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         char *regdom;
  62
  63         struct connman_technology_driver *driver;
  64         void *driver_data;
  65 };
  66
  67 static GSList *driver_list = NULL;
  68
  69 static gint compare_priority(gconstpointer a, gconstpointer b)
  70 {
  71         const struct connman_technology_driver *driver1 = a;
  72         const struct connman_technology_driver *driver2 = b;
  73
  74         return driver2->priority - driver1->priority;
  75 }
  76
  77 /**
  78  * connman_technology_driver_register:
  79  * @driver: Technology driver definition
  80  *
  81  * Register a new technology driver
  82  *
  83  * Returns: %0 on success
  84  */
  85 int connman_technology_driver_register(struct connman_technology_driver *driver)
  86 {
  87         GSList *list;
  88         struct connman_technology *technology;
  89
  90         DBG("driver %p name %s", driver, driver->name);
  91
  92         driver_list = g_slist_insert_sorted(driver_list, driver,
  93                                                         compare_priority);
  94
  95         for (list = technology_list; list; list = list->next) {
  96                 technology = list->data;
  97
  98                 if (technology->driver != NULL)
  99                         continue;
 100
 101                 if (technology->type == driver->type)
 102                         technology->driver = driver;
 103         }
 104
 105         return 0;
 106 }
 107
 108 /**
 109  * connman_technology_driver_unregister:
 110  * @driver: Technology driver definition
 111  *
 112  * Remove a previously registered technology driver
 113  */
 114 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 115 {
 116         GSList *list;
 117         struct connman_technology *technology;
 118
 119         DBG("driver %p name %s", driver, driver->name);
 120
 121         for (list = technology_list; list; list = list->next) {
 122                 technology = list->data;
 123
 124                 if (technology->driver == NULL)
 125                         continue;
 126
 127                 if (technology->type == driver->type) {
 128                         technology->driver->remove(technology);
 129                         technology->driver = NULL;
 130                 }
 131         }
 132
 133         driver_list = g_slist_remove(driver_list, driver);
 134 }
 135
 136 void __connman_technology_add_interface(enum connman_service_type type,
 137                                 int index, const char *name, const char *ident)
 138 {
 139         GSList *list;
 140
 141         switch (type) {
 142         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 143         case CONNMAN_SERVICE_TYPE_SYSTEM:
 144                 return;
 145         case CONNMAN_SERVICE_TYPE_ETHERNET:
 146         case CONNMAN_SERVICE_TYPE_WIFI:
 147         case CONNMAN_SERVICE_TYPE_WIMAX:
 148         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 149         case CONNMAN_SERVICE_TYPE_CELLULAR:
 150         case CONNMAN_SERVICE_TYPE_GPS:
 151         case CONNMAN_SERVICE_TYPE_VPN:
 152         case CONNMAN_SERVICE_TYPE_GADGET:
 153                 break;
 154         }
 155
 156         connman_info("Create interface %s [ %s ]", name,
 157                                 __connman_service_type2string(type));
 158
 159         for (list = technology_list; list; list = list->next) {
 160                 struct connman_technology *technology = list->data;
 161
 162                 if (technology->type != type)
 163                         continue;
 164
 165                 if (technology->driver == NULL)
 166                         continue;
 167
 168                 if (technology->driver->add_interface)
 169                         technology->driver->add_interface(technology,
 170                                                         index, name, ident);
 171         }
 172 }
 173
 174 void __connman_technology_remove_interface(enum connman_service_type type,
 175                                 int index, const char *name, const char *ident)
 176 {
 177         GSList *list;
 178
 179         switch (type) {
 180         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 181         case CONNMAN_SERVICE_TYPE_SYSTEM:
 182                 return;
 183         case CONNMAN_SERVICE_TYPE_ETHERNET:
 184         case CONNMAN_SERVICE_TYPE_WIFI:
 185         case CONNMAN_SERVICE_TYPE_WIMAX:
