src/technology.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2010  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 static connman_bool_t global_offlinemode;
  38
  39 struct connman_rfkill {
  40         unsigned int index;
  41         enum connman_service_type type;
  42         connman_bool_t softblock;
  43         connman_bool_t hardblock;
  44 };
  45
  46 enum connman_technology_state {
  47         CONNMAN_TECHNOLOGY_STATE_UNKNOWN   = 0,
  48         CONNMAN_TECHNOLOGY_STATE_OFFLINE   = 1,
  49         CONNMAN_TECHNOLOGY_STATE_ENABLED   = 2,
  50         CONNMAN_TECHNOLOGY_STATE_CONNECTED = 3,
  51 };
  52
  53 struct connman_technology {
  54         int refcount;
  55         enum connman_service_type type;
  56         enum connman_technology_state state;
  57         char *path;
  58         GHashTable *rfkill_list;
  59         GSList *device_list;
  60         int enabled;
  61         char *regdom;
  62
  63         connman_bool_t tethering;
  64         char *tethering_ident;
  65         char *tethering_passphrase;
  66
  67         connman_bool_t enable_persistent; /* Save the tech state */
  68
  69         struct connman_technology_driver *driver;
  70         void *driver_data;
  71
  72         DBusMessage *pending_reply;
  73         guint pending_timeout;
  74 };
  75
  76 static GSList *driver_list = NULL;
  77
  78 static gint compare_priority(gconstpointer a, gconstpointer b)
  79 {
  80         const struct connman_technology_driver *driver1 = a;
  81         const struct connman_technology_driver *driver2 = b;
  82
  83         return driver2->priority - driver1->priority;
  84 }
  85
  86 /**
  87  * connman_technology_driver_register:
  88  * @driver: Technology driver definition
  89  *
  90  * Register a new technology driver
  91  *
  92  * Returns: %0 on success
  93  */
  94 int connman_technology_driver_register(struct connman_technology_driver *driver)
  95 {
  96         DBG("Registering %s driver", driver->name);
  97
  98         driver_list = g_slist_insert_sorted(driver_list, driver,
  99                                                         compare_priority);
 100
 101         return 0;
 102 }
 103
 104 /**
 105  * connman_technology_driver_unregister:
 106  * @driver: Technology driver definition
 107  *
 108  * Remove a previously registered technology driver
 109  */
 110 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 111 {
 112         GSList *list;
 113         struct connman_technology *technology;
 114
 115         DBG("Unregistering driver %p name %s", driver, driver->name);
 116
 117         for (list = technology_list; list; list = list->next) {
 118                 technology = list->data;
 119
 120                 if (technology->driver == NULL)
 121                         continue;
 122
 123                 if (technology->type == driver->type) {
 124                         technology->driver->remove(technology);
 125                         technology->driver = NULL;
 126                 }
 127         }
 128
 129         driver_list = g_slist_remove(driver_list, driver);
 130 }
 131
 132 static void tethering_changed(struct connman_technology *technology)
 133 {
 134         connman_bool_t tethering = technology->tethering;
 135
 136         connman_dbus_property_changed_basic(technology->path,
 137                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 138                                                 DBUS_TYPE_BOOLEAN, &tethering);
 139 }
 140
 141 void connman_technology_tethering_notify(struct connman_technology *technology,
 142                                                         connman_bool_t enabled)
 143 {
 144         GSList *list;
 145
 146         DBG("technology %p enabled %u", technology, enabled);
 147
 148         if (technology->tethering == enabled)
 149                 return;
 150
 151         technology->tethering = enabled;
 152
 153         tethering_changed(technology);
 154
 155         if (enabled == TRUE)
 156                 __connman_tethering_set_enabled();
 157         else {
 158                 for (list = technology_list; list; list = list->next) {
 159                         struct connman_technology *other_tech = list->data;
 160                         if (other_tech->tethering == TRUE)
 161                                 break;
 162                 }
 163                 if (list == NULL)
 164                         __connman_tethering_set_disabled();
 165         }
 166 }
 167
 168 static int set_tethering(struct connman_technology *technology,
 169                                 connman_bool_t enabled)
 170 {
 171         const char *ident, *passphrase, *bridge;
 172
 173         ident = technology->tethering_ident;
 174         passphrase = technology->tethering_passphrase;
 175
 176         if (technology->driver == NULL ||
 177                         technology->driver->set_tethering == NULL)
 178                 return -EOPNOTSUPP;
 179
 180         bridge = __connman_tethering_get_bridge();
