mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-10 02:53:12 +00:00
Improve multiplexer
This commit is contained in:
parent
8e4de29409
commit
03890151d7
|
@ -15,40 +15,44 @@ import (
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M "github.com/sagernet/sing/common/metadata"
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N "github.com/sagernet/sing/common/network"
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"github.com/sagernet/sing/common/x/list"
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"github.com/hashicorp/yamux"
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)
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var _ N.Dialer = (*Client)(nil)
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type Client struct {
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access sync.Mutex
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connections list.List[*yamux.Session]
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connections list.List[abstractSession]
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ctx context.Context
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dialer N.Dialer
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protocol Protocol
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maxConnections int
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minStreams int
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maxStreams int
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}
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func NewClient(ctx context.Context, dialer N.Dialer, maxConnections int, minStreams int, maxStreams int) *Client {
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func NewClient(ctx context.Context, dialer N.Dialer, protocol Protocol, maxConnections int, minStreams int, maxStreams int) *Client {
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return &Client{
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ctx: ctx,
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dialer: dialer,
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protocol: protocol,
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maxConnections: maxConnections,
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minStreams: minStreams,
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maxStreams: maxStreams,
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}
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}
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func NewClientWithOptions(ctx context.Context, dialer N.Dialer, options option.MultiplexOptions) N.Dialer {
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func NewClientWithOptions(ctx context.Context, dialer N.Dialer, options option.MultiplexOptions) (N.Dialer, error) {
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if !options.Enabled {
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return dialer
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return dialer, nil
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}
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if options.MaxConnections == 0 && options.MaxStreams == 0 {
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options.MinStreams = 8
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}
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return NewClient(ctx, dialer, options.MaxConnections, options.MinStreams, options.MaxStreams)
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protocol, err := ParseProtocol(options.Protocol)
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if err != nil {
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return nil, err
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}
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return NewClient(ctx, dialer, protocol, options.MaxConnections, options.MinStreams, options.MaxStreams), nil
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}
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func (c *Client) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
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@ -80,8 +84,8 @@ func (c *Client) ListenPacket(ctx context.Context, destination M.Socksaddr) (net
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func (c *Client) openStream() (net.Conn, error) {
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var (
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session *yamux.Session
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stream *yamux.Stream
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session abstractSession
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stream net.Conn
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err error
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)
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for attempts := 0; attempts < 2; attempts++ {
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@ -89,7 +93,7 @@ func (c *Client) openStream() (net.Conn, error) {
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if err != nil {
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continue
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}
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stream, err = session.OpenStream()
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stream, err = session.Open()
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if err != nil {
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continue
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}
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@ -101,11 +105,11 @@ func (c *Client) openStream() (net.Conn, error) {
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return &wrapStream{stream}, nil
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}
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func (c *Client) offer() (*yamux.Session, error) {
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func (c *Client) offer() (abstractSession, error) {
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c.access.Lock()
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defer c.access.Unlock()
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sessions := make([]*yamux.Session, 0, c.maxConnections)
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sessions := make([]abstractSession, 0, c.maxConnections)
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for element := c.connections.Front(); element != nil; {
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if element.Value.IsClosed() {
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nextElement := element.Next()
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@ -120,10 +124,7 @@ func (c *Client) offer() (*yamux.Session, error) {
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if sLen == 0 {
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return c.offerNew()
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}
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// session := common.MinBy(sessions, yamux.Session.NumStreams)
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session := common.MinBy(sessions, func(it *yamux.Session) int {
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return it.NumStreams()
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})
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session := common.MinBy(sessions, abstractSession.NumStreams)
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numStreams := session.NumStreams()
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if numStreams == 0 {
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return session, nil
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@ -140,12 +141,12 @@ func (c *Client) offer() (*yamux.Session, error) {
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return c.offerNew()
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}
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func (c *Client) offerNew() (*yamux.Session, error) {
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func (c *Client) offerNew() (abstractSession, error) {
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conn, err := c.dialer.DialContext(c.ctx, N.NetworkTCP, Destination)
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if err != nil {
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return nil, err
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}
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session, err := yamux.Client(conn, newMuxConfig())
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session, err := c.protocol.newClient(&protocolConn{Conn: conn, protocol: c.protocol})
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if err != nil {
