src/technology.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2013  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 bool global_offlinemode;
  45
  46 struct connman_rfkill {
  47         unsigned int index;
  48         enum connman_service_type type;
  49         bool softblock;
  50         bool hardblock;
  51 };
  52
  53 struct connman_technology {
  54         int refcount;
  55         enum connman_service_type type;
  56         char *path;
  57         GSList *device_list;
  58         bool enabled;
  59         char *regdom;
  60         bool connected;
  61
  62         bool tethering;
  63         bool tethering_persistent; /* Tells the save status, needed
  64                                               * as offline mode might set
  65                                               * tethering OFF.
  66                                               */
  67         char *tethering_ident;
  68         char *tethering_passphrase;
  69         bool tethering_hidden;
  70
  71         bool enable_persistent; /* Save the tech state */
  72
  73         GSList *driver_list;
  74
  75         DBusMessage *pending_reply;
  76         guint pending_timeout;
  77
  78         GSList *scan_pending;
  79
  80         bool rfkill_driven;
  81         bool softblocked;
  82         bool hardblocked;
  83         bool dbus_registered;
  84 };
  85
  86 static GSList *driver_list = NULL;
  87
  88 static gint compare_priority(gconstpointer a, gconstpointer b)
  89 {
  90         const struct connman_technology_driver *driver1 = a;
  91         const struct connman_technology_driver *driver2 = b;
  92
  93         return driver2->priority - driver1->priority;
  94 }
  95
  96 static void rfkill_check(gpointer key, gpointer value, gpointer user_data)
  97 {
  98         struct connman_rfkill *rfkill = value;
  99         enum connman_service_type type = GPOINTER_TO_INT(user_data);
 100
 101         /* Calling _technology_rfkill_add will update the tech. */
 102         if (rfkill->type == type)
 103                 __connman_technology_add_rfkill(rfkill->index, type,
 104                                 rfkill->softblock, rfkill->hardblock);
 105 }
 106
 107 bool
 108 connman_technology_is_tethering_allowed(enum connman_service_type type)
 109 {
 110         static char *allowed_default[] = { "wifi", "bluetooth", "gadget",
 111                                            NULL };
 112         const char *type_str = __connman_service_type2string(type);
 113         char **allowed;
 114         int i;
 115
 116         if (!type_str)
 117                 return false;
 118
 119         allowed = connman_setting_get_string_list("TetheringTechnologies");
 120         if (!allowed)
 121                 allowed = allowed_default;
 122
 123         for (i = 0; allowed[i]; i++) {
 124                 if (g_strcmp0(allowed[i], type_str) == 0)
 125                         return true;
 126         }
 127
 128         return false;
 129 }
 130
 131 static const char *get_name(enum connman_service_type type)
 132 {
 133         switch (type) {
 134         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 135         case CONNMAN_SERVICE_TYPE_SYSTEM:
 136         case CONNMAN_SERVICE_TYPE_GPS:
 137         case CONNMAN_SERVICE_TYPE_VPN:
 138                 break;
 139         case CONNMAN_SERVICE_TYPE_GADGET:
 140                 return "Gadget";
 141         case CONNMAN_SERVICE_TYPE_ETHERNET:
 142                 return "Wired";
 143         case CONNMAN_SERVICE_TYPE_WIFI:
 144                 return "WiFi";
 145         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 146                 return "Bluetooth";
 147         case CONNMAN_SERVICE_TYPE_CELLULAR:
 148                 return "Cellular";
 149         case CONNMAN_SERVICE_TYPE_P2P:
 150                 return "P2P";
 151         }
 152
 153         return NULL;
 154 }
 155
 156 static void technology_save(struct connman_technology *technology)
 157 {
 158         GKeyFile *keyfile;
 159         gchar *identifier;
 160         const char *name = get_name(technology->type);
 161
 162         DBG("technology %p type %d name %s", technology, technology->type,
 163                                                                         name);
 164         if (!name)
 165                 return;
 166
 167         keyfile = __connman_storage_load_global();
 168         if (!keyfile)
 169                 keyfile = g_key_file_new();
 170
 171         identifier = g_strdup_printf("%s", name);
 172         if (!identifier)
 173                 goto done;
 174
 175         g_key_file_set_boolean(keyfile, identifier, "Enable",
 176                                 technology->enable_persistent);
 177
 178         g_key_file_set_boolean(keyfile, identifier, "Tethering",
 179                                 technology->tethering_persistent);
 180
 181         g_key_file_set_boolean(keyfile, identifier, "Hidden",
 182                                 technology->tethering_hidden);
 183
 184         if (technology->tethering_ident)
 185                 g_key_file_set_string(keyfile, identifier,
 186                                         "Tethering.Identifier",
 187                                         technology->tethering_ident);
 188
 189         if (technology->tethering_passphrase)
 190                 g_key_file_set_string(keyfile, identifier,
 191                                         "Tethering.Passphrase",
 192                                         technology->tethering_passphrase);
 193
 194 done:
 195         g_free(identifier);
 196
 197         __connman_storage_save_global(keyfile);
 198
 199         g_key_file_free(keyfile);
 200
 201         return;
 202 }
 203
 204 static void tethering_changed(struct connman_technology *technology)
 205 {
 206         dbus_bool_t tethering = technology->tethering;
 207
 208         connman_dbus_property_changed_basic(technology->path,
 209                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 210                                                 DBUS_TYPE_BOOLEAN, &tethering);
 211
 212         technology_save(technology);
 213 }
 214
 215 void connman_technology_tethering_notify(struct connman_technology *technology,
 216                                                         bool enabled)
 217 {
 218         DBG("technology %p enabled %u", technology, enabled);
 219
 220         if (technology->tethering == enabled)
 221                 return;
 222
 223         technology->tethering = enabled;
 224
 225         tethering_changed(technology);
 226
 227         if (enabled)
 228                 __connman_tethering_set_enabled();
 229         else
 230                 __connman_tethering_set_disabled();
 231 }
 232
 233 static int set_tethering(struct connman_technology *technology,
 234                                 bool enabled)
 235 {
 236         int result = -EOPNOTSUPP;
 237         int err;
 238         const char *ident, *passphrase, *bridge;
 239         GSList *tech_drivers;
 240         bool hidden;
 241
 242         ident = technology->tethering_ident;
 243         passphrase = technology->tethering_passphrase;
 244         hidden = technology->tethering_hidden;
 245
 246         __sync_synchronize();
 247         if (!technology->enabled)
 248                 return -EACCES;
 249
 250         bridge = __connman_tethering_get_bridge();
 251         if (!bridge)
 252                 return -EOPNOTSUPP;
 253
 254         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI && (!ident))
 255                 return -EINVAL;
 256
 257         for (tech_drivers = technology->driver_list; tech_drivers;
 258              tech_drivers = g_slist_next(tech_drivers)) {
 259                 struct connman_technology_driver *driver = tech_drivers->data;
 260
 261                 if (!driver || !driver->set_tethering)
 262                         continue;
 263
 264                 err = driver->set_tethering(technology, ident, passphrase,
 265                                 bridge, enabled, hidden);
 266
 267                 if (result == -EINPROGRESS)
 268                         continue;
 269
 270                 if (err == -EINPROGRESS || err == 0) {
 271                         result = err;
 272                         continue;
 273                 }
 274         }
 275
 276         return result;
 277 }
 278
 279 void connman_technology_regdom_notify(struct connman_technology *technology,
 280                                                         const char *alpha2)
 281 {
 282         DBG("");
 283
