vcs.maemo.org Git - connman/blob - 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
  41 static gboolean started = FALSE;
  42
  43 static struct {
  44         enum connman_property_id id;
  45         int type;
  46         const char *name;
  47         const void *value;
  48 } propid_table[] = {
  49         { CONNMAN_PROPERTY_ID_IPV4_METHOD,
  50                 DBUS_TYPE_STRING, "IPv4.Method", "dhcp" },
  51         { CONNMAN_PROPERTY_ID_IPV4_ADDRESS,
  52                 DBUS_TYPE_STRING, "IPv4.Address" },
  53         { CONNMAN_PROPERTY_ID_IPV4_NETMASK,
  54                 DBUS_TYPE_STRING, "IPv4.Netmask" },
  55         { CONNMAN_PROPERTY_ID_IPV4_GATEWAY,
  56                 DBUS_TYPE_STRING, "IPv4.Gateway" },
  57         { CONNMAN_PROPERTY_ID_IPV4_BROADCAST,
  58                 DBUS_TYPE_STRING, "IPv4.Broadcast" },
  59         { CONNMAN_PROPERTY_ID_IPV4_NAMESERVER,
  60                 DBUS_TYPE_STRING, "IPv4.Nameserver" },
  61
  62         { CONNMAN_PROPERTY_ID_WIFI_SECURITY,
  63                 DBUS_TYPE_STRING, "WiFi.Security" },
  64         { CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE,
  65                 DBUS_TYPE_STRING, "WiFi.Passphrase" },
  66
  67         { }
  68 };
  69
  70 static int propid2type(enum connman_property_id id)
  71 {
  72         int i;
  73
  74         for (i = 0; propid_table[i].name; i++) {
  75                 if (propid_table[i].id == id)
  76                         return propid_table[i].type;
  77         }
  78
  79         return DBUS_TYPE_INVALID;
  80 }
  81
  82 static const char *propid2name(enum connman_property_id id)
  83 {
  84         int i;
  85
  86         for (i = 0; propid_table[i].name; i++) {
  87                 if (propid_table[i].id == id)
  88                         return propid_table[i].name;
  89         }
  90
  91         return NULL;
  92 }
  93
  94 static const char *type2string(enum connman_element_type type)
  95 {
  96         switch (type) {
  97         case CONNMAN_ELEMENT_TYPE_UNKNOWN:
  98                 return "unknown";
  99         case CONNMAN_ELEMENT_TYPE_ROOT:
 100                 return "root";
 101         case CONNMAN_ELEMENT_TYPE_PROFILE:
 102                 return "profile";
 103         case CONNMAN_ELEMENT_TYPE_DEVICE:
 104                 return "device";
 105         case CONNMAN_ELEMENT_TYPE_NETWORK:
 106                 return "network";
 107         case CONNMAN_ELEMENT_TYPE_SERVICE:
 108                 return "service";
 109         case CONNMAN_ELEMENT_TYPE_PPP:
 110                 return "ppp";
 111         case CONNMAN_ELEMENT_TYPE_IPV4:
 112                 return "ipv4";
 113         case CONNMAN_ELEMENT_TYPE_IPV6:
 114                 return "ipv6";
 115         case CONNMAN_ELEMENT_TYPE_DHCP:
 116                 return "dhcp";
 117         case CONNMAN_ELEMENT_TYPE_BOOTP:
 118                 return "bootp";
 119         case CONNMAN_ELEMENT_TYPE_ZEROCONF:
 120                 return "zeroconf";
 121         case CONNMAN_ELEMENT_TYPE_CONNECTION:
 122                 return "connection";
 123         case CONNMAN_ELEMENT_TYPE_VENDOR:
 124                 return "vendor";
 125         }
 126
 127         return NULL;
 128 }
 129
 130 const char *__connman_element_policy2string(enum connman_element_policy policy)
 131 {
 132         switch (policy) {
 133         case CONNMAN_ELEMENT_POLICY_UNKNOWN:
 134                 return "unknown";
 135         case CONNMAN_ELEMENT_POLICY_IGNORE:
 136                 return "ignore";
 137         case CONNMAN_ELEMENT_POLICY_AUTO:
 138                 return "auto";
 139         case CONNMAN_ELEMENT_POLICY_ASK:
 140                 return "ask";
 141         }
 142
 143         return NULL;
 144 }
 145
 146 enum connman_element_policy __connman_element_string2policy(const char *policy)
 147 {
 148         if (strcasecmp(policy, "ignore") == 0)
 149                 return CONNMAN_ELEMENT_POLICY_IGNORE;
 150         else if (strcasecmp(policy, "auto") == 0)
 151                 return CONNMAN_ELEMENT_POLICY_AUTO;
 152         else if (strcasecmp(policy, "ask") == 0)
 153                 return CONNMAN_ELEMENT_POLICY_ASK;
 154         else
 155                 return CONNMAN_ELEMENT_POLICY_UNKNOWN;
 156 }
 157
 158 const char *__connman_ipv4_method2string(enum connman_ipv4_method method)
 159 {
 160         switch (method) {
 161         case CONNMAN_IPV4_METHOD_UNKNOWN:
 162                 return "unknown";
 163         case CONNMAN_IPV4_METHOD_OFF:
 164                 return "off";
 165         case CONNMAN_IPV4_METHOD_STATIC:
 166                 return "static";
 167         case CONNMAN_IPV4_METHOD_DHCP:
 168                 return "dhcp";
 169         }
 170
 171         return "unknown";
 172 }
 173
 174 enum connman_ipv4_method __connman_ipv4_string2method(const char *method)
 175 {
 176         if (strcasecmp(method, "off") == 0)
 177                 return CONNMAN_IPV4_METHOD_OFF;
 178         else if (strcasecmp(method, "static") == 0)
 179                 return CONNMAN_IPV4_METHOD_STATIC;
 180         else if (strcasecmp(method, "dhcp") == 0)
 181                 return CONNMAN_IPV4_METHOD_DHCP;
 182         else
 183                 return CONNMAN_IPV4_METHOD_UNKNOWN;
 184 }
 185
 186 #if 0
 187 static void append_property(DBusMessageIter *dict,
 188                                 struct connman_property *property)
 189 {
 190         if (property->value == NULL)
 191                 return;
 192
 193         switch (property->type) {
 194         case DBUS_TYPE_ARRAY:
 195                 connman_dbus_dict_append_array(dict, property->name,
 196                         property->subtype, &property->value, property->size);
 197                 break;
 198         case DBUS_TYPE_STRING:
 199                 connman_dbus_dict_append_variant(dict, property->name,
 200                                         property->type, &property->value);
 201                 break;
 202         default:
 203                 connman_dbus_dict_append_variant(dict, property->name,
 204                                         property->type, property->value);
 205                 break;
 206         }
 207 }
 208
 209 static void add_common_properties(struct connman_element *element,
 210                                                 DBusMessageIter *dict)
 211 {
 212         const char *address = NULL, *netmask = NULL, *gateway = NULL;
 213         GSList *list;
 214
 215         connman_element_get_value(element,
 216                                 CONNMAN_PROPERTY_ID_IPV4_ADDRESS, &address);
 217         connman_element_get_value(element,
