src/technology.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2012  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 connman_bool_t global_offlinemode;
  45
  46 struct connman_rfkill {
  47         unsigned int index;
  48         enum connman_service_type type;
  49         connman_bool_t softblock;
  50         connman_bool_t hardblock;
  51 };
  52
  53 struct connman_technology {
  54         int refcount;
  55         enum connman_service_type type;
  56         char *path;
  57         GSList *device_list;
  58         int enabled;
  59         char *regdom;
  60         connman_bool_t connected;
  61
  62         connman_bool_t tethering;
  63         char *tethering_ident;
  64         char *tethering_passphrase;
  65
  66         connman_bool_t enable_persistent; /* Save the tech state */
  67
  68         struct connman_technology_driver *driver;
  69         void *driver_data;
  70
  71         DBusMessage *pending_reply;
  72         guint pending_timeout;
  73
  74         GSList *scan_pending;
  75
  76         connman_bool_t hardblocked;
  77 };
  78
  79 static GSList *driver_list = NULL;
  80
  81 static gint compare_priority(gconstpointer a, gconstpointer b)
  82 {
  83         const struct connman_technology_driver *driver1 = a;
  84         const struct connman_technology_driver *driver2 = b;
  85
  86         return driver2->priority - driver1->priority;
  87 }
  88
  89 static void rfkill_check(gpointer key, gpointer value, gpointer user_data)
  90 {
  91         struct connman_rfkill *rfkill = value;
  92         enum connman_service_type type = GPOINTER_TO_INT(user_data);
  93
  94         /* Calling _technology_rfkill_add will update the tech. */
  95         if (rfkill->type == type)
  96                 __connman_technology_add_rfkill(rfkill->index, type,
  97                                 rfkill->softblock, rfkill->hardblock);
  98 }
  99
 100 /**
 101  * connman_technology_driver_register:
 102  * @driver: Technology driver definition
 103  *
 104  * Register a new technology driver
 105  *
 106  * Returns: %0 on success
 107  */
 108 int connman_technology_driver_register(struct connman_technology_driver *driver)
 109 {
 110         GSList *list;
 111         struct connman_device *device;
 112         enum connman_service_type type;
 113
 114         DBG("Registering %s driver", driver->name);
 115
 116         driver_list = g_slist_insert_sorted(driver_list, driver,
 117                                                         compare_priority);
 118
 119         if (techless_device_list == NULL)
 120                 goto check_rfkill;
 121
 122         /*
 123          * Check for technology less devices if this driver
 124          * can service any of them.
 125         */
 126         for (list = techless_device_list; list; list = list->next) {
 127                 device = list->data;
 128
 129                 type = __connman_device_get_service_type(device);
 130                 if (type != driver->type)
 131                         continue;
 132
 133                 techless_device_list = g_slist_remove(techless_device_list,
 134                                                                 device);
 135
 136                 __connman_technology_add_device(device);
 137         }
 138
 139 check_rfkill:
 140         /* Check for orphaned rfkill switches. */
 141         g_hash_table_foreach(rfkill_list, rfkill_check,
 142                                         GINT_TO_POINTER(driver->type));
 143
 144         return 0;
 145 }
 146
 147 /**
 148  * connman_technology_driver_unregister:
 149  * @driver: Technology driver definition
 150  *
 151  * Remove a previously registered technology driver
 152  */
 153 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 154 {
 155         GSList *list;
 156         struct connman_technology *technology;
 157
 158         DBG("Unregistering driver %p name %s", driver, driver->name);
 159
 160         for (list = technology_list; list; list = list->next) {
 161                 technology = list->data;
 162
 163                 if (technology->driver == NULL)
 164                         continue;
 165
 166                 if (technology->type == driver->type) {
 167                         technology->driver->remove(technology);
 168                         technology->driver = NULL;
 169                 }
 170         }
 171
 172         driver_list = g_slist_remove(driver_list, driver);
 173 }
 174
 175 static void tethering_changed(struct connman_technology *technology)
 176 {
 177         connman_bool_t tethering = technology->tethering;
 178
 179         connman_dbus_property_changed_basic(technology->path,
 180                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 181                                                 DBUS_TYPE_BOOLEAN, &tethering);
 182 }
 183
 184 void connman_technology_tethering_notify(struct connman_technology *technology,
 185                                                         connman_bool_t enabled)
 186 {
 187         GSList *list;
 188
 189         DBG("technology %p enabled %u", technology, enabled);
 190
 191         if (technology->tethering == enabled)
 192                 return;
 193
 194         technology->tethering = enabled;
 195
 196         tethering_changed(technology);
 197
 198         if (enabled == TRUE)
 199                 __connman_tethering_set_enabled();
 200         else {
 201                 for (list = technology_list; list; list = list->next) {
 202                         struct connman_technology *other_tech = list->data;
 203                         if (other_tech->tethering == TRUE)
 204                                 break;
 205                 }
 206                 if (list == NULL)
 207                         __connman_tethering_set_disabled();
 208         }
 209 }
 210
 211 static int set_tethering(struct connman_technology *technology,
 212                                 connman_bool_t enabled)
 213 {
 214         const char *ident, *passphrase, *bridge;
 215
 216         ident = technology->tethering_ident;
 217         passphrase = technology->tethering_passphrase;
 218
 219         if (technology->driver == NULL ||
 220                         technology->driver->set_tethering == NULL)
 221                 return -EOPNOTSUPP;
 222
 223         bridge = __connman_tethering_get_bridge();
 224         if (bridge == NULL)
 225                 return -EOPNOTSUPP;
 226
 227         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI &&
 228             (ident == NULL || passphrase == NULL))
 229                 return -EINVAL;
 230
