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 int technology_enabled(struct connman_technology *technology);
  89 static int technology_disabled(struct connman_technology *technology);
  90
  91 static gint compare_priority(gconstpointer a, gconstpointer b)
  92 {
  93         const struct connman_technology_driver *driver1 = a;
  94         const struct connman_technology_driver *driver2 = b;
  95
  96         return driver2->priority - driver1->priority;
  97 }
  98
  99 static void rfkill_check(gpointer key, gpointer value, gpointer user_data)
 100 {
 101         struct connman_rfkill *rfkill = value;
 102         enum connman_service_type type = GPOINTER_TO_INT(user_data);
 103
 104         /* Calling _technology_rfkill_add will update the tech. */
 105         if (rfkill->type == type)
 106                 __connman_technology_add_rfkill(rfkill->index, type,
 107                                 rfkill->softblock, rfkill->hardblock);
 108 }
 109
 110 bool
 111 connman_technology_is_tethering_allowed(enum connman_service_type type)
 112 {
 113         static char *allowed_default[] = { "wifi", "bluetooth", "gadget",
 114                                            NULL };
 115         const char *type_str = __connman_service_type2string(type);
 116         char **allowed;
 117         int i;
 118
 119         if (!type_str)
 120                 return false;
 121
 122         allowed = connman_setting_get_string_list("TetheringTechnologies");
 123         if (!allowed)
 124                 allowed = allowed_default;
 125
 126         for (i = 0; allowed[i]; i++) {
 127                 if (g_strcmp0(allowed[i], type_str) == 0)
 128                         return true;
 129         }
 130
 131         return false;
 132 }
 133
 134 static const char *get_name(enum connman_service_type type)
 135 {
 136         switch (type) {
 137         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 138         case CONNMAN_SERVICE_TYPE_SYSTEM:
 139         case CONNMAN_SERVICE_TYPE_GPS:
 140         case CONNMAN_SERVICE_TYPE_VPN:
 141                 break;
 142         case CONNMAN_SERVICE_TYPE_GADGET:
 143                 return "Gadget";
 144         case CONNMAN_SERVICE_TYPE_ETHERNET:
 145                 return "Wired";
 146         case CONNMAN_SERVICE_TYPE_WIFI:
 147                 return "WiFi";
 148         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 149                 return "Bluetooth";
 150         case CONNMAN_SERVICE_TYPE_CELLULAR:
 151                 return "Cellular";
 152         case CONNMAN_SERVICE_TYPE_P2P:
 153                 return "P2P";
 154         }
 155
 156         return NULL;
 157 }
 158
 159 static void technology_save(struct connman_technology *technology)
 160 {
 161         GKeyFile *keyfile;
 162         gchar *identifier;
 163         const char *name = get_name(technology->type);
 164
 165         DBG("technology %p type %d name %s", technology, technology->type,
 166                                                                         name);
 167         if (!name)
 168                 return;
 169
 170         keyfile = __connman_storage_load_global();
 171         if (!keyfile)
 172                 keyfile = g_key_file_new();
 173
 174         identifier = g_strdup_printf("%s", name);
 175         if (!identifier)
 176                 goto done;
 177
 178         g_key_file_set_boolean(keyfile, identifier, "Enable",
 179                                 technology->enable_persistent);
 180
 181         g_key_file_set_boolean(keyfile, identifier, "Tethering",
 182                                 technology->tethering_persistent);
 183
 184         g_key_file_set_boolean(keyfile, identifier, "Hidden",
 185                                 technology->tethering_hidden);
 186
 187         if (technology->tethering_ident)
 188                 g_key_file_set_string(keyfile, identifier,
 189                                         "Tethering.Identifier",
 190                                         technology->tethering_ident);
 191
 192         if (technology->tethering_passphrase)
 193                 g_key_file_set_string(keyfile, identifier,
 194                                         "Tethering.Passphrase",
 195                                         technology->tethering_passphrase);
 196
 197 done:
 198         g_free(identifier);
 199
 200         __connman_storage_save_global(keyfile);
 201
 202         g_key_file_free(keyfile);
 203
 204         return;
 205 }
 206
 207 static void tethering_changed(struct connman_technology *technology)
 208 {
 209         dbus_bool_t tethering = technology->tethering;
 210
 211         connman_dbus_property_changed_basic(technology->path,
 212                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 213                                                 DBUS_TYPE_BOOLEAN, &tethering);
 214
 215         technology_save(technology);
 216 }
 217
 218 void connman_technology_tethering_notify(struct connman_technology *technology,
 219                                                         bool enabled)
 220 {
 221         DBG("technology %p enabled %u", technology, enabled);
 222
 223         if (technology->tethering == enabled)
 224                 return;
 225
 226         technology->tethering = enabled;
 227
 228         tethering_changed(technology);
 229
 230         if (enabled)
 231                 __connman_tethering_set_enabled();
 232         else
 233                 __connman_tethering_set_disabled();
 234 }
 235
 236 static int set_tethering(struct connman_technology *technology,
 237                                 bool enabled)
 238 {
 239         int result = -EOPNOTSUPP;
 240         int err;
 241         const char *ident, *passphrase, *bridge;
 242         GSList *tech_drivers;
 243         bool hidden;
 244
 245         ident = technology->tethering_ident;
 246         passphrase = technology->tethering_passphrase;
 247         hidden = technology->tethering_hidden;
 248
 249         __sync_synchronize();
 250         if (!technology->enabled)
 251                 return -EACCES;
 252
 253         bridge = __connman_tethering_get_bridge();
 254         if (!bridge)
 255                 return -EOPNOTSUPP;
 256
 257         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI && (!ident))
 258                 return -EINVAL;
 259
 260         for (tech_drivers = technology->driver_list; tech_drivers;
 261              tech_drivers = g_slist_next(tech_drivers)) {
 262                 struct connman_technology_driver *driver = tech_drivers->data;
 263
 264                 if (!driver || !driver->set_tethering)
 265                         continue;
 266
 267                 err = driver->set_tethering(technology, ident, passphrase,
 268                                 bridge, enabled, hidden);
 269
 270                 if (result == -EINPROGRESS)
 271                         continue;
 272
 273                 if (err == -EINPROGRESS || err == 0) {
 274                         result = err;
 275                         continue;
 276                 }
 277         }
 278
 279         return result;
 280 }
 281
 282 void connman_technology_regdom_notify(struct connman_technology *technology,
 283                                                         const char *alpha2)
 284 {
 285         DBG("");
 286
 287         if (!alpha2)
 288                 connman_error("Failed to set regulatory domain");
 289         else
 290                 DBG("Regulatory domain set to %s", alpha2);
 291
 292         g_free(technology->regdom);
 293         technology->regdom = g_strdup(alpha2);
 294 }
 295
 296 static int set_regdom_by_device(struct connman_technology *technology,
 297                                                         const char *alpha2)
 298 {
 299         GSList *list;
 300
 301         for (list = technology->device_list; list; list = list->next) {
 302                 struct connman_device *device = list->data;
 303
 304                 if (connman_device_set_regdom(device, alpha2) != 0)
 305                         return -ENOTSUP;
 306         }
 307
 308         return 0;
 309 }
 310
 311 int connman_technology_set_regdom(const char *alpha2)
 312 {
 313         GSList *list, *tech_drivers;
 314
 315         for (list = technology_list; list; list = list->next) {
 316                 struct connman_technology *technology = list->data;
 317
 318                 if (set_regdom_by_device(technology, alpha2) != 0) {
