linux-kernel - Re: [RFC 0/3] WhiteEgret LSM module

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Message-ID: <CABxV-EVd+i7U2ohb4yJGwk6BQ9XOFTO--yS2S_VCGp-oK3GZuQ@mail.gmail.com>
Date:   Fri, 2 Jun 2017 23:28:02 +0300
From:   Steve Kemp <steve.backup.kemp@...glemail.com>
To:     Casey Schaufler <casey@...aufler-ca.com>
Cc:     linux-security-module <linux-security-module@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [RFC 0/3] WhiteEgret LSM module

On Fri, Jun 2, 2017 at 10:00 PM, Casey Schaufler <casey@...aufler-ca.com> wrote:

> A 'user' attribute can be set by the file owner. A 'security'
> attribute requires privilege. SELinux and Smack use 'security'
> attributes to prevent users from mucking with them. You need
> to create module hooks for manipulating them,

That's nice and clear, I appreciate you explaining it to me.

I'll have a go at updating my toy LSM to do that shortly.  For
reference I placed the patch here, but don't expect to submit it
formally to lkmk as it was more an interesting learning experience:

https://github.com/skx/linux/pull/1

(I did take the time to rename it from steve_lsm.c to whitelist_lsm.c
though, lest I look too vain!)

Steve
-- 
https://steve.fi/