 218                                 CONNMAN_PROPERTY_ID_IPV4_NETMASK, &netmask);
 219         connman_element_get_value(element,
 220                                 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
 221
 222         if (element->priority > 0)
 223                 connman_dbus_dict_append_variant(dict, "Priority",
 224                                         DBUS_TYPE_UINT16, &element->priority);
 225
 226         if (address != NULL)
 227                 connman_dbus_dict_append_variant(dict, "IPv4.Address",
 228                                                 DBUS_TYPE_STRING, &address);
 229         if (netmask != NULL)
 230                 connman_dbus_dict_append_variant(dict, "IPv4.Netmask",
 231                                                 DBUS_TYPE_STRING, &netmask);
 232         if (gateway != NULL)
 233                 connman_dbus_dict_append_variant(dict, "IPv4.Gateway",
 234                                                 DBUS_TYPE_STRING, &gateway);
 235
 236         if (element->wifi.security != NULL) {
 237                 const char *passphrase = "";
 238
 239                 connman_dbus_dict_append_variant(dict, "WiFi.Security",
 240                                 DBUS_TYPE_STRING, &element->wifi.security);
 241
 242                 if (element->wifi.passphrase != NULL)
 243                         passphrase = element->wifi.passphrase;
 244
 245                 connman_dbus_dict_append_variant(dict, "WiFi.Passphrase",
 246                                 DBUS_TYPE_STRING, &passphrase);
 247         }
 248
 249         __connman_element_lock(element);
 250
 251         for (list = element->properties; list; list = list->next) {
 252                 struct connman_property *property = list->data;
 253
 254                 append_property(dict, property);
 255         }
 256
 257         __connman_element_unlock(element);
 258 }
 259
 260 static void set_common_property(struct connman_element *element,
 261                                 const char *name, DBusMessageIter *value)
 262 {
 263         GSList *list;
 264
 265         if (g_str_equal(name, "Priority") == TRUE) {
 266                 dbus_message_iter_get_basic(value, &element->priority);
 267                 return;
 268         }
 269
 270         __connman_element_lock(element);
 271
 272         for (list = element->properties; list; list = list->next) {
 273                 struct connman_property *property = list->data;
 274                 const char *str;
 275
 276                 if (g_str_equal(property->name, name) == FALSE)
 277                         continue;
 278
 279                 if (property->flags & CONNMAN_PROPERTY_FLAG_STATIC)
 280                         continue;
 281
 282                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
 283
 284                 if (property->type == DBUS_TYPE_STRING) {
 285                         dbus_message_iter_get_basic(value, &str);
 286                         g_free(property->value);
 287                         property->value = g_strdup(str);
 288                 } else
 289                         property->value = NULL;
 290         }
 291
 292         __connman_element_unlock(element);
 293 }
 294 #endif
 295
 296 static void emit_element_signal(DBusConnection *conn, const char *member,
 297                                         struct connman_element *element)
 298 {
 299         DBusMessage *signal;
 300
 301         if (__connman_debug_enabled() == FALSE)
 302                 return;
 303
 304         DBG("conn %p member %s", conn, member);
 305
 306         if (element == NULL)
 307                 return;
 308
 309         signal = dbus_message_new_signal(element->path,
 310                                         CONNMAN_DEBUG_INTERFACE, member);
 311         if (signal == NULL)
 312                 return;
 313
 314         g_dbus_send_message(conn, signal);
 315 }
 316
 317 struct foreach_data {
 318         enum connman_element_type type;
 319         element_cb_t callback;
 320         gpointer user_data;
 321 };
 322
 323 static gboolean foreach_callback(GNode *node, gpointer user_data)
 324 {
 325         struct connman_element *element = node->data;
 326         struct foreach_data *data = user_data;
 327
 328         DBG("element %p name %s", element, element->name);
 329
 330         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 331                 return FALSE;
 332
 333         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 334                                         data->type != element->type)
 335                 return FALSE;
 336
 337         if (data->callback)
 338                 data->callback(element, data->user_data);
 339
 340         return FALSE;
 341 }
 342
 343 void __connman_element_foreach(struct connman_element *element,
 344                                 enum connman_element_type type,
 345                                 element_cb_t callback, gpointer user_data)
 346 {
 347         struct foreach_data data = { type, callback, user_data };
 348         GNode *node;
 349
 350         DBG("");
 351
 352         if (element != NULL) {
 353                 node = g_node_find(element_root, G_PRE_ORDER,
 354                                                 G_TRAVERSE_ALL, element);
 355                 if (node == NULL)
 356                         return;
 357         } else
 358                 node = element_root;
 359
 360         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 361                                                 foreach_callback, &data);
 362 }
 363
 364 struct append_filter {
 365         enum connman_element_type type;
 366         DBusMessageIter *iter;
 367 };
 368
 369 static gboolean append_path(GNode *node, gpointer user_data)
 370 {
 371         struct connman_element *element = node->data;
 372         struct append_filter *filter = user_data;
 373
 374         DBG("element %p name %s", element, element->name);
 375
 376         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 377                 return FALSE;
 378
 379         if (filter->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 380                                         filter->type != element->type)
 381                 return FALSE;
 382
 383         if (filter->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 384                         __connman_device_has_driver(element->device) == FALSE)
 385                 return FALSE;
 386
 387         if (filter->type == CONNMAN_ELEMENT_TYPE_NETWORK &&
 388                         __connman_network_has_driver(element->network) == FALSE)
