src/technology.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2012  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <string.h>
  28
  29 #include <gdbus.h>
  30
  31 #include "connman.h"
  32
  33 static DBusConnection *connection;
  34
  35 static GSList *technology_list = NULL;
  36
  37 /*
  38  * List of devices with no technology associated with them either because of
  39  * no compiled in support or the driver is not yet loaded.
  40 */
  41 static GSList *techless_device_list = NULL;
  42 static GHashTable *rfkill_list;
  43
  44 static connman_bool_t global_offlinemode;
  45
  46 struct connman_rfkill {
  47         unsigned int index;
  48         enum connman_service_type type;
  49         connman_bool_t softblock;
  50         connman_bool_t hardblock;
  51 };
  52
  53 struct connman_technology {
  54         int refcount;
  55         enum connman_service_type type;
  56         char *path;
  57         GSList *device_list;
  58         connman_bool_t enabled;
  59         char *regdom;
  60         connman_bool_t connected;
  61
  62         connman_bool_t tethering;
  63         char *tethering_ident;
  64         char *tethering_passphrase;
  65
  66         connman_bool_t enable_persistent; /* Save the tech state */
  67
  68         struct connman_technology_driver *driver;
  69         void *driver_data;
  70
  71         DBusMessage *pending_reply;
  72         guint pending_timeout;
  73
  74         GSList *scan_pending;
  75
  76         connman_bool_t rfkill_driven;
  77         connman_bool_t softblocked;
  78         connman_bool_t hardblocked;
  79         connman_bool_t dbus_registered;
  80 };
  81
  82 static GSList *driver_list = NULL;
  83
  84 static gint compare_priority(gconstpointer a, gconstpointer b)
  85 {
  86         const struct connman_technology_driver *driver1 = a;
  87         const struct connman_technology_driver *driver2 = b;
  88
  89         return driver2->priority - driver1->priority;
  90 }
  91
  92 static void rfkill_check(gpointer key, gpointer value, gpointer user_data)
  93 {
  94         struct connman_rfkill *rfkill = value;
  95         enum connman_service_type type = GPOINTER_TO_INT(user_data);
  96
  97         /* Calling _technology_rfkill_add will update the tech. */
  98         if (rfkill->type == type)
  99                 __connman_technology_add_rfkill(rfkill->index, type,
 100                                 rfkill->softblock, rfkill->hardblock);
 101 }
 102
 103 /**
 104  * connman_technology_driver_register:
 105  * @driver: Technology driver definition
 106  *
 107  * Register a new technology driver
 108  *
 109  * Returns: %0 on success
 110  */
 111 int connman_technology_driver_register(struct connman_technology_driver *driver)
 112 {
 113         GSList *list;
 114         struct connman_device *device;
 115         enum connman_service_type type;
 116
 117         DBG("Registering %s driver", driver->name);
 118
 119         driver_list = g_slist_insert_sorted(driver_list, driver,
 120                                                         compare_priority);
 121
 122         if (techless_device_list == NULL)
 123                 goto check_rfkill;
 124
 125         /*
 126          * Check for technology less devices if this driver
 127          * can service any of them.
 128         */
 129         for (list = techless_device_list; list; list = list->next) {
 130                 device = list->data;
 131
 132                 type = __connman_device_get_service_type(device);
 133                 if (type != driver->type)
 134                         continue;
 135
 136                 techless_device_list = g_slist_remove(techless_device_list,
 137                                                                 device);
 138
 139                 __connman_technology_add_device(device);
 140         }
 141
 142 check_rfkill:
 143         /* Check for orphaned rfkill switches. */
 144         g_hash_table_foreach(rfkill_list, rfkill_check,
 145                                         GINT_TO_POINTER(driver->type));
 146
 147         return 0;
 148 }
 149
 150 /**
 151  * connman_technology_driver_unregister:
 152  * @driver: Technology driver definition
 153  *
 154  * Remove a previously registered technology driver
 155  */
 156 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 157 {
 158         GSList *list;
 159         struct connman_technology *technology;
 160
 161         DBG("Unregistering driver %p name %s", driver, driver->name);
 162
 163         for (list = technology_list; list; list = list->next) {
 164                 technology = list->data;
 165
 166                 if (technology->driver == NULL)
 167                         continue;
 168
 169                 if (technology->type == driver->type) {
 170                         technology->driver->remove(technology);
 171                         technology->driver = NULL;
 172                 }
 173         }
 174
 175         driver_list = g_slist_remove(driver_list, driver);
 176 }
 177
 178 static void tethering_changed(struct connman_technology *technology)
 179 {
 180         connman_bool_t tethering = technology->tethering;
 181
 182         connman_dbus_property_changed_basic(technology->path,
 183                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 184                                                 DBUS_TYPE_BOOLEAN, &tethering);
 185 }
 186
 187 void connman_technology_tethering_notify(struct connman_technology *technology,
 188                                                         connman_bool_t enabled)
 189 {
 190         GSList *list;
 191
 192         DBG("technology %p enabled %u", technology, enabled);
 193
 194         if (technology->tethering == enabled)
 195                 return;
 196
 197         technology->tethering = enabled;
 198
 199         tethering_changed(technology);
 200
 201         if (enabled == TRUE)
 202                 __connman_tethering_set_enabled();
 203         else {
 204                 for (list = technology_list; list; list = list->next) {
 205                         struct connman_technology *other_tech = list->data;
 206                         if (other_tech->tethering == TRUE)
 207                                 break;
 208                 }
 209                 if (list == NULL)
 210                         __connman_tethering_set_disabled();
 211         }
 212 }
 213
 214 static int set_tethering(struct connman_technology *technology,
 215                                 connman_bool_t enabled)
 216 {
 217         const char *ident, *passphrase, *bridge;
 218
 219         ident = technology->tethering_ident;
 220         passphrase = technology->tethering_passphrase;
 221
 222         if (technology->driver == NULL ||
 223                         technology->driver->set_tethering == NULL)
 224                 return -EOPNOTSUPP;
 225
 226         bridge = __connman_tethering_get_bridge();
 227         if (bridge == NULL)
 228                 return -EOPNOTSUPP;
 229
