/// <summary>
/// The is running.
/// </summary>
/// <returns>
/// The <see cref="bool"/>.
/// </returns>
public static bool IsRunning()
{
if (!Tun2Socks.IsTun2SocksRunning() || !Dns2Socks.IsDns2SocksRunning())
{
Tun2Socks.StopTun2Socks();
Tun2Socks.CleanAllTun2Socks();
Dns2Socks.StopDns2Socks();
Dns2Socks.CleanAllDns2Socks();
return(false);
}
return(true);
}
/// <summary>
/// The stop tunnel.
/// </summary>
public static void StopTunnel()
{
Tun2Socks.StopTun2Socks();
Tun2Socks.CleanAllTun2Socks();
Dns2Socks.StopDns2Socks();
Dns2Socks.CleanAllDns2Socks();
foreach (
IP4RouteTable ip4 in
IP4RouteTable.GetCurrentTable()
.Where(
ip4 =>
ExceptionIPs.Any(
ip =>
ip4.Destination != null && ip4.NextHop != null && ip4.Mask != null &&
ip4.Destination == ip.ToString() && ip4.Mask == "255.255.255.255" &&
ip4.NextHop != "0.0.0.0")))
{
ip4.RemoveRouteRule();
}
}
/// <summary>
/// The start tunnel.
/// </summary>
/// <returns>
/// The <see cref="bool"/>.
/// </returns>
public static bool StartTunnel()
{
if (!CommonLibrary.Common.IsValidIpSubnet(IpSubnet))
{
return(false);
}
AdapterAddressRange = CommonLibrary.Common.MergeIpIntoIpSubnet(
AdapterAddressRange,
IpSubnet,
IPAddress.Parse("10.0.0.1"));
IPAddress addressGateWay = CommonLibrary.Common.MergeIpIntoIpSubnet(
AdapterAddressRange,
IpSubnet,
IPAddress.Parse("10.0.0.2"));
NetworkAdapter net = TapAdapter.InstallAnAdapter(TunnelName);
if (net == null)
{
return(false);
}
if (
!Tun2Socks.StartTun2Socks(
net,
AdapterAddressRange,
IpSubnet,
addressGateWay,
SocksProxyEndPoint))
{
return(false);
}
NetworkAdapterConfiguration netconfig = net.GetNetworkConfiguration();
if (netconfig == null)
{
return(false);
}
int timeout = 30;
timeout = timeout / 3;
string dnsString = string.Empty;
if (AutoDnsResolving && AutoDnsResolvingAddress != null)
{
Dns2Socks.StartDns2Socks(AutoDnsResolvingAddress, SocksProxyEndPoint);
dnsString = SocksProxyEndPoint.Address.ToString();
}
else if (DnsResolvingAddress != null && DnsResolvingAddress2 != null)
{
dnsString = DnsResolvingAddress + "," + DnsResolvingAddress2;
}
else if (DnsResolvingAddress != null)
{
dnsString = DnsResolvingAddress.ToString();
}
else if (DnsResolvingAddress2 != null)
{
dnsString = DnsResolvingAddress2.ToString();
}
while (true)
{
if (netconfig.SetIpAddresses(AdapterAddressRange.ToString(), IpSubnet.ToString()) &&
netconfig.SetDnsSearchOrder(dnsString))
{
break;
}
if (timeout == 0)
{
return(false);
}
timeout--;
Thread.Sleep(3000);
}
IP4RouteTable.AddChangeRouteRule(
IPAddress.Parse("0.0.0.0"),
addressGateWay,
2,
IPAddress.Parse("0.0.0.0"),
(int)net.InterfaceIndex);
int lowestMetric = 1000;
IP4RouteTable me = null;
List <IP4RouteTable> internetRules = new List <IP4RouteTable>();
foreach (IP4RouteTable r in IP4RouteTable.GetCurrentTable().ToArray())
{
if (r.Destination == "0.0.0.0")
{
if (r.InterfaceIndex == net.InterfaceIndex)
{
me = r;
}
else
{
internetRules.Add(r);
if (lowestMetric > r.Metric1)
{
lowestMetric = r.Metric1;
}
}
}
}
if (me == null)
{
return(false);
}
foreach (IP4RouteTable ip4 in
IP4RouteTable.GetCurrentTable()
.Where(
ip4 =>
ExceptionIPs.Any(
ip =>
ip4.Destination != null && ip4.NextHop != null && ip4.Mask != null &&
ip4.Destination == ip.ToString() && ip4.Mask == "255.255.255.255" &&
ip4.NextHop != "0.0.0.0")))
{
ip4.RemoveRouteRule();
}
int des = 0;
if (me.Metric1 >= lowestMetric)
{
des = (me.Metric1 - lowestMetric) + 1;
}
foreach (IP4RouteTable r in internetRules)
{
if (des > 0)
{
r.SetMetric1(r.Metric1 + des);
}
if (string.IsNullOrEmpty(r.NextHop))
{
continue;
}
foreach (IPAddress ip in ExceptionIPs)
{
// if (IP4RouteTable.GetBestInterfaceIndexForIP(ip) == net.InterfaceIndex)
IP4RouteTable.AddChangeRouteRule(ip, IPAddress.Parse(r.NextHop), 1, null, r.InterfaceIndex);
}
}
FlashDnsCache();
return(true);
}
/// <summary>
/// Clean all tunnel processes
/// </summary>
/// <returns>
/// The <see cref="bool"/>.
/// </returns>
public static void CleanAllTunnelProcesses()
{
Tun2Socks.CleanAllTun2Socks();
Dns2Socks.CleanAllDns2Socks();
}