 284         if (!alpha2)
 285                 connman_error("Failed to set regulatory domain");
 286         else
 287                 DBG("Regulatory domain set to %s", alpha2);
 288
 289         g_free(technology->regdom);
 290         technology->regdom = g_strdup(alpha2);
 291 }
 292
 293 static int set_regdom_by_device(struct connman_technology *technology,
 294                                                         const char *alpha2)
 295 {
 296         GSList *list;
 297
 298         for (list = technology->device_list; list; list = list->next) {
 299                 struct connman_device *device = list->data;
 300
 301                 if (connman_device_set_regdom(device, alpha2) != 0)
 302                         return -ENOTSUP;
 303         }
 304
 305         return 0;
 306 }
 307
 308 int connman_technology_set_regdom(const char *alpha2)
 309 {
 310         GSList *list, *tech_drivers;
 311
 312         for (list = technology_list; list; list = list->next) {
 313                 struct connman_technology *technology = list->data;
 314
 315                 if (set_regdom_by_device(technology, alpha2) != 0) {
 316
 317                         for (tech_drivers = technology->driver_list;
 318                              tech_drivers;
 319                              tech_drivers = g_slist_next(tech_drivers)) {
 320
 321                                 struct connman_technology_driver *driver =
 322                                         tech_drivers->data;
 323
 324                                 if (driver->set_regdom)
 325                                         driver->set_regdom(technology, alpha2);
 326                         }
 327                 }
 328         }
 329
 330         return 0;
 331 }
 332
 333 static struct connman_technology *technology_find(enum connman_service_type type)
 334 {
 335         GSList *list;
 336
 337         DBG("type %d", type);
 338
 339         for (list = technology_list; list; list = list->next) {
 340                 struct connman_technology *technology = list->data;
 341
 342                 if (technology->type == type)
 343                         return technology;
 344         }
 345
 346         return NULL;
 347 }
 348
 349 bool connman_technology_get_wifi_tethering(const char **ssid,
 350                                                         const char **psk)
 351 {
 352         struct connman_technology *technology;
 353
 354         if (!ssid || !psk)
 355                 return false;
 356
 357         *ssid = *psk = NULL;
 358
 359         technology = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
 360         if (!technology)
 361                 return false;
 362
 363         if (!technology->tethering)
 364                 return false;
 365
 366         *ssid = technology->tethering_ident;
 367         *psk = technology->tethering_passphrase;
 368
 369         return true;
 370 }
 371
 372 static void free_rfkill(gpointer data)
 373 {
 374         struct connman_rfkill *rfkill = data;
 375
 376         g_free(rfkill);
 377 }
 378
 379 static void technology_load(struct connman_technology *technology)
 380 {
 381         GKeyFile *keyfile;
 382         gchar *identifier;
 383         GError *error = NULL;
 384         bool enable, need_saving = false;
 385
 386         DBG("technology %p", technology);
 387
 388         keyfile = __connman_storage_load_global();
 389         /* Fallback on disabling technology if file not found. */
 390         if (!keyfile) {
 391                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 392                         /* We enable ethernet by default */
 393                         technology->enable_persistent = true;
 394                 else
 395                         technology->enable_persistent = false;
 396                 return;
 397         }
 398
 399         identifier = g_strdup_printf("%s", get_name(technology->type));
 400         if (!identifier)
 401                 goto done;
 402
 403         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 404         if (!error)
 405                 technology->enable_persistent = enable;
 406         else {
 407                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 408                         technology->enable_persistent = true;
 409                 else
 410                         technology->enable_persistent = false;
 411
 412                 need_saving = true;
 413                 g_clear_error(&error);
 414         }
 415
 416         enable = g_key_file_get_boolean(keyfile, identifier,
 417                                         "Tethering", &error);
 418         if (!error)
 419                 technology->tethering_persistent = enable;
 420         else {
 421                 need_saving = true;
 422                 g_clear_error(&error);
 423         }
 424
 425         if (need_saving)
 426                 technology_save(technology);
 427
 428         technology->tethering_ident = g_key_file_get_string(keyfile,
 429                                 identifier, "Tethering.Identifier", NULL);
 430
 431         technology->tethering_passphrase = g_key_file_get_string(keyfile,
 432                                 identifier, "Tethering.Passphrase", NULL);
 433 done:
 434         g_free(identifier);
 435
 436         g_key_file_free(keyfile);
 437
 438         return;
 439 }
 440
 441 bool __connman_technology_get_offlinemode(void)
 442 {
 443         return global_offlinemode;
 444 }
 445
 446 static void connman_technology_save_offlinemode(void)
 447 {
 448         GKeyFile *keyfile;
 449
 450         keyfile = __connman_storage_load_global();
 451         if (!keyfile)
 452                 keyfile = g_key_file_new();
 453
 454         g_key_file_set_boolean(keyfile, "global",
 455                                         "OfflineMode", global_offlinemode);
 456
 457         __connman_storage_save_global(keyfile);
 458
 459         g_key_file_free(keyfile);
 460
 461         return;
 462 }
 463
 464 static bool connman_technology_load_offlinemode(void)
 465 {
 466         GKeyFile *keyfile;
 467         GError *error = NULL;
 468         bool offlinemode;
 469
 470         /* If there is a error, we enable offlinemode */
 471         keyfile = __connman_storage_load_global();
 472         if (!keyfile)
 473                 return false;
 474
 475         offlinemode = g_key_file_get_boolean(keyfile, "global",
 476                                                 "OfflineMode", &error);
 477         if (error) {
 478                 offlinemode = false;
 479                 g_clear_error(&error);
 480         }
 481
 482         g_key_file_free(keyfile);
 483
 484         return offlinemode;
 485 }
 486
 487 static void append_properties(DBusMessageIter *iter,
 488                 struct connman_technology *technology)
 489 {
 490         DBusMessageIter dict;
 491         dbus_bool_t val;
 492         const char *str;
 493
 494         connman_dbus_dict_open(iter, &dict);
 495
 496         str = get_name(technology->type);
 497         if (str)
 498                 connman_dbus_dict_append_basic(&dict, "Name",
 499                                                 DBUS_TYPE_STRING, &str);
 500
 501         str = __connman_service_type2string(technology->type);
 502         if (str)
 503                 connman_dbus_dict_append_basic(&dict, "Type",
 504                                                 DBUS_TYPE_STRING, &str);
 505
 506         __sync_synchronize();
 507         val = technology->enabled;
 508         connman_dbus_dict_append_basic(&dict, "Powered",
 509                                         DBUS_TYPE_BOOLEAN,
 510                                         &val);
 511
 512         val = technology->connected;
 513         connman_dbus_dict_append_basic(&dict, "Connected",
 514                                         DBUS_TYPE_BOOLEAN,
 515                                         &val);
 516
 517         val = technology->tethering;
 518         connman_dbus_dict_append_basic(&dict, "Tethering",
 519                                         DBUS_TYPE_BOOLEAN,
 520                                         &val);
 521
 522         if (technology->tethering_ident)
 523                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 524                                         DBUS_TYPE_STRING,
 525                                         &technology->tethering_ident);
 526
 527         if (technology->tethering_passphrase)
 528                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 529                                         DBUS_TYPE_STRING,
