[PATCH v5 19/38] capability: Initialize as LSM_ORDER_FIRST

From: Casey Schaufler
Date: Tue Dec 11 2018 - 17:43:50 EST


From: Kees Cook <keescook@xxxxxxxxxxxx>

This converts capabilities to use the new LSM_ORDER_FIRST position.

Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
Reviewed-by: Casey Schaufler <casey@xxxxxxxxxxxxxxxx>
---
include/linux/lsm_hooks.h | 2 --
security/commoncap.c | 9 ++++++++-
security/security.c | 5 -----
3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 83858e3df9e5..15fc49ee41a1 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -2092,6 +2092,4 @@ static inline void security_delete_hooks(struct security_hook_list *hooks,
#define __lsm_ro_after_init __ro_after_init
#endif /* CONFIG_SECURITY_WRITABLE_HOOKS */

-extern void __init capability_add_hooks(void);
-
#endif /* ! __LINUX_LSM_HOOKS_H */
diff --git a/security/commoncap.c b/security/commoncap.c
index 18a4fdf6f6eb..ec387535e597 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -1363,10 +1363,17 @@ struct security_hook_list capability_hooks[] __lsm_ro_after_init = {
LSM_HOOK_INIT(vm_enough_memory, cap_vm_enough_memory),
};

-void __init capability_add_hooks(void)
+static int __init capability_init(void)
{
security_add_hooks(capability_hooks, ARRAY_SIZE(capability_hooks),
"capability");
+ return 0;
}

+DEFINE_LSM(capability) = {
+ .name = "capability",
+ .order = LSM_ORDER_FIRST,
+ .init = capability_init,
+};
+
#endif /* CONFIG_SECURITY */
diff --git a/security/security.c b/security/security.c
index 701507174f40..eab64bdc60fb 100644
--- a/security/security.c
+++ b/security/security.c
@@ -277,11 +277,6 @@ int __init security_init(void)
i++)
INIT_HLIST_HEAD(&list[i]);

- /*
- * Load minor LSMs, with the capability module always first.
- */
- capability_add_hooks();
-
/* Load LSMs in specified order. */
ordered_lsm_init();

--
2.14.5