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return nil, err
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}
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@ -170,7 +171,7 @@ type ClientConn struct {
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}
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func (c *ClientConn) readResponse() error {
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response, err := ReadResponse(c.Conn)
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response, err := ReadStreamResponse(c.Conn)
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if err != nil {
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return err
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}
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@ -195,7 +196,7 @@ func (c *ClientConn) Write(b []byte) (n int, err error) {
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if c.requestWrite {
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return c.Conn.Write(b)
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}
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request := Request{
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request := StreamRequest{
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Network: N.NetworkTCP,
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Destination: c.destination,
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}
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@ -203,7 +204,7 @@ func (c *ClientConn) Write(b []byte) (n int, err error) {
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defer common.KeepAlive(_buffer)
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buffer := common.Dup(_buffer)
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defer buffer.Release()
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EncodeRequest(request, buffer)
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EncodeStreamRequest(request, buffer)
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buffer.Write(b)
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_, err = c.Conn.Write(buffer.Bytes())
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if err != nil {
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@ -255,7 +256,7 @@ type ClientPacketConn struct {
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}
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func (c *ClientPacketConn) readResponse() error {
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response, err := ReadResponse(c.ExtendedConn)
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response, err := ReadStreamResponse(c.ExtendedConn)
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if err != nil {
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return err
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}
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@ -285,7 +286,7 @@ func (c *ClientPacketConn) Read(b []byte) (n int, err error) {
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}
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func (c *ClientPacketConn) writeRequest(payload []byte) (n int, err error) {
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request := Request{
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request := StreamRequest{
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Network: N.NetworkUDP,
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Destination: c.destination,
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}
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@ -297,7 +298,7 @@ func (c *ClientPacketConn) writeRequest(payload []byte) (n int, err error) {
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defer common.KeepAlive(_buffer)
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buffer := common.Dup(_buffer)
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defer buffer.Release()
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EncodeRequest(request, buffer)
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EncodeStreamRequest(request, buffer)
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if len(payload) > 0 {
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common.Must(
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binary.Write(buffer, binary.BigEndian, uint16(len(payload))),
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@ -363,7 +364,7 @@ type ClientPacketAddrConn struct {
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}
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func (c *ClientPacketAddrConn) readResponse() error {
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response, err := ReadResponse(c.ExtendedConn)
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response, err := ReadStreamResponse(c.ExtendedConn)
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if err != nil {
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return err
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}
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@ -399,7 +400,7 @@ func (c *ClientPacketAddrConn) ReadFrom(p []byte) (n int, addr net.Addr, err err
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}
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func (c *ClientPacketAddrConn) writeRequest(payload []byte, destination M.Socksaddr) (n int, err error) {
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request := Request{
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request := StreamRequest{
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Network: N.NetworkUDP,
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Destination: c.destination,
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PacketAddr: true,
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@ -412,7 +413,7 @@ func (c *ClientPacketAddrConn) writeRequest(payload []byte, destination M.Socksa
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defer common.KeepAlive(_buffer)
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buffer := common.Dup(_buffer)
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defer buffer.Release()
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EncodeRequest(request, buffer)
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EncodeStreamRequest(request, buffer)
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if len(payload) > 0 {
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common.Must(
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M.SocksaddrSerializer.WriteAddrPort(buffer, destination),
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@ -14,6 +14,7 @@ import (
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"github.com/sagernet/sing/common/rw"
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"github.com/hashicorp/yamux"
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"github.com/xtaci/smux"
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)
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var Destination = M.Socksaddr{
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@ -21,7 +22,55 @@ var Destination = M.Socksaddr{
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Port: 444,
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}
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func newMuxConfig() *yamux.Config {
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const (
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ProtocolYAMux Protocol = 0
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ProtocolSMux Protocol = 1
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)
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type Protocol byte
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func ParseProtocol(name string) (Protocol, error) {
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switch name {
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case "", "yamux":
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return ProtocolYAMux, nil
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case "smux":
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return ProtocolSMux, nil
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default:
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return ProtocolYAMux, E.New("unknown multiplex protocol: ", name)
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}
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}
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func (p Protocol) newServer(conn net.Conn) (abstractSession, error) {
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switch p {
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case ProtocolYAMux:
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return yamux.Server(conn, yaMuxConfig())
