git.maemo.org Git - connman/blob - src/element.c

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2008  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 struct {
  42         enum connman_property_id id;
  43         int type;
  44         const char *name;
  45         const void *value;
  46 } propid_table[] = {
  47         { CONNMAN_PROPERTY_ID_IPV4_METHOD,
  48                 DBUS_TYPE_STRING, "IPv4.Method", "dhcp" },
  49         { CONNMAN_PROPERTY_ID_IPV4_ADDRESS,
  50                 DBUS_TYPE_STRING, "IPv4.Address" },
  51         { CONNMAN_PROPERTY_ID_IPV4_NETMASK,
  52                 DBUS_TYPE_STRING, "IPv4.Netmask" },
  53         { CONNMAN_PROPERTY_ID_IPV4_GATEWAY,
  54                 DBUS_TYPE_STRING, "IPv4.Gateway" },
  55         { CONNMAN_PROPERTY_ID_IPV4_BROADCAST,
  56                 DBUS_TYPE_STRING, "IPv4.Broadcast" },
  57         { CONNMAN_PROPERTY_ID_IPV4_NAMESERVER,
  58                 DBUS_TYPE_STRING, "IPv4.Nameserver" },
  59
  60         { CONNMAN_PROPERTY_ID_WIFI_SECURITY,
  61                 DBUS_TYPE_STRING, "WiFi.Security" },
  62         { CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE,
  63                 DBUS_TYPE_STRING, "WiFi.Passphrase" },
  64
  65         { }
  66 };
  67
  68 static int propid2type(enum connman_property_id id)
  69 {
  70         int i;
  71
  72         for (i = 0; propid_table[i].name; i++) {
  73                 if (propid_table[i].id == id)
  74                         return propid_table[i].type;
  75         }
  76
  77         return DBUS_TYPE_INVALID;
  78 }
  79
  80 static const char *propid2name(enum connman_property_id id)
  81 {
  82         int i;
  83
  84         for (i = 0; propid_table[i].name; i++) {
  85                 if (propid_table[i].id == id)
  86                         return propid_table[i].name;
  87         }
  88
  89         return NULL;
  90 }
  91
  92 static const char *type2string(enum connman_element_type type)
  93 {
  94         switch (type) {
  95         case CONNMAN_ELEMENT_TYPE_UNKNOWN:
  96                 return "unknown";
  97         case CONNMAN_ELEMENT_TYPE_ROOT:
  98                 return "root";
  99         case CONNMAN_ELEMENT_TYPE_PROFILE:
 100                 return "profile";
 101         case CONNMAN_ELEMENT_TYPE_DEVICE:
 102                 return "device";
 103         case CONNMAN_ELEMENT_TYPE_NETWORK:
 104                 return "network";
 105         case CONNMAN_ELEMENT_TYPE_SERVICE:
 106                 return "service";
 107         case CONNMAN_ELEMENT_TYPE_IPV4:
 108                 return "ipv4";
 109         case CONNMAN_ELEMENT_TYPE_IPV6:
 110                 return "ipv6";
 111         case CONNMAN_ELEMENT_TYPE_DHCP:
 112                 return "dhcp";
 113         case CONNMAN_ELEMENT_TYPE_BOOTP:
 114                 return "bootp";
 115         case CONNMAN_ELEMENT_TYPE_ZEROCONF:
 116                 return "zeroconf";
 117         case CONNMAN_ELEMENT_TYPE_CONNECTION:
 118                 return "connection";
 119         }
 120
 121         return NULL;
 122 }
 123
 124 static const char *subtype2string(enum connman_element_subtype type)
 125 {
 126         switch (type) {
 127         case CONNMAN_ELEMENT_SUBTYPE_UNKNOWN:
 128                 return "unknown";
 129         case CONNMAN_ELEMENT_SUBTYPE_FAKE:
 130                 return "fake";
 131         case CONNMAN_ELEMENT_SUBTYPE_NETWORK:
 132                 return "network";
 133         case CONNMAN_ELEMENT_SUBTYPE_ETHERNET:
 134                 return "ethernet";
 135         case CONNMAN_ELEMENT_SUBTYPE_WIFI:
 136                 return "wifi";
 137         case CONNMAN_ELEMENT_SUBTYPE_WIMAX:
 138                 return "wimax";
 139         case CONNMAN_ELEMENT_SUBTYPE_MODEM:
 140                 return "modem";
 141         case CONNMAN_ELEMENT_SUBTYPE_BLUETOOTH:
 142                 return "bluetooth";
 143         }
 144
 145         return NULL;
 146 }
 147
 148 static const char *subtype2description(enum connman_element_subtype type)
 149 {
 150         switch (type) {
 151         case CONNMAN_ELEMENT_SUBTYPE_UNKNOWN:
 152         case CONNMAN_ELEMENT_SUBTYPE_FAKE:
 153         case CONNMAN_ELEMENT_SUBTYPE_NETWORK:
 154                 return NULL;
 155         case CONNMAN_ELEMENT_SUBTYPE_ETHERNET:
 156                 return "Ethernet";
 157         case CONNMAN_ELEMENT_SUBTYPE_WIFI:
 158                 return "Wireless";
 159         case CONNMAN_ELEMENT_SUBTYPE_WIMAX:
 160                 return "WiMAX";
 161         case CONNMAN_ELEMENT_SUBTYPE_MODEM:
 162                 return "Modem";
 163         case CONNMAN_ELEMENT_SUBTYPE_BLUETOOTH:
 164                 return "Bluetooth";
 165         }
 166
 167         return NULL;
 168 }
 169
 170 const char *__connman_element_policy2string(enum connman_element_policy policy)
 171 {
 172         switch (policy) {
 173         case CONNMAN_ELEMENT_POLICY_UNKNOWN:
 174                 return "unknown";
 175         case CONNMAN_ELEMENT_POLICY_IGNORE:
 176                 return "ignore";
 177         case CONNMAN_ELEMENT_POLICY_AUTO:
 178                 return "auto";
 179         case CONNMAN_ELEMENT_POLICY_ASK:
 180                 return "ask";
 181         }
 182
 183         return NULL;
 184 }
 185
 186 enum connman_element_policy __connman_element_string2policy(const char *policy)
 187 {
 188         if (strcasecmp(policy, "ignore") == 0)
 189                 return CONNMAN_ELEMENT_POLICY_IGNORE;
 190         else if (strcasecmp(policy, "auto") == 0)
 191                 return CONNMAN_ELEMENT_POLICY_AUTO;
 192         else if (strcasecmp(policy, "ask") == 0)
 193                 return CONNMAN_ELEMENT_POLICY_ASK;
 194         else
 195                 return CONNMAN_ELEMENT_POLICY_UNKNOWN;
 196 }
 197
 198 const char *__connman_ipv4_method2string(enum connman_ipv4_method method)
 199 {
 200         switch (method) {
 201         case CONNMAN_IPV4_METHOD_UNKNOWN:
 202                 return "unknown";
 203         case CONNMAN_IPV4_METHOD_OFF:
 204                 return "off";
 205         case CONNMAN_IPV4_METHOD_STATIC:
 206                 return "static";
 207         case CONNMAN_IPV4_METHOD_DHCP:
 208                 return "dhcp";
 209         }
 210
 211         return "unknown";
 212 }
 213
 214 enum connman_ipv4_method __connman_ipv4_string2method(const char *method)
 215 {
 216         if (strcasecmp(method, "off") == 0)
 217                 return CONNMAN_IPV4_METHOD_OFF;
 218         else if (strcasecmp(method, "static") == 0)
 219                 return CONNMAN_IPV4_METHOD_STATIC;
 220         else if (strcasecmp(method, "dhcp") == 0)
 221                 return CONNMAN_IPV4_METHOD_DHCP;
 222         else
 223                 return CONNMAN_IPV4_METHOD_UNKNOWN;
 224 }
 225
 226 static void append_property(DBusMessageIter *dict,
 227                                 struct connman_property *property)
 228 {
 229         if (property->value == NULL)
 230                 return;
 231
 232         switch (property->type) {
 233         case DBUS_TYPE_ARRAY:
 234                 connman_dbus_dict_append_array(dict, property->name,
 235                         property->subtype, &property->value, property->size);
 236                 break;
 237         case DBUS_TYPE_STRING:
 238                 connman_dbus_dict_append_variant(dict, property->name,
 239                                         property->type, &property->value);
 240                 break;
 241         default:
 242                 connman_dbus_dict_append_variant(dict, property->name,
 243                                         property->type, property->value);
 244                 break;
 245         }
 246 }
 247
 248 static void add_common_properties(struct connman_element *element,
 249                                                 DBusMessageIter *dict)
 250 {
 251         const char *address = NULL, *netmask = NULL, *gateway = NULL;
 252         GSList *list;
 253
 254         connman_element_get_value(element,
 255                                 CONNMAN_PROPERTY_ID_IPV4_ADDRESS, &address);
 256         connman_element_get_value(element,
 257                                 CONNMAN_PROPERTY_ID_IPV4_NETMASK, &netmask);
 258         connman_element_get_value(element,
 259                                 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
 260
 261         if (element->priority > 0)
 262                 connman_dbus_dict_append_variant(dict, "Priority",
 263                                         DBUS_TYPE_UINT16, &element->priority);
 264
 265         if (address != NULL)
 266                 connman_dbus_dict_append_variant(dict, "IPv4.Address",
 267                                                 DBUS_TYPE_STRING, &address);
 268         if (netmask != NULL)
 269                 connman_dbus_dict_append_variant(dict, "IPv4.Netmask",
 270                                                 DBUS_TYPE_STRING, &netmask);
 271         if (gateway != NULL)
 272                 connman_dbus_dict_append_variant(dict, "IPv4.Gateway",
 273                                                 DBUS_TYPE_STRING, &gateway);
 274
 275         if (element->wifi.security != NULL) {
 276                 const char *passphrase = "";
 277
 278                 connman_dbus_dict_append_variant(dict, "WiFi.Security",
 279                                 DBUS_TYPE_STRING, &element->wifi.security);
 280
 281                 if (element->wifi.passphrase != NULL)
 282                         passphrase = element->wifi.passphrase;
 283
 284                 connman_dbus_dict_append_variant(dict, "WiFi.Passphrase",
 285                                 DBUS_TYPE_STRING, &passphrase);
 286         }
 287
 288         __connman_element_lock(element);
 289
 290         for (list = element->properties; list; list = list->next) {
 291                 struct connman_property *property = list->data;
 292
 293                 append_property(dict, property);