 186         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 187         case CONNMAN_SERVICE_TYPE_CELLULAR:
 188         case CONNMAN_SERVICE_TYPE_GPS:
 189         case CONNMAN_SERVICE_TYPE_VPN:
 190         case CONNMAN_SERVICE_TYPE_GADGET:
 191                 break;
 192         }
 193
 194         connman_info("Remove interface %s [ %s ]", name,
 195                                 __connman_service_type2string(type));
 196
 197         for (list = technology_list; list; list = list->next) {
 198                 struct connman_technology *technology = list->data;
 199
 200                 if (technology->type != type)
 201                         continue;
 202
 203                 if (technology->driver == NULL)
 204                         continue;
 205
 206                 if (technology->driver->remove_interface)
 207                         technology->driver->remove_interface(technology, index);
 208         }
 209 }
 210
 211 void connman_technology_tethering_notify(struct connman_technology *technology,
 212                                                         connman_bool_t enabled)
 213 {
 214         DBG("technology %p enabled %u", technology, enabled);
 215
 216         if (enabled == TRUE)
 217                 __connman_tethering_set_enabled();
 218         else
 219                 __connman_tethering_set_disabled();
 220 }
 221
 222 static int set_tethering(const char *bridge, connman_bool_t enabled)
 223 {
 224         GSList *list;
 225
 226         for (list = technology_list; list; list = list->next) {
 227                 struct connman_technology *technology = list->data;
 228
 229                 if (technology->driver == NULL)
 230                         continue;
 231
 232                 if (technology->driver->set_tethering)
 233                         technology->driver->set_tethering(technology,
 234                                                         bridge, enabled);
 235         }
 236
 237         return 0;
 238 }
 239
 240 int __connman_technology_enable_tethering(const char *bridge)
 241 {
 242         return set_tethering(bridge, TRUE);
 243 }
 244
 245 int __connman_technology_disable_tethering(const char *bridge)
 246 {
 247         return set_tethering(bridge, FALSE);
 248 }
 249
 250 void connman_technology_regdom_notify(struct connman_technology *technology,
 251                                                         const char *alpha2)
 252 {
 253         DBG("");
 254
 255         if (alpha2 == NULL)
 256                 connman_error("Failed to set regulatory domain");
 257         else
 258                 DBG("Regulatory domain set to %s", alpha2);
 259
 260         g_free(technology->regdom);
 261         technology->regdom = g_strdup(alpha2);
 262 }
 263
 264 int __connman_technology_set_regdom(const char *alpha2)
 265 {
 266         GSList *list;
 267
 268         for (list = technology_list; list; list = list->next) {
 269                 struct connman_technology *technology = list->data;
 270
 271                 if (technology->driver == NULL)
 272                         continue;
 273
 274                 if (technology->driver->set_regdom)
 275                         technology->driver->set_regdom(technology, alpha2);
 276         }
 277
 278         return 0;
 279 }
 280
 281 static void free_rfkill(gpointer data)
 282 {
 283         struct connman_rfkill *rfkill = data;
 284
 285         g_free(rfkill);
 286 }
 287
 288 void __connman_technology_list(DBusMessageIter *iter, void *user_data)
 289 {
 290         GSList *list;
 291
 292         for (list = technology_list; list; list = list->next) {
 293                 struct connman_technology *technology = list->data;
 294
 295                 if (technology->path == NULL)
 296                         continue;
 297
 298                 dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH,
 299                                                         &technology->path);
 300         }
 301 }
 302
 303 static void technologies_changed(void)
 304 {
 305         connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 306                         CONNMAN_MANAGER_INTERFACE, "Technologies",
 307                         DBUS_TYPE_OBJECT_PATH, __connman_technology_list, NULL);
 308 }
 309
 310 static const char *state2string(enum connman_technology_state state)
 311 {
 312         switch (state) {
 313         case CONNMAN_TECHNOLOGY_STATE_UNKNOWN:
