6a12e9034649f34aaa191af843bff536b380ac8c
[strongswan.git] / src / libcharon / sa / ikev2 / tasks / ike_rekey.h
1 /*
2 * Copyright (C) 2007 Martin Willi
3 * 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 /**
17 * @defgroup ike_rekey ike_rekey
18 * @{ @ingroup tasks_v2
19 */
20
21 #ifndef IKE_REKEY_H_
22 #define IKE_REKEY_H_
23
24 typedef struct ike_rekey_t ike_rekey_t;
25
26 #include <library.h>
27 #include <sa/ike_sa.h>
28 #include <sa/task.h>
29
30 /**
31 * Task of type TASK_IKE_REKEY, rekey an established IKE_SA.
32 */
33 struct ike_rekey_t {
34
35 /**
36 * Implements the task_t interface
37 */
38 task_t task;
39
40 /**
41 * Register a rekeying task which collides with this one.
42 *
43 * If two peers initiate rekeying at the same time, the collision must
44 * be handled gracefully. The task manager is aware of what exchanges
45 * are going on and notifies the outgoing task by passing the incoming.
46 *
47 * @param other incoming task
48 */
49 void (*collide)(ike_rekey_t* this, task_t *other);
50 };
51
52 /**
53 * Create a new TASK_IKE_REKEY task.
54 *
55 * @param ike_sa IKE_SA this task works for
56 * @param initiator TRUE for initiator, FALSE for responder
57 * @return TASK_IKE_REKEY task to handle by the task_manager
58 */
59 ike_rekey_t *ike_rekey_create(ike_sa_t *ike_sa, bool initiator);
60
61 #endif /** IKE_REKEY_H_ @}*/