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 static const char *state2string(enum connman_technology_state state)
 244 {
 245         switch (state) {
 246         case CONNMAN_TECHNOLOGY_STATE_UNKNOWN:
 247                 break;
 248         case CONNMAN_TECHNOLOGY_STATE_OFFLINE:
 249                 return "offline";
 250         case CONNMAN_TECHNOLOGY_STATE_ENABLED:
 251                 return "enabled";
 252         case CONNMAN_TECHNOLOGY_STATE_CONNECTED:
 253                 return "connected";
 254         }
 255
 256         return NULL;
 257 }
 258
 259 static void state_changed(struct connman_technology *technology)
 260 {
 261         const char *str;
 262
 263         str = state2string(technology->state);
 264         if (str == NULL)
 265                 return;
 266
 267         connman_dbus_property_changed_basic(technology->path,
 268                                 CONNMAN_TECHNOLOGY_INTERFACE, "State",
 269                                                 DBUS_TYPE_STRING, &str);
 270 }
 271
 272 static const char *get_name(enum connman_service_type type)
 273 {
 274         switch (type) {
 275         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 276         case CONNMAN_SERVICE_TYPE_SYSTEM:
 277         case CONNMAN_SERVICE_TYPE_GPS:
 278         case CONNMAN_SERVICE_TYPE_VPN:
 279         case CONNMAN_SERVICE_TYPE_GADGET:
 280                 break;
 281         case CONNMAN_SERVICE_TYPE_ETHERNET:
 282                 return "Wired";
 283         case CONNMAN_SERVICE_TYPE_WIFI:
 284                 return "WiFi";
 285         case CONNMAN_SERVICE_TYPE_WIMAX:
 286                 return "WiMAX";
 287         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 288                 return "Bluetooth";
 289         case CONNMAN_SERVICE_TYPE_CELLULAR:
 290                 return "Cellular";
 291         }
 292
 293         return NULL;
 294 }
 295
 296 static void load_state(struct connman_technology *technology)
 297 {
 298         GKeyFile *keyfile;
 299         gchar *identifier;
 300         GError *error = NULL;
 301         connman_bool_t enable;
 302
 303         DBG("technology %p", technology);
 304
 305         keyfile = __connman_storage_load_global();
 306         /* Fallback on disabling technology if file not found. */
 307         if (keyfile == NULL) {
 308                 technology->enable_persistent = FALSE;
 309                 return;
 310         }
 311
 312         identifier = g_strdup_printf("%s", get_name(technology->type));
 313         if (identifier == NULL)
 314                 goto done;
 315
 316         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 317         if (error == NULL)
 318                 technology->enable_persistent = enable;
 319         else {
 320                 technology->enable_persistent = FALSE;
 321                 g_clear_error(&error);
 322         }
 323 done:
 324         g_free(identifier);
 325
 326         g_key_file_free(keyfile);
 327
 328         return;
 329 }
 330
 331 static void save_state(struct connman_technology *technology)
 332 {
 333         GKeyFile *keyfile;
 334         gchar *identifier;
 335
 336         DBG("technology %p", technology);
 337
 338         keyfile = __connman_storage_load_global();
 339         if (keyfile == NULL)
 340                 keyfile = g_key_file_new();
 341
 342         identifier = g_strdup_printf("%s", get_name(technology->type));
 343         if (identifier == NULL)
 344                 goto done;
 345
 346         g_key_file_set_boolean(keyfile, identifier, "Enable",
 347                                 technology->enable_persistent);
 348
 349 done:
 350         g_free(identifier);
 351
 352         __connman_storage_save_global(keyfile);
 353
 354         g_key_file_free(keyfile);
 355
 356         return;
 357 }
 358
 359 connman_bool_t __connman_technology_get_offlinemode(void)
 360 {
 361         return global_offlinemode;
 362 }
 363
 364 static void connman_technology_save_offlinemode()
 365 {
 366         GKeyFile *keyfile;
 367
 368         keyfile = __connman_storage_load_global();
 369         if (keyfile == NULL)
 370                 keyfile = g_key_file_new();
 371
 372         g_key_file_set_boolean(keyfile, "global",
 373                                         "OfflineMode", global_offlinemode);
 374
 375         __connman_storage_save_global(keyfile);
 376
 377         g_key_file_free(keyfile);
 378
 379         return;
 380 }
 381
 382 static connman_bool_t connman_technology_load_offlinemode()
 383 {
 384         GKeyFile *keyfile;
 385         GError *error = NULL;
 386         connman_bool_t offlinemode;
 387
 388         /* If there is a error, we enable offlinemode */
 389         keyfile = __connman_storage_load_global();
 390         if (keyfile == NULL)
 391                 return TRUE;
