vcs.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 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_IPV4:
 110                 return "ipv4";
 111         case CONNMAN_ELEMENT_TYPE_IPV6:
 112                 return "ipv6";
 113         case CONNMAN_ELEMENT_TYPE_DHCP:
 114                 return "dhcp";
 115         case CONNMAN_ELEMENT_TYPE_BOOTP:
 116                 return "bootp";
 117         case CONNMAN_ELEMENT_TYPE_ZEROCONF:
 118                 return "zeroconf";
 119         case CONNMAN_ELEMENT_TYPE_CONNECTION:
 120                 return "connection";
 121         }
 122
 123         return NULL;
 124 }
 125
 126 static const char *subtype2string(enum connman_element_subtype type)
 127 {
 128         switch (type) {
 129         case CONNMAN_ELEMENT_SUBTYPE_UNKNOWN:
 130                 return "unknown";
 131         case CONNMAN_ELEMENT_SUBTYPE_FAKE:
 132                 return "fake";
 133         case CONNMAN_ELEMENT_SUBTYPE_NETWORK:
 134                 return "network";
 135         case CONNMAN_ELEMENT_SUBTYPE_ETHERNET:
 136                 return "ethernet";
 137         case CONNMAN_ELEMENT_SUBTYPE_WIFI:
 138                 return "wifi";
 139         case CONNMAN_ELEMENT_SUBTYPE_WIMAX:
 140                 return "wimax";
 141         case CONNMAN_ELEMENT_SUBTYPE_CELLULAR:
 142                 return "cellular";
 143         case CONNMAN_ELEMENT_SUBTYPE_BLUETOOTH:
 144                 return "bluetooth";
 145         }
 146
 147         return NULL;
 148 }
 149
 150 const char *__connman_element_policy2string(enum connman_element_policy policy)
 151 {
 152         switch (policy) {
 153         case CONNMAN_ELEMENT_POLICY_UNKNOWN:
 154                 return "unknown";
 155         case CONNMAN_ELEMENT_POLICY_IGNORE:
 156                 return "ignore";
 157         case CONNMAN_ELEMENT_POLICY_AUTO:
 158                 return "auto";
 159         case CONNMAN_ELEMENT_POLICY_ASK:
 160                 return "ask";
 161         }
 162
 163         return NULL;
 164 }
 165
 166 enum connman_element_policy __connman_element_string2policy(const char *policy)
 167 {
 168         if (strcasecmp(policy, "ignore") == 0)
 169                 return CONNMAN_ELEMENT_POLICY_IGNORE;
 170         else if (strcasecmp(policy, "auto") == 0)
 171                 return CONNMAN_ELEMENT_POLICY_AUTO;
 172         else if (strcasecmp(policy, "ask") == 0)
 173                 return CONNMAN_ELEMENT_POLICY_ASK;
 174         else
 175                 return CONNMAN_ELEMENT_POLICY_UNKNOWN;
 176 }
 177
 178 const char *__connman_ipv4_method2string(enum connman_ipv4_method method)
 179 {
 180         switch (method) {
 181         case CONNMAN_IPV4_METHOD_UNKNOWN:
 182                 return "unknown";
 183         case CONNMAN_IPV4_METHOD_OFF:
 184                 return "off";
 185         case CONNMAN_IPV4_METHOD_STATIC:
 186                 return "static";
 187         case CONNMAN_IPV4_METHOD_DHCP:
 188                 return "dhcp";
 189         }
 190
 191         return "unknown";
 192 }
 193
 194 enum connman_ipv4_method __connman_ipv4_string2method(const char *method)
 195 {
 196         if (strcasecmp(method, "off") == 0)
 197                 return CONNMAN_IPV4_METHOD_OFF;
 198         else if (strcasecmp(method, "static") == 0)
 199                 return CONNMAN_IPV4_METHOD_STATIC;
 200         else if (strcasecmp(method, "dhcp") == 0)
 201                 return CONNMAN_IPV4_METHOD_DHCP;
 202         else
 203                 return CONNMAN_IPV4_METHOD_UNKNOWN;
 204 }
 205
 206 static void append_property(DBusMessageIter *dict,
 207                                 struct connman_property *property)
 208 {
 209         if (property->value == NULL)
 210                 return;
 211
 212         switch (property->type) {
 213         case DBUS_TYPE_ARRAY:
 214                 connman_dbus_dict_append_array(dict, property->name,
 215                         property->subtype, &property->value, property->size);
 216                 break;
 217         case DBUS_TYPE_STRING:
 218                 connman_dbus_dict_append_variant(dict, property->name,
 219                                         property->type, &property->value);
 220                 break;
 221         default:
 222                 connman_dbus_dict_append_variant(dict, property->name,
 223                                         property->type, property->value);
 224                 break;
 225         }
 226 }
 227
 228 static void add_common_properties(struct connman_element *element,
 229                                                 DBusMessageIter *dict)
 230 {
 231         const char *address = NULL, *netmask = NULL, *gateway = NULL;
 232         GSList *list;
 233
 234         connman_element_get_value(element,
 235                                 CONNMAN_PROPERTY_ID_IPV4_ADDRESS, &address);
 236         connman_element_get_value(element,
 237                                 CONNMAN_PROPERTY_ID_IPV4_NETMASK, &netmask);
 238         connman_element_get_value(element,
 239                                 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
 240
 241         if (element->priority > 0)
 242                 connman_dbus_dict_append_variant(dict, "Priority",
 243                                         DBUS_TYPE_UINT16, &element->priority);
 244
 245         if (address != NULL)
 246                 connman_dbus_dict_append_variant(dict, "IPv4.Address",
 247                                                 DBUS_TYPE_STRING, &address);
 248         if (netmask != NULL)
 249                 connman_dbus_dict_append_variant(dict, "IPv4.Netmask",
 250                                                 DBUS_TYPE_STRING, &netmask);
 251         if (gateway != NULL)
 252                 connman_dbus_dict_append_variant(dict, "IPv4.Gateway",
 253                                                 DBUS_TYPE_STRING, &gateway);
 254
 255         if (element->wifi.security != NULL) {
 256                 const char *passphrase = "";
 257
 258                 connman_dbus_dict_append_variant(dict, "WiFi.Security",
 259                                 DBUS_TYPE_STRING, &element->wifi.security);
 260
 261                 if (element->wifi.passphrase != NULL)
 262                         passphrase = element->wifi.passphrase;
 263
 264                 connman_dbus_dict_append_variant(dict, "WiFi.Passphrase",
 265                                 DBUS_TYPE_STRING, &passphrase);
 266         }
 267
 268         __connman_element_lock(element);
 269
 270         for (list = element->properties; list; list = list->next) {
 271                 struct connman_property *property = list->data;
 272
 273                 append_property(dict, property);
 274         }
 275
 276         __connman_element_unlock(element);
 277 }
 278
 279 static void set_common_property(struct connman_element *element,
 280                                 const char *name, DBusMessageIter *value)
 281 {
 282         GSList *list;
 283
 284         if (g_str_equal(name, "Priority") == TRUE) {
 285                 dbus_message_iter_get_basic(value, &element->priority);
 286                 return;
 287         }
 288
 289         __connman_element_lock(element);
 290
 291         for (list = element->properties; list; list = list->next) {
 292                 struct connman_property *property = list->data;
 293                 const char *str;
 294
 295                 if (g_str_equal(property->name, name) == FALSE)
 296                         continue;
 297
 298                 if (property->flags & CONNMAN_PROPERTY_FLAG_STATIC)
 299                         continue;
 300
 301                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
 302
 303                 if (property->type == DBUS_TYPE_STRING) {
 304                         dbus_message_iter_get_basic(value, &str);
 305                         g_free(property->value);
 306                         property->value = g_strdup(str);
 307                 } else
 308                         property->value = NULL;
 309         }
 310
 311         __connman_element_unlock(element);
 312 }
 313
 314 static void emit_enabled_signal(DBusConnection *conn,
 315                                         struct connman_element *element)
 316 {
 317         DBusMessage *signal;
 318         DBusMessageIter entry, value;
 319         const char *iface, *key;
 320
 321         DBG("conn %p", conn);
 322