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case ProtocolSMux:
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session, err := smux.Server(conn, nil)
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if err != nil {
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return nil, err
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}
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return &smuxSession{session}, nil
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default:
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panic("unknown protocol")
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}
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}
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func (p Protocol) newClient(conn net.Conn) (abstractSession, error) {
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switch p {
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case ProtocolYAMux:
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return yamux.Client(conn, yaMuxConfig())
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case ProtocolSMux:
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session, err := smux.Client(conn, nil)
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if err != nil {
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return nil, err
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}
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return &smuxSession{session}, nil
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default:
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panic("unknown protocol")
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}
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}
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func yaMuxConfig() *yamux.Config {
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config := yamux.DefaultConfig()
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config.LogOutput = io.Discard
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config.StreamCloseTimeout = C.TCPTimeout
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@ -29,18 +78,23 @@ func newMuxConfig() *yamux.Config {
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return config
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}
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func (p Protocol) String() string {
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switch p {
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case ProtocolYAMux:
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return "yamux"
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case ProtocolSMux:
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return "smux"
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default:
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return "unknown"
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}
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}
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const (
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version0 = 0
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flagUDP = 1
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flagAddr = 2
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statusSuccess = 0
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statusError = 1
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version0 = 0
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)
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type Request struct {
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Network string
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Destination M.Socksaddr
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PacketAddr bool
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Protocol Protocol
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}
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func ReadRequest(reader io.Reader) (*Request, error) {
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@ -51,8 +105,37 @@ func ReadRequest(reader io.Reader) (*Request, error) {
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if version != version0 {
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return nil, E.New("unsupported version: ", version)
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}
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protocol, err := rw.ReadByte(reader)
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if err != nil {
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return nil, err
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}
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if protocol > byte(ProtocolSMux) {
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return nil, E.New("unsupported protocol: ", protocol)
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}
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return &Request{Protocol: Protocol(protocol)}, nil
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}
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func EncodeRequest(buffer *buf.Buffer, request Request) {
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buffer.WriteByte(version0)
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buffer.WriteByte(byte(request.Protocol))
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}
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const (
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flagUDP = 1
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flagAddr = 2
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statusSuccess = 0
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statusError = 1
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)
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type StreamRequest struct {
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Network string
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Destination M.Socksaddr
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PacketAddr bool
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}
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func ReadStreamRequest(reader io.Reader) (*StreamRequest, error) {
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var flags uint16
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err = binary.Read(reader, binary.BigEndian, &flags)
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err := binary.Read(reader, binary.BigEndian, &flags)
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if err != nil {
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return nil, err
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}
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@ -68,10 +151,10 @@ func ReadRequest(reader io.Reader) (*Request, error) {
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network = N.NetworkUDP
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udpAddr = flags&flagAddr != 0
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}
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return &Request{network, destination, udpAddr}, nil
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return &StreamRequest{network, destination, udpAddr}, nil
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}
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func requestLen(request Request) int {
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func requestLen(request StreamRequest) int {
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var rLen int
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rLen += 1 // version
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rLen += 2 // flags
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@ -79,7 +162,7 @@ func requestLen(request Request) int {
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return rLen
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}
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func EncodeRequest(request Request, buffer *buf.Buffer) {
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func EncodeStreamRequest(request StreamRequest, buffer *buf.Buffer) {
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destination := request.Destination
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var flags uint16
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if request.Network == N.NetworkUDP {
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@ -92,19 +175,18 @@ func EncodeRequest(request Request, buffer *buf.Buffer) {
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}
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}
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common.Must(
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buffer.WriteByte(version0),