 181         if (bridge == NULL)
 182                 return -EOPNOTSUPP;
 183
 184         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI &&
 185             (ident == NULL || passphrase == NULL))
 186                 return -EINVAL;
 187
 188         return technology->driver->set_tethering(technology, ident, passphrase,
 189                                                         bridge, enabled);
 190 }
 191
 192 void connman_technology_regdom_notify(struct connman_technology *technology,
 193                                                         const char *alpha2)
 194 {
 195         DBG("");
 196
 197         if (alpha2 == NULL)
 198                 connman_error("Failed to set regulatory domain");
 199         else
 200                 DBG("Regulatory domain set to %s", alpha2);
 201
 202         g_free(technology->regdom);
 203         technology->regdom = g_strdup(alpha2);
 204 }
 205
 206 int connman_technology_set_regdom(const char *alpha2)
 207 {
 208         GSList *list;
 209
 210         for (list = technology_list; list; list = list->next) {
 211                 struct connman_technology *technology = list->data;
 212
 213                 if (technology->driver == NULL)
 214                         continue;
 215
 216                 if (technology->driver->set_regdom)
 217                         technology->driver->set_regdom(technology, alpha2);
 218         }
 219
 220         return 0;
 221 }
 222
 223 static void free_rfkill(gpointer data)
 224 {
 225         struct connman_rfkill *rfkill = data;
 226
 227         g_free(rfkill);
 228 }
 229
 230 static const char *state2string(enum connman_technology_state state)
 231 {
 232         switch (state) {
 233         case CONNMAN_TECHNOLOGY_STATE_UNKNOWN:
 234                 break;
 235         case CONNMAN_TECHNOLOGY_STATE_OFFLINE:
 236                 return "offline";
 237         case CONNMAN_TECHNOLOGY_STATE_ENABLED:
 238                 return "enabled";
 239         case CONNMAN_TECHNOLOGY_STATE_CONNECTED:
 240                 return "connected";
 241         }
 242
 243         return NULL;
 244 }
 245
 246 static void state_changed(struct connman_technology *technology)
 247 {
 248         const char *str;
 249
 250         str = state2string(technology->state);
 251         if (str == NULL)
 252                 return;
 253
 254         connman_dbus_property_changed_basic(technology->path,
 255                                 CONNMAN_TECHNOLOGY_INTERFACE, "State",
 256                                                 DBUS_TYPE_STRING, &str);
 257 }
 258
 259 static const char *get_name(enum connman_service_type type)
 260 {
 261         switch (type) {
 262         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 263         case CONNMAN_SERVICE_TYPE_SYSTEM:
 264         case CONNMAN_SERVICE_TYPE_GPS:
 265         case CONNMAN_SERVICE_TYPE_VPN:
 266         case CONNMAN_SERVICE_TYPE_GADGET:
 267                 break;
 268         case CONNMAN_SERVICE_TYPE_ETHERNET:
 269                 return "Wired";
 270         case CONNMAN_SERVICE_TYPE_WIFI:
 271                 return "WiFi";
 272         case CONNMAN_SERVICE_TYPE_WIMAX:
 273                 return "WiMAX";
 274         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 275                 return "Bluetooth";
 276         case CONNMAN_SERVICE_TYPE_CELLULAR:
 277                 return "Cellular";
 278         }
 279
 280         return NULL;
 281 }
 282
 283 static void load_state(struct connman_technology *technology)
 284 {
 285         GKeyFile *keyfile;
 286         gchar *identifier;
 287         GError *error = NULL;
 288         connman_bool_t enable;
 289
 290         DBG("technology %p", technology);
 291
 292         keyfile = __connman_storage_load_global();
 293         /* Fallback on disabling technology if file not found. */
 294         if (keyfile == NULL) {
 295                 technology->enable_persistent = FALSE;
 296                 return;
 297         }
 298
 299         identifier = g_strdup_printf("%s", get_name(technology->type));
 300         if (identifier == NULL)
 301                 goto done;
 302
 303         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 304         if (error == NULL)
 305                 technology->enable_persistent = enable;
 306         else {
 307                 technology->enable_persistent = FALSE;
 308                 g_clear_error(&error);
 309         }
 310 done:
 311         g_free(identifier);
 312
 313         g_key_file_free(keyfile);
 314
 315         return;
 316 }
 317
 318 static void save_state(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 done:
 337         g_free(identifier);
 338
 339         __connman_storage_save_global(keyfile);
 340
 341         g_key_file_free(keyfile);
 342
 343         return;
 344 }
 345
 346 connman_bool_t __connman_technology_get_offlinemode(void)
 347 {
 348         return global_offlinemode;
 349 }
 350
 351 static void connman_technology_save_offlinemode()
 352 {
 353         GKeyFile *keyfile;
 354
