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/**
* @file ike_p2p.h
*
* @brief Interface ike_p2p_t.
*
*/
/*
* Copyright (C) 2007 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.
*/
#ifndef IKE_P2P_H_
#define IKE_P2P_H_
typedef struct ike_p2p_t ike_p2p_t;
#include <library.h>
#include <sa/ike_sa.h>
#include <sa/tasks/task.h>
/**
* @brief Task of type IKE_P2P, detects and handles P2P-NAT-T extensions.
*
* This tasks handles the P2P_MEDIATION notify exchange to setup a mediation
* connection, allows to initiate mediated connections using P2P_CONNECT
* exchanges and to request reflexive addresses from the mediation server using
* P2P_ENDPOINT notifies.
*
* @note This task has to be activated before the IKE_AUTH task, because that
* task generates the IKE_SA_INIT message so that no more payloads can be added
* to it afterwards.
*
* @b Constructors:
* - ike_p2p_create()
*
* @ingroup tasks
*/
struct ike_p2p_t {
/**
* Implements the task_t interface
*/
task_t task;
/**
* @brief Initiates a connection with another peer (i.e. sends a P2P_CONNECT
* to the mediation server)
*
* @param this object
* @param peer_id ID of the other peer (gets cloned)
*/
void (*connect)(ike_p2p_t *this, identification_t *peer_id);
/**
* @brief Responds to a P2P_CONNECT from another peer (i.e. sends a P2P_CONNECT
* to the mediation server)
*
* @param this object
* @param peer_id ID of the other peer (gets cloned)
* @param session_id the session ID as provided by the initiator (gets cloned)
*/
void (*respond)(ike_p2p_t *this, identification_t *peer_id, chunk_t session_id);
/**
* @brief Sends a P2P_CALLBACK to a peer that previously requested another peer.
*
* @param this object
* @param peer_id ID of the other peer (gets cloned)
*/
void (*callback)(ike_p2p_t *this, identification_t *peer_id);
/**
* @brief Relays data to another peer (i.e. sends a P2P_CONNECT to the peer)
*
* Data gets cloned.
*
* @param this object
* @param requester ID of the requesting peer
* @param session_id content of the P2P_SESSIONID notify
* @param session_key content of the P2P_SESSIONKEY notify
* @param endpoints endpoints
* @param response TRUE if this is a response
*/
void (*relay)(ike_p2p_t *this, identification_t *requester, chunk_t session_id,
chunk_t session_key, linked_list_t *endpoints, bool response);
};
/**
* @brief Create a new ike_p2p task.
*
* @param ike_sa IKE_SA this task works for
* @param initiator TRUE if taks is initiated by us
* @return ike_p2p task to handle by the task_manager
*/
ike_p2p_t *ike_p2p_create(ike_sa_t *ike_sa, bool initiator);
#endif /*IKE_P2P_H_*/
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