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/**
* @file mediation_job.c
*
* @brief Implementation of mediation_job_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.
*/
#include "mediation_job.h"
#include <encoding/payloads/endpoint_notify.h>
#include <daemon.h>
typedef struct private_mediation_job_t private_mediation_job_t;
/**
* Private data of an mediation_job_t Object
*/
struct private_mediation_job_t {
/**
* public mediation_job_t interface
*/
mediation_job_t public;
/**
* ID of target peer.
*/
identification_t *target;
/**
* ID of the source peer.
*/
identification_t *source;
/**
* P2P_SESSIONID
*/
chunk_t session_id;
/**
* P2P_SESSIONKEY
*/
chunk_t session_key;
/**
* Submitted endpoints
*/
linked_list_t *endpoints;
/**
* Is this a callback job?
*/
bool callback;
/**
* Is this a response?
*/
bool response;
};
/**
* Implements job_t.destroy.
*/
static void destroy(private_mediation_job_t *this)
{
DESTROY_IF(this->target);
DESTROY_IF(this->source);
chunk_free(&this->session_id);
chunk_free(&this->session_key);
DESTROY_OFFSET_IF(this->endpoints, offsetof(endpoint_notify_t, destroy));
free(this);
}
/**
* Implementation of job_t.execute.
*/
static void execute(private_mediation_job_t *this)
{
ike_sa_id_t *target_sa_id;
target_sa_id = charon->mediation_manager->check(charon->mediation_manager, this->target);
if (target_sa_id)
{
ike_sa_t *target_sa = charon->ike_sa_manager->checkout(charon->ike_sa_manager,
target_sa_id);
if (target_sa)
{
if (this->callback)
{
/* send callback to a peer */
if (target_sa->callback(target_sa, this->source) != SUCCESS)
{
DBG1(DBG_JOB, "callback for '%D' to '%D' failed",
this->source, this->target);
charon->ike_sa_manager->checkin(charon->ike_sa_manager, target_sa);
destroy(this);
return;
}
}
else
{
/* normal mediation between two peers */
if (target_sa->relay(target_sa, this->source, this->session_id,
this->session_key, this->endpoints, this->response) != SUCCESS)
{
DBG1(DBG_JOB, "mediation between '%D' and '%D' failed",
this->source, this->target);
charon->ike_sa_manager->checkin(charon->ike_sa_manager, target_sa);
/* FIXME: notify the initiator */
destroy(this);
return;
}
}
charon->ike_sa_manager->checkin(charon->ike_sa_manager, target_sa);
}
else
{
DBG1(DBG_JOB, "mediation between '%D' and '%D' failed: "
"SA not found", this->source, this->target);
}
}
else
{
DBG1(DBG_JOB, "mediation between '%D' and '%D' failed: "
"peer is not online anymore", this->source, this->target);
}
destroy(this);
}
/**
* Creates an empty mediation job
*/
static private_mediation_job_t *mediation_job_create_empty()
{
private_mediation_job_t *this = malloc_thing(private_mediation_job_t);
/* interface functions */
this->public.job_interface.execute = (void (*) (job_t *)) execute;
this->public.job_interface.destroy = (void (*) (job_t *)) destroy;
/* private variables */
this->target = NULL;
this->source = NULL;
this->callback = FALSE;
this->session_id = chunk_empty;
this->session_key = chunk_empty;
this->endpoints = NULL;
this->response = FALSE;
return this;
}
/*
* Described in header
*/
mediation_job_t *mediation_job_create(identification_t *peer_id,
identification_t *requester, chunk_t session_id, chunk_t session_key,
linked_list_t *endpoints, bool response)
{
private_mediation_job_t *this = mediation_job_create_empty();
this->target = peer_id->clone(peer_id);
this->source = requester->clone(requester);
this->session_id = chunk_clone(session_id);
this->session_key = chunk_clone(session_key);
this->endpoints = endpoints->clone_offset(endpoints, offsetof(endpoint_notify_t, clone));
this->response = response;
return &this->public;
}
/*
* Described in header
*/
mediation_job_t *mediation_callback_job_create(identification_t *requester,
identification_t *peer_id)
{
private_mediation_job_t *this = mediation_job_create_empty();
this->target = requester->clone(requester);
this->source = peer_id->clone(peer_id);
this->callback = TRUE;
return &this->public;
}
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