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/**
* @file init_config.h
*
* @brief Interface of init_config_t.
*
*/
/*
* Copyright (C) 2005 Jan Hutter, 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.
*/
#ifndef _INIT_CONFIG_H_
#define _INIT_CONFIG_H_
#include <types.h>
#include <network/host.h>
#include <utils/iterator.h>
#include <transforms/crypters/crypter.h>
#include <transforms/prfs/prf.h>
#include <transforms/signers/signer.h>
#include <transforms/diffie_hellman.h>
typedef struct ike_proposal_t ike_proposal_t;
/**
* Represents a Proposal used in IKE_SA_INIT phase.
*/
struct ike_proposal_t {
/**
* Encryption algorithm.
* */
encryption_algorithm_t encryption_algorithm;
/**
* Key length of encryption algorithm in bytes.
*/
u_int16_t encryption_algorithm_key_length;
/**
* Integrity algorithm.
*/
integrity_algorithm_t integrity_algorithm;
/**
* Key length of integrity algorithm
*/
u_int16_t integrity_algorithm_key_length;
/**
* Pseudo random function (prf).
*/
pseudo_random_function_t pseudo_random_function;
/**
* Key length of prf.
*/
u_int16_t pseudo_random_function_key_length;
/**
* Diffie hellman group.
*/
diffie_hellman_group_t diffie_hellman_group;
};
typedef struct init_config_t init_config_t;
/**
* Represents a configuration class holding all needed informations for IKE_SA_INIT phase.
*
* @ingroup config
*
*/
struct init_config_t {
/**
* Get my host information as host_t object.
*
* @warning Object is getting cloned and has to get destroyed by caller.
*
* @param this calling object
* @return host information as host_t object
*/
host_t * (*get_my_host) (init_config_t *this);
/**
* Get other host information as host_t object.
*
* @warning Object is getting cloned and has to get destroyed by caller.
*
* @param this calling object
* @return host information as host_t object
*/
host_t * (*get_other_host) (init_config_t *this);
/**
* Get the diffie hellman group to use as initiator with given priority.
*
*
* @param this calling object
* @param priority priority of dh group number (starting at 1)
* @return diffie hellman group number for given priority or
* MODP_UNDEFINED for not supported priorities
*/
diffie_hellman_group_t (*get_dh_group_number) (init_config_t *this,size_t priority);
/**
* Returns a list of all supported ike_proposals of type ike_proposal_t *.
*
* @warning array of ike_proposal_t has to get destroyed by the caller
*
* @param this calling object
* @param proposals first proposal in a array
* @return number of proposals in array
*/
size_t (*get_proposals) (init_config_t *this,ike_proposal_t **proposals);
/**
* Adds a proposal with given priority to the current stored proposals
*
* If allready a proposal with given priority is stored the other one is
* moved one priority back. If priority is higher then all other stored
* proposals, it is inserted as last one.
*
* @param this calling object
* @param priority priority of adding proposal
* @param proposal proposal to add
*/
void (*add_proposal) (init_config_t *this,size_t priority, ike_proposal_t proposal);
/**
* Select a proposed from suggested proposals.
*
*
* @param this calling object
* @param suggested_proposals first proposal in a array
* @param proposal_count number of suggested proposals in array
* @param selected_proposal the ike_proposal_t pointing to is set
* @return
* - SUCCESS if a proposal was selected
* - NOT_FOUND if none of suggested proposals is supported
*/
status_t (*select_proposal) (init_config_t *this, ike_proposal_t *proposals, size_t proposal_count, ike_proposal_t *selected_proposal);
/**
* Destroys a init_config_t object.
*
* @param this calling object
*/
void (*destroy) (init_config_t *this);
};
/**
* Creates a init_config_t object.
*
* @return pointer to created init_config_t object.
*
* @ingroup config
*/
init_config_t * init_config_create(char * my_ip, char *other_ip, u_int16_t my_port, u_int16_t other_port);
#endif //_INIT_CONFIG_H_
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