Date: Sun, 15 Nov 2009 14:13:56 -0800 (PST)
From: david@lang.hm
To: Andi Kleen <andi@firstfloor.org>
cc: Pekka Enberg <penberg@cs.helsinki.fi>,
       John Johansen <john.johansen@canonical.com>,
       linux-kernel@vger.kernel.org, linux-security-module@vger.kernel.org
Subject: Re: [PATCH 07/12] AppArmor: userspace interfaces
In-Reply-To: <87pr7qjpn8.fsf@basil.nowhere.org>
Message-ID: <alpine.DEB.2.00.0911151413280.6163@asgard.lang.hm>
References: <1257869585-7092-1-git-send-email-john.johansen@canonical.com> <1257869585-7092-8-git-send-email-john.johansen@canonical.com> <84144f020911100829k515c7f73w84df942162a49a30@mail.gmail.com> <87pr7qjpn8.fsf@basil.nowhere.org>
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On Tue, 10 Nov 2009, Andi Kleen wrote:

> Pekka Enberg <penberg@cs.helsinki.fi> writes:
>
>> On Tue, Nov 10, 2009 at 6:13 PM, John Johansen
>> <john.johansen@canonical.com> wrote:
>>> The current apparmorfs interface is compatible with previous versions
>>> of AppArmor. ?The plans are to deprecate it (hence the config option
>>> APPARMOR_COMPAT_24) and replace it with a more sysfs style single
>>> entry per file interface.
>>
>> We don't usually merge compatibility code to handle ABIs that were
>> developed out-of-tree. Why should we treat AppArmor differently?
>
> I would say that always depends on the deployed base of the old ABI.
> If there's a lot of users who would get broken I think there's a
> good case for merging compat code (I don't know if that is or
> isn't the case here).
>
> A widely used distribution release with the old user land would
> probably count.

ubuntu has shipped with AppArmor for the last few releases.

David Lang
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