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 GStaticRWLock element_lock = G_STATIC_RW_LOCK_INIT;
  38 static GNode *element_root = NULL;
  39
  40 static GSList *driver_list = NULL;
  41
  42 static gchar *device_filter = NULL;
  43
  44 static struct {
  45         enum connman_property_id id;
  46         int type;
  47         const char *name;
  48         const void *value;
  49 } propid_table[] = {
  50         { CONNMAN_PROPERTY_ID_IPV4_METHOD,
  51                 DBUS_TYPE_STRING, "IPv4.Method", "dhcp" },
  52         { CONNMAN_PROPERTY_ID_IPV4_ADDRESS,
  53                 DBUS_TYPE_STRING, "IPv4.Address" },
  54         { CONNMAN_PROPERTY_ID_IPV4_NETMASK,
  55                 DBUS_TYPE_STRING, "IPv4.Netmask" },
  56         { CONNMAN_PROPERTY_ID_IPV4_GATEWAY,
  57                 DBUS_TYPE_STRING, "IPv4.Gateway" },
  58         { CONNMAN_PROPERTY_ID_IPV4_NAMESERVER,
  59                 DBUS_TYPE_STRING, "IPv4.Nameserver" },
  60
  61         { CONNMAN_PROPERTY_ID_WIFI_SECURITY,
  62                 DBUS_TYPE_STRING, "WiFi.Security" },
  63         { CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE,
  64                 DBUS_TYPE_STRING, "WiFi.Passphrase" },
  65
  66         { }
  67 };
  68
  69 static int propid2type(enum connman_property_id id)
  70 {
  71         int i;
  72
  73         for (i = 0; propid_table[i].name; i++) {
  74                 if (propid_table[i].id == id)
  75                         return propid_table[i].type;
  76         }
  77
  78         return DBUS_TYPE_INVALID;
  79 }
  80
  81 static const char *propid2name(enum connman_property_id id)
  82 {
  83         int i;
  84
  85         for (i = 0; propid_table[i].name; i++) {
  86                 if (propid_table[i].id == id)
  87                         return propid_table[i].name;
  88         }
  89
  90         return NULL;
  91 }
  92
  93 static const char *type2string(enum connman_element_type type)
  94 {
  95         switch (type) {
  96         case CONNMAN_ELEMENT_TYPE_UNKNOWN:
  97                 return "unknown";
  98         case CONNMAN_ELEMENT_TYPE_ROOT:
  99                 return "root";
 100         case CONNMAN_ELEMENT_TYPE_PROFILE:
 101                 return "profile";
 102         case CONNMAN_ELEMENT_TYPE_DEVICE:
 103                 return "device";
 104         case CONNMAN_ELEMENT_TYPE_NETWORK:
 105                 return "network";
 106         case CONNMAN_ELEMENT_TYPE_SERVICE:
 107                 return "service";
 108         case CONNMAN_ELEMENT_TYPE_IPV4:
 109                 return "ipv4";
 110         case CONNMAN_ELEMENT_TYPE_IPV6:
 111                 return "ipv6";
 112         case CONNMAN_ELEMENT_TYPE_DHCP:
 113                 return "dhcp";
 114         case CONNMAN_ELEMENT_TYPE_BOOTP:
 115                 return "bootp";
 116         case CONNMAN_ELEMENT_TYPE_ZEROCONF:
 117                 return "zeroconf";
 118         case CONNMAN_ELEMENT_TYPE_RESOLVER:
 119                 return "resolver";
 120         case CONNMAN_ELEMENT_TYPE_CONNECTION:
 121                 return "connection";
 122         }
 123
 124         return NULL;
 125 }
 126
 127 static const char *subtype2string(enum connman_element_subtype type)
 128 {
 129         switch (type) {
 130         case CONNMAN_ELEMENT_SUBTYPE_UNKNOWN:
 131                 return "unknown";
 132         case CONNMAN_ELEMENT_SUBTYPE_FAKE:
 133                 return "fake";
 134         case CONNMAN_ELEMENT_SUBTYPE_NETWORK:
 135                 return "network";
 136         case CONNMAN_ELEMENT_SUBTYPE_ETHERNET:
 137                 return "ethernet";
 138         case CONNMAN_ELEMENT_SUBTYPE_WIFI:
 139                 return "wifi";
 140         case CONNMAN_ELEMENT_SUBTYPE_WIMAX:
 141                 return "wimax";
 142         case CONNMAN_ELEMENT_SUBTYPE_MODEM:
 143                 return "modem";
 144         case CONNMAN_ELEMENT_SUBTYPE_BLUETOOTH:
 145                 return "bluetooth";
 146         }
 147
 148         return NULL;
 149 }
 150
 151 static const char *policy2string(enum connman_element_policy policy)
 152 {
 153         switch (policy) {
 154         case CONNMAN_ELEMENT_POLICY_UNKNOWN:
 155                 return "unknown";
 156         case CONNMAN_ELEMENT_POLICY_OFF:
 157                 return "off";
 158         case CONNMAN_ELEMENT_POLICY_AUTO:
 159                 return "auto";
 160         case CONNMAN_ELEMENT_POLICY_IGNORE:
 161                 return "ignore";
 162         case CONNMAN_ELEMENT_POLICY_ASK:
 163                 return "ask";
 164         }
 165
 166         return NULL;
 167 }
 168
 169 static void append_property(DBusMessageIter *dict,
 170                                 struct connman_property *property)
 171 {
 172         if (property->value == NULL)
 173                 return;
 174
 175         if (property->type == DBUS_TYPE_ARRAY)
 176                 connman_dbus_dict_append_array(dict, property->name,
 177                         property->subtype, &property->value, property->size);
 178         else
 179                 connman_dbus_dict_append_variant(dict, property->name,
 180                                         property->type, &property->value);
 181 }
 182
 183 static void add_common_properties(struct connman_element *element,
 184                                                 DBusMessageIter *dict)
 185 {
 186         GSList *list;
 187
 188         if (element->priority > 0)
 189                 connman_dbus_dict_append_variant(dict, "Priority",
 190                                         DBUS_TYPE_UINT16, &element->priority);
 191
 192         if (element->ipv4.address != NULL)
 193                 connman_dbus_dict_append_variant(dict, "IPv4.Address",
 194                                 DBUS_TYPE_STRING, &element->ipv4.address);
 195         if (element->ipv4.netmask != NULL)
 196                 connman_dbus_dict_append_variant(dict, "IPv4.Netmask",
 197                                 DBUS_TYPE_STRING, &element->ipv4.netmask);
 198         if (element->ipv4.gateway != NULL)
 199                 connman_dbus_dict_append_variant(dict, "IPv4.Gateway",
 200                                 DBUS_TYPE_STRING, &element->ipv4.gateway);
 201
 202         if (element->wifi.security != NULL) {
 203                 const char *passphrase = "";
 204
 205                 connman_dbus_dict_append_variant(dict, "WiFi.Security",
 206                                 DBUS_TYPE_STRING, &element->wifi.security);
 207
 208                 if (element->wifi.passphrase != NULL)
 209                         passphrase = element->wifi.passphrase;
 210
 211                 connman_dbus_dict_append_variant(dict, "WiFi.Passphrase",
 212                                 DBUS_TYPE_STRING, &passphrase);
 213         }
 214
 215         __connman_element_lock(element);
 216
 217         for (list = element->properties; list; list = list->next) {
 218                 struct connman_property *property = list->data;
 219
 220                 append_property(dict, property);
 221         }
 222
 223         __connman_element_unlock(element);
 224 }
 225
 226 static void set_common_property(struct connman_element *element,
 227                                 const char *name, DBusMessageIter *value)
 228 {
 229         GSList *list;
 230
 231         if (g_str_equal(name, "Priority") == TRUE) {
 232                 dbus_message_iter_get_basic(value, &element->priority);
 233                 return;
 234         }
 235
 236         __connman_element_lock(element);
 237
 238         for (list = element->properties; list; list = list->next) {
