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                                 connman_bool_t enabled)
 174 {
 175         const char *ident, *passphrase, *bridge;
 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         bridge = __connman_tethering_get_bridge();
 185         if (bridge == NULL)
 186                 return -EOPNOTSUPP;
 187
 188         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI &&
 189             (ident == NULL || passphrase == NULL))
 190                 return -EINVAL;
 191
 192         return technology->driver->set_tethering(technology, ident, passphrase,
 193                                                         bridge, enabled);
 194 }
 195
 196 void connman_technology_regdom_notify(struct connman_technology *technology,
 197                                                         const char *alpha2)
 198 {
 199         DBG("");
 200
 201         if (alpha2 == NULL)
 202                 connman_error("Failed to set regulatory domain");
 203         else
 204                 DBG("Regulatory domain set to %s", alpha2);
 205
 206         g_free(technology->regdom);
 207         technology->regdom = g_strdup(alpha2);
 208 }
 209
 210 int connman_technology_set_regdom(const char *alpha2)
 211 {
 212         GSList *list;
 213
 214         for (list = technology_list; list; list = list->next) {
 215                 struct connman_technology *technology = list->data;
 216
 217                 if (technology->driver == NULL)
 218                         continue;
 219
 220                 if (technology->driver->set_regdom)
 221                         technology->driver->set_regdom(technology, alpha2);
 222         }
 223
 224         return 0;
 225 }
 226
 227 static void free_rfkill(gpointer data)
 228 {
 229         struct connman_rfkill *rfkill = data;
 230
 231         g_free(rfkill);
 232 }
 233
 234 void __connman_technology_list(DBusMessageIter *iter, void *user_data)
 235 {
 236         GSList *list;
 237
 238         for (list = technology_list; list; list = list->next) {
 239                 struct connman_technology *technology = list->data;
 240
 241                 if (technology->path == NULL)
 242                         continue;
 243
 244                 dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH,
 245                                                         &technology->path);
 246         }
 247 }
 248
 249 static void technologies_changed(void)
 250 {
 251         connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 252                         CONNMAN_MANAGER_INTERFACE, "Technologies",
 253                         DBUS_TYPE_OBJECT_PATH, __connman_technology_list, NULL);
 254 }
 255
 256 static const char *state2string(enum connman_technology_state state)
 257 {
 258         switch (state) {
 259         case CONNMAN_TECHNOLOGY_STATE_UNKNOWN:
 260                 break;
 261         case CONNMAN_TECHNOLOGY_STATE_OFFLINE:
 262                 return "offline";
 263         case CONNMAN_TECHNOLOGY_STATE_ENABLED:
 264                 return "enabled";
 265         case CONNMAN_TECHNOLOGY_STATE_CONNECTED:
 266                 return "connected";
 267         }
 268
 269         return NULL;
 270 }
 271
 272 static void state_changed(struct connman_technology *technology)
 273 {
 274         const char *str;
 275
 276         str = state2string(technology->state);
 277         if (str == NULL)
 278                 return;
 279
 280         connman_dbus_property_changed_basic(technology->path,
 281                                 CONNMAN_TECHNOLOGY_INTERFACE, "State",
 282                                                 DBUS_TYPE_STRING, &str);
 283 }
 284
 285 static const char *get_name(enum connman_service_type type)
 286 {
 287         switch (type) {
 288         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 289         case CONNMAN_SERVICE_TYPE_SYSTEM:
 290         case CONNMAN_SERVICE_TYPE_GPS:
 291         case CONNMAN_SERVICE_TYPE_VPN:
 292         case CONNMAN_SERVICE_TYPE_GADGET:
 293                 break;
 294         case CONNMAN_SERVICE_TYPE_ETHERNET:
 295                 return "Wired";
 296         case CONNMAN_SERVICE_TYPE_WIFI:
 297                 return "WiFi";
 298         case CONNMAN_SERVICE_TYPE_WIMAX:
 299                 return "WiMAX";
 300         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 301                 return "Bluetooth";
 302         case CONNMAN_SERVICE_TYPE_CELLULAR:
 303                 return "3G";
 304         }
 305
 306         return NULL;
 307 }
 308
 309 static void load_state(struct connman_technology *technology)
 310 {
 311         GKeyFile *keyfile;
 312         gchar *identifier;
 313         GError *error = NULL;
 314         connman_bool_t enable;
 315
 316         DBG("technology %p", technology);
 317
 318         keyfile = __connman_storage_load_global();
