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         connman_bool_t 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 rfkill_driven;
  77         connman_bool_t softblocked;
  78         connman_bool_t hardblocked;
  79         connman_bool_t dbus_registered;
  80 };
  81
  82 static GSList *driver_list = NULL;
  83
  84 static gint compare_priority(gconstpointer a, gconstpointer b)
  85 {
  86         const struct connman_technology_driver *driver1 = a;
  87         const struct connman_technology_driver *driver2 = b;
  88
  89         return driver2->priority - driver1->priority;
  90 }
  91
  92 static void rfkill_check(gpointer key, gpointer value, gpointer user_data)
  93 {
  94         struct connman_rfkill *rfkill = value;
  95         enum connman_service_type type = GPOINTER_TO_INT(user_data);
  96
  97         /* Calling _technology_rfkill_add will update the tech. */
  98         if (rfkill->type == type)
  99                 __connman_technology_add_rfkill(rfkill->index, type,
 100                                 rfkill->softblock, rfkill->hardblock);
 101 }
 102
 103 /**
 104  * connman_technology_driver_register:
 105  * @driver: Technology driver definition
 106  *
 107  * Register a new technology driver
 108  *
 109  * Returns: %0 on success
 110  */
 111 int connman_technology_driver_register(struct connman_technology_driver *driver)
 112 {
 113         GSList *list;
 114         struct connman_device *device;
 115         enum connman_service_type type;
 116
 117         DBG("Registering %s driver", driver->name);
 118
 119         driver_list = g_slist_insert_sorted(driver_list, driver,
 120                                                         compare_priority);
 121
 122         if (techless_device_list == NULL)
 123                 goto check_rfkill;
 124
 125         /*
 126          * Check for technology less devices if this driver
 127          * can service any of them.
 128         */
 129         for (list = techless_device_list; list; list = list->next) {
 130                 device = list->data;
 131
 132                 type = __connman_device_get_service_type(device);
 133                 if (type != driver->type)
 134                         continue;
 135
 136                 techless_device_list = g_slist_remove(techless_device_list,
 137                                                                 device);
 138
 139                 __connman_technology_add_device(device);
 140         }
 141
 142 check_rfkill:
 143         /* Check for orphaned rfkill switches. */
 144         g_hash_table_foreach(rfkill_list, rfkill_check,
 145                                         GINT_TO_POINTER(driver->type));
 146
 147         return 0;
 148 }
 149
 150 /**
 151  * connman_technology_driver_unregister:
 152  * @driver: Technology driver definition
 153  *
 154  * Remove a previously registered technology driver
 155  */
 156 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 157 {
 158         GSList *list;
 159         struct connman_technology *technology;
 160
 161         DBG("Unregistering driver %p name %s", driver, driver->name);
 162
 163         for (list = technology_list; list; list = list->next) {
 164                 technology = list->data;
 165
 166                 if (technology->driver == NULL)
 167                         continue;
 168
 169                 if (technology->type == driver->type) {
 170                         technology->driver->remove(technology);
 171                         technology->driver = NULL;
 172                 }
 173         }
 174
 175         driver_list = g_slist_remove(driver_list, driver);
 176 }
 177
 178 static void tethering_changed(struct connman_technology *technology)
 179 {
 180         connman_bool_t tethering = technology->tethering;
 181
 182         connman_dbus_property_changed_basic(technology->path,
 183                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 184                                                 DBUS_TYPE_BOOLEAN, &tethering);
 185 }
 186
 187 void connman_technology_tethering_notify(struct connman_technology *technology,
 188                                                         connman_bool_t enabled)
 189 {
 190         GSList *list;
 191
 192         DBG("technology %p enabled %u", technology, enabled);
 193
 194         if (technology->tethering == enabled)
 195                 return;
 196
 197         technology->tethering = enabled;
 198
 199         tethering_changed(technology);
 200
 201         if (enabled == TRUE)
 202                 __connman_tethering_set_enabled();
 203         else {
 204                 for (list = technology_list; list; list = list->next) {
 205                         struct connman_technology *other_tech = list->data;
 206                         if (other_tech->tethering == TRUE)
 207                                 break;
 208                 }
 209                 if (list == NULL)
 210                         __connman_tethering_set_disabled();
 211         }
 212 }
 213
 214 static int set_tethering(struct connman_technology *technology,
 215                                 connman_bool_t enabled)
 216 {
 217         const char *ident, *passphrase, *bridge;
 218
 219         ident = technology->tethering_ident;
 220         passphrase = technology->tethering_passphrase;
 221
 222         if (technology->driver == NULL ||
 223                         technology->driver->set_tethering == NULL)
 224                 return -EOPNOTSUPP;
 225
 226         bridge = __connman_tethering_get_bridge();
 227         if (bridge == NULL)
 228                 return -EOPNOTSUPP;
 229
 230         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI &&
 231             (ident == NULL || passphrase == NULL))
 232                 return -EINVAL;
 233
 234         return technology->driver->set_tethering(technology, ident, passphrase,
 235                                                         bridge, enabled);
 236 }
 237
 238 void connman_technology_regdom_notify(struct connman_technology *technology,
 239                                                         const char *alpha2)
 240 {
 241         DBG("");
 242
 243         if (alpha2 == NULL)
 244                 connman_error("Failed to set regulatory domain");
 245         else
 246                 DBG("Regulatory domain set to %s", alpha2);
 247
 248         g_free(technology->regdom);
 249         technology->regdom = g_strdup(alpha2);
 250 }
 251
 252 static int set_regdom_by_device(struct connman_technology *technology,
 253                                                         const char *alpha2)
 254 {
 255         GSList *list;
