src/technology.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;
  31
  32 static GHashTable *rfkill_table;
  33 static GHashTable *device_table;
  34 static GSList *technology_list = NULL;
  35
  36 struct connman_rfkill {
  37         unsigned int index;
  38         enum connman_service_type type;
  39         connman_bool_t softblock;
  40         connman_bool_t hardblock;
  41 };
  42
  43 enum connman_technology_state {
  44         CONNMAN_TECHNOLOGY_STATE_UNKNOWN   = 0,
  45         CONNMAN_TECHNOLOGY_STATE_OFFLINE   = 1,
  46         CONNMAN_TECHNOLOGY_STATE_AVAILABLE = 2,
  47         CONNMAN_TECHNOLOGY_STATE_BLOCKED   = 3,
  48         CONNMAN_TECHNOLOGY_STATE_ENABLED   = 4,
  49         CONNMAN_TECHNOLOGY_STATE_CONNECTED = 5,
  50 };
  51
  52 struct connman_technology {
  53         gint refcount;
  54         enum connman_service_type type;
  55         enum connman_technology_state state;
  56         char *path;
  57         GHashTable *rfkill_list;
  58         GSList *device_list;
  59         gint enabled;
  60         gint blocked;
  61
  62         struct connman_technology_driver *driver;
  63         void *driver_data;
  64 };
  65
  66 static GSList *driver_list = NULL;
  67
  68 static gint compare_priority(gconstpointer a, gconstpointer b)
  69 {
  70         const struct connman_technology_driver *driver1 = a;
  71         const struct connman_technology_driver *driver2 = b;
  72
  73         return driver2->priority - driver1->priority;
  74 }
  75
  76 /**
  77  * connman_technology_driver_register:
  78  * @driver: Technology driver definition
  79  *
  80  * Register a new technology driver
  81  *
  82  * Returns: %0 on success
  83  */
  84 int connman_technology_driver_register(struct connman_technology_driver *driver)
  85 {
  86         DBG("driver %p name %s", driver, driver->name);
  87
  88         driver_list = g_slist_insert_sorted(driver_list, driver,
  89                                                         compare_priority);
  90
  91         return 0;
  92 }
  93
  94 /**
  95  * connman_technology_driver_unregister:
  96  * @driver: Technology driver definition
  97  *
  98  * Remove a previously registered technology driver
  99  */
 100 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 101 {
 102         DBG("driver %p name %s", driver, driver->name);
 103
 104         driver_list = g_slist_remove(driver_list, driver);
 105 }
 106
 107 void __connman_technology_add_interface(enum connman_service_type type,
 108                                 int index, const char *name, const char *ident)
 109 {
 110         GSList *list;
 111
 112         switch (type) {
 113         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 114         case CONNMAN_SERVICE_TYPE_SYSTEM:
 115                 return;
 116         case CONNMAN_SERVICE_TYPE_ETHERNET:
 117         case CONNMAN_SERVICE_TYPE_WIFI:
 118         case CONNMAN_SERVICE_TYPE_WIMAX:
 119         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 120         case CONNMAN_SERVICE_TYPE_CELLULAR:
 121         case CONNMAN_SERVICE_TYPE_GPS:
 122         case CONNMAN_SERVICE_TYPE_VPN:
 123         case CONNMAN_SERVICE_TYPE_GADGET:
 124                 break;
 125         }
 126
 127         connman_info("Create interface %s [ %s ]", name,
 128                                 __connman_service_type2string(type));
 129
 130         for (list = technology_list; list; list = list->next) {
 131                 struct connman_technology *technology = list->data;
 132
 133                 if (technology->type != type)
 134                         continue;
 135
 136                 if (technology->driver == NULL)
 137                         continue;
 138
 139                 if (technology->driver->add_interface)
 140                         technology->driver->add_interface(technology,
 141                                                         index, name, ident);
 142         }
 143 }
 144
 145 void __connman_technology_remove_interface(enum connman_service_type type,
 146                                 int index, const char *name, const char *ident)
 147 {
 148         GSList *list;
 149
 150         switch (type) {
 151         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 152         case CONNMAN_SERVICE_TYPE_SYSTEM:
 153                 return;
 154         case CONNMAN_SERVICE_TYPE_ETHERNET:
 155         case CONNMAN_SERVICE_TYPE_WIFI:
 156         case CONNMAN_SERVICE_TYPE_WIMAX:
 157         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 158         case CONNMAN_SERVICE_TYPE_CELLULAR:
 159         case CONNMAN_SERVICE_TYPE_GPS:
 160         case CONNMAN_SERVICE_TYPE_VPN:
 161         case CONNMAN_SERVICE_TYPE_GADGET:
 162                 break;
 163         }
 164
 165         connman_info("Remove interface %s [ %s ]", name,
 166                                 __connman_service_type2string(type));
 167
 168         for (list = technology_list; list; list = list->next) {
 169                 struct connman_technology *technology = list->data;
 170
 171                 if (technology->type != type)
 172                         continue;
 173
 174                 if (technology->driver == NULL)
 175                         continue;
 176
 177                 if (technology->driver->remove_interface)
 178                         technology->driver->remove_interface(technology, index);
 179         }
 180 }
 181
 182 void connman_technology_tethering_notify(struct connman_technology *technology,
 183                                                         connman_bool_t enabled)
 184 {
 185         DBG("technology %p enabled %u", technology, enabled);
 186
 187         if (enabled == TRUE)
 188                 __connman_tethering_set_enabled();
 189         else
 190                 __connman_tethering_set_disabled();
 191 }
 192
 193 static int set_tethering(const char *bridge, connman_bool_t enabled)
 194 {
 195         GSList *list;
 196
 197         for (list = technology_list; list; list = list->next) {
 198                 struct connman_technology *technology = list->data;
 199
 200                 if (technology->driver == NULL)
 201                         continue;
 202
 203                 if (technology->driver->set_tethering)
 204                         technology->driver->set_tethering(technology,
 205                                                         bridge, enabled);
 206         }
 207
 208         return 0;
 209 }
 210
 211 int __connman_technology_enable_tethering(const char *bridge)
 212 {
 213         return set_tethering(bridge, TRUE);
 214 }
 215
 216 int __connman_technology_disable_tethering(const char *bridge)
 217 {
 218         return set_tethering(bridge, FALSE);
 219 }
 220
 221 int __connman_technology_set_regdom(const char *alpha2)
 222 {
 223         GSList *list;
 224
 225         for (list = technology_list; list; list = list->next) {
 226                 struct connman_technology *technology = list->data;
 227
 228                 if (technology->driver == NULL)
 229                         continue;
 230
 231                 if (technology->driver->set_regdom)
 232                         technology->driver->set_regdom(technology, alpha2);
 233         }
 234
 235         return 0;
 236 }
 237
 238 static void free_rfkill(gpointer data)
 239 {
 240         struct connman_rfkill *rfkill = data;
 241
 242         g_free(rfkill);
 243 }
 244
 245 void __connman_technology_list(DBusMessageIter *iter, void *user_data)
 246 {
 247         GSList *list;
 248
 249         for (list = technology_list; list; list = list->next) {
 250                 struct connman_technology *technology = list->data;
 251
 252                 if (technology->path == NULL)
 253                         continue;
 254
 255                 dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH,
 256                                                         &technology->path);
 257         }
 258 }
 259
 260 static void technologies_changed(void)
 261 {
 262         connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 263                         CONNMAN_MANAGER_INTERFACE, "Technologies",
 264                         DBUS_TYPE_OBJECT_PATH, __connman_technology_list, NULL);
 265 }
 266
 267 static const char *state2string(enum connman_technology_state state)
 268 {
 269         switch (state) {
 270         case CONNMAN_TECHNOLOGY_STATE_UNKNOWN:
 271                 break;
 272         case CONNMAN_TECHNOLOGY_STATE_OFFLINE:
 273                 return "offline";
 274         case CONNMAN_TECHNOLOGY_STATE_AVAILABLE:
 275                 return "available";
 276         case CONNMAN_TECHNOLOGY_STATE_BLOCKED:
 277                 return "blocked";
