git.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_ADDRESS:
1009                 if (element->ipv4.address == NULL)
1010                         return connman_element_get_value(element->parent,
1011                                                                 id, value);
1012                 __connman_element_lock(element);
1013                 *((char **) value) = element->ipv4.address;
1014                 __connman_element_unlock(element);
1015                 break;
1016         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1017                 if (element->ipv4.netmask == NULL)
1018                         return connman_element_get_value(element->parent,
1019                                                                 id, value);
1020                 __connman_element_lock(element);
1021                 *((char **) value) = element->ipv4.netmask;
1022                 __connman_element_unlock(element);
1023                 break;
1024         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1025                 if (element->ipv4.gateway == NULL)
1026                         return connman_element_get_value(element->parent,
1027                                                                 id, value);
1028                 __connman_element_lock(element);
1029                 *((char **) value) = element->ipv4.gateway;
1030                 __connman_element_unlock(element);
1031                 break;
1032         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
1033                 if (element->ipv4.broadcast == NULL)
1034                         return connman_element_get_value(element->parent,
1035                                                                 id, value);
1036                 __connman_element_lock(element);
1037                 *((char **) value) = element->ipv4.broadcast;
1038                 __connman_element_unlock(element);
1039                 break;
1040         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1041                 if (element->ipv4.nameserver == NULL)
1042                         return connman_element_get_value(element->parent,
1043                                                                 id, value);
1044                 __connman_element_lock(element);
1045                 *((char **) value) = element->ipv4.nameserver;
1046                 __connman_element_unlock(element);
1047                 break;
1048         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1049                 if (element->wifi.security == NULL)
1050                         return connman_element_get_value(element->parent,
1051                                                                 id, value);
1052                 __connman_element_lock(element);
1053                 *((char **) value) = element->wifi.security;
1054                 __connman_element_unlock(element);
1055                 break;
1056         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1057                 if (element->wifi.passphrase == NULL)
1058                         return connman_element_get_value(element->parent,
1059                                                                 id, value);
1060                 __connman_element_lock(element);
1061                 *((char **) value) = element->wifi.passphrase;
1062                 __connman_element_unlock(element);
1063                 break;
1064         default:
1065                 return -EINVAL;
1066         }
1067
1068         return 0;
1069 }
1070
1071 gboolean connman_element_get_static_property(struct connman_element *element,
1072                                                 const char *name, void *value)
1073 {
1074         GSList *list;
1075         gboolean found = FALSE;
1076
1077         DBG("element %p name %s", element, element->name);
1078
1079         __connman_element_lock(element);
1080
1081         for (list = element->properties; list; list = list->next) {
1082                 struct connman_property *property = list->data;
1083
1084                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1085                         continue;
1086
1087                 if (g_str_equal(property->name, name) == TRUE) {
1088                         switch (property->type) {
1089                         case DBUS_TYPE_STRING:
1090                                 *((char **) value) = property->value;
1091                                 found = TRUE;
1092                                 break;
1093                         }
1094                         break;
1095                 }
1096         }
1097
1098         __connman_element_unlock(element);
1099
1100         return found;
1101 }
1102
1103 gboolean connman_element_get_static_array_property(struct connman_element *element,
1104                                         const char *name, void *value, int *len)
1105 {
1106         GSList *list;
1107         gboolean found = FALSE;
1108
1109         DBG("element %p name %s", element, element->name);
1110
1111         __connman_element_lock(element);
1112
1113         for (list = element->properties; list; list = list->next) {
1114                 struct connman_property *property = list->data;
1115
1116                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1117                         continue;
1118
1119                 if (g_str_equal(property->name, name) == TRUE) {
1120                         *((char **) value) = property->value;
1121                         *len = property->size;
1122                         found = TRUE;
1123                         break;
1124                 }
1125         }
1126
1127         __connman_element_unlock(element);
1128
1129         return found;
1130 }
1131
1132 gboolean connman_element_match_static_property(struct connman_element *element,
1133                                         const char *name, const void *value)
1134 {
1135         GSList *list;
1136         gboolean result = FALSE;
1137
1138         DBG("element %p name %s", element, element->name);
1139
1140         __connman_element_lock(element);
1141
1142         for (list = element->properties; list; list = list->next) {
