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
  70         bool enable_persistent; /* Save the tech state */
  71
  72         GSList *driver_list;
  73
  74         DBusMessage *pending_reply;
  75         guint pending_timeout;
  76
  77         GSList *scan_pending;
  78
  79         bool rfkill_driven;
  80         bool softblocked;
  81         bool hardblocked;
  82         bool dbus_registered;
  83 };
  84
  85 static GSList *driver_list = NULL;
  86
  87 static int technology_enabled(struct connman_technology *technology);
  88 static int technology_disabled(struct connman_technology *technology);
  89
  90 static gint compare_priority(gconstpointer a, gconstpointer b)
  91 {
  92         const struct connman_technology_driver *driver1 = a;
  93         const struct connman_technology_driver *driver2 = b;
  94
  95         return driver2->priority - driver1->priority;
  96 }
  97
  98 static void rfkill_check(gpointer key, gpointer value, gpointer user_data)
  99 {
 100         struct connman_rfkill *rfkill = value;
 101         enum connman_service_type type = GPOINTER_TO_INT(user_data);
 102
 103         /* Calling _technology_add_rfkill will update the tech. */
 104         if (rfkill->type == type)
 105                 __connman_technology_add_rfkill(rfkill->index, type,
 106                                 rfkill->softblock, rfkill->hardblock);
 107 }
 108
 109 bool
 110 connman_technology_is_tethering_allowed(enum connman_service_type type)
 111 {
 112         static char *allowed_default[] = { "wifi", "bluetooth", "gadget",
 113                                            NULL };
 114         const char *type_str = __connman_service_type2string(type);
 115         char **allowed;
 116         int i;
 117
 118         if (!type_str)
 119                 return false;
 120
 121         allowed = connman_setting_get_string_list("TetheringTechnologies");
 122         if (!allowed)
 123                 allowed = allowed_default;
 124
 125         for (i = 0; allowed[i]; i++) {
 126                 if (g_strcmp0(allowed[i], type_str) == 0)
 127                         return true;
 128         }
 129
 130         return false;
 131 }
 132
 133 static const char *get_name(enum connman_service_type type)
 134 {
 135         switch (type) {
 136         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 137         case CONNMAN_SERVICE_TYPE_SYSTEM:
 138         case CONNMAN_SERVICE_TYPE_GPS:
 139         case CONNMAN_SERVICE_TYPE_VPN:
 140                 break;
 141         case CONNMAN_SERVICE_TYPE_GADGET:
 142                 return "Gadget";
 143         case CONNMAN_SERVICE_TYPE_ETHERNET:
 144                 return "Wired";
 145         case CONNMAN_SERVICE_TYPE_WIFI:
 146                 return "WiFi";
 147         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 148                 return "Bluetooth";
 149         case CONNMAN_SERVICE_TYPE_CELLULAR:
 150                 return "Cellular";
 151         case CONNMAN_SERVICE_TYPE_P2P:
 152                 return "P2P";
 153         }
 154
 155         return NULL;
 156 }
 157
 158 static void technology_save(struct connman_technology *technology)
 159 {
 160         GKeyFile *keyfile;
 161         gchar *identifier;
 162         const char *name = get_name(technology->type);
 163
 164         DBG("technology %p type %d name %s", technology, technology->type,
 165                                                                         name);
 166         if (!name)
 167                 return;
 168
 169         keyfile = __connman_storage_load_global();
 170         if (!keyfile)
 171                 keyfile = g_key_file_new();
 172
 173         identifier = g_strdup_printf("%s", name);
 174         if (!identifier)
 175                 goto done;
 176
 177         g_key_file_set_boolean(keyfile, identifier, "Enable",
 178                                 technology->enable_persistent);
 179
 180         g_key_file_set_boolean(keyfile, identifier, "Tethering",
 181                                 technology->tethering_persistent);
 182
 183         if (technology->tethering_ident)
 184                 g_key_file_set_string(keyfile, identifier,
 185                                         "Tethering.Identifier",
 186                                         technology->tethering_ident);
 187
 188         if (technology->tethering_passphrase)
 189                 g_key_file_set_string(keyfile, identifier,
 190                                         "Tethering.Passphrase",
 191                                         technology->tethering_passphrase);
 192
 193 done:
 194         g_free(identifier);
 195
 196         __connman_storage_save_global(keyfile);
 197
 198         g_key_file_free(keyfile);
 199 }
 200
 201 static void tethering_changed(struct connman_technology *technology)
 202 {
 203         dbus_bool_t tethering = technology->tethering;
 204
 205         connman_dbus_property_changed_basic(technology->path,
 206                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 207                                                 DBUS_TYPE_BOOLEAN, &tethering);
 208
 209         technology_save(technology);
 210 }
 211
 212 int connman_technology_tethering_notify(struct connman_technology *technology,
 213                                                         bool enabled)
 214 {
 215         int err;
 216
 217         DBG("technology %p enabled %u", technology, enabled);
 218
 219         if (technology->tethering == enabled)
 220                 return -EALREADY;
 221
 222         if (enabled) {