 294         }
 295
 296         __connman_element_unlock(element);
 297 }
 298
 299 static void set_common_property(struct connman_element *element,
 300                                 const char *name, DBusMessageIter *value)
 301 {
 302         GSList *list;
 303
 304         if (g_str_equal(name, "Priority") == TRUE) {
 305                 dbus_message_iter_get_basic(value, &element->priority);
 306                 return;
 307         }
 308
 309         __connman_element_lock(element);
 310
 311         for (list = element->properties; list; list = list->next) {
 312                 struct connman_property *property = list->data;
 313                 const char *str;
 314
 315                 if (g_str_equal(property->name, name) == FALSE)
 316                         continue;
 317
 318                 if (property->flags & CONNMAN_PROPERTY_FLAG_STATIC)
 319                         continue;
 320
 321                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
 322
 323                 if (property->type == DBUS_TYPE_STRING) {
 324                         dbus_message_iter_get_basic(value, &str);
 325                         g_free(property->value);
 326                         property->value = g_strdup(str);
 327                 } else
 328                         property->value = NULL;
 329         }
 330
 331         __connman_element_unlock(element);
 332 }
 333
 334 static void emit_enabled_signal(DBusConnection *conn,
 335                                         struct connman_element *element)
 336 {
 337         DBusMessage *signal;
 338         DBusMessageIter entry, value;
 339         const char *iface, *key;
 340
 341         DBG("conn %p", conn);
 342
 343         if (element == NULL)
 344                 return;
 345
 346         switch (element->type) {
 347         case CONNMAN_ELEMENT_TYPE_DEVICE:
 348                 iface = CONNMAN_DEVICE_INTERFACE;
 349                 key = "Powered";
 350                 break;
 351         case CONNMAN_ELEMENT_TYPE_NETWORK:
 352                 iface = CONNMAN_NETWORK_INTERFACE;
 353                 key = "Connected";
 354                 break;
 355         case CONNMAN_ELEMENT_TYPE_CONNECTION:
 356                 iface = CONNMAN_CONNECTION_INTERFACE;
 357                 key = "Default";
 358                 break;
 359         default:
 360                 return;
 361         }
 362
 363         signal = dbus_message_new_signal(element->path,
 364                                                 iface, "PropertyChanged");
 365         if (signal == NULL)
 366                 return;
 367
 368         dbus_message_iter_init_append(signal, &entry);
 369
 370         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 371
 372         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 373                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 374         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN,
 375                                                         &element->enabled);
 376         dbus_message_iter_close_container(&entry, &value);
 377
 378         g_dbus_send_message(conn, signal);
 379 }
 380
 381 static DBusMessage *do_update(DBusConnection *conn,
 382                                         DBusMessage *msg, void *data)
 383 {
 384         struct connman_element *element = data;
 385
 386         DBG("conn %p", conn);
 387
 388         if (element->enabled == FALSE)
 389                 return __connman_error_failed(msg);
 390
 391         if (element->driver && element->driver->update) {
 392                 DBG("Calling update callback");
 393                 if (element->driver->update(element) < 0)
 394                         return __connman_error_failed(msg);
 395
 396         }
 397
 398         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 399 }
 400
 401 static DBusMessage *do_enable(DBusConnection *conn,
 402                                         DBusMessage *msg, void *data)
 403 {
 404         struct connman_element *element = data;
 405
 406         DBG("conn %p", conn);
 407
 408         if (element->enabled == TRUE)
 409                 return __connman_error_failed(msg);
 410
 411         if (element->driver && element->driver->enable) {
 412                 DBG("Calling enable callback");
 413                 if (element->driver->enable(element) < 0)
 414                         return __connman_error_failed(msg);
 415         }
 416
 417         element->enabled = TRUE;
 418
 419         emit_enabled_signal(connection, element);
 420
 421         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 422 }
 423
 424 static DBusMessage *do_disable(DBusConnection *conn,
 425                                         DBusMessage *msg, void *data)
 426 {
 427         struct connman_element *element = data;
 428
 429         DBG("conn %p", conn);
 430
 431         if (element->enabled == FALSE)
 432                 return __connman_error_failed(msg);
 433
 434         if (element->driver && element->driver->disable) {
 435                 DBG("Calling disable callback");
 436                 if (element->driver->disable(element) < 0)
 437                         return __connman_error_failed(msg);
 438         }
 439
 440         element->enabled = FALSE;
 441
 442         emit_enabled_signal(connection, element);
 443
 444         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 445 }
 446
 447 static void append_networks(struct connman_element *element,
 448                                                 DBusMessageIter *entry)
 449 {
 450         DBusMessageIter value, iter;
 451         const char *key = "Networks";
 452
 453         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 454
 455         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
 456                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
 457                                                                 &value);
 458
 459         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
 460                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
 461
 462         __connman_element_list(element, CONNMAN_ELEMENT_TYPE_NETWORK, &iter);
 463
 464         dbus_message_iter_close_container(&value, &iter);
 465
 466         dbus_message_iter_close_container(entry, &value);
 467 }
 468
 469 static DBusMessage *device_get_properties(DBusConnection *conn,
 470                                         DBusMessage *msg, void *data)
 471 {
 472         struct connman_element *element = data;
 473         DBusMessage *reply;
 474         DBusMessageIter array, dict, entry;
 475         const char *str;
 476
 477         DBG("conn %p", conn);
 478
 479         reply = dbus_message_new_method_return(msg);
 480         if (reply == NULL)
 481                 return NULL;
 482
 483         dbus_message_iter_init_append(reply, &array);
 484
 485         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 486                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 487                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 488                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 489
 490         str = subtype2description(element->subtype);
 491         if (str != NULL && element->devname != NULL) {
 492                 char *name = g_strdup_printf("%s (%s)", str, element->devname);
 493                 if (name != NULL)
 494                         connman_dbus_dict_append_variant(&dict, "Name",
 495                                                 DBUS_TYPE_STRING, &name);
 496                 g_free(name);
 497         }
 498
 499         str = subtype2string(element->subtype);
 500         if (str != NULL)
 501                 connman_dbus_dict_append_variant(&dict, "Type",
 502                                                 DBUS_TYPE_STRING, &str);
 503
 504         str = __connman_element_policy2string(element->policy);
 505         if (str != NULL)
 506                 connman_dbus_dict_append_variant(&dict, "Policy",
 507                                                 DBUS_TYPE_STRING, &str);
 508
 509         connman_dbus_dict_append_variant(&dict, "Powered",
 510                                         DBUS_TYPE_BOOLEAN, &element->enabled);
 511
 512         if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIFI ||
 513                         element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIMAX) {
 514                 dbus_bool_t scanning = FALSE;
 515
 516                 connman_dbus_dict_append_variant(&dict, "Scanning",
 517                                                 DBUS_TYPE_BOOLEAN, &scanning);
 518
 519                 dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
 520                                                                 NULL, &entry);
 521                 append_networks(element, &entry);
 522                 dbus_message_iter_close_container(&dict, &entry);
 523         }
 524
 525         add_common_properties(element, &dict);
 526
 527         dbus_message_iter_close_container(&array, &dict);
 528
 529         return reply;
 530 }
 531
 532 static DBusMessage *device_set_property(DBusConnection *conn,
 533                                         DBusMessage *msg, void *data)
 534 {
 535         struct connman_element *element = data;
 536         DBusMessageIter iter, value;
 537         const char *name;
 538
 539         DBG("conn %p", conn);
 540
 541         if (dbus_message_iter_init(msg, &iter) == FALSE)
 542                 return __connman_error_invalid_arguments(msg);
 543
 544         dbus_message_iter_get_basic(&iter, &name);
 545         dbus_message_iter_next(&iter);
 546         dbus_message_iter_recurse(&iter, &value);
 547
 548         if (__connman_security_check_privileges(msg) < 0)
 549                 return __connman_error_permission_denied(msg);
 550
 551         if (g_str_equal(name, "Powered") == TRUE) {
 552                 dbus_bool_t powered;