 231         return technology->driver->set_tethering(technology, ident, passphrase,
 232                                                         bridge, enabled);
 233 }
 234
 235 void connman_technology_regdom_notify(struct connman_technology *technology,
 236                                                         const char *alpha2)
 237 {
 238         DBG("");
 239
 240         if (alpha2 == NULL)
 241                 connman_error("Failed to set regulatory domain");
 242         else
 243                 DBG("Regulatory domain set to %s", alpha2);
 244
 245         g_free(technology->regdom);
 246         technology->regdom = g_strdup(alpha2);
 247 }
 248
 249 static int set_regdom_by_device(struct connman_technology *technology,
 250                                                         const char *alpha2)
 251 {
 252         GSList *list;
 253
 254         for (list = technology->device_list; list; list = list->next) {
 255                 struct connman_device *device = list->data;
 256
 257                 if (connman_device_set_regdom(device, alpha2) != 0)
 258                         return -ENOTSUP;
 259         }
 260
 261         return 0;
 262 }
 263
 264 int connman_technology_set_regdom(const char *alpha2)
 265 {
 266         GSList *list;
 267
 268         for (list = technology_list; list; list = list->next) {
 269                 struct connman_technology *technology = list->data;
 270
 271                 if (set_regdom_by_device(technology, alpha2) != 0) {
 272                         if (technology->driver == NULL)
 273                                 continue;
 274
 275                         if (technology->driver->set_regdom != NULL)
 276                                 technology->driver->set_regdom(technology,
 277                                                                 alpha2);
 278                 }
 279         }
 280
 281         return 0;
 282 }
 283
 284 static void free_rfkill(gpointer data)
 285 {
 286         struct connman_rfkill *rfkill = data;
 287
 288         g_free(rfkill);
 289 }
 290
 291 static const char *get_name(enum connman_service_type type)
 292 {
 293         switch (type) {
 294         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 295         case CONNMAN_SERVICE_TYPE_SYSTEM:
 296         case CONNMAN_SERVICE_TYPE_GPS:
 297         case CONNMAN_SERVICE_TYPE_VPN:
 298         case CONNMAN_SERVICE_TYPE_GADGET:
 299                 break;
 300         case CONNMAN_SERVICE_TYPE_ETHERNET:
 301                 return "Wired";
 302         case CONNMAN_SERVICE_TYPE_WIFI:
 303                 return "WiFi";
 304         case CONNMAN_SERVICE_TYPE_WIMAX:
 305                 return "WiMAX";
 306         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 307                 return "Bluetooth";
 308         case CONNMAN_SERVICE_TYPE_CELLULAR:
 309                 return "Cellular";
 310         }
 311
 312         return NULL;
 313 }
 314
 315 static void technology_save(struct connman_technology *technology)
 316 {
 317         GKeyFile *keyfile;
 318         gchar *identifier;
 319
 320         DBG("technology %p", technology);
 321
 322         keyfile = __connman_storage_load_global();
 323         if (keyfile == NULL)
 324                 keyfile = g_key_file_new();
 325
 326         identifier = g_strdup_printf("%s", get_name(technology->type));
 327         if (identifier == NULL)
 328                 goto done;
 329
 330         g_key_file_set_boolean(keyfile, identifier, "Enable",
 331                                 technology->enable_persistent);
 332
 333         if (technology->tethering_ident != NULL)
 334                 g_key_file_set_string(keyfile, identifier,
 335                                         "Tethering.Identifier",
 336                                         technology->tethering_ident);
 337
 338         if (technology->tethering_passphrase != NULL)
 339                 g_key_file_set_string(keyfile, identifier,
 340                                         "Tethering.Passphrase",
 341                                         technology->tethering_passphrase);
 342
 343 done:
 344         g_free(identifier);
 345
 346         __connman_storage_save_global(keyfile);
 347
 348         g_key_file_free(keyfile);
 349
 350         return;
 351 }
 352
 353 static void technology_load(struct connman_technology *technology)
 354 {
 355         GKeyFile *keyfile;
 356         gchar *identifier;
 357         GError *error = NULL;
 358         connman_bool_t enable;
 359
 360         DBG("technology %p", technology);
 361
 362         keyfile = __connman_storage_load_global();
 363         /* Fallback on disabling technology if file not found. */
 364         if (keyfile == NULL) {
 365                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 366                         /* We enable ethernet by default */
 367                         technology->enable_persistent = TRUE;
 368                 else
 369                         technology->enable_persistent = FALSE;
 370                 return;
 371         }
 372
 373         identifier = g_strdup_printf("%s", get_name(technology->type));
 374         if (identifier == NULL)
 375                 goto done;
 376
 377         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 378         if (error == NULL)
 379                 technology->enable_persistent = enable;
 380         else {
 381                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 382                         technology->enable_persistent = TRUE;
 383                 else
 384                         technology->enable_persistent = FALSE;
 385
 386                 technology_save(technology);
 387                 g_clear_error(&error);
 388         }
 389
 390         technology->tethering_ident = g_key_file_get_string(keyfile,
 391                                 identifier, "Tethering.Identifier", NULL);
 392
 393         technology->tethering_passphrase = g_key_file_get_string(keyfile,
 394                                 identifier, "Tethering.Passphrase", NULL);
 395 done:
 396         g_free(identifier);
 397
 398         g_key_file_free(keyfile);
 399
 400         return;
 401 }
 402
 403 connman_bool_t __connman_technology_get_offlinemode(void)
 404 {
 405         return global_offlinemode;
 406 }
 407
 408 static void connman_technology_save_offlinemode()
 409 {
 410         GKeyFile *keyfile;
 411
 412         keyfile = __connman_storage_load_global();
 413         if (keyfile == NULL)
 414                 keyfile = g_key_file_new();
 415
 416         g_key_file_set_boolean(keyfile, "global",
 417                                         "OfflineMode", global_offlinemode);
