[thirdparty/strongswan.git] / programs / charon / charon / config / policies / local_policy_store.c

/**
 * @file local_policy_store.c
 * 
 * @brief Implementation of local_policy_store_t.
 *  
 */

/*
 * Copyright (C) 2006 Martin Willi
 * Hochschule fuer Technik Rapperswil
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the
 * Free Software Foundation; either version 2 of the License, or (at your
 * option) any later version.  See <http://www.fsf.org/copyleft/gpl.txt>.
 *
 * This program 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 General Public License
 * for more details.
 */

#include "local_policy_store.h"

#include <utils/linked_list.h>
#include <utils/logger_manager.h>


typedef struct private_local_policy_store_t private_local_policy_store_t;

/**
 * Private data of an local_policy_store_t object
 */
struct private_local_policy_store_t {

	/**
	 * Public part
	 */
	local_policy_store_t public;
	
	/**
	 * list of policy_t's
	 */
	linked_list_t *policies;
	
	/**
	 * Assigned logger
	 */
	logger_t *logger;
};

/**
 * Implementation of policy_store_t.add_policy.
 */
static void add_policy(private_local_policy_store_t *this, policy_t *policy)
{
	this->policies->insert_last(this->policies, (void*)policy);
}


/**
 * Implementation of policy_store_t.get_policy.
 */
static policy_t *get_policy(private_local_policy_store_t *this, identification_t *my_id, identification_t *other_id)
{
	iterator_t *iterator;
	policy_t *current, *found = NULL;
	
	this->logger->log(this->logger, CONTROL|LEVEL1, "Looking for policy for IDs %s - %s",
					  my_id ? my_id->get_string(my_id) : "%any",
					  other_id->get_string(other_id));
	iterator = this->policies->create_iterator(this->policies, TRUE);
	while (iterator->has_next(iterator))
	{
		iterator->current(iterator, (void **)&current);
		identification_t *config_my_id = current->get_my_id(current);
		identification_t *config_other_id = current->get_other_id(current);
		
		this->logger->log(this->logger, CONTROL|LEVEL2, "Found one for %s - %s",
						  config_my_id->get_string(config_my_id),
						  config_other_id->get_string(config_other_id));
		
		/* check other host first */
		if (other_id->belongs_to(other_id, config_other_id))
		{
			/* get it if my_id not specified */
			if (my_id->belongs_to(my_id, config_my_id))
			{
				found = current->clone(current);
				break;
			}
		}
	}
	iterator->destroy(iterator);
	
	/* apply IDs as they are requsted, since they may be configured as %any or such */
	if (found)
	{
		found->update_my_id(found, my_id->clone(my_id));
		found->update_other_id(found, other_id->clone(other_id));
	}
	return found;
}

/**
 * Implementation of policy_store_t.destroy.
 */
static void destroy(private_local_policy_store_t *this)
{
	policy_t *policy;
	
	while (this->policies->remove_last(this->policies, (void**)&policy) == SUCCESS)
	{
		policy->destroy(policy);
	}
	this->policies->destroy(this->policies);
	free(this);
}

/**
 * Described in header.
 */
local_policy_store_t *local_policy_store_create()
{
	private_local_policy_store_t *this = malloc_thing(private_local_policy_store_t);
	
	this->public.policy_store.add_policy = (void(*)(policy_store_t*,policy_t*))add_policy;
	this->public.policy_store.get_policy = (policy_t*(*)(policy_store_t*,identification_t*,identification_t*))get_policy;
	this->public.policy_store.destroy = (void(*)(policy_store_t*))destroy;
	
	/* private variables */
	this->policies = linked_list_create();
	this->logger = logger_manager->get_logger(logger_manager, CONFIG);
	
