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On Wed, Apr 23, 2003 at 02:20:38PM +0200, Nir Livni wrote:
> My goal is to write a driver that runs above the filesystem driver, and
> filters calls to this driver.
> Actually, it should pass all calls to the filesystem driver, except very =
few
> that it should fail for "Access Denied". Are there any simple examples for
> that matter ?
A. Sounds like it could be implemented using the LSM (linux security
modules) framework, assuming the appropriate hooks are in place.=20
B. The May 2003 Linux Journal issue has an article on "Writing
Stackable Filesystems" by Erez Zadok, which might fit your needs
better.
Hope this helps,=20
Muli.=20
--=20
Muli Ben-Yehuda
http://www.mulix.org
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