/// <summary>
/// Deep copy constructor.
/// </summary>
public SmbWriteRequestPacket(SmbWriteRequestPacket packet)
: base(packet)
{
this.InitDefaultValue();
this.smbParameters.WordCount = packet.SmbParameters.WordCount;
this.smbParameters.FID = packet.SmbParameters.FID;
this.smbParameters.CountOfBytesToWrite = packet.SmbParameters.CountOfBytesToWrite;
this.smbParameters.WriteOffsetInBytes = packet.SmbParameters.WriteOffsetInBytes;
this.smbParameters.EstimateOfRemainingBytesToBeWritten =
packet.smbParameters.EstimateOfRemainingBytesToBeWritten;
this.smbData.ByteCount = packet.SmbData.ByteCount;
this.smbData.BufferFormat = packet.SmbData.BufferFormat;
this.smbData.DataLength = packet.SmbData.DataLength;
if (packet.smbData.Data != null)
{
this.smbData.Data = new byte[packet.smbData.Data.Length];
Array.Copy(packet.smbData.Data, this.smbData.Data, packet.smbData.Data.Length);
}
else
{
this.smbData.Data = new byte[0];
}
}
/// <summary>
/// Deep copy constructor.
/// </summary>
public SmbWriteRequestPacket(SmbWriteRequestPacket packet)
: base(packet)
{
this.InitDefaultValue();
this.smbParameters.WordCount = packet.SmbParameters.WordCount;
this.smbParameters.FID = packet.SmbParameters.FID;
this.smbParameters.CountOfBytesToWrite = packet.SmbParameters.CountOfBytesToWrite;
this.smbParameters.WriteOffsetInBytes = packet.SmbParameters.WriteOffsetInBytes;
this.smbParameters.EstimateOfRemainingBytesToBeWritten =
packet.smbParameters.EstimateOfRemainingBytesToBeWritten;
this.smbData.ByteCount = packet.SmbData.ByteCount;
this.smbData.BufferFormat = packet.SmbData.BufferFormat;
this.smbData.DataLength = packet.SmbData.DataLength;
if (packet.smbData.Data != null)
{
this.smbData.Data = new byte[packet.smbData.Data.Length];
Array.Copy(packet.smbData.Data, this.smbData.Data, packet.smbData.Data.Length);
}
else
{
this.smbData.Data = new byte[0];
}
}
/// <summary>
/// to create a Write 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
/// MUST be written</param>
/// <param name="writeOffsetInBytes">This field is a 32-bit unsigned integer indicating the offset in number of
/// bytes from the beginning of the file at which to begin writing to the file. The client MUST ensure that the
/// amount of data sent fits in the negotiated maximum buffer size. Because this field is limited to 32-bits
/// this command is inappropriate for files having 64-bit offsets.</param>
/// <param name="estimateOfRemainingBytesToBeWritten">This field is a 16-bit unsigned integer indicating the
/// remaining number of bytes that the client anticipates to write to the file. This is an advisory field and
/// MAY be zero. This information MAY be used by the server to optimize cache behavior</param>
/// <param name="data">The raw bytes to be written to the file</param>
/// <returns>a Write request packet</returns>
public SmbWriteRequestPacket CreateWriteRequest(
ushort messageId,
ushort uid,
ushort treeId,
SmbFlags flags,
SmbFlags2 flags2,
ushort fid,
uint writeOffsetInBytes,
ushort estimateOfRemainingBytesToBeWritten,
byte[] data)
{
if (data == null)
{
data = new byte[0];
}
SmbWriteRequestPacket packet = new SmbWriteRequestPacket();
packet.SmbHeader = CifsMessageUtils.CreateSmbHeader(SmbCommand.SMB_COM_WRITE,
messageId, uid, treeId, flags, flags2);
SMB_COM_WRITE_Request_SMB_Parameters smbParameters = new SMB_COM_WRITE_Request_SMB_Parameters();
smbParameters.FID = fid;
smbParameters.WriteOffsetInBytes = writeOffsetInBytes;
smbParameters.EstimateOfRemainingBytesToBeWritten = estimateOfRemainingBytesToBeWritten;
smbParameters.CountOfBytesToWrite = (ushort)data.Length;
smbParameters.WordCount = (byte)(Marshal.SizeOf(smbParameters) / NumBytesOfWord);
SMB_COM_WRITE_Request_SMB_Data smbData = new SMB_COM_WRITE_Request_SMB_Data();
smbData.BufferFormat = (byte)DataBufferFormat.DataBuffer;
smbData.DataLength = (ushort)data.Length;
smbData.Data = data;
smbData.ByteCount = (ushort)(Marshal.SizeOf(smbData.BufferFormat) + Marshal.SizeOf(smbData.DataLength)
+ smbParameters.CountOfBytesToWrite);
packet.SmbParameters = smbParameters;
packet.SmbData = smbData;
return packet;
}
public SmbWriteResponsePacket CreateWriteResponse(
CifsServerPerConnection connection,
SmbWriteRequestPacket request)
{
SmbWriteResponsePacket response = new SmbWriteResponsePacket();
response.SmbHeader = CifsMessageUtils.CreateSmbHeader(connection, request);
SMB_COM_WRITE_Response_SMB_Parameters smbParameters = response.SmbParameters;
smbParameters.CountOfBytesWritten = request.SmbParameters.CountOfBytesToWrite;
smbParameters.WordCount = (byte)(TypeMarshal.GetBlockMemorySize(smbParameters) / 2);
response.SmbParameters = smbParameters;
return response;
}