Re: [PATCH v35 24/29] LSM: Add a function to report multiple LSMs
From: John Johansen <john.johansen@canonical.com>
Date: 2022-04-25 23:33:20
Also in:
lkml, selinux
On 4/18/22 07:59, Casey Schaufler wrote:
Add a new boolean function lsm_multiple_contexts() to identify when multiple security modules provide security context strings. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: John Johansen <john.johansen@canonical.com>
quoted hunk ↗ jump to hunk
--- include/linux/security.h | 9 +++++++++ 1 file changed, 9 insertions(+)diff --git a/include/linux/security.h b/include/linux/security.h index 2150016492be..3fab84220f88 100644 --- a/include/linux/security.h +++ b/include/linux/security.h@@ -232,6 +232,15 @@ static inline bool lsmblob_equal(const struct lsmblob *bloba, extern int lsm_name_to_slot(char *name); extern const char *lsm_slot_to_name(int slot); +static inline bool lsm_multiple_contexts(void) +{ +#ifdef CONFIG_SECURITY + return lsm_slot_to_name(1) != NULL; +#else + return false; +#endif +} + /** * lsmblob_value - find the first non-zero value in an lsmblob structure. * @blob: Pointer to the data