 553
 554                 dbus_message_iter_get_basic(&value, &powered);
 555
 556                 if (powered == TRUE)
 557                         do_enable(conn, msg, element);
 558                 else
 559                         do_disable(conn, msg, element);
 560         } else
 561                 set_common_property(element, name, &value);
 562
 563         __connman_element_store(element);
 564
 565         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 566 }
 567
 568 static int parse_network_dict(DBusMessageIter *iter, const char **ssid,
 569                                 const char **security, const char **passphrase)
 570 {
 571         while (dbus_message_iter_get_arg_type(iter) == DBUS_TYPE_DICT_ENTRY) {
 572                 DBusMessageIter entry, value;
 573                 const char *key;
 574
 575                 dbus_message_iter_recurse(iter, &entry);
 576                 dbus_message_iter_get_basic(&entry, &key);
 577
 578                 dbus_message_iter_next(&entry);
 579                 dbus_message_iter_recurse(&entry, &value);
 580
 581                 switch (dbus_message_iter_get_arg_type(&value)) {
 582                 case DBUS_TYPE_STRING:
 583                         if (g_str_equal(key, "WiFi.SSID") == TRUE)
 584                                 dbus_message_iter_get_basic(&value, ssid);
 585                         else if (g_str_equal(key, "WiFi.Security") == TRUE)
 586                                 dbus_message_iter_get_basic(&value, security);
 587                         else if (g_str_equal(key, "WiFi.Passphrase") == TRUE)
 588                                 dbus_message_iter_get_basic(&value, passphrase);
 589                         break;
 590                 }
 591
 592                 dbus_message_iter_next(iter);
 593         }
 594
 595         return 0;
 596 }
 597
 598 static DBusMessage *device_create_network(DBusConnection *conn,
 599                                         DBusMessage *msg, void *data)
 600 {
 601         struct connman_element *element = data;
 602         struct connman_element *network;
 603         DBusMessageIter iter, array;
 604         const char *ssid = NULL, *security = NULL, *passphrase = NULL;
 605
 606         DBG("conn %p", conn);
 607
 608         if (dbus_message_iter_init(msg, &iter) == FALSE)
 609                 return __connman_error_invalid_arguments(msg);
 610
 611         dbus_message_iter_recurse(&iter, &array);
 612         parse_network_dict(&array, &ssid, &security, &passphrase);
 613         if (ssid == NULL)
 614                 return __connman_error_invalid_arguments(msg);
 615
 616         DBG("ssid %s security %s passphrase %s", ssid, security, passphrase);
 617
 618         network = connman_element_create(ssid);
 619
 620         network->type = CONNMAN_ELEMENT_TYPE_NETWORK;
 621         network->index = element->index;
 622
 623         network->remember = TRUE;
 624
 625         connman_element_add_static_property(network, "Name",
 626                                                 DBUS_TYPE_STRING, &ssid);
 627
 628         connman_element_add_static_array_property(element, "WiFi.SSID",
 629                                         DBUS_TYPE_BYTE, &ssid, strlen(ssid));
 630
 631         network->wifi.security = g_strdup(security);
 632         network->wifi.passphrase = g_strdup(passphrase);
 633
 634         connman_element_register(network, element);
 635
 636         return g_dbus_create_reply(msg, DBUS_TYPE_OBJECT_PATH, &network->path,
 637                                                         DBUS_TYPE_INVALID);
 638 }
 639
 640 static DBusMessage *device_remove_network(DBusConnection *conn,
 641                                         DBusMessage *msg, void *data)
 642 {
 643         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 644 }
 645
 646 static DBusMessage *network_get_properties(DBusConnection *conn,
 647                                         DBusMessage *msg, void *data)
 648 {
 649         struct connman_element *element = data;
 650         DBusMessage *reply;
 651         DBusMessageIter array, dict;
 652         const char *str;
 653
 654         DBG("conn %p", conn);
 655
 656         reply = dbus_message_new_method_return(msg);
 657         if (reply == NULL)
 658                 return NULL;
 659
 660         dbus_message_iter_init_append(reply, &array);
 661
 662         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 663                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 664                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 665                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 666
 667         str = __connman_element_policy2string(element->policy);
 668         if (str != NULL)
 669                 connman_dbus_dict_append_variant(&dict, "Policy",
 670                                                 DBUS_TYPE_STRING, &str);
 671
 672         connman_dbus_dict_append_variant(&dict, "Available",
 673                                         DBUS_TYPE_BOOLEAN, &element->available);
 674
 675         connman_dbus_dict_append_variant(&dict, "Connected",
 676                                         DBUS_TYPE_BOOLEAN, &element->enabled);
 677
 678         connman_dbus_dict_append_variant(&dict, "Remember",
 679                                         DBUS_TYPE_BOOLEAN, &element->remember);
 680
 681         add_common_properties(element, &dict);
 682
 683         dbus_message_iter_close_container(&array, &dict);
 684
 685         return reply;
 686 }
 687
 688 static DBusMessage *network_set_property(DBusConnection *conn,
 689                                         DBusMessage *msg, void *data)
 690 {
 691         struct connman_element *element = data;
 692         DBusMessageIter iter;
 693         DBusMessageIter value;
 694         const char *name;
 695
 696         DBG("conn %p", conn);
 697
 698         if (dbus_message_iter_init(msg, &iter) == FALSE)
 699                 return __connman_error_invalid_arguments(msg);
 700
 701         dbus_message_iter_get_basic(&iter, &name);
 702         dbus_message_iter_next(&iter);
 703         dbus_message_iter_recurse(&iter, &value);
 704
 705         if (__connman_security_check_privileges(msg) < 0)
 706                 return __connman_error_permission_denied(msg);
 707
 708         if (g_str_equal(name, "Remember") == TRUE) {
 709                 dbus_message_iter_get_basic(&value, &element->remember);
 710         } else if (g_str_equal(name, "WiFi.Passphrase") == TRUE) {
 711                 const char *str;
 712
 713                 dbus_message_iter_get_basic(&value, &str);
 714                 g_free(element->wifi.passphrase);
 715                 element->wifi.passphrase = g_strdup(str);
 716         } else
 717                 set_common_property(element, name, &value);
 718
 719         __connman_element_store(element);
 720
 721         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 722 }
 723
 724 static DBusMessage *connection_get_properties(DBusConnection *conn,
 725                                         DBusMessage *msg, void *data)
 726 {
 727         struct connman_element *element = data;
 728         DBusMessage *reply;
 729         DBusMessageIter array, dict;
 730         const char *str;
 731
 732         DBG("conn %p", conn);
 733
 734         reply = dbus_message_new_method_return(msg);
 735         if (reply == NULL)
 736                 return NULL;
 737
 738         dbus_message_iter_init_append(reply, &array);
 739
 740         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 741                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 742                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 743                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 744
 745         str = subtype2string(element->subtype);
 746         if (str != NULL)
 747                 connman_dbus_dict_append_variant(&dict, "Type",
 748                                                 DBUS_TYPE_STRING, &str);
 749
 750         if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIFI ||
 751                         element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIMAX)
 752                 connman_dbus_dict_append_variant(&dict, "Strength",
 753                                         DBUS_TYPE_BYTE, &element->strength);
 754
 755         connman_dbus_dict_append_variant(&dict, "Default",
 756                                         DBUS_TYPE_BOOLEAN, &element->enabled);
 757
 758         add_common_properties(element, &dict);
 759
 760         dbus_message_iter_close_container(&array, &dict);
 761
 762         return reply;
 763 }
 764
 765 static DBusMessage *connection_set_property(DBusConnection *conn,
 766                                         DBusMessage *msg, void *data)
 767 {
 768         struct connman_element *element = data;
 769         DBusMessageIter iter, value;
 770         const char *name;
 771
 772         DBG("conn %p", conn);
 773
 774         if (dbus_message_iter_init(msg, &iter) == FALSE)
 775                 return __connman_error_invalid_arguments(msg);
 776
 777         dbus_message_iter_get_basic(&iter, &name);
 778         dbus_message_iter_next(&iter);
 779         dbus_message_iter_recurse(&iter, &value);
 780
 781         if (__connman_security_check_privileges(msg) < 0)
 782                 return __connman_error_permission_denied(msg);
 783
 784         if (g_str_equal(name, "Default") == TRUE) {
 785                 dbus_bool_t enabled;
 786
 787                 dbus_message_iter_get_basic(&value, &enabled);
 788
 789                 if (enabled == TRUE)
 790                         return do_enable(conn, msg, element);
 791                 else
 792                         return do_disable(conn, msg, element);
 793         }
 794
 795         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 796 }
 797