 230         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI &&
 231             (ident == NULL || passphrase == NULL))
 232                 return -EINVAL;
 233
 234         return technology->driver->set_tethering(technology, ident, passphrase,
 235                                                         bridge, enabled);
 236 }
 237
 238 void connman_technology_regdom_notify(struct connman_technology *technology,
 239                                                         const char *alpha2)
 240 {
 241         DBG("");
 242
 243         if (alpha2 == NULL)
 244                 connman_error("Failed to set regulatory domain");
 245         else
 246                 DBG("Regulatory domain set to %s", alpha2);
 247
 248         g_free(technology->regdom);
 249         technology->regdom = g_strdup(alpha2);
 250 }
 251
 252 static int set_regdom_by_device(struct connman_technology *technology,
 253                                                         const char *alpha2)
 254 {
 255         GSList *list;
 256
 257         for (list = technology->device_list; list; list = list->next) {
 258                 struct connman_device *device = list->data;
 259
 260                 if (connman_device_set_regdom(device, alpha2) != 0)
 261                         return -ENOTSUP;
 262         }
 263
 264         return 0;
 265 }
 266
 267 int connman_technology_set_regdom(const char *alpha2)
 268 {
 269         GSList *list;
 270
 271         for (list = technology_list; list; list = list->next) {
 272                 struct connman_technology *technology = list->data;
 273
 274                 if (set_regdom_by_device(technology, alpha2) != 0) {
 275                         if (technology->driver == NULL)
 276                                 continue;
 277
 278                         if (technology->driver->set_regdom != NULL)
 279                                 technology->driver->set_regdom(technology,
 280                                                                 alpha2);
 281                 }
 282         }
 283
 284         return 0;
 285 }
 286
 287 static void free_rfkill(gpointer data)
 288 {
 289         struct connman_rfkill *rfkill = data;
 290
 291         g_free(rfkill);
 292 }
 293
 294 static const char *get_name(enum connman_service_type type)
 295 {
 296         switch (type) {
 297         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 298         case CONNMAN_SERVICE_TYPE_SYSTEM:
 299         case CONNMAN_SERVICE_TYPE_GPS:
 300         case CONNMAN_SERVICE_TYPE_VPN:
 301         case CONNMAN_SERVICE_TYPE_GADGET:
 302                 break;
 303         case CONNMAN_SERVICE_TYPE_ETHERNET:
 304                 return "Wired";
 305         case CONNMAN_SERVICE_TYPE_WIFI:
 306                 return "WiFi";
 307         case CONNMAN_SERVICE_TYPE_WIMAX:
 308                 return "WiMAX";
 309         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 310                 return "Bluetooth";
 311         case CONNMAN_SERVICE_TYPE_CELLULAR:
 312                 return "Cellular";
 313         }
 314
 315         return NULL;
 316 }
 317
 318 static void technology_save(struct connman_technology *technology)
 319 {
 320         GKeyFile *keyfile;
 321         gchar *identifier;
 322
 323         DBG("technology %p", technology);
 324
 325         keyfile = __connman_storage_load_global();
 326         if (keyfile == NULL)
 327                 keyfile = g_key_file_new();
 328
 329         identifier = g_strdup_printf("%s", get_name(technology->type));
 330         if (identifier == NULL)
 331                 goto done;
 332
 333         g_key_file_set_boolean(keyfile, identifier, "Enable",
 334                                 technology->enable_persistent);
 335
 336         if (technology->tethering_ident != NULL)
 337                 g_key_file_set_string(keyfile, identifier,
 338                                         "Tethering.Identifier",
 339                                         technology->tethering_ident);
 340
 341         if (technology->tethering_passphrase != NULL)
 342                 g_key_file_set_string(keyfile, identifier,
 343                                         "Tethering.Passphrase",
 344                                         technology->tethering_passphrase);
 345
 346 done:
 347         g_free(identifier);
 348
 349         __connman_storage_save_global(keyfile);
 350
 351         g_key_file_free(keyfile);
 352
 353         return;
 354 }
 355
 356 static void technology_load(struct connman_technology *technology)
 357 {
 358         GKeyFile *keyfile;
 359         gchar *identifier;
 360         GError *error = NULL;
 361         connman_bool_t enable;
 362
 363         DBG("technology %p", technology);
 364
 365         keyfile = __connman_storage_load_global();
 366         /* Fallback on disabling technology if file not found. */
 367         if (keyfile == NULL) {
 368                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 369                         /* We enable ethernet by default */
 370                         technology->enable_persistent = TRUE;
 371                 else
 372                         technology->enable_persistent = FALSE;
 373                 return;
 374         }
 375
 376         identifier = g_strdup_printf("%s", get_name(technology->type));
 377         if (identifier == NULL)
 378                 goto done;
 379
 380         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 381         if (error == NULL)
 382                 technology->enable_persistent = enable;
 383         else {
 384                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 385                         technology->enable_persistent = TRUE;
 386                 else
 387                         technology->enable_persistent = FALSE;
 388
 389                 technology_save(technology);
 390                 g_clear_error(&error);
 391         }
 392
 393         technology->tethering_ident = g_key_file_get_string(keyfile,
 394                                 identifier, "Tethering.Identifier", NULL);
 395
 396         technology->tethering_passphrase = g_key_file_get_string(keyfile,
 397                                 identifier, "Tethering.Passphrase", NULL);
 398 done:
 399         g_free(identifier);
 400
 401         g_key_file_free(keyfile);
 402
 403         return;
 404 }
 405
 406 connman_bool_t __connman_technology_get_offlinemode(void)
 407 {
 408         return global_offlinemode;
 409 }
 410
 411 static void connman_technology_save_offlinemode()
 412 {
 413         GKeyFile *keyfile;
 414
 415         keyfile = __connman_storage_load_global();
 416         if (keyfile == NULL)
 417                 keyfile = g_key_file_new();
 418
 419         g_key_file_set_boolean(keyfile, "global",
 420                                         "OfflineMode", global_offlinemode);
 421
 422         __connman_storage_save_global(keyfile);
 423
 424         g_key_file_free(keyfile);
 425
 426         return;
 427 }
 428
 429 static connman_bool_t connman_technology_load_offlinemode()