 256
 257         for (list = technology->device_list; list; list = list->next) {
 258                 struct connman_device *device = list->data;
 259
 260                 if (connman_device_set_regdom(device, alpha2) != 0)
 261                         return -ENOTSUP;
 262         }
 263
 264         return 0;
 265 }
 266
 267 int connman_technology_set_regdom(const char *alpha2)
 268 {
 269         GSList *list;
 270
 271         for (list = technology_list; list; list = list->next) {
 272                 struct connman_technology *technology = list->data;
 273
 274                 if (set_regdom_by_device(technology, alpha2) != 0) {
 275                         if (technology->driver == NULL)
 276                                 continue;
 277
 278                         if (technology->driver->set_regdom != NULL)
 279                                 technology->driver->set_regdom(technology,
 280                                                                 alpha2);
 281                 }
 282         }
 283
 284         return 0;
 285 }
 286
 287 static void free_rfkill(gpointer data)
 288 {
 289         struct connman_rfkill *rfkill = data;
 290
 291         g_free(rfkill);
 292 }
 293
 294 static const char *get_name(enum connman_service_type type)
 295 {
 296         switch (type) {
 297         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 298         case CONNMAN_SERVICE_TYPE_SYSTEM:
 299         case CONNMAN_SERVICE_TYPE_GPS:
 300         case CONNMAN_SERVICE_TYPE_VPN:
 301         case CONNMAN_SERVICE_TYPE_GADGET:
 302                 break;
 303         case CONNMAN_SERVICE_TYPE_ETHERNET:
 304                 return "Wired";
 305         case CONNMAN_SERVICE_TYPE_WIFI:
 306                 return "WiFi";
 307         case CONNMAN_SERVICE_TYPE_WIMAX:
 308                 return "WiMAX";
 309         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 310                 return "Bluetooth";
 311         case CONNMAN_SERVICE_TYPE_CELLULAR:
 312                 return "Cellular";
 313         }
 314
 315         return NULL;
 316 }
 317
 318 static void technology_save(struct connman_technology *technology)
 319 {
 320         GKeyFile *keyfile;
 321         gchar *identifier;
 322
 323         DBG("technology %p", technology);
 324
 325         keyfile = __connman_storage_load_global();
 326         if (keyfile == NULL)
 327                 keyfile = g_key_file_new();
 328
 329         identifier = g_strdup_printf("%s", get_name(technology->type));
 330         if (identifier == NULL)
 331                 goto done;
 332
 333         g_key_file_set_boolean(keyfile, identifier, "Enable",
 334                                 technology->enable_persistent);
 335
 336         if (technology->tethering_ident != NULL)
 337                 g_key_file_set_string(keyfile, identifier,
 338                                         "Tethering.Identifier",
 339                                         technology->tethering_ident);
 340
 341         if (technology->tethering_passphrase != NULL)
 342                 g_key_file_set_string(keyfile, identifier,
 343                                         "Tethering.Passphrase",
 344                                         technology->tethering_passphrase);
 345
 346 done:
 347         g_free(identifier);
 348
 349         __connman_storage_save_global(keyfile);
 350
 351         g_key_file_free(keyfile);
 352
 353         return;
 354 }
 355
 356 static void technology_load(struct connman_technology *technology)
 357 {
 358         GKeyFile *keyfile;
 359         gchar *identifier;
 360         GError *error = NULL;
 361         connman_bool_t enable;
 362
 363         DBG("technology %p", technology);
 364
 365         keyfile = __connman_storage_load_global();
 366         /* Fallback on disabling technology if file not found. */
 367         if (keyfile == NULL) {
 368                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 369                         /* We enable ethernet by default */
 370                         technology->enable_persistent = TRUE;
 371                 else
 372                         technology->enable_persistent = FALSE;
 373                 return;
 374         }
 375
 376         identifier = g_strdup_printf("%s", get_name(technology->type));
 377         if (identifier == NULL)
 378                 goto done;
 379
 380         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 381         if (error == NULL)
 382                 technology->enable_persistent = enable;
 383         else {
 384                 if (technology->type == CONNMAN_SERVICE_TYPE_ETHERNET)
 385                         technology->enable_persistent = TRUE;
 386                 else
 387                         technology->enable_persistent = FALSE;
 388
 389                 technology_save(technology);
 390                 g_clear_error(&error);
 391         }
 392
 393         technology->tethering_ident = g_key_file_get_string(keyfile,
 394                                 identifier, "Tethering.Identifier", NULL);
 395
 396         technology->tethering_passphrase = g_key_file_get_string(keyfile,
 397                                 identifier, "Tethering.Passphrase", NULL);
 398 done:
 399         g_free(identifier);
 400
 401         g_key_file_free(keyfile);
 402
 403         return;
 404 }
 405
 406 connman_bool_t __connman_technology_get_offlinemode(void)
 407 {
 408         return global_offlinemode;
 409 }
 410
 411 static void connman_technology_save_offlinemode()
 412 {
 413         GKeyFile *keyfile;
 414
 415         keyfile = __connman_storage_load_global();
 416         if (keyfile == NULL)
 417                 keyfile = g_key_file_new();
 418
 419         g_key_file_set_boolean(keyfile, "global",
 420                                         "OfflineMode", global_offlinemode);
 421
 422         __connman_storage_save_global(keyfile);
 423
 424         g_key_file_free(keyfile);
 425
 426         return;
 427 }
 428
 429 static connman_bool_t connman_technology_load_offlinemode()
 430 {
 431         GKeyFile *keyfile;
 432         GError *error = NULL;
 433         connman_bool_t offlinemode;
 434
 435         /* If there is a error, we enable offlinemode */
 436         keyfile = __connman_storage_load_global();
 437         if (keyfile == NULL)
 438                 return FALSE;
 439
 440         offlinemode = g_key_file_get_boolean(keyfile, "global",
 441                                                 "OfflineMode", &error);
 442         if (error != NULL) {
 443                 offlinemode = FALSE;
 444                 g_clear_error(&error);
 445         }
 446
