src/element.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  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 <stdarg.h>
  28 #include <string.h>
  29
  30 #include <glib.h>
  31 #include <gdbus.h>
  32
  33 #include "connman.h"
  34
  35 static DBusConnection *connection;
  36
  37 static GNode *element_root = NULL;
  38 static GSList *driver_list = NULL;
  39 static gchar *device_filter = NULL;
  40 static gchar *nodevice_filter = NULL;
  41
  42 static gboolean started = FALSE;
  43
  44 static const char *type2string(enum connman_element_type type)
  45 {
  46         switch (type) {
  47         case CONNMAN_ELEMENT_TYPE_UNKNOWN:
  48                 return "unknown";
  49         case CONNMAN_ELEMENT_TYPE_ROOT:
  50                 return "root";
  51         case CONNMAN_ELEMENT_TYPE_PROFILE:
  52                 return "profile";
  53         case CONNMAN_ELEMENT_TYPE_DEVICE:
  54                 return "device";
  55         case CONNMAN_ELEMENT_TYPE_NETWORK:
  56                 return "network";
  57         case CONNMAN_ELEMENT_TYPE_SERVICE:
  58                 return "service";
  59         case CONNMAN_ELEMENT_TYPE_IPV4:
  60                 return "ipv4";
  61         case CONNMAN_ELEMENT_TYPE_IPV6:
  62                 return "ipv6";
  63         case CONNMAN_ELEMENT_TYPE_DHCP:
  64                 return "dhcp";
  65         case CONNMAN_ELEMENT_TYPE_BOOTP:
  66                 return "bootp";
  67         case CONNMAN_ELEMENT_TYPE_ZEROCONF:
  68                 return "zeroconf";
  69         case CONNMAN_ELEMENT_TYPE_CONNECTION:
  70                 return "connection";
  71         case CONNMAN_ELEMENT_TYPE_VENDOR:
  72                 return "vendor";
  73         }
  74
  75         return NULL;
  76 }
  77
  78 struct foreach_data {
  79         enum connman_element_type type;
  80         element_cb_t callback;
  81         gpointer user_data;
  82 };
  83
  84 static gboolean foreach_callback(GNode *node, gpointer user_data)
  85 {
  86         struct connman_element *element = node->data;
  87         struct foreach_data *data = user_data;
  88
  89         DBG("element %p name %s", element, element->name);
  90
  91         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
  92                 return FALSE;
  93
  94         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
  95                                         data->type != element->type)
  96                 return FALSE;
  97
  98         if (data->callback)
  99                 data->callback(element, data->user_data);
 100
 101         return FALSE;
 102 }
 103
 104 void __connman_element_foreach(struct connman_element *element,
 105                                 enum connman_element_type type,
 106                                 element_cb_t callback, gpointer user_data)
 107 {
 108         struct foreach_data data = { type, callback, user_data };
 109         GNode *node;
 110
 111         DBG("");
 112
 113         if (element != NULL) {
 114                 node = g_node_find(element_root, G_PRE_ORDER,
 115                                                 G_TRAVERSE_ALL, element);
 116                 if (node == NULL)
 117                         return;
 118         } else
 119                 node = element_root;
 120
 121         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 122                                                 foreach_callback, &data);
 123 }
 124
 125 struct append_filter {
 126         enum connman_element_type type;
 127         DBusMessageIter *iter;
 128 };
 129
 130 static gboolean append_path(GNode *node, gpointer user_data)
 131 {
 132         struct connman_element *element = node->data;
 133         struct append_filter *filter = user_data;
 134
 135         DBG("element %p name %s", element, element->name);
 136
 137         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 138                 return FALSE;
 139
 140         if (filter->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 141                                         filter->type != element->type)
 142                 return FALSE;
 143
 144         if (filter->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 145                         __connman_device_has_driver(element->device) == FALSE)
 146                 return FALSE;
 147
 148         if (filter->type == CONNMAN_ELEMENT_TYPE_NETWORK &&
 149                         __connman_network_has_driver(element->network) == FALSE)
 150                 return FALSE;
 151
 152         dbus_message_iter_append_basic(filter->iter,
 153                                 DBUS_TYPE_OBJECT_PATH, &element->path);
 154
 155         return FALSE;
 156 }
 157
 158 void __connman_element_list(struct connman_element *element,
 159                                         enum connman_element_type type,
 160                                                         DBusMessageIter *iter)
 161 {
 162         struct append_filter filter = { type, iter };
 163         GNode *node;
 164
 165         DBG("");
 166
 167         if (element != NULL) {
 168                 node = g_node_find(element_root, G_PRE_ORDER,
 169                                                 G_TRAVERSE_ALL, element);
 170                 if (node == NULL)
 171                         return;
 172         } else
 173                 node = element_root;
 174
 175         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 176                                                 append_path, &filter);
 177 }
 178
 179 struct count_data {
 180         enum connman_element_type type;
 181         int count;
 182 };
 183
 184 static gboolean count_element(GNode *node, gpointer user_data)
 185 {
 186         struct connman_element *element = node->data;
 187         struct count_data *data = user_data;
 188
 189         DBG("element %p name %s", element, element->name);
 190
 191         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 192                 return FALSE;
 193
 194         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 195                                         data->type != element->type)
 196                 return FALSE;
 197
 198         data->count++;
 199
 200         return FALSE;
 201 }
 202
 203 int __connman_element_count(struct connman_element *element,
 204                                         enum connman_element_type type)
 205 {
 206         struct count_data data = { type, 0 };
 207         GNode *node;
 208
 209         DBG("");
 210
 211         if (element != NULL) {
 212                 node = g_node_find(element_root, G_PRE_ORDER,
 213                                                 G_TRAVERSE_ALL, element);
 214                 if (node == NULL)
 215                         return 0;
 216         } else
 217                 node = element_root;
 218
 219         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 220                                                 count_element, &data);
 221
 222         return data.count;
 223 }
 224
