src/technology.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2012  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 <string.h>
  28
  29 #include <gdbus.h>
  30
  31 #include "connman.h"
  32
  33 static DBusConnection *connection;
  34
  35 static GSList *technology_list = NULL;
  36
  37 /*
  38  * List of devices with no technology associated with them either because of
  39  * no compiled in support or the driver is not yet loaded.
  40 */
  41 static GSList *techless_device_list = NULL;
  42 static GHashTable *rfkill_list;
  43
  44 static connman_bool_t global_offlinemode;
  45
  46 struct connman_rfkill {
  47         unsigned int index;
  48         enum connman_service_type type;
  49         connman_bool_t softblock;
  50         connman_bool_t hardblock;
  51 };
  52
  53 struct connman_technology {
  54         int refcount;
  55         enum connman_service_type type;
  56         char *path;
  57         GSList *device_list;
  58         int enabled;
  59         char *regdom;
  60         connman_bool_t connected;
  61
  62         connman_bool_t tethering;
  63         char *tethering_ident;
  64         char *tethering_passphrase;
  65
  66         connman_bool_t enable_persistent; /* Save the tech state */
  67
  68         struct connman_technology_driver *driver;
  69         void *driver_data;
  70
  71         DBusMessage *pending_reply;
  72         guint pending_timeout;
  73
  74         GSList *scan_pending;
  75
  76         connman_bool_t rfkill_driven;
  77         connman_bool_t softblocked;
  78         connman_bool_t hardblocked;
  79         connman_bool_t dbus_registered;
  80 };
  81
  82 static GSList *driver_list = NULL;
  83
  84 static gint compare_priority(gconstpointer a, gconstpointer b)
  85 {
  86         const struct connman_technology_driver *driver1 = a;
  87         const struct connman_technology_driver *driver2 = b;
  88
  89         return driver2->priority - driver1->priority;
  90 }
  91
  92 static void rfkill_check(gpointer key, gpointer value, gpointer user_data)
  93 {
  94         struct connman_rfkill *rfkill = value;
  95         enum connman_service_type type = GPOINTER_TO_INT(user_data);
  96
  97         /* Calling _technology_rfkill_add will update the tech. */
  98         if (rfkill->type == type)
  99                 __connman_technology_add_rfkill(rfkill->index, type,
 100                                 rfkill->softblock, rfkill->hardblock);
 101 }
 102
 103 /**
 104  * connman_technology_driver_register:
 105  * @driver: Technology driver definition
 106  *
 107  * Register a new technology driver
 108  *
 109  * Returns: %0 on success
 110  */
 111 int connman_technology_driver_register(struct connman_technology_driver *driver)
 112 {
 113         GSList *list;
 114         struct connman_device *device;
 115         enum connman_service_type type;
 116
 117         DBG("Registering %s driver", driver->name);
 118
 119         driver_list = g_slist_insert_sorted(driver_list, driver,
 120                                                         compare_priority);
 121
 122         if (techless_device_list == NULL)
 123                 goto check_rfkill;
 124
 125         /*
 126          * Check for technology less devices if this driver
 127          * can service any of them.
 128         */
 129         for (list = techless_device_list; list; list = list->next) {
 130                 device = list->data;
 131
 132                 type = __connman_device_get_service_type(device);
 133                 if (type != driver->type)
 134                         continue;
 135
 136                 techless_device_list = g_slist_remove(techless_device_list,
 137                                                                 device);
 138
 139                 __connman_technology_add_device(device);
 140         }
 141
 142 check_rfkill:
 143         /* Check for orphaned rfkill switches. */
 144         g_hash_table_foreach(rfkill_list, rfkill_check,
 145                                         GINT_TO_POINTER(driver->type));
 146
 147         return 0;
 148 }
 149
 150 /**
 151  * connman_technology_driver_unregister:
 152  * @driver: Technology driver definition
 153  *
 154  * Remove a previously registered technology driver
 155  */
 156 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 157 {
 158         GSList *list;
 159         struct connman_technology *technology;
 160
 161         DBG("Unregistering driver %p name %s", driver, driver->name);
 162
 163         for (list = technology_list; list; list = list->next) {
 164                 technology = list->data;
 165
 166                 if (technology->driver == NULL)
 167                         continue;
 168
 169                 if (technology->type == driver->type) {
 170                         technology->driver->remove(technology);
 171                         technology->driver = NULL;
 172                 }
 173         }
 174
 175         driver_list = g_slist_remove(driver_list, driver);
 176 }
 177
 178 static void tethering_changed(struct connman_technology *technology)
 179 {
 180         connman_bool_t tethering = technology->tethering;
 181
 182         connman_dbus_property_changed_basic(technology->path,
 183                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 184                                                 DBUS_TYPE_BOOLEAN, &tethering);
 185 }
 186
 187 void connman_technology_tethering_notify(struct connman_technology *technology,
 188                                                         connman_bool_t enabled)
 189 {
 190         GSList *list;
 191
 192         DBG("technology %p enabled %u", technology, enabled);
 193
 194         if (technology->tethering == enabled)
 195                 return;
 196
 197         technology->tethering = enabled;
 198
 199         tethering_changed(technology);
 200
 201         if (enabled == TRUE)
 202                 __connman_tethering_set_enabled();
 203         else {
 204                 for (list = technology_list; list; list = list->next) {
 205                         struct connman_technology *other_tech = list->data;
 206                         if (other_tech->tethering == TRUE)
 207                                 break;
 208                 }
 209                 if (list == NULL)
 210                         __connman_tethering_set_disabled();
 211         }
 212 }
 213
 214 static int set_tethering(struct connman_technology *technology,
 215                                 connman_bool_t enabled)
 216 {
 217         const char *ident, *passphrase, *bridge;
 218
 219         ident = technology->tethering_ident;
 220         passphrase = technology->tethering_passphrase;
 221
 222         if (technology->driver == NULL ||
 223                         technology->driver->set_tethering == NULL)
 224                 return -EOPNOTSUPP;
 225
 226         bridge = __connman_tethering_get_bridge();