 418
 419         __connman_storage_save_global(keyfile);
 420
 421         g_key_file_free(keyfile);
 422
 423         return;
 424 }
 425
 426 static connman_bool_t connman_technology_load_offlinemode()
 427 {
 428         GKeyFile *keyfile;
 429         GError *error = NULL;
 430         connman_bool_t offlinemode;
 431
 432         /* If there is a error, we enable offlinemode */
 433         keyfile = __connman_storage_load_global();
 434         if (keyfile == NULL)
 435                 return FALSE;
 436
 437         offlinemode = g_key_file_get_boolean(keyfile, "global",
 438                                                 "OfflineMode", &error);
 439         if (error != NULL) {
 440                 offlinemode = FALSE;
 441                 g_clear_error(&error);
 442         }
 443
 444         g_key_file_free(keyfile);
 445
 446         return offlinemode;
 447 }
 448
 449 static void append_properties(DBusMessageIter *iter,
 450                 struct connman_technology *technology)
 451 {
 452         DBusMessageIter dict;
 453         const char *str;
 454         connman_bool_t powered;
 455
 456         connman_dbus_dict_open(iter, &dict);
 457
 458         str = get_name(technology->type);
 459         if (str != NULL)
 460                 connman_dbus_dict_append_basic(&dict, "Name",
 461                                                 DBUS_TYPE_STRING, &str);
 462
 463         str = __connman_service_type2string(technology->type);
 464         if (str != NULL)
 465                 connman_dbus_dict_append_basic(&dict, "Type",
 466                                                 DBUS_TYPE_STRING, &str);
 467
 468         __sync_synchronize();
 469         if (technology->enabled > 0)
 470                 powered = TRUE;
 471         else
 472                 powered = FALSE;
 473         connman_dbus_dict_append_basic(&dict, "Powered",
 474                                         DBUS_TYPE_BOOLEAN, &powered);
 475
 476         connman_dbus_dict_append_basic(&dict, "Connected",
 477                                         DBUS_TYPE_BOOLEAN,
 478                                         &technology->connected);
 479
 480         connman_dbus_dict_append_basic(&dict, "Tethering",
 481                                         DBUS_TYPE_BOOLEAN,
 482                                         &technology->tethering);
 483
 484         if (technology->tethering_ident != NULL)
 485                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 486                                                 DBUS_TYPE_STRING,
 487                                                 &technology->tethering_ident);
 488
 489         if (technology->tethering_passphrase != NULL)
 490                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 491                                                 DBUS_TYPE_STRING,
 492                                                 &technology->tethering_passphrase);
 493
 494         connman_dbus_dict_close(iter, &dict);
 495 }
 496
 497 static void technology_added_signal(struct connman_technology *technology)
 498 {
 499         DBusMessage *signal;
 500         DBusMessageIter iter;
 501
 502         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 503                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 504         if (signal == NULL)
 505                 return;
 506
 507         dbus_message_iter_init_append(signal, &iter);
 508         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 509                                                         &technology->path);
 510         append_properties(&iter, technology);
 511
 512         dbus_connection_send(connection, signal, NULL);
 513         dbus_message_unref(signal);
 514 }
 515
 516 static void technology_removed_signal(struct connman_technology *technology)
 517 {
 518         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 519                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 520                         DBUS_TYPE_OBJECT_PATH, &technology->path,
 521                         DBUS_TYPE_INVALID);
 522 }
 523
 524 static DBusMessage *get_properties(DBusConnection *conn,
 525                                         DBusMessage *message, void *user_data)
 526 {
 527         struct connman_technology *technology = user_data;
 528         DBusMessage *reply;
 529         DBusMessageIter iter;
 530
 531         reply = dbus_message_new_method_return(message);
 532         if (reply == NULL)
 533                 return NULL;
 534
 535         dbus_message_iter_init_append(reply, &iter);
 536         append_properties(&iter, technology);
 537
 538         return reply;
 539 }
 540
 541 void __connman_technology_list_struct(DBusMessageIter *array)
 542 {
 543         GSList *list;
 544         DBusMessageIter entry;
 545
 546         for (list = technology_list; list; list = list->next) {
 547                 struct connman_technology *technology = list->data;
 548
 549                 if (technology->path == NULL)
 550                         continue;
 551
 552                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 553                                 NULL, &entry);
 554                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 555                                 &technology->path);
 556                 append_properties(&entry, technology);
 557                 dbus_message_iter_close_container(array, &entry);
 558         }
 559 }
 560
 561 static gboolean technology_pending_reply(gpointer user_data)
 562 {
 563         struct connman_technology *technology = user_data;
 564         DBusMessage *reply;
 565
 566         /* Power request timedout, send ETIMEDOUT. */
 567         if (technology->pending_reply != NULL) {
 568                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 569                 if (reply != NULL)
 570                         g_dbus_send_message(connection, reply);
 571
 572                 dbus_message_unref(technology->pending_reply);
 573                 technology->pending_reply = NULL;
 574                 technology->pending_timeout = 0;
 575         }
 576
 577         return FALSE;
 578 }
 579
 580 static int technology_enable(struct connman_technology *technology,
 581                                                 connman_bool_t hardblock)
 582 {
 583         GSList *list;
 584         int err = 0;
 585
 586         DBG("technology %p enable", technology);
 587
 588         __sync_synchronize();
 589         if (technology->enabled > 0) {
 590                 err = -EALREADY;
 591                 goto done;
 592         }
 593