 319         /* Fallback on disabling technology if file not found. */
 320         if (keyfile == NULL) {
 321                 technology->enable_persistent = FALSE;
 322                 return;
 323         }
 324
 325         identifier = g_strdup_printf("%s", get_name(technology->type));
 326         if (identifier == NULL)
 327                 goto done;
 328
 329         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 330         if (error == NULL)
 331                 technology->enable_persistent = enable;
 332         else {
 333                 technology->enable_persistent = FALSE;
 334                 g_clear_error(&error);
 335         }
 336 done:
 337         g_free(identifier);
 338
 339         g_key_file_free(keyfile);
 340
 341         return;
 342 }
 343
 344 static void save_state(struct connman_technology *technology)
 345 {
 346         GKeyFile *keyfile;
 347         gchar *identifier;
 348
 349         DBG("technology %p", technology);
 350
 351         keyfile = __connman_storage_load_global();
 352         if (keyfile == NULL)
 353                 keyfile = g_key_file_new();
 354
 355         identifier = g_strdup_printf("%s", get_name(technology->type));
 356         if (identifier == NULL)
 357                 goto done;
 358
 359         g_key_file_set_boolean(keyfile, identifier, "Enable",
 360                                 technology->enable_persistent);
 361
 362 done:
 363         g_free(identifier);
 364
 365         __connman_storage_save_global(keyfile);
 366
 367         g_key_file_free(keyfile);
 368
 369         return;
 370 }
 371
 372 connman_bool_t __connman_technology_get_offlinemode(void)
 373 {
 374         return global_offlinemode;
 375 }
 376
 377 static void connman_technology_save_offlinemode()
 378 {
 379         GKeyFile *keyfile;
 380
 381         keyfile = __connman_storage_load_global();
 382         if (keyfile == NULL)
 383                 keyfile = g_key_file_new();
 384
 385         g_key_file_set_boolean(keyfile, "global",
 386                                         "OfflineMode", global_offlinemode);
 387
 388         __connman_storage_save_global(keyfile);
 389
 390         g_key_file_free(keyfile);
 391
 392         return;
 393 }
 394
 395 static connman_bool_t connman_technology_load_offlinemode()
 396 {
 397         GKeyFile *keyfile;
 398         GError *error = NULL;
 399         connman_bool_t offlinemode;
 400
 401         /* If there is a error, we enable offlinemode */
 402         keyfile = __connman_storage_load_global();
 403         if (keyfile == NULL)
 404                 return TRUE;
 405
 406         offlinemode = g_key_file_get_boolean(keyfile, "global",
 407                                                 "OfflineMode", &error);
 408         if (error != NULL) {
 409                 offlinemode = TRUE;
 410                 g_clear_error(&error);
 411         }
 412
 413         g_key_file_free(keyfile);
 414
 415         return offlinemode;
 416 }
 417
 418 static DBusMessage *get_properties(DBusConnection *conn,
 419                                         DBusMessage *message, void *user_data)
 420 {
 421         struct connman_technology *technology = user_data;
 422         DBusMessage *reply;
 423         DBusMessageIter array, dict;
 424         const char *str;
 425
 426         reply = dbus_message_new_method_return(message);
 427         if (reply == NULL)
 428                 return NULL;
 429
 430         dbus_message_iter_init_append(reply, &array);
 431
 432         connman_dbus_dict_open(&array, &dict);
 433
 434         str = state2string(technology->state);
 435         if (str != NULL)
 436                 connman_dbus_dict_append_basic(&dict, "State",
 437                                                 DBUS_TYPE_STRING, &str);
 438
 439         str = get_name(technology->type);
 440         if (str != NULL)
 441                 connman_dbus_dict_append_basic(&dict, "Name",
 442                                                 DBUS_TYPE_STRING, &str);
 443
 444         str = __connman_service_type2string(technology->type);
 445         if (str != NULL)
 446                 connman_dbus_dict_append_basic(&dict, "Type",
 447                                                 DBUS_TYPE_STRING, &str);
 448
 449         connman_dbus_dict_append_basic(&dict, "Tethering",
 450                                         DBUS_TYPE_BOOLEAN,
 451                                         &technology->tethering);
 452
 453         if (technology->tethering_ident != NULL)
 454                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 455                                                 DBUS_TYPE_STRING,
 456                                                 &technology->tethering_ident);
 457
 458         if (technology->tethering_passphrase != NULL)
