Add v2ray stats api

experimental/trackerconn/conn.go

@@ -57,6 +57,10 @@ func (c *Conn) WriteBuffer(buffer *buf.Buffer) error {
 	return nil
 }
 
+func (c *Conn) Upstream() any {
+	return c.ExtendedConn
+}
+
 type DirectConn Conn
 
 func (c *DirectConn) WriteTo(w io.Writer) (n int64, err error) {

experimental/trackerconn/packet_conn.go

@@ -35,3 +35,7 @@ func (c *PacketConn) WritePacket(buffer *buf.Buffer, destination M.Socksaddr) er
 	c.writeCounter.Add(dataLen)
 	return nil
 }
+
+func (c *PacketConn) Upstream() any {
+	return c.PacketConn
+}