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 struct connman_technology {
  47         int refcount;
  48         enum connman_service_type type;
  49         char *path;
  50         GHashTable *rfkill_list;
  51         GSList *device_list;
  52         int enabled;
  53         char *regdom;
  54         connman_bool_t connected;
  55
  56         connman_bool_t tethering;
  57         char *tethering_ident;
  58         char *tethering_passphrase;
  59
  60         connman_bool_t enable_persistent; /* Save the tech state */
  61
  62         struct connman_technology_driver *driver;
  63         void *driver_data;
  64
  65         DBusMessage *pending_reply;
  66         guint pending_timeout;
  67 };
  68
  69 static GSList *driver_list = NULL;
  70
  71 static gint compare_priority(gconstpointer a, gconstpointer b)
  72 {
  73         const struct connman_technology_driver *driver1 = a;
  74         const struct connman_technology_driver *driver2 = b;
  75
  76         return driver2->priority - driver1->priority;
  77 }
  78
  79 /**
  80  * connman_technology_driver_register:
  81  * @driver: Technology driver definition
  82  *
  83  * Register a new technology driver
  84  *
  85  * Returns: %0 on success
  86  */
  87 int connman_technology_driver_register(struct connman_technology_driver *driver)
  88 {
  89         DBG("Registering %s driver", driver->name);
  90
  91         driver_list = g_slist_insert_sorted(driver_list, driver,
  92                                                         compare_priority);
  93
  94         return 0;
  95 }
  96
  97 /**
  98  * connman_technology_driver_unregister:
  99  * @driver: Technology driver definition
 100  *
 101  * Remove a previously registered technology driver
 102  */
 103 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 104 {
 105         GSList *list;
 106         struct connman_technology *technology;
 107
 108         DBG("Unregistering driver %p name %s", driver, driver->name);
 109
 110         for (list = technology_list; list; list = list->next) {
 111                 technology = list->data;
 112
 113                 if (technology->driver == NULL)
 114                         continue;
 115
 116                 if (technology->type == driver->type) {
 117                         technology->driver->remove(technology);
 118                         technology->driver = NULL;
 119                 }
 120         }
 121
 122         driver_list = g_slist_remove(driver_list, driver);
 123 }
 124
 125 static void tethering_changed(struct connman_technology *technology)
 126 {
 127         connman_bool_t tethering = technology->tethering;
 128
 129         connman_dbus_property_changed_basic(technology->path,
 130                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 131                                                 DBUS_TYPE_BOOLEAN, &tethering);
 132 }
 133
 134 void connman_technology_tethering_notify(struct connman_technology *technology,
 135                                                         connman_bool_t enabled)
 136 {
 137         GSList *list;
 138
 139         DBG("technology %p enabled %u", technology, enabled);
 140
 141         if (technology->tethering == enabled)
 142                 return;
 143
 144         technology->tethering = enabled;
 145
 146         tethering_changed(technology);
 147
 148         if (enabled == TRUE)
 149                 __connman_tethering_set_enabled();
 150         else {
 151                 for (list = technology_list; list; list = list->next) {
 152                         struct connman_technology *other_tech = list->data;
 153                         if (other_tech->tethering == TRUE)
 154                                 break;
 155                 }
 156                 if (list == NULL)
 157                         __connman_tethering_set_disabled();
 158         }
 159 }
 160
 161 static int set_tethering(struct connman_technology *technology,
 162                                 connman_bool_t enabled)
 163 {
 164         const char *ident, *passphrase, *bridge;
 165
 166         ident = technology->tethering_ident;
 167         passphrase = technology->tethering_passphrase;
 168
 169         if (technology->driver == NULL ||
 170                         technology->driver->set_tethering == NULL)
 171                 return -EOPNOTSUPP;
 172
 173         bridge = __connman_tethering_get_bridge();
 174         if (bridge == NULL)
 175                 return -EOPNOTSUPP;
 176
 177         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI &&
 178             (ident == NULL || passphrase == NULL))
 179                 return -EINVAL;
 180
 181         return technology->driver->set_tethering(technology, ident, passphrase,
 182                                                         bridge, enabled);
 183 }
 184
 185 void connman_technology_regdom_notify(struct connman_technology *technology,
 186                                                         const char *alpha2)
 187 {
 188         DBG("");
 189
 190         if (alpha2 == NULL)
 191                 connman_error("Failed to set regulatory domain");
 192         else
 193                 DBG("Regulatory domain set to %s", alpha2);
 194
 195         g_free(technology->regdom);
 196         technology->regdom = g_strdup(alpha2);
 197 }
 198
 199 int connman_technology_set_regdom(const char *alpha2)
 200 {
 201         GSList *list;
 202