 223                 err = __connman_tethering_set_enabled();
 224                 if (err < 0)
 225                         return err;
 226         } else
 227                 __connman_tethering_set_disabled();
 228
 229         technology->tethering = enabled;
 230         tethering_changed(technology);
 231
 232         return 0;
 233 }
 234
 235 static int set_tethering(struct connman_technology *technology,
 236                                 bool enabled)
 237 {
 238         int result = -EOPNOTSUPP;
 239         int err;
 240         const char *ident, *passphrase, *bridge;
 241         GSList *tech_drivers;
 242
 243         ident = technology->tethering_ident;
 244         passphrase = technology->tethering_passphrase;
 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 &&
 255             (!ident || !passphrase))
 256                 return -EINVAL;
 257
 258         for (tech_drivers = technology->driver_list; tech_drivers;
 259              tech_drivers = g_slist_next(tech_drivers)) {
 260                 struct connman_technology_driver *driver = tech_drivers->data;
 261
 262                 if (!driver || !driver->set_tethering)
 263                         continue;
 264
 265                 err = driver->set_tethering(technology, ident, passphrase,
 266                                 bridge, enabled);
 267
 268                 if (result == -EINPROGRESS)
 269                         continue;
 270
 271                 if (err == -EINPROGRESS || err == 0)
 272                         result = err;
 273         }
 274
 275         return result;
 276 }
 277
 278 void connman_technology_regdom_notify(struct connman_technology *technology,
 279                                                         const char *alpha2)
 280 {
 281         DBG("");
 282
 283         if (!alpha2)
 284                 connman_error("Failed to set regulatory domain");
 285         else
 286                 DBG("Regulatory domain set to %s", alpha2);
 287
 288         g_free(technology->regdom);
 289         technology->regdom = g_strdup(alpha2);
 290 }
 291
 292 static int set_regdom_by_device(struct connman_technology *technology,
 293                                                         const char *alpha2)
 294 {
 295         GSList *list;
 296
 297         for (list = technology->device_list; list; list = list->next) {
 298                 struct connman_device *device = list->data;
 299
 300                 if (connman_device_set_regdom(device, alpha2) != 0)
 301                         return -ENOTSUP;
 302         }
 303
 304         return 0;
 305 }
 306
 307 int connman_technology_set_regdom(const char *alpha2)
 308 {
 309         GSList *list, *tech_drivers;
 310
 311         for (list = technology_list; list; list = list->next) {
 312                 struct connman_technology *technology = list->data;
 313
 314                 if (set_regdom_by_device(technology, alpha2) != 0) {
 315
 316                         for (tech_drivers = technology->driver_list;
 317                              tech_drivers;
 318                              tech_drivers = g_slist_next(tech_drivers)) {
 319
 320                                 struct connman_technology_driver *driver =
 321                                         tech_drivers->data;
 322
 323                                 if (driver->set_regdom)
 324                                         driver->set_regdom(technology, alpha2);
 325                         }
 326                 }
 327         }
 328
 329         return 0;
 330 }
 331
 332 static struct connman_technology *technology_find(enum connman_service_type type)
 333 {
 334         GSList *list;
 335
 336         DBG("type %d", type);
 337
 338         for (list = technology_list; list; list = list->next) {
 339                 struct connman_technology *technology = list->data;
 340
 341                 if (technology->type == type)
 342                         return technology;
 343         }
 344
 345         return NULL;
 346 }
 347
 348 enum connman_service_type connman_technology_get_type
 349                                 (struct connman_technology *technology)
 350 {
 351         if (!technology)
 352                 return CONNMAN_SERVICE_TYPE_UNKNOWN;
 353
 354         return technology->type;
 355 }
 356
 357 bool connman_technology_get_wifi_tethering(const char **ssid,
 358                                                         const char **psk)
 359 {
 360         struct connman_technology *technology;
 361
 362         if (!ssid || !psk)
 363                 return false;
 364
 365         *ssid = *psk = NULL;
 366
 367         technology = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
 368         if (!technology)
 369                 return false;
 370
 371         if (!technology->tethering)
 372                 return false;
 373
 374         *ssid = technology->tethering_ident;
 375         *psk = technology->tethering_passphrase;
 376
 377         return true;
 378 }
 379
 380 static void free_rfkill(gpointer data)
 381 {
 382         struct connman_rfkill *rfkill = data;
 383
 384         g_free(rfkill);
 385 }
 386
 387 static void technology_load(struct connman_technology *technology)
 388 {
 389         GKeyFile *keyfile;
 390         gchar *identifier;
 391         GError *error = NULL;
 392         bool enable, need_saving = false;
 393
 394         DBG("technology %p", technology);
 395
 396         keyfile = __connman_storage_load_global();
 397         /* Fallback on disabling technology if file not found. */
 398         if (!keyfile) {