 594         if (technology->pending_reply != NULL) {
 595                 err = -EBUSY;
 596                 goto done;
 597         }
 598
 599         if (hardblock == TRUE && technology->enable_persistent == FALSE)
 600                 goto done;
 601
 602         __connman_rfkill_block(technology->type, FALSE);
 603
 604         for (list = technology->device_list; list; list = list->next) {
 605                 struct connman_device *device = list->data;
 606
 607                 err = __connman_device_enable(device);
 608         }
 609
 610 done:
 611         return err;
 612 }
 613
 614 static int technology_disable(struct connman_technology *technology,
 615                                                 connman_bool_t hardblock)
 616 {
 617         GSList *list;
 618         int err = 0;
 619
 620         DBG("technology %p disable", technology);
 621
 622         __sync_synchronize();
 623         if (technology->enabled == 0) {
 624                 err = -EALREADY;
 625                 goto done;
 626         }
 627
 628         if (technology->pending_reply != NULL) {
 629                 err = -EBUSY;
 630                 goto done;
 631         }
 632
 633         if (technology->tethering == TRUE)
 634                 set_tethering(technology, FALSE);
 635
 636         if (hardblock == FALSE)
 637                 __connman_rfkill_block(technology->type, TRUE);
 638
 639         for (list = technology->device_list; list; list = list->next) {
 640                 struct connman_device *device = list->data;
 641
 642                 err = __connman_device_disable(device);
 643         }
 644
 645 done:
 646         return err;
 647 }
 648
 649 static DBusMessage *set_powered(struct connman_technology *technology,
 650                                 DBusMessage *msg, connman_bool_t powered)
 651 {
 652         DBusMessage *reply = NULL;
 653         int err = 0;
 654
 655         if (technology->hardblocked == TRUE) {
 656                 err = -EACCES;
 657                 goto make_reply;
 658         }
 659
 660         if (powered == TRUE)
 661                 err = technology_enable(technology, FALSE);
 662         else
 663                 err = technology_disable(technology, FALSE);
 664
 665         if (err != -EBUSY) {
 666                 technology->enable_persistent = powered;
 667                 technology_save(technology);
 668         }
 669
 670 make_reply:
 671         if (err == -EINPROGRESS) {
 672                 technology->pending_reply = dbus_message_ref(msg);
 673                 technology->pending_timeout = g_timeout_add_seconds(10,
 674                                         technology_pending_reply, technology);
 675         } else if (err == -EALREADY) {
 676                 if (powered == TRUE)
 677                         reply = __connman_error_already_enabled(msg);
 678                 else
 679                         reply = __connman_error_already_disabled(msg);
 680         } else if (err < 0)
 681                 reply = __connman_error_failed(msg, -err);
 682         else
 683                 reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 684
 685         return reply;
 686 }
 687
 688 static DBusMessage *set_property(DBusConnection *conn,
 689                                         DBusMessage *msg, void *data)
 690 {
 691         struct connman_technology *technology = data;
 692         DBusMessageIter iter, value;
 693         const char *name;
 694         int type;
 695
 696         DBG("conn %p", conn);
 697
 698         if (dbus_message_iter_init(msg, &iter) == FALSE)
 699                 return __connman_error_invalid_arguments(msg);
 700
 701         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 702                 return __connman_error_invalid_arguments(msg);
 703
 704         dbus_message_iter_get_basic(&iter, &name);
 705         dbus_message_iter_next(&iter);
 706
 707         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 708                 return __connman_error_invalid_arguments(msg);
 709
 710         dbus_message_iter_recurse(&iter, &value);
 711
 712         type = dbus_message_iter_get_arg_type(&value);
 713
 714         DBG("property %s", name);
 715
 716         if (g_str_equal(name, "Tethering") == TRUE) {
 717                 int err;
 718                 connman_bool_t tethering;
 719
 720                 if (type != DBUS_TYPE_BOOLEAN)
 721                         return __connman_error_invalid_arguments(msg);
 722
 723                 dbus_message_iter_get_basic(&value, &tethering);
 724
 725                 if (technology->tethering == tethering) {
 726                         if (tethering == FALSE)
 727                                 return __connman_error_already_disabled(msg);
 728                         else
 729                                 return __connman_error_already_enabled(msg);
 730                 }
 731
 732                 err = set_tethering(technology, tethering);
 733                 if (err < 0)
 734                         return __connman_error_failed(msg, -err);
 735
 736         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 737                 const char *str;
 738
 739                 dbus_message_iter_get_basic(&value, &str);
 740
 741                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 742                         return __connman_error_not_supported(msg);
 743
 744                 if (strlen(str) < 1 || strlen(str) > 32)
 745                         return __connman_error_invalid_arguments(msg);
 746
 747                 if (g_strcmp0(technology->tethering_ident, str) != 0) {
 748                         g_free(technology->tethering_ident);
 749                         technology->tethering_ident = g_strdup(str);
 750                         technology_save(technology);
 751
 752                         connman_dbus_property_changed_basic(technology->path,
 753                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 754                                                 "TetheringIdentifier",
 755                                                 DBUS_TYPE_STRING,
 756                                                 &technology->tethering_ident);
 757                 }
 758         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 759                 const char *str;
 760
 761                 dbus_message_iter_get_basic(&value, &str);
 762
 763                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 764                         return __connman_error_not_supported(msg);
 765
 766                 if (strlen(str) < 8 || strlen(str) > 63)
