b611ade68fc8cc9eead2a8405014e19f9edd9320
[strongswan.git] / src / libcharon / sa / tasks / ike_init.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_init ike_init
18 * @{ @ingroup tasks
19 */
20
21 #ifndef IKE_INIT_H_
22 #define IKE_INIT_H_
23
24 typedef struct ike_init_t ike_init_t;
25
26 #include <library.h>
27 #include <sa/ike_sa.h>
28 #include <sa/tasks/task.h>
29
30 /**
31 * Task of type IKE_INIT, creates an IKE_SA without authentication.
32 *
33 * The authentication of is handle in the ike_auth task.
34 */
35 struct ike_init_t {
36
37 /**
38 * Implements the task_t interface
39 */
40 task_t task;
41
42 /**
43 * Get the lower of the two nonces, used for rekey collisions.
44 *
45 * @return lower nonce
46 */
47 chunk_t (*get_lower_nonce) (ike_init_t *this);
48 };
49
50 /**
51 * Create a new IKE_INIT task.
52 *
53 * @param ike_sa IKE_SA this task works for (new one when rekeying)
54 * @param initiator TRUE if thask is the original initiator
55 * @param old_sa old IKE_SA when we are rekeying
56 * @return ike_init task to handle by the task_manager
57 */
58 ike_init_t *ike_init_create(ike_sa_t *ike_sa, bool initiator, ike_sa_t *old_sa);
59
60 #endif /** IKE_INIT_H_ @}*/