Merge branch 'timers/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[cascardo/linux.git] / security / smack / smack_lsm.c

diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index b5c8f92..ee5a51c 100644 (file)
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -95,11 +95,12 @@ struct inode_smack *new_inode_smack(char *smack)
  *
  * Do the capability checks, and require read and write.
  */
-static int smack_ptrace(struct task_struct *ptp, struct task_struct *ctp)
+static int smack_ptrace(struct task_struct *ptp, struct task_struct *ctp,
+                       unsigned int mode)
 {
        int rc;
 
-       rc = cap_ptrace(ptp, ctp);
+       rc = cap_ptrace(ptp, ctp, mode);
        if (rc != 0)
                return rc;
 
@@ -1821,27 +1822,6 @@ static void smack_ipc_getsecid(struct kern_ipc_perm *ipp, u32 *secid)
        *secid = smack_to_secid(smack);
 }
 
-/* module stacking operations */
-
-/**
- * smack_register_security - stack capability module
- * @name: module name
- * @ops: module operations - ignored
- *
- * Allow the capability module to register.
- */
-static int smack_register_security(const char *name,
-                                  struct security_operations *ops)
-{
-       if (strcmp(name, "capability") != 0)
-               return -EINVAL;
-
-       printk(KERN_INFO "%s:  Registering secondary module %s\n",
-              __func__, name);
-
-       return 0;
-}
-
 /**
  * smack_d_instantiate - Make sure the blob is correct on an inode
  * @opt_dentry: unused
@@ -1880,6 +1860,18 @@ static void smack_d_instantiate(struct dentry *opt_dentry, struct inode *inode)
         */
        final = sbsp->smk_default;
 
+       /*
+        * If this is the root inode the superblock
+        * may be in the process of initialization.
+        * If that is the case use the root value out
+        * of the superblock.
+        */
+       if (opt_dentry->d_parent == opt_dentry) {
+               isp->smk_inode = sbsp->smk_root;
+               isp->smk_flags |= SMK_INODE_INSTANT;
+               goto unlockandout;
+       }
+
        /*
         * This is pretty hackish.
         * Casey says that we shouldn't have to do
@@ -2660,8 +2652,6 @@ struct security_operations smack_ops = {
        .netlink_send =                 cap_netlink_send,
        .netlink_recv =                 cap_netlink_recv,
 
-       .register_security =            smack_register_security,
-
        .d_instantiate =                smack_d_instantiate,
 
        .getprocattr =                  smack_getprocattr,