plugins/wifi.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 <string.h>
  27 #include <dbus/dbus.h>
  28
  29 #include <connman/plugin.h>
  30 #include <connman/driver.h>
  31 #include <connman/log.h>
  32
  33 #include "supplicant.h"
  34
  35 struct wifi_data {
  36         GStaticMutex mutex;
  37         GSList *list;
  38 };
  39
  40 static struct connman_element *find_element(struct wifi_data *data,
  41                                                 const char *identifier)
  42 {
  43         GSList *list;
  44
  45         for (list = data->list; list; list = list->next) {
  46                 struct connman_element *element = list->data;
  47
  48                 if (element->network.identifier == NULL)
  49                         continue;
  50
  51                 if (g_str_equal(element->network.identifier,
  52                                                         identifier) == TRUE)
  53                         return element;
  54         }
  55
  56         return NULL;
  57 }
  58
  59 static void scan_result(struct connman_element *parent,
  60                                         struct supplicant_network *network)
  61 {
  62         struct wifi_data *data = connman_element_get_data(parent);
  63         struct connman_element *element;
  64         gchar *temp;
  65         int i;
  66
  67         DBG("network %p identifier %s", network, network->identifier);
  68
  69         if (data == NULL)
  70                 return;
  71
  72         if (network->identifier == NULL)
  73                 return;
  74
  75         if (network->identifier[0] == '\0')
  76                 return;
  77
  78         temp = g_strdup(network->identifier);
  79
  80         for (i = 0; i < strlen(temp); i++) {
  81                 if (temp[i] == ' ' || temp[i] == '.')
  82                         temp[i] = '_';
  83                 temp[i] = g_ascii_tolower(temp[i]);
  84         }
  85
  86         g_static_mutex_lock(&data->mutex);
  87
  88         element = find_element(data, temp);
  89         if (element == NULL) {
  90                 element = connman_element_create();
  91
  92                 element->type = CONNMAN_ELEMENT_TYPE_NETWORK;
  93                 element->name = temp;
  94
  95                 element->network.identifier = g_strdup(temp);
  96
  97                 data->list = g_slist_append(data->list, element);
  98
  99                 connman_element_add_static_property(element, "SSID",
 100                                 DBUS_TYPE_STRING, &network->identifier);
 101
 102                 connman_element_register(element, parent);
 103         } else
 104                 g_free(temp);
 105
 106         g_static_mutex_unlock(&data->mutex);
 107 }
 108
 109 static struct supplicant_callback wifi_callback = {
 110         .scan_result    = scan_result,
 111 };
 112
 113 static int wifi_probe(struct connman_element *element)
 114 {
 115         struct wifi_data *data;
 116         int err;
 117
 118         DBG("element %p name %s", element, element->name);
 119
 120         data = g_try_new0(struct wifi_data, 1);
 121         if (data == NULL)
 122                 return -ENOMEM;
 123
 124         g_static_mutex_init(&data->mutex);
 125
 126         connman_element_set_data(element, data);
 127
 128         err = __supplicant_start(element, &wifi_callback);
 129         if (err < 0)
 130                 return err;
 131
 132         __supplicant_scan(element);
 133
 134         return 0;
 135 }
 136
 137 static void wifi_remove(struct connman_element *element)
 138 {
 139         struct wifi_data *data = connman_element_get_data(element);
 140         GSList *list;
 141
 142         DBG("element %p name %s", element, element->name);
 143
 144         __supplicant_stop(element);
 145
 146         connman_element_set_data(element, NULL);
 147
 148         if (data == NULL)
 149                 return;
 150
 151         g_static_mutex_lock(&data->mutex);
 152
 153         for (list = data->list; list; list = list->next) {
 154                 struct connman_element *network = list->data;
 155
 156                 connman_element_unregister(network);
 157                 connman_element_unref(network);
 158         }
 159
 160         g_slist_free(data->list);
 161
 162         g_static_mutex_unlock(&data->mutex);
 163
 164         g_free(data);
 165 }
 166
 167 static struct connman_driver wifi_driver = {
 168         .name           = "wifi",
 169         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
 170         .subtype        = CONNMAN_ELEMENT_SUBTYPE_WIFI,
 171         .probe          = wifi_probe,
 172         .remove         = wifi_remove,
 173 };
 174
 175 static int wifi_init(void)
 176 {
 177         return connman_driver_register(&wifi_driver);
 178 }
 179
 180 static void wifi_exit(void)
 181 {
 182         connman_driver_unregister(&wifi_driver);
 183 }
 184
 185 CONNMAN_PLUGIN_DEFINE("WiFi", "WiFi interface plugin", VERSION,
 186                                                         wifi_init, wifi_exit)