 530                                         &technology->tethering_passphrase);
 531
 532         val = technology->tethering_hidden;
 533         connman_dbus_dict_append_basic(&dict, "Hidden",
 534                                         DBUS_TYPE_BOOLEAN,
 535                                         &val);
 536
 537         connman_dbus_dict_close(iter, &dict);
 538 }
 539
 540 static void technology_added_signal(struct connman_technology *technology)
 541 {
 542         DBusMessage *signal;
 543         DBusMessageIter iter;
 544
 545         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 546                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 547         if (!signal)
 548                 return;
 549
 550         dbus_message_iter_init_append(signal, &iter);
 551         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 552                                                         &technology->path);
 553         append_properties(&iter, technology);
 554
 555         dbus_connection_send(connection, signal, NULL);
 556         dbus_message_unref(signal);
 557 }
 558
 559 static void technology_removed_signal(struct connman_technology *technology)
 560 {
 561         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 562                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 563                         DBUS_TYPE_OBJECT_PATH, &technology->path,
 564                         DBUS_TYPE_INVALID);
 565 }
 566
 567 static DBusMessage *get_properties(DBusConnection *conn,
 568                                         DBusMessage *message, void *user_data)
 569 {
 570         struct connman_technology *technology = user_data;
 571         DBusMessage *reply;
 572         DBusMessageIter iter;
 573
 574         reply = dbus_message_new_method_return(message);
 575         if (!reply)
 576                 return NULL;
 577
 578         dbus_message_iter_init_append(reply, &iter);
 579         append_properties(&iter, technology);
 580
 581         return reply;
 582 }
 583
 584 void __connman_technology_list_struct(DBusMessageIter *array)
 585 {
 586         GSList *list;
 587         DBusMessageIter entry;
 588
 589         for (list = technology_list; list; list = list->next) {
 590                 struct connman_technology *technology = list->data;
 591
 592                 if (!technology->path ||
 593                                 (technology->rfkill_driven &&
 594                                  technology->hardblocked))
 595                         continue;
 596
 597                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 598                                 NULL, &entry);
 599                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 600                                 &technology->path);
 601                 append_properties(&entry, technology);
 602                 dbus_message_iter_close_container(array, &entry);
 603         }
 604 }
 605
 606 static gboolean technology_pending_reply(gpointer user_data)
 607 {
 608         struct connman_technology *technology = user_data;
 609         DBusMessage *reply;
 610
 611         /* Power request timedout, send ETIMEDOUT. */
 612         if (technology->pending_reply) {
 613                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 614                 if (reply)
 615                         g_dbus_send_message(connection, reply);
 616
 617                 dbus_message_unref(technology->pending_reply);
 618                 technology->pending_reply = NULL;
 619                 technology->pending_timeout = 0;
 620         }
 621
 622         return FALSE;
 623 }
 624
 625 static int technology_affect_devices(struct connman_technology *technology,
 626                                                 bool enable_device)
 627 {
 628         GSList *list;
 629         int err = -ENXIO;
 630
 631         if (technology->type == CONNMAN_SERVICE_TYPE_P2P)
 632                 return 0;
 633
 634         for (list = technology->device_list; list; list = list->next) {
 635                 struct connman_device *device = list->data;
 636
 637                 if (enable_device)
 638                         err = __connman_device_enable(device);
 639                 else
 640                         err = __connman_device_disable(device);
 641         }
 642
 643         return err;
 644 }
 645
 646 static void powered_changed(struct connman_technology *technology)
 647 {
 648         dbus_bool_t enabled;
 649
 650         if (!technology->dbus_registered)
 651                 return;
 652
 653         if (technology->pending_reply) {
 654                 g_dbus_send_reply(connection,
 655                                 technology->pending_reply, DBUS_TYPE_INVALID);
 656                 dbus_message_unref(technology->pending_reply);
 657                 technology->pending_reply = NULL;
 658
 659                 g_source_remove(technology->pending_timeout);
 660                 technology->pending_timeout = 0;
 661         }
 662
 663         __sync_synchronize();
 664         enabled = technology->enabled;
 665         connman_dbus_property_changed_basic(technology->path,
 666                         CONNMAN_TECHNOLOGY_INTERFACE, "Powered",
 667                         DBUS_TYPE_BOOLEAN, &enabled);
 668 }
 669
 670 static void enable_tethering(struct connman_technology *technology)
 671 {
 672         int ret;
 673
 674         if (!connman_setting_get_bool("PersistentTetheringMode"))
 675                 return;
 676
 677         ret = set_tethering(technology, true);
 678         if (ret < 0 && ret != -EALREADY)
 679                 DBG("Cannot enable tethering yet for %s (%d/%s)",
 680                         get_name(technology->type),
 681                         -ret, strerror(-ret));
 682 }
 683
 684 static int technology_enabled(struct connman_technology *technology)
 685 {
 686         __sync_synchronize();
 687         if (technology->enabled)
 688                 return -EALREADY;
 689
 690         technology->enabled = true;
 691
 692         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI) {
 693                 struct connman_technology *p2p;
 694
 695                 p2p = technology_find(CONNMAN_SERVICE_TYPE_P2P);
 696                 if (p2p && !p2p->enabled && p2p->enable_persistent)
 697                         technology_enabled(p2p);
 698         }
 699
 700         if (technology->tethering_persistent)
 701                 enable_tethering(technology);
 702
 703         powered_changed(technology);
 704
 705         return 0;
 706 }
 707
 708 static int technology_enable(struct connman_technology *technology)
 709 {
 710         int err = 0;
 711         int err_dev;
 712
 713         DBG("technology %p enable", technology);
 714
 715         __sync_synchronize();
 716
 717         if (technology->type == CONNMAN_SERVICE_TYPE_P2P) {
 718                 struct connman_technology *wifi;
 719
 720                 wifi = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
 721                 if (wifi && wifi->enabled)
 722                         return technology_enabled(technology);
 723                 return 0;
 724         }
 725
 726         if (technology->enabled)
 727                 return -EALREADY;
 728
 729         if (technology->pending_reply)
 730                 return -EBUSY;
 731
 732         if (connman_setting_get_bool("PersistentTetheringMode") &&
 733                                         technology->tethering)
 734                 set_tethering(technology, true);
 735
 736         if (technology->rfkill_driven)
 737                 err = __connman_rfkill_block(technology->type, false);
 738
 739         err_dev = technology_affect_devices(technology, true);
 740
 741         if (!technology->rfkill_driven)
 742                 err = err_dev;
 743
 744         return err;
 745 }
 746
 747 static int technology_disabled(struct connman_technology *technology)
 748 {
 749         __sync_synchronize();
 750         if (!technology->enabled)
 751                 return -EALREADY;
 752
 753         technology->enabled = false;
 754
 755         powered_changed(technology);
 756
 757         return 0;
 758 }
 759
 760 static int technology_disable(struct connman_technology *technology)
 761 {
 762         int err;
 763
 764         DBG("technology %p disable", technology);
 765
 766         __sync_synchronize();
 767
 768         if (technology->type == CONNMAN_SERVICE_TYPE_P2P) {
 769                 technology->enable_persistent = false;
