56 lines
1.2 KiB
C
56 lines
1.2 KiB
C
/*
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* AppArmor security module
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*
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* This file contains AppArmor security identifier (secid) manipulation fns
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*
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* Copyright 2009-2010 Canonical Ltd.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation, version 2 of the
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* License.
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*
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*
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* AppArmor allocates a unique secid for every profile loaded. If a profile
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* is replaced it receives the secid of the profile it is replacing.
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*
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* The secid value of 0 is invalid.
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*/
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#include <linux/spinlock.h>
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#include <linux/errno.h>
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#include <linux/err.h>
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#include "include/secid.h"
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/* global counter from which secids are allocated */
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static u32 global_secid;
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static DEFINE_SPINLOCK(secid_lock);
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/* TODO FIXME: add secid to profile mapping, and secid recycling */
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/**
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* aa_alloc_secid - allocate a new secid for a profile
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*/
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u32 aa_alloc_secid(void)
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{
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u32 secid;
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/*
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* TODO FIXME: secid recycling - part of profile mapping table
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*/
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spin_lock(&secid_lock);
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secid = (++global_secid);
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spin_unlock(&secid_lock);
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return secid;
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}
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/**
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* aa_free_secid - free a secid
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* @secid: secid to free
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*/
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void aa_free_secid(u32 secid)
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{
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; /* NOP ATM */
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}
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