mirror of
https://github.com/netchx/netch.git
synced 2026-03-14 17:43:18 +08:00
341 lines
12 KiB
C#
341 lines
12 KiB
C#
using System;
|
||
using System.Collections.Generic;
|
||
using System.Diagnostics;
|
||
using System.Linq;
|
||
using System.Net;
|
||
using System.Net.NetworkInformation;
|
||
using System.Text;
|
||
using System.Threading;
|
||
using System.Threading.Tasks;
|
||
using Netch.Models;
|
||
using Netch.Servers.Socks5;
|
||
using Netch.Utils;
|
||
|
||
namespace Netch.Controllers
|
||
{
|
||
public class TUNTAPController : Guard, IModeController
|
||
{
|
||
private readonly List<string> _directIPs = new();
|
||
|
||
private readonly List<string> _proxyIPs = new();
|
||
/// <summary>
|
||
/// 服务器 IP 地址
|
||
/// </summary>
|
||
private IPAddress? _serverAddresses;
|
||
|
||
/// <summary>
|
||
/// 本地 DNS 服务控制器
|
||
/// </summary>
|
||
public DNSController DNSController = new();
|
||
|
||
protected override IEnumerable<string> StartedKeywords { get; } = new[] {"Running"};
|
||
|
||
protected override IEnumerable<string> StoppedKeywords { get; } = new[] {"failed", "invalid vconfig file"};
|
||
|
||
public override string MainFile { get; protected set; } = "tun2socks.exe";
|
||
|
||
protected override Encoding InstanceOutputEncoding { get; } = Encoding.UTF8;
|
||
|
||
public override string Name { get; } = "tun2socks";
|
||
|
||
public void Start(in Mode mode)
|
||
{
|
||
var server = MainController.Server!;
|
||
// 查询服务器 IP 地址
|
||
_serverAddresses = DNS.Lookup(server.Hostname)!;
|
||
|
||
// 查找出口适配器
|
||
Utils.Utils.SearchOutboundAdapter();
|
||
|
||
// 查找并安装 TAP 适配器
|
||
if (string.IsNullOrEmpty(TUNTAP.GetComponentID()))
|
||
AddTap();
|
||
|
||
SearchTapAdapter();
|
||
|
||
SetupRouteTable(mode);
|
||
|
||
Global.MainForm.StatusText(i18N.TranslateFormat("Starting {0}", Name));
|
||
|
||
string dns;
|
||
if (Global.Settings.TUNTAP.UseCustomDNS)
|
||
{
|
||
if (Global.Settings.TUNTAP.DNS.Any())
|
||
{
|
||
dns = DNS.Join(Global.Settings.TUNTAP.DNS);
|
||
}
|
||
else
|
||
{
|
||
Global.Settings.TUNTAP.DNS.Add("1.1.1.1");
|
||
dns = "1.1.1.1";
|
||
}
|
||
}
|
||
else
|
||
{
|
||
MainController.PortCheck(53, "DNS");
|
||
|
||
DNSController.Start();
|
||
|
||
dns = "127.0.0.1";
|
||
}
|
||
|
||
var argument = new StringBuilder();
|
||
if (server is Socks5 socks5 && !socks5.Auth())
|
||
argument.Append($"-proxyServer {server.AutoResolveHostname()}:{server.Port} ");
|
||
else
|
||
argument.Append($"-proxyServer 127.0.0.1:{Global.Settings.Socks5LocalPort} ");
|
||
|
||
argument.Append(
|
||