 323         if (element == NULL)
 324                 return;
 325
 326         switch (element->type) {
 327         case CONNMAN_ELEMENT_TYPE_DEVICE:
 328                 iface = CONNMAN_DEVICE_INTERFACE;
 329                 key = "Powered";
 330                 break;
 331         case CONNMAN_ELEMENT_TYPE_NETWORK:
 332                 iface = CONNMAN_NETWORK_INTERFACE;
 333                 key = "Connected";
 334                 break;
 335         case CONNMAN_ELEMENT_TYPE_CONNECTION:
 336                 iface = CONNMAN_CONNECTION_INTERFACE;
 337                 key = "Default";
 338                 break;
 339         default:
 340                 return;
 341         }
 342
 343         signal = dbus_message_new_signal(element->path,
 344                                                 iface, "PropertyChanged");
 345         if (signal == NULL)
 346                 return;
 347
 348         dbus_message_iter_init_append(signal, &entry);
 349
 350         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 351
 352         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 353                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 354         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN,
 355                                                         &element->enabled);
 356         dbus_message_iter_close_container(&entry, &value);
 357
 358         g_dbus_send_message(conn, signal);
 359 }
 360
 361 static void emit_scanning_signal(DBusConnection *conn,
 362                                         struct connman_element *element)
 363 {
 364         DBusMessage *signal;
 365         DBusMessageIter entry, value;
 366         const char *key = "Scanning";
 367
 368         DBG("conn %p", conn);
 369
 370         if (element == NULL)
 371                 return;
 372
 373         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 374                 return;
 375
 376         signal = dbus_message_new_signal(element->path,
 377                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
 378         if (signal == NULL)
 379                 return;
 380
 381         dbus_message_iter_init_append(signal, &entry);
 382
 383         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 384
 385         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 386                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 387         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN,
 388                                                         &element->scanning);
 389         dbus_message_iter_close_container(&entry, &value);
 390
 391         g_dbus_send_message(conn, signal);
 392 }
 393
 394 static DBusMessage *do_enable(DBusConnection *conn,
 395                                         DBusMessage *msg, void *data)
 396 {
 397         struct connman_element *element = data;
 398
 399         DBG("conn %p", conn);
 400
 401         if (element->enabled == TRUE)
 402                 return __connman_error_failed(msg);
 403
 404         if (element->driver && element->driver->enable) {
 405                 DBG("Calling enable callback");
 406                 if (element->driver->enable(element) < 0)
 407                         return __connman_error_failed(msg);
 408         }
 409
 410         element->enabled = TRUE;
 411
 412         emit_enabled_signal(connection, element);
 413
 414         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 415 }
 416
 417 static DBusMessage *do_disable(DBusConnection *conn,
 418                                         DBusMessage *msg, void *data)
 419 {
 420         struct connman_element *element = data;
 421
 422         DBG("conn %p", conn);
 423
 424         if (element->enabled == FALSE)
 425                 return __connman_error_failed(msg);
 426
 427         if (element->driver && element->driver->disable) {
 428                 DBG("Calling disable callback");
 429                 if (element->driver->disable(element) < 0)
 430                         return __connman_error_failed(msg);
 431         }
 432
 433         element->enabled = FALSE;
 434
 435         emit_enabled_signal(connection, element);
 436
 437         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 438 }
 439
 440 static DBusMessage *network_get_properties(DBusConnection *conn,
 441                                         DBusMessage *msg, void *data)
 442 {
 443         struct connman_element *element = data;
 444         DBusMessage *reply;
 445         DBusMessageIter array, dict;
 446
 447         DBG("conn %p", conn);
 448
 449         reply = dbus_message_new_method_return(msg);
 450         if (reply == NULL)
 451                 return NULL;
 452
 453         dbus_message_iter_init_append(reply, &array);
 454
 455         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 456                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 457                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 458                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 459
 460         if (element->parent)
 461                 connman_dbus_dict_append_variant(&dict, "Device",
 462                                 DBUS_TYPE_OBJECT_PATH, &element->parent->path);
 463
 464         connman_dbus_dict_append_variant(&dict, "Available",
 465                                         DBUS_TYPE_BOOLEAN, &element->available);
 466
 467         connman_dbus_dict_append_variant(&dict, "Connected",
 468                                         DBUS_TYPE_BOOLEAN, &element->enabled);
 469
 470         connman_dbus_dict_append_variant(&dict, "Remember",
 471                                         DBUS_TYPE_BOOLEAN, &element->remember);
 472
 473         add_common_properties(element, &dict);
 474
 475         dbus_message_iter_close_container(&array, &dict);
 476
 477         return reply;
 478 }
 479
 480 static DBusMessage *network_set_property(DBusConnection *conn,
 481                                         DBusMessage *msg, void *data)
 482 {
 483         struct connman_element *element = data;
 484         DBusMessageIter iter;
 485         DBusMessageIter value;
 486         const char *name;
 487
 488         DBG("conn %p", conn);
 489
 490         if (dbus_message_iter_init(msg, &iter) == FALSE)
 491                 return __connman_error_invalid_arguments(msg);
 492
 493         dbus_message_iter_get_basic(&iter, &name);
 494         dbus_message_iter_next(&iter);
 495         dbus_message_iter_recurse(&iter, &value);
 496
 497         if (__connman_security_check_privileges(msg) < 0)
 498                 return __connman_error_permission_denied(msg);
 499
 500         if (g_str_equal(name, "Remember") == TRUE) {
 501                 dbus_message_iter_get_basic(&value, &element->remember);
 502         } else if (g_str_equal(name, "WiFi.Passphrase") == TRUE) {
 503                 const char *str;
 504
 505                 dbus_message_iter_get_basic(&value, &str);
 506                 g_free(element->wifi.passphrase);
 507                 element->wifi.passphrase = g_strdup(str);
 508         } else
 509                 set_common_property(element, name, &value);
 510
 511         __connman_element_store(element);
 512
 513         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 514 }
 515
 516 static DBusMessage *connection_get_properties(DBusConnection *conn,
 517                                         DBusMessage *msg, void *data)
 518 {
 519         struct connman_element *element = data;
 520         DBusMessage *reply;
 521         DBusMessageIter array, dict;
 522         const char *str;
 523
 524         DBG("conn %p", conn);
 525
 526         reply = dbus_message_new_method_return(msg);
 527         if (reply == NULL)
 528                 return NULL;
 529
 530         dbus_message_iter_init_append(reply, &array);
 531
 532         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 533                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 534                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 535                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 536
 537         str = subtype2string(element->subtype);
 538         if (str != NULL)
 539                 connman_dbus_dict_append_variant(&dict, "Type",
 540                                                 DBUS_TYPE_STRING, &str);
 541
 542         if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIFI ||
