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         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         GSList *list;
 158
 159         DBG("technology %p enabled %u", technology, enabled);
 160
 161         if (technology->tethering == enabled)
 162                 return;
 163
 164         technology->tethering = enabled;
 165
 166         tethering_changed(technology);
 167
 168         if (enabled == TRUE)
 169                 __connman_tethering_set_enabled();
 170         else {
 171                 for (list = technology_list; list; list = list->next) {
 172                         struct connman_technology *other_tech = list->data;
 173                         if (other_tech->tethering == TRUE)
 174                                 break;
 175                 }
 176                 if (list == NULL)
 177                         __connman_tethering_set_disabled();
 178         }
 179 }
 180
 181 static int set_tethering(struct connman_technology *technology,
 182                                 connman_bool_t enabled)
 183 {
 184         const char *ident, *passphrase, *bridge;
 185
 186         ident = technology->tethering_ident;
 187         passphrase = technology->tethering_passphrase;
 188
 189         if (technology->driver == NULL ||
 190                         technology->driver->set_tethering == NULL)
 191                 return -EOPNOTSUPP;
 192
 193         bridge = __connman_tethering_get_bridge();
 194         if (bridge == NULL)
 195                 return -EOPNOTSUPP;
 196
 197         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI &&
 198             (ident == NULL || passphrase == NULL))
 199                 return -EINVAL;
 200
 201         return technology->driver->set_tethering(technology, ident, passphrase,
 202                                                         bridge, enabled);
 203 }
 204
 205 void connman_technology_regdom_notify(struct connman_technology *technology,
 206                                                         const char *alpha2)
 207 {
 208         DBG("");
 209
 210         if (alpha2 == NULL)
 211                 connman_error("Failed to set regulatory domain");
 212         else
 213                 DBG("Regulatory domain set to %s", alpha2);
 214
 215         g_free(technology->regdom);
 216         technology->regdom = g_strdup(alpha2);
 217 }
 218
 219 int connman_technology_set_regdom(const char *alpha2)
 220 {
 221         GSList *list;
 222
 223         for (list = technology_list; list; list = list->next) {
 224                 struct connman_technology *technology = list->data;
 225
 226                 if (technology->driver == NULL)
 227                         continue;
 228
 229                 if (technology->driver->set_regdom)
 230                         technology->driver->set_regdom(technology, alpha2);
 231         }
 232
 233         return 0;
 234 }
 235
 236 static void free_rfkill(gpointer data)
 237 {
 238         struct connman_rfkill *rfkill = data;
 239
 240         g_free(rfkill);
 241 }
 242
 243 void __connman_technology_list(DBusMessageIter *iter, void *user_data)
 244 {
 245         GSList *list;
 246
 247         for (list = technology_list; list; list = list->next) {
 248                 struct connman_technology *technology = list->data;
 249
 250                 if (technology->path == NULL)
 251                         continue;
 252
 253                 dbus_message_iter_append_basic(iter, DBUS_TYPE_OBJECT_PATH,
 254                                                         &technology->path);
 255         }
 256 }
 257
 258 static void technologies_changed(void)
 259 {
 260         connman_dbus_property_changed_array(CONNMAN_MANAGER_PATH,
 261                         CONNMAN_MANAGER_INTERFACE, "Technologies",
 262                         DBUS_TYPE_OBJECT_PATH, __connman_technology_list, NULL);
 263 }
 264
 265 static const char *state2string(enum connman_technology_state state)
 266 {
 267         switch (state) {
 268         case CONNMAN_TECHNOLOGY_STATE_UNKNOWN:
 269                 break;
 270         case CONNMAN_TECHNOLOGY_STATE_OFFLINE:
 271                 return "offline";
 272         case CONNMAN_TECHNOLOGY_STATE_ENABLED:
 273                 return "enabled";
 274         case CONNMAN_TECHNOLOGY_STATE_CONNECTED:
 275                 return "connected";
 276         }
 277
 278         return NULL;
 279 }
 280
 281 static void state_changed(struct connman_technology *technology)
 282 {
 283         const char *str;
 284
 285         str = state2string(technology->state);
 286         if (str == NULL)
 287                 return;
 288
 289         connman_dbus_property_changed_basic(technology->path,
 290                                 CONNMAN_TECHNOLOGY_INTERFACE, "State",
 291                                                 DBUS_TYPE_STRING, &str);
 292 }
 293
 294 static const char *get_name(enum connman_service_type type)
 295 {
 296         switch (type) {
 297         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 298         case CONNMAN_SERVICE_TYPE_SYSTEM:
 299         case CONNMAN_SERVICE_TYPE_GPS:
 300         case CONNMAN_SERVICE_TYPE_VPN:
 301         case CONNMAN_SERVICE_TYPE_GADGET:
 302                 break;
 303         case CONNMAN_SERVICE_TYPE_ETHERNET:
 304                 return "Wired";
 305         case CONNMAN_SERVICE_TYPE_WIFI:
 306                 return "WiFi";
 307         case CONNMAN_SERVICE_TYPE_WIMAX:
 308                 return "WiMAX";
 309         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 310                 return "Bluetooth";
 311         case CONNMAN_SERVICE_TYPE_CELLULAR:
 312                 return "Cellular";
 313         }
 314
 315         return NULL;
 316 }
 317
 318 static void load_state(struct connman_technology *technology)
 319 {
 320         GKeyFile *keyfile;
 321         gchar *identifier;
 322         GError *error = NULL;
 323         connman_bool_t enable;
 324
 325         DBG("technology %p", technology);
 326
 327         keyfile = __connman_storage_load_global();
 328         /* Fallback on disabling technology if file not found. */
 329         if (keyfile == NULL) {
 330                 technology->enable_persistent = FALSE;
 331                 return;
 332         }
 333
 334         identifier = g_strdup_printf("%s", get_name(technology->type));
 335         if (identifier == NULL)
 336                 goto done;
 337
 338         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 339         if (error == NULL)
 340                 technology->enable_persistent = enable;
 341         else {
 342                 technology->enable_persistent = FALSE;
 343                 g_clear_error(&error);
 344         }
 345 done:
 346         g_free(identifier);
 347
 348         g_key_file_free(keyfile);
 349
 350         return;
 351 }
 352
 353 static void save_state(struct connman_technology *technology)
 354 {
 355         GKeyFile *keyfile;
 356         gchar *identifier;
 357
 358         DBG("technology %p", technology);
 359
 360         keyfile = __connman_storage_load_global();
 361         if (keyfile == NULL)
 362                 keyfile = g_key_file_new();
 363
 364         identifier = g_strdup_printf("%s", get_name(technology->type));
 365         if (identifier == NULL)
 366                 goto done;
 367
 368         g_key_file_set_boolean(keyfile, identifier, "Enable",
 369                                 technology->enable_persistent);
 370
 371 done:
 372         g_free(identifier);
 373
 374         __connman_storage_save_global(keyfile);
 375
 376         g_key_file_free(keyfile);
 377
 378         return;
 379 }
 380
 381 connman_bool_t __connman_technology_get_offlinemode(void)
 382 {
 383         return global_offlinemode;
 384 }
 385
 386 static void connman_technology_save_offlinemode()
 387 {
 388         GKeyFile *keyfile;
 389
 390         keyfile = __connman_storage_load_global();
 391         if (keyfile == NULL)
 392                 keyfile = g_key_file_new();
 393
 394         g_key_file_set_boolean(keyfile, "global",
 395                                         "OfflineMode", global_offlinemode);
 396
 397         __connman_storage_save_global(keyfile);
 398
 399         g_key_file_free(keyfile);
 400
 401         return;
 402 }
 403
 404 static connman_bool_t connman_technology_load_offlinemode()
 405 {
 406         GKeyFile *keyfile;
 407         GError *error = NULL;
 408         connman_bool_t offlinemode;
 409
 410         /* If there is a error, we enable offlinemode */
 411         keyfile = __connman_storage_load_global();