 399                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 400                         /* We enable ethernet by default */
 401                         technology->enable_persistent = true;
 402                 else
 403                         technology->enable_persistent = false;
 404                 return;
 405         }
 406
 407         identifier = g_strdup_printf("%s", get_name(technology->type));
 408         if (!identifier)
 409                 goto done;
 410
 411         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 412         if (!error)
 413                 technology->enable_persistent = enable;
 414         else {
 415                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 416                         technology->enable_persistent = true;
 417                 else
 418                         technology->enable_persistent = false;
 419
 420                 need_saving = true;
 421                 g_clear_error(&error);
 422         }
 423
 424         enable = g_key_file_get_boolean(keyfile, identifier,
 425                                         "Tethering", &error);
 426         if (!error)
 427                 technology->tethering_persistent = enable;
 428         else {
 429                 need_saving = true;
 430                 g_clear_error(&error);
 431         }
 432
 433         if (need_saving)
 434                 technology_save(technology);
 435
 436         technology->tethering_ident = g_key_file_get_string(keyfile,
 437                                 identifier, "Tethering.Identifier", NULL);
 438
 439         technology->tethering_passphrase = g_key_file_get_string(keyfile,
 440                                 identifier, "Tethering.Passphrase", NULL);
 441 done:
 442         g_free(identifier);
 443
 444         g_key_file_free(keyfile);
 445 }
 446
 447 bool __connman_technology_get_offlinemode(void)
 448 {
 449         return global_offlinemode;
 450 }
 451
 452 static void connman_technology_save_offlinemode(void)
 453 {
 454         GKeyFile *keyfile;
 455         GError *error = NULL;
 456         bool offlinemode;
 457
 458         keyfile = __connman_storage_load_global();
 459
 460         if (!keyfile) {
 461                 keyfile = g_key_file_new();
 462                 g_key_file_set_boolean(keyfile, "global",
 463                                         "OfflineMode", global_offlinemode);
 464
 465                 __connman_storage_save_global(keyfile);
 466         }
 467         else {
 468                 offlinemode = g_key_file_get_boolean(keyfile, "global",
 469                                                 "OfflineMode", &error);
 470
 471                 if (error || offlinemode != global_offlinemode) {
 472                         g_key_file_set_boolean(keyfile, "global",
 473                                         "OfflineMode", global_offlinemode);
 474                         if (error)
 475                                 g_clear_error(&error);
 476
 477                         __connman_storage_save_global(keyfile);
 478                 }
 479         }
 480
 481         g_key_file_free(keyfile);
 482 }
 483
 484 static bool connman_technology_load_offlinemode(void)
 485 {
 486         GKeyFile *keyfile;
 487         GError *error = NULL;
 488         bool offlinemode;
 489
 490         /* If there is a error, we enable offlinemode */
 491         keyfile = __connman_storage_load_global();
 492         if (!keyfile)
 493                 return false;
 494
 495         offlinemode = g_key_file_get_boolean(keyfile, "global",
 496                                                 "OfflineMode", &error);
 497         if (error) {
 498                 offlinemode = false;
 499                 g_clear_error(&error);
 500         }
 501
 502         g_key_file_free(keyfile);
 503
 504         return offlinemode;
 505 }
 506
 507 static void append_properties(DBusMessageIter *iter,
 508                 struct connman_technology *technology)
 509 {
 510         DBusMessageIter dict;
 511         dbus_bool_t val;
 512         const char *str;
 513
 514         connman_dbus_dict_open(iter, &dict);
 515
 516         str = get_name(technology->type);
 517         if (str)
 518                 connman_dbus_dict_append_basic(&dict, "Name",
 519                                                 DBUS_TYPE_STRING, &str);
 520
 521         str = __connman_service_type2string(technology->type);
 522         if (str)
 523                 connman_dbus_dict_append_basic(&dict, "Type",
 524                                                 DBUS_TYPE_STRING, &str);
 525
 526         __sync_synchronize();
 527         val = technology->enabled;
 528         connman_dbus_dict_append_basic(&dict, "Powered",
 529                                         DBUS_TYPE_BOOLEAN,
 530                                         &val);
 531
 532         val = technology->connected;
 533         connman_dbus_dict_append_basic(&dict, "Connected",
 534                                         DBUS_TYPE_BOOLEAN,
 535                                         &val);
 536
 537         val = technology->tethering;
 538         connman_dbus_dict_append_basic(&dict, "Tethering",
 539                                         DBUS_TYPE_BOOLEAN,
 540                                         &val);
 541
 542         if (technology->tethering_ident)
 543                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 544                                         DBUS_TYPE_STRING,
 545                                         &technology->tethering_ident);
 546
 547         if (technology->tethering_passphrase)