 798 static GDBusMethodTable device_methods[] = {
 799         { "GetProperties", "",      "a{sv}", device_get_properties },
 800         { "SetProperty",   "sv",    "",      device_set_property   },
 801         { "CreateNetwork", "a{sv}", "o",     device_create_network },
 802         { "RemoveNetwork", "o",     "",      device_remove_network },
 803         { "ProposeScan",   "",      "",      do_update             },
 804         { },
 805 };
 806
 807 static GDBusMethodTable network_methods[] = {
 808         { "GetProperties", "",   "a{sv}", network_get_properties },
 809         { "SetProperty",   "sv", "",      network_set_property   },
 810         { "Connect",       "",   "",      do_enable              },
 811         { "Disconnect",    "",   "",      do_disable             },
 812         { },
 813 };
 814
 815 static GDBusMethodTable connection_methods[] = {
 816         { "GetProperties", "",   "a{sv}", connection_get_properties },
 817         { "SetProperty",   "sv", "",      connection_set_property   },
 818         { },
 819 };
 820
 821 static GDBusSignalTable element_signals[] = {
 822         { "PropertyChanged", "sv" },
 823         { },
 824 };
 825
 826 struct append_filter {
 827         enum connman_element_type type;
 828         DBusMessageIter *iter;
 829 };
 830
 831 static gboolean append_path(GNode *node, gpointer user_data)
 832 {
 833         struct connman_element *element = node->data;
 834         struct append_filter *filter = user_data;
 835
 836         DBG("element %p name %s", element, element->name);
 837
 838         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 839                 return FALSE;
 840
 841         if (filter->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 842                                         filter->type != element->type)
 843                 return FALSE;
 844
 845         if (filter->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 846                         element->subtype == CONNMAN_ELEMENT_SUBTYPE_NETWORK)
 847                 return FALSE;
 848
 849         dbus_message_iter_append_basic(filter->iter,
 850                                 DBUS_TYPE_OBJECT_PATH, &element->path);
 851
 852         return FALSE;
 853 }
 854
 855 void __connman_element_list(struct connman_element *element,
 856                                         enum connman_element_type type,
 857                                                         DBusMessageIter *iter)
 858 {
 859         struct append_filter filter = { type, iter };
 860         GNode *node;
 861
 862         DBG("");
 863
 864         if (element != NULL) {
 865                 node = g_node_find(element_root, G_PRE_ORDER,
 866                                                 G_TRAVERSE_ALL, element);
 867                 if (node == NULL)
 868                         return;
 869         } else
 870                 node = element_root;
 871
 872         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 873                                                 append_path, &filter);
 874 }
 875
 876 struct count_data {
 877         enum connman_element_type type;
 878         int count;
 879 };
 880
 881 static gboolean count_element(GNode *node, gpointer user_data)
 882 {
 883         struct connman_element *element = node->data;
 884         struct count_data *data = user_data;
 885
 886         DBG("element %p name %s", element, element->name);
 887
 888         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 889                 return FALSE;
 890
 891         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 892                                         data->type != element->type)
 893                 return FALSE;
 894
 895         data->count++;
 896
 897         return FALSE;
 898 }
 899
 900 int __connman_element_count(struct connman_element *element,
 901                                         enum connman_element_type type)
 902 {
 903         struct count_data data = { type, 0 };
 904         GNode *node;
 905
 906         DBG("");
 907
 908         if (element != NULL) {
 909                 node = g_node_find(element_root, G_PRE_ORDER,
 910                                                 G_TRAVERSE_ALL, element);
 911                 if (node == NULL)
 912                         return 0;
 913         } else
 914                 node = element_root;
 915
 916         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 917                                                 count_element, &data);
 918
 919         return data.count;
 920 }
 921
 922 static gint compare_priority(gconstpointer a, gconstpointer b)
 923 {
 924         const struct connman_driver *driver1 = a;
 925         const struct connman_driver *driver2 = b;
 926
 927         return driver2->priority - driver1->priority;
 928 }
 929
 930 static gboolean match_driver(struct connman_element *element,
 931                                         struct connman_driver *driver)
 932 {
 933         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 934                 return FALSE;
 935
 936         if (element->type != driver->type &&
 937                         driver->type != CONNMAN_ELEMENT_TYPE_UNKNOWN)
 938                 return FALSE;
 939
 940         if (element->subtype == driver->subtype ||
 941                         driver->subtype == CONNMAN_ELEMENT_SUBTYPE_UNKNOWN)
 942                 return TRUE;
 943
 944         return FALSE;
 945 }
 946
 947 static void enable_element(struct connman_element *element)
 948 {
 949         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 950                 return;
 951
 952         if (element->policy != CONNMAN_ELEMENT_POLICY_AUTO)
 953                 return;
 954
 955         if (element->driver && element->driver->enable) {
 956                 if (element->driver->enable(element) == 0) {
 957                         element->enabled = TRUE;
 958                         emit_enabled_signal(connection, element);
 959                 }
 960         }
 961 }
 962
 963 static gboolean probe_driver(GNode *node, gpointer data)
 964 {
 965         struct connman_element *element = node->data;
 966         struct connman_driver *driver = data;
 967
 968         DBG("element %p name %s", element, element->name);
 969
 970         if (!element->driver && match_driver(element, driver) == TRUE) {
 971                 if (driver->probe(element) < 0)
 972                         return FALSE;
 973
 974                 __connman_element_lock(element);
 975                 element->driver = driver;
 976                 __connman_element_unlock(element);
 977
 978                 enable_element(element);
 979         }
 980
 981         return FALSE;
 982 }
 983
 984 void __connman_driver_rescan(struct connman_driver *driver)
 985 {
 986         DBG("driver %p name %s", driver, driver->name);
 987
 988         if (!driver->probe)
 989                 return;
 990
 991         if (element_root != NULL)
 992                 g_node_traverse(element_root, G_PRE_ORDER,
 993                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 994 }
 995
 996 /**
 997  * connman_driver_register:
 998  * @driver: driver definition
 999  *
1000  * Register a new driver
1001  *
1002  * Returns: %0 on success
1003  */
1004 int connman_driver_register(struct connman_driver *driver)
1005 {
1006         DBG("driver %p name %s", driver, driver->name);
1007
1008         if (driver->type == CONNMAN_ELEMENT_TYPE_ROOT)
1009                 return -EINVAL;
1010
1011         if (!driver->probe)
1012                 return -EINVAL;
1013
1014         driver_list = g_slist_insert_sorted(driver_list, driver,
1015                                                         compare_priority);
1016
1017         if (element_root != NULL)
1018                 g_node_traverse(element_root, G_PRE_ORDER,
1019                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
1020
1021         return 0;
1022 }
1023
1024 static void disable_element(struct connman_element *element)
1025 {
1026         if (element->policy != CONNMAN_ELEMENT_POLICY_AUTO)
1027                 return;
1028
1029         if (element->enabled == FALSE)
1030                 return;
1031
1032         if (element->driver && element->driver->disable) {
1033                 if (element->driver->disable(element) == 0) {
1034                         element->enabled = FALSE;
1035                         emit_enabled_signal(connection, element);
1036                 }
1037         }
1038 }
1039
1040 static gboolean remove_driver(GNode *node, gpointer data)
1041 {
1042         struct connman_element *element = node->data;
1043         struct connman_driver *driver = data;
1044
1045         DBG("element %p name %s", element, element->name);
1046
1047         if (element->driver == driver) {
1048                 disable_element(element);
1049
1050                 if (driver->remove)
1051                         driver->remove(element);
1052
1053                 __connman_element_lock(element);
1054                 element->driver = NULL;
1055                 __connman_element_unlock(element);
1056         }
1057
1058         return FALSE;
1059 }
1060
1061 /**
1062  * connman_driver_unregister:
1063  * @driver: driver definition
1064  *
1065  * Remove a previously registered driver
1066  */
1067 void connman_driver_unregister(struct connman_driver *driver)
1068 {
1069         DBG("driver %p name %s", driver, driver->name);
1070
1071         driver_list = g_slist_remove(driver_list, driver);
1072
1073         if (element_root != NULL)
1074                 g_node_traverse(element_root, G_POST_ORDER,
1075                                 G_TRAVERSE_ALL, -1, remove_driver, driver);
1076 }
1077
1078 /**
1079  * connman_element_create:
1080  * @name: element name
1081  *
1082  * Allocate a new element and assign the given #name to it. If the name
1083  * is #NULL, it will be later on created based on the element type.