 392
 393         offlinemode = g_key_file_get_boolean(keyfile, "global",
 394                                                 "OfflineMode", &error);
 395         if (error != NULL) {
 396                 offlinemode = TRUE;
 397                 g_clear_error(&error);
 398         }
 399
 400         g_key_file_free(keyfile);
 401
 402         return offlinemode;
 403 }
 404
 405 static void append_properties(DBusMessageIter *iter,
 406                 struct connman_technology *technology)
 407 {
 408         DBusMessageIter dict;
 409         const char *str;
 410
 411         connman_dbus_dict_open(iter, &dict);
 412
 413         str = state2string(technology->state);
 414         if (str != NULL)
 415                 connman_dbus_dict_append_basic(&dict, "State",
 416                                                 DBUS_TYPE_STRING, &str);
 417
 418         str = get_name(technology->type);
 419         if (str != NULL)
 420                 connman_dbus_dict_append_basic(&dict, "Name",
 421                                                 DBUS_TYPE_STRING, &str);
 422
 423         str = __connman_service_type2string(technology->type);
 424         if (str != NULL)
 425                 connman_dbus_dict_append_basic(&dict, "Type",
 426                                                 DBUS_TYPE_STRING, &str);
 427
 428         connman_dbus_dict_append_basic(&dict, "Tethering",
 429                                         DBUS_TYPE_BOOLEAN,
 430                                         &technology->tethering);
 431
 432         if (technology->tethering_ident != NULL)
 433                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 434                                                 DBUS_TYPE_STRING,
 435                                                 &technology->tethering_ident);
 436
 437         if (technology->tethering_passphrase != NULL)
 438                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 439                                                 DBUS_TYPE_STRING,
 440                                                 &technology->tethering_passphrase);
 441
 442         connman_dbus_dict_close(iter, &dict);
 443 }
 444
 445 static void technology_added_signal(struct connman_technology *technology)
 446 {
 447         DBusMessage *signal;
 448         DBusMessageIter iter;
 449
 450         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 451                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 452         if (signal == NULL)
 453                 return;
 454
 455         dbus_message_iter_init_append(signal, &iter);
 456         append_properties(&iter, technology);
 457
 458         dbus_connection_send(connection, signal, NULL);
 459         dbus_message_unref(signal);
 460 }
 461
 462 static void technology_removed_signal(struct connman_technology *technology)
 463 {
 464         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 465                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 466                         DBUS_TYPE_OBJECT_PATH, technology->path);
 467 }
 468
 469 static DBusMessage *get_properties(DBusConnection *conn,
 470                                         DBusMessage *message, void *user_data)
 471 {
 472         struct connman_technology *technology = user_data;
 473         DBusMessage *reply;
 474         DBusMessageIter iter;
 475
 476         reply = dbus_message_new_method_return(message);
 477         if (reply == NULL)
 478                 return NULL;
 479
 480         dbus_message_iter_init_append(reply, &iter);
 481         append_properties(&iter, technology);
 482
 483         return reply;
 484 }
 485
 486 void __connman_technology_list_struct(DBusMessageIter *array)
 487 {
 488         GSList *list;
 489         DBusMessageIter entry;
 490
 491         for (list = technology_list; list; list = list->next) {
 492                 struct connman_technology *technology = list->data;
 493
 494                 if (technology->path == NULL)
 495                         continue;
 496
 497                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 498                                 NULL, &entry);
 499                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 500                                 &technology->path);
 501                 append_properties(&entry, technology);
 502                 dbus_message_iter_close_container(array, &entry);
 503         }
 504 }
 505
 506 static DBusMessage *set_property(DBusConnection *conn,
 507                                         DBusMessage *msg, void *data)
 508 {
 509         struct connman_technology *technology = data;
 510         DBusMessageIter iter, value;
 511         const char *name;
 512         int type;
 513
 514         DBG("conn %p", conn);
 515