 548                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 549                                         DBUS_TYPE_STRING,
 550                                         &technology->tethering_passphrase);
 551
 552         connman_dbus_dict_close(iter, &dict);
 553 }
 554
 555 static void technology_added_signal(struct connman_technology *technology)
 556 {
 557         DBusMessage *signal;
 558         DBusMessageIter iter;
 559
 560         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 561                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 562         if (!signal)
 563                 return;
 564
 565         dbus_message_iter_init_append(signal, &iter);
 566         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 567                                                         &technology->path);
 568         append_properties(&iter, technology);
 569
 570         dbus_connection_send(connection, signal, NULL);
 571         dbus_message_unref(signal);
 572 }
 573
 574 static void technology_removed_signal(struct connman_technology *technology)
 575 {
 576         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 577                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 578                         DBUS_TYPE_OBJECT_PATH, &technology->path,
 579                         DBUS_TYPE_INVALID);
 580 }
 581
 582 static DBusMessage *get_properties(DBusConnection *conn,
 583                                         DBusMessage *message, void *user_data)
 584 {
 585         struct connman_technology *technology = user_data;
 586         DBusMessage *reply;
 587         DBusMessageIter iter;
 588
 589         reply = dbus_message_new_method_return(message);
 590         if (!reply)
 591                 return NULL;
 592
 593         dbus_message_iter_init_append(reply, &iter);
 594         append_properties(&iter, technology);
 595
 596         return reply;
 597 }
 598
 599 void __connman_technology_list_struct(DBusMessageIter *array)
 600 {
 601         GSList *list;
 602         DBusMessageIter entry;
 603
 604         for (list = technology_list; list; list = list->next) {
 605                 struct connman_technology *technology = list->data;
 606
 607                 if (!technology->path ||
 608                                 (technology->rfkill_driven &&
 609                                  technology->hardblocked))
 610                         continue;
 611
 612                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 613                                 NULL, &entry);
 614                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 615                                 &technology->path);
 616                 append_properties(&entry, technology);
 617                 dbus_message_iter_close_container(array, &entry);
 618         }
 619 }
 620
 621 static gboolean technology_pending_reply(gpointer user_data)
 622 {
 623         struct connman_technology *technology = user_data;
 624         DBusMessage *reply;
 625
 626         /* Power request timed out, send ETIMEDOUT. */
 627         if (technology->pending_reply) {
 628                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 629                 if (reply)
 630                         g_dbus_send_message(connection, reply);
 631
 632                 dbus_message_unref(technology->pending_reply);
 633                 technology->pending_reply = NULL;
 634                 technology->pending_timeout = 0;
 635         }
 636
 637         return FALSE;
 638 }
 639
 640 static int technology_affect_devices(struct connman_technology *technology,
 641                                                 bool enable_device)
 642 {
 643         int err = 0, err_dev;
 644         GSList *list;
 645
 646         if (technology->type == CONNMAN_SERVICE_TYPE_P2P) {
 647                 if (enable_device)
 648                         __connman_technology_enabled(technology->type);
 649                 else
 650                         __connman_technology_disabled(technology->type);
 651                 return 0;
 652         }
 653
 654         for (list = technology->device_list; list; list = list->next) {
 655                 struct connman_device *device = list->data;
 656
 657                 if (enable_device)
 658                         err_dev = __connman_device_enable(device);
 659                 else
 660                         err_dev = __connman_device_disable(device);
 661
 662                 if (err_dev < 0 && err_dev != -EALREADY)
 663                         err = err_dev;
 664         }
 665
 666         return err;
 667 }
 668
 669 static void powered_changed(struct connman_technology *technology)
 670 {
 671         dbus_bool_t enabled;
 672
 673         if (!technology->dbus_registered)
 674                 return;
 675
 676         if (technology->pending_reply) {
 677                 g_dbus_send_reply(connection,
 678                                 technology->pending_reply, DBUS_TYPE_INVALID);
 679                 dbus_message_unref(technology->pending_reply);
 680                 technology->pending_reply = NULL;
 681
 682                 g_source_remove(technology->pending_timeout);
 683                 technology->pending_timeout = 0;
 684         }
 685
 686         __sync_synchronize();
 687         enabled = technology->enabled;
 688         connman_dbus_property_changed_basic(technology->path,
 689                         CONNMAN_TECHNOLOGY_INTERFACE, "Powered",
 690                         DBUS_TYPE_BOOLEAN, &enabled);