 314                 break;
 315         case CONNMAN_TECHNOLOGY_STATE_OFFLINE:
 316                 return "offline";
 317         case CONNMAN_TECHNOLOGY_STATE_AVAILABLE:
 318                 return "available";
 319         case CONNMAN_TECHNOLOGY_STATE_BLOCKED:
 320                 return "blocked";
 321         case CONNMAN_TECHNOLOGY_STATE_ENABLED:
 322                 return "enabled";
 323         case CONNMAN_TECHNOLOGY_STATE_CONNECTED:
 324                 return "connected";
 325         }
 326
 327         return NULL;
 328 }
 329
 330 static void state_changed(struct connman_technology *technology)
 331 {
 332         const char *str;
 333
 334         str = state2string(technology->state);
 335         if (str == NULL)
 336                 return;
 337
 338         connman_dbus_property_changed_basic(technology->path,
 339                                 CONNMAN_TECHNOLOGY_INTERFACE, "State",
 340                                                 DBUS_TYPE_STRING, &str);
 341 }
 342
 343 static const char *get_name(enum connman_service_type type)
 344 {
 345         switch (type) {
 346         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 347         case CONNMAN_SERVICE_TYPE_SYSTEM:
 348         case CONNMAN_SERVICE_TYPE_GPS:
 349         case CONNMAN_SERVICE_TYPE_VPN:
 350         case CONNMAN_SERVICE_TYPE_GADGET:
 351                 break;
 352         case CONNMAN_SERVICE_TYPE_ETHERNET:
 353                 return "Wired";
 354         case CONNMAN_SERVICE_TYPE_WIFI:
 355                 return "WiFi";
 356         case CONNMAN_SERVICE_TYPE_WIMAX:
 357                 return "WiMAX";
 358         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 359                 return "Bluetooth";
 360         case CONNMAN_SERVICE_TYPE_CELLULAR:
 361                 return "3G";
 362         }
 363
 364         return NULL;
 365 }
 366
 367 static DBusMessage *get_properties(DBusConnection *conn,
 368                                         DBusMessage *message, void *user_data)
 369 {
 370         struct connman_technology *technology = user_data;
 371         DBusMessage *reply;
 372         DBusMessageIter array, dict;
 373         const char *str;
 374
 375         reply = dbus_message_new_method_return(message);
 376         if (reply == NULL)
 377                 return NULL;
 378
 379         dbus_message_iter_init_append(reply, &array);
 380
 381         connman_dbus_dict_open(&array, &dict);
 382
 383         str = state2string(technology->state);
 384         if (str != NULL)
 385                 connman_dbus_dict_append_basic(&dict, "State",
 386                                                 DBUS_TYPE_STRING, &str);
 387
 388         str = get_name(technology->type);
 389         if (str != NULL)
 390                 connman_dbus_dict_append_basic(&dict, "Name",
 391                                                 DBUS_TYPE_STRING, &str);
 392
 393         str = __connman_service_type2string(technology->type);
 394         if (str != NULL)
 395                 connman_dbus_dict_append_basic(&dict, "Type",
 396                                                 DBUS_TYPE_STRING, &str);
 397
 398         connman_dbus_dict_close(&array, &dict);
 399
 400         return reply;
 401 }
 402
 403 static GDBusMethodTable technology_methods[] = {
 404         { "GetProperties", "", "a{sv}", get_properties },
 405         { },
 406 };
 407
 408 static GDBusSignalTable technology_signals[] = {
 409         { "PropertyChanged", "sv" },
 410         { },
 411 };
 412
 413 static struct connman_technology *technology_find(enum connman_service_type type)
 414 {
 415         GSList *list;
 416
 417         DBG("type %d", type);
 418
 419         for (list = technology_list; list; list = list->next) {
 420                 struct connman_technology *technology = list->data;
 421
 422                 if (technology->type == type)
 423                         return technology;
 424         }
 425
 426         return NULL;
 427 }
 428
 429 static struct connman_technology *technology_get(enum connman_service_type type)
 430 {
 431         struct connman_technology *technology;
 432         const char *str;
 433         GSList *list;
 434
 435         DBG("type %d", type);
 436
 437         technology = technology_find(type);
 438         if (technology != NULL) {
 439                 g_atomic_int_inc(&technology->refcount);
 440                 goto done;
 441         }
