c1b4461d2e3871954429d319d3cb2c3b1adac3f6
[strongswan.git] / src / libcharon / plugins / sql / sql_plugin.c
1 /*
2 * Copyright (C) 2013 Tobias Brunner
3 * Copyright (C) 2008 Martin Willi
4 * Hochschule fuer Technik Rapperswil
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.
15 */
16
17 #include "sql_plugin.h"
18
19 #include <daemon.h>
20 #include <plugins/plugin_feature.h>
21
22 #include "sql_config.h"
23 #include "sql_cred.h"
24 #include "sql_logger.h"
25
26 typedef struct private_sql_plugin_t private_sql_plugin_t;
27
28 /**
29 * private data of sql plugin
30 */
31 struct private_sql_plugin_t {
32
33 /**
34 * implements plugin interface
35 */
36 sql_plugin_t public;
37
38 /**
39 * database connection instance
40 */
41 database_t *db;
42
43 /**
44 * configuration backend
45 */
46 sql_config_t *config;
47
48 /**
49 * credential set
50 */
51 sql_cred_t *cred;
52
53 /**
54 * bus listener/logger
55 */
56 sql_logger_t *logger;
57 };
58
59 METHOD(plugin_t, get_name, char*,
60 private_sql_plugin_t *this)
61 {
62 return "sql";
63 }
64
65 /**
66 * Connect to database
67 */
68 static bool open_database(private_sql_plugin_t *this,
69 plugin_feature_t *feature, bool reg, void *cb_data)
70 {
71 if (reg)
72 {
73 char *uri;
74
75 uri = lib->settings->get_str(lib->settings, "%s.plugins.sql.database",
76 NULL, charon->name);
77 if (!uri)
78 {
79 DBG1(DBG_CFG, "sql plugin: database URI not set");
80 return FALSE;
81 }
82
83 this->db = lib->db->create(lib->db, uri);
84 if (!this->db)
85 {
86 DBG1(DBG_CFG, "sql plugin failed to connect to database");
87 return FALSE;
88 }
89 this->config = sql_config_create(this->db);
90 this->cred = sql_cred_create(this->db);
91 this->logger = sql_logger_create(this->db);
92
93 charon->backends->add_backend(charon->backends, &this->config->backend);
94 lib->credmgr->add_set(lib->credmgr, &this->cred->set);
95 charon->bus->add_logger(charon->bus, &this->logger->logger);
96 }
97 else
98 {
99 charon->backends->remove_backend(charon->backends,
100 &this->config->backend);
101 lib->credmgr->remove_set(lib->credmgr, &this->cred->set);
102 charon->bus->remove_logger(charon->bus, &this->logger->logger);
103 this->config->destroy(this->config);
104 this->cred->destroy(this->cred);
105 this->logger->destroy(this->logger);
106 this->db->destroy(this->db);
107 }
108 return TRUE;
109 }
110
111 METHOD(plugin_t, get_features, int,
112 private_sql_plugin_t *this, plugin_feature_t *features[])
113 {
114 static plugin_feature_t f[] = {
115 PLUGIN_CALLBACK((plugin_feature_callback_t)open_database, NULL),
116 PLUGIN_PROVIDE(CUSTOM, "sql"),
117 PLUGIN_DEPENDS(DATABASE, DB_ANY),
118 };
119 *features = f;
120 return countof(f);
121 }
122
123 METHOD(plugin_t, destroy, void,
124 private_sql_plugin_t *this)
125 {
126 free(this);
127 }
128
129 /*
130 * see header file
131 */
132 plugin_t *sql_plugin_create()
133 {
134 private_sql_plugin_t *this;
135
136 INIT(this,
137 .public = {
138 .plugin = {
139 .get_name = _get_name,
140 .get_features = _get_features,
141 .destroy = _destroy,
142 },
143 },
144 );
145
146 return &this->public.plugin;
147 }