src/element.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2009  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <stdarg.h>
  28 #include <string.h>
  29
  30 #include <glib.h>
  31 #include <gdbus.h>
  32
  33 #include "connman.h"
  34
  35 static DBusConnection *connection;
  36
  37 static GNode *element_root = NULL;
  38 static GSList *driver_list = NULL;
  39 static gchar *device_filter = NULL;
  40 static gchar *nodevice_filter = NULL;
  41
  42 static gboolean started = FALSE;
  43
  44 static const char *type2string(enum connman_element_type type)
  45 {
  46         switch (type) {
  47         case CONNMAN_ELEMENT_TYPE_UNKNOWN:
  48                 return "unknown";
  49         case CONNMAN_ELEMENT_TYPE_ROOT:
  50                 return "root";
  51         case CONNMAN_ELEMENT_TYPE_PROFILE:
  52                 return "profile";
  53         case CONNMAN_ELEMENT_TYPE_DEVICE:
  54                 return "device";
  55         case CONNMAN_ELEMENT_TYPE_NETWORK:
  56                 return "network";
  57         case CONNMAN_ELEMENT_TYPE_SERVICE:
  58                 return "service";
  59         case CONNMAN_ELEMENT_TYPE_IPV4:
  60                 return "ipv4";
  61         case CONNMAN_ELEMENT_TYPE_IPV6:
  62                 return "ipv6";
  63         case CONNMAN_ELEMENT_TYPE_DHCP:
  64                 return "dhcp";
  65         case CONNMAN_ELEMENT_TYPE_BOOTP:
  66                 return "bootp";
  67         case CONNMAN_ELEMENT_TYPE_ZEROCONF:
  68                 return "zeroconf";
  69         case CONNMAN_ELEMENT_TYPE_CONNECTION:
  70                 return "connection";
  71         case CONNMAN_ELEMENT_TYPE_VENDOR:
  72                 return "vendor";
  73         }
  74
  75         return NULL;
  76 }
  77
  78 struct foreach_data {
  79         enum connman_element_type type;
  80         element_cb_t callback;
  81         gpointer user_data;
  82 };
  83
  84 static gboolean foreach_callback(GNode *node, gpointer user_data)
  85 {
  86         struct connman_element *element = node->data;
  87         struct foreach_data *data = user_data;
  88
  89         DBG("element %p name %s", element, element->name);
  90
  91         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
  92                 return FALSE;
  93
  94         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
  95                                         data->type != element->type)
  96                 return FALSE;
  97
  98         if (data->callback)
  99                 data->callback(element, data->user_data);
 100
 101         return FALSE;
 102 }
 103
 104 void __connman_element_foreach(struct connman_element *element,
 105                                 enum connman_element_type type,
 106                                 element_cb_t callback, gpointer user_data)
 107 {
 108         struct foreach_data data = { type, callback, user_data };
 109         GNode *node;
 110
 111         DBG("");
 112
 113         if (element != NULL) {
 114                 node = g_node_find(element_root, G_PRE_ORDER,
 115                                                 G_TRAVERSE_ALL, element);
 116                 if (node == NULL)
 117                         return;
 118         } else
 119                 node = element_root;
 120
 121         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 122                                                 foreach_callback, &data);
 123 }
 124
 125 struct append_filter {
 126         enum connman_element_type type;
 127         DBusMessageIter *iter;
 128 };
 129
 130 static gboolean append_path(GNode *node, gpointer user_data)
 131 {
 132         struct connman_element *element = node->data;
 133         struct append_filter *filter = user_data;
 134
 135         DBG("element %p name %s", element, element->name);
 136
 137         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 138                 return FALSE;
 139
 140         if (filter->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 141                                         filter->type != element->type)
 142                 return FALSE;
 143
 144         if (filter->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 145                         __connman_device_has_driver(element->device) == FALSE)
 146                 return FALSE;
 147
 148         if (filter->type == CONNMAN_ELEMENT_TYPE_NETWORK &&
 149                         __connman_network_has_driver(element->network) == FALSE)
 150                 return FALSE;
 151
 152         dbus_message_iter_append_basic(filter->iter,
 153                                 DBUS_TYPE_OBJECT_PATH, &element->path);
 154
 155         return FALSE;
 156 }
 157
 158 void __connman_element_list(struct connman_element *element,
 159                                         enum connman_element_type type,
 160                                                         DBusMessageIter *iter)
 161 {
 162         struct append_filter filter = { type, iter };
 163         GNode *node;
 164
 165         DBG("");
 166
 167         if (element != NULL) {
 168                 node = g_node_find(element_root, G_PRE_ORDER,
 169                                                 G_TRAVERSE_ALL, element);
 170                 if (node == NULL)
 171                         return;
 172         } else
 173                 node = element_root;
 174
 175         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 176                                                 append_path, &filter);
 177 }
 178
 179 struct count_data {
 180         enum connman_element_type type;
 181         int count;
 182 };
 183
 184 static gboolean count_element(GNode *node, gpointer user_data)
 185 {
 186         struct connman_element *element = node->data;
 187         struct count_data *data = user_data;
 188
 189         DBG("element %p name %s", element, element->name);
 190
 191         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 192                 return FALSE;
 193
 194         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 195                                         data->type != element->type)
 196                 return FALSE;
 197
 198         data->count++;
 199
 200         return FALSE;
 201 }
 202
 203 int __connman_element_count(struct connman_element *element,
 204                                         enum connman_element_type type)
 205 {
 206         struct count_data data = { type, 0 };
 207         GNode *node;
 208
 209         DBG("");
 210
 211         if (element != NULL) {
 212                 node = g_node_find(element_root, G_PRE_ORDER,
 213                                                 G_TRAVERSE_ALL, element);
 214                 if (node == NULL)
 215                         return 0;
 216         } else
 217                 node = element_root;
 218
 219         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 220                                                 count_element, &data);
 221
 222         return data.count;
 223 }
 224
