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 /*
  38  * List of devices with no technology associated with them either because of
  39  * no compiled in support or the driver is not yet loaded.
  40 */
  41 static GSList *techless_device_list = NULL;
  42
  43 static connman_bool_t global_offlinemode;
  44
  45 struct connman_rfkill {
  46         unsigned int index;
  47         enum connman_service_type type;
  48         connman_bool_t softblock;
  49         connman_bool_t hardblock;
  50 };
  51
  52 struct connman_technology {
  53         int refcount;
  54         enum connman_service_type type;
  55         char *path;
  56         GHashTable *rfkill_list;
  57         GSList *device_list;
  58         int enabled;
  59         char *regdom;
  60         connman_bool_t connected;
  61
  62         connman_bool_t tethering;
  63         char *tethering_ident;
  64         char *tethering_passphrase;
  65
  66         connman_bool_t enable_persistent; /* Save the tech state */
  67
  68         struct connman_technology_driver *driver;
  69         void *driver_data;
  70
  71         DBusMessage *pending_reply;
  72         guint pending_timeout;
  73 };
  74
  75 static GSList *driver_list = NULL;
  76
  77 static gint compare_priority(gconstpointer a, gconstpointer b)
  78 {
  79         const struct connman_technology_driver *driver1 = a;
  80         const struct connman_technology_driver *driver2 = b;
  81
  82         return driver2->priority - driver1->priority;
  83 }
  84
  85 /**
  86  * connman_technology_driver_register:
  87  * @driver: Technology driver definition
  88  *
  89  * Register a new technology driver
  90  *
  91  * Returns: %0 on success
  92  */
  93 int connman_technology_driver_register(struct connman_technology_driver *driver)
  94 {
  95         GSList *list;
  96         struct connman_device *device;
  97         enum connman_service_type type;
  98
  99         DBG("Registering %s driver", driver->name);
 100
 101         driver_list = g_slist_insert_sorted(driver_list, driver,
 102                                                         compare_priority);
 103
 104         if (techless_device_list == NULL)
 105                 return 0;
 106
 107         /*
 108          * Check for technology less devices if this driver
 109          * can service any of them.
 110         */
 111         for (list = techless_device_list; list; list = list->next) {
 112                 device = list->data;
 113
 114                 type = __connman_device_get_service_type(device);
 115                 if (type != driver->type)
 116                         continue;
 117
 118                 techless_device_list = g_slist_remove(techless_device_list,
 119                                                                 device);
 120
 121                 __connman_technology_add_device(device);
 122         }
 123
 124         return 0;
 125 }
 126
 127 /**
 128  * connman_technology_driver_unregister:
 129  * @driver: Technology driver definition
 130  *
 131  * Remove a previously registered technology driver
 132  */
 133 void connman_technology_driver_unregister(struct connman_technology_driver *driver)
 134 {
 135         GSList *list;
 136         struct connman_technology *technology;
 137
 138         DBG("Unregistering driver %p name %s", driver, driver->name);
 139
 140         for (list = technology_list; list; list = list->next) {
 141                 technology = list->data;
 142
 143                 if (technology->driver == NULL)
 144                         continue;
 145
 146                 if (technology->type == driver->type) {
 147                         technology->driver->remove(technology);
 148                         technology->driver = NULL;
 149                 }
 150         }
 151
 152         driver_list = g_slist_remove(driver_list, driver);
 153 }
 154
 155 static void tethering_changed(struct connman_technology *technology)
 156 {
 157         connman_bool_t tethering = technology->tethering;
 158
 159         connman_dbus_property_changed_basic(technology->path,
 160                                 CONNMAN_TECHNOLOGY_INTERFACE, "Tethering",
 161                                                 DBUS_TYPE_BOOLEAN, &tethering);
 162 }
 163
 164 void connman_technology_tethering_notify(struct connman_technology *technology,
 165                                                         connman_bool_t enabled)
 166 {
 167         GSList *list;
 168
 169         DBG("technology %p enabled %u", technology, enabled);
 170
 171         if (technology->tethering == enabled)
 172                 return;
 173
 174         technology->tethering = enabled;
 175
 176         tethering_changed(technology);
 177
 178         if (enabled == TRUE)
 179                 __connman_tethering_set_enabled();
 180         else {
 181                 for (list = technology_list; list; list = list->next) {
 182                         struct connman_technology *other_tech = list->data;
 183                         if (other_tech->tethering == TRUE)
 184                                 break;
 185                 }
 186                 if (list == NULL)
 187                         __connman_tethering_set_disabled();
 188         }
 189 }
 190
 191 static int set_tethering(struct connman_technology *technology,
 192                                 connman_bool_t enabled)
 193 {