 355         keyfile = __connman_storage_load_global();
 356         if (keyfile == NULL)
 357                 keyfile = g_key_file_new();
 358
 359         g_key_file_set_boolean(keyfile, "global",
 360                                         "OfflineMode", global_offlinemode);
 361
 362         __connman_storage_save_global(keyfile);
 363
 364         g_key_file_free(keyfile);
 365
 366         return;
 367 }
 368
 369 static connman_bool_t connman_technology_load_offlinemode()
 370 {
 371         GKeyFile *keyfile;
 372         GError *error = NULL;
 373         connman_bool_t offlinemode;
 374
 375         /* If there is a error, we enable offlinemode */
 376         keyfile = __connman_storage_load_global();
 377         if (keyfile == NULL)
 378                 return TRUE;
 379
 380         offlinemode = g_key_file_get_boolean(keyfile, "global",
 381                                                 "OfflineMode", &error);
 382         if (error != NULL) {
 383                 offlinemode = TRUE;
 384                 g_clear_error(&error);
 385         }
 386
 387         g_key_file_free(keyfile);
 388
 389         return offlinemode;
 390 }
 391
 392 static void append_properties(DBusMessageIter *iter,
 393                 struct connman_technology *technology)
 394 {
 395         DBusMessageIter dict;
 396         const char *str;
 397
 398         connman_dbus_dict_open(iter, &dict);
 399
 400         str = state2string(technology->state);
 401         if (str != NULL)
 402                 connman_dbus_dict_append_basic(&dict, "State",
 403                                                 DBUS_TYPE_STRING, &str);
 404
 405         str = get_name(technology->type);
 406         if (str != NULL)
 407                 connman_dbus_dict_append_basic(&dict, "Name",
 408                                                 DBUS_TYPE_STRING, &str);
 409
 410         str = __connman_service_type2string(technology->type);
 411         if (str != NULL)
 412                 connman_dbus_dict_append_basic(&dict, "Type",
 413                                                 DBUS_TYPE_STRING, &str);
 414
 415         connman_dbus_dict_append_basic(&dict, "Tethering",
 416                                         DBUS_TYPE_BOOLEAN,
 417                                         &technology->tethering);
 418
 419         if (technology->tethering_ident != NULL)
 420                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 421                                                 DBUS_TYPE_STRING,
 422                                                 &technology->tethering_ident);
 423
 424         if (technology->tethering_passphrase != NULL)
 425                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 426                                                 DBUS_TYPE_STRING,
 427                                                 &technology->tethering_passphrase);
 428
 429         connman_dbus_dict_close(iter, &dict);
 430 }
 431
 432 static void technology_added_signal(struct connman_technology *technology)
 433 {
 434         DBusMessage *signal;
 435         DBusMessageIter iter;
 436
 437         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 438                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 439         if (signal == NULL)
 440                 return;
 441
 442         dbus_message_iter_init_append(signal, &iter);
 443         append_properties(&iter, technology);
 444
 445         dbus_connection_send(connection, signal, NULL);
 446         dbus_message_unref(signal);
 447 }
 448
 449 static void technology_removed_signal(struct connman_technology *technology)
 450 {
 451         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 452                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 453                         DBUS_TYPE_OBJECT_PATH, technology->path,
 454                         DBUS_TYPE_INVALID);
 455 }
 456
 457 static DBusMessage *get_properties(DBusConnection *conn,
 458                                         DBusMessage *message, void *user_data)
 459 {
 460         struct connman_technology *technology = user_data;
 461         DBusMessage *reply;
 462         DBusMessageIter iter;
 463
 464         reply = dbus_message_new_method_return(message);
 465         if (reply == NULL)
 466                 return NULL;
 467
 468         dbus_message_iter_init_append(reply, &iter);
 469         append_properties(&iter, technology);
 470
 471         return reply;
 472 }
 473
 474 void __connman_technology_list_struct(DBusMessageIter *array)
 475 {
 476         GSList *list;
 477         DBusMessageIter entry;
 478
 479         for (list = technology_list; list; list = list->next) {
 480                 struct connman_technology *technology = list->data;
 481
 482                 if (technology->path == NULL)
 483                         continue;
 484
 485                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 486                                 NULL, &entry);