 691 }
 692
 693 static void enable_tethering(struct connman_technology *technology)
 694 {
 695         int ret;
 696
 697         if (!connman_setting_get_bool("PersistentTetheringMode"))
 698                 return;
 699
 700         ret = set_tethering(technology, true);
 701         if (ret < 0 && ret != -EALREADY)
 702                 DBG("Cannot enable tethering yet for %s (%d/%s)",
 703                         get_name(technology->type),
 704                         -ret, strerror(-ret));
 705 }
 706
 707 static int technology_enabled(struct connman_technology *technology)
 708 {
 709         __sync_synchronize();
 710         if (technology->enabled)
 711                 return -EALREADY;
 712
 713         technology->enabled = true;
 714
 715         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI) {
 716                 struct connman_technology *p2p;
 717
 718                 p2p = technology_find(CONNMAN_SERVICE_TYPE_P2P);
 719                 if (p2p && !p2p->enabled && p2p->enable_persistent)
 720                         technology_enabled(p2p);
 721         }
 722
 723         if (technology->tethering_persistent)
 724                 enable_tethering(technology);
 725
 726         powered_changed(technology);
 727
 728         return 0;
 729 }
 730
 731 static int technology_enable(struct connman_technology *technology)
 732 {
 733         int err = 0;
 734         int err_dev;
 735
 736         DBG("technology %p enable", technology);
 737
 738         __sync_synchronize();
 739
 740         if (technology->type == CONNMAN_SERVICE_TYPE_P2P) {
 741                 struct connman_technology *wifi;
 742
 743                 wifi = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
 744                 if (wifi && wifi->enabled)
 745                         return technology_enabled(technology);
 746                 return 0;
 747         }
 748
 749         if (technology->enabled)
 750                 return -EALREADY;
 751
 752         if (technology->pending_reply)
 753                 return -EBUSY;
 754
 755         if (connman_setting_get_bool("PersistentTetheringMode") &&
 756                                         technology->tethering)
 757                 set_tethering(technology, true);
 758
 759         if (technology->rfkill_driven)
 760                 err = __connman_rfkill_block(technology->type, false);
 761
 762         err_dev = technology_affect_devices(technology, true);
 763
 764         if (!technology->rfkill_driven)
 765                 err = err_dev;
 766
 767         return err;
 768 }
 769
 770 static int technology_disabled(struct connman_technology *technology)
 771 {
 772         __sync_synchronize();
 773         if (!technology->enabled)
 774                 return -EALREADY;
 775
 776         technology->enabled = false;
 777
 778         powered_changed(technology);
 779
 780         return 0;
 781 }
 782
 783 static int technology_disable(struct connman_technology *technology)
 784 {
 785         int err;
 786
 787         DBG("technology %p disable", technology);
 788
 789         __sync_synchronize();
 790
 791         if (technology->type == CONNMAN_SERVICE_TYPE_P2P) {
 792                 technology->enable_persistent = false;
 793                 __connman_device_stop_scan(CONNMAN_SERVICE_TYPE_P2P);
 794                 __connman_peer_disconnect_all();
 795                 return technology_disabled(technology);
 796         } else if (technology->type == CONNMAN_SERVICE_TYPE_WIFI) {
 797                 struct connman_technology *p2p;
 798
 799                 p2p = technology_find(CONNMAN_SERVICE_TYPE_P2P);
 800                 if (p2p && p2p->enabled) {
 801                         p2p->enable_persistent = true;
 802                         technology_disabled(p2p);
 803                 }
 804         }
 805
 806         if (!technology->enabled)
 807                 return -EALREADY;
 808
 809         if (technology->pending_reply)
 810                 return -EBUSY;
 811
 812         if (technology->tethering)
 813                 set_tethering(technology, false);
 814
 815         err = technology_affect_devices(technology, false);
 816
 817         if (technology->rfkill_driven)
 818                 err = __connman_rfkill_block(technology->type, true);
 819
 820         return err;
 821 }
 822
 823 static DBusMessage *set_powered(struct connman_technology *technology,
 824                                 DBusMessage *msg, bool powered)
 825 {
 826         DBusMessage *reply = NULL;
 827         int err = 0;
 828
 829         if (technology->rfkill_driven && technology->hardblocked) {
 830                 err = -EACCES;
 831                 goto make_reply;
 832         }
 833
 834         if (powered)
 835                 err = technology_enable(technology);
 836         else
 837                 err = technology_disable(technology);
 838
 839         if (err != -EBUSY) {
 840                 technology->enable_persistent = powered;
 841                 technology_save(technology);
 842         }
 843
 844 make_reply:
 845         if (err == -EINPROGRESS) {
 846                 technology->pending_reply = dbus_message_ref(msg);
 847                 technology->pending_timeout = g_timeout_add_seconds(10,
 848                                         technology_pending_reply, technology);
 849         } else if (err == -EALREADY) {
 850                 if (powered)
 851                         reply = __connman_error_already_enabled(msg);
 852                 else
 853                         reply = __connman_error_already_disabled(msg);
