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From: Stefan Berger <stefanb@linux.vnet.ibm.com>
To: linux-integrity@vger.kernel.org, jarkko.sakkinen@linux.intel.com,
	zohar@linux.vnet.ibm.com
Cc: jgg@ziepe.ca, linux-kernel@vger.kernel.org,
	Stefan Berger <stefanb@linux.vnet.ibm.com>
Subject: [PATCH v2 0/4] Have IMA find and use a tpm_chip until system shutdown
Date: Wed, 20 Jun 2018 16:42:32 -0400	[thread overview]
Message-ID: <20180620204236.1572523-1-stefanb@linux.vnet.ibm.com> (raw)

This series of patches converts IMA's usage of the tpm_chip to find a TPM
chip initially and use it until the machine is shut down. To do this we need
to introduce a kref for the tpm_chip that IMA and all other users of a
tpm_chip hold onto until they don't need the TPM chip anymore.

    Stefan

v1->v2:
  - use the kref of the device via get_device()/put_device()

Stefan Berger (4):
  tpm: Implement tpm_chip_find() and tpm_chip_put() for other subsystems
  ima: Implement ima_shutdown and register it as a reboot_notifier
  ima: Use tpm_chip_find() and access TPM functions using it
  ima: Get rid of ima_used_chip and use ima_tpm_chip != NULL instead

 drivers/char/tpm/tpm-chip.c         | 37 +++++++++++++++++++++++++++++++++++++
 include/linux/tpm.h                 |  9 +++++++++
 security/integrity/ima/ima.h        |  4 +++-
 security/integrity/ima/ima_crypto.c | 14 +++++++++++---
 security/integrity/ima/ima_init.c   | 36 ++++++++++++++++++++++++++----------
 security/integrity/ima/ima_queue.c  |  9 ++++++---
 6 files changed, 92 insertions(+), 17 deletions(-)

-- 
2.13.6


             reply	other threads:[~2018-06-20 20:42 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-06-20 20:42 Stefan Berger [this message]
2018-06-20 20:42 ` [PATCH v2 1/4] tpm: Implement tpm_chip_find() and tpm_chip_put() for other subsystems Stefan Berger
2018-06-20 20:50   ` Jason Gunthorpe
2018-06-20 21:13     ` Stefan Berger
2018-06-21 17:13     ` Jarkko Sakkinen
2018-06-21 17:15   ` Jarkko Sakkinen
2018-06-21 17:27     ` Stefan Berger
2018-06-21 17:45     ` Stefan Berger
2018-06-21 17:56       ` Jason Gunthorpe
2018-06-21 18:19         ` Stefan Berger
2018-06-21 19:06           ` Jason Gunthorpe
2018-06-21 20:14             ` Stefan Berger
2018-06-21 20:51               ` Jason Gunthorpe
2018-06-20 20:42 ` [PATCH v2 2/4] ima: Implement ima_shutdown and register it as a reboot_notifier Stefan Berger
2018-06-20 20:42 ` [PATCH v2 3/4] ima: Use tpm_chip_find() and access TPM functions using it Stefan Berger
2018-06-21 20:53   ` Mimi Zohar
2018-06-21 20:59     ` Stefan Berger
2018-06-22  3:25       ` Jason Gunthorpe
2018-06-22 11:40         ` Stefan Berger
2018-06-22 14:19           ` Jason Gunthorpe
2018-06-20 20:42 ` [PATCH v2 4/4] ima: Get rid of ima_used_chip and use ima_tpm_chip != NULL instead Stefan Berger

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