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https://github.com/SagerNet/sing-box.git
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Fix direct UDP override
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parent
2f31202c6b
commit
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@ -12,7 +12,6 @@ import (
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"github.com/sagernet/sing-box/log"
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"github.com/sagernet/sing-box/option"
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"github.com/sagernet/sing-dns"
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"github.com/sagernet/sing/common/buf"
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"github.com/sagernet/sing/common/bufio"
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E "github.com/sagernet/sing/common/exceptions"
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M "github.com/sagernet/sing/common/metadata"
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@ -123,6 +122,7 @@ func (h *Direct) ListenPacket(ctx context.Context, destination M.Socksaddr) (net
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ctx, metadata := adapter.ExtendContext(ctx)
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metadata.Outbound = h.tag
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metadata.Destination = destination
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originDestination := destination
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switch h.overrideOption {
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case 1:
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destination = h.overrideDestination
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@ -142,11 +142,10 @@ func (h *Direct) ListenPacket(ctx context.Context, destination M.Socksaddr) (net
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if err != nil {
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return nil, err
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}
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if h.overrideOption == 0 {
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return conn, nil
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} else {
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return &overridePacketConn{bufio.NewPacketConn(conn), destination}, nil
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if originDestination != destination {
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conn = bufio.NewNATPacketConn(bufio.NewPacketConn(conn), destination, originDestination)
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}
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return conn, nil
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}
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func (h *Direct) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
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@ -156,20 +155,3 @@ func (h *Direct) NewConnection(ctx context.Context, conn net.Conn, metadata adap
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func (h *Direct) NewPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
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return NewPacketConnection(ctx, h, conn, metadata)
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}
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type overridePacketConn struct {
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N.NetPacketConn
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overrideDestination M.Socksaddr
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}
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func (c *overridePacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) error {
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return c.NetPacketConn.WritePacket(buffer, c.overrideDestination)
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}
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func (c *overridePacketConn) WriteTo(p []byte, addr net.Addr) (n int, err error) {
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return c.NetPacketConn.WriteTo(p, c.overrideDestination.UDPAddr())
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}
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func (c *overridePacketConn) Upstream() any {
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return c.NetPacketConn
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}
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