 543                         element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIMAX)
 544                 connman_dbus_dict_append_variant(&dict, "Strength",
 545                                         DBUS_TYPE_BYTE, &element->strength);
 546
 547         connman_dbus_dict_append_variant(&dict, "Default",
 548                                         DBUS_TYPE_BOOLEAN, &element->enabled);
 549
 550         add_common_properties(element, &dict);
 551
 552         dbus_message_iter_close_container(&array, &dict);
 553
 554         return reply;
 555 }
 556
 557 static DBusMessage *connection_set_property(DBusConnection *conn,
 558                                         DBusMessage *msg, void *data)
 559 {
 560         struct connman_element *element = data;
 561         DBusMessageIter iter, value;
 562         const char *name;
 563
 564         DBG("conn %p", conn);
 565
 566         if (dbus_message_iter_init(msg, &iter) == FALSE)
 567                 return __connman_error_invalid_arguments(msg);
 568
 569         dbus_message_iter_get_basic(&iter, &name);
 570         dbus_message_iter_next(&iter);
 571         dbus_message_iter_recurse(&iter, &value);
 572
 573         if (__connman_security_check_privileges(msg) < 0)
 574                 return __connman_error_permission_denied(msg);
 575
 576         if (g_str_equal(name, "Default") == TRUE) {
 577                 dbus_bool_t enabled;
 578
 579                 dbus_message_iter_get_basic(&value, &enabled);
 580
 581                 if (enabled == TRUE)
 582                         return do_enable(conn, msg, element);
 583                 else
 584                         return do_disable(conn, msg, element);
 585         }
 586
 587         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 588 }
 589
 590 static GDBusMethodTable network_methods[] = {
 591         { "GetProperties", "",   "a{sv}", network_get_properties },
 592         { "SetProperty",   "sv", "",      network_set_property   },
 593         { "Connect",       "",   "",      do_enable              },
 594         { "Disconnect",    "",   "",      do_disable             },
 595         { },
 596 };
 597
 598 static GDBusMethodTable connection_methods[] = {
 599         { "GetProperties", "",   "a{sv}", connection_get_properties },
 600         { "SetProperty",   "sv", "",      connection_set_property   },
 601         { },
 602 };
 603
 604 static GDBusSignalTable element_signals[] = {
 605         { "PropertyChanged", "sv" },
 606         { },
 607 };
 608
 609 struct append_filter {
 610         enum connman_element_type type;
 611         DBusMessageIter *iter;
 612 };
 613
 614 static gboolean append_path(GNode *node, gpointer user_data)
 615 {
 616         struct connman_element *element = node->data;
 617         struct append_filter *filter = user_data;
 618
 619         DBG("element %p name %s", element, element->name);
 620
 621         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 622                 return FALSE;
 623
 624         if (filter->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 625                                         filter->type != element->type)
 626                 return FALSE;
 627
 628         if (filter->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 629                         element->subtype == CONNMAN_ELEMENT_SUBTYPE_NETWORK)
 630                 return FALSE;
 631
 632         dbus_message_iter_append_basic(filter->iter,
 633                                 DBUS_TYPE_OBJECT_PATH, &element->path);
 634
 635         return FALSE;
 636 }
 637
 638 void __connman_element_list(struct connman_element *element,
 639                                         enum connman_element_type type,
 640                                                         DBusMessageIter *iter)
 641 {
 642         struct append_filter filter = { type, iter };
 643         GNode *node;
 644
 645         DBG("");
 646
 647         if (element != NULL) {
 648                 node = g_node_find(element_root, G_PRE_ORDER,
 649                                                 G_TRAVERSE_ALL, element);
 650                 if (node == NULL)
 651                         return;
 652         } else
 653                 node = element_root;
 654
 655         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 656                                                 append_path, &filter);
 657 }
 658
 659 struct count_data {
 660         enum connman_element_type type;
 661         int count;
 662 };
 663
 664 static gboolean count_element(GNode *node, gpointer user_data)
 665 {
 666         struct connman_element *element = node->data;
 667         struct count_data *data = user_data;
 668
 669         DBG("element %p name %s", element, element->name);
 670
 671         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 672                 return FALSE;
 673
 674         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 675                                         data->type != element->type)
 676                 return FALSE;
 677
 678         data->count++;
 679
 680         return FALSE;
 681 }
 682
 683 int __connman_element_count(struct connman_element *element,
 684                                         enum connman_element_type type)
 685 {
 686         struct count_data data = { type, 0 };
 687         GNode *node;
 688
 689         DBG("");
 690
 691         if (element != NULL) {
 692                 node = g_node_find(element_root, G_PRE_ORDER,
 693                                                 G_TRAVERSE_ALL, element);
 694                 if (node == NULL)
 695                         return 0;
 696         } else
 697                 node = element_root;
 698
 699         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 700                                                 count_element, &data);
 701
 702         return data.count;
 703 }
 704
 705 static gint compare_priority(gconstpointer a, gconstpointer b)
 706 {
 707         const struct connman_driver *driver1 = a;
 708         const struct connman_driver *driver2 = b;
 709
 710         return driver2->priority - driver1->priority;
 711 }
 712
 713 static gboolean match_driver(struct connman_element *element,
 714                                         struct connman_driver *driver)
 715 {
 716         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 717                 return FALSE;
 718
 719         if (element->type != driver->type &&
 720                         driver->type != CONNMAN_ELEMENT_TYPE_UNKNOWN)
 721                 return FALSE;
 722
 723         if (element->subtype == driver->subtype ||
 724                         driver->subtype == CONNMAN_ELEMENT_SUBTYPE_UNKNOWN)
 725                 return TRUE;
 726
 727         return FALSE;
 728 }
 729
 730 static void enable_element(struct connman_element *element)
 731 {
 732         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 733                 return;
 734
 735         if (element->policy != CONNMAN_ELEMENT_POLICY_AUTO)
 736                 return;
 737
 738         if (element->driver && element->driver->enable) {
 739                 if (element->driver->enable(element) == 0) {
 740                         element->enabled = TRUE;
 741                         emit_enabled_signal(connection, element);
 742                 }
 743         }
 744 }
 745
 746 static gboolean probe_driver(GNode *node, gpointer data)
 747 {
 748         struct connman_element *element = node->data;
 749         struct connman_driver *driver = data;
 750
 751         DBG("element %p name %s", element, element->name);
 752
 753         if (!element->driver && match_driver(element, driver) == TRUE) {
 754                 if (driver->probe(element) < 0)
 755                         return FALSE;
 756
 757                 __connman_element_lock(element);
 758                 element->driver = driver;
 759                 __connman_element_unlock(element);
 760
 761                 enable_element(element);
 762         }
 763
 764         return FALSE;
 765 }
 766
 767 void __connman_driver_rescan(struct connman_driver *driver)
 768 {
 769         DBG("driver %p name %s", driver, driver->name);
 770
 771         if (!driver->probe)
 772                 return;
 773
 774         if (element_root != NULL)
 775                 g_node_traverse(element_root, G_PRE_ORDER,
