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