git.maemo.org Git - connman/blob - src/device.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2008  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 <gdbus.h>
  28
  29 #include "connman.h"
  30
  31 struct connman_device {
  32         struct connman_element element;
  33         enum connman_device_type type;
  34         enum connman_device_mode mode;
  35         enum connman_device_policy policy;
  36         gboolean powered;
  37         gboolean carrier;
  38         gboolean scanning;
  39         char *path;
  40         char *interface;
  41
  42         struct connman_device_driver *driver;
  43         void *driver_data;
  44
  45         GHashTable *networks;
  46 };
  47
  48 static const char *type2description(enum connman_device_type type)
  49 {
  50         switch (type) {
  51         case CONNMAN_DEVICE_TYPE_ETHERNET:
  52                 return "Ethernet";
  53         case CONNMAN_DEVICE_TYPE_WIFI:
  54                 return "Wireless";
  55         case CONNMAN_DEVICE_TYPE_WIMAX:
  56                 return "WiMAX";
  57         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
  58                 return "Bluetooth";
  59         case CONNMAN_DEVICE_TYPE_HSO:
  60                 return "Cellular";
  61         default:
  62                 return NULL;
  63         }
  64 }
  65
  66 static const char *type2string(enum connman_device_type type)
  67 {
  68         switch (type) {
  69         case CONNMAN_DEVICE_TYPE_ETHERNET:
  70                 return "ethernet";
  71         case CONNMAN_DEVICE_TYPE_WIFI:
  72                 return "wifi";
  73         case CONNMAN_DEVICE_TYPE_WIMAX:
  74                 return "wimax";
  75         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
  76                 return "bluetooth";
  77         case CONNMAN_DEVICE_TYPE_HSO:
  78                 return "cellular";
  79         default:
  80                 return NULL;
  81         }
  82 }
  83
  84 static const char *policy2string(enum connman_device_policy policy)
  85 {
  86         switch (policy) {
  87         case CONNMAN_DEVICE_POLICY_IGNORE:
  88                 return "ignore";
  89         case CONNMAN_DEVICE_POLICY_OFF:
  90                 return "off";
  91         case CONNMAN_DEVICE_POLICY_AUTO:
  92                 return "auto";
  93         case CONNMAN_DEVICE_POLICY_MANUAL:
  94                 return "manual";
  95         default:
  96                 return NULL;
  97         }
  98 }
  99
 100 static enum connman_device_policy string2policy(const char *policy)
 101 {
 102         if (g_str_equal(policy, "ignore") == TRUE)
 103                 return CONNMAN_DEVICE_POLICY_IGNORE;
 104         else if (g_str_equal(policy, "off") == TRUE)
 105                 return CONNMAN_DEVICE_POLICY_OFF;
 106         else if (g_str_equal(policy, "auto") == TRUE)
 107                 return CONNMAN_DEVICE_POLICY_AUTO;
 108         else if (g_str_equal(policy, "manual") == TRUE)
 109                 return CONNMAN_DEVICE_POLICY_MANUAL;
 110         else
 111                 return CONNMAN_DEVICE_POLICY_UNKNOWN;
 112 }
 113
 114 static int set_powered(struct connman_device *device, gboolean powered)
 115 {
 116         struct connman_device_driver *driver = device->driver;
 117         int err;
 118
 119         DBG("device %p powered %d", device, powered);
 120
 121         if (!driver)
 122                 return -EINVAL;
 123
 124         if (powered == TRUE) {
 125                 if (driver->enable)
 126                         err = driver->enable(device);
 127                 else
 128                         err = -EINVAL;
 129         } else {
 130                 g_hash_table_remove_all(device->networks);
 131
 132                 if (driver->disable)
 133                         err = driver->disable(device);
 134                 else
 135                         err = -EINVAL;
 136         }
 137
 138         return err;
 139 }
 140
 141 static int set_policy(DBusConnection *connection,
 142                                 struct connman_device *device,
 143                                         enum connman_device_policy policy)
 144 {
 145         DBusMessage *signal;
 146         DBusMessageIter entry, value;
 147         const char *str, *key = "Policy";
 148         int err = 0;
 149
 150         DBG("device %p policy %d", device, policy);
 151
 152         if (device->policy == policy)
 153                 return 0;
 154
 155         switch (policy) {
 156         case CONNMAN_DEVICE_POLICY_OFF:
 157                 if (device->powered == TRUE)
 158                         err = set_powered(device, FALSE);
 159                 break;
 160         case CONNMAN_DEVICE_POLICY_AUTO:
 161         case CONNMAN_DEVICE_POLICY_MANUAL:
 162                 if (device->powered == FALSE)
 163                         err = set_powered(device, TRUE);
 164                 break;
