plugins/resolvconf.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2008  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <stdlib.h>
  27
  28 #include <connman/plugin.h>
  29 #include <connman/driver.h>
  30 #include <connman/log.h>
  31
  32 static int resolvconf_probe(struct connman_element *element)
  33 {
  34         const char *nameserver = NULL;
  35         struct connman_element *internet;
  36         gchar *cmd;
  37         int err;
  38
  39         DBG("element %p name %s", element, element->name);
  40
  41         connman_element_get_value(element,
  42                         CONNMAN_PROPERTY_TYPE_IPV4_NAMESERVER, &nameserver);
  43
  44         if (nameserver == NULL)
  45                 return -EINVAL;
  46
  47         cmd = g_strdup_printf("echo \"nameserver %s\" | resolvconf -a %s",
  48                                         nameserver, element->netdev.name);
  49
  50         DBG("%s", cmd);
  51
  52         err = system(cmd);
  53
  54         g_free(cmd);
  55
  56         internet = connman_element_create();
  57
  58         internet->type = CONNMAN_ELEMENT_TYPE_INTERNET;
  59
  60         connman_element_set_data(element, internet);
  61
  62         connman_element_register(internet, element);
  63
  64         return 0;
  65 }
  66
  67 static void resolvconf_remove(struct connman_element *element)
  68 {
  69         struct connman_element *internet = connman_element_get_data(element);
  70         gchar *cmd;
  71         int err;
  72
  73         DBG("element %p name %s", element, element->name);
  74
  75         DBG("element %p name %s", element, element->name);
  76
  77         connman_element_set_data(element, NULL);
  78
  79         connman_element_unregister(internet);
  80
  81         connman_element_unref(internet);
  82
  83         cmd = g_strdup_printf("resolvconf -d %s", element->netdev.name);
  84
  85         DBG("%s", cmd);
  86
  87         err = system(cmd);
  88
  89         g_free(cmd);
  90 }
  91
  92 static struct connman_driver resolvconf_driver = {
  93         .name           = "resolvconf",
  94         .type           = CONNMAN_ELEMENT_TYPE_RESOLVER,
  95         .probe          = resolvconf_probe,
  96         .remove         = resolvconf_remove,
  97 };
  98
  99 static int resolvconf_init(void)
 100 {
 101         return connman_driver_register(&resolvconf_driver);
 102 }
 103
 104 static void resolvconf_exit(void)
 105 {
 106         connman_driver_unregister(&resolvconf_driver);
 107 }
 108
 109 CONNMAN_PLUGIN_DEFINE("resolvconf", "Name resolver plugin", VERSION,
 110                                         resolvconf_init, resolvconf_exit)