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