 319
 320                         for (tech_drivers = technology->driver_list;
 321                              tech_drivers;
 322                              tech_drivers = g_slist_next(tech_drivers)) {
 323
 324                                 struct connman_technology_driver *driver =
 325                                         tech_drivers->data;
 326
 327                                 if (driver->set_regdom)
 328                                         driver->set_regdom(technology, alpha2);
 329                         }
 330                 }
 331         }
 332
 333         return 0;
 334 }
 335
 336 static struct connman_technology *technology_find(enum connman_service_type type)
 337 {
 338         GSList *list;
 339
 340         DBG("type %d", type);
 341
 342         for (list = technology_list; list; list = list->next) {
 343                 struct connman_technology *technology = list->data;
 344
 345                 if (technology->type == type)
 346                         return technology;
 347         }
 348
 349         return NULL;
 350 }
 351
 352 bool connman_technology_get_wifi_tethering(const char **ssid,
 353                                                         const char **psk)
 354 {
 355         struct connman_technology *technology;
 356
 357         if (!ssid || !psk)
 358                 return false;
 359
 360         *ssid = *psk = NULL;
 361
 362         technology = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
 363         if (!technology)
 364                 return false;
 365
 366         if (!technology->tethering)
 367                 return false;
 368
 369         *ssid = technology->tethering_ident;
 370         *psk = technology->tethering_passphrase;
 371
 372         return true;
 373 }
 374
 375 static void free_rfkill(gpointer data)
 376 {
 377         struct connman_rfkill *rfkill = data;
 378
 379         g_free(rfkill);
 380 }
 381
 382 static void technology_load(struct connman_technology *technology)
 383 {
 384         GKeyFile *keyfile;
 385         gchar *identifier;
 386         GError *error = NULL;
 387         bool enable, need_saving = false;
 388
 389         DBG("technology %p", technology);
 390
 391         keyfile = __connman_storage_load_global();
 392         /* Fallback on disabling technology if file not found. */
 393         if (!keyfile) {
 394                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 395                         /* We enable ethernet by default */
 396                         technology->enable_persistent = true;
 397                 else
 398                         technology->enable_persistent = false;
 399                 return;
 400         }
 401
 402         identifier = g_strdup_printf("%s", get_name(technology->type));
 403         if (!identifier)
 404                 goto done;
 405
 406         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 407         if (!error)
 408                 technology->enable_persistent = enable;
 409         else {
 410                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 411                         technology->enable_persistent = true;
 412                 else
 413                         technology->enable_persistent = false;
 414
 415                 need_saving = true;
 416                 g_clear_error(&error);
 417         }
 418
 419         enable = g_key_file_get_boolean(keyfile, identifier,
 420                                         "Tethering", &error);
 421         if (!error)
 422                 technology->tethering_persistent = enable;
 423         else {
 424                 need_saving = true;
 425                 g_clear_error(&error);
 426         }
 427
 428         if (need_saving)
 429                 technology_save(technology);
 430
 431         technology->tethering_ident = g_key_file_get_string(keyfile,
 432                                 identifier, "Tethering.Identifier", NULL);
 433
 434         technology->tethering_passphrase = g_key_file_get_string(keyfile,
 435                                 identifier, "Tethering.Passphrase", NULL);
 436 done:
 437         g_free(identifier);
 438
 439         g_key_file_free(keyfile);
 440
 441         return;
 442 }
 443
 444 bool __connman_technology_get_offlinemode(void)
 445 {
 446         return global_offlinemode;
 447 }
 448
 449 static void connman_technology_save_offlinemode(void)
 450 {
 451         GKeyFile *keyfile;
 452
 453         keyfile = __connman_storage_load_global();
 454         if (!keyfile)
 455                 keyfile = g_key_file_new();
 456
 457         g_key_file_set_boolean(keyfile, "global",
 458                                         "OfflineMode", global_offlinemode);
 459
 460         __connman_storage_save_global(keyfile);
 461
 462         g_key_file_free(keyfile);
 463
 464         return;
 465 }
 466
 467 static bool connman_technology_load_offlinemode(void)
 468 {
 469         GKeyFile *keyfile;
 470         GError *error = NULL;
 471         bool offlinemode;
 472
 473         /* If there is a error, we enable offlinemode */
 474         keyfile = __connman_storage_load_global();
 475         if (!keyfile)
 476                 return false;
 477
 478         offlinemode = g_key_file_get_boolean(keyfile, "global",
 479                                                 "OfflineMode", &error);
 480         if (error) {
 481                 offlinemode = false;
 482                 g_clear_error(&error);
 483         }
 484
 485         g_key_file_free(keyfile);
 486
 487         return offlinemode;
 488 }
 489
 490 static void append_properties(DBusMessageIter *iter,
 491                 struct connman_technology *technology)
 492 {
 493         DBusMessageIter dict;
 494         dbus_bool_t val;
 495         const char *str;
 496
 497         connman_dbus_dict_open(iter, &dict);
 498
 499         str = get_name(technology->type);
 500         if (str)
 501                 connman_dbus_dict_append_basic(&dict, "Name",
 502                                                 DBUS_TYPE_STRING, &str);
 503
 504         str = __connman_service_type2string(technology->type);
 505         if (str)
 506                 connman_dbus_dict_append_basic(&dict, "Type",
 507                                                 DBUS_TYPE_STRING, &str);
 508
 509         __sync_synchronize();
 510         val = technology->enabled;
 511         connman_dbus_dict_append_basic(&dict, "Powered",
 512                                         DBUS_TYPE_BOOLEAN,
 513                                         &val);
 514
 515         val = technology->connected;
 516         connman_dbus_dict_append_basic(&dict, "Connected",
 517                                         DBUS_TYPE_BOOLEAN,
 518                                         &val);
 519
 520         val = technology->tethering;
 521         connman_dbus_dict_append_basic(&dict, "Tethering",
 522                                         DBUS_TYPE_BOOLEAN,
 523                                         &val);
 524
 525         if (technology->tethering_ident)
 526                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 527                                         DBUS_TYPE_STRING,
 528                                         &technology->tethering_ident);
 529
 530         if (technology->tethering_passphrase)
 531                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 532                                         DBUS_TYPE_STRING,
 533                                         &technology->tethering_passphrase);
 534
 535         val = technology->tethering_hidden;
 536         connman_dbus_dict_append_basic(&dict, "Hidden",
 537                                         DBUS_TYPE_BOOLEAN,
 538                                         &val);
 539
 540         connman_dbus_dict_close(iter, &dict);
 541 }
 542
 543 static void technology_added_signal(struct connman_technology *technology)
 544 {
 545         DBusMessage *signal;
 546         DBusMessageIter iter;
 547
 548         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 549                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 550         if (!signal)
 551                 return;
 552
 553         dbus_message_iter_init_append(signal, &iter);
 554         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 555                                                         &technology->path);
 556         append_properties(&iter, technology);
