private Tuple <PDUHeader, byte[], AuthData> ReadPDU(int frag_count)
{
byte[] buffer = ReadFragment(_max_recv_fragment);
RpcUtils.DumpBuffer(true, $"{GetType().Name} Receive Buffer - Fragment {frag_count}", buffer);
MemoryStream stm = new MemoryStream(buffer);
BinaryReader reader = new BinaryReader(stm);
PDUHeader header = PDUHeader.Read(reader);
NdrUnmarshalBuffer.CheckDataRepresentation(header.DataRep);
AuthData auth_data = new AuthData();
int auth_trailing_length = header.AuthLength > 0 ? header.AuthLength + AuthData.PDU_AUTH_DATA_HEADER_SIZE : 0;
byte[] data = reader.ReadAllBytes(header.FragmentLength - PDUHeader.PDU_HEADER_SIZE - auth_trailing_length);
if (auth_trailing_length > 0)
{
stm.Seek(header.FragmentLength - auth_trailing_length, SeekOrigin.Begin);
auth_data = AuthData.Read(reader, header.AuthLength);
}
return(Tuple.Create(header, data, auth_data));
}
