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/**
* @file initiate_mediation_job.c
*
* @brief Implementation of initiate_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 "initiate_mediation_job.h"
#include <sa/ike_sa.h>
#include <daemon.h>
typedef struct private_initiate_mediation_job_t private_initiate_mediation_job_t;
/**
* Private data of an initiate_mediation_job_t Object
*/
struct private_initiate_mediation_job_t {
/**
* public initiate_mediation_job_t interface
*/
initiate_mediation_job_t public;
/**
* ID of the IKE_SA of the mediated connection.
*/
ike_sa_id_t *mediated_sa_id;
/**
* Child config of the CHILD_SA of the mediated connection.
*/
child_cfg_t *mediated_child;
/**
* ID of the IKE_SA of the mediation connection.
*/
ike_sa_id_t *mediation_sa_id;
};
/**
* Implements job_t.destroy.
*/
static void destroy(private_initiate_mediation_job_t *this)
{
DESTROY_IF(this->mediation_sa_id);
DESTROY_IF(this->mediated_sa_id);
DESTROY_IF(this->mediated_child);
free(this);
}
/**
* Callback to handle initiation of mediation connection
*/
static bool initiate_callback(private_initiate_mediation_job_t *this, signal_t signal, level_t level,
ike_sa_t *ike_sa, char *format, va_list args)
{
if (signal == CHILD_UP_SUCCESS)
{
// mediation connection is up
this->mediation_sa_id = ike_sa->get_id(ike_sa);
this->mediation_sa_id = this->mediation_sa_id->clone(this->mediation_sa_id);
return FALSE;
}
return TRUE;
}
/**
* Implementation of job_t.execute.
*/
static void initiate(private_initiate_mediation_job_t *this)
{//FIXME: check the logging
ike_sa_t *mediated_sa, *mediation_sa;
peer_cfg_t *mediated_cfg, *mediation_cfg;
mediated_sa = charon->ike_sa_manager->checkout(charon->ike_sa_manager,
this->mediated_sa_id);
if (mediated_sa)
{
mediated_cfg = mediated_sa->get_peer_cfg(mediated_sa);
mediated_cfg->get_ref(mediated_cfg); // get_peer_cfg returns an internal object
charon->ike_sa_manager->checkin(charon->ike_sa_manager, mediated_sa);
mediation_cfg = mediated_cfg->get_mediated_by(mediated_cfg);
if (charon->connect_manager->check_and_register(charon->connect_manager,
mediation_cfg->get_my_id(mediation_cfg),
mediated_cfg->get_peer_id(mediated_cfg),
this->mediated_sa_id, this->mediated_child))
{
mediated_cfg->destroy(mediated_cfg);
mediation_cfg->destroy(mediation_cfg);
charon->bus->set_sa(charon->bus, mediated_sa); // this pointer should still be valid
DBG1(DBG_IKE, "mediation with the same peer is already in progress, queued");
destroy(this);
return;
}
mediation_cfg->get_ref(mediation_cfg); // we need an additional reference because initiate consumes one
// this function call blocks until the connection is up or failed
// we do not check the status, but NEED_MORE would be returned on success
// because the registered callback returns FALSE then
// this->mediation_sa_id is set in the callback
charon->interfaces->initiate(charon->interfaces,
mediation_cfg, NULL, (interface_manager_cb_t)initiate_callback, this);
if (!this->mediation_sa_id)
{
DBG1(DBG_JOB, "initiating mediation connection '%s' failed",
mediation_cfg->get_name(mediation_cfg));
mediation_cfg->destroy(mediation_cfg);
mediated_cfg->destroy(mediated_cfg);
charon->bus->set_sa(charon->bus, mediated_sa); // this pointer should still be valid
SIG(IKE_UP_FAILED, "mediation failed");
destroy(this);
return;
}
mediation_cfg->destroy(mediation_cfg);
mediation_sa = charon->ike_sa_manager->checkout(charon->ike_sa_manager,
this->mediation_sa_id);
if (mediation_sa)
{
if (mediation_sa->initiate_mediation(mediation_sa, mediated_cfg) != SUCCESS)
{
DBG1(DBG_JOB, "initiating mediated connection '%s' failed",
mediated_cfg->get_name(mediated_cfg));
mediated_cfg->destroy(mediated_cfg);
charon->ike_sa_manager->checkin_and_destroy(charon->ike_sa_manager, mediation_sa);
charon->bus->set_sa(charon->bus, mediated_sa); // this pointer should still be valid
SIG(IKE_UP_FAILED, "mediation failed");
destroy(this);
return;
}
charon->ike_sa_manager->checkin(charon->ike_sa_manager, mediation_sa);
}
mediated_cfg->destroy(mediated_cfg);
}
destroy(this);
}
/**
* Implementation of job_t.execute.