 412         if (keyfile == NULL)
 413                 return TRUE;
 414
 415         offlinemode = g_key_file_get_boolean(keyfile, "global",
 416                                                 "OfflineMode", &error);
 417         if (error != NULL) {
 418                 offlinemode = TRUE;
 419                 g_clear_error(&error);
 420         }
 421
 422         g_key_file_free(keyfile);
 423
 424         return offlinemode;
 425 }
 426
 427 static DBusMessage *get_properties(DBusConnection *conn,
 428                                         DBusMessage *message, void *user_data)
 429 {
 430         struct connman_technology *technology = user_data;
 431         DBusMessage *reply;
 432         DBusMessageIter array, dict;
 433         const char *str;
 434
 435         reply = dbus_message_new_method_return(message);
 436         if (reply == NULL)
 437                 return NULL;
 438
 439         dbus_message_iter_init_append(reply, &array);
 440
 441         connman_dbus_dict_open(&array, &dict);
 442
 443         str = state2string(technology->state);
 444         if (str != NULL)
 445                 connman_dbus_dict_append_basic(&dict, "State",
 446                                                 DBUS_TYPE_STRING, &str);
 447
 448         str = get_name(technology->type);
 449         if (str != NULL)
 450                 connman_dbus_dict_append_basic(&dict, "Name",
 451                                                 DBUS_TYPE_STRING, &str);
 452
 453         str = __connman_service_type2string(technology->type);
 454         if (str != NULL)
 455                 connman_dbus_dict_append_basic(&dict, "Type",
 456                                                 DBUS_TYPE_STRING, &str);
 457
 458         connman_dbus_dict_append_basic(&dict, "Tethering",
 459                                         DBUS_TYPE_BOOLEAN,
 460                                         &technology->tethering);
 461
 462         if (technology->tethering_ident != NULL)
 463                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 464                                                 DBUS_TYPE_STRING,
 465                                                 &technology->tethering_ident);
 466
 467         if (technology->tethering_passphrase != NULL)
 468                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 469                                                 DBUS_TYPE_STRING,
 470                                                 &technology->tethering_passphrase);
 471
 472         connman_dbus_dict_close(&array, &dict);
 473
 474         return reply;
 475 }
 476
 477 static DBusMessage *set_property(DBusConnection *conn,
 478                                         DBusMessage *msg, void *data)
 479 {
 480         struct connman_technology *technology = data;
 481         DBusMessageIter iter, value;
 482         const char *name;
 483         int type;
 484
 485         DBG("conn %p", conn);
 486
 487         if (dbus_message_iter_init(msg, &iter) == FALSE)
 488                 return __connman_error_invalid_arguments(msg);
 489
 490         dbus_message_iter_get_basic(&iter, &name);
 491         dbus_message_iter_next(&iter);
 492         dbus_message_iter_recurse(&iter, &value);
 493
 494         type = dbus_message_iter_get_arg_type(&value);
 495
 496         DBG("property %s", name);
 497
 498         if (g_str_equal(name, "Tethering") == TRUE) {
 499                 int err;
 500                 connman_bool_t tethering;
 501
 502                 if (type != DBUS_TYPE_BOOLEAN)
 503                         return __connman_error_invalid_arguments(msg);
 504
 505                 dbus_message_iter_get_basic(&value, &tethering);
 506
 507                 if (technology->tethering == tethering)
 508                         return __connman_error_in_progress(msg);
 509
 510                 err = set_tethering(technology, tethering);
 511                 if (err < 0)
 512                         return __connman_error_failed(msg, -err);
 513
 514         } else if (g_str_equal(name, "TetheringIdentifier") == 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                 technology->tethering_ident = g_strdup(str);
 523         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 524                 const char *str;
