Re: [RFC][Patch 1/6] integrity: new hooks

From: Serge E. Hallyn
Date: Thu Mar 08 2007 - 13:48:55 EST


Quoting Casey Schaufler (casey@xxxxxxxxxxxxxxxx):
>
> --- "Serge E. Hallyn" <serue@xxxxxxxxxx> wrote:
>
>
> > It's unfortunate, agreed, but
> >
> > use of LSM as an integrity framework was also a
> > no-go.
>
> You're going to have to justify this assertion.

You misunderstand. I wasn't saying it wouldn't work :) I was saying
that it's been said repeatedly that evm should be implemented as an
integrity, not security, module.

I think it should be done as both. The part which measures the
integrity of files should be an integrity subsystem. The part which
uses those results to either allow/refuse actions or take some other
action (i.e. shut down the system) should be an lsm.

> I know of at least one work-in-progress for which
> LSM works just fine. Not to mention the Integrity
> claims of SELinux.

-serge
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