[PATCH security-next v3 08/29] LSM: Record LSM name in struct lsm_info

[Kees Cook]

In preparation for making LSM selections outside of the LSMs, include
the name of LSMs in struct lsm_info.

Cc: James Morris <james.mor...@microsoft.com>
Signed-off-by: Kees Cook <keesc...@chromium.org>
---
 include/linux/lsm_hooks.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 02ec717189f9..543636f18152 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -2040,16 +2040,20 @@ extern void security_add_hooks(struct 
security_hook_list *hooks, int count,
                                char *lsm);
 
 struct lsm_info {
+       const char *name;       /* Populated automatically. */
        int (*init)(void);
 };
 
 extern struct lsm_info __start_lsm_info[], __end_lsm_info[];
 
 #define DEFINE_LSM(lsm)                                                        
\
+       static const char __lsm_name_##lsm[] __initconst                \
+               __aligned(1) = #lsm;                                    \
        static struct lsm_info __lsm_##lsm                              \
                __used __section(.lsm_info.init)                        \
                __aligned(sizeof(unsigned long))                        \
                = {                                                     \
+                       .name = __lsm_name_##lsm,                       \
 
 #define END_LSM          }
 
-- 
2.17.1