mirror of
https://github.com/netchx/netch.git
synced 2026-03-16 17:53:17 +08:00
378 lines
13 KiB
C#
378 lines
13 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Net.NetworkInformation;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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using Netch.Models;
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using Netch.Utils;
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namespace Netch.Controllers
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{
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public class TUNTAPController : Guard, IModeController
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{
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public bool TestNatRequired { get; } = true;
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// ByPassLan IP
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private readonly List<string> _bypassLanIPs = new List<string>
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{"10.0.0.0/8", "172.16.0.0/16", "192.168.0.0/16"};
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private Mode _savedMode = new Mode();
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private Server _savedServer = new Server();
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/// <summary>
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/// 服务器 IP 地址
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/// </summary>
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private IPAddress _serverAddresses;
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/// <summary>
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/// 本地 DNS 服务控制器
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/// </summary>
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public DNSController DNSController = new DNSController();
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public TUNTAPController()
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{
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StartedKeywords.Add("Running");
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StoppedKeywords.AddRange(new[] {"failed", "invalid vconfig file"});
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}
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public override string Name { get; protected set; } = "tun2socks";
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public override string MainFile { get; protected set; } = "tun2socks.exe";
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public bool Start(Server s, Mode mode)
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{
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_savedMode = mode;
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_savedServer = s;
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// 查询服务器 IP 地址
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_serverAddresses = DNS.Lookup(_savedServer.Hostname);
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// 查找出口适配器
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if (!Utils.Utils.SearchOutboundAdapter())
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{
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return false;
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}
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// 查找并安装 TAP 适配器
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if (!SearchTapAdapter() && !AddTap())
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{
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Logging.Error("Tap 适配器安装失败");
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return false;
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}
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SetupRouteTable();
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string dns;
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if (Global.Settings.TUNTAP.UseCustomDNS)
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{
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if (Global.Settings.TUNTAP.DNS.Any())
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{
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dns = Global.Settings.TUNTAP.DNS.Aggregate((current, ip) => $"{current},{ip}");
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}
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else
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{
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Global.Settings.TUNTAP.DNS.Add("1.1.1.1");
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dns = "1.1.1.1";
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}
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}
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else
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{
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var _ = DNSController.Start();
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dns = "127.0.0.1";
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}
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var argument = new StringBuilder();
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if (s.IsSocks5())
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argument.Append($"-proxyServer {_serverAddresses}:{s.Port} ");
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else
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argument.Append($"-proxyServer 127.0.0.1:{Global.Settings.Socks5LocalPort} ");
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argument.Append(
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$"-tunAddr {Global.Settings.TUNTAP.Address} -tunMask {Global.Settings.TUNTAP.Netmask} -tunGw {Global.Settings.TUNTAP.Gateway} -tunDns {dns} -tunName \"{TUNTAP.GetName(Global.TUNTAP.ComponentID)}\" ");
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if (Global.Settings.TUNTAP.UseFakeDNS && Global.Flags.SupportFakeDns)
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argument.Append("-fakeDns ");
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return StartInstanceAuto(argument.ToString(), ProcessPriorityClass.RealTime);
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}
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/// <summary>
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/// TUN/TAP停止
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/// </summary>
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public override void Stop()
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{
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var tasks = new[]
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{
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Task.Factory.StartNew(StopInstance),
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Task.Factory.StartNew(ClearRouteTable),
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Task.Factory.StartNew(DNSController.Stop)
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};
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Task.WaitAll(tasks);
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}
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private readonly List<IPNetwork> _directIPs = new List<IPNetwork>();
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private readonly List<IPNetwork> _proxyIPs = new List<IPNetwork>();
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/// <summary>
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/// 设置绕行规则
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/// </summary>
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/// <returns>是否设置成功</returns>
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private void SetupRouteTable()
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{
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Global.MainForm.StatusText(i18N.Translate("SetupBypass"));
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Logging.Info("绕行 → 全局绕过 IP");
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_directIPs.AddRange(Global.Settings.BypassIPs.Select(IPNetwork.Parse));
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Logging.Info("绕行 → 服务器 IP");