 430 {
 431         GKeyFile *keyfile;
 432         GError *error = NULL;
 433         connman_bool_t offlinemode;
 434
 435         /* If there is a error, we enable offlinemode */
 436         keyfile = __connman_storage_load_global();
 437         if (keyfile == NULL)
 438                 return FALSE;
 439
 440         offlinemode = g_key_file_get_boolean(keyfile, "global",
 441                                                 "OfflineMode", &error);
 442         if (error != NULL) {
 443                 offlinemode = FALSE;
 444                 g_clear_error(&error);
 445         }
 446
 447         g_key_file_free(keyfile);
 448
 449         return offlinemode;
 450 }
 451
 452 static void append_properties(DBusMessageIter *iter,
 453                 struct connman_technology *technology)
 454 {
 455         DBusMessageIter dict;
 456         const char *str;
 457
 458         connman_dbus_dict_open(iter, &dict);
 459
 460         str = get_name(technology->type);
 461         if (str != NULL)
 462                 connman_dbus_dict_append_basic(&dict, "Name",
 463                                                 DBUS_TYPE_STRING, &str);
 464
 465         str = __connman_service_type2string(technology->type);
 466         if (str != NULL)
 467                 connman_dbus_dict_append_basic(&dict, "Type",
 468                                                 DBUS_TYPE_STRING, &str);
 469
 470         __sync_synchronize();
 471         connman_dbus_dict_append_basic(&dict, "Powered",
 472                                         DBUS_TYPE_BOOLEAN,
 473                                         &technology->enabled);
 474
 475         connman_dbus_dict_append_basic(&dict, "Connected",
 476                                         DBUS_TYPE_BOOLEAN,
 477                                         &technology->connected);
 478
 479         connman_dbus_dict_append_basic(&dict, "Tethering",
 480                                         DBUS_TYPE_BOOLEAN,
 481                                         &technology->tethering);
 482
 483         if (technology->tethering_ident != NULL)
 484                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 485                                         DBUS_TYPE_STRING,
 486                                         &technology->tethering_ident);
 487
 488         if (technology->tethering_passphrase != NULL)
 489                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 490                                         DBUS_TYPE_STRING,
 491                                         &technology->tethering_passphrase);
 492
 493         connman_dbus_dict_close(iter, &dict);
 494 }
 495
 496 static void technology_added_signal(struct connman_technology *technology)
 497 {
 498         DBusMessage *signal;
 499         DBusMessageIter iter;
 500
 501         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 502                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 503         if (signal == NULL)
 504                 return;
 505
 506         dbus_message_iter_init_append(signal, &iter);
 507         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 508                                                         &technology->path);
 509         append_properties(&iter, technology);
 510
 511         dbus_connection_send(connection, signal, NULL);
 512         dbus_message_unref(signal);
 513 }
 514
 515 static void technology_removed_signal(struct connman_technology *technology)
 516 {
 517         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 518                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 519                         DBUS_TYPE_OBJECT_PATH, &technology->path,
 520                         DBUS_TYPE_INVALID);
 521 }
 522
 523 static DBusMessage *get_properties(DBusConnection *conn,
 524                                         DBusMessage *message, void *user_data)
 525 {
 526         struct connman_technology *technology = user_data;
 527         DBusMessage *reply;
 528         DBusMessageIter iter;
 529
 530         reply = dbus_message_new_method_return(message);
 531         if (reply == NULL)
 532                 return NULL;
 533
 534         dbus_message_iter_init_append(reply, &iter);
 535         append_properties(&iter, technology);
 536
 537         return reply;
 538 }
 539
 540 void __connman_technology_list_struct(DBusMessageIter *array)
 541 {
 542         GSList *list;
 543         DBusMessageIter entry;
 544
 545         for (list = technology_list; list; list = list->next) {
 546                 struct connman_technology *technology = list->data;
 547
 548                 if (technology->path == NULL ||
 549                                 (technology->rfkill_driven == TRUE &&
 550                                  technology->hardblocked == TRUE))
 551                         continue;
 552
 553                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 554                                 NULL, &entry);
 555                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 556                                 &technology->path);
 557                 append_properties(&entry, technology);
 558                 dbus_message_iter_close_container(array, &entry);
 559         }
 560 }
 561
 562 static gboolean technology_pending_reply(gpointer user_data)
 563 {
 564         struct connman_technology *technology = user_data;
 565         DBusMessage *reply;
 566
 567         /* Power request timedout, send ETIMEDOUT. */
 568         if (technology->pending_reply != NULL) {
 569                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 570                 if (reply != NULL)
 571                         g_dbus_send_message(connection, reply);
 572
 573                 dbus_message_unref(technology->pending_reply);
 574                 technology->pending_reply = NULL;
 575                 technology->pending_timeout = 0;
 576         }
 577
 578         return FALSE;
 579 }
 580
 581 static int technology_affect_devices(struct connman_technology *technology,
 582                                                 connman_bool_t enable_device)
 583 {
 584         GSList *list;
 585         int err = 0;
 586
 587         for (list = technology->device_list; list; list = list->next) {
 588                 struct connman_device *device = list->data;
 589
 590                 if (enable_device == TRUE)
 591                         err = __connman_device_enable(device);
 592                 else
 593                         err = __connman_device_disable(device);
 594         }
 595
 596         return err;
 597 }
 598
 599 static int technology_enable(struct connman_technology *technology)
 600 {
 601         DBG("technology %p enable", technology);
 602
 603         __sync_synchronize();
 604         if (technology->enabled == TRUE)
 605                 return -EALREADY;
 606
 607         if (technology->pending_reply != NULL)
 608                 return -EBUSY;
 609
 610         if (technology->rfkill_driven == TRUE)
