增加基于tap设备的桥接访问模式

handler/payload.go

@@ -0,0 +1,47 @@
+package handler
+
+import "github.com/bjdgyc/anylink/sessdata"
+
+func payloadIn(sess *sessdata.ConnSession, lType sessdata.LType, pType byte, data []byte) bool {
+	payload := &sessdata.Payload{
+		LType: lType,
+		PType: pType,
+		Data:  data,
+	}
+
+	return payloadInData(sess, payload)
+}
+
+func payloadInData(sess *sessdata.ConnSession, payload *sessdata.Payload) bool {
+	closed := false
+
+	select {
+	case sess.PayloadIn <- payload:
+	case <-sess.CloseChan:
+		closed = true
+	}
+
+	return closed
+}
+
+func payloadOut(sess *sessdata.ConnSession, lType sessdata.LType, pType byte, data []byte) bool {
+	payload := &sessdata.Payload{
+		LType: lType,
+		PType: pType,
+		Data:  data,
+	}
+
+	return payloadOutData(sess, payload)
+}
+
+func payloadOutData(sess *sessdata.ConnSession, payload *sessdata.Payload) bool {
+	closed := false
+
+	select {
+	case sess.PayloadOut <- payload:
+	case <-sess.CloseChan:
+		closed = true
+	}
+
+	return closed
+}