 557
 558         dbus_connection_send(connection, signal, NULL);
 559         dbus_message_unref(signal);
 560 }
 561
 562 static void technology_removed_signal(struct connman_technology *technology)
 563 {
 564         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 565                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 566                         DBUS_TYPE_OBJECT_PATH, &technology->path,
 567                         DBUS_TYPE_INVALID);
 568 }
 569
 570 static DBusMessage *get_properties(DBusConnection *conn,
 571                                         DBusMessage *message, void *user_data)
 572 {
 573         struct connman_technology *technology = user_data;
 574         DBusMessage *reply;
 575         DBusMessageIter iter;
 576
 577         reply = dbus_message_new_method_return(message);
 578         if (!reply)
 579                 return NULL;
 580
 581         dbus_message_iter_init_append(reply, &iter);
 582         append_properties(&iter, technology);
 583
 584         return reply;
 585 }
 586
 587 void __connman_technology_list_struct(DBusMessageIter *array)
 588 {
 589         GSList *list;
 590         DBusMessageIter entry;
 591
 592         for (list = technology_list; list; list = list->next) {
 593                 struct connman_technology *technology = list->data;
 594
 595                 if (!technology->path ||
 596                                 (technology->rfkill_driven &&
 597                                  technology->hardblocked))
 598                         continue;
 599
 600                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 601                                 NULL, &entry);
 602                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 603                                 &technology->path);
 604                 append_properties(&entry, technology);
 605                 dbus_message_iter_close_container(array, &entry);
 606         }
 607 }
 608
 609 static gboolean technology_pending_reply(gpointer user_data)
 610 {
 611         struct connman_technology *technology = user_data;
 612         DBusMessage *reply;
 613
 614         /* Power request timedout, send ETIMEDOUT. */
 615         if (technology->pending_reply) {
 616                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 617                 if (reply)
 618                         g_dbus_send_message(connection, reply);
 619
 620                 dbus_message_unref(technology->pending_reply);
 621                 technology->pending_reply = NULL;
 622                 technology->pending_timeout = 0;
 623         }
 624
 625         return FALSE;
 626 }
 627
 628 static int technology_affect_devices(struct connman_technology *technology,
 629                                                 bool enable_device)
 630 {
 631         int err = 0, err_dev;
 632         GSList *list;
 633
 634         if (technology->type == CONNMAN_SERVICE_TYPE_P2P) {
 635                 if (enable_device)
 636                         __connman_technology_enabled(technology->type);
 637                 else
 638                         __connman_technology_disabled(technology->type);
 639                 return 0;
 640         }
 641
 642         for (list = technology->device_list; list; list = list->next) {
 643                 struct connman_device *device = list->data;
 644
 645                 if (enable_device)
 646                         err_dev = __connman_device_enable(device);
 647                 else
 648                         err_dev = __connman_device_disable(device);
 649
 650                 if (err_dev < 0 && err_dev != -EALREADY)
 651                         err = err_dev;
 652         }
 653
 654         return err;
 655 }
 656
 657 static void powered_changed(struct connman_technology *technology)
 658 {
 659         dbus_bool_t enabled;
 660
 661         if (!technology->dbus_registered)
 662                 return;
 663
 664         if (technology->pending_reply) {
 665                 g_dbus_send_reply(connection,
 666                                 technology->pending_reply, DBUS_TYPE_INVALID);
 667                 dbus_message_unref(technology->pending_reply);
 668                 technology->pending_reply = NULL;
 669
 670                 g_source_remove(technology->pending_timeout);
 671                 technology->pending_timeout = 0;
 672         }
 673
 674         __sync_synchronize();
 675         enabled = technology->enabled;
 676         connman_dbus_property_changed_basic(technology->path,
 677                         CONNMAN_TECHNOLOGY_INTERFACE, "Powered",
 678                         DBUS_TYPE_BOOLEAN, &enabled);
 679 }
 680
 681 static void enable_tethering(struct connman_technology *technology)
 682 {
 683         int ret;
 684
 685         if (!connman_setting_get_bool("PersistentTetheringMode"))
 686                 return;
 687
 688         ret = set_tethering(technology, true);
 689         if (ret < 0 && ret != -EALREADY)
 690                 DBG("Cannot enable tethering yet for %s (%d/%s)",
 691                         get_name(technology->type),
 692                         -ret, strerror(-ret));
 693 }
 694
 695 static int technology_enabled(struct connman_technology *technology)
 696 {
 697         __sync_synchronize();
 698         if (technology->enabled)
 699                 return -EALREADY;
 700
 701         technology->enabled = true;
 702
 703         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI) {
 704                 struct connman_technology *p2p;
 705
 706                 p2p = technology_find(CONNMAN_SERVICE_TYPE_P2P);
 707                 if (p2p && !p2p->enabled && p2p->enable_persistent)
 708                         technology_enabled(p2p);
 709         }
 710
 711         if (technology->tethering_persistent)
 712                 enable_tethering(technology);
 713
 714         powered_changed(technology);
 715
 716         return 0;
 717 }
 718
 719 static int technology_enable(struct connman_technology *technology)
 720 {
 721         int err = 0;
 722         int err_dev;
 723
 724         DBG("technology %p enable", technology);
 725
 726         __sync_synchronize();
 727
 728         if (technology->type == CONNMAN_SERVICE_TYPE_P2P) {
 729                 struct connman_technology *wifi;
 730
 731                 wifi = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
 732                 if (wifi && wifi->enabled)
 733                         return technology_enabled(technology);
 734                 return 0;
 735         }
 736
 737         if (technology->enabled)
 738                 return -EALREADY;
 739
 740         if (technology->pending_reply)
 741                 return -EBUSY;
 742
 743         if (connman_setting_get_bool("PersistentTetheringMode") &&
 744                                         technology->tethering)
 745                 set_tethering(technology, true);
 746
 747         if (technology->rfkill_driven)
 748                 err = __connman_rfkill_block(technology->type, false);
 749
 750         err_dev = technology_affect_devices(technology, true);
 751
 752         if (!technology->rfkill_driven)
 753                 err = err_dev;
 754
 755         return err;
 756 }
 757
 758 static int technology_disabled(struct connman_technology *technology)
 759 {
 760         __sync_synchronize();
 761         if (!technology->enabled)
 762                 return -EALREADY;
 763
 764         technology->enabled = false;
 765
 766         powered_changed(technology);
 767
 768         return 0;
 769 }
 770
 771 static int technology_disable(struct connman_technology *technology)
 772 {
 773         int err;
 774
 775         DBG("technology %p disable", technology);
 776
 777         __sync_synchronize();
 778
 779         if (technology->type == CONNMAN_SERVICE_TYPE_P2P) {
 780                 technology->enable_persistent = false;
 781                 return technology_disabled(technology);
 782         } else if (technology->type == CONNMAN_SERVICE_TYPE_WIFI) {
 783                 struct connman_technology *p2p;
 784
 785                 p2p = technology_find(CONNMAN_SERVICE_TYPE_P2P);
 786                 if (p2p && p2p->enabled) {
 787                         p2p->enable_persistent = true;
 788                         technology_disabled(p2p);
 789                 }
 790         }
 791
 792         if (!technology->enabled)
 793                 return -EALREADY;
