vcs.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         DBG("element %p name %s", element, element->name);
 430
 431         if (g_dbus_register_interface(connection, element->path,
 432                                         CONNMAN_DEVICE_INTERFACE,
 433                                         device_methods, device_signals,
 434                                         NULL, device, NULL) == FALSE) {
 435                 connman_error("Failed to register %s device", element->path);
 436                 return -EIO;
 437         }
 438
 439         emit_devices_signal();
 440
 441         return 0;
 442 }
 443
 444 static void unregister_interface(struct connman_element *element)
 445 {
 446         DBG("element %p name %s", element, element->name);
 447
 448         emit_devices_signal();
 449
 450         g_dbus_unregister_interface(connection, element->path,
 451                                                 CONNMAN_DEVICE_INTERFACE);
 452 }
 453
 454 static GSList *driver_list = NULL;
 455
 456 static gint compare_priority(gconstpointer a, gconstpointer b)
 457 {
 458         const struct connman_device_driver *driver1 = a;
 459         const struct connman_device_driver *driver2 = b;
 460
 461         return driver2->priority - driver1->priority;
 462 }
 463
 464 /**
 465  * connman_device_driver_register:
 466  * @driver: device driver definition
 467  *
 468  * Register a new device driver
 469  *
 470  * Returns: %0 on success
 471  */
 472 int connman_device_driver_register(struct connman_device_driver *driver)
 473 {
 474         DBG("driver %p name %s", driver, driver->name);
 475
 476         driver_list = g_slist_insert_sorted(driver_list, driver,
 477                                                         compare_priority);
 478
 479         //__connman_driver_rescan(&device_driver);
 480
 481         return 0;
 482 }
 483
 484 /**
 485  * connman_device_driver_unregister:
 486  * @driver: device driver definition
 487  *
 488  * Remove a previously registered device driver
 489  */
 490 void connman_device_driver_unregister(struct connman_device_driver *driver)
 491 {
 492         DBG("driver %p name %s", driver, driver->name);
 493
 494         driver_list = g_slist_remove(driver_list, driver);
 495 }
 496
 497 static void unregister_network(gpointer data)
 498 {
 499         struct connman_network *network = data;
 500
 501         DBG("network %p", network);
 502
 503         connman_element_unregister((struct connman_element *) network);
 504
 505         connman_network_unref(network);
 506 }
 507
 508 static void device_destruct(struct connman_element *element)
 509 {
 510         struct connman_device *device = element->device;
 511
 512         DBG("element %p name %s", element, element->name);
 513
 514         g_free(device->path);
 515         g_free(device->interface);
 516
 517         g_hash_table_destroy(device->networks);
 518 }
 519
 520 /**
 521  * connman_device_create:
 522  * @node: device node name (for example an address)
 523  * @type: device type
 524  *
 525  * Allocate a new device of given #type and assign the #node name to it.
 526  *
 527  * Returns: a newly-allocated #connman_device structure
 528  */
 529 struct connman_device *connman_device_create(const char *node,
 530                                                 enum connman_device_type type)
 531 {
 532         struct connman_device *device;
 533
 534         DBG("node %s type %d", node, type);
 535
 536         device = g_try_new0(struct connman_device, 1);
 537         if (device == NULL)
 538                 return NULL;
 539
 540         DBG("device %p", device);
 541
 542         device->element.refcount = 1;
 543
 544         device->element.name = g_strdup(node);
 545         device->element.type = CONNMAN_ELEMENT_TYPE_DEVICE;
 546         device->element.index = -1;
 547
 548         switch (type) {
 549         case CONNMAN_DEVICE_TYPE_ETHERNET:
 550                 device->element.subtype = CONNMAN_ELEMENT_SUBTYPE_ETHERNET;
 551                 break;
 552         default:
 553                 device->element.subtype = CONNMAN_ELEMENT_SUBTYPE_UNKNOWN;
 554                 break;
 555         }
 556
 557         device->element.device = device;
 558         device->element.destruct = device_destruct;
 559
 560         device->type = type;
 561         device->mode = CONNMAN_DEVICE_MODE_NO_NETWORK;
 562         device->policy = CONNMAN_DEVICE_POLICY_AUTO;
 563
 564         device->networks = g_hash_table_new_full(g_str_hash, g_str_equal,
 565                                                 g_free, unregister_network);
 566
 567         return device;
 568 }
 569
 570 /**
 571  * connman_device_ref:
 572  * @device: device structure
 573  *
 574  * Increase reference counter of device
 575  */
 576 struct connman_device *connman_device_ref(struct connman_device *device)