 194         const char *ident, *passphrase, *bridge;
 195
 196         ident = technology->tethering_ident;
 197         passphrase = technology->tethering_passphrase;
 198
 199         if (technology->driver == NULL ||
 200                         technology->driver->set_tethering == NULL)
 201                 return -EOPNOTSUPP;
 202
 203         bridge = __connman_tethering_get_bridge();
 204         if (bridge == NULL)
 205                 return -EOPNOTSUPP;
 206
 207         if (technology->type == CONNMAN_SERVICE_TYPE_WIFI &&
 208             (ident == NULL || passphrase == NULL))
 209                 return -EINVAL;
 210
 211         return technology->driver->set_tethering(technology, ident, passphrase,
 212                                                         bridge, enabled);
 213 }
 214
 215 void connman_technology_regdom_notify(struct connman_technology *technology,
 216                                                         const char *alpha2)
 217 {
 218         DBG("");
 219
 220         if (alpha2 == NULL)
 221                 connman_error("Failed to set regulatory domain");
 222         else
 223                 DBG("Regulatory domain set to %s", alpha2);
 224
 225         g_free(technology->regdom);
 226         technology->regdom = g_strdup(alpha2);
 227 }
 228
 229 int connman_technology_set_regdom(const char *alpha2)
 230 {
 231         GSList *list;
 232
 233         for (list = technology_list; list; list = list->next) {
 234                 struct connman_technology *technology = list->data;
 235
 236                 if (technology->driver == NULL)
 237                         continue;
 238
 239                 if (technology->driver->set_regdom)
 240                         technology->driver->set_regdom(technology, alpha2);
 241         }
 242
 243         return 0;
 244 }
 245
 246 static void free_rfkill(gpointer data)
 247 {
 248         struct connman_rfkill *rfkill = data;
 249
 250         g_free(rfkill);
 251 }
 252
 253 static const char *get_name(enum connman_service_type type)
 254 {
 255         switch (type) {
 256         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 257         case CONNMAN_SERVICE_TYPE_SYSTEM:
 258         case CONNMAN_SERVICE_TYPE_GPS:
 259         case CONNMAN_SERVICE_TYPE_VPN:
 260         case CONNMAN_SERVICE_TYPE_GADGET:
 261                 break;
 262         case CONNMAN_SERVICE_TYPE_ETHERNET:
 263                 return "Wired";
 264         case CONNMAN_SERVICE_TYPE_WIFI:
 265                 return "WiFi";
 266         case CONNMAN_SERVICE_TYPE_WIMAX:
 267                 return "WiMAX";
 268         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 269                 return "Bluetooth";
 270         case CONNMAN_SERVICE_TYPE_CELLULAR:
 271                 return "Cellular";
 272         }
 273
 274         return NULL;
 275 }
 276
 277 static void load_state(struct connman_technology *technology)
 278 {
 279         GKeyFile *keyfile;
 280         gchar *identifier;
 281         GError *error = NULL;
 282         connman_bool_t enable;
 283
 284         DBG("technology %p", technology);
 285
 286         keyfile = __connman_storage_load_global();
 287         /* Fallback on disabling technology if file not found. */
 288         if (keyfile == NULL) {
 289                 technology->enable_persistent = FALSE;
 290                 return;
 291         }
 292
 293         identifier = g_strdup_printf("%s", get_name(technology->type));
 294         if (identifier == NULL)
 295                 goto done;
 296
 297         enable = g_key_file_get_boolean(keyfile, identifier, "Enable", &error);
 298         if (error == NULL)
 299                 technology->enable_persistent = enable;
 300         else {
 301                 technology->enable_persistent = FALSE;
 302                 g_clear_error(&error);
 303         }
 304 done:
 305         g_free(identifier);
 306
 307         g_key_file_free(keyfile);
 308
 309         return;
 310 }
 311
 312 static void save_state(struct connman_technology *technology)
 313 {
 314         GKeyFile *keyfile;
 315         gchar *identifier;
 316
 317         DBG("technology %p", technology);
 318
 319         keyfile = __connman_storage_load_global();
 320         if (keyfile == NULL)
 321                 keyfile = g_key_file_new();
 322
 323         identifier = g_strdup_printf("%s", get_name(technology->type));
 324         if (identifier == NULL)
 325                 goto done;
 326
 327         g_key_file_set_boolean(keyfile, identifier, "Enable",
 328                                 technology->enable_persistent);
 329
 330 done:
 331         g_free(identifier);
 332
 333         __connman_storage_save_global(keyfile);
 334
 335         g_key_file_free(keyfile);
 336
 337         return;
 338 }
 339
 340 connman_bool_t __connman_technology_get_offlinemode(void)
 341 {
 342         return global_offlinemode;
 343 }
 344
 345 static void connman_technology_save_offlinemode()
 346 {
 347         GKeyFile *keyfile;
 348
 349         keyfile = __connman_storage_load_global();
 350         if (keyfile == NULL)
 351                 keyfile = g_key_file_new();
 352
 353         g_key_file_set_boolean(keyfile, "global",
 354                                         "OfflineMode", global_offlinemode);
 355
 356         __connman_storage_save_global(keyfile);
 357
 358         g_key_file_free(keyfile);
 359
 360         return;
 361 }
 362
