From: Bill Davidsen <davidsen@tmr.com>
To: Kyle Moffett <mrmacman_g4@mac.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Stephen Smalley <sds@tycho.nsa.gov>,
James Morris <jmorris@namei.org>,
Andrew Morton <akpm@linux-foundation.org>,
casey@schaufler-ca.com, linux-security-module@vger.kernel.org,
linux-kernel@vger.kernel.org,
"Serge E. Hallyn" <serge@hallyn.com>
Subject: Re: [PATCH] Version 3 (2.6.23-rc8) Smack: Simplified Mandatory Access Control Kernel
Date: Sat, 06 Oct 2007 15:14:30 -0400 [thread overview]
Message-ID: <4707DE96.4090400@tmr.com> (raw)
In-Reply-To: <15E46546-914A-4A1E-BB0B-642FDA17396B@mac.com>
Kyle Moffett wrote:
> On Oct 04, 2007, at 21:44:02, Eric W. Biederman wrote:
>> What we want from the LSM is the ability to say -EPERM when we can
>> clearly articulate that we want to disallow something.
>
> This sort of depends on perspective; typically with security
> infrastructure you actually want "... the ability to return success when
> we can clearly articulate that we want to *ALLOW* something". File
> permissions work this way; we don't have a list of forbidden users
> attached to each file, we have an owner, a group, and a mode
> representing positive permissions. With that said in certain high-risk
> environments you need something even stronger that cannot be changed by
> the "owner" of the file, if we don't entirely trust them,
>
Other than ACLs, of course, which do allow blacklisting individual users.
--
Bill Davidsen <davidsen@tmr.com>
"We have more to fear from the bungling of the incompetent than from
the machinations of the wicked." - from Slashdot
next prev parent reply other threads:[~2007-10-06 19:10 UTC|newest]
Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-30 0:20 [PATCH] Version 3 (2.6.23-rc8) Smack: Simplified Mandatory Access Control Kernel Casey Schaufler
2007-09-30 8:16 ` Andrew Morton
2007-09-30 8:42 ` Andi Kleen
2007-09-30 17:14 ` Casey Schaufler
2007-09-30 17:34 ` Andi Kleen
2007-09-30 23:24 ` david
2007-09-30 17:29 ` Joshua Brindle
2007-09-30 17:39 ` Andi Kleen
2007-09-30 19:07 ` Theodore Tso
2007-09-30 20:05 ` Andi Kleen
2007-09-30 20:22 ` Theodore Tso
2007-10-01 20:28 ` Casey Schaufler
2007-09-30 20:18 ` Paul Moore
2007-09-30 9:53 ` Christoph Hellwig
2007-09-30 17:19 ` Casey Schaufler
2007-10-02 8:36 ` Thomas Bleher
2007-09-30 17:02 ` Casey Schaufler
2007-09-30 20:30 ` Paul Moore
2007-10-01 11:33 ` James Morris
2007-10-01 15:07 ` Linus Torvalds
2007-10-01 15:40 ` Stephen Smalley
2007-10-01 16:04 ` Linus Torvalds
2007-10-01 17:54 ` Olivier Galibert
2007-10-02 21:02 ` Bill Davidsen
2007-10-02 21:20 ` Linus Torvalds
2007-10-02 23:25 ` Linus Torvalds
2007-10-03 0:12 ` Alan Cox
2007-10-04 22:56 ` Derek Fawcus
2007-10-04 23:18 ` Chuck Ebbert
2007-10-04 23:44 ` Derek Fawcus
2007-10-03 5:32 ` Crispin Cowan
2007-10-03 3:54 ` Bill Davidsen
2007-10-03 4:52 ` Linus Torvalds
2007-10-05 1:44 ` Eric W. Biederman
2007-10-05 3:04 ` Kyle Moffett
2007-10-05 4:45 ` Eric W. Biederman
2007-10-05 5:48 ` Kyle Moffett
2007-10-05 16:27 ` Casey Schaufler
2007-10-05 18:42 ` Stephen Smalley
2007-10-05 20:08 ` Casey Schaufler
2007-10-05 20:11 ` Eric W. Biederman
2007-10-08 17:50 ` Casey Schaufler
2007-10-08 18:47 ` Eric W. Biederman
2007-10-08 18:53 ` Serge E. Hallyn
2007-10-08 21:05 ` Casey Schaufler
2007-10-08 16:18 ` Serge E. Hallyn
2007-10-08 17:31 ` Casey Schaufler
2007-10-09 13:52 ` Stephen Smalley
2007-10-09 16:02 ` Casey Schaufler
2007-10-08 23:24 ` Bill Davidsen
2007-10-08 16:06 ` Serge E. Hallyn
2007-10-08 17:20 ` Eric W. Biederman
2007-10-08 18:00 ` Serge E. Hallyn
2007-10-08 19:29 ` Eric W. Biederman
2007-10-08 19:50 ` Eric W. Biederman
2007-10-08 20:39 ` Casey Schaufler
2007-10-08 21:02 ` Eric W. Biederman
2007-10-08 21:20 ` Alan Cox
2007-10-10 13:48 ` Eric W. Biederman
2007-10-10 15:45 ` Stephen Smalley
2007-10-10 17:57 ` Casey Schaufler
2007-10-11 10:46 ` Kyle Moffett
2007-10-11 15:41 ` Casey Schaufler
2007-10-11 18:53 ` Kyle Moffett
2007-10-11 20:09 ` Alan Cox
2007-10-08 21:51 ` Crispin Cowan
2007-10-30 4:01 ` Kazuki Omo(Company)
2007-10-30 15:07 ` Casey Schaufler
2007-10-08 20:25 ` Casey Schaufler
2007-10-08 20:57 ` Eric W. Biederman
2007-10-06 19:14 ` Bill Davidsen [this message]
2007-10-03 0:10 ` Alan Cox
2007-10-03 0:18 ` Linus Torvalds
2007-10-01 16:39 ` Casey Schaufler
2007-10-01 19:00 ` Theodore Tso
2007-10-01 15:38 ` Casey Schaufler
2007-10-01 20:49 ` Jan Engelhardt
2007-10-01 3:47 ` Serge E. Hallyn
2007-10-01 4:15 ` Casey Schaufler
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