Re: [patch 1/3] lsm: add bsdjail module

Chris Wright
2004-10-07T17:00:52Z

* Andrew Morton (akpm@osdl.org) wrote:
> James Morris <jmorris@redhat.com> wrote:
> > On Thu, 7 Oct 2004, Serge E. Hallyn wrote:
> >
> > > Because it gives Linux a functionality like FreeBSD's jail and Solaris'
> > > zones in an unobtrusive manner, without impacting users who don't wish
> > > to use it (except for the extra security_task_lookup function calls).
> >
> > Yes, as an LSM module, it can be configured out. I think it's a good use
> > of the LSM framework, and may be useful for people migrating to Linux from
> > legacy Solaris and FreeBSD.
>
> Sure, but that's a bit speculative for adding a feature to the mainline
> kernel.

Which feature are you concerned over, the additional hook or the
new module? The module is a no-op for anybody who doesn't want it.
I can't vouch for the number of users of this module although I've seen
some positive feedback from users. One nice bit is that it goes a way
towards helping vserver which does have quite a few users. This module
really demonstrates one of the points of LSM...to support multiple
security models.

thanks,
-chris
--
Linux Security Modules http://lsm.immunix.org http://lsm.bkbits.net