 794
 795         if (technology->pending_reply)
 796                 return -EBUSY;
 797
 798         if (technology->tethering)
 799                 set_tethering(technology, false);
 800
 801         err = technology_affect_devices(technology, false);
 802
 803         if (technology->rfkill_driven)
 804                 err = __connman_rfkill_block(technology->type, true);
 805
 806         return err;
 807 }
 808
 809 static DBusMessage *set_powered(struct connman_technology *technology,
 810                                 DBusMessage *msg, bool powered)
 811 {
 812         DBusMessage *reply = NULL;
 813         int err = 0;
 814
 815         if (technology->rfkill_driven && technology->hardblocked) {
 816                 err = -EACCES;
 817                 goto make_reply;
 818         }
 819
 820         if (powered)
 821                 err = technology_enable(technology);
 822         else
 823                 err = technology_disable(technology);
 824
 825         if (err != -EBUSY) {
 826                 technology->enable_persistent = powered;
 827                 technology_save(technology);
 828         }
 829
 830 make_reply:
 831         if (err == -EINPROGRESS) {
 832                 technology->pending_reply = dbus_message_ref(msg);
 833                 technology->pending_timeout = g_timeout_add_seconds(10,
 834                                         technology_pending_reply, technology);
 835         } else if (err == -EALREADY) {
 836                 if (powered)
 837                         reply = __connman_error_already_enabled(msg);
 838                 else
 839                         reply = __connman_error_already_disabled(msg);
 840         } else if (err < 0)
 841                 reply = __connman_error_failed(msg, -err);
 842         else
 843                 reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 844
 845         return reply;
 846 }
 847
 848 static DBusMessage *set_property(DBusConnection *conn,
 849                                         DBusMessage *msg, void *data)
 850 {
 851         struct connman_technology *technology = data;
 852         DBusMessageIter iter, value;
 853         const char *name;
 854         int type;
 855
 856         DBG("conn %p", conn);
 857
 858         if (!dbus_message_iter_init(msg, &iter))
 859                 return __connman_error_invalid_arguments(msg);
 860
 861         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 862                 return __connman_error_invalid_arguments(msg);
 863
 864         dbus_message_iter_get_basic(&iter, &name);
 865         dbus_message_iter_next(&iter);
 866
 867         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 868                 return __connman_error_invalid_arguments(msg);
 869
 870         dbus_message_iter_recurse(&iter, &value);
 871
 872         type = dbus_message_iter_get_arg_type(&value);
 873
 874         DBG("property %s", name);
 875
 876         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI && technology->connected) {
 877                 uid_t uid;
 878                 if (connman_dbus_get_connection_unix_user_sync(conn,
 879                                                 dbus_message_get_sender(msg),
 880                                                 &uid) < 0) {
 881                         DBG("Can not get unix user id!");
 882                         return __connman_error_permission_denied(msg);
 883                 }
 884
 885                 if (!__connman_service_is_user_allowed(CONNMAN_SERVICE_TYPE_WIFI, uid)) {
 886                         DBG("Not allow this user to operate wifi technology now!");
 887                         return __connman_error_permission_denied(msg);
 888                 }
 889         }
 890
 891         if (g_str_equal(name, "Tethering")) {
 892                 dbus_bool_t tethering;
 893                 int err;
 894
 895                 if (type != DBUS_TYPE_BOOLEAN)
 896                         return __connman_error_invalid_arguments(msg);
 897
 898                 if (!connman_technology_is_tethering_allowed(technology->type)) {
 899                         DBG("%s tethering not allowed by config file",
 900                                 __connman_service_type2string(technology->type));
 901                         return __connman_error_not_supported(msg);
 902                 }
 903
 904                 dbus_message_iter_get_basic(&value, &tethering);
 905
 906                 if (technology->tethering == tethering) {
 907                         if (!tethering)
 908                                 return __connman_error_already_disabled(msg);
 909                         else
 910                                 return __connman_error_already_enabled(msg);
 911                 }
 912
 913                 err = set_tethering(technology, tethering);
 914                 if (err < 0)
 915                         return __connman_error_failed(msg, -err);
 916
 917                 technology->tethering_persistent = tethering;
 918
 919                 technology_save(technology);
 920
 921         } else if (g_str_equal(name, "TetheringIdentifier")) {
 922                 const char *str;
 923
 924                 dbus_message_iter_get_basic(&value, &str);
 925
 926                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 927                         return __connman_error_not_supported(msg);
 928
 929                 if (strlen(str) < 1 || strlen(str) > 32)
 930                         return __connman_error_invalid_arguments(msg);
 931
 932                 if (g_strcmp0(technology->tethering_ident, str) != 0) {
 933                         g_free(technology->tethering_ident);
 934                         technology->tethering_ident = g_strdup(str);
 935                         technology_save(technology);
 936
 937                         connman_dbus_property_changed_basic(technology->path,
 938                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 939                                                 "TetheringIdentifier",
 940                                                 DBUS_TYPE_STRING,
 941                                                 &technology->tethering_ident);
 942                 }
 943         } else if (g_str_equal(name, "TetheringPassphrase")) {
 944                 const char *str;
 945
 946                 dbus_message_iter_get_basic(&value, &str);
 947
 948                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 949                         return __connman_error_not_supported(msg);
 950
 951                 if (strlen(str) < 8 || strlen(str) > 63) {
 952                         if (g_str_equal(str, "")) {
 953                                 technology->tethering_passphrase = NULL;
 954
 955                                 connman_dbus_property_changed_basic(technology->path,
 956                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 957                                                 "TetheringPassphrase",
 958                                                 DBUS_TYPE_STRING,
 959                                                 &str);
 960                         }
 961                         else
 962                                 return __connman_error_passphrase_required(msg);
 963                 } else {
 964                         if (g_strcmp0(technology->tethering_passphrase, str) != 0) {
 965                                 g_free(technology->tethering_passphrase);
 966                                 technology->tethering_passphrase = g_strdup(str);
 967                                 technology_save(technology);
 968
 969                                 connman_dbus_property_changed_basic(technology->path,
 970                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 971                                                 "TetheringPassphrase",
 972                                                 DBUS_TYPE_STRING,
 973                                                 &technology->tethering_passphrase);
 974                         }
 975                 }
 976         } else if (g_str_equal(name, "Hidden")) {
 977                 dbus_bool_t hidden;
 978
 979                 if (type != DBUS_TYPE_BOOLEAN)
 980                         return __connman_error_invalid_arguments(msg);
 981
 982                 dbus_message_iter_get_basic(&value, &hidden);
 983
