2008-04-09 12:54:47 +00:00
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/*
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2009-04-14 10:34:24 +00:00
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* Copyright (C) 2008-2009 Martin Willi
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2008-04-09 12:54:47 +00:00
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* Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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/**
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* @defgroup attribute_manager attribute_manager
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* @{ @ingroup attributes
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*/
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#ifndef ATTRIBUTE_MANAGER_H_
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#define ATTRIBUTE_MANAGER_H_
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#include <config/attributes/attribute_provider.h>
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2009-04-24 14:13:52 +00:00
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#include <config/attributes/attribute_handler.h>
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2008-04-09 12:54:47 +00:00
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typedef struct attribute_manager_t attribute_manager_t;
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/**
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2009-04-24 14:13:52 +00:00
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* The attribute manager hands out attributes or handles them.
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*
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* The attribute manager manages both, attribute providers and attribute
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* handlers. Attribute providers are responsible to hand out attributes if
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* a connecting peer requests them. Handlers handle such attributes if they
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* are received on the requesting peer.
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2008-04-09 12:54:47 +00:00
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*/
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struct attribute_manager_t {
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2009-04-24 14:13:52 +00:00
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2008-04-09 12:54:47 +00:00
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/**
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* Acquire a virtual IP address to assign to a peer.
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*
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* @param pool pool name to acquire address from
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2009-04-14 10:34:24 +00:00
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* @param id peer identity to get address forua
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2008-04-09 12:54:47 +00:00
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* @param requested IP in configuration request
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* @return allocated address, NULL to serve none
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*/
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host_t* (*acquire_address)(attribute_manager_t *this,
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char *pool, identification_t *id,
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2009-04-14 10:34:24 +00:00
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host_t *requested);
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2008-04-09 12:54:47 +00:00
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/**
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* Release a previously acquired address.
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*
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* @param pool pool name from which the address was acquired
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* @param address address to release
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2008-12-05 09:40:50 +00:00
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* @param id peer identity to get address for
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2008-04-09 12:54:47 +00:00
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*/
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void (*release_address)(attribute_manager_t *this,
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2008-12-05 09:40:50 +00:00
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char *pool, host_t *address, identification_t *id);
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2008-04-09 12:54:47 +00:00
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2009-04-24 14:13:52 +00:00
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/**
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* Create an enumerator over attributes to hand out to a peer.
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*
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* @param id peer identity to hand out attributes to
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* @return enumerator (configuration_attribute_type_t, chunk_t)
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*/
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enumerator_t* (*create_attribute_enumerator)(attribute_manager_t *this,
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identification_t *id);
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2008-04-09 12:54:47 +00:00
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/**
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* Register an attribute provider to the manager.
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*
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* @param provider attribute provider to register
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*/
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void (*add_provider)(attribute_manager_t *this,
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attribute_provider_t *provider);
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/**
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* Unregister an attribute provider from the manager.
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*
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* @param provider attribute provider to unregister
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*/
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void (*remove_provider)(attribute_manager_t *this,
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attribute_provider_t *provider);
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2009-04-24 14:13:52 +00:00
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/**
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* Handle a configuration attribute by passing them to the handlers.
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*
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* @param ike_sa IKE_SA where attribute was received
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* @param type type of configuration attribute
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* @param data associated attribute data
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* @return handler which handled this attribute, NULL if none
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*/
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attribute_handler_t* (*handle)(attribute_manager_t *this, ike_sa_t *ike_sa,
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configuration_attribute_type_t type, chunk_t data);
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/**
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* Release an attribute previously handle()d by a handler.
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*
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* @param handler handler returned by handle() for this attribute
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* @param ike_sa IKE_SA owning the attribute
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* @param type type of attribute to release
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* @param data associated attribute data
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*/
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void (*release)(attribute_manager_t *this, attribute_handler_t *handler,
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ike_sa_t *ike_sa, configuration_attribute_type_t type,
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chunk_t data);
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/**
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* Register an attribute handler to the manager.
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*
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* @param handler attribute handler to register
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*/
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void (*add_handler)(attribute_manager_t *this,
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attribute_handler_t *handler);
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/**
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* Unregister an attribute handler from the manager.
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*
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* @param handler attribute handler to unregister
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*/
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void (*remove_handler)(attribute_manager_t *this,
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attribute_handler_t *handler);
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2008-04-09 12:54:47 +00:00
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/**
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2009-04-22 08:26:54 +00:00
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* Destroy a attribute_manager instance.
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*/
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void (*destroy)(attribute_manager_t *this);
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2008-04-09 12:54:47 +00:00
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};
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/**
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* Create a attribute_manager instance.
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*/
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attribute_manager_t *attribute_manager_create();
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2009-03-24 17:43:01 +00:00
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#endif /** ATTRIBUTE_MANAGER_H_ @}*/
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