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 void append_properties(DBusMessageIter *iter,
 428                 struct connman_technology *technology)
 429 {
 430         DBusMessageIter dict;
 431         const char *str;
 432
 433         connman_dbus_dict_open(iter, &dict);
 434
 435         str = state2string(technology->state);
 436         if (str != NULL)
 437                 connman_dbus_dict_append_basic(&dict, "State",
 438                                                 DBUS_TYPE_STRING, &str);
 439
 440         str = get_name(technology->type);
 441         if (str != NULL)
 442                 connman_dbus_dict_append_basic(&dict, "Name",
 443                                                 DBUS_TYPE_STRING, &str);
 444
 445         str = __connman_service_type2string(technology->type);
 446         if (str != NULL)
 447                 connman_dbus_dict_append_basic(&dict, "Type",
 448                                                 DBUS_TYPE_STRING, &str);
 449
 450         connman_dbus_dict_append_basic(&dict, "Tethering",
 451                                         DBUS_TYPE_BOOLEAN,
 452                                         &technology->tethering);
 453
 454         if (technology->tethering_ident != NULL)
 455                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 456                                                 DBUS_TYPE_STRING,
 457                                                 &technology->tethering_ident);
 458
 459         if (technology->tethering_passphrase != NULL)
 460                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 461                                                 DBUS_TYPE_STRING,
 462                                                 &technology->tethering_passphrase);
 463
 464         connman_dbus_dict_close(iter, &dict);
 465 }
 466
 467 static void technology_added_signal(struct connman_technology *technology)
 468 {
 469         DBusMessage *signal;
 470         DBusMessageIter iter;
 471
 472         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 473                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 474         if (signal == NULL)
 475                 return;
 476
 477         dbus_message_iter_init_append(signal, &iter);
 478         append_properties(&iter, technology);
 479
 480         dbus_connection_send(connection, signal, NULL);
 481         dbus_message_unref(signal);
 482 }
 483
 484 static void technology_removed_signal(struct connman_technology *technology)
 485 {
 486         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 487                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 488                         DBUS_TYPE_OBJECT_PATH, technology->path);
 489 }
 490
 491 static DBusMessage *get_properties(DBusConnection *conn,
 492                                         DBusMessage *message, void *user_data)
 493 {
 494         struct connman_technology *technology = user_data;
 495         DBusMessage *reply;
 496         DBusMessageIter iter;
 497
 498         reply = dbus_message_new_method_return(message);
 499         if (reply == NULL)
 500                 return NULL;
 501
 502         dbus_message_iter_init_append(reply, &iter);
 503         append_properties(&iter, technology);
 504
 505         return reply;
 506 }
 507
 508 static DBusMessage *set_property(DBusConnection *conn,
 509                                         DBusMessage *msg, void *data)
 510 {
 511         struct connman_technology *technology = data;
 512         DBusMessageIter iter, value;
 513         const char *name;
 514         int type;
 515
 516         DBG("conn %p", conn);
 517
 518         if (dbus_message_iter_init(msg, &iter) == FALSE)
 519                 return __connman_error_invalid_arguments(msg);
 520
 521         dbus_message_iter_get_basic(&iter, &name);
 522         dbus_message_iter_next(&iter);
 523         dbus_message_iter_recurse(&iter, &value);
 524
 525         type = dbus_message_iter_get_arg_type(&value);
 526
 527         DBG("property %s", name);
 528
 529         if (g_str_equal(name, "Tethering") == TRUE) {
 530                 int err;
 531                 connman_bool_t tethering;
 532
 533                 if (type != DBUS_TYPE_BOOLEAN)
 534                         return __connman_error_invalid_arguments(msg);
 535
 536                 dbus_message_iter_get_basic(&value, &tethering);
 537
 538                 if (technology->tethering == tethering)
 539                         return __connman_error_in_progress(msg);
 540
 541                 err = set_tethering(technology, tethering);
 542                 if (err < 0)
 543                         return __connman_error_failed(msg, -err);
 544
 545         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 546                 const char *str;
 547
 548                 dbus_message_iter_get_basic(&value, &str);
 549
 550                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 551                         return __connman_error_not_supported(msg);
 552
 553                 technology->tethering_ident = g_strdup(str);
 554         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 555                 const char *str;
 556
 557                 dbus_message_iter_get_basic(&value, &str);
 558
 559                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 560                         return __connman_error_not_supported(msg);
 561
 562                 if (strlen(str) < 8)
