK_ICMP6 0 - -#define LWIP_CHECKSUM_ON_COPY 1 - -#define MEMP_NUM_TCP_PCB_LISTEN 1 -#define MEMP_NUM_TCP_PCB 16 -#define MEMP_NUM_UDP_PCB 1 - -/* -#define TCP_LISTEN_BACKLOG 1 -#define TCP_DEFAULT_LISTEN_BACKLOG 0xff -#define LWIP_TCP_TIMESTAMPS 1 -*/ - -#define TCP_MSS 1460 -#define TCP_WND 32 * 1024 -#define TCP_SND_BUF (TCP_WND) - -#define MEM_LIBC_MALLOC 1 -#define MEMP_MEM_MALLOC 1 -#define MEM_SIZE 128 * 1024 - -#define SYS_LIGHTWEIGHT_PROT 0 -#define LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS - -// needed on 64-bit systems, enable it always so that the same configuration -// is used regardless of the platform -#define IPV6_FRAG_COPYHEADER 1 - -#define LWIP_DEBUG 0 -#define LWIP_DBG_TYPES_ON LWIP_DBG_OFF -#define INET_DEBUG LWIP_DBG_ON -#define IP_DEBUG LWIP_DBG_ON -#define RAW_DEBUG LWIP_DBG_ON -#define SYS_DEBUG LWIP_DBG_ON -#define NETIF_DEBUG LWIP_DBG_ON -#define TCP_DEBUG LWIP_DBG_ON -#define UDP_DEBUG LWIP_DBG_ON -#define TCP_INPUT_DEBUG LWIP_DBG_ON -#define TCP_OUTPUT_DEBUG LWIP_DBG_ON -#define TCPIP_DEBUG LWIP_DBG_ON -#define IP6_DEBUG LWIP_DBG_ON - -#define LWIP_STATS 0 -#define LWIP_STATS_DISPLAY 0 -#define LWIP_PERF 0 - -#endif diff --git a/core/c/custom/sys_arch.c b/core/c/custom/sys_arch.c deleted file mode 100755 index 49ae515..0000000 --- a/core/c/custom/sys_arch.c +++ /dev/null @@ -1,223 +0,0 @@ -#include "lwip/opt.h" -#include "lwip/sys.h" - -#ifdef _WIN32 - // defines both win32 and win64 - #ifdef _MSC_VER - #pragma warning (push, 3) - #endif - #include - #ifdef _MSC_VER - #pragma warning (pop) - #endif - #include - - #include - #include - #include - #include - - /** Set this to 1 to enable assertion checks that SYS_ARCH_PROTECT() is only - * called once in a call stack (calling it nested might cause trouble in some - * implementations, so let's avoid this in core code as long as we can). - */ - #ifndef LWIP_SYS_ARCH_CHECK_NESTED_PROTECT - #define LWIP_SYS_ARCH_CHECK_NESTED_PROTECT 1 - #endif - - /** Set this to 1 to enable assertion checks that SYS_ARCH_PROTECT() is *not* - * called before functions potentiolly involving the OS scheduler. - * - * This scheme is currently broken only for non-core-locking when waking up - * threads waiting on a socket via select/poll. - */ - #ifndef LWIP_SYS_ARCH_CHECK_SCHEDULING_UNPROTECTED - #define LWIP_SYS_ARCH_CHECK_SCHEDULING_UNPROTECTED LWIP_TCPIP_CORE_LOCKING - #endif - - #define LWIP_WIN32_SYS_ARCH_ENABLE_PROTECT_COUNTER (LWIP_SYS_ARCH_CHECK_NESTED_PROTECT || LWIP_SYS_ARCH_CHECK_SCHEDULING_UNPROTECTED) - - /* These functions are used from NO_SYS also, for precise timer triggering */ - static LARGE_INTEGER freq, sys_start_time; - #define SYS_INITIALIZED() (freq.QuadPart != 0) - - static DWORD netconn_sem_tls_index; - - static HCRYPTPROV hcrypt; - - u32_t - sys_win_rand(void) - { - u32_t ret; - if (CryptGenRandom(hcrypt, sizeof(ret), (BYTE*)&ret)) { - return ret; - } - LWIP_ASSERT("CryptGenRandom failed", 0); - return 0; - } - - static void - sys_win_rand_init(void) - { - if (!CryptAcquireContext(&hcrypt, NULL, NULL, PROV_RSA_FULL, 0)) { - DWORD err = GetLastError(); - LWIP_PLATFORM_DIAG(("CryptAcquireContext failed with error %d, trying to create NEWKEYSET", (int)err)); - if(!CryptAcquireContext(&hcrypt, NULL, NULL, PROV_RSA_FULL, CRYPT_NEWKEYSET)) { - char errbuf[128]; - err = GetLastError(); - snprintf(errbuf, sizeof(errbuf), "CryptAcquireContext failed with error %d", (int)err); - LWIP_UNUSED_ARG(err); - LWIP_ASSERT(errbuf, 0); - } - } - } - - static void - sys_init_timing(void) - { - QueryPerformanceFrequency(&freq); - QueryPerformanceCounter(&sys_start_time); - } - - static LONGLONG - sys_get_ms_longlong(void) - { - LONGLONG ret; - LARGE_INTEGER now; - #if NO_SYS - if (!SYS_INITIALIZED()) { - sys_init(); - LWIP_ASSERT("initialization failed", SYS_INITIALIZED()); - } - #endif /* NO_SYS */ - QueryPerformanceCounter(&now); - ret = now.QuadPart-sys_start_time.QuadPart; - return (u32_t)(((ret)*1000)/freq.QuadPart); - } - - u32_t - sys_jiffies(void) - { - return (u32_t)sys_get_ms_longlong(); - } - - u32_t - sys_now(void) - { - return (u32_t)sys_get_ms_longlong(); - } - - CRITICAL_SECTION critSec; - #if LWIP_WIN32_SYS_ARCH_ENABLE_PROTECT_COUNTER - static int protection_depth; - #endif - - static void - InitSysArchProtect(void) - { - InitializeCriticalSection(&critSec); - } - - sys_prot_t - sys_arch_protect(void) - { - #if NO_SYS - if (!SYS_INITIALIZED()) { - sys_init(); - LWIP_ASSERT("initialization failed", SYS_INITIALIZED()); - } - #endif - EnterCriticalSection(&critSec); - #if LWIP_SYS_ARCH_CHECK_NESTED_PROTECT - LWIP_ASSERT("nested SYS_ARCH_PROTECT", protection_depth == 0); - #endif - #if LWIP_WIN32_SYS_ARCH_ENABLE_PROTECT_COUNTER - protection_depth++; - #endif - return 0; - } - - void - sys_arch_unprotect(sys_prot_t pval) - { - LWIP_UNUSED_ARG(pval); - #if LWIP_SYS_ARCH_CHECK_NESTED_PROTECT - LWIP_ASSERT("missing SYS_ARCH_PROTECT", protection_depth == 1); - #else - LWIP_ASSERT("missing SYS_ARCH_PROTECT", protection_depth > 0); - #endif - #if LWIP_WIN32_SYS_ARCH_ENABLE_PROTECT_COUNTER - protection_depth--; - #endif - LeaveCriticalSection(&critSec); - } - - #if LWIP_SYS_ARCH_CHECK_SCHEDULING_UNPROTECTED - /** This checks that SYS_ARCH_PROTECT() hasn't been called by protecting - * and then checking the level - */ - static void - sys_arch_check_not_protected(void) - { - sys_arch_protect(); - LWIP_ASSERT("SYS_ARCH_PROTECT before scheduling", protection_depth == 1); - sys_arch_unprotect(0); - } - #else - #define sys_arch_check_not_protected() - #endif - - static void - msvc_sys_init(void) - { - sys_win_rand_init(); - sys_init_timing(); - InitSysArchProtect(); - netconn_sem_tls_index = TlsAlloc(); - LWIP_ASSERT("TlsAlloc failed", netconn_sem_tls_index != TLS_OUT_OF_INDEXES); - } - - void - sys_init(void) - { - msvc_sys_init(); - } - - #include - - /* This is an example implementation for LWIP_PLATFORM_DIAG: - * format a string and pass it to your output function. - */ - void - lwip_win32_platform_diag(const char *format, ...) - { - va_list ap; - /* get the varargs */ - va_start(ap, format); - /* print via varargs; to use another output function, you could use - vsnprintf here */ - vprintf(format, ap); - va_end(ap); - } -#elif __APPLE__ - #include - u32_t sys_now(void) { - uint64_t now = mach_absolute_time(); - mach_timebase_info_data_t info; - mach_timebase_info(&info); - now = now * info.numer / info.denom / NSEC_PER_MSEC; - return (u32_t)(now); - } -#elif __linux - #include - u32_t sys_now(void) - { - struct timeval te; - gettimeofday(&te, NULL); - return te.tv_sec*1000LL + te.tv_usec/1000; - } -#elif __unix // all unices not caught above - // Unix -#elif __posix - // POSIX -#endif diff --git a/core/c/include/compat/posix/arpa/inet.h b/core/c/include/compat/posix/arpa/inet.h deleted file mode 100755 index 68267e5..0000000 --- a/core/c/include/compat/posix/arpa/inet.h +++ /dev/null @@ -1,33 +0,0 @@ -/** - * @file - * This file is a posix wrapper for lwip/sockets.h. - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "lwip/sockets.h" diff --git a/core/c/include/compat/posix/net/if.h b/core/c/include/compat/posix/net/if.h deleted file mode 100755 index a17e8ad..0000000 --- a/core/c/include/compat/posix/net/if.h +++ /dev/null @@ -1,36 +0,0 @@ -/** - * @file - * This file is a posix wrapper for lwip/if_api.h. - */ - -/* - * Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "lwip/if_api.h" diff --git a/core/c/include/compat/posix/netdb.h b/core/c/include/compat/posix/netdb.h deleted file mode 100755 index 29abbaf..0000000 --- a/core/c/include/compat/posix/netdb.h +++ /dev/null @@ -1,33 +0,0 @@ -/** - * @file - * This file is a posix wrapper for lwip/netdb.h. - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "lwip/netdb.h" diff --git a/core/c/include/compat/posix/sys/socket.h b/core/c/include/compat/posix/sys/socket.h deleted file mode 100755 index 68267e5..0000000 --- a/core/c/include/compat/posix/sys/socket.h +++ /dev/null @@ -1,33 +0,0 @@ -/** - * @file - * This file is a posix wrapper for lwip/sockets.h. - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "lwip/sockets.h" diff --git a/core/c/include/compat/stdc/errno.h b/core/c/include/compat/stdc/errno.h deleted file mode 100755 index a3bbfd2..0000000 --- a/core/c/include/compat/stdc/errno.h +++ /dev/null @@ -1,33 +0,0 @@ -/** - * @file - * This file is a posix/stdc wrapper for lwip/errno.h. - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "lwip/errno.h" diff --git a/core/c/include/lwip/altcp.h b/core/c/include/lwip/altcp.h deleted file mode 100755 index 08bb8d5..0000000 --- a/core/c/include/lwip/altcp.h +++ /dev/null @@ -1,201 +0,0 @@ -/** - * @file - * Application layered TCP connection API (to be used from TCPIP thread)\n - * - * This file contains the generic API. - * For more details see @ref altcp_api. - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_ALTCP_H -#define LWIP_HDR_ALTCP_H - -#include "lwip/opt.h" - -#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/tcpbase.h" -#include "lwip/err.h" -#include "lwip/pbuf.h" -#include "lwip/ip_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct altcp_pcb; -struct altcp_functions; - -typedef err_t (*altcp_accept_fn)(void *arg, struct altcp_pcb *new_conn, err_t err); -typedef err_t (*altcp_connected_fn)(void *arg, struct altcp_pcb *conn, err_t err); -typedef err_t (*altcp_recv_fn)(void *arg, struct altcp_pcb *conn, struct pbuf *p, err_t err); -typedef err_t (*altcp_sent_fn)(void *arg, struct altcp_pcb *conn, u16_t len); -typedef err_t (*altcp_poll_fn)(void *arg, struct altcp_pcb *conn); -typedef void (*altcp_err_fn)(void *arg, err_t err); - -typedef struct altcp_pcb* (*altcp_new_fn)(void *arg, u8_t ip_type); - -struct altcp_pcb { - const struct altcp_functions *fns; - struct altcp_pcb *inner_conn; - void *arg; - void *state; - /* application callbacks */ - altcp_accept_fn accept; - altcp_connected_fn connected; - altcp_recv_fn recv; - altcp_sent_fn sent; - altcp_poll_fn poll; - altcp_err_fn err; - u8_t pollinterval; -}; - -/** @ingroup altcp */ -typedef struct altcp_allocator_s { - /** Allocator function */ - altcp_new_fn alloc; - /** Argument to allocator function */ - void *arg; -} altcp_allocator_t; - -struct altcp_pcb *altcp_new(altcp_allocator_t *allocator); -struct altcp_pcb *altcp_new_ip6(altcp_allocator_t *allocator); -struct altcp_pcb *altcp_new_ip_type(altcp_allocator_t *allocator, u8_t ip_type); - -void altcp_arg(struct altcp_pcb *conn, void *arg); -void altcp_accept(struct altcp_pcb *conn, altcp_accept_fn accept); -void altcp_recv(struct altcp_pcb *conn, altcp_recv_fn recv); -void altcp_sent(struct altcp_pcb *conn, altcp_sent_fn sent); -void altcp_poll(struct altcp_pcb *conn, altcp_poll_fn poll, u8_t interval); -void altcp_err(struct altcp_pcb *conn, altcp_err_fn err); - -void altcp_recved(struct altcp_pcb *conn, u16_t len); -err_t altcp_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port); -err_t altcp_connect(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected); - -/* return conn for source code compatibility to tcp callback API only */ -struct altcp_pcb *altcp_listen_with_backlog_and_err(struct altcp_pcb *conn, u8_t backlog, err_t *err); -#define altcp_listen_with_backlog(conn, backlog) altcp_listen_with_backlog_and_err(conn, backlog, NULL) -/** @ingroup altcp */ -#define altcp_listen(conn) altcp_listen_with_backlog_and_err(conn, TCP_DEFAULT_LISTEN_BACKLOG, NULL) - -void altcp_abort(struct altcp_pcb *conn); -err_t altcp_close(struct altcp_pcb *conn); -err_t altcp_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx); - -err_t altcp_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags); -err_t altcp_output(struct altcp_pcb *conn); - -u16_t altcp_mss(struct altcp_pcb *conn); -u16_t altcp_sndbuf(struct altcp_pcb *conn); -u16_t altcp_sndqueuelen(struct altcp_pcb *conn); -void altcp_nagle_disable(struct altcp_pcb *conn); -void altcp_nagle_enable(struct altcp_pcb *conn); -int altcp_nagle_disabled(struct altcp_pcb *conn); - -void altcp_setprio(struct altcp_pcb *conn, u8_t prio); - -err_t altcp_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port); -ip_addr_t *altcp_get_ip(struct altcp_pcb *conn, int local); -u16_t altcp_get_port(struct altcp_pcb *conn, int local); - -#ifdef LWIP_DEBUG -enum tcp_state altcp_dbg_get_tcp_state(struct altcp_pcb *conn); -#endif - -#ifdef __cplusplus -} -#endif - -#else /* LWIP_ALTCP */ - -/* ALTCP disabled, define everything to link against tcp callback API (e.g. to get a small non-ssl httpd) */ - -#include "lwip/tcp.h" - -#define altcp_accept_fn tcp_accept_fn -#define altcp_connected_fn tcp_connected_fn -#define altcp_recv_fn tcp_recv_fn -#define altcp_sent_fn tcp_sent_fn -#define altcp_poll_fn tcp_poll_fn -#define altcp_err_fn tcp_err_fn - -#define altcp_pcb tcp_pcb -#define altcp_tcp_new_ip_type tcp_new_ip_type -#define altcp_tcp_new tcp_new -#define altcp_tcp_new_ip6 tcp_new_ip6 - -#define altcp_new(allocator) tcp_new() -#define altcp_new_ip6(allocator) tcp_new_ip6() -#define altcp_new_ip_type(allocator, ip_type) tcp_new_ip_type(ip_type) - -#define altcp_arg tcp_arg -#define altcp_accept tcp_accept -#define altcp_recv tcp_recv -#define altcp_sent tcp_sent -#define altcp_poll tcp_poll -#define altcp_err tcp_err - -#define altcp_recved tcp_recved -#define altcp_bind tcp_bind -#define altcp_connect tcp_connect - -#define altcp_listen_with_backlog_and_err tcp_listen_with_backlog_and_err -#define altcp_listen_with_backlog tcp_listen_with_backlog -#define altcp_listen tcp_listen - -#define altcp_abort tcp_abort -#define altcp_close tcp_close -#define altcp_shutdown tcp_shutdown - -#define altcp_write tcp_write -#define altcp_output tcp_output - -#define altcp_mss tcp_mss -#define altcp_sndbuf tcp_sndbuf -#define altcp_sndqueuelen tcp_sndqueuelen -#define altcp_nagle_disable tcp_nagle_disable -#define altcp_nagle_enable tcp_nagle_enable -#define altcp_nagle_disabled tcp_nagle_disabled -#define altcp_setprio tcp_setprio - -#define altcp_get_tcp_addrinfo tcp_get_tcp_addrinfo -#define altcp_get_ip(pcb, local) ((local) ? (&(pcb)->local_ip) : (&(pcb)->remote_ip)) - -#ifdef LWIP_DEBUG -#define altcp_dbg_get_tcp_state tcp_dbg_get_tcp_state -#endif - -#endif /* LWIP_ALTCP */ - -#endif /* LWIP_HDR_ALTCP_H */ diff --git a/core/c/include/lwip/altcp_tcp.h b/core/c/include/lwip/altcp_tcp.h deleted file mode 100755 index 53550c7..0000000 --- a/core/c/include/lwip/altcp_tcp.h +++ /dev/null @@ -1,72 +0,0 @@ -/** - * @file - * Application layered TCP connection API (to be used from TCPIP thread)\n - * This interface mimics the tcp callback API to the application while preventing - * direct linking (much like virtual functions). - * This way, an application can make use of other application layer protocols - * on top of TCP without knowing the details (e.g. TLS, proxy connection). - * - * This file contains the base implementation calling into tcp. - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_ALTCP_TCP_H -#define LWIP_HDR_ALTCP_TCP_H - -#include "lwip/opt.h" - -#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/altcp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct altcp_pcb *altcp_tcp_new_ip_type(u8_t ip_type); - -#define altcp_tcp_new() altcp_tcp_new_ip_type(IPADDR_TYPE_V4) -#define altcp_tcp_new_ip6() altcp_tcp_new_ip_type(IPADDR_TYPE_V6) - -struct altcp_pcb *altcp_tcp_alloc(void *arg, u8_t ip_type); - -struct tcp_pcb; -struct altcp_pcb *altcp_tcp_wrap(struct tcp_pcb *tpcb); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_ALTCP */ - -#endif /* LWIP_HDR_ALTCP_TCP_H */ diff --git a/core/c/include/lwip/altcp_tls.h b/core/c/include/lwip/altcp_tls.h deleted file mode 100755 index c5a6820..0000000 --- a/core/c/include/lwip/altcp_tls.h +++ /dev/null @@ -1,117 +0,0 @@ -/** - * @file - * Application layered TCP/TLS connection API (to be used from TCPIP thread) - * - * @defgroup altcp_tls TLS layer - * @ingroup altcp - * This file contains function prototypes for a TLS layer. - * A port to ARM mbedtls is provided in the apps/ tree - * (LWIP_ALTCP_TLS_MBEDTLS option). - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_ALTCP_TLS_H -#define LWIP_HDR_ALTCP_TLS_H - -#include "lwip/opt.h" - -#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ - -#if LWIP_ALTCP_TLS - -#include "lwip/altcp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** @ingroup altcp_tls - * ALTCP_TLS configuration handle, content depends on port (e.g. mbedtls) - */ -struct altcp_tls_config; - -/** @ingroup altcp_tls - * Create an ALTCP_TLS server configuration handle - */ -struct altcp_tls_config *altcp_tls_create_config_server_privkey_cert(const u8_t *privkey, size_t privkey_len, - const u8_t *privkey_pass, size_t privkey_pass_len, - const u8_t *cert, size_t cert_len); - -/** @ingroup altcp_tls - * Create an ALTCP_TLS client configuration handle - */ -struct altcp_tls_config *altcp_tls_create_config_client(const u8_t *cert, size_t cert_len); - -/** @ingroup altcp_tls - * Create an ALTCP_TLS client configuration handle with two-way server/client authentication - */ -struct altcp_tls_config *altcp_tls_create_config_client_2wayauth(const u8_t *ca, size_t ca_len, const u8_t *privkey, size_t privkey_len, - const u8_t *privkey_pass, size_t privkey_pass_len, - const u8_t *cert, size_t cert_len); - -/** @ingroup altcp_tls - * Free an ALTCP_TLS configuration handle - */ -void altcp_tls_free_config(struct altcp_tls_config *conf); - -/** @ingroup altcp_tls - * Create new ALTCP_TLS layer wrapping an existing pcb as inner connection (e.g. TLS over TCP) - */ -struct altcp_pcb *altcp_tls_wrap(struct altcp_tls_config *config, struct altcp_pcb *inner_pcb); - -/** @ingroup altcp_tls - * Create new ALTCP_TLS pcb and its inner tcp pcb - */ -struct altcp_pcb *altcp_tls_new(struct altcp_tls_config *config, u8_t ip_type); - -/** @ingroup altcp_tls - * Create new ALTCP_TLS layer pcb and its inner tcp pcb. - * Same as @ref altcp_tls_new but this allocator function fits to - * @ref altcp_allocator_t / @ref altcp_new.\n - 'arg' must contain a struct altcp_tls_config *. - */ -struct altcp_pcb *altcp_tls_alloc(void *arg, u8_t ip_type); - -/** @ingroup altcp_tls - * Return pointer to internal TLS context so application can tweak it. - * Real type depends on port (e.g. mbedtls) - */ -void *altcp_tls_context(struct altcp_pcb *conn); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_ALTCP_TLS */ -#endif /* LWIP_ALTCP */ -#endif /* LWIP_HDR_ALTCP_TLS_H */ diff --git a/core/c/include/lwip/api.h b/core/c/include/lwip/api.h deleted file mode 100755 index eca6ac2..0000000 --- a/core/c/include/lwip/api.h +++ /dev/null @@ -1,431 +0,0 @@ -/** - * @file - * netconn API (to be used from non-TCPIP threads) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_API_H -#define LWIP_HDR_API_H - -#include "lwip/opt.h" - -#if LWIP_NETCONN || LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ -/* Note: Netconn API is always available when sockets are enabled - - * sockets are implemented on top of them */ - -#include "lwip/arch.h" -#include "lwip/netbuf.h" -#include "lwip/sys.h" -#include "lwip/ip_addr.h" -#include "lwip/err.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* Throughout this file, IP addresses and port numbers are expected to be in - * the same byte order as in the corresponding pcb. - */ - -/* Flags for netconn_write (u8_t) */ -#define NETCONN_NOFLAG 0x00 -#define NETCONN_NOCOPY 0x00 /* Only for source code compatibility */ -#define NETCONN_COPY 0x01 -#define NETCONN_MORE 0x02 -#define NETCONN_DONTBLOCK 0x04 -#define NETCONN_NOAUTORCVD 0x08 /* prevent netconn_recv_data_tcp() from updating the tcp window - must be done manually via netconn_tcp_recvd() */ -#define NETCONN_NOFIN 0x10 /* upper layer already received data, leave FIN in queue until called again */ - -/* Flags for struct netconn.flags (u8_t) */ -/** This netconn had an error, don't block on recvmbox/acceptmbox any more */ -#define NETCONN_FLAG_MBOXCLOSED 0x01 -/** Should this netconn avoid blocking? */ -#define NETCONN_FLAG_NON_BLOCKING 0x02 -/** Was the last connect action a non-blocking one? */ -#define NETCONN_FLAG_IN_NONBLOCKING_CONNECT 0x04 -#if LWIP_NETCONN_FULLDUPLEX - /** The mbox of this netconn is being deallocated, don't use it anymore */ -#define NETCONN_FLAG_MBOXINVALID 0x08 -#endif /* LWIP_NETCONN_FULLDUPLEX */ -/** If a nonblocking write has been rejected before, poll_tcp needs to - check if the netconn is writable again */ -#define NETCONN_FLAG_CHECK_WRITESPACE 0x10 -#if LWIP_IPV6 -/** If this flag is set then only IPv6 communication is allowed on the - netconn. As per RFC#3493 this features defaults to OFF allowing - dual-stack usage by default. */ -#define NETCONN_FLAG_IPV6_V6ONLY 0x20 -#endif /* LWIP_IPV6 */ -#if LWIP_NETBUF_RECVINFO -/** Received packet info will be recorded for this netconn */ -#define NETCONN_FLAG_PKTINFO 0x40 -#endif /* LWIP_NETBUF_RECVINFO */ -/** A FIN has been received but not passed to the application yet */ -#define NETCONN_FIN_RX_PENDING 0x80 - -/* Helpers to process several netconn_types by the same code */ -#define NETCONNTYPE_GROUP(t) ((t)&0xF0) -#define NETCONNTYPE_DATAGRAM(t) ((t)&0xE0) -#if LWIP_IPV6 -#define NETCONN_TYPE_IPV6 0x08 -#define NETCONNTYPE_ISIPV6(t) (((t)&NETCONN_TYPE_IPV6) != 0) -#define NETCONNTYPE_ISUDPLITE(t) (((t)&0xF3) == NETCONN_UDPLITE) -#define NETCONNTYPE_ISUDPNOCHKSUM(t) (((t)&0xF3) == NETCONN_UDPNOCHKSUM) -#else /* LWIP_IPV6 */ -#define NETCONNTYPE_ISIPV6(t) (0) -#define NETCONNTYPE_ISUDPLITE(t) ((t) == NETCONN_UDPLITE) -#define NETCONNTYPE_ISUDPNOCHKSUM(t) ((t) == NETCONN_UDPNOCHKSUM) -#endif /* LWIP_IPV6 */ - -/** @ingroup netconn_common - * Protocol family and type of the netconn - */ -enum netconn_type { - NETCONN_INVALID = 0, - /** TCP IPv4 */ - NETCONN_TCP = 0x10, -#if LWIP_IPV6 - /** TCP IPv6 */ - NETCONN_TCP_IPV6 = NETCONN_TCP | NETCONN_TYPE_IPV6 /* 0x18 */, -#endif /* LWIP_IPV6 */ - /** UDP IPv4 */ - NETCONN_UDP = 0x20, - /** UDP IPv4 lite */ - NETCONN_UDPLITE = 0x21, - /** UDP IPv4 no checksum */ - NETCONN_UDPNOCHKSUM = 0x22, - -#if LWIP_IPV6 - /** UDP IPv6 (dual-stack by default, unless you call @ref netconn_set_ipv6only) */ - NETCONN_UDP_IPV6 = NETCONN_UDP | NETCONN_TYPE_IPV6 /* 0x28 */, - /** UDP IPv6 lite (dual-stack by default, unless you call @ref netconn_set_ipv6only) */ - NETCONN_UDPLITE_IPV6 = NETCONN_UDPLITE | NETCONN_TYPE_IPV6 /* 0x29 */, - /** UDP IPv6 no checksum (dual-stack by default, unless you call @ref netconn_set_ipv6only) */ - NETCONN_UDPNOCHKSUM_IPV6 = NETCONN_UDPNOCHKSUM | NETCONN_TYPE_IPV6 /* 0x2a */, -#endif /* LWIP_IPV6 */ - - /** Raw connection IPv4 */ - NETCONN_RAW = 0x40 -#if LWIP_IPV6 - /** Raw connection IPv6 (dual-stack by default, unless you call @ref netconn_set_ipv6only) */ - , NETCONN_RAW_IPV6 = NETCONN_RAW | NETCONN_TYPE_IPV6 /* 0x48 */ -#endif /* LWIP_IPV6 */ -}; - -/** Current state of the netconn. Non-TCP netconns are always - * in state NETCONN_NONE! */ -enum netconn_state { - NETCONN_NONE, - NETCONN_WRITE, - NETCONN_LISTEN, - NETCONN_CONNECT, - NETCONN_CLOSE -}; - -/** Used to inform the callback function about changes - * - * Event explanation: - * - * In the netconn implementation, there are three ways to block a client: - * - * - accept mbox (sys_arch_mbox_fetch(&conn->acceptmbox, &accept_ptr, 0); in netconn_accept()) - * - receive mbox (sys_arch_mbox_fetch(&conn->recvmbox, &buf, 0); in netconn_recv_data()) - * - send queue is full (sys_arch_sem_wait(LWIP_API_MSG_SEM(msg), 0); in lwip_netconn_do_write()) - * - * The events have to be seen as events signaling the state of these mboxes/semaphores. For non-blocking - * connections, you need to know in advance whether a call to a netconn function call would block or not, - * and these events tell you about that. - * - * RCVPLUS events say: Safe to perform a potentially blocking call call once more. - * They are counted in sockets - three RCVPLUS events for accept mbox means you are safe - * to call netconn_accept 3 times without being blocked. - * Same thing for receive mbox. - * - * RCVMINUS events say: Your call to to a possibly blocking function is "acknowledged". - * Socket implementation decrements the counter. - * - * For TX, there is no need to count, its merely a flag. SENDPLUS means you may send something. - * SENDPLUS occurs when enough data was delivered to peer so netconn_send() can be called again. - * A SENDMINUS event occurs when the next call to a netconn_send() would be blocking. - */ -enum netconn_evt { - NETCONN_EVT_RCVPLUS, - NETCONN_EVT_RCVMINUS, - NETCONN_EVT_SENDPLUS, - NETCONN_EVT_SENDMINUS, - NETCONN_EVT_ERROR -}; - -#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) -/** Used for netconn_join_leave_group() */ -enum netconn_igmp { - NETCONN_JOIN, - NETCONN_LEAVE -}; -#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */ - -#if LWIP_DNS -/* Used for netconn_gethostbyname_addrtype(), these should match the DNS_ADDRTYPE defines in dns.h */ -#define NETCONN_DNS_DEFAULT NETCONN_DNS_IPV4_IPV6 -#define NETCONN_DNS_IPV4 0 -#define NETCONN_DNS_IPV6 1 -#define NETCONN_DNS_IPV4_IPV6 2 /* try to resolve IPv4 first, try IPv6 if IPv4 fails only */ -#define NETCONN_DNS_IPV6_IPV4 3 /* try to resolve IPv6 first, try IPv4 if IPv6 fails only */ -#endif /* LWIP_DNS */ - -/* forward-declare some structs to avoid to include their headers */ -struct ip_pcb; -struct tcp_pcb; -struct udp_pcb; -struct raw_pcb; -struct netconn; -struct api_msg; - -/** A callback prototype to inform about events for a netconn */ -typedef void (* netconn_callback)(struct netconn *, enum netconn_evt, u16_t len); - -/** A netconn descriptor */ -struct netconn { - /** type of the netconn (TCP, UDP or RAW) */ - enum netconn_type type; - /** current state of the netconn */ - enum netconn_state state; - /** the lwIP internal protocol control block */ - union { - struct ip_pcb *ip; - struct tcp_pcb *tcp; - struct udp_pcb *udp; - struct raw_pcb *raw; - } pcb; - /** the last asynchronous unreported error this netconn had */ - err_t pending_err; -#if !LWIP_NETCONN_SEM_PER_THREAD - /** sem that is used to synchronously execute functions in the core context */ - sys_sem_t op_completed; -#endif - /** mbox where received packets are stored until they are fetched - by the netconn application thread (can grow quite big) */ - sys_mbox_t recvmbox; -#if LWIP_TCP - /** mbox where new connections are stored until processed - by the application thread */ - sys_mbox_t acceptmbox; -#endif /* LWIP_TCP */ -#if LWIP_NETCONN_FULLDUPLEX - /** number of threads waiting on an mbox. This is required to unblock - all threads when closing while threads are waiting. */ - int mbox_threads_waiting; -#endif - /** only used for socket layer */ -#if LWIP_SOCKET - int socket; -#endif /* LWIP_SOCKET */ -#if LWIP_SO_SNDTIMEO - /** timeout to wait for sending data (which means enqueueing data for sending - in internal buffers) in milliseconds */ - s32_t send_timeout; -#endif /* LWIP_SO_RCVTIMEO */ -#if LWIP_SO_RCVTIMEO - /** timeout in milliseconds to wait for new data to be received - (or connections to arrive for listening netconns) */ - u32_t recv_timeout; -#endif /* LWIP_SO_RCVTIMEO */ -#if LWIP_SO_RCVBUF - /** maximum amount of bytes queued in recvmbox - not used for TCP: adjust TCP_WND instead! */ - int recv_bufsize; - /** number of bytes currently in recvmbox to be received, - tested against recv_bufsize to limit bytes on recvmbox - for UDP and RAW, used for FIONREAD */ - int recv_avail; -#endif /* LWIP_SO_RCVBUF */ -#if LWIP_SO_LINGER - /** values <0 mean linger is disabled, values > 0 are seconds to linger */ - s16_t linger; -#endif /* LWIP_SO_LINGER */ - /** flags holding more netconn-internal state, see NETCONN_FLAG_* defines */ - u8_t flags; -#if LWIP_TCP - /** TCP: when data passed to netconn_write doesn't fit into the send buffer, - this temporarily stores the message. - Also used during connect and close. */ - struct api_msg *current_msg; -#endif /* LWIP_TCP */ - /** A callback function that is informed about events for this netconn */ - netconn_callback callback; -}; - -/** This vector type is passed to @ref netconn_write_vectors_partly to send - * multiple buffers at once. - * ATTENTION: This type has to directly map struct iovec since one is casted - * into the other! - */ -struct netvector { - /** pointer to the application buffer that contains the data to send */ - const void *ptr; - /** size of the application data to send */ - size_t len; -}; - -/** Register an Network connection event */ -#define API_EVENT(c,e,l) if (c->callback) { \ - (*c->callback)(c, e, l); \ - } - -/* Network connection functions: */ - -/** @ingroup netconn_common - * Create new netconn connection - * @param t @ref netconn_type */ -#define netconn_new(t) netconn_new_with_proto_and_callback(t, 0, NULL) -#define netconn_new_with_callback(t, c) netconn_new_with_proto_and_callback(t, 0, c) -struct netconn *netconn_new_with_proto_and_callback(enum netconn_type t, u8_t proto, - netconn_callback callback); -err_t netconn_prepare_delete(struct netconn *conn); -err_t netconn_delete(struct netconn *conn); -/** Get the type of a netconn (as enum netconn_type). */ -#define netconn_type(conn) (conn->type) - -err_t netconn_getaddr(struct netconn *conn, ip_addr_t *addr, - u16_t *port, u8_t local); -/** @ingroup netconn_common */ -#define netconn_peer(c,i,p) netconn_getaddr(c,i,p,0) -/** @ingroup netconn_common */ -#define netconn_addr(c,i,p) netconn_getaddr(c,i,p,1) - -err_t netconn_bind(struct netconn *conn, const ip_addr_t *addr, u16_t port); -err_t netconn_bind_if(struct netconn *conn, u8_t if_idx); -err_t netconn_connect(struct netconn *conn, const ip_addr_t *addr, u16_t port); -err_t netconn_disconnect (struct netconn *conn); -err_t netconn_listen_with_backlog(struct netconn *conn, u8_t backlog); -/** @ingroup netconn_tcp */ -#define netconn_listen(conn) netconn_listen_with_backlog(conn, TCP_DEFAULT_LISTEN_BACKLOG) -err_t netconn_accept(struct netconn *conn, struct netconn **new_conn); -err_t netconn_recv(struct netconn *conn, struct netbuf **new_buf); -err_t netconn_recv_udp_raw_netbuf(struct netconn *conn, struct netbuf **new_buf); -err_t netconn_recv_udp_raw_netbuf_flags(struct netconn *conn, struct netbuf **new_buf, u8_t apiflags); -err_t netconn_recv_tcp_pbuf(struct netconn *conn, struct pbuf **new_buf); -err_t netconn_recv_tcp_pbuf_flags(struct netconn *conn, struct pbuf **new_buf, u8_t apiflags); -err_t netconn_tcp_recvd(struct netconn *conn, size_t len); -err_t netconn_sendto(struct netconn *conn, struct netbuf *buf, - const ip_addr_t *addr, u16_t port); -err_t netconn_send(struct netconn *conn, struct netbuf *buf); -err_t netconn_write_partly(struct netconn *conn, const void *dataptr, size_t size, - u8_t apiflags, size_t *bytes_written); -err_t netconn_write_vectors_partly(struct netconn *conn, struct netvector *vectors, u16_t vectorcnt, - u8_t apiflags, size_t *bytes_written); -/** @ingroup netconn_tcp */ -#define netconn_write(conn, dataptr, size, apiflags) \ - netconn_write_partly(conn, dataptr, size, apiflags, NULL) -err_t netconn_close(struct netconn *conn); -err_t netconn_shutdown(struct netconn *conn, u8_t shut_rx, u8_t shut_tx); - -#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) -err_t netconn_join_leave_group(struct netconn *conn, const ip_addr_t *multiaddr, - const ip_addr_t *netif_addr, enum netconn_igmp join_or_leave); -err_t netconn_join_leave_group_netif(struct netconn *conn, const ip_addr_t *multiaddr, - u8_t if_idx, enum netconn_igmp join_or_leave); -#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */ -#if LWIP_DNS -#if LWIP_IPV4 && LWIP_IPV6 -err_t netconn_gethostbyname_addrtype(const char *name, ip_addr_t *addr, u8_t dns_addrtype); -#define netconn_gethostbyname(name, addr) netconn_gethostbyname_addrtype(name, addr, NETCONN_DNS_DEFAULT) -#else /* LWIP_IPV4 && LWIP_IPV6 */ -err_t netconn_gethostbyname(const char *name, ip_addr_t *addr); -#define netconn_gethostbyname_addrtype(name, addr, dns_addrtype) netconn_gethostbyname(name, addr) -#endif /* LWIP_IPV4 && LWIP_IPV6 */ -#endif /* LWIP_DNS */ - -err_t netconn_err(struct netconn *conn); -#define netconn_recv_bufsize(conn) ((conn)->recv_bufsize) - -#define netconn_set_flags(conn, set_flags) do { (conn)->flags = (u8_t)((conn)->flags | (set_flags)); } while(0) -#define netconn_clear_flags(conn, clr_flags) do { (conn)->flags = (u8_t)((conn)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0) -#define netconn_is_flag_set(conn, flag) (((conn)->flags & (flag)) != 0) - -/** Set the blocking status of netconn calls (@todo: write/send is missing) */ -#define netconn_set_nonblocking(conn, val) do { if(val) { \ - netconn_set_flags(conn, NETCONN_FLAG_NON_BLOCKING); \ -} else { \ - netconn_clear_flags(conn, NETCONN_FLAG_NON_BLOCKING); }} while(0) -/** Get the blocking status of netconn calls (@todo: write/send is missing) */ -#define netconn_is_nonblocking(conn) (((conn)->flags & NETCONN_FLAG_NON_BLOCKING) != 0) - -#if LWIP_IPV6 -/** @ingroup netconn_common - * TCP: Set the IPv6 ONLY status of netconn calls (see NETCONN_FLAG_IPV6_V6ONLY) - */ -#define netconn_set_ipv6only(conn, val) do { if(val) { \ - netconn_set_flags(conn, NETCONN_FLAG_IPV6_V6ONLY); \ -} else { \ - netconn_clear_flags(conn, NETCONN_FLAG_IPV6_V6ONLY); }} while(0) -/** @ingroup netconn_common - * TCP: Get the IPv6 ONLY status of netconn calls (see NETCONN_FLAG_IPV6_V6ONLY) - */ -#define netconn_get_ipv6only(conn) (((conn)->flags & NETCONN_FLAG_IPV6_V6ONLY) != 0) -#endif /* LWIP_IPV6 */ - -#if LWIP_SO_SNDTIMEO -/** Set the send timeout in milliseconds */ -#define netconn_set_sendtimeout(conn, timeout) ((conn)->send_timeout = (timeout)) -/** Get the send timeout in milliseconds */ -#define netconn_get_sendtimeout(conn) ((conn)->send_timeout) -#endif /* LWIP_SO_SNDTIMEO */ -#if LWIP_SO_RCVTIMEO -/** Set the receive timeout in milliseconds */ -#define netconn_set_recvtimeout(conn, timeout) ((conn)->recv_timeout = (timeout)) -/** Get the receive timeout in milliseconds */ -#define netconn_get_recvtimeout(conn) ((conn)->recv_timeout) -#endif /* LWIP_SO_RCVTIMEO */ -#if LWIP_SO_RCVBUF -/** Set the receive buffer in bytes */ -#define netconn_set_recvbufsize(conn, recvbufsize) ((conn)->recv_bufsize = (recvbufsize)) -/** Get the receive buffer in bytes */ -#define netconn_get_recvbufsize(conn) ((conn)->recv_bufsize) -#endif /* LWIP_SO_RCVBUF*/ - -#if LWIP_NETCONN_SEM_PER_THREAD -void netconn_thread_init(void); -void netconn_thread_cleanup(void); -#else /* LWIP_NETCONN_SEM_PER_THREAD */ -#define netconn_thread_init() -#define netconn_thread_cleanup() -#endif /* LWIP_NETCONN_SEM_PER_THREAD */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_NETCONN || LWIP_SOCKET */ - -#endif /* LWIP_HDR_API_H */ diff --git a/core/c/include/lwip/apps/FILES b/core/c/include/lwip/apps/FILES deleted file mode 100755 index c983076..0000000 --- a/core/c/include/lwip/apps/FILES +++ /dev/null @@ -1,2 +0,0 @@ -This directory contains application headers. -Every application shall provide one api file APP.h and optionally one options file APP_opts.h diff --git a/core/c/include/lwip/apps/altcp_proxyconnect.h b/core/c/include/lwip/apps/altcp_proxyconnect.h deleted file mode 100755 index a7c3527..0000000 --- a/core/c/include/lwip/apps/altcp_proxyconnect.h +++ /dev/null @@ -1,79 +0,0 @@ -/** - * @file - * Application layered TCP connection API that executes a proxy-connect. - * - * This file provides a starting layer that executes a proxy-connect e.g. to - * set up TLS connections through a http proxy. - */ - -/* - * Copyright (c) 2018 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ - -#ifndef LWIP_HDR_APPS_ALTCP_PROXYCONNECT_H -#define LWIP_HDR_APPS_ALTCP_PROXYCONNECT_H - -#include "lwip/opt.h" - -#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/ip_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct altcp_proxyconnect_config { - ip_addr_t proxy_addr; - u16_t proxy_port; -}; - - -struct altcp_pcb *altcp_proxyconnect_new(struct altcp_proxyconnect_config *config, struct altcp_pcb *inner_pcb); -struct altcp_pcb *altcp_proxyconnect_new_tcp(struct altcp_proxyconnect_config *config, u8_t ip_type); - -struct altcp_pcb *altcp_proxyconnect_alloc(void *arg, u8_t ip_type); - -#if LWIP_ALTCP_TLS -struct altcp_proxyconnect_tls_config { - struct altcp_proxyconnect_config proxy; - struct altcp_tls_config *tls_config; -}; - -struct altcp_pcb *altcp_proxyconnect_tls_alloc(void *arg, u8_t ip_type); -#endif /* LWIP_ALTCP_TLS */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_ALTCP */ -#endif /* LWIP_HDR_APPS_ALTCP_PROXYCONNECT_H */ diff --git a/core/c/include/lwip/apps/altcp_tls_mbedtls_opts.h b/core/c/include/lwip/apps/altcp_tls_mbedtls_opts.h deleted file mode 100755 index 63f72e3..0000000 --- a/core/c/include/lwip/apps/altcp_tls_mbedtls_opts.h +++ /dev/null @@ -1,67 +0,0 @@ -/** - * @file - * Application layered TCP/TLS connection API (to be used from TCPIP thread) - * - * This file contains options for an mbedtls port of the TLS layer. - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_ALTCP_TLS_OPTS_H -#define LWIP_HDR_ALTCP_TLS_OPTS_H - -#include "lwip/opt.h" - -#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ - -/** LWIP_ALTCP_TLS_MBEDTLS==1: use mbedTLS for TLS support for altcp API - * mbedtls include directory must be reachable via include search path - */ -#ifndef LWIP_ALTCP_TLS_MBEDTLS -#define LWIP_ALTCP_TLS_MBEDTLS 0 -#endif - -/** Configure debug level of this file */ -#ifndef ALTCP_MBEDTLS_DEBUG -#define ALTCP_MBEDTLS_DEBUG LWIP_DBG_OFF -#endif - -/** Set a session timeout in seconds for the basic session cache - * ATTENTION: Using a session cache can lower security by reusing keys! - */ -#ifndef ALTCP_MBEDTLS_SESSION_CACHE_TIMEOUT_SECONDS -#define ALTCP_MBEDTLS_SESSION_CACHE_TIMEOUT_SECONDS 0 -#endif - -#endif /* LWIP_ALTCP */ - -#endif /* LWIP_HDR_ALTCP_TLS_OPTS_H */ diff --git a/core/c/include/lwip/apps/fs.h b/core/c/include/lwip/apps/fs.h deleted file mode 100755 index 02bde1f..0000000 --- a/core/c/include/lwip/apps/fs.h +++ /dev/null @@ -1,126 +0,0 @@ -/* - * Copyright (c) 2001-2003 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_APPS_FS_H -#define LWIP_HDR_APPS_FS_H - -#include "httpd_opts.h" -#include "lwip/err.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define FS_READ_EOF -1 -#define FS_READ_DELAYED -2 - -#if HTTPD_PRECALCULATED_CHECKSUM -struct fsdata_chksum { - u32_t offset; - u16_t chksum; - u16_t len; -}; -#endif /* HTTPD_PRECALCULATED_CHECKSUM */ - -#define FS_FILE_FLAGS_HEADER_INCLUDED 0x01 -#define FS_FILE_FLAGS_HEADER_PERSISTENT 0x02 -#define FS_FILE_FLAGS_HEADER_HTTPVER_1_1 0x04 -#define FS_FILE_FLAGS_SSI 0x08 - -/** Define FS_FILE_EXTENSION_T_DEFINED if you have typedef'ed to your private - * pointer type (defaults to 'void' so the default usage is 'void*') - */ -#ifndef FS_FILE_EXTENSION_T_DEFINED -typedef void fs_file_extension; -#endif - -struct fs_file { - const char *data; - int len; - int index; - /* pextension is free for implementations to hold private (extensional) - arbitrary data, e.g. holding some file state or file system handle */ - fs_file_extension *pextension; -#if HTTPD_PRECALCULATED_CHECKSUM - const struct fsdata_chksum *chksum; - u16_t chksum_count; -#endif /* HTTPD_PRECALCULATED_CHECKSUM */ - u8_t flags; -#if LWIP_HTTPD_CUSTOM_FILES - u8_t is_custom_file; -#endif /* LWIP_HTTPD_CUSTOM_FILES */ -#if LWIP_HTTPD_FILE_STATE - void *state; -#endif /* LWIP_HTTPD_FILE_STATE */ -}; - -#if LWIP_HTTPD_FS_ASYNC_READ -typedef void (*fs_wait_cb)(void *arg); -#endif /* LWIP_HTTPD_FS_ASYNC_READ */ - -err_t fs_open(struct fs_file *file, const char *name); -void fs_close(struct fs_file *file); -#if LWIP_HTTPD_DYNAMIC_FILE_READ -#if LWIP_HTTPD_FS_ASYNC_READ -int fs_read_async(struct fs_file *file, char *buffer, int count, fs_wait_cb callback_fn, void *callback_arg); -#else /* LWIP_HTTPD_FS_ASYNC_READ */ -int fs_read(struct fs_file *file, char *buffer, int count); -#endif /* LWIP_HTTPD_FS_ASYNC_READ */ -#endif /* LWIP_HTTPD_DYNAMIC_FILE_READ */ -#if LWIP_HTTPD_FS_ASYNC_READ -int fs_is_file_ready(struct fs_file *file, fs_wait_cb callback_fn, void *callback_arg); -#endif /* LWIP_HTTPD_FS_ASYNC_READ */ -int fs_bytes_left(struct fs_file *file); - -#if LWIP_HTTPD_FILE_STATE -/** This user-defined function is called when a file is opened. */ -void *fs_state_init(struct fs_file *file, const char *name); -/** This user-defined function is called when a file is closed. */ -void fs_state_free(struct fs_file *file, void *state); -#endif /* #if LWIP_HTTPD_FILE_STATE */ - -struct fsdata_file { - const struct fsdata_file *next; - const unsigned char *name; - const unsigned char *data; - int len; - u8_t flags; -#if HTTPD_PRECALCULATED_CHECKSUM - u16_t chksum_count; - const struct fsdata_chksum *chksum; -#endif /* HTTPD_PRECALCULATED_CHECKSUM */ -}; - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_FS_H */ diff --git a/core/c/include/lwip/apps/http_client.h b/core/c/include/lwip/apps/http_client.h deleted file mode 100755 index f4754b3..0000000 --- a/core/c/include/lwip/apps/http_client.h +++ /dev/null @@ -1,160 +0,0 @@ -/** - * @file - * HTTP client - */ - -/* - * Copyright (c) 2018 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ - -#ifndef LWIP_HDR_APPS_HTTP_CLIENT_H -#define LWIP_HDR_APPS_HTTP_CLIENT_H - -#include "lwip/opt.h" -#include "lwip/ip_addr.h" -#include "lwip/err.h" -#include "lwip/altcp.h" -#include "lwip/prot/iana.h" -#include "lwip/pbuf.h" - -#if LWIP_TCP && LWIP_CALLBACK_API - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * @ingroup httpc - * HTTPC_HAVE_FILE_IO: define this to 1 to have functions dowloading directly - * to disk via fopen/fwrite. - * These functions are example implementations of the interface only. - */ -#ifndef LWIP_HTTPC_HAVE_FILE_IO -#define LWIP_HTTPC_HAVE_FILE_IO 0 -#endif - -/** - * @ingroup httpc - * The default TCP port used for HTTP - */ -#define HTTP_DEFAULT_PORT LWIP_IANA_PORT_HTTP - -/** - * @ingroup httpc - * HTTP client result codes - */ -typedef enum ehttpc_result { - /** File successfully received */ - HTTPC_RESULT_OK = 0, - /** Unknown error */ - HTTPC_RESULT_ERR_UNKNOWN = 1, - /** Connection to server failed */ - HTTPC_RESULT_ERR_CONNECT = 2, - /** Failed to resolve server hostname */ - HTTPC_RESULT_ERR_HOSTNAME = 3, - /** Connection unexpectedly closed by remote server */ - HTTPC_RESULT_ERR_CLOSED = 4, - /** Connection timed out (server didn't respond in time) */ - HTTPC_RESULT_ERR_TIMEOUT = 5, - /** Server responded with an error code */ - HTTPC_RESULT_ERR_SVR_RESP = 6, - /** Local memory error */ - HTTPC_RESULT_ERR_MEM = 7, - /** Local abort */ - HTTPC_RESULT_LOCAL_ABORT = 8, - /** Content length mismatch */ - HTTPC_RESULT_ERR_CONTENT_LEN = 9 -} httpc_result_t; - -typedef struct _httpc_state httpc_state_t; - -/** - * @ingroup httpc - * Prototype of a http client callback function - * - * @param arg argument specified when initiating the request - * @param httpc_result result of the http transfer (see enum httpc_result_t) - * @param rx_content_len number of bytes received (without headers) - * @param srv_res this contains the http status code received (if any) - * @param err an error returned by internal lwip functions, can help to specify - * the source of the error but must not necessarily be != ERR_OK - */ -typedef void (*httpc_result_fn)(void *arg, httpc_result_t httpc_result, u32_t rx_content_len, u32_t srv_res, err_t err); - -/** - * @ingroup httpc - * Prototype of http client callback: called when the headers are received - * - * @param connection http client connection - * @param arg argument specified when initiating the request - * @param hdr header pbuf(s) (may contain data also) - * @param hdr_len length of the heders in 'hdr' - * @param content_len content length as received in the headers (-1 if not received) - * @return if != ERR_OK is returned, the connection is aborted - */ -typedef err_t (*httpc_headers_done_fn)(httpc_state_t *connection, void *arg, struct pbuf *hdr, u16_t hdr_len, u32_t content_len); - -typedef struct _httpc_connection { - ip_addr_t proxy_addr; - u16_t proxy_port; - u8_t use_proxy; - /* @todo: add username:pass? */ - -#if LWIP_ALTCP - altcp_allocator_t *altcp_allocator; -#endif - - /* this callback is called when the transfer is finished (or aborted) */ - httpc_result_fn result_fn; - /* this callback is called after receiving the http headers - It can abort the connection by returning != ERR_OK */ - httpc_headers_done_fn headers_done_fn; -} httpc_connection_t; - -err_t httpc_get_file(const ip_addr_t* server_addr, u16_t port, const char* uri, const httpc_connection_t *settings, - altcp_recv_fn recv_fn, void* callback_arg, httpc_state_t **connection); -err_t httpc_get_file_dns(const char* server_name, u16_t port, const char* uri, const httpc_connection_t *settings, - altcp_recv_fn recv_fn, void* callback_arg, httpc_state_t **connection); - -#if LWIP_HTTPC_HAVE_FILE_IO -err_t httpc_get_file_to_disk(const ip_addr_t* server_addr, u16_t port, const char* uri, const httpc_connection_t *settings, - void* callback_arg, const char* local_file_name, httpc_state_t **connection); -err_t httpc_get_file_dns_to_disk(const char* server_name, u16_t port, const char* uri, const httpc_connection_t *settings, - void* callback_arg, const char* local_file_name, httpc_state_t **connection); -#endif /* LWIP_HTTPC_HAVE_FILE_IO */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_TCP && LWIP_CALLBACK_API */ - -#endif /* LWIP_HDR_APPS_HTTP_CLIENT_H */ diff --git a/core/c/include/lwip/apps/httpd.h b/core/c/include/lwip/apps/httpd.h deleted file mode 100755 index 615261e..0000000 --- a/core/c/include/lwip/apps/httpd.h +++ /dev/null @@ -1,255 +0,0 @@ -/** - * @file - * HTTP server - */ - -/* - * Copyright (c) 2001-2003 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - * This version of the file has been modified by Texas Instruments to offer - * simple server-side-include (SSI) and Common Gateway Interface (CGI) - * capability. - */ - -#ifndef LWIP_HDR_APPS_HTTPD_H -#define LWIP_HDR_APPS_HTTPD_H - -#include "httpd_opts.h" -#include "lwip/err.h" -#include "lwip/pbuf.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_HTTPD_CGI - -/** - * @ingroup httpd - * Function pointer for a CGI script handler. - * - * This function is called each time the HTTPD server is asked for a file - * whose name was previously registered as a CGI function using a call to - * http_set_cgi_handlers. The iIndex parameter provides the index of the - * CGI within the cgis array passed to http_set_cgi_handlers. Parameters - * pcParam and pcValue provide access to the parameters provided along with - * the URI. iNumParams provides a count of the entries in the pcParam and - * pcValue arrays. Each entry in the pcParam array contains the name of a - * parameter with the corresponding entry in the pcValue array containing the - * value for that parameter. Note that pcParam may contain multiple elements - * with the same name if, for example, a multi-selection list control is used - * in the form generating the data. - * - * The function should return a pointer to a character string which is the - * path and filename of the response that is to be sent to the connected - * browser, for example "/thanks.htm" or "/response/error.ssi". - * - * The maximum number of parameters that will be passed to this function via - * iNumParams is defined by LWIP_HTTPD_MAX_CGI_PARAMETERS. Any parameters in - * the incoming HTTP request above this number will be discarded. - * - * Requests intended for use by this CGI mechanism must be sent using the GET - * method (which encodes all parameters within the URI rather than in a block - * later in the request). Attempts to use the POST method will result in the - * request being ignored. - * - */ -typedef const char *(*tCGIHandler)(int iIndex, int iNumParams, char *pcParam[], - char *pcValue[]); - -/** - * @ingroup httpd - * Structure defining the base filename (URL) of a CGI and the associated - * function which is to be called when that URL is requested. - */ -typedef struct -{ - const char *pcCGIName; - tCGIHandler pfnCGIHandler; -} tCGI; - -void http_set_cgi_handlers(const tCGI *pCGIs, int iNumHandlers); - -#endif /* LWIP_HTTPD_CGI */ - -#if LWIP_HTTPD_CGI || LWIP_HTTPD_CGI_SSI - -#if LWIP_HTTPD_CGI_SSI -/* we have to prototype this struct here to make it available for the handler */ -struct fs_file; - -/** Define this generic CGI handler in your application. - * It is called once for every URI with parameters. - * The parameters can be stored to the object passed as connection_state, which - * is allocated to file->state via fs_state_init() from fs_open() or fs_open_custom(). - * Content creation via SSI or complete dynamic files can retrieve the CGI params from there. - */ -extern void httpd_cgi_handler(struct fs_file *file, const char* uri, int iNumParams, - char **pcParam, char **pcValue -#if defined(LWIP_HTTPD_FILE_STATE) && LWIP_HTTPD_FILE_STATE - , void *connection_state -#endif /* LWIP_HTTPD_FILE_STATE */ - ); -#endif /* LWIP_HTTPD_CGI_SSI */ - -#endif /* LWIP_HTTPD_CGI || LWIP_HTTPD_CGI_SSI */ - -#if LWIP_HTTPD_SSI - -/** - * @ingroup httpd - * Function pointer for the SSI tag handler callback. - * - * This function will be called each time the HTTPD server detects a tag of the - * form in files with extensions mentioned in the g_pcSSIExtensions - * array (currently .shtml, .shtm, .ssi, .xml, .json) where "name" appears as - * one of the tags supplied to http_set_ssi_handler in the tags array. The - * returned insert string, which will be appended after the the string - * "" in file sent back to the client, should be written to pointer - * pcInsert. iInsertLen contains the size of the buffer pointed to by - * pcInsert. The iIndex parameter provides the zero-based index of the tag as - * found in the tags array and identifies the tag that is to be processed. - * - * The handler returns the number of characters written to pcInsert excluding - * any terminating NULL or HTTPD_SSI_TAG_UNKNOWN when tag is not recognized. - * - * Note that the behavior of this SSI mechanism is somewhat different from the - * "normal" SSI processing as found in, for example, the Apache web server. In - * this case, the inserted text is appended following the SSI tag rather than - * replacing the tag entirely. This allows for an implementation that does not - * require significant additional buffering of output data yet which will still - * offer usable SSI functionality. One downside to this approach is when - * attempting to use SSI within JavaScript. The SSI tag is structured to - * resemble an HTML comment but this syntax does not constitute a comment - * within JavaScript and, hence, leaving the tag in place will result in - * problems in these cases. In order to avoid these problems, define - * LWIP_HTTPD_SSI_INCLUDE_TAG as zero in your lwip options file, or use JavaScript - * style block comments in the form / * # name * / (without the spaces). - */ -typedef u16_t (*tSSIHandler)( -#if LWIP_HTTPD_SSI_RAW - const char* ssi_tag_name, -#else /* LWIP_HTTPD_SSI_RAW */ - int iIndex, -#endif /* LWIP_HTTPD_SSI_RAW */ - char *pcInsert, int iInsertLen -#if LWIP_HTTPD_SSI_MULTIPART - , u16_t current_tag_part, u16_t *next_tag_part -#endif /* LWIP_HTTPD_SSI_MULTIPART */ -#if defined(LWIP_HTTPD_FILE_STATE) && LWIP_HTTPD_FILE_STATE - , void *connection_state -#endif /* LWIP_HTTPD_FILE_STATE */ - ); - -/** Set the SSI handler function - * (if LWIP_HTTPD_SSI_RAW==1, only the first argument is used) - */ -void http_set_ssi_handler(tSSIHandler pfnSSIHandler, - const char **ppcTags, int iNumTags); - -/** For LWIP_HTTPD_SSI_RAW==1, return this to indicate the tag is unknown. - * In this case, the webserver writes a warning into the page. - * You can also just return 0 to write nothing for unknown tags. - */ -#define HTTPD_SSI_TAG_UNKNOWN 0xFFFF - -#endif /* LWIP_HTTPD_SSI */ - -#if LWIP_HTTPD_SUPPORT_POST - -/* These functions must be implemented by the application */ - -/** - * @ingroup httpd - * Called when a POST request has been received. The application can decide - * whether to accept it or not. - * - * @param connection Unique connection identifier, valid until httpd_post_end - * is called. - * @param uri The HTTP header URI receiving the POST request. - * @param http_request The raw HTTP request (the first packet, normally). - * @param http_request_len Size of 'http_request'. - * @param content_len Content-Length from HTTP header. - * @param response_uri Filename of response file, to be filled when denying the - * request - * @param response_uri_len Size of the 'response_uri' buffer. - * @param post_auto_wnd Set this to 0 to let the callback code handle window - * updates by calling 'httpd_post_data_recved' (to throttle rx speed) - * default is 1 (httpd handles window updates automatically) - * @return ERR_OK: Accept the POST request, data may be passed in - * another err_t: Deny the POST request, send back 'bad request'. - */ -err_t httpd_post_begin(void *connection, const char *uri, const char *http_request, - u16_t http_request_len, int content_len, char *response_uri, - u16_t response_uri_len, u8_t *post_auto_wnd); - -/** - * @ingroup httpd - * Called for each pbuf of data that has been received for a POST. - * ATTENTION: The application is responsible for freeing the pbufs passed in! - * - * @param connection Unique connection identifier. - * @param p Received data. - * @return ERR_OK: Data accepted. - * another err_t: Data denied, http_post_get_response_uri will be called. - */ -err_t httpd_post_receive_data(void *connection, struct pbuf *p); - -/** - * @ingroup httpd - * Called when all data is received or when the connection is closed. - * The application must return the filename/URI of a file to send in response - * to this POST request. If the response_uri buffer is untouched, a 404 - * response is returned. - * - * @param connection Unique connection identifier. - * @param response_uri Filename of response file, to be filled when denying the request - * @param response_uri_len Size of the 'response_uri' buffer. - */ -void httpd_post_finished(void *connection, char *response_uri, u16_t response_uri_len); - -#if LWIP_HTTPD_POST_MANUAL_WND -void httpd_post_data_recved(void *connection, u16_t recved_len); -#endif /* LWIP_HTTPD_POST_MANUAL_WND */ - -#endif /* LWIP_HTTPD_SUPPORT_POST */ - -void httpd_init(void); - -#if HTTPD_ENABLE_HTTPS -struct altcp_tls_config; -void httpd_inits(struct altcp_tls_config *conf); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_HTTPD_H */ diff --git a/core/c/include/lwip/apps/httpd_opts.h b/core/c/include/lwip/apps/httpd_opts.h deleted file mode 100755 index 733e117..0000000 --- a/core/c/include/lwip/apps/httpd_opts.h +++ /dev/null @@ -1,396 +0,0 @@ -/** - * @file - * HTTP server options list - */ - -/* - * Copyright (c) 2001-2003 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - * This version of the file has been modified by Texas Instruments to offer - * simple server-side-include (SSI) and Common Gateway Interface (CGI) - * capability. - */ - -#ifndef LWIP_HDR_APPS_HTTPD_OPTS_H -#define LWIP_HDR_APPS_HTTPD_OPTS_H - -#include "lwip/opt.h" -#include "lwip/prot/iana.h" - -/** - * @defgroup httpd_opts Options - * @ingroup httpd - * @{ - */ - -/** Set this to 1 to support CGI (old style). - * - * This old style CGI support works by registering an array of URLs and - * associated CGI handler functions (@ref http_set_cgi_handlers). - * This list is scanned just before fs_open is called from request handling. - * The handler can return a new URL that is used internally by the httpd to - * load the returned page (passed to fs_open). - * - * Use this CGI type e.g. to execute specific actions and return a page that - * does not depend on the CGI parameters. - */ -#if !defined LWIP_HTTPD_CGI || defined __DOXYGEN__ -#define LWIP_HTTPD_CGI 0 -#endif - -/** Set this to 1 to support CGI (new style). - * - * This new style CGI support works by calling a global function - * (@ref tCGIHandler) for all URLs that are found. fs_open is called first - * and the URL can not be written by the CGI handler. Instead, this handler gets - * passed the http file state, an object where it can store information derived - * from the CGI URL or parameters. This file state is later passed to SSI, so - * the SSI code can return data depending on CGI input. - * - * Use this CGI handler if you want CGI information passed on to SSI. - */ -#if !defined LWIP_HTTPD_CGI_SSI || defined __DOXYGEN__ -#define LWIP_HTTPD_CGI_SSI 0 -#endif - -/** Set this to 1 to support SSI (Server-Side-Includes) - * - * In contrast to other http servers, this only calls a preregistered callback - * function (@see http_set_ssi_handler) for each tag (in the format of - * ) encountered in SSI-enabled pages. - * SSI-enabled pages must have one of the predefined SSI-enabled file extensions. - * All files with one of these extensions are parsed when sent. - * - * A downside of the current SSI implementation is that persistent connections - * don't work, as the file length is not known in advance (and httpd currently - * relies on the Content-Length header for persistent connections). - * - * To save memory, the maximum tag length is limited (@see LWIP_HTTPD_MAX_TAG_NAME_LEN). - * To save memory, the maximum insertion string length is limited (@see - * LWIP_HTTPD_MAX_TAG_INSERT_LEN). If this is not enought, @ref LWIP_HTTPD_SSI_MULTIPART - * can be used. - */ -#if !defined LWIP_HTTPD_SSI || defined __DOXYGEN__ -#define LWIP_HTTPD_SSI 0 -#endif - -/** Set this to 1 to implement an SSI tag handler callback that gets a const char* - * to the tag (instead of an index into a pre-registered array of known tags) - * If this is 0, the SSI handler callback function is only called pre-registered tags. - */ -#if !defined LWIP_HTTPD_SSI_RAW || defined __DOXYGEN__ -#define LWIP_HTTPD_SSI_RAW 0 -#endif - -/** Set this to 0 to prevent parsing the file extension at runtime to decide - * if a file should be scanned for SSI tags or not. - * Default is 1 (file extensions are checked using the g_pcSSIExtensions array) - * Set to 2 to override this runtime test function. - * - * This is enabled by default, but if you only use a newer version of makefsdata - * supporting the "-ssi" option, this info is already present in - */ -#if !defined LWIP_HTTPD_SSI_BY_FILE_EXTENSION || defined __DOXYGEN__ -#define LWIP_HTTPD_SSI_BY_FILE_EXTENSION 1 -#endif - -/** Set this to 1 to support HTTP POST */ -#if !defined LWIP_HTTPD_SUPPORT_POST || defined __DOXYGEN__ -#define LWIP_HTTPD_SUPPORT_POST 0 -#endif - -/* The maximum number of parameters that the CGI handler can be sent. */ -#if !defined LWIP_HTTPD_MAX_CGI_PARAMETERS || defined __DOXYGEN__ -#define LWIP_HTTPD_MAX_CGI_PARAMETERS 16 -#endif - -/** LWIP_HTTPD_SSI_MULTIPART==1: SSI handler function is called with 2 more - * arguments indicating a counter for insert string that are too long to be - * inserted at once: the SSI handler function must then set 'next_tag_part' - * which will be passed back to it in the next call. */ -#if !defined LWIP_HTTPD_SSI_MULTIPART || defined __DOXYGEN__ -#define LWIP_HTTPD_SSI_MULTIPART 0 -#endif - -/* The maximum length of the string comprising the SSI tag name - * ATTENTION: tags longer than this are ignored, not truncated! - */ -#if !defined LWIP_HTTPD_MAX_TAG_NAME_LEN || defined __DOXYGEN__ -#define LWIP_HTTPD_MAX_TAG_NAME_LEN 8 -#endif - -/* The maximum length of string that can be returned to replace any given tag - * If this buffer is not long enough, use LWIP_HTTPD_SSI_MULTIPART. - */ -#if !defined LWIP_HTTPD_MAX_TAG_INSERT_LEN || defined __DOXYGEN__ -#define LWIP_HTTPD_MAX_TAG_INSERT_LEN 192 -#endif - -#if !defined LWIP_HTTPD_POST_MANUAL_WND || defined __DOXYGEN__ -#define LWIP_HTTPD_POST_MANUAL_WND 0 -#endif - -/** This string is passed in the HTTP header as "Server: " */ -#if !defined HTTPD_SERVER_AGENT || defined __DOXYGEN__ -#define HTTPD_SERVER_AGENT "lwIP/" LWIP_VERSION_STRING " (http://savannah.nongnu.org/projects/lwip)" -#endif - -/** Set this to 1 if you want to include code that creates HTTP headers - * at runtime. Default is off: HTTP headers are then created statically - * by the makefsdata tool. Static headers mean smaller code size, but - * the (readonly) fsdata will grow a bit as every file includes the HTTP - * header. */ -#if !defined LWIP_HTTPD_DYNAMIC_HEADERS || defined __DOXYGEN__ -#define LWIP_HTTPD_DYNAMIC_HEADERS 0 -#endif - -#if !defined HTTPD_DEBUG || defined __DOXYGEN__ -#define HTTPD_DEBUG LWIP_DBG_OFF -#endif - -/** Set this to 1 to use a memp pool for allocating - * struct http_state instead of the heap. - * If enabled, you'll need to define MEMP_NUM_PARALLEL_HTTPD_CONNS - * (and MEMP_NUM_PARALLEL_HTTPD_SSI_CONNS for SSI) to set the size of - * the pool(s). - */ -#if !defined HTTPD_USE_MEM_POOL || defined __DOXYGEN__ -#define HTTPD_USE_MEM_POOL 0 -#endif - -/** The server port for HTTPD to use */ -#if !defined HTTPD_SERVER_PORT || defined __DOXYGEN__ -#define HTTPD_SERVER_PORT LWIP_IANA_PORT_HTTP -#endif - -/** The https server port for HTTPD to use */ -#if !defined HTTPD_SERVER_PORT_HTTPS || defined __DOXYGEN__ -#define HTTPD_SERVER_PORT_HTTPS LWIP_IANA_PORT_HTTPS -#endif - -/** Enable https support? */ -#if !defined HTTPD_ENABLE_HTTPS || defined __DOXYGEN__ -#define HTTPD_ENABLE_HTTPS 0 -#endif - -/** Maximum retries before the connection is aborted/closed. - * - number of times pcb->poll is called -> default is 4*500ms = 2s; - * - reset when pcb->sent is called - */ -#if !defined HTTPD_MAX_RETRIES || defined __DOXYGEN__ -#define HTTPD_MAX_RETRIES 4 -#endif - -/** The poll delay is X*500ms */ -#if !defined HTTPD_POLL_INTERVAL || defined __DOXYGEN__ -#define HTTPD_POLL_INTERVAL 4 -#endif - -/** Priority for tcp pcbs created by HTTPD (very low by default). - * Lower priorities get killed first when running out of memory. - */ -#if !defined HTTPD_TCP_PRIO || defined __DOXYGEN__ -#define HTTPD_TCP_PRIO TCP_PRIO_MIN -#endif - -/** Set this to 1 to enable timing each file sent */ -#if !defined LWIP_HTTPD_TIMING || defined __DOXYGEN__ -#define LWIP_HTTPD_TIMING 0 -#endif -/** Set this to 1 to enable timing each file sent */ -#if !defined HTTPD_DEBUG_TIMING || defined __DOXYGEN__ -#define HTTPD_DEBUG_TIMING LWIP_DBG_OFF -#endif - -/** Set this to one to show error pages when parsing a request fails instead - of simply closing the connection. */ -#if !defined LWIP_HTTPD_SUPPORT_EXTSTATUS || defined __DOXYGEN__ -#define LWIP_HTTPD_SUPPORT_EXTSTATUS 0 -#endif - -/** Set this to 0 to drop support for HTTP/0.9 clients (to save some bytes) */ -#if !defined LWIP_HTTPD_SUPPORT_V09 || defined __DOXYGEN__ -#define LWIP_HTTPD_SUPPORT_V09 1 -#endif - -/** Set this to 1 to enable HTTP/1.1 persistent connections. - * ATTENTION: If the generated file system includes HTTP headers, these must - * include the "Connection: keep-alive" header (pass argument "-11" to makefsdata). - */ -#if !defined LWIP_HTTPD_SUPPORT_11_KEEPALIVE || defined __DOXYGEN__ -#define LWIP_HTTPD_SUPPORT_11_KEEPALIVE 0 -#endif - -/** Set this to 1 to support HTTP request coming in in multiple packets/pbufs */ -#if !defined LWIP_HTTPD_SUPPORT_REQUESTLIST || defined __DOXYGEN__ -#define LWIP_HTTPD_SUPPORT_REQUESTLIST 1 -#endif - -#if LWIP_HTTPD_SUPPORT_REQUESTLIST -/** Number of rx pbufs to enqueue to parse an incoming request (up to the first - newline) */ -#if !defined LWIP_HTTPD_REQ_QUEUELEN || defined __DOXYGEN__ -#define LWIP_HTTPD_REQ_QUEUELEN 5 -#endif - -/** Number of (TCP payload-) bytes (in pbufs) to enqueue to parse and incoming - request (up to the first double-newline) */ -#if !defined LWIP_HTTPD_REQ_BUFSIZE || defined __DOXYGEN__ -#define LWIP_HTTPD_REQ_BUFSIZE LWIP_HTTPD_MAX_REQ_LENGTH -#endif - -/** Defines the maximum length of a HTTP request line (up to the first CRLF, - copied from pbuf into this a global buffer when pbuf- or packet-queues - are received - otherwise the input pbuf is used directly) */ -#if !defined LWIP_HTTPD_MAX_REQ_LENGTH || defined __DOXYGEN__ -#define LWIP_HTTPD_MAX_REQ_LENGTH LWIP_MIN(1023, (LWIP_HTTPD_REQ_QUEUELEN * PBUF_POOL_BUFSIZE)) -#endif -#endif /* LWIP_HTTPD_SUPPORT_REQUESTLIST */ - -/** This is the size of a static buffer used when URIs end with '/'. - * In this buffer, the directory requested is concatenated with all the - * configured default file names. - * Set to 0 to disable checking default filenames on non-root directories. - */ -#if !defined LWIP_HTTPD_MAX_REQUEST_URI_LEN || defined __DOXYGEN__ -#define LWIP_HTTPD_MAX_REQUEST_URI_LEN 63 -#endif - -/** Maximum length of the filename to send as response to a POST request, - * filled in by the application when a POST is finished. - */ -#if !defined LWIP_HTTPD_POST_MAX_RESPONSE_URI_LEN || defined __DOXYGEN__ -#define LWIP_HTTPD_POST_MAX_RESPONSE_URI_LEN 63 -#endif - -/** Set this to 0 to not send the SSI tag (default is on, so the tag will - * be sent in the HTML page */ -#if !defined LWIP_HTTPD_SSI_INCLUDE_TAG || defined __DOXYGEN__ -#define LWIP_HTTPD_SSI_INCLUDE_TAG 1 -#endif - -/** Set this to 1 to call tcp_abort when tcp_close fails with memory error. - * This can be used to prevent consuming all memory in situations where the - * HTTP server has low priority compared to other communication. */ -#if !defined LWIP_HTTPD_ABORT_ON_CLOSE_MEM_ERROR || defined __DOXYGEN__ -#define LWIP_HTTPD_ABORT_ON_CLOSE_MEM_ERROR 0 -#endif - -/** Set this to 1 to kill the oldest connection when running out of - * memory for 'struct http_state' or 'struct http_ssi_state'. - * ATTENTION: This puts all connections on a linked list, so may be kind of slow. - */ -#if !defined LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED || defined __DOXYGEN__ -#define LWIP_HTTPD_KILL_OLD_ON_CONNECTIONS_EXCEEDED 0 -#endif - -/** Set this to 1 to send URIs without extension without headers - * (who uses this at all??) */ -#if !defined LWIP_HTTPD_OMIT_HEADER_FOR_EXTENSIONLESS_URI || defined __DOXYGEN__ -#define LWIP_HTTPD_OMIT_HEADER_FOR_EXTENSIONLESS_URI 0 -#endif - -/** Default: Tags are sent from struct http_state and are therefore volatile */ -#if !defined HTTP_IS_TAG_VOLATILE || defined __DOXYGEN__ -#define HTTP_IS_TAG_VOLATILE(ptr) TCP_WRITE_FLAG_COPY -#endif - -/* By default, the httpd is limited to send 2*pcb->mss to keep resource usage low - when http is not an important protocol in the device. */ -#if !defined HTTPD_LIMIT_SENDING_TO_2MSS || defined __DOXYGEN__ -#define HTTPD_LIMIT_SENDING_TO_2MSS 1 -#endif - -/* Define this to a function that returns the maximum amount of data to enqueue. - The function have this signature: u16_t fn(struct altcp_pcb* pcb); - The best place to define this is the hooks file (@see LWIP_HOOK_FILENAME) */ -#if !defined HTTPD_MAX_WRITE_LEN || defined __DOXYGEN__ -#if HTTPD_LIMIT_SENDING_TO_2MSS -#define HTTPD_MAX_WRITE_LEN(pcb) ((u16_t)(2 * altcp_mss(pcb))) -#endif -#endif - -/*------------------- FS OPTIONS -------------------*/ - -/** Set this to 1 and provide the functions: - * - "int fs_open_custom(struct fs_file *file, const char *name)" - * Called first for every opened file to allow opening files - * that are not included in fsdata(_custom).c - * - "void fs_close_custom(struct fs_file *file)" - * Called to free resources allocated by fs_open_custom(). - */ -#if !defined LWIP_HTTPD_CUSTOM_FILES || defined __DOXYGEN__ -#define LWIP_HTTPD_CUSTOM_FILES 0 -#endif - -/** Set this to 1 to support fs_read() to dynamically read file data. - * Without this (default=off), only one-block files are supported, - * and the contents must be ready after fs_open(). - */ -#if !defined LWIP_HTTPD_DYNAMIC_FILE_READ || defined __DOXYGEN__ -#define LWIP_HTTPD_DYNAMIC_FILE_READ 0 -#endif - -/** Set this to 1 to include an application state argument per file - * that is opened. This allows to keep a state per connection/file. - */ -#if !defined LWIP_HTTPD_FILE_STATE || defined __DOXYGEN__ -#define LWIP_HTTPD_FILE_STATE 0 -#endif - -/** HTTPD_PRECALCULATED_CHECKSUM==1: include precompiled checksums for - * predefined (MSS-sized) chunks of the files to prevent having to calculate - * the checksums at runtime. */ -#if !defined HTTPD_PRECALCULATED_CHECKSUM || defined __DOXYGEN__ -#define HTTPD_PRECALCULATED_CHECKSUM 0 -#endif - -/** LWIP_HTTPD_FS_ASYNC_READ==1: support asynchronous read operations - * (fs_read_async returns FS_READ_DELAYED and calls a callback when finished). - */ -#if !defined LWIP_HTTPD_FS_ASYNC_READ || defined __DOXYGEN__ -#define LWIP_HTTPD_FS_ASYNC_READ 0 -#endif - -/** Filename (including path) to use as FS data file */ -#if !defined HTTPD_FSDATA_FILE || defined __DOXYGEN__ -/* HTTPD_USE_CUSTOM_FSDATA: Compatibility with deprecated lwIP option */ -#if defined(HTTPD_USE_CUSTOM_FSDATA) && (HTTPD_USE_CUSTOM_FSDATA != 0) -#define HTTPD_FSDATA_FILE "fsdata_custom.c" -#else -#define HTTPD_FSDATA_FILE "fsdata.c" -#endif -#endif - -/** - * @} - */ - -#endif /* LWIP_HDR_APPS_HTTPD_OPTS_H */ diff --git a/core/c/include/lwip/apps/lwiperf.h b/core/c/include/lwip/apps/lwiperf.h deleted file mode 100755 index ff4d6f7..0000000 --- a/core/c/include/lwip/apps/lwiperf.h +++ /dev/null @@ -1,100 +0,0 @@ -/** - * @file - * lwIP iPerf server implementation - */ - -/* - * Copyright (c) 2014 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_APPS_LWIPERF_H -#define LWIP_HDR_APPS_LWIPERF_H - -#include "lwip/opt.h" -#include "lwip/ip_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define LWIPERF_TCP_PORT_DEFAULT 5001 - -/** lwIPerf test results */ -enum lwiperf_report_type -{ - /** The server side test is done */ - LWIPERF_TCP_DONE_SERVER, - /** The client side test is done */ - LWIPERF_TCP_DONE_CLIENT, - /** Local error lead to test abort */ - LWIPERF_TCP_ABORTED_LOCAL, - /** Data check error lead to test abort */ - LWIPERF_TCP_ABORTED_LOCAL_DATAERROR, - /** Transmit error lead to test abort */ - LWIPERF_TCP_ABORTED_LOCAL_TXERROR, - /** Remote side aborted the test */ - LWIPERF_TCP_ABORTED_REMOTE -}; - -/** Control */ -enum lwiperf_client_type -{ - /** Unidirectional tx only test */ - LWIPERF_CLIENT, - /** Do a bidirectional test simultaneously */ - LWIPERF_DUAL, - /** Do a bidirectional test individually */ - LWIPERF_TRADEOFF -}; - -/** Prototype of a report function that is called when a session is finished. - This report function can show the test results. - @param report_type contains the test result */ -typedef void (*lwiperf_report_fn)(void *arg, enum lwiperf_report_type report_type, - const ip_addr_t* local_addr, u16_t local_port, const ip_addr_t* remote_addr, u16_t remote_port, - u32_t bytes_transferred, u32_t ms_duration, u32_t bandwidth_kbitpsec); - -void* lwiperf_start_tcp_server(const ip_addr_t* local_addr, u16_t local_port, - lwiperf_report_fn report_fn, void* report_arg); -void* lwiperf_start_tcp_server_default(lwiperf_report_fn report_fn, void* report_arg); -void* lwiperf_start_tcp_client(const ip_addr_t* remote_addr, u16_t remote_port, - enum lwiperf_client_type type, - lwiperf_report_fn report_fn, void* report_arg); -void* lwiperf_start_tcp_client_default(const ip_addr_t* remote_addr, - lwiperf_report_fn report_fn, void* report_arg); - -void lwiperf_abort(void* lwiperf_session); - - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_LWIPERF_H */ diff --git a/core/c/include/lwip/apps/mdns.h b/core/c/include/lwip/apps/mdns.h deleted file mode 100755 index 3c3d054..0000000 --- a/core/c/include/lwip/apps/mdns.h +++ /dev/null @@ -1,105 +0,0 @@ -/** - * @file - * MDNS responder - */ - - /* - * Copyright (c) 2015 Verisure Innovation AB - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Erik Ekman - * - */ - -#ifndef LWIP_HDR_APPS_MDNS_H -#define LWIP_HDR_APPS_MDNS_H - -#include "lwip/apps/mdns_opts.h" -#include "lwip/netif.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_MDNS_RESPONDER - -enum mdns_sd_proto { - DNSSD_PROTO_UDP = 0, - DNSSD_PROTO_TCP = 1 -}; - -#define MDNS_PROBING_CONFLICT 0 -#define MDNS_PROBING_SUCCESSFUL 1 - -#define MDNS_LABEL_MAXLEN 63 - -struct mdns_host; -struct mdns_service; - -/** Callback function to add text to a reply, called when generating the reply */ -typedef void (*service_get_txt_fn_t)(struct mdns_service *service, void *txt_userdata); - -/** Callback function to let application know the result of probing network for name - * uniqueness, called with result MDNS_PROBING_SUCCESSFUL if no other node claimed - * use for the name for the netif or a service and is safe to use, or MDNS_PROBING_CONFLICT - * if another node is already using it and mdns is disabled on this interface */ -typedef void (*mdns_name_result_cb_t)(struct netif* netif, u8_t result); - -void mdns_resp_init(void); - -void mdns_resp_register_name_result_cb(mdns_name_result_cb_t cb); - -err_t mdns_resp_add_netif(struct netif *netif, const char *hostname, u32_t dns_ttl); -err_t mdns_resp_remove_netif(struct netif *netif); -err_t mdns_resp_rename_netif(struct netif *netif, const char *hostname); - -s8_t mdns_resp_add_service(struct netif *netif, const char *name, const char *service, enum mdns_sd_proto proto, u16_t port, u32_t dns_ttl, service_get_txt_fn_t txt_fn, void *txt_userdata); -err_t mdns_resp_del_service(struct netif *netif, s8_t slot); -err_t mdns_resp_rename_service(struct netif *netif, s8_t slot, const char *name); - -err_t mdns_resp_add_service_txtitem(struct mdns_service *service, const char *txt, u8_t txt_len); - -void mdns_resp_restart(struct netif *netif); -void mdns_resp_announce(struct netif *netif); - -/** - * @ingroup mdns - * Announce IP settings have changed on netif. - * Call this in your callback registered by netif_set_status_callback(). - * No need to call this function when LWIP_NETIF_EXT_STATUS_CALLBACK==1, - * this handled automatically for you. - * @param netif The network interface where settings have changed. - */ -#define mdns_resp_netif_settings_changed(netif) mdns_resp_announce(netif) - -#endif /* LWIP_MDNS_RESPONDER */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_MDNS_H */ diff --git a/core/c/include/lwip/apps/mdns_opts.h b/core/c/include/lwip/apps/mdns_opts.h deleted file mode 100755 index 74d3f41..0000000 --- a/core/c/include/lwip/apps/mdns_opts.h +++ /dev/null @@ -1,81 +0,0 @@ -/** - * @file - * MDNS responder - */ - - /* - * Copyright (c) 2015 Verisure Innovation AB - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Erik Ekman - * - */ - -#ifndef LWIP_HDR_APPS_MDNS_OPTS_H -#define LWIP_HDR_APPS_MDNS_OPTS_H - -#include "lwip/opt.h" - -/** - * @defgroup mdns_opts Options - * @ingroup mdns - * @{ - */ - -/** - * LWIP_MDNS_RESPONDER==1: Turn on multicast DNS module. UDP must be available for MDNS - * transport. IGMP is needed for IPv4 multicast. - */ -#ifndef LWIP_MDNS_RESPONDER -#define LWIP_MDNS_RESPONDER 0 -#endif /* LWIP_MDNS_RESPONDER */ - -/** The maximum number of services per netif */ -#ifndef MDNS_MAX_SERVICES -#define MDNS_MAX_SERVICES 1 -#endif - -/** MDNS_RESP_USENETIF_EXTCALLBACK==1: register an ext_callback on the netif - * to automatically restart probing/announcing on status or address change. - */ -#ifndef MDNS_RESP_USENETIF_EXTCALLBACK -#define MDNS_RESP_USENETIF_EXTCALLBACK LWIP_NETIF_EXT_STATUS_CALLBACK -#endif - -/** - * MDNS_DEBUG: Enable debugging for multicast DNS. - */ -#ifndef MDNS_DEBUG -#define MDNS_DEBUG LWIP_DBG_OFF -#endif - -/** - * @} - */ - -#endif /* LWIP_HDR_APPS_MDNS_OPTS_H */ - diff --git a/core/c/include/lwip/apps/mdns_priv.h b/core/c/include/lwip/apps/mdns_priv.h deleted file mode 100755 index 2394157..0000000 --- a/core/c/include/lwip/apps/mdns_priv.h +++ /dev/null @@ -1,74 +0,0 @@ -/** - * @file - * MDNS responder private definitions - */ - - /* - * Copyright (c) 2015 Verisure Innovation AB - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Erik Ekman - * - */ -#ifndef LWIP_HDR_MDNS_PRIV_H -#define LWIP_HDR_MDNS_PRIV_H - -#include "lwip/apps/mdns_opts.h" -#include "lwip/pbuf.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_MDNS_RESPONDER - -/* Domain struct and methods - visible for unit tests */ - -#define MDNS_DOMAIN_MAXLEN 256 -#define MDNS_READNAME_ERROR 0xFFFF - -struct mdns_domain { - /* Encoded domain name */ - u8_t name[MDNS_DOMAIN_MAXLEN]; - /* Total length of domain name, including zero */ - u16_t length; - /* Set if compression of this domain is not allowed */ - u8_t skip_compression; -}; - -err_t mdns_domain_add_label(struct mdns_domain *domain, const char *label, u8_t len); -u16_t mdns_readname(struct pbuf *p, u16_t offset, struct mdns_domain *domain); -int mdns_domain_eq(struct mdns_domain *a, struct mdns_domain *b); -u16_t mdns_compress_domain(struct pbuf *pbuf, u16_t *offset, struct mdns_domain *domain); - -#endif /* LWIP_MDNS_RESPONDER */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_MDNS_PRIV_H */ diff --git a/core/c/include/lwip/apps/mqtt.h b/core/c/include/lwip/apps/mqtt.h deleted file mode 100755 index e796ae1..0000000 --- a/core/c/include/lwip/apps/mqtt.h +++ /dev/null @@ -1,205 +0,0 @@ -/** - * @file - * MQTT client - */ - -/* - * Copyright (c) 2016 Erik Andersson - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Erik Andersson - * - */ -#ifndef LWIP_HDR_APPS_MQTT_CLIENT_H -#define LWIP_HDR_APPS_MQTT_CLIENT_H - -#include "lwip/apps/mqtt_opts.h" -#include "lwip/err.h" -#include "lwip/ip_addr.h" -#include "lwip/prot/iana.h" - -#ifdef __cplusplus -extern "C" { -#endif - -typedef struct mqtt_client_s mqtt_client_t; - -#if LWIP_ALTCP && LWIP_ALTCP_TLS -struct altcp_tls_config; -#endif - -/** @ingroup mqtt - * Default MQTT port (non-TLS) */ -#define MQTT_PORT LWIP_IANA_PORT_MQTT -/** @ingroup mqtt - * Default MQTT TLS port */ -#define MQTT_TLS_PORT LWIP_IANA_PORT_SECURE_MQTT - -/*---------------------------------------------------------------------------------------------- */ -/* Connection with server */ - -/** - * @ingroup mqtt - * Client information and connection parameters */ -struct mqtt_connect_client_info_t { - /** Client identifier, must be set by caller */ - const char *client_id; - /** User name, set to NULL if not used */ - const char* client_user; - /** Password, set to NULL if not used */ - const char* client_pass; - /** keep alive time in seconds, 0 to disable keep alive functionality*/ - u16_t keep_alive; - /** will topic, set to NULL if will is not to be used, - will_msg, will_qos and will retain are then ignored */ - const char* will_topic; - /** will_msg, see will_topic */ - const char* will_msg; - /** will_qos, see will_topic */ - u8_t will_qos; - /** will_retain, see will_topic */ - u8_t will_retain; -#if LWIP_ALTCP && LWIP_ALTCP_TLS - /** TLS configuration for secure connections */ - struct altcp_tls_config *tls_config; -#endif -}; - -/** - * @ingroup mqtt - * Connection status codes */ -typedef enum -{ - /** Accepted */ - MQTT_CONNECT_ACCEPTED = 0, - /** Refused protocol version */ - MQTT_CONNECT_REFUSED_PROTOCOL_VERSION = 1, - /** Refused identifier */ - MQTT_CONNECT_REFUSED_IDENTIFIER = 2, - /** Refused server */ - MQTT_CONNECT_REFUSED_SERVER = 3, - /** Refused user credentials */ - MQTT_CONNECT_REFUSED_USERNAME_PASS = 4, - /** Refused not authorized */ - MQTT_CONNECT_REFUSED_NOT_AUTHORIZED_ = 5, - /** Disconnected */ - MQTT_CONNECT_DISCONNECTED = 256, - /** Timeout */ - MQTT_CONNECT_TIMEOUT = 257 -} mqtt_connection_status_t; - -/** - * @ingroup mqtt - * Function prototype for mqtt connection status callback. Called when - * client has connected to the server after initiating a mqtt connection attempt by - * calling mqtt_client_connect() or when connection is closed by server or an error - * - * @param client MQTT client itself - * @param arg Additional argument to pass to the callback function - * @param status Connect result code or disconnection notification @see mqtt_connection_status_t - * - */ -typedef void (*mqtt_connection_cb_t)(mqtt_client_t *client, void *arg, mqtt_connection_status_t status); - - -/** - * @ingroup mqtt - * Data callback flags */ -enum { - /** Flag set when last fragment of data arrives in data callback */ - MQTT_DATA_FLAG_LAST = 1 -}; - -/** - * @ingroup mqtt - * Function prototype for MQTT incoming publish data callback function. Called when data - * arrives to a subscribed topic @see mqtt_subscribe - * - * @param arg Additional argument to pass to the callback function - * @param data User data, pointed object, data may not be referenced after callback return, - NULL is passed when all publish data are delivered - * @param len Length of publish data fragment - * @param flags MQTT_DATA_FLAG_LAST set when this call contains the last part of data from publish message - * - */ -typedef void (*mqtt_incoming_data_cb_t)(void *arg, const u8_t *data, u16_t len, u8_t flags); - - -/** - * @ingroup mqtt - * Function prototype for MQTT incoming publish function. Called when an incoming publish - * arrives to a subscribed topic @see mqtt_subscribe - * - * @param arg Additional argument to pass to the callback function - * @param topic Zero terminated Topic text string, topic may not be referenced after callback return - * @param tot_len Total length of publish data, if set to 0 (no publish payload) data callback will not be invoked - */ -typedef void (*mqtt_incoming_publish_cb_t)(void *arg, const char *topic, u32_t tot_len); - - -/** - * @ingroup mqtt - * Function prototype for mqtt request callback. Called when a subscribe, unsubscribe - * or publish request has completed - * @param arg Pointer to user data supplied when invoking request - * @param err ERR_OK on success - * ERR_TIMEOUT if no response was received within timeout, - * ERR_ABRT if (un)subscribe was denied - */ -typedef void (*mqtt_request_cb_t)(void *arg, err_t err); - - -err_t mqtt_client_connect(mqtt_client_t *client, const ip_addr_t *ipaddr, u16_t port, mqtt_connection_cb_t cb, void *arg, - const struct mqtt_connect_client_info_t *client_info); - -void mqtt_disconnect(mqtt_client_t *client); - -mqtt_client_t *mqtt_client_new(void); -void mqtt_client_free(mqtt_client_t* client); - -u8_t mqtt_client_is_connected(mqtt_client_t *client); - -void mqtt_set_inpub_callback(mqtt_client_t *client, mqtt_incoming_publish_cb_t, - mqtt_incoming_data_cb_t data_cb, void *arg); - -err_t mqtt_sub_unsub(mqtt_client_t *client, const char *topic, u8_t qos, mqtt_request_cb_t cb, void *arg, u8_t sub); - -/** @ingroup mqtt - *Subscribe to topic */ -#define mqtt_subscribe(client, topic, qos, cb, arg) mqtt_sub_unsub(client, topic, qos, cb, arg, 1) -/** @ingroup mqtt - * Unsubscribe to topic */ -#define mqtt_unsubscribe(client, topic, cb, arg) mqtt_sub_unsub(client, topic, 0, cb, arg, 0) - -err_t mqtt_publish(mqtt_client_t *client, const char *topic, const void *payload, u16_t payload_length, u8_t qos, u8_t retain, - mqtt_request_cb_t cb, void *arg); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_MQTT_CLIENT_H */ diff --git a/core/c/include/lwip/apps/mqtt_opts.h b/core/c/include/lwip/apps/mqtt_opts.h deleted file mode 100755 index e056130..0000000 --- a/core/c/include/lwip/apps/mqtt_opts.h +++ /dev/null @@ -1,103 +0,0 @@ -/** - * @file - * MQTT client options - */ - -/* - * Copyright (c) 2016 Erik Andersson - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Erik Andersson - * - */ -#ifndef LWIP_HDR_APPS_MQTT_OPTS_H -#define LWIP_HDR_APPS_MQTT_OPTS_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * @defgroup mqtt_opts Options - * @ingroup mqtt - * @{ - */ - -/** - * Output ring-buffer size, must be able to fit largest outgoing publish message topic+payloads - */ -#ifndef MQTT_OUTPUT_RINGBUF_SIZE -#define MQTT_OUTPUT_RINGBUF_SIZE 256 -#endif - -/** - * Number of bytes in receive buffer, must be at least the size of the longest incoming topic + 8 - * If one wants to avoid fragmented incoming publish, set length to max incoming topic length + max payload length + 8 - */ -#ifndef MQTT_VAR_HEADER_BUFFER_LEN -#define MQTT_VAR_HEADER_BUFFER_LEN 128 -#endif - -/** - * Maximum number of pending subscribe, unsubscribe and publish requests to server . - */ -#ifndef MQTT_REQ_MAX_IN_FLIGHT -#define MQTT_REQ_MAX_IN_FLIGHT 4 -#endif - -/** - * Seconds between each cyclic timer call. - */ -#ifndef MQTT_CYCLIC_TIMER_INTERVAL -#define MQTT_CYCLIC_TIMER_INTERVAL 5 -#endif - -/** - * Publish, subscribe and unsubscribe request timeout in seconds. - */ -#ifndef MQTT_REQ_TIMEOUT -#define MQTT_REQ_TIMEOUT 30 -#endif - -/** - * Seconds for MQTT connect response timeout after sending connect request - */ -#ifndef MQTT_CONNECT_TIMOUT -#define MQTT_CONNECT_TIMOUT 100 -#endif - -/** - * @} - */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_MQTT_OPTS_H */ diff --git a/core/c/include/lwip/apps/mqtt_priv.h b/core/c/include/lwip/apps/mqtt_priv.h deleted file mode 100755 index 04d2336..0000000 --- a/core/c/include/lwip/apps/mqtt_priv.h +++ /dev/null @@ -1,104 +0,0 @@ -/** - * @file - * MQTT client (private interface) - */ - -/* - * Copyright (c) 2016 Erik Andersson - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Erik Andersson - * - */ -#ifndef LWIP_HDR_APPS_MQTT_PRIV_H -#define LWIP_HDR_APPS_MQTT_PRIV_H - -#include "lwip/apps/mqtt.h" -#include "lwip/altcp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** Pending request item, binds application callback to pending server requests */ -struct mqtt_request_t -{ - /** Next item in list, NULL means this is the last in chain, - next pointing at itself means request is unallocated */ - struct mqtt_request_t *next; - /** Callback to upper layer */ - mqtt_request_cb_t cb; - void *arg; - /** MQTT packet identifier */ - u16_t pkt_id; - /** Expire time relative to element before this */ - u16_t timeout_diff; -}; - -/** Ring buffer */ -struct mqtt_ringbuf_t { - u16_t put; - u16_t get; - u8_t buf[MQTT_OUTPUT_RINGBUF_SIZE]; -}; - -/** MQTT client */ -struct mqtt_client_s -{ - /** Timers and timeouts */ - u16_t cyclic_tick; - u16_t keep_alive; - u16_t server_watchdog; - /** Packet identifier generator*/ - u16_t pkt_id_seq; - /** Packet identifier of pending incoming publish */ - u16_t inpub_pkt_id; - /** Connection state */ - u8_t conn_state; - struct altcp_pcb *conn; - /** Connection callback */ - void *connect_arg; - mqtt_connection_cb_t connect_cb; - /** Pending requests to server */ - struct mqtt_request_t *pend_req_queue; - struct mqtt_request_t req_list[MQTT_REQ_MAX_IN_FLIGHT]; - void *inpub_arg; - /** Incoming data callback */ - mqtt_incoming_data_cb_t data_cb; - mqtt_incoming_publish_cb_t pub_cb; - /** Input */ - u32_t msg_idx; - u8_t rx_buffer[MQTT_VAR_HEADER_BUFFER_LEN]; - /** Output ring-buffer */ - struct mqtt_ringbuf_t output; -}; - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_MQTT_PRIV_H */ diff --git a/core/c/include/lwip/apps/netbiosns.h b/core/c/include/lwip/apps/netbiosns.h deleted file mode 100755 index c5aedb6..0000000 --- a/core/c/include/lwip/apps/netbiosns.h +++ /dev/null @@ -1,51 +0,0 @@ -/** - * @file - * NETBIOS name service responder - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ -#ifndef LWIP_HDR_APPS_NETBIOS_H -#define LWIP_HDR_APPS_NETBIOS_H - -#include "lwip/apps/netbiosns_opts.h" - -#ifdef __cplusplus -extern "C" { -#endif - -void netbiosns_init(void); -#ifndef NETBIOS_LWIP_NAME -void netbiosns_set_name(const char* hostname); -#endif -void netbiosns_stop(void); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_NETBIOS_H */ diff --git a/core/c/include/lwip/apps/netbiosns_opts.h b/core/c/include/lwip/apps/netbiosns_opts.h deleted file mode 100755 index 0bab59e..0000000 --- a/core/c/include/lwip/apps/netbiosns_opts.h +++ /dev/null @@ -1,66 +0,0 @@ -/** - * @file - * NETBIOS name service responder options - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ -#ifndef LWIP_HDR_APPS_NETBIOS_OPTS_H -#define LWIP_HDR_APPS_NETBIOS_OPTS_H - -#include "lwip/opt.h" - -/** - * @defgroup netbiosns_opts Options - * @ingroup netbiosns - * @{ - */ - -/** NetBIOS name of lwip device - * This must be uppercase until NETBIOS_STRCMP() is defined to a string - * comparision function that is case insensitive. - * If you want to use the netif's hostname, use this (with LWIP_NETIF_HOSTNAME): - * (ip_current_netif() != NULL ? ip_current_netif()->hostname != NULL ? ip_current_netif()->hostname : "" : "") - * - * If this is not defined, netbiosns_set_name() can be called at runtime to change the name. - */ -#ifdef __DOXYGEN__ -#define NETBIOS_LWIP_NAME "NETBIOSLWIPDEV" -#endif - -/** Respond to NetBIOS name queries - * Default is disabled - */ -#if !defined LWIP_NETBIOS_RESPOND_NAME_QUERY || defined __DOXYGEN__ -#define LWIP_NETBIOS_RESPOND_NAME_QUERY 0 -#endif - -/** - * @} - */ - -#endif /* LWIP_HDR_APPS_NETBIOS_OPTS_H */ diff --git a/core/c/include/lwip/apps/smtp.h b/core/c/include/lwip/apps/smtp.h deleted file mode 100755 index e6076a1..0000000 --- a/core/c/include/lwip/apps/smtp.h +++ /dev/null @@ -1,128 +0,0 @@ -#ifndef LWIP_HDR_APPS_SMTP_H -#define LWIP_HDR_APPS_SMTP_H - -#ifdef __cplusplus -extern "C" { -#endif - -#include "lwip/apps/smtp_opts.h" -#include "lwip/err.h" -#include "lwip/prot/iana.h" - -/** The default TCP port used for SMTP */ -#define SMTP_DEFAULT_PORT LWIP_IANA_PORT_SMTP -/** The default TCP port used for SMTPS */ -#define SMTPS_DEFAULT_PORT LWIP_IANA_PORT_SMTPS - -/** Email successfully sent */ -#define SMTP_RESULT_OK 0 -/** Unknown error */ -#define SMTP_RESULT_ERR_UNKNOWN 1 -/** Connection to server failed */ -#define SMTP_RESULT_ERR_CONNECT 2 -/** Failed to resolve server hostname */ -#define SMTP_RESULT_ERR_HOSTNAME 3 -/** Connection unexpectedly closed by remote server */ -#define SMTP_RESULT_ERR_CLOSED 4 -/** Connection timed out (server didn't respond in time) */ -#define SMTP_RESULT_ERR_TIMEOUT 5 -/** Server responded with an unknown response code */ -#define SMTP_RESULT_ERR_SVR_RESP 6 -/** Out of resources locally */ -#define SMTP_RESULT_ERR_MEM 7 - -/** Prototype of an smtp callback function - * - * @param arg argument specified when initiating the email - * @param smtp_result result of the mail transfer (see defines SMTP_RESULT_*) - * @param srv_err if aborted by the server, this contains the error code received - * @param err an error returned by internal lwip functions, can help to specify - * the source of the error but must not necessarily be != ERR_OK - */ -typedef void (*smtp_result_fn)(void *arg, u8_t smtp_result, u16_t srv_err, err_t err); - -/** This structure is used as argument for smtp_send_mail_int(), - * which in turn can be used with tcpip_callback() to send mail - * from interrupt context, e.g. like this: - * struct smtp_send_request *req; (to be filled) - * tcpip_try_callback(smtp_send_mail_int, (void*)req); - * - * For member description, see parameter description of smtp_send_mail(). - * When using with tcpip_callback, this structure has to stay allocated - * (e.g. using mem_malloc/mem_free) until its 'callback_fn' is called. - */ -struct smtp_send_request { - const char *from; - const char* to; - const char* subject; - const char* body; - smtp_result_fn callback_fn; - void* callback_arg; - /** If this is != 0, data is *not* copied into an extra buffer - * but used from the pointers supplied in this struct. - * This means less memory usage, but data must stay untouched until - * the callback function is called. */ - u8_t static_data; -}; - - -#if SMTP_BODYDH - -#ifndef SMTP_BODYDH_BUFFER_SIZE -#define SMTP_BODYDH_BUFFER_SIZE 256 -#endif /* SMTP_BODYDH_BUFFER_SIZE */ - -struct smtp_bodydh { - u16_t state; - u16_t length; /* Length of content in buffer */ - char buffer[SMTP_BODYDH_BUFFER_SIZE]; /* buffer for generated content */ -#ifdef SMTP_BODYDH_USER_SIZE - u8_t user[SMTP_BODYDH_USER_SIZE]; -#endif /* SMTP_BODYDH_USER_SIZE */ -}; - -enum bdh_retvals_e { - BDH_DONE = 0, - BDH_WORKING -}; - -/** Prototype of an smtp body callback function - * It receives a struct smtp_bodydh, and a buffer to write data, - * must return BDH_WORKING to be called again and BDH_DONE when - * it has finished processing. This one tries to fill one TCP buffer with - * data, your function will be repeatedly called until that happens; so if you - * know you'll be taking too long to serve your request, pause once in a while - * by writing length=0 to avoid hogging system resources - * - * @param arg argument specified when initiating the email - * @param smtp_bodydh state handling + buffer structure - */ -typedef int (*smtp_bodycback_fn)(void *arg, struct smtp_bodydh *bodydh); - -err_t smtp_send_mail_bodycback(const char *from, const char* to, const char* subject, - smtp_bodycback_fn bodycback_fn, smtp_result_fn callback_fn, void* callback_arg); - -#endif /* SMTP_BODYDH */ - - -err_t smtp_set_server_addr(const char* server); -void smtp_set_server_port(u16_t port); -#if LWIP_ALTCP && LWIP_ALTCP_TLS -struct altcp_tls_config; -void smtp_set_tls_config(struct altcp_tls_config *tls_config); -#endif -err_t smtp_set_auth(const char* username, const char* pass); -err_t smtp_send_mail(const char *from, const char* to, const char* subject, const char* body, - smtp_result_fn callback_fn, void* callback_arg); -err_t smtp_send_mail_static(const char *from, const char* to, const char* subject, const char* body, - smtp_result_fn callback_fn, void* callback_arg); -void smtp_send_mail_int(void *arg); -#ifdef LWIP_DEBUG -const char* smtp_result_str(u8_t smtp_result); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_SMTP_H */ diff --git a/core/c/include/lwip/apps/smtp_opts.h b/core/c/include/lwip/apps/smtp_opts.h deleted file mode 100755 index 29c0c08..0000000 --- a/core/c/include/lwip/apps/smtp_opts.h +++ /dev/null @@ -1,81 +0,0 @@ -#ifndef LWIP_HDR_APPS_SMTP_OPTS_H -#define LWIP_HDR_APPS_SMTP_OPTS_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * @defgroup smtp_opts Options - * @ingroup smtp - * - * @{ - */ - -/** Set this to 1 to enable data handler callback on BODY */ -#ifndef SMTP_BODYDH -#define SMTP_BODYDH 0 -#endif - -/** SMTP_DEBUG: Enable debugging for SNTP. */ -#ifndef SMTP_DEBUG -#define SMTP_DEBUG LWIP_DBG_OFF -#endif - -/** Maximum length reserved for server name including terminating 0 byte */ -#ifndef SMTP_MAX_SERVERNAME_LEN -#define SMTP_MAX_SERVERNAME_LEN 256 -#endif - -/** Maximum length reserved for username */ -#ifndef SMTP_MAX_USERNAME_LEN -#define SMTP_MAX_USERNAME_LEN 32 -#endif - -/** Maximum length reserved for password */ -#ifndef SMTP_MAX_PASS_LEN -#define SMTP_MAX_PASS_LEN 32 -#endif - -/** Set this to 0 if you know the authentication data will not change - * during the smtp session, which saves some heap space. */ -#ifndef SMTP_COPY_AUTHDATA -#define SMTP_COPY_AUTHDATA 1 -#endif - -/** Set this to 0 to save some code space if you know for sure that all data - * passed to this module conforms to the requirements in the SMTP RFC. - * WARNING: use this with care! - */ -#ifndef SMTP_CHECK_DATA -#define SMTP_CHECK_DATA 1 -#endif - -/** Set this to 1 to enable AUTH PLAIN support */ -#ifndef SMTP_SUPPORT_AUTH_PLAIN -#define SMTP_SUPPORT_AUTH_PLAIN 1 -#endif - -/** Set this to 1 to enable AUTH LOGIN support */ -#ifndef SMTP_SUPPORT_AUTH_LOGIN -#define SMTP_SUPPORT_AUTH_LOGIN 1 -#endif - -/* Memory allocation/deallocation can be overridden... */ -#ifndef SMTP_STATE_MALLOC -#define SMTP_STATE_MALLOC(size) mem_malloc(size) -#define SMTP_STATE_FREE(ptr) mem_free(ptr) -#endif - -/** - * @} - */ - -#ifdef __cplusplus -} -#endif - -#endif /* SMTP_OPTS_H */ - diff --git a/core/c/include/lwip/apps/snmp.h b/core/c/include/lwip/apps/snmp.h deleted file mode 100755 index 15b154e..0000000 --- a/core/c/include/lwip/apps/snmp.h +++ /dev/null @@ -1,135 +0,0 @@ -/** - * @file - * SNMP server main API - start and basic configuration - */ - -/* - * Copyright (c) 2001, 2002 Leon Woestenberg - * Copyright (c) 2001, 2002 Axon Digital Design B.V., The Netherlands. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Leon Woestenberg - * Martin Hentschel - * - */ -#ifndef LWIP_HDR_APPS_SNMP_H -#define LWIP_HDR_APPS_SNMP_H - -#include "lwip/apps/snmp_opts.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/err.h" -#include "lwip/apps/snmp_core.h" - -/** SNMP variable binding descriptor (publically needed for traps) */ -struct snmp_varbind -{ - /** pointer to next varbind, NULL for last in list */ - struct snmp_varbind *next; - /** pointer to previous varbind, NULL for first in list */ - struct snmp_varbind *prev; - - /** object identifier */ - struct snmp_obj_id oid; - - /** value ASN1 type */ - u8_t type; - /** object value length */ - u16_t value_len; - /** object value */ - void *value; -}; - -/** - * @ingroup snmp_core - * Agent setup, start listening to port 161. - */ -void snmp_init(void); -void snmp_set_mibs(const struct snmp_mib **mibs, u8_t num_mibs); - -void snmp_set_device_enterprise_oid(const struct snmp_obj_id* device_enterprise_oid); -const struct snmp_obj_id* snmp_get_device_enterprise_oid(void); - -void snmp_trap_dst_enable(u8_t dst_idx, u8_t enable); -void snmp_trap_dst_ip_set(u8_t dst_idx, const ip_addr_t *dst); - -/** Generic trap: cold start */ -#define SNMP_GENTRAP_COLDSTART 0 -/** Generic trap: warm start */ -#define SNMP_GENTRAP_WARMSTART 1 -/** Generic trap: link down */ -#define SNMP_GENTRAP_LINKDOWN 2 -/** Generic trap: link up */ -#define SNMP_GENTRAP_LINKUP 3 -/** Generic trap: authentication failure */ -#define SNMP_GENTRAP_AUTH_FAILURE 4 -/** Generic trap: EGP neighbor lost */ -#define SNMP_GENTRAP_EGP_NEIGHBOR_LOSS 5 -/** Generic trap: enterprise specific */ -#define SNMP_GENTRAP_ENTERPRISE_SPECIFIC 6 - -err_t snmp_send_trap_generic(s32_t generic_trap); -err_t snmp_send_trap_specific(s32_t specific_trap, struct snmp_varbind *varbinds); -err_t snmp_send_trap(const struct snmp_obj_id* oid, s32_t generic_trap, s32_t specific_trap, struct snmp_varbind *varbinds); - -#define SNMP_AUTH_TRAPS_DISABLED 0 -#define SNMP_AUTH_TRAPS_ENABLED 1 -void snmp_set_auth_traps_enabled(u8_t enable); -u8_t snmp_get_auth_traps_enabled(void); - -u8_t snmp_v1_enabled(void); -u8_t snmp_v2c_enabled(void); -u8_t snmp_v3_enabled(void); -void snmp_v1_enable(u8_t enable); -void snmp_v2c_enable(u8_t enable); -void snmp_v3_enable(u8_t enable); - -const char * snmp_get_community(void); -const char * snmp_get_community_write(void); -const char * snmp_get_community_trap(void); -void snmp_set_community(const char * const community); -void snmp_set_community_write(const char * const community); -void snmp_set_community_trap(const char * const community); - -void snmp_coldstart_trap(void); -void snmp_authfail_trap(void); - -typedef void (*snmp_write_callback_fct)(const u32_t* oid, u8_t oid_len, void* callback_arg); -void snmp_set_write_callback(snmp_write_callback_fct write_callback, void* callback_arg); - -#endif /* LWIP_SNMP */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_SNMP_H */ diff --git a/core/c/include/lwip/apps/snmp_core.h b/core/c/include/lwip/apps/snmp_core.h deleted file mode 100755 index 4748df6..0000000 --- a/core/c/include/lwip/apps/snmp_core.h +++ /dev/null @@ -1,377 +0,0 @@ -/** - * @file - * SNMP core API for implementing MIBs - */ - -/* - * Copyright (c) 2006 Axon Digital Design B.V., The Netherlands. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * Author: Christiaan Simons - * Martin Hentschel - */ - -#ifndef LWIP_HDR_APPS_SNMP_CORE_H -#define LWIP_HDR_APPS_SNMP_CORE_H - -#include "lwip/apps/snmp_opts.h" - -#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/ip_addr.h" -#include "lwip/err.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* basic ASN1 defines */ -#define SNMP_ASN1_CLASS_UNIVERSAL 0x00 -#define SNMP_ASN1_CLASS_APPLICATION 0x40 -#define SNMP_ASN1_CLASS_CONTEXT 0x80 -#define SNMP_ASN1_CLASS_PRIVATE 0xC0 - -#define SNMP_ASN1_CONTENTTYPE_PRIMITIVE 0x00 -#define SNMP_ASN1_CONTENTTYPE_CONSTRUCTED 0x20 - -/* universal tags (from ASN.1 spec.) */ -#define SNMP_ASN1_UNIVERSAL_END_OF_CONTENT 0 -#define SNMP_ASN1_UNIVERSAL_INTEGER 2 -#define SNMP_ASN1_UNIVERSAL_OCTET_STRING 4 -#define SNMP_ASN1_UNIVERSAL_NULL 5 -#define SNMP_ASN1_UNIVERSAL_OBJECT_ID 6 -#define SNMP_ASN1_UNIVERSAL_SEQUENCE_OF 16 - -/* application specific (SNMP) tags (from SNMPv2-SMI) */ -#define SNMP_ASN1_APPLICATION_IPADDR 0 /* [APPLICATION 0] IMPLICIT OCTET STRING (SIZE (4)) */ -#define SNMP_ASN1_APPLICATION_COUNTER 1 /* [APPLICATION 1] IMPLICIT INTEGER (0..4294967295) => u32_t */ -#define SNMP_ASN1_APPLICATION_GAUGE 2 /* [APPLICATION 2] IMPLICIT INTEGER (0..4294967295) => u32_t */ -#define SNMP_ASN1_APPLICATION_TIMETICKS 3 /* [APPLICATION 3] IMPLICIT INTEGER (0..4294967295) => u32_t */ -#define SNMP_ASN1_APPLICATION_OPAQUE 4 /* [APPLICATION 4] IMPLICIT OCTET STRING */ -#define SNMP_ASN1_APPLICATION_COUNTER64 6 /* [APPLICATION 6] IMPLICIT INTEGER (0..18446744073709551615) */ - -/* context specific (SNMP) tags (from RFC 1905) */ -#define SNMP_ASN1_CONTEXT_VARBIND_NO_SUCH_INSTANCE 1 - -/* full ASN1 type defines */ -#define SNMP_ASN1_TYPE_END_OF_CONTENT (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_END_OF_CONTENT) -#define SNMP_ASN1_TYPE_INTEGER (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_INTEGER) -#define SNMP_ASN1_TYPE_OCTET_STRING (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_OCTET_STRING) -#define SNMP_ASN1_TYPE_NULL (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_NULL) -#define SNMP_ASN1_TYPE_OBJECT_ID (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_UNIVERSAL_OBJECT_ID) -#define SNMP_ASN1_TYPE_SEQUENCE (SNMP_ASN1_CLASS_UNIVERSAL | SNMP_ASN1_CONTENTTYPE_CONSTRUCTED | SNMP_ASN1_UNIVERSAL_SEQUENCE_OF) -#define SNMP_ASN1_TYPE_IPADDR (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_IPADDR) -#define SNMP_ASN1_TYPE_IPADDRESS SNMP_ASN1_TYPE_IPADDR -#define SNMP_ASN1_TYPE_COUNTER (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_COUNTER) -#define SNMP_ASN1_TYPE_COUNTER32 SNMP_ASN1_TYPE_COUNTER -#define SNMP_ASN1_TYPE_GAUGE (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_GAUGE) -#define SNMP_ASN1_TYPE_GAUGE32 SNMP_ASN1_TYPE_GAUGE -#define SNMP_ASN1_TYPE_UNSIGNED32 SNMP_ASN1_TYPE_GAUGE -#define SNMP_ASN1_TYPE_TIMETICKS (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_TIMETICKS) -#define SNMP_ASN1_TYPE_OPAQUE (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_OPAQUE) -#if LWIP_HAVE_INT64 -#define SNMP_ASN1_TYPE_COUNTER64 (SNMP_ASN1_CLASS_APPLICATION | SNMP_ASN1_CONTENTTYPE_PRIMITIVE | SNMP_ASN1_APPLICATION_COUNTER64) -#endif - -#define SNMP_VARBIND_EXCEPTION_OFFSET 0xF0 -#define SNMP_VARBIND_EXCEPTION_MASK 0x0F - -/** error codes predefined by SNMP prot. */ -typedef enum { - SNMP_ERR_NOERROR = 0, -/* -outdated v1 error codes. do not use anmore! -#define SNMP_ERR_NOSUCHNAME 2 use SNMP_ERR_NOSUCHINSTANCE instead -#define SNMP_ERR_BADVALUE 3 use SNMP_ERR_WRONGTYPE,SNMP_ERR_WRONGLENGTH,SNMP_ERR_WRONGENCODING or SNMP_ERR_WRONGVALUE instead -#define SNMP_ERR_READONLY 4 use SNMP_ERR_NOTWRITABLE instead -*/ - SNMP_ERR_GENERROR = 5, - SNMP_ERR_NOACCESS = 6, - SNMP_ERR_WRONGTYPE = 7, - SNMP_ERR_WRONGLENGTH = 8, - SNMP_ERR_WRONGENCODING = 9, - SNMP_ERR_WRONGVALUE = 10, - SNMP_ERR_NOCREATION = 11, - SNMP_ERR_INCONSISTENTVALUE = 12, - SNMP_ERR_RESOURCEUNAVAILABLE = 13, - SNMP_ERR_COMMITFAILED = 14, - SNMP_ERR_UNDOFAILED = 15, - SNMP_ERR_NOTWRITABLE = 17, - SNMP_ERR_INCONSISTENTNAME = 18, - - SNMP_ERR_NOSUCHINSTANCE = SNMP_VARBIND_EXCEPTION_OFFSET + SNMP_ASN1_CONTEXT_VARBIND_NO_SUCH_INSTANCE -} snmp_err_t; - -/** internal object identifier representation */ -struct snmp_obj_id -{ - u8_t len; - u32_t id[SNMP_MAX_OBJ_ID_LEN]; -}; - -struct snmp_obj_id_const_ref -{ - u8_t len; - const u32_t* id; -}; - -extern const struct snmp_obj_id_const_ref snmp_zero_dot_zero; /* administrative identifier from SNMPv2-SMI */ - -/** SNMP variant value, used as reference in struct snmp_node_instance and table implementation */ -union snmp_variant_value -{ - void* ptr; - const void* const_ptr; - u32_t u32; - s32_t s32; -#if LWIP_HAVE_INT64 - u64_t u64; -#endif -}; - - -/** -SNMP MIB node types - tree node is the only node the stack can process in order to walk the tree, - all other nodes are assumed to be leaf nodes. - This cannot be an enum because users may want to define their own node types. -*/ -#define SNMP_NODE_TREE 0x00 -/* predefined leaf node types */ -#define SNMP_NODE_SCALAR 0x01 -#define SNMP_NODE_SCALAR_ARRAY 0x02 -#define SNMP_NODE_TABLE 0x03 -#define SNMP_NODE_THREADSYNC 0x04 - -/** node "base class" layout, the mandatory fields for a node */ -struct snmp_node -{ - /** one out of SNMP_NODE_TREE or any leaf node type (like SNMP_NODE_SCALAR) */ - u8_t node_type; - /** the number assigned to this node which used as part of the full OID */ - u32_t oid; -}; - -/** SNMP node instance access types */ -typedef enum { - SNMP_NODE_INSTANCE_ACCESS_READ = 1, - SNMP_NODE_INSTANCE_ACCESS_WRITE = 2, - SNMP_NODE_INSTANCE_READ_ONLY = SNMP_NODE_INSTANCE_ACCESS_READ, - SNMP_NODE_INSTANCE_READ_WRITE = (SNMP_NODE_INSTANCE_ACCESS_READ | SNMP_NODE_INSTANCE_ACCESS_WRITE), - SNMP_NODE_INSTANCE_WRITE_ONLY = SNMP_NODE_INSTANCE_ACCESS_WRITE, - SNMP_NODE_INSTANCE_NOT_ACCESSIBLE = 0 -} snmp_access_t; - -struct snmp_node_instance; - -typedef s16_t (*node_instance_get_value_method)(struct snmp_node_instance*, void*); -typedef snmp_err_t (*node_instance_set_test_method)(struct snmp_node_instance*, u16_t, void*); -typedef snmp_err_t (*node_instance_set_value_method)(struct snmp_node_instance*, u16_t, void*); -typedef void (*node_instance_release_method)(struct snmp_node_instance*); - -#define SNMP_GET_VALUE_RAW_DATA 0x4000 /* do not use 0x8000 because return value of node_instance_get_value_method is signed16 and 0x8000 would be the signed bit */ - -/** SNMP node instance */ -struct snmp_node_instance -{ - /** prefilled with the node, get_instance() is called on; may be changed by user to any value to pass an arbitrary node between calls to get_instance() and get_value/test_value/set_value */ - const struct snmp_node* node; - /** prefilled with the instance id requested; for get_instance() this is the exact oid requested; for get_next_instance() this is the relative starting point, stack expects relative oid of next node here */ - struct snmp_obj_id instance_oid; - - /** ASN type for this object (see snmp_asn1.h for definitions) */ - u8_t asn1_type; - /** one out of instance access types defined above (SNMP_NODE_INSTANCE_READ_ONLY,...) */ - snmp_access_t access; - - /** returns object value for the given object identifier. Return values <0 to indicate an error */ - node_instance_get_value_method get_value; - /** tests length and/or range BEFORE setting */ - node_instance_set_test_method set_test; - /** sets object value, only called when set_test() was successful */ - node_instance_set_value_method set_value; - /** called in any case when the instance is not required anymore by stack (useful for freeing memory allocated in get_instance/get_next_instance methods) */ - node_instance_release_method release_instance; - - /** reference to pass arbitrary value between calls to get_instance() and get_value/test_value/set_value */ - union snmp_variant_value reference; - /** see reference (if reference is a pointer, the length of underlying data may be stored here or anything else) */ - u32_t reference_len; -}; - - -/** SNMP tree node */ -struct snmp_tree_node -{ - /** inherited "base class" members */ - struct snmp_node node; - u16_t subnode_count; - const struct snmp_node* const *subnodes; -}; - -#define SNMP_CREATE_TREE_NODE(oid, subnodes) \ - {{ SNMP_NODE_TREE, (oid) }, \ - (u16_t)LWIP_ARRAYSIZE(subnodes), (subnodes) } - -#define SNMP_CREATE_EMPTY_TREE_NODE(oid) \ - {{ SNMP_NODE_TREE, (oid) }, \ - 0, NULL } - -/** SNMP leaf node */ -struct snmp_leaf_node -{ - /** inherited "base class" members */ - struct snmp_node node; - snmp_err_t (*get_instance)(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); - snmp_err_t (*get_next_instance)(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); -}; - -/** represents a single mib with its base oid and root node */ -struct snmp_mib -{ - const u32_t *base_oid; - u8_t base_oid_len; - const struct snmp_node *root_node; -}; - -#define SNMP_MIB_CREATE(oid_list, root_node) { (oid_list), (u8_t)LWIP_ARRAYSIZE(oid_list), root_node } - -/** OID range structure */ -struct snmp_oid_range -{ - u32_t min; - u32_t max; -}; - -/** checks if incoming OID length and values are in allowed ranges */ -u8_t snmp_oid_in_range(const u32_t *oid_in, u8_t oid_len, const struct snmp_oid_range *oid_ranges, u8_t oid_ranges_len); - -typedef enum { - SNMP_NEXT_OID_STATUS_SUCCESS, - SNMP_NEXT_OID_STATUS_NO_MATCH, - SNMP_NEXT_OID_STATUS_BUF_TO_SMALL -} snmp_next_oid_status_t; - -/** state for next_oid_init / next_oid_check functions */ -struct snmp_next_oid_state -{ - const u32_t* start_oid; - u8_t start_oid_len; - - u32_t* next_oid; - u8_t next_oid_len; - u8_t next_oid_max_len; - - snmp_next_oid_status_t status; - void* reference; -}; - -void snmp_next_oid_init(struct snmp_next_oid_state *state, - const u32_t *start_oid, u8_t start_oid_len, - u32_t *next_oid_buf, u8_t next_oid_max_len); -u8_t snmp_next_oid_precheck(struct snmp_next_oid_state *state, const u32_t *oid, u8_t oid_len); -u8_t snmp_next_oid_check(struct snmp_next_oid_state *state, const u32_t *oid, u8_t oid_len, void* reference); - -void snmp_oid_assign(struct snmp_obj_id* target, const u32_t *oid, u8_t oid_len); -void snmp_oid_combine(struct snmp_obj_id* target, const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len); -void snmp_oid_prefix(struct snmp_obj_id* target, const u32_t *oid, u8_t oid_len); -void snmp_oid_append(struct snmp_obj_id* target, const u32_t *oid, u8_t oid_len); -u8_t snmp_oid_equal(const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len); -s8_t snmp_oid_compare(const u32_t *oid1, u8_t oid1_len, const u32_t *oid2, u8_t oid2_len); - -#if LWIP_IPV4 -u8_t snmp_oid_to_ip4(const u32_t *oid, ip4_addr_t *ip); -void snmp_ip4_to_oid(const ip4_addr_t *ip, u32_t *oid); -#endif /* LWIP_IPV4 */ -#if LWIP_IPV6 -u8_t snmp_oid_to_ip6(const u32_t *oid, ip6_addr_t *ip); -void snmp_ip6_to_oid(const ip6_addr_t *ip, u32_t *oid); -#endif /* LWIP_IPV6 */ -#if LWIP_IPV4 || LWIP_IPV6 -u8_t snmp_ip_to_oid(const ip_addr_t *ip, u32_t *oid); -u8_t snmp_ip_port_to_oid(const ip_addr_t *ip, u16_t port, u32_t *oid); - -u8_t snmp_oid_to_ip(const u32_t *oid, u8_t oid_len, ip_addr_t *ip); -u8_t snmp_oid_to_ip_port(const u32_t *oid, u8_t oid_len, ip_addr_t *ip, u16_t *port); -#endif /* LWIP_IPV4 || LWIP_IPV6 */ - -struct netif; -u8_t netif_to_num(const struct netif *netif); - -snmp_err_t snmp_set_test_ok(struct snmp_node_instance* instance, u16_t value_len, void* value); /* generic function which can be used if test is always successful */ - -err_t snmp_decode_bits(const u8_t *buf, u32_t buf_len, u32_t *bit_value); -err_t snmp_decode_truthvalue(const s32_t *asn1_value, u8_t *bool_value); -u8_t snmp_encode_bits(u8_t *buf, u32_t buf_len, u32_t bit_value, u8_t bit_count); -u8_t snmp_encode_truthvalue(s32_t *asn1_value, u32_t bool_value); - -struct snmp_statistics -{ - u32_t inpkts; - u32_t outpkts; - u32_t inbadversions; - u32_t inbadcommunitynames; - u32_t inbadcommunityuses; - u32_t inasnparseerrs; - u32_t intoobigs; - u32_t innosuchnames; - u32_t inbadvalues; - u32_t inreadonlys; - u32_t ingenerrs; - u32_t intotalreqvars; - u32_t intotalsetvars; - u32_t ingetrequests; - u32_t ingetnexts; - u32_t insetrequests; - u32_t ingetresponses; - u32_t intraps; - u32_t outtoobigs; - u32_t outnosuchnames; - u32_t outbadvalues; - u32_t outgenerrs; - u32_t outgetrequests; - u32_t outgetnexts; - u32_t outsetrequests; - u32_t outgetresponses; - u32_t outtraps; -#if LWIP_SNMP_V3 - u32_t unsupportedseclevels; - u32_t notintimewindows; - u32_t unknownusernames; - u32_t unknownengineids; - u32_t wrongdigests; - u32_t decryptionerrors; -#endif -}; - -extern struct snmp_statistics snmp_stats; - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_SNMP */ - -#endif /* LWIP_HDR_APPS_SNMP_CORE_H */ diff --git a/core/c/include/lwip/apps/snmp_mib2.h b/core/c/include/lwip/apps/snmp_mib2.h deleted file mode 100755 index 392ee25..0000000 --- a/core/c/include/lwip/apps/snmp_mib2.h +++ /dev/null @@ -1,78 +0,0 @@ -/** - * @file - * SNMP MIB2 API - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Dirk Ziegelmeier - * - */ -#ifndef LWIP_HDR_APPS_SNMP_MIB2_H -#define LWIP_HDR_APPS_SNMP_MIB2_H - -#include "lwip/apps/snmp_opts.