 776                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 777 }
 778
 779 /**
 780  * connman_driver_register:
 781  * @driver: driver definition
 782  *
 783  * Register a new driver
 784  *
 785  * Returns: %0 on success
 786  */
 787 int connman_driver_register(struct connman_driver *driver)
 788 {
 789         DBG("driver %p name %s", driver, driver->name);
 790
 791         if (driver->type == CONNMAN_ELEMENT_TYPE_ROOT)
 792                 return -EINVAL;
 793
 794         if (!driver->probe)
 795                 return -EINVAL;
 796
 797         driver_list = g_slist_insert_sorted(driver_list, driver,
 798                                                         compare_priority);
 799
 800         if (started == FALSE)
 801                 return 0;
 802
 803         if (element_root != NULL)
 804                 g_node_traverse(element_root, G_PRE_ORDER,
 805                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 806
 807         return 0;
 808 }
 809
 810 static void disable_element(struct connman_element *element)
 811 {
 812         if (element->policy != CONNMAN_ELEMENT_POLICY_AUTO)
 813                 return;
 814
 815         if (element->enabled == FALSE)
 816                 return;
 817
 818         if (element->driver && element->driver->disable) {
 819                 if (element->driver->disable(element) == 0) {
 820                         element->enabled = FALSE;
 821                         emit_enabled_signal(connection, element);
 822                 }
 823         }
 824 }
 825
 826 static gboolean remove_driver(GNode *node, gpointer data)
 827 {
 828         struct connman_element *element = node->data;
 829         struct connman_driver *driver = data;
 830
 831         DBG("element %p name %s", element, element->name);
 832
 833         if (element->driver == driver) {
 834                 disable_element(element);
 835
 836                 if (driver->remove)
 837                         driver->remove(element);
 838
 839                 __connman_element_lock(element);
 840                 element->driver = NULL;
 841                 __connman_element_unlock(element);
 842         }
 843
 844         return FALSE;
 845 }
 846
 847 /**
 848  * connman_driver_unregister:
 849  * @driver: driver definition
 850  *
 851  * Remove a previously registered driver
 852  */
 853 void connman_driver_unregister(struct connman_driver *driver)
 854 {
 855         DBG("driver %p name %s", driver, driver->name);
 856
 857         driver_list = g_slist_remove(driver_list, driver);
 858
 859         if (element_root != NULL)
 860                 g_node_traverse(element_root, G_POST_ORDER,
 861                                 G_TRAVERSE_ALL, -1, remove_driver, driver);
 862 }
 863
 864 /**
 865  * connman_element_create:
 866  * @name: element name
 867  *
 868  * Allocate a new element and assign the given #name to it. If the name
 869  * is #NULL, it will be later on created based on the element type.
 870  *
 871  * Returns: a newly-allocated #connman_element structure
 872  */
 873 struct connman_element *connman_element_create(const char *name)
 874 {
 875         struct connman_element *element;
 876
 877         element = g_try_new0(struct connman_element, 1);
 878         if (element == NULL)
 879                 return NULL;
 880
 881         DBG("element %p", element);
 882
 883         element->refcount = 1;
 884
 885         element->name    = g_strdup(name);
 886         element->type    = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 887         element->subtype = CONNMAN_ELEMENT_SUBTYPE_UNKNOWN;
 888         element->state   = CONNMAN_ELEMENT_STATE_CLOSED;
 889         element->policy  = CONNMAN_ELEMENT_POLICY_AUTO;
 890         element->index   = -1;
 891         element->enabled = FALSE;
 892
 893         return element;
 894 }
 895
 896 struct connman_element *connman_element_ref(struct connman_element *element)
 897 {
 898         DBG("element %p name %s refcount %d", element, element->name,
 899                                 g_atomic_int_get(&element->refcount) + 1);
 900
 901         g_atomic_int_inc(&element->refcount);
 902
 903         return element;
 904 }
 905
 906 static void free_properties(struct connman_element *element)
 907 {
 908         GSList *list;
 909
 910         DBG("element %p name %s", element, element->name);
 911
 912         __connman_element_lock(element);
 913
 914         for (list = element->properties; list; list = list->next) {
 915                 struct connman_property *property = list->data;
 916
 917                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
 918                         g_free(property->value);
 919
 920                 g_free(property->name);
 921                 g_free(property);
 922         }
 923
 924         g_slist_free(element->properties);
 925
 926         element->properties = NULL;
 927
 928         __connman_element_unlock(element);
 929 }
 930
 931 void connman_element_unref(struct connman_element *element)
 932 {
 933         DBG("element %p name %s refcount %d", element, element->name,
 934                                 g_atomic_int_get(&element->refcount) - 1);
 935
 936         if (g_atomic_int_dec_and_test(&element->refcount) == TRUE) {
 937                 if (element->destruct)
 938                         element->destruct(element);
 939                 free_properties(element);
 940                 g_free(element->ipv4.address);
 941                 g_free(element->ipv4.netmask);
 942                 g_free(element->ipv4.gateway);
 943                 g_free(element->ipv4.network);
 944                 g_free(element->ipv4.broadcast);
 945                 g_free(element->ipv4.nameserver);
 946                 g_free(element->devname);
 947                 g_free(element->devpath);
 948                 g_free(element->path);
 949                 g_free(element->name);
 950                 g_free(element);
 951         }
 952 }
 953
 954 int connman_element_add_static_property(struct connman_element *element,
 955                                 const char *name, int type, const void *value)
 956 {
 957         struct connman_property *property;
 958
 959         DBG("element %p name %s", element, element->name);
 960
 961         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
 962                 return -EINVAL;
 963
 964         property = g_try_new0(struct connman_property, 1);
 965         if (property == NULL)
 966                 return -ENOMEM;
 967
 968         property->flags = CONNMAN_PROPERTY_FLAG_STATIC;
 969         property->id    = CONNMAN_PROPERTY_ID_INVALID;
 970         property->name  = g_strdup(name);
 971         property->type  = type;
 972
 973         DBG("name %s type %d value %p", name, type, value);
 974
 975         switch (type) {
 976         case DBUS_TYPE_STRING:
 977                 property->value = g_strdup(*((const char **) value));
 978                 break;
 979         case DBUS_TYPE_BYTE:
 980                 property->value = g_try_malloc(1);
 981                 if (property->value != NULL)
 982                         memcpy(property->value, value, 1);
 983                 break;
 984         }
 985
 986         __connman_element_lock(element);
 987         element->properties = g_slist_append(element->properties, property);
 988         __connman_element_unlock(element);
 989
 990         return 0;
 991 }
 992
 993 static void emit_property_changed(DBusConnection *conn,
 994                                 struct connman_element *element,
 995                                 const char *name, int type, const void *data)
 996 {
 997         DBusMessage *signal;
 998         DBusMessageIter entry, value;
 999         const char *iface, *sig;
1000
1001         DBG("conn %p", conn);
1002
1003         switch (element->type) {
1004         case CONNMAN_ELEMENT_TYPE_DEVICE:
1005                 iface = CONNMAN_DEVICE_INTERFACE;
1006                 break;
1007         case CONNMAN_ELEMENT_TYPE_NETWORK:
1008                 iface = CONNMAN_NETWORK_INTERFACE;
1009                 break;
1010         case CONNMAN_ELEMENT_TYPE_CONNECTION:
1011                 iface = CONNMAN_CONNECTION_INTERFACE;
1012                 break;
1013         default:
1014                 return;
1015         }
1016
1017         signal = dbus_message_new_signal(element->path,
1018                                                 iface, "PropertyChanged");