 227         if (bridge == NULL)
 228                 return -EOPNOTSUPP;
 229
 230         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI &&
 231             (ident == NULL || passphrase == NULL))
 232                 return -EINVAL;
 233
 234         return technology->driver->set_tethering(technology, ident, passphrase,
 235                                                         bridge, enabled);
 236 }
 237
 238 void connman_technology_regdom_notify(struct connman_technology *technology,
 239                                                         const char *alpha2)
 240 {
 241         DBG("");
 242
 243         if (alpha2 == NULL)
 244                 connman_error("Failed to set regulatory domain");
 245         else
 246                 DBG("Regulatory domain set to %s", alpha2);
 247
 248         g_free(technology->regdom);
 249         technology->regdom = g_strdup(alpha2);
 250 }
 251
 252 static int set_regdom_by_device(struct connman_technology *technology,
 253                                                         const char *alpha2)
 254 {
 255         GSList *list;
 256
 257         for (list = technology->device_list; list; list = list->next) {
 258                 struct connman_device *device = list->data;
 259
 260                 if (connman_device_set_regdom(device, alpha2) != 0)
 261                         return -ENOTSUP;
 262         }
 263
 264         return 0;
 265 }
 266
 267 int connman_technology_set_regdom(const char *alpha2)
 268 {
 269         GSList *list;
 270
 271         for (list = technology_list; list; list = list->next) {
 272                 struct connman_technology *technology = list->data;
 273
 274                 if (set_regdom_by_device(technology, alpha2) != 0) {
 275                         if (technology->driver == NULL)
 276                                 continue;
 277
 278                         if (technology->driver->set_regdom != NULL)
 279                                 technology->driver->set_regdom(technology,
 280                                                                 alpha2);
 281                 }
 282         }
 283
 284         return 0;
 285 }
 286
 287 static void free_rfkill(gpointer data)
 288 {
 289         struct connman_rfkill *rfkill = data;
 290
 291         g_free(rfkill);
 292 }
 293
 294 static const char *get_name(enum connman_service_type type)
 295 {
 296         switch (type) {
 297         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 298         case CONNMAN_SERVICE_TYPE_SYSTEM:
 299         case CONNMAN_SERVICE_TYPE_GPS:
 300         case CONNMAN_SERVICE_TYPE_VPN:
 301         case CONNMAN_SERVICE_TYPE_GADGET:
 302                 break;
 303         case CONNMAN_SERVICE_TYPE_ETHERNET:
 304                 return "Wired";
 305         case CONNMAN_SERVICE_TYPE_WIFI:
 306                 return "WiFi";
 307         case CONNMAN_SERVICE_TYPE_WIMAX:
 308                 return "WiMAX";
 309         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 310                 return "Bluetooth";
 311         case CONNMAN_SERVICE_TYPE_CELLULAR:
 312                 return "Cellular";
 313         }
 314
 315         return NULL;
 316 }
 317
 318 static void technology_save(struct connman_technology *technology)
 319 {
 320         GKeyFile *keyfile;
 321         gchar *identifier;
 322
 323         DBG("technology %p", technology);
 324
 325         keyfile = __connman_storage_load_global();
 326         if (keyfile == NULL)
 327                 keyfile = g_key_file_new();
 328
 329         identifier = g_strdup_printf("%s", get_name(technology->type));
 330         if (identifier == NULL)
 331                 goto done;
 332
 333         g_key_file_set_boolean(keyfile, identifier, "Enable",
 334                                 technology->enable_persistent);
 335
 336         if (technology->tethering_ident != NULL)
 337                 g_key_file_set_string(keyfile, identifier,
 338                                         "Tethering.Identifier",
 339                                         technology->tethering_ident);
 340
 341         if (technology->tethering_passphrase != NULL)
 342                 g_key_file_set_string(keyfile, identifier,
 343                                         "Tethering.Passphrase",
 344                                         technology->tethering_passphrase);
 345
 346 done:
 347         g_free(identifier);
 348
 349         __connman_storage_save_global(keyfile);
 350
 351         g_key_file_free(keyfile);
 352
 353         return;
 354 }
 355
 356 static void technology_load(struct connman_technology *technology)
 357 {
 358         GKeyFile *keyfile;
 359         gchar *identifier;
 360         GError *error = NULL;
 361         connman_bool_t enable;
 362
 363         DBG("technology %p", technology);
 364
 365         keyfile = __connman_storage_load_global();
 366         /* Fallback on disabling technology if file not found. */
 367         if (keyfile == NULL) {
 368                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 369                         /* We enable ethernet by default */
 370                         technology->enable_persistent = TRUE;
 371                 else
 372                         technology->enable_persistent = FALSE;
 373                 return;
 374         }
 375
 376         identifier = g_strdup_printf("%s", get_name(technology->type));
 377         if (identifier == NULL)
 378                 goto done;
 379
 380         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 381         if (error == NULL)
 382                 technology->enable_persistent = enable;
 383         else {
 384                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 385                         technology->enable_persistent = TRUE;
 386                 else
 387                         technology->enable_persistent = FALSE;
 388
 389                 technology_save(technology);
 390                 g_clear_error(&error);
 391         }
 392
 393         technology->tethering_ident = g_key_file_get_string(keyfile,
 394                                 identifier, "Tethering.Identifier", NULL);
 395
 396         technology->tethering_passphrase = g_key_file_get_string(keyfile,
 397                                 identifier, "Tethering.Passphrase", NULL);
 398 done:
 399         g_free(identifier);
 400
 401         g_key_file_free(keyfile);
 402
 403         return;
 404 }
 405
 406 connman_bool_t __connman_technology_get_offlinemode(void)
 407 {
 408         return global_offlinemode;
 409 }
 410
 411 static void connman_technology_save_offlinemode()
 412 {
 413         GKeyFile *keyfile;
 414
 415         keyfile = __connman_storage_load_global();
 416         if (keyfile == NULL)
 417                 keyfile = g_key_file_new();
 418
 419         g_key_file_set_boolean(keyfile, "global",