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ -#if SNMP_LWIP_MIB2 - -#include "lwip/apps/snmp_core.h" - -extern const struct snmp_mib mib2; - -#if SNMP_USE_NETCONN -#include "lwip/apps/snmp_threadsync.h" -void snmp_mib2_lwip_synchronizer(snmp_threadsync_called_fn fn, void* arg); -extern struct snmp_threadsync_instance snmp_mib2_lwip_locks; -#endif - -#ifndef SNMP_SYSSERVICES -#define SNMP_SYSSERVICES ((1 << 6) | (1 << 3) | ((IP_FORWARD) << 2)) -#endif - -void snmp_mib2_set_sysdescr(const u8_t* str, const u16_t* len); /* read-only be defintion */ -void snmp_mib2_set_syscontact(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize); -void snmp_mib2_set_syscontact_readonly(const u8_t *ocstr, const u16_t *ocstrlen); -void snmp_mib2_set_sysname(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize); -void snmp_mib2_set_sysname_readonly(const u8_t *ocstr, const u16_t *ocstrlen); -void snmp_mib2_set_syslocation(u8_t *ocstr, u16_t *ocstrlen, u16_t bufsize); -void snmp_mib2_set_syslocation_readonly(const u8_t *ocstr, const u16_t *ocstrlen); - -#endif /* SNMP_LWIP_MIB2 */ -#endif /* LWIP_SNMP */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_SNMP_MIB2_H */ diff --git a/core/c/include/lwip/apps/snmp_opts.h b/core/c/include/lwip/apps/snmp_opts.h deleted file mode 100755 index 1c63504..0000000 --- a/core/c/include/lwip/apps/snmp_opts.h +++ /dev/null @@ -1,297 +0,0 @@ -/** - * @file - * SNMP server options list - */ - -/* - * Copyright (c) 2015 Dirk Ziegelmeier - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Dirk Ziegelmeier - * - */ -#ifndef LWIP_HDR_SNMP_OPTS_H -#define LWIP_HDR_SNMP_OPTS_H - -#include "lwip/opt.h" - -/** - * @defgroup snmp_opts Options - * @ingroup snmp - * @{ - */ - -/** - * LWIP_SNMP==1: This enables the lwIP SNMP agent. UDP must be available - * for SNMP transport. - * If you want to use your own SNMP agent, leave this disabled. - * To integrate MIB2 of an external agent, you need to enable - * LWIP_MIB2_CALLBACKS and MIB2_STATS. This will give you the callbacks - * and statistics counters you need to get MIB2 working. - */ -#if !defined LWIP_SNMP || defined __DOXYGEN__ -#define LWIP_SNMP 0 -#endif - -/** - * SNMP_USE_NETCONN: Use netconn API instead of raw API. - * Makes SNMP agent run in a worker thread, so blocking operations - * can be done in MIB calls. - */ -#if !defined SNMP_USE_NETCONN || defined __DOXYGEN__ -#define SNMP_USE_NETCONN 0 -#endif - -/** - * SNMP_USE_RAW: Use raw API. - * SNMP agent does not run in a worker thread, so blocking operations - * should not be done in MIB calls. - */ -#if !defined SNMP_USE_RAW || defined __DOXYGEN__ -#define SNMP_USE_RAW 1 -#endif - -#if SNMP_USE_NETCONN && SNMP_USE_RAW -#error SNMP stack can use only one of the APIs {raw, netconn} -#endif - -#if LWIP_SNMP && !SNMP_USE_NETCONN && !SNMP_USE_RAW -#error SNMP stack needs a receive API and UDP {raw, netconn} -#endif - -#if SNMP_USE_NETCONN -/** - * SNMP_STACK_SIZE: Stack size of SNMP netconn worker thread - */ -#if !defined SNMP_STACK_SIZE || defined __DOXYGEN__ -#define SNMP_STACK_SIZE DEFAULT_THREAD_STACKSIZE -#endif - -/** - * SNMP_THREAD_PRIO: SNMP netconn worker thread priority - */ -#if !defined SNMP_THREAD_PRIO || defined __DOXYGEN__ -#define SNMP_THREAD_PRIO DEFAULT_THREAD_PRIO -#endif -#endif /* SNMP_USE_NETCONN */ - -/** - * SNMP_TRAP_DESTINATIONS: Number of trap destinations. At least one trap - * destination is required - */ -#if !defined SNMP_TRAP_DESTINATIONS || defined __DOXYGEN__ -#define SNMP_TRAP_DESTINATIONS 1 -#endif - -/** - * Only allow SNMP write actions that are 'safe' (e.g. disabling netifs is not - * a safe action and disabled when SNMP_SAFE_REQUESTS = 1). - * Unsafe requests are disabled by default! - */ -#if !defined SNMP_SAFE_REQUESTS || defined __DOXYGEN__ -#define SNMP_SAFE_REQUESTS 1 -#endif - -/** - * The maximum length of strings used. - */ -#if !defined SNMP_MAX_OCTET_STRING_LEN || defined __DOXYGEN__ -#define SNMP_MAX_OCTET_STRING_LEN 127 -#endif - -/** - * The maximum number of Sub ID's inside an object identifier. - * Indirectly this also limits the maximum depth of SNMP tree. - */ -#if !defined SNMP_MAX_OBJ_ID_LEN || defined __DOXYGEN__ -#define SNMP_MAX_OBJ_ID_LEN 50 -#endif - -#if !defined SNMP_MAX_VALUE_SIZE || defined __DOXYGEN__ -/** - * The minimum size of a value. - */ -#define SNMP_MIN_VALUE_SIZE (2 * sizeof(u32_t*)) /* size required to store the basic types (8 bytes for counter64) */ -/** - * The maximum size of a value. - */ -#define SNMP_MAX_VALUE_SIZE LWIP_MAX(LWIP_MAX((SNMP_MAX_OCTET_STRING_LEN), sizeof(u32_t)*(SNMP_MAX_OBJ_ID_LEN)), SNMP_MIN_VALUE_SIZE) -#endif - -/** - * The snmp read-access community. Used for write-access and traps, too - * unless SNMP_COMMUNITY_WRITE or SNMP_COMMUNITY_TRAP are enabled, respectively. - */ -#if !defined SNMP_COMMUNITY || defined __DOXYGEN__ -#define SNMP_COMMUNITY "public" -#endif - -/** - * The snmp write-access community. - * Set this community to "" in order to disallow any write access. - */ -#if !defined SNMP_COMMUNITY_WRITE || defined __DOXYGEN__ -#define SNMP_COMMUNITY_WRITE "private" -#endif - -/** - * The snmp community used for sending traps. - */ -#if !defined SNMP_COMMUNITY_TRAP || defined __DOXYGEN__ -#define SNMP_COMMUNITY_TRAP "public" -#endif - -/** - * The maximum length of community string. - * If community names shall be adjusted at runtime via snmp_set_community() calls, - * enter here the possible maximum length (+1 for terminating null character). - */ -#if !defined SNMP_MAX_COMMUNITY_STR_LEN || defined __DOXYGEN__ -#define SNMP_MAX_COMMUNITY_STR_LEN LWIP_MAX(LWIP_MAX(sizeof(SNMP_COMMUNITY), sizeof(SNMP_COMMUNITY_WRITE)), sizeof(SNMP_COMMUNITY_TRAP)) -#endif - -/** - * The OID identifiying the device. This may be the enterprise OID itself or any OID located below it in tree. - */ -#if !defined SNMP_DEVICE_ENTERPRISE_OID || defined __DOXYGEN__ -#define SNMP_LWIP_ENTERPRISE_OID 26381 -/** - * IANA assigned enterprise ID for lwIP is 26381 - * @see http://www.iana.org/assignments/enterprise-numbers - * - * @note this enterprise ID is assigned to the lwIP project, - * all object identifiers living under this ID are assigned - * by the lwIP maintainers! - * @note don't change this define, use snmp_set_device_enterprise_oid() - * - * If you need to create your own private MIB you'll need - * to apply for your own enterprise ID with IANA: - * http://www.iana.org/numbers.html - */ -#define SNMP_DEVICE_ENTERPRISE_OID {1, 3, 6, 1, 4, 1, SNMP_LWIP_ENTERPRISE_OID} -/** - * Length of SNMP_DEVICE_ENTERPRISE_OID - */ -#define SNMP_DEVICE_ENTERPRISE_OID_LEN 7 -#endif - -/** - * SNMP_DEBUG: Enable debugging for SNMP messages. - */ -#if !defined SNMP_DEBUG || defined __DOXYGEN__ -#define SNMP_DEBUG LWIP_DBG_OFF -#endif - -/** - * SNMP_MIB_DEBUG: Enable debugging for SNMP MIBs. - */ -#if !defined SNMP_MIB_DEBUG || defined __DOXYGEN__ -#define SNMP_MIB_DEBUG LWIP_DBG_OFF -#endif - -/** - * Indicates if the MIB2 implementation of LWIP SNMP stack is used. - */ -#if !defined SNMP_LWIP_MIB2 || defined __DOXYGEN__ -#define SNMP_LWIP_MIB2 LWIP_SNMP -#endif - -/** - * Value return for sysDesc field of MIB2. - */ -#if !defined SNMP_LWIP_MIB2_SYSDESC || defined __DOXYGEN__ -#define SNMP_LWIP_MIB2_SYSDESC "lwIP" -#endif - -/** - * Value return for sysName field of MIB2. - * To make sysName field settable, call snmp_mib2_set_sysname() to provide the necessary buffers. - */ -#if !defined SNMP_LWIP_MIB2_SYSNAME || defined __DOXYGEN__ -#define SNMP_LWIP_MIB2_SYSNAME "FQDN-unk" -#endif - -/** - * Value return for sysContact field of MIB2. - * To make sysContact field settable, call snmp_mib2_set_syscontact() to provide the necessary buffers. - */ -#if !defined SNMP_LWIP_MIB2_SYSCONTACT || defined __DOXYGEN__ -#define SNMP_LWIP_MIB2_SYSCONTACT "" -#endif - -/** - * Value return for sysLocation field of MIB2. - * To make sysLocation field settable, call snmp_mib2_set_syslocation() to provide the necessary buffers. - */ -#if !defined SNMP_LWIP_MIB2_SYSLOCATION || defined __DOXYGEN__ -#define SNMP_LWIP_MIB2_SYSLOCATION "" -#endif - -/** - * This value is used to limit the repetitions processed in GetBulk requests (value == 0 means no limitation). - * This may be useful to limit the load for a single request. - * According to SNMP RFC 1905 it is allowed to not return all requested variables from a GetBulk request if system load would be too high. - * so the effect is that the client will do more requests to gather all data. - * For the stack this could be useful in case that SNMP processing is done in TCP/IP thread. In this situation a request with many - * repetitions could block the thread for a longer time. Setting limit here will keep the stack more responsive. - */ -#if !defined SNMP_LWIP_GETBULK_MAX_REPETITIONS || defined __DOXYGEN__ -#define SNMP_LWIP_GETBULK_MAX_REPETITIONS 0 -#endif - -/** - * @} - */ - -/* - ------------------------------------ - ---------- SNMPv3 options ---------- - ------------------------------------ -*/ - -/** - * LWIP_SNMP_V3==1: This enables EXPERIMENTAL SNMPv3 support. LWIP_SNMP must - * also be enabled. - * THIS IS UNDER DEVELOPMENT AND SHOULD NOT BE ENABLED IN PRODUCTS. - */ -#ifndef LWIP_SNMP_V3 -#define LWIP_SNMP_V3 0 -#endif - -#ifndef LWIP_SNMP_V3_MBEDTLS -#define LWIP_SNMP_V3_MBEDTLS LWIP_SNMP_V3 -#endif - -#ifndef LWIP_SNMP_V3_CRYPTO -#define LWIP_SNMP_V3_CRYPTO LWIP_SNMP_V3_MBEDTLS -#endif - -#ifndef LWIP_SNMP_CONFIGURE_VERSIONS -#define LWIP_SNMP_CONFIGURE_VERSIONS 0 -#endif - -#endif /* LWIP_HDR_SNMP_OPTS_H */ diff --git a/core/c/include/lwip/apps/snmp_scalar.h b/core/c/include/lwip/apps/snmp_scalar.h deleted file mode 100755 index 99bcdf9..0000000 --- a/core/c/include/lwip/apps/snmp_scalar.h +++ /dev/null @@ -1,113 +0,0 @@ -/** - * @file - * SNMP server MIB API to implement scalar nodes - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Martin Hentschel - * - */ - -#ifndef LWIP_HDR_APPS_SNMP_SCALAR_H -#define LWIP_HDR_APPS_SNMP_SCALAR_H - -#include "lwip/apps/snmp_opts.h" -#include "lwip/apps/snmp_core.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ - -/** basic scalar node */ -struct snmp_scalar_node -{ - /** inherited "base class" members */ - struct snmp_leaf_node node; - u8_t asn1_type; - snmp_access_t access; - node_instance_get_value_method get_value; - node_instance_set_test_method set_test; - node_instance_set_value_method set_value; -}; - - -snmp_err_t snmp_scalar_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); -snmp_err_t snmp_scalar_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); - -#define SNMP_SCALAR_CREATE_NODE(oid, access, asn1_type, get_value_method, set_test_method, set_value_method) \ - {{{ SNMP_NODE_SCALAR, (oid) }, \ - snmp_scalar_get_instance, \ - snmp_scalar_get_next_instance }, \ - (asn1_type), (access), (get_value_method), (set_test_method), (set_value_method) } - -#define SNMP_SCALAR_CREATE_NODE_READONLY(oid, asn1_type, get_value_method) SNMP_SCALAR_CREATE_NODE(oid, SNMP_NODE_INSTANCE_READ_ONLY, asn1_type, get_value_method, NULL, NULL) - -/** scalar array node - a tree node which contains scalars only as children */ -struct snmp_scalar_array_node_def -{ - u32_t oid; - u8_t asn1_type; - snmp_access_t access; -}; - -typedef s16_t (*snmp_scalar_array_get_value_method)(const struct snmp_scalar_array_node_def*, void*); -typedef snmp_err_t (*snmp_scalar_array_set_test_method)(const struct snmp_scalar_array_node_def*, u16_t, void*); -typedef snmp_err_t (*snmp_scalar_array_set_value_method)(const struct snmp_scalar_array_node_def*, u16_t, void*); - -/** basic scalar array node */ -struct snmp_scalar_array_node -{ - /** inherited "base class" members */ - struct snmp_leaf_node node; - u16_t array_node_count; - const struct snmp_scalar_array_node_def* array_nodes; - snmp_scalar_array_get_value_method get_value; - snmp_scalar_array_set_test_method set_test; - snmp_scalar_array_set_value_method set_value; -}; - -snmp_err_t snmp_scalar_array_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); -snmp_err_t snmp_scalar_array_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); - -#define SNMP_SCALAR_CREATE_ARRAY_NODE(oid, array_nodes, get_value_method, set_test_method, set_value_method) \ - {{{ SNMP_NODE_SCALAR_ARRAY, (oid) }, \ - snmp_scalar_array_get_instance, \ - snmp_scalar_array_get_next_instance }, \ - (u16_t)LWIP_ARRAYSIZE(array_nodes), (array_nodes), (get_value_method), (set_test_method), (set_value_method) } - -#endif /* LWIP_SNMP */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_SNMP_SCALAR_H */ diff --git a/core/c/include/lwip/apps/snmp_snmpv2_framework.h b/core/c/include/lwip/apps/snmp_snmpv2_framework.h deleted file mode 100755 index 9f4b41c..0000000 --- a/core/c/include/lwip/apps/snmp_snmpv2_framework.h +++ /dev/null @@ -1,32 +0,0 @@ -/* -Generated by LwipMibCompiler -*/ - -#ifndef LWIP_HDR_APPS_SNMP_FRAMEWORK_MIB_H -#define LWIP_HDR_APPS_SNMP_FRAMEWORK_MIB_H - -#include "lwip/apps/snmp_opts.h" -#if LWIP_SNMP - -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - -#include "lwip/apps/snmp_core.h" - -extern const struct snmp_obj_id usmNoAuthProtocol; -extern const struct snmp_obj_id usmHMACMD5AuthProtocol; -extern const struct snmp_obj_id usmHMACSHAAuthProtocol; - -extern const struct snmp_obj_id usmNoPrivProtocol; -extern const struct snmp_obj_id usmDESPrivProtocol; -extern const struct snmp_obj_id usmAESPrivProtocol; - -extern const struct snmp_mib snmpframeworkmib; - -#ifdef __cplusplus -} -#endif /* __cplusplus */ - -#endif /* LWIP_SNMP */ -#endif /* LWIP_HDR_APPS_SNMP_FRAMEWORK_MIB_H */ diff --git a/core/c/include/lwip/apps/snmp_snmpv2_usm.h b/core/c/include/lwip/apps/snmp_snmpv2_usm.h deleted file mode 100755 index ae09baa..0000000 --- a/core/c/include/lwip/apps/snmp_snmpv2_usm.h +++ /dev/null @@ -1,24 +0,0 @@ -/* -Generated by LwipMibCompiler -*/ - -#ifndef LWIP_HDR_APPS_SNMP_USER_BASED_SM_MIB_H -#define LWIP_HDR_APPS_SNMP_USER_BASED_SM_MIB_H - -#include "lwip/apps/snmp_opts.h" -#if LWIP_SNMP - -#ifdef __cplusplus -extern "C" { -#endif /* __cplusplus */ - -#include "lwip/apps/snmp_core.h" - -extern const struct snmp_mib snmpusmmib; - -#ifdef __cplusplus -} -#endif /* __cplusplus */ - -#endif /* LWIP_SNMP */ -#endif /* LWIP_HDR_APPS_SNMP_USER_BASED_SM_MIB_H */ diff --git a/core/c/include/lwip/apps/snmp_table.h b/core/c/include/lwip/apps/snmp_table.h deleted file mode 100755 index 6930d0b..0000000 --- a/core/c/include/lwip/apps/snmp_table.h +++ /dev/null @@ -1,134 +0,0 @@ -/** - * @file - * SNMP server MIB API to implement table nodes - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Martin Hentschel - * - */ - -#ifndef LWIP_HDR_APPS_SNMP_TABLE_H -#define LWIP_HDR_APPS_SNMP_TABLE_H - -#include "lwip/apps/snmp_opts.h" -#include "lwip/apps/snmp_core.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ - -/** default (customizable) read/write table */ -struct snmp_table_col_def -{ - u32_t index; - u8_t asn1_type; - snmp_access_t access; -}; - -/** table node */ -struct snmp_table_node -{ - /** inherited "base class" members */ - struct snmp_leaf_node node; - u16_t column_count; - const struct snmp_table_col_def* columns; - snmp_err_t (*get_cell_instance)(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, struct snmp_node_instance* cell_instance); - snmp_err_t (*get_next_cell_instance)(const u32_t* column, struct snmp_obj_id* row_oid, struct snmp_node_instance* cell_instance); - /** returns object value for the given object identifier */ - node_instance_get_value_method get_value; - /** tests length and/or range BEFORE setting */ - node_instance_set_test_method set_test; - /** sets object value, only called when set_test() was successful */ - node_instance_set_value_method set_value; -}; - -snmp_err_t snmp_table_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); -snmp_err_t snmp_table_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); - -#define SNMP_TABLE_CREATE(oid, columns, get_cell_instance_method, get_next_cell_instance_method, get_value_method, set_test_method, set_value_method) \ - {{{ SNMP_NODE_TABLE, (oid) }, \ - snmp_table_get_instance, \ - snmp_table_get_next_instance }, \ - (u16_t)LWIP_ARRAYSIZE(columns), (columns), \ - (get_cell_instance_method), (get_next_cell_instance_method), \ - (get_value_method), (set_test_method), (set_value_method)} - -#define SNMP_TABLE_GET_COLUMN_FROM_OID(oid) ((oid)[1]) /* first array value is (fixed) row entry (fixed to 1) and 2nd value is column, follow3ed by instance */ - - -/** simple read-only table */ -typedef enum { - SNMP_VARIANT_VALUE_TYPE_U32, - SNMP_VARIANT_VALUE_TYPE_S32, - SNMP_VARIANT_VALUE_TYPE_PTR, - SNMP_VARIANT_VALUE_TYPE_CONST_PTR -} snmp_table_column_data_type_t; - -struct snmp_table_simple_col_def -{ - u32_t index; - u8_t asn1_type; - snmp_table_column_data_type_t data_type; /* depending of what union member is used to store the value*/ -}; - -/** simple read-only table node */ -struct snmp_table_simple_node -{ - /* inherited "base class" members */ - struct snmp_leaf_node node; - u16_t column_count; - const struct snmp_table_simple_col_def* columns; - snmp_err_t (*get_cell_value)(const u32_t* column, const u32_t* row_oid, u8_t row_oid_len, union snmp_variant_value* value, u32_t* value_len); - snmp_err_t (*get_next_cell_instance_and_value)(const u32_t* column, struct snmp_obj_id* row_oid, union snmp_variant_value* value, u32_t* value_len); -}; - -snmp_err_t snmp_table_simple_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); -snmp_err_t snmp_table_simple_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); - -#define SNMP_TABLE_CREATE_SIMPLE(oid, columns, get_cell_value_method, get_next_cell_instance_and_value_method) \ - {{{ SNMP_NODE_TABLE, (oid) }, \ - snmp_table_simple_get_instance, \ - snmp_table_simple_get_next_instance }, \ - (u16_t)LWIP_ARRAYSIZE(columns), (columns), (get_cell_value_method), (get_next_cell_instance_and_value_method) } - -s16_t snmp_table_extract_value_from_s32ref(struct snmp_node_instance* instance, void* value); -s16_t snmp_table_extract_value_from_u32ref(struct snmp_node_instance* instance, void* value); -s16_t snmp_table_extract_value_from_refconstptr(struct snmp_node_instance* instance, void* value); - -#endif /* LWIP_SNMP */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_SNMP_TABLE_H */ diff --git a/core/c/include/lwip/apps/snmp_threadsync.h b/core/c/include/lwip/apps/snmp_threadsync.h deleted file mode 100755 index 5eb3538..0000000 --- a/core/c/include/lwip/apps/snmp_threadsync.h +++ /dev/null @@ -1,114 +0,0 @@ -/** - * @file - * SNMP server MIB API to implement thread synchronization - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Dirk Ziegelmeier - * - */ - -#ifndef LWIP_HDR_APPS_SNMP_THREADSYNC_H -#define LWIP_HDR_APPS_SNMP_THREADSYNC_H - -#include "lwip/apps/snmp_opts.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/apps/snmp_core.h" -#include "lwip/sys.h" - -typedef void (*snmp_threadsync_called_fn)(void* arg); -typedef void (*snmp_threadsync_synchronizer_fn)(snmp_threadsync_called_fn fn, void* arg); - - -/** Thread sync runtime data. For internal usage only. */ -struct threadsync_data -{ - union { - snmp_err_t err; - s16_t s16; - } retval; - union { - const u32_t *root_oid; - void *value; - } arg1; - union { - u8_t root_oid_len; - u16_t len; - } arg2; - const struct snmp_threadsync_node *threadsync_node; - struct snmp_node_instance proxy_instance; -}; - -/** Thread sync instance. Needed EXCATLY once for every thread to be synced into. */ -struct snmp_threadsync_instance -{ - sys_sem_t sem; - sys_mutex_t sem_usage_mutex; - snmp_threadsync_synchronizer_fn sync_fn; - struct threadsync_data data; -}; - -/** SNMP thread sync proxy leaf node */ -struct snmp_threadsync_node -{ - /* inherited "base class" members */ - struct snmp_leaf_node node; - - const struct snmp_leaf_node *target; - struct snmp_threadsync_instance *instance; -}; - -snmp_err_t snmp_threadsync_get_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); -snmp_err_t snmp_threadsync_get_next_instance(const u32_t *root_oid, u8_t root_oid_len, struct snmp_node_instance* instance); - -/** Create thread sync proxy node */ -#define SNMP_CREATE_THREAD_SYNC_NODE(oid, target_leaf_node, threadsync_instance) \ - {{{ SNMP_NODE_THREADSYNC, (oid) }, \ - snmp_threadsync_get_instance, \ - snmp_threadsync_get_next_instance }, \ - (target_leaf_node), \ - (threadsync_instance) } - -/** Create thread sync instance data */ -void snmp_threadsync_init(struct snmp_threadsync_instance *instance, snmp_threadsync_synchronizer_fn sync_fn); - -#endif /* LWIP_SNMP */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_SNMP_THREADSYNC_H */ diff --git a/core/c/include/lwip/apps/snmpv3.h b/core/c/include/lwip/apps/snmpv3.h deleted file mode 100755 index bd7d314..0000000 --- a/core/c/include/lwip/apps/snmpv3.h +++ /dev/null @@ -1,114 +0,0 @@ -/** - * @file - * Additional SNMPv3 functionality RFC3414 and RFC3826. - */ - -/* - * Copyright (c) 2016 Elias Oenal. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * Author: Elias Oenal - */ - -#ifndef LWIP_HDR_APPS_SNMP_V3_H -#define LWIP_HDR_APPS_SNMP_V3_H - -#include "lwip/apps/snmp_opts.h" -#include "lwip/err.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_SNMP && LWIP_SNMP_V3 - -typedef enum -{ - SNMP_V3_AUTH_ALGO_INVAL = 0, - SNMP_V3_AUTH_ALGO_MD5 = 1, - SNMP_V3_AUTH_ALGO_SHA = 2 -} snmpv3_auth_algo_t; - -typedef enum -{ - SNMP_V3_PRIV_ALGO_INVAL = 0, - SNMP_V3_PRIV_ALGO_DES = 1, - SNMP_V3_PRIV_ALGO_AES = 2 -} snmpv3_priv_algo_t; - -typedef enum -{ - SNMP_V3_USER_STORAGETYPE_OTHER = 1, - SNMP_V3_USER_STORAGETYPE_VOLATILE = 2, - SNMP_V3_USER_STORAGETYPE_NONVOLATILE = 3, - SNMP_V3_USER_STORAGETYPE_PERMANENT = 4, - SNMP_V3_USER_STORAGETYPE_READONLY = 5 -} snmpv3_user_storagetype_t; - -/* - * The following callback functions must be implemented by the application. - * There is a dummy implementation in snmpv3_dummy.c. - */ - -void snmpv3_get_engine_id(const char **id, u8_t *len); -err_t snmpv3_set_engine_id(const char* id, u8_t len); - -u32_t snmpv3_get_engine_boots(void); -void snmpv3_set_engine_boots(u32_t boots); - -u32_t snmpv3_get_engine_time(void); -void snmpv3_reset_engine_time(void); - -err_t snmpv3_get_user(const char* username, snmpv3_auth_algo_t *auth_algo, u8_t *auth_key, snmpv3_priv_algo_t *priv_algo, u8_t *priv_key); -u8_t snmpv3_get_amount_of_users(void); -err_t snmpv3_get_user_storagetype(const char *username, snmpv3_user_storagetype_t *storagetype); -err_t snmpv3_get_username(char *username, u8_t index); - -/* The following functions are provided by the SNMPv3 agent */ - -void snmpv3_engine_id_changed(void); -s32_t snmpv3_get_engine_time_internal(void); - -void snmpv3_password_to_key_md5( - const u8_t *password, /* IN */ - size_t passwordlen, /* IN */ - const u8_t *engineID, /* IN - pointer to snmpEngineID */ - u8_t engineLength, /* IN - length of snmpEngineID */ - u8_t *key); /* OUT - pointer to caller 16-octet buffer */ - -void snmpv3_password_to_key_sha( - const u8_t *password, /* IN */ - size_t passwordlen, /* IN */ - const u8_t *engineID, /* IN - pointer to snmpEngineID */ - u8_t engineLength, /* IN - length of snmpEngineID */ - u8_t *key); /* OUT - pointer to caller 20-octet buffer */ - -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_SNMP_V3_H */ diff --git a/core/c/include/lwip/apps/sntp.h b/core/c/include/lwip/apps/sntp.h deleted file mode 100755 index 00135b4..0000000 --- a/core/c/include/lwip/apps/sntp.h +++ /dev/null @@ -1,80 +0,0 @@ -/** - * @file - * SNTP client API - */ - -/* - * Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Frédéric Bernon, Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_APPS_SNTP_H -#define LWIP_HDR_APPS_SNTP_H - -#include "lwip/apps/sntp_opts.h" -#include "lwip/ip_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* SNTP operating modes: default is to poll using unicast. - The mode has to be set before calling sntp_init(). */ -#define SNTP_OPMODE_POLL 0 -#define SNTP_OPMODE_LISTENONLY 1 -void sntp_setoperatingmode(u8_t operating_mode); -u8_t sntp_getoperatingmode(void); - -void sntp_init(void); -void sntp_stop(void); -u8_t sntp_enabled(void); - -void sntp_setserver(u8_t idx, const ip_addr_t *addr); -const ip_addr_t* sntp_getserver(u8_t idx); - -#if SNTP_MONITOR_SERVER_REACHABILITY -u8_t sntp_getreachability(u8_t idx); -#endif /* SNTP_MONITOR_SERVER_REACHABILITY */ - -#if SNTP_SERVER_DNS -void sntp_setservername(u8_t idx, const char *server); -const char *sntp_getservername(u8_t idx); -#endif /* SNTP_SERVER_DNS */ - -#if SNTP_GET_SERVERS_FROM_DHCP -void sntp_servermode_dhcp(int set_servers_from_dhcp); -#else /* SNTP_GET_SERVERS_FROM_DHCP */ -#define sntp_servermode_dhcp(x) -#endif /* SNTP_GET_SERVERS_FROM_DHCP */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_SNTP_H */ diff --git a/core/c/include/lwip/apps/sntp_opts.h b/core/c/include/lwip/apps/sntp_opts.h deleted file mode 100755 index c25a386..0000000 --- a/core/c/include/lwip/apps/sntp_opts.h +++ /dev/null @@ -1,209 +0,0 @@ -/** - * @file - * SNTP client options list - */ - -/* - * Copyright (c) 2007-2009 Frédéric Bernon, Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Frédéric Bernon, Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_APPS_SNTP_OPTS_H -#define LWIP_HDR_APPS_SNTP_OPTS_H - -#include "lwip/opt.h" -#include "lwip/prot/iana.h" - -/** - * @defgroup sntp_opts Options - * @ingroup sntp - * @{ - */ - -/** SNTP macro to change system time in seconds - * Define SNTP_SET_SYSTEM_TIME_US(sec, us) to set the time in microseconds - * instead of this one if you need the additional precision. Alternatively, - * define SNTP_SET_SYSTEM_TIME_NTP(sec, frac) in order to work with native - * NTP timestamps instead. - */ -#if !defined SNTP_SET_SYSTEM_TIME || defined __DOXYGEN__ -#define SNTP_SET_SYSTEM_TIME(sec) LWIP_UNUSED_ARG(sec) -#endif - -/** The maximum number of SNTP servers that can be set */ -#if !defined SNTP_MAX_SERVERS || defined __DOXYGEN__ -#define SNTP_MAX_SERVERS LWIP_DHCP_MAX_NTP_SERVERS -#endif - -/** Set this to 1 to implement the callback function called by dhcp when - * NTP servers are received. */ -#if !defined SNTP_GET_SERVERS_FROM_DHCP || defined __DOXYGEN__ -#define SNTP_GET_SERVERS_FROM_DHCP LWIP_DHCP_GET_NTP_SRV -#endif - -/** Set this to 1 to support DNS names (or IP address strings) to set sntp servers - * One server address/name can be defined as default if SNTP_SERVER_DNS == 1: - * \#define SNTP_SERVER_ADDRESS "pool.ntp.org" - */ -#if !defined SNTP_SERVER_DNS || defined __DOXYGEN__ -#define SNTP_SERVER_DNS 0 -#endif - -/** - * SNTP_DEBUG: Enable debugging for SNTP. - */ -#if !defined SNTP_DEBUG || defined __DOXYGEN__ -#define SNTP_DEBUG LWIP_DBG_OFF -#endif - -/** SNTP server port */ -#if !defined SNTP_PORT || defined __DOXYGEN__ -#define SNTP_PORT LWIP_IANA_PORT_SNTP -#endif - -/** Sanity check: - * Define this to - * - 0 to turn off sanity checks (default; smaller code) - * - >= 1 to check address and port of the response packet to ensure the - * response comes from the server we sent the request to. - * - >= 2 to check returned Originate Timestamp against Transmit Timestamp - * sent to the server (to ensure response to older request). - * - >= 3 @todo: discard reply if any of the VN, Stratum, or Transmit Timestamp - * fields is 0 or the Mode field is not 4 (unicast) or 5 (broadcast). - * - >= 4 @todo: to check that the Root Delay and Root Dispersion fields are each - * greater than or equal to 0 and less than infinity, where infinity is - * currently a cozy number like one second. This check avoids using a - * server whose synchronization source has expired for a very long time. - */ -#if !defined SNTP_CHECK_RESPONSE || defined __DOXYGEN__ -#define SNTP_CHECK_RESPONSE 0 -#endif - -/** Enable round-trip delay compensation. - * Compensate for the round-trip delay by calculating the clock offset from - * the originate, receive, transmit and destination timestamps, as per RFC. - * - * The calculation requires compiler support for 64-bit integers. Also, either - * SNTP_SET_SYSTEM_TIME_US or SNTP_SET_SYSTEM_TIME_NTP has to be implemented - * for setting the system clock with sub-second precision. Likewise, either - * SNTP_GET_SYSTEM_TIME or SNTP_GET_SYSTEM_TIME_NTP needs to be implemented - * with sub-second precision. - * - * Although not strictly required, it makes sense to combine this option with - * SNTP_CHECK_RESPONSE >= 2 for sanity-checking of the received timestamps. - * Also, in order for the round-trip calculation to work, the difference - * between the local clock and the NTP server clock must not be larger than - * about 34 years. If that limit is exceeded, the implementation will fall back - * to setting the clock without compensation. In order to ensure that the local - * clock is always within the permitted range for compensation, even at first - * try, it may be necessary to store at least the current year in non-volatile - * memory. - */ -#if !defined SNTP_COMP_ROUNDTRIP || defined __DOXYGEN__ -#define SNTP_COMP_ROUNDTRIP 0 -#endif - -/** According to the RFC, this shall be a random delay - * between 1 and 5 minutes (in milliseconds) to prevent load peaks. - * This can be defined to a random generation function, - * which must return the delay in milliseconds as u32_t. - * Turned off by default. - */ -#if !defined SNTP_STARTUP_DELAY || defined __DOXYGEN__ -#ifdef LWIP_RAND -#define SNTP_STARTUP_DELAY 1 -#else -#define SNTP_STARTUP_DELAY 0 -#endif -#endif - -/** If you want the startup delay to be a function, define this - * to a function (including the brackets) and define SNTP_STARTUP_DELAY to 1. - */ -#if !defined SNTP_STARTUP_DELAY_FUNC || defined __DOXYGEN__ -#define SNTP_STARTUP_DELAY_FUNC (LWIP_RAND() % 5000) -#endif - -/** SNTP receive timeout - in milliseconds - * Also used as retry timeout - this shouldn't be too low. - * Default is 15 seconds. Must not be beolw 15 seconds by specification (i.e. 15000) - */ -#if !defined SNTP_RECV_TIMEOUT || defined __DOXYGEN__ -#define SNTP_RECV_TIMEOUT 15000 -#endif - -/** SNTP update delay - in milliseconds - * Default is 1 hour. Must not be beolw 60 seconds by specification (i.e. 60000) - */ -#if !defined SNTP_UPDATE_DELAY || defined __DOXYGEN__ -#define SNTP_UPDATE_DELAY 3600000 -#endif - -/** SNTP macro to get system time, used with SNTP_CHECK_RESPONSE >= 2 - * to send in request and compare in response. Also used for round-trip - * delay compensation if SNTP_COMP_ROUNDTRIP != 0. - * Alternatively, define SNTP_GET_SYSTEM_TIME_NTP(sec, frac) in order to - * work with native NTP timestamps instead. - */ -#if !defined SNTP_GET_SYSTEM_TIME || defined __DOXYGEN__ -#define SNTP_GET_SYSTEM_TIME(sec, us) do { (sec) = 0; (us) = 0; } while(0) -#endif - -/** Default retry timeout (in milliseconds) if the response - * received is invalid. - * This is doubled with each retry until SNTP_RETRY_TIMEOUT_MAX is reached. - */ -#if !defined SNTP_RETRY_TIMEOUT || defined __DOXYGEN__ -#define SNTP_RETRY_TIMEOUT SNTP_RECV_TIMEOUT -#endif - -/** Maximum retry timeout (in milliseconds). */ -#if !defined SNTP_RETRY_TIMEOUT_MAX || defined __DOXYGEN__ -#define SNTP_RETRY_TIMEOUT_MAX (SNTP_RETRY_TIMEOUT * 10) -#endif - -/** Increase retry timeout with every retry sent - * Default is on to conform to RFC. - */ -#if !defined SNTP_RETRY_TIMEOUT_EXP || defined __DOXYGEN__ -#define SNTP_RETRY_TIMEOUT_EXP 1 -#endif - -/** Keep a reachability shift register per server - * Default is on to conform to RFC. - */ -#if !defined SNTP_MONITOR_SERVER_REACHABILITY || defined __DOXYGEN__ -#define SNTP_MONITOR_SERVER_REACHABILITY 1 -#endif - -/** - * @} - */ - -#endif /* LWIP_HDR_APPS_SNTP_OPTS_H */ diff --git a/core/c/include/lwip/apps/tftp_opts.h b/core/c/include/lwip/apps/tftp_opts.h deleted file mode 100755 index d187b82..0000000 --- a/core/c/include/lwip/apps/tftp_opts.h +++ /dev/null @@ -1,106 +0,0 @@ -/** - * - * @file tftp_opts.h - * - * @author Logan Gunthorpe - * - * @brief Trivial File Transfer Protocol (RFC 1350) implementation options - * - * Copyright (c) Deltatee Enterprises Ltd. 2013 - * All rights reserved. - * - */ - -/* - * Redistribution and use in source and binary forms, with or without - * modification,are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO - * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * Author: Logan Gunthorpe - * - */ - -#ifndef LWIP_HDR_APPS_TFTP_OPTS_H -#define LWIP_HDR_APPS_TFTP_OPTS_H - -#include "lwip/opt.h" -#include "lwip/prot/iana.h" - -/** - * @defgroup tftp_opts Options - * @ingroup tftp - * @{ - */ - -/** - * Enable TFTP debug messages - */ -#if !defined TFTP_DEBUG || defined __DOXYGEN__ -#define TFTP_DEBUG LWIP_DBG_OFF -#endif - -/** - * TFTP server port - */ -#if !defined TFTP_PORT || defined __DOXYGEN__ -#define TFTP_PORT LWIP_IANA_PORT_TFTP -#endif - -/** - * TFTP timeout - */ -#if !defined TFTP_TIMEOUT_MSECS || defined __DOXYGEN__ -#define TFTP_TIMEOUT_MSECS 10000 -#endif - -/** - * Max. number of retries when a file is read from server - */ -#if !defined TFTP_MAX_RETRIES || defined __DOXYGEN__ -#define TFTP_MAX_RETRIES 5 -#endif - -/** - * TFTP timer cyclic interval - */ -#if !defined TFTP_TIMER_MSECS || defined __DOXYGEN__ -#define TFTP_TIMER_MSECS (TFTP_TIMEOUT_MSECS / 10) -#endif - -/** - * Max. length of TFTP filename - */ -#if !defined TFTP_MAX_FILENAME_LEN || defined __DOXYGEN__ -#define TFTP_MAX_FILENAME_LEN 20 -#endif - -/** - * Max. length of TFTP mode - */ -#if !defined TFTP_MAX_MODE_LEN || defined __DOXYGEN__ -#define TFTP_MAX_MODE_LEN 7 -#endif - -/** - * @} - */ - -#endif /* LWIP_HDR_APPS_TFTP_OPTS_H */ diff --git a/core/c/include/lwip/apps/tftp_server.h b/core/c/include/lwip/apps/tftp_server.h deleted file mode 100755 index 3ce5e40..0000000 --- a/core/c/include/lwip/apps/tftp_server.h +++ /dev/null @@ -1,95 +0,0 @@ -/** - * - * @file tftp_server.h - * - * @author Logan Gunthorpe - * - * @brief Trivial File Transfer Protocol (RFC 1350) - * - * Copyright (c) Deltatee Enterprises Ltd. 2013 - * All rights reserved. - * - */ - -/* - * Redistribution and use in source and binary forms, with or without - * modification,are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO - * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * Author: Logan Gunthorpe - * - */ - -#ifndef LWIP_HDR_APPS_TFTP_SERVER_H -#define LWIP_HDR_APPS_TFTP_SERVER_H - -#include "lwip/apps/tftp_opts.h" -#include "lwip/err.h" -#include "lwip/pbuf.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** @ingroup tftp - * TFTP context containing callback functions for TFTP transfers - */ -struct tftp_context { - /** - * Open file for read/write. - * @param fname Filename - * @param mode Mode string from TFTP RFC 1350 (netascii, octet, mail) - * @param write Flag indicating read (0) or write (!= 0) access - * @returns File handle supplied to other functions - */ - void* (*open)(const char* fname, const char* mode, u8_t write); - /** - * Close file handle - * @param handle File handle returned by open() - */ - void (*close)(void* handle); - /** - * Read from file - * @param handle File handle returned by open() - * @param buf Target buffer to copy read data to - * @param bytes Number of bytes to copy to buf - * @returns >= 0: Success; < 0: Error - */ - int (*read)(void* handle, void* buf, int bytes); - /** - * Write to file - * @param handle File handle returned by open() - * @param pbuf PBUF adjusted such that payload pointer points - * to the beginning of write data. In other words, - * TFTP headers are stripped off. - * @returns >= 0: Success; < 0: Error - */ - int (*write)(void* handle, struct pbuf* p); -}; - -err_t tftp_init(const struct tftp_context* ctx); -void tftp_cleanup(void); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_APPS_TFTP_SERVER_H */ diff --git a/core/c/include/lwip/arch.h b/core/c/include/lwip/arch.h deleted file mode 100755 index d281da7..0000000 --- a/core/c/include/lwip/arch.h +++ /dev/null @@ -1,393 +0,0 @@ -/** - * @file - * Support for different processor and compiler architectures - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_ARCH_H -#define LWIP_HDR_ARCH_H - -#ifndef LITTLE_ENDIAN -#define LITTLE_ENDIAN 1234 -#endif - -#ifndef BIG_ENDIAN -#define BIG_ENDIAN 4321 -#endif - -#include "arch/cc.h" - -/** - * @defgroup compiler_abstraction Compiler/platform abstraction - * @ingroup sys_layer - * All defines related to this section must not be placed in lwipopts.h, - * but in arch/cc.h! - * If the compiler does not provide memset() this file must include a - * definition of it, or include a file which defines it. - * These options cannot be \#defined in lwipopts.h since they are not options - * of lwIP itself, but options of the lwIP port to your system. - * @{ - */ - -/** Define the byte order of the system. - * Needed for conversion of network data to host byte order. - * Allowed values: LITTLE_ENDIAN and BIG_ENDIAN - */ -#ifndef BYTE_ORDER -#define BYTE_ORDER LITTLE_ENDIAN -#endif - -/** Define random number generator function of your system */ -#ifdef __DOXYGEN__ -#define LWIP_RAND() ((u32_t)rand()) -#endif - -/** Platform specific diagnostic output.\n - * Note the default implementation pulls in printf, which may - * in turn pull in a lot of standard libary code. In resource-constrained - * systems, this should be defined to something less resource-consuming. - */ -#ifndef LWIP_PLATFORM_DIAG -#define LWIP_PLATFORM_DIAG(x) do {printf x;} while(0) -#include -#include -#endif - -/** Platform specific assertion handling.\n - * Note the default implementation pulls in printf, fflush and abort, which may - * in turn pull in a lot of standard libary code. In resource-constrained - * systems, this should be defined to something less resource-consuming. - */ -#ifndef LWIP_PLATFORM_ASSERT -#define LWIP_PLATFORM_ASSERT(x) do {printf("Assertion \"%s\" failed at line %d in %s\n", \ - x, __LINE__, __FILE__); fflush(NULL); abort();} while(0) -#include -#include -#endif - -/** Define this to 1 in arch/cc.h of your port if you do not want to - * include stddef.h header to get size_t. You need to typedef size_t - * by yourself in this case. - */ -#ifndef LWIP_NO_STDDEF_H -#define LWIP_NO_STDDEF_H 0 -#endif - -#if !LWIP_NO_STDDEF_H -#include /* for size_t */ -#endif - -/** Define this to 1 in arch/cc.h of your port if your compiler does not provide - * the stdint.h header. You need to typedef the generic types listed in - * lwip/arch.h yourself in this case (u8_t, u16_t...). - */ -#ifndef LWIP_NO_STDINT_H -#define LWIP_NO_STDINT_H 0 -#endif - -/* Define generic types used in lwIP */ -#if !LWIP_NO_STDINT_H -#include -/* stdint.h is C99 which should also provide support for 64-bit integers */ -#if !defined(LWIP_HAVE_INT64) && defined(UINT64_MAX) -#define LWIP_HAVE_INT64 1 -#endif -typedef uint8_t u8_t; -typedef int8_t s8_t; -typedef uint16_t u16_t; -typedef int16_t s16_t; -typedef uint32_t u32_t; -typedef int32_t s32_t; -#if LWIP_HAVE_INT64 -typedef uint64_t u64_t; -typedef int64_t s64_t; -#endif -typedef uintptr_t mem_ptr_t; -#endif - -/** Define this to 1 in arch/cc.h of your port if your compiler does not provide - * the inttypes.h header. You need to define the format strings listed in - * lwip/arch.h yourself in this case (X8_F, U16_F...). - */ -#ifndef LWIP_NO_INTTYPES_H -#define LWIP_NO_INTTYPES_H 0 -#endif - -/* Define (sn)printf formatters for these lwIP types */ -#if !LWIP_NO_INTTYPES_H -#include -#ifndef X8_F -#define X8_F "02" PRIx8 -#endif -#ifndef U16_F -#define U16_F PRIu16 -#endif -#ifndef S16_F -#define S16_F PRId16 -#endif -#ifndef X16_F -#define X16_F PRIx16 -#endif -#ifndef U32_F -#define U32_F PRIu32 -#endif -#ifndef S32_F -#define S32_F PRId32 -#endif -#ifndef X32_F -#define X32_F PRIx32 -#endif -#ifndef SZT_F -#define SZT_F PRIuPTR -#endif -#endif - -/** Define this to 1 in arch/cc.h of your port if your compiler does not provide - * the limits.h header. You need to define the type limits yourself in this case - * (e.g. INT_MAX, SSIZE_MAX). - */ -#ifndef LWIP_NO_LIMITS_H -#define LWIP_NO_LIMITS_H 0 -#endif - -/* Include limits.h? */ -#if !LWIP_NO_LIMITS_H -#include -#endif - -/* Do we need to define ssize_t? This is a compatibility hack: - * Unfortunately, this type seems to be unavailable on some systems (even if - * sys/types or unistd.h are available). - * Being like that, we define it to 'int' if SSIZE_MAX is not defined. - */ -#ifdef SSIZE_MAX -/* If SSIZE_MAX is defined, unistd.h should provide the type as well */ -#ifndef LWIP_NO_UNISTD_H -#define LWIP_NO_UNISTD_H 0 -#endif -#if !LWIP_NO_UNISTD_H -#include -#endif -#else /* SSIZE_MAX */ -typedef int ssize_t; -#define SSIZE_MAX INT_MAX -#endif /* SSIZE_MAX */ - -/* some maximum values needed in lwip code */ -#define LWIP_UINT32_MAX 0xffffffff - -/** Define this to 1 in arch/cc.h of your port if your compiler does not provide - * the ctype.h header. If ctype.h is available, a few character functions - * are mapped to the appropriate functions (lwip_islower, lwip_isdigit...), if - * not, a private implementation is provided. - */ -#ifndef LWIP_NO_CTYPE_H -#define LWIP_NO_CTYPE_H 0 -#endif - -#if LWIP_NO_CTYPE_H -#define lwip_in_range(c, lo, up) ((u8_t)(c) >= (lo) && (u8_t)(c) <= (up)) -#define lwip_isdigit(c) lwip_in_range((c), '0', '9') -#define lwip_isxdigit(c) (lwip_isdigit(c) || lwip_in_range((c), 'a', 'f') || lwip_in_range((c), 'A', 'F')) -#define lwip_islower(c) lwip_in_range((c), 'a', 'z') -#define lwip_isspace(c) ((c) == ' ' || (c) == '\f' || (c) == '\n' || (c) == '\r' || (c) == '\t' || (c) == '\v') -#define lwip_isupper(c) lwip_in_range((c), 'A', 'Z') -#define lwip_tolower(c) (lwip_isupper(c) ? (c) - 'A' + 'a' : c) -#define lwip_toupper(c) (lwip_islower(c) ? (c) - 'a' + 'A' : c) -#else -#include -#define lwip_isdigit(c) isdigit((unsigned char)(c)) -#define lwip_isxdigit(c) isxdigit((unsigned char)(c)) -#define lwip_islower(c) islower((unsigned char)(c)) -#define lwip_isspace(c) isspace((unsigned char)(c)) -#define lwip_isupper(c) isupper((unsigned char)(c)) -#define lwip_tolower(c) tolower((unsigned char)(c)) -#define lwip_toupper(c) toupper((unsigned char)(c)) -#endif - -/** C++ const_cast(val) equivalent to remove constness from a value (GCC -Wcast-qual) */ -#ifndef LWIP_CONST_CAST -#define LWIP_CONST_CAST(target_type, val) ((target_type)((ptrdiff_t)val)) -#endif - -/** Get rid of alignment cast warnings (GCC -Wcast-align) */ -#ifndef LWIP_ALIGNMENT_CAST -#define LWIP_ALIGNMENT_CAST(target_type, val) LWIP_CONST_CAST(target_type, val) -#endif - -/** Get rid of warnings related to pointer-to-numeric and vice-versa casts, - * e.g. "conversion from 'u8_t' to 'void *' of greater size" - */ -#ifndef LWIP_PTR_NUMERIC_CAST -#define LWIP_PTR_NUMERIC_CAST(target_type, val) LWIP_CONST_CAST(target_type, val) -#endif - -/** Avoid warnings/errors related to implicitly casting away packed attributes by doing a explicit cast */ -#ifndef LWIP_PACKED_CAST -#define LWIP_PACKED_CAST(target_type, val) LWIP_CONST_CAST(target_type, val) -#endif - -/** Allocates a memory buffer of specified size that is of sufficient size to align - * its start address using LWIP_MEM_ALIGN. - * You can declare your own version here e.g. to enforce alignment without adding - * trailing padding bytes (see LWIP_MEM_ALIGN_BUFFER) or your own section placement - * requirements.\n - * e.g. if you use gcc and need 32 bit alignment:\n - * \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u8_t variable_name[size] \_\_attribute\_\_((aligned(4)))\n - * or more portable:\n - * \#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u32_t variable_name[(size + sizeof(u32_t) - 1) / sizeof(u32_t)] - */ -#ifndef LWIP_DECLARE_MEMORY_ALIGNED -#define LWIP_DECLARE_MEMORY_ALIGNED(variable_name, size) u8_t variable_name[LWIP_MEM_ALIGN_BUFFER(size)] -#endif - -/** Calculate memory size for an aligned buffer - returns the next highest - * multiple of MEM_ALIGNMENT (e.g. LWIP_MEM_ALIGN_SIZE(3) and - * LWIP_MEM_ALIGN_SIZE(4) will both yield 4 for MEM_ALIGNMENT == 4). - */ -#ifndef LWIP_MEM_ALIGN_SIZE -#define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1U) & ~(MEM_ALIGNMENT-1U)) -#endif - -/** Calculate safe memory size for an aligned buffer when using an unaligned - * type as storage. This includes a safety-margin on (MEM_ALIGNMENT - 1) at the - * start (e.g. if buffer is u8_t[] and actual data will be u32_t*) - */ -#ifndef LWIP_MEM_ALIGN_BUFFER -#define LWIP_MEM_ALIGN_BUFFER(size) (((size) + MEM_ALIGNMENT - 1U)) -#endif - -/** Align a memory pointer to the alignment defined by MEM_ALIGNMENT - * so that ADDR % MEM_ALIGNMENT == 0 - */ -#ifndef LWIP_MEM_ALIGN -#define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1))) -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -/** Packed structs support. - * Placed BEFORE declaration of a packed struct.\n - * For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n - * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. - */ -#ifndef PACK_STRUCT_BEGIN -#define PACK_STRUCT_BEGIN -#endif /* PACK_STRUCT_BEGIN */ - -/** Packed structs support. - * Placed AFTER declaration of a packed struct.\n - * For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n - * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. - */ -#ifndef PACK_STRUCT_END -#define PACK_STRUCT_END -#endif /* PACK_STRUCT_END */ - -/** Packed structs support. - * Placed between end of declaration of a packed struct and trailing semicolon.\n - * For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n - * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. - */ -#ifndef PACK_STRUCT_STRUCT -#if defined(__GNUC__) || defined(__clang__) -#define PACK_STRUCT_STRUCT __attribute__((packed)) -#else -#define PACK_STRUCT_STRUCT -#endif -#endif /* PACK_STRUCT_STRUCT */ - -/** Packed structs support. - * Wraps u32_t and u16_t members.\n - * For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n - * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. - */ -#ifndef PACK_STRUCT_FIELD -#define PACK_STRUCT_FIELD(x) x -#endif /* PACK_STRUCT_FIELD */ - -/** Packed structs support. - * Wraps u8_t members, where some compilers warn that packing is not necessary.\n - * For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n - * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. - */ -#ifndef PACK_STRUCT_FLD_8 -#define PACK_STRUCT_FLD_8(x) PACK_STRUCT_FIELD(x) -#endif /* PACK_STRUCT_FLD_8 */ - -/** Packed structs support. - * Wraps members that are packed structs themselves, where some compilers warn that packing is not necessary.\n - * For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n - * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. - */ -#ifndef PACK_STRUCT_FLD_S -#define PACK_STRUCT_FLD_S(x) PACK_STRUCT_FIELD(x) -#endif /* PACK_STRUCT_FLD_S */ - -/** PACK_STRUCT_USE_INCLUDES==1: Packed structs support using \#include files before and after struct to be packed.\n - * The file included BEFORE the struct is "arch/bpstruct.h".\n - * The file included AFTER the struct is "arch/epstruct.h".\n - * This can be used to implement struct packing on MS Visual C compilers, see - * the Win32 port in the lwIP contrib repository for reference. - * For examples of packed struct declarations, see include/lwip/prot/ subfolder.\n - * A port to GCC/clang is included in lwIP, if you use these compilers there is nothing to do here. - */ -#ifdef __DOXYGEN__ -#define PACK_STRUCT_USE_INCLUDES -#endif - -/** Eliminates compiler warning about unused arguments (GCC -Wextra -Wunused). */ -#ifndef LWIP_UNUSED_ARG -#define LWIP_UNUSED_ARG(x) (void)x -#endif /* LWIP_UNUSED_ARG */ - -/** LWIP_PROVIDE_ERRNO==1: Let lwIP provide ERRNO values and the 'errno' variable. - * If this is disabled, cc.h must either define 'errno', include , - * define LWIP_ERRNO_STDINCLUDE to get included or - * define LWIP_ERRNO_INCLUDE to or equivalent. - */ -#if defined __DOXYGEN__ -#define LWIP_PROVIDE_ERRNO -#endif - -/** - * @} - */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_ARCH_H */ diff --git a/core/c/include/lwip/autoip.h b/core/c/include/lwip/autoip.h deleted file mode 100755 index 5c6d13e..0000000 --- a/core/c/include/lwip/autoip.h +++ /dev/null @@ -1,99 +0,0 @@ -/** - * @file - * - * AutoIP Automatic LinkLocal IP Configuration - */ - -/* - * - * Copyright (c) 2007 Dominik Spies - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * Author: Dominik Spies - * - * This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform - * with RFC 3927. - * - */ - -#ifndef LWIP_HDR_AUTOIP_H -#define LWIP_HDR_AUTOIP_H - -#include "lwip/opt.h" - -#if LWIP_IPV4 && LWIP_AUTOIP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/netif.h" -/* #include "lwip/udp.h" */ -#include "lwip/etharp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** AutoIP Timing */ -#define AUTOIP_TMR_INTERVAL 100 -#define AUTOIP_TICKS_PER_SECOND (1000 / AUTOIP_TMR_INTERVAL) - -/** AutoIP state information per netif */ -struct autoip -{ - /** the currently selected, probed, announced or used LL IP-Address */ - ip4_addr_t llipaddr; - /** current AutoIP state machine state */ - u8_t state; - /** sent number of probes or announces, dependent on state */ - u8_t sent_num; - /** ticks to wait, tick is AUTOIP_TMR_INTERVAL long */ - u16_t ttw; - /** ticks until a conflict can be solved by defending */ - u8_t lastconflict; - /** total number of probed/used Link Local IP-Addresses */ - u8_t tried_llipaddr; -}; - - -void autoip_set_struct(struct netif *netif, struct autoip *autoip); -/** Remove a struct autoip previously set to the netif using autoip_set_struct() */ -#define autoip_remove_struct(netif) do { (netif)->autoip = NULL; } while (0) -err_t autoip_start(struct netif *netif); -err_t autoip_stop(struct netif *netif); -void autoip_arp_reply(struct netif *netif, struct etharp_hdr *hdr); -void autoip_tmr(void); -void autoip_network_changed(struct netif *netif); -u8_t autoip_supplied_address(const struct netif *netif); - -/* for lwIP internal use by ip4.c */ -u8_t autoip_accept_packet(struct netif *netif, const ip4_addr_t *addr); - -#define netif_autoip_data(netif) ((struct autoip*)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP)) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV4 && LWIP_AUTOIP */ - -#endif /* LWIP_HDR_AUTOIP_H */ diff --git a/core/c/include/lwip/debug.h b/core/c/include/lwip/debug.h deleted file mode 100755 index 346ac47..0000000 --- a/core/c/include/lwip/debug.h +++ /dev/null @@ -1,161 +0,0 @@ -/** - * @file - * Debug messages infrastructure - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_DEBUG_H -#define LWIP_HDR_DEBUG_H - -#include "lwip/arch.h" -#include "lwip/opt.h" - -/** - * @defgroup debugging_levels LWIP_DBG_MIN_LEVEL and LWIP_DBG_TYPES_ON values - * @ingroup lwip_opts_debugmsg - * @{ - */ - -/** @name Debug level (LWIP_DBG_MIN_LEVEL) - * @{ - */ -/** Debug level: ALL messages*/ -#define LWIP_DBG_LEVEL_ALL 0x00 -/** Debug level: Warnings. bad checksums, dropped packets, ... */ -#define LWIP_DBG_LEVEL_WARNING 0x01 -/** Debug level: Serious. memory allocation failures, ... */ -#define LWIP_DBG_LEVEL_SERIOUS 0x02 -/** Debug level: Severe */ -#define LWIP_DBG_LEVEL_SEVERE 0x03 -/** - * @} - */ - -#define LWIP_DBG_MASK_LEVEL 0x03 -/* compatibility define only */ -#define LWIP_DBG_LEVEL_OFF LWIP_DBG_LEVEL_ALL - -/** @name Enable/disable debug messages completely (LWIP_DBG_TYPES_ON) - * @{ - */ -/** flag for LWIP_DEBUGF to enable that debug message */ -#define LWIP_DBG_ON 0x80U -/** flag for LWIP_DEBUGF to disable that debug message */ -#define LWIP_DBG_OFF 0x00U -/** - * @} - */ - -/** @name Debug message types (LWIP_DBG_TYPES_ON) - * @{ - */ -/** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */ -#define LWIP_DBG_TRACE 0x40U -/** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */ -#define LWIP_DBG_STATE 0x20U -/** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */ -#define LWIP_DBG_FRESH 0x10U -/** flag for LWIP_DEBUGF to halt after printing this debug message */ -#define LWIP_DBG_HALT 0x08U -/** - * @} - */ - -/** - * @} - */ - -/** - * @defgroup lwip_assertions Assertion handling - * @ingroup lwip_opts_debug - * @{ - */ -/** - * LWIP_NOASSERT: Disable LWIP_ASSERT checks: - * To disable assertions define LWIP_NOASSERT in arch/cc.h. - */ -#ifdef __DOXYGEN__ -#define LWIP_NOASSERT -#undef LWIP_NOASSERT -#endif -/** - * @} - */ - -#ifndef LWIP_NOASSERT -#define LWIP_ASSERT(message, assertion) do { if (!(assertion)) { \ - LWIP_PLATFORM_ASSERT(message); }} while(0) -#else /* LWIP_NOASSERT */ -#define LWIP_ASSERT(message, assertion) -#endif /* LWIP_NOASSERT */ - -#ifndef LWIP_ERROR -#ifndef LWIP_NOASSERT -#define LWIP_PLATFORM_ERROR(message) LWIP_PLATFORM_ASSERT(message) -#elif defined LWIP_DEBUG -#define LWIP_PLATFORM_ERROR(message) LWIP_PLATFORM_DIAG((message)) -#else -#define LWIP_PLATFORM_ERROR(message) -#endif - -/* if "expression" isn't true, then print "message" and execute "handler" expression */ -#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \ - LWIP_PLATFORM_ERROR(message); handler;}} while(0) -#endif /* LWIP_ERROR */ - -/** Enable debug message printing, but only if debug message type is enabled - * AND is of correct type AND is at least LWIP_DBG_LEVEL. - */ -#ifdef __DOXYGEN__ -#define LWIP_DEBUG -#undef LWIP_DEBUG -#endif - -#ifdef LWIP_DEBUG -#define LWIP_DEBUGF(debug, message) do { \ - if ( \ - ((debug) & LWIP_DBG_ON) && \ - ((debug) & LWIP_DBG_TYPES_ON) && \ - ((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \ - LWIP_PLATFORM_DIAG(message); \ - if ((debug) & LWIP_DBG_HALT) { \ - while(1); \ - } \ - } \ - } while(0) - -#else /* LWIP_DEBUG */ -#define LWIP_DEBUGF(debug, message) -#endif /* LWIP_DEBUG */ - -#endif /* LWIP_HDR_DEBUG_H */ diff --git a/core/c/include/lwip/def.h b/core/c/include/lwip/def.h deleted file mode 100755 index 10b5ac2..0000000 --- a/core/c/include/lwip/def.h +++ /dev/null @@ -1,152 +0,0 @@ -/** - * @file - * various utility macros - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -/** - * @defgroup perf Performance measurement - * @ingroup sys_layer - * All defines related to this section must not be placed in lwipopts.h, - * but in arch/perf.h! - * Measurement calls made throughout lwip, these can be defined to nothing. - * - PERF_START: start measuring something. - * - PERF_STOP(x): stop measuring something, and record the result. - */ - -#ifndef LWIP_HDR_DEF_H -#define LWIP_HDR_DEF_H - -/* arch.h might define NULL already */ -#include "lwip/arch.h" -#include "lwip/opt.h" -#if LWIP_PERF -#include "arch/perf.h" -#else /* LWIP_PERF */ -#define PERF_START /* null definition */ -#define PERF_STOP(x) /* null definition */ -#endif /* LWIP_PERF */ - -#ifdef __cplusplus -extern "C" { -#endif - -#define LWIP_MAX(x , y) (((x) > (y)) ? (x) : (y)) -#define LWIP_MIN(x , y) (((x) < (y)) ? (x) : (y)) - -/* Get the number of entries in an array ('x' must NOT be a pointer!) */ -#define LWIP_ARRAYSIZE(x) (sizeof(x)/sizeof((x)[0])) - -/** Create u32_t value from bytes */ -#define LWIP_MAKEU32(a,b,c,d) (((u32_t)((a) & 0xff) << 24) | \ - ((u32_t)((b) & 0xff) << 16) | \ - ((u32_t)((c) & 0xff) << 8) | \ - (u32_t)((d) & 0xff)) - -#ifndef NULL -#ifdef __cplusplus -#define NULL 0 -#else -#define NULL ((void *)0) -#endif -#endif - -#if BYTE_ORDER == BIG_ENDIAN -#define lwip_htons(x) ((u16_t)(x)) -#define lwip_ntohs(x) ((u16_t)(x)) -#define lwip_htonl(x) ((u32_t)(x)) -#define lwip_ntohl(x) ((u32_t)(x)) -#define PP_HTONS(x) ((u16_t)(x)) -#define PP_NTOHS(x) ((u16_t)(x)) -#define PP_HTONL(x) ((u32_t)(x)) -#define PP_NTOHL(x) ((u32_t)(x)) -#else /* BYTE_ORDER != BIG_ENDIAN */ -#ifndef lwip_htons -u16_t lwip_htons(u16_t x); -#endif -#define lwip_ntohs(x) lwip_htons(x) - -#ifndef lwip_htonl -u32_t lwip_htonl(u32_t x); -#endif -#define lwip_ntohl(x) lwip_htonl(x) - -/* These macros should be calculated by the preprocessor and are used - with compile-time constants only (so that there is no little-endian - overhead at runtime). */ -#define PP_HTONS(x) ((u16_t)((((x) & (u16_t)0x00ffU) << 8) | (((x) & (u16_t)0xff00U) >> 8))) -#define PP_NTOHS(x) PP_HTONS(x) -#define PP_HTONL(x) ((((x) & (u32_t)0x000000ffUL) << 24) | \ - (((x) & (u32_t)0x0000ff00UL) << 8) | \ - (((x) & (u32_t)0x00ff0000UL) >> 8) | \ - (((x) & (u32_t)0xff000000UL) >> 24)) -#define PP_NTOHL(x) PP_HTONL(x) -#endif /* BYTE_ORDER == BIG_ENDIAN */ - -/* Provide usual function names as macros for users, but this can be turned off */ -#ifndef LWIP_DONT_PROVIDE_BYTEORDER_FUNCTIONS -#define htons(x) lwip_htons(x) -#define ntohs(x) lwip_ntohs(x) -#define htonl(x) lwip_htonl(x) -#define ntohl(x) lwip_ntohl(x) -#endif - -/* Functions that are not available as standard implementations. - * In cc.h, you can #define these to implementations available on - * your platform to save some code bytes if you use these functions - * in your application, too. - */ - -#ifndef lwip_itoa -/* This can be #defined to itoa() or snprintf(result, bufsize, "%d", number) depending on your platform */ -void lwip_itoa(char* result, size_t bufsize, int number); -#endif -#ifndef lwip_strnicmp -/* This can be #defined to strnicmp() or strncasecmp() depending on your platform */ -int lwip_strnicmp(const char* str1, const char* str2, size_t len); -#endif -#ifndef lwip_stricmp -/* This can be #defined to stricmp() or strcasecmp() depending on your platform */ -int lwip_stricmp(const char* str1, const char* str2); -#endif -#ifndef lwip_strnstr -/* This can be #defined to strnstr() depending on your platform */ -char* lwip_strnstr(const char* buffer, const char* token, size_t n); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_DEF_H */ diff --git a/core/c/include/lwip/dhcp.h b/core/c/include/lwip/dhcp.h deleted file mode 100755 index a965efd..0000000 --- a/core/c/include/lwip/dhcp.h +++ /dev/null @@ -1,139 +0,0 @@ -/** - * @file - * DHCP client API - */ - -/* - * Copyright (c) 2001-2004 Leon Woestenberg - * Copyright (c) 2001-2004 Axon Digital Design B.V., The Netherlands. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Leon Woestenberg - * - */ -#ifndef LWIP_HDR_DHCP_H -#define LWIP_HDR_DHCP_H - -#include "lwip/opt.h" - -#if LWIP_DHCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/netif.h" -#include "lwip/udp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** period (in seconds) of the application calling dhcp_coarse_tmr() */ -#define DHCP_COARSE_TIMER_SECS 60 -/** period (in milliseconds) of the application calling dhcp_coarse_tmr() */ -#define DHCP_COARSE_TIMER_MSECS (DHCP_COARSE_TIMER_SECS * 1000UL) -/** period (in milliseconds) of the application calling dhcp_fine_tmr() */ -#define DHCP_FINE_TIMER_MSECS 500 - -#define DHCP_BOOT_FILE_LEN 128U - -/* AutoIP cooperation flags (struct dhcp.autoip_coop_state) */ -typedef enum { - DHCP_AUTOIP_COOP_STATE_OFF = 0, - DHCP_AUTOIP_COOP_STATE_ON = 1 -} dhcp_autoip_coop_state_enum_t; - -struct dhcp -{ - /** transaction identifier of last sent request */ - u32_t xid; - /** track PCB allocation state */ - u8_t pcb_allocated; - /** current DHCP state machine state */ - u8_t state; - /** retries of current request */ - u8_t tries; -#if LWIP_DHCP_AUTOIP_COOP - u8_t autoip_coop_state; -#endif - u8_t subnet_mask_given; - - u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */ - u16_t t1_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */ - u16_t t2_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */ - u16_t t1_renew_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next renew try */ - u16_t t2_rebind_time; /* #ticks with period DHCP_COARSE_TIMER_SECS until next rebind try */ - u16_t lease_used; /* #ticks with period DHCP_COARSE_TIMER_SECS since last received DHCP ack */ - u16_t t0_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for lease time */ - ip_addr_t server_ip_addr; /* dhcp server address that offered this lease (ip_addr_t because passed to UDP) */ - ip4_addr_t offered_ip_addr; - ip4_addr_t offered_sn_mask; - ip4_addr_t offered_gw_addr; - - u32_t offered_t0_lease; /* lease period (in seconds) */ - u32_t offered_t1_renew; /* recommended renew time (usually 50% of lease period) */ - u32_t offered_t2_rebind; /* recommended rebind time (usually 87.5 of lease period) */ -#if LWIP_DHCP_BOOTP_FILE - ip4_addr_t offered_si_addr; - char boot_file_name[DHCP_BOOT_FILE_LEN]; -#endif /* LWIP_DHCP_BOOTPFILE */ -}; - - -void dhcp_set_struct(struct netif *netif, struct dhcp *dhcp); -/** Remove a struct dhcp previously set to the netif using dhcp_set_struct() */ -#define dhcp_remove_struct(netif) netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, NULL) -void dhcp_cleanup(struct netif *netif); -err_t dhcp_start(struct netif *netif); -err_t dhcp_renew(struct netif *netif); -err_t dhcp_release(struct netif *netif); -void dhcp_stop(struct netif *netif); -void dhcp_release_and_stop(struct netif *netif); -void dhcp_inform(struct netif *netif); -void dhcp_network_changed(struct netif *netif); -#if DHCP_DOES_ARP_CHECK -void dhcp_arp_reply(struct netif *netif, const ip4_addr_t *addr); -#endif -u8_t dhcp_supplied_address(const struct netif *netif); -/* to be called every minute */ -void dhcp_coarse_tmr(void); -/* to be called every half second */ -void dhcp_fine_tmr(void); - -#if LWIP_DHCP_GET_NTP_SRV -/** This function must exist, in other to add offered NTP servers to - * the NTP (or SNTP) engine. - * See LWIP_DHCP_MAX_NTP_SERVERS */ -extern void dhcp_set_ntp_servers(u8_t num_ntp_servers, const ip4_addr_t* ntp_server_addrs); -#endif /* LWIP_DHCP_GET_NTP_SRV */ - -#define netif_dhcp_data(netif) ((struct dhcp*)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP)) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_DHCP */ - -#endif /*LWIP_HDR_DHCP_H*/ diff --git a/core/c/include/lwip/dhcp6.h b/core/c/include/lwip/dhcp6.h deleted file mode 100755 index 61ca4c4..0000000 --- a/core/c/include/lwip/dhcp6.h +++ /dev/null @@ -1,104 +0,0 @@ -/** - * @file - * - * DHCPv6 client: IPv6 address autoconfiguration as per - * RFC 3315 (stateful DHCPv6) and - * RFC 3736 (stateless DHCPv6). - */ - -/* - * Copyright (c) 2018 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - */ - -#ifndef LWIP_HDR_IP6_DHCP6_H -#define LWIP_HDR_IP6_DHCP6_H - -#include "lwip/opt.h" - -#if LWIP_IPV6_DHCP6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/err.h" -#include "lwip/netif.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** period (in milliseconds) of the application calling dhcp6_tmr() */ -#define DHCP6_TIMER_MSECS 500 - -struct dhcp6 -{ - /** transaction identifier of last sent request */ - u32_t xid; - /** track PCB allocation state */ - u8_t pcb_allocated; - /** current DHCPv6 state machine state */ - u8_t state; - /** retries of current request */ - u8_t tries; - /** if request config is triggered while another action is active, this keeps track of it */ - u8_t request_config_pending; - /** #ticks with period DHCP6_TIMER_MSECS for request timeout */ - u16_t request_timeout; -#if LWIP_IPV6_DHCP6_STATEFUL - /* @todo: add more members here to keep track of stateful DHCPv6 data, like lease times */ -#endif /* LWIP_IPV6_DHCP6_STATEFUL */ -}; - -void dhcp6_set_struct(struct netif *netif, struct dhcp6 *dhcp6); -/** Remove a struct dhcp6 previously set to the netif using dhcp6_set_struct() */ -#define dhcp6_remove_struct(netif) netif_set_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, NULL) -void dhcp6_cleanup(struct netif *netif); - -err_t dhcp6_enable_stateful(struct netif *netif); -err_t dhcp6_enable_stateless(struct netif *netif); -void dhcp6_disable(struct netif *netif); - -void dhcp6_tmr(void); - -void dhcp6_nd6_ra_trigger(struct netif *netif, u8_t managed_addr_config, u8_t other_config); - -#if LWIP_DHCP6_GET_NTP_SRV -/** This function must exist, in other to add offered NTP servers to - * the NTP (or SNTP) engine. - * See LWIP_DHCP6_MAX_NTP_SERVERS */ -extern void dhcp6_set_ntp_servers(u8_t num_ntp_servers, const ip_addr_t* ntp_server_addrs); -#endif /* LWIP_DHCP6_GET_NTP_SRV */ - -#define netif_dhcp6_data(netif) ((struct dhcp6*)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6)) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6_DHCP6 */ - -#endif /* LWIP_HDR_IP6_DHCP6_H */ diff --git a/core/c/include/lwip/dns.h b/core/c/include/lwip/dns.h deleted file mode 100755 index eed6825..0000000 --- a/core/c/include/lwip/dns.h +++ /dev/null @@ -1,131 +0,0 @@ -/** - * @file - * DNS API - */ - -/** - * lwip DNS resolver header file. - - * Author: Jim Pettinato - * April 2007 - - * ported from uIP resolv.c Copyright (c) 2002-2003, Adam Dunkels. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote - * products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS - * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE - * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef LWIP_HDR_DNS_H -#define LWIP_HDR_DNS_H - -#include "lwip/opt.h" - -#if LWIP_DNS - -#include "lwip/ip_addr.h" -#include "lwip/err.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** DNS timer period */ -#define DNS_TMR_INTERVAL 1000 - -/* DNS resolve types: */ -#define LWIP_DNS_ADDRTYPE_IPV4 0 -#define LWIP_DNS_ADDRTYPE_IPV6 1 -#define LWIP_DNS_ADDRTYPE_IPV4_IPV6 2 /* try to resolve IPv4 first, try IPv6 if IPv4 fails only */ -#define LWIP_DNS_ADDRTYPE_IPV6_IPV4 3 /* try to resolve IPv6 first, try IPv4 if IPv6 fails only */ -#if LWIP_IPV4 && LWIP_IPV6 -#ifndef LWIP_DNS_ADDRTYPE_DEFAULT -#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV4_IPV6 -#endif -#elif LWIP_IPV4 -#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV4 -#else -#define LWIP_DNS_ADDRTYPE_DEFAULT LWIP_DNS_ADDRTYPE_IPV6 -#endif - -#if DNS_LOCAL_HOSTLIST -/** struct used for local host-list */ -struct local_hostlist_entry { - /** static hostname */ - const char *name; - /** static host address in network byteorder */ - ip_addr_t addr; - struct local_hostlist_entry *next; -}; -#define DNS_LOCAL_HOSTLIST_ELEM(name, addr_init) {name, addr_init, NULL} -#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC -#ifndef DNS_LOCAL_HOSTLIST_MAX_NAMELEN -#define DNS_LOCAL_HOSTLIST_MAX_NAMELEN DNS_MAX_NAME_LENGTH -#endif -#define LOCALHOSTLIST_ELEM_SIZE ((sizeof(struct local_hostlist_entry) + DNS_LOCAL_HOSTLIST_MAX_NAMELEN + 1)) -#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ -#endif /* DNS_LOCAL_HOSTLIST */ - -#if LWIP_IPV4 -extern const ip_addr_t dns_mquery_v4group; -#endif /* LWIP_IPV4 */ -#if LWIP_IPV6 -extern const ip_addr_t dns_mquery_v6group; -#endif /* LWIP_IPV6 */ - -/** Callback which is invoked when a hostname is found. - * A function of this type must be implemented by the application using the DNS resolver. - * @param name pointer to the name that was looked up. - * @param ipaddr pointer to an ip_addr_t containing the IP address of the hostname, - * or NULL if the name could not be found (or on any other error). - * @param callback_arg a user-specified callback argument passed to dns_gethostbyname -*/ -typedef void (*dns_found_callback)(const char *name, const ip_addr_t *ipaddr, void *callback_arg); - -void dns_init(void); -void dns_tmr(void); -void dns_setserver(u8_t numdns, const ip_addr_t *dnsserver); -const ip_addr_t* dns_getserver(u8_t numdns); -err_t dns_gethostbyname(const char *hostname, ip_addr_t *addr, - dns_found_callback found, void *callback_arg); -err_t dns_gethostbyname_addrtype(const char *hostname, ip_addr_t *addr, - dns_found_callback found, void *callback_arg, - u8_t dns_addrtype); - - -#if DNS_LOCAL_HOSTLIST -size_t dns_local_iterate(dns_found_callback iterator_fn, void *iterator_arg); -err_t dns_local_lookup(const char *hostname, ip_addr_t *addr, u8_t dns_addrtype); -#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC -int dns_local_removehost(const char *hostname, const ip_addr_t *addr); -err_t dns_local_addhost(const char *hostname, const ip_addr_t *addr); -#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ -#endif /* DNS_LOCAL_HOSTLIST */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_DNS */ - -#endif /* LWIP_HDR_DNS_H */ diff --git a/core/c/include/lwip/err.h b/core/c/include/lwip/err.h deleted file mode 100755 index 63c138a..0000000 --- a/core/c/include/lwip/err.h +++ /dev/null @@ -1,117 +0,0 @@ -/** - * @file - * lwIP Error codes - */ -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_ERR_H -#define LWIP_HDR_ERR_H - -#include "lwip/opt.h" -#include "lwip/arch.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * @defgroup infrastructure_errors Error codes - * @ingroup infrastructure - * @{ - */ - -/** Definitions for error constants. */ -typedef enum { -/** No error, everything OK. */ - ERR_OK = 0, -/** Out of memory error. */ - ERR_MEM = -1, -/** Buffer error. */ - ERR_BUF = -2, -/** Timeout. */ - ERR_TIMEOUT = -3, -/** Routing problem. */ - ERR_RTE = -4, -/** Operation in progress */ - ERR_INPROGRESS = -5, -/** Illegal value. */ - ERR_VAL = -6, -/** Operation would block. */ - ERR_WOULDBLOCK = -7, -/** Address in use. */ - ERR_USE = -8, -/** Already connecting. */ - ERR_ALREADY = -9, -/** Conn already established.*/ - ERR_ISCONN = -10, -/** Not connected. */ - ERR_CONN = -11, -/** Low-level netif error */ - ERR_IF = -12, - -/** Connection aborted. */ - ERR_ABRT = -13, -/** Connection reset. */ - ERR_RST = -14, -/** Connection closed. */ - ERR_CLSD = -15, -/** Illegal argument. */ - ERR_ARG = -16 -} err_enum_t; - -/** Define LWIP_ERR_T in cc.h if you want to use - * a different type for your platform (must be signed). */ -#ifdef LWIP_ERR_T -typedef LWIP_ERR_T err_t; -#else /* LWIP_ERR_T */ -typedef s8_t err_t; -#endif /* LWIP_ERR_T*/ - -/** - * @} - */ - -#ifdef LWIP_DEBUG -extern const char *lwip_strerr(err_t err); -#else -#define lwip_strerr(x) "" -#endif /* LWIP_DEBUG */ - -#if !NO_SYS -int err_to_errno(err_t err); -#endif /* !NO_SYS */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_ERR_H */ diff --git a/core/c/include/lwip/errno.h b/core/c/include/lwip/errno.h deleted file mode 100755 index eae5d6e..0000000 --- a/core/c/include/lwip/errno.h +++ /dev/null @@ -1,198 +0,0 @@ -/** - * @file - * Posix Errno defines - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_ERRNO_H -#define LWIP_HDR_ERRNO_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#ifdef LWIP_PROVIDE_ERRNO - -#define EPERM 1 /* Operation not permitted */ -#define ENOENT 2 /* No such file or directory */ -#define ESRCH 3 /* No such process */ -#define EINTR 4 /* Interrupted system call */ -#define EIO 5 /* I/O error */ -#define ENXIO 6 /* No such device or address */ -#define E2BIG 7 /* Arg list too long */ -#define ENOEXEC 8 /* Exec format error */ -#define EBADF 9 /* Bad file number */ -#define ECHILD 10 /* No child processes */ -#define EAGAIN 11 /* Try again */ -#define ENOMEM 12 /* Out of memory */ -#define EACCES 13 /* Permission denied */ -#define EFAULT 14 /* Bad address */ -#define ENOTBLK 15 /* Block device required */ -#define EBUSY 16 /* Device or resource busy */ -#define EEXIST 17 /* File exists */ -#define EXDEV 18 /* Cross-device link */ -#define ENODEV 19 /* No such device */ -#define ENOTDIR 20 /* Not a directory */ -#define EISDIR 21 /* Is a directory */ -#define EINVAL 22 /* Invalid argument */ -#define ENFILE 23 /* File table overflow */ -#define EMFILE 24 /* Too many open files */ -#define ENOTTY 25 /* Not a typewriter */ -#define ETXTBSY 26 /* Text file busy */ -#define EFBIG 27 /* File too large */ -#define ENOSPC 28 /* No space left on device */ -#define ESPIPE 29 /* Illegal seek */ -#define EROFS 30 /* Read-only file system */ -#define EMLINK 31 /* Too many links */ -#define EPIPE 32 /* Broken pipe */ -#define EDOM 33 /* Math argument out of domain of func */ -#define ERANGE 34 /* Math result not representable */ -#define EDEADLK 35 /* Resource deadlock would occur */ -#define ENAMETOOLONG 36 /* File name too long */ -#define ENOLCK 37 /* No record locks available */ -#define ENOSYS 38 /* Function not implemented */ -#define ENOTEMPTY 39 /* Directory not empty */ -#define ELOOP 40 /* Too many symbolic links encountered */ -#define EWOULDBLOCK EAGAIN /* Operation would block */ -#define ENOMSG 42 /* No message of desired type */ -#define EIDRM 43 /* Identifier removed */ -#define ECHRNG 44 /* Channel number out of range */ -#define EL2NSYNC 45 /* Level 2 not synchronized */ -#define EL3HLT 46 /* Level 3 halted */ -#define EL3RST 47 /* Level 3 reset */ -#define ELNRNG 48 /* Link number out of range */ -#define EUNATCH 49 /* Protocol driver not attached */ -#define ENOCSI 50 /* No CSI structure available */ -#define EL2HLT 51 /* Level 2 halted */ -#define EBADE 52 /* Invalid exchange */ -#define EBADR 53 /* Invalid request descriptor */ -#define EXFULL 54 /* Exchange full */ -#define ENOANO 55 /* No anode */ -#define EBADRQC 56 /* Invalid request code */ -#define EBADSLT 57 /* Invalid slot */ - -#define EDEADLOCK EDEADLK - -#define EBFONT 59 /* Bad font file format */ -#define ENOSTR 60 /* Device not a stream */ -#define ENODATA 61 /* No data available */ -#define ETIME 62 /* Timer expired */ -#define ENOSR 63 /* Out of streams resources */ -#define ENONET 64 /* Machine is not on the network */ -#define ENOPKG 65 /* Package not installed */ -#define EREMOTE 66 /* Object is remote */ -#define ENOLINK 67 /* Link has been severed */ -#define EADV 68 /* Advertise error */ -#define ESRMNT 69 /* Srmount error */ -#define ECOMM 70 /* Communication error on send */ -#define EPROTO 71 /* Protocol error */ -#define EMULTIHOP 72 /* Multihop attempted */ -#define EDOTDOT 73 /* RFS specific error */ -#define EBADMSG 74 /* Not a data message */ -#define EOVERFLOW 75 /* Value too large for defined data type */ -#define ENOTUNIQ 76 /* Name not unique on network */ -#define EBADFD 77 /* File descriptor in bad state */ -#define EREMCHG 78 /* Remote address changed */ -#define ELIBACC 79 /* Can not access a needed shared library */ -#define ELIBBAD 80 /* Accessing a corrupted shared library */ -#define ELIBSCN 81 /* .lib section in a.out corrupted */ -#define ELIBMAX 82 /* Attempting to link in too many shared libraries */ -#define ELIBEXEC 83 /* Cannot exec a shared library directly */ -#define EILSEQ 84 /* Illegal byte sequence */ -#define ERESTART 85 /* Interrupted system call should be restarted */ -#define ESTRPIPE 86 /* Streams pipe error */ -#define EUSERS 87 /* Too many users */ -#define ENOTSOCK 88 /* Socket operation on non-socket */ -#define EDESTADDRREQ 89 /* Destination address required */ -#define EMSGSIZE 90 /* Message too long */ -#define EPROTOTYPE 91 /* Protocol wrong type for socket */ -#define ENOPROTOOPT 92 /* Protocol not available */ -#define EPROTONOSUPPORT 93 /* Protocol not supported */ -#define ESOCKTNOSUPPORT 94 /* Socket type not supported */ -#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */ -#define EPFNOSUPPORT 96 /* Protocol family not supported */ -#define EAFNOSUPPORT 97 /* Address family not supported by protocol */ -#define EADDRINUSE 98 /* Address already in use */ -#define EADDRNOTAVAIL 99 /* Cannot assign requested address */ -#define ENETDOWN 100 /* Network is down */ -#define ENETUNREACH 101 /* Network is unreachable */ -#define ENETRESET 102 /* Network dropped connection because of reset */ -#define ECONNABORTED 103 /* Software caused connection abort */ -#define ECONNRESET 104 /* Connection reset by peer */ -#define ENOBUFS 105 /* No buffer space available */ -#define EISCONN 106 /* Transport endpoint is already connected */ -#define ENOTCONN 107 /* Transport endpoint is not connected */ -#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */ -#define ETOOMANYREFS 109 /* Too many references: cannot splice */ -#define ETIMEDOUT 110 /* Connection timed out */ -#define ECONNREFUSED 111 /* Connection refused */ -#define EHOSTDOWN 112 /* Host is down */ -#define EHOSTUNREACH 113 /* No route to host */ -#define EALREADY 114 /* Operation already in progress */ -#define EINPROGRESS 115 /* Operation now in progress */ -#define ESTALE 116 /* Stale NFS file handle */ -#define EUCLEAN 117 /* Structure needs cleaning */ -#define ENOTNAM 118 /* Not a XENIX named type file */ -#define ENAVAIL 119 /* No XENIX semaphores available */ -#define EISNAM 120 /* Is a named type file */ -#define EREMOTEIO 121 /* Remote I/O error */ -#define EDQUOT 122 /* Quota exceeded */ - -#define ENOMEDIUM 123 /* No medium found */ -#define EMEDIUMTYPE 124 /* Wrong medium type */ - -#ifndef errno -extern int errno; -#endif - -#else /* LWIP_PROVIDE_ERRNO */ - -/* Define LWIP_ERRNO_STDINCLUDE if you want to include here */ -#ifdef LWIP_ERRNO_STDINCLUDE -#include -#else /* LWIP_ERRNO_STDINCLUDE */ -/* Define LWIP_ERRNO_INCLUDE to an equivalent of to include the error defines here */ -#ifdef LWIP_ERRNO_INCLUDE -#include LWIP_ERRNO_INCLUDE -#endif /* LWIP_ERRNO_INCLUDE */ -#endif /* LWIP_ERRNO_STDINCLUDE */ - -#endif /* LWIP_PROVIDE_ERRNO */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_ERRNO_H */ diff --git a/core/c/include/lwip/etharp.h b/core/c/include/lwip/etharp.h deleted file mode 100755 index b018f07..0000000 --- a/core/c/include/lwip/etharp.h +++ /dev/null @@ -1,105 +0,0 @@ -/** - * @file - * Ethernet output function - handles OUTGOING ethernet level traffic, implements - * ARP resolving. - * To be used in most low-level netif implementations - */ - -/* - * Copyright (c) 2001-2003 Swedish Institute of Computer Science. - * Copyright (c) 2003-2004 Leon Woestenberg - * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#ifndef LWIP_HDR_NETIF_ETHARP_H -#define LWIP_HDR_NETIF_ETHARP_H - -#include "lwip/opt.h" - -#if LWIP_ARP || LWIP_ETHERNET /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/pbuf.h" -#include "lwip/ip4_addr.h" -#include "lwip/netif.h" -#include "lwip/ip4.h" -#include "lwip/prot/ethernet.h" - -#if LWIP_IPV4 && LWIP_ARP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/prot/etharp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** 1 seconds period */ -#define ARP_TMR_INTERVAL 1000 - -#if ARP_QUEUEING -/** struct for queueing outgoing packets for unknown address - * defined here to be accessed by memp.h - */ -struct etharp_q_entry { - struct etharp_q_entry *next; - struct pbuf *p; -}; -#endif /* ARP_QUEUEING */ - -#define etharp_init() /* Compatibility define, no init needed. */ -void etharp_tmr(void); -ssize_t etharp_find_addr(struct netif *netif, const ip4_addr_t *ipaddr, - struct eth_addr **eth_ret, const ip4_addr_t **ip_ret); -int etharp_get_entry(size_t i, ip4_addr_t **ipaddr, struct netif **netif, struct eth_addr **eth_ret); -err_t etharp_output(struct netif *netif, struct pbuf *q, const ip4_addr_t *ipaddr); -err_t etharp_query(struct netif *netif, const ip4_addr_t *ipaddr, struct pbuf *q); -err_t etharp_request(struct netif *netif, const ip4_addr_t *ipaddr); -/** For Ethernet network interfaces, we might want to send "gratuitous ARP"; - * this is an ARP packet sent by a node in order to spontaneously cause other - * nodes to update an entry in their ARP cache. - * From RFC 3220 "IP Mobility Support for IPv4" section 4.6. */ -#define etharp_gratuitous(netif) etharp_request((netif), netif_ip4_addr(netif)) -void etharp_cleanup_netif(struct netif *netif); - -#if ETHARP_SUPPORT_STATIC_ENTRIES -err_t etharp_add_static_entry(const ip4_addr_t *ipaddr, struct eth_addr *ethaddr); -err_t etharp_remove_static_entry(const ip4_addr_t *ipaddr); -#endif /* ETHARP_SUPPORT_STATIC_ENTRIES */ - -void etharp_input(struct pbuf *p, struct netif *netif); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV4 && LWIP_ARP */ -#endif /* LWIP_ARP || LWIP_ETHERNET */ - -#endif /* LWIP_HDR_NETIF_ETHARP_H */ diff --git a/core/c/include/lwip/ethip6.h b/core/c/include/lwip/ethip6.h deleted file mode 100755 index f393c9c..0000000 --- a/core/c/include/lwip/ethip6.h +++ /dev/null @@ -1,68 +0,0 @@ -/** - * @file - * - * Ethernet output for IPv6. Uses ND tables for link-layer addressing. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#ifndef LWIP_HDR_ETHIP6_H -#define LWIP_HDR_ETHIP6_H - -#include "lwip/opt.h" - -#if LWIP_IPV6 && LWIP_ETHERNET /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/pbuf.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#include "lwip/netif.h" - - -#ifdef __cplusplus -extern "C" { -#endif - - -err_t ethip6_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6 && LWIP_ETHERNET */ - -#endif /* LWIP_HDR_ETHIP6_H */ diff --git a/core/c/include/lwip/icmp.h b/core/c/include/lwip/icmp.h deleted file mode 100755 index d0d67b6..0000000 --- a/core/c/include/lwip/icmp.h +++ /dev/null @@ -1,110 +0,0 @@ -/** - * @file - * ICMP API - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_ICMP_H -#define LWIP_HDR_ICMP_H - -#include "lwip/opt.h" -#include "lwip/pbuf.h" -#include "lwip/ip_addr.h" -#include "lwip/netif.h" -#include "lwip/prot/icmp.h" - -#if LWIP_IPV6 && LWIP_ICMP6 -#include "lwip/icmp6.h" -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -/** ICMP destination unreachable codes */ -enum icmp_dur_type { - /** net unreachable */ - ICMP_DUR_NET = 0, - /** host unreachable */ - ICMP_DUR_HOST = 1, - /** protocol unreachable */ - ICMP_DUR_PROTO = 2, - /** port unreachable */ - ICMP_DUR_PORT = 3, - /** fragmentation needed and DF set */ - ICMP_DUR_FRAG = 4, - /** source route failed */ - ICMP_DUR_SR = 5 -}; - -/** ICMP time exceeded codes */ -enum icmp_te_type { - /** time to live exceeded in transit */ - ICMP_TE_TTL = 0, - /** fragment reassembly time exceeded */ - ICMP_TE_FRAG = 1 -}; - -#if LWIP_IPV4 && LWIP_ICMP /* don't build if not configured for use in lwipopts.h */ - -void icmp_input(struct pbuf *p, struct netif *inp); -void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t); -void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t); - -#endif /* LWIP_IPV4 && LWIP_ICMP */ - -#if LWIP_IPV4 && LWIP_IPV6 -#if LWIP_ICMP && LWIP_ICMP6 -#define icmp_port_unreach(isipv6, pbuf) ((isipv6) ? \ - icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT) : \ - icmp_dest_unreach(pbuf, ICMP_DUR_PORT)) -#elif LWIP_ICMP -#define icmp_port_unreach(isipv6, pbuf) do{ if(!(isipv6)) { icmp_dest_unreach(pbuf, ICMP_DUR_PORT);}}while(0) -#elif LWIP_ICMP6 -#define icmp_port_unreach(isipv6, pbuf) do{ if(isipv6) { icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT);}}while(0) -#else -#define icmp_port_unreach(isipv6, pbuf) -#endif -#elif LWIP_IPV6 && LWIP_ICMP6 -#define icmp_port_unreach(isipv6, pbuf) icmp6_dest_unreach(pbuf, ICMP6_DUR_PORT) -#elif LWIP_IPV4 && LWIP_ICMP -#define icmp_port_unreach(isipv6, pbuf) icmp_dest_unreach(pbuf, ICMP_DUR_PORT) -#else /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) */ -#define icmp_port_unreach(isipv6, pbuf) -#endif /* (LWIP_IPV6 && LWIP_ICMP6) || (LWIP_IPV4 && LWIP_ICMP) LWIP_IPV4*/ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_ICMP_H */ diff --git a/core/c/include/lwip/icmp6.h b/core/c/include/lwip/icmp6.h deleted file mode 100755 index cb383d9..0000000 --- a/core/c/include/lwip/icmp6.h +++ /dev/null @@ -1,72 +0,0 @@ -/** - * @file - * - * IPv6 version of ICMP, as per RFC 4443. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ -#ifndef LWIP_HDR_ICMP6_H -#define LWIP_HDR_ICMP6_H - -#include "lwip/opt.h" -#include "lwip/pbuf.h" -#include "lwip/ip6_addr.h" -#include "lwip/netif.h" -#include "lwip/prot/icmp6.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_ICMP6 && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -void icmp6_input(struct pbuf *p, struct netif *inp); -void icmp6_dest_unreach(struct pbuf *p, enum icmp6_dur_code c); -void icmp6_packet_too_big(struct pbuf *p, u32_t mtu); -void icmp6_time_exceeded(struct pbuf *p, enum icmp6_te_code c); -void icmp6_time_exceeded_with_addrs(struct pbuf *p, enum icmp6_te_code c, - const ip6_addr_t *src_addr, const ip6_addr_t *dest_addr); -void icmp6_param_problem(struct pbuf *p, enum icmp6_pp_code c, const void *pointer); - -#endif /* LWIP_ICMP6 && LWIP_IPV6 */ - - -#ifdef __cplusplus -} -#endif - - -#endif /* LWIP_HDR_ICMP6_H */ diff --git a/core/c/include/lwip/if_api.h b/core/c/include/lwip/if_api.h deleted file mode 100755 index d8261f7..0000000 --- a/core/c/include/lwip/if_api.h +++ /dev/null @@ -1,68 +0,0 @@ -/** - * @file - * Interface Identification APIs from: - * RFC 3493: Basic Socket Interface Extensions for IPv6 - * Section 4: Interface Identification - */ - -/* - * Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Joel Cunningham - * - */ -#ifndef LWIP_HDR_IF_H -#define LWIP_HDR_IF_H - -#include "lwip/opt.h" - -#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/netif.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define IF_NAMESIZE NETIF_NAMESIZE - -char * lwip_if_indextoname(unsigned int ifindex, char *ifname); -unsigned int lwip_if_nametoindex(const char *ifname); - -#if LWIP_COMPAT_SOCKETS -#define if_indextoname(ifindex, ifname) lwip_if_indextoname(ifindex,ifname) -#define if_nametoindex(ifname) lwip_if_nametoindex(ifname) -#endif /* LWIP_COMPAT_SOCKETS */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_SOCKET */ - -#endif /* LWIP_HDR_IF_H */ diff --git a/core/c/include/lwip/igmp.h b/core/c/include/lwip/igmp.h deleted file mode 100755 index ca52a2d..0000000 --- a/core/c/include/lwip/igmp.h +++ /dev/null @@ -1,115 +0,0 @@ -/** - * @file - * IGMP API - */ - -/* - * Copyright (c) 2002 CITEL Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file is a contribution to the lwIP TCP/IP stack. - * The Swedish Institute of Computer Science and Adam Dunkels - * are specifically granted permission to redistribute this - * source code. -*/ - -#ifndef LWIP_HDR_IGMP_H -#define LWIP_HDR_IGMP_H - -#include "lwip/opt.h" -#include "lwip/ip_addr.h" -#include "lwip/netif.h" -#include "lwip/pbuf.h" - -#if LWIP_IPV4 && LWIP_IGMP /* don't build if not configured for use in lwipopts.h */ - -#ifdef __cplusplus -extern "C" { -#endif - -/* IGMP timer */ -#define IGMP_TMR_INTERVAL 100 /* Milliseconds */ -#define IGMP_V1_DELAYING_MEMBER_TMR (1000/IGMP_TMR_INTERVAL) -#define IGMP_JOIN_DELAYING_MEMBER_TMR (500 /IGMP_TMR_INTERVAL) - -/* Compatibility defines (don't use for new code) */ -#define IGMP_DEL_MAC_FILTER NETIF_DEL_MAC_FILTER -#define IGMP_ADD_MAC_FILTER NETIF_ADD_MAC_FILTER - -/** - * igmp group structure - there is - * a list of groups for each interface - * these should really be linked from the interface, but - * if we keep them separate we will not affect the lwip original code - * too much - * - * There will be a group for the all systems group address but this - * will not run the state machine as it is used to kick off reports - * from all the other groups - */ -struct igmp_group { - /** next link */ - struct igmp_group *next; - /** multicast address */ - ip4_addr_t group_address; - /** signifies we were the last person to report */ - u8_t last_reporter_flag; - /** current state of the group */ - u8_t group_state; - /** timer for reporting, negative is OFF */ - u16_t timer; - /** counter of simultaneous uses */ - u8_t use; -}; - -/* Prototypes */ -void igmp_init(void); -err_t igmp_start(struct netif *netif); -err_t igmp_stop(struct netif *netif); -void igmp_report_groups(struct netif *netif); -struct igmp_group *igmp_lookfor_group(struct netif *ifp, const ip4_addr_t *addr); -void igmp_input(struct pbuf *p, struct netif *inp, const ip4_addr_t *dest); -err_t igmp_joingroup(const ip4_addr_t *ifaddr, const ip4_addr_t *groupaddr); -err_t igmp_joingroup_netif(struct netif *netif, const ip4_addr_t *groupaddr); -err_t igmp_leavegroup(const ip4_addr_t *ifaddr, const ip4_addr_t *groupaddr); -err_t igmp_leavegroup_netif(struct netif *netif, const ip4_addr_t *groupaddr); -void igmp_tmr(void); - -/** @ingroup igmp - * Get list head of IGMP groups for netif. - * Note: The allsystems group IP is contained in the list as first entry. - * @see @ref netif_set_igmp_mac_filter() - */ -#define netif_igmp_data(netif) ((struct igmp_group *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_IGMP)) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV4 && LWIP_IGMP */ - -#endif /* LWIP_HDR_IGMP_H */ diff --git a/core/c/include/lwip/inet.h b/core/c/include/lwip/inet.h deleted file mode 100755 index 36f6ec7..0000000 --- a/core/c/include/lwip/inet.h +++ /dev/null @@ -1,169 +0,0 @@ -/** - * @file - * This file (together with sockets.h) aims to provide structs and functions from - * - arpa/inet.h - * - netinet/in.h - * - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_INET_H -#define LWIP_HDR_INET_H - -#include "lwip/opt.h" -#include "lwip/def.h" -#include "lwip/ip_addr.h" -#include "lwip/ip6_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* If your port already typedef's in_addr_t, define IN_ADDR_T_DEFINED - to prevent this code from redefining it. */ -#if !defined(in_addr_t) && !defined(IN_ADDR_T_DEFINED) -typedef u32_t in_addr_t; -#endif - -struct in_addr { - in_addr_t s_addr; -}; - -struct in6_addr { - union { - u32_t u32_addr[4]; - u8_t u8_addr[16]; - } un; -#define s6_addr un.u8_addr -}; - -/** 255.255.255.255 */ -#define INADDR_NONE IPADDR_NONE -/** 127.0.0.1 */ -#define INADDR_LOOPBACK IPADDR_LOOPBACK -/** 0.0.0.0 */ -#define INADDR_ANY IPADDR_ANY -/** 255.255.255.255 */ -#define INADDR_BROADCAST IPADDR_BROADCAST - -/** This macro can be used to initialize a variable of type struct in6_addr - to the IPv6 wildcard address. */ -#define IN6ADDR_ANY_INIT {{{0,0,0,0}}} -/** This macro can be used to initialize a variable of type struct in6_addr - to the IPv6 loopback address. */ -#define IN6ADDR_LOOPBACK_INIT {{{0,0,0,PP_HTONL(1)}}} -/** This variable is initialized by the system to contain the wildcard IPv6 address. */ -extern const struct in6_addr in6addr_any; - -/* Definitions of the bits in an (IPv4) Internet address integer. - - On subnets, host and network parts are found according to - the subnet mask, not these masks. */ -#define IN_CLASSA(a) IP_CLASSA(a) -#define IN_CLASSA_NET IP_CLASSA_NET -#define IN_CLASSA_NSHIFT IP_CLASSA_NSHIFT -#define IN_CLASSA_HOST IP_CLASSA_HOST -#define IN_CLASSA_MAX IP_CLASSA_MAX - -#define IN_CLASSB(b) IP_CLASSB(b) -#define IN_CLASSB_NET IP_CLASSB_NET -#define IN_CLASSB_NSHIFT IP_CLASSB_NSHIFT -#define IN_CLASSB_HOST IP_CLASSB_HOST -#define IN_CLASSB_MAX IP_CLASSB_MAX - -#define IN_CLASSC(c) IP_CLASSC(c) -#define IN_CLASSC_NET IP_CLASSC_NET -#define IN_CLASSC_NSHIFT IP_CLASSC_NSHIFT -#define IN_CLASSC_HOST IP_CLASSC_HOST -#define IN_CLASSC_MAX IP_CLASSC_MAX - -#define IN_CLASSD(d) IP_CLASSD(d) -#define IN_CLASSD_NET IP_CLASSD_NET /* These ones aren't really */ -#define IN_CLASSD_NSHIFT IP_CLASSD_NSHIFT /* net and host fields, but */ -#define IN_CLASSD_HOST IP_CLASSD_HOST /* routing needn't know. */ -#define IN_CLASSD_MAX IP_CLASSD_MAX - -#define IN_MULTICAST(a) IP_MULTICAST(a) - -#define IN_EXPERIMENTAL(a) IP_EXPERIMENTAL(a) -#define IN_BADCLASS(a) IP_BADCLASS(a) - -#define IN_LOOPBACKNET IP_LOOPBACKNET - - -#ifndef INET_ADDRSTRLEN -#define INET_ADDRSTRLEN IP4ADDR_STRLEN_MAX -#endif -#if LWIP_IPV6 -#ifndef INET6_ADDRSTRLEN -#define INET6_ADDRSTRLEN IP6ADDR_STRLEN_MAX -#endif -#endif - -#if LWIP_IPV4 - -#define inet_addr_from_ip4addr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr)) -#define inet_addr_to_ip4addr(target_ipaddr, source_inaddr) (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr)) - -/* directly map this to the lwip internal functions */ -#define inet_addr(cp) ipaddr_addr(cp) -#define inet_aton(cp, addr) ip4addr_aton(cp, (ip4_addr_t*)addr) -#define inet_ntoa(addr) ip4addr_ntoa((const ip4_addr_t*)&(addr)) -#define inet_ntoa_r(addr, buf, buflen) ip4addr_ntoa_r((const ip4_addr_t*)&(addr), buf, buflen) - -#endif /* LWIP_IPV4 */ - -#if LWIP_IPV6 -#define inet6_addr_from_ip6addr(target_in6addr, source_ip6addr) {(target_in6addr)->un.u32_addr[0] = (source_ip6addr)->addr[0]; \ - (target_in6addr)->un.u32_addr[1] = (source_ip6addr)->addr[1]; \ - (target_in6addr)->un.u32_addr[2] = (source_ip6addr)->addr[2]; \ - (target_in6addr)->un.u32_addr[3] = (source_ip6addr)->addr[3];} -#define inet6_addr_to_ip6addr(target_ip6addr, source_in6addr) {(target_ip6addr)->addr[0] = (source_in6addr)->un.u32_addr[0]; \ - (target_ip6addr)->addr[1] = (source_in6addr)->un.u32_addr[1]; \ - (target_ip6addr)->addr[2] = (source_in6addr)->un.u32_addr[2]; \ - (target_ip6addr)->addr[3] = (source_in6addr)->un.u32_addr[3]; \ - ip6_addr_clear_zone(target_ip6addr);} - -/* directly map this to the lwip internal functions */ -#define inet6_aton(cp, addr) ip6addr_aton(cp, (ip6_addr_t*)addr) -#define inet6_ntoa(addr) ip6addr_ntoa((const ip6_addr_t*)&(addr)) -#define inet6_ntoa_r(addr, buf, buflen) ip6addr_ntoa_r((const ip6_addr_t*)&(addr), buf, buflen) - -#endif /* LWIP_IPV6 */ - - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_INET_H */ diff --git a/core/c/include/lwip/inet_chksum.h b/core/c/include/lwip/inet_chksum.h deleted file mode 100755 index 46ec2ae..0000000 --- a/core/c/include/lwip/inet_chksum.h +++ /dev/null @@ -1,105 +0,0 @@ -/** - * @file - * IP checksum calculation functions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_INET_CHKSUM_H -#define LWIP_HDR_INET_CHKSUM_H - -#include "lwip/opt.h" - -#include "lwip/pbuf.h" -#include "lwip/ip_addr.h" - -/** Swap the bytes in an u16_t: much like lwip_htons() for little-endian */ -#ifndef SWAP_BYTES_IN_WORD -#define SWAP_BYTES_IN_WORD(w) (((w) & 0xff) << 8) | (((w) & 0xff00) >> 8) -#endif /* SWAP_BYTES_IN_WORD */ - -/** Split an u32_t in two u16_ts and add them up */ -#ifndef FOLD_U32T -#define FOLD_U32T(u) ((u32_t)(((u) >> 16) + ((u) & 0x0000ffffUL))) -#endif - -#if LWIP_CHECKSUM_ON_COPY -/** Function-like macro: same as MEMCPY but returns the checksum of copied data - as u16_t */ -# ifndef LWIP_CHKSUM_COPY -# define LWIP_CHKSUM_COPY(dst, src, len) lwip_chksum_copy(dst, src, len) -# ifndef LWIP_CHKSUM_COPY_ALGORITHM -# define LWIP_CHKSUM_COPY_ALGORITHM 1 -# endif /* LWIP_CHKSUM_COPY_ALGORITHM */ -# else /* LWIP_CHKSUM_COPY */ -# define LWIP_CHKSUM_COPY_ALGORITHM 0 -# endif /* LWIP_CHKSUM_COPY */ -#else /* LWIP_CHECKSUM_ON_COPY */ -# define LWIP_CHKSUM_COPY_ALGORITHM 0 -#endif /* LWIP_CHECKSUM_ON_COPY */ - -#ifdef __cplusplus -extern "C" { -#endif - -u16_t inet_chksum(const void *dataptr, u16_t len); -u16_t inet_chksum_pbuf(struct pbuf *p); -#if LWIP_CHKSUM_COPY_ALGORITHM -u16_t lwip_chksum_copy(void *dst, const void *src, u16_t len); -#endif /* LWIP_CHKSUM_COPY_ALGORITHM */ - -#if LWIP_IPV4 -u16_t inet_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, - const ip4_addr_t *src, const ip4_addr_t *dest); -u16_t inet_chksum_pseudo_partial(struct pbuf *p, u8_t proto, - u16_t proto_len, u16_t chksum_len, const ip4_addr_t *src, const ip4_addr_t *dest); -#endif /* LWIP_IPV4 */ - -#if LWIP_IPV6 -u16_t ip6_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, - const ip6_addr_t *src, const ip6_addr_t *dest); -u16_t ip6_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, - u16_t chksum_len, const ip6_addr_t *src, const ip6_addr_t *dest); -#endif /* LWIP_IPV6 */ - - -u16_t ip_chksum_pseudo(struct pbuf *p, u8_t proto, u16_t proto_len, - const ip_addr_t *src, const ip_addr_t *dest); -u16_t ip_chksum_pseudo_partial(struct pbuf *p, u8_t proto, u16_t proto_len, - u16_t chksum_len, const ip_addr_t *src, const ip_addr_t *dest); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_INET_H */ - diff --git a/core/c/include/lwip/init.h b/core/c/include/lwip/init.h deleted file mode 100755 index 48c256b..0000000 --- a/core/c/include/lwip/init.h +++ /dev/null @@ -1,100 +0,0 @@ -/** - * @file - * lwIP initialization API - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_INIT_H -#define LWIP_HDR_INIT_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * @defgroup lwip_version Version - * @ingroup lwip - * @{ - */ - -/** X.x.x: Major version of the stack */ -#define LWIP_VERSION_MAJOR 2 -/** x.X.x: Minor version of the stack */ -#define LWIP_VERSION_MINOR 1 -/** x.x.X: Revision of the stack */ -#define LWIP_VERSION_REVISION 2 -/** For release candidates, this is set to 1..254 - * For official releases, this is set to 255 (LWIP_RC_RELEASE) - * For development versions (Git), this is set to 0 (LWIP_RC_DEVELOPMENT) */ -#define LWIP_VERSION_RC LWIP_RC_RELEASE - -/** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */ -#define LWIP_RC_RELEASE 255 -/** LWIP_VERSION_RC is set to LWIP_RC_DEVELOPMENT for Git versions */ -#define LWIP_RC_DEVELOPMENT 0 - -#define LWIP_VERSION_IS_RELEASE (LWIP_VERSION_RC == LWIP_RC_RELEASE) -#define LWIP_VERSION_IS_DEVELOPMENT (LWIP_VERSION_RC == LWIP_RC_DEVELOPMENT) -#define LWIP_VERSION_IS_RC ((LWIP_VERSION_RC != LWIP_RC_RELEASE) && (LWIP_VERSION_RC != LWIP_RC_DEVELOPMENT)) - -/* Some helper defines to get a version string */ -#define LWIP_VERSTR2(x) #x -#define LWIP_VERSTR(x) LWIP_VERSTR2(x) -#if LWIP_VERSION_IS_RELEASE -#define LWIP_VERSION_STRING_SUFFIX "" -#elif LWIP_VERSION_IS_DEVELOPMENT -#define LWIP_VERSION_STRING_SUFFIX "d" -#else -#define LWIP_VERSION_STRING_SUFFIX "rc" LWIP_VERSTR(LWIP_VERSION_RC) -#endif - -/** Provides the version of the stack */ -#define LWIP_VERSION ((LWIP_VERSION_MAJOR) << 24 | (LWIP_VERSION_MINOR) << 16 | \ - (LWIP_VERSION_REVISION) << 8 | (LWIP_VERSION_RC)) -/** Provides the version of the stack as string */ -#define LWIP_VERSION_STRING LWIP_VERSTR(LWIP_VERSION_MAJOR) "." LWIP_VERSTR(LWIP_VERSION_MINOR) "." LWIP_VERSTR(LWIP_VERSION_REVISION) LWIP_VERSION_STRING_SUFFIX - -/** - * @} - */ - -/* Modules initialization */ -void lwip_init(void); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_INIT_H */ diff --git a/core/c/include/lwip/init.h.cmake.in b/core/c/include/lwip/init.h.cmake.in deleted file mode 100755 index d7c017e..0000000 --- a/core/c/include/lwip/init.h.cmake.in +++ /dev/null @@ -1,100 +0,0 @@ -/** - * @file - * lwIP initialization API - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_INIT_H -#define LWIP_HDR_INIT_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * @defgroup lwip_version Version - * @ingroup lwip - * @{ - */ - -/** X.x.x: Major version of the stack */ -#define LWIP_VERSION_MAJOR ${LWIP_VERSION_MAJOR} -/** x.X.x: Minor version of the stack */ -#define LWIP_VERSION_MINOR ${LWIP_VERSION_MINOR} -/** x.x.X: Revision of the stack */ -#define LWIP_VERSION_REVISION ${LWIP_VERSION_REVISION} -/** For release candidates, this is set to 1..254 - * For official releases, this is set to 255 (LWIP_RC_RELEASE) - * For development versions (Git), this is set to 0 (LWIP_RC_DEVELOPMENT) */ -#define LWIP_VERSION_RC ${LWIP_VERSION_RC} - -/** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */ -#define LWIP_RC_RELEASE 255 -/** LWIP_VERSION_RC is set to LWIP_RC_DEVELOPMENT for Git versions */ -#define LWIP_RC_DEVELOPMENT 0 - -#define LWIP_VERSION_IS_RELEASE (LWIP_VERSION_RC == LWIP_RC_RELEASE) -#define LWIP_VERSION_IS_DEVELOPMENT (LWIP_VERSION_RC == LWIP_RC_DEVELOPMENT) -#define LWIP_VERSION_IS_RC ((LWIP_VERSION_RC != LWIP_RC_RELEASE) && (LWIP_VERSION_RC != LWIP_RC_DEVELOPMENT)) - -/* Some helper defines to get a version string */ -#define LWIP_VERSTR2(x) #x -#define LWIP_VERSTR(x) LWIP_VERSTR2(x) -#if LWIP_VERSION_IS_RELEASE -#define LWIP_VERSION_STRING_SUFFIX "" -#elif LWIP_VERSION_IS_DEVELOPMENT -#define LWIP_VERSION_STRING_SUFFIX "d" -#else -#define LWIP_VERSION_STRING_SUFFIX "rc" LWIP_VERSTR(LWIP_VERSION_RC) -#endif - -/** Provides the version of the stack */ -#define LWIP_VERSION ((LWIP_VERSION_MAJOR) << 24 | (LWIP_VERSION_MINOR) << 16 | \ - (LWIP_VERSION_REVISION) << 8 | (LWIP_VERSION_RC)) -/** Provides the version of the stack as string */ -#define LWIP_VERSION_STRING LWIP_VERSTR(LWIP_VERSION_MAJOR) "." LWIP_VERSTR(LWIP_VERSION_MINOR) "." LWIP_VERSTR(LWIP_VERSION_REVISION) LWIP_VERSION_STRING_SUFFIX - -/** - * @} - */ - -/* Modules initialization */ -void lwip_init(void); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_INIT_H */ diff --git a/core/c/include/lwip/ip.h b/core/c/include/lwip/ip.h deleted file mode 100755 index 28889d5..0000000 --- a/core/c/include/lwip/ip.h +++ /dev/null @@ -1,330 +0,0 @@ -/** - * @file - * IP API - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_IP_H -#define LWIP_HDR_IP_H - -#include "lwip/opt.h" - -#include "lwip/def.h" -#include "lwip/pbuf.h" -#include "lwip/ip_addr.h" -#include "lwip/err.h" -#include "lwip/netif.h" -#include "lwip/ip4.h" -#include "lwip/ip6.h" -#include "lwip/prot/ip.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* This is passed as the destination address to ip_output_if (not - to ip_output), meaning that an IP header already is constructed - in the pbuf. This is used when TCP retransmits. */ -#define LWIP_IP_HDRINCL NULL - -/** pbufs passed to IP must have a ref-count of 1 as their payload pointer - gets altered as the packet is passed down the stack */ -#ifndef LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX -#define LWIP_IP_CHECK_PBUF_REF_COUNT_FOR_TX(p) LWIP_ASSERT("p->ref == 1", (p)->ref == 1) -#endif - -#if LWIP_NETIF_USE_HINTS -#define IP_PCB_NETIFHINT ;struct netif_hint netif_hints -#else /* LWIP_NETIF_USE_HINTS */ -#define IP_PCB_NETIFHINT -#endif /* LWIP_NETIF_USE_HINTS */ - -/** This is the common part of all PCB types. It needs to be at the - beginning of a PCB type definition. It is located here so that - changes to this common part are made in one location instead of - having to change all PCB structs. */ -#define IP_PCB \ - /* ip addresses in network byte order */ \ - ip_addr_t local_ip; \ - ip_addr_t remote_ip; \ - /* Bound netif index */ \ - u8_t netif_idx; \ - /* Socket options */ \ - u8_t so_options; \ - /* Type Of Service */ \ - u8_t tos; \ - /* Time To Live */ \ - u8_t ttl \ - /* link layer address resolution hint */ \ - IP_PCB_NETIFHINT - -struct ip_pcb { - /* Common members of all PCB types */ - IP_PCB; -}; - -/* - * Option flags per-socket. These are the same like SO_XXX in sockets.h - */ -#define SOF_REUSEADDR 0x04U /* allow local address reuse */ -#define SOF_KEEPALIVE 0x08U /* keep connections alive */ -#define SOF_BROADCAST 0x20U /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */ - -/* These flags are inherited (e.g. from a listen-pcb to a connection-pcb): */ -#define SOF_INHERITED (SOF_REUSEADDR|SOF_KEEPALIVE) - -/** Global variables of this module, kept in a struct for efficient access using base+index. */ -struct ip_globals -{ - /** The interface that accepted the packet for the current callback invocation. */ - struct netif *current_netif; - /** The interface that received the packet for the current callback invocation. */ - struct netif *current_input_netif; -#if LWIP_IPV4 - /** Header of the input packet currently being processed. */ - const struct ip_hdr *current_ip4_header; -#endif /* LWIP_IPV4 */ -#if LWIP_IPV6 - /** Header of the input IPv6 packet currently being processed. */ - struct ip6_hdr *current_ip6_header; -#endif /* LWIP_IPV6 */ - /** Total header length of current_ip4/6_header (i.e. after this, the UDP/TCP header starts) */ - u16_t current_ip_header_tot_len; - /** Source IP address of current_header */ - ip_addr_t current_iphdr_src; - /** Destination IP address of current_header */ - ip_addr_t current_iphdr_dest; -}; -extern struct ip_globals ip_data; - - -/** Get the interface that accepted the current packet. - * This may or may not be the receiving netif, depending on your netif/network setup. - * This function must only be called from a receive callback (udp_recv, - * raw_recv, tcp_accept). It will return NULL otherwise. */ -#define ip_current_netif() (ip_data.current_netif) -/** Get the interface that received the current packet. - * This function must only be called from a receive callback (udp_recv, - * raw_recv, tcp_accept). It will return NULL otherwise. */ -#define ip_current_input_netif() (ip_data.current_input_netif) -/** Total header length of ip(6)_current_header() (i.e. after this, the UDP/TCP header starts) */ -#define ip_current_header_tot_len() (ip_data.current_ip_header_tot_len) -/** Source IP address of current_header */ -#define ip_current_src_addr() (&ip_data.current_iphdr_src) -/** Destination IP address of current_header */ -#define ip_current_dest_addr() (&ip_data.current_iphdr_dest) - -#if LWIP_IPV4 && LWIP_IPV6 -/** Get the IPv4 header of the current packet. - * This function must only be called from a receive callback (udp_recv, - * raw_recv, tcp_accept). It will return NULL otherwise. */ -#define ip4_current_header() ip_data.current_ip4_header -/** Get the IPv6 header of the current packet. - * This function must only be called from a receive callback (udp_recv, - * raw_recv, tcp_accept). It will return NULL otherwise. */ -#define ip6_current_header() ((const struct ip6_hdr*)(ip_data.current_ip6_header)) -/** Returns TRUE if the current IP input packet is IPv6, FALSE if it is IPv4 */ -#define ip_current_is_v6() (ip6_current_header() != NULL) -/** Source IPv6 address of current_header */ -#define ip6_current_src_addr() (ip_2_ip6(&ip_data.current_iphdr_src)) -/** Destination IPv6 address of current_header */ -#define ip6_current_dest_addr() (ip_2_ip6(&ip_data.current_iphdr_dest)) -/** Get the transport layer protocol */ -#define ip_current_header_proto() (ip_current_is_v6() ? \ - IP6H_NEXTH(ip6_current_header()) :\ - IPH_PROTO(ip4_current_header())) -/** Get the transport layer header */ -#define ip_next_header_ptr() ((const void*)((ip_current_is_v6() ? \ - (const u8_t*)ip6_current_header() : (const u8_t*)ip4_current_header()) + ip_current_header_tot_len())) - -/** Source IP4 address of current_header */ -#define ip4_current_src_addr() (ip_2_ip4(&ip_data.current_iphdr_src)) -/** Destination IP4 address of current_header */ -#define ip4_current_dest_addr() (ip_2_ip4(&ip_data.current_iphdr_dest)) - -#elif LWIP_IPV4 /* LWIP_IPV4 && LWIP_IPV6 */ - -/** Get the IPv4 header of the current packet. - * This function must only be called from a receive callback (udp_recv, - * raw_recv, tcp_accept). It will return NULL otherwise. */ -#define ip4_current_header() ip_data.current_ip4_header -/** Always returns FALSE when only supporting IPv4 only */ -#define ip_current_is_v6() 0 -/** Get the transport layer protocol */ -#define ip_current_header_proto() IPH_PROTO(ip4_current_header()) -/** Get the transport layer header */ -#define ip_next_header_ptr() ((const void*)((const u8_t*)ip4_current_header() + ip_current_header_tot_len())) -/** Source IP4 address of current_header */ -#define ip4_current_src_addr() (&ip_data.current_iphdr_src) -/** Destination IP4 address of current_header */ -#define ip4_current_dest_addr() (&ip_data.current_iphdr_dest) - -#elif LWIP_IPV6 /* LWIP_IPV4 && LWIP_IPV6 */ - -/** Get the IPv6 header of the current packet. - * This function must only be called from a receive callback (udp_recv, - * raw_recv, tcp_accept). It will return NULL otherwise. */ -#define ip6_current_header() ((const struct ip6_hdr*)(ip_data.current_ip6_header)) -/** Always returns TRUE when only supporting IPv6 only */ -#define ip_current_is_v6() 1 -/** Get the transport layer protocol */ -#define ip_current_header_proto() IP6H_NEXTH(ip6_current_header()) -/** Get the transport layer header */ -#define ip_next_header_ptr() ((const void*)(((const u8_t*)ip6_current_header()) + ip_current_header_tot_len())) -/** Source IP6 address of current_header */ -#define ip6_current_src_addr() (&ip_data.current_iphdr_src) -/** Destination IP6 address of current_header */ -#define ip6_current_dest_addr() (&ip_data.current_iphdr_dest) - -#endif /* LWIP_IPV6 */ - -/** Union source address of current_header */ -#define ip_current_src_addr() (&ip_data.current_iphdr_src) -/** Union destination address of current_header */ -#define ip_current_dest_addr() (&ip_data.current_iphdr_dest) - -/** Gets an IP pcb option (SOF_* flags) */ -#define ip_get_option(pcb, opt) ((pcb)->so_options & (opt)) -/** Sets an IP pcb option (SOF_* flags) */ -#define ip_set_option(pcb, opt) ((pcb)->so_options = (u8_t)((pcb)->so_options | (opt))) -/** Resets an IP pcb option (SOF_* flags) */ -#define ip_reset_option(pcb, opt) ((pcb)->so_options = (u8_t)((pcb)->so_options & ~(opt))) - -#if LWIP_IPV4 && LWIP_IPV6 -/** - * @ingroup ip - * Output IP packet, netif is selected by source address - */ -#define ip_output(p, src, dest, ttl, tos, proto) \ - (IP_IS_V6(dest) ? \ - ip6_output(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto) : \ - ip4_output(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto)) -/** - * @ingroup ip - * Output IP packet to specified interface - */ -#define ip_output_if(p, src, dest, ttl, tos, proto, netif) \ - (IP_IS_V6(dest) ? \ - ip6_output_if(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto, netif) : \ - ip4_output_if(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto, netif)) -/** - * @ingroup ip - * Output IP packet to interface specifying source address - */ -#define ip_output_if_src(p, src, dest, ttl, tos, proto, netif) \ - (IP_IS_V6(dest) ? \ - ip6_output_if_src(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto, netif) : \ - ip4_output_if_src(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto, netif)) -/** Output IP packet that already includes an IP header. */ -#define ip_output_if_hdrincl(p, src, dest, netif) \ - (IP_IS_V6(dest) ? \ - ip6_output_if(p, ip_2_ip6(src), LWIP_IP_HDRINCL, 0, 0, 0, netif) : \ - ip4_output_if(p, ip_2_ip4(src), LWIP_IP_HDRINCL, 0, 0, 0, netif)) -/** Output IP packet with netif_hint */ -#define ip_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) \ - (IP_IS_V6(dest) ? \ - ip6_output_hinted(p, ip_2_ip6(src), ip_2_ip6(dest), ttl, tos, proto, netif_hint) : \ - ip4_output_hinted(p, ip_2_ip4(src), ip_2_ip4(dest), ttl, tos, proto, netif_hint)) -/** - * @ingroup ip - * Get netif for address combination. See \ref ip6_route and \ref ip4_route - */ -#define ip_route(src, dest) \ - (IP_IS_V6(dest) ? \ - ip6_route(ip_2_ip6(src), ip_2_ip6(dest)) : \ - ip4_route_src(ip_2_ip4(src), ip_2_ip4(dest))) -/** - * @ingroup ip - * Get netif for IP. - */ -#define ip_netif_get_local_ip(netif, dest) (IP_IS_V6(dest) ? \ - ip6_netif_get_local_ip(netif, ip_2_ip6(dest)) : \ - ip4_netif_get_local_ip(netif)) -#define ip_debug_print(is_ipv6, p) ((is_ipv6) ? ip6_debug_print(p) : ip4_debug_print(p)) - -err_t ip_input(struct pbuf *p, struct netif *inp); - -#elif LWIP_IPV4 /* LWIP_IPV4 && LWIP_IPV6 */ - -#define ip_output(p, src, dest, ttl, tos, proto) \ - ip4_output(p, src, dest, ttl, tos, proto) -#define ip_output_if(p, src, dest, ttl, tos, proto, netif) \ - ip4_output_if(p, src, dest, ttl, tos, proto, netif) -#define ip_output_if_src(p, src, dest, ttl, tos, proto, netif) \ - ip4_output_if_src(p, src, dest, ttl, tos, proto, netif) -#define ip_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) \ - ip4_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) -#define ip_output_if_hdrincl(p, src, dest, netif) \ - ip4_output_if(p, src, LWIP_IP_HDRINCL, 0, 0, 0, netif) -#define ip_route(src, dest) \ - ip4_route_src(src, dest) -#define ip_netif_get_local_ip(netif, dest) \ - ip4_netif_get_local_ip(netif) -#define ip_debug_print(is_ipv6, p) ip4_debug_print(p) - -#define ip_input ip4_input - -#elif LWIP_IPV6 /* LWIP_IPV4 && LWIP_IPV6 */ - -#define ip_output(p, src, dest, ttl, tos, proto) \ - ip6_output(p, src, dest, ttl, tos, proto) -#define ip_output_if(p, src, dest, ttl, tos, proto, netif) \ - ip6_output_if(p, src, dest, ttl, tos, proto, netif) -#define ip_output_if_src(p, src, dest, ttl, tos, proto, netif) \ - ip6_output_if_src(p, src, dest, ttl, tos, proto, netif) -#define ip_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) \ - ip6_output_hinted(p, src, dest, ttl, tos, proto, netif_hint) -#define ip_output_if_hdrincl(p, src, dest, netif) \ - ip6_output_if(p, src, LWIP_IP_HDRINCL, 0, 0, 0, netif) -#define ip_route(src, dest) \ - ip6_route(src, dest) -#define ip_netif_get_local_ip(netif, dest) \ - ip6_netif_get_local_ip(netif, dest) -#define ip_debug_print(is_ipv6, p) ip6_debug_print(p) - -#define ip_input ip6_input - -#endif /* LWIP_IPV6 */ - -#define ip_route_get_local_ip(src, dest, netif, ipaddr) do { \ - (netif) = ip_route(src, dest); \ - (ipaddr) = ip_netif_get_local_ip(netif, dest); \ -}while(0) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_IP_H */ - - diff --git a/core/c/include/lwip/ip4.h b/core/c/include/lwip/ip4.h deleted file mode 100755 index 6409c4b..0000000 --- a/core/c/include/lwip/ip4.h +++ /dev/null @@ -1,111 +0,0 @@ -/** - * @file - * IPv4 API - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_IP4_H -#define LWIP_HDR_IP4_H - -#include "lwip/opt.h" - -#if LWIP_IPV4 - -#include "lwip/def.h" -#include "lwip/pbuf.h" -#include "lwip/ip4_addr.h" -#include "lwip/err.h" -#include "lwip/netif.h" -#include "lwip/prot/ip4.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#ifdef LWIP_HOOK_IP4_ROUTE_SRC -#define LWIP_IPV4_SRC_ROUTING 1 -#else -#define LWIP_IPV4_SRC_ROUTING 0 -#endif - -/** Currently, the function ip_output_if_opt() is only used with IGMP */ -#define IP_OPTIONS_SEND (LWIP_IPV4 && LWIP_IGMP) - -#define ip_init() /* Compatibility define, no init needed. */ -struct netif *ip4_route(const ip4_addr_t *dest); -#if LWIP_IPV4_SRC_ROUTING -struct netif *ip4_route_src(const ip4_addr_t *src, const ip4_addr_t *dest); -#else /* LWIP_IPV4_SRC_ROUTING */ -#define ip4_route_src(src, dest) ip4_route(dest) -#endif /* LWIP_IPV4_SRC_ROUTING */ -err_t ip4_input(struct pbuf *p, struct netif *inp); -err_t ip4_output(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, u8_t proto); -err_t ip4_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, u8_t proto, struct netif *netif); -err_t ip4_output_if_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, u8_t proto, struct netif *netif); -#if LWIP_NETIF_USE_HINTS -err_t ip4_output_hinted(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, u8_t proto, struct netif_hint *netif_hint); -#endif /* LWIP_NETIF_USE_HINTS */ -#if IP_OPTIONS_SEND -err_t ip4_output_if_opt(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options, - u16_t optlen); -err_t ip4_output_if_opt_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, - u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options, - u16_t optlen); -#endif /* IP_OPTIONS_SEND */ - -#if LWIP_MULTICAST_TX_OPTIONS -void ip4_set_default_multicast_netif(struct netif* default_multicast_netif); -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - -#define ip4_netif_get_local_ip(netif) (((netif) != NULL) ? netif_ip_addr4(netif) : NULL) - -#if IP_DEBUG -void ip4_debug_print(struct pbuf *p); -#else -#define ip4_debug_print(p) -#endif /* IP_DEBUG */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV4 */ - -#endif /* LWIP_HDR_IP_H */ - - diff --git a/core/c/include/lwip/ip4_addr.h b/core/c/include/lwip/ip4_addr.h deleted file mode 100755 index 9990756..0000000 --- a/core/c/include/lwip/ip4_addr.h +++ /dev/null @@ -1,216 +0,0 @@ -/** - * @file - * IPv4 address API - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_IP4_ADDR_H -#define LWIP_HDR_IP4_ADDR_H - -#include "lwip/opt.h" -#include "lwip/def.h" - -#if LWIP_IPV4 - -#ifdef __cplusplus -extern "C" { -#endif - -/** This is the aligned version of ip4_addr_t, - used as local variable, on the stack, etc. */ -struct ip4_addr { - u32_t addr; -}; - -/** ip4_addr_t uses a struct for convenience only, so that the same defines can - * operate both on ip4_addr_t as well as on ip4_addr_p_t. */ -typedef struct ip4_addr ip4_addr_t; - -/* Forward declaration to not include netif.h */ -struct netif; - -/** 255.255.255.255 */ -#define IPADDR_NONE ((u32_t)0xffffffffUL) -/** 127.0.0.1 */ -#define IPADDR_LOOPBACK ((u32_t)0x7f000001UL) -/** 0.0.0.0 */ -#define IPADDR_ANY ((u32_t)0x00000000UL) -/** 255.255.255.255 */ -#define IPADDR_BROADCAST ((u32_t)0xffffffffUL) - -/* Definitions of the bits in an Internet address integer. - - On subnets, host and network parts are found according to - the subnet mask, not these masks. */ -#define IP_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0) -#define IP_CLASSA_NET 0xff000000 -#define IP_CLASSA_NSHIFT 24 -#define IP_CLASSA_HOST (0xffffffff & ~IP_CLASSA_NET) -#define IP_CLASSA_MAX 128 - -#define IP_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL) -#define IP_CLASSB_NET 0xffff0000 -#define IP_CLASSB_NSHIFT 16 -#define IP_CLASSB_HOST (0xffffffff & ~IP_CLASSB_NET) -#define IP_CLASSB_MAX 65536 - -#define IP_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL) -#define IP_CLASSC_NET 0xffffff00 -#define IP_CLASSC_NSHIFT 8 -#define IP_CLASSC_HOST (0xffffffff & ~IP_CLASSC_NET) - -#define IP_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL) -#define IP_CLASSD_NET 0xf0000000 /* These ones aren't really */ -#define IP_CLASSD_NSHIFT 28 /* net and host fields, but */ -#define IP_CLASSD_HOST 0x0fffffff /* routing needn't know. */ -#define IP_MULTICAST(a) IP_CLASSD(a) - -#define IP_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL) -#define IP_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL) - -#define IP_LOOPBACKNET 127 /* official! */ - -/** Set an IP address given by the four byte-parts */ -#define IP4_ADDR(ipaddr, a,b,c,d) (ipaddr)->addr = PP_HTONL(LWIP_MAKEU32(a,b,c,d)) - -/** Copy IP address - faster than ip4_addr_set: no NULL check */ -#define ip4_addr_copy(dest, src) ((dest).addr = (src).addr) -/** Safely copy one IP address to another (src may be NULL) */ -#define ip4_addr_set(dest, src) ((dest)->addr = \ - ((src) == NULL ? 