src/libcharon/plugins/ipseckey/ipseckey_plugin.c

   1 /*
   2  * Copyright (C) 2012 Reto Guadagnini
   3  * Hochschule fuer Technik Rapperswil
   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 "ipseckey_plugin.h"
  17
  18 #include <daemon.h>
  19 #include "ipseckey_cred.h"
  20
  21 typedef struct private_ipseckey_plugin_t private_ipseckey_plugin_t;
  22
  23
  24 /**
  25  * private data of the ipseckey plugin
  26  */
  27 struct private_ipseckey_plugin_t {
  28
  29         /**
  30          * implements plugin interface
  31          */
  32         ipseckey_plugin_t public;
  33
  34         /**
  35          * DNS resolver instance
  36          */
  37         resolver_t *res;
  38
  39         /**
  40          * credential set
  41          */
  42         ipseckey_cred_t *cred;
  43
  44         /**
  45          * IPSECKEY based authentication enabled
  46          */
  47         bool enabled;
  48 };
  49
  50 METHOD(plugin_t, get_name, char*,
  51         private_ipseckey_plugin_t *this)
  52 {
  53         return "ipseckey";
  54 }
  55
  56 METHOD(plugin_t, destroy, void,
  57         private_ipseckey_plugin_t *this)
  58 {
  59         if (this->enabled)
  60         {
  61                 lib->credmgr->remove_set(lib->credmgr, &this->cred->set);
  62         }
  63         DESTROY_IF(this->res);
  64         DESTROY_IF(this->cred);
  65         free(this);
  66 }
  67
  68 /*
  69  * see header file
  70  */
  71 plugin_t *ipseckey_plugin_create()
  72 {
  73         private_ipseckey_plugin_t *this;
  74
  75         INIT(this,
  76                 .public = {
  77                         .plugin = {
  78                                 .get_name = _get_name,
  79                                 .reload = (void*)return_false,
  80                                 .destroy = _destroy,
  81                         },
  82                 },
  83                 .res = lib->resolver->create(lib->resolver),
  84                 .enabled = lib->settings->get_bool(lib->settings,
  85                                                         "%s.plugins.ipseckey.enable", FALSE, charon->name),
  86         );
  87
  88         if (!this->res)
  89         {
  90                 DBG1(DBG_CFG, "failed to create a DNS resolver instance");
  91                 destroy(this);
  92                 return NULL;
  93         }
  94
  95         if (this->enabled)
  96         {
  97                 this->cred = ipseckey_cred_create(this->res);
  98                 lib->credmgr->add_set(lib->credmgr, &this->cred->set);
  99         }
 100
 101         return &this->public.plugin;
 102 }
 103