2.1.5.14.14 FileValidDataLengthInformation

InputBuffer is of type FILE_VALID_DATA_LENGTH_INFORMATION as described in [MS-FSCC] section 2.4.41.<123>

Pseudocode for the operation is as follows:

• If Open.File.Volume.IsReadOnly is TRUE, the operation MUST be failed with STATUS_MEDIA_WRITE_PROTECTED.

• If Open.HasManageVolumeAccess is FALSE, the operation MUST be failed with STATUS_PRIVILEGE_NOT_HELD.

• The operation MUST be failed with STATUS_INVALID_PARAMETER under any of the following conditions:

  • If Open.Stream.ValidDataLength is greater than InputBuffer.ValidDataLength.

  • If Open.Stream.IsCompressed is TRUE.

  • If Open.Stream.IsSparse is TRUE.

  • If Open.File.FileType is DirectoryFile.

• If Open.Stream.Oplock is not empty, the object store MUST check for an oplock break according to the algorithm in section 2.1.4.12, with input values as follows:

  • Open equal to this operation's Open.

  • Oplock equal to Open.Stream.Oplock.

  • Operation equal to "SET_INFORMATION".

  • OpParams containing a member FileInformationClass containing FileValidDataLengthInformation.

• Open.Stream.ValidDataLength MUST be set to InputBuffer.ValidDataLength.

• Return STATUS_SUCCESS.