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 (g_str_equal(name, "Tethering")) {
 866                 dbus_bool_t tethering;
 867                 int err;
 868
 869                 if (type != DBUS_TYPE_BOOLEAN)
 870                         return __connman_error_invalid_arguments(msg);
 871
 872                 if (!connman_technology_is_tethering_allowed(technology->type)) {
 873                         DBG("%s tethering not allowed by config file",
 874                                 __connman_service_type2string(technology->type));
 875                         return __connman_error_not_supported(msg);
 876                 }
 877
 878                 dbus_message_iter_get_basic(&value, &tethering);
 879
 880                 if (technology->tethering == tethering) {
 881                         if (!tethering)
 882                                 return __connman_error_already_disabled(msg);
 883                         else
 884                                 return __connman_error_already_enabled(msg);
 885                 }
 886
 887                 err = set_tethering(technology, tethering);
 888                 if (err < 0)
 889                         return __connman_error_failed(msg, -err);
 890
 891                 technology->tethering_persistent = tethering;
 892
 893                 technology_save(technology);
 894
 895         } else if (g_str_equal(name, "TetheringIdentifier")) {
 896                 const char *str;
 897
 898                 dbus_message_iter_get_basic(&value, &str);
 899
 900                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 901                         return __connman_error_not_supported(msg);
 902
 903                 if (strlen(str) < 1 || strlen(str) > 32)
 904                         return __connman_error_invalid_arguments(msg);
 905
 906                 if (g_strcmp0(technology->tethering_ident, str) != 0) {
 907                         g_free(technology->tethering_ident);
 908                         technology->tethering_ident = g_strdup(str);
 909                         technology_save(technology);
 910
 911                         connman_dbus_property_changed_basic(technology->path,
 912                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 913                                                 "TetheringIdentifier",
 914                                                 DBUS_TYPE_STRING,
 915                                                 &technology->tethering_ident);
 916                 }
 917         } else if (g_str_equal(name, "TetheringPassphrase")) {
 918                 const char *str;
 919
 920                 dbus_message_iter_get_basic(&value, &str);
 921
 922                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 923                         return __connman_error_not_supported(msg);
 924
 925                 if (strlen(str) < 8 || strlen(str) > 63) {
 926                         if (g_str_equal(str, "")) {
 927                                 technology->tethering_passphrase = NULL;
 928
 929                                 connman_dbus_property_changed_basic(technology->path,
 930                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 931                                                 "TetheringPassphrase",
 932                                                 DBUS_TYPE_STRING,
 933                                                 &str);
 934                         }
 935                         else
 936                                 return __connman_error_passphrase_required(msg);
 937                 } else {
 938                         if (g_strcmp0(technology->tethering_passphrase, str) != 0) {
 939                                 g_free(technology->tethering_passphrase);
 940                                 technology->tethering_passphrase = g_strdup(str);
 941                                 technology_save(technology);
 942
 943                                 connman_dbus_property_changed_basic(technology->path,
 944                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 945                                                 "TetheringPassphrase",
 946                                                 DBUS_TYPE_STRING,
 947                                                 &technology->tethering_passphrase);
 948                         }
 949                 }
 950         } else if (g_str_equal(name, "Hidden")) {
 951                 dbus_bool_t hidden;
 952
 953                 if (type != DBUS_TYPE_BOOLEAN)
 954                         return __connman_error_invalid_arguments(msg);
 955
 956                 dbus_message_iter_get_basic(&value, &hidden);
 957
 958                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 959                         return __connman_error_not_supported(msg);