 525
 526                 dbus_message_iter_get_basic(&value, &str);
 527
 528                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 529                         return __connman_error_not_supported(msg);
 530
 531                 if (strlen(str) < 8)
 532                         return __connman_error_invalid_arguments(msg);
 533
 534                 technology->tethering_passphrase = g_strdup(str);
 535         } else
 536                 return __connman_error_invalid_property(msg);
 537
 538         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 539 }
 540
 541 static GDBusMethodTable technology_methods[] = {
 542         { "GetProperties", "",   "a{sv}", get_properties },
 543         { "SetProperty",   "sv", "",      set_property   },
 544         { },
 545 };
 546
 547 static GDBusSignalTable technology_signals[] = {
 548         { "PropertyChanged", "sv" },
 549         { },
 550 };
 551
 552 static struct connman_technology *technology_find(enum connman_service_type type)
 553 {
 554         GSList *list;
 555
 556         DBG("type %d", type);
 557
 558         for (list = technology_list; list; list = list->next) {
 559                 struct connman_technology *technology = list->data;
 560
 561                 if (technology->type == type)
 562                         return technology;
 563         }
 564
 565         return NULL;
 566 }
 567
 568 static struct connman_technology *technology_get(enum connman_service_type type)
 569 {
 570         struct connman_technology *technology;
 571         const char *str;
 572         GSList *list;
 573
 574         DBG("type %d", type);
 575
 576         technology = technology_find(type);
 577         if (technology != NULL) {
 578                 __sync_fetch_and_add(&technology->refcount, 1);
 579                 goto done;
 580         }
 581
 582         str = __connman_service_type2string(type);
 583         if (str == NULL)
 584                 return NULL;
 585
 586         technology = g_try_new0(struct connman_technology, 1);
 587         if (technology == NULL)
 588                 return NULL;
 589
 590         technology->refcount = 1;
 591
 592         technology->type = type;
 593         technology->path = g_strdup_printf("%s/technology/%s",
 594                                                         CONNMAN_PATH, str);
 595
 596         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 597                                                         NULL, free_rfkill);
 598         technology->device_list = NULL;
 599
 600         technology->pending_reply = NULL;
 601         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 602
 603         load_state(technology);
 604
 605         if (g_dbus_register_interface(connection, technology->path,
 606                                         CONNMAN_TECHNOLOGY_INTERFACE,
 607                                         technology_methods, technology_signals,
 608                                         NULL, technology, NULL) == FALSE) {
 609                 connman_error("Failed to register %s", technology->path);
 610                 g_free(technology);
 611                 return NULL;
 612         }
 613
 614         technology_list = g_slist_append(technology_list, technology);
 615
 616         technologies_changed();
 617
 618         if (technology->driver != NULL)
 619                 goto done;
 620
 621         for (list = driver_list; list; list = list->next) {
 622                 struct connman_technology_driver *driver = list->data;
 623
 624                 DBG("driver %p name %s", driver, driver->name);
 625
 626                 if (driver->type != technology->type)
 627                         continue;
 628
 629                 if (driver->probe(technology) == 0) {
 630                         technology->driver = driver;
 631                         break;
 632                 }
 633         }
 634
 635 done:
 636         DBG("technology %p", technology);
 637
 638         return technology;
 639 }
 640
 641 static void technology_put(struct connman_technology *technology)
 642 {
 643         DBG("technology %p", technology);
 644
 645         if (__sync_fetch_and_sub(&technology->refcount, 1) != 1)
 646                 return;
 647
 648         if (technology->driver) {