 420                                         "OfflineMode", global_offlinemode);
 421
 422         __connman_storage_save_global(keyfile);
 423
 424         g_key_file_free(keyfile);
 425
 426         return;
 427 }
 428
 429 static connman_bool_t connman_technology_load_offlinemode()
 430 {
 431         GKeyFile *keyfile;
 432         GError *error = NULL;
 433         connman_bool_t offlinemode;
 434
 435         /* If there is a error, we enable offlinemode */
 436         keyfile = __connman_storage_load_global();
 437         if (keyfile == NULL)
 438                 return FALSE;
 439
 440         offlinemode = g_key_file_get_boolean(keyfile, "global",
 441                                                 "OfflineMode", &error);
 442         if (error != NULL) {
 443                 offlinemode = FALSE;
 444                 g_clear_error(&error);
 445         }
 446
 447         g_key_file_free(keyfile);
 448
 449         return offlinemode;
 450 }
 451
 452 static void append_properties(DBusMessageIter *iter,
 453                 struct connman_technology *technology)
 454 {
 455         DBusMessageIter dict;
 456         const char *str;
 457         connman_bool_t powered;
 458
 459         connman_dbus_dict_open(iter, &dict);
 460
 461         str = get_name(technology->type);
 462         if (str != NULL)
 463                 connman_dbus_dict_append_basic(&dict, "Name",
 464                                                 DBUS_TYPE_STRING, &str);
 465
 466         str = __connman_service_type2string(technology->type);
 467         if (str != NULL)
 468                 connman_dbus_dict_append_basic(&dict, "Type",
 469                                                 DBUS_TYPE_STRING, &str);
 470
 471         __sync_synchronize();
 472         if (technology->enabled > 0)
 473                 powered = TRUE;
 474         else
 475                 powered = FALSE;
 476         connman_dbus_dict_append_basic(&dict, "Powered",
 477                                         DBUS_TYPE_BOOLEAN, &powered);
 478
 479         connman_dbus_dict_append_basic(&dict, "Connected",
 480                                         DBUS_TYPE_BOOLEAN,
 481                                         &technology->connected);
 482
 483         connman_dbus_dict_append_basic(&dict, "Tethering",
 484                                         DBUS_TYPE_BOOLEAN,
 485                                         &technology->tethering);
 486
 487         if (technology->tethering_ident != NULL)
 488                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 489                                                 DBUS_TYPE_STRING,
 490                                                 &technology->tethering_ident);
 491
 492         if (technology->tethering_passphrase != NULL)
 493                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 494                                                 DBUS_TYPE_STRING,
 495                                                 &technology->tethering_passphrase);
 496
 497         connman_dbus_dict_close(iter, &dict);
 498 }
 499
 500 static void technology_added_signal(struct connman_technology *technology)
 501 {
 502         DBusMessage *signal;
 503         DBusMessageIter iter;
 504
 505         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 506                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 507         if (signal == NULL)
 508                 return;
 509
 510         dbus_message_iter_init_append(signal, &iter);
 511         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 512                                                         &technology->path);
 513         append_properties(&iter, technology);
 514
 515         dbus_connection_send(connection, signal, NULL);
 516         dbus_message_unref(signal);
 517 }
 518
 519 static void technology_removed_signal(struct connman_technology *technology)
 520 {
 521         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 522                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 523                         DBUS_TYPE_OBJECT_PATH, &technology->path,
 524                         DBUS_TYPE_INVALID);
 525 }
 526
 527 static DBusMessage *get_properties(DBusConnection *conn,
 528                                         DBusMessage *message, void *user_data)
 529 {
 530         struct connman_technology *technology = user_data;
 531         DBusMessage *reply;
 532         DBusMessageIter iter;
 533
 534         reply = dbus_message_new_method_return(message);
 535         if (reply == NULL)
 536                 return NULL;
 537
 538         dbus_message_iter_init_append(reply, &iter);
 539         append_properties(&iter, technology);
 540
 541         return reply;
 542 }
 543
 544 void __connman_technology_list_struct(DBusMessageIter *array)
 545 {
 546         GSList *list;
 547         DBusMessageIter entry;
 548
 549         for (list = technology_list; list; list = list->next) {
 550                 struct connman_technology *technology = list->data;
 551
 552                 if (technology->path == NULL ||
 553                                 (technology->rfkill_driven == TRUE &&
 554                                  technology->hardblocked == TRUE))
 555                         continue;
 556
 557                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 558                                 NULL, &entry);
 559                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 560                                 &technology->path);
 561                 append_properties(&entry, technology);
 562                 dbus_message_iter_close_container(array, &entry);
 563         }
 564 }
 565
 566 static gboolean technology_pending_reply(gpointer user_data)
 567 {
 568         struct connman_technology *technology = user_data;
 569         DBusMessage *reply;
 570
 571         /* Power request timedout, send ETIMEDOUT. */
 572         if (technology->pending_reply != NULL) {
 573                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 574                 if (reply != NULL)
 575                         g_dbus_send_message(connection, reply);
 576
 577                 dbus_message_unref(technology->pending_reply);
 578                 technology->pending_reply = NULL;
 579                 technology->pending_timeout = 0;
 580         }
 581
 582         return FALSE;
 583 }
 584
 585 static int technology_affect_devices(struct connman_technology *technology,
 586                                                 connman_bool_t enable_device)
 587 {
 588         GSList *list;
 589         int err = 0;
 590
 591         for (list = technology->device_list; list; list = list->next) {
 592                 struct connman_device *device = list->data;
 593
 594                 if (enable_device == TRUE)
 595                         err = __connman_device_enable(device);
 596                 else