 960
 961                 technology->tethering_hidden = hidden;
 962                 technology_save(technology);
 963
 964                 connman_dbus_property_changed_basic(technology->path,
 965                                         CONNMAN_TECHNOLOGY_INTERFACE,
 966                                         "Hidden",
 967                                         DBUS_TYPE_BOOLEAN,
 968                                         &hidden);
 969         } else if (g_str_equal(name, "Powered")) {
 970                 dbus_bool_t enable;
 971
 972                 if (type != DBUS_TYPE_BOOLEAN)
 973                         return __connman_error_invalid_arguments(msg);
 974
 975                 dbus_message_iter_get_basic(&value, &enable);
 976
 977                 return set_powered(technology, msg, enable);
 978         } else
 979                 return __connman_error_invalid_property(msg);
 980
 981         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 982 }
 983
 984 static void reply_scan_pending(struct connman_technology *technology, int err)
 985 {
 986         DBusMessage *reply;
 987
 988         DBG("technology %p err %d", technology, err);
 989
 990         while (technology->scan_pending) {
 991                 DBusMessage *msg = technology->scan_pending->data;
 992
 993                 DBG("reply to %s", dbus_message_get_sender(msg));
 994
 995                 if (err == 0)
 996                         reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 997                 else
 998                         reply = __connman_error_failed(msg, -err);
 999                 g_dbus_send_message(connection, reply);
1000                 dbus_message_unref(msg);
1001
1002                 technology->scan_pending =
1003                         g_slist_delete_link(technology->scan_pending,
1004                                         technology->scan_pending);
1005         }
1006 }
1007
1008 void __connman_technology_scan_started(struct connman_device *device)
1009 {
1010         DBG("device %p", device);
1011 }
1012
1013 void __connman_technology_scan_stopped(struct connman_device *device,
1014                                         enum connman_service_type type)
1015 {
1016         int count = 0;
1017         struct connman_technology *technology;
1018         GSList *list;
1019
1020         technology = technology_find(type);
1021
1022         DBG("technology %p device %p", technology, device);
1023
1024         if (!technology)
1025                 return;
1026
1027         for (list = technology->device_list; list; list = list->next) {
1028                 struct connman_device *other_device = list->data;
1029
1030                 if (device == other_device)
1031                         continue;
1032
1033                 if (__connman_device_get_service_type(other_device) != type)
1034                         continue;
1035
1036                 if (connman_device_get_scanning(other_device))
1037                         count += 1;
1038         }
1039
1040         if (count == 0)
1041                 reply_scan_pending(technology, 0);
1042 }
1043
1044 void __connman_technology_notify_regdom_by_device(struct connman_device *device,
1045                                                 int result, const char *alpha2)
1046 {
1047         bool regdom_set = false;
1048         struct connman_technology *technology;
1049         enum connman_service_type type;
1050         GSList *tech_drivers;
1051
1052         type = __connman_device_get_service_type(device);
1053         technology = technology_find(type);
1054
1055         if (!technology)
1056                 return;
1057
1058         if (result < 0) {
1059
1060                 for (tech_drivers = technology->driver_list;
1061                      tech_drivers;
1062                      tech_drivers = g_slist_next(tech_drivers)) {
1063                         struct connman_technology_driver *driver =
1064                                 tech_drivers->data;
1065
1066                         if (driver->set_regdom) {
1067                                 driver->set_regdom(technology, alpha2);
1068                                 regdom_set = true;
1069                         }
1070
1071                 }
1072
1073                 if (!regdom_set)
1074                         alpha2 = NULL;
1075         }
1076
1077         connman_technology_regdom_notify(technology, alpha2);
1078 }
1079
1080 static DBusMessage *scan(DBusConnection *conn, DBusMessage *msg, void *data)
1081 {
1082         struct connman_technology *technology = data;
1083         int err;
1084
1085         DBG("technology %p request from %s", technology,
1086                         dbus_message_get_sender(msg));