1084  *
1085  * Returns: a newly-allocated #connman_element structure
1086  */
1087 struct connman_element *connman_element_create(const char *name)
1088 {
1089         struct connman_element *element;
1090
1091         element = g_try_new0(struct connman_element, 1);
1092         if (element == NULL)
1093                 return NULL;
1094
1095         DBG("element %p", element);
1096
1097         element->refcount = 1;
1098
1099         element->name    = g_strdup(name);
1100         element->type    = CONNMAN_ELEMENT_TYPE_UNKNOWN;
1101         element->subtype = CONNMAN_ELEMENT_SUBTYPE_UNKNOWN;
1102         element->state   = CONNMAN_ELEMENT_STATE_CLOSED;
1103         element->policy  = CONNMAN_ELEMENT_POLICY_AUTO;
1104         element->index   = -1;
1105         element->enabled = FALSE;
1106
1107         return element;
1108 }
1109
1110 struct connman_element *connman_element_ref(struct connman_element *element)
1111 {
1112         DBG("element %p name %s refcount %d", element, element->name,
1113                                 g_atomic_int_get(&element->refcount) + 1);
1114
1115         g_atomic_int_inc(&element->refcount);
1116
1117         return element;
1118 }
1119
1120 static void free_properties(struct connman_element *element)
1121 {
1122         GSList *list;
1123
1124         DBG("element %p name %s", element, element->name);
1125
1126         __connman_element_lock(element);
1127
1128         for (list = element->properties; list; list = list->next) {
1129                 struct connman_property *property = list->data;
1130
1131                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1132                         g_free(property->value);
1133
1134                 g_free(property->name);
1135                 g_free(property);
1136         }
1137
1138         g_slist_free(element->properties);
1139
1140         element->properties = NULL;
1141
1142         __connman_element_unlock(element);
1143 }
1144
1145 void connman_element_unref(struct connman_element *element)
1146 {
1147         DBG("element %p name %s refcount %d", element, element->name,
1148                                 g_atomic_int_get(&element->refcount) - 1);
1149
1150         if (g_atomic_int_dec_and_test(&element->refcount) == TRUE) {
1151                 free_properties(element);
1152                 g_free(element->ipv4.address);
1153                 g_free(element->ipv4.netmask);
1154                 g_free(element->ipv4.gateway);
1155                 g_free(element->ipv4.network);
1156                 g_free(element->ipv4.broadcast);
1157                 g_free(element->ipv4.nameserver);
1158                 g_free(element->devname);
1159                 g_free(element->path);
1160                 g_free(element->name);
1161                 g_free(element);
1162         }
1163 }
1164
1165 int connman_element_add_static_property(struct connman_element *element,
1166                                 const char *name, int type, const void *value)
1167 {
1168         struct connman_property *property;
1169
1170         DBG("element %p name %s", element, element->name);
1171
1172         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
1173                 return -EINVAL;
1174
1175         property = g_try_new0(struct connman_property, 1);
1176         if (property == NULL)
1177                 return -ENOMEM;
1178
1179         property->flags = CONNMAN_PROPERTY_FLAG_STATIC;
1180         property->id    = CONNMAN_PROPERTY_ID_INVALID;
1181         property->name  = g_strdup(name);
1182         property->type  = type;
1183
1184         DBG("name %s type %d value %p", name, type, value);
1185
1186         switch (type) {
1187         case DBUS_TYPE_STRING:
1188                 property->value = g_strdup(*((const char **) value));
1189                 break;
1190         case DBUS_TYPE_BYTE:
1191                 property->value = g_try_malloc(1);
1192                 if (property->value != NULL)
1193                         memcpy(property->value, value, 1);
1194                 break;
1195         }
1196
1197         __connman_element_lock(element);
1198         element->properties = g_slist_append(element->properties, property);
1199         __connman_element_unlock(element);
1200
1201         return 0;
1202 }
1203
1204 static void emit_property_changed(DBusConnection *conn,
1205                                 struct connman_element *element,
1206                                 const char *name, int type, const void *data)
1207 {
1208         DBusMessage *signal;
1209         DBusMessageIter entry, value;
1210         const char *iface, *sig;
1211
1212         DBG("conn %p", conn);
1213
1214         switch (element->type) {
1215         case CONNMAN_ELEMENT_TYPE_DEVICE:
1216                 iface = CONNMAN_DEVICE_INTERFACE;
1217                 break;
1218         case CONNMAN_ELEMENT_TYPE_NETWORK:
1219                 iface = CONNMAN_NETWORK_INTERFACE;
1220                 break;
1221         case CONNMAN_ELEMENT_TYPE_CONNECTION:
1222                 iface = CONNMAN_CONNECTION_INTERFACE;
1223                 break;
1224         default:
1225                 return;
1226         }
1227
1228         signal = dbus_message_new_signal(element->path,
1229                                                 iface, "PropertyChanged");
1230         if (signal == NULL)
1231                 return;
1232
1233         dbus_message_iter_init_append(signal, &entry);
1234
1235         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &name);
1236
1237         switch (type) {
1238         case DBUS_TYPE_STRING:
1239                 sig = DBUS_TYPE_STRING_AS_STRING;
1240                 break;
1241         case DBUS_TYPE_BYTE:
1242                 sig = DBUS_TYPE_BYTE_AS_STRING;
1243                 break;
1244         default:
1245                 sig = DBUS_TYPE_VARIANT_AS_STRING;
1246                 break;
1247         }
1248
1249         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
1250                                                         sig, &value);
1251         dbus_message_iter_append_basic(&value, type, data);
1252         dbus_message_iter_close_container(&entry, &value);
1253
1254         g_dbus_send_message(conn, signal);
1255 }
1256
1257 int connman_element_set_static_property(struct connman_element *element,
1258                                 const char *name, int type, const void *value)
1259 {
1260         GSList *list;
1261
1262         DBG("element %p name %s", element, element->name);
1263
1264         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
1265                 return -EINVAL;
1266
1267         __connman_element_lock(element);
1268
1269         for (list = element->properties; list; list = list->next) {
1270                 struct connman_property *property = list->data;
1271
1272                 if (g_str_equal(property->name, name) == FALSE)
1273                         continue;
1274
1275                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1276                         continue;
1277
1278                 property->type = type;
1279                 g_free(property->value);
1280
1281                 switch (type) {
1282                 case DBUS_TYPE_STRING:
1283                         property->value = g_strdup(*((const char **) value));
1284                         break;
1285                 case DBUS_TYPE_BYTE:
1286                         property->value = g_try_malloc(1);
1287                         if (property->value != NULL)
1288                                 memcpy(property->value, value, 1);
1289                         break;
1290                 }
1291         }
1292
1293         __connman_element_unlock(element);
1294
1295         emit_property_changed(connection, element, name, type, value);
1296
1297         return 0;
1298 }
1299
1300 int connman_element_add_static_array_property(struct connman_element *element,
1301                         const char *name, int type, const void *value, int len)
1302 {
1303         struct connman_property *property;
1304
1305         DBG("element %p name %s", element, element->name);
1306
1307         if (type != DBUS_TYPE_BYTE)
1308                 return -EINVAL;
1309
1310         property = g_try_new0(struct connman_property, 1);
1311         if (property == NULL)
1312                 return -ENOMEM;
1313
1314         property->flags   = CONNMAN_PROPERTY_FLAG_STATIC;
1315         property->id      = CONNMAN_PROPERTY_ID_INVALID;
1316         property->name    = g_strdup(name);
1317         property->type    = DBUS_TYPE_ARRAY;
1318         property->subtype = type;
1319
1320         DBG("name %s type %d value %p", name, type, value);
1321
1322         switch (type) {
1323         case DBUS_TYPE_BYTE:
1324                 property->value = g_try_malloc(len);
1325                 if (property->value != NULL) {
1326                         memcpy(property->value,
1327                                 *((const unsigned char **) value), len);
1328                         property->size = len;
1329                 }
1330                 break;
1331         }
1332
1333         __connman_element_lock(element);
1334         element->properties = g_slist_append(element->properties, property);
1335         __connman_element_unlock(element);
1336
1337         return 0;
1338 }
1339
1340 static void *get_reference_value(struct connman_element *element,
1341                                                 enum connman_property_id id)
1342 {
1343         GSList *list;
1344
1345         DBG("element %p name %s", element, element->name);
1346
1347         for (list = element->properties; list; list = list->next) {
1348                 struct connman_property *property = list->data;
1349
1350                 if (property->id != id)
1351                         continue;
1352
1353                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1354                         return property->value;
1355         }
1356
1357         if (element->parent == NULL)
1358                 return NULL;
1359
1360         return get_reference_value(element->parent, id);
1361 }
1362
1363 static void set_reference_properties(struct connman_element *element)
1364 {
1365         GSList *list;
1366
1367         DBG("element %p name %s", element, element->name);
1368
1369         for (list = element->properties; list; list = list->next) {
1370                 struct connman_property *property = list->data;
1371
1372                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1373                         continue;
1374
1375                 property->value = get_reference_value(element->parent,
1376                                                                 property->id);
1377         }
1378 }
1379
1380 static struct connman_property *create_property(struct connman_element *element,
1381                                                 enum connman_property_id id)
1382 {
1383         struct connman_property *property;
1384         GSList *list;
1385
1386         DBG("element %p name %s", element, element->name);
1387
1388         __connman_element_lock(element);
1389
1390         for (list = element->properties; list; list = list->next) {