 770                 return technology_disabled(technology);
 771         } else if (technology->type == CONNMAN_SERVICE_TYPE_WIFI) {
 772                 struct connman_technology *p2p;
 773
 774                 p2p = technology_find(CONNMAN_SERVICE_TYPE_P2P);
 775                 if (p2p && p2p->enabled) {
 776                         p2p->enable_persistent = true;
 777                         technology_disabled(p2p);
 778                 }
 779         }
 780
 781         if (!technology->enabled)
 782                 return -EALREADY;
 783
 784         if (technology->pending_reply)
 785                 return -EBUSY;
 786
 787         if (technology->tethering)
 788                 set_tethering(technology, false);
 789
 790         err = technology_affect_devices(technology, false);
 791
 792         if (technology->rfkill_driven)
 793                 err = __connman_rfkill_block(technology->type, true);
 794
 795         return err;
 796 }
 797
 798 static DBusMessage *set_powered(struct connman_technology *technology,
 799                                 DBusMessage *msg, bool powered)
 800 {
 801         DBusMessage *reply = NULL;
 802         int err = 0;
 803
 804         if (technology->rfkill_driven && technology->hardblocked) {
 805                 err = -EACCES;
 806                 goto make_reply;
 807         }
 808
 809         if (powered)
 810                 err = technology_enable(technology);
 811         else
 812                 err = technology_disable(technology);
 813
 814         if (err != -EBUSY) {
 815                 technology->enable_persistent = powered;
 816                 technology_save(technology);
 817         }
 818
 819 make_reply:
 820         if (err == -EINPROGRESS) {
 821                 technology->pending_reply = dbus_message_ref(msg);
 822                 technology->pending_timeout = g_timeout_add_seconds(10,
 823                                         technology_pending_reply, technology);
 824         } else if (err == -EALREADY) {
 825                 if (powered)
 826                         reply = __connman_error_already_enabled(msg);
 827                 else
 828                         reply = __connman_error_already_disabled(msg);
 829         } else if (err < 0)
 830                 reply = __connman_error_failed(msg, -err);
 831         else
 832                 reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 833
 834         return reply;
 835 }
 836
 837 static DBusMessage *set_property(DBusConnection *conn,
 838                                         DBusMessage *msg, void *data)
 839 {
 840         struct connman_technology *technology = data;
 841         DBusMessageIter iter, value;
 842         const char *name;
 843         int type;
 844
 845         DBG("conn %p", conn);
 846
 847         if (!dbus_message_iter_init(msg, &iter))
 848                 return __connman_error_invalid_arguments(msg);
 849
 850         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 851                 return __connman_error_invalid_arguments(msg);
 852
 853         dbus_message_iter_get_basic(&iter, &name);
 854         dbus_message_iter_next(&iter);
 855
 856         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 857                 return __connman_error_invalid_arguments(msg);
 858
 859         dbus_message_iter_recurse(&iter, &value);
 860
 861         type = dbus_message_iter_get_arg_type(&value);
 862
 863         DBG("property %s", name);
 864
 865         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI && technology->connected) {
 866                 uid_t uid;
 867                 if (connman_dbus_get_connection_unix_user_sync(conn,
 868                                                 dbus_message_get_sender(msg),
 869                                                 &uid) < 0) {
 870                         DBG("Can not get unix user id!");
 871                         return __connman_error_permission_denied(msg);
 872                 }
 873
 874                 if (!__connman_service_is_user_allowed(CONNMAN_SERVICE_TYPE_WIFI, uid)) {
 875                         DBG("Not allow this user to operate wifi technology now!");
 876                         return __connman_error_permission_denied(msg);
 877                 }
 878         }
 879
 880         if (g_str_equal(name, "Tethering")) {
 881                 dbus_bool_t tethering;
 882                 int err;
 883
 884                 if (type != DBUS_TYPE_BOOLEAN)
 885                         return __connman_error_invalid_arguments(msg);
 886
 887                 if (!connman_technology_is_tethering_allowed(technology->type)) {
 888                         DBG("%s tethering not allowed by config file",
 889                                 __connman_service_type2string(technology->type));
 890                         return __connman_error_not_supported(msg);
 891                 }
 892
 893                 dbus_message_iter_get_basic(&value, &tethering);
 894
 895                 if (technology->tethering == tethering) {
 896                         if (!tethering)
 897                                 return __connman_error_already_disabled(msg);
 898                         else
 899                                 return __connman_error_already_enabled(msg);
 900                 }
 901
 902                 err = set_tethering(technology, tethering);
 903                 if (err < 0)
 904                         return __connman_error_failed(msg, -err);
 905
 906                 technology->tethering_persistent = tethering;
 907
 908                 technology_save(technology);
 909
 910         } else if (g_str_equal(name, "TetheringIdentifier")) {
 911                 const char *str;
 912
 913                 dbus_message_iter_get_basic(&value, &str);
 914
 915                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 916                         return __connman_error_not_supported(msg);
 917
 918                 if (strlen(str) < 1 || strlen(str) > 32)
 919                         return __connman_error_invalid_arguments(msg);
 920
 921                 if (g_strcmp0(technology->tethering_ident, str) != 0) {
 922                         g_free(technology->tethering_ident);
 923                         technology->tethering_ident = g_strdup(str);
 924                         technology_save(technology);
 925
 926                         connman_dbus_property_changed_basic(technology->path,
 927                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 928                                                 "TetheringIdentifier",
 929                                                 DBUS_TYPE_STRING,
 930                                                 &technology->tethering_ident);
 931                 }
 932         } else if (g_str_equal(name, "TetheringPassphrase")) {
 933                 const char *str;
 934
 935                 dbus_message_iter_get_basic(&value, &str);
 936
 937                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 938                         return __connman_error_not_supported(msg);
 939
 940                 if (strlen(str) < 8 || strlen(str) > 63) {
 941                         if (g_str_equal(str, "")) {
 942                                 technology->tethering_passphrase = NULL;
 943
 944                                 connman_dbus_property_changed_basic(technology->path,
 945                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 946                                                 "TetheringPassphrase",
 947                                                 DBUS_TYPE_STRING,
 948                                                 &str);
 949                         }
 950                         else
 951                                 return __connman_error_passphrase_required(msg);
 952                 } else {
 953                         if (g_strcmp0(technology->tethering_passphrase, str) != 0) {
 954                                 g_free(technology->tethering_passphrase);
 955                                 technology->tethering_passphrase = g_strdup(str);
 956                                 technology_save(technology);
 957
 958                                 connman_dbus_property_changed_basic(technology->path,
 959                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 960                                                 "TetheringPassphrase",
 961                                                 DBUS_TYPE_STRING,
 962                                                 &technology->tethering_passphrase);
