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