 225 static struct connman_network *__connman_element_get_network(struct connman_element *element)
 226 {
 227         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK &&
 228                                                 element->network != NULL)
 229                 return element->network;
 230
 231         if (element->parent == NULL)
 232                 return NULL;
 233
 234         return __connman_element_get_network(element->parent);
 235 }
 236
 237 struct connman_service *__connman_element_get_service(struct connman_element *element)
 238 {
 239         struct connman_service *service = NULL;
 240         struct connman_network *network;
 241         struct connman_device *device;
 242         enum connman_device_type type;
 243
 244         device = __connman_element_get_device(element);
 245         if (device == NULL)
 246                 return NULL;
 247
 248         type = connman_device_get_type(device);
 249
 250         switch (type) {
 251         case CONNMAN_DEVICE_TYPE_UNKNOWN:
 252         case CONNMAN_DEVICE_TYPE_VENDOR:
 253         case CONNMAN_DEVICE_TYPE_GPS:
 254                 break;
 255         case CONNMAN_DEVICE_TYPE_ETHERNET:
 256         case CONNMAN_DEVICE_TYPE_WIFI:
 257         case CONNMAN_DEVICE_TYPE_WIMAX:
 258         case CONNMAN_DEVICE_TYPE_BLUETOOTH:
 259         case CONNMAN_DEVICE_TYPE_CELLULAR:
 260         case CONNMAN_DEVICE_TYPE_MBM:
 261         case CONNMAN_DEVICE_TYPE_HSO:
 262                 network = __connman_element_get_network(element);
 263                 if (network == NULL)
 264                         return NULL;
 265                 service = __connman_service_lookup_from_network(network);
 266                 break;
 267         }
 268
 269         return service;
 270 }
 271
 272 struct connman_device *__connman_element_get_device(struct connman_element *element)
 273 {
 274         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 275                                                 element->device != NULL)
 276                 return element->device;
 277
 278         if (element->parent == NULL)
 279                 return NULL;
 280
 281         return __connman_element_get_device(element->parent);
 282 }
 283
 284 const char *__connman_element_get_device_path(struct connman_element *element)
 285 {
 286         struct connman_device *device;
 287
 288         device = __connman_element_get_device(element);
 289         if (device == NULL)
 290                 return NULL;
 291
 292         return connman_device_get_path(device);
 293 }
 294
 295 const char *__connman_element_get_network_path(struct connman_element *element)
 296 {
 297         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK &&
 298                                                 element->network != NULL)
 299                 return element->path;
 300
 301         if (element->parent == NULL)
 302                 return NULL;
 303
 304         return __connman_element_get_network_path(element->parent);
 305 }
 306
 307 struct find_data {
 308         enum connman_service_type type;
 309         struct connman_device *device;
 310 };
 311
 312 static gboolean find_device(GNode *node, gpointer user_data)
 313 {
 314         struct connman_element *element = node->data;
 315         struct find_data *data = user_data;
 316
 317         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 318                 return FALSE;
 319
 320         if (element->device == NULL)
 321                 return FALSE;
 322
 323         if (data->type != connman_device_get_type(element->device))
 324                 return FALSE;
 325
 326         data->device = element->device;
 327
 328         return TRUE;
 329 }
 330
 331 struct connman_device *__connman_element_find_device(enum connman_service_type type)
 332 {
 333         struct find_data data = { .type = type, .device = NULL };
 334
 335         g_node_traverse(element_root, G_PRE_ORDER,
 336                                 G_TRAVERSE_ALL, -1, find_device, &data);
 337
 338         return data.device;
 339 }
 340
 341 static gboolean request_scan(GNode *node, gpointer user_data)
 342 {
 343         struct connman_element *element = node->data;
 344         struct find_data *data = user_data;
 345         enum connman_service_type type;
 346
 347         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 348                 return FALSE;
 349
 350         if (element->device == NULL)
 351                 return FALSE;
 352
 353         type = __connman_device_get_service_type(element->device);
 354
 355         switch (type) {
 356         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 357         case CONNMAN_SERVICE_TYPE_SYSTEM:
 358         case CONNMAN_SERVICE_TYPE_ETHERNET:
 359         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 360         case CONNMAN_SERVICE_TYPE_CELLULAR:
 361         case CONNMAN_SERVICE_TYPE_VPN:
 362                 return FALSE;
 363         case CONNMAN_SERVICE_TYPE_WIFI:
 364         case CONNMAN_SERVICE_TYPE_WIMAX:
 365                 if (data->type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
 366                                                         data->type != type)
 367                         return FALSE;
 368                 break;
 369         }
 370
 371         __connman_device_scan(element->device);
 372
 373         return FALSE;
 374 }
 375
 376 int __connman_element_request_scan(enum connman_service_type type)
 377 {
 378         struct find_data data = { .type = type, .device = NULL };
 379
 380         g_node_traverse(element_root, G_PRE_ORDER,
 381                                 G_TRAVERSE_ALL, -1, request_scan, &data);
 382
 383         return 0;
 384 }
 385
 386 static gboolean enable_technology(GNode *node, gpointer user_data)
 387 {
 388         struct connman_element *element = node->data;
 389         struct find_data *data = user_data;
 390         enum connman_service_type type;
 391
 392         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 393                 return FALSE;
 394
 395         if (element->device == NULL)
 396                 return FALSE;
 397
 398         type = __connman_device_get_service_type(element->device);
 399
 400         switch (type) {
 401         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 402         case CONNMAN_SERVICE_TYPE_SYSTEM:
 403         case CONNMAN_SERVICE_TYPE_VPN:
 404                 return FALSE;
 405         case CONNMAN_SERVICE_TYPE_ETHERNET:
 406         case CONNMAN_SERVICE_TYPE_WIFI:
 407         case CONNMAN_SERVICE_TYPE_WIMAX:
 408         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 409         case CONNMAN_SERVICE_TYPE_CELLULAR:
 410                 if (data->type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
 411                                                         data->type != type)
 412                         return FALSE;
 413                 break;
 414         }
 415
 416         __connman_device_enable_persistent(element->device);
 417