 611                 return __connman_rfkill_block(technology->type, FALSE);
 612
 613         return technology_affect_devices(technology, TRUE);
 614 }
 615
 616 static int technology_disable(struct connman_technology *technology)
 617 {
 618         DBG("technology %p disable", technology);
 619
 620         __sync_synchronize();
 621         if (technology->enabled == FALSE)
 622                 return -EALREADY;
 623
 624         if (technology->pending_reply != NULL)
 625                 return -EBUSY;
 626
 627         if (technology->tethering == TRUE)
 628                 set_tethering(technology, FALSE);
 629
 630         if (technology->rfkill_driven == TRUE)
 631                 return __connman_rfkill_block(technology->type, TRUE);
 632
 633         return technology_affect_devices(technology, FALSE);
 634 }
 635
 636 static DBusMessage *set_powered(struct connman_technology *technology,
 637                                 DBusMessage *msg, connman_bool_t powered)
 638 {
 639         DBusMessage *reply = NULL;
 640         int err = 0;
 641
 642         if (technology->rfkill_driven && technology->hardblocked == TRUE) {
 643                 err = -EACCES;
 644                 goto make_reply;
 645         }
 646
 647         if (powered == TRUE)
 648                 err = technology_enable(technology);
 649         else
 650                 err = technology_disable(technology);
 651
 652         if (err != -EBUSY) {
 653                 technology->enable_persistent = powered;
 654                 technology_save(technology);
 655         }
 656
 657 make_reply:
 658         if (err == -EINPROGRESS) {
 659                 technology->pending_reply = dbus_message_ref(msg);
 660                 technology->pending_timeout = g_timeout_add_seconds(10,
 661                                         technology_pending_reply, technology);
 662         } else if (err == -EALREADY) {
 663                 if (powered == TRUE)
 664                         reply = __connman_error_already_enabled(msg);
 665                 else
 666                         reply = __connman_error_already_disabled(msg);
 667         } else if (err < 0)
 668                 reply = __connman_error_failed(msg, -err);
 669         else
 670                 reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 671
 672         return reply;
 673 }
 674
 675 static DBusMessage *set_property(DBusConnection *conn,
 676                                         DBusMessage *msg, void *data)
 677 {
 678         struct connman_technology *technology = data;
 679         DBusMessageIter iter, value;
 680         const char *name;
 681         int type;
 682
 683         DBG("conn %p", conn);
 684
 685         if (dbus_message_iter_init(msg, &iter) == FALSE)
 686                 return __connman_error_invalid_arguments(msg);
 687
 688         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 689                 return __connman_error_invalid_arguments(msg);
 690
 691         dbus_message_iter_get_basic(&iter, &name);
 692         dbus_message_iter_next(&iter);
 693
 694         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 695                 return __connman_error_invalid_arguments(msg);
 696
 697         dbus_message_iter_recurse(&iter, &value);
 698
 699         type = dbus_message_iter_get_arg_type(&value);
 700
 701         DBG("property %s", name);
 702
 703         if (g_str_equal(name, "Tethering") == TRUE) {
 704                 int err;
 705                 connman_bool_t tethering;
 706
 707                 if (type != DBUS_TYPE_BOOLEAN)
 708                         return __connman_error_invalid_arguments(msg);
 709
 710                 dbus_message_iter_get_basic(&value, &tethering);
 711
 712                 if (technology->tethering == tethering) {
 713                         if (tethering == FALSE)
 714                                 return __connman_error_already_disabled(msg);
 715                         else
 716                                 return __connman_error_already_enabled(msg);
 717                 }
 718
 719                 err = set_tethering(technology, tethering);
 720                 if (err < 0)
 721                         return __connman_error_failed(msg, -err);
 722
 723         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 724                 const char *str;
 725
 726                 dbus_message_iter_get_basic(&value, &str);
 727
 728                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 729                         return __connman_error_not_supported(msg);
 730
 731                 if (strlen(str) < 1 || strlen(str) > 32)
 732                         return __connman_error_invalid_arguments(msg);
 733
 734                 if (g_strcmp0(technology->tethering_ident, str) != 0) {
 735                         g_free(technology->tethering_ident);
 736                         technology->tethering_ident = g_strdup(str);
 737                         technology_save(technology);
 738
 739                         connman_dbus_property_changed_basic(technology->path,
 740                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 741                                                 "TetheringIdentifier",
 742                                                 DBUS_TYPE_STRING,
 743                                                 &technology->tethering_ident);
 744                 }
 745         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 746                 const char *str;
 747
 748                 dbus_message_iter_get_basic(&value, &str);
 749
 750                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 751                         return __connman_error_not_supported(msg);
 752
 753                 if (strlen(str) < 8 || strlen(str) > 63)
 754                         return __connman_error_passphrase_required(msg);
 755
 756                 if (g_strcmp0(technology->tethering_passphrase, str) != 0) {
 757                         g_free(technology->tethering_passphrase);
 758                         technology->tethering_passphrase = g_strdup(str);
 759                         technology_save(technology);
 760
 761                         connman_dbus_property_changed_basic(technology->path,
 762                                         CONNMAN_TECHNOLOGY_INTERFACE,
 763                                         "TetheringPassphrase",
 764                                         DBUS_TYPE_STRING,
 765                                         &technology->tethering_passphrase);
 766                 }
 767         } else if (g_str_equal(name, "Powered") == TRUE) {
 768                 connman_bool_t enable;
 769
 770                 if (type != DBUS_TYPE_BOOLEAN)
 771                         return __connman_error_invalid_arguments(msg);
 772
 773                 dbus_message_iter_get_basic(&value, &enable);
 774
 775                 return set_powered(technology, msg, enable);
 776         } else
 777                 return __connman_error_invalid_property(msg);
