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/**
* @file
* Public interface for loading and using an extended
* policy image.
*
* @author Kevin Carr kcarr@tresys.com
* @author Jeremy A. Mowery jmowery@tresys.com
* @author Jason Tang jtang@tresys.com
*
* Copyright (C) 2006-2007 Tresys Technology, LLC
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef QPOL_POLICY_EXTEND_H
#define QPOL_POLICY_EXTEND_H
#ifdef __cplusplus
extern "C"
{
#endif
#include <qpol/policy.h>
#include <qpol/iterator.h>
/**
* Build the table of syntactic rules for a policy.
* Subsequent calls to this function have no effect.
* @param policy The policy for which to build the table.
* This policy will be modified by this call.
* @return 0 on success and < 0 on error; if the call fails,
* errno will be set.
*/
extern int qpol_policy_build_syn_rule_table(qpol_policy_t * policy);
/* forward declarations: see avrule_query.h and terule_query.h */
struct qpol_avrule;
struct qpol_terule;
/**
* Get an iterator over the syntactic rules contributing to an av rule.
* @param policy Policy associated with the rule.
* @param rule Rule from which to get the syntactic rules.
* @param iter Iterator over items of type qpol_syn_avrule_t returned.
* The caller is responsible for calling qpol_iterator_destroy()
* to free memory used by this iterator.
* It is important to note that this iterator is only valid as long as
* the policy is unmodified.
* @return 0 on success and < 0 on failure; if the call fails,
* errno will be set and *iter will be NULL.
*/
extern int qpol_avrule_get_syn_avrule_iter(const qpol_policy_t * policy, const struct qpol_avrule *rule,
qpol_iterator_t ** iter);
/**
* Get an iterator over the syntactic rules contributing to a type rule.
* @param policy Policy associated with the rule.
* @param rule Rule from which to get the syntactic rules.
* @param iter Iterator over items of type qpol_syn_terule_t returned.
* The caller is responsible for calling qpol_iterator_destroy()
* to free memory used by this iterator.
* It is important to note that this iterator is only valid as long as
* the policy is unmodified.
* @return 0 on success and < 0 on failure; if the call fails,
* errno will be set and *iter will be NULL.
*/
extern int qpol_terule_get_syn_terule_iter(const qpol_policy_t * policy, const struct qpol_terule *rule,
qpol_iterator_t ** iter);
#ifdef __cplusplus
}
#endif
#endif /* QPOL_POLICY_EXTEND_H */
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