 984                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 985                         return __connman_error_not_supported(msg);
 986
 987                 technology->tethering_hidden = hidden;
 988                 technology_save(technology);
 989
 990                 connman_dbus_property_changed_basic(technology->path,
 991                                         CONNMAN_TECHNOLOGY_INTERFACE,
 992                                         "Hidden",
 993                                         DBUS_TYPE_BOOLEAN,
 994                                         &hidden);
 995         } else if (g_str_equal(name, "Powered")) {
 996                 dbus_bool_t enable;
 997
 998                 if (type != DBUS_TYPE_BOOLEAN)
 999                         return __connman_error_invalid_arguments(msg);
1000
1001                 dbus_message_iter_get_basic(&value, &enable);
1002
1003                 return set_powered(technology, msg, enable);
1004         } else
1005                 return __connman_error_invalid_property(msg);
1006
1007         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
1008 }
1009
1010 static void reply_scan_pending(struct connman_technology *technology, int err)
1011 {
1012         DBusMessage *reply;
1013
1014         DBG("technology %p err %d", technology, err);
1015
1016         while (technology->scan_pending) {
1017                 DBusMessage *msg = technology->scan_pending->data;
1018
1019                 DBG("reply to %s", dbus_message_get_sender(msg));
1020
1021                 if (err == 0)
1022                         reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
1023                 else
1024                         reply = __connman_error_failed(msg, -err);
1025                 g_dbus_send_message(connection, reply);
1026                 dbus_message_unref(msg);
1027
1028                 technology->scan_pending =
1029                         g_slist_delete_link(technology->scan_pending,
1030                                         technology->scan_pending);
1031         }
1032 }
1033
1034 void __connman_technology_scan_started(struct connman_device *device)
1035 {
1036         DBG("device %p", device);
1037 }
1038
1039 void __connman_technology_scan_stopped(struct connman_device *device,
1040                                         enum connman_service_type type)
1041 {
1042         int count = 0;
1043         struct connman_technology *technology;
1044         GSList *list;
1045
1046         technology = technology_find(type);
1047
1048         DBG("technology %p device %p", technology, device);
1049
1050         if (!technology)
1051                 return;
1052
1053         for (list = technology->device_list; list; list = list->next) {
1054                 struct connman_device *other_device = list->data;
1055
1056                 if (device == other_device)
1057                         continue;
1058
1059                 if (__connman_device_get_service_type(other_device) != type)
1060                         continue;
1061
1062                 if (connman_device_get_scanning(other_device))
1063                         count += 1;
1064         }
1065
1066         if (count == 0)
1067                 reply_scan_pending(technology, 0);
1068 }
1069
1070 void __connman_technology_notify_regdom_by_device(struct connman_device *device,
1071                                                 int result, const char *alpha2)
1072 {
1073         bool regdom_set = false;
1074         struct connman_technology *technology;
1075         enum connman_service_type type;
1076         GSList *tech_drivers;
1077
1078         type = __connman_device_get_service_type(device);
1079         technology = technology_find(type);
1080
1081         if (!technology)
1082                 return;
1083
1084         if (result < 0) {
1085
1086                 for (tech_drivers = technology->driver_list;
1087                      tech_drivers;
1088                      tech_drivers = g_slist_next(tech_drivers)) {
1089                         struct connman_technology_driver *driver =
1090                                 tech_drivers->data;
1091
1092                         if (driver->set_regdom) {
1093                                 driver->set_regdom(technology, alpha2);
1094                                 regdom_set = true;
1095                         }
1096
1097                 }
1098
1099                 if (!regdom_set)
1100                         alpha2 = NULL;
1101         }
1102
1103         connman_technology_regdom_notify(technology, alpha2);
1104 }
1105
1106 static DBusMessage *scan(DBusConnection *conn, DBusMessage *msg, void *data)
1107 {
1108         struct connman_technology *technology = data;
1109         int err;
1110
1111         DBG("technology %p request from %s", technology,
1112                         dbus_message_get_sender(msg));
1113
1114         dbus_message_ref(msg);
1115         technology->scan_pending =
1116                 g_slist_prepend(technology->scan_pending, msg);
1117
1118         err = __connman_device_request_scan(technology->type);
1119         if (err < 0)
1120                 reply_scan_pending(technology, err);
1121
1122         return NULL;
1123 }
1124
1125 static const GDBusMethodTable technology_methods[] = {
1126         { GDBUS_DEPRECATED_METHOD("GetProperties",
1127                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
1128                         get_properties) },
1129         { GDBUS_ASYNC_METHOD("SetProperty",
1130                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
1131                         NULL, set_property) },
1132         { GDBUS_ASYNC_METHOD("Scan", NULL, NULL, scan) },
1133         { },
1134 };
1135
1136 static const GDBusSignalTable technology_signals[] = {
1137         { GDBUS_SIGNAL("PropertyChanged",
1138                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
1139         { GDBUS_SIGNAL("DhcpConnected",
1140                         GDBUS_ARGS({ "aptype", "s" },
1141                                 { "ipaddr", "s" },
1142                                 { "macaddr", "s" },
1143                                 { "hostname", "s" })) },
1144         { GDBUS_SIGNAL("DhcpLeaseDeleted",
1145                         GDBUS_ARGS({ "aptype", "s" },
1146                                 { "ipaddr", "s" },
1147                                 { "macaddr", "s" },
1148                                 { "hostname", "s" })) },
1149         { },
1150 };
1151
1152 static bool technology_dbus_register(struct connman_technology *technology)
1153 {
1154         if (technology->dbus_registered ||
1155                                 (technology->rfkill_driven &&
1156                                  technology->hardblocked))
1157                 return true;
1158
1159         if (!g_dbus_register_interface(connection, technology->path,
1160                                         CONNMAN_TECHNOLOGY_INTERFACE,
1161                                         technology_methods, technology_signals,
1162                                         NULL, technology, NULL)) {
1163                 connman_error("Failed to register %s", technology->path);
1164                 return false;
1165         }
1166
1167         technology_added_signal(technology);
1168         technology->dbus_registered = true;
1169
1170         return true;
1171 }
1172
1173 static void technology_dbus_unregister(struct connman_technology *technology)
1174 {
1175         if (!technology->dbus_registered)
1176                 return;
1177
1178         technology_removed_signal(technology);
1179         g_dbus_unregister_interface(connection, technology->path,
1180                 CONNMAN_TECHNOLOGY_INTERFACE);
1181
1182         technology->dbus_registered = false;
1183 }
1184
1185 static void technology_put(struct connman_technology *technology)
1186 {
1187         DBG("technology %p", technology);
1188
1189         if (__sync_sub_and_fetch(&technology->refcount, 1) > 0)
1190                 return;
1191
1192         reply_scan_pending(technology, -EINTR);
1193
1194         while (technology->driver_list) {
1195                 struct connman_technology_driver *driver;
1196
1197                 driver = technology->driver_list->data;
1198
1199                 if (driver->remove)
1200                         driver->remove(technology);
1201
1202                 technology->driver_list =
1203                         g_slist_delete_link(technology->driver_list,
1204                                         technology->driver_list);