 165         default:
 166                 break;
 167         }
 168
 169         if (err < 0)
 170                 return err;
 171
 172         device->policy = policy;
 173
 174         signal = dbus_message_new_signal(device->element.path,
 175                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 176         if (signal == NULL)
 177                 return 0;
 178
 179         dbus_message_iter_init_append(signal, &entry);
 180
 181         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 182
 183         str = policy2string(policy);
 184
 185         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 186                                         DBUS_TYPE_STRING_AS_STRING, &value);
 187         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &str);
 188         dbus_message_iter_close_container(&entry, &value);
 189
 190         g_dbus_send_message(connection, signal);
 191
 192         return 0;
 193 }
 194
 195 static void append_networks(struct connman_device *device,
 196                                                 DBusMessageIter *entry)
 197 {
 198         DBusMessageIter value, iter;
 199         const char *key = "Networks";
 200
 201         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 202
 203         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
 204                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
 205                                                                 &value);
 206
 207         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
 208                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
 209         __connman_element_list((struct connman_element *) device,
 210                                         CONNMAN_ELEMENT_TYPE_NETWORK, &iter);
 211         dbus_message_iter_close_container(&value, &iter);
 212
 213         dbus_message_iter_close_container(entry, &value);
 214 }
 215
 216 static DBusMessage *get_properties(DBusConnection *conn,
 217                                         DBusMessage *msg, void *data)
 218 {
 219         struct connman_device *device = data;
 220         DBusMessage *reply;
 221         DBusMessageIter array, dict, entry;
 222         const char *str;
 223
 224         DBG("conn %p", conn);
 225
 226         reply = dbus_message_new_method_return(msg);
 227         if (reply == NULL)
 228                 return NULL;
 229
 230         dbus_message_iter_init_append(reply, &array);
 231
 232         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 233                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 234                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 235                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 236
 237         str = type2description(device->type);
 238         if (str != NULL && device->interface != NULL) {
 239                 char *name = g_strdup_printf("%s (%s)", str, device->interface);
 240                 if (name != NULL)
 241                         connman_dbus_dict_append_variant(&dict, "Name",
 242                                                 DBUS_TYPE_STRING, &name);
 243                 g_free(name);
 244         }
 245
 246         str = type2string(device->type);
 247         if (str != NULL)
 248                 connman_dbus_dict_append_variant(&dict, "Type",
 249                                                 DBUS_TYPE_STRING, &str);
 250
 251         if (device->interface != NULL)
 252                 connman_dbus_dict_append_variant(&dict, "Interface",
 253                                         DBUS_TYPE_STRING, &device->interface);
 254
 255         str = policy2string(device->policy);
 256         if (str != NULL)
 257                 connman_dbus_dict_append_variant(&dict, "Policy",
 258                                                 DBUS_TYPE_STRING, &str);
 259
 260         connman_dbus_dict_append_variant(&dict, "Powered",
 261                                         DBUS_TYPE_BOOLEAN, &device->powered);
 262
 263         if (device->driver && device->driver->scan)
 264                 connman_dbus_dict_append_variant(&dict, "Scanning",
 265                                         DBUS_TYPE_BOOLEAN, &device->scanning);
 266
 267         if (device->mode != CONNMAN_DEVICE_MODE_NO_NETWORK) {
 268                 dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
 269                                                                 NULL, &entry);
 270                 append_networks(device, &entry);
 271                 dbus_message_iter_close_container(&dict, &entry);
 272         }
 273
 274         dbus_message_iter_close_container(&array, &dict);
 275
 276         return reply;
 277 }
 278
 279 static DBusMessage *set_property(DBusConnection *conn,
 280                                         DBusMessage *msg, void *data)
 281 {
 282         struct connman_device *device = data;