 363 static connman_bool_t connman_technology_load_offlinemode()
 364 {
 365         GKeyFile *keyfile;
 366         GError *error = NULL;
 367         connman_bool_t offlinemode;
 368
 369         /* If there is a error, we enable offlinemode */
 370         keyfile = __connman_storage_load_global();
 371         if (keyfile == NULL)
 372                 return TRUE;
 373
 374         offlinemode = g_key_file_get_boolean(keyfile, "global",
 375                                                 "OfflineMode", &error);
 376         if (error != NULL) {
 377                 offlinemode = TRUE;
 378                 g_clear_error(&error);
 379         }
 380
 381         g_key_file_free(keyfile);
 382
 383         return offlinemode;
 384 }
 385
 386 static void append_properties(DBusMessageIter *iter,
 387                 struct connman_technology *technology)
 388 {
 389         DBusMessageIter dict;
 390         const char *str;
 391         connman_bool_t powered;
 392
 393         connman_dbus_dict_open(iter, &dict);
 394
 395         str = get_name(technology->type);
 396         if (str != NULL)
 397                 connman_dbus_dict_append_basic(&dict, "Name",
 398                                                 DBUS_TYPE_STRING, &str);
 399
 400         str = __connman_service_type2string(technology->type);
 401         if (str != NULL)
 402                 connman_dbus_dict_append_basic(&dict, "Type",
 403                                                 DBUS_TYPE_STRING, &str);
 404
 405         __sync_synchronize();
 406         if (technology->enabled > 0)
 407                 powered = TRUE;
 408         else
 409                 powered = FALSE;
 410         connman_dbus_dict_append_basic(&dict, "Powered",
 411                                         DBUS_TYPE_BOOLEAN, &powered);
 412
 413         connman_dbus_dict_append_basic(&dict, "Connected",
 414                                         DBUS_TYPE_BOOLEAN,
 415                                         &technology->connected);
 416
 417         connman_dbus_dict_append_basic(&dict, "Tethering",
 418                                         DBUS_TYPE_BOOLEAN,
 419                                         &technology->tethering);
 420
 421         if (technology->tethering_ident != NULL)
 422                 connman_dbus_dict_append_basic(&dict, "TetheringIdentifier",
 423                                                 DBUS_TYPE_STRING,
 424                                                 &technology->tethering_ident);
 425
 426         if (technology->tethering_passphrase != NULL)
 427                 connman_dbus_dict_append_basic(&dict, "TetheringPassphrase",
 428                                                 DBUS_TYPE_STRING,
 429                                                 &technology->tethering_passphrase);
 430
 431         connman_dbus_dict_close(iter, &dict);
 432 }
 433
 434 static void technology_added_signal(struct connman_technology *technology)
 435 {
 436         DBusMessage *signal;
 437         DBusMessageIter iter;
 438
 439         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 440                         CONNMAN_MANAGER_INTERFACE, "TechnologyAdded");
 441         if (signal == NULL)
 442                 return;
 443
 444         dbus_message_iter_init_append(signal, &iter);
 445         dbus_message_iter_append_basic(&iter, DBUS_TYPE_OBJECT_PATH,
 446                                                         &technology->path);
 447         append_properties(&iter, technology);
 448
 449         dbus_connection_send(connection, signal, NULL);
 450         dbus_message_unref(signal);
 451 }
 452
 453 static void technology_removed_signal(struct connman_technology *technology)
 454 {
 455         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 456                         CONNMAN_MANAGER_INTERFACE, "TechnologyRemoved",
 457                         DBUS_TYPE_OBJECT_PATH, &technology->path,
 458                         DBUS_TYPE_INVALID);
 459 }
 460
 461 static DBusMessage *get_properties(DBusConnection *conn,
 462                                         DBusMessage *message, void *user_data)
 463 {
 464         struct connman_technology *technology = user_data;
 465         DBusMessage *reply;
 466         DBusMessageIter iter;
 467
 468         reply = dbus_message_new_method_return(message);
 469         if (reply == NULL)
 470                 return NULL;
 471
 472         dbus_message_iter_init_append(reply, &iter);
 473         append_properties(&iter, technology);
 474
 475         return reply;
 476 }
 477
 478 void __connman_technology_list_struct(DBusMessageIter *array)
 479 {
 480         GSList *list;
 481         DBusMessageIter entry;
 482
 483         for (list = technology_list; list; list = list->next) {
 484                 struct connman_technology *technology = list->data;
 485
 486                 if (technology->path == NULL)
 487                         continue;
 488
 489                 dbus_message_iter_open_container(array, DBUS_TYPE_STRUCT,
 490                                 NULL, &entry);
 491                 dbus_message_iter_append_basic(&entry, DBUS_TYPE_OBJECT_PATH,
 492                                 &technology->path);
 493                 append_properties(&entry, technology);
 494                 dbus_message_iter_close_container(array, &entry);
 495         }
 496 }
 497
 498 static gboolean technology_pending_reply(gpointer user_data)