 767                         return __connman_error_passphrase_required(msg);
 768
 769                 if (g_strcmp0(technology->tethering_passphrase, str) != 0) {
 770                         g_free(technology->tethering_passphrase);
 771                         technology->tethering_passphrase = g_strdup(str);
 772                         technology_save(technology);
 773
 774                         connman_dbus_property_changed_basic(technology->path,
 775                                         CONNMAN_TECHNOLOGY_INTERFACE,
 776                                         "TetheringPassphrase",
 777                                         DBUS_TYPE_STRING,
 778                                         &technology->tethering_passphrase);
 779                 }
 780         } else if (g_str_equal(name, "Powered") == TRUE) {
 781                 connman_bool_t enable;
 782
 783                 if (type != DBUS_TYPE_BOOLEAN)
 784                         return __connman_error_invalid_arguments(msg);
 785
 786                 dbus_message_iter_get_basic(&value, &enable);
 787
 788                 return set_powered(technology, msg, enable);
 789         } else
 790                 return __connman_error_invalid_property(msg);
 791
 792         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 793 }
 794
 795 static struct connman_technology *technology_find(enum connman_service_type type)
 796 {
 797         GSList *list;
 798
 799         DBG("type %d", type);
 800
 801         for (list = technology_list; list; list = list->next) {
 802                 struct connman_technology *technology = list->data;
 803
 804                 if (technology->type == type)
 805                         return technology;
 806         }
 807
 808         return NULL;
 809 }
 810
 811 static void reply_scan_pending(struct connman_technology *technology, int err)
 812 {
 813         DBusMessage *reply;
 814
 815         DBG("technology %p err %d", technology, err);
 816
 817         while (technology->scan_pending != NULL) {
 818                 DBusMessage *msg = technology->scan_pending->data;
 819
 820                 DBG("reply to %s", dbus_message_get_sender(msg));
 821
 822                 if (err == 0)
 823                         reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 824                 else
 825                         reply = __connman_error_failed(msg, -err);
 826                 g_dbus_send_message(connection, reply);
 827                 dbus_message_unref(msg);
 828
 829                 technology->scan_pending =
 830                         g_slist_delete_link(technology->scan_pending,
 831                                         technology->scan_pending);
 832         }
 833 }
 834
 835 void __connman_technology_scan_started(struct connman_device *device)
 836 {
 837         DBG("device %p", device);
 838 }
 839
 840 void __connman_technology_scan_stopped(struct connman_device *device)
 841 {
 842         int count = 0;
 843         struct connman_technology *technology;
 844         enum connman_service_type type;
 845         GSList *list;
 846
 847         type = __connman_device_get_service_type(device);
 848         technology = technology_find(type);
 849
 850         DBG("technology %p device %p", technology, device);
 851
 852         if (technology == NULL)
 853                 return;
 854
 855         for (list = technology->device_list; list != NULL; list = list->next) {
 856                 struct connman_device *other_device = list->data;
 857
 858                 if (device == other_device)
 859                         continue;
 860
 861                 if (__connman_device_get_service_type(other_device) != type)
 862                         continue;
 863
 864                 if (connman_device_get_scanning(other_device) == TRUE)
 865                         count += 1;
 866         }
 867
 868         if (count == 0)
 869                 reply_scan_pending(technology, 0);
 870 }
 871
 872 void __connman_technology_notify_regdom_by_device(struct connman_device *device,
 873                                                 int result, const char *alpha2)
 874 {
 875         struct connman_technology *technology;
 876         enum connman_service_type type;
 877
 878         type = __connman_device_get_service_type(device);
 879         technology = technology_find(type);
 880
 881         if (technology == NULL)
 882                 return;
 883
 884         if (result < 0) {
 885                 if (technology->driver != NULL &&
 886                                 technology->driver->set_regdom != NULL) {
 887                         technology->driver->set_regdom(technology, alpha2);
 888                         return;
 889                 }
 890
 891                 alpha2 = NULL;
 892         }
 893
 894         connman_technology_regdom_notify(technology, alpha2);
 895 }
 896
 897 static DBusMessage *scan(DBusConnection *conn, DBusMessage *msg, void *data)
 898 {
 899         struct connman_technology *technology = data;
 900         int err;
 901
 902         DBG ("technology %p request from %s", technology,
 903                         dbus_message_get_sender(msg));
 904
 905         dbus_message_ref(msg);
 906         technology->scan_pending =
 907                 g_slist_prepend(technology->scan_pending, msg);
 908
 909         err = __connman_device_request_scan(technology->type);
 910         if (err < 0)
 911                 reply_scan_pending(technology, err);
 912
 913         return NULL;
 914 }
 915
 916 static const GDBusMethodTable technology_methods[] = {
 917         { GDBUS_DEPRECATED_METHOD("GetProperties",
 918                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
 919                         get_properties) },
 920         { GDBUS_ASYNC_METHOD("SetProperty",
 921                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
 922                         NULL, set_property) },
 923         { GDBUS_ASYNC_METHOD("Scan", NULL, NULL, scan) },
 924         { },
 925 };
 926
 927 static const GDBusSignalTable technology_signals[] = {
 928         { GDBUS_SIGNAL("PropertyChanged",
 929                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
 930         { },
 931 };
 932
 933 static struct connman_technology *technology_get(enum connman_service_type type)
 934 {
 935         struct connman_technology *technology;
 936         struct connman_technology_driver *driver = NULL;
 937         const char *str;
 938         GSList *list;
 939         int err;
 940
 941         DBG("type %d", type);
 942
 943         str = __connman_service_type2string(type);
 944         if (str == NULL)
 945                 return NULL;