 447         g_key_file_free(keyfile);
 448
 449         return offlinemode;
 450 }
 451
 452 static void append_properties(DBusMessageIter *iter,
 453                 struct connman_technology *technology)
 454 {
 455         DBusMessageIter dict;
 456         const char *str;
 457
 458         connman_dbus_dict_open(iter, &dict);
 459
 460         str = get_name(technology->type);
 461         if (str != NULL)
 462                 connman_dbus_dict_append_basic(&dict, "Name",
 463                                                 DBUS_TYPE_STRING, &str);
 464
 465         str = __connman_service_type2string(technology->type);
 466         if (str != NULL)
 467                 connman_dbus_dict_append_basic(&dict, "Type",
 468                                                 DBUS_TYPE_STRING, &str);
 469
 470         __sync_synchronize();
 471         connman_dbus_dict_append_basic(&dict, "Powered",
 472                                         DBUS_TYPE_BOOLEAN,
 473                                         &technology->enabled);
 474
 475         connman_dbus_dict_append_basic(&dict, "Connected",
 476                                         DBUS_TYPE_BOOLEAN,
 477                                         &technology->connected);
 478
 479         connman_dbus_dict_append_basic(&dict, "Tethering",
 480                                         DBUS_TYPE_BOOLEAN,
 481                                         &technology->tethering);
 482
 483         if (technology->tethering_ident != NULL)
 484                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 485                                         DBUS_TYPE_STRING,
 486                                         &technology->tethering_ident);
 487
 488         if (technology->tethering_passphrase != NULL)
 489                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 490                                         DBUS_TYPE_STRING,
 491                                         &technology->tethering_passphrase);
 492
 493         connman_dbus_dict_close(iter, &dict);
 494 }
 495
 496 static void technology_added_signal(struct connman_technology *technology)
 497 {
 498         DBusMessage *signal;
 499         DBusMessageIter iter;
 500
 501         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 502                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 503         if (signal == NULL)
 504                 return;
 505
 506         dbus_message_iter_init_append(signal, &iter);
 507         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 508                                                         &technology->path);
 509         append_properties(&iter, technology);
 510
 511         dbus_connection_send(connection, signal, NULL);
 512         dbus_message_unref(signal);
 513 }
 514
 515 static void technology_removed_signal(struct connman_technology *technology)
 516 {
 517         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 518                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 519                         DBUS_TYPE_OBJECT_PATH, &technology->path,
 520                         DBUS_TYPE_INVALID);
 521 }
 522
 523 static DBusMessage *get_properties(DBusConnection *conn,
 524                                         DBusMessage *message, void *user_data)
 525 {
 526         struct connman_technology *technology = user_data;
 527         DBusMessage *reply;
 528         DBusMessageIter iter;
 529
 530         reply = dbus_message_new_method_return(message);
 531         if (reply == NULL)
 532                 return NULL;
 533
 534         dbus_message_iter_init_append(reply, &iter);
 535         append_properties(&iter, technology);
 536
 537         return reply;
 538 }
 539
 540 void __connman_technology_list_struct(DBusMessageIter *array)
 541 {
 542         GSList *list;
 543         DBusMessageIter entry;
 544
 545         for (list = technology_list; list; list = list->next) {
 546                 struct connman_technology *technology = list->data;
 547
 548                 if (technology->path == NULL ||
 549                                 (technology->rfkill_driven == TRUE &&
 550                                  technology->hardblocked == TRUE))
 551                         continue;
 552
 553                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 554                                 NULL, &entry);
 555                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 556                                 &technology->path);
 557                 append_properties(&entry, technology);
 558                 dbus_message_iter_close_container(array, &entry);
 559         }
 560 }
 561
 562 static gboolean technology_pending_reply(gpointer user_data)
 563 {
 564         struct connman_technology *technology = user_data;
 565         DBusMessage *reply;
 566
 567         /* Power request timedout, send ETIMEDOUT. */
 568         if (technology->pending_reply != NULL) {
 569                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 570                 if (reply != NULL)
 571                         g_dbus_send_message(connection, reply);
 572
 573                 dbus_message_unref(technology->pending_reply);
 574                 technology->pending_reply = NULL;
 575                 technology->pending_timeout = 0;
 576         }
 577
 578         return FALSE;
 579 }
 580
 581 static int technology_affect_devices(struct connman_technology *technology,
 582                                                 connman_bool_t enable_device)
 583 {
 584         GSList *list;
 585         int err = 0;
 586
 587         for (list = technology->device_list; list; list = list->next) {
 588                 struct connman_device *device = list->data;
 589
 590                 if (enable_device == TRUE)
 591                         err = __connman_device_enable(device);
 592                 else
 593                         err = __connman_device_disable(device);
 594         }
 595
 596         return err;
 597 }
 598
 599 static int technology_enable(struct connman_technology *technology,
 600                                                 connman_bool_t hardblock)
 601 {
 602         DBG("technology %p enable", technology);
 603
 604         __sync_synchronize();
 605         if (technology->enabled == TRUE)
 606                 return -EALREADY;
 607
 608         if (technology->pending_reply != NULL)
 609                 return -EBUSY;
 610
 611         if (hardblock == TRUE && technology->enable_persistent == FALSE)
 612                 return 0;
 613
 614         __connman_rfkill_block(technology->type, FALSE);
 615
