mix类型的简单补充(微小进度)

examples/ss.client.toml

@@ -9,4 +9,4 @@ protocol = "shadowsocks"
 uuid = "method:AES-128-GCM\npass:iloveverysimple"    # chacha20-ietf-poly1305,AES-128-GCM, AES-256-GCM, 大小写均可；在macm1 上测试 应该是 aes 更快
 host = "127.0.0.1"
 port = 4434
-#network = "udp"    # 我们默认依然是在tcp上传输 ss协议的。如果是在udp上传输的话，因为暴力发包，是很容易丢包的
+#network = "mix"

examples/ss.server.toml

@@ -3,4 +3,4 @@ protocol = "shadowsocks"
 uuid = "method:AES-128-GCM\npass:iloveverysimple"
 host = "127.0.0.1"
 port = 4434
-#network = "udp"
+#network = "mix"

proxy/shadowsocks/server.go

@@ -56,6 +56,10 @@ func (*Server) Name() string {
 	return Name
 }
 
+func (*Server) MultiTransportLayer() bool {
+	return true
+}
+
 func (s *Server) Handshake(underlay net.Conn) (result net.Conn, msgConn netLayer.MsgConn, targetAddr netLayer.Addr, returnErr error) {
 	result = s.cipher.StreamConn(underlay)
 	readbs := utils.GetBytes(utils.MTU)