Annotation of embedaddon/strongswan/src/libcharon/plugins/updown/updown_plugin.c, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (C) 2008 Martin Willi
3: * HSR 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: #include "updown_plugin.h"
17: #include "updown_listener.h"
18: #include "updown_handler.h"
19:
20: #include <daemon.h>
21:
22: typedef struct private_updown_plugin_t private_updown_plugin_t;
23:
24: /**
25: * private data of updown plugin
26: */
27: struct private_updown_plugin_t {
28:
29: /**
30: * implements plugin interface
31: */
32: updown_plugin_t public;
33:
34: /**
35: * Listener interface, listens to CHILD_SA state changes
36: */
37: updown_listener_t *listener;
38:
39: /**
40: * Attribute handler, to pass DNS servers to updown
41: */
42: updown_handler_t *handler;
43: };
44:
45: METHOD(plugin_t, get_name, char*,
46: private_updown_plugin_t *this)
47: {
48: return "updown";
49: }
50:
51: /**
52: * Register listener
53: */
54: static bool plugin_cb(private_updown_plugin_t *this,
55: plugin_feature_t *feature, bool reg, void *cb_data)
56: {
57: if (reg)
58: {
59: if (lib->settings->get_bool(lib->settings,
60: "%s.plugins.updown.dns_handler", FALSE, lib->ns))
61: {
62: this->handler = updown_handler_create();
63: charon->attributes->add_handler(charon->attributes,
64: &this->handler->handler);
65: }
66: this->listener = updown_listener_create(this->handler);
67: charon->bus->add_listener(charon->bus, &this->listener->listener);
68: }
69: else
70: {
71: charon->bus->remove_listener(charon->bus, &this->listener->listener);
72: this->listener->destroy(this->listener);
73: if (this->handler)
74: {
75: this->handler->destroy(this->handler);
76: charon->attributes->remove_handler(charon->attributes,
77: &this->handler->handler);
78: }
79: }
80: return TRUE;
81: }
82:
83: METHOD(plugin_t, get_features, int,
84: private_updown_plugin_t *this, plugin_feature_t *features[])
85: {
86: static plugin_feature_t f[] = {
87: PLUGIN_CALLBACK((plugin_feature_callback_t)plugin_cb, NULL),
88: PLUGIN_PROVIDE(CUSTOM, "updown"),
89: };
90: *features = f;
91: return countof(f);
92: }
93:
94: METHOD(plugin_t, destroy, void,
95: private_updown_plugin_t *this)
96: {
97: free(this);
98: }
99:
100: /*
101: * see header file
102: */
103: plugin_t *updown_plugin_create()
104: {
105: private_updown_plugin_t *this;
106:
107: INIT(this,
108: .public = {
109: .plugin = {
110: .get_name = _get_name,
111: .get_features = _get_features,
112: .destroy = _destroy,
113: },
114: },
115: );
116:
117: return &this->public.plugin;
118: }
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