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386 lines
8.6 KiB
Go
386 lines
8.6 KiB
Go
package multiplex
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import (
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"bytes"
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"github.com/cbeuw/Cloak/internal/common"
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"io"
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"io/ioutil"
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"math/rand"
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"testing"
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"time"
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"github.com/cbeuw/connutil"
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)
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const payloadLen = 1000
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var emptyKey [32]byte
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func setupSesh(unordered bool, key [32]byte, encryptionMethod byte) *Session {
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obfuscator, _ := MakeObfuscator(encryptionMethod, key)
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seshConfig := SessionConfig{
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Obfuscator: obfuscator,
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Valve: nil,
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Unordered: unordered,
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}
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return MakeSession(0, seshConfig)
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}
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func BenchmarkStream_Write_Ordered(b *testing.B) {
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hole := connutil.Discard()
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var sessionKey [32]byte
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rand.Read(sessionKey[:])
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const testDataLen = 65536
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testData := make([]byte, testDataLen)
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rand.Read(testData)
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eMethods := map[string]byte{
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"plain": E_METHOD_PLAIN,
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"chacha20-poly1305": E_METHOD_CHACHA20_POLY1305,
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"aes-gcm": E_METHOD_AES_GCM,
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}
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for name, method := range eMethods {
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b.Run(name, func(b *testing.B) {
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sesh := setupSesh(false, sessionKey, method)
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sesh.AddConnection(hole)
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stream, _ := sesh.OpenStream()
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b.SetBytes(testDataLen)
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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stream.Write(testData)
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}
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})
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}
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}
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/*
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func BenchmarkStream_Read_Ordered(b *testing.B) {
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var sessionKey [32]byte
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rand.Read(sessionKey[:])
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sesh := setupSesh(false, sessionKey)
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testPayload := make([]byte, payloadLen)
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rand.Read(testPayload)
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f := &Frame{
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1,
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0,
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0,
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testPayload,
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}
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obfsBuf := make([]byte, 17000)
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l, _ := net.Listen("tcp", "127.0.0.1:0")
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go func() {
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// potentially bottlenecked here rather than the actual stream read throughput
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conn, _ := net.Dial("tcp", l.Addr().String())
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for {
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i, _ := sesh.Obfs(f, obfsBuf)
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f.Seq += 1
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_, err := conn.Write(obfsBuf[:i])
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if err != nil {
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b.Error("cannot write to connection", err)
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}
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}
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}()
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conn, _ := l.Accept()
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sesh.AddConnection(conn)
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stream, err := sesh.Accept()
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if err != nil {
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b.Error("failed to accept stream", err)
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}
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//time.Sleep(5*time.Second) // wait for buffer to fill up
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readBuf := make([]byte, payloadLen)
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b.SetBytes(payloadLen)
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b.ResetTimer()
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for j := 0; j < b.N; j++ {
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stream.Read(readBuf)
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}
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}
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*/
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func TestStream_Write(t *testing.T) {
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hole := connutil.Discard()
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var sessionKey [32]byte
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rand.Read(sessionKey[:])
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sesh := setupSesh(false, sessionKey, E_METHOD_PLAIN)
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sesh.AddConnection(hole)
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testData := make([]byte, payloadLen)
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rand.Read(testData)
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stream, _ := sesh.OpenStream()
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_, err := stream.Write(testData)
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if err != nil {
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t.Error(
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"For", "stream write",
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"got", err,
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)
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}
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}
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func TestStream_WriteSync(t *testing.T) {
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// Close calls made after write MUST have a higher seq
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var sessionKey [32]byte
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rand.Read(sessionKey[:])
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clientSesh := setupSesh(false, sessionKey, E_METHOD_PLAIN)
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serverSesh := setupSesh(false, sessionKey, E_METHOD_PLAIN)
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w, r := connutil.AsyncPipe()
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clientSesh.AddConnection(&common.TLSConn{Conn: w})
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serverSesh.AddConnection(&common.TLSConn{Conn: r})
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testData := make([]byte, payloadLen)
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rand.Read(testData)
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t.Run("test single", func(t *testing.T) {
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go func() {
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stream, _ := clientSesh.OpenStream()
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stream.Write(testData)
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stream.Close()
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}()
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recvBuf := make([]byte, payloadLen)
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serverStream, _ := serverSesh.Accept()
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_, err := io.ReadFull(serverStream, recvBuf)
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if err != nil {
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t.Error(err)
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}
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})
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t.Run("test multiple", func(t *testing.T) {
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const numStreams = 100
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for i := 0; i < numStreams; i++ {
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go func() {
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stream, _ := clientSesh.OpenStream()
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stream.Write(testData)
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stream.Close()
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}()
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}
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for i := 0; i < numStreams; i++ {
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recvBuf := make([]byte, payloadLen)
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serverStream, _ := serverSesh.Accept()
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_, err := io.ReadFull(serverStream, recvBuf)
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if err != nil {
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t.Error(err)
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}
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}
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})
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}
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func TestStream_Close(t *testing.T) {
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var sessionKey [32]byte
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rand.Read(sessionKey[:])
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sesh := setupSesh(false, sessionKey, E_METHOD_PLAIN)
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testPayload := []byte{42, 42, 42}
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f := &Frame{
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1,
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0,
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0,
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testPayload,
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}
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conn, writingEnd := connutil.AsyncPipe()
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sesh.AddConnection(conn)
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obfsBuf := make([]byte, 512)
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i, _ := sesh.Obfs(f, obfsBuf, 0)
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writingEnd.Write(obfsBuf[:i])
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time.Sleep(100 * time.Microsecond)
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stream, err := sesh.Accept()
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if err != nil {
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t.Error("failed to accept stream", err)
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return
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}
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err = stream.Close()
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if err != nil {
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t.Error("failed to actively close stream", err)