 778
 779         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 780 }
 781
 782 static struct connman_technology *technology_find(enum connman_service_type type)
 783 {
 784         GSList *list;
 785
 786         DBG("type %d", type);
 787
 788         for (list = technology_list; list; list = list->next) {
 789                 struct connman_technology *technology = list->data;
 790
 791                 if (technology->type == type)
 792                         return technology;
 793         }
 794
 795         return NULL;
 796 }
 797
 798 static void reply_scan_pending(struct connman_technology *technology, int err)
 799 {
 800         DBusMessage *reply;
 801
 802         DBG("technology %p err %d", technology, err);
 803
 804         while (technology->scan_pending != NULL) {
 805                 DBusMessage *msg = technology->scan_pending->data;
 806
 807                 DBG("reply to %s", dbus_message_get_sender(msg));
 808
 809                 if (err == 0)
 810                         reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 811                 else
 812                         reply = __connman_error_failed(msg, -err);
 813                 g_dbus_send_message(connection, reply);
 814                 dbus_message_unref(msg);
 815
 816                 technology->scan_pending =
 817                         g_slist_delete_link(technology->scan_pending,
 818                                         technology->scan_pending);
 819         }
 820 }
 821
 822 void __connman_technology_scan_started(struct connman_device *device)
 823 {
 824         DBG("device %p", device);
 825 }
 826
 827 void __connman_technology_scan_stopped(struct connman_device *device)
 828 {
 829         int count = 0;
 830         struct connman_technology *technology;
 831         enum connman_service_type type;
 832         GSList *list;
 833
 834         type = __connman_device_get_service_type(device);
 835         technology = technology_find(type);
 836
 837         DBG("technology %p device %p", technology, device);
 838
 839         if (technology == NULL)
 840                 return;
 841
 842         for (list = technology->device_list; list != NULL; list = list->next) {
 843                 struct connman_device *other_device = list->data;
 844
 845                 if (device == other_device)
 846                         continue;
 847
 848                 if (__connman_device_get_service_type(other_device) != type)
 849                         continue;
 850
 851                 if (connman_device_get_scanning(other_device) == TRUE)
 852                         count += 1;
 853         }
 854
 855         if (count == 0)
 856                 reply_scan_pending(technology, 0);
 857 }
 858
 859 void __connman_technology_notify_regdom_by_device(struct connman_device *device,
 860                                                 int result, const char *alpha2)
 861 {
 862         struct connman_technology *technology;
 863         enum connman_service_type type;
 864
 865         type = __connman_device_get_service_type(device);
 866         technology = technology_find(type);
 867
 868         if (technology == NULL)
 869                 return;
 870
 871         if (result < 0) {
 872                 if (technology->driver != NULL &&
 873                                 technology->driver->set_regdom != NULL) {
 874                         technology->driver->set_regdom(technology, alpha2);
 875                         return;
 876                 }
 877
 878                 alpha2 = NULL;
 879         }
 880
 881         connman_technology_regdom_notify(technology, alpha2);
 882 }
 883
 884 static DBusMessage *scan(DBusConnection *conn, DBusMessage *msg, void *data)
 885 {
 886         struct connman_technology *technology = data;
 887         int err;
 888
 889         DBG ("technology %p request from %s", technology,
 890                         dbus_message_get_sender(msg));
 891
 892         dbus_message_ref(msg);
 893         technology->scan_pending =
 894                 g_slist_prepend(technology->scan_pending, msg);
 895
 896         err = __connman_device_request_scan(technology->type);
 897         if (err < 0)
 898                 reply_scan_pending(technology, err);
 899
 900         return NULL;
 901 }
 902
 903 static const GDBusMethodTable technology_methods[] = {
 904         { GDBUS_DEPRECATED_METHOD("GetProperties",
 905                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
 906                         get_properties) },
 907         { GDBUS_ASYNC_METHOD("SetProperty",
 908                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
 909                         NULL, set_property) },
 910         { GDBUS_ASYNC_METHOD("Scan", NULL, NULL, scan) },
 911         { },
 912 };
 913
 914 static const GDBusSignalTable technology_signals[] = {
 915         { GDBUS_SIGNAL("PropertyChanged",
 916                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
 917         { },
 918 };
 919
 920 static gboolean technology_dbus_register(struct connman_technology *technology)
 921 {
 922         if (technology->dbus_registered == TRUE ||
 923                                 (technology->rfkill_driven &&
 924                                  technology->hardblocked == TRUE))
 925                 return TRUE;
 926
 927         if (g_dbus_register_interface(connection, technology->path,
 928                                 CONNMAN_TECHNOLOGY_INTERFACE,
 929                                 technology_methods, technology_signals,
 930                                 NULL, technology, NULL) == FALSE) {
 931                 connman_error("Failed to register %s", technology->path);
 932                 return FALSE;
 933         }
 934
 935         technology_added_signal(technology);
 936         technology->dbus_registered = TRUE;
 937
 938         return TRUE;
 939 }
 940
 941 static struct connman_technology *technology_get(enum connman_service_type type)
 942 {
 943         struct connman_technology *technology;
 944         struct connman_technology_driver *driver = NULL;
 945         const char *str;
 946         GSList *list;
 947         int err;
 948
 949         DBG("type %d", type);
 950
 951         str = __connman_service_type2string(type);
 952         if (str == NULL)
 953                 return NULL;
 954
 955         technology = technology_find(type);
 956         if (technology != NULL) {
 957                 __sync_fetch_and_add(&technology->refcount, 1);
 958                 return technology;
 959         }
 960
 961         /* First check if we have a driver for this technology type */
 962         for (list = driver_list; list; list = list->next) {
 963                 driver = list->data;
 964
 965                 if (driver->type == type)
 966                         break;
 967                 else
 968                         driver = NULL;
 969         }
 970
 971         if (driver == NULL) {
 972                 DBG("No matching driver found for %s.",