 418         return FALSE;
 419 }
 420
 421 int __connman_element_enable_technology(enum connman_service_type type)
 422 {
 423         struct find_data data = { .type = type, .device = NULL };
 424
 425         g_node_traverse(element_root, G_PRE_ORDER,
 426                                 G_TRAVERSE_ALL, -1, enable_technology, &data);
 427
 428         return 0;
 429 }
 430
 431 static gboolean disable_technology(GNode *node, gpointer user_data)
 432 {
 433         struct connman_element *element = node->data;
 434         struct find_data *data = user_data;
 435         enum connman_service_type type;
 436
 437         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 438                 return FALSE;
 439
 440         if (element->device == NULL)
 441                 return FALSE;
 442
 443         type = __connman_device_get_service_type(element->device);
 444
 445         switch (type) {
 446         case CONNMAN_SERVICE_TYPE_UNKNOWN:
 447         case CONNMAN_SERVICE_TYPE_SYSTEM:
 448         case CONNMAN_SERVICE_TYPE_VPN:
 449                 return FALSE;
 450         case CONNMAN_SERVICE_TYPE_ETHERNET:
 451         case CONNMAN_SERVICE_TYPE_WIFI:
 452         case CONNMAN_SERVICE_TYPE_WIMAX:
 453         case CONNMAN_SERVICE_TYPE_BLUETOOTH:
 454         case CONNMAN_SERVICE_TYPE_CELLULAR:
 455                 if (data->type != CONNMAN_SERVICE_TYPE_UNKNOWN &&
 456                                                         data->type != type)
 457                         return FALSE;
 458                 break;
 459         }
 460
 461         __connman_device_disable_persistent(element->device);
 462
 463         return FALSE;
 464 }
 465
 466 int __connman_element_disable_technology(enum connman_service_type type)
 467 {
 468         struct find_data data = { .type = type, .device = NULL };
 469
 470         g_node_traverse(element_root, G_PRE_ORDER,
 471                                 G_TRAVERSE_ALL, -1, disable_technology, &data);
 472
 473         return 0;
 474 }
 475
 476 static gint compare_priority(gconstpointer a, gconstpointer b)
 477 {
 478         const struct connman_driver *driver1 = a;
 479         const struct connman_driver *driver2 = b;
 480
 481         return driver2->priority - driver1->priority;
 482 }
 483
 484 static gboolean match_driver(struct connman_element *element,
 485                                         struct connman_driver *driver)
 486 {
 487         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 488                 return FALSE;
 489
 490         if (element->type == driver->type ||
 491                         driver->type == CONNMAN_ELEMENT_TYPE_UNKNOWN)
 492                 return TRUE;
 493
 494         return FALSE;
 495 }
 496
 497 static gboolean probe_driver(GNode *node, gpointer data)
 498 {
 499         struct connman_element *element = node->data;
 500         struct connman_driver *driver = data;
 501
 502         DBG("element %p name %s", element, element->name);
 503
 504         if (!element->driver && match_driver(element, driver) == TRUE) {
 505                 if (driver->probe(element) < 0)
 506                         return FALSE;
 507
 508                 __connman_element_lock(element);
 509                 element->driver = driver;
 510                 __connman_element_unlock(element);
 511         }
 512
 513         return FALSE;
 514 }
 515
 516 void __connman_driver_rescan(struct connman_driver *driver)
 517 {
 518         DBG("driver %p name %s", driver, driver->name);
 519
 520         if (!driver->probe)
 521                 return;
 522
 523         if (element_root != NULL)
 524                 g_node_traverse(element_root, G_PRE_ORDER,
 525                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 526 }
 527
 528 /**
 529  * connman_driver_register:
 530  * @driver: driver definition
 531  *
 532  * Register a new driver
 533  *
 534  * Returns: %0 on success
 535  */
 536 int connman_driver_register(struct connman_driver *driver)
 537 {
 538         DBG("driver %p name %s", driver, driver->name);
 539
 540         if (driver->type == CONNMAN_ELEMENT_TYPE_ROOT)
 541                 return -EINVAL;
 542
 543         if (!driver->probe)
 544                 return -EINVAL;
 545
 546         driver_list = g_slist_insert_sorted(driver_list, driver,
 547                                                         compare_priority);
 548
 549         if (started == FALSE)
 550                 return 0;
 551
 552         if (element_root != NULL)
 553                 g_node_traverse(element_root, G_PRE_ORDER,
 554                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 555
 556         return 0;
 557 }
 558
 559 static gboolean remove_driver(GNode *node, gpointer data)
 560 {
 561         struct connman_element *element = node->data;
 562         struct connman_driver *driver = data;
 563
 564         DBG("element %p name %s", element, element->name);
 565
 566         if (element->driver == driver) {
 567                 if (driver->remove)
 568                         driver->remove(element);
 569
 570                 __connman_element_lock(element);
 571                 element->driver = NULL;
 572                 __connman_element_unlock(element);
 573         }
 574
 575         return FALSE;
 576 }
 577
 578 /**
 579  * connman_driver_unregister:
 580  * @driver: driver definition
 581  *
 582  * Remove a previously registered driver
 583  */
 584 void connman_driver_unregister(struct connman_driver *driver)
 585 {
 586         DBG("driver %p name %s", driver, driver->name);
 587
 588         driver_list = g_slist_remove(driver_list, driver);
 589
 590         if (element_root != NULL)
 591                 g_node_traverse(element_root, G_POST_ORDER,
 592                                 G_TRAVERSE_ALL, -1, remove_driver, driver);
 593 }
 594
 595 static void unregister_property(gpointer data)
 596 {
 597         struct connman_property *property = data;
 598
 599         DBG("property %p", property);
 600
 601         g_free(property->value);
 602         g_free(property);
 603 }
 604
 605 void __connman_element_initialize(struct connman_element *element)
 606 {
 607         DBG("element %p", element);
 608
 609         element->refcount = 1;
 610
 611         element->name    = NULL;
 612         element->type    = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 613         element->state   = CONNMAN_ELEMENT_STATE_UNKNOWN;
 614         element->error   = CONNMAN_ELEMENT_ERROR_UNKNOWN;
 615         element->index   = -1;
 616         element->enabled = FALSE;
 617
 618         element->configuring = FALSE;
 619
 620         element->properties = g_hash_table_new_full(g_str_hash, g_str_equal,
 621                                                 g_free, unregister_property);
 622 }
 623
 624 /**
 625  * connman_element_create:
 626  * @name: element name
 627  *
 628  * Allocate a new element and assign the given #name to it. If the name
 629  * is #NULL, it will be later on created based on the element type.
