Re: rbacsep: collapsing xserver

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On Fri, 2008-05-30 at 08:19 -0500, Xavier Toth wrote:
> On Wed, May 28, 2008 at 1:38 PM, Daniel J Walsh <dwalsh@xxxxxxxxxx> wrote:
> > The current XAce software is far to complex to do anything usefull in my
> > opinion.  We have way too many types and transitions.  We need to
> > simplify down to a lot less types.
> 
> Going back to Dan's concern about the complexity of the X SELinux
> extension and the number of types and transitions I'd like to see some
> discussion/resolution. Eamon what's your position on this topic?

I don't want to speak for Eamon, but I suspect that he would defend the
current setup since he's the one that wrote the policy.  I just
restructured it to fit nicer in refpolicy and actually removed a few
types :)

My position is that its fine as is.  Simplifying it unconditionally
starts to make it less usable for people that actually want fine grained
controls on the desktop.  Making things simpler tends to be easy, since
it tends to be merging types or using attributes for blanket access,
like unconfined does.  The black magic voodoo that happens in the
xserver, that only a select few have previously known about, has only
recently been exposed via the SELinux controls.  I feel that it may be
premature to simplify the policy, since side effects probably aren't
well understood yet.  At least they aren't understood well by me yet.

-- 
Chris PeBenito
Tresys Technology, LLC
(410) 290-1411 x150


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