 499 {
 500         struct connman_technology *technology = user_data;
 501         DBusMessage *reply;
 502
 503         /* Power request timedout, send ETIMEDOUT. */
 504         if (technology->pending_reply != NULL) {
 505                 reply = __connman_error_failed(technology->pending_reply, ETIMEDOUT);
 506                 if (reply != NULL)
 507                         g_dbus_send_message(connection, reply);
 508
 509                 dbus_message_unref(technology->pending_reply);
 510                 technology->pending_reply = NULL;
 511                 technology->pending_timeout = 0;
 512         }
 513
 514         return FALSE;
 515 }
 516
 517 static int technology_enable(struct connman_technology *technology,
 518                 DBusMessage *msg)
 519 {
 520         GSList *list;
 521         int err = 0;
 522         int ret = -ENODEV;
 523         DBusMessage *reply;
 524
 525         DBG("technology %p enable", technology);
 526
 527         __sync_synchronize();
 528         if (technology->enabled > 0) {
 529                 err = -EALREADY;
 530                 goto done;
 531         }
 532
 533         if (technology->pending_reply != NULL) {
 534                 err = -EBUSY;
 535                 goto done;
 536         }
 537
 538         if (msg != NULL) {
 539                 /*
 540                  * This is a bit of a trick. When msg is not NULL it means
 541                  * thats technology_enable was invoked from the manager API.
 542                  * Hence we save the state here.
 543                  */
 544                 technology->enable_persistent = TRUE;
 545                 save_state(technology);
 546         }
 547
 548         __connman_rfkill_block(technology->type, FALSE);
 549
 550         /*
 551          * An empty device list means that devices in the technology
 552          * were rfkill blocked. The unblock above will enable the devs.
 553          */
 554         if (technology->device_list == NULL) {
 555                 ret = 0;
 556                 goto done;
 557         }
 558
 559         for (list = technology->device_list; list; list = list->next) {
 560                 struct connman_device *device = list->data;
 561
 562                 err = __connman_device_enable(device);
 563                 /*
 564                  * err = 0 : Device was enabled right away.
 565                  * If atleast one device gets enabled, we consider
 566                  * the technology to be enabled.
 567                  */
 568                 if (err == 0)
 569                         ret = 0;
 570         }
 571
 572 done:
 573         if (ret == 0) {
 574                 if (msg != NULL)
 575                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 576                 return ret;
 577         }
 578
 579         if (msg != NULL) {
 580                 if (err == -EINPROGRESS) {
 581                         technology->pending_reply = dbus_message_ref(msg);
 582                         technology->pending_timeout = g_timeout_add_seconds(10,
 583                                         technology_pending_reply, technology);
 584                 } else {
 585                         reply = __connman_error_failed(msg, -err);
 586                         if (reply != NULL)
 587                                 g_dbus_send_message(connection, reply);
 588                 }
 589         }
 590
 591         return err;
 592 }
 593
 594 static int technology_disable(struct connman_technology *technology,
 595                 DBusMessage *msg)
 596 {
 597         GSList *list;
 598         int err = 0;
 599         int ret = -ENODEV;
 600         DBusMessage *reply;
 601
 602         DBG("technology %p disable", technology);
 603
 604         __sync_synchronize();
 605         if (technology->enabled == 0) {
 606                 err = -EALREADY;
 607                 goto done;
 608         }
 609
 610         if (technology->pending_reply != NULL) {
 611                 err = -EBUSY;
 612                 goto done;
 613         }
 614
 615         if (technology->tethering == TRUE)
 616                 set_tethering(technology, FALSE);
 617
 618         if (msg != NULL) {
 619                 technology->enable_persistent = FALSE;
 620                 save_state(technology);
 621         }
 622
 623         __connman_rfkill_block(technology->type, TRUE);
 624
 625         for (list = technology->device_list; list; list = list->next) {
 626                 struct connman_device *device = list->data;
 627
 628                 err = __connman_device_disable(device);
 629                 if (err == 0)
 630                         ret = 0;
 631         }
 632
 633 done:
 634         if (ret == 0) {
 635                 if (msg != NULL)
 636                         g_dbus_send_reply(connection, msg, DBUS_TYPE_INVALID);
 637                 return ret;
 638         }
 639
 640         if (msg != NULL) {
 641                 if (err == -EINPROGRESS) {
 642                         technology->pending_reply = dbus_message_ref(msg);
 643                         technology->pending_timeout = g_timeout_add_seconds(10,
 644                                         technology_pending_reply, technology);
 645                 } else {
 646                         reply = __connman_error_failed(msg, -err);
 647                         if (reply != NULL)