 389                 return FALSE;
 390
 391         dbus_message_iter_append_basic(filter->iter,
 392                                 DBUS_TYPE_OBJECT_PATH, &element->path);
 393
 394         return FALSE;
 395 }
 396
 397 void __connman_element_list(struct connman_element *element,
 398                                         enum connman_element_type type,
 399                                                         DBusMessageIter *iter)
 400 {
 401         struct append_filter filter = { type, iter };
 402         GNode *node;
 403
 404         DBG("");
 405
 406         if (element != NULL) {
 407                 node = g_node_find(element_root, G_PRE_ORDER,
 408                                                 G_TRAVERSE_ALL, element);
 409                 if (node == NULL)
 410                         return;
 411         } else
 412                 node = element_root;
 413
 414         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 415                                                 append_path, &filter);
 416 }
 417
 418 struct count_data {
 419         enum connman_element_type type;
 420         int count;
 421 };
 422
 423 static gboolean count_element(GNode *node, gpointer user_data)
 424 {
 425         struct connman_element *element = node->data;
 426         struct count_data *data = user_data;
 427
 428         DBG("element %p name %s", element, element->name);
 429
 430         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 431                 return FALSE;
 432
 433         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 434                                         data->type != element->type)
 435                 return FALSE;
 436
 437         data->count++;
 438
 439         return FALSE;
 440 }
 441
 442 int __connman_element_count(struct connman_element *element,
 443                                         enum connman_element_type type)
 444 {
 445         struct count_data data = { type, 0 };
 446         GNode *node;
 447
 448         DBG("");
 449
 450         if (element != NULL) {
 451                 node = g_node_find(element_root, G_PRE_ORDER,
 452                                                 G_TRAVERSE_ALL, element);
 453                 if (node == NULL)
 454                         return 0;
 455         } else
 456                 node = element_root;
 457
 458         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 459                                                 count_element, &data);
 460
 461         return data.count;
 462 }
 463
 464 static gint compare_priority(gconstpointer a, gconstpointer b)
 465 {
 466         const struct connman_driver *driver1 = a;
 467         const struct connman_driver *driver2 = b;
 468
 469         return driver2->priority - driver1->priority;
 470 }
 471
 472 static gboolean match_driver(struct connman_element *element,
 473                                         struct connman_driver *driver)
 474 {
 475         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 476                 return FALSE;
 477
 478         if (element->type == driver->type ||
 479                         driver->type == CONNMAN_ELEMENT_TYPE_UNKNOWN)
 480                 return TRUE;
 481
 482         return FALSE;
 483 }
 484
 485 static gboolean probe_driver(GNode *node, gpointer data)
 486 {
 487         struct connman_element *element = node->data;
 488         struct connman_driver *driver = data;
 489
 490         DBG("element %p name %s", element, element->name);
 491
 492         if (!element->driver && match_driver(element, driver) == TRUE) {
 493                 if (driver->probe(element) < 0)
 494                         return FALSE;
 495
 496                 __connman_element_lock(element);
 497                 element->driver = driver;
 498                 __connman_element_unlock(element);
 499         }
 500
 501         return FALSE;
 502 }
 503
 504 void __connman_driver_rescan(struct connman_driver *driver)
 505 {
 506         DBG("driver %p name %s", driver, driver->name);
 507
 508         if (!driver->probe)
 509                 return;
 510
 511         if (element_root != NULL)
 512                 g_node_traverse(element_root, G_PRE_ORDER,
 513                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 514 }
 515
 516 /**
 517  * connman_driver_register:
 518  * @driver: driver definition
 519  *
 520  * Register a new driver
 521  *
 522  * Returns: %0 on success
 523  */
 524 int connman_driver_register(struct connman_driver *driver)
 525 {
 526         DBG("driver %p name %s", driver, driver->name);
 527
 528         if (driver->type == CONNMAN_ELEMENT_TYPE_ROOT)
 529                 return -EINVAL;
 530
 531         if (!driver->probe)
 532                 return -EINVAL;
 533
 534         driver_list = g_slist_insert_sorted(driver_list, driver,
 535                                                         compare_priority);
 536
 537         if (started == FALSE)
 538                 return 0;
 539
 540         if (element_root != NULL)
 541                 g_node_traverse(element_root, G_PRE_ORDER,
 542                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 543
 544         return 0;
 545 }
 546
 547 static gboolean remove_driver(GNode *node, gpointer data)
 548 {
 549         struct connman_element *element = node->data;
 550         struct connman_driver *driver = data;
 551
 552         DBG("element %p name %s", element, element->name);
 553
 554         if (element->driver == driver) {
 555                 if (driver->remove)
 556                         driver->remove(element);
 557
 558                 __connman_element_lock(element);
 559                 element->driver = NULL;
 560                 __connman_element_unlock(element);
 561         }
 562
 563         return FALSE;
 564 }
 565
 566 /**
 567  * connman_driver_unregister:
 568  * @driver: driver definition
 569  *
 570  * Remove a previously registered driver
 571  */
 572 void connman_driver_unregister(struct connman_driver *driver)
 573 {
 574         DBG("driver %p name %s", driver, driver->name);
 575
 576         driver_list = g_slist_remove(driver_list, driver);
 577
 578         if (element_root != NULL)
 579                 g_node_traverse(element_root, G_POST_ORDER,
 580                                 G_TRAVERSE_ALL, -1, remove_driver, driver);
 581 }
 582
 583 /**
 584  * connman_element_create:
 585  * @name: element name
 586  *
 587  * Allocate a new element and assign the given #name to it. If the name
 588  * is #NULL, it will be later on created based on the element type.