 239                 struct connman_property *property = list->data;
 240                 const char *str;
 241
 242                 if (g_str_equal(property->name, name) == FALSE)
 243                         continue;
 244
 245                 if (property->flags & CONNMAN_PROPERTY_FLAG_STATIC)
 246                         continue;
 247
 248                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
 249
 250                 if (property->type == DBUS_TYPE_STRING) {
 251                         dbus_message_iter_get_basic(value, &str);
 252                         g_free(property->value);
 253                         property->value = g_strdup(str);
 254                 } else
 255                         property->value = NULL;
 256         }
 257
 258         __connman_element_unlock(element);
 259 }
 260
 261 static DBusMessage *get_properties(DBusConnection *conn,
 262                                         DBusMessage *msg, void *data)
 263 {
 264         struct connman_element *element = data;
 265         DBusMessage *reply;
 266         DBusMessageIter array, dict;
 267         const char *str;
 268
 269         DBG("conn %p", conn);
 270
 271         reply = dbus_message_new_method_return(msg);
 272         if (reply == NULL)
 273                 return NULL;
 274
 275         dbus_message_iter_init_append(reply, &array);
 276
 277         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 278                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 279                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 280                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 281
 282         if (element->parent != NULL &&
 283                         element->parent->type != CONNMAN_ELEMENT_TYPE_ROOT) {
 284                 connman_dbus_dict_append_variant(&dict, "Parent",
 285                                 DBUS_TYPE_OBJECT_PATH, &element->parent->path);
 286         }
 287
 288         str = type2string(element->type);
 289         if (str != NULL)
 290                 connman_dbus_dict_append_variant(&dict, "Type",
 291                                                 DBUS_TYPE_STRING, &str);
 292         str = subtype2string(element->subtype);
 293         if (str != NULL)
 294                 connman_dbus_dict_append_variant(&dict, "Subtype",
 295                                                 DBUS_TYPE_STRING, &str);
 296
 297         connman_dbus_dict_append_variant(&dict, "Enabled",
 298                                         DBUS_TYPE_BOOLEAN, &element->enabled);
 299
 300         add_common_properties(element, &dict);
 301
 302         dbus_message_iter_close_container(&array, &dict);
 303
 304         return reply;
 305 }
 306
 307 static void append_networks(DBusMessageIter *dict)
 308 {
 309         DBusMessageIter entry, value, iter;
 310         const char *key = "Networks";
 311
 312         dbus_message_iter_open_container(dict, DBUS_TYPE_DICT_ENTRY,
 313                                                                 NULL, &entry);
 314
 315         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 316
 317         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 318                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
 319                                                                 &value);
 320
 321         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
 322                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
 323
 324         __connman_element_list(CONNMAN_ELEMENT_TYPE_NETWORK, &iter);
 325
 326         dbus_message_iter_close_container(&value, &iter);
 327
 328         dbus_message_iter_close_container(&entry, &value);
 329
 330         dbus_message_iter_close_container(dict, &entry);
 331 }
 332
 333 static DBusMessage *get_device_properties(DBusConnection *conn,
 334                                         DBusMessage *msg, void *data)
 335 {
 336         struct connman_element *element = data;
 337         DBusMessage *reply;
 338         DBusMessageIter array, dict;
 339         const char *str;
 340
 341         DBG("conn %p", conn);
 342
 343         reply = dbus_message_new_method_return(msg);
 344         if (reply == NULL)
 345                 return NULL;
 346
 347         dbus_message_iter_init_append(reply, &array);
 348
 349         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 350                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 351                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 352                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 353
 354         str = subtype2string(element->subtype);
 355         if (str != NULL)
 356                 connman_dbus_dict_append_variant(&dict, "Type",
 357                                                 DBUS_TYPE_STRING, &str);
 358
 359         str = policy2string(element->policy);
 360         if (str != NULL)
 361                 connman_dbus_dict_append_variant(&dict, "Policy",
 362                                                 DBUS_TYPE_STRING, &str);
 363
 364         connman_dbus_dict_append_variant(&dict, "Powered",
 365                                         DBUS_TYPE_BOOLEAN, &element->enabled);
 366
 367         append_networks(&dict);
 368
 369         add_common_properties(element, &dict);
 370
 371         dbus_message_iter_close_container(&array, &dict);
 372
 373         return reply;
 374 }
 375
 376 static DBusMessage *get_network_properties(DBusConnection *conn,
 377                                         DBusMessage *msg, void *data)
 378 {
 379         struct connman_element *element = data;
 380         DBusMessage *reply;
 381         DBusMessageIter array, dict;
 382         const char *str;
 383
 384         DBG("conn %p", conn);
 385
 386         reply = dbus_message_new_method_return(msg);
 387         if (reply == NULL)
 388                 return NULL;
 389
 390         dbus_message_iter_init_append(reply, &array);
 391
 392         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 393                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 394                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 395                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 396
 397         str = policy2string(element->policy);
 398         if (str != NULL)
 399                 connman_dbus_dict_append_variant(&dict, "Policy",
 400                                                 DBUS_TYPE_STRING, &str);
 401
 402         connman_dbus_dict_append_variant(&dict, "Connected",
 403                                         DBUS_TYPE_BOOLEAN, &element->enabled);
 404
 405         add_common_properties(element, &dict);
 406
 407         dbus_message_iter_close_container(&array, &dict);
 408
 409         return reply;
 410 }
 411
 412 static DBusMessage *set_network_property(DBusConnection *conn,
 413                                         DBusMessage *msg, void *data)
 414 {
 415         struct connman_element *element = data;
 416         DBusMessageIter iter;
 417         DBusMessageIter value;
 418         const char *name;
 419
 420         DBG("conn %p", conn);
 421
 422         if (dbus_message_iter_init(msg, &iter) == FALSE)
 423                 return __connman_error_invalid_arguments(msg);
 424
 425         dbus_message_iter_get_basic(&iter, &name);
 426         dbus_message_iter_next(&iter);
 427         dbus_message_iter_recurse(&iter, &value);
 428
 429         if (__connman_security_check_privileges(msg) < 0)