 516         if (dbus_message_iter_init(msg, &iter) == FALSE)
 517                 return __connman_error_invalid_arguments(msg);
 518
 519         dbus_message_iter_get_basic(&iter, &name);
 520         dbus_message_iter_next(&iter);
 521         dbus_message_iter_recurse(&iter, &value);
 522
 523         type = dbus_message_iter_get_arg_type(&value);
 524
 525         DBG("property %s", name);
 526
 527         if (g_str_equal(name, "Tethering") == TRUE) {
 528                 int err;
 529                 connman_bool_t tethering;
 530
 531                 if (type != DBUS_TYPE_BOOLEAN)
 532                         return __connman_error_invalid_arguments(msg);
 533
 534                 dbus_message_iter_get_basic(&value, &tethering);
 535
 536                 if (technology->tethering == tethering)
 537                         return __connman_error_in_progress(msg);
 538
 539                 err = set_tethering(technology, tethering);
 540                 if (err < 0)
 541                         return __connman_error_failed(msg, -err);
 542
 543         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 544                 const char *str;
 545
 546                 dbus_message_iter_get_basic(&value, &str);
 547
 548                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 549                         return __connman_error_not_supported(msg);
 550
 551                 technology->tethering_ident = g_strdup(str);
 552         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 553                 const char *str;
 554
 555                 dbus_message_iter_get_basic(&value, &str);
 556
 557                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 558                         return __connman_error_not_supported(msg);
 559
 560                 if (strlen(str) < 8)
 561                         return __connman_error_invalid_arguments(msg);
 562
 563                 technology->tethering_passphrase = g_strdup(str);
 564         } else
 565                 return __connman_error_invalid_property(msg);
 566
 567         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 568 }
 569
 570 static GDBusMethodTable technology_methods[] = {
 571         { "GetProperties", "",   "a{sv}", get_properties },
 572         { "SetProperty",   "sv", "",      set_property   },
 573         { },
 574 };
 575
 576 static GDBusSignalTable technology_signals[] = {
 577         { "PropertyChanged", "sv" },
 578         { },
 579 };
 580
 581 static struct connman_technology *technology_find(enum connman_service_type type)
 582 {
 583         GSList *list;
 584
 585         DBG("type %d", type);
 586
 587         for (list = technology_list; list; list = list->next) {
 588                 struct connman_technology *technology = list->data;
 589
 590                 if (technology->type == type)
 591                         return technology;
 592         }
 593
 594         return NULL;
 595 }
 596
 597 static struct connman_technology *technology_get(enum connman_service_type type)
 598 {
 599         struct connman_technology *technology;
 600         const char *str;
 601         GSList *list;
 602
 603         DBG("type %d", type);
 604
 605         technology = technology_find(type);
 606         if (technology != NULL) {
 607                 __sync_fetch_and_add(&technology->refcount, 1);
 608                 goto done;
 609         }
 610
 611         str = __connman_service_type2string(type);
 612         if (str == NULL)
 613                 return NULL;
 614
 615         technology = g_try_new0(struct connman_technology, 1);
 616         if (technology == NULL)
 617                 return NULL;
 618
 619         technology->refcount = 1;
 620
 621         technology->type = type;
 622         technology->path = g_strdup_printf("%s/technology/%s",
 623                                                         CONNMAN_PATH, str);
 624
 625         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 626                                                         NULL, free_rfkill);
 627         technology->device_list = NULL;
 628
 629         technology->pending_reply = NULL;
 630         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 631
 632         load_state(technology);
 633
 634         if (g_dbus_register_interface(connection, technology->path,
 635                                         CONNMAN_TECHNOLOGY_INTERFACE,
 636                                         technology_methods, technology_signals,
 637                                         NULL, technology, NULL) == FALSE) {
 638                 connman_error("Failed to register %s", technology->path);
 639                 g_free(technology);
 640                 return NULL;
 641         }
 642
 643         technology_list = g_slist_append(technology_list, technology);
 644