 589  *
 590  * Returns: a newly-allocated #connman_element structure
 591  */
 592 struct connman_element *connman_element_create(const char *name)
 593 {
 594         struct connman_element *element;
 595
 596         element = g_try_new0(struct connman_element, 1);
 597         if (element == NULL)
 598                 return NULL;
 599
 600         DBG("element %p", element);
 601
 602         element->refcount = 1;
 603
 604         element->name    = g_strdup(name);
 605         element->type    = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 606         element->state   = CONNMAN_ELEMENT_STATE_CLOSED;
 607         element->policy  = CONNMAN_ELEMENT_POLICY_AUTO;
 608         element->index   = -1;
 609         element->enabled = FALSE;
 610
 611         return element;
 612 }
 613
 614 struct connman_element *connman_element_ref(struct connman_element *element)
 615 {
 616         DBG("element %p name %s refcount %d", element, element->name,
 617                                 g_atomic_int_get(&element->refcount) + 1);
 618
 619         g_atomic_int_inc(&element->refcount);
 620
 621         return element;
 622 }
 623
 624 static void free_properties(struct connman_element *element)
 625 {
 626         GSList *list;
 627
 628         DBG("element %p name %s", element, element->name);
 629
 630         __connman_element_lock(element);
 631
 632         for (list = element->properties; list; list = list->next) {
 633                 struct connman_property *property = list->data;
 634
 635                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
 636                         g_free(property->value);
 637
 638                 g_free(property->name);
 639                 g_free(property);
 640         }
 641
 642         g_slist_free(element->properties);
 643
 644         element->properties = NULL;
 645
 646         __connman_element_unlock(element);
 647 }
 648
 649 void connman_element_unref(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         if (g_atomic_int_dec_and_test(&element->refcount) == TRUE) {
 655                 if (element->destruct)
 656                         element->destruct(element);
 657                 free_properties(element);
 658                 g_free(element->ipv4.address);
 659                 g_free(element->ipv4.netmask);
 660                 g_free(element->ipv4.gateway);
 661                 g_free(element->ipv4.network);
 662                 g_free(element->ipv4.broadcast);
 663                 g_free(element->ipv4.nameserver);
 664                 g_free(element->devname);
 665                 g_free(element->devpath);
 666                 g_free(element->path);
 667                 g_free(element->name);
 668                 g_free(element);
 669         }
 670 }
 671
 672 int connman_element_add_static_property(struct connman_element *element,
 673                                 const char *name, int type, const void *value)
 674 {
 675         struct connman_property *property;
 676
 677         DBG("element %p name %s", element, element->name);
 678
 679         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
 680                 return -EINVAL;
 681
 682         property = g_try_new0(struct connman_property, 1);
 683         if (property == NULL)
 684                 return -ENOMEM;
 685
 686         property->flags = CONNMAN_PROPERTY_FLAG_STATIC;
 687         property->id    = CONNMAN_PROPERTY_ID_INVALID;
 688         property->name  = g_strdup(name);
 689         property->type  = type;
 690
 691         DBG("name %s type %d value %p", name, type, value);
 692
 693         switch (type) {
 694         case DBUS_TYPE_STRING:
 695                 property->value = g_strdup(*((const char **) value));
 696                 break;
 697         case DBUS_TYPE_BYTE:
 698                 property->value = g_try_malloc(1);
 699                 if (property->value != NULL)
 700                         memcpy(property->value, value, 1);
 701                 break;
 702         }
 703
 704         __connman_element_lock(element);
 705         element->properties = g_slist_append(element->properties, property);
 706         __connman_element_unlock(element);
 707
 708         return 0;
 709 }
 710
 711 int connman_element_set_static_property(struct connman_element *element,
 712                                 const char *name, int type, const void *value)
 713 {
 714         GSList *list;
 715
 716         DBG("element %p name %s", element, element->name);
 717
 718         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
 719                 return -EINVAL;
 720
 721         __connman_element_lock(element);
 722
 723         for (list = element->properties; list; list = list->next) {
 724                 struct connman_property *property = list->data;
 725
 726                 if (g_str_equal(property->name, name) == FALSE)
 727                         continue;
 728
 729                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
 730                         continue;
 731
 732                 property->type = type;
 733                 g_free(property->value);
 734
 735                 switch (type) {
 736                 case DBUS_TYPE_STRING:
 737                         property->value = g_strdup(*((const char **) value));
 738                         break;
 739                 case DBUS_TYPE_BYTE:
 740                         property->value = g_try_malloc(1);
 741                         if (property->value != NULL)
 742                                 memcpy(property->value, value, 1);
 743                         break;
 744                 }
 745         }
 746
 747         __connman_element_unlock(element);
 748
 749         return 0;
 750 }
 751
 752 int connman_element_add_static_array_property(struct connman_element *element,
 753                         const char *name, int type, const void *value, int len)
