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         gint 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         gint 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         GSList *list;
  97         struct connman_technology *technology;
  98
  99         DBG("driver %p name %s", driver, driver->name);
 100
 101         driver_list = g_slist_insert_sorted(driver_list, driver,
 102                                                         compare_priority);
 103
 104         for (list = technology_list; list; list = list->next) {
 105                 technology = list->data;
 106
 107                 if (technology->driver != NULL)
 108                         continue;
 109
 110                 if (technology->type == driver->type)
 111                         technology->driver = driver;
 112         }
 113
 114         return 0;
 115 }
 116
 117 /**
 118  * connman_technology_driver_unregister:
 119  * @driver: Technology driver definition
 120  *
 121  * Remove a previously registered technology driver
 122  */
 123 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 124 {
 125         GSList *list;
 126         struct connman_technology *technology;
 127
 128         DBG("driver %p name %s", driver, driver->name);
 129
 130         for (list = technology_list; list; list = list->next) {
 131                 technology = list->data;
 132
 133                 if (technology->driver == NULL)
 134                         continue;
 135
 136                 if (technology->type == driver->type) {
 137                         technology->driver->remove(technology);
 138                         technology->driver = NULL;
 139                 }
 140         }
 141
 142         driver_list = g_slist_remove(driver_list, driver);
 143 }
 144
 145 static void tethering_changed(struct connman_technology *technology)
 146 {
 147         connman_bool_t tethering = technology->tethering;
 148
 149         connman_dbus_property_changed_basic(technology->path,
 150                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 151                                                 DBUS_TYPE_BOOLEAN, &tethering);
 152 }
 153
 154 void connman_technology_tethering_notify(struct connman_technology *technology,
 155                                                         connman_bool_t enabled)
 156 {
 157         DBG("technology %p enabled %u", technology, enabled);
 158
 159         if (technology->tethering == enabled)
 160                 return;
 161
 162         technology->tethering = enabled;
 163
 164         tethering_changed(technology);
 165
 166         if (enabled == TRUE)
 167                 __connman_tethering_set_enabled();
 168         else
 169                 __connman_tethering_set_disabled();
 170 }
 171
 172 static int set_tethering(struct connman_technology *technology,
 173                                 const char *bridge, connman_bool_t enabled)
 174 {
 175         const char *ident, *passphrase;
 176
 177         ident = technology->tethering_ident;
 178         passphrase = technology->tethering_passphrase;
 179
 180         if (technology->driver == NULL ||
 181                         technology->driver->set_tethering == 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 void __connman_technology_list(DBusMessageIter *iter, void *user_data)
 231 {
 232         GSList *list;
 233
 234         for (list = technology_list; list; list = list->next) {
 235                 struct connman_technology *technology = list->data;
 236
 237                 if (technology->path == NULL)
 238                         continue;
 239
 240                 dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH,
 241                                                         &technology->path);
 242         }
 243 }
 244
 245 static void technologies_changed(void)
 246 {
 247         connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 248                         CONNMAN_MANAGER_INTERFACE, "Technologies",
 249                         DBUS_TYPE_OBJECT_PATH, __connman_technology_list, NULL);
 250 }
 251
 252 static const char *state2string(enum connman_technology_state state)
 253 {
 254         switch (state) {
 255         case CONNMAN_TECHNOLOGY_STATE_UNKNOWN:
 256                 break;
 257         case CONNMAN_TECHNOLOGY_STATE_OFFLINE:
 258                 return "offline";
 259         case CONNMAN_TECHNOLOGY_STATE_ENABLED:
 260                 return "enabled";
 261         case CONNMAN_TECHNOLOGY_STATE_CONNECTED:
 262                 return "connected";
 263         }
 264
 265         return NULL;
 266 }
 267
 268 static void state_changed(struct connman_technology *technology)
 269 {
 270         const char *str;
 271
 272         str = state2string(technology->state);
 273         if (str == NULL)
 274                 return;
 275
 276         connman_dbus_property_changed_basic(technology->path,
 277                                 CONNMAN_TECHNOLOGY_INTERFACE, "State",
 278                                                 DBUS_TYPE_STRING, &str);
 279 }
 280
