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379 lines
8.2 KiB
Go
379 lines
8.2 KiB
Go
package multiplex
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import (
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"bufio"
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"bytes"
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"github.com/cbeuw/Cloak/internal/util"
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"io/ioutil"
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"math/rand"
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"net"
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"testing"
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"time"
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)
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func setupSesh(unordered bool) *Session {
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sessionKey := make([]byte, 32)
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rand.Read(sessionKey)
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obfuscator, _ := GenerateObfs(0x00, sessionKey)
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seshConfig := &SessionConfig{
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Obfuscator: obfuscator,
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Valve: nil,
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UnitRead: util.ReadTLS,
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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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type blackhole struct {
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hole *bufio.Writer
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}
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func newBlackHole() *blackhole { return &blackhole{hole: bufio.NewWriter(ioutil.Discard)} }
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func (b *blackhole) Read([]byte) (int, error) {
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time.Sleep(1 * time.Hour)
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return 0, nil
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}
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func (b *blackhole) Write(in []byte) (int, error) { return b.hole.Write(in) }
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func (b *blackhole) Close() error { return nil }
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func (b *blackhole) LocalAddr() net.Addr {
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ret, _ := net.ResolveTCPAddr("tcp", "127.0.0.1")
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return ret
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}
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func (b *blackhole) RemoteAddr() net.Addr {
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ret, _ := net.ResolveTCPAddr("tcp", "127.0.0.1")
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return ret
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}
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func (b *blackhole) SetDeadline(t time.Time) error { return nil }
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func (b *blackhole) SetReadDeadline(t time.Time) error { return nil }
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func (b *blackhole) SetWriteDeadline(t time.Time) error { return nil }
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func BenchmarkStream_Write_Ordered(b *testing.B) {
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const PAYLOAD_LEN = 1000
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hole := newBlackHole()
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sesh := setupSesh(false)
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sesh.AddConnection(hole)
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testData := make([]byte, PAYLOAD_LEN)
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rand.Read(testData)
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stream, _ := sesh.OpenStream()
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b.ResetTimer()
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for i := 0; i < b.N; i++ {
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_, err := stream.Write(testData)
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if err != nil {
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b.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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b.SetBytes(PAYLOAD_LEN)
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}
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}
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func BenchmarkStream_Read_Ordered(b *testing.B) {
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sesh := setupSesh(false)
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const PAYLOAD_LEN = 1000
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testPayload := make([]byte, PAYLOAD_LEN)
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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, PAYLOAD_LEN)
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b.ResetTimer()
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for j := 0; j < b.N; j++ {
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n, err := stream.Read(readBuf)
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if !bytes.Equal(readBuf, testPayload) {
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b.Error("paylod not equal")
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}
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b.SetBytes(int64(n))
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if err != nil {
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b.Error(err)
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}
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}
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}
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func TestStream_Read(t *testing.T) {
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sesh := setupSesh(false)
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testPayload := []byte{42, 42, 42}
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const PAYLOAD_LEN = 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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ch := make(chan []byte)
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l, _ := net.Listen("tcp", "127.0.0.1:0")
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go func() {
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conn, _ := net.Dial("tcp", l.Addr().String())
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for {
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data := <-ch
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_, err := conn.Write(data)
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if err != nil {
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t.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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var streamID uint32
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buf := make([]byte, 10)
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obfsBuf := make([]byte, 512)
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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)
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streamID++
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ch <- 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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}
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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 != PAYLOAD_LEN {
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t.Errorf("expected read %v, got %v", PAYLOAD_LEN, 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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})
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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)
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streamID++
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ch <- 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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stream.Close()
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i, err = stream.Read(nil)
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if i != 0 || err != ErrBrokenStream {
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t.Error("expecting", 0, ErrBrokenStream,
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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)
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streamID++
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ch <- 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 != PAYLOAD_LEN {
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t.Errorf("expected read %v, got %v", PAYLOAD_LEN, 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)
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streamID++
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ch <- 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 != PAYLOAD_LEN {
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t.Errorf("expected read %v, got %v", PAYLOAD_LEN, 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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func TestStream_UnorderedRead(t *testing.T) {
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sesh := setupSesh(true)
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testPayload := []byte{42, 42, 42}
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const PAYLOAD_LEN = 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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ch := make(chan []byte)
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l, _ := net.Listen("tcp", "127.0.0.1:0")
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go func() {
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conn, _ := net.Dial("tcp", l.Addr().String())
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for {
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data := <-ch
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_, err := conn.Write(data)
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if err != nil {
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t.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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var streamID uint32
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buf := make([]byte, 10)
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obfsBuf := make([]byte, 512)
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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)
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streamID++
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ch <- 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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}
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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 != PAYLOAD_LEN {
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t.Errorf("expected read %v, got %v", PAYLOAD_LEN, 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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})
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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)
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streamID++
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ch <- 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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stream.Close()
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i, err = stream.Read(nil)
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if i != 0 || err != ErrBrokenStream {
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t.Error("expecting", 0, ErrBrokenStream,
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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)
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streamID++
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ch <- 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 != PAYLOAD_LEN {
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t.Errorf("expected read %v, got %v", PAYLOAD_LEN, 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)
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streamID++
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ch <- 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 != PAYLOAD_LEN {
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t.Errorf("expected read %v, got %v", PAYLOAD_LEN, 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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