 649                 technology->driver->remove(technology);
 650                 technology->driver = NULL;
 651         }
 652
 653         technology_list = g_slist_remove(technology_list, technology);
 654
 655         technologies_changed();
 656
 657         g_dbus_unregister_interface(connection, technology->path,
 658                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 659
 660         g_slist_free(technology->device_list);
 661         g_hash_table_destroy(technology->rfkill_list);
 662
 663         g_free(technology->path);
 664         g_free(technology->regdom);
 665         g_free(technology);
 666 }
 667
 668 void __connman_technology_add_interface(enum connman_service_type type,
 669                                 int index, const char *name, const char *ident)
 670 {
 671         struct connman_technology *technology;
 672
 673         switch (type) {
 674         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 675         case CONNMAN_SERVICE_TYPE_SYSTEM:
 676                 return;
 677         case CONNMAN_SERVICE_TYPE_ETHERNET:
 678         case CONNMAN_SERVICE_TYPE_WIFI:
 679         case CONNMAN_SERVICE_TYPE_WIMAX:
 680         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 681         case CONNMAN_SERVICE_TYPE_CELLULAR:
 682         case CONNMAN_SERVICE_TYPE_GPS:
 683         case CONNMAN_SERVICE_TYPE_VPN:
 684         case CONNMAN_SERVICE_TYPE_GADGET:
 685                 break;
 686         }
 687
 688         connman_info("Create interface %s [ %s ]", name,
 689                                 __connman_service_type2string(type));
 690
 691         technology = technology_get(type);
 692
 693         if (technology == NULL || technology->driver == NULL
 694                         || technology->driver->add_interface == NULL)
 695                 return;
 696
 697         technology->driver->add_interface(technology,
 698                                         index, name, ident);
 699 }
 700
 701 void __connman_technology_remove_interface(enum connman_service_type type,
 702                                 int index, const char *name, const char *ident)
 703 {
 704         struct connman_technology *technology;
 705
 706         switch (type) {
 707         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 708         case CONNMAN_SERVICE_TYPE_SYSTEM:
 709                 return;
 710         case CONNMAN_SERVICE_TYPE_ETHERNET:
 711         case CONNMAN_SERVICE_TYPE_WIFI:
 712         case CONNMAN_SERVICE_TYPE_WIMAX:
 713         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 714         case CONNMAN_SERVICE_TYPE_CELLULAR:
 715         case CONNMAN_SERVICE_TYPE_GPS:
 716         case CONNMAN_SERVICE_TYPE_VPN:
 717         case CONNMAN_SERVICE_TYPE_GADGET:
 718                 break;
 719         }
 720
 721         connman_info("Remove interface %s [ %s ]", name,
 722                                 __connman_service_type2string(type));
 723
 724         technology = technology_find(type);
 725
 726         if (technology == NULL || technology->driver == NULL)
 727                 return;
 728
 729         if (technology->driver->remove_interface)
 730                 technology->driver->remove_interface(technology, index);
 731
 732         technology_put(technology);
 733 }
 734
 735 int __connman_technology_add_device(struct connman_device *device)
 736 {
 737         struct connman_technology *technology;
 738         enum connman_service_type type;
 739
 740         DBG("device %p", device);
 741
 742         type = __connman_device_get_service_type(device);
 743         __connman_notifier_register(type);
 744
 745         technology = technology_get(type);
 746         if (technology == NULL)
 747                 return -ENXIO;
 748
 749         if (technology->enable_persistent && !global_offlinemode)
 750                 __connman_device_enable(device);
 751         /* if technology persistent state is offline */
 752         if (!technology->enable_persistent)
 753                 __connman_device_disable(device);
 754
 755         technology->device_list = g_slist_append(technology->device_list,
 756                                                                 device);
 757
 758         return 0;
 759 }
 760