 854         } else if (err < 0)
 855                 reply = __connman_error_failed(msg, -err);
 856         else
 857                 reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 858
 859         return reply;
 860 }
 861
 862 static DBusMessage *set_property(DBusConnection *conn,
 863                                         DBusMessage *msg, void *data)
 864 {
 865         struct connman_technology *technology = data;
 866         DBusMessageIter iter, value;
 867         const char *name;
 868         int type, err;
 869
 870         DBG("conn %p", conn);
 871
 872         if (!dbus_message_iter_init(msg, &iter))
 873                 return __connman_error_invalid_arguments(msg);
 874
 875         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 876                 return __connman_error_invalid_arguments(msg);
 877
 878         dbus_message_iter_get_basic(&iter, &name);
 879         dbus_message_iter_next(&iter);
 880
 881         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 882                 return __connman_error_invalid_arguments(msg);
 883
 884         dbus_message_iter_recurse(&iter, &value);
 885
 886         type = dbus_message_iter_get_arg_type(&value);
 887
 888         DBG("property %s", name);
 889
 890         if (g_str_equal(name, "Tethering")) {
 891                 dbus_bool_t tethering;
 892                 int err;
 893
 894                 if (type != DBUS_TYPE_BOOLEAN)
 895                         return __connman_error_invalid_arguments(msg);
 896
 897                 if (!connman_technology_is_tethering_allowed(technology->type)) {
 898                         DBG("%s tethering not allowed by config file",
 899                                 __connman_service_type2string(technology->type));
 900                         return __connman_error_not_supported(msg);
 901                 }
 902
 903                 dbus_message_iter_get_basic(&value, &tethering);
 904
 905                 if (technology->tethering == tethering) {
 906                         if (!tethering)
 907                                 return __connman_error_already_disabled(msg);
 908                         else
 909                                 return __connman_error_already_enabled(msg);
 910                 }
 911
 912                 err = set_tethering(technology, tethering);
 913                 if (err < 0)
 914                         return __connman_error_failed(msg, -err);
 915
 916                 technology->tethering_persistent = tethering;
 917
 918                 technology_save(technology);
 919
 920         } else if (g_str_equal(name, "TetheringIdentifier")) {
 921                 const char *str;
 922
 923                 dbus_message_iter_get_basic(&value, &str);
 924
 925                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 926                         return __connman_error_not_supported(msg);
 927
 928                 if (strlen(str) < 1 || strlen(str) > 32)
 929                         return __connman_error_invalid_arguments(msg);
 930
 931                 if (g_strcmp0(technology->tethering_ident, str) != 0) {
 932                         g_free(technology->tethering_ident);
 933                         technology->tethering_ident = g_strdup(str);
 934                         technology_save(technology);
 935
 936                         connman_dbus_property_changed_basic(technology->path,
 937                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 938                                                 "TetheringIdentifier",
 939                                                 DBUS_TYPE_STRING,
 940                                                 &technology->tethering_ident);
 941                 }
 942         } else if (g_str_equal(name, "TetheringPassphrase")) {
 943                 const char *str;
 944
 945                 dbus_message_iter_get_basic(&value, &str);
 946
 947                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 948                         return __connman_error_not_supported(msg);
 949
 950                 err = __connman_service_check_passphrase(CONNMAN_SERVICE_SECURITY_PSK,
 951                                                         str);
 952                 if (err < 0)
 953                         return __connman_error_passphrase_required(msg);
 954
 955                 if (g_strcmp0(technology->tethering_passphrase, str) != 0) {
 956                         g_free(technology->tethering_passphrase);
 957                         technology->tethering_passphrase = g_strdup(str);
 958                         technology_save(technology);
 959
 960                         connman_dbus_property_changed_basic(technology->path,
 961                                         CONNMAN_TECHNOLOGY_INTERFACE,
 962                                         "TetheringPassphrase",
 963                                         DBUS_TYPE_STRING,
 964                                         &technology->tethering_passphrase);
 965                 }
 966         } else if (g_str_equal(name, "Powered")) {
 967                 dbus_bool_t enable;
 968
 969                 if (type != DBUS_TYPE_BOOLEAN)
 970                         return __connman_error_invalid_arguments(msg);
 971
 972                 dbus_message_iter_get_basic(&value, &enable);
 973
 974                 return set_powered(technology, msg, enable);
 975         } else
 976                 return __connman_error_invalid_property(msg);
 977
 978         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 979 }
 980