 630  *
 631  * Returns: a newly-allocated #connman_element structure
 632  */
 633 struct connman_element *connman_element_create(const char *name)
 634 {
 635         struct connman_element *element;
 636
 637         element = g_try_new0(struct connman_element, 1);
 638         if (element == NULL)
 639                 return NULL;
 640
 641         DBG("element %p", element);
 642
 643         __connman_element_initialize(element);
 644
 645         return element;
 646 }
 647
 648 struct connman_element *connman_element_ref(struct connman_element *element)
 649 {
 650         DBG("element %p name %s refcount %d", element, element->name,
 651                                 g_atomic_int_get(&element->refcount) + 1);
 652
 653         g_atomic_int_inc(&element->refcount);
 654
 655         return element;
 656 }
 657
 658 static void free_properties(struct connman_element *element)
 659 {
 660         DBG("element %p name %s", element, element->name);
 661
 662         __connman_element_lock(element);
 663
 664         g_hash_table_destroy(element->properties);
 665         element->properties = NULL;
 666
 667         __connman_element_unlock(element);
 668 }
 669
 670 void connman_element_unref(struct connman_element *element)
 671 {
 672         DBG("element %p name %s refcount %d", element, element->name,
 673                                 g_atomic_int_get(&element->refcount) - 1);
 674
 675         if (g_atomic_int_dec_and_test(&element->refcount) == TRUE) {
 676                 if (element->destruct)
 677                         element->destruct(element);
 678                 free_properties(element);
 679                 g_free(element->ipv4.address);
 680                 g_free(element->ipv4.netmask);
 681                 g_free(element->ipv4.gateway);
 682                 g_free(element->ipv4.network);
 683                 g_free(element->ipv4.broadcast);
 684                 g_free(element->ipv4.nameserver);
 685                 g_free(element->ipv4.timeserver);
 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         case CONNMAN_PROPERTY_ID_IPV4_TIMESERVER:
 872                 if (element->ipv4.timeserver == NULL)
 873                         return connman_element_get_value(element->parent,
 874                                                                 id, value);
 875                 __connman_element_lock(element);
 876                 *((char **) value) = element->ipv4.timeserver;
 877                 __connman_element_unlock(element);
 878                 break;
 879         default:
 880                 return -EINVAL;
 881         }
 882
 883         return 0;
 884 }
 885
 886 static gboolean get_static_property(struct connman_element *element,
 887                                                 const char *name, void *value)
 888 {
 889         struct connman_property *property;
 890         gboolean found = FALSE;
 891
 892         DBG("element %p name %s", element, element->name);
 893
 894         __connman_element_lock(element);
 895
 896         property = g_hash_table_lookup(element->properties, name);
 897         if (property != NULL) {
 898                 switch (property->type) {
 899                 case DBUS_TYPE_STRING:
 900                         *((char **) value) = property->value;
 901                         found = TRUE;
 902                         break;
 903                 case DBUS_TYPE_BOOLEAN:
 904                 case DBUS_TYPE_BYTE:
 905                         memcpy(value, property->value, 1);
 906                         found = TRUE;
 907                         break;
 908                 }
 909         }
 910
 911         __connman_element_unlock(element);
 912
 913         if (found == FALSE && element->parent != NULL)
 914                 return get_static_property(element->parent, name, value);
 915
 916         return found;
 917 }
 918
 919 static gboolean get_static_array_property(struct connman_element *element,
 920                         const char *name, void *value, unsigned int *len)
 921 {
 922         struct connman_property *property;
 923         gboolean found = FALSE;
 924
 925         DBG("element %p name %s", element, element->name);
 926
 927         __connman_element_lock(element);
 928
 929         property = g_hash_table_lookup(element->properties, name);
 930         if (property != NULL) {
 931                 *((void **) value) = property->value;
 932                 *len = property->size;
 933                 found = TRUE;
 934         }
 935
 936         __connman_element_unlock(element);
 937
 938         return found;
 939 }
 940
 941 #if 0
 942 static gboolean match_static_property(struct connman_element *element,
 943                                         const char *name, const void *value)
 944 {
 945         struct connman_property *property;
 946         gboolean result = FALSE;
 947
 948         DBG("element %p name %s", element, element->name);
 949
 950         __connman_element_lock(element);
 951
 952         property = g_hash_table_lookup(element->properties, name);
 953         if (property != NULL) {
 954                 if (property->type == DBUS_TYPE_STRING)
 955                         result = g_str_equal(property->value,
 956                                                 *((const char **) value));
 957         }
 958
 959         __connman_element_unlock(element);
 960
 961         return result;
 962 }
 963 #endif
 964
 965 /**
 966  * connman_element_set_string:
 967  * @element: element structure
 968  * @key: unique identifier
 969  * @value: string value
 970  *
 971  * Set string value for specific key
 972  */
 973 int connman_element_set_string(struct connman_element *element,
 974                                         const char *key, const char *value)
 975 {
 976         return set_static_property(element, key, DBUS_TYPE_STRING, &value);
 977 }
 978
 979 /**
 980  * connman_element_get_string:
 981  * @element: element structure
 982  * @key: unique identifier
 983  *
 984  * Get string value for specific key
 985  */
 986 const char *connman_element_get_string(struct connman_element *element,
 987                                                         const char *key)
 988 {