 459                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 460                                                 DBUS_TYPE_STRING,
 461                                                 &technology->tethering_passphrase);
 462
 463         connman_dbus_dict_close(&array, &dict);
 464
 465         return reply;
 466 }
 467
 468 static DBusMessage *set_property(DBusConnection *conn,
 469                                         DBusMessage *msg, void *data)
 470 {
 471         struct connman_technology *technology = data;
 472         DBusMessageIter iter, value;
 473         const char *name;
 474         int type;
 475
 476         DBG("conn %p", conn);
 477
 478         if (dbus_message_iter_init(msg, &iter) == FALSE)
 479                 return __connman_error_invalid_arguments(msg);
 480
 481         dbus_message_iter_get_basic(&iter, &name);
 482         dbus_message_iter_next(&iter);
 483         dbus_message_iter_recurse(&iter, &value);
 484
 485         type = dbus_message_iter_get_arg_type(&value);
 486
 487         DBG("property %s", name);
 488
 489         if (g_str_equal(name, "Tethering") == TRUE) {
 490                 int err;
 491                 connman_bool_t tethering;
 492
 493                 if (type != DBUS_TYPE_BOOLEAN)
 494                         return __connman_error_invalid_arguments(msg);
 495
 496                 dbus_message_iter_get_basic(&value, &tethering);
 497
 498                 if (technology->tethering == tethering)
 499                         return __connman_error_in_progress(msg);
 500
 501                 err = set_tethering(technology, tethering);
 502                 if (err < 0)
 503                         return __connman_error_failed(msg, -err);
 504
 505         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 506                 const char *str;
 507
 508                 dbus_message_iter_get_basic(&value, &str);
 509
 510                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 511                         return __connman_error_not_supported(msg);
 512
 513                 technology->tethering_ident = g_strdup(str);
 514         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 515                 const char *str;
 516
 517                 dbus_message_iter_get_basic(&value, &str);
 518
 519                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 520                         return __connman_error_not_supported(msg);
 521
 522                 if (strlen(str) < 8)
 523                         return __connman_error_invalid_arguments(msg);
 524
 525                 technology->tethering_passphrase = g_strdup(str);
 526         } else
 527                 return __connman_error_invalid_property(msg);
 528
 529         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 530 }
 531
 532 static GDBusMethodTable technology_methods[] = {
 533         { "GetProperties", "",   "a{sv}", get_properties },
 534         { "SetProperty",   "sv", "",      set_property   },
 535         { },
 536 };
 537
 538 static GDBusSignalTable technology_signals[] = {
 539         { "PropertyChanged", "sv" },
 540         { },
 541 };
 542
 543 static struct connman_technology *technology_find(enum connman_service_type type)
 544 {
 545         GSList *list;
 546
 547         DBG("type %d", type);
 548
 549         for (list = technology_list; list; list = list->next) {
 550                 struct connman_technology *technology = list->data;
 551
 552                 if (technology->type == type)
 553                         return technology;
 554         }
 555
 556         return NULL;
 557 }
 558
 559 static struct connman_technology *technology_get(enum connman_service_type type)
 560 {
 561         struct connman_technology *technology;
 562         const char *str;
 563         GSList *list;
 564
 565         DBG("type %d", type);
 566
 567         technology = technology_find(type);
 568         if (technology != NULL) {
 569                 g_atomic_int_inc(&technology->refcount);
 570                 goto done;
 571         }
 572
 573         str = __connman_service_type2string(type);
 574         if (str == NULL)
 575                 return NULL;
 576
 577         technology = g_try_new0(struct connman_technology, 1);
 578         if (technology == NULL)
 579                 return NULL;
 580
 581         technology->refcount = 1;
 582
 583         technology->type = type;
 584         technology->path = g_strdup_printf("%s/technology/%s",
 585                                                         CONNMAN_PATH, str);
 586
 587         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 588                                                         NULL, free_rfkill);
 589         technology->device_list = NULL;
 590
 591         technology->pending_reply = NULL;
 592         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 593
 594         load_state(technology);
 595