 442
 443         str = __connman_service_type2string(type);
 444         if (str == NULL)
 445                 return NULL;
 446
 447         technology = g_try_new0(struct connman_technology, 1);
 448         if (technology == NULL)
 449                 return NULL;
 450
 451         technology->refcount = 1;
 452
 453         technology->type = type;
 454         technology->path = g_strdup_printf("%s/technology/%s",
 455                                                         CONNMAN_PATH, str);
 456
 457         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 458                                                         NULL, free_rfkill);
 459         technology->device_list = NULL;
 460
 461         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 462
 463         if (g_dbus_register_interface(connection, technology->path,
 464                                         CONNMAN_TECHNOLOGY_INTERFACE,
 465                                         technology_methods, technology_signals,
 466                                         NULL, technology, NULL) == FALSE) {
 467                 connman_error("Failed to register %s", technology->path);
 468                 g_free(technology);
 469                 return NULL;
 470         }
 471
 472         technology_list = g_slist_append(technology_list, technology);
 473
 474         technologies_changed();
 475
 476         if (technology->driver != NULL)
 477                 goto done;
 478
 479         for (list = driver_list; list; list = list->next) {
 480                 struct connman_technology_driver *driver = list->data;
 481
 482                 DBG("driver %p name %s", driver, driver->name);
 483
 484                 if (driver->type != technology->type)
 485                         continue;
 486
 487                 if (driver->probe(technology) == 0) {
 488                         technology->driver = driver;
 489                         break;
 490                 }
 491         }
 492
 493 done:
 494         DBG("technology %p", technology);
 495
 496         return technology;
 497 }
 498
 499 static void technology_put(struct connman_technology *technology)
 500 {
 501         DBG("technology %p", technology);
 502
 503         if (g_atomic_int_dec_and_test(&technology->refcount) == FALSE)
 504                 return;
 505
 506         if (technology->driver) {
 507                 technology->driver->remove(technology);
 508                 technology->driver = NULL;
 509         }
 510
 511         technology_list = g_slist_remove(technology_list, technology);
 512
 513         technologies_changed();
 514
 515         g_dbus_unregister_interface(connection, technology->path,
 516                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 517
 518         g_slist_free(technology->device_list);
 519         g_hash_table_destroy(technology->rfkill_list);
 520
 521         g_free(technology->path);
 522         g_free(technology->regdom);
 523         g_free(technology);
 524 }
 525
 526 static void unregister_technology(gpointer data)
 527 {
 528         struct connman_technology *technology = data;
 529
 530         technology_put(technology);
 531 }
 532
 533 int __connman_technology_add_device(struct connman_device *device)
 534 {
 535         struct connman_technology *technology;
 536         enum connman_service_type type;
 537
 538         DBG("device %p", device);
 539
 540         type = __connman_device_get_service_type(device);
 541         __connman_notifier_register(type);
 542
 543         technology = technology_get(type);
 544         if (technology == NULL)
 545                 return -ENXIO;
 546
 547         g_hash_table_insert(device_table, device, technology);
 548
 549         if (g_atomic_int_get(&technology->blocked))
 550                 goto done;
 551
 552         technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 553
 554         state_changed(technology);
 555
 556 done:
 557
 558         technology->device_list = g_slist_append(technology->device_list,
 559                                                                 device);
 560
 561         return 0;
 562 }
 563
 564 int __connman_technology_remove_device(struct connman_device *device)
 565 {
 566         struct connman_technology *technology;
 567         enum connman_service_type type;
 568
 569         DBG("device %p", device);
 570
 571         type = __connman_device_get_service_type(device);