 754 {
 755         struct connman_property *property;
 756
 757         DBG("element %p name %s", element, element->name);
 758
 759         if (type != DBUS_TYPE_BYTE)
 760                 return -EINVAL;
 761
 762         property = g_try_new0(struct connman_property, 1);
 763         if (property == NULL)
 764                 return -ENOMEM;
 765
 766         property->flags   = CONNMAN_PROPERTY_FLAG_STATIC;
 767         property->id      = CONNMAN_PROPERTY_ID_INVALID;
 768         property->name    = g_strdup(name);
 769         property->type    = DBUS_TYPE_ARRAY;
 770         property->subtype = type;
 771
 772         DBG("name %s type %d value %p", name, type, value);
 773
 774         switch (type) {
 775         case DBUS_TYPE_BYTE:
 776                 property->value = g_try_malloc(len);
 777                 if (property->value != NULL) {
 778                         memcpy(property->value,
 779                                 *((const unsigned char **) value), len);
 780                         property->size = len;
 781                 }
 782                 break;
 783         }
 784
 785         __connman_element_lock(element);
 786         element->properties = g_slist_append(element->properties, property);
 787         __connman_element_unlock(element);
 788
 789         return 0;
 790 }
 791
 792 static void *get_reference_value(struct connman_element *element,
 793                                                 enum connman_property_id id)
 794 {
 795         GSList *list;
 796
 797         DBG("element %p name %s", element, element->name);
 798
 799         for (list = element->properties; list; list = list->next) {
 800                 struct connman_property *property = list->data;
 801
 802                 if (property->id != id)
 803                         continue;
 804
 805                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
 806                         return property->value;
 807         }
 808
 809         if (element->parent == NULL)
 810                 return NULL;
 811
 812         return get_reference_value(element->parent, id);
 813 }
 814
 815 static void set_reference_properties(struct connman_element *element)
 816 {
 817         GSList *list;
 818
 819         DBG("element %p name %s", element, element->name);
 820
 821         for (list = element->properties; list; list = list->next) {
 822                 struct connman_property *property = list->data;
 823
 824                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
 825                         continue;
 826
 827                 property->value = get_reference_value(element->parent,
 828                                                                 property->id);
 829         }
 830 }
 831
 832 static struct connman_property *create_property(struct connman_element *element,
 833                                                 enum connman_property_id id)
 834 {
 835         struct connman_property *property;
 836         GSList *list;
 837
 838         DBG("element %p name %s", element, element->name);
 839
 840         __connman_element_lock(element);
 841
 842         for (list = element->properties; list; list = list->next) {
 843                 property = list->data;
 844
 845                 if (property->id == id)
 846                         goto unlock;
 847         }
 848
 849         property = g_try_new0(struct connman_property, 1);
 850         if (property == NULL)
 851                 goto unlock;
 852
 853         property->flags = CONNMAN_PROPERTY_FLAG_REFERENCE;
 854         property->id    = id;
 855         property->name  = g_strdup(propid2name(id));
 856         property->type  = propid2type(id);
 857
 858         if (property->name == NULL) {
 859                 g_free(property);
 860                 property = NULL;
 861                 goto unlock;
 862         }
 863
 864         element->properties = g_slist_append(element->properties, property);
 865
 866 unlock:
 867         __connman_element_unlock(element);
 868
 869         return property;
 870 }
 871
 872 static void create_default_properties(struct connman_element *element)
 873 {
 874         struct connman_property *property;
 875         int i;
 876
 877         DBG("element %p name %s", element, element->name);
 878
 879         for (i = 0; propid_table[i].name; i++) {
 880                 DBG("property %s", propid_table[i].name);
 881
 882                 property = create_property(element, propid_table[i].id);
 883
 884                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
 885
 886                 if (propid_table[i].type != DBUS_TYPE_STRING)
 887                         continue;
 888
 889                 if (propid_table[i].value)
 890                         property->value = g_strdup(propid_table[i].value);
 891                 else
 892                         property->value = g_strdup("");
 893         }
 894 }
 895
 896 static int define_properties_valist(struct connman_element *element,
 897                                                                 va_list args)
 898 {
 899         enum connman_property_id id;
 900
 901         DBG("element %p name %s", element, element->name);
 902
 903         id = va_arg(args, enum connman_property_id);
 904
 905         while (id != CONNMAN_PROPERTY_ID_INVALID) {
 906
 907                 DBG("property %d", id);
 908
 909                 create_property(element, id);
 910
 911                 id = va_arg(args, enum connman_property_id);
 912         }
 913
 914         return 0;
 915 }
 916
 917 /**
 918  * connman_element_define_properties:
 919  * @element: an element
 920  * @varargs: list of property identifiers
 921  *
 922  * Define the valid properties for an element.
 923  *
 924  * Returns: %0 on success
 925  */
 926 int connman_element_define_properties(struct connman_element *element, ...)