 563                         return __connman_error_invalid_arguments(msg);
 564
 565                 technology->tethering_passphrase = g_strdup(str);
 566         } else
 567                 return __connman_error_invalid_property(msg);
 568
 569         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 570 }
 571
 572 static GDBusMethodTable technology_methods[] = {
 573         { "GetProperties", "",   "a{sv}", get_properties },
 574         { "SetProperty",   "sv", "",      set_property   },
 575         { },
 576 };
 577
 578 static GDBusSignalTable technology_signals[] = {
 579         { "PropertyChanged", "sv" },
 580         { },
 581 };
 582
 583 static struct connman_technology *technology_find(enum connman_service_type type)
 584 {
 585         GSList *list;
 586
 587         DBG("type %d", type);
 588
 589         for (list = technology_list; list; list = list->next) {
 590                 struct connman_technology *technology = list->data;
 591
 592                 if (technology->type == type)
 593                         return technology;
 594         }
 595
 596         return NULL;
 597 }
 598
 599 static struct connman_technology *technology_get(enum connman_service_type type)
 600 {
 601         struct connman_technology *technology;
 602         const char *str;
 603         GSList *list;
 604
 605         DBG("type %d", type);
 606
 607         technology = technology_find(type);
 608         if (technology != NULL) {
 609                 __sync_fetch_and_add(&technology->refcount, 1);
 610                 goto done;
 611         }
 612
 613         str = __connman_service_type2string(type);
 614         if (str == NULL)
 615                 return NULL;
 616
 617         technology = g_try_new0(struct connman_technology, 1);
 618         if (technology == NULL)
 619                 return NULL;
 620
 621         technology->refcount = 1;
 622
 623         technology->type = type;
 624         technology->path = g_strdup_printf("%s/technology/%s",
 625                                                         CONNMAN_PATH, str);
 626
 627         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 628                                                         NULL, free_rfkill);
 629         technology->device_list = NULL;
 630
 631         technology->pending_reply = NULL;
 632         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 633
 634         load_state(technology);
 635
 636         if (g_dbus_register_interface(connection, technology->path,
 637                                         CONNMAN_TECHNOLOGY_INTERFACE,
 638                                         technology_methods, technology_signals,
 639                                         NULL, technology, NULL) == FALSE) {
 640                 connman_error("Failed to register %s", technology->path);
 641                 g_free(technology);
 642                 return NULL;
 643         }
 644
 645         technology_list = g_slist_append(technology_list, technology);
 646
 647         technologies_changed();
 648         technology_added_signal(technology);
 649
 650         if (technology->driver != NULL)
 651                 goto done;
 652
 653         for (list = driver_list; list; list = list->next) {
 654                 struct connman_technology_driver *driver = list->data;
 655
 656                 DBG("driver %p name %s", driver, driver->name);
 657
 658                 if (driver->type != technology->type)
 659                         continue;
 660
 661                 if (driver->probe(technology) == 0) {
 662                         technology->driver = driver;
 663                         break;
 664                 }
 665         }
 666
 667 done:
 668         DBG("technology %p", technology);
 669
 670         return technology;
 671 }
 672
 673 static void technology_put(struct connman_technology *technology)
 674 {
 675         DBG("technology %p", technology);
 676
 677         if (__sync_fetch_and_sub(&technology->refcount, 1) != 1)
 678                 return;
 679
 680         if (technology->driver) {
 681                 technology->driver->remove(technology);
 682                 technology->driver = NULL;
 683         }
 684
 685         technology_list = g_slist_remove(technology_list, technology);
 686
 687         technologies_changed();
 688         technology_removed_signal(technology);
 689
 690         g_dbus_unregister_interface(connection, technology->path,
 691                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 692
 693         g_slist_free(technology->device_list);
 694         g_hash_table_destroy(technology->rfkill_list);
 695
 696         g_free(technology->path);
 697         g_free(technology->regdom);
 698         g_free(technology);
 699 }
 700
 701 void __connman_technology_add_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("Create interface %s [ %s ]", name,
 722                                 __connman_service_type2string(type));
 723
 724         technology = technology_get(type);
 725
 726         if (technology == NULL || technology->driver == NULL
 727                         || technology->driver->add_interface == NULL)
 728                 return;
 729
 730         technology->driver->add_interface(technology,
 731                                         index, name, ident);
 732 }
 733
 734 void __connman_technology_remove_interface(enum connman_service_type type,
 735                                 int index, const char *name, const char *ident)
 736 {