 487                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 488                                 &technology->path);
 489                 append_properties(&entry, technology);
 490                 dbus_message_iter_close_container(array, &entry);
 491         }
 492 }
 493
 494 static DBusMessage *set_property(DBusConnection *conn,
 495                                         DBusMessage *msg, void *data)
 496 {
 497         struct connman_technology *technology = data;
 498         DBusMessageIter iter, value;
 499         const char *name;
 500         int type;
 501
 502         DBG("conn %p", conn);
 503
 504         if (dbus_message_iter_init(msg, &iter) == FALSE)
 505                 return __connman_error_invalid_arguments(msg);
 506
 507         dbus_message_iter_get_basic(&iter, &name);
 508         dbus_message_iter_next(&iter);
 509         dbus_message_iter_recurse(&iter, &value);
 510
 511         type = dbus_message_iter_get_arg_type(&value);
 512
 513         DBG("property %s", name);
 514
 515         if (g_str_equal(name, "Tethering") == TRUE) {
 516                 int err;
 517                 connman_bool_t tethering;
 518
 519                 if (type != DBUS_TYPE_BOOLEAN)
 520                         return __connman_error_invalid_arguments(msg);
 521
 522                 dbus_message_iter_get_basic(&value, &tethering);
 523
 524                 if (technology->tethering == tethering)
 525                         return __connman_error_in_progress(msg);
 526
 527                 err = set_tethering(technology, tethering);
 528                 if (err < 0)
 529                         return __connman_error_failed(msg, -err);
 530
 531         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 532                 const char *str;
 533
 534                 dbus_message_iter_get_basic(&value, &str);
 535
 536                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 537                         return __connman_error_not_supported(msg);
 538
 539                 technology->tethering_ident = g_strdup(str);
 540         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 541                 const char *str;
 542
 543                 dbus_message_iter_get_basic(&value, &str);
 544
 545                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 546                         return __connman_error_not_supported(msg);
 547
 548                 if (strlen(str) < 8)
 549                         return __connman_error_invalid_arguments(msg);
 550
 551                 technology->tethering_passphrase = g_strdup(str);
 552         } else
 553                 return __connman_error_invalid_property(msg);
 554
 555         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 556 }
 557
 558 static GDBusMethodTable technology_methods[] = {
 559         { "GetProperties", "",   "a{sv}", get_properties },
 560         { "SetProperty",   "sv", "",      set_property   },
 561         { },
 562 };
 563
 564 static GDBusSignalTable technology_signals[] = {
 565         { "PropertyChanged", "sv" },
 566         { },
 567 };
 568
 569 static struct connman_technology *technology_find(enum connman_service_type type)
 570 {
 571         GSList *list;
 572
 573         DBG("type %d", type);
 574
 575         for (list = technology_list; list; list = list->next) {
 576                 struct connman_technology *technology = list->data;
 577
 578                 if (technology->type == type)
 579                         return technology;
 580         }
 581
 582         return NULL;
 583 }
 584
 585 static struct connman_technology *technology_get(enum connman_service_type type)
 586 {
 587         struct connman_technology *technology;
 588         struct connman_technology_driver *driver = NULL;
 589         const char *str;
 590         GSList *list;
 591         int err;
 592
 593         DBG("type %d", type);
 594
 595         str = __connman_service_type2string(type);
 596         if (str == NULL)
 597                 return NULL;
 598
 599         technology = technology_find(type);
 600         if (technology != NULL)
 601                 return technology;
 602
 603         /* First check if we have a driver for this technology type */
 604         for (list = driver_list; list; list = list->next) {
 605                 driver = list->data;
 606
 607                 if (driver->type == type)
 608                         break;
 609                 else
 610                         driver = NULL;
 611         }
 612
 613         if (driver == NULL) {
 614                 DBG("No matching driver found for %s.",
 615                                 __connman_service_type2string(type));
 616                 return NULL;
 617         }
 618
 619         technology = g_try_new0(struct connman_technology, 1);
 620         if (technology == NULL)
 621                 return NULL;
 622
 623         technology->refcount = 1;
 624
 625         technology->type = type;
 626         technology->path = g_strdup_printf("%s/technology/%s",