 989         const char *value;
 990
 991         if (get_static_property(element, key, &value) == FALSE)
 992                 return NULL;
 993
 994         return value;
 995 }
 996
 997 /**
 998  * connman_element_set_bool:
 999  * @element: element structure
1000  * @key: unique identifier
1001  * @value: boolean value
1002  *
1003  * Set boolean value for specific key
1004  */
1005 int connman_element_set_bool(struct connman_element *element,
1006                                         const char *key, connman_bool_t value)
1007 {
1008         return set_static_property(element, key, DBUS_TYPE_BOOLEAN, &value);
1009 }
1010
1011 /**
1012  * connman_element_get_bool:
1013  * @element: element structure
1014  * @key: unique identifier
1015  *
1016  * Get boolean value for specific key
1017  */
1018 connman_bool_t connman_element_get_bool(struct connman_element *element,
1019                                                         const char *key)
1020 {
1021         connman_bool_t value;
1022
1023         if (get_static_property(element, key, &value) == FALSE)
1024                 return FALSE;
1025
1026         return value;
1027 }
1028
1029 /**
1030  * connman_element_set_uint8:
1031  * @element: element structure
1032  * @key: unique identifier
1033  * @value: integer value
1034  *
1035  * Set integer value for specific key
1036  */
1037 int connman_element_set_uint8(struct connman_element *element,
1038                                         const char *key, connman_uint8_t value)
1039 {
1040         return set_static_property(element, key, DBUS_TYPE_BYTE, &value);
1041 }
1042
1043 /**
1044  * connman_element_get_uint8:
1045  * @element: element structure
1046  * @key: unique identifier
1047  *
1048  * Get integer value for specific key
1049  */
1050 connman_uint8_t connman_element_get_uint8(struct connman_element *element,
1051                                                         const char *key)
1052 {
1053         connman_uint8_t value;
1054
1055         if (get_static_property(element, key, &value) == FALSE)
1056                 return 0;
1057
1058         return value;
1059 }
1060
1061 /**
1062  * connman_element_set_blob:
1063  * @element: element structure
1064  * @key: unique identifier
1065  * @data: blob data
1066  * @size: blob size
1067  *
1068  * Set binary blob value for specific key
1069  */
1070 int connman_element_set_blob(struct connman_element *element,
1071                         const char *key, const void *data, unsigned int size)
1072 {
1073         return set_static_array_property(element, key,
1074                                                 DBUS_TYPE_BYTE, &data, size);
1075 }
1076
1077 /**
1078  * connman_element_get_blob:
1079  * @element: element structure
1080  * @key: unique identifier
1081  * @size: pointer to blob size
1082  *
1083  * Get binary blob value for specific key
1084  */
1085 const void *connman_element_get_blob(struct connman_element *element,
1086                                         const char *key, unsigned int *size)
1087 {
1088         void *value;
1089
1090         if (get_static_array_property(element, key, &value, size) == FALSE)
1091                 return NULL;
1092
1093         return value;
1094 }
1095
1096 int __connman_element_append_ipv4(struct connman_element *element,
1097                                                 DBusMessageIter *dict)
1098 {
1099         const char *method = NULL;
1100         const char *address = NULL, *netmask = NULL, *gateway = NULL;
1101         const char *broadcast = NULL, *nameserver = NULL;
1102         const char *timeserver = NULL;
1103
1104         connman_element_get_value(element,
1105                                 CONNMAN_PROPERTY_ID_IPV4_METHOD, &method);
1106
1107         connman_element_get_value(element,
1108                                 CONNMAN_PROPERTY_ID_IPV4_ADDRESS, &address);
1109         connman_element_get_value(element,
1110                                 CONNMAN_PROPERTY_ID_IPV4_NETMASK, &netmask);
1111         connman_element_get_value(element,
1112                                 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
1113         connman_element_get_value(element,
1114                         CONNMAN_PROPERTY_ID_IPV4_BROADCAST, &broadcast);
1115         connman_element_get_value(element,
1116                         CONNMAN_PROPERTY_ID_IPV4_NAMESERVER, &nameserver);
1117         connman_element_get_value(element,
1118                         CONNMAN_PROPERTY_ID_IPV4_TIMESERVER, &timeserver);
1119
1120         if (method != NULL)
1121                 connman_dbus_dict_append_variant(dict, "IPv4.Method",
1122                                                 DBUS_TYPE_STRING, &method);
1123
1124         if (address != NULL)
1125                 connman_dbus_dict_append_variant(dict, "IPv4.Address",
1126                                                 DBUS_TYPE_STRING, &address);
1127
1128         if (netmask != NULL)
1129                 connman_dbus_dict_append_variant(dict, "IPv4.Netmask",
1130                                                 DBUS_TYPE_STRING, &netmask);
1131
1132         if (gateway != NULL)
1133                 connman_dbus_dict_append_variant(dict, "IPv4.Gateway",
1134                                                 DBUS_TYPE_STRING, &gateway);
1135
1136         if (broadcast != NULL)
1137                 connman_dbus_dict_append_variant(dict, "IPv4.Broadcast",
1138                                                 DBUS_TYPE_STRING, &broadcast);
1139
1140         if (nameserver != NULL)
1141                 connman_dbus_dict_append_variant(dict, "IPv4.Nameserver",
1142                                                 DBUS_TYPE_STRING, &nameserver);
1143
1144         if (timeserver != NULL)
1145                 connman_dbus_dict_append_variant(dict, "IPv4.Timeserver",
1146                                                 DBUS_TYPE_STRING, &timeserver);
1147
1148         return 0;
1149 }
1150
1151 int __connman_element_set_ipv4(struct connman_element *element,
1152                                 const char *name, DBusMessageIter *value)
1153 {
1154         int type;
1155
1156         type = dbus_message_iter_get_arg_type(value);
1157
