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                         DBUS_TYPE_INVALID);
 468 }
 469
 470 static DBusMessage *get_properties(DBusConnection *conn,
 471                                         DBusMessage *message, void *user_data)
 472 {
 473         struct connman_technology *technology = user_data;
 474         DBusMessage *reply;
 475         DBusMessageIter iter;
 476
 477         reply = dbus_message_new_method_return(message);
 478         if (reply == NULL)
 479                 return NULL;
 480
 481         dbus_message_iter_init_append(reply, &iter);
 482         append_properties(&iter, technology);
 483
 484         return reply;
 485 }
 486
 487 void __connman_technology_list_struct(DBusMessageIter *array)
 488 {
 489         GSList *list;
 490         DBusMessageIter entry;
 491
 492         for (list = technology_list; list; list = list->next) {
 493                 struct connman_technology *technology = list->data;
 494
 495                 if (technology->path == NULL)
 496                         continue;
 497
 498                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 499                                 NULL, &entry);
 500                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 501                                 &technology->path);
 502                 append_properties(&entry, technology);
 503                 dbus_message_iter_close_container(array, &entry);
 504         }
 505 }
 506
 507 static DBusMessage *set_property(DBusConnection *conn,
 508                                         DBusMessage *msg, void *data)
 509 {
 510         struct connman_technology *technology = data;
 511         DBusMessageIter iter, value;
 512         const char *name;
 513         int type;
 514
 515         DBG("conn %p", conn);
 516
 517         if (dbus_message_iter_init(msg, &iter) == FALSE)
 518                 return __connman_error_invalid_arguments(msg);
 519
 520         dbus_message_iter_get_basic(&iter, &name);
 521         dbus_message_iter_next(&iter);
 522         dbus_message_iter_recurse(&iter, &value);
 523
 524         type = dbus_message_iter_get_arg_type(&value);
 525
 526         DBG("property %s", name);
 527
 528         if (g_str_equal(name, "Tethering") == TRUE) {
 529                 int err;
 530                 connman_bool_t tethering;
 531
 532                 if (type != DBUS_TYPE_BOOLEAN)
 533                         return __connman_error_invalid_arguments(msg);
 534
 535                 dbus_message_iter_get_basic(&value, &tethering);
 536
 537                 if (technology->tethering == tethering)
 538                         return __connman_error_in_progress(msg);
 539
 540                 err = set_tethering(technology, tethering);
 541                 if (err < 0)
 542                         return __connman_error_failed(msg, -err);
 543
 544         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 545                 const char *str;
 546
 547                 dbus_message_iter_get_basic(&value, &str);
 548
 549                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 550                         return __connman_error_not_supported(msg);
 551
 552                 technology->tethering_ident = g_strdup(str);
 553         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 554                 const char *str;
 555
 556                 dbus_message_iter_get_basic(&value, &str);
 557
 558                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 559                         return __connman_error_not_supported(msg);
 560
 561                 if (strlen(str) < 8)
 562                         return __connman_error_invalid_arguments(msg);
 563
 564                 technology->tethering_passphrase = g_strdup(str);
 565         } else
 566                 return __connman_error_invalid_property(msg);
 567
 568         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 569 }
 570
 571 static GDBusMethodTable technology_methods[] = {
 572         { "GetProperties", "",   "a{sv}", get_properties },
 573         { "SetProperty",   "sv", "",      set_property   },
 574         { },
 575 };
 576
 577 static GDBusSignalTable technology_signals[] = {
 578         { "PropertyChanged", "sv" },
 579         { },
 580 };
 581
 582 static struct connman_technology *technology_find(enum connman_service_type type)
 583 {
 584         GSList *list;
 585
 586         DBG("type %d", type);
 587
 588         for (list = technology_list; list; list = list->next) {
 589                 struct connman_technology *technology = list->data;
 590
 591                 if (technology->type == type)
 592                         return technology;
 593         }
 594
 595         return NULL;
 596 }
 597
 598 static struct connman_technology *technology_get(enum connman_service_type type)
 599 {
 600         struct connman_technology *technology;
 601         const char *str;
 602         GSList *list;
 603
 604         DBG("type %d", type);
 605
 606         technology = technology_find(type);
 607         if (technology != NULL) {
 608                 __sync_fetch_and_add(&technology->refcount, 1);
 609                 goto done;
 610         }
 611
