Smack: fix the subject/object order in smack_ptrace_traceme()

[platform/adaptation/renesas_rcar/renesas_kernel.git] / security / smack / smack_access.c

diff --git a/security/smack/smack_access.c b/security/smack/smack_access.c
index 14293cd..f161deb 100644 (file)
--- a/security/smack/smack_access.c
+++ b/security/smack/smack_access.c
@@ -192,20 +192,21 @@ out_audit:
 }
 
 /**
- * smk_curacc - determine if current has a specific access to an object
+ * smk_tskacc - determine if a task has a specific access to an object
+ * @tsp: a pointer to the subject task
  * @obj_label: a pointer to the object's Smack label
  * @mode: the access requested, in "MAY" format
  * @a : common audit data
  *
- * This function checks the current subject label/object label pair
+ * This function checks the subject task's label/object label pair
  * in the access rule list and returns 0 if the access is permitted,
- * non zero otherwise. It allows that current may have the capability
+ * non zero otherwise. It allows that the task may have the capability
  * to override the rules.
  */
-int smk_curacc(char *obj_label, u32 mode, struct smk_audit_info *a)
+int smk_tskacc(struct task_smack *subject, char *obj_label,
+              u32 mode, struct smk_audit_info *a)
 {
-       struct task_smack *tsp = current_security();
-       struct smack_known *skp = smk_of_task(tsp);
+       struct smack_known *skp = smk_of_task(subject);
        int may;
        int rc;
 
@@ -219,7 +220,7 @@ int smk_curacc(char *obj_label, u32 mode, struct smk_audit_info *a)
                 * it can further restrict access.
                 */
                may = smk_access_entry(skp->smk_known, obj_label,
-                                       &tsp->smk_rules);
+                                       &subject->smk_rules);
                if (may < 0)
                        goto out_audit;
                if ((mode & may) == mode)
@@ -241,6 +242,24 @@ out_audit:
        return rc;
 }
 
+/**
+ * smk_curacc - determine if current has a specific access to an object
+ * @obj_label: a pointer to the object's Smack label
+ * @mode: the access requested, in "MAY" format
+ * @a : common audit data
+ *
+ * This function checks the current subject label/object label pair
+ * in the access rule list and returns 0 if the access is permitted,
+ * non zero otherwise. It allows that current may have the capability
+ * to override the rules.
+ */
+int smk_curacc(char *obj_label, u32 mode, struct smk_audit_info *a)
+{
+       struct task_smack *tsp = current_security();
+
+       return smk_tskacc(tsp, obj_label, mode, a);
+}
+
 #ifdef CONFIG_AUDIT
 /**
  * smack_str_from_perm : helper to transalate an int to a