1158         if (g_str_equal(name, "IPv4.Method") == TRUE) {
1159                 enum connman_ipconfig_method method;
1160                 const char *str;
1161
1162                 if (type != DBUS_TYPE_STRING)
1163                         return -EINVAL;
1164
1165                 dbus_message_iter_get_basic(value, &str);
1166                 method = __connman_ipconfig_string2method(str);
1167                 if (method == CONNMAN_IPCONFIG_METHOD_UNKNOWN)
1168                         return -EINVAL;
1169
1170                 if (method == element->ipv4.method)
1171                         return -EALREADY;
1172
1173                 element->ipv4.method = method;
1174
1175                 connman_element_update(element);
1176         } else if (g_str_equal(name, "IPv4.Address") == TRUE) {
1177                 const char *address;
1178
1179                 if (type != DBUS_TYPE_STRING)
1180                         return -EINVAL;
1181
1182                 dbus_message_iter_get_basic(value, &address);
1183
1184                 g_free(element->ipv4.address);
1185                 element->ipv4.address = g_strdup(address);
1186
1187                 connman_element_update(element);
1188         } else if (g_str_equal(name, "IPv4.Netmask") == TRUE) {
1189                 const char *netmask;
1190
1191                 if (type != DBUS_TYPE_STRING)
1192                         return -EINVAL;
1193
1194                 dbus_message_iter_get_basic(value, &netmask);
1195
1196                 g_free(element->ipv4.netmask);
1197                 element->ipv4.netmask = g_strdup(netmask);
1198
1199                 connman_element_update(element);
1200         } else if (g_str_equal(name, "IPv4.Gateway") == TRUE) {
1201                 const char *gateway;
1202
1203                 if (type != DBUS_TYPE_STRING)
1204                         return -EINVAL;
1205
1206                 dbus_message_iter_get_basic(value, &gateway);
1207
1208                 g_free(element->ipv4.gateway);
1209                 element->ipv4.gateway = g_strdup(gateway);
1210
1211                 connman_element_update(element);
1212         } else if (g_str_equal(name, "IPv4.Broadcast") == TRUE) {
1213                 const char *broadcast;
1214
1215                 if (type != DBUS_TYPE_STRING)
1216                         return -EINVAL;
1217
1218                 dbus_message_iter_get_basic(value, &broadcast);
1219
1220                 g_free(element->ipv4.broadcast);
1221                 element->ipv4.broadcast = g_strdup(broadcast);
1222
1223                 connman_element_update(element);
1224         } else if (g_str_equal(name, "IPv4.Nameserver") == TRUE) {
1225                 const char *nameserver;
1226
1227                 if (type != DBUS_TYPE_STRING)
1228                         return -EINVAL;
1229
1230                 dbus_message_iter_get_basic(value, &nameserver);
1231
1232                 g_free(element->ipv4.nameserver);
1233                 element->ipv4.nameserver = g_strdup(nameserver);
1234
1235                 connman_element_update(element);
1236         } else if (g_str_equal(name, "IPv4.Timeserver") == TRUE) {
1237                 const char *timeserver;
1238
1239                 if (type != DBUS_TYPE_STRING)
1240                         return -EINVAL;
1241
1242                 dbus_message_iter_get_basic(value, &timeserver);
1243
1244                 g_free(element->ipv4.timeserver);
1245                 element->ipv4.nameserver = g_strdup(timeserver);
1246
1247                 connman_element_update(element);
1248         }
1249
1250         return 0;
1251 }
1252
1253 static void emit_state_change(DBusConnection *conn, const char *state)
1254 {
1255         DBusMessage *signal;
1256         DBusMessageIter iter;
1257
1258         DBG("conn %p", conn);
1259
1260         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1261                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1262         if (signal == NULL)
1263                 return;
1264
1265         dbus_message_iter_init_append(signal, &iter);
1266         connman_dbus_property_append_variant(&iter, "State",
1267                                                 DBUS_TYPE_STRING, &state);
1268
1269         g_dbus_send_message(conn, signal);
1270
1271         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1272                                 CONNMAN_MANAGER_INTERFACE, "StateChanged");
1273         if (signal == NULL)
1274                 return;
1275
1276         dbus_message_iter_init_append(signal, &iter);
1277         dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &state);
1278
1279         g_dbus_send_message(conn, signal);
1280 }
1281
1282 static void probe_element(struct connman_element *element)
1283 {
1284         GSList *list;
1285
1286         DBG("element %p name %s", element, element->name);
1287
1288         for (list = driver_list; list; list = list->next) {
1289                 struct connman_driver *driver = list->data;
1290
1291                 if (match_driver(element, driver) == FALSE)
1292                         continue;
1293
1294                 DBG("driver %p name %s", driver, driver->name);
1295
1296                 if (driver->probe(element) == 0) {
1297                         __connman_element_lock(element);
1298                         element->driver = driver;
1299                         __connman_element_unlock(element);
1300                         break;
1301                 }
1302         }
1303 }
1304
1305 static void register_element(gpointer data, gpointer user_data)
1306 {
1307         struct connman_element *element = data;
1308         const gchar *basepath;
1309         GNode *node;
1310
1311         __connman_element_lock(element);
1312
1313         if (element->parent) {
1314                 node = g_node_find(element_root, G_PRE_ORDER,
1315                                         G_TRAVERSE_ALL, element->parent);
1316                 basepath = element->parent->path;
1317         } else {
1318                 element->parent = element_root->data;
1319
1320                 node = element_root;
1321                 basepath = "/device";
1322         }
1323
1324         element->path = g_strdup_printf("%s/%s", basepath, element->name);