 963                         }
 964                 }
 965         } else if (g_str_equal(name, "Hidden")) {
 966                 dbus_bool_t hidden;
 967
 968                 if (type != DBUS_TYPE_BOOLEAN)
 969                         return __connman_error_invalid_arguments(msg);
 970
 971                 dbus_message_iter_get_basic(&value, &hidden);
 972
 973                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 974                         return __connman_error_not_supported(msg);
 975
 976                 technology->tethering_hidden = hidden;
 977                 technology_save(technology);
 978
 979                 connman_dbus_property_changed_basic(technology->path,
 980                                         CONNMAN_TECHNOLOGY_INTERFACE,
 981                                         "Hidden",
 982                                         DBUS_TYPE_BOOLEAN,
 983                                         &hidden);
 984         } else if (g_str_equal(name, "Powered")) {
 985                 dbus_bool_t enable;
 986
 987                 if (type != DBUS_TYPE_BOOLEAN)
 988                         return __connman_error_invalid_arguments(msg);
 989
 990                 dbus_message_iter_get_basic(&value, &enable);
 991
 992                 return set_powered(technology, msg, enable);
 993         } else
 994                 return __connman_error_invalid_property(msg);
 995
 996         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 997 }
 998
 999 static void reply_scan_pending(struct connman_technology *technology, int err)
1000 {
1001         DBusMessage *reply;
1002
1003         DBG("technology %p err %d", technology, err);
1004
1005         while (technology->scan_pending) {
1006                 DBusMessage *msg = technology->scan_pending->data;
1007
1008                 DBG("reply to %s", dbus_message_get_sender(msg));
1009
1010                 if (err == 0)
1011                         reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
1012                 else
1013                         reply = __connman_error_failed(msg, -err);
1014                 g_dbus_send_message(connection, reply);
1015                 dbus_message_unref(msg);
1016
1017                 technology->scan_pending =
1018                         g_slist_delete_link(technology->scan_pending,
1019                                         technology->scan_pending);
1020         }
1021 }
1022
1023 void __connman_technology_scan_started(struct connman_device *device)
1024 {
1025         DBG("device %p", device);
1026 }
1027
1028 void __connman_technology_scan_stopped(struct connman_device *device,
1029                                         enum connman_service_type type)
1030 {
1031         int count = 0;
1032         struct connman_technology *technology;
1033         GSList *list;
1034
1035         technology = technology_find(type);
1036
1037         DBG("technology %p device %p", technology, device);
1038
1039         if (!technology)
1040                 return;
1041
1042         for (list = technology->device_list; list; list = list->next) {
1043                 struct connman_device *other_device = list->data;
1044
1045                 if (device == other_device)
1046                         continue;
1047
1048                 if (__connman_device_get_service_type(other_device) != type)
1049                         continue;
1050
1051                 if (connman_device_get_scanning(other_device))
1052                         count += 1;
1053         }
1054
1055         if (count == 0)
1056                 reply_scan_pending(technology, 0);
1057 }
1058
1059 void __connman_technology_notify_regdom_by_device(struct connman_device *device,
1060                                                 int result, const char *alpha2)
1061 {
1062         bool regdom_set = false;
1063         struct connman_technology *technology;
1064         enum connman_service_type type;
1065         GSList *tech_drivers;
1066
1067         type = __connman_device_get_service_type(device);
1068         technology = technology_find(type);
1069
1070         if (!technology)
1071                 return;
1072
1073         if (result < 0) {
1074
1075                 for (tech_drivers = technology->driver_list;
1076                      tech_drivers;
1077                      tech_drivers = g_slist_next(tech_drivers)) {
1078                         struct connman_technology_driver *driver =
1079                                 tech_drivers->data;
1080
1081                         if (driver->set_regdom) {
1082                                 driver->set_regdom(technology, alpha2);
1083                                 regdom_set = true;
1084                         }
1085
1086                 }
1087
1088                 if (!regdom_set)
1089                         alpha2 = NULL;
1090         }
1091
1092         connman_technology_regdom_notify(technology, alpha2);
1093 }
1094
1095 static DBusMessage *scan(DBusConnection *conn, DBusMessage *msg, void *data)
1096 {
1097         struct connman_technology *technology = data;
1098         int err;
1099
1100         DBG("technology %p request from %s", technology,
1101                         dbus_message_get_sender(msg));
1102
1103         dbus_message_ref(msg);
1104         technology->scan_pending =
1105                 g_slist_prepend(technology->scan_pending, msg);
1106
1107         err = __connman_device_request_scan(technology->type);
1108         if (err < 0)
1109                 reply_scan_pending(technology, err);
1110
1111         return NULL;
1112 }
1113
1114 static const GDBusMethodTable technology_methods[] = {
1115         { GDBUS_DEPRECATED_METHOD("GetProperties",
1116                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
1117                         get_properties) },
1118         { GDBUS_ASYNC_METHOD("SetProperty",
1119                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
1120                         NULL, set_property) },
1121         { GDBUS_ASYNC_METHOD("Scan", NULL, NULL, scan) },
1122         { },
1123 };
1124
1125 static const GDBusSignalTable technology_signals[] = {
1126         { GDBUS_SIGNAL("PropertyChanged",
1127                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
1128         { GDBUS_SIGNAL("DhcpConnected",
1129                         GDBUS_ARGS({ "aptype", "s" },
1130                                 { "ipaddr", "s" },
1131                                 { "macaddr", "s" },
1132                                 { "hostname", "s" })) },
1133         { GDBUS_SIGNAL("DhcpLeaseDeleted",
1134                         GDBUS_ARGS({ "aptype", "s" },
1135                                 { "ipaddr", "s" },
1136                                 { "macaddr", "s" },
1137                                 { "hostname", "s" })) },
1138         { },
1139 };
1140
1141 static bool technology_dbus_register(struct connman_technology *technology)
1142 {
1143         if (technology->dbus_registered ||
1144                                 (technology->rfkill_driven &&
1145                                  technology->hardblocked))
1146                 return true;
1147
1148         if (!g_dbus_register_interface(connection, technology->path,
1149                                         CONNMAN_TECHNOLOGY_INTERFACE,
1150                                         technology_methods, technology_signals,
1151                                         NULL, technology, NULL)) {
1152                 connman_error("Failed to register %s", technology->path);
1153                 return false;
1154         }
1155
1156         technology_added_signal(technology);
1157         technology->dbus_registered = true;
1158
1159         return true;
1160 }
1161
1162 static void technology_dbus_unregister(struct connman_technology *technology)
1163 {
1164         if (!technology->dbus_registered)
1165                 return;
1166
1167         technology_removed_signal(technology);
1168         g_dbus_unregister_interface(connection, technology->path,
1169                 CONNMAN_TECHNOLOGY_INTERFACE);
1170
1171         technology->dbus_registered = false;
1172 }
1173
1174 static void technology_put(struct connman_technology *technology)
1175 {
1176         DBG("technology %p", technology);
1177
1178         if (__sync_sub_and_fetch(&technology->refcount, 1) > 0)
1179                 return;
1180
1181         reply_scan_pending(technology, -EINTR);
1182
1183         while (technology->driver_list) {
1184                 struct connman_technology_driver *driver;
1185
