linux-kernel - Re: [RFC][PATCH v1 0/2] integrity: module integrity verification

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Message-ID: <CALLzPKZRUTaOE8afXD1b=Kd6fOaisOpAW+XGJMi7uHdE0sEgFw@mail.gmail.com>
Date:	Tue, 7 Feb 2012 23:18:38 +0200
From:	"Kasatkin, Dmitry" <dmitry.kasatkin@...el.com>
To:	Rusty Russell <rusty@...abs.org>
Cc:	James Morris <jmorris@...ei.org>,
	linux-security-module@...r.kernel.org,
	linux-kernel@...r.kernel.org, zohar@...ux.vnet.ibm.com,
	David Howells <dhowells@...hat.com>
Subject: Re: [RFC][PATCH v1 0/2] integrity: module integrity verification

On Tue, Feb 7, 2012 at 7:13 PM, Rusty Russell <rusty@...abs.org> wrote:
> On Mon, 6 Feb 2012 08:59:00 +0200, "Kasatkin, Dmitry" <dmitry.kasatkin@...el.com> wrote:
>> On Mon, Feb 6, 2012 at 3:51 AM, James Morris <jmorris@...ei.org> wrote:
>> > On Wed, 1 Feb 2012, Dmitry Kasatkin wrote:
>> >
>> >> Hi,
>> >>
>> >> Here is another module verification patchset, which is based on the recently
>> >> upstreamed digital signature support used by EVM and IMA-appraisal.
>> >
>> > You should cc: Rusty on any changes to the module code.
>> >
>>
>> Hello,
>>
>> Mimi already has pointed that out.
>> I have sent him an email with the link..
>
> Thanks.
>
> Using an external signature (via cmdline arguments) is simple, at
> least.  Not sure what the userspace side of this looks like?
>

Hello,

There are couple of patches for modprobe and insmod...

You could see them on the top at:
http://linux-ima.git.sourceforge.net/git/gitweb.cgi?p=linux-ima/module-init-tools.git;a=summary

It first tries to read signature from xattr, then from file...
"modprobe -v" will show 'ima='  parameter with signature.

- Dmitry


> Cheers,
> Rusty.
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