 577 {
 578         if (connman_element_ref(&device->element) == NULL)
 579                 return NULL;
 580
 581         return device;
 582 }
 583
 584 /**
 585  * connman_device_unref:
 586  * @device: device structure
 587  *
 588  * Decrease reference counter of device
 589  */
 590 void connman_device_unref(struct connman_device *device)
 591 {
 592         connman_element_unref(&device->element);
 593 }
 594
 595 /**
 596  * connman_device_set_path:
 597  * @device: device structure
 598  * @path: path name
 599  *
 600  * Set path name of device
 601  */
 602 void connman_device_set_path(struct connman_device *device, const char *path)
 603 {
 604         g_free(device->element.devpath);
 605         device->element.devpath = g_strdup(path);
 606
 607         g_free(device->path);
 608         device->path = g_strdup(path);
 609 }
 610
 611 /**
 612  * connman_device_get_path:
 613  * @device: device structure
 614  *
 615  * Get path name of device
 616  */
 617 const char *connman_device_get_path(struct connman_device *device)
 618 {
 619         return device->path;
 620 }
 621
 622 /**
 623  * connman_device_set_index:
 624  * @device: device structure
 625  * @index: index number
 626  *
 627  * Set index number of device
 628  */
 629 void connman_device_set_index(struct connman_device *device, int index)
 630 {
 631         device->element.index = index;
 632 }
 633
 634 /**
 635  * connman_device_get_index:
 636  * @device: device structure
 637  *
 638  * Get index number of device
 639  */
 640 int connman_device_get_index(struct connman_device *device)
 641 {
 642         return device->element.index;
 643 }
 644
 645 /**
 646  * connman_device_set_interface:
 647  * @device: device structure
 648  * @interface: interface name
 649  *
 650  * Set interface name of device
 651  */
 652 void connman_device_set_interface(struct connman_device *device,
 653                                                         const char *interface)
 654 {
 655         g_free(device->element.devname);
 656         device->element.devname = g_strdup(interface);
 657
 658         g_free(device->interface);
 659         device->interface = g_strdup(interface);
 660 }
 661
 662 /**
 663  * connman_device_get_interface:
 664  * @device: device structure
 665  *
 666  * Get interface name of device
 667  */
 668 const char *connman_device_get_interface(struct connman_device *device)
 669 {
 670         return device->interface;
 671 }
 672
 673 /**
 674  * connman_device_set_policy:
 675  * @device: device structure
 676  * @policy: power and connection policy
 677  *
 678  * Change power and connection policy of device
 679  */
 680 void connman_device_set_policy(struct connman_device *device,
 681                                         enum connman_device_policy policy)
 682 {
 683         device->policy = policy;
 684 }
 685
 686 /**
 687  * connman_device_set_mode:
 688  * @device: device structure
 689  * @mode: network mode
 690  *
 691  * Change network mode of device
 692  */
 693 void connman_device_set_mode(struct connman_device *device,
 694                                                 enum connman_device_mode mode)
 695 {
 696         device->mode = mode;
 697 }
 698
 699 /**
 700  * connman_device_set_powered:
 701  * @device: device structure
 702  * @powered: powered state
 703  *
 704  * Change power state of device
 705  */
 706 int connman_device_set_powered(struct connman_device *device,
 707                                                 connman_bool_t powered)
 708 {
 709         DBusMessage *signal;
 710         DBusMessageIter entry, value;
 711         const char *key = "Powered";
 712
 713         DBG("driver %p powered %d", device, powered);
 714
 715         if (device->powered == powered)
 716                 return -EALREADY;
 717
 718         device->powered = powered;
 719
 720         signal = dbus_message_new_signal(device->element.path,
 721                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 722         if (signal == NULL)
 723                 return 0;
 724
 725         dbus_message_iter_init_append(signal, &entry);
 726
 727         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 728
 729         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 730                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 731         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN, &powered);
 732         dbus_message_iter_close_container(&entry, &value);
 733
 734         g_dbus_send_message(connection, signal);
 735
 736         return 0;
 737 }
 738
 739 /**
 740  * connman_device_set_carrier:
 741  * @device: device structure
 742  * @carrier: carrier state
 743  *
 744  * Change carrier state of device (only for device without scanning)
 745  */
 746 int connman_device_set_carrier(struct connman_device *device,