 572         __connman_notifier_unregister(type);
 573
 574         technology = g_hash_table_lookup(device_table, device);
 575         if (technology == NULL)
 576                 return -ENXIO;
 577
 578         technology->device_list = g_slist_remove(technology->device_list,
 579                                                                 device);
 580         if (technology->device_list == NULL) {
 581                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 582                 state_changed(technology);
 583         }
 584
 585         g_hash_table_remove(device_table, device);
 586
 587         return 0;
 588 }
 589
 590 int __connman_technology_enable_device(struct connman_device *device)
 591 {
 592         struct connman_technology *technology;
 593         enum connman_service_type type;
 594
 595         DBG("device %p", device);
 596
 597         technology = g_hash_table_lookup(device_table, device);
 598         if (technology == NULL)
 599                 return -ENXIO;
 600
 601         if (g_atomic_int_get(&technology->blocked))
 602                 return -ERFKILL;
 603
 604         type = __connman_device_get_service_type(device);
 605         __connman_notifier_enable(type);
 606
 607         if (g_atomic_int_exchange_and_add(&technology->enabled, 1) == 0) {
 608                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 609                 state_changed(technology);
 610         }
 611
 612         return 0;
 613 }
 614
 615 int __connman_technology_disable_device(struct connman_device *device)
 616 {
 617         struct connman_technology *technology;
 618         enum connman_service_type type;
 619         GSList *list;
 620
 621         DBG("device %p", device);
 622
 623         type = __connman_device_get_service_type(device);
 624         __connman_notifier_disable(type);
 625
 626         technology = g_hash_table_lookup(device_table, device);
 627         if (technology == NULL)
 628                 return -ENXIO;
 629
 630         if (g_atomic_int_dec_and_test(&technology->enabled) == TRUE) {
 631                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 632                 state_changed(technology);
 633         }
 634
 635         for (list = technology->device_list; list; list = list->next) {
 636                 struct connman_device *device = list->data;
 637
 638                 if (__connman_device_get_blocked(device) == FALSE)
 639                         return 0;
 640         }
 641
 642         technology->state = CONNMAN_TECHNOLOGY_STATE_BLOCKED;
 643         state_changed(technology);
 644
 645         return 0;
 646 }
 647
 648 static void technology_blocked(struct connman_technology *technology,
 649                                 connman_bool_t blocked)
 650 {
 651         GSList *list;
 652
 653         for (list = technology->device_list; list; list = list->next) {
 654                 struct connman_device *device = list->data;
 655
 656                 __connman_device_set_blocked(device, blocked);
 657         }
 658 }
 659
 660 int __connman_technology_add_rfkill(unsigned int index,
 661                                         enum connman_service_type type,
 662                                                 connman_bool_t softblock,
 663                                                 connman_bool_t hardblock)
 664 {
 665         struct connman_technology *technology;
 666         struct connman_rfkill *rfkill;
 667         connman_bool_t blocked;
 668
 669         DBG("index %u type %d soft %u hard %u", index, type,
 670                                                         softblock, hardblock);
 671
 672         technology = technology_get(type);
 673         if (technology == NULL)
 674                 return -ENXIO;
 675
 676         rfkill = g_try_new0(struct connman_rfkill, 1);
 677         if (rfkill == NULL)
 678                 return -ENOMEM;
 679
 680         rfkill->index = index;
 681         rfkill->type = type;
 682         rfkill->softblock = softblock;
 683         rfkill->hardblock = hardblock;
 684
 685         g_hash_table_replace(rfkill_table, &rfkill->index, technology);
 686
 687         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
 688
 689         blocked = (softblock || hardblock) ? TRUE : FALSE;
 690         if (blocked == FALSE)
 691                 return 0;
 692
 693         if (g_atomic_int_exchange_and_add(&technology->blocked, 1) == 0) {