 430                 return __connman_error_permission_denied(msg);
 431
 432         if (g_str_equal(name, "WiFi.Passphrase") == TRUE) {
 433                 const char *str;
 434
 435                 dbus_message_iter_get_basic(&value, &str);
 436                 g_free(element->wifi.passphrase);
 437                 element->wifi.passphrase = g_strdup(str);
 438         } else
 439                 set_common_property(element, name, &value);
 440
 441         __connman_element_store(element);
 442
 443         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 444 }
 445
 446 static DBusMessage *get_connection_properties(DBusConnection *conn,
 447                                         DBusMessage *msg, void *data)
 448 {
 449         struct connman_element *element = data;
 450         DBusMessage *reply;
 451         DBusMessageIter array, dict;
 452
 453         DBG("conn %p", conn);
 454
 455         reply = dbus_message_new_method_return(msg);
 456         if (reply == NULL)
 457                 return NULL;
 458
 459         dbus_message_iter_init_append(reply, &array);
 460
 461         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 462                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 463                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 464                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 465
 466         add_common_properties(element, &dict);
 467
 468         dbus_message_iter_close_container(&array, &dict);
 469
 470         return reply;
 471 }
 472
 473 static DBusMessage *set_property(DBusConnection *conn,
 474                                         DBusMessage *msg, void *data)
 475 {
 476         struct connman_element *element = data;
 477         DBusMessageIter iter;
 478         DBusMessageIter value;
 479         const char *name;
 480
 481         DBG("conn %p", conn);
 482
 483         if (dbus_message_iter_init(msg, &iter) == FALSE)
 484                 return __connman_error_invalid_arguments(msg);
 485
 486         dbus_message_iter_get_basic(&iter, &name);
 487         dbus_message_iter_next(&iter);
 488         dbus_message_iter_recurse(&iter, &value);
 489
 490         if (__connman_security_check_privileges(msg) < 0)
 491                 return __connman_error_permission_denied(msg);
 492
 493         set_common_property(element, name, &value);
 494
 495         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 496 }
 497
 498 static DBusMessage *clear_property(DBusConnection *conn,
 499                                         DBusMessage *msg, void *data)
 500 {
 501         struct connman_element *element = data;
 502         const char *name;
 503         GSList *list;
 504
 505         DBG("conn %p", conn);
 506
 507         if (dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &name,
 508                                                 DBUS_TYPE_INVALID) == FALSE)
 509                 return __connman_error_invalid_arguments(msg);
 510
 511         if (__connman_security_check_privileges(msg) < 0)
 512                 return __connman_error_permission_denied(msg);
 513
 514         __connman_element_lock(element);
 515
 516         for (list = element->properties; list; list = list->next) {
 517                 struct connman_property *property = list->data;
 518
 519                 if (g_str_equal(property->name, name) == FALSE)
 520                         continue;
 521
 522                 if (property->flags & CONNMAN_PROPERTY_FLAG_STATIC)
 523                         continue;
 524
 525                 if (property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE)
 526                         continue;
 527
 528                 property->flags |= CONNMAN_PROPERTY_FLAG_REFERENCE;
 529
 530                 if (property->type == DBUS_TYPE_STRING)
 531                         g_free(property->value);
 532
 533                 property->value = NULL;
 534         }
 535
 536         __connman_element_unlock(element);
 537
 538         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 539 }
 540
 541 static DBusMessage *do_update(DBusConnection *conn,
 542                                         DBusMessage *msg, void *data)
 543 {
 544         struct connman_element *element = data;
 545
 546         DBG("conn %p", conn);
 547
 548         if (element->enabled == FALSE)
 549                 return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 550
 551         if (element->driver && element->driver->update) {
 552                 DBG("Calling update callback");
 553                 element->driver->update(element);
 554         }
 555
 556         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 557 }
 558
 559 static DBusMessage *do_enable(DBusConnection *conn,
 560                                         DBusMessage *msg, void *data)
 561 {
 562         struct connman_element *element = data;
 563
 564         DBG("conn %p", conn);
 565
 566         if (element->enabled == TRUE)
 567                 return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 568
 569         if (element->driver && element->driver->enable) {
 570                 DBG("Calling enable callback");
 571                 if (element->driver->enable(element) < 0)
 572                         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 573         }
 574
 575         element->enabled = TRUE;
 576
 577         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 578                                 CONNMAN_MANAGER_INTERFACE, "ElementUpdated",
 579                                 DBUS_TYPE_OBJECT_PATH, &element->path,
 580                                                         DBUS_TYPE_INVALID);
 581
 582         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 583 }
 584
 585 static DBusMessage *do_disable(DBusConnection *conn,
 586                                         DBusMessage *msg, void *data)
 587 {
 588         struct connman_element *element = data;
 589
 590         DBG("conn %p", conn);
 591
 592         if (element->enabled == FALSE)
 593                 return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 594
 595         if (element->driver && element->driver->disable) {
 596                 DBG("Calling disable callback");
 597                 if (element->driver->disable(element) < 0)
 598                         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 599         }
 600
 601         element->enabled = FALSE;
 602
 603         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
 604                                 CONNMAN_MANAGER_INTERFACE, "ElementUpdated",
 605                                 DBUS_TYPE_OBJECT_PATH, &element->path,
 606                                                         DBUS_TYPE_INVALID);
 607
 608         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 609 }
 610
 611 static GDBusMethodTable element_methods[] = {
 612         { "GetProperties", "",   "a{sv}", get_properties },
 613         { "SetProperty",   "sv", "",      set_property   },
 614         { "ClearProperty", "s",  "",      clear_property },
 615         { "Update",        "",   "",      do_update      },
 616         { "Enable",        "",   "",      do_enable      },
 617         { "Disable",       "",   "",      do_disable     },
 618         { },
 619 };
 620
 621 static GDBusSignalTable element_signals[] = {
 622         { "PropertyChanged", "sv" },
 623         { },
 624 };
 625
 626 static GDBusMethodTable device_methods[] = {
 627         { "GetProperties", "",   "a{sv}", get_device_properties },