 645         technology_added_signal(technology);
 646
 647         if (technology->driver != NULL)
 648                 goto done;
 649
 650         for (list = driver_list; list; list = list->next) {
 651                 struct connman_technology_driver *driver = list->data;
 652
 653                 DBG("driver %p name %s", driver, driver->name);
 654
 655                 if (driver->type != technology->type)
 656                         continue;
 657
 658                 if (driver->probe(technology) == 0) {
 659                         technology->driver = driver;
 660                         break;
 661                 }
 662         }
 663
 664 done:
 665         DBG("technology %p", technology);
 666
 667         return technology;
 668 }
 669
 670 static void technology_put(struct connman_technology *technology)
 671 {
 672         DBG("technology %p", technology);
 673
 674         if (__sync_fetch_and_sub(&technology->refcount, 1) != 1)
 675                 return;
 676
 677         if (technology->driver) {
 678                 technology->driver->remove(technology);
 679                 technology->driver = NULL;
 680         }
 681
 682         technology_list = g_slist_remove(technology_list, technology);
 683
 684         technology_removed_signal(technology);
 685
 686         g_dbus_unregister_interface(connection, technology->path,
 687                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 688
 689         g_slist_free(technology->device_list);
 690         g_hash_table_destroy(technology->rfkill_list);
 691
 692         g_free(technology->path);
 693         g_free(technology->regdom);
 694         g_free(technology);
 695 }
 696
 697 void __connman_technology_add_interface(enum connman_service_type type,
 698                                 int index, const char *name, const char *ident)
 699 {
 700         struct connman_technology *technology;
 701
 702         switch (type) {
 703         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 704         case CONNMAN_SERVICE_TYPE_SYSTEM:
 705                 return;
 706         case CONNMAN_SERVICE_TYPE_ETHERNET:
 707         case CONNMAN_SERVICE_TYPE_WIFI:
 708         case CONNMAN_SERVICE_TYPE_WIMAX:
 709         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 710         case CONNMAN_SERVICE_TYPE_CELLULAR:
 711         case CONNMAN_SERVICE_TYPE_GPS:
 712         case CONNMAN_SERVICE_TYPE_VPN:
 713         case CONNMAN_SERVICE_TYPE_GADGET:
 714                 break;
 715         }
 716
 717         connman_info("Create interface %s [ %s ]", name,
 718                                 __connman_service_type2string(type));
 719
 720         technology = technology_get(type);
 721
 722         if (technology == NULL || technology->driver == NULL
 723                         || technology->driver->add_interface == NULL)
 724                 return;
 725
 726         technology->driver->add_interface(technology,
 727                                         index, name, ident);
 728 }
 729
 730 void __connman_technology_remove_interface(enum connman_service_type type,
 731                                 int index, const char *name, const char *ident)
 732 {
 733         struct connman_technology *technology;
 734
 735         switch (type) {
 736         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 737         case CONNMAN_SERVICE_TYPE_SYSTEM:
 738                 return;
 739         case CONNMAN_SERVICE_TYPE_ETHERNET:
 740         case CONNMAN_SERVICE_TYPE_WIFI:
 741         case CONNMAN_SERVICE_TYPE_WIMAX:
 742         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 743         case CONNMAN_SERVICE_TYPE_CELLULAR:
 744         case CONNMAN_SERVICE_TYPE_GPS:
 745         case CONNMAN_SERVICE_TYPE_VPN:
 746         case CONNMAN_SERVICE_TYPE_GADGET:
 747                 break;
 748         }
 749
 750         connman_info("Remove interface %s [ %s ]", name,
 751                                 __connman_service_type2string(type));
 752
 753         technology = technology_find(type);
 754
 755         if (technology == NULL || technology->driver == NULL)
 756                 return;
 757
 758         if (technology->driver->remove_interface)
 759                 technology->driver->remove_interface(technology, index);
 760
 761         technology_put(technology);
 762 }
 763
 764 int __connman_technology_add_device(struct connman_device *device)
 765 {
 766         struct connman_technology *technology;
 767         enum connman_service_type type;
 768
 769         DBG("device %p", device);
 770
 771         type = __connman_device_get_service_type(device);
 772         __connman_notifier_register(type);
 773
 774         technology = technology_get(type);
 775         if (technology == NULL)
 776                 return -ENXIO;
 777
