linux-kernel - Re: Out of tree module using LSM

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Message-ID: <23463.1196629795@turing-police.cc.vt.edu>
Date:	Sun, 02 Dec 2007 16:09:55 -0500
From:	Valdis.Kletnieks@...edu
To:	Pavel Machek <pavel@....cz>
Cc:	tvrtko.ursulin@...hos.com, Andi Kleen <andi@...stfloor.org>,
	ak@...e.de, linux-kernel@...r.kernel.org
Subject: Re: Out of tree module using LSM

On Sun, 02 Dec 2007 21:22:40 +0100, Pavel Machek said:
> Well, if you only want to detect viruses _sometimes_, you can just
> LD_PRELOAD your scanner.

And for some use cases, that probably *is* the best answer..

> I guess the A/V people should describe what they are trying to do, as
> in
> 
> "forbidden sequences of bits should never hit disk" or "forbidden
> sequences of bits should be never read from disk"  or something...

We probably want to hear related usages as well - what *besides* A/V would be
interested? Indexing services?  Software that tries to limit the distribution
of sensitive info off the machine - for instance, imagine a rule that said
"Data that comes from a file that contains SSNs or the string 'Corporate
Secret' data isn't allowed to leave the computer" and a Perl-like 'taint'
concept.  I'm not saying its *doable*, but it's certainly a goal that somebody
would like to achieve...

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