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binary.Write(buffer, binary.BigEndian, flags),
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M.SocksaddrSerializer.WriteAddrPort(buffer, destination),
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)
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}
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type Response struct {
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type StreamResponse struct {
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Status uint8
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Message string
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}
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func ReadResponse(reader io.Reader) (*Response, error) {
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var response Response
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func ReadStreamResponse(reader io.Reader) (*StreamResponse, error) {
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var response StreamResponse
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status, err := rw.ReadByte(reader)
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if err != nil {
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return nil, err
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@ -14,12 +14,14 @@ import (
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M "github.com/sagernet/sing/common/metadata"
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N "github.com/sagernet/sing/common/network"
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"github.com/sagernet/sing/common/rw"
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"github.com/hashicorp/yamux"
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)
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func NewConnection(ctx context.Context, router adapter.Router, errorHandler E.Handler, logger log.ContextLogger, conn net.Conn, metadata adapter.InboundContext) error {
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session, err := yamux.Server(conn, newMuxConfig())
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request, err := ReadRequest(conn)
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if err != nil {
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return err
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}
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session, err := request.Protocol.newServer(conn)
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if err != nil {
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return err
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}
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@ -34,7 +36,7 @@ func NewConnection(ctx context.Context, router adapter.Router, errorHandler E.Ha
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func newConnection(ctx context.Context, router adapter.Router, errorHandler E.Handler, logger log.ContextLogger, stream net.Conn, metadata adapter.InboundContext) {
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stream = &wrapStream{stream}
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request, err := ReadRequest(stream)
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request, err := ReadStreamRequest(stream)
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if err != nil {
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logger.ErrorContext(ctx, err)
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return
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71
common/mux/session.go
Normal file
71
common/mux/session.go
Normal file
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@ -0,0 +1,71 @@
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package mux
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import (
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"io"
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"net"
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"github.com/sagernet/sing/common"
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"github.com/sagernet/sing/common/buf"
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"github.com/sagernet/sing/common/bufio"
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"github.com/xtaci/smux"
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)
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type abstractSession interface {
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Open() (net.Conn, error)
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Accept() (net.Conn, error)
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NumStreams() int
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Close() error
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IsClosed() bool
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}
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var _ abstractSession = (*smuxSession)(nil)
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type smuxSession struct {
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*smux.Session
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}
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func (s *smuxSession) Open() (net.Conn, error) {
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return s.OpenStream()
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}
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func (s *smuxSession) Accept() (net.Conn, error) {
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return s.AcceptStream()
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}
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type protocolConn struct {
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net.Conn
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protocol Protocol
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protocolWritten bool
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}
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func (c *protocolConn) Write(p []byte) (n int, err error) {
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if c.protocolWritten {
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return c.Conn.Write(p)
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}
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_buffer := buf.StackNewSize(2 + len(p))
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defer common.KeepAlive(_buffer)
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buffer := common.Dup(_buffer)
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defer buffer.Release()
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EncodeRequest(buffer, Request{
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Protocol: c.protocol,
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})
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common.Must(common.Error(buffer.Write(p)))
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n, err = c.Conn.Write(buffer.Bytes())
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if err == nil {
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n--
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}
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c.protocolWritten = true
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return n, err
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}
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func (c *protocolConn) ReadFrom(r io.Reader) (n int64, err error) {
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if !c.protocolWritten {
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return bufio.ReadFrom0(c, r)
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}
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return bufio.Copy(c.Conn, r)
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}
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func (c *protocolConn) Upstream() any {
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return c.Conn
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}
|
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@ -7,6 +7,7 @@
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```json
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{
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"enabled": true,
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"protocol": "yamux",
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"max_connections": 4,
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"min_streams": 4,
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"max_streams": 0
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|
@ -19,6 +20,17 @@
|
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|
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Enable multiplex.