 648                                 g_dbus_send_message(connection, reply);
 649                 }
 650         }
 651
 652         return err;
 653 }
 654
 655 static DBusMessage *set_property(DBusConnection *conn,
 656                                         DBusMessage *msg, void *data)
 657 {
 658         struct connman_technology *technology = data;
 659         DBusMessageIter iter, value;
 660         const char *name;
 661         int type;
 662
 663         DBG("conn %p", conn);
 664
 665         if (dbus_message_iter_init(msg, &iter) == FALSE)
 666                 return __connman_error_invalid_arguments(msg);
 667
 668         dbus_message_iter_get_basic(&iter, &name);
 669         dbus_message_iter_next(&iter);
 670         dbus_message_iter_recurse(&iter, &value);
 671
 672         type = dbus_message_iter_get_arg_type(&value);
 673
 674         DBG("property %s", name);
 675
 676         if (g_str_equal(name, "Tethering") == TRUE) {
 677                 int err;
 678                 connman_bool_t tethering;
 679
 680                 if (type != DBUS_TYPE_BOOLEAN)
 681                         return __connman_error_invalid_arguments(msg);
 682
 683                 dbus_message_iter_get_basic(&value, &tethering);
 684
 685                 if (technology->tethering == tethering)
 686                         return __connman_error_in_progress(msg);
 687
 688                 err = set_tethering(technology, tethering);
 689                 if (err < 0)
 690                         return __connman_error_failed(msg, -err);
 691
 692         } else if (g_str_equal(name, "TetheringIdentifier") == TRUE) {
 693                 const char *str;
 694
 695                 dbus_message_iter_get_basic(&value, &str);
 696
 697                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 698                         return __connman_error_not_supported(msg);
 699
 700                 technology->tethering_ident = g_strdup(str);
 701         } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
 702                 const char *str;
 703
 704                 dbus_message_iter_get_basic(&value, &str);
 705
 706                 if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
 707                         return __connman_error_not_supported(msg);
 708
 709                 if (strlen(str) < 8)
 710                         return __connman_error_invalid_arguments(msg);
 711
 712                 technology->tethering_passphrase = g_strdup(str);
 713         } else if (g_str_equal(name, "Powered") == TRUE) {
 714                 connman_bool_t enable;
 715
 716                 if (type != DBUS_TYPE_BOOLEAN)
 717                         return __connman_error_invalid_arguments(msg);
 718
 719                 dbus_message_iter_get_basic(&value, &enable);
 720                 if (enable == TRUE)
 721                         technology_enable(technology, msg);
 722                 else
 723                         technology_disable(technology, msg);
 724
 725         } else
 726                 return __connman_error_invalid_property(msg);
 727
 728         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 729 }
 730
 731 static GDBusMethodTable technology_methods[] = {
 732         { "GetProperties", "",   "a{sv}", get_properties },
 733         { "SetProperty",   "sv", "",      set_property   },
 734         { },
 735 };
 736
 737 static GDBusSignalTable technology_signals[] = {
 738         { "PropertyChanged", "sv" },
 739         { },
 740 };
 741
 742 static struct connman_technology *technology_find(enum connman_service_type type)
 743 {
 744         GSList *list;
 745
 746         DBG("type %d", type);
 747
 748         for (list = technology_list; list; list = list->next) {
 749                 struct connman_technology *technology = list->data;
 750
 751                 if (technology->type == type)
 752                         return technology;
 753         }
 754
 755         return NULL;
 756 }
 757
 758 static struct connman_technology *technology_get(enum connman_service_type type)
 759 {
 760         struct connman_technology *technology;
 761         struct connman_technology_driver *driver = NULL;
 762         const char *str;
 763         GSList *list;
 764         int err;
 765
 766         DBG("type %d", type);
 767
 768         str = __connman_service_type2string(type);
 769         if (str == NULL)
 770                 return NULL;
 771
 772         technology = technology_find(type);
 773         if (technology != NULL)
 774                 return technology;
 775
 776         /* First check if we have a driver for this technology type */
 777         for (list = driver_list; list; list = list->next) {
 778                 driver = list->data;
 779
 780                 if (driver->type == type)
 781                         break;
 782                 else
 783                         driver = NULL;
 784         }
 785
 786         if (driver == NULL) {
 787                 DBG("No matching driver found for %s.",
 788                                 __connman_service_type2string(type));
 789                 return NULL;
 790         }
 791
 792         technology = g_try_new0(struct connman_technology, 1);
 793         if (technology == NULL)
 794                 return NULL;
 795
 796         technology->refcount = 1;
 797
 798         technology->type = type;
 799         technology->path = g_strdup_printf("%s/technology/%s",
