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Shaswata Das
827363a95b
|
4 years ago | |
|---|---|---|
| .. | ||
| dblattach.c | 4 years ago | |
| dblattach.inf | 4 years ago | |
| dblattach.rc | 4 years ago | |
| dblattachinstall.cmd | 4 years ago | |
| dblattachuninstall.cmd | 4 years ago | |
| makefile | 4 years ago | |
| placefil.txt | 4 years ago | |
| readme.txt | 4 years ago | |
| sources | 4 years ago | |
readme.txt
This is a test filter that is based on Sfilter.
It was written to test the IO verifier check to make sure that a file doesn't try to
reissue a create with a file object that has already been opened and closed by
the base file system.
This filter attaches two device objects to each volume stack, Upper and Lower.
When a CREATE is seen on a file with the name '\test\failure.txt' with no share access,
* Upper and lower will pass it through to the base file system,
* Once the file system has opened the file, Lower will cancel the create by calling
IoCancelFileOpen and returning STATUS_UNSUCCESSFUL.
* When Upper gets STATUS_UNSUCCESSFUL, it will change the ShareAccess for this create
to FILE_SHARE_READ then reissue the CREATE irp.