src/notifier.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 <gdbus.h>
  27
  28 #include "connman.h"
  29
  30 static DBusConnection *connection = NULL;
  31
  32 static GSList *notifier_list = NULL;
  33
  34 static gint compare_priority(gconstpointer a, gconstpointer b)
  35 {
  36         const struct connman_notifier *notifier1 = a;
  37         const struct connman_notifier *notifier2 = b;
  38
  39         return notifier2->priority - notifier1->priority;
  40 }
  41
  42 /**
  43  * connman_notifier_register:
  44  * @notifier: notifier module
  45  *
  46  * Register a new notifier module
  47  *
  48  * Returns: %0 on success
  49  */
  50 int connman_notifier_register(struct connman_notifier *notifier)
  51 {
  52         DBG("notifier %p name %s", notifier, notifier->name);
  53
  54         notifier_list = g_slist_insert_sorted(notifier_list, notifier,
  55                                                         compare_priority);
  56
  57         return 0;
  58 }
  59
  60 /**
  61  * connman_notifier_unregister:
  62  * @notifier: notifier module
  63  *
  64  * Remove a previously registered notifier module
  65  */
  66 void connman_notifier_unregister(struct connman_notifier *notifier)
  67 {
  68         DBG("notifier %p name %s", notifier, notifier->name);
  69
  70         notifier_list = g_slist_remove(notifier_list, notifier);
  71 }
  72
  73 #define MAX_TECHNOLOGIES 10
  74
  75 static volatile gint registered[MAX_TECHNOLOGIES];
  76 static volatile gint enabled[MAX_TECHNOLOGIES];
  77 static volatile gint connected[MAX_TECHNOLOGIES];
  78
  79 void __connman_notifier_list_registered(DBusMessageIter *iter, void *user_data)
  80 {
  81         int i;
  82
  83         for (i = 0; i < MAX_TECHNOLOGIES; i++) {
  84                 const char *type = __connman_service_type2string(i);
  85
  86                 if (type == NULL)
  87                         continue;
  88
  89                 if (g_atomic_int_get(&registered[i]) > 0)
  90                         dbus_message_iter_append_basic(iter,
  91                                                 DBUS_TYPE_STRING, &type);
  92         }
  93 }
  94
  95 void __connman_notifier_list_enabled(DBusMessageIter *iter, void *user_data)
  96 {
  97         int i;
  98
  99         for (i = 0; i < MAX_TECHNOLOGIES; i++) {
 100                 const char *type = __connman_service_type2string(i);
 101
 102                 if (type == NULL)
 103                         continue;
 104
 105                 if (g_atomic_int_get(&enabled[i]) > 0)
 106                         dbus_message_iter_append_basic(iter,
 107                                                 DBUS_TYPE_STRING, &type);
 108         }
 109 }
 110
 111 void __connman_notifier_list_connected(DBusMessageIter *iter, void *user_data)
 112 {
 113         int i;
 114
 115         for (i = 0; i < MAX_TECHNOLOGIES; i++) {
 116                 const char *type = __connman_service_type2string(i);
 117
 118                 if (type == NULL)
 119                         continue;
 120
 121                 if (g_atomic_int_get(&connected[i]) > 0)
 122                         dbus_message_iter_append_basic(iter,
 123                                                 DBUS_TYPE_STRING, &type);
 124         }
 125 }
 126
 127 static void technology_registered(enum connman_service_type type,
 128                                                 connman_bool_t registered)
 129 {
 130         DBG("type %d registered %d", type, registered);
 131
 132         connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 133                 CONNMAN_MANAGER_INTERFACE, "AvailableTechnologies",
 134                 DBUS_TYPE_STRING, __connman_notifier_list_registered, NULL);
 135 }
 136
 137 static void technology_enabled(enum connman_service_type type,
 138                                                 connman_bool_t enabled)
 139 {
 140         GSList *list;
 141
 142         DBG("type %d enabled %d", type, enabled);
 143
 144         connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 145                 CONNMAN_MANAGER_INTERFACE, "EnabledTechnologies",
 146                 DBUS_TYPE_STRING, __connman_notifier_list_enabled, NULL);
 147
 148         for (list = notifier_list; list; list = list->next) {
 149                 struct connman_notifier *notifier = list->data;
 150
 151                 if (notifier->service_enabled)
 152                         notifier->service_enabled(type, enabled);
 153         }
 154 }
 155
 156 unsigned int __connman_notifier_count_connected(void)
 157 {
 158         unsigned int i, count = 0;
 159
 160         for (i = 0; i < MAX_TECHNOLOGIES; i++) {
 161                 if (g_atomic_int_get(&connected[i]) > 0)
 162                         count++;
 163         }
 164
 165         return count;
 166 }
