auditctl se_sen & se_clr

[James Antill]

On Fri, 2006-05-19 at 12:44 -0500, Michael C Thompson wrote:
> James Antill wrote:
> > On Fri, 2006-05-19 at 10:30 -0500, Michael C Thompson wrote:
> > 
> >> Thanks, that's what I thought as well. Here is my result of testing this:
> >>
> >> root linux user, id:
> >> context=root:staff_r:staff_t:SystemLow-SystemHigh
> >>
> >> mcthomps linux user, id:
> >> context=user_u:user_r:user_t:SystemLow
> >>
> >> When I have the following audit rule is
> >>    auditctl -a entry,always -S chmod -F se_clr=s0
> >> the chmod actions taken by mcthomps get logged, but not those done by 
> >> root (this is as expected).
> > 
> >  This means that a "range" of s0 is being interpreted as:
> > 
> > se_sen=''
> > se_clr='s0'
> > 
> > ...which isn't what I'd expect, but given that...
> 
> I'm sorry, I do not follow what you mean here.

 The mls range for root is s0-s0:c0.c255, where:

 se_sen = s0
 se_clr = s0:c0.c255

 The mls range for mcthomps is s0, given the above works then:

 se_clr = s0

...and given the range is s0 and not s0-s0 then se_sen must be blank
(and so won't match s0).

-- 
James Antill
<james.antill at redhat.com>

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