linux-kernel - Re: [PATCHv3 1/6] integrity: define '.evm' as a builtin 'trusted' keyring

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Message-ID: <1445625833.2459.360.camel@linux.vnet.ibm.com>
Date:	Fri, 23 Oct 2015 14:43:53 -0400
From:	Mimi Zohar <zohar@...ux.vnet.ibm.com>
To:	Petko Manolov <petkan@...-labs.com>
Cc:	Dmitry Kasatkin <dmitry.kasatkin@...il.com>,
	linux-ima-devel@...ts.sourceforge.net,
	linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Dmitry Kasatkin <dmitry.kasatkin@...wei.com>
Subject: Re: [PATCHv3 1/6] integrity: define '.evm' as a builtin 'trusted'
 keyring

On Fri, 2015-10-23 at 16:05 +0300, Petko Manolov wrote:
> On 15-10-22 21:49:25, Dmitry Kasatkin wrote:

> > diff --git a/security/integrity/ima/Kconfig b/security/integrity/ima/Kconfig
> > index df30334..a292b88 100644
> > --- a/security/integrity/ima/Kconfig
> > +++ b/security/integrity/ima/Kconfig
> > @@ -123,14 +123,17 @@ config IMA_APPRAISE
> >  	  If unsure, say N.
> >  
> >  config IMA_TRUSTED_KEYRING
> > -	bool "Require all keys on the .ima keyring be signed"
> > +	bool "Require all keys on the .ima keyring be signed (deprecated)"
> >  	depends on IMA_APPRAISE && SYSTEM_TRUSTED_KEYRING
> >  	depends on INTEGRITY_ASYMMETRIC_KEYS
> > +	select INTEGRITY_TRUSTED_KEYRING
> >  	default y
> >  	help
> >  	   This option requires that all keys added to the .ima
> >  	   keyring be signed by a key on the system trusted keyring.
> >  
> > +	   This option is deprecated in favor of INTEGRITY_TRUSTED_KEYRING
> > +
> >  config IMA_LOAD_X509
> >  	bool "Load X509 certificate onto the '.ima' trusted keyring"
> >  	depends on IMA_TRUSTED_KEYRING
> 
> 
> I guess we may as well remove this switch.  Otherwise somebody have to remember 
> to post a patch that does so a few kernel releases after this one goes mainline.

There's no harm in leaving the "IMA_TRUSTED_KEYRING" Kconfig option for
a couple of releases (or perhaps until it is enabled in a long term
release), so that the INTEGRITY_TRUSTED_KEYRING Kconfig option is
enabled automatically.

Mimi

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