Feature: support vmess udp

component/vmess/conn.go

@@ -77,7 +77,11 @@ func (vc *Conn) sendRequest() error {
 	// P Sec Reserve Cmd
 	buf.WriteByte(byte(p<<4) | byte(vc.security))
 	buf.WriteByte(0)
-	buf.WriteByte(CommandTCP)
+	if vc.dst.UDP {
+		buf.WriteByte(CommandUDP)
+	} else {
+		buf.WriteByte(CommandTCP)
+	}
 
 	// Port AddrType Addr
 	binary.Write(buf, binary.BigEndian, uint16(vc.dst.Port))

component/vmess/vmess.go

@@ -57,6 +57,7 @@ const (
 
 // DstAddr store destination address
 type DstAddr struct {
+	UDP      bool
 	AddrType byte
 	Addr     []byte
 	Port     uint