1325
1326         __connman_element_unlock(element);
1327
1328         if (node == NULL) {
1329                 connman_error("Element registration for %s failed",
1330                                                         element->path);
1331                 return;
1332         }
1333
1334         DBG("element %p path %s", element, element->path);
1335
1336         g_node_append_data(node, element);
1337
1338         if (element->type == CONNMAN_ELEMENT_TYPE_DHCP) {
1339                 element->parent->configuring = TRUE;
1340
1341 #if 0
1342                 if (__connman_element_count(NULL,
1343                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
1344                         emit_state_change(connection, "connecting");
1345 #endif
1346         }
1347
1348         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1349                 struct connman_element *parent = element->parent;
1350
1351                 while (parent) {
1352                         parent->configuring = FALSE;
1353                         parent = parent->parent;
1354                 }
1355
1356                 if (__connman_element_count(NULL,
1357                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 1)
1358                         emit_state_change(connection, "online");
1359         }
1360
1361         if (started == FALSE)
1362                 return;
1363
1364         probe_element(element);
1365 }
1366
1367 gboolean __connman_element_device_isfiltered(const char *devname)
1368 {
1369         if (device_filter == NULL)
1370                 goto nodevice;
1371
1372         if (g_pattern_match_simple(device_filter, devname) == FALSE) {
1373                 DBG("ignoring device %s (match)", devname);
1374                 return TRUE;
1375         }
1376
1377 nodevice:
1378         if (nodevice_filter == NULL)
1379                 return FALSE;
1380
1381         if (g_pattern_match_simple(nodevice_filter, devname) == TRUE) {
1382                 DBG("ignoring device %s (no match)", devname);
1383                 return TRUE;
1384         }
1385
1386         return FALSE;
1387 }
1388
1389 /**
1390  * connman_element_register:
1391  * @element: the element to register
1392  * @parent: the parent to register the element with
1393  *
1394  * Register an element with the core. It will be register under the given
1395  * parent of if %NULL is provided under the root element.
1396  *
1397  * Returns: %0 on success
1398  */
1399 int connman_element_register(struct connman_element *element,
1400                                         struct connman_element *parent)
1401 {
1402         DBG("element %p name %s parent %p", element, element->name, parent);
1403
1404         if (element->devname == NULL)
1405                 element->devname = g_strdup(element->name);
1406
1407         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
1408                 goto setup;
1409
1410         if (__connman_element_device_isfiltered(element->devname) == TRUE)
1411                 return -EPERM;
1412
1413 setup:
1414         if (connman_element_ref(element) == NULL)
1415                 return -EINVAL;
1416
1417         __connman_element_lock(element);
1418
1419         if (element->name == NULL) {
1420                 element->name = g_strdup(type2string(element->type));
1421                 if (element->name == NULL) {
1422                         __connman_element_unlock(element);
1423                         return -EINVAL;
1424                 }
1425         }
1426
1427         if (element->type == CONNMAN_ELEMENT_TYPE_DHCP)
1428                 element->ipv4.method = CONNMAN_IPCONFIG_METHOD_DHCP;
1429
1430         element->parent = parent;
1431
1432         __connman_element_unlock(element);
1433
1434         register_element(element, NULL);
1435
1436         return 0;
1437 }
1438
1439 static gboolean remove_element(GNode *node, gpointer user_data)
1440 {
1441         struct connman_element *element = node->data;
1442         struct connman_element *root = user_data;
1443
1444         DBG("element %p name %s", element, element->name);
1445
1446         if (element == root)
1447                 return FALSE;
1448
1449         if (node != NULL)
1450                 g_node_unlink(node);
1451
1452         if (element->driver) {
1453                 if (element->driver->remove)
1454                         element->driver->remove(element);
1455
1456                 __connman_element_lock(element);
1457                 element->driver = NULL;
1458                 __connman_element_unlock(element);
1459         }
1460
1461         if (node != NULL)
1462                 g_node_destroy(node);
1463
1464         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1465                 if (__connman_element_count(NULL,
1466                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
1467                         emit_state_change(connection, "offline");
1468         }
1469
1470         connman_element_unref(element);
1471
1472         return FALSE;
1473 }
1474
1475 void connman_element_unregister(struct connman_element *element)
1476 {
1477         GNode *node;
1478
1479         DBG("element %p name %s", element, element->name);
1480
1481         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1482
1483         if (node != NULL)
1484                 g_node_traverse(node, G_POST_ORDER,
1485                                 G_TRAVERSE_ALL, -1, remove_element, NULL);
1486 }
1487
1488 void connman_element_unregister_children(struct connman_element *element)
1489 {
1490         GNode *node;
1491
1492         DBG("element %p name %s", element, element->name);
1493
1494         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1495
1496         if (node != NULL)
1497                 g_node_traverse(node, G_POST_ORDER,
1498                                 G_TRAVERSE_ALL, -1, remove_element, element);
1499 }
1500
1501 static gboolean update_element(GNode *node, gpointer user_data)
1502 {
1503         struct connman_element *element = node->data;
1504
1505         DBG("element %p name %s", element, element->name);
1506
1507         if (element->driver && element->driver->update)
1508                 element->driver->update(element);