 167
 168 const char *__connman_notifier_get_state(void)
 169 {
 170         unsigned int count = __connman_notifier_count_connected();
 171
 172         if (count > 0)
 173                 return "online";
 174
 175         return "offline";
 176 }
 177
 178 static void state_changed(void)
 179 {
 180         unsigned int count = __connman_notifier_count_connected();
 181         char *state = "offline";
 182         DBusMessage *signal;
 183
 184         if (count > 1)
 185                 return;
 186
 187         if (count > 0)
 188                 state = "online";
 189
 190         connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 191                                 CONNMAN_MANAGER_INTERFACE, "State",
 192                                                 DBUS_TYPE_STRING, &state);
 193
 194         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 195                                 CONNMAN_MANAGER_INTERFACE, "StateChanged");
 196         if (signal == NULL)
 197                 return;
 198
 199         dbus_message_append_args(signal, DBUS_TYPE_STRING, &state,
 200                                                         DBUS_TYPE_INVALID);
 201
 202         g_dbus_send_message(connection, signal);
 203 }
 204
 205 static void technology_connected(enum connman_service_type type,
 206                                                 connman_bool_t connected)
 207 {
 208         DBG("type %d connected %d", type, connected);
 209
 210         connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 211                 CONNMAN_MANAGER_INTERFACE, "ConnectedTechnologies",
 212                 DBUS_TYPE_STRING, __connman_notifier_list_connected, NULL);
 213
 214         state_changed();
 215 }
 216
 217 void __connman_notifier_register(enum connman_service_type type)
 218 {
 219         DBG("type %d", type);
 220
 221         switch (type) {
 222         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 223         case CONNMAN_SERVICE_TYPE_SYSTEM:
 224         case CONNMAN_SERVICE_TYPE_GPS:
 225         case CONNMAN_SERVICE_TYPE_VPN:
 226                 return;
 227         case CONNMAN_SERVICE_TYPE_ETHERNET:
 228         case CONNMAN_SERVICE_TYPE_WIFI:
 229         case CONNMAN_SERVICE_TYPE_WIMAX:
 230         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 231         case CONNMAN_SERVICE_TYPE_CELLULAR:
 232                 break;
 233         }
 234
 235         if (g_atomic_int_exchange_and_add(&registered[type], 1) == 0)
 236                 technology_registered(type, TRUE);
 237 }
 238
 239 void __connman_notifier_unregister(enum connman_service_type type)
 240 {
 241         DBG("type %d", type);
 242
 243         switch (type) {
 244         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 245         case CONNMAN_SERVICE_TYPE_SYSTEM:
 246         case CONNMAN_SERVICE_TYPE_GPS:
 247         case CONNMAN_SERVICE_TYPE_VPN:
 248                 return;
 249         case CONNMAN_SERVICE_TYPE_ETHERNET:
 250         case CONNMAN_SERVICE_TYPE_WIFI:
 251         case CONNMAN_SERVICE_TYPE_WIMAX:
 252         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 253         case CONNMAN_SERVICE_TYPE_CELLULAR:
 254                 break;
 255         }
 256
 257         if (g_atomic_int_dec_and_test(&registered[type]) == TRUE)
 258                 technology_registered(type, FALSE);
 259 }
 260
 261 void __connman_notifier_enable(enum connman_service_type type)
 262 {
 263         DBG("type %d", type);
 264
 265         switch (type) {
 266         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 267         case CONNMAN_SERVICE_TYPE_SYSTEM:
 268         case CONNMAN_SERVICE_TYPE_GPS:
 269         case CONNMAN_SERVICE_TYPE_VPN:
 270                 return;
 271         case CONNMAN_SERVICE_TYPE_ETHERNET:
 272         case CONNMAN_SERVICE_TYPE_WIFI:
 273         case CONNMAN_SERVICE_TYPE_WIMAX:
 274         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 275         case CONNMAN_SERVICE_TYPE_CELLULAR:
 276                 break;
 277         }
 278
 279         if (g_atomic_int_exchange_and_add(&enabled[type], 1) == 0)
 280                 technology_enabled(type, TRUE);
 281 }
 282
 283 void __connman_notifier_disable(enum connman_service_type type)
 284 {
 285         DBG("type %d", type);
 286
 287         switch (type) {
 288         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 289         case CONNMAN_SERVICE_TYPE_SYSTEM:
 290         case CONNMAN_SERVICE_TYPE_GPS:
 291         case CONNMAN_SERVICE_TYPE_VPN:
 292                 return;
 293         case CONNMAN_SERVICE_TYPE_ETHERNET:
 294         case CONNMAN_SERVICE_TYPE_WIFI:
 295         case CONNMAN_SERVICE_TYPE_WIMAX:
 296         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 297         case CONNMAN_SERVICE_TYPE_CELLULAR:
