iosb.status.information , after IRP_MJ_CREATE

NTFSD
1

Hello,

Can some one explain to me what is the difference between returning
FILE_EXISTS and FILE_OPENED?

When is FILE_EXISTS returned?

–
Elias

2

If you look at the FASTFAT example in the IFS kit, they return
FILE_EXISTS when they open a target directory (e.g., for a rename
operaton) - see FatOpenTargetDirectory in create.c.

FILE_OPENED appears to be used in most other cases.

Regards,

Tony

Tony Mason
Consulting Partner
OSR Open Systems Resources, Inc.
http://www.osr.com

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of lallous
Sent: Monday, September 20, 2004 4:22 AM
To: ntfsd redirect
Subject: [ntfsd] iosb.status.information , after IRP_MJ_CREATE

Hello,

Can some one explain to me what is the difference between returning
FILE_EXISTS and FILE_OPENED?

When is FILE_EXISTS returned?

–
Elias

Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17

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3

Hi lallous

I see we are more or less on the same subject as the nieghbouring thread :wink:

FILE_OPENED is returned when the file (or directory, …) is opened.

FILE_EXISTS is returned when the SL_OPEN_TARGET_DIRECTORY flag was set in
the IRP_MJ_CREATE and the named file (or directory) exists; the way the
parent directory of the named file (or directory) has also been opened.

Well at least this is what I believe I observe.

Good luck!
Lyndon

“lallous” wrote in message news:xxxxx@ntfsd…
> Hello,
>
> Can some one explain to me what is the difference between returning
> FILE_EXISTS and FILE_OPENED?
>
> When is FILE_EXISTS returned?
>
> –
> Elias
>
>
>