 203         for (list = technology_list; list; list = list->next) {
 204                 struct connman_technology *technology = list->data;
 205
 206                 if (technology->driver == NULL)
 207                         continue;
 208
 209                 if (technology->driver->set_regdom)
 210                         technology->driver->set_regdom(technology, alpha2);
 211         }
 212
 213         return 0;
 214 }
 215
 216 static void free_rfkill(gpointer data)
 217 {
 218         struct connman_rfkill *rfkill = data;
 219
 220         g_free(rfkill);
 221 }
 222
 223 static const char *get_name(enum connman_service_type type)
 224 {
 225         switch (type) {
 226         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 227         case CONNMAN_SERVICE_TYPE_SYSTEM:
 228         case CONNMAN_SERVICE_TYPE_GPS:
 229         case CONNMAN_SERVICE_TYPE_VPN:
 230         case CONNMAN_SERVICE_TYPE_GADGET:
 231                 break;
 232         case CONNMAN_SERVICE_TYPE_ETHERNET:
 233                 return "Wired";
 234         case CONNMAN_SERVICE_TYPE_WIFI:
 235                 return "WiFi";
 236         case CONNMAN_SERVICE_TYPE_WIMAX:
 237                 return "WiMAX";
 238         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 239                 return "Bluetooth";
 240         case CONNMAN_SERVICE_TYPE_CELLULAR:
 241                 return "Cellular";
 242         }
 243
 244         return NULL;
 245 }
 246
 247 static void load_state(struct connman_technology *technology)
 248 {
 249         GKeyFile *keyfile;
 250         gchar *identifier;
 251         GError *error = NULL;
 252         connman_bool_t enable;
 253
 254         DBG("technology %p", technology);
 255
 256         keyfile = __connman_storage_load_global();
 257         /* Fallback on disabling technology if file not found. */
 258         if (keyfile == NULL) {
 259                 technology->enable_persistent = FALSE;
 260                 return;
 261         }
 262
 263         identifier = g_strdup_printf("%s", get_name(technology->type));
 264         if (identifier == NULL)
 265                 goto done;
 266
 267         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 268         if (error == NULL)
 269                 technology->enable_persistent = enable;
 270         else {
 271                 technology->enable_persistent = FALSE;
 272                 g_clear_error(&error);
 273         }
 274 done:
 275         g_free(identifier);
 276
 277         g_key_file_free(keyfile);
 278
 279         return;
 280 }
 281
 282 static void save_state(struct connman_technology *technology)
 283 {
 284         GKeyFile *keyfile;
 285         gchar *identifier;
 286
 287         DBG("technology %p", technology);
 288
 289         keyfile = __connman_storage_load_global();
 290         if (keyfile == NULL)
 291                 keyfile = g_key_file_new();
 292
 293         identifier = g_strdup_printf("%s", get_name(technology->type));
 294         if (identifier == NULL)
 295                 goto done;
 296
 297         g_key_file_set_boolean(keyfile, identifier, "Enable",
 298                                 technology->enable_persistent);
 299
 300 done:
 301         g_free(identifier);
 302
 303         __connman_storage_save_global(keyfile);
 304
 305         g_key_file_free(keyfile);
 306
 307         return;
 308 }
 309
 310 connman_bool_t __connman_technology_get_offlinemode(void)
 311 {
 312         return global_offlinemode;
 313 }
 314
 315 static void connman_technology_save_offlinemode()
 316 {
 317         GKeyFile *keyfile;
 318
 319         keyfile = __connman_storage_load_global();
 320         if (keyfile == NULL)
 321                 keyfile = g_key_file_new();
 322
 323         g_key_file_set_boolean(keyfile, "global",
 324                                         "OfflineMode", global_offlinemode);
 325
 326         __connman_storage_save_global(keyfile);
 327
 328         g_key_file_free(keyfile);
 329
 330         return;
 331 }
 332
 333 static connman_bool_t connman_technology_load_offlinemode()
 334 {
 335         GKeyFile *keyfile;
 336         GError *error = NULL;
 337         connman_bool_t offlinemode;
 338
 339         /* If there is a error, we enable offlinemode */
 340         keyfile = __connman_storage_load_global();
 341         if (keyfile == NULL)
 342                 return TRUE;
 343
 344         offlinemode = g_key_file_get_boolean(keyfile, "global",
 345                                                 "OfflineMode", &error);
 346         if (error != NULL) {
 347                 offlinemode = TRUE;
 348                 g_clear_error(&error);
 349         }
 350
 351         g_key_file_free(keyfile);
 352
 353         return offlinemode;
 354 }
 355
 356 static void append_properties(DBusMessageIter *iter,
 357                 struct connman_technology *technology)
 358 {
 359         DBusMessageIter dict;
 360         const char *str;
 361         connman_bool_t powered;
 362
 363         connman_dbus_dict_open(iter, &dict);
 364
 365         str = get_name(technology->type);
 366         if (str != NULL)
 367                 connman_dbus_dict_append_basic(&dict, "Name",
 368                                                 DBUS_TYPE_STRING, &str);
 369
 370         str = __connman_service_type2string(technology->type);
 371         if (str != NULL)
 372                 connman_dbus_dict_append_basic(&dict, "Type",