 628         { },
 629 };
 630
 631 static GDBusMethodTable network_methods[] = {
 632         { "GetProperties", "",   "a{sv}", get_network_properties },
 633         { "SetProperty",   "sv", "",      set_network_property   },
 634         { },
 635 };
 636
 637 static GDBusMethodTable connection_methods[] = {
 638         { "GetProperties", "",   "a{sv}", get_connection_properties },
 639         { },
 640 };
 641
 642 struct append_filter {
 643         enum connman_element_type type;
 644         DBusMessageIter *iter;
 645 };
 646
 647 static gboolean append_path(GNode *node, gpointer user_data)
 648 {
 649         struct connman_element *element = node->data;
 650         struct append_filter *filter = user_data;
 651
 652         DBG("element %p name %s", element, element->name);
 653
 654         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 655                 return FALSE;
 656
 657         if (filter->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 658                                         filter->type != element->type)
 659                 return FALSE;
 660
 661         dbus_message_iter_append_basic(filter->iter,
 662                                 DBUS_TYPE_OBJECT_PATH, &element->path);
 663
 664         return FALSE;
 665 }
 666
 667 void __connman_element_list(enum connman_element_type type,
 668                                                 DBusMessageIter *iter)
 669 {
 670         struct append_filter filter = { type, iter };
 671
 672         DBG("");
 673
 674         g_static_rw_lock_reader_lock(&element_lock);
 675         g_node_traverse(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 676                                                         append_path, &filter);
 677         g_static_rw_lock_reader_unlock(&element_lock);
 678 }
 679
 680 struct count_data {
 681         enum connman_element_type type;
 682         int count;
 683 };
 684
 685 static gboolean count_element(GNode *node, gpointer user_data)
 686 {
 687         struct connman_element *element = node->data;
 688         struct count_data *data = user_data;
 689
 690         DBG("element %p name %s", element, element->name);
 691
 692         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 693                 return FALSE;
 694
 695         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 696                                         data->type != element->type)
 697                 return FALSE;
 698
 699         data->count++;
 700
 701         return FALSE;
 702 }
 703
 704 int __connman_element_count(enum connman_element_type type)
 705 {
 706         struct count_data data = { type, 0 };
 707
 708         DBG("");
 709
 710         g_static_rw_lock_reader_lock(&element_lock);
 711         g_node_traverse(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 712                                                         count_element, &data);
 713         g_static_rw_lock_reader_unlock(&element_lock);
 714
 715         return data.count;
 716 }
 717
 718 static gint compare_priority(gconstpointer a, gconstpointer b)
 719 {
 720         const struct connman_driver *driver1 = a;
 721         const struct connman_driver *driver2 = b;
 722
 723         return driver2->priority - driver1->priority;
 724 }
 725
 726 static gboolean match_driver(struct connman_element *element,
 727                                         struct connman_driver *driver)
 728 {
 729         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 730                 return FALSE;
 731
 732         if (element->type != driver->type &&
 733                         driver->type != CONNMAN_ELEMENT_TYPE_UNKNOWN)
 734                 return FALSE;
 735
 736         if (element->subtype == driver->subtype ||
 737                         driver->subtype == CONNMAN_ELEMENT_SUBTYPE_UNKNOWN)
 738                 return TRUE;
 739
 740         return FALSE;
 741 }
 742
 743 static gboolean probe_driver(GNode *node, gpointer data)
 744 {
 745         struct connman_element *element = node->data;
 746         struct connman_driver *driver = data;
 747
 748         DBG("element %p name %s", element, element->name);
 749
 750         if (!element->driver && match_driver(element, driver) == TRUE) {
 751                 if (driver->probe(element) < 0)
 752                         return FALSE;
 753
 754                 __connman_element_lock(element);
 755                 element->driver = driver;
 756                 __connman_element_unlock(element);
 757         }
 758
 759         return FALSE;
 760 }
 761
 762 void __connman_driver_rescan(struct connman_driver *driver)
 763 {
 764         DBG("driver %p name %s", driver, driver->name);
 765
 766         if (!driver->probe)
 767                 return;
 768
 769         g_static_rw_lock_writer_lock(&element_lock);
 770
 771         if (element_root != NULL)
 772                 g_node_traverse(element_root, G_PRE_ORDER,
 773                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 774
 775         g_static_rw_lock_writer_unlock(&element_lock);
 776 }
 777
 778 /**
 779  * connman_driver_register:
 780  * @driver: driver definition
 781  *
 782  * Register a new driver
 783  *
 784  * Returns: %0 on success
 785  */
 786 int connman_driver_register(struct connman_driver *driver)
 787 {
 788         DBG("driver %p name %s", driver, driver->name);
 789
 790         if (driver->type == CONNMAN_ELEMENT_TYPE_ROOT)
 791                 return -EINVAL;
 792
 793         if (!driver->probe)
 794                 return -EINVAL;
 795
 796         g_static_rw_lock_writer_lock(&element_lock);
 797
 798         driver_list = g_slist_insert_sorted(driver_list, driver,
 799                                                         compare_priority);
 800
 801         if (element_root != NULL)
 802                 g_node_traverse(element_root, G_PRE_ORDER,
 803                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 804
 805         g_static_rw_lock_writer_unlock(&element_lock);
 806
 807         return 0;
 808 }
 809
 810 static gboolean remove_driver(GNode *node, gpointer data)
 811 {
 812         struct connman_element *element = node->data;
 813         struct connman_driver *driver = data;
 814
 815         DBG("element %p name %s", element, element->name);
 816
 817         if (element->driver == driver) {
 818                 if (driver->remove)
 819                         driver->remove(element);
 820
 821                 __connman_element_lock(element);
 822                 element->driver = NULL;
 823                 __connman_element_unlock(element);
 824         }
 825
 826         return FALSE;
 827 }
 828
 829 /**
 830  * connman_driver_unregister:
 831  * @driver: driver definition
 832  *
 833  * Remove a previously registered driver
 834  */
 835 void connman_driver_unregister(struct connman_driver *driver)
 836 {
 837         DBG("driver %p name %s", driver, driver->name);
 838
 839         g_static_rw_lock_writer_lock(&element_lock);
 840
 841         driver_list = g_slist_remove(driver_list, driver);
 842
 843         if (element_root != NULL)
 844                 g_node_traverse(element_root, G_POST_ORDER,
 845                                 G_TRAVERSE_ALL, -1, remove_driver, driver);
 846
 847         g_static_rw_lock_writer_unlock(&element_lock);
 848 }
 849
 850 /**
 851  * connman_element_create:
 852  * @name: element name
 853  *
 854  * Allocate a new element and assign the given #name to it. If the name
 855  * is #NULL, it will be later on created based on the element type.
