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