1019         if (signal == NULL)
1020                 return;
1021
1022         dbus_message_iter_init_append(signal, &entry);
1023
1024         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &name);
1025
1026         switch (type) {
1027         case DBUS_TYPE_STRING:
1028                 sig = DBUS_TYPE_STRING_AS_STRING;
1029                 break;
1030         case DBUS_TYPE_BYTE:
1031                 sig = DBUS_TYPE_BYTE_AS_STRING;
1032                 break;
1033         default:
1034                 sig = DBUS_TYPE_VARIANT_AS_STRING;
1035                 break;
1036         }
1037
1038         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
1039                                                         sig, &value);
1040         dbus_message_iter_append_basic(&value, type, data);
1041         dbus_message_iter_close_container(&entry, &value);
1042
1043         g_dbus_send_message(conn, signal);
1044 }
1045
1046 int connman_element_set_static_property(struct connman_element *element,
1047                                 const char *name, int type, const void *value)
1048 {
1049         GSList *list;
1050
1051         DBG("element %p name %s", element, element->name);
1052
1053         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
1054                 return -EINVAL;
1055
1056         __connman_element_lock(element);
1057
1058         for (list = element->properties; list; list = list->next) {
1059                 struct connman_property *property = list->data;
1060
1061                 if (g_str_equal(property->name, name) == FALSE)
1062                         continue;
1063
1064                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1065                         continue;
1066
1067                 property->type = type;
1068                 g_free(property->value);
1069
1070                 switch (type) {
1071                 case DBUS_TYPE_STRING:
1072                         property->value = g_strdup(*((const char **) value));
1073                         break;
1074                 case DBUS_TYPE_BYTE:
1075                         property->value = g_try_malloc(1);
1076                         if (property->value != NULL)
1077                                 memcpy(property->value, value, 1);
1078                         break;
1079                 }
1080         }
1081
1082         __connman_element_unlock(element);
1083
1084         emit_property_changed(connection, element, name, type, value);
1085
1086         return 0;
1087 }
1088
1089 int connman_element_add_static_array_property(struct connman_element *element,
1090                         const char *name, int type, const void *value, int len)
1091 {
1092         struct connman_property *property;
1093
1094         DBG("element %p name %s", element, element->name);
1095
1096         if (type != DBUS_TYPE_BYTE)
1097                 return -EINVAL;
1098
1099         property = g_try_new0(struct connman_property, 1);
1100         if (property == NULL)
1101                 return -ENOMEM;
1102
1103         property->flags   = CONNMAN_PROPERTY_FLAG_STATIC;
1104         property->id      = CONNMAN_PROPERTY_ID_INVALID;
1105         property->name    = g_strdup(name);
1106         property->type    = DBUS_TYPE_ARRAY;
1107         property->subtype = type;
1108
1109         DBG("name %s type %d value %p", name, type, value);
1110
1111         switch (type) {
1112         case DBUS_TYPE_BYTE:
1113                 property->value = g_try_malloc(len);
1114                 if (property->value != NULL) {
1115                         memcpy(property->value,
1116                                 *((const unsigned char **) value), len);
1117                         property->size = len;
1118                 }
1119                 break;
1120         }
1121
1122         __connman_element_lock(element);
1123         element->properties = g_slist_append(element->properties, property);
1124         __connman_element_unlock(element);
1125
1126         return 0;
1127 }
1128
1129 static void *get_reference_value(struct connman_element *element,
1130                                                 enum connman_property_id id)
1131 {
1132         GSList *list;
1133
1134         DBG("element %p name %s", element, element->name);
1135
1136         for (list = element->properties; list; list = list->next) {
1137                 struct connman_property *property = list->data;
1138
1139                 if (property->id != id)
1140                         continue;
1141
1142                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1143                         return property->value;
1144         }
1145
1146         if (element->parent == NULL)
1147                 return NULL;
1148
1149         return get_reference_value(element->parent, id);
1150 }
1151
1152 static void set_reference_properties(struct connman_element *element)
1153 {
1154         GSList *list;
1155
1156         DBG("element %p name %s", element, element->name);
1157
1158         for (list = element->properties; list; list = list->next) {
1159                 struct connman_property *property = list->data;
1160
1161                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1162                         continue;
1163
1164                 property->value = get_reference_value(element->parent,
1165                                                                 property->id);
1166         }
1167 }
1168
1169 static struct connman_property *create_property(struct connman_element *element,
1170                                                 enum connman_property_id id)
1171 {
1172         struct connman_property *property;
1173         GSList *list;
1174
1175         DBG("element %p name %s", element, element->name);
1176
1177         __connman_element_lock(element);
1178
1179         for (list = element->properties; list; list = list->next) {
1180                 property = list->data;
1181
1182                 if (property->id == id)
1183                         goto unlock;
1184         }
1185
1186         property = g_try_new0(struct connman_property, 1);
1187         if (property == NULL)
1188                 goto unlock;
1189
1190         property->flags = CONNMAN_PROPERTY_FLAG_REFERENCE;
1191         property->id    = id;
1192         property->name  = g_strdup(propid2name(id));
1193         property->type  = propid2type(id);
1194
1195         if (property->name == NULL) {
1196                 g_free(property);
1197                 property = NULL;
1198                 goto unlock;
1199         }
1200
1201         element->properties = g_slist_append(element->properties, property);
1202
1203 unlock:
1204         __connman_element_unlock(element);
1205
1206         return property;
1207 }
1208
1209 static void create_default_properties(struct connman_element *element)
1210 {
1211         struct connman_property *property;
1212         int i;
1213
1214         DBG("element %p name %s", element, element->name);
1215
1216         for (i = 0; propid_table[i].name; i++) {
1217                 DBG("property %s", propid_table[i].name);
1218
1219                 property = create_property(element, propid_table[i].id);
1220
1221                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
1222
1223                 if (propid_table[i].type != DBUS_TYPE_STRING)
1224                         continue;
1225
1226                 if (propid_table[i].value)
1227                         property->value = g_strdup(propid_table[i].value);
1228                 else
1229                         property->value = g_strdup("");
1230         }
1231 }
1232
1233 static int define_properties_valist(struct connman_element *element,
1234                                                                 va_list args)
1235 {
1236         enum connman_property_id id;
1237
1238         DBG("element %p name %s", element, element->name);
1239
1240         id = va_arg(args, enum connman_property_id);
1241
1242         while (id != CONNMAN_PROPERTY_ID_INVALID) {
1243
1244                 DBG("property %d", id);
1245
1246                 create_property(element, id);
1247
1248                 id = va_arg(args, enum connman_property_id);
1249         }
1250
1251         return 0;
1252 }
1253
1254 /**
1255  * connman_element_define_properties:
1256  * @element: an element
1257  * @varargs: list of property identifiers
1258  *
1259  * Define the valid properties for an element.
