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