private SmbPacket CreateTransaction2ResponsePacket(SmbPacket request, SmbHeader smbHeader, Channel channel)
{
SmbPacket smbPacket = null;
if (smbHeader.Status == 0 && channel.Peek<byte>(0) == 0 && channel.Peek<ushort>(1) == 0)
{
return smbPacket;
}
SmbTransaction2RequestPacket transaction2Request = request as SmbTransaction2RequestPacket;
if (transaction2Request == null)
{
return smbPacket;
}
// if no setup command. break
if (transaction2Request.SmbParameters.SetupCount == 0)
{
return smbPacket;
}
// decode packet using the setup command
switch ((Trans2SubCommand)transaction2Request.SmbParameters.Setup[0])
{
case Trans2SubCommand.TRANS2_QUERY_FILE_INFORMATION:
SmbTrans2QueryFileInformationRequestPacket queryFileRequest =
transaction2Request as SmbTrans2QueryFileInformationRequestPacket;
if (queryFileRequest != null)
{
smbPacket = new SmbTrans2QueryFileInformationResponsePacket(
queryFileRequest.Trans2Parameters.InformationLevel);
}
break;
case Trans2SubCommand.TRANS2_QUERY_PATH_INFORMATION:
SmbTrans2QueryPathInformationRequestPacket queryPathRequest =
transaction2Request as SmbTrans2QueryPathInformationRequestPacket;
if (queryPathRequest != null)
{
smbPacket = new SmbTrans2QueryPathInformationResponsePacket(
queryPathRequest.Trans2Parameters.InformationLevel);
}
break;
case Trans2SubCommand.TRANS2_SET_FILE_INFORMATION:
smbPacket = new SmbTrans2SetFileInformationResponsePacket();
break;
case Trans2SubCommand.TRANS2_SET_PATH_INFORMATION:
smbPacket = new SmbTrans2SetPathInformationResponsePacket();
break;
case Trans2SubCommand.TRANS2_QUERY_FS_INFORMATION:
SmbTrans2QueryFsInformationRequestPacket queryFsRequest =
transaction2Request as SmbTrans2QueryFsInformationRequestPacket;
if (queryFsRequest != null)
{
smbPacket = new SmbTrans2QueryFsInformationResponsePacket(
queryFsRequest.Trans2Parameters.InformationLevel);
}
break;
case Trans2SubCommand.TRANS2_SET_FS_INFORMATION:
smbPacket = new SmbTrans2SetFsInformationResponsePacket();
break;
case Trans2SubCommand.TRANS2_FIND_FIRST2:
SmbTrans2FindFirst2RequestPacket first2Request =
transaction2Request as SmbTrans2FindFirst2RequestPacket;
if (first2Request != null)
{
smbPacket = new SmbTrans2FindFirst2ResponsePacket(first2Request.Trans2Parameters.InformationLevel,
(first2Request.Trans2Parameters.Flags & Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS)
== Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS);
}
break;
case Trans2SubCommand.TRANS2_FIND_NEXT2:
SmbTrans2FindNext2RequestPacket next2Request =
transaction2Request as SmbTrans2FindNext2RequestPacket;
if (next2Request != null)
{
smbPacket = new SmbTrans2FindNext2ResponsePacket(next2Request.Trans2Parameters.InformationLevel,
(next2Request.Trans2Parameters.Flags & Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS)
== Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS);
}
break;
case Trans2SubCommand.TRANS2_GET_DFS_REFERRAL:
smbPacket = new SmbTrans2GetDfsReferralResponsePacket();
break;
default:
break;
}
return smbPacket;
}
/// <summary>
/// Create TRANS2_QUERY_FILE_INFORMATION Response
/// </summary>
/// <param name="connection">the connection identified the client</param>
/// <param name = "data">data specified by [CIFS] </param>
/// <returns>The SmbTrans2QueryFileInformationResponsePacket </returns>
/// <exception cref="ArgumentNullException">connection must not be null</exception>
public virtual SmbTrans2QueryFileInformationResponsePacket CreateTrans2QueryFileInformationResponse(
SmbServerConnection connection,
object data)
{
if (connection == null)
{
throw new ArgumentNullException("connection");
}
SmbTrans2QueryFileInformationResponsePacket packet = new SmbTrans2QueryFileInformationResponsePacket();
// get the request packet
SmbPacket request = connection.GetRequestPacket(connection.MessageId);
// create smb packet header
packet.SmbHeader = CifsMessageUtils.CreateSmbHeader(
SmbCommand.SMB_COM_TRANSACTION2,
connection.ProcessId, connection.MessageId, request.SmbHeader.Uid, request.SmbHeader.Tid,
(SmbFlags)connection.Capability.Flag, (SmbFlags2)connection.Capability.Flags2);
// update smb parameters
SMB_COM_TRANSACTION2_FinalResponse_SMB_Parameters smbParameters = packet.SmbParameters;
smbParameters.Setup = new ushort[0];
smbParameters.WordCount = (byte)(CifsMessageUtils.GetSize<SMB_COM_TRANSACTION2_FinalResponse_SMB_Parameters>(
smbParameters) / SmbCapability.NUM_BYTES_OF_WORD);
// update smb data
SMB_COM_TRANSACTION2_FinalResponse_SMB_Data smbData = packet.SmbData;
// update trans2 param
TRANS2_QUERY_PATH_INFORMATION_Response_Trans2_Parameters trans2Parameters = packet.Trans2Parameters;
// update trans2 data
TRANS2_QUERY_PATH_INFORMATION_Response_Trans2_Data trans2Data = packet.Trans2Data;
trans2Data.Data = data;
// store the parameters and data to packet.
