Rough outline of tunnel types

tunnel/socket.go

@@ -0,0 +1,25 @@
+package tunnel
+
+import "github.com/micro/go-micro/transport"
+
+type tunSocket struct{}
+
+func (s *tunSocket) Recv(m *transport.Message) error {
+	return nil
+}
+
+func (s *tunSocket) Send(m *transport.Message) error {
+	return nil
+}
+
+func (s *tunSocket) Close() error {
+	return nil
+}
+
+func (s *tunSocket) Local() string {
+	return ""
+}
+
+func (s *tunSocket) Remote() string {
+	return ""
+}