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### performance - handling of the very big packet(any size that can be buffered) - speeding up TCP sessions by using message hints: Added **proto.HasFullPayload** that helps to validate the entire HTTP request, it supports `Chunked` encoding too! Added **proto.HasRequestTitle** and **proto.HasResponseTitle** for validating the beginning of HTTP request. Those methods are used `input_raw.go` with `TCP`. - supports Keep-Alive: the above functions helps to support keep-alive ### Packaging - **capture:** engines(capture/doc.go) - **tcp:** tcp message parser (tcp/doc.go) ### benchmarking - **capture.BenchmarkPcapDump:** the benchmarks regarding dumping packets in a pcap file - **capture.BenchmarkPcapFile:** the benchmarks of reading packets from a pcap file - **capture.BenchmarkPcap:** the benchmarks of parsing packets from the loopback interface with pcap handles - **proto.BenchmarkHasFullPayload:**: benchmarking this function which validates the HTTP payload - **tcp.BenchmarkPacketParseAndSort:** benchmarks of parsing and sorting packets - **tcp.BenchmarkMessageParserWithoutHint:** benchmarks of message reasembling by using `SYN` and `FIN` flag - **tcp.BenchmarkMessageParserWithHint:** benchmarks of message reasembling by using `proto.HasRequestTitle` and `proto.HasFullPayload` flag ### issues see linked issues ### tests - fixed input raw and engine tests **Most of the changed of the files, was about using functionalities of** `tcp` **and** `capture` **in existing functionalities**
28 lines
1.0 KiB
Go
28 lines
1.0 KiB
Go
/*
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Package tcp implements TCP transport layer protocol, it is responsible for
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parsing, reassembling tcp packets, handling communication with engine listeners(github.com/buger/goreplay/capture),
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and reporting errors and statistics of packets.
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the packets are parsed by following TCP way(https://en.wikipedia.org/wiki/Transmission_Control_Protocol#TCP_segment_structure).
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example:
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import "github.com/buger/goreplay/tcp"
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messageExpire := time.Second*5
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maxSize := 5 << 20
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debugger := func(debugLevel int, data ...interface{}){} // debugger can also be nil
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messageHandler := func(mssg *tcp.Message){}
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mssgPool := tcp.NewMessagePool(maxMessageSize, messageExpire, debugger, messageHandler)
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listener.Listen(ctx, mssgPool.Handler)
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you can use pool.End or/and pool.Start to set custom session behaviors
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debugLevel in debugger function indicates the priority of the logs, the bigger the number the lower
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the priority. errors are signified by debug level 4 for errors, 5 for discarded packets, and 6 for received packets.
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*/
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package tcp // import github.com/buger/goreplay/tcp
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