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Use static linking for libpcap and fix error with truncated packets

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This commit is contained in:
Leonid Bugaev
2016-05-03 17:55:38 +05:00
parent ba227ae9ba
commit 281219e6a0
2 changed files with 12 additions and 1 deletions
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Makefile
+1 -1
View File
@@ -6,7 +6,7 @@ BENCHMARK = BenchmarkRAWInput
release: release-x64
release-x64:
docker run -v `pwd`:$(SOURCE_PATH) -t --env GOOS=linux --env GOARCH=amd64 -i gor go build -ldflags "-X main.VERSION=$(VERSION)"&& tar -czf gor_$(VERSION)_x64.tar.gz gor && rm gor
docker run -v `pwd`:$(SOURCE_PATH) -t --env GOOS=linux --env GOARCH=amd64 -i gor go build -ldflags "-X main.VERSION=$(VERSION) -extldflags "-static""&& tar -czf gor_$(VERSION)_x64.tar.gz gor && rm gor
release-x86:
docker run -v `pwd`:$(SOURCE_PATH) -t --env GOOS=linux --env GOARCH=386 -i gor go build -ldflags "-X main.VERSION=$(VERSION)" && tar -czf gor_$(VERSION)_x86.tar.gz gor && rm gor
raw_socket_listener/listener.go
+11
View File
@@ -283,9 +283,20 @@ func (t *Listener) readPcap() {
// Skip ethernet layer, 14 bytes
data := packet.Data()[14:]
ihl := uint8(data[0]) & 0x0F
// Truncated IP info
if len(data) < int(ihl*4) {
continue
}
srcIP := data[12:16]
data = data[ihl*4:]
// Truncated TCP info
if len(data) < 13 {
continue
}
dataOffset := (data[12] & 0xF0) >> 4
// We need only packets with data inside