linux-kernel - Re: [Ksummit-2011-discuss] [PATCH v9 05/13] seccomp_filter: Document what seccomp

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Date:	Mon, 4 Jul 2011 09:09:41 -0700
From:	Greg KH <greg@...ah.com>
To:	Kees Cook <kees.cook@...onical.com>
Cc:	Steven Rostedt <rostedt@...dmis.org>,
	linux-security-module@...r.kernel.org,
	ksummit-2011-discuss@...ts.linux-foundation.org,
	Will Drewry <wad@...omium.org>, linux-doc@...r.kernel.org,
	fweisbec@...il.com, Chris Evans <scarybeasts@...il.com>,
	djm@...drot.org, James Morris <jmorris@...ei.org>,
	Eric Paris <eparis@...hat.com>, linux-kernel@...r.kernel.org,
	Randy Dunlap <rdunlap@...otime.net>, tglx@...utronix.de,
	Ingo Molnar <mingo@...e.hu>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	segoon@...nwall.com
Subject: Re: [Ksummit-2011-discuss] [PATCH v9 05/13] seccomp_filter: Document
 what seccomp_filter is and how it works.

On Fri, Jul 01, 2011 at 01:25:38PM -0700, Kees Cook wrote:
> On Fri, Jul 01, 2011 at 02:04:08PM -0400, Steven Rostedt wrote:
> > On Fri, 2011-07-01 at 11:43 -0500, Will Drewry wrote:
> > > On Fri, Jul 1, 2011 at 11:10 AM, Ingo Molnar <mingo@...e.hu> wrote:
> > 
> > > I'd like to be able to move along security for the platform today and
> > > not in two years, but if my only chance of any form of this being
> > > ACK'd is to write it such that it shares code with perf and has a
> > > shiny new ABI, then I'll queue up the work for when I can start trying
> > > to tackle it.
> > 
> > As this seems to be dragging on, and does not look to be solved by
> > October, I would like to propose this topic for the Kernel Summit in
> > Prague. I believe all parties involved may be there, and if not, I will
> > push hard to get them there.
> > 
> > Email is not always the best median for discussions. Face to face can
> > usually solve things much quicker.
> 
> How about we put it in as-is and mark it experimental, and then folks
> can discuss improvements to it in Oct after all the API users have had
> a chance to play with it? Four months seems like a needless delay to me.
> I respect the objections, but it doesn't seem to balance against the
> demonstrated need for this feature when faced with a viable working patch
> series.

We can't add something and then remove it if userspace programs are
depending on it, sorry.
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