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if (!IPAddress.IsLoopback(_serverAddresses))
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_directIPs.Add(IPNetwork.Parse(_serverAddresses.ToString(), 32));
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Logging.Info("绕行 → 局域网 IP");
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_directIPs.AddRange(_bypassLanIPs.Select(IPNetwork.Parse));
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switch (_savedMode.Type)
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{
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case 1:
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// 代理规则
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Logging.Info("代理 → 规则 IP");
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_proxyIPs.AddRange(_savedMode.Rule.Select(IPNetwork.Parse));
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//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
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if (Global.Settings.STUN_Server == "stun.stunprotocol.org")
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try
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{
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Logging.Info("代理 → STUN 服务器 IP");
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_proxyIPs.AddRange(new[]
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{
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Dns.GetHostAddresses(Global.Settings.STUN_Server)[0],
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Dns.GetHostAddresses("stunresponse.coldthunder11.com")[0]
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}.Select(ip => IPNetwork.Parse(ip.ToString(), 32)));
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}
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catch
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{
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Logging.Info("NAT 类型测试域名解析失败，将不会被添加到代理列表");
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}
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if (Global.Settings.TUNTAP.ProxyDNS)
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{
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Logging.Info("代理 → 自定义 DNS");
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if (Global.Settings.TUNTAP.UseCustomDNS)
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{
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_proxyIPs.AddRange(Global.Settings.TUNTAP.DNS.Select(ip => IPNetwork.Parse(ip, 32)));
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}
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else
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{
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_proxyIPs.AddRange(new[] {"1.1.1.1", "8.8.8.8", "9.9.9.9", "185.222.222.222"}.Select(ip => IPNetwork.Parse(ip, 32)));
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}
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}
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break;
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case 2:
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// 绕过规则
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// 将 TUN/TAP 网卡权重放到最高
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Process.Start(new ProcessStartInfo
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{
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FileName = "netsh",
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Arguments = $"interface ip set interface {Global.TUNTAP.Index} metric=0",
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WindowStyle = ProcessWindowStyle.Hidden,
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UseShellExecute = true,
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CreateNoWindow = true
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}
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);
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Logging.Info("绕行 → 规则 IP");
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_directIPs.AddRange(_savedMode.Rule.Select(IPNetwork.Parse));
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Logging.Info("代理 → 全局");
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RouteAction(Action.Create, IPNetwork.Parse("0.0.0.0", 0), RouteType.TUNTAP);
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Logging.Info("移除 → 出口网卡路由");
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RouteAction(Action.Delete, IPNetwork.Parse("0.0.0.0", 0), RouteType.Gateway);
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break;
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}
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Logging.Info("设置路由规则");
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RouteAction(Action.Create, _directIPs, RouteType.Gateway);
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RouteAction(Action.Create, _proxyIPs, RouteType.TUNTAP);
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}
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/// <summary>
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/// 清除绕行规则
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/// </summary>
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private bool ClearRouteTable()
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{
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switch (_savedMode.Type)
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{
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case 1:
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break;
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case 2:
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RouteAction(Action.Delete, IPNetwork.Parse("0.0.0.0", 0), RouteType.TUNTAP);
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RouteAction(Action.Create, IPNetwork.Parse("0.0.0.0", 0), RouteType.Gateway);
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break;
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}
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RouteAction(Action.Delete, _directIPs, RouteType.Gateway);
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RouteAction(Action.Delete, _proxyIPs, RouteType.TUNTAP);
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_directIPs.Clear();
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_proxyIPs.Clear();
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return true;
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}
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public bool TestFakeDNS()
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{
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var exited = false;
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var helpStr = new StringBuilder();
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try
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{
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void OnOutputDataReceived(object sender, DataReceivedEventArgs e)
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{
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if (e.Data == null)
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{
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exited = true;
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return;
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}
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helpStr.Append(e.Data);
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}
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InitInstance("-h");
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// Instance.OutputDataReceived += OnOutputDataReceived;
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Instance.ErrorDataReceived += OnOutputDataReceived;
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Instance.Start();
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Instance.BeginOutputReadLine();
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Instance.BeginErrorReadLine();
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while (!exited)
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{