 616         return technology_affect_devices(technology, TRUE);
 617 }
 618
 619 static int technology_disable(struct connman_technology *technology,
 620                                                 connman_bool_t hardblock)
 621 {
 622         DBG("technology %p disable", technology);
 623
 624         __sync_synchronize();
 625         if (technology->enabled == FALSE)
 626                 return -EALREADY;
 627
 628         if (technology->pending_reply != NULL)
 629                 return -EBUSY;
 630
 631         if (technology->tethering == TRUE)
 632                 set_tethering(technology, FALSE);
 633
 634         if (hardblock == FALSE)
 635                 __connman_rfkill_block(technology->type, TRUE);
 636
 637         return technology_affect_devices(technology, FALSE);
 638 }
 639
 640 static DBusMessage *set_powered(struct connman_technology *technology,
 641                                 DBusMessage *msg, connman_bool_t powered)
 642 {
 643         DBusMessage *reply = NULL;
 644         int err = 0;
 645
 646         if (technology->rfkill_driven && technology->hardblocked == TRUE) {
 647                 err = -EACCES;
 648                 goto make_reply;
 649         }
 650
 651         if (powered == TRUE)
 652                 err = technology_enable(technology, FALSE);
 653         else
 654                 err = technology_disable(technology, FALSE);
 655
 656         if (err != -EBUSY) {
 657                 technology->enable_persistent = powered;
 658                 technology_save(technology);
 659         }
 660
 661 make_reply:
 662         if (err == -EINPROGRESS) {
 663                 technology->pending_reply = dbus_message_ref(msg);
 664                 technology->pending_timeout = g_timeout_add_seconds(10,
 665                                         technology_pending_reply, technology);
 666         } else if (err == -EALREADY) {
 667                 if (powered == TRUE)
 668                         reply = __connman_error_already_enabled(msg);
 669                 else
 670                         reply = __connman_error_already_disabled(msg);
 671         } else if (err < 0)
 672                 reply = __connman_error_failed(msg, -err);
 673         else
 674                 reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 675
 676         return reply;
 677 }
 678
 679 static DBusMessage *set_property(DBusConnection *conn,
 680                                         DBusMessage *msg, void *data)
 681 {
 682         struct connman_technology *technology = data;
 683         DBusMessageIter iter, value;
 684         const char *name;
 685         int type;
 686
 687         DBG("conn %p", conn);
 688
 689         if (dbus_message_iter_init(msg, &iter) == FALSE)
 690                 return __connman_error_invalid_arguments(msg);
 691
 692         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
 693                 return __connman_error_invalid_arguments(msg);
 694
 695         dbus_message_iter_get_basic(&iter, &name);
 696         dbus_message_iter_next(&iter);
 697
 698         if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
 699                 return __connman_error_invalid_arguments(msg);
 700
 701         dbus_message_iter_recurse(&iter, &value);
 702
 703         type = dbus_message_iter_get_arg_type(&value);
 704
 705         DBG("property %s", name);
 706
 707         if (g_str_equal(name, "Tethering") == TRUE) {
 708                 int err;
 709                 connman_bool_t tethering;
 710
 711                 if (type != DBUS_TYPE_BOOLEAN)
 712                         return __connman_error_invalid_arguments(msg);
 713
 714                 dbus_message_iter_get_basic(&value, &tethering);
 715
 716                 if (technology->tethering == tethering) {
 717                         if (tethering == FALSE)
 718                                 return __connman_error_already_disabled(msg);
 719                         else
 720                                 return __connman_error_already_enabled(msg);
 721                 }
 722
 723                 err = set_tethering(technology, tethering);
 724                 if (err < 0)
 725                         return __connman_error_failed(msg, -err);
 726
 727         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 728                 const char *str;
 729
 730                 dbus_message_iter_get_basic(&value, &str);
 731
 732                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 733                         return __connman_error_not_supported(msg);
 734
 735                 if (strlen(str) < 1 || strlen(str) > 32)
 736                         return __connman_error_invalid_arguments(msg);
 737
 738                 if (g_strcmp0(technology->tethering_ident, str) != 0) {
 739                         g_free(technology->tethering_ident);
 740                         technology->tethering_ident = g_strdup(str);
 741                         technology_save(technology);
 742
 743                         connman_dbus_property_changed_basic(technology->path,
 744                                                 CONNMAN_TECHNOLOGY_INTERFACE,
 745                                                 "TetheringIdentifier",
 746                                                 DBUS_TYPE_STRING,
 747                                                 &technology->tethering_ident);
 748                 }
 749         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 750                 const char *str;
 751
 752                 dbus_message_iter_get_basic(&value, &str);
 753
 754                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 755                         return __connman_error_not_supported(msg);
 756
 757                 if (strlen(str) < 8 || strlen(str) > 63)
 758                         return __connman_error_passphrase_required(msg);
 759
 760                 if (g_strcmp0(technology->tethering_passphrase, str) != 0) {
 761                         g_free(technology->tethering_passphrase);
 762                         technology->tethering_passphrase = g_strdup(str);
 763                         technology_save(technology);
 764
 765                         connman_dbus_property_changed_basic(technology->path,
 766                                         CONNMAN_TECHNOLOGY_INTERFACE,
 767                                         "TetheringPassphrase",
 768                                         DBUS_TYPE_STRING,
 769                                         &technology->tethering_passphrase);
 770                 }
 771         } else if (g_str_equal(name, "Powered") == TRUE) {
 772                 connman_bool_t enable;
 773
