Implemented a hook to set reserved bits
[strongswan.git] / src / conftest / hooks / set_ike_request.c
1 /*
2 * Copyright (C) 2010 Martin Willi
3 * Copyright (C) 2010 revosec AG
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 "hook.h"
17
18 #include <encoding/payloads/unknown_payload.h>
19
20 typedef struct private_set_ike_request_t private_set_ike_request_t;
21
22 /**
23 * Private data of an set_ike_request_t object.
24 */
25 struct private_set_ike_request_t {
26
27 /**
28 * Implements the hook_t interface.
29 */
30 hook_t hook;
31
32 /**
33 * Alter requests or responses?
34 */
35 bool req;
36
37 /**
38 * ID of message to alter.
39 */
40 int id;
41 };
42
43 METHOD(listener_t, message, bool,
44 private_set_ike_request_t *this, ike_sa_t *ike_sa, message_t *message,
45 bool incoming)
46 {
47 if (!incoming &&
48 message->get_request(message) == this->req &&
49 message->get_message_id(message) == this->id)
50 {
51 DBG1(DBG_CFG, "toggling IKE message request flag");
52 message->set_request(message, !this->req);
53 }
54 return TRUE;
55 }
56
57 METHOD(hook_t, destroy, void,
58 private_set_ike_request_t *this)
59 {
60 free(this);
61 }
62
63 /**
64 * Create the IKE_AUTH fill hook
65 */
66 hook_t *set_ike_request_hook_create(char *name)
67 {
68 private_set_ike_request_t *this;
69
70 INIT(this,
71 .hook = {
72 .listener = {
73 .message = _message,
74 },
75 .destroy = _destroy,
76 },
77 .req = conftest->test->get_bool(conftest->test,
78 "hooks.%s.request", TRUE, name),
79 .id = conftest->test->get_int(conftest->test,
80 "hooks.%s.id", 0, name),
81 );
82
83 return &this->hook;
84 }