linux-kernel - Re: [RFC PATCH 12/12] IMA: Use the the system trusted keyrings instead of .ima

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Message-ID: <1459439733.2657.41.camel@linux.vnet.ibm.com>
Date:	Thu, 31 Mar 2016 11:55:33 -0400
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	David Howells <dhowells@...hat.com>
Cc:	linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH 12/12] IMA: Use the the system trusted keyrings
 instead of .ima_mok [ver #3]

On Thu, 2016-03-31 at 16:18 +0100, David Howells wrote:
> Mimi Zohar <zohar@...ux.vnet.ibm.com> wrote:

> > > You said you didn't want this option above (to quote: In this patch, the
> > > choice should be between checking just the builtin trusted keys or both the
> > > builtin trusted and secondary keys.)
> > 
> > Does the ability of adding builtin X.509 certificates directly to the
> > IMA keyring already exist or is it something that still needs to be
> > done?   Assuming the latter, this option would be added with the ability
> > of adding X.509 certificates directly to the IMA keyring.
> 
> I don't know what you mean by "directly" here.  Even without this patch, you
> can already add X.509 certs to the .ima keyring, both at compile time

I'm must be missing something obvious here.  I need to review the
patches again.  The builtin keys are loaded onto
the .builtin_trusted_keys keyring, not the IMA keyring.

Mimi

>  and at
> runtime.  This patch doesn't take that away - except by explicitly setting the
> option to prevent runtime addition.
> 
> David
>