 298                 break;
 299         }
 300
 301         if (g_atomic_int_dec_and_test(&enabled[type]) == TRUE)
 302                 technology_enabled(type, FALSE);
 303 }
 304
 305 void __connman_notifier_connect(enum connman_service_type type)
 306 {
 307         DBG("type %d", type);
 308
 309         switch (type) {
 310         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 311         case CONNMAN_SERVICE_TYPE_SYSTEM:
 312         case CONNMAN_SERVICE_TYPE_GPS:
 313         case CONNMAN_SERVICE_TYPE_VPN:
 314                 return;
 315         case CONNMAN_SERVICE_TYPE_ETHERNET:
 316         case CONNMAN_SERVICE_TYPE_WIFI:
 317         case CONNMAN_SERVICE_TYPE_WIMAX:
 318         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 319         case CONNMAN_SERVICE_TYPE_CELLULAR:
 320                 break;
 321         }
 322
 323         if (g_atomic_int_exchange_and_add(&connected[type], 1) == 0)
 324                 technology_connected(type, TRUE);
 325 }
 326
 327 void __connman_notifier_disconnect(enum connman_service_type type)
 328 {
 329         DBG("type %d", type);
 330
 331         switch (type) {
 332         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 333         case CONNMAN_SERVICE_TYPE_SYSTEM:
 334         case CONNMAN_SERVICE_TYPE_GPS:
 335         case CONNMAN_SERVICE_TYPE_VPN:
 336                 return;
 337         case CONNMAN_SERVICE_TYPE_ETHERNET:
 338         case CONNMAN_SERVICE_TYPE_WIFI:
 339         case CONNMAN_SERVICE_TYPE_WIMAX:
 340         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 341         case CONNMAN_SERVICE_TYPE_CELLULAR:
 342                 break;
 343         }
 344
 345         if (g_atomic_int_dec_and_test(&connected[type]) == TRUE)
 346                 technology_connected(type, FALSE);
 347 }
 348
 349 static void technology_default(enum connman_service_type type)
 350 {
 351         const char *str;
 352
 353         str = __connman_service_type2string(type);
 354         if (str == NULL)
 355                 str = "";
 356
 357         connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 358                         CONNMAN_MANAGER_INTERFACE, "DefaultTechnology",
 359                                                 DBUS_TYPE_STRING, &str);
 360 }
 361
 362 void __connman_notifier_default_changed(struct connman_service *service)
 363 {
 364         enum connman_service_type type = connman_service_get_type(service);
 365         GSList *list;
 366
 367         technology_default(type);
 368
 369         for (list = notifier_list; list; list = list->next) {
 370                 struct connman_notifier *notifier = list->data;
 371
 372                 if (notifier->default_changed)
 373                         notifier->default_changed(service);
 374         }
 375 }
 376
 377 static void offlinemode_changed(dbus_bool_t enabled)
 378 {
 379         DBG("enabled %d", enabled);
 380
 381         connman_dbus_property_changed_basic(CONNMAN_MANAGER_PATH,
 382                                 CONNMAN_MANAGER_INTERFACE, "OfflineMode",
 383                                                 DBUS_TYPE_BOOLEAN, &enabled);
 384 }
 385
 386 void __connman_notifier_offlinemode(connman_bool_t enabled)
 387 {
 388         GSList *list;
 389
 390         DBG("enabled %d", enabled);
 391
 392         __connman_profile_changed(FALSE);
 393
 394         offlinemode_changed(enabled);
 395
 396         for (list = notifier_list; list; list = list->next) {
 397                 struct connman_notifier *notifier = list->data;
 398
 399                 if (notifier->offline_mode)
 400                         notifier->offline_mode(enabled);
 401         }
 402 }
 403
 404 connman_bool_t __connman_notifier_is_enabled(enum connman_service_type type)
 405 {
 406         DBG("type %d", type);
 407
 408         switch (type) {
 409         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 410         case CONNMAN_SERVICE_TYPE_SYSTEM:
 411         case CONNMAN_SERVICE_TYPE_GPS:
 412         case CONNMAN_SERVICE_TYPE_VPN:
 413                 return FALSE;
 414         case CONNMAN_SERVICE_TYPE_ETHERNET:
 415         case CONNMAN_SERVICE_TYPE_WIFI:
 416         case CONNMAN_SERVICE_TYPE_WIMAX:
 417         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 418         case CONNMAN_SERVICE_TYPE_CELLULAR:
 419                 break;
 420         }
 421
 422         if (g_atomic_int_get(&enabled[type]) > 0)
 423                 return TRUE;
 424
 425         return FALSE;
 426 }
 427
 428 int __connman_notifier_init(void)
 429 {
 430         DBG("");
 431
 432         connection = connman_dbus_get_connection();
 433
 434         return 0;
 435 }
 436
 437 void __connman_notifier_cleanup(void)
 438 {
 439         DBG("");
 440
 441         dbus_connection_unref(connection);
 442 }