 627                                                         CONNMAN_PATH, str);
 628
 629         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 630                                                         NULL, free_rfkill);
 631         technology->device_list = NULL;
 632
 633         technology->pending_reply = NULL;
 634         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 635
 636         load_state(technology);
 637
 638         if (g_dbus_register_interface(connection, technology->path,
 639                                         CONNMAN_TECHNOLOGY_INTERFACE,
 640                                         technology_methods, technology_signals,
 641                                         NULL, technology, NULL) == FALSE) {
 642                 connman_error("Failed to register %s", technology->path);
 643                 g_free(technology);
 644                 return NULL;
 645         }
 646
 647         technology_list = g_slist_append(technology_list, technology);
 648
 649         technology_added_signal(technology);
 650
 651         technology->driver = driver;
 652         err = driver->probe(technology);
 653         if (err != 0)
 654                 DBG("Driver probe failed for technology %p", technology);
 655
 656         DBG("technology %p", technology);
 657
 658         return technology;
 659 }
 660
 661 static void technology_put(struct connman_technology *technology)
 662 {
 663         DBG("technology %p", technology);
 664
 665         if (__sync_fetch_and_sub(&technology->refcount, 1) != 1)
 666                 return;
 667
 668         if (technology->driver) {
 669                 technology->driver->remove(technology);
 670                 technology->driver = NULL;
 671         }
 672
 673         technology_list = g_slist_remove(technology_list, technology);
 674
 675         technology_removed_signal(technology);
 676
 677         g_dbus_unregister_interface(connection, technology->path,
 678                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 679
 680         g_slist_free(technology->device_list);
 681         g_hash_table_destroy(technology->rfkill_list);
 682
 683         g_free(technology->path);
 684         g_free(technology->regdom);
 685         g_free(technology);
 686 }
 687
 688 void __connman_technology_add_interface(enum connman_service_type type,
 689                                 int index, const char *name, const char *ident)
 690 {
 691         struct connman_technology *technology;
 692
 693         switch (type) {
 694         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 695         case CONNMAN_SERVICE_TYPE_SYSTEM:
 696                 return;
 697         case CONNMAN_SERVICE_TYPE_ETHERNET:
 698         case CONNMAN_SERVICE_TYPE_WIFI:
 699         case CONNMAN_SERVICE_TYPE_WIMAX:
 700         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 701         case CONNMAN_SERVICE_TYPE_CELLULAR:
 702         case CONNMAN_SERVICE_TYPE_GPS:
 703         case CONNMAN_SERVICE_TYPE_VPN:
 704         case CONNMAN_SERVICE_TYPE_GADGET:
 705                 break;
 706         }
 707
 708         connman_info("Adding interface %s [ %s ]", name,
 709                                 __connman_service_type2string(type));
 710
 711         technology = technology_find(type);
 712
 713         if (technology == NULL || technology->driver == NULL
 714                         || technology->driver->add_interface == NULL)
 715                 return;
 716
 717         technology->driver->add_interface(technology,
 718                                         index, name, ident);
 719 }
 720
 721 void __connman_technology_remove_interface(enum connman_service_type type,
 722                                 int index, const char *name, const char *ident)
 723 {
 724         struct connman_technology *technology;
 725
 726         switch (type) {
 727         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 728         case CONNMAN_SERVICE_TYPE_SYSTEM:
 729                 return;
 730         case CONNMAN_SERVICE_TYPE_ETHERNET:
 731         case CONNMAN_SERVICE_TYPE_WIFI:
 732         case CONNMAN_SERVICE_TYPE_WIMAX:
 733         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 734         case CONNMAN_SERVICE_TYPE_CELLULAR:
 735         case CONNMAN_SERVICE_TYPE_GPS:
 736         case CONNMAN_SERVICE_TYPE_VPN:
 737         case CONNMAN_SERVICE_TYPE_GADGET:
 738                 break;
 739         }
 740
 741         connman_info("Remove interface %s [ %s ]", name,
 742                                 __connman_service_type2string(type));
 743
 744         technology = technology_find(type);
 745
 746         if (technology == NULL || technology->driver == NULL)
 747                 return;
 748
 749         if (technology->driver->remove_interface)
 750                 technology->driver->remove_interface(technology, index);
 751 }
 752
 753 int __connman_technology_add_device(struct connman_device *device)
 754 {
 755         struct connman_technology *technology;
 756         enum connman_service_type type;