 225 static struct connman_network *__connman_element_get_network(struct connman_element *element)
 226 {
 227         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK &&
 228                                                 element->network != NULL)
 229                 return element->network;
 230
 231         if (element->parent == NULL)
 232                 return NULL;
 233
 234         return __connman_element_get_network(element->parent);
 235 }
 236
 237 struct connman_service *__connman_element_get_service(struct connman_element *element)
 238 {
 239         struct connman_service *service = NULL;
 240         struct connman_network *network;
 241         struct connman_device *device;
 242         enum connman_device_type type;
 243
 244         device = __connman_element_get_device(element);
 245         if (device == NULL)
 246                 return NULL;
 247
 248         type = connman_device_get_type(device);
 249
 250         switch (type) {
 251         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 252         case CONNMAN_DEVICE_TYPE_VENDOR:
 253         case CONNMAN_DEVICE_TYPE_GPS:
 254                 break;
 255         case CONNMAN_DEVICE_TYPE_ETHERNET:
 256         case CONNMAN_DEVICE_TYPE_WIFI:
 257         case CONNMAN_DEVICE_TYPE_WIMAX:
 258         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 259         case CONNMAN_DEVICE_TYPE_CELLULAR:
 260         case CONNMAN_DEVICE_TYPE_MBM:
 261         case CONNMAN_DEVICE_TYPE_HSO:
 262                 network = __connman_element_get_network(element);
 263                 if (network == NULL)
 264                         return NULL;
 265                 service = __connman_service_lookup_from_network(network);
 266                 break;
 267         }
 268
 269         return service;
 270 }
 271
 272 struct connman_device *__connman_element_get_device(struct connman_element *element)
 273 {
 274         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 275                                                 element->device != NULL)
 276                 return element->device;
 277
 278         if (element->parent == NULL)
 279                 return NULL;
 280
 281         return __connman_element_get_device(element->parent);
 282 }
 283
 284 const char *__connman_element_get_device_path(struct connman_element *element)
 285 {
 286         struct connman_device *device;
 287
 288         device = __connman_element_get_device(element);
 289         if (device == NULL)
 290                 return NULL;
 291
 292         return connman_device_get_path(device);
 293 }
 294
 295 const char *__connman_element_get_network_path(struct connman_element *element)
 296 {
 297         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK &&
 298                                                 element->network != NULL)
 299                 return element->path;
 300
 301         if (element->parent == NULL)
 302                 return NULL;
 303
 304         return __connman_element_get_network_path(element->parent);
 305 }
 306
 307 struct find_data {
 308         enum connman_service_type type;
 309         struct connman_device *device;
 310 };
 311
 312 static gboolean find_device(GNode *node, gpointer user_data)
 313 {
 314         struct connman_element *element = node->data;
 315         struct find_data *data = user_data;
 316
 317         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 318                 return FALSE;
 319
 320         if (element->device == NULL)
 321                 return FALSE;
 322
 323         if (data->type != connman_device_get_type(element->device))
 324                 return FALSE;
 325
 326         data->device = element->device;
 327
 328         return TRUE;
 329 }
 330
 331 struct connman_device *__connman_element_find_device(enum connman_service_type type)
 332 {
 333         struct find_data data = { .type = type, .device = NULL };
 334
 335         g_node_traverse(element_root, G_PRE_ORDER,
 336                                 G_TRAVERSE_ALL, -1, find_device, &data);
 337
 338         return data.device;
 339 }
 340
 341 static gboolean request_scan(GNode *node, gpointer user_data)
 342 {
 343         struct connman_element *element = node->data;
 344         struct find_data *data = user_data;
 345         enum connman_service_type type;
 346
 347         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 348                 return FALSE;
 349
 350         if (element->device == NULL)
 351                 return FALSE;
 352
 353         type = __connman_device_get_service_type(element->device);
 354
 355         switch (type) {
 356         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 357         case CONNMAN_SERVICE_TYPE_SYSTEM:
 358         case CONNMAN_SERVICE_TYPE_ETHERNET:
 359         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 360         case CONNMAN_SERVICE_TYPE_CELLULAR:
 361         case CONNMAN_SERVICE_TYPE_VPN:
 362                 return FALSE;
 363         case CONNMAN_SERVICE_TYPE_WIFI:
 364         case CONNMAN_SERVICE_TYPE_WIMAX:
 365                 if (data->type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
 366                                                         data->type != type)
 367                         return FALSE;
 368                 break;
 369         }
 370
 371         __connman_device_scan(element->device);
 372
 373         return FALSE;
 374 }
 375
 376 int __connman_element_request_scan(enum connman_service_type type)
 377 {
 378         struct find_data data = { .type = type, .device = NULL };
 379
 380         g_node_traverse(element_root, G_PRE_ORDER,
 381                                 G_TRAVERSE_ALL, -1, request_scan, &data);
 382
 383         return 0;
 384 }
 385
 386 static gboolean enable_technology(GNode *node, gpointer user_data)
 387 {
 388         struct connman_element *element = node->data;
 389         struct find_data *data = user_data;
 390         enum connman_service_type type;
 391
 392         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 393                 return FALSE;
 394
 395         if (element->device == NULL)
 396                 return FALSE;
 397
 398         type = __connman_device_get_service_type(element->device);
 399
 400         switch (type) {
 401         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 402         case CONNMAN_SERVICE_TYPE_SYSTEM:
 403         case CONNMAN_SERVICE_TYPE_VPN:
 404                 return FALSE;
 405         case CONNMAN_SERVICE_TYPE_ETHERNET:
 406         case CONNMAN_SERVICE_TYPE_WIFI:
 407         case CONNMAN_SERVICE_TYPE_WIMAX:
 408         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 409         case CONNMAN_SERVICE_TYPE_CELLULAR:
 410                 if (data->type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
 411                                                         data->type != type)
 412                         return FALSE;
 413                 break;
 414         }
 415
 416         __connman_device_enable_persistent(element->device);
 417
 418         return FALSE;
