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https://github.com/XTLS/Xray-core.git
synced 2024-11-04 12:09:19 +02:00
Fix Freedom Outbound UDP redirect
已检查 b.UDP 各源头:Mux(VLESS、VMess)、Trojan、Shadowsocks、Socks、TPROXY(Dokodemo-door)
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@ -97,13 +97,16 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
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return newError("target not specified.")
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}
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destination := outbound.Target
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UDPOverride := net.UDPDestination(nil, 0)
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if h.config.DestinationOverride != nil {
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server := h.config.DestinationOverride.Server
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if isValidAddress(server.Address) {
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destination.Address = server.Address.AsAddress()
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UDPOverride.Address = destination.Address
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}
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if server.Port != 0 {
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destination.Port = net.Port(server.Port)
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UDPOverride.Port = destination.Port
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}
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}
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newError("opening connection to ", destination).WriteToLog(session.ExportIDToError(ctx))
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@ -149,7 +152,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
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if destination.Network == net.Network_TCP {
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writer = buf.NewWriter(conn)
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} else {
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writer = NewPacketWriter(conn, h, ctx)
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writer = NewPacketWriter(conn, h, ctx, UDPOverride)
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}
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if err := buf.Copy(input, writer, buf.UpdateActivity(timer)); err != nil {
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@ -226,7 +229,7 @@ func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
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return buf.MultiBuffer{b}, nil
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}
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func NewPacketWriter(conn net.Conn, h *Handler, ctx context.Context) buf.Writer {
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func NewPacketWriter(conn net.Conn, h *Handler, ctx context.Context, UDPOverride net.Destination) buf.Writer {
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iConn := conn
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statConn, ok := iConn.(*internet.StatCouterConnection)
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if ok {
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@ -242,6 +245,7 @@ func NewPacketWriter(conn net.Conn, h *Handler, ctx context.Context) buf.Writer
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Counter: counter,
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Handler: h,
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Context: ctx,
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UDPOverride: UDPOverride,
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}
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}
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return &buf.SequentialWriter{Writer: conn}
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@ -252,6 +256,7 @@ type PacketWriter struct {
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stats.Counter
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*Handler
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context.Context
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UDPOverride net.Destination
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}
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func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
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@ -264,6 +269,12 @@ func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
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var n int
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var err error
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if b.UDP != nil {
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if w.UDPOverride.Address != nil {
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b.UDP.Address = w.UDPOverride.Address
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}
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if w.UDPOverride.Port != 0 {
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b.UDP.Port = w.UDPOverride.Port
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}
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if w.Handler.config.useIP() && b.UDP.Address.Family().IsDomain() {
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ip := w.Handler.resolveIP(w.Context, b.UDP.Address.Domain(), nil)
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if ip != nil {
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