Annotation of embedaddon/strongswan/src/libcharon/sa/task_manager.c, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (C) 2011 Tobias Brunner
3: * HSR Hochschule fuer Technik Rapperswil
4: *
5: * This program is free software; you can redistribute it and/or modify it
6: * under the terms of the GNU General Public License as published by the
7: * Free Software Foundation; either version 2 of the License, or (at your
8: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
9: *
10: * This program is distributed in the hope that it will be useful, but
11: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13: * for more details.
14: */
15:
16: #include "task_manager.h"
17:
18: #include <math.h>
19: #include <sa/ikev1/task_manager_v1.h>
20: #include <sa/ikev2/task_manager_v2.h>
21:
22: /*
23: * See header
24: */
25: u_int task_manager_total_retransmit_timeout()
26: {
27: double timeout, base, limit = 0, total = 0;
28: int tries, i;
29:
30: tries = lib->settings->get_int(lib->settings, "%s.retransmit_tries",
31: RETRANSMIT_TRIES, lib->ns);
32: base = lib->settings->get_double(lib->settings, "%s.retransmit_base",
33: RETRANSMIT_BASE, lib->ns);
34: timeout = lib->settings->get_double(lib->settings, "%s.retransmit_timeout",
35: RETRANSMIT_TIMEOUT, lib->ns);
36: limit = lib->settings->get_double(lib->settings, "%s.retransmit_limit",
37: 0, lib->ns);
38:
39: for (i = 0; i <= tries; i++)
40: {
41: double interval = timeout * pow(base, i);
42: if (limit)
43: {
44: interval = min(interval, limit);
45: }
46: total += interval;
47: }
48: return (u_int)total;
49: }
50:
51: /*
52: * See header
53: */
54: task_manager_t *task_manager_create(ike_sa_t *ike_sa)
55: {
56: switch (ike_sa->get_version(ike_sa))
57: {
58: case IKEV1:
59: #ifdef USE_IKEV1
60: return &task_manager_v1_create(ike_sa)->task_manager;
61: #endif
62: break;
63: case IKEV2:
64: #ifdef USE_IKEV2
65: return &task_manager_v2_create(ike_sa)->task_manager;
66: #endif
67: break;
68: default:
69: break;
70: }
71: return NULL;
72: }
73:
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