 737         struct connman_technology *technology;
 738
 739         switch (type) {
 740         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 741         case CONNMAN_SERVICE_TYPE_SYSTEM:
 742                 return;
 743         case CONNMAN_SERVICE_TYPE_ETHERNET:
 744         case CONNMAN_SERVICE_TYPE_WIFI:
 745         case CONNMAN_SERVICE_TYPE_WIMAX:
 746         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 747         case CONNMAN_SERVICE_TYPE_CELLULAR:
 748         case CONNMAN_SERVICE_TYPE_GPS:
 749         case CONNMAN_SERVICE_TYPE_VPN:
 750         case CONNMAN_SERVICE_TYPE_GADGET:
 751                 break;
 752         }
 753
 754         connman_info("Remove interface %s [ %s ]", name,
 755                                 __connman_service_type2string(type));
 756
 757         technology = technology_find(type);
 758
 759         if (technology == NULL || technology->driver == NULL)
 760                 return;
 761
 762         if (technology->driver->remove_interface)
 763                 technology->driver->remove_interface(technology, index);
 764
 765         technology_put(technology);
 766 }
 767
 768 int __connman_technology_add_device(struct connman_device *device)
 769 {
 770         struct connman_technology *technology;
 771         enum connman_service_type type;
 772
 773         DBG("device %p", device);
 774
 775         type = __connman_device_get_service_type(device);
 776         __connman_notifier_register(type);
 777
 778         technology = technology_get(type);
 779         if (technology == NULL)
 780                 return -ENXIO;
 781
 782         if (technology->enable_persistent && !global_offlinemode)
 783                 __connman_device_enable(device);
 784         /* if technology persistent state is offline */
 785         if (!technology->enable_persistent)
 786                 __connman_device_disable(device);
 787
 788         technology->device_list = g_slist_append(technology->device_list,
 789                                                                 device);
 790
 791         return 0;
 792 }
 793
 794 int __connman_technology_remove_device(struct connman_device *device)
 795 {
 796         struct connman_technology *technology;
 797         enum connman_service_type type;
 798
 799         DBG("device %p", device);
 800
 801         type = __connman_device_get_service_type(device);
 802         __connman_notifier_unregister(type);
 803
 804         technology = technology_find(type);
 805         if (technology == NULL)
 806                 return -ENXIO;
 807
 808         technology->device_list = g_slist_remove(technology->device_list,
 809                                                                 device);
 810         if (technology->device_list == NULL) {
 811                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 812                 state_changed(technology);
 813         }
 814
 815         return 0;
 816 }
 817
 818 static gboolean technology_pending_reply(gpointer user_data)
 819 {
 820         struct connman_technology *technology = user_data;
 821         DBusMessage *reply;
 822
 823         /* Power request timedout, send ETIMEDOUT. */
 824         if (technology->pending_reply != NULL) {
 825                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 826                 if (reply != NULL)
 827                         g_dbus_send_message(connection, reply);
 828
 829                 dbus_message_unref(technology->pending_reply);
 830                 technology->pending_reply = NULL;
 831                 technology->pending_timeout = 0;
 832         }
 833
 834         return FALSE;
 835 }
 836
 837 int __connman_technology_enabled(enum connman_service_type type)
 838 {
 839         struct connman_technology *technology;
 840
 841         technology = technology_find(type);
 842         if (technology == NULL)
 843                 return -ENXIO;
 844
 845         if (__sync_fetch_and_add(&technology->enabled, 1) == 0) {
 846                 __connman_notifier_enable(type);
 847                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 848                 state_changed(technology);
 849         }
 850
 851         if (technology->pending_reply != NULL) {
 852                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 853                 dbus_message_unref(technology->pending_reply);
 854                 g_source_remove(technology->pending_timeout);
 855                 technology->pending_reply = NULL;
 856                 technology->pending_timeout = 0;
 857         }
 858
 859         return 0;
 860 }
 861
 862 int __connman_technology_enable(enum connman_service_type type, DBusMessage *msg)
 863 {
 864         struct connman_technology *technology;
 865         GSList *list;
 866         int err = 0;
 867         int ret = -ENODEV;
 868         DBusMessage *reply;
 869
 870         DBG("type %d enable", type);
 871
 872         technology = technology_find(type);
 873         if (technology == NULL) {
 874                 err = -ENXIO;
 875                 goto done;
 876         }
 877
 878         if (technology->pending_reply != NULL) {
 879                 err = -EBUSY;
 880                 goto done;
 881         }
 882
 883         if (msg != NULL) {
 884                 /*
 885                  * This is a bit of a trick. When msg is not NULL it means
 886                  * thats technology_enable was invoked from the manager API. Hence we save
 887                  * the state here.
