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/**
* @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 **)¤t);
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);
}
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