radattr: Use plugin features to register listener
[strongswan.git] / src / libcharon / plugins / radattr / radattr_plugin.c
1 /*
2 * Copyright (C) 2012 Martin Willi
3 * Copyright (C) 2012 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 "radattr_plugin.h"
17
18 #include "radattr_listener.h"
19
20 #include <daemon.h>
21
22 typedef struct private_radattr_plugin_t private_radattr_plugin_t;
23
24 /**
25 * private data of radattr plugin
26 */
27 struct private_radattr_plugin_t {
28
29 /**
30 * implements plugin interface
31 */
32 radattr_plugin_t public;
33
34 /**
35 * Listener acting on messages
36 */
37 radattr_listener_t *listener;
38 };
39
40 METHOD(plugin_t, get_name, char*,
41 private_radattr_plugin_t *this)
42 {
43 return "radattr";
44 }
45
46 /**
47 * Register listener
48 */
49 static bool plugin_cb(private_radattr_plugin_t *this,
50 plugin_feature_t *feature, bool reg, void *cb_data)
51 {
52 if (reg)
53 {
54 charon->bus->add_listener(charon->bus, &this->listener->listener);
55 }
56 else
57 {
58 charon->bus->remove_listener(charon->bus, &this->listener->listener);
59 }
60 return TRUE;
61 }
62
63 METHOD(plugin_t, get_features, int,
64 private_radattr_plugin_t *this, plugin_feature_t *features[])
65 {
66 static plugin_feature_t f[] = {
67 PLUGIN_CALLBACK((plugin_feature_callback_t)plugin_cb, NULL),
68 PLUGIN_PROVIDE(CUSTOM, "radattr"),
69 };
70 *features = f;
71 return countof(f);
72 }
73
74 METHOD(plugin_t, destroy, void,
75 private_radattr_plugin_t *this)
76 {
77 this->listener->destroy(this->listener);
78 free(this);
79 }
80
81 /**
82 * Plugin constructor
83 */
84 plugin_t *radattr_plugin_create()
85 {
86 private_radattr_plugin_t *this;
87
88 INIT(this,
89 .public = {
90 .plugin = {
91 .get_name = _get_name,
92 .get_features = _get_features,
93 .destroy = _destroy,
94 },
95 },
96 .listener = radattr_listener_create(),
97 );
98
99 return &this->public.plugin;
100 }