1391                 property = list->data;
1392
1393                 if (property->id == id)
1394                         goto unlock;
1395         }
1396
1397         property = g_try_new0(struct connman_property, 1);
1398         if (property == NULL)
1399                 goto unlock;
1400
1401         property->flags = CONNMAN_PROPERTY_FLAG_REFERENCE;
1402         property->id    = id;
1403         property->name  = g_strdup(propid2name(id));
1404         property->type  = propid2type(id);
1405
1406         if (property->name == NULL) {
1407                 g_free(property);
1408                 property = NULL;
1409                 goto unlock;
1410         }
1411
1412         element->properties = g_slist_append(element->properties, property);
1413
1414 unlock:
1415         __connman_element_unlock(element);
1416
1417         return property;
1418 }
1419
1420 static void create_default_properties(struct connman_element *element)
1421 {
1422         struct connman_property *property;
1423         int i;
1424
1425         DBG("element %p name %s", element, element->name);
1426
1427         for (i = 0; propid_table[i].name; i++) {
1428                 DBG("property %s", propid_table[i].name);
1429
1430                 property = create_property(element, propid_table[i].id);
1431
1432                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
1433
1434                 if (propid_table[i].type != DBUS_TYPE_STRING)
1435                         continue;
1436
1437                 if (propid_table[i].value)
1438                         property->value = g_strdup(propid_table[i].value);
1439                 else
1440                         property->value = g_strdup("");
1441         }
1442 }
1443
1444 static int define_properties_valist(struct connman_element *element,
1445                                                                 va_list args)
1446 {
1447         enum connman_property_id id;
1448
1449         DBG("element %p name %s", element, element->name);
1450
1451         id = va_arg(args, enum connman_property_id);
1452
1453         while (id != CONNMAN_PROPERTY_ID_INVALID) {
1454
1455                 DBG("property %d", id);
1456
1457                 create_property(element, id);
1458
1459                 id = va_arg(args, enum connman_property_id);
1460         }
1461
1462         return 0;
1463 }
1464
1465 /**
1466  * connman_element_define_properties:
1467  * @element: an element
1468  * @varargs: list of property identifiers
1469  *
1470  * Define the valid properties for an element.
1471  *
1472  * Returns: %0 on success
1473  */
1474 int connman_element_define_properties(struct connman_element *element, ...)
1475 {
1476         va_list args;
1477         int err;
1478
1479         DBG("element %p name %s", element, element->name);
1480
1481         va_start(args, element);
1482
1483         err = define_properties_valist(element, args);
1484
1485         va_end(args);
1486
1487         return err;
1488 }
1489
1490 int connman_element_create_property(struct connman_element *element,
1491                                                 const char *name, int type)
1492 {
1493         return -EIO;
1494 }
1495
1496 int connman_element_set_property(struct connman_element *element,
1497                                 enum connman_property_id id, const void *value)
1498 {
1499         switch (id) {
1500         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1501                 __connman_element_lock(element);
1502                 g_free(element->ipv4.address);
1503                 element->ipv4.address = g_strdup(*((const char **) value));
1504                 __connman_element_unlock(element);
1505                 break;
1506         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1507                 __connman_element_lock(element);
1508                 g_free(element->ipv4.netmask);
1509                 element->ipv4.netmask = g_strdup(*((const char **) value));
1510                 __connman_element_unlock(element);
1511                 break;
1512         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1513                 __connman_element_lock(element);
1514                 g_free(element->ipv4.gateway);
1515                 element->ipv4.gateway = g_strdup(*((const char **) value));
1516                 __connman_element_unlock(element);
1517                 break;
1518         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
1519                 __connman_element_lock(element);
1520                 g_free(element->ipv4.broadcast);
1521                 element->ipv4.broadcast = g_strdup(*((const char **) value));
1522                 __connman_element_unlock(element);
1523                 break;
1524         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1525                 __connman_element_lock(element);
1526                 g_free(element->ipv4.nameserver);
1527                 element->ipv4.nameserver = g_strdup(*((const char **) value));
1528                 __connman_element_unlock(element);
1529                 break;
1530         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1531                 __connman_element_lock(element);
1532                 g_free(element->wifi.security);
1533                 element->wifi.security = g_strdup(*((const char **) value));
1534                 __connman_element_unlock(element);
1535                 break;
1536         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1537                 __connman_element_lock(element);
1538                 g_free(element->wifi.passphrase);
1539                 element->wifi.passphrase = g_strdup(*((const char **) value));
1540                 __connman_element_unlock(element);
1541                 break;
1542         default:
1543                 return -EINVAL;
1544         }
1545
1546         return 0;
1547 }
1548
1549 int connman_element_get_value(struct connman_element *element,
1550                                 enum connman_property_id id, void *value)
1551 {
1552         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1553                 return -EINVAL;
1554
1555         switch (id) {
1556         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1557                 if (element->ipv4.address == NULL)
1558                         return connman_element_get_value(element->parent,
1559                                                                 id, value);
1560                 __connman_element_lock(element);
1561                 *((char **) value) = element->ipv4.address;
1562                 __connman_element_unlock(element);
1563                 break;
1564         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1565                 if (element->ipv4.netmask == NULL)
1566                         return connman_element_get_value(element->parent,
1567                                                                 id, value);
1568                 __connman_element_lock(element);
1569                 *((char **) value) = element->ipv4.netmask;
1570                 __connman_element_unlock(element);
1571                 break;
1572         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1573                 if (element->ipv4.gateway == NULL)
1574                         return connman_element_get_value(element->parent,
1575                                                                 id, value);
1576                 __connman_element_lock(element);
1577                 *((char **) value) = element->ipv4.gateway;
1578                 __connman_element_unlock(element);
1579                 break;
1580         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
1581                 if (element->ipv4.broadcast == NULL)
1582                         return connman_element_get_value(element->parent,
1583                                                                 id, value);
1584                 __connman_element_lock(element);
1585                 *((char **) value) = element->ipv4.broadcast;
1586                 __connman_element_unlock(element);
1587                 break;
1588         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1589                 if (element->ipv4.nameserver == NULL)
1590                         return connman_element_get_value(element->parent,
1591                                                                 id, value);
1592                 __connman_element_lock(element);
1593                 *((char **) value) = element->ipv4.nameserver;
1594                 __connman_element_unlock(element);
1595                 break;
1596         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1597                 if (element->wifi.security == NULL)
1598                         return connman_element_get_value(element->parent,
1599                                                                 id, value);
1600                 __connman_element_lock(element);
1601                 *((char **) value) = element->wifi.security;
1602                 __connman_element_unlock(element);
1603                 break;
1604         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1605                 if (element->wifi.passphrase == NULL)
1606                         return connman_element_get_value(element->parent,
1607                                                                 id, value);
1608                 __connman_element_lock(element);
1609                 *((char **) value) = element->wifi.passphrase;
1610                 __connman_element_unlock(element);
1611                 break;
1612         default:
1613                 return -EINVAL;
1614         }
1615
1616         return 0;
1617 }
1618
1619 gboolean connman_element_get_static_property(struct connman_element *element,
1620                                                 const char *name, void *value)
1621 {
1622         GSList *list;
1623         gboolean found = FALSE;
1624
1625         DBG("element %p name %s", element, element->name);
1626
1627         __connman_element_lock(element);
1628
1629         for (list = element->properties; list; list = list->next) {
1630                 struct connman_property *property = list->data;
1631
1632                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1633                         continue;
1634
1635                 if (g_str_equal(property->name, name) == TRUE) {
1636                         switch (property->type) {
1637                         case DBUS_TYPE_STRING:
1638                                 *((char **) value) = property->value;
1639                                 found = TRUE;
1640                                 break;
1641                         }
1642                         break;
1643                 }
1644         }
1645
1646         __connman_element_unlock(element);
1647
1648         return found;
1649 }
1650
1651 gboolean connman_element_get_static_array_property(struct connman_element *element,
1652                                         const char *name, void *value, int *len)
1653 {
1654         GSList *list;
1655         gboolean found = FALSE;
1656
1657         DBG("element %p name %s", element, element->name);
1658
1659         __connman_element_lock(element);
1660
