Add comments and session

network/tunnel/socket.go

@@ -48,6 +48,10 @@ func (s *socket) Id() string {
 	return s.id
 }
 
+func (s *socket) Session() string {
+	return s.session
+}
+
 func (s *socket) Send(m *transport.Message) error {
 	select {
 	case <-s.closed:

network/tunnel/tunnel.go

@@ -20,15 +20,19 @@ type Tunnel interface {
 	Listen(addr string) (Listener, error)
 }
 
+// The listener provides similar constructs to the transport.Listener
 type Listener interface {
 	Addr() string
 	Close() error
 	Accept() (Conn, error)
 }
 
+// Conn is a connection dialed or accepted which includes the tunnel id and session
 type Conn interface {
 	// Specifies the tunnel id
 	Id() string
+	// The session
+	Session() string
 	// a transport socket
 	transport.Socket
 }