[PATCH v9 21/25] ima: Move IMA-Appraisal to LSM infrastructure

[Paul Moore]

On Jan 15, 2024 Roberto Sassu <roberto.sassu at 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 at huawei.com>
> Reviewed-by: Stefan Berger <stefanb at linux.ibm.com>
> Reviewed-by: Mimi Zohar <zohar at linux.ibm.com>
> Reviewed-by: Casey Schaufler <casey at 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 at paul-moore.com>

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