 927 {
 928         va_list args;
 929         int err;
 930
 931         DBG("element %p name %s", element, element->name);
 932
 933         va_start(args, element);
 934
 935         err = define_properties_valist(element, args);
 936
 937         va_end(args);
 938
 939         return err;
 940 }
 941
 942 int connman_element_create_property(struct connman_element *element,
 943                                                 const char *name, int type)
 944 {
 945         return -EIO;
 946 }
 947
 948 int connman_element_set_property(struct connman_element *element,
 949                                 enum connman_property_id id, const void *value)
 950 {
 951         switch (id) {
 952         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
 953                 __connman_element_lock(element);
 954                 g_free(element->ipv4.address);
 955                 element->ipv4.address = g_strdup(*((const char **) value));
 956                 __connman_element_unlock(element);
 957                 break;
 958         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
 959                 __connman_element_lock(element);
 960                 g_free(element->ipv4.netmask);
 961                 element->ipv4.netmask = g_strdup(*((const char **) value));
 962                 __connman_element_unlock(element);
 963                 break;
 964         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
 965                 __connman_element_lock(element);
 966                 g_free(element->ipv4.gateway);
 967                 element->ipv4.gateway = g_strdup(*((const char **) value));
 968                 __connman_element_unlock(element);
 969                 break;
 970         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
 971                 __connman_element_lock(element);
 972                 g_free(element->ipv4.broadcast);
 973                 element->ipv4.broadcast = g_strdup(*((const char **) value));
 974                 __connman_element_unlock(element);
 975                 break;
 976         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
 977                 __connman_element_lock(element);
 978                 g_free(element->ipv4.nameserver);
 979                 element->ipv4.nameserver = g_strdup(*((const char **) value));
 980                 __connman_element_unlock(element);
 981                 break;
 982         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
 983                 __connman_element_lock(element);
 984                 g_free(element->wifi.security);
 985                 element->wifi.security = g_strdup(*((const char **) value));
 986                 __connman_element_unlock(element);
 987                 break;
 988         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
 989                 __connman_element_lock(element);
 990                 g_free(element->wifi.passphrase);
 991                 element->wifi.passphrase = g_strdup(*((const char **) value));
 992                 __connman_element_unlock(element);
 993                 break;
 994         default:
 995                 return -EINVAL;
 996         }
 997
 998         return 0;
 999 }
1000
1001 int connman_element_get_value(struct connman_element *element,
1002                                 enum connman_property_id id, void *value)
1003 {
1004         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1005                 return -EINVAL;
1006
1007         switch (id) {
1008         case CONNMAN_PROPERTY_ID_IPV4_METHOD:
1009                 if (element->ipv4.method == CONNMAN_IPV4_METHOD_UNKNOWN)
1010                         return connman_element_get_value(element->parent,
1011                                                                 id, value);
1012                 __connman_element_lock(element);
1013                 *((const char **) value) = __connman_ipv4_method2string(element->ipv4.method);
1014                 __connman_element_unlock(element);
1015                 break;
1016         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1017                 if (element->ipv4.address == NULL)
1018                         return connman_element_get_value(element->parent,
1019                                                                 id, value);
1020                 __connman_element_lock(element);
1021                 *((char **) value) = element->ipv4.address;
1022                 __connman_element_unlock(element);
1023                 break;
1024         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1025                 if (element->ipv4.netmask == NULL)
1026                         return connman_element_get_value(element->parent,
1027                                                                 id, value);
1028                 __connman_element_lock(element);
1029                 *((char **) value) = element->ipv4.netmask;
1030                 __connman_element_unlock(element);
1031                 break;
1032         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1033                 if (element->ipv4.gateway == NULL)
1034                         return connman_element_get_value(element->parent,
1035                                                                 id, value);
1036                 __connman_element_lock(element);
1037                 *((char **) value) = element->ipv4.gateway;
1038                 __connman_element_unlock(element);
1039                 break;
1040         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
1041                 if (element->ipv4.broadcast == NULL)
1042                         return connman_element_get_value(element->parent,
1043                                                                 id, value);
1044                 __connman_element_lock(element);
1045                 *((char **) value) = element->ipv4.broadcast;
1046                 __connman_element_unlock(element);
1047                 break;
1048         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1049                 if (element->ipv4.nameserver == NULL)
1050                         return connman_element_get_value(element->parent,
1051                                                                 id, value);
1052                 __connman_element_lock(element);
1053                 *((char **) value) = element->ipv4.nameserver;
1054                 __connman_element_unlock(element);
1055                 break;
1056         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1057                 if (element->wifi.security == NULL)
1058                         return connman_element_get_value(element->parent,
1059                                                                 id, value);
1060                 __connman_element_lock(element);
1061                 *((char **) value) = element->wifi.security;
1062                 __connman_element_unlock(element);
1063                 break;
1064         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1065                 if (element->wifi.passphrase == NULL)
1066                         return connman_element_get_value(element->parent,
1067                                                                 id, value);
1068                 __connman_element_lock(element);
1069                 *((char **) value) = element->wifi.passphrase;
1070                 __connman_element_unlock(element);
1071                 break;
1072         default:
1073                 return -EINVAL;
1074         }
1075
1076         return 0;
1077 }
1078
1079 gboolean connman_element_get_static_property(struct connman_element *element,
1080                                                 const char *name, void *value)
1081 {
1082         GSList *list;
1083         gboolean found = FALSE;
1084
1085         DBG("element %p name %s", element, element->name);
1086
1087         __connman_element_lock(element);
1088
1089         for (list = element->properties; list; list = list->next) {
1090                 struct connman_property *property = list->data;
1091
1092                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1093                         continue;
1094
