- class ike_sa_t partly implemented
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172
Source/charon/ike_sa.c
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172
Source/charon/ike_sa.c
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/**
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* @file ike_sa.c
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*
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* @brief Class ike_sa_t. An object of this type is managed by an
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* ike_sa_manager_t-object and represents an IKE_SA
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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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#include "types.h"
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#include "linked_list.h"
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#include "ike_sa.h"
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/**
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* States in which a IKE_SA can actually be
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*/
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typedef enum ike_sa_state_e ike_sa_state_t;
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enum ike_sa_state_e{
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/**
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* IKE_SA is is not in a state
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*/
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NO_STATE,
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/**
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* A IKE_SA_INIT-message was sent: role initiator
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*/
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IKE_SA_INIT_REQUESTED,
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/**
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* A IKE_SA_INIT-message was replied: role responder
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*/
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IKE_SA_INIT_RESPONDED,
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/**
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* An IKE_AUTH-message was sent after a successful
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* IKE_SA_INIT-exchange: role initiator
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*/
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IKE_AUTH_REQUESTED,
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/**
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* An IKE_AUTH-message was replied: role responder.
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* In this state, all the informations for an IKE_SA
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* and one CHILD_SA are known.
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*/
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IKE_SA_INITIALIZED
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};
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/**
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* Private data of an message_t object
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*/
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typedef struct private_ike_sa_s private_ike_sa_t;
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struct private_ike_sa_s {
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/**
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* Public part of a ike_sa_t object
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*/
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ike_sa_t public;
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/* Private values */
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/**
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* Identifier for the current IKE_SA
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*/
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ike_sa_id_t *ike_sa_id;
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/**
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* Linked List containing the child sa's of the current IKE_SA
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*/
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linked_list_t *child_sas;
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/**
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* Current state of the IKE_SA
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*/
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ike_sa_state_t current_state;
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};
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/**
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* @brief implements function process_message of private_ike_sa_t
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*/
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static status_t process_message (private_ike_sa_t *this, message_t *message)
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{
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/* @TODO Add Message Processing here */
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return SUCCESS;
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}
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/**
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* @brief implements function process_configuration of private_ike_sa_t
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*/
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static status_t process_configuration (private_ike_sa_t *this,configuration_t *configuration)
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{
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/*
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* @TODO Add configuration processing here
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*/
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return SUCCESS;
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}
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/**
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* @brief implements function destroy of private_ike_sa_t
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*/
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static status_t destroy (private_ike_sa_t *this)
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{
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if (this == NULL)
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{
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return FAILED;
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}
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this->ike_sa_id->destroy(this->ike_sa_id);
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this->child_sas->destroy(this->child_sas);
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pfree(this);
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return SUCCESS;
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}
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/*
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* Described in Header
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*/
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ike_sa_t * ike_sa_create(ike_sa_id_t *ike_sa_id)
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{
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private_ike_sa_t *this = alloc_thing(private_ike_sa_t, "private_ike_sa_t");
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if (this == NULL)
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{
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return NULL;
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}
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/* Public functions */
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this->public.process_message = (status_t(*)(ike_sa_t*, message_t*)) process_message;
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this->public.process_configuration = (status_t(*)(ike_sa_t*, configuration_t*)) process_configuration;
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this->public.destroy = (status_t(*)(ike_sa_t*))destroy;
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/* initialize private fields */
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if (ike_sa_id->clone(ike_sa_id,&(this->ike_sa_id)) != SUCCESS)
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{
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pfree(this);
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return NULL;
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}
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this->child_sas = linked_list_create();
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if (this->child_sas == NULL)
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{
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this->ike_sa_id->destroy(this->ike_sa_id);
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pfree(this);
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return NULL;
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}
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/* at creation time, IKE_SA isn't in a specific state */
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this->current_state = NO_STATE;
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return (&this->public);
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}
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83
Source/charon/ike_sa.h
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83
Source/charon/ike_sa.h
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/**
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* @file ike_sa.h
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*
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* @brief Class ike_sa_t. An object of this type is managed by an
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* ike_sa_manager_t-object and represents an IKE_SA
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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 IKE_SA_H_
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#define IKE_SA_H_
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#include "types.h"
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#include "message.h"
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#include "configuration.h"
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#include "ike_sa_id.h"
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/**
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* @brief This class is used to represent an IKE_SA
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*
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*/
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typedef struct ike_sa_s ike_sa_t;
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struct ike_sa_s {
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/**
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* @brief Processes a incoming IKEv2-Message of type message_t
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*
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* @param this ike_sa_t-object object
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* @param[in] message message_t-object to process
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* @return SUCCESSFUL if succeeded, FAILED otherwise
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*/
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status_t (*process_message) (ike_sa_t *this,message_t *message);
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/**
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* @brief Processes a specific configuration
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*
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* This function is called when a new IKE_SA is created
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*
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* @param this ike_sa_t-message_t object object
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* @param[in] message message_t-object to process
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* @return SUCCESSFUL if succeeded, FAILED otherwise
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*/
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status_t (*process_configuration) (ike_sa_t *this,configuration_t *configuration);
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/**
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* @brief Destroys a ike_sa_t object
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*
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* @param this ike_sa_t object
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* @return SUCCESSFUL if succeeded, FAILED otherwise
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*/
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status_t (*destroy) (ike_sa_t *this);
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};
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/**
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* Creates an ike_sa_t-object with a specific ike_sa_id_t-object
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*
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* @param[in] ike_sa_id ike_sa_id_t-object to associate with new IKE_SA.
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* The object is internal getting cloned
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* and so has to be destroyed by the caller.
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*
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* @warning the Content of internal ike_sa_id_t-Object can change over time
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* e.g. when a IKE_SA_INIT has been finished
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*
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* @return created ike_sa_t object
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*/
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ike_sa_t * ike_sa_create(ike_sa_id_t *ike_sa_id);
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#endif /*IKE_SA_H_*/
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