Update readme.md

device/receive.go

@@ -7,6 +7,7 @@ package device
 
 import (
 	"bytes"
+	"encoding/base64"
 	"encoding/binary"
 	"errors"
 	"fmt"
@@ -470,7 +471,12 @@ func (peer *Peer) RoutineSequentialReceiver() {
 		src_nodeID = EgHeader.GetSrc()
 		dst_nodeID = EgHeader.GetDst()
 		packet_type = elem.Type
-
+		if !packet_type.IsValid_EgType() {
+			if device.LogLevel.LogTransit {
+				fmt.Printf("Transit: Invalid packet usage:%v ttl:%v, content %v PL:%v S:%v D:%v From:%v IP:%v\n", elem.Type.ToString(), elem.TTL, base64.StdEncoding.EncodeToString([]byte(elem.packet)), len(elem.packet), src_nodeID.ToString(), dst_nodeID.ToString(), peer.ID.ToString(), peer.endpoint.DstToString())
+			}
+			goto skip
+		}
 		if device.IsSuperNode {
 			if packet_type.IsControl_Edge2Super() {
 				should_process = true
@@ -574,6 +580,10 @@ func (peer *Peer) RoutineSequentialReceiver() {
 							fmt.Printf("Transit: Transfer From:%v Me:%v To:%v S:%v D:%v\n", peer.ID, device.ID, peer_out.ID, src_nodeID.ToString(), dst_nodeID.ToString())
 						}
 						go device.SendPacket(peer_out, elem.Type, l2ttl, elem.packet, MessageTransportOffsetContent)
+					} else {
+						if device.LogLevel.LogTransit {
+							fmt.Printf("Transit: No route to %v,usage:%v ttl:%v, content %v PL:%v S:%v D:%v From:%v IP:%v\n", dst_nodeID.ToString(), elem.Type.ToString(), elem.TTL, base64.StdEncoding.EncodeToString([]byte(elem.packet)), len(elem.packet), src_nodeID.ToString(), dst_nodeID.ToString(), peer.ID.ToString(), peer.endpoint.DstToString())
+						}
 					}
 				}
 			}

example_config/super_mode/README.md

@@ -9,7 +9,7 @@ The SuperNode runs [Floyd-Warshall Algorithm](https://en.wikipedia.org/wiki/Floy
 
 ## Quick start
 
-首先按需求修改`gensuper.yaml`
+Edit the file `gensuper.yaml` based on your requirement first.
 
 ```yaml
 Config output dir: /tmp/eg_gen

path/header.go

@@ -7,7 +7,7 @@ import (
 	"github.com/KusakabeSi/EtherGuard-VPN/mtypes"
 )
 
-const EgHeaderLen =4
+const EgHeaderLen = 4
 
 type EgHeader struct {
 	buf []byte
@@ -32,6 +32,42 @@ const (
 	BroadcastPeer
 )
 
+func (v Usage) IsValid_EgType() bool {
+	if v >= NormalPacket && v <= BroadcastPeer {
+		return true
+	}
+	return false
+}
+
+func (v Usage) ToString() string {
+	switch v {
+	case MessageInitiationType:
+		return "MessageInitiationType"
+	case MessageResponseType:
+		return "MessageResponseType"
+	case MessageCookieReplyType:
+		return "MessageCookieReplyType"
+	case MessageTransportType:
+		return "MessageTransportType"
+	case NormalPacket:
+		return "NormalPacket"
+	case Register:
+		return "Register"
+	case ServerUpdate:
+		return "ServerUpdate"
+	case PingPacket:
+		return "PingPacket"
+	case PongPacket:
+		return "PongPacket"
+	case QueryPeer:
+		return "QueryPeer"
+	case BroadcastPeer:
+		return "BroadcastPeer"
+	default:
+		return "Unknown:" + string(uint8(v))
+	}
+}
+
 func (v Usage) IsNormal() bool {
 	return v == NormalPacket
 }