1186                 driver = technology->driver_list->data;
1187
1188                 if (driver->remove)
1189                         driver->remove(technology);
1190
1191                 technology->driver_list =
1192                         g_slist_delete_link(technology->driver_list,
1193                                         technology->driver_list);
1194         }
1195
1196         technology_list = g_slist_remove(technology_list, technology);
1197
1198         technology_dbus_unregister(technology);
1199
1200         g_slist_free(technology->device_list);
1201
1202         g_free(technology->path);
1203         g_free(technology->regdom);
1204         g_free(technology->tethering_ident);
1205         g_free(technology->tethering_passphrase);
1206         g_free(technology);
1207 }
1208
1209 static struct connman_technology *technology_get(enum connman_service_type type)
1210 {
1211         GSList *tech_drivers = NULL;
1212         struct connman_technology_driver *driver;
1213         struct connman_technology *technology;
1214         const char *str;
1215         GSList *list;
1216
1217         DBG("type %d", type);
1218
1219         str = __connman_service_type2string(type);
1220         if (!str)
1221                 return NULL;
1222
1223         technology = technology_find(type);
1224         if (technology) {
1225                 if (type != CONNMAN_SERVICE_TYPE_P2P)
1226                         __sync_fetch_and_add(&technology->refcount, 1);
1227                 return technology;
1228         }
1229
1230         /* First check if we have a driver for this technology type */
1231         for (list = driver_list; list; list = list->next) {
1232                 driver = list->data;
1233
1234                 if (driver->type == type) {
1235                         DBG("technology %p driver %p", technology, driver);
1236                         tech_drivers = g_slist_append(tech_drivers, driver);
1237                 }
1238         }
1239
1240         if (!tech_drivers) {
1241                 DBG("No matching drivers found for %s.",
1242                                 __connman_service_type2string(type));
1243                 return NULL;
1244         }
1245
1246         technology = g_try_new0(struct connman_technology, 1);
1247         if (!technology)
1248                 return NULL;
1249
1250         technology->refcount = 1;
1251         technology->type = type;
1252         technology->tethering_hidden = FALSE;
1253         technology->path = g_strdup_printf("%s/technology/%s",
1254                                                         CONNMAN_PATH, str);
1255         if (type == CONNMAN_SERVICE_TYPE_P2P) {
1256                 struct connman_technology *wifi;
1257
1258                 wifi = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
1259                 if (wifi)
1260                         technology->enabled = wifi->enabled;
1261         }
1262
1263         technology_load(technology);
1264         technology_list = g_slist_prepend(technology_list, technology);
1265         technology->driver_list = tech_drivers;
1266
1267         for (list = tech_drivers; list; list = list->next) {
1268                 driver = list->data;
1269
1270                 if (driver->probe && driver->probe(technology) < 0)
1271                         DBG("Driver probe failed for technology %p",
1272                                         technology);
1273         }
1274
1275         if (!technology_dbus_register(technology)) {
1276                 technology_put(technology);
1277                 return NULL;
1278         }
1279
1280         DBG("technology %p", technology);
1281
1282         return technology;
1283 }
1284
1285 int connman_technology_driver_register(struct connman_technology_driver *driver)
1286 {
1287         GSList *list;
1288         struct connman_device *device;
1289         enum connman_service_type type;
1290
1291         for (list = driver_list; list; list = list->next) {
1292                 if (list->data == driver)
1293                         goto exist;
1294         }
1295
1296         DBG("Registering %s driver", driver->name);
1297
1298         driver_list = g_slist_insert_sorted(driver_list, driver,
1299                                                         compare_priority);
1300
1301         /*
1302          * Check for technology less devices if this driver
1303          * can service any of them.
1304         */
1305         for (list = techless_device_list; list; list = list->next) {
1306                 device = list->data;
1307
1308                 type = __connman_device_get_service_type(device);
1309                 if (type != driver->type)
1310                         continue;
1311
1312                 techless_device_list = g_slist_remove(techless_device_list,
1313                                                                 device);
1314
1315                 __connman_technology_add_device(device);
1316         }
1317
1318         /* Check for orphaned rfkill switches. */
1319         g_hash_table_foreach(rfkill_list, rfkill_check,
1320                                         GINT_TO_POINTER(driver->type));
1321
1322 exist:
1323         if (driver->type == CONNMAN_SERVICE_TYPE_P2P) {
1324                 if (!technology_get(CONNMAN_SERVICE_TYPE_P2P))
1325                         return -ENOMEM;
1326         }
1327
1328         return 0;
1329 }
1330
1331 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
1332 {
1333         GSList *list, *tech_drivers;
1334         struct connman_technology *technology;
1335         struct connman_technology_driver *current;
1336
1337         DBG("Unregistering driver %p name %s", driver, driver->name);
1338
1339         for (list = technology_list; list; list = list->next) {
1340                 technology = list->data;
1341
1342                 for (tech_drivers = technology->driver_list; tech_drivers;
1343                                 tech_drivers = g_slist_next(tech_drivers)) {
1344                         current = tech_drivers->data;
1345                         if (driver != current)
1346                                 continue;
1347
1348                         if (driver->remove)
1349                                 driver->remove(technology);
1350
1351                         technology->driver_list =
1352                                 g_slist_remove(technology->driver_list,
1353                                                                 driver);
1354                         break;
1355                 }
1356         }
1357
1358         driver_list = g_slist_remove(driver_list, driver);
1359
1360         if (driver->type == CONNMAN_SERVICE_TYPE_P2P) {
1361                 technology = technology_find(CONNMAN_SERVICE_TYPE_P2P);
1362                 if (technology)
1363                         technology_put(technology);
1364         }
1365 }
1366
1367 void __connman_technology_add_interface(enum connman_service_type type,
1368                                 int index, const char *ident)
1369 {
1370         struct connman_technology *technology;
1371         GSList *tech_drivers;
1372         struct connman_technology_driver *driver;
1373         char *name;
1374
1375         switch (type) {
1376         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1377         case CONNMAN_SERVICE_TYPE_SYSTEM:
1378                 return;
1379         case CONNMAN_SERVICE_TYPE_ETHERNET:
1380         case CONNMAN_SERVICE_TYPE_WIFI:
1381         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1382         case CONNMAN_SERVICE_TYPE_CELLULAR:
1383         case CONNMAN_SERVICE_TYPE_GPS:
1384         case CONNMAN_SERVICE_TYPE_VPN:
1385         case CONNMAN_SERVICE_TYPE_GADGET:
1386         case CONNMAN_SERVICE_TYPE_P2P:
1387                 break;
1388         }
1389
1390         name = connman_inet_ifname(index);
1391         connman_info("Adding interface %s [ %s ]", name,
1392                                 __connman_service_type2string(type));
1393
1394         technology = technology_find(type);
1395
1396         if (!technology)
1397                 goto out;
1398
1399         for (tech_drivers = technology->driver_list; tech_drivers;
1400              tech_drivers = g_slist_next(tech_drivers)) {
1401                 driver = tech_drivers->data;
1402
1403                 if (driver->add_interface)
1404                         driver->add_interface(technology, index, name, ident);
1405         }
1406
1407         /*
1408          * At this point we can try to enable tethering automatically as
1409          * now the interfaces are set properly.