1205         }
1206
1207         technology_list = g_slist_remove(technology_list, technology);
1208
1209         technology_dbus_unregister(technology);
1210
1211         g_slist_free(technology->device_list);
1212
1213         g_free(technology->path);
1214         g_free(technology->regdom);
1215         g_free(technology->tethering_ident);
1216         g_free(technology->tethering_passphrase);
1217         g_free(technology);
1218 }
1219
1220 static struct connman_technology *technology_get(enum connman_service_type type)
1221 {
1222         GSList *tech_drivers = NULL;
1223         struct connman_technology_driver *driver;
1224         struct connman_technology *technology;
1225         const char *str;
1226         GSList *list;
1227
1228         DBG("type %d", type);
1229
1230         str = __connman_service_type2string(type);
1231         if (!str)
1232                 return NULL;
1233
1234         technology = technology_find(type);
1235         if (technology) {
1236                 if (type != CONNMAN_SERVICE_TYPE_P2P)
1237                         __sync_fetch_and_add(&technology->refcount, 1);
1238                 return technology;
1239         }
1240
1241         /* First check if we have a driver for this technology type */
1242         for (list = driver_list; list; list = list->next) {
1243                 driver = list->data;
1244
1245                 if (driver->type == type) {
1246                         DBG("technology %p driver %p", technology, driver);
1247                         tech_drivers = g_slist_append(tech_drivers, driver);
1248                 }
1249         }
1250
1251         if (!tech_drivers) {
1252                 DBG("No matching drivers found for %s.",
1253                                 __connman_service_type2string(type));
1254                 return NULL;
1255         }
1256
1257         technology = g_try_new0(struct connman_technology, 1);
1258         if (!technology)
1259                 return NULL;
1260
1261         technology->refcount = 1;
1262         technology->type = type;
1263         technology->tethering_hidden = FALSE;
1264         technology->path = g_strdup_printf("%s/technology/%s",
1265                                                         CONNMAN_PATH, str);
1266
1267         technology_load(technology);
1268         technology_list = g_slist_prepend(technology_list, technology);
1269         technology->driver_list = tech_drivers;
1270
1271         for (list = tech_drivers; list; list = list->next) {
1272                 driver = list->data;
1273
1274                 if (driver->probe && driver->probe(technology) < 0)
1275                         DBG("Driver probe failed for technology %p",
1276                                         technology);
1277         }
1278
1279         if (!technology_dbus_register(technology)) {
1280                 technology_put(technology);
1281                 return NULL;
1282         }
1283
1284         if (type == CONNMAN_SERVICE_TYPE_P2P) {
1285                 struct connman_technology *wifi;
1286                 bool enable;
1287
1288                 enable = technology->enable_persistent;
1289
1290                 wifi = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
1291                 if (enable && wifi)
1292                         enable = wifi->enabled;
1293
1294                 technology_affect_devices(technology, enable);
1295         }
1296
1297         DBG("technology %p %s", technology, get_name(technology->type));
1298
1299         return technology;
1300 }
1301
1302 int connman_technology_driver_register(struct connman_technology_driver *driver)
1303 {
1304         GSList *list;
1305         struct connman_device *device;
1306         enum connman_service_type type;
1307
1308         for (list = driver_list; list; list = list->next) {
1309                 if (list->data == driver)
1310                         goto exist;
1311         }
1312
1313         DBG("Registering %s driver", driver->name);
1314
1315         driver_list = g_slist_insert_sorted(driver_list, driver,
1316                                                         compare_priority);
1317
1318         /*
1319          * Check for technology less devices if this driver
1320          * can service any of them.
1321         */
1322         for (list = techless_device_list; list; list = list->next) {
1323                 device = list->data;
1324
1325                 type = __connman_device_get_service_type(device);
1326                 if (type != driver->type)
1327                         continue;
1328
1329                 techless_device_list = g_slist_remove(techless_device_list,
1330                                                                 device);
1331
1332                 __connman_technology_add_device(device);
1333         }
1334
1335         /* Check for orphaned rfkill switches. */
1336         g_hash_table_foreach(rfkill_list, rfkill_check,
1337                                         GINT_TO_POINTER(driver->type));
1338
1339 exist:
1340         if (driver->type == CONNMAN_SERVICE_TYPE_P2P) {
1341                 if (!technology_get(CONNMAN_SERVICE_TYPE_P2P))
1342                         return -ENOMEM;
1343         }
1344
1345         return 0;
1346 }
1347
1348 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
1349 {
1350         GSList *list, *tech_drivers;
1351         struct connman_technology *technology;
1352         struct connman_technology_driver *current;
1353
1354         DBG("Unregistering driver %p name %s", driver, driver->name);
1355
1356         for (list = technology_list; list; list = list->next) {
1357                 technology = list->data;
1358
1359                 for (tech_drivers = technology->driver_list; tech_drivers;
1360                                 tech_drivers = g_slist_next(tech_drivers)) {
1361                         current = tech_drivers->data;
1362                         if (driver != current)
1363                                 continue;
1364
1365                         if (driver->remove)
1366                                 driver->remove(technology);
1367
1368                         technology->driver_list =
1369                                 g_slist_remove(technology->driver_list,
1370                                                                 driver);
1371                         break;
1372                 }
1373         }
1374
1375         driver_list = g_slist_remove(driver_list, driver);
1376
1377         if (driver->type == CONNMAN_SERVICE_TYPE_P2P) {
1378                 technology = technology_find(CONNMAN_SERVICE_TYPE_P2P);
1379                 if (technology)
1380                         technology_put(technology);
1381         }
1382 }
1383
1384 void __connman_technology_add_interface(enum connman_service_type type,
1385                                 int index, const char *ident)
1386 {
1387         struct connman_technology *technology;
1388         GSList *tech_drivers;
1389         struct connman_technology_driver *driver;
1390         char *name;
1391
1392         switch (type) {
1393         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1394         case CONNMAN_SERVICE_TYPE_SYSTEM:
1395                 return;
1396         case CONNMAN_SERVICE_TYPE_ETHERNET:
1397         case CONNMAN_SERVICE_TYPE_WIFI:
1398         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1399         case CONNMAN_SERVICE_TYPE_CELLULAR:
1400         case CONNMAN_SERVICE_TYPE_GPS:
1401         case CONNMAN_SERVICE_TYPE_VPN:
1402         case CONNMAN_SERVICE_TYPE_GADGET:
1403         case CONNMAN_SERVICE_TYPE_P2P:
1404                 break;
1405         }
1406
1407         name = connman_inet_ifname(index);
1408         connman_info("Adding interface %s [ %s ]", name,
1409                                 __connman_service_type2string(type));
1410
1411         technology = technology_find(type);
1412
1413         if (!technology)
1414                 goto out;
1415
1416         for (tech_drivers = technology->driver_list; tech_drivers;
1417              tech_drivers = g_slist_next(tech_drivers)) {
1418                 driver = tech_drivers->data;
1419
1420                 if (driver->add_interface)
1421                         driver->add_interface(technology, index, name, ident);
1422         }
1423
1424         /*
1425          * At this point we can try to enable tethering automatically as
1426          * now the interfaces are set properly.