0 : \ - (src)->addr)) -/** Set complete address to zero */ -#define ip4_addr_set_zero(ipaddr) ((ipaddr)->addr = 0) -/** Set address to IPADDR_ANY (no need for lwip_htonl()) */ -#define ip4_addr_set_any(ipaddr) ((ipaddr)->addr = IPADDR_ANY) -/** Set address to loopback address */ -#define ip4_addr_set_loopback(ipaddr) ((ipaddr)->addr = PP_HTONL(IPADDR_LOOPBACK)) -/** Check if an address is in the loopback region */ -#define ip4_addr_isloopback(ipaddr) (((ipaddr)->addr & PP_HTONL(IP_CLASSA_NET)) == PP_HTONL(((u32_t)IP_LOOPBACKNET) << 24)) -/** Safely copy one IP address to another and change byte order - * from host- to network-order. */ -#define ip4_addr_set_hton(dest, src) ((dest)->addr = \ - ((src) == NULL ? 0:\ - lwip_htonl((src)->addr))) -/** IPv4 only: set the IP address given as an u32_t */ -#define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32)) -/** IPv4 only: get the IP address as an u32_t */ -#define ip4_addr_get_u32(src_ipaddr) ((src_ipaddr)->addr) - -/** Get the network address by combining host address with netmask */ -#define ip4_addr_get_network(target, host, netmask) do { ((target)->addr = ((host)->addr) & ((netmask)->addr)); } while(0) - -/** - * Determine if two address are on the same network. - * - * @arg addr1 IP address 1 - * @arg addr2 IP address 2 - * @arg mask network identifier mask - * @return !0 if the network identifiers of both address match - */ -#define ip4_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \ - (mask)->addr) == \ - ((addr2)->addr & \ - (mask)->addr)) -#define ip4_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr) - -#define ip4_addr_isany_val(addr1) ((addr1).addr == IPADDR_ANY) -#define ip4_addr_isany(addr1) ((addr1) == NULL || ip4_addr_isany_val(*(addr1))) - -#define ip4_addr_isbroadcast(addr1, netif) ip4_addr_isbroadcast_u32((addr1)->addr, netif) -u8_t ip4_addr_isbroadcast_u32(u32_t addr, const struct netif *netif); - -#define ip_addr_netmask_valid(netmask) ip4_addr_netmask_valid((netmask)->addr) -u8_t ip4_addr_netmask_valid(u32_t netmask); - -#define ip4_addr_ismulticast(addr1) (((addr1)->addr & PP_HTONL(0xf0000000UL)) == PP_HTONL(0xe0000000UL)) - -#define ip4_addr_islinklocal(addr1) (((addr1)->addr & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xa9fe0000UL)) - -#define ip4_addr_debug_print_parts(debug, a, b, c, d) \ - LWIP_DEBUGF(debug, ("%" U16_F ".%" U16_F ".%" U16_F ".%" U16_F, a, b, c, d)) -#define ip4_addr_debug_print(debug, ipaddr) \ - ip4_addr_debug_print_parts(debug, \ - (u16_t)((ipaddr) != NULL ? ip4_addr1_16(ipaddr) : 0), \ - (u16_t)((ipaddr) != NULL ? ip4_addr2_16(ipaddr) : 0), \ - (u16_t)((ipaddr) != NULL ? ip4_addr3_16(ipaddr) : 0), \ - (u16_t)((ipaddr) != NULL ? ip4_addr4_16(ipaddr) : 0)) -#define ip4_addr_debug_print_val(debug, ipaddr) \ - ip4_addr_debug_print_parts(debug, \ - ip4_addr1_16_val(ipaddr), \ - ip4_addr2_16_val(ipaddr), \ - ip4_addr3_16_val(ipaddr), \ - ip4_addr4_16_val(ipaddr)) - -/* Get one byte from the 4-byte address */ -#define ip4_addr_get_byte(ipaddr, idx) (((const u8_t*)(&(ipaddr)->addr))[idx]) -#define ip4_addr1(ipaddr) ip4_addr_get_byte(ipaddr, 0) -#define ip4_addr2(ipaddr) ip4_addr_get_byte(ipaddr, 1) -#define ip4_addr3(ipaddr) ip4_addr_get_byte(ipaddr, 2) -#define ip4_addr4(ipaddr) ip4_addr_get_byte(ipaddr, 3) -/* Get one byte from the 4-byte address, but argument is 'ip4_addr_t', - * not a pointer */ -#define ip4_addr_get_byte_val(ipaddr, idx) ((u8_t)(((ipaddr).addr >> (idx * 8)) & 0xff)) -#define ip4_addr1_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 0) -#define ip4_addr2_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 1) -#define ip4_addr3_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 2) -#define ip4_addr4_val(ipaddr) ip4_addr_get_byte_val(ipaddr, 3) -/* These are cast to u16_t, with the intent that they are often arguments - * to printf using the U16_F format from cc.h. */ -#define ip4_addr1_16(ipaddr) ((u16_t)ip4_addr1(ipaddr)) -#define ip4_addr2_16(ipaddr) ((u16_t)ip4_addr2(ipaddr)) -#define ip4_addr3_16(ipaddr) ((u16_t)ip4_addr3(ipaddr)) -#define ip4_addr4_16(ipaddr) ((u16_t)ip4_addr4(ipaddr)) -#define ip4_addr1_16_val(ipaddr) ((u16_t)ip4_addr1_val(ipaddr)) -#define ip4_addr2_16_val(ipaddr) ((u16_t)ip4_addr2_val(ipaddr)) -#define ip4_addr3_16_val(ipaddr) ((u16_t)ip4_addr3_val(ipaddr)) -#define ip4_addr4_16_val(ipaddr) ((u16_t)ip4_addr4_val(ipaddr)) - -#define IP4ADDR_STRLEN_MAX 16 - -/** For backwards compatibility */ -#define ip_ntoa(ipaddr) ipaddr_ntoa(ipaddr) - -u32_t ipaddr_addr(const char *cp); -int ip4addr_aton(const char *cp, ip4_addr_t *addr); -/** returns ptr to static buffer; not reentrant! */ -char *ip4addr_ntoa(const ip4_addr_t *addr); -char *ip4addr_ntoa_r(const ip4_addr_t *addr, char *buf, int buflen); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV4 */ - -#endif /* LWIP_HDR_IP_ADDR_H */ diff --git a/core/c/include/lwip/ip4_frag.h b/core/c/include/lwip/ip4_frag.h deleted file mode 100755 index 18cd2d0..0000000 --- a/core/c/include/lwip/ip4_frag.h +++ /dev/null @@ -1,100 +0,0 @@ -/** - * @file - * IP fragmentation/reassembly - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Jani Monoses - * - */ - -#ifndef LWIP_HDR_IP4_FRAG_H -#define LWIP_HDR_IP4_FRAG_H - -#include "lwip/opt.h" -#include "lwip/err.h" -#include "lwip/pbuf.h" -#include "lwip/netif.h" -#include "lwip/ip_addr.h" -#include "lwip/ip.h" - -#if LWIP_IPV4 - -#ifdef __cplusplus -extern "C" { -#endif - -#if IP_REASSEMBLY -/* The IP reassembly timer interval in milliseconds. */ -#define IP_TMR_INTERVAL 1000 - -/** IP reassembly helper struct. - * This is exported because memp needs to know the size. - */ -struct ip_reassdata { - struct ip_reassdata *next; - struct pbuf *p; - struct ip_hdr iphdr; - u16_t datagram_len; - u8_t flags; - u8_t timer; -}; - -void ip_reass_init(void); -void ip_reass_tmr(void); -struct pbuf * ip4_reass(struct pbuf *p); -#endif /* IP_REASSEMBLY */ - -#if IP_FRAG -#if !LWIP_NETIF_TX_SINGLE_PBUF -#ifndef LWIP_PBUF_CUSTOM_REF_DEFINED -#define LWIP_PBUF_CUSTOM_REF_DEFINED -/** A custom pbuf that holds a reference to another pbuf, which is freed - * when this custom pbuf is freed. This is used to create a custom PBUF_REF - * that points into the original pbuf. */ -struct pbuf_custom_ref { - /** 'base class' */ - struct pbuf_custom pc; - /** pointer to the original pbuf that is referenced */ - struct pbuf *original; -}; -#endif /* LWIP_PBUF_CUSTOM_REF_DEFINED */ -#endif /* !LWIP_NETIF_TX_SINGLE_PBUF */ - -err_t ip4_frag(struct pbuf *p, struct netif *netif, const ip4_addr_t *dest); -#endif /* IP_FRAG */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV4 */ - -#endif /* LWIP_HDR_IP4_FRAG_H */ diff --git a/core/c/include/lwip/ip6.h b/core/c/include/lwip/ip6.h deleted file mode 100755 index 706f66d..0000000 --- a/core/c/include/lwip/ip6.h +++ /dev/null @@ -1,93 +0,0 @@ -/** - * @file - * - * IPv6 layer. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ -#ifndef LWIP_HDR_IP6_H -#define LWIP_HDR_IP6_H - -#include "lwip/opt.h" - -#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/ip6_addr.h" -#include "lwip/prot/ip6.h" -#include "lwip/def.h" -#include "lwip/pbuf.h" -#include "lwip/netif.h" - -#include "lwip/err.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct netif *ip6_route(const ip6_addr_t *src, const ip6_addr_t *dest); -const ip_addr_t *ip6_select_source_address(struct netif *netif, const ip6_addr_t * dest); -err_t ip6_input(struct pbuf *p, struct netif *inp); -err_t ip6_output(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, - u8_t hl, u8_t tc, u8_t nexth); -err_t ip6_output_if(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, - u8_t hl, u8_t tc, u8_t nexth, struct netif *netif); -err_t ip6_output_if_src(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, - u8_t hl, u8_t tc, u8_t nexth, struct netif *netif); -#if LWIP_NETIF_USE_HINTS -err_t ip6_output_hinted(struct pbuf *p, const ip6_addr_t *src, const ip6_addr_t *dest, - u8_t hl, u8_t tc, u8_t nexth, struct netif_hint *netif_hint); -#endif /* LWIP_NETIF_USE_HINTS */ -#if LWIP_IPV6_MLD -err_t ip6_options_add_hbh_ra(struct pbuf * p, u8_t nexth, u8_t value); -#endif /* LWIP_IPV6_MLD */ - -#define ip6_netif_get_local_ip(netif, dest) (((netif) != NULL) ? \ - ip6_select_source_address(netif, dest) : NULL) - -#if IP6_DEBUG -void ip6_debug_print(struct pbuf *p); -#else -#define ip6_debug_print(p) -#endif /* IP6_DEBUG */ - - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6 */ - -#endif /* LWIP_HDR_IP6_H */ diff --git a/core/c/include/lwip/ip6_addr.h b/core/c/include/lwip/ip6_addr.h deleted file mode 100755 index 7c1f913..0000000 --- a/core/c/include/lwip/ip6_addr.h +++ /dev/null @@ -1,352 +0,0 @@ -/** - * @file - * - * IPv6 addresses. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * Structs and macros for handling IPv6 addresses. - * - * Please coordinate changes and requests with Ivan Delamer - * - */ -#ifndef LWIP_HDR_IP6_ADDR_H -#define LWIP_HDR_IP6_ADDR_H - -#include "lwip/opt.h" -#include "def.h" - -#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/ip6_zone.h" - -#ifdef __cplusplus -extern "C" { -#endif - - -/** This is the aligned version of ip6_addr_t, - used as local variable, on the stack, etc. */ -struct ip6_addr { - u32_t addr[4]; -#if LWIP_IPV6_SCOPES - u8_t zone; -#endif /* LWIP_IPV6_SCOPES */ -}; - -/** IPv6 address */ -typedef struct ip6_addr ip6_addr_t; - -/** Set an IPv6 partial address given by byte-parts */ -#define IP6_ADDR_PART(ip6addr, index, a,b,c,d) \ - (ip6addr)->addr[index] = PP_HTONL(LWIP_MAKEU32(a,b,c,d)) - -/** Set a full IPv6 address by passing the 4 u32_t indices in network byte order - (use PP_HTONL() for constants) */ -#define IP6_ADDR(ip6addr, idx0, idx1, idx2, idx3) do { \ - (ip6addr)->addr[0] = idx0; \ - (ip6addr)->addr[1] = idx1; \ - (ip6addr)->addr[2] = idx2; \ - (ip6addr)->addr[3] = idx3; \ - ip6_addr_clear_zone(ip6addr); } while(0) - -/** Access address in 16-bit block */ -#define IP6_ADDR_BLOCK1(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xffff)) -/** Access address in 16-bit block */ -#define IP6_ADDR_BLOCK2(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[0])) & 0xffff)) -/** Access address in 16-bit block */ -#define IP6_ADDR_BLOCK3(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1]) >> 16) & 0xffff)) -/** Access address in 16-bit block */ -#define IP6_ADDR_BLOCK4(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[1])) & 0xffff)) -/** Access address in 16-bit block */ -#define IP6_ADDR_BLOCK5(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2]) >> 16) & 0xffff)) -/** Access address in 16-bit block */ -#define IP6_ADDR_BLOCK6(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[2])) & 0xffff)) -/** Access address in 16-bit block */ -#define IP6_ADDR_BLOCK7(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3]) >> 16) & 0xffff)) -/** Access address in 16-bit block */ -#define IP6_ADDR_BLOCK8(ip6addr) ((u16_t)((lwip_htonl((ip6addr)->addr[3])) & 0xffff)) - -/** Copy IPv6 address - faster than ip6_addr_set: no NULL check */ -#define ip6_addr_copy(dest, src) do{(dest).addr[0] = (src).addr[0]; \ - (dest).addr[1] = (src).addr[1]; \ - (dest).addr[2] = (src).addr[2]; \ - (dest).addr[3] = (src).addr[3]; \ - ip6_addr_copy_zone((dest), (src)); }while(0) -/** Safely copy one IPv6 address to another (src may be NULL) */ -#define ip6_addr_set(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : (src)->addr[0]; \ - (dest)->addr[1] = (src) == NULL ? 0 : (src)->addr[1]; \ - (dest)->addr[2] = (src) == NULL ? 0 : (src)->addr[2]; \ - (dest)->addr[3] = (src) == NULL ? 0 : (src)->addr[3]; \ - ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src)); }while(0) - -/** Copy packed IPv6 address to unpacked IPv6 address; zone is not set */ -#define ip6_addr_copy_from_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \ - (dest).addr[1] = (src).addr[1]; \ - (dest).addr[2] = (src).addr[2]; \ - (dest).addr[3] = (src).addr[3]; \ - ip6_addr_clear_zone(&dest); }while(0) - -/** Copy unpacked IPv6 address to packed IPv6 address; zone is lost */ -#define ip6_addr_copy_to_packed(dest, src) do{(dest).addr[0] = (src).addr[0]; \ - (dest).addr[1] = (src).addr[1]; \ - (dest).addr[2] = (src).addr[2]; \ - (dest).addr[3] = (src).addr[3]; }while(0) - -/** Set complete address to zero */ -#define ip6_addr_set_zero(ip6addr) do{(ip6addr)->addr[0] = 0; \ - (ip6addr)->addr[1] = 0; \ - (ip6addr)->addr[2] = 0; \ - (ip6addr)->addr[3] = 0; \ - ip6_addr_clear_zone(ip6addr);}while(0) - -/** Set address to ipv6 'any' (no need for lwip_htonl()) */ -#define ip6_addr_set_any(ip6addr) ip6_addr_set_zero(ip6addr) -/** Set address to ipv6 loopback address */ -#define ip6_addr_set_loopback(ip6addr) do{(ip6addr)->addr[0] = 0; \ - (ip6addr)->addr[1] = 0; \ - (ip6addr)->addr[2] = 0; \ - (ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \ - ip6_addr_clear_zone(ip6addr);}while(0) -/** Safely copy one IPv6 address to another and change byte order - * from host- to network-order. */ -#define ip6_addr_set_hton(dest, src) do{(dest)->addr[0] = (src) == NULL ? 0 : lwip_htonl((src)->addr[0]); \ - (dest)->addr[1] = (src) == NULL ? 0 : lwip_htonl((src)->addr[1]); \ - (dest)->addr[2] = (src) == NULL ? 0 : lwip_htonl((src)->addr[2]); \ - (dest)->addr[3] = (src) == NULL ? 0 : lwip_htonl((src)->addr[3]); \ - ip6_addr_set_zone((dest), (src) == NULL ? IP6_NO_ZONE : ip6_addr_zone(src));}while(0) - - -/** Compare IPv6 networks, ignoring zone information. To be used sparingly! */ -#define ip6_addr_netcmp_zoneless(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \ - ((addr1)->addr[1] == (addr2)->addr[1])) - -/** - * Determine if two IPv6 address are on the same network. - * - * @param addr1 IPv6 address 1 - * @param addr2 IPv6 address 2 - * @return 1 if the network identifiers of both address match, 0 if not - */ -#define ip6_addr_netcmp(addr1, addr2) (ip6_addr_netcmp_zoneless((addr1), (addr2)) && \ - ip6_addr_cmp_zone((addr1), (addr2))) - -/* Exact-host comparison *after* ip6_addr_netcmp() succeeded, for efficiency. */ -#define ip6_addr_nethostcmp(addr1, addr2) (((addr1)->addr[2] == (addr2)->addr[2]) && \ - ((addr1)->addr[3] == (addr2)->addr[3])) - -/** Compare IPv6 addresses, ignoring zone information. To be used sparingly! */ -#define ip6_addr_cmp_zoneless(addr1, addr2) (((addr1)->addr[0] == (addr2)->addr[0]) && \ - ((addr1)->addr[1] == (addr2)->addr[1]) && \ - ((addr1)->addr[2] == (addr2)->addr[2]) && \ - ((addr1)->addr[3] == (addr2)->addr[3])) -/** - * Determine if two IPv6 addresses are the same. In particular, the address - * part of both must be the same, and the zone must be compatible. - * - * @param addr1 IPv6 address 1 - * @param addr2 IPv6 address 2 - * @return 1 if the addresses are considered equal, 0 if not - */ -#define ip6_addr_cmp(addr1, addr2) (ip6_addr_cmp_zoneless((addr1), (addr2)) && \ - ip6_addr_cmp_zone((addr1), (addr2))) - -/** Compare IPv6 address to packed address and zone */ -#define ip6_addr_cmp_packed(ip6addr, paddr, zone_idx) (((ip6addr)->addr[0] == (paddr)->addr[0]) && \ - ((ip6addr)->addr[1] == (paddr)->addr[1]) && \ - ((ip6addr)->addr[2] == (paddr)->addr[2]) && \ - ((ip6addr)->addr[3] == (paddr)->addr[3]) && \ - ip6_addr_equals_zone((ip6addr), (zone_idx))) - -#define ip6_get_subnet_id(ip6addr) (lwip_htonl((ip6addr)->addr[2]) & 0x0000ffffUL) - -#define ip6_addr_isany_val(ip6addr) (((ip6addr).addr[0] == 0) && \ - ((ip6addr).addr[1] == 0) && \ - ((ip6addr).addr[2] == 0) && \ - ((ip6addr).addr[3] == 0)) -#define ip6_addr_isany(ip6addr) (((ip6addr) == NULL) || ip6_addr_isany_val(*(ip6addr))) - -#define ip6_addr_isloopback(ip6addr) (((ip6addr)->addr[0] == 0UL) && \ - ((ip6addr)->addr[1] == 0UL) && \ - ((ip6addr)->addr[2] == 0UL) && \ - ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL))) - -#define ip6_addr_isglobal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xe0000000UL)) == PP_HTONL(0x20000000UL)) - -#define ip6_addr_islinklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfe800000UL)) - -#define ip6_addr_issitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xffc00000UL)) == PP_HTONL(0xfec00000UL)) - -#define ip6_addr_isuniquelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xfe000000UL)) == PP_HTONL(0xfc000000UL)) - -#define ip6_addr_isipv4mappedipv6(ip6addr) (((ip6addr)->addr[0] == 0) && ((ip6addr)->addr[1] == 0) && (((ip6addr)->addr[2]) == PP_HTONL(0x0000FFFFUL))) - -#define ip6_addr_ismulticast(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL)) -#define ip6_addr_multicast_transient_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00100000UL)) -#define ip6_addr_multicast_prefix_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00200000UL)) -#define ip6_addr_multicast_rendezvous_flag(ip6addr) ((ip6addr)->addr[0] & PP_HTONL(0x00400000UL)) -#define ip6_addr_multicast_scope(ip6addr) ((lwip_htonl((ip6addr)->addr[0]) >> 16) & 0xf) -#define IP6_MULTICAST_SCOPE_RESERVED 0x0 -#define IP6_MULTICAST_SCOPE_RESERVED0 0x0 -#define IP6_MULTICAST_SCOPE_INTERFACE_LOCAL 0x1 -#define IP6_MULTICAST_SCOPE_LINK_LOCAL 0x2 -#define IP6_MULTICAST_SCOPE_RESERVED3 0x3 -#define IP6_MULTICAST_SCOPE_ADMIN_LOCAL 0x4 -#define IP6_MULTICAST_SCOPE_SITE_LOCAL 0x5 -#define IP6_MULTICAST_SCOPE_ORGANIZATION_LOCAL 0x8 -#define IP6_MULTICAST_SCOPE_GLOBAL 0xe -#define IP6_MULTICAST_SCOPE_RESERVEDF 0xf -#define ip6_addr_ismulticast_iflocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff010000UL)) -#define ip6_addr_ismulticast_linklocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff020000UL)) -#define ip6_addr_ismulticast_adminlocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff040000UL)) -#define ip6_addr_ismulticast_sitelocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff050000UL)) -#define ip6_addr_ismulticast_orglocal(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff080000UL)) -#define ip6_addr_ismulticast_global(ip6addr) (((ip6addr)->addr[0] & PP_HTONL(0xff8f0000UL)) == PP_HTONL(0xff0e0000UL)) - -/* Scoping note: while interface-local and link-local multicast addresses do - * have a scope (i.e., they are meaningful only in the context of a particular - * interface), the following functions are not assigning or comparing zone - * indices. The reason for this is backward compatibility. Any call site that - * produces a non-global multicast address must assign a multicast address as - * appropriate itself. */ - -#define ip6_addr_isallnodes_iflocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff010000UL)) && \ - ((ip6addr)->addr[1] == 0UL) && \ - ((ip6addr)->addr[2] == 0UL) && \ - ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL))) - -#define ip6_addr_isallnodes_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \ - ((ip6addr)->addr[1] == 0UL) && \ - ((ip6addr)->addr[2] == 0UL) && \ - ((ip6addr)->addr[3] == PP_HTONL(0x00000001UL))) -#define ip6_addr_set_allnodes_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \ - (ip6addr)->addr[1] = 0; \ - (ip6addr)->addr[2] = 0; \ - (ip6addr)->addr[3] = PP_HTONL(0x00000001UL); \ - ip6_addr_clear_zone(ip6addr); }while(0) - -#define ip6_addr_isallrouters_linklocal(ip6addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \ - ((ip6addr)->addr[1] == 0UL) && \ - ((ip6addr)->addr[2] == 0UL) && \ - ((ip6addr)->addr[3] == PP_HTONL(0x00000002UL))) -#define ip6_addr_set_allrouters_linklocal(ip6addr) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \ - (ip6addr)->addr[1] = 0; \ - (ip6addr)->addr[2] = 0; \ - (ip6addr)->addr[3] = PP_HTONL(0x00000002UL); \ - ip6_addr_clear_zone(ip6addr); }while(0) - -#define ip6_addr_issolicitednode(ip6addr) ( ((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \ - ((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \ - (((ip6addr)->addr[3] & PP_HTONL(0xff000000UL)) == PP_HTONL(0xff000000UL)) ) - -#define ip6_addr_set_solicitednode(ip6addr, if_id) do{(ip6addr)->addr[0] = PP_HTONL(0xff020000UL); \ - (ip6addr)->addr[1] = 0; \ - (ip6addr)->addr[2] = PP_HTONL(0x00000001UL); \ - (ip6addr)->addr[3] = (PP_HTONL(0xff000000UL) | (if_id)); \ - ip6_addr_clear_zone(ip6addr); }while(0) - -#define ip6_addr_cmp_solicitednode(ip6addr, sn_addr) (((ip6addr)->addr[0] == PP_HTONL(0xff020000UL)) && \ - ((ip6addr)->addr[1] == 0) && \ - ((ip6addr)->addr[2] == PP_HTONL(0x00000001UL)) && \ - ((ip6addr)->addr[3] == (PP_HTONL(0xff000000UL) | (sn_addr)->addr[3]))) - -/* IPv6 address states. */ -#define IP6_ADDR_INVALID 0x00 -#define IP6_ADDR_TENTATIVE 0x08 -#define IP6_ADDR_TENTATIVE_1 0x09 /* 1 probe sent */ -#define IP6_ADDR_TENTATIVE_2 0x0a /* 2 probes sent */ -#define IP6_ADDR_TENTATIVE_3 0x0b /* 3 probes sent */ -#define IP6_ADDR_TENTATIVE_4 0x0c /* 4 probes sent */ -#define IP6_ADDR_TENTATIVE_5 0x0d /* 5 probes sent */ -#define IP6_ADDR_TENTATIVE_6 0x0e /* 6 probes sent */ -#define IP6_ADDR_TENTATIVE_7 0x0f /* 7 probes sent */ -#define IP6_ADDR_VALID 0x10 /* This bit marks an address as valid (preferred or deprecated) */ -#define IP6_ADDR_PREFERRED 0x30 -#define IP6_ADDR_DEPRECATED 0x10 /* Same as VALID (valid but not preferred) */ -#define IP6_ADDR_DUPLICATED 0x40 /* Failed DAD test, not valid */ - -#define IP6_ADDR_TENTATIVE_COUNT_MASK 0x07 /* 1-7 probes sent */ - -#define ip6_addr_isinvalid(addr_state) (addr_state == IP6_ADDR_INVALID) -#define ip6_addr_istentative(addr_state) (addr_state & IP6_ADDR_TENTATIVE) -#define ip6_addr_isvalid(addr_state) (addr_state & IP6_ADDR_VALID) /* Include valid, preferred, and deprecated. */ -#define ip6_addr_ispreferred(addr_state) (addr_state == IP6_ADDR_PREFERRED) -#define ip6_addr_isdeprecated(addr_state) (addr_state == IP6_ADDR_DEPRECATED) -#define ip6_addr_isduplicated(addr_state) (addr_state == IP6_ADDR_DUPLICATED) - -#if LWIP_IPV6_ADDRESS_LIFETIMES -#define IP6_ADDR_LIFE_STATIC (0) -#define IP6_ADDR_LIFE_INFINITE (0xffffffffUL) -#define ip6_addr_life_isstatic(addr_life) ((addr_life) == IP6_ADDR_LIFE_STATIC) -#define ip6_addr_life_isinfinite(addr_life) ((addr_life) == IP6_ADDR_LIFE_INFINITE) -#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */ - -#define ip6_addr_debug_print_parts(debug, a, b, c, d, e, f, g, h) \ - LWIP_DEBUGF(debug, ("%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F ":%" X16_F, \ - a, b, c, d, e, f, g, h)) -#define ip6_addr_debug_print(debug, ipaddr) \ - ip6_addr_debug_print_parts(debug, \ - (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK1(ipaddr) : 0), \ - (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK2(ipaddr) : 0), \ - (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK3(ipaddr) : 0), \ - (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK4(ipaddr) : 0), \ - (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK5(ipaddr) : 0), \ - (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK6(ipaddr) : 0), \ - (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK7(ipaddr) : 0), \ - (u16_t)((ipaddr) != NULL ? IP6_ADDR_BLOCK8(ipaddr) : 0)) -#define ip6_addr_debug_print_val(debug, ipaddr) \ - ip6_addr_debug_print_parts(debug, \ - IP6_ADDR_BLOCK1(&(ipaddr)), \ - IP6_ADDR_BLOCK2(&(ipaddr)), \ - IP6_ADDR_BLOCK3(&(ipaddr)), \ - IP6_ADDR_BLOCK4(&(ipaddr)), \ - IP6_ADDR_BLOCK5(&(ipaddr)), \ - IP6_ADDR_BLOCK6(&(ipaddr)), \ - IP6_ADDR_BLOCK7(&(ipaddr)), \ - IP6_ADDR_BLOCK8(&(ipaddr))) - -#define IP6ADDR_STRLEN_MAX 46 - -int ip6addr_aton(const char *cp, ip6_addr_t *addr); -/** returns ptr to static buffer; not reentrant! */ -char *ip6addr_ntoa(const ip6_addr_t *addr); -char *ip6addr_ntoa_r(const ip6_addr_t *addr, char *buf, int buflen); - - - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6 */ - -#endif /* LWIP_HDR_IP6_ADDR_H */ diff --git a/core/c/include/lwip/ip6_frag.h b/core/c/include/lwip/ip6_frag.h deleted file mode 100755 index 71940dd..0000000 --- a/core/c/include/lwip/ip6_frag.h +++ /dev/null @@ -1,144 +0,0 @@ -/** - * @file - * - * IPv6 fragmentation and reassembly. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ -#ifndef LWIP_HDR_IP6_FRAG_H -#define LWIP_HDR_IP6_FRAG_H - -#include "lwip/opt.h" -#include "lwip/pbuf.h" -#include "lwip/ip6_addr.h" -#include "lwip/ip6.h" -#include "lwip/netif.h" - -#ifdef __cplusplus -extern "C" { -#endif - - -#if LWIP_IPV6 && LWIP_IPV6_REASS /* don't build if not configured for use in lwipopts.h */ - -/** The IPv6 reassembly timer interval in milliseconds. */ -#define IP6_REASS_TMR_INTERVAL 1000 - -/** IP6_FRAG_COPYHEADER==1: for platforms where sizeof(void*) > 4, "struct - * ip6_reass_helper" is too large to be stored in the IPv6 fragment header, and - * will bleed into the header before it, which may be the IPv6 header or an - * extension header. This means that for each first fragment packet, we need to - * 1) make a copy of some IPv6 header fields (src+dest) that we need later on, - * just in case we do overwrite part of the IPv6 header, and 2) make a copy of - * the header data that we overwrote, so that we can restore it before either - * completing reassembly or sending an ICMPv6 reply. The last part is true even - * if this setting is disabled, but if it is enabled, we need to save a bit - * more data (up to the size of a pointer) because we overwrite more. */ -#ifndef IPV6_FRAG_COPYHEADER -#define IPV6_FRAG_COPYHEADER 0 -#endif - -/* With IPV6_FRAG_COPYHEADER==1, a helper structure may (or, depending on the - * presence of extensions, may not) overwrite part of the IP header. Therefore, - * we copy the fields that we need from the IP header for as long as the helper - * structure may still be in place. This is easier than temporarily restoring - * those fields in the IP header each time we need to perform checks on them. */ -#if IPV6_FRAG_COPYHEADER -#define IPV6_FRAG_SRC(ipr) ((ipr)->src) -#define IPV6_FRAG_DEST(ipr) ((ipr)->dest) -#else /* IPV6_FRAG_COPYHEADER */ -#define IPV6_FRAG_SRC(ipr) ((ipr)->iphdr->src) -#define IPV6_FRAG_DEST(ipr) ((ipr)->iphdr->dest) -#endif /* IPV6_FRAG_COPYHEADER */ - -/** IPv6 reassembly helper struct. - * This is exported because memp needs to know the size. - */ -struct ip6_reassdata { - struct ip6_reassdata *next; - struct pbuf *p; - struct ip6_hdr *iphdr; /* pointer to the first (original) IPv6 header */ -#if IPV6_FRAG_COPYHEADER - ip6_addr_p_t src; /* copy of the source address in the IP header */ - ip6_addr_p_t dest; /* copy of the destination address in the IP header */ - /* This buffer (for the part of the original header that we overwrite) will - * be slightly oversized, but we cannot compute the exact size from here. */ - u8_t orig_hdr[sizeof(struct ip6_frag_hdr) + sizeof(void*)]; -#else /* IPV6_FRAG_COPYHEADER */ - /* In this case we still need the buffer, for sending ICMPv6 replies. */ - u8_t orig_hdr[sizeof(struct ip6_frag_hdr)]; -#endif /* IPV6_FRAG_COPYHEADER */ - u32_t identification; - u16_t datagram_len; - u8_t nexth; - u8_t timer; -#if LWIP_IPV6_SCOPES - u8_t src_zone; /* zone of original packet's source address */ - u8_t dest_zone; /* zone of original packet's destination address */ -#endif /* LWIP_IPV6_SCOPES */ -}; - -#define ip6_reass_init() /* Compatibility define */ -void ip6_reass_tmr(void); -struct pbuf *ip6_reass(struct pbuf *p); - -#endif /* LWIP_IPV6 && LWIP_IPV6_REASS */ - -#if LWIP_IPV6 && LWIP_IPV6_FRAG /* don't build if not configured for use in lwipopts.h */ - -#ifndef LWIP_PBUF_CUSTOM_REF_DEFINED -#define LWIP_PBUF_CUSTOM_REF_DEFINED -/** A custom pbuf that holds a reference to another pbuf, which is freed - * when this custom pbuf is freed. This is used to create a custom PBUF_REF - * that points into the original pbuf. */ -struct pbuf_custom_ref { - /** 'base class' */ - struct pbuf_custom pc; - /** pointer to the original pbuf that is referenced */ - struct pbuf *original; -}; -#endif /* LWIP_PBUF_CUSTOM_REF_DEFINED */ - -err_t ip6_frag(struct pbuf *p, struct netif *netif, const ip6_addr_t *dest); - -#endif /* LWIP_IPV6 && LWIP_IPV6_FRAG */ - - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_IP6_FRAG_H */ diff --git a/core/c/include/lwip/ip6_zone.h b/core/c/include/lwip/ip6_zone.h deleted file mode 100755 index 235141e..0000000 --- a/core/c/include/lwip/ip6_zone.h +++ /dev/null @@ -1,304 +0,0 @@ -/** - * @file - * - * IPv6 address scopes, zones, and scoping policy. - * - * This header provides the means to implement support for IPv6 address scopes, - * as per RFC 4007. An address scope can be either global or more constrained. - * In lwIP, we say that an address "has a scope" or "is scoped" when its scope - * is constrained, in which case the address is meaningful only in a specific - * "zone." For unicast addresses, only link-local addresses have a scope; in - * that case, the scope is the link. For multicast addresses, there are various - * scopes defined by RFC 4007 and others. For any constrained scope, a system - * must establish a (potentially one-to-many) mapping between zones and local - * interfaces. For example, a link-local address is valid on only one link (its - * zone). That link may be attached to one or more local interfaces. The - * decisions on which scopes are constrained and the mapping between zones and - * interfaces is together what we refer to as the "scoping policy" - more on - * this in a bit. - * - * In lwIP, each IPv6 address has an associated zone index. This zone index may - * be set to "no zone" (IP6_NO_ZONE, 0) or an actual zone. We say that an - * address "has a zone" or "is zoned" when its zone index is *not* set to "no - * zone." In lwIP, in principle, each address should be "properly zoned," which - * means that if the address has a zone if and only if has a scope. As such, it - * is a rule that an unscoped (e.g., global) address must never have a zone. - * Even though one could argue that there is always one zone even for global - * scopes, this rule exists for implementation simplicity. Violation of the - * rule will trigger assertions or otherwise result in undesired behavior. - * - * Backward compatibility prevents us from requiring that applications always - * provide properly zoned addresses. We do enforce the rule that the in the - * lwIP link layer (everything below netif->output_ip6() and in particular ND6) - * *all* addresses are properly zoned. Thus, on the output paths down the - * stack, various places deal with the case of addresses that lack a zone. - * Some of them are best-effort for efficiency (e.g. the PCB bind and connect - * API calls' attempts to add missing zones); ultimately the IPv6 output - * handler (@ref ip6_output_if_src) will set a zone if necessary. - * - * Aside from dealing with scoped addresses lacking a zone, a proper IPv6 - * implementation must also ensure that a packet with a scoped source and/or - * destination address does not leave its zone. This is currently implemented - * in the input and forward functions. However, for output, these checks are - * deliberately omitted in order to keep the implementation lightweight. The - * routing algorithm in @ref ip6_route will take decisions such that it will - * not cause zone violations unless the application sets bad addresses, though. - * - * In terms of scoping policy, lwIP implements the default policy from RFC 4007 - * using macros in this file. This policy considers link-local unicast - * addresses and (only) interface-local and link-local multicast addresses as - * having a scope. For all these addresses, the zone is equal to the interface. - * As shown below in this file, it is possible to implement a custom policy. - */ - -/* - * Copyright (c) 2017 The MINIX 3 Project. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: David van Moolenbroek - * - */ -#ifndef LWIP_HDR_IP6_ZONE_H -#define LWIP_HDR_IP6_ZONE_H - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * @defgroup ip6_zones IPv6 Zones - * @ingroup ip6 - * @{ - */ - -#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -/** Identifier for "no zone". */ -#define IP6_NO_ZONE 0 - -#if LWIP_IPV6_SCOPES - -/** Zone initializer for static IPv6 address initialization, including comma. */ -#define IPADDR6_ZONE_INIT , IP6_NO_ZONE - -/** Return the zone index of the given IPv6 address; possibly "no zone". */ -#define ip6_addr_zone(ip6addr) ((ip6addr)->zone) - -/** Does the given IPv6 address have a zone set? (0/1) */ -#define ip6_addr_has_zone(ip6addr) (ip6_addr_zone(ip6addr) != IP6_NO_ZONE) - -/** Set the zone field of an IPv6 address to a particular value. */ -#define ip6_addr_set_zone(ip6addr, zone_idx) ((ip6addr)->zone = (zone_idx)) - -/** Clear the zone field of an IPv6 address, setting it to "no zone". */ -#define ip6_addr_clear_zone(ip6addr) ((ip6addr)->zone = IP6_NO_ZONE) - -/** Copy the zone field from the second IPv6 address to the first one. */ -#define ip6_addr_copy_zone(ip6addr1, ip6addr2) ((ip6addr1).zone = (ip6addr2).zone) - -/** Is the zone field of the given IPv6 address equal to the given zone index? (0/1) */ -#define ip6_addr_equals_zone(ip6addr, zone_idx) ((ip6addr)->zone == (zone_idx)) - -/** Are the zone fields of the given IPv6 addresses equal? (0/1) - * This macro must only be used on IPv6 addresses of the same scope. */ -#define ip6_addr_cmp_zone(ip6addr1, ip6addr2) ((ip6addr1)->zone == (ip6addr2)->zone) - -/** Symbolic constants for the 'type' parameters in some of the macros. - * These exist for efficiency only, allowing the macros to avoid certain tests - * when the address is known not to be of a certain type. Dead code elimination - * will do the rest. IP6_MULTICAST is supported but currently not optimized. - * @see ip6_addr_has_scope, ip6_addr_assign_zone, ip6_addr_lacks_zone. - */ -enum lwip_ipv6_scope_type -{ - /** Unknown */ - IP6_UNKNOWN = 0, - /** Unicast */ - IP6_UNICAST = 1, - /** Multicast */ - IP6_MULTICAST = 2 -}; - -/** IPV6_CUSTOM_SCOPES: together, the following three macro definitions, - * @ref ip6_addr_has_scope, @ref ip6_addr_assign_zone, and - * @ref ip6_addr_test_zone, completely define the lwIP scoping policy. - * The definitions below implement the default policy from RFC 4007 Sec. 6. - * Should an implementation desire to implement a different policy, it can - * define IPV6_CUSTOM_SCOPES to 1 and supply its own definitions for the three - * macros instead. - */ -#ifndef IPV6_CUSTOM_SCOPES -#define IPV6_CUSTOM_SCOPES 0 -#endif /* !IPV6_CUSTOM_SCOPES */ - -#if !IPV6_CUSTOM_SCOPES - -/** - * Determine whether an IPv6 address has a constrained scope, and as such is - * meaningful only if accompanied by a zone index to identify the scope's zone. - * The given address type may be used to eliminate at compile time certain - * checks that will evaluate to false at run time anyway. - * - * This default implementation follows the default model of RFC 4007, where - * only interface-local and link-local scopes are defined. - * - * Even though the unicast loopback address does have an implied link-local - * scope, in this implementation it does not have an explicitly assigned zone - * index. As such it should not be tested for in this macro. - * - * @param ip6addr the IPv6 address (const); only its address part is examined. - * @param type address type; see @ref lwip_ipv6_scope_type. - * @return 1 if the address has a constrained scope, 0 if it does not. - */ -#define ip6_addr_has_scope(ip6addr, type) \ - (ip6_addr_islinklocal(ip6addr) || (((type) != IP6_UNICAST) && \ - (ip6_addr_ismulticast_iflocal(ip6addr) || \ - ip6_addr_ismulticast_linklocal(ip6addr)))) - -/** - * Assign a zone index to an IPv6 address, based on a network interface. If the - * given address has a scope, the assigned zone index is that scope's zone of - * the given netif; otherwise, the assigned zone index is "no zone". - * - * This default implementation follows the default model of RFC 4007, where - * only interface-local and link-local scopes are defined, and the zone index - * of both of those scopes always equals the index of the network interface. - * As such, this default implementation need not distinguish between different - * constrained scopes when assigning the zone. - * - * @param ip6addr the IPv6 address; its address part is examined, and its zone - * index is assigned. - * @param type address type; see @ref lwip_ipv6_scope_type. - * @param netif the network interface (const). - */ -#define ip6_addr_assign_zone(ip6addr, type, netif) \ - (ip6_addr_set_zone((ip6addr), \ - ip6_addr_has_scope((ip6addr), (type)) ? netif_get_index(netif) : 0)) - -/** - * Test whether an IPv6 address is "zone-compatible" with a network interface. - * That is, test whether the network interface is part of the zone associated - * with the address. For efficiency, this macro is only ever called if the - * given address is either scoped or zoned, and thus, it need not test this. - * If an address is scoped but not zoned, or zoned and not scoped, it is - * considered not zone-compatible with any netif. - * - * This default implementation follows the default model of RFC 4007, where - * only interface-local and link-local scopes are defined, and the zone index - * of both of those scopes always equals the index of the network interface. - * As such, there is always only one matching netif for a specific zone index, - * but all call sites of this macro currently support multiple matching netifs - * as well (at no additional expense in the common case). - * - * @param ip6addr the IPv6 address (const). - * @param netif the network interface (const). - * @return 1 if the address is scope-compatible with the netif, 0 if not. - */ -#define ip6_addr_test_zone(ip6addr, netif) \ - (ip6_addr_equals_zone((ip6addr), netif_get_index(netif))) - -#endif /* !IPV6_CUSTOM_SCOPES */ - -/** Does the given IPv6 address have a scope, and as such should also have a - * zone to be meaningful, but does not actually have a zone? (0/1) */ -#define ip6_addr_lacks_zone(ip6addr, type) \ - (!ip6_addr_has_zone(ip6addr) && ip6_addr_has_scope((ip6addr), (type))) - -/** - * Try to select a zone for a scoped address that does not yet have a zone. - * Called from PCB bind and connect routines, for two reasons: 1) to save on - * this (relatively expensive) selection for every individual packet route - * operation and 2) to allow the application to obtain the selected zone from - * the PCB as is customary for e.g. getsockname/getpeername BSD socket calls. - * - * Ideally, callers would always supply a properly zoned address, in which case - * this function would not be needed. It exists both for compatibility with the - * BSD socket API (which accepts zoneless destination addresses) and for - * backward compatibility with pre-scoping lwIP code. - * - * It may be impossible to select a zone, e.g. if there are no netifs. In that - * case, the address's zone field will be left as is. - * - * @param dest the IPv6 address for which to select and set a zone. - * @param src source IPv6 address (const); may be equal to dest. - */ -#define ip6_addr_select_zone(dest, src) do { struct netif *selected_netif; \ - selected_netif = ip6_route((src), (dest)); \ - if (selected_netif != NULL) { \ - ip6_addr_assign_zone((dest), IP6_UNKNOWN, selected_netif); \ - } } while (0) - -/** - * @} - */ - -#else /* LWIP_IPV6_SCOPES */ - -#define IPADDR6_ZONE_INIT -#define ip6_addr_zone(ip6addr) (IP6_NO_ZONE) -#define ip6_addr_has_zone(ip6addr) (0) -#define ip6_addr_set_zone(ip6addr, zone_idx) -#define ip6_addr_clear_zone(ip6addr) -#define ip6_addr_copy_zone(ip6addr1, ip6addr2) -#define ip6_addr_equals_zone(ip6addr, zone_idx) (1) -#define ip6_addr_cmp_zone(ip6addr1, ip6addr2) (1) -#define IPV6_CUSTOM_SCOPES 0 -#define ip6_addr_has_scope(ip6addr, type) (0) -#define ip6_addr_assign_zone(ip6addr, type, netif) -#define ip6_addr_test_zone(ip6addr, netif) (1) -#define ip6_addr_lacks_zone(ip6addr, type) (0) -#define ip6_addr_select_zone(ip6addr, src) - -#endif /* LWIP_IPV6_SCOPES */ - -#if LWIP_IPV6_SCOPES && LWIP_IPV6_SCOPES_DEBUG - -/** Verify that the given IPv6 address is properly zoned. */ -#define IP6_ADDR_ZONECHECK(ip6addr) LWIP_ASSERT("IPv6 zone check failed", \ - ip6_addr_has_scope(ip6addr, IP6_UNKNOWN) == ip6_addr_has_zone(ip6addr)) - -/** Verify that the given IPv6 address is properly zoned for the given netif. */ -#define IP6_ADDR_ZONECHECK_NETIF(ip6addr, netif) LWIP_ASSERT("IPv6 netif zone check failed", \ - ip6_addr_has_scope(ip6addr, IP6_UNKNOWN) ? \ - (ip6_addr_has_zone(ip6addr) && \ - (((netif) == NULL) || ip6_addr_test_zone((ip6addr), (netif)))) : \ - !ip6_addr_has_zone(ip6addr)) - -#else /* LWIP_IPV6_SCOPES && LWIP_IPV6_SCOPES_DEBUG */ - -#define IP6_ADDR_ZONECHECK(ip6addr) -#define IP6_ADDR_ZONECHECK_NETIF(ip6addr, netif) - -#endif /* LWIP_IPV6_SCOPES && LWIP_IPV6_SCOPES_DEBUG */ - -#endif /* LWIP_IPV6 */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_IP6_ZONE_H */ diff --git a/core/c/include/lwip/ip_addr.h b/core/c/include/lwip/ip_addr.h deleted file mode 100755 index f98fa8a..0000000 --- a/core/c/include/lwip/ip_addr.h +++ /dev/null @@ -1,438 +0,0 @@ -/** - * @file - * IP address API (common IPv4 and IPv6) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_IP_ADDR_H -#define LWIP_HDR_IP_ADDR_H - -#include "lwip/opt.h" -#include "lwip/def.h" - -#include "lwip/ip4_addr.h" -#include "lwip/ip6_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** @ingroup ipaddr - * IP address types for use in ip_addr_t.type member. - * @see tcp_new_ip_type(), udp_new_ip_type(), raw_new_ip_type(). - */ -enum lwip_ip_addr_type { - /** IPv4 */ - IPADDR_TYPE_V4 = 0U, - /** IPv6 */ - IPADDR_TYPE_V6 = 6U, - /** IPv4+IPv6 ("dual-stack") */ - IPADDR_TYPE_ANY = 46U -}; - -#if LWIP_IPV4 && LWIP_IPV6 -/** - * @ingroup ipaddr - * A union struct for both IP version's addresses. - * ATTENTION: watch out for its size when adding IPv6 address scope! - */ -typedef struct ip_addr { - union { - ip6_addr_t ip6; - ip4_addr_t ip4; - } u_addr; - /** @ref lwip_ip_addr_type */ - u8_t type; -} ip_addr_t; - -extern const ip_addr_t ip_addr_any_type; - -/** @ingroup ip4addr */ -#define IPADDR4_INIT(u32val) { { { { u32val, 0ul, 0ul, 0ul } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_V4 } -/** @ingroup ip4addr */ -#define IPADDR4_INIT_BYTES(a,b,c,d) IPADDR4_INIT(PP_HTONL(LWIP_MAKEU32(a,b,c,d))) - -/** @ingroup ip6addr */ -#define IPADDR6_INIT(a, b, c, d) { { { { a, b, c, d } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_V6 } -/** @ingroup ip6addr */ -#define IPADDR6_INIT_HOST(a, b, c, d) { { { { PP_HTONL(a), PP_HTONL(b), PP_HTONL(c), PP_HTONL(d) } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_V6 } - -/** @ingroup ipaddr */ -#define IP_IS_ANY_TYPE_VAL(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_ANY) -/** @ingroup ipaddr */ -#define IPADDR_ANY_TYPE_INIT { { { { 0ul, 0ul, 0ul, 0ul } IPADDR6_ZONE_INIT } }, IPADDR_TYPE_ANY } - -/** @ingroup ip4addr */ -#define IP_IS_V4_VAL(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_V4) -/** @ingroup ip6addr */ -#define IP_IS_V6_VAL(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_V6) -/** @ingroup ip4addr */ -#define IP_IS_V4(ipaddr) (((ipaddr) == NULL) || IP_IS_V4_VAL(*(ipaddr))) -/** @ingroup ip6addr */ -#define IP_IS_V6(ipaddr) (((ipaddr) != NULL) && IP_IS_V6_VAL(*(ipaddr))) - -#define IP_SET_TYPE_VAL(ipaddr, iptype) do { (ipaddr).type = (iptype); }while(0) -#define IP_SET_TYPE(ipaddr, iptype) do { if((ipaddr) != NULL) { IP_SET_TYPE_VAL(*(ipaddr), iptype); }}while(0) -#define IP_GET_TYPE(ipaddr) ((ipaddr)->type) - -#define IP_ADDR_RAW_SIZE(ipaddr) (IP_GET_TYPE(&ipaddr) == IPADDR_TYPE_V4 ? sizeof(ip4_addr_t) : sizeof(ip6_addr_t)) - -#define IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ipaddr) (IP_GET_TYPE(&pcb->local_ip) == IP_GET_TYPE(ipaddr)) -#define IP_ADDR_PCB_VERSION_MATCH(pcb, ipaddr) (IP_IS_ANY_TYPE_VAL(pcb->local_ip) || IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ipaddr)) - -/** @ingroup ip6addr - * Convert generic ip address to specific protocol version - */ -#define ip_2_ip6(ipaddr) (&((ipaddr)->u_addr.ip6)) -/** @ingroup ip4addr - * Convert generic ip address to specific protocol version - */ -#define ip_2_ip4(ipaddr) (&((ipaddr)->u_addr.ip4)) - -/** @ingroup ip4addr */ -#define IP_ADDR4(ipaddr,a,b,c,d) do { IP4_ADDR(ip_2_ip4(ipaddr),a,b,c,d); \ - IP_SET_TYPE_VAL(*(ipaddr), IPADDR_TYPE_V4); } while(0) -/** @ingroup ip6addr */ -#define IP_ADDR6(ipaddr,i0,i1,i2,i3) do { IP6_ADDR(ip_2_ip6(ipaddr),i0,i1,i2,i3); \ - IP_SET_TYPE_VAL(*(ipaddr), IPADDR_TYPE_V6); } while(0) -/** @ingroup ip6addr */ -#define IP_ADDR6_HOST(ipaddr,i0,i1,i2,i3) IP_ADDR6(ipaddr,PP_HTONL(i0),PP_HTONL(i1),PP_HTONL(i2),PP_HTONL(i3)) - -#define ip_clear_no4(ipaddr) do { ip_2_ip6(ipaddr)->addr[1] = \ - ip_2_ip6(ipaddr)->addr[2] = \ - ip_2_ip6(ipaddr)->addr[3] = 0; \ - ip6_addr_clear_zone(ip_2_ip6(ipaddr)); }while(0) - -/** @ingroup ipaddr */ -#define ip_addr_copy(dest, src) do{ IP_SET_TYPE_VAL(dest, IP_GET_TYPE(&src)); if(IP_IS_V6_VAL(src)){ \ - ip6_addr_copy(*ip_2_ip6(&(dest)), *ip_2_ip6(&(src))); }else{ \ - ip4_addr_copy(*ip_2_ip4(&(dest)), *ip_2_ip4(&(src))); ip_clear_no4(&dest); }}while(0) -/** @ingroup ip6addr */ -#define ip_addr_copy_from_ip6(dest, src) do{ \ - ip6_addr_copy(*ip_2_ip6(&(dest)), src); IP_SET_TYPE_VAL(dest, IPADDR_TYPE_V6); }while(0) -/** @ingroup ip6addr */ -#define ip_addr_copy_from_ip6_packed(dest, src) do{ \ - ip6_addr_copy_from_packed(*ip_2_ip6(&(dest)), src); IP_SET_TYPE_VAL(dest, IPADDR_TYPE_V6); }while(0) -/** @ingroup ip4addr */ -#define ip_addr_copy_from_ip4(dest, src) do{ \ - ip4_addr_copy(*ip_2_ip4(&(dest)), src); IP_SET_TYPE_VAL(dest, IPADDR_TYPE_V4); ip_clear_no4(&dest); }while(0) -/** @ingroup ip4addr */ -#define ip_addr_set_ip4_u32(ipaddr, val) do{if(ipaddr){ip4_addr_set_u32(ip_2_ip4(ipaddr), val); \ - IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0) -/** @ingroup ip4addr */ -#define ip_addr_set_ip4_u32_val(ipaddr, val) do{ ip4_addr_set_u32(ip_2_ip4(&(ipaddr)), val); \ - IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(&ipaddr); }while(0) -/** @ingroup ip4addr */ -#define ip_addr_get_ip4_u32(ipaddr) (((ipaddr) && IP_IS_V4(ipaddr)) ? \ - ip4_addr_get_u32(ip_2_ip4(ipaddr)) : 0) -/** @ingroup ipaddr */ -#define ip_addr_set(dest, src) do{ IP_SET_TYPE(dest, IP_GET_TYPE(src)); if(IP_IS_V6(src)){ \ - ip6_addr_set(ip_2_ip6(dest), ip_2_ip6(src)); }else{ \ - ip4_addr_set(ip_2_ip4(dest), ip_2_ip4(src)); ip_clear_no4(dest); }}while(0) -/** @ingroup ipaddr */ -#define ip_addr_set_ipaddr(dest, src) ip_addr_set(dest, src) -/** @ingroup ipaddr */ -#define ip_addr_set_zero(ipaddr) do{ \ - ip6_addr_set_zero(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, 0); }while(0) -/** @ingroup ip5addr */ -#define ip_addr_set_zero_ip4(ipaddr) do{ \ - ip6_addr_set_zero(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); }while(0) -/** @ingroup ip6addr */ -#define ip_addr_set_zero_ip6(ipaddr) do{ \ - ip6_addr_set_zero(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V6); }while(0) -/** @ingroup ipaddr */ -#define ip_addr_set_any(is_ipv6, ipaddr) do{if(is_ipv6){ \ - ip6_addr_set_any(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V6); }else{ \ - ip4_addr_set_any(ip_2_ip4(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0) -/** @ingroup ipaddr */ -#define ip_addr_set_any_val(is_ipv6, ipaddr) do{if(is_ipv6){ \ - ip6_addr_set_any(ip_2_ip6(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V6); }else{ \ - ip4_addr_set_any(ip_2_ip4(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(&ipaddr); }}while(0) -/** @ingroup ipaddr */ -#define ip_addr_set_loopback(is_ipv6, ipaddr) do{if(is_ipv6){ \ - ip6_addr_set_loopback(ip_2_ip6(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V6); }else{ \ - ip4_addr_set_loopback(ip_2_ip4(ipaddr)); IP_SET_TYPE(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0) -/** @ingroup ipaddr */ -#define ip_addr_set_loopback_val(is_ipv6, ipaddr) do{if(is_ipv6){ \ - ip6_addr_set_loopback(ip_2_ip6(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V6); }else{ \ - ip4_addr_set_loopback(ip_2_ip4(&(ipaddr))); IP_SET_TYPE_VAL(ipaddr, IPADDR_TYPE_V4); ip_clear_no4(&ipaddr); }}while(0) -/** @ingroup ipaddr */ -#define ip_addr_set_hton(dest, src) do{if(IP_IS_V6(src)){ \ - ip6_addr_set_hton(ip_2_ip6(dest), ip_2_ip6(src)); IP_SET_TYPE(dest, IPADDR_TYPE_V6); }else{ \ - ip4_addr_set_hton(ip_2_ip4(dest), ip_2_ip4(src)); IP_SET_TYPE(dest, IPADDR_TYPE_V4); ip_clear_no4(ipaddr); }}while(0) -/** @ingroup ipaddr */ -#define ip_addr_get_network(target, host, netmask) do{if(IP_IS_V6(host)){ \ - ip4_addr_set_zero(ip_2_ip4(target)); IP_SET_TYPE(target, IPADDR_TYPE_V6); } else { \ - ip4_addr_get_network(ip_2_ip4(target), ip_2_ip4(host), ip_2_ip4(netmask)); IP_SET_TYPE(target, IPADDR_TYPE_V4); }}while(0) -/** @ingroup ipaddr */ -#define ip_addr_netcmp(addr1, addr2, mask) ((IP_IS_V6(addr1) && IP_IS_V6(addr2)) ? \ - 0 : \ - ip4_addr_netcmp(ip_2_ip4(addr1), ip_2_ip4(addr2), mask)) -/** @ingroup ipaddr */ -#define ip_addr_cmp(addr1, addr2) ((IP_GET_TYPE(addr1) != IP_GET_TYPE(addr2)) ? 0 : (IP_IS_V6_VAL(*(addr1)) ? \ - ip6_addr_cmp(ip_2_ip6(addr1), ip_2_ip6(addr2)) : \ - ip4_addr_cmp(ip_2_ip4(addr1), ip_2_ip4(addr2)))) -/** @ingroup ipaddr */ -#define ip_addr_cmp_zoneless(addr1, addr2) ((IP_GET_TYPE(addr1) != IP_GET_TYPE(addr2)) ? 0 : (IP_IS_V6_VAL(*(addr1)) ? \ - ip6_addr_cmp_zoneless(ip_2_ip6(addr1), ip_2_ip6(addr2)) : \ - ip4_addr_cmp(ip_2_ip4(addr1), ip_2_ip4(addr2)))) -/** @ingroup ipaddr */ -#define ip_addr_isany(ipaddr) (((ipaddr) == NULL) ? 1 : ((IP_IS_V6(ipaddr)) ? \ - ip6_addr_isany(ip_2_ip6(ipaddr)) : \ - ip4_addr_isany(ip_2_ip4(ipaddr)))) -/** @ingroup ipaddr */ -#define ip_addr_isany_val(ipaddr) ((IP_IS_V6_VAL(ipaddr)) ? \ - ip6_addr_isany_val(*ip_2_ip6(&(ipaddr))) : \ - ip4_addr_isany_val(*ip_2_ip4(&(ipaddr)))) -/** @ingroup ipaddr */ -#define ip_addr_isbroadcast(ipaddr, netif) ((IP_IS_V6(ipaddr)) ? \ - 0 : \ - ip4_addr_isbroadcast(ip_2_ip4(ipaddr), netif)) -/** @ingroup ipaddr */ -#define ip_addr_ismulticast(ipaddr) ((IP_IS_V6(ipaddr)) ? \ - ip6_addr_ismulticast(ip_2_ip6(ipaddr)) : \ - ip4_addr_ismulticast(ip_2_ip4(ipaddr))) -/** @ingroup ipaddr */ -#define ip_addr_isloopback(ipaddr) ((IP_IS_V6(ipaddr)) ? \ - ip6_addr_isloopback(ip_2_ip6(ipaddr)) : \ - ip4_addr_isloopback(ip_2_ip4(ipaddr))) -/** @ingroup ipaddr */ -#define ip_addr_islinklocal(ipaddr) ((IP_IS_V6(ipaddr)) ? \ - ip6_addr_islinklocal(ip_2_ip6(ipaddr)) : \ - ip4_addr_islinklocal(ip_2_ip4(ipaddr))) -#define ip_addr_debug_print(debug, ipaddr) do { if(IP_IS_V6(ipaddr)) { \ - ip6_addr_debug_print(debug, ip_2_ip6(ipaddr)); } else { \ - ip4_addr_debug_print(debug, ip_2_ip4(ipaddr)); }}while(0) -#define ip_addr_debug_print_val(debug, ipaddr) do { if(IP_IS_V6_VAL(ipaddr)) { \ - ip6_addr_debug_print_val(debug, *ip_2_ip6(&(ipaddr))); } else { \ - ip4_addr_debug_print_val(debug, *ip_2_ip4(&(ipaddr))); }}while(0) -char *ipaddr_ntoa(const ip_addr_t *addr); -char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen); -int ipaddr_aton(const char *cp, ip_addr_t *addr); - -/** @ingroup ipaddr */ -#define IPADDR_STRLEN_MAX IP6ADDR_STRLEN_MAX - -/** @ingroup ipaddr */ -#define ip4_2_ipv4_mapped_ipv6(ip6addr, ip4addr) do { \ - (ip6addr)->addr[3] = (ip4addr)->addr; \ - (ip6addr)->addr[2] = PP_HTONL(0x0000FFFFUL); \ - (ip6addr)->addr[1] = 0; \ - (ip6addr)->addr[0] = 0; \ - ip6_addr_clear_zone(ip6addr); } while(0); - -/** @ingroup ipaddr */ -#define unmap_ipv4_mapped_ipv6(ip4addr, ip6addr) \ - (ip4addr)->addr = (ip6addr)->addr[3]; - -#define IP46_ADDR_ANY(type) (((type) == IPADDR_TYPE_V6)? IP6_ADDR_ANY : IP4_ADDR_ANY) - -#else /* LWIP_IPV4 && LWIP_IPV6 */ - -#define IP_ADDR_PCB_VERSION_MATCH(addr, pcb) 1 -#define IP_ADDR_PCB_VERSION_MATCH_EXACT(pcb, ipaddr) 1 - -#define ip_addr_set_any_val(is_ipv6, ipaddr) ip_addr_set_any(is_ipv6, &(ipaddr)) -#define ip_addr_set_loopback_val(is_ipv6, ipaddr) ip_addr_set_loopback(is_ipv6, &(ipaddr)) - -#if LWIP_IPV4 - -typedef ip4_addr_t ip_addr_t; -#define IPADDR4_INIT(u32val) { u32val } -#define IPADDR4_INIT_BYTES(a,b,c,d) IPADDR4_INIT(PP_HTONL(LWIP_MAKEU32(a,b,c,d))) -#define IP_IS_V4_VAL(ipaddr) 1 -#define IP_IS_V6_VAL(ipaddr) 0 -#define IP_IS_V4(ipaddr) 1 -#define IP_IS_V6(ipaddr) 0 -#define IP_IS_ANY_TYPE_VAL(ipaddr) 0 -#define IP_SET_TYPE_VAL(ipaddr, iptype) -#define IP_SET_TYPE(ipaddr, iptype) -#define IP_GET_TYPE(ipaddr) IPADDR_TYPE_V4 -#define IP_ADDR_RAW_SIZE(ipaddr) sizeof(ip4_addr_t) -#define ip_2_ip4(ipaddr) (ipaddr) -#define IP_ADDR4(ipaddr,a,b,c,d) IP4_ADDR(ipaddr,a,b,c,d) - -#define ip_addr_copy(dest, src) ip4_addr_copy(dest, src) -#define ip_addr_copy_from_ip4(dest, src) ip4_addr_copy(dest, src) -#define ip_addr_set_ip4_u32(ipaddr, val) ip4_addr_set_u32(ip_2_ip4(ipaddr), val) -#define ip_addr_set_ip4_u32_val(ipaddr, val) ip_addr_set_ip4_u32(&(ipaddr), val) -#define ip_addr_get_ip4_u32(ipaddr) ip4_addr_get_u32(ip_2_ip4(ipaddr)) -#define ip_addr_set(dest, src) ip4_addr_set(dest, src) -#define ip_addr_set_ipaddr(dest, src) ip4_addr_set(dest, src) -#define ip_addr_set_zero(ipaddr) ip4_addr_set_zero(ipaddr) -#define ip_addr_set_zero_ip4(ipaddr) ip4_addr_set_zero(ipaddr) -#define ip_addr_set_any(is_ipv6, ipaddr) ip4_addr_set_any(ipaddr) -#define ip_addr_set_loopback(is_ipv6, ipaddr) ip4_addr_set_loopback(ipaddr) -#define ip_addr_set_hton(dest, src) ip4_addr_set_hton(dest, src) -#define ip_addr_get_network(target, host, mask) ip4_addr_get_network(target, host, mask) -#define ip_addr_netcmp(addr1, addr2, mask) ip4_addr_netcmp(addr1, addr2, mask) -#define ip_addr_cmp(addr1, addr2) ip4_addr_cmp(addr1, addr2) -#define ip_addr_isany(ipaddr) ip4_addr_isany(ipaddr) -#define ip_addr_isany_val(ipaddr) ip4_addr_isany_val(ipaddr) -#define ip_addr_isloopback(ipaddr) ip4_addr_isloopback(ipaddr) -#define ip_addr_islinklocal(ipaddr) ip4_addr_islinklocal(ipaddr) -#define ip_addr_isbroadcast(addr, netif) ip4_addr_isbroadcast(addr, netif) -#define ip_addr_ismulticast(ipaddr) ip4_addr_ismulticast(ipaddr) -#define ip_addr_debug_print(debug, ipaddr) ip4_addr_debug_print(debug, ipaddr) -#define ip_addr_debug_print_val(debug, ipaddr) ip4_addr_debug_print_val(debug, ipaddr) -#define ipaddr_ntoa(ipaddr) ip4addr_ntoa(ipaddr) -#define ipaddr_ntoa_r(ipaddr, buf, buflen) ip4addr_ntoa_r(ipaddr, buf, buflen) -#define ipaddr_aton(cp, addr) ip4addr_aton(cp, addr) - -#define IPADDR_STRLEN_MAX IP4ADDR_STRLEN_MAX - -#define IP46_ADDR_ANY(type) (IP4_ADDR_ANY) - -#else /* LWIP_IPV4 */ - -typedef ip6_addr_t ip_addr_t; -#define IPADDR6_INIT(a, b, c, d) { { a, b, c, d } IPADDR6_ZONE_INIT } -#define IPADDR6_INIT_HOST(a, b, c, d) { { PP_HTONL(a), PP_HTONL(b), PP_HTONL(c), PP_HTONL(d) } IPADDR6_ZONE_INIT } -#define IP_IS_V4_VAL(ipaddr) 0 -#define IP_IS_V6_VAL(ipaddr) 1 -#define IP_IS_V4(ipaddr) 0 -#define IP_IS_V6(ipaddr) 1 -#define IP_IS_ANY_TYPE_VAL(ipaddr) 0 -#define IP_SET_TYPE_VAL(ipaddr, iptype) -#define IP_SET_TYPE(ipaddr, iptype) -#define IP_GET_TYPE(ipaddr) IPADDR_TYPE_V6 -#define IP_ADDR_RAW_SIZE(ipaddr) sizeof(ip6_addr_t) -#define ip_2_ip6(ipaddr) (ipaddr) -#define IP_ADDR6(ipaddr,i0,i1,i2,i3) IP6_ADDR(ipaddr,i0,i1,i2,i3) -#define IP_ADDR6_HOST(ipaddr,i0,i1,i2,i3) IP_ADDR6(ipaddr,PP_HTONL(i0),PP_HTONL(i1),PP_HTONL(i2),PP_HTONL(i3)) - -#define ip_addr_copy(dest, src) ip6_addr_copy(dest, src) -#define ip_addr_copy_from_ip6(dest, src) ip6_addr_copy(dest, src) -#define ip_addr_copy_from_ip6_packed(dest, src) ip6_addr_copy_from_packed(dest, src) -#define ip_addr_set(dest, src) ip6_addr_set(dest, src) -#define ip_addr_set_ipaddr(dest, src) ip6_addr_set(dest, src) -#define ip_addr_set_zero(ipaddr) ip6_addr_set_zero(ipaddr) -#define ip_addr_set_zero_ip6(ipaddr) ip6_addr_set_zero(ipaddr) -#define ip_addr_set_any(is_ipv6, ipaddr) ip6_addr_set_any(ipaddr) -#define ip_addr_set_loopback(is_ipv6, ipaddr) ip6_addr_set_loopback(ipaddr) -#define ip_addr_set_hton(dest, src) ip6_addr_set_hton(dest, src) -#define ip_addr_get_network(target, host, mask) ip6_addr_set_zero(target) -#define ip_addr_netcmp(addr1, addr2, mask) 0 -#define ip_addr_cmp(addr1, addr2) ip6_addr_cmp(addr1, addr2) -#define ip_addr_cmp_zoneless(addr1, addr2) ip6_addr_cmp_zoneless(addr1, addr2) -#define ip_addr_isany(ipaddr) ip6_addr_isany(ipaddr) -#define ip_addr_isany_val(ipaddr) ip6_addr_isany_val(ipaddr) -#define ip_addr_isloopback(ipaddr) ip6_addr_isloopback(ipaddr) -#define ip_addr_islinklocal(ipaddr) ip6_addr_islinklocal(ipaddr) -#define ip_addr_isbroadcast(addr, netif) 0 -#define ip_addr_ismulticast(ipaddr) ip6_addr_ismulticast(ipaddr) -#define ip_addr_debug_print(debug, ipaddr) ip6_addr_debug_print(debug, ipaddr) -#define ip_addr_debug_print_val(debug, ipaddr) ip6_addr_debug_print_val(debug, ipaddr) -#define ipaddr_ntoa(ipaddr) ip6addr_ntoa(ipaddr) -#define ipaddr_ntoa_r(ipaddr, buf, buflen) ip6addr_ntoa_r(ipaddr, buf, buflen) -#define ipaddr_aton(cp, addr) ip6addr_aton(cp, addr) - -#define IPADDR_STRLEN_MAX IP6ADDR_STRLEN_MAX - -#define IP46_ADDR_ANY(type) (IP6_ADDR_ANY) - -#endif /* LWIP_IPV4 */ -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - -#if LWIP_IPV4 - -extern const ip_addr_t ip_addr_any; -extern const ip_addr_t ip_addr_broadcast; - -/** - * @ingroup ip4addr - * Can be used as a fixed/const ip_addr_t - * for the IP wildcard. - * Defined to @ref IP4_ADDR_ANY when IPv4 is enabled. - * Defined to @ref IP6_ADDR_ANY in IPv6 only systems. - * Use this if you can handle IPv4 _AND_ IPv6 addresses. - * Use @ref IP4_ADDR_ANY or @ref IP6_ADDR_ANY when the IP - * type matters. - */ -#define IP_ADDR_ANY IP4_ADDR_ANY -/** - * @ingroup ip4addr - * Can be used as a fixed/const ip_addr_t - * for the IPv4 wildcard and the broadcast address - */ -#define IP4_ADDR_ANY (&ip_addr_any) -/** - * @ingroup ip4addr - * Can be used as a fixed/const ip4_addr_t - * for the wildcard and the broadcast address - */ -#define IP4_ADDR_ANY4 (ip_2_ip4(&ip_addr_any)) - -/** @ingroup ip4addr */ -#define IP_ADDR_BROADCAST (&ip_addr_broadcast) -/** @ingroup ip4addr */ -#define IP4_ADDR_BROADCAST (ip_2_ip4(&ip_addr_broadcast)) - -#endif /* LWIP_IPV4*/ - -#if LWIP_IPV6 - -extern const ip_addr_t ip6_addr_any; - -/** - * @ingroup ip6addr - * IP6_ADDR_ANY can be used as a fixed ip_addr_t - * for the IPv6 wildcard address - */ -#define IP6_ADDR_ANY (&ip6_addr_any) -/** - * @ingroup ip6addr - * IP6_ADDR_ANY6 can be used as a fixed ip6_addr_t - * for the IPv6 wildcard address - */ -#define IP6_ADDR_ANY6 (ip_2_ip6(&ip6_addr_any)) - -#if !LWIP_IPV4 -/** IPv6-only configurations */ -#define IP_ADDR_ANY IP6_ADDR_ANY -#endif /* !LWIP_IPV4 */ - -#endif - -#if LWIP_IPV4 && LWIP_IPV6 -/** @ingroup ipaddr */ -#define IP_ANY_TYPE (&ip_addr_any_type) -#else -#define IP_ANY_TYPE IP_ADDR_ANY -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_IP_ADDR_H */ diff --git a/core/c/include/lwip/mem.h b/core/c/include/lwip/mem.h deleted file mode 100755 index 424de91..0000000 --- a/core/c/include/lwip/mem.h +++ /dev/null @@ -1,82 +0,0 @@ -/** - * @file - * Heap API - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_MEM_H -#define LWIP_HDR_MEM_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if MEM_LIBC_MALLOC - -#include "lwip/arch.h" - -typedef size_t mem_size_t; -#define MEM_SIZE_F SZT_F - -#elif MEM_USE_POOLS - -typedef u16_t mem_size_t; -#define MEM_SIZE_F U16_F - -#else - -/* MEM_SIZE would have to be aligned, but using 64000 here instead of - * 65535 leaves some room for alignment... - */ -#if MEM_SIZE > 64000L -typedef u32_t mem_size_t; -#define MEM_SIZE_F U32_F -#else -typedef u16_t mem_size_t; -#define MEM_SIZE_F U16_F -#endif /* MEM_SIZE > 64000 */ -#endif - -void mem_init(void); -void *mem_trim(void *mem, mem_size_t size); -void *mem_malloc(mem_size_t size); -void *mem_calloc(mem_size_t count, mem_size_t size); -void mem_free(void *mem); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_MEM_H */ diff --git a/core/c/include/lwip/memp.h b/core/c/include/lwip/memp.h deleted file mode 100755 index 74ac818..0000000 --- a/core/c/include/lwip/memp.h +++ /dev/null @@ -1,155 +0,0 @@ -/** - * @file - * Memory pool API - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#ifndef LWIP_HDR_MEMP_H -#define LWIP_HDR_MEMP_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* run once with empty definition to handle all custom includes in lwippools.h */ -#define LWIP_MEMPOOL(name,num,size,desc) -#include "lwip/priv/memp_std.h" - -/** Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */ -typedef enum { -#define LWIP_MEMPOOL(name,num,size,desc) MEMP_##name, -#include "lwip/priv/memp_std.h" - MEMP_MAX -} memp_t; - -#include "lwip/priv/memp_priv.h" -#include "lwip/stats.h" - -extern const struct memp_desc* const memp_pools[MEMP_MAX]; - -/** - * @ingroup mempool - * Declare prototype for private memory pool if it is used in multiple files - */ -#define LWIP_MEMPOOL_PROTOTYPE(name) extern const struct memp_desc memp_ ## name - -#if MEMP_MEM_MALLOC - -#define LWIP_MEMPOOL_DECLARE(name,num,size,desc) \ - LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(memp_stats_ ## name) \ - const struct memp_desc memp_ ## name = { \ - DECLARE_LWIP_MEMPOOL_DESC(desc) \ - LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(memp_stats_ ## name) \ - LWIP_MEM_ALIGN_SIZE(size) \ - }; - -#else /* MEMP_MEM_MALLOC */ - -/** - * @ingroup mempool - * Declare a private memory pool - * Private mempools example: - * .h: only when pool is used in multiple .c files: LWIP_MEMPOOL_PROTOTYPE(my_private_pool); - * .c: - * - in global variables section: LWIP_MEMPOOL_DECLARE(my_private_pool, 10, sizeof(foo), "Some description") - * - call ONCE before using pool (e.g. in some init() function): LWIP_MEMPOOL_INIT(my_private_pool); - * - allocate: void* my_new_mem = LWIP_MEMPOOL_ALLOC(my_private_pool); - * - free: LWIP_MEMPOOL_FREE(my_private_pool, my_new_mem); - * - * To relocate a pool, declare it as extern in cc.h. Example for GCC: - * extern u8_t \_\_attribute\_\_((section(".onchip_mem"))) memp_memory_my_private_pool_base[]; - */ -#define LWIP_MEMPOOL_DECLARE(name,num,size,desc) \ - LWIP_DECLARE_MEMORY_ALIGNED(memp_memory_ ## name ## _base, ((num) * (MEMP_SIZE + MEMP_ALIGN_SIZE(size)))); \ - \ - LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(memp_stats_ ## name) \ - \ - static struct memp *memp_tab_ ## name; \ - \ - const struct memp_desc memp_ ## name = { \ - DECLARE_LWIP_MEMPOOL_DESC(desc) \ - LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(memp_stats_ ## name) \ - LWIP_MEM_ALIGN_SIZE(size), \ - (num), \ - memp_memory_ ## name ## _base, \ - &memp_tab_ ## name \ - }; - -#endif /* MEMP_MEM_MALLOC */ - -/** - * @ingroup mempool - * Initialize a private memory pool - */ -#define LWIP_MEMPOOL_INIT(name) memp_init_pool(&memp_ ## name) -/** - * @ingroup mempool - * Allocate from a private memory pool - */ -#define LWIP_MEMPOOL_ALLOC(name) memp_malloc_pool(&memp_ ## name) -/** - * @ingroup mempool - * Free element from a private memory pool - */ -#define LWIP_MEMPOOL_FREE(name, x) memp_free_pool(&memp_ ## name, (x)) - -#if MEM_USE_POOLS -/** This structure is used to save the pool one element came from. - * This has to be defined here as it is required for pool size calculation. */ -struct memp_malloc_helper -{ - memp_t poolnr; -#if MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS) - u16_t size; -#endif /* MEMP_OVERFLOW_CHECK || (LWIP_STATS && MEM_STATS) */ -}; -#endif /* MEM_USE_POOLS */ - -void memp_init(void); - -#if MEMP_OVERFLOW_CHECK -void *memp_malloc_fn(memp_t type, const char* file, const int line); -#define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__) -#else -void *memp_malloc(memp_t type); -#endif -void memp_free(memp_t type, void *mem); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_MEMP_H */ diff --git a/core/c/include/lwip/mld6.h b/core/c/include/lwip/mld6.h deleted file mode 100755 index f8c99d9..0000000 --- a/core/c/include/lwip/mld6.h +++ /dev/null @@ -1,99 +0,0 @@ -/** - * @file - * - * Multicast listener discovery for IPv6. Aims to be compliant with RFC 2710. - * No support for MLDv2. - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#ifndef LWIP_HDR_MLD6_H -#define LWIP_HDR_MLD6_H - -#include "lwip/opt.h" - -#if LWIP_IPV6_MLD && LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/pbuf.h" -#include "lwip/netif.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** MLD group */ -struct mld_group { - /** next link */ - struct mld_group *next; - /** multicast address */ - ip6_addr_t group_address; - /** signifies we were the last person to report */ - u8_t last_reporter_flag; - /** current state of the group */ - u8_t group_state; - /** timer for reporting */ - u16_t timer; - /** counter of simultaneous uses */ - u8_t use; -}; - -#define MLD6_TMR_INTERVAL 100 /* Milliseconds */ - -err_t mld6_stop(struct netif *netif); -void mld6_report_groups(struct netif *netif); -void mld6_tmr(void); -struct mld_group *mld6_lookfor_group(struct netif *ifp, const ip6_addr_t *addr); -void mld6_input(struct pbuf *p, struct netif *inp); -err_t mld6_joingroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr); -err_t mld6_joingroup_netif(struct netif *netif, const ip6_addr_t *groupaddr); -err_t mld6_leavegroup(const ip6_addr_t *srcaddr, const ip6_addr_t *groupaddr); -err_t mld6_leavegroup_netif(struct netif *netif, const ip6_addr_t *groupaddr); - -/** @ingroup mld6 - * Get list head of MLD6 groups for netif. - * Note: The allnodes group IP is NOT in the list, since it must always - * be received for correct IPv6 operation. - * @see @ref netif_set_mld_mac_filter() - */ -#define netif_mld6_data(netif) ((struct mld_group *)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_MLD6)) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6_MLD && LWIP_IPV6 */ - -#endif /* LWIP_HDR_MLD6_H */ diff --git a/core/c/include/lwip/nd6.h b/core/c/include/lwip/nd6.h deleted file mode 100755 index 89137d5..0000000 --- a/core/c/include/lwip/nd6.h +++ /dev/null @@ -1,90 +0,0 @@ -/** - * @file - * - * Neighbor discovery and stateless address autoconfiguration for IPv6. - * Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 - * (Address autoconfiguration). - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#ifndef LWIP_HDR_ND6_H -#define LWIP_HDR_ND6_H - -#include "lwip/opt.h" - -#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/ip6_addr.h" -#include "lwip/err.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** 1 second period */ -#define ND6_TMR_INTERVAL 1000 - -/** Router solicitations are sent in 4 second intervals (see RFC 4861, ch. 6.3.7) */ -#ifndef ND6_RTR_SOLICITATION_INTERVAL -#define ND6_RTR_SOLICITATION_INTERVAL 4000 -#endif - -struct pbuf; -struct netif; - -void nd6_tmr(void); -void nd6_input(struct pbuf *p, struct netif *inp); -void nd6_clear_destination_cache(void); -struct netif *nd6_find_route(const ip6_addr_t *ip6addr); -err_t nd6_get_next_hop_addr_or_queue(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr, const u8_t **hwaddrp); -u16_t nd6_get_destination_mtu(const ip6_addr_t *ip6addr, struct netif *netif); -#if LWIP_ND6_TCP_REACHABILITY_HINTS -void nd6_reachability_hint(const ip6_addr_t *ip6addr); -#endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */ -void nd6_cleanup_netif(struct netif *netif); -#if LWIP_IPV6_MLD -void nd6_adjust_mld_membership(struct netif *netif, s8_t addr_idx, u8_t new_state); -#endif /* LWIP_IPV6_MLD */ -void nd6_restart_netif(struct netif *netif); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6 */ - -#endif /* LWIP_HDR_ND6_H */ diff --git a/core/c/include/lwip/netbuf.h b/core/c/include/lwip/netbuf.h deleted file mode 100755 index e92c934..0000000 --- a/core/c/include/lwip/netbuf.h +++ /dev/null @@ -1,116 +0,0 @@ -/** - * @file - * netbuf API (for netconn API) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_NETBUF_H -#define LWIP_HDR_NETBUF_H - -#include "lwip/opt.h" - -#if LWIP_NETCONN || LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ -/* Note: Netconn API is always available when sockets are enabled - - * sockets are implemented on top of them */ - -#include "lwip/pbuf.h" -#include "lwip/ip_addr.h" -#include "lwip/ip6_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** This netbuf has dest-addr/port set */ -#define NETBUF_FLAG_DESTADDR 0x01 -/** This netbuf includes a checksum */ -#define NETBUF_FLAG_CHKSUM 0x02 - -/** "Network buffer" - contains data and addressing info */ -struct netbuf { - struct pbuf *p, *ptr; - ip_addr_t addr; - u16_t port; -#if LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY - u8_t flags; - u16_t toport_chksum; -#if LWIP_NETBUF_RECVINFO - ip_addr_t toaddr; -#endif /* LWIP_NETBUF_RECVINFO */ -#endif /* LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY */ -}; - -/* Network buffer functions: */ -struct netbuf * netbuf_new (void); -void netbuf_delete (struct netbuf *buf); -void * netbuf_alloc (struct netbuf *buf, u16_t size); -void netbuf_free (struct netbuf *buf); -err_t netbuf_ref (struct netbuf *buf, - const void *dataptr, u16_t size); -void netbuf_chain (struct netbuf *head, struct netbuf *tail); - -err_t netbuf_data (struct netbuf *buf, - void **dataptr, u16_t *len); -s8_t netbuf_next (struct netbuf *buf); -void netbuf_first (struct netbuf *buf); - - -#define netbuf_copy_partial(buf, dataptr, len, offset) \ - pbuf_copy_partial((buf)->p, (dataptr), (len), (offset)) -#define netbuf_copy(buf,dataptr,len) netbuf_copy_partial(buf, dataptr, len, 0) -#define netbuf_take(buf, dataptr, len) pbuf_take((buf)->p, dataptr, len) -#define netbuf_len(buf) ((buf)->p->tot_len) -#define netbuf_fromaddr(buf) (&((buf)->addr)) -#define netbuf_set_fromaddr(buf, fromaddr) ip_addr_set(&((buf)->addr), fromaddr) -#define netbuf_fromport(buf) ((buf)->port) -#if LWIP_NETBUF_RECVINFO -#define netbuf_destaddr(buf) (&((buf)->toaddr)) -#define netbuf_set_destaddr(buf, destaddr) ip_addr_set(&((buf)->toaddr), destaddr) -#if LWIP_CHECKSUM_ON_COPY -#define netbuf_destport(buf) (((buf)->flags & NETBUF_FLAG_DESTADDR) ? (buf)->toport_chksum : 0) -#else /* LWIP_CHECKSUM_ON_COPY */ -#define netbuf_destport(buf) ((buf)->toport_chksum) -#endif /* LWIP_CHECKSUM_ON_COPY */ -#endif /* LWIP_NETBUF_RECVINFO */ -#if LWIP_CHECKSUM_ON_COPY -#define netbuf_set_chksum(buf, chksum) do { (buf)->flags = NETBUF_FLAG_CHKSUM; \ - (buf)->toport_chksum = chksum; } while(0) -#endif /* LWIP_CHECKSUM_ON_COPY */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_NETCONN || LWIP_SOCKET */ - -#endif /* LWIP_HDR_NETBUF_H */ diff --git a/core/c/include/lwip/netdb.h b/core/c/include/lwip/netdb.h deleted file mode 100755 index 6aae914..0000000 --- a/core/c/include/lwip/netdb.h +++ /dev/null @@ -1,150 +0,0 @@ -/** - * @file - * NETDB API (sockets) - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_NETDB_H -#define LWIP_HDR_NETDB_H - -#include "lwip/opt.h" - -#if LWIP_DNS && LWIP_SOCKET - -#include "lwip/arch.h" -#include "lwip/inet.h" -#include "lwip/sockets.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* some rarely used options */ -#ifndef LWIP_DNS_API_DECLARE_H_ERRNO -#define LWIP_DNS_API_DECLARE_H_ERRNO 1 -#endif - -#ifndef LWIP_DNS_API_DEFINE_ERRORS -#define LWIP_DNS_API_DEFINE_ERRORS 1 -#endif - -#ifndef LWIP_DNS_API_DEFINE_FLAGS -#define LWIP_DNS_API_DEFINE_FLAGS 1 -#endif - -#ifndef LWIP_DNS_API_DECLARE_STRUCTS -#define LWIP_DNS_API_DECLARE_STRUCTS 1 -#endif - -#if LWIP_DNS_API_DEFINE_ERRORS -/** Errors used by the DNS API functions, h_errno can be one of them */ -#define EAI_NONAME 200 -#define EAI_SERVICE 201 -#define EAI_FAIL 202 -#define EAI_MEMORY 203 -#define EAI_FAMILY 204 - -#define HOST_NOT_FOUND 210 -#define NO_DATA 211 -#define NO_RECOVERY 212 -#define TRY_AGAIN 213 -#endif /* LWIP_DNS_API_DEFINE_ERRORS */ - -#if LWIP_DNS_API_DEFINE_FLAGS -/* input flags for struct addrinfo */ -#define AI_PASSIVE 0x01 -#define AI_CANONNAME 0x02 -#define AI_NUMERICHOST 0x04 -#define AI_NUMERICSERV 0x08 -#define AI_V4MAPPED 0x10 -#define AI_ALL 0x20 -#define AI_ADDRCONFIG 0x40 -#endif /* LWIP_DNS_API_DEFINE_FLAGS */ - -#if LWIP_DNS_API_DECLARE_STRUCTS -struct hostent { - char *h_name; /* Official name of the host. */ - char **h_aliases; /* A pointer to an array of pointers to alternative host names, - terminated by a null pointer. */ - int h_addrtype; /* Address type. */ - int h_length; /* The length, in bytes, of the address. */ - char **h_addr_list; /* A pointer to an array of pointers to network addresses (in - network byte order) for the host, terminated by a null pointer. */ -#define h_addr h_addr_list[0] /* for backward compatibility */ -}; - -struct addrinfo { - int ai_flags; /* Input flags. */ - int ai_family; /* Address family of socket. */ - int ai_socktype; /* Socket type. */ - int ai_protocol; /* Protocol of socket. */ - socklen_t ai_addrlen; /* Length of socket address. */ - struct sockaddr *ai_addr; /* Socket address of socket. */ - char *ai_canonname; /* Canonical name of service location. */ - struct addrinfo *ai_next; /* Pointer to next in list. */ -}; -#endif /* LWIP_DNS_API_DECLARE_STRUCTS */ - -#define NETDB_ELEM_SIZE (sizeof(struct addrinfo) + sizeof(struct sockaddr_storage) + DNS_MAX_NAME_LENGTH + 1) - -#if LWIP_DNS_API_DECLARE_H_ERRNO -/* application accessible error code set by the DNS API functions */ -extern int h_errno; -#endif /* LWIP_DNS_API_DECLARE_H_ERRNO*/ - -struct hostent *lwip_gethostbyname(const char *name); -int lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf, - size_t buflen, struct hostent **result, int *h_errnop); -void lwip_freeaddrinfo(struct addrinfo *ai); -int lwip_getaddrinfo(const char *nodename, - const char *servname, - const struct addrinfo *hints, - struct addrinfo **res); - -#if LWIP_COMPAT_SOCKETS -/** @ingroup netdbapi */ -#define gethostbyname(name) lwip_gethostbyname(name) -/** @ingroup netdbapi */ -#define gethostbyname_r(name, ret, buf, buflen, result, h_errnop) \ - lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop) -/** @ingroup netdbapi */ -#define freeaddrinfo(addrinfo) lwip_freeaddrinfo(addrinfo) -/** @ingroup netdbapi */ -#define getaddrinfo(nodname, servname, hints, res) \ - lwip_getaddrinfo(nodname, servname, hints, res) -#endif /* LWIP_COMPAT_SOCKETS */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_DNS && LWIP_SOCKET */ - -#endif /* LWIP_HDR_NETDB_H */ diff --git a/core/c/include/lwip/netif.h b/core/c/include/lwip/netif.h deleted file mode 100755 index d3ec064..0000000 --- a/core/c/include/lwip/netif.h +++ /dev/null @@ -1,669 +0,0 @@ -/** - * @file - * netif API (to be used from TCPIP thread) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_NETIF_H -#define LWIP_HDR_NETIF_H - -#include "lwip/opt.h" - -#define ENABLE_LOOPBACK (LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF) - -#include "lwip/err.h" - -#include "lwip/ip_addr.h" - -#include "lwip/def.h" -#include "lwip/pbuf.h" -#include "lwip/stats.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* Throughout this file, IP addresses are expected to be in - * the same byte order as in IP_PCB. */ - -/** Must be the maximum of all used hardware address lengths - across all types of interfaces in use. - This does not have to be changed, normally. */ -#ifndef NETIF_MAX_HWADDR_LEN -#define NETIF_MAX_HWADDR_LEN 6U -#endif - -/** The size of a fully constructed netif name which the - * netif can be identified by in APIs. Composed of - * 2 chars, 3 (max) digits, and 1 \0 - */ -#define NETIF_NAMESIZE 6 - -/** - * @defgroup netif_flags Flags - * @ingroup netif - * @{ - */ - -/** Whether the network interface is 'up'. This is - * a software flag used to control whether this network - * interface is enabled and processes traffic. - * It must be set by the startup code before this netif can be used - * (also for dhcp/autoip). - */ -#define NETIF_FLAG_UP 0x01U -/** If set, the netif has broadcast capability. - * Set by the netif driver in its init function. */ -#define NETIF_FLAG_BROADCAST 0x02U -/** If set, the interface has an active link - * (set by the network interface driver). - * Either set by the netif driver in its init function (if the link - * is up at that time) or at a later point once the link comes up - * (if link detection is supported by the hardware). */ -#define NETIF_FLAG_LINK_UP 0x04U -/** If set, the netif is an ethernet device using ARP. - * Set by the netif driver in its init function. - * Used to check input packet types and use of DHCP. */ -#define NETIF_FLAG_ETHARP 0x08U -/** If set, the netif is an ethernet device. It might not use - * ARP or TCP/IP if it is used for PPPoE only. - */ -#define NETIF_FLAG_ETHERNET 0x10U -/** If set, the netif has IGMP capability. - * Set by the netif driver in its init function. */ -#define NETIF_FLAG_IGMP 0x20U -/** If set, the netif has MLD6 capability. - * Set by the netif driver in its init function. */ -#define NETIF_FLAG_MLD6 0x40U - -/** - * @} - */ - -enum lwip_internal_netif_client_data_index -{ -#if LWIP_IPV4 -#if LWIP_DHCP - LWIP_NETIF_CLIENT_DATA_INDEX_DHCP, -#endif -#if LWIP_AUTOIP - LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP, -#endif -#if LWIP_IGMP - LWIP_NETIF_CLIENT_DATA_INDEX_IGMP, -#endif -#endif /* LWIP_IPV4 */ -#if LWIP_IPV6 -#if LWIP_IPV6_DHCP6 - LWIP_NETIF_CLIENT_DATA_INDEX_DHCP6, -#endif -#if LWIP_IPV6_MLD - LWIP_NETIF_CLIENT_DATA_INDEX_MLD6, -#endif -#endif /* LWIP_IPV6 */ - LWIP_NETIF_CLIENT_DATA_INDEX_MAX -}; - -#if LWIP_CHECKSUM_CTRL_PER_NETIF -#define NETIF_CHECKSUM_GEN_IP 0x0001 -#define NETIF_CHECKSUM_GEN_UDP 0x0002 -#define NETIF_CHECKSUM_GEN_TCP 0x0004 -#define NETIF_CHECKSUM_GEN_ICMP 0x0008 -#define NETIF_CHECKSUM_GEN_ICMP6 0x0010 -#define NETIF_CHECKSUM_CHECK_IP 0x0100 -#define NETIF_CHECKSUM_CHECK_UDP 0x0200 -#define NETIF_CHECKSUM_CHECK_TCP 0x0400 -#define NETIF_CHECKSUM_CHECK_ICMP 0x0800 -#define NETIF_CHECKSUM_CHECK_ICMP6 0x1000 -#define NETIF_CHECKSUM_ENABLE_ALL 0xFFFF -#define NETIF_CHECKSUM_DISABLE_ALL 0x0000 -#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */ - -struct netif; - -/** MAC Filter Actions, these are passed to a netif's igmp_mac_filter or - * mld_mac_filter callback function. */ -enum netif_mac_filter_action { - /** Delete a filter entry */ - NETIF_DEL_MAC_FILTER = 0, - /** Add a filter entry */ - NETIF_ADD_MAC_FILTER = 1 -}; - -/** Function prototype for netif init functions. Set up flags and output/linkoutput - * callback functions in this function. - * - * @param netif The netif to initialize - */ -typedef err_t (*netif_init_fn)(struct netif *netif); -/** Function prototype for netif->input functions. This function is saved as 'input' - * callback function in the netif struct. Call it when a packet has been received. - * - * @param p The received packet, copied into a pbuf - * @param inp The netif which received the packet - * @return ERR_OK if the packet was handled - * != ERR_OK is the packet was NOT handled, in this case, the caller has - * to free the pbuf - */ -typedef err_t (*netif_input_fn)(struct pbuf *p, struct netif *inp); - -#if LWIP_IPV4 -/** Function prototype for netif->output functions. Called by lwIP when a packet - * shall be sent. For ethernet netif, set this to 'etharp_output' and set - * 'linkoutput'. - * - * @param netif The netif which shall send a packet - * @param p The packet to send (p->payload points to IP header) - * @param ipaddr The IP address to which the packet shall be sent - */ -typedef err_t (*netif_output_fn)(struct netif *netif, struct pbuf *p, - const ip4_addr_t *ipaddr); -#endif /* LWIP_IPV4*/ - -#if LWIP_IPV6 -/** Function prototype for netif->output_ip6 functions. Called by lwIP when a packet - * shall be sent. For ethernet netif, set this to 'ethip6_output' and set - * 'linkoutput'. - * - * @param netif The netif which shall send a packet - * @param p The packet to send (p->payload points to IP header) - * @param ipaddr The IPv6 address to which the packet shall be sent - */ -typedef err_t (*netif_output_ip6_fn)(struct netif *netif, struct pbuf *p, - const ip6_addr_t *ipaddr); -#endif /* LWIP_IPV6 */ - -/** Function prototype for netif->linkoutput functions. Only used for ethernet - * netifs. This function is called by ARP when a packet shall be sent. - * - * @param netif The netif which shall send a packet - * @param p The packet to send (raw ethernet packet) - */ -typedef err_t (*netif_linkoutput_fn)(struct netif *netif, struct pbuf *p); -/** Function prototype for netif status- or link-callback functions. */ -typedef void (*netif_status_callback_fn)(struct netif *netif); -#if LWIP_IPV4 && LWIP_IGMP -/** Function prototype for netif igmp_mac_filter functions */ -typedef err_t (*netif_igmp_mac_filter_fn)(struct netif *netif, - const ip4_addr_t *group, enum netif_mac_filter_action action); -#endif /* LWIP_IPV4 && LWIP_IGMP */ -#if LWIP_IPV6 && LWIP_IPV6_MLD -/** Function prototype for netif mld_mac_filter functions */ -typedef err_t (*netif_mld_mac_filter_fn)(struct netif *netif, - const ip6_addr_t *group, enum netif_mac_filter_action action); -#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ - -#if LWIP_DHCP || LWIP_AUTOIP || LWIP_IGMP || LWIP_IPV6_MLD || LWIP_IPV6_DHCP6 || (LWIP_NUM_NETIF_CLIENT_DATA > 0) -#if LWIP_NUM_NETIF_CLIENT_DATA > 0 -u8_t netif_alloc_client_data_id(void); -#endif -/** @ingroup netif_cd - * Set client data. Obtain ID from netif_alloc_client_data_id(). - */ -#define netif_set_client_data(netif, id, data) netif_get_client_data(netif, id) = (data) -/** @ingroup netif_cd - * Get client data. Obtain ID from netif_alloc_client_data_id(). - */ -#define netif_get_client_data(netif, id) (netif)->client_data[(id)] -#endif - -#if (LWIP_IPV4 && LWIP_ARP && (ARP_TABLE_SIZE > 0x7f)) || (LWIP_IPV6 && (LWIP_ND6_NUM_DESTINATIONS > 0x7f)) -typedef u16_t netif_addr_idx_t; -#define NETIF_ADDR_IDX_MAX 0x7FFF -#else -typedef u8_t netif_addr_idx_t; -#define NETIF_ADDR_IDX_MAX 0x7F -#endif - -#if LWIP_NETIF_HWADDRHINT -#define LWIP_NETIF_USE_HINTS 1 -struct netif_hint { - netif_addr_idx_t addr_hint; -}; -#else /* LWIP_NETIF_HWADDRHINT */ -#define LWIP_NETIF_USE_HINTS 0 -#endif /* LWIP_NETIF_HWADDRHINT */ - -/** Generic data structure used for all lwIP network interfaces. - * The following fields should be filled in by the initialization - * function for the device driver: hwaddr_len, hwaddr[], mtu, flags */ -struct netif { -#if !LWIP_SINGLE_NETIF - /** pointer to next in linked list */ - struct netif *next; -#endif - -#if LWIP_IPV4 - /** IP address configuration in network byte order */ - ip_addr_t ip_addr; - ip_addr_t netmask; - ip_addr_t gw; -#endif /* LWIP_IPV4 */ -#if LWIP_IPV6 - /** Array of IPv6 addresses for this netif. */ - ip_addr_t ip6_addr[LWIP_IPV6_NUM_ADDRESSES]; - /** The state of each IPv6 address (Tentative, Preferred, etc). - * @see ip6_addr.h */ - u8_t ip6_addr_state[LWIP_IPV6_NUM_ADDRESSES]; -#if LWIP_IPV6_ADDRESS_LIFETIMES - /** Remaining valid and preferred lifetime of each IPv6 address, in seconds. - * For valid lifetimes, the special value of IP6_ADDR_LIFE_STATIC (0) - * indicates the address is static and has no lifetimes. */ - u32_t ip6_addr_valid_life[LWIP_IPV6_NUM_ADDRESSES]; - u32_t ip6_addr_pref_life[LWIP_IPV6_NUM_ADDRESSES]; -#endif /* LWIP_IPV6_ADDRESS_LIFETIMES */ -#endif /* LWIP_IPV6 */ - /** This function is called by the network device driver - * to pass a packet up the TCP/IP stack. */ - netif_input_fn input; -#if LWIP_IPV4 - /** This function is called by the IP module when it wants - * to send a packet on the interface. This function typically - * first resolves the hardware address, then sends the packet. - * For ethernet physical layer, this is usually etharp_output() */ - netif_output_fn output; -#endif /* LWIP_IPV4 */ - /** This function is called by ethernet_output() when it wants - * to send a packet on the interface. This function outputs - * the pbuf as-is on the link medium. */ - netif_linkoutput_fn linkoutput; -#if LWIP_IPV6 - /** This function is called by the IPv6 module when it wants - * to send a packet on the interface. This function typically - * first resolves the hardware address, then sends the packet. - * For ethernet physical layer, this is usually ethip6_output() */ - netif_output_ip6_fn output_ip6; -#endif /* LWIP_IPV6 */ -#if LWIP_NETIF_STATUS_CALLBACK - /** This function is called when the netif state is set to up or down - */ - netif_status_callback_fn status_callback; -#endif /* LWIP_NETIF_STATUS_CALLBACK */ -#if LWIP_NETIF_LINK_CALLBACK - /** This function is called when the netif link is set to up or down - */ - netif_status_callback_fn link_callback; -#endif /* LWIP_NETIF_LINK_CALLBACK */ -#if LWIP_NETIF_REMOVE_CALLBACK - /** This function is called when the netif has been removed */ - netif_status_callback_fn remove_callback; -#endif /* LWIP_NETIF_REMOVE_CALLBACK */ - /** This field can be set by the device driver and could point - * to state information for the device. */ - void *state; -#ifdef netif_get_client_data - void* client_data[LWIP_NETIF_CLIENT_DATA_INDEX_MAX + LWIP_NUM_NETIF_CLIENT_DATA]; -#endif -#if LWIP_NETIF_HOSTNAME - /* the hostname for this netif, NULL is a valid value */ - const char* hostname; -#endif /* LWIP_NETIF_HOSTNAME */ -#if LWIP_CHECKSUM_CTRL_PER_NETIF - u16_t chksum_flags; -#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF*/ - /** maximum transfer unit (in bytes) */ - u16_t mtu; -#if LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES - /** maximum transfer unit (in bytes), updated by RA */ - u16_t mtu6; -#endif /* LWIP_IPV6 && LWIP_ND6_ALLOW_RA_UPDATES */ - /** link level hardware address of this interface */ - u8_t hwaddr[NETIF_MAX_HWADDR_LEN]; - /** number of bytes used in hwaddr */ - u8_t hwaddr_len; - /** flags (@see @ref netif_flags) */ - u8_t flags; - /** descriptive abbreviation */ - char name[2]; - /** number of this interface. Used for @ref if_api and @ref netifapi_netif, - * as well as for IPv6 zones */ - u8_t num; -#if LWIP_IPV6_AUTOCONFIG - /** is this netif enabled for IPv6 autoconfiguration */ - u8_t ip6_autoconfig_enabled; -#endif /* LWIP_IPV6_AUTOCONFIG */ -#if LWIP_IPV6_SEND_ROUTER_SOLICIT - /** Number of Router Solicitation messages that remain to be sent. */ - u8_t rs_count; -#endif /* LWIP_IPV6_SEND_ROUTER_SOLICIT */ -#if MIB2_STATS - /** link type (from "snmp_ifType" enum from snmp_mib2.h) */ - u8_t link_type; - /** (estimate) link speed */ - u32_t link_speed; - /** timestamp at last change made (up/down) */ - u32_t ts; - /** counters */ - struct stats_mib2_netif_ctrs mib2_counters; -#endif /* MIB2_STATS */ -#if LWIP_IPV4 && LWIP_IGMP - /** This function could be called to add or delete an entry in the multicast - filter table of the ethernet MAC.*/ - netif_igmp_mac_filter_fn igmp_mac_filter; -#endif /* LWIP_IPV4 && LWIP_IGMP */ -#if LWIP_IPV6 && LWIP_IPV6_MLD - /** This function could be called to add or delete an entry in the IPv6 multicast - filter table of the ethernet MAC. */ - netif_mld_mac_filter_fn mld_mac_filter; -#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ -#if LWIP_NETIF_USE_HINTS - struct netif_hint *hints; -#endif /* LWIP_NETIF_USE_HINTS */ -#if ENABLE_LOOPBACK - /* List of packets to be queued for ourselves. */ - struct pbuf *loop_first; - struct pbuf *loop_last; -#if LWIP_LOOPBACK_MAX_PBUFS - u16_t loop_cnt_current; -#endif /* LWIP_LOOPBACK_MAX_PBUFS */ -#endif /* ENABLE_LOOPBACK */ -}; - -#if LWIP_CHECKSUM_CTRL_PER_NETIF -#define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags) do { \ - (netif)->chksum_flags = chksumflags; } while(0) -#define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag) if (((netif) == NULL) || (((netif)->chksum_flags & (chksumflag)) != 0)) -#else /* LWIP_CHECKSUM_CTRL_PER_NETIF */ -#define NETIF_SET_CHECKSUM_CTRL(netif, chksumflags) -#define IF__NETIF_CHECKSUM_ENABLED(netif, chksumflag) -#endif /* LWIP_CHECKSUM_CTRL_PER_NETIF */ - -#if LWIP_SINGLE_NETIF -#define NETIF_FOREACH(netif) if (((netif) = netif_default) != NULL) -#else /* LWIP_SINGLE_NETIF */ -/** The list of network interfaces. */ -extern struct netif *netif_list; -#define NETIF_FOREACH(netif) for ((netif) = netif_list; (netif) != NULL; (netif) = (netif)->next) -#endif /* LWIP_SINGLE_NETIF */ -/** The default network interface. */ -extern struct netif *netif_default; - -void netif_init(void); - -struct netif *netif_add_noaddr(struct netif *netif, void *state, netif_init_fn init, netif_input_fn input); - -#if LWIP_IPV4 -struct netif *netif_add(struct netif *netif, - const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw, - void *state, netif_init_fn init, netif_input_fn input); -void netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, - const ip4_addr_t *gw); -#else /* LWIP_IPV4 */ -struct netif *netif_add(struct netif *netif, void *state, netif_init_fn init, netif_input_fn input); -#endif /* LWIP_IPV4 */ -void netif_remove(struct netif * netif); - -/* Returns a network interface given its name. The name is of the form - "et0", where the first two letters are the "name" field in the - netif structure, and the digit is in the num field in the same - structure. */ -struct netif *netif_find(const char *name); - -void netif_set_default(struct netif *netif); - -#if LWIP_IPV4 -void netif_set_ipaddr(struct netif *netif, const ip4_addr_t *ipaddr); -void netif_set_netmask(struct netif *netif, const ip4_addr_t *netmask); -void netif_set_gw(struct netif *netif, const ip4_addr_t *gw); -/** @ingroup netif_ip4 */ -#define netif_ip4_addr(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->ip_addr))) -/** @ingroup netif_ip4 */ -#define netif_ip4_netmask(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->netmask))) -/** @ingroup netif_ip4 */ -#define netif_ip4_gw(netif) ((const ip4_addr_t*)ip_2_ip4(&((netif)->gw))) -/** @ingroup netif_ip4 */ -#define netif_ip_addr4(netif) ((const ip_addr_t*)&((netif)->ip_addr)) -/** @ingroup netif_ip4 */ -#define netif_ip_netmask4(netif) ((const ip_addr_t*)&((netif)->netmask)) -/** @ingroup netif_ip4 */ -#define netif_ip_gw4(netif) ((const ip_addr_t*)&((netif)->gw)) -#endif /* LWIP_IPV4 */ - -#define netif_set_flags(netif, set_flags) do { (netif)->flags = (u8_t)((netif)->flags | (set_flags)); } while(0) -#define netif_clear_flags(netif, clr_flags) do { (netif)->flags = (u8_t)((netif)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0) -#define netif_is_flag_set(nefif, flag) (((netif)->flags & (flag)) != 0) - -void netif_set_up(struct netif *netif); -void netif_set_down(struct netif *netif); -/** @ingroup netif - * Ask if an interface is up - */ -#define netif_is_up(netif) (((netif)->flags & NETIF_FLAG_UP) ? (u8_t)1 : (u8_t)0) - -#if LWIP_NETIF_STATUS_CALLBACK -void netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback); -#endif /* LWIP_NETIF_STATUS_CALLBACK */ -#if LWIP_NETIF_REMOVE_CALLBACK -void netif_set_remove_callback(struct netif *netif, netif_status_callback_fn remove_callback); -#endif /* LWIP_NETIF_REMOVE_CALLBACK */ - -void netif_set_link_up(struct netif *netif); -void netif_set_link_down(struct netif *netif); -/** Ask if a link is up */ -#define netif_is_link_up(netif) (((netif)->flags & NETIF_FLAG_LINK_UP) ? (u8_t)1 : (u8_t)0) - -#if LWIP_NETIF_LINK_CALLBACK -void netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callback); -#endif /* LWIP_NETIF_LINK_CALLBACK */ - -#if LWIP_NETIF_HOSTNAME -/** @ingroup netif */ -#define netif_set_hostname(netif, name) do { if((netif) != NULL) { (netif)->hostname = name; }}while(0) -/** @ingroup netif */ -#define netif_get_hostname(netif) (((netif) != NULL) ? ((netif)->hostname) : NULL) -#endif /* LWIP_NETIF_HOSTNAME */ - -#if LWIP_IGMP -/** @ingroup netif */ -#define netif_set_igmp_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->igmp_mac_filter = function; }}while(0) -#define netif_get_igmp_mac_filter(netif) (((netif) != NULL) ? ((netif)->igmp_mac_filter) : NULL) -#endif /* LWIP_IGMP */ - -#if LWIP_IPV6 && LWIP_IPV6_MLD -/** @ingroup netif */ -#define netif_set_mld_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->mld_mac_filter = function; }}while(0) -#define netif_get_mld_mac_filter(netif) (((netif) != NULL) ? ((netif)->mld_mac_filter) : NULL) -#define netif_mld_mac_filter(netif, addr, action) do { if((netif) && (netif)->mld_mac_filter) { (netif)->mld_mac_filter((netif), (addr), (action)); }}while(0) -#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ - -#if ENABLE_LOOPBACK -err_t netif_loop_output(struct netif *netif, struct pbuf *p); -void netif_poll(struct netif *netif); -#if !LWIP_NETIF_LOOPBACK_MULTITHREADING -void netif_poll_all(void); -#endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */ -#endif /* ENABLE_LOOPBACK */ - -err_t netif_input(struct pbuf *p, struct netif *inp); - -#if LWIP_IPV6 -/** @ingroup netif_ip6 */ -#define netif_ip_addr6(netif, i) ((const ip_addr_t*)(&((netif)->ip6_addr[i]))) -/** @ingroup netif_ip6 */ -#define netif_ip6_addr(netif, i) ((const ip6_addr_t*)ip_2_ip6(&((netif)->ip6_addr[i]))) -void netif_ip6_addr_set(struct netif *netif, s8_t addr_idx, const ip6_addr_t *addr6); -void netif_ip6_addr_set_parts(struct netif *netif, s8_t addr_idx, u32_t i0, u32_t i1, u32_t i2, u32_t i3); -#define netif_ip6_addr_state(netif, i) ((netif)->ip6_addr_state[i]) -void netif_ip6_addr_set_state(struct netif* netif, s8_t addr_idx, u8_t state); -s8_t netif_get_ip6_addr_match(struct netif *netif, const ip6_addr_t *ip6addr); -void netif_create_ip6_linklocal_address(struct netif *netif, u8_t from_mac_48bit); -err_t netif_add_ip6_address(struct netif *netif, const ip6_addr_t *ip6addr, s8_t *chosen_idx); -#define netif_set_ip6_autoconfig_enabled(netif, action) do { if(netif) { (netif)->ip6_autoconfig_enabled = (action); }}while(0) -#if LWIP_IPV6_ADDRESS_LIFETIMES -#define netif_ip6_addr_valid_life(netif, i) \ - (((netif) != NULL) ? ((netif)->ip6_addr_valid_life[i]) : IP6_ADDR_LIFE_STATIC) -#define netif_ip6_addr_set_valid_life(netif, i, secs) \ - do { if (netif != NULL) { (netif)->ip6_addr_valid_life[i] = (secs); }} while (0) -#define netif_ip6_addr_pref_life(netif, i) \ - (((netif) != NULL) ? ((netif)->ip6_addr_pref_life[i]) : IP6_ADDR_LIFE_STATIC) -#define netif_ip6_addr_set_pref_life(netif, i, secs) \ - do { if (netif != NULL) { (netif)->ip6_addr_pref_life[i] = (secs); }} while (0) -#define netif_ip6_addr_isstatic(netif, i) \ - (netif_ip6_addr_valid_life((netif), (i)) == IP6_ADDR_LIFE_STATIC) -#else /* !LWIP_IPV6_ADDRESS_LIFETIMES */ -#define netif_ip6_addr_isstatic(netif, i) (1) /* all addresses are static */ -#endif /* !LWIP_IPV6_ADDRESS_LIFETIMES */ -#if LWIP_ND6_ALLOW_RA_UPDATES -#define netif_mtu6(netif) ((netif)->mtu6) -#else /* LWIP_ND6_ALLOW_RA_UPDATES */ -#define netif_mtu6(netif) ((netif)->mtu) -#endif /* LWIP_ND6_ALLOW_RA_UPDATES */ -#endif /* LWIP_IPV6 */ - -#if LWIP_NETIF_USE_HINTS -#define NETIF_SET_HINTS(netif, netifhint) (netif)->hints = (netifhint) -#define NETIF_RESET_HINTS(netif) (netif)->hints = NULL -#else /* LWIP_NETIF_USE_HINTS */ -#define NETIF_SET_HINTS(netif, netifhint) -#define NETIF_RESET_HINTS(netif) -#endif /* LWIP_NETIF_USE_HINTS */ - -u8_t netif_name_to_index(const char *name); -char * netif_index_to_name(u8_t idx, char *name); -struct netif* netif_get_by_index(u8_t idx); - -/* Interface indexes always start at 1 per RFC 3493, section 4, num starts at 0 (internal index is 0..254)*/ -#define netif_get_index(netif) ((u8_t)((netif)->num + 1)) -#define NETIF_NO_INDEX (0) - -/** - * @ingroup netif - * Extended netif status callback (NSC) reasons flags. - * May be extended in the future! - */ -typedef u16_t netif_nsc_reason_t; - -/* used for initialization only */ -#define LWIP_NSC_NONE 0x0000 -/** netif was added. arg: NULL. Called AFTER netif was added. */ -#define LWIP_NSC_NETIF_ADDED 0x0001 -/** netif was removed. arg: NULL. Called BEFORE netif is removed. */ -#define LWIP_NSC_NETIF_REMOVED 0x0002 -/** link changed */ -#define LWIP_NSC_LINK_CHANGED 0x0004 -/** netif administrative status changed.\n - * up is called AFTER netif is set up.\n - * down is called BEFORE the netif is actually set down. */ -#define LWIP_NSC_STATUS_CHANGED 0x0008 -/** IPv4 address has changed */ -#define LWIP_NSC_IPV4_ADDRESS_CHANGED 0x0010 -/** IPv4 gateway has changed */ -#define LWIP_NSC_IPV4_GATEWAY_CHANGED 0x0020 -/** IPv4 netmask has changed */ -#define LWIP_NSC_IPV4_NETMASK_CHANGED 0x0040 -/** called AFTER IPv4 address/gateway/netmask changes have been applied */ -#define LWIP_NSC_IPV4_SETTINGS_CHANGED 0x0080 -/** IPv6 address was added */ -#define LWIP_NSC_IPV6_SET 0x0100 -/** IPv6 address state has changed */ -#define LWIP_NSC_IPV6_ADDR_STATE_CHANGED 0x0200 - -/** @ingroup netif - * Argument supplied to netif_ext_callback_fn. - */ -typedef union -{ - /** Args to LWIP_NSC_LINK_CHANGED callback */ - struct link_changed_s - { - /** 1: up; 0: down */ - u8_t state; - } link_changed; - /** Args to LWIP_NSC_STATUS_CHANGED callback */ - struct status_changed_s - { - /** 1: up; 0: down */ - u8_t state; - } status_changed; - /** Args to LWIP_NSC_IPV4_ADDRESS_CHANGED|LWIP_NSC_IPV4_GATEWAY_CHANGED|LWIP_NSC_IPV4_NETMASK_CHANGED|LWIP_NSC_IPV4_SETTINGS_CHANGED callback */ - struct ipv4_changed_s - { - /** Old IPv4 address */ - const ip_addr_t* old_address; - const ip_addr_t* old_netmask; - const ip_addr_t* old_gw; - } ipv4_changed; - /** Args to LWIP_NSC_IPV6_SET callback */ - struct ipv6_set_s - { - /** Index of changed IPv6 address */ - s8_t addr_index; - /** Old IPv6 address */ - const ip_addr_t* old_address; - } ipv6_set; - /** Args to LWIP_NSC_IPV6_ADDR_STATE_CHANGED callback */ - struct ipv6_addr_state_changed_s - { - /** Index of affected IPv6 address */ - s8_t addr_index; - /** Old IPv6 address state */ - u8_t old_state; - /** Affected IPv6 address */ - const ip_addr_t* address; - } ipv6_addr_state_changed; -} netif_ext_callback_args_t; - -/** - * @ingroup netif - * Function used for extended netif status callbacks - * Note: When parsing reason argument, keep in mind that more reasons may be added in the future! - * @param netif netif that is affected by change - * @param reason change reason - * @param args depends on reason, see reason description - */ -typedef void (*netif_ext_callback_fn)(struct netif* netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t* args); - -#if LWIP_NETIF_EXT_STATUS_CALLBACK -struct netif_ext_callback; -typedef struct netif_ext_callback -{ - netif_ext_callback_fn callback_fn; - struct netif_ext_callback* next; -} netif_ext_callback_t; - -#define NETIF_DECLARE_EXT_CALLBACK(name) static netif_ext_callback_t name; -void netif_add_ext_callback(netif_ext_callback_t* callback, netif_ext_callback_fn fn); -void netif_remove_ext_callback(netif_ext_callback_t* callback); -void netif_invoke_ext_callback(struct netif* netif, netif_nsc_reason_t reason, const netif_ext_callback_args_t* args); -#else -#define NETIF_DECLARE_EXT_CALLBACK(name) -#define netif_add_ext_callback(callback, fn) -#define netif_remove_ext_callback(callback) -#define netif_invoke_ext_callback(netif, reason, args) -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_NETIF_H */ diff --git a/core/c/include/lwip/netifapi.h b/core/c/include/lwip/netifapi.h deleted file mode 100755 index 5bbd8f8..0000000 --- a/core/c/include/lwip/netifapi.h +++ /dev/null @@ -1,161 +0,0 @@ -/** - * @file - * netif API (to be used from non-TCPIP threads) - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ -#ifndef LWIP_HDR_NETIFAPI_H -#define LWIP_HDR_NETIFAPI_H - -#include "lwip/opt.h" - -#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/sys.h" -#include "lwip/netif.h" -#include "lwip/dhcp.h" -#include "lwip/autoip.h" -#include "lwip/priv/tcpip_priv.h" -#include "lwip/priv/api_msg.h" -#include "lwip/prot/ethernet.