src/libcharon/plugins/addrblock/addrblock_plugin.c

   1 /*
   2  * Copyright (C) 2010 Martin Willi
   3  *
   4  * Copyright (C) secunet Security Networks AG
   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 "addrblock_plugin.h"
  18
  19 #include <daemon.h>
  20 #include <plugins/plugin_feature.h>
  21
  22 #include "addrblock_validator.h"
  23 #include "addrblock_narrow.h"
  24
  25 typedef struct private_addrblock_plugin_t private_addrblock_plugin_t;
  26
  27 /**
  28  * private data of addrblock_plugin
  29  */
  30 struct private_addrblock_plugin_t {
  31
  32         /**
  33          * public functions
  34          */
  35         addrblock_plugin_t public;
  36
  37         /**
  38          * Validator implementation instance.
  39          */
  40         addrblock_validator_t *validator;
  41
  42         /**
  43          * Listener to check TS list
  44          */
  45         addrblock_narrow_t *narrower;
  46 };
  47
  48 METHOD(plugin_t, get_name, char*,
  49         private_addrblock_plugin_t *this)
  50 {
  51         return "addrblock";
  52 }
  53
  54 /**
  55  * Register listener
  56  */
  57 static bool plugin_cb(private_addrblock_plugin_t *this,
  58                                           plugin_feature_t *feature, bool reg, void *cb_data)
  59 {
  60         if (reg)
  61         {
  62                 lib->credmgr->add_validator(lib->credmgr, &this->validator->validator);
  63                 charon->bus->add_listener(charon->bus, &this->narrower->listener);
  64         }
  65         else
  66         {
  67                 charon->bus->remove_listener(charon->bus, &this->narrower->listener);
  68                 lib->credmgr->remove_validator(lib->credmgr,
  69                                                                            &this->validator->validator);
  70         }
  71         return TRUE;
  72 }
  73
  74 METHOD(plugin_t, get_features, int,
  75         private_addrblock_plugin_t *this, plugin_feature_t *features[])
  76 {
  77         static plugin_feature_t f[] = {
  78                 PLUGIN_CALLBACK((plugin_feature_callback_t)plugin_cb, NULL),
  79                         PLUGIN_PROVIDE(CUSTOM, "addrblock"),
  80                                 PLUGIN_SDEPEND(CERT_DECODE, CERT_X509),
  81         };
  82         *features = f;
  83         return countof(f);
  84 }
  85
  86 METHOD(plugin_t, destroy, void,
  87         private_addrblock_plugin_t *this)
  88 {
  89         this->narrower->destroy(this->narrower);
  90         this->validator->destroy(this->validator);
  91         free(this);
  92 }
  93
  94 /*
  95  * see header file
  96  */
  97 plugin_t *addrblock_plugin_create()
  98 {
  99         private_addrblock_plugin_t *this;
 100
 101         INIT(this,
 102                 .public = {
 103                         .plugin = {
 104                                 .get_name = _get_name,
 105                                 .get_features = _get_features,
 106                                 .destroy = _destroy,
 107                         },
 108                 },
 109                 .validator = addrblock_validator_create(),
 110                 .narrower = addrblock_narrow_create(),
 111         );
 112
 113         return &this->public.plugin;
 114 }