 597                         err = __connman_device_disable(device);
 598         }
 599
 600         return err;
 601 }
 602
 603 static int technology_enable(struct connman_technology *technology,
 604                                                 connman_bool_t hardblock)
 605 {
 606         DBG("technology %p enable", technology);
 607
 608         __sync_synchronize();
 609         if (technology->enabled > 0)
 610                 return -EALREADY;
 611
 612         if (technology->pending_reply != NULL)
 613                 return -EBUSY;
 614
 615         if (hardblock == TRUE && technology->enable_persistent == FALSE)
 616                 return 0;
 617
 618         __connman_rfkill_block(technology->type, FALSE);
 619
 620         return technology_affect_devices(technology, TRUE);
 621 }
 622
 623 static int technology_disable(struct connman_technology *technology,
 624                                                 connman_bool_t hardblock)
 625 {
 626         DBG("technology %p disable", technology);
 627
 628         __sync_synchronize();
 629         if (technology->enabled == 0)
 630                 return -EALREADY;
 631
 632         if (technology->pending_reply != NULL)
 633                 return -EBUSY;
 634
 635         if (technology->tethering == TRUE)
 636                 set_tethering(technology, FALSE);
 637
 638         if (hardblock == FALSE)
 639                 __connman_rfkill_block(technology->type, TRUE);
 640
 641         return technology_affect_devices(technology, FALSE);
 642 }
 643
 644 static DBusMessage *set_powered(struct connman_technology *technology,
 645                                 DBusMessage *msg, connman_bool_t powered)
 646 {
 647         DBusMessage *reply = NULL;
 648         int err = 0;
 649
 650         if (technology->rfkill_driven && technology->hardblocked == TRUE) {
 651                 err = -EACCES;
 652                 goto make_reply;
 653         }
 654
 655         if (powered == TRUE)
 656                 err = technology_enable(technology, FALSE);
 657         else
 658                 err = technology_disable(technology, FALSE);
 659
 660         if (err != -EBUSY) {
 661                 technology->enable_persistent = powered;
 662                 technology_save(technology);
 663         }
 664
 665 make_reply:
 666         if (err == -EINPROGRESS) {
 667                 technology->pending_reply = dbus_message_ref(msg);
 668                 technology->pending_timeout = g_timeout_add_seconds(10,
 669                                         technology_pending_reply, technology);
 670         } else if (err == -EALREADY) {
 671                 if (powered == TRUE)
 672                         reply = __connman_error_already_enabled(msg);
 673                 else
 674                         reply = __connman_error_already_disabled(msg);
 675         } else if (err < 0)
 676                 reply = __connman_error_failed(msg, -err);
 677         else
 678                 reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 679
 680         return reply;
 681 }
 682
 683 static DBusMessage *set_property(DBusConnection *conn,
 684                                         DBusMessage *msg, void *data)
 685 {
 686         struct connman_technology *technology = data;
 687         DBusMessageIter iter, value;
 688         const char *name;
 689         int type;
 690
 691         DBG("conn %p", conn);
 692
 693         if (dbus_message_iter_init(msg, &iter) == FALSE)
 694                 return __connman_error_invalid_arguments(msg);
 695
 696         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 697                 return __connman_error_invalid_arguments(msg);
 698
 699         dbus_message_iter_get_basic(&iter, &name);
 700         dbus_message_iter_next(&iter);
 701
 702         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 703                 return __connman_error_invalid_arguments(msg);
 704
 705         dbus_message_iter_recurse(&iter, &value);
 706
 707         type = dbus_message_iter_get_arg_type(&value);
 708
 709         DBG("property %s", name);
 710
 711         if (g_str_equal(name, "Tethering") == TRUE) {
 712                 int err;
 713                 connman_bool_t tethering;
 714
 715                 if (type != DBUS_TYPE_BOOLEAN)
 716                         return __connman_error_invalid_arguments(msg);
 717
 718                 dbus_message_iter_get_basic(&value, &tethering);
 719
 720                 if (technology->tethering == tethering) {
 721                         if (tethering == FALSE)
 722                                 return __connman_error_already_disabled(msg);
 723                         else
 724                                 return __connman_error_already_enabled(msg);
 725                 }
 726
 727                 err = set_tethering(technology, tethering);
 728                 if (err < 0)
 729                         return __connman_error_failed(msg, -err);
 730
 731         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 732                 const char *str;
 733
 734                 dbus_message_iter_get_basic(&value, &str);
 735
 736                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 737                         return __connman_error_not_supported(msg);
 738
 739                 if (strlen(str) < 1 || strlen(str) > 32)
 740                         return __connman_error_invalid_arguments(msg);
 741
 742                 if (g_strcmp0(technology->tethering_ident, str) != 0) {
 743                         g_free(technology->tethering_ident);
 744                         technology->tethering_ident = g_strdup(str);
 745                         technology_save(technology);
 746
 747                         connman_dbus_property_changed_basic(technology->path,
 748                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 749                                                 "TetheringIdentifier",
 750                                                 DBUS_TYPE_STRING,
 751                                                 &technology->tethering_ident);
 752                 }
 753         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 754                 const char *str;
 755
 756                 dbus_message_iter_get_basic(&value, &str);
 757
 758                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 759                         return __connman_error_not_supported(msg);
 760
 761                 if (strlen(str) < 8 || strlen(str) > 63)
 762                         return __connman_error_passphrase_required(msg);
 763
 764                 if (g_strcmp0(technology->tethering_passphrase, str) != 0) {
 765                         g_free(technology->tethering_passphrase);
 766                         technology->tethering_passphrase = g_strdup(str);
 767                         technology_save(technology);
 768