 419 }
 420
 421 int __connman_element_enable_technology(enum connman_service_type type)
 422 {
 423         struct find_data data = { .type = type, .device = NULL };
 424
 425         g_node_traverse(element_root, G_PRE_ORDER,
 426                                 G_TRAVERSE_ALL, -1, enable_technology, &data);
 427
 428         return 0;
 429 }
 430
 431 static gboolean disable_technology(GNode *node, gpointer user_data)
 432 {
 433         struct connman_element *element = node->data;
 434         struct find_data *data = user_data;
 435         enum connman_service_type type;
 436
 437         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 438                 return FALSE;
 439
 440         if (element->device == NULL)
 441                 return FALSE;
 442
 443         type = __connman_device_get_service_type(element->device);
 444
 445         switch (type) {
 446         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 447         case CONNMAN_SERVICE_TYPE_SYSTEM:
 448         case CONNMAN_SERVICE_TYPE_VPN:
 449                 return FALSE;
 450         case CONNMAN_SERVICE_TYPE_ETHERNET:
 451         case CONNMAN_SERVICE_TYPE_WIFI:
 452         case CONNMAN_SERVICE_TYPE_WIMAX:
 453         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 454         case CONNMAN_SERVICE_TYPE_CELLULAR:
 455                 if (data->type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
 456                                                         data->type != type)
 457                         return FALSE;
 458                 break;
 459         }
 460
 461         __connman_device_disable_persistent(element->device);
 462
 463         return FALSE;
 464 }
 465
 466 int __connman_element_disable_technology(enum connman_service_type type)
 467 {
 468         struct find_data data = { .type = type, .device = NULL };
 469
 470         g_node_traverse(element_root, G_PRE_ORDER,
 471                                 G_TRAVERSE_ALL, -1, disable_technology, &data);
 472
 473         return 0;
 474 }
 475
 476 static gint compare_priority(gconstpointer a, gconstpointer b)
 477 {
 478         const struct connman_driver *driver1 = a;
 479         const struct connman_driver *driver2 = b;
 480
 481         return driver2->priority - driver1->priority;
 482 }
 483
 484 static gboolean match_driver(struct connman_element *element,
 485                                         struct connman_driver *driver)
 486 {
 487         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 488                 return FALSE;
 489
 490         if (element->type == driver->type ||
 491                         driver->type == CONNMAN_ELEMENT_TYPE_UNKNOWN)
 492                 return TRUE;
 493
 494         return FALSE;
 495 }
 496
 497 static gboolean probe_driver(GNode *node, gpointer data)
 498 {
 499         struct connman_element *element = node->data;
 500         struct connman_driver *driver = data;
 501
 502         DBG("element %p name %s", element, element->name);
 503
 504         if (!element->driver && match_driver(element, driver) == TRUE) {
 505                 if (driver->probe(element) < 0)
 506                         return FALSE;
 507
 508                 __connman_element_lock(element);
 509                 element->driver = driver;
 510                 __connman_element_unlock(element);
 511         }
 512
 513         return FALSE;
 514 }
 515
 516 void __connman_driver_rescan(struct connman_driver *driver)
 517 {
 518         DBG("driver %p name %s", driver, driver->name);
 519
 520         if (!driver->probe)
 521                 return;
 522
 523         if (element_root != NULL)
 524                 g_node_traverse(element_root, G_PRE_ORDER,
 525                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 526 }
 527
 528 /**
 529  * connman_driver_register:
 530  * @driver: driver definition
 531  *
 532  * Register a new driver
 533  *
 534  * Returns: %0 on success
 535  */
 536 int connman_driver_register(struct connman_driver *driver)
 537 {
 538         DBG("driver %p name %s", driver, driver->name);
 539
 540         if (driver->type == CONNMAN_ELEMENT_TYPE_ROOT)
 541                 return -EINVAL;
 542
 543         if (!driver->probe)
 544                 return -EINVAL;
 545
 546         driver_list = g_slist_insert_sorted(driver_list, driver,
 547                                                         compare_priority);
 548
 549         if (started == FALSE)
 550                 return 0;
 551
 552         if (element_root != NULL)
 553                 g_node_traverse(element_root, G_PRE_ORDER,
 554                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 555
 556         return 0;
 557 }
 558
 559 static gboolean remove_driver(GNode *node, gpointer data)
 560 {
 561         struct connman_element *element = node->data;
 562         struct connman_driver *driver = data;
 563
 564         DBG("element %p name %s", element, element->name);
 565
 566         if (element->driver == driver) {
 567                 if (driver->remove)
 568                         driver->remove(element);
 569
 570                 __connman_element_lock(element);
 571                 element->driver = NULL;
 572                 __connman_element_unlock(element);
 573         }
 574
 575         return FALSE;
 576 }
 577
 578 /**
 579  * connman_driver_unregister:
 580  * @driver: driver definition
 581  *
 582  * Remove a previously registered driver
 583  */
 584 void connman_driver_unregister(struct connman_driver *driver)
 585 {
 586         DBG("driver %p name %s", driver, driver->name);
 587
 588         driver_list = g_slist_remove(driver_list, driver);
 589
 590         if (element_root != NULL)
 591                 g_node_traverse(element_root, G_POST_ORDER,
 592                                 G_TRAVERSE_ALL, -1, remove_driver, driver);
 593 }
 594
 595 static void unregister_property(gpointer data)
 596 {
 597         struct connman_property *property = data;
 598
 599         DBG("property %p", property);
 600
 601         g_free(property->value);
 602         g_free(property);
 603 }
 604
 605 void __connman_element_initialize(struct connman_element *element)
 606 {
 607         DBG("element %p", element);
 608
 609         element->refcount = 1;
 610
 611         element->name    = NULL;
 612         element->type    = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 613         element->state   = CONNMAN_ELEMENT_STATE_UNKNOWN;
 614         element->error   = CONNMAN_ELEMENT_ERROR_UNKNOWN;
 615         element->index   = -1;
 616         element->enabled = FALSE;
 617
 618         element->configuring = FALSE;
 619
 620         element->properties = g_hash_table_new_full(g_str_hash, g_str_equal,
 621                                                 g_free, unregister_property);
 622 }
 623
 624 /**
 625  * connman_element_create:
 626  * @name: element name
 627  *
 628  * Allocate a new element and assign the given #name to it. If the name
 629  * is #NULL, it will be later on created based on the element type.
