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1 | /* |
2 | * Copyright (C) 2008 Martin Willi | |
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3 | * |
4 | * Copyright (C) secunet Security Networks AG | |
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5 | * |
6 | * This program is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2 of the License, or (at your | |
9 | * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
13 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
14 | * for more details. | |
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15 | */ |
16 | ||
17 | #include "updown_plugin.h" | |
49653b6b | 18 | #include "updown_listener.h" |
e0d3014a | 19 | #include "updown_handler.h" |
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20 | |
21 | #include <daemon.h> | |
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22 | |
23 | typedef struct private_updown_plugin_t private_updown_plugin_t; | |
24 | ||
25 | /** | |
26 | * private data of updown plugin | |
27 | */ | |
28 | struct private_updown_plugin_t { | |
29 | ||
30 | /** | |
31 | * implements plugin interface | |
32 | */ | |
33 | updown_plugin_t public; | |
7daf5226 | 34 | |
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35 | /** |
36 | * Listener interface, listens to CHILD_SA state changes | |
37 | */ | |
49653b6b | 38 | updown_listener_t *listener; |
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39 | |
40 | /** | |
41 | * Attribute handler, to pass DNS servers to updown | |
42 | */ | |
43 | updown_handler_t *handler; | |
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44 | }; |
45 | ||
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46 | METHOD(plugin_t, get_name, char*, |
47 | private_updown_plugin_t *this) | |
48 | { | |
49 | return "updown"; | |
50 | } | |
51 | ||
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52 | /** |
53 | * Register listener | |
54 | */ | |
55 | static bool plugin_cb(private_updown_plugin_t *this, | |
56 | plugin_feature_t *feature, bool reg, void *cb_data) | |
ad3af574 | 57 | { |
49d333ac | 58 | if (reg) |
e0d3014a | 59 | { |
49d333ac | 60 | if (lib->settings->get_bool(lib->settings, |
d223fe80 | 61 | "%s.plugins.updown.dns_handler", FALSE, lib->ns)) |
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62 | { |
63 | this->handler = updown_handler_create(); | |
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64 | charon->attributes->add_handler(charon->attributes, |
65 | &this->handler->handler); | |
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66 | } |
67 | this->listener = updown_listener_create(this->handler); | |
68 | charon->bus->add_listener(charon->bus, &this->listener->listener); | |
e0d3014a | 69 | } |
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70 | else |
71 | { | |
72 | charon->bus->remove_listener(charon->bus, &this->listener->listener); | |
73 | this->listener->destroy(this->listener); | |
74 | if (this->handler) | |
75 | { | |
76 | this->handler->destroy(this->handler); | |
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77 | charon->attributes->remove_handler(charon->attributes, |
78 | &this->handler->handler); | |
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79 | } |
80 | } | |
81 | return TRUE; | |
82 | } | |
83 | ||
84 | METHOD(plugin_t, get_features, int, | |
85 | private_updown_plugin_t *this, plugin_feature_t *features[]) | |
86 | { | |
87 | static plugin_feature_t f[] = { | |
88 | PLUGIN_CALLBACK((plugin_feature_callback_t)plugin_cb, NULL), | |
89 | PLUGIN_PROVIDE(CUSTOM, "updown"), | |
90 | }; | |
91 | *features = f; | |
92 | return countof(f); | |
93 | } | |
94 | ||
95 | METHOD(plugin_t, destroy, void, | |
96 | private_updown_plugin_t *this) | |
97 | { | |
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98 | free(this); |
99 | } | |
100 | ||
101 | /* | |
102 | * see header file | |
103 | */ | |
9ce567f8 | 104 | plugin_t *updown_plugin_create() |
ad3af574 | 105 | { |
6e279171 | 106 | private_updown_plugin_t *this; |
7daf5226 | 107 | |
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108 | INIT(this, |
109 | .public = { | |
110 | .plugin = { | |
787b5884 | 111 | .get_name = _get_name, |
49d333ac | 112 | .get_features = _get_features, |
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113 | .destroy = _destroy, |
114 | }, | |
115 | }, | |
6e279171 | 116 | ); |
7daf5226 | 117 | |
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118 | return &this->public.plugin; |
119 | } |