1509
1510         return FALSE;
1511 }
1512
1513 void connman_element_update(struct connman_element *element)
1514 {
1515         GNode *node;
1516
1517         DBG("element %p name %s", element, element->name);
1518
1519         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1520
1521         if (node != NULL)
1522                 g_node_traverse(node, G_PRE_ORDER,
1523                                 G_TRAVERSE_ALL, -1, update_element, element);
1524 }
1525
1526 int connman_element_set_enabled(struct connman_element *element,
1527                                                         gboolean enabled)
1528 {
1529         if (element->enabled == enabled)
1530                 return 0;
1531
1532         element->enabled = enabled;
1533
1534         connman_element_update(element);
1535
1536         return 0;
1537 }
1538
1539 static enum connman_service_error convert_error(enum connman_element_error error)
1540 {
1541         switch (error) {
1542         case CONNMAN_ELEMENT_ERROR_UNKNOWN:
1543         case CONNMAN_ELEMENT_ERROR_FAILED:
1544                 break;
1545         case CONNMAN_ELEMENT_ERROR_DHCP_FAILED:
1546                 return CONNMAN_SERVICE_ERROR_DHCP_FAILED;
1547         case CONNMAN_ELEMENT_ERROR_CONNECT_FAILED:
1548                 return CONNMAN_SERVICE_ERROR_CONNECT_FAILED;
1549         }
1550
1551         return CONNMAN_SERVICE_ERROR_UNKNOWN;
1552 }
1553
1554 /**
1555  * connman_element_set_error:
1556  * @element: element structure
1557  * @error: error identifier
1558  *
1559  * Set error state and specific error identifier
1560  */
1561 void connman_element_set_error(struct connman_element *element,
1562                                         enum connman_element_error error)
1563 {
1564         struct connman_service *service;
1565
1566         DBG("element %p error %d", element, error);
1567
1568         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1569                 return;
1570
1571         element->state = CONNMAN_ELEMENT_STATE_ERROR;
1572         element->error = error;
1573
1574         if (element->driver && element->driver->change)
1575                 element->driver->change(element);
1576
1577         service = __connman_element_get_service(element);
1578         __connman_service_indicate_error(service, convert_error(error));
1579 }
1580
1581 int __connman_element_init(const char *device, const char *nodevice)
1582 {
1583         struct connman_element *element;
1584
1585         DBG("");
1586
1587         connection = connman_dbus_get_connection();
1588         if (connection == NULL)
1589                 return -EIO;
1590
1591         device_filter = g_strdup(device);
1592         nodevice_filter = g_strdup(nodevice);
1593
1594         element = connman_element_create("root");
1595
1596         element->path = g_strdup("/");
1597         element->type = CONNMAN_ELEMENT_TYPE_ROOT;
1598
1599         element_root = g_node_new(element);
1600
1601         __connman_notifier_init();
1602         __connman_service_init();
1603         __connman_provider_init();
1604         __connman_network_init();
1605         __connman_device_init();
1606
1607         return 0;
1608 }
1609
1610 static gboolean probe_node(GNode *node, gpointer data)
1611 {
1612         struct connman_element *element = node->data;
1613
1614         DBG("element %p name %s", element, element->name);
1615
1616         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1617                 return FALSE;
1618
1619         if (element->driver)
1620                 return FALSE;
1621
1622         probe_element(element);
1623
1624         return FALSE;
1625 }
1626
1627 void __connman_element_start(void)
1628 {
1629         DBG("");
1630
1631         __connman_storage_init_profile();
1632
1633         g_node_traverse(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1634                                                         probe_node, NULL);
1635
1636         started = TRUE;
1637
1638         __connman_rtnl_start();
1639         __connman_udev_start();
1640
1641         __connman_connection_init();
1642         __connman_ipv4_init();
1643         __connman_dhcp_init();
1644
1645         if (__connman_rfkill_init() < 0)
1646                 __connman_udev_enable_rfkill_processing();
1647 }
1648
1649 void __connman_element_stop(void)
1650 {
1651         DBG("");
1652
1653         __connman_rfkill_cleanup();
1654
1655         __connman_dhcp_cleanup();
1656         __connman_ipv4_cleanup();
1657         __connman_provider_cleanup();
1658         __connman_connection_cleanup();
1659 }
1660
1661 static gboolean free_driver(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 (element->driver) {
1668                 if (element->driver->remove)
1669                         element->driver->remove(element);
1670
1671                 __connman_element_lock(element);
1672                 element->driver = NULL;
1673                 __connman_element_unlock(element);
1674         }
1675
1676         return FALSE;
1677 }
1678
1679 static gboolean free_node(GNode *node, gpointer data)
1680 {
1681         struct connman_element *element = node->data;
1682
1683         DBG("element %p name %s", element, element->name);
1684
1685         if (g_node_depth(node) > 1)
1686                 connman_element_unregister(element);
1687
1688         return FALSE;
1689 }
1690
1691 void __connman_element_cleanup(void)
1692 {
1693         DBG("");
1694
1695         __connman_device_cleanup();
1696         __connman_network_cleanup();
1697         __connman_service_cleanup();
1698         __connman_notifier_cleanup();
1699
1700         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1701                                                         free_driver, NULL);
1702
1703         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1704                                                         free_node, NULL);
1705
1706         g_node_destroy(element_root);
1707         element_root = NULL;
1708
1709         g_free(nodevice_filter);
1710         g_free(device_filter);
1711
1712         if (connection == NULL)
1713                 return;
1714
1715         dbus_connection_unref(connection);
1716 }