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return
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}
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if sI, _ := sesh.streams.Load(stream.(*Stream).id); sI != nil {
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t.Error("stream still exists")
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return
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}
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readBuf := make([]byte, len(testPayload))
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_, err = io.ReadFull(stream, readBuf)
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if err != nil {
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t.Errorf("can't read residual data %v", err)
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}
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if !bytes.Equal(readBuf, testPayload) {
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t.Errorf("read wrong data")
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}
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}
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func TestStream_Read(t *testing.T) {
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seshes := map[string]bool{
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"ordered": false,
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"unordered": true,
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}
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testPayload := []byte{42, 42, 42}
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const smallPayloadLen = 3
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f := &Frame{
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1,
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0,
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0,
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testPayload,
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}
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var streamID uint32
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buf := make([]byte, 10)
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obfsBuf := make([]byte, 512)
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for name, unordered := range seshes {
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sesh := setupSesh(unordered, emptyKey, E_METHOD_PLAIN)
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conn, writingEnd := connutil.AsyncPipe()
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sesh.AddConnection(conn)
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t.Run(name, func(t *testing.T) {
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t.Run("Plain read", func(t *testing.T) {
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f.StreamID = streamID
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i, _ := sesh.Obfs(f, obfsBuf, 0)
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streamID++
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writingEnd.Write(obfsBuf[:i])
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time.Sleep(100 * time.Microsecond)
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stream, err := sesh.Accept()
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if err != nil {
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t.Error("failed to accept stream", err)
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return
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}
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i, err = stream.Read(buf)
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if err != nil {
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t.Error("failed to read", err)
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return
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}
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if i != smallPayloadLen {
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t.Errorf("expected read %v, got %v", smallPayloadLen, i)
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return
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}
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if !bytes.Equal(buf[:i], testPayload) {
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t.Error("expected", testPayload,
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"got", buf[:i])
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return
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}
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})
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t.Run("Nil buf", func(t *testing.T) {
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f.StreamID = streamID
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i, _ := sesh.Obfs(f, obfsBuf, 0)
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streamID++
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writingEnd.Write(obfsBuf[:i])
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time.Sleep(100 * time.Microsecond)
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stream, _ := sesh.Accept()
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i, err := stream.Read(nil)
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if i != 0 || err != nil {
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t.Error("expecting", 0, nil,
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"got", i, err)
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}
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})
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t.Run("Read after stream close", func(t *testing.T) {
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f.StreamID = streamID
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i, _ := sesh.Obfs(f, obfsBuf, 0)
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streamID++
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writingEnd.Write(obfsBuf[:i])
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time.Sleep(100 * time.Microsecond)
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stream, _ := sesh.Accept()
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stream.Close()
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i, err := stream.Read(buf)
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if err != nil {
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t.Error("failed to read", err)
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}
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if i != smallPayloadLen {
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t.Errorf("expected read %v, got %v", smallPayloadLen, i)
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}
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if !bytes.Equal(buf[:i], testPayload) {
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t.Error("expected", testPayload,
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"got", buf[:i])
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}
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_, err = stream.Read(buf)
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if err == nil {
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t.Error("expecting error", ErrBrokenStream,
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"got nil error")
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}
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})
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t.Run("Read after session close", func(t *testing.T) {
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f.StreamID = streamID
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i, _ := sesh.Obfs(f, obfsBuf, 0)
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streamID++
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writingEnd.Write(obfsBuf[:i])
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time.Sleep(100 * time.Microsecond)
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stream, _ := sesh.Accept()
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sesh.Close()
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i, err := stream.Read(buf)
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if err != nil {
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t.Error("failed to read", err)
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}
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if i != smallPayloadLen {
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t.Errorf("expected read %v, got %v", smallPayloadLen, i)
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}
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if !bytes.Equal(buf[:i], testPayload) {
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t.Error("expected", testPayload,
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"got", buf[:i])
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}
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_, err = stream.Read(buf)
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if err == nil {
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t.Error("expecting error", ErrBrokenStream,
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"got nil error")
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}
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})
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})
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}
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}
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func TestStream_SetWriteToTimeout(t *testing.T) {
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seshes := map[string]*Session{
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"ordered": setupSesh(false, emptyKey, E_METHOD_PLAIN),
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"unordered": setupSesh(true, emptyKey, E_METHOD_PLAIN),
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}
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for name, sesh := range seshes {
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t.Run(name, func(t *testing.T) {
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stream, _ := sesh.OpenStream()
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stream.SetWriteToTimeout(100 * time.Millisecond)
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done := make(chan struct{})
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go func() {
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stream.WriteTo(ioutil.Discard)
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done <- struct{}{}
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}()
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select {
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case <-done:
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return
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case <-time.After(500 * time.Millisecond):
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t.Error("didn't timeout")
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}
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})
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}
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}
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func TestStream_SetReadFromTimeout(t *testing.T) {
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seshes := map[string]*Session{
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"ordered": setupSesh(false, emptyKey, E_METHOD_PLAIN),
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"unordered": setupSesh(true, emptyKey, E_METHOD_PLAIN),
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}
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for name, sesh := range seshes {
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t.Run(name, func(t *testing.T) {
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stream, _ := sesh.OpenStream()
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stream.SetReadFromTimeout(100 * time.Millisecond)
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done := make(chan struct{})
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go func() {
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stream.ReadFrom(connutil.Discard())
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done <- struct{}{}
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}()
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select {
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case <-done:
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return
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case <-time.After(500 * time.Millisecond):
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t.Error("didn't timeout")
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}
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})
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}
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}
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