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/*
* Copyright (C) 2007-2008 Tobias Brunner
* 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 connect_manager connect_manager
* @{ @ingroup sa
*/
#ifndef CONNECT_MANAGER_H_
#define CONNECT_MANAGER_H_
typedef struct connect_manager_t connect_manager_t;
#include <encoding/message.h>
#include <sa/ike_sa_id.h>
#include <utils/identification.h>
/**
* The connection manager is responsible for establishing a direct
* connection with another peer.
*/
struct connect_manager_t {
/**
* Checks if a there is already a mediated connection registered
* between two peers.
*
* @param id my id
* @param peer_id the other peer's id
* @param mediated_sa the IKE_SA ID of the mediated connection
* @returns
* - TRUE, if a mediated connection is registered
* - FALSE, otherwise
*/
bool (*check_and_register) (connect_manager_t *this, identification_t *id,
identification_t *peer_id,
ike_sa_id_t *mediated_sa);
/**
* Checks if there are waiting connections with a specific peer.
* If so, reinitiate them.
*
* @param id my id
* @param peer_id the other peer's id
*/
void (*check_and_initiate) (connect_manager_t *this,
ike_sa_id_t *mediation_sa, identification_t *id,
identification_t *peer_id);
/**
* Creates a checklist and sets the initiator's data.
*
* @param initiator ID of the initiator
* @param responder ID of the responder
* @param connect_id the connect ID provided by the initiator
* @param key the initiator's key
* @param endpoints the initiator's endpoints
* @param is_initiator TRUE, if the caller of this method is the initiator
* @returns SUCCESS
*/
status_t (*set_initiator_data) (connect_manager_t *this,
identification_t *initiator,
identification_t *responder,
chunk_t connect_id, chunk_t key,
linked_list_t *endpoints,
bool is_initiator);
/**
* Updates a checklist and sets the responder's data. The checklist's
* state is advanced to WAITING which means that checks will be sent.
*
* @param connect_id the connect ID
* @param chunk_t the responder's key
* @param endpoints the responder's endpoints
* @returns
* - NOT_FOUND, if the checklist has not been found
* - SUCCESS, otherwise
*/
status_t (*set_responder_data) (connect_manager_t *this,
chunk_t connect_id, chunk_t key,
linked_list_t *endpoints);
/**
* Stops checks for a checklist. Called after the responder received an
* IKE_SA_INIT request which contains a ME_CONNECTID payload.
*
* @param connect_id the connect ID
* @returns
* - NOT_FOUND, if the checklist has not been found
* - SUCCESS, otherwise
*/
status_t (*stop_checks) (connect_manager_t *this, chunk_t connect_id);
/**
* Processes a connectivity check
*
* @param message the received message
*/
void (*process_check) (connect_manager_t *this, message_t *message);
/**
* Destroys the manager with all data.
*/
void (*destroy) (connect_manager_t *this);
};
/**
* Create a manager.
*
* @returns connect_manager_t object
*/
connect_manager_t *connect_manager_create(void);
#endif /** CONNECT_MANAGER_H_ @}*/
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