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/**
* @file retransmit_request_job.c
*
* @brief Implementation of retransmit_request_job_t.
*
*/
/*
* Copyright (C) 2005 Jan Hutter, Martin Willi
* 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 "retransmit_request_job.h"
#include <daemon.h>
typedef struct private_retransmit_request_job_t private_retransmit_request_job_t;
/**
* Private data of an retransmit_request_job_t Object.
*/
struct private_retransmit_request_job_t {
/**
* Public retransmit_request_job_t interface.
*/
retransmit_request_job_t public;
/**
* Message ID of the request to resend.
*/
u_int32_t message_id;
/**
* ID of the IKE_SA which the message belongs to.
*/
ike_sa_id_t *ike_sa_id;
/**
* Number of times a request was retransmitted
*/
u_int32_t retransmit_count;
/**
* Logger reference
*/
logger_t *logger;
};
/**
* Implements job_t.get_type.
*/
static job_type_t get_type(private_retransmit_request_job_t *this)
{
return RETRANSMIT_REQUEST;
}
/**
* Implementation of job_t.execute.
*/
static status_t execute(private_retransmit_request_job_t *this)
{
bool stop_retransmitting = FALSE;
u_int32_t timeout;
ike_sa_t *ike_sa;
status_t status;
this->logger->log(this->logger, CONTROL|LEVEL2, "Checking out IKE SA %lld:%lld, role %s",
this->ike_sa_id->get_initiator_spi(this->ike_sa_id),
this->ike_sa_id->get_responder_spi(this->ike_sa_id),
this->ike_sa_id->is_initiator(this->ike_sa_id) ? "initiator" : "responder");
status = charon->ike_sa_manager->checkout(charon->ike_sa_manager, this->ike_sa_id, &ike_sa);
if ((status != SUCCESS) && (status != CREATED))
{
this->logger->log(this->logger, ERROR|LEVEL1,
"IKE SA could not be checked out. Already deleted?");
return DESTROY_ME;
}
status = ike_sa->retransmit_request(ike_sa, this->message_id);
if (status != SUCCESS)
{
this->logger->log(this->logger, CONTROL|LEVEL3,
"Message doesn't have to be retransmitted");
stop_retransmitting = TRUE;
}
this->logger->log(this->logger, CONTROL|LEVEL2, "Checkin IKE SA %lld:%lld, role %s",
this->ike_sa_id->get_initiator_spi(this->ike_sa_id),
this->ike_sa_id->get_responder_spi(this->ike_sa_id),
this->ike_sa_id->is_initiator(this->ike_sa_id) ? "initiator" : "responder");
status = charon->ike_sa_manager->checkin(charon->ike_sa_manager, ike_sa);
if (status != SUCCESS)
{
this->logger->log(this->logger, ERROR, "Checkin of IKE SA failed!");
}
if (stop_retransmitting)
{
return DESTROY_ME;
}
this->retransmit_count++;
status = charon->configuration->get_retransmit_timeout(charon->configuration,
this->retransmit_count, &timeout);
if (status != SUCCESS)
{
this->logger->log(this->logger, CONTROL|LEVEL2, "Message will not be retransmitted anymore");
return DESTROY_ME;
}
charon->event_queue->add_relative(charon->event_queue, (job_t *)this, timeout);
return SUCCESS;
}
/**
* Implements job_t.destroy.
*/
static void destroy(private_retransmit_request_job_t *this)
{
this->ike_sa_id->destroy(this->ike_sa_id);
free(this);
}
/*
* Described in header.
*/
retransmit_request_job_t *retransmit_request_job_create(u_int32_t message_id,ike_sa_id_t *ike_sa_id)
{
private_retransmit_request_job_t *this = malloc_thing(private_retransmit_request_job_t);
/* interface functions */
this->public.job_interface.get_type = (job_type_t (*) (job_t *)) get_type;
this->public.job_interface.execute = (status_t (*) (job_t *)) execute;
this->public.job_interface.destroy = (void (*) (job_t *)) destroy;
/* private variables */
this->message_id = message_id;
this->retransmit_count = 0;
this->ike_sa_id = ike_sa_id->clone(ike_sa_id);
this->logger = logger_manager->get_logger(logger_manager, WORKER);
return &(this->public);
}
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