 946
 947         technology = technology_find(type);
 948         if (technology != NULL) {
 949                 __sync_fetch_and_add(&technology->refcount, 1);
 950                 return technology;
 951         }
 952
 953         /* First check if we have a driver for this technology type */
 954         for (list = driver_list; list; list = list->next) {
 955                 driver = list->data;
 956
 957                 if (driver->type == type)
 958                         break;
 959                 else
 960                         driver = NULL;
 961         }
 962
 963         if (driver == NULL) {
 964                 DBG("No matching driver found for %s.",
 965                                 __connman_service_type2string(type));
 966                 return NULL;
 967         }
 968
 969         technology = g_try_new0(struct connman_technology, 1);
 970         if (technology == NULL)
 971                 return NULL;
 972
 973         technology->refcount = 1;
 974
 975         if (type == CONNMAN_SERVICE_TYPE_ETHERNET)
 976                 technology->hardblocked = FALSE;
 977         else
 978                 technology->hardblocked = TRUE;
 979
 980         technology->type = type;
 981         technology->path = g_strdup_printf("%s/technology/%s",
 982                                                         CONNMAN_PATH, str);
 983
 984         technology->device_list = NULL;
 985
 986         technology->pending_reply = NULL;
 987
 988         technology_load(technology);
 989
 990         if (g_dbus_register_interface(connection, technology->path,
 991                                         CONNMAN_TECHNOLOGY_INTERFACE,
 992                                         technology_methods, technology_signals,
 993                                         NULL, technology, NULL) == FALSE) {
 994                 connman_error("Failed to register %s", technology->path);
 995                 g_free(technology);
 996                 return NULL;
 997         }
 998
 999         technology_list = g_slist_prepend(technology_list, technology);
1000
1001         technology_added_signal(technology);
1002
1003         technology->driver = driver;
1004         err = driver->probe(technology);
1005         if (err != 0)
1006                 DBG("Driver probe failed for technology %p", technology);
1007
1008         DBG("technology %p", technology);
1009
1010         return technology;
1011 }
1012
1013 static void technology_put(struct connman_technology *technology)
1014 {
1015         DBG("technology %p", technology);
1016
1017         if (__sync_sub_and_fetch(&technology->refcount, 1) > 0)
1018                 return;
1019
1020         reply_scan_pending(technology, -EINTR);
1021
1022         if (technology->driver) {
1023                 technology->driver->remove(technology);
1024                 technology->driver = NULL;
1025         }
1026
1027         technology_list = g_slist_remove(technology_list, technology);
1028
1029         technology_removed_signal(technology);
1030
1031         g_dbus_unregister_interface(connection, technology->path,
1032                                                 CONNMAN_TECHNOLOGY_INTERFACE);
1033
1034         g_slist_free(technology->device_list);
1035
1036         g_free(technology->path);
1037         g_free(technology->regdom);
1038         g_free(technology->tethering_ident);
1039         g_free(technology->tethering_passphrase);
1040         g_free(technology);
1041 }
1042
1043 void __connman_technology_add_interface(enum connman_service_type type,
1044                                 int index, const char *name, const char *ident)
1045 {
1046         struct connman_technology *technology;
1047
1048         switch (type) {
1049         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1050         case CONNMAN_SERVICE_TYPE_SYSTEM:
1051                 return;
1052         case CONNMAN_SERVICE_TYPE_ETHERNET:
1053         case CONNMAN_SERVICE_TYPE_WIFI:
1054         case CONNMAN_SERVICE_TYPE_WIMAX:
1055         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1056         case CONNMAN_SERVICE_TYPE_CELLULAR:
1057         case CONNMAN_SERVICE_TYPE_GPS:
1058         case CONNMAN_SERVICE_TYPE_VPN:
1059         case CONNMAN_SERVICE_TYPE_GADGET:
1060                 break;
1061         }
1062
1063         connman_info("Adding interface %s [ %s ]", name,
1064                                 __connman_service_type2string(type));
1065
1066         technology = technology_find(type);
1067
1068         if (technology == NULL || technology->driver == NULL
1069                         || technology->driver->add_interface == NULL)
1070                 return;
1071
1072         technology->driver->add_interface(technology,
1073                                         index, name, ident);
1074 }
1075
1076 void __connman_technology_remove_interface(enum connman_service_type type,
1077                                 int index, const char *name, const char *ident)
1078 {
1079         struct connman_technology *technology;
1080
1081         switch (type) {
1082         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1083         case CONNMAN_SERVICE_TYPE_SYSTEM:
1084                 return;
1085         case CONNMAN_SERVICE_TYPE_ETHERNET:
1086         case CONNMAN_SERVICE_TYPE_WIFI:
1087         case CONNMAN_SERVICE_TYPE_WIMAX:
1088         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1089         case CONNMAN_SERVICE_TYPE_CELLULAR:
1090         case CONNMAN_SERVICE_TYPE_GPS:
1091         case CONNMAN_SERVICE_TYPE_VPN:
1092         case CONNMAN_SERVICE_TYPE_GADGET:
1093                 break;
1094         }
1095
1096         connman_info("Remove interface %s [ %s ]", name,
1097                                 __connman_service_type2string(type));
1098
1099         technology = technology_find(type);
1100
1101         if (technology == NULL || technology->driver == NULL)
1102                 return;
1103
1104         if (technology->driver->remove_interface)
1105                 technology->driver->remove_interface(technology, index);
1106 }
1107
1108 int __connman_technology_add_device(struct connman_device *device)
1109 {
1110         struct connman_technology *technology;
1111         enum connman_service_type type;
1112
1113         DBG("device %p", device);
1114
1115         type = __connman_device_get_service_type(device);
1116
1117         technology = technology_get(type);
1118         if (technology == NULL) {
1119                 /*
1120                  * Since no driver can be found for this device at the moment we
1121                  * add it to the techless device list.