1410          */
1411         if (technology->tethering_persistent)
1412                 enable_tethering(technology);
1413
1414 out:
1415         g_free(name);
1416 }
1417
1418 void __connman_technology_remove_interface(enum connman_service_type type,
1419                                 int index, const char *ident)
1420 {
1421         struct connman_technology *technology;
1422         GSList *tech_drivers;
1423         struct connman_technology_driver *driver;
1424         char *name;
1425
1426         switch (type) {
1427         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1428         case CONNMAN_SERVICE_TYPE_SYSTEM:
1429                 return;
1430         case CONNMAN_SERVICE_TYPE_ETHERNET:
1431         case CONNMAN_SERVICE_TYPE_WIFI:
1432         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1433         case CONNMAN_SERVICE_TYPE_CELLULAR:
1434         case CONNMAN_SERVICE_TYPE_GPS:
1435         case CONNMAN_SERVICE_TYPE_VPN:
1436         case CONNMAN_SERVICE_TYPE_GADGET:
1437         case CONNMAN_SERVICE_TYPE_P2P:
1438                 break;
1439         }
1440
1441         name = connman_inet_ifname(index);
1442         connman_info("Remove interface %s [ %s ]", name,
1443                                 __connman_service_type2string(type));
1444         g_free(name);
1445
1446         technology = technology_find(type);
1447
1448         if (!technology)
1449                 return;
1450
1451         for (tech_drivers = technology->driver_list; tech_drivers;
1452              tech_drivers = g_slist_next(tech_drivers)) {
1453                 driver = tech_drivers->data;
1454
1455                 if (driver->remove_interface)
1456                         driver->remove_interface(technology, index);
1457         }
1458 }
1459
1460 int __connman_technology_add_device(struct connman_device *device)
1461 {
1462         struct connman_technology *technology;
1463         enum connman_service_type type;
1464
1465         type = __connman_device_get_service_type(device);
1466
1467         DBG("device %p type %s", device, get_name(type));
1468
1469         technology = technology_get(type);
1470         if (!technology) {
1471                 /*
1472                  * Since no driver can be found for this device at the moment we
1473                  * add it to the techless device list.
1474                 */
1475                 techless_device_list = g_slist_prepend(techless_device_list,
1476                                                                 device);
1477
1478                 return -ENXIO;
1479         }
1480
1481         __sync_synchronize();
1482         if (technology->rfkill_driven) {
1483                 if (technology->enabled)
1484                         __connman_device_enable(device);
1485                 else
1486                         __connman_device_disable(device);
1487
1488                 goto done;
1489         }
1490
1491         if (technology->enable_persistent &&
1492                                         !global_offlinemode) {
1493                 int err = __connman_device_enable(device);
1494                 /*
1495                  * connman_technology_add_device() calls __connman_device_enable()
1496                  * but since the device is already enabled, the calls does not
1497                  * propagate through to connman_technology_enabled via
1498                  * connman_device_set_powered.
1499                  */
1500                 if (err == -EALREADY)
1501                         __connman_technology_enabled(type);
1502         }
1503         /* if technology persistent state is offline */
1504         if (!technology->enable_persistent)
1505                 __connman_device_disable(device);
1506
1507 done:
1508         technology->device_list = g_slist_prepend(technology->device_list,
1509                                                                 device);
1510
1511         return 0;
1512 }
1513
1514 int __connman_technology_remove_device(struct connman_device *device)
1515 {
1516         struct connman_technology *technology;
1517         enum connman_service_type type;
1518
1519         DBG("device %p", device);
1520
1521         type = __connman_device_get_service_type(device);
1522
1523         technology = technology_find(type);
1524         if (!technology) {
1525                 techless_device_list = g_slist_remove(techless_device_list,
1526                                                                 device);
1527                 return -ENXIO;
1528         }
1529
1530         technology->device_list = g_slist_remove(technology->device_list,
1531                                                                 device);
1532
1533         if (technology->tethering)
1534                 set_tethering(technology, false);
1535
1536         technology_put(technology);
1537
1538         return 0;
1539 }
1540
1541 int __connman_technology_enabled(enum connman_service_type type)
1542 {
1543         struct connman_technology *technology;
1544
1545         technology = technology_find(type);
1546         if (!technology)
1547                 return -ENXIO;
1548
1549         DBG("technology %p type %s rfkill %d enabled %d", technology,
1550                 get_name(type), technology->rfkill_driven,
1551                 technology->enabled);
1552
1553         if (technology->rfkill_driven) {
1554                 if (technology->tethering_persistent)
1555                         enable_tethering(technology);
1556                 return 0;
1557         }
1558
1559         return technology_enabled(technology);
1560 }
1561
1562 int __connman_technology_disabled(enum connman_service_type type)
1563 {
1564         struct connman_technology *technology;
1565         GSList *list;
1566
1567         technology = technology_find(type);
1568         if (!technology)
1569                 return -ENXIO;
1570
1571         if (technology->rfkill_driven)
1572                 return 0;
1573
1574         for (list = technology->device_list; list; list = list->next) {
1575                 struct connman_device *device = list->data;
1576
1577                 if (connman_device_get_powered(device))
1578                         return 0;
1579         }
1580
1581         return technology_disabled(technology);
1582 }
1583
1584 int __connman_technology_set_offlinemode(bool offlinemode)
1585 {
1586         GSList *list;
1587         int err = -EINVAL, enabled_tech_count = 0;
1588
1589         if (global_offlinemode == offlinemode)
1590                 return 0;
1591
1592         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1593
1594         /*
1595          * This is a bit tricky. When you set offlinemode, there is no
1596          * way to differentiate between attempting offline mode and
1597          * resuming offlinemode from last saved profile. We need that
1598          * information in rfkill_update, otherwise it falls back on the
1599          * technology's persistent state. Hence we set the offline mode here
1600          * but save it & call the notifier only if its successful.