 281 static const char *get_name(enum connman_service_type type)
 282 {
 283         switch (type) {
 284         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 285         case CONNMAN_SERVICE_TYPE_SYSTEM:
 286         case CONNMAN_SERVICE_TYPE_GPS:
 287         case CONNMAN_SERVICE_TYPE_VPN:
 288         case CONNMAN_SERVICE_TYPE_GADGET:
 289                 break;
 290         case CONNMAN_SERVICE_TYPE_ETHERNET:
 291                 return "Wired";
 292         case CONNMAN_SERVICE_TYPE_WIFI:
 293                 return "WiFi";
 294         case CONNMAN_SERVICE_TYPE_WIMAX:
 295                 return "WiMAX";
 296         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 297                 return "Bluetooth";
 298         case CONNMAN_SERVICE_TYPE_CELLULAR:
 299                 return "3G";
 300         }
 301
 302         return NULL;
 303 }
 304
 305 static int load_state(struct connman_technology *technology)
 306 {
 307         GKeyFile *keyfile;
 308         gchar *identifier;
 309         GError *error = NULL;
 310         connman_bool_t enable;
 311
 312         DBG("technology %p", technology);
 313
 314         keyfile = __connman_storage_open_profile("default");
 315         if (keyfile == NULL)
 316                 return 0;
 317
 318         identifier = g_strdup_printf("%s", get_name(technology->type));
 319         if (identifier == NULL)
 320                 goto done;
 321
 322         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 323         if (error == NULL)
 324                 technology->enable_persistent = enable;
 325         else
 326                 technology->enable_persistent = FALSE;
 327
 328         g_clear_error(&error);
 329 done:
 330         g_free(identifier);
 331
 332         __connman_storage_close_profile("default", keyfile, FALSE);
 333
 334         return 0;
 335 }
 336
 337 static int save_state(struct connman_technology *technology)
 338 {
 339         GKeyFile *keyfile;
 340         gchar *identifier;
 341
 342         DBG("technology %p", technology);
 343
 344         keyfile = __connman_storage_open_profile("default");
 345         if (keyfile == NULL)
 346                 return 0;
 347
 348         identifier = g_strdup_printf("%s", get_name(technology->type));
 349         if (identifier == NULL)
 350                 goto done;
 351
 352         g_key_file_set_boolean(keyfile, identifier, "Enable",
 353                                 technology->enable_persistent);
 354
 355 done:
 356         g_free(identifier);
 357
 358         __connman_storage_close_profile("default", keyfile, TRUE);
 359
 360         return 0;
 361 }
 362
 363 connman_bool_t __connman_technology_get_offlinemode(void)
 364 {
 365         return global_offlinemode;
 366 }
 367
 368 static int connman_technology_save_offlinemode()
 369 {
 370         GKeyFile *keyfile;
 371
 372         keyfile = __connman_storage_open_profile("default");
 373         if (keyfile == NULL)
 374                 return -EIO;
 375
 376         g_key_file_set_boolean(keyfile, "global",
 377                                         "OfflineMode", global_offlinemode);
 378
 379         __connman_storage_close_profile("default", keyfile, TRUE);
 380
 381         return 0;
 382 }
 383
 384 static connman_bool_t connman_technology_load_offlinemode()
 385 {
 386         GKeyFile *keyfile;
 387         GError *error = NULL;
 388         connman_bool_t offlinemode;
 389
 390         /* If there is a error, we enable offlinemode */
 391         keyfile = __connman_storage_open_profile("default");
 392         if (keyfile == NULL)
 393                 return TRUE;
 394
 395         offlinemode = g_key_file_get_boolean(keyfile, "global",
 396                                                 "OfflineMode", &error);
 397         if (error != NULL) {
 398                 offlinemode = TRUE;
 399                 g_clear_error(&error);
 400         }
 401         __connman_storage_close_profile("default", keyfile, FALSE);
 402
 403         return offlinemode;
 404 }
 405
 406 static DBusMessage *get_properties(DBusConnection *conn,
 407                                         DBusMessage *message, void *user_data)
 408 {
 409         struct connman_technology *technology = user_data;
 410         DBusMessage *reply;
 411         DBusMessageIter array, dict;
 412         const char *str;
 413
 414         reply = dbus_message_new_method_return(message);
 415         if (reply == NULL)
 416                 return NULL;
 417
 418         dbus_message_iter_init_append(reply, &array);
 419
 420         connman_dbus_dict_open(&array, &dict);
 421
 422         str = state2string(technology->state);
 423         if (str != NULL)
 424                 connman_dbus_dict_append_basic(&dict, "State",
 425                                                 DBUS_TYPE_STRING, &str);
 426
 427         str = get_name(technology->type);
 428         if (str != NULL)
 429                 connman_dbus_dict_append_basic(&dict, "Name",
 430                                                 DBUS_TYPE_STRING, &str);
 431