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Thread.Sleep(200);
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}
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return helpStr.ToString().Contains("-fakeDns");
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}
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catch
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{
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return false;
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}
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}
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/// <summary>
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/// 搜索出口和TUNTAP适配器
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/// </summary>
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public static bool SearchTapAdapter()
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{
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Global.TUNTAP.Adapter = null;
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Global.TUNTAP.Index = -1;
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Global.TUNTAP.ComponentID = TUNTAP.GetComponentID();
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// 搜索 TUN/TAP 适配器的索引
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if (string.IsNullOrEmpty(Global.TUNTAP.ComponentID))
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{
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Logging.Info("TAP 适配器未安装");
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return false;
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}
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// 根据 ComponentID 寻找 Tap适配器
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try
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{
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var adapter = NetworkInterface.GetAllNetworkInterfaces().First(_ => _.Id == Global.TUNTAP.ComponentID);
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Global.TUNTAP.Adapter = adapter;
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Global.TUNTAP.Index = adapter.GetIPProperties().GetIPv4Properties().Index;
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Logging.Info(
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$"TAP 适配器：{adapter.Name} {adapter.Id} {adapter.Description}, index: {Global.TUNTAP.Index}");
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return true;
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}
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catch (Exception e)
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{
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var msg = e switch
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{
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InvalidOperationException _ => $"找不到标识符为 {Global.TUNTAP.ComponentID} 的 TAP 适配器: {e.Message}",
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NetworkInformationException _ => $"获取 Tap 适配器信息错误: {e.Message}",
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_ => $"Tap 适配器其他异常: {e}"
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};
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Logging.Error(msg);
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return false;
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}
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}
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private static bool AddTap()
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{
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TUNTAP.addtap();
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// 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
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Thread.Sleep(1000);
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if (string.IsNullOrEmpty(Global.TUNTAP.ComponentID = TUNTAP.GetComponentID()))
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{
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Logging.Error("找不到 TAP 适配器，驱动可能安装失败");
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return false;
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}
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return true;
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}
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private enum RouteType
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{
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Gateway,
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TUNTAP
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}
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private enum Action
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{
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Create,
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Delete
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}
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private static void RouteAction(Action action, IEnumerable<IPNetwork> ipNetworks, RouteType routeType,
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int metric = 0)
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{
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foreach (var address in ipNetworks)
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{
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RouteAction(action, address, routeType, metric);
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}
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}
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private static bool RouteAction(Action action, IPNetwork ipNetwork, RouteType routeType, int metric = 0)
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{
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string gateway;
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int index;
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switch (routeType)
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{
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case RouteType.Gateway:
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gateway = Global.Outbound.Gateway.ToString();
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index = Global.Outbound.Index;
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break;
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case RouteType.TUNTAP:
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gateway = Global.Settings.TUNTAP.Gateway;
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index = Global.TUNTAP.Index;
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break;
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default:
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throw new ArgumentOutOfRangeException(nameof(routeType), routeType, null);
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}
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var result = action switch
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{
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Action.Create => NativeMethods.CreateRoute(ipNetwork.Network.ToString(), ipNetwork.Cidr, gateway, index,
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metric),
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Action.Delete => NativeMethods.DeleteRoute(ipNetwork.Network.ToString(), ipNetwork.Cidr, gateway, index,
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metric),
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_ => throw new ArgumentOutOfRangeException(nameof(action), action, null)
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};
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if (!result)
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{
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Logging.Warning($"Failed {action} Route on {routeType} Adapter: {ipNetwork} metric {metric}");
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}
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return result;
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}
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}
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} |