/// <summary>
/// Starts a pass thru thread.
/// </summary>
/// <param name="filter">The filter.</param>
/// <param name="waitHandles">The wait handles.</param>
/// <param name="networkAdapters">The network adapters.</param>
/// <param name="waitHandlesManualResetEvents">The wait handles manual reset events.</param>
private static void PassThruThread(NdisApi filter, WaitHandle[] waitHandles, IReadOnlyList <NetworkAdapter> networkAdapters, IReadOnlyList <ManualResetEvent> waitHandlesManualResetEvents)
{
var ndisApiHelper = new NdisApiHelper();
var ethPackets = ndisApiHelper.CreateEthMRequest();
while (true)
{
var handle = WaitHandle.WaitAny(waitHandles);
ethPackets.AdapterHandle = networkAdapters[handle].Handle;
while (filter.ReadPackets(ref ethPackets))
{
var packets = ethPackets.Packets;
for (int i = 0; i < ethPackets.PacketsCount; i++)
{
var ethPacket = packets[i].GetEthernetPacket(ndisApiHelper);
if (ethPacket.PayloadPacket is IPv4Packet iPv4Packet)
{
if (iPv4Packet.PayloadPacket is TcpPacket tcpPacket)
{
Console.WriteLine($"{iPv4Packet.SourceAddress}:{tcpPacket.SourcePort} -> {iPv4Packet.DestinationAddress}:{tcpPacket.DestinationPort}.");
}
}
}
filter.SendPackets(ref ethPackets);
ethPackets.PacketsCount = 0;
}
waitHandlesManualResetEvents[handle].Reset();
}
}
static void Main()
{
var filter = NdisApi.Open(); // check driver available
if (!filter.IsValid)
{
throw new ApplicationException("Драйвер не найден");
}
Console.WriteLine($"Версия сетевого драйвера: {filter.GetVersion()}");
// Создать и установить событие для адаптеров
var waitHandlesCollection = new List <ManualResetEvent>();
// Creating network adapter list
var tcpAdapters = new List <NetworkAdapter>();
foreach (var networkAdapter in filter.GetNetworkAdapters())
{
if (networkAdapter.IsValid)
{
var success = filter.SetAdapterMode(networkAdapter,
NdisApiDotNet.Native.NdisApi.MSTCP_FLAGS.MSTCP_FLAG_TUNNEL |
NdisApiDotNet.Native.NdisApi.MSTCP_FLAGS.MSTCP_FLAG_LOOPBACK_FILTER |
NdisApiDotNet.Native.NdisApi.MSTCP_FLAGS.MSTCP_FLAG_LOOPBACK_BLOCK);
var manualResetEvent = new ManualResetEvent(false);
success &= filter.SetPacketEvent(networkAdapter,
manualResetEvent.SafeWaitHandle);
if (success)
{
Console.WriteLine($"Добавлен адаптер: {networkAdapter.FriendlyName}");
// Добавление адаптеров в список
waitHandlesCollection.Add(manualResetEvent);
tcpAdapters.Add(networkAdapter);
}
}
}
var waitHandlesManualResetEvents =
waitHandlesCollection.Cast <ManualResetEvent>().ToArray();
var waitHandles = waitHandlesCollection.Cast <WaitHandle>().ToArray();
Console.Write("Press ENTER to start");
ConsoleKeyInfo keyInfo = Console.ReadKey();
if (keyInfo.Key == ConsoleKey.Enter)
{
var t1 = Task.Factory.StartNew(() => Threadripper.PassThruThread(filter, waitHandles, tcpAdapters.ToArray(), waitHandlesManualResetEvents));
Task.WaitAll(t1);
Console.Read();
}
}
private static void Main()
{
var filter = NdisApi.Open();
if (!filter.IsValid)
{
throw new ApplicationException("Cannot load driver.");
}
Console.WriteLine($"Loaded driver: {filter.GetVersion()}.");
// Create and set event for the adapters.