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|
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#### protocol
|
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|
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Multiplex protocol.
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|
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| Protocol | Description |
|
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|----------|------------------------------------|
|
||||
| yamux | https://github.com/hashicorp/yamux |
|
||||
| smux | https://github.com/xtaci/smux |
|
||||
|
||||
YAMux is used by default.
|
||||
|
||||
#### max_connections
|
||||
|
||||
Maximum connections.
|
||||
|
|
1
go.mod
1
go.mod
|
@ -20,6 +20,7 @@ require (
|
|||
github.com/sagernet/sing-vmess v0.0.0-20220802053753-a38d3b22e6b9
|
||||
github.com/spf13/cobra v1.5.0
|
||||
github.com/stretchr/testify v1.8.0
|
||||
github.com/xtaci/smux v1.5.16
|
||||
go.uber.org/atomic v1.9.0
|
||||
golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa
|
||||
golang.org/x/net v0.0.0-20220802222814-0bcc04d9c69b
|
||||
|
|
2
go.sum
2
go.sum
|
@ -201,6 +201,8 @@ github.com/viant/assertly v0.4.8/go.mod h1:aGifi++jvCrUaklKEKT0BU95igDNaqkvz+49u
|
|||
github.com/viant/toolbox v0.24.0/go.mod h1:OxMCG57V0PXuIP2HNQrtJf2CjqdmbrOx5EkMILuUhzM=
|
||||
github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 h1:gga7acRE695APm9hlsSMoOoE65U4/TcqNj90mc69Rlg=
|
||||
github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
|
||||
github.com/xtaci/smux v1.5.16 h1:FBPYOkW8ZTjLKUM4LI4xnnuuDC8CQ/dB04HD519WoEk=
|
||||
github.com/xtaci/smux v1.5.16/go.mod h1:OMlQbT5vcgl2gb49mFkYo6SMf+zP3rcjcwQz7ZU7IGY=
|
||||
github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
|
||||
github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
|
||||
go.opencensus.io v0.18.0/go.mod h1:vKdFvxhtzZ9onBp9VKHK8z/sRpBMnKAsufL7wlDrCOA=
|
||||
|
|
|
@ -100,8 +100,9 @@ func (o ServerOptions) Build() M.Socksaddr {
|
|||
}
|
||||
|
||||
type MultiplexOptions struct {
|
||||
Enabled bool `json:"enabled,omitempty"`
|
||||
MaxConnections int `json:"max_connections,omitempty"`
|
||||
MinStreams int `json:"min_streams,omitempty"`
|
||||
MaxStreams int `json:"max_streams,omitempty"`
|
||||
Enabled bool `json:"enabled,omitempty"`
|
||||
Protocol string `json:"protocol,omitempty"`
|
||||
MaxConnections int `json:"max_connections,omitempty"`
|
||||
MinStreams int `json:"min_streams,omitempty"`
|
||||
MaxStreams int `json:"max_streams,omitempty"`
|
||||
}
|
||||
|
|
|
@ -46,7 +46,10 @@ func NewShadowsocks(ctx context.Context, router adapter.Router, logger log.Conte
|
|||
method: method,
|
||||
serverAddr: options.ServerOptions.Build(),
|
||||
}
|
||||
outbound.multiplexDialer = mux.NewClientWithOptions(ctx, (*shadowsocksDialer)(outbound), common.PtrValueOrDefault(options.Multiplex))
|
||||
outbound.multiplexDialer, err = mux.NewClientWithOptions(ctx, (*shadowsocksDialer)(outbound), common.PtrValueOrDefault(options.Multiplex))
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
return outbound, nil
|
||||
}
|
||||
|
||||
|
|
|
@ -32,13 +32,13 @@ func (r *Router) Exchange(ctx context.Context, message *dnsmessage.Message) (*dn
