blob: df7a64fde2bcb643537d6c6e9cdbf8edd3fa71d1 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
|
/**
* @file create_child_sa.h
*
* @brief Interface of transaction create_child_sa.
*
*/
/*
* Copyright (C) 2006 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.
*/
#ifndef CREATE_CHILD_SA_H_
#define CREATE_CHILD_SA_H_
#include <sa/ike_sa.h>
#include <sa/child_sa.h>
#include <sa/transactions/transaction.h>
typedef struct create_child_sa_t create_child_sa_t;
/**
* @brief A transaction to create a new or rekey an existing CHILD_SA.
*
* Rekeying of an CHILD_SA works the same way as creating a new one,
* but includes an additional REKEY_SA notify and deletes the old
* one (in a separate transaction).
*
* ¦__________ _________¦
* ¦ Cyq \/ Czq ¦
* ¦__________/\_________¦
* detect ¦__________ _________¦ detect
* ¦ Czp \/ Czp ¦
* compare nonces, won ¦__________/\_________¦ compare nonces, lost
* ¦ ¦
* delete old ¦__________ ¦
* ¦ Dxq \__________¦
* ¦ __________¦
* ¦__________/ Dxp ¦
* ¦ __________¦ delete created
* ¦__________/ Dzq ¦
* ¦__________ ¦
* ¦ Dzp \__________¦
*
*
* @b Constructors:
* - create_child_sa_create()
* - transaction_create() with the appropriate message
*
* @ingroup transactions
*/
struct create_child_sa_t {
/**
* The transaction_t interface.
*/
transaction_t transaction;
/**
* @brief Set the CHILD_SA which gets rekeyed by the new one.
*
* If this transaction is used for rekeying, set the inbound
* SPI of the CHILD_SA which the new CHILD_SA rekeys.
*
* @param this calling object
* @param child_sa CHILD_SA to rekey
*/
void (*rekeys_child) (create_child_sa_t* this, child_sa_t *child_sa);
/**
* @brief Cancel a rekeying request.
*
* Cancelling a rekeying request will set a flag in the transaction. When
* the response for the transaction is received, the created CHILD_SA
* gets deleted afterwards.
*
* @param this calling object
* @param child_sa CHILD_SA to rekey
*/
void (*cancel) (create_child_sa_t* this);
};
/**
* @brief Create a new transaction which creates/rekeys CHILD_SAs.
*
* @param ike_sa assigned IKE_SA
* @return created create_child_sa transaction
*
* @ingroup transactions
*/
create_child_sa_t *create_child_sa_create(ike_sa_t *ike_sa);
#endif /* CREATE_CHILD_SA_H_ */
|