 630  *
 631  * Returns: a newly-allocated #connman_element structure
 632  */
 633 struct connman_element *connman_element_create(const char *name)
 634 {
 635         struct connman_element *element;
 636
 637         element = g_try_new0(struct connman_element, 1);
 638         if (element == NULL)
 639                 return NULL;
 640
 641         DBG("element %p", element);
 642
 643         __connman_element_initialize(element);
 644
 645         return element;
 646 }
 647
 648 struct connman_element *connman_element_ref(struct connman_element *element)
 649 {
 650         DBG("element %p name %s refcount %d", element, element->name,
 651                                 g_atomic_int_get(&element->refcount) + 1);
 652
 653         g_atomic_int_inc(&element->refcount);
 654
 655         return element;
 656 }
 657
 658 static void free_properties(struct connman_element *element)
 659 {
 660         DBG("element %p name %s", element, element->name);
 661
 662         __connman_element_lock(element);
 663
 664         g_hash_table_destroy(element->properties);
 665         element->properties = NULL;
 666
 667         __connman_element_unlock(element);
 668 }
 669
 670 void connman_element_unref(struct connman_element *element)
 671 {
 672         DBG("element %p name %s refcount %d", element, element->name,
 673                                 g_atomic_int_get(&element->refcount) - 1);
 674
 675         if (g_atomic_int_dec_and_test(&element->refcount) == TRUE) {
 676                 if (element->destruct)
 677                         element->destruct(element);
 678                 free_properties(element);
 679                 g_free(element->ipv4.address);
 680                 g_free(element->ipv4.netmask);
 681                 g_free(element->ipv4.gateway);
 682                 g_free(element->ipv4.network);
 683                 g_free(element->ipv4.broadcast);
 684                 g_free(element->ipv4.nameserver);
 685                 g_free(element->devname);
 686                 g_free(element->path);
 687                 g_free(element->name);
 688                 g_free(element);
 689         }
 690 }
 691
 692 static int set_static_property(struct connman_element *element,
 693                                 const char *name, int type, const void *value)
 694 {
 695         struct connman_property *property;
 696
 697         DBG("element %p name %s", element, element->name);
 698
 699         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
 700                 return -EINVAL;
 701
 702         property = g_try_new0(struct connman_property, 1);
 703         if (property == NULL)
 704                 return -ENOMEM;
 705
 706         property->id   = CONNMAN_PROPERTY_ID_INVALID;
 707         property->type = type;
 708
 709         DBG("name %s type %d value %p", name, type, value);
 710
 711         switch (type) {
 712         case DBUS_TYPE_STRING:
 713                 property->value = g_strdup(*((const char **) value));
 714                 break;
 715         case DBUS_TYPE_BOOLEAN:
 716         case DBUS_TYPE_BYTE:
 717                 property->value = g_try_malloc(1);
 718                 if (property->value != NULL)
 719                         memcpy(property->value, value, 1);
 720                 break;
 721         }
 722
 723         __connman_element_lock(element);
 724
 725         g_hash_table_replace(element->properties, g_strdup(name), property);
 726
 727         __connman_element_unlock(element);
 728
 729         return 0;
 730 }
 731
 732 static int set_static_array_property(struct connman_element *element,
 733                         const char *name, int type, const void *value, int len)
 734 {
 735         struct connman_property *property;
 736
 737         DBG("element %p name %s", element, element->name);
 738
 739         if (type != DBUS_TYPE_BYTE)
 740                 return -EINVAL;
 741
 742         property = g_try_new0(struct connman_property, 1);
 743         if (property == NULL)
 744                 return -ENOMEM;
 745
 746         property->id      = CONNMAN_PROPERTY_ID_INVALID;
 747         property->type    = DBUS_TYPE_ARRAY;
 748         property->subtype = type;
 749
 750         DBG("name %s type %d value %p", name, type, value);
 751
 752         switch (type) {
 753         case DBUS_TYPE_BYTE:
 754                 property->value = g_try_malloc(len);
 755                 if (property->value != NULL) {
 756                         memcpy(property->value,
 757                                 *((const unsigned char **) value), len);
 758                         property->size = len;
 759                 }
 760                 break;
 761         }
 762
 763         __connman_element_lock(element);
 764
 765         g_hash_table_replace(element->properties, g_strdup(name), property);
 766
 767         __connman_element_unlock(element);
 768
 769         return 0;
 770 }
 771
 772 #if 0
 773 static int set_property(struct connman_element *element,
 774                                 enum connman_property_id id, const void *value)
 775 {
 776         switch (id) {
 777         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
 778                 __connman_element_lock(element);
 779                 g_free(element->ipv4.address);
 780                 element->ipv4.address = g_strdup(*((const char **) value));
 781                 __connman_element_unlock(element);
 782                 break;
 783         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
 784                 __connman_element_lock(element);
 785                 g_free(element->ipv4.netmask);
 786                 element->ipv4.netmask = g_strdup(*((const char **) value));
 787                 __connman_element_unlock(element);
 788                 break;
 789         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
 790                 __connman_element_lock(element);
 791                 g_free(element->ipv4.gateway);
 792                 element->ipv4.gateway = g_strdup(*((const char **) value));
 793                 __connman_element_unlock(element);
 794                 break;
 795         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
 796                 __connman_element_lock(element);
 797                 g_free(element->ipv4.broadcast);
 798                 element->ipv4.broadcast = g_strdup(*((const char **) value));
 799                 __connman_element_unlock(element);
 800                 break;
 801         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
 802                 __connman_element_lock(element);
 803                 g_free(element->ipv4.nameserver);
 804                 element->ipv4.nameserver = g_strdup(*((const char **) value));
 805                 __connman_element_unlock(element);
 806                 break;
 807         default:
 808                 return -EINVAL;
 809         }
 810
 811         return 0;
 812 }
 813 #endif
 814
 815 int connman_element_get_value(struct connman_element *element,
 816                                 enum connman_property_id id, void *value)
 817 {
 818         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 819                 return -EINVAL;
 820
 821         switch (id) {
 822         case CONNMAN_PROPERTY_ID_IPV4_METHOD:
 823                 if (element->ipv4.method == CONNMAN_IPCONFIG_METHOD_UNKNOWN)
 824                         return connman_element_get_value(element->parent,
 825                                                                 id, value);
 826                 __connman_element_lock(element);
 827                 *((const char **) value) = __connman_ipconfig_method2string(element->ipv4.method);