 856  *
 857  * Returns: a newly-allocated #connman_element structure
 858  */
 859 struct connman_element *connman_element_create(const char *name)
 860 {
 861         struct connman_element *element;
 862
 863         element = g_try_new0(struct connman_element, 1);
 864         if (element == NULL)
 865                 return NULL;
 866
 867         DBG("element %p", element);
 868
 869         element->refcount = 1;
 870
 871         element->name    = g_strdup(name);
 872         element->type    = CONNMAN_ELEMENT_TYPE_UNKNOWN;
 873         element->subtype = CONNMAN_ELEMENT_SUBTYPE_UNKNOWN;
 874         element->state   = CONNMAN_ELEMENT_STATE_CLOSED;
 875         element->policy  = CONNMAN_ELEMENT_POLICY_AUTO;
 876         element->index   = -1;
 877         element->enabled = FALSE;
 878
 879         return element;
 880 }
 881
 882 struct connman_element *connman_element_ref(struct connman_element *element)
 883 {
 884         DBG("element %p name %s refcount %d", element, element->name,
 885                                 g_atomic_int_get(&element->refcount) + 1);
 886
 887         g_atomic_int_inc(&element->refcount);
 888
 889         return element;
 890 }
 891
 892 static void free_properties(struct connman_element *element)
 893 {
 894         GSList *list;
 895
 896         DBG("element %p name %s", element, element->name);
 897
 898         __connman_element_lock(element);
 899
 900         for (list = element->properties; list; list = list->next) {
 901                 struct connman_property *property = list->data;
 902
 903                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE)) {
 904                         if (property->type == DBUS_TYPE_STRING)
 905                                 g_free(property->value);
 906                         if (property->type == DBUS_TYPE_ARRAY &&
 907                                         property->subtype == DBUS_TYPE_BYTE)
 908                                 g_free(property->value);
 909                 }
 910
 911                 g_free(property);
 912         }
 913
 914         g_slist_free(element->properties);
 915
 916         element->properties = NULL;
 917
 918         __connman_element_unlock(element);
 919 }
 920
 921 void connman_element_unref(struct connman_element *element)
 922 {
 923         DBG("element %p name %s refcount %d", element, element->name,
 924                                 g_atomic_int_get(&element->refcount) - 1);
 925
 926         if (g_atomic_int_dec_and_test(&element->refcount) == TRUE) {
 927                 free_properties(element);
 928                 g_free(element->ipv4.address);
 929                 g_free(element->ipv4.netmask);
 930                 g_free(element->ipv4.gateway);
 931                 g_free(element->ipv4.network);
 932                 g_free(element->ipv4.broadcast);
 933                 g_free(element->ipv4.nameserver);
 934                 g_free(element->path);
 935                 g_free(element->name);
 936                 g_free(element);
 937         }
 938 }
 939
 940 int connman_element_add_static_property(struct connman_element *element,
 941                                 const char *name, int type, const void *value)
 942 {
 943         struct connman_property *property;
 944
 945         DBG("element %p name %s", element, element->name);
 946
 947         if (type != DBUS_TYPE_STRING)
 948                 return -EINVAL;
 949
 950         property = g_try_new0(struct connman_property, 1);
 951         if (property == NULL)
 952                 return -ENOMEM;
 953
 954         property->flags = CONNMAN_PROPERTY_FLAG_STATIC;
 955         property->id    = CONNMAN_PROPERTY_ID_INVALID;
 956         property->name  = g_strdup(name);
 957         property->type  = type;
 958
 959         DBG("name %s type %d value %p", name, type, value);
 960
 961         switch (type) {
 962         case DBUS_TYPE_STRING:
 963                 property->value = g_strdup(*((const char **) value));
 964                 break;
 965         }
 966
 967         __connman_element_lock(element);
 968         element->properties = g_slist_append(element->properties, property);
 969         __connman_element_unlock(element);
 970
 971         return 0;
 972 }
 973
 974 int connman_element_add_static_array_property(struct connman_element *element,
 975                         const char *name, int type, const void *value, int len)
 976 {
 977         struct connman_property *property;
 978
 979         DBG("element %p name %s", element, element->name);
 980
 981         if (type != DBUS_TYPE_BYTE)
 982                 return -EINVAL;
 983
 984         property = g_try_new0(struct connman_property, 1);
 985         if (property == NULL)
 986                 return -ENOMEM;
 987
 988         property->flags   = CONNMAN_PROPERTY_FLAG_STATIC;
 989         property->id      = CONNMAN_PROPERTY_ID_INVALID;
 990         property->name    = g_strdup(name);
 991         property->type    = DBUS_TYPE_ARRAY;
 992         property->subtype = type;
 993
 994         DBG("name %s type %d value %p", name, type, value);
 995
 996         switch (type) {
 997         case DBUS_TYPE_BYTE:
 998                 property->value = g_try_malloc(len);
 999                 if (property->value != NULL) {
1000                         memcpy(property->value,
1001                                 *((const unsigned char **) value), len);
1002                         property->size = len;
1003                 }
1004                 break;
1005         }
1006
1007         __connman_element_lock(element);
1008         element->properties = g_slist_append(element->properties, property);
1009         __connman_element_unlock(element);
1010
1011         return 0;
1012 }
1013
1014 static void *get_reference_value(struct connman_element *element,
1015                                                 enum connman_property_id id)
1016 {
1017         GSList *list;
1018
1019         DBG("element %p name %s", element, element->name);
1020
1021         for (list = element->properties; list; list = list->next) {
1022                 struct connman_property *property = list->data;
1023
1024                 if (property->id != id)
1025                         continue;
1026
1027                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1028                         return property->value;
1029         }
1030
1031         if (element->parent == NULL)
1032                 return NULL;
1033
1034         return get_reference_value(element->parent, id);
1035 }
1036
1037 static void set_reference_properties(struct connman_element *element)
1038 {
1039         GSList *list;
1040
1041         DBG("element %p name %s", element, element->name);
1042
1043         for (list = element->properties; list; list = list->next) {
1044                 struct connman_property *property = list->data;
1045
1046                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1047                         continue;
1048
1049                 property->value = get_reference_value(element->parent,
1050                                                                 property->id);
1051         }
1052 }
1053
1054 static struct connman_property *create_property(struct connman_element *element,
1055                                                 enum connman_property_id id)
1056 {
1057         struct connman_property *property;
1058         GSList *list;
1059
1060         DBG("element %p name %s", element, element->name);
1061
1062         __connman_element_lock(element);
1063
1064         for (list = element->properties; list; list = list->next) {
1065                 property = list->data;
1066
1067                 if (property->id == id)
1068                         goto unlock;
1069         }
1070
1071         property = g_try_new0(struct connman_property, 1);
1072         if (property == NULL)
1073                 goto unlock;
1074
1075         property->flags = CONNMAN_PROPERTY_FLAG_REFERENCE;
1076         property->id    = id;
1077         property->name  = g_strdup(propid2name(id));
1078         property->type  = propid2type(id);
1079
1080         if (property->name == NULL) {
1081                 g_free(property);
1082                 property = NULL;
1083                 goto unlock;
1084         }
1085
1086         element->properties = g_slist_append(element->properties, property);
1087
1088 unlock:
1089         __connman_element_unlock(element);
1090
1091         return property;
1092 }
1093
1094 static void create_default_properties(struct connman_element *element)
1095 {
1096         struct connman_property *property;
1097         int i;
1098
1099         DBG("element %p name %s", element, element->name);
1100
1101         for (i = 0; propid_table[i].name; i++) {
1102                 DBG("property %s", propid_table[i].name);
1103
1104                 property = create_property(element, propid_table[i].id);
1105
1106                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
1107
1108                 if (propid_table[i].type != DBUS_TYPE_STRING)
1109                         continue;
1110
1111                 if (propid_table[i].value)
1112                         property->value = g_strdup(propid_table[i].value);
1113                 else
1114                         property->value = g_strdup("");
1115         }
1116 }
1117
1118 static int define_properties_valist(struct connman_element *element,
1119                                                                 va_list args)
1120 {
1121         enum connman_property_id id;
1122
1123         DBG("element %p name %s", element, element->name);
1124
1125         id = va_arg(args, enum connman_property_id);
1126
1127         while (id != CONNMAN_PROPERTY_ID_INVALID) {
1128
1129                 DBG("property %d", id);
1130
1131                 create_property(element, id);
1132
1133                 id = va_arg(args, enum connman_property_id);
1134         }
1135
1136         return 0;
1137 }
1138
1139 /**
1140  * connman_element_define_properties:
1141  * @element: an element
1142  * @varargs: list of property identifiers
1143  *
1144  * Define the valid properties for an element.
1145  *
1146  * Returns: %0 on success
1147  */
1148 int connman_element_define_properties(struct connman_element *element, ...)
