[Linux-cachefs] Re: [PATCH 00/16] Permit filesystem local caching [try #3]

[Casey Schaufler]

--- Stephen Smalley <sds at tycho.nsa.gov> wrote:

> On Tue, 2007-08-14 at 08:53 -0700, Casey Schaufler wrote:
> > --- David Howells <dhowells at redhat.com> wrote:
> > 
> > > Casey Schaufler <casey at schaufler-ca.com> wrote:
> > > 
> > > > With Smack you can leave the label alone, raise CAP_MAC_OVERRIDE,
> > > > do your business of setting the label correctly, and then drop
> > > > the capability. No new hooks required.
> > > 
> > > That sounds like a contradiction.  How can you both leave it alone and
> set
> > > it?
> > 
> > Whoops, sorry. You leave the process label alone and explicitly
> > set the file label using the xattr interfaces.
> 
> xattr interfaces don't help with the initial labeling of the file when
> it is created.

That's true. The deamon needs to run with an appropriate label.
I don't believe that this is situation with a really simple solution
because the activity being performed is unusual. 
 
> -- 
> Stephen Smalley
> National Security Agency
> 
> 
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Casey Schaufler
casey at schaufler-ca.com