FltGetFileNameInformation, XP, STATUS_OBJECT_PATH_NOT_FOUND

NTFSD
1

Hi,

I just started to test my filter on XP.

In the completion routine of a IRP_MJ_NETWORK_QUERY_OPEN FASTIO, which succeeded, I am seeing FltGetFileNameInformation fail with STATUS_OBJECT_PATH_NOT_FOUND. The file clearly exists since the call returned with valid data.

Any idea under what circumstances this can happen?

Thanks,
Matt

2

I’m actually seeing this on Vista as well. I think I wasn’t seeing it before because a filter below me was disallowing the FASTIO on the volume I was testing on.

I don’t see anything in the documentation on FltGetFileNameInformation() that it is not safe to call during this FASTIO. Is it not?

Thanks,
Matt

3

Hi Matt,

There is nothing inherently wrong with calling FltGetFileNameInformation in the post of a fastio, so I need more information. Does it always fail ? Are you sure you have all the required privileges ?

Regards,
Alex.
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