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* API for application */ -#if LWIP_ARP && LWIP_IPV4 -/* Used for netfiapi_arp_* APIs */ -enum netifapi_arp_entry { - NETIFAPI_ARP_PERM /* Permanent entry */ - /* Other entry types can be added here */ -}; - -/** @ingroup netifapi_arp */ -err_t netifapi_arp_add(const ip4_addr_t *ipaddr, struct eth_addr *ethaddr, enum netifapi_arp_entry type); -/** @ingroup netifapi_arp */ -err_t netifapi_arp_remove(const ip4_addr_t *ipaddr, enum netifapi_arp_entry type); -#endif /* LWIP_ARP && LWIP_IPV4 */ - -err_t netifapi_netif_add(struct netif *netif, -#if LWIP_IPV4 - const ip4_addr_t *ipaddr, const ip4_addr_t *netmask, const ip4_addr_t *gw, -#endif /* LWIP_IPV4 */ - void *state, netif_init_fn init, netif_input_fn input); - -#if LWIP_IPV4 -err_t netifapi_netif_set_addr(struct netif *netif, const ip4_addr_t *ipaddr, - const ip4_addr_t *netmask, const ip4_addr_t *gw); -#endif /* LWIP_IPV4*/ - -err_t netifapi_netif_common(struct netif *netif, netifapi_void_fn voidfunc, - netifapi_errt_fn errtfunc); - -/** @ingroup netifapi_netif */ -err_t netifapi_netif_name_to_index(const char *name, u8_t *index); -/** @ingroup netifapi_netif */ -err_t netifapi_netif_index_to_name(u8_t index, char *name); - -/** @ingroup netifapi_netif - * @see netif_remove() - */ -#define netifapi_netif_remove(n) netifapi_netif_common(n, netif_remove, NULL) -/** @ingroup netifapi_netif - * @see netif_set_up() - */ -#define netifapi_netif_set_up(n) netifapi_netif_common(n, netif_set_up, NULL) -/** @ingroup netifapi_netif - * @see netif_set_down() - */ -#define netifapi_netif_set_down(n) netifapi_netif_common(n, netif_set_down, NULL) -/** @ingroup netifapi_netif - * @see netif_set_default() - */ -#define netifapi_netif_set_default(n) netifapi_netif_common(n, netif_set_default, NULL) -/** @ingroup netifapi_netif - * @see netif_set_link_up() - */ -#define netifapi_netif_set_link_up(n) netifapi_netif_common(n, netif_set_link_up, NULL) -/** @ingroup netifapi_netif - * @see netif_set_link_down() - */ -#define netifapi_netif_set_link_down(n) netifapi_netif_common(n, netif_set_link_down, NULL) - -/** - * @defgroup netifapi_dhcp4 DHCPv4 - * @ingroup netifapi - * To be called from non-TCPIP threads - */ -/** @ingroup netifapi_dhcp4 - * @see dhcp_start() - */ -#define netifapi_dhcp_start(n) netifapi_netif_common(n, NULL, dhcp_start) -/** - * @ingroup netifapi_dhcp4 - * @deprecated Use netifapi_dhcp_release_and_stop() instead. - */ -#define netifapi_dhcp_stop(n) netifapi_netif_common(n, dhcp_stop, NULL) -/** @ingroup netifapi_dhcp4 - * @see dhcp_inform() - */ -#define netifapi_dhcp_inform(n) netifapi_netif_common(n, dhcp_inform, NULL) -/** @ingroup netifapi_dhcp4 - * @see dhcp_renew() - */ -#define netifapi_dhcp_renew(n) netifapi_netif_common(n, NULL, dhcp_renew) -/** - * @ingroup netifapi_dhcp4 - * @deprecated Use netifapi_dhcp_release_and_stop() instead. - */ -#define netifapi_dhcp_release(n) netifapi_netif_common(n, NULL, dhcp_release) -/** @ingroup netifapi_dhcp4 - * @see dhcp_release_and_stop() - */ -#define netifapi_dhcp_release_and_stop(n) netifapi_netif_common(n, dhcp_release_and_stop, NULL) - -/** - * @defgroup netifapi_autoip AUTOIP - * @ingroup netifapi - * To be called from non-TCPIP threads - */ -/** @ingroup netifapi_autoip - * @see autoip_start() - */ -#define netifapi_autoip_start(n) netifapi_netif_common(n, NULL, autoip_start) -/** @ingroup netifapi_autoip - * @see autoip_stop() - */ -#define netifapi_autoip_stop(n) netifapi_netif_common(n, NULL, autoip_stop) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_NETIF_API */ - -#endif /* LWIP_HDR_NETIFAPI_H */ diff --git a/core/c/include/lwip/opt.h b/core/c/include/lwip/opt.h deleted file mode 100755 index bb6c33d..0000000 --- a/core/c/include/lwip/opt.h +++ /dev/null @@ -1,3519 +0,0 @@ -/** - * @file - * - * lwIP Options Configuration - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -/* - * NOTE: || defined __DOXYGEN__ is a workaround for doxygen bug - - * without this, doxygen does not see the actual #define - */ - -#if !defined LWIP_HDR_OPT_H -#define LWIP_HDR_OPT_H - -/* - * Include user defined options first. Anything not defined in these files - * will be set to standard values. Override anything you don't like! - */ -#include "lwipopts.h" -#include "lwip/debug.h" - -/** - * @defgroup lwip_opts Options (lwipopts.h) - * @ingroup lwip - * - * @defgroup lwip_opts_debug Debugging - * @ingroup lwip_opts - * - * @defgroup lwip_opts_infrastructure Infrastructure - * @ingroup lwip_opts - * - * @defgroup lwip_opts_callback Callback-style APIs - * @ingroup lwip_opts - * - * @defgroup lwip_opts_threadsafe_apis Thread-safe APIs - * @ingroup lwip_opts - */ - - /* - ------------------------------------ - -------------- NO SYS -------------- - ------------------------------------ -*/ -/** - * @defgroup lwip_opts_nosys NO_SYS - * @ingroup lwip_opts_infrastructure - * @{ - */ -/** - * NO_SYS==1: Use lwIP without OS-awareness (no thread, semaphores, mutexes or - * mboxes). This means threaded APIs cannot be used (socket, netconn, - * i.e. everything in the 'api' folder), only the callback-style raw API is - * available (and you have to watch out for yourself that you don't access - * lwIP functions/structures from more than one context at a time!) - */ -#if !defined NO_SYS || defined __DOXYGEN__ -#define NO_SYS 0 -#endif -/** - * @} - */ - -/** - * @defgroup lwip_opts_timers Timers - * @ingroup lwip_opts_infrastructure - * @{ - */ -/** - * LWIP_TIMERS==0: Drop support for sys_timeout and lwip-internal cyclic timers. - * (the array of lwip-internal cyclic timers is still provided) - * (check NO_SYS_NO_TIMERS for compatibility to old versions) - */ -#if !defined LWIP_TIMERS || defined __DOXYGEN__ -#ifdef NO_SYS_NO_TIMERS -#define LWIP_TIMERS (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS)) -#else -#define LWIP_TIMERS 1 -#endif -#endif - -/** - * LWIP_TIMERS_CUSTOM==1: Provide your own timer implementation. - * Function prototypes in timeouts.h and the array of lwip-internal cyclic timers - * are still included, but the implementation is not. The following functions - * will be required: sys_timeouts_init(), sys_timeout(), sys_untimeout(), - * sys_timeouts_mbox_fetch() - */ -#if !defined LWIP_TIMERS_CUSTOM || defined __DOXYGEN__ -#define LWIP_TIMERS_CUSTOM 0 -#endif -/** - * @} - */ - -/** - * @defgroup lwip_opts_memcpy memcpy - * @ingroup lwip_opts_infrastructure - * @{ - */ -/** - * MEMCPY: override this if you have a faster implementation at hand than the - * one included in your C library - */ -#if !defined MEMCPY || defined __DOXYGEN__ -#define MEMCPY(dst,src,len) memcpy(dst,src,len) -#endif - -/** - * SMEMCPY: override this with care! Some compilers (e.g. gcc) can inline a - * call to memcpy() if the length is known at compile time and is small. - */ -#if !defined SMEMCPY || defined __DOXYGEN__ -#define SMEMCPY(dst,src,len) memcpy(dst,src,len) -#endif - -/** - * MEMMOVE: override this if you have a faster implementation at hand than the - * one included in your C library. lwIP currently uses MEMMOVE only when IPv6 - * fragmentation support is enabled. - */ -#if !defined MEMMOVE || defined __DOXYGEN__ -#define MEMMOVE(dst,src,len) memmove(dst,src,len) -#endif -/** - * @} - */ - -/* - ------------------------------------ - ----------- Core locking ----------- - ------------------------------------ -*/ -/** - * @defgroup lwip_opts_lock Core locking and MPU - * @ingroup lwip_opts_infrastructure - * @{ - */ -/** - * LWIP_MPU_COMPATIBLE: enables special memory management mechanism - * which makes lwip able to work on MPU (Memory Protection Unit) system - * by not passing stack-pointers to other threads - * (this decreases performance as memory is allocated from pools instead - * of keeping it on the stack) - */ -#if !defined LWIP_MPU_COMPATIBLE || defined __DOXYGEN__ -#define LWIP_MPU_COMPATIBLE 0 -#endif - -/** - * LWIP_TCPIP_CORE_LOCKING - * Creates a global mutex that is held during TCPIP thread operations. - * Can be locked by client code to perform lwIP operations without changing - * into TCPIP thread using callbacks. See LOCK_TCPIP_CORE() and - * UNLOCK_TCPIP_CORE(). - * Your system should provide mutexes supporting priority inversion to use this. - */ -#if !defined LWIP_TCPIP_CORE_LOCKING || defined __DOXYGEN__ -#define LWIP_TCPIP_CORE_LOCKING 1 -#endif - -/** - * LWIP_TCPIP_CORE_LOCKING_INPUT: when LWIP_TCPIP_CORE_LOCKING is enabled, - * this lets tcpip_input() grab the mutex for input packets as well, - * instead of allocating a message and passing it to tcpip_thread. - * - * ATTENTION: this does not work when tcpip_input() is called from - * interrupt context! - */ -#if !defined LWIP_TCPIP_CORE_LOCKING_INPUT || defined __DOXYGEN__ -#define LWIP_TCPIP_CORE_LOCKING_INPUT 0 -#endif - -/** - * SYS_LIGHTWEIGHT_PROT==1: enable inter-task protection (and task-vs-interrupt - * protection) for certain critical regions during buffer allocation, deallocation - * and memory allocation and deallocation. - * ATTENTION: This is required when using lwIP from more than one context! If - * you disable this, you must be sure what you are doing! - */ -#if !defined SYS_LIGHTWEIGHT_PROT || defined __DOXYGEN__ -#define SYS_LIGHTWEIGHT_PROT 1 -#endif - -/** - * Macro/function to check whether lwIP's threading/locking - * requirements are satisfied during current function call. - * This macro usually calls a function that is implemented in the OS-dependent - * sys layer and performs the following checks: - * - Not in ISR (this should be checked for NO_SYS==1, too!) - * - If @ref LWIP_TCPIP_CORE_LOCKING = 1: TCPIP core lock is held - * - If @ref LWIP_TCPIP_CORE_LOCKING = 0: function is called from TCPIP thread - * @see @ref multithreading - */ -#if !defined LWIP_ASSERT_CORE_LOCKED || defined __DOXYGEN__ -#define LWIP_ASSERT_CORE_LOCKED() -#endif - -/** - * Called as first thing in the lwIP TCPIP thread. Can be used in conjunction - * with @ref LWIP_ASSERT_CORE_LOCKED to check core locking. - * @see @ref multithreading - */ -#if !defined LWIP_MARK_TCPIP_THREAD || defined __DOXYGEN__ -#define LWIP_MARK_TCPIP_THREAD() -#endif -/** - * @} - */ - -/* - ------------------------------------ - ---------- Memory options ---------- - ------------------------------------ -*/ -/** - * @defgroup lwip_opts_mem Heap and memory pools - * @ingroup lwip_opts_infrastructure - * @{ - */ -/** - * MEM_LIBC_MALLOC==1: Use malloc/free/realloc provided by your C-library - * instead of the lwip internal allocator. Can save code size if you - * already use it. - */ -#if !defined MEM_LIBC_MALLOC || defined __DOXYGEN__ -#define MEM_LIBC_MALLOC 0 -#endif - -/** - * MEMP_MEM_MALLOC==1: Use mem_malloc/mem_free instead of the lwip pool allocator. - * Especially useful with MEM_LIBC_MALLOC but handle with care regarding execution - * speed (heap alloc can be much slower than pool alloc) and usage from interrupts - * (especially if your netif driver allocates PBUF_POOL pbufs for received frames - * from interrupt)! - * ATTENTION: Currently, this uses the heap for ALL pools (also for private pools, - * not only for internal pools defined in memp_std.h)! - */ -#if !defined MEMP_MEM_MALLOC || defined __DOXYGEN__ -#define MEMP_MEM_MALLOC 0 -#endif - -/** - * MEMP_MEM_INIT==1: Force use of memset to initialize pool memory. - * Useful if pool are moved in uninitialized section of memory. This will ensure - * default values in pcbs struct are well initialized in all conditions. - */ -#if !defined MEMP_MEM_INIT || defined __DOXYGEN__ -#define MEMP_MEM_INIT 0 -#endif - -/** - * MEM_ALIGNMENT: should be set to the alignment of the CPU - * 4 byte alignment -> \#define MEM_ALIGNMENT 4 - * 2 byte alignment -> \#define MEM_ALIGNMENT 2 - */ -#if !defined MEM_ALIGNMENT || defined __DOXYGEN__ -#define MEM_ALIGNMENT 1 -#endif - -/** - * MEM_SIZE: the size of the heap memory. If the application will send - * a lot of data that needs to be copied, this should be set high. - */ -#if !defined MEM_SIZE || defined __DOXYGEN__ -#define MEM_SIZE 1600 -#endif - -/** - * MEMP_OVERFLOW_CHECK: memp overflow protection reserves a configurable - * amount of bytes before and after each memp element in every pool and fills - * it with a prominent default value. - * MEMP_OVERFLOW_CHECK == 0 no checking - * MEMP_OVERFLOW_CHECK == 1 checks each element when it is freed - * MEMP_OVERFLOW_CHECK >= 2 checks each element in every pool every time - * memp_malloc() or memp_free() is called (useful but slow!) - */ -#if !defined MEMP_OVERFLOW_CHECK || defined __DOXYGEN__ -#define MEMP_OVERFLOW_CHECK 0 -#endif - -/** - * MEMP_SANITY_CHECK==1: run a sanity check after each memp_free() to make - * sure that there are no cycles in the linked lists. - */ -#if !defined MEMP_SANITY_CHECK || defined __DOXYGEN__ -#define MEMP_SANITY_CHECK 0 -#endif - -/** - * MEM_OVERFLOW_CHECK: mem overflow protection reserves a configurable - * amount of bytes before and after each heap allocation chunk and fills - * it with a prominent default value. - * MEM_OVERFLOW_CHECK == 0 no checking - * MEM_OVERFLOW_CHECK == 1 checks each element when it is freed - * MEM_OVERFLOW_CHECK >= 2 checks all heap elements every time - * mem_malloc() or mem_free() is called (useful but slow!) - */ -#if !defined MEM_OVERFLOW_CHECK || defined __DOXYGEN__ -#define MEM_OVERFLOW_CHECK 0 -#endif - -/** - * MEM_SANITY_CHECK==1: run a sanity check after each mem_free() to make - * sure that the linked list of heap elements is not corrupted. - */ -#if !defined MEM_SANITY_CHECK || defined __DOXYGEN__ -#define MEM_SANITY_CHECK 0 -#endif - -/** - * MEM_USE_POOLS==1: Use an alternative to malloc() by allocating from a set - * of memory pools of various sizes. When mem_malloc is called, an element of - * the smallest pool that can provide the length needed is returned. - * To use this, MEMP_USE_CUSTOM_POOLS also has to be enabled. - */ -#if !defined MEM_USE_POOLS || defined __DOXYGEN__ -#define MEM_USE_POOLS 0 -#endif - -/** - * MEM_USE_POOLS_TRY_BIGGER_POOL==1: if one malloc-pool is empty, try the next - * bigger pool - WARNING: THIS MIGHT WASTE MEMORY but it can make a system more - * reliable. */ -#if !defined MEM_USE_POOLS_TRY_BIGGER_POOL || defined __DOXYGEN__ -#define MEM_USE_POOLS_TRY_BIGGER_POOL 0 -#endif - -/** - * MEMP_USE_CUSTOM_POOLS==1: whether to include a user file lwippools.h - * that defines additional pools beyond the "standard" ones required - * by lwIP. If you set this to 1, you must have lwippools.h in your - * include path somewhere. - */ -#if !defined MEMP_USE_CUSTOM_POOLS || defined __DOXYGEN__ -#define MEMP_USE_CUSTOM_POOLS 0 -#endif - -/** - * Set this to 1 if you want to free PBUF_RAM pbufs (or call mem_free()) from - * interrupt context (or another context that doesn't allow waiting for a - * semaphore). - * If set to 1, mem_malloc will be protected by a semaphore and SYS_ARCH_PROTECT, - * while mem_free will only use SYS_ARCH_PROTECT. mem_malloc SYS_ARCH_UNPROTECTs - * with each loop so that mem_free can run. - * - * ATTENTION: As you can see from the above description, this leads to dis-/ - * enabling interrupts often, which can be slow! Also, on low memory, mem_malloc - * can need longer. - * - * If you don't want that, at least for NO_SYS=0, you can still use the following - * functions to enqueue a deallocation call which then runs in the tcpip_thread - * context: - * - pbuf_free_callback(p); - * - mem_free_callback(m); - */ -#if !defined LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT || defined __DOXYGEN__ -#define LWIP_ALLOW_MEM_FREE_FROM_OTHER_CONTEXT 0 -#endif -/** - * @} - */ - -/* - ------------------------------------------------ - ---------- Internal Memory Pool Sizes ---------- - ------------------------------------------------ -*/ -/** - * @defgroup lwip_opts_memp Internal memory pools - * @ingroup lwip_opts_infrastructure - * @{ - */ -/** - * MEMP_NUM_PBUF: the number of memp struct pbufs (used for PBUF_ROM and PBUF_REF). - * If the application sends a lot of data out of ROM (or other static memory), - * this should be set high. - */ -#if !defined MEMP_NUM_PBUF || defined __DOXYGEN__ -#define MEMP_NUM_PBUF 16 -#endif - -/** - * MEMP_NUM_RAW_PCB: Number of raw connection PCBs - * (requires the LWIP_RAW option) - */ -#if !defined MEMP_NUM_RAW_PCB || defined __DOXYGEN__ -#define MEMP_NUM_RAW_PCB 4 -#endif - -/** - * MEMP_NUM_UDP_PCB: the number of UDP protocol control blocks. One - * per active UDP "connection". - * (requires the LWIP_UDP option) - */ -#if !defined MEMP_NUM_UDP_PCB || defined __DOXYGEN__ -#define MEMP_NUM_UDP_PCB 4 -#endif - -/** - * MEMP_NUM_TCP_PCB: the number of simultaneously active TCP connections. - * (requires the LWIP_TCP option) - */ -#if !defined MEMP_NUM_TCP_PCB || defined __DOXYGEN__ -#define MEMP_NUM_TCP_PCB 5 -#endif - -/** - * MEMP_NUM_TCP_PCB_LISTEN: the number of listening TCP connections. - * (requires the LWIP_TCP option) - */ -#if !defined MEMP_NUM_TCP_PCB_LISTEN || defined __DOXYGEN__ -#define MEMP_NUM_TCP_PCB_LISTEN 8 -#endif - -/** - * MEMP_NUM_TCP_SEG: the number of simultaneously queued TCP segments. - * (requires the LWIP_TCP option) - */ -#if !defined MEMP_NUM_TCP_SEG || defined __DOXYGEN__ -#define MEMP_NUM_TCP_SEG 16 -#endif - -/** - * MEMP_NUM_ALTCP_PCB: the number of simultaneously active altcp layer pcbs. - * (requires the LWIP_ALTCP option) - * Connections with multiple layers require more than one altcp_pcb (e.g. TLS - * over TCP requires 2 altcp_pcbs, one for TLS and one for TCP). - */ -#if !defined MEMP_NUM_ALTCP_PCB || defined __DOXYGEN__ -#define MEMP_NUM_ALTCP_PCB MEMP_NUM_TCP_PCB -#endif - -/** - * MEMP_NUM_REASSDATA: the number of IP packets simultaneously queued for - * reassembly (whole packets, not fragments!) - */ -#if !defined MEMP_NUM_REASSDATA || defined __DOXYGEN__ -#define MEMP_NUM_REASSDATA 5 -#endif - -/** - * MEMP_NUM_FRAG_PBUF: the number of IP fragments simultaneously sent - * (fragments, not whole packets!). - * This is only used with LWIP_NETIF_TX_SINGLE_PBUF==0 and only has to be > 1 - * with DMA-enabled MACs where the packet is not yet sent when netif->output - * returns. - */ -#if !defined MEMP_NUM_FRAG_PBUF || defined __DOXYGEN__ -#define MEMP_NUM_FRAG_PBUF 15 -#endif - -/** - * MEMP_NUM_ARP_QUEUE: the number of simultaneously queued outgoing - * packets (pbufs) that are waiting for an ARP request (to resolve - * their destination address) to finish. - * (requires the ARP_QUEUEING option) - */ -#if !defined MEMP_NUM_ARP_QUEUE || defined __DOXYGEN__ -#define MEMP_NUM_ARP_QUEUE 30 -#endif - -/** - * MEMP_NUM_IGMP_GROUP: The number of multicast groups whose network interfaces - * can be members at the same time (one per netif - allsystems group -, plus one - * per netif membership). - * (requires the LWIP_IGMP option) - */ -#if !defined MEMP_NUM_IGMP_GROUP || defined __DOXYGEN__ -#define MEMP_NUM_IGMP_GROUP 8 -#endif - -/** - * The number of sys timeouts used by the core stack (not apps) - * The default number of timeouts is calculated here for all enabled modules. - */ -#define LWIP_NUM_SYS_TIMEOUT_INTERNAL (LWIP_TCP + IP_REASSEMBLY + LWIP_ARP + (2*LWIP_DHCP) + LWIP_AUTOIP + LWIP_IGMP + LWIP_DNS + PPP_NUM_TIMEOUTS + (LWIP_IPV6 * (1 + LWIP_IPV6_REASS + LWIP_IPV6_MLD))) - -/** - * MEMP_NUM_SYS_TIMEOUT: the number of simultaneously active timeouts. - * The default number of timeouts is calculated here for all enabled modules. - * The formula expects settings to be either '0' or '1'. - */ -#if !defined MEMP_NUM_SYS_TIMEOUT || defined __DOXYGEN__ -#define MEMP_NUM_SYS_TIMEOUT LWIP_NUM_SYS_TIMEOUT_INTERNAL -#endif - -/** - * MEMP_NUM_NETBUF: the number of struct netbufs. - * (only needed if you use the sequential API, like api_lib.c) - */ -#if !defined MEMP_NUM_NETBUF || defined __DOXYGEN__ -#define MEMP_NUM_NETBUF 2 -#endif - -/** - * MEMP_NUM_NETCONN: the number of struct netconns. - * (only needed if you use the sequential API, like api_lib.c) - */ -#if !defined MEMP_NUM_NETCONN || defined __DOXYGEN__ -#define MEMP_NUM_NETCONN 4 -#endif - -/** - * MEMP_NUM_SELECT_CB: the number of struct lwip_select_cb. - * (Only needed if you have LWIP_MPU_COMPATIBLE==1 and use the socket API. - * In that case, you need one per thread calling lwip_select.) - */ -#if !defined MEMP_NUM_SELECT_CB || defined __DOXYGEN__ -#define MEMP_NUM_SELECT_CB 4 -#endif - -/** - * MEMP_NUM_TCPIP_MSG_API: the number of struct tcpip_msg, which are used - * for callback/timeout API communication. - * (only needed if you use tcpip.c) - */ -#if !defined MEMP_NUM_TCPIP_MSG_API || defined __DOXYGEN__ -#define MEMP_NUM_TCPIP_MSG_API 8 -#endif - -/** - * MEMP_NUM_TCPIP_MSG_INPKT: the number of struct tcpip_msg, which are used - * for incoming packets. - * (only needed if you use tcpip.c) - */ -#if !defined MEMP_NUM_TCPIP_MSG_INPKT || defined __DOXYGEN__ -#define MEMP_NUM_TCPIP_MSG_INPKT 8 -#endif - -/** - * MEMP_NUM_NETDB: the number of concurrently running lwip_addrinfo() calls - * (before freeing the corresponding memory using lwip_freeaddrinfo()). - */ -#if !defined MEMP_NUM_NETDB || defined __DOXYGEN__ -#define MEMP_NUM_NETDB 1 -#endif - -/** - * MEMP_NUM_LOCALHOSTLIST: the number of host entries in the local host list - * if DNS_LOCAL_HOSTLIST_IS_DYNAMIC==1. - */ -#if !defined MEMP_NUM_LOCALHOSTLIST || defined __DOXYGEN__ -#define MEMP_NUM_LOCALHOSTLIST 1 -#endif - -/** - * PBUF_POOL_SIZE: the number of buffers in the pbuf pool. - */ -#if !defined PBUF_POOL_SIZE || defined __DOXYGEN__ -#define PBUF_POOL_SIZE 16 -#endif - -/** MEMP_NUM_API_MSG: the number of concurrently active calls to various - * socket, netconn, and tcpip functions - */ -#if !defined MEMP_NUM_API_MSG || defined __DOXYGEN__ -#define MEMP_NUM_API_MSG MEMP_NUM_TCPIP_MSG_API -#endif - -/** MEMP_NUM_DNS_API_MSG: the number of concurrently active calls to netconn_gethostbyname - */ -#if !defined MEMP_NUM_DNS_API_MSG || defined __DOXYGEN__ -#define MEMP_NUM_DNS_API_MSG MEMP_NUM_TCPIP_MSG_API -#endif - -/** MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA: the number of concurrently active calls - * to getsockopt/setsockopt - */ -#if !defined MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA || defined __DOXYGEN__ -#define MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA MEMP_NUM_TCPIP_MSG_API -#endif - -/** MEMP_NUM_NETIFAPI_MSG: the number of concurrently active calls to the - * netifapi functions - */ -#if !defined MEMP_NUM_NETIFAPI_MSG || defined __DOXYGEN__ -#define MEMP_NUM_NETIFAPI_MSG MEMP_NUM_TCPIP_MSG_API -#endif -/** - * @} - */ - -/* - --------------------------------- - ---------- ARP options ---------- - --------------------------------- -*/ -/** - * @defgroup lwip_opts_arp ARP - * @ingroup lwip_opts_ipv4 - * @{ - */ -/** - * LWIP_ARP==1: Enable ARP functionality. - */ -#if !defined LWIP_ARP || defined __DOXYGEN__ -#define LWIP_ARP 1 -#endif - -/** - * ARP_TABLE_SIZE: Number of active MAC-IP address pairs cached. - */ -#if !defined ARP_TABLE_SIZE || defined __DOXYGEN__ -#define ARP_TABLE_SIZE 10 -#endif - -/** the time an ARP entry stays valid after its last update, - * for ARP_TMR_INTERVAL = 1000, this is - * (60 * 5) seconds = 5 minutes. - */ -#if !defined ARP_MAXAGE || defined __DOXYGEN__ -#define ARP_MAXAGE 300 -#endif - -/** - * ARP_QUEUEING==1: Multiple outgoing packets are queued during hardware address - * resolution. By default, only the most recent packet is queued per IP address. - * This is sufficient for most protocols and mainly reduces TCP connection - * startup time. Set this to 1 if you know your application sends more than one - * packet in a row to an IP address that is not in the ARP cache. - */ -#if !defined ARP_QUEUEING || defined __DOXYGEN__ -#define ARP_QUEUEING 0 -#endif - -/** The maximum number of packets which may be queued for each - * unresolved address by other network layers. Defaults to 3, 0 means disabled. - * Old packets are dropped, new packets are queued. - */ -#if !defined ARP_QUEUE_LEN || defined __DOXYGEN__ -#define ARP_QUEUE_LEN 3 -#endif - -/** - * ETHARP_SUPPORT_VLAN==1: support receiving and sending ethernet packets with - * VLAN header. See the description of LWIP_HOOK_VLAN_CHECK and - * LWIP_HOOK_VLAN_SET hooks to check/set VLAN headers. - * Additionally, you can define ETHARP_VLAN_CHECK to an u16_t VLAN ID to check. - * If ETHARP_VLAN_CHECK is defined, only VLAN-traffic for this VLAN is accepted. - * If ETHARP_VLAN_CHECK is not defined, all traffic is accepted. - * Alternatively, define a function/define ETHARP_VLAN_CHECK_FN(eth_hdr, vlan) - * that returns 1 to accept a packet or 0 to drop a packet. - */ -#if !defined ETHARP_SUPPORT_VLAN || defined __DOXYGEN__ -#define ETHARP_SUPPORT_VLAN 0 -#endif - -/** LWIP_ETHERNET==1: enable ethernet support even though ARP might be disabled - */ -#if !defined LWIP_ETHERNET || defined __DOXYGEN__ -#define LWIP_ETHERNET LWIP_ARP -#endif - -/** ETH_PAD_SIZE: number of bytes added before the ethernet header to ensure - * alignment of payload after that header. Since the header is 14 bytes long, - * without this padding e.g. addresses in the IP header will not be aligned - * on a 32-bit boundary, so setting this to 2 can speed up 32-bit-platforms. - */ -#if !defined ETH_PAD_SIZE || defined __DOXYGEN__ -#define ETH_PAD_SIZE 0 -#endif - -/** ETHARP_SUPPORT_STATIC_ENTRIES==1: enable code to support static ARP table - * entries (using etharp_add_static_entry/etharp_remove_static_entry). - */ -#if !defined ETHARP_SUPPORT_STATIC_ENTRIES || defined __DOXYGEN__ -#define ETHARP_SUPPORT_STATIC_ENTRIES 0 -#endif - -/** ETHARP_TABLE_MATCH_NETIF==1: Match netif for ARP table entries. - * If disabled, duplicate IP address on multiple netifs are not supported - * (but this should only occur for AutoIP). - */ -#if !defined ETHARP_TABLE_MATCH_NETIF || defined __DOXYGEN__ -#define ETHARP_TABLE_MATCH_NETIF !LWIP_SINGLE_NETIF -#endif -/** - * @} - */ - -/* - -------------------------------- - ---------- IP options ---------- - -------------------------------- -*/ -/** - * @defgroup lwip_opts_ipv4 IPv4 - * @ingroup lwip_opts - * @{ - */ -/** - * LWIP_IPV4==1: Enable IPv4 - */ -#if !defined LWIP_IPV4 || defined __DOXYGEN__ -#define LWIP_IPV4 1 -#endif - -/** - * IP_FORWARD==1: Enables the ability to forward IP packets across network - * interfaces. If you are going to run lwIP on a device with only one network - * interface, define this to 0. - */ -#if !defined IP_FORWARD || defined __DOXYGEN__ -#define IP_FORWARD 0 -#endif - -/** - * IP_REASSEMBLY==1: Reassemble incoming fragmented IP packets. Note that - * this option does not affect outgoing packet sizes, which can be controlled - * via IP_FRAG. - */ -#if !defined IP_REASSEMBLY || defined __DOXYGEN__ -#define IP_REASSEMBLY 1 -#endif - -/** - * IP_FRAG==1: Fragment outgoing IP packets if their size exceeds MTU. Note - * that this option does not affect incoming packet sizes, which can be - * controlled via IP_REASSEMBLY. - */ -#if !defined IP_FRAG || defined __DOXYGEN__ -#define IP_FRAG 1 -#endif - -#if !LWIP_IPV4 -/* disable IPv4 extensions when IPv4 is disabled */ -#undef IP_FORWARD -#define IP_FORWARD 0 -#undef IP_REASSEMBLY -#define IP_REASSEMBLY 0 -#undef IP_FRAG -#define IP_FRAG 0 -#endif /* !LWIP_IPV4 */ - -/** - * IP_OPTIONS_ALLOWED: Defines the behavior for IP options. - * IP_OPTIONS_ALLOWED==0: All packets with IP options are dropped. - * IP_OPTIONS_ALLOWED==1: IP options are allowed (but not parsed). - */ -#if !defined IP_OPTIONS_ALLOWED || defined __DOXYGEN__ -#define IP_OPTIONS_ALLOWED 1 -#endif - -/** - * IP_REASS_MAXAGE: Maximum time (in multiples of IP_TMR_INTERVAL - so seconds, normally) - * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived - * in this time, the whole packet is discarded. - */ -#if !defined IP_REASS_MAXAGE || defined __DOXYGEN__ -#define IP_REASS_MAXAGE 15 -#endif - -/** - * IP_REASS_MAX_PBUFS: Total maximum amount of pbufs waiting to be reassembled. - * Since the received pbufs are enqueued, be sure to configure - * PBUF_POOL_SIZE > IP_REASS_MAX_PBUFS so that the stack is still able to receive - * packets even if the maximum amount of fragments is enqueued for reassembly! - * When IPv4 *and* IPv6 are enabled, this even changes to - * (PBUF_POOL_SIZE > 2 * IP_REASS_MAX_PBUFS)! - */ -#if !defined IP_REASS_MAX_PBUFS || defined __DOXYGEN__ -#define IP_REASS_MAX_PBUFS 10 -#endif - -/** - * IP_DEFAULT_TTL: Default value for Time-To-Live used by transport layers. - */ -#if !defined IP_DEFAULT_TTL || defined __DOXYGEN__ -#define IP_DEFAULT_TTL 255 -#endif - -/** - * IP_SOF_BROADCAST=1: Use the SOF_BROADCAST field to enable broadcast - * filter per pcb on udp and raw send operations. To enable broadcast filter - * on recv operations, you also have to set IP_SOF_BROADCAST_RECV=1. - */ -#if !defined IP_SOF_BROADCAST || defined __DOXYGEN__ -#define IP_SOF_BROADCAST 0 -#endif - -/** - * IP_SOF_BROADCAST_RECV (requires IP_SOF_BROADCAST=1) enable the broadcast - * filter on recv operations. - */ -#if !defined IP_SOF_BROADCAST_RECV || defined __DOXYGEN__ -#define IP_SOF_BROADCAST_RECV 0 -#endif - -/** - * IP_FORWARD_ALLOW_TX_ON_RX_NETIF==1: allow ip_forward() to send packets back - * out on the netif where it was received. This should only be used for - * wireless networks. - * ATTENTION: When this is 1, make sure your netif driver correctly marks incoming - * link-layer-broadcast/multicast packets as such using the corresponding pbuf flags! - */ -#if !defined IP_FORWARD_ALLOW_TX_ON_RX_NETIF || defined __DOXYGEN__ -#define IP_FORWARD_ALLOW_TX_ON_RX_NETIF 0 -#endif -/** - * @} - */ - -/* - ---------------------------------- - ---------- ICMP options ---------- - ---------------------------------- -*/ -/** - * @defgroup lwip_opts_icmp ICMP - * @ingroup lwip_opts_ipv4 - * @{ - */ -/** - * LWIP_ICMP==1: Enable ICMP module inside the IP stack. - * Be careful, disable that make your product non-compliant to RFC1122 - */ -#if !defined LWIP_ICMP || defined __DOXYGEN__ -#define LWIP_ICMP 1 -#endif - -/** - * ICMP_TTL: Default value for Time-To-Live used by ICMP packets. - */ -#if !defined ICMP_TTL || defined __DOXYGEN__ -#define ICMP_TTL IP_DEFAULT_TTL -#endif - -/** - * LWIP_BROADCAST_PING==1: respond to broadcast pings (default is unicast only) - */ -#if !defined LWIP_BROADCAST_PING || defined __DOXYGEN__ -#define LWIP_BROADCAST_PING 0 -#endif - -/** - * LWIP_MULTICAST_PING==1: respond to multicast pings (default is unicast only) - */ -#if !defined LWIP_MULTICAST_PING || defined __DOXYGEN__ -#define LWIP_MULTICAST_PING 0 -#endif -/** - * @} - */ - -/* - --------------------------------- - ---------- RAW options ---------- - --------------------------------- -*/ -/** - * @defgroup lwip_opts_raw RAW - * @ingroup lwip_opts_callback - * @{ - */ -/** - * LWIP_RAW==1: Enable application layer to hook into the IP layer itself. - */ -#if !defined LWIP_RAW || defined __DOXYGEN__ -#define LWIP_RAW 0 -#endif - -/** - * LWIP_RAW==1: Enable application layer to hook into the IP layer itself. - */ -#if !defined RAW_TTL || defined __DOXYGEN__ -#define RAW_TTL IP_DEFAULT_TTL -#endif -/** - * @} - */ - -/* - ---------------------------------- - ---------- DHCP options ---------- - ---------------------------------- -*/ -/** - * @defgroup lwip_opts_dhcp DHCP - * @ingroup lwip_opts_ipv4 - * @{ - */ -/** - * LWIP_DHCP==1: Enable DHCP module. - */ -#if !defined LWIP_DHCP || defined __DOXYGEN__ -#define LWIP_DHCP 0 -#endif -#if !LWIP_IPV4 -/* disable DHCP when IPv4 is disabled */ -#undef LWIP_DHCP -#define LWIP_DHCP 0 -#endif /* !LWIP_IPV4 */ - -/** - * DHCP_DOES_ARP_CHECK==1: Do an ARP check on the offered address. - */ -#if !defined DHCP_DOES_ARP_CHECK || defined __DOXYGEN__ -#define DHCP_DOES_ARP_CHECK (LWIP_DHCP && LWIP_ARP) -#endif - -/** - * LWIP_DHCP_BOOTP_FILE==1: Store offered_si_addr and boot_file_name. - */ -#if !defined LWIP_DHCP_BOOTP_FILE || defined __DOXYGEN__ -#define LWIP_DHCP_BOOTP_FILE 0 -#endif - -/** - * LWIP_DHCP_GETS_NTP==1: Request NTP servers with discover/select. For each - * response packet, an callback is called, which has to be provided by the port: - * void dhcp_set_ntp_servers(u8_t num_ntp_servers, ip_addr_t* ntp_server_addrs); -*/ -#if !defined LWIP_DHCP_GET_NTP_SRV || defined __DOXYGEN__ -#define LWIP_DHCP_GET_NTP_SRV 0 -#endif - -/** - * The maximum of NTP servers requested - */ -#if !defined LWIP_DHCP_MAX_NTP_SERVERS || defined __DOXYGEN__ -#define LWIP_DHCP_MAX_NTP_SERVERS 1 -#endif - -/** - * LWIP_DHCP_MAX_DNS_SERVERS > 0: Request DNS servers with discover/select. - * DNS servers received in the response are passed to DNS via @ref dns_setserver() - * (up to the maximum limit defined here). - */ -#if !defined LWIP_DHCP_MAX_DNS_SERVERS || defined __DOXYGEN__ -#define LWIP_DHCP_MAX_DNS_SERVERS DNS_MAX_SERVERS -#endif -/** - * @} - */ - -/* - ------------------------------------ - ---------- AUTOIP options ---------- - ------------------------------------ -*/ -/** - * @defgroup lwip_opts_autoip AUTOIP - * @ingroup lwip_opts_ipv4 - * @{ - */ -/** - * LWIP_AUTOIP==1: Enable AUTOIP module. - */ -#if !defined LWIP_AUTOIP || defined __DOXYGEN__ -#define LWIP_AUTOIP 0 -#endif -#if !LWIP_IPV4 -/* disable AUTOIP when IPv4 is disabled */ -#undef LWIP_AUTOIP -#define LWIP_AUTOIP 0 -#endif /* !LWIP_IPV4 */ - -/** - * LWIP_DHCP_AUTOIP_COOP==1: Allow DHCP and AUTOIP to be both enabled on - * the same interface at the same time. - */ -#if !defined LWIP_DHCP_AUTOIP_COOP || defined __DOXYGEN__ -#define LWIP_DHCP_AUTOIP_COOP 0 -#endif - -/** - * LWIP_DHCP_AUTOIP_COOP_TRIES: Set to the number of DHCP DISCOVER probes - * that should be sent before falling back on AUTOIP (the DHCP client keeps - * running in this case). This can be set as low as 1 to get an AutoIP address - * very quickly, but you should be prepared to handle a changing IP address - * when DHCP overrides AutoIP. - */ -#if !defined LWIP_DHCP_AUTOIP_COOP_TRIES || defined __DOXYGEN__ -#define LWIP_DHCP_AUTOIP_COOP_TRIES 9 -#endif -/** - * @} - */ - -/* - ---------------------------------- - ----- SNMP MIB2 support ----- - ---------------------------------- -*/ -/** - * @defgroup lwip_opts_mib2 SNMP MIB2 callbacks - * @ingroup lwip_opts_infrastructure - * @{ - */ -/** - * LWIP_MIB2_CALLBACKS==1: Turn on SNMP MIB2 callbacks. - * Turn this on to get callbacks needed to implement MIB2. - * Usually MIB2_STATS should be enabled, too. - */ -#if !defined LWIP_MIB2_CALLBACKS || defined __DOXYGEN__ -#define LWIP_MIB2_CALLBACKS 0 -#endif -/** - * @} - */ - -/* - ---------------------------------- - -------- Multicast options ------- - ---------------------------------- -*/ -/** - * @defgroup lwip_opts_multicast Multicast - * @ingroup lwip_opts_infrastructure - * @{ - */ -/** - * LWIP_MULTICAST_TX_OPTIONS==1: Enable multicast TX support like the socket options - * IP_MULTICAST_TTL/IP_MULTICAST_IF/IP_MULTICAST_LOOP, as well as (currently only) - * core support for the corresponding IPv6 options. - */ -#if !defined LWIP_MULTICAST_TX_OPTIONS || defined __DOXYGEN__ -#define LWIP_MULTICAST_TX_OPTIONS ((LWIP_IGMP || LWIP_IPV6_MLD) && (LWIP_UDP || LWIP_RAW)) -#endif -/** - * @} - */ - -/* - ---------------------------------- - ---------- IGMP options ---------- - ---------------------------------- -*/ -/** - * @defgroup lwip_opts_igmp IGMP - * @ingroup lwip_opts_ipv4 - * @{ - */ -/** - * LWIP_IGMP==1: Turn on IGMP module. - */ -#if !defined LWIP_IGMP || defined __DOXYGEN__ -#define LWIP_IGMP 0 -#endif -#if !LWIP_IPV4 -#undef LWIP_IGMP -#define LWIP_IGMP 0 -#endif -/** - * @} - */ - -/* - ---------------------------------- - ---------- DNS options ----------- - ---------------------------------- -*/ -/** - * @defgroup lwip_opts_dns DNS - * @ingroup lwip_opts_callback - * @{ - */ -/** - * LWIP_DNS==1: Turn on DNS module. UDP must be available for DNS - * transport. - */ -#if !defined LWIP_DNS || defined __DOXYGEN__ -#define LWIP_DNS 0 -#endif - -/** DNS maximum number of entries to maintain locally. */ -#if !defined DNS_TABLE_SIZE || defined __DOXYGEN__ -#define DNS_TABLE_SIZE 4 -#endif - -/** DNS maximum host name length supported in the name table. */ -#if !defined DNS_MAX_NAME_LENGTH || defined __DOXYGEN__ -#define DNS_MAX_NAME_LENGTH 256 -#endif - -/** The maximum of DNS servers - * The first server can be initialized automatically by defining - * DNS_SERVER_ADDRESS(ipaddr), where 'ipaddr' is an 'ip_addr_t*' - */ -#if !defined DNS_MAX_SERVERS || defined __DOXYGEN__ -#define DNS_MAX_SERVERS 2 -#endif - -/** DNS maximum number of retries when asking for a name, before "timeout". */ -#if !defined DNS_MAX_RETRIES || defined __DOXYGEN__ -#define DNS_MAX_RETRIES 4 -#endif - -/** DNS do a name checking between the query and the response. */ -#if !defined DNS_DOES_NAME_CHECK || defined __DOXYGEN__ -#define DNS_DOES_NAME_CHECK 1 -#endif - -/** LWIP_DNS_SECURE: controls the security level of the DNS implementation - * Use all DNS security features by default. - * This is overridable but should only be needed by very small targets - * or when using against non standard DNS servers. */ -#if !defined LWIP_DNS_SECURE || defined __DOXYGEN__ -#define LWIP_DNS_SECURE (LWIP_DNS_SECURE_RAND_XID | LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING | LWIP_DNS_SECURE_RAND_SRC_PORT) -#endif - -/* A list of DNS security features follows */ -#define LWIP_DNS_SECURE_RAND_XID 1 -#define LWIP_DNS_SECURE_NO_MULTIPLE_OUTSTANDING 2 -#define LWIP_DNS_SECURE_RAND_SRC_PORT 4 - -/** DNS_LOCAL_HOSTLIST: Implements a local host-to-address list. If enabled, you have to define an initializer: - * \#define DNS_LOCAL_HOSTLIST_INIT {DNS_LOCAL_HOSTLIST_ELEM("host_ip4", IPADDR4_INIT_BYTES(1,2,3,4)), \ - * DNS_LOCAL_HOSTLIST_ELEM("host_ip6", IPADDR6_INIT_HOST(123, 234, 345, 456)} - * - * Instead, you can also use an external function: - * \#define DNS_LOOKUP_LOCAL_EXTERN(x) extern err_t my_lookup_function(const char *name, ip_addr_t *addr, u8_t dns_addrtype) - * that looks up the IP address and returns ERR_OK if found (LWIP_DNS_ADDRTYPE_xxx is passed in dns_addrtype). - */ -#if !defined DNS_LOCAL_HOSTLIST || defined __DOXYGEN__ -#define DNS_LOCAL_HOSTLIST 0 -#endif /* DNS_LOCAL_HOSTLIST */ - -/** If this is turned on, the local host-list can be dynamically changed - * at runtime. */ -#if !defined DNS_LOCAL_HOSTLIST_IS_DYNAMIC || defined __DOXYGEN__ -#define DNS_LOCAL_HOSTLIST_IS_DYNAMIC 0 -#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ - -/** Set this to 1 to enable querying ".local" names via mDNS - * using a One-Shot Multicast DNS Query */ -#if !defined LWIP_DNS_SUPPORT_MDNS_QUERIES || defined __DOXYGEN__ -#define LWIP_DNS_SUPPORT_MDNS_QUERIES 0 -#endif -/** - * @} - */ - -/* - --------------------------------- - ---------- UDP options ---------- - --------------------------------- -*/ -/** - * @defgroup lwip_opts_udp UDP - * @ingroup lwip_opts_callback - * @{ - */ -/** - * LWIP_UDP==1: Turn on UDP. - */ -#if !defined LWIP_UDP || defined __DOXYGEN__ -#define LWIP_UDP 1 -#endif - -/** - * LWIP_UDPLITE==1: Turn on UDP-Lite. (Requires LWIP_UDP) - */ -#if !defined LWIP_UDPLITE || defined __DOXYGEN__ -#define LWIP_UDPLITE 0 -#endif - -/** - * UDP_TTL: Default Time-To-Live value. - */ -#if !defined UDP_TTL || defined __DOXYGEN__ -#define UDP_TTL IP_DEFAULT_TTL -#endif - -/** - * LWIP_NETBUF_RECVINFO==1: append destination addr and port to every netbuf. - */ -#if !defined LWIP_NETBUF_RECVINFO || defined __DOXYGEN__ -#define LWIP_NETBUF_RECVINFO 0 -#endif -/** - * @} - */ - -/* - --------------------------------- - ---------- TCP options ---------- - --------------------------------- -*/ -/** - * @defgroup lwip_opts_tcp TCP - * @ingroup lwip_opts_callback - * @{ - */ -/** - * LWIP_TCP==1: Turn on TCP. - */ -#if !defined LWIP_TCP || defined __DOXYGEN__ -#define LWIP_TCP 1 -#endif - -/** - * TCP_TTL: Default Time-To-Live value. - */ -#if !defined TCP_TTL || defined __DOXYGEN__ -#define TCP_TTL IP_DEFAULT_TTL -#endif - -/** - * TCP_WND: The size of a TCP window. This must be at least - * (2 * TCP_MSS) for things to work well. - * ATTENTION: when using TCP_RCV_SCALE, TCP_WND is the total size - * with scaling applied. Maximum window value in the TCP header - * will be TCP_WND >> TCP_RCV_SCALE - */ -#if !defined TCP_WND || defined __DOXYGEN__ -#define TCP_WND (4 * TCP_MSS) -#endif - -/** - * TCP_MAXRTX: Maximum number of retransmissions of data segments. - */ -#if !defined TCP_MAXRTX || defined __DOXYGEN__ -#define TCP_MAXRTX 12 -#endif - -/** - * TCP_SYNMAXRTX: Maximum number of retransmissions of SYN segments. - */ -#if !defined TCP_SYNMAXRTX || defined __DOXYGEN__ -#define TCP_SYNMAXRTX 6 -#endif - -/** - * TCP_QUEUE_OOSEQ==1: TCP will queue segments that arrive out of order. - * Define to 0 if your device is low on memory. - */ -#if !defined TCP_QUEUE_OOSEQ || defined __DOXYGEN__ -#define TCP_QUEUE_OOSEQ LWIP_TCP -#endif - -/** - * LWIP_TCP_SACK_OUT==1: TCP will support sending selective acknowledgements (SACKs). - */ -#if !defined LWIP_TCP_SACK_OUT || defined __DOXYGEN__ -#define LWIP_TCP_SACK_OUT 0 -#endif - -/** - * LWIP_TCP_MAX_SACK_NUM: The maximum number of SACK values to include in TCP segments. - * Must be at least 1, but is only used if LWIP_TCP_SACK_OUT is enabled. - * NOTE: Even though we never send more than 3 or 4 SACK ranges in a single segment - * (depending on other options), setting this option to values greater than 4 is not pointless. - * This is basically the max number of SACK ranges we want to keep track of. - * As new data is delivered, some of the SACK ranges may be removed or merged. - * In that case some of those older SACK ranges may be used again. - * The amount of memory used to store SACK ranges is LWIP_TCP_MAX_SACK_NUM * 8 bytes for each TCP PCB. - */ -#if !defined LWIP_TCP_MAX_SACK_NUM || defined __DOXYGEN__ -#define LWIP_TCP_MAX_SACK_NUM 4 -#endif - -/** - * TCP_MSS: TCP Maximum segment size. (default is 536, a conservative default, - * you might want to increase this.) - * For the receive side, this MSS is advertised to the remote side - * when opening a connection. For the transmit size, this MSS sets - * an upper limit on the MSS advertised by the remote host. - */ -#if !defined TCP_MSS || defined __DOXYGEN__ -#define TCP_MSS 536 -#endif - -/** - * TCP_CALCULATE_EFF_SEND_MSS: "The maximum size of a segment that TCP really - * sends, the 'effective send MSS,' MUST be the smaller of the send MSS (which - * reflects the available reassembly buffer size at the remote host) and the - * largest size permitted by the IP layer" (RFC 1122) - * Setting this to 1 enables code that checks TCP_MSS against the MTU of the - * netif used for a connection and limits the MSS if it would be too big otherwise. - */ -#if !defined TCP_CALCULATE_EFF_SEND_MSS || defined __DOXYGEN__ -#define TCP_CALCULATE_EFF_SEND_MSS 1 -#endif - - -/** - * TCP_SND_BUF: TCP sender buffer space (bytes). - * To achieve good performance, this should be at least 2 * TCP_MSS. - */ -#if !defined TCP_SND_BUF || defined __DOXYGEN__ -#define TCP_SND_BUF (2 * TCP_MSS) -#endif - -/** - * TCP_SND_QUEUELEN: TCP sender buffer space (pbufs). This must be at least - * as much as (2 * TCP_SND_BUF/TCP_MSS) for things to work. - */ -#if !defined TCP_SND_QUEUELEN || defined __DOXYGEN__ -#define TCP_SND_QUEUELEN ((4 * (TCP_SND_BUF) + (TCP_MSS - 1))/(TCP_MSS)) -#endif - -/** - * TCP_SNDLOWAT: TCP writable space (bytes). This must be less than - * TCP_SND_BUF. It is the amount of space which must be available in the - * TCP snd_buf for select to return writable (combined with TCP_SNDQUEUELOWAT). - */ -#if !defined TCP_SNDLOWAT || defined __DOXYGEN__ -#define TCP_SNDLOWAT LWIP_MIN(LWIP_MAX(((TCP_SND_BUF)/2), (2 * TCP_MSS) + 1), (TCP_SND_BUF) - 1) -#endif - -/** - * TCP_SNDQUEUELOWAT: TCP writable bufs (pbuf count). This must be less - * than TCP_SND_QUEUELEN. If the number of pbufs queued on a pcb drops below - * this number, select returns writable (combined with TCP_SNDLOWAT). - */ -#if !defined TCP_SNDQUEUELOWAT || defined __DOXYGEN__ -#define TCP_SNDQUEUELOWAT LWIP_MAX(((TCP_SND_QUEUELEN)/2), 5) -#endif - -/** - * TCP_OOSEQ_MAX_BYTES: The default maximum number of bytes queued on ooseq per - * pcb if TCP_OOSEQ_BYTES_LIMIT is not defined. Default is 0 (no limit). - * Only valid for TCP_QUEUE_OOSEQ==1. - */ -#if !defined TCP_OOSEQ_MAX_BYTES || defined __DOXYGEN__ -#define TCP_OOSEQ_MAX_BYTES 0 -#endif - -/** - * TCP_OOSEQ_BYTES_LIMIT(pcb): Return the maximum number of bytes to be queued - * on ooseq per pcb, given the pcb. Only valid for TCP_QUEUE_OOSEQ==1 && - * TCP_OOSEQ_MAX_BYTES==1. - * Use this to override TCP_OOSEQ_MAX_BYTES to a dynamic value per pcb. - */ -#if !defined TCP_OOSEQ_BYTES_LIMIT -#if TCP_OOSEQ_MAX_BYTES -#define TCP_OOSEQ_BYTES_LIMIT(pcb) TCP_OOSEQ_MAX_BYTES -#elif defined __DOXYGEN__ -#define TCP_OOSEQ_BYTES_LIMIT(pcb) -#endif -#endif - -/** - * TCP_OOSEQ_MAX_PBUFS: The default maximum number of pbufs queued on ooseq per - * pcb if TCP_OOSEQ_BYTES_LIMIT is not defined. Default is 0 (no limit). - * Only valid for TCP_QUEUE_OOSEQ==1. - */ -#if !defined TCP_OOSEQ_MAX_PBUFS || defined __DOXYGEN__ -#define TCP_OOSEQ_MAX_PBUFS 0 -#endif - -/** - * TCP_OOSEQ_PBUFS_LIMIT(pcb): Return the maximum number of pbufs to be queued - * on ooseq per pcb, given the pcb. Only valid for TCP_QUEUE_OOSEQ==1 && - * TCP_OOSEQ_MAX_PBUFS==1. - * Use this to override TCP_OOSEQ_MAX_PBUFS to a dynamic value per pcb. - */ -#if !defined TCP_OOSEQ_PBUFS_LIMIT -#if TCP_OOSEQ_MAX_PBUFS -#define TCP_OOSEQ_PBUFS_LIMIT(pcb) TCP_OOSEQ_MAX_PBUFS -#elif defined __DOXYGEN__ -#define TCP_OOSEQ_PBUFS_LIMIT(pcb) -#endif -#endif - -/** - * TCP_LISTEN_BACKLOG: Enable the backlog option for tcp listen pcb. - */ -#if !defined TCP_LISTEN_BACKLOG || defined __DOXYGEN__ -#define TCP_LISTEN_BACKLOG 0 -#endif - -/** - * The maximum allowed backlog for TCP listen netconns. - * This backlog is used unless another is explicitly specified. - * 0xff is the maximum (u8_t). - */ -#if !defined TCP_DEFAULT_LISTEN_BACKLOG || defined __DOXYGEN__ -#define TCP_DEFAULT_LISTEN_BACKLOG 0xff -#endif - -/** - * TCP_OVERSIZE: The maximum number of bytes that tcp_write may - * allocate ahead of time in an attempt to create shorter pbuf chains - * for transmission. The meaningful range is 0 to TCP_MSS. Some - * suggested values are: - * - * 0: Disable oversized allocation. Each tcp_write() allocates a new - pbuf (old behaviour). - * 1: Allocate size-aligned pbufs with minimal excess. Use this if your - * scatter-gather DMA requires aligned fragments. - * 128: Limit the pbuf/memory overhead to 20%. - * TCP_MSS: Try to create unfragmented TCP packets. - * TCP_MSS/4: Try to create 4 fragments or less per TCP packet. - */ -#if !defined TCP_OVERSIZE || defined __DOXYGEN__ -#define TCP_OVERSIZE TCP_MSS -#endif - -/** - * LWIP_TCP_TIMESTAMPS==1: support the TCP timestamp option. - * The timestamp option is currently only used to help remote hosts, it is not - * really used locally. Therefore, it is only enabled when a TS option is - * received in the initial SYN packet from a remote host. - */ -#if !defined LWIP_TCP_TIMESTAMPS || defined __DOXYGEN__ -#define LWIP_TCP_TIMESTAMPS 0 -#endif - -/** - * TCP_WND_UPDATE_THRESHOLD: difference in window to trigger an - * explicit window update - */ -#if !defined TCP_WND_UPDATE_THRESHOLD || defined __DOXYGEN__ -#define TCP_WND_UPDATE_THRESHOLD LWIP_MIN((TCP_WND / 4), (TCP_MSS * 4)) -#endif - -/** - * LWIP_EVENT_API and LWIP_CALLBACK_API: Only one of these should be set to 1. - * LWIP_EVENT_API==1: The user defines lwip_tcp_event() to receive all - * events (accept, sent, etc) that happen in the system. - * LWIP_CALLBACK_API==1: The PCB callback function is called directly - * for the event. This is the default. - */ -#if !defined(LWIP_EVENT_API) && !defined(LWIP_CALLBACK_API) || defined __DOXYGEN__ -#define LWIP_EVENT_API 0 -#define LWIP_CALLBACK_API 1 -#else -#ifndef LWIP_EVENT_API -#define LWIP_EVENT_API 0 -#endif -#ifndef LWIP_CALLBACK_API -#define LWIP_CALLBACK_API 0 -#endif -#endif - -/** - * LWIP_WND_SCALE and TCP_RCV_SCALE: - * Set LWIP_WND_SCALE to 1 to enable window scaling. - * Set TCP_RCV_SCALE to the desired scaling factor (shift count in the - * range of [0..14]). - * When LWIP_WND_SCALE is enabled but TCP_RCV_SCALE is 0, we can use a large - * send window while having a small receive window only. - */ -#if !defined LWIP_WND_SCALE || defined __DOXYGEN__ -#define LWIP_WND_SCALE 0 -#define TCP_RCV_SCALE 0 -#endif - -/** - * LWIP_TCP_PCB_NUM_EXT_ARGS: - * When this is > 0, every tcp pcb (including listen pcb) includes a number of - * additional argument entries in an array (see tcp_ext_arg_alloc_id) - */ -#if !defined LWIP_TCP_PCB_NUM_EXT_ARGS || defined __DOXYGEN__ -#define LWIP_TCP_PCB_NUM_EXT_ARGS 0 -#endif - -/** LWIP_ALTCP==1: enable the altcp API. - * altcp is an abstraction layer that prevents applications linking against the - * tcp.h functions but provides the same functionality. It is used to e.g. add - * SSL/TLS or proxy-connect support to an application written for the tcp callback - * API without that application knowing the protocol details. - * - * With LWIP_ALTCP==0, applications written against the altcp API can still be - * compiled but are directly linked against the tcp.h callback API and then - * cannot use layered protocols. - * - * See @ref altcp_api - */ -#if !defined LWIP_ALTCP || defined __DOXYGEN__ -#define LWIP_ALTCP 0 -#endif - -/** LWIP_ALTCP_TLS==1: enable TLS support for altcp API. - * This needs a port of the functions in altcp_tls.h to a TLS library. - * A port to ARM mbedtls is provided with lwIP, see apps/altcp_tls/ directory - * and LWIP_ALTCP_TLS_MBEDTLS option. - */ -#if !defined LWIP_ALTCP_TLS || defined __DOXYGEN__ -#define LWIP_ALTCP_TLS 0 -#endif - -/** - * @} - */ - -/* - ---------------------------------- - ---------- Pbuf options ---------- - ---------------------------------- -*/ -/** - * @defgroup lwip_opts_pbuf PBUF - * @ingroup lwip_opts - * @{ - */ -/** - * PBUF_LINK_HLEN: the number of bytes that should be allocated for a - * link level header. The default is 14, the standard value for - * Ethernet. - */ -#if !defined PBUF_LINK_HLEN || defined __DOXYGEN__ -#if defined LWIP_HOOK_VLAN_SET && !defined __DOXYGEN__ -#define PBUF_LINK_HLEN (18 + ETH_PAD_SIZE) -#else /* LWIP_HOOK_VLAN_SET */ -#define PBUF_LINK_HLEN (14 + ETH_PAD_SIZE) -#endif /* LWIP_HOOK_VLAN_SET */ -#endif - -/** - * PBUF_LINK_ENCAPSULATION_HLEN: the number of bytes that should be allocated - * for an additional encapsulation header before ethernet headers (e.g. 802.11) - */ -#if !defined PBUF_LINK_ENCAPSULATION_HLEN || defined __DOXYGEN__ -#define PBUF_LINK_ENCAPSULATION_HLEN 0 -#endif - -/** - * PBUF_POOL_BUFSIZE: the size of each pbuf in the pbuf pool. The default is - * designed to accommodate single full size TCP frame in one pbuf, including - * TCP_MSS, IP header, and link header. - */ -#if !defined PBUF_POOL_BUFSIZE || defined __DOXYGEN__ -#define PBUF_POOL_BUFSIZE LWIP_MEM_ALIGN_SIZE(TCP_MSS+40+PBUF_LINK_ENCAPSULATION_HLEN+PBUF_LINK_HLEN) -#endif - -/** - * LWIP_PBUF_REF_T: Refcount type in pbuf. - * Default width of u8_t can be increased if 255 refs are not enough for you. - */ -#if !defined LWIP_PBUF_REF_T || defined __DOXYGEN__ -#define LWIP_PBUF_REF_T u8_t -#endif -/** - * @} - */ - -/* - ------------------------------------------------ - ---------- Network Interfaces options ---------- - ------------------------------------------------ -*/ -/** - * @defgroup lwip_opts_netif NETIF - * @ingroup lwip_opts - * @{ - */ -/** - * LWIP_SINGLE_NETIF==1: use a single netif only. This is the common case for - * small real-life targets. Some code like routing etc. can be left out. - */ -#if !defined LWIP_SINGLE_NETIF || defined __DOXYGEN__ -#define LWIP_SINGLE_NETIF 0 -#endif - -/** - * LWIP_NETIF_HOSTNAME==1: use DHCP_OPTION_HOSTNAME with netif's hostname - * field. - */ -#if !defined LWIP_NETIF_HOSTNAME || defined __DOXYGEN__ -#define LWIP_NETIF_HOSTNAME 0 -#endif - -/** - * LWIP_NETIF_API==1: Support netif api (in netifapi.c) - */ -#if !defined LWIP_NETIF_API || defined __DOXYGEN__ -#define LWIP_NETIF_API 0 -#endif - -/** - * LWIP_NETIF_STATUS_CALLBACK==1: Support a callback function whenever an interface - * changes its up/down status (i.e., due to DHCP IP acquisition) - */ -#if !defined LWIP_NETIF_STATUS_CALLBACK || defined __DOXYGEN__ -#define LWIP_NETIF_STATUS_CALLBACK 0 -#endif - -/** - * LWIP_NETIF_EXT_STATUS_CALLBACK==1: Support an extended callback function - * for several netif related event that supports multiple subscribers. - * @see netif_ext_status_callback - */ -#if !defined LWIP_NETIF_EXT_STATUS_CALLBACK || defined __DOXYGEN__ -#define LWIP_NETIF_EXT_STATUS_CALLBACK 0 -#endif - -/** - * LWIP_NETIF_LINK_CALLBACK==1: Support a callback function from an interface - * whenever the link changes (i.e., link down) - */ -#if !defined LWIP_NETIF_LINK_CALLBACK || defined __DOXYGEN__ -#define LWIP_NETIF_LINK_CALLBACK 0 -#endif - -/** - * LWIP_NETIF_REMOVE_CALLBACK==1: Support a callback function that is called - * when a netif has been removed - */ -#if !defined LWIP_NETIF_REMOVE_CALLBACK || defined __DOXYGEN__ -#define LWIP_NETIF_REMOVE_CALLBACK 0 -#endif - -/** - * LWIP_NETIF_HWADDRHINT==1: Cache link-layer-address hints (e.g. table - * indices) in struct netif. TCP and UDP can make use of this to prevent - * scanning the ARP table for every sent packet. While this is faster for big - * ARP tables or many concurrent connections, it might be counterproductive - * if you have a tiny ARP table or if there never are concurrent connections. - */ -#if !defined LWIP_NETIF_HWADDRHINT || defined __DOXYGEN__ -#define LWIP_NETIF_HWADDRHINT 0 -#endif - -/** - * LWIP_NETIF_TX_SINGLE_PBUF: if this is set to 1, lwIP *tries* to put all data - * to be sent into one single pbuf. This is for compatibility with DMA-enabled - * MACs that do not support scatter-gather. - * Beware that this might involve CPU-memcpy before transmitting that would not - * be needed without this flag! Use this only if you need to! - * - * ATTENTION: a driver should *NOT* rely on getting single pbufs but check TX - * pbufs for being in one piece. If not, @ref pbuf_clone can be used to get - * a single pbuf: - * if (p->next != NULL) { - * struct pbuf *q = pbuf_clone(PBUF_RAW, PBUF_RAM, p); - * if (q == NULL) { - * return ERR_MEM; - * } - * p = q; ATTENTION: do NOT free the old 'p' as the ref belongs to the caller! - * } - */ -#if !defined LWIP_NETIF_TX_SINGLE_PBUF || defined __DOXYGEN__ -#define LWIP_NETIF_TX_SINGLE_PBUF 0 -#endif /* LWIP_NETIF_TX_SINGLE_PBUF */ - -/** - * LWIP_NUM_NETIF_CLIENT_DATA: Number of clients that may store - * data in client_data member array of struct netif (max. 256). - */ -#if !defined LWIP_NUM_NETIF_CLIENT_DATA || defined __DOXYGEN__ -#define LWIP_NUM_NETIF_CLIENT_DATA 0 -#endif -/** - * @} - */ - -/* - ------------------------------------ - ---------- LOOPIF options ---------- - ------------------------------------ -*/ -/** - * @defgroup lwip_opts_loop Loopback interface - * @ingroup lwip_opts_netif - * @{ - */ -/** - * LWIP_HAVE_LOOPIF==1: Support loop interface (127.0.0.1). - * This is only needed when no real netifs are available. If at least one other - * netif is available, loopback traffic uses this netif. - */ -#if !defined LWIP_HAVE_LOOPIF || defined __DOXYGEN__ -#define LWIP_HAVE_LOOPIF (LWIP_NETIF_LOOPBACK && !LWIP_SINGLE_NETIF) -#endif - -/** - * LWIP_LOOPIF_MULTICAST==1: Support multicast/IGMP on loop interface (127.0.0.1). - */ -#if !defined LWIP_LOOPIF_MULTICAST || defined __DOXYGEN__ -#define LWIP_LOOPIF_MULTICAST 0 -#endif - -/** - * LWIP_NETIF_LOOPBACK==1: Support sending packets with a destination IP - * address equal to the netif IP address, looping them back up the stack. - */ -#if !defined LWIP_NETIF_LOOPBACK || defined __DOXYGEN__ -#define LWIP_NETIF_LOOPBACK 0 -#endif - -/** - * LWIP_LOOPBACK_MAX_PBUFS: Maximum number of pbufs on queue for loopback - * sending for each netif (0 = disabled) - */ -#if !defined LWIP_LOOPBACK_MAX_PBUFS || defined __DOXYGEN__ -#define LWIP_LOOPBACK_MAX_PBUFS 0 -#endif - -/** - * LWIP_NETIF_LOOPBACK_MULTITHREADING: Indicates whether threading is enabled in - * the system, as netifs must change how they behave depending on this setting - * for the LWIP_NETIF_LOOPBACK option to work. - * Setting this is needed to avoid reentering non-reentrant functions like - * tcp_input(). - * LWIP_NETIF_LOOPBACK_MULTITHREADING==1: Indicates that the user is using a - * multithreaded environment like tcpip.c. In this case, netif->input() - * is called directly. - * LWIP_NETIF_LOOPBACK_MULTITHREADING==0: Indicates a polling (or NO_SYS) setup. - * The packets are put on a list and netif_poll() must be called in - * the main application loop. - */ -#if !defined LWIP_NETIF_LOOPBACK_MULTITHREADING || defined __DOXYGEN__ -#define LWIP_NETIF_LOOPBACK_MULTITHREADING (!NO_SYS) -#endif -/** - * @} - */ - -/* - ------------------------------------ - ---------- Thread options ---------- - ------------------------------------ -*/ -/** - * @defgroup lwip_opts_thread Threading - * @ingroup lwip_opts_infrastructure - * @{ - */ -/** - * TCPIP_THREAD_NAME: The name assigned to the main tcpip thread. - */ -#if !defined TCPIP_THREAD_NAME || defined __DOXYGEN__ -#define TCPIP_THREAD_NAME "tcpip_thread" -#endif - -/** - * TCPIP_THREAD_STACKSIZE: The stack size used by the main tcpip thread. - * The stack size value itself is platform-dependent, but is passed to - * sys_thread_new() when the thread is created. - */ -#if !defined TCPIP_THREAD_STACKSIZE || defined __DOXYGEN__ -#define TCPIP_THREAD_STACKSIZE 0 -#endif - -/** - * TCPIP_THREAD_PRIO: The priority assigned to the main tcpip thread. - * The priority value itself is platform-dependent, but is passed to - * sys_thread_new() when the thread is created. - */ -#if !defined TCPIP_THREAD_PRIO || defined __DOXYGEN__ -#define TCPIP_THREAD_PRIO 1 -#endif - -/** - * TCPIP_MBOX_SIZE: The mailbox size for the tcpip thread messages - * The queue size value itself is platform-dependent, but is passed to - * sys_mbox_new() when tcpip_init is called. - */ -#if !defined TCPIP_MBOX_SIZE || defined __DOXYGEN__ -#define TCPIP_MBOX_SIZE 0 -#endif - -/** - * Define this to something that triggers a watchdog. This is called from - * tcpip_thread after processing a message. - */ -#if !defined LWIP_TCPIP_THREAD_ALIVE || defined __DOXYGEN__ -#define LWIP_TCPIP_THREAD_ALIVE() -#endif - -/** - * SLIPIF_THREAD_NAME: The name assigned to the slipif_loop thread. - */ -#if !defined SLIPIF_THREAD_NAME || defined __DOXYGEN__ -#define SLIPIF_THREAD_NAME "slipif_loop" -#endif - -/** - * SLIP_THREAD_STACKSIZE: The stack size used by the slipif_loop thread. - * The stack size value itself is platform-dependent, but is passed to - * sys_thread_new() when the thread is created. - */ -#if !defined SLIPIF_THREAD_STACKSIZE || defined __DOXYGEN__ -#define SLIPIF_THREAD_STACKSIZE 0 -#endif - -/** - * SLIPIF_THREAD_PRIO: The priority assigned to the slipif_loop thread. - * The priority value itself is platform-dependent, but is passed to - * sys_thread_new() when the thread is created. - */ -#if !defined SLIPIF_THREAD_PRIO || defined __DOXYGEN__ -#define SLIPIF_THREAD_PRIO 1 -#endif - -/** - * DEFAULT_THREAD_NAME: The name assigned to any other lwIP thread. - */ -#if !defined DEFAULT_THREAD_NAME || defined __DOXYGEN__ -#define DEFAULT_THREAD_NAME "lwIP" -#endif - -/** - * DEFAULT_THREAD_STACKSIZE: The stack size used by any other lwIP thread. - * The stack size value itself is platform-dependent, but is passed to - * sys_thread_new() when the thread is created. - */ -#if !defined DEFAULT_THREAD_STACKSIZE || defined __DOXYGEN__ -#define DEFAULT_THREAD_STACKSIZE 0 -#endif - -/** - * DEFAULT_THREAD_PRIO: The priority assigned to any other lwIP thread. - * The priority value itself is platform-dependent, but is passed to - * sys_thread_new() when the thread is created. - */ -#if !defined DEFAULT_THREAD_PRIO || defined __DOXYGEN__ -#define DEFAULT_THREAD_PRIO 1 -#endif - -/** - * DEFAULT_RAW_RECVMBOX_SIZE: The mailbox size for the incoming packets on a - * NETCONN_RAW. The queue size value itself is platform-dependent, but is passed - * to sys_mbox_new() when the recvmbox is created. - */ -#if !defined DEFAULT_RAW_RECVMBOX_SIZE || defined __DOXYGEN__ -#define DEFAULT_RAW_RECVMBOX_SIZE 0 -#endif - -/** - * DEFAULT_UDP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a - * NETCONN_UDP. The queue size value itself is platform-dependent, but is passed - * to sys_mbox_new() when the recvmbox is created. - */ -#if !defined DEFAULT_UDP_RECVMBOX_SIZE || defined __DOXYGEN__ -#define DEFAULT_UDP_RECVMBOX_SIZE 0 -#endif - -/** - * DEFAULT_TCP_RECVMBOX_SIZE: The mailbox size for the incoming packets on a - * NETCONN_TCP. The queue size value itself is platform-dependent, but is passed - * to sys_mbox_new() when the recvmbox is created. - */ -#if !defined DEFAULT_TCP_RECVMBOX_SIZE || defined __DOXYGEN__ -#define DEFAULT_TCP_RECVMBOX_SIZE 0 -#endif - -/** - * DEFAULT_ACCEPTMBOX_SIZE: The mailbox size for the incoming connections. - * The queue size value itself is platform-dependent, but is passed to - * sys_mbox_new() when the acceptmbox is created. - */ -#if !defined DEFAULT_ACCEPTMBOX_SIZE || defined __DOXYGEN__ -#define DEFAULT_ACCEPTMBOX_SIZE 0 -#endif -/** - * @} - */ - -/* - ---------------------------------------------- - ---------- Sequential layer options ---------- - ---------------------------------------------- -*/ -/** - * @defgroup lwip_opts_netconn Netconn - * @ingroup lwip_opts_threadsafe_apis - * @{ - */ -/** - * LWIP_NETCONN==1: Enable Netconn API (require to use api_lib.c) - */ -#if !defined LWIP_NETCONN || defined __DOXYGEN__ -#define LWIP_NETCONN 1 -#endif - -/** LWIP_TCPIP_TIMEOUT==1: Enable tcpip_timeout/tcpip_untimeout to create - * timers running in tcpip_thread from another thread. - */ -#if !defined LWIP_TCPIP_TIMEOUT || defined __DOXYGEN__ -#define LWIP_TCPIP_TIMEOUT 0 -#endif - -/** LWIP_NETCONN_SEM_PER_THREAD==1: Use one (thread-local) semaphore per - * thread calling socket/netconn functions instead of allocating one - * semaphore per netconn (and per select etc.) - * ATTENTION: a thread-local semaphore for API calls is needed: - * - LWIP_NETCONN_THREAD_SEM_GET() returning a sys_sem_t* - * - LWIP_NETCONN_THREAD_SEM_ALLOC() creating the semaphore - * - LWIP_NETCONN_THREAD_SEM_FREE() freeing the semaphore - * The latter 2 can be invoked up by calling netconn_thread_init()/netconn_thread_cleanup(). - * Ports may call these for threads created with sys_thread_new(). - */ -#if !defined LWIP_NETCONN_SEM_PER_THREAD || defined __DOXYGEN__ -#define LWIP_NETCONN_SEM_PER_THREAD 0 -#endif - -/** LWIP_NETCONN_FULLDUPLEX==1: Enable code that allows reading from one thread, - * writing from a 2nd thread and closing from a 3rd thread at the same time. - * ATTENTION: This is currently really alpha! Some requirements: - * - LWIP_NETCONN_SEM_PER_THREAD==1 is required to use one socket/netconn from - * multiple threads at once - * - sys_mbox_free() has to unblock receive tasks waiting on recvmbox/acceptmbox - * and prevent a task pending on this during/after deletion - */ -#if !defined LWIP_NETCONN_FULLDUPLEX || defined __DOXYGEN__ -#define LWIP_NETCONN_FULLDUPLEX 0 -#endif -/** - * @} - */ - -/* - ------------------------------------ - ---------- Socket options ---------- - ------------------------------------ -*/ -/** - * @defgroup lwip_opts_socket Sockets - * @ingroup lwip_opts_threadsafe_apis - * @{ - */ -/** - * LWIP_SOCKET==1: Enable Socket API (require to use sockets.c) - */ -#if !defined LWIP_SOCKET || defined __DOXYGEN__ -#define LWIP_SOCKET 1 -#endif - -/** - * LWIP_COMPAT_SOCKETS==1: Enable BSD-style sockets functions names through defines. - * LWIP_COMPAT_SOCKETS==2: Same as ==1 but correctly named functions are created. - * While this helps code completion, it might conflict with existing libraries. - * (only used if you use sockets.c) - */ -#if !defined LWIP_COMPAT_SOCKETS || defined __DOXYGEN__ -#define LWIP_COMPAT_SOCKETS 1 -#endif - -/** - * LWIP_POSIX_SOCKETS_IO_NAMES==1: Enable POSIX-style sockets functions names. - * Disable this option if you use a POSIX operating system that uses the same - * names (read, write & close). (only used if you use sockets.c) - */ -#if !defined LWIP_POSIX_SOCKETS_IO_NAMES || defined __DOXYGEN__ -#define LWIP_POSIX_SOCKETS_IO_NAMES 1 -#endif - -/** - * LWIP_SOCKET_OFFSET==n: Increases the file descriptor number created by LwIP with n. - * This can be useful when there are multiple APIs which create file descriptors. - * When they all start with a different offset and you won't make them overlap you can - * re implement read/write/close/ioctl/fnctl to send the requested action to the right - * library (sharing select will need more work though). - */ -#if !defined LWIP_SOCKET_OFFSET || defined __DOXYGEN__ -#define LWIP_SOCKET_OFFSET 0 -#endif - -/** - * LWIP_TCP_KEEPALIVE==1: Enable TCP_KEEPIDLE, TCP_KEEPINTVL and TCP_KEEPCNT - * options processing. Note that TCP_KEEPIDLE and TCP_KEEPINTVL have to be set - * in seconds. (does not require sockets.c, and will affect tcp.c) - */ -#if !defined LWIP_TCP_KEEPALIVE || defined __DOXYGEN__ -#define LWIP_TCP_KEEPALIVE 0 -#endif - -/** - * LWIP_SO_SNDTIMEO==1: Enable send timeout for sockets/netconns and - * SO_SNDTIMEO processing. - */ -#if !defined LWIP_SO_SNDTIMEO || defined __DOXYGEN__ -#define LWIP_SO_SNDTIMEO 0 -#endif - -/** - * LWIP_SO_RCVTIMEO==1: Enable receive timeout for sockets/netconns and - * SO_RCVTIMEO processing. - */ -#if !defined LWIP_SO_RCVTIMEO || defined __DOXYGEN__ -#define LWIP_SO_RCVTIMEO 0 -#endif - -/** - * LWIP_SO_SNDRCVTIMEO_NONSTANDARD==1: SO_RCVTIMEO/SO_SNDTIMEO take an int - * (milliseconds, much like winsock does) instead of a struct timeval (default). - */ -#if !defined LWIP_SO_SNDRCVTIMEO_NONSTANDARD || defined __DOXYGEN__ -#define LWIP_SO_SNDRCVTIMEO_NONSTANDARD 0 -#endif - -/** - * LWIP_SO_RCVBUF==1: Enable SO_RCVBUF processing. - */ -#if !defined LWIP_SO_RCVBUF || defined __DOXYGEN__ -#define LWIP_SO_RCVBUF 0 -#endif - -/** - * LWIP_SO_LINGER==1: Enable SO_LINGER processing. - */ -#if !defined LWIP_SO_LINGER || defined __DOXYGEN__ -#define LWIP_SO_LINGER 0 -#endif - -/** - * If LWIP_SO_RCVBUF is used, this is the default value for recv_bufsize. - */ -#if !defined RECV_BUFSIZE_DEFAULT || defined __DOXYGEN__ -#define RECV_BUFSIZE_DEFAULT INT_MAX -#endif - -/** - * By default, TCP socket/netconn close waits 20 seconds max to send the FIN - */ -#if !defined LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT || defined __DOXYGEN__ -#define LWIP_TCP_CLOSE_TIMEOUT_MS_DEFAULT 20000 -#endif - -/** - * SO_REUSE==1: Enable SO_REUSEADDR option. - */ -#if !defined SO_REUSE || defined __DOXYGEN__ -#define SO_REUSE 0 -#endif - -/** - * SO_REUSE_RXTOALL==1: Pass a copy of incoming broadcast/multicast packets - * to all local matches if SO_REUSEADDR is turned on. - * WARNING: Adds a memcpy for every packet if passing to more than one pcb! - */ -#if !defined SO_REUSE_RXTOALL || defined __DOXYGEN__ -#define SO_REUSE_RXTOALL 0 -#endif - -/** - * LWIP_FIONREAD_LINUXMODE==0 (default): ioctl/FIONREAD returns the amount of - * pending data in the network buffer. This is the way windows does it. It's - * the default for lwIP since it is smaller. - * LWIP_FIONREAD_LINUXMODE==1: ioctl/FIONREAD returns the size of the next - * pending datagram in bytes. This is the way linux does it. This code is only - * here for compatibility. - */ -#if !defined LWIP_FIONREAD_LINUXMODE || defined __DOXYGEN__ -#define LWIP_FIONREAD_LINUXMODE 0 -#endif - -/** - * LWIP_SOCKET_SELECT==1 (default): enable select() for sockets (uses a netconn - * callback to keep track of events). - * This saves RAM (counters per socket) and code (netconn event callback), which - * should improve performance a bit). - */ -#if !defined LWIP_SOCKET_SELECT || defined __DOXYGEN__ -#define LWIP_SOCKET_SELECT 1 -#endif - -/** - * LWIP_SOCKET_POLL==1 (default): enable poll() for sockets (including - * struct pollfd, nfds_t, and constants) - */ -#if !defined LWIP_SOCKET_POLL || defined __DOXYGEN__ -#define LWIP_SOCKET_POLL 1 -#endif -/** - * @} - */ - -/* - ---------------------------------------- - ---------- Statistics options ---------- - ---------------------------------------- -*/ -/** - * @defgroup lwip_opts_stats Statistics - * @ingroup lwip_opts_debug - * @{ - */ -/** - * LWIP_STATS==1: Enable statistics collection in lwip_stats. - */ -#if !defined LWIP_STATS || defined __DOXYGEN__ -#define LWIP_STATS 1 -#endif - -#if LWIP_STATS - -/** - * LWIP_STATS_DISPLAY==1: Compile in the statistics output functions. - */ -#if !defined LWIP_STATS_DISPLAY || defined __DOXYGEN__ -#define LWIP_STATS_DISPLAY 0 -#endif - -/** - * LINK_STATS==1: Enable link stats. - */ -#if !defined LINK_STATS || defined __DOXYGEN__ -#define LINK_STATS 1 -#endif - -/** - * ETHARP_STATS==1: Enable etharp stats. - */ -#if !defined ETHARP_STATS || defined __DOXYGEN__ -#define ETHARP_STATS (LWIP_ARP) -#endif - -/** - * IP_STATS==1: Enable IP stats. - */ -#if !defined IP_STATS || defined __DOXYGEN__ -#define IP_STATS 1 -#endif - -/** - * IPFRAG_STATS==1: Enable IP fragmentation stats. Default is - * on if using either frag or reass. - */ -#if !defined IPFRAG_STATS || defined __DOXYGEN__ -#define IPFRAG_STATS (IP_REASSEMBLY || IP_FRAG) -#endif - -/** - * ICMP_STATS==1: Enable ICMP stats. - */ -#if !defined ICMP_STATS || defined __DOXYGEN__ -#define ICMP_STATS 1 -#endif - -/** - * IGMP_STATS==1: Enable IGMP stats. - */ -#if !defined IGMP_STATS || defined __DOXYGEN__ -#define IGMP_STATS (LWIP_IGMP) -#endif - -/** - * UDP_STATS==1: Enable UDP stats. Default is on if - * UDP enabled, otherwise off. - */ -#if !defined UDP_STATS || defined __DOXYGEN__ -#define UDP_STATS (LWIP_UDP) -#endif - -/** - * TCP_STATS==1: Enable TCP stats. Default is on if TCP - * enabled, otherwise off. - */ -#if !defined TCP_STATS || defined __DOXYGEN__ -#define TCP_STATS (LWIP_TCP) -#endif - -/** - * MEM_STATS==1: Enable mem.c stats. - */ -#if !defined MEM_STATS || defined __DOXYGEN__ -#define MEM_STATS ((MEM_LIBC_MALLOC == 0) && (MEM_USE_POOLS == 0)) -#endif - -/** - * MEMP_STATS==1: Enable memp.c pool stats. - */ -#if !defined MEMP_STATS || defined __DOXYGEN__ -#define MEMP_STATS (MEMP_MEM_MALLOC == 0) -#endif - -/** - * SYS_STATS==1: Enable system stats (sem and mbox counts, etc). - */ -#if !defined SYS_STATS || defined __DOXYGEN__ -#define SYS_STATS (NO_SYS == 0) -#endif - -/** - * IP6_STATS==1: Enable IPv6 stats. - */ -#if !defined IP6_STATS || defined __DOXYGEN__ -#define IP6_STATS (LWIP_IPV6) -#endif - -/** - * ICMP6_STATS==1: Enable ICMP for IPv6 stats. - */ -#if !defined ICMP6_STATS || defined __DOXYGEN__ -#define ICMP6_STATS (LWIP_IPV6 && LWIP_ICMP6) -#endif - -/** - * IP6_FRAG_STATS==1: Enable IPv6 fragmentation stats. - */ -#if !defined IP6_FRAG_STATS || defined __DOXYGEN__ -#define IP6_FRAG_STATS (LWIP_IPV6 && (LWIP_IPV6_FRAG || LWIP_IPV6_REASS)) -#endif - -/** - * MLD6_STATS==1: Enable MLD for IPv6 stats. - */ -#if !defined MLD6_STATS || defined __DOXYGEN__ -#define MLD6_STATS (LWIP_IPV6 && LWIP_IPV6_MLD) -#endif - -/** - * ND6_STATS==1: Enable Neighbor discovery for IPv6 stats. - */ -#if !defined ND6_STATS || defined __DOXYGEN__ -#define ND6_STATS (LWIP_IPV6) -#endif - -/** - * MIB2_STATS==1: Stats for SNMP MIB2. - */ -#if !defined MIB2_STATS || defined __DOXYGEN__ -#define MIB2_STATS 0 -#endif - -#else - -#define LINK_STATS 0 -#define ETHARP_STATS 0 -#define IP_STATS 0 -#define IPFRAG_STATS 0 -#define ICMP_STATS 0 -#define IGMP_STATS 0 -#define UDP_STATS 0 -#define TCP_STATS 0 -#define MEM_STATS 0 -#define MEMP_STATS 0 -#define SYS_STATS 0 -#define LWIP_STATS_DISPLAY 0 -#define IP6_STATS 0 -#define ICMP6_STATS 0 -#define IP6_FRAG_STATS 0 -#define MLD6_STATS 0 -#define ND6_STATS 0 -#define MIB2_STATS 0 - -#endif /* LWIP_STATS */ -/** - * @} - */ - -/* - -------------------------------------- - ---------- Checksum options ---------- - -------------------------------------- -*/ -/** - * @defgroup lwip_opts_checksum Checksum - * @ingroup lwip_opts_infrastructure - * @{ - */ -/** - * LWIP_CHECKSUM_CTRL_PER_NETIF==1: Checksum generation/check can be enabled/disabled - * per netif. - * ATTENTION: if enabled, the CHECKSUM_GEN_* and CHECKSUM_CHECK_* defines must be enabled! - */ -#if !defined LWIP_CHECKSUM_CTRL_PER_NETIF || defined __DOXYGEN__ -#define LWIP_CHECKSUM_CTRL_PER_NETIF 0 -#endif - -/** - * CHECKSUM_GEN_IP==1: Generate checksums in software for outgoing IP packets. - */ -#if !defined CHECKSUM_GEN_IP || defined __DOXYGEN__ -#define CHECKSUM_GEN_IP 1 -#endif - -/** - * CHECKSUM_GEN_UDP==1: Generate checksums in software for outgoing UDP packets. - */ -#if !defined CHECKSUM_GEN_UDP || defined __DOXYGEN__ -#define CHECKSUM_GEN_UDP 1 -#endif - -/** - * CHECKSUM_GEN_TCP==1: Generate checksums in software for outgoing TCP packets. - */ -#if !defined CHECKSUM_GEN_TCP || defined __DOXYGEN__ -#define CHECKSUM_GEN_TCP 1 -#endif - -/** - * CHECKSUM_GEN_ICMP==1: Generate checksums in software for outgoing ICMP packets. - */ -#if !defined CHECKSUM_GEN_ICMP || defined __DOXYGEN__ -#define CHECKSUM_GEN_ICMP 1 -#endif - -/** - * CHECKSUM_GEN_ICMP6==1: Generate checksums in software for outgoing ICMP6 packets. - */ -#if !defined CHECKSUM_GEN_ICMP6 || defined __DOXYGEN__ -#define CHECKSUM_GEN_ICMP6 1 -#endif - -/** - * CHECKSUM_CHECK_IP==1: Check checksums in software for incoming IP packets. - */ -#if !defined CHECKSUM_CHECK_IP || defined __DOXYGEN__ -#define CHECKSUM_CHECK_IP 1 -#endif - -/** - * CHECKSUM_CHECK_UDP==1: Check checksums in software for incoming UDP packets. - */ -#if !defined CHECKSUM_CHECK_UDP || defined __DOXYGEN__ -#define CHECKSUM_CHECK_UDP 1 -#endif - -/** - * CHECKSUM_CHECK_TCP==1: Check checksums in software for incoming TCP packets. - */ -#if !defined CHECKSUM_CHECK_TCP || defined __DOXYGEN__ -#define CHECKSUM_CHECK_TCP 1 -#endif - -/** - * CHECKSUM_CHECK_ICMP==1: Check checksums in software for incoming ICMP packets. - */ -#if !defined CHECKSUM_CHECK_ICMP || defined __DOXYGEN__ -#define CHECKSUM_CHECK_ICMP 1 -#endif - -/** - * CHECKSUM_CHECK_ICMP6==1: Check checksums in software for incoming ICMPv6 packets - */ -#if !defined CHECKSUM_CHECK_ICMP6 || defined __DOXYGEN__ -#define CHECKSUM_CHECK_ICMP6 1 -#endif - -/** - * LWIP_CHECKSUM_ON_COPY==1: Calculate checksum when copying data from - * application buffers to pbufs. - */ -#if !defined LWIP_CHECKSUM_ON_COPY || defined __DOXYGEN__ -#define LWIP_CHECKSUM_ON_COPY 0 -#endif -/** - * @} - */ - -/* - --------------------------------------- - ---------- IPv6 options --------------- - --------------------------------------- -*/ -/** - * @defgroup lwip_opts_ipv6 IPv6 - * @ingroup lwip_opts - * @{ - */ -/** - * LWIP_IPV6==1: Enable IPv6 - */ -#if !defined LWIP_IPV6 || defined __DOXYGEN__ -#define LWIP_IPV6 0 -#endif - -/** - * IPV6_REASS_MAXAGE: Maximum time (in multiples of IP6_REASS_TMR_INTERVAL - so seconds, normally) - * a fragmented IP packet waits for all fragments to arrive. If not all fragments arrived - * in this time, the whole packet is discarded. - */ -#if !defined IPV6_REASS_MAXAGE || defined __DOXYGEN__ -#define IPV6_REASS_MAXAGE 60 -#endif - -/** - * LWIP_IPV6_SCOPES==1: Enable support for IPv6 address scopes, ensuring that - * e.g. link-local addresses are really treated as link-local. Disable this - * setting only for single-interface configurations. - * All addresses that have a scope according to the default policy (link-local - * unicast addresses, interface-local and link-local multicast addresses) should - * now have a zone set on them before being passed to the core API, although - * lwIP will currently attempt to select a zone on the caller's behalf when - * necessary. Applications that directly assign IPv6 addresses to interfaces - * (which is NOT recommended) must now ensure that link-local addresses carry - * the netif's zone. See the new ip6_zone.h header file for more information and - * relevant macros. For now it is still possible to turn off scopes support - * through the new LWIP_IPV6_SCOPES option. When upgrading an implementation that - * uses the core API directly, it is highly recommended to enable - * LWIP_IPV6_SCOPES_DEBUG at least for a while, to ensure e.g. proper address - * initialization. - */ -#if !defined LWIP_IPV6_SCOPES || defined __DOXYGEN__ -#define LWIP_IPV6_SCOPES (LWIP_IPV6 && !LWIP_SINGLE_NETIF) -#endif - -/** - * LWIP_IPV6_SCOPES_DEBUG==1: Perform run-time checks to verify that addresses - * are properly zoned (see ip6_zone.h on what that means) where it matters. - * Enabling this setting is highly recommended when upgrading from an existing - * installation that is not yet scope-aware; otherwise it may be too expensive. - */ -#if !defined LWIP_IPV6_SCOPES_DEBUG || defined __DOXYGEN__ -#define LWIP_IPV6_SCOPES_DEBUG 0 -#endif - -/** - * LWIP_IPV6_NUM_ADDRESSES: Number of IPv6 addresses per netif. - */ -#if !defined LWIP_IPV6_NUM_ADDRESSES || defined __DOXYGEN__ -#define LWIP_IPV6_NUM_ADDRESSES 3 -#endif - -/** - * LWIP_IPV6_FORWARD==1: Forward IPv6 packets across netifs - */ -#if !defined LWIP_IPV6_FORWARD || defined __DOXYGEN__ -#define LWIP_IPV6_FORWARD 0 -#endif - -/** - * LWIP_IPV6_FRAG==1: Fragment outgoing IPv6 packets that are too big. - */ -#if !defined LWIP_IPV6_FRAG || defined __DOXYGEN__ -#define LWIP_IPV6_FRAG 1 -#endif - -/** - * LWIP_IPV6_REASS==1: reassemble incoming IPv6 packets that fragmented - */ -#if !defined LWIP_IPV6_REASS || defined __DOXYGEN__ -#define LWIP_IPV6_REASS LWIP_IPV6 -#endif - -/** - * LWIP_IPV6_SEND_ROUTER_SOLICIT==1: Send router solicitation messages during - * network startup. - */ -#if !defined LWIP_IPV6_SEND_ROUTER_SOLICIT || defined __DOXYGEN__ -#define LWIP_IPV6_SEND_ROUTER_SOLICIT 1 -#endif - -/** - * LWIP_IPV6_AUTOCONFIG==1: Enable stateless address autoconfiguration as per RFC 4862. - */ -#if !defined LWIP_IPV6_AUTOCONFIG || defined __DOXYGEN__ -#define LWIP_IPV6_AUTOCONFIG LWIP_IPV6 -#endif - -/** - * LWIP_IPV6_ADDRESS_LIFETIMES==1: Keep valid and preferred lifetimes for each - * IPv6 address. Required for LWIP_IPV6_AUTOCONFIG. May still be enabled - * otherwise, in which case the application may assign address lifetimes with - * the appropriate macros. Addresses with no lifetime are assumed to be static. - * If this option is disabled, all addresses are assumed to be static. - */ -#if !defined LWIP_IPV6_ADDRESS_LIFETIMES || defined __DOXYGEN__ -#define LWIP_IPV6_ADDRESS_LIFETIMES LWIP_IPV6_AUTOCONFIG -#endif - -/** - * LWIP_IPV6_DUP_DETECT_ATTEMPTS=[0..7]: Number of duplicate address detection attempts. - */ -#if !defined LWIP_IPV6_DUP_DETECT_ATTEMPTS || defined __DOXYGEN__ -#define LWIP_IPV6_DUP_DETECT_ATTEMPTS 1 -#endif -/** - * @} - */ - -/** - * @defgroup lwip_opts_icmp6 ICMP6 - * @ingroup lwip_opts_ipv6 - * @{ - */ -/** - * LWIP_ICMP6==1: Enable ICMPv6 (mandatory per RFC) - */ -#if !defined LWIP_ICMP6 || defined __DOXYGEN__ -#define LWIP_ICMP6 LWIP_IPV6 -#endif - -/** - * LWIP_ICMP6_DATASIZE: bytes from original packet to send back in - * ICMPv6 error messages. - */ -#if !defined LWIP_ICMP6_DATASIZE || defined __DOXYGEN__ -#define LWIP_ICMP6_DATASIZE 8 -#endif - -/** - * LWIP_ICMP6_HL: default hop limit for ICMPv6 messages - */ -#if !defined LWIP_ICMP6_HL || defined __DOXYGEN__ -#define LWIP_ICMP6_HL 255 -#endif -/** - * @} - */ - -/** - * @defgroup lwip_opts_mld6 Multicast listener discovery - * @ingroup lwip_opts_ipv6 - * @{ - */ -/** - * LWIP_IPV6_MLD==1: Enable multicast listener discovery protocol. - * If LWIP_IPV6 is enabled but this setting is disabled, the MAC layer must - * indiscriminately pass all inbound IPv6 multicast traffic to lwIP. - */ -#if !defined LWIP_IPV6_MLD || defined __DOXYGEN__ -#define LWIP_IPV6_MLD LWIP_IPV6 -#endif - -/** - * MEMP_NUM_MLD6_GROUP: Max number of IPv6 multicast groups that can be joined. - * There must be enough groups so that each netif can join the solicited-node - * multicast group for each of its local addresses, plus one for MDNS if - * applicable, plus any number of groups to be joined on UDP sockets. - */ -#if !defined MEMP_NUM_MLD6_GROUP || defined __DOXYGEN__ -#define MEMP_NUM_MLD6_GROUP 4 -#endif -/** - * @} - */ - -/** - * @defgroup lwip_opts_nd6 Neighbor discovery - * @ingroup lwip_opts_ipv6 - * @{ - */ -/** - * LWIP_ND6_QUEUEING==1: queue outgoing IPv6 packets while MAC address - * is being resolved. - */ -#if !defined LWIP_ND6_QUEUEING || defined __DOXYGEN__ -#define LWIP_ND6_QUEUEING LWIP_IPV6 -#endif - -/** - * MEMP_NUM_ND6_QUEUE: Max number of IPv6 packets to queue during MAC resolution. - */ -#if !defined MEMP_NUM_ND6_QUEUE || defined __DOXYGEN__ -#define MEMP_NUM_ND6_QUEUE 20 -#endif - -/** - * LWIP_ND6_NUM_NEIGHBORS: Number of entries in IPv6 neighbor cache - */ -#if !defined LWIP_ND6_NUM_NEIGHBORS || defined __DOXYGEN__ -#define LWIP_ND6_NUM_NEIGHBORS 10 -#endif - -/** - * LWIP_ND6_NUM_DESTINATIONS: number of entries in IPv6 destination cache - */ -#if !defined LWIP_ND6_NUM_DESTINATIONS || defined __DOXYGEN__ -#define LWIP_ND6_NUM_DESTINATIONS 10 -#endif - -/** - * LWIP_ND6_NUM_PREFIXES: number of entries in IPv6 on-link prefixes cache - */ -#if !defined LWIP_ND6_NUM_PREFIXES || defined __DOXYGEN__ -#define LWIP_ND6_NUM_PREFIXES 5 -#endif - -/** - * LWIP_ND6_NUM_ROUTERS: number of entries in IPv6 default router cache - */ -#if !defined LWIP_ND6_NUM_ROUTERS || defined __DOXYGEN__ -#define LWIP_ND6_NUM_ROUTERS 3 -#endif - -/** - * LWIP_ND6_MAX_MULTICAST_SOLICIT: max number of multicast solicit messages to send - * (neighbor solicit and router solicit) - */ -#if !defined LWIP_ND6_MAX_MULTICAST_SOLICIT || defined __DOXYGEN__ -#define LWIP_ND6_MAX_MULTICAST_SOLICIT 3 -#endif - -/** - * LWIP_ND6_MAX_UNICAST_SOLICIT: max number of unicast neighbor solicitation messages - * to send during neighbor reachability detection. - */ -#if !defined LWIP_ND6_MAX_UNICAST_SOLICIT || defined __DOXYGEN__ -#define LWIP_ND6_MAX_UNICAST_SOLICIT 3 -#endif - -/** - * Unused: See ND RFC (time in milliseconds). - */ -#if !defined LWIP_ND6_MAX_ANYCAST_DELAY_TIME || defined __DOXYGEN__ -#define LWIP_ND6_MAX_ANYCAST_DELAY_TIME 1000 -#endif - -/** - * Unused: See ND RFC - */ -#if !defined LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT || defined __DOXYGEN__ -#define LWIP_ND6_MAX_NEIGHBOR_ADVERTISEMENT 3 -#endif - -/** - * LWIP_ND6_REACHABLE_TIME: default neighbor reachable time (in milliseconds). - * May be updated by router advertisement messages. - */ -#if !defined LWIP_ND6_REACHABLE_TIME || defined __DOXYGEN__ -#define LWIP_ND6_REACHABLE_TIME 30000 -#endif - -/** - * LWIP_ND6_RETRANS_TIMER: default retransmission timer for solicitation messages - */ -#if !defined LWIP_ND6_RETRANS_TIMER || defined __DOXYGEN__ -#define LWIP_ND6_RETRANS_TIMER 1000 -#endif - -/** - * LWIP_ND6_DELAY_FIRST_PROBE_TIME: Delay before first unicast neighbor solicitation - * message is sent, during neighbor reachability detection. - */ -#if !defined LWIP_ND6_DELAY_FIRST_PROBE_TIME || defined __DOXYGEN__ -#define LWIP_ND6_DELAY_FIRST_PROBE_TIME 5000 -#endif - -/** - * LWIP_ND6_ALLOW_RA_UPDATES==1: Allow Router Advertisement messages to update - * Reachable time and retransmission timers, and netif MTU. - */ -#if !defined LWIP_ND6_ALLOW_RA_UPDATES || defined __DOXYGEN__ -#define LWIP_ND6_ALLOW_RA_UPDATES 1 -#endif - -/** - * LWIP_ND6_TCP_REACHABILITY_HINTS==1: Allow TCP to provide Neighbor Discovery - * with reachability hints for connected destinations. This helps avoid sending - * unicast neighbor solicitation messages. - */ -#if !defined LWIP_ND6_TCP_REACHABILITY_HINTS || defined __DOXYGEN__ -#define LWIP_ND6_TCP_REACHABILITY_HINTS 1 -#endif - -/** - * LWIP_ND6_RDNSS_MAX_DNS_SERVERS > 0: Use IPv6 Router Advertisement Recursive - * DNS Server Option (as per RFC 6106) to copy a defined maximum number of DNS - * servers to the DNS module. - */ -#if !defined LWIP_ND6_RDNSS_MAX_DNS_SERVERS || defined __DOXYGEN__ -#define LWIP_ND6_RDNSS_MAX_DNS_SERVERS 0 -#endif -/** - * @} - */ - -/** - * @defgroup lwip_opts_dhcpv6 DHCPv6 - * @ingroup lwip_opts_ipv6 - * @{ - */ -/** - * LWIP_IPV6_DHCP6==1: enable DHCPv6 stateful/stateless address autoconfiguration. - */ -#if !defined LWIP_IPV6_DHCP6 || defined __DOXYGEN__ -#define LWIP_IPV6_DHCP6 0 -#endif - -/** - * LWIP_IPV6_DHCP6_STATEFUL==1: enable DHCPv6 stateful address autoconfiguration. - * (not supported, yet!) - */ -#if !defined LWIP_IPV6_DHCP6_STATEFUL || defined __DOXYGEN__ -#define LWIP_IPV6_DHCP6_STATEFUL 0 -#endif - -/** - * LWIP_IPV6_DHCP6_STATELESS==1: enable DHCPv6 stateless address autoconfiguration. - */ -#if !defined LWIP_IPV6_DHCP6_STATELESS || defined __DOXYGEN__ -#define LWIP_IPV6_DHCP6_STATELESS LWIP_IPV6_DHCP6 -#endif - -/** - * LWIP_DHCP6_GETS_NTP==1: Request NTP servers via DHCPv6. For each - * response packet, a callback is called, which has to be provided by the port: - * void dhcp6_set_ntp_servers(u8_t num_ntp_servers, ip_addr_t* ntp_server_addrs); -*/ -#if !defined LWIP_DHCP6_GET_NTP_SRV || defined __DOXYGEN__ -#define LWIP_DHCP6_GET_NTP_SRV 0 -#endif - -/** - * The maximum of NTP servers requested - */ -#if !defined LWIP_DHCP6_MAX_NTP_SERVERS || defined __DOXYGEN__ -#define LWIP_DHCP6_MAX_NTP_SERVERS 1 -#endif - -/** - * LWIP_DHCP6_MAX_DNS_SERVERS > 0: Request DNS servers via DHCPv6. - * DNS servers received in the response are passed to DNS via @ref dns_setserver() - * (up to the maximum limit defined here). - */ -#if !defined LWIP_DHCP6_MAX_DNS_SERVERS || defined __DOXYGEN__ -#define LWIP_DHCP6_MAX_DNS_SERVERS DNS_MAX_SERVERS -#endif -/** - * @} - */ - -/* - --------------------------------------- - ---------- Hook options --------------- - --------------------------------------- -*/ - -/** - * @defgroup lwip_opts_hooks Hooks - * @ingroup lwip_opts_infrastructure - * Hooks are undefined by default, define them to a function if you need them. - * @{ - */ - -/** - * LWIP_HOOK_FILENAME: Custom filename to \#include in files that provide hooks. - * Declare your hook function prototypes in there, you may also \#include all headers - * providing data types that are need in this file. - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_FILENAME "path/to/my/lwip_hooks.h" -#endif - -/** - * LWIP_HOOK_TCP_ISN: - * Hook for generation of the Initial Sequence Number (ISN) for a new TCP - * connection. The default lwIP ISN generation algorithm is very basic and may - * allow for TCP spoofing attacks. This hook provides the means to implement - * the standardized ISN generation algorithm from RFC 6528 (see contrib/adons/tcp_isn), - * or any other desired algorithm as a replacement. - * Called from tcp_connect() and tcp_listen_input() when an ISN is needed for - * a new TCP connection, if TCP support (@ref LWIP_TCP) is enabled.\n - * Signature:\code{.c} - * u32_t my_hook_tcp_isn(const ip_addr_t* local_ip, u16_t local_port, const ip_addr_t* remote_ip, u16_t remote_port); - * \endcode - * - it may be necessary to use "struct ip_addr" (ip4_addr, ip6_addr) instead of "ip_addr_t" in function declarations\n - * Arguments: - * - local_ip: pointer to the local IP address of the connection - * - local_port: local port number of the connection (host-byte order) - * - remote_ip: pointer to the remote IP address of the connection - * - remote_port: remote port number of the connection (host-byte order)\n - * Return value: - * - the 32-bit Initial Sequence Number to use for the new TCP connection. - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_TCP_ISN(local_ip, local_port, remote_ip, remote_port) -#endif - -/** - * LWIP_HOOK_TCP_INPACKET_PCB: - * Hook for intercepting incoming packets before they are passed to a pcb. This - * allows updating some state or even dropping a packet. - * Signature:\code{.c} - * err_t my_hook_tcp_inpkt(struct tcp_pcb *pcb, struct tcp_hdr *hdr, u16_t optlen, u16_t opt1len, u8_t *opt2, struct pbuf *p); - * \endcode - * Arguments: - * - pcb: tcp_pcb selected for input of this packet (ATTENTION: this may be - * struct tcp_pcb_listen if pcb->state == LISTEN) - * - hdr: pointer to tcp header (ATTENTION: tcp options may not be in one piece!) - * - optlen: tcp option length - * - opt1len: tcp option length 1st part - * - opt2: if this is != NULL, tcp options are split among 2 pbufs. In that case, - * options start at right after the tcp header ('(u8_t*)(hdr + 1)') for - * the first 'opt1len' bytes and the rest starts at 'opt2'. opt2len can - * be simply calculated: 'opt2len = optlen - opt1len;' - * - p: input packet, p->payload points to application data (that's why tcp hdr - * and options are passed in seperately) - * Return value: - * - ERR_OK: continue input of this packet as normal - * - != ERR_OK: drop this packet for input (don't continue input processing) - * - * ATTENTION: don't call any tcp api functions that might change tcp state (pcb - * state or any pcb lists) from this callback! - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_TCP_INPACKET_PCB(pcb, hdr, optlen, opt1len, opt2, p) -#endif - -/** - * LWIP_HOOK_TCP_OUT_TCPOPT_LENGTH: - * Hook for increasing the size of the options allocated with a tcp header. - * Together with LWIP_HOOK_TCP_OUT_ADD_TCPOPTS, this can be used to add custom - * options to outgoing tcp segments. - * Signature:\code{.c} - * u8_t my_hook_tcp_out_tcpopt_length(const struct tcp_pcb *pcb, u8_t internal_option_length); - * \endcode - * Arguments: - * - pcb: tcp_pcb that transmits (ATTENTION: this may be NULL or - * struct tcp_pcb_listen if pcb->state == LISTEN) - * - internal_option_length: tcp option length used by the stack internally - * Return value: - * - a number of bytes to allocate for tcp options (internal_option_length <= ret <= 40) - * - * ATTENTION: don't call any tcp api functions that might change tcp state (pcb - * state or any pcb lists) from this callback! - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_TCP_OUT_TCPOPT_LENGTH(pcb, internal_len) -#endif - -/** - * LWIP_HOOK_TCP_OUT_ADD_TCPOPTS: - * Hook for adding custom options to outgoing tcp segments. - * Space for these custom options has to be reserved via LWIP_HOOK_TCP_OUT_TCPOPT_LENGTH. - * Signature:\code{.c} - * u32_t *my_hook_tcp_out_add_tcpopts(struct pbuf *p, struct tcp_hdr *hdr, const struct tcp_pcb *pcb, u32_t *opts); - * \endcode - * Arguments: - * - p: output packet, p->payload pointing to tcp header, data follows - * - hdr: tcp header - * - pcb: tcp_pcb that transmits (ATTENTION: this may be NULL or - * struct tcp_pcb_listen if pcb->state == LISTEN) - * - opts: pointer where to add the custom options (there may already be options - * between the header and these) - * Return value: - * - pointer pointing directly after the inserted options - * - * ATTENTION: don't call any tcp api functions that might change tcp state (pcb - * state or any pcb lists) from this callback! - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_TCP_OUT_ADD_TCPOPTS(p, hdr, pcb, opts) -#endif - -/** - * LWIP_HOOK_IP4_INPUT(pbuf, input_netif): - * Called from ip_input() (IPv4) - * Signature:\code{.c} - * int my_hook(struct pbuf *pbuf, struct netif *input_netif); - * \endcode - * Arguments: - * - pbuf: received struct pbuf passed to ip_input() - * - input_netif: struct netif on which the packet has been received - * Return values: - * - 0: Hook has not consumed the packet, packet is processed as normal - * - != 0: Hook has consumed the packet. - * If the hook consumed the packet, 'pbuf' is in the responsibility of the hook - * (i.e. free it when done). - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_IP4_INPUT(pbuf, input_netif) -#endif - -/** - * LWIP_HOOK_IP4_ROUTE(dest): - * Called from ip_route() (IPv4) - * Signature:\code{.c} - * struct netif *my_hook(const ip4_addr_t *dest); - * \endcode - * Arguments: - * - dest: destination IPv4 address - * Returns values: - * - the destination netif - * - NULL if no destination netif is found. In that case, ip_route() continues as normal. - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_IP4_ROUTE() -#endif - -/** - * LWIP_HOOK_IP4_ROUTE_SRC(src, dest): - * Source-based routing for IPv4 - called from ip_route() (IPv4) - * Signature:\code{.c} - * struct netif *my_hook(const ip4_addr_t *src, const ip4_addr_t *dest); - * \endcode - * Arguments: - * - src: local/source IPv4 address - * - dest: destination IPv4 address - * Returns values: - * - the destination netif - * - NULL if no destination netif is found. In that case, ip_route() continues as normal. - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_IP4_ROUTE_SRC(src, dest) -#endif - -/** - * LWIP_HOOK_IP4_CANFORWARD(src, dest): - * Check if an IPv4 can be forwarded - called from: - * ip4_input() -> ip4_forward() -> ip4_canforward() (IPv4) - * - source address is available via ip4_current_src_addr() - * - calling an output function in this context (e.g. multicast router) is allowed - * Signature:\code{.c} - * int my_hook(struct pbuf *p, u32_t dest_addr_hostorder); - * \endcode - * Arguments: - * - p: packet to forward - * - dest: destination IPv4 address - * Returns values: - * - 1: forward - * - 0: don't forward - * - -1: no decision. In that case, ip4_canforward() continues as normal. - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_IP4_CANFORWARD(src, dest) -#endif - -/** - * LWIP_HOOK_ETHARP_GET_GW(netif, dest): - * Called from etharp_output() (IPv4) - * Signature:\code{.c} - * const ip4_addr_t *my_hook(struct netif *netif, const ip4_addr_t *dest); - * \endcode - * Arguments: - * - netif: the netif used for sending - * - dest: the destination IPv4 address - * Return values: - * - the IPv4 address of the gateway to handle the specified destination IPv4 address - * - NULL, in which case the netif's default gateway is used - * - * The returned address MUST be directly reachable on the specified netif! - * This function is meant to implement advanced IPv4 routing together with - * LWIP_HOOK_IP4_ROUTE(). The actual routing/gateway table implementation is - * not part of lwIP but can e.g. be hidden in the netif's state argument. -*/ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_ETHARP_GET_GW(netif, dest) -#endif - -/** - * LWIP_HOOK_IP6_INPUT(pbuf, input_netif): - * Called from ip6_input() (IPv6) - * Signature:\code{.c} - * int my_hook(struct pbuf *pbuf, struct netif *input_netif); - * \endcode - * Arguments: - * - pbuf: received struct pbuf passed to ip6_input() - * - input_netif: struct netif on which the packet has been received - * Return values: - * - 0: Hook has not consumed the packet, packet is processed as normal - * - != 0: Hook has consumed the packet. - * If the hook consumed the packet, 'pbuf' is in the responsibility of the hook - * (i.e. free it when done). - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_IP6_INPUT(pbuf, input_netif) -#endif - -/** - * LWIP_HOOK_IP6_ROUTE(src, dest): - * Called from ip_route() (IPv6) - * Signature:\code{.c} - * struct netif *my_hook(const ip6_addr_t *dest, const ip6_addr_t *src); - * \endcode - * Arguments: - * - src: source IPv6 address - * - dest: destination IPv6 address - * Return values: - * - the destination netif - * - NULL if no destination netif is found. In that case, ip6_route() continues as normal. - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_IP6_ROUTE(src, dest) -#endif - -/** - * LWIP_HOOK_ND6_GET_GW(netif, dest): - * Called from nd6_get_next_hop_entry() (IPv6) - * Signature:\code{.c} - * const ip6_addr_t *my_hook(struct netif *netif, const ip6_addr_t *dest); - * \endcode - * Arguments: - * - netif: the netif used for sending - * - dest: the destination IPv6 address - * Return values: - * - the IPv6 address of the next hop to handle the specified destination IPv6 address - * - NULL, in which case a NDP-discovered router is used instead - * - * The returned address MUST be directly reachable on the specified netif! - * This function is meant to implement advanced IPv6 routing together with - * LWIP_HOOK_IP6_ROUTE(). The actual routing/gateway table implementation is - * not part of lwIP but can e.g. be hidden in the netif's state argument. -*/ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_ND6_GET_GW(netif, dest) -#endif - -/** - * LWIP_HOOK_VLAN_CHECK(netif, eth_hdr, vlan_hdr): - * Called from ethernet_input() if VLAN support is enabled - * Signature:\code{.c} - * int my_hook(struct netif *netif, struct eth_hdr *eth_hdr, struct eth_vlan_hdr *vlan_hdr); - * \endcode - * Arguments: - * - netif: struct netif on which the packet has been received - * - eth_hdr: struct eth_hdr of the packet - * - vlan_hdr: struct eth_vlan_hdr of the packet - * Return values: - * - 0: Packet must be dropped. - * - != 0: Packet must be accepted. - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_VLAN_CHECK(netif, eth_hdr, vlan_hdr) -#endif - -/** - * LWIP_HOOK_VLAN_SET: - * Hook can be used to set prio_vid field of vlan_hdr. If you need to store data - * on per-netif basis to implement this callback, see @ref netif_cd. - * Called from ethernet_output() if VLAN support (@ref ETHARP_SUPPORT_VLAN) is enabled.\n - * Signature:\code{.c} - * s32_t my_hook_vlan_set(struct netif* netif, struct pbuf* pbuf, const struct eth_addr* src, const struct eth_addr* dst, u16_t eth_type);\n - * \endcode - * Arguments: - * - netif: struct netif that the packet will be sent through - * - p: struct pbuf packet to be sent - * - src: source eth address - * - dst: destination eth address - * - eth_type: ethernet type to packet to be sent\n - * - * - * Return values: - * - <0: Packet shall not contain VLAN header. - * - 0 <= return value <= 0xFFFF: Packet shall contain VLAN header. Return value is prio_vid in host byte order. - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_VLAN_SET(netif, p, src, dst, eth_type) -#endif - -/** - * LWIP_HOOK_MEMP_AVAILABLE(memp_t_type): - * Called from memp_free() when a memp pool was empty and an item is now available - * Signature:\code{.c} - * void my_hook(memp_t type); - * \endcode - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_MEMP_AVAILABLE(memp_t_type) -#endif - -/** - * LWIP_HOOK_UNKNOWN_ETH_PROTOCOL(pbuf, netif): - * Called from ethernet_input() when an unknown eth type is encountered. - * Signature:\code{.c} - * err_t my_hook(struct pbuf* pbuf, struct netif* netif); - * \endcode - * Arguments: - * - p: rx packet with unknown eth type - * - netif: netif on which the packet has been received - * Return values: - * - ERR_OK if packet is accepted (hook function now owns the pbuf) - * - any error code otherwise (pbuf is freed) - * - * Payload points to ethernet header! - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_UNKNOWN_ETH_PROTOCOL(pbuf, netif) -#endif - -/** - * LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, state, msg, msg_type, options_len_ptr): - * Called from various dhcp functions when sending a DHCP message. - * This hook is called just before the DHCP message trailer is added, so the - * options are at the end of a DHCP message. - * Signature:\code{.c} - * void my_hook(struct netif *netif, struct dhcp *dhcp, u8_t state, struct dhcp_msg *msg, - * u8_t msg_type, u16_t *options_len_ptr); - * \endcode - * Arguments: - * - netif: struct netif that the packet will be sent through - * - dhcp: struct dhcp on that netif - * - state: current dhcp state (dhcp_state_enum_t as an u8_t) - * - msg: struct dhcp_msg that will be sent - * - msg_type: dhcp message type to be sent (u8_t) - * - options_len_ptr: pointer to the current length of options in the dhcp_msg "msg" - * (must be increased when options are added!) - * - * Options need to appended like this: - * LWIP_ASSERT("dhcp option overflow", *options_len_ptr + option_len + 2 <= DHCP_OPTIONS_LEN); - * msg->options[(*options_len_ptr)++] = <option_number>; - * msg->options[(*options_len_ptr)++] = <option_len>; - * msg->options[(*options_len_ptr)++] = <option_bytes>; - * [...] - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_DHCP_APPEND_OPTIONS(netif, dhcp, state, msg, msg_type, options_len_ptr) -#endif - -/** - * LWIP_HOOK_DHCP_PARSE_OPTION(netif, dhcp, state, msg, msg_type, option, len, pbuf, option_value_offset): - * Called from dhcp_parse_reply when receiving a DHCP message. - * This hook is called for every option in the received message that is not handled internally. - * Signature:\code{.c} - * void my_hook(struct netif *netif, struct dhcp *dhcp, u8_t state, struct dhcp_msg *msg, - * u8_t msg_type, u8_t option, u8_t option_len, struct pbuf *pbuf, u16_t option_value_offset); - * \endcode - * Arguments: - * - netif: struct netif that the packet will be sent through - * - dhcp: struct dhcp on that netif - * - state: current dhcp state (dhcp_state_enum_t as an u8_t) - * - msg: struct dhcp_msg that was received - * - msg_type: dhcp message type received (u8_t, ATTENTION: only valid after - * the message type option has been parsed!) - * - option: option value (u8_t) - * - len: option data length (u8_t) - * - pbuf: pbuf where option data is contained - * - option_value_offset: offset in pbuf where option data begins - * - * A nice way to get the option contents is pbuf_get_contiguous(): - * u8_t buf[32]; - * u8_t *ptr = (u8_t*)pbuf_get_contiguous(p, buf, sizeof(buf), LWIP_MIN(option_len, sizeof(buf)), offset); - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_DHCP_PARSE_OPTION(netif, dhcp, state, msg, msg_type, option, len, pbuf, offset) -#endif - -/** - * LWIP_HOOK_DHCP6_APPEND_OPTIONS(netif, dhcp6, state, msg, msg_type, options_len_ptr, max_len): - * Called from various dhcp6 functions when sending a DHCP6 message. - * This hook is called just before the DHCP6 message is sent, so the - * options are at the end of a DHCP6 message. - * Signature:\code{.c} - * void my_hook(struct netif *netif, struct dhcp6 *dhcp, u8_t state, struct dhcp6_msg *msg, - * u8_t msg_type, u16_t *options_len_ptr); - * \endcode - * Arguments: - * - netif: struct netif that the packet will be sent through - * - dhcp6: struct dhcp6 on that netif - * - state: current dhcp6 state (dhcp6_state_enum_t as an u8_t) - * - msg: struct dhcp6_msg that will be sent - * - msg_type: dhcp6 message type to be sent (u8_t) - * - options_len_ptr: pointer to the current length of options in the dhcp6_msg "msg" - * (must be increased when options are added!) - * - * Options need to appended like this: - * u8_t *options = (u8_t *)(msg + 1); - * LWIP_ASSERT("dhcp option overflow", sizeof(struct dhcp6_msg) + *options_len_ptr + newoptlen <= max_len); - * options[(*options_len_ptr)++] = <option_data>; - * [...] - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_DHCP6_APPEND_OPTIONS(netif, dhcp6, state, msg, msg_type, options_len_ptr, max_len) -#endif - -/** - * LWIP_HOOK_SOCKETS_SETSOCKOPT(s, sock, level, optname, optval, optlen, err) - * Called from socket API to implement setsockopt() for options not provided by lwIP. - * Core lock is held when this hook is called. - * Signature:\code{.c} - * int my_hook(int s, struct lwip_sock *sock, int level, int optname, const void *optval, socklen_t optlen, int *err) - * \endcode - * Arguments: - * - s: socket file descriptor - * - sock: internal socket descriptor (see lwip/priv/sockets_priv.h) - * - level: protocol level at which the option resides - * - optname: option to set - * - optval: value to set - * - optlen: size of optval - * - err: output error - * Return values: - * - 0: Hook has not consumed the option, code continues as normal (to internal options) - * - != 0: Hook has consumed the option, 'err' is returned - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_SOCKETS_SETSOCKOPT(s, sock, level, optname, optval, optlen, err) -#endif - -/** - * LWIP_HOOK_SOCKETS_GETSOCKOPT(s, sock, level, optname, optval, optlen, err) - * Called from socket API to implement getsockopt() for options not provided by lwIP. - * Core lock is held when this hook is called. - * Signature:\code{.c} - * int my_hook(int s, struct lwip_sock *sock, int level, int optname, void *optval, socklen_t *optlen, int *err) - * \endcode - * Arguments: - * - s: socket file descriptor - * - sock: internal socket descriptor (see lwip/priv/sockets_priv.h) - * - level: protocol level at which the option resides - * - optname: option to get - * - optval: value to get - * - optlen: size of optval - * - err: output error - * Return values: - * - 0: Hook has not consumed the option, code continues as normal (to internal options) - * - != 0: Hook has consumed the option, 'err' is returned - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_SOCKETS_GETSOCKOPT(s, sock, level, optname, optval, optlen, err) -#endif - -/** - * LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE(name, addr, addrtype, err) - * Called from netconn APIs (not usable with callback apps) allowing an - * external DNS resolver (which uses sequential API) to handle the query. - * Signature:\code{.c} - * int my_hook(const char *name, ip_addr_t *addr, u8_t addrtype, err_t *err) - * \endcode - * Arguments: - * - name: hostname to resolve - * - addr: output host address - * - addrtype: type of address to query - * - err: output error - * Return values: - * - 0: Hook has not consumed hostname query, query continues into DNS module - * - != 0: Hook has consumed the query - * - * err must also be checked to determine if the hook consumed the query, but - * the query failed - */ -#ifdef __DOXYGEN__ -#define LWIP_HOOK_NETCONN_EXTERNAL_RESOLVE(name, addr, addrtype, err) -#endif -/** - * @} - */ - -/* - --------------------------------------- - ---------- Debugging options ---------- - --------------------------------------- -*/ -/** - * @defgroup lwip_opts_debugmsg Debug messages - * @ingroup lwip_opts_debug - * @{ - */ -/** - * LWIP_DBG_MIN_LEVEL: After masking, the value of the debug is - * compared against this value. If it is smaller, then debugging - * messages are written. - * @see debugging_levels - */ -#if !defined LWIP_DBG_MIN_LEVEL || defined __DOXYGEN__ -#define LWIP_DBG_MIN_LEVEL LWIP_DBG_LEVEL_ALL -#endif - -/** - * LWIP_DBG_TYPES_ON: A mask that can be used to globally enable/disable - * debug messages of certain types. - * @see debugging_levels - */ -#if !defined LWIP_DBG_TYPES_ON || defined __DOXYGEN__ -#define LWIP_DBG_TYPES_ON LWIP_DBG_ON -#endif - -/** - * ETHARP_DEBUG: Enable debugging in etharp.c. - */ -#if !defined ETHARP_DEBUG || defined __DOXYGEN__ -#define ETHARP_DEBUG LWIP_DBG_OFF -#endif - -/** - * NETIF_DEBUG: Enable debugging in netif.c. - */ -#if !defined NETIF_DEBUG || defined __DOXYGEN__ -#define NETIF_DEBUG LWIP_DBG_OFF -#endif - -/** - * PBUF_DEBUG: Enable debugging in pbuf.c. - */ -#if !defined PBUF_DEBUG || defined __DOXYGEN__ -#define PBUF_DEBUG LWIP_DBG_OFF -#endif - -/** - * API_LIB_DEBUG: Enable debugging in api_lib.c. - */ -#if !defined API_LIB_DEBUG || defined __DOXYGEN__ -#define API_LIB_DEBUG LWIP_DBG_OFF -#endif - -/** - * API_MSG_DEBUG: Enable debugging in api_msg.c. - */ -#if !defined API_MSG_DEBUG || defined __DOXYGEN__ -#define API_MSG_DEBUG LWIP_DBG_OFF -#endif - -/** - * SOCKETS_DEBUG: Enable debugging in sockets.c. - */ -#if !defined SOCKETS_DEBUG || defined __DOXYGEN__ -#define SOCKETS_DEBUG LWIP_DBG_OFF -#endif - -/** - * ICMP_DEBUG: Enable debugging in icmp.c. - */ -#if !defined ICMP_DEBUG || defined __DOXYGEN__ -#define ICMP_DEBUG LWIP_DBG_OFF -#endif - -/** - * IGMP_DEBUG: Enable debugging in igmp.c. - */ -#if !defined IGMP_DEBUG || defined __DOXYGEN__ -#define IGMP_DEBUG LWIP_DBG_OFF -#endif - -/** - * INET_DEBUG: Enable debugging in inet.c. - */ -#if !defined INET_DEBUG || defined __DOXYGEN__ -#define INET_DEBUG LWIP_DBG_OFF -#endif - -/** - * IP_DEBUG: Enable debugging for IP. - */ -#if !defined IP_DEBUG || defined __DOXYGEN__ -#define IP_DEBUG LWIP_DBG_OFF -#endif - -/** - * IP_REASS_DEBUG: Enable debugging in ip_frag.c for both frag & reass. - */ -#if !defined IP_REASS_DEBUG || defined __DOXYGEN__ -#define IP_REASS_DEBUG LWIP_DBG_OFF -#endif - -/** - * RAW_DEBUG: Enable debugging in raw.c. - */ -#if !defined RAW_DEBUG || defined __DOXYGEN__ -#define RAW_DEBUG LWIP_DBG_OFF -#endif - -/** - * MEM_DEBUG: Enable debugging in mem.c. - */ -#if !defined MEM_DEBUG || defined __DOXYGEN__ -#define MEM_DEBUG LWIP_DBG_OFF -#endif - -/** - * MEMP_DEBUG: Enable debugging in memp.c. - */ -#if !defined MEMP_DEBUG || defined __DOXYGEN__ -#define MEMP_DEBUG LWIP_DBG_OFF -#endif - -/** - * SYS_DEBUG: Enable debugging in sys.c. - */ -#if !defined SYS_DEBUG || defined __DOXYGEN__ -#define SYS_DEBUG LWIP_DBG_OFF -#endif - -/** - * TIMERS_DEBUG: Enable debugging in timers.c. - */ -#if !defined TIMERS_DEBUG || defined __DOXYGEN__ -#define TIMERS_DEBUG LWIP_DBG_OFF -#endif - -/** - * TCP_DEBUG: Enable debugging for TCP. - */ -#if !defined TCP_DEBUG || defined __DOXYGEN__ -#define TCP_DEBUG LWIP_DBG_OFF -#endif - -/** - * TCP_INPUT_DEBUG: Enable debugging in tcp_in.c for incoming debug. - */ -#if !defined TCP_INPUT_DEBUG || defined __DOXYGEN__ -#define TCP_INPUT_DEBUG LWIP_DBG_OFF -#endif - -/** - * TCP_FR_DEBUG: Enable debugging in tcp_in.c for fast retransmit. - */ -#if !defined TCP_FR_DEBUG || defined __DOXYGEN__ -#define TCP_FR_DEBUG LWIP_DBG_OFF -#endif - -/** - * TCP_RTO_DEBUG: Enable debugging in TCP for retransmit - * timeout. - */ -#if !defined TCP_RTO_DEBUG || defined __DOXYGEN__ -#define TCP_RTO_DEBUG LWIP_DBG_OFF -#endif - -/** - * TCP_CWND_DEBUG: Enable debugging for TCP congestion window. - */ -#if !defined TCP_CWND_DEBUG || defined __DOXYGEN__ -#define TCP_CWND_DEBUG LWIP_DBG_OFF -#endif - -/** - * TCP_WND_DEBUG: Enable debugging in tcp_in.c for window updating. - */ -#if !defined TCP_WND_DEBUG || defined __DOXYGEN__ -#define TCP_WND_DEBUG LWIP_DBG_OFF -#endif - -/** - * TCP_OUTPUT_DEBUG: Enable debugging in tcp_out.c output functions. - */ -#if !defined TCP_OUTPUT_DEBUG || defined __DOXYGEN__ -#define TCP_OUTPUT_DEBUG LWIP_DBG_OFF -#endif - -/** - * TCP_RST_DEBUG: Enable debugging for TCP with the RST message. - */ -#if !defined TCP_RST_DEBUG || defined __DOXYGEN__ -#define TCP_RST_DEBUG LWIP_DBG_OFF -#endif - -/** - * TCP_QLEN_DEBUG: Enable debugging for TCP queue lengths. - */ -#if !defined TCP_QLEN_DEBUG || defined __DOXYGEN__ -#define TCP_QLEN_DEBUG LWIP_DBG_OFF -#endif - -/** - * UDP_DEBUG: Enable debugging in UDP. - */ -#if !defined UDP_DEBUG || defined __DOXYGEN__ -#define UDP_DEBUG LWIP_DBG_OFF -#endif - -/** - * TCPIP_DEBUG: Enable debugging in tcpip.c. - */ -#if !defined TCPIP_DEBUG || defined __DOXYGEN__ -#define TCPIP_DEBUG LWIP_DBG_OFF -#endif - -/** - * SLIP_DEBUG: Enable debugging in slipif.c. - */ -#if !defined SLIP_DEBUG || defined __DOXYGEN__ -#define SLIP_DEBUG LWIP_DBG_OFF -#endif - -/** - * DHCP_DEBUG: Enable debugging in dhcp.c. - */ -#if !defined DHCP_DEBUG || defined __DOXYGEN__ -#define DHCP_DEBUG LWIP_DBG_OFF -#endif - -/** - * AUTOIP_DEBUG: Enable debugging in autoip.c. - */ -#if !defined AUTOIP_DEBUG || defined __DOXYGEN__ -#define AUTOIP_DEBUG LWIP_DBG_OFF -#endif - -/** - * DNS_DEBUG: Enable debugging for DNS. - */ -#if !defined DNS_DEBUG || defined __DOXYGEN__ -#define DNS_DEBUG LWIP_DBG_OFF -#endif - -/** - * IP6_DEBUG: Enable debugging for IPv6. - */ -#if !defined IP6_DEBUG || defined __DOXYGEN__ -#define IP6_DEBUG LWIP_DBG_OFF -#endif - -/** - * DHCP6_DEBUG: Enable debugging in dhcp6.c. - */ -#if !defined DHCP6_DEBUG || defined __DOXYGEN__ -#define DHCP6_DEBUG LWIP_DBG_OFF -#endif -/** - * @} - */ - -/** - * LWIP_TESTMODE: Changes to make unit test possible - */ -#if !defined LWIP_TESTMODE -#define LWIP_TESTMODE 0 -#endif - -/* - -------------------------------------------------- - ---------- Performance tracking options ---------- - -------------------------------------------------- -*/ -/** - * @defgroup lwip_opts_perf Performance - * @ingroup lwip_opts_debug - * @{ - */ -/** - * LWIP_PERF: Enable performance testing for lwIP - * (if enabled, arch/perf.h is included) - */ -#if !defined LWIP_PERF || defined __DOXYGEN__ -#define LWIP_PERF 0 -#endif -/** - * @} - */ - -#endif /* LWIP_HDR_OPT_H */ diff --git a/core/c/include/lwip/pbuf.h b/core/c/include/lwip/pbuf.h deleted file mode 100755 index 328c772..0000000 --- a/core/c/include/lwip/pbuf.h +++ /dev/null @@ -1,322 +0,0 @@ -/** - * @file - * pbuf API - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#ifndef LWIP_HDR_PBUF_H -#define LWIP_HDR_PBUF_H - -#include "lwip/opt.h" -#include "lwip/err.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** LWIP_SUPPORT_CUSTOM_PBUF==1: Custom pbufs behave much like their pbuf type - * but they are allocated by external code (initialised by calling - * pbuf_alloced_custom()) and when pbuf_free gives up their last reference, they - * are freed by calling pbuf_custom->custom_free_function(). - * Currently, the pbuf_custom code is only needed for one specific configuration - * of IP_FRAG, unless required by external driver/application code. */ -#ifndef LWIP_SUPPORT_CUSTOM_PBUF -#define LWIP_SUPPORT_CUSTOM_PBUF ((IP_FRAG && !LWIP_NETIF_TX_SINGLE_PBUF) || (LWIP_IPV6 && LWIP_IPV6_FRAG)) -#endif - -/** @ingroup pbuf - * PBUF_NEEDS_COPY(p): return a boolean value indicating whether the given - * pbuf needs to be copied in order to be kept around beyond the current call - * stack without risking being corrupted. The default setting provides safety: - * it will make a copy iof any pbuf chain that does not consist entirely of - * PBUF_ROM type pbufs. For setups with zero-copy support, it may be redefined - * to evaluate to true in all cases, for example. However, doing so also has an - * effect on the application side: any buffers that are *not* copied must also - * *not* be reused by the application after passing them to lwIP. For example, - * when setting PBUF_NEEDS_COPY to (0), after using udp_send() with a PBUF_RAM - * pbuf, the application must free the pbuf immediately, rather than reusing it - * for other purposes. For more background information on this, see tasks #6735 - * and #7896, and bugs #11400 and #49914. */ -#ifndef PBUF_NEEDS_COPY -#define PBUF_NEEDS_COPY(p) ((p)->type_internal & PBUF_TYPE_FLAG_DATA_VOLATILE) -#endif /* PBUF_NEEDS_COPY */ - -/* @todo: We need a mechanism to prevent wasting memory in every pbuf - (TCP vs. UDP, IPv4 vs. IPv6: UDP/IPv4 packets may waste up to 28 bytes) */ - -#define PBUF_TRANSPORT_HLEN 20 -#if LWIP_IPV6 -#define PBUF_IP_HLEN 40 -#else -#define PBUF_IP_HLEN 20 -#endif - -/** - * @ingroup pbuf - * Enumeration of pbuf layers - */ -typedef enum { - /** Includes spare room for transport layer header, e.g. UDP header. - * Use this if you intend to pass the pbuf to functions like udp_send(). - */ - PBUF_TRANSPORT = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN, - /** Includes spare room for IP header. - * Use this if you intend to pass the pbuf to functions like raw_send(). - */ - PBUF_IP = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN, - /** Includes spare room for link layer header (ethernet header). - * Use this if you intend to pass the pbuf to functions like ethernet_output(). - * @see PBUF_LINK_HLEN - */ - PBUF_LINK = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN, - /** Includes spare room for additional encapsulation header before ethernet - * headers (e.g. 802.11). - * Use this if you intend to pass the pbuf to functions like netif->linkoutput(). - * @see PBUF_LINK_ENCAPSULATION_HLEN - */ - PBUF_RAW_TX = PBUF_LINK_ENCAPSULATION_HLEN, - /** Use this for input packets in a netif driver when calling netif->input() - * in the most common case - ethernet-layer netif driver. */ - PBUF_RAW = 0 -} pbuf_layer; - - -/* Base flags for pbuf_type definitions: */ - -/** Indicates that the payload directly follows the struct pbuf. - * This makes @ref pbuf_header work in both directions. */ -#define PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS 0x80 -/** Indicates the data stored in this pbuf can change. If this pbuf needs - * to be queued, it must be copied/duplicated. */ -#define PBUF_TYPE_FLAG_DATA_VOLATILE 0x40 -/** 4 bits are reserved for 16 allocation sources (e.g. heap, pool1, pool2, etc) - * Internally, we use: 0=heap, 1=MEMP_PBUF, 2=MEMP_PBUF_POOL -> 13 types free*/ -#define PBUF_TYPE_ALLOC_SRC_MASK 0x0F -/** Indicates this pbuf is used for RX (if not set, indicates use for TX). - * This information can be used to keep some spare RX buffers e.g. for - * receiving TCP ACKs to unblock a connection) */ -#define PBUF_ALLOC_FLAG_RX 0x0100 -/** Indicates the application needs the pbuf payload to be in one piece */ -#define PBUF_ALLOC_FLAG_DATA_CONTIGUOUS 0x0200 - -#define PBUF_TYPE_ALLOC_SRC_MASK_STD_HEAP 0x00 -#define PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF 0x01 -#define PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF_POOL 0x02 -/** First pbuf allocation type for applications */ -#define PBUF_TYPE_ALLOC_SRC_MASK_APP_MIN 0x03 -/** Last pbuf allocation type for applications */ -#define PBUF_TYPE_ALLOC_SRC_MASK_APP_MAX PBUF_TYPE_ALLOC_SRC_MASK - -/** - * @ingroup pbuf - * Enumeration of pbuf types - */ -typedef enum { - /** pbuf data is stored in RAM, used for TX mostly, struct pbuf and its payload - are allocated in one piece of contiguous memory (so the first payload byte - can be calculated from struct pbuf). - pbuf_alloc() allocates PBUF_RAM pbufs as unchained pbufs (although that might - change in future versions). - This should be used for all OUTGOING packets (TX).*/ - PBUF_RAM = (PBUF_ALLOC_FLAG_DATA_CONTIGUOUS | PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS | PBUF_TYPE_ALLOC_SRC_MASK_STD_HEAP), - /** pbuf data is stored in ROM, i.e. struct pbuf and its payload are located in - totally different memory areas. Since it points to ROM, payload does not - have to be copied when queued for transmission. */ - PBUF_ROM = PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF, - /** pbuf comes from the pbuf pool. Much like PBUF_ROM but payload might change - so it has to be duplicated when queued before transmitting, depending on - who has a 'ref' to it. */ - PBUF_REF = (PBUF_TYPE_FLAG_DATA_VOLATILE | PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF), - /** pbuf payload refers to RAM. This one comes from a pool and should be used - for RX. Payload can be chained (scatter-gather RX) but like PBUF_RAM, struct - pbuf and its payload are allocated in one piece of contiguous memory (so - the first payload byte can be calculated from struct pbuf). - Don't use this for TX, if the pool becomes empty e.g. because of TCP queuing, - you are unable to receive TCP acks! */ - PBUF_POOL = (PBUF_ALLOC_FLAG_RX | PBUF_TYPE_FLAG_STRUCT_DATA_CONTIGUOUS | PBUF_TYPE_ALLOC_SRC_MASK_STD_MEMP_PBUF_POOL) -} pbuf_type; - - -/** indicates this packet's data should be immediately passed to the application */ -#define PBUF_FLAG_PUSH 0x01U -/** indicates this is a custom pbuf: pbuf_free calls pbuf_custom->custom_free_function() - when the last reference is released (plus custom PBUF_RAM cannot be trimmed) */ -#define PBUF_FLAG_IS_CUSTOM 0x02U -/** indicates this pbuf is UDP multicast to be looped back */ -#define PBUF_FLAG_MCASTLOOP 0x04U -/** indicates this pbuf was received as link-level broadcast */ -#define PBUF_FLAG_LLBCAST 0x08U -/** indicates this pbuf was received as link-level multicast */ -#define PBUF_FLAG_LLMCAST 0x10U -/** indicates this pbuf includes a TCP FIN flag */ -#define PBUF_FLAG_TCP_FIN 0x20U - -/** Main packet buffer struct */ -struct pbuf { - /** next pbuf in singly linked pbuf chain */ - struct pbuf *next; - - /** pointer to the actual data in the buffer */ - void *payload; - - /** - * total length of this buffer and all next buffers in chain - * belonging to the same packet. - * - * For non-queue packet chains this is the invariant: - * p->tot_len == p->len + (p->next? p->next->tot_len: 0) - */ - u16_t tot_len; - - /** length of this buffer */ - u16_t len; - - /** a bit field indicating pbuf type and allocation sources - (see PBUF_TYPE_FLAG_*, PBUF_ALLOC_FLAG_* and PBUF_TYPE_ALLOC_SRC_MASK) - */ - u8_t type_internal; - - /** misc flags */ - u8_t flags; - - /** - * the reference count always equals the number of pointers - * that refer to this pbuf. This can be pointers from an application, - * the stack itself, or pbuf->next pointers from a chain. - */ - LWIP_PBUF_REF_T ref; - - /** For incoming packets, this contains the input netif's index */ - u8_t if_idx; -}; - - -/** Helper struct for const-correctness only. - * The only meaning of this one is to provide a const payload pointer - * for PBUF_ROM type. - */ -struct pbuf_rom { - /** next pbuf in singly linked pbuf chain */ - struct pbuf *next; - - /** pointer to the actual data in the buffer */ - const void *payload; -}; - -#if LWIP_SUPPORT_CUSTOM_PBUF -/** Prototype for a function to free a custom pbuf */ -typedef void (*pbuf_free_custom_fn)(struct pbuf *p); - -/** A custom pbuf: like a pbuf, but following a function pointer to free it. */ -struct pbuf_custom { - /** The actual pbuf */ - struct pbuf pbuf; - /** This function is called when pbuf_free deallocates this pbuf(_custom) */ - pbuf_free_custom_fn custom_free_function; -}; -#endif /* LWIP_SUPPORT_CUSTOM_PBUF */ - -/** Define this to 0 to prevent freeing ooseq pbufs when the PBUF_POOL is empty */ -#ifndef PBUF_POOL_FREE_OOSEQ -#define PBUF_POOL_FREE_OOSEQ 1 -#endif /* PBUF_POOL_FREE_OOSEQ */ -#if LWIP_TCP && TCP_QUEUE_OOSEQ && NO_SYS && PBUF_POOL_FREE_OOSEQ -extern volatile u8_t pbuf_free_ooseq_pending; -void pbuf_free_ooseq(void); -/** When not using sys_check_timeouts(), call PBUF_CHECK_FREE_OOSEQ() - at regular intervals from main level to check if ooseq pbufs need to be - freed! */ -#define PBUF_CHECK_FREE_OOSEQ() do { if(pbuf_free_ooseq_pending) { \ - /* pbuf_alloc() reported PBUF_POOL to be empty -> try to free some \ - ooseq queued pbufs now */ \ - pbuf_free_ooseq(); }}while(0) -#else /* LWIP_TCP && TCP_QUEUE_OOSEQ && NO_SYS && PBUF_POOL_FREE_OOSEQ */ - /* Otherwise declare an empty PBUF_CHECK_FREE_OOSEQ */ - #define PBUF_CHECK_FREE_OOSEQ() -#endif /* LWIP_TCP && TCP_QUEUE_OOSEQ && NO_SYS && PBUF_POOL_FREE_OOSEQ*/ - -/* Initializes the pbuf module. This call is empty for now, but may not be in future. */ -#define pbuf_init() - -struct pbuf *pbuf_alloc(pbuf_layer l, u16_t length, pbuf_type type); -struct pbuf *pbuf_alloc_reference(void *payload, u16_t length, pbuf_type type); -#if LWIP_SUPPORT_CUSTOM_PBUF -struct pbuf *pbuf_alloced_custom(pbuf_layer l, u16_t length, pbuf_type type, - struct pbuf_custom *p, void *payload_mem, - u16_t payload_mem_len); -#endif /* LWIP_SUPPORT_CUSTOM_PBUF */ -void pbuf_realloc(struct pbuf *p, u16_t size); -#define pbuf_get_allocsrc(p) ((p)->type_internal & PBUF_TYPE_ALLOC_SRC_MASK) -#define pbuf_match_allocsrc(p, type) (pbuf_get_allocsrc(p) == ((type) & PBUF_TYPE_ALLOC_SRC_MASK)) -#define pbuf_match_type(p, type) pbuf_match_allocsrc(p, type) -u8_t pbuf_header(struct pbuf *p, s16_t header_size); -u8_t pbuf_header_force(struct pbuf *p, s16_t header_size); -u8_t pbuf_add_header(struct pbuf *p, size_t header_size_increment); -u8_t pbuf_add_header_force(struct pbuf *p, size_t header_size_increment); -u8_t pbuf_remove_header(struct pbuf *p, size_t header_size); -struct pbuf *pbuf_free_header(struct pbuf *q, u16_t size); -void pbuf_ref(struct pbuf *p); -u8_t pbuf_free(struct pbuf *p); -u16_t pbuf_clen(const struct pbuf *p); -void pbuf_cat(struct pbuf *head, struct pbuf *tail); -void pbuf_chain(struct pbuf *head, struct pbuf *tail); -struct pbuf *pbuf_dechain(struct pbuf *p); -err_t pbuf_copy(struct pbuf *p_to, const struct pbuf *p_from); -u16_t pbuf_copy_partial(const struct pbuf *p, void *dataptr, u16_t len, u16_t offset); -void *pbuf_get_contiguous(const struct pbuf *p, void *buffer, size_t bufsize, u16_t len, u16_t offset); -err_t pbuf_take(struct pbuf *buf, const void *dataptr, u16_t len); -err_t pbuf_take_at(struct pbuf *buf, const void *dataptr, u16_t len, u16_t offset); -struct pbuf *pbuf_skip(struct pbuf* in, u16_t in_offset, u16_t* out_offset); -struct pbuf *pbuf_coalesce(struct pbuf *p, pbuf_layer layer); -struct pbuf *pbuf_clone(pbuf_layer l, pbuf_type type, struct pbuf *p); -#if LWIP_CHECKSUM_ON_COPY -err_t pbuf_fill_chksum(struct pbuf *p, u16_t start_offset, const void *dataptr, - u16_t len, u16_t *chksum); -#endif /* LWIP_CHECKSUM_ON_COPY */ -#if LWIP_TCP && TCP_QUEUE_OOSEQ && LWIP_WND_SCALE -void pbuf_split_64k(struct pbuf *p, struct pbuf **rest); -#endif /* LWIP_TCP && TCP_QUEUE_OOSEQ && LWIP_WND_SCALE */ - -u8_t pbuf_get_at(const struct pbuf* p, u16_t offset); -int pbuf_try_get_at(const struct pbuf* p, u16_t offset); -void pbuf_put_at(struct pbuf* p, u16_t offset, u8_t data); -u16_t pbuf_memcmp(const struct pbuf* p, u16_t offset, const void* s2, u16_t n); -u16_t pbuf_memfind(const struct pbuf* p, const void* mem, u16_t mem_len, u16_t start_offset); -u16_t pbuf_strstr(const struct pbuf* p, const char* substr); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PBUF_H */ diff --git a/core/c/include/lwip/priv/altcp_priv.h b/core/c/include/lwip/priv/altcp_priv.h deleted file mode 100755 index 381fc96..0000000 --- a/core/c/include/lwip/priv/altcp_priv.h +++ /dev/null @@ -1,146 +0,0 @@ -/** - * @file - * Application layered TCP connection API (to be used from TCPIP thread)\n - * This interface mimics the tcp callback API to the application while preventing - * direct linking (much like virtual functions). - * This way, an application can make use of other application layer protocols - * on top of TCP without knowing the details (e.g. TLS, proxy connection). - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_ALTCP_PRIV_H -#define LWIP_HDR_ALTCP_PRIV_H - -#include "lwip/opt.h" - -#if LWIP_ALTCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/altcp.h" -#include "lwip/ip_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct altcp_pcb *altcp_alloc(void); -void altcp_free(struct altcp_pcb *conn); - -/* Function prototypes for application layers */ -typedef void (*altcp_set_poll_fn)(struct altcp_pcb *conn, u8_t interval); -typedef void (*altcp_recved_fn)(struct altcp_pcb *conn, u16_t len); -typedef err_t (*altcp_bind_fn)(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port); -typedef err_t (*altcp_connect_fn)(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port, altcp_connected_fn connected); - -typedef struct altcp_pcb *(*altcp_listen_fn)(struct altcp_pcb *conn, u8_t backlog, err_t *err); - -typedef void (*altcp_abort_fn)(struct altcp_pcb *conn); -typedef err_t (*altcp_close_fn)(struct altcp_pcb *conn); -typedef err_t (*altcp_shutdown_fn)(struct altcp_pcb *conn, int shut_rx, int shut_tx); - -typedef err_t (*altcp_write_fn)(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags); -typedef err_t (*altcp_output_fn)(struct altcp_pcb *conn); - -typedef u16_t (*altcp_mss_fn)(struct altcp_pcb *conn); -typedef u16_t (*altcp_sndbuf_fn)(struct altcp_pcb *conn); -typedef u16_t (*altcp_sndqueuelen_fn)(struct altcp_pcb *conn); -typedef void (*altcp_nagle_disable_fn)(struct altcp_pcb *conn); -typedef void (*altcp_nagle_enable_fn)(struct altcp_pcb *conn); -typedef int (*altcp_nagle_disabled_fn)(struct altcp_pcb *conn); - -typedef void (*altcp_setprio_fn)(struct altcp_pcb *conn, u8_t prio); - -typedef void (*altcp_dealloc_fn)(struct altcp_pcb *conn); - -typedef err_t (*altcp_get_tcp_addrinfo_fn)(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port); -typedef ip_addr_t *(*altcp_get_ip_fn)(struct altcp_pcb *conn, int local); -typedef u16_t (*altcp_get_port_fn)(struct altcp_pcb *conn, int local); - -#ifdef LWIP_DEBUG -typedef enum tcp_state (*altcp_dbg_get_tcp_state_fn)(struct altcp_pcb *conn); -#endif - -struct altcp_functions { - altcp_set_poll_fn set_poll; - altcp_recved_fn recved; - altcp_bind_fn bind; - altcp_connect_fn connect; - altcp_listen_fn listen; - altcp_abort_fn abort; - altcp_close_fn close; - altcp_shutdown_fn shutdown; - altcp_write_fn write; - altcp_output_fn output; - altcp_mss_fn mss; - altcp_sndbuf_fn sndbuf; - altcp_sndqueuelen_fn sndqueuelen; - altcp_nagle_disable_fn nagle_disable; - altcp_nagle_enable_fn nagle_enable; - altcp_nagle_disabled_fn nagle_disabled; - altcp_setprio_fn setprio; - altcp_dealloc_fn dealloc; - altcp_get_tcp_addrinfo_fn addrinfo; - altcp_get_ip_fn getip; - altcp_get_port_fn getport; -#ifdef LWIP_DEBUG - altcp_dbg_get_tcp_state_fn dbg_get_tcp_state; -#endif -}; - -void altcp_default_set_poll(struct altcp_pcb *conn, u8_t interval); -void altcp_default_recved(struct altcp_pcb *conn, u16_t len); -err_t altcp_default_bind(struct altcp_pcb *conn, const ip_addr_t *ipaddr, u16_t port); -err_t altcp_default_shutdown(struct altcp_pcb *conn, int shut_rx, int shut_tx); -err_t altcp_default_write(struct altcp_pcb *conn, const void *dataptr, u16_t len, u8_t apiflags); -err_t altcp_default_output(struct altcp_pcb *conn); -u16_t altcp_default_mss(struct altcp_pcb *conn); -u16_t altcp_default_sndbuf(struct altcp_pcb *conn); -u16_t altcp_default_sndqueuelen(struct altcp_pcb *conn); -void altcp_default_nagle_disable(struct altcp_pcb *conn); -void altcp_default_nagle_enable(struct altcp_pcb *conn); -int altcp_default_nagle_disabled(struct altcp_pcb *conn); -void altcp_default_setprio(struct altcp_pcb *conn, u8_t prio); -void altcp_default_dealloc(struct altcp_pcb *conn); -err_t altcp_default_get_tcp_addrinfo(struct altcp_pcb *conn, int local, ip_addr_t *addr, u16_t *port); -ip_addr_t *altcp_default_get_ip(struct altcp_pcb *conn, int local); -u16_t altcp_default_get_port(struct altcp_pcb *conn, int local); -#ifdef LWIP_DEBUG -enum tcp_state altcp_default_dbg_get_tcp_state(struct altcp_pcb *conn); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_ALTCP */ - -#endif /* LWIP_HDR_ALTCP_PRIV_H */ diff --git a/core/c/include/lwip/priv/api_msg.h b/core/c/include/lwip/priv/api_msg.h deleted file mode 100755 index 64c8763..0000000 --- a/core/c/include/lwip/priv/api_msg.h +++ /dev/null @@ -1,272 +0,0 @@ -/** - * @file - * netconn API lwIP internal implementations (do not use in application code) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_API_MSG_H -#define LWIP_HDR_API_MSG_H - -#include "lwip/opt.h" - -#include "lwip/arch.h" -#include "lwip/ip_addr.h" -#include "lwip/err.h" -#include "lwip/sys.h" -#include "lwip/igmp.h" -#include "lwip/api.h" -#include "lwip/priv/tcpip_priv.