1087
1088         dbus_message_ref(msg);
1089         technology->scan_pending =
1090                 g_slist_prepend(technology->scan_pending, msg);
1091
1092         err = __connman_device_request_scan(technology->type);
1093         if (err < 0)
1094                 reply_scan_pending(technology, err);
1095
1096         return NULL;
1097 }
1098
1099 static const GDBusMethodTable technology_methods[] = {
1100         { GDBUS_DEPRECATED_METHOD("GetProperties",
1101                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
1102                         get_properties) },
1103         { GDBUS_ASYNC_METHOD("SetProperty",
1104                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
1105                         NULL, set_property) },
1106         { GDBUS_ASYNC_METHOD("Scan", NULL, NULL, scan) },
1107         { },
1108 };
1109
1110 static const GDBusSignalTable technology_signals[] = {
1111         { GDBUS_SIGNAL("PropertyChanged",
1112                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
1113         { GDBUS_SIGNAL("DhcpConnected",
1114                         GDBUS_ARGS({ "aptype", "s" },
1115                                 { "ipaddr", "s" },
1116                                 { "macaddr", "s" },
1117                                 { "hostname", "s" })) },
1118         { GDBUS_SIGNAL("DhcpLeaseDeleted",
1119                         GDBUS_ARGS({ "aptype", "s" },
1120                                 { "ipaddr", "s" },
1121                                 { "macaddr", "s" },
1122                                 { "hostname", "s" })) },
1123         { },
1124 };
1125
1126 static bool technology_dbus_register(struct connman_technology *technology)
1127 {
1128         if (technology->dbus_registered ||
1129                                 (technology->rfkill_driven &&
1130                                  technology->hardblocked))
1131                 return true;
1132
1133         if (!g_dbus_register_interface(connection, technology->path,
1134                                         CONNMAN_TECHNOLOGY_INTERFACE,
1135                                         technology_methods, technology_signals,
1136                                         NULL, technology, NULL)) {
1137                 connman_error("Failed to register %s", technology->path);
1138                 return false;
1139         }
1140
1141         technology_added_signal(technology);
1142         technology->dbus_registered = true;
1143
1144         return true;
1145 }
1146
1147 static void technology_dbus_unregister(struct connman_technology *technology)
1148 {
1149         if (!technology->dbus_registered)
1150                 return;
1151
1152         technology_removed_signal(technology);
1153         g_dbus_unregister_interface(connection, technology->path,
1154                 CONNMAN_TECHNOLOGY_INTERFACE);
1155
1156         technology->dbus_registered = false;
1157 }
1158
1159 static void technology_put(struct connman_technology *technology)
1160 {
1161         DBG("technology %p", technology);
1162
1163         if (__sync_sub_and_fetch(&technology->refcount, 1) > 0)
1164                 return;
1165
1166         reply_scan_pending(technology, -EINTR);
1167
1168         while (technology->driver_list) {
1169                 struct connman_technology_driver *driver;
1170
1171                 driver = technology->driver_list->data;
1172
1173                 if (driver->remove)
1174                         driver->remove(technology);
1175
1176                 technology->driver_list =
1177                         g_slist_delete_link(technology->driver_list,
1178                                         technology->driver_list);
1179         }
1180
1181         technology_list = g_slist_remove(technology_list, technology);
1182
1183         technology_dbus_unregister(technology);
1184
1185         g_slist_free(technology->device_list);
1186
1187         g_free(technology->path);
1188         g_free(technology->regdom);
1189         g_free(technology->tethering_ident);
1190         g_free(technology->tethering_passphrase);
1191         g_free(technology);
1192 }
1193
1194 static struct connman_technology *technology_get(enum connman_service_type type)
1195 {
1196         GSList *tech_drivers = NULL;
1197         struct connman_technology_driver *driver;
1198         struct connman_technology *technology;
1199         const char *str;
1200         GSList *list;
1201
1202         DBG("type %d", type);
1203
1204         str = __connman_service_type2string(type);
1205         if (!str)
1206                 return NULL;
1207
1208         technology = technology_find(type);
1209         if (technology) {
1210                 if (type != CONNMAN_SERVICE_TYPE_P2P)