 757
 758         DBG("device %p", device);
 759
 760         type = __connman_device_get_service_type(device);
 761         __connman_notifier_register(type);
 762
 763         technology = technology_get(type);
 764         if (technology == NULL)
 765                 return -ENXIO;
 766
 767         if (technology->enable_persistent && !global_offlinemode)
 768                 __connman_device_enable(device);
 769         /* if technology persistent state is offline */
 770         if (!technology->enable_persistent)
 771                 __connman_device_disable(device);
 772
 773         technology->device_list = g_slist_append(technology->device_list,
 774                                                                 device);
 775
 776         return 0;
 777 }
 778
 779 int __connman_technology_remove_device(struct connman_device *device)
 780 {
 781         struct connman_technology *technology;
 782         enum connman_service_type type;
 783
 784         DBG("device %p", device);
 785
 786         type = __connman_device_get_service_type(device);
 787         __connman_notifier_unregister(type);
 788
 789         technology = technology_find(type);
 790         if (technology == NULL)
 791                 return -ENXIO;
 792
 793         technology->device_list = g_slist_remove(technology->device_list,
 794                                                                 device);
 795         if (technology->device_list == NULL) {
 796                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 797                 state_changed(technology);
 798         }
 799
 800         return 0;
 801 }
 802
 803 static gboolean technology_pending_reply(gpointer user_data)
 804 {
 805         struct connman_technology *technology = user_data;
 806         DBusMessage *reply;
 807
 808         /* Power request timedout, send ETIMEDOUT. */
 809         if (technology->pending_reply != NULL) {
 810                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 811                 if (reply != NULL)
 812                         g_dbus_send_message(connection, reply);
 813
 814                 dbus_message_unref(technology->pending_reply);
 815                 technology->pending_reply = NULL;
 816                 technology->pending_timeout = 0;
 817         }
 818
 819         return FALSE;
 820 }
 821
 822 int __connman_technology_enabled(enum connman_service_type type)
 823 {
 824         struct connman_technology *technology;
 825
 826         technology = technology_find(type);
 827         if (technology == NULL)
 828                 return -ENXIO;
 829
 830         if (__sync_fetch_and_add(&technology->enabled, 1) == 0) {
 831                 __connman_notifier_enable(type);
 832                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 833                 state_changed(technology);
 834         }
 835
 836         if (technology->pending_reply != NULL) {
 837                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 838                 dbus_message_unref(technology->pending_reply);
 839                 g_source_remove(technology->pending_timeout);
 840                 technology->pending_reply = NULL;
 841                 technology->pending_timeout = 0;
 842         }
 843
 844         return 0;
 845 }
 846
 847 int __connman_technology_enable(enum connman_service_type type, DBusMessage *msg)
 848 {
 849         struct connman_technology *technology;
 850         GSList *list;
 851         int err = 0;
 852         int ret = -ENODEV;
 853         DBusMessage *reply;
 854
 855         DBG("type %d enable", type);
 856
 857         technology = technology_find(type);
 858         if (technology == NULL) {
 859                 err = -ENXIO;
 860                 goto done;
 861         }
 862
 863         if (technology->pending_reply != NULL) {
 864                 err = -EBUSY;
 865                 goto done;
 866         }
 867
 868         if (msg != NULL) {
 869                 /*
 870                  * This is a bit of a trick. When msg is not NULL it means
 871                  * thats technology_enable was invoked from the manager API. Hence we save
 872                  * the state here.
 873                  */
 874                 technology->enable_persistent = TRUE;
 875                 save_state(technology);
 876         }
 877
 878         __connman_rfkill_block(technology->type, FALSE);
 879
 880         /*
 881          * An empty device list means that devices in the technology
 882          * were rfkill blocked. The unblock above will enable the devs.
 883          */
 884         if (technology->device_list == NULL) {
 885                 ret = 0;
 886                 goto done;
 887         }
 888
 889         for (list = technology->device_list; list; list = list->next) {
 890                 struct connman_device *device = list->data;
 891
 892                 err = __connman_device_enable(device);
 893                 /*
 894                  * err = 0 : Device was enabled right away.