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_NETCONN || LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ -/* Note: Netconn API is always available when sockets are enabled - - * sockets are implemented on top of them */ - -#if LWIP_MPU_COMPATIBLE -#if LWIP_NETCONN_SEM_PER_THREAD -#define API_MSG_M_DEF_SEM(m) *m -#else -#define API_MSG_M_DEF_SEM(m) API_MSG_M_DEF(m) -#endif -#else /* LWIP_MPU_COMPATIBLE */ -#define API_MSG_M_DEF_SEM(m) API_MSG_M_DEF(m) -#endif /* LWIP_MPU_COMPATIBLE */ - -/* For the netconn API, these values are use as a bitmask! */ -#define NETCONN_SHUT_RD 1 -#define NETCONN_SHUT_WR 2 -#define NETCONN_SHUT_RDWR (NETCONN_SHUT_RD | NETCONN_SHUT_WR) - -/* IP addresses and port numbers are expected to be in - * the same byte order as in the corresponding pcb. - */ -/** This struct includes everything that is necessary to execute a function - for a netconn in another thread context (mainly used to process netconns - in the tcpip_thread context to be thread safe). */ -struct api_msg { - /** The netconn which to process - always needed: it includes the semaphore - which is used to block the application thread until the function finished. */ - struct netconn *conn; - /** The return value of the function executed in tcpip_thread. */ - err_t err; - /** Depending on the executed function, one of these union members is used */ - union { - /** used for lwip_netconn_do_send */ - struct netbuf *b; - /** used for lwip_netconn_do_newconn */ - struct { - u8_t proto; - } n; - /** used for lwip_netconn_do_bind and lwip_netconn_do_connect */ - struct { - API_MSG_M_DEF_C(ip_addr_t, ipaddr); - u16_t port; - u8_t if_idx; - } bc; - /** used for lwip_netconn_do_getaddr */ - struct { - ip_addr_t API_MSG_M_DEF(ipaddr); - u16_t API_MSG_M_DEF(port); - u8_t local; - } ad; - /** used for lwip_netconn_do_write */ - struct { - /** current vector to write */ - const struct netvector *vector; - /** number of unwritten vectors */ - u16_t vector_cnt; - /** offset into current vector */ - size_t vector_off; - /** total length across vectors */ - size_t len; - /** offset into total length/output of bytes written when err == ERR_OK */ - size_t offset; - u8_t apiflags; -#if LWIP_SO_SNDTIMEO - u32_t time_started; -#endif /* LWIP_SO_SNDTIMEO */ - } w; - /** used for lwip_netconn_do_recv */ - struct { - size_t len; - } r; -#if LWIP_TCP - /** used for lwip_netconn_do_close (/shutdown) */ - struct { - u8_t shut; -#if LWIP_SO_SNDTIMEO || LWIP_SO_LINGER - u32_t time_started; -#else /* LWIP_SO_SNDTIMEO || LWIP_SO_LINGER */ - u8_t polls_left; -#endif /* LWIP_SO_SNDTIMEO || LWIP_SO_LINGER */ - } sd; -#endif /* LWIP_TCP */ -#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) - /** used for lwip_netconn_do_join_leave_group */ - struct { - API_MSG_M_DEF_C(ip_addr_t, multiaddr); - API_MSG_M_DEF_C(ip_addr_t, netif_addr); - u8_t if_idx; - enum netconn_igmp join_or_leave; - } jl; -#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */ -#if TCP_LISTEN_BACKLOG - struct { - u8_t backlog; - } lb; -#endif /* TCP_LISTEN_BACKLOG */ - } msg; -#if LWIP_NETCONN_SEM_PER_THREAD - sys_sem_t* op_completed_sem; -#endif /* LWIP_NETCONN_SEM_PER_THREAD */ -}; - -#if LWIP_NETCONN_SEM_PER_THREAD -#define LWIP_API_MSG_SEM(msg) ((msg)->op_completed_sem) -#else /* LWIP_NETCONN_SEM_PER_THREAD */ -#define LWIP_API_MSG_SEM(msg) (&(msg)->conn->op_completed) -#endif /* LWIP_NETCONN_SEM_PER_THREAD */ - - -#if LWIP_DNS -/** As lwip_netconn_do_gethostbyname requires more arguments but doesn't require a netconn, - it has its own struct (to avoid struct api_msg getting bigger than necessary). - lwip_netconn_do_gethostbyname must be called using tcpip_callback instead of tcpip_apimsg - (see netconn_gethostbyname). */ -struct dns_api_msg { - /** Hostname to query or dotted IP address string */ -#if LWIP_MPU_COMPATIBLE - char name[DNS_MAX_NAME_LENGTH]; -#else /* LWIP_MPU_COMPATIBLE */ - const char *name; -#endif /* LWIP_MPU_COMPATIBLE */ - /** The resolved address is stored here */ - ip_addr_t API_MSG_M_DEF(addr); -#if LWIP_IPV4 && LWIP_IPV6 - /** Type of resolve call */ - u8_t dns_addrtype; -#endif /* LWIP_IPV4 && LWIP_IPV6 */ - /** This semaphore is posted when the name is resolved, the application thread - should wait on it. */ - sys_sem_t API_MSG_M_DEF_SEM(sem); - /** Errors are given back here */ - err_t API_MSG_M_DEF(err); -}; -#endif /* LWIP_DNS */ - -#if LWIP_NETCONN_FULLDUPLEX -int lwip_netconn_is_deallocated_msg(void *msg); -#endif -int lwip_netconn_is_err_msg(void *msg, err_t *err); -void lwip_netconn_do_newconn (void *m); -void lwip_netconn_do_delconn (void *m); -void lwip_netconn_do_bind (void *m); -void lwip_netconn_do_bind_if (void *m); -void lwip_netconn_do_connect (void *m); -void lwip_netconn_do_disconnect (void *m); -void lwip_netconn_do_listen (void *m); -void lwip_netconn_do_send (void *m); -void lwip_netconn_do_recv (void *m); -#if TCP_LISTEN_BACKLOG -void lwip_netconn_do_accepted (void *m); -#endif /* TCP_LISTEN_BACKLOG */ -void lwip_netconn_do_write (void *m); -void lwip_netconn_do_getaddr (void *m); -void lwip_netconn_do_close (void *m); -void lwip_netconn_do_shutdown (void *m); -#if LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) -void lwip_netconn_do_join_leave_group(void *m); -void lwip_netconn_do_join_leave_group_netif(void *m); -#endif /* LWIP_IGMP || (LWIP_IPV6 && LWIP_IPV6_MLD) */ - -#if LWIP_DNS -void lwip_netconn_do_gethostbyname(void *arg); -#endif /* LWIP_DNS */ - -struct netconn* netconn_alloc(enum netconn_type t, netconn_callback callback); -void netconn_free(struct netconn *conn); - -#endif /* LWIP_NETCONN || LWIP_SOCKET */ - -#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */ - -/* netifapi related lwIP internal definitions */ - -#if LWIP_MPU_COMPATIBLE -#define NETIFAPI_IPADDR_DEF(type, m) type m -#else /* LWIP_MPU_COMPATIBLE */ -#define NETIFAPI_IPADDR_DEF(type, m) const type * m -#endif /* LWIP_MPU_COMPATIBLE */ - -typedef void (*netifapi_void_fn)(struct netif *netif); -typedef err_t (*netifapi_errt_fn)(struct netif *netif); - -struct netifapi_msg { - struct tcpip_api_call_data call; - struct netif *netif; - union { - struct { -#if LWIP_IPV4 - NETIFAPI_IPADDR_DEF(ip4_addr_t, ipaddr); - NETIFAPI_IPADDR_DEF(ip4_addr_t, netmask); - NETIFAPI_IPADDR_DEF(ip4_addr_t, gw); -#endif /* LWIP_IPV4 */ - void *state; - netif_init_fn init; - netif_input_fn input; - } add; - struct { - netifapi_void_fn voidfunc; - netifapi_errt_fn errtfunc; - } common; - struct { -#if LWIP_MPU_COMPATIBLE - char name[NETIF_NAMESIZE]; -#else /* LWIP_MPU_COMPATIBLE */ - char *name; -#endif /* LWIP_MPU_COMPATIBLE */ - u8_t index; - } ifs; - } msg; -}; - -#endif /* LWIP_NETIF_API */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_API_MSG_H */ diff --git a/core/c/include/lwip/priv/mem_priv.h b/core/c/include/lwip/priv/mem_priv.h deleted file mode 100755 index 5abd9b5..0000000 --- a/core/c/include/lwip/priv/mem_priv.h +++ /dev/null @@ -1,84 +0,0 @@ -/** - * @file - * lwIP internal memory implementations (do not use in application code) - */ - -/* - * Copyright (c) 2018 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ - -#ifndef LWIP_HDR_MEM_PRIV_H -#define LWIP_HDR_MEM_PRIV_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#include "lwip/mem.h" - -#if MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK -/* if MEM_OVERFLOW_CHECK or MEMP_OVERFLOW_CHECK is turned on, we reserve some - * bytes at the beginning and at the end of each element, initialize them as - * 0xcd and check them later. - * If MEM(P)_OVERFLOW_CHECK is >= 2, on every call to mem(p)_malloc or mem(p)_free, - * every single element in each pool/heap is checked! - * This is VERY SLOW but also very helpful. - * MEM_SANITY_REGION_BEFORE and MEM_SANITY_REGION_AFTER can be overridden in - * lwipopts.h to change the amount reserved for checking. */ -#ifndef MEM_SANITY_REGION_BEFORE -#define MEM_SANITY_REGION_BEFORE 16 -#endif /* MEM_SANITY_REGION_BEFORE*/ -#if MEM_SANITY_REGION_BEFORE > 0 -#define MEM_SANITY_REGION_BEFORE_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SANITY_REGION_BEFORE) -#else -#define MEM_SANITY_REGION_BEFORE_ALIGNED 0 -#endif /* MEM_SANITY_REGION_BEFORE*/ -#ifndef MEM_SANITY_REGION_AFTER -#define MEM_SANITY_REGION_AFTER 16 -#endif /* MEM_SANITY_REGION_AFTER*/ -#if MEM_SANITY_REGION_AFTER > 0 -#define MEM_SANITY_REGION_AFTER_ALIGNED LWIP_MEM_ALIGN_SIZE(MEM_SANITY_REGION_AFTER) -#else -#define MEM_SANITY_REGION_AFTER_ALIGNED 0 -#endif /* MEM_SANITY_REGION_AFTER*/ - -void mem_overflow_init_raw(void *p, size_t size); -void mem_overflow_check_raw(void *p, size_t size, const char *descr1, const char *descr2); - -#endif /* MEM_OVERFLOW_CHECK || MEMP_OVERFLOW_CHECK */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_MEMP_PRIV_H */ diff --git a/core/c/include/lwip/priv/memp_priv.h b/core/c/include/lwip/priv/memp_priv.h deleted file mode 100755 index f9930fd..0000000 --- a/core/c/include/lwip/priv/memp_priv.h +++ /dev/null @@ -1,161 +0,0 @@ -/** - * @file - * memory pools lwIP internal implementations (do not use in application code) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#ifndef LWIP_HDR_MEMP_PRIV_H -#define LWIP_HDR_MEMP_PRIV_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#include "lwip/mem.h" -#include "lwip/priv/mem_priv.h" - -#if MEMP_OVERFLOW_CHECK - - -/* MEMP_SIZE: save space for struct memp and for sanity check */ -#define MEMP_SIZE (LWIP_MEM_ALIGN_SIZE(sizeof(struct memp)) + MEM_SANITY_REGION_BEFORE_ALIGNED) -#define MEMP_ALIGN_SIZE(x) (LWIP_MEM_ALIGN_SIZE(x) + MEM_SANITY_REGION_AFTER_ALIGNED) - -#else /* MEMP_OVERFLOW_CHECK */ - -/* No sanity checks - * We don't need to preserve the struct memp while not allocated, so we - * can save a little space and set MEMP_SIZE to 0. - */ -#define MEMP_SIZE 0 -#define MEMP_ALIGN_SIZE(x) (LWIP_MEM_ALIGN_SIZE(x)) - -#endif /* MEMP_OVERFLOW_CHECK */ - -#if !MEMP_MEM_MALLOC || MEMP_OVERFLOW_CHECK -struct memp { - struct memp *next; -#if MEMP_OVERFLOW_CHECK - const char *file; - int line; -#endif /* MEMP_OVERFLOW_CHECK */ -}; -#endif /* !MEMP_MEM_MALLOC || MEMP_OVERFLOW_CHECK */ - -#if MEM_USE_POOLS && MEMP_USE_CUSTOM_POOLS -/* Use a helper type to get the start and end of the user "memory pools" for mem_malloc */ -typedef enum { - /* Get the first (via: - MEMP_POOL_HELPER_START = ((u8_t) 1*MEMP_POOL_A + 0*MEMP_POOL_B + 0*MEMP_POOL_C + 0)*/ - MEMP_POOL_HELPER_FIRST = ((u8_t) -#define LWIP_MEMPOOL(name,num,size,desc) -#define LWIP_MALLOC_MEMPOOL_START 1 -#define LWIP_MALLOC_MEMPOOL(num, size) * MEMP_POOL_##size + 0 -#define LWIP_MALLOC_MEMPOOL_END -#include "lwip/priv/memp_std.h" - ) , - /* Get the last (via: - MEMP_POOL_HELPER_END = ((u8_t) 0 + MEMP_POOL_A*0 + MEMP_POOL_B*0 + MEMP_POOL_C*1) */ - MEMP_POOL_HELPER_LAST = ((u8_t) -#define LWIP_MEMPOOL(name,num,size,desc) -#define LWIP_MALLOC_MEMPOOL_START -#define LWIP_MALLOC_MEMPOOL(num, size) 0 + MEMP_POOL_##size * -#define LWIP_MALLOC_MEMPOOL_END 1 -#include "lwip/priv/memp_std.h" - ) -} memp_pool_helper_t; - -/* The actual start and stop values are here (cast them over) - We use this helper type and these defines so we can avoid using const memp_t values */ -#define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST) -#define MEMP_POOL_LAST ((memp_t) MEMP_POOL_HELPER_LAST) -#endif /* MEM_USE_POOLS && MEMP_USE_CUSTOM_POOLS */ - -/** Memory pool descriptor */ -struct memp_desc { -#if defined(LWIP_DEBUG) || MEMP_OVERFLOW_CHECK || LWIP_STATS_DISPLAY - /** Textual description */ - const char *desc; -#endif /* LWIP_DEBUG || MEMP_OVERFLOW_CHECK || LWIP_STATS_DISPLAY */ -#if MEMP_STATS - /** Statistics */ - struct stats_mem *stats; -#endif - - /** Element size */ - u16_t size; - -#if !MEMP_MEM_MALLOC - /** Number of elements */ - u16_t num; - - /** Base address */ - u8_t *base; - - /** First free element of each pool. Elements form a linked list. */ - struct memp **tab; -#endif /* MEMP_MEM_MALLOC */ -}; - -#if defined(LWIP_DEBUG) || MEMP_OVERFLOW_CHECK || LWIP_STATS_DISPLAY -#define DECLARE_LWIP_MEMPOOL_DESC(desc) (desc), -#else -#define DECLARE_LWIP_MEMPOOL_DESC(desc) -#endif - -#if MEMP_STATS -#define LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(name) static struct stats_mem name; -#define LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(name) &name, -#else -#define LWIP_MEMPOOL_DECLARE_STATS_INSTANCE(name) -#define LWIP_MEMPOOL_DECLARE_STATS_REFERENCE(name) -#endif - -void memp_init_pool(const struct memp_desc *desc); - -#if MEMP_OVERFLOW_CHECK -void *memp_malloc_pool_fn(const struct memp_desc* desc, const char* file, const int line); -#define memp_malloc_pool(d) memp_malloc_pool_fn((d), __FILE__, __LINE__) -#else -void *memp_malloc_pool(const struct memp_desc *desc); -#endif -void memp_free_pool(const struct memp_desc* desc, void *mem); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_MEMP_PRIV_H */ diff --git a/core/c/include/lwip/priv/memp_std.h b/core/c/include/lwip/priv/memp_std.h deleted file mode 100755 index 4d3b192..0000000 --- a/core/c/include/lwip/priv/memp_std.h +++ /dev/null @@ -1,153 +0,0 @@ -/** - * @file - * lwIP internal memory pools (do not use in application code) - * This file is deliberately included multiple times: once with empty - * definition of LWIP_MEMPOOL() to handle all includes and multiple times - * to build up various lists of mem pools. - */ - -/* - * SETUP: Make sure we define everything we will need. - * - * We have create three types of pools: - * 1) MEMPOOL - standard pools - * 2) MALLOC_MEMPOOL - to be used by mem_malloc in mem.c - * 3) PBUF_MEMPOOL - a mempool of pbuf's, so include space for the pbuf struct - * - * If the include'r doesn't require any special treatment of each of the types - * above, then will declare #2 & #3 to be just standard mempools. - */ -#ifndef LWIP_MALLOC_MEMPOOL -/* This treats "malloc pools" just like any other pool. - The pools are a little bigger to provide 'size' as the amount of user data. */ -#define LWIP_MALLOC_MEMPOOL(num, size) LWIP_MEMPOOL(POOL_##size, num, (size + LWIP_MEM_ALIGN_SIZE(sizeof(struct memp_malloc_helper))), "MALLOC_"#size) -#define LWIP_MALLOC_MEMPOOL_START -#define LWIP_MALLOC_MEMPOOL_END -#endif /* LWIP_MALLOC_MEMPOOL */ - -#ifndef LWIP_PBUF_MEMPOOL -/* This treats "pbuf pools" just like any other pool. - * Allocates buffers for a pbuf struct AND a payload size */ -#define LWIP_PBUF_MEMPOOL(name, num, payload, desc) LWIP_MEMPOOL(name, num, (LWIP_MEM_ALIGN_SIZE(sizeof(struct pbuf)) + LWIP_MEM_ALIGN_SIZE(payload)), desc) -#endif /* LWIP_PBUF_MEMPOOL */ - - -/* - * A list of internal pools used by LWIP. - * - * LWIP_MEMPOOL(pool_name, number_elements, element_size, pool_description) - * creates a pool name MEMP_pool_name. description is used in stats.c - */ -#if LWIP_RAW -LWIP_MEMPOOL(RAW_PCB, MEMP_NUM_RAW_PCB, sizeof(struct raw_pcb), "RAW_PCB") -#endif /* LWIP_RAW */ - -#if LWIP_UDP -LWIP_MEMPOOL(UDP_PCB, MEMP_NUM_UDP_PCB, sizeof(struct udp_pcb), "UDP_PCB") -#endif /* LWIP_UDP */ - -#if LWIP_TCP -LWIP_MEMPOOL(TCP_PCB, MEMP_NUM_TCP_PCB, sizeof(struct tcp_pcb), "TCP_PCB") -LWIP_MEMPOOL(TCP_PCB_LISTEN, MEMP_NUM_TCP_PCB_LISTEN, sizeof(struct tcp_pcb_listen), "TCP_PCB_LISTEN") -LWIP_MEMPOOL(TCP_SEG, MEMP_NUM_TCP_SEG, sizeof(struct tcp_seg), "TCP_SEG") -#endif /* LWIP_TCP */ - -#if LWIP_ALTCP && LWIP_TCP -LWIP_MEMPOOL(ALTCP_PCB, MEMP_NUM_ALTCP_PCB, sizeof(struct altcp_pcb), "ALTCP_PCB") -#endif /* LWIP_ALTCP && LWIP_TCP */ - -#if LWIP_IPV4 && IP_REASSEMBLY -LWIP_MEMPOOL(REASSDATA, MEMP_NUM_REASSDATA, sizeof(struct ip_reassdata), "REASSDATA") -#endif /* LWIP_IPV4 && IP_REASSEMBLY */ -#if (IP_FRAG && !LWIP_NETIF_TX_SINGLE_PBUF) || (LWIP_IPV6 && LWIP_IPV6_FRAG) -LWIP_MEMPOOL(FRAG_PBUF, MEMP_NUM_FRAG_PBUF, sizeof(struct pbuf_custom_ref),"FRAG_PBUF") -#endif /* IP_FRAG && !LWIP_NETIF_TX_SINGLE_PBUF || (LWIP_IPV6 && LWIP_IPV6_FRAG) */ - -#if LWIP_NETCONN || LWIP_SOCKET -LWIP_MEMPOOL(NETBUF, MEMP_NUM_NETBUF, sizeof(struct netbuf), "NETBUF") -LWIP_MEMPOOL(NETCONN, MEMP_NUM_NETCONN, sizeof(struct netconn), "NETCONN") -#endif /* LWIP_NETCONN || LWIP_SOCKET */ - -#if NO_SYS==0 -LWIP_MEMPOOL(TCPIP_MSG_API, MEMP_NUM_TCPIP_MSG_API, sizeof(struct tcpip_msg), "TCPIP_MSG_API") -#if LWIP_MPU_COMPATIBLE -LWIP_MEMPOOL(API_MSG, MEMP_NUM_API_MSG, sizeof(struct api_msg), "API_MSG") -#if LWIP_DNS -LWIP_MEMPOOL(DNS_API_MSG, MEMP_NUM_DNS_API_MSG, sizeof(struct dns_api_msg), "DNS_API_MSG") -#endif -#if LWIP_SOCKET && !LWIP_TCPIP_CORE_LOCKING -LWIP_MEMPOOL(SOCKET_SETGETSOCKOPT_DATA, MEMP_NUM_SOCKET_SETGETSOCKOPT_DATA, sizeof(struct lwip_setgetsockopt_data), "SOCKET_SETGETSOCKOPT_DATA") -#endif -#if LWIP_SOCKET && (LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL) -LWIP_MEMPOOL(SELECT_CB, MEMP_NUM_SELECT_CB, sizeof(struct lwip_select_cb), "SELECT_CB") -#endif /* LWIP_SOCKET && (LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL) */ -#if LWIP_NETIF_API -LWIP_MEMPOOL(NETIFAPI_MSG, MEMP_NUM_NETIFAPI_MSG, sizeof(struct netifapi_msg), "NETIFAPI_MSG") -#endif -#endif /* LWIP_MPU_COMPATIBLE */ -#if !LWIP_TCPIP_CORE_LOCKING_INPUT -LWIP_MEMPOOL(TCPIP_MSG_INPKT,MEMP_NUM_TCPIP_MSG_INPKT, sizeof(struct tcpip_msg), "TCPIP_MSG_INPKT") -#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */ -#endif /* NO_SYS==0 */ - -#if LWIP_IPV4 && LWIP_ARP && ARP_QUEUEING -LWIP_MEMPOOL(ARP_QUEUE, MEMP_NUM_ARP_QUEUE, sizeof(struct etharp_q_entry), "ARP_QUEUE") -#endif /* LWIP_IPV4 && LWIP_ARP && ARP_QUEUEING */ - -#if LWIP_IGMP -LWIP_MEMPOOL(IGMP_GROUP, MEMP_NUM_IGMP_GROUP, sizeof(struct igmp_group), "IGMP_GROUP") -#endif /* LWIP_IGMP */ - -#if LWIP_TIMERS && !LWIP_TIMERS_CUSTOM -LWIP_MEMPOOL(SYS_TIMEOUT, MEMP_NUM_SYS_TIMEOUT, sizeof(struct sys_timeo), "SYS_TIMEOUT") -#endif /* LWIP_TIMERS && !LWIP_TIMERS_CUSTOM */ - -#if LWIP_DNS && LWIP_SOCKET -LWIP_MEMPOOL(NETDB, MEMP_NUM_NETDB, NETDB_ELEM_SIZE, "NETDB") -#endif /* LWIP_DNS && LWIP_SOCKET */ -#if LWIP_DNS && DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC -LWIP_MEMPOOL(LOCALHOSTLIST, MEMP_NUM_LOCALHOSTLIST, LOCALHOSTLIST_ELEM_SIZE, "LOCALHOSTLIST") -#endif /* LWIP_DNS && DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC */ - -#if LWIP_IPV6 && LWIP_ND6_QUEUEING -LWIP_MEMPOOL(ND6_QUEUE, MEMP_NUM_ND6_QUEUE, sizeof(struct nd6_q_entry), "ND6_QUEUE") -#endif /* LWIP_IPV6 && LWIP_ND6_QUEUEING */ - -#if LWIP_IPV6 && LWIP_IPV6_REASS -LWIP_MEMPOOL(IP6_REASSDATA, MEMP_NUM_REASSDATA, sizeof(struct ip6_reassdata), "IP6_REASSDATA") -#endif /* LWIP_IPV6 && LWIP_IPV6_REASS */ - -#if LWIP_IPV6 && LWIP_IPV6_MLD -LWIP_MEMPOOL(MLD6_GROUP, MEMP_NUM_MLD6_GROUP, sizeof(struct mld_group), "MLD6_GROUP") -#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */ - - -/* - * A list of pools of pbuf's used by LWIP. - * - * LWIP_PBUF_MEMPOOL(pool_name, number_elements, pbuf_payload_size, pool_description) - * creates a pool name MEMP_pool_name. description is used in stats.c - * This allocates enough space for the pbuf struct and a payload. - * (Example: pbuf_payload_size=0 allocates only size for the struct) - */ -LWIP_MEMPOOL(PBUF, MEMP_NUM_PBUF, sizeof(struct pbuf), "PBUF_REF/ROM") -LWIP_PBUF_MEMPOOL(PBUF_POOL, PBUF_POOL_SIZE, PBUF_POOL_BUFSIZE, "PBUF_POOL") - - -/* - * Allow for user-defined pools; this must be explicitly set in lwipopts.h - * since the default is to NOT look for lwippools.h - */ -#if MEMP_USE_CUSTOM_POOLS -#include "lwippools.h" -#endif /* MEMP_USE_CUSTOM_POOLS */ - -/* - * REQUIRED CLEANUP: Clear up so we don't get "multiply defined" error later - * (#undef is ignored for something that is not defined) - */ -#undef LWIP_MEMPOOL -#undef LWIP_MALLOC_MEMPOOL -#undef LWIP_MALLOC_MEMPOOL_START -#undef LWIP_MALLOC_MEMPOOL_END -#undef LWIP_PBUF_MEMPOOL diff --git a/core/c/include/lwip/priv/nd6_priv.h b/core/c/include/lwip/priv/nd6_priv.h deleted file mode 100755 index 61c0b73..0000000 --- a/core/c/include/lwip/priv/nd6_priv.h +++ /dev/null @@ -1,142 +0,0 @@ -/** - * @file - * - * Neighbor discovery and stateless address autoconfiguration for IPv6. - * Aims to be compliant with RFC 4861 (Neighbor discovery) and RFC 4862 - * (Address autoconfiguration). - */ - -/* - * Copyright (c) 2010 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#ifndef LWIP_HDR_ND6_PRIV_H -#define LWIP_HDR_ND6_PRIV_H - -#include "lwip/opt.h" - -#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/pbuf.h" -#include "lwip/ip6_addr.h" -#include "lwip/netif.h" - - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_ND6_QUEUEING -/** struct for queueing outgoing packets for unknown address - * defined here to be accessed by memp.h - */ -struct nd6_q_entry { - struct nd6_q_entry *next; - struct pbuf *p; -}; -#endif /* LWIP_ND6_QUEUEING */ - -/** Struct for tables. */ -struct nd6_neighbor_cache_entry { - ip6_addr_t next_hop_address; - struct netif *netif; - u8_t lladdr[NETIF_MAX_HWADDR_LEN]; - /*u32_t pmtu;*/ -#if LWIP_ND6_QUEUEING - /** Pointer to queue of pending outgoing packets on this entry. */ - struct nd6_q_entry *q; -#else /* LWIP_ND6_QUEUEING */ - /** Pointer to a single pending outgoing packet on this entry. */ - struct pbuf *q; -#endif /* LWIP_ND6_QUEUEING */ - u8_t state; - u8_t isrouter; - union { - u32_t reachable_time; /* in seconds */ - u32_t delay_time; /* ticks (ND6_TMR_INTERVAL) */ - u32_t probes_sent; - u32_t stale_time; /* ticks (ND6_TMR_INTERVAL) */ - } counter; -}; - -struct nd6_destination_cache_entry { - ip6_addr_t destination_addr; - ip6_addr_t next_hop_addr; - u16_t pmtu; - u32_t age; -}; - -struct nd6_prefix_list_entry { - ip6_addr_t prefix; - struct netif *netif; - u32_t invalidation_timer; /* in seconds */ -}; - -struct nd6_router_list_entry { - struct nd6_neighbor_cache_entry *neighbor_entry; - u32_t invalidation_timer; /* in seconds */ - u8_t flags; -}; - -enum nd6_neighbor_cache_entry_state { - ND6_NO_ENTRY = 0, - ND6_INCOMPLETE, - ND6_REACHABLE, - ND6_STALE, - ND6_DELAY, - ND6_PROBE -}; - -#define ND6_HOPLIM 255 /* maximum hop limit, required in all ND packets */ - -#define ND6_2HRS 7200 /* two hours, expressed in number of seconds */ - -/* Router tables. */ -/* @todo make these static? and entries accessible through API? */ -extern struct nd6_neighbor_cache_entry neighbor_cache[]; -extern struct nd6_destination_cache_entry destination_cache[]; -extern struct nd6_prefix_list_entry prefix_list[]; -extern struct nd6_router_list_entry default_router_list[]; - -/* Default values, can be updated by a RA message. */ -extern u32_t reachable_time; -extern u32_t retrans_timer; - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6 */ - -#endif /* LWIP_HDR_ND6_PRIV_H */ diff --git a/core/c/include/lwip/priv/raw_priv.h b/core/c/include/lwip/priv/raw_priv.h deleted file mode 100755 index 0835422..0000000 --- a/core/c/include/lwip/priv/raw_priv.h +++ /dev/null @@ -1,69 +0,0 @@ -/** - * @file - * raw API internal implementations (do not use in application code) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_RAW_PRIV_H -#define LWIP_HDR_RAW_PRIV_H - -#include "lwip/opt.h" - -#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/raw.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** return codes for raw_input */ -typedef enum raw_input_state -{ - RAW_INPUT_NONE = 0, /* pbuf did not match any pcbs */ - RAW_INPUT_EATEN, /* pbuf handed off and delivered to pcb */ - RAW_INPUT_DELIVERED /* pbuf only delivered to pcb (pbuf can still be referenced) */ -} raw_input_state_t; - -/* The following functions are the lower layer interface to RAW. */ -raw_input_state_t raw_input(struct pbuf *p, struct netif *inp); - -void raw_netif_ip_addr_changed(const ip_addr_t* old_addr, const ip_addr_t* new_addr); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_RAW */ - -#endif /* LWIP_HDR_RAW_PRIV_H */ diff --git a/core/c/include/lwip/priv/sockets_priv.h b/core/c/include/lwip/priv/sockets_priv.h deleted file mode 100755 index e481cd1..0000000 --- a/core/c/include/lwip/priv/sockets_priv.h +++ /dev/null @@ -1,175 +0,0 @@ -/** - * @file - * Sockets API internal implementations (do not use in application code) - */ - -/* - * Copyright (c) 2017 Joel Cunningham, Garmin International, Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Joel Cunningham - * - */ -#ifndef LWIP_HDR_SOCKETS_PRIV_H -#define LWIP_HDR_SOCKETS_PRIV_H - -#include "lwip/opt.h" - -#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/err.h" -#include "lwip/sockets.h" -#include "lwip/sys.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define NUM_SOCKETS MEMP_NUM_NETCONN - -/** This is overridable for the rare case where more than 255 threads - * select on the same socket... - */ -#ifndef SELWAIT_T -#define SELWAIT_T u8_t -#endif - -union lwip_sock_lastdata { - struct netbuf *netbuf; - struct pbuf *pbuf; -}; - -/** Contains all internal pointers and states used for a socket */ -struct lwip_sock { - /** sockets currently are built on netconns, each socket has one netconn */ - struct netconn *conn; - /** data that was left from the previous read */ - union lwip_sock_lastdata lastdata; -#if LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL - /** number of times data was received, set by event_callback(), - tested by the receive and select functions */ - s16_t rcvevent; - /** number of times data was ACKed (free send buffer), set by event_callback(), - tested by select */ - u16_t sendevent; - /** error happened for this socket, set by event_callback(), tested by select */ - u16_t errevent; - /** counter of how many threads are waiting for this socket using select */ - SELWAIT_T select_waiting; -#endif /* LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL */ -#if LWIP_NETCONN_FULLDUPLEX - /* counter of how many threads are using a struct lwip_sock (not the 'int') */ - u8_t fd_used; - /* status of pending close/delete actions */ - u8_t fd_free_pending; -#define LWIP_SOCK_FD_FREE_TCP 1 -#define LWIP_SOCK_FD_FREE_FREE 2 -#endif -}; - -#ifndef set_errno -#define set_errno(err) do { if (err) { errno = (err); } } while(0) -#endif - -#if !LWIP_TCPIP_CORE_LOCKING -/** Maximum optlen used by setsockopt/getsockopt */ -#define LWIP_SETGETSOCKOPT_MAXOPTLEN LWIP_MAX(16, sizeof(struct ifreq)) - -/** This struct is used to pass data to the set/getsockopt_internal - * functions running in tcpip_thread context (only a void* is allowed) */ -struct lwip_setgetsockopt_data { - /** socket index for which to change options */ - int s; - /** level of the option to process */ - int level; - /** name of the option to process */ - int optname; - /** set: value to set the option to - * get: value of the option is stored here */ -#if LWIP_MPU_COMPATIBLE - u8_t optval[LWIP_SETGETSOCKOPT_MAXOPTLEN]; -#else - union { - void *p; - const void *pc; - } optval; -#endif - /** size of *optval */ - socklen_t optlen; - /** if an error occurs, it is temporarily stored here */ - int err; - /** semaphore to wake up the calling task */ - void* completed_sem; -}; -#endif /* !LWIP_TCPIP_CORE_LOCKING */ - -#ifdef __cplusplus -} -#endif - -struct lwip_sock* lwip_socket_dbg_get_socket(int fd); - -#if LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL - -#if LWIP_NETCONN_SEM_PER_THREAD -#define SELECT_SEM_T sys_sem_t* -#define SELECT_SEM_PTR(sem) (sem) -#else /* LWIP_NETCONN_SEM_PER_THREAD */ -#define SELECT_SEM_T sys_sem_t -#define SELECT_SEM_PTR(sem) (&(sem)) -#endif /* LWIP_NETCONN_SEM_PER_THREAD */ - -/** Description for a task waiting in select */ -struct lwip_select_cb { - /** Pointer to the next waiting task */ - struct lwip_select_cb *next; - /** Pointer to the previous waiting task */ - struct lwip_select_cb *prev; -#if LWIP_SOCKET_SELECT - /** readset passed to select */ - fd_set *readset; - /** writeset passed to select */ - fd_set *writeset; - /** unimplemented: exceptset passed to select */ - fd_set *exceptset; -#endif /* LWIP_SOCKET_SELECT */ -#if LWIP_SOCKET_POLL - /** fds passed to poll; NULL if select */ - struct pollfd *poll_fds; - /** nfds passed to poll; 0 if select */ - nfds_t poll_nfds; -#endif /* LWIP_SOCKET_POLL */ - /** don't signal the same semaphore twice: set to 1 when signalled */ - int sem_signalled; - /** semaphore to wake up a task waiting for select */ - SELECT_SEM_T sem; -}; -#endif /* LWIP_SOCKET_SELECT || LWIP_SOCKET_POLL */ - -#endif /* LWIP_SOCKET */ - -#endif /* LWIP_HDR_SOCKETS_PRIV_H */ diff --git a/core/c/include/lwip/priv/tcp_priv.h b/core/c/include/lwip/priv/tcp_priv.h deleted file mode 100755 index 96e07e3..0000000 --- a/core/c/include/lwip/priv/tcp_priv.h +++ /dev/null @@ -1,523 +0,0 @@ -/** - * @file - * TCP internal implementations (do not use in application code) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_TCP_PRIV_H -#define LWIP_HDR_TCP_PRIV_H - -#include "lwip/opt.h" - -#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/tcp.h" -#include "lwip/mem.h" -#include "lwip/pbuf.h" -#include "lwip/ip.h" -#include "lwip/icmp.h" -#include "lwip/err.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" -#include "lwip/prot/tcp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* Functions for interfacing with TCP: */ - -/* Lower layer interface to TCP: */ -void tcp_init (void); /* Initialize this module. */ -void tcp_tmr (void); /* Must be called every - TCP_TMR_INTERVAL - ms. (Typically 250 ms). */ -/* It is also possible to call these two functions at the right - intervals (instead of calling tcp_tmr()). */ -void tcp_slowtmr (void); -void tcp_fasttmr (void); - -/* Call this from a netif driver (watch out for threading issues!) that has - returned a memory error on transmit and now has free buffers to send more. - This iterates all active pcbs that had an error and tries to call - tcp_output, so use this with care as it might slow down the system. */ -void tcp_txnow (void); - -/* Only used by IP to pass a TCP segment to TCP: */ -void tcp_input (struct pbuf *p, struct netif *inp); -/* Used within the TCP code only: */ -struct tcp_pcb * tcp_alloc (u8_t prio); -void tcp_free (struct tcp_pcb *pcb); -void tcp_abandon (struct tcp_pcb *pcb, int reset); -err_t tcp_send_empty_ack(struct tcp_pcb *pcb); -err_t tcp_rexmit (struct tcp_pcb *pcb); -err_t tcp_rexmit_rto_prepare(struct tcp_pcb *pcb); -void tcp_rexmit_rto_commit(struct tcp_pcb *pcb); -void tcp_rexmit_rto (struct tcp_pcb *pcb); -void tcp_rexmit_fast (struct tcp_pcb *pcb); -u32_t tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb); -err_t tcp_process_refused_data(struct tcp_pcb *pcb); - -/** - * This is the Nagle algorithm: try to combine user data to send as few TCP - * segments as possible. Only send if - * - no previously transmitted data on the connection remains unacknowledged or - * - the TF_NODELAY flag is set (nagle algorithm turned off for this pcb) or - * - the only unsent segment is at least pcb->mss bytes long (or there is more - * than one unsent segment - with lwIP, this can happen although unsent->len < mss) - * - or if we are in fast-retransmit (TF_INFR) - */ -#define tcp_do_output_nagle(tpcb) ((((tpcb)->unacked == NULL) || \ - ((tpcb)->flags & (TF_NODELAY | TF_INFR)) || \ - (((tpcb)->unsent != NULL) && (((tpcb)->unsent->next != NULL) || \ - ((tpcb)->unsent->len >= (tpcb)->mss))) || \ - ((tcp_sndbuf(tpcb) == 0) || (tcp_sndqueuelen(tpcb) >= TCP_SND_QUEUELEN)) \ - ) ? 1 : 0) -#define tcp_output_nagle(tpcb) (tcp_do_output_nagle(tpcb) ? tcp_output(tpcb) : ERR_OK) - - -#define TCP_SEQ_LT(a,b) ((s32_t)((u32_t)(a) - (u32_t)(b)) < 0) -#define TCP_SEQ_LEQ(a,b) ((s32_t)((u32_t)(a) - (u32_t)(b)) <= 0) -#define TCP_SEQ_GT(a,b) ((s32_t)((u32_t)(a) - (u32_t)(b)) > 0) -#define TCP_SEQ_GEQ(a,b) ((s32_t)((u32_t)(a) - (u32_t)(b)) >= 0) -/* is b<=a<=c? */ -#if 0 /* see bug #10548 */ -#define TCP_SEQ_BETWEEN(a,b,c) ((c)-(b) >= (a)-(b)) -#endif -#define TCP_SEQ_BETWEEN(a,b,c) (TCP_SEQ_GEQ(a,b) && TCP_SEQ_LEQ(a,c)) - -#ifndef TCP_TMR_INTERVAL -#define TCP_TMR_INTERVAL 250 /* The TCP timer interval in milliseconds. */ -#endif /* TCP_TMR_INTERVAL */ - -#ifndef TCP_FAST_INTERVAL -#define TCP_FAST_INTERVAL TCP_TMR_INTERVAL /* the fine grained timeout in milliseconds */ -#endif /* TCP_FAST_INTERVAL */ - -#ifndef TCP_SLOW_INTERVAL -#define TCP_SLOW_INTERVAL (2*TCP_TMR_INTERVAL) /* the coarse grained timeout in milliseconds */ -#endif /* TCP_SLOW_INTERVAL */ - -#define TCP_FIN_WAIT_TIMEOUT 20000 /* milliseconds */ -#define TCP_SYN_RCVD_TIMEOUT 20000 /* milliseconds */ - -#define TCP_OOSEQ_TIMEOUT 6U /* x RTO */ - -#ifndef TCP_MSL -#define TCP_MSL 60000UL /* The maximum segment lifetime in milliseconds */ -#endif - -/* Keepalive values, compliant with RFC 1122. Don't change this unless you know what you're doing */ -#ifndef TCP_KEEPIDLE_DEFAULT -#define TCP_KEEPIDLE_DEFAULT 7200000UL /* Default KEEPALIVE timer in milliseconds */ -#endif - -#ifndef TCP_KEEPINTVL_DEFAULT -#define TCP_KEEPINTVL_DEFAULT 75000UL /* Default Time between KEEPALIVE probes in milliseconds */ -#endif - -#ifndef TCP_KEEPCNT_DEFAULT -#define TCP_KEEPCNT_DEFAULT 9U /* Default Counter for KEEPALIVE probes */ -#endif - -#define TCP_MAXIDLE TCP_KEEPCNT_DEFAULT * TCP_KEEPINTVL_DEFAULT /* Maximum KEEPALIVE probe time */ - -#define TCP_TCPLEN(seg) ((seg)->len + (((TCPH_FLAGS((seg)->tcphdr) & (TCP_FIN | TCP_SYN)) != 0) ? 1U : 0U)) - -/** Flags used on input processing, not on pcb->flags -*/ -#define TF_RESET (u8_t)0x08U /* Connection was reset. */ -#define TF_CLOSED (u8_t)0x10U /* Connection was successfully closed. */ -#define TF_GOT_FIN (u8_t)0x20U /* Connection was closed by the remote end. */ - - -#if LWIP_EVENT_API - -#define TCP_EVENT_ACCEPT(lpcb,pcb,arg,err,ret) ret = lwip_tcp_event(arg, (pcb),\ - LWIP_EVENT_ACCEPT, NULL, 0, err) -#define TCP_EVENT_SENT(pcb,space,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ - LWIP_EVENT_SENT, NULL, space, ERR_OK) -#define TCP_EVENT_RECV(pcb,p,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ - LWIP_EVENT_RECV, (p), 0, (err)) -#define TCP_EVENT_CLOSED(pcb,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ - LWIP_EVENT_RECV, NULL, 0, ERR_OK) -#define TCP_EVENT_CONNECTED(pcb,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\ - LWIP_EVENT_CONNECTED, NULL, 0, (err)) -#define TCP_EVENT_POLL(pcb,ret) do { if ((pcb)->state != SYN_RCVD) { \ - ret = lwip_tcp_event((pcb)->callback_arg, (pcb), LWIP_EVENT_POLL, NULL, 0, ERR_OK); \ - } else { \ - ret = ERR_ARG; } } while(0) -/* For event API, last state SYN_RCVD must be excluded here: the application - has not seen this pcb, yet! */ -#define TCP_EVENT_ERR(last_state,errf,arg,err) do { if (last_state != SYN_RCVD) { \ - lwip_tcp_event((arg), NULL, LWIP_EVENT_ERR, NULL, 0, (err)); } } while(0) - -#else /* LWIP_EVENT_API */ - -#define TCP_EVENT_ACCEPT(lpcb,pcb,arg,err,ret) \ - do { \ - if((lpcb)->accept != NULL) \ - (ret) = (lpcb)->accept((arg),(pcb),(err)); \ - else (ret) = ERR_ARG; \ - } while (0) - -#define TCP_EVENT_SENT(pcb,space,ret) \ - do { \ - if((pcb)->sent != NULL) \ - (ret) = (pcb)->sent((pcb)->callback_arg,(pcb),(space)); \ - else (ret) = ERR_OK; \ - } while (0) - -#define TCP_EVENT_RECV(pcb,p,err,ret) \ - do { \ - if((pcb)->recv != NULL) { \ - (ret) = (pcb)->recv((pcb)->callback_arg,(pcb),(p),(err));\ - } else { \ - (ret) = tcp_recv_null(NULL, (pcb), (p), (err)); \ - } \ - } while (0) - -#define TCP_EVENT_CLOSED(pcb,ret) \ - do { \ - if(((pcb)->recv != NULL)) { \ - (ret) = (pcb)->recv((pcb)->callback_arg,(pcb),NULL,ERR_OK);\ - } else { \ - (ret) = ERR_OK; \ - } \ - } while (0) - -#define TCP_EVENT_CONNECTED(pcb,err,ret) \ - do { \ - if((pcb)->connected != NULL) \ - (ret) = (pcb)->connected((pcb)->callback_arg,(pcb),(err)); \ - else (ret) = ERR_OK; \ - } while (0) - -#define TCP_EVENT_POLL(pcb,ret) \ - do { \ - if((pcb)->poll != NULL) \ - (ret) = (pcb)->poll((pcb)->callback_arg,(pcb)); \ - else (ret) = ERR_OK; \ - } while (0) - -#define TCP_EVENT_ERR(last_state,errf,arg,err) \ - do { \ - LWIP_UNUSED_ARG(last_state); \ - if((errf) != NULL) \ - (errf)((arg),(err)); \ - } while (0) - -#endif /* LWIP_EVENT_API */ - -/** Enabled extra-check for TCP_OVERSIZE if LWIP_DEBUG is enabled */ -#if TCP_OVERSIZE && defined(LWIP_DEBUG) -#define TCP_OVERSIZE_DBGCHECK 1 -#else -#define TCP_OVERSIZE_DBGCHECK 0 -#endif - -/** Don't generate checksum on copy if CHECKSUM_GEN_TCP is disabled */ -#define TCP_CHECKSUM_ON_COPY (LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_TCP) - -/* This structure represents a TCP segment on the unsent, unacked and ooseq queues */ -struct tcp_seg { - struct tcp_seg *next; /* used when putting segments on a queue */ - struct pbuf *p; /* buffer containing data + TCP header */ - u16_t len; /* the TCP length of this segment */ -#if TCP_OVERSIZE_DBGCHECK - u16_t oversize_left; /* Extra bytes available at the end of the last - pbuf in unsent (used for asserting vs. - tcp_pcb.unsent_oversize only) */ -#endif /* TCP_OVERSIZE_DBGCHECK */ -#if TCP_CHECKSUM_ON_COPY - u16_t chksum; - u8_t chksum_swapped; -#endif /* TCP_CHECKSUM_ON_COPY */ - u8_t flags; -#define TF_SEG_OPTS_MSS (u8_t)0x01U /* Include MSS option (only used in SYN segments) */ -#define TF_SEG_OPTS_TS (u8_t)0x02U /* Include timestamp option. */ -#define TF_SEG_DATA_CHECKSUMMED (u8_t)0x04U /* ALL data (not the header) is - checksummed into 'chksum' */ -#define TF_SEG_OPTS_WND_SCALE (u8_t)0x08U /* Include WND SCALE option (only used in SYN segments) */ -#define TF_SEG_OPTS_SACK_PERM (u8_t)0x10U /* Include SACK Permitted option (only used in SYN segments) */ - struct tcp_hdr *tcphdr; /* the TCP header */ -}; - -#define LWIP_TCP_OPT_EOL 0 -#define LWIP_TCP_OPT_NOP 1 -#define LWIP_TCP_OPT_MSS 2 -#define LWIP_TCP_OPT_WS 3 -#define LWIP_TCP_OPT_SACK_PERM 4 -#define LWIP_TCP_OPT_TS 8 - -#define LWIP_TCP_OPT_LEN_MSS 4 -#if LWIP_TCP_TIMESTAMPS -#define LWIP_TCP_OPT_LEN_TS 10 -#define LWIP_TCP_OPT_LEN_TS_OUT 12 /* aligned for output (includes NOP padding) */ -#else -#define LWIP_TCP_OPT_LEN_TS_OUT 0 -#endif -#if LWIP_WND_SCALE -#define LWIP_TCP_OPT_LEN_WS 3 -#define LWIP_TCP_OPT_LEN_WS_OUT 4 /* aligned for output (includes NOP padding) */ -#else -#define LWIP_TCP_OPT_LEN_WS_OUT 0 -#endif - -#if LWIP_TCP_SACK_OUT -#define LWIP_TCP_OPT_LEN_SACK_PERM 2 -#define LWIP_TCP_OPT_LEN_SACK_PERM_OUT 4 /* aligned for output (includes NOP padding) */ -#else -#define LWIP_TCP_OPT_LEN_SACK_PERM_OUT 0 -#endif - -#define LWIP_TCP_OPT_LENGTH(flags) \ - ((flags) & TF_SEG_OPTS_MSS ? LWIP_TCP_OPT_LEN_MSS : 0) + \ - ((flags) & TF_SEG_OPTS_TS ? LWIP_TCP_OPT_LEN_TS_OUT : 0) + \ - ((flags) & TF_SEG_OPTS_WND_SCALE ? LWIP_TCP_OPT_LEN_WS_OUT : 0) + \ - ((flags) & TF_SEG_OPTS_SACK_PERM ? LWIP_TCP_OPT_LEN_SACK_PERM_OUT : 0) - -/** This returns a TCP header option for MSS in an u32_t */ -#define TCP_BUILD_MSS_OPTION(mss) lwip_htonl(0x02040000 | ((mss) & 0xFFFF)) - -#if LWIP_WND_SCALE -#define TCPWNDSIZE_F U32_F -#define TCPWND_MAX 0xFFFFFFFFU -#define TCPWND_CHECK16(x) LWIP_ASSERT("window size > 0xFFFF", (x) <= 0xFFFF) -#define TCPWND_MIN16(x) ((u16_t)LWIP_MIN((x), 0xFFFF)) -#else /* LWIP_WND_SCALE */ -#define TCPWNDSIZE_F U16_F -#define TCPWND_MAX 0xFFFFU -#define TCPWND_CHECK16(x) -#define TCPWND_MIN16(x) x -#endif /* LWIP_WND_SCALE */ - -/* Global variables: */ -extern struct tcp_pcb *tcp_input_pcb; -extern u32_t tcp_ticks; -extern u8_t tcp_active_pcbs_changed; - -/* The TCP PCB lists. */ -union tcp_listen_pcbs_t { /* List of all TCP PCBs in LISTEN state. */ - struct tcp_pcb_listen *listen_pcbs; - struct tcp_pcb *pcbs; -}; -extern struct tcp_pcb *tcp_bound_pcbs; -extern union tcp_listen_pcbs_t tcp_listen_pcbs; -extern struct tcp_pcb *tcp_active_pcbs; /* List of all TCP PCBs that are in a - state in which they accept or send - data. */ -extern struct tcp_pcb *tcp_tw_pcbs; /* List of all TCP PCBs in TIME-WAIT. */ - -#define NUM_TCP_PCB_LISTS_NO_TIME_WAIT 3 -#define NUM_TCP_PCB_LISTS 4 -extern struct tcp_pcb ** const tcp_pcb_lists[NUM_TCP_PCB_LISTS]; - -/* Axioms about the above lists: - 1) Every TCP PCB that is not CLOSED is in one of the lists. - 2) A PCB is only in one of the lists. - 3) All PCBs in the tcp_listen_pcbs list is in LISTEN state. - 4) All PCBs in the tcp_tw_pcbs list is in TIME-WAIT state. -*/ -/* Define two macros, TCP_REG and TCP_RMV that registers a TCP PCB - with a PCB list or removes a PCB from a list, respectively. */ -#ifndef TCP_DEBUG_PCB_LISTS -#define TCP_DEBUG_PCB_LISTS 0 -#endif -#if TCP_DEBUG_PCB_LISTS -#define TCP_REG(pcbs, npcb) do {\ - struct tcp_pcb *tcp_tmp_pcb; \ - LWIP_DEBUGF(TCP_DEBUG, ("TCP_REG %p local port %"U16_F"\n", (void *)(npcb), (npcb)->local_port)); \ - for (tcp_tmp_pcb = *(pcbs); \ - tcp_tmp_pcb != NULL; \ - tcp_tmp_pcb = tcp_tmp_pcb->next) { \ - LWIP_ASSERT("TCP_REG: already registered\n", tcp_tmp_pcb != (npcb)); \ - } \ - LWIP_ASSERT("TCP_REG: pcb->state != CLOSED", ((pcbs) == &tcp_bound_pcbs) || ((npcb)->state != CLOSED)); \ - (npcb)->next = *(pcbs); \ - LWIP_ASSERT("TCP_REG: npcb->next != npcb", (npcb)->next != (npcb)); \ - *(pcbs) = (npcb); \ - LWIP_ASSERT("TCP_REG: tcp_pcbs sane", tcp_pcbs_sane()); \ - tcp_timer_needed(); \ - } while(0) -#define TCP_RMV(pcbs, npcb) do { \ - struct tcp_pcb *tcp_tmp_pcb; \ - LWIP_ASSERT("TCP_RMV: pcbs != NULL", *(pcbs) != NULL); \ - LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removing %p from %p\n", (void *)(npcb), (void *)(*(pcbs)))); \ - if(*(pcbs) == (npcb)) { \ - *(pcbs) = (*pcbs)->next; \ - } else for (tcp_tmp_pcb = *(pcbs); tcp_tmp_pcb != NULL; tcp_tmp_pcb = tcp_tmp_pcb->next) { \ - if(tcp_tmp_pcb->next == (npcb)) { \ - tcp_tmp_pcb->next = (npcb)->next; \ - break; \ - } \ - } \ - (npcb)->next = NULL; \ - LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \ - LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removed %p from %p\n", (void *)(npcb), (void *)(*(pcbs)))); \ - } while(0) - -#else /* LWIP_DEBUG */ - -#define TCP_REG(pcbs, npcb) \ - do { \ - (npcb)->next = *pcbs; \ - *(pcbs) = (npcb); \ - tcp_timer_needed(); \ - } while (0) - -#define TCP_RMV(pcbs, npcb) \ - do { \ - if(*(pcbs) == (npcb)) { \ - (*(pcbs)) = (*pcbs)->next; \ - } \ - else { \ - struct tcp_pcb *tcp_tmp_pcb; \ - for (tcp_tmp_pcb = *pcbs; \ - tcp_tmp_pcb != NULL; \ - tcp_tmp_pcb = tcp_tmp_pcb->next) { \ - if(tcp_tmp_pcb->next == (npcb)) { \ - tcp_tmp_pcb->next = (npcb)->next; \ - break; \ - } \ - } \ - } \ - (npcb)->next = NULL; \ - } while(0) - -#endif /* LWIP_DEBUG */ - -#define TCP_REG_ACTIVE(npcb) \ - do { \ - TCP_REG(&tcp_active_pcbs, npcb); \ - tcp_active_pcbs_changed = 1; \ - } while (0) - -#define TCP_RMV_ACTIVE(npcb) \ - do { \ - TCP_RMV(&tcp_active_pcbs, npcb); \ - tcp_active_pcbs_changed = 1; \ - } while (0) - -#define TCP_PCB_REMOVE_ACTIVE(pcb) \ - do { \ - tcp_pcb_remove(&tcp_active_pcbs, pcb); \ - tcp_active_pcbs_changed = 1; \ - } while (0) - - -/* Internal functions: */ -struct tcp_pcb *tcp_pcb_copy(struct tcp_pcb *pcb); -void tcp_pcb_purge(struct tcp_pcb *pcb); -void tcp_pcb_remove(struct tcp_pcb **pcblist, struct tcp_pcb *pcb); - -void tcp_segs_free(struct tcp_seg *seg); -void tcp_seg_free(struct tcp_seg *seg); -struct tcp_seg *tcp_seg_copy(struct tcp_seg *seg); - -#define tcp_ack(pcb) \ - do { \ - if((pcb)->flags & TF_ACK_DELAY) { \ - tcp_clear_flags(pcb, TF_ACK_DELAY); \ - tcp_ack_now(pcb); \ - } \ - else { \ - tcp_set_flags(pcb, TF_ACK_DELAY); \ - } \ - } while (0) - -#define tcp_ack_now(pcb) \ - tcp_set_flags(pcb, TF_ACK_NOW) - -err_t tcp_send_fin(struct tcp_pcb *pcb); -err_t tcp_enqueue_flags(struct tcp_pcb *pcb, u8_t flags); - -void tcp_rexmit_seg(struct tcp_pcb *pcb, struct tcp_seg *seg); - -void tcp_rst(const struct tcp_pcb* pcb, u32_t seqno, u32_t ackno, - const ip_addr_t *local_ip, const ip_addr_t *remote_ip, - u16_t local_port, u16_t remote_port); - -u32_t tcp_next_iss(struct tcp_pcb *pcb); - -err_t tcp_keepalive(struct tcp_pcb *pcb); -err_t tcp_split_unsent_seg(struct tcp_pcb *pcb, u16_t split); -err_t tcp_zero_window_probe(struct tcp_pcb *pcb); -void tcp_trigger_input_pcb_close(void); - -#if TCP_CALCULATE_EFF_SEND_MSS -u16_t tcp_eff_send_mss_netif(u16_t sendmss, struct netif *outif, - const ip_addr_t *dest); -#define tcp_eff_send_mss(sendmss, src, dest) \ - tcp_eff_send_mss_netif(sendmss, ip_route(src, dest), dest) -#endif /* TCP_CALCULATE_EFF_SEND_MSS */ - -#if LWIP_CALLBACK_API -err_t tcp_recv_null(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err); -#endif /* LWIP_CALLBACK_API */ - -#if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG -void tcp_debug_print(struct tcp_hdr *tcphdr); -void tcp_debug_print_flags(u8_t flags); -void tcp_debug_print_state(enum tcp_state s); -void tcp_debug_print_pcbs(void); -s16_t tcp_pcbs_sane(void); -#else -# define tcp_debug_print(tcphdr) -# define tcp_debug_print_flags(flags) -# define tcp_debug_print_state(s) -# define tcp_debug_print_pcbs() -# define tcp_pcbs_sane() 1 -#endif /* TCP_DEBUG */ - -/** External function (implemented in timers.c), called when TCP detects - * that a timer is needed (i.e. active- or time-wait-pcb found). */ -void tcp_timer_needed(void); - -void tcp_netif_ip_addr_changed(const ip_addr_t* old_addr, const ip_addr_t* new_addr); - -#if TCP_QUEUE_OOSEQ -void tcp_free_ooseq(struct tcp_pcb *pcb); -#endif - -#if LWIP_TCP_PCB_NUM_EXT_ARGS -err_t tcp_ext_arg_invoke_callbacks_passive_open(struct tcp_pcb_listen *lpcb, struct tcp_pcb *cpcb); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_TCP */ - -#endif /* LWIP_HDR_TCP_PRIV_H */ diff --git a/core/c/include/lwip/priv/tcpip_priv.h b/core/c/include/lwip/priv/tcpip_priv.h deleted file mode 100755 index 327673b..0000000 --- a/core/c/include/lwip/priv/tcpip_priv.h +++ /dev/null @@ -1,170 +0,0 @@ -/** - * @file - * TCPIP API internal implementations (do not use in application code) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_TCPIP_PRIV_H -#define LWIP_HDR_TCPIP_PRIV_H - -#include "lwip/opt.h" - -#if !NO_SYS /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/tcpip.h" -#include "lwip/sys.h" -#include "lwip/timeouts.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct pbuf; -struct netif; - -#if LWIP_MPU_COMPATIBLE -#define API_VAR_REF(name) (*(name)) -#define API_VAR_DECLARE(type, name) type * name -#define API_VAR_ALLOC_EXT(type, pool, name, errorblock) do { \ - name = (type *)memp_malloc(pool); \ - if (name == NULL) { \ - errorblock; \ - } \ - } while(0) -#define API_VAR_ALLOC(type, pool, name, errorval) API_VAR_ALLOC_EXT(type, pool, name, return errorval) -#define API_VAR_ALLOC_POOL(type, pool, name, errorval) do { \ - name = (type *)LWIP_MEMPOOL_ALLOC(pool); \ - if (name == NULL) { \ - return errorval; \ - } \ - } while(0) -#define API_VAR_FREE(pool, name) memp_free(pool, name) -#define API_VAR_FREE_POOL(pool, name) LWIP_MEMPOOL_FREE(pool, name) -#define API_EXPR_REF(expr) (&(expr)) -#if LWIP_NETCONN_SEM_PER_THREAD -#define API_EXPR_REF_SEM(expr) (expr) -#else -#define API_EXPR_REF_SEM(expr) API_EXPR_REF(expr) -#endif -#define API_EXPR_DEREF(expr) expr -#define API_MSG_M_DEF(m) m -#define API_MSG_M_DEF_C(t, m) t m -#else /* LWIP_MPU_COMPATIBLE */ -#define API_VAR_REF(name) name -#define API_VAR_DECLARE(type, name) type name -#define API_VAR_ALLOC_EXT(type, pool, name, errorblock) -#define API_VAR_ALLOC(type, pool, name, errorval) -#define API_VAR_ALLOC_POOL(type, pool, name, errorval) -#define API_VAR_FREE(pool, name) -#define API_VAR_FREE_POOL(pool, name) -#define API_EXPR_REF(expr) expr -#define API_EXPR_REF_SEM(expr) API_EXPR_REF(expr) -#define API_EXPR_DEREF(expr) (*(expr)) -#define API_MSG_M_DEF(m) *m -#define API_MSG_M_DEF_C(t, m) const t * m -#endif /* LWIP_MPU_COMPATIBLE */ - -err_t tcpip_send_msg_wait_sem(tcpip_callback_fn fn, void *apimsg, sys_sem_t* sem); - -struct tcpip_api_call_data -{ -#if !LWIP_TCPIP_CORE_LOCKING - err_t err; -#if !LWIP_NETCONN_SEM_PER_THREAD - sys_sem_t sem; -#endif /* LWIP_NETCONN_SEM_PER_THREAD */ -#else /* !LWIP_TCPIP_CORE_LOCKING */ - u8_t dummy; /* avoid empty struct :-( */ -#endif /* !LWIP_TCPIP_CORE_LOCKING */ -}; -typedef err_t (*tcpip_api_call_fn)(struct tcpip_api_call_data* call); -err_t tcpip_api_call(tcpip_api_call_fn fn, struct tcpip_api_call_data *call); - -enum tcpip_msg_type { -#if !LWIP_TCPIP_CORE_LOCKING - TCPIP_MSG_API, - TCPIP_MSG_API_CALL, -#endif /* !LWIP_TCPIP_CORE_LOCKING */ -#if !LWIP_TCPIP_CORE_LOCKING_INPUT - TCPIP_MSG_INPKT, -#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */ -#if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS - TCPIP_MSG_TIMEOUT, - TCPIP_MSG_UNTIMEOUT, -#endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */ - TCPIP_MSG_CALLBACK, - TCPIP_MSG_CALLBACK_STATIC -}; - -struct tcpip_msg { - enum tcpip_msg_type type; - union { -#if !LWIP_TCPIP_CORE_LOCKING - struct { - tcpip_callback_fn function; - void* msg; - } api_msg; - struct { - tcpip_api_call_fn function; - struct tcpip_api_call_data *arg; - sys_sem_t *sem; - } api_call; -#endif /* LWIP_TCPIP_CORE_LOCKING */ -#if !LWIP_TCPIP_CORE_LOCKING_INPUT - struct { - struct pbuf *p; - struct netif *netif; - netif_input_fn input_fn; - } inp; -#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */ - struct { - tcpip_callback_fn function; - void *ctx; - } cb; -#if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS - struct { - u32_t msecs; - sys_timeout_handler h; - void *arg; - } tmo; -#endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */ - } msg; -}; - -#ifdef __cplusplus -} -#endif - -#endif /* !NO_SYS */ - -#endif /* LWIP_HDR_TCPIP_PRIV_H */ diff --git a/core/c/include/lwip/prot/autoip.h b/core/c/include/lwip/prot/autoip.h deleted file mode 100755 index 3fe1532..0000000 --- a/core/c/include/lwip/prot/autoip.h +++ /dev/null @@ -1,78 +0,0 @@ -/** - * @file - * AutoIP protocol definitions - */ - -/* - * - * Copyright (c) 2007 Dominik Spies - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * Author: Dominik Spies - * - * This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform - * with RFC 3927. - * - */ - -#ifndef LWIP_HDR_PROT_AUTOIP_H -#define LWIP_HDR_PROT_AUTOIP_H - -#ifdef __cplusplus -extern "C" { -#endif - -/* 169.254.0.0 */ -#define AUTOIP_NET 0xA9FE0000 -/* 169.254.1.0 */ -#define AUTOIP_RANGE_START (AUTOIP_NET | 0x0100) -/* 169.254.254.255 */ -#define AUTOIP_RANGE_END (AUTOIP_NET | 0xFEFF) - -/* RFC 3927 Constants */ -#define PROBE_WAIT 1 /* second (initial random delay) */ -#define PROBE_MIN 1 /* second (minimum delay till repeated probe) */ -#define PROBE_MAX 2 /* seconds (maximum delay till repeated probe) */ -#define PROBE_NUM 3 /* (number of probe packets) */ -#define ANNOUNCE_NUM 2 /* (number of announcement packets) */ -#define ANNOUNCE_INTERVAL 2 /* seconds (time between announcement packets) */ -#define ANNOUNCE_WAIT 2 /* seconds (delay before announcing) */ -#define MAX_CONFLICTS 10 /* (max conflicts before rate limiting) */ -#define RATE_LIMIT_INTERVAL 60 /* seconds (delay between successive attempts) */ -#define DEFEND_INTERVAL 10 /* seconds (min. wait between defensive ARPs) */ - -/* AutoIP client states */ -typedef enum { - AUTOIP_STATE_OFF = 0, - AUTOIP_STATE_PROBING = 1, - AUTOIP_STATE_ANNOUNCING = 2, - AUTOIP_STATE_BOUND = 3 -} autoip_state_enum_t; - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_AUTOIP_H */ diff --git a/core/c/include/lwip/prot/dhcp.h b/core/c/include/lwip/prot/dhcp.h deleted file mode 100755 index 6d16ce3..0000000 --- a/core/c/include/lwip/prot/dhcp.h +++ /dev/null @@ -1,178 +0,0 @@ -/** - * @file - * DHCP protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Leon Woestenberg - * Copyright (c) 2001-2004 Axon Digital Design B.V., The Netherlands. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Leon Woestenberg - * - */ -#ifndef LWIP_HDR_PROT_DHCP_H -#define LWIP_HDR_PROT_DHCP_H - -#include "lwip/opt.h" -#include "lwip/arch.h" -#include "lwip/prot/ip4.h" - -#ifdef __cplusplus -extern "C" { -#endif - - /* DHCP message item offsets and length */ -#define DHCP_CHADDR_LEN 16U -#define DHCP_SNAME_OFS 44U -#define DHCP_SNAME_LEN 64U -#define DHCP_FILE_OFS 108U -#define DHCP_FILE_LEN 128U -#define DHCP_MSG_LEN 236U -#define DHCP_OPTIONS_OFS (DHCP_MSG_LEN + 4U) /* 4 byte: cookie */ - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -/** minimum set of fields of any DHCP message */ -struct dhcp_msg -{ - PACK_STRUCT_FLD_8(u8_t op); - PACK_STRUCT_FLD_8(u8_t htype); - PACK_STRUCT_FLD_8(u8_t hlen); - PACK_STRUCT_FLD_8(u8_t hops); - PACK_STRUCT_FIELD(u32_t xid); - PACK_STRUCT_FIELD(u16_t secs); - PACK_STRUCT_FIELD(u16_t flags); - PACK_STRUCT_FLD_S(ip4_addr_p_t ciaddr); - PACK_STRUCT_FLD_S(ip4_addr_p_t yiaddr); - PACK_STRUCT_FLD_S(ip4_addr_p_t siaddr); - PACK_STRUCT_FLD_S(ip4_addr_p_t giaddr); - PACK_STRUCT_FLD_8(u8_t chaddr[DHCP_CHADDR_LEN]); - PACK_STRUCT_FLD_8(u8_t sname[DHCP_SNAME_LEN]); - PACK_STRUCT_FLD_8(u8_t file[DHCP_FILE_LEN]); - PACK_STRUCT_FIELD(u32_t cookie); -#define DHCP_MIN_OPTIONS_LEN 68U -/** make sure user does not configure this too small */ -#if ((defined(DHCP_OPTIONS_LEN)) && (DHCP_OPTIONS_LEN < DHCP_MIN_OPTIONS_LEN)) -# undef DHCP_OPTIONS_LEN -#endif -/** allow this to be configured in lwipopts.h, but not too small */ -#if (!defined(DHCP_OPTIONS_LEN)) -/** set this to be sufficient for your options in outgoing DHCP msgs */ -# define DHCP_OPTIONS_LEN DHCP_MIN_OPTIONS_LEN -#endif - PACK_STRUCT_FLD_8(u8_t options[DHCP_OPTIONS_LEN]); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - - -/* DHCP client states */ -typedef enum { - DHCP_STATE_OFF = 0, - DHCP_STATE_REQUESTING = 1, - DHCP_STATE_INIT = 2, - DHCP_STATE_REBOOTING = 3, - DHCP_STATE_REBINDING = 4, - DHCP_STATE_RENEWING = 5, - DHCP_STATE_SELECTING = 6, - DHCP_STATE_INFORMING = 7, - DHCP_STATE_CHECKING = 8, - DHCP_STATE_PERMANENT = 9, /* not yet implemented */ - DHCP_STATE_BOUND = 10, - DHCP_STATE_RELEASING = 11, /* not yet implemented */ - DHCP_STATE_BACKING_OFF = 12 -} dhcp_state_enum_t; - -/* DHCP op codes */ -#define DHCP_BOOTREQUEST 1 -#define DHCP_BOOTREPLY 2 - -/* DHCP message types */ -#define DHCP_DISCOVER 1 -#define DHCP_OFFER 2 -#define DHCP_REQUEST 3 -#define DHCP_DECLINE 4 -#define DHCP_ACK 5 -#define DHCP_NAK 6 -#define DHCP_RELEASE 7 -#define DHCP_INFORM 8 - -#define DHCP_MAGIC_COOKIE 0x63825363UL - -/* This is a list of options for BOOTP and DHCP, see RFC 2132 for descriptions */ - -/* BootP options */ -#define DHCP_OPTION_PAD 0 -#define DHCP_OPTION_SUBNET_MASK 1 /* RFC 2132 3.3 */ -#define DHCP_OPTION_ROUTER 3 -#define DHCP_OPTION_DNS_SERVER 6 -#define DHCP_OPTION_HOSTNAME 12 -#define DHCP_OPTION_IP_TTL 23 -#define DHCP_OPTION_MTU 26 -#define DHCP_OPTION_BROADCAST 28 -#define DHCP_OPTION_TCP_TTL 37 -#define DHCP_OPTION_NTP 42 -#define DHCP_OPTION_END 255 - -/* DHCP options */ -#define DHCP_OPTION_REQUESTED_IP 50 /* RFC 2132 9.1, requested IP address */ -#define DHCP_OPTION_LEASE_TIME 51 /* RFC 2132 9.2, time in seconds, in 4 bytes */ -#define DHCP_OPTION_OVERLOAD 52 /* RFC2132 9.3, use file and/or sname field for options */ - -#define DHCP_OPTION_MESSAGE_TYPE 53 /* RFC 2132 9.6, important for DHCP */ -#define DHCP_OPTION_MESSAGE_TYPE_LEN 1 - -#define DHCP_OPTION_SERVER_ID 54 /* RFC 2132 9.7, server IP address */ -#define DHCP_OPTION_PARAMETER_REQUEST_LIST 55 /* RFC 2132 9.8, requested option types */ - -#define DHCP_OPTION_MAX_MSG_SIZE 57 /* RFC 2132 9.10, message size accepted >= 576 */ -#define DHCP_OPTION_MAX_MSG_SIZE_LEN 2 - -#define DHCP_OPTION_T1 58 /* T1 renewal time */ -#define DHCP_OPTION_T2 59 /* T2 rebinding time */ -#define DHCP_OPTION_US 60 -#define DHCP_OPTION_CLIENT_ID 61 -#define DHCP_OPTION_TFTP_SERVERNAME 66 -#define DHCP_OPTION_BOOTFILE 67 - -/* possible combinations of overloading the file and sname fields with options */ -#define DHCP_OVERLOAD_NONE 0 -#define DHCP_OVERLOAD_FILE 1 -#define DHCP_OVERLOAD_SNAME 2 -#define DHCP_OVERLOAD_SNAME_FILE 3 - - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_DHCP_H */ diff --git a/core/c/include/lwip/prot/dhcp6.h b/core/c/include/lwip/prot/dhcp6.h deleted file mode 100755 index 1be5f84..0000000 --- a/core/c/include/lwip/prot/dhcp6.h +++ /dev/null @@ -1,138 +0,0 @@ -/** - * @file - * DHCPv6 protocol definitions - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_PROT_DHCP6_H -#define LWIP_HDR_PROT_DHCP6_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define DHCP6_CLIENT_PORT 546 -#define DHCP6_SERVER_PORT 547 - - - /* DHCPv6 message item offsets and length */ -#define DHCP6_TRANSACTION_ID_LEN 3 - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -/** minimum set of fields of any DHCPv6 message */ -struct dhcp6_msg -{ - PACK_STRUCT_FLD_8(u8_t msgtype); - PACK_STRUCT_FLD_8(u8_t transaction_id[DHCP6_TRANSACTION_ID_LEN]); - /* options follow */ -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - - -/* DHCP6 client states */ -typedef enum { - DHCP6_STATE_OFF = 0, - DHCP6_STATE_STATELESS_IDLE = 1, - DHCP6_STATE_REQUESTING_CONFIG = 2 -} dhcp6_state_enum_t; - -/* DHCPv6 message types */ -#define DHCP6_SOLICIT 1 -#define DHCP6_ADVERTISE 2 -#define DHCP6_REQUEST 3 -#define DHCP6_CONFIRM 4 -#define DHCP6_RENEW 5 -#define DHCP6_REBIND 6 -#define DHCP6_REPLY 7 -#define DHCP6_RELEASE 8 -#define DHCP6_DECLINE 9 -#define DHCP6_RECONFIGURE 10 -#define DHCP6_INFOREQUEST 11 -#define DHCP6_RELAYFORW 12 -#define DHCP6_RELAYREPL 13 -/* More message types see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */ - -/** DHCPv6 status codes */ -#define DHCP6_STATUS_SUCCESS 0 /* Success. */ -#define DHCP6_STATUS_UNSPECFAIL 1 /* Failure, reason unspecified; this status code is sent by either a client or a server to indicate a failure not explicitly specified in this document. */ -#define DHCP6_STATUS_NOADDRSAVAIL 2 /* Server has no addresses available to assign to the IA(s). */ -#define DHCP6_STATUS_NOBINDING 3 /* Client record (binding) unavailable. */ -#define DHCP6_STATUS_NOTONLINK 4 /* The prefix for the address is not appropriate for the link to which the client is attached. */ -#define DHCP6_STATUS_USEMULTICAST 5 /* Sent by a server to a client to force the client to send messages to the server using the All_DHCP_Relay_Agents_and_Servers address. */ -/* More status codes see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */ - -/** DHCPv6 DUID types */ -#define DHCP6_DUID_LLT 1 /* LLT: Link-layer Address Plus Time */ -#define DHCP6_DUID_EN 2 /* EN: Enterprise number */ -#define DHCP6_DUID_LL 3 /* LL: Link-layer Address */ -#define DHCP6_DUID_UUID 4 /* UUID (RFC 6355) */ - -/* DHCPv6 options */ -#define DHCP6_OPTION_CLIENTID 1 -#define DHCP6_OPTION_SERVERID 2 -#define DHCP6_OPTION_IA_NA 3 -#define DHCP6_OPTION_IA_TA 4 -#define DHCP6_OPTION_IAADDR 5 -#define DHCP6_OPTION_ORO 6 -#define DHCP6_OPTION_PREFERENCE 7 -#define DHCP6_OPTION_ELAPSED_TIME 8 -#define DHCP6_OPTION_RELAY_MSG 9 -#define DHCP6_OPTION_AUTH 11 -#define DHCP6_OPTION_UNICAST 12 -#define DHCP6_OPTION_STATUS_CODE 13 -#define DHCP6_OPTION_RAPID_COMMIT 14 -#define DHCP6_OPTION_USER_CLASS 15 -#define DHCP6_OPTION_VENDOR_CLASS 16 -#define DHCP6_OPTION_VENDOR_OPTS 17 -#define DHCP6_OPTION_INTERFACE_ID 18 -#define DHCP6_OPTION_RECONF_MSG 19 -#define DHCP6_OPTION_RECONF_ACCEPT 20 -/* More options see https://www.iana.org/assignments/dhcpv6-parameters/dhcpv6-parameters.xhtml */ -#define DHCP6_OPTION_DNS_SERVERS 23 /* RFC 3646 */ -#define DHCP6_OPTION_DOMAIN_LIST 24 /* RFC 3646 */ -#define DHCP6_OPTION_SNTP_SERVERS 31 /* RFC 4075 */ - - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_DHCP6_H */ diff --git a/core/c/include/lwip/prot/dns.h b/core/c/include/lwip/prot/dns.h deleted file mode 100755 index 022a32c..0000000 --- a/core/c/include/lwip/prot/dns.h +++ /dev/null @@ -1,140 +0,0 @@ -/** - * @file - * DNS - host name to IP address resolver. - */ - -/* - * Port to lwIP from uIP - * by Jim Pettinato April 2007 - * - * security fixes and more by Simon Goldschmidt - * - * uIP version Copyright (c) 2002-2003, Adam Dunkels. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote - * products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS - * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE - * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, - * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef LWIP_HDR_PROT_DNS_H -#define LWIP_HDR_PROT_DNS_H - -#include "lwip/arch.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** DNS server port address */ -#ifndef DNS_SERVER_PORT -#define DNS_SERVER_PORT 53 -#endif - -/* DNS field TYPE used for "Resource Records" */ -#define DNS_RRTYPE_A 1 /* a host address */ -#define DNS_RRTYPE_NS 2 /* an authoritative name server */ -#define DNS_RRTYPE_MD 3 /* a mail destination (Obsolete - use MX) */ -#define DNS_RRTYPE_MF 4 /* a mail forwarder (Obsolete - use MX) */ -#define DNS_RRTYPE_CNAME 5 /* the canonical name for an alias */ -#define DNS_RRTYPE_SOA 6 /* marks the start of a zone of authority */ -#define DNS_RRTYPE_MB 7 /* a mailbox domain name (EXPERIMENTAL) */ -#define DNS_RRTYPE_MG 8 /* a mail group member (EXPERIMENTAL) */ -#define DNS_RRTYPE_MR 9 /* a mail rename domain name (EXPERIMENTAL) */ -#define DNS_RRTYPE_NULL 10 /* a null RR (EXPERIMENTAL) */ -#define DNS_RRTYPE_WKS 11 /* a well known service description */ -#define DNS_RRTYPE_PTR 12 /* a domain name pointer */ -#define DNS_RRTYPE_HINFO 13 /* host information */ -#define DNS_RRTYPE_MINFO 14 /* mailbox or mail list information */ -#define DNS_RRTYPE_MX 15 /* mail exchange */ -#define DNS_RRTYPE_TXT 16 /* text strings */ -#define DNS_RRTYPE_AAAA 28 /* IPv6 address */ -#define DNS_RRTYPE_SRV 33 /* service location */ -#define DNS_RRTYPE_ANY 255 /* any type */ - -/* DNS field CLASS used for "Resource Records" */ -#define DNS_RRCLASS_IN 1 /* the Internet */ -#define DNS_RRCLASS_CS 2 /* the CSNET class (Obsolete - used only for examples in some obsolete RFCs) */ -#define DNS_RRCLASS_CH 3 /* the CHAOS class */ -#define DNS_RRCLASS_HS 4 /* Hesiod [Dyer 87] */ -#define DNS_RRCLASS_ANY 255 /* any class */ -#define DNS_RRCLASS_FLUSH 0x800 /* Flush bit */ - -/* DNS protocol flags */ -#define DNS_FLAG1_RESPONSE 0x80 -#define DNS_FLAG1_OPCODE_STATUS 0x10 -#define DNS_FLAG1_OPCODE_INVERSE 0x08 -#define DNS_FLAG1_OPCODE_STANDARD 0x00 -#define DNS_FLAG1_AUTHORATIVE 0x04 -#define DNS_FLAG1_TRUNC 0x02 -#define DNS_FLAG1_RD 0x01 -#define DNS_FLAG2_RA 0x80 -#define DNS_FLAG2_ERR_MASK 0x0f -#define DNS_FLAG2_ERR_NONE 0x00 -#define DNS_FLAG2_ERR_NAME 0x03 - -#define DNS_HDR_GET_OPCODE(hdr) ((((hdr)->flags1) >> 3) & 0xF) - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -/** DNS message header */ -struct dns_hdr { - PACK_STRUCT_FIELD(u16_t id); - PACK_STRUCT_FLD_8(u8_t flags1); - PACK_STRUCT_FLD_8(u8_t flags2); - PACK_STRUCT_FIELD(u16_t numquestions); - PACK_STRUCT_FIELD(u16_t numanswers); - PACK_STRUCT_FIELD(u16_t numauthrr); - PACK_STRUCT_FIELD(u16_t numextrarr); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif -#define SIZEOF_DNS_HDR 12 - - -/* Multicast DNS definitions */ - -/** UDP port for multicast DNS queries */ -#ifndef DNS_MQUERY_PORT -#define DNS_MQUERY_PORT 5353 -#endif - -/* IPv4 group for multicast DNS queries: 224.0.0.251 */ -#ifndef DNS_MQUERY_IPV4_GROUP_INIT -#define DNS_MQUERY_IPV4_GROUP_INIT IPADDR4_INIT_BYTES(224,0,0,251) -#endif - -/* IPv6 group for multicast DNS queries: FF02::FB */ -#ifndef DNS_MQUERY_IPV6_GROUP_INIT -#define DNS_MQUERY_IPV6_GROUP_INIT IPADDR6_INIT_HOST(0xFF020000,0,0,0xFB) -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_DNS_H */ diff --git a/core/c/include/lwip/prot/etharp.h b/core/c/include/lwip/prot/etharp.h deleted file mode 100755 index 9e4b02c..0000000 --- a/core/c/include/lwip/prot/etharp.h +++ /dev/null @@ -1,114 +0,0 @@ -/** - * @file - * ARP protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_ETHARP_H -#define LWIP_HDR_PROT_ETHARP_H - -#include "lwip/arch.h" -#include "lwip/prot/ethernet.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#ifndef ETHARP_HWADDR_LEN -#define ETHARP_HWADDR_LEN ETH_HWADDR_LEN -#endif - -/** - * struct ip4_addr_wordaligned is used in the definition of the ARP packet format in - * order to support compilers that don't have structure packing. - */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip4_addr_wordaligned { - PACK_STRUCT_FIELD(u16_t addrw[2]); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** MEMCPY-like copying of IP addresses where addresses are known to be - * 16-bit-aligned if the port is correctly configured (so a port could define - * this to copying 2 u16_t's) - no NULL-pointer-checking needed. */ -#ifndef IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T -#define IPADDR_WORDALIGNED_COPY_TO_IP4_ADDR_T(dest, src) SMEMCPY(dest, src, sizeof(ip4_addr_t)) -#endif - - /** MEMCPY-like copying of IP addresses where addresses are known to be - * 16-bit-aligned if the port is correctly configured (so a port could define - * this to copying 2 u16_t's) - no NULL-pointer-checking needed. */ -#ifndef IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T -#define IPADDR_WORDALIGNED_COPY_FROM_IP4_ADDR_T(dest, src) SMEMCPY(dest, src, sizeof(ip4_addr_t)) -#endif - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -/** the ARP message, see RFC 826 ("Packet format") */ -struct etharp_hdr { - PACK_STRUCT_FIELD(u16_t hwtype); - PACK_STRUCT_FIELD(u16_t proto); - PACK_STRUCT_FLD_8(u8_t hwlen); - PACK_STRUCT_FLD_8(u8_t protolen); - PACK_STRUCT_FIELD(u16_t opcode); - PACK_STRUCT_FLD_S(struct eth_addr shwaddr); - PACK_STRUCT_FLD_S(struct ip4_addr_wordaligned sipaddr); - PACK_STRUCT_FLD_S(struct eth_addr dhwaddr); - PACK_STRUCT_FLD_S(struct ip4_addr_wordaligned dipaddr); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -#define SIZEOF_ETHARP_HDR 28 - -/* ARP message types (opcodes) */ -enum etharp_opcode { - ARP_REQUEST = 1, - ARP_REPLY = 2 -}; - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_ETHARP_H */ diff --git a/core/c/include/lwip/prot/ethernet.h b/core/c/include/lwip/prot/ethernet.h deleted file mode 100755 index fef49e2..0000000 --- a/core/c/include/lwip/prot/ethernet.h +++ /dev/null @@ -1,125 +0,0 @@ -/** - * @file - * Ethernet protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_ETHERNET_H -#define LWIP_HDR_PROT_ETHERNET_H - -#include "lwip/arch.h" -#include "lwip/prot/ieee.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#ifndef ETH_HWADDR_LEN -#ifdef ETHARP_HWADDR_LEN -#define ETH_HWADDR_LEN ETHARP_HWADDR_LEN /* compatibility mode */ -#else -#define ETH_HWADDR_LEN 6 -#endif -#endif - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -/** An Ethernet MAC address */ -struct eth_addr { - PACK_STRUCT_FLD_8(u8_t addr[ETH_HWADDR_LEN]); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** Initialize a struct eth_addr with its 6 bytes (takes care of correct braces) */ -#define ETH_ADDR(b0, b1, b2, b3, b4, b5) {{b0, b1, b2, b3, b4, b5}} - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -/** Ethernet header */ -struct eth_hdr { -#if ETH_PAD_SIZE - PACK_STRUCT_FLD_8(u8_t padding[ETH_PAD_SIZE]); -#endif - PACK_STRUCT_FLD_S(struct eth_addr dest); - PACK_STRUCT_FLD_S(struct eth_addr src); - PACK_STRUCT_FIELD(u16_t type); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -#define SIZEOF_ETH_HDR (14 + ETH_PAD_SIZE) - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -/** VLAN header inserted between ethernet header and payload - * if 'type' in ethernet header is ETHTYPE_VLAN. - * See IEEE802.Q */ -struct eth_vlan_hdr { - PACK_STRUCT_FIELD(u16_t prio_vid); - PACK_STRUCT_FIELD(u16_t tpid); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -#define SIZEOF_VLAN_HDR 4 -#define VLAN_ID(vlan_hdr) (lwip_htons((vlan_hdr)->prio_vid) & 0xFFF) - -/** The 24-bit IANA IPv4-multicast OUI is 01-00-5e: */ -#define LL_IP4_MULTICAST_ADDR_0 0x01 -#define LL_IP4_MULTICAST_ADDR_1 0x00 -#define LL_IP4_MULTICAST_ADDR_2 0x5e - -/** IPv6 multicast uses this prefix */ -#define LL_IP6_MULTICAST_ADDR_0 0x33 -#define LL_IP6_MULTICAST_ADDR_1 0x33 - -#define eth_addr_cmp(addr1, addr2) (memcmp((addr1)->addr, (addr2)->addr, ETH_HWADDR_LEN) == 0) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_ETHERNET_H */ diff --git a/core/c/include/lwip/prot/iana.h b/core/c/include/lwip/prot/iana.h deleted file mode 100755 index 859d238..0000000 --- a/core/c/include/lwip/prot/iana.h +++ /dev/null @@ -1,97 +0,0 @@ -/** - * @file - * IANA assigned numbers (RFC 1700 and successors) - * - * @defgroup iana IANA assigned numbers - * @ingroup infrastructure - */ - -/* - * Copyright (c) 2017 Dirk Ziegelmeier. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Dirk Ziegelmeier - * - */ - -#ifndef LWIP_HDR_PROT_IANA_H -#define LWIP_HDR_PROT_IANA_H - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * @ingroup iana - * Hardware types - */ -enum lwip_iana_hwtype { - /** Ethernet */ - LWIP_IANA_HWTYPE_ETHERNET = 1 -}; - -/** - * @ingroup iana - * Port numbers - * https://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.txt - */ -enum lwip_iana_port_number { - /** SMTP */ - LWIP_IANA_PORT_SMTP = 25, - /** DHCP server */ - LWIP_IANA_PORT_DHCP_SERVER = 67, - /** DHCP client */ - LWIP_IANA_PORT_DHCP_CLIENT = 68, - /** TFTP */ - LWIP_IANA_PORT_TFTP = 69, - /** HTTP */ - LWIP_IANA_PORT_HTTP = 80, - /** SNTP */ - LWIP_IANA_PORT_SNTP = 123, - /** NETBIOS */ - LWIP_IANA_PORT_NETBIOS = 137, - /** SNMP */ - LWIP_IANA_PORT_SNMP = 161, - /** SNMP traps */ - LWIP_IANA_PORT_SNMP_TRAP = 162, - /** HTTPS */ - LWIP_IANA_PORT_HTTPS = 443, - /** SMTPS */ - LWIP_IANA_PORT_SMTPS = 465, - /** MQTT */ - LWIP_IANA_PORT_MQTT = 1883, - /** MDNS */ - LWIP_IANA_PORT_MDNS = 5353, - /** Secure MQTT */ - LWIP_IANA_PORT_SECURE_MQTT = 8883 -}; - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_IANA_H */ diff --git a/core/c/include/lwip/prot/icmp.h b/core/c/include/lwip/prot/icmp.h deleted file mode 100755 index d8183fd..0000000 --- a/core/c/include/lwip/prot/icmp.h +++ /dev/null @@ -1,91 +0,0 @@ -/** - * @file - * ICMP protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_ICMP_H -#define LWIP_HDR_PROT_ICMP_H - -#include "lwip/arch.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define ICMP_ER 0 /* echo reply */ -#define ICMP_DUR 3 /* destination unreachable */ -#define ICMP_SQ 4 /* source quench */ -#define ICMP_RD 5 /* redirect */ -#define ICMP_ECHO 8 /* echo */ -#define ICMP_TE 11 /* time exceeded */ -#define ICMP_PP 12 /* parameter problem */ -#define ICMP_TS 13 /* timestamp */ -#define ICMP_TSR 14 /* timestamp reply */ -#define ICMP_IRQ 15 /* information request */ -#define ICMP_IR 16 /* information reply */ -#define ICMP_AM 17 /* address mask request */ -#define ICMP_AMR 18 /* address mask reply */ - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -/** This is the standard ICMP header only that the u32_t data - * is split to two u16_t like ICMP echo needs it. - * This header is also used for other ICMP types that do not - * use the data part. - */ -PACK_STRUCT_BEGIN -struct icmp_echo_hdr { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t code); - PACK_STRUCT_FIELD(u16_t chksum); - PACK_STRUCT_FIELD(u16_t id); - PACK_STRUCT_FIELD(u16_t seqno); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/* Compatibility defines, old versions used to combine type and code to an u16_t */ -#define ICMPH_TYPE(hdr) ((hdr)->type) -#define ICMPH_CODE(hdr) ((hdr)->code) -#define ICMPH_TYPE_SET(hdr, t) ((hdr)->type = (t)) -#define ICMPH_CODE_SET(hdr, c) ((hdr)->code = (c)) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_ICMP_H */ diff --git a/core/c/include/lwip/prot/icmp6.h b/core/c/include/lwip/prot/icmp6.h deleted file mode 100755 index b1c6d56..0000000 --- a/core/c/include/lwip/prot/icmp6.h +++ /dev/null @@ -1,170 +0,0 @@ -/** - * @file - * ICMP6 protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_ICMP6_H -#define LWIP_HDR_PROT_ICMP6_H - -#include "lwip/arch.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** ICMP type */ -enum icmp6_type { - /** Destination unreachable */ - ICMP6_TYPE_DUR = 1, - /** Packet too big */ - ICMP6_TYPE_PTB = 2, - /** Time exceeded */ - ICMP6_TYPE_TE = 3, - /** Parameter problem */ - ICMP6_TYPE_PP = 4, - /** Private experimentation */ - ICMP6_TYPE_PE1 = 100, - /** Private experimentation */ - ICMP6_TYPE_PE2 = 101, - /** Reserved for expansion of error messages */ - ICMP6_TYPE_RSV_ERR = 127, - - /** Echo request */ - ICMP6_TYPE_EREQ = 128, - /** Echo reply */ - ICMP6_TYPE_EREP = 129, - /** Multicast listener query */ - ICMP6_TYPE_MLQ = 130, - /** Multicast listener report */ - ICMP6_TYPE_MLR = 131, - /** Multicast listener done */ - ICMP6_TYPE_MLD = 132, - /** Router solicitation */ - ICMP6_TYPE_RS = 133, - /** Router advertisement */ - ICMP6_TYPE_RA = 134, - /** Neighbor solicitation */ - ICMP6_TYPE_NS = 135, - /** Neighbor advertisement */ - ICMP6_TYPE_NA = 136, - /** Redirect */ - ICMP6_TYPE_RD = 137, - /** Multicast router advertisement */ - ICMP6_TYPE_MRA = 151, - /** Multicast router solicitation */ - ICMP6_TYPE_MRS = 152, - /** Multicast router termination */ - ICMP6_TYPE_MRT = 153, - /** Private experimentation */ - ICMP6_TYPE_PE3 = 200, - /** Private experimentation */ - ICMP6_TYPE_PE4 = 201, - /** Reserved for expansion of informational messages */ - ICMP6_TYPE_RSV_INF = 255 -}; - -/** ICMP destination unreachable codes */ -enum icmp6_dur_code { - /** No route to destination */ - ICMP6_DUR_NO_ROUTE = 0, - /** Communication with destination administratively prohibited */ - ICMP6_DUR_PROHIBITED = 1, - /** Beyond scope of source address */ - ICMP6_DUR_SCOPE = 2, - /** Address unreachable */ - ICMP6_DUR_ADDRESS = 3, - /** Port unreachable */ - ICMP6_DUR_PORT = 4, - /** Source address failed ingress/egress policy */ - ICMP6_DUR_POLICY = 5, - /** Reject route to destination */ - ICMP6_DUR_REJECT_ROUTE = 6 -}; - -/** ICMP time exceeded codes */ -enum icmp6_te_code { - /** Hop limit exceeded in transit */ - ICMP6_TE_HL = 0, - /** Fragment reassembly time exceeded */ - ICMP6_TE_FRAG = 1 -}; - -/** ICMP parameter code */ -enum icmp6_pp_code { - /** Erroneous header field encountered */ - ICMP6_PP_FIELD = 0, - /** Unrecognized next header type encountered */ - ICMP6_PP_HEADER = 1, - /** Unrecognized IPv6 option encountered */ - ICMP6_PP_OPTION = 2 -}; - -/** This is the standard ICMP6 header. */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct icmp6_hdr { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t code); - PACK_STRUCT_FIELD(u16_t chksum); - PACK_STRUCT_FIELD(u32_t data); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** This is the ICMP6 header adapted for echo req/resp. */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct icmp6_echo_hdr { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t code); - PACK_STRUCT_FIELD(u16_t chksum); - PACK_STRUCT_FIELD(u16_t id); - PACK_STRUCT_FIELD(u16_t seqno); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_ICMP6_H */ diff --git a/core/c/include/lwip/prot/ieee.h b/core/c/include/lwip/prot/ieee.h deleted file mode 100755 index ef651b1..0000000 --- a/core/c/include/lwip/prot/ieee.h +++ /dev/null @@ -1,91 +0,0 @@ -/** - * @file - * IEEE assigned numbers - * - * @defgroup ieee IEEE assigned numbers - * @ingroup infrastructure - */ - -/* - * Copyright (c) 2017 Dirk Ziegelmeier. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Dirk Ziegelmeier - * - */ - -#ifndef LWIP_HDR_PROT_IEEE_H -#define LWIP_HDR_PROT_IEEE_H - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * @ingroup ieee - * A list of often ethtypes (although lwIP does not use all of them). - */ -enum lwip_ieee_eth_type { - /** Internet protocol v4 */ - ETHTYPE_IP = 0x0800U, - /** Address resolution protocol */ - ETHTYPE_ARP = 0x0806U, - /** Wake on lan */ - ETHTYPE_WOL = 0x0842U, - /** RARP */ - ETHTYPE_RARP = 0x8035U, - /** Virtual local area network */ - ETHTYPE_VLAN = 0x8100U, - /** Internet protocol v6 */ - ETHTYPE_IPV6 = 0x86DDU, - /** PPP Over Ethernet Discovery Stage */ - ETHTYPE_PPPOEDISC = 0x8863U, - /** PPP Over Ethernet Session Stage */ - ETHTYPE_PPPOE = 0x8864U, - /** Jumbo Frames */ - ETHTYPE_JUMBO = 0x8870U, - /** Process field network */ - ETHTYPE_PROFINET = 0x8892U, - /** Ethernet for control automation technology */ - ETHTYPE_ETHERCAT = 0x88A4U, - /** Link layer discovery protocol */ - ETHTYPE_LLDP = 0x88CCU, - /** Serial real-time communication system */ - ETHTYPE_SERCOS = 0x88CDU, - /** Media redundancy protocol */ - ETHTYPE_MRP = 0x88E3U, - /** Precision time protocol */ - ETHTYPE_PTP = 0x88F7U, - /** Q-in-Q, 802.1ad */ - ETHTYPE_QINQ = 0x9100U -}; - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_IEEE_H */ diff --git a/core/c/include/lwip/prot/igmp.h b/core/c/include/lwip/prot/igmp.h deleted file mode 100755 index 41e4e67..0000000 --- a/core/c/include/lwip/prot/igmp.h +++ /dev/null @@ -1,90 +0,0 @@ -/** - * @file - * IGMP protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_IGMP_H -#define LWIP_HDR_PROT_IGMP_H - -#include "lwip/arch.h" -#include "lwip/prot/ip4.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * IGMP constants - */ -#define IGMP_TTL 1 -#define IGMP_MINLEN 8 -#define ROUTER_ALERT 0x9404U -#define ROUTER_ALERTLEN 4 - -/* - * IGMP message types, including version number. - */ -#define IGMP_MEMB_QUERY 0x11 /* Membership query */ -#define IGMP_V1_MEMB_REPORT 0x12 /* Ver. 1 membership report */ -#define IGMP_V2_MEMB_REPORT 0x16 /* Ver. 2 membership report */ -#define IGMP_LEAVE_GROUP 0x17 /* Leave-group message */ - -/* Group membership states */ -#define IGMP_GROUP_NON_MEMBER 0 -#define IGMP_GROUP_DELAYING_MEMBER 1 -#define IGMP_GROUP_IDLE_MEMBER 2 - -/** - * IGMP packet format. - */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct igmp_msg { - PACK_STRUCT_FLD_8(u8_t igmp_msgtype); - PACK_STRUCT_FLD_8(u8_t igmp_maxresp); - PACK_STRUCT_FIELD(u16_t igmp_checksum); - PACK_STRUCT_FLD_S(ip4_addr_p_t igmp_group_address); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_IGMP_H */ diff --git a/core/c/include/lwip/prot/ip.h b/core/c/include/lwip/prot/ip.h deleted file mode 100755 index 3ce496c..0000000 --- a/core/c/include/lwip/prot/ip.h +++ /dev/null @@ -1,59 +0,0 @@ -/** - * @file - * IP protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_IP_H -#define LWIP_HDR_PROT_IP_H - -#include "lwip/arch.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define IP_PROTO_ICMP 1 -#define IP_PROTO_IGMP 2 -#define IP_PROTO_UDP 17 -#define IP_PROTO_UDPLITE 136 -#define IP_PROTO_TCP 6 - -/** This operates on a void* by loading the first byte */ -#define IP_HDR_GET_VERSION(ptr) ((*(u8_t*)(ptr)) >> 4) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_IP_H */ diff --git a/core/c/include/lwip/prot/ip4.h b/core/c/include/lwip/prot/ip4.h deleted file mode 100755 index 4635a7a..0000000 --- a/core/c/include/lwip/prot/ip4.h +++ /dev/null @@ -1,131 +0,0 @@ -/** - * @file - * IPv4 protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_IP4_H -#define LWIP_HDR_PROT_IP4_H - -#include "lwip/arch.h" -#include "lwip/ip4_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** This is the packed version of ip4_addr_t, - used in network headers that are itself packed */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip4_addr_packed { - PACK_STRUCT_FIELD(u32_t addr); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -typedef struct ip4_addr_packed ip4_addr_p_t; - -/* Size of the IPv4 header. Same as 'sizeof(struct ip_hdr)'. */ -#define IP_HLEN 20 -/* Maximum size of the IPv4 header with options. */ -#define IP_HLEN_MAX 60 - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -/* The IPv4 header */ -struct ip_hdr { - /* version / header length */ - PACK_STRUCT_FLD_8(u8_t _v_hl); - /* type of service */ - PACK_STRUCT_FLD_8(u8_t _tos); - /* total length */ - PACK_STRUCT_FIELD(u16_t _len); - /* identification */ - PACK_STRUCT_FIELD(u16_t _id); - /* fragment offset field */ - PACK_STRUCT_FIELD(u16_t _offset); -#define IP_RF 0x8000U /* reserved fragment flag */ -#define IP_DF 0x4000U /* don't fragment flag */ -#define IP_MF 0x2000U /* more fragments flag */ -#define IP_OFFMASK 0x1fffU /* mask for fragmenting bits */ - /* time to live */ - PACK_STRUCT_FLD_8(u8_t _ttl); - /* protocol*/ - PACK_STRUCT_FLD_8(u8_t _proto); - /* checksum */ - PACK_STRUCT_FIELD(u16_t _chksum); - /* source and destination IP addresses */ - PACK_STRUCT_FLD_S(ip4_addr_p_t src); - PACK_STRUCT_FLD_S(ip4_addr_p_t dest); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/* Macros to get struct ip_hdr fields: */ -#define IPH_V(hdr) ((hdr)->_v_hl >> 4) -#define IPH_HL(hdr) ((hdr)->_v_hl & 0x0f) -#define IPH_HL_BYTES(hdr) ((u8_t)(IPH_HL(hdr) * 4)) -#define IPH_TOS(hdr) ((hdr)->_tos) -#define IPH_LEN(hdr) ((hdr)->_len) -#define IPH_ID(hdr) ((hdr)->_id) -#define IPH_OFFSET(hdr) ((hdr)->_offset) -#define IPH_OFFSET_BYTES(hdr) ((u16_t)((lwip_ntohs(IPH_OFFSET(hdr)) & IP_OFFMASK) * 8U)) -#define IPH_TTL(hdr) ((hdr)->_ttl) -#define IPH_PROTO(hdr) ((hdr)->_proto) -#define IPH_CHKSUM(hdr) ((hdr)->_chksum) - -/* Macros to set struct ip_hdr fields: */ -#define IPH_VHL_SET(hdr, v, hl) (hdr)->_v_hl = (u8_t)((((v) << 4) | (hl))) -#define IPH_TOS_SET(hdr, tos) (hdr)->_tos = (tos) -#define IPH_LEN_SET(hdr, len) (hdr)->_len = (len) -#define IPH_ID_SET(hdr, id) (hdr)->_id = (id) -#define IPH_OFFSET_SET(hdr, off) (hdr)->_offset = (off) -#define IPH_TTL_SET(hdr, ttl) (hdr)->_ttl = (u8_t)(ttl) -#define IPH_PROTO_SET(hdr, proto) (hdr)->_proto = (u8_t)(proto) -#define IPH_CHKSUM_SET(hdr, chksum) (hdr)->_chksum = (chksum) - - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_IP4_H */ diff --git a/core/c/include/lwip/prot/ip6.h b/core/c/include/lwip/prot/ip6.h deleted file mode 100755 index 272d6ce..0000000 --- a/core/c/include/lwip/prot/ip6.h +++ /dev/null @@ -1,233 +0,0 @@ -/** - * @file - * IPv6 protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_IP6_H -#define LWIP_HDR_PROT_IP6_H - -#include "lwip/arch.h" -#include "lwip/ip6_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** This is the packed version of ip6_addr_t, - used in network headers that are itself packed */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip6_addr_packed { - PACK_STRUCT_FIELD(u32_t addr[4]); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif -typedef struct ip6_addr_packed ip6_addr_p_t; - -#define IP6_HLEN 40 - -#define IP6_NEXTH_HOPBYHOP 0 -#define IP6_NEXTH_TCP 6 -#define IP6_NEXTH_UDP 17 -#define IP6_NEXTH_ENCAPS 41 -#define IP6_NEXTH_ROUTING 43 -#define IP6_NEXTH_FRAGMENT 44 -#define IP6_NEXTH_ICMP6 58 -#define IP6_NEXTH_NONE 59 -#define IP6_NEXTH_DESTOPTS 60 -#define IP6_NEXTH_UDPLITE 136 - -/** The IPv6 header. */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip6_hdr { - /** version / traffic class / flow label */ - PACK_STRUCT_FIELD(u32_t _v_tc_fl); - /** payload length */ - PACK_STRUCT_FIELD(u16_t _plen); - /** next header */ - PACK_STRUCT_FLD_8(u8_t _nexth); - /** hop limit */ - PACK_STRUCT_FLD_8(u8_t _hoplim); - /** source and destination IP addresses */ - PACK_STRUCT_FLD_S(ip6_addr_p_t src); - PACK_STRUCT_FLD_S(ip6_addr_p_t dest); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif -#define IP6H_V(hdr) ((lwip_ntohl((hdr)->_v_tc_fl) >> 28) & 0x0f) -#define IP6H_TC(hdr) ((lwip_ntohl((hdr)->_v_tc_fl) >> 20) & 0xff) -#define IP6H_FL(hdr) (lwip_ntohl((hdr)->_v_tc_fl) & 0x000fffff) -#define IP6H_PLEN(hdr) (lwip_ntohs((hdr)->_plen)) -#define IP6H_NEXTH(hdr) ((hdr)->_nexth) -#define IP6H_NEXTH_P(hdr) ((u8_t *)(hdr) + 6) -#define IP6H_HOPLIM(hdr) ((hdr)->_hoplim) -#define IP6H_VTCFL_SET(hdr, v, tc, fl) (hdr)->_v_tc_fl = (lwip_htonl((((u32_t)(v)) << 28) | (((u32_t)(tc)) << 20) | (fl))) -#define IP6H_PLEN_SET(hdr, plen) (hdr)->_plen = lwip_htons(plen) -#define IP6H_NEXTH_SET(hdr, nexth) (hdr)->_nexth = (nexth) -#define IP6H_HOPLIM_SET(hdr, hl) (hdr)->_hoplim = (u8_t)(hl) - -/* ipv6 extended options header */ -#define IP6_PAD1_OPTION 0 -#define IP6_PADN_OPTION 1 -#define IP6_ROUTER_ALERT_OPTION 5 -#define IP6_JUMBO_OPTION 194 -#define IP6_HOME_ADDRESS_OPTION 201 -#define IP6_ROUTER_ALERT_DLEN 2 -#define IP6_ROUTER_ALERT_VALUE_MLD 0 - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip6_opt_hdr { - /* router alert option type */ - PACK_STRUCT_FLD_8(u8_t _opt_type); - /* router alert option data len */ - PACK_STRUCT_FLD_8(u8_t _opt_dlen); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif -#define IP6_OPT_HLEN 2 -#define IP6_OPT_TYPE_ACTION(hdr) ((((hdr)->_opt_type) >> 6) & 0x3) -#define IP6_OPT_TYPE_CHANGE(hdr) ((((hdr)->_opt_type) >> 5) & 0x1) -#define IP6_OPT_TYPE(hdr) ((hdr)->_opt_type) -#define IP6_OPT_DLEN(hdr) ((hdr)->_opt_dlen) - -/* Hop-by-Hop header. */ -#define IP6_HBH_HLEN 2 - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip6_hbh_hdr { - /* next header */ - PACK_STRUCT_FLD_8(u8_t _nexth); - /* header length in 8-octet units */ - PACK_STRUCT_FLD_8(u8_t _hlen); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif -#define IP6_HBH_NEXTH(hdr) ((hdr)->_nexth) - -/* Destination header. */ -#define IP6_DEST_HLEN 2 - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip6_dest_hdr { - /* next header */ - PACK_STRUCT_FLD_8(u8_t _nexth); - /* header length in 8-octet units */ - PACK_STRUCT_FLD_8(u8_t _hlen); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif -#define IP6_DEST_NEXTH(hdr) ((hdr)->_nexth) - -/* Routing header */ -#define IP6_ROUT_TYPE2 2 -#define IP6_ROUT_RPL 3 - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip6_rout_hdr { - /* next header */ - PACK_STRUCT_FLD_8(u8_t _nexth); - /* reserved */ - PACK_STRUCT_FLD_8(u8_t _hlen); - /* fragment offset */ - PACK_STRUCT_FIELD(u8_t _routing_type); - /* fragmented packet identification */ - PACK_STRUCT_FIELD(u8_t _segments_left); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif -#define IP6_ROUT_NEXTH(hdr) ((hdr)->_nexth) -#define IP6_ROUT_TYPE(hdr) ((hdr)->_routing_type) -#define IP6_ROUT_SEG_LEFT(hdr) ((hdr)->_segments_left) - -/* Fragment header. */ -#define IP6_FRAG_HLEN 8 -#define IP6_FRAG_OFFSET_MASK 0xfff8 -#define IP6_FRAG_MORE_FLAG 0x0001 - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ip6_frag_hdr { - /* next header */ - PACK_STRUCT_FLD_8(u8_t _nexth); - /* reserved */ - PACK_STRUCT_FLD_8(u8_t reserved); - /* fragment offset */ - PACK_STRUCT_FIELD(u16_t _fragment_offset); - /* fragmented packet identification */ - PACK_STRUCT_FIELD(u32_t _identification); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif -#define IP6_FRAG_NEXTH(hdr) ((hdr)->_nexth) -#define IP6_FRAG_MBIT(hdr) (lwip_ntohs((hdr)->_fragment_offset) & 0x1) -#define IP6_FRAG_ID(hdr) (lwip_ntohl((hdr)->_identification)) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_IP6_H */ diff --git a/core/c/include/lwip/prot/mld6.h b/core/c/include/lwip/prot/mld6.h deleted file mode 100755 index 27a63bf..0000000 --- a/core/c/include/lwip/prot/mld6.h +++ /dev/null @@ -1,71 +0,0 @@ -/** - * @file - * MLD6 protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_MLD6_H -#define LWIP_HDR_PROT_MLD6_H - -#include "lwip/arch.h" -#include "lwip/prot/ip6.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define MLD6_HBH_HLEN 8 -/** Multicast listener report/query/done message header. */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct mld_header { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t code); - PACK_STRUCT_FIELD(u16_t chksum); - PACK_STRUCT_FIELD(u16_t max_resp_delay); - PACK_STRUCT_FIELD(u16_t reserved); - PACK_STRUCT_FLD_S(ip6_addr_p_t multicast_address); - /* Options follow. */ -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_MLD6_H */ diff --git a/core/c/include/lwip/prot/nd6.h b/core/c/include/lwip/prot/nd6.h deleted file mode 100755 index af87e29..0000000 --- a/core/c/include/lwip/prot/nd6.h +++ /dev/null @@ -1,274 +0,0 @@ -/** - * @file - * ND6 protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_ND6_H -#define LWIP_HDR_PROT_ND6_H - -#include "lwip/arch.h" -#include "lwip/ip6_addr.h" -#include "lwip/prot/ip6.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** Neighbor solicitation message header. */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ns_header { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t code); - PACK_STRUCT_FIELD(u16_t chksum); - PACK_STRUCT_FIELD(u32_t reserved); - PACK_STRUCT_FLD_S(ip6_addr_p_t target_address); - /* Options follow. */ -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** Neighbor advertisement message header. */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct na_header { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t code); - PACK_STRUCT_FIELD(u16_t chksum); - PACK_STRUCT_FLD_8(u8_t flags); - PACK_STRUCT_FLD_8(u8_t reserved[3]); - PACK_STRUCT_FLD_S(ip6_addr_p_t target_address); - /* Options follow. */ -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif -#define ND6_FLAG_ROUTER (0x80) -#define ND6_FLAG_SOLICITED (0x40) -#define ND6_FLAG_OVERRIDE (0x20) - -/** Router solicitation message header. */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct rs_header { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t code); - PACK_STRUCT_FIELD(u16_t chksum); - PACK_STRUCT_FIELD(u32_t reserved); - /* Options follow. */ -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** Router advertisement message header. */ -#define ND6_RA_FLAG_MANAGED_ADDR_CONFIG (0x80) -#define ND6_RA_FLAG_OTHER_CONFIG (0x40) -#define ND6_RA_FLAG_HOME_AGENT (0x20) -#define ND6_RA_PREFERENCE_MASK (0x18) -#define ND6_RA_PREFERENCE_HIGH (0x08) -#define ND6_RA_PREFERENCE_MEDIUM (0x00) -#define ND6_RA_PREFERENCE_LOW (0x18) -#define ND6_RA_PREFERENCE_DISABLED (0x10) -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct ra_header { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t code); - PACK_STRUCT_FIELD(u16_t chksum); - PACK_STRUCT_FLD_8(u8_t current_hop_limit); - PACK_STRUCT_FLD_8(u8_t flags); - PACK_STRUCT_FIELD(u16_t router_lifetime); - PACK_STRUCT_FIELD(u32_t reachable_time); - PACK_STRUCT_FIELD(u32_t retrans_timer); - /* Options follow. */ -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** Redirect message header. */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct redirect_header { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t code); - PACK_STRUCT_FIELD(u16_t chksum); - PACK_STRUCT_FIELD(u32_t reserved); - PACK_STRUCT_FLD_S(ip6_addr_p_t target_address); - PACK_STRUCT_FLD_S(ip6_addr_p_t destination_address); - /* Options follow. */ -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** Link-layer address option. */ -#define ND6_OPTION_TYPE_SOURCE_LLADDR (0x01) -#define ND6_OPTION_TYPE_TARGET_LLADDR (0x02) -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct lladdr_option { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t length); - PACK_STRUCT_FLD_8(u8_t addr[NETIF_MAX_HWADDR_LEN]); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** Prefix information option. */ -#define ND6_OPTION_TYPE_PREFIX_INFO (0x03) -#define ND6_PREFIX_FLAG_ON_LINK (0x80) -#define ND6_PREFIX_FLAG_AUTONOMOUS (0x40) -#define ND6_PREFIX_FLAG_ROUTER_ADDRESS (0x20) -#define ND6_PREFIX_FLAG_SITE_PREFIX (0x10) -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct prefix_option { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t length); - PACK_STRUCT_FLD_8(u8_t prefix_length); - PACK_STRUCT_FLD_8(u8_t flags); - PACK_STRUCT_FIELD(u32_t valid_lifetime); - PACK_STRUCT_FIELD(u32_t preferred_lifetime); - PACK_STRUCT_FLD_8(u8_t reserved2[3]); - PACK_STRUCT_FLD_8(u8_t site_prefix_length); - PACK_STRUCT_FLD_S(ip6_addr_p_t prefix); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** Redirected header option. */ -#define ND6_OPTION_TYPE_REDIR_HDR (0x04) -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct redirected_header_option { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t length); - PACK_STRUCT_FLD_8(u8_t reserved[6]); - /* Portion of redirected packet follows. */ - /* PACK_STRUCT_FLD_8(u8_t redirected[8]); */ -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** MTU option. */ -#define ND6_OPTION_TYPE_MTU (0x05) -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct mtu_option { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t length); - PACK_STRUCT_FIELD(u16_t reserved); - PACK_STRUCT_FIELD(u32_t mtu); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** Route information option. */ -#define ND6_OPTION_TYPE_ROUTE_INFO (24) -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct route_option { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t length); - PACK_STRUCT_FLD_8(u8_t prefix_length); - PACK_STRUCT_FLD_8(u8_t preference); - PACK_STRUCT_FIELD(u32_t route_lifetime); - PACK_STRUCT_FLD_S(ip6_addr_p_t prefix); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/** Recursive DNS Server Option. */ -#define ND6_OPTION_TYPE_RDNSS (25) -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct rdnss_option { - PACK_STRUCT_FLD_8(u8_t type); - PACK_STRUCT_FLD_8(u8_t length); - PACK_STRUCT_FIELD(u16_t reserved); - PACK_STRUCT_FIELD(u32_t lifetime); - PACK_STRUCT_FLD_S(ip6_addr_p_t rdnss_address[1]); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -#define SIZEOF_RDNSS_OPTION_BASE 8 /* size without addresses */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_ND6_H */ diff --git a/core/c/include/lwip/prot/tcp.h b/core/c/include/lwip/prot/tcp.h deleted file mode 100755 index f5a3dc8..0000000 --- a/core/c/include/lwip/prot/tcp.h +++ /dev/null @@ -1,100 +0,0 @@ -/** - * @file - * TCP protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_TCP_H -#define LWIP_HDR_PROT_TCP_H - -#include "lwip/arch.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* Length of the TCP header, excluding options. */ -#define TCP_HLEN 20 - -/* Fields are (of course) in network byte order. - * Some fields are converted to host byte order in tcp_input(). - */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct tcp_hdr { - PACK_STRUCT_FIELD(u16_t src); - PACK_STRUCT_FIELD(u16_t dest); - PACK_STRUCT_FIELD(u32_t seqno); - PACK_STRUCT_FIELD(u32_t ackno); - PACK_STRUCT_FIELD(u16_t _hdrlen_rsvd_flags); - PACK_STRUCT_FIELD(u16_t wnd); - PACK_STRUCT_FIELD(u16_t chksum); - PACK_STRUCT_FIELD(u16_t urgp); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/* TCP header flags bits */ -#define TCP_FIN 0x01U -#define TCP_SYN 0x02U -#define TCP_RST 0x04U -#define TCP_PSH 0x08U -#define TCP_ACK 0x10U -#define TCP_URG 0x20U -#define TCP_ECE 0x40U -#define TCP_CWR 0x80U -/* Valid TCP header flags */ -#define TCP_FLAGS 0x3fU - -#define TCP_MAX_OPTION_BYTES 40 - -#define TCPH_HDRLEN(phdr) ((u16_t)(lwip_ntohs((phdr)->_hdrlen_rsvd_flags) >> 12)) -#define TCPH_HDRLEN_BYTES(phdr) ((u8_t)(TCPH_HDRLEN(phdr) << 2)) -#define TCPH_FLAGS(phdr) ((u8_t)((lwip_ntohs((phdr)->_hdrlen_rsvd_flags) & TCP_FLAGS))) - -#define TCPH_HDRLEN_SET(phdr, len) (phdr)->_hdrlen_rsvd_flags = lwip_htons(((len) << 12) | TCPH_FLAGS(phdr)) -#define TCPH_FLAGS_SET(phdr, flags) (phdr)->_hdrlen_rsvd_flags = (((phdr)->_hdrlen_rsvd_flags & PP_HTONS(~TCP_FLAGS)) | lwip_htons(flags)) -#define TCPH_HDRLEN_FLAGS_SET(phdr, len, flags) (phdr)->_hdrlen_rsvd_flags = (u16_t)(lwip_htons((u16_t)((len) << 12) | (flags))) - -#define TCPH_SET_FLAG(phdr, flags ) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags | lwip_htons(flags)) -#define TCPH_UNSET_FLAG(phdr, flags) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags & ~lwip_htons(flags)) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_TCP_H */ diff --git a/core/c/include/lwip/prot/udp.h b/core/c/include/lwip/prot/udp.h deleted file mode 100755 index 4904b7e..0000000 --- a/core/c/include/lwip/prot/udp.h +++ /dev/null @@ -1,68 +0,0 @@ -/** - * @file - * UDP protocol definitions - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_PROT_UDP_H -#define LWIP_HDR_PROT_UDP_H - -#include "lwip/arch.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define UDP_HLEN 8 - -/* Fields are (of course) in network byte order. */ -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct udp_hdr { - PACK_STRUCT_FIELD(u16_t src); - PACK_STRUCT_FIELD(u16_t dest); /* src/dest UDP ports */ - PACK_STRUCT_FIELD(u16_t len); - PACK_STRUCT_FIELD(u16_t chksum); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_PROT_UDP_H */ diff --git a/core/c/include/lwip/raw.h b/core/c/include/lwip/raw.h deleted file mode 100755 index 1be1273..0000000 --- a/core/c/include/lwip/raw.h +++ /dev/null @@ -1,143 +0,0 @@ -/** - * @file - * raw API (to be used from TCPIP thread)\n - * See also @ref raw_raw - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_RAW_H -#define LWIP_HDR_RAW_H - -#include "lwip/opt.h" - -#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/pbuf.h" -#include "lwip/def.h" -#include "lwip/ip.h" -#include "lwip/ip_addr.h" -#include "lwip/ip6_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define RAW_FLAGS_CONNECTED 0x01U -#define RAW_FLAGS_HDRINCL 0x02U -#define RAW_FLAGS_MULTICAST_LOOP 0x04U - -struct raw_pcb; - -/** Function prototype for raw pcb receive callback functions. - * @param arg user supplied argument (raw_pcb.recv_arg) - * @param pcb the raw_pcb which received data - * @param p the packet buffer that was received - * @param addr the remote IP address from which the packet was received - * @return 1 if the packet was 'eaten' (aka. deleted), - * 0 if the packet lives on - * If returning 1, the callback is responsible for freeing the pbuf - * if it's not used any more. - */ -typedef u8_t (*raw_recv_fn)(void *arg, struct raw_pcb *pcb, struct pbuf *p, - const ip_addr_t *addr); - -/** the RAW protocol control block */ -struct raw_pcb { - /* Common members of all PCB types */ - IP_PCB; - - struct raw_pcb *next; - - u8_t protocol; - u8_t flags; - -#if LWIP_MULTICAST_TX_OPTIONS - /** outgoing network interface for multicast packets, by interface index (if nonzero) */ - u8_t mcast_ifindex; - /** TTL for outgoing multicast packets */ - u8_t mcast_ttl; -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - - /** receive callback function */ - raw_recv_fn recv; - /* user-supplied argument for the recv callback */ - void *recv_arg; -#if LWIP_IPV6 - /* fields for handling checksum computations as per RFC3542. */ - u16_t chksum_offset; - u8_t chksum_reqd; -#endif -}; - -/* The following functions is the application layer interface to the - RAW code. */ -struct raw_pcb * raw_new (u8_t proto); -struct raw_pcb * raw_new_ip_type(u8_t type, u8_t proto); -void raw_remove (struct raw_pcb *pcb); -err_t raw_bind (struct raw_pcb *pcb, const ip_addr_t *ipaddr); -void raw_bind_netif (struct raw_pcb *pcb, const struct netif *netif); -err_t raw_connect (struct raw_pcb *pcb, const ip_addr_t *ipaddr); -void raw_disconnect (struct raw_pcb *pcb); - -err_t raw_sendto (struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *ipaddr); -err_t raw_sendto_if_src(struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, struct netif *netif, const ip_addr_t *src_ip); -err_t raw_send (struct raw_pcb *pcb, struct pbuf *p); - -void raw_recv (struct raw_pcb *pcb, raw_recv_fn recv, void *recv_arg); - -#define raw_flags(pcb) ((pcb)->flags) -#define raw_setflags(pcb,f) ((pcb)->flags = (f)) - -#define raw_set_flags(pcb, set_flags) do { (pcb)->flags = (u8_t)((pcb)->flags | (set_flags)); } while(0) -#define raw_clear_flags(pcb, clr_flags) do { (pcb)->flags = (u8_t)((pcb)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0) -#define raw_is_flag_set(pcb, flag) (((pcb)->flags & (flag)) != 0) - -#define raw_init() /* Compatibility define, no init needed. */ - -/* for compatibility with older implementation */ -#define raw_new_ip6(proto) raw_new_ip_type(IPADDR_TYPE_V6, proto) - -#if LWIP_MULTICAST_TX_OPTIONS -#define raw_set_multicast_netif_index(pcb, idx) ((pcb)->mcast_ifindex = (idx)) -#define raw_get_multicast_netif_index(pcb) ((pcb)->mcast_ifindex) -#define raw_set_multicast_ttl(pcb, value) ((pcb)->mcast_ttl = (value)) -#define raw_get_multicast_ttl(pcb) ((pcb)->mcast_ttl) -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_RAW */ - -#endif /* LWIP_HDR_RAW_H */ diff --git a/core/c/include/lwip/sio.h b/core/c/include/lwip/sio.h deleted file mode 100755 index efa8ade..0000000 --- a/core/c/include/lwip/sio.h +++ /dev/null @@ -1,142 +0,0 @@ -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - */ - -/* - * This is the interface to the platform specific serial IO module - * It needs to be implemented by those platforms which need SLIP or PPP - */ - -#ifndef SIO_H -#define SIO_H - -#include "lwip/arch.h" -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* If you want to define sio_fd_t elsewhere or differently, - define this in your cc.h file. */ -#ifndef __sio_fd_t_defined -typedef void * sio_fd_t; -#endif - -/* The following functions can be defined to something else in your cc.h file - or be implemented in your custom sio.c file. */ - -#ifndef sio_open -/** - * Opens a serial device for communication. - * - * @param devnum device number - * @return handle to serial device if successful, NULL otherwise - */ -sio_fd_t sio_open(u8_t devnum); -#endif - -#ifndef sio_send -/** - * Sends a single character to the serial device. - * - * @param c character to send - * @param fd serial device handle - * - * @note This function will block until the character can be sent. - */ -void sio_send(u8_t c, sio_fd_t fd); -#endif - -#ifndef sio_recv -/** - * Receives a single character from the serial device. - * - * @param fd serial device handle - * - * @note This function will block until a character is received. - */ -u8_t sio_recv(sio_fd_t fd); -#endif - -#ifndef sio_read -/** - * Reads from the serial device. - * - * @param fd serial device handle - * @param data pointer to data buffer for receiving - * @param len maximum length (in bytes) of data to receive - * @return number of bytes actually received - may be 0 if aborted by sio_read_abort - * - * @note This function will block until data can be received. The blocking - * can be cancelled by calling sio_read_abort(). - */ -u32_t sio_read(sio_fd_t fd, u8_t *data, u32_t len); -#endif - -#ifndef sio_tryread -/** - * Tries to read from the serial device. Same as sio_read but returns - * immediately if no data is available and never blocks. - * - * @param fd serial device handle - * @param data pointer to data buffer for receiving - * @param len maximum length (in bytes) of data to receive - * @return number of bytes actually received - */ -u32_t sio_tryread(sio_fd_t fd, u8_t *data, u32_t len); -#endif - -#ifndef sio_write -/** - * Writes to the serial device. - * - * @param fd serial device handle - * @param data pointer to data to send - * @param len length (in bytes) of data to send - * @return number of bytes actually sent - * - * @note This function will block until all data can be sent. - */ -u32_t sio_write(sio_fd_t fd, u8_t *data, u32_t len); -#endif - -#ifndef sio_read_abort -/** - * Aborts a blocking sio_read() call. - * - * @param fd serial device handle - */ -void sio_read_abort(sio_fd_t fd); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* SIO_H */ diff --git a/core/c/include/lwip/snmp.h b/core/c/include/lwip/snmp.h deleted file mode 100755 index 80e6e57..0000000 --- a/core/c/include/lwip/snmp.h +++ /dev/null @@ -1,213 +0,0 @@ -/** - * @file - * SNMP support API for implementing netifs and statitics for MIB2 - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Dirk Ziegelmeier - * - */ -#ifndef LWIP_HDR_SNMP_H -#define LWIP_HDR_SNMP_H - -#include "lwip/opt.h" -#include "lwip/ip_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct udp_pcb; -struct netif; - -/** - * @defgroup netif_mib2 MIB2 statistics - * @ingroup netif - */ - -/* MIB2 statistics functions */ -#if MIB2_STATS /* don't build if not configured for use in lwipopts.h */ -/** - * @ingroup netif_mib2 - * @see RFC1213, "MIB-II, 6. Definitions" - */ -enum snmp_ifType { - snmp_ifType_other=1, /* none of the following */ - snmp_ifType_regular1822, - snmp_ifType_hdh1822, - snmp_ifType_ddn_x25, - snmp_ifType_rfc877_x25, - snmp_ifType_ethernet_csmacd, - snmp_ifType_iso88023_csmacd, - snmp_ifType_iso88024_tokenBus, - snmp_ifType_iso88025_tokenRing, - snmp_ifType_iso88026_man, - snmp_ifType_starLan, - snmp_ifType_proteon_10Mbit, - snmp_ifType_proteon_80Mbit, - snmp_ifType_hyperchannel, - snmp_ifType_fddi, - snmp_ifType_lapb, - snmp_ifType_sdlc, - snmp_ifType_ds1, /* T-1 */ - snmp_ifType_e1, /* european equiv. of T-1 */ - snmp_ifType_basicISDN, - snmp_ifType_primaryISDN, /* proprietary serial */ - snmp_ifType_propPointToPointSerial, - snmp_ifType_ppp, - snmp_ifType_softwareLoopback, - snmp_ifType_eon, /* CLNP over IP [11] */ - snmp_ifType_ethernet_3Mbit, - snmp_ifType_nsip, /* XNS over IP */ - snmp_ifType_slip, /* generic SLIP */ - snmp_ifType_ultra, /* ULTRA technologies */ - snmp_ifType_ds3, /* T-3 */ - snmp_ifType_sip, /* SMDS */ - snmp_ifType_frame_relay -}; - -/** This macro has a precision of ~49 days because sys_now returns u32_t. \#define your own if you want ~490 days. */ -#ifndef MIB2_COPY_SYSUPTIME_TO -#define MIB2_COPY_SYSUPTIME_TO(ptrToVal) (*(ptrToVal) = (sys_now() / 10)) -#endif - -/** - * @ingroup netif_mib2 - * Increment stats member for SNMP MIB2 stats (struct stats_mib2_netif_ctrs) - */ -#define MIB2_STATS_NETIF_INC(n, x) do { ++(n)->mib2_counters.x; } while(0) -/** - * @ingroup netif_mib2 - * Add value to stats member for SNMP MIB2 stats (struct stats_mib2_netif_ctrs) - */ -#define MIB2_STATS_NETIF_ADD(n, x, val) do { (n)->mib2_counters.x += (val); } while(0) - -/** - * @ingroup netif_mib2 - * Init MIB2 statistic counters in netif - * @param netif Netif to init - * @param type one of enum @ref snmp_ifType - * @param speed your link speed here (units: bits per second) - */ -#define MIB2_INIT_NETIF(netif, type, speed) do { \ - (netif)->link_type = (type); \ - (netif)->link_speed = (speed);\ - (netif)->ts = 0; \ - (netif)->mib2_counters.ifinoctets = 0; \ - (netif)->mib2_counters.ifinucastpkts = 0; \ - (netif)->mib2_counters.ifinnucastpkts = 0; \ - (netif)->mib2_counters.ifindiscards = 0; \ - (netif)->mib2_counters.ifinerrors = 0; \ - (netif)->mib2_counters.ifinunknownprotos = 0; \ - (netif)->mib2_counters.ifoutoctets = 0; \ - (netif)->mib2_counters.ifoutucastpkts = 0; \ - (netif)->mib2_counters.ifoutnucastpkts = 0; \ - (netif)->mib2_counters.ifoutdiscards = 0; \ - (netif)->mib2_counters.ifouterrors = 0; } while(0) -#else /* MIB2_STATS */ -#ifndef MIB2_COPY_SYSUPTIME_TO -#define MIB2_COPY_SYSUPTIME_TO(ptrToVal) -#endif -#define MIB2_INIT_NETIF(netif, type, speed) -#define MIB2_STATS_NETIF_INC(n, x) -#define MIB2_STATS_NETIF_ADD(n, x, val) -#endif /* MIB2_STATS */ - -/* LWIP MIB2 callbacks */ -#if LWIP_MIB2_CALLBACKS /* don't build if not configured for use in lwipopts.h */ -/* network interface */ -void mib2_netif_added(struct netif *ni); -void mib2_netif_removed(struct netif *ni); - -#if LWIP_IPV4 && LWIP_ARP -/* ARP (for atTable and ipNetToMediaTable) */ -void mib2_add_arp_entry(struct netif *ni, ip4_addr_t *ip); -void mib2_remove_arp_entry(struct netif *ni, ip4_addr_t *ip); -#else /* LWIP_IPV4 && LWIP_ARP */ -#define mib2_add_arp_entry(ni,ip) -#define mib2_remove_arp_entry(ni,ip) -#endif /* LWIP_IPV4 && LWIP_ARP */ - -/* IP */ -#if LWIP_IPV4 -void mib2_add_ip4(struct netif *ni); -void mib2_remove_ip4(struct netif *ni); -void mib2_add_route_ip4(u8_t dflt, struct netif *ni); -void mib2_remove_route_ip4(u8_t dflt, struct netif *ni); -#endif /* LWIP_IPV4 */ - -/* UDP */ -#if LWIP_UDP -void mib2_udp_bind(struct udp_pcb *pcb); -void mib2_udp_unbind(struct udp_pcb *pcb); -#endif /* LWIP_UDP */ - -#else /* LWIP_MIB2_CALLBACKS */ -/* LWIP_MIB2_CALLBACKS support not available */ -/* define everything to be empty */ - -/* network interface */ -#define mib2_netif_added(ni) -#define mib2_netif_removed(ni) - -/* ARP */ -#define mib2_add_arp_entry(ni,ip) -#define mib2_remove_arp_entry(ni,ip) - -/* IP */ -#define mib2_add_ip4(ni) -#define mib2_remove_ip4(ni) -#define mib2_add_route_ip4(dflt, ni) -#define mib2_remove_route_ip4(dflt, ni) - -/* UDP */ -#define mib2_udp_bind(pcb) -#define mib2_udp_unbind(pcb) -#endif /* LWIP_MIB2_CALLBACKS */ - -/* for source-code compatibility reasons only, can be removed (not used internally) */ -#define NETIF_INIT_SNMP MIB2_INIT_NETIF -#define snmp_add_ifinoctets(ni,value) MIB2_STATS_NETIF_ADD(ni, ifinoctets, value) -#define snmp_inc_ifinucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifinucastpkts) -#define snmp_inc_ifinnucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifinnucastpkts) -#define snmp_inc_ifindiscards(ni) MIB2_STATS_NETIF_INC(ni, ifindiscards) -#define snmp_inc_ifinerrors(ni) MIB2_STATS_NETIF_INC(ni, ifinerrors) -#define snmp_inc_ifinunknownprotos(ni) MIB2_STATS_NETIF_INC(ni, ifinunknownprotos) -#define snmp_add_ifoutoctets(ni,value) MIB2_STATS_NETIF_ADD(ni, ifoutoctets, value) -#define snmp_inc_ifoutucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifoutucastpkts) -#define snmp_inc_ifoutnucastpkts(ni) MIB2_STATS_NETIF_INC(ni, ifoutnucastpkts) -#define snmp_inc_ifoutdiscards(ni) MIB2_STATS_NETIF_INC(ni, ifoutdiscards) -#define snmp_inc_ifouterrors(ni) MIB2_STATS_NETIF_INC(ni, ifouterrors) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_SNMP_H */ diff --git a/core/c/include/lwip/sockets.h b/core/c/include/lwip/sockets.h deleted file mode 100755 index f448591..0000000 --- a/core/c/include/lwip/sockets.h +++ /dev/null @@ -1,688 +0,0 @@ -/** - * @file - * Socket API (to be used from non-TCPIP threads) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - - -#ifndef LWIP_HDR_SOCKETS_H -#define LWIP_HDR_SOCKETS_H - -#include "lwip/opt.h" - -#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/ip_addr.h" -#include "lwip/netif.h" -#include "lwip/err.h" -#include "lwip/inet.h" -#include "lwip/errno.h" - -#include - -#ifdef __cplusplus -extern "C" { -#endif - -/* If your port already typedef's sa_family_t, define SA_FAMILY_T_DEFINED - to prevent this code from redefining it. */ -#if !defined(sa_family_t) && !defined(SA_FAMILY_T_DEFINED) -typedef u8_t sa_family_t; -#endif -/* If your port already typedef's in_port_t, define IN_PORT_T_DEFINED - to prevent this code from redefining it. */ -#if !defined(in_port_t) && !defined(IN_PORT_T_DEFINED) -typedef u16_t in_port_t; -#endif - -#if LWIP_IPV4 -/* members are in network byte order */ -struct sockaddr_in { - u8_t sin_len; - sa_family_t sin_family; - in_port_t sin_port; - struct in_addr sin_addr; -#define SIN_ZERO_LEN 8 - char sin_zero[SIN_ZERO_LEN]; -}; -#endif /* LWIP_IPV4 */ - -#if LWIP_IPV6 -struct sockaddr_in6 { - u8_t sin6_len; /* length of this structure */ - sa_family_t sin6_family; /* AF_INET6 */ - in_port_t sin6_port; /* Transport layer port # */ - u32_t sin6_flowinfo; /* IPv6 flow information */ - struct in6_addr sin6_addr; /* IPv6 address */ - u32_t sin6_scope_id; /* Set of interfaces for scope */ -}; -#endif /* LWIP_IPV6 */ - -struct sockaddr { - u8_t sa_len; - sa_family_t sa_family; - char sa_data[14]; -}; - -struct sockaddr_storage { - u8_t s2_len; - sa_family_t ss_family; - char s2_data1[2]; - u32_t s2_data2[3]; -#if LWIP_IPV6 - u32_t s2_data3[3]; -#endif /* LWIP_IPV6 */ -}; - -/* If your port already typedef's socklen_t, define SOCKLEN_T_DEFINED - to prevent this code from redefining it. */ -#if !defined(socklen_t) && !defined(SOCKLEN_T_DEFINED) -typedef u32_t socklen_t; -#endif - -#if !defined IOV_MAX -#define IOV_MAX 0xFFFF -#elif IOV_MAX > 0xFFFF -#error "IOV_MAX larger than supported by LwIP" -#endif /* IOV_MAX */ - -#if !defined(iovec) -struct iovec { - void *iov_base; - size_t iov_len; -}; -#endif - -struct msghdr { - void *msg_name; - socklen_t msg_namelen; - struct iovec *msg_iov; - int msg_iovlen; - void *msg_control; - socklen_t msg_controllen; - int msg_flags; -}; - -/* struct msghdr->msg_flags bit field values */ -#define MSG_TRUNC 0x04 -#define MSG_CTRUNC 0x08 - -/* RFC 3542, Section 20: Ancillary Data */ -struct cmsghdr { - socklen_t cmsg_len; /* number of bytes, including header */ - int cmsg_level; /* originating protocol */ - int cmsg_type; /* protocol-specific type */ -}; -/* Data section follows header and possible padding, typically referred to as - unsigned char cmsg_data[]; */ - -/* cmsg header/data alignment. NOTE: we align to native word size (double word -size on 16-bit arch) so structures are not placed at an unaligned address. -16-bit arch needs double word to ensure 32-bit alignment because socklen_t -could be 32 bits. If we ever have cmsg data with a 64-bit variable, alignment -will need to increase long long */ -#define ALIGN_H(size) (((size) + sizeof(long) - 1U) & ~(sizeof(long)-1U)) -#define ALIGN_D(size) ALIGN_H(size) - -#define CMSG_FIRSTHDR(mhdr) \ - ((mhdr)->msg_controllen >= sizeof(struct cmsghdr) ? \ - (struct cmsghdr *)(mhdr)->msg_control : \ - (struct cmsghdr *)NULL) - -#define CMSG_NXTHDR(mhdr, cmsg) \ - (((cmsg) == NULL) ? CMSG_FIRSTHDR(mhdr) : \ - (((u8_t *)(cmsg) + ALIGN_H((cmsg)->cmsg_len) \ - + ALIGN_D(sizeof(struct cmsghdr)) > \ - (u8_t *)((mhdr)->msg_control) + (mhdr)->msg_controllen) ? \ - (struct cmsghdr *)NULL : \ - (struct cmsghdr *)((void*)((u8_t *)(cmsg) + \ - ALIGN_H((cmsg)->cmsg_len))))) - -#define CMSG_DATA(cmsg) ((void*)((u8_t *)(cmsg) + \ - ALIGN_D(sizeof(struct cmsghdr)))) - -#define CMSG_SPACE(length) (ALIGN_D(sizeof(struct cmsghdr)) + \ - ALIGN_H(length)) - -#define CMSG_LEN(length) (ALIGN_D(sizeof(struct cmsghdr)) + \ - length) - -/* Set socket options argument */ -#define IFNAMSIZ NETIF_NAMESIZE -struct ifreq { - char ifr_name[IFNAMSIZ]; /* Interface name */ -}; - -/* Socket protocol types (TCP/UDP/RAW) */ -#define SOCK_STREAM 1 -#define SOCK_DGRAM 2 -#define SOCK_RAW 3 - -/* - * Option flags per-socket. These must match the SOF_ flags in ip.h (checked in init.c) - */ -#define SO_REUSEADDR 0x0004 /* Allow local address reuse */ -#define SO_KEEPALIVE 0x0008 /* keep connections alive */ -#define SO_BROADCAST 0x0020 /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */ - - -/* - * Additional options, not kept in so_options. - */ -#define SO_DEBUG 0x0001 /* Unimplemented: turn on debugging info recording */ -#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */ -#define SO_DONTROUTE 0x0010 /* Unimplemented: just use interface addresses */ -#define SO_USELOOPBACK 0x0040 /* Unimplemented: bypass hardware when possible */ -#define SO_LINGER 0x0080 /* linger on close if data present */ -#define SO_DONTLINGER ((int)(~SO_LINGER)) -#define SO_OOBINLINE 0x0100 /* Unimplemented: leave received OOB data in line */ -#define SO_REUSEPORT 0x0200 /* Unimplemented: allow local address & port reuse */ -#define SO_SNDBUF 0x1001 /* Unimplemented: send buffer size */ -#define SO_RCVBUF 0x1002 /* receive buffer size */ -#define SO_SNDLOWAT 0x1003 /* Unimplemented: send low-water mark */ -#define SO_RCVLOWAT 0x1004 /* Unimplemented: receive low-water mark */ -#define SO_SNDTIMEO 0x1005 /* send timeout */ -#define SO_RCVTIMEO 0x1006 /* receive timeout */ -#define SO_ERROR 0x1007 /* get error status and clear */ -#define SO_TYPE 0x1008 /* get socket type */ -#define SO_CONTIMEO 0x1009 /* Unimplemented: connect timeout */ -#define SO_NO_CHECK 0x100a /* don't create UDP checksum */ -#define SO_BINDTODEVICE 0x100b /* bind to device */ - -/* - * Structure used for manipulating linger option. - */ -struct linger { - int l_onoff; /* option on/off */ - int l_linger; /* linger time in seconds */ -}; - -/* - * Level number for (get/set)sockopt() to apply to socket itself. - */ -#define SOL_SOCKET 0xfff /* options for socket level */ - - -#define AF_UNSPEC 0 -#define AF_INET 2 -#if LWIP_IPV6 -#define AF_INET6 10 -#else /* LWIP_IPV6 */ -#define AF_INET6 AF_UNSPEC -#endif /* LWIP_IPV6 */ -#define PF_INET AF_INET -#define PF_INET6 AF_INET6 -#define PF_UNSPEC AF_UNSPEC - -#define IPPROTO_IP 0 -#define IPPROTO_ICMP 1 -#define IPPROTO_TCP 6 -#define IPPROTO_UDP 17 -#if LWIP_IPV6 -#define IPPROTO_IPV6 41 -#define IPPROTO_ICMPV6 58 -#endif /* LWIP_IPV6 */ -#define IPPROTO_UDPLITE 136 -#define IPPROTO_RAW 255 - -/* Flags we can use with send and recv. */ -#define MSG_PEEK 0x01 /* Peeks at an incoming message */ -#define MSG_WAITALL 0x02 /* Unimplemented: Requests that the function block until the full amount of data requested can be returned */ -#define MSG_OOB 0x04 /* Unimplemented: Requests out-of-band data. The significance and semantics of out-of-band data are protocol-specific */ -#define MSG_DONTWAIT 0x08 /* Nonblocking i/o for this operation only */ -#define MSG_MORE 0x10 /* Sender will send more */ -#define MSG_NOSIGNAL 0x20 /* Uninmplemented: Requests not to send the SIGPIPE signal if an attempt to send is made on a stream-oriented socket that is no longer connected. */ - - -/* - * Options for level IPPROTO_IP - */ -#define IP_TOS 1 -#define IP_TTL 2 -#define IP_PKTINFO 8 - -#if LWIP_TCP -/* - * Options for level IPPROTO_TCP - */ -#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */ -#define TCP_KEEPALIVE 0x02 /* send KEEPALIVE probes when idle for pcb->keep_idle milliseconds */ -#define TCP_KEEPIDLE 0x03 /* set pcb->keep_idle - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */ -#define TCP_KEEPINTVL 0x04 /* set pcb->keep_intvl - Use seconds for get/setsockopt */ -#define TCP_KEEPCNT 0x05 /* set pcb->keep_cnt - Use number of probes sent for get/setsockopt */ -#endif /* LWIP_TCP */ - -#if LWIP_IPV6 -/* - * Options for level IPPROTO_IPV6 - */ -#define IPV6_CHECKSUM 7 /* RFC3542: calculate and insert the ICMPv6 checksum for raw sockets. */ -#define IPV6_V6ONLY 27 /* RFC3493: boolean control to restrict AF_INET6 sockets to IPv6 communications only. */ -#endif /* LWIP_IPV6 */ - -#if LWIP_UDP && LWIP_UDPLITE -/* - * Options for level IPPROTO_UDPLITE - */ -#define UDPLITE_SEND_CSCOV 0x01 /* sender checksum coverage */ -#define UDPLITE_RECV_CSCOV 0x02 /* minimal receiver checksum coverage */ -#endif /* LWIP_UDP && LWIP_UDPLITE*/ - - -#if LWIP_MULTICAST_TX_OPTIONS -/* - * Options and types for UDP multicast traffic handling - */ -#define IP_MULTICAST_TTL 5 -#define IP_MULTICAST_IF 6 -#define IP_MULTICAST_LOOP 7 -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - -#if LWIP_IGMP -/* - * Options and types related to multicast membership - */ -#define IP_ADD_MEMBERSHIP 3 -#define IP_DROP_MEMBERSHIP 4 - -typedef struct ip_mreq { - struct in_addr imr_multiaddr; /* IP multicast address of group */ - struct in_addr imr_interface; /* local IP address of interface */ -} ip_mreq; -#endif /* LWIP_IGMP */ - -#if LWIP_IPV4 -struct in_pktinfo { - unsigned int ipi_ifindex; /* Interface index */ - struct in_addr ipi_addr; /* Destination (from header) address */ -}; -#endif /* LWIP_IPV4 */ - -#if LWIP_IPV6_MLD -/* - * Options and types related to IPv6 multicast membership - */ -#define IPV6_JOIN_GROUP 12 -#define IPV6_ADD_MEMBERSHIP IPV6_JOIN_GROUP -#define IPV6_LEAVE_GROUP 13 -#define IPV6_DROP_MEMBERSHIP IPV6_LEAVE_GROUP - -typedef struct ipv6_mreq { - struct in6_addr ipv6mr_multiaddr; /* IPv6 multicast addr */ - unsigned int ipv6mr_interface; /* interface index, or 0 */ -} ipv6_mreq; -#endif /* LWIP_IPV6_MLD */ - -/* - * The Type of Service provides an indication of the abstract - * parameters of the quality of service desired. These parameters are - * to be used to guide the selection of the actual service parameters - * when transmitting a datagram through a particular network. Several - * networks offer service precedence, which somehow treats high - * precedence traffic as more important than other traffic (generally - * by accepting only traffic above a certain precedence at time of high - * load). The major choice is a three way tradeoff between low-delay, - * high-reliability, and high-throughput. - * The use of the Delay, Throughput, and Reliability indications may - * increase the cost (in some sense) of the service. In many networks - * better performance for one of these parameters is coupled with worse - * performance on another. Except for very unusual cases at most two - * of these three indications should be set. - */ -#define IPTOS_TOS_MASK 0x1E -#define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK) -#define IPTOS_LOWDELAY 0x10 -#define IPTOS_THROUGHPUT 0x08 -#define IPTOS_RELIABILITY 0x04 -#define IPTOS_LOWCOST 0x02 -#define IPTOS_MINCOST IPTOS_LOWCOST - -/* - * The Network Control precedence designation is intended to be used - * within a network only. The actual use and control of that - * designation is up to each network. The Internetwork Control - * designation is intended for use by gateway control originators only. - * If the actual use of these precedence designations is of concern to - * a particular network, it is the responsibility of that network to - * control the access to, and use of, those precedence designations. - */ -#define IPTOS_PREC_MASK 0xe0 -#define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK) -#define IPTOS_PREC_NETCONTROL 0xe0 -#define IPTOS_PREC_INTERNETCONTROL 0xc0 -#define IPTOS_PREC_CRITIC_ECP 0xa0 -#define IPTOS_PREC_FLASHOVERRIDE 0x80 -#define IPTOS_PREC_FLASH 0x60 -#define IPTOS_PREC_IMMEDIATE 0x40 -#define IPTOS_PREC_PRIORITY 0x20 -#define IPTOS_PREC_ROUTINE 0x00 - - -/* - * Commands for ioctlsocket(), taken from the BSD file fcntl.h. - * lwip_ioctl only supports FIONREAD and FIONBIO, for now - * - * Ioctl's have the command encoded in the lower word, - * and the size of any in or out parameters in the upper - * word. The high 2 bits of the upper word are used - * to encode the in/out status of the parameter; for now - * we restrict parameters to at most 128 bytes. - */ -#if !defined(FIONREAD) || !defined(FIONBIO) -#define IOCPARM_MASK 0x7fU /* parameters must be < 128 bytes */ -#define IOC_VOID 0x20000000UL /* no parameters */ -#define IOC_OUT 0x40000000UL /* copy out parameters */ -#define IOC_IN 0x80000000UL /* copy in parameters */ -#define IOC_INOUT (IOC_IN|IOC_OUT) - /* 0x20000000 distinguishes new & - old ioctl's */ -#define _IO(x,y) ((long)(IOC_VOID|((x)<<8)|(y))) - -#define _IOR(x,y,t) ((long)(IOC_OUT|((sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))) - -#define _IOW(x,y,t) ((long)(IOC_IN|((sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))) -#endif /* !defined(FIONREAD) || !defined(FIONBIO) */ - -#ifndef FIONREAD -#define FIONREAD _IOR('f', 127, unsigned long) /* get # bytes to read */ -#endif -#ifndef FIONBIO -#define FIONBIO _IOW('f', 126, unsigned long) /* set/clear non-blocking i/o */ -#endif - -/* Socket I/O Controls: unimplemented */ -#ifndef SIOCSHIWAT -#define SIOCSHIWAT _IOW('s', 0, unsigned long) /* set high watermark */ -#define SIOCGHIWAT _IOR('s', 1, unsigned long) /* get high watermark */ -#define SIOCSLOWAT _IOW('s', 2, unsigned long) /* set low watermark */ -#define SIOCGLOWAT _IOR('s', 3, unsigned long) /* get low watermark */ -#define SIOCATMARK _IOR('s', 7, unsigned long) /* at oob mark? */ -#endif - -/* commands for fnctl */ -#ifndef F_GETFL -#define F_GETFL 3 -#endif -#ifndef F_SETFL -#define F_SETFL 4 -#endif - -/* File status flags and file access modes for fnctl, - these are bits in an int. */ -#ifndef O_NONBLOCK -#define O_NONBLOCK 1 /* nonblocking I/O */ -#endif -#ifndef O_NDELAY -#define O_NDELAY O_NONBLOCK /* same as O_NONBLOCK, for compatibility */ -#endif -#ifndef O_RDONLY -#define O_RDONLY 2 -#endif -#ifndef O_WRONLY -#define O_WRONLY 4 -#endif -#ifndef O_RDWR -#define O_RDWR (O_RDONLY|O_WRONLY) -#endif - -#ifndef SHUT_RD - #define SHUT_RD 0 - #define SHUT_WR 1 - #define SHUT_RDWR 2 -#endif - -/* FD_SET used for lwip_select */ -#ifndef FD_SET -#undef FD_SETSIZE -/* Make FD_SETSIZE match NUM_SOCKETS in socket.c */ -#define FD_SETSIZE MEMP_NUM_NETCONN -#define LWIP_SELECT_MAXNFDS (FD_SETSIZE + LWIP_SOCKET_OFFSET) -#define FDSETSAFESET(n, code) do { \ - if (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0)) { \ - code; }} while(0) -#define FDSETSAFEGET(n, code) (((n) - LWIP_SOCKET_OFFSET < MEMP_NUM_NETCONN) && (((int)(n) - LWIP_SOCKET_OFFSET) >= 0) ?