1260  *
1261  * Returns: %0 on success
1262  */
1263 int connman_element_define_properties(struct connman_element *element, ...)
1264 {
1265         va_list args;
1266         int err;
1267
1268         DBG("element %p name %s", element, element->name);
1269
1270         va_start(args, element);
1271
1272         err = define_properties_valist(element, args);
1273
1274         va_end(args);
1275
1276         return err;
1277 }
1278
1279 int connman_element_create_property(struct connman_element *element,
1280                                                 const char *name, int type)
1281 {
1282         return -EIO;
1283 }
1284
1285 int connman_element_set_property(struct connman_element *element,
1286                                 enum connman_property_id id, const void *value)
1287 {
1288         switch (id) {
1289         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1290                 __connman_element_lock(element);
1291                 g_free(element->ipv4.address);
1292                 element->ipv4.address = g_strdup(*((const char **) value));
1293                 __connman_element_unlock(element);
1294                 break;
1295         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1296                 __connman_element_lock(element);
1297                 g_free(element->ipv4.netmask);
1298                 element->ipv4.netmask = g_strdup(*((const char **) value));
1299                 __connman_element_unlock(element);
1300                 break;
1301         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1302                 __connman_element_lock(element);
1303                 g_free(element->ipv4.gateway);
1304                 element->ipv4.gateway = g_strdup(*((const char **) value));
1305                 __connman_element_unlock(element);
1306                 break;
1307         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
1308                 __connman_element_lock(element);
1309                 g_free(element->ipv4.broadcast);
1310                 element->ipv4.broadcast = g_strdup(*((const char **) value));
1311                 __connman_element_unlock(element);
1312                 break;
1313         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1314                 __connman_element_lock(element);
1315                 g_free(element->ipv4.nameserver);
1316                 element->ipv4.nameserver = g_strdup(*((const char **) value));
1317                 __connman_element_unlock(element);
1318                 break;
1319         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1320                 __connman_element_lock(element);
1321                 g_free(element->wifi.security);
1322                 element->wifi.security = g_strdup(*((const char **) value));
1323                 __connman_element_unlock(element);
1324                 break;
1325         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1326                 __connman_element_lock(element);
1327                 g_free(element->wifi.passphrase);
1328                 element->wifi.passphrase = g_strdup(*((const char **) value));
1329                 __connman_element_unlock(element);
1330                 break;
1331         default:
1332                 return -EINVAL;
1333         }
1334
1335         return 0;
1336 }
1337
1338 int connman_element_get_value(struct connman_element *element,
1339                                 enum connman_property_id id, void *value)
1340 {
1341         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1342                 return -EINVAL;
1343
1344         switch (id) {
1345         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1346                 if (element->ipv4.address == NULL)
1347                         return connman_element_get_value(element->parent,
1348                                                                 id, value);
1349                 __connman_element_lock(element);
1350                 *((char **) value) = element->ipv4.address;
1351                 __connman_element_unlock(element);
1352                 break;
1353         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1354                 if (element->ipv4.netmask == NULL)
1355                         return connman_element_get_value(element->parent,
1356                                                                 id, value);
1357                 __connman_element_lock(element);
1358                 *((char **) value) = element->ipv4.netmask;
1359                 __connman_element_unlock(element);
1360                 break;
1361         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1362                 if (element->ipv4.gateway == NULL)
1363                         return connman_element_get_value(element->parent,
1364                                                                 id, value);
1365                 __connman_element_lock(element);
1366                 *((char **) value) = element->ipv4.gateway;
1367                 __connman_element_unlock(element);
1368                 break;
1369         case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
1370                 if (element->ipv4.broadcast == NULL)
1371                         return connman_element_get_value(element->parent,
1372                                                                 id, value);
1373                 __connman_element_lock(element);
1374                 *((char **) value) = element->ipv4.broadcast;
1375                 __connman_element_unlock(element);
1376                 break;
1377         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1378                 if (element->ipv4.nameserver == NULL)
1379                         return connman_element_get_value(element->parent,
1380                                                                 id, value);
1381                 __connman_element_lock(element);
1382                 *((char **) value) = element->ipv4.nameserver;
1383                 __connman_element_unlock(element);
1384                 break;
1385         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1386                 if (element->wifi.security == NULL)
1387                         return connman_element_get_value(element->parent,
1388                                                                 id, value);
1389                 __connman_element_lock(element);
1390                 *((char **) value) = element->wifi.security;
1391                 __connman_element_unlock(element);
1392                 break;
1393         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1394                 if (element->wifi.passphrase == NULL)
1395                         return connman_element_get_value(element->parent,
1396                                                                 id, value);
1397                 __connman_element_lock(element);
1398                 *((char **) value) = element->wifi.passphrase;
1399                 __connman_element_unlock(element);
1400                 break;
1401         default:
1402                 return -EINVAL;
1403         }
1404
1405         return 0;
1406 }
1407
1408 gboolean connman_element_get_static_property(struct connman_element *element,
1409                                                 const char *name, void *value)
1410 {
1411         GSList *list;
1412         gboolean found = FALSE;
1413
1414         DBG("element %p name %s", element, element->name);
1415
1416         __connman_element_lock(element);
1417
1418         for (list = element->properties; list; list = list->next) {
1419                 struct connman_property *property = list->data;
1420
1421                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1422                         continue;
1423
1424                 if (g_str_equal(property->name, name) == TRUE) {
1425                         switch (property->type) {
1426                         case DBUS_TYPE_STRING:
1427                                 *((char **) value) = property->value;
1428                                 found = TRUE;
1429                                 break;
1430                         }
1431                         break;
1432                 }
1433         }
1434
1435         __connman_element_unlock(element);
1436
1437         return found;
1438 }
1439
1440 gboolean connman_element_get_static_array_property(struct connman_element *element,
1441                                         const char *name, void *value, int *len)
1442 {
1443         GSList *list;
1444         gboolean found = FALSE;
1445
1446         DBG("element %p name %s", element, element->name);
1447
1448         __connman_element_lock(element);
1449
1450         for (list = element->properties; list; list = list->next) {
1451                 struct connman_property *property = list->data;
1452
1453                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1454                         continue;
1455
1456                 if (g_str_equal(property->name, name) == TRUE) {
1457                         *((char **) value) = property->value;
1458                         *len = property->size;
1459                         found = TRUE;
1460                         break;
1461                 }
1462         }
1463
1464         __connman_element_unlock(element);
1465
1466         return found;
1467 }
1468
1469 gboolean connman_element_match_static_property(struct connman_element *element,
1470                                         const char *name, const void *value)