 283         DBusMessageIter iter, value;
 284         const char *name;
 285
 286         DBG("conn %p", conn);
 287
 288         if (dbus_message_iter_init(msg, &iter) == FALSE)
 289                 return __connman_error_invalid_arguments(msg);
 290
 291         dbus_message_iter_get_basic(&iter, &name);
 292         dbus_message_iter_next(&iter);
 293         dbus_message_iter_recurse(&iter, &value);
 294
 295         if (__connman_security_check_privileges(msg) < 0)
 296                 return __connman_error_permission_denied(msg);
 297
 298         if (g_str_equal(name, "Powered") == TRUE) {
 299                 gboolean powered;
 300                 int err;
 301
 302                 dbus_message_iter_get_basic(&value, &powered);
 303
 304                 if (device->powered == powered)
 305                         return __connman_error_invalid_arguments(msg);
 306
 307                 err = set_powered(device, powered);
 308                 if (err < 0 && err != -EINPROGRESS)
 309                         return __connman_error_failed(msg);
 310         } else if (g_str_equal(name, "Policy") == TRUE) {
 311                 enum connman_device_policy policy;
 312                 const char *str;
 313                 int err;
 314
 315                 dbus_message_iter_get_basic(&value, &str);
 316                 policy = string2policy(str);
 317                 if (policy == CONNMAN_DEVICE_POLICY_UNKNOWN)
 318                         return __connman_error_invalid_arguments(msg);
 319
 320                 err = set_policy(conn, device, policy);
 321                 if (err < 0)
 322                         return __connman_error_failed(msg);
 323         }
 324
 325         __connman_element_store(&device->element);
 326
 327         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 328 }
 329
 330 static DBusMessage *create_network(DBusConnection *conn,
 331                                         DBusMessage *msg, void *data)
 332 {
 333         DBG("conn %p", conn);
 334
 335         if (__connman_security_check_privileges(msg) < 0)
 336                 return __connman_error_permission_denied(msg);
 337
 338         return __connman_error_invalid_arguments(msg);
 339 }
 340
 341 static DBusMessage *remove_network(DBusConnection *conn,
 342                                         DBusMessage *msg, void *data)
 343 {
 344         DBG("conn %p", conn);
 345
 346         if (__connman_security_check_privileges(msg) < 0)
 347                 return __connman_error_permission_denied(msg);
 348
 349         return __connman_error_invalid_arguments(msg);
 350 }
 351
 352 static DBusMessage *propose_scan(DBusConnection *conn,
 353                                         DBusMessage *msg, void *data)
 354 {
 355         struct connman_device *device = data;
 356         int err;
 357
 358         DBG("conn %p", conn);
 359
 360         if (device->mode == CONNMAN_DEVICE_MODE_NO_NETWORK)
 361                 return __connman_error_not_supported(msg);
 362
 363         if (!device->driver || !device->driver->scan)
 364                 return __connman_error_not_supported(msg);
 365
 366         err = device->driver->scan(device);
 367         if (err < 0)
 368                 return __connman_error_failed(msg);
 369
 370         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 371 }
 372
 373 static GDBusMethodTable device_methods[] = {
 374         { "GetProperties", "",      "a{sv}", get_properties },
 375         { "SetProperty",   "sv",    "",      set_property   },
 376         { "CreateNetwork", "a{sv}", "o",     create_network },
 377         { "RemoveNetwork", "o",     "",      remove_network },
 378         { "ProposeScan",   "",      "",      propose_scan   },
 379         { },
 380 };
 381
 382 static GDBusSignalTable device_signals[] = {
 383         { "PropertyChanged", "sv" },
 384         { },
 385 };
 386
 387 static DBusConnection *connection;
 388
 389 static void append_devices(DBusMessageIter *entry)
 390 {
 391         DBusMessageIter value, iter;
 392         const char *key = "Devices";
 393
 394         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 395
 396         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
 397                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
 398                                                                 &value);
 399
 400         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
 401                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
 402         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_DEVICE, &iter);
 403         dbus_message_iter_close_container(&value, &iter);
 404
 405         dbus_message_iter_close_container(entry, &value);
 406 }
 407
 408 static void emit_devices_signal(void)
 409 {
 410         DBusMessage *signal;
 411         DBusMessageIter entry;
 412
 413         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
