linux-kernel - Re: Add support for TCG2 log format on UEFI systems

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Message-ID: <20190315114737.GA4066@linux.intel.com>
Date:   Fri, 15 Mar 2019 13:47:37 +0200
From:   Jarkko Sakkinen <jarkko.sakkinen@...ux.intel.com>
To:     Matthew Garrett <mjg59@...gle.com>
Cc:     linux-integrity <linux-integrity@...r.kernel.org>,
        Peter Huewe <peterhuewe@....de>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Roberto Sassu <roberto.sassu@...wei.com>,
        linux-efi <linux-efi@...r.kernel.org>,
        LSM List <linux-security-module@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Thiébaud Weksteen <tweek@...gle.com>
Subject: Re: Add support for TCG2 log format on UEFI systems

On Thu, Mar 14, 2019 at 02:04:02PM -0700, Matthew Garrett wrote:
> On Thu, Mar 14, 2019 at 2:35 AM Jarkko Sakkinen
> <jarkko.sakkinen@...ux.intel.com> wrote:
> >
> > On Wed, Feb 27, 2019 at 12:26:54PM -0800, Matthew Garrett wrote:
> > > Identical to V4, but based on tpmdd-next
> >
> > This is not found /sys/kernel/security/tpm0/ascii_bios_measurements
> 
> That's expected - the existing kernel TCG2 log code doesn't expose
> ascii_bios_measurements, only binary_bios_measurements. This patchset
> doesn't change that.

Oops, I meant to point out that the binary_bios_measurents is not found
(i.e. ascii was a typo). The whole tpm0 directory is missing.

I'll try to pinpoint next week where things might go wrong on my system.

/Jarkko