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sys: IRP_MJ_CREATE: STATUS_REPARSE: clarify RelatedFileObject handling

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This commit is contained in:
Bill Zissimopoulos 2016-01-05 13:08:26 -08:00
parent 2e5b7dc716
commit 0d7a6f5ce6
1 changed files with 15 additions and 0 deletions
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15
src/sys/create.c
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@ -364,6 +364,21 @@ VOID FspFsvolCreateComplete(
}
FileObject->FileName.Length = 0;
RtlCopyUnicodeString(&FileObject->FileName, &ReparseFileName);
/*
* The RelatedFileObject does not need to be changed according to:
* https://support.microsoft.com/en-us/kb/319447
*
* Quote:
* The fact that the first create-file operation is performed
* relative to another file object does not matter. Do not modify
* the RelatedFileObject field of the FILE_OBJECT. To perform the
* reparse operation, the IO Manager considers only the FileName
* field and not the RelatedFileObject. Additionally, the IO Manager
* frees the RelatedFileObject, as appropriate, when it handles the
* STATUS_REPARSE status returned by the filter. Therefore, it is not
* the responsibility of the filter to free that file object.
*/
}
else
if (IO_REMOUNT == Response->IoStatus.Information)