 828                 __connman_element_unlock(element);
 829                 break;
 830         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
 831                 if (element->ipv4.address == NULL)
 832                         return connman_element_get_value(element->parent,
 833                                                                 id, value);
 834                 __connman_element_lock(element);
 835                 *((char **) value) = element->ipv4.address;
 836                 __connman_element_unlock(element);
 837                 break;
 838         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
 839                 if (element->ipv4.netmask == NULL)
 840                         return connman_element_get_value(element->parent,
 841                                                                 id, value);
 842                 __connman_element_lock(element);
 843                 *((char **) value) = element->ipv4.netmask;
 844                 __connman_element_unlock(element);
 845                 break;
 846         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
 847                 if (element->ipv4.gateway == NULL)
 848                         return connman_element_get_value(element->parent,
 849                                                                 id, value);
 850                 __connman_element_lock(element);
 851                 *((char **) value) = element->ipv4.gateway;
 852                 __connman_element_unlock(element);
 853                 break;
 854         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
 855                 if (element->ipv4.broadcast == NULL)
 856                         return connman_element_get_value(element->parent,
 857                                                                 id, value);
 858                 __connman_element_lock(element);
 859                 *((char **) value) = element->ipv4.broadcast;
 860                 __connman_element_unlock(element);
 861                 break;
 862         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
 863                 if (element->ipv4.nameserver == NULL)
 864                         return connman_element_get_value(element->parent,
 865                                                                 id, value);
 866                 __connman_element_lock(element);
 867                 *((char **) value) = element->ipv4.nameserver;
 868                 __connman_element_unlock(element);
 869                 break;
 870         default:
 871                 return -EINVAL;
 872         }
 873
 874         return 0;
 875 }
 876
 877 static gboolean get_static_property(struct connman_element *element,
 878                                                 const char *name, void *value)
 879 {
 880         struct connman_property *property;
 881         gboolean found = FALSE;
 882
 883         DBG("element %p name %s", element, element->name);
 884
 885         __connman_element_lock(element);
 886
 887         property = g_hash_table_lookup(element->properties, name);
 888         if (property != NULL) {
 889                 switch (property->type) {
 890                 case DBUS_TYPE_STRING:
 891                         *((char **) value) = property->value;
 892                         found = TRUE;
 893                         break;
 894                 case DBUS_TYPE_BOOLEAN:
 895                 case DBUS_TYPE_BYTE:
 896                         memcpy(value, property->value, 1);
 897                         found = TRUE;
 898                         break;
 899                 }
 900         }
 901
 902         __connman_element_unlock(element);
 903
 904         if (found == FALSE && element->parent != NULL)
 905                 return get_static_property(element->parent, name, value);
 906
 907         return found;
 908 }
 909
 910 static gboolean get_static_array_property(struct connman_element *element,
 911                         const char *name, void *value, unsigned int *len)
 912 {
 913         struct connman_property *property;
 914         gboolean found = FALSE;
 915
 916         DBG("element %p name %s", element, element->name);
 917
 918         __connman_element_lock(element);
 919
 920         property = g_hash_table_lookup(element->properties, name);
 921         if (property != NULL) {
 922                 *((void **) value) = property->value;
 923                 *len = property->size;
 924                 found = TRUE;
 925         }
 926
 927         __connman_element_unlock(element);
 928
 929         return found;
 930 }
 931
 932 #if 0
 933 static gboolean match_static_property(struct connman_element *element,
 934                                         const char *name, const void *value)
 935 {
 936         struct connman_property *property;
 937         gboolean result = FALSE;
 938
 939         DBG("element %p name %s", element, element->name);
 940
 941         __connman_element_lock(element);
 942
 943         property = g_hash_table_lookup(element->properties, name);
 944         if (property != NULL) {
 945                 if (property->type == DBUS_TYPE_STRING)
 946                         result = g_str_equal(property->value,
 947                                                 *((const char **) value));
 948         }
 949
 950         __connman_element_unlock(element);
 951
 952         return result;
 953 }
 954 #endif
 955
 956 /**
 957  * connman_element_set_string:
 958  * @element: element structure
 959  * @key: unique identifier
 960  * @value: string value
 961  *
 962  * Set string value for specific key
 963  */
 964 int connman_element_set_string(struct connman_element *element,
 965                                         const char *key, const char *value)
 966 {
 967         return set_static_property(element, key, DBUS_TYPE_STRING, &value);
 968 }
 969
 970 /**
 971  * connman_element_get_string:
 972  * @element: element structure
 973  * @key: unique identifier
 974  *
 975  * Get string value for specific key
 976  */
 977 const char *connman_element_get_string(struct connman_element *element,
 978                                                         const char *key)
 979 {
 980         const char *value;
 981
 982         if (get_static_property(element, key, &value) == FALSE)
 983                 return NULL;
 984
 985         return value;
 986 }
 987
 988 /**
 989  * connman_element_set_bool:
 990  * @element: element structure
 991  * @key: unique identifier
 992  * @value: boolean value
 993  *
 994  * Set boolean value for specific key
 995  */
 996 int connman_element_set_bool(struct connman_element *element,
 997                                         const char *key, connman_bool_t value)
 998 {
 999         return set_static_property(element, key, DBUS_TYPE_BOOLEAN, &value);
1000 }
1001
1002 /**
1003  * connman_element_get_bool:
1004  * @element: element structure
1005  * @key: unique identifier
1006  *
1007  * Get boolean value for specific key
1008  */
1009 connman_bool_t connman_element_get_bool(struct connman_element *element,
1010                                                         const char *key)
1011 {
1012         connman_bool_t value;
1013
1014         if (get_static_property(element, key, &value) == FALSE)
1015                 return FALSE;
1016
1017         return value;
1018 }
1019
1020 /**
1021  * connman_element_set_uint8:
1022  * @element: element structure
1023  * @key: unique identifier
1024  * @value: integer value
1025  *
1026  * Set integer value for specific key
1027  */
1028 int connman_element_set_uint8(struct connman_element *element,
1029                                         const char *key, connman_uint8_t value)