 414                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
 415         if (signal == NULL)
 416                 return;
 417
 418         dbus_message_iter_init_append(signal, &entry);
 419
 420         append_devices(&entry);
 421
 422         g_dbus_send_message(connection, signal);
 423 }
 424
 425 static int register_interface(struct connman_element *element)
 426 {
 427         struct connman_device *device = element->device;
 428
 429         if (g_dbus_register_interface(connection, element->path,
 430                                         CONNMAN_DEVICE_INTERFACE,
 431                                         device_methods, device_signals,
 432                                         NULL, device, NULL) == FALSE) {
 433                 connman_error("Failed to register %s device", element->path);
 434                 return -EIO;
 435         }
 436
 437         emit_devices_signal();
 438
 439         return 0;
 440 }
 441
 442 static void unregister_interface(struct connman_element *element)
 443 {
 444         emit_devices_signal();
 445
 446         g_dbus_unregister_interface(connection, element->path,
 447                                                 CONNMAN_DEVICE_INTERFACE);
 448 }
 449
 450 static GSList *driver_list = NULL;
 451
 452 static gint compare_priority(gconstpointer a, gconstpointer b)
 453 {
 454         const struct connman_device_driver *driver1 = a;
 455         const struct connman_device_driver *driver2 = b;
 456
 457         return driver2->priority - driver1->priority;
 458 }
 459
 460 /**
 461  * connman_device_driver_register:
 462  * @driver: device driver definition
 463  *
 464  * Register a new device driver
 465  *
 466  * Returns: %0 on success
 467  */
 468 int connman_device_driver_register(struct connman_device_driver *driver)
 469 {
 470         DBG("driver %p name %s", driver, driver->name);
 471
 472         driver_list = g_slist_insert_sorted(driver_list, driver,
 473                                                         compare_priority);
 474
 475         //__connman_driver_rescan(&device_driver);
 476
 477         return 0;
 478 }
 479
 480 /**
 481  * connman_device_driver_unregister:
 482  * @driver: device driver definition
 483  *
 484  * Remove a previously registered device driver
 485  */
 486 void connman_device_driver_unregister(struct connman_device_driver *driver)
 487 {
 488         DBG("driver %p name %s", driver, driver->name);
 489
 490         driver_list = g_slist_remove(driver_list, driver);
 491 }
 492
 493 static void unregister_network(gpointer data)
 494 {
 495         struct connman_network *network = data;
 496
 497         DBG("network %p", network);
 498
 499         connman_element_unregister((struct connman_element *) network);
 500
 501         connman_network_unref(network);
 502 }
 503
 504 static void device_destruct(struct connman_element *element)
 505 {
 506         struct connman_device *device = element->device;
 507
 508         DBG("element %p name %s", element, element->name);
 509
 510         g_free(device->path);
 511         g_free(device->interface);
 512
 513         g_hash_table_destroy(device->networks);
 514 }
 515
 516 /**
 517  * connman_device_create:
 518  * @node: device node name (for example an address)
 519  * @type: device type
 520  *
 521  * Allocate a new device of given #type and assign the #node name to it.
 522  *
 523  * Returns: a newly-allocated #connman_device structure
 524  */
 525 struct connman_device *connman_device_create(const char *node,
 526                                                 enum connman_device_type type)
 527 {
 528         struct connman_device *device;
 529
 530         DBG("node %s type %d", node, type);
 531
 532         device = g_try_new0(struct connman_device, 1);
 533         if (device == NULL)
 534                 return NULL;
 535
 536         DBG("device %p", device);
 537
 538         device->element.refcount = 1;
 539
 540         device->element.name = g_strdup(node);
 541         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 542         device->element.index = -1;
 543
 544         switch (type) {
 545         case CONNMAN_DEVICE_TYPE_ETHERNET:
 546                 device->element.subtype = CONNMAN_ELEMENT_SUBTYPE_ETHERNET;
 547                 break;
 548         default:
 549                 device->element.subtype = CONNMAN_ELEMENT_SUBTYPE_UNKNOWN;
 550                 break;
 551         }
 552
 553         device->element.device = device;
 554         device->element.destruct = device_destruct;
 555
 556         device->type = type;
 557         device->mode = CONNMAN_DEVICE_MODE_NO_NETWORK;
 558         device->policy = CONNMAN_DEVICE_POLICY_AUTO;
 559
 560         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 561                                                 g_free, unregister_network);
 562
 563         return device;
 564 }
 565
