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