 278         case CONNMAN_TECHNOLOGY_STATE_ENABLED:
 279                 return "enabled";
 280         case CONNMAN_TECHNOLOGY_STATE_CONNECTED:
 281                 return "connected";
 282         }
 283
 284         return NULL;
 285 }
 286
 287 static void state_changed(struct connman_technology *technology)
 288 {
 289         const char *str;
 290
 291         str = state2string(technology->state);
 292         if (str == NULL)
 293                 return;
 294
 295         connman_dbus_property_changed_basic(technology->path,
 296                                 CONNMAN_TECHNOLOGY_INTERFACE, "State",
 297                                                 DBUS_TYPE_STRING, &str);
 298 }
 299
 300 static const char *get_name(enum connman_service_type type)
 301 {
 302         switch (type) {
 303         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 304         case CONNMAN_SERVICE_TYPE_SYSTEM:
 305         case CONNMAN_SERVICE_TYPE_GPS:
 306         case CONNMAN_SERVICE_TYPE_VPN:
 307         case CONNMAN_SERVICE_TYPE_GADGET:
 308                 break;
 309         case CONNMAN_SERVICE_TYPE_ETHERNET:
 310                 return "Wired";
 311         case CONNMAN_SERVICE_TYPE_WIFI:
 312                 return "WiFi";
 313         case CONNMAN_SERVICE_TYPE_WIMAX:
 314                 return "WiMAX";
 315         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 316                 return "Bluetooth";
 317         case CONNMAN_SERVICE_TYPE_CELLULAR:
 318                 return "3G";
 319         }
 320
 321         return NULL;
 322 }
 323
 324 static DBusMessage *get_properties(DBusConnection *conn,
 325                                         DBusMessage *message, void *user_data)
 326 {
 327         struct connman_technology *technology = user_data;
 328         DBusMessage *reply;
 329         DBusMessageIter array, dict;
 330         const char *str;
 331
 332         reply = dbus_message_new_method_return(message);
 333         if (reply == NULL)
 334                 return NULL;
 335
 336         dbus_message_iter_init_append(reply, &array);
 337
 338         connman_dbus_dict_open(&array, &dict);
 339
 340         str = state2string(technology->state);
 341         if (str != NULL)
 342                 connman_dbus_dict_append_basic(&dict, "State",
 343                                                 DBUS_TYPE_STRING, &str);
 344
 345         str = get_name(technology->type);
 346         if (str != NULL)
 347                 connman_dbus_dict_append_basic(&dict, "Name",
 348                                                 DBUS_TYPE_STRING, &str);
 349
 350         str = __connman_service_type2string(technology->type);
 351         if (str != NULL)
 352                 connman_dbus_dict_append_basic(&dict, "Type",
 353                                                 DBUS_TYPE_STRING, &str);
 354
 355         connman_dbus_dict_close(&array, &dict);
 356
 357         return reply;
 358 }
 359
 360 static GDBusMethodTable technology_methods[] = {
 361         { "GetProperties", "", "a{sv}", get_properties },
 362         { },
 363 };
 364
 365 static GDBusSignalTable technology_signals[] = {
 366         { "PropertyChanged", "sv" },
 367         { },
 368 };
 369
 370 static struct connman_technology *technology_find(enum connman_service_type type)
 371 {
 372         GSList *list;
 373
 374         DBG("type %d", type);
 375
 376         for (list = technology_list; list; list = list->next) {
 377                 struct connman_technology *technology = list->data;
 378
 379                 if (technology->type == type)
 380                         return technology;
 381         }
 382
 383         return NULL;
 384 }
 385
 386 static struct connman_technology *technology_get(enum connman_service_type type)
 387 {
 388         struct connman_technology *technology;
 389         const char *str;
 390         GSList *list;
 391
 392         DBG("type %d", type);
 393
 394         technology = technology_find(type);
 395         if (technology != NULL) {
 396                 g_atomic_int_inc(&technology->refcount);
 397                 goto done;
 398         }
 399
 400         str = __connman_service_type2string(type);
 401         if (str == NULL)
 402                 return NULL;
 403
 404         technology = g_try_new0(struct connman_technology, 1);
