public TransparentProxyServer(IPEndPoint localEP, IProxyServerConnectionManager connectionManager = null, TransparentProxyServerMethod method = TransparentProxyServerMethod.DNAT, int backlog = 10)
{
if (Environment.OSVersion.Platform != PlatformID.Unix)
{
throw new NotSupportedException("Only Unix/Linux is supported.");
}
if ((method == TransparentProxyServerMethod.DNAT) && (localEP.AddressFamily != AddressFamily.InterNetwork))
{
throw new NotSupportedException("Only IPv4 is supported with DNAT.");
}
_listener = new Socket(localEP.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
if (method == TransparentProxyServerMethod.TPROXY)
{
_listener.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, 1);
_listener.SetRawSocketOption(IPPROTO_IP, IP_TRANSPARENT, new byte[] { 1 });
}
_listener.Bind(localEP);
_listener.Listen(backlog);
_listener.NoDelay = true;
_localEP = (IPEndPoint)_listener.LocalEndPoint;
_connectionManager = connectionManager;
_method = method;
if (_connectionManager == null)
{
_connectionManager = new DefaultProxyServerConnectionManager();
}
//accept requests async
int tasks = Math.Max(1, Environment.ProcessorCount);
for (int i = 0; i < tasks; i++)
{
_ = Task.Factory.StartNew(AcceptRequestAsync, CancellationToken.None, TaskCreationOptions.DenyChildAttach, TaskScheduler.Current);
}
}
public TransparentProxyServer(IProxyServerConnectionManager connectionManager = null, TransparentProxyServerMethod method = TransparentProxyServerMethod.DNAT, int backlog = 10)
: this(new IPEndPoint(IPAddress.Any, 8081), connectionManager, method, backlog)
{
}
public ProxyServerSession(Socket localSocket, IProxyServerConnectionManager connectionManager, TransparentProxyServerMethod method)
{
_localSocket = localSocket;
_connectionManager = connectionManager;
_method = method;
}
