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Annotation of embedaddon/strongswan/src/libcharon/plugins/medcli/medcli_plugin.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (C) 2013 Tobias Brunner
                      3:  * Copyright (C) 2008 Martin Willi
                      4:  * HSR 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 "medcli_plugin.h"
                     18: 
                     19: #include "medcli_creds.h"
                     20: #include "medcli_config.h"
                     21: #include "medcli_listener.h"
                     22: 
                     23: #include <daemon.h>
                     24: 
                     25: typedef struct private_medcli_plugin_t private_medcli_plugin_t;
                     26: 
                     27: /**
                     28:  * private data of medcli plugin
                     29:  */
                     30: struct private_medcli_plugin_t {
                     31: 
                     32:        /**
                     33:         * implements plugin interface
                     34:         */
                     35:        medcli_plugin_t public;
                     36: 
                     37:        /**
                     38:         * database connection instance
                     39:         */
                     40:        database_t *db;
                     41: 
                     42:        /**
                     43:         * medcli credential set instance
                     44:         */
                     45:        medcli_creds_t *creds;
                     46: 
                     47:        /**
                     48:         * medcli config database
                     49:         */
                     50:        medcli_config_t *config;
                     51: 
                     52:        /**
                     53:         * Listener to update database connection state
                     54:         */
                     55:        medcli_listener_t *listener;
                     56: };
                     57: 
                     58: METHOD(plugin_t, get_name, char*,
                     59:        private_medcli_plugin_t *this)
                     60: {
                     61:        return "medcli";
                     62: }
                     63: 
                     64: /**
                     65:  * Connect to database
                     66:  */
                     67: static bool open_database(private_medcli_plugin_t *this,
                     68:                                                  plugin_feature_t *feature, bool reg, void *cb_data)
                     69: {
                     70:        if (reg)
                     71:        {
                     72:                char *uri;
                     73: 
                     74:                uri = lib->settings->get_str(lib->settings,
                     75:                                                                         "medcli.database", NULL);
                     76:                if (!uri)
                     77:                {
                     78:                        DBG1(DBG_CFG, "mediation client database URI not defined, skipped");
                     79:                        return FALSE;
                     80:                }
                     81: 
                     82:                this->db = lib->db->create(lib->db, uri);
                     83:                if (this->db == NULL)
                     84:                {
                     85:                        DBG1(DBG_CFG, "opening mediation client database failed");
                     86:                        return FALSE;
                     87:                }
                     88: 
                     89:                this->creds = medcli_creds_create(this->db);
                     90:                this->config = medcli_config_create(this->db);
                     91:                this->listener = medcli_listener_create(this->db);
                     92: 
                     93:                lib->credmgr->add_set(lib->credmgr, &this->creds->set);
                     94:                charon->backends->add_backend(charon->backends, &this->config->backend);
                     95:                charon->bus->add_listener(charon->bus, &this->listener->listener);
                     96:        }
                     97:        else
                     98:        {
                     99:                charon->bus->remove_listener(charon->bus, &this->listener->listener);
                    100:                charon->backends->remove_backend(charon->backends, &this->config->backend);
                    101:                lib->credmgr->remove_set(lib->credmgr, &this->creds->set);
                    102:                this->listener->destroy(this->listener);
                    103:                this->config->destroy(this->config);
                    104:                this->creds->destroy(this->creds);
                    105:                this->db->destroy(this->db);
                    106:        }
                    107:        return TRUE;
                    108: }
                    109: 
                    110: METHOD(plugin_t, get_features, int,
                    111:        private_medcli_plugin_t *this, plugin_feature_t *features[])
                    112: {
                    113:        static plugin_feature_t f[] = {
                    114:                PLUGIN_CALLBACK((plugin_feature_callback_t)open_database, NULL),
                    115:                        PLUGIN_PROVIDE(CUSTOM, "medcli"),
                    116:                                PLUGIN_DEPENDS(DATABASE, DB_ANY),
                    117:        };
                    118:        *features = f;
                    119:        return countof(f);
                    120: }
                    121: 
                    122: METHOD(plugin_t, destroy, void,
                    123:        private_medcli_plugin_t *this)
                    124: {
                    125:        free(this);
                    126: }
                    127: 
                    128: /*
                    129:  * see header file
                    130:  */
                    131: plugin_t *medcli_plugin_create()
                    132: {
                    133:        private_medcli_plugin_t *this;
                    134: 
                    135:        INIT(this,
                    136:                .public = {
                    137:                        .plugin = {
                    138:                                .get_name = _get_name,
                    139:                                .get_features = _get_features,
                    140:                                .destroy = _destroy,
                    141:                        },
                    142:                },
                    143:        );
                    144: 
                    145:        return &this->public.plugin;
                    146: }