linux-kernel - Re: [PATCH 2/3] CRED: Split the task security data and move part of it into struct cred

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Date:	Wed, 26 Sep 2007 10:14:47 -0400
From:	Stephen Smalley <sds@...ho.nsa.gov>
To:	David Howells <dhowells@...hat.com>
Cc:	"Serge E. Hallyn" <serge@...lyn.com>, viro@....linux.org.uk,
	hch@...radead.org, Trond.Myklebust@...app.com,
	casey@...aufler-ca.com, linux-kernel@...r.kernel.org,
	selinux@...ho.nsa.gov, linux-security-module@...r.kernel.org,
	linux-audit@...hat.com
Subject: Re: [PATCH 2/3] CRED: Split the task security data and move part
	of it into struct cred

On Wed, 2007-09-26 at 14:30 +0100, David Howells wrote:
> Stephen Smalley <sds@...ho.nsa.gov> 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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