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/*
* Copyright (C) 2009 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.
*/
/**
* @defgroup attribute_handler attribute_handler
* @{ @ingroup attributes
*/
#ifndef ATTRIBUTE_HANDLER_H_
#define ATTRIBUTE_HANDLER_H_
#include <sa/ike_sa.h>
#include <encoding/payloads/configuration_attribute.h>
typedef struct attribute_handler_t attribute_handler_t;
/**
* Interface to handle configuration payload attributes.
*/
struct attribute_handler_t {
/**
* Handle a configuration attribute.
*
* After receiving a configuration attriubte, it is passed to each
* attribute handler until it is handled.
*
* @param type type of configuration attribute to handle
* @param data associated attribute data
* @return TRUE if attribute handled
*/
bool (*handle)(attribute_handler_t *this, ike_sa_t *ike_sa,
configuration_attribute_type_t type, chunk_t data);
/**
* Release an attribute handled during handle().
*
* A handler that handle()d an attribute gets a call to release() when the
* IKE_SA gets closed. Depending on the implementation, this is required
* to remove the attribute.
*/
void (*release)(attribute_handler_t *this, ike_sa_t *ike_sa,
configuration_attribute_type_t type, chunk_t data);
};
#endif /* ATTRIBUTE_HANDLER_ @}*/
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