1211                         __sync_fetch_and_add(&technology->refcount, 1);
1212                 return technology;
1213         }
1214
1215         /* First check if we have a driver for this technology type */
1216         for (list = driver_list; list; list = list->next) {
1217                 driver = list->data;
1218
1219                 if (driver->type == type) {
1220                         DBG("technology %p driver %p", technology, driver);
1221                         tech_drivers = g_slist_append(tech_drivers, driver);
1222                 }
1223         }
1224
1225         if (!tech_drivers) {
1226                 DBG("No matching drivers found for %s.",
1227                                 __connman_service_type2string(type));
1228                 return NULL;
1229         }
1230
1231         technology = g_try_new0(struct connman_technology, 1);
1232         if (!technology)
1233                 return NULL;
1234
1235         technology->refcount = 1;
1236         technology->type = type;
1237         technology->tethering_hidden = FALSE;
1238         technology->path = g_strdup_printf("%s/technology/%s",
1239                                                         CONNMAN_PATH, str);
1240         if (type == CONNMAN_SERVICE_TYPE_P2P) {
1241                 struct connman_technology *wifi;
1242
1243                 wifi = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
1244                 if (wifi)
1245                         technology->enabled = wifi->enabled;
1246         }
1247
1248         technology_load(technology);
1249         technology_list = g_slist_prepend(technology_list, technology);
1250         technology->driver_list = tech_drivers;
1251
1252         for (list = tech_drivers; list; list = list->next) {
1253                 driver = list->data;
1254
1255                 if (driver->probe && driver->probe(technology) < 0)
1256                         DBG("Driver probe failed for technology %p",
1257                                         technology);
1258         }
1259
1260         if (!technology_dbus_register(technology)) {
1261                 technology_put(technology);
1262                 return NULL;
1263         }
1264
1265         DBG("technology %p", technology);
1266
1267         return technology;
1268 }
1269
1270 int connman_technology_driver_register(struct connman_technology_driver *driver)
1271 {
1272         GSList *list;
1273         struct connman_device *device;
1274         enum connman_service_type type;
1275
1276         for (list = driver_list; list; list = list->next) {
1277                 if (list->data == driver)
1278                         goto exist;
1279         }
1280
1281         DBG("Registering %s driver", driver->name);
1282
1283         driver_list = g_slist_insert_sorted(driver_list, driver,
1284                                                         compare_priority);
1285
1286         /*
1287          * Check for technology less devices if this driver
1288          * can service any of them.
1289         */
1290         for (list = techless_device_list; list; list = list->next) {
1291                 device = list->data;
1292
1293                 type = __connman_device_get_service_type(device);
1294                 if (type != driver->type)
1295                         continue;
1296
1297                 techless_device_list = g_slist_remove(techless_device_list,
1298                                                                 device);
1299
1300                 __connman_technology_add_device(device);
1301         }
1302
1303         /* Check for orphaned rfkill switches. */
1304         g_hash_table_foreach(rfkill_list, rfkill_check,
1305                                         GINT_TO_POINTER(driver->type));
1306
1307 exist:
1308         if (driver->type == CONNMAN_SERVICE_TYPE_P2P) {
1309                 if (!technology_get(CONNMAN_SERVICE_TYPE_P2P))
1310                         return -ENOMEM;
1311         }
1312
1313         return 0;
1314 }
1315
1316 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
1317 {
1318         GSList *list, *tech_drivers;
1319         struct connman_technology *technology;
1320         struct connman_technology_driver *current;
1321
1322         DBG("Unregistering driver %p name %s", driver, driver->name);
1323
1324         for (list = technology_list; list; list = list->next) {
1325                 technology = list->data;
1326
1327                 for (tech_drivers = technology->driver_list; tech_drivers;
1328                                 tech_drivers = g_slist_next(tech_drivers)) {
1329                         current = tech_drivers->data;
1330                         if (driver != current)
1331                                 continue;
1332
1333                         if (driver->remove)