 596         if (g_dbus_register_interface(connection, technology->path,
 597                                         CONNMAN_TECHNOLOGY_INTERFACE,
 598                                         technology_methods, technology_signals,
 599                                         NULL, technology, NULL) == FALSE) {
 600                 connman_error("Failed to register %s", technology->path);
 601                 g_free(technology);
 602                 return NULL;
 603         }
 604
 605         technology_list = g_slist_append(technology_list, technology);
 606
 607         technologies_changed();
 608
 609         if (technology->driver != NULL)
 610                 goto done;
 611
 612         for (list = driver_list; list; list = list->next) {
 613                 struct connman_technology_driver *driver = list->data;
 614
 615                 DBG("driver %p name %s", driver, driver->name);
 616
 617                 if (driver->type != technology->type)
 618                         continue;
 619
 620                 if (driver->probe(technology) == 0) {
 621                         technology->driver = driver;
 622                         break;
 623                 }
 624         }
 625
 626 done:
 627         DBG("technology %p", technology);
 628
 629         return technology;
 630 }
 631
 632 static void technology_put(struct connman_technology *technology)
 633 {
 634         DBG("technology %p", technology);
 635
 636         if (g_atomic_int_dec_and_test(&technology->refcount) == FALSE)
 637                 return;
 638
 639         if (technology->driver) {
 640                 technology->driver->remove(technology);
 641                 technology->driver = NULL;
 642         }
 643
 644         technology_list = g_slist_remove(technology_list, technology);
 645
 646         technologies_changed();
 647
 648         g_dbus_unregister_interface(connection, technology->path,
 649                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 650
 651         g_slist_free(technology->device_list);
 652         g_hash_table_destroy(technology->rfkill_list);
 653
 654         g_free(technology->path);
 655         g_free(technology->regdom);
 656         g_free(technology);
 657 }
 658
 659 void __connman_technology_add_interface(enum connman_service_type type,
 660                                 int index, const char *name, const char *ident)
 661 {
 662         struct connman_technology *technology;
 663
 664         switch (type) {
 665         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 666         case CONNMAN_SERVICE_TYPE_SYSTEM:
 667                 return;
 668         case CONNMAN_SERVICE_TYPE_ETHERNET:
 669         case CONNMAN_SERVICE_TYPE_WIFI:
 670         case CONNMAN_SERVICE_TYPE_WIMAX:
 671         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 672         case CONNMAN_SERVICE_TYPE_CELLULAR:
 673         case CONNMAN_SERVICE_TYPE_GPS:
 674         case CONNMAN_SERVICE_TYPE_VPN:
 675         case CONNMAN_SERVICE_TYPE_GADGET:
 676                 break;
 677         }
 678
 679         connman_info("Create interface %s [ %s ]", name,
 680                                 __connman_service_type2string(type));
 681
 682         technology = technology_get(type);
 683
 684         if (technology == NULL || technology->driver == NULL
 685                         || technology->driver->add_interface == NULL)
 686                 return;
 687
 688         technology->driver->add_interface(technology,
 689                                         index, name, ident);
 690 }
 691
 692 void __connman_technology_remove_interface(enum connman_service_type type,
 693                                 int index, const char *name, const char *ident)
 694 {
 695         struct connman_technology *technology;
 696
 697         switch (type) {
 698         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 699         case CONNMAN_SERVICE_TYPE_SYSTEM:
 700                 return;
 701         case CONNMAN_SERVICE_TYPE_ETHERNET:
 702         case CONNMAN_SERVICE_TYPE_WIFI:
 703         case CONNMAN_SERVICE_TYPE_WIMAX:
 704         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 705         case CONNMAN_SERVICE_TYPE_CELLULAR:
 706         case CONNMAN_SERVICE_TYPE_GPS:
 707         case CONNMAN_SERVICE_TYPE_VPN:
 708         case CONNMAN_SERVICE_TYPE_GADGET:
 709                 break;
 710         }
 711
 712         connman_info("Remove interface %s [ %s ]", name,
 713                                 __connman_service_type2string(type));
 714
 715         technology = technology_find(type);
 716
 717         if (technology == NULL || technology->driver == NULL)
 718                 return;
 719
 720         if (technology->driver->remove_interface)
 721                 technology->driver->remove_interface(technology, index);
 722
 723         technology_put(technology);
 724 }
 725