packet.Trans2Parameters = trans2Parameters;
packet.Trans2Data = trans2Data;
packet.SmbParameters = smbParameters;
packet.SmbData = smbData;
packet.UpdateCountAndOffset();
return packet;
}
private SmbPacket CreateTransaction2ResponsePacket(SmbPacket request, SmbHeader smbHeader, Channel channel)
{
SmbPacket smbPacket = null;
if (smbHeader.Status == 0 && channel.Peek <byte>(0) == 0 && channel.Peek <ushort>(1) == 0)
{
return(smbPacket);
}
SmbTransaction2RequestPacket transaction2Request = request as SmbTransaction2RequestPacket;
if (transaction2Request == null)
{
return(smbPacket);
}
// if no setup command. break
if (transaction2Request.SmbParameters.SetupCount == 0)
{
return(smbPacket);
}
// decode packet using the setup command
switch ((Trans2SubCommand)transaction2Request.SmbParameters.Setup[0])
{
case Trans2SubCommand.TRANS2_QUERY_FILE_INFORMATION:
SmbTrans2QueryFileInformationRequestPacket queryFileRequest =
transaction2Request as SmbTrans2QueryFileInformationRequestPacket;
if (queryFileRequest != null)
{
smbPacket = new SmbTrans2QueryFileInformationResponsePacket(
queryFileRequest.Trans2Parameters.InformationLevel);
}
break;
case Trans2SubCommand.TRANS2_QUERY_PATH_INFORMATION:
SmbTrans2QueryPathInformationRequestPacket queryPathRequest =
transaction2Request as SmbTrans2QueryPathInformationRequestPacket;
if (queryPathRequest != null)
{
smbPacket = new SmbTrans2QueryPathInformationResponsePacket(
queryPathRequest.Trans2Parameters.InformationLevel);
}
break;
case Trans2SubCommand.TRANS2_SET_FILE_INFORMATION:
smbPacket = new SmbTrans2SetFileInformationResponsePacket();
break;
case Trans2SubCommand.TRANS2_SET_PATH_INFORMATION:
smbPacket = new SmbTrans2SetPathInformationResponsePacket();
break;
case Trans2SubCommand.TRANS2_QUERY_FS_INFORMATION:
SmbTrans2QueryFsInformationRequestPacket queryFsRequest =
transaction2Request as SmbTrans2QueryFsInformationRequestPacket;
if (queryFsRequest != null)
{
smbPacket = new SmbTrans2QueryFsInformationResponsePacket(
queryFsRequest.Trans2Parameters.InformationLevel);
}
break;
case Trans2SubCommand.TRANS2_SET_FS_INFORMATION:
smbPacket = new SmbTrans2SetFsInformationResponsePacket();
break;
case Trans2SubCommand.TRANS2_FIND_FIRST2:
SmbTrans2FindFirst2RequestPacket first2Request =
transaction2Request as SmbTrans2FindFirst2RequestPacket;
if (first2Request != null)
{
smbPacket = new SmbTrans2FindFirst2ResponsePacket(first2Request.Trans2Parameters.InformationLevel,
(first2Request.Trans2Parameters.Flags & Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS)
== Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS);
}
break;
case Trans2SubCommand.TRANS2_FIND_NEXT2:
SmbTrans2FindNext2RequestPacket next2Request =
transaction2Request as SmbTrans2FindNext2RequestPacket;
if (next2Request != null)
{
smbPacket = new SmbTrans2FindNext2ResponsePacket(next2Request.Trans2Parameters.InformationLevel,
(next2Request.Trans2Parameters.Flags & Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS)
== Trans2FindFlags.SMB_FIND_RETURN_RESUME_KEYS);
}
break;
case Trans2SubCommand.TRANS2_GET_DFS_REFERRAL:
smbPacket = new SmbTrans2GetDfsReferralResponsePacket();
break;
default:
break;
}
return(smbPacket);
}