The server provides:
Open: An Open of a DirectoryStream.
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.
BytesReturned: The number of bytes written to OutputBuffer.
This operation also uses the following local variables:
A list of Links (initialized to empty): MatchingLinks.
Unicode string: RelativeName.
32-bit unsigned integers (initialized to zero): OutputBufferOffset, NameLength.
Support for this operation is optional. If the object store does not implement this functionality, the operation MUST be failed with STATUS_INVALID_DEVICE_REQUEST.<63>
Pseudocode for the operation is as follows:
If Open.Stream.StreamType is DataStream, the operation MUST be failed with STATUS_INVALID_PARAMETER.
If Open.HasManageVolumeAccess is FALSE and Open.HasBackupAccess is FALSE, the operation MUST be failed with STATUS_ACCESS_DENIED.
If Open.File.Volume.QuotaInformation is empty, the operation MUST succeed with BytesReturned set to zero and Status set to STATUS_NO_QUOTAS_FOR_ACCOUNT.
If OutputBufferSize is less than 8, the minimum size required to return a FILE_NAME_INFORMATION structure with trailing padding, the operation MUST be failed with STATUS_INVALID_USER_BUFFER.
If FindBySidData.Restart is TRUE, Open.FindBySidRestartIndex MUST be set to zero.
For each File in FindAllFiles(Open.File.Volume.RootDirectory):<64>
If File.SecurityDescriptor.OwnerSid matches FindBySidData.SID and File.FileNumber is greater than or equal to Open.FindBySidRestartIndex, insert the first element of File.LinkList into MatchingLinks.
Sort MatchingLinks in ascending order by File.FileNumber.
For each Link in MatchingLinks:
Set RelativeName to BuildRelativeName(Link.File, Open.File).
If RelativeName is not empty (which means that Link represents Open.File or a descendant of it):
Strip off the leading backslash ("\") character from RelativeName.
Set NameLength to the length of RelativeName, in bytes.
If (OutputBufferLength - OutputBufferOffset) is less than BlockAlign(NameLength + 6, 8):
BytesReturned is set to OutputBufferOffset.
If OutputBufferOffset is not zero:
The operation returns with STATUS_SUCCESS.
The operation MUST be failed with STATUS_BUFFER_TOO_SMALL.
Construct a FILE_NAME_INFORMATION structure starting at OutputBuffer[OutputBufferOffset], with the first 4 bytes (the FileNameLength) set to NameLength, and the next NameLength bytes (the FileName) set to RelativeName.
OutputBufferOffset = OutputBufferOffset + BlockAlign(NameLength + 6, 8).
Set Open.FindBySidRestartIndex to Link.File.FileNumber + 1.
Upon successful completion of the operation, the object store MUST return:
BytesReturned set to OutputBufferOffset.
Status set to STATUS_SUCCESS.