 612         str = __connman_service_type2string(type);
 613         if (str == NULL)
 614                 return NULL;
 615
 616         technology = g_try_new0(struct connman_technology, 1);
 617         if (technology == NULL)
 618                 return NULL;
 619
 620         technology->refcount = 1;
 621
 622         technology->type = type;
 623         technology->path = g_strdup_printf("%s/technology/%s",
 624                                                         CONNMAN_PATH, str);
 625
 626         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 627                                                         NULL, free_rfkill);
 628         technology->device_list = NULL;
 629
 630         technology->pending_reply = NULL;
 631         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 632
 633         load_state(technology);
 634
 635         if (g_dbus_register_interface(connection, technology->path,
 636                                         CONNMAN_TECHNOLOGY_INTERFACE,
 637                                         technology_methods, technology_signals,
 638                                         NULL, technology, NULL) == FALSE) {
 639                 connman_error("Failed to register %s", technology->path);
 640                 g_free(technology);
 641                 return NULL;
 642         }
 643
 644         technology_list = g_slist_append(technology_list, technology);
 645
 646         technology_added_signal(technology);
 647
 648         if (technology->driver != NULL)
 649                 goto done;
 650
 651         for (list = driver_list; list; list = list->next) {
 652                 struct connman_technology_driver *driver = list->data;
 653
 654                 DBG("driver %p name %s", driver, driver->name);
 655
 656                 if (driver->type != technology->type)
 657                         continue;
 658
 659                 if (driver->probe(technology) == 0) {
 660                         technology->driver = driver;
 661                         break;
 662                 }
 663         }
 664
 665 done:
 666         DBG("technology %p", technology);
 667
 668         return technology;
 669 }
 670
 671 static void technology_put(struct connman_technology *technology)
 672 {
 673         DBG("technology %p", technology);
 674
 675         if (__sync_fetch_and_sub(&technology->refcount, 1) != 1)
 676                 return;
 677
 678         if (technology->driver) {
 679                 technology->driver->remove(technology);
 680                 technology->driver = NULL;
 681         }
 682
 683         technology_list = g_slist_remove(technology_list, technology);
 684
 685         technology_removed_signal(technology);
 686
 687         g_dbus_unregister_interface(connection, technology->path,
 688                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 689
 690         g_slist_free(technology->device_list);
 691         g_hash_table_destroy(technology->rfkill_list);
 692
 693         g_free(technology->path);
 694         g_free(technology->regdom);
 695         g_free(technology);
 696 }
 697
 698 void __connman_technology_add_interface(enum connman_service_type type,
 699                                 int index, const char *name, const char *ident)
 700 {
 701         struct connman_technology *technology;
 702
 703         switch (type) {
 704         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 705         case CONNMAN_SERVICE_TYPE_SYSTEM:
 706                 return;
 707         case CONNMAN_SERVICE_TYPE_ETHERNET:
 708         case CONNMAN_SERVICE_TYPE_WIFI:
 709         case CONNMAN_SERVICE_TYPE_WIMAX:
 710         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 711         case CONNMAN_SERVICE_TYPE_CELLULAR:
 712         case CONNMAN_SERVICE_TYPE_GPS:
 713         case CONNMAN_SERVICE_TYPE_VPN:
 714         case CONNMAN_SERVICE_TYPE_GADGET:
 715                 break;
 716         }
 717
 718         connman_info("Adding interface %s [ %s ]", name,
 719                                 __connman_service_type2string(type));
 720
 721         technology = technology_find(type);
 722
 723         if (technology == NULL || technology->driver == NULL
 724                         || technology->driver->add_interface == NULL)
 725                 return;
 726
 727         technology->driver->add_interface(technology,
 728                                         index, name, ident);
 729 }
 730
 731 void __connman_technology_remove_interface(enum connman_service_type type,
 732                                 int index, const char *name, const char *ident)
 733 {
 734         struct connman_technology *technology;
 735
 736         switch (type) {
 737         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 738         case CONNMAN_SERVICE_TYPE_SYSTEM:
 739                 return;
 740         case CONNMAN_SERVICE_TYPE_ETHERNET:
 741         case CONNMAN_SERVICE_TYPE_WIFI:
 742         case CONNMAN_SERVICE_TYPE_WIMAX:
 743         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 744         case CONNMAN_SERVICE_TYPE_CELLULAR:
 745         case CONNMAN_SERVICE_TYPE_GPS:
 746         case CONNMAN_SERVICE_TYPE_VPN:
 747         case CONNMAN_SERVICE_TYPE_GADGET:
 748                 break;
 749         }
 750
 751         connman_info("Remove interface %s [ %s ]", name,
 752                                 __connman_service_type2string(type));
 753
 754         technology = technology_find(type);
 755
 756         if (technology == NULL || technology->driver == NULL)
 757                 return;
 758
 759         if (technology->driver->remove_interface)
 760                 technology->driver->remove_interface(technology, index);
 761 }
 762
 763 int __connman_technology_add_device(struct connman_device *device)
 764 {
 765         struct connman_technology *technology;
 766         enum connman_service_type type;
 767
 768         DBG("device %p", device);
 769
 770         type = __connman_device_get_service_type(device);
 771         __connman_notifier_register(type);
 772
 773         technology = technology_get(type);
 774         if (technology == NULL)
 775                 return -ENXIO;
 776
 777         if (technology->enable_persistent && !global_offlinemode)
 778                 __connman_device_enable(device);
 779         /* if technology persistent state is offline */
 780         if (!technology->enable_persistent)
 781                 __connman_device_disable(device);
 782
 783         technology->device_list = g_slist_append(technology->device_list,
 784                                                                 device);
 785
 786         return 0;
 787 }
 788
 789 int __connman_technology_remove_device(struct connman_device *device)
 790 {
 791         struct connman_technology *technology;
 792         enum connman_service_type type;
 793
 794         DBG("device %p", device);
 795
 796         type = __connman_device_get_service_type(device);
 797         __connman_notifier_unregister(type);
 798
 799         technology = technology_find(type);
 800         if (technology == NULL)
 801                 return -ENXIO;
 802
 803         technology->device_list = g_slist_remove(technology->device_list,
 804                                                                 device);
 805         if (technology->device_list == NULL) {
 806                 technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 807                 state_changed(technology);
 808         }
 809
 810         return 0;
 811 }
 812
 813 static gboolean technology_pending_reply(gpointer user_data)
 814 {
 815         struct connman_technology *technology = user_data;
 816         DBusMessage *reply;
 817
 818         /* Power request timedout, send ETIMEDOUT. */
 819         if (technology->pending_reply != NULL) {
 820                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 821                 if (reply != NULL)
 822                         g_dbus_send_message(connection, reply);
 823
 824                 dbus_message_unref(technology->pending_reply);
 825                 technology->pending_reply = NULL;
 826                 technology->pending_timeout = 0;
 827         }
 828
 829         return FALSE;
 830 }
 831
 832 int __connman_technology_enabled(enum connman_service_type type)
 833 {
 834         struct connman_technology *technology;
 835
 836         technology = technology_find(type);
 837         if (technology == NULL)
 838                 return -ENXIO;
 839
 840         if (__sync_fetch_and_add(&technology->enabled, 1) == 0) {
 841                 __connman_notifier_enable(type);
 842                 technology->state = CONNMAN_TECHNOLOGY_STATE_ENABLED;
 843                 state_changed(technology);
 844         }
 845
 846         if (technology->pending_reply != NULL) {
 847                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 848                 dbus_message_unref(technology->pending_reply);
 849                 g_source_remove(technology->pending_timeout);
 850                 technology->pending_reply = NULL;
 851                 technology->pending_timeout = 0;
 852         }
 853
 854         return 0;
 855 }
 856
 857 int __connman_technology_enable(enum connman_service_type type, DBusMessage *msg)
 858 {
 859         struct connman_technology *technology;
 860         GSList *list;
 861         int err = 0;
 862         int ret = -ENODEV;
 863         DBusMessage *reply;
 864
 865         DBG("type %d enable", type);
 866
 867         technology = technology_find(type);
 868         if (technology == NULL) {
 869                 err = -ENXIO;
 870                 goto done;
 871         }
 872
 873         if (technology->pending_reply != NULL) {
 874                 err = -EBUSY;
 875                 goto done;
 876         }
 877
 878         if (msg != NULL) {
 879                 /*
 880                  * This is a bit of a trick. When msg is not NULL it means
 881                  * thats technology_enable was invoked from the manager API. Hence we save
 882                  * the state here.
 883                  */
 884                 technology->enable_persistent = TRUE;
 885                 save_state(technology);
 886         }
 887
 888         __connman_rfkill_block(technology->type, FALSE);
 889
 890         /*
 891          * An empty device list means that devices in the technology
 892          * were rfkill blocked. The unblock above will enable the devs.