1149 {
1150         va_list args;
1151         int err;
1152
1153         DBG("element %p name %s", element, element->name);
1154
1155         va_start(args, element);
1156
1157         err = define_properties_valist(element, args);
1158
1159         va_end(args);
1160
1161         return err;
1162 }
1163
1164 int connman_element_create_property(struct connman_element *element,
1165                                                 const char *name, int type)
1166 {
1167         return -EIO;
1168 }
1169
1170 int connman_element_set_property(struct connman_element *element,
1171                                 enum connman_property_id id, const void *value)
1172 {
1173         switch (id) {
1174         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1175                 __connman_element_lock(element);
1176                 g_free(element->ipv4.address);
1177                 element->ipv4.address = g_strdup(*((const char **) value));
1178                 __connman_element_unlock(element);
1179                 break;
1180         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1181                 __connman_element_lock(element);
1182                 g_free(element->ipv4.netmask);
1183                 element->ipv4.netmask = g_strdup(*((const char **) value));
1184                 __connman_element_unlock(element);
1185                 break;
1186         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1187                 __connman_element_lock(element);
1188                 g_free(element->ipv4.gateway);
1189                 element->ipv4.gateway = g_strdup(*((const char **) value));
1190                 __connman_element_unlock(element);
1191                 break;
1192         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1193                 __connman_element_lock(element);
1194                 g_free(element->ipv4.nameserver);
1195                 element->ipv4.nameserver = g_strdup(*((const char **) value));
1196                 __connman_element_unlock(element);
1197                 break;
1198         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1199                 __connman_element_lock(element);
1200                 g_free(element->wifi.security);
1201                 element->wifi.security = g_strdup(*((const char **) value));
1202                 __connman_element_unlock(element);
1203                 break;
1204         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1205                 __connman_element_lock(element);
1206                 g_free(element->wifi.passphrase);
1207                 element->wifi.passphrase = g_strdup(*((const char **) value));
1208                 __connman_element_unlock(element);
1209                 break;
1210         default:
1211                 return -EINVAL;
1212         }
1213
1214         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
1215                                 CONNMAN_MANAGER_INTERFACE, "ElementUpdated",
1216                                 DBUS_TYPE_OBJECT_PATH, &element->path,
1217                                                         DBUS_TYPE_INVALID);
1218
1219         return 0;
1220 }
1221
1222 int connman_element_get_value(struct connman_element *element,
1223                                 enum connman_property_id id, void *value)
1224 {
1225         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1226                 return -EINVAL;
1227
1228         switch (id) {
1229         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1230                 if (element->ipv4.address == NULL)
1231                         return connman_element_get_value(element->parent,
1232                                                                 id, value);
1233                 __connman_element_lock(element);
1234                 *((char **) value) = element->ipv4.address;
1235                 __connman_element_unlock(element);
1236                 break;
1237         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1238                 if (element->ipv4.netmask == NULL)
1239                         return connman_element_get_value(element->parent,
1240                                                                 id, value);
1241                 __connman_element_lock(element);
1242                 *((char **) value) = element->ipv4.netmask;
1243                 __connman_element_unlock(element);
1244                 break;
1245         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1246                 if (element->ipv4.gateway == NULL)
1247                         return connman_element_get_value(element->parent,
1248                                                                 id, value);
1249                 __connman_element_lock(element);
1250                 *((char **) value) = element->ipv4.gateway;
1251                 __connman_element_unlock(element);
1252                 break;
1253         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1254                 if (element->ipv4.nameserver == NULL)
1255                         return connman_element_get_value(element->parent,
1256                                                                 id, value);
1257                 __connman_element_lock(element);
1258                 *((char **) value) = element->ipv4.nameserver;
1259                 __connman_element_unlock(element);
1260                 break;
1261         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1262                 if (element->wifi.security == NULL)
1263                         return connman_element_get_value(element->parent,
1264                                                                 id, value);
1265                 __connman_element_lock(element);
1266                 *((char **) value) = element->wifi.security;
1267                 __connman_element_unlock(element);
1268                 break;
1269         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1270                 if (element->wifi.passphrase == NULL)
1271                         return connman_element_get_value(element->parent,
1272                                                                 id, value);
1273                 __connman_element_lock(element);
1274                 *((char **) value) = element->wifi.passphrase;
1275                 __connman_element_unlock(element);
1276                 break;
1277         default:
1278                 return -EINVAL;
1279         }
1280
1281         return 0;
1282 }
1283
1284 gboolean connman_element_get_static_property(struct connman_element *element,
1285                                                 const char *name, void *value)
1286 {
1287         GSList *list;
1288         gboolean found = FALSE;
1289
1290         DBG("element %p name %s", element, element->name);
1291
1292         __connman_element_lock(element);
1293
1294         for (list = element->properties; list; list = list->next) {
1295                 struct connman_property *property = list->data;
1296
1297                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1298                         continue;
1299
1300                 if (g_str_equal(property->name, name) == TRUE) {
1301                         *((char **) value) = property->value;
1302                         found = TRUE;
1303                         break;
1304                 }
1305         }
1306
1307         __connman_element_unlock(element);
1308
1309         return found;
1310 }
1311
1312 gboolean connman_element_get_static_array_property(struct connman_element *element,
1313                                         const char *name, void *value, int *len)
1314 {
1315         GSList *list;
1316         gboolean found = FALSE;
1317
1318         DBG("element %p name %s", element, element->name);
1319
1320         __connman_element_lock(element);
1321
1322         for (list = element->properties; list; list = list->next) {
1323                 struct connman_property *property = list->data;
1324
1325                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1326                         continue;
1327
1328                 if (g_str_equal(property->name, name) == TRUE) {
1329                         *((char **) value) = property->value;
1330                         *len = property->size;
1331                         found = TRUE;
1332                         break;
1333                 }
1334         }
1335
1336         __connman_element_unlock(element);
1337
1338         return found;
1339 }
1340
1341 gboolean connman_element_match_static_property(struct connman_element *element,
1342                                         const char *name, const void *value)
1343 {
1344         GSList *list;
1345         gboolean result = FALSE;
1346
1347         DBG("element %p name %s", element, element->name);
1348
1349         __connman_element_lock(element);
1350
1351         for (list = element->properties; list; list = list->next) {
1352                 struct connman_property *property = list->data;
1353
1354                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1355                         continue;
1356
1357                 if (g_str_equal(property->name, name) == FALSE)
1358                         continue;
1359
1360                 if (property->type == DBUS_TYPE_STRING)
1361                         result = g_str_equal(property->value,
