private Tuple <PDUHeader, byte[]> ReadPDU(int frag_count)
{
byte[] buffer = _pipe.Read(_max_recv_fragment);
RpcUtils.DumpBuffer(true, $"RPC Named Pipe 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);
if (header.AuthLength != 0)
{
throw new NotSupportedException("Named pipe transport doesn't support authentication data.");
}
return(Tuple.Create(header, reader.ReadAllBytes(header.FragmentLength - PDUHeader.PDU_HEADER_SIZE)));
}
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));
}
/// <summary>
/// Send and receive an RPC message.
/// </summary>
/// <param name="proc_num">The procedure number.</param>
/// <param name="objuuid">The object UUID for the call.</param>
/// <param name="data_representation">NDR data representation.</param>
/// <param name="ndr_buffer">Marshal NDR buffer for the call.</param>
/// <param name="handles">List of handles marshaled into the buffer.</param>
/// <returns>Client response from the send.</returns>
public RpcClientResponse SendReceive(int proc_num, Guid objuuid, NdrDataRepresentation data_representation,
byte[] ndr_buffer, IReadOnlyCollection <NtObject> handles)
{
NdrUnmarshalBuffer.CheckDataRepresentation(data_representation);
PDURequest request = new PDURequest
{
OpNum = (short)proc_num,
ObjectUUID = objuuid,
StubData = ndr_buffer
};
var recv_pdu = SendReceivePDU(request);
if (recv_pdu is PDUResponse pdu_respose)
{
return(new RpcClientResponse(pdu_respose.StubData, new NtObject[0]));
}
else
{
throw new RpcTransportException("Unexpected PDU from server.");
}
}
/// <summary>
/// Send and receive an RPC message.
/// </summary>
/// <param name="proc_num">The procedure number.</param>
/// <param name="objuuid">The object UUID for the call.</param>
/// <param name="data_representation">NDR data representation.</param>
/// <param name="ndr_buffer">Marshal NDR buffer for the call.</param>
/// <param name="handles">List of handles marshaled into the buffer.</param>
/// <returns>Client response from the send.</returns>
public RpcClientResponse SendReceive(int proc_num, Guid objuuid, NdrDataRepresentation data_representation, byte[] ndr_buffer, IReadOnlyCollection <NtObject> handles)
{
NdrUnmarshalBuffer.CheckDataRepresentation(data_representation);
return(new RpcClientResponse(SendReceiveRequestPDU(proc_num, objuuid, ndr_buffer), new NtObject[0]));
}
