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Yama: Initialize as ordered LSM

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This converts Yama from being a direct "minor" LSM into an ordered LSM.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
This commit is contained in:
Kees Cook 2018-09-14 15:37:20 -07:00
parent 70b62c2566
commit d6aed64b74
4 changed files with 8 additions and 8 deletions
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5
include/linux/lsm_hooks.h
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@ -2090,10 +2090,5 @@ static inline void security_delete_hooks(struct security_hook_list *hooks,
#endif /* CONFIG_SECURITY_WRITABLE_HOOKS */
extern void __init capability_add_hooks(void);
#ifdef CONFIG_SECURITY_YAMA
extern void __init yama_add_hooks(void);
#else
static inline void __init yama_add_hooks(void) { }
#endif
#endif /* ! __LINUX_LSM_HOOKS_H */

2
security/Kconfig
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@ -241,7 +241,7 @@ source "security/integrity/Kconfig"
config LSM
string "Ordered list of enabled LSMs"
default "loadpin,integrity,selinux,smack,tomoyo,apparmor"
default "yama,loadpin,integrity,selinux,smack,tomoyo,apparmor"
help
A comma-separated list of LSMs, in initialization order.
Any LSMs left off this list will be ignored. This can be

1
security/security.c
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@ -274,7 +274,6 @@ int __init security_init(void)
* Load minor LSMs, with the capability module always first.
*/
capability_add_hooks();
yama_add_hooks();
/* Load LSMs in specified order. */
ordered_lsm_init();

8
security/yama/yama_lsm.c
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@ -477,9 +477,15 @@ static void __init yama_init_sysctl(void)
static inline void yama_init_sysctl(void) { }
#endif /* CONFIG_SYSCTL */
void __init yama_add_hooks(void)
static int __init yama_init(void)
{
pr_info("Yama: becoming mindful.\n");
security_add_hooks(yama_hooks, ARRAY_SIZE(yama_hooks), "yama");
yama_init_sysctl();
return 0;
}
DEFINE_LSM(yama) = {
.name = "yama",
.init = yama_init,
};