 726 int __connman_technology_add_device(struct connman_device *device)
 727 {
 728         struct connman_technology *technology;
 729         enum connman_service_type type;
 730
 731         DBG("device %p", device);
 732
 733         type = __connman_device_get_service_type(device);
 734         __connman_notifier_register(type);
 735
 736         technology = technology_get(type);
 737         if (technology == NULL)
 738                 return -ENXIO;
 739
 740         if (technology->enable_persistent && !global_offlinemode)
 741                 __connman_device_enable(device);
 742         /* if technology persistent state is offline */
 743         if (!technology->enable_persistent)
 744                 __connman_device_disable(device);
 745
 746         technology->device_list = g_slist_append(technology->device_list,
 747                                                                 device);
 748
 749         return 0;
 750 }
 751
 752 int __connman_technology_remove_device(struct connman_device *device)
 753 {
 754         struct connman_technology *technology;
 755         enum connman_service_type type;
 756
 757         DBG("device %p", device);
 758
 759         type = __connman_device_get_service_type(device);
 760         __connman_notifier_unregister(type);
 761
 762         technology = technology_find(type);
 763         if (technology == NULL)
 764                 return -ENXIO;
 765
 766         technology->device_list = g_slist_remove(technology->device_list,
 767                                                                 device);
 768         if (technology->device_list == NULL) {
 769                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 770                 state_changed(technology);
 771         }
 772
 773         return 0;
 774 }
 775
 776 static gboolean technology_pending_reply(gpointer user_data)
 777 {
 778         struct connman_technology *technology = user_data;
 779         DBusMessage *reply;
 780
 781         /* Power request timedout, send ETIMEDOUT. */
 782         if (technology->pending_reply != NULL) {
 783                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 784                 if (reply != NULL)
 785                         g_dbus_send_message(connection, reply);
 786
 787                 dbus_message_unref(technology->pending_reply);
 788                 technology->pending_reply = NULL;
 789                 technology->pending_timeout = 0;
 790         }
 791
 792         return FALSE;
 793 }
 794
 795 int __connman_technology_enabled(enum connman_service_type type)
 796 {
 797         struct connman_technology *technology;
 798
 799         technology = technology_find(type);
 800         if (technology == NULL)
 801                 return -ENXIO;
 802
 803         if (g_atomic_int_exchange_and_add(&technology->enabled, 1) == 0) {
 804                 __connman_notifier_enable(type);
 805                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 806                 state_changed(technology);
 807         }
 808
 809         if (technology->pending_reply != NULL) {
 810                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 811                 dbus_message_unref(technology->pending_reply);
 812                 technology->pending_reply = NULL;
 813                 technology->pending_timeout = 0;
 814         }
 815
 816         return 0;
 817 }
 818
 819 int __connman_technology_enable(enum connman_service_type type, DBusMessage *msg)
 820 {
 821         struct connman_technology *technology;
 822         GSList *list;
 823         int err = 0;
 824         int ret = -ENODEV;
 825         DBusMessage *reply;
 826
 827         DBG("type %d enable", type);
 828
 829         technology = technology_find(type);
 830         if (technology == NULL) {
 831                 err = -ENXIO;
 832                 goto done;
 833         }
 834
 835         if (technology->pending_reply != NULL) {
 836                 err = -EBUSY;
 837                 goto done;
 838         }
 839
 840         if (msg != NULL) {
 841                 technology->pending_reply = dbus_message_ref(msg);
 842                 /*
 843                  * This is a bit of a trick. When msg is not NULL it means
 844                  * thats technology_enable was invoked from the manager API. Hence we save
 845                  * the state here.
 846                  */
 847                 technology->enable_persistent = TRUE;
 848                 save_state(technology);
 849         }
 850
 851         __connman_rfkill_block(technology->type, FALSE);
 852
 853         for (list = technology->device_list; list; list = list->next) {
 854                 struct connman_device *device = list->data;
 855
 856                 err = __connman_device_enable(device);
 857                 /*
 858                  * err = 0 : Device was enabled right away.