 405         if (technology == NULL)
 406                 return NULL;
 407
 408         technology->refcount = 1;
 409
 410         technology->type = type;
 411         technology->path = g_strdup_printf("%s/technology/%s",
 412                                                         CONNMAN_PATH, str);
 413
 414         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 415                                                         NULL, free_rfkill);
 416         technology->device_list = NULL;
 417
 418         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 419
 420         if (g_dbus_register_interface(connection, technology->path,
 421                                         CONNMAN_TECHNOLOGY_INTERFACE,
 422                                         technology_methods, technology_signals,
 423                                         NULL, technology, NULL) == FALSE) {
 424                 connman_error("Failed to register %s", technology->path);
 425                 g_free(technology);
 426                 return NULL;
 427         }
 428
 429         technology_list = g_slist_append(technology_list, technology);
 430
 431         technologies_changed();
 432
 433         if (technology->driver != NULL)
 434                 goto done;
 435
 436         for (list = driver_list; list; list = list->next) {
 437                 struct connman_technology_driver *driver = list->data;
 438
 439                 DBG("driver %p name %s", driver, driver->name);
 440
 441                 if (driver->type != technology->type)
 442                         continue;
 443
 444                 if (driver->probe(technology) == 0) {
 445                         technology->driver = driver;
 446                         break;
 447                 }
 448         }
 449
 450 done:
 451         DBG("technology %p", technology);
 452
 453         return technology;
 454 }
 455
 456 static void technology_put(struct connman_technology *technology)
 457 {
 458         DBG("technology %p", technology);
 459
 460         if (g_atomic_int_dec_and_test(&technology->refcount) == FALSE)
 461                 return;
 462
 463         if (technology->driver) {
 464                 technology->driver->remove(technology);
 465                 technology->driver = NULL;
 466         }
 467
 468         technology_list = g_slist_remove(technology_list, technology);
 469
 470         technologies_changed();
 471
 472         g_dbus_unregister_interface(connection, technology->path,
 473                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 474
 475         g_slist_free(technology->device_list);
 476         g_hash_table_destroy(technology->rfkill_list);
 477
 478         g_free(technology->path);
 479         g_free(technology);
 480 }
 481
 482 static void unregister_technology(gpointer data)
 483 {
 484         struct connman_technology *technology = data;
 485
 486         technology_put(technology);
 487 }
 488
 489 int __connman_technology_add_device(struct connman_device *device)
 490 {
 491         struct connman_technology *technology;
 492         enum connman_service_type type;
 493
 494         DBG("device %p", device);
 495
 496         type = __connman_device_get_service_type(device);
 497         __connman_notifier_register(type);
 498
 499         technology = technology_get(type);
 500         if (technology == NULL)
 501                 return -ENXIO;
 502
 503         g_hash_table_insert(device_table, device, technology);
 504
 505         if (g_atomic_int_get(&technology->blocked))
 506                 goto done;
 507
 508         technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 509
 510         state_changed(technology);
 511
 512 done:
 513
 514         technology->device_list = g_slist_append(technology->device_list,
 515                                                                 device);
 516
 517         return 0;
 518 }
 519
 520 int __connman_technology_remove_device(struct connman_device *device)
 521 {
 522         struct connman_technology *technology;
 523         enum connman_service_type type;
 524
 525         DBG("device %p", device);
 526
 527         type = __connman_device_get_service_type(device);
 528         __connman_notifier_unregister(type);
 529
 530         technology = g_hash_table_lookup(device_table, device);
 531         if (technology == NULL)