 769                         connman_dbus_property_changed_basic(technology->path,
 770                                         CONNMAN_TECHNOLOGY_INTERFACE,
 771                                         "TetheringPassphrase",
 772                                         DBUS_TYPE_STRING,
 773                                         &technology->tethering_passphrase);
 774                 }
 775         } else if (g_str_equal(name, "Powered") == TRUE) {
 776                 connman_bool_t enable;
 777
 778                 if (type != DBUS_TYPE_BOOLEAN)
 779                         return __connman_error_invalid_arguments(msg);
 780
 781                 dbus_message_iter_get_basic(&value, &enable);
 782
 783                 return set_powered(technology, msg, enable);
 784         } else
 785                 return __connman_error_invalid_property(msg);
 786
 787         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 788 }
 789
 790 static struct connman_technology *technology_find(enum connman_service_type type)
 791 {
 792         GSList *list;
 793
 794         DBG("type %d", type);
 795
 796         for (list = technology_list; list; list = list->next) {
 797                 struct connman_technology *technology = list->data;
 798
 799                 if (technology->type == type)
 800                         return technology;
 801         }
 802
 803         return NULL;
 804 }
 805
 806 static void reply_scan_pending(struct connman_technology *technology, int err)
 807 {
 808         DBusMessage *reply;
 809
 810         DBG("technology %p err %d", technology, err);
 811
 812         while (technology->scan_pending != NULL) {
 813                 DBusMessage *msg = technology->scan_pending->data;
 814
 815                 DBG("reply to %s", dbus_message_get_sender(msg));
 816
 817                 if (err == 0)
 818                         reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 819                 else
 820                         reply = __connman_error_failed(msg, -err);
 821                 g_dbus_send_message(connection, reply);
 822                 dbus_message_unref(msg);
 823
 824                 technology->scan_pending =
 825                         g_slist_delete_link(technology->scan_pending,
 826                                         technology->scan_pending);
 827         }
 828 }
 829
 830 void __connman_technology_scan_started(struct connman_device *device)
 831 {
 832         DBG("device %p", device);
 833 }
 834
 835 void __connman_technology_scan_stopped(struct connman_device *device)
 836 {
 837         int count = 0;
 838         struct connman_technology *technology;
 839         enum connman_service_type type;
 840         GSList *list;
 841
 842         type = __connman_device_get_service_type(device);
 843         technology = technology_find(type);
 844
 845         DBG("technology %p device %p", technology, device);
 846
 847         if (technology == NULL)
 848                 return;
 849
 850         for (list = technology->device_list; list != NULL; list = list->next) {
 851                 struct connman_device *other_device = list->data;
 852
 853                 if (device == other_device)
 854                         continue;
 855
 856                 if (__connman_device_get_service_type(other_device) != type)
 857                         continue;
 858
 859                 if (connman_device_get_scanning(other_device) == TRUE)
 860                         count += 1;
 861         }
 862
 863         if (count == 0)
 864                 reply_scan_pending(technology, 0);
 865 }
 866
 867 void __connman_technology_notify_regdom_by_device(struct connman_device *device,
 868                                                 int result, const char *alpha2)
 869 {
 870         struct connman_technology *technology;
 871         enum connman_service_type type;
 872
 873         type = __connman_device_get_service_type(device);
 874         technology = technology_find(type);
 875
 876         if (technology == NULL)
 877                 return;
 878
 879         if (result < 0) {
 880                 if (technology->driver != NULL &&
 881                                 technology->driver->set_regdom != NULL) {
 882                         technology->driver->set_regdom(technology, alpha2);
 883                         return;
 884                 }
 885
 886                 alpha2 = NULL;
 887         }
 888
 889         connman_technology_regdom_notify(technology, alpha2);
 890 }
 891
 892 static DBusMessage *scan(DBusConnection *conn, DBusMessage *msg, void *data)
 893 {
 894         struct connman_technology *technology = data;
 895         int err;
 896
 897         DBG ("technology %p request from %s", technology,
 898                         dbus_message_get_sender(msg));
 899
 900         dbus_message_ref(msg);
 901         technology->scan_pending =
 902                 g_slist_prepend(technology->scan_pending, msg);
 903
 904         err = __connman_device_request_scan(technology->type);
 905         if (err < 0)
 906                 reply_scan_pending(technology, err);
 907
 908         return NULL;
 909 }
 910
 911 static const GDBusMethodTable technology_methods[] = {
 912         { GDBUS_DEPRECATED_METHOD("GetProperties",
 913                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
 914                         get_properties) },
 915         { GDBUS_ASYNC_METHOD("SetProperty",
 916                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
 917                         NULL, set_property) },
 918         { GDBUS_ASYNC_METHOD("Scan", NULL, NULL, scan) },
 919         { },
 920 };
 921
 922 static const GDBusSignalTable technology_signals[] = {
 923         { GDBUS_SIGNAL("PropertyChanged",
 924                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
 925         { },
 926 };
 927
 928 static gboolean technology_dbus_register(struct connman_technology *technology)
 929 {
 930         if (technology->dbus_registered == TRUE ||
 931                                 (technology->rfkill_driven &&
 932                                  technology->hardblocked == TRUE))
 933                 return TRUE;
 934
 935         if (g_dbus_register_interface(connection, technology->path,
 936                                 CONNMAN_TECHNOLOGY_INTERFACE,
 937                                 technology_methods, technology_signals,
 938                                 NULL, technology, NULL) == FALSE) {
 939                 connman_error("Failed to register %s", technology->path);
 940                 return FALSE;
 941         }
 942
 943         technology_added_signal(technology);
 944         technology->dbus_registered = TRUE;
 945
 946         return TRUE;
 947 }
 948
 949 static struct connman_technology *technology_get(enum connman_service_type type)
 950 {
 951         struct connman_technology *technology;