 432         str = __connman_service_type2string(technology->type);
 433         if (str != NULL)
 434                 connman_dbus_dict_append_basic(&dict, "Type",
 435                                                 DBUS_TYPE_STRING, &str);
 436
 437         connman_dbus_dict_append_basic(&dict, "Tethering",
 438                                         DBUS_TYPE_BOOLEAN,
 439                                         &technology->tethering);
 440
 441         if (technology->tethering_ident != NULL)
 442                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 443                                                 DBUS_TYPE_STRING,
 444                                                 &technology->tethering_ident);
 445
 446         if (technology->tethering_passphrase != NULL)
 447                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 448                                                 DBUS_TYPE_STRING,
 449                                                 &technology->tethering_passphrase);
 450
 451         connman_dbus_dict_close(&array, &dict);
 452
 453         return reply;
 454 }
 455
 456 static DBusMessage *set_property(DBusConnection *conn,
 457                                         DBusMessage *msg, void *data)
 458 {
 459         struct connman_technology *technology = data;
 460         DBusMessageIter iter, value;
 461         const char *name;
 462         int type;
 463
 464         DBG("conn %p", conn);
 465
 466         if (dbus_message_iter_init(msg, &iter) == FALSE)
 467                 return __connman_error_invalid_arguments(msg);
 468
 469         dbus_message_iter_get_basic(&iter, &name);
 470         dbus_message_iter_next(&iter);
 471         dbus_message_iter_recurse(&iter, &value);
 472
 473         type = dbus_message_iter_get_arg_type(&value);
 474
 475         DBG("property %s", name);
 476
 477         if (g_str_equal(name, "Tethering") == TRUE) {
 478                 int err;
 479                 connman_bool_t tethering;
 480                 const char *bridge;
 481
 482                 if (type != DBUS_TYPE_BOOLEAN)
 483                         return __connman_error_invalid_arguments(msg);
 484
 485                 dbus_message_iter_get_basic(&value, &tethering);
 486
 487                 if (technology->tethering == tethering)
 488                         return __connman_error_in_progress(msg);
 489
 490                 bridge = __connman_tethering_get_bridge();
 491                 if (bridge == NULL)
 492                         return __connman_error_not_supported(msg);
 493
 494                 err = set_tethering(technology, bridge, tethering);
 495                 if (err < 0)
 496                         return __connman_error_failed(msg, -err);
 497
 498         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 499                 const char *str;
 500
 501                 dbus_message_iter_get_basic(&value, &str);
 502
 503                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 504                         return __connman_error_not_supported(msg);
 505
 506                 technology->tethering_ident = g_strdup(str);
 507         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 508                 const char *str;
 509
 510                 dbus_message_iter_get_basic(&value, &str);
 511
 512                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 513                         return __connman_error_not_supported(msg);
 514
 515                 if (strlen(str) < 8)
 516                         return __connman_error_invalid_arguments(msg);
 517
 518                 technology->tethering_passphrase = g_strdup(str);
 519         } else
 520                 return __connman_error_invalid_property(msg);
 521
 522         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 523 }
 524
 525 static GDBusMethodTable technology_methods[] = {
 526         { "GetProperties", "",   "a{sv}", get_properties },
 527         { "SetProperty",   "sv", "",      set_property   },
 528         { },
 529 };
 530
 531 static GDBusSignalTable technology_signals[] = {
 532         { "PropertyChanged", "sv" },
 533         { },
 534 };
 535
 536 static struct connman_technology *technology_find(enum connman_service_type type)
 537 {
 538         GSList *list;
 539
 540         DBG("type %d", type);
 541
 542         for (list = technology_list; list; list = list->next) {
 543                 struct connman_technology *technology = list->data;
 544
 545                 if (technology->type == type)
 546                         return technology;
 547         }
 548
 549         return NULL;
 550 }
 551
 552 static struct connman_technology *technology_get(enum connman_service_type type)
 553 {
 554         struct connman_technology *technology;
 555         const char *str;
 556         GSList *list;
 557
 558         DBG("type %d", type);
 559
 560         technology = technology_find(type);
 561         if (technology != NULL) {
 562                 g_atomic_int_inc(&technology->refcount);
 563                 goto done;
