83 lines
2.0 KiB
C
83 lines
2.0 KiB
C
/*
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* Copyright (C) 2011 Tobias Brunner
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* HSR Hochschule fuer Technik Rapperswil
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*/
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#include "task_manager.h"
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#include <math.h>
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#include <sa/ikev1/task_manager_v1.h>
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#include <sa/ikev2/task_manager_v2.h>
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/*
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* See header
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*/
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u_int task_manager_total_retransmit_timeout()
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{
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double timeout, base, limit = 0, total = 0;
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int tries, max_tries = 0, i;
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tries = lib->settings->get_int(lib->settings, "%s.retransmit_tries",
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RETRANSMIT_TRIES, lib->ns);
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base = lib->settings->get_double(lib->settings, "%s.retransmit_base",
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RETRANSMIT_BASE, lib->ns);
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timeout = lib->settings->get_double(lib->settings, "%s.retransmit_timeout",
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RETRANSMIT_TIMEOUT, lib->ns);
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limit = lib->settings->get_double(lib->settings, "%s.retransmit_limit",
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0, lib->ns);
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if (base > 1)
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{
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max_tries = log(UINT32_MAX/(1000.0 * timeout))/log(base);
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}
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for (i = 0; i <= tries; i++)
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{
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double interval = UINT32_MAX/1000.0;
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if (max_tries && i <= max_tries)
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{
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interval = timeout * pow(base, i);
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}
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if (limit)
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{
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interval = min(interval, limit);
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}
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total += interval;
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}
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return (u_int)total;
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}
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/*
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* See header
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*/
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task_manager_t *task_manager_create(ike_sa_t *ike_sa)
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{
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switch (ike_sa->get_version(ike_sa))
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{
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case IKEV1:
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#ifdef USE_IKEV1
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return &task_manager_v1_create(ike_sa)->task_manager;
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#endif
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break;
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case IKEV2:
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#ifdef USE_IKEV2
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return &task_manager_v2_create(ike_sa)->task_manager;
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#endif
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break;
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default:
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break;
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}
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return NULL;
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}
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