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2.1.5.15.14 FileValidDataLengthInformation

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InputBuffer is of type FILE_VALID_DATA_LENGTH_INFORMATION as described in [MS-FSCC] section 2.4.48.<189>

Pseudocode for the operation is as follows:

  • If InputBufferSize is less than the size, in bytes, of the FILE_VALID_DATA_LENGTH_INFORMATION structure, the operation MUST be failed with STATUS_INFO_LENGTH_MISMATCH.

  • 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.