 893          */
 894         if (technology->device_list == NULL) {
 895                 ret = 0;
 896                 goto done;
 897         }
 898
 899         for (list = technology->device_list; list; list = list->next) {
 900                 struct connman_device *device = list->data;
 901
 902                 err = __connman_device_enable(device);
 903                 /*
 904                  * err = 0 : Device was enabled right away.
 905                  * If atleast one device gets enabled, we consider
 906                  * the technology to be enabled.
 907                  */
 908                 if (err == 0)
 909                         ret = 0;
 910         }
 911
 912 done:
 913         if (ret == 0) {
 914                 if (msg != NULL)
 915                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 916                 return ret;
 917         }
 918
 919         if (msg != NULL) {
 920                 if (err == -EINPROGRESS) {
 921                         technology->pending_reply = dbus_message_ref(msg);
 922                         technology->pending_timeout = g_timeout_add_seconds(10,
 923                                         technology_pending_reply, technology);
 924                 } else {
 925                         reply = __connman_error_failed(msg, -err);
 926                         if (reply != NULL)
 927                                 g_dbus_send_message(connection, reply);
 928                 }
 929         }
 930
 931         return err;
 932 }
 933
 934 int __connman_technology_disabled(enum connman_service_type type)
 935 {
 936         struct connman_technology *technology;
 937
 938         technology = technology_find(type);
 939         if (technology == NULL)
 940                 return -ENXIO;
 941
 942         if (technology->pending_reply != NULL) {
 943                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 944                 dbus_message_unref(technology->pending_reply);
 945                 g_source_remove(technology->pending_timeout);
 946                 technology->pending_reply = NULL;
 947                 technology->pending_timeout = 0;
 948         }
 949
 950         if (__sync_fetch_and_sub(&technology->enabled, 1) != 1)
 951                 return 0;
 952
 953         __connman_notifier_disable(type);
 954         technology->state = CONNMAN_TECHNOLOGY_STATE_OFFLINE;
 955         state_changed(technology);
 956
 957         return 0;
 958 }
 959
 960 int __connman_technology_disable(enum connman_service_type type, DBusMessage *msg)
 961 {
 962         struct connman_technology *technology;
 963         GSList *list;
 964         int err = 0;
 965         int ret = -ENODEV;
 966         DBusMessage *reply;
 967
 968         DBG("type %d disable", type);
 969
 970         technology = technology_find(type);
 971         if (technology == NULL) {
 972                 err = -ENXIO;
 973                 goto done;
 974         }
 975
 976         if (technology->pending_reply != NULL) {
 977                 err = -EBUSY;
 978                 goto done;
 979         }
 980
 981         if (technology->tethering == TRUE)
 982                 set_tethering(technology, FALSE);
 983
 984         if (msg != NULL) {
 985                 technology->enable_persistent = FALSE;
 986                 save_state(technology);
 987         }
 988
 989         __connman_rfkill_block(technology->type, TRUE);
 990
 991         for (list = technology->device_list; list; list = list->next) {
 992                 struct connman_device *device = list->data;
 993
 994                 err = __connman_device_disable(device);
 995                 if (err == 0)
 996                         ret = 0;
 997         }
 998
 999 done:
1000         if (ret == 0) {
1001                 if (msg != NULL)
1002                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
1003                 return ret;
1004         }
1005
1006         if (msg != NULL) {
1007                 if (err == -EINPROGRESS) {
1008                         technology->pending_reply = dbus_message_ref(msg);
1009                         technology->pending_timeout = g_timeout_add_seconds(10,
1010                                         technology_pending_reply, technology);
1011                 } else {
1012                         reply = __connman_error_failed(msg, -err);
1013                         if (reply != NULL)
1014                                 g_dbus_send_message(connection, reply);
1015                 }
1016         }
1017
1018         return err;
1019 }
1020
1021 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
1022 {
1023         GSList *list;
1024         int err = -EINVAL;
1025
1026         if (global_offlinemode == offlinemode)
1027                 return 0;
1028
1029         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1030
1031         /*
1032          * This is a bit tricky. When you set offlinemode, there is no
1033          * way to differentiate between attempting offline mode and
1034          * resuming offlinemode from last saved profile. We need that
1035          * information in rfkill_update, otherwise it falls back on the
1036          * technology's persistent state. Hence we set the offline mode here
1037          * but save it & call the notifier only if its successful.