1122                 */
1123                 techless_device_list = g_slist_prepend(techless_device_list,
1124                                                                 device);
1125
1126                 return -ENXIO;
1127         }
1128
1129         if (technology->enable_persistent &&
1130                                         global_offlinemode == FALSE &&
1131                                         technology->hardblocked == FALSE) {
1132                 int err = __connman_device_enable(device);
1133                 /*
1134                  * connman_technology_add_device() calls __connman_device_enable()
1135                  * but since the device is already enabled, the calls does not
1136                  * propagate through to connman_technology_enabled via
1137                  * connman_device_set_powered.
1138                  */
1139                 if (err == -EALREADY)
1140                         __connman_technology_enabled(type);
1141         }
1142         /* if technology persistent state is offline or hardblocked */
1143         if (technology->enable_persistent == FALSE ||
1144                                         technology->hardblocked == TRUE)
1145                 __connman_device_disable(device);
1146
1147         technology->device_list = g_slist_prepend(technology->device_list,
1148                                                                 device);
1149
1150         return 0;
1151 }
1152
1153 int __connman_technology_remove_device(struct connman_device *device)
1154 {
1155         struct connman_technology *technology;
1156         enum connman_service_type type;
1157
1158         DBG("device %p", device);
1159
1160         type = __connman_device_get_service_type(device);
1161
1162         technology = technology_find(type);
1163         if (technology == NULL) {
1164                 techless_device_list = g_slist_remove(techless_device_list,
1165                                                                 device);
1166                 return -ENXIO;
1167         }
1168
1169         technology->device_list = g_slist_remove(technology->device_list,
1170                                                                 device);
1171         technology_put(technology);
1172
1173         return 0;
1174 }
1175
1176 static void powered_changed(struct connman_technology *technology)
1177 {
1178         connman_bool_t powered;
1179
1180         __sync_synchronize();
1181         if (technology->enabled >0)
1182                 powered = TRUE;
1183         else
1184                 powered = FALSE;
1185
1186         connman_dbus_property_changed_basic(technology->path,
1187                         CONNMAN_TECHNOLOGY_INTERFACE, "Powered",
1188                         DBUS_TYPE_BOOLEAN, &powered);
1189 }
1190
1191 int __connman_technology_enabled(enum connman_service_type type)
1192 {
1193         struct connman_technology *technology;
1194
1195         technology = technology_find(type);
1196         if (technology == NULL)
1197                 return -ENXIO;
1198
1199         if (__sync_fetch_and_add(&technology->enabled, 1) != 0)
1200                 return -EALREADY;
1201
1202         powered_changed(technology);
1203
1204         if (technology->pending_reply != NULL) {
1205                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
1206                 dbus_message_unref(technology->pending_reply);
1207                 g_source_remove(technology->pending_timeout);
1208                 technology->pending_reply = NULL;
1209                 technology->pending_timeout = 0;
1210         }
1211
1212         return 0;
1213 }
1214
1215 int __connman_technology_disabled(enum connman_service_type type)
1216 {
1217         struct connman_technology *technology;
1218
1219         technology = technology_find(type);
1220         if (technology == NULL)
1221                 return -ENXIO;
1222
1223         if (__sync_fetch_and_sub(&technology->enabled, 1) != 1)
1224                 return -EINPROGRESS;
1225
1226         if (technology->pending_reply != NULL) {
1227                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
1228                 dbus_message_unref(technology->pending_reply);
1229                 g_source_remove(technology->pending_timeout);
1230                 technology->pending_reply = NULL;
1231                 technology->pending_timeout = 0;
1232         }
1233
1234         powered_changed(technology);
1235
1236         return 0;
1237 }
1238
1239 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
1240 {
1241         GSList *list;
1242         int err = -EINVAL;
1243
1244         if (global_offlinemode == offlinemode)
1245                 return 0;
1246
1247         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1248
1249         /*
1250          * This is a bit tricky. When you set offlinemode, there is no
1251          * way to differentiate between attempting offline mode and
1252          * resuming offlinemode from last saved profile. We need that
1253          * information in rfkill_update, otherwise it falls back on the
1254          * technology's persistent state. Hence we set the offline mode here
1255          * but save it & call the notifier only if its successful.
