Re: [PATCH 0/4] AppArmor: refactor securityfs to use structures

[Kees Cook <kees@ubuntu.com>]

Hi Casey,

On Fri, Jan 27, 2012 at 10:54:12AM -0800, Casey Schaufler wrote:
> On 1/26/2012 4:29 PM, Kees Cook wrote:
> >This is the ground-work for expanding the AppArmor securityfs to include
> >useful information that the userspace tools can more easily interact with.
> >Presently, this is only static information about the state of AppArmor.
> 
> If you're making changes for securityfs do you suppose that
> you might do all of us LSM developers a huge favor and add an
> entry that reports the active LSM? It's something that has been
> on my todo list for ages and would make everyone's life so much
> easier. /sys/kernel/security/LSM which contains the name of the
> active LSM would be very handy.

Should that appear in the securityfs? Normally one can just mount it
and look to see what's in there. And, I'm nervous to add a file here
without a good LSM stacking plan yet. I'd hate to create another interface
that needs to be redefined later. :)

-Kees

-- 
Kees Cook