1661         for (list = element->properties; list; list = list->next) {
1662                 struct connman_property *property = list->data;
1663
1664                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1665                         continue;
1666
1667                 if (g_str_equal(property->name, name) == TRUE) {
1668                         *((char **) value) = property->value;
1669                         *len = property->size;
1670                         found = TRUE;
1671                         break;
1672                 }
1673         }
1674
1675         __connman_element_unlock(element);
1676
1677         return found;
1678 }
1679
1680 gboolean connman_element_match_static_property(struct connman_element *element,
1681                                         const char *name, const void *value)
1682 {
1683         GSList *list;
1684         gboolean result = FALSE;
1685
1686         DBG("element %p name %s", element, element->name);
1687
1688         __connman_element_lock(element);
1689
1690         for (list = element->properties; list; list = list->next) {
1691                 struct connman_property *property = list->data;
1692
1693                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1694                         continue;
1695
1696                 if (g_str_equal(property->name, name) == FALSE)
1697                         continue;
1698
1699                 if (property->type == DBUS_TYPE_STRING)
1700                         result = g_str_equal(property->value,
1701                                                 *((const char **) value));
1702
1703                 if (result == TRUE)
1704                         break;
1705         }
1706
1707         __connman_element_unlock(element);
1708
1709         return result;
1710 }
1711
1712 static void append_devices(DBusMessageIter *entry)
1713 {
1714         DBusMessageIter value, iter;
1715         const char *key = "Devices";
1716
1717         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1718
1719         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1720                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1721                                                                 &value);
1722
1723         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1724                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1725         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_DEVICE, &iter);
1726         dbus_message_iter_close_container(&value, &iter);
1727
1728         dbus_message_iter_close_container(entry, &value);
1729 }
1730
1731 static void emit_devices_signal(DBusConnection *conn)
1732 {
1733         DBusMessage *signal;
1734         DBusMessageIter entry;
1735
1736         DBG("conn %p", conn);
1737
1738         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1739                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1740         if (signal == NULL)
1741                 return;
1742
1743         dbus_message_iter_init_append(signal, &entry);
1744
1745         append_devices(&entry);
1746
1747         g_dbus_send_message(conn, signal);
1748 }
1749
1750 static void emit_networks_signal(DBusConnection *conn,
1751                                         struct connman_element *device)
1752 {
1753         DBusMessage *signal;
1754         DBusMessageIter entry;
1755
1756         DBG("conn %p", conn);
1757
1758         if (device == NULL)
1759                 return;
1760
1761         signal = dbus_message_new_signal(device->path,
1762                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
1763         if (signal == NULL)
1764                 return;
1765
1766         dbus_message_iter_init_append(signal, &entry);
1767
1768         append_networks(device, &entry);
1769
1770         g_dbus_send_message(conn, signal);
1771 }
1772
1773 static void append_connections(DBusMessageIter *entry)
1774 {
1775         DBusMessageIter value, iter;
1776         const char *key = "Connections";
1777
1778         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1779
1780         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1781                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1782                                                                 &value);
1783
1784         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1785                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1786         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
1787         dbus_message_iter_close_container(&value, &iter);
1788
1789         dbus_message_iter_close_container(entry, &value);
1790 }
1791
1792 static void emit_connections_signal(DBusConnection *conn)
1793 {
1794         DBusMessage *signal;
1795         DBusMessageIter entry;
1796
1797         DBG("conn %p", conn);
1798
1799         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1800                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1801         if (signal == NULL)
1802                 return;
1803
1804         dbus_message_iter_init_append(signal, &entry);
1805
1806         append_connections(&entry);
1807
1808         g_dbus_send_message(conn, signal);
1809 }
1810
1811 static void append_state(DBusMessageIter *entry, const char *state)
1812 {
1813         DBusMessageIter value;
1814         const char *key = "State";
1815
1816         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1817
1818         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1819                                         DBUS_TYPE_STRING_AS_STRING, &value);
1820         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &state);
1821         dbus_message_iter_close_container(entry, &value);
1822 }
1823
1824 static void emit_state_change(DBusConnection *conn, const char *state)
1825 {
1826         DBusMessage *signal;
1827         DBusMessageIter entry;
1828
1829         DBG("conn %p", conn);
1830
1831         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1832                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1833         if (signal == NULL)
1834                 return;
1835
1836         dbus_message_iter_init_append(signal, &entry);
1837
1838         append_state(&entry, state);
1839
1840         g_dbus_send_message(conn, signal);
1841 }
1842
1843 static void set_signal_strength(struct connman_element *connection)
1844 {
1845         struct connman_element *element = connection;
1846
1847         while (element != NULL) {
1848                 if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1849                         connection->strength = element->strength;
1850                         break;
1851                 }
1852
1853                 element = element->parent;
1854         }
1855 }
1856
1857 static void register_element(gpointer data, gpointer user_data)
1858 {
1859         struct connman_element *element = data;
1860         const gchar *basepath;
1861         GSList *list;
1862         GNode *node;
1863
1864         __connman_element_lock(element);
1865
1866         if (element->parent) {
1867                 node = g_node_find(element_root, G_PRE_ORDER,
1868                                         G_TRAVERSE_ALL, element->parent);
1869                 basepath = element->parent->path;
1870
1871                 if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_UNKNOWN)
1872                         element->subtype = element->parent->subtype;
1873         } else {
1874                 element->parent = element_root->data;
1875
1876                 node = element_root;
1877                 basepath = "";
1878         }
1879
1880         element->path = g_strdup_printf("%s/%s", basepath, element->name);
1881
1882         set_reference_properties(element);
1883
1884         __connman_element_unlock(element);
1885
1886         DBG("element %p path %s", element, element->path);
1887
1888         __connman_element_load(element);
1889
1890         g_node_append_data(node, element);
1891
1892         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1893                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1894                 if (g_dbus_register_interface(connection, element->path,
1895                                         CONNMAN_DEVICE_INTERFACE,
1896                                         device_methods, element_signals,
1897                                         NULL, element, NULL) == FALSE)
1898                         connman_error("Failed to register %s device",
1899                                                                 element->path);
1900                 else
1901                         emit_devices_signal(connection);
1902         }
1903
1904         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1905                 if (g_dbus_register_interface(connection, element->path,
1906                                         CONNMAN_NETWORK_INTERFACE,
1907                                         network_methods, element_signals,
1908                                         NULL, element, NULL) == FALSE)
1909                         connman_error("Failed to register %s network",
1910                                                                 element->path);
1911                 else
1912                         emit_networks_signal(connection, element->parent);
1913         }
1914
1915         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1916                 if (g_dbus_register_interface(connection, element->path,
1917                                         CONNMAN_CONNECTION_INTERFACE,
1918                                         connection_methods, element_signals,
1919                                         NULL, element, NULL) == FALSE)
1920                         connman_error("Failed to register %s connection",
1921                                                                 element->path);
1922                 else {
1923                         set_signal_strength(element);
1924                         emit_connections_signal(connection);
1925                         emit_state_change(connection, "online");
1926                 }
1927         }
1928
1929         __connman_element_store(element);
1930
1931         for (list = driver_list; list; list = list->next) {
1932                 struct connman_driver *driver = list->data;
1933
1934                 if (match_driver(element, driver) == FALSE)
1935                         continue;
1936
1937                 DBG("driver %p name %s", driver, driver->name);
1938
1939                 if (driver->probe(element) == 0) {
1940                         __connman_element_lock(element);
1941                         element->driver = driver;
1942                         __connman_element_unlock(element);
1943
1944                         enable_element(element);
1945                         break;
1946                 }
1947         }
1948 }
1949
1950 /**
1951  * connman_element_register:
1952  * @element: the element to register
1953  * @parent: the parent to register the element with
1954  *
1955  * Register an element with the core. It will be register under the given
1956  * parent of if %NULL is provided under the root element.
