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