Support for this operation is optional. If the object store does not implement this functionality, this operation MUST be failed with STATUS_INVALID_DEVICE_REQUEST.<74>
The server provides:
Open: An Open of a DataFile or DirectoryFile.
OutputBufferSize: The maximum number of bytes to return in OutputBuffer.
On completion, the object store MUST return:
Status: An NTSTATUS code that specifies the result.
OutputBuffer: An array of bytes that will return the first 0x24 bytes of sector zero, on a FAT volume.
BytesReturned: The number of bytes returned in OutputBuffer.
Pseudocode for the operation is as follows:
If OutputBufferSize is less than 0x24, the operation MUST be failed with STATUS_BUFFER_TOO_SMALL.
The operation will now copy the first 0x24 bytes of sector 0 of the storage device associated with Open.File.Volume into OutputBuffer.
Upon successful completion of the operation, the object store MUST return:
BytesReturned set to 0x24.
Status set to STATUS_SUCCESS.