 981 static void reply_scan_pending(struct connman_technology *technology, int err)
 982 {
 983         DBusMessage *reply;
 984
 985         DBG("technology %p err %d", technology, err);
 986
 987         while (technology->scan_pending) {
 988                 DBusMessage *msg = technology->scan_pending->data;
 989
 990                 DBG("reply to %s", dbus_message_get_sender(msg));
 991
 992                 if (err == 0)
 993                         reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 994                 else
 995                         reply = __connman_error_failed(msg, -err);
 996                 g_dbus_send_message(connection, reply);
 997                 dbus_message_unref(msg);
 998
 999                 technology->scan_pending =
1000                         g_slist_delete_link(technology->scan_pending,
1001                                         technology->scan_pending);
1002         }
1003 }
1004
1005 void __connman_technology_scan_started(struct connman_device *device)
1006 {
1007         DBG("device %p", device);
1008 }
1009
1010 void __connman_technology_scan_stopped(struct connman_device *device,
1011                                         enum connman_service_type type)
1012 {
1013         int count = 0;
1014         struct connman_technology *technology;
1015         GSList *list;
1016
1017         technology = technology_find(type);
1018
1019         DBG("technology %p device %p", technology, device);
1020
1021         if (!technology)
1022                 return;
1023
1024         for (list = technology->device_list; list; list = list->next) {
1025                 struct connman_device *other_device = list->data;
1026
1027                 if (device == other_device)
1028                         continue;
1029
1030                 if (connman_device_get_scanning(other_device, type))
1031                         count += 1;
1032         }
1033
1034         if (count == 0)
1035                 reply_scan_pending(technology, 0);
1036 }
1037
1038 void __connman_technology_notify_regdom_by_device(struct connman_device *device,
1039                                                 int result, const char *alpha2)
1040 {
1041         bool regdom_set = false;
1042         struct connman_technology *technology;
1043         enum connman_service_type type;
1044         GSList *tech_drivers;
1045
1046         type = __connman_device_get_service_type(device);
1047         technology = technology_find(type);
1048
1049         if (!technology)
1050                 return;
1051
1052         if (result < 0) {
1053
1054                 for (tech_drivers = technology->driver_list;
1055                      tech_drivers;
1056                      tech_drivers = g_slist_next(tech_drivers)) {
1057                         struct connman_technology_driver *driver =
1058                                 tech_drivers->data;
1059
1060                         if (driver->set_regdom) {
1061                                 driver->set_regdom(technology, alpha2);
1062                                 regdom_set = true;
1063                         }
1064
1065                 }
1066
1067                 if (!regdom_set)
1068                         alpha2 = NULL;
1069         }
1070
1071         connman_technology_regdom_notify(technology, alpha2);
1072 }
1073
1074 static DBusMessage *scan(DBusConnection *conn, DBusMessage *msg, void *data)
1075 {
1076         struct connman_technology *technology = data;
1077         int err;
1078
1079         DBG("technology %p request from %s", technology,
1080                         dbus_message_get_sender(msg));
1081
1082         if (technology->type == CONNMAN_SERVICE_TYPE_P2P &&
1083                                 !technology->enabled)
1084                 return __connman_error_permission_denied(msg);
1085
1086         dbus_message_ref(msg);
1087         technology->scan_pending =
1088                 g_slist_prepend(technology->scan_pending, msg);
1089
1090         err = __connman_device_request_scan_full(technology->type);
1091         if (err < 0)
1092                 reply_scan_pending(technology, err);
1093
1094         return NULL;
1095 }
1096
1097 static const GDBusMethodTable technology_methods[] = {
1098         { GDBUS_DEPRECATED_METHOD("GetProperties",
1099                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
1100                         get_properties) },
1101         { GDBUS_ASYNC_METHOD("SetProperty",
1102                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
1103                         NULL, set_property) },
1104         { GDBUS_ASYNC_METHOD("Scan", NULL, NULL, scan) },
1105         { },
1106 };
1107
1108 static const GDBusSignalTable technology_signals[] = {
1109         { GDBUS_SIGNAL("PropertyChanged",
1110                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
1111         { },
1112 };
1113
1114 static bool technology_dbus_register(struct connman_technology *technology)
1115 {
1116         if (technology->dbus_registered ||
1117                                 (technology->rfkill_driven &&
1118                                  technology->hardblocked))
1119                 return true;
1120
1121         if (!g_dbus_register_interface(connection, technology->path,
1122                                         CONNMAN_TECHNOLOGY_INTERFACE,
1123                                         technology_methods, technology_signals,
1124                                         NULL, technology, NULL)) {
1125                 connman_error("Failed to register %s", technology->path);
1126                 return false;