 952         struct connman_technology_driver *driver = NULL;
 953         const char *str;
 954         GSList *list;
 955         int err;
 956
 957         DBG("type %d", type);
 958
 959         str = __connman_service_type2string(type);
 960         if (str == NULL)
 961                 return NULL;
 962
 963         technology = technology_find(type);
 964         if (technology != NULL) {
 965                 __sync_fetch_and_add(&technology->refcount, 1);
 966                 return technology;
 967         }
 968
 969         /* First check if we have a driver for this technology type */
 970         for (list = driver_list; list; list = list->next) {
 971                 driver = list->data;
 972
 973                 if (driver->type == type)
 974                         break;
 975                 else
 976                         driver = NULL;
 977         }
 978
 979         if (driver == NULL) {
 980                 DBG("No matching driver found for %s.",
 981                                 __connman_service_type2string(type));
 982                 return NULL;
 983         }
 984
 985         technology = g_try_new0(struct connman_technology, 1);
 986         if (technology == NULL)
 987                 return NULL;
 988
 989         technology->refcount = 1;
 990
 991         technology->rfkill_driven = FALSE;
 992         technology->softblocked = FALSE;
 993
 994         if (type == CONNMAN_SERVICE_TYPE_ETHERNET)
 995                 technology->hardblocked = FALSE;
 996         else
 997                 technology->hardblocked = TRUE;
 998
 999         technology->type = type;
1000         technology->path = g_strdup_printf("%s/technology/%s",
1001                                                         CONNMAN_PATH, str);
1002
1003         technology->device_list = NULL;
1004
1005         technology->pending_reply = NULL;
1006
1007         technology_load(technology);
1008
1009         if (technology_dbus_register(technology) == FALSE) {
1010                 g_free(technology);
1011                 return NULL;
1012         }
1013
1014         technology_list = g_slist_prepend(technology_list, technology);
1015
1016         technology->driver = driver;
1017         err = driver->probe(technology);
1018         if (err != 0)
1019                 DBG("Driver probe failed for technology %p", technology);
1020
1021         DBG("technology %p", technology);
1022
1023         return technology;
1024 }
1025
1026 static void technology_dbus_unregister(struct connman_technology *technology)
1027 {
1028         if (technology->dbus_registered == FALSE)
1029                 return;
1030
1031         technology_removed_signal(technology);
1032         g_dbus_unregister_interface(connection, technology->path,
1033                 CONNMAN_TECHNOLOGY_INTERFACE);
1034
1035         technology->dbus_registered = FALSE;
1036 }
1037
1038 static void technology_put(struct connman_technology *technology)
1039 {
1040         DBG("technology %p", technology);
1041
1042         if (__sync_sub_and_fetch(&technology->refcount, 1) > 0)
1043                 return;
1044
1045         reply_scan_pending(technology, -EINTR);
1046
1047         if (technology->driver) {
1048                 technology->driver->remove(technology);
1049                 technology->driver = NULL;
1050         }
1051
1052         technology_list = g_slist_remove(technology_list, technology);
1053
1054         technology_dbus_unregister(technology);
1055
1056         g_slist_free(technology->device_list);
1057
1058         g_free(technology->path);
1059         g_free(technology->regdom);
1060         g_free(technology->tethering_ident);
1061         g_free(technology->tethering_passphrase);
1062         g_free(technology);
1063 }
1064
1065 void __connman_technology_add_interface(enum connman_service_type type,
1066                                 int index, const char *name, const char *ident)
1067 {
1068         struct connman_technology *technology;
1069
1070         switch (type) {
1071         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1072         case CONNMAN_SERVICE_TYPE_SYSTEM:
1073                 return;
1074         case CONNMAN_SERVICE_TYPE_ETHERNET:
1075         case CONNMAN_SERVICE_TYPE_WIFI:
1076         case CONNMAN_SERVICE_TYPE_WIMAX:
1077         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1078         case CONNMAN_SERVICE_TYPE_CELLULAR:
1079         case CONNMAN_SERVICE_TYPE_GPS:
1080         case CONNMAN_SERVICE_TYPE_VPN:
1081         case CONNMAN_SERVICE_TYPE_GADGET:
1082                 break;
1083         }
1084
1085         connman_info("Adding interface %s [ %s ]", name,
1086                                 __connman_service_type2string(type));
1087
1088         technology = technology_find(type);
1089
1090         if (technology == NULL || technology->driver == NULL
1091                         || technology->driver->add_interface == NULL)
1092                 return;
1093
1094         technology->driver->add_interface(technology,
1095                                         index, name, ident);
1096 }
1097
1098 void __connman_technology_remove_interface(enum connman_service_type type,
1099                                 int index, const char *name, const char *ident)
1100 {
1101         struct connman_technology *technology;
1102
1103         switch (type) {
1104         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1105         case CONNMAN_SERVICE_TYPE_SYSTEM:
1106                 return;
1107         case CONNMAN_SERVICE_TYPE_ETHERNET:
1108         case CONNMAN_SERVICE_TYPE_WIFI:
1109         case CONNMAN_SERVICE_TYPE_WIMAX:
1110         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1111         case CONNMAN_SERVICE_TYPE_CELLULAR:
1112         case CONNMAN_SERVICE_TYPE_GPS:
1113         case CONNMAN_SERVICE_TYPE_VPN:
1114         case CONNMAN_SERVICE_TYPE_GADGET:
1115                 break;
1116         }
1117
1118         connman_info("Remove interface %s [ %s ]", name,
1119                                 __connman_service_type2string(type));
1120
1121         technology = technology_find(type);
1122
1123         if (technology == NULL || technology->driver == NULL)
1124                 return;
1125
1126         if (technology->driver->remove_interface)
1127                 technology->driver->remove_interface(technology, index);
1128 }
1129
1130 int __connman_technology_add_device(struct connman_device *device)
1131 {
1132         struct connman_technology *technology;
1133         enum connman_service_type type;
1134
1135         DBG("device %p", device);
1136
1137         type = __connman_device_get_service_type(device);
1138
1139         technology = technology_get(type);
1140         if (technology == NULL) {
1141                 /*
1142                  * Since no driver can be found for this device at the moment we
1143                  * add it to the techless device list.