1256          */
1257
1258         global_offlinemode = offlinemode;
1259
1260         /* Traverse technology list, enable/disable each technology. */
1261         for (list = technology_list; list; list = list->next) {
1262                 struct connman_technology *technology = list->data;
1263
1264                 if (offlinemode)
1265                         err = technology_disable(technology, FALSE);
1266
1267                 if (!offlinemode && technology->enable_persistent)
1268                         err = technology_enable(technology, FALSE);
1269         }
1270
1271         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1272                 connman_technology_save_offlinemode();
1273                 __connman_notifier_offlinemode(offlinemode);
1274         } else
1275                 global_offlinemode = connman_technology_load_offlinemode();
1276
1277         return err;
1278 }
1279
1280 void __connman_technology_set_connected(enum connman_service_type type,
1281                 connman_bool_t connected)
1282 {
1283         struct connman_technology *technology;
1284
1285         technology = technology_find(type);
1286         if (technology == NULL)
1287                 return;
1288
1289         DBG("technology %p connected %d", technology, connected);
1290
1291         technology->connected = connected;
1292
1293         connman_dbus_property_changed_basic(technology->path,
1294                         CONNMAN_TECHNOLOGY_INTERFACE, "Connected",
1295                         DBUS_TYPE_BOOLEAN, &connected);
1296 }
1297
1298 static void technology_apply_hardblock_change(struct connman_technology *technology,
1299                                                 connman_bool_t hardblock)
1300 {
1301         gboolean apply = TRUE;
1302         GList *start, *list;
1303
1304         if (technology->hardblocked == hardblock)
1305                 return;
1306
1307         start = g_hash_table_get_values(rfkill_list);
1308         for (list = start; list != NULL; list = list->next) {
1309                 struct connman_rfkill *rfkill = list->data;
1310
1311                 if (rfkill->type != technology->type)
1312                         continue;
1313
1314                 if (rfkill->hardblock != hardblock)
1315                         apply = FALSE;
1316         }
1317
1318         g_list_free(start);
1319
1320         if (apply == FALSE)
1321                 return;
1322
1323         technology->hardblocked = hardblock;
1324
1325         if (hardblock == TRUE) {
1326                 DBG("%s is switched off.", get_name(technology->type));
1327                 technology_disable(technology, TRUE);
1328         } else
1329                 technology_enable(technology, TRUE);
1330
1331 }
1332
1333 int __connman_technology_add_rfkill(unsigned int index,
1334                                         enum connman_service_type type,
1335                                                 connman_bool_t softblock,
1336                                                 connman_bool_t hardblock)
1337 {
1338         struct connman_technology *technology;
1339         struct connman_rfkill *rfkill;
1340
1341         DBG("index %u type %d soft %u hard %u", index, type,
1342                                                         softblock, hardblock);
1343
1344         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1345         if (rfkill != NULL)
1346                 goto done;
1347
1348         rfkill = g_try_new0(struct connman_rfkill, 1);
1349         if (rfkill == NULL)
1350                 return -ENOMEM;
1351
1352         rfkill->index = index;
1353         rfkill->type = type;
1354         rfkill->softblock = softblock;
1355         rfkill->hardblock = hardblock;
1356
1357         g_hash_table_insert(rfkill_list, GINT_TO_POINTER(index), rfkill);
1358
1359 done:
1360         technology = technology_get(type);
1361         /* If there is no driver for this type, ignore it. */
1362         if (technology == NULL)
1363                 return -ENXIO;
1364
1365         technology_apply_hardblock_change(technology, hardblock);
1366
1367         /*
1368          * If Offline mode is on, we softblock the device if it isnt already.
1369          * If Offline mode is off, we rely on the persistent state of tech.
1370          */
1371         if (global_offlinemode) {
1372                 if (!softblock)
1373                         return __connman_rfkill_block(type, TRUE);
1374         } else {
1375                 if (technology->enable_persistent && softblock)
1376                         return __connman_rfkill_block(type, FALSE);
1377                 /* if technology persistent state is offline */
1378                 if (!technology->enable_persistent && !softblock)
1379                         return __connman_rfkill_block(type, TRUE);
1380         }
1381
1382         return 0;
1383 }
1384
1385 int __connman_technology_update_rfkill(unsigned int index,
1386                                         enum connman_service_type type,
1387                                                 connman_bool_t softblock,
1388                                                 connman_bool_t hardblock)
1389 {
1390         struct connman_technology *technology;
1391         struct connman_rfkill *rfkill;
1392
1393         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1394
1395         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1396         if (rfkill == NULL)
1397                 return -ENXIO;
1398
1399         if (rfkill->softblock == softblock &&
1400                 rfkill->hardblock == hardblock)
1401                 return 0;
1402
1403         rfkill->softblock = softblock;
1404         rfkill->hardblock = hardblock;
1405
1406         technology = technology_find(type);
1407         /* If there is no driver for this type, ignore it. */
1408         if (technology == NULL)
1409                 return -ENXIO;
1410
1411         technology_apply_hardblock_change(technology, hardblock);
1412
1413         if (!global_offlinemode) {
1414                 if (technology->enable_persistent && softblock)
1415                         return __connman_rfkill_block(type, FALSE);
1416                 if (!technology->enable_persistent && !softblock)
1417                         return __connman_rfkill_block(type, TRUE);
1418         }
1419
1420         return 0;
1421 }
1422
1423 int __connman_technology_remove_rfkill(unsigned int index,
1424                                         enum connman_service_type type)
1425 {
1426         struct connman_technology *technology;
1427         struct connman_rfkill *rfkill;
1428
1429         DBG("index %u", index);
1430
1431         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1432         if (rfkill == NULL)
1433                 return -ENXIO;
1434
1435         g_hash_table_remove(rfkill_list, GINT_TO_POINTER(index));
1436
1437         technology = technology_find(type);
1438         if (technology == NULL)
1439                 return -ENXIO;
1440
1441         technology_put(technology);
1442
1443         return 0;
1444 }
1445
1446 int __connman_technology_init(void)
1447 {
1448         DBG("");
1449
1450         connection = connman_dbus_get_connection();
1451
1452         rfkill_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1453                                                         NULL, free_rfkill);
1454
1455         global_offlinemode = connman_technology_load_offlinemode();
1456
1457         /* This will create settings file if it is missing */
1458         connman_technology_save_offlinemode();
1459
1460         return 0;
1461 }
1462
1463 void __connman_technology_cleanup(void)
1464 {
1465         DBG("");
1466
1467         g_hash_table_destroy(rfkill_list);
1468
1469         dbus_connection_unref(connection);
1470 }