*/
static void reinitiate(private_initiate_mediation_job_t *this)
{//FIXME: check the logging
ike_sa_t *mediated_sa, *mediation_sa;
peer_cfg_t *mediated_cfg;
mediated_sa = charon->ike_sa_manager->checkout(charon->ike_sa_manager,
this->mediated_sa_id);
if (mediated_sa)
{
mediated_cfg = mediated_sa->get_peer_cfg(mediated_sa);
mediated_cfg->get_ref(mediated_cfg); // get_peer_cfg returns an internal object
charon->ike_sa_manager->checkin(charon->ike_sa_manager, mediated_sa);
mediation_sa = charon->ike_sa_manager->checkout(charon->ike_sa_manager,
this->mediation_sa_id);
if (mediation_sa)
{
if (mediation_sa->initiate_mediation(mediation_sa, mediated_cfg) != SUCCESS)
{
DBG1(DBG_JOB, "initiating mediated connection '%s' failed",
mediated_cfg->get_name(mediated_cfg));
mediated_cfg->destroy(mediated_cfg);
charon->ike_sa_manager->checkin_and_destroy(charon->ike_sa_manager, mediation_sa);
charon->bus->set_sa(charon->bus, mediated_sa); // this pointer should still be valid
SIG(IKE_UP_FAILED, "mediation failed");
destroy(this);
return;
}
charon->ike_sa_manager->checkin(charon->ike_sa_manager, mediation_sa);
}
mediated_cfg->destroy(mediated_cfg);
}
destroy(this);
}
/**
* Creates an empty job
*/
static private_initiate_mediation_job_t *initiate_mediation_job_create_empty()
{
private_initiate_mediation_job_t *this = malloc_thing(private_initiate_mediation_job_t);
/* interface functions */
this->public.job_interface.destroy = (void (*) (job_t *)) destroy;
/* private variables */
this->mediation_sa_id = NULL;
this->mediated_sa_id = NULL;
this->mediated_child = NULL;
return this;
}
/*
* Described in header
*/
initiate_mediation_job_t *initiate_mediation_job_create(ike_sa_id_t *ike_sa_id,
child_cfg_t *child_cfg)
{
private_initiate_mediation_job_t *this = initiate_mediation_job_create_empty();
this->public.job_interface.execute = (void (*) (job_t *)) initiate;
this->mediated_sa_id = ike_sa_id->clone(ike_sa_id);
child_cfg->get_ref(child_cfg);
this->mediated_child = child_cfg;
return &this->public;
}
/*
* Described in header
*/
initiate_mediation_job_t *reinitiate_mediation_job_create(ike_sa_id_t *mediation_sa_id,
ike_sa_id_t *mediated_sa_id)
{
private_initiate_mediation_job_t *this = initiate_mediation_job_create_empty();
this->public.job_interface.execute = (void (*) (job_t *)) reinitiate;
this->mediation_sa_id = mediation_sa_id->clone(mediation_sa_id);
this->mediated_sa_id = mediated_sa_id->clone(mediated_sa_id);
return &this->public;
}
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