1362                                                 *((const char **) value));
1363
1364                 if (result == TRUE)
1365                         break;
1366         }
1367
1368         __connman_element_unlock(element);
1369
1370         return result;
1371 }
1372
1373 static void append_devices(DBusMessageIter *entry)
1374 {
1375         DBusMessageIter value, iter;
1376         const char *key = "Devices";
1377
1378         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1379
1380         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1381                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1382                                                                 &value);
1383
1384         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1385                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1386
1387         //__connman_element_list(CONNMAN_ELEMENT_TYPE_DEVICE, &iter);
1388
1389         dbus_message_iter_close_container(&value, &iter);
1390
1391         dbus_message_iter_close_container(entry, &value);
1392 }
1393
1394 static void emit_devices_signal(DBusConnection *conn)
1395 {
1396         DBusMessage *signal;
1397         DBusMessageIter entry;
1398
1399         DBG("conn %p", conn);
1400
1401         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1402                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1403         if (signal == NULL)
1404                 return;
1405
1406         dbus_message_iter_init_append(signal, &entry);
1407
1408         append_devices(&entry);
1409
1410         g_dbus_send_message(conn, signal);
1411 }
1412
1413 static void append_connections(DBusMessageIter *entry)
1414 {
1415         DBusMessageIter value, iter;
1416         const char *key = "Connections";
1417
1418         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1419
1420         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1421                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1422                                                                 &value);
1423
1424         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1425                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1426
1427         //__connman_element_list(CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
1428
1429         dbus_message_iter_close_container(&value, &iter);
1430
1431         dbus_message_iter_close_container(entry, &value);
1432 }
1433
1434 static void emit_connections_signal(DBusConnection *conn)
1435 {
1436         DBusMessage *signal;
1437         DBusMessageIter entry;
1438
1439         DBG("conn %p", conn);
1440
1441         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1442                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1443         if (signal == NULL)
1444                 return;
1445
1446         dbus_message_iter_init_append(signal, &entry);
1447
1448         append_connections(&entry);
1449
1450         g_dbus_send_message(conn, signal);
1451 }
1452
1453 static void append_state(DBusMessageIter *entry, const char *state)
1454 {
1455         DBusMessageIter value;
1456         const char *key = "State";
1457
1458         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1459
1460         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1461                                         DBUS_TYPE_STRING_AS_STRING, &value);
1462
1463         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &state);
1464
1465         dbus_message_iter_close_container(entry, &value);
1466 }
1467
1468 static void emit_state_change(DBusConnection *conn, const char *state)
1469 {
1470         DBusMessage *signal;
1471         DBusMessageIter entry;
1472
1473         DBG("conn %p", conn);
1474
1475         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1476                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1477         if (signal == NULL)
1478                 return;
1479
1480         dbus_message_iter_init_append(signal, &entry);
1481
1482         append_state(&entry, state);
1483
1484         g_dbus_send_message(conn, signal);
1485 }
1486
1487 static void register_element(gpointer data, gpointer user_data)
1488 {
1489         struct connman_element *element = data;
1490         const gchar *basepath;
1491         GSList *list;
1492         GNode *node;
1493
1494         g_static_rw_lock_writer_lock(&element_lock);
1495
1496         __connman_element_lock(element);
1497
1498         if (element->parent) {
1499                 node = g_node_find(element_root, G_PRE_ORDER,
1500                                         G_TRAVERSE_ALL, element->parent);
1501                 basepath = element->parent->path;
1502
1503                 if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_UNKNOWN)
1504                         element->subtype = element->parent->subtype;
1505         } else {
1506                 element->parent = element_root->data;
1507
1508                 node = element_root;
1509                 basepath = "";
1510         }
1511
1512         element->path = g_strdup_printf("%s/%s", basepath, element->name);
1513
1514         set_reference_properties(element);
1515
1516         __connman_element_unlock(element);
1517
1518         DBG("element %p path %s", element, element->path);
1519
1520         __connman_element_load(element);
1521
1522         g_node_append_data(node, element);
1523
1524         if (g_dbus_register_interface(connection, element->path,
1525                                         CONNMAN_ELEMENT_INTERFACE,
1526                                         element_methods, element_signals,
1527                                         NULL, element, NULL) == FALSE)
1528                 connman_error("Failed to register %s element", element->path);
1529
1530         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1531                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1532                 if (g_dbus_register_interface(connection, element->path,
1533                                         CONNMAN_DEVICE_INTERFACE,
1534                                         device_methods, element_signals,
1535                                         NULL, element, NULL) == FALSE)
1536                         connman_error("Failed to register %s device",
1537                                                                 element->path);
1538                 else
1539                         emit_devices_signal(connection);
1540         }
1541
1542         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1543                 if (g_dbus_register_interface(connection, element->path,
1544                                         CONNMAN_NETWORK_INTERFACE,
1545                                         network_methods, element_signals,
1546                                         NULL, element, NULL) == FALSE)
1547                         connman_error("Failed to register %s network",
1548                                                                 element->path);
1549         }
1550
1551         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1552                 if (g_dbus_register_interface(connection, element->path,
1553                                         CONNMAN_CONNECTION_INTERFACE,
1554                                         connection_methods, element_signals,
1555                                         NULL, element, NULL) == FALSE)
1556                         connman_error("Failed to register %s connection",
1557                                                                 element->path);
1558                 else {
1559                         emit_connections_signal(connection);
1560                         emit_state_change(connection, "online");
1561                 }
1562         }
1563
1564         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
1565                                 CONNMAN_MANAGER_INTERFACE, "ElementAdded",
1566                                 DBUS_TYPE_OBJECT_PATH, &element->path,
1567                                                         DBUS_TYPE_INVALID);
1568
1569         g_static_rw_lock_writer_unlock(&element_lock);
1570
1571         __connman_element_store(element);
1572
1573         g_static_rw_lock_writer_lock(&element_lock);
1574
1575         for (list = driver_list; list; list = list->next) {
1576                 struct connman_driver *driver = list->data;
1577
1578                 if (match_driver(element, driver) == FALSE)
1579                         continue;
1580
1581                 DBG("driver %p name %s", driver, driver->name);
1582
1583                 if (driver->probe(element) == 0) {
1584                         __connman_element_lock(element);
1585                         element->driver = driver;
1586                         __connman_element_unlock(element);
1587                         break;
1588                 }
1589         }
1590
1591         g_static_rw_lock_writer_unlock(&element_lock);
1592 }
1593
1594 /**
1595  * connman_element_register:
1596  * @element: the element to register
1597  * @parent: the parent to register the element with
1598  *
1599  * Register an element with the core. It will be register under the given
1600  * parent of if %NULL is provided under the root element.
