private static byte[] MakeConnectPayload(ClientInfo client, QPacket p)
{
MemoryStream m = new MemoryStream(p.payload);
uint size = Helper.ReadU32(m);
byte[] buff = new byte[size];
m.Read(buff, 0, (int)size);
size = Helper.ReadU32(m) - 16;
buff = new byte[size];
m.Read(buff, 0, (int)size);
buff = Helper.Decrypt(client.sessionKey, buff);
m = new MemoryStream(buff);
Helper.ReadU32(m);
Helper.ReadU32(m);
uint responseCode = Helper.ReadU32(m);
Log.WriteLine(2, "[QAZAL] Got response code 0x" + responseCode.ToString("X8"));
m = new MemoryStream();
Helper.WriteU32(m, 4);
Helper.WriteU32(m, responseCode + 1);
return(m.ToArray());
}
public QPacket(byte[] data)
{
MemoryStream m = new MemoryStream(data);
m_oSourceVPort = new VPort(Helper.ReadU8(m));
m_oDestinationVPort = new VPort(Helper.ReadU8(m));
m_byPacketTypeFlags = Helper.ReadU8(m);
type = (PACKETTYPE)(m_byPacketTypeFlags & 0x7);
flags = new List <PACKETFLAG>();
ExtractFlags();
m_bySessionID = Helper.ReadU8(m);
m_uiSignature = Helper.ReadU32(m);
uiSeqId = Helper.ReadU16(m);
if (type == PACKETTYPE.SYN || type == PACKETTYPE.CONNECT)
{
m_uiConnectionSignature = Helper.ReadU32(m);
}
if (type == PACKETTYPE.DATA)
{
m_byPartNumber = Helper.ReadU8(m);
}
if (flags.Contains(PACKETFLAG.FLAG_HAS_SIZE))
{
payloadSize = Helper.ReadU16(m);
}
else
{
payloadSize = (ushort)(m.Length - m.Position - 1);
}
MemoryStream pl = new MemoryStream();
if (payloadSize != 0)
{
for (int i = 0; i < payloadSize; i++)
{
pl.WriteByte(Helper.ReadU8(m));
}
}
payload = pl.ToArray();
if (payload != null && payload.Length > 0 && type != PACKETTYPE.SYN && m_oSourceVPort.type != STREAMTYPE.NAT)
{
if (m_oSourceVPort.type == STREAMTYPE.OldRVSec)
{
payload = Helper.Decrypt(Global.keyDATA, payload);
}
usesCompression = payload[0] != 0;
if (usesCompression)
{
MemoryStream m2 = new MemoryStream();
m2.Write(payload, 1, payload.Length - 1);
payload = Helper.Decompress(m2.ToArray());
}
else
{
MemoryStream m2 = new MemoryStream();
m2.Write(payload, 1, payload.Length - 1);
payload = m2.ToArray();
}
payloadSize = (ushort)payload.Length;
}
checkSum = Helper.ReadU8(m);
realSize = (uint)m.Position;
}