1471 {
1472         GSList *list;
1473         gboolean result = FALSE;
1474
1475         DBG("element %p name %s", element, element->name);
1476
1477         __connman_element_lock(element);
1478
1479         for (list = element->properties; list; list = list->next) {
1480                 struct connman_property *property = list->data;
1481
1482                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1483                         continue;
1484
1485                 if (g_str_equal(property->name, name) == FALSE)
1486                         continue;
1487
1488                 if (property->type == DBUS_TYPE_STRING)
1489                         result = g_str_equal(property->value,
1490                                                 *((const char **) value));
1491
1492                 if (result == TRUE)
1493                         break;
1494         }
1495
1496         __connman_element_unlock(element);
1497
1498         return result;
1499 }
1500
1501 static void append_networks(struct connman_element *element,
1502                                                 DBusMessageIter *entry)
1503 {
1504         DBusMessageIter value, iter;
1505         const char *key = "Networks";
1506
1507         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1508
1509         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1510                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1511                                                                 &value);
1512
1513         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1514                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1515         __connman_element_list(element, CONNMAN_ELEMENT_TYPE_NETWORK, &iter);
1516         dbus_message_iter_close_container(&value, &iter);
1517
1518         dbus_message_iter_close_container(entry, &value);
1519 }
1520
1521 static void emit_networks_signal(DBusConnection *conn,
1522                                         struct connman_element *device)
1523 {
1524         DBusMessage *signal;
1525         DBusMessageIter entry;
1526
1527         DBG("conn %p", conn);
1528
1529         if (device == NULL)
1530                 return;
1531
1532         signal = dbus_message_new_signal(device->path,
1533                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
1534         if (signal == NULL)
1535                 return;
1536
1537         dbus_message_iter_init_append(signal, &entry);
1538
1539         append_networks(device, &entry);
1540
1541         g_dbus_send_message(conn, signal);
1542 }
1543
1544 static void append_connections(DBusMessageIter *entry)
1545 {
1546         DBusMessageIter value, iter;
1547         const char *key = "Connections";
1548
1549         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1550
1551         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1552                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1553                                                                 &value);
1554
1555         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1556                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1557         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
1558         dbus_message_iter_close_container(&value, &iter);
1559
1560         dbus_message_iter_close_container(entry, &value);
1561 }
1562
1563 static void emit_connections_signal(DBusConnection *conn)
1564 {
1565         DBusMessage *signal;
1566         DBusMessageIter entry;
1567
1568         DBG("conn %p", conn);
1569
1570         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1571                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1572         if (signal == NULL)
1573                 return;
1574
1575         dbus_message_iter_init_append(signal, &entry);
1576
1577         append_connections(&entry);
1578
1579         g_dbus_send_message(conn, signal);
1580 }
1581
1582 static void append_state(DBusMessageIter *entry, const char *state)
1583 {
1584         DBusMessageIter value;
1585         const char *key = "State";
1586
1587         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1588
1589         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1590                                         DBUS_TYPE_STRING_AS_STRING, &value);
1591         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &state);
1592         dbus_message_iter_close_container(entry, &value);
1593 }
1594
1595 static void emit_state_change(DBusConnection *conn, const char *state)
1596 {
1597         DBusMessage *signal;
1598         DBusMessageIter entry;
1599
1600         DBG("conn %p", conn);
1601
1602         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1603                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1604         if (signal == NULL)
1605                 return;
1606
1607         dbus_message_iter_init_append(signal, &entry);
1608
1609         append_state(&entry, state);
1610
1611         g_dbus_send_message(conn, signal);
1612 }
1613
1614 static void set_signal_strength(struct connman_element *connection)
1615 {
1616         struct connman_element *element = connection;
1617
1618         while (element != NULL) {
1619                 if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1620                         connection->strength = element->strength;
1621                         break;
1622                 }
1623
1624                 element = element->parent;
1625         }
1626 }
1627
1628 static void probe_element(struct connman_element *element)
1629 {
1630         GSList *list;
1631
1632         DBG("element %p name %s", element, element->name);
1633
1634         for (list = driver_list; list; list = list->next) {
1635                 struct connman_driver *driver = list->data;
1636
1637                 if (match_driver(element, driver) == FALSE)
1638                         continue;
1639
1640                 DBG("driver %p name %s", driver, driver->name);
1641
1642                 if (driver->probe(element) == 0) {
1643                         __connman_element_lock(element);
1644                         element->driver = driver;
1645                         __connman_element_unlock(element);
1646
1647                         enable_element(element);
1648                         break;
1649                 }
1650         }
1651 }
1652
1653 static void register_element(gpointer data, gpointer user_data)
1654 {
1655         struct connman_element *element = data;
1656         const gchar *basepath;
1657         GNode *node;
1658
1659         __connman_element_lock(element);
1660
1661         if (element->parent) {
1662                 node = g_node_find(element_root, G_PRE_ORDER,
1663                                         G_TRAVERSE_ALL, element->parent);
1664                 basepath = element->parent->path;
1665
1666                 if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_UNKNOWN)
1667                         element->subtype = element->parent->subtype;
1668         } else {
1669                 element->parent = element_root->data;
1670
1671                 node = element_root;
1672                 basepath = "";
1673         }
1674
1675         element->path = g_strdup_printf("%s/%s", basepath, element->name);
1676
1677         set_reference_properties(element);
1678
1679         __connman_element_unlock(element);
1680
1681         DBG("element %p path %s", element, element->path);
1682
1683         __connman_element_load(element);
1684
1685         g_node_append_data(node, element);
1686
1687         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1688                 if (g_dbus_register_interface(connection, element->path,
1689                                         CONNMAN_NETWORK_INTERFACE,
1690                                         network_methods, element_signals,
1691                                         NULL, element, NULL) == FALSE)
1692                         connman_error("Failed to register %s network",
1693                                                                 element->path);
1694                 else
1695                         emit_networks_signal(connection, element->parent);
1696         }
1697
1698         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1699                 if (g_dbus_register_interface(connection, element->path,
1700                                         CONNMAN_CONNECTION_INTERFACE,
1701                                         connection_methods, element_signals,
1702                                         NULL, element, NULL) == FALSE)
1703                         connman_error("Failed to register %s connection",
1704                                                                 element->path);
1705                 else {
1706                         set_signal_strength(element);
1707                         emit_connections_signal(connection);
1708                         emit_state_change(connection, "online");
1709                 }
1710         }
1711
1712         __connman_element_store(element);
1713
1714         if (started == FALSE)
1715                 return;
1716
1717         probe_element(element);
1718 }
1719
1720 /**
1721  * connman_element_register:
1722  * @element: the element to register
1723  * @parent: the parent to register the element with
1724  *
1725  * Register an element with the core. It will be register under the given
1726  * parent of if %NULL is provided under the root element.