 761 int __connman_technology_remove_device(struct connman_device *device)
 762 {
 763         struct connman_technology *technology;
 764         enum connman_service_type type;
 765
 766         DBG("device %p", device);
 767
 768         type = __connman_device_get_service_type(device);
 769         __connman_notifier_unregister(type);
 770
 771         technology = technology_find(type);
 772         if (technology == NULL)
 773                 return -ENXIO;
 774
 775         technology->device_list = g_slist_remove(technology->device_list,
 776                                                                 device);
 777         if (technology->device_list == NULL) {
 778                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 779                 state_changed(technology);
 780         }
 781
 782         return 0;
 783 }
 784
 785 static gboolean technology_pending_reply(gpointer user_data)
 786 {
 787         struct connman_technology *technology = user_data;
 788         DBusMessage *reply;
 789
 790         /* Power request timedout, send ETIMEDOUT. */
 791         if (technology->pending_reply != NULL) {
 792                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 793                 if (reply != NULL)
 794                         g_dbus_send_message(connection, reply);
 795
 796                 dbus_message_unref(technology->pending_reply);
 797                 technology->pending_reply = NULL;
 798                 technology->pending_timeout = 0;
 799         }
 800
 801         return FALSE;
 802 }
 803
 804 int __connman_technology_enabled(enum connman_service_type type)
 805 {
 806         struct connman_technology *technology;
 807
 808         technology = technology_find(type);
 809         if (technology == NULL)
 810                 return -ENXIO;
 811
 812         if (__sync_fetch_and_add(&technology->enabled, 1) == 0) {
 813                 __connman_notifier_enable(type);
 814                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 815                 state_changed(technology);
 816         }
 817
 818         if (technology->pending_reply != NULL) {
 819                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 820                 dbus_message_unref(technology->pending_reply);
 821                 g_source_remove(technology->pending_timeout);
 822                 technology->pending_reply = NULL;
 823                 technology->pending_timeout = 0;
 824         }
 825
 826         return 0;
 827 }
 828
 829 int __connman_technology_enable(enum connman_service_type type, DBusMessage *msg)
 830 {
 831         struct connman_technology *technology;
 832         GSList *list;
 833         int err = 0;
 834         int ret = -ENODEV;
 835         DBusMessage *reply;
 836
 837         DBG("type %d enable", type);
 838
 839         technology = technology_find(type);
 840         if (technology == NULL) {
 841                 err = -ENXIO;
 842                 goto done;
 843         }
 844
 845         if (technology->pending_reply != NULL) {
 846                 err = -EBUSY;
 847                 goto done;
 848         }
 849
 850         if (msg != NULL) {
 851                 /*
 852                  * This is a bit of a trick. When msg is not NULL it means
 853                  * thats technology_enable was invoked from the manager API. Hence we save
 854                  * the state here.
 855                  */
 856                 technology->enable_persistent = TRUE;
 857                 save_state(technology);
 858         }
 859
 860         __connman_rfkill_block(technology->type, FALSE);
 861
 862         /*
 863          * An empty device list means that devices in the technology
 864          * were rfkill blocked. The unblock above will enable the devs.
 865          */
 866         if (technology->device_list == NULL)
 867                 return 0;
 868
 869         for (list = technology->device_list; list; list = list->next) {
 870                 struct connman_device *device = list->data;
 871
 872                 err = __connman_device_enable(device);
 873                 /*
 874                  * err = 0 : Device was enabled right away.
 875                  * If atleast one device gets enabled, we consider
 876                  * the technology to be enabled.
