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();
}
}