 564         }
 565
 566         str = __connman_service_type2string(type);
 567         if (str == NULL)
 568                 return NULL;
 569
 570         technology = g_try_new0(struct connman_technology, 1);
 571         if (technology == NULL)
 572                 return NULL;
 573
 574         technology->refcount = 1;
 575
 576         technology->type = type;
 577         technology->path = g_strdup_printf("%s/technology/%s",
 578                                                         CONNMAN_PATH, str);
 579
 580         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 581                                                         NULL, free_rfkill);
 582         technology->device_list = NULL;
 583
 584         technology->pending_reply = NULL;
 585         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 586
 587         load_state(technology);
 588
 589         if (g_dbus_register_interface(connection, technology->path,
 590                                         CONNMAN_TECHNOLOGY_INTERFACE,
 591                                         technology_methods, technology_signals,
 592                                         NULL, technology, NULL) == FALSE) {
 593                 connman_error("Failed to register %s", technology->path);
 594                 g_free(technology);
 595                 return NULL;
 596         }
 597
 598         technology_list = g_slist_append(technology_list, technology);
 599
 600         technologies_changed();
 601
 602         if (technology->driver != NULL)
 603                 goto done;
 604
 605         for (list = driver_list; list; list = list->next) {
 606                 struct connman_technology_driver *driver = list->data;
 607
 608                 DBG("driver %p name %s", driver, driver->name);
 609
 610                 if (driver->type != technology->type)
 611                         continue;
 612
 613                 if (driver->probe(technology) == 0) {
 614                         technology->driver = driver;
 615                         break;
 616                 }
 617         }
 618
 619 done:
 620         DBG("technology %p", technology);
 621
 622         return technology;
 623 }
 624
 625 static void technology_put(struct connman_technology *technology)
 626 {
 627         DBG("technology %p", technology);
 628
 629         if (g_atomic_int_dec_and_test(&technology->refcount) == FALSE)
 630                 return;
 631
 632         if (technology->driver) {
 633                 technology->driver->remove(technology);
 634                 technology->driver = NULL;
 635         }
 636
 637         technology_list = g_slist_remove(technology_list, technology);
 638
 639         technologies_changed();
 640
 641         g_dbus_unregister_interface(connection, technology->path,
 642                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 643
 644         g_slist_free(technology->device_list);
 645         g_hash_table_destroy(technology->rfkill_list);
 646
 647         g_free(technology->path);
 648         g_free(technology->regdom);
 649         g_free(technology);
 650 }
 651
 652 void __connman_technology_add_interface(enum connman_service_type type,
 653                                 int index, const char *name, const char *ident)
 654 {
 655         struct connman_technology *technology;
 656
 657         switch (type) {
 658         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 659         case CONNMAN_SERVICE_TYPE_SYSTEM:
 660                 return;
 661         case CONNMAN_SERVICE_TYPE_ETHERNET:
 662         case CONNMAN_SERVICE_TYPE_WIFI:
 663         case CONNMAN_SERVICE_TYPE_WIMAX:
 664         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 665         case CONNMAN_SERVICE_TYPE_CELLULAR:
 666         case CONNMAN_SERVICE_TYPE_GPS:
 667         case CONNMAN_SERVICE_TYPE_VPN:
 668         case CONNMAN_SERVICE_TYPE_GADGET:
 669                 break;
 670         }
 671
 672         connman_info("Create interface %s [ %s ]", name,
 673                                 __connman_service_type2string(type));
 674
 675         technology = technology_get(type);
 676
 677         if (technology == NULL || technology->driver == NULL
 678                         || technology->driver->add_interface == NULL)
 679                 return;
 680
 681         technology->driver->add_interface(technology,
 682                                         index, name, ident);
 683 }
 684
 685 void __connman_technology_remove_interface(enum connman_service_type type,
 686                                 int index, const char *name, const char *ident)
 687 {
 688         struct connman_technology *technology;
 689
 690         switch (type) {
 691         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 692         case CONNMAN_SERVICE_TYPE_SYSTEM:
 693                 return;
 694         case CONNMAN_SERVICE_TYPE_ETHERNET:
 695         case CONNMAN_SERVICE_TYPE_WIFI:
 696         case CONNMAN_SERVICE_TYPE_WIMAX:
 697         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 698         case CONNMAN_SERVICE_TYPE_CELLULAR:
 699         case CONNMAN_SERVICE_TYPE_GPS:
 700         case CONNMAN_SERVICE_TYPE_VPN:
 701         case CONNMAN_SERVICE_TYPE_GADGET:
 702                 break;
 703         }
 704
 705         connman_info("Remove interface %s [ %s ]", name,
 706                                 __connman_service_type2string(type));
 707
 708         technology = technology_find(type);
 709
 710         if (technology == NULL || technology->driver == NULL)
 711                 return;
 712
 713         if (technology->driver->remove_interface)
 714                 technology->driver->remove_interface(technology, index);
 715
 716         technology_put(technology);
 717 }
 718
 719 int __connman_technology_add_device(struct connman_device *device)
 720 {
 721         struct connman_technology *technology;
 722         enum connman_service_type type;
 723
 724         DBG("device %p", device);
 725
 726         type = __connman_device_get_service_type(device);
 727         __connman_notifier_register(type);
 728
 729         technology = technology_get(type);
 730         if (technology == NULL)
 731                 return -ENXIO;
 732
 733         if (technology->enable_persistent && !global_offlinemode)
 734                 __connman_device_enable(device);
 735         /* if technology persistent state is offline */
 736         if (!technology->enable_persistent)
 737                 __connman_device_disable(device);
 738
 739         technology->device_list = g_slist_append(technology->device_list,
 740                                                                 device);
 741
 742         return 0;
 743 }
 744
 745 int __connman_technology_remove_device(struct connman_device *device)
 746 {
 747         struct connman_technology *technology;
 748         enum connman_service_type type;
 749
 750         DBG("device %p", device);
 751
 752         type = __connman_device_get_service_type(device);
 753         __connman_notifier_unregister(type);
 754
 755         technology = technology_find(type);
 756         if (technology == NULL)
 757                 return -ENXIO;
 758
 759         technology->device_list = g_slist_remove(technology->device_list,
 760                                                                 device);
 761         if (technology->device_list == NULL) {
 762                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 763                 state_changed(technology);
 764         }
 765
 766         return 0;
 767 }
 768
 769 static gboolean technology_pending_reply(gpointer user_data)
 770 {
 771         struct connman_technology *technology = user_data;
 772         DBusMessage *reply;
 773
 774         /* Power request timedout, send ETIMEDOUT. */
 775         if (technology->pending_reply != NULL) {
 776                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 777                 if (reply != NULL)
 778                         g_dbus_send_message(connection, reply);
 779
 780                 dbus_message_unref(technology->pending_reply);
 781                 technology->pending_reply = NULL;
 782                 technology->pending_timeout = 0;
 783         }
 784
 785         return FALSE;
 786 }
 787
 788 int __connman_technology_enabled(enum connman_service_type type)
 789 {
 790         struct connman_technology *technology;
 791
 792         technology = technology_find(type);
 793         if (technology == NULL)
 794                 return -ENXIO;
 795
 796         if (g_atomic_int_exchange_and_add(&technology->enabled, 1) == 0) {
 797                 __connman_notifier_enable(type);
 798                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 799                 state_changed(technology);
 800         }
 801
 802         if (technology->pending_reply != NULL) {
 803                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 804                 dbus_message_unref(technology->pending_reply);
 805                 technology->pending_reply = NULL;
 806                 technology->pending_timeout = 0;
 807         }
 808
 809         return 0;
 810 }
 811
 812 int __connman_technology_enable(enum connman_service_type type, DBusMessage *msg)
 813 {
 814         struct connman_technology *technology;
 815         GSList *list;
 816         int err = 0;
 817         int ret = -ENODEV;
 818         DBusMessage *reply;
 819
 820         DBG("type %d enable", type);
 821
 822         technology = technology_find(type);
 823         if (technology == NULL) {
 824                 err = -ENXIO;
 825                 goto done;
 826         }
 827
 828         if (technology->pending_reply != NULL) {
 829                 err = -EBUSY;
 830                 goto done;
 831         }
 832
 833         if (msg != NULL) {
 834                 technology->pending_reply = dbus_message_ref(msg);
 835                 /*
 836                  * This is a bit of a trick. When msg is not NULL it means
 837                  * thats technology_enable was invoked from the manager API. Hence we save
 838                  * the state here.
