From 8e3f8fad9de535aaa9294897eb74391b99fa4352 Mon Sep 17 00:00:00 2001
From: snltty <1069410172@qq.com>
Date: Wed, 21 Aug 2024 16:01:35 +0800
Subject: [PATCH] =?UTF-8?q?=E9=9D=9E=E7=BD=91=E5=85=B3=E6=94=AF=E6=8C=81?=
 =?UTF-8?q?=E7=BD=91=E5=AF=B9=E7=BD=91?=
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---
 linker.tun/LinkerLinuxTunDevice.cs | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/linker.tun/LinkerLinuxTunDevice.cs b/linker.tun/LinkerLinuxTunDevice.cs
index cc1e3fa7..fa8976bb 100644
--- a/linker.tun/LinkerLinuxTunDevice.cs
+++ b/linker.tun/LinkerLinuxTunDevice.cs
@@ -138,17 +138,13 @@ namespace linker.tun
             error = string.Empty;
             try
             {
-                string defaultInterface = GetDefaultInterface();
-
-                Console.Write($"defaultInterface-{defaultInterface}-defaultInterface");
-
                 IPAddress network = NetworkHelper.ToNetworkIp(address, NetworkHelper.GetPrefixIP(prefixLength));
                 CommandHelper.Linux(string.Empty, new string[] {
                     $"sysctl -w net.ipv4.ip_forward=1",
 
                     $"iptables -t nat -A POSTROUTING -o {Name} -j MASQUERADE",
-                    $"iptables -A FORWARD -i {defaultInterface} -o {Name} -j ACCEPT",
-                    $"iptables -A FORWARD -i {Name} -o {defaultInterface} -m state --state ESTABLISHED,RELATED -j ACCEPT",
+                    $"iptables -A FORWARD -i {interfaceLinux} -o {Name} -j ACCEPT",
+                    $"iptables -A FORWARD -i {Name} -o {interfaceLinux} -m state --state ESTABLISHED,RELATED -j ACCEPT",
 
                     $"iptables -A FORWARD -i {Name} -j ACCEPT",
                     $"iptables -A FORWARD -o {Name} -m state --state ESTABLISHED,RELATED -j ACCEPT",
@@ -165,12 +161,10 @@ namespace linker.tun
             error = string.Empty;
             try
             {
-                string defaultInterface = GetDefaultInterface();
-
                 CommandHelper.Linux(string.Empty, new string[] {
                     $"iptables -t nat -D POSTROUTING -o {Name} -j MASQUERADE",
-                    $"iptables -D FORWARD -i {defaultInterface} -o {Name} -j ACCEPT",
-                    $"iptables -D FORWARD -i {Name} -o {defaultInterface} -m state --state ESTABLISHED,RELATED -j ACCEPT",
+                    $"iptables -D FORWARD -i {interfaceLinux} -o {Name} -j ACCEPT",
+                    $"iptables -D FORWARD -i {Name} -o {interfaceLinux} -m state --state ESTABLISHED,RELATED -j ACCEPT",
 
                     $"iptables -D FORWARD -i {Name} -j ACCEPT",
                     $"iptables -D FORWARD -o {Name} -m state --state ESTABLISHED,RELATED -j ACCEPT"
@@ -286,7 +280,7 @@ namespace linker.tun
 
         private string GetLinuxInterfaceNum()
         {
-            string output = CommandHelper.Linux(string.Empty, new string[] { "ip route" });
+            string output = CommandHelper.Linux(string.Empty, new string[] { "ip route show default" });
             foreach (var item in output.Split(Environment.NewLine))
             {
                 if (item.StartsWith("default via"))
@@ -296,7 +290,7 @@ namespace linker.tun
                     {
                         if (strs[i] == "dev")
                         {
-                            return strs[i + 1];
+                            return strs[i + 1].Trim();
                         }
                     }
                 }