 778         if (technology->enable_persistent && !global_offlinemode)
 779                 __connman_device_enable(device);
 780         /* if technology persistent state is offline */
 781         if (!technology->enable_persistent)
 782                 __connman_device_disable(device);
 783
 784         technology->device_list = g_slist_append(technology->device_list,
 785                                                                 device);
 786
 787         return 0;
 788 }
 789
 790 int __connman_technology_remove_device(struct connman_device *device)
 791 {
 792         struct connman_technology *technology;
 793         enum connman_service_type type;
 794
 795         DBG("device %p", device);
 796
 797         type = __connman_device_get_service_type(device);
 798         __connman_notifier_unregister(type);
 799
 800         technology = technology_find(type);
 801         if (technology == NULL)
 802                 return -ENXIO;
 803
 804         technology->device_list = g_slist_remove(technology->device_list,
 805                                                                 device);
 806         if (technology->device_list == NULL) {
 807                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 808                 state_changed(technology);
 809         }
 810
 811         return 0;
 812 }
 813
 814 static gboolean technology_pending_reply(gpointer user_data)
 815 {
 816         struct connman_technology *technology = user_data;
 817         DBusMessage *reply;
 818
 819         /* Power request timedout, send ETIMEDOUT. */
 820         if (technology->pending_reply != NULL) {
 821                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 822                 if (reply != NULL)
 823                         g_dbus_send_message(connection, reply);
 824
 825                 dbus_message_unref(technology->pending_reply);
 826                 technology->pending_reply = NULL;
 827                 technology->pending_timeout = 0;
 828         }
 829
 830         return FALSE;
 831 }
 832
 833 int __connman_technology_enabled(enum connman_service_type type)
 834 {
 835         struct connman_technology *technology;
 836
 837         technology = technology_find(type);
 838         if (technology == NULL)
 839                 return -ENXIO;
 840
 841         if (__sync_fetch_and_add(&technology->enabled, 1) == 0) {
 842                 __connman_notifier_enable(type);
 843                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 844                 state_changed(technology);
 845         }
 846
 847         if (technology->pending_reply != NULL) {
 848                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 849                 dbus_message_unref(technology->pending_reply);
 850                 g_source_remove(technology->pending_timeout);
 851                 technology->pending_reply = NULL;
 852                 technology->pending_timeout = 0;
 853         }
 854
 855         return 0;
 856 }
 857
 858 int __connman_technology_enable(enum connman_service_type type, DBusMessage *msg)
 859 {
 860         struct connman_technology *technology;
 861         GSList *list;
 862         int err = 0;
 863         int ret = -ENODEV;
 864         DBusMessage *reply;
 865
 866         DBG("type %d enable", type);
 867
 868         technology = technology_find(type);
 869         if (technology == NULL) {
 870                 err = -ENXIO;
 871                 goto done;
 872         }
 873
 874         if (technology->pending_reply != NULL) {
 875                 err = -EBUSY;
 876                 goto done;
 877         }
 878
 879         if (msg != NULL) {
 880                 /*
 881                  * This is a bit of a trick. When msg is not NULL it means
 882                  * thats technology_enable was invoked from the manager API. Hence we save
 883                  * the state here.
 884                  */
 885                 technology->enable_persistent = TRUE;
 886                 save_state(technology);
 887         }
 888
 889         __connman_rfkill_block(technology->type, FALSE);
 890
 891         /*
 892          * An empty device list means that devices in the technology
 893          * were rfkill blocked. The unblock above will enable the devs.
 894          */
 895         if (technology->device_list == NULL) {
 896                 ret = 0;
 897                 goto done;
 898         }
 899
 900         for (list = technology->device_list; list; list = list->next) {
 901                 struct connman_device *device = list->data;
 902
 903                 err = __connman_device_enable(device);
 904                 /*
 905                  * err = 0 : Device was enabled right away.
 906                  * If atleast one device gets enabled, we consider
 907                  * the technology to be enabled.
