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Date: Wed, 07 Feb 2024 22:18:52 -0500
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From: Paul Moore <paul@paul-moore.com>
To: Roberto Sassu <roberto.sassu@huaweicloud.com>, viro@zeniv.linux.org.uk, brauner@kernel.org, chuck.lever@oracle.com, jlayton@kernel.org, neilb@suse.de, kolga@netapp.com, Dai.Ngo@oracle.com, tom@talpey.com, jmorris@namei.org, serge@hallyn.com, zohar@linux.ibm.com, dmitry.kasatkin@gmail.com, eric.snowberg@oracle.com, dhowells@redhat.com, jarkko@kernel.org, stephen.smalley.work@gmail.com, eparis@parisplace.org, casey@schaufler-ca.com, shuah@kernel.org, mic@digikod.net
Cc: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-security-module@vger.kernel.org, linux-integrity@vger.kernel.org, keyrings@vger.kernel.org, selinux@vger.kernel.org, linux-kselftest@vger.kernel.org, Roberto Sassu <roberto.sassu@huawei.com>, Stefan Berger <stefanb@linux.ibm.com>
Subject: Re: [PATCH v9 21/25] ima: Move IMA-Appraisal to LSM infrastructure
References: <20240115181809.885385-22-roberto.sassu@huaweicloud.com>
In-Reply-To: <20240115181809.885385-22-roberto.sassu@huaweicloud.com>

On Jan 15, 2024 Roberto Sassu <roberto.sassu@huaweicloud.com> wrote:
> 
> A few additional IMA hooks are needed to reset the cached appraisal
> status, causing the file's integrity to be re-evaluated on next access.
> Register these IMA-appraisal only functions separately from the rest of IMA
> functions, as appraisal is a separate feature not necessarily enabled in
> the kernel configuration.
> 
> Reuse the same approach as for other IMA functions, move hardcoded calls
> from various places in the kernel to the LSM infrastructure. Declare the
> functions as static and register them as hook implementations in
> init_ima_appraise_lsm(), called by init_ima_lsm().
> 
> Also move the inline function ima_inode_remove_acl() from the public ima.h
> header to ima_appraise.c.
> 
> Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
> Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
> Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
> ---
>  fs/attr.c                             |  2 -
>  include/linux/ima.h                   | 55 ---------------------------
>  security/integrity/ima/ima.h          |  5 +++
>  security/integrity/ima/ima_appraise.c | 38 +++++++++++++-----
>  security/integrity/ima/ima_main.c     |  1 +
>  security/security.c                   | 13 -------
>  6 files changed, 35 insertions(+), 79 deletions(-)

Acked-by: Paul Moore <paul@paul-moore.com>

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