/// <summary>
/// There are no secondary response messages.
/// The client MUST send as many secondary requests as are needed to complete the transfer of the transaction request.
/// </summary>
internal static List <SMB1Command> GetNTTransactResponse(SMB1Header header, NTTransactSecondaryRequest request, ISMBShare share, SMB1ConnectionState state)
{
ProcessStateObject processState = state.GetProcessState(header.PID);
if (processState == null)
{
throw new InvalidDataException();
}
ByteWriter.WriteBytes(processState.TransactionParameters, (int)request.ParameterDisplacement, request.TransParameters);
ByteWriter.WriteBytes(processState.TransactionData, (int)request.DataDisplacement, request.TransData);
processState.TransactionParametersReceived += request.TransParameters.Length;
processState.TransactionDataReceived += request.TransData.Length;
if (processState.TransactionParametersReceived < processState.TransactionParameters.Length ||
processState.TransactionDataReceived < processState.TransactionData.Length)
{
return(new List <SMB1Command>());
}
else
{
// We have a complete command
state.RemoveProcessState(header.PID);
return(GetCompleteNTTransactResponse(header, processState.MaxParameterCount, processState.MaxDataCount, (NTTransactSubcommandName)processState.SubcommandID, processState.TransactionSetup, processState.TransactionParameters, processState.TransactionData, share, state));
}
}
/// <summary>
/// There are no secondary response messages.
/// The client MUST send as many secondary requests as are needed to complete the transfer of the transaction request.
/// The server MUST respond to the transaction request as a whole.
/// </summary>
internal static List <SMB1Command> GetTransactionResponse(SMB1Header header, TransactionSecondaryRequest request, ISMBShare share, SMB1ConnectionState state)
{
ProcessStateObject processState = state.GetProcessState(header.PID);
if (processState == null)
{
throw new InvalidRequestException();
}
ByteWriter.WriteBytes(processState.TransactionParameters, request.ParameterDisplacement, request.TransParameters);
ByteWriter.WriteBytes(processState.TransactionData, request.DataDisplacement, request.TransData);
processState.TransactionParametersReceived += request.TransParameters.Length;
processState.TransactionDataReceived += request.TransData.Length;
if (processState.TransactionParametersReceived < processState.TransactionParameters.Length ||
processState.TransactionDataReceived < processState.TransactionData.Length)
{
return(new List <SMB1Command>());
}
else
{
// We have a complete command
if (request is Transaction2SecondaryRequest)
{
return(GetCompleteTransaction2Response(header, processState.TransactionSetup, processState.TransactionParameters, processState.TransactionData, share, state));
}
else
{
return(GetCompleteTransactionResponse(header, processState.Name, processState.TransactionSetup, processState.TransactionParameters, processState.TransactionData, share, state));
}
}
}
/// <summary>
/// The client MUST send as many secondary requests as are needed to complete the transfer of the transaction request.
/// </summary>
internal static List <SMB1Command> GetNTTransactResponse(SMB1Header header, NTTransactRequest request, ISMBShare share, SMB1ConnectionState state)
{
if (request.TransParameters.Length < request.TotalParameterCount ||
request.TransData.Length < request.TotalDataCount)
{
// A secondary transaction request is pending
ProcessStateObject processState = state.CreateProcessState(header.PID);
processState.SubcommandID = (ushort)request.Function;
processState.MaxParameterCount = request.MaxParameterCount;
processState.MaxDataCount = request.MaxDataCount;
processState.TransactionSetup = request.Setup;
processState.TransactionParameters = new byte[request.TotalParameterCount];
processState.TransactionData = new byte[request.TotalDataCount];
ByteWriter.WriteBytes(processState.TransactionParameters, 0, request.TransParameters);
ByteWriter.WriteBytes(processState.TransactionData, 0, request.TransData);
processState.TransactionParametersReceived += request.TransParameters.Length;
processState.TransactionDataReceived += request.TransData.Length;
return(new NTTransactInterimResponse());
}
else
{
// We have a complete command
return(GetCompleteNTTransactResponse(header, request.MaxParameterCount, request.MaxDataCount, request.Function, request.Setup, request.TransParameters, request.TransData, share, state));
}
}
/// <summary>
/// The client MUST send as many secondary requests as are needed to complete the transfer of the transaction request.
/// The server MUST respond to the transaction request as a whole.
/// </summary>
internal static List <SMB1Command> GetTransactionResponse(SMB1Header header, TransactionRequest request, ISMBShare share, SMB1ConnectionState state)
{
ProcessStateObject processState = state.ObtainProcessState(header.PID);
processState.MaxDataCount = request.MaxDataCount;
if (request.TransParameters.Length < request.TotalParameterCount ||
request.TransData.Length < request.TotalDataCount)
{
// A secondary transaction request is pending
processState.Name = request.Name;
processState.TransactionSetup = request.Setup;
processState.TransactionParameters = new byte[request.TotalParameterCount];
processState.TransactionData = new byte[request.TotalDataCount];
ByteWriter.WriteBytes(processState.TransactionParameters, 0, request.TransParameters);
ByteWriter.WriteBytes(processState.TransactionData, 0, request.TransData);
processState.TransactionParametersReceived += request.TransParameters.Length;
processState.TransactionDataReceived += request.TransData.Length;
if (request is Transaction2Request)
{
return(new Transaction2InterimResponse());
}
else
{
return(new TransactionInterimResponse());
}
}
else
{
// We have a complete command
if (request is Transaction2Request)
{
return(GetCompleteTransaction2Response(header, request.Setup, request.TransParameters, request.TransData, share, state));
}
else
{
return(GetCompleteTransactionResponse(header, request.Name, request.Setup, request.TransParameters, request.TransData, share, state));
}
}
}
