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