1334                                 driver->remove(technology);
1335
1336                         technology->driver_list =
1337                                 g_slist_remove(technology->driver_list,
1338                                                                 driver);
1339                         break;
1340                 }
1341         }
1342
1343         driver_list = g_slist_remove(driver_list, driver);
1344
1345         if (driver->type == CONNMAN_SERVICE_TYPE_P2P) {
1346                 technology = technology_find(CONNMAN_SERVICE_TYPE_P2P);
1347                 if (technology)
1348                         technology_put(technology);
1349         }
1350 }
1351
1352 void __connman_technology_add_interface(enum connman_service_type type,
1353                                 int index, const char *ident)
1354 {
1355         struct connman_technology *technology;
1356         GSList *tech_drivers;
1357         struct connman_technology_driver *driver;
1358         char *name;
1359
1360         switch (type) {
1361         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1362         case CONNMAN_SERVICE_TYPE_SYSTEM:
1363                 return;
1364         case CONNMAN_SERVICE_TYPE_ETHERNET:
1365         case CONNMAN_SERVICE_TYPE_WIFI:
1366         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1367         case CONNMAN_SERVICE_TYPE_CELLULAR:
1368         case CONNMAN_SERVICE_TYPE_GPS:
1369         case CONNMAN_SERVICE_TYPE_VPN:
1370         case CONNMAN_SERVICE_TYPE_GADGET:
1371         case CONNMAN_SERVICE_TYPE_P2P:
1372                 break;
1373         }
1374
1375         name = connman_inet_ifname(index);
1376         connman_info("Adding interface %s [ %s ]", name,
1377                                 __connman_service_type2string(type));
1378
1379         technology = technology_find(type);
1380
1381         if (!technology)
1382                 goto out;
1383
1384         for (tech_drivers = technology->driver_list; tech_drivers;
1385              tech_drivers = g_slist_next(tech_drivers)) {
1386                 driver = tech_drivers->data;
1387
1388                 if (driver->add_interface)
1389                         driver->add_interface(technology, index, name, ident);
1390         }
1391
1392         /*
1393          * At this point we can try to enable tethering automatically as
1394          * now the interfaces are set properly.
1395          */
1396         if (technology->tethering_persistent)
1397                 enable_tethering(technology);
1398
1399 out:
1400         g_free(name);
1401 }
1402
1403 void __connman_technology_remove_interface(enum connman_service_type type,
1404                                 int index, const char *ident)
1405 {
1406         struct connman_technology *technology;
1407         GSList *tech_drivers;
1408         struct connman_technology_driver *driver;
1409         char *name;
1410
1411         switch (type) {
1412         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1413         case CONNMAN_SERVICE_TYPE_SYSTEM:
1414                 return;
1415         case CONNMAN_SERVICE_TYPE_ETHERNET:
1416         case CONNMAN_SERVICE_TYPE_WIFI:
1417         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1418         case CONNMAN_SERVICE_TYPE_CELLULAR:
1419         case CONNMAN_SERVICE_TYPE_GPS:
1420         case CONNMAN_SERVICE_TYPE_VPN:
1421         case CONNMAN_SERVICE_TYPE_GADGET:
1422         case CONNMAN_SERVICE_TYPE_P2P:
1423                 break;
1424         }
1425
1426         name = connman_inet_ifname(index);
1427         connman_info("Remove interface %s [ %s ]", name,
1428                                 __connman_service_type2string(type));
1429         g_free(name);
1430
1431         technology = technology_find(type);
1432
1433         if (!technology)
1434                 return;
1435
1436         for (tech_drivers = technology->driver_list; tech_drivers;
1437              tech_drivers = g_slist_next(tech_drivers)) {
1438                 driver = tech_drivers->data;
1439
1440                 if (driver->remove_interface)
1441                         driver->remove_interface(technology, index);
1442         }
1443 }
1444
1445 int __connman_technology_add_device(struct connman_device *device)
1446 {
1447         struct connman_technology *technology;
1448         enum connman_service_type type;
1449
1450         type = __connman_device_get_service_type(device);
1451
1452         DBG("device %p type %s", device, get_name(type));
1453
1454         technology = technology_get(type);
1455         if (!technology) {
1456                 /*
1457                  * Since no driver can be found for this device at the moment we
1458                  * add it to the techless device list.
