linux-kernel - Re: [RFC v2 6/6] firmware: add firmware signature checking support

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Message-ID: <20150513184623.GR23057@wotan.suse.de>
Date:	Wed, 13 May 2015 20:46:23 +0200
From:	"Luis R. Rodriguez" <mcgrof@...e.com>
To:	"Luis R. Rodriguez" <mcgrof@...not-panic.com>
Cc:	ming.lei@...onical.com, rusty@...tcorp.com.au,
	torvalds@...ux-foundation.org, dhowells@...hat.com,
	seth.forshee@...onical.com, linux-kernel@...r.kernel.org,
	pebolle@...cali.nl, linux-wireless@...r.kernel.org,
	gregkh@...uxfoundation.org, jlee@...e.com, tiwai@...e.de,
	casey@...aufler-ca.com, keescook@...omium.org, mjg59@...f.ucam.org,
	akpm@...ux-foundation.org, Kyle McMartin <kyle@...nel.org>
Subject: Re: [RFC v2 6/6] firmware: add firmware signature checking support

On Wed, May 13, 2015 at 11:23:56AM -0700, Luis R. Rodriguez wrote:
> From: "Luis R. Rodriguez" <mcgrof@...e.com>
> 
> As with module signing, we do a very simple search for a
> particular string appended to the firmware. There's both a
> config option and a boot parameter which control whether we
> accept or fail with unsigned firmware and firmware that are
> signed with an unknown key.
> 
> If firmware signing is enabled, the kernel will be tainted
> if a firmware is loaded that is unsigned or has a signature
> for which we don't have the key.

Sorry this commit log is obviously still from the v1, the cover
letter addresses the changes best...

 Luis
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