 888                  */
 889                 technology->enable_persistent = TRUE;
 890                 save_state(technology);
 891         }
 892
 893         __connman_rfkill_block(technology->type, FALSE);
 894
 895         /*
 896          * An empty device list means that devices in the technology
 897          * were rfkill blocked. The unblock above will enable the devs.
 898          */
 899         if (technology->device_list == NULL)
 900                 return 0;
 901
 902         for (list = technology->device_list; list; list = list->next) {
 903                 struct connman_device *device = list->data;
 904
 905                 err = __connman_device_enable(device);
 906                 /*
 907                  * err = 0 : Device was enabled right away.
 908                  * If atleast one device gets enabled, we consider
 909                  * the technology to be enabled.
 910                  */
 911                 if (err == 0)
 912                         ret = 0;
 913         }
 914
 915 done:
 916         if (ret == 0) {
 917                 if (msg != NULL)
 918                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 919                 return ret;
 920         }
 921
 922         if (msg != NULL) {
 923                 if (err == -EINPROGRESS) {
 924                         technology->pending_reply = dbus_message_ref(msg);
 925                         technology->pending_timeout = g_timeout_add_seconds(10,
 926                                         technology_pending_reply, technology);
 927                 } else {
 928                         reply = __connman_error_failed(msg, -err);
 929                         if (reply != NULL)
 930                                 g_dbus_send_message(connection, reply);
 931                 }
 932         }
 933
 934         return err;
 935 }
 936
 937 int __connman_technology_disabled(enum connman_service_type type)
 938 {
 939         struct connman_technology *technology;
 940
 941         technology = technology_find(type);
 942         if (technology == NULL)
 943                 return -ENXIO;
 944
 945         if (technology->pending_reply != NULL) {
 946                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 947                 dbus_message_unref(technology->pending_reply);
 948                 g_source_remove(technology->pending_timeout);
 949                 technology->pending_reply = NULL;
 950                 technology->pending_timeout = 0;
 951         }
 952
 953         if (__sync_fetch_and_sub(&technology->enabled, 1) != 1)
 954                 return 0;
 955
 956         __connman_notifier_disable(type);
 957         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 958         state_changed(technology);
 959
 960         return 0;
 961 }
 962
 963 int __connman_technology_disable(enum connman_service_type type, DBusMessage *msg)
 964 {
 965         struct connman_technology *technology;
 966         GSList *list;
 967         int err = 0;
 968         int ret = -ENODEV;
 969         DBusMessage *reply;
 970
 971         DBG("type %d disable", type);
 972
 973         technology = technology_find(type);
 974         if (technology == NULL) {
 975                 err = -ENXIO;
 976                 goto done;
 977         }
 978
 979         if (technology->pending_reply != NULL) {
 980                 err = -EBUSY;
 981                 goto done;
 982         }
 983
 984         if (technology->tethering == TRUE)
 985                 set_tethering(technology, FALSE);
 986
 987         if (msg != NULL) {
 988                 technology->enable_persistent = FALSE;
 989                 save_state(technology);
 990         }
 991
 992         __connman_rfkill_block(technology->type, TRUE);
 993
 994         for (list = technology->device_list; list; list = list->next) {
 995                 struct connman_device *device = list->data;
 996
 997                 err = __connman_device_disable(device);
 998                 if (err == 0)
 999                         ret = 0;
1000         }
1001
1002 done:
1003         if (ret == 0) {
1004                 if (msg != NULL)
1005                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
1006                 return ret;
1007         }
1008
1009         if (msg != NULL) {
1010                 if (err == -EINPROGRESS) {
1011                         technology->pending_reply = dbus_message_ref(msg);
1012                         technology->pending_timeout = g_timeout_add_seconds(10,
1013                                         technology_pending_reply, technology);
1014                 } else {
1015                         reply = __connman_error_failed(msg, -err);
1016                         if (reply != NULL)
1017                                 g_dbus_send_message(connection, reply);
1018                 }
1019         }
1020
1021         return err;
1022 }
1023
1024 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
1025 {
1026         GSList *list;
1027         int err = -EINVAL;
1028
1029         if (global_offlinemode == offlinemode)
1030                 return 0;
1031
1032         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1033
1034         /*
1035          * This is a bit tricky. When you set offlinemode, there is no
1036          * way to differentiate between attempting offline mode and
1037          * resuming offlinemode from last saved profile. We need that
1038          * information in rfkill_update, otherwise it falls back on the
1039          * technology's persistent state. Hence we set the offline mode here
1040          * but save it & call the notifier only if its successful.
