linux-kernel - Re: [RFC][PATCH] Privilege dropping security module

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Message-ID: <b452e0d0387e9350a5f8bb7fac242194.squirrel@webmail.xs4all.nl>
Date:	Mon, 28 Sep 2009 07:38:55 +0200
From:	"Rob Meijer" <capibara@...all.nl>
To:	"Andy Spencer" <andy753421@...il.com>
Cc:	"Casey Schaufler" <casey@...aufler-ca.com>,
	linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC][PATCH] Privilege dropping security module

On Sat, September 26, 2009 23:35, Andy Spencer wrote:
>> It's amazing who much of this stuff there is to attend to.  If you
>> haven't, run checkpatch.py on your patches. You'll need to pass that
>> eventually.
>
> I've fixed the remaining things that checkpatch.pl suggests as well as a
> few others and will include those checks for future patches.
>
>
>> Hmm. You are working with the Linux DAC mechanism, even if only within
>> a process tree. You're not dropping privilege, you're applying a mask
>> to the file permission bits, currently for file system objects, and
>> with other objects (sysvipc at least) in the future. Hmm. modemask?
>> Something derived from "restricted process tree?"
>
> `Access Control Masking' or `Policy Masking' perhaps?
>

Or  'Permission Attenuation' ?

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