1143                 struct connman_property *property = list->data;
1144
1145                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1146                         continue;
1147
1148                 if (g_str_equal(property->name, name) == FALSE)
1149                         continue;
1150
1151                 if (property->type == DBUS_TYPE_STRING)
1152                         result = g_str_equal(property->value,
1153                                                 *((const char **) value));
1154
1155                 if (result == TRUE)
1156                         break;
1157         }
1158
1159         __connman_element_unlock(element);
1160
1161         return result;
1162 }
1163
1164 static void append_connections(DBusMessageIter *entry)
1165 {
1166         DBusMessageIter value, iter;
1167         const char *key = "Connections";
1168
1169         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1170
1171         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1172                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1173                                                                 &value);
1174
1175         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1176                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1177         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
1178         dbus_message_iter_close_container(&value, &iter);
1179
1180         dbus_message_iter_close_container(entry, &value);
1181 }
1182
1183 static void emit_connections_signal(DBusConnection *conn)
1184 {
1185         DBusMessage *signal;
1186         DBusMessageIter entry;
1187
1188         DBG("conn %p", conn);
1189
1190         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1191                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1192         if (signal == NULL)
1193                 return;
1194
1195         dbus_message_iter_init_append(signal, &entry);
1196
1197         append_connections(&entry);
1198
1199         g_dbus_send_message(conn, signal);
1200 }
1201
1202 static void append_state(DBusMessageIter *entry, const char *state)
1203 {
1204         DBusMessageIter value;
1205         const char *key = "State";
1206
1207         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1208
1209         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1210                                         DBUS_TYPE_STRING_AS_STRING, &value);
1211         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &state);
1212         dbus_message_iter_close_container(entry, &value);
1213 }
1214
1215 static void emit_state_change(DBusConnection *conn, const char *state)
1216 {
1217         DBusMessage *signal;
1218         DBusMessageIter entry;
1219
1220         DBG("conn %p", conn);
1221
1222         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1223                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1224         if (signal == NULL)
1225                 return;
1226
1227         dbus_message_iter_init_append(signal, &entry);
1228
1229         append_state(&entry, state);
1230
1231         g_dbus_send_message(conn, signal);
1232 }
1233
1234 static void set_signal_strength(struct connman_element *connection)
1235 {
1236         struct connman_element *element = connection;
1237
1238         while (element != NULL) {
1239                 if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1240                         connection->strength = element->strength;
1241                         break;
1242                 }
1243
1244                 element = element->parent;
1245         }
1246 }
1247
1248 static void probe_element(struct connman_element *element)
1249 {
1250         GSList *list;
1251
1252         DBG("element %p name %s", element, element->name);
1253
1254         for (list = driver_list; list; list = list->next) {
1255                 struct connman_driver *driver = list->data;
1256
1257                 if (match_driver(element, driver) == FALSE)
1258                         continue;
1259
1260                 DBG("driver %p name %s", driver, driver->name);
1261
1262                 if (driver->probe(element) == 0) {
1263                         __connman_element_lock(element);
1264                         element->driver = driver;
1265                         __connman_element_unlock(element);
1266                         break;
1267                 }
1268         }
1269 }
1270
1271 static void register_element(gpointer data, gpointer user_data)
1272 {
1273         struct connman_element *element = data;
1274         const gchar *basepath;
1275         GNode *node;
1276
1277         __connman_element_lock(element);
1278
1279         if (element->parent) {
1280                 node = g_node_find(element_root, G_PRE_ORDER,
1281                                         G_TRAVERSE_ALL, element->parent);
1282                 basepath = element->parent->path;
1283         } else {
1284                 element->parent = element_root->data;
1285
1286                 node = element_root;
1287                 basepath = "";
1288         }
1289
1290         element->path = g_strdup_printf("%s/%s", basepath, element->name);
1291
1292         set_reference_properties(element);
1293
1294         __connman_element_unlock(element);
1295
1296         DBG("element %p path %s", element, element->path);
1297
1298         g_node_append_data(node, element);
1299
1300         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1301                 set_signal_strength(element);
1302                 emit_connections_signal(connection);
1303                 emit_state_change(connection, "online");
1304         }
1305
1306         emit_element_signal(connection, "ElementAdded", element);
1307
1308         if (started == FALSE)
1309                 return;
1310
1311         probe_element(element);
1312 }
1313
1314 /**
1315  * connman_element_register:
1316  * @element: the element to register
1317  * @parent: the parent to register the element with
1318  *
1319  * Register an element with the core. It will be register under the given
1320  * parent of if %NULL is provided under the root element.