 877                  */
 878                 if (err == 0)
 879                         ret = 0;
 880         }
 881
 882 done:
 883         if (ret == 0) {
 884                 if (msg != NULL)
 885                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 886                 return ret;
 887         }
 888
 889         if (msg != NULL) {
 890                 if (err == -EINPROGRESS) {
 891                         technology->pending_reply = dbus_message_ref(msg);
 892                         technology->pending_timeout = g_timeout_add_seconds(10,
 893                                         technology_pending_reply, technology);
 894                 } else {
 895                         reply = __connman_error_failed(msg, -err);
 896                         if (reply != NULL)
 897                                 g_dbus_send_message(connection, reply);
 898                 }
 899         }
 900
 901         return err;
 902 }
 903
 904 int __connman_technology_disabled(enum connman_service_type type)
 905 {
 906         struct connman_technology *technology;
 907
 908         technology = technology_find(type);
 909         if (technology == NULL)
 910                 return -ENXIO;
 911
 912         if (technology->pending_reply != NULL) {
 913                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 914                 dbus_message_unref(technology->pending_reply);
 915                 g_source_remove(technology->pending_timeout);
 916                 technology->pending_reply = NULL;
 917                 technology->pending_timeout = 0;
 918         }
 919
 920         if (__sync_fetch_and_sub(&technology->enabled, 1) != 1)
 921                 return 0;
 922
 923         __connman_notifier_disable(type);
 924         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 925         state_changed(technology);
 926
 927         return 0;
 928 }
 929
 930 int __connman_technology_disable(enum connman_service_type type, DBusMessage *msg)
 931 {
 932         struct connman_technology *technology;
 933         GSList *list;
 934         int err = 0;
 935         int ret = -ENODEV;
 936         DBusMessage *reply;
 937
 938         DBG("type %d disable", type);
 939
 940         technology = technology_find(type);
 941         if (technology == NULL) {
 942                 err = -ENXIO;
 943                 goto done;
 944         }
 945
 946         if (technology->pending_reply != NULL) {
 947                 err = -EBUSY;
 948                 goto done;
 949         }
 950
 951         if (technology->tethering == TRUE)
 952                 set_tethering(technology, FALSE);
 953
 954         if (msg != NULL) {
 955                 technology->enable_persistent = FALSE;
 956                 save_state(technology);
 957         }
 958
 959         __connman_rfkill_block(technology->type, TRUE);
 960
 961         for (list = technology->device_list; list; list = list->next) {
 962                 struct connman_device *device = list->data;
 963
 964                 err = __connman_device_disable(device);
 965                 if (err == 0)
 966                         ret = 0;
 967         }
 968
 969 done:
 970         if (ret == 0) {
 971                 if (msg != NULL)
 972                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 973                 return ret;
 974         }
 975
 976         if (msg != NULL) {
 977                 if (err == -EINPROGRESS) {
 978                         technology->pending_reply = dbus_message_ref(msg);
 979                         technology->pending_timeout = g_timeout_add_seconds(10,
 980                                         technology_pending_reply, technology);
 981                 } else {
 982                         reply = __connman_error_failed(msg, -err);
 983                         if (reply != NULL)
 984                                 g_dbus_send_message(connection, reply);
 985                 }
 986         }
 987
 988         return err;
 989 }
 990
 991 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
 992 {
 993         GSList *list;
 994         int err = -EINVAL;
 995
 996         if (global_offlinemode == offlinemode)
 997                 return 0;
 998
 999         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1000
1001         /*
1002          * This is a bit tricky. When you set offlinemode, there is no
1003          * way to differentiate between attempting offline mode and
1004          * resuming offlinemode from last saved profile. We need that
1005          * information in rfkill_update, otherwise it falls back on the
1006          * technology's persistent state. Hence we set the offline mode here
1007          * but save it & call the notifier only if its successful.
