[PATCH v30 26/28] Audit: Add record for multiple object security contexts

[Paul Moore]

On Tue, Nov 23, 2021 at 9:12 PM Casey Schaufler <casey at schaufler-ca.com> wrote:
>
> Create a new audit record AUDIT_MAC_OBJ_CONTEXTS.
> An example of the MAC_OBJ_CONTEXTS (1421) record is:
>
>     type=UNKNOWN[1421]
>     msg=audit(1601152467.009:1050):
>     obj_selinux="unconfined_u:object_r:user_home_t:s0"
>
> When an audit event includes a AUDIT_MAC_OBJ_CONTEXTS record
> the "obj=" field in other records in the event will be "obj=?".
> A AUDIT_MAC_OBJ_CONTEXTS record is supplied when the system has
> multiple security modules that may make access decisions based
> on an object security context.
>
> Signed-off-by: Casey Schaufler <casey at schaufler-ca.com>
> ---
>  include/linux/audit.h      |  5 ++++
>  include/uapi/linux/audit.h |  1 +
>  kernel/audit.c             | 61 ++++++++++++++++++++++++++++++++++++++
>  kernel/auditsc.c           | 37 ++++-------------------
>  4 files changed, 72 insertions(+), 32 deletions(-)

My comments on 24/28 and 25/28 should also apply to this patch.

--
paul moore
www.paul-moore.com