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From: Mimi Zohar <zohar@linux.ibm.com>
To: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
	Roberto Sassu <roberto.sassu@huawei.com>
Cc: david.safford@ge.com, monty.wiseman@ge.com,
	linux-integrity@vger.kernel.org,
	linux-security-module@vger.kernel.org,
	linux-kernel@vger.kernel.org, silviu.vlasceanu@huawei.com
Subject: Re: [PATCH v6 4/7] tpm: modify tpm_pcr_read() definition to pass a TPM hash algorithm
Date: Wed, 05 Dec 2018 15:31:44 -0500	[thread overview]
Message-ID: <1544041904.4017.8.camel@linux.ibm.com> (raw)
In-Reply-To: <20181204234024.GC1233@linux.intel.com>

On Tue, 2018-12-04 at 15:40 -0800, Jarkko Sakkinen wrote:
> On Tue, Dec 04, 2018 at 09:21:35AM +0100, Roberto Sassu wrote:
> > Currently the TPM driver allows other kernel subsystems to read only the
> > SHA1 PCR bank. This patch modifies the parameters of tpm_pcr_read() and
> > tpm2_pcr_read() to pass a tpm_digest structure, which contains the desired
> > hash algorithm. Also, since commit 125a22105410 ("tpm: React correctly to
> > RC_TESTING from TPM 2.0 self tests") removed the call to tpm2_pcr_read(),
> > the new parameter is expected to be always not NULL.
> > 
> > Due to the API change, IMA functions have been modified.
> > 
> > Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
> > Acked-by: Mimi Zohar <zohar@linux.ibm.com>
> 
> Reviewed-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
> 
> Mimi, Nayna, can you help with testing this (because of the IMA change)?

It's up & running and the measurement list verifies against the TPM
PCR.  Although this system has two algorithms enabled, all of the PCRs
are allocated for one algorithm and none for the other.  I'm still
looking around for another system with PCR 10 enabled for multiple
algorithms.

Mimi


  reply	other threads:[~2018-12-05 20:31 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-04  8:21 [PATCH v6 0/7] tpm: retrieve digest size of unknown algorithms from TPM Roberto Sassu
2018-12-04  8:21 ` [PATCH v6 1/7] tpm: dynamically allocate the allocated_banks array Roberto Sassu
2018-12-04 23:18   ` Jarkko Sakkinen
2018-12-06 17:56     ` Roberto Sassu
2018-12-12 18:32       ` Jarkko Sakkinen
2018-12-13  8:14         ` Roberto Sassu
2018-12-11 21:01     ` Ken Goldman
2018-12-04  8:21 ` [PATCH v6 2/7] tpm: add _head suffix to tcg_efi_specid_event and tcg_pcr_event2 Roberto Sassu
2018-12-04 23:26   ` Jarkko Sakkinen
2018-12-09 12:10   ` Nayna Jain
2018-12-04  8:21 ` [PATCH v6 3/7] tpm: rename and export tpm2_digest and tpm2_algorithms Roberto Sassu
2018-12-04  8:21 ` [PATCH v6 4/7] tpm: modify tpm_pcr_read() definition to pass a TPM hash algorithm Roberto Sassu
2018-12-04 23:40   ` Jarkko Sakkinen
2018-12-05 20:31     ` Mimi Zohar [this message]
2018-12-06 19:49       ` Mimi Zohar
2018-12-07 14:51         ` Roberto Sassu
2018-12-09 20:32           ` Mimi Zohar
2018-12-10  7:55             ` Roberto Sassu
2018-12-06  8:14     ` Nayna Jain
2018-12-12 18:29       ` Jarkko Sakkinen
2018-12-09 12:04     ` Nayna Jain
2018-12-04  8:21 ` [PATCH v6 5/7] tpm: retrieve digest size of unknown algorithms with PCR read Roberto Sassu
2018-12-04 23:53   ` Jarkko Sakkinen
2018-12-06 18:00     ` Roberto Sassu
2018-12-12 18:16       ` Jarkko Sakkinen
2018-12-04  8:21 ` [PATCH v6 6/7] tpm: ensure that the output of PCR read contains the correct digest size Roberto Sassu
2018-12-05  0:09   ` Jarkko Sakkinen
2018-12-05  0:46     ` Jarkko Sakkinen
2018-12-06 18:07       ` Roberto Sassu
2018-12-12 18:18         ` Jarkko Sakkinen
2018-12-04  8:21 ` [PATCH v6 7/7] tpm: pass an array of tpm_bank_list structures to tpm_pcr_extend() Roberto Sassu
2018-12-05  0:14   ` Jarkko Sakkinen
2018-12-06 18:09     ` Roberto Sassu
2018-12-12 18:25       ` Jarkko Sakkinen
2018-12-06 18:38     ` Roberto Sassu
2018-12-12 18:27       ` Jarkko Sakkinen
2018-12-13  7:57         ` Roberto Sassu
2018-12-14  7:58           ` Jarkko Sakkinen
2018-12-05  0:21 ` [PATCH v6 0/7] tpm: retrieve digest size of unknown algorithms from TPM Jarkko Sakkinen
2018-12-05  0:23   ` Jarkko Sakkinen

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