1601          */
1602
1603         global_offlinemode = offlinemode;
1604
1605         /* Traverse technology list, enable/disable each technology. */
1606         for (list = technology_list; list; list = list->next) {
1607                 struct connman_technology *technology = list->data;
1608
1609                 if (offlinemode)
1610                         err = technology_disable(technology);
1611                 else {
1612                         if (technology->hardblocked)
1613                                 continue;
1614
1615                         if (technology->enable_persistent) {
1616                                 err = technology_enable(technology);
1617                                 enabled_tech_count++;
1618                         }
1619                 }
1620         }
1621
1622         if (err == 0 || err == -EINPROGRESS || err == -EALREADY ||
1623                         (err == -EINVAL && enabled_tech_count == 0)) {
1624                 connman_technology_save_offlinemode();
1625                 __connman_notifier_offlinemode(offlinemode);
1626         } else
1627                 global_offlinemode = connman_technology_load_offlinemode();
1628
1629         return err;
1630 }
1631
1632 void __connman_technology_set_connected(enum connman_service_type type,
1633                 bool connected)
1634 {
1635         struct connman_technology *technology;
1636         dbus_bool_t val;
1637
1638         technology = technology_find(type);
1639         if (!technology)
1640                 return;
1641
1642         DBG("technology %p connected %d", technology, connected);
1643
1644         technology->connected = connected;
1645
1646         val = connected;
1647         connman_dbus_property_changed_basic(technology->path,
1648                         CONNMAN_TECHNOLOGY_INTERFACE, "Connected",
1649                         DBUS_TYPE_BOOLEAN, &val);
1650 }
1651
1652 static bool technology_apply_rfkill_change(struct connman_technology *technology,
1653                                                 bool softblock,
1654                                                 bool hardblock,
1655                                                 bool new_rfkill)
1656 {
1657         bool hardblock_changed = false;
1658         bool apply = true;
1659         GList *start, *list;
1660
1661         DBG("technology %p --> %d/%d vs %d/%d",
1662                         technology, softblock, hardblock,
1663                         technology->softblocked, technology->hardblocked);
1664
1665         if (technology->hardblocked == hardblock)
1666                 goto softblock_change;
1667
1668         if (!(new_rfkill && !hardblock)) {
1669                 start = g_hash_table_get_values(rfkill_list);
1670
1671                 for (list = start; list; list = list->next) {
1672                         struct connman_rfkill *rfkill = list->data;
1673
1674                         if (rfkill->type != technology->type)
1675                                 continue;
1676
1677                         if (rfkill->hardblock != hardblock)
1678                                 apply = false;
1679                 }
1680
1681                 g_list_free(start);
1682         }
1683
1684         if (!apply)
1685                 goto softblock_change;
1686
1687         technology->hardblocked = hardblock;
1688         hardblock_changed = true;
1689
1690 softblock_change:
1691         if (!apply && technology->softblocked != softblock)
1692                 apply = true;
1693
1694         if (!apply)
1695                 return technology->hardblocked;
1696
1697         technology->softblocked = softblock;
1698
1699         if (technology->hardblocked ||
1700                                         technology->softblocked) {
1701                 if (technology_disabled(technology) != -EALREADY)
1702                         technology_affect_devices(technology, false);
1703         } else if (!technology->hardblocked &&
1704                                         !technology->softblocked) {
1705                 if (technology_enabled(technology) != -EALREADY)
1706                         technology_affect_devices(technology, true);
1707         }
1708
1709         if (hardblock_changed) {
1710                 if (technology->hardblocked) {
1711                         DBG("%s is switched off.", get_name(technology->type));
1712                         technology_dbus_unregister(technology);
1713                 } else {
1714                         DBG("%s is switched on.", get_name(technology->type));
1715                         technology_dbus_register(technology);
1716
1717                         if (global_offlinemode)
1718                                 __connman_rfkill_block(technology->type, true);
1719                 }
1720         }
1721
1722         return technology->hardblocked;
1723 }
1724
1725 int __connman_technology_add_rfkill(unsigned int index,
1726                                         enum connman_service_type type,
1727                                                 bool softblock,
1728                                                 bool hardblock)
1729 {
1730         struct connman_technology *technology;
1731         struct connman_rfkill *rfkill;
1732
1733         DBG("index %u type %d soft %u hard %u", index, type,
1734                                                         softblock, hardblock);
1735
1736         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1737         if (rfkill)
1738                 goto done;
1739
1740         rfkill = g_try_new0(struct connman_rfkill, 1);
1741         if (!rfkill)
1742                 return -ENOMEM;
1743
1744         rfkill->index = index;
1745         rfkill->type = type;
1746         rfkill->softblock = softblock;
1747         rfkill->hardblock = hardblock;
1748
1749         g_hash_table_insert(rfkill_list, GINT_TO_POINTER(index), rfkill);
1750
1751 done:
1752         technology = technology_get(type);
1753         /* If there is no driver for this type, ignore it. */
1754         if (!technology)
1755                 return -ENXIO;
1756
1757         technology->rfkill_driven = true;
1758
1759         /* If hardblocked, there is no need to handle softblocked state */
1760         if (technology_apply_rfkill_change(technology,
1761                                 softblock, hardblock, true))
1762                 return 0;
1763
1764         if (global_offlinemode)
1765                 return 0;
1766
1767         /*
1768          * Depending on softblocked state we unblock/block according to
1769          * offlinemode and persistente state.
1770          */
1771         if (technology->softblocked &&
1772                                 technology->enable_persistent)
1773                 return __connman_rfkill_block(type, false);
1774         else if (!technology->softblocked &&
1775                                 !technology->enable_persistent)
1776                 return __connman_rfkill_block(type, true);
1777
1778         return 0;
1779 }
1780
1781 int __connman_technology_update_rfkill(unsigned int index,
1782                                         enum connman_service_type type,
1783                                                 bool softblock,
1784                                                 bool hardblock)
1785 {
1786         struct connman_technology *technology;
1787         struct connman_rfkill *rfkill;
1788
1789         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1790
1791         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1792         if (!rfkill)
1793                 return -ENXIO;
1794
1795         if (rfkill->softblock == softblock &&
1796                                 rfkill->hardblock == hardblock)
1797                 return 0;
1798
1799         rfkill->softblock = softblock;
1800         rfkill->hardblock = hardblock;
1801
1802         technology = technology_find(type);
1803         /* If there is no driver for this type, ignore it. */
1804         if (!technology)
1805                 return -ENXIO;
1806
1807         technology_apply_rfkill_change(technology, softblock, hardblock,
1808                                                                 false);
1809
1810         if (technology->hardblocked)
1811                 DBG("%s hardblocked", get_name(technology->type));
1812         else
1813                 DBG("%s is%s softblocked", get_name(technology->type),
1814                         technology->softblocked ? "" : " not");
1815
1816         return 0;
1817 }
1818
1819 int __connman_technology_remove_rfkill(unsigned int index,
1820                                         enum connman_service_type type)
1821 {
1822         struct connman_technology *technology;
1823         struct connman_rfkill *rfkill;
1824
1825         DBG("index %u", index);
1826
1827         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1828         if (!rfkill)
1829                 return -ENXIO;
1830
1831         g_hash_table_remove(rfkill_list, GINT_TO_POINTER(index));
1832
1833         technology = technology_find(type);
1834         if (!technology)
1835                 return -ENXIO;
1836
1837         technology_apply_rfkill_change(technology,
1838                 technology->softblocked, !technology->hardblocked, false);
1839
1840         technology_put(technology);
1841
1842         return 0;
1843 }
1844
1845 int __connman_technology_init(void)
1846 {
1847         DBG("");
1848
1849         connection = connman_dbus_get_connection();
1850
1851         rfkill_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1852                                                         NULL, free_rfkill);
1853
1854         global_offlinemode = connman_technology_load_offlinemode();
1855
1856         /* This will create settings file if it is missing */
1857         connman_technology_save_offlinemode();
1858
1859         return 0;
1860 }
1861
1862 void __connman_technology_cleanup(void)
1863 {
1864         DBG("");
1865
1866         g_hash_table_destroy(rfkill_list);
1867
1868         dbus_connection_unref(connection);
1869 }