 532                 return -ENXIO;
 533
 534         technology->device_list = g_slist_remove(technology->device_list,
 535                                                                 device);
 536         if (technology->device_list == NULL) {
 537                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 538                 state_changed(technology);
 539         }
 540
 541         g_hash_table_remove(device_table, device);
 542
 543         return 0;
 544 }
 545
 546 int __connman_technology_enable_device(struct connman_device *device)
 547 {
 548         struct connman_technology *technology;
 549         enum connman_service_type type;
 550
 551         DBG("device %p", device);
 552
 553         technology = g_hash_table_lookup(device_table, device);
 554         if (technology == NULL)
 555                 return -ENXIO;
 556
 557         if (g_atomic_int_get(&technology->blocked))
 558                 return -ERFKILL;
 559
 560         type = __connman_device_get_service_type(device);
 561         __connman_notifier_enable(type);
 562
 563         if (g_atomic_int_exchange_and_add(&technology->enabled, 1) == 0) {
 564                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 565                 state_changed(technology);
 566         }
 567
 568         return 0;
 569 }
 570
 571 int __connman_technology_disable_device(struct connman_device *device)
 572 {
 573         struct connman_technology *technology;
 574         enum connman_service_type type;
 575         GSList *list;
 576
 577         DBG("device %p", device);
 578
 579         type = __connman_device_get_service_type(device);
 580         __connman_notifier_disable(type);
 581
 582         technology = g_hash_table_lookup(device_table, device);
 583         if (technology == NULL)
 584                 return -ENXIO;
 585
 586         if (g_atomic_int_dec_and_test(&technology->enabled) == TRUE) {
 587                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 588                 state_changed(technology);
 589         }
 590
 591         for (list = technology->device_list; list; list = list->next) {
 592                 struct connman_device *device = list->data;
 593
 594                 if (__connman_device_get_blocked(device) == FALSE)
 595                         return 0;
 596         }
 597
 598         technology->state = CONNMAN_TECHNOLOGY_STATE_BLOCKED;
 599         state_changed(technology);
 600
 601         return 0;
 602 }
 603
 604 static void technology_blocked(struct connman_technology *technology,
 605                                 connman_bool_t blocked)
 606 {
 607         GSList *list;
 608
 609         for (list = technology->device_list; list; list = list->next) {
 610                 struct connman_device *device = list->data;
 611
 612                 __connman_device_set_blocked(device, blocked);
 613         }
 614 }
 615
 616 int __connman_technology_add_rfkill(unsigned int index,
 617                                         enum connman_service_type type,
 618                                                 connman_bool_t softblock,
 619                                                 connman_bool_t hardblock)
 620 {
 621         struct connman_technology *technology;
 622         struct connman_rfkill *rfkill;
 623         connman_bool_t blocked;
 624
 625         DBG("index %u type %d soft %u hard %u", index, type,
 626                                                         softblock, hardblock);
 627
 628         technology = technology_get(type);
 629         if (technology == NULL)
 630                 return -ENXIO;
 631
 632         rfkill = g_try_new0(struct connman_rfkill, 1);
 633         if (rfkill == NULL)
 634                 return -ENOMEM;
 635
 636         rfkill->index = index;
 637         rfkill->type = type;
 638         rfkill->softblock = softblock;
 639         rfkill->hardblock = hardblock;
 640
 641         g_hash_table_replace(rfkill_table, &rfkill->index, technology);
 642
 643         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
 644
 645         blocked = (softblock || hardblock) ? TRUE : FALSE;
 646         if (blocked == FALSE)
 647                 return 0;
 648
 649         if (g_atomic_int_exchange_and_add(&technology->blocked, 1) == 0) {
 650                 technology_blocked(technology, TRUE);
 651
