public byte[] toBuffer()
{
MemoryStream m = new MemoryStream();
Helper.WriteU8(m, m_oSourceVPort.toByte());
Helper.WriteU8(m, m_oDestinationVPort.toByte());
byte typeFlag = (byte)type;
foreach (PACKETFLAG flag in flags)
{
typeFlag |= (byte)((byte)flag << 3);
}
Helper.WriteU8(m, typeFlag);
Helper.WriteU8(m, m_bySessionID);
Helper.WriteU32(m, m_uiSignature);
Helper.WriteU16(m, uiSeqId);
if (type == PACKETTYPE.SYN || type == PACKETTYPE.CONNECT)
{
Helper.WriteU32(m, m_uiConnectionSignature);
}
if (type == PACKETTYPE.DATA)
{
Helper.WriteU8(m, m_byPartNumber);
}
byte[] tmpPayload = payload;
if (tmpPayload != null && tmpPayload.Length > 0 && type != PACKETTYPE.SYN && m_oSourceVPort.type != STREAMTYPE.NAT)
{
if (usesCompression)
{
uint sizeBefore = (uint)tmpPayload.Length;
byte[] buff = Helper.Compress(tmpPayload);
byte count = (byte)(sizeBefore / buff.Length);
if ((sizeBefore % buff.Length) != 0)
{
count++;
}
MemoryStream m2 = new MemoryStream();
m2.WriteByte(count);
m2.Write(buff, 0, buff.Length);
tmpPayload = m2.ToArray();
}
else
{
MemoryStream m2 = new MemoryStream();
m2.WriteByte(0);
m2.Write(tmpPayload, 0, tmpPayload.Length);
tmpPayload = m2.ToArray();
}
if (m_oSourceVPort.type == STREAMTYPE.OldRVSec)
{
tmpPayload = Helper.Encrypt(Global.keyDATA, tmpPayload);
}
}
if (flags.Contains(PACKETFLAG.FLAG_HAS_SIZE))
{
Helper.WriteU16(m, (ushort)tmpPayload.Length);
}
m.Write(tmpPayload, 0, tmpPayload.Length);
return(AddCheckSum(m.ToArray()));
}
public byte[] toBuffer()
{
MemoryStream m = new MemoryStream();
m.Write(sessionKey, 0, 16);
Helper.WriteU32(m, serverPID);
Helper.WriteU32(m, (uint)ticket.Length);
m.Write(ticket, 0, ticket.Length);
byte[] buff = m.ToArray();
byte[] key = Helper.DeriveKey(userPID);
buff = Helper.Encrypt(key, buff);
byte[] hmac = Helper.MakeHMAC(key, buff);
m = new MemoryStream();
m.Write(buff, 0, buff.Length);
m.Write(hmac, 0, hmac.Length);
return(m.ToArray());
}
