From: Kees Cook <keescook@chromium.org>
To: Casey Schaufler <casey@schaufler-ca.com>
Cc: Paul Moore <paul@paul-moore.com>,
linux-security-module <linux-security-module@vger.kernel.org>,
James Morris <jmorris@namei.org>,
LKML <linux-kernel@vger.kernel.org>,
SE Linux <selinux@tycho.nsa.gov>,
John Johansen <john.johansen@canonical.com>,
Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
Stephen Smalley <sds@tycho.nsa.gov>,
"linux-fsdevel@vger.kernel.org" <linux-fsdevel@vger.kernel.org>,
Alexey Dobriyan <adobriyan@gmail.com>,
"Schaufler, Casey" <casey.schaufler@intel.com>
Subject: Re: [PATCH 10/10] LSM: Blob sharing support for S.A.R.A and LandLock
Date: Thu, 13 Sep 2018 17:19:04 -0700 [thread overview]
Message-ID: <CAGXu5jJ5__jdBM5X0vVyEU1TKnN4dpkXbj=10iak9RvD1DZk9g@mail.gmail.com> (raw)
In-Reply-To: <5b983bba-049c-795a-3354-a2e8ab33cecf@schaufler-ca.com>
On Thu, Sep 13, 2018 at 5:08 PM, Casey Schaufler <casey@schaufler-ca.com> wrote:
> On 9/13/2018 4:57 PM, Kees Cook wrote:
>> On Thu, Sep 13, 2018 at 4:51 PM, Casey Schaufler <casey@schaufler-ca.com> wrote:
>>> On 9/13/2018 4:06 PM, Kees Cook wrote:
>>>> - what order should any stacking happen? Makefile? security=?
>>> Makefile by default.
>> Okay, if ordering is by Makefile and everyone dislikes my
>> $lsm.enabled=0/1 thing, then these mean the same thing:
>>
>> security=selinux,tomoyo
>> security=tomoyo,selinux
>>
>> i.e. order of security= is _ignored_ in favor of the Makefile ordering.
>
> No, I think that the two lines above should have a different
> execution order. If we really need to specify multiple modules
> at boot time that is what makes the most sense.
>
> It's a matter of mechanics and probably another pass during the
> init process, but it's doable. If we determine it's necessary for
> this stage it is just work.
We already have the minor LSMs that cannot change order. They aren't
part of security= parsing either. To enable/disable LoadPin, you do
"loadpin.enabled=1/0" separate from "security=".
Should "blob-sharing" LSMs be like major LSMs or minor LSMs?
If someone is booting with "security=selinux,tomoyo" and then SARA
lands upstream, does that person have to explicitly add "sara" to
their boot args, since they're doing a non-default list of LSMs?
(I actually prefer the answer being "yes" here, FWIW, I just want to
nail down the expectations.)
-Kees
--
Kees Cook
Pixel Security
next prev parent reply other threads:[~2018-09-14 5:30 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-11 16:26 [PATCH v2 00/10] LSM: Module stacking in support of S.A.R.A and Landlock Casey Schaufler
2018-09-11 16:41 ` [PATCH 01/10] procfs: add smack subdir to attrs Casey Schaufler
2018-09-12 22:57 ` Kees Cook
2018-09-11 16:41 ` [PATCH 02/10] Smack: Abstract use of cred security blob Casey Schaufler
2018-09-12 23:04 ` Kees Cook
2018-09-11 16:41 ` [PATCH 03/10] SELinux: " Casey Schaufler
2018-09-12 23:10 ` Kees Cook
2018-09-11 16:41 ` [PATCH 04/10] LSM: Infrastructure management of the " Casey Schaufler
2018-09-12 23:53 ` Kees Cook
2018-09-13 19:01 ` Casey Schaufler
2018-09-13 21:12 ` Kees Cook
2018-09-11 16:41 ` [PATCH 05/10] SELinux: Abstract use of file " Casey Schaufler
2018-09-12 23:54 ` Kees Cook
2018-09-11 16:42 ` [PATCH 06/10] LSM: Infrastructure management of the " Casey Schaufler
2018-09-13 0:00 ` Kees Cook
2018-09-11 16:42 ` [PATCH 07/10] SELinux: Abstract use of inode " Casey Schaufler
2018-09-13 0:23 ` Kees Cook
2018-09-11 16:42 ` [PATCH 08/10] Smack: " Casey Schaufler
2018-09-13 0:24 ` Kees Cook
2018-09-11 16:42 ` [PATCH 09/10] LSM: Infrastructure management of the inode security Casey Schaufler
2018-09-13 0:30 ` Kees Cook
2018-09-11 16:42 ` [PATCH 10/10] LSM: Blob sharing support for S.A.R.A and LandLock Casey Schaufler
2018-09-13 4:19 ` Kees Cook
2018-09-13 13:16 ` Paul Moore
2018-09-13 15:19 ` Kees Cook
2018-09-13 19:12 ` Paul Moore
2018-09-13 20:58 ` Jordan Glover
2018-09-13 21:50 ` Paul Moore
2018-09-13 22:04 ` Jordan Glover
2018-09-13 23:01 ` Casey Schaufler
2018-09-13 21:01 ` Kees Cook
2018-09-13 21:38 ` Paul Moore
2018-09-13 21:51 ` Kees Cook
2018-09-13 23:06 ` Kees Cook
2018-09-13 23:32 ` John Johansen
2018-09-13 23:51 ` Kees Cook
2018-09-14 0:03 ` Casey Schaufler
2018-09-14 0:06 ` Kees Cook
2018-09-13 23:51 ` Casey Schaufler
2018-09-13 23:57 ` Kees Cook
2018-09-14 0:08 ` Casey Schaufler
2018-09-14 0:19 ` Kees Cook [this message]
2018-09-14 15:57 ` Casey Schaufler
2018-09-14 20:05 ` Kees Cook
2018-09-14 20:47 ` Casey Schaufler
2018-09-14 18:18 ` James Morris
2018-09-14 18:23 ` John Johansen
2018-09-14 0:03 ` Kees Cook
2018-09-14 2:42 ` Paul Moore
2018-09-11 20:43 ` [PATCH v2 00/10] LSM: Module stacking in support of S.A.R.A and Landlock James Morris
2018-09-12 21:29 ` James Morris
2018-09-16 16:54 ` Salvatore Mesoraca
2018-09-16 17:25 ` Casey Schaufler
2018-09-16 17:45 ` Salvatore Mesoraca
2018-09-18 7:44 ` Mickaël Salaün
2018-09-18 15:23 ` Casey Schaufler
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