This adds a flag for the current "major" LSMs to distinguish them when
we have a universal method for ordering all LSMs. It's called "legacy"
since the distinction of "major" will go away in the blob-sharing world.
Signed-off-by: Kees Cook <keescook@xxxxxxxxxxxx>
---
include/linux/lsm_hooks.h | 3 +++
security/apparmor/lsm.c | 1 +
security/selinux/hooks.c | 1 +
security/smack/smack_lsm.c | 1 +
security/tomoyo/tomoyo.c | 1 +
5 files changed, 7 insertions(+)
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 543636f18152..38cbefabff71 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -2039,8 +2039,11 @@ extern char *lsm_names;
extern void security_add_hooks(struct security_hook_list *hooks, int count,
char *lsm);
+#define LSM_FLAG_LEGACY_MAJOR (1 << 0)
+
struct lsm_info {
const char *name; /* Populated automatically. */
+ unsigned long flags; /* Optional: flags describing LSM */
int (*init)(void);
};
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 7fa7b4464cf4..4c5f63e9aeba 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -1607,5 +1607,6 @@ static int __init apparmor_init(void)
}
DEFINE_LSM(apparmor)
+ .flags = LSM_FLAG_LEGACY_MAJOR,
.init = apparmor_init,
END_LSM;
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index 469a90806bc6..615cf6498c0f 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -7203,6 +7203,7 @@ void selinux_complete_init(void)
/* SELinux requires early initialization in order to label
all processes and objects when they are created. */
DEFINE_LSM(selinux)
+ .flags = LSM_FLAG_LEGACY_MAJOR,
.init = selinux_init,
END_LSM;
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 1e1ace718e75..4aef844fc0e2 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -4883,5 +4883,6 @@ static __init int smack_init(void)
* all processes and objects when they are created.
*/
DEFINE_LSM(smack)
+ .flags = LSM_FLAG_LEGACY_MAJOR,
.init = smack_init,
END_LSM;
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index a280d4eab456..528b6244a648 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -551,5 +551,6 @@ static int __init tomoyo_init(void)
}
DEFINE_LSM(tomoyo)
+ .flags = LSM_FLAG_LEGACY_MAJOR,
.init = tomoyo_init,
END_LSM;
--
2.17.1
