path: root/security/security.c
diff options
authorDaniel Jurgens <danielj@mellanox.com>2017-05-19 15:48:53 +0300
committerPaul Moore <paul@paul-moore.com>2017-05-23 12:27:11 -0400
commit8f408ab64be6319cb7736cbc6982838dcc362306 (patch)
treefa7169e96ad81ac38d6d78ac03668196dde902c4 /security/security.c
parentIB/core: Enforce PKey security on QPs (diff)
selinux lsm IB/core: Implement LSM notification system
Add a generic notificaiton mechanism in the LSM. Interested consumers can register a callback with the LSM and security modules can produce events. Because access to Infiniband QPs are enforced in the setup phase of a connection security should be enforced again if the policy changes. Register infiniband devices for policy change notification and check all QPs on that device when the notification is received. Add a call to the notification mechanism from SELinux when the AVC cache changes or setenforce is cleared. Signed-off-by: Daniel Jurgens <danielj@mellanox.com> Acked-by: James Morris <james.l.morris@oracle.com> Acked-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Paul Moore <paul@paul-moore.com>
Diffstat (limited to 'security/security.c')
1 files changed, 20 insertions, 0 deletions
diff --git a/security/security.c b/security/security.c
index 2a9d1a7fa1f8..b59be0d6535f 100644
--- a/security/security.c
+++ b/security/security.c
@@ -35,6 +35,8 @@
struct security_hook_heads security_hook_heads __lsm_ro_after_init;
+static ATOMIC_NOTIFIER_HEAD(lsm_notifier_chain);
char *lsm_names;
/* Boot-time LSM user choice */
static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] =
@@ -166,6 +168,24 @@ void __init security_add_hooks(struct security_hook_list *hooks, int count,
panic("%s - Cannot get early memory.\n", __func__);
+int call_lsm_notifier(enum lsm_event event, void *data)
+ return atomic_notifier_call_chain(&lsm_notifier_chain, event, data);
+int register_lsm_notifier(struct notifier_block *nb)
+ return atomic_notifier_chain_register(&lsm_notifier_chain, nb);
+int unregister_lsm_notifier(struct notifier_block *nb)
+ return atomic_notifier_chain_unregister(&lsm_notifier_chain, nb);
* Hook list operation macros.