 373                                                 DBUS_TYPE_STRING, &str);
 374
 375         __sync_synchronize();
 376         if (technology->enabled > 0)
 377                 powered = TRUE;
 378         else
 379                 powered = FALSE;
 380         connman_dbus_dict_append_basic(&dict, "Powered",
 381                                         DBUS_TYPE_BOOLEAN, &powered);
 382
 383         connman_dbus_dict_append_basic(&dict, "Connected",
 384                                         DBUS_TYPE_BOOLEAN,
 385                                         &technology->connected);
 386
 387         connman_dbus_dict_append_basic(&dict, "Tethering",
 388                                         DBUS_TYPE_BOOLEAN,
 389                                         &technology->tethering);
 390
 391         if (technology->tethering_ident != NULL)
 392                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 393                                                 DBUS_TYPE_STRING,
 394                                                 &technology->tethering_ident);
 395
 396         if (technology->tethering_passphrase != NULL)
 397                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 398                                                 DBUS_TYPE_STRING,
 399                                                 &technology->tethering_passphrase);
 400
 401         connman_dbus_dict_close(iter, &dict);
 402 }
 403
 404 static void technology_added_signal(struct connman_technology *technology)
 405 {
 406         DBusMessage *signal;
 407         DBusMessageIter iter;
 408
 409         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 410                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 411         if (signal == NULL)
 412                 return;
 413
 414         dbus_message_iter_init_append(signal, &iter);
 415         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 416                                                         &technology->path);
 417         append_properties(&iter, technology);
 418
 419         dbus_connection_send(connection, signal, NULL);
 420         dbus_message_unref(signal);
 421 }
 422
 423 static void technology_removed_signal(struct connman_technology *technology)
 424 {
 425         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 426                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 427                         DBUS_TYPE_OBJECT_PATH, &technology->path,
 428                         DBUS_TYPE_INVALID);
 429 }
 430
 431 static DBusMessage *get_properties(DBusConnection *conn,
 432                                         DBusMessage *message, void *user_data)
 433 {
 434         struct connman_technology *technology = user_data;
 435         DBusMessage *reply;
 436         DBusMessageIter iter;
 437
 438         reply = dbus_message_new_method_return(message);
 439         if (reply == NULL)
 440                 return NULL;
 441
 442         dbus_message_iter_init_append(reply, &iter);
 443         append_properties(&iter, technology);
 444
 445         return reply;
 446 }
 447
 448 void __connman_technology_list_struct(DBusMessageIter *array)
 449 {
 450         GSList *list;
 451         DBusMessageIter entry;
 452
 453         for (list = technology_list; list; list = list->next) {
 454                 struct connman_technology *technology = list->data;
 455
 456                 if (technology->path == NULL)
 457                         continue;
 458
 459                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 460                                 NULL, &entry);
 461                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 462                                 &technology->path);
 463                 append_properties(&entry, technology);
 464                 dbus_message_iter_close_container(array, &entry);
 465         }
 466 }
 467
 468 static gboolean technology_pending_reply(gpointer user_data)
 469 {
 470         struct connman_technology *technology = user_data;
 471         DBusMessage *reply;
 472
 473         /* Power request timedout, send ETIMEDOUT. */
 474         if (technology->pending_reply != NULL) {
 475                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 476                 if (reply != NULL)
 477                         g_dbus_send_message(connection, reply);
 478
 479                 dbus_message_unref(technology->pending_reply);
 480                 technology->pending_reply = NULL;
 481                 technology->pending_timeout = 0;
 482         }
 483
 484         return FALSE;
 485 }
 486
 487 static int technology_enable(struct connman_technology *technology,
 488                 DBusMessage *msg)
 489 {
 490         GSList *list;
 491         int err = 0;
 492         int ret = -ENODEV;
 493         DBusMessage *reply;
 494
 495         DBG("technology %p enable", technology);
 496
 497         __sync_synchronize();
 498         if (technology->enabled > 0) {
 499                 err = -EALREADY;
 500                 goto done;
 501         }
 502
 503         if (technology->pending_reply != NULL) {
 504                 err = -EBUSY;
 505                 goto done;
 506         }
 507
 508         if (msg != NULL) {
 509                 /*
 510                  * This is a bit of a trick. When msg is not NULL it means
 511                  * thats technology_enable was invoked from the manager API.