 973                                 __connman_service_type2string(type));
 974                 return NULL;
 975         }
 976
 977         technology = g_try_new0(struct connman_technology, 1);
 978         if (technology == NULL)
 979                 return NULL;
 980
 981         technology->refcount = 1;
 982
 983         technology->rfkill_driven = FALSE;
 984         technology->softblocked = FALSE;
 985
 986         if (type == CONNMAN_SERVICE_TYPE_ETHERNET)
 987                 technology->hardblocked = FALSE;
 988         else
 989                 technology->hardblocked = TRUE;
 990
 991         technology->type = type;
 992         technology->path = g_strdup_printf("%s/technology/%s",
 993                                                         CONNMAN_PATH, str);
 994
 995         technology->device_list = NULL;
 996
 997         technology->pending_reply = NULL;
 998
 999         technology_load(technology);
1000
1001         if (technology_dbus_register(technology) == FALSE) {
1002                 g_free(technology);
1003                 return NULL;
1004         }
1005
1006         technology_list = g_slist_prepend(technology_list, technology);
1007
1008         technology->driver = driver;
1009         err = driver->probe(technology);
1010         if (err != 0)
1011                 DBG("Driver probe failed for technology %p", technology);
1012
1013         DBG("technology %p", technology);
1014
1015         return technology;
1016 }
1017
1018 static void technology_dbus_unregister(struct connman_technology *technology)
1019 {
1020         if (technology->dbus_registered == FALSE)
1021                 return;
1022
1023         technology_removed_signal(technology);
1024         g_dbus_unregister_interface(connection, technology->path,
1025                 CONNMAN_TECHNOLOGY_INTERFACE);
1026
1027         technology->dbus_registered = FALSE;
1028 }
1029
1030 static void technology_put(struct connman_technology *technology)
1031 {
1032         DBG("technology %p", technology);
1033
1034         if (__sync_sub_and_fetch(&technology->refcount, 1) > 0)
1035                 return;
1036
1037         reply_scan_pending(technology, -EINTR);
1038
1039         if (technology->driver) {
1040                 technology->driver->remove(technology);
1041                 technology->driver = NULL;
1042         }
1043
1044         technology_list = g_slist_remove(technology_list, technology);
1045
1046         technology_dbus_unregister(technology);
1047
1048         g_slist_free(technology->device_list);
1049
1050         g_free(technology->path);
1051         g_free(technology->regdom);
1052         g_free(technology->tethering_ident);
1053         g_free(technology->tethering_passphrase);
1054         g_free(technology);
1055 }
1056
1057 void __connman_technology_add_interface(enum connman_service_type type,
1058                                 int index, const char *name, const char *ident)
1059 {
1060         struct connman_technology *technology;
1061
1062         switch (type) {
1063         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1064         case CONNMAN_SERVICE_TYPE_SYSTEM:
1065                 return;
1066         case CONNMAN_SERVICE_TYPE_ETHERNET:
1067         case CONNMAN_SERVICE_TYPE_WIFI:
1068         case CONNMAN_SERVICE_TYPE_WIMAX:
1069         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1070         case CONNMAN_SERVICE_TYPE_CELLULAR:
1071         case CONNMAN_SERVICE_TYPE_GPS:
1072         case CONNMAN_SERVICE_TYPE_VPN:
1073         case CONNMAN_SERVICE_TYPE_GADGET:
1074                 break;
1075         }
1076
1077         connman_info("Adding interface %s [ %s ]", name,
1078                                 __connman_service_type2string(type));
1079
1080         technology = technology_find(type);
1081
1082         if (technology == NULL || technology->driver == NULL
1083                         || technology->driver->add_interface == NULL)
1084                 return;
1085
1086         technology->driver->add_interface(technology,
1087                                         index, name, ident);
1088 }
1089
1090 void __connman_technology_remove_interface(enum connman_service_type type,
1091                                 int index, const char *name, const char *ident)
1092 {
1093         struct connman_technology *technology;
1094
1095         switch (type) {
1096         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1097         case CONNMAN_SERVICE_TYPE_SYSTEM:
1098                 return;
1099         case CONNMAN_SERVICE_TYPE_ETHERNET:
1100         case CONNMAN_SERVICE_TYPE_WIFI:
1101         case CONNMAN_SERVICE_TYPE_WIMAX:
1102         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1103         case CONNMAN_SERVICE_TYPE_CELLULAR:
1104         case CONNMAN_SERVICE_TYPE_GPS:
1105         case CONNMAN_SERVICE_TYPE_VPN:
1106         case CONNMAN_SERVICE_TYPE_GADGET:
1107                 break;
1108         }
1109
1110         connman_info("Remove interface %s [ %s ]", name,
1111                                 __connman_service_type2string(type));
1112
1113         technology = technology_find(type);
1114
1115         if (technology == NULL || technology->driver == NULL)
1116                 return;
1117
1118         if (technology->driver->remove_interface)
1119                 technology->driver->remove_interface(technology, index);
1120 }
1121
1122 int __connman_technology_add_device(struct connman_device *device)
1123 {
1124         struct connman_technology *technology;
1125         enum connman_service_type type;
1126
1127         DBG("device %p", device);
1128
1129         type = __connman_device_get_service_type(device);
1130
1131         technology = technology_get(type);
1132         if (technology == NULL) {
1133                 /*
1134                  * Since no driver can be found for this device at the moment we
1135                  * add it to the techless device list.
1136                 */
1137                 techless_device_list = g_slist_prepend(techless_device_list,
1138                                                                 device);
1139
1140                 return -ENXIO;
1141         }
1142
1143         __sync_synchronize();
1144         if (technology->rfkill_driven == TRUE) {
1145                 if (technology->enabled == TRUE)
1146                         __connman_device_enable(device);
1147                 else
1148                         __connman_device_disable(device);
1149
1150                 goto done;
1151         }
1152
1153         if (technology->enable_persistent == TRUE &&
1154                                         global_offlinemode == FALSE) {
1155                 int err = __connman_device_enable(device);
1156                 /*
1157                  * connman_technology_add_device() calls __connman_device_enable()
1158                  * but since the device is already enabled, the calls does not
1159                  * propagate through to connman_technology_enabled via
1160                  * connman_device_set_powered.