 908                  */
 909                 if (err == 0)
 910                         ret = 0;
 911         }
 912
 913 done:
 914         if (ret == 0) {
 915                 if (msg != NULL)
 916                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 917                 return ret;
 918         }
 919
 920         if (msg != NULL) {
 921                 if (err == -EINPROGRESS) {
 922                         technology->pending_reply = dbus_message_ref(msg);
 923                         technology->pending_timeout = g_timeout_add_seconds(10,
 924                                         technology_pending_reply, technology);
 925                 } else {
 926                         reply = __connman_error_failed(msg, -err);
 927                         if (reply != NULL)
 928                                 g_dbus_send_message(connection, reply);
 929                 }
 930         }
 931
 932         return err;
 933 }
 934
 935 int __connman_technology_disabled(enum connman_service_type type)
 936 {
 937         struct connman_technology *technology;
 938
 939         technology = technology_find(type);
 940         if (technology == NULL)
 941                 return -ENXIO;
 942
 943         if (technology->pending_reply != NULL) {
 944                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 945                 dbus_message_unref(technology->pending_reply);
 946                 g_source_remove(technology->pending_timeout);
 947                 technology->pending_reply = NULL;
 948                 technology->pending_timeout = 0;
 949         }
 950
 951         if (__sync_fetch_and_sub(&technology->enabled, 1) != 1)
 952                 return 0;
 953
 954         __connman_notifier_disable(type);
 955         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 956         state_changed(technology);
 957
 958         return 0;
 959 }
 960
 961 int __connman_technology_disable(enum connman_service_type type, DBusMessage *msg)
 962 {
 963         struct connman_technology *technology;
 964         GSList *list;
 965         int err = 0;
 966         int ret = -ENODEV;
 967         DBusMessage *reply;
 968
 969         DBG("type %d disable", type);
 970
 971         technology = technology_find(type);
 972         if (technology == NULL) {
 973                 err = -ENXIO;
 974                 goto done;
 975         }
 976
 977         if (technology->pending_reply != NULL) {
 978                 err = -EBUSY;
 979                 goto done;
 980         }
 981
 982         if (technology->tethering == TRUE)
 983                 set_tethering(technology, FALSE);
 984
 985         if (msg != NULL) {
 986                 technology->enable_persistent = FALSE;
 987                 save_state(technology);
 988         }
 989
 990         __connman_rfkill_block(technology->type, TRUE);
 991
 992         for (list = technology->device_list; list; list = list->next) {
 993                 struct connman_device *device = list->data;
 994
 995                 err = __connman_device_disable(device);
 996                 if (err == 0)
 997                         ret = 0;
 998         }
 999
1000 done:
1001         if (ret == 0) {
1002                 if (msg != NULL)
1003                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
1004                 return ret;
1005         }
1006
1007         if (msg != NULL) {
1008                 if (err == -EINPROGRESS) {
1009                         technology->pending_reply = dbus_message_ref(msg);
1010                         technology->pending_timeout = g_timeout_add_seconds(10,
1011                                         technology_pending_reply, technology);
1012                 } else {
1013                         reply = __connman_error_failed(msg, -err);
1014                         if (reply != NULL)
1015                                 g_dbus_send_message(connection, reply);
1016                 }
1017         }
1018
1019         return err;
1020 }
1021
1022 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
1023 {
1024         GSList *list;
1025         int err = -EINVAL;
1026
1027         if (global_offlinemode == offlinemode)
1028                 return 0;
1029
1030         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1031
1032         /*
1033          * This is a bit tricky. When you set offlinemode, there is no
1034          * way to differentiate between attempting offline mode and
1035          * resuming offlinemode from last saved profile. We need that
1036          * information in rfkill_update, otherwise it falls back on the
1037          * technology's persistent state. Hence we set the offline mode here
1038          * but save it & call the notifier only if its successful.