1601  *
1602  * Returns: %0 on success
1603  */
1604 int connman_element_register(struct connman_element *element,
1605                                         struct connman_element *parent)
1606 {
1607         DBG("element %p name %s parent %p", element, element->name, parent);
1608
1609         if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE) {
1610                 if (g_pattern_match_simple(device_filter,
1611                                                 element->name) == FALSE) {
1612                         DBG("ignoring %s device", element->name);
1613                         return -EPERM;
1614                 }
1615         }
1616
1617         if (connman_element_ref(element) == NULL)
1618                 return -EINVAL;
1619
1620         __connman_element_lock(element);
1621
1622         if (element->name == NULL) {
1623                 element->name = g_strdup(type2string(element->type));
1624                 if (element->name == NULL) {
1625                         __connman_element_unlock(element);
1626                         return -EINVAL;
1627                 }
1628         }
1629
1630         element->parent = parent;
1631
1632         __connman_element_unlock(element);
1633
1634         register_element(element, NULL);
1635
1636         return 0;
1637 }
1638
1639 static gboolean remove_element(GNode *node, gpointer user_data)
1640 {
1641         struct connman_element *element = node->data;
1642         struct connman_element *root = user_data;
1643
1644         DBG("element %p name %s", element, element->name);
1645
1646         if (element == root)
1647                 return FALSE;
1648
1649         if (element->driver) {
1650                 if (element->driver->remove)
1651                         element->driver->remove(element);
1652
1653                 __connman_element_lock(element);
1654                 element->driver = NULL;
1655                 __connman_element_unlock(element);
1656         }
1657
1658         if (node != NULL) {
1659                 g_node_unlink(node);
1660                 g_node_destroy(node);
1661         }
1662
1663         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
1664                                 CONNMAN_MANAGER_INTERFACE, "ElementRemoved",
1665                                 DBUS_TYPE_OBJECT_PATH, &element->path,
1666                                                         DBUS_TYPE_INVALID);
1667
1668         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1669                 emit_state_change(connection, "offline");
1670                 emit_connections_signal(connection);
1671
1672                 g_dbus_unregister_interface(connection, element->path,
1673                                                 CONNMAN_CONNECTION_INTERFACE);
1674         }
1675
1676         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK)
1677                 g_dbus_unregister_interface(connection, element->path,
1678                                                 CONNMAN_NETWORK_INTERFACE);
1679
1680         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1681                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1682                 emit_devices_signal(connection);
1683
1684                 g_dbus_unregister_interface(connection, element->path,
1685                                                 CONNMAN_DEVICE_INTERFACE);
1686         }
1687
1688         g_dbus_unregister_interface(connection, element->path,
1689                                                 CONNMAN_ELEMENT_INTERFACE);
1690
1691         connman_element_unref(element);
1692
1693         return FALSE;
1694 }
1695
1696 static void unregister_element(gpointer data, gpointer user_data)
1697 {
1698         struct connman_element *element = data;
1699         GNode *node;
1700
1701         DBG("element %p name %s", element, element->name);
1702
1703         g_static_rw_lock_writer_lock(&element_lock);
1704
1705         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1706
1707         if (node != NULL)
1708                 g_node_traverse(node, G_POST_ORDER,
1709                                 G_TRAVERSE_ALL, -1, remove_element, NULL);
1710
1711         g_static_rw_lock_writer_unlock(&element_lock);
1712 }
1713
1714 void connman_element_unregister(struct connman_element *element)
1715 {
1716         DBG("element %p name %s", element, element->name);
1717
1718         unregister_element(element, NULL);
1719 }
1720
1721 static void unregister_children(gpointer data, gpointer user_data)
1722 {
1723         struct connman_element *element = data;
1724         GNode *node;
1725
1726         DBG("element %p name %s", element, element->name);
1727
1728         g_static_rw_lock_writer_lock(&element_lock);
1729
1730         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1731
1732         if (node != NULL)
1733                 g_node_traverse(node, G_POST_ORDER,
1734                                 G_TRAVERSE_ALL, -1, remove_element, element);
1735
1736         g_static_rw_lock_writer_unlock(&element_lock);
1737 }
1738
1739 void connman_element_unregister_children(struct connman_element *element)
1740 {
1741         DBG("element %p name %s", element, element->name);
1742
1743         unregister_children(element, NULL);
1744 }
1745
1746 static gboolean update_element(GNode *node, gpointer user_data)
1747 {
1748         struct connman_element *element = node->data;
1749
1750         DBG("element %p name %s", element, element->name);
1751
1752         if (element->driver && element->driver->update)
1753                 element->driver->update(element);
1754
1755         g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
1756                                 CONNMAN_MANAGER_INTERFACE, "ElementUpdated",
1757                                 DBUS_TYPE_OBJECT_PATH, &element->path,
1758                                                         DBUS_TYPE_INVALID);
1759
1760         return FALSE;
1761 }
1762
1763 void connman_element_update(struct connman_element *element)
1764 {
1765         GNode *node;
1766
1767         DBG("element %p name %s", element, element->name);
1768
1769         g_static_rw_lock_reader_lock(&element_lock);
1770
1771         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1772
1773         if (node != NULL)
1774                 g_node_traverse(node, G_PRE_ORDER,
1775                                 G_TRAVERSE_ALL, -1, update_element, NULL);
1776
1777         g_static_rw_lock_reader_unlock(&element_lock);
1778 }
1779
1780 int connman_element_set_enabled(struct connman_element *element,
1781                                                         gboolean enabled)
1782 {
1783         if (element->enabled == enabled)
1784                 return 0;
1785
1786         element->enabled = enabled;
1787
1788         connman_element_update(element);
1789
1790         return 0;
1791 }
1792
1793 int __connman_element_init(DBusConnection *conn, const char *device)
1794 {
1795         struct connman_element *element;
1796
1797         DBG("conn %p", conn);
1798
1799         connection = dbus_connection_ref(conn);
1800         if (connection == NULL)
1801                 return -EIO;
1802
1803         device_filter = g_strdup(device);
1804
1805         g_static_rw_lock_writer_lock(&element_lock);
1806
1807         element = connman_element_create("root");
1808
1809         element->path = g_strdup("/");
1810         element->type = CONNMAN_ELEMENT_TYPE_ROOT;
1811
1812         create_default_properties(element);
1813
1814         element_root = g_node_new(element);
1815
1816         g_static_rw_lock_writer_unlock(&element_lock);
1817
1818         __connman_device_init();
1819
1820         return 0;
1821 }
1822
1823 static gboolean free_driver(GNode *node, gpointer data)
1824 {
1825         struct connman_element *element = node->data;
1826
1827         DBG("element %p name %s", element, element->name);
1828
1829         if (element->driver) {
1830                 if (element->driver->remove)
1831                         element->driver->remove(element);
1832
1833                 __connman_element_lock(element);
1834                 element->driver = NULL;
1835                 __connman_element_unlock(element);
1836         }
1837
1838         return FALSE;
1839 }
1840
1841 static gboolean free_node(GNode *node, gpointer data)
1842 {
1843         struct connman_element *element = node->data;
1844
1845         DBG("element %p name %s", element, element->name);
1846
1847         if (g_node_depth(node) > 1)
1848                 unregister_element(element, NULL);
1849
1850         return FALSE;
1851 }
1852
1853 void __connman_element_cleanup(void)
1854 {
1855         DBG("");
1856
1857         __connman_device_cleanup();
1858
1859         g_static_rw_lock_writer_lock(&element_lock);
1860         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1861                                                         free_driver, NULL);
1862         g_static_rw_lock_writer_unlock(&element_lock);
1863
1864         g_static_rw_lock_writer_lock(&element_lock);
1865         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
1866                                                         free_node, NULL);
1867         g_static_rw_lock_writer_unlock(&element_lock);
1868
1869         g_static_rw_lock_writer_lock(&element_lock);
1870         g_node_destroy(element_root);
1871         element_root = NULL;
1872         g_static_rw_lock_writer_unlock(&element_lock);
1873
1874         g_free(device_filter);
1875
1876         dbus_connection_unref(connection);
1877 }