 512                  * Hence we save the state here.
 513                  */
 514                 technology->enable_persistent = TRUE;
 515                 save_state(technology);
 516         }
 517
 518         __connman_rfkill_block(technology->type, FALSE);
 519
 520         /*
 521          * An empty device list means that devices in the technology
 522          * were rfkill blocked. The unblock above will enable the devs.
 523          */
 524         if (technology->device_list == NULL) {
 525                 ret = 0;
 526                 goto done;
 527         }
 528
 529         for (list = technology->device_list; list; list = list->next) {
 530                 struct connman_device *device = list->data;
 531
 532                 err = __connman_device_enable(device);
 533                 /*
 534                  * err = 0 : Device was enabled right away.
 535                  * If atleast one device gets enabled, we consider
 536                  * the technology to be enabled.
 537                  */
 538                 if (err == 0)
 539                         ret = 0;
 540         }
 541
 542 done:
 543         if (ret == 0) {
 544                 if (msg != NULL)
 545                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 546                 return ret;
 547         }
 548
 549         if (msg != NULL) {
 550                 if (err == -EINPROGRESS) {
 551                         technology->pending_reply = dbus_message_ref(msg);
 552                         technology->pending_timeout = g_timeout_add_seconds(10,
 553                                         technology_pending_reply, technology);
 554                 } else {
 555                         reply = __connman_error_failed(msg, -err);
 556                         if (reply != NULL)
 557                                 g_dbus_send_message(connection, reply);
 558                 }
 559         }
 560
 561         return err;
 562 }
 563
 564 static int technology_disable(struct connman_technology *technology,
 565                 DBusMessage *msg)
 566 {
 567         GSList *list;
 568         int err = 0;
 569         int ret = -ENODEV;
 570         DBusMessage *reply;
 571
 572         DBG("technology %p disable", technology);
 573
 574         __sync_synchronize();
 575         if (technology->enabled == 0) {
 576                 err = -EALREADY;
 577                 goto done;
 578         }
 579
 580         if (technology->pending_reply != NULL) {
 581                 err = -EBUSY;
 582                 goto done;
 583         }
 584
 585         if (technology->tethering == TRUE)
 586                 set_tethering(technology, FALSE);
 587
 588         if (msg != NULL) {
 589                 technology->enable_persistent = FALSE;
 590                 save_state(technology);
 591         }
 592
 593         __connman_rfkill_block(technology->type, TRUE);
 594
 595         for (list = technology->device_list; list; list = list->next) {
 596                 struct connman_device *device = list->data;
 597
 598                 err = __connman_device_disable(device);
 599                 if (err == 0)
 600                         ret = 0;
 601         }
 602
 603 done:
 604         if (ret == 0) {
 605                 if (msg != NULL)
 606                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 607                 return ret;
 608         }
 609
 610         if (msg != NULL) {
 611                 if (err == -EINPROGRESS) {
 612                         technology->pending_reply = dbus_message_ref(msg);
 613                         technology->pending_timeout = g_timeout_add_seconds(10,
 614                                         technology_pending_reply, technology);
 615                 } else {
 616                         reply = __connman_error_failed(msg, -err);
 617                         if (reply != NULL)
 618                                 g_dbus_send_message(connection, reply);
 619                 }
 620         }
 621
 622         return err;
 623 }
 624
 625 static DBusMessage *set_property(DBusConnection *conn,
 626                                         DBusMessage *msg, void *data)
 627 {
 628         struct connman_technology *technology = data;
 629         DBusMessageIter iter, value;
 630         const char *name;
 631         int type;
 632
 633         DBG("conn %p", conn);
 634
 635         if (dbus_message_iter_init(msg, &iter) == FALSE)
 636                 return __connman_error_invalid_arguments(msg);
 637
 638         dbus_message_iter_get_basic(&iter, &name);
 639         dbus_message_iter_next(&iter);
