git.maemo.org Git - connman/blob - plugins/bluetooth.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 <errno.h>
  27
  28 #include <gdbus.h>
  29
  30 #include <connman/plugin.h>
  31 #include <connman/device.h>
  32 #include <connman/log.h>
  33
  34 #define BLUEZ_SERVICE                   "org.bluez"
  35 #define BLUEZ_MANAGER_INTERFACE         BLUEZ_SERVICE ".Manager"
  36 #define BLUEZ_ADAPTER_INTERFACE         BLUEZ_SERVICE ".Adapter"
  37
  38 #define ADAPTER_ADDED                   "AdapterAdded"
  39 #define ADAPTER_REMOVED                 "AdapterRemoved"
  40 #define PROPERTY_CHANGED                "PropertyChanged"
  41
  42 #define TIMEOUT 5000
  43
  44 static int bluetooth_probe(struct connman_device *device)
  45 {
  46         DBG("device %p", device);
  47
  48         return 0;
  49 }
  50
  51 static void bluetooth_remove(struct connman_device *device)
  52 {
  53         DBG("device %p", device);
  54 }
  55
  56 static struct connman_device_driver bluetooth_driver = {
  57         .name   = "bluetooth",
  58         .type   = CONNMAN_DEVICE_TYPE_BLUETOOTH,
  59         .probe  = bluetooth_probe,
  60         .remove = bluetooth_remove,
  61 };
  62
  63 static GSList *device_list = NULL;
  64
  65 static void property_changed(DBusMessage *msg)
  66 {
  67         DBG("");
  68 }
  69
  70 static struct connman_element *find_adapter(const char *path)
  71 {
  72         const char *devname = g_basename(path);
  73         GSList *list;
  74
  75         DBG("path %s", path);
  76
  77         for (list = device_list; list; list = list->next) {
  78                 struct connman_element *device = list->data;
  79
  80                 if (g_str_equal(device->devname, devname) == TRUE)
  81                         return device;
  82         }
  83
  84         return NULL;
  85 }
  86
  87 static void add_adapter(const char *path)
  88 {
  89         struct connman_element *device;
  90
  91         DBG("path %s", path);
  92
  93         device = find_adapter(path);
  94         if (device != NULL)
  95                 return;
  96
  97         device = connman_element_create(NULL);
  98         device->type = CONNMAN_ELEMENT_TYPE_DEVICE;
  99         device->subtype = CONNMAN_ELEMENT_SUBTYPE_BLUETOOTH;
 100
 101         device->name = g_path_get_basename(path);
 102
 103         connman_element_register(device, NULL);
 104         device_list = g_slist_append(device_list, device);
 105 }
 106
 107 static void remove_adapter(const char *path)
 108 {
 109         struct connman_element *device;
 110
 111         DBG("path %s", path);
 112
 113         device = find_adapter(path);
 114         if (device == NULL)
 115                 return;
 116
 117         device_list = g_slist_remove(device_list, device);
 118
 119         connman_element_unregister(device);
 120         connman_element_unref(device);
 121 }
 122
 123 static void adapters_reply(DBusPendingCall *call, void *user_data)
 124 {
 125         DBusMessage *reply;
 126         DBusError error;
 127         char **adapters;
 128         int i, num_adapters;
 129
 130         DBG("");
 131
 132         reply = dbus_pending_call_steal_reply(call);
 133
 134         dbus_error_init(&error);
 135
 136         if (dbus_message_get_args(reply, &error,
 137                                 DBUS_TYPE_ARRAY, DBUS_TYPE_OBJECT_PATH,
 138                                                 &adapters, &num_adapters,
 139                                                 DBUS_TYPE_INVALID) == FALSE) {
 140                 if (dbus_error_is_set(&error) == TRUE) {
 141                         connman_error("%s", error.message);
 142                         dbus_error_free(&error);
 143                 } else
 144                         connman_error("Wrong arguments for adapter list");
 145                 goto done;
 146         }
 147
 148         for (i = 0; i < num_adapters; i++)
 149                 add_adapter(adapters[i]);
 150
 151         g_strfreev(adapters);
 152
 153 done:
 154         dbus_message_unref(reply);
 155 }
 156
 157 static void bluetooth_connect(DBusConnection *connection, void *user_data)
 158 {
 159         DBusMessage *message;
 160         DBusPendingCall *call;
 161
 162         DBG("connection %p", connection);
 163
 164         message = dbus_message_new_method_call(BLUEZ_SERVICE, "/",
 165                                 BLUEZ_MANAGER_INTERFACE, "ListAdapters");
 166         if (message == NULL)
 167                 return;
 168
 169         if (dbus_connection_send_with_reply(connection, message,
 170                                                 &call, TIMEOUT) == FALSE) {
 171                 connman_error("Failed to get Bluetooth adapters");
 172                 dbus_message_unref(message);
 173                 return;
 174         }