1144                 */
1145                 techless_device_list = g_slist_prepend(techless_device_list,
1146                                                                 device);
1147
1148                 return -ENXIO;
1149         }
1150
1151         if (technology->enable_persistent &&
1152                                         global_offlinemode == FALSE &&
1153                                         technology->hardblocked == FALSE) {
1154                 int err = __connman_device_enable(device);
1155                 /*
1156                  * connman_technology_add_device() calls __connman_device_enable()
1157                  * but since the device is already enabled, the calls does not
1158                  * propagate through to connman_technology_enabled via
1159                  * connman_device_set_powered.
1160                  */
1161                 if (err == -EALREADY)
1162                         __connman_technology_enabled(type);
1163         }
1164         /* if technology persistent state is offline or hardblocked */
1165         if (technology->enable_persistent == FALSE ||
1166                                         technology->hardblocked == TRUE)
1167                 __connman_device_disable(device);
1168
1169         technology->device_list = g_slist_prepend(technology->device_list,
1170                                                                 device);
1171
1172         return 0;
1173 }
1174
1175 int __connman_technology_remove_device(struct connman_device *device)
1176 {
1177         struct connman_technology *technology;
1178         enum connman_service_type type;
1179
1180         DBG("device %p", device);
1181
1182         type = __connman_device_get_service_type(device);
1183
1184         technology = technology_find(type);
1185         if (technology == NULL) {
1186                 techless_device_list = g_slist_remove(techless_device_list,
1187                                                                 device);
1188                 return -ENXIO;
1189         }
1190
1191         technology->device_list = g_slist_remove(technology->device_list,
1192                                                                 device);
1193         technology_put(technology);
1194
1195         return 0;
1196 }
1197
1198 static void powered_changed(struct connman_technology *technology)
1199 {
1200         connman_bool_t powered;
1201
1202         __sync_synchronize();
1203         if (technology->enabled > 0)
1204                 powered = TRUE;
1205         else
1206                 powered = FALSE;
1207
1208         if (technology->pending_reply != NULL) {
1209                 g_dbus_send_reply(connection,
1210                                 technology->pending_reply, DBUS_TYPE_INVALID);
1211                 dbus_message_unref(technology->pending_reply);
1212                 technology->pending_reply = NULL;
1213
1214                 g_source_remove(technology->pending_timeout);
1215                 technology->pending_timeout = 0;
1216         }
1217
1218         connman_dbus_property_changed_basic(technology->path,
1219                         CONNMAN_TECHNOLOGY_INTERFACE, "Powered",
1220                         DBUS_TYPE_BOOLEAN, &powered);
1221 }
1222
1223 static int technology_enabled(struct connman_technology *technology)
1224 {
1225         if (__sync_fetch_and_add(&technology->enabled, 1) != 0)
1226                 return -EALREADY;
1227
1228         powered_changed(technology);
1229
1230         return 0;
1231 }
1232
1233 int __connman_technology_enabled(enum connman_service_type type)
1234 {
1235         struct connman_technology *technology;
1236
1237         technology = technology_find(type);
1238         if (technology == NULL)
1239                 return -ENXIO;
1240
1241         return technology_enabled(technology);
1242 }
1243
1244 static int technology_disabled(struct connman_technology *technology)
1245 {
1246         if (__sync_fetch_and_sub(&technology->enabled, 1) != 1)
1247                 return -EINPROGRESS;
1248
1249         powered_changed(technology);
1250
1251         return 0;
1252 }
1253
1254 int __connman_technology_disabled(enum connman_service_type type)
1255 {
1256         struct connman_technology *technology;
1257
1258         technology = technology_find(type);
1259         if (technology == NULL)
1260                 return -ENXIO;
1261
1262         return technology_disabled(technology);
1263 }
1264
1265 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
1266 {
1267         GSList *list;
1268         int err = -EINVAL;
1269
1270         if (global_offlinemode == offlinemode)
1271                 return 0;
1272
1273         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1274
1275         /*
1276          * This is a bit tricky. When you set offlinemode, there is no
1277          * way to differentiate between attempting offline mode and
1278          * resuming offlinemode from last saved profile. We need that
1279          * information in rfkill_update, otherwise it falls back on the
1280          * technology's persistent state. Hence we set the offline mode here
1281          * but save it & call the notifier only if its successful.