 747                                                 connman_bool_t carrier)
 748 {
 749         DBG("driver %p carrier %d", device, carrier);
 750
 751         if (device->mode != CONNMAN_DEVICE_MODE_NO_NETWORK)
 752                 return -EINVAL;
 753
 754         if (device->carrier == carrier)
 755                 return -EALREADY;
 756
 757         device->carrier = carrier;
 758
 759         if (carrier == TRUE) {
 760                 struct connman_element *element;
 761
 762                 element = connman_element_create(NULL);
 763                 if (element != NULL) {
 764                         element->type    = CONNMAN_ELEMENT_TYPE_DEVICE;
 765                         element->subtype = CONNMAN_ELEMENT_SUBTYPE_NETWORK;
 766                         element->index   = device->element.index;
 767
 768                         if (connman_element_register(element,
 769                                                         &device->element) < 0)
 770                                 connman_element_unref(element);
 771                 }
 772         } else
 773                 connman_element_unregister_children(&device->element);
 774
 775         return 0;
 776 }
 777
 778 /**
 779  * connman_device_set_scanning:
 780  * @device: device structure
 781  * @scanning: scanning state
 782  *
 783  * Change scanning state of device
 784  */
 785 int connman_device_set_scanning(struct connman_device *device,
 786                                                 connman_bool_t scanning)
 787 {
 788         DBusMessage *signal;
 789         DBusMessageIter entry, value;
 790         const char *key = "Scanning";
 791
 792         DBG("driver %p scanning %d", device, scanning);
 793
 794         if (!device->driver || !device->driver->scan)
 795                 return -EINVAL;
 796
 797         if (device->scanning == scanning)
 798                 return -EALREADY;
 799
 800         device->scanning = scanning;
 801
 802         signal = dbus_message_new_signal(device->element.path,
 803                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 804         if (signal == NULL)
 805                 return 0;
 806
 807         dbus_message_iter_init_append(signal, &entry);
 808
 809         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 810
 811         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 812                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 813         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN, &scanning);
 814         dbus_message_iter_close_container(&entry, &value);
 815
 816         g_dbus_send_message(connection, signal);
 817
 818         return 0;
 819 }
 820
 821 /**
 822  * connman_device_add_network:
 823  * @device: device structure
 824  * @network: network structure
 825  *
 826  * Add new network to the device
 827  */
 828 int connman_device_add_network(struct connman_device *device,
 829                                         struct connman_network *network)
 830 {
 831         const char *identifier = connman_network_get_identifier(network);
 832         int err;
 833
 834         DBG("device %p network %p", device, network);
 835
 836         if (device->mode == CONNMAN_DEVICE_MODE_NO_NETWORK)
 837                 return -EINVAL;
 838
 839         __connman_network_set_device(network, device);
 840
 841         err = connman_element_register((struct connman_element *) network,
 842                                                         &device->element);
 843         if (err < 0) {
 844                 __connman_network_set_device(network, NULL);
 845                 return err;
 846         }
 847
 848         g_hash_table_insert(device->networks, g_strdup(identifier),
 849                                                                 network);
 850
 851         return 0;
 852 }
 853
 854 /**
 855  * connman_device_get_network:
 856  * @device: device structure
 857  * @identifier: network identifier
 858  *
 859  * Get network for given identifier
 860  */
 861 struct connman_network *connman_device_get_network(struct connman_device *device,
 862                                                         const char *identifier)
 863 {
 864         DBG("device %p identifier %s", device, identifier);
 865
 866         return g_hash_table_lookup(device->networks, identifier);
 867 }
 868
 869 /**
 870  * connman_device_remove_network:
 871  * @device: device structure
 872  * @identifier: network identifier
 873  *
 874  * Remove network for given identifier
 875  */
 876 int connman_device_remove_network(struct connman_device *device,
 877                                                         const char *identifier)
 878 {
 879         DBG("device %p identifier %s", device, identifier);
 880
 881         g_hash_table_remove(device->networks, identifier);
 882
 883         return 0;
 884 }
 885
 886 /**
 887  * connman_device_register:
 888  * @device: device structure
 889  *
 890  * Register device with the system
 891  */
 892 int connman_device_register(struct connman_device *device)
 893 {
 894         return connman_element_register(&device->element, NULL);
 895 }
 896
 897 /**
 898  * connman_device_unregister:
 899  * @device: device structure
 900  *
 901  * Unregister device with the system
 902  */
 903 void connman_device_unregister(struct connman_device *device)
 904 {
 905         connman_element_unregister(&device->element);
 906 }
 907
 908 /**
 909  * connman_device_get_data:
 910  * @device: device structure
 911  *
 912  * Get private device data pointer
 913  */
 914 void *connman_device_get_data(struct connman_device *device)
 915 {
 916         return device->driver_data;
 917 }
 918
 919 /**
 920  * connman_device_set_data:
 921  * @device: device structure
 922  * @data: data pointer
 923  *
 924  * Set private device data pointer
 925  */
 926 void connman_device_set_data(struct connman_device *device, void *data)
 927 {
 928         device->driver_data = data;
 929 }
 930
 931 static void device_enable(struct connman_device *device)
 932 {
 933         DBG("device %p", device);
 934
 935         if (device->policy == CONNMAN_DEVICE_POLICY_IGNORE ||
 936                                 device->policy == CONNMAN_DEVICE_POLICY_OFF)
 937                 return;
 938
 939         if (device->powered == TRUE)
 940                 return;
 941
 942         if (device->driver->enable)
 943                 device->driver->enable(device);
 944 }
 945
 946 static void device_disable(struct connman_device *device)
 947 {
 948         DBG("device %p", device);
 949
 950         if (device->policy == CONNMAN_DEVICE_POLICY_IGNORE)
 951                 return;
 952
 953         if (device->powered == FALSE)
 954                 return;
 955
 956         g_hash_table_remove_all(device->networks);
 957
 958         if (device->driver->disable)
 959                 device->driver->disable(device);
 960 }
 961
 962 static gboolean match_driver(struct connman_device *device,
 963                                         struct connman_device_driver *driver)
 964 {
 965         if (device->type == driver->type ||
 966                         driver->type == CONNMAN_DEVICE_TYPE_UNKNOWN)
 967                 return TRUE;
 968
 969         return FALSE;
 970 }
 971
 972 static int device_probe(struct connman_element *element)
 973 {
 974         struct connman_device *device = element->device;
 975         GSList *list;
 976         int err;
 977
 978         DBG("element %p name %s", element, element->name);
 979
 980         if (device == NULL)
 981                 return -ENODEV;
 982
 983         for (list = driver_list; list; list = list->next) {
 984                 struct connman_device_driver *driver = list->data;
 985
 986                 if (match_driver(device, driver) == FALSE)
 987                         continue;
 988
 989                 DBG("driver %p name %s", driver, driver->name);
 990
 991                 if (driver->probe(device) == 0) {
 992                         device->driver = driver;
 993                         break;
 994                 }
 995         }
 996
 997         if (device->driver == NULL)
 998                 return -ENODEV;
 999
1000         err = register_interface(element);
1001         if (err < 0) {
1002                 if (device->driver->remove)
1003                         device->driver->remove(device);
1004                 return err;
1005         }
1006
1007         device_enable(device);
1008
1009         return 0;
1010 }
1011
1012 static void device_remove(struct connman_element *element)
1013 {
1014         struct connman_device *device = element->device;
1015
1016         DBG("element %p name %s", element, element->name);
1017
1018         if (device == NULL)
1019                 return;
1020
1021         if (device->driver == NULL)
1022                 return;
1023
1024         device_disable(device);
1025
1026         unregister_interface(element);
1027
1028         if (device->driver->remove)
1029                 device->driver->remove(device);
1030 }
1031
1032 static struct connman_driver device_driver = {
1033         .name           = "device",
1034         .type           = CONNMAN_ELEMENT_TYPE_DEVICE,
1035         .priority       = CONNMAN_DRIVER_PRIORITY_LOW,
1036         .probe          = device_probe,
1037         .remove         = device_remove,
1038 };
1039
1040 int __connman_device_init(void)
1041 {
1042         DBG("");
1043
1044         connection = connman_dbus_get_connection();
1045
1046         return connman_driver_register(&device_driver);
1047 }
1048
1049 void __connman_device_cleanup(void)
1050 {
1051         DBG("");
1052
1053         connman_driver_unregister(&device_driver);
1054
1055         dbus_connection_unref(connection);
1056 }