linux-kernel - Re: [RFC][PATCH -v2] Smack: Integrate with Audit

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Date:	Wed, 12 Mar 2008 11:09:39 -0700 (PDT)
From:	Casey Schaufler <casey@...aufler-ca.com>
To:	"Ahmed S. Darwish" <darwish.07@...il.com>,
	Stephen Smalley <sds@...ho.nsa.gov>
Cc:	casey@...aufler-ca.com, Andrew Morton <akpm@...ux-foundation.org>,
	James Morris <jmorris@...ei.org>,
	Paul Moore <paul.moore@...com>,
	LKML <linux-kernel@...r.kernel.org>,
	LSM-ML <linux-security-module@...r.kernel.org>,
	Audit-ML <linux-audit@...hat.com>,
	Steve Grubb <sgrubb@...hat.com>
Subject: Re: [RFC][PATCH -v2] Smack: Integrate with Audit


--- "Ahmed S. Darwish" <darwish.07@...il.com> wrote:

> 
> > Perhaps I misunderstand, but Smack labels don't represent users (i.e.
> > user identity) in any way, so it seemed like a mismatch to use the _USER
> > flag there.  Whereas types in SELinux bear some similarity to Smack
> > labels - simple unstructured names whose meaning is only defined by the
> > policy rules.
> > 
> 
> I think Casey meant the common use of Smack where a login program
> (openssh, bin/login, ..) sets a label for each user that logs in, thus
> letting each label effectively representing a user.

No, I really just don't care which name gets used because none
of them map properly but I don't see value in adding a new one.
I say _USER is fine. I dislike _TYPE because it implies structure
that isn't there and I dislike _ROLE because someone may want to
implement roles on top of Smack (it wouldn't be hard) and don't
want to start using that term for a specific meaning that might
give 'em fits.

> 
> In a sense, smack labels share a bit of _USER and _TYPE.

And maybe _ROLE, if you look at it from the right angle.
I don't think that it matters. Create a new _LATEFORDINNER
if that makes y'all feel better. Best of all would be to
stick with _USER and call it done.

Thank you.


Casey Schaufler
casey@...aufler-ca.com
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