 175
 176         dbus_pending_call_set_notify(call, adapters_reply, NULL, NULL);
 177
 178         dbus_message_unref(message);
 179 }
 180
 181 static void bluetooth_disconnect(DBusConnection *connection, void *user_data)
 182 {
 183         GSList *list;
 184
 185         DBG("connection %p", connection);
 186
 187         for (list = device_list; list; list = list->next) {
 188                 struct connman_element *device = list->data;
 189
 190                 connman_element_unregister(device);
 191                 connman_element_unref(device);
 192         }
 193
 194         g_slist_free(device_list);
 195         device_list = NULL;
 196 }
 197
 198 static DBusHandlerResult bluetooth_signal(DBusConnection *conn,
 199                                                 DBusMessage *msg, void *data)
 200 {
 201         DBG("connection %p", conn);
 202
 203         if (dbus_message_is_signal(msg, BLUEZ_ADAPTER_INTERFACE,
 204                                                 PROPERTY_CHANGED) == TRUE) {
 205                 property_changed(msg);
 206         } else if (dbus_message_is_signal(msg, BLUEZ_MANAGER_INTERFACE,
 207                                                 ADAPTER_ADDED) == TRUE) {
 208                 const char *path;
 209                 dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 210                                                         DBUS_TYPE_INVALID);
 211                 add_adapter(path);
 212         } else if (dbus_message_is_signal(msg, BLUEZ_MANAGER_INTERFACE,
 213                                                 ADAPTER_REMOVED) == TRUE) {
 214                 const char *path;
 215                 dbus_message_get_args(msg, NULL, DBUS_TYPE_OBJECT_PATH, &path,
 216                                                         DBUS_TYPE_INVALID);
 217                 remove_adapter(path);
 218         }
 219
 220         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 221 }
 222
 223 static DBusConnection *connection;
 224 static guint watch;
 225
 226 static const char *added_rule = "type=signal,member=" ADAPTER_ADDED
 227                                         ",interface=" BLUEZ_MANAGER_INTERFACE;
 228 static const char *removed_rule = "type=signal,member=" ADAPTER_REMOVED
 229                                         ",interface=" BLUEZ_MANAGER_INTERFACE;
 230
 231 static const char *adapter_rule = "type=signal,member=" PROPERTY_CHANGED
 232                                         ",interface=" BLUEZ_ADAPTER_INTERFACE;
 233
 234 static int bluetooth_init(void)
 235 {
 236         int err = -EIO;
 237
 238         connection = dbus_bus_get(DBUS_BUS_SYSTEM, NULL);
 239         if (connection == NULL)
 240                 return -EIO;
 241
 242         if (dbus_connection_add_filter(connection, bluetooth_signal,
 243                                                         NULL, NULL) == FALSE)
 244                 goto unref;
 245
 246         err = connman_device_driver_register(&bluetooth_driver);
 247         if (err < 0)
 248                 goto remove;
 249
 250         watch = g_dbus_add_service_watch(connection, BLUEZ_SERVICE,
 251                         bluetooth_connect, bluetooth_disconnect, NULL, NULL);
 252         if (watch == 0) {
 253                 connman_device_driver_unregister(&bluetooth_driver);
 254                 err = -EIO;
 255                 goto remove;
 256         }
 257
 258         if (g_dbus_check_service(connection, BLUEZ_SERVICE) == TRUE)
 259                 bluetooth_connect(connection, NULL);
 260
 261         dbus_bus_add_match(connection, added_rule, NULL);
 262         dbus_bus_add_match(connection, removed_rule, NULL);
 263         dbus_bus_add_match(connection, adapter_rule, NULL);
 264         dbus_connection_flush(connection);
 265
 266         return 0;
 267
 268 remove:
 269         dbus_connection_remove_filter(connection, bluetooth_signal, NULL);
 270
 271 unref:
 272         dbus_connection_unref(connection);
 273
 274         return err;
 275 }
 276
 277 static void bluetooth_exit(void)
 278 {
 279         dbus_bus_remove_match(connection, adapter_rule, NULL);
 280         dbus_bus_remove_match(connection, removed_rule, NULL);
 281         dbus_bus_remove_match(connection, added_rule, NULL);
 282         dbus_connection_flush(connection);
 283
 284         g_dbus_remove_watch(connection, watch);
 285
 286         bluetooth_disconnect(connection, NULL);
 287
 288         connman_device_driver_unregister(&bluetooth_driver);
 289
 290         dbus_connection_remove_filter(connection, bluetooth_signal, NULL);
 291
 292         dbus_connection_unref(connection);
 293 }
 294
 295 CONNMAN_PLUGIN_DEFINE(bluetooth, "Bluetooth technology plugin", VERSION,
 296                                                 bluetooth_init, bluetooth_exit)