 774                 if (type != DBUS_TYPE_BOOLEAN)
 775                         return __connman_error_invalid_arguments(msg);
 776
 777                 dbus_message_iter_get_basic(&value, &enable);
 778
 779                 return set_powered(technology, msg, enable);
 780         } else
 781                 return __connman_error_invalid_property(msg);
 782
 783         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 784 }
 785
 786 static struct connman_technology *technology_find(enum connman_service_type type)
 787 {
 788         GSList *list;
 789
 790         DBG("type %d", type);
 791
 792         for (list = technology_list; list; list = list->next) {
 793                 struct connman_technology *technology = list->data;
 794
 795                 if (technology->type == type)
 796                         return technology;
 797         }
 798
 799         return NULL;
 800 }
 801
 802 static void reply_scan_pending(struct connman_technology *technology, int err)
 803 {
 804         DBusMessage *reply;
 805
 806         DBG("technology %p err %d", technology, err);
 807
 808         while (technology->scan_pending != NULL) {
 809                 DBusMessage *msg = technology->scan_pending->data;
 810
 811                 DBG("reply to %s", dbus_message_get_sender(msg));
 812
 813                 if (err == 0)
 814                         reply = g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 815                 else
 816                         reply = __connman_error_failed(msg, -err);
 817                 g_dbus_send_message(connection, reply);
 818                 dbus_message_unref(msg);
 819
 820                 technology->scan_pending =
 821                         g_slist_delete_link(technology->scan_pending,
 822                                         technology->scan_pending);
 823         }
 824 }
 825
 826 void __connman_technology_scan_started(struct connman_device *device)
 827 {
 828         DBG("device %p", device);
 829 }
 830
 831 void __connman_technology_scan_stopped(struct connman_device *device)
 832 {
 833         int count = 0;
 834         struct connman_technology *technology;
 835         enum connman_service_type type;
 836         GSList *list;
 837
 838         type = __connman_device_get_service_type(device);
 839         technology = technology_find(type);
 840
 841         DBG("technology %p device %p", technology, device);
 842
 843         if (technology == NULL)
 844                 return;
 845
 846         for (list = technology->device_list; list != NULL; list = list->next) {
 847                 struct connman_device *other_device = list->data;
 848
 849                 if (device == other_device)
 850                         continue;
 851
 852                 if (__connman_device_get_service_type(other_device) != type)
 853                         continue;
 854
 855                 if (connman_device_get_scanning(other_device) == TRUE)
 856                         count += 1;
 857         }
 858
 859         if (count == 0)
 860                 reply_scan_pending(technology, 0);
 861 }
 862
 863 void __connman_technology_notify_regdom_by_device(struct connman_device *device,
 864                                                 int result, const char *alpha2)
 865 {
 866         struct connman_technology *technology;
 867         enum connman_service_type type;
 868
 869         type = __connman_device_get_service_type(device);
 870         technology = technology_find(type);
 871
 872         if (technology == NULL)
 873                 return;
 874
 875         if (result < 0) {
 876                 if (technology->driver != NULL &&
 877                                 technology->driver->set_regdom != NULL) {
 878                         technology->driver->set_regdom(technology, alpha2);
 879                         return;
 880                 }
 881
 882                 alpha2 = NULL;
 883         }
 884
 885         connman_technology_regdom_notify(technology, alpha2);
 886 }
 887
 888 static DBusMessage *scan(DBusConnection *conn, DBusMessage *msg, void *data)
 889 {
 890         struct connman_technology *technology = data;
 891         int err;
 892
 893         DBG ("technology %p request from %s", technology,
 894                         dbus_message_get_sender(msg));
 895
 896         dbus_message_ref(msg);
 897         technology->scan_pending =
 898                 g_slist_prepend(technology->scan_pending, msg);
 899
 900         err = __connman_device_request_scan(technology->type);
 901         if (err < 0)
 902                 reply_scan_pending(technology, err);
 903
 904         return NULL;
 905 }
 906
 907 static const GDBusMethodTable technology_methods[] = {
 908         { GDBUS_DEPRECATED_METHOD("GetProperties",
 909                         NULL, GDBUS_ARGS({ "properties", "a{sv}" }),
 910                         get_properties) },
 911         { GDBUS_ASYNC_METHOD("SetProperty",
 912                         GDBUS_ARGS({ "name", "s" }, { "value", "v" }),
 913                         NULL, set_property) },
 914         { GDBUS_ASYNC_METHOD("Scan", NULL, NULL, scan) },
 915         { },
 916 };
 917
 918 static const GDBusSignalTable technology_signals[] = {
 919         { GDBUS_SIGNAL("PropertyChanged",
 920                         GDBUS_ARGS({ "name", "s" }, { "value", "v" })) },
 921         { },
 922 };
 923
 924 static gboolean technology_dbus_register(struct connman_technology *technology)
 925 {
 926         if (technology->dbus_registered == TRUE ||
 927                                 (technology->rfkill_driven &&
 928                                  technology->hardblocked == TRUE))
 929                 return TRUE;
 930
 931         if (g_dbus_register_interface(connection, technology->path,
 932                                 CONNMAN_TECHNOLOGY_INTERFACE,
 933                                 technology_methods, technology_signals,
 934                                 NULL, technology, NULL) == FALSE) {
 935                 connman_error("Failed to register %s", technology->path);
 936                 return FALSE;
 937         }
 938
 939         technology_added_signal(technology);
 940         technology->dbus_registered = TRUE;
 941
 942         return TRUE;
 943 }
 944
 945 static struct connman_technology *technology_get(enum connman_service_type type)
 946 {
 947         struct connman_technology *technology;
 948         struct connman_technology_driver *driver = NULL;
 949         const char *str;
 950         GSList *list;
 951         int err;
 952
 953         DBG("type %d", type);
 954
 955         str = __connman_service_type2string(type);
