Re: Out of tree module using LSM

From: Arjan van de Ven
Date: Sun Dec 02 2007 - 15:03:57 EST


On Sun, 02 Dec 2007 14:44:48 -0500
Valdis.Kletnieks@xxxxxx wrote:

> On Sat, 01 Dec 2007 08:43:32 GMT, Pavel Machek said:
>
> > So what you are trying to do is 'application may never read bad
> > sequence of bits from disk', right?
>
> No, in many of the use cases, we're trying to do "if application
> reads certain specified sequences of bits from disk we know about
> it", which is subtly different. Often, *absolute* prevention isn't
> required, as long as we can generate audit trails and/or alerts...

.. which breaks down if/when glibc uses mmap() to implement the
fopen/fread etc interface
(note: it already does, just not quite yet by default)




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