 652                 technology->state = CONNMAN_TECHNOLOGY_STATE_BLOCKED;
 653                 state_changed(technology);
 654         }
 655
 656         return 0;
 657 }
 658
 659 int __connman_technology_update_rfkill(unsigned int index,
 660                                                 connman_bool_t softblock,
 661                                                 connman_bool_t hardblock)
 662 {
 663         struct connman_technology *technology;
 664         struct connman_rfkill *rfkill;
 665         connman_bool_t blocked, old_blocked;
 666
 667         DBG("index %u soft %u hard %u", index, softblock, hardblock);
 668
 669         technology = g_hash_table_lookup(rfkill_table, &index);
 670         if (technology == NULL)
 671                 return -ENXIO;
 672
 673         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
 674         if (rfkill == NULL)
 675                 return -ENXIO;
 676
 677         old_blocked = (rfkill->softblock || rfkill->hardblock) ? TRUE : FALSE;
 678         blocked = (softblock || hardblock) ? TRUE : FALSE;
 679
 680         rfkill->softblock = softblock;
 681         rfkill->hardblock = hardblock;
 682
 683         if (blocked == old_blocked)
 684                 return 0;
 685
 686         if (blocked) {
 687                 guint n_blocked;
 688
 689                 n_blocked =
 690                         g_atomic_int_exchange_and_add(&technology->blocked, 1);
 691                 if (n_blocked != g_hash_table_size(technology->rfkill_list) - 1)
 692                         return 0;
 693
 694                 technology_blocked(technology, blocked);
 695                 technology->state = CONNMAN_TECHNOLOGY_STATE_BLOCKED;
 696                 state_changed(technology);
 697         } else {
 698                 if (g_atomic_int_dec_and_test(&technology->blocked) == FALSE)
 699                         return 0;
 700
 701                 technology_blocked(technology, blocked);
 702                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 703                 state_changed(technology);
 704         }
 705
 706         return 0;
 707 }
 708
 709 int __connman_technology_remove_rfkill(unsigned int index)
 710 {
 711         struct connman_technology *technology;
 712         struct connman_rfkill *rfkill;
 713         connman_bool_t blocked;
 714
 715         DBG("index %u", index);
 716
 717         technology = g_hash_table_lookup(rfkill_table, &index);
 718         if (technology == NULL)
 719                 return -ENXIO;
 720
 721         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
 722         if (rfkill == NULL)
 723                 return -ENXIO;
 724
 725         blocked = (rfkill->softblock || rfkill->hardblock) ? TRUE : FALSE;
 726
 727         g_hash_table_remove(technology->rfkill_list, &index);
 728
 729         g_hash_table_remove(rfkill_table, &index);
 730
 731         if (blocked &&
 732                 g_atomic_int_dec_and_test(&technology->blocked) == TRUE) {
 733                 technology_blocked(technology, FALSE);
 734                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 735                 state_changed(technology);
 736         }
 737
 738         return 0;
 739 }
 740
 741 connman_bool_t __connman_technology_get_blocked(enum connman_service_type type)
 742 {
 743         struct connman_technology *technology;
 744
 745         technology = technology_find(type);
 746         if (technology == NULL)
 747                 return FALSE;
 748
 749         if (g_atomic_int_get(&technology->blocked))
 750                 return TRUE;
 751
 752         return FALSE;
 753 }
 754
 755 int __connman_technology_init(void)
 756 {
 757         DBG("");
 758
 759         connection = connman_dbus_get_connection();
 760
 761         rfkill_table = g_hash_table_new_full(g_int_hash, g_int_equal,
 762                                                 NULL, unregister_technology);
 763         device_table = g_hash_table_new_full(g_direct_hash, g_direct_equal,
 764                                                 NULL, unregister_technology);
 765
 766         return 0;
 767 }
 768
 769 void __connman_technology_cleanup(void)
 770 {
 771         DBG("");
 772
 773         g_hash_table_destroy(device_table);
 774         g_hash_table_destroy(rfkill_table);
 775
 776         dbus_connection_unref(connection);
 777 }