1039          */
1040
1041         global_offlinemode = offlinemode;
1042
1043         /* Traverse technology list, enable/disable each technology. */
1044         for (list = technology_list; list; list = list->next) {
1045                 struct connman_technology *technology = list->data;
1046
1047                 if (offlinemode)
1048                         err = __connman_technology_disable(technology->type, NULL);
1049
1050                 if (!offlinemode && technology->enable_persistent)
1051                         err = __connman_technology_enable(technology->type, NULL);
1052         }
1053
1054         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1055                 connman_technology_save_offlinemode();
1056                 __connman_notifier_offlinemode(offlinemode);
1057         } else
1058                 global_offlinemode = connman_technology_load_offlinemode();
1059
1060         return err;
1061 }
1062
1063 int __connman_technology_add_rfkill(unsigned int index,
1064                                         enum connman_service_type type,
1065                                                 connman_bool_t softblock,
1066                                                 connman_bool_t hardblock)
1067 {
1068         struct connman_technology *technology;
1069         struct connman_rfkill *rfkill;
1070
1071         DBG("index %u type %d soft %u hard %u", index, type,
1072                                                         softblock, hardblock);
1073
1074         technology = technology_get(type);
1075         if (technology == NULL)
1076                 return -ENXIO;
1077
1078         rfkill = g_try_new0(struct connman_rfkill, 1);
1079         if (rfkill == NULL)
1080                 return -ENOMEM;
1081
1082         __connman_notifier_register(type);
1083
1084         rfkill->index = index;
1085         rfkill->type = type;
1086         rfkill->softblock = softblock;
1087         rfkill->hardblock = hardblock;
1088
1089         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
1090
1091         if (hardblock) {
1092                 DBG("%s is switched off.", get_name(type));
1093                 return 0;
1094         }
1095
1096         /*
1097          * If Offline mode is on, we softblock the device if it isnt already.
1098          * If Offline mode is off, we rely on the persistent state of tech.
1099          */
1100         if (global_offlinemode) {
1101                 if (!softblock)
1102                         return __connman_rfkill_block(type, TRUE);
1103         } else {
1104                 if (technology->enable_persistent && softblock)
1105                         return __connman_rfkill_block(type, FALSE);
1106                 /* if technology persistent state is offline */
1107                 if (!technology->enable_persistent && !softblock)
1108                         return __connman_rfkill_block(type, TRUE);
1109         }
1110
1111         return 0;
1112 }
1113
1114 int __connman_technology_update_rfkill(unsigned int index,
1115                                         enum connman_service_type type,
1116                                                 connman_bool_t softblock,
1117                                                 connman_bool_t hardblock)
1118 {
1119         struct connman_technology *technology;
1120         struct connman_rfkill *rfkill;
1121
1122         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1123
1124         technology = technology_find(type);
1125         if (technology == NULL)
1126                 return -ENXIO;
1127
1128         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1129         if (rfkill == NULL)
1130                 return -ENXIO;
1131
1132         if (rfkill->softblock == softblock &&
1133                 rfkill->hardblock == hardblock)
1134                 return 0;
1135
1136         rfkill->softblock = softblock;
1137         rfkill->hardblock = hardblock;
1138
1139         if (hardblock) {
1140                 DBG("%s is switched off.", get_name(type));
1141                 return 0;
1142         }
1143
1144         if (!global_offlinemode) {
1145                 if (technology->enable_persistent && softblock)
1146                         return __connman_rfkill_block(type, FALSE);
1147                 if (!technology->enable_persistent && !softblock)
1148                         return __connman_rfkill_block(type, TRUE);
1149         }
1150
1151         return 0;
1152 }
1153
1154 int __connman_technology_remove_rfkill(unsigned int index,
1155                                         enum connman_service_type type)
1156 {
1157         struct connman_technology *technology;
1158         struct connman_rfkill *rfkill;
1159
1160         DBG("index %u", index);
1161
1162         technology = technology_find(type);
1163         if (technology == NULL)
1164                 return -ENXIO;
1165
1166         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1167         if (rfkill == NULL)
1168                 return -ENXIO;
1169
1170         g_hash_table_remove(technology->rfkill_list, &index);
1171
1172         technology_put(technology);
1173
1174         return 0;
1175 }
1176
1177 int __connman_technology_init(void)
1178 {
1179         DBG("");
1180
1181         connection = connman_dbus_get_connection();
1182
1183         global_offlinemode = connman_technology_load_offlinemode();
1184
1185         return 0;
1186 }
1187
1188 void __connman_technology_cleanup(void)
1189 {
1190         DBG("");
1191
1192         dbus_connection_unref(connection);
1193 }