\ - (code) : 0) -#define FD_SET(n, p) FDSETSAFESET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] | (1 << (((n)-LWIP_SOCKET_OFFSET) & 7)))) -#define FD_CLR(n, p) FDSETSAFESET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] = (u8_t)((p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] & ~(1 << (((n)-LWIP_SOCKET_OFFSET) & 7)))) -#define FD_ISSET(n,p) FDSETSAFEGET(n, (p)->fd_bits[((n)-LWIP_SOCKET_OFFSET)/8] & (1 << (((n)-LWIP_SOCKET_OFFSET) & 7))) -#define FD_ZERO(p) memset((void*)(p), 0, sizeof(*(p))) - -typedef struct fd_set -{ - unsigned char fd_bits [(FD_SETSIZE+7)/8]; -} fd_set; - -#elif FD_SETSIZE < (LWIP_SOCKET_OFFSET + MEMP_NUM_NETCONN) -#error "external FD_SETSIZE too small for number of sockets" -#else -#define LWIP_SELECT_MAXNFDS FD_SETSIZE -#endif /* FD_SET */ - -/* poll-related defines and types */ -/* @todo: find a better way to guard the definition of these defines and types if already defined */ -#if !defined(POLLIN) && !defined(POLLOUT) -#define POLLIN 0x1 -#define POLLOUT 0x2 -#define POLLERR 0x4 -#define POLLNVAL 0x8 -/* Below values are unimplemented */ -#define POLLRDNORM 0x10 -#define POLLRDBAND 0x20 -#define POLLPRI 0x40 -#define POLLWRNORM 0x80 -#define POLLWRBAND 0x100 -#define POLLHUP 0x200 -typedef unsigned int nfds_t; -struct pollfd -{ - int fd; - short events; - short revents; -}; -#endif - -/** LWIP_TIMEVAL_PRIVATE: if you want to use the struct timeval provided - * by your system, set this to 0 and include in cc.h */ -#ifndef LWIP_TIMEVAL_PRIVATE -#define LWIP_TIMEVAL_PRIVATE 1 -#endif - -#if LWIP_TIMEVAL_PRIVATE -struct timeval { - long tv_sec; /* seconds */ - long tv_usec; /* and microseconds */ -}; -#endif /* LWIP_TIMEVAL_PRIVATE */ - -#define lwip_socket_init() /* Compatibility define, no init needed. */ -void lwip_socket_thread_init(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: initialize thread-local semaphore */ -void lwip_socket_thread_cleanup(void); /* LWIP_NETCONN_SEM_PER_THREAD==1: destroy thread-local semaphore */ - -#if LWIP_COMPAT_SOCKETS == 2 -/* This helps code parsers/code completion by not having the COMPAT functions as defines */ -#define lwip_accept accept -#define lwip_bind bind -#define lwip_shutdown shutdown -#define lwip_getpeername getpeername -#define lwip_getsockname getsockname -#define lwip_setsockopt setsockopt -#define lwip_getsockopt getsockopt -#define lwip_close closesocket -#define lwip_connect connect -#define lwip_listen listen -#define lwip_recv recv -#define lwip_recvmsg recvmsg -#define lwip_recvfrom recvfrom -#define lwip_send send -#define lwip_sendmsg sendmsg -#define lwip_sendto sendto -#define lwip_socket socket -#if LWIP_SOCKET_SELECT -#define lwip_select select -#endif -#if LWIP_SOCKET_POLL -#define lwip_poll poll -#endif -#define lwip_ioctl ioctlsocket -#define lwip_inet_ntop inet_ntop -#define lwip_inet_pton inet_pton - -#if LWIP_POSIX_SOCKETS_IO_NAMES -#define lwip_read read -#define lwip_readv readv -#define lwip_write write -#define lwip_writev writev -#undef lwip_close -#define lwip_close close -#define closesocket(s) close(s) -int fcntl(int s, int cmd, ...); -#undef lwip_ioctl -#define lwip_ioctl ioctl -#define ioctlsocket ioctl -#endif /* LWIP_POSIX_SOCKETS_IO_NAMES */ -#endif /* LWIP_COMPAT_SOCKETS == 2 */ - -int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen); -int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen); -int lwip_shutdown(int s, int how); -int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen); -int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen); -int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen); -int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen); - int lwip_close(int s); -int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen); -int lwip_listen(int s, int backlog); -ssize_t lwip_recv(int s, void *mem, size_t len, int flags); -ssize_t lwip_read(int s, void *mem, size_t len); -ssize_t lwip_readv(int s, const struct iovec *iov, int iovcnt); -ssize_t lwip_recvfrom(int s, void *mem, size_t len, int flags, - struct sockaddr *from, socklen_t *fromlen); -ssize_t lwip_recvmsg(int s, struct msghdr *message, int flags); -ssize_t lwip_send(int s, const void *dataptr, size_t size, int flags); -ssize_t lwip_sendmsg(int s, const struct msghdr *message, int flags); -ssize_t lwip_sendto(int s, const void *dataptr, size_t size, int flags, - const struct sockaddr *to, socklen_t tolen); -int lwip_socket(int domain, int type, int protocol); -ssize_t lwip_write(int s, const void *dataptr, size_t size); -ssize_t lwip_writev(int s, const struct iovec *iov, int iovcnt); -#if LWIP_SOCKET_SELECT -int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset, - struct timeval *timeout); -#endif -#if LWIP_SOCKET_POLL -int lwip_poll(struct pollfd *fds, nfds_t nfds, int timeout); -#endif -int lwip_ioctl(int s, long cmd, void *argp); -int lwip_fcntl(int s, int cmd, int val); -const char *lwip_inet_ntop(int af, const void *src, char *dst, socklen_t size); -int lwip_inet_pton(int af, const char *src, void *dst); - -#if LWIP_COMPAT_SOCKETS -#if LWIP_COMPAT_SOCKETS != 2 -/** @ingroup socket */ -#define accept(s,addr,addrlen) lwip_accept(s,addr,addrlen) -/** @ingroup socket */ -#define bind(s,name,namelen) lwip_bind(s,name,namelen) -/** @ingroup socket */ -#define shutdown(s,how) lwip_shutdown(s,how) -/** @ingroup socket */ -#define getpeername(s,name,namelen) lwip_getpeername(s,name,namelen) -/** @ingroup socket */ -#define getsockname(s,name,namelen) lwip_getsockname(s,name,namelen) -/** @ingroup socket */ -#define setsockopt(s,level,optname,opval,optlen) lwip_setsockopt(s,level,optname,opval,optlen) -/** @ingroup socket */ -#define getsockopt(s,level,optname,opval,optlen) lwip_getsockopt(s,level,optname,opval,optlen) -/** @ingroup socket */ -#define closesocket(s) lwip_close(s) -/** @ingroup socket */ -#define connect(s,name,namelen) lwip_connect(s,name,namelen) -/** @ingroup socket */ -#define listen(s,backlog) lwip_listen(s,backlog) -/** @ingroup socket */ -#define recv(s,mem,len,flags) lwip_recv(s,mem,len,flags) -/** @ingroup socket */ -#define recvmsg(s,message,flags) lwip_recvmsg(s,message,flags) -/** @ingroup socket */ -#define recvfrom(s,mem,len,flags,from,fromlen) lwip_recvfrom(s,mem,len,flags,from,fromlen) -/** @ingroup socket */ -#define send(s,dataptr,size,flags) lwip_send(s,dataptr,size,flags) -/** @ingroup socket */ -#define sendmsg(s,message,flags) lwip_sendmsg(s,message,flags) -/** @ingroup socket */ -#define sendto(s,dataptr,size,flags,to,tolen) lwip_sendto(s,dataptr,size,flags,to,tolen) -/** @ingroup socket */ -#define socket(domain,type,protocol) lwip_socket(domain,type,protocol) -#if LWIP_SOCKET_SELECT -/** @ingroup socket */ -#define select(maxfdp1,readset,writeset,exceptset,timeout) lwip_select(maxfdp1,readset,writeset,exceptset,timeout) -#endif -#if LWIP_SOCKET_POLL -/** @ingroup socket */ -#define poll(fds,nfds,timeout) lwip_poll(fds,nfds,timeout) -#endif -/** @ingroup socket */ -#define ioctlsocket(s,cmd,argp) lwip_ioctl(s,cmd,argp) -/** @ingroup socket */ -#define inet_ntop(af,src,dst,size) lwip_inet_ntop(af,src,dst,size) -/** @ingroup socket */ -#define inet_pton(af,src,dst) lwip_inet_pton(af,src,dst) - -#if LWIP_POSIX_SOCKETS_IO_NAMES -/** @ingroup socket */ -#define read(s,mem,len) lwip_read(s,mem,len) -/** @ingroup socket */ -#define readv(s,iov,iovcnt) lwip_readv(s,iov,iovcnt) -/** @ingroup socket */ -#define write(s,dataptr,len) lwip_write(s,dataptr,len) -/** @ingroup socket */ -#define writev(s,iov,iovcnt) lwip_writev(s,iov,iovcnt) -/** @ingroup socket */ -#define close(s) lwip_close(s) -/** @ingroup socket */ -#define fcntl(s,cmd,val) lwip_fcntl(s,cmd,val) -/** @ingroup socket */ -#define ioctl(s,cmd,argp) lwip_ioctl(s,cmd,argp) -#endif /* LWIP_POSIX_SOCKETS_IO_NAMES */ -#endif /* LWIP_COMPAT_SOCKETS != 2 */ - -#endif /* LWIP_COMPAT_SOCKETS */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_SOCKET */ - -#endif /* LWIP_HDR_SOCKETS_H */ diff --git a/core/c/include/lwip/stats.h b/core/c/include/lwip/stats.h deleted file mode 100755 index 1cf4e59..0000000 --- a/core/c/include/lwip/stats.h +++ /dev/null @@ -1,491 +0,0 @@ -/** - * @file - * Statistics API (to be used from TCPIP thread) - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_STATS_H -#define LWIP_HDR_STATS_H - -#include "lwip/opt.h" - -#include "lwip/mem.h" -#include "lwip/memp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_STATS - -#ifndef LWIP_STATS_LARGE -#define LWIP_STATS_LARGE 0 -#endif - -#if LWIP_STATS_LARGE -#define STAT_COUNTER u32_t -#define STAT_COUNTER_F U32_F -#else -#define STAT_COUNTER u16_t -#define STAT_COUNTER_F U16_F -#endif - -/** Protocol related stats */ -struct stats_proto { - STAT_COUNTER xmit; /* Transmitted packets. */ - STAT_COUNTER recv; /* Received packets. */ - STAT_COUNTER fw; /* Forwarded packets. */ - STAT_COUNTER drop; /* Dropped packets. */ - STAT_COUNTER chkerr; /* Checksum error. */ - STAT_COUNTER lenerr; /* Invalid length error. */ - STAT_COUNTER memerr; /* Out of memory error. */ - STAT_COUNTER rterr; /* Routing error. */ - STAT_COUNTER proterr; /* Protocol error. */ - STAT_COUNTER opterr; /* Error in options. */ - STAT_COUNTER err; /* Misc error. */ - STAT_COUNTER cachehit; -}; - -/** IGMP stats */ -struct stats_igmp { - STAT_COUNTER xmit; /* Transmitted packets. */ - STAT_COUNTER recv; /* Received packets. */ - STAT_COUNTER drop; /* Dropped packets. */ - STAT_COUNTER chkerr; /* Checksum error. */ - STAT_COUNTER lenerr; /* Invalid length error. */ - STAT_COUNTER memerr; /* Out of memory error. */ - STAT_COUNTER proterr; /* Protocol error. */ - STAT_COUNTER rx_v1; /* Received v1 frames. */ - STAT_COUNTER rx_group; /* Received group-specific queries. */ - STAT_COUNTER rx_general; /* Received general queries. */ - STAT_COUNTER rx_report; /* Received reports. */ - STAT_COUNTER tx_join; /* Sent joins. */ - STAT_COUNTER tx_leave; /* Sent leaves. */ - STAT_COUNTER tx_report; /* Sent reports. */ -}; - -/** Memory stats */ -struct stats_mem { -#if defined(LWIP_DEBUG) || LWIP_STATS_DISPLAY - const char *name; -#endif /* defined(LWIP_DEBUG) || LWIP_STATS_DISPLAY */ - STAT_COUNTER err; - mem_size_t avail; - mem_size_t used; - mem_size_t max; - STAT_COUNTER illegal; -}; - -/** System element stats */ -struct stats_syselem { - STAT_COUNTER used; - STAT_COUNTER max; - STAT_COUNTER err; -}; - -/** System stats */ -struct stats_sys { - struct stats_syselem sem; - struct stats_syselem mutex; - struct stats_syselem mbox; -}; - -/** SNMP MIB2 stats */ -struct stats_mib2 { - /* IP */ - u32_t ipinhdrerrors; - u32_t ipinaddrerrors; - u32_t ipinunknownprotos; - u32_t ipindiscards; - u32_t ipindelivers; - u32_t ipoutrequests; - u32_t ipoutdiscards; - u32_t ipoutnoroutes; - u32_t ipreasmoks; - u32_t ipreasmfails; - u32_t ipfragoks; - u32_t ipfragfails; - u32_t ipfragcreates; - u32_t ipreasmreqds; - u32_t ipforwdatagrams; - u32_t ipinreceives; - - /* TCP */ - u32_t tcpactiveopens; - u32_t tcppassiveopens; - u32_t tcpattemptfails; - u32_t tcpestabresets; - u32_t tcpoutsegs; - u32_t tcpretranssegs; - u32_t tcpinsegs; - u32_t tcpinerrs; - u32_t tcpoutrsts; - - /* UDP */ - u32_t udpindatagrams; - u32_t udpnoports; - u32_t udpinerrors; - u32_t udpoutdatagrams; - - /* ICMP */ - u32_t icmpinmsgs; - u32_t icmpinerrors; - u32_t icmpindestunreachs; - u32_t icmpintimeexcds; - u32_t icmpinparmprobs; - u32_t icmpinsrcquenchs; - u32_t icmpinredirects; - u32_t icmpinechos; - u32_t icmpinechoreps; - u32_t icmpintimestamps; - u32_t icmpintimestampreps; - u32_t icmpinaddrmasks; - u32_t icmpinaddrmaskreps; - u32_t icmpoutmsgs; - u32_t icmpouterrors; - u32_t icmpoutdestunreachs; - u32_t icmpouttimeexcds; - u32_t icmpoutechos; /* can be incremented by user application ('ping') */ - u32_t icmpoutechoreps; -}; - -/** - * @ingroup netif_mib2 - * SNMP MIB2 interface stats - */ -struct stats_mib2_netif_ctrs { - /** The total number of octets received on the interface, including framing characters */ - u32_t ifinoctets; - /** The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were - * not addressed to a multicast or broadcast address at this sub-layer */ - u32_t ifinucastpkts; - /** The number of packets, delivered by this sub-layer to a higher (sub-)layer, which were - * addressed to a multicast or broadcast address at this sub-layer */ - u32_t ifinnucastpkts; - /** The number of inbound packets which were chosen to be discarded even though no errors had - * been detected to prevent their being deliverable to a higher-layer protocol. One possible - * reason for discarding such a packet could be to free up buffer space */ - u32_t ifindiscards; - /** For packet-oriented interfaces, the number of inbound packets that contained errors - * preventing them from being deliverable to a higher-layer protocol. For character- - * oriented or fixed-length interfaces, the number of inbound transmission units that - * contained errors preventing them from being deliverable to a higher-layer protocol. */ - u32_t ifinerrors; - /** For packet-oriented interfaces, the number of packets received via the interface which - * were discarded because of an unknown or unsupported protocol. For character-oriented - * or fixed-length interfaces that support protocol multiplexing the number of transmission - * units received via the interface which were discarded because of an unknown or unsupported - * protocol. For any interface that does not support protocol multiplexing, this counter will - * always be 0 */ - u32_t ifinunknownprotos; - /** The total number of octets transmitted out of the interface, including framing characters. */ - u32_t ifoutoctets; - /** The total number of packets that higher-level protocols requested be transmitted, and - * which were not addressed to a multicast or broadcast address at this sub-layer, including - * those that were discarded or not sent. */ - u32_t ifoutucastpkts; - /** The total number of packets that higher-level protocols requested be transmitted, and which - * were addressed to a multicast or broadcast address at this sub-layer, including - * those that were discarded or not sent. */ - u32_t ifoutnucastpkts; - /** The number of outbound packets which were chosen to be discarded even though no errors had - * been detected to prevent their being transmitted. One possible reason for discarding - * such a packet could be to free up buffer space. */ - u32_t ifoutdiscards; - /** For packet-oriented interfaces, the number of outbound packets that could not be transmitted - * because of errors. For character-oriented or fixed-length interfaces, the number of outbound - * transmission units that could not be transmitted because of errors. */ - u32_t ifouterrors; -}; - -/** lwIP stats container */ -struct stats_ { -#if LINK_STATS - /** Link level */ - struct stats_proto link; -#endif -#if ETHARP_STATS - /** ARP */ - struct stats_proto etharp; -#endif -#if IPFRAG_STATS - /** Fragmentation */ - struct stats_proto ip_frag; -#endif -#if IP_STATS - /** IP */ - struct stats_proto ip; -#endif -#if ICMP_STATS - /** ICMP */ - struct stats_proto icmp; -#endif -#if IGMP_STATS - /** IGMP */ - struct stats_igmp igmp; -#endif -#if UDP_STATS - /** UDP */ - struct stats_proto udp; -#endif -#if TCP_STATS - /** TCP */ - struct stats_proto tcp; -#endif -#if MEM_STATS - /** Heap */ - struct stats_mem mem; -#endif -#if MEMP_STATS - /** Internal memory pools */ - struct stats_mem *memp[MEMP_MAX]; -#endif -#if SYS_STATS - /** System */ - struct stats_sys sys; -#endif -#if IP6_STATS - /** IPv6 */ - struct stats_proto ip6; -#endif -#if ICMP6_STATS - /** ICMP6 */ - struct stats_proto icmp6; -#endif -#if IP6_FRAG_STATS - /** IPv6 fragmentation */ - struct stats_proto ip6_frag; -#endif -#if MLD6_STATS - /** Multicast listener discovery */ - struct stats_igmp mld6; -#endif -#if ND6_STATS - /** Neighbor discovery */ - struct stats_proto nd6; -#endif -#if MIB2_STATS - /** SNMP MIB2 */ - struct stats_mib2 mib2; -#endif -}; - -/** Global variable containing lwIP internal statistics. Add this to your debugger's watchlist. */ -extern struct stats_ lwip_stats; - -/** Init statistics */ -void stats_init(void); - -#define STATS_INC(x) ++lwip_stats.x -#define STATS_DEC(x) --lwip_stats.x -#define STATS_INC_USED(x, y, type) do { lwip_stats.x.used = (type)(lwip_stats.x.used + y); \ - if (lwip_stats.x.max < lwip_stats.x.used) { \ - lwip_stats.x.max = lwip_stats.x.used; \ - } \ - } while(0) -#define STATS_GET(x) lwip_stats.x -#else /* LWIP_STATS */ -#define stats_init() -#define STATS_INC(x) -#define STATS_DEC(x) -#define STATS_INC_USED(x, y, type) -#endif /* LWIP_STATS */ - -#if TCP_STATS -#define TCP_STATS_INC(x) STATS_INC(x) -#define TCP_STATS_DISPLAY() stats_display_proto(&lwip_stats.tcp, "TCP") -#else -#define TCP_STATS_INC(x) -#define TCP_STATS_DISPLAY() -#endif - -#if UDP_STATS -#define UDP_STATS_INC(x) STATS_INC(x) -#define UDP_STATS_DISPLAY() stats_display_proto(&lwip_stats.udp, "UDP") -#else -#define UDP_STATS_INC(x) -#define UDP_STATS_DISPLAY() -#endif - -#if ICMP_STATS -#define ICMP_STATS_INC(x) STATS_INC(x) -#define ICMP_STATS_DISPLAY() stats_display_proto(&lwip_stats.icmp, "ICMP") -#else -#define ICMP_STATS_INC(x) -#define ICMP_STATS_DISPLAY() -#endif - -#if IGMP_STATS -#define IGMP_STATS_INC(x) STATS_INC(x) -#define IGMP_STATS_DISPLAY() stats_display_igmp(&lwip_stats.igmp, "IGMP") -#else -#define IGMP_STATS_INC(x) -#define IGMP_STATS_DISPLAY() -#endif - -#if IP_STATS -#define IP_STATS_INC(x) STATS_INC(x) -#define IP_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip, "IP") -#else -#define IP_STATS_INC(x) -#define IP_STATS_DISPLAY() -#endif - -#if IPFRAG_STATS -#define IPFRAG_STATS_INC(x) STATS_INC(x) -#define IPFRAG_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip_frag, "IP_FRAG") -#else -#define IPFRAG_STATS_INC(x) -#define IPFRAG_STATS_DISPLAY() -#endif - -#if ETHARP_STATS -#define ETHARP_STATS_INC(x) STATS_INC(x) -#define ETHARP_STATS_DISPLAY() stats_display_proto(&lwip_stats.etharp, "ETHARP") -#else -#define ETHARP_STATS_INC(x) -#define ETHARP_STATS_DISPLAY() -#endif - -#if LINK_STATS -#define LINK_STATS_INC(x) STATS_INC(x) -#define LINK_STATS_DISPLAY() stats_display_proto(&lwip_stats.link, "LINK") -#else -#define LINK_STATS_INC(x) -#define LINK_STATS_DISPLAY() -#endif - -#if MEM_STATS -#define MEM_STATS_AVAIL(x, y) lwip_stats.mem.x = y -#define MEM_STATS_INC(x) STATS_INC(mem.x) -#define MEM_STATS_INC_USED(x, y) STATS_INC_USED(mem, y, mem_size_t) -#define MEM_STATS_DEC_USED(x, y) lwip_stats.mem.x = (mem_size_t)((lwip_stats.mem.x) - (y)) -#define MEM_STATS_DISPLAY() stats_display_mem(&lwip_stats.mem, "HEAP") -#else -#define MEM_STATS_AVAIL(x, y) -#define MEM_STATS_INC(x) -#define MEM_STATS_INC_USED(x, y) -#define MEM_STATS_DEC_USED(x, y) -#define MEM_STATS_DISPLAY() -#endif - - #if MEMP_STATS -#define MEMP_STATS_DEC(x, i) STATS_DEC(memp[i]->x) -#define MEMP_STATS_DISPLAY(i) stats_display_memp(lwip_stats.memp[i], i) -#define MEMP_STATS_GET(x, i) STATS_GET(memp[i]->x) - #else -#define MEMP_STATS_DEC(x, i) -#define MEMP_STATS_DISPLAY(i) -#define MEMP_STATS_GET(x, i) 0 -#endif - -#if SYS_STATS -#define SYS_STATS_INC(x) STATS_INC(sys.x) -#define SYS_STATS_DEC(x) STATS_DEC(sys.x) -#define SYS_STATS_INC_USED(x) STATS_INC_USED(sys.x, 1, STAT_COUNTER) -#define SYS_STATS_DISPLAY() stats_display_sys(&lwip_stats.sys) -#else -#define SYS_STATS_INC(x) -#define SYS_STATS_DEC(x) -#define SYS_STATS_INC_USED(x) -#define SYS_STATS_DISPLAY() -#endif - -#if IP6_STATS -#define IP6_STATS_INC(x) STATS_INC(x) -#define IP6_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip6, "IPv6") -#else -#define IP6_STATS_INC(x) -#define IP6_STATS_DISPLAY() -#endif - -#if ICMP6_STATS -#define ICMP6_STATS_INC(x) STATS_INC(x) -#define ICMP6_STATS_DISPLAY() stats_display_proto(&lwip_stats.icmp6, "ICMPv6") -#else -#define ICMP6_STATS_INC(x) -#define ICMP6_STATS_DISPLAY() -#endif - -#if IP6_FRAG_STATS -#define IP6_FRAG_STATS_INC(x) STATS_INC(x) -#define IP6_FRAG_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip6_frag, "IPv6 FRAG") -#else -#define IP6_FRAG_STATS_INC(x) -#define IP6_FRAG_STATS_DISPLAY() -#endif - -#if MLD6_STATS -#define MLD6_STATS_INC(x) STATS_INC(x) -#define MLD6_STATS_DISPLAY() stats_display_igmp(&lwip_stats.mld6, "MLDv1") -#else -#define MLD6_STATS_INC(x) -#define MLD6_STATS_DISPLAY() -#endif - -#if ND6_STATS -#define ND6_STATS_INC(x) STATS_INC(x) -#define ND6_STATS_DISPLAY() stats_display_proto(&lwip_stats.nd6, "ND") -#else -#define ND6_STATS_INC(x) -#define ND6_STATS_DISPLAY() -#endif - -#if MIB2_STATS -#define MIB2_STATS_INC(x) STATS_INC(x) -#else -#define MIB2_STATS_INC(x) -#endif - -/* Display of statistics */ -#if LWIP_STATS_DISPLAY -void stats_display(void); -void stats_display_proto(struct stats_proto *proto, const char *name); -void stats_display_igmp(struct stats_igmp *igmp, const char *name); -void stats_display_mem(struct stats_mem *mem, const char *name); -void stats_display_memp(struct stats_mem *mem, int index); -void stats_display_sys(struct stats_sys *sys); -#else /* LWIP_STATS_DISPLAY */ -#define stats_display() -#define stats_display_proto(proto, name) -#define stats_display_igmp(igmp, name) -#define stats_display_mem(mem, name) -#define stats_display_memp(mem, index) -#define stats_display_sys(sys) -#endif /* LWIP_STATS_DISPLAY */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_STATS_H */ diff --git a/core/c/include/lwip/sys.h b/core/c/include/lwip/sys.h deleted file mode 100755 index cd83470..0000000 --- a/core/c/include/lwip/sys.h +++ /dev/null @@ -1,560 +0,0 @@ -/** - * @file - * OS abstraction layer - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - */ - -#ifndef LWIP_HDR_SYS_H -#define LWIP_HDR_SYS_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if NO_SYS - -/* For a totally minimal and standalone system, we provide null - definitions of the sys_ functions. */ -typedef u8_t sys_sem_t; -typedef u8_t sys_mutex_t; -typedef u8_t sys_mbox_t; - -#define sys_sem_new(s, c) ERR_OK -#define sys_sem_signal(s) -#define sys_sem_wait(s) -#define sys_arch_sem_wait(s,t) -#define sys_sem_free(s) -#define sys_sem_valid(s) 0 -#define sys_sem_valid_val(s) 0 -#define sys_sem_set_invalid(s) -#define sys_sem_set_invalid_val(s) -#define sys_mutex_new(mu) ERR_OK -#define sys_mutex_lock(mu) -#define sys_mutex_unlock(mu) -#define sys_mutex_free(mu) -#define sys_mutex_valid(mu) 0 -#define sys_mutex_set_invalid(mu) -#define sys_mbox_new(m, s) ERR_OK -#define sys_mbox_fetch(m,d) -#define sys_mbox_tryfetch(m,d) -#define sys_mbox_post(m,d) -#define sys_mbox_trypost(m,d) -#define sys_mbox_free(m) -#define sys_mbox_valid(m) -#define sys_mbox_valid_val(m) -#define sys_mbox_set_invalid(m) -#define sys_mbox_set_invalid_val(m) - -#define sys_thread_new(n,t,a,s,p) - -#define sys_msleep(t) - -#else /* NO_SYS */ - -/** Return code for timeouts from sys_arch_mbox_fetch and sys_arch_sem_wait */ -#define SYS_ARCH_TIMEOUT 0xffffffffUL - -/** sys_mbox_tryfetch() returns SYS_MBOX_EMPTY if appropriate. - * For now we use the same magic value, but we allow this to change in future. - */ -#define SYS_MBOX_EMPTY SYS_ARCH_TIMEOUT - -#include "lwip/err.h" -#include "arch/sys_arch.h" - -/** Function prototype for thread functions */ -typedef void (*lwip_thread_fn)(void *arg); - -/* Function prototypes for functions to be implemented by platform ports - (in sys_arch.c) */ - -/* Mutex functions: */ - -/** Define LWIP_COMPAT_MUTEX if the port has no mutexes and binary semaphores - should be used instead */ -#ifndef LWIP_COMPAT_MUTEX -#define LWIP_COMPAT_MUTEX 0 -#endif - -#if LWIP_COMPAT_MUTEX -/* for old ports that don't have mutexes: define them to binary semaphores */ -#define sys_mutex_t sys_sem_t -#define sys_mutex_new(mutex) sys_sem_new(mutex, 1) -#define sys_mutex_lock(mutex) sys_sem_wait(mutex) -#define sys_mutex_unlock(mutex) sys_sem_signal(mutex) -#define sys_mutex_free(mutex) sys_sem_free(mutex) -#define sys_mutex_valid(mutex) sys_sem_valid(mutex) -#define sys_mutex_set_invalid(mutex) sys_sem_set_invalid(mutex) - -#else /* LWIP_COMPAT_MUTEX */ - -/** - * @ingroup sys_mutex - * Create a new mutex. - * Note that mutexes are expected to not be taken recursively by the lwIP code, - * so both implementation types (recursive or non-recursive) should work. - * The mutex is allocated to the memory that 'mutex' - * points to (which can be both a pointer or the actual OS structure). - * If the mutex has been created, ERR_OK should be returned. Returning any - * other error will provide a hint what went wrong, but except for assertions, - * no real error handling is implemented. - * - * @param mutex pointer to the mutex to create - * @return ERR_OK if successful, another err_t otherwise - */ -err_t sys_mutex_new(sys_mutex_t *mutex); -/** - * @ingroup sys_mutex - * Blocks the thread until the mutex can be grabbed. - * @param mutex the mutex to lock - */ -void sys_mutex_lock(sys_mutex_t *mutex); -/** - * @ingroup sys_mutex - * Releases the mutex previously locked through 'sys_mutex_lock()'. - * @param mutex the mutex to unlock - */ -void sys_mutex_unlock(sys_mutex_t *mutex); -/** - * @ingroup sys_mutex - * Deallocates a mutex. - * @param mutex the mutex to delete - */ -void sys_mutex_free(sys_mutex_t *mutex); -#ifndef sys_mutex_valid -/** - * @ingroup sys_mutex - * Returns 1 if the mutes is valid, 0 if it is not valid. - * When using pointers, a simple way is to check the pointer for != NULL. - * When directly using OS structures, implementing this may be more complex. - * This may also be a define, in which case the function is not prototyped. - */ -int sys_mutex_valid(sys_mutex_t *mutex); -#endif -#ifndef sys_mutex_set_invalid -/** - * @ingroup sys_mutex - * Invalidate a mutex so that sys_mutex_valid() returns 0. - * ATTENTION: This does NOT mean that the mutex shall be deallocated: - * sys_mutex_free() is always called before calling this function! - * This may also be a define, in which case the function is not prototyped. - */ -void sys_mutex_set_invalid(sys_mutex_t *mutex); -#endif -#endif /* LWIP_COMPAT_MUTEX */ - -/* Semaphore functions: */ - -/** - * @ingroup sys_sem - * Create a new semaphore - * Creates a new semaphore. The semaphore is allocated to the memory that 'sem' - * points to (which can be both a pointer or the actual OS structure). - * The "count" argument specifies the initial state of the semaphore (which is - * either 0 or 1). - * If the semaphore has been created, ERR_OK should be returned. Returning any - * other error will provide a hint what went wrong, but except for assertions, - * no real error handling is implemented. - * - * @param sem pointer to the semaphore to create - * @param count initial count of the semaphore - * @return ERR_OK if successful, another err_t otherwise - */ -err_t sys_sem_new(sys_sem_t *sem, u8_t count); -/** - * @ingroup sys_sem - * Signals a semaphore - * @param sem the semaphore to signal - */ -void sys_sem_signal(sys_sem_t *sem); -/** - * @ingroup sys_sem - * Blocks the thread while waiting for the semaphore to be signaled. If the - * "timeout" argument is non-zero, the thread should only be blocked for the - * specified time (measured in milliseconds). If the "timeout" argument is zero, - * the thread should be blocked until the semaphore is signalled. - * - * The return value is SYS_ARCH_TIMEOUT if the semaphore wasn't signaled within - * the specified time or any other value if it was signaled (with or without - * waiting). - * Notice that lwIP implements a function with a similar name, - * sys_sem_wait(), that uses the sys_arch_sem_wait() function. - * - * @param sem the semaphore to wait for - * @param timeout timeout in milliseconds to wait (0 = wait forever) - * @return SYS_ARCH_TIMEOUT on timeout, any other value on success - */ -u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout); -/** - * @ingroup sys_sem - * Deallocates a semaphore. - * @param sem semaphore to delete - */ -void sys_sem_free(sys_sem_t *sem); -/** Wait for a semaphore - forever/no timeout */ -#define sys_sem_wait(sem) sys_arch_sem_wait(sem, 0) -#ifndef sys_sem_valid -/** - * @ingroup sys_sem - * Returns 1 if the semaphore is valid, 0 if it is not valid. - * When using pointers, a simple way is to check the pointer for != NULL. - * When directly using OS structures, implementing this may be more complex. - * This may also be a define, in which case the function is not prototyped. - */ -int sys_sem_valid(sys_sem_t *sem); -#endif -#ifndef sys_sem_set_invalid -/** - * @ingroup sys_sem - * Invalidate a semaphore so that sys_sem_valid() returns 0. - * ATTENTION: This does NOT mean that the semaphore shall be deallocated: - * sys_sem_free() is always called before calling this function! - * This may also be a define, in which case the function is not prototyped. - */ -void sys_sem_set_invalid(sys_sem_t *sem); -#endif -#ifndef sys_sem_valid_val -/** - * Same as sys_sem_valid() but taking a value, not a pointer - */ -#define sys_sem_valid_val(sem) sys_sem_valid(&(sem)) -#endif -#ifndef sys_sem_set_invalid_val -/** - * Same as sys_sem_set_invalid() but taking a value, not a pointer - */ -#define sys_sem_set_invalid_val(sem) sys_sem_set_invalid(&(sem)) -#endif - -#ifndef sys_msleep -/** - * @ingroup sys_misc - * Sleep for specified number of ms - */ -void sys_msleep(u32_t ms); /* only has a (close to) 1 ms resolution. */ -#endif - -/* Mailbox functions. */ - -/** - * @ingroup sys_mbox - * Creates an empty mailbox for maximum "size" elements. Elements stored - * in mailboxes are pointers. You have to define macros "_MBOX_SIZE" - * in your lwipopts.h, or ignore this parameter in your implementation - * and use a default size. - * If the mailbox has been created, ERR_OK should be returned. Returning any - * other error will provide a hint what went wrong, but except for assertions, - * no real error handling is implemented. - * - * @param mbox pointer to the mbox to create - * @param size (minimum) number of messages in this mbox - * @return ERR_OK if successful, another err_t otherwise - */ -err_t sys_mbox_new(sys_mbox_t *mbox, int size); -/** - * @ingroup sys_mbox - * Post a message to an mbox - may not fail - * -> blocks if full, only to be used from tasks NOT from ISR! - * - * @param mbox mbox to posts the message - * @param msg message to post (ATTENTION: can be NULL) - */ -void sys_mbox_post(sys_mbox_t *mbox, void *msg); -/** - * @ingroup sys_mbox - * Try to post a message to an mbox - may fail if full. - * Can be used from ISR (if the sys arch layer allows this). - * Returns ERR_MEM if it is full, else, ERR_OK if the "msg" is posted. - * - * @param mbox mbox to posts the message - * @param msg message to post (ATTENTION: can be NULL) - */ -err_t sys_mbox_trypost(sys_mbox_t *mbox, void *msg); -/** - * @ingroup sys_mbox - * Try to post a message to an mbox - may fail if full. - * To be be used from ISR. - * Returns ERR_MEM if it is full, else, ERR_OK if the "msg" is posted. - * - * @param mbox mbox to posts the message - * @param msg message to post (ATTENTION: can be NULL) - */ -err_t sys_mbox_trypost_fromisr(sys_mbox_t *mbox, void *msg); -/** - * @ingroup sys_mbox - * Blocks the thread until a message arrives in the mailbox, but does - * not block the thread longer than "timeout" milliseconds (similar to - * the sys_arch_sem_wait() function). If "timeout" is 0, the thread should - * be blocked until a message arrives. The "msg" argument is a result - * parameter that is set by the function (i.e., by doing "*msg = - * ptr"). The "msg" parameter maybe NULL to indicate that the message - * should be dropped. - * The return values are the same as for the sys_arch_sem_wait() function: - * SYS_ARCH_TIMEOUT if there was a timeout, any other value if a messages - * is received. - * - * Note that a function with a similar name, sys_mbox_fetch(), is - * implemented by lwIP. - * - * @param mbox mbox to get a message from - * @param msg pointer where the message is stored - * @param timeout maximum time (in milliseconds) to wait for a message (0 = wait forever) - * @return SYS_ARCH_TIMEOUT on timeout, any other value if a message has been received - */ -u32_t sys_arch_mbox_fetch(sys_mbox_t *mbox, void **msg, u32_t timeout); -/* Allow port to override with a macro, e.g. special timeout for sys_arch_mbox_fetch() */ -#ifndef sys_arch_mbox_tryfetch -/** - * @ingroup sys_mbox - * This is similar to sys_arch_mbox_fetch, however if a message is not - * present in the mailbox, it immediately returns with the code - * SYS_MBOX_EMPTY. On success 0 is returned. - * To allow for efficient implementations, this can be defined as a - * function-like macro in sys_arch.h instead of a normal function. For - * example, a naive implementation could be: - * \#define sys_arch_mbox_tryfetch(mbox,msg) sys_arch_mbox_fetch(mbox,msg,1) - * although this would introduce unnecessary delays. - * - * @param mbox mbox to get a message from - * @param msg pointer where the message is stored - * @return 0 (milliseconds) if a message has been received - * or SYS_MBOX_EMPTY if the mailbox is empty - */ -u32_t sys_arch_mbox_tryfetch(sys_mbox_t *mbox, void **msg); -#endif -/** - * For now, we map straight to sys_arch implementation. - */ -#define sys_mbox_tryfetch(mbox, msg) sys_arch_mbox_tryfetch(mbox, msg) -/** - * @ingroup sys_mbox - * Deallocates a mailbox. If there are messages still present in the - * mailbox when the mailbox is deallocated, it is an indication of a - * programming error in lwIP and the developer should be notified. - * - * @param mbox mbox to delete - */ -void sys_mbox_free(sys_mbox_t *mbox); -#define sys_mbox_fetch(mbox, msg) sys_arch_mbox_fetch(mbox, msg, 0) -#ifndef sys_mbox_valid -/** - * @ingroup sys_mbox - * Returns 1 if the mailbox is valid, 0 if it is not valid. - * When using pointers, a simple way is to check the pointer for != NULL. - * When directly using OS structures, implementing this may be more complex. - * This may also be a define, in which case the function is not prototyped. - */ -int sys_mbox_valid(sys_mbox_t *mbox); -#endif -#ifndef sys_mbox_set_invalid -/** - * @ingroup sys_mbox - * Invalidate a mailbox so that sys_mbox_valid() returns 0. - * ATTENTION: This does NOT mean that the mailbox shall be deallocated: - * sys_mbox_free() is always called before calling this function! - * This may also be a define, in which case the function is not prototyped. - */ -void sys_mbox_set_invalid(sys_mbox_t *mbox); -#endif -#ifndef sys_mbox_valid_val -/** - * Same as sys_mbox_valid() but taking a value, not a pointer - */ -#define sys_mbox_valid_val(mbox) sys_mbox_valid(&(mbox)) -#endif -#ifndef sys_mbox_set_invalid_val -/** - * Same as sys_mbox_set_invalid() but taking a value, not a pointer - */ -#define sys_mbox_set_invalid_val(mbox) sys_mbox_set_invalid(&(mbox)) -#endif - - -/** - * @ingroup sys_misc - * The only thread function: - * Starts a new thread named "name" with priority "prio" that will begin its - * execution in the function "thread()". The "arg" argument will be passed as an - * argument to the thread() function. The stack size to used for this thread is - * the "stacksize" parameter. The id of the new thread is returned. Both the id - * and the priority are system dependent. - * ATTENTION: although this function returns a value, it MUST NOT FAIL (ports have to assert this!) - * - * @param name human-readable name for the thread (used for debugging purposes) - * @param thread thread-function - * @param arg parameter passed to 'thread' - * @param stacksize stack size in bytes for the new thread (may be ignored by ports) - * @param prio priority of the new thread (may be ignored by ports) */ -sys_thread_t sys_thread_new(const char *name, lwip_thread_fn thread, void *arg, int stacksize, int prio); - -#endif /* NO_SYS */ - -/** - * @ingroup sys_misc - * sys_init() must be called before anything else. - * Initialize the sys_arch layer. - */ -void sys_init(void); - -#ifndef sys_jiffies -/** - * Ticks/jiffies since power up. - */ -u32_t sys_jiffies(void); -#endif - -/** - * @ingroup sys_time - * Returns the current time in milliseconds, - * may be the same as sys_jiffies or at least based on it. - * Don't care for wraparound, this is only used for time diffs. - * Not implementing this function means you cannot use some modules (e.g. TCP - * timestamps, internal timeouts for NO_SYS==1). - */ -u32_t sys_now(void); - -/* Critical Region Protection */ -/* These functions must be implemented in the sys_arch.c file. - In some implementations they can provide a more light-weight protection - mechanism than using semaphores. Otherwise semaphores can be used for - implementation */ -#ifndef SYS_ARCH_PROTECT -/** SYS_LIGHTWEIGHT_PROT - * define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection - * for certain critical regions during buffer allocation, deallocation and memory - * allocation and deallocation. - */ -#if SYS_LIGHTWEIGHT_PROT - -/** - * @ingroup sys_prot - * SYS_ARCH_DECL_PROTECT - * declare a protection variable. This macro will default to defining a variable of - * type sys_prot_t. If a particular port needs a different implementation, then - * this macro may be defined in sys_arch.h. - */ -#define SYS_ARCH_DECL_PROTECT(lev) sys_prot_t lev -/** - * @ingroup sys_prot - * SYS_ARCH_PROTECT - * Perform a "fast" protect. This could be implemented by - * disabling interrupts for an embedded system or by using a semaphore or - * mutex. The implementation should allow calling SYS_ARCH_PROTECT when - * already protected. The old protection level is returned in the variable - * "lev". This macro will default to calling the sys_arch_protect() function - * which should be implemented in sys_arch.c. If a particular port needs a - * different implementation, then this macro may be defined in sys_arch.h - */ -#define SYS_ARCH_PROTECT(lev) lev = sys_arch_protect() -/** - * @ingroup sys_prot - * SYS_ARCH_UNPROTECT - * Perform a "fast" set of the protection level to "lev". This could be - * implemented by setting the interrupt level to "lev" within the MACRO or by - * using a semaphore or mutex. This macro will default to calling the - * sys_arch_unprotect() function which should be implemented in - * sys_arch.c. If a particular port needs a different implementation, then - * this macro may be defined in sys_arch.h - */ -#define SYS_ARCH_UNPROTECT(lev) sys_arch_unprotect(lev) -sys_prot_t sys_arch_protect(void); -void sys_arch_unprotect(sys_prot_t pval); - -#else - -#define SYS_ARCH_DECL_PROTECT(lev) -#define SYS_ARCH_PROTECT(lev) -#define SYS_ARCH_UNPROTECT(lev) - -#endif /* SYS_LIGHTWEIGHT_PROT */ - -#endif /* SYS_ARCH_PROTECT */ - -/* - * Macros to set/get and increase/decrease variables in a thread-safe way. - * Use these for accessing variable that are used from more than one thread. - */ - -#ifndef SYS_ARCH_INC -#define SYS_ARCH_INC(var, val) do { \ - SYS_ARCH_DECL_PROTECT(old_level); \ - SYS_ARCH_PROTECT(old_level); \ - var += val; \ - SYS_ARCH_UNPROTECT(old_level); \ - } while(0) -#endif /* SYS_ARCH_INC */ - -#ifndef SYS_ARCH_DEC -#define SYS_ARCH_DEC(var, val) do { \ - SYS_ARCH_DECL_PROTECT(old_level); \ - SYS_ARCH_PROTECT(old_level); \ - var -= val; \ - SYS_ARCH_UNPROTECT(old_level); \ - } while(0) -#endif /* SYS_ARCH_DEC */ - -#ifndef SYS_ARCH_GET -#define SYS_ARCH_GET(var, ret) do { \ - SYS_ARCH_DECL_PROTECT(old_level); \ - SYS_ARCH_PROTECT(old_level); \ - ret = var; \ - SYS_ARCH_UNPROTECT(old_level); \ - } while(0) -#endif /* SYS_ARCH_GET */ - -#ifndef SYS_ARCH_SET -#define SYS_ARCH_SET(var, val) do { \ - SYS_ARCH_DECL_PROTECT(old_level); \ - SYS_ARCH_PROTECT(old_level); \ - var = val; \ - SYS_ARCH_UNPROTECT(old_level); \ - } while(0) -#endif /* SYS_ARCH_SET */ - -#ifndef SYS_ARCH_LOCKED -#define SYS_ARCH_LOCKED(code) do { \ - SYS_ARCH_DECL_PROTECT(old_level); \ - SYS_ARCH_PROTECT(old_level); \ - code; \ - SYS_ARCH_UNPROTECT(old_level); \ - } while(0) -#endif /* SYS_ARCH_LOCKED */ - - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_SYS_H */ diff --git a/core/c/include/lwip/tcp.h b/core/c/include/lwip/tcp.h deleted file mode 100755 index 24a7f12..0000000 --- a/core/c/include/lwip/tcp.h +++ /dev/null @@ -1,502 +0,0 @@ -/** - * @file - * TCP API (to be used from TCPIP thread)\n - * See also @ref tcp_raw - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_TCP_H -#define LWIP_HDR_TCP_H - -#include "lwip/opt.h" - -#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/tcpbase.h" -#include "lwip/mem.h" -#include "lwip/pbuf.h" -#include "lwip/ip.h" -#include "lwip/icmp.h" -#include "lwip/err.h" -#include "lwip/ip6.h" -#include "lwip/ip6_addr.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct tcp_pcb; -struct tcp_pcb_listen; - -/** Function prototype for tcp accept callback functions. Called when a new - * connection can be accepted on a listening pcb. - * - * @param arg Additional argument to pass to the callback function (@see tcp_arg()) - * @param newpcb The new connection pcb - * @param err An error code if there has been an error accepting. - * Only return ERR_ABRT if you have called tcp_abort from within the - * callback function! - */ -typedef err_t (*tcp_accept_fn)(void *arg, struct tcp_pcb *newpcb, err_t err); - -/** Function prototype for tcp receive callback functions. Called when data has - * been received. - * - * @param arg Additional argument to pass to the callback function (@see tcp_arg()) - * @param tpcb The connection pcb which received data - * @param p The received data (or NULL when the connection has been closed!) - * @param err An error code if there has been an error receiving - * Only return ERR_ABRT if you have called tcp_abort from within the - * callback function! - */ -typedef err_t (*tcp_recv_fn)(void *arg, struct tcp_pcb *tpcb, - struct pbuf *p, err_t err); - -/** Function prototype for tcp sent callback functions. Called when sent data has - * been acknowledged by the remote side. Use it to free corresponding resources. - * This also means that the pcb has now space available to send new data. - * - * @param arg Additional argument to pass to the callback function (@see tcp_arg()) - * @param tpcb The connection pcb for which data has been acknowledged - * @param len The amount of bytes acknowledged - * @return ERR_OK: try to send some data by calling tcp_output - * Only return ERR_ABRT if you have called tcp_abort from within the - * callback function! - */ -typedef err_t (*tcp_sent_fn)(void *arg, struct tcp_pcb *tpcb, - u16_t len); - -/** Function prototype for tcp poll callback functions. Called periodically as - * specified by @see tcp_poll. - * - * @param arg Additional argument to pass to the callback function (@see tcp_arg()) - * @param tpcb tcp pcb - * @return ERR_OK: try to send some data by calling tcp_output - * Only return ERR_ABRT if you have called tcp_abort from within the - * callback function! - */ -typedef err_t (*tcp_poll_fn)(void *arg, struct tcp_pcb *tpcb); - -/** Function prototype for tcp error callback functions. Called when the pcb - * receives a RST or is unexpectedly closed for any other reason. - * - * @note The corresponding pcb is already freed when this callback is called! - * - * @param arg Additional argument to pass to the callback function (@see tcp_arg()) - * @param err Error code to indicate why the pcb has been closed - * ERR_ABRT: aborted through tcp_abort or by a TCP timer - * ERR_RST: the connection was reset by the remote host - */ -typedef void (*tcp_err_fn)(void *arg, err_t err); - -/** Function prototype for tcp connected callback functions. Called when a pcb - * is connected to the remote side after initiating a connection attempt by - * calling tcp_connect(). - * - * @param arg Additional argument to pass to the callback function (@see tcp_arg()) - * @param tpcb The connection pcb which is connected - * @param err An unused error code, always ERR_OK currently ;-) @todo! - * Only return ERR_ABRT if you have called tcp_abort from within the - * callback function! - * - * @note When a connection attempt fails, the error callback is currently called! - */ -typedef err_t (*tcp_connected_fn)(void *arg, struct tcp_pcb *tpcb, err_t err); - -#if LWIP_WND_SCALE -#define RCV_WND_SCALE(pcb, wnd) (((wnd) >> (pcb)->rcv_scale)) -#define SND_WND_SCALE(pcb, wnd) (((wnd) << (pcb)->snd_scale)) -#define TCPWND16(x) ((u16_t)LWIP_MIN((x), 0xFFFF)) -#define TCP_WND_MAX(pcb) ((tcpwnd_size_t)(((pcb)->flags & TF_WND_SCALE) ? TCP_WND : TCPWND16(TCP_WND))) -#else -#define RCV_WND_SCALE(pcb, wnd) (wnd) -#define SND_WND_SCALE(pcb, wnd) (wnd) -#define TCPWND16(x) (x) -#define TCP_WND_MAX(pcb) TCP_WND -#endif -/* Increments a tcpwnd_size_t and holds at max value rather than rollover */ -#define TCP_WND_INC(wnd, inc) do { \ - if ((tcpwnd_size_t)(wnd + inc) >= wnd) { \ - wnd = (tcpwnd_size_t)(wnd + inc); \ - } else { \ - wnd = (tcpwnd_size_t)-1; \ - } \ - } while(0) - -#if LWIP_TCP_SACK_OUT -/** SACK ranges to include in ACK packets. - * SACK entry is invalid if left==right. */ -struct tcp_sack_range { - /** Left edge of the SACK: the first acknowledged sequence number. */ - u32_t left; - /** Right edge of the SACK: the last acknowledged sequence number +1 (so first NOT acknowledged). */ - u32_t right; -}; -#endif /* LWIP_TCP_SACK_OUT */ - -/** Function prototype for deallocation of arguments. Called *just before* the - * pcb is freed, so don't expect to be able to do anything with this pcb! - * - * @param id ext arg id (allocated via @ref tcp_ext_arg_alloc_id) - * @param data pointer to the data (set via @ref tcp_ext_arg_set before) - */ -typedef void (*tcp_extarg_callback_pcb_destroyed_fn)(u8_t id, void *data); - -/** Function prototype to transition arguments from a listening pcb to an accepted pcb - * - * @param id ext arg id (allocated via @ref tcp_ext_arg_alloc_id) - * @param lpcb the listening pcb accepting a connection - * @param cpcb the newly allocated connection pcb - * @return ERR_OK if OK, any error if connection should be dropped - */ -typedef err_t (*tcp_extarg_callback_passive_open_fn)(u8_t id, struct tcp_pcb_listen *lpcb, struct tcp_pcb *cpcb); - -/** A table of callback functions that is invoked for ext arguments */ -struct tcp_ext_arg_callbacks { - /** @ref tcp_extarg_callback_pcb_destroyed_fn */ - tcp_extarg_callback_pcb_destroyed_fn destroy; - /** @ref tcp_extarg_callback_passive_open_fn */ - tcp_extarg_callback_passive_open_fn passive_open; -}; - -#define LWIP_TCP_PCB_NUM_EXT_ARG_ID_INVALID 0xFF - -#if LWIP_TCP_PCB_NUM_EXT_ARGS -/* This is the structure for ext args in tcp pcbs (used as array) */ -struct tcp_pcb_ext_args { - const struct tcp_ext_arg_callbacks *callbacks; - void *data; -}; -/* This is a helper define to prevent zero size arrays if disabled */ -#define TCP_PCB_EXTARGS struct tcp_pcb_ext_args ext_args[LWIP_TCP_PCB_NUM_EXT_ARGS]; -#else -#define TCP_PCB_EXTARGS -#endif - -typedef u16_t tcpflags_t; -#define TCP_ALLFLAGS 0xffffU - -/** - * members common to struct tcp_pcb and struct tcp_listen_pcb - */ -#define TCP_PCB_COMMON(type) \ - type *next; /* for the linked list */ \ - void *callback_arg; \ - TCP_PCB_EXTARGS \ - enum tcp_state state; /* TCP state */ \ - u8_t prio; \ - /* ports are in host byte order */ \ - u16_t local_port - - -/** the TCP protocol control block for listening pcbs */ -struct tcp_pcb_listen { -/** Common members of all PCB types */ - IP_PCB; -/** Protocol specific PCB members */ - TCP_PCB_COMMON(struct tcp_pcb_listen); - -#if LWIP_CALLBACK_API - /* Function to call when a listener has been connected. */ - tcp_accept_fn accept; -#endif /* LWIP_CALLBACK_API */ - -#if TCP_LISTEN_BACKLOG - u8_t backlog; - u8_t accepts_pending; -#endif /* TCP_LISTEN_BACKLOG */ -}; - - -/** the TCP protocol control block */ -struct tcp_pcb { -/** common PCB members */ - IP_PCB; -/** protocol specific PCB members */ - TCP_PCB_COMMON(struct tcp_pcb); - - /* ports are in host byte order */ - u16_t remote_port; - - tcpflags_t flags; -#define TF_ACK_DELAY 0x01U /* Delayed ACK. */ -#define TF_ACK_NOW 0x02U /* Immediate ACK. */ -#define TF_INFR 0x04U /* In fast recovery. */ -#define TF_CLOSEPEND 0x08U /* If this is set, tcp_close failed to enqueue the FIN (retried in tcp_tmr) */ -#define TF_RXCLOSED 0x10U /* rx closed by tcp_shutdown */ -#define TF_FIN 0x20U /* Connection was closed locally (FIN segment enqueued). */ -#define TF_NODELAY 0x40U /* Disable Nagle algorithm */ -#define TF_NAGLEMEMERR 0x80U /* nagle enabled, memerr, try to output to prevent delayed ACK to happen */ -#if LWIP_WND_SCALE -#define TF_WND_SCALE 0x0100U /* Window Scale option enabled */ -#endif -#if TCP_LISTEN_BACKLOG -#define TF_BACKLOGPEND 0x0200U /* If this is set, a connection pcb has increased the backlog on its listener */ -#endif -#if LWIP_TCP_TIMESTAMPS -#define TF_TIMESTAMP 0x0400U /* Timestamp option enabled */ -#endif -#define TF_RTO 0x0800U /* RTO timer has fired, in-flight data moved to unsent and being retransmitted */ -#if LWIP_TCP_SACK_OUT -#define TF_SACK 0x1000U /* Selective ACKs enabled */ -#endif - - /* the rest of the fields are in host byte order - as we have to do some math with them */ - - /* Timers */ - u8_t polltmr, pollinterval; - u8_t last_timer; - u32_t tmr; - - /* receiver variables */ - u32_t rcv_nxt; /* next seqno expected */ - tcpwnd_size_t rcv_wnd; /* receiver window available */ - tcpwnd_size_t rcv_ann_wnd; /* receiver window to announce */ - u32_t rcv_ann_right_edge; /* announced right edge of window */ - -#if LWIP_TCP_SACK_OUT - /* SACK ranges to include in ACK packets (entry is invalid if left==right) */ - struct tcp_sack_range rcv_sacks[LWIP_TCP_MAX_SACK_NUM]; -#define LWIP_TCP_SACK_VALID(pcb, idx) ((pcb)->rcv_sacks[idx].left != (pcb)->rcv_sacks[idx].right) -#endif /* LWIP_TCP_SACK_OUT */ - - /* Retransmission timer. */ - s16_t rtime; - - u16_t mss; /* maximum segment size */ - - /* RTT (round trip time) estimation variables */ - u32_t rttest; /* RTT estimate in 500ms ticks */ - u32_t rtseq; /* sequence number being timed */ - s16_t sa, sv; /* @see "Congestion Avoidance and Control" by Van Jacobson and Karels */ - - s16_t rto; /* retransmission time-out (in ticks of TCP_SLOW_INTERVAL) */ - u8_t nrtx; /* number of retransmissions */ - - /* fast retransmit/recovery */ - u8_t dupacks; - u32_t lastack; /* Highest acknowledged seqno. */ - - /* congestion avoidance/control variables */ - tcpwnd_size_t cwnd; - tcpwnd_size_t ssthresh; - - /* first byte following last rto byte */ - u32_t rto_end; - - /* sender variables */ - u32_t snd_nxt; /* next new seqno to be sent */ - u32_t snd_wl1, snd_wl2; /* Sequence and acknowledgement numbers of last - window update. */ - u32_t snd_lbb; /* Sequence number of next byte to be buffered. */ - tcpwnd_size_t snd_wnd; /* sender window */ - tcpwnd_size_t snd_wnd_max; /* the maximum sender window announced by the remote host */ - - tcpwnd_size_t snd_buf; /* Available buffer space for sending (in bytes). */ -#define TCP_SNDQUEUELEN_OVERFLOW (0xffffU-3) - u16_t snd_queuelen; /* Number of pbufs currently in the send buffer. */ - -#if TCP_OVERSIZE - /* Extra bytes available at the end of the last pbuf in unsent. */ - u16_t unsent_oversize; -#endif /* TCP_OVERSIZE */ - - tcpwnd_size_t bytes_acked; - - /* These are ordered by sequence number: */ - struct tcp_seg *unsent; /* Unsent (queued) segments. */ - struct tcp_seg *unacked; /* Sent but unacknowledged segments. */ -#if TCP_QUEUE_OOSEQ - struct tcp_seg *ooseq; /* Received out of sequence segments. */ -#endif /* TCP_QUEUE_OOSEQ */ - - struct pbuf *refused_data; /* Data previously received but not yet taken by upper layer */ - -#if LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG - struct tcp_pcb_listen* listener; -#endif /* LWIP_CALLBACK_API || TCP_LISTEN_BACKLOG */ - -#if LWIP_CALLBACK_API - /* Function to be called when more send buffer space is available. */ - tcp_sent_fn sent; - /* Function to be called when (in-sequence) data has arrived. */ - tcp_recv_fn recv; - /* Function to be called when a connection has been set up. */ - tcp_connected_fn connected; - /* Function which is called periodically. */ - tcp_poll_fn poll; - /* Function to be called whenever a fatal error occurs. */ - tcp_err_fn errf; -#endif /* LWIP_CALLBACK_API */ - -#if LWIP_TCP_TIMESTAMPS - u32_t ts_lastacksent; - u32_t ts_recent; -#endif /* LWIP_TCP_TIMESTAMPS */ - - /* idle time before KEEPALIVE is sent */ - u32_t keep_idle; -#if LWIP_TCP_KEEPALIVE - u32_t keep_intvl; - u32_t keep_cnt; -#endif /* LWIP_TCP_KEEPALIVE */ - - /* Persist timer counter */ - u8_t persist_cnt; - /* Persist timer back-off */ - u8_t persist_backoff; - /* Number of persist probes */ - u8_t persist_probe; - - /* KEEPALIVE counter */ - u8_t keep_cnt_sent; - -#if LWIP_WND_SCALE - u8_t snd_scale; - u8_t rcv_scale; -#endif -}; - -#if LWIP_EVENT_API - -enum lwip_event { - LWIP_EVENT_ACCEPT, - LWIP_EVENT_SENT, - LWIP_EVENT_RECV, - LWIP_EVENT_CONNECTED, - LWIP_EVENT_POLL, - LWIP_EVENT_ERR -}; - -err_t lwip_tcp_event(void *arg, struct tcp_pcb *pcb, - enum lwip_event, - struct pbuf *p, - u16_t size, - err_t err); - -#endif /* LWIP_EVENT_API */ - -/* Application program's interface: */ -struct tcp_pcb * tcp_new (void); -struct tcp_pcb * tcp_new_ip_type (u8_t type); - -void tcp_arg (struct tcp_pcb *pcb, void *arg); -#if LWIP_CALLBACK_API -void tcp_recv (struct tcp_pcb *pcb, tcp_recv_fn recv); -void tcp_sent (struct tcp_pcb *pcb, tcp_sent_fn sent); -void tcp_err (struct tcp_pcb *pcb, tcp_err_fn err); -void tcp_accept (struct tcp_pcb *pcb, tcp_accept_fn accept); -#endif /* LWIP_CALLBACK_API */ -void tcp_poll (struct tcp_pcb *pcb, tcp_poll_fn poll, u8_t interval); - -#define tcp_set_flags(pcb, set_flags) do { (pcb)->flags = (tcpflags_t)((pcb)->flags | (set_flags)); } while(0) -#define tcp_clear_flags(pcb, clr_flags) do { (pcb)->flags = (tcpflags_t)((pcb)->flags & (tcpflags_t)(~(clr_flags) & TCP_ALLFLAGS)); } while(0) -#define tcp_is_flag_set(pcb, flag) (((pcb)->flags & (flag)) != 0) - -#if LWIP_TCP_TIMESTAMPS -#define tcp_mss(pcb) (((pcb)->flags & TF_TIMESTAMP) ? ((pcb)->mss - 12) : (pcb)->mss) -#else /* LWIP_TCP_TIMESTAMPS */ -/** @ingroup tcp_raw */ -#define tcp_mss(pcb) ((pcb)->mss) -#endif /* LWIP_TCP_TIMESTAMPS */ -/** @ingroup tcp_raw */ -#define tcp_sndbuf(pcb) (TCPWND16((pcb)->snd_buf)) -/** @ingroup tcp_raw */ -#define tcp_sndqueuelen(pcb) ((pcb)->snd_queuelen) -/** @ingroup tcp_raw */ -#define tcp_nagle_disable(pcb) tcp_set_flags(pcb, TF_NODELAY) -/** @ingroup tcp_raw */ -#define tcp_nagle_enable(pcb) tcp_clear_flags(pcb, TF_NODELAY) -/** @ingroup tcp_raw */ -#define tcp_nagle_disabled(pcb) tcp_is_flag_set(pcb, TF_NODELAY) - -#if TCP_LISTEN_BACKLOG -#define tcp_backlog_set(pcb, new_backlog) do { \ - LWIP_ASSERT("pcb->state == LISTEN (called for wrong pcb?)", (pcb)->state == LISTEN); \ - ((struct tcp_pcb_listen *)(pcb))->backlog = ((new_backlog) ? (new_backlog) : 1); } while(0) -void tcp_backlog_delayed(struct tcp_pcb* pcb); -void tcp_backlog_accepted(struct tcp_pcb* pcb); -#else /* TCP_LISTEN_BACKLOG */ -#define tcp_backlog_set(pcb, new_backlog) -#define tcp_backlog_delayed(pcb) -#define tcp_backlog_accepted(pcb) -#endif /* TCP_LISTEN_BACKLOG */ -#define tcp_accepted(pcb) do { LWIP_UNUSED_ARG(pcb); } while(0) /* compatibility define, not needed any more */ - -void tcp_recved (struct tcp_pcb *pcb, u16_t len); -err_t tcp_bind (struct tcp_pcb *pcb, const ip_addr_t *ipaddr, - u16_t port); -void tcp_bind_netif(struct tcp_pcb *pcb, const struct netif *netif); -err_t tcp_connect (struct tcp_pcb *pcb, const ip_addr_t *ipaddr, - u16_t port, tcp_connected_fn connected); - -struct tcp_pcb * tcp_listen_with_backlog_and_err(struct tcp_pcb *pcb, u8_t backlog, err_t *err); -struct tcp_pcb * tcp_listen_with_backlog(struct tcp_pcb *pcb, u8_t backlog); -/** @ingroup tcp_raw */ -#define tcp_listen(pcb) tcp_listen_with_backlog(pcb, TCP_DEFAULT_LISTEN_BACKLOG) - -void tcp_abort (struct tcp_pcb *pcb); -err_t tcp_close (struct tcp_pcb *pcb); -err_t tcp_shutdown(struct tcp_pcb *pcb, int shut_rx, int shut_tx); - -err_t tcp_write (struct tcp_pcb *pcb, const void *dataptr, u16_t len, - u8_t apiflags); - -void tcp_setprio (struct tcp_pcb *pcb, u8_t prio); - -err_t tcp_output (struct tcp_pcb *pcb); - -err_t tcp_tcp_get_tcp_addrinfo(struct tcp_pcb *pcb, int local, ip_addr_t *addr, u16_t *port); - -err_t tcp_process_refused_data(struct tcp_pcb *pcb); - -#define tcp_dbg_get_tcp_state(pcb) ((pcb)->state) - -/* for compatibility with older implementation */ -#define tcp_new_ip6() tcp_new_ip_type(IPADDR_TYPE_V6) - -#if LWIP_TCP_PCB_NUM_EXT_ARGS -u8_t tcp_ext_arg_alloc_id(void); -void tcp_ext_arg_set_callbacks(struct tcp_pcb *pcb, uint8_t id, const struct tcp_ext_arg_callbacks * const callbacks); -void tcp_ext_arg_set(struct tcp_pcb *pcb, uint8_t id, void *arg); -void *tcp_ext_arg_get(const struct tcp_pcb *pcb, uint8_t id); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_TCP */ - -#endif /* LWIP_HDR_TCP_H */ diff --git a/core/c/include/lwip/tcpbase.h b/core/c/include/lwip/tcpbase.h deleted file mode 100755 index 6614b80..0000000 --- a/core/c/include/lwip/tcpbase.h +++ /dev/null @@ -1,88 +0,0 @@ -/** - * @file - * Base TCP API definitions shared by TCP and ALTCP\n - * See also @ref tcp_raw - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_TCPBASE_H -#define LWIP_HDR_TCPBASE_H - -#include "lwip/opt.h" - -#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */ - -#ifdef __cplusplus -extern "C" { -#endif - - -#if LWIP_WND_SCALE -typedef u32_t tcpwnd_size_t; -#else -typedef u16_t tcpwnd_size_t; -#endif - -enum tcp_state { - CLOSED = 0, - LISTEN = 1, - SYN_SENT = 2, - SYN_RCVD = 3, - ESTABLISHED = 4, - FIN_WAIT_1 = 5, - FIN_WAIT_2 = 6, - CLOSE_WAIT = 7, - CLOSING = 8, - LAST_ACK = 9, - TIME_WAIT = 10 -}; -/* ATTENTION: this depends on state number ordering! */ -#define TCP_STATE_IS_CLOSING(state) ((state) >= FIN_WAIT_1) - -/* Flags for "apiflags" parameter in tcp_write */ -#define TCP_WRITE_FLAG_COPY 0x01 -#define TCP_WRITE_FLAG_MORE 0x02 - -#define TCP_PRIO_MIN 1 -#define TCP_PRIO_NORMAL 64 -#define TCP_PRIO_MAX 127 - -const char* tcp_debug_state_str(enum tcp_state s); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_TCP */ - -#endif /* LWIP_HDR_TCPBASE_H */ diff --git a/core/c/include/lwip/tcpip.h b/core/c/include/lwip/tcpip.h deleted file mode 100755 index ec14701..0000000 --- a/core/c/include/lwip/tcpip.h +++ /dev/null @@ -1,113 +0,0 @@ -/** - * @file - * Functions to sync with TCPIP thread - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_TCPIP_H -#define LWIP_HDR_TCPIP_H - -#include "lwip/opt.h" - -#if !NO_SYS /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/err.h" -#include "lwip/timeouts.h" -#include "lwip/netif.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_TCPIP_CORE_LOCKING -/** The global semaphore to lock the stack. */ -extern sys_mutex_t lock_tcpip_core; -#if !defined LOCK_TCPIP_CORE || defined __DOXYGEN__ -/** Lock lwIP core mutex (needs @ref LWIP_TCPIP_CORE_LOCKING 1) */ -#define LOCK_TCPIP_CORE() sys_mutex_lock(&lock_tcpip_core) -/** Unlock lwIP core mutex (needs @ref LWIP_TCPIP_CORE_LOCKING 1) */ -#define UNLOCK_TCPIP_CORE() sys_mutex_unlock(&lock_tcpip_core) -#endif /* LOCK_TCPIP_CORE */ -#else /* LWIP_TCPIP_CORE_LOCKING */ -#define LOCK_TCPIP_CORE() -#define UNLOCK_TCPIP_CORE() -#endif /* LWIP_TCPIP_CORE_LOCKING */ - -struct pbuf; -struct netif; - -/** Function prototype for the init_done function passed to tcpip_init */ -typedef void (*tcpip_init_done_fn)(void *arg); -/** Function prototype for functions passed to tcpip_callback() */ -typedef void (*tcpip_callback_fn)(void *ctx); - -/* Forward declarations */ -struct tcpip_callback_msg; - -void tcpip_init(tcpip_init_done_fn tcpip_init_done, void *arg); - -err_t tcpip_inpkt(struct pbuf *p, struct netif *inp, netif_input_fn input_fn); -err_t tcpip_input(struct pbuf *p, struct netif *inp); - -err_t tcpip_try_callback(tcpip_callback_fn function, void *ctx); -err_t tcpip_callback(tcpip_callback_fn function, void *ctx); -/** @ingroup lwip_os - * @deprecated use tcpip_try_callback() or tcpip_callback() instead - */ -#define tcpip_callback_with_block(function, ctx, block) ((block != 0)? tcpip_callback(function, ctx) : tcpip_try_callback(function, ctx)) - -struct tcpip_callback_msg* tcpip_callbackmsg_new(tcpip_callback_fn function, void *ctx); -void tcpip_callbackmsg_delete(struct tcpip_callback_msg* msg); -err_t tcpip_callbackmsg_trycallback(struct tcpip_callback_msg* msg); -err_t tcpip_callbackmsg_trycallback_fromisr(struct tcpip_callback_msg* msg); - -/* free pbufs or heap memory from another context without blocking */ -err_t pbuf_free_callback(struct pbuf *p); -err_t mem_free_callback(void *m); - -#if LWIP_TCPIP_TIMEOUT && LWIP_TIMERS -err_t tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg); -err_t tcpip_untimeout(sys_timeout_handler h, void *arg); -#endif /* LWIP_TCPIP_TIMEOUT && LWIP_TIMERS */ - -#ifdef TCPIP_THREAD_TEST -int tcpip_thread_poll_one(void); -#endif - -#ifdef __cplusplus -} -#endif - -#endif /* !NO_SYS */ - -#endif /* LWIP_HDR_TCPIP_H */ diff --git a/core/c/include/lwip/timeouts.h b/core/c/include/lwip/timeouts.h deleted file mode 100755 index 3ab3c0e..0000000 --- a/core/c/include/lwip/timeouts.h +++ /dev/null @@ -1,128 +0,0 @@ -/** - * @file - * Timer implementations - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_TIMEOUTS_H -#define LWIP_HDR_TIMEOUTS_H - -#include "lwip/opt.h" -#include "lwip/err.h" -#if !NO_SYS -#include "lwip/sys.h" -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -#ifndef LWIP_DEBUG_TIMERNAMES -#ifdef LWIP_DEBUG -#define LWIP_DEBUG_TIMERNAMES SYS_DEBUG -#else /* LWIP_DEBUG */ -#define LWIP_DEBUG_TIMERNAMES 0 -#endif /* LWIP_DEBUG*/ -#endif - -/** Returned by sys_timeouts_sleeptime() to indicate there is no timer, so we - * can sleep forever. - */ -#define SYS_TIMEOUTS_SLEEPTIME_INFINITE 0xFFFFFFFF - -/** Function prototype for a stack-internal timer function that has to be - * called at a defined interval */ -typedef void (* lwip_cyclic_timer_handler)(void); - -/** This struct contains information about a stack-internal timer function - that has to be called at a defined interval */ -struct lwip_cyclic_timer { - u32_t interval_ms; - lwip_cyclic_timer_handler handler; -#if LWIP_DEBUG_TIMERNAMES - const char* handler_name; -#endif /* LWIP_DEBUG_TIMERNAMES */ -}; - -/** This array contains all stack-internal cyclic timers. To get the number of - * timers, use lwip_num_cyclic_timers */ -extern const struct lwip_cyclic_timer lwip_cyclic_timers[]; -/** Array size of lwip_cyclic_timers[] */ -extern const int lwip_num_cyclic_timers; - -#if LWIP_TIMERS - -/** Function prototype for a timeout callback function. Register such a function - * using sys_timeout(). - * - * @param arg Additional argument to pass to the function - set up by sys_timeout() - */ -typedef void (* sys_timeout_handler)(void *arg); - -struct sys_timeo { - struct sys_timeo *next; - u32_t time; - sys_timeout_handler h; - void *arg; -#if LWIP_DEBUG_TIMERNAMES - const char* handler_name; -#endif /* LWIP_DEBUG_TIMERNAMES */ -}; - -void sys_timeouts_init(void); - -#if LWIP_DEBUG_TIMERNAMES -void sys_timeout_debug(u32_t msecs, sys_timeout_handler handler, void *arg, const char* handler_name); -#define sys_timeout(msecs, handler, arg) sys_timeout_debug(msecs, handler, arg, #handler) -#else /* LWIP_DEBUG_TIMERNAMES */ -void sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg); -#endif /* LWIP_DEBUG_TIMERNAMES */ - -void sys_untimeout(sys_timeout_handler handler, void *arg); -void sys_restart_timeouts(void); -void sys_check_timeouts(void); -u32_t sys_timeouts_sleeptime(void); - -#if LWIP_TESTMODE -struct sys_timeo** sys_timeouts_get_next_timeout(void); -void lwip_cyclic_timer(void *arg); -#endif - -#endif /* LWIP_TIMERS */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_TIMEOUTS_H */ diff --git a/core/c/include/lwip/udp.h b/core/c/include/lwip/udp.h deleted file mode 100755 index 759cf16..0000000 --- a/core/c/include/lwip/udp.h +++ /dev/null @@ -1,232 +0,0 @@ -/** - * @file - * UDP API (to be used from TCPIP thread)\n - * See also @ref udp_raw - */ - -/* - * Copyright (c) 2001-2004 Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_UDP_H -#define LWIP_HDR_UDP_H - -#include "lwip/opt.h" - -#if LWIP_UDP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/pbuf.h" -#include "lwip/netif.h" -#include "lwip/ip_addr.h" -#include "lwip/ip.h" -#include "lwip/ip6_addr.h" -#include "lwip/prot/udp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define UDP_FLAGS_NOCHKSUM 0x01U -#define UDP_FLAGS_UDPLITE 0x02U -#define UDP_FLAGS_CONNECTED 0x04U -#define UDP_FLAGS_MULTICAST_LOOP 0x08U - -struct udp_pcb; - -/** Function prototype for udp pcb receive callback functions - * addr and port are in same byte order as in the pcb - * The callback is responsible for freeing the pbuf - * if it's not used any more. - * - * ATTENTION: Be aware that 'addr' might point into the pbuf 'p' so freeing this pbuf - * can make 'addr' invalid, too. - * - * @param arg user supplied argument (udp_pcb.recv_arg) - * @param pcb the udp_pcb which received data - * @param p the packet buffer that was received - * @param addr the remote IP address from which the packet was received - * @param port the remote port from which the packet was received - */ -#if TUN2SOCKS -typedef void (*udp_recv_fn)(void *arg, struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *addr, u16_t port, const ip_addr_t *dest_addr, u16_t dest_port); -#else -typedef void (*udp_recv_fn)(void *arg, struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *addr, u16_t port); -#endif /* TUN2SOCKS */ - -/** the UDP protocol control block */ -struct udp_pcb { -/** Common members of all PCB types */ - IP_PCB; - -/* Protocol specific PCB members */ - - struct udp_pcb *next; - - u8_t flags; - /** ports are in host byte order */ - u16_t local_port, remote_port; - -#if LWIP_MULTICAST_TX_OPTIONS -#if LWIP_IPV4 - /** outgoing network interface for multicast packets, by IPv4 address (if not 'any') */ - ip4_addr_t mcast_ip4; -#endif /* LWIP_IPV4 */ - /** outgoing network interface for multicast packets, by interface index (if nonzero) */ - u8_t mcast_ifindex; - /** TTL for outgoing multicast packets */ - u8_t mcast_ttl; -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - -#if LWIP_UDPLITE - /** used for UDP_LITE only */ - u16_t chksum_len_rx, chksum_len_tx; -#endif /* LWIP_UDPLITE */ - - /** receive callback function */ - udp_recv_fn recv; - /** user-supplied argument for the recv callback */ - void *recv_arg; -}; -/* udp_pcbs export for external reference (e.g. SNMP agent) */ -extern struct udp_pcb *udp_pcbs; - -/* The following functions is the application layer interface to the - UDP code. */ -struct udp_pcb * udp_new (void); -struct udp_pcb * udp_new_ip_type(u8_t type); -void udp_remove (struct udp_pcb *pcb); -err_t udp_bind (struct udp_pcb *pcb, const ip_addr_t *ipaddr, - u16_t port); -void udp_bind_netif (struct udp_pcb *pcb, const struct netif* netif); -err_t udp_connect (struct udp_pcb *pcb, const ip_addr_t *ipaddr, - u16_t port); -void udp_disconnect (struct udp_pcb *pcb); -void udp_recv (struct udp_pcb *pcb, udp_recv_fn recv, - void *recv_arg); -#if TUN2SOCKS -err_t udp_sendto_if (struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, - struct netif *netif, - const ip_addr_t *src_ip, u16_t src_port); -err_t udp_sendto_if_src(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, - struct netif *netif, - const ip_addr_t *src_ip, u16_t src_port); -err_t udp_sendto (struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, - const ip_addr_t *src_ip, u16_t src_port); -#else -err_t udp_sendto_if (struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, - struct netif *netif); -err_t udp_sendto_if_src(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, - struct netif *netif, const ip_addr_t *src_ip); -err_t udp_sendto (struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port); -#endif /* TUN2SOCKS */ -err_t udp_send (struct udp_pcb *pcb, struct pbuf *p); - -#if LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP -#if TUN2SOCKS -err_t udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, - struct netif *netif, u8_t have_chksum, - u16_t chksum, - const ip_addr_t *src_ip, u16_t src_port); -err_t udp_sendto_chksum(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, - u8_t have_chksum, u16_t chksum, - const ip_addr_t *src_ip, u16_t src_port); -#else -err_t udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, - struct netif *netif, u8_t have_chksum, - u16_t chksum); -err_t udp_sendto_chksum(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, - u8_t have_chksum, u16_t chksum); -#endif /* TUN2SOCKS */ -err_t udp_send_chksum(struct udp_pcb *pcb, struct pbuf *p, - u8_t have_chksum, u16_t chksum); -#if TUN2SOCKS -err_t udp_sendto_if_src_chksum(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, struct netif *netif, - u8_t have_chksum, u16_t chksum, const ip_addr_t *src_ip, u16_t src_port); -#else -err_t udp_sendto_if_src_chksum(struct udp_pcb *pcb, struct pbuf *p, - const ip_addr_t *dst_ip, u16_t dst_port, struct netif *netif, - u8_t have_chksum, u16_t chksum, const ip_addr_t *src_ip); -#endif /* TUN2SOCKS */ -#endif /* LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_UDP */ - -#define udp_flags(pcb) ((pcb)->flags) -#define udp_setflags(pcb, f) ((pcb)->flags = (f)) - -#define udp_set_flags(pcb, set_flags) do { (pcb)->flags = (u8_t)((pcb)->flags | (set_flags)); } while(0) -#define udp_clear_flags(pcb, clr_flags) do { (pcb)->flags = (u8_t)((pcb)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0) -#define udp_is_flag_set(pcb, flag) (((pcb)->flags & (flag)) != 0) - -/* The following functions are the lower layer interface to UDP. */ -void udp_input (struct pbuf *p, struct netif *inp); - -void udp_init (void); - -/* for compatibility with older implementation */ -#define udp_new_ip6() udp_new_ip_type(IPADDR_TYPE_V6) - -#if LWIP_MULTICAST_TX_OPTIONS -#if LWIP_IPV4 -#define udp_set_multicast_netif_addr(pcb, ip4addr) ip4_addr_copy((pcb)->mcast_ip4, *(ip4addr)) -#define udp_get_multicast_netif_addr(pcb) (&(pcb)->mcast_ip4) -#endif /* LWIP_IPV4 */ -#define udp_set_multicast_netif_index(pcb, idx) ((pcb)->mcast_ifindex = (idx)) -#define udp_get_multicast_netif_index(pcb) ((pcb)->mcast_ifindex) -#define udp_set_multicast_ttl(pcb, value) ((pcb)->mcast_ttl = (value)) -#define udp_get_multicast_ttl(pcb) ((pcb)->mcast_ttl) -#endif /* LWIP_MULTICAST_TX_OPTIONS */ - -#if UDP_DEBUG -void udp_debug_print(struct udp_hdr *udphdr); -#else -#define udp_debug_print(udphdr) -#endif - -void udp_netif_ip_addr_changed(const ip_addr_t* old_addr, const ip_addr_t* new_addr); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_UDP */ - -#endif /* LWIP_HDR_UDP_H */ diff --git a/core/c/include/netif/bridgeif.h b/core/c/include/netif/bridgeif.h deleted file mode 100755 index 927c619..0000000 --- a/core/c/include/netif/bridgeif.h +++ /dev/null @@ -1,127 +0,0 @@ -/** - * @file - * lwIP netif implementing an IEEE 802.1D MAC Bridge - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_NETIF_BRIDGEIF_H -#define LWIP_HDR_NETIF_BRIDGEIF_H - -#include "netif/bridgeif_opts.h" - -#include "lwip/err.h" -#include "lwip/prot/ethernet.h" - -#ifdef __cplusplus -extern "C" { -#endif - -struct netif; - -#if (BRIDGEIF_MAX_PORTS < 0) || (BRIDGEIF_MAX_PORTS >= 64) -#error BRIDGEIF_MAX_PORTS must be [1..63] -#elif BRIDGEIF_MAX_PORTS < 8 -typedef u8_t bridgeif_portmask_t; -#elif BRIDGEIF_MAX_PORTS < 16 -typedef u16_t bridgeif_portmask_t; -#elif BRIDGEIF_MAX_PORTS < 32 -typedef u32_t bridgeif_portmask_t; -#elif BRIDGEIF_MAX_PORTS < 64 -typedef u64_t bridgeif_portmask_t; -#endif - -#define BR_FLOOD ((bridgeif_portmask_t)-1) - -/** @ingroup bridgeif - * Initialisation data for @ref bridgeif_init. - * An instance of this type must be passed as parameter 'state' to @ref netif_add - * when the bridge is added. - */ -typedef struct bridgeif_initdata_s { - /** MAC address of the bridge (cannot use the netif's addresses) */ - struct eth_addr ethaddr; - /** Maximum number of ports in the bridge (ports are stored in an array, this - influences memory allocated for netif->state of the bridge netif). */ - u8_t max_ports; - /** Maximum number of dynamic/learning entries in the bridge's forwarding database. - In the default implementation, this controls memory consumption only. */ - u16_t max_fdb_dynamic_entries; - /** Maximum number of static forwarding entries. Influences memory consumption! */ - u16_t max_fdb_static_entries; -} bridgeif_initdata_t; - -/** @ingroup bridgeif - * Use this for constant initialization of a bridgeif_initdat_t - * (ethaddr must be passed as ETH_ADDR()) - */ -#define BRIDGEIF_INITDATA1(max_ports, max_fdb_dynamic_entries, max_fdb_static_entries, ethaddr) {ethaddr, max_ports, max_fdb_dynamic_entries, max_fdb_static_entries} -/** @ingroup bridgeif - * Use this for constant initialization of a bridgeif_initdat_t - * (each byte of ethaddr must be passed) - */ -#define BRIDGEIF_INITDATA2(max_ports, max_fdb_dynamic_entries, max_fdb_static_entries, e0, e1, e2, e3, e4, e5) {{e0, e1, e2, e3, e4, e5}, max_ports, max_fdb_dynamic_entries, max_fdb_static_entries} - -err_t bridgeif_init(struct netif *netif); -err_t bridgeif_add_port(struct netif *bridgeif, struct netif *portif); -err_t bridgeif_fdb_add(struct netif *bridgeif, const struct eth_addr *addr, bridgeif_portmask_t ports); -err_t bridgeif_fdb_remove(struct netif *bridgeif, const struct eth_addr *addr); - -/* FDB interface, can be replaced by own implementation */ -void bridgeif_fdb_update_src(void *fdb_ptr, struct eth_addr *src_addr, u8_t port_idx); -bridgeif_portmask_t bridgeif_fdb_get_dst_ports(void *fdb_ptr, struct eth_addr *dst_addr); -void* bridgeif_fdb_init(u16_t max_fdb_entries); - -#if BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT -#ifndef BRIDGEIF_DECL_PROTECT -/* define bridgeif protection to sys_arch_protect... */ -#include "lwip/sys.h" -#define BRIDGEIF_DECL_PROTECT(lev) SYS_ARCH_DECL_PROTECT(lev) -#define BRIDGEIF_READ_PROTECT(lev) SYS_ARCH_PROTECT(lev) -#define BRIDGEIF_READ_UNPROTECT(lev) SYS_ARCH_UNPROTECT(lev) -#define BRIDGEIF_WRITE_PROTECT(lev) -#define BRIDGEIF_WRITE_UNPROTECT(lev) -#endif -#else /* BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT */ -#include "lwip/tcpip.h" -#define BRIDGEIF_DECL_PROTECT(lev) -#define BRIDGEIF_READ_PROTECT(lev) -#define BRIDGEIF_READ_UNPROTECT(lev) -#define BRIDGEIF_WRITE_PROTECT(lev) -#define BRIDGEIF_WRITE_UNPROTECT(lev) -#endif /* BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_NETIF_BRIDGEIF_H */ diff --git a/core/c/include/netif/bridgeif_opts.h b/core/c/include/netif/bridgeif_opts.h deleted file mode 100755 index 5866410..0000000 --- a/core/c/include/netif/bridgeif_opts.h +++ /dev/null @@ -1,90 +0,0 @@ -/** - * @file - * lwIP netif implementing an IEEE 802.1D MAC Bridge - */ - -/* - * Copyright (c) 2017 Simon Goldschmidt. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ - -#ifndef LWIP_HDR_NETIF_BRIDGEIF_OPTS_H -#define LWIP_HDR_NETIF_BRIDGEIF_OPTS_H - -#include "lwip/opt.h" - -/** - * @defgroup bridgeif_opts Options - * @ingroup bridgeif - * @{ - */ - -/** BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT==1: set port netif's 'input' function - * to call directly into bridgeif code and on top of that, directly call into - * the selected forwarding port's 'linkoutput' function. - * This means that the bridgeif input/output path is protected from concurrent access - * but as well, *all* bridge port netif's drivers must correctly handle concurrent access! - * == 0: get into tcpip_thread for every input packet (no multithreading) - * ATTENTION: as ==0 relies on tcpip.h, the default depends on NO_SYS setting - */ -#ifndef BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT -#define BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT NO_SYS -#endif - -/** BRIDGEIF_MAX_PORTS: this is used to create a typedef used for forwarding - * bit-fields: the number of bits required is this + 1 (for the internal/cpu port) - * (63 is the maximum, resulting in an u64_t for the bit mask) - * ATTENTION: this controls the maximum number of the implementation only! - * The max. number of ports per bridge must still be passed via netif_add parameter! - */ -#ifndef BRIDGEIF_MAX_PORTS -#define BRIDGEIF_MAX_PORTS 7 -#endif - -/** BRIDGEIF_DEBUG: Enable generic debugging in bridgeif.c. */ -#ifndef BRIDGEIF_DEBUG -#define BRIDGEIF_DEBUG LWIP_DBG_OFF -#endif - -/** BRIDGEIF_DEBUG: Enable FDB debugging in bridgeif.c. */ -#ifndef BRIDGEIF_FDB_DEBUG -#define BRIDGEIF_FDB_DEBUG LWIP_DBG_OFF -#endif - -/** BRIDGEIF_DEBUG: Enable forwarding debugging in bridgeif.c. */ -#ifndef BRIDGEIF_FW_DEBUG -#define BRIDGEIF_FW_DEBUG LWIP_DBG_OFF -#endif - -/** - * @} - */ - -#endif /* LWIP_HDR_NETIF_BRIDGEIF_OPTS_H */ diff --git a/core/c/include/netif/etharp.h b/core/c/include/netif/etharp.h deleted file mode 100755 index c00de04..0000000 --- a/core/c/include/netif/etharp.h +++ /dev/null @@ -1,3 +0,0 @@ -/* ARP has been moved to core/ipv4, provide this #include for compatibility only */ -#include "lwip/etharp.h" -#include "netif/ethernet.h" diff --git a/core/c/include/netif/ethernet.h b/core/c/include/netif/ethernet.h deleted file mode 100755 index 6e94e16..0000000 --- a/core/c/include/netif/ethernet.h +++ /dev/null @@ -1,77 +0,0 @@ -/** - * @file - * Ethernet input function - handles INCOMING ethernet level traffic - * To be used in most low-level netif implementations - */ - -/* - * Copyright (c) 2001-2003 Swedish Institute of Computer Science. - * Copyright (c) 2003-2004 Leon Woestenberg - * Copyright (c) 2003-2004 Axon Digital Design B.V., The Netherlands. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ - -#ifndef LWIP_HDR_NETIF_ETHERNET_H -#define LWIP_HDR_NETIF_ETHERNET_H - -#include "lwip/opt.h" - -#include "lwip/pbuf.h" -#include "lwip/netif.h" -#include "lwip/prot/ethernet.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#if LWIP_ARP || LWIP_ETHERNET - -/** Define this to 1 and define LWIP_ARP_FILTER_NETIF_FN(pbuf, netif, type) - * to a filter function that returns the correct netif when using multiple - * netifs on one hardware interface where the netif's low-level receive - * routine cannot decide for the correct netif (e.g. when mapping multiple - * IP addresses to one hardware interface). - */ -#ifndef LWIP_ARP_FILTER_NETIF -#define LWIP_ARP_FILTER_NETIF 0 -#endif - -err_t ethernet_input(struct pbuf *p, struct netif *netif); -err_t ethernet_output(struct netif* netif, struct pbuf* p, const struct eth_addr* src, const struct eth_addr* dst, u16_t eth_type); - -extern const struct eth_addr ethbroadcast, ethzero; - -#endif /* LWIP_ARP || LWIP_ETHERNET */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_NETIF_ETHERNET_H */ diff --git a/core/c/include/netif/ieee802154.h b/core/c/include/netif/ieee802154.h deleted file mode 100755 index 0a11a2b..0000000 --- a/core/c/include/netif/ieee802154.h +++ /dev/null @@ -1,112 +0,0 @@ -/** - * @file - * Definitions for IEEE 802.15.4 MAC frames - */ - -/* - * Copyright (c) 2018 Simon Goldschmidt. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ -#ifndef LWIP_HDR_NETIF_IEEE802154_H -#define LWIP_HDR_NETIF_IEEE802154_H - -#include "lwip/opt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -/** General MAC frame format - * This shows the full featured header, mainly for documentation. - * Some fields are omitted or shortened to achieve frame compression. - */ -struct ieee_802154_hdr { - /** See IEEE_802154_FC_* defines */ - PACK_STRUCT_FIELD(u16_t frame_control); - /** Sequence number is omitted if IEEE_802154_FC_SEQNO_SUPPR is set in frame_control */ - PACK_STRUCT_FLD_8(u8_t sequence_number); - /** Destination PAN ID is omitted if Destination Addressing Mode is 0 */ - PACK_STRUCT_FIELD(u16_t destination_pan_id); - /** Destination Address is omitted if Destination Addressing Mode is 0 */ - PACK_STRUCT_FLD_8(u8_t destination_address[8]); - /** Source PAN ID is omitted if Source Addressing Mode is 0 - or if IEEE_802154_FC_PANID_COMPR is set in frame control*/ - PACK_STRUCT_FIELD(u16_t source_pan_id); - /** Source Address is omitted if Source Addressing Mode is 0 */ - PACK_STRUCT_FLD_8(u8_t source_address[8]); - /* The rest is variable */ -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -/* Addressing modes (2 bits) */ -#define IEEE_802154_ADDR_MODE_NO_ADDR 0x00 /* PAN ID and address fields are not present */ -#define IEEE_802154_ADDR_MODE_RESERVED 0x01 /* Reserved */ -#define IEEE_802154_ADDR_MODE_SHORT 0x02 /* Address field contains a short address (16 bit) */ -#define IEEE_802154_ADDR_MODE_EXT 0x03 /* Address field contains an extended address (64 bit) */ - -/* IEEE 802.15.4 Frame Control definitions (2 bytes; see IEEE 802.15.4-2015 ch. 7.2.1) */ -#define IEEE_802154_FC_FT_MASK 0x0007 /* bits 0..2: Frame Type */ -#define IEEE_802154_FC_FT_BEACON 0x00 -#define IEEE_802154_FC_FT_DATA 0x01 -#define IEEE_802154_FC_FT_ACK 0x02 -#define IEEE_802154_FC_FT_MAC_CMD 0x03 -#define IEEE_802154_FC_FT_RESERVED 0x04 -#define IEEE_802154_FC_FT_MULTIPURPOSE 0x05 -#define IEEE_802154_FC_FT_FRAG 0x06 -#define IEEE_802154_FC_FT_EXT 0x07 -#define IEEE_802154_FC_SEC_EN 0x0008 /* bit 3: Security Enabled */ -#define IEEE_802154_FC_FRAME_PEND 0x0010 /* bit 4: Frame Pending */ -#define IEEE_802154_FC_ACK_REQ 0x0020 /* bit 5: AR (ACK required) */ -#define IEEE_802154_FC_PANID_COMPR 0x0040 /* bit 6: PAN ID Compression (src and dst are equal, src PAN ID omitted) */ -#define IEEE_802154_FC_RESERVED 0x0080 -#define IEEE_802154_FC_SEQNO_SUPPR 0x0100 /* bit 8: Sequence Number Suppression */ -#define IEEE_802154_FC_IE_PRESENT 0x0200 /* bit 9: IE Present */ -#define IEEE_802154_FC_DST_ADDR_MODE_MASK 0x0c00 /* bits 10..11: Destination Addressing Mode */ -#define IEEE_802154_FC_DST_ADDR_MODE_NO_ADDR (IEEE_802154_ADDR_MODE_NO_ADDR << 10) -#define IEEE_802154_FC_DST_ADDR_MODE_SHORT (IEEE_802154_ADDR_MODE_SHORT << 10) -#define IEEE_802154_FC_DST_ADDR_MODE_EXT (IEEE_802154_ADDR_MODE_EXT << 10) -#define IEEE_802154_FC_FRAME_VERSION_MASK 0x3000 /* bits 12..13: Frame Version */ -#define IEEE_802154_FC_FRAME_VERSION_GET(x) (((x) & IEEE_802154_FC_FRAME_VERSION_MASK) >> 12) -#define IEEE_802154_FC_SRC_ADDR_MODE_MASK 0xc000 /* bits 14..15: Source Addressing Mode */ -#define IEEE_802154_FC_SRC_ADDR_MODE_SHORT (IEEE_802154_ADDR_MODE_SHORT << 14) -#define IEEE_802154_FC_SRC_ADDR_MODE_EXT (IEEE_802154_ADDR_MODE_EXT << 14) - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_NETIF_IEEE802154_H */ diff --git a/core/c/include/netif/lowpan6.h b/core/c/include/netif/lowpan6.h deleted file mode 100755 index b84b838..0000000 --- a/core/c/include/netif/lowpan6.h +++ /dev/null @@ -1,89 +0,0 @@ -/** - * @file - * - * 6LowPAN output for IPv6. Uses ND tables for link-layer addressing. Fragments packets to 6LowPAN units. - */ - -/* - * Copyright (c) 2015 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#ifndef LWIP_HDR_LOWPAN6_H -#define LWIP_HDR_LOWPAN6_H - -#include "netif/lowpan6_opts.h" - -#if LWIP_IPV6 - -#include "netif/lowpan6_common.h" -#include "lwip/pbuf.h" -#include "lwip/ip.h" -#include "lwip/ip_addr.h" -#include "lwip/netif.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** 1 second period for reassembly */ -#define LOWPAN6_TMR_INTERVAL 1000 - -void lowpan6_tmr(void); - -err_t lowpan6_set_context(u8_t idx, const ip6_addr_t * context); -err_t lowpan6_set_short_addr(u8_t addr_high, u8_t addr_low); - -#if LWIP_IPV4 -err_t lowpan4_output(struct netif *netif, struct pbuf *q, const ip4_addr_t *ipaddr); -#endif /* LWIP_IPV4 */ -err_t lowpan6_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr); -err_t lowpan6_input(struct pbuf * p, struct netif *netif); -err_t lowpan6_if_init(struct netif *netif); - -/* pan_id in network byte order. */ -err_t lowpan6_set_pan_id(u16_t pan_id); - -u16_t lowpan6_calc_crc(const void *buf, u16_t len); - -#if !NO_SYS -err_t tcpip_6lowpan_input(struct pbuf *p, struct netif *inp); -#endif /* !NO_SYS */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6 */ - -#endif /* LWIP_HDR_LOWPAN6_H */ diff --git a/core/c/include/netif/lowpan6_ble.h b/core/c/include/netif/lowpan6_ble.h deleted file mode 100755 index 46a5f2e..0000000 --- a/core/c/include/netif/lowpan6_ble.h +++ /dev/null @@ -1,78 +0,0 @@ -/** - * @file - * 6LowPAN over BLE for IPv6 (RFC7668). - */ - -/* - * Copyright (c) 2017 Benjamin Aigner - * Copyright (c) 2015 Inico Technologies Ltd. , Author: Ivan Delamer - * - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * Author: Benjamin Aigner - * - * Based on the original 6lowpan implementation of lwIP ( @see 6lowpan.c) - */ - -#ifndef LWIP_HDR_LOWPAN6_BLE_H -#define LWIP_HDR_LOWPAN6_BLE_H - -#include "netif/lowpan6_opts.h" - -#if LWIP_IPV6 /* don't build if not configured for use in lwipopts.h */ - -#include "netif/lowpan6_common.h" -#include "lwip/pbuf.h" -#include "lwip/ip.h" -#include "lwip/ip_addr.h" -#include "lwip/netif.h" - -#ifdef __cplusplus -extern "C" { -#endif - -err_t rfc7668_output(struct netif *netif, struct pbuf *q, const ip6_addr_t *ip6addr); -err_t rfc7668_input(struct pbuf * p, struct netif *netif); -err_t rfc7668_set_local_addr_eui64(struct netif *netif, const u8_t *local_addr, size_t local_addr_len); -err_t rfc7668_set_local_addr_mac48(struct netif *netif, const u8_t *local_addr, size_t local_addr_len, int is_public_addr); -err_t rfc7668_set_peer_addr_eui64(struct netif *netif, const u8_t *peer_addr, size_t peer_addr_len); -err_t rfc7668_set_peer_addr_mac48(struct netif *netif, const u8_t *peer_addr, size_t peer_addr_len, int is_public_addr); -err_t rfc7668_set_context(u8_t index, const ip6_addr_t * context); -err_t rfc7668_if_init(struct netif *netif); - -#if !NO_SYS -err_t tcpip_rfc7668_input(struct pbuf *p, struct netif *inp); -#endif - -void ble_addr_to_eui64(uint8_t *dst, const uint8_t *src, int public_addr); -void eui64_to_ble_addr(uint8_t *dst, const uint8_t *src); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6 */ - -#endif /* LWIP_HDR_LOWPAN6_BLE_H */ diff --git a/core/c/include/netif/lowpan6_common.h b/core/c/include/netif/lowpan6_common.h deleted file mode 100755 index d80eef9..0000000 --- a/core/c/include/netif/lowpan6_common.h +++ /dev/null @@ -1,82 +0,0 @@ -/** - * @file - * - * Common 6LowPAN routines for IPv6. Uses ND tables for link-layer addressing. Fragments packets to 6LowPAN units. - */ - -/* - * Copyright (c) 2015 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#ifndef LWIP_HDR_LOWPAN6_COMMON_H -#define LWIP_HDR_LOWPAN6_COMMON_H - -#include "netif/lowpan6_opts.h" - -#if LWIP_IPV6 /* don't build if IPv6 is disabled in lwipopts.h */ - -#include "lwip/pbuf.h" -#include "lwip/ip.h" -#include "lwip/ip6_addr.h" -#include "lwip/netif.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/** Helper define for a link layer address, which can be encoded as 0, 2 or 8 bytes */ -struct lowpan6_link_addr { - /* encoded length of the address */ - u8_t addr_len; - /* address bytes */ - u8_t addr[8]; -}; - -s8_t lowpan6_get_address_mode(const ip6_addr_t *ip6addr, const struct lowpan6_link_addr *mac_addr); - -#if LWIP_6LOWPAN_IPHC -err_t lowpan6_compress_headers(struct netif *netif, u8_t *inbuf, size_t inbuf_size, u8_t *outbuf, size_t outbuf_size, - u8_t *lowpan6_header_len_out, u8_t *hidden_header_len_out, ip6_addr_t *lowpan6_contexts, - const struct lowpan6_link_addr *src, const struct lowpan6_link_addr *dst); -struct pbuf *lowpan6_decompress(struct pbuf *p, u16_t datagram_size, ip6_addr_t *lowpan6_contexts, - struct lowpan6_link_addr *src, struct lowpan6_link_addr *dest); -#endif /* LWIP_6LOWPAN_IPHC */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6 */ - -#endif /* LWIP_HDR_LOWPAN6_COMMON_H */ diff --git a/core/c/include/netif/lowpan6_opts.h b/core/c/include/netif/lowpan6_opts.h deleted file mode 100755 index 5303c15..0000000 --- a/core/c/include/netif/lowpan6_opts.h +++ /dev/null @@ -1,122 +0,0 @@ -/** - * @file - * 6LowPAN options list - */ - -/* - * Copyright (c) 2015 Inico Technologies Ltd. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Ivan Delamer - * - * - * Please coordinate changes and requests with Ivan Delamer - * - */ - -#ifndef LWIP_HDR_LOWPAN6_OPTS_H -#define LWIP_HDR_LOWPAN6_OPTS_H - -#include "lwip/opt.h" - -/** LWIP_6LOWPAN_NUM_CONTEXTS: define the number of compression - * contexts per netif type - */ -#ifndef LWIP_6LOWPAN_NUM_CONTEXTS -#define LWIP_6LOWPAN_NUM_CONTEXTS 10 -#endif - -/** LWIP_6LOWPAN_INFER_SHORT_ADDRESS: set this to 0 to disable creating - * short addresses for matching addresses (debug only) - */ -#ifndef LWIP_6LOWPAN_INFER_SHORT_ADDRESS -#define LWIP_6LOWPAN_INFER_SHORT_ADDRESS 1 -#endif - -/** LWIP_6LOWPAN_IPHC: set this to 0 to disable IP header compression as per - * RFC 6282 (which is mandatory for BLE) - */ -#ifndef LWIP_6LOWPAN_IPHC -#define LWIP_6LOWPAN_IPHC 1 -#endif - -/** Set this to 1 if your IEEE 802.15.4 interface can calculate and check the - * CRC in hardware. This means TX packets get 2 zero bytes added on transmission - * which are to be filled with the CRC. - */ -#ifndef LWIP_6LOWPAN_802154_HW_CRC -#define LWIP_6LOWPAN_802154_HW_CRC 0 -#endif - -/** If LWIP_6LOWPAN_802154_HW_CRC==0, this can override the default slow - * implementation of the CRC used for 6LoWPAN over IEEE 802.15.4 (which uses - * a shift register). - */ -#ifndef LWIP_6LOWPAN_CALC_CRC -#define LWIP_6LOWPAN_CALC_CRC(buf, len) lowpan6_calc_crc(buf, len) -#endif - -/** Debug level for 6LoWPAN in general */ -#ifndef LWIP_LOWPAN6_DEBUG -#define LWIP_LOWPAN6_DEBUG LWIP_DBG_OFF -#endif - -/** Debug level for 6LoWPAN over IEEE 802.15.4 */ -#ifndef LWIP_LOWPAN6_802154_DEBUG -#define LWIP_LOWPAN6_802154_DEBUG LWIP_DBG_OFF -#endif - -/** LWIP_LOWPAN6_IP_COMPRESSED_DEBUG: enable compressed IP frame - * output debugging - */ -#ifndef LWIP_LOWPAN6_IP_COMPRESSED_DEBUG -#define LWIP_LOWPAN6_IP_COMPRESSED_DEBUG LWIP_DBG_OFF -#endif - -/** LWIP_LOWPAN6_DECOMPRESSION_DEBUG: enable decompression debug output - */ -#ifndef LWIP_LOWPAN6_DECOMPRESSION_DEBUG -#define LWIP_LOWPAN6_DECOMPRESSION_DEBUG LWIP_DBG_OFF -#endif - -/** LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG: enable decompressed IP frame - * output debugging */ -#ifndef LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG -#define LWIP_RFC7668_IP_UNCOMPRESSED_DEBUG LWIP_DBG_OFF -#endif - -/** LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS: - * Currently, the linux kernel driver for 6lowpan sets/clears a bit in - * the address, depending on the BD address (either public or not). - * Might not be RFC7668 conform, so you may select to do that (=1) or - * not (=0) */ -#ifndef LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS -#define LWIP_RFC7668_LINUX_WORKAROUND_PUBLIC_ADDRESS 1 -#endif - - -#endif /* LWIP_HDR_LOWPAN6_OPTS_H */ diff --git a/core/c/include/netif/ppp/ccp.h b/core/c/include/netif/ppp/ccp.h deleted file mode 100755 index c35336f..0000000 --- a/core/c/include/netif/ppp/ccp.h +++ /dev/null @@ -1,164 +0,0 @@ -/* - * ccp.h - Definitions for PPP Compression Control Protocol. - * - * Copyright (c) 1994-2002 Paul Mackerras. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. The name(s) of the authors of this software must not be used to - * endorse or promote products derived from this software without - * prior written permission. - * - * 3. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Paul Mackerras - * ". - * - * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * $Id: ccp.h,v 1.12 2004/11/04 10:02:26 paulus Exp $ - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && CCP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef CCP_H -#define CCP_H - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * CCP codes. - */ - -#define CCP_CONFREQ 1 -#define CCP_CONFACK 2 -#define CCP_TERMREQ 5 -#define CCP_TERMACK 6 -#define CCP_RESETREQ 14 -#define CCP_RESETACK 15 - -/* - * Max # bytes for a CCP option - */ - -#define CCP_MAX_OPTION_LENGTH 32 - -/* - * Parts of a CCP packet. - */ - -#define CCP_CODE(dp) ((dp)[0]) -#define CCP_ID(dp) ((dp)[1]) -#define CCP_LENGTH(dp) (((dp)[2] << 8) + (dp)[3]) -#define CCP_HDRLEN 4 - -#define CCP_OPT_CODE(dp) ((dp)[0]) -#define CCP_OPT_LENGTH(dp) ((dp)[1]) -#define CCP_OPT_MINLEN 2 - -#if BSDCOMPRESS_SUPPORT -/* - * Definitions for BSD-Compress. - */ - -#define CI_BSD_COMPRESS 21 /* config. option for BSD-Compress */ -#define CILEN_BSD_COMPRESS 3 /* length of config. option */ - -/* Macros for handling the 3rd byte of the BSD-Compress config option. */ -#define BSD_NBITS(x) ((x) & 0x1F) /* number of bits requested */ -#define BSD_VERSION(x) ((x) >> 5) /* version of option format */ -#define BSD_CURRENT_VERSION 1 /* current version number */ -#define BSD_MAKE_OPT(v, n) (((v) << 5) | (n)) - -#define BSD_MIN_BITS 9 /* smallest code size supported */ -#define BSD_MAX_BITS 15 /* largest code size supported */ -#endif /* BSDCOMPRESS_SUPPORT */ - -#if DEFLATE_SUPPORT -/* - * Definitions for Deflate. - */ - -#define CI_DEFLATE 26 /* config option for Deflate */ -#define CI_DEFLATE_DRAFT 24 /* value used in original draft RFC */ -#define CILEN_DEFLATE 4 /* length of its config option */ - -#define DEFLATE_MIN_SIZE 9 -#define DEFLATE_MAX_SIZE 15 -#define DEFLATE_METHOD_VAL 8 -#define DEFLATE_SIZE(x) (((x) >> 4) + 8) -#define DEFLATE_METHOD(x) ((x) & 0x0F) -#define DEFLATE_MAKE_OPT(w) ((((w) - 8) << 4) + DEFLATE_METHOD_VAL) -#define DEFLATE_CHK_SEQUENCE 0 -#endif /* DEFLATE_SUPPORT */ - -#if MPPE_SUPPORT -/* - * Definitions for MPPE. - */ - -#define CI_MPPE 18 /* config option for MPPE */ -#define CILEN_MPPE 6 /* length of config option */ -#endif /* MPPE_SUPPORT */ - -#if PREDICTOR_SUPPORT -/* - * Definitions for other, as yet unsupported, compression methods. - */ - -#define CI_PREDICTOR_1 1 /* config option for Predictor-1 */ -#define CILEN_PREDICTOR_1 2 /* length of its config option */ -#define CI_PREDICTOR_2 2 /* config option for Predictor-2 */ -#define CILEN_PREDICTOR_2 2 /* length of its config option */ -#endif /* PREDICTOR_SUPPORT */ - -typedef struct ccp_options { -#if DEFLATE_SUPPORT - unsigned int deflate :1; /* do Deflate? */ - unsigned int deflate_correct :1; /* use correct code for deflate? */ - unsigned int deflate_draft :1; /* use draft RFC code for deflate? */ -#endif /* DEFLATE_SUPPORT */ -#if BSDCOMPRESS_SUPPORT - unsigned int bsd_compress :1; /* do BSD Compress? */ -#endif /* BSDCOMPRESS_SUPPORT */ -#if PREDICTOR_SUPPORT - unsigned int predictor_1 :1; /* do Predictor-1? */ - unsigned int predictor_2 :1; /* do Predictor-2? */ -#endif /* PREDICTOR_SUPPORT */ - -#if MPPE_SUPPORT - u8_t mppe; /* MPPE bitfield */ -#endif /* MPPE_SUPPORT */ -#if BSDCOMPRESS_SUPPORT - u_short bsd_bits; /* # bits/code for BSD Compress */ -#endif /* BSDCOMPRESS_SUPPORT */ -#if DEFLATE_SUPPORT - u_short deflate_size; /* lg(window size) for Deflate */ -#endif /* DEFLATE_SUPPORT */ - u8_t method; /* code for chosen compression method */ -} ccp_options; - -extern const struct protent ccp_protent; - -void ccp_resetrequest(ppp_pcb *pcb); /* Issue a reset-request. */ - -#ifdef __cplusplus -} -#endif - -#endif /* CCP_H */ -#endif /* PPP_SUPPORT && CCP_SUPPORT */ diff --git a/core/c/include/netif/ppp/chap-md5.h b/core/c/include/netif/ppp/chap-md5.h deleted file mode 100755 index 1f58dfe..0000000 --- a/core/c/include/netif/ppp/chap-md5.h +++ /dev/null @@ -1,36 +0,0 @@ -/* - * chap-md5.h - New CHAP/MD5 implementation. - * - * Copyright (c) 2003 Paul Mackerras. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. The name(s) of the authors of this software must not be used to - * endorse or promote products derived from this software without - * prior written permission. - * - * 3. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Paul Mackerras - * ". - * - * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && CHAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -extern const struct chap_digest_type md5_digest; - -#endif /* PPP_SUPPORT && CHAP_SUPPORT */ diff --git a/core/c/include/netif/ppp/chap-new.h b/core/c/include/netif/ppp/chap-new.h deleted file mode 100755 index dadd9c2..0000000 --- a/core/c/include/netif/ppp/chap-new.h +++ /dev/null @@ -1,200 +0,0 @@ -/* - * chap-new.c - New CHAP implementation. - * - * Copyright (c) 2003 Paul Mackerras. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. The name(s) of the authors of this software must not be used to - * endorse or promote products derived from this software without - * prior written permission. - * - * 3. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Paul Mackerras - * ". - * - * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && CHAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef CHAP_H -#define CHAP_H - -#include "ppp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * CHAP packets begin with a standard header with code, id, len (2 bytes). - */ -#define CHAP_HDRLEN 4 - -/* - * Values for the code field. - */ -#define CHAP_CHALLENGE 1 -#define CHAP_RESPONSE 2 -#define CHAP_SUCCESS 3 -#define CHAP_FAILURE 4 - -/* - * CHAP digest codes. - */ -#define CHAP_MD5 5 -#if MSCHAP_SUPPORT -#define CHAP_MICROSOFT 0x80 -#define CHAP_MICROSOFT_V2 0x81 -#endif /* MSCHAP_SUPPORT */ - -/* - * Semi-arbitrary limits on challenge and response fields. - */ -#define MAX_CHALLENGE_LEN 64 -#define MAX_RESPONSE_LEN 64 - -/* - * These limits apply to challenge and response packets we send. - * The +4 is the +1 that we actually need rounded up. - */ -#define CHAL_MAX_PKTLEN (PPP_HDRLEN + CHAP_HDRLEN + 4 + MAX_CHALLENGE_LEN + MAXNAMELEN) -#define RESP_MAX_PKTLEN (PPP_HDRLEN + CHAP_HDRLEN + 4 + MAX_RESPONSE_LEN + MAXNAMELEN) - -/* bitmask of supported algorithms */ -#if MSCHAP_SUPPORT -#define MDTYPE_MICROSOFT_V2 0x1 -#define MDTYPE_MICROSOFT 0x2 -#endif /* MSCHAP_SUPPORT */ -#define MDTYPE_MD5 0x4 -#define MDTYPE_NONE 0 - -#if MSCHAP_SUPPORT -/* Return the digest alg. ID for the most preferred digest type. */ -#define CHAP_DIGEST(mdtype) \ - ((mdtype) & MDTYPE_MD5)? CHAP_MD5: \ - ((mdtype) & MDTYPE_MICROSOFT_V2)? CHAP_MICROSOFT_V2: \ - ((mdtype) & MDTYPE_MICROSOFT)? CHAP_MICROSOFT: \ - 0 -#else /* !MSCHAP_SUPPORT */ -#define CHAP_DIGEST(mdtype) \ - ((mdtype) & MDTYPE_MD5)? CHAP_MD5: \ - 0 -#endif /* MSCHAP_SUPPORT */ - -/* Return the bit flag (lsb set) for our most preferred digest type. */ -#define CHAP_MDTYPE(mdtype) ((mdtype) ^ ((mdtype) - 1)) & (mdtype) - -/* Return the bit flag for a given digest algorithm ID. */ -#if MSCHAP_SUPPORT -#define CHAP_MDTYPE_D(digest) \ - ((digest) == CHAP_MICROSOFT_V2)? MDTYPE_MICROSOFT_V2: \ - ((digest) == CHAP_MICROSOFT)? MDTYPE_MICROSOFT: \ - ((digest) == CHAP_MD5)? MDTYPE_MD5: \ - 0 -#else /* !MSCHAP_SUPPORT */ -#define CHAP_MDTYPE_D(digest) \ - ((digest) == CHAP_MD5)? MDTYPE_MD5: \ - 0 -#endif /* MSCHAP_SUPPORT */ - -/* Can we do the requested digest? */ -#if MSCHAP_SUPPORT -#define CHAP_CANDIGEST(mdtype, digest) \ - ((digest) == CHAP_MICROSOFT_V2)? (mdtype) & MDTYPE_MICROSOFT_V2: \ - ((digest) == CHAP_MICROSOFT)? (mdtype) & MDTYPE_MICROSOFT: \ - ((digest) == CHAP_MD5)? (mdtype) & MDTYPE_MD5: \ - 0 -#else /* !MSCHAP_SUPPORT */ -#define CHAP_CANDIGEST(mdtype, digest) \ - ((digest) == CHAP_MD5)? (mdtype) & MDTYPE_MD5: \ - 0 -#endif /* MSCHAP_SUPPORT */ - -/* - * The code for each digest type has to supply one of these. - */ -struct chap_digest_type { - int code; - -#if PPP_SERVER - /* - * Note: challenge and response arguments below are formatted as - * a length byte followed by the actual challenge/response data. - */ - void (*generate_challenge)(ppp_pcb *pcb, unsigned char *challenge); - int (*verify_response)(ppp_pcb *pcb, int id, const char *name, - const unsigned char *secret, int secret_len, - const unsigned char *challenge, const unsigned char *response, - char *message, int message_space); -#endif /* PPP_SERVER */ - void (*make_response)(ppp_pcb *pcb, unsigned char *response, int id, const char *our_name, - const unsigned char *challenge, const char *secret, int secret_len, - unsigned char *priv); - int (*check_success)(ppp_pcb *pcb, unsigned char *pkt, int len, unsigned char *priv); - void (*handle_failure)(ppp_pcb *pcb, unsigned char *pkt, int len); -}; - -/* - * Each interface is described by chap structure. - */ -#if CHAP_SUPPORT -typedef struct chap_client_state { - u8_t flags; - const char *name; - const struct chap_digest_type *digest; - unsigned char priv[64]; /* private area for digest's use */ -} chap_client_state; - -#if PPP_SERVER -typedef struct chap_server_state { - u8_t flags; - u8_t id; - const char *name; - const struct chap_digest_type *digest; - int challenge_xmits; - int challenge_pktlen; - unsigned char challenge[CHAL_MAX_PKTLEN]; -} chap_server_state; -#endif /* PPP_SERVER */ -#endif /* CHAP_SUPPORT */ - -#if 0 /* UNUSED */ -/* Hook for a plugin to validate CHAP challenge */ -extern int (*chap_verify_hook)(char *name, char *ourname, int id, - const struct chap_digest_type *digest, - unsigned char *challenge, unsigned char *response, - char *message, int message_space); -#endif /* UNUSED */ - -#if PPP_SERVER -/* Called by authentication code to start authenticating the peer. */ -extern void chap_auth_peer(ppp_pcb *pcb, const char *our_name, int digest_code); -#endif /* PPP_SERVER */ - -/* Called by auth. code to start authenticating us to the peer. */ -extern void chap_auth_with_peer(ppp_pcb *pcb, const char *our_name, int digest_code); - -/* Represents the CHAP protocol to the main pppd code */ -extern const struct protent chap_protent; - -#ifdef __cplusplus -} -#endif - -#endif /* CHAP_H */ -#endif /* PPP_SUPPORT && CHAP_SUPPORT */ diff --git a/core/c/include/netif/ppp/chap_ms.h b/core/c/include/netif/ppp/chap_ms.h deleted file mode 100755 index ed52b40..0000000 --- a/core/c/include/netif/ppp/chap_ms.h +++ /dev/null @@ -1,44 +0,0 @@ -/* - * chap_ms.h - Challenge Handshake Authentication Protocol definitions. - * - * Copyright (c) 1995 Eric Rosenquist. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name(s) of the authors of this software must not be used to - * endorse or promote products derived from this software without - * prior written permission. - * - * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * $Id: chap_ms.h,v 1.13 2004/11/15 22:13:26 paulus Exp $ - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && MSCHAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef CHAPMS_INCLUDE -#define CHAPMS_INCLUDE - -extern const struct chap_digest_type chapms_digest; -extern const struct chap_digest_type chapms2_digest; - -#endif /* CHAPMS_INCLUDE */ - -#endif /* PPP_SUPPORT && MSCHAP_SUPPORT */ diff --git a/core/c/include/netif/ppp/eap.h b/core/c/include/netif/ppp/eap.h deleted file mode 100755 index 61efdaf..0000000 --- a/core/c/include/netif/ppp/eap.h +++ /dev/null @@ -1,169 +0,0 @@ -/* - * eap.h - Extensible Authentication Protocol for PPP (RFC 2284) - * - * Copyright (c) 2001 by Sun Microsystems, Inc. - * All rights reserved. - * - * Non-exclusive rights to redistribute, modify, translate, and use - * this software in source and binary forms, in whole or in part, is - * hereby granted, provided that the above copyright notice is - * duplicated in any source form, and that neither the name of the - * copyright holder nor the author is used to endorse or promote - * products derived from this software. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * Original version by James Carlson - * - * $Id: eap.h,v 1.2 2003/06/11 23:56:26 paulus Exp $ - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && EAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef PPP_EAP_H -#define PPP_EAP_H - -#include "ppp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Packet header = Code, id, length. - */ -#define EAP_HEADERLEN 4 - - -/* EAP message codes. */ -#define EAP_REQUEST 1 -#define EAP_RESPONSE 2 -#define EAP_SUCCESS 3 -#define EAP_FAILURE 4 - -/* EAP types */ -#define EAPT_IDENTITY 1 -#define EAPT_NOTIFICATION 2 -#define EAPT_NAK 3 /* (response only) */ -#define EAPT_MD5CHAP 4 -#define EAPT_OTP 5 /* One-Time Password; RFC 1938 */ -#define EAPT_TOKEN 6 /* Generic Token Card */ -/* 7 and 8 are unassigned. */ -#define EAPT_RSA 9 /* RSA Public Key Authentication */ -#define EAPT_DSS 10 /* DSS Unilateral */ -#define EAPT_KEA 11 /* KEA */ -#define EAPT_KEA_VALIDATE 12 /* KEA-VALIDATE */ -#define EAPT_TLS 13 /* EAP-TLS */ -#define EAPT_DEFENDER 14 /* Defender Token (AXENT) */ -#define EAPT_W2K 15 /* Windows 2000 EAP */ -#define EAPT_ARCOT 16 /* Arcot Systems */ -#define EAPT_CISCOWIRELESS 17 /* Cisco Wireless */ -#define EAPT_NOKIACARD 18 /* Nokia IP smart card */ -#define EAPT_SRP 19 /* Secure Remote Password */ -/* 20 is deprecated */ - -/* EAP SRP-SHA1 Subtypes */ -#define EAPSRP_CHALLENGE 1 /* Request 1 - Challenge */ -#define EAPSRP_CKEY 1 /* Response 1 - Client Key */ -#define EAPSRP_SKEY 2 /* Request 2 - Server Key */ -#define EAPSRP_CVALIDATOR 2 /* Response 2 - Client Validator */ -#define EAPSRP_SVALIDATOR 3 /* Request 3 - Server Validator */ -#define EAPSRP_ACK 3 /* Response 3 - final ack */ -#define EAPSRP_LWRECHALLENGE 4 /* Req/resp 4 - Lightweight rechal */ - -#define SRPVAL_EBIT 0x00000001 /* Use shared key for ECP */ - -#define SRP_PSEUDO_ID "pseudo_" -#define SRP_PSEUDO_LEN 7 - -#define MD5_SIGNATURE_SIZE 16 -#define EAP_MIN_CHALLENGE_LENGTH 17 -#define EAP_MAX_CHALLENGE_LENGTH 24 -#define EAP_MIN_MAX_POWER_OF_TWO_CHALLENGE_LENGTH 3 /* 2^3-1 = 7, 17+7 = 24 */ - -#define EAP_STATES \ - "Initial", "Pending", "Closed", "Listen", "Identify", \ - "SRP1", "SRP2", "SRP3", "MD5Chall", "Open", "SRP4", "BadAuth" - -#define eap_client_active(pcb) ((pcb)->eap.es_client.ea_state == eapListen) -#if PPP_SERVER -#define eap_server_active(pcb) \ - ((pcb)->eap.es_server.ea_state >= eapIdentify && \ - (pcb)->eap.es_server.ea_state <= eapMD5Chall) -#endif /* PPP_SERVER */ - -/* - * Complete EAP state for one PPP session. - */ -enum eap_state_code { - eapInitial = 0, /* No EAP authentication yet requested */ - eapPending, /* Waiting for LCP (no timer) */ - eapClosed, /* Authentication not in use */ - eapListen, /* Client ready (and timer running) */ - eapIdentify, /* EAP Identify sent */ - eapSRP1, /* Sent EAP SRP-SHA1 Subtype 1 */ - eapSRP2, /* Sent EAP SRP-SHA1 Subtype 2 */ - eapSRP3, /* Sent EAP SRP-SHA1 Subtype 3 */ - eapMD5Chall, /* Sent MD5-Challenge */ - eapOpen, /* Completed authentication */ - eapSRP4, /* Sent EAP SRP-SHA1 Subtype 4 */ - eapBadAuth /* Failed authentication */ -}; - -struct eap_auth { - const char *ea_name; /* Our name */ - char ea_peer[MAXNAMELEN +1]; /* Peer's name */ - void *ea_session; /* Authentication library linkage */ - u_char *ea_skey; /* Shared encryption key */ - u_short ea_namelen; /* Length of our name */ - u_short ea_peerlen; /* Length of peer's name */ - enum eap_state_code ea_state; - u_char ea_id; /* Current id */ - u_char ea_requests; /* Number of Requests sent/received */ - u_char ea_responses; /* Number of Responses */ - u_char ea_type; /* One of EAPT_* */ - u32_t ea_keyflags; /* SRP shared key usage flags */ -}; - -#ifndef EAP_MAX_CHALLENGE_LENGTH -#define EAP_MAX_CHALLENGE_LENGTH 24 -#endif -typedef struct eap_state { - struct eap_auth es_client; /* Client (authenticatee) data */ -#if PPP_SERVER - struct eap_auth es_server; /* Server (authenticator) data */ -#endif /* PPP_SERVER */ - int es_savedtime; /* Saved timeout */ - int es_rechallenge; /* EAP rechallenge interval */ - int es_lwrechallenge; /* SRP lightweight rechallenge inter */ - u8_t es_usepseudo; /* Use SRP Pseudonym if offered one */ - int es_usedpseudo; /* Set if we already sent PN */ - int es_challen; /* Length of challenge string */ - u_char es_challenge[EAP_MAX_CHALLENGE_LENGTH]; -} eap_state; - -/* - * Timeouts. - */ -#if 0 /* moved to ppp_opts.h */ -#define EAP_DEFTIMEOUT 3 /* Timeout (seconds) for rexmit */ -#define EAP_DEFTRANSMITS 10 /* max # times to transmit */ -#define EAP_DEFREQTIME 20 /* Time to wait for peer request */ -#define EAP_DEFALLOWREQ 20 /* max # times to accept requests */ -#endif /* moved to ppp_opts.h */ - -void eap_authwithpeer(ppp_pcb *pcb, const char *localname); -void eap_authpeer(ppp_pcb *pcb, const char *localname); - -extern const struct protent eap_protent; - -#ifdef __cplusplus -} -#endif - -#endif /* PPP_EAP_H */ - -#endif /* PPP_SUPPORT && EAP_SUPPORT */ diff --git a/core/c/include/netif/ppp/ecp.h b/core/c/include/netif/ppp/ecp.h deleted file mode 100755 index 8be1872..0000000 --- a/core/c/include/netif/ppp/ecp.h +++ /dev/null @@ -1,62 +0,0 @@ -/* - * ecp.h - Definitions for PPP Encryption Control Protocol. - * - * Copyright (c) 2002 Google, Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name(s) of the authors of this software must not be used to - * endorse or promote products derived from this software without - * prior written permission. - * - * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * $Id: ecp.h,v 1.2 2003/01/10 07:12:36 fcusack Exp $ - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && ECP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef ECP_H -#define ECP_H - -#ifdef __cplusplus -extern "C" { -#endif - -typedef struct ecp_options { - bool required; /* Is ECP required? */ - unsigned enctype; /* Encryption type */ -} ecp_options; - -extern fsm ecp_fsm[]; -extern ecp_options ecp_wantoptions[]; -extern ecp_options ecp_gotoptions[]; -extern ecp_options ecp_allowoptions[]; -extern ecp_options ecp_hisoptions[]; - -extern const struct protent ecp_protent; - -#ifdef __cplusplus -} -#endif - -#endif /* ECP_H */ -#endif /* PPP_SUPPORT && ECP_SUPPORT */ diff --git a/core/c/include/netif/ppp/eui64.h b/core/c/include/netif/ppp/eui64.h deleted file mode 100755 index ad199ea..0000000 --- a/core/c/include/netif/ppp/eui64.h +++ /dev/null @@ -1,102 +0,0 @@ -/* - * eui64.h - EUI64 routines for IPv6CP. - * - * Copyright (c) 1999 Tommi Komulainen. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name(s) of the authors of this software must not be used to - * endorse or promote products derived from this software without - * prior written permission. - * - * 4. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Tommi Komulainen - * ". - * - * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * $Id: eui64.h,v 1.6 2002/12/04 23:03:32 paulus Exp $ -*/ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && PPP_IPV6_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef EUI64_H -#define EUI64_H - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * @todo: - * - * Maybe this should be done by processing struct in6_addr directly... - */ -typedef union -{ - u8_t e8[8]; - u16_t e16[4]; - u32_t e32[2]; -} eui64_t; - -#define eui64_iszero(e) (((e).e32[0] | (e).e32[1]) == 0) -#define eui64_equals(e, o) (((e).e32[0] == (o).e32[0]) && \ - ((e).e32[1] == (o).e32[1])) -#define eui64_zero(e) (e).e32[0] = (e).e32[1] = 0; - -#define eui64_copy(s, d) memcpy(&(d), &(s), sizeof(eui64_t)) - -#define eui64_magic(e) do { \ - (e).e32[0] = magic(); \ - (e).e32[1] = magic(); \ - (e).e8[0] &= ~2; \ - } while (0) -#define eui64_magic_nz(x) do { \ - eui64_magic(x); \ - } while (eui64_iszero(x)) -#define eui64_magic_ne(x, y) do { \ - eui64_magic(x); \ - } while (eui64_equals(x, y)) - -#define eui64_get(ll, cp) do { \ - eui64_copy((*cp), (ll)); \ - (cp) += sizeof(eui64_t); \ - } while (0) - -#define eui64_put(ll, cp) do { \ - eui64_copy((ll), (*cp)); \ - (cp) += sizeof(eui64_t); \ - } while (0) - -#define eui64_set32(e, l) do { \ - (e).e32[0] = 0; \ - (e).e32[1] = lwip_htonl(l); \ - } while (0) -#define eui64_setlo32(e, l) eui64_set32(e, l) - -char *eui64_ntoa(eui64_t); /* Returns ascii representation of id */ - -#ifdef __cplusplus -} -#endif - -#endif /* EUI64_H */ -#endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */ diff --git a/core/c/include/netif/ppp/fsm.h b/core/c/include/netif/ppp/fsm.h deleted file mode 100755 index e91536d..0000000 --- a/core/c/include/netif/ppp/fsm.h +++ /dev/null @@ -1,182 +0,0 @@ -/* - * fsm.h - {Link, IP} Control Protocol Finite State Machine definitions. - * - * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name "Carnegie Mellon University" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For permission or any legal - * details, please contact - * Office of Technology Transfer - * Carnegie Mellon University - * 5000 Forbes Avenue - * Pittsburgh, PA 15213-3890 - * (412) 268-4387, fax: (412) 268-7395 - * tech-transfer@andrew.cmu.edu - * - * 4. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Computing Services - * at Carnegie Mellon University (http://www.cmu.edu/computing/)." - * - * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE - * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * $Id: fsm.h,v 1.10 2004/11/13 02:28:15 paulus Exp $ - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef FSM_H -#define FSM_H - -#include "ppp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Packet header = Code, id, length. - */ -#define HEADERLEN 4 - - -/* - * CP (LCP, IPCP, etc.) codes. - */ -#define CONFREQ 1 /* Configuration Request */ -#define CONFACK 2 /* Configuration Ack */ -#define CONFNAK 3 /* Configuration Nak */ -#define CONFREJ 4 /* Configuration Reject */ -#define TERMREQ 5 /* Termination Request */ -#define TERMACK 6 /* Termination Ack */ -#define CODEREJ 7 /* Code Reject */ - - -/* - * Each FSM is described by an fsm structure and fsm callbacks. - */ -typedef struct fsm { - ppp_pcb *pcb; /* PPP Interface */ - const struct fsm_callbacks *callbacks; /* Callback routines */ - const char *term_reason; /* Reason for closing protocol */ - u8_t seen_ack; /* Have received valid Ack/Nak/Rej to Req */ - /* -- This is our only flag, we might use u_int :1 if we have more flags */ - u16_t protocol; /* Data Link Layer Protocol field value */ - u8_t state; /* State */ - u8_t flags; /* Contains option bits */ - u8_t id; /* Current id */ - u8_t reqid; /* Current request id */ - u8_t retransmits; /* Number of retransmissions left */ - u8_t nakloops; /* Number of nak loops since last ack */ - u8_t rnakloops; /* Number of naks received */ - u8_t maxnakloops; /* Maximum number of nak loops tolerated - (necessary because IPCP require a custom large max nak loops value) */ - u8_t term_reason_len; /* Length of term_reason */ -} fsm; - - -typedef struct fsm_callbacks { - void (*resetci) /* Reset our Configuration Information */ - (fsm *); - int (*cilen) /* Length of our Configuration Information */ - (fsm *); - void (*addci) /* Add our Configuration Information */ - (fsm *, u_char *, int *); - int (*ackci) /* ACK our Configuration Information */ - (fsm *, u_char *, int); - int (*nakci) /* NAK our Configuration Information */ - (fsm *, u_char *, int, int); - int (*rejci) /* Reject our Configuration Information */ - (fsm *, u_char *, int); - int (*reqci) /* Request peer's Configuration Information */ - (fsm *, u_char *, int *, int); - void (*up) /* Called when fsm reaches PPP_FSM_OPENED state */ - (fsm *); - void (*down) /* Called when fsm leaves PPP_FSM_OPENED state */ - (fsm *); - void (*starting) /* Called when we want the lower layer */ - (fsm *); - void (*finished) /* Called when we don't want the lower layer */ - (fsm *); - void (*protreject) /* Called when Protocol-Reject received */ - (int); - void (*retransmit) /* Retransmission is necessary */ - (fsm *); - int (*extcode) /* Called when unknown code received */ - (fsm *, int, int, u_char *, int); - const char *proto_name; /* String name for protocol (for messages) */ -} fsm_callbacks; - - -/* - * Link states. - */ -#define PPP_FSM_INITIAL 0 /* Down, hasn't been opened */ -#define PPP_FSM_STARTING 1 /* Down, been opened */ -#define PPP_FSM_CLOSED 2 /* Up, hasn't been opened */ -#define PPP_FSM_STOPPED 3 /* Open, waiting for down event */ -#define PPP_FSM_CLOSING 4 /* Terminating the connection, not open */ -#define PPP_FSM_STOPPING 5 /* Terminating, but open */ -#define PPP_FSM_REQSENT 6 /* We've sent a Config Request */ -#define PPP_FSM_ACKRCVD 7 /* We've received a Config Ack */ -#define PPP_FSM_ACKSENT 8 /* We've sent a Config Ack */ -#define PPP_FSM_OPENED 9 /* Connection available */ - - -/* - * Flags - indicate options controlling FSM operation - */ -#define OPT_PASSIVE 1 /* Don't die if we don't get a response */ -#define OPT_RESTART 2 /* Treat 2nd OPEN as DOWN, UP */ -#define OPT_SILENT 4 /* Wait for peer to speak first */ - - -/* - * Timeouts. - */ -#if 0 /* moved to ppp_opts.h */ -#define DEFTIMEOUT 3 /* Timeout time in seconds */ -#define DEFMAXTERMREQS 2 /* Maximum Terminate-Request transmissions */ -#define DEFMAXCONFREQS 10 /* Maximum Configure-Request transmissions */ -#define DEFMAXNAKLOOPS 5 /* Maximum number of nak loops */ -#endif /* moved to ppp_opts.h */ - - -/* - * Prototypes - */ -void fsm_init(fsm *f); -void fsm_lowerup(fsm *f); -void fsm_lowerdown(fsm *f); -void fsm_open(fsm *f); -void fsm_close(fsm *f, const char *reason); -void fsm_input(fsm *f, u_char *inpacket, int l); -void fsm_protreject(fsm *f); -void fsm_sdata(fsm *f, u_char code, u_char id, const u_char *data, int datalen); - -#ifdef __cplusplus -} -#endif - -#endif /* FSM_H */ -#endif /* PPP_SUPPORT */ diff --git a/core/c/include/netif/ppp/ipcp.h b/core/c/include/netif/ppp/ipcp.h deleted file mode 100755 index 1735158..0000000 --- a/core/c/include/netif/ppp/ipcp.h +++ /dev/null @@ -1,134 +0,0 @@ -/* - * ipcp.h - IP Control Protocol definitions. - * - * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name "Carnegie Mellon University" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For permission or any legal - * details, please contact - * Office of Technology Transfer - * Carnegie Mellon University - * 5000 Forbes Avenue - * Pittsburgh, PA 15213-3890 - * (412) 268-4387, fax: (412) 268-7395 - * tech-transfer@andrew.cmu.edu - * - * 4. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Computing Services - * at Carnegie Mellon University (http://www.cmu.edu/computing/)." - * - * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE - * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * $Id: ipcp.h,v 1.14 2002/12/04 23:03:32 paulus Exp $ - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && PPP_IPV4_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef IPCP_H -#define IPCP_H - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Options. - */ -#define CI_ADDRS 1 /* IP Addresses */ -#if VJ_SUPPORT -#define CI_COMPRESSTYPE 2 /* Compression Type */ -#endif /* VJ_SUPPORT */ -#define CI_ADDR 3 - -#if LWIP_DNS -#define CI_MS_DNS1 129 /* Primary DNS value */ -#define CI_MS_DNS2 131 /* Secondary DNS value */ -#endif /* LWIP_DNS */ -#if 0 /* UNUSED - WINS */ -#define CI_MS_WINS1 130 /* Primary WINS value */ -#define CI_MS_WINS2 132 /* Secondary WINS value */ -#endif /* UNUSED - WINS */ - -#if VJ_SUPPORT -#define MAX_STATES 16 /* from slcompress.h */ - -#define IPCP_VJMODE_OLD 1 /* "old" mode (option # = 0x0037) */ -#define IPCP_VJMODE_RFC1172 2 /* "old-rfc"mode (option # = 0x002d) */ -#define IPCP_VJMODE_RFC1332 3 /* "new-rfc"mode (option # = 0x002d, */ - /* maxslot and slot number compression) */ - -#define IPCP_VJ_COMP 0x002d /* current value for VJ compression option*/ -#define IPCP_VJ_COMP_OLD 0x0037 /* "old" (i.e, broken) value for VJ */ - /* compression option*/ -#endif /* VJ_SUPPORT */ - -typedef struct ipcp_options { - unsigned int neg_addr :1; /* Negotiate IP Address? */ - unsigned int old_addrs :1; /* Use old (IP-Addresses) option? */ - unsigned int req_addr :1; /* Ask peer to send IP address? */ -#if 0 /* UNUSED */ - unsigned int default_route :1; /* Assign default route through interface? */ - unsigned int replace_default_route :1; /* Replace default route through interface? */ -#endif /* UNUSED */ -#if 0 /* UNUSED - PROXY ARP */ - unsigned int proxy_arp :1; /* Make proxy ARP entry for peer? */ -#endif /* UNUSED - PROXY ARP */ -#if VJ_SUPPORT - unsigned int neg_vj :1; /* Van Jacobson Compression? */ - unsigned int old_vj :1; /* use old (short) form of VJ option? */ - unsigned int cflag :1; -#endif /* VJ_SUPPORT */ - unsigned int accept_local :1; /* accept peer's value for ouraddr */ - unsigned int accept_remote :1; /* accept peer's value for hisaddr */ -#if LWIP_DNS - unsigned int req_dns1 :1; /* Ask peer to send primary DNS address? */ - unsigned int req_dns2 :1; /* Ask peer to send secondary DNS address? */ -#endif /* LWIP_DNS */ - - u32_t ouraddr, hisaddr; /* Addresses in NETWORK BYTE ORDER */ -#if LWIP_DNS - u32_t dnsaddr[2]; /* Primary and secondary MS DNS entries */ -#endif /* LWIP_DNS */ -#if 0 /* UNUSED - WINS */ - u32_t winsaddr[2]; /* Primary and secondary MS WINS entries */ -#endif /* UNUSED - WINS */ - -#if VJ_SUPPORT - u16_t vj_protocol; /* protocol value to use in VJ option */ - u8_t maxslotindex; /* values for RFC1332 VJ compression neg. */ -#endif /* VJ_SUPPORT */ -} ipcp_options; - -#if 0 /* UNUSED, already defined by lwIP */ -char *ip_ntoa (u32_t); -#endif /* UNUSED, already defined by lwIP */ - -extern const struct protent ipcp_protent; - -#ifdef __cplusplus -} -#endif - -#endif /* IPCP_H */ -#endif /* PPP_SUPPORT && PPP_IPV4_SUPPORT */ diff --git a/core/c/include/netif/ppp/ipv6cp.h b/core/c/include/netif/ppp/ipv6cp.h deleted file mode 100755 index 48b0715..0000000 --- a/core/c/include/netif/ppp/ipv6cp.h +++ /dev/null @@ -1,191 +0,0 @@ -/* - * ipv6cp.h - PPP IPV6 Control Protocol. - * - * Copyright (c) 1999 Tommi Komulainen. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name(s) of the authors of this software must not be used to - * endorse or promote products derived from this software without - * prior written permission. - * - * 4. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Tommi Komulainen - * ". - * - * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - */ - -/* Original version, based on RFC2023 : - - Copyright (c) 1995, 1996, 1997 Francis.Dupont@inria.fr, INRIA Rocquencourt, - Alain.Durand@imag.fr, IMAG, - Jean-Luc.Richier@imag.fr, IMAG-LSR. - - Copyright (c) 1998, 1999 Francis.Dupont@inria.fr, GIE DYADE, - Alain.Durand@imag.fr, IMAG, - Jean-Luc.Richier@imag.fr, IMAG-LSR. - - Ce travail a été fait au sein du GIE DYADE (Groupement d'Intérêt - Économique ayant pour membres BULL S.A. et l'INRIA). - - Ce logiciel informatique est disponible aux conditions - usuelles dans la recherche, c'est-à-dire qu'il peut - être utilisé, copié, modifié, distribué à l'unique - condition que ce texte soit conservé afin que - l'origine de ce logiciel soit reconnue. - - Le nom de l'Institut National de Recherche en Informatique - et en Automatique (INRIA), de l'IMAG, ou d'une personne morale - ou physique ayant participé à l'élaboration de ce logiciel ne peut - être utilisé sans son accord préalable explicite. - - Ce logiciel est fourni tel quel sans aucune garantie, - support ou responsabilité d'aucune sorte. - Ce logiciel est dérivé de sources d'origine - "University of California at Berkeley" et - "Digital Equipment Corporation" couvertes par des copyrights. - - L'Institut d'Informatique et de Mathématiques Appliquées de Grenoble (IMAG) - est une fédération d'unités mixtes de recherche du CNRS, de l'Institut National - Polytechnique de Grenoble et de l'Université Joseph Fourier regroupant - sept laboratoires dont le laboratoire Logiciels, Systèmes, Réseaux (LSR). - - This work has been done in the context of GIE DYADE (joint R & D venture - between BULL S.A. and INRIA). - - This software is available with usual "research" terms - with the aim of retain credits of the software. - Permission to use, copy, modify and distribute this software for any - purpose and without fee is hereby granted, provided that the above - copyright notice and this permission notice appear in all copies, - and the name of INRIA, IMAG, or any contributor not be used in advertising - or publicity pertaining to this material without the prior explicit - permission. The software is provided "as is" without any - warranties, support or liabilities of any kind. - This software is derived from source code from - "University of California at Berkeley" and - "Digital Equipment Corporation" protected by copyrights. - - Grenoble's Institute of Computer Science and Applied Mathematics (IMAG) - is a federation of seven research units funded by the CNRS, National - Polytechnic Institute of Grenoble and University Joseph Fourier. - The research unit in Software, Systems, Networks (LSR) is member of IMAG. -*/ - -/* - * Derived from : - * - * - * ipcp.h - IP Control Protocol definitions. - * - * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name "Carnegie Mellon University" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For permission or any legal - * details, please contact - * Office of Technology Transfer - * Carnegie Mellon University - * 5000 Forbes Avenue - * Pittsburgh, PA 15213-3890 - * (412) 268-4387, fax: (412) 268-7395 - * tech-transfer@andrew.cmu.edu - * - * 4. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Computing Services - * at Carnegie Mellon University (http://www.cmu.edu/computing/)." - * - * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE - * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * $Id: ipv6cp.h,v 1.7 2002/12/04 23:03:32 paulus Exp $ - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && PPP_IPV6_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef IPV6CP_H -#define IPV6CP_H - -#include "eui64.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Options. - */ -#define CI_IFACEID 1 /* Interface Identifier */ -#ifdef IPV6CP_COMP -#define CI_COMPRESSTYPE 2 /* Compression Type */ -#endif /* IPV6CP_COMP */ - -/* No compression types yet defined. - *#define IPV6CP_COMP 0x004f - */ -typedef struct ipv6cp_options { - unsigned int neg_ifaceid :1; /* Negotiate interface identifier? */ - unsigned int req_ifaceid :1; /* Ask peer to send interface identifier? */ - unsigned int accept_local :1; /* accept peer's value for iface id? */ - unsigned int opt_local :1; /* ourtoken set by option */ - unsigned int opt_remote :1; /* histoken set by option */ - unsigned int use_ip :1; /* use IP as interface identifier */ -#if 0 - unsigned int use_persistent :1; /* use uniquely persistent value for address */ -#endif -#ifdef IPV6CP_COMP - unsigned int neg_vj :1; /* Van Jacobson Compression? */ -#endif /* IPV6CP_COMP */ - -#ifdef IPV6CP_COMP - u_short vj_protocol; /* protocol value to use in VJ option */ -#endif /* IPV6CP_COMP */ - eui64_t ourid, hisid; /* Interface identifiers */ -} ipv6cp_options; - -extern const struct protent ipv6cp_protent; - -#ifdef __cplusplus -} -#endif - -#endif /* IPV6CP_H */ -#endif /* PPP_SUPPORT && PPP_IPV6_SUPPORT */ diff --git a/core/c/include/netif/ppp/lcp.h b/core/c/include/netif/ppp/lcp.h deleted file mode 100755 index 37d0548..0000000 --- a/core/c/include/netif/ppp/lcp.h +++ /dev/null @@ -1,179 +0,0 @@ -/* - * lcp.h - Link Control Protocol definitions. - * - * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name "Carnegie Mellon University" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For permission or any legal - * details, please contact - * Office of Technology Transfer - * Carnegie Mellon University - * 5000 Forbes Avenue - * Pittsburgh, PA 15213-3890 - * (412) 268-4387, fax: (412) 268-7395 - * tech-transfer@andrew.cmu.edu - * - * 4. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Computing Services - * at Carnegie Mellon University (http://www.cmu.edu/computing/)." - * - * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE - * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * $Id: lcp.h,v 1.20 2004/11/14 22:53:42 carlsonj Exp $ - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef LCP_H -#define LCP_H - -#include "ppp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Options. - */ -#define CI_VENDOR 0 /* Vendor Specific */ -#define CI_MRU 1 /* Maximum Receive Unit */ -#define CI_ASYNCMAP 2 /* Async Control Character Map */ -#define CI_AUTHTYPE 3 /* Authentication Type */ -#define CI_QUALITY 4 /* Quality Protocol */ -#define CI_MAGICNUMBER 5 /* Magic Number */ -#define CI_PCOMPRESSION 7 /* Protocol Field Compression */ -#define CI_ACCOMPRESSION 8 /* Address/Control Field Compression */ -#define CI_FCSALTERN 9 /* FCS-Alternatives */ -#define CI_SDP 10 /* Self-Describing-Pad */ -#define CI_NUMBERED 11 /* Numbered-Mode */ -#define CI_CALLBACK 13 /* callback */ -#define CI_MRRU 17 /* max reconstructed receive unit; multilink */ -#define CI_SSNHF 18 /* short sequence numbers for multilink */ -#define CI_EPDISC 19 /* endpoint discriminator */ -#define CI_MPPLUS 22 /* Multi-Link-Plus-Procedure */ -#define CI_LDISC 23 /* Link-Discriminator */ -#define CI_LCPAUTH 24 /* LCP Authentication */ -#define CI_COBS 25 /* Consistent Overhead Byte Stuffing */ -#define CI_PREFELIS 26 /* Prefix Elision */ -#define CI_MPHDRFMT 27 /* MP Header Format */ -#define CI_I18N 28 /* Internationalization */ -#define CI_SDL 29 /* Simple Data Link */ - -/* - * LCP-specific packet types (code numbers). - */ -#define PROTREJ 8 /* Protocol Reject */ -#define ECHOREQ 9 /* Echo Request */ -#define ECHOREP 10 /* Echo Reply */ -#define DISCREQ 11 /* Discard Request */ -#define IDENTIF 12 /* Identification */ -#define TIMEREM 13 /* Time Remaining */ - -/* Value used as data for CI_CALLBACK option */ -#define CBCP_OPT 6 /* Use callback control protocol */ - -#if 0 /* moved to ppp_opts.h */ -#define DEFMRU 1500 /* Try for this */ -#define MINMRU 128 /* No MRUs below this */ -#define MAXMRU 16384 /* Normally limit MRU to this */ -#endif /* moved to ppp_opts.h */ - -/* An endpoint discriminator, used with multilink. */ -#define MAX_ENDP_LEN 20 /* maximum length of discriminator value */ -struct epdisc { - unsigned char class_; /* -- The word "class" is reserved in C++. */ - unsigned char length; - unsigned char value[MAX_ENDP_LEN]; -}; - -/* - * The state of options is described by an lcp_options structure. - */ -typedef struct lcp_options { - unsigned int passive :1; /* Don't die if we don't get a response */ - unsigned int silent :1; /* Wait for the other end to start first */ -#if 0 /* UNUSED */ - unsigned int restart :1; /* Restart vs. exit after close */ -#endif /* UNUSED */ - unsigned int neg_mru :1; /* Negotiate the MRU? */ - unsigned int neg_asyncmap :1; /* Negotiate the async map? */ -#if PAP_SUPPORT - unsigned int neg_upap :1; /* Ask for UPAP authentication? */ -#endif /* PAP_SUPPORT */ -#if CHAP_SUPPORT - unsigned int neg_chap :1; /* Ask for CHAP authentication? */ -#endif /* CHAP_SUPPORT */ -#if EAP_SUPPORT - unsigned int neg_eap :1; /* Ask for EAP authentication? */ -#endif /* EAP_SUPPORT */ - unsigned int neg_magicnumber :1; /* Ask for magic number? */ - unsigned int neg_pcompression :1; /* HDLC Protocol Field Compression? */ - unsigned int neg_accompression :1; /* HDLC Address/Control Field Compression? */ -#if LQR_SUPPORT - unsigned int neg_lqr :1; /* Negotiate use of Link Quality Reports */ -#endif /* LQR_SUPPORT */ - unsigned int neg_cbcp :1; /* Negotiate use of CBCP */ -#ifdef HAVE_MULTILINK - unsigned int neg_mrru :1; /* negotiate multilink MRRU */ -#endif /* HAVE_MULTILINK */ - unsigned int neg_ssnhf :1; /* negotiate short sequence numbers */ - unsigned int neg_endpoint :1; /* negotiate endpoint discriminator */ - - u16_t mru; /* Value of MRU */ -#ifdef HAVE_MULTILINK - u16_t mrru; /* Value of MRRU, and multilink enable */ -#endif /* MULTILINK */ -#if CHAP_SUPPORT - u8_t chap_mdtype; /* which MD types (hashing algorithm) */ -#endif /* CHAP_SUPPORT */ - u32_t asyncmap; /* Value of async map */ - u32_t magicnumber; - u8_t numloops; /* Number of loops during magic number neg. */ -#if LQR_SUPPORT - u32_t lqr_period; /* Reporting period for LQR 1/100ths second */ -#endif /* LQR_SUPPORT */ - struct epdisc endpoint; /* endpoint discriminator */ -} lcp_options; - -void lcp_open(ppp_pcb *pcb); -void lcp_close(ppp_pcb *pcb, const char *reason); -void lcp_lowerup(ppp_pcb *pcb); -void lcp_lowerdown(ppp_pcb *pcb); -void lcp_sprotrej(ppp_pcb *pcb, u_char *p, int len); /* send protocol reject */ - -extern const struct protent lcp_protent; - -#if 0 /* moved to ppp_opts.h */ -/* Default number of times we receive our magic number from the peer - before deciding the link is looped-back. */ -#define DEFLOOPBACKFAIL 10 -#endif /* moved to ppp_opts.h */ - -#ifdef __cplusplus -} -#endif - -#endif /* LCP_H */ -#endif /* PPP_SUPPORT */ diff --git a/core/c/include/netif/ppp/magic.h b/core/c/include/netif/ppp/magic.h deleted file mode 100755 index ffbd073..0000000 --- a/core/c/include/netif/ppp/magic.h +++ /dev/null @@ -1,130 +0,0 @@ -/* - * magic.h - PPP Magic Number definitions. - * - * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name "Carnegie Mellon University" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For permission or any legal - * details, please contact - * Office of Technology Transfer - * Carnegie Mellon University - * 5000 Forbes Avenue - * Pittsburgh, PA 15213-3890 - * (412) 268-4387, fax: (412) 268-7395 - * tech-transfer@andrew.cmu.edu - * - * 4. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Computing Services - * at Carnegie Mellon University (http://www.cmu.edu/computing/)." - * - * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE - * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * $Id: magic.h,v 1.5 2003/06/11 23:56:26 paulus Exp $ - */ -/***************************************************************************** -* randm.h - Random number generator header file. -* -* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. -* Copyright (c) 1998 Global Election Systems Inc. -* -* The authors hereby grant permission to use, copy, modify, distribute, -* and license this software and its documentation for any purpose, provided -* that existing copyright notices are retained in all copies and that this -* notice and the following disclaimer are included verbatim in any -* distributions. No written agreement, license, or royalty fee is required -* for any of the authorized uses. -* -* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR -* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES -* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. -* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -* -****************************************************************************** -* REVISION HISTORY -* -* 03-01-01 Marc Boucher -* Ported to lwIP. -* 98-05-29 Guy Lancaster , Global Election Systems Inc. -* Extracted from avos. -*****************************************************************************/ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef MAGIC_H -#define MAGIC_H - -#ifdef __cplusplus -extern "C" { -#endif - -/*********************** -*** PUBLIC FUNCTIONS *** -***********************/ - -/* - * Initialize the random number generator. - */ -void magic_init(void); - -/* - * Randomize our random seed value. To be called for truely random events - * such as user operations and network traffic. - */ -void magic_randomize(void); - -/* - * Return a new random number. - */ -u32_t magic(void); /* Returns the next magic number */ - -/* - * Fill buffer with random bytes - * - * Use the random pool to generate random data. This degrades to pseudo - * random when used faster than randomness is supplied using magic_churnrand(). - * Thus it's important to make sure that the results of this are not - * published directly because one could predict the next result to at - * least some degree. Also, it's important to get a good seed before - * the first use. - */ -void magic_random_bytes(unsigned char *buf, u32_t buf_len); - -/* - * Return a new random number between 0 and (2^pow)-1 included. - */ -u32_t magic_pow(u8_t pow); - -#ifdef __cplusplus -} -#endif - -#endif /* MAGIC_H */ - -#endif /* PPP_SUPPORT */ diff --git a/core/c/include/netif/ppp/mppe.h b/core/c/include/netif/ppp/mppe.h deleted file mode 100755 index 4f504fb..0000000 --- a/core/c/include/netif/ppp/mppe.h +++ /dev/null @@ -1,181 +0,0 @@ -/* - * mppe.h - Definitions for MPPE - * - * Copyright (c) 2008 Paul Mackerras. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name(s) of the authors of this software must not be used to - * endorse or promote products derived from this software without - * prior written permission. - * - * 4. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Paul Mackerras - * ". - * - * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && MPPE_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef MPPE_H -#define MPPE_H - -#include "netif/ppp/pppcrypt.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define MPPE_PAD 4 /* MPPE growth per frame */ -#define MPPE_MAX_KEY_LEN 16 /* largest key length (128-bit) */ - -/* option bits for ccp_options.mppe */ -#define MPPE_OPT_40 0x01 /* 40 bit */ -#define MPPE_OPT_128 0x02 /* 128 bit */ -#define MPPE_OPT_STATEFUL 0x04 /* stateful mode */ -/* unsupported opts */ -#define MPPE_OPT_56 0x08 /* 56 bit */ -#define MPPE_OPT_MPPC 0x10 /* MPPC compression */ -#define MPPE_OPT_D 0x20 /* Unknown */ -#define MPPE_OPT_UNSUPPORTED (MPPE_OPT_56|MPPE_OPT_MPPC|MPPE_OPT_D) -#define MPPE_OPT_UNKNOWN 0x40 /* Bits !defined in RFC 3078 were set */ - -/* - * This is not nice ... the alternative is a bitfield struct though. - * And unfortunately, we cannot share the same bits for the option - * names above since C and H are the same bit. We could do a u_int32 - * but then we have to do a lwip_htonl() all the time and/or we still need - * to know which octet is which. - */ -#define MPPE_C_BIT 0x01 /* MPPC */ -#define MPPE_D_BIT 0x10 /* Obsolete, usage unknown */ -#define MPPE_L_BIT 0x20 /* 40-bit */ -#define MPPE_S_BIT 0x40 /* 128-bit */ -#define MPPE_M_BIT 0x80 /* 56-bit, not supported */ -#define MPPE_H_BIT 0x01 /* Stateless (in a different byte) */ - -/* Does not include H bit; used for least significant octet only. */ -#define MPPE_ALL_BITS (MPPE_D_BIT|MPPE_L_BIT|MPPE_S_BIT|MPPE_M_BIT|MPPE_H_BIT) - -/* Build a CI from mppe opts (see RFC 3078) */ -#define MPPE_OPTS_TO_CI(opts, ci) \ - do { \ - u_char *ptr = ci; /* u_char[4] */ \ - \ - /* H bit */ \ - if (opts & MPPE_OPT_STATEFUL) \ - *ptr++ = 0x0; \ - else \ - *ptr++ = MPPE_H_BIT; \ - *ptr++ = 0; \ - *ptr++ = 0; \ - \ - /* S,L bits */ \ - *ptr = 0; \ - if (opts & MPPE_OPT_128) \ - *ptr |= MPPE_S_BIT; \ - if (opts & MPPE_OPT_40) \ - *ptr |= MPPE_L_BIT; \ - /* M,D,C bits not supported */ \ - } while (/* CONSTCOND */ 0) - -/* The reverse of the above */ -#define MPPE_CI_TO_OPTS(ci, opts) \ - do { \ - const u_char *ptr = ci; /* u_char[4] */ \ - \ - opts = 0; \ - \ - /* H bit */ \ - if (!(ptr[0] & MPPE_H_BIT)) \ - opts |= MPPE_OPT_STATEFUL; \ - \ - /* S,L bits */ \ - if (ptr[3] & MPPE_S_BIT) \ - opts |= MPPE_OPT_128; \ - if (ptr[3] & MPPE_L_BIT) \ - opts |= MPPE_OPT_40; \ - \ - /* M,D,C bits */ \ - if (ptr[3] & MPPE_M_BIT) \ - opts |= MPPE_OPT_56; \ - if (ptr[3] & MPPE_D_BIT) \ - opts |= MPPE_OPT_D; \ - if (ptr[3] & MPPE_C_BIT) \ - opts |= MPPE_OPT_MPPC; \ - \ - /* Other bits */ \ - if (ptr[0] & ~MPPE_H_BIT) \ - opts |= MPPE_OPT_UNKNOWN; \ - if (ptr[1] || ptr[2]) \ - opts |= MPPE_OPT_UNKNOWN; \ - if (ptr[3] & ~MPPE_ALL_BITS) \ - opts |= MPPE_OPT_UNKNOWN; \ - } while (/* CONSTCOND */ 0) - -/* Shared MPPE padding between MSCHAP and MPPE */ -#define SHA1_PAD_SIZE 40 - -static const u8_t mppe_sha1_pad1[SHA1_PAD_SIZE] = { - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 -}; -static const u8_t mppe_sha1_pad2[SHA1_PAD_SIZE] = { - 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, - 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, - 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, - 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2, 0xf2 -}; - -/* - * State for an MPPE (de)compressor. - */ -typedef struct ppp_mppe_state { - lwip_arc4_context arc4; - u8_t master_key[MPPE_MAX_KEY_LEN]; - u8_t session_key[MPPE_MAX_KEY_LEN]; - u8_t keylen; /* key length in bytes */ - /* NB: 128-bit == 16, 40-bit == 8! - * If we want to support 56-bit, the unit has to change to bits - */ - u8_t bits; /* MPPE control bits */ - u16_t ccount; /* 12-bit coherency count (seqno) */ - u16_t sanity_errors; /* take down LCP if too many */ - unsigned int stateful :1; /* stateful mode flag */ - unsigned int discard :1; /* stateful mode packet loss flag */ -} ppp_mppe_state; - -void mppe_set_key(ppp_pcb *pcb, ppp_mppe_state *state, u8_t *key); -void mppe_init(ppp_pcb *pcb, ppp_mppe_state *state, u8_t options); -void mppe_comp_reset(ppp_pcb *pcb, ppp_mppe_state *state); -err_t mppe_compress(ppp_pcb *pcb, ppp_mppe_state *state, struct pbuf **pb, u16_t protocol); -void mppe_decomp_reset(ppp_pcb *pcb, ppp_mppe_state *state); -err_t mppe_decompress(ppp_pcb *pcb, ppp_mppe_state *state, struct pbuf **pb); - -#ifdef __cplusplus -} -#endif - -#endif /* MPPE_H */ -#endif /* PPP_SUPPORT && MPPE_SUPPORT */ diff --git a/core/c/include/netif/ppp/polarssl/arc4.h b/core/c/include/netif/ppp/polarssl/arc4.h deleted file mode 100755 index 863626d..0000000 --- a/core/c/include/netif/ppp/polarssl/arc4.h +++ /dev/null @@ -1,81 +0,0 @@ -/** - * \file arc4.h - * - * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine - * - * Copyright (C) 2009 Paul Bakker - * - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the names of PolarSSL or XySSL nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "netif/ppp/ppp_opts.h" -#if LWIP_INCLUDED_POLARSSL_ARC4 - -#ifndef LWIP_INCLUDED_POLARSSL_ARC4_H -#define LWIP_INCLUDED_POLARSSL_ARC4_H - -/** - * \brief ARC4 context structure - */ -typedef struct -{ - int x; /*!< permutation index */ - int y; /*!< permutation index */ - unsigned char m[256]; /*!< permutation table */ -} -arc4_context; - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \brief ARC4 key schedule - * - * \param ctx ARC4 context to be initialized - * \param key the secret key - * \param keylen length of the key - */ -void arc4_setup( arc4_context *ctx, unsigned char *key, int keylen ); - -/** - * \brief ARC4 cipher function - * - * \param ctx ARC4 context - * \param buf buffer to be processed - * \param buflen amount of data in buf - */ -void arc4_crypt( arc4_context *ctx, unsigned char *buf, int buflen ); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_INCLUDED_POLARSSL_ARC4_H */ - -#endif /* LWIP_INCLUDED_POLARSSL_ARC4 */ diff --git a/core/c/include/netif/ppp/polarssl/des.h b/core/c/include/netif/ppp/polarssl/des.h deleted file mode 100755 index ad2f0a2..0000000 --- a/core/c/include/netif/ppp/polarssl/des.h +++ /dev/null @@ -1,92 +0,0 @@ -/** - * \file des.h - * - * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine - * - * Copyright (C) 2009 Paul Bakker - * - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the names of PolarSSL or XySSL nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "netif/ppp/ppp_opts.h" -#if LWIP_INCLUDED_POLARSSL_DES - -#ifndef LWIP_INCLUDED_POLARSSL_DES_H -#define LWIP_INCLUDED_POLARSSL_DES_H - -#define DES_ENCRYPT 1 -#define DES_DECRYPT 0 - -/** - * \brief DES context structure - */ -typedef struct -{ - int mode; /*!< encrypt/decrypt */ - unsigned long sk[32]; /*!< DES subkeys */ -} -des_context; - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \brief DES key schedule (56-bit, encryption) - * - * \param ctx DES context to be initialized - * \param key 8-byte secret key - */ -void des_setkey_enc( des_context *ctx, unsigned char key[8] ); - -/** - * \brief DES key schedule (56-bit, decryption) - * - * \param ctx DES context to be initialized - * \param key 8-byte secret key - */ -void des_setkey_dec( des_context *ctx, unsigned char key[8] ); - -/** - * \brief DES-ECB block encryption/decryption - * - * \param ctx DES context - * \param input 64-bit input block - * \param output 64-bit output block - */ -void des_crypt_ecb( des_context *ctx, - const unsigned char input[8], - unsigned char output[8] ); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_INCLUDED_POLARSSL_DES_H */ - -#endif /* LWIP_INCLUDED_POLARSSL_DES */ diff --git a/core/c/include/netif/ppp/polarssl/md4.h b/core/c/include/netif/ppp/polarssl/md4.h deleted file mode 100755 index 2262995..0000000 --- a/core/c/include/netif/ppp/polarssl/md4.h +++ /dev/null @@ -1,97 +0,0 @@ -/** - * \file md4.h - * - * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine - * - * Copyright (C) 2009 Paul Bakker - * - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the names of PolarSSL or XySSL nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "netif/ppp/ppp_opts.h" -#if LWIP_INCLUDED_POLARSSL_MD4 - -#ifndef LWIP_INCLUDED_POLARSSL_MD4_H -#define LWIP_INCLUDED_POLARSSL_MD4_H - -/** - * \brief MD4 context structure - */ -typedef struct -{ - unsigned long total[2]; /*!< number of bytes processed */ - unsigned long state[4]; /*!< intermediate digest state */ - unsigned char buffer[64]; /*!< data block being processed */ -} -md4_context; - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \brief MD4 context setup - * - * \param ctx context to be initialized - */ -void md4_starts( md4_context *ctx ); - -/** - * \brief MD4 process buffer - * - * \param ctx MD4 context - * \param input buffer holding the data - * \param ilen length of the input data - */ -void md4_update( md4_context *ctx, const unsigned char *input, int ilen ); - -/** - * \brief MD4 final digest - * - * \param ctx MD4 context - * \param output MD4 checksum result - */ -void md4_finish( md4_context *ctx, unsigned char output[16] ); - -/** - * \brief Output = MD4( input buffer ) - * - * \param input buffer holding the data - * \param ilen length of the input data - * \param output MD4 checksum result - */ -void md4( unsigned char *input, int ilen, unsigned char output[16] ); - - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_INCLUDED_POLARSSL_MD4_H */ - -#endif /* LWIP_INCLUDED_POLARSSL_MD4 */ diff --git a/core/c/include/netif/ppp/polarssl/md5.h b/core/c/include/netif/ppp/polarssl/md5.h deleted file mode 100755 index 3059e1d..0000000 --- a/core/c/include/netif/ppp/polarssl/md5.h +++ /dev/null @@ -1,96 +0,0 @@ -/** - * \file md5.h - * - * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine - * - * Copyright (C) 2009 Paul Bakker - * - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the names of PolarSSL or XySSL nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "netif/ppp/ppp_opts.h" -#if LWIP_INCLUDED_POLARSSL_MD5 - -#ifndef LWIP_INCLUDED_POLARSSL_MD5_H -#define LWIP_INCLUDED_POLARSSL_MD5_H - -/** - * \brief MD5 context structure - */ -typedef struct -{ - unsigned long total[2]; /*!< number of bytes processed */ - unsigned long state[4]; /*!< intermediate digest state */ - unsigned char buffer[64]; /*!< data block being processed */ -} -md5_context; - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \brief MD5 context setup - * - * \param ctx context to be initialized - */ -void md5_starts( md5_context *ctx ); - -/** - * \brief MD5 process buffer - * - * \param ctx MD5 context - * \param input buffer holding the data - * \param ilen length of the input data - */ -void md5_update( md5_context *ctx, const unsigned char *input, int ilen ); - -/** - * \brief MD5 final digest - * - * \param ctx MD5 context - * \param output MD5 checksum result - */ -void md5_finish( md5_context *ctx, unsigned char output[16] ); - -/** - * \brief Output = MD5( input buffer ) - * - * \param input buffer holding the data - * \param ilen length of the input data - * \param output MD5 checksum result - */ -void md5( unsigned char *input, int ilen, unsigned char output[16] ); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_INCLUDED_POLARSSL_MD5_H */ - -#endif /* LWIP_INCLUDED_POLARSSL_MD5 */ diff --git a/core/c/include/netif/ppp/polarssl/sha1.h b/core/c/include/netif/ppp/polarssl/sha1.h deleted file mode 100755 index 6d2a76e..0000000 --- a/core/c/include/netif/ppp/polarssl/sha1.h +++ /dev/null @@ -1,96 +0,0 @@ -/** - * \file sha1.h - * - * Based on XySSL: Copyright (C) 2006-2008 Christophe Devine - * - * Copyright (C) 2009 Paul Bakker - * - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * * Neither the names of PolarSSL or XySSL nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS - * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "netif/ppp/ppp_opts.h" -#if LWIP_INCLUDED_POLARSSL_SHA1 - -#ifndef LWIP_INCLUDED_POLARSSL_SHA1_H -#define LWIP_INCLUDED_POLARSSL_SHA1_H - -/** - * \brief SHA-1 context structure - */ -typedef struct -{ - unsigned long total[2]; /*!< number of bytes processed */ - unsigned long state[5]; /*!< intermediate digest state */ - unsigned char buffer[64]; /*!< data block being processed */ -} -sha1_context; - -#ifdef __cplusplus -extern "C" { -#endif - -/** - * \brief SHA-1 context setup - * - * \param ctx context to be initialized - */ -void sha1_starts( sha1_context *ctx ); - -/** - * \brief SHA-1 process buffer - * - * \param ctx SHA-1 context - * \param input buffer holding the data - * \param ilen length of the input data - */ -void sha1_update( sha1_context *ctx, const unsigned char *input, int ilen ); - -/** - * \brief SHA-1 final digest - * - * \param ctx SHA-1 context - * \param output SHA-1 checksum result - */ -void sha1_finish( sha1_context *ctx, unsigned char output[20] ); - -/** - * \brief Output = SHA-1( input buffer ) - * - * \param input buffer holding the data - * \param ilen length of the input data - * \param output SHA-1 checksum result - */ -void sha1( unsigned char *input, int ilen, unsigned char output[20] ); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_INCLUDED_POLARSSL_SHA1_H */ - -#endif /* LWIP_INCLUDED_POLARSSL_SHA1 */ diff --git a/core/c/include/netif/ppp/ppp.h b/core/c/include/netif/ppp/ppp.h deleted file mode 100755 index 3595b7b..0000000 --- a/core/c/include/netif/ppp/ppp.h +++ /dev/null @@ -1,698 +0,0 @@ -/***************************************************************************** -* ppp.h - Network Point to Point Protocol header file. -* -* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. -* portions Copyright (c) 1997 Global Election Systems Inc. -* -* The authors hereby grant permission to use, copy, modify, distribute, -* and license this software and its documentation for any purpose, provided -* that existing copyright notices are retained in all copies and that this -* notice and the following disclaimer are included verbatim in any -* distributions. No written agreement, license, or royalty fee is required -* for any of the authorized uses. -* -* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR -* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES -* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. -* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -* -****************************************************************************** -* REVISION HISTORY -* -* 03-01-01 Marc Boucher -* Ported to lwIP. -* 97-11-05 Guy Lancaster , Global Election Systems Inc. -* Original derived from BSD codes. -*****************************************************************************/ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef PPP_H -#define PPP_H - -#include "lwip/def.h" -#include "lwip/stats.h" -#include "lwip/mem.h" -#include "lwip/netif.h" -#include "lwip/sys.h" -#include "lwip/timeouts.h" -#if PPP_IPV6_SUPPORT -#include "lwip/ip6_addr.h" -#endif /* PPP_IPV6_SUPPORT */ - -#ifdef __cplusplus -extern "C" { -#endif - -/* Disable non-working or rarely used PPP feature, so rarely that we don't want to bloat ppp_opts.h with them */ -#ifndef PPP_OPTIONS -#define PPP_OPTIONS 0 -#endif - -#ifndef PPP_NOTIFY -#define PPP_NOTIFY 0 -#endif - -#ifndef PPP_REMOTENAME -#define PPP_REMOTENAME 0 -#endif - -#ifndef PPP_IDLETIMELIMIT -#define PPP_IDLETIMELIMIT 0 -#endif - -#ifndef PPP_LCP_ADAPTIVE -#define PPP_LCP_ADAPTIVE 0 -#endif - -#ifndef PPP_MAXCONNECT -#define PPP_MAXCONNECT 0 -#endif - -#ifndef PPP_ALLOWED_ADDRS -#define PPP_ALLOWED_ADDRS 0 -#endif - -#ifndef PPP_PROTOCOLNAME -#define PPP_PROTOCOLNAME 0 -#endif - -#ifndef PPP_STATS_SUPPORT -#define PPP_STATS_SUPPORT 0 -#endif - -#ifndef DEFLATE_SUPPORT -#define DEFLATE_SUPPORT 0 -#endif - -#ifndef BSDCOMPRESS_SUPPORT -#define BSDCOMPRESS_SUPPORT 0 -#endif - -#ifndef PREDICTOR_SUPPORT -#define PREDICTOR_SUPPORT 0 -#endif - -/************************* -*** PUBLIC DEFINITIONS *** -*************************/ - -/* - * The basic PPP frame. - */ -#define PPP_HDRLEN 4 /* octets for standard ppp header */ -#define PPP_FCSLEN 2 /* octets for FCS */ - -/* - * Values for phase. - */ -#define PPP_PHASE_DEAD 0 -#define PPP_PHASE_MASTER 1 -#define PPP_PHASE_HOLDOFF 2 -#define PPP_PHASE_INITIALIZE 3 -#define PPP_PHASE_SERIALCONN 4 -#define PPP_PHASE_DORMANT 5 -#define PPP_PHASE_ESTABLISH 6 -#define PPP_PHASE_AUTHENTICATE 7 -#define PPP_PHASE_CALLBACK 8 -#define PPP_PHASE_NETWORK 9 -#define PPP_PHASE_RUNNING 10 -#define PPP_PHASE_TERMINATE 11 -#define PPP_PHASE_DISCONNECT 12 - -/* Error codes. */ -#define PPPERR_NONE 0 /* No error. */ -#define PPPERR_PARAM 1 /* Invalid parameter. */ -#define PPPERR_OPEN 2 /* Unable to open PPP session. */ -#define PPPERR_DEVICE 3 /* Invalid I/O device for PPP. */ -#define PPPERR_ALLOC 4 /* Unable to allocate resources. */ -#define PPPERR_USER 5 /* User interrupt. */ -#define PPPERR_CONNECT 6 /* Connection lost. */ -#define PPPERR_AUTHFAIL 7 /* Failed authentication challenge. */ -#define PPPERR_PROTOCOL 8 /* Failed to meet protocol. */ -#define PPPERR_PEERDEAD 9 /* Connection timeout */ -#define PPPERR_IDLETIMEOUT 10 /* Idle Timeout */ -#define PPPERR_CONNECTTIME 11 /* Max connect time reached */ -#define PPPERR_LOOPBACK 12 /* Loopback detected */ - -/* Whether auth support is enabled at all */ -#define PPP_AUTH_SUPPORT (PAP_SUPPORT || CHAP_SUPPORT || EAP_SUPPORT) - -/************************ -*** PUBLIC DATA TYPES *** -************************/ - -/* - * Other headers require ppp_pcb definition for prototypes, but ppp_pcb - * require some structure definition from other headers as well, we are - * fixing the dependency loop here by declaring the ppp_pcb type then - * by including headers containing necessary struct definition for ppp_pcb - */ -typedef struct ppp_pcb_s ppp_pcb; - -/* Type definitions for BSD code. */ -#ifndef __u_char_defined -typedef unsigned long u_long; -typedef unsigned int u_int; -typedef unsigned short u_short; -typedef unsigned char u_char; -#endif - -#include "fsm.h" -#include "lcp.h" -#if CCP_SUPPORT -#include "ccp.h" -#endif /* CCP_SUPPORT */ -#if MPPE_SUPPORT -#include "mppe.h" -#endif /* MPPE_SUPPORT */ -#if PPP_IPV4_SUPPORT -#include "ipcp.h" -#endif /* PPP_IPV4_SUPPORT */ -#if PPP_IPV6_SUPPORT -#include "ipv6cp.h" -#endif /* PPP_IPV6_SUPPORT */ -#if PAP_SUPPORT -#include "upap.h" -#endif /* PAP_SUPPORT */ -#if CHAP_SUPPORT -#include "chap-new.h" -#endif /* CHAP_SUPPORT */ -#if EAP_SUPPORT -#include "eap.h" -#endif /* EAP_SUPPORT */ -#if VJ_SUPPORT -#include "vj.h" -#endif /* VJ_SUPPORT */ - -/* Link status callback function prototype */ -typedef void (*ppp_link_status_cb_fn)(ppp_pcb *pcb, int err_code, void *ctx); - -/* - * PPP configuration. - */ -typedef struct ppp_settings_s { - -#if PPP_SERVER && PPP_AUTH_SUPPORT - unsigned int auth_required :1; /* Peer is required to authenticate */ - unsigned int null_login :1; /* Username of "" and a password of "" are acceptable */ -#endif /* PPP_SERVER && PPP_AUTH_SUPPORT */ -#if PPP_REMOTENAME - unsigned int explicit_remote :1; /* remote_name specified with remotename opt */ -#endif /* PPP_REMOTENAME */ -#if PAP_SUPPORT - unsigned int refuse_pap :1; /* Don't proceed auth. with PAP */ -#endif /* PAP_SUPPORT */ -#if CHAP_SUPPORT - unsigned int refuse_chap :1; /* Don't proceed auth. with CHAP */ -#endif /* CHAP_SUPPORT */ -#if MSCHAP_SUPPORT - unsigned int refuse_mschap :1; /* Don't proceed auth. with MS-CHAP */ - unsigned int refuse_mschap_v2 :1; /* Don't proceed auth. with MS-CHAPv2 */ -#endif /* MSCHAP_SUPPORT */ -#if EAP_SUPPORT - unsigned int refuse_eap :1; /* Don't proceed auth. with EAP */ -#endif /* EAP_SUPPORT */ -#if LWIP_DNS - unsigned int usepeerdns :1; /* Ask peer for DNS adds */ -#endif /* LWIP_DNS */ - unsigned int persist :1; /* Persist mode, always try to open the connection */ -#if PRINTPKT_SUPPORT - unsigned int hide_password :1; /* Hide password in dumped packets */ -#endif /* PRINTPKT_SUPPORT */ - unsigned int noremoteip :1; /* Let him have no IP address */ - unsigned int lax_recv :1; /* accept control chars in asyncmap */ - unsigned int noendpoint :1; /* don't send/accept endpoint discriminator */ -#if PPP_LCP_ADAPTIVE - unsigned int lcp_echo_adaptive :1; /* request echo only if the link was idle */ -#endif /* PPP_LCP_ADAPTIVE */ -#if MPPE_SUPPORT - unsigned int require_mppe :1; /* Require MPPE (Microsoft Point to Point Encryption) */ - unsigned int refuse_mppe_40 :1; /* Allow MPPE 40-bit mode? */ - unsigned int refuse_mppe_128 :1; /* Allow MPPE 128-bit mode? */ - unsigned int refuse_mppe_stateful :1; /* Allow MPPE stateful mode? */ -#endif /* MPPE_SUPPORT */ - - u16_t listen_time; /* time to listen first (ms), waiting for peer to send LCP packet */ - -#if PPP_IDLETIMELIMIT - u16_t idle_time_limit; /* Disconnect if idle for this many seconds */ -#endif /* PPP_IDLETIMELIMIT */ -#if PPP_MAXCONNECT - u32_t maxconnect; /* Maximum connect time (seconds) */ -#endif /* PPP_MAXCONNECT */ - -#if PPP_AUTH_SUPPORT - /* auth data */ - const char *user; /* Username for PAP */ - const char *passwd; /* Password for PAP, secret for CHAP */ -#if PPP_REMOTENAME - char remote_name[MAXNAMELEN + 1]; /* Peer's name for authentication */ -#endif /* PPP_REMOTENAME */ - -#if PAP_SUPPORT - u8_t pap_timeout_time; /* Timeout (seconds) for auth-req retrans. */ - u8_t pap_max_transmits; /* Number of auth-reqs sent */ -#if PPP_SERVER - u8_t pap_req_timeout; /* Time to wait for auth-req from peer */ -#endif /* PPP_SERVER */ -#endif /* PAP_SUPPPORT */ - -#if CHAP_SUPPORT - u8_t chap_timeout_time; /* Timeout (seconds) for retransmitting req */ - u8_t chap_max_transmits; /* max # times to send challenge */ -#if PPP_SERVER - u8_t chap_rechallenge_time; /* Time to wait for auth-req from peer */ -#endif /* PPP_SERVER */ -#endif /* CHAP_SUPPPORT */ - -#if EAP_SUPPORT - u8_t eap_req_time; /* Time to wait (for retransmit/fail) */ - u8_t eap_allow_req; /* Max Requests allowed */ -#if PPP_SERVER - u8_t eap_timeout_time; /* Time to wait (for retransmit/fail) */ - u8_t eap_max_transmits; /* Max Requests allowed */ -#endif /* PPP_SERVER */ -#endif /* EAP_SUPPORT */ - -#endif /* PPP_AUTH_SUPPORT */ - - u8_t fsm_timeout_time; /* Timeout time in seconds */ - u8_t fsm_max_conf_req_transmits; /* Maximum Configure-Request transmissions */ - u8_t fsm_max_term_transmits; /* Maximum Terminate-Request transmissions */ - u8_t fsm_max_nak_loops; /* Maximum number of nak loops tolerated */ - - u8_t lcp_loopbackfail; /* Number of times we receive our magic number from the peer - before deciding the link is looped-back. */ - u8_t lcp_echo_interval; /* Interval between LCP echo-requests */ - u8_t lcp_echo_fails; /* Tolerance to unanswered echo-requests */ - -} ppp_settings; - -#if PPP_SERVER -struct ppp_addrs { -#if PPP_IPV4_SUPPORT - ip4_addr_t our_ipaddr, his_ipaddr, netmask; -#if LWIP_DNS - ip4_addr_t dns1, dns2; -#endif /* LWIP_DNS */ -#endif /* PPP_IPV4_SUPPORT */ -#if PPP_IPV6_SUPPORT - ip6_addr_t our6_ipaddr, his6_ipaddr; -#endif /* PPP_IPV6_SUPPORT */ -}; -#endif /* PPP_SERVER */ - -/* - * PPP interface control block. - */ -struct ppp_pcb_s { - ppp_settings settings; - const struct link_callbacks *link_cb; - void *link_ctx_cb; - void (*link_status_cb)(ppp_pcb *pcb, int err_code, void *ctx); /* Status change callback */ -#if PPP_NOTIFY_PHASE - void (*notify_phase_cb)(ppp_pcb *pcb, u8_t phase, void *ctx); /* Notify phase callback */ -#endif /* PPP_NOTIFY_PHASE */ - void *ctx_cb; /* Callbacks optional pointer */ - struct netif *netif; /* PPP interface */ - u8_t phase; /* where the link is at */ - u8_t err_code; /* Code indicating why interface is down. */ - - /* flags */ -#if PPP_IPV4_SUPPORT - unsigned int ask_for_local :1; /* request our address from peer */ - unsigned int ipcp_is_open :1; /* haven't called np_finished() */ - unsigned int ipcp_is_up :1; /* have called ipcp_up() */ - unsigned int if4_up :1; /* True when the IPv4 interface is up. */ -#if 0 /* UNUSED - PROXY ARP */ - unsigned int proxy_arp_set :1; /* Have created proxy arp entry */ -#endif /* UNUSED - PROXY ARP */ -#endif /* PPP_IPV4_SUPPORT */ -#if PPP_IPV6_SUPPORT - unsigned int ipv6cp_is_up :1; /* have called ip6cp_up() */ - unsigned int if6_up :1; /* True when the IPv6 interface is up. */ -#endif /* PPP_IPV6_SUPPORT */ - unsigned int lcp_echo_timer_running :1; /* set if a timer is running */ -#if VJ_SUPPORT - unsigned int vj_enabled :1; /* Flag indicating VJ compression enabled. */ -#endif /* VJ_SUPPORT */ -#if CCP_SUPPORT - unsigned int ccp_all_rejected :1; /* we rejected all peer's options */ -#endif /* CCP_SUPPORT */ -#if MPPE_SUPPORT - unsigned int mppe_keys_set :1; /* Have the MPPE keys been set? */ -#endif /* MPPE_SUPPORT */ - -#if PPP_AUTH_SUPPORT - /* auth data */ -#if PPP_SERVER && defined(HAVE_MULTILINK) - char peer_authname[MAXNAMELEN + 1]; /* The name by which the peer authenticated itself to us. */ -#endif /* PPP_SERVER && defined(HAVE_MULTILINK) */ - u16_t auth_pending; /* Records which authentication operations haven't completed yet. */ - u16_t auth_done; /* Records which authentication operations have been completed. */ - -#if PAP_SUPPORT - upap_state upap; /* PAP data */ -#endif /* PAP_SUPPORT */ - -#if CHAP_SUPPORT - chap_client_state chap_client; /* CHAP client data */ -#if PPP_SERVER - chap_server_state chap_server; /* CHAP server data */ -#endif /* PPP_SERVER */ -#endif /* CHAP_SUPPORT */ - -#if EAP_SUPPORT - eap_state eap; /* EAP data */ -#endif /* EAP_SUPPORT */ -#endif /* PPP_AUTH_SUPPORT */ - - fsm lcp_fsm; /* LCP fsm structure */ - lcp_options lcp_wantoptions; /* Options that we want to request */ - lcp_options lcp_gotoptions; /* Options that peer ack'd */ - lcp_options lcp_allowoptions; /* Options we allow peer to request */ - lcp_options lcp_hisoptions; /* Options that we ack'd */ - u16_t peer_mru; /* currently negotiated peer MRU */ - u8_t lcp_echos_pending; /* Number of outstanding echo msgs */ - u8_t lcp_echo_number; /* ID number of next echo frame */ - - u8_t num_np_open; /* Number of network protocols which we have opened. */ - u8_t num_np_up; /* Number of network protocols which have come up. */ - -#if VJ_SUPPORT - struct vjcompress vj_comp; /* Van Jacobson compression header. */ -#endif /* VJ_SUPPORT */ - -#if CCP_SUPPORT - fsm ccp_fsm; /* CCP fsm structure */ - ccp_options ccp_wantoptions; /* what to request the peer to use */ - ccp_options ccp_gotoptions; /* what the peer agreed to do */ - ccp_options ccp_allowoptions; /* what we'll agree to do */ - ccp_options ccp_hisoptions; /* what we agreed to do */ - u8_t ccp_localstate; /* Local state (mainly for handling reset-reqs and reset-acks). */ - u8_t ccp_receive_method; /* Method chosen on receive path */ - u8_t ccp_transmit_method; /* Method chosen on transmit path */ -#if MPPE_SUPPORT - ppp_mppe_state mppe_comp; /* MPPE "compressor" structure */ - ppp_mppe_state mppe_decomp; /* MPPE "decompressor" structure */ -#endif /* MPPE_SUPPORT */ -#endif /* CCP_SUPPORT */ - -#if PPP_IPV4_SUPPORT - fsm ipcp_fsm; /* IPCP fsm structure */ - ipcp_options ipcp_wantoptions; /* Options that we want to request */ - ipcp_options ipcp_gotoptions; /* Options that peer ack'd */ - ipcp_options ipcp_allowoptions; /* Options we allow peer to request */ - ipcp_options ipcp_hisoptions; /* Options that we ack'd */ -#endif /* PPP_IPV4_SUPPORT */ - -#if PPP_IPV6_SUPPORT - fsm ipv6cp_fsm; /* IPV6CP fsm structure */ - ipv6cp_options ipv6cp_wantoptions; /* Options that we want to request */ - ipv6cp_options ipv6cp_gotoptions; /* Options that peer ack'd */ - ipv6cp_options ipv6cp_allowoptions; /* Options we allow peer to request */ - ipv6cp_options ipv6cp_hisoptions; /* Options that we ack'd */ -#endif /* PPP_IPV6_SUPPORT */ -}; - -/************************ - *** PUBLIC FUNCTIONS *** - ************************/ - -/* - * WARNING: For multi-threads environment, all ppp_set_* functions most - * only be called while the PPP is in the dead phase (i.e. disconnected). - */ - -#if PPP_AUTH_SUPPORT -/* - * Set PPP authentication. - * - * Warning: Using PPPAUTHTYPE_ANY might have security consequences. - * RFC 1994 says: - * - * In practice, within or associated with each PPP server, there is a - * database which associates "user" names with authentication - * information ("secrets"). It is not anticipated that a particular - * named user would be authenticated by multiple methods. This would - * make the user vulnerable to attacks which negotiate the least secure - * method from among a set (such as PAP rather than CHAP). If the same - * secret was used, PAP would reveal the secret to be used later with - * CHAP. - * - * Instead, for each user name there should be an indication of exactly - * one method used to authenticate that user name. If a user needs to - * make use of different authentication methods under different - * circumstances, then distinct user names SHOULD be employed, each of - * which identifies exactly one authentication method. - * - * Default is none auth type, unset (NULL) user and passwd. - */ -#define PPPAUTHTYPE_NONE 0x00 -#define PPPAUTHTYPE_PAP 0x01 -#define PPPAUTHTYPE_CHAP 0x02 -#define PPPAUTHTYPE_MSCHAP 0x04 -#define PPPAUTHTYPE_MSCHAP_V2 0x08 -#define PPPAUTHTYPE_EAP 0x10 -#define PPPAUTHTYPE_ANY 0xff -void ppp_set_auth(ppp_pcb *pcb, u8_t authtype, const char *user, const char *passwd); - -/* - * If set, peer is required to authenticate. This is mostly necessary for PPP server support. - * - * Default is false. - */ -#define ppp_set_auth_required(ppp, boolval) (ppp->settings.auth_required = boolval) -#endif /* PPP_AUTH_SUPPORT */ - -#if PPP_IPV4_SUPPORT -/* - * Set PPP interface "our" and "his" IPv4 addresses. This is mostly necessary for PPP server - * support but it can also be used on a PPP link where each side choose its own IP address. - * - * Default is unset (0.0.0.0). - */ -#define ppp_set_ipcp_ouraddr(ppp, addr) do { ppp->ipcp_wantoptions.ouraddr = ip4_addr_get_u32(addr); \ - ppp->ask_for_local = ppp->ipcp_wantoptions.ouraddr != 0; } while(0) -#define ppp_set_ipcp_hisaddr(ppp, addr) (ppp->ipcp_wantoptions.hisaddr = ip4_addr_get_u32(addr)) -#if LWIP_DNS -/* - * Set DNS server addresses that are sent if the peer asks for them. This is mostly necessary - * for PPP server support. - * - * Default is unset (0.0.0.0). - */ -#define ppp_set_ipcp_dnsaddr(ppp, index, addr) (ppp->ipcp_allowoptions.dnsaddr[index] = ip4_addr_get_u32(addr)) - -/* - * If set, we ask the peer for up to 2 DNS server addresses. Received DNS server addresses are - * registered using the dns_setserver() function. - * - * Default is false. - */ -#define ppp_set_usepeerdns(ppp, boolval) (ppp->settings.usepeerdns = boolval) -#endif /* LWIP_DNS */ -#endif /* PPP_IPV4_SUPPORT */ - -#if MPPE_SUPPORT -/* Disable MPPE (Microsoft Point to Point Encryption). This parameter is exclusive. */ -#define PPP_MPPE_DISABLE 0x00 -/* Require the use of MPPE (Microsoft Point to Point Encryption). */ -#define PPP_MPPE_ENABLE 0x01 -/* Allow MPPE to use stateful mode. Stateless mode is still attempted first. */ -#define PPP_MPPE_ALLOW_STATEFUL 0x02 -/* Refuse the use of MPPE with 40-bit encryption. Conflict with PPP_MPPE_REFUSE_128. */ -#define PPP_MPPE_REFUSE_40 0x04 -/* Refuse the use of MPPE with 128-bit encryption. Conflict with PPP_MPPE_REFUSE_40. */ -#define PPP_MPPE_REFUSE_128 0x08 -/* - * Set MPPE configuration - * - * Default is disabled. - */ -void ppp_set_mppe(ppp_pcb *pcb, u8_t flags); -#endif /* MPPE_SUPPORT */ - -/* - * Wait for up to intval milliseconds for a valid PPP packet from the peer. - * At the end of this time, or when a valid PPP packet is received from the - * peer, we commence negotiation by sending our first LCP packet. - * - * Default is 0. - */ -#define ppp_set_listen_time(ppp, intval) (ppp->settings.listen_time = intval) - -/* - * If set, we will attempt to initiate a connection but if no reply is received from - * the peer, we will then just wait passively for a valid LCP packet from the peer. - * - * Default is false. - */ -#define ppp_set_passive(ppp, boolval) (ppp->lcp_wantoptions.passive = boolval) - -/* - * If set, we will not transmit LCP packets to initiate a connection until a valid - * LCP packet is received from the peer. This is what we usually call the server mode. - * - * Default is false. - */ -#define ppp_set_silent(ppp, boolval) (ppp->lcp_wantoptions.silent = boolval) - -/* - * If set, enable protocol field compression negotiation in both the receive and - * the transmit direction. - * - * Default is true. - */ -#define ppp_set_neg_pcomp(ppp, boolval) (ppp->lcp_wantoptions.neg_pcompression = \ - ppp->lcp_allowoptions.neg_pcompression = boolval) - -/* - * If set, enable Address/Control compression in both the receive and the transmit - * direction. - * - * Default is true. - */ -#define ppp_set_neg_accomp(ppp, boolval) (ppp->lcp_wantoptions.neg_accompression = \ - ppp->lcp_allowoptions.neg_accompression = boolval) - -/* - * If set, enable asyncmap negotiation. Otherwise forcing all control characters to - * be escaped for both the transmit and the receive direction. - * - * Default is true. - */ -#define ppp_set_neg_asyncmap(ppp, boolval) (ppp->lcp_wantoptions.neg_asyncmap = \ - ppp->lcp_allowoptions.neg_asyncmap = boolval) - -/* - * This option sets the Async-Control-Character-Map (ACCM) for this end of the link. - * The ACCM is a set of 32 bits, one for each of the ASCII control characters with - * values from 0 to 31, where a 1 bit indicates that the corresponding control - * character should not be used in PPP packets sent to this system. The map is - * an unsigned 32 bits integer where the least significant bit (00000001) represents - * character 0 and the most significant bit (80000000) represents character 31. - * We will then ask the peer to send these characters as a 2-byte escape sequence. - * - * Default is 0. - */ -#define ppp_set_asyncmap(ppp, intval) (ppp->lcp_wantoptions.asyncmap = intval) - -/* - * Set a PPP interface as the default network interface - * (used to output all packets for which no specific route is found). - */ -#define ppp_set_default(ppp) netif_set_default(ppp->netif) - -#if PPP_NOTIFY_PHASE -/* - * Set a PPP notify phase callback. - * - * This can be used for example to set a LED pattern depending on the - * current phase of the PPP session. - */ -typedef void (*ppp_notify_phase_cb_fn)(ppp_pcb *pcb, u8_t phase, void *ctx); -void ppp_set_notify_phase_callback(ppp_pcb *pcb, ppp_notify_phase_cb_fn notify_phase_cb); -#endif /* PPP_NOTIFY_PHASE */ - -/* - * Initiate a PPP connection. - * - * This can only be called if PPP is in the dead phase. - * - * Holdoff is the time to wait (in seconds) before initiating - * the connection. - * - * If this port connects to a modem, the modem connection must be - * established before calling this. - */ -err_t ppp_connect(ppp_pcb *pcb, u16_t holdoff); - -#if PPP_SERVER -/* - * Listen for an incoming PPP connection. - * - * This can only be called if PPP is in the dead phase. - * - * If this port connects to a modem, the modem connection must be - * established before calling this. - */ -err_t ppp_listen(ppp_pcb *pcb); -#endif /* PPP_SERVER */ - -/* - * Initiate the end of a PPP connection. - * Any outstanding packets in the queues are dropped. - * - * Setting nocarrier to 1 close the PPP connection without initiating the - * shutdown procedure. Always using nocarrier = 0 is still recommended, - * this is going to take a little longer time if your link is down, but - * is a safer choice for the PPP state machine. - * - * Return 0 on success, an error code on failure. - */ -err_t ppp_close(ppp_pcb *pcb, u8_t nocarrier); - -/* - * Release the control block. - * - * This can only be called if PPP is in the dead phase. - * - * You must use ppp_close() before if you wish to terminate - * an established PPP session. - * - * Return 0 on success, an error code on failure. - */ -err_t ppp_free(ppp_pcb *pcb); - -/* - * PPP IOCTL commands. - * - * Get the up status - 0 for down, non-zero for up. The argument must - * point to an int. - */ -#define PPPCTLG_UPSTATUS 0 - -/* - * Get the PPP error code. The argument must point to an int. - * Returns a PPPERR_* value. - */ -#define PPPCTLG_ERRCODE 1 - -/* - * Get the fd associated with a PPP over serial - */ -#define PPPCTLG_FD 2 - -/* - * Get and set parameters for the given connection. - * Return 0 on success, an error code on failure. - */ -err_t ppp_ioctl(ppp_pcb *pcb, u8_t cmd, void *arg); - -/* Get the PPP netif interface */ -#define ppp_netif(ppp) (ppp->netif) - -/* Set an lwIP-style status-callback for the selected PPP device */ -#define ppp_set_netif_statuscallback(ppp, status_cb) \ - netif_set_status_callback(ppp->netif, status_cb); - -/* Set an lwIP-style link-callback for the selected PPP device */ -#define ppp_set_netif_linkcallback(ppp, link_cb) \ - netif_set_link_callback(ppp->netif, link_cb); - -#ifdef __cplusplus -} -#endif - -#endif /* PPP_H */ - -#endif /* PPP_SUPPORT */ diff --git a/core/c/include/netif/ppp/ppp_impl.h b/core/c/include/netif/ppp/ppp_impl.h deleted file mode 100755 index 280ff00..0000000 --- a/core/c/include/netif/ppp/ppp_impl.h +++ /dev/null @@ -1,722 +0,0 @@ -/***************************************************************************** -* ppp.h - Network Point to Point Protocol header file. -* -* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. -* portions Copyright (c) 1997 Global Election Systems Inc. -* -* The authors hereby grant permission to use, copy, modify, distribute, -* and license this software and its documentation for any purpose, provided -* that existing copyright notices are retained in all copies and that this -* notice and the following disclaimer are included verbatim in any -* distributions. No written agreement, license, or royalty fee is required -* for any of the authorized uses. -* -* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR -* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES -* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. -* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -* -****************************************************************************** -* REVISION HISTORY -* -* 03-01-01 Marc Boucher -* Ported to lwIP. -* 97-11-05 Guy Lancaster , Global Election Systems Inc. -* Original derived from BSD codes. -*****************************************************************************/ -#ifndef LWIP_HDR_PPP_IMPL_H -#define LWIP_HDR_PPP_IMPL_H - -#include "netif/ppp/ppp_opts.h" - -#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifdef PPP_INCLUDE_SETTINGS_HEADER -#include "ppp_settings.h" -#endif - -#include /* formats */ -#include -#include -#include /* strtol() */ - -#include "lwip/netif.h" -#include "lwip/def.h" -#include "lwip/timeouts.h" - -#include "ppp.h" -#include "pppdebug.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Memory used for control packets. - * - * PPP_CTRL_PBUF_MAX_SIZE is the amount of memory we allocate when we - * cannot figure out how much we are going to use before filling the buffer. - */ -#if PPP_USE_PBUF_RAM -#define PPP_CTRL_PBUF_TYPE PBUF_RAM -#define PPP_CTRL_PBUF_MAX_SIZE 512 -#else /* PPP_USE_PBUF_RAM */ -#define PPP_CTRL_PBUF_TYPE PBUF_POOL -#define PPP_CTRL_PBUF_MAX_SIZE PBUF_POOL_BUFSIZE -#endif /* PPP_USE_PBUF_RAM */ - -/* - * The basic PPP frame. - */ -#define PPP_ADDRESS(p) (((u_char *)(p))[0]) -#define PPP_CONTROL(p) (((u_char *)(p))[1]) -#define PPP_PROTOCOL(p) ((((u_char *)(p))[2] << 8) + ((u_char *)(p))[3]) - -/* - * Significant octet values. - */ -#define PPP_ALLSTATIONS 0xff /* All-Stations broadcast address */ -#define PPP_UI 0x03 /* Unnumbered Information */ -#define PPP_FLAG 0x7e /* Flag Sequence */ -#define PPP_ESCAPE 0x7d /* Asynchronous Control Escape */ -#define PPP_TRANS 0x20 /* Asynchronous transparency modifier */ - -/* - * Protocol field values. - */ -#define PPP_IP 0x21 /* Internet Protocol */ -#if 0 /* UNUSED */ -#define PPP_AT 0x29 /* AppleTalk Protocol */ -#define PPP_IPX 0x2b /* IPX protocol */ -#endif /* UNUSED */ -#if VJ_SUPPORT -#define PPP_VJC_COMP 0x2d /* VJ compressed TCP */ -#define PPP_VJC_UNCOMP 0x2f /* VJ uncompressed TCP */ -#endif /* VJ_SUPPORT */ -#if PPP_IPV6_SUPPORT -#define PPP_IPV6 0x57 /* Internet Protocol Version 6 */ -#endif /* PPP_IPV6_SUPPORT */ -#if CCP_SUPPORT -#define PPP_COMP 0xfd /* compressed packet */ -#endif /* CCP_SUPPORT */ -#define PPP_IPCP 0x8021 /* IP Control Protocol */ -#if 0 /* UNUSED */ -#define PPP_ATCP 0x8029 /* AppleTalk Control Protocol */ -#define PPP_IPXCP 0x802b /* IPX Control Protocol */ -#endif /* UNUSED */ -#if PPP_IPV6_SUPPORT -#define PPP_IPV6CP 0x8057 /* IPv6 Control Protocol */ -#endif /* PPP_IPV6_SUPPORT */ -#if CCP_SUPPORT -#define PPP_CCP 0x80fd /* Compression Control Protocol */ -#endif /* CCP_SUPPORT */ -#if ECP_SUPPORT -#define PPP_ECP 0x8053 /* Encryption Control Protocol */ -#endif /* ECP_SUPPORT */ -#define PPP_LCP 0xc021 /* Link Control Protocol */ -#if PAP_SUPPORT -#define PPP_PAP 0xc023 /* Password Authentication Protocol */ -#endif /* PAP_SUPPORT */ -#if LQR_SUPPORT -#define PPP_LQR 0xc025 /* Link Quality Report protocol */ -#endif /* LQR_SUPPORT */ -#if CHAP_SUPPORT -#define PPP_CHAP 0xc223 /* Cryptographic Handshake Auth. Protocol */ -#endif /* CHAP_SUPPORT */ -#if CBCP_SUPPORT -#define PPP_CBCP 0xc029 /* Callback Control Protocol */ -#endif /* CBCP_SUPPORT */ -#if EAP_SUPPORT -#define PPP_EAP 0xc227 /* Extensible Authentication Protocol */ -#endif /* EAP_SUPPORT */ - -/* - * The following struct gives the addresses of procedures to call - * for a particular lower link level protocol. - */ -struct link_callbacks { - /* Start a connection (e.g. Initiate discovery phase) */ - void (*connect) (ppp_pcb *pcb, void *ctx); -#if PPP_SERVER - /* Listen for an incoming connection (Passive mode) */ - void (*listen) (ppp_pcb *pcb, void *ctx); -#endif /* PPP_SERVER */ - /* End a connection (i.e. initiate disconnect phase) */ - void (*disconnect) (ppp_pcb *pcb, void *ctx); - /* Free lower protocol control block */ - err_t (*free) (ppp_pcb *pcb, void *ctx); - /* Write a pbuf to a ppp link, only used from PPP functions to send PPP packets. */ - err_t (*write)(ppp_pcb *pcb, void *ctx, struct pbuf *p); - /* Send a packet from lwIP core (IPv4 or IPv6) */ - err_t (*netif_output)(ppp_pcb *pcb, void *ctx, struct pbuf *p, u_short protocol); - /* configure the transmit-side characteristics of the PPP interface */ - void (*send_config)(ppp_pcb *pcb, void *ctx, u32_t accm, int pcomp, int accomp); - /* confire the receive-side characteristics of the PPP interface */ - void (*recv_config)(ppp_pcb *pcb, void *ctx, u32_t accm, int pcomp, int accomp); -}; - -/* - * What to do with network protocol (NP) packets. - */ -enum NPmode { - NPMODE_PASS, /* pass the packet through */ - NPMODE_DROP, /* silently drop the packet */ - NPMODE_ERROR, /* return an error */ - NPMODE_QUEUE /* save it up for later. */ -}; - -/* - * Statistics. - */ -#if PPP_STATS_SUPPORT -struct pppstat { - unsigned int ppp_ibytes; /* bytes received */ - unsigned int ppp_ipackets; /* packets received */ - unsigned int ppp_ierrors; /* receive errors */ - unsigned int ppp_obytes; /* bytes sent */ - unsigned int ppp_opackets; /* packets sent */ - unsigned int ppp_oerrors; /* transmit errors */ -}; - -#if VJ_SUPPORT -struct vjstat { - unsigned int vjs_packets; /* outbound packets */ - unsigned int vjs_compressed; /* outbound compressed packets */ - unsigned int vjs_searches; /* searches for connection state */ - unsigned int vjs_misses; /* times couldn't find conn. state */ - unsigned int vjs_uncompressedin; /* inbound uncompressed packets */ - unsigned int vjs_compressedin; /* inbound compressed packets */ - unsigned int vjs_errorin; /* inbound unknown type packets */ - unsigned int vjs_tossed; /* inbound packets tossed because of error */ -}; -#endif /* VJ_SUPPORT */ - -struct ppp_stats { - struct pppstat p; /* basic PPP statistics */ -#if VJ_SUPPORT - struct vjstat vj; /* VJ header compression statistics */ -#endif /* VJ_SUPPORT */ -}; - -#if CCP_SUPPORT -struct compstat { - unsigned int unc_bytes; /* total uncompressed bytes */ - unsigned int unc_packets; /* total uncompressed packets */ - unsigned int comp_bytes; /* compressed bytes */ - unsigned int comp_packets; /* compressed packets */ - unsigned int inc_bytes; /* incompressible bytes */ - unsigned int inc_packets; /* incompressible packets */ - unsigned int ratio; /* recent compression ratio << 8 */ -}; - -struct ppp_comp_stats { - struct compstat c; /* packet compression statistics */ - struct compstat d; /* packet decompression statistics */ -}; -#endif /* CCP_SUPPORT */ - -#endif /* PPP_STATS_SUPPORT */ - -#if PPP_IDLETIMELIMIT -/* - * The following structure records the time in seconds since - * the last NP packet was sent or received. - */ -struct ppp_idle { - time_t xmit_idle; /* time since last NP packet sent */ - time_t recv_idle; /* time since last NP packet received */ -}; -#endif /* PPP_IDLETIMELIMIT */ - -/* values for epdisc.class */ -#define EPD_NULL 0 /* null discriminator, no data */ -#define EPD_LOCAL 1 -#define EPD_IP 2 -#define EPD_MAC 3 -#define EPD_MAGIC 4 -#define EPD_PHONENUM 5 - -/* - * Global variables. - */ -#ifdef HAVE_MULTILINK -extern u8_t multilink; /* enable multilink operation */ -extern u8_t doing_multilink; -extern u8_t multilink_master; -extern u8_t bundle_eof; -extern u8_t bundle_terminating; -#endif - -#ifdef MAXOCTETS -extern unsigned int maxoctets; /* Maximum octetes per session (in bytes) */ -extern int maxoctets_dir; /* Direction : - 0 - in+out (default) - 1 - in - 2 - out - 3 - max(in,out) */ -extern int maxoctets_timeout; /* Timeout for check of octets limit */ -#define PPP_OCTETS_DIRECTION_SUM 0 -#define PPP_OCTETS_DIRECTION_IN 1 -#define PPP_OCTETS_DIRECTION_OUT 2 -#define PPP_OCTETS_DIRECTION_MAXOVERAL 3 -/* same as previos, but little different on RADIUS side */ -#define PPP_OCTETS_DIRECTION_MAXSESSION 4 -#endif - -/* Data input may be used by CCP and ECP, remove this entry - * from struct protent to save some flash - */ -#define PPP_DATAINPUT 0 - -/* - * The following struct gives the addresses of procedures to call - * for a particular protocol. - */ -struct protent { - u_short protocol; /* PPP protocol number */ - /* Initialization procedure */ - void (*init) (ppp_pcb *pcb); - /* Process a received packet */ - void (*input) (ppp_pcb *pcb, u_char *pkt, int len); - /* Process a received protocol-reject */ - void (*protrej) (ppp_pcb *pcb); - /* Lower layer has come up */ - void (*lowerup) (ppp_pcb *pcb); - /* Lower layer has gone down */ - void (*lowerdown) (ppp_pcb *pcb); - /* Open the protocol */ - void (*open) (ppp_pcb *pcb); - /* Close the protocol */ - void (*close) (ppp_pcb *pcb, const char *reason); -#if PRINTPKT_SUPPORT - /* Print a packet in readable form */ - int (*printpkt) (const u_char *pkt, int len, - void (*printer) (void *, const char *, ...), - void *arg); -#endif /* PRINTPKT_SUPPORT */ -#if PPP_DATAINPUT - /* Process a received data packet */ - void (*datainput) (ppp_pcb *pcb, u_char *pkt, int len); -#endif /* PPP_DATAINPUT */ -#if PRINTPKT_SUPPORT - const char *name; /* Text name of protocol */ - const char *data_name; /* Text name of corresponding data protocol */ -#endif /* PRINTPKT_SUPPORT */ -#if PPP_OPTIONS - option_t *options; /* List of command-line options */ - /* Check requested options, assign defaults */ - void (*check_options) (void); -#endif /* PPP_OPTIONS */ -#if DEMAND_SUPPORT - /* Configure interface for demand-dial */ - int (*demand_conf) (int unit); - /* Say whether to bring up link for this pkt */ - int (*active_pkt) (u_char *pkt, int len); -#endif /* DEMAND_SUPPORT */ -}; - -/* Table of pointers to supported protocols */ -extern const struct protent* const protocols[]; - - -/* Values for auth_pending, auth_done */ -#if PAP_SUPPORT -#define PAP_WITHPEER 0x1 -#define PAP_PEER 0x2 -#endif /* PAP_SUPPORT */ -#if CHAP_SUPPORT -#define CHAP_WITHPEER 0x4 -#define CHAP_PEER 0x8 -#endif /* CHAP_SUPPORT */ -#if EAP_SUPPORT -#define EAP_WITHPEER 0x10 -#define EAP_PEER 0x20 -#endif /* EAP_SUPPORT */ - -/* Values for auth_done only */ -#if CHAP_SUPPORT -#define CHAP_MD5_WITHPEER 0x40 -#define CHAP_MD5_PEER 0x80 -#if MSCHAP_SUPPORT -#define CHAP_MS_SHIFT 8 /* LSB position for MS auths */ -#define CHAP_MS_WITHPEER 0x100 -#define CHAP_MS_PEER 0x200 -#define CHAP_MS2_WITHPEER 0x400 -#define CHAP_MS2_PEER 0x800 -#endif /* MSCHAP_SUPPORT */ -#endif /* CHAP_SUPPORT */ - -/* Supported CHAP protocols */ -#if CHAP_SUPPORT - -#if MSCHAP_SUPPORT -#define CHAP_MDTYPE_SUPPORTED (MDTYPE_MICROSOFT_V2 | MDTYPE_MICROSOFT | MDTYPE_MD5) -#else /* MSCHAP_SUPPORT */ -#define CHAP_MDTYPE_SUPPORTED (MDTYPE_MD5) -#endif /* MSCHAP_SUPPORT */ - -#else /* CHAP_SUPPORT */ -#define CHAP_MDTYPE_SUPPORTED (MDTYPE_NONE) -#endif /* CHAP_SUPPORT */ - -#if PPP_STATS_SUPPORT -/* - * PPP statistics structure - */ -struct pppd_stats { - unsigned int bytes_in; - unsigned int bytes_out; - unsigned int pkts_in; - unsigned int pkts_out; -}; -#endif /* PPP_STATS_SUPPORT */ - - -/* - * PPP private functions - */ - - -/* - * Functions called from lwIP core. - */ - -/* initialize the PPP subsystem */ -int ppp_init(void); - -/* - * Functions called from PPP link protocols. - */ - -/* Create a new PPP control block */ -ppp_pcb *ppp_new(struct netif *pppif, const struct link_callbacks *callbacks, void *link_ctx_cb, - ppp_link_status_cb_fn link_status_cb, void *ctx_cb); - -/* Initiate LCP open request */ -void ppp_start(ppp_pcb *pcb); - -/* Called when link failed to setup */ -void ppp_link_failed(ppp_pcb *pcb); - -/* Called when link is normally down (i.e. it was asked to end) */ -void ppp_link_end(ppp_pcb *pcb); - -/* function called to process input packet */ -void ppp_input(ppp_pcb *pcb, struct pbuf *pb); - - -/* - * Functions called by PPP protocols. - */ - -/* function called by all PPP subsystems to send packets */ -err_t ppp_write(ppp_pcb *pcb, struct pbuf *p); - -/* functions called by auth.c link_terminated() */ -void ppp_link_terminated(ppp_pcb *pcb); - -void new_phase(ppp_pcb *pcb, int p); - -int ppp_send_config(ppp_pcb *pcb, int mtu, u32_t accm, int pcomp, int accomp); -int ppp_recv_config(ppp_pcb *pcb, int mru, u32_t accm, int pcomp, int accomp); - -#if PPP_IPV4_SUPPORT -int sifaddr(ppp_pcb *pcb, u32_t our_adr, u32_t his_adr, u32_t netmask); -int cifaddr(ppp_pcb *pcb, u32_t our_adr, u32_t his_adr); -#if 0 /* UNUSED - PROXY ARP */ -int sifproxyarp(ppp_pcb *pcb, u32_t his_adr); -int cifproxyarp(ppp_pcb *pcb, u32_t his_adr); -#endif /* UNUSED - PROXY ARP */ -#if LWIP_DNS -int sdns(ppp_pcb *pcb, u32_t ns1, u32_t ns2); -int cdns(ppp_pcb *pcb, u32_t ns1, u32_t ns2); -#endif /* LWIP_DNS */ -#if VJ_SUPPORT -int sifvjcomp(ppp_pcb *pcb, int vjcomp, int cidcomp, int maxcid); -#endif /* VJ_SUPPORT */ -int sifup(ppp_pcb *pcb); -int sifdown (ppp_pcb *pcb); -u32_t get_mask(u32_t addr); -#endif /* PPP_IPV4_SUPPORT */ - -#if PPP_IPV6_SUPPORT -int sif6addr(ppp_pcb *pcb, eui64_t our_eui64, eui64_t his_eui64); -int cif6addr(ppp_pcb *pcb, eui64_t our_eui64, eui64_t his_eui64); -int sif6up(ppp_pcb *pcb); -int sif6down (ppp_pcb *pcb); -#endif /* PPP_IPV6_SUPPORT */ - -#if DEMAND_SUPPORT -int sifnpmode(ppp_pcb *pcb, int proto, enum NPmode mode); -#endif /* DEMAND_SUPPORt */ - -void netif_set_mtu(ppp_pcb *pcb, int mtu); -int netif_get_mtu(ppp_pcb *pcb); - -#if CCP_SUPPORT -#if 0 /* unused */ -int ccp_test(ppp_pcb *pcb, u_char *opt_ptr, int opt_len, int for_transmit); -#endif /* unused */ -void ccp_set(ppp_pcb *pcb, u8_t isopen, u8_t isup, u8_t receive_method, u8_t transmit_method); -void ccp_reset_comp(ppp_pcb *pcb); -void ccp_reset_decomp(ppp_pcb *pcb); -#if 0 /* unused */ -int ccp_fatal_error(ppp_pcb *pcb); -#endif /* unused */ -#endif /* CCP_SUPPORT */ - -#if PPP_IDLETIMELIMIT -int get_idle_time(ppp_pcb *pcb, struct ppp_idle *ip); -#endif /* PPP_IDLETIMELIMIT */ - -#if DEMAND_SUPPORT -int get_loop_output(void); -#endif /* DEMAND_SUPPORT */ - -/* Optional protocol names list, to make our messages a little more informative. */ -#if PPP_PROTOCOLNAME -const char * protocol_name(int proto); -#endif /* PPP_PROTOCOLNAME */ - -/* Optional stats support, to get some statistics on the PPP interface */ -#if PPP_STATS_SUPPORT -void print_link_stats(void); /* Print stats, if available */ -void reset_link_stats(int u); /* Reset (init) stats when link goes up */ -void update_link_stats(int u); /* Get stats at link termination */ -#endif /* PPP_STATS_SUPPORT */ - - - -/* - * Inline versions of get/put char/short/long. - * Pointer is advanced; we assume that both arguments - * are lvalues and will already be in registers. - * cp MUST be u_char *. - */ -#define GETCHAR(c, cp) { \ - (c) = *(cp)++; \ -} -#define PUTCHAR(c, cp) { \ - *(cp)++ = (u_char) (c); \ -} -#define GETSHORT(s, cp) { \ - (s) = *(cp)++ << 8; \ - (s) |= *(cp)++; \ -} -#define PUTSHORT(s, cp) { \ - *(cp)++ = (u_char) ((s) >> 8); \ - *(cp)++ = (u_char) (s); \ -} -#define GETLONG(l, cp) { \ - (l) = *(cp)++ << 8; \ - (l) |= *(cp)++; (l) <<= 8; \ - (l) |= *(cp)++; (l) <<= 8; \ - (l) |= *(cp)++; \ -} -#define PUTLONG(l, cp) { \ - *(cp)++ = (u_char) ((l) >> 24); \ - *(cp)++ = (u_char) ((l) >> 16); \ - *(cp)++ = (u_char) ((l) >> 8); \ - *(cp)++ = (u_char) (l); \ -} - -#define INCPTR(n, cp) ((cp) += (n)) -#define DECPTR(n, cp) ((cp) -= (n)) - -/* - * System dependent definitions for user-level 4.3BSD UNIX implementation. - */ -#define TIMEOUT(f, a, t) do { sys_untimeout((f), (a)); sys_timeout((t)*1000, (f), (a)); } while(0) -#define TIMEOUTMS(f, a, t) do { sys_untimeout((f), (a)); sys_timeout((t), (f), (a)); } while(0) -#define UNTIMEOUT(f, a) sys_untimeout((f), (a)) - -#define BZERO(s, n) memset(s, 0, n) -#define BCMP(s1, s2, l) memcmp(s1, s2, l) - -#define PRINTMSG(m, l) { ppp_info("Remote message: %0.*v", l, m); } - -/* - * MAKEHEADER - Add Header fields to a packet. - */ -#define MAKEHEADER(p, t) { \ - PUTCHAR(PPP_ALLSTATIONS, p); \ - PUTCHAR(PPP_UI, p); \ - PUTSHORT(t, p); } - -/* Procedures exported from auth.c */ -void link_required(ppp_pcb *pcb); /* we are starting to use the link */ -void link_terminated(ppp_pcb *pcb); /* we are finished with the link */ -void link_down(ppp_pcb *pcb); /* the LCP layer has left the Opened state */ -void upper_layers_down(ppp_pcb *pcb); /* take all NCPs down */ -void link_established(ppp_pcb *pcb); /* the link is up; authenticate now */ -void start_networks(ppp_pcb *pcb); /* start all the network control protos */ -void continue_networks(ppp_pcb *pcb); /* start network [ip, etc] control protos */ -#if PPP_AUTH_SUPPORT -#if PPP_SERVER -int auth_check_passwd(ppp_pcb *pcb, char *auser, int userlen, char *apasswd, int passwdlen, const char **msg, int *msglen); - /* check the user name and passwd against configuration */ -void auth_peer_fail(ppp_pcb *pcb, int protocol); - /* peer failed to authenticate itself */ -void auth_peer_success(ppp_pcb *pcb, int protocol, int prot_flavor, const char *name, int namelen); - /* peer successfully authenticated itself */ -#endif /* PPP_SERVER */ -void auth_withpeer_fail(ppp_pcb *pcb, int protocol); - /* we failed to authenticate ourselves */ -void auth_withpeer_success(ppp_pcb *pcb, int protocol, int prot_flavor); - /* we successfully authenticated ourselves */ -#endif /* PPP_AUTH_SUPPORT */ -void np_up(ppp_pcb *pcb, int proto); /* a network protocol has come up */ -void np_down(ppp_pcb *pcb, int proto); /* a network protocol has gone down */ -void np_finished(ppp_pcb *pcb, int proto); /* a network protocol no longer needs link */ -#if PPP_AUTH_SUPPORT -int get_secret(ppp_pcb *pcb, const char *client, const char *server, char *secret, int *secret_len, int am_server); - /* get "secret" for chap */ -#endif /* PPP_AUTH_SUPPORT */ - -/* Procedures exported from ipcp.c */ -/* int parse_dotted_ip (char *, u32_t *); */ - -/* Procedures exported from demand.c */ -#if DEMAND_SUPPORT -void demand_conf (void); /* config interface(s) for demand-dial */ -void demand_block (void); /* set all NPs to queue up packets */ -void demand_unblock (void); /* set all NPs to pass packets */ -void demand_discard (void); /* set all NPs to discard packets */ -void demand_rexmit (int, u32_t); /* retransmit saved frames for an NP*/ -int loop_chars (unsigned char *, int); /* process chars from loopback */ -int loop_frame (unsigned char *, int); /* should we bring link up? */ -#endif /* DEMAND_SUPPORT */ - -/* Procedures exported from multilink.c */ -#ifdef HAVE_MULTILINK -void mp_check_options (void); /* Check multilink-related options */ -int mp_join_bundle (void); /* join our link to an appropriate bundle */ -void mp_exit_bundle (void); /* have disconnected our link from bundle */ -void mp_bundle_terminated (void); -char *epdisc_to_str (struct epdisc *); /* string from endpoint discrim. */ -int str_to_epdisc (struct epdisc *, char *); /* endpt disc. from str */ -#else -#define mp_bundle_terminated() /* nothing */ -#define mp_exit_bundle() /* nothing */ -#define doing_multilink 0 -#define multilink_master 0 -#endif - -/* Procedures exported from utils.c. */ -void ppp_print_string(const u_char *p, int len, void (*printer) (void *, const char *, ...), void *arg); /* Format a string for output */ -int ppp_slprintf(char *buf, int buflen, const char *fmt, ...); /* sprintf++ */ -int ppp_vslprintf(char *buf, int buflen, const char *fmt, va_list args); /* vsprintf++ */ -size_t ppp_strlcpy(char *dest, const char *src, size_t len); /* safe strcpy */ -size_t ppp_strlcat(char *dest, const char *src, size_t len); /* safe strncpy */ -void ppp_dbglog(const char *fmt, ...); /* log a debug message */ -void ppp_info(const char *fmt, ...); /* log an informational message */ -void ppp_notice(const char *fmt, ...); /* log a notice-level message */ -void ppp_warn(const char *fmt, ...); /* log a warning message */ -void ppp_error(const char *fmt, ...); /* log an error message */ -void ppp_fatal(const char *fmt, ...); /* log an error message and die(1) */ -#if PRINTPKT_SUPPORT -void ppp_dump_packet(ppp_pcb *pcb, const char *tag, unsigned char *p, int len); - /* dump packet to debug log if interesting */ -#endif /* PRINTPKT_SUPPORT */ - -/* - * Number of necessary timers analysis. - * - * PPP use at least one timer per each of its protocol, but not all protocols are - * active at the same time, thus the number of necessary timeouts is actually - * lower than enabled protocols. Here is the actual necessary timeouts based - * on code analysis. - * - * Note that many features analysed here are not working at all and are only - * there for a comprehensive analysis of necessary timers in order to prevent - * having to redo that each time we add a feature. - * - * Timer list - * - * | holdoff timeout - * | low level protocol timeout (PPPoE or PPPoL2P) - * | LCP delayed UP - * | LCP retransmit (FSM) - * | LCP Echo timer - * .| PAP or CHAP or EAP authentication - * . | ECP retransmit (FSM) - * . | CCP retransmit (FSM) when MPPE is enabled - * . | CCP retransmit (FSM) when MPPE is NOT enabled - * . | IPCP retransmit (FSM) - * . .| IP6CP retransmit (FSM) - * . . | Idle time limit - * . . | Max connect time - * . . | Max octets - * . . | CCP RACK timeout - * . . . - * PPP_PHASE_DEAD - * PPP_PHASE_HOLDOFF - * | . . . - * PPP_PHASE_INITIALIZE - * | . . . - * PPP_PHASE_ESTABLISH - * | . . . - * |. . . - * | . . - * PPP_PHASE_AUTHENTICATE - * | . . - * || . . - * PPP_PHASE_NETWORK - * | || . . - * | ||| . - * PPP_PHASE_RUNNING - * | .||||| - * | . |||| - * PPP_PHASE_TERMINATE - * | . |||| - * PPP_PHASE_NETWORK - * |. . - * PPP_PHASE_ESTABLISH - * PPP_PHASE_DISCONNECT - * PPP_PHASE_DEAD - * - * Alright, PPP basic retransmission and LCP Echo consume one timer. - * 1 - * - * If authentication is enabled one timer is necessary during authentication. - * 1 + PPP_AUTH_SUPPORT - * - * If ECP is enabled one timer is necessary before IPCP and/or IP6CP, one more - * is necessary if CCP is enabled (only with MPPE support but we don't care much - * up to this detail level). - * 1 + ECP_SUPPORT + CCP_SUPPORT - * - * If CCP is enabled it might consume a timer during IPCP or IP6CP, thus - * we might use IPCP, IP6CP and CCP timers simultaneously. - * 1 + PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT + CCP_SUPPORT - * - * When entering running phase, IPCP or IP6CP is still running. If idle time limit - * is enabled one more timer is necessary. Same for max connect time and max - * octets features. Furthermore CCP RACK might be used past this point. - * 1 + PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT -1 + PPP_IDLETIMELIMIT + PPP_MAXCONNECT + MAXOCTETS + CCP_SUPPORT - * - * IPv4 or IPv6 must be enabled, therefore we don't need to take care the authentication - * and the CCP + ECP case, thus reducing overall complexity. - * 1 + LWIP_MAX(PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT + CCP_SUPPORT, PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT -1 + PPP_IDLETIMELIMIT + PPP_MAXCONNECT + MAXOCTETS + CCP_SUPPORT) - * - * We don't support PPP_IDLETIMELIMIT + PPP_MAXCONNECT + MAXOCTETS features - * and adding those defines to ppp_opts.h just for having the value always - * defined to 0 isn't worth it. - * 1 + LWIP_MAX(PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT + CCP_SUPPORT, PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT -1 + CCP_SUPPORT) - * - * Thus, the following is enough for now. - * 1 + PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT + CCP_SUPPORT - */ - -#ifdef __cplusplus -} -#endif - -#endif /* PPP_SUPPORT */ -#endif /* LWIP_HDR_PPP_IMPL_H */ diff --git a/core/c/include/netif/ppp/ppp_opts.h b/core/c/include/netif/ppp/ppp_opts.h deleted file mode 100755 index 502a2cc..0000000 --- a/core/c/include/netif/ppp/ppp_opts.h +++ /dev/null @@ -1,610 +0,0 @@ -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#ifndef LWIP_PPP_OPTS_H -#define LWIP_PPP_OPTS_H - -#include "lwip/opt.h" - -/** - * PPP_SUPPORT==1: Enable PPP. - */ -#ifndef PPP_SUPPORT -#define PPP_SUPPORT 0 -#endif - -/** - * PPPOE_SUPPORT==1: Enable PPP Over Ethernet - */ -#ifndef PPPOE_SUPPORT -#define PPPOE_SUPPORT 0 -#endif - -/** - * PPPOL2TP_SUPPORT==1: Enable PPP Over L2TP - */ -#ifndef PPPOL2TP_SUPPORT -#define PPPOL2TP_SUPPORT 0 -#endif - -/** - * PPPOL2TP_AUTH_SUPPORT==1: Enable PPP Over L2TP Auth (enable MD5 support) - */ -#ifndef PPPOL2TP_AUTH_SUPPORT -#define PPPOL2TP_AUTH_SUPPORT PPPOL2TP_SUPPORT -#endif - -/** - * PPPOS_SUPPORT==1: Enable PPP Over Serial - */ -#ifndef PPPOS_SUPPORT -#define PPPOS_SUPPORT PPP_SUPPORT -#endif - -/** - * LWIP_PPP_API==1: Enable PPP API (in pppapi.c) - */ -#ifndef LWIP_PPP_API -#define LWIP_PPP_API (PPP_SUPPORT && (NO_SYS == 0)) -#endif - -#if PPP_SUPPORT - -/** - * MEMP_NUM_PPP_PCB: the number of simultaneously active PPP - * connections (requires the PPP_SUPPORT option) - */ -#ifndef MEMP_NUM_PPP_PCB -#define MEMP_NUM_PPP_PCB 1 -#endif - -/** - * PPP_NUM_TIMEOUTS_PER_PCB: the number of sys_timeouts running in parallel per - * ppp_pcb. See the detailed explanation at the end of ppp_impl.h about simultaneous - * timers analysis. - */ -#ifndef PPP_NUM_TIMEOUTS_PER_PCB -#define PPP_NUM_TIMEOUTS_PER_PCB (1 + PPP_IPV4_SUPPORT + PPP_IPV6_SUPPORT + CCP_SUPPORT) -#endif - -/* The number of sys_timeouts required for the PPP module */ -#define PPP_NUM_TIMEOUTS (PPP_SUPPORT * PPP_NUM_TIMEOUTS_PER_PCB * MEMP_NUM_PPP_PCB) - -/** - * MEMP_NUM_PPPOS_INTERFACES: the number of concurrently active PPPoS - * interfaces (only used with PPPOS_SUPPORT==1) - */ -#ifndef MEMP_NUM_PPPOS_INTERFACES -#define MEMP_NUM_PPPOS_INTERFACES MEMP_NUM_PPP_PCB -#endif - -/** - * MEMP_NUM_PPPOE_INTERFACES: the number of concurrently active PPPoE - * interfaces (only used with PPPOE_SUPPORT==1) - */ -#ifndef MEMP_NUM_PPPOE_INTERFACES -#define MEMP_NUM_PPPOE_INTERFACES 1 -#endif - -/** - * MEMP_NUM_PPPOL2TP_INTERFACES: the number of concurrently active PPPoL2TP - * interfaces (only used with PPPOL2TP_SUPPORT==1) - */ -#ifndef MEMP_NUM_PPPOL2TP_INTERFACES -#define MEMP_NUM_PPPOL2TP_INTERFACES 1 -#endif - -/** - * MEMP_NUM_PPP_API_MSG: Number of concurrent PPP API messages (in pppapi.c) - */ -#ifndef MEMP_NUM_PPP_API_MSG -#define MEMP_NUM_PPP_API_MSG 5 -#endif - -/** - * PPP_DEBUG: Enable debugging for PPP. - */ -#ifndef PPP_DEBUG -#define PPP_DEBUG LWIP_DBG_OFF -#endif - -/** - * PPP_INPROC_IRQ_SAFE==1 call pppos_input() using tcpip_callback(). - * - * Please read the "PPPoS input path" chapter in the PPP documentation about this option. - */ -#ifndef PPP_INPROC_IRQ_SAFE -#define PPP_INPROC_IRQ_SAFE 0 -#endif - -/** - * PRINTPKT_SUPPORT==1: Enable PPP print packet support - * - * Mandatory for debugging, it displays exchanged packet content in debug trace. - */ -#ifndef PRINTPKT_SUPPORT -#define PRINTPKT_SUPPORT 0 -#endif - -/** - * PPP_IPV4_SUPPORT==1: Enable PPP IPv4 support - */ -#ifndef PPP_IPV4_SUPPORT -#define PPP_IPV4_SUPPORT (LWIP_IPV4) -#endif - -/** - * PPP_IPV6_SUPPORT==1: Enable PPP IPv6 support - */ -#ifndef PPP_IPV6_SUPPORT -#define PPP_IPV6_SUPPORT (LWIP_IPV6) -#endif - -/** - * PPP_NOTIFY_PHASE==1: Support PPP notify phase support - * - * PPP notify phase support allows you to set a callback which is - * called on change of the internal PPP state machine. - * - * This can be used for example to set a LED pattern depending on the - * current phase of the PPP session. - */ -#ifndef PPP_NOTIFY_PHASE -#define PPP_NOTIFY_PHASE 0 -#endif - -/** - * pbuf_type PPP is using for LCP, PAP, CHAP, EAP, CCP, IPCP and IP6CP packets. - * - * Memory allocated must be single buffered for PPP to works, it requires pbuf - * that are not going to be chained when allocated. This requires setting - * PBUF_POOL_BUFSIZE to at least 512 bytes, which is quite huge for small systems. - * - * Setting PPP_USE_PBUF_RAM to 1 makes PPP use memory from heap where continuous - * buffers are required, allowing you to use a smaller PBUF_POOL_BUFSIZE. - */ -#ifndef PPP_USE_PBUF_RAM -#define PPP_USE_PBUF_RAM 0 -#endif - -/** - * PPP_FCS_TABLE: Keep a 256*2 byte table to speed up FCS calculation for PPPoS - */ -#ifndef PPP_FCS_TABLE -#define PPP_FCS_TABLE 1 -#endif - -/** - * PAP_SUPPORT==1: Support PAP. - */ -#ifndef PAP_SUPPORT -#define PAP_SUPPORT 0 -#endif - -/** - * CHAP_SUPPORT==1: Support CHAP. - */ -#ifndef CHAP_SUPPORT -#define CHAP_SUPPORT 0 -#endif - -/** - * MSCHAP_SUPPORT==1: Support MSCHAP. - */ -#ifndef MSCHAP_SUPPORT -#define MSCHAP_SUPPORT 0 -#endif -#if MSCHAP_SUPPORT -/* MSCHAP requires CHAP support */ -#undef CHAP_SUPPORT -#define CHAP_SUPPORT 1 -#endif /* MSCHAP_SUPPORT */ - -/** - * EAP_SUPPORT==1: Support EAP. - */ -#ifndef EAP_SUPPORT -#define EAP_SUPPORT 0 -#endif - -/** - * CCP_SUPPORT==1: Support CCP. - */ -#ifndef CCP_SUPPORT -#define CCP_SUPPORT 0 -#endif - -/** - * MPPE_SUPPORT==1: Support MPPE. - */ -#ifndef MPPE_SUPPORT -#define MPPE_SUPPORT 0 -#endif -#if MPPE_SUPPORT -/* MPPE requires CCP support */ -#undef CCP_SUPPORT -#define CCP_SUPPORT 1 -/* MPPE requires MSCHAP support */ -#undef MSCHAP_SUPPORT -#define MSCHAP_SUPPORT 1 -/* MSCHAP requires CHAP support */ -#undef CHAP_SUPPORT -#define CHAP_SUPPORT 1 -#endif /* MPPE_SUPPORT */ - -/** - * CBCP_SUPPORT==1: Support CBCP. CURRENTLY NOT SUPPORTED! DO NOT SET! - */ -#ifndef CBCP_SUPPORT -#define CBCP_SUPPORT 0 -#endif - -/** - * ECP_SUPPORT==1: Support ECP. CURRENTLY NOT SUPPORTED! DO NOT SET! - */ -#ifndef ECP_SUPPORT -#define ECP_SUPPORT 0 -#endif - -/** - * DEMAND_SUPPORT==1: Support dial on demand. CURRENTLY NOT SUPPORTED! DO NOT SET! - */ -#ifndef DEMAND_SUPPORT -#define DEMAND_SUPPORT 0 -#endif - -/** - * LQR_SUPPORT==1: Support Link Quality Report. Do nothing except exchanging some LCP packets. - */ -#ifndef LQR_SUPPORT -#define LQR_SUPPORT 0 -#endif - -/** - * PPP_SERVER==1: Enable PPP server support (waiting for incoming PPP session). - * - * Currently only supported for PPPoS. - */ -#ifndef PPP_SERVER -#define PPP_SERVER 0 -#endif - -#if PPP_SERVER -/* - * PPP_OUR_NAME: Our name for authentication purposes - */ -#ifndef PPP_OUR_NAME -#define PPP_OUR_NAME "lwIP" -#endif -#endif /* PPP_SERVER */ - -/** - * VJ_SUPPORT==1: Support VJ header compression. - */ -#ifndef VJ_SUPPORT -#define VJ_SUPPORT 1 -#endif -/* VJ compression is only supported for TCP over IPv4 over PPPoS. */ -#if !PPPOS_SUPPORT || !PPP_IPV4_SUPPORT || !LWIP_TCP -#undef VJ_SUPPORT -#define VJ_SUPPORT 0 -#endif /* !PPPOS_SUPPORT */ - -/** - * PPP_MD5_RANDM==1: Use MD5 for better randomness. - * Enabled by default if CHAP, EAP, or L2TP AUTH support is enabled. - */ -#ifndef PPP_MD5_RANDM -#define PPP_MD5_RANDM (CHAP_SUPPORT || EAP_SUPPORT || PPPOL2TP_AUTH_SUPPORT) -#endif - -/** - * PolarSSL embedded library - * - * - * lwIP contains some files fetched from the latest BSD release of - * the PolarSSL project (PolarSSL 0.10.1-bsd) for ciphers and encryption - * methods we need for lwIP PPP support. - * - * The PolarSSL files were cleaned to contain only the necessary struct - * fields and functions needed for lwIP. - * - * The PolarSSL API was not changed at all, so if you are already using - * PolarSSL you can choose to skip the compilation of the included PolarSSL - * library into lwIP. - * - * If you are not using the embedded copy you must include external - * libraries into your arch/cc.h port file. - * - * Beware of the stack requirements which can be a lot larger if you are not - * using our cleaned PolarSSL library. - */ - -/** - * LWIP_USE_EXTERNAL_POLARSSL: Use external PolarSSL library - */ -#ifndef LWIP_USE_EXTERNAL_POLARSSL -#define LWIP_USE_EXTERNAL_POLARSSL 0 -#endif - -/** - * LWIP_USE_EXTERNAL_MBEDTLS: Use external mbed TLS library - */ -#ifndef LWIP_USE_EXTERNAL_MBEDTLS -#define LWIP_USE_EXTERNAL_MBEDTLS 0 -#endif - -/* - * PPP Timeouts - */ - -/** - * FSM_DEFTIMEOUT: Timeout time in seconds - */ -#ifndef FSM_DEFTIMEOUT -#define FSM_DEFTIMEOUT 6 -#endif - -/** - * FSM_DEFMAXTERMREQS: Maximum Terminate-Request transmissions - */ -#ifndef FSM_DEFMAXTERMREQS -#define FSM_DEFMAXTERMREQS 2 -#endif - -/** - * FSM_DEFMAXCONFREQS: Maximum Configure-Request transmissions - */ -#ifndef FSM_DEFMAXCONFREQS -#define FSM_DEFMAXCONFREQS 10 -#endif - -/** - * FSM_DEFMAXNAKLOOPS: Maximum number of nak loops - */ -#ifndef FSM_DEFMAXNAKLOOPS -#define FSM_DEFMAXNAKLOOPS 5 -#endif - -/** - * UPAP_DEFTIMEOUT: Timeout (seconds) for retransmitting req - */ -#ifndef UPAP_DEFTIMEOUT -#define UPAP_DEFTIMEOUT 6 -#endif - -/** - * UPAP_DEFTRANSMITS: Maximum number of auth-reqs to send - */ -#ifndef UPAP_DEFTRANSMITS -#define UPAP_DEFTRANSMITS 10 -#endif - -#if PPP_SERVER -/** - * UPAP_DEFREQTIME: Time to wait for auth-req from peer - */ -#ifndef UPAP_DEFREQTIME -#define UPAP_DEFREQTIME 30 -#endif -#endif /* PPP_SERVER */ - -/** - * CHAP_DEFTIMEOUT: Timeout (seconds) for retransmitting req - */ -#ifndef CHAP_DEFTIMEOUT -#define CHAP_DEFTIMEOUT 6 -#endif - -/** - * CHAP_DEFTRANSMITS: max # times to send challenge - */ -#ifndef CHAP_DEFTRANSMITS -#define CHAP_DEFTRANSMITS 10 -#endif - -#if PPP_SERVER -/** - * CHAP_DEFRECHALLENGETIME: If this option is > 0, rechallenge the peer every n seconds - */ -#ifndef CHAP_DEFRECHALLENGETIME -#define CHAP_DEFRECHALLENGETIME 0 -#endif -#endif /* PPP_SERVER */ - -/** - * EAP_DEFREQTIME: Time to wait for peer request - */ -#ifndef EAP_DEFREQTIME -#define EAP_DEFREQTIME 6 -#endif - -/** - * EAP_DEFALLOWREQ: max # times to accept requests - */ -#ifndef EAP_DEFALLOWREQ -#define EAP_DEFALLOWREQ 10 -#endif - -#if PPP_SERVER -/** - * EAP_DEFTIMEOUT: Timeout (seconds) for rexmit - */ -#ifndef EAP_DEFTIMEOUT -#define EAP_DEFTIMEOUT 6 -#endif - -/** - * EAP_DEFTRANSMITS: max # times to transmit - */ -#ifndef EAP_DEFTRANSMITS -#define EAP_DEFTRANSMITS 10 -#endif -#endif /* PPP_SERVER */ - -/** - * LCP_DEFLOOPBACKFAIL: Default number of times we receive our magic number from the peer - * before deciding the link is looped-back. - */ -#ifndef LCP_DEFLOOPBACKFAIL -#define LCP_DEFLOOPBACKFAIL 10 -#endif - -/** - * LCP_ECHOINTERVAL: Interval in seconds between keepalive echo requests, 0 to disable. - */ -#ifndef LCP_ECHOINTERVAL -#define LCP_ECHOINTERVAL 0 -#endif - -/** - * LCP_MAXECHOFAILS: Number of unanswered echo requests before failure. - */ -#ifndef LCP_MAXECHOFAILS -#define LCP_MAXECHOFAILS 3 -#endif - -/** - * PPP_MAXIDLEFLAG: Max Xmit idle time (in ms) before resend flag char. - */ -#ifndef PPP_MAXIDLEFLAG -#define PPP_MAXIDLEFLAG 100 -#endif - -/** - * PPP Packet sizes - */ - -/** - * PPP_MRU: Default MRU - */ -#ifndef PPP_MRU -#define PPP_MRU 1500 -#endif - -/** - * PPP_DEFMRU: Default MRU to try - */ -#ifndef PPP_DEFMRU -#define PPP_DEFMRU 1500 -#endif - -/** - * PPP_MAXMRU: Normally limit MRU to this (pppd default = 16384) - */ -#ifndef PPP_MAXMRU -#define PPP_MAXMRU 1500 -#endif - -/** - * PPP_MINMRU: No MRUs below this - */ -#ifndef PPP_MINMRU -#define PPP_MINMRU 128 -#endif - -/** - * PPPOL2TP_DEFMRU: Default MTU and MRU for L2TP - * Default = 1500 - PPPoE(6) - PPP Protocol(2) - IPv4 header(20) - UDP Header(8) - * - L2TP Header(6) - HDLC Header(2) - PPP Protocol(2) - MPPE Header(2) - PPP Protocol(2) - */ -#if PPPOL2TP_SUPPORT -#ifndef PPPOL2TP_DEFMRU -#define PPPOL2TP_DEFMRU 1450 -#endif -#endif /* PPPOL2TP_SUPPORT */ - -/** - * MAXNAMELEN: max length of hostname or name for auth - */ -#ifndef MAXNAMELEN -#define MAXNAMELEN 256 -#endif - -/** - * MAXSECRETLEN: max length of password or secret - */ -#ifndef MAXSECRETLEN -#define MAXSECRETLEN 256 -#endif - -/* ------------------------------------------------------------------------- */ - -/* - * Build triggers for embedded PolarSSL - */ -#if !LWIP_USE_EXTERNAL_POLARSSL && !LWIP_USE_EXTERNAL_MBEDTLS - -/* CHAP, EAP, L2TP AUTH and MD5 Random require MD5 support */ -#if CHAP_SUPPORT || EAP_SUPPORT || PPPOL2TP_AUTH_SUPPORT || PPP_MD5_RANDM -#define LWIP_INCLUDED_POLARSSL_MD5 1 -#endif /* CHAP_SUPPORT || EAP_SUPPORT || PPPOL2TP_AUTH_SUPPORT || PPP_MD5_RANDM */ - -#if MSCHAP_SUPPORT - -/* MSCHAP require MD4 support */ -#define LWIP_INCLUDED_POLARSSL_MD4 1 -/* MSCHAP require SHA1 support */ -#define LWIP_INCLUDED_POLARSSL_SHA1 1 -/* MSCHAP require DES support */ -#define LWIP_INCLUDED_POLARSSL_DES 1 - -/* MS-CHAP support is required for MPPE */ -#if MPPE_SUPPORT -/* MPPE require ARC4 support */ -#define LWIP_INCLUDED_POLARSSL_ARC4 1 -#endif /* MPPE_SUPPORT */ - -#endif /* MSCHAP_SUPPORT */ - -#endif /* !LWIP_USE_EXTERNAL_POLARSSL && !LWIP_USE_EXTERNAL_MBEDTLS */ - -/* Default value if unset */ -#ifndef LWIP_INCLUDED_POLARSSL_MD4 -#define LWIP_INCLUDED_POLARSSL_MD4 0 -#endif /* LWIP_INCLUDED_POLARSSL_MD4 */ -#ifndef LWIP_INCLUDED_POLARSSL_MD5 -#define LWIP_INCLUDED_POLARSSL_MD5 0 -#endif /* LWIP_INCLUDED_POLARSSL_MD5 */ -#ifndef LWIP_INCLUDED_POLARSSL_SHA1 -#define LWIP_INCLUDED_POLARSSL_SHA1 0 -#endif /* LWIP_INCLUDED_POLARSSL_SHA1 */ -#ifndef LWIP_INCLUDED_POLARSSL_DES -#define LWIP_INCLUDED_POLARSSL_DES 0 -#endif /* LWIP_INCLUDED_POLARSSL_DES */ -#ifndef LWIP_INCLUDED_POLARSSL_ARC4 -#define LWIP_INCLUDED_POLARSSL_ARC4 0 -#endif /* LWIP_INCLUDED_POLARSSL_ARC4 */ - -#endif /* PPP_SUPPORT */ - -/* Default value if unset */ -#ifndef PPP_NUM_TIMEOUTS -#define PPP_NUM_TIMEOUTS 0 -#endif /* PPP_NUM_TIMEOUTS */ - -#endif /* LWIP_PPP_OPTS_H */ diff --git a/core/c/include/netif/ppp/pppapi.h b/core/c/include/netif/ppp/pppapi.h deleted file mode 100755 index 70c262a..0000000 --- a/core/c/include/netif/ppp/pppapi.h +++ /dev/null @@ -1,137 +0,0 @@ -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#ifndef LWIP_PPPAPI_H -#define LWIP_PPPAPI_H - -#include "netif/ppp/ppp_opts.h" - -#if LWIP_PPP_API /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/sys.h" -#include "lwip/netif.h" -#include "lwip/priv/tcpip_priv.h" -#include "netif/ppp/ppp.h" -#if PPPOS_SUPPORT -#include "netif/ppp/pppos.h" -#endif /* PPPOS_SUPPORT */ - -#ifdef __cplusplus -extern "C" { -#endif - -struct pppapi_msg_msg { - ppp_pcb *ppp; - union { -#if PPP_NOTIFY_PHASE - struct { - ppp_notify_phase_cb_fn notify_phase_cb; - } setnotifyphasecb; -#endif /* PPP_NOTIFY_PHASE */ -#if PPPOS_SUPPORT - struct { - struct netif *pppif; - pppos_output_cb_fn output_cb; - ppp_link_status_cb_fn link_status_cb; - void *ctx_cb; - } serialcreate; -#endif /* PPPOS_SUPPORT */ -#if PPPOE_SUPPORT - struct { - struct netif *pppif; - struct netif *ethif; - const char *service_name; - const char *concentrator_name; - ppp_link_status_cb_fn link_status_cb; - void *ctx_cb; - } ethernetcreate; -#endif /* PPPOE_SUPPORT */ -#if PPPOL2TP_SUPPORT - struct { - struct netif *pppif; - struct netif *netif; - API_MSG_M_DEF_C(ip_addr_t, ipaddr); - u16_t port; -#if PPPOL2TP_AUTH_SUPPORT - const u8_t *secret; - u8_t secret_len; -#endif /* PPPOL2TP_AUTH_SUPPORT */ - ppp_link_status_cb_fn link_status_cb; - void *ctx_cb; - } l2tpcreate; -#endif /* PPPOL2TP_SUPPORT */ - struct { - u16_t holdoff; - } connect; - struct { - u8_t nocarrier; - } close; - struct { - u8_t cmd; - void *arg; - } ioctl; - } msg; -}; - -struct pppapi_msg { - struct tcpip_api_call_data call; - struct pppapi_msg_msg msg; -}; - -/* API for application */ -err_t pppapi_set_default(ppp_pcb *pcb); -#if PPP_NOTIFY_PHASE -err_t pppapi_set_notify_phase_callback(ppp_pcb *pcb, ppp_notify_phase_cb_fn notify_phase_cb); -#endif /* PPP_NOTIFY_PHASE */ -#if PPPOS_SUPPORT -ppp_pcb *pppapi_pppos_create(struct netif *pppif, pppos_output_cb_fn output_cb, ppp_link_status_cb_fn link_status_cb, void *ctx_cb); -#endif /* PPPOS_SUPPORT */ -#if PPPOE_SUPPORT -ppp_pcb *pppapi_pppoe_create(struct netif *pppif, struct netif *ethif, const char *service_name, - const char *concentrator_name, ppp_link_status_cb_fn link_status_cb, - void *ctx_cb); -#endif /* PPPOE_SUPPORT */ -#if PPPOL2TP_SUPPORT -ppp_pcb *pppapi_pppol2tp_create(struct netif *pppif, struct netif *netif, ip_addr_t *ipaddr, u16_t port, - const u8_t *secret, u8_t secret_len, - ppp_link_status_cb_fn link_status_cb, void *ctx_cb); -#endif /* PPPOL2TP_SUPPORT */ -err_t pppapi_connect(ppp_pcb *pcb, u16_t holdoff); -#if PPP_SERVER -err_t pppapi_listen(ppp_pcb *pcb); -#endif /* PPP_SERVER */ -err_t pppapi_close(ppp_pcb *pcb, u8_t nocarrier); -err_t pppapi_free(ppp_pcb *pcb); -err_t pppapi_ioctl(ppp_pcb *pcb, u8_t cmd, void *arg); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_PPP_API */ - -#endif /* LWIP_PPPAPI_H */ diff --git a/core/c/include/netif/ppp/pppcrypt.h b/core/c/include/netif/ppp/pppcrypt.h deleted file mode 100755 index 968e532..0000000 --- a/core/c/include/netif/ppp/pppcrypt.h +++ /dev/null @@ -1,144 +0,0 @@ -/* - * pppcrypt.c - PPP/DES linkage for MS-CHAP and EAP SRP-SHA1 - * - * Extracted from chap_ms.c by James Carlson. - * - * Copyright (c) 1995 Eric Rosenquist. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name(s) of the authors of this software must not be used to - * endorse or promote products derived from this software without - * prior written permission. - * - * THE AUTHORS OF THIS SOFTWARE DISCLAIM ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY - * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -/* This header file is included in all PPP modules needing hashes and/or ciphers */ - -#ifndef PPPCRYPT_H -#define PPPCRYPT_H - -/* - * If included PolarSSL copy is not used, user is expected to include - * external libraries in arch/cc.h (which is included by lwip/arch.h). - */ -#include "lwip/arch.