1957  *
1958  * Returns: %0 on success
1959  */
1960 int connman_element_register(struct connman_element *element,
1961                                         struct connman_element *parent)
1962 {
1963         DBG("element %p name %s parent %p", element, element->name, parent);
1964
1965         if (element->devname == NULL)
1966                 element->devname = g_strdup(element->name);
1967
1968         if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1969                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1970                 if (g_pattern_match_simple(device_filter,
1971                                                 element->devname) == FALSE) {
1972                         DBG("ignoring %s [%s] device", element->name,
1973                                                         element->devname);
1974                         return -EPERM;
1975                 }
1976         }
1977
1978         if (connman_element_ref(element) == NULL)
1979                 return -EINVAL;
1980
1981         __connman_element_lock(element);
1982
1983         if (element->name == NULL) {
1984                 element->name = g_strdup(type2string(element->type));
1985                 if (element->name == NULL) {
1986                         __connman_element_unlock(element);
1987                         return -EINVAL;
1988                 }
1989         }
1990
1991         element->parent = parent;
1992
1993         __connman_element_unlock(element);
1994
1995         register_element(element, NULL);
1996
1997         return 0;
1998 }
1999
2000 static gboolean remove_element(GNode *node, gpointer user_data)
2001 {
2002         struct connman_element *element = node->data;
2003         struct connman_element *root = user_data;
2004
2005         DBG("element %p name %s", element, element->name);
2006
2007         if (element == root)
2008                 return FALSE;
2009
2010         if (element->driver) {
2011                 disable_element(element);
2012
2013                 if (element->driver->remove)
2014                         element->driver->remove(element);
2015
2016                 __connman_element_lock(element);
2017                 element->driver = NULL;
2018                 __connman_element_unlock(element);
2019         }
2020
2021         if (node != NULL) {
2022                 g_node_unlink(node);
2023                 g_node_destroy(node);
2024         }
2025
2026         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
2027                 if (__connman_element_count(NULL,
2028                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
2029                         emit_state_change(connection, "offline");
2030                 emit_connections_signal(connection);
2031
2032                 g_dbus_unregister_interface(connection, element->path,
2033                                                 CONNMAN_CONNECTION_INTERFACE);
2034         }
2035
2036         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
2037                 emit_networks_signal(connection, element->parent);
2038
2039                 g_dbus_unregister_interface(connection, element->path,
2040                                                 CONNMAN_NETWORK_INTERFACE);
2041         }
2042
2043         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
2044                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
2045                 emit_devices_signal(connection);
2046
2047                 g_dbus_unregister_interface(connection, element->path,
2048                                                 CONNMAN_DEVICE_INTERFACE);
2049         }
2050
2051         connman_element_unref(element);
2052
2053         return FALSE;
2054 }
2055
2056 void connman_element_unregister(struct connman_element *element)
2057 {
2058         GNode *node;
2059
2060         DBG("element %p name %s", element, element->name);
2061
2062         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
2063
2064         if (node != NULL)
2065                 g_node_traverse(node, G_POST_ORDER,
2066                                 G_TRAVERSE_ALL, -1, remove_element, NULL);
2067 }
2068
2069 void connman_element_unregister_children(struct connman_element *element)
2070 {
2071         GNode *node;
2072
2073         DBG("element %p name %s", element, element->name);
2074
2075         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
2076
2077         if (node != NULL)
2078                 g_node_traverse(node, G_POST_ORDER,
2079                                 G_TRAVERSE_ALL, -1, remove_element, element);
2080 }
2081
2082 static gboolean update_element(GNode *node, gpointer user_data)
2083 {
2084         struct connman_element *element = node->data;
2085         struct connman_element *root = user_data;
2086
2087         DBG("element %p name %s", element, element->name);
2088
2089         if (element->driver && element->driver->update)
2090                 element->driver->update(element);
2091
2092         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION &&
2093                                 root->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
2094                 if (element->strength != root->strength) {
2095                         element->strength = root->strength;
2096                         emit_property_changed(connection, element, "Strength",
2097                                         DBUS_TYPE_BYTE, &element->strength);
2098                 }
2099         }
2100
2101         return FALSE;
2102 }
2103
2104 void connman_element_update(struct connman_element *element)
2105 {
2106         GNode *node;
2107
2108         DBG("element %p name %s", element, element->name);
2109
2110         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
2111
2112         if (node != NULL)
2113                 g_node_traverse(node, G_PRE_ORDER,
2114                                 G_TRAVERSE_ALL, -1, update_element, element);
2115 }
2116
2117 int connman_element_set_enabled(struct connman_element *element,
2118                                                         gboolean enabled)
2119 {
2120         if (element->enabled == enabled)
2121                 return 0;
2122
2123         element->enabled = enabled;
2124
2125         emit_enabled_signal(connection, element);
2126
2127         return 0;
2128 }
2129
2130 int __connman_element_init(DBusConnection *conn, const char *device)
2131 {
2132         struct connman_element *element;
2133
2134         DBG("conn %p", conn);
2135
2136         connection = dbus_connection_ref(conn);
2137         if (connection == NULL)
2138                 return -EIO;
2139
2140         device_filter = g_strdup(device);
2141
2142         element = connman_element_create("root");
2143
2144         element->path = g_strdup("/");
2145         element->type = CONNMAN_ELEMENT_TYPE_ROOT;
2146
2147         create_default_properties(element);
2148
2149         element_root = g_node_new(element);
2150
2151         __connman_device_init();
2152
2153         return 0;
2154 }
2155
2156 static gboolean free_driver(GNode *node, gpointer data)
2157 {
2158         struct connman_element *element = node->data;
2159
2160         DBG("element %p name %s", element, element->name);
2161
2162         if (element->driver) {
2163                 disable_element(element);
2164
2165                 if (element->driver->remove)
2166                         element->driver->remove(element);
2167
2168                 __connman_element_lock(element);
2169                 element->driver = NULL;
2170                 __connman_element_unlock(element);
2171         }
2172
2173         return FALSE;
2174 }
2175
2176 static gboolean free_node(GNode *node, gpointer data)
2177 {
2178         struct connman_element *element = node->data;
2179
2180         DBG("element %p name %s", element, element->name);
2181
2182         if (g_node_depth(node) > 1)
2183                 connman_element_unregister(element);
2184
2185         return FALSE;
2186 }
2187
2188 void __connman_element_cleanup(void)
2189 {
2190         DBG("");
2191
2192         __connman_device_cleanup();
2193
2194         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
2195                                                         free_driver, NULL);
2196
2197         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
2198                                                         free_node, NULL);
2199
2200         g_node_destroy(element_root);
2201         element_root = NULL;
2202
2203         g_free(device_filter);
2204
2205         dbus_connection_unref(connection);
2206 }