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