 839                  */
 840                 technology->enable_persistent = TRUE;
 841                 save_state(technology);
 842         }
 843
 844         __connman_rfkill_block(technology->type, FALSE);
 845
 846         for (list = technology->device_list; list; list = list->next) {
 847                 struct connman_device *device = list->data;
 848
 849                 err = __connman_device_enable(device);
 850                 /*
 851                  * err = 0 : Device was enabled right away.
 852                  * If atleast one device gets enabled, we consider
 853                  * the technology to be enabled.
 854                  */
 855                 if (err == 0)
 856                         ret = 0;
 857         }
 858
 859 done:
 860         if (ret == 0)
 861                 return ret;
 862
 863         if (msg != NULL) {
 864                 if (err == -EINPROGRESS)
 865                         technology->pending_timeout = g_timeout_add_seconds(10,
 866                                         technology_pending_reply, technology);
 867                 else {
 868                         reply = __connman_error_failed(msg, -err);
 869                         if (reply != NULL)
 870                                 g_dbus_send_message(connection, reply);
 871                 }
 872         }
 873
 874         return err;
 875 }
 876
 877 int __connman_technology_disabled(enum connman_service_type type)
 878 {
 879         struct connman_technology *technology;
 880
 881         technology = technology_find(type);
 882         if (technology == NULL)
 883                 return -ENXIO;
 884
 885         if (technology->pending_reply != NULL) {
 886                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 887                 dbus_message_unref(technology->pending_reply);
 888                 technology->pending_reply = NULL;
 889         }
 890
 891         if (g_atomic_int_dec_and_test(&technology->enabled) == TRUE) {
 892                 __connman_notifier_disable(type);
 893                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 894                 state_changed(technology);
 895         }
 896
 897         return 0;
 898 }
 899
 900 int __connman_technology_disable(enum connman_service_type type, DBusMessage *msg)
 901 {
 902         struct connman_technology *technology;
 903         GSList *list;
 904         int err = 0;
 905         int ret = -ENODEV;
 906         DBusMessage *reply;
 907
 908         DBG("type %d disable", type);
 909
 910         technology = technology_find(type);
 911         if (technology == NULL) {
 912                 err = -ENXIO;
 913                 goto done;
 914         }
 915
 916         if (technology->pending_reply != NULL) {
 917                 err = -EBUSY;
 918                 goto done;
 919         }
 920
 921         if (msg != NULL) {
 922                 technology->pending_reply = dbus_message_ref(msg);
 923                 technology->enable_persistent = FALSE;
 924                 save_state(technology);
 925         }
 926
 927         __connman_rfkill_block(technology->type, TRUE);
 928
 929         for (list = technology->device_list; list; list = list->next) {
 930                 struct connman_device *device = list->data;
 931
 932                 err = __connman_device_disable(device);
 933                 if (err == 0)
 934                         ret = 0;
 935         }
 936
 937 done:
 938         if (ret == 0)
 939                 return ret;
 940
 941         if (msg != NULL) {
 942                 if (err == -EINPROGRESS)
 943                         technology->pending_timeout = g_timeout_add_seconds(10,
 944                                         technology_pending_reply, technology);
 945                 else {
 946                         reply = __connman_error_failed(msg, -err);
 947                         if (reply != NULL)
 948                                 g_dbus_send_message(connection, reply);
 949                 }
 950         }
 951
 952         return err;
 953 }
 954
 955 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
 956 {
 957         GSList *list;
 958         int err = -EINVAL;
 959
 960         if (global_offlinemode == offlinemode)
 961                 return 0;
 962
 963         DBG("offlinemode %s", offlinemode ? "On" : "Off");
 964
 965         /*
 966          * This is a bit tricky. When you set offlinemode, there is no
 967          * way to differentiate between attempting offline mode and
 968          * resuming offlinemode from last saved profile. We need that
 969          * information in rfkill_update, otherwise it falls back on the
 970          * technology's persistent state. Hence we set the offline mode here
 971          * but save it & call the notifier only if its successful.