1030 {
1031         return set_static_property(element, key, DBUS_TYPE_BYTE, &value);
1032 }
1033
1034 /**
1035  * connman_element_get_uint8:
1036  * @element: element structure
1037  * @key: unique identifier
1038  *
1039  * Get integer value for specific key
1040  */
1041 connman_uint8_t connman_element_get_uint8(struct connman_element *element,
1042                                                         const char *key)
1043 {
1044         connman_uint8_t value;
1045
1046         if (get_static_property(element, key, &value) == FALSE)
1047                 return 0;
1048
1049         return value;
1050 }
1051
1052 /**
1053  * connman_element_set_blob:
1054  * @element: element structure
1055  * @key: unique identifier
1056  * @data: blob data
1057  * @size: blob size
1058  *
1059  * Set binary blob value for specific key
1060  */
1061 int connman_element_set_blob(struct connman_element *element,
1062                         const char *key, const void *data, unsigned int size)
1063 {
1064         return set_static_array_property(element, key,
1065                                                 DBUS_TYPE_BYTE, &data, size);
1066 }
1067
1068 /**
1069  * connman_element_get_blob:
1070  * @element: element structure
1071  * @key: unique identifier
1072  * @size: pointer to blob size
1073  *
1074  * Get binary blob value for specific key
1075  */
1076 const void *connman_element_get_blob(struct connman_element *element,
1077                                         const char *key, unsigned int *size)
1078 {
1079         void *value;
1080
1081         if (get_static_array_property(element, key, &value, size) == FALSE)
1082                 return NULL;
1083
1084         return value;
1085 }
1086
1087 int __connman_element_append_ipv4(struct connman_element *element,
1088                                                 DBusMessageIter *dict)
1089 {
1090         const char *method = NULL;
1091         const char *address = NULL, *netmask = NULL, *gateway = NULL;
1092         const char *broadcast = NULL, *nameserver = NULL;
1093
1094         connman_element_get_value(element,
1095                                 CONNMAN_PROPERTY_ID_IPV4_METHOD, &method);
1096
1097         connman_element_get_value(element,
1098                                 CONNMAN_PROPERTY_ID_IPV4_ADDRESS, &address);
1099         connman_element_get_value(element,
1100                                 CONNMAN_PROPERTY_ID_IPV4_NETMASK, &netmask);
1101         connman_element_get_value(element,
1102                                 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
1103         connman_element_get_value(element,
1104                         CONNMAN_PROPERTY_ID_IPV4_BROADCAST, &broadcast);
1105         connman_element_get_value(element,
1106                         CONNMAN_PROPERTY_ID_IPV4_NAMESERVER, &nameserver);
1107
1108         if (method != NULL)
1109                 connman_dbus_dict_append_variant(dict, "IPv4.Method",
1110                                                 DBUS_TYPE_STRING, &method);
1111
1112         if (address != NULL)
1113                 connman_dbus_dict_append_variant(dict, "IPv4.Address",
1114                                                 DBUS_TYPE_STRING, &address);
1115
1116         if (netmask != NULL)
1117                 connman_dbus_dict_append_variant(dict, "IPv4.Netmask",
1118                                                 DBUS_TYPE_STRING, &netmask);
1119
1120         if (gateway != NULL)
1121                 connman_dbus_dict_append_variant(dict, "IPv4.Gateway",
1122                                                 DBUS_TYPE_STRING, &gateway);
1123
1124         if (broadcast != NULL)
1125                 connman_dbus_dict_append_variant(dict, "IPv4.Broadcast",
1126                                                 DBUS_TYPE_STRING, &broadcast);
1127
1128         if (nameserver != NULL)
1129                 connman_dbus_dict_append_variant(dict, "IPv4.Nameserver",
1130                                                 DBUS_TYPE_STRING, &nameserver);
1131
1132         return 0;
1133 }
1134
1135 int __connman_element_set_ipv4(struct connman_element *element,
1136                                 const char *name, DBusMessageIter *value)
1137 {
1138         int type;
1139
1140         type = dbus_message_iter_get_arg_type(value);
1141
1142         if (g_str_equal(name, "IPv4.Method") == TRUE) {
1143                 enum connman_ipconfig_method method;
1144                 const char *str;
1145
1146                 if (type != DBUS_TYPE_STRING)
1147                         return -EINVAL;
1148
1149                 dbus_message_iter_get_basic(value, &str);
1150                 method = __connman_ipconfig_string2method(str);
1151                 if (method == CONNMAN_IPCONFIG_METHOD_UNKNOWN)
1152                         return -EINVAL;
1153
1154                 if (method == element->ipv4.method)
1155                         return -EALREADY;
1156
1157                 element->ipv4.method = method;
1158
1159                 connman_element_update(element);
1160         } else if (g_str_equal(name, "IPv4.Address") == TRUE) {
1161                 const char *address;
1162
1163                 if (type != DBUS_TYPE_STRING)
1164                         return -EINVAL;
1165
1166                 dbus_message_iter_get_basic(value, &address);
1167
1168                 g_free(element->ipv4.address);
1169                 element->ipv4.address = g_strdup(address);
1170
1171                 connman_element_update(element);
1172         } else if (g_str_equal(name, "IPv4.Netmask") == TRUE) {
1173                 const char *netmask;
1174
1175                 if (type != DBUS_TYPE_STRING)
1176                         return -EINVAL;
1177
1178                 dbus_message_iter_get_basic(value, &netmask);
1179
1180                 g_free(element->ipv4.netmask);
1181                 element->ipv4.netmask = g_strdup(netmask);
1182
1183                 connman_element_update(element);
1184         } else if (g_str_equal(name, "IPv4.Gateway") == TRUE) {
1185                 const char *gateway;
1186
1187                 if (type != DBUS_TYPE_STRING)
1188                         return -EINVAL;
1189
1190                 dbus_message_iter_get_basic(value, &gateway);
1191
1192                 g_free(element->ipv4.gateway);
1193                 element->ipv4.gateway = g_strdup(gateway);
1194
1195                 connman_element_update(element);
1196         } else if (g_str_equal(name, "IPv4.Broadcast") == TRUE) {
1197                 const char *broadcast;
1198
1199                 if (type != DBUS_TYPE_STRING)
1200                         return -EINVAL;
1201
1202                 dbus_message_iter_get_basic(value, &broadcast);
1203
1204                 g_free(element->ipv4.broadcast);
1205                 element->ipv4.broadcast = g_strdup(broadcast);
1206
1207                 connman_element_update(element);
1208         } else if (g_str_equal(name, "IPv4.Nameserver") == TRUE) {
1209                 const char *nameserver;
1210
1211                 if (type != DBUS_TYPE_STRING)
1212                         return -EINVAL;
1213
1214                 dbus_message_iter_get_basic(value, &nameserver);
1215
1216                 g_free(element->ipv4.nameserver);
1217                 element->ipv4.nameserver = g_strdup(nameserver);
1218
1219                 connman_element_update(element);
1220         }
1221
1222         return 0;
1223 }
1224
1225 static void append_state(DBusMessageIter *entry, const char *state)
1226 {
1227         DBusMessageIter value;
1228         const char *key = "State";
1229
1230         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1231