1427          */
1428         if (technology->tethering_persistent)
1429                 enable_tethering(technology);
1430
1431 out:
1432         g_free(name);
1433 }
1434
1435 void __connman_technology_remove_interface(enum connman_service_type type,
1436                                 int index, const char *ident)
1437 {
1438         struct connman_technology *technology;
1439         GSList *tech_drivers;
1440         struct connman_technology_driver *driver;
1441         char *name;
1442
1443         switch (type) {
1444         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1445         case CONNMAN_SERVICE_TYPE_SYSTEM:
1446                 return;
1447         case CONNMAN_SERVICE_TYPE_ETHERNET:
1448         case CONNMAN_SERVICE_TYPE_WIFI:
1449         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1450         case CONNMAN_SERVICE_TYPE_CELLULAR:
1451         case CONNMAN_SERVICE_TYPE_GPS:
1452         case CONNMAN_SERVICE_TYPE_VPN:
1453         case CONNMAN_SERVICE_TYPE_GADGET:
1454         case CONNMAN_SERVICE_TYPE_P2P:
1455                 break;
1456         }
1457
1458         name = connman_inet_ifname(index);
1459         connman_info("Remove interface %s [ %s ]", name,
1460                                 __connman_service_type2string(type));
1461         g_free(name);
1462
1463         technology = technology_find(type);
1464
1465         if (!technology)
1466                 return;
1467
1468         for (tech_drivers = technology->driver_list; tech_drivers;
1469              tech_drivers = g_slist_next(tech_drivers)) {
1470                 driver = tech_drivers->data;
1471
1472                 if (driver->remove_interface)
1473                         driver->remove_interface(technology, index);
1474         }
1475 }
1476
1477 int __connman_technology_add_device(struct connman_device *device)
1478 {
1479         struct connman_technology *technology;
1480         enum connman_service_type type;
1481
1482         type = __connman_device_get_service_type(device);
1483
1484         DBG("device %p type %s", device, get_name(type));
1485
1486         technology = technology_get(type);
1487         if (!technology) {
1488                 /*
1489                  * Since no driver can be found for this device at the moment we
1490                  * add it to the techless device list.
1491                 */
1492                 techless_device_list = g_slist_prepend(techless_device_list,
1493                                                                 device);
1494
1495                 return -ENXIO;
1496         }
1497
1498         __sync_synchronize();
1499         if (technology->rfkill_driven) {
1500                 if (technology->enabled)
1501                         __connman_device_enable(device);
1502                 else
1503                         __connman_device_disable(device);
1504
1505                 goto done;
1506         }
1507
1508         if (technology->enable_persistent &&
1509                                         !global_offlinemode) {
1510                 int err = __connman_device_enable(device);
1511                 /*
1512                  * connman_technology_add_device() calls __connman_device_enable()
1513                  * but since the device is already enabled, the calls does not
1514                  * propagate through to connman_technology_enabled via
1515                  * connman_device_set_powered.
1516                  */
1517                 if (err == -EALREADY)
1518                         __connman_technology_enabled(type);
1519         }
1520         /* if technology persistent state is offline */
1521         if (!technology->enable_persistent)
1522                 __connman_device_disable(device);
1523
1524 done:
1525         technology->device_list = g_slist_prepend(technology->device_list,
1526                                                                 device);
1527
1528         return 0;
1529 }
1530
1531 int __connman_technology_remove_device(struct connman_device *device)
1532 {
1533         struct connman_technology *technology;
1534         enum connman_service_type type;
1535
1536         DBG("device %p", device);
1537
1538         type = __connman_device_get_service_type(device);
1539
1540         technology = technology_find(type);
1541         if (!technology) {
1542                 techless_device_list = g_slist_remove(techless_device_list,
1543                                                                 device);
1544                 return -ENXIO;
1545         }
1546
1547         technology->device_list = g_slist_remove(technology->device_list,
1548                                                                 device);
1549
1550         if (technology->tethering)
1551                 set_tethering(technology, false);
1552
1553         technology_put(technology);
1554
1555         return 0;
1556 }
1557
1558 int __connman_technology_enabled(enum connman_service_type type)
1559 {
1560         struct connman_technology *technology;
1561
1562         technology = technology_find(type);
1563         if (!technology)
1564                 return -ENXIO;
1565
1566         DBG("technology %p type %s rfkill %d enabled %d", technology,
1567                 get_name(type), technology->rfkill_driven,
1568                 technology->enabled);
1569 #if !defined TIZEN_EXT
1570         if (technology->rfkill_driven) {
1571                 if (technology->tethering_persistent)
1572                         enable_tethering(technology);
1573                 return 0;
1574         }
1575 #endif
1576
1577         return technology_enabled(technology);
1578 }
1579
1580 int __connman_technology_disabled(enum connman_service_type type)
1581 {
1582         struct connman_technology *technology;
1583         GSList *list;
1584
1585         technology = technology_find(type);
1586         if (!technology)
1587                 return -ENXIO;
1588 #if !defined TIZEN_EXT
1589         if (technology->rfkill_driven)
1590                 return 0;
1591 #endif
1592         for (list = technology->device_list; list; list = list->next) {
1593                 struct connman_device *device = list->data;
1594
1595                 if (connman_device_get_powered(device))
1596                         return 0;
1597         }
1598
1599         return technology_disabled(technology);
1600 }
1601
1602 int __connman_technology_set_offlinemode(bool offlinemode)
1603 {
1604         GSList *list;
1605         int err = -EINVAL, enabled_tech_count = 0;
1606
1607         if (global_offlinemode == offlinemode)
1608                 return 0;
1609
1610         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1611
1612         /*
1613          * This is a bit tricky. When you set offlinemode, there is no
1614          * way to differentiate between attempting offline mode and
1615          * resuming offlinemode from last saved profile. We need that
1616          * information in rfkill_update, otherwise it falls back on the
1617          * technology's persistent state. Hence we set the offline mode here
1618          * but save it & call the notifier only if its successful.
