外网访问还在研究怎么写；内网（filegator）在验签情况下已经可以正常访问了

app/src/main/java/com/pkusz/min_vpn_client/services/MINVpnService.java

@@ -65,6 +65,9 @@ public class MINVpnService extends VpnService implements Handler.Callback{
     // 通信intent
     private PendingIntent mConfigureIntent;
 
+    // vpn 外网连接 => 支持访问国外网站
+//    private MINVpnExternalConnection minVpnExternalConnection=null;
+
     @Override
     public void onCreate() {
         // 使用handler显示消息
@@ -152,12 +155,21 @@ public class MINVpnService extends VpnService implements Handler.Callback{
         final String proxyHost = "";
         final int proxyPort = 0;
 
+        // 默认开启内网服务器的连接
         minVpnConnection = new MINVpnInnerConnection(
                 this, mNextConnectionId.getAndIncrement(), server, port, secret,
                 proxyHost, proxyPort, allow, packages, GlobalSetting.isSM4);
-
         // 对vpn connection进行各种监听设置，并启动执行其run函数
         startConnection(minVpnConnection);
+
+        // 根据全局变量，判断 是否开启外网服务器的连接
+        if(GlobalSetting.openFirewall){
+//            final byte[] secretToExtra = SM4HelperForConnection.getRandomSeed(); // 获取随机16位长度密钥，用于对称加密
+//            minVpnExternalConnection = new MINVpnExternalConnection(
+//                    this,mNextConnectionId.getAndIncrement(),
+//                    MINVpnSettingAPI.INSTANCE.getOneExtranetVpnServerInfo(),secretToExtra,
+//                    proxyHost,proxyPort,allow,packages,GlobalSetting.isSM4);
+        }
     }
 
     /**