private static void Device_OnPacketArrival(object sender, CaptureEventArgs e)
{
Packet rawPacket;
try
{
rawPacket = Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data);
}
catch
{
Console.WriteLine("parse packet fail " + e.Packet.LinkLayerType);
rawPacket = new UdpPacket(1, 1);
return;
}
//var ethernetPacket = (EthernetPacket)Packet.ParsePacket(e.Packet.LinkLayerType, e.Packet.Data);
if (rawPacket.PayloadPacket?.PayloadPacket is TcpPacket)
{
var ip = (IPPacket)rawPacket.PayloadPacket;
var tcp = (TcpPacket)rawPacket.PayloadPacket.PayloadPacket;
if (ip.SourceAddress.ToString().StartsWith("204.2.229.") || ip.DestinationAddress.ToString().StartsWith("204.2.229."))
//if (ip.SourceAddress.ToString().StartsWith("192") || ip.DestinationAddress.ToString().StartsWith("192"))
{
if (tcp.PayloadData.Length < 4)
{
return;
}
if (captureFileWriter != null)
{
captureFileWriter.Write(rawPacket.Bytes);
}
var s2c = !ip.SourceAddress.ToString().StartsWith("192");
var isLobby = s2c ? tcp.SourcePort == 54994 : tcp.DestinationPort == 54994;;
var channel = isLobby ? "Lobby" : "Game";
var p = new PacketWrapper
{
S2C = s2c,
Channel = channel,
Bytes = tcp.PayloadData
};
PacketProcessor(p);
}
}
}
public void test(PacketWrapper p)
{
BeginInvoke(new MethodInvoker(delegate
{
if (PacketsView.DataSource == null)
{
PacketsView.DataSource = Packets;
}
Parser.Stream = new MemoryStream(p.Bytes);
var packets = Parser.Test(p);
foreach (var packet in packets)
{
var packetWrapper = new PacketWrapper();
packetWrapper.Channel = p.Channel;
packetWrapper.S2C = p.S2C;
packetWrapper.Bytes = p.Bytes;
packetWrapper.Packet = packet;
packetWrapper.PacketType = packet.GetType().Name;
Packets.Add(packetWrapper);
}
}));
}
public List <Packet> Test(PacketWrapper packetWrapper)
{
var packetBytes = ReadPacket();
var packets = new List <Packet>();
var offset = 0;
while (offset < packetBytes.Length - 3)
//for (int i = 0; i < messageCount; i++)
{
var messageLength = BitConverter.ToInt32(packetBytes, offset);
var source = BitConverter.ToUInt32(packetBytes, offset + 4);
var dest = BitConverter.ToUInt32(packetBytes, offset + 8);
var packetType = (PacketId)BitConverter.ToUInt32(packetBytes, offset + 12);
//var messageBytes = packetBytes.Skip(offset + 12).Take(messageLength - 12).ToArray();
var messageBytes = packetBytes.Skip(offset).Take(messageLength).ToArray();
var origMessageBytes = messageBytes.ToList().ToArray();
var origpacketType = packetType;
var packetEnum = typeof(PacketId);
/*try
* {
* var packetName = typeof(PacketId).AssemblyQualifiedName.Replace(typeof(PacketId).Name, ((PacketId)packetType).ToString());
* Packet packet = (Packet)Activator.CreateInstance(Type.GetType(packetName));
* packet.Bytes = messageBytes;
* packets.Add(packet);
* }
* catch
* {
* packets.Add(new Packet { Bytes = packetBytes.Skip(offset).Take(messageLength).ToArray() });
* }*/
if ((packetType == PacketId.Opcode || packetType == PacketId.LobbyS2CAuth))
{
if (packetWrapper.Channel == "Lobby")
{
Key.Decipher(messageBytes, 4 + 12, messageBytes.Length - 8 - 16);
}
if (packetType == PacketId.Opcode)
{
packetEnum = typeof(WorldOpcode);
}
if (packetType != PacketId.LobbyS2CAuth)
{
messageBytes = messageBytes.Skip(4 + 12).ToArray();
packetType = (PacketId)BitConverter.ToUInt32(messageBytes, 2);
}
}
var data = BitConverter.ToString(messageBytes);
//Packet packet = new Packet();
//Console.WriteLine("s " + GetType().Name + " : " + Type.GetType(packetName).Name);
try
{
var packetName = packetType.ToString();
if (packetEnum == typeof(WorldOpcode))
{
packetName = ((WorldOpcode)packetType).ToString();
}
else
{
Console.WriteLine("rawr");
}
packetName = packetEnum.AssemblyQualifiedName.Replace(packetEnum.Name, packetName);
Packet packet = (Packet)Activator.CreateInstance(Type.GetType(packetName));
packet.Bytes = messageBytes;
packets.Add(packet);
}catch {
packets.Add(new Packet {
Bytes = packetBytes.Skip(offset).Take(messageLength).ToArray()
});
}
offset += messageLength;
}
return(packets);
}