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support udp in relay if last proxy could udp-over-tcp

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This commit is contained in:
wwqgtxx
2022-04-30 11:36:42 +08:00
parent 9dbe20f2c5
commit 861205dbbe
7 changed files with 147 additions and 11 deletions
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11
adapter/outbound/snell.go
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@ -95,6 +95,12 @@ func (s *Snell) ListenPacketContext(ctx context.Context, metadata *C.Metadata, o
tcpKeepAlive(c)
c = streamConn(c, streamOption{s.psk, s.version, s.addr, s.obfsOption})
return s.ListenPacketOnStreamConn(c, metadata)
}
// ListenPacketOnStreamConn implements C.ProxyAdapter
func (s *Snell) ListenPacketOnStreamConn(c net.Conn, metadata *C.Metadata) (_ C.PacketConn, err error) {
err = snell.WriteUDPHeader(c, s.version)
if err != nil {
return nil, err
@ -104,6 +110,11 @@ func (s *Snell) ListenPacketContext(ctx context.Context, metadata *C.Metadata, o
return newPacketConn(pc, s), nil
}
// SupportUOT implements C.ProxyAdapter
func (s *Snell) SupportUOT() bool {
return true
}
func NewSnell(option SnellOption) (*Snell, error) {
addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
psk := []byte(option.Psk)