Add support cs2+tcp protocol for xiaomi source

pkg/xiaomi/miss/client.go

@@ -33,7 +33,7 @@ func Dial(rawURL string) (*Client, error) {
 
 	switch s := query.Get("vendor"); s {
 	case "cs2":
-		c.conn, err = cs2.Dial(u.Host)
+		c.conn, err = cs2.Dial(u.Host, query.Get("transport"))
 	case "tutk":
 		c.conn, err = tutk.Dial(u.Host, query.Get("uid"))
 	default:
@@ -63,6 +63,7 @@ const (
 )
 
 type Conn interface {
+	Protocol() string
 	ReadCommand() (cmd uint16, data []byte, err error)
 	WriteCommand(cmd uint16, data []byte) error
 	ReadPacket() ([]byte, error)
@@ -77,6 +78,10 @@ type Client struct {
 	key  []byte
 }
 
+func (c *Client) Protocol() string {
+	return c.conn.Protocol()
+}
+
 func (c *Client) RemoteAddr() net.Addr {
 	return c.conn.RemoteAddr()
 }
@@ -89,16 +94,6 @@ func (c *Client) Close() error {
 	return c.conn.Close()
 }
 
-func (c *Client) Protocol() string {
-	switch c.conn.(type) {
-	case *cs2.Conn:
-		return "cs2+udp"
-	case *tutk.Conn:
-		return "tutk+udp"
-	}
-	return ""
-}
-
 const (
 	cmdAuthReq           = 0x100
 	cmdAuthRes           = 0x101