/// <summary>
/// to decode the smb parameters: from the general SmbParameters to the concrete Smb Parameters.
/// </summary>
protected override void DecodeParameters()
{
this.smbParameters = TypeMarshal.ToStruct<SMB_COM_READ_ANDX_Request_SMB_Parameters>(
TypeMarshal.ToBytes(this.smbParametersBlock));
}
/// <summary>
/// to create a ReadAndx request packet.
/// </summary>
/// <param name="messageId">This field SHOULD be the multiplex ID that is used to associate a response with a
/// request.</param>
/// <param name="uid">This field SHOULD identify the authenticated instance of the user.</param>
/// <param name="treeId">This field identifies the subdirectory (or tree) on the server that the client is
/// accessing.</param>
/// <param name="flags">An 8-bit field of 1-bit flags describing various features in effect for the
/// message</param>
/// <param name="flags2">A 16-bit field of 1-bit flags that represent various features in effect for the
/// message. Unspecified bits are reserved and MUST be zero.</param>
/// <param name="fid">This field MUST be a valid FID indicating the file from which the data MUST be
/// read.</param>
/// <param name="offset">If WordCount is 10 this field represents a 32-bit offset, measured in bytes, of where
/// the read MUST start relative to the beginning of the file. If WordCount is 12 this field represents the
/// lower 32 bits of a 64-bit offset</param>
/// <param name="maxNumberOfBytesToReturn">The maximum number of bytes to read. A single request MAY NOT return
/// more data than the maximum negotiated buffer size for the session. If MaxCountOfBytesToReturn exceeds the
/// maximum negotiated buffer size the server MUST return the number of bytes that fit within the maximum
/// negotiated buffer size</param>
/// <param name="minNumberOfBytesToReturn">USHORT The requested minimum number of bytes to return. This field
/// is used only when reading from a named pipe or a device. It is ignored when reading from a standard
/// file.</param>
/// <param name="timeout">This field represents the amount of time, in milliseconds, that a server MUST wait
/// before sending a response.</param>
/// <param name="offsetHigh">This field is OPTIONAL. If WordCount is 10 this field is not included in the
/// request. If WordCount is 12 this field represents the upper 32 bits of a 64-bit offset, measured in bytes,
/// of where the read SHOULD start relative to the beginning of the file</param>
/// <param name="andxPacket">the andx packet.</param>
/// <returns>a ReadAndx request packet</returns>
public SmbReadAndxRequestPacket CreateReadAndxRequest(
ushort messageId,
ushort uid,
ushort treeId,
SmbFlags flags,
SmbFlags2 flags2,
ushort fid,
uint offset,
ushort maxNumberOfBytesToReturn,
ushort minNumberOfBytesToReturn,
uint timeout,
uint offsetHigh,
SmbPacket andxPacket)
{
SmbReadAndxRequestPacket packet = new SmbReadAndxRequestPacket();
packet.SmbHeader = CifsMessageUtils.CreateSmbHeader(SmbCommand.SMB_COM_READ_ANDX,
messageId, uid, treeId, flags, flags2);
SMB_COM_READ_ANDX_Request_SMB_Parameters smbParameters = new SMB_COM_READ_ANDX_Request_SMB_Parameters();
smbParameters.Remaining = 0;
smbParameters.AndXReserved = 0;
if (andxPacket == null)
{
smbParameters.AndXCommand = SmbCommand.SMB_COM_NO_ANDX_COMMAND;
}
else
{
smbParameters.AndXCommand = andxPacket.SmbHeader.Command;
}
smbParameters.FID = fid;
smbParameters.Offset = offset;
smbParameters.MaxNumberOfBytesToReturn = maxNumberOfBytesToReturn;
smbParameters.MinNumberOfBytesToReturn = minNumberOfBytesToReturn;
smbParameters.Timeout = timeout;
smbParameters.OffsetHigh = offsetHigh;
smbParameters.WordCount = (byte)(Marshal.SizeOf(smbParameters) / NumBytesOfWord);
SMB_COM_READ_ANDX_Request_SMB_Data smbData = new SMB_COM_READ_ANDX_Request_SMB_Data();
smbData.ByteCount = 0;
packet.SmbParameters = smbParameters;
packet.SmbData = smbData;
packet.AndxPacket = andxPacket;
return packet;
}