1282          */
1283
1284         global_offlinemode = offlinemode;
1285
1286         /* Traverse technology list, enable/disable each technology. */
1287         for (list = technology_list; list; list = list->next) {
1288                 struct connman_technology *technology = list->data;
1289
1290                 if (offlinemode)
1291                         err = technology_disable(technology, FALSE);
1292
1293                 if (!offlinemode && technology->enable_persistent)
1294                         err = technology_enable(technology, FALSE);
1295         }
1296
1297         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1298                 connman_technology_save_offlinemode();
1299                 __connman_notifier_offlinemode(offlinemode);
1300         } else
1301                 global_offlinemode = connman_technology_load_offlinemode();
1302
1303         return err;
1304 }
1305
1306 void __connman_technology_set_connected(enum connman_service_type type,
1307                 connman_bool_t connected)
1308 {
1309         struct connman_technology *technology;
1310
1311         technology = technology_find(type);
1312         if (technology == NULL)
1313                 return;
1314
1315         DBG("technology %p connected %d", technology, connected);
1316
1317         technology->connected = connected;
1318
1319         connman_dbus_property_changed_basic(technology->path,
1320                         CONNMAN_TECHNOLOGY_INTERFACE, "Connected",
1321                         DBUS_TYPE_BOOLEAN, &connected);
1322 }
1323
1324 static connman_bool_t technology_apply_rfkill_change(struct connman_technology *technology,
1325                                                 connman_bool_t softblock,
1326                                                 connman_bool_t hardblock)
1327 {
1328         gboolean apply = TRUE;
1329         GList *start, *list;
1330
1331         if (technology->hardblocked == hardblock)
1332                 goto softblock_change;
1333
1334         start = g_hash_table_get_values(rfkill_list);
1335         for (list = start; list != NULL; list = list->next) {
1336                 struct connman_rfkill *rfkill = list->data;
1337
1338                 if (rfkill->type != technology->type)
1339                         continue;
1340
1341                 if (rfkill->hardblock != hardblock)
1342                         apply = FALSE;
1343         }
1344
1345         g_list_free(start);
1346
1347         if (apply == FALSE)
1348                 goto softblock_change;
1349
1350         technology->hardblocked = hardblock;
1351
1352         if (hardblock == TRUE) {
1353                 DBG("%s is switched off.", get_name(technology->type));
1354                 technology_disable(technology, TRUE);
1355                 technology_dbus_unregister(technology);
1356         } else {
1357                 technology_enable(technology, TRUE);
1358                 technology_dbus_register(technology);
1359         }
1360
1361 softblock_change:
1362         technology->softblocked = softblock;
1363
1364         return technology->hardblocked;
1365 }
1366
1367 int __connman_technology_add_rfkill(unsigned int index,
1368                                         enum connman_service_type type,
1369                                                 connman_bool_t softblock,
1370                                                 connman_bool_t hardblock)
1371 {
1372         struct connman_technology *technology;
1373         struct connman_rfkill *rfkill;
1374
1375         DBG("index %u type %d soft %u hard %u", index, type,
1376                                                         softblock, hardblock);
1377
1378         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1379         if (rfkill != NULL)
1380                 goto done;
1381
1382         rfkill = g_try_new0(struct connman_rfkill, 1);
1383         if (rfkill == NULL)
1384                 return -ENOMEM;
1385
1386         rfkill->index = index;
1387         rfkill->type = type;
1388         rfkill->softblock = softblock;
1389         rfkill->hardblock = hardblock;
1390
1391         g_hash_table_insert(rfkill_list, GINT_TO_POINTER(index), rfkill);
1392
1393 done:
1394         technology = technology_get(type);
1395         /* If there is no driver for this type, ignore it. */
1396         if (technology == NULL)
1397                 return -ENXIO;
1398
1399         technology->rfkill_driven = TRUE;
1400
1401         /* If hardblocked, there is no need to handle softblocked state */
1402         if (technology_apply_rfkill_change(technology,
1403                                         softblock, hardblock) == TRUE)
1404                 return 0;
1405
1406         /*
1407          * Depending on softblocked state we unblock/block according to
1408          * offlinemode and persistente state.
1409          */
1410         if (technology->softblocked == TRUE &&
1411                                 global_offlinemode == FALSE &&
1412                                 technology->enable_persistent == TRUE)
1413                 return __connman_rfkill_block(type, FALSE);
1414         else if (technology->softblocked == FALSE &&
1415                                 global_offlinemode == TRUE &&
1416                                 technology->enable_persistent == FALSE)
1417                 return __connman_rfkill_block(type, TRUE);
1418
1419         return 0;
1420 }
1421
1422 int __connman_technology_update_rfkill(unsigned int index,
1423                                         enum connman_service_type type,
1424                                                 connman_bool_t softblock,
1425                                                 connman_bool_t hardblock)
1426 {
1427         struct connman_technology *technology;
1428         struct connman_rfkill *rfkill;
1429
1430         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1431
1432         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1433         if (rfkill == NULL)
1434                 return -ENXIO;
1435
1436         if (rfkill->softblock == softblock &&
1437                                 rfkill->hardblock == hardblock)
1438                 return 0;
1439
1440         rfkill->softblock = softblock;
1441         rfkill->hardblock = hardblock;
1442
1443         technology = technology_find(type);
1444         /* If there is no driver for this type, ignore it. */
1445         if (technology == NULL)
1446                 return -ENXIO;
1447
1448         /* If hardblocked, there is no need to handle softblocked state */
1449         if (technology_apply_rfkill_change(technology,
1450                                         softblock, hardblock) == TRUE)
1451                 return 0;
1452
1453         if (global_offlinemode == TRUE)
1454                 return 0;
1455
1456         /*
1457          * Depending on softblocked state we unblock/block according to
1458          * persistent state.
1459          */
1460         if (technology->softblocked == TRUE &&
1461                                 technology->enable_persistent == TRUE)
1462                 return __connman_rfkill_block(type, FALSE);
1463         else if (technology->softblocked == FALSE &&
1464                                 technology->enable_persistent == FALSE)
1465                 return __connman_rfkill_block(type, TRUE);
1466
1467         return 0;
1468 }
1469
1470 int __connman_technology_remove_rfkill(unsigned int index,
1471                                         enum connman_service_type type)
1472 {
1473         struct connman_technology *technology;
1474         struct connman_rfkill *rfkill;
1475
1476         DBG("index %u", index);
1477
1478         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1479         if (rfkill == NULL)
1480                 return -ENXIO;
1481
1482         g_hash_table_remove(rfkill_list, GINT_TO_POINTER(index));
1483
1484         technology = technology_find(type);
1485         if (technology == NULL)
1486                 return -ENXIO;
1487
1488         technology_put(technology);
1489
1490         return 0;
1491 }
1492
1493 int __connman_technology_init(void)
1494 {
1495         DBG("");
1496
1497         connection = connman_dbus_get_connection();
1498
1499         rfkill_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1500                                                         NULL, free_rfkill);
1501
1502         global_offlinemode = connman_technology_load_offlinemode();
1503
1504         /* This will create settings file if it is missing */
1505         connman_technology_save_offlinemode();
1506
1507         return 0;
1508 }
1509
1510 void __connman_technology_cleanup(void)
1511 {
1512         DBG("");
1513
1514         g_hash_table_destroy(rfkill_list);
1515
1516         dbus_connection_unref(connection);
1517 }