|
|||
}
|
||||
|
||||
func (r *Router) Lookup(ctx context.Context, domain string, strategy dns.DomainStrategy) ([]netip.Addr, error) {
|
||||
r.dnsLogger.Debug(ctx, "lookup domain ", domain)
|
||||
r.dnsLogger.DebugContext(ctx, "lookup domain ", domain)
|
||||
ctx, transport := r.matchDNS(ctx)
|
||||
ctx, cancel := context.WithTimeout(ctx, C.DNSTimeout)
|
||||
defer cancel()
|
||||
addrs, err := r.dnsClient.Lookup(ctx, transport, domain, strategy)
|
||||
if len(addrs) > 0 {
|
||||
r.logger.InfoContext(ctx, "lookup succeed for ", domain, ": ", F.MapToString(addrs))
|
||||
r.logger.InfoContext(ctx, "lookup succeed for ", domain, ": ", strings.Join(F.MapToString(addrs), " "))
|
||||
} else {
|
||||
r.logger.ErrorContext(ctx, E.Cause(err, "lookup failed for ", domain))
|
||||
}
|
||||
|
|
|
@ -58,6 +58,7 @@ require (
|
|||
github.com/sagernet/sing-vmess v0.0.0-20220802053753-a38d3b22e6b9 // indirect
|
||||
github.com/sirupsen/logrus v1.8.1 // indirect
|
||||
github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 // indirect
|
||||
github.com/xtaci/smux v1.5.16 // indirect
|
||||
go.uber.org/atomic v1.9.0 // indirect
|
||||
golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa // indirect
|
||||
golang.org/x/mod v0.5.1 // indirect
|
||||
|
|
|
@ -228,6 +228,8 @@ github.com/viant/assertly v0.4.8/go.mod h1:aGifi++jvCrUaklKEKT0BU95igDNaqkvz+49u
|
|||
github.com/viant/toolbox v0.24.0/go.mod h1:OxMCG57V0PXuIP2HNQrtJf2CjqdmbrOx5EkMILuUhzM=
|
||||
github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 h1:gga7acRE695APm9hlsSMoOoE65U4/TcqNj90mc69Rlg=
|
||||
github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74/go.mod h1:DD4vA1DwXk04H54A1oHXtwZmA0grkVMdPxx/VGLCah0=
|
||||
github.com/xtaci/smux v1.5.16 h1:FBPYOkW8ZTjLKUM4LI4xnnuuDC8CQ/dB04HD519WoEk=
|
||||
github.com/xtaci/smux v1.5.16/go.mod h1:OMlQbT5vcgl2gb49mFkYo6SMf+zP3rcjcwQz7ZU7IGY=
|
||||
github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
|
||||
github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
|
||||
github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k=
|
||||
|
|
|
@ -4,12 +4,24 @@ import (
|
|||
"net/netip"
|
||||
"testing"
|
||||
|
||||
"github.com/sagernet/sing-box/common/mux"
|
||||
C "github.com/sagernet/sing-box/constant"
|
||||
"github.com/sagernet/sing-box/option"
|
||||
"github.com/sagernet/sing-shadowsocks/shadowaead_2022"
|
||||
)
|
||||
|
||||
func TestShadowsocksMux(t *testing.T) {
|
||||
for _, protocol := range []mux.Protocol{
|
||||
mux.ProtocolYAMux,
|
||||
mux.ProtocolSMux,
|
||||
} {
|
||||
t.Run(protocol.String(), func(t *testing.T) {
|
||||
testShadowsocksMux(t, protocol.String())
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func testShadowsocksMux(t *testing.T, protocol string) {
|
||||
method := shadowaead_2022.List[0]
|
||||
password := mkBase64(t, 16)
|
||||
startInstance(t, option.Options{
|
||||
|
@ -54,7 +66,8 @@ func TestShadowsocksMux(t *testing.T) {
|
|||
Method: method,
|
||||
Password: password,
|
||||
Multiplex: &option.MultiplexOptions{
|
||||
Enabled: true,
|
||||
Enabled: true,
|
||||
Protocol: protocol,
|
||||
},
|
||||
},
|
||||
},
|
||||
|
|
Loading…
Reference in a new issue