linux-kernel - Re: [GIT PULL] MODSIGN: Use PKCS#7 for module signatures [ver #7a]

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Message-ID: <alpine.LRH.2.20.1508122029080.17160@namei.org>
Date:	Wed, 12 Aug 2015 20:30:10 +1000 (AEST)
From:	James Morris <jmorris@...ei.org>
To:	David Woodhouse <dwmw2@...radead.org>
cc:	David Howells <dhowells@...hat.com>, mcgrof@...il.com,
	Mimi Zohar <zohar@...ux.vnet.ibm.com>,
	linux-kernel@...r.kernel.org, linux-security-module@...r.kernel.org
Subject: Re: [GIT PULL] MODSIGN: Use PKCS#7 for module signatures [ver #7a]

On Wed, 12 Aug 2015, David Woodhouse wrote:

> On Wed, 2015-08-12 at 20:08 +1000, James Morris wrote:
> > make-3.81-20.el6.x86_64
> > 
> > The machine is not accessible, sorry.
> 
> No matter. I have a CentOS 6 VM in which I can attempt to reproduce.
> 
> > Where is MODULE_SIG_KEY_FILENAME assigned?
> 
> At about line 243:
> 
> $(eval $(call config_filename,MODULE_SIG_KEY))
> 
> Or, more to the point, somewhere in here... you may now understand why
> I made a new jug of coffee. I had torture-tested this with fairly much
> every pathology I could think of. And you've managed to break it with
> the *default* case. Congratulations. You just made me cry.

You made me read Make documentation -- I think we're even.

> #
> define config_filename =

This may be relevant:

http://stackoverflow.com/questions/13260396/gnu-make-3-81-eval-function-not-working


-- 
James Morris
<jmorris@...ei.org>

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