$"-tunAddr {Global.Settings.TUNTAP.Address} -tunMask {Global.Settings.TUNTAP.Netmask} -tunGw {Global.Settings.TUNTAP.Gateway} -tunDns {dns} -tunName \"{TUNTAP.GetName(Global.TUNTAP.ComponentID)}\" ");
|
||
|
||
if (Global.Settings.TUNTAP.UseFakeDNS && Global.Flags.SupportFakeDns)
|
||
argument.Append("-fakeDns ");
|
||
|
||
StartInstanceAuto(argument.ToString(), ProcessPriorityClass.RealTime);
|
||
}
|
||
|
||
/// <summary>
|
||
/// TUN/TAP停止
|
||
/// </summary>
|
||
public override void Stop()
|
||
{
|
||
var tasks = new[]
|
||
{
|
||
Task.Run(StopInstance),
|
||
Task.Run(ClearRouteTable),
|
||
Task.Run(DNSController.Stop)
|
||
};
|
||
|
||
Task.WaitAll(tasks);
|
||
}
|
||
|
||
/// <summary>
|
||
/// 设置绕行规则
|
||
/// </summary>
|
||
/// <returns>是否设置成功</returns>
|
||
private void SetupRouteTable(Mode mode)
|
||
{
|
||
Global.MainForm.StatusText(i18N.Translate("SetupBypass"));
|
||
Logging.Info("设置路由规则");
|
||
|
||
#region Rule IPs
|
||
|
||
switch (mode.Type)
|
||
{
|
||
case 1:
|
||
// 代理规则
|
||
Logging.Info("代理 → 规则 IP");
|
||
RouteAction(Action.Create, mode.FullRule, RouteType.TUNTAP);
|
||
|
||
//处理 NAT 类型检测，由于协议的原因，无法仅通过域名确定需要代理的 IP，自己记录解析了返回的 IP，仅支持默认检测服务器
|
||
if (Global.Settings.STUN_Server == "stun.stunprotocol.org")
|
||
try
|
||
{
|
||
Logging.Info("代理 → STUN 服务器 IP");
|
||
RouteAction(Action.Create,
|
||
new[]
|
||
{
|
||
Dns.GetHostAddresses(Global.Settings.STUN_Server)[0],
|
||
Dns.GetHostAddresses("stunresponse.coldthunder11.com")[0]
|
||
}.Select(ip => $"{ip}/32"),
|
||
RouteType.TUNTAP);
|
||
}
|
||
catch
|
||
{
|
||
Logging.Info("NAT 类型测试域名解析失败，将不会被添加到代理列表");
|
||
}
|
||
|
||
if (Global.Settings.TUNTAP.ProxyDNS)
|
||
{
|
||
Logging.Info("代理 → 自定义 DNS");
|
||
if (Global.Settings.TUNTAP.UseCustomDNS)
|
||
RouteAction(Action.Create, Global.Settings.TUNTAP.DNS.Select(ip => $"{ip}/32"), RouteType.TUNTAP);
|
||
else
|
||
RouteAction(Action.Create,
|
||
new[] {"1.1.1.1", "8.8.8.8", "9.9.9.9", "185.222.222.222"}.Select(ip => $"{ip}/32"),
|
||
RouteType.TUNTAP);
|
||
}
|
||
|
||
break;
|
||
case 2:
|
||
// 绕过规则
|
||
|
||
// 将 TUN/TAP 网卡权重放到最高
|
||
Process.Start(new ProcessStartInfo
|
||
{
|
||
FileName = "netsh",
|
||
Arguments = $"interface ip set interface {Global.TUNTAP.Index} metric=0",
|
||
WindowStyle = ProcessWindowStyle.Hidden,
|
||
UseShellExecute = true,
|
||
CreateNoWindow = true
|
||
});
|
||
|
||
Logging.Info("绕行 → 规则 IP");
|
||
RouteAction(Action.Create, mode.FullRule, RouteType.Outbound);
|
||
break;
|
||
}
|
||
|
||
#endregion
|
||
|
||
Logging.Info("绕行 → 服务器 IP");
|
||
if (!IPAddress.IsLoopback(_serverAddresses!))