 895                  * If atleast one device gets enabled, we consider
 896                  * the technology to be enabled.
 897                  */
 898                 if (err == 0)
 899                         ret = 0;
 900         }
 901
 902 done:
 903         if (ret == 0) {
 904                 if (msg != NULL)
 905                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 906                 return ret;
 907         }
 908
 909         if (msg != NULL) {
 910                 if (err == -EINPROGRESS) {
 911                         technology->pending_reply = dbus_message_ref(msg);
 912                         technology->pending_timeout = g_timeout_add_seconds(10,
 913                                         technology_pending_reply, technology);
 914                 } else {
 915                         reply = __connman_error_failed(msg, -err);
 916                         if (reply != NULL)
 917                                 g_dbus_send_message(connection, reply);
 918                 }
 919         }
 920
 921         return err;
 922 }
 923
 924 int __connman_technology_disabled(enum connman_service_type type)
 925 {
 926         struct connman_technology *technology;
 927
 928         technology = technology_find(type);
 929         if (technology == NULL)
 930                 return -ENXIO;
 931
 932         if (technology->pending_reply != NULL) {
 933                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 934                 dbus_message_unref(technology->pending_reply);
 935                 g_source_remove(technology->pending_timeout);
 936                 technology->pending_reply = NULL;
 937                 technology->pending_timeout = 0;
 938         }
 939
 940         if (__sync_fetch_and_sub(&technology->enabled, 1) != 1)
 941                 return 0;
 942
 943         __connman_notifier_disable(type);
 944         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 945         state_changed(technology);
 946
 947         return 0;
 948 }
 949
 950 int __connman_technology_disable(enum connman_service_type type, DBusMessage *msg)
 951 {
 952         struct connman_technology *technology;
 953         GSList *list;
 954         int err = 0;
 955         int ret = -ENODEV;
 956         DBusMessage *reply;
 957
 958         DBG("type %d disable", type);
 959
 960         technology = technology_find(type);
 961         if (technology == NULL) {
 962                 err = -ENXIO;
 963                 goto done;
 964         }
 965
 966         if (technology->pending_reply != NULL) {
 967                 err = -EBUSY;
 968                 goto done;
 969         }
 970
 971         if (technology->tethering == TRUE)
 972                 set_tethering(technology, FALSE);
 973
 974         if (msg != NULL) {
 975                 technology->enable_persistent = FALSE;
 976                 save_state(technology);
 977         }
 978
 979         __connman_rfkill_block(technology->type, TRUE);
 980
 981         for (list = technology->device_list; list; list = list->next) {
 982                 struct connman_device *device = list->data;
 983
 984                 err = __connman_device_disable(device);
 985                 if (err == 0)
 986                         ret = 0;
 987         }
 988
 989 done:
 990         if (ret == 0) {
 991                 if (msg != NULL)
 992                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 993                 return ret;
 994         }
 995
 996         if (msg != NULL) {
 997                 if (err == -EINPROGRESS) {
 998                         technology->pending_reply = dbus_message_ref(msg);
 999                         technology->pending_timeout = g_timeout_add_seconds(10,
1000                                         technology_pending_reply, technology);
1001                 } else {
1002                         reply = __connman_error_failed(msg, -err);
1003                         if (reply != NULL)
1004                                 g_dbus_send_message(connection, reply);
1005                 }
1006         }
1007
1008         return err;
1009 }
1010
1011 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
1012 {
1013         GSList *list;
1014         int err = -EINVAL;
1015
1016         if (global_offlinemode == offlinemode)
1017                 return 0;
1018
1019         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1020
1021         /*
1022          * This is a bit tricky. When you set offlinemode, there is no
1023          * way to differentiate between attempting offline mode and
1024          * resuming offlinemode from last saved profile. We need that
1025          * information in rfkill_update, otherwise it falls back on the
1026          * technology's persistent state. Hence we set the offline mode here
1027          * but save it & call the notifier only if its successful.