var waitHandlesCollection = new List <ManualResetEvent>();
var tcpAdapters = new List <NetworkAdapter>();
foreach (var networkAdapter in filter.GetNetworkAdapters())
{
if (networkAdapter.IsValid)
{
var success = filter.SetAdapterMode(networkAdapter,
NdisApiDotNet.Native.NdisApi.MSTCP_FLAGS.MSTCP_FLAG_TUNNEL |
NdisApiDotNet.Native.NdisApi.MSTCP_FLAGS.MSTCP_FLAG_LOOPBACK_FILTER |
NdisApiDotNet.Native.NdisApi.MSTCP_FLAGS.MSTCP_FLAG_LOOPBACK_BLOCK);
var manualResetEvent = new ManualResetEvent(false);
success &= filter.SetPacketEvent(networkAdapter, manualResetEvent.SafeWaitHandle);
if (success)
{
Console.WriteLine($"Added {networkAdapter.FriendlyName}.");
waitHandlesCollection.Add(manualResetEvent);
tcpAdapters.Add(networkAdapter);
}
}
}
var waitHandlesManualResetEvents = waitHandlesCollection.Cast <ManualResetEvent>().ToArray();
var waitHandles = waitHandlesCollection.Cast <WaitHandle>().ToArray();
var t1 = Task.Factory.StartNew(() => PassThruThread(filter, waitHandles, tcpAdapters.ToArray(), waitHandlesManualResetEvents));
Task.WaitAll(t1);
Console.Read();
}
public static void PassThruThread(NdisApi filter, WaitHandle[] waitHandles, IReadOnlyList <NetworkAdapter> networkAdapters, IReadOnlyList <ManualResetEvent> waitHandlesManualResetEvents)
{
int port = 0;
string ip = "";
var ndisApiHelper = new NdisApiHelper();
var ethRequest = ndisApiHelper.CreateEthRequest();
Console.WriteLine("\nChoose the mode");
//Console.WriteLine("\n1. Show all connections");
Console.WriteLine("\n1. Close connections by source port" +
"\n2. Close connections by source IP" +
"\n3. Close connections by destination port" +
"\n4. Close connections by destination IP" +
"\n5. Close all connections");
var mode = int.Parse(Console.ReadLine());
if (mode == 1 | mode == 3)
{
Console.WriteLine("\nEnter a port:");
port = int.Parse(Console.ReadLine());
}
if (mode == 2 | mode == 4)
{
Console.WriteLine("\nEnter an IP:");
ip = (Console.ReadLine());
}
while (true)
{
var handle = WaitHandle.WaitAny(waitHandles);
ethRequest.AdapterHandle = networkAdapters[handle].Handle;
while (filter.ReadPacket(ref ethRequest))
{
var ethPacket = ethRequest.Packet.GetEthernetPacket(ndisApiHelper);
if (ethPacket.PayloadPacket is IPv4Packet iPv4Packet)
{
if (iPv4Packet.PayloadPacket is TcpPacket tcpPacket)
{
if (mode == 1 && tcpPacket.SourcePort == port)
{
Console.WriteLine($"{iPv4Packet.SourceAddress}:{tcpPacket.SourcePort} -> { iPv4Packet.DestinationAddress}:{ tcpPacket.DestinationPort}.");
continue;
}
if (mode == 3 && tcpPacket.DestinationPort == port)
{
Console.WriteLine($"{iPv4Packet.SourceAddress}:{tcpPacket.SourcePort} -> { iPv4Packet.DestinationAddress}:{ tcpPacket.DestinationPort}.");
continue;
}
if (mode == 2 && iPv4Packet.SourceAddress == IPAddress.Parse(ip))
{
Console.WriteLine($"{iPv4Packet.SourceAddress}:{tcpPacket.SourcePort} -> { iPv4Packet.DestinationAddress}:{ tcpPacket.DestinationPort}.");
continue;
}
if (mode == 4 && iPv4Packet.DestinationAddress == IPAddress.Parse(ip))
{
Console.WriteLine($"{iPv4Packet.SourceAddress}:{tcpPacket.SourcePort} -> { iPv4Packet.DestinationAddress}:{ tcpPacket.DestinationPort}.");
continue;
}
if (mode == 5)
{
Console.WriteLine($"{iPv4Packet.SourceAddress}:{tcpPacket.SourcePort} -> { iPv4Packet.DestinationAddress}:{ tcpPacket.DestinationPort}.");
continue;
}
}
}
filter.SendPacket(ref ethRequest);
}
waitHandlesManualResetEvents[handle].Reset();
}
}