 956         if (str == NULL)
 957                 return NULL;
 958
 959         technology = technology_find(type);
 960         if (technology != NULL) {
 961                 __sync_fetch_and_add(&technology->refcount, 1);
 962                 return technology;
 963         }
 964
 965         /* First check if we have a driver for this technology type */
 966         for (list = driver_list; list; list = list->next) {
 967                 driver = list->data;
 968
 969                 if (driver->type == type)
 970                         break;
 971                 else
 972                         driver = NULL;
 973         }
 974
 975         if (driver == NULL) {
 976                 DBG("No matching driver found for %s.",
 977                                 __connman_service_type2string(type));
 978                 return NULL;
 979         }
 980
 981         technology = g_try_new0(struct connman_technology, 1);
 982         if (technology == NULL)
 983                 return NULL;
 984
 985         technology->refcount = 1;
 986
 987         technology->rfkill_driven = FALSE;
 988         technology->softblocked = FALSE;
 989
 990         if (type == CONNMAN_SERVICE_TYPE_ETHERNET)
 991                 technology->hardblocked = FALSE;
 992         else
 993                 technology->hardblocked = TRUE;
 994
 995         technology->type = type;
 996         technology->path = g_strdup_printf("%s/technology/%s",
 997                                                         CONNMAN_PATH, str);
 998
 999         technology->device_list = NULL;
1000
1001         technology->pending_reply = NULL;
1002
1003         technology_load(technology);
1004
1005         if (technology_dbus_register(technology) == FALSE) {
1006                 g_free(technology);
1007                 return NULL;
1008         }
1009
1010         technology_list = g_slist_prepend(technology_list, technology);
1011
1012         technology->driver = driver;
1013         err = driver->probe(technology);
1014         if (err != 0)
1015                 DBG("Driver probe failed for technology %p", technology);
1016
1017         DBG("technology %p", technology);
1018
1019         return technology;
1020 }
1021
1022 static void technology_dbus_unregister(struct connman_technology *technology)
1023 {
1024         if (technology->dbus_registered == FALSE)
1025                 return;
1026
1027         technology_removed_signal(technology);
1028         g_dbus_unregister_interface(connection, technology->path,
1029                 CONNMAN_TECHNOLOGY_INTERFACE);
1030
1031         technology->dbus_registered = FALSE;
1032 }
1033
1034 static void technology_put(struct connman_technology *technology)
1035 {
1036         DBG("technology %p", technology);
1037
1038         if (__sync_sub_and_fetch(&technology->refcount, 1) > 0)
1039                 return;
1040
1041         reply_scan_pending(technology, -EINTR);
1042
1043         if (technology->driver) {
1044                 technology->driver->remove(technology);
1045                 technology->driver = NULL;
1046         }
1047
1048         technology_list = g_slist_remove(technology_list, technology);
1049
1050         technology_dbus_unregister(technology);
1051
1052         g_slist_free(technology->device_list);
1053
1054         g_free(technology->path);
1055         g_free(technology->regdom);
1056         g_free(technology->tethering_ident);
1057         g_free(technology->tethering_passphrase);
1058         g_free(technology);
1059 }
1060
1061 void __connman_technology_add_interface(enum connman_service_type type,
1062                                 int index, const char *name, const char *ident)
1063 {
1064         struct connman_technology *technology;
1065
1066         switch (type) {
1067         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1068         case CONNMAN_SERVICE_TYPE_SYSTEM:
1069                 return;
1070         case CONNMAN_SERVICE_TYPE_ETHERNET:
1071         case CONNMAN_SERVICE_TYPE_WIFI:
1072         case CONNMAN_SERVICE_TYPE_WIMAX:
1073         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1074         case CONNMAN_SERVICE_TYPE_CELLULAR:
1075         case CONNMAN_SERVICE_TYPE_GPS:
1076         case CONNMAN_SERVICE_TYPE_VPN:
1077         case CONNMAN_SERVICE_TYPE_GADGET:
1078                 break;
1079         }
1080
1081         connman_info("Adding interface %s [ %s ]", name,
1082                                 __connman_service_type2string(type));
1083
1084         technology = technology_find(type);
1085
1086         if (technology == NULL || technology->driver == NULL
1087                         || technology->driver->add_interface == NULL)
1088                 return;
1089
1090         technology->driver->add_interface(technology,
1091                                         index, name, ident);
1092 }
1093
1094 void __connman_technology_remove_interface(enum connman_service_type type,
1095                                 int index, const char *name, const char *ident)
1096 {
1097         struct connman_technology *technology;
1098
1099         switch (type) {
1100         case CONNMAN_SERVICE_TYPE_UNKNOWN:
1101         case CONNMAN_SERVICE_TYPE_SYSTEM:
1102                 return;
1103         case CONNMAN_SERVICE_TYPE_ETHERNET:
1104         case CONNMAN_SERVICE_TYPE_WIFI:
1105         case CONNMAN_SERVICE_TYPE_WIMAX:
1106         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
1107         case CONNMAN_SERVICE_TYPE_CELLULAR:
1108         case CONNMAN_SERVICE_TYPE_GPS:
1109         case CONNMAN_SERVICE_TYPE_VPN:
1110         case CONNMAN_SERVICE_TYPE_GADGET:
1111                 break;
1112         }
1113
1114         connman_info("Remove interface %s [ %s ]", name,
1115                                 __connman_service_type2string(type));
1116
1117         technology = technology_find(type);
1118
1119         if (technology == NULL || technology->driver == NULL)
1120                 return;
1121
1122         if (technology->driver->remove_interface)
1123                 technology->driver->remove_interface(technology, index);
1124 }
1125
1126 int __connman_technology_add_device(struct connman_device *device)
1127 {
1128         struct connman_technology *technology;
1129         enum connman_service_type type;
1130
1131         DBG("device %p", device);
1132
1133         type = __connman_device_get_service_type(device);
1134
1135         technology = technology_get(type);
1136         if (technology == NULL) {
1137                 /*
1138                  * Since no driver can be found for this device at the moment we
1139                  * add it to the techless device list.