1028          */
1029
1030         global_offlinemode = offlinemode;
1031
1032         /* Traverse technology list, enable/disable each technology. */
1033         for (list = technology_list; list; list = list->next) {
1034                 struct connman_technology *technology = list->data;
1035
1036                 if (offlinemode)
1037                         err = __connman_technology_disable(technology->type, NULL);
1038
1039                 if (!offlinemode && technology->enable_persistent)
1040                         err = __connman_technology_enable(technology->type, NULL);
1041         }
1042
1043         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1044                 connman_technology_save_offlinemode();
1045                 __connman_notifier_offlinemode(offlinemode);
1046         } else
1047                 global_offlinemode = connman_technology_load_offlinemode();
1048
1049         return err;
1050 }
1051
1052 int __connman_technology_add_rfkill(unsigned int index,
1053                                         enum connman_service_type type,
1054                                                 connman_bool_t softblock,
1055                                                 connman_bool_t hardblock)
1056 {
1057         struct connman_technology *technology;
1058         struct connman_rfkill *rfkill;
1059
1060         DBG("index %u type %d soft %u hard %u", index, type,
1061                                                         softblock, hardblock);
1062
1063         technology = technology_get(type);
1064         if (technology == NULL)
1065                 return -ENXIO;
1066
1067         rfkill = g_try_new0(struct connman_rfkill, 1);
1068         if (rfkill == NULL)
1069                 return -ENOMEM;
1070
1071         __connman_notifier_register(type);
1072
1073         rfkill->index = index;
1074         rfkill->type = type;
1075         rfkill->softblock = softblock;
1076         rfkill->hardblock = hardblock;
1077
1078         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
1079
1080         if (hardblock) {
1081                 DBG("%s is switched off.", get_name(type));
1082                 return 0;
1083         }
1084
1085         /*
1086          * If Offline mode is on, we softblock the device if it isnt already.
1087          * If Offline mode is off, we rely on the persistent state of tech.
1088          */
1089         if (global_offlinemode) {
1090                 if (!softblock)
1091                         return __connman_rfkill_block(type, TRUE);
1092         } else {
1093                 if (technology->enable_persistent && softblock)
1094                         return __connman_rfkill_block(type, FALSE);
1095                 /* if technology persistent state is offline */
1096                 if (!technology->enable_persistent && !softblock)
1097                         return __connman_rfkill_block(type, TRUE);
1098         }
1099
1100         return 0;
1101 }
1102
1103 int __connman_technology_update_rfkill(unsigned int index,
1104                                         enum connman_service_type type,
1105                                                 connman_bool_t softblock,
1106                                                 connman_bool_t hardblock)
1107 {
1108         struct connman_technology *technology;
1109         struct connman_rfkill *rfkill;
1110
1111         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1112
1113         technology = technology_find(type);
1114         if (technology == NULL)
1115                 return -ENXIO;
1116
1117         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1118         if (rfkill == NULL)
1119                 return -ENXIO;
1120
1121         if (rfkill->softblock == softblock &&
1122                 rfkill->hardblock == hardblock)
1123                 return 0;
1124
1125         rfkill->softblock = softblock;
1126         rfkill->hardblock = hardblock;
1127
1128         if (hardblock) {
1129                 DBG("%s is switched off.", get_name(type));
1130                 return 0;
1131         }
1132
1133         if (!global_offlinemode) {
1134                 if (technology->enable_persistent && softblock)
1135                         return __connman_rfkill_block(type, FALSE);
1136                 if (!technology->enable_persistent && !softblock)
1137                         return __connman_rfkill_block(type, TRUE);
1138         }
1139
1140         return 0;
1141 }
1142
1143 int __connman_technology_remove_rfkill(unsigned int index,
1144                                         enum connman_service_type type)
1145 {
1146         struct connman_technology *technology;
1147         struct connman_rfkill *rfkill;
1148
1149         DBG("index %u", index);
1150
1151         technology = technology_find(type);
1152         if (technology == NULL)
1153                 return -ENXIO;
1154
1155         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1156         if (rfkill == NULL)
1157                 return -ENXIO;
1158
1159         g_hash_table_remove(technology->rfkill_list, &index);
1160
1161         technology_put(technology);
1162
1163         return 0;
1164 }
1165
1166 int __connman_technology_init(void)
1167 {
1168         DBG("");
1169
1170         connection = connman_dbus_get_connection();
1171
1172         global_offlinemode = connman_technology_load_offlinemode();
1173
1174         return 0;
1175 }
1176
1177 void __connman_technology_cleanup(void)
1178 {
1179         DBG("");
1180
1181         dbus_connection_unref(connection);
1182 }