 800                                                         CONNMAN_PATH, str);
 801
 802         technology->rfkill_list = g_hash_table_new_full(g_int_hash, g_int_equal,
 803                                                         NULL, free_rfkill);
 804         technology->device_list = NULL;
 805
 806         technology->pending_reply = NULL;
 807
 808         load_state(technology);
 809
 810         if (g_dbus_register_interface(connection, technology->path,
 811                                         CONNMAN_TECHNOLOGY_INTERFACE,
 812                                         technology_methods, technology_signals,
 813                                         NULL, technology, NULL) == FALSE) {
 814                 connman_error("Failed to register %s", technology->path);
 815                 g_free(technology);
 816                 return NULL;
 817         }
 818
 819         technology_list = g_slist_append(technology_list, technology);
 820
 821         technology_added_signal(technology);
 822
 823         technology->driver = driver;
 824         err = driver->probe(technology);
 825         if (err != 0)
 826                 DBG("Driver probe failed for technology %p", technology);
 827
 828         DBG("technology %p", technology);
 829
 830         return technology;
 831 }
 832
 833 static void technology_put(struct connman_technology *technology)
 834 {
 835         DBG("technology %p", technology);
 836
 837         if (__sync_fetch_and_sub(&technology->refcount, 1) != 1)
 838                 return;
 839
 840         if (technology->driver) {
 841                 technology->driver->remove(technology);
 842                 technology->driver = NULL;
 843         }
 844
 845         technology_list = g_slist_remove(technology_list, technology);
 846
 847         technology_removed_signal(technology);
 848
 849         g_dbus_unregister_interface(connection, technology->path,
 850                                                 CONNMAN_TECHNOLOGY_INTERFACE);
 851
 852         g_slist_free(technology->device_list);
 853         g_hash_table_destroy(technology->rfkill_list);
 854
 855         g_free(technology->path);
 856         g_free(technology->regdom);
 857         g_free(technology);
 858 }
 859
 860 void __connman_technology_add_interface(enum connman_service_type type,
 861                                 int index, const char *name, const char *ident)
 862 {
 863         struct connman_technology *technology;
 864
 865         switch (type) {
 866         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 867         case CONNMAN_SERVICE_TYPE_SYSTEM:
 868                 return;
 869         case CONNMAN_SERVICE_TYPE_ETHERNET:
 870         case CONNMAN_SERVICE_TYPE_WIFI:
 871         case CONNMAN_SERVICE_TYPE_WIMAX:
 872         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 873         case CONNMAN_SERVICE_TYPE_CELLULAR:
 874         case CONNMAN_SERVICE_TYPE_GPS:
 875         case CONNMAN_SERVICE_TYPE_VPN:
 876         case CONNMAN_SERVICE_TYPE_GADGET:
 877                 break;
 878         }
 879
 880         connman_info("Adding interface %s [ %s ]", name,
 881                                 __connman_service_type2string(type));
 882
 883         technology = technology_find(type);
 884
 885         if (technology == NULL || technology->driver == NULL
 886                         || technology->driver->add_interface == NULL)
 887                 return;
 888
 889         technology->driver->add_interface(technology,
 890                                         index, name, ident);
 891 }
 892
 893 void __connman_technology_remove_interface(enum connman_service_type type,
 894                                 int index, const char *name, const char *ident)
 895 {
 896         struct connman_technology *technology;
 897
 898         switch (type) {
 899         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 900         case CONNMAN_SERVICE_TYPE_SYSTEM:
 901                 return;
 902         case CONNMAN_SERVICE_TYPE_ETHERNET:
 903         case CONNMAN_SERVICE_TYPE_WIFI:
 904         case CONNMAN_SERVICE_TYPE_WIMAX:
 905         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 906         case CONNMAN_SERVICE_TYPE_CELLULAR:
 907         case CONNMAN_SERVICE_TYPE_GPS:
 908         case CONNMAN_SERVICE_TYPE_VPN:
 909         case CONNMAN_SERVICE_TYPE_GADGET:
 910                 break;
 911         }
 912
 913         connman_info("Remove interface %s [ %s ]", name,
 914                                 __connman_service_type2string(type));
 915
 916         technology = technology_find(type);
 917
 918         if (technology == NULL || technology->driver == NULL)
 919                 return;
 920
 921         if (technology->driver->remove_interface)
 922                 technology->driver->remove_interface(technology, index);
 923 }
 924
 925 int __connman_technology_add_device(struct connman_device *device)
 926 {
 927         struct connman_technology *technology;
 928         enum connman_service_type type;
 929
 930         DBG("device %p", device);
 931
 932         type = __connman_device_get_service_type(device);
 933
 934         technology = technology_get(type);
 935         if (technology == NULL) {
 936                 /*
 937                  * Since no driver can be found for this device at the moment we
 938                  * add it to the techless device list.
