[PATCH 15/18] capability: Initialize as LSM_TYPE_MINOR

From: Kees Cook
Date: Sat Sep 15 2018 - 20:31:28 EST


This converts capabilities to use the new LSM_TYPE_MINOR marking, as well
as the LSM_ORDER_FIRST position.

Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
include/linux/lsm_hooks.h | 2 --
security/commoncap.c | 9 ++++++++-
security/security.c | 1 -
3 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 0564153130c8..f2949744a5d3 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -2101,6 +2101,4 @@ 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 2e489d6a3ac8..44e7a9260f89 100644
--- a/security/commoncap.c
+++ b/security/commoncap.c
@@ -1366,10 +1366,17 @@ 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)
+ .order = LSM_ORDER_FIRST,
+ .type = LSM_TYPE_MINOR,
+ .init = capability_init,
+END_LSM;
+
#endif /* CONFIG_SECURITY */
diff --git a/security/security.c b/security/security.c
index c6ca07fc0771..67532326a0ce 100644
--- a/security/security.c
+++ b/security/security.c
@@ -124,7 +124,6 @@ int __init security_init(void)
/*
* Load minor LSMs, with the capability module always first.
*/
- capability_add_hooks();
lsm_init(LSM_TYPE_MINOR);

/*
--
2.17.1