1161                  */
1162                 if (err == -EALREADY)
1163                         __connman_technology_enabled(type);
1164         }
1165         /* if technology persistent state is offline */
1166         if (technology->enable_persistent == FALSE)
1167                 __connman_device_disable(device);
1168
1169 done:
1170         technology->device_list = g_slist_prepend(technology->device_list,
1171                                                                 device);
1172
1173         return 0;
1174 }
1175
1176 int __connman_technology_remove_device(struct connman_device *device)
1177 {
1178         struct connman_technology *technology;
1179         enum connman_service_type type;
1180
1181         DBG("device %p", device);
1182
1183         type = __connman_device_get_service_type(device);
1184
1185         technology = technology_find(type);
1186         if (technology == NULL) {
1187                 techless_device_list = g_slist_remove(techless_device_list,
1188                                                                 device);
1189                 return -ENXIO;
1190         }
1191
1192         technology->device_list = g_slist_remove(technology->device_list,
1193                                                                 device);
1194         technology_put(technology);
1195
1196         return 0;
1197 }
1198
1199 static void powered_changed(struct connman_technology *technology)
1200 {
1201         if (technology->dbus_registered == FALSE)
1202                 return;
1203
1204         if (technology->pending_reply != NULL) {
1205                 g_dbus_send_reply(connection,
1206                                 technology->pending_reply, DBUS_TYPE_INVALID);
1207                 dbus_message_unref(technology->pending_reply);
1208                 technology->pending_reply = NULL;
1209
1210                 g_source_remove(technology->pending_timeout);
1211                 technology->pending_timeout = 0;
1212         }
1213
1214         __sync_synchronize();
1215         connman_dbus_property_changed_basic(technology->path,
1216                         CONNMAN_TECHNOLOGY_INTERFACE, "Powered",
1217                         DBUS_TYPE_BOOLEAN, &technology->enabled);
1218 }
1219
1220 static int technology_enabled(struct connman_technology *technology)
1221 {
1222         __sync_synchronize();
1223         if (technology->enabled == TRUE)
1224                 return -EALREADY;
1225
1226         technology->enabled = TRUE;
1227
1228         powered_changed(technology);
1229
1230         return 0;
1231 }
1232
1233 int __connman_technology_enabled(enum connman_service_type type)
1234 {
1235         struct connman_technology *technology;
1236
1237         technology = technology_find(type);
1238         if (technology == NULL)
1239                 return -ENXIO;
1240
1241         if (technology->rfkill_driven == TRUE)
1242                 return 0;
1243
1244         return technology_enabled(technology);
1245 }
1246
1247 static int technology_disabled(struct connman_technology *technology)
1248 {
1249         __sync_synchronize();
1250         if (technology->enabled == FALSE)
1251                 return -EALREADY;
1252
1253         technology->enabled = FALSE;
1254
1255         powered_changed(technology);
1256
1257         return 0;
1258 }
1259
1260 int __connman_technology_disabled(enum connman_service_type type)
1261 {
1262         struct connman_technology *technology;
1263         GSList *list;
1264
1265         technology = technology_find(type);
1266         if (technology == NULL)
1267                 return -ENXIO;
1268
1269         if (technology->rfkill_driven == TRUE)
1270                 return 0;
1271
1272         for (list = technology->device_list; list != NULL; list = list->next) {
1273                 struct connman_device *device = list->data;
1274
1275                 if (connman_device_get_powered(device) == TRUE)
1276                         return 0;
1277         }
1278
1279         return technology_disabled(technology);
1280 }
1281
1282 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
1283 {
1284         GSList *list;
1285         int err = -EINVAL;
1286
1287         if (global_offlinemode == offlinemode)
1288                 return 0;
1289
1290         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1291
1292         /*
1293          * This is a bit tricky. When you set offlinemode, there is no
1294          * way to differentiate between attempting offline mode and
1295          * resuming offlinemode from last saved profile. We need that
1296          * information in rfkill_update, otherwise it falls back on the
1297          * technology's persistent state. Hence we set the offline mode here
1298          * but save it & call the notifier only if its successful.
1299          */
1300
1301         global_offlinemode = offlinemode;
1302
1303         /* Traverse technology list, enable/disable each technology. */
1304         for (list = technology_list; list; list = list->next) {
1305                 struct connman_technology *technology = list->data;
1306
1307                 if (offlinemode)
1308                         err = technology_disable(technology);
1309
1310                 if (!offlinemode && technology->enable_persistent)
1311                         err = technology_enable(technology);
1312         }
1313
1314         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1315                 connman_technology_save_offlinemode();
1316                 __connman_notifier_offlinemode(offlinemode);
1317         } else
1318                 global_offlinemode = connman_technology_load_offlinemode();
1319
1320         return err;
1321 }
1322
1323 void __connman_technology_set_connected(enum connman_service_type type,
1324                 connman_bool_t connected)
1325 {
1326         struct connman_technology *technology;
1327
1328         technology = technology_find(type);
1329         if (technology == NULL)
1330                 return;
1331
1332         DBG("technology %p connected %d", technology, connected);
1333
1334         technology->connected = connected;
1335
1336         connman_dbus_property_changed_basic(technology->path,
1337                         CONNMAN_TECHNOLOGY_INTERFACE, "Connected",
1338                         DBUS_TYPE_BOOLEAN, &connected);
1339 }
1340
1341 static connman_bool_t technology_apply_rfkill_change(struct connman_technology *technology,
1342                                                 connman_bool_t softblock,
1343                                                 connman_bool_t hardblock)
1344 {
1345         gboolean hardblock_changed = FALSE;
1346         gboolean apply = TRUE;
1347         GList *start, *list;
1348
1349         if (technology->hardblocked == hardblock)
1350                 goto softblock_change;
1351
1352         start = g_hash_table_get_values(rfkill_list);
1353         for (list = start; list != NULL; list = list->next) {
1354                 struct connman_rfkill *rfkill = list->data;
1355
1356                 if (rfkill->type != technology->type)
1357                         continue;
1358
1359                 if (rfkill->hardblock != hardblock)
1360                         apply = FALSE;
