/// <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_LOCKING_ANDX_Request_SMB_Parameters>(
TypeMarshal.ToBytes(this.smbParametersBlock));
}
/// <summary>
/// to create a LockingAndx 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 from which the data
/// SHOULD be read</param>
/// <param name="typeOfLock">This field is a 8-bit unsigned integer bit mask indicating the nature of the lock
/// request and the format of the LOCKING_ANDX_RANGE data</param>
/// <param name="newOplockLevel">This field is valid only in SMB_COM_LOCKING_ANDX SMB requests sent from the
/// server to the client in response to a change in the existing Oplock's state</param>
/// <param name="timeout">This field is a 32-bit unsigned integer value</param>
/// <param name="unlocks">An array of byte ranges to be unlocked. If 32-bit offsets are being used, this field
/// uses LOCKING_ANDX_RANGE32 (see below) and is (10 * NumberOfRequestedUnlocks) bytes in length. If 64-bit
/// offsets are being used, this field uses LOCKING_ANDX_RANGE64 (see below) and is (20 *
/// NumberOfRequestedUnlocks) bytes in length.</param>
/// <param name="locks">An array of byte ranges to be locked. If 32-bit offsets are being used, this field uses
/// LOCKING_ANDX_RANGE32 (see below) and is (10 * NumberOfRequestedUnlocks) bytes in length. If 64-bit offsets
/// are being used, this field uses LOCKING_ANDX_RANGE64 (see below) and is (20 * NumberOfRequestedUnlocks)
/// bytes in length</param>
/// <param name="andxPacket">the andx packet.</param>
/// <returns>a LockingAndx request packet</returns>
public SmbLockingAndxRequestPacket CreateLockingAndxRequest(
ushort messageId,
ushort uid,
ushort treeId,
SmbFlags flags,
SmbFlags2 flags2,
ushort fid,
LockingAndxTypeOfLock typeOfLock,
NewOplockLevelValue newOplockLevel,
uint timeout,
Object[] unlocks,
Object[] locks,
SmbPacket andxPacket)
{
if (unlocks == null)
{
unlocks = new Object[0];
}
if (locks == null)
{
locks = new Object[0];
}
SmbLockingAndxRequestPacket packet = new SmbLockingAndxRequestPacket();
packet.SmbHeader = CifsMessageUtils.CreateSmbHeader(SmbCommand.SMB_COM_LOCKING_ANDX,
messageId, uid, treeId, flags, flags2);
SMB_COM_LOCKING_ANDX_Request_SMB_Parameters smbParameters =
new SMB_COM_LOCKING_ANDX_Request_SMB_Parameters();
if (andxPacket == null)
{
smbParameters.AndXCommand = SmbCommand.SMB_COM_NO_ANDX_COMMAND;
}
else
{
smbParameters.AndXCommand = andxPacket.SmbHeader.Command;
}
smbParameters.AndXReserved = 0;
smbParameters.FID = fid;
smbParameters.TypeOfLock = typeOfLock;
smbParameters.NewOplockLevel = newOplockLevel;
smbParameters.Timeout = timeout;
smbParameters.NumberOfRequestedUnlocks = (ushort)unlocks.Length;
smbParameters.NumberOfRequestedLocks = (ushort)locks.Length;
smbParameters.WordCount = (byte)(Marshal.SizeOf(smbParameters) / NumBytesOfWord);
SMB_COM_LOCKING_ANDX_Request_SMB_Data smbData = new SMB_COM_LOCKING_ANDX_Request_SMB_Data();
smbData.Locks = locks;
smbData.Unlocks = unlocks;
smbData.ByteCount = 0;
foreach (object lockItem in unlocks)
{
smbData.ByteCount += (ushort)Marshal.SizeOf(lockItem);
}
foreach (object lockItem in locks)
{
smbData.ByteCount += (ushort)Marshal.SizeOf(lockItem);
}
packet.SmbParameters = smbParameters;
packet.SmbData = smbData;
packet.AndxPacket = andxPacket;
return packet;
}