1321  *
1322  * Returns: %0 on success
1323  */
1324 int connman_element_register(struct connman_element *element,
1325                                         struct connman_element *parent)
1326 {
1327         DBG("element %p name %s parent %p", element, element->name, parent);
1328
1329         if (element->devname == NULL)
1330                 element->devname = g_strdup(element->name);
1331
1332         if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE) {
1333                 if (g_pattern_match_simple(device_filter,
1334                                                 element->devname) == FALSE) {
1335                         DBG("ignoring %s [%s] device", element->name,
1336                                                         element->devname);
1337                         return -EPERM;
1338                 }
1339         }
1340
1341         if (connman_element_ref(element) == NULL)
1342                 return -EINVAL;
1343
1344         __connman_element_lock(element);
1345
1346         if (element->name == NULL) {
1347                 element->name = g_strdup(type2string(element->type));
1348                 if (element->name == NULL) {
1349                         __connman_element_unlock(element);
1350                         return -EINVAL;
1351                 }
1352         }
1353
1354         element->parent = parent;
1355
1356         __connman_element_unlock(element);
1357
1358         register_element(element, NULL);
1359
1360         return 0;
1361 }
1362
1363 static gboolean remove_element(GNode *node, gpointer user_data)
1364 {
1365         struct connman_element *element = node->data;
1366         struct connman_element *root = user_data;
1367
1368         DBG("element %p name %s", element, element->name);
1369
1370         if (element == root)
1371                 return FALSE;
1372
1373         if (node != NULL)
1374                 g_node_unlink(node);
1375
1376         if (element->driver) {
1377                 if (element->driver->remove)
1378                         element->driver->remove(element);
1379
1380                 __connman_element_lock(element);
1381                 element->driver = NULL;
1382                 __connman_element_unlock(element);
1383         }
1384
1385         if (node != NULL)
1386                 g_node_destroy(node);
1387
1388         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1389                 if (__connman_element_count(NULL,
1390                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
1391                         emit_state_change(connection, "offline");
1392                 emit_connections_signal(connection);
1393         }
1394
1395         emit_element_signal(connection, "ElementRemoved", element);
1396
1397         connman_element_unref(element);
1398
1399         return FALSE;
1400 }
1401
1402 void connman_element_unregister(struct connman_element *element)
1403 {
1404         GNode *node;
1405
1406         DBG("element %p name %s", element, element->name);
1407
1408         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1409
1410         if (node != NULL)
1411                 g_node_traverse(node, G_POST_ORDER,
1412                                 G_TRAVERSE_ALL, -1, remove_element, NULL);
1413 }
1414
1415 void connman_element_unregister_children(struct connman_element *element)
1416 {
1417         GNode *node;
1418
1419         DBG("element %p name %s", element, element->name);
1420
1421         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1422
1423         if (node != NULL)
1424                 g_node_traverse(node, G_POST_ORDER,
1425                                 G_TRAVERSE_ALL, -1, remove_element, element);
1426 }
1427
1428 static gboolean update_element(GNode *node, gpointer user_data)
1429 {
1430         struct connman_element *element = node->data;
1431         struct connman_element *root = user_data;
1432
1433         DBG("element %p name %s", element, element->name);
1434
1435         if (element->driver && element->driver->update)
1436                 element->driver->update(element);
1437
1438         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION &&
1439                                 root->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1440                 if (element->strength != root->strength)
