/// <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_WRITE_AND_CLOSE_Request_SMB_Parameters>(
TypeMarshal.ToBytes(this.smbParametersBlock));
}
/// <summary>
/// to create a WriteAndClose 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 16-bit signed integer indicating the file to which the data
/// SHOULD be written.</param>
/// <param name="writeOffsetInBytes">This field is a 16-bit unsigned integer indicating the number of bytes to
/// be written to the file</param>
/// <param name="lastWriteTime">This field is a 32-bit unsigned integer indicating the number of seconds since
/// Jan 1, 1970, 00:00:00.0. The server SHOULD set the last write time of the file represented by the FID to
/// this value. If the value is zero (0), the server SHOULD use the current local time of the server to set the
/// value. Failure to set the time MUST not result in an error response from the server.</param>
/// <param name="data">The raw bytes to be written to the file</param>
/// <returns>a WriteAndClose request packet</returns>
public SmbWriteAndCloseRequestPacket CreateWriteAndCloseRequest(
ushort messageId,
ushort uid,
ushort treeId,
SmbFlags flags,
SmbFlags2 flags2,
ushort fid,
uint writeOffsetInBytes,
UTime lastWriteTime,
byte[] data)
{
if (data == null)
{
data = new byte[0];
}
SmbWriteAndCloseRequestPacket packet = new SmbWriteAndCloseRequestPacket();
packet.SmbHeader = CifsMessageUtils.CreateSmbHeader(SmbCommand.SMB_COM_WRITE_AND_CLOSE,
messageId, uid, treeId, flags, flags2);
SMB_COM_WRITE_AND_CLOSE_Request_SMB_Parameters smbParameters =
new SMB_COM_WRITE_AND_CLOSE_Request_SMB_Parameters();
smbParameters.FID = fid;
smbParameters.CountOfBytesToWrite = (ushort)data.Length;
smbParameters.WriteOffsetInBytes = writeOffsetInBytes;
smbParameters.LastWriteTime = lastWriteTime;
smbParameters.Reserved = new uint[3]; // the correct length of Reserved word is always 3.
smbParameters.WordCount = (byte)(CifsMessageUtils.GetSize<SMB_COM_WRITE_AND_CLOSE_Request_SMB_Parameters>(
smbParameters) / NumBytesOfWord);
SMB_COM_WRITE_AND_CLOSE_Request_SMB_Data smbData = new SMB_COM_WRITE_AND_CLOSE_Request_SMB_Data();
smbData.Pad = 0;
smbData.Data = data;
smbData.ByteCount = (ushort)(Marshal.SizeOf(smbData.Pad) + smbData.Data.Length);
packet.SmbParameters = smbParameters;
packet.SmbData = smbData;
return packet;
}
