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From: Lee Revell <rlrevell@joe-job.com>
To: William Lee Irwin III <wli@holomorphy.com>
Cc: Chris Wright <chrisw@osdl.org>,
	kronos@kronoz.cjb.net,
	linux-kernel <linux-kernel@vger.kernel.org>,
	joq@io.com, torbenh@gmx.de
Subject: Re: [PATCH] Realtime LSM
Date: Mon, 13 Sep 2004 23:46:14 -0400	[thread overview]
Message-ID: <1095133574.1752.9.camel@krustophenia.net> (raw)
In-Reply-To: <20040914030126.GV9106@holomorphy.com>

On Mon, 2004-09-13 at 23:01, William Lee Irwin III wrote:
> On Mon, 2004-09-13 at 19:34, Chris Wright wrote:
> >> The mlock() bit is unecessary now.  Use rlimits on the audio users.
> >> Which leaves realtime bits, plus others.  I had a more generic module
> >> (per-capability) that would be a superset of this.  Perhaps that's a
> >> better fit.  I'm travelling this week, so forgive the spotty replies.
> 
> On Mon, Sep 13, 2004 at 10:18:06PM -0400, Lee Revell wrote:
> > I think this would be fine.  All we need is a way to allow users to run
> > SCHED_FIFO processes and use mlockall() without being root and without
> > having to patch the kernel.  It's a pretty simple requirement.
> 
> Please construct a entitlement/permission checking scheme for this that
> is not so lax as removing permissions checks altogether conditionally
> on some sysctl.

This is how it works now.  You would typically do 'modprobe realtime
gid=29' and add audio users to that group.  How is this any less secure
than the traditional user/group/other permissions model?

Lee


  reply	other threads:[~2004-09-14  3:50 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-09-12  5:46 [PATCH] Realtime LSM Lee Revell
2004-09-12 13:58 ` James Morris
2004-09-12 14:05   ` James Morris
2004-09-12 19:03   ` Lee Revell
2004-09-12 19:16   ` Jack O'Quin
2004-09-16  2:31     ` Jody McIntyre
2004-09-16  4:48       ` Jack O'Quin
2004-09-16 15:51         ` Jody McIntyre
2004-09-16 18:27           ` Jack O'Quin
2004-09-17  7:08             ` torbenh
2004-09-17 20:01               ` Jack O'Quin
2004-09-20 20:20                 ` Jody McIntyre
2004-09-12 15:50 ` Kronos
2004-09-13 23:22   ` Lee Revell
2004-09-13 23:34     ` Chris Wright
2004-09-14  2:18       ` Lee Revell
2004-09-14  3:01         ` William Lee Irwin III
2004-09-14  3:46           ` Lee Revell [this message]
2004-09-14  3:50             ` William Lee Irwin III
2004-09-20 20:23 ` Jody McIntyre
2004-09-21  0:11   ` Jack O'Quin
2004-09-21  7:52     ` torbenh
2004-09-30 21:14   ` Jody McIntyre
2004-09-30 21:53     ` Lee Revell
2004-10-01  0:37       ` Jack O'Quin
2004-10-01  1:20         ` Chris Wright
2004-10-01  4:05           ` Jack O'Quin
2004-10-01 20:40             ` Lee Revell
2004-10-01 21:23               ` Chris Wright
2004-10-01 22:19                 ` Lee Revell
2004-10-01 22:27                   ` Chris Wright
2004-10-01 22:32                     ` Lee Revell
2004-10-01 22:44                       ` Chris Wright
2004-10-05  5:55                     ` Jack O'Quin
2004-10-07 23:51                       ` Lee Revell
2004-10-08 20:58                         ` Lee Revell
2004-10-08 21:21                           ` Andrew Morton
2004-10-08 21:22                             ` Lee Revell
2004-10-08 21:25                             ` Lee Revell
2004-10-08 21:45                           ` Chris Wright
2004-10-08 21:49                             ` Lee Revell
2004-10-08 21:52                               ` Chris Wright
2004-10-08 22:05                                 ` Lee Revell
2004-10-08 22:09                                   ` Chris Wright
2004-10-08 22:19                                   ` Chris Wright
2004-10-08 22:24                                     ` Chris Wright
2004-10-08 23:05                                       ` Lee Revell
2004-10-08 23:12                                         ` Chris Wright
2004-10-08 23:15                                           ` Lee Revell
2004-10-08 23:20                                             ` Chris Wright
2004-10-09  1:01                                       ` Jack O'Quin
2004-10-09  5:16                                         ` Chris Wright
2004-10-09 16:16                                           ` Jack O'Quin
2004-10-09 19:11                                             ` Chris Wright
2004-10-09 20:27                                               ` Jack O'Quin
2004-10-09 22:53                                                 ` Chris Wright
2004-10-22 23:59                                                   ` Jack O'Quin
2004-10-23  0:36                                                     ` Lee Revell
2004-10-23  1:23                                                     ` Jack O'Quin
2004-10-23  1:27                                                       ` Lee Revell
2004-10-23  5:08                                                         ` Jack O'Quin
2004-10-23 18:17                                                           ` Jack O'Quin
2004-10-25  2:03                                                             ` Jack O'Quin
2004-10-23 20:04                                                     ` Chris Wright
2004-10-05  4:00     ` Jack O'Quin
2004-10-15  1:55     ` Rusty Russell
2004-10-15  2:08       ` Lee Revell
     [not found] <87acu0p0nw.fsf@sulphur.joq.us>
2004-11-09 22:39 ` Jack O'Quin
2004-11-20  2:44   ` Lee Revell
2004-11-20  3:55   ` Lee Revell
2004-11-20  6:19     ` Jack O'Quin
2004-11-20  6:43       ` Lee Revell

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