problems with tmpfs and relabeling

Bill Nottingham notting at redhat.com
Wed Apr 26 15:19:26 UTC 2006


Stephen Smalley (sds at tycho.nsa.gov) said: 
> On Fri, 2006-04-21 at 07:51 -0400, Stephen Smalley wrote:
> > On Thu, 2006-04-20 at 14:38 -0400, Bill Nottingham wrote:
> > Possibly stupid question:  Will files be created dynamically in these
> > tmpfs mounts at runtime?  Do you expect them to follow the traditional
> > inherit-from-parent-directory behavior you get from ext3?  
> 
> Sorry, not enough caffeine here.  They already do follow that behavior
> (via inode_init_security hook call from tmpfs).  Only problem here is
> getting the right label on the root directory inode in the first place,
> which likely just requires allowing restorecon to fix it up, as is done
> for /dev as well.  This does suggest however that a rootcontext= option
> to mount would be helpful.

Sorry to be dense, but if I were to be writing down what specifically needs
done, that would be:

- rootcontext= support in mount?
- a way to get the root label inode right on tmpfs (is this a policy
  or kernel change?)

Just trying to clearly articulate what I'm blocking on.

Bill




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