linux/security/integrity
Russell Currey 4b3e71e9a3 integrity/powerpc: Support loading keys from PLPKS
Add support for loading keys from the PLPKS on pseries machines, with the
"ibm,plpks-sb-v1" format.

The object format is expected to be the same, so there shouldn't be any
functional differences between objects retrieved on powernv or pseries.

Unlike on powernv, on pseries the format string isn't contained in the
device tree. Use secvar_ops->format() to fetch the format string in a
generic manner, rather than searching the device tree ourselves.

(The current code searches the device tree for a node compatible with
"ibm,edk2-compat-v1". This patch switches to calling secvar_ops->format(),
which in the case of OPAL/powernv means opal_secvar_format(), which
searches the device tree for a node compatible with "ibm,secvar-backend"
and checks its "format" property. These are equivalent, as skiboot creates
a node with both "ibm,edk2-compat-v1" and "ibm,secvar-backend" as
compatible strings.)

Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230210080401.345462-27-ajd@linux.ibm.com
2023-02-13 22:34:44 +11:00
..
evm lsm/stable-6.2 PR 20221212 2022-12-13 09:47:48 -08:00
ima fs.vfsuid.ima.v6.2-rc1 2022-12-21 08:13:01 -08:00
platform_certs integrity/powerpc: Support loading keys from PLPKS 2023-02-13 22:34:44 +11:00
digsig_asymmetric.c ima: fix reference leak in asymmetric_verify() 2022-01-24 18:37:36 -05:00
digsig.c integrity: Fix memory leakage in keyring allocation error path 2022-11-16 11:47:47 -05:00
iint.c evm: Load EVM key in ima_load_x509() to avoid appraisal 2021-05-21 12:47:04 -04:00
integrity_audit.c integrity: check the return value of audit_log_start() 2022-02-02 11:44:23 -05:00
integrity.h ima: support fs-verity file digest based version 3 signatures 2022-05-05 17:41:51 -04:00
Kconfig integrity: Introduce a Linux keyring called machine 2022-03-08 13:55:52 +02:00
Makefile integrity: Introduce a Linux keyring called machine 2022-03-08 13:55:52 +02:00