1008          */
1009
1010         global_offlinemode = offlinemode;
1011
1012         /* Traverse technology list, enable/disable each technology. */
1013         for (list = technology_list; list; list = list->next) {
1014                 struct connman_technology *technology = list->data;
1015
1016                 if (offlinemode)
1017                         err = __connman_technology_disable(technology->type, NULL);
1018
1019                 if (!offlinemode && technology->enable_persistent)
1020                         err = __connman_technology_enable(technology->type, NULL);
1021         }
1022
1023         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1024                 connman_technology_save_offlinemode();
1025                 __connman_notifier_offlinemode(offlinemode);
1026         } else
1027                 global_offlinemode = connman_technology_load_offlinemode();
1028
1029         return err;
1030 }
1031
1032 int __connman_technology_add_rfkill(unsigned int index,
1033                                         enum connman_service_type type,
1034                                                 connman_bool_t softblock,
1035                                                 connman_bool_t hardblock)
1036 {
1037         struct connman_technology *technology;
1038         struct connman_rfkill *rfkill;
1039
1040         DBG("index %u type %d soft %u hard %u", index, type,
1041                                                         softblock, hardblock);
1042
1043         technology = technology_get(type);
1044         if (technology == NULL)
1045                 return -ENXIO;
1046
1047         rfkill = g_try_new0(struct connman_rfkill, 1);
1048         if (rfkill == NULL)
1049                 return -ENOMEM;
1050
1051         __connman_notifier_register(type);
1052
1053         rfkill->index = index;
1054         rfkill->type = type;
1055         rfkill->softblock = softblock;
1056         rfkill->hardblock = hardblock;
1057
1058         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
1059
1060         if (hardblock) {
1061                 DBG("%s is switched off.", get_name(type));
1062                 return 0;
1063         }
1064
1065         /*
1066          * If Offline mode is on, we softblock the device if it isnt already.
1067          * If Offline mode is off, we rely on the persistent state of tech.
1068          */
1069         if (global_offlinemode) {
1070                 if (!softblock)
1071                         return __connman_rfkill_block(type, TRUE);
1072         } else {
1073                 if (technology->enable_persistent && softblock)
1074                         return __connman_rfkill_block(type, FALSE);
1075                 /* if technology persistent state is offline */
1076                 if (!technology->enable_persistent && !softblock)
1077                         return __connman_rfkill_block(type, TRUE);
1078         }
1079
1080         return 0;
1081 }
1082
1083 int __connman_technology_update_rfkill(unsigned int index,
1084                                         enum connman_service_type type,
1085                                                 connman_bool_t softblock,
1086                                                 connman_bool_t hardblock)
1087 {
1088         struct connman_technology *technology;
1089         struct connman_rfkill *rfkill;
1090
1091         DBG("index %u soft %u hard %u", index, softblock, hardblock);
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         if (rfkill->softblock == softblock &&
1102                 rfkill->hardblock == hardblock)
1103                 return 0;
1104
1105         rfkill->softblock = softblock;
1106         rfkill->hardblock = hardblock;
1107
1108         if (hardblock) {
1109                 DBG("%s is switched off.", get_name(type));
1110                 return 0;
1111         }
1112
1113         if (!global_offlinemode) {
1114                 if (technology->enable_persistent && softblock)
1115                         return __connman_rfkill_block(type, FALSE);
1116                 if (!technology->enable_persistent && !softblock)
1117                         return __connman_rfkill_block(type, TRUE);
1118         }
1119
1120         return 0;
1121 }
1122
1123 int __connman_technology_remove_rfkill(unsigned int index,
1124                                         enum connman_service_type type)
1125 {
1126         struct connman_technology *technology;
1127         struct connman_rfkill *rfkill;
1128
1129         DBG("index %u", index);
1130
1131         technology = technology_find(type);
1132         if (technology == NULL)
1133                 return -ENXIO;
1134
1135         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1136         if (rfkill == NULL)
1137                 return -ENXIO;
1138
1139         g_hash_table_remove(technology->rfkill_list, &index);
1140
1141         technology_put(technology);
1142
1143         return 0;
1144 }
1145
1146 int __connman_technology_init(void)
1147 {
1148         DBG("");
1149
1150         connection = connman_dbus_get_connection();
1151
1152         global_offlinemode = connman_technology_load_offlinemode();
1153
1154         return 0;
1155 }
1156
1157 void __connman_technology_cleanup(void)
1158 {
1159         DBG("");
1160
1161         dbus_connection_unref(connection);
1162 }