1361         }
1362
1363         g_list_free(start);
1364
1365         if (apply == FALSE)
1366                 goto softblock_change;
1367
1368         technology->hardblocked = hardblock;
1369         hardblock_changed = TRUE;
1370
1371 softblock_change:
1372         if (apply == FALSE && technology->softblocked != softblock)
1373                 apply = TRUE;
1374
1375         if (apply == FALSE)
1376                 return technology->hardblocked;
1377
1378         technology->softblocked = softblock;
1379
1380         if (technology->hardblocked == TRUE ||
1381                                         technology->softblocked == TRUE) {
1382                 if (technology_disabled(technology) != -EALREADY)
1383                         technology_affect_devices(technology, FALSE);
1384         } else if (technology->hardblocked == FALSE &&
1385                                         technology->softblocked == FALSE) {
1386                 if (technology_enabled(technology) != -EALREADY)
1387                         technology_affect_devices(technology, TRUE);
1388         }
1389
1390         if (hardblock_changed == TRUE) {
1391                 if (technology->hardblocked == TRUE) {
1392                         DBG("%s is switched off.", get_name(technology->type));
1393                         technology_dbus_unregister(technology);
1394                 } else
1395                         technology_dbus_register(technology);
1396         }
1397
1398         return technology->hardblocked;
1399 }
1400
1401 int __connman_technology_add_rfkill(unsigned int index,
1402                                         enum connman_service_type type,
1403                                                 connman_bool_t softblock,
1404                                                 connman_bool_t hardblock)
1405 {
1406         struct connman_technology *technology;
1407         struct connman_rfkill *rfkill;
1408
1409         DBG("index %u type %d soft %u hard %u", index, type,
1410                                                         softblock, hardblock);
1411
1412         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1413         if (rfkill != NULL)
1414                 goto done;
1415
1416         rfkill = g_try_new0(struct connman_rfkill, 1);
1417         if (rfkill == NULL)
1418                 return -ENOMEM;
1419
1420         rfkill->index = index;
1421         rfkill->type = type;
1422         rfkill->softblock = softblock;
1423         rfkill->hardblock = hardblock;
1424
1425         g_hash_table_insert(rfkill_list, GINT_TO_POINTER(index), rfkill);
1426
1427 done:
1428         technology = technology_get(type);
1429         /* If there is no driver for this type, ignore it. */
1430         if (technology == NULL)
1431                 return -ENXIO;
1432
1433         technology->rfkill_driven = TRUE;
1434
1435         /* If hardblocked, there is no need to handle softblocked state */
1436         if (technology_apply_rfkill_change(technology,
1437                                         softblock, hardblock) == TRUE)
1438                 return 0;
1439
1440         /*
1441          * Depending on softblocked state we unblock/block according to
1442          * offlinemode and persistente state.
1443          */
1444         if (technology->softblocked == TRUE &&
1445                                 global_offlinemode == FALSE &&
1446                                 technology->enable_persistent == TRUE)
1447                 return __connman_rfkill_block(type, FALSE);
1448         else if (technology->softblocked == FALSE &&
1449                                 global_offlinemode == TRUE &&
1450                                 technology->enable_persistent == FALSE)
1451                 return __connman_rfkill_block(type, TRUE);
1452
1453         return 0;
1454 }
1455
1456 int __connman_technology_update_rfkill(unsigned int index,
1457                                         enum connman_service_type type,
1458                                                 connman_bool_t softblock,
1459                                                 connman_bool_t hardblock)
1460 {
1461         struct connman_technology *technology;
1462         struct connman_rfkill *rfkill;
1463
1464         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1465
1466         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1467         if (rfkill == NULL)
1468                 return -ENXIO;
1469
1470         if (rfkill->softblock == softblock &&
1471                                 rfkill->hardblock == hardblock)
1472                 return 0;
1473
1474         rfkill->softblock = softblock;
1475         rfkill->hardblock = hardblock;
1476
1477         technology = technology_find(type);
1478         /* If there is no driver for this type, ignore it. */
1479         if (technology == NULL)
1480                 return -ENXIO;
1481
1482         /* If hardblocked, there is no need to handle softblocked state */
1483         if (technology_apply_rfkill_change(technology,
1484                                         softblock, hardblock) == TRUE)
1485                 return 0;
1486
1487         if (global_offlinemode == TRUE)
1488                 return 0;
1489
1490         /*
1491          * Depending on softblocked state we unblock/block according to
1492          * persistent state.
1493          */
1494         if (technology->softblocked == TRUE &&
1495                                 technology->enable_persistent == TRUE)
1496                 return __connman_rfkill_block(type, FALSE);
1497         else if (technology->softblocked == FALSE &&
1498                                 technology->enable_persistent == FALSE)
1499                 return __connman_rfkill_block(type, TRUE);
1500
1501         return 0;
1502 }
1503
1504 int __connman_technology_remove_rfkill(unsigned int index,
1505                                         enum connman_service_type type)
1506 {
1507         struct connman_technology *technology;
1508         struct connman_rfkill *rfkill;
1509
1510         DBG("index %u", index);
1511
1512         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1513         if (rfkill == NULL)
1514                 return -ENXIO;
1515
1516         g_hash_table_remove(rfkill_list, GINT_TO_POINTER(index));
1517
1518         technology = technology_find(type);
1519         if (technology == NULL)
1520                 return -ENXIO;
1521
1522         technology_put(technology);
1523
1524         return 0;
1525 }
1526
1527 int __connman_technology_init(void)
1528 {
1529         DBG("");
1530
1531         connection = connman_dbus_get_connection();
1532
1533         rfkill_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1534                                                         NULL, free_rfkill);
1535
1536         global_offlinemode = connman_technology_load_offlinemode();
1537
1538         /* This will create settings file if it is missing */
1539         connman_technology_save_offlinemode();
1540
1541         return 0;
1542 }
1543
1544 void __connman_technology_cleanup(void)
1545 {
1546         DBG("");
1547
1548         g_hash_table_destroy(rfkill_list);
1549
1550         dbus_connection_unref(connection);
1551 }