 640         dbus_message_iter_recurse(&iter, &value);
 641
 642         type = dbus_message_iter_get_arg_type(&value);
 643
 644         DBG("property %s", name);
 645
 646         if (g_str_equal(name, "Tethering") == TRUE) {
 647                 int err;
 648                 connman_bool_t tethering;
 649
 650                 if (type != DBUS_TYPE_BOOLEAN)
 651                         return __connman_error_invalid_arguments(msg);
 652
 653                 dbus_message_iter_get_basic(&value, &tethering);
 654
 655                 if (technology->tethering == tethering)
 656                         return __connman_error_in_progress(msg);
 657
 658                 err = set_tethering(technology, tethering);
 659                 if (err < 0)
 660                         return __connman_error_failed(msg, -err);
 661
 662         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 663                 const char *str;
 664
 665                 dbus_message_iter_get_basic(&value, &str);
 666
 667                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 668                         return __connman_error_not_supported(msg);
 669
 670                 technology->tethering_ident = g_strdup(str);
 671         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 672                 const char *str;
 673
 674                 dbus_message_iter_get_basic(&value, &str);
 675
 676                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 677                         return __connman_error_not_supported(msg);
 678
 679                 if (strlen(str) < 8)
 680                         return __connman_error_invalid_arguments(msg);
 681
 682                 technology->tethering_passphrase = g_strdup(str);
 683         } else if (g_str_equal(name, "Powered") == TRUE) {
 684                 connman_bool_t enable;
 685
 686                 if (type != DBUS_TYPE_BOOLEAN)
 687                         return __connman_error_invalid_arguments(msg);
 688
 689                 dbus_message_iter_get_basic(&value, &enable);
 690                 if (enable == TRUE)
 691                         technology_enable(technology, msg);
 692                 else
 693                         technology_disable(technology, msg);
 694
 695         } else
 696                 return __connman_error_invalid_property(msg);
 697
 698         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 699 }
 700
 701 static GDBusMethodTable technology_methods[] = {
 702         { "GetProperties", "",   "a{sv}", get_properties },
 703         { "SetProperty",   "sv", "",      set_property   },
 704         { },
 705 };
 706
 707 static GDBusSignalTable technology_signals[] = {
 708         { "PropertyChanged", "sv" },
 709         { },
 710 };
 711
 712 static struct connman_technology *technology_find(enum connman_service_type type)
 713 {
 714         GSList *list;
 715
 716         DBG("type %d", type);
 717
 718         for (list = technology_list; list; list = list->next) {
 719                 struct connman_technology *technology = list->data;
 720
 721                 if (technology->type == type)
 722                         return technology;
 723         }
 724
 725         return NULL;
 726 }
 727
 728 static struct connman_technology *technology_get(enum connman_service_type type)
 729 {
 730         struct connman_technology *technology;
 731         struct connman_technology_driver *driver = NULL;
 732         const char *str;
 733         GSList *list;
 734         int err;
 735
 736         DBG("type %d", type);
 737
 738         str = __connman_service_type2string(type);
 739         if (str == NULL)
 740                 return NULL;
 741
 742         technology = technology_find(type);
 743         if (technology != NULL)
 744                 return technology;
 745
 746         /* First check if we have a driver for this technology type */
 747         for (list = driver_list; list; list = list->next) {
 748                 driver = list->data;
 749
 750                 if (driver->type == type)
 751                         break;
 752                 else
 753                         driver = NULL;
 754         }
 755
 756         if (driver == NULL) {
 757                 DBG("No matching driver found for %s.",
 758                                 __connman_service_type2string(type));
 759                 return NULL;
 760         }
 761
 762         technology = g_try_new0(struct connman_technology, 1);
 763         if (technology == NULL)
 764                 return NULL;
 765
 766         technology->refcount = 1;
 767
 768         technology->type = type;
