From 3cfcc19e0b5390c04cb5bfa4e8fde39395410e61 Mon Sep 17 00:00:00 2001 From: John Johansen Date: Mon, 18 Feb 2013 16:03:34 -0800 Subject: apparmor: add utility function to get an arbitrary tasks profile. Signed-off-by: John Johansen Acked-by: Steve Beattie --- security/apparmor/include/context.h | 41 ++++++++++++++++++++++--------------- 1 file changed, 25 insertions(+), 16 deletions(-) (limited to 'security/apparmor/include') diff --git a/security/apparmor/include/context.h b/security/apparmor/include/context.h index a9cbee4d9e48..1e9443a58877 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 @@ -113,6 +98,30 @@ static inline struct aa_profile *aa_cred_profile(const struct cred *cred) return aa_newest_version(cxt->profile); } +/** + * __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 * -- cgit v1.2.3