private void toolStripButton1_Click(object sender, EventArgs e)
{
try
{
string s = richTextBox1.Text.Trim();
while (s.Contains(" "))
{
s = s.Replace(" ", "");
}
if ((s.Length % 2) != 0)
{
return;
}
byte[] data = ToBuff(s);
data = Helper.Decrypt("CD&ML", data);
MemoryStream m = new MemoryStream();
m.Write(data, 1, data.Length - 1);
data = Helper.Decompress(m.ToArray());
StringBuilder sb = new StringBuilder();
foreach (byte b in data)
{
sb.Append(b.ToString("X2"));
}
richTextBox2.Text = sb.ToString();
}
catch { richTextBox2.Text = "ERROR"; }
}
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);
}
MemoryStream pl = new MemoryStream();
for (int i = (int)m.Position; i < m.Length - 1; i++)
{
pl.WriteByte(Helper.ReadU8(m));
}
payload = pl.ToArray();
payloadSize = (ushort)payload.Length;
if (payload != null && payload.Length > 0)
{
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);
}
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("Got response code 0x" + responseCode.ToString("X8"));
m = new MemoryStream();
Helper.WriteU32(m, 4);
Helper.WriteU32(m, responseCode + 1);
return(m.ToArray());
}
public static void ProcessCONNECT(QPacket p)
{
ClientInfo client = GetClientByIDrecv(p.m_uiSignature);
if (client == null)
{
Log.WriteLine("[UDP] Cand find client for id : 0x" + p.m_uiSignature.ToString("X8"));
return;
}
client.IDsend = p.m_uiConnectionSignature;
QPacket reply = new QPacket();
if (p.payload != null && p.payload.Length > 1)
{
using (var mem = new MemoryStream(p.payload))
{
var ticketLen = Helper.ReadU32(mem);
var ticket = new byte[ticketLen];
for (int i = 0; i < ticketLen; i++)
{
ticket[i] = Helper.ReadU8(mem);
}
var requestDataLen = Helper.ReadU32(mem);
var requestData = new byte[requestDataLen];
for (int i = 0; i < requestDataLen; i++)
{
requestData[i] = Helper.ReadU8(mem);
}
var sessionKey = new byte[] { 0x9C, 0xB0, 0x1D, 0x7A, 0x2C, 0x5A, 0x6C, 0x5B, 0xED, 0x12, 0x68, 0x45, 0x69, 0xAE, 0x09, 0x0D };
var decryptedRequestData = Helper.Decrypt(sessionKey, requestData);
StringBuilder sb = new StringBuilder();
foreach (byte b in decryptedRequestData)
{
sb.Append(b.ToString("X2"));
}
uint rcv;
using (var d = new MemoryStream(decryptedRequestData))
{
var uPid = Helper.ReadU32(d);
var cid = Helper.ReadU32(d);
rcv = Helper.ReadU32(d);
}
using (var r = new MemoryStream())
{
reply.m_oSourceVPort = p.m_oDestinationVPort;
reply.m_oDestinationVPort = p.m_oSourceVPort;
reply.flags = new List <QPacket.PACKETFLAG>()
{
QPacket.PACKETFLAG.FLAG_ACK, QPacket.PACKETFLAG.FLAG_HAS_SIZE
};
reply.type = QPacket.PACKETTYPE.CONNECT;
reply.m_bySessionID = p.m_bySessionID;
reply.m_uiSignature = client.IDsend;
reply.uiSeqId = p.uiSeqId;
reply.m_uiConnectionSignature = client.IDrecv;
Helper.WriteU32(r, 4);
Helper.WriteU32(r, rcv + 1);
reply.payload = r.ToArray();
}
}
}
else
{
reply.m_oSourceVPort = p.m_oDestinationVPort;
reply.m_oDestinationVPort = p.m_oSourceVPort;
reply.flags = new List <QPacket.PACKETFLAG>()
{
QPacket.PACKETFLAG.FLAG_ACK
};
reply.type = QPacket.PACKETTYPE.CONNECT;
reply.m_bySessionID = p.m_bySessionID;
reply.m_uiSignature = client.IDsend;
reply.uiSeqId = p.uiSeqId;
reply.m_uiConnectionSignature = client.IDrecv;
reply.payload = new byte[0];
}
Send(reply, client);
}
