2 * AppArmor security module
4 * This file contains AppArmor security identifier (sid) manipulation fns
6 * Copyright 2009-2010 Canonical Ltd.
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation, version 2 of the
14 * AppArmor allocates a unique sid for every profile loaded. If a profile
15 * is replaced it receives the sid of the profile it is replacing.
17 * The sid value of 0 is invalid.
20 #include <linux/spinlock.h>
21 #include <linux/errno.h>
22 #include <linux/err.h>
24 #include "include/sid.h"
26 /* global counter from which sids are allocated */
27 static u32 global_sid;
28 static DEFINE_SPINLOCK(sid_lock);
30 /* TODO FIXME: add sid to profile mapping, and sid recycling */
33 * aa_alloc_sid - allocate a new sid for a profile
35 u32 aa_alloc_sid(void)
40 * TODO FIXME: sid recycling - part of profile mapping table
44 spin_unlock(&sid_lock);
49 * aa_free_sid - free a sid
52 void aa_free_sid(u32 sid)