1127         }
1128
1129         technology_added_signal(technology);
1130         technology->dbus_registered = true;
1131
1132         return true;
1133 }
1134
1135 static void technology_dbus_unregister(struct connman_technology *technology)
1136 {
1137         if (!technology->dbus_registered)
1138                 return;
1139
1140         technology_removed_signal(technology);
1141         g_dbus_unregister_interface(connection, technology->path,
1142                 CONNMAN_TECHNOLOGY_INTERFACE);
1143
1144         technology->dbus_registered = false;
1145 }
1146
1147 static void technology_put(struct connman_technology *technology)
1148 {
1149         DBG("technology %p", technology);
1150
1151         if (__sync_sub_and_fetch(&technology->refcount, 1) > 0)
1152                 return;
1153
1154         reply_scan_pending(technology, -EINTR);
1155
1156         while (technology->driver_list) {
1157                 struct connman_technology_driver *driver;
1158
1159                 driver = technology->driver_list->data;
1160
1161                 if (driver->remove)
1162                         driver->remove(technology);
1163
1164                 technology->driver_list =
1165                         g_slist_delete_link(technology->driver_list,
1166                                         technology->driver_list);
1167         }
1168
1169         technology_list = g_slist_remove(technology_list, technology);
1170
1171         technology_dbus_unregister(technology);
1172
1173         g_slist_free(technology->device_list);
1174
1175     if (technology->pending_reply) {
1176         dbus_message_unref(technology->pending_reply);
1177         technology->pending_reply = NULL;
1178         g_source_remove(technology->pending_timeout);
1179         technology->pending_timeout = 0;
1180     }
1181
1182         g_free(technology->path);
1183         g_free(technology->regdom);
1184         g_free(technology->tethering_ident);
1185         g_free(technology->tethering_passphrase);
1186         g_free(technology);
1187 }
1188
1189 static struct connman_technology *technology_get(enum connman_service_type type)
1190 {
1191         GSList *tech_drivers = NULL;
1192         struct connman_technology_driver *driver;
1193         struct connman_technology *technology;
1194         const char *str;
1195         GSList *list;
1196
1197         DBG("type %d", type);
1198
1199         str = __connman_service_type2string(type);
1200         if (!str)
1201                 return NULL;
1202
1203         technology = technology_find(type);
1204         if (technology) {
1205                 if (type != CONNMAN_SERVICE_TYPE_P2P)
1206                         __sync_fetch_and_add(&technology->refcount, 1);
1207                 return technology;
1208         }
1209
1210         /* First check if we have a driver for this technology type */
1211         for (list = driver_list; list; list = list->next) {
1212                 driver = list->data;
1213
1214                 if (driver->type == type) {
1215                         DBG("technology %p driver %p", technology, driver);
1216                         tech_drivers = g_slist_append(tech_drivers, driver);
1217                 }
1218         }
1219
1220         if (!tech_drivers) {
1221                 DBG("No matching drivers found for %s.",
1222                                 __connman_service_type2string(type));
1223                 return NULL;
1224         }
1225
1226         technology = g_try_new0(struct connman_technology, 1);
1227         if (!technology)
1228                 return NULL;
1229
1230         technology->refcount = 1;
1231         technology->type = type;
1232         technology->path = g_strdup_printf("%s/technology/%s",
1233                                                         CONNMAN_PATH, str);
1234
1235         technology_load(technology);
1236         technology_list = g_slist_prepend(technology_list, technology);
1237         technology->driver_list = tech_drivers;
1238
1239         for (list = tech_drivers; list; list = list->next) {
1240                 driver = list->data;
1241
1242                 if (driver->probe && driver->probe(technology) < 0)
1243                         DBG("Driver probe failed for technology %p",
1244                                         technology);
1245         }
1246
1247         if (!technology_dbus_register(technology)) {
1248                 technology_put(technology);
1249                 return NULL;
1250         }
1251
1252         if (type == CONNMAN_SERVICE_TYPE_P2P) {
1253                 struct connman_technology *wifi;
1254                 bool enable;
1255
1256                 enable = technology->enable_persistent;
1257
1258                 wifi = technology_find(CONNMAN_SERVICE_TYPE_WIFI);
1259                 if (enable && wifi)
1260                         enable = wifi->enabled;
1261
1262                 technology_affect_devices(technology, enable);
1263         }
1264
1265         DBG("technology %p %s", technology, get_name(technology->type));
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 call 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 it is 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         while (technology_list) {
1852                 struct connman_technology *technology = technology_list->data;
1853                 technology_list = g_slist_remove(technology_list, technology);
1854                 technology_put(technology);
1855         }
1856
1857         g_hash_table_destroy(rfkill_list);
1858
1859         dbus_connection_unref(connection);
1860 }