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-rw-r--r--security/smack/smack.h2
-rw-r--r--security/smack/smack_lsm.c7
-rw-r--r--security/smack/smackfs.c11
3 files changed, 18 insertions, 2 deletions
diff --git a/security/smack/smack.h b/security/smack/smack.h
index 62c1e98..4a4477f 100644
--- a/security/smack/smack.h
+++ b/security/smack/smack.h
@@ -15,6 +15,7 @@
#include <linux/capability.h>
#include <linux/spinlock.h>
+#include <linux/security.h>
#include <net/netlabel.h>
/*
@@ -187,6 +188,7 @@ extern struct smack_known smack_known_star;
extern struct smack_known smack_known_unset;
extern struct smk_list_entry *smack_list;
+extern struct security_operations smack_ops;
/*
* Stricly for CIPSO level manipulation.
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index e2d6f7c..93f5b0c 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -2424,7 +2424,9 @@ static void smack_release_secctx(char *secdata, u32 seclen)
{
}
-static struct security_operations smack_ops = {
+struct security_operations smack_ops = {
+ .name = "smack",
+
.ptrace = smack_ptrace,
.capget = cap_capget,
.capset_check = cap_capset_check,
@@ -2557,6 +2559,9 @@ static struct security_operations smack_ops = {
*/
static __init int smack_init(void)
{
+ if (!security_module_enable(&smack_ops))
+ return 0;
+
printk(KERN_INFO "Smack: Initializing.\n");
/*
diff --git a/security/smack/smackfs.c b/security/smack/smackfs.c
index cfae8af..6ba2837 100644
--- a/security/smack/smackfs.c
+++ b/security/smack/smackfs.c
@@ -965,12 +965,21 @@ static struct vfsmount *smackfs_mount;
*
* register the smackfs
*
- * Returns 0 unless the registration fails.
+ * Do not register smackfs if Smack wasn't enabled
+ * on boot. We can not put this method normally under the
+ * smack_init() code path since the security subsystem get
+ * initialized before the vfs caches.
+ *
+ * Returns true if we were not chosen on boot or if
+ * we were chosen and filesystem registration succeeded.
*/
static int __init init_smk_fs(void)
{
int err;
+ if (!security_module_enable(&smack_ops))
+ return 0;
+
err = register_filesystem(&smk_fs_type);
if (!err) {
smackfs_mount = kern_mount(&smk_fs_type);
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