1232         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1233                                         DBUS_TYPE_STRING_AS_STRING, &value);
1234         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &state);
1235         dbus_message_iter_close_container(entry, &value);
1236 }
1237
1238 static void emit_state_change(DBusConnection *conn, const char *state)
1239 {
1240         DBusMessage *signal;
1241         DBusMessageIter entry;
1242
1243         DBG("conn %p", conn);
1244
1245         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1246                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1247         if (signal == NULL)
1248                 return;
1249
1250         dbus_message_iter_init_append(signal, &entry);
1251
1252         append_state(&entry, state);
1253
1254         g_dbus_send_message(conn, signal);
1255
1256         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1257                                 CONNMAN_MANAGER_INTERFACE, "StateChanged");
1258         if (signal == NULL)
1259                 return;
1260
1261         dbus_message_iter_init_append(signal, &entry);
1262         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &state);
1263
1264         g_dbus_send_message(conn, signal);
1265 }
1266
1267 static void probe_element(struct connman_element *element)
1268 {
1269         GSList *list;
1270
1271         DBG("element %p name %s", element, element->name);
1272
1273         for (list = driver_list; list; list = list->next) {
1274                 struct connman_driver *driver = list->data;
1275
1276                 if (match_driver(element, driver) == FALSE)
1277                         continue;
1278
1279                 DBG("driver %p name %s", driver, driver->name);
1280
1281                 if (driver->probe(element) == 0) {
1282                         __connman_element_lock(element);
1283                         element->driver = driver;
1284                         __connman_element_unlock(element);
1285                         break;
1286                 }
1287         }
1288 }
1289
1290 static void register_element(gpointer data, gpointer user_data)
1291 {
1292         struct connman_element *element = data;
1293         const gchar *basepath;
1294         GNode *node;
1295
1296         __connman_element_lock(element);
1297
1298         if (element->parent) {
1299                 node = g_node_find(element_root, G_PRE_ORDER,
1300                                         G_TRAVERSE_ALL, element->parent);
1301                 basepath = element->parent->path;
1302         } else {
1303                 element->parent = element_root->data;
1304
1305                 node = element_root;
1306                 basepath = "/device";
1307         }
1308
1309         element->path = g_strdup_printf("%s/%s", basepath, element->name);
1310
1311         __connman_element_unlock(element);
1312
1313         if (node == NULL) {
1314                 connman_error("Element registration for %s failed",
1315                                                         element->path);
1316                 return;
1317         }
1318
1319         DBG("element %p path %s", element, element->path);
1320
1321         g_node_append_data(node, element);
1322
1323         if (element->type == CONNMAN_ELEMENT_TYPE_DHCP) {
1324                 element->parent->configuring = TRUE;
1325
1326 #if 0
1327                 if (__connman_element_count(NULL,
1328                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
1329                         emit_state_change(connection, "connecting");
1330 #endif
1331         }
1332
1333         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1334                 struct connman_element *parent = element->parent;
1335
1336                 while (parent) {
1337                         parent->configuring = FALSE;
1338                         parent = parent->parent;
1339                 }
1340
1341                 if (__connman_element_count(NULL,
1342                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 1)
1343                         emit_state_change(connection, "online");
1344         }
1345
1346         if (started == FALSE)
1347                 return;
1348
1349         probe_element(element);
1350 }
1351
1352 gboolean __connman_element_device_isfiltered(const char *devname)
1353 {
1354         if (device_filter == NULL)
1355                 goto nodevice;
1356
1357         if (g_pattern_match_simple(device_filter, devname) == FALSE) {
1358                 DBG("ignoring device %s (match)", devname);
1359                 return TRUE;
1360         }
1361
1362 nodevice:
1363         if (nodevice_filter == NULL)
1364                 return FALSE;
1365
1366         if (g_pattern_match_simple(nodevice_filter, devname) == TRUE) {
1367                 DBG("ignoring device %s (no match)", devname);
1368                 return TRUE;
1369         }
1370
1371         return FALSE;
1372 }
1373
1374 /**
1375  * connman_element_register:
1376  * @element: the element to register
1377  * @parent: the parent to register the element with
1378  *
1379  * Register an element with the core. It will be register under the given
1380  * parent of if %NULL is provided under the root element.
1381  *
1382  * Returns: %0 on success
1383  */
1384 int connman_element_register(struct connman_element *element,
1385                                         struct connman_element *parent)
1386 {
1387         DBG("element %p name %s parent %p", element, element->name, parent);
1388
1389         if (element->devname == NULL)
1390                 element->devname = g_strdup(element->name);
1391
1392         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
1393                 goto setup;
1394
1395         if (__connman_element_device_isfiltered(element->devname) == TRUE)
1396                 return -EPERM;
1397
1398 setup:
1399         if (connman_element_ref(element) == NULL)
1400                 return -EINVAL;
1401
1402         __connman_element_lock(element);
1403
1404         if (element->name == NULL) {
1405                 element->name = g_strdup(type2string(element->type));
1406                 if (element->name == NULL) {
1407                         __connman_element_unlock(element);
1408                         return -EINVAL;
1409                 }
1410         }
1411
1412         if (element->type == CONNMAN_ELEMENT_TYPE_DHCP)
1413                 element->ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
1414
1415         element->parent = parent;
1416
1417         __connman_element_unlock(element);
1418
1419         register_element(element, NULL);
1420
1421         return 0;
1422 }
1423
1424 static gboolean remove_element(GNode *node, gpointer user_data)
1425 {
1426         struct connman_element *element = node->data;
1427         struct connman_element *root = user_data;
1428
1429         DBG("element %p name %s", element, element->name);
1430
1431         if (element == root)
1432                 return FALSE;
1433
1434         if (node != NULL)
1435                 g_node_unlink(node);
1436
1437         if (element->driver) {
1438                 if (element->driver->remove)
1439                         element->driver->remove(element);
1440
1441                 __connman_element_lock(element);
1442                 element->driver = NULL;
1443                 __connman_element_unlock(element);
1444         }
1445
1446         if (node != NULL)
1447                 g_node_destroy(node);
1448
1449         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1450                 if (__connman_element_count(NULL,
1451                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
