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-rw-r--r--security/security.c20
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 @@
#define SECURITY_NAME_MAX 10
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);
+}
+EXPORT_SYMBOL(call_lsm_notifier);
+
+int register_lsm_notifier(struct notifier_block *nb)
+{
+ return atomic_notifier_chain_register(&lsm_notifier_chain, nb);
+}
+EXPORT_SYMBOL(register_lsm_notifier);
+
+int unregister_lsm_notifier(struct notifier_block *nb)
+{
+ return atomic_notifier_chain_unregister(&lsm_notifier_chain, nb);
+}
+EXPORT_SYMBOL(unregister_lsm_notifier);
+
/*
* Hook list operation macros.
*