 769         technology->path = g_strdup_printf("%s/technology/%s",
 770                                                         CONNMAN_PATH, str);
 771
 772         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 773                                                         NULL, free_rfkill);
 774         technology->device_list = NULL;
 775
 776         technology->pending_reply = NULL;
 777
 778         load_state(technology);
 779
 780         if (g_dbus_register_interface(connection, technology->path,
 781                                         CONNMAN_TECHNOLOGY_INTERFACE,
 782                                         technology_methods, technology_signals,
 783                                         NULL, technology, NULL) == FALSE) {
 784                 connman_error("Failed to register %s", technology->path);
 785                 g_free(technology);
 786                 return NULL;
 787         }
 788
 789         technology_list = g_slist_append(technology_list, technology);
 790
 791         technology_added_signal(technology);
 792
 793         technology->driver = driver;
 794         err = driver->probe(technology);
 795         if (err != 0)
 796                 DBG("Driver probe failed for technology %p", technology);
 797
 798         DBG("technology %p", technology);
 799
 800         return technology;
 801 }
 802
 803 static void technology_put(struct connman_technology *technology)
 804 {
 805         DBG("technology %p", technology);
 806
 807         if (__sync_fetch_and_sub(&technology->refcount, 1) != 1)
 808                 return;
 809
 810         if (technology->driver) {
 811                 technology->driver->remove(technology);
 812                 technology->driver = NULL;
 813         }
 814
 815         technology_list = g_slist_remove(technology_list, technology);
 816
 817         technology_removed_signal(technology);
 818
 819         g_dbus_unregister_interface(connection, technology->path,
 820                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 821
 822         g_slist_free(technology->device_list);
 823         g_hash_table_destroy(technology->rfkill_list);
 824
 825         g_free(technology->path);
 826         g_free(technology->regdom);
 827         g_free(technology);
 828 }
 829
 830 void __connman_technology_add_interface(enum connman_service_type type,
 831                                 int index, const char *name, const char *ident)
 832 {
 833         struct connman_technology *technology;
 834
 835         switch (type) {
 836         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 837         case CONNMAN_SERVICE_TYPE_SYSTEM:
 838                 return;
 839         case CONNMAN_SERVICE_TYPE_ETHERNET:
 840         case CONNMAN_SERVICE_TYPE_WIFI:
 841         case CONNMAN_SERVICE_TYPE_WIMAX:
 842         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 843         case CONNMAN_SERVICE_TYPE_CELLULAR:
 844         case CONNMAN_SERVICE_TYPE_GPS:
 845         case CONNMAN_SERVICE_TYPE_VPN:
 846         case CONNMAN_SERVICE_TYPE_GADGET:
 847                 break;
 848         }
 849
 850         connman_info("Adding interface %s [ %s ]", name,
 851                                 __connman_service_type2string(type));
 852
 853         technology = technology_find(type);
 854
 855         if (technology == NULL || technology->driver == NULL
 856                         || technology->driver->add_interface == NULL)
 857                 return;
 858
 859         technology->driver->add_interface(technology,
 860                                         index, name, ident);
 861 }
 862
 863 void __connman_technology_remove_interface(enum connman_service_type type,
 864                                 int index, const char *name, const char *ident)
 865 {
 866         struct connman_technology *technology;
 867
 868         switch (type) {
 869         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 870         case CONNMAN_SERVICE_TYPE_SYSTEM:
 871                 return;
 872         case CONNMAN_SERVICE_TYPE_ETHERNET:
 873         case CONNMAN_SERVICE_TYPE_WIFI:
 874         case CONNMAN_SERVICE_TYPE_WIMAX:
 875         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 876         case CONNMAN_SERVICE_TYPE_CELLULAR:
 877         case CONNMAN_SERVICE_TYPE_GPS:
 878         case CONNMAN_SERVICE_TYPE_VPN:
 879         case CONNMAN_SERVICE_TYPE_GADGET:
 880                 break;
 881         }
 882
 883         connman_info("Remove interface %s [ %s ]", name,
 884                                 __connman_service_type2string(type));
 885
 886         technology = technology_find(type);
 887
