// Callback function invoked by Pcap.Net for every incoming packet
private static void PacketHandler(object sender, CaptureEventArgs e)
{
var packet = PacketDotNet.Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data);
var tcpPacket = packet.Extract<PacketDotNet.TcpPacket>();
if (tcpPacket != null && tcpPacket.PayloadData.Length > 0)
{
var bytes = tcpPacket.PayloadData;
if (tcpPacket.SourcePort == 4000)
{
if (bytes.Length == 2 && bytes[0] == 0xA7 && bytes[1] == 0x01)
{
Log.Debug($"D2GS Initial packet received: {bytes.ByteArrayToString()}");
return;
}
Log.Debug($"D2GS Full packet received: {bytes.ByteArrayToString()}");
var stream = gameServerConnection._stream as SnifferNetworkStream;
stream.AddBytes(bytes);
var initialBytes = stream.GetBytes();
try
{
initialBytes = stream.GetBytes();
while (gameServerConnection.ReadPacket() != null)
{
}
}
catch
{
stream.SetBytes(initialBytes);
}
}
else if(tcpPacket.DestinationPort == 4000)
{
OutgoingD2GSPackets.HandleOutgoingPacket(bytes);
}
else if (tcpPacket.SourcePort == 6112)
{
Log.Debug($"BNCS Full packet received: {bytes.ByteArrayToString()}");
var stream = bncsConnection._stream as SnifferNetworkStream;
stream.AddBytes(bytes);
try
{
bncsConnection.ReadPacket();
}
catch
{
}
}
else if (tcpPacket.DestinationPort == 6112)
{
OutgoingBNCSPackets.HandleOutgoingPacket(bytes);
}
else if (tcpPacket.SourcePort == 6113)
{
if (bytes.Length == 7 && bytes[0] == 0x07 && bytes[2] == 0x01)
{
Log.Debug($"MCP Initial packet received: {bytes.ByteArrayToString()}");
return;
}
Log.Debug($"MCP Full packet received: {bytes.ByteArrayToString()}");
var stream = mcpConnection._stream as SnifferNetworkStream;
stream.AddBytes(bytes);
mcpConnection.ReadPacket();
}
else if (tcpPacket.DestinationPort == 6113)
{
OutgoingMCPPackets.HandleOutgoingPacket(bytes);
}
}
}
