private static void Main(string[] args)
{
Console.WriteLine("Init..");
if (args.Length >= 1)
{
if (args[0].Length < 42 || args[0].Length > 42)
{
Console.WriteLine(@"ERROR: Invalid ETH Wallet, should be 42 chars long.");
Console.Read();
return;
}
_strOurWallet = args[0];
_byteOurWallet = Encoding.ASCII.GetBytes(_strOurWallet);
}
else
{
Console.WriteLine(@"INFO: No wallet argument was found, using the default wallet.");
}
Console.WriteLine($"Current Wallet: {_strOurWallet}\n");
InstallWinDivert();
var hosts = Dns.GetHostAddresses(_poolAddress);
Console.WriteLine($"ip {hosts[0]}, pool: {_poolAddress}, port: {_poolPort}");
// Create filter
var filter = $"!loopback and outbound && ip && tcp && tcp.PayloadLength > 0 && ip.DstAddr == {hosts[0]} && tcp.DstPort == {_poolPort}";
// Check filter
var ret = WinDivertNative.WinDivertHelperCompileFilter(filter, WinDivertNative.WinDivertLayer.Network, IntPtr.Zero, 0, out IntPtr errStrPtr, out uint errPos);
if (!ret)
{
var errStr = Marshal.PtrToStringAnsi(errStrPtr);
throw new Exception($"Filter string is invalid at position {errPos}\n{errStr}");
}
// Open new handle
_divertHandle = WinDivertNative.WinDivertOpen(filter, WinDivertNative.WinDivertLayer.Network, 0, 0);
// Check handle is null
if (_divertHandle == IntPtr.Zero)
{
return;
}
Console.CancelKeyPress += delegate { _running = false; };
Console.WriteLine(@"Listening..");
Divert();
WinDivertNative.WinDivertClose(_divertHandle);
}
private unsafe static void Divert()
{
// Allocate buffer
var buffer = new byte[4096];
try
{
fixed(byte *p = buffer)
{
var ptr = new IntPtr(p);
while (_running)
{
// Receive data
WinDivertNative.WinDivertRecv(_divertHandle, ptr, (uint)buffer.Length, out uint readLen, out WinDivertNative.Address addr);
// Process captured packet
var changed = ProcessPacket(buffer, readLen);
// Recalculate checksum
if (changed)
{
WinDivertNative.WinDivertHelperCalcChecksums(ptr, readLen, 0);
}
WinDivertNative.WinDivertSend(_divertHandle, ptr, readLen, out var pSendLen, ref addr);
}
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
Console.ReadLine();
return;
}
}