 939                 */
 940                 techless_device_list = g_slist_prepend(techless_device_list,
 941                                                                 device);
 942
 943                 return -ENXIO;
 944         }
 945
 946         if (technology->enable_persistent && !global_offlinemode)
 947                 __connman_device_enable(device);
 948         /* if technology persistent state is offline */
 949         if (!technology->enable_persistent)
 950                 __connman_device_disable(device);
 951
 952         technology->device_list = g_slist_append(technology->device_list,
 953                                                                 device);
 954
 955         return 0;
 956 }
 957
 958 int __connman_technology_remove_device(struct connman_device *device)
 959 {
 960         struct connman_technology *technology;
 961         enum connman_service_type type;
 962
 963         DBG("device %p", device);
 964
 965         type = __connman_device_get_service_type(device);
 966
 967         technology = technology_find(type);
 968         if (technology == NULL) {
 969                 techless_device_list = g_slist_remove(techless_device_list,
 970                                                                 device);
 971                 return -ENXIO;
 972         }
 973
 974         technology->device_list = g_slist_remove(technology->device_list,
 975                                                                 device);
 976         return 0;
 977 }
 978
 979 static void powered_changed(struct connman_technology *technology)
 980 {
 981         connman_bool_t powered;
 982
 983         __sync_synchronize();
 984         if (technology->enabled >0)
 985                 powered = TRUE;
 986         else
 987                 powered = FALSE;
 988
 989         connman_dbus_property_changed_basic(technology->path,
 990                         CONNMAN_TECHNOLOGY_INTERFACE, "Powered",
 991                         DBUS_TYPE_BOOLEAN, &powered);
 992 }
 993
 994 int __connman_technology_enabled(enum connman_service_type type)
 995 {
 996         struct connman_technology *technology;
 997
 998         technology = technology_find(type);
 999         if (technology == NULL)
1000                 return -ENXIO;
1001
1002         if (__sync_fetch_and_add(&technology->enabled, 1) == 0)
1003                 powered_changed(technology);
1004
1005         if (technology->pending_reply != NULL) {
1006                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
1007                 dbus_message_unref(technology->pending_reply);
1008                 g_source_remove(technology->pending_timeout);
1009                 technology->pending_reply = NULL;
1010                 technology->pending_timeout = 0;
1011         }
1012
1013         return 0;
1014 }
1015
1016 int __connman_technology_disabled(enum connman_service_type type)
1017 {
1018         struct connman_technology *technology;
1019
1020         technology = technology_find(type);
1021         if (technology == NULL)
1022                 return -ENXIO;
1023
1024         if (technology->pending_reply != NULL) {
1025                 g_dbus_send_reply(connection, technology->pending_reply, DBUS_TYPE_INVALID);
1026                 dbus_message_unref(technology->pending_reply);
1027                 g_source_remove(technology->pending_timeout);
1028                 technology->pending_reply = NULL;
1029                 technology->pending_timeout = 0;
1030         }
1031
1032         if (__sync_fetch_and_sub(&technology->enabled, 1) == 1)
1033                 powered_changed(technology);
1034
1035         return 0;
1036 }
1037
1038 int __connman_technology_set_offlinemode(connman_bool_t offlinemode)
1039 {
1040         GSList *list;
1041         int err = -EINVAL;
1042
1043         if (global_offlinemode == offlinemode)
1044                 return 0;
1045
1046         DBG("offlinemode %s", offlinemode ? "On" : "Off");
1047
1048         /*
1049          * This is a bit tricky. When you set offlinemode, there is no
1050          * way to differentiate between attempting offline mode and
1051          * resuming offlinemode from last saved profile. We need that
1052          * information in rfkill_update, otherwise it falls back on the
1053          * technology's persistent state. Hence we set the offline mode here
1054          * but save it & call the notifier only if its successful.
