linux-kernel - Re: [PATCH security-next v4 23/32] selinux: Remove boot parameter

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Message-ID: <CAGXu5j+oPR58oJ06-n7e96-Rmu+ywTW0hud5LhOZ_3UXG5s12w@mail.gmail.com>
Date:   Wed, 3 Oct 2018 11:20:44 -0700
From:   Kees Cook <keescook@...omium.org>
To:     James Morris <jmorris@...ei.org>
Cc:     John Johansen <john.johansen@...onical.com>,
        Jordan Glover <Golden_Miller83@...tonmail.ch>,
        Stephen Smalley <sds@...ho.nsa.gov>,
        Paul Moore <paul@...l-moore.com>,
        Casey Schaufler <casey@...aufler-ca.com>,
        Tetsuo Handa <penguin-kernel@...ove.sakura.ne.jp>,
        "Schaufler, Casey" <casey.schaufler@...el.com>,
        linux-security-module <linux-security-module@...r.kernel.org>,
        Jonathan Corbet <corbet@....net>,
        "open list:DOCUMENTATION" <linux-doc@...r.kernel.org>,
        linux-arch <linux-arch@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH security-next v4 23/32] selinux: Remove boot parameter

On Wed, Oct 3, 2018 at 11:17 AM, James Morris <jmorris@...ei.org> wrote:
> On Tue, 2 Oct 2018, John Johansen wrote:
>> To me a list like
>>   lsm.enable=X,Y,Z
>
> What about even simpler:
>
> lsm=selinux,!apparmor,yama

We're going to have lsm.order=, so I'd like to keep it with a dot
separator (this makes it more like module parameters, too). You want
to mix enable/disable in the same string? That implies you'd want
implicit enabling (i.e. it complements the builtin enabling), which is
opposite from what John wanted.

-Kees

-- 
Kees Cook
Pixel Security