1727  *
1728  * Returns: %0 on success
1729  */
1730 int connman_element_register(struct connman_element *element,
1731                                         struct connman_element *parent)
1732 {
1733         DBG("element %p name %s parent %p", element, element->name, parent);
1734
1735         if (element->devname == NULL)
1736                 element->devname = g_strdup(element->name);
1737
1738         if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1739                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1740                 if (g_pattern_match_simple(device_filter,
1741                                                 element->devname) == FALSE) {
1742                         DBG("ignoring %s [%s] device", element->name,
1743                                                         element->devname);
1744                         return -EPERM;
1745                 }
1746         }
1747
1748         if (connman_element_ref(element) == NULL)
1749                 return -EINVAL;
1750
1751         __connman_element_lock(element);
1752
1753         if (element->name == NULL) {
1754                 element->name = g_strdup(type2string(element->type));
1755                 if (element->name == NULL) {
1756                         __connman_element_unlock(element);
1757                         return -EINVAL;
1758                 }
1759         }
1760
1761         element->parent = parent;
1762
1763         __connman_element_unlock(element);
1764
1765         register_element(element, NULL);
1766
1767         return 0;
1768 }
1769
1770 static gboolean remove_element(GNode *node, gpointer user_data)
1771 {
1772         struct connman_element *element = node->data;
1773         struct connman_element *root = user_data;
1774
1775         DBG("element %p name %s", element, element->name);
1776
1777         if (element == root)
1778                 return FALSE;
1779
1780         if (node != NULL)
1781                 g_node_unlink(node);
1782
1783         if (element->driver) {
1784                 disable_element(element);
1785
1786                 if (element->driver->remove)
1787                         element->driver->remove(element);
1788
1789                 __connman_element_lock(element);
1790                 element->driver = NULL;
1791                 __connman_element_unlock(element);
1792         }
1793
1794         if (node != NULL)
1795                 g_node_destroy(node);
1796
1797         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1798                 if (__connman_element_count(NULL,
1799                                         CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
1800                         emit_state_change(connection, "offline");
1801                 emit_connections_signal(connection);
1802
1803                 g_dbus_unregister_interface(connection, element->path,
1804                                                 CONNMAN_CONNECTION_INTERFACE);
1805         }
1806
1807         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1808                 emit_networks_signal(connection, element->parent);
1809
1810                 g_dbus_unregister_interface(connection, element->path,
1811                                                 CONNMAN_NETWORK_INTERFACE);
1812         }
1813
1814         connman_element_unref(element);
1815
1816         return FALSE;
1817 }
1818
1819 void connman_element_unregister(struct connman_element *element)
1820 {
1821         GNode *node;
1822
1823         DBG("element %p name %s", element, element->name);
1824
1825         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1826
1827         if (node != NULL)
1828                 g_node_traverse(node, G_POST_ORDER,
1829                                 G_TRAVERSE_ALL, -1, remove_element, NULL);
1830 }
1831
1832 void connman_element_unregister_children(struct connman_element *element)
1833 {
1834         GNode *node;
1835
1836         DBG("element %p name %s", element, element->name);
1837
1838         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1839
1840         if (node != NULL)
1841                 g_node_traverse(node, G_POST_ORDER,
1842                                 G_TRAVERSE_ALL, -1, remove_element, element);
1843 }
1844
1845 static gboolean update_element(GNode *node, gpointer user_data)
1846 {
1847         struct connman_element *element = node->data;
1848         struct connman_element *root = user_data;
1849
1850         DBG("element %p name %s", element, element->name);
1851
1852         if (element->driver && element->driver->update)
1853                 element->driver->update(element);
1854
1855         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION &&
1856                                 root->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1857                 if (element->strength != root->strength) {
1858                         element->strength = root->strength;
1859                         emit_property_changed(connection, element, "Strength",
1860                                         DBUS_TYPE_BYTE, &element->strength);
1861                 }
1862         }
1863
1864         return FALSE;
1865 }
1866
1867 void connman_element_update(struct connman_element *element)
1868 {
1869         GNode *node;
1870
1871         DBG("element %p name %s", element, element->name);
1872
1873         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1874
1875         if (node != NULL)
1876                 g_node_traverse(node, G_PRE_ORDER,
1877                                 G_TRAVERSE_ALL, -1, update_element, element);
1878 }
1879
1880 int connman_element_set_enabled(struct connman_element *element,
1881                                                         gboolean enabled)
1882 {
1883         if (element->enabled == enabled)
1884                 return 0;
1885
1886         element->enabled = enabled;
1887
1888         emit_enabled_signal(connection, element);
1889
1890         return 0;
1891 }
1892
1893 int connman_element_set_scanning(struct connman_element *element,
1894                                                         gboolean scanning)
1895 {
1896         if (element->scanning == scanning)
1897                 return 0;
1898
1899         element->scanning = scanning;
1900
1901         emit_scanning_signal(connection, element);
1902
1903         return 0;
1904 }
1905
1906 int __connman_element_init(DBusConnection *conn, const char *device)
1907 {
1908         struct connman_element *element;
1909
1910         DBG("conn %p", conn);
1911
1912         connection = dbus_connection_ref(conn);
1913         if (connection == NULL)
1914                 return -EIO;
1915
1916         device_filter = g_strdup(device);
1917
1918         element = connman_element_create("root");
1919
1920         element->path = g_strdup("/");
1921         element->type = CONNMAN_ELEMENT_TYPE_ROOT;
1922
1923         create_default_properties(element);
1924
1925         element_root = g_node_new(element);
1926
1927         __connman_device_init();
1928         __connman_network_init();
1929
1930         return 0;
1931 }
1932
1933 static gboolean probe_node(GNode *node, gpointer data)
1934 {
1935         struct connman_element *element = node->data;
1936
1937         DBG("element %p name %s", element, element->name);
1938
1939         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1940                 return FALSE;
1941
1942         if (element->driver)
1943                 return FALSE;
1944
1945         probe_element(element);
1946
1947         return FALSE;
1948 }
1949
1950 void __connman_element_start(void)
1951 {
1952         DBG("");
1953
1954         g_node_traverse(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
1955                                                         probe_node, NULL);
1956
1957         started = TRUE;
1958
1959         __connman_detect_init();
1960 }
1961
1962 void __connman_element_stop(void)
1963 {
1964         DBG("");
1965
1966         __connman_detect_cleanup();
1967 }
1968
1969 static gboolean free_driver(GNode *node, gpointer data)
1970 {
1971         struct connman_element *element = node->data;
1972
1973         DBG("element %p name %s", element, element->name);
1974
1975         if (element->driver) {
1976                 disable_element(element);
1977
1978                 if (element->driver->remove)
1979                         element->driver->remove(element);
1980
1981                 __connman_element_lock(element);
1982                 element->driver = NULL;
1983                 __connman_element_unlock(element);
1984         }
1985
1986         return FALSE;
1987 }
1988
1989 static gboolean free_node(GNode *node, gpointer data)
1990 {
1991         struct connman_element *element = node->data;
1992
1993         DBG("element %p name %s", element, element->name);
1994
1995         if (g_node_depth(node) > 1)
1996                 connman_element_unregister(element);
1997
1998         return FALSE;
1999 }
2000
2001 void __connman_element_cleanup(void)
2002 {
2003         DBG("");
2004
2005         __connman_network_cleanup();
2006         __connman_device_cleanup();
2007
2008         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
2009                                                         free_driver, NULL);
2010
2011         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
2012                                                         free_node, NULL);
2013
2014         g_node_destroy(element_root);
2015         element_root = NULL;
2016
2017         g_free(device_filter);
2018
2019         dbus_connection_unref(connection);
2020 }