1055          */
1056
1057         global_offlinemode = offlinemode;
1058
1059         /* Traverse technology list, enable/disable each technology. */
1060         for (list = technology_list; list; list = list->next) {
1061                 struct connman_technology *technology = list->data;
1062
1063                 if (offlinemode)
1064                         err = technology_disable(technology, NULL);
1065
1066                 if (!offlinemode && technology->enable_persistent)
1067                         err = technology_enable(technology, NULL);
1068         }
1069
1070         if (err == 0 || err == -EINPROGRESS || err == -EALREADY) {
1071                 connman_technology_save_offlinemode();
1072                 __connman_notifier_offlinemode(offlinemode);
1073         } else
1074                 global_offlinemode = connman_technology_load_offlinemode();
1075
1076         return err;
1077 }
1078
1079 void __connman_technology_set_connected(enum connman_service_type type,
1080                 connman_bool_t connected)
1081 {
1082         struct connman_technology *technology;
1083
1084         technology = technology_find(type);
1085         if (technology == NULL)
1086                 return;
1087
1088         DBG("technology %p connected %d", technology, connected);
1089
1090         technology->connected = connected;
1091
1092         connman_dbus_property_changed_basic(technology->path,
1093                         CONNMAN_TECHNOLOGY_INTERFACE, "Connected",
1094                         DBUS_TYPE_BOOLEAN, &connected);
1095 }
1096
1097 int __connman_technology_add_rfkill(unsigned int index,
1098                                         enum connman_service_type type,
1099                                                 connman_bool_t softblock,
1100                                                 connman_bool_t hardblock)
1101 {
1102         struct connman_technology *technology;
1103         struct connman_rfkill *rfkill;
1104
1105         DBG("index %u type %d soft %u hard %u", index, type,
1106                                                         softblock, hardblock);
1107
1108         technology = technology_get(type);
1109         if (technology == NULL)
1110                 return -ENXIO;
1111
1112         rfkill = g_try_new0(struct connman_rfkill, 1);
1113         if (rfkill == NULL)
1114                 return -ENOMEM;
1115
1116         rfkill->index = index;
1117         rfkill->type = type;
1118         rfkill->softblock = softblock;
1119         rfkill->hardblock = hardblock;
1120
1121         g_hash_table_replace(technology->rfkill_list, &rfkill->index, rfkill);
1122
1123         if (hardblock) {
1124                 DBG("%s is switched off.", get_name(type));
1125                 return 0;
1126         }
1127
1128         /*
1129          * If Offline mode is on, we softblock the device if it isnt already.
1130          * If Offline mode is off, we rely on the persistent state of tech.
1131          */
1132         if (global_offlinemode) {
1133                 if (!softblock)
1134                         return __connman_rfkill_block(type, TRUE);
1135         } else {
1136                 if (technology->enable_persistent && softblock)
1137                         return __connman_rfkill_block(type, FALSE);
1138                 /* if technology persistent state is offline */
1139                 if (!technology->enable_persistent && !softblock)
1140                         return __connman_rfkill_block(type, TRUE);
1141         }
1142
1143         return 0;
1144 }
1145
1146 int __connman_technology_update_rfkill(unsigned int index,
1147                                         enum connman_service_type type,
1148                                                 connman_bool_t softblock,
1149                                                 connman_bool_t hardblock)
1150 {
1151         struct connman_technology *technology;
1152         struct connman_rfkill *rfkill;
1153
1154         DBG("index %u soft %u hard %u", index, softblock, hardblock);
1155
1156         technology = technology_find(type);
1157         if (technology == NULL)
1158                 return -ENXIO;
1159
1160         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1161         if (rfkill == NULL)
1162                 return -ENXIO;
1163
1164         if (rfkill->softblock == softblock &&
1165                 rfkill->hardblock == hardblock)
1166                 return 0;
1167
1168         rfkill->softblock = softblock;
1169         rfkill->hardblock = hardblock;
1170
1171         if (hardblock) {
1172                 DBG("%s is switched off.", get_name(type));
1173                 return 0;
1174         }
1175
1176         if (!global_offlinemode) {
1177                 if (technology->enable_persistent && softblock)
1178                         return __connman_rfkill_block(type, FALSE);
1179                 if (!technology->enable_persistent && !softblock)
1180                         return __connman_rfkill_block(type, TRUE);
1181         }
1182
1183         return 0;
1184 }
1185
1186 int __connman_technology_remove_rfkill(unsigned int index,
1187                                         enum connman_service_type type)
1188 {
1189         struct connman_technology *technology;
1190         struct connman_rfkill *rfkill;
1191
1192         DBG("index %u", index);
1193
1194         technology = technology_find(type);
1195         if (technology == NULL)
1196                 return -ENXIO;
1197
1198         rfkill = g_hash_table_lookup(technology->rfkill_list, &index);
1199         if (rfkill == NULL)
1200                 return -ENXIO;
1201
1202         g_hash_table_remove(technology->rfkill_list, &index);
1203
1204         technology_put(technology);
1205
1206         return 0;
1207 }
1208
1209 int __connman_technology_init(void)
1210 {
1211         DBG("");
1212
1213         connection = connman_dbus_get_connection();
1214
1215         global_offlinemode = connman_technology_load_offlinemode();
1216
1217         return 0;
1218 }
1219
1220 void __connman_technology_cleanup(void)
1221 {
1222         DBG("");
1223
1224         dbus_connection_unref(connection);
1225 }