1619          */
1620
1621         global_offlinemode = offlinemode;
1622
1623         /* Traverse technology list, enable/disable each technology. */
1624         for (list = technology_list; list; list = list->next) {
1625                 struct connman_technology *technology = list->data;
1626
1627                 if (offlinemode)
1628                         err = technology_disable(technology);
1629                 else {
1630                         if (technology->hardblocked)
1631                                 continue;
1632
1633                         if (technology->enable_persistent) {
1634                                 err = technology_enable(technology);
1635                                 enabled_tech_count++;
1636                         }
1637                 }
1638         }
1639
1640         if (err == 0 || err == -EINPROGRESS || err == -EALREADY ||
1641                         (err == -EINVAL && enabled_tech_count == 0)) {
1642                 connman_technology_save_offlinemode();
1643                 __connman_notifier_offlinemode(offlinemode);
1644         } else
1645                 global_offlinemode = connman_technology_load_offlinemode();
1646
1647         return err;
1648 }
1649
1650 void __connman_technology_set_connected(enum connman_service_type type,
1651                 bool connected)
1652 {
1653         struct connman_technology *technology;
1654         dbus_bool_t val;
1655
1656         technology = technology_find(type);
1657         if (!technology)
1658                 return;
1659
1660         DBG("technology %p connected %d", technology, connected);
1661
1662         technology->connected = connected;
1663
1664         val = connected;
1665         connman_dbus_property_changed_basic(technology->path,
1666                         CONNMAN_TECHNOLOGY_INTERFACE, "Connected",
1667                         DBUS_TYPE_BOOLEAN, &val);
1668 }
1669
1670 static bool technology_apply_rfkill_change(struct connman_technology *technology,
1671                                                 bool softblock,
1672                                                 bool hardblock,
1673                                                 bool new_rfkill)
1674 {
1675         bool hardblock_changed = false;
1676         bool apply = true;
1677         GList *start, *list;
1678
1679         DBG("technology %p --> %d/%d vs %d/%d",
1680                         technology, softblock, hardblock,
1681                         technology->softblocked, technology->hardblocked);
1682
1683         if (technology->hardblocked == hardblock)
1684                 goto softblock_change;
1685
1686         if (!(new_rfkill && !hardblock)) {
1687                 start = g_hash_table_get_values(rfkill_list);
1688
1689                 for (list = start; list; list = list->next) {
1690                         struct connman_rfkill *rfkill = list->data;
1691
1692                         if (rfkill->type != technology->type)
1693                                 continue;
1694
1695                         if (rfkill->hardblock != hardblock)
1696                                 apply = false;
1697                 }
1698
1699                 g_list_free(start);
1700         }
1701
1702         if (!apply)
1703                 goto softblock_change;
1704
1705         technology->hardblocked = hardblock;
1706         hardblock_changed = true;
1707
1708 softblock_change:
1709         if (!apply && technology->softblocked != softblock)
1710                 apply = true;
1711
1712         if (!apply)
1713                 return technology->hardblocked;
1714
1715         technology->softblocked = softblock;
1716
1717         if (technology->hardblocked ||
1718                                         technology->softblocked) {
1719                 if (technology_disabled(technology) != -EALREADY)
1720                         technology_affect_devices(technology, false);
1721         } else if (!technology->hardblocked &&
1722                                         !technology->softblocked) {
1723                 if (technology_enabled(technology) != -EALREADY)
1724                         technology_affect_devices(technology, true);
1725         }
1726
1727         if (hardblock_changed) {
1728                 if (technology->hardblocked) {
1729                         DBG("%s is switched off.", get_name(technology->type));
1730                         technology_dbus_unregister(technology);
1731                 } else {
1732                         DBG("%s is switched on.", get_name(technology->type));
1733                         technology_dbus_register(technology);
1734
1735                         if (global_offlinemode)
1736                                 __connman_rfkill_block(technology->type, true);
1737                 }
1738         }
1739
1740         return technology->hardblocked;
1741 }
1742
1743 int __connman_technology_add_rfkill(unsigned int index,
1744                                         enum connman_service_type type,
1745                                                 bool softblock,
1746                                                 bool hardblock)
1747 {
1748         struct connman_technology *technology;
1749         struct connman_rfkill *rfkill;
1750
1751         DBG("index %u type %d soft %u hard %u", index, type,
1752                                                         softblock, hardblock);
1753
1754         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1755         if (rfkill)
1756                 goto done;
1757
1758         rfkill = g_try_new0(struct connman_rfkill, 1);
1759         if (!rfkill)
1760                 return -ENOMEM;
1761
1762         rfkill->index = index;
1763         rfkill->type = type;
1764         rfkill->softblock = softblock;
1765         rfkill->hardblock = hardblock;
1766
1767         g_hash_table_insert(rfkill_list, GINT_TO_POINTER(index), rfkill);
1768
1769 done:
1770         technology = technology_get(type);
1771         /* If there is no driver for this type, ignore it. */
1772         if (!technology)
1773                 return -ENXIO;
1774
1775         technology->rfkill_driven = true;
1776
1777 #if !defined TIZEN_EXT
1778         /* If hardblocked, there is no need to handle softblocked state */
1779         if (technology_apply_rfkill_change(technology,
1780                                 softblock, hardblock, true))
1781                 return 0;
1782 #endif
1783         if (global_offlinemode)
1784                 return 0;
1785
1786         /*
1787          * Depending on softblocked state we unblock/block according to
1788          * offlinemode and persistente state.
1789          */
1790         if (technology->softblocked &&
1791                                 technology->enable_persistent)
1792                 return __connman_rfkill_block(type, false);
1793         else if (!technology->softblocked &&
1794                                 !technology->enable_persistent)
1795                 return __connman_rfkill_block(type, true);
1796
1797         return 0;
1798 }
1799
1800 int __connman_technology_update_rfkill(unsigned int index,
1801                                         enum connman_service_type type,
1802                                                 bool softblock,
1803                                                 bool hardblock)
1804 {
1805         struct connman_technology *technology;
1806         struct connman_rfkill *rfkill;
1807
1808         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1809
1810         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1811         if (!rfkill)
1812                 return -ENXIO;
1813
1814         if (rfkill->softblock == softblock &&
1815                                 rfkill->hardblock == hardblock)
1816                 return 0;
1817
1818         rfkill->softblock = softblock;
1819         rfkill->hardblock = hardblock;
1820
1821         technology = technology_find(type);
1822         /* If there is no driver for this type, ignore it. */
1823         if (!technology)
1824                 return -ENXIO;
1825
1826         technology_apply_rfkill_change(technology, softblock, hardblock,
1827                                                                 false);
1828
1829         if (technology->hardblocked)
1830                 DBG("%s hardblocked", get_name(technology->type));
1831         else
1832                 DBG("%s is%s softblocked", get_name(technology->type),
1833                         technology->softblocked ? "" : " not");
1834
1835         return 0;
1836 }
1837
1838 int __connman_technology_remove_rfkill(unsigned int index,
1839                                         enum connman_service_type type)
1840 {
1841         struct connman_technology *technology;
1842         struct connman_rfkill *rfkill;
1843
1844         DBG("index %u", index);
1845
1846         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1847         if (!rfkill)
1848                 return -ENXIO;
1849
1850         g_hash_table_remove(rfkill_list, GINT_TO_POINTER(index));
1851
1852         technology = technology_find(type);
1853         if (!technology)
1854                 return -ENXIO;
1855
1856         technology_apply_rfkill_change(technology,
1857                 technology->softblocked, !technology->hardblocked, false);
1858
1859         technology_put(technology);
1860
1861         return 0;
1862 }
1863
1864 int __connman_technology_init(void)
1865 {
1866         DBG("");
1867
1868         connection = connman_dbus_get_connection();
1869
1870         rfkill_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1871                                                         NULL, free_rfkill);
1872
1873         global_offlinemode = connman_technology_load_offlinemode();
1874
1875         /* This will create settings file if it is missing */
1876         connman_technology_save_offlinemode();
1877
1878         return 0;
1879 }
1880
1881 void __connman_technology_cleanup(void)
1882 {
1883         DBG("");
1884
1885         while (technology_list) {
1886                 struct connman_technology *technology = technology_list->data;
1887                 technology_list = g_slist_remove(technology_list, technology);
1888                 technology_put(technology);
1889         }
1890
1891         g_hash_table_destroy(rfkill_list);
1892
1893         dbus_connection_unref(connection);
1894 }