 888         if (technology == NULL || technology->driver == NULL)
 889                 return;
 890
 891         if (technology->driver->remove_interface)
 892                 technology->driver->remove_interface(technology, index);
 893 }
 894
 895 int __connman_technology_add_device(struct connman_device *device)
 896 {
 897         struct connman_technology *technology;
 898         enum connman_service_type type;
 899
 900         DBG("device %p", device);
 901
 902         type = __connman_device_get_service_type(device);
 903
 904         technology = technology_get(type);
 905         if (technology == NULL)
 906                 return -ENXIO;
 907
 908         if (technology->enable_persistent && !global_offlinemode)
 909                 __connman_device_enable(device);
 910         /* if technology persistent state is offline */
 911         if (!technology->enable_persistent)
 912                 __connman_device_disable(device);
 913
 914         technology->device_list = g_slist_append(technology->device_list,
 915                                                                 device);
 916
 917         return 0;
 918 }
 919
 920 int __connman_technology_remove_device(struct connman_device *device)
 921 {
 922         struct connman_technology *technology;
 923         enum connman_service_type type;
 924
 925         DBG("device %p", device);
 926
 927         type = __connman_device_get_service_type(device);
 928
 929         technology = technology_find(type);
 930         if (technology == NULL)
 931                 return -ENXIO;
 932
 933         technology->device_list = g_slist_remove(technology->device_list,
 934                                                                 device);
 935         return 0;
 936 }
 937
 938 static void powered_changed(struct connman_technology *technology)
 939 {
 940         connman_bool_t powered;
 941
 942         __sync_synchronize();
 943         if (technology->enabled >0)
 944                 powered = TRUE;
 945         else
 946                 powered = FALSE;
 947
 948         connman_dbus_property_changed_basic(technology->path,
 949                         CONNMAN_TECHNOLOGY_INTERFACE, "Powered",
 950                         DBUS_TYPE_BOOLEAN, &powered);
 951 }
 952
 953 int __connman_technology_enabled(enum connman_service_type type)
 954 {
 955         struct connman_technology *technology;
 956
 957         technology = technology_find(type);
 958         if (technology == NULL)
 959                 return -ENXIO;
 960
 961         if (__sync_fetch_and_add(&technology->enabled, 1) == 0)
 962                 powered_changed(technology);
 963
 964         if (technology->pending_reply != NULL) {
 965                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 966                 dbus_message_unref(technology->pending_reply);
 967                 g_source_remove(technology->pending_timeout);
 968                 technology->pending_reply = NULL;
 969                 technology->pending_timeout = 0;
 970         }
 971
 972         return 0;
 973 }
 974
 975 int __connman_technology_disabled(enum connman_service_type type)
 976 {
 977         struct connman_technology *technology;
 978
 979         technology = technology_find(type);
 980         if (technology == NULL)
 981                 return -ENXIO;
 982
 983         if (technology->pending_reply != NULL) {
 984                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
 985                 dbus_message_unref(technology->pending_reply);
 986                 g_source_remove(technology->pending_timeout);
 987                 technology->pending_reply = NULL;
 988                 technology->pending_timeout = 0;
 989         }
 990
 991         if (__sync_fetch_and_sub(&technology->enabled, 1) == 1)
 992                 powered_changed(technology);
 993
 994         return 0;
 995 }
 996
 997 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
 998 {
 999         GSList *list;
1000         int err = -EINVAL;
1001
1002         if (global_offlinemode == offlinemode)
1003                 return 0;
1004
1005         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1006
1007         /*
1008          * This is a bit tricky. When you set offlinemode, there is no
1009          * way to differentiate between attempting offline mode and
1010          * resuming offlinemode from last saved profile. We need that
1011          * information in rfkill_update, otherwise it falls back on the
1012          * technology's persistent state. Hence we set the offline mode here
1013          * but save it & call the notifier only if its successful.