1459                 */
1460                 techless_device_list = g_slist_prepend(techless_device_list,
1461                                                                 device);
1462
1463                 return -ENXIO;
1464         }
1465
1466         __sync_synchronize();
1467         if (technology->rfkill_driven) {
1468                 if (technology->enabled)
1469                         __connman_device_enable(device);
1470                 else
1471                         __connman_device_disable(device);
1472
1473                 goto done;
1474         }
1475
1476         if (technology->enable_persistent &&
1477                                         !global_offlinemode) {
1478                 int err = __connman_device_enable(device);
1479                 /*
1480                  * connman_technology_add_device() calls __connman_device_enable()
1481                  * but since the device is already enabled, the calls does not
1482                  * propagate through to connman_technology_enabled via
1483                  * connman_device_set_powered.
1484                  */
1485                 if (err == -EALREADY)
1486                         __connman_technology_enabled(type);
1487         }
1488         /* if technology persistent state is offline */
1489         if (!technology->enable_persistent)
1490                 __connman_device_disable(device);
1491
1492 done:
1493         technology->device_list = g_slist_prepend(technology->device_list,
1494                                                                 device);
1495
1496         return 0;
1497 }
1498
1499 int __connman_technology_remove_device(struct connman_device *device)
1500 {
1501         struct connman_technology *technology;
1502         enum connman_service_type type;
1503
1504         DBG("device %p", device);
1505
1506         type = __connman_device_get_service_type(device);
1507
1508         technology = technology_find(type);
1509         if (!technology) {
1510                 techless_device_list = g_slist_remove(techless_device_list,
1511                                                                 device);
1512                 return -ENXIO;
1513         }
1514
1515         technology->device_list = g_slist_remove(technology->device_list,
1516                                                                 device);
1517
1518         if (technology->tethering)
1519                 set_tethering(technology, false);
1520
1521         technology_put(technology);
1522
1523         return 0;
1524 }
1525
1526 int __connman_technology_enabled(enum connman_service_type type)
1527 {
1528         struct connman_technology *technology;
1529
1530         technology = technology_find(type);
1531         if (!technology)
1532                 return -ENXIO;
1533
1534         DBG("technology %p type %s rfkill %d enabled %d", technology,
1535                 get_name(type), technology->rfkill_driven,
1536                 technology->enabled);
1537
1538         if (technology->rfkill_driven) {
1539                 if (technology->tethering_persistent)
1540                         enable_tethering(technology);
1541                 return 0;
1542         }
1543
1544         return technology_enabled(technology);
1545 }
1546
1547 int __connman_technology_disabled(enum connman_service_type type)
1548 {
1549         struct connman_technology *technology;
1550         GSList *list;
1551
1552         technology = technology_find(type);
1553         if (!technology)
1554                 return -ENXIO;
1555
1556         if (technology->rfkill_driven)
1557                 return 0;
1558
1559         for (list = technology->device_list; list; list = list->next) {
1560                 struct connman_device *device = list->data;
1561
1562                 if (connman_device_get_powered(device))
1563                         return 0;
1564         }
1565
1566         return technology_disabled(technology);
1567 }
1568
1569 int __connman_technology_set_offlinemode(bool offlinemode)
1570 {
1571         GSList *list;
1572         int err = -EINVAL, enabled_tech_count = 0;
1573
1574         if (global_offlinemode == offlinemode)
1575                 return 0;
1576
1577         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1578
1579         /*
1580          * This is a bit tricky. When you set offlinemode, there is no
1581          * way to differentiate between attempting offline mode and
1582          * resuming offlinemode from last saved profile. We need that
1583          * information in rfkill_update, otherwise it falls back on the
1584          * technology's persistent state. Hence we set the offline mode here
1585          * but save it & call the notifier only if its successful.