 566 /**
 567  * connman_device_ref:
 568  * @device: device structure
 569  *
 570  * Increase reference counter of device
 571  */
 572 struct connman_device *connman_device_ref(struct connman_device *device)
 573 {
 574         if (connman_element_ref(&device->element) == NULL)
 575                 return NULL;
 576
 577         return device;
 578 }
 579
 580 /**
 581  * connman_device_unref:
 582  * @device: device structure
 583  *
 584  * Decrease reference counter of device
 585  */
 586 void connman_device_unref(struct connman_device *device)
 587 {
 588         connman_element_unref(&device->element);
 589 }
 590
 591 /**
 592  * connman_device_set_path:
 593  * @device: device structure
 594  * @path: path name
 595  *
 596  * Set path name of device
 597  */
 598 void connman_device_set_path(struct connman_device *device, const char *path)
 599 {
 600         g_free(device->element.devpath);
 601         device->element.devpath = g_strdup(path);
 602
 603         g_free(device->path);
 604         device->path = g_strdup(path);
 605 }
 606
 607 /**
 608  * connman_device_get_path:
 609  * @device: device structure
 610  *
 611  * Get path name of device
 612  */
 613 const char *connman_device_get_path(struct connman_device *device)
 614 {
 615         return device->path;
 616 }
 617
 618 /**
 619  * connman_device_set_index:
 620  * @device: device structure
 621  * @index: index number
 622  *
 623  * Set index number of device
 624  */
 625 void connman_device_set_index(struct connman_device *device, int index)
 626 {
 627         device->element.index = index;
 628 }
 629
 630 /**
 631  * connman_device_get_index:
 632  * @device: device structure
 633  *
 634  * Get index number of device
 635  */
 636 int connman_device_get_index(struct connman_device *device)
 637 {
 638         return device->element.index;
 639 }
 640
 641 /**
 642  * connman_device_set_interface:
 643  * @device: device structure
 644  * @interface: interface name
 645  *
 646  * Set interface name of device
 647  */
 648 void connman_device_set_interface(struct connman_device *device,
 649                                                         const char *interface)
 650 {
 651         g_free(device->element.devname);
 652         device->element.devname = g_strdup(interface);
 653
 654         g_free(device->interface);
 655         device->interface = g_strdup(interface);
 656 }
 657
 658 /**
 659  * connman_device_get_interface:
 660  * @device: device structure
 661  *
 662  * Get interface name of device
 663  */
 664 const char *connman_device_get_interface(struct connman_device *device)
 665 {
 666         return device->interface;
 667 }
 668
 669 /**
 670  * connman_device_set_policy:
 671  * @device: device structure
 672  * @policy: power and connection policy
 673  *
 674  * Change power and connection policy of device
 675  */
 676 void connman_device_set_policy(struct connman_device *device,
 677                                         enum connman_device_policy policy)
 678 {
 679         device->policy = policy;
 680 }
 681
 682 /**
 683  * connman_device_set_mode:
 684  * @device: device structure
 685  * @mode: network mode
 686  *
 687  * Change network mode of device
 688  */
 689 void connman_device_set_mode(struct connman_device *device,
 690                                                 enum connman_device_mode mode)
 691 {
 692         device->mode = mode;
 693 }
 694
 695 /**
 696  * connman_device_set_powered:
 697  * @device: device structure
 698  * @powered: powered state
 699  *
 700  * Change power state of device
 701  */
 702 int connman_device_set_powered(struct connman_device *device,
 703                                                 connman_bool_t powered)
 704 {
 705         DBusMessage *signal;
 706         DBusMessageIter entry, value;
 707         const char *key = "Powered";
 708
 709         DBG("driver %p powered %d", device, powered);
 710
 711         if (device->powered == powered)
 712                 return -EALREADY;
 713
 714         device->powered = powered;
 715
 716         signal = dbus_message_new_signal(device->element.path,
 717                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 718         if (signal == NULL)
 719                 return 0;
 720
 721         dbus_message_iter_init_append(signal, &entry);
 722
 723         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 724
 725         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 726                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 727         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN, &powered);
 728         dbus_message_iter_close_container(&entry, &value);
 729
 730         g_dbus_send_message(connection, signal);
 731
 732         return 0;
 733 }
 734
 735 /**
 736  * connman_device_set_carrier:
 737  * @device: device structure
 738  * @carrier: carrier state