1441                         element->strength = root->strength;
1442         }
1443
1444         emit_element_signal(connection, "ElementUpdated", element);
1445
1446         return FALSE;
1447 }
1448
1449 void connman_element_update(struct connman_element *element)
1450 {
1451         GNode *node;
1452
1453         DBG("element %p name %s", element, element->name);
1454
1455         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1456
1457         if (node != NULL)
1458                 g_node_traverse(node, G_PRE_ORDER,
1459                                 G_TRAVERSE_ALL, -1, update_element, element);
1460 }
1461
1462 int connman_element_set_enabled(struct connman_element *element,
1463                                                         gboolean enabled)
1464 {
1465         if (element->enabled == enabled)
1466                 return 0;
1467
1468         element->enabled = enabled;
1469
1470         return 0;
1471 }
1472
1473 int __connman_element_init(DBusConnection *conn, const char *device)
1474 {
1475         struct connman_element *element;
1476
1477         DBG("conn %p", conn);
1478
1479         connection = dbus_connection_ref(conn);
1480         if (connection == NULL)
1481                 return -EIO;
1482
1483         device_filter = g_strdup(device);
1484
1485         element = connman_element_create("root");
1486
1487         element->path = g_strdup("/");
1488         element->type = CONNMAN_ELEMENT_TYPE_ROOT;
1489
1490         create_default_properties(element);
1491
1492         element_root = g_node_new(element);
1493
1494         __connman_network_init();
1495         __connman_device_init();
1496
1497         return 0;
1498 }
1499
1500 static gboolean probe_node(GNode *node, gpointer data)
1501 {
1502         struct connman_element *element = node->data;
1503
1504         DBG("element %p name %s", element, element->name);
1505
1506         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1507                 return FALSE;
1508
1509         if (element->driver)
1510                 return FALSE;
1511
1512         probe_element(element);
1513
1514         return FALSE;
1515 }
1516
1517 void __connman_element_start(void)
1518 {
1519         DBG("");
1520
1521         g_node_traverse(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1522                                                         probe_node, NULL);
1523
1524         started = TRUE;
1525
1526         __connman_connection_init();
1527         __connman_ipv4_init();
1528         __connman_detect_init();
1529 }
1530
1531 void __connman_element_stop(void)
1532 {
1533         DBG("");
1534
1535         __connman_detect_cleanup();
1536         __connman_ipv4_cleanup();
1537         __connman_connection_cleanup();
1538 }
1539
1540 static gboolean free_driver(GNode *node, gpointer data)
1541 {
1542         struct connman_element *element = node->data;
1543
1544         DBG("element %p name %s", element, element->name);
1545
1546         if (element->driver) {
1547                 if (element->driver->remove)
1548                         element->driver->remove(element);
1549
1550                 __connman_element_lock(element);
1551                 element->driver = NULL;
1552                 __connman_element_unlock(element);
1553         }
1554
1555         return FALSE;
1556 }
1557
1558 static gboolean free_node(GNode *node, gpointer data)
1559 {
1560         struct connman_element *element = node->data;
1561
1562         DBG("element %p name %s", element, element->name);
1563
1564         if (g_node_depth(node) > 1)
1565                 connman_element_unregister(element);
1566
1567         return FALSE;
1568 }
1569
1570 void __connman_element_cleanup(void)
1571 {
1572         DBG("");
1573
1574         __connman_device_cleanup();
1575         __connman_network_cleanup();
1576
1577         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1578                                                         free_driver, NULL);
1579
1580         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1581                                                         free_node, NULL);
1582
1583         g_node_destroy(element_root);
1584         element_root = NULL;
1585
1586         g_free(device_filter);
1587
1588         dbus_connection_unref(connection);
1589 }