On Wed, 2007-09-26 at 14:30 +0100, David Howells wrote:
> Stephen Smalley wrote:
>
> > Precisely when to use one identity vs. the other though isn't always
> > clear, and the potential for accidental divergence is also a concern.
>
> What should auditing use in audit_filter_rules() when dealing with
> AUDIT_SUBJ_* cases? Should the SUBJ cases use the subjective SID and the
> AUDIT_OBJ_* cases use the objective SID? On the other hand AUDIT_OBJ_* cases
> don't seem to have anything to do with tasks.

(cc'd linux-audit)

As you say, I don't think AUDIT_OBJ_* has anything to do with tasks,
just object labels (like inode labels).

I think you likely want the actor SID / subject SID or whatever you want
to call it for AUDIT_SUBJ_*.

--
Stephen Smalley
National Security Agency

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--- David Howells wrote:

> Stephen Smalley wrote:
>
> > Precisely when to use one identity vs. the other though isn't always
> > clear, and the potential for accidental divergence is also a concern.
>
> What should auditing use in audit_filter_rules() when dealing with
> AUDIT_SUBJ_* cases? Should the SUBJ cases use the subjective SID and the
> AUDIT_OBJ_* cases use the objective SID? On the other hand AUDIT_OBJ_* cases
> don't seem to have anything to do with tasks.

I believe that you'll need to audit both sets of credentials.
I think that for audit filtering you will need to have the ability
to filter on either. It's no different from the euid/ruid split.


Casey Schaufler
casey@schaufler-ca.com
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