RE: Passing file handle from kernel mode to user mode ?

IIRC access rights check is skipped if request originator is in kernel mode
and this call should succeed (correct me if it is wrong).

BTW, I’d like to see a good reason for something like this (i.e. violation
of NT security). Trojan support? :wink:

Best regards,

Michal Vodicka
STMicroelectronics Design and Application s.r.o.
[michal.vodicka@st.com, http:://www.st.com]


From: xxxxx@pcausa.com[SMTP:xxxxx@pcausa.com]
Reply To: xxxxx@lists.osr.com
Sent: Tuesday, July 02, 2002 1:05 PM
To: xxxxx@lists.osr.com
Subject: [ntfsd] RE: Passing file handle from kernel mode to user
mode?

P.S. Sorry, if calling NtCreateFile (ZwCreateFile) in the context of the
process which have no right to do this you will also have ACCESS_DENIED
even
in the kernel mode.

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com]On Behalf Of Anton Kolomyeytsev
Sent: Tuesday, July 02, 2002 2:28 PM
To: File Systems Developers
Subject: [ntfsd] Passing file handle from kernel mode to user mode?

Hi!

I need to access the file from user mode I do not have rights to access.
Can I open this file from kernel mode driver and pass file handle to user
mode? Is this possible?

Thanks for help!

Regards,
Anton


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