|
||
RouteAction(Action.Create, $"{_serverAddresses}/32", RouteType.Outbound);
|
||
|
||
Logging.Info("绕行 → 全局绕过 IP");
|
||
RouteAction(Action.Create, Global.Settings.BypassIPs, RouteType.Outbound);
|
||
|
||
if (mode.Type == 2)
|
||
{
|
||
// 绕过规则
|
||
Logging.Info("代理 → 全局");
|
||
RouteAction(Action.Create, "0.0.0.0/0", RouteType.TUNTAP);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 清除绕行规则
|
||
/// </summary>
|
||
private bool ClearRouteTable()
|
||
{
|
||
RouteAction(Action.Delete, _directIPs, RouteType.Outbound);
|
||
RouteAction(Action.Delete, _proxyIPs, RouteType.TUNTAP);
|
||
_directIPs.Clear();
|
||
_proxyIPs.Clear();
|
||
return true;
|
||
}
|
||
|
||
public bool TestFakeDNS()
|
||
{
|
||
try
|
||
{
|
||
InitInstance("-h");
|
||
Instance!.Start();
|
||
return Instance.StandardError.ReadToEnd().Contains("-fakeDns");
|
||
}
|
||
catch
|
||
{
|
||
return false;
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 搜索出口和TUNTAP适配器
|
||
/// </summary>
|
||
public static void SearchTapAdapter()
|
||
{
|
||
Global.TUNTAP.Adapter = null;
|
||
Global.TUNTAP.Index = -1;
|
||
Global.TUNTAP.ComponentID = TUNTAP.GetComponentID();
|
||
|
||
// 搜索 TUN/TAP 适配器的索引
|
||
if (string.IsNullOrEmpty(Global.TUNTAP.ComponentID))
|
||
{
|
||
const string s = "TAP 适配器未安装";
|
||
Logging.Info(s);
|
||
throw new Exception(s);
|
||
}
|
||
|
||
// 根据 ComponentID 寻找 Tap适配器
|
||
var adapter = NetworkInterface.GetAllNetworkInterfaces().First(_ => _.Id == Global.TUNTAP.ComponentID);
|
||
Global.TUNTAP.Adapter = adapter;
|
||
Global.TUNTAP.Index = adapter.GetIPProperties().GetIPv4Properties().Index;
|
||
Logging.Info($"TAP 适配器：{adapter.Name} {adapter.Id} {adapter.Description}, index: {Global.TUNTAP.Index}");
|
||
}
|
||
|
||
private static bool AddTap()
|
||
{
|
||
TUNTAP.addtap();
|
||
// 给点时间，不然立马安装完毕就查找适配器可能会导致找不到适配器ID
|
||
Thread.Sleep(1000);
|
||
if (string.IsNullOrEmpty(Global.TUNTAP.ComponentID = TUNTAP.GetComponentID()))
|
||
{
|
||
const string s = "TAP 驱动安装失败，找不到 ComponentID 注册表项";
|
||
Logging.Error(s);
|
||
throw new Exception(s);
|
||
}
|
||
|
||
return true;
|
||
}
|
||
|
||
private void RouteAction(Action action, in IEnumerable<string> ipNetworks, RouteType routeType, int metric = 0)
|
||
{
|
||
foreach (var address in ipNetworks)
|
||
RouteAction(action, address, routeType, metric);
|
||
}
|
||
|
||
private bool RouteAction(Action action, in string ipNetwork, RouteType routeType, int metric = 0)
|
||
{
|
||
string gateway;
|
||
int index;
|
||
switch (routeType)
|
||
{
|
||
case RouteType.Outbound:
|
||
gateway = Global.Outbound.Gateway!.ToString();
|
||
index = Global.Outbound.Index;
|
||
break;
|
||
case RouteType.TUNTAP:
|
||
gateway = Global.Settings.TUNTAP.Gateway;
|
||
index = Global.TUNTAP.Index;
|
||
break;
|
||
default:
|
||
throw new ArgumentOutOfRangeException(nameof(routeType), routeType, null);
|
||
}
|
||
|
||
string network;
|
||
ushort cidr;
|
||
try
|
||
{
|
||
var s = ipNetwork.Split('/');
|
||
network = s[0];
|
||
cidr = ushort.Parse(s[1]);
|
||
}
|
||
catch
|
||
{
|
||
Logging.Warning($"Failed to parse rule {ipNetwork}");
|
||
return false;
|
||
}
|
||
|
||
bool result;
|
||
switch (action)
|
||
{
|
||
case Action.Create:
|
||
{
|
||
result = NativeMethods.CreateRoute(network, cidr, gateway, index, metric);
|
||
switch (routeType)
|
||
{
|
||
case RouteType.Outbound:
|
||
_directIPs.Add(ipNetwork);
|
||
break;
|
||
case RouteType.TUNTAP:
|
||
_proxyIPs.Add(ipNetwork);
|
||
break;
|
||
}
|
||
|
||
break;
|
||
}
|
||
case Action.Delete:
|
||
result = NativeMethods.DeleteRoute(network, cidr, gateway, index, metric);
|
||
break;
|
||
default:
|
||
throw new ArgumentOutOfRangeException(nameof(action), action, null);
|
||
}
|
||
|
||
if (!result)
|
||
Logging.Warning($"Failed to {action} Route on {routeType} Adapter: {ipNetwork} metric {metric}");
|
||
|
||
return result;
|
||
}
|
||
|
||
private enum RouteType
|
||
{
|
||
Outbound,
|
||
TUNTAP
|
||
}
|
||
|
||
private enum Action
|
||
{
|
||
Create,
|
||
Delete
|
||
}
|
||
}
|
||
} |