1041          */
1042
1043         global_offlinemode = offlinemode;
1044
1045         /* Traverse technology list, enable/disable each technology. */
1046         for (list = technology_list; list; list = list->next) {
1047                 struct connman_technology *technology = list->data;
1048
1049                 if (offlinemode)
1050                         err = __connman_technology_disable(technology->type, NULL);
1051
1052                 if (!offlinemode && technology->enable_persistent)
1053                         err = __connman_technology_enable(technology->type, NULL);
1054         }
1055
1056         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1057                 connman_technology_save_offlinemode();
1058                 __connman_notifier_offlinemode(offlinemode);
1059         } else
1060                 global_offlinemode = connman_technology_load_offlinemode();
1061
1062         return err;
1063 }
1064
1065 int __connman_technology_add_rfkill(unsigned int index,
1066                                         enum connman_service_type type,
1067                                                 connman_bool_t softblock,
1068                                                 connman_bool_t hardblock)
1069 {
1070         struct connman_technology *technology;
1071         struct connman_rfkill *rfkill;
1072
1073         DBG("index %u type %d soft %u hard %u", index, type,
1074                                                         softblock, hardblock);
1075
1076         technology = technology_get(type);
1077         if (technology == NULL)
1078                 return -ENXIO;
1079
1080         rfkill = g_try_new0(struct connman_rfkill, 1);
1081         if (rfkill == NULL)
1082                 return -ENOMEM;
1083
1084         __connman_notifier_register(type);
1085
1086         rfkill->index = index;
1087         rfkill->type = type;
1088         rfkill->softblock = softblock;
1089         rfkill->hardblock = hardblock;
1090
1091         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
1092
1093         if (hardblock) {
1094                 DBG("%s is switched off.", get_name(type));
1095                 return 0;
1096         }
1097
1098         /*
1099          * If Offline mode is on, we softblock the device if it isnt already.
1100          * If Offline mode is off, we rely on the persistent state of tech.
1101          */
1102         if (global_offlinemode) {
1103                 if (!softblock)
1104                         return __connman_rfkill_block(type, TRUE);
1105         } else {
1106                 if (technology->enable_persistent && softblock)
1107                         return __connman_rfkill_block(type, FALSE);
1108                 /* if technology persistent state is offline */
1109                 if (!technology->enable_persistent && !softblock)
1110                         return __connman_rfkill_block(type, TRUE);
1111         }
1112
1113         return 0;
1114 }
1115
1116 int __connman_technology_update_rfkill(unsigned int index,
1117                                         enum connman_service_type type,
1118                                                 connman_bool_t softblock,
1119                                                 connman_bool_t hardblock)
1120 {
1121         struct connman_technology *technology;
1122         struct connman_rfkill *rfkill;
1123
1124         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1125
1126         technology = technology_find(type);
1127         if (technology == NULL)
1128                 return -ENXIO;
1129
1130         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1131         if (rfkill == NULL)
1132                 return -ENXIO;
1133
1134         if (rfkill->softblock == softblock &&
1135                 rfkill->hardblock == hardblock)
1136                 return 0;
1137
1138         rfkill->softblock = softblock;
1139         rfkill->hardblock = hardblock;
1140
1141         if (hardblock) {
1142                 DBG("%s is switched off.", get_name(type));
1143                 return 0;
1144         }
1145
1146         if (!global_offlinemode) {
1147                 if (technology->enable_persistent && softblock)
1148                         return __connman_rfkill_block(type, FALSE);
1149                 if (!technology->enable_persistent && !softblock)
1150                         return __connman_rfkill_block(type, TRUE);
1151         }
1152
1153         return 0;
1154 }
1155
1156 int __connman_technology_remove_rfkill(unsigned int index,
1157                                         enum connman_service_type type)
1158 {
1159         struct connman_technology *technology;
1160         struct connman_rfkill *rfkill;
1161
1162         DBG("index %u", index);
1163
1164         technology = technology_find(type);
1165         if (technology == NULL)
1166                 return -ENXIO;
1167
1168         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1169         if (rfkill == NULL)
1170                 return -ENXIO;
1171
1172         g_hash_table_remove(technology->rfkill_list, &index);
1173
1174         technology_put(technology);
1175
1176         return 0;
1177 }
1178
1179 int __connman_technology_init(void)
1180 {
1181         DBG("");
1182
1183         connection = connman_dbus_get_connection();
1184
1185         global_offlinemode = connman_technology_load_offlinemode();
1186
1187         return 0;
1188 }
1189
1190 void __connman_technology_cleanup(void)
1191 {
1192         DBG("");
1193
1194         dbus_connection_unref(connection);
1195 }