1452                         emit_state_change(connection, "offline");
1453         }
1454
1455         connman_element_unref(element);
1456
1457         return FALSE;
1458 }
1459
1460 void connman_element_unregister(struct connman_element *element)
1461 {
1462         GNode *node;
1463
1464         DBG("element %p name %s", element, element->name);
1465
1466         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1467
1468         if (node != NULL)
1469                 g_node_traverse(node, G_POST_ORDER,
1470                                 G_TRAVERSE_ALL, -1, remove_element, NULL);
1471 }
1472
1473 void connman_element_unregister_children(struct connman_element *element)
1474 {
1475         GNode *node;
1476
1477         DBG("element %p name %s", element, element->name);
1478
1479         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1480
1481         if (node != NULL)
1482                 g_node_traverse(node, G_POST_ORDER,
1483                                 G_TRAVERSE_ALL, -1, remove_element, element);
1484 }
1485
1486 static gboolean update_element(GNode *node, gpointer user_data)
1487 {
1488         struct connman_element *element = node->data;
1489
1490         DBG("element %p name %s", element, element->name);
1491
1492         if (element->driver && element->driver->update)
1493                 element->driver->update(element);
1494
1495         return FALSE;
1496 }
1497
1498 void connman_element_update(struct connman_element *element)
1499 {
1500         GNode *node;
1501
1502         DBG("element %p name %s", element, element->name);
1503
1504         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1505
1506         if (node != NULL)
1507                 g_node_traverse(node, G_PRE_ORDER,
1508                                 G_TRAVERSE_ALL, -1, update_element, element);
1509 }
1510
1511 int connman_element_set_enabled(struct connman_element *element,
1512                                                         gboolean enabled)
1513 {
1514         if (element->enabled == enabled)
1515                 return 0;
1516
1517         element->enabled = enabled;
1518
1519         connman_element_update(element);
1520
1521         return 0;
1522 }
1523
1524 static enum connman_service_error convert_error(enum connman_element_error error)
1525 {
1526         switch (error) {
1527         case CONNMAN_ELEMENT_ERROR_UNKNOWN:
1528         case CONNMAN_ELEMENT_ERROR_FAILED:
1529                 break;
1530         case CONNMAN_ELEMENT_ERROR_DHCP_FAILED:
1531                 return CONNMAN_SERVICE_ERROR_DHCP_FAILED;
1532         case CONNMAN_ELEMENT_ERROR_CONNECT_FAILED:
1533                 return CONNMAN_SERVICE_ERROR_CONNECT_FAILED;
1534         }
1535
1536         return CONNMAN_SERVICE_ERROR_UNKNOWN;
1537 }
1538
1539 /**
1540  * connman_element_set_error:
1541  * @element: element structure
1542  * @error: error identifier
1543  *
1544  * Set error state and specific error identifier
1545  */
1546 void connman_element_set_error(struct connman_element *element,
1547                                         enum connman_element_error error)
1548 {
1549         struct connman_service *service;
1550
1551         DBG("element %p error %d", element, error);
1552
1553         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1554                 return;
1555
1556         element->state = CONNMAN_ELEMENT_STATE_ERROR;
1557         element->error = error;
1558
1559         if (element->driver && element->driver->change)
1560                 element->driver->change(element);
1561
1562         service = __connman_element_get_service(element);
1563         __connman_service_indicate_error(service, convert_error(error));
1564 }
1565
1566 int __connman_element_init(const char *device, const char *nodevice)
1567 {
1568         struct connman_element *element;
1569
1570         DBG("");
1571
1572         connection = connman_dbus_get_connection();
1573         if (connection == NULL)
1574                 return -EIO;
1575
1576         device_filter = g_strdup(device);
1577         nodevice_filter = g_strdup(nodevice);
1578
1579         element = connman_element_create("root");
1580
1581         element->path = g_strdup("/");
1582         element->type = CONNMAN_ELEMENT_TYPE_ROOT;
1583
1584         element_root = g_node_new(element);
1585
1586         __connman_notifier_init();
1587         __connman_service_init();
1588         __connman_provider_init();
1589         __connman_network_init();
1590         __connman_device_init();
1591
1592         return 0;
1593 }
1594
1595 static gboolean probe_node(GNode *node, gpointer data)
1596 {
1597         struct connman_element *element = node->data;
1598
1599         DBG("element %p name %s", element, element->name);
1600
1601         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1602                 return FALSE;
1603
1604         if (element->driver)
1605                 return FALSE;
1606
1607         probe_element(element);
1608
1609         return FALSE;
1610 }
1611
1612 void __connman_element_start(void)
1613 {
1614         DBG("");
1615
1616         __connman_storage_init_profile();
1617
1618         g_node_traverse(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1619                                                         probe_node, NULL);
1620
1621         started = TRUE;
1622
1623         __connman_rtnl_start();
1624         __connman_udev_start();
1625
1626         __connman_connection_init();
1627         __connman_ipv4_init();
1628         __connman_dhcp_init();
1629
1630         if (__connman_rfkill_init() < 0)
1631                 __connman_udev_enable_rfkill_processing();
1632 }
1633
1634 void __connman_element_stop(void)
1635 {
1636         DBG("");
1637
1638         __connman_rfkill_cleanup();
1639
1640         __connman_dhcp_cleanup();
1641         __connman_ipv4_cleanup();
1642         __connman_provider_cleanup();
1643         __connman_connection_cleanup();
1644 }
1645
1646 static gboolean free_driver(GNode *node, gpointer data)
1647 {
1648         struct connman_element *element = node->data;
1649
1650         DBG("element %p name %s", element, element->name);
1651
1652         if (element->driver) {
1653                 if (element->driver->remove)
1654                         element->driver->remove(element);
1655
1656                 __connman_element_lock(element);
1657                 element->driver = NULL;
1658                 __connman_element_unlock(element);
1659         }
1660
1661         return FALSE;
1662 }
1663
1664 static gboolean free_node(GNode *node, gpointer data)
1665 {
1666         struct connman_element *element = node->data;
1667
1668         DBG("element %p name %s", element, element->name);
1669
1670         if (g_node_depth(node) > 1)
1671                 connman_element_unregister(element);
1672
1673         return FALSE;
1674 }
1675
1676 void __connman_element_cleanup(void)
1677 {
1678         DBG("");
1679
1680         __connman_device_cleanup();
1681         __connman_network_cleanup();
1682         __connman_service_cleanup();
1683         __connman_notifier_cleanup();
1684
1685         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1686                                                         free_driver, NULL);
1687
1688         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1689                                                         free_node, NULL);
1690
1691         g_node_destroy(element_root);
1692         element_root = NULL;
1693
1694         g_free(nodevice_filter);
1695         g_free(device_filter);
1696
1697         if (connection == NULL)
1698                 return;
1699
1700         dbus_connection_unref(connection);
1701 }