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Map hashes and ciphers functions to PolarSSL - */ -#if !LWIP_USE_EXTERNAL_MBEDTLS - -#include "netif/ppp/polarssl/md4.h" -#define lwip_md4_context md4_context -#define lwip_md4_init(context) -#define lwip_md4_starts md4_starts -#define lwip_md4_update md4_update -#define lwip_md4_finish md4_finish -#define lwip_md4_free(context) - -#include "netif/ppp/polarssl/md5.h" -#define lwip_md5_context md5_context -#define lwip_md5_init(context) -#define lwip_md5_starts md5_starts -#define lwip_md5_update md5_update -#define lwip_md5_finish md5_finish -#define lwip_md5_free(context) - -#include "netif/ppp/polarssl/sha1.h" -#define lwip_sha1_context sha1_context -#define lwip_sha1_init(context) -#define lwip_sha1_starts sha1_starts -#define lwip_sha1_update sha1_update -#define lwip_sha1_finish sha1_finish -#define lwip_sha1_free(context) - -#include "netif/ppp/polarssl/des.h" -#define lwip_des_context des_context -#define lwip_des_init(context) -#define lwip_des_setkey_enc des_setkey_enc -#define lwip_des_crypt_ecb des_crypt_ecb -#define lwip_des_free(context) - -#include "netif/ppp/polarssl/arc4.h" -#define lwip_arc4_context arc4_context -#define lwip_arc4_init(context) -#define lwip_arc4_setup arc4_setup -#define lwip_arc4_crypt arc4_crypt -#define lwip_arc4_free(context) - -#endif /* !LWIP_USE_EXTERNAL_MBEDTLS */ - -/* - * Map hashes and ciphers functions to mbed TLS - */ -#if LWIP_USE_EXTERNAL_MBEDTLS - -#define lwip_md4_context mbedtls_md4_context -#define lwip_md4_init mbedtls_md4_init -#define lwip_md4_starts mbedtls_md4_starts -#define lwip_md4_update mbedtls_md4_update -#define lwip_md4_finish mbedtls_md4_finish -#define lwip_md4_free mbedtls_md4_free - -#define lwip_md5_context mbedtls_md5_context -#define lwip_md5_init mbedtls_md5_init -#define lwip_md5_starts mbedtls_md5_starts -#define lwip_md5_update mbedtls_md5_update -#define lwip_md5_finish mbedtls_md5_finish -#define lwip_md5_free mbedtls_md5_free - -#define lwip_sha1_context mbedtls_sha1_context -#define lwip_sha1_init mbedtls_sha1_init -#define lwip_sha1_starts mbedtls_sha1_starts -#define lwip_sha1_update mbedtls_sha1_update -#define lwip_sha1_finish mbedtls_sha1_finish -#define lwip_sha1_free mbedtls_sha1_free - -#define lwip_des_context mbedtls_des_context -#define lwip_des_init mbedtls_des_init -#define lwip_des_setkey_enc mbedtls_des_setkey_enc -#define lwip_des_crypt_ecb mbedtls_des_crypt_ecb -#define lwip_des_free mbedtls_des_free - -#define lwip_arc4_context mbedtls_arc4_context -#define lwip_arc4_init mbedtls_arc4_init -#define lwip_arc4_setup mbedtls_arc4_setup -#define lwip_arc4_crypt(context, buffer, length) mbedtls_arc4_crypt(context, length, buffer, buffer) -#define lwip_arc4_free mbedtls_arc4_free - -#endif /* LWIP_USE_EXTERNAL_MBEDTLS */ - -void pppcrypt_56_to_64_bit_key(u_char *key, u_char *des_key); - -#ifdef __cplusplus -} -#endif - -#endif /* PPPCRYPT_H */ - -#endif /* PPP_SUPPORT */ diff --git a/core/c/include/netif/ppp/pppdebug.h b/core/c/include/netif/ppp/pppdebug.h deleted file mode 100755 index 391b7c6..0000000 --- a/core/c/include/netif/ppp/pppdebug.h +++ /dev/null @@ -1,88 +0,0 @@ -/***************************************************************************** -* pppdebug.h - System debugging utilities. -* -* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. -* portions Copyright (c) 1998 Global Election Systems Inc. -* portions Copyright (c) 2001 by Cognizant Pty Ltd. -* -* The authors hereby grant permission to use, copy, modify, distribute, -* and license this software and its documentation for any purpose, provided -* that existing copyright notices are retained in all copies and that this -* notice and the following disclaimer are included verbatim in any -* distributions. No written agreement, license, or royalty fee is required -* for any of the authorized uses. -* -* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR -* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES -* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. -* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -* -****************************************************************************** -* REVISION HISTORY (please don't use tabs!) -* -* 03-01-01 Marc Boucher -* Ported to lwIP. -* 98-07-29 Guy Lancaster , Global Election Systems Inc. -* Original. -* -***************************************************************************** -*/ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef PPPDEBUG_H -#define PPPDEBUG_H - -#ifdef __cplusplus -extern "C" { -#endif - -/* Trace levels. */ -#define LOG_CRITICAL (PPP_DEBUG | LWIP_DBG_LEVEL_SEVERE) -#define LOG_ERR (PPP_DEBUG | LWIP_DBG_LEVEL_SEVERE) -#define LOG_NOTICE (PPP_DEBUG | LWIP_DBG_LEVEL_WARNING) -#define LOG_WARNING (PPP_DEBUG | LWIP_DBG_LEVEL_WARNING) -#define LOG_INFO (PPP_DEBUG) -#define LOG_DETAIL (PPP_DEBUG) -#define LOG_DEBUG (PPP_DEBUG) - -#if PPP_DEBUG - -#define MAINDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) -#define SYSDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) -#define FSMDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) -#define LCPDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) -#define IPCPDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) -#define IPV6CPDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) -#define UPAPDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) -#define CHAPDEBUG(a) LWIP_DEBUGF(LWIP_DBG_LEVEL_WARNING, a) -#define PPPDEBUG(a, b) LWIP_DEBUGF(a, b) - -#else /* PPP_DEBUG */ - -#define MAINDEBUG(a) -#define SYSDEBUG(a) -#define FSMDEBUG(a) -#define LCPDEBUG(a) -#define IPCPDEBUG(a) -#define IPV6CPDEBUG(a) -#define UPAPDEBUG(a) -#define CHAPDEBUG(a) -#define PPPDEBUG(a, b) - -#endif /* PPP_DEBUG */ - -#ifdef __cplusplus -} -#endif - -#endif /* PPPDEBUG_H */ - -#endif /* PPP_SUPPORT */ diff --git a/core/c/include/netif/ppp/pppoe.h b/core/c/include/netif/ppp/pppoe.h deleted file mode 100755 index 93acd4c..0000000 --- a/core/c/include/netif/ppp/pppoe.h +++ /dev/null @@ -1,187 +0,0 @@ -/***************************************************************************** -* pppoe.h - PPP Over Ethernet implementation for lwIP. -* -* Copyright (c) 2006 by Marc Boucher, Services Informatiques (MBSI) inc. -* -* The authors hereby grant permission to use, copy, modify, distribute, -* and license this software and its documentation for any purpose, provided -* that existing copyright notices are retained in all copies and that this -* notice and the following disclaimer are included verbatim in any -* distributions. No written agreement, license, or royalty fee is required -* for any of the authorized uses. -* -* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR -* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES -* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. -* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT -* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, -* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY -* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT -* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF -* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -* -****************************************************************************** -* REVISION HISTORY -* -* 06-01-01 Marc Boucher -* Ported to lwIP. -*****************************************************************************/ - - - -/* based on NetBSD: if_pppoe.c,v 1.64 2006/01/31 23:50:15 martin Exp */ - -/*- - * Copyright (c) 2002 The NetBSD Foundation, Inc. - * All rights reserved. - * - * This code is derived from software contributed to The NetBSD Foundation - * by Martin Husemann . - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the NetBSD - * Foundation, Inc. and its contributors. - * 4. Neither the name of The NetBSD Foundation nor the names of its - * contributors may be used to endorse or promote products derived - * from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS - * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && PPPOE_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef PPP_OE_H -#define PPP_OE_H - -#include "ppp.h" -#include "lwip/etharp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct pppoehdr { - PACK_STRUCT_FLD_8(u8_t vertype); - PACK_STRUCT_FLD_8(u8_t code); - PACK_STRUCT_FIELD(u16_t session); - PACK_STRUCT_FIELD(u16_t plen); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/bpstruct.h" -#endif -PACK_STRUCT_BEGIN -struct pppoetag { - PACK_STRUCT_FIELD(u16_t tag); - PACK_STRUCT_FIELD(u16_t len); -} PACK_STRUCT_STRUCT; -PACK_STRUCT_END -#ifdef PACK_STRUCT_USE_INCLUDES -# include "arch/epstruct.h" -#endif - - -#define PPPOE_STATE_INITIAL 0 -#define PPPOE_STATE_PADI_SENT 1 -#define PPPOE_STATE_PADR_SENT 2 -#define PPPOE_STATE_SESSION 3 -/* passive */ -#define PPPOE_STATE_PADO_SENT 1 - -#define PPPOE_HEADERLEN sizeof(struct pppoehdr) -#define PPPOE_VERTYPE 0x11 /* VER=1, TYPE = 1 */ - -#define PPPOE_TAG_EOL 0x0000 /* end of list */ -#define PPPOE_TAG_SNAME 0x0101 /* service name */ -#define PPPOE_TAG_ACNAME 0x0102 /* access concentrator name */ -#define PPPOE_TAG_HUNIQUE 0x0103 /* host unique */ -#define PPPOE_TAG_ACCOOKIE 0x0104 /* AC cookie */ -#define PPPOE_TAG_VENDOR 0x0105 /* vendor specific */ -#define PPPOE_TAG_RELAYSID 0x0110 /* relay session id */ -#define PPPOE_TAG_SNAME_ERR 0x0201 /* service name error */ -#define PPPOE_TAG_ACSYS_ERR 0x0202 /* AC system error */ -#define PPPOE_TAG_GENERIC_ERR 0x0203 /* gerneric error */ - -#define PPPOE_CODE_PADI 0x09 /* Active Discovery Initiation */ -#define PPPOE_CODE_PADO 0x07 /* Active Discovery Offer */ -#define PPPOE_CODE_PADR 0x19 /* Active Discovery Request */ -#define PPPOE_CODE_PADS 0x65 /* Active Discovery Session confirmation */ -#define PPPOE_CODE_PADT 0xA7 /* Active Discovery Terminate */ - -#ifndef PPPOE_MAX_AC_COOKIE_LEN -#define PPPOE_MAX_AC_COOKIE_LEN 64 -#endif - -struct pppoe_softc { - struct pppoe_softc *next; - struct netif *sc_ethif; /* ethernet interface we are using */ - ppp_pcb *pcb; /* PPP PCB */ - - struct eth_addr sc_dest; /* hardware address of concentrator */ - u16_t sc_session; /* PPPoE session id */ - u8_t sc_state; /* discovery phase or session connected */ - -#ifdef PPPOE_TODO - u8_t *sc_service_name; /* if != NULL: requested name of service */ - u8_t *sc_concentrator_name; /* if != NULL: requested concentrator id */ -#endif /* PPPOE_TODO */ - u8_t sc_ac_cookie[PPPOE_MAX_AC_COOKIE_LEN]; /* content of AC cookie we must echo back */ - u8_t sc_ac_cookie_len; /* length of cookie data */ -#ifdef PPPOE_SERVER - u8_t *sc_hunique; /* content of host unique we must echo back */ - u8_t sc_hunique_len; /* length of host unique */ -#endif - u8_t sc_padi_retried; /* number of PADI retries already done */ - u8_t sc_padr_retried; /* number of PADR retries already done */ -}; - - -#define pppoe_init() /* compatibility define, no initialization needed */ - -ppp_pcb *pppoe_create(struct netif *pppif, - struct netif *ethif, - const char *service_name, const char *concentrator_name, - ppp_link_status_cb_fn link_status_cb, void *ctx_cb); - -/* - * Functions called from lwIP - * DO NOT CALL FROM lwIP USER APPLICATION. - */ -void pppoe_disc_input(struct netif *netif, struct pbuf *p); -void pppoe_data_input(struct netif *netif, struct pbuf *p); - -#ifdef __cplusplus -} -#endif - -#endif /* PPP_OE_H */ - -#endif /* PPP_SUPPORT && PPPOE_SUPPORT */ diff --git a/core/c/include/netif/ppp/pppol2tp.h b/core/c/include/netif/ppp/pppol2tp.h deleted file mode 100755 index e09d6e1..0000000 --- a/core/c/include/netif/ppp/pppol2tp.h +++ /dev/null @@ -1,209 +0,0 @@ -/** - * @file - * Network Point to Point Protocol over Layer 2 Tunneling Protocol header file. - * - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && PPPOL2TP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef PPPOL2TP_H -#define PPPOL2TP_H - -#include "ppp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* Timeout */ -#define PPPOL2TP_CONTROL_TIMEOUT (5*1000) /* base for quick timeout calculation */ -#define PPPOL2TP_SLOW_RETRY (60*1000) /* persistent retry interval */ - -#define PPPOL2TP_MAXSCCRQ 4 /* retry SCCRQ four times (quickly) */ -#define PPPOL2TP_MAXICRQ 4 /* retry IRCQ four times */ -#define PPPOL2TP_MAXICCN 4 /* retry ICCN four times */ - -/* L2TP header flags */ -#define PPPOL2TP_HEADERFLAG_CONTROL 0x8000 -#define PPPOL2TP_HEADERFLAG_LENGTH 0x4000 -#define PPPOL2TP_HEADERFLAG_SEQUENCE 0x0800 -#define PPPOL2TP_HEADERFLAG_OFFSET 0x0200 -#define PPPOL2TP_HEADERFLAG_PRIORITY 0x0100 -#define PPPOL2TP_HEADERFLAG_VERSION 0x0002 - -/* Mandatory bits for control: Control, Length, Sequence, Version 2 */ -#define PPPOL2TP_HEADERFLAG_CONTROL_MANDATORY (PPPOL2TP_HEADERFLAG_CONTROL|PPPOL2TP_HEADERFLAG_LENGTH|PPPOL2TP_HEADERFLAG_SEQUENCE|PPPOL2TP_HEADERFLAG_VERSION) -/* Forbidden bits for control: Offset, Priority */ -#define PPPOL2TP_HEADERFLAG_CONTROL_FORBIDDEN (PPPOL2TP_HEADERFLAG_OFFSET|PPPOL2TP_HEADERFLAG_PRIORITY) - -/* Mandatory bits for data: Version 2 */ -#define PPPOL2TP_HEADERFLAG_DATA_MANDATORY (PPPOL2TP_HEADERFLAG_VERSION) - -/* AVP (Attribute Value Pair) header */ -#define PPPOL2TP_AVPHEADERFLAG_MANDATORY 0x8000 -#define PPPOL2TP_AVPHEADERFLAG_HIDDEN 0x4000 -#define PPPOL2TP_AVPHEADERFLAG_LENGTHMASK 0x03ff - -/* -- AVP - Message type */ -#define PPPOL2TP_AVPTYPE_MESSAGE 0 /* Message type */ - -/* Control Connection Management */ -#define PPPOL2TP_MESSAGETYPE_SCCRQ 1 /* Start Control Connection Request */ -#define PPPOL2TP_MESSAGETYPE_SCCRP 2 /* Start Control Connection Reply */ -#define PPPOL2TP_MESSAGETYPE_SCCCN 3 /* Start Control Connection Connected */ -#define PPPOL2TP_MESSAGETYPE_STOPCCN 4 /* Stop Control Connection Notification */ -#define PPPOL2TP_MESSAGETYPE_HELLO 6 /* Hello */ -/* Call Management */ -#define PPPOL2TP_MESSAGETYPE_OCRQ 7 /* Outgoing Call Request */ -#define PPPOL2TP_MESSAGETYPE_OCRP 8 /* Outgoing Call Reply */ -#define PPPOL2TP_MESSAGETYPE_OCCN 9 /* Outgoing Call Connected */ -#define PPPOL2TP_MESSAGETYPE_ICRQ 10 /* Incoming Call Request */ -#define PPPOL2TP_MESSAGETYPE_ICRP 11 /* Incoming Call Reply */ -#define PPPOL2TP_MESSAGETYPE_ICCN 12 /* Incoming Call Connected */ -#define PPPOL2TP_MESSAGETYPE_CDN 14 /* Call Disconnect Notify */ -/* Error reporting */ -#define PPPOL2TP_MESSAGETYPE_WEN 15 /* WAN Error Notify */ -/* PPP Session Control */ -#define PPPOL2TP_MESSAGETYPE_SLI 16 /* Set Link Info */ - -/* -- AVP - Result code */ -#define PPPOL2TP_AVPTYPE_RESULTCODE 1 /* Result code */ -#define PPPOL2TP_RESULTCODE 1 /* General request to clear control connection */ - -/* -- AVP - Protocol version (!= L2TP Header version) */ -#define PPPOL2TP_AVPTYPE_VERSION 2 -#define PPPOL2TP_VERSION 0x0100 /* L2TP Protocol version 1, revision 0 */ - -/* -- AVP - Framing capabilities */ -#define PPPOL2TP_AVPTYPE_FRAMINGCAPABILITIES 3 /* Bearer capabilities */ -#define PPPOL2TP_FRAMINGCAPABILITIES 0x00000003 /* Async + Sync framing */ - -/* -- AVP - Bearer capabilities */ -#define PPPOL2TP_AVPTYPE_BEARERCAPABILITIES 4 /* Bearer capabilities */ -#define PPPOL2TP_BEARERCAPABILITIES 0x00000003 /* Analog + Digital Access */ - -/* -- AVP - Tie breaker */ -#define PPPOL2TP_AVPTYPE_TIEBREAKER 5 - -/* -- AVP - Host name */ -#define PPPOL2TP_AVPTYPE_HOSTNAME 7 /* Host name */ -#define PPPOL2TP_HOSTNAME "lwIP" /* FIXME: make it configurable */ - -/* -- AVP - Vendor name */ -#define PPPOL2TP_AVPTYPE_VENDORNAME 8 /* Vendor name */ -#define PPPOL2TP_VENDORNAME "lwIP" /* FIXME: make it configurable */ - -/* -- AVP - Assign tunnel ID */ -#define PPPOL2TP_AVPTYPE_TUNNELID 9 /* Assign Tunnel ID */ - -/* -- AVP - Receive window size */ -#define PPPOL2TP_AVPTYPE_RECEIVEWINDOWSIZE 10 /* Receive window size */ -#define PPPOL2TP_RECEIVEWINDOWSIZE 8 /* FIXME: make it configurable */ - -/* -- AVP - Challenge */ -#define PPPOL2TP_AVPTYPE_CHALLENGE 11 /* Challenge */ - -/* -- AVP - Cause code */ -#define PPPOL2TP_AVPTYPE_CAUSECODE 12 /* Cause code*/ - -/* -- AVP - Challenge response */ -#define PPPOL2TP_AVPTYPE_CHALLENGERESPONSE 13 /* Challenge response */ -#define PPPOL2TP_AVPTYPE_CHALLENGERESPONSE_SIZE 16 - -/* -- AVP - Assign session ID */ -#define PPPOL2TP_AVPTYPE_SESSIONID 14 /* Assign Session ID */ - -/* -- AVP - Call serial number */ -#define PPPOL2TP_AVPTYPE_CALLSERIALNUMBER 15 /* Call Serial Number */ - -/* -- AVP - Framing type */ -#define PPPOL2TP_AVPTYPE_FRAMINGTYPE 19 /* Framing Type */ -#define PPPOL2TP_FRAMINGTYPE 0x00000001 /* Sync framing */ - -/* -- AVP - TX Connect Speed */ -#define PPPOL2TP_AVPTYPE_TXCONNECTSPEED 24 /* TX Connect Speed */ -#define PPPOL2TP_TXCONNECTSPEED 100000000 /* Connect speed: 100 Mbits/s */ - -/* L2TP Session state */ -#define PPPOL2TP_STATE_INITIAL 0 -#define PPPOL2TP_STATE_SCCRQ_SENT 1 -#define PPPOL2TP_STATE_ICRQ_SENT 2 -#define PPPOL2TP_STATE_ICCN_SENT 3 -#define PPPOL2TP_STATE_DATA 4 - -#define PPPOL2TP_OUTPUT_DATA_HEADER_LEN 6 /* Our data header len */ - -/* - * PPPoL2TP interface control block. - */ -typedef struct pppol2tp_pcb_s pppol2tp_pcb; -struct pppol2tp_pcb_s { - ppp_pcb *ppp; /* PPP PCB */ - u8_t phase; /* L2TP phase */ - struct udp_pcb *udp; /* UDP L2TP Socket */ - struct netif *netif; /* Output interface, used as a default route */ - ip_addr_t remote_ip; /* LNS IP Address */ - u16_t remote_port; /* LNS port */ -#if PPPOL2TP_AUTH_SUPPORT - const u8_t *secret; /* Secret string */ - u8_t secret_len; /* Secret string length */ - u8_t secret_rv[16]; /* Random vector */ - u8_t challenge_hash[16]; /* Challenge response */ - u8_t send_challenge; /* Boolean whether the next sent packet should contains a challenge response */ -#endif /* PPPOL2TP_AUTH_SUPPORT */ - - u16_t tunnel_port; /* Tunnel port */ - u16_t our_ns; /* NS to peer */ - u16_t peer_nr; /* NR from peer */ - u16_t peer_ns; /* Expected NS from peer */ - u16_t source_tunnel_id; /* Tunnel ID assigned by peer */ - u16_t remote_tunnel_id; /* Tunnel ID assigned to peer */ - u16_t source_session_id; /* Session ID assigned by peer */ - u16_t remote_session_id; /* Session ID assigned to peer */ - - u8_t sccrq_retried; /* number of SCCRQ retries already done */ - u8_t icrq_retried; /* number of ICRQ retries already done */ - u8_t iccn_retried; /* number of ICCN retries already done */ -}; - - -/* Create a new L2TP session. */ -ppp_pcb *pppol2tp_create(struct netif *pppif, - struct netif *netif, const ip_addr_t *ipaddr, u16_t port, - const u8_t *secret, u8_t secret_len, - ppp_link_status_cb_fn link_status_cb, void *ctx_cb); - -#ifdef __cplusplus -} -#endif - -#endif /* PPPOL2TP_H */ -#endif /* PPP_SUPPORT && PPPOL2TP_SUPPORT */ diff --git a/core/c/include/netif/ppp/pppos.h b/core/c/include/netif/ppp/pppos.h deleted file mode 100755 index acaedd7..0000000 --- a/core/c/include/netif/ppp/pppos.h +++ /dev/null @@ -1,126 +0,0 @@ -/** - * @file - * Network Point to Point Protocol over Serial header file. - * - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && PPPOS_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef PPPOS_H -#define PPPOS_H - -#include "lwip/sys.h" - -#include "ppp.h" -#include "vj.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* PPP packet parser states. Current state indicates operation yet to be - * completed. */ -enum { - PDIDLE = 0, /* Idle state - waiting. */ - PDSTART, /* Process start flag. */ - PDADDRESS, /* Process address field. */ - PDCONTROL, /* Process control field. */ - PDPROTOCOL1, /* Process protocol field 1. */ - PDPROTOCOL2, /* Process protocol field 2. */ - PDDATA /* Process data byte. */ -}; - -/* PPPoS serial output callback function prototype */ -typedef u32_t (*pppos_output_cb_fn)(ppp_pcb *pcb, u8_t *data, u32_t len, void *ctx); - -/* - * Extended asyncmap - allows any character to be escaped. - */ -typedef u8_t ext_accm[32]; - -/* - * PPPoS interface control block. - */ -typedef struct pppos_pcb_s pppos_pcb; -struct pppos_pcb_s { - /* -- below are data that will NOT be cleared between two sessions */ - ppp_pcb *ppp; /* PPP PCB */ - pppos_output_cb_fn output_cb; /* PPP serial output callback */ - - /* -- below are data that will be cleared between two sessions - * - * last_xmit must be the first member of cleared members, because it is - * used to know which part must not be cleared. - */ - u32_t last_xmit; /* Time of last transmission. */ - ext_accm out_accm; /* Async-Ctl-Char-Map for output. */ - - /* flags */ - unsigned int open :1; /* Set if PPPoS is open */ - unsigned int pcomp :1; /* Does peer accept protocol compression? */ - unsigned int accomp :1; /* Does peer accept addr/ctl compression? */ - - /* PPPoS rx */ - ext_accm in_accm; /* Async-Ctl-Char-Map for input. */ - struct pbuf *in_head, *in_tail; /* The input packet. */ - u16_t in_protocol; /* The input protocol code. */ - u16_t in_fcs; /* Input Frame Check Sequence value. */ - u8_t in_state; /* The input process state. */ - u8_t in_escaped; /* Escape next character. */ -}; - -/* Create a new PPPoS session. */ -ppp_pcb *pppos_create(struct netif *pppif, pppos_output_cb_fn output_cb, - ppp_link_status_cb_fn link_status_cb, void *ctx_cb); - -#if !NO_SYS && !PPP_INPROC_IRQ_SAFE -/* Pass received raw characters to PPPoS to be decoded through lwIP TCPIP thread. */ -err_t pppos_input_tcpip(ppp_pcb *ppp, u8_t *s, int l); -#endif /* !NO_SYS && !PPP_INPROC_IRQ_SAFE */ - -/* PPP over Serial: this is the input function to be called for received data. */ -void pppos_input(ppp_pcb *ppp, u8_t* data, int len); - - -/* - * Functions called from lwIP - * DO NOT CALL FROM lwIP USER APPLICATION. - */ -#if !NO_SYS && !PPP_INPROC_IRQ_SAFE -err_t pppos_input_sys(struct pbuf *p, struct netif *inp); -#endif /* !NO_SYS && !PPP_INPROC_IRQ_SAFE */ - -#ifdef __cplusplus -} -#endif - -#endif /* PPPOS_H */ -#endif /* PPP_SUPPORT && PPPOL2TP_SUPPORT */ diff --git a/core/c/include/netif/ppp/upap.h b/core/c/include/netif/ppp/upap.h deleted file mode 100755 index 8d90e35..0000000 --- a/core/c/include/netif/ppp/upap.h +++ /dev/null @@ -1,131 +0,0 @@ -/* - * upap.h - User/Password Authentication Protocol definitions. - * - * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The name "Carnegie Mellon University" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For permission or any legal - * details, please contact - * Office of Technology Transfer - * Carnegie Mellon University - * 5000 Forbes Avenue - * Pittsburgh, PA 15213-3890 - * (412) 268-4387, fax: (412) 268-7395 - * tech-transfer@andrew.cmu.edu - * - * 4. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by Computing Services - * at Carnegie Mellon University (http://www.cmu.edu/computing/)." - * - * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO - * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY - * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE - * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN - * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING - * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - * - * $Id: upap.h,v 1.8 2002/12/04 23:03:33 paulus Exp $ - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && PAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef UPAP_H -#define UPAP_H - -#include "ppp.h" - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Packet header = Code, id, length. - */ -#define UPAP_HEADERLEN 4 - - -/* - * UPAP codes. - */ -#define UPAP_AUTHREQ 1 /* Authenticate-Request */ -#define UPAP_AUTHACK 2 /* Authenticate-Ack */ -#define UPAP_AUTHNAK 3 /* Authenticate-Nak */ - - -/* - * Client states. - */ -#define UPAPCS_INITIAL 0 /* Connection down */ -#define UPAPCS_CLOSED 1 /* Connection up, haven't requested auth */ -#define UPAPCS_PENDING 2 /* Connection down, have requested auth */ -#define UPAPCS_AUTHREQ 3 /* We've sent an Authenticate-Request */ -#define UPAPCS_OPEN 4 /* We've received an Ack */ -#define UPAPCS_BADAUTH 5 /* We've received a Nak */ - -/* - * Server states. - */ -#define UPAPSS_INITIAL 0 /* Connection down */ -#define UPAPSS_CLOSED 1 /* Connection up, haven't requested auth */ -#define UPAPSS_PENDING 2 /* Connection down, have requested auth */ -#define UPAPSS_LISTEN 3 /* Listening for an Authenticate */ -#define UPAPSS_OPEN 4 /* We've sent an Ack */ -#define UPAPSS_BADAUTH 5 /* We've sent a Nak */ - - -/* - * Timeouts. - */ -#if 0 /* moved to ppp_opts.h */ -#define UPAP_DEFTIMEOUT 3 /* Timeout (seconds) for retransmitting req */ -#define UPAP_DEFREQTIME 30 /* Time to wait for auth-req from peer */ -#endif /* moved to ppp_opts.h */ - -/* - * Each interface is described by upap structure. - */ -#if PAP_SUPPORT -typedef struct upap_state { - const char *us_user; /* User */ - u8_t us_userlen; /* User length */ - const char *us_passwd; /* Password */ - u8_t us_passwdlen; /* Password length */ - u8_t us_clientstate; /* Client state */ -#if PPP_SERVER - u8_t us_serverstate; /* Server state */ -#endif /* PPP_SERVER */ - u8_t us_id; /* Current id */ - u8_t us_transmits; /* Number of auth-reqs sent */ -} upap_state; -#endif /* PAP_SUPPORT */ - - -void upap_authwithpeer(ppp_pcb *pcb, const char *user, const char *password); -#if PPP_SERVER -void upap_authpeer(ppp_pcb *pcb); -#endif /* PPP_SERVER */ - -extern const struct protent pap_protent; - -#ifdef __cplusplus -} -#endif - -#endif /* UPAP_H */ -#endif /* PPP_SUPPORT && PAP_SUPPORT */ diff --git a/core/c/include/netif/ppp/vj.h b/core/c/include/netif/ppp/vj.h deleted file mode 100755 index 1d91f25..0000000 --- a/core/c/include/netif/ppp/vj.h +++ /dev/null @@ -1,169 +0,0 @@ -/* - * Definitions for tcp compression routines. - * - * $Id: vj.h,v 1.7 2010/02/22 17:52:09 goldsimon Exp $ - * - * Copyright (c) 1989 Regents of the University of California. - * All rights reserved. - * - * Redistribution and use in source and binary forms are permitted - * provided that the above copyright notice and this paragraph are - * duplicated in all such forms and that any documentation, - * advertising materials, and other materials related to such - * distribution and use acknowledge that the software was developed - * by the University of California, Berkeley. The name of the - * University may not be used to endorse or promote products derived - * from this software without specific prior written permission. - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR - * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED - * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. - * - * Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989: - * - Initial distribution. - */ - -#include "netif/ppp/ppp_opts.h" -#if PPP_SUPPORT && VJ_SUPPORT /* don't build if not configured for use in lwipopts.h */ - -#ifndef VJ_H -#define VJ_H - -#include "lwip/ip.h" -#include "lwip/priv/tcp_priv.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define MAX_SLOTS 16 /* must be > 2 and < 256 */ -#define MAX_HDR 128 - -/* - * Compressed packet format: - * - * The first octet contains the packet type (top 3 bits), TCP - * 'push' bit, and flags that indicate which of the 4 TCP sequence - * numbers have changed (bottom 5 bits). The next octet is a - * conversation number that associates a saved IP/TCP header with - * the compressed packet. The next two octets are the TCP checksum - * from the original datagram. The next 0 to 15 octets are - * sequence number changes, one change per bit set in the header - * (there may be no changes and there are two special cases where - * the receiver implicitly knows what changed -- see below). - * - * There are 5 numbers which can change (they are always inserted - * in the following order): TCP urgent pointer, window, - * acknowlegement, sequence number and IP ID. (The urgent pointer - * is different from the others in that its value is sent, not the - * change in value.) Since typical use of SLIP links is biased - * toward small packets (see comments on MTU/MSS below), changes - * use a variable length coding with one octet for numbers in the - * range 1 - 255 and 3 octets (0, MSB, LSB) for numbers in the - * range 256 - 65535 or 0. (If the change in sequence number or - * ack is more than 65535, an uncompressed packet is sent.) - */ - -/* - * Packet types (must not conflict with IP protocol version) - * - * The top nibble of the first octet is the packet type. There are - * three possible types: IP (not proto TCP or tcp with one of the - * control flags set); uncompressed TCP (a normal IP/TCP packet but - * with the 8-bit protocol field replaced by an 8-bit connection id -- - * this type of packet syncs the sender & receiver); and compressed - * TCP (described above). - * - * LSB of 4-bit field is TCP "PUSH" bit (a worthless anachronism) and - * is logically part of the 4-bit "changes" field that follows. Top - * three bits are actual packet type. For backward compatibility - * and in the interest of conserving bits, numbers are chosen so the - * IP protocol version number (4) which normally appears in this nibble - * means "IP packet". - */ - -/* packet types */ -#define TYPE_IP 0x40 -#define TYPE_UNCOMPRESSED_TCP 0x70 -#define TYPE_COMPRESSED_TCP 0x80 -#define TYPE_ERROR 0x00 - -/* Bits in first octet of compressed packet */ -#define NEW_C 0x40 /* flag bits for what changed in a packet */ -#define NEW_I 0x20 -#define NEW_S 0x08 -#define NEW_A 0x04 -#define NEW_W 0x02 -#define NEW_U 0x01 - -/* reserved, special-case values of above */ -#define SPECIAL_I (NEW_S|NEW_W|NEW_U) /* echoed interactive traffic */ -#define SPECIAL_D (NEW_S|NEW_A|NEW_W|NEW_U) /* unidirectional data */ -#define SPECIALS_MASK (NEW_S|NEW_A|NEW_W|NEW_U) - -#define TCP_PUSH_BIT 0x10 - - -/* - * "state" data for each active tcp conversation on the wire. This is - * basically a copy of the entire IP/TCP header from the last packet - * we saw from the conversation together with a small identifier - * the transmit & receive ends of the line use to locate saved header. - */ -struct cstate { - struct cstate *cs_next; /* next most recently used state (xmit only) */ - u16_t cs_hlen; /* size of hdr (receive only) */ - u8_t cs_id; /* connection # associated with this state */ - u8_t cs_filler; - union { - char csu_hdr[MAX_HDR]; - struct ip_hdr csu_ip; /* ip/tcp hdr from most recent packet */ - } vjcs_u; -}; -#define cs_ip vjcs_u.csu_ip -#define cs_hdr vjcs_u.csu_hdr - - -struct vjstat { - u32_t vjs_packets; /* outbound packets */ - u32_t vjs_compressed; /* outbound compressed packets */ - u32_t vjs_searches; /* searches for connection state */ - u32_t vjs_misses; /* times couldn't find conn. state */ - u32_t vjs_uncompressedin; /* inbound uncompressed packets */ - u32_t vjs_compressedin; /* inbound compressed packets */ - u32_t vjs_errorin; /* inbound unknown type packets */ - u32_t vjs_tossed; /* inbound packets tossed because of error */ -}; - -/* - * all the state data for one serial line (we need one of these per line). - */ -struct vjcompress { - struct cstate *last_cs; /* most recently used tstate */ - u8_t last_recv; /* last rcvd conn. id */ - u8_t last_xmit; /* last sent conn. id */ - u16_t flags; - u8_t maxSlotIndex; - u8_t compressSlot; /* Flag indicating OK to compress slot ID. */ -#if LINK_STATS - struct vjstat stats; -#endif - struct cstate tstate[MAX_SLOTS]; /* xmit connection states */ - struct cstate rstate[MAX_SLOTS]; /* receive connection states */ -}; - -/* flag values */ -#define VJF_TOSS 1U /* tossing rcvd frames because of input err */ - -extern void vj_compress_init (struct vjcompress *comp); -extern u8_t vj_compress_tcp (struct vjcompress *comp, struct pbuf **pb); -extern void vj_uncompress_err (struct vjcompress *comp); -extern int vj_uncompress_uncomp(struct pbuf *nb, struct vjcompress *comp); -extern int vj_uncompress_tcp (struct pbuf **nb, struct vjcompress *comp); - -#ifdef __cplusplus -} -#endif - -#endif /* VJ_H */ - -#endif /* PPP_SUPPORT && VJ_SUPPORT */ diff --git a/core/c/include/netif/slipif.h b/core/c/include/netif/slipif.h deleted file mode 100755 index 4e68c94..0000000 --- a/core/c/include/netif/slipif.h +++ /dev/null @@ -1,87 +0,0 @@ -/** - * @file - * - * SLIP netif API - */ - -/* - * Copyright (c) 2001, Swedish Institute of Computer Science. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Adam Dunkels - * - */ -#ifndef LWIP_HDR_NETIF_SLIPIF_H -#define LWIP_HDR_NETIF_SLIPIF_H - -#include "lwip/opt.h" -#include "lwip/netif.h" - -/** Set this to 1 to start a thread that blocks reading on the serial line - * (using sio_read()). - */ -#ifndef SLIP_USE_RX_THREAD -#define SLIP_USE_RX_THREAD !NO_SYS -#endif - -/** Set this to 1 to enable functions to pass in RX bytes from ISR context. - * If enabled, slipif_received_byte[s]() process incoming bytes and put assembled - * packets on a queue, which is fed into lwIP from slipif_poll(). - * If disabled, slipif_poll() polls the serial line (using sio_tryread()). - */ -#ifndef SLIP_RX_FROM_ISR -#define SLIP_RX_FROM_ISR 0 -#endif - -/** Set this to 1 (default for SLIP_RX_FROM_ISR) to queue incoming packets - * received by slipif_received_byte[s]() as long as PBUF_POOL pbufs are available. - * If disabled, packets will be dropped if more than one packet is received. - */ -#ifndef SLIP_RX_QUEUE -#define SLIP_RX_QUEUE SLIP_RX_FROM_ISR -#endif - -#ifdef __cplusplus -extern "C" { -#endif - -err_t slipif_init(struct netif * netif); -void slipif_poll(struct netif *netif); -#if SLIP_RX_FROM_ISR -void slipif_process_rxqueue(struct netif *netif); -void slipif_received_byte(struct netif *netif, u8_t data); -void slipif_received_bytes(struct netif *netif, u8_t *data, u8_t len); -#endif /* SLIP_RX_FROM_ISR */ - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_HDR_NETIF_SLIPIF_H */ - diff --git a/core/c/include/netif/zepif.h b/core/c/include/netif/zepif.h deleted file mode 100755 index 059c8b0..0000000 --- a/core/c/include/netif/zepif.h +++ /dev/null @@ -1,81 +0,0 @@ -/** - * @file - * - * A netif implementing the ZigBee Eencapsulation Protocol (ZEP). - * This is used to tunnel 6LowPAN over UDP. - */ - -/* - * Copyright (c) 2018 Simon Goldschmidt - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - * Author: Simon Goldschmidt - * - */ - -#ifndef LWIP_HDR_ZEPIF_H -#define LWIP_HDR_ZEPIF_H - -#include "lwip/opt.h" -#include "netif/lowpan6.h" - -#if LWIP_IPV6 && LWIP_UDP /* don't build if not configured for use in lwipopts.h */ - -#include "lwip/netif.h" - -#ifdef __cplusplus -extern "C" { -#endif - -#define ZEPIF_DEFAULT_UDP_PORT 17754 - -/** Pass this struct as 'state' to netif_add to control the behaviour - * of this netif. If NULL is passed, default behaviour is chosen */ -struct zepif_init { - /** The UDP port used to ZEP frames from (0 = default) */ - u16_t zep_src_udp_port; - /** The UDP port used to ZEP frames to (0 = default) */ - u16_t zep_dst_udp_port; - /** The IP address to sed ZEP frames from (NULL = ANY) */ - const ip_addr_t *zep_src_ip_addr; - /** The IP address to sed ZEP frames to (NULL = BROADCAST) */ - const ip_addr_t *zep_dst_ip_addr; - /** If != NULL, the udp pcb is bound to this netif */ - const struct netif *zep_netif; - /** MAC address of the 6LowPAN device */ - u8_t addr[6]; -}; - -err_t zepif_init(struct netif *netif); - -#ifdef __cplusplus -} -#endif - -#endif /* LWIP_IPV6 && LWIP_UDP */ - -#endif /* LWIP_HDR_ZEPIF_H */ diff --git a/core/c/include/posix/errno.h b/core/c/include/posix/errno.h deleted file mode 100755 index 420f554..0000000 --- a/core/c/include/posix/errno.h +++ /dev/null @@ -1,33 +0,0 @@ -/** - * @file - * This file is a posix wrapper for lwip/errno.h. - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "lwip/errno.h" diff --git a/core/c/include/posix/netdb.h b/core/c/include/posix/netdb.h deleted file mode 100755 index 29abbaf..0000000 --- a/core/c/include/posix/netdb.h +++ /dev/null @@ -1,33 +0,0 @@ -/** - * @file - * This file is a posix wrapper for lwip/netdb.h. - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "lwip/netdb.h" diff --git a/core/c/include/posix/sys/socket.h b/core/c/include/posix/sys/socket.h deleted file mode 100755 index 68267e5..0000000 --- a/core/c/include/posix/sys/socket.h +++ /dev/null @@ -1,33 +0,0 @@ -/** - * @file - * This file is a posix wrapper for lwip/sockets.h. - */ - -/* - * Redistribution and use in source and binary forms, with or without modification, - * are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright notice, - * this list of conditions and the following disclaimer in the documentation - * and/or other materials provided with the distribution. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT - * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, - * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT - * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING - * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY - * OF SUCH DAMAGE. - * - * This file is part of the lwIP TCP/IP stack. - * - */ - -#include "lwip/sockets.h" diff --git a/core/c_core.go b/core/c_core.go deleted file mode 100755 index cc21229..0000000 --- a/core/c_core.go +++ /dev/null @@ -1,22 +0,0 @@ -package core - -/* -#include "c/core/init.c" -#include "c/core/def.c" -#include "c/core/dns.c" -#include "c/core/inet_chksum.c" -#include "c/core/ip.c" -#include "c/core/mem.c" -#include "c/core/memp.c" -#include "c/core/netif.c" -#include "c/core/pbuf.c" -#include "c/core/raw.c" -#include "c/core/stats.c" -#include "c/core/sys.c" -#include "c/core/tcp.c" -#include "c/core/tcp_in.c" -#include "c/core/tcp_out.c" -#include "c/core/timeouts.c" -#include "c/core/udp.c" -*/ -import "C" diff --git a/core/c_core_4.go b/core/c_core_4.go deleted file mode 100755 index 98f4cda..0000000 --- a/core/c_core_4.go +++ /dev/null @@ -1,13 +0,0 @@ -package core - -/* -#include "c/core/ipv4/autoip.c" -#include "c/core/ipv4/dhcp.c" -#include "c/core/ipv4/etharp.c" -#include "c/core/ipv4/icmp.c" -#include "c/core/ipv4/igmp.c" -#include "c/core/ipv4/ip4_frag.c" -#include "c/core/ipv4/ip4.c" -#include "c/core/ipv4/ip4_addr.c" -*/ -import "C" diff --git a/core/c_core_6.go b/core/c_core_6.go deleted file mode 100755 index c8a6b7f..0000000 --- a/core/c_core_6.go +++ /dev/null @@ -1,14 +0,0 @@ -package core - -/* -#include "c/core/ipv6/dhcp6.c" -#include "c/core/ipv6/ethip6.c" -#include "c/core/ipv6/icmp6.c" -#include "c/core/ipv6/inet6.c" -#include "c/core/ipv6/ip6.c" -#include "c/core/ipv6/ip6_addr.c" -#include "c/core/ipv6/ip6_frag.c" -#include "c/core/ipv6/mld6.c" -#include "c/core/ipv6/nd6.c" -*/ -import "C" diff --git a/core/c_custom.go b/core/c_custom.go deleted file mode 100755 index f2aa106..0000000 --- a/core/c_custom.go +++ /dev/null @@ -1,7 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/custom -#include "c/custom/sys_arch.c" -*/ -import "C" diff --git a/core/conn.go b/core/conn.go deleted file mode 100755 index f25974c..0000000 --- a/core/conn.go +++ /dev/null @@ -1,82 +0,0 @@ -package core - -import ( - "net" - "time" -) - -// TCPConn abstracts a TCP connection comming from TUN. This connection -// should be handled by a registered TCP proxy handler. It's important -// to note that callback members are called from lwIP, they are already -// in the lwIP thread when they are called, that is, they are holding -// the lwipMutex. -type TCPConn interface { - // Sent will be called when sent data has been acknowledged by peer. - Sent(len uint16) error - - // Receive will be called when data arrives from TUN. - Receive(data []byte) error - - // Err will be called when a fatal error has occurred on the connection. - // The corresponding pcb is already freed when this callback is called - Err(err error) - - // LocalClosed will be called when lwIP receives a FIN segment on a - // connection. - LocalClosed() error - - // Poll will be periodically called by TCP timers. - Poll() error - - // RemoteAddr returns the destination network address. - RemoteAddr() net.Addr - - // LocalAddr returns the local client network address. - LocalAddr() net.Addr - - // Read reads data comming from TUN, note that it reads from an - // underlying pipe that the writer writes in the lwip thread, - // write op blocks until previous written data is consumed, one - // should read out all data as soon as possible. - Read(data []byte) (int, error) - - // Write writes data to TUN. - Write(data []byte) (int, error) - - // Close closes the connection. - Close() error - - // CloseWrite closes the writing side by sending a FIN - // segment to local peer. That means we can write no further - // data to TUN. - CloseWrite() error - - // CloseRead closes the reading side. That means we can no longer - // read more from TUN. - CloseRead() error - - // Abort aborts the connection by sending a RST segment. - Abort() - - SetDeadline(t time.Time) error - SetReadDeadline(t time.Time) error - SetWriteDeadline(t time.Time) error -} - -// TCPConn abstracts a UDP connection comming from TUN. This connection -// should be handled by a registered UDP proxy handler. -type UDPConn interface { - // LocalAddr returns the local client network address. - LocalAddr() *net.UDPAddr - - // ReceiveTo will be called when data arrives from TUN, and the received - // data should be sent to addr. - ReceiveTo(data []byte, addr *net.UDPAddr) error - - // WriteFrom writes data to TUN, addr will be set as source address of - // UDP packets that output to TUN. - WriteFrom(data []byte, addr *net.UDPAddr) (int, error) - - // Close closes the connection. - Close() error -} diff --git a/core/core_test.go b/core/core_test.go deleted file mode 100755 index 9b5e1ad..0000000 --- a/core/core_test.go +++ /dev/null @@ -1,134 +0,0 @@ -package core - -import ( - "bytes" - "encoding/hex" - "net" - "sync" - "testing" -) - -const ( - ipv4Header = 20 // Length of the IPv4 header in bytes. - udpHeader = 8 // Length of the UDP header in bytes. - // A small NTP query packet (UDP) - ntpHex = "45b8004c72e94000401125a2646a4100d8ef2304007b007b0038a1a7230209e8000003620000072ed8ef230ce10ff888c730e992e10ffbdbc742a583e10ffbdbcaa4151ae10ffde6c3cf01e3" - // Two fragments of a large UDP packet. - frag1Hex = "450003fc0001200040117bab646a41005db8d8220afa00000774af62691c476d4d1f5bd3b2d5f17b926562b91de7ab5ee5bea9fe13ed6223891668ab17e4236a4ec1bed53fb9db397f2885e0fd418dbe2f29416b3e01dfa633bd72d1486e6aa39d568a4b9906834ba06d0c39f9696cbbe96c13638c4cef0fedab2f17d9aa3eb87b6fcf7a3e614cbf7cc7141fbf174d97ef220f17d7e669752bad3965785ec1355b19a3adea31a6c148a0b77ade200962dc4f02ad302e1f927c537627dc1f56f613e1a9d69847a8adc5b965059e973312c013f3916f6c54ddedb96605590f9d81e39e3649d007a44e1b57d9086487c073b511da5b868a44ad043e013feb23903eade049bcac0c0486c6e832aabce435a054159242a27784260bdbe8318f677dc58cbcc90f5ec7a065504b8ddd66c5a53480e634deed9b075a9d23dbabd37c97a825e2c6d17b179bbe83a35b09c852db9aa8d04ee23f285d83c68ae808c1a16cb2ed7c93e1d9724c1e0f4e413dfd50814f12d648201bc3352dd87640609937db0eef31c335b182e6969b32a50cd7af1116013caeeccc9417d0918bbfb1320cdb6e215b6a0c70654bb196e99636b70c503d9d1837f1a33f4a43913390f2585b361c33912cf16ccbb0a5cfbba90be9c3a360cf11193b9738b1a1459860e0bb99418df9368174a9184aac6f9ecb1299876ce62ab5028f48cf6c93b58b4fb1ced3199d36ae9dfa4b4eb9109ca62f8b186c912939018a8257b79a93cec689223b04a62de256019d56dbe54ba989b1f22aa00ea81e50b0895b152d7841416e9f5ed209d99cb38534820c82b4298a8d93afdc134aa41a2e3cd62d43419873ac8d17487de28b15e186eefe538c2019023086923b3f9aec506589fb5504f483dd820993f6950262231cb0f914415d37a929a77c435ba3ecdab90a817d683abd4dc8028c3294770d4ee28ea71eb09fc027b9dc9afedc00fbe414eef5756d409909786c82186fce59f4305ad3ca47d72d59d2bff2224f5a2115f01bee7b71552160fefd14587f150a67ffc08e92c73f40d8ad7b6b900324ae56ea84eccdbb2872f644cea1b2e011e862f2dba10dbac8452f53a2c6c9ac9d5b33ab03fa16a1f146197d1c649ee2c65636f4973b916190107b1977fb55f4157ff57e62251d3a3e0fcc3357665c13287009a3f11fc0cfe4495a4b9bb981b0893fd06c938c5d99e3b7e68d6ad16326ea54314d5c6a428cf105bf95aea4e8374bd7ff81ecc5b6b9f050dc6482aa123c470d7c068a2f171949cb5dee61ddf3c40ec97099c527926dddb84b0ffa3f69564bb3b9632da0fc6914a80e2044793ac302e3763d762f42abc07b0ed52968f09e96ce3e5fa83822a5d35548973fdda478610fa39355db82bb4c743479743c32a93521082a131cd21439bca3735c8b01d295c67b8dfe8a0071487d8472" - frag2Hex = "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" -) - -var ntp, ntpPayload, frag1, frag2, fragPayload []byte - -func decode(s string) []byte { - b, err := hex.DecodeString(s) - if err != nil { - panic(err) - } - return b -} - -// This is a trivial UDP handler that sends each received packet to a channel for inspection. -type fakeUDPHandler struct { - UDPConnHandler - packets chan []byte -} - -func (h *fakeUDPHandler) Connect(conn UDPConn, target *net.UDPAddr) error { - return nil -} - -func (h *fakeUDPHandler) ReceiveTo(conn UDPConn, data []byte, addr *net.UDPAddr) error { - h.packets <- data - return nil -} - -func setupUDP(t *testing.T) (LWIPStack, *fakeUDPHandler) { - // Reinitialize source data before each test to avoid interference. - ntp = decode(ntpHex) - ntpPayload = ntp[ipv4Header+udpHeader:] - frag1 = decode(frag1Hex) - frag2 = decode(frag2Hex) - fragPayload = append([]byte(nil), frag1[ipv4Header+udpHeader:]...) - fragPayload = append(fragPayload, frag2[ipv4Header:]...) - - // Reset the set of known UDP connections to empty before each test. Otherwise, the - // tests will interfere with each other. - udpConns = sync.Map{} - - s := NewLWIPStack() - // This channel is buffered because the first Write->ReceiveTo can either be synchronous or - // asynchronous, depending on the results of a race during "connection". - h := &fakeUDPHandler{packets: make(chan []byte, 1)} - RegisterUDPConnHandler(h) - return s, h -} - -func write(s LWIPStack, b []byte, t *testing.T) { - if _, err := s.Write(b); err != nil { - t.Fatal(err) - } -} - -func checkedCopy(dst, src []byte, t *testing.T) { - if copy(dst, src) != len(src) { - t.Fatal("Copy failed due to test misconfiguration") - } -} - -func assertEqual(actual, expected []byte, t *testing.T) { - if !bytes.Equal(actual, expected) { - t.Error("Payloads are not equal") - } -} - -// Basic test for sending a single UDP packet. -func TestUDP(t *testing.T) { - s, h := setupUDP(t) - write(s, ntp, t) - assertEqual(<-h.packets, ntpPayload, t) -} - -// Send a fragmented UDP packet. -func TestUDPFragmentation(t *testing.T) { - s, h := setupUDP(t) - write(s, frag1, t) - write(s, frag2, t) - assertEqual(<-h.packets, fragPayload, t) -} - -// Write UDP fragments out of order. -func TestUDPFragmentReordering(t *testing.T) { - s, h := setupUDP(t) - write(s, frag2, t) - write(s, frag1, t) - assertEqual(<-h.packets, fragPayload, t) -} - -// Send a fragmented UDP packet where fragments reuse the same buffer. -func TestUDPFragmentationMemory(t *testing.T) { - s, h := setupUDP(t) - buf := make([]byte, len(frag1)) - - checkedCopy(buf, frag1, t) - write(s, buf[:len(frag1)], t) - - checkedCopy(buf, frag2, t) - write(s, buf[:len(frag2)], t) - - assertEqual(<-h.packets, fragPayload, t) -} - -// Regression test for a segmentation fault. -func TestUDPFragmentationMemoryAndReordering(t *testing.T) { - s, h := setupUDP(t) - buf := make([]byte, len(frag1)) - - checkedCopy(buf, frag2, t) - write(s, buf[:len(frag2)], t) - - checkedCopy(buf, frag1, t) - write(s, buf[:len(frag1)], t) - - assertEqual(<-h.packets, fragPayload, t) -} diff --git a/core/errors.go b/core/errors.go deleted file mode 100755 index 0e0e7a4..0000000 --- a/core/errors.go +++ /dev/null @@ -1,60 +0,0 @@ -package core - -// Error codes defined in lwIP. -// /** Definitions for error constants. */ -// typedef enum { -// /** No error, everything OK. */ -// ERR_OK = 0, -// /** Out of memory error. */ -// ERR_MEM = -1, -// /** Buffer error. */ -// ERR_BUF = -2, -// /** Timeout. */ -// ERR_TIMEOUT = -3, -// /** Routing problem. */ -// ERR_RTE = -4, -// /** Operation in progress */ -// ERR_INPROGRESS = -5, -// /** Illegal value. */ -// ERR_VAL = -6, -// /** Operation would block. */ -// ERR_WOULDBLOCK = -7, -// /** Address in use. */ -// ERR_USE = -8, -// /** Already connecting. */ -// ERR_ALREADY = -9, -// /** Conn already established.*/ -// ERR_ISCONN = -10, -// /** Not connected. */ -// ERR_CONN = -11, -// /** Low-level netif error */ -// ERR_IF = -12, -// -// /** Connection aborted. */ -// ERR_ABRT = -13, -// /** Connection reset. */ -// ERR_RST = -14, -// /** Connection closed. */ -// ERR_CLSD = -15, -// /** Illegal argument. */ -// ERR_ARG = -16 -// } err_enum_t; - -const ( - LWIP_ERR_OK int = iota - LWIP_ERR_ABRT - LWIP_ERR_CONN - LWIP_ERR_CLSD -) - -type lwipError struct { - Code int -} - -func NewLWIPError(code int) error { - return &lwipError{Code: code} -} - -func (e *lwipError) Error() string { - return "error code " + string(e.Code) -} diff --git a/core/handler.go b/core/handler.go deleted file mode 100755 index e23d10a..0000000 --- a/core/handler.go +++ /dev/null @@ -1,31 +0,0 @@ -package core - -import ( - "net" -) - -// TCPConnHandler handles TCP connections comming from TUN. -type TCPConnHandler interface { - // Handle handles the conn for target. - Handle(conn net.Conn, target *net.TCPAddr) error -} - -// UDPConnHandler handles UDP connections comming from TUN. -type UDPConnHandler interface { - // Connect connects the proxy server. Note that target can be nil. - Connect(conn UDPConn, target *net.UDPAddr) error - - // ReceiveTo will be called when data arrives from TUN. - ReceiveTo(conn UDPConn, data []byte, addr *net.UDPAddr) error -} - -var tcpConnHandler TCPConnHandler -var udpConnHandler UDPConnHandler - -func RegisterTCPConnHandler(h TCPConnHandler) { - tcpConnHandler = h -} - -func RegisterUDPConnHandler(h UDPConnHandler) { - udpConnHandler = h -} diff --git a/core/input.go b/core/input.go deleted file mode 100755 index 66a7f68..0000000 --- a/core/input.go +++ /dev/null @@ -1,127 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/pbuf.h" -#include "lwip/tcp.h" - -err_t -input(struct pbuf *p) -{ - return (*netif_list).input(p, netif_list); -} -*/ -import "C" -import ( - "encoding/binary" - "errors" - "unsafe" -) - -type ipver byte - -const ( - ipv4 = 4 - ipv6 = 6 -) - -type proto byte - -const ( - proto_icmp = 1 - proto_tcp = 6 - proto_udp = 17 -) - -func peekIPVer(p []byte) (ipver, error) { - if len(p) < 1 { - return 0, errors.New("short IP packet") - } - return ipver((p[0] & 0xf0) >> 4), nil -} - -func moreFrags(ipv ipver, p []byte) bool { - switch ipv { - case ipv4: - if (p[6] & 0x20) > 0 /* has MF (More Fragments) bit set */ { - return true - } - case ipv6: - // FIXME Just too lazy to implement this for IPv6, for now - // returning true simply indicate do the copy anyway. - return true - } - return false -} - -func fragOffset(ipv ipver, p []byte) uint16 { - switch ipv { - case ipv4: - return binary.BigEndian.Uint16(p[6:8]) & 0x1fff - case ipv6: - // FIXME Just too lazy to implement this for IPv6, for now - // returning a value greater than 0 simply indicate do the - // copy anyway. - return 1 - } - return 0 -} - -func peekNextProto(ipv ipver, p []byte) (proto, error) { - switch ipv { - case ipv4: - if len(p) < 9 { - return 0, errors.New("short IPv4 packet") - } - return proto(p[9]), nil - case ipv6: - if len(p) < 6 { - return 0, errors.New("short IPv6 packet") - } - return proto(p[6]), nil - default: - return 0, errors.New("unknown IP version") - } -} - -func input(pkt []byte) (int, error) { - if len(pkt) == 0 { - return 0, nil - } - - ipv, err := peekIPVer(pkt) - if err != nil { - return 0, err - } - - nextProto, err := peekNextProto(ipv, pkt) - if err != nil { - return 0, err - } - - lwipMutex.Lock() - defer lwipMutex.Unlock() - - var buf *C.struct_pbuf - - if nextProto == proto_udp && !(moreFrags(ipv, pkt) || fragOffset(ipv, pkt) > 0) { - // Copying data is not necessary for unfragmented UDP packets, and we would like to - // have all data in one pbuf. - buf = C.pbuf_alloc_reference(unsafe.Pointer(&pkt[0]), C.u16_t(len(pkt)), C.PBUF_REF) - } else { - // TODO Copy the data only when lwip need to keep it, e.g. in - // case we are returning ERR_CONN in tcpRecvFn. - // - // Allocating from PBUF_POOL results in a pbuf chain that may - // contain multiple pbufs. - buf = C.pbuf_alloc(C.PBUF_RAW, C.u16_t(len(pkt)), C.PBUF_POOL) - C.pbuf_take(buf, unsafe.Pointer(&pkt[0]), C.u16_t(len(pkt))) - } - - ierr := C.input(buf) - if ierr != C.ERR_OK { - C.pbuf_free(buf) - return 0, errors.New("packet not handled") - } - return len(pkt), nil -} diff --git a/core/lwip.go b/core/lwip.go deleted file mode 100755 index 9ba76e4..0000000 --- a/core/lwip.go +++ /dev/null @@ -1,170 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/tcp.h" -#include "lwip/udp.h" -#include "lwip/timeouts.h" -*/ -import "C" -import ( - "context" - "errors" - "sync" - "time" - "unsafe" -) - -const CHECK_TIMEOUTS_INTERVAL = 250 // in millisecond -const TCP_POLL_INTERVAL = 8 // poll every 4 seconds - -type LWIPStack interface { - Write([]byte) (int, error) - Close() error - RestartTimeouts() -} - -// lwIP runs in a single thread, locking is needed in Go runtime. -var lwipMutex = &sync.Mutex{} - -type lwipStack struct { - tpcb *C.struct_tcp_pcb - upcb *C.struct_udp_pcb - - ctx context.Context - cancel context.CancelFunc -} - -// NewLWIPStack listens for any incoming connections/packets and registers -// corresponding accept/recv callback functions. -func NewLWIPStack() LWIPStack { - tcpPCB := C.tcp_new() - if tcpPCB == nil { - panic("tcp_new return nil") - } - - err := C.tcp_bind(tcpPCB, C.IP_ADDR_ANY, 0) - switch err { - case C.ERR_OK: - break - case C.ERR_VAL: - panic("invalid PCB state") - case C.ERR_USE: - panic("port in use") - default: - C.memp_free(C.MEMP_TCP_PCB, unsafe.Pointer(tcpPCB)) - panic("unknown tcp_bind return value") - } - - tcpPCB = C.tcp_listen_with_backlog(tcpPCB, C.TCP_DEFAULT_LISTEN_BACKLOG) - if tcpPCB == nil { - panic("can not allocate tcp pcb") - } - - setTCPAcceptCallback(tcpPCB) - - udpPCB := C.udp_new() - if udpPCB == nil { - panic("could not allocate udp pcb") - } - - err = C.udp_bind(udpPCB, C.IP_ADDR_ANY, 0) - if err != C.ERR_OK { - panic("address already in use") - } - - setUDPRecvCallback(udpPCB, nil) - - ctx, cancel := context.WithCancel(context.Background()) - - go func() { - for { - select { - case <-time.After(CHECK_TIMEOUTS_INTERVAL * time.Millisecond): - lwipMutex.Lock() - C.sys_check_timeouts() - lwipMutex.Unlock() - case <-ctx.Done(): - return - } - } - }() - - return &lwipStack{ - tpcb: tcpPCB, - upcb: udpPCB, - ctx: ctx, - cancel: cancel, - } -} - -// Write writes IP packets to the stack. -func (s *lwipStack) Write(data []byte) (int, error) { - select { - case <-s.ctx.Done(): - return 0, errors.New("stack closed") - default: - return input(data) - } -} - -// RestartTimeouts rebases the timeout times to the current time. -// -// This is necessary if sys_check_timeouts() hasn't been called for a long -// time (e.g. while saving energy) to prevent all timer functions of that -// period being called. -func (s *lwipStack) RestartTimeouts() { - lwipMutex.Lock() - C.sys_restart_timeouts() - lwipMutex.Unlock() -} - -// Close closes the stack. -// -// Timer events will be canceled and existing connections will be closed. -// Note this function will not free objects allocated in lwIP initialization -// stage, e.g. the loop interface. -func (s *lwipStack) Close() error { - // Stop firing timer events. - s.cancel() - - // Abort and close all TCP and UDP connections. - tcpConns.Range(func(_, c interface{}) bool { - c.(*tcpConn).Abort() - return true - }) - udpConns.Range(func(_, c interface{}) bool { - // This only closes UDP connections in the core, - // UDP connections in the handler will wait till - // timeout, they are not closed immediately for - // now. - c.(*udpConn).Close() - return true - }) - - // Remove callbacks and close listening pcbs. - lwipMutex.Lock() - C.tcp_accept(s.tpcb, nil) - C.udp_recv(s.upcb, nil, nil) - C.tcp_close(s.tpcb) // FIXME handle error - C.udp_remove(s.upcb) - lwipMutex.Unlock() - - return nil -} - -func init() { - // Initialize lwIP. - // - // There is a little trick here, a loop interface (127.0.0.1) - // is created in the initialization stage due to the option - // `#define LWIP_HAVE_LOOPIF 1` in `lwipopts.h`, so we need - // not create our own interface. - // - // Now the loop interface is just the first element in - // `C.netif_list`, i.e. `*C.netif_list`. - lwipInit() - - // Set MTU. - C.netif_list.mtu = 1500 -} diff --git a/core/lwip_other.go b/core/lwip_other.go deleted file mode 100755 index d57be78..0000000 --- a/core/lwip_other.go +++ /dev/null @@ -1,13 +0,0 @@ -// +build linux darwin - -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/init.h" -*/ -import "C" - -func lwipInit() { - C.lwip_init() // Initialze modules. -} diff --git a/core/lwip_windows.go b/core/lwip_windows.go deleted file mode 100755 index 3844e89..0000000 --- a/core/lwip_windows.go +++ /dev/null @@ -1,15 +0,0 @@ -// +build windows - -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/sys.h" -#include "lwip/init.h" -*/ -import "C" - -func lwipInit() { - C.sys_init() // Initialze sys_arch layer, must be called before anything else. - C.lwip_init() // Initialze modules. -} diff --git a/core/output.go b/core/output.go deleted file mode 100755 index 3c878e8..0000000 --- a/core/output.go +++ /dev/null @@ -1,46 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/tcp.h" - -extern err_t output(struct pbuf *p); - -err_t -output_ip4(struct netif *netif, struct pbuf *p, const ip4_addr_t *ipaddr) -{ - return output(p); -} - -err_t -output_ip6(struct netif *netif, struct pbuf *p, const ip6_addr_t *ipaddr) -{ - return output(p); -} - -void -set_output() -{ - if (netif_list != NULL) { - (*netif_list).output = output_ip4; - (*netif_list).output_ip6 = output_ip6; - } -} -*/ -import "C" -import ( - "errors" -) - -var OutputFn func([]byte) (int, error) - -func RegisterOutputFn(fn func([]byte) (int, error)) { - OutputFn = fn - C.set_output() -} - -func init() { - OutputFn = func(data []byte) (int, error) { - return 0, errors.New("output function not set") - } -} diff --git a/core/output_export.go b/core/output_export.go deleted file mode 100755 index 79ae18a..0000000 --- a/core/output_export.go +++ /dev/null @@ -1,28 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/tcp.h" -*/ -import "C" -import ( - "unsafe" -) - -//export output -func output(p *C.struct_pbuf) C.err_t { - // In most case, all data are in the same pbuf struct, data copying can be avoid by - // backing Go slice with C array. Buf if there are multiple pbuf structs holding the - // data, we must copy data for sending them in one pass. - totlen := int(p.tot_len) - if p.tot_len == p.len { - buf := (*[1 << 30]byte)(unsafe.Pointer(p.payload))[:totlen:totlen] - OutputFn(buf[:totlen]) - } else { - buf := NewBytes(totlen) - C.pbuf_copy_partial(p, unsafe.Pointer(&buf[0]), p.tot_len, 0) // data copy here! - OutputFn(buf[:totlen]) - FreeBytes(buf) - } - return C.ERR_OK -} diff --git a/core/tcp_callback.go b/core/tcp_callback.go deleted file mode 100755 index ba385b1..0000000 --- a/core/tcp_callback.go +++ /dev/null @@ -1,62 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/tcp.h" - -extern err_t tcpAcceptFn(void *arg, struct tcp_pcb *newpcb, err_t err); - -void -set_tcp_accept_callback(struct tcp_pcb *pcb) { - tcp_accept(pcb, tcpAcceptFn); -} - -extern err_t tcpRecvFn(void *arg, struct tcp_pcb *tpcb, struct pbuf *p, err_t err); - -void -set_tcp_recv_callback(struct tcp_pcb *pcb) { - tcp_recv(pcb, tcpRecvFn); -} - -extern err_t tcpSentFn(void *arg, struct tcp_pcb *tpcb, u16_t len); - -void -set_tcp_sent_callback(struct tcp_pcb *pcb) { - tcp_sent(pcb, tcpSentFn); -} - -extern void tcpErrFn(void *arg, err_t err); - -void -set_tcp_err_callback(struct tcp_pcb *pcb) { - tcp_err(pcb, tcpErrFn); -} - -extern err_t tcpPollFn(void *arg, struct tcp_pcb *tpcb); - -void -set_tcp_poll_callback(struct tcp_pcb *pcb, u8_t interval) { - tcp_poll(pcb, tcpPollFn, interval); -} -*/ -import "C" - -func setTCPAcceptCallback(pcb *C.struct_tcp_pcb) { - C.set_tcp_accept_callback(pcb) -} - -func setTCPRecvCallback(pcb *C.struct_tcp_pcb) { - C.set_tcp_recv_callback(pcb) -} - -func setTCPSentCallback(pcb *C.struct_tcp_pcb) { - C.set_tcp_sent_callback(pcb) -} - -func setTCPErrCallback(pcb *C.struct_tcp_pcb) { - C.set_tcp_err_callback(pcb) -} - -func setTCPPollCallback(pcb *C.struct_tcp_pcb, interval C.u8_t) { - C.set_tcp_poll_callback(pcb, interval) -} diff --git a/core/tcp_callback_export.go b/core/tcp_callback_export.go deleted file mode 100755 index e936fe8..0000000 --- a/core/tcp_callback_export.go +++ /dev/null @@ -1,165 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/tcp.h" -*/ -import "C" -import ( - "errors" - "fmt" - "unsafe" -) - -// These exported callback functions must be placed in a seperated file. -// -// See also: -// https://github.com/golang/go/issues/20639 -// https://golang.org/cmd/cgo/#hdr-C_references_to_Go - -//export tcpAcceptFn -func tcpAcceptFn(arg unsafe.Pointer, newpcb *C.struct_tcp_pcb, err C.err_t) C.err_t { - if err != C.ERR_OK { - return err - } - - if tcpConnHandler == nil { - panic("must register a TCP connection handler") - } - - if _, nerr := newTCPConn(newpcb, tcpConnHandler); nerr != nil { - switch nerr.(*lwipError).Code { - case LWIP_ERR_ABRT: - return C.ERR_ABRT - case LWIP_ERR_OK: - return C.ERR_OK - default: - return C.ERR_CONN - } - } - - return C.ERR_OK -} - -//export tcpRecvFn -func tcpRecvFn(arg unsafe.Pointer, tpcb *C.struct_tcp_pcb, p *C.struct_pbuf, err C.err_t) C.err_t { - if err != C.ERR_OK && err != C.ERR_ABRT { - return err - } - - // Only free the pbuf when returning ERR_OK or ERR_ABRT, - // otherwise must not free the pbuf. - shouldFreePbuf := true - defer func() { - if p != nil && shouldFreePbuf { - C.pbuf_free(p) - } - }() - - conn, ok := tcpConns.Load(getConnKeyVal(arg)) - if !ok { - // The connection does not exists. - C.tcp_abort(tpcb) - return C.ERR_ABRT - } - - if p == nil { - // Peer closed, EOF. - err := conn.(TCPConn).LocalClosed() - switch err.(*lwipError).Code { - case LWIP_ERR_ABRT: - return C.ERR_ABRT - case LWIP_ERR_OK: - return C.ERR_OK - default: - panic("unexpected error") - } - } - - var buf []byte - var totlen = int(p.tot_len) - if p.tot_len == p.len { - buf = (*[1 << 30]byte)(unsafe.Pointer(p.payload))[:totlen:totlen] - } else { - buf = NewBytes(totlen) - defer FreeBytes(buf) - C.pbuf_copy_partial(p, unsafe.Pointer(&buf[0]), p.tot_len, 0) - } - - rerr := conn.(TCPConn).Receive(buf[:totlen]) - if rerr != nil { - switch rerr.(*lwipError).Code { - case LWIP_ERR_ABRT: - return C.ERR_ABRT - case LWIP_ERR_OK: - return C.ERR_OK - case LWIP_ERR_CONN: - shouldFreePbuf = false - // Tell lwip we can't receive data at the moment, - // lwip will store it and try again later. - return C.ERR_CONN - case LWIP_ERR_CLSD: - // lwip won't handle ERR_CLSD error for us, manually - // shuts down the rx side. - C.tcp_recved(tpcb, p.tot_len) - C.tcp_shutdown(tpcb, 1, 0) - return C.ERR_OK - default: - panic("unexpected error") - } - } - - return C.ERR_OK -} - -//export tcpSentFn -func tcpSentFn(arg unsafe.Pointer, tpcb *C.struct_tcp_pcb, len C.u16_t) C.err_t { - if conn, ok := tcpConns.Load(getConnKeyVal(arg)); ok { - err := conn.(TCPConn).Sent(uint16(len)) - switch err.(*lwipError).Code { - case LWIP_ERR_ABRT: - return C.ERR_ABRT - case LWIP_ERR_OK: - return C.ERR_OK - default: - panic("unexpected error") - } - } else { - C.tcp_abort(tpcb) - return C.ERR_ABRT - } -} - -//export tcpErrFn -func tcpErrFn(arg unsafe.Pointer, err C.err_t) { - if conn, ok := tcpConns.Load(getConnKeyVal(arg)); ok { - switch err { - case C.ERR_ABRT: - // Aborted through tcp_abort or by a TCP timer - conn.(TCPConn).Err(errors.New("connection aborted")) - case C.ERR_RST: - // The connection was reset by the remote host - conn.(TCPConn).Err(errors.New("connection reseted")) - default: - conn.(TCPConn).Err(errors.New(fmt.Sprintf("lwip error code %v", int(err)))) - } - } -} - -//export tcpPollFn -func tcpPollFn(arg unsafe.Pointer, tpcb *C.struct_tcp_pcb) C.err_t { - if conn, ok := tcpConns.Load(getConnKeyVal(arg)); ok { - err := conn.(TCPConn).Poll() - switch err.(*lwipError).Code { - case LWIP_ERR_ABRT: - return C.ERR_ABRT - case LWIP_ERR_OK: - return C.ERR_OK - default: - panic("unexpected error") - } - } else { - C.tcp_abort(tpcb) - return C.ERR_ABRT - } -} diff --git a/core/tcp_conn.go b/core/tcp_conn.go deleted file mode 100755 index 9052c1e..0000000 --- a/core/tcp_conn.go +++ /dev/null @@ -1,470 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/tcp.h" -*/ -import "C" -import ( - "errors" - "fmt" - "io" - "math/rand" - "net" - "sync" - "time" - "unsafe" -) - -type tcpConnState uint - -const ( - // tcpNewConn is the initial state. - tcpNewConn tcpConnState = iota - - // tcpConnecting indicates the handler is still connecting remote host. - tcpConnecting - - // tcpConnected indicates the connection has been established, handler - // may write data to TUN, and read data from TUN. - tcpConnected - - // tcpWriteClosed indicates the handler has closed the writing side - // of the connection, no more data will send to TUN, but handler can still - // read data from TUN. - tcpWriteClosed - - // tcpReceiveClosed indicates lwIP has received a FIN segment from - // local peer, the reading side is closed, no more data can be read - // from TUN, but handler can still write data to TUN. - tcpReceiveClosed - - // tcpClosing indicates both reading side and writing side are closed, - // resources deallocation will be triggered at any time in lwIP callbacks. - tcpClosing - - // tcpAborting indicates the connection is aborting, resources deallocation - // will be triggered at any time in lwIP callbacks. - tcpAborting - - // tcpClosed indicates the connection has been closed, resources were freed. - tcpClosed - - // tcpErrord indicates an fatal error occured on the connection, resources - // were freed. - tcpErrored -) - -type tcpConn struct { - sync.Mutex - - pcb *C.struct_tcp_pcb - handler TCPConnHandler - remoteAddr *net.TCPAddr - localAddr *net.TCPAddr - connKeyArg unsafe.Pointer - connKey uint32 - canWrite *sync.Cond // Condition variable to implement TCP backpressure. - state tcpConnState - sndPipeReader *io.PipeReader - sndPipeWriter *io.PipeWriter - closeOnce sync.Once - closeErr error -} - -func newTCPConn(pcb *C.struct_tcp_pcb, handler TCPConnHandler) (TCPConn, error) { - connKeyArg := newConnKeyArg() - connKey := rand.Uint32() - setConnKeyVal(unsafe.Pointer(connKeyArg), connKey) - - // Pass the key as arg for subsequent tcp callbacks. - C.tcp_arg(pcb, unsafe.Pointer(connKeyArg)) - - // Register callbacks. - setTCPRecvCallback(pcb) - setTCPSentCallback(pcb) - setTCPErrCallback(pcb) - setTCPPollCallback(pcb, C.u8_t(TCP_POLL_INTERVAL)) - - pipeReader, pipeWriter := io.Pipe() - conn := &tcpConn{ - pcb: pcb, - handler: handler, - localAddr: ParseTCPAddr(ipAddrNTOA(pcb.remote_ip), uint16(pcb.remote_port)), - remoteAddr: ParseTCPAddr(ipAddrNTOA(pcb.local_ip), uint16(pcb.local_port)), - connKeyArg: connKeyArg, - connKey: connKey, - canWrite: sync.NewCond(&sync.Mutex{}), - state: tcpNewConn, - sndPipeReader: pipeReader, - sndPipeWriter: pipeWriter, - } - - // Associate conn with key and save to the global map. - tcpConns.Store(connKey, conn) - - // Connecting remote host could take some time, do it in another goroutine - // to prevent blocking the lwip thread. - conn.Lock() - conn.state = tcpConnecting - conn.Unlock() - go func() { - err := handler.Handle(TCPConn(conn), conn.remoteAddr) - if err != nil { - conn.Abort() - } else { - conn.Lock() - conn.state = tcpConnected - conn.Unlock() - - lwipMutex.Lock() - if pcb.refused_data != nil { - C.tcp_process_refused_data(pcb) - } - lwipMutex.Unlock() - } - }() - - return conn, NewLWIPError(LWIP_ERR_OK) -} - -func (conn *tcpConn) RemoteAddr() net.Addr { - return conn.remoteAddr -} - -func (conn *tcpConn) LocalAddr() net.Addr { - return conn.localAddr -} - -func (conn *tcpConn) SetDeadline(t time.Time) error { - return nil -} -func (conn *tcpConn) SetReadDeadline(t time.Time) error { - return nil -} -func (conn *tcpConn) SetWriteDeadline(t time.Time) error { - return nil -} - -func (conn *tcpConn) receiveCheck() error { - conn.Lock() - defer conn.Unlock() - - switch conn.state { - case tcpConnected: - fallthrough - case tcpWriteClosed: - return nil - case tcpNewConn: - fallthrough - case tcpConnecting: - fallthrough - case tcpAborting: - fallthrough - case tcpClosed: - return NewLWIPError(LWIP_ERR_CONN) - case tcpReceiveClosed: - fallthrough - case tcpClosing: - return NewLWIPError(LWIP_ERR_CLSD) - case tcpErrored: - conn.abortInternal() - return NewLWIPError(LWIP_ERR_ABRT) - default: - panic("unexpected error") - } - return nil -} - -func (conn *tcpConn) Receive(data []byte) error { - if err := conn.receiveCheck(); err != nil { - return err - } - n, err := conn.sndPipeWriter.Write(data) - if err != nil { - return NewLWIPError(LWIP_ERR_CLSD) - } - C.tcp_recved(conn.pcb, C.u16_t(n)) - return NewLWIPError(LWIP_ERR_OK) -} - -func (conn *tcpConn) Read(data []byte) (int, error) { - conn.Lock() - if conn.state == tcpReceiveClosed { - conn.Unlock() - return 0, io.EOF - } - if conn.state >= tcpClosing { - conn.Unlock() - return 0, io.ErrClosedPipe - } - conn.Unlock() - - // Handler should get EOF. - n, err := conn.sndPipeReader.Read(data) - if err == io.ErrClosedPipe { - err = io.EOF - } - return n, err -} - -// writeInternal enqueues data to snd_buf, and treats ERR_MEM returned by tcp_write not an error, -// but instead tells the caller that data is not successfully enqueued, and should try -// again another time. By calling this function, the lwIP thread is assumed to be already -// locked by the caller. -func (conn *tcpConn) writeInternal(data []byte) (int, error) { - err := C.tcp_write(conn.pcb, unsafe.Pointer(&data[0]), C.u16_t(len(data)), C.TCP_WRITE_FLAG_COPY) - if err == C.ERR_OK { - C.tcp_output(conn.pcb) - return len(data), nil - } else if err == C.ERR_MEM { - return 0, nil - } - return 0, fmt.Errorf("tcp_write failed (%v)", int(err)) -} - -func (conn *tcpConn) writeCheck() error { - conn.Lock() - defer conn.Unlock() - - switch conn.state { - case tcpConnecting: - fallthrough - case tcpConnected: - fallthrough - case tcpReceiveClosed: - return nil - case tcpWriteClosed: - fallthrough - case tcpClosing: - fallthrough - case tcpClosed: - fallthrough - case tcpErrored: - fallthrough - case tcpAborting: - return io.ErrClosedPipe - default: - panic("unexpected error") - } - return nil -} - -func (conn *tcpConn) Write(data []byte) (int, error) { - totalWritten := 0 - - conn.canWrite.L.Lock() - defer conn.canWrite.L.Unlock() - - for len(data) > 0 { - if err := conn.writeCheck(); err != nil { - return totalWritten, err - } - - lwipMutex.Lock() - toWrite := len(data) - if toWrite > int(conn.pcb.snd_buf) { - // Write at most the size of the LWIP buffer. - toWrite = int(conn.pcb.snd_buf) - } - if toWrite > 0 { - written, err := conn.writeInternal(data[0:toWrite]) - totalWritten += written - if err != nil { - lwipMutex.Unlock() - return totalWritten, err - } - data = data[written:len(data)] - } - lwipMutex.Unlock() - if len(data) == 0 { - break // Don't block if all the data has been written. - } - conn.canWrite.Wait() - } - - return totalWritten, nil -} - -func (conn *tcpConn) CloseWrite() error { - conn.Lock() - if conn.state >= tcpClosing || conn.state == tcpWriteClosed { - conn.Unlock() - return nil - } - if conn.state == tcpReceiveClosed { - conn.state = tcpClosing - } else { - conn.state = tcpWriteClosed - } - conn.Unlock() - - lwipMutex.Lock() - // FIXME Handle tcp_shutdown error. - C.tcp_shutdown(conn.pcb, 0, 1) - lwipMutex.Unlock() - - return nil -} - -func (conn *tcpConn) CloseRead() error { - return conn.sndPipeReader.Close() -} - -func (conn *tcpConn) Sent(len uint16) error { - // Some packets are acknowledged by local client, check if any pending data to send. - return conn.checkState() -} - -func (conn *tcpConn) checkClosing() error { - conn.Lock() - defer conn.Unlock() - - if conn.state == tcpClosing { - conn.closeInternal() - return NewLWIPError(LWIP_ERR_OK) - } - return nil -} - -func (conn *tcpConn) checkAborting() error { - conn.Lock() - defer conn.Unlock() - - if conn.state == tcpAborting { - conn.abortInternal() - return NewLWIPError(LWIP_ERR_ABRT) - } - return nil -} - -func (conn *tcpConn) isClosed() bool { - conn.Lock() - defer conn.Unlock() - - return conn.state == tcpClosed -} - -func (conn *tcpConn) checkState() error { - if conn.isClosed() { - return nil - } - - err := conn.checkClosing() - if err != nil { - return err - } - - err = conn.checkAborting() - if err != nil { - return err - } - - // Signal the writer to try writting. - conn.canWrite.Broadcast() - - return NewLWIPError(LWIP_ERR_OK) -} - -func (conn *tcpConn) Close() error { - conn.closeOnce.Do(conn.close) - return conn.closeErr -} - -func (conn *tcpConn) close() { - err := conn.CloseRead() - if err != nil { - conn.closeErr = err - } - err = conn.CloseWrite() - if err != nil { - conn.closeErr = err - } -} - -func (conn *tcpConn) setLocalClosed() error { - conn.Lock() - defer conn.Unlock() - - if conn.state >= tcpClosing || conn.state == tcpReceiveClosed { - return nil - } - - // Causes the read half of the pipe returns. - conn.sndPipeWriter.Close() - - if conn.state == tcpWriteClosed { - conn.state = tcpClosing - } else { - conn.state = tcpReceiveClosed - } - conn.canWrite.Broadcast() - return nil -} - -// Never call this function outside of the lwIP thread. -func (conn *tcpConn) closeInternal() error { - C.tcp_arg(conn.pcb, nil) - C.tcp_recv(conn.pcb, nil) - C.tcp_sent(conn.pcb, nil) - C.tcp_err(conn.pcb, nil) - C.tcp_poll(conn.pcb, nil, 0) - - conn.release() - - // FIXME Handle error. - err := C.tcp_close(conn.pcb) - if err == C.ERR_OK { - return nil - } else { - return errors.New(fmt.Sprintf("close TCP connection failed, lwip error code %d", int(err))) - } -} - -// Never call this function outside of the lwIP thread since it calls -// tcp_abort() and in that case we must return ERR_ABRT to lwIP. -func (conn *tcpConn) abortInternal() { - conn.release() - C.tcp_abort(conn.pcb) -} - -func (conn *tcpConn) Abort() { - conn.Lock() - // If it's in tcpErrored state, the pcb was already freed. - if conn.state < tcpAborting { - conn.state = tcpAborting - } - conn.Unlock() - - lwipMutex.Lock() - conn.checkState() - lwipMutex.Unlock() -} - -func (conn *tcpConn) Err(err error) { - conn.Lock() - defer conn.Unlock() - - conn.release() - conn.state = tcpErrored - conn.canWrite.Broadcast() -} - -func (conn *tcpConn) LocalClosed() error { - conn.setLocalClosed() - return conn.checkState() -} - -func (conn *tcpConn) release() { - if _, found := tcpConns.Load(conn.connKey); found { - freeConnKeyArg(conn.connKeyArg) - tcpConns.Delete(conn.connKey) - } - conn.sndPipeWriter.Close() - conn.sndPipeReader.Close() - conn.state = tcpClosed -} - -func (conn *tcpConn) Poll() error { - return conn.checkState() -} diff --git a/core/tcp_conn_map.go b/core/tcp_conn_map.go deleted file mode 100755 index 881708e..0000000 --- a/core/tcp_conn_map.go +++ /dev/null @@ -1,65 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/tcp.h" -#include - -void* -new_conn_key_arg() -{ - return malloc(sizeof(uint32_t)); -} - -void -free_conn_key_arg(void *arg) -{ - free(arg); -} - -void -set_conn_key_val(void *arg, uint32_t val) -{ - *((uint32_t*)arg) = val; -} - -uint32_t -get_conn_key_val(void *arg) -{ - return *((uint32_t*)arg); -} -*/ -import "C" -import ( - "sync" - "unsafe" -) - -var tcpConns sync.Map - -// We need such a key-value mechanism because when passing a Go pointer -// to C, the Go pointer will only be valid during the call. -// If we pass a Go pointer to tcp_arg(), this pointer will not be usable -// in subsequent callbacks (e.g.: tcp_recv(), tcp_err()). -// -// Instead we need to pass a C pointer to tcp_arg(), we manually allocate -// the memory in C and return its pointer to Go code. After the connection -// end, the memory should be freed manually. -// -// See also: -// https://github.com/golang/go/issues/12416 -func newConnKeyArg() unsafe.Pointer { - return C.new_conn_key_arg() -} - -func freeConnKeyArg(p unsafe.Pointer) { - C.free_conn_key_arg(p) -} - -func setConnKeyVal(p unsafe.Pointer, val uint32) { - C.set_conn_key_val(p, C.uint32_t(val)) -} - -func getConnKeyVal(p unsafe.Pointer) uint32 { - return uint32(C.get_conn_key_val(p)) -} diff --git a/core/udp_callback.go b/core/udp_callback.go deleted file mode 100755 index 4d0151e..0000000 --- a/core/udp_callback.go +++ /dev/null @@ -1,21 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/udp.h" - -extern void udpRecvFn(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr, u16_t port, const ip_addr_t *dest_addr, u16_t dest_port); - -void -set_udp_recv_callback(struct udp_pcb *pcb, void *recv_arg) { - udp_recv(pcb, udpRecvFn, recv_arg); -} -*/ -import "C" -import ( - "unsafe" -) - -func setUDPRecvCallback(pcb *C.struct_udp_pcb, recvArg unsafe.Pointer) { - C.set_udp_recv_callback(pcb, recvArg) -} diff --git a/core/udp_callback_export.go b/core/udp_callback_export.go deleted file mode 100755 index db885a7..0000000 --- a/core/udp_callback_export.go +++ /dev/null @@ -1,62 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/udp.h" -*/ -import "C" -import ( - "unsafe" -) - -//export udpRecvFn -func udpRecvFn(arg unsafe.Pointer, pcb *C.struct_udp_pcb, p *C.struct_pbuf, addr *C.ip_addr_t, port C.u16_t, destAddr *C.ip_addr_t, destPort C.u16_t) { - defer func() { - if p != nil { - C.pbuf_free(p) - } - }() - - if pcb == nil { - return - } - - srcAddr := ParseUDPAddr(ipAddrNTOA(*addr), uint16(port)) - dstAddr := ParseUDPAddr(ipAddrNTOA(*destAddr), uint16(destPort)) - if srcAddr == nil || dstAddr == nil { - panic("invalid UDP address") - } - - connId := udpConnId{ - src: srcAddr.String(), - } - conn, found := udpConns.Load(connId) - if !found { - if udpConnHandler == nil { - panic("must register a UDP connection handler") - } - var err error - conn, err = newUDPConn(pcb, - udpConnHandler, - *addr, - port, - srcAddr, - dstAddr) - if err != nil { - return - } - udpConns.Store(connId, conn) - } - - var buf []byte - var totlen = int(p.tot_len) - if p.tot_len == p.len { - buf = (*[1 << 30]byte)(unsafe.Pointer(p.payload))[:totlen:totlen] - } else { - buf = NewBytes(totlen) - defer FreeBytes(buf) - C.pbuf_copy_partial(p, unsafe.Pointer(&buf[0]), p.tot_len, 0) - } - - conn.(UDPConn).ReceiveTo(buf[:totlen], dstAddr) -} diff --git a/core/udp_conn.go b/core/udp_conn.go deleted file mode 100755 index 195d506..0000000 --- a/core/udp_conn.go +++ /dev/null @@ -1,158 +0,0 @@ -package core - -/* -#cgo CFLAGS: -I./c/include -#include "lwip/udp.h" -*/ -import "C" -import ( - "errors" - "fmt" - "net" - "sync" - "unsafe" -) - -type udpConnState uint - -const ( - udpConnecting udpConnState = iota - udpConnected - udpClosed -) - -type udpPacket struct { - data []byte - addr *net.UDPAddr -} - -type udpConn struct { - sync.Mutex - - pcb *C.struct_udp_pcb - handler UDPConnHandler - localAddr *net.UDPAddr - localIP C.ip_addr_t - localPort C.u16_t - state udpConnState - pending chan *udpPacket -} - -func newUDPConn(pcb *C.struct_udp_pcb, handler UDPConnHandler, localIP C.ip_addr_t, localPort C.u16_t, localAddr, remoteAddr *net.UDPAddr) (UDPConn, error) { - conn := &udpConn{ - handler: handler, - pcb: pcb, - localAddr: localAddr, - localIP: localIP, - localPort: localPort, - state: udpConnecting, - pending: make(chan *udpPacket, 64), // To hold the early packets on the connection - } - - go func() { - err := handler.Connect(conn, remoteAddr) - if err != nil { - conn.Close() - } else { - conn.Lock() - conn.state = udpConnected - conn.Unlock() - // Once connected, send all pending data. - DrainPending: - for { - select { - case pkt := <-conn.pending: - err := conn.handler.ReceiveTo(conn, pkt.data, pkt.addr) - if err != nil { - break DrainPending - } - continue DrainPending - default: - conn.pending = nil - break DrainPending - } - } - } - }() - - return conn, nil -} - -func (conn *udpConn) LocalAddr() *net.UDPAddr { - return conn.localAddr -} - -func (conn *udpConn) checkState() error { - conn.Lock() - defer conn.Unlock() - - switch conn.state { - case udpClosed: - return errors.New("connection closed") - case udpConnected: - return nil - case udpConnecting: - return errors.New("not connected") - } - return nil -} - -// If the connection isn't ready yet, and there is room in the queue, make a copy -// and hold onto it until the connection is ready. -func (conn *udpConn) enqueueEarlyPacket(data []byte, addr *net.UDPAddr) bool { - conn.Lock() - defer conn.Unlock() - if conn.state == udpConnecting { - pkt := &udpPacket{data: append([]byte(nil), data...), addr: addr} - select { - // Data will be dropped if pending is full. - case conn.pending <- pkt: - return true - default: - } - } - return false -} - -func (conn *udpConn) ReceiveTo(data []byte, addr *net.UDPAddr) error { - if conn.enqueueEarlyPacket(data, addr) { - return nil - } - if err := conn.checkState(); err != nil { - return err - } - err := conn.handler.ReceiveTo(conn, data, addr) - if err != nil { - return errors.New(fmt.Sprintf("write proxy failed: %v", err)) - } - return nil -} - -func (conn *udpConn) WriteFrom(data []byte, addr *net.UDPAddr) (int, error) { - if len(data) == 0 { - return 0, nil - } - if err := conn.checkState(); err != nil { - return 0, err - } - // FIXME any memory leaks? - cremoteIP := C.struct_ip_addr{} - if err := ipAddrATON(addr.IP.String(), &cremoteIP); err != nil { - return 0, err - } - buf := C.pbuf_alloc_reference(unsafe.Pointer(&data[0]), C.u16_t(len(data)), C.PBUF_ROM) - defer C.pbuf_free(buf) - C.udp_sendto(conn.pcb, buf, &conn.localIP, conn.localPort, &cremoteIP, C.u16_t(addr.Port)) - return len(data), nil -} - -func (conn *udpConn) Close() error { - connId := udpConnId{ - src: conn.LocalAddr().String(), - } - conn.Lock() - conn.state = udpClosed - conn.Unlock() - udpConns.Delete(connId) - return nil -} diff --git a/core/udp_conn_map.go b/core/udp_conn_map.go deleted file mode 100755 index bd1b558..0000000 --- a/core/udp_conn_map.go +++ /dev/null @@ -1,11 +0,0 @@ -package core - -import ( - "sync" -) - -var udpConns sync.Map - -type udpConnId struct { - src string -} diff --git a/entrypoint.sh b/entrypoint.sh deleted file mode 100644 index 728347f..0000000 --- a/entrypoint.sh +++ /dev/null @@ -1,43 +0,0 @@ -#!/bin/sh - -TUN="${TUN:-tun0}" -ETH="${ETH:-eth0}" -TUN_ADDR="${TUN_ADDR:-198.18.0.1}" -TUN_MASK="${TUN_MASK:-255.254.0.0}" -LOGLEVEL="${LOGLEVEL:-warning}" - -MONITOR="${MONITOR:-1}" -MONITOR_ADDR="${MONITOR_ADDR:-0.0.0.0:80}" -FAKEDNS="${FAKEDNS:-1}" -BACKEND_DNS="${BACKEND_DNS:-8.8.8.8:53}" -HOSTS="${HOSTS:-localhost=127.0.0.1}" - -# create tun device -ip tuntap add mode tun dev "$TUN" -ip addr add "$TUN_ADDR"/"$TUN_MASK" dev "$TUN" -ip link set dev "$TUN" up - -# change default gateway -ip route del default > /dev/null -ip route add default via "$TUN_ADDR" dev "$TUN" - -# add to ip route -for addr in $(echo "$EXCLUDED" | tr ',' '\n') -do - ip route add "$addr" via "$ETH_ADDR" -done - -if [ -n "$EXTRACMD" ]; then - sh -c "$EXTRACMD" -fi - -if [ "$MONITOR" -ne 0 ]; then - ARGS="-monitor -monitorAddr $MONITOR_ADDR" -fi - -if [ "$FAKEDNS" -ne 0 ]; then - ARGS="$ARGS -fakeDNS -hosts $HOSTS -backendDNS $BACKEND_DNS" -fi - -eval exec /tun2socks -loglevel "$LOGLEVEL" \ - -tunName "$TUN" -proxyServer "$PROXY" "$ARGS" diff --git a/filter/filter.go b/filter/filter.go deleted file mode 100644 index 7f338e8..0000000 --- a/filter/filter.go +++ /dev/null @@ -1,10 +0,0 @@ -package filter - -import ( - "io" -) - -// Filter is used for filtering IP packets coming from TUN. -type Filter interface { - io.Writer -} diff --git a/filter/icmp.go b/filter/icmp.go deleted file mode 100644 index af7af95..0000000 --- a/filter/icmp.go +++ /dev/null @@ -1,32 +0,0 @@ -package filter - -import ( - "io" - - "github.com/xjasonlyu/tun2socks/common/packet" - "github.com/xjasonlyu/tun2socks/log" -) - -type icmpFilter struct { - writer io.Writer -} - -func NewICMPFilter(w io.Writer) Filter { - return &icmpFilter{writer: w} -} - -func (f *icmpFilter) Write(buf []byte) (int, error) { - switch buf[9] { - case packet.PROTOCOL_ICMP: - payload := make([]byte, len(buf)) - copy(payload, buf) - go func(data []byte) { - if _, err := f.writer.Write(data); err != nil { - log.Fatalf("failed to input data to the stack: %v", err) - } - }(payload) - return len(buf), nil - default: - return f.writer.Write(buf) - } -} diff --git a/go.mod b/go.mod deleted file mode 100644 index 1d2f205..0000000 --- a/go.mod +++ /dev/null @@ -1,15 +0,0 @@ -module github.com/xjasonlyu/tun2socks - -go 1.15 - -require ( - github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d // indirect - github.com/go-ole/go-ole v1.2.4 // indirect - github.com/gobuffalo/packr/v2 v2.8.0 - github.com/miekg/dns v1.1.31 - github.com/shirou/gopsutil v2.20.8+incompatible - github.com/sirupsen/logrus v1.6.0 - github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8 - github.com/stretchr/testify v1.6.1 - golang.org/x/sys v0.0.0-20200918174421-af09f7315aff -) diff --git a/go.sum b/go.sum deleted file mode 100644 index 0a4ffe5..0000000 --- a/go.sum +++ /dev/null @@ -1,209 +0,0 @@ -cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= -github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= -github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU= -github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d h1:G0m3OIz70MZUWq3EgK3CesDbo8upS2Vm9/P3FtgI+Jk= -github.com/StackExchange/wmi v0.0.0-20190523213315-cbe66965904d/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg= -github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod 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v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc= -google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c= -google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM= -gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw= -gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY= -gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI= -gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo= -gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74= -gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= -gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo= -gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= -honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= diff --git a/load-tun.sh b/load-tun.sh deleted file mode 100644 index 457803f..0000000 --- a/load-tun.sh +++ /dev/null @@ -1,15 +0,0 @@ -#!/bin/sh - -# Create the necessary file structure for /dev/net/tun -if ( [ ! -c /dev/net/tun ] ); then - if ( [ ! -d /dev/net ] ); then - mkdir -m 755 /dev/net - fi - mknod /dev/net/tun c 10 200 - chmod 0755 /dev/net/tun -fi - -# Load the tun module if not already loaded -if ( !(lsmod | grep -q "^tun\s") ); then - insmod /lib/modules/tun.ko -fi diff --git a/log/level.go b/log/level.go deleted file mode 100644 index cb80f49..0000000 --- a/log/level.go +++ /dev/null @@ -1,28 +0,0 @@ -package log - -const ( - DEBUG Level = iota - INFO - WARNING - ERROR - SILENT -) - -type Level int - -func (l Level) String() string { - switch l { - case INFO: - return "info" - case WARNING: - return "warning" - case ERROR: - return "error" - case DEBUG: - return "debug" - case SILENT: - return "silent" - default: - return "unknown" - } -} diff --git a/log/log.go b/log/log.go deleted file mode 100644 index 7694e65..0000000 --- a/log/log.go +++ /dev/null @@ -1,82 +0,0 @@ -package log - -import ( - "fmt" - "os" - - log "github.com/sirupsen/logrus" -) - -var ( - level = INFO -) - -func init() { - log.SetOutput(os.Stdout) - log.SetLevel(log.DebugLevel) -} - -type Event struct { - LogLevel Level - Payload string -} - -func (e *Event) Type() string { - return e.LogLevel.String() -} - -func Infof(format string, v ...interface{}) { - event := newLog(INFO, format, v...) - printf(event) -} - -func Warnf(format string, v ...interface{}) { - event := newLog(WARNING, format, v...) - printf(event) -} - -func Errorf(format string, v ...interface{}) { - event := newLog(ERROR, format, v...) - printf(event) -} - -func Debugf(format string, v ...interface{}) { - event := newLog(DEBUG, format, v...) - printf(event) -} - -func Fatalf(format string, v ...interface{}) { - log.Fatalf(format, v...) -} - -func Access(process, outbound, network, local, target string) { - Infof("[%v] [%v] [%v] %s --> %s", outbound, network, process, local, target) -} - -func SetLevel(newLevel Level) { - level = newLevel -} - -func printf(data *Event) { - if data.LogLevel < level { - return - } - - switch data.LogLevel { - case INFO: - log.Infoln(data.Payload) - case WARNING: - log.Warnln(data.Payload) - case ERROR: - log.Errorln(data.Payload) - case DEBUG: - log.Debugln(data.Payload) - } -} - -func newLog(logLevel Level, format string, v ...interface{}) *Event { - return &Event{ - LogLevel: logLevel, - Payload: fmt.Sprintf(format, v...), - } -} diff --git a/proxy/proxy.go b/proxy/proxy.go deleted file mode 100644 index 438fadd..0000000 --- a/proxy/proxy.go +++ /dev/null @@ -1,84 +0,0 @@ -package proxy - -import ( - "errors" - "net" - "strconv" - "strings" - - D "github.com/xjasonlyu/tun2socks/component/fakedns" - S "github.com/xjasonlyu/tun2socks/component/session" -) - -var ( - monitor S.Monitor - - fakeDNS D.FakeDNS - // default DNS address - hijackDNS []string -) - -func RegisterMonitor(m S.Monitor) { - monitor = m -} - -func RegisterFakeDNS(d D.FakeDNS, h string) { - fakeDNS = d - hijackDNS = append(hijackDNS, strings.Split(h, ",")...) -} - -// Session Operation -func addSession(key interface{}, session *S.Session) { - if monitor != nil { - monitor.AddSession(key, session) - } -} - -func removeSession(key interface{}) { - if monitor != nil { - monitor.RemoveSession(key) - } -} - -// Check target if is hijacked address. -func isHijacked(target *net.UDPAddr) bool { - if fakeDNS == nil { - // ignore when fake DNS disabled - return false - } - - for _, addr := range hijackDNS { - host, port, err := net.SplitHostPort(addr) - if err != nil { - continue - } - portInt, _ := strconv.Atoi(port) - if (host == "*" && portInt == target.Port) || addr == target.String() { - return true - } - } - return false -} - -// DNS lookup -func lookupHost(target net.Addr) (targetHost string, err error) { - var targetIP net.IP - switch addr := target.(type) { - case *net.TCPAddr: - targetIP = addr.IP - case *net.UDPAddr: - targetIP = addr.IP - default: - err = errors.New("invalid target type") - return - } - - targetHost = targetIP.String() - // Replace with a domain name if target address IP is a fake IP. - if fakeDNS != nil { - if host, exist := fakeDNS.IPToHost(targetIP); exist { - targetHost = host - } - } - return -} diff --git a/proxy/socks/socks.go b/proxy/socks/socks.go deleted file mode 100755 index f6aa70e..0000000 --- a/proxy/socks/socks.go +++ /dev/null @@ -1,247 +0,0 @@ -package socks - -import ( - "bytes" - "errors" - "io" - "net" - "strconv" -) - -const Version = 5 - -// Error represents a SOCKS error -type Error byte - -func (err Error) Error() string { - return "SOCKS5 error: " + strconv.Itoa(int(err)) -} - -// Command is request commands as defined in RFC 1928 section 4. -type Command = uint8 - -// SOCKS request commands as defined in RFC 1928 section 4. -const ( - CmdConnect Command = 1 - CmdBind Command = 2 - CmdUDPAssociate Command = 3 -) - -// SOCKS address types as defined in RFC 1928 section 5. -const ( - AtypIPv4 = 1 - AtypDomainName = 3 - AtypIPv6 = 4 -) - -// MaxAddrLen is the maximum size of SOCKS address in bytes. -const MaxAddrLen = 1 + 1 + 255 + 2 - -// MaxAuthLen is the maximum size of user/password field in SOCKS5 Auth -const MaxAuthLen = 255 - -// Addr represents a SOCKS address as defined in RFC 1928 section 5. -type Addr []byte - -func (a Addr) String() string { - var host, port string - - switch a[0] { - case AtypDomainName: - hostLen := uint16(a[1]) - host = string(a[2 : 2+hostLen]) - port = strconv.Itoa((int(a[2+hostLen]) << 8) | int(a[2+hostLen+1])) - case AtypIPv4: - host = net.IP(a[1 : 1+net.IPv4len]).String() - port = strconv.Itoa((int(a[1+net.IPv4len]) << 8) | int(a[1+net.IPv4len+1])) - case AtypIPv6: - host = net.IP(a[1 : 1+net.IPv6len]).String() - port = strconv.Itoa((int(a[1+net.IPv6len]) << 8) | int(a[1+net.IPv6len+1])) - } - - return net.JoinHostPort(host, port) -} - -// SOCKS errors as defined in RFC 1928 section 6. -const ( - ErrGeneralFailure = Error(1) - ErrConnectionNotAllowed = Error(2) - ErrNetworkUnreachable = Error(3) - ErrHostUnreachable = Error(4) - ErrConnectionRefused = Error(5) - ErrTTLExpired = Error(6) - ErrCommandNotSupported = Error(7) - ErrAddressNotSupported = Error(8) -) - -// Auth errors used to return a specific "Auth failed" error -var ErrAuth = errors.New("auth failed") - -// ClientHandshake fast-tracks SOCKS initialization to get target address to connect on client side. -func ClientHandshake(rw io.ReadWriter, addr Addr, command Command) (Addr, error) { - buf := make([]byte, MaxAddrLen) - var err error - - // VER, NMETHODS, METHODS - _, err = rw.Write([]byte{Version, 1, 0}) - - if err != nil { - return nil, err - } - - // VER, METHOD - if _, err := io.ReadFull(rw, buf[:2]); err != nil { - return nil, err - } - - if buf[0] != 5 { - return nil, errors.New("SOCKS version error") - } - - if buf[1] != 0 { - return nil, errors.New("SOCKS need auth") - } - - // VER, CMD, RSV, ADDR - if _, err := rw.Write(bytes.Join([][]byte{{5, command, 0}, addr}, []byte{})); err != nil { - return nil, err - } - - // VER, REP, RSV - if _, err := io.ReadFull(rw, buf[:3]); err != nil { - return nil, err - } - - return readAddr(rw, buf) -} - -func readAddr(r io.Reader, b []byte) (Addr, error) { - if len(b) < MaxAddrLen { - return nil, io.ErrShortBuffer - } - _, err := io.ReadFull(r, b[:1]) // read 1st byte for address type - if err != nil { - return nil, err - } - - switch b[0] { - case AtypDomainName: - _, err = io.ReadFull(r, b[1:2]) // read 2nd byte for domain length - if err != nil { - return nil, err - } - domainLength := uint16(b[1]) - _, err = io.ReadFull(r, b[2:2+domainLength+2]) - return b[:1+1+domainLength+2], err - case AtypIPv4: - _, err = io.ReadFull(r, b[1:1+net.IPv4len+2]) - return b[:1+net.IPv4len+2], err - case AtypIPv6: - _, err = io.ReadFull(r, b[1:1+net.IPv6len+2]) - return b[:1+net.IPv6len+2], err - } - - return nil, ErrAddressNotSupported -} - -// SplitAddr slices a SOCKS address from beginning of b. Returns nil if failed. -func SplitAddr(b []byte) Addr { - addrLen := 1 - if len(b) < addrLen { - return nil - } - - switch b[0] { - case AtypDomainName: - if len(b) < 2 { - return nil - } - addrLen = 1 + 1 + int(b[1]) + 2 - case AtypIPv4: - addrLen = 1 + net.IPv4len + 2 - case AtypIPv6: - addrLen = 1 + net.IPv6len + 2 - default: - return nil - - } - - if len(b) < addrLen { - return nil - } - - return b[:addrLen] -} - -// ParseAddr parses the address in string s. Returns nil if failed. -func ParseAddr(s string) Addr { - var addr Addr - host, port, err := net.SplitHostPort(s) - if err != nil { - return nil - } - if ip := net.ParseIP(host); ip != nil { - if ip4 := ip.To4(); ip4 != nil { - addr = make([]byte, 1+net.IPv4len+2) - addr[0] = AtypIPv4 - copy(addr[1:], ip4) - } else { - addr = make([]byte, 1+net.IPv6len+2) - addr[0] = AtypIPv6 - copy(addr[1:], ip) - } - } else { - if len(host) > 255 { - return nil - } - addr = make([]byte, 1+1+len(host)+2) - addr[0] = AtypDomainName - addr[1] = byte(len(host)) - copy(addr[2:], host) - } - - portUint, err := strconv.ParseUint(port, 10, 16) - if err != nil { - return nil - } - - addr[len(addr)-2], addr[len(addr)-1] = byte(portUint>>8), byte(portUint) - - return addr -} - -func DecodeUDPPacket(packet []byte) (addr Addr, payload []byte, err error) { - if len(packet) < 5 { - err = errors.New("insufficient length of packet") - return - } - - // packet[0] and packet[1] are reserved - if !bytes.Equal(packet[:2], []byte{0, 0}) { - err = errors.New("reserved fields should be zero") - return - } - - if packet[2] != 0 /* fragments */ { - err = errors.New("discarding fragmented payload") - return - } - - addr = SplitAddr(packet[3:]) - if addr == nil { - err = errors.New("failed to read UDP header") - } - - payload = make([]byte, len(packet[3+len(addr):])) - copy(payload, packet[3+len(addr):]) - return -} - -func EncodeUDPPacket(addr Addr, payload []byte) (packet []byte, err error) { - if addr == nil { - err = errors.New("address is invalid") - return - } - packet = bytes.Join([][]byte{{0, 0, 0}, addr, payload}, []byte{}) - return -} diff --git a/proxy/tcp.go b/proxy/tcp.go deleted file mode 100644 index ad0ff1d..0000000 --- a/proxy/tcp.go +++ /dev/null @@ -1,126 +0,0 @@ -package proxy - -import ( - "io" - "net" - "strconv" - "sync" - "time" - - "github.com/xjasonlyu/tun2socks/common/lsof" - "github.com/xjasonlyu/tun2socks/common/pool" - "github.com/xjasonlyu/tun2socks/core" - "github.com/xjasonlyu/tun2socks/log" - - S "github.com/xjasonlyu/tun2socks/component/session" -) - -type tcpHandler struct { - proxyHost string - proxyPort int -} - -func NewTCPHandler(proxyHost string, proxyPort int) core.TCPConnHandler { - return &tcpHandler{ - proxyHost: proxyHost, - proxyPort: proxyPort, - } -} - -func (h *tcpHandler) relay(localConn, remoteConn net.Conn) { - var once sync.Once - closeOnce := func() { - once.Do(func() { - localConn.Close() - remoteConn.Close() - }) - } - - // Cleanup - defer func() { - // Close - closeOnce() - // Remove session - removeSession(localConn) - }() - - // WaitGroup - var wg sync.WaitGroup - wg.Add(1) - - // Up Link - go func() { - buf := pool.BufPool.Get().([]byte) - defer pool.BufPool.Put(buf[:cap(buf)]) - if _, err := io.CopyBuffer(remoteConn, localConn, buf); err != nil { - closeOnce() - } else { - localConn.SetDeadline(time.Now()) - remoteConn.SetDeadline(time.Now()) - tcpCloseRead(remoteConn) - } - wg.Done() - }() - - // Down Link - buf := pool.BufPool.Get().([]byte) - if _, err := io.CopyBuffer(localConn, remoteConn, buf); err != nil { - closeOnce() - } else { - localConn.SetDeadline(time.Now()) - remoteConn.SetDeadline(time.Now()) - tcpCloseRead(localConn) - } - pool.BufPool.Put(buf[:cap(buf)]) - - wg.Wait() // Wait for Up Link done -} - -func (h *tcpHandler) Handle(conn net.Conn, target *net.TCPAddr) error { - // Alias - var localConn = conn - - // Lookup fakeDNS host record - targetHost, err := lookupHost(target) - if err != nil { - log.Warnf("lookup target host: %v", err) - return err - } - - proxyAddr := net.JoinHostPort(h.proxyHost, strconv.Itoa(h.proxyPort)) - targetAddr := net.JoinHostPort(targetHost, strconv.Itoa(target.Port)) - // Dial - remoteConn, err := dial(proxyAddr, targetAddr) - if err != nil { - log.Infof("Dial: %v", err) - return err - } - - var process = "N/A" - if monitor != nil { - // Get name of the process - process = lsof.GetProcessName(localConn.LocalAddr()) - session := &S.Session{ - Process: process, - Network: localConn.LocalAddr().Network(), - DialerAddr: remoteConn.LocalAddr().String(), - ClientAddr: localConn.LocalAddr().String(), - TargetAddr: targetAddr, - UploadBytes: 0, - DownloadBytes: 0, - SessionStart: time.Now(), - } - addSession(localConn, session) - remoteConn = &S.Conn{Session: session, Conn: remoteConn} - } - - // Set keepalive - tcpKeepAlive(localConn) - tcpKeepAlive(remoteConn) - - // Relay connections - go h.relay(localConn, remoteConn) - - log.Access(process, "proxy", "tcp", localConn.LocalAddr().String(), targetAddr) - return nil -} diff --git a/proxy/udp.go b/proxy/udp.go deleted file mode 100644 index 705c538..0000000 --- a/proxy/udp.go +++ /dev/null @@ -1,165 +0,0 @@ -package proxy - -import ( - "fmt" - "net" - "strconv" - "sync" - "time" - - "github.com/xjasonlyu/tun2socks/common/lsof" - "github.com/xjasonlyu/tun2socks/common/pool" - "github.com/xjasonlyu/tun2socks/core" - "github.com/xjasonlyu/tun2socks/log" - - S "github.com/xjasonlyu/tun2socks/component/session" -) - -type udpHandler struct { - proxyHost string - proxyPort int - timeout time.Duration - - remoteMap sync.Map -} - -func NewUDPHandler(proxyHost string, proxyPort int, timeout time.Duration) core.UDPConnHandler { - return &udpHandler{ - proxyHost: proxyHost, - proxyPort: proxyPort, - timeout: timeout, - } -} - -func (h *udpHandler) fetchUDPInput(conn core.UDPConn, input net.PacketConn, addr *net.UDPAddr) { - buf := pool.BufPool.Get().([]byte) - - defer func() { - h.Close(conn) - pool.BufPool.Put(buf[:cap(buf)]) - }() - - for { - input.SetDeadline(time.Now().Add(h.timeout)) - n, _, err := input.ReadFrom(buf) - if err != nil { - if !isTimeout(err) && !isClosed(err) { - log.Warnf("failed to read UDP data from remote: %v", err) - } - return - } - - if _, err := conn.WriteFrom(buf[:n], addr); err != nil { - log.Warnf("failed to write UDP data: %v", err) - return - } - } -} - -func (h *udpHandler) Connect(conn core.UDPConn, target *net.UDPAddr) error { - // Check hijackDNS - if isHijacked(target) { - return nil - } - - // Lookup fakeDNS host record - targetHost, err := lookupHost(target) - if err != nil { - log.Warnf("lookup target host: %v", err) - return err - } - - proxyAddr := net.JoinHostPort(h.proxyHost, strconv.Itoa(h.proxyPort)) - targetAddr := net.JoinHostPort(targetHost, strconv.Itoa(target.Port)) - // Dial - remoteConn, remoteAddr, err := dialUDP(proxyAddr, targetAddr) - if err != nil { - log.Infof("DialUDP: %v", err) - return err - } - - var process = "N/A" - if monitor != nil { - // Get name of the process - process = lsof.GetProcessName(conn.LocalAddr()) - session := &S.Session{ - Process: process, - Network: conn.LocalAddr().Network(), - DialerAddr: remoteConn.LocalAddr().String(), - ClientAddr: conn.LocalAddr().String(), - TargetAddr: targetAddr, - UploadBytes: 0, - DownloadBytes: 0, - SessionStart: time.Now(), - } - addSession(conn, session) - remoteConn = &S.PacketConn{Session: session, PacketConn: remoteConn} - } - - h.remoteMap.Store(conn, &udpElement{ - remoteAddr: remoteAddr, - remoteConn: remoteConn, - }) - - go h.fetchUDPInput(conn, remoteConn, target) - - log.Access(process, "proxy", "udp", conn.LocalAddr().String(), targetAddr) - return nil -} - -func (h *udpHandler) ReceiveTo(conn core.UDPConn, data []byte, addr *net.UDPAddr) (err error) { - // Close if return error - defer func() { - if err != nil { - h.Close(conn) - } - }() - - // Check hijackDNS - if isHijacked(addr) { - resp, err := fakeDNS.Resolve(data) - if err != nil { - return fmt.Errorf("hijack DNS request error: %v", err) - } - - if _, err = conn.WriteFrom(resp, addr); err != nil { - return fmt.Errorf("write dns answer failed: %v", err) - } - h.Close(conn) - return nil - } - - var remoteAddr net.Addr - var remoteConn net.PacketConn - - if elm, ok := h.remoteMap.Load(conn); ok { - remoteAddr = elm.(*udpElement).remoteAddr - remoteConn = elm.(*udpElement).remoteConn - } - - if remoteAddr == nil || remoteConn == nil { - return fmt.Errorf("proxy connection %v->%v does not exists", conn.LocalAddr(), addr) - } - - if _, err = remoteConn.WriteTo(data, remoteAddr); err != nil { - return fmt.Errorf("write remote failed: %v", err) - } - - return nil -} - -func (h *udpHandler) Close(conn core.UDPConn) { - // Close - conn.Close() - - // Load from remoteConnMap - if elm, ok := h.remoteMap.Load(conn); ok { - elm.(*udpElement).remoteConn.Close() - h.remoteMap.Delete(conn) - } else { - return - } - - // Remove session - removeSession(conn) -} diff --git a/proxy/utils.go b/proxy/utils.go deleted file mode 100644 index 34a6b5e..0000000 --- a/proxy/utils.go +++ /dev/null @@ -1,157 +0,0 @@ -package proxy - -import ( - "fmt" - "io" - "io/ioutil" - "net" - "strings" - "time" - - "github.com/xjasonlyu/tun2socks/proxy/socks" -) - -// Error -func isTimeout(err error) bool { - if netErr, ok := err.(net.Error); ok { - return netErr.Timeout() - } - return false -} - -func isClosed(err error) bool { - want := "use of closed network connection" - return strings.Contains(err.Error(), want) -} - -// UDP util -type udpElement struct { - remoteAddr net.Addr - remoteConn net.PacketConn -} - -// TCP functions -type duplexConn interface { - net.Conn - CloseRead() error - CloseWrite() error -} - -func tcpCloseRead(conn net.Conn) { - if c, ok := conn.(duplexConn); ok { - c.CloseRead() - } -} - -func tcpCloseWrite(conn net.Conn) { - if c, ok := conn.(duplexConn); ok { - c.CloseWrite() - } -} - -func tcpKeepAlive(conn net.Conn) { - if tcp, ok := conn.(*net.TCPConn); ok { - tcp.SetKeepAlive(true) - tcp.SetKeepAlivePeriod(30 * time.Second) - } -} - -// Socks dialer -func dial(proxy, target string) (net.Conn, error) { - c, err := net.DialTimeout("tcp", proxy, 5*time.Second) - if err != nil { - return nil, fmt.Errorf("%s connect error", proxy) - } - - targetAddr := socks.ParseAddr(target) - if targetAddr == nil { - return nil, fmt.Errorf("target address parse error") - } - - if _, err := socks.ClientHandshake(c, targetAddr, socks.CmdConnect); err != nil { - return nil, err - } - return c, nil -} - -func dialUDP(proxy, target string) (_ net.PacketConn, _ net.Addr, err error) { - c, err := net.DialTimeout("tcp", proxy, 5*time.Second) - if err != nil { - err = fmt.Errorf("%s connect error", proxy) - return - } - - // tcp set keepalive - tcpKeepAlive(c) - - defer func() { - if err != nil { - c.Close() - } - }() - - targetAddr := socks.ParseAddr(target) - if targetAddr == nil { - err = fmt.Errorf("target address parse error") - return - } - - bindAddr, err := socks.ClientHandshake(c, targetAddr, socks.CmdUDPAssociate) - if err != nil { - err = fmt.Errorf("%v client hanshake error", err) - return - } - - addr, err := net.ResolveUDPAddr("udp", bindAddr.String()) - if err != nil { - return - } - - pc, err := net.ListenPacket("udp", "") - if err != nil { - return - } - - go func() { - io.Copy(ioutil.Discard, c) - c.Close() - // A UDP association terminates when the TCP connection that the UDP - // ASSOCIATE request arrived on terminates. RFC1928 - pc.Close() - }() - - return &socksUDPConn{PacketConn: pc, tcpConn: c, targetAddr: targetAddr}, addr, nil -} - -// Socks wrapped UDPConn -type socksUDPConn struct { - net.PacketConn - tcpConn net.Conn - targetAddr socks.Addr -} - -func (c *socksUDPConn) WriteTo(b []byte, addr net.Addr) (n int, err error) { - packet, err := socks.EncodeUDPPacket(c.targetAddr, b) - if err != nil { - return - } - return c.PacketConn.WriteTo(packet, addr) -} - -func (c *socksUDPConn) ReadFrom(b []byte) (int, net.Addr, error) { - n, a, e := c.PacketConn.ReadFrom(b) - if e != nil { - return 0, nil, e - } - addr, payload, err := socks.DecodeUDPPacket(b) - if err != nil { - return 0, nil, err - } - copy(b, payload) - return n - len(addr) - 3, a, nil -} - -func (c *socksUDPConn) Close() error { - c.tcpConn.Close() - return c.PacketConn.Close() -} diff --git a/screenshot.png b/screenshot.png deleted file mode 100644 index 1e6541f..0000000 Binary files a/screenshot.png and /dev/null differ diff --git a/tun/README.md b/tun/README.md deleted file mode 100644 index 9265c0d..0000000 --- a/tun/README.md +++ /dev/null @@ -1 +0,0 @@ -Files in this directory are copied from https://github.com/yinghuocho/gotun2socks, with slightly modifies. diff --git a/tun/stop.go b/tun/stop.go deleted file mode 100644 index 073ffe2..0000000 --- a/tun/stop.go +++ /dev/null @@ -1,34 +0,0 @@ -package tun - -import ( - "bytes" - "log" - "net" -) - -var stopMarker = []byte{2, 2, 2, 2, 2, 2, 2, 2} - -// Close of Windows and Linux tun/tap device do not interrupt blocking Read. -// sendStopMarker is used to issue a specific packet to notify threads blocking -// on Read. -func sendStopMarker(src, dst string) { - l, _ := net.ResolveUDPAddr("udp", src+":2222") - r, _ := net.ResolveUDPAddr("udp", dst+":2222") - conn, err := net.DialUDP("udp", l, r) - if err != nil { - log.Printf("fail to send stopmarker: %s", err) - return - } - defer conn.Close() - conn.Write(stopMarker) -} - -func isStopMarker(pkt []byte, src, dst net.IP) bool { - n := len(pkt) - // at least should be 20(ip) + 8(udp) + 8(stopmarker) - if n < 20+8+8 { - return false - } - return pkt[0]&0xf0 == 0x40 && pkt[9] == 0x11 && src.Equal(pkt[12:16]) && - dst.Equal(pkt[16:20]) && bytes.Compare(pkt[n-8:n], stopMarker) == 0 -} diff --git a/tun/tun_darwin.go b/tun/tun_darwin.go deleted file mode 100644 index 2a9827b..0000000 --- a/tun/tun_darwin.go +++ /dev/null @@ -1,68 +0,0 @@ -package tun - -import ( - "errors" - "fmt" - "io" - "net" - "os/exec" - "strconv" - "strings" - - "github.com/songgao/water" -) - -func isIPv4(ip net.IP) bool { - if ip.To4() != nil { - return true - } - return false -} - -func isIPv6(ip net.IP) bool { - // To16() also valid for ipv4, ensure it's not an ipv4 address - if ip.To4() != nil { - return false - } - if ip.To16() != nil { - return true - } - return false -} - -func OpenTunDevice(name, addr, gw, mask string, dnsServers []string, persist bool) (io.ReadWriteCloser, error) { - _ = dnsServers - tunDev, err := water.New(water.Config{ - DeviceType: water.TUN, - }) - if err != nil { - return nil, err - } - name = tunDev.Name() - ip := net.ParseIP(addr) - if ip == nil { - return nil, errors.New("invalid IP address") - } - - var params string - if isIPv4(ip) { - params = fmt.Sprintf("%s inet %s netmask %s %s", name, addr, mask, gw) - } else if isIPv6(ip) { - prefixLen, err := strconv.Atoi(mask) - if err != nil { - return nil, errors.New(fmt.Sprintf("parse IPv6 prefixlen failed: %v", err)) - } - params = fmt.Sprintf("%s inet6 %s/%d", name, addr, prefixLen) - } else { - return nil, errors.New("invalid IP address") - } - - out, err := exec.Command("ifconfig", strings.Split(params, " ")...).Output() - if err != nil { - if len(out) != 0 { - return nil, errors.New(fmt.Sprintf("%v, output: %s", err, out)) - } - return nil, err - } - return tunDev, nil -} diff --git a/tun/tun_linux.go b/tun/tun_linux.go deleted file mode 100644 index 9154395..0000000 --- a/tun/tun_linux.go +++ /dev/null @@ -1,27 +0,0 @@ -package tun - -import ( - "errors" - "io" - "net" - - "github.com/songgao/water" -) - -func OpenTunDevice(name, addr, gw, mask string, dnsServers []string, persist bool) (io.ReadWriteCloser, error) { - cfg := water.Config{ - DeviceType: water.TUN, - } - cfg.Name = name - cfg.Persist = persist - tunDev, err := water.New(cfg) - if err != nil { - return nil, err - } - name = tunDev.Name() - ip := net.ParseIP(addr) - if ip == nil { - return nil, errors.New("invalid IP address") - } - return tunDev, nil -} diff --git a/tun/tun_windows.go b/tun/tun_windows.go deleted file mode 100644 index 97d640b..0000000 --- a/tun/tun_windows.go +++ /dev/null @@ -1,391 +0,0 @@ -package tun - -import ( - "encoding/binary" - // "encoding/hex" - "errors" - "fmt" - "io" - "log" - "net" - "os/exec" - "strings" - "sync" - "syscall" - "unsafe" - - "golang.org/x/sys/windows" - "golang.org/x/sys/windows/registry" -) - -const ( - TAPWIN32_MAX_REG_SIZE = 256 - TUNTAP_COMPONENT_ID_0901 = "tap0901" - TUNTAP_COMPONENT_ID_0801 = "tap0801" - NETWORK_KEY = `SYSTEM\\CurrentControlSet\\Control\\Network\\{4D36E972-E325-11CE-BFC1-08002BE10318}` - ADAPTER_KEY = `SYSTEM\CurrentControlSet\Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}` -) - -func ctl_code(device_type, function, method, access uint32) uint32 { - return (device_type << 16) | (access << 14) | (function << 2) | method -} - -func tap_control_code(request, method uint32) uint32 { - return ctl_code(34, request, method, 0) -} - -var ( - k32 = windows.NewLazySystemDLL("kernel32.dll") - procGetOverlappedResult = k32.NewProc("GetOverlappedResult") - TAP_IOCTL_GET_MTU = tap_control_code(3, 0) - TAP_IOCTL_SET_MEDIA_STATUS = tap_control_code(6, 0) - TAP_IOCTL_CONFIG_TUN = tap_control_code(10, 0) - TAP_WIN_IOCTL_CONFIG_DHCP_MASQ = tap_control_code(7, 0) - TAP_WIN_IOCTL_CONFIG_DHCP_SET_OPT = tap_control_code(9, 0) -) - -func decodeUTF16(b []byte) string { - if len(b)%2 != 0 { - return "" - } - - l := len(b) / 2 - u16 := make([]uint16, l) - for i := 0; i < l; i += 1 { - u16[i] = uint16(b[2*i]) + (uint16(b[2*i+1]) << 8) - } - return windows.UTF16ToString(u16) -} - -func getTuntapName(componentId string) (string, error) { - keyName := fmt.Sprintf(NETWORK_KEY+"\\%s\\Connection", componentId) - key, err := registry.OpenKey(registry.LOCAL_MACHINE, keyName, registry.READ) - if err != nil { - key.Close() - return "", err - } - var bufLength uint32 = TAPWIN32_MAX_REG_SIZE - buf := make([]byte, bufLength) - name, _ := windows.UTF16FromString("Name") - var valtype uint32 - err = windows.RegQueryValueEx( - windows.Handle(key), - &name[0], - nil, - &valtype, - &buf[0], - &bufLength, - ) - if err != nil { - key.Close() - return "", err - } - s := decodeUTF16(buf) - return s, nil -} - -func getTuntapComponentId(ifaceName string) (string, string, error) { - adapters, err := registry.OpenKey(registry.LOCAL_MACHINE, ADAPTER_KEY, registry.READ) - if err != nil { - return "", "", fmt.Errorf("failed to read adapter list: %v", err) - } - defer adapters.Close() - var i uint32 - for i = 0; i < 1000; i++ { - var name_length uint32 = TAPWIN32_MAX_REG_SIZE - buf := make([]uint16, name_length) - if err = windows.RegEnumKeyEx( - windows.Handle(adapters), - i, - &buf[0], - &name_length, - nil, - nil, - nil, - nil); err != nil { - return "", "", fmt.Errorf("failed to read name: %v", err) - } - key_name := windows.UTF16ToString(buf[:]) - adapter, err := registry.OpenKey(adapters, key_name, registry.READ) - defer adapter.Close() - if err != nil { - continue - } - name, _ := windows.UTF16FromString("ComponentId") - name2, _ := windows.UTF16FromString("NetCfgInstanceId") - var valtype uint32 - var component_id = make([]byte, TAPWIN32_MAX_REG_SIZE) - var componentLen = uint32(len(component_id)) - if err = windows.RegQueryValueEx( - windows.Handle(adapter), - &name[0], - nil, - &valtype, - &component_id[0], - &componentLen); err != nil { - continue - } - - id := decodeUTF16(component_id) - if id == TUNTAP_COMPONENT_ID_0901 || id == TUNTAP_COMPONENT_ID_0801 { - var valtype uint32 - var netCfgInstanceId = make([]byte, TAPWIN32_MAX_REG_SIZE) - var netCfgInstanceIdLen = uint32(len(netCfgInstanceId)) - if err = windows.RegQueryValueEx( - windows.Handle(adapter), - &name2[0], - nil, - &valtype, - &netCfgInstanceId[0], - &netCfgInstanceIdLen); err != nil { - return "", "", fmt.Errorf("failed to read net cfg instance id: %v", err) - } - s := decodeUTF16(netCfgInstanceId) - log.Printf("TAP device component ID: %s", s) - - devName, err := getTuntapName(s) - if err != nil { - return "", "", fmt.Errorf("failed to get tun/tap name: %v", err) - } - if len(ifaceName) == 0 { - return s, devName, nil - } else if devName == ifaceName { - return s, devName, nil - } - } - } - return "", "", errors.New("not found component id") -} - -func OpenTunDevice(name, addr, gw, mask string, dns []string, persist bool) (io.ReadWriteCloser, error) { - componentId, devName, err := getTuntapComponentId(name) - if err != nil { - return nil, fmt.Errorf("failed to get component ID: %v", err) - } - log.Printf("TAP device name: %s", devName) - - devId, _ := windows.UTF16FromString(fmt.Sprintf(`\\.\Global\%s.tap`, componentId)) - // set dhcp with netsh - cmd := exec.Command("netsh", "interface", "ip", "set", "address", devName, "dhcp") - cmd.Run() - cmd = exec.Command("netsh", "interface", "ip", "set", "dns", devName, "dhcp") - cmd.Run() - // open - fd, err := windows.CreateFile( - &devId[0], - windows.GENERIC_READ|windows.GENERIC_WRITE, - windows.FILE_SHARE_READ|windows.FILE_SHARE_WRITE, - nil, - windows.OPEN_EXISTING, - windows.FILE_ATTRIBUTE_SYSTEM|windows.FILE_FLAG_OVERLAPPED, - //windows.FILE_ATTRIBUTE_SYSTEM, - 0, - ) - if err != nil { - return nil, err - } - // set addresses with dhcp - var returnLen uint32 - tunAddr := net.ParseIP(addr).To4() - tunMask := net.ParseIP(mask).To4() - gwAddr := net.ParseIP(gw).To4() - addrParam := append(tunAddr, tunMask...) - addrParam = append(addrParam, gwAddr...) - lease := make([]byte, 4) - binary.BigEndian.PutUint32(lease[:], 86400) - addrParam = append(addrParam, lease...) - err = windows.DeviceIoControl( - fd, - TAP_WIN_IOCTL_CONFIG_DHCP_MASQ, - &addrParam[0], - uint32(len(addrParam)), - &addrParam[0], - uint32(len(addrParam)), - &returnLen, - nil, - ) - if err != nil { - windows.Close(fd) - return nil, err - } else { - log.Printf("Set %s with net/mask: %s/%s through DHCP", devName, addr, mask) - } - - // set dns with dncp - dnsParam := []byte{6, 4} - primaryDNS := net.ParseIP(dns[0]).To4() - dnsParam = append(dnsParam, primaryDNS...) - if len(dns) >= 2 { - secondaryDNS := net.ParseIP(dns[1]).To4() - dnsParam = append(dnsParam, secondaryDNS...) - dnsParam[1] += 4 - } - err = windows.DeviceIoControl( - fd, - TAP_WIN_IOCTL_CONFIG_DHCP_SET_OPT, - &dnsParam[0], - uint32(len(dnsParam)), - &addrParam[0], - uint32(len(dnsParam)), - &returnLen, - nil, - ) - if err != nil { - windows.Close(fd) - return nil, err - } else { - log.Printf("Set %s with DNS: %s through DHCP", devName, strings.Join(dns, ",")) - } - - // set connect. - inBuffer := []byte("\x01\x00\x00\x00") - err = windows.DeviceIoControl( - fd, - TAP_IOCTL_SET_MEDIA_STATUS, - &inBuffer[0], - uint32(len(inBuffer)), - &inBuffer[0], - uint32(len(inBuffer)), - &returnLen, - nil, - ) - if err != nil { - windows.Close(fd) - return nil, err - } - return newWinTapDev(fd, addr, gw), nil -} - -type winTapDev struct { - // TODO Not sure if a read lock is needed. - readLock sync.Mutex - // Write is not allowed concurrent accessing. - writeLock sync.Mutex - - fd windows.Handle - addr string - addrIP net.IP - gw string - gwIP net.IP - rBuf [2048]byte - wBuf [2048]byte - wInitiated bool - rOverlapped windows.Overlapped - wOverlapped windows.Overlapped -} - -func newWinTapDev(fd windows.Handle, addr string, gw string) *winTapDev { - rOverlapped := windows.Overlapped{} - rEvent, _ := windows.CreateEvent(nil, 0, 0, nil) - rOverlapped.HEvent = windows.Handle(rEvent) - - wOverlapped := windows.Overlapped{} - wEvent, _ := windows.CreateEvent(nil, 0, 0, nil) - wOverlapped.HEvent = windows.Handle(wEvent) - - dev := &winTapDev{ - fd: fd, - rOverlapped: rOverlapped, - wOverlapped: wOverlapped, - wInitiated: false, - - addr: addr, - addrIP: net.ParseIP(addr).To4(), - gw: gw, - gwIP: net.ParseIP(gw).To4(), - } - return dev -} - -func (dev *winTapDev) Read(data []byte) (int, error) { - dev.readLock.Lock() - defer dev.readLock.Unlock() - - for { - var done uint32 - var nr int - - err := windows.ReadFile(dev.fd, dev.rBuf[:], &done, &dev.rOverlapped) - if err != nil { - if err != windows.ERROR_IO_PENDING { - return 0, err - } else { - windows.WaitForSingleObject(dev.rOverlapped.HEvent, windows.INFINITE) - nr, err = getOverlappedResult(dev.fd, &dev.rOverlapped) - if err != nil { - return 0, err - } - } - } else { - nr = int(done) - } - if nr > 14 { - if isStopMarker(dev.rBuf[14:nr], dev.addrIP, dev.gwIP) { - return 0, errors.New("received stop marker") - } - - // discard IPv6 packets - if dev.rBuf[14]&0xf0 == 0x60 { - continue - } else if dev.rBuf[14]&0xf0 == 0x40 { - if !dev.wInitiated { - // copy ether header for writing - copy(dev.wBuf[:], dev.rBuf[6:12]) - copy(dev.wBuf[6:], dev.rBuf[0:6]) - copy(dev.wBuf[12:], dev.rBuf[12:14]) - dev.wInitiated = true - } - copy(data, dev.rBuf[14:nr]) - return nr - 14, nil - } - } - } -} - -func (dev *winTapDev) Write(data []byte) (int, error) { - dev.writeLock.Lock() - defer dev.writeLock.Unlock() - - var done uint32 - var nw int - - payloadL := copy(dev.wBuf[14:], data) - packetL := payloadL + 14 - err := windows.WriteFile(dev.fd, dev.wBuf[:packetL], &done, &dev.wOverlapped) - if err != nil { - if err != windows.ERROR_IO_PENDING { - return 0, err - } else { - windows.WaitForSingleObject(dev.wOverlapped.HEvent, windows.INFINITE) - nw, err = getOverlappedResult(dev.fd, &dev.wOverlapped) - if err != nil { - return 0, err - } - } - } else { - nw = int(done) - } - if nw != packetL { - return 0, fmt.Errorf("write %d packet (%d bytes payload), return %d", packetL, payloadL, nw) - } else { - return payloadL, nil - } -} - -func getOverlappedResult(h windows.Handle, overlapped *windows.Overlapped) (int, error) { - var n int - r, _, err := syscall.Syscall6(procGetOverlappedResult.Addr(), 4, - uintptr(h), - uintptr(unsafe.Pointer(overlapped)), - uintptr(unsafe.Pointer(&n)), 1, 0, 0) - if r == 0 { - return n, err - } - return n, nil -} - -func (dev *winTapDev) Close() error { - log.Printf("close winTap device") - sendStopMarker(dev.addr, dev.gw) - return windows.Close(dev.fd) -}