 972          */
 973
 974         global_offlinemode = offlinemode;
 975
 976         /* Traverse technology list, enable/disable each technology. */
 977         for (list = technology_list; list; list = list->next) {
 978                 struct connman_technology *technology = list->data;
 979
 980                 if (offlinemode)
 981                         err = __connman_technology_disable(technology->type, NULL);
 982
 983                 if (!offlinemode && technology->enable_persistent)
 984                         err = __connman_technology_enable(technology->type, NULL);
 985         }
 986
 987         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
 988                 connman_technology_save_offlinemode();
 989                 __connman_notifier_offlinemode(offlinemode);
 990         } else
 991                 global_offlinemode = connman_technology_load_offlinemode();
 992
 993         return err;
 994 }
 995
 996 int __connman_technology_add_rfkill(unsigned int index,
 997                                         enum connman_service_type type,
 998                                                 connman_bool_t softblock,
 999                                                 connman_bool_t hardblock)
1000 {
1001         struct connman_technology *technology;
1002         struct connman_rfkill *rfkill;
1003
1004         DBG("index %u type %d soft %u hard %u", index, type,
1005                                                         softblock, hardblock);
1006
1007         technology = technology_get(type);
1008         if (technology == NULL)
1009                 return -ENXIO;
1010
1011         rfkill = g_try_new0(struct connman_rfkill, 1);
1012         if (rfkill == NULL)
1013                 return -ENOMEM;
1014
1015         rfkill->index = index;
1016         rfkill->type = type;
1017         rfkill->softblock = softblock;
1018         rfkill->hardblock = hardblock;
1019
1020         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
1021
1022         if (hardblock) {
1023                 DBG("%s is switched off.", get_name(type));
1024                 return 0;
1025         }
1026
1027         /*
1028          * If Offline mode is on, we softblock the device if it isnt already.
1029          * If Offline mode is off, we rely on the persistent state of tech.
1030          */
1031         if (global_offlinemode) {
1032                 if (!softblock)
1033                         return __connman_rfkill_block(type, TRUE);
1034         } else {
1035                 if (technology->enable_persistent && softblock)
1036                         return __connman_rfkill_block(type, FALSE);
1037                 /* if technology persistent state is offline */
1038                 if (!technology->enable_persistent && !softblock)
1039                         return __connman_rfkill_block(type, TRUE);
1040         }
1041
1042         return 0;
1043 }
1044
1045 int __connman_technology_update_rfkill(unsigned int index,
1046                                         enum connman_service_type type,
1047                                                 connman_bool_t softblock,
1048                                                 connman_bool_t hardblock)
1049 {
1050         struct connman_technology *technology;
1051         struct connman_rfkill *rfkill;
1052
1053         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1054
1055         technology = technology_find(type);
1056         if (technology == NULL)
1057                 return -ENXIO;
1058
1059         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1060         if (rfkill == NULL)
1061                 return -ENXIO;
1062
1063         if (rfkill->softblock == softblock &&
1064                 rfkill->hardblock == hardblock)
1065                 return 0;
1066
1067         rfkill->softblock = softblock;
1068         rfkill->hardblock = hardblock;
1069
1070         if (hardblock) {
1071                 DBG("%s is switched off.", get_name(type));
1072                 return 0;
1073         }
1074
1075         if (!global_offlinemode) {
1076                 if (technology->enable_persistent && softblock)
1077                         return __connman_rfkill_block(type, FALSE);
1078                 if (!technology->enable_persistent && !softblock)
1079                         return __connman_rfkill_block(type, TRUE);
1080         }
1081
1082         return 0;
1083 }
1084
1085 int __connman_technology_remove_rfkill(unsigned int index,
1086                                         enum connman_service_type type)
1087 {
1088         struct connman_technology *technology;
1089         struct connman_rfkill *rfkill;
1090
1091         DBG("index %u", index);
1092
1093         technology = technology_find(type);
1094         if (technology == NULL)
1095                 return -ENXIO;
1096
1097         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1098         if (rfkill == NULL)
1099                 return -ENXIO;
1100
1101         g_hash_table_remove(technology->rfkill_list, &index);
1102
1103         technology_put(technology);
1104
1105         return 0;
1106 }
1107
1108 int __connman_technology_init(void)
1109 {
1110         DBG("");
1111
1112         connection = connman_dbus_get_connection();
1113
1114         global_offlinemode = connman_technology_load_offlinemode();
1115
1116         return 0;
1117 }
1118
1119 void __connman_technology_cleanup(void)
1120 {
1121         DBG("");
1122
1123         dbus_connection_unref(connection);
1124 }