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authorJohn Johansen <john.johansen@canonical.com>2013-02-18 16:03:34 -0800
committerJohn Johansen <john.johansen@canonical.com>2013-04-28 00:35:53 -0700
commit3cfcc19e0b5390c04cb5bfa4e8fde39395410e61 (patch)
tree6ce52c3cc5166390814b9451d58badcfee9a3770 /security/apparmor/include
parente573cc30bb36df23fb49a29d96e6c6333d17f59c (diff)
apparmor: add utility function to get an arbitrary tasks profile.
Signed-off-by: John Johansen <john.johansen@canonical.com> Acked-by: Steve Beattie <sbeattie@ubuntu.com>
Diffstat (limited to 'security/apparmor/include')
-rw-r--r--security/apparmor/include/context.h41
1 files changed, 25 insertions, 16 deletions
diff --git a/security/apparmor/include/context.h b/security/apparmor/include/context.h
index a9cbee4d9e4..1e9443a5887 100644
--- a/security/apparmor/include/context.h
+++ b/security/apparmor/include/context.h
@@ -80,23 +80,8 @@ int aa_replace_current_profile(struct aa_profile *profile);
int aa_set_current_onexec(struct aa_profile *profile);
int aa_set_current_hat(struct aa_profile *profile, u64 token);
int aa_restore_previous_profile(u64 cookie);
+struct aa_profile *aa_get_task_profile(struct task_struct *task);
-/**
- * __aa_task_is_confined - determine if @task has any confinement
- * @task: task to check confinement of (NOT NULL)
- *
- * If @task != current needs to be called in RCU safe critical section
- */
-static inline bool __aa_task_is_confined(struct task_struct *task)
-{
- struct aa_task_cxt *cxt = __task_cred(task)->security;
-
- BUG_ON(!cxt || !cxt->profile);
- if (unconfined(aa_newest_version(cxt->profile)))
- return 0;
-
- return 1;
-}
/**
* aa_cred_profile - obtain cred's profiles
@@ -114,6 +99,30 @@ static inline struct aa_profile *aa_cred_profile(const struct cred *cred)
}
/**
+ * __aa_task_profile - retrieve another task's profile
+ * @task: task to query (NOT NULL)
+ *
+ * Returns: @task's profile without incrementing its ref count
+ *
+ * If @task != current needs to be called in RCU safe critical section
+ */
+static inline struct aa_profile *__aa_task_profile(struct task_struct *task)
+{
+ return aa_cred_profile(__task_cred(task));
+}
+
+/**
+ * __aa_task_is_confined - determine if @task has any confinement
+ * @task: task to check confinement of (NOT NULL)
+ *
+ * If @task != current needs to be called in RCU safe critical section
+ */
+static inline bool __aa_task_is_confined(struct task_struct *task)
+{
+ return !unconfined(__aa_task_profile(task));
+}
+
+/**
* __aa_current_profile - find the current tasks confining profile
*
* Returns: up to date confining profile or the ns unconfined profile (NOT NULL)