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Annotation of embedaddon/strongswan/src/libcharon/plugins/forecast/forecast_plugin.c, revision 1.1.1.1

1.1       misho       1: /*
                      2:  * Copyright (C) 2010-2014 Martin Willi
                      3:  * Copyright (C) 2010-2014 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 "forecast_plugin.h"
                     17: #include "forecast_listener.h"
                     18: #include "forecast_forwarder.h"
                     19: 
                     20: #include <daemon.h>
                     21: 
                     22: typedef struct private_forecast_plugin_t private_forecast_plugin_t;
                     23: 
                     24: /**
                     25:  * Private data of forecast plugin
                     26:  */
                     27: struct private_forecast_plugin_t {
                     28: 
                     29:        /**
                     30:         * implements plugin interface
                     31:         */
                     32:        forecast_plugin_t public;
                     33: 
                     34:        /**
                     35:         * Listener registering active tunnels
                     36:         */
                     37:        forecast_listener_t *listener;
                     38: 
                     39:        /**
                     40:         * Broadcast/Multicast sniffer and forwarder
                     41:         */
                     42:        forecast_forwarder_t *forwarder;
                     43: };
                     44: 
                     45: METHOD(plugin_t, get_name, char*,
                     46:        private_forecast_plugin_t *this)
                     47: {
                     48:        return "forecast";
                     49: }
                     50: 
                     51: /**
                     52:  * Register plugin features
                     53:  */
                     54: static bool register_forecast(private_forecast_plugin_t *this,
                     55:                                                          plugin_feature_t *feature, bool reg, void *data)
                     56: {
                     57:        if (reg)
                     58:        {
                     59:                this->forwarder = forecast_forwarder_create(this->listener);
                     60:                if (!this->forwarder)
                     61:                {
                     62:                        return FALSE;
                     63:                }
                     64:                charon->bus->add_listener(charon->bus, &this->listener->listener);
                     65:        }
                     66:        else
                     67:        {
                     68:                charon->bus->remove_listener(charon->bus, &this->listener->listener);
                     69:                this->forwarder->destroy(this->forwarder);
                     70:        }
                     71:        return TRUE;
                     72: }
                     73: 
                     74: METHOD(plugin_t, get_features, int,
                     75:        private_forecast_plugin_t *this, plugin_feature_t *features[])
                     76: {
                     77:        static plugin_feature_t f[] = {
                     78:                PLUGIN_CALLBACK((plugin_feature_callback_t)register_forecast, NULL),
                     79:                        PLUGIN_PROVIDE(CUSTOM, "forecast"),
                     80:        };
                     81:        *features = f;
                     82:        return countof(f);
                     83: }
                     84: 
                     85: METHOD(plugin_t, destroy, void,
                     86:        private_forecast_plugin_t *this)
                     87: {
                     88:        this->listener->destroy(this->listener);
                     89:        free(this);
                     90: }
                     91: 
                     92: /**
                     93:  * Plugin constructor
                     94:  */
                     95: plugin_t *forecast_plugin_create()
                     96: {
                     97:        private_forecast_plugin_t *this;
                     98: 
                     99:        if (!lib->caps->keep(lib->caps, CAP_NET_RAW))
                    100:        {
                    101:                DBG1(DBG_NET, "forecast plugin requires CAP_NET_RAW capability");
                    102:                return NULL;
                    103:        }
                    104: 
                    105:        INIT(this,
                    106:                .public = {
                    107:                        .plugin = {
                    108:                                .get_name = _get_name,
                    109:                                .get_features = _get_features,
                    110:                                .reload = (void*)return_false,
                    111:                                .destroy = _destroy,
                    112:                        },
                    113:                },
                    114:                .listener = forecast_listener_create(),
                    115:        );
                    116: 
                    117:        return &this->public.plugin;
                    118: }