1140                 */
1141                 techless_device_list = g_slist_prepend(techless_device_list,
1142                                                                 device);
1143
1144                 return -ENXIO;
1145         }
1146
1147         if (technology->enable_persistent &&
1148                                         global_offlinemode == FALSE &&
1149                                         technology->hardblocked == FALSE) {
1150                 int err = __connman_device_enable(device);
1151                 /*
1152                  * connman_technology_add_device() calls __connman_device_enable()
1153                  * but since the device is already enabled, the calls does not
1154                  * propagate through to connman_technology_enabled via
1155                  * connman_device_set_powered.
1156                  */
1157                 if (err == -EALREADY)
1158                         __connman_technology_enabled(type);
1159         }
1160         /* if technology persistent state is offline or hardblocked */
1161         if (technology->enable_persistent == FALSE ||
1162                                         technology->hardblocked == TRUE)
1163                 __connman_device_disable(device);
1164
1165         technology->device_list = g_slist_prepend(technology->device_list,
1166                                                                 device);
1167
1168         return 0;
1169 }
1170
1171 int __connman_technology_remove_device(struct connman_device *device)
1172 {
1173         struct connman_technology *technology;
1174         enum connman_service_type type;
1175
1176         DBG("device %p", device);
1177
1178         type = __connman_device_get_service_type(device);
1179
1180         technology = technology_find(type);
1181         if (technology == NULL) {
1182                 techless_device_list = g_slist_remove(techless_device_list,
1183                                                                 device);
1184                 return -ENXIO;
1185         }
1186
1187         technology->device_list = g_slist_remove(technology->device_list,
1188                                                                 device);
1189         technology_put(technology);
1190
1191         return 0;
1192 }
1193
1194 static void powered_changed(struct connman_technology *technology)
1195 {
1196         if (technology->pending_reply != NULL) {
1197                 g_dbus_send_reply(connection,
1198                                 technology->pending_reply, DBUS_TYPE_INVALID);
1199                 dbus_message_unref(technology->pending_reply);
1200                 technology->pending_reply = NULL;
1201
1202                 g_source_remove(technology->pending_timeout);
1203                 technology->pending_timeout = 0;
1204         }
1205
1206         __sync_synchronize();
1207         connman_dbus_property_changed_basic(technology->path,
1208                         CONNMAN_TECHNOLOGY_INTERFACE, "Powered",
1209                         DBUS_TYPE_BOOLEAN, &technology->enabled);
1210 }
1211
1212 static int technology_enabled(struct connman_technology *technology)
1213 {
1214         __sync_synchronize();
1215         if (technology->enabled == TRUE)
1216                 return -EALREADY;
1217
1218         technology->enabled = TRUE;
1219
1220         powered_changed(technology);
1221
1222         return 0;
1223 }
1224
1225 int __connman_technology_enabled(enum connman_service_type type)
1226 {
1227         struct connman_technology *technology;
1228
1229         technology = technology_find(type);
1230         if (technology == NULL)
1231                 return -ENXIO;
1232
1233         return technology_enabled(technology);
1234 }
1235
1236 static int technology_disabled(struct connman_technology *technology)
1237 {
1238         __sync_synchronize();
1239         if (technology->enabled == FALSE)
1240                 return -EALREADY;
1241
1242         technology->enabled = FALSE;
1243
1244         powered_changed(technology);
1245
1246         return 0;
1247 }
1248
1249 int __connman_technology_disabled(enum connman_service_type type)
1250 {
1251         struct connman_technology *technology;
1252
1253         technology = technology_find(type);
1254         if (technology == NULL)
1255                 return -ENXIO;
1256
1257         return technology_disabled(technology);
1258 }
1259
1260 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
1261 {
1262         GSList *list;
1263         int err = -EINVAL;
1264
1265         if (global_offlinemode == offlinemode)
1266                 return 0;
1267
1268         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1269
1270         /*
1271          * This is a bit tricky. When you set offlinemode, there is no
1272          * way to differentiate between attempting offline mode and
1273          * resuming offlinemode from last saved profile. We need that
1274          * information in rfkill_update, otherwise it falls back on the
1275          * technology's persistent state. Hence we set the offline mode here
1276          * but save it & call the notifier only if its successful.
1277          */
1278
1279         global_offlinemode = offlinemode;
1280
1281         /* Traverse technology list, enable/disable each technology. */
1282         for (list = technology_list; list; list = list->next) {
1283                 struct connman_technology *technology = list->data;
1284
1285                 if (offlinemode)
1286                         err = technology_disable(technology, FALSE);
1287
1288                 if (!offlinemode && technology->enable_persistent)
1289                         err = technology_enable(technology, FALSE);
1290         }
1291
1292         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1293                 connman_technology_save_offlinemode();
1294                 __connman_notifier_offlinemode(offlinemode);
1295         } else
1296                 global_offlinemode = connman_technology_load_offlinemode();
1297
1298         return err;
1299 }
1300
1301 void __connman_technology_set_connected(enum connman_service_type type,
1302                 connman_bool_t connected)
1303 {
1304         struct connman_technology *technology;
1305
1306         technology = technology_find(type);
1307         if (technology == NULL)
1308                 return;
1309
1310         DBG("technology %p connected %d", technology, connected);
1311
1312         technology->connected = connected;
1313
1314         connman_dbus_property_changed_basic(technology->path,
1315                         CONNMAN_TECHNOLOGY_INTERFACE, "Connected",
1316                         DBUS_TYPE_BOOLEAN, &connected);
1317 }
1318
1319 static connman_bool_t technology_apply_rfkill_change(struct connman_technology *technology,
1320                                                 connman_bool_t softblock,
1321                                                 connman_bool_t hardblock)
1322 {
1323         gboolean apply = TRUE;