1095                 if (g_str_equal(property->name, name) == TRUE) {
1096                         switch (property->type) {
1097                         case DBUS_TYPE_STRING:
1098                                 *((char **) value) = property->value;
1099                                 found = TRUE;
1100                                 break;
1101                         }
1102                         break;
1103                 }
1104         }
1105
1106         __connman_element_unlock(element);
1107
1108         return found;
1109 }
1110
1111 gboolean connman_element_get_static_array_property(struct connman_element *element,
1112                                         const char *name, void *value, int *len)
1113 {
1114         GSList *list;
1115         gboolean found = FALSE;
1116
1117         DBG("element %p name %s", element, element->name);
1118
1119         __connman_element_lock(element);
1120
1121         for (list = element->properties; list; list = list->next) {
1122                 struct connman_property *property = list->data;
1123
1124                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1125                         continue;
1126
1127                 if (g_str_equal(property->name, name) == TRUE) {
1128                         *((char **) value) = property->value;
1129                         *len = property->size;
1130                         found = TRUE;
1131                         break;
1132                 }
1133         }
1134
1135         __connman_element_unlock(element);
1136
1137         return found;
1138 }
1139
1140 gboolean connman_element_match_static_property(struct connman_element *element,
1141                                         const char *name, const void *value)
1142 {
1143         GSList *list;
1144         gboolean result = FALSE;
1145
1146         DBG("element %p name %s", element, element->name);
1147
1148         __connman_element_lock(element);
1149
1150         for (list = element->properties; list; list = list->next) {
1151                 struct connman_property *property = list->data;
1152
1153                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1154                         continue;
1155
1156                 if (g_str_equal(property->name, name) == FALSE)
1157                         continue;
1158
1159                 if (property->type == DBUS_TYPE_STRING)
1160                         result = g_str_equal(property->value,
1161                                                 *((const char **) value));
1162
1163                 if (result == TRUE)
1164                         break;
1165         }
1166
1167         __connman_element_unlock(element);
1168
1169         return result;
1170 }
1171
1172 static void append_connections(DBusMessageIter *entry)
1173 {
1174         DBusMessageIter value, iter;
1175         const char *key = "Connections";
1176
1177         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1178
1179         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1180                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1181                                                                 &value);
1182
1183         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1184                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1185         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
1186         dbus_message_iter_close_container(&value, &iter);
1187
1188         dbus_message_iter_close_container(entry, &value);
1189 }
1190
1191 static void emit_connections_signal(DBusConnection *conn)
1192 {
1193         DBusMessage *signal;
1194         DBusMessageIter entry;
1195
1196         DBG("conn %p", conn);
1197
1198         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1199                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1200         if (signal == NULL)
1201                 return;
1202
1203         dbus_message_iter_init_append(signal, &entry);
1204
1205         append_connections(&entry);
1206
1207         g_dbus_send_message(conn, signal);
1208 }
1209
1210 static void append_state(DBusMessageIter *entry, const char *state)
1211 {
1212         DBusMessageIter value;
1213         const char *key = "State";
1214
1215         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1216
1217         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1218                                         DBUS_TYPE_STRING_AS_STRING, &value);
1219         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &state);
1220         dbus_message_iter_close_container(entry, &value);
1221 }
1222
1223 static void emit_state_change(DBusConnection *conn, const char *state)
1224 {
1225         DBusMessage *signal;
1226         DBusMessageIter entry;
1227
1228         DBG("conn %p", conn);
1229
1230         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1231                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1232         if (signal == NULL)
1233                 return;
1234
1235         dbus_message_iter_init_append(signal, &entry);
1236
1237         append_state(&entry, state);
1238
1239         g_dbus_send_message(conn, signal);
1240 }
1241
1242 static void set_signal_strength(struct connman_element *connection)
1243 {
1244         struct connman_element *element = connection;
1245
1246         while (element != NULL) {
1247                 if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1248                         connection->strength = element->strength;
1249                         break;
1250                 }
1251
1252                 element = element->parent;
1253         }
1254 }
1255
1256 static void probe_element(struct connman_element *element)
1257 {
1258         GSList *list;
1259
1260         DBG("element %p name %s", element, element->name);
1261
1262         for (list = driver_list; list; list = list->next) {
1263                 struct connman_driver *driver = list->data;
1264
1265                 if (match_driver(element, driver) == FALSE)
1266                         continue;
1267
1268                 DBG("driver %p name %s", driver, driver->name);
1269
1270                 if (driver->probe(element) == 0) {
1271                         __connman_element_lock(element);
1272                         element->driver = driver;
1273                         __connman_element_unlock(element);
1274                         break;
1275                 }
1276         }
1277 }
1278
1279 static void register_element(gpointer data, gpointer user_data)
1280 {
1281         struct connman_element *element = data;
1282         const gchar *basepath;
1283         GNode *node;
1284
1285         __connman_element_lock(element);
1286
1287         if (element->parent) {
1288                 node = g_node_find(element_root, G_PRE_ORDER,
1289                                         G_TRAVERSE_ALL, element->parent);
1290                 basepath = element->parent->path;
1291         } else {
1292                 element->parent = element_root->data;
1293
1294                 node = element_root;
1295                 basepath = "";
1296         }
1297
1298         element->path = g_strdup_printf("%s/%s", basepath, element->name);
1299
1300         set_reference_properties(element);
1301
1302         __connman_element_unlock(element);
1303
1304         DBG("element %p path %s", element, element->path);
1305
1306         g_node_append_data(node, element);
1307
1308         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1309                 set_signal_strength(element);
1310                 emit_connections_signal(connection);
1311                 emit_state_change(connection, "online");
1312         }
1313
1314         emit_element_signal(connection, "ElementAdded", element);
1315
1316         if (started == FALSE)
1317                 return;
1318
1319         probe_element(element);
1320 }
1321
1322 /**
1323  * connman_element_register:
1324  * @element: the element to register
1325  * @parent: the parent to register the element with
1326  *
1327  * Register an element with the core. It will be register under the given
1328  * parent of if %NULL is provided under the root element.
