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Subject[PATCH security-next v5 07/30] LSM: Convert security_initcall() into DEFINE_LSM()
Date
Instead of using argument-based initializers, switch to defining the
contents of struct lsm_info on a per-LSM basis. This also drops
the final use of the now inaccurate "initcall" naming.

Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
Reviewed-by: James Morris <james.morris@microsoft.com>
---
include/linux/lsm_hooks.h | 5 ++---
security/apparmor/lsm.c | 4 +++-
security/integrity/iint.c | 4 +++-
security/selinux/hooks.c | 4 +++-
security/smack/smack_lsm.c | 4 +++-
security/tomoyo/tomoyo.c | 4 +++-
6 files changed, 17 insertions(+), 8 deletions(-)

diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index d13059feca09..9c6b4198ff5a 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -2045,11 +2045,10 @@ struct lsm_info {

extern struct lsm_info __start_lsm_info[], __end_lsm_info[];

-#define security_initcall(lsm) \
+#define DEFINE_LSM(lsm) \
static struct lsm_info __lsm_##lsm \
__used __section(.lsm_info.init) \
- __aligned(sizeof(unsigned long)) \
- = { .init = lsm, }
+ __aligned(sizeof(unsigned long))

#ifdef CONFIG_SECURITY_SELINUX_DISABLE
/*
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index 8b8b70620bbe..c4863956c832 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -1606,4 +1606,6 @@ static int __init apparmor_init(void)
return error;
}

-security_initcall(apparmor_init);
+DEFINE_LSM(apparmor) = {
+ .init = apparmor_init,
+};
diff --git a/security/integrity/iint.c b/security/integrity/iint.c
index 70d21b566955..94e8e1820748 100644
--- a/security/integrity/iint.c
+++ b/security/integrity/iint.c
@@ -175,7 +175,9 @@ static int __init integrity_iintcache_init(void)
0, SLAB_PANIC, init_once);
return 0;
}
-security_initcall(integrity_iintcache_init);
+DEFINE_LSM(integrity) = {
+ .init = integrity_iintcache_init,
+};


/*
diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
index ad9a9b8e9979..6ca2e89ddbd6 100644
--- a/security/selinux/hooks.c
+++ b/security/selinux/hooks.c
@@ -7202,7 +7202,9 @@ void selinux_complete_init(void)

/* SELinux requires early initialization in order to label
all processes and objects when they are created. */
-security_initcall(selinux_init);
+DEFINE_LSM(selinux) = {
+ .init = selinux_init,
+};

#if defined(CONFIG_NETFILTER)

diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 340fc30ad85d..c62e26939a69 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -4882,4 +4882,6 @@ static __init int smack_init(void)
* Smack requires early initialization in order to label
* all processes and objects when they are created.
*/
-security_initcall(smack_init);
+DEFINE_LSM(smack) = {
+ .init = smack_init,
+};
diff --git a/security/tomoyo/tomoyo.c b/security/tomoyo/tomoyo.c
index 9f932e2d6852..b2d833999910 100644
--- a/security/tomoyo/tomoyo.c
+++ b/security/tomoyo/tomoyo.c
@@ -550,4 +550,6 @@ static int __init tomoyo_init(void)
return 0;
}

-security_initcall(tomoyo_init);
+DEFINE_LSM(tomoyo) = {
+ .init = tomoyo_init,
+};
--
2.17.1
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