 859                  * If atleast one device gets enabled, we consider
 860                  * the technology to be enabled.
 861                  */
 862                 if (err == 0)
 863                         ret = 0;
 864         }
 865
 866 done:
 867         if (ret == 0)
 868                 return ret;
 869
 870         if (msg != NULL) {
 871                 if (err == -EINPROGRESS)
 872                         technology->pending_timeout = g_timeout_add_seconds(10,
 873                                         technology_pending_reply, technology);
 874                 else {
 875                         reply = __connman_error_failed(msg, -err);
 876                         if (reply != NULL)
 877                                 g_dbus_send_message(connection, reply);
 878                 }
 879         }
 880
 881         return err;
 882 }
 883
 884 int __connman_technology_disabled(enum connman_service_type type)
 885 {
 886         struct connman_technology *technology;
 887
 888         technology = technology_find(type);
 889         if (technology == NULL)
 890                 return -ENXIO;
 891
 892         if (technology->pending_reply != NULL) {
 893                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 894                 dbus_message_unref(technology->pending_reply);
 895                 technology->pending_reply = NULL;
 896         }
 897
 898         if (g_atomic_int_dec_and_test(&technology->enabled) == TRUE) {
 899                 __connman_notifier_disable(type);
 900                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 901                 state_changed(technology);
 902         }
 903
 904         return 0;
 905 }
 906
 907 int __connman_technology_disable(enum connman_service_type type, DBusMessage *msg)
 908 {
 909         struct connman_technology *technology;
 910         GSList *list;
 911         int err = 0;
 912         int ret = -ENODEV;
 913         DBusMessage *reply;
 914
 915         DBG("type %d disable", type);
 916
 917         technology = technology_find(type);
 918         if (technology == NULL) {
 919                 err = -ENXIO;
 920                 goto done;
 921         }
 922
 923         if (technology->pending_reply != NULL) {
 924                 err = -EBUSY;
 925                 goto done;
 926         }
 927
 928         if (technology->tethering == TRUE)
 929                 set_tethering(technology, FALSE);
 930
 931         if (msg != NULL) {
 932                 technology->pending_reply = dbus_message_ref(msg);
 933                 technology->enable_persistent = FALSE;
 934                 save_state(technology);
 935         }
 936
 937         __connman_rfkill_block(technology->type, TRUE);
 938
 939         for (list = technology->device_list; list; list = list->next) {
 940                 struct connman_device *device = list->data;
 941
 942                 err = __connman_device_disable(device);
 943                 if (err == 0)
 944                         ret = 0;
 945         }
 946
 947 done:
 948         if (ret == 0)
 949                 return ret;
 950
 951         if (msg != NULL) {
 952                 if (err == -EINPROGRESS)
 953                         technology->pending_timeout = g_timeout_add_seconds(10,
 954                                         technology_pending_reply, technology);
 955                 else {
 956                         reply = __connman_error_failed(msg, -err);
 957                         if (reply != NULL)
 958                                 g_dbus_send_message(connection, reply);
 959                 }
 960         }
 961
 962         return err;
 963 }
 964
 965 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
 966 {
 967         GSList *list;
 968         int err = -EINVAL;
 969
 970         if (global_offlinemode == offlinemode)
 971                 return 0;
 972
 973         DBG("offlinemode %s", offlinemode ? "On" : "Off");
 974
 975         /*
 976          * This is a bit tricky. When you set offlinemode, there is no
 977          * way to differentiate between attempting offline mode and
 978          * resuming offlinemode from last saved profile. We need that
 979          * information in rfkill_update, otherwise it falls back on the
 980          * technology's persistent state. Hence we set the offline mode here
 981          * but save it & call the notifier only if its successful.