 739  *
 740  * Change carrier state of device (only for device without scanning)
 741  */
 742 int connman_device_set_carrier(struct connman_device *device,
 743                                                 connman_bool_t carrier)
 744 {
 745         DBG("driver %p carrier %d", device, carrier);
 746
 747         if (device->mode != CONNMAN_DEVICE_MODE_NO_NETWORK)
 748                 return -EINVAL;
 749
 750         if (device->carrier == carrier)
 751                 return -EALREADY;
 752
 753         device->carrier = carrier;
 754
 755         if (carrier == TRUE) {
 756                 struct connman_element *element;
 757
 758                 element = connman_element_create(NULL);
 759                 if (element != NULL) {
 760                         element->type    = CONNMAN_ELEMENT_TYPE_DEVICE;
 761                         element->subtype = CONNMAN_ELEMENT_SUBTYPE_NETWORK;
 762                         element->index   = device->element.index;
 763
 764                         if (connman_element_register(element,
 765                                                         &device->element) < 0)
 766                                 connman_element_unref(element);
 767                 }
 768         } else
 769                 connman_element_unregister_children(&device->element);
 770
 771         return 0;
 772 }
 773
 774 /**
 775  * connman_device_set_scanning:
 776  * @device: device structure
 777  * @scanning: scanning state
 778  *
 779  * Change scanning state of device
 780  */
 781 int connman_device_set_scanning(struct connman_device *device,
 782                                                 connman_bool_t scanning)
 783 {
 784         DBusMessage *signal;
 785         DBusMessageIter entry, value;
 786         const char *key = "Scanning";
 787
 788         DBG("driver %p scanning %d", device, scanning);
 789
 790         if (!device->driver || !device->driver->scan)
 791                 return -EINVAL;
 792
 793         if (device->scanning == scanning)
 794                 return -EALREADY;
 795
 796         device->scanning = scanning;
 797
 798         signal = dbus_message_new_signal(device->element.path,
 799                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 800         if (signal == NULL)
 801                 return 0;
 802
 803         dbus_message_iter_init_append(signal, &entry);
 804
 805         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 806
 807         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 808                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 809         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN, &scanning);
 810         dbus_message_iter_close_container(&entry, &value);
 811
 812         g_dbus_send_message(connection, signal);
 813
 814         return 0;
 815 }
 816
 817 /**
 818  * connman_device_add_network:
 819  * @device: device structure
 820  * @network: network structure
 821  *
 822  * Add new network to the device
 823  */
 824 int connman_device_add_network(struct connman_device *device,
 825                                         struct connman_network *network)
 826 {
 827         const char *identifier = connman_network_get_identifier(network);
 828         int err;
 829
 830         DBG("device %p network %p", device, network);
 831
 832         if (device->mode == CONNMAN_DEVICE_MODE_NO_NETWORK)
 833                 return -EINVAL;
 834
 835         err = connman_element_register((struct connman_element *) network,
 836                                                         &device->element);
 837         if (err < 0)
 838                 return err;
 839
 840         __connman_network_set_device(network, device);
 841
 842         g_hash_table_insert(device->networks, g_strdup(identifier),
 843                                                                 network);
 844
 845         return 0;
 846 }
 847
 848 /**
 849  * connman_device_get_network:
 850  * @device: device structure
 851  * @identifier: network identifier
 852  *
 853  * Get network for given identifier
 854  */
 855 struct connman_network *connman_device_get_network(struct connman_device *device,
 856                                                         const char *identifier)
 857 {
 858         DBG("device %p identifier %s", device, identifier);
 859
 860         return g_hash_table_lookup(device->networks, identifier);
 861 }
 862
 863 /**
 864  * connman_device_remove_network:
 865  * @device: device structure
 866  * @identifier: network identifier
 867  *
 868  * Remove network for given identifier
 869  */
 870 int connman_device_remove_network(struct connman_device *device,
 871                                                         const char *identifier)
 872 {
 873         DBG("device %p identifier %s", device, identifier);
 874
 875         g_hash_table_remove(device->networks, identifier);
 876
 877         return 0;