 694                 technology_blocked(technology, TRUE);
 695
 696                 technology->state = CONNMAN_TECHNOLOGY_STATE_BLOCKED;
 697                 state_changed(technology);
 698         }
 699
 700         return 0;
 701 }
 702
 703 int __connman_technology_update_rfkill(unsigned int index,
 704                                                 connman_bool_t softblock,
 705                                                 connman_bool_t hardblock)
 706 {
 707         struct connman_technology *technology;
 708         struct connman_rfkill *rfkill;
 709         connman_bool_t blocked, old_blocked;
 710
 711         DBG("index %u soft %u hard %u", index, softblock, hardblock);
 712
 713         technology = g_hash_table_lookup(rfkill_table, &index);
 714         if (technology == NULL)
 715                 return -ENXIO;
 716
 717         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
 718         if (rfkill == NULL)
 719                 return -ENXIO;
 720
 721         old_blocked = (rfkill->softblock || rfkill->hardblock) ? TRUE : FALSE;
 722         blocked = (softblock || hardblock) ? TRUE : FALSE;
 723
 724         rfkill->softblock = softblock;
 725         rfkill->hardblock = hardblock;
 726
 727         if (blocked == old_blocked)
 728                 return 0;
 729
 730         if (blocked) {
 731                 guint n_blocked;
 732
 733                 n_blocked =
 734                         g_atomic_int_exchange_and_add(&technology->blocked, 1);
 735                 if (n_blocked != g_hash_table_size(technology->rfkill_list) - 1)
 736                         return 0;
 737
 738                 technology_blocked(technology, blocked);
 739                 technology->state = CONNMAN_TECHNOLOGY_STATE_BLOCKED;
 740                 state_changed(technology);
 741         } else {
 742                 if (g_atomic_int_dec_and_test(&technology->blocked) == FALSE)
 743                         return 0;
 744
 745                 technology_blocked(technology, blocked);
 746                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 747                 state_changed(technology);
 748         }
 749
 750         return 0;
 751 }
 752
 753 int __connman_technology_remove_rfkill(unsigned int index)
 754 {
 755         struct connman_technology *technology;
 756         struct connman_rfkill *rfkill;
 757         connman_bool_t blocked;
 758
 759         DBG("index %u", index);
 760
 761         technology = g_hash_table_lookup(rfkill_table, &index);
 762         if (technology == NULL)
 763                 return -ENXIO;
 764
 765         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
 766         if (rfkill == NULL)
 767                 return -ENXIO;
 768
 769         blocked = (rfkill->softblock || rfkill->hardblock) ? TRUE : FALSE;
 770
 771         g_hash_table_remove(technology->rfkill_list, &index);
 772
 773         g_hash_table_remove(rfkill_table, &index);
 774
 775         if (blocked &&
 776                 g_atomic_int_dec_and_test(&technology->blocked) == TRUE) {
 777                 technology_blocked(technology, FALSE);
 778                 technology->state = CONNMAN_TECHNOLOGY_STATE_AVAILABLE;
 779                 state_changed(technology);
 780         }
 781
 782         return 0;
 783 }
 784
 785 connman_bool_t __connman_technology_get_blocked(enum connman_service_type type)
 786 {
 787         struct connman_technology *technology;
 788
 789         technology = technology_find(type);
 790         if (technology == NULL)
 791                 return FALSE;
 792
 793         if (g_atomic_int_get(&technology->blocked))
 794                 return TRUE;
 795
 796         return FALSE;
 797 }
 798
 799 int __connman_technology_init(void)
 800 {
 801         DBG("");
 802
 803         connection = connman_dbus_get_connection();
 804
 805         rfkill_table = g_hash_table_new_full(g_int_hash, g_int_equal,
 806                                                 NULL, unregister_technology);
 807         device_table = g_hash_table_new_full(g_direct_hash, g_direct_equal,
 808                                                 NULL, unregister_technology);
 809
 810         return 0;
 811 }
 812
 813 void __connman_technology_cleanup(void)
 814 {
 815         DBG("");
 816
 817         g_hash_table_destroy(device_table);
 818         g_hash_table_destroy(rfkill_table);
 819
 820         dbus_connection_unref(connection);
 821 }