1329  *
1330  * Returns: %0 on success
1331  */
1332 int connman_element_register(struct connman_element *element,
1333                                         struct connman_element *parent)
1334 {
1335         DBG("element %p name %s parent %p", element, element->name, parent);
1336
1337         if (element->devname == NULL)
1338                 element->devname = g_strdup(element->name);
1339
1340         if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE) {
1341                 if (g_pattern_match_simple(device_filter,
1342                                                 element->devname) == FALSE) {
1343                         DBG("ignoring %s [%s] device", element->name,
1344                                                         element->devname);
1345                         return -EPERM;
1346                 }
1347         }
1348
1349         if (connman_element_ref(element) == NULL)
1350                 return -EINVAL;
1351
1352         __connman_element_lock(element);
1353
1354         if (element->name == NULL) {
1355                 element->name = g_strdup(type2string(element->type));
1356                 if (element->name == NULL) {
1357                         __connman_element_unlock(element);
1358                         return -EINVAL;
1359                 }
1360         }
1361
1362         if (element->type == CONNMAN_ELEMENT_TYPE_DHCP)
1363                 element->ipv4.method = CONNMAN_IPV4_METHOD_DHCP;
1364
1365         element->parent = parent;
1366
1367         __connman_element_unlock(element);
1368
1369         register_element(element, NULL);
1370
1371         return 0;
1372 }
1373
1374 static gboolean remove_element(GNode *node, gpointer user_data)
1375 {
1376         struct connman_element *element = node->data;
1377         struct connman_element *root = user_data;
1378
1379         DBG("element %p name %s", element, element->name);
1380
1381         if (element == root)
1382                 return FALSE;
1383
1384         if (node != NULL)
1385                 g_node_unlink(node);
1386
1387         if (element->driver) {
1388                 if (element->driver->remove)
1389                         element->driver->remove(element);
1390
1391                 __connman_element_lock(element);
1392                 element->driver = NULL;
1393                 __connman_element_unlock(element);
1394         }
1395
1396         if (node != NULL)
1397                 g_node_destroy(node);
1398
1399         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1400                 if (__connman_element_count(NULL,
1401                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
1402                         emit_state_change(connection, "offline");
1403                 emit_connections_signal(connection);
1404         }
1405
1406         emit_element_signal(connection, "ElementRemoved", element);
1407
1408         connman_element_unref(element);
1409
1410         return FALSE;
1411 }
1412
1413 void connman_element_unregister(struct connman_element *element)
1414 {
1415         GNode *node;
1416
1417         DBG("element %p name %s", element, element->name);
1418
1419         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1420
1421         if (node != NULL)
1422                 g_node_traverse(node, G_POST_ORDER,
1423                                 G_TRAVERSE_ALL, -1, remove_element, NULL);
1424 }
1425
1426 void connman_element_unregister_children(struct connman_element *element)
1427 {
1428         GNode *node;
1429
1430         DBG("element %p name %s", element, element->name);
1431
1432         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1433
1434         if (node != NULL)
1435                 g_node_traverse(node, G_POST_ORDER,
1436                                 G_TRAVERSE_ALL, -1, remove_element, element);
1437 }
1438
1439 static gboolean update_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->driver && element->driver->update)
1447                 element->driver->update(element);
1448
1449         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION &&
1450                                 root->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1451                 if (element->strength != root->strength)
1452                         element->strength = root->strength;
1453         }
1454
1455         emit_element_signal(connection, "ElementUpdated", element);
1456
1457         return FALSE;
1458 }
1459
1460 void connman_element_update(struct connman_element *element)
1461 {
1462         GNode *node;
1463
1464         DBG("element %p name %s", element, element->name);
1465
1466         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1467
1468         if (node != NULL)
1469                 g_node_traverse(node, G_PRE_ORDER,
1470                                 G_TRAVERSE_ALL, -1, update_element, element);
1471 }
1472
1473 int connman_element_set_enabled(struct connman_element *element,
1474                                                         gboolean enabled)
1475 {
1476         if (element->enabled == enabled)
1477                 return 0;
1478
1479         element->enabled = enabled;
1480
1481         return 0;
1482 }
1483
1484 int __connman_element_init(DBusConnection *conn, const char *device)
1485 {
1486         struct connman_element *element;
1487
1488         DBG("conn %p", conn);
1489
1490         connection = dbus_connection_ref(conn);
1491         if (connection == NULL)
1492                 return -EIO;
1493
1494         device_filter = g_strdup(device);
1495
1496         element = connman_element_create("root");
1497
1498         element->path = g_strdup("/");
1499         element->type = CONNMAN_ELEMENT_TYPE_ROOT;
1500
1501         create_default_properties(element);
1502
1503         element_root = g_node_new(element);
1504
1505         __connman_network_init();
1506         __connman_device_init();
1507
1508         return 0;
1509 }
1510
1511 static gboolean probe_node(GNode *node, gpointer data)
1512 {
1513         struct connman_element *element = node->data;
1514
1515         DBG("element %p name %s", element, element->name);
1516
1517         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1518                 return FALSE;
1519
1520         if (element->driver)
1521                 return FALSE;
1522
1523         probe_element(element);
1524
1525         return FALSE;
1526 }
1527
1528 void __connman_element_start(void)
1529 {
1530         DBG("");
1531
1532         g_node_traverse(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1533                                                         probe_node, NULL);
1534
1535         started = TRUE;
1536
1537         __connman_connection_init();
1538         __connman_ipv4_init();
1539         __connman_detect_init();
1540 }
1541
1542 void __connman_element_stop(void)
1543 {
1544         DBG("");
1545
1546         __connman_detect_cleanup();
1547         __connman_ipv4_cleanup();
1548         __connman_connection_cleanup();
1549 }
1550
1551 static gboolean free_driver(GNode *node, gpointer data)
1552 {
1553         struct connman_element *element = node->data;
1554
1555         DBG("element %p name %s", element, element->name);
1556
1557         if (element->driver) {
1558                 if (element->driver->remove)
1559                         element->driver->remove(element);
1560
1561                 __connman_element_lock(element);
1562                 element->driver = NULL;
1563                 __connman_element_unlock(element);
1564         }
1565
1566         return FALSE;
1567 }
1568
1569 static gboolean free_node(GNode *node, gpointer data)
1570 {
1571         struct connman_element *element = node->data;
1572
1573         DBG("element %p name %s", element, element->name);
1574
1575         if (g_node_depth(node) > 1)
1576                 connman_element_unregister(element);
1577
1578         return FALSE;
1579 }
1580
1581 void __connman_element_cleanup(void)
1582 {
1583         DBG("");
1584
1585         __connman_device_cleanup();
1586         __connman_network_cleanup();
1587
1588         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1589                                                         free_driver, NULL);
1590
1591         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1592                                                         free_node, NULL);
1593
1594         g_node_destroy(element_root);
1595         element_root = NULL;
1596
1597         g_free(device_filter);
1598
1599         dbus_connection_unref(connection);
1600 }