 878 }
 879
 880 /**
 881  * connman_device_register:
 882  * @device: device structure
 883  *
 884  * Register device with the system
 885  */
 886 int connman_device_register(struct connman_device *device)
 887 {
 888         return connman_element_register(&device->element, NULL);
 889 }
 890
 891 /**
 892  * connman_device_unregister:
 893  * @device: device structure
 894  *
 895  * Unregister device with the system
 896  */
 897 void connman_device_unregister(struct connman_device *device)
 898 {
 899         connman_element_unregister(&device->element);
 900 }
 901
 902 /**
 903  * connman_device_get_data:
 904  * @device: device structure
 905  *
 906  * Get private device data pointer
 907  */
 908 void *connman_device_get_data(struct connman_device *device)
 909 {
 910         return device->driver_data;
 911 }
 912
 913 /**
 914  * connman_device_set_data:
 915  * @device: device structure
 916  * @data: data pointer
 917  *
 918  * Set private device data pointer
 919  */
 920 void connman_device_set_data(struct connman_device *device, void *data)
 921 {
 922         device->driver_data = data;
 923 }
 924
 925 static void device_enable(struct connman_device *device)
 926 {
 927         DBG("device %p", device);
 928
 929         if (device->policy == CONNMAN_DEVICE_POLICY_IGNORE ||
 930                                 device->policy == CONNMAN_DEVICE_POLICY_OFF)
 931                 return;
 932
 933         if (device->powered == TRUE)
 934                 return;
 935
 936         if (device->driver->enable)
 937                 device->driver->enable(device);
 938 }
 939
 940 static void device_disable(struct connman_device *device)
 941 {
 942         DBG("device %p", device);
 943
 944         if (device->policy == CONNMAN_DEVICE_POLICY_IGNORE)
 945                 return;
 946
 947         if (device->powered == FALSE)
 948                 return;
 949
 950         g_hash_table_remove_all(device->networks);
 951
 952         if (device->driver->disable)
 953                 device->driver->disable(device);
 954 }
 955
 956 static gboolean match_driver(struct connman_device *device,
 957                                         struct connman_device_driver *driver)
 958 {
 959         if (device->type == driver->type ||
 960                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
 961                 return TRUE;
 962
 963         return FALSE;
 964 }
 965
 966 static int device_probe(struct connman_element *element)
 967 {
 968         struct connman_device *device = element->device;
 969         GSList *list;
 970         int err;
 971
 972         DBG("element %p name %s", element, element->name);
 973
 974         if (device == NULL)
 975                 return -ENODEV;
 976
 977         for (list = driver_list; list; list = list->next) {
 978                 struct connman_device_driver *driver = list->data;
 979
 980                 if (match_driver(device, driver) == FALSE)
 981                         continue;
 982
 983                 DBG("driver %p name %s", driver, driver->name);
 984
 985                 if (driver->probe(device) == 0) {
 986                         device->driver = driver;
 987                         break;
 988                 }
 989         }
 990
 991         if (!device->driver)
 992                 return -ENODEV;
 993
 994         err = register_interface(element);
 995         if (err < 0) {
 996                 if (device->driver->remove)
 997                         device->driver->remove(device);
 998                 return err;
 999         }
1000
1001         device_enable(device);
1002
1003         return 0;
1004 }
1005
1006 static void device_remove(struct connman_element *element)
1007 {
1008         struct connman_device *device = element->device;
1009
1010         DBG("element %p name %s", element, element->name);
1011
1012         if (device == NULL)
1013                 return;
1014
1015         if (!device->driver)
1016                 return;
1017
1018         device_disable(device);
1019
1020         unregister_interface(element);
1021
1022         if (device->driver->remove)
1023                 device->driver->remove(device);
1024 }
1025
1026 static struct connman_driver device_driver = {
1027         .name           = "device",
1028         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1029         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1030         .probe          = device_probe,
1031         .remove         = device_remove,
1032 };
1033
1034 int __connman_device_init(void)
1035 {
1036         DBG("");
1037
1038         connection = connman_dbus_get_connection();
1039
1040         return connman_driver_register(&device_driver);
1041 }
1042
1043 void __connman_device_cleanup(void)
1044 {
1045         DBG("");
1046
1047         connman_driver_unregister(&device_driver);
1048
1049         dbus_connection_unref(connection);
1050 }