1586          */
1587
1588         global_offlinemode = offlinemode;
1589
1590         /* Traverse technology list, enable/disable each technology. */
1591         for (list = technology_list; list; list = list->next) {
1592                 struct connman_technology *technology = list->data;
1593
1594                 if (offlinemode)
1595                         err = technology_disable(technology);
1596                 else {
1597                         if (technology->hardblocked)
1598                                 continue;
1599
1600                         if (technology->enable_persistent) {
1601                                 err = technology_enable(technology);
1602                                 enabled_tech_count++;
1603                         }
1604                 }
1605         }
1606
1607         if (err == 0 || err == -EINPROGRESS || err == -EALREADY ||
1608                         (err == -EINVAL && enabled_tech_count == 0)) {
1609                 connman_technology_save_offlinemode();
1610                 __connman_notifier_offlinemode(offlinemode);
1611         } else
1612                 global_offlinemode = connman_technology_load_offlinemode();
1613
1614         return err;
1615 }
1616
1617 void __connman_technology_set_connected(enum connman_service_type type,
1618                 bool connected)
1619 {
1620         struct connman_technology *technology;
1621         dbus_bool_t val;
1622
1623         technology = technology_find(type);
1624         if (!technology)
1625                 return;
1626
1627         DBG("technology %p connected %d", technology, connected);
1628
1629         technology->connected = connected;
1630
1631         val = connected;
1632         connman_dbus_property_changed_basic(technology->path,
1633                         CONNMAN_TECHNOLOGY_INTERFACE, "Connected",
1634                         DBUS_TYPE_BOOLEAN, &val);
1635 }
1636
1637 static bool technology_apply_rfkill_change(struct connman_technology *technology,
1638                                                 bool softblock,
1639                                                 bool hardblock,
1640                                                 bool new_rfkill)
1641 {
1642         bool hardblock_changed = false;
1643         bool apply = true;
1644         GList *start, *list;
1645
1646         DBG("technology %p --> %d/%d vs %d/%d",
1647                         technology, softblock, hardblock,
1648                         technology->softblocked, technology->hardblocked);
1649
1650         if (technology->hardblocked == hardblock)
1651                 goto softblock_change;
1652
1653         if (!(new_rfkill && !hardblock)) {
1654                 start = g_hash_table_get_values(rfkill_list);
1655
1656                 for (list = start; list; list = list->next) {
1657                         struct connman_rfkill *rfkill = list->data;
1658
1659                         if (rfkill->type != technology->type)
1660                                 continue;
1661
1662                         if (rfkill->hardblock != hardblock)
1663                                 apply = false;
1664                 }
1665
1666                 g_list_free(start);
1667         }
1668
1669         if (!apply)
1670                 goto softblock_change;
1671
1672         technology->hardblocked = hardblock;
1673         hardblock_changed = true;
1674
1675 softblock_change:
1676         if (!apply && technology->softblocked != softblock)
1677                 apply = true;
1678
1679         if (!apply)
1680                 return technology->hardblocked;
1681
1682         technology->softblocked = softblock;
1683
1684         if (technology->hardblocked ||
1685                                         technology->softblocked) {
1686                 if (technology_disabled(technology) != -EALREADY)
1687                         technology_affect_devices(technology, false);
1688         } else if (!technology->hardblocked &&
1689                                         !technology->softblocked) {
1690                 if (technology_enabled(technology) != -EALREADY)
1691                         technology_affect_devices(technology, true);
1692         }
1693
1694         if (hardblock_changed) {
1695                 if (technology->hardblocked) {
1696                         DBG("%s is switched off.", get_name(technology->type));
1697                         technology_dbus_unregister(technology);
1698                 } else {
1699                         DBG("%s is switched on.", get_name(technology->type));
1700                         technology_dbus_register(technology);
1701
1702                         if (global_offlinemode)
1703                                 __connman_rfkill_block(technology->type, true);
1704                 }
1705         }
1706
1707         return technology->hardblocked;
1708 }
1709
1710 int __connman_technology_add_rfkill(unsigned int index,
1711                                         enum connman_service_type type,
1712                                                 bool softblock,
1713                                                 bool hardblock)
1714 {
1715         struct connman_technology *technology;
1716         struct connman_rfkill *rfkill;
1717
1718         DBG("index %u type %d soft %u hard %u", index, type,
1719                                                         softblock, hardblock);
1720
1721         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1722         if (rfkill)
1723                 goto done;
1724
1725         rfkill = g_try_new0(struct connman_rfkill, 1);
1726         if (!rfkill)
1727                 return -ENOMEM;
1728
1729         rfkill->index = index;
1730         rfkill->type = type;
1731         rfkill->softblock = softblock;
1732         rfkill->hardblock = hardblock;
1733
1734         g_hash_table_insert(rfkill_list, GINT_TO_POINTER(index), rfkill);
1735
1736 done:
1737         technology = technology_get(type);
1738         /* If there is no driver for this type, ignore it. */
1739         if (!technology)
1740                 return -ENXIO;
1741
1742         technology->rfkill_driven = true;
1743
1744         /* If hardblocked, there is no need to handle softblocked state */
1745         if (technology_apply_rfkill_change(technology,
1746                                 softblock, hardblock, true))
1747                 return 0;
1748
1749         if (global_offlinemode)
1750                 return 0;
1751
1752         /*
1753          * Depending on softblocked state we unblock/block according to
1754          * offlinemode and persistente state.