1038          */
1039
1040         global_offlinemode = offlinemode;
1041
1042         /* Traverse technology list, enable/disable each technology. */
1043         for (list = technology_list; list; list = list->next) {
1044                 struct connman_technology *technology = list->data;
1045
1046                 if (offlinemode)
1047                         err = __connman_technology_disable(technology->type, NULL);
1048
1049                 if (!offlinemode && technology->enable_persistent)
1050                         err = __connman_technology_enable(technology->type, NULL);
1051         }
1052
1053         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1054                 connman_technology_save_offlinemode();
1055                 __connman_notifier_offlinemode(offlinemode);
1056         } else
1057                 global_offlinemode = connman_technology_load_offlinemode();
1058
1059         return err;
1060 }
1061
1062 int __connman_technology_add_rfkill(unsigned int index,
1063                                         enum connman_service_type type,
1064                                                 connman_bool_t softblock,
1065                                                 connman_bool_t hardblock)
1066 {
1067         struct connman_technology *technology;
1068         struct connman_rfkill *rfkill;
1069
1070         DBG("index %u type %d soft %u hard %u", index, type,
1071                                                         softblock, hardblock);
1072
1073         technology = technology_get(type);
1074         if (technology == NULL)
1075                 return -ENXIO;
1076
1077         rfkill = g_try_new0(struct connman_rfkill, 1);
1078         if (rfkill == NULL)
1079                 return -ENOMEM;
1080
1081         __connman_notifier_register(type);
1082
1083         rfkill->index = index;
1084         rfkill->type = type;
1085         rfkill->softblock = softblock;
1086         rfkill->hardblock = hardblock;
1087
1088         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
1089
1090         if (hardblock) {
1091                 DBG("%s is switched off.", get_name(type));
1092                 return 0;
1093         }
1094
1095         /*
1096          * If Offline mode is on, we softblock the device if it isnt already.
1097          * If Offline mode is off, we rely on the persistent state of tech.
1098          */
1099         if (global_offlinemode) {
1100                 if (!softblock)
1101                         return __connman_rfkill_block(type, TRUE);
1102         } else {
1103                 if (technology->enable_persistent && softblock)
1104                         return __connman_rfkill_block(type, FALSE);
1105                 /* if technology persistent state is offline */
1106                 if (!technology->enable_persistent && !softblock)
1107                         return __connman_rfkill_block(type, TRUE);
1108         }
1109
1110         return 0;
1111 }
1112
1113 int __connman_technology_update_rfkill(unsigned int index,
1114                                         enum connman_service_type type,
1115                                                 connman_bool_t softblock,
1116                                                 connman_bool_t hardblock)
1117 {
1118         struct connman_technology *technology;
1119         struct connman_rfkill *rfkill;
1120
1121         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1122
1123         technology = technology_find(type);
1124         if (technology == NULL)
1125                 return -ENXIO;
1126
1127         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1128         if (rfkill == NULL)
1129                 return -ENXIO;
1130
1131         if (rfkill->softblock == softblock &&
1132                 rfkill->hardblock == hardblock)
1133                 return 0;
1134
1135         rfkill->softblock = softblock;
1136         rfkill->hardblock = hardblock;
1137
1138         if (hardblock) {
1139                 DBG("%s is switched off.", get_name(type));
1140                 return 0;
1141         }
1142
1143         if (!global_offlinemode) {
1144                 if (technology->enable_persistent && softblock)
1145                         return __connman_rfkill_block(type, FALSE);
1146                 if (!technology->enable_persistent && !softblock)
1147                         return __connman_rfkill_block(type, TRUE);
1148         }
1149
1150         return 0;
1151 }
1152
1153 int __connman_technology_remove_rfkill(unsigned int index,
1154                                         enum connman_service_type type)
1155 {
1156         struct connman_technology *technology;
1157         struct connman_rfkill *rfkill;
1158
1159         DBG("index %u", index);
1160
1161         technology = technology_find(type);
1162         if (technology == NULL)
1163                 return -ENXIO;
1164
1165         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1166         if (rfkill == NULL)
1167                 return -ENXIO;
1168
1169         g_hash_table_remove(technology->rfkill_list, &index);
1170
1171         technology_put(technology);
1172
1173         return 0;
1174 }
1175
1176 int __connman_technology_init(void)
1177 {
1178         DBG("");
1179
1180         connection = connman_dbus_get_connection();
1181
1182         global_offlinemode = connman_technology_load_offlinemode();
1183
1184         return 0;
1185 }
1186
1187 void __connman_technology_cleanup(void)
1188 {
1189         DBG("");
1190
1191         dbus_connection_unref(connection);
1192 }