 982          */
 983
 984         global_offlinemode = offlinemode;
 985
 986         /* Traverse technology list, enable/disable each technology. */
 987         for (list = technology_list; list; list = list->next) {
 988                 struct connman_technology *technology = list->data;
 989
 990                 if (offlinemode)
 991                         err = __connman_technology_disable(technology->type, NULL);
 992
 993                 if (!offlinemode && technology->enable_persistent)
 994                         err = __connman_technology_enable(technology->type, NULL);
 995         }
 996
 997         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
 998                 connman_technology_save_offlinemode();
 999                 __connman_notifier_offlinemode(offlinemode);
1000         } else
1001                 global_offlinemode = connman_technology_load_offlinemode();
1002
1003         return err;
1004 }
1005
1006 int __connman_technology_add_rfkill(unsigned int index,
1007                                         enum connman_service_type type,
1008                                                 connman_bool_t softblock,
1009                                                 connman_bool_t hardblock)
1010 {
1011         struct connman_technology *technology;
1012         struct connman_rfkill *rfkill;
1013
1014         DBG("index %u type %d soft %u hard %u", index, type,
1015                                                         softblock, hardblock);
1016
1017         technology = technology_get(type);
1018         if (technology == NULL)
1019                 return -ENXIO;
1020
1021         rfkill = g_try_new0(struct connman_rfkill, 1);
1022         if (rfkill == NULL)
1023                 return -ENOMEM;
1024
1025         rfkill->index = index;
1026         rfkill->type = type;
1027         rfkill->softblock = softblock;
1028         rfkill->hardblock = hardblock;
1029
1030         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
1031
1032         if (hardblock) {
1033                 DBG("%s is switched off.", get_name(type));
1034                 return 0;
1035         }
1036
1037         /*
1038          * If Offline mode is on, we softblock the device if it isnt already.
1039          * If Offline mode is off, we rely on the persistent state of tech.
1040          */
1041         if (global_offlinemode) {
1042                 if (!softblock)
1043                         return __connman_rfkill_block(type, TRUE);
1044         } else {
1045                 if (technology->enable_persistent && softblock)
1046                         return __connman_rfkill_block(type, FALSE);
1047                 /* if technology persistent state is offline */
1048                 if (!technology->enable_persistent && !softblock)
1049                         return __connman_rfkill_block(type, TRUE);
1050         }
1051
1052         return 0;
1053 }
1054
1055 int __connman_technology_update_rfkill(unsigned int index,
1056                                         enum connman_service_type type,
1057                                                 connman_bool_t softblock,
1058                                                 connman_bool_t hardblock)
1059 {
1060         struct connman_technology *technology;
1061         struct connman_rfkill *rfkill;
1062
1063         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1064
1065         technology = technology_find(type);
1066         if (technology == NULL)
1067                 return -ENXIO;
1068
1069         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1070         if (rfkill == NULL)
1071                 return -ENXIO;
1072
1073         if (rfkill->softblock == softblock &&
1074                 rfkill->hardblock == hardblock)
1075                 return 0;
1076
1077         rfkill->softblock = softblock;
1078         rfkill->hardblock = hardblock;
1079
1080         if (hardblock) {
1081                 DBG("%s is switched off.", get_name(type));
1082                 return 0;
1083         }
1084
1085         if (!global_offlinemode) {
1086                 if (technology->enable_persistent && softblock)
1087                         return __connman_rfkill_block(type, FALSE);
1088                 if (!technology->enable_persistent && !softblock)
1089                         return __connman_rfkill_block(type, TRUE);
1090         }
1091
1092         return 0;
1093 }
1094
1095 int __connman_technology_remove_rfkill(unsigned int index,
1096                                         enum connman_service_type type)
1097 {
1098         struct connman_technology *technology;
1099         struct connman_rfkill *rfkill;
1100
1101         DBG("index %u", index);
1102
1103         technology = technology_find(type);
1104         if (technology == NULL)
1105                 return -ENXIO;
1106
1107         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1108         if (rfkill == NULL)
1109                 return -ENXIO;
1110
1111         g_hash_table_remove(technology->rfkill_list, &index);
1112
1113         technology_put(technology);
1114
1115         return 0;
1116 }
1117
1118 int __connman_technology_init(void)
1119 {
1120         DBG("");
1121
1122         connection = connman_dbus_get_connection();
1123
1124         global_offlinemode = connman_technology_load_offlinemode();
1125
1126         return 0;
1127 }
1128
1129 void __connman_technology_cleanup(void)
1130 {
1131         DBG("");
1132
1133         dbus_connection_unref(connection);
1134 }