1755          */
1756         if (technology->softblocked &&
1757                                 technology->enable_persistent)
1758                 return __connman_rfkill_block(type, false);
1759         else if (!technology->softblocked &&
1760                                 !technology->enable_persistent)
1761                 return __connman_rfkill_block(type, true);
1762
1763         return 0;
1764 }
1765
1766 int __connman_technology_update_rfkill(unsigned int index,
1767                                         enum connman_service_type type,
1768                                                 bool softblock,
1769                                                 bool hardblock)
1770 {
1771         struct connman_technology *technology;
1772         struct connman_rfkill *rfkill;
1773
1774         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1775
1776         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1777         if (!rfkill)
1778                 return -ENXIO;
1779
1780         if (rfkill->softblock == softblock &&
1781                                 rfkill->hardblock == hardblock)
1782                 return 0;
1783
1784         rfkill->softblock = softblock;
1785         rfkill->hardblock = hardblock;
1786
1787         technology = technology_find(type);
1788         /* If there is no driver for this type, ignore it. */
1789         if (!technology)
1790                 return -ENXIO;
1791
1792         technology_apply_rfkill_change(technology, softblock, hardblock,
1793                                                                 false);
1794
1795         if (technology->hardblocked)
1796                 DBG("%s hardblocked", get_name(technology->type));
1797         else
1798                 DBG("%s is%s softblocked", get_name(technology->type),
1799                         technology->softblocked ? "" : " not");
1800
1801         return 0;
1802 }
1803
1804 int __connman_technology_remove_rfkill(unsigned int index,
1805                                         enum connman_service_type type)
1806 {
1807         struct connman_technology *technology;
1808         struct connman_rfkill *rfkill;
1809
1810         DBG("index %u", index);
1811
1812         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1813         if (!rfkill)
1814                 return -ENXIO;
1815
1816         g_hash_table_remove(rfkill_list, GINT_TO_POINTER(index));
1817
1818         technology = technology_find(type);
1819         if (!technology)
1820                 return -ENXIO;
1821
1822         technology_apply_rfkill_change(technology,
1823                 technology->softblocked, !technology->hardblocked, false);
1824
1825         technology_put(technology);
1826
1827         return 0;
1828 }
1829
1830 int __connman_technology_init(void)
1831 {
1832         DBG("");
1833
1834         connection = connman_dbus_get_connection();
1835
1836         rfkill_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1837                                                         NULL, free_rfkill);
1838
1839         global_offlinemode = connman_technology_load_offlinemode();
1840
1841         /* This will create settings file if it is missing */
1842         connman_technology_save_offlinemode();
1843
1844         return 0;
1845 }
1846
1847 void __connman_technology_cleanup(void)
1848 {
1849         DBG("");
1850
1851         g_hash_table_destroy(rfkill_list);
1852
1853         dbus_connection_unref(connection);
1854 }