1014          */
1015
1016         global_offlinemode = offlinemode;
1017
1018         /* Traverse technology list, enable/disable each technology. */
1019         for (list = technology_list; list; list = list->next) {
1020                 struct connman_technology *technology = list->data;
1021
1022                 if (offlinemode)
1023                         err = technology_disable(technology, NULL);
1024
1025                 if (!offlinemode && technology->enable_persistent)
1026                         err = technology_enable(technology, NULL);
1027         }
1028
1029         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1030                 connman_technology_save_offlinemode();
1031                 __connman_notifier_offlinemode(offlinemode);
1032         } else
1033                 global_offlinemode = connman_technology_load_offlinemode();
1034
1035         return err;
1036 }
1037
1038 void __connman_technology_set_connected(enum connman_service_type type,
1039                 connman_bool_t connected)
1040 {
1041         struct connman_technology *technology;
1042
1043         technology = technology_find(type);
1044         if (technology == NULL)
1045                 return;
1046
1047         DBG("technology %p connected %d", technology, connected);
1048
1049         technology->connected = connected;
1050
1051         connman_dbus_property_changed_basic(technology->path,
1052                         CONNMAN_TECHNOLOGY_INTERFACE, "Connected",
1053                         DBUS_TYPE_BOOLEAN, &connected);
1054 }
1055
1056 int __connman_technology_add_rfkill(unsigned int index,
1057                                         enum connman_service_type type,
1058                                                 connman_bool_t softblock,
1059                                                 connman_bool_t hardblock)
1060 {
1061         struct connman_technology *technology;
1062         struct connman_rfkill *rfkill;
1063
1064         DBG("index %u type %d soft %u hard %u", index, type,
1065                                                         softblock, hardblock);
1066
1067         technology = technology_get(type);
1068         if (technology == NULL)
1069                 return -ENXIO;
1070
1071         rfkill = g_try_new0(struct connman_rfkill, 1);
1072         if (rfkill == NULL)
1073                 return -ENOMEM;
1074
1075         rfkill->index = index;
1076         rfkill->type = type;
1077         rfkill->softblock = softblock;
1078         rfkill->hardblock = hardblock;
1079
1080         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
1081
1082         if (hardblock) {
1083                 DBG("%s is switched off.", get_name(type));
1084                 return 0;
1085         }
1086
1087         /*
1088          * If Offline mode is on, we softblock the device if it isnt already.
1089          * If Offline mode is off, we rely on the persistent state of tech.
1090          */
1091         if (global_offlinemode) {
1092                 if (!softblock)
1093                         return __connman_rfkill_block(type, TRUE);
1094         } else {
1095                 if (technology->enable_persistent && softblock)
1096                         return __connman_rfkill_block(type, FALSE);
1097                 /* if technology persistent state is offline */
1098                 if (!technology->enable_persistent && !softblock)
1099                         return __connman_rfkill_block(type, TRUE);
1100         }
1101
1102         return 0;
1103 }
1104
1105 int __connman_technology_update_rfkill(unsigned int index,
1106                                         enum connman_service_type type,
1107                                                 connman_bool_t softblock,
1108                                                 connman_bool_t hardblock)
1109 {
1110         struct connman_technology *technology;
1111         struct connman_rfkill *rfkill;
1112
1113         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1114
1115         technology = technology_find(type);
1116         if (technology == NULL)
1117                 return -ENXIO;
1118
1119         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1120         if (rfkill == NULL)
1121                 return -ENXIO;
1122
1123         if (rfkill->softblock == softblock &&
1124                 rfkill->hardblock == hardblock)
1125                 return 0;
1126
1127         rfkill->softblock = softblock;
1128         rfkill->hardblock = hardblock;
1129
1130         if (hardblock) {
1131                 DBG("%s is switched off.", get_name(type));
1132                 return 0;
1133         }
1134
1135         if (!global_offlinemode) {
1136                 if (technology->enable_persistent && softblock)
1137                         return __connman_rfkill_block(type, FALSE);
1138                 if (!technology->enable_persistent && !softblock)
1139                         return __connman_rfkill_block(type, TRUE);
1140         }
1141
1142         return 0;
1143 }
1144
1145 int __connman_technology_remove_rfkill(unsigned int index,
1146                                         enum connman_service_type type)
1147 {
1148         struct connman_technology *technology;
1149         struct connman_rfkill *rfkill;
1150
1151         DBG("index %u", index);
1152
1153         technology = technology_find(type);
1154         if (technology == NULL)
1155                 return -ENXIO;
1156
1157         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1158         if (rfkill == NULL)
1159                 return -ENXIO;
1160
1161         g_hash_table_remove(technology->rfkill_list, &index);
1162
1163         technology_put(technology);
1164
1165         return 0;
1166 }
1167
1168 int __connman_technology_init(void)
1169 {
1170         DBG("");
1171
1172         connection = connman_dbus_get_connection();
1173
1174         global_offlinemode = connman_technology_load_offlinemode();
1175
1176         return 0;
1177 }
1178
1179 void __connman_technology_cleanup(void)
1180 {
1181         DBG("");
1182
1183         dbus_connection_unref(connection);
1184 }