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