	return (&this->public);
}
Commit	Line	Data
13e4a62f MW	1	/**
	2	* @file local_policy_store.c
	3	*
	4	* @brief Implementation of local_policy_store_t.
	5	*
	6	*/
	7
	8	/*
	9	* Copyright (C) 2006 Martin Willi
	10	* Hochschule fuer Technik Rapperswil
	11	*
	12	* This program is free software; you can redistribute it and/or modify it
	13	* under the terms of the GNU General Public License as published by the
	14	* Free Software Foundation; either version 2 of the License, or (at your
	15	* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
	16	*
	17	* This program is distributed in the hope that it will be useful, but
	18	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	19	* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	20	* for more details.
	21	*/
	22
	23	#include "local_policy_store.h"
	24
	25	#include <utils/linked_list.h>
	26	#include <utils/logger_manager.h>
	27
	28
	29	typedef struct private_local_policy_store_t private_local_policy_store_t;
	30
	31	/**
	32	* Private data of an local_policy_store_t object
	33	*/
	34	struct private_local_policy_store_t {
	35
	36	/**
	37	* Public part
	38	*/
	39	local_policy_store_t public;
	40
	41	/**
	42	* list of policy_t's
	43	*/
	44	linked_list_t *policies;
	45
	46	/**
	47	* Assigned logger
	48	*/
	49	logger_t *logger;
	50	};
	51
	52	/**
	53	* Implementation of policy_store_t.add_policy.
	54	*/
	55	static void add_policy(private_local_policy_store_t this, policy_t policy)
	56	{
	57	this->policies->insert_last(this->policies, (void*)policy);
	58	}
	59
	60
	61	/**
	62	* Implementation of policy_store_t.get_policy.
	63	*/
	64	static policy_t get_policy(private_local_policy_store_t this, identification_t my_id, identification_t other_id)
65	{
66	iterator_t *iterator;
67	policy_t current, found = NULL;
68
eea35346	69	this->logger->log(this->logger, CONTROL\|LEVEL1, "Looking for policy for IDs %s - %s",
e168ee17 MW	70	my_id ? my_id->get_string(my_id) : "%any",
e168ee17 MW	71	other_id->get_string(other_id));
13e4a62f MW	72	iterator = this->policies->create_iterator(this->policies, TRUE);
	73	while (iterator->has_next(iterator))
	74	{
	75	iterator->current(iterator, (void **)&current);
	76	identification_t *config_my_id = current->get_my_id(current);
	77	identification_t *config_other_id = current->get_other_id(current);
	78
eea35346	79	this->logger->log(this->logger, CONTROL\|LEVEL2, "Found one for %s - %s",
e168ee17 MW	80	config_my_id->get_string(config_my_id),
	81	config_other_id->get_string(config_other_id));
	82
13e4a62f	83	/* check other host first */
e168ee17	84	if (other_id->belongs_to(other_id, config_other_id))
13e4a62f MW	85	{
13e4a62f MW	86	/* get it if my_id not specified */
e168ee17	87	if (my_id->belongs_to(my_id, config_my_id))
13e4a62f MW	88	{
	89	found = current->clone(current);
	90	break;
	91	}
	92	}
	93	}
	94	iterator->destroy(iterator);
	95
	96	/* apply IDs as they are requsted, since they may be configured as %any or such */
	97	if (found)
	98	{
eea35346	99	found->update_my_id(found, my_id->clone(my_id));
13e4a62f MW	100	found->update_other_id(found, other_id->clone(other_id));
	101	}
	102	return found;
	103	}
	104
	105	/**
	106	* Implementation of policy_store_t.destroy.
	107	*/
	108	static void destroy(private_local_policy_store_t *this)
	109	{
	110	policy_t *policy;
	111
	112	while (this->policies->remove_last(this->policies, (void**)&policy) == SUCCESS)
	113	{
	114	policy->destroy(policy);
	115	}
	116	this->policies->destroy(this->policies);
	117	free(this);
	118	}
	119
	120	/**
	121	* Described in header.
	122	*/
	123	local_policy_store_t *local_policy_store_create()
	124	{
	125	private_local_policy_store_t *this = malloc_thing(private_local_policy_store_t);
	126
	127	this->public.policy_store.add_policy = (void()(policy_store_t,policy_t*))add_policy;
	128	this->public.policy_store.get_policy = (policy_t()(policy_store_t,identification_t,identification_t*))get_policy;
	129	this->public.policy_store.destroy = (void()(policy_store_t))destroy;
	130
	131	/* private variables */
	132	this->policies = linked_list_create();
	133	this->logger = logger_manager->get_logger(logger_manager, CONFIG);
	134
	135	return (&this->public);
	136	}