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SubjectRe: [RFC][PATCH -v2] Smack: Integrate with Audit

--- Stephen Smalley <sds@tycho.nsa.gov> wrote:
>
> On Wed, 2008-03-12 at 04:44 +0200, Ahmed S. Darwish wrote:
> > Hi!,
> >
> > Setup the new Audit hooks for Smack. The AUDIT_SUBJ_USER and
> > AUDIT_OBJ_USER SELinux flags are recycled to avoid `auditd'
> > userspace modifications. Smack only needs auditing on
> > a subject/object bases, so those flags were enough.
>
> Only question I have is whether audit folks are ok with reuse of the
> flags in this manner, and whether the _USER flag is best suited for this
> purpose if you are going to reuse an existing flag (since Smack label
> seems more like a SELinux type than a SELinux user).

To-mate-o toe-maht-o.

There really doesn't seem to be any real reason to create a new
flag just because the granularity is different. The choice between
_USER and _TYPE (and _ROLE for that matter) is arbitrary from a
functional point of view. I say that since Smack has users, but
not types or roles, _USER makes the most sense.

> Certainly will confuse matters if a user has audit filters on SELinux
> users in their /etc/audit/audit.rules and then boots a kernel with Smack
> enabled.

Somehow I doubt that will be their biggest concern.


Casey Schaufler
casey@schaufler-ca.com


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