plugins/wifi.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  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 <errno.h>
  27 #include <net/if.h>
  28
  29 #ifndef IFF_LOWER_UP
  30 #define IFF_LOWER_UP    0x10000
  31 #endif
  32
  33 #include <dbus/dbus.h>
  34 #include <glib.h>
  35
  36 #define CONNMAN_API_SUBJECT_TO_CHANGE
  37 #include <connman/plugin.h>
  38 #include <connman/device.h>
  39 #include <connman/rtnl.h>
  40 #include <connman/log.h>
  41
  42 #include "supplicant.h"
  43
  44 #define CLEANUP_TIMEOUT   8     /* in seconds */
  45 #define INACTIVE_TIMEOUT  12    /* in seconds */
  46
  47 struct wifi_data {
  48         char *identifier;
  49         connman_bool_t connected;
  50         int index;
  51         unsigned flags;
  52         unsigned int watch;
  53 };
  54
  55 static int network_probe(struct connman_network *network)
  56 {
  57         DBG("network %p", network);
  58
  59         return 0;
  60 }
  61
  62 static void network_remove(struct connman_network *network)
  63 {
  64         DBG("network %p", network);
  65 }
  66
  67 static int network_connect(struct connman_network *network)
  68 {
  69         DBG("network %p", network);
  70
  71         return supplicant_connect(network);
  72 }
  73
  74 static int network_disconnect(struct connman_network *network)
  75 {
  76         DBG("network %p", network);
  77
  78         return supplicant_disconnect(network);
  79 }
  80
  81 static struct connman_network_driver network_driver = {
  82         .name           = "wifi",
  83         .type           = CONNMAN_NETWORK_TYPE_WIFI,
  84         .probe          = network_probe,
  85         .remove         = network_remove,
  86         .connect        = network_connect,
  87         .disconnect     = network_disconnect,
  88 };
  89
  90 static void wifi_newlink(unsigned flags, unsigned change, void *user_data)
  91 {
  92         struct connman_device *device = user_data;
  93         struct wifi_data *wifi = connman_device_get_data(device);
  94
  95         DBG("index %d flags %d change %d", wifi->index, flags, change);
  96
  97         if (!change)
  98                 return;
  99
 100         if ((wifi->flags & IFF_UP) != (flags & IFF_UP)) {
 101                 if (flags & IFF_UP) {
 102                         DBG("interface up");
 103                 } else {
 104                         DBG("interface down");
 105                 }
 106         }
 107
 108         if ((wifi->flags & IFF_LOWER_UP) != (flags & IFF_LOWER_UP)) {
 109                 if (flags & IFF_LOWER_UP) {
 110                         DBG("carrier on");
 111                 } else {
 112                         DBG("carrier off");
 113                 }
 114         }
 115
 116         wifi->flags = flags;
 117 }
 118
 119 static int wifi_probe(struct connman_device *device)
 120 {
 121         struct wifi_data *wifi;
 122
 123         DBG("device %p", device);
 124
 125         wifi = g_try_new0(struct wifi_data, 1);
 126         if (wifi == NULL)
 127                 return -ENOMEM;
 128
 129         wifi->connected = FALSE;
 130
 131         connman_device_set_data(device, wifi);
 132
 133         wifi->index = connman_device_get_index(device);
 134         wifi->flags = 0;
 135
 136         wifi->watch = connman_rtnl_add_newlink_watch(wifi->index,
 137                                                         wifi_newlink, device);
 138
 139         return 0;
 140 }
 141
 142 static void wifi_remove(struct connman_device *device)
 143 {
 144         struct wifi_data *wifi = connman_device_get_data(device);
 145
 146         DBG("device %p", device);
 147
 148         connman_device_set_data(device, NULL);
 149
 150         connman_rtnl_remove_watch(wifi->watch);
 151
 152         g_free(wifi->identifier);
 153         g_free(wifi);
 154 }
 155
 156 static int wifi_enable(struct connman_device *device)
 157 {
 158         DBG("device %p", device);
 159
 160         return supplicant_start(device);
 161 }
 162
 163 static int wifi_disable(struct connman_device *device)
 164 {
 165         struct wifi_data *wifi = connman_device_get_data(device);
 166
 167         DBG("device %p", device);
 168
 169         wifi->connected = FALSE;
 170
 171         return supplicant_stop(device);
 172 }
 173
 174 static int wifi_scan(struct connman_device *device)
 175 {
 176         DBG("device %p", device);
 177
 178         return supplicant_scan(device);
 179 }
 180
 181 static struct connman_device_driver wifi_driver = {
 182         .name           = "wifi",
 183         .type           = CONNMAN_DEVICE_TYPE_WIFI,
 184         .probe          = wifi_probe,
 185         .remove         = wifi_remove,
 186         .enable         = wifi_enable,
 187         .disable        = wifi_disable,
 188         .scan           = wifi_scan,
 189 };
 190
 191 static void wifi_register(void)
 192 {
 193         DBG("");
 194
 195         if (connman_device_driver_register(&wifi_driver) < 0)
 196                 connman_error("Failed to register WiFi driver");
 197 }
 198
 199 static void wifi_unregister(void)
 200 {
 201         DBG("");
 202
 203         connman_device_driver_unregister(&wifi_driver);
 204 }
 205
 206 static struct supplicant_driver supplicant = {
 207         .name           = "wifi",
 208         .probe          = wifi_register,
 209         .remove         = wifi_unregister,
 210 };
 211
 212 static int wifi_init(void)
 213 {
 214         int err;
 215
 216         err = connman_network_driver_register(&network_driver);
 217         if (err < 0)
 218                 return err;
 219
 220         err = supplicant_register(&supplicant);
 221         if (err < 0) {
 222                 connman_network_driver_unregister(&network_driver);
 223                 return err;
 224         }
 225
 226         return 0;
 227 }
 228
 229 static void wifi_exit(void)
 230 {
 231         supplicant_unregister(&supplicant);
 232
 233         connman_network_driver_unregister(&network_driver);
 234 }
 235
 236 CONNMAN_PLUGIN_DEFINE(wifi, "WiFi interface plugin", VERSION,
 237                 CONNMAN_PLUGIN_PRIORITY_DEFAULT, wifi_init, wifi_exit)