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authorKees Cook <keescook@chromium.org>2018-10-10 17:18:21 -0700
committerJames Morris <james.morris@microsoft.com>2018-10-10 20:40:21 -0700
commit5b89c1bd4c7e5c5ca8c5374fde35ecee6e16496c (patch)
tree1149bf533d702366169684a6ea71254f2d8917d6 /include/linux/lsm_hooks.h
parent6907e3746fa1b9b685230098266bbeba99b93c7d (diff)
LSM: Convert from initcall to struct lsm_info
In preparation for doing more interesting LSM init probing, this converts the existing initcall system into an explicit call into a function pointer from a section-collected struct lsm_info array. Signed-off-by: Kees Cook <keescook@chromium.org> Reviewed-by: Casey Schaufler <casey@schaufler-ca.com> Reviewed-by: James Morris <james.morris@microsoft.com> Reviewed-by: John Johansen <john.johansen@canonical.com> Signed-off-by: James Morris <james.morris@microsoft.com>
Diffstat (limited to 'include/linux/lsm_hooks.h')
-rw-r--r--include/linux/lsm_hooks.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/lsm_hooks.h b/include/linux/lsm_hooks.h
index 97a020c616ad..d13059feca09 100644
--- a/include/linux/lsm_hooks.h
+++ b/include/linux/lsm_hooks.h
@@ -2039,6 +2039,18 @@ extern char *lsm_names;
extern void security_add_hooks(struct security_hook_list *hooks, int count,
char *lsm);
+struct lsm_info {
+ int (*init)(void); /* Required. */
+};
+
+extern struct lsm_info __start_lsm_info[], __end_lsm_info[];
+
+#define security_initcall(lsm) \
+ static struct lsm_info __lsm_##lsm \
+ __used __section(.lsm_info.init) \
+ __aligned(sizeof(unsigned long)) \
+ = { .init = lsm, }
+
#ifdef CONFIG_SECURITY_SELINUX_DISABLE
/*
* Assuring the safety of deleting a security module is up to