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snltty
2024-08-03 18:11:05 +08:00
parent 7b88ea2099
commit 48bb4c32c9
1 changed files with 7 additions and 4 deletions
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11
linker.tun/LinkerLinuxTunDevice.cs
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@@ -17,7 +17,6 @@ namespace linker.tun
private string interfaceLinux = string.Empty; private string interfaceLinux = string.Empty;
private FileStream fs = null; private FileStream fs = null;
private SafeFileHandle safeFileHandle; private SafeFileHandle safeFileHandle;
private string iptableLineNumber = string.Empty;
private IPAddress address; private IPAddress address;
private byte prefixLength = 24; private byte prefixLength = 24;
@@ -133,13 +132,17 @@ namespace linker.tun
$"sysctl -w net.ipv4.ip_forward=1", $"sysctl -w net.ipv4.ip_forward=1",
$"iptables -t nat -A POSTROUTING ! -o {Name} -s {network}/{prefixLength} -j MASQUERADE", $"iptables -t nat -A POSTROUTING ! -o {Name} -s {network}/{prefixLength} -j MASQUERADE",
}); });
iptableLineNumber = CommandHelper.Linux(string.Empty, new string[] { $"iptables -t nat -L --line-numbers | grep {network}/{prefixLength} | cut -d' ' -f1" });
} }
public void RemoveNat() public void RemoveNat()
{ {
if (string.IsNullOrWhiteSpace(iptableLineNumber) == false) IPAddress network = NetworkHelper.ToNetworkIp(address, NetworkHelper.MaskValue(prefixLength));
string iptableLineNumbers = CommandHelper.Linux(string.Empty, new string[] { $"iptables -t nat -L --line-numbers | grep {network}/{prefixLength} | cut -d' ' -f1" });
if (string.IsNullOrWhiteSpace(iptableLineNumbers) == false)
{ {
CommandHelper.Linux(string.Empty, new string[] { $"iptables -t nat -D POSTROUTING {iptableLineNumber}" }); string[] commands = iptableLineNumbers.Split(Environment.NewLine)
.Where(c => string.IsNullOrWhiteSpace(c) == false)
.Select(c => $"iptables -t nat -D POSTROUTING {c}").ToArray();
CommandHelper.Linux(string.Empty, commands);
} }
} }