1324         GList *start, *list;
1325
1326         if (technology->hardblocked == hardblock)
1327                 goto softblock_change;
1328
1329         start = g_hash_table_get_values(rfkill_list);
1330         for (list = start; list != NULL; list = list->next) {
1331                 struct connman_rfkill *rfkill = list->data;
1332
1333                 if (rfkill->type != technology->type)
1334                         continue;
1335
1336                 if (rfkill->hardblock != hardblock)
1337                         apply = FALSE;
1338         }
1339
1340         g_list_free(start);
1341
1342         if (apply == FALSE)
1343                 goto softblock_change;
1344
1345         technology->hardblocked = hardblock;
1346
1347         if (hardblock == TRUE) {
1348                 DBG("%s is switched off.", get_name(technology->type));
1349                 technology_disable(technology, TRUE);
1350                 technology_dbus_unregister(technology);
1351         } else {
1352                 technology_enable(technology, TRUE);
1353                 technology_dbus_register(technology);
1354         }
1355
1356 softblock_change:
1357         technology->softblocked = softblock;
1358
1359         return technology->hardblocked;
1360 }
1361
1362 int __connman_technology_add_rfkill(unsigned int index,
1363                                         enum connman_service_type type,
1364                                                 connman_bool_t softblock,
1365                                                 connman_bool_t hardblock)
1366 {
1367         struct connman_technology *technology;
1368         struct connman_rfkill *rfkill;
1369
1370         DBG("index %u type %d soft %u hard %u", index, type,
1371                                                         softblock, hardblock);
1372
1373         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1374         if (rfkill != NULL)
1375                 goto done;
1376
1377         rfkill = g_try_new0(struct connman_rfkill, 1);
1378         if (rfkill == NULL)
1379                 return -ENOMEM;
1380
1381         rfkill->index = index;
1382         rfkill->type = type;
1383         rfkill->softblock = softblock;
1384         rfkill->hardblock = hardblock;
1385
1386         g_hash_table_insert(rfkill_list, GINT_TO_POINTER(index), rfkill);
1387
1388 done:
1389         technology = technology_get(type);
1390         /* If there is no driver for this type, ignore it. */
1391         if (technology == NULL)
1392                 return -ENXIO;
1393
1394         technology->rfkill_driven = TRUE;
1395
1396         /* If hardblocked, there is no need to handle softblocked state */
1397         if (technology_apply_rfkill_change(technology,
1398                                         softblock, hardblock) == TRUE)
1399                 return 0;
1400
1401         /*
1402          * Depending on softblocked state we unblock/block according to
1403          * offlinemode and persistente state.
1404          */
1405         if (technology->softblocked == TRUE &&
1406                                 global_offlinemode == FALSE &&
1407                                 technology->enable_persistent == TRUE)
1408                 return __connman_rfkill_block(type, FALSE);
1409         else if (technology->softblocked == FALSE &&
1410                                 global_offlinemode == TRUE &&
1411                                 technology->enable_persistent == FALSE)
1412                 return __connman_rfkill_block(type, TRUE);
1413
1414         return 0;
1415 }
1416
1417 int __connman_technology_update_rfkill(unsigned int index,
1418                                         enum connman_service_type type,
1419                                                 connman_bool_t softblock,
1420                                                 connman_bool_t hardblock)
1421 {
1422         struct connman_technology *technology;
1423         struct connman_rfkill *rfkill;
1424
1425         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1426
1427         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1428         if (rfkill == NULL)
1429                 return -ENXIO;
1430
1431         if (rfkill->softblock == softblock &&
1432                                 rfkill->hardblock == hardblock)
1433                 return 0;
1434
1435         rfkill->softblock = softblock;
1436         rfkill->hardblock = hardblock;
1437
1438         technology = technology_find(type);
1439         /* If there is no driver for this type, ignore it. */
1440         if (technology == NULL)
1441                 return -ENXIO;
1442
1443         /* If hardblocked, there is no need to handle softblocked state */
1444         if (technology_apply_rfkill_change(technology,
1445                                         softblock, hardblock) == TRUE)
1446                 return 0;
1447
1448         if (global_offlinemode == TRUE)
1449                 return 0;
1450
1451         /*
1452          * Depending on softblocked state we unblock/block according to
1453          * persistent state.
1454          */
1455         if (technology->softblocked == TRUE &&
1456                                 technology->enable_persistent == TRUE)
1457                 return __connman_rfkill_block(type, FALSE);
1458         else if (technology->softblocked == FALSE &&
1459                                 technology->enable_persistent == FALSE)
1460                 return __connman_rfkill_block(type, TRUE);
1461
1462         return 0;
1463 }
1464
1465 int __connman_technology_remove_rfkill(unsigned int index,
1466                                         enum connman_service_type type)
1467 {
1468         struct connman_technology *technology;
1469         struct connman_rfkill *rfkill;
1470
1471         DBG("index %u", index);
1472
1473         rfkill = g_hash_table_lookup(rfkill_list, GINT_TO_POINTER(index));
1474         if (rfkill == NULL)
1475                 return -ENXIO;
1476
1477         g_hash_table_remove(rfkill_list, GINT_TO_POINTER(index));
1478
1479         technology = technology_find(type);
1480         if (technology == NULL)
1481                 return -ENXIO;
1482
1483         technology_put(technology);
1484
1485         return 0;
1486 }
1487
1488 int __connman_technology_init(void)
1489 {
1490         DBG("");
1491
1492         connection = connman_dbus_get_connection();
1493
1494         rfkill_list = g_hash_table_new_full(g_direct_hash, g_direct_equal,
1495                                                         NULL, free_rfkill);
1496
1497         global_offlinemode = connman_technology_load_offlinemode();
1498
1499         /* This will create settings file if it is missing */
1500         connman_technology_save_offlinemode();
1501
1502         return 0;
1503 }
1504
1505 void __connman_technology_cleanup(void)
1506 {
1507         DBG("");
1508
1509         g_hash_table_destroy(rfkill_list);
1510
1511         dbus_connection_unref(connection);
1512 }