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

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2008  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <stdarg.h>
  28 #include <string.h>
  29
  30 #include <glib.h>
  31 #include <gdbus.h>
  32
  33 #include "connman.h"
  34
  35 static DBusConnection *connection;
  36
  37 static GNode *element_root = NULL;
  38 static GSList *driver_list = NULL;
  39 static gchar *device_filter = NULL;
  40
  41 static struct {
  42         enum connman_property_id id;
  43         int type;
  44         const char *name;
  45         const void *value;
  46 } propid_table[] = {
  47         { CONNMAN_PROPERTY_ID_IPV4_METHOD,
  48                 DBUS_TYPE_STRING, "IPv4.Method", "dhcp" },
  49         { CONNMAN_PROPERTY_ID_IPV4_ADDRESS,
  50                 DBUS_TYPE_STRING, "IPv4.Address" },
  51         { CONNMAN_PROPERTY_ID_IPV4_NETMASK,
  52                 DBUS_TYPE_STRING, "IPv4.Netmask" },
  53         { CONNMAN_PROPERTY_ID_IPV4_GATEWAY,
  54                 DBUS_TYPE_STRING, "IPv4.Gateway" },
  55         { CONNMAN_PROPERTY_ID_IPV4_NAMESERVER,
  56                 DBUS_TYPE_STRING, "IPv4.Nameserver" },
  57
  58         { CONNMAN_PROPERTY_ID_WIFI_SECURITY,
  59                 DBUS_TYPE_STRING, "WiFi.Security" },
  60         { CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE,
  61                 DBUS_TYPE_STRING, "WiFi.Passphrase" },
  62
  63         { }
  64 };
  65
  66 static int propid2type(enum connman_property_id id)
  67 {
  68         int i;
  69
  70         for (i = 0; propid_table[i].name; i++) {
  71                 if (propid_table[i].id == id)
  72                         return propid_table[i].type;
  73         }
  74
  75         return DBUS_TYPE_INVALID;
  76 }
  77
  78 static const char *propid2name(enum connman_property_id id)
  79 {
  80         int i;
  81
  82         for (i = 0; propid_table[i].name; i++) {
  83                 if (propid_table[i].id == id)
  84                         return propid_table[i].name;
  85         }
  86
  87         return NULL;
  88 }
  89
  90 static const char *type2string(enum connman_element_type type)
  91 {
  92         switch (type) {
  93         case CONNMAN_ELEMENT_TYPE_UNKNOWN:
  94                 return "unknown";
  95         case CONNMAN_ELEMENT_TYPE_ROOT:
  96                 return "root";
  97         case CONNMAN_ELEMENT_TYPE_PROFILE:
  98                 return "profile";
  99         case CONNMAN_ELEMENT_TYPE_DEVICE:
 100                 return "device";
 101         case CONNMAN_ELEMENT_TYPE_NETWORK:
 102                 return "network";
 103         case CONNMAN_ELEMENT_TYPE_SERVICE:
 104                 return "service";
 105         case CONNMAN_ELEMENT_TYPE_IPV4:
 106                 return "ipv4";
 107         case CONNMAN_ELEMENT_TYPE_IPV6:
 108                 return "ipv6";
 109         case CONNMAN_ELEMENT_TYPE_DHCP:
 110                 return "dhcp";
 111         case CONNMAN_ELEMENT_TYPE_BOOTP:
 112                 return "bootp";
 113         case CONNMAN_ELEMENT_TYPE_ZEROCONF:
 114                 return "zeroconf";
 115         case CONNMAN_ELEMENT_TYPE_CONNECTION:
 116                 return "connection";
 117         }
 118
 119         return NULL;
 120 }
 121
 122 static const char *subtype2string(enum connman_element_subtype type)
 123 {
 124         switch (type) {
 125         case CONNMAN_ELEMENT_SUBTYPE_UNKNOWN:
 126                 return "unknown";
 127         case CONNMAN_ELEMENT_SUBTYPE_FAKE:
 128                 return "fake";
 129         case CONNMAN_ELEMENT_SUBTYPE_NETWORK:
 130                 return "network";
 131         case CONNMAN_ELEMENT_SUBTYPE_ETHERNET:
 132                 return "ethernet";
 133         case CONNMAN_ELEMENT_SUBTYPE_WIFI:
 134                 return "wifi";
 135         case CONNMAN_ELEMENT_SUBTYPE_WIMAX:
 136                 return "wimax";
 137         case CONNMAN_ELEMENT_SUBTYPE_MODEM:
 138                 return "modem";
 139         case CONNMAN_ELEMENT_SUBTYPE_BLUETOOTH:
 140                 return "bluetooth";
 141         }
 142
 143         return NULL;
 144 }
 145
 146 const char *__connman_element_policy2string(enum connman_element_policy policy)
 147 {
 148         switch (policy) {
 149         case CONNMAN_ELEMENT_POLICY_UNKNOWN:
 150                 return "unknown";
 151         case CONNMAN_ELEMENT_POLICY_IGNORE:
 152                 return "ignore";
 153         case CONNMAN_ELEMENT_POLICY_AUTO:
 154                 return "auto";
 155         case CONNMAN_ELEMENT_POLICY_ASK:
 156                 return "ask";
 157         }
 158
 159         return NULL;
 160 }
 161
 162 enum connman_element_policy __connman_element_string2policy(const char *policy)
 163 {
 164         if (strcasecmp(policy, "ignore") == 0)
 165                 return CONNMAN_ELEMENT_POLICY_IGNORE;
 166         else if (strcasecmp(policy, "auto") == 0)
 167                 return CONNMAN_ELEMENT_POLICY_AUTO;
 168         else if (strcasecmp(policy, "ask") == 0)
 169                 return CONNMAN_ELEMENT_POLICY_ASK;
 170         else
 171                 return CONNMAN_ELEMENT_POLICY_UNKNOWN;
 172 }
 173
 174 const char *__connman_ipv4_method2string(enum connman_ipv4_method method)
 175 {
 176         switch (method) {
 177         case CONNMAN_IPV4_METHOD_UNKNOWN:
 178                 return "unknown";
 179         case CONNMAN_IPV4_METHOD_OFF:
 180                 return "off";
 181         case CONNMAN_IPV4_METHOD_STATIC:
 182                 return "static";
 183         case CONNMAN_IPV4_METHOD_DHCP:
 184                 return "dhcp";
 185         }
 186
 187         return "unknown";
 188 }
 189
 190 enum connman_ipv4_method __connman_ipv4_string2method(const char *method)
 191 {
 192         if (strcasecmp(method, "off") == 0)
 193                 return CONNMAN_IPV4_METHOD_OFF;
 194         else if (strcasecmp(method, "static") == 0)
 195                 return CONNMAN_IPV4_METHOD_STATIC;
 196         else if (strcasecmp(method, "dhcp") == 0)
 197                 return CONNMAN_IPV4_METHOD_DHCP;
 198         else
 199                 return CONNMAN_IPV4_METHOD_UNKNOWN;
 200 }
 201
 202 static void append_property(DBusMessageIter *dict,
 203                                 struct connman_property *property)
 204 {
 205         if (property->value == NULL)
 206                 return;
 207
 208         switch (property->type) {
 209         case DBUS_TYPE_ARRAY:
 210                 connman_dbus_dict_append_array(dict, property->name,
 211                         property->subtype, &property->value, property->size);
 212                 break;
 213         case DBUS_TYPE_STRING:
 214                 connman_dbus_dict_append_variant(dict, property->name,
 215                                         property->type, &property->value);
 216                 break;
 217         default:
 218                 connman_dbus_dict_append_variant(dict, property->name,
 219                                         property->type, property->value);
 220                 break;
 221         }
 222 }
 223
 224 static void add_common_properties(struct connman_element *element,
 225                                                 DBusMessageIter *dict)
 226 {
 227         const char *address = NULL, *netmask = NULL, *gateway = NULL;
 228         GSList *list;
 229
 230         connman_element_get_value(element,
 231                                 CONNMAN_PROPERTY_ID_IPV4_ADDRESS, &address);
 232         connman_element_get_value(element,
 233                                 CONNMAN_PROPERTY_ID_IPV4_NETMASK, &netmask);
 234         connman_element_get_value(element,
 235                                 CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
 236
 237         if (element->priority > 0)
 238                 connman_dbus_dict_append_variant(dict, "Priority",
 239                                         DBUS_TYPE_UINT16, &element->priority);
 240
 241         if (address != NULL)
 242                 connman_dbus_dict_append_variant(dict, "IPv4.Address",
 243                                                 DBUS_TYPE_STRING, &address);
 244         if (netmask != NULL)
 245                 connman_dbus_dict_append_variant(dict, "IPv4.Netmask",
 246                                                 DBUS_TYPE_STRING, &netmask);
 247         if (gateway != NULL)
 248                 connman_dbus_dict_append_variant(dict, "IPv4.Gateway",
 249                                                 DBUS_TYPE_STRING, &gateway);
 250
 251         if (element->wifi.security != NULL) {
 252                 const char *passphrase = "";
 253
 254                 connman_dbus_dict_append_variant(dict, "WiFi.Security",
 255                                 DBUS_TYPE_STRING, &element->wifi.security);
 256
 257                 if (element->wifi.passphrase != NULL)
 258                         passphrase = element->wifi.passphrase;
 259
 260                 connman_dbus_dict_append_variant(dict, "WiFi.Passphrase",
 261                                 DBUS_TYPE_STRING, &passphrase);
 262         }
 263
 264         __connman_element_lock(element);
 265
 266         for (list = element->properties; list; list = list->next) {
 267                 struct connman_property *property = list->data;
 268
 269                 append_property(dict, property);
 270         }
 271
 272         __connman_element_unlock(element);
 273 }
 274
 275 static void set_common_property(struct connman_element *element,
 276                                 const char *name, DBusMessageIter *value)
 277 {
 278         GSList *list;
 279
 280         if (g_str_equal(name, "Priority") == TRUE) {
 281                 dbus_message_iter_get_basic(value, &element->priority);
 282                 return;
 283         }
 284
 285         __connman_element_lock(element);
 286
 287         for (list = element->properties; list; list = list->next) {
 288                 struct connman_property *property = list->data;
 289                 const char *str;
 290
 291                 if (g_str_equal(property->name, name) == FALSE)
 292                         continue;
 293
 294                 if (property->flags & CONNMAN_PROPERTY_FLAG_STATIC)
 295                         continue;
 296
 297                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
 298
 299                 if (property->type == DBUS_TYPE_STRING) {
 300                         dbus_message_iter_get_basic(value, &str);
 301                         g_free(property->value);
 302                         property->value = g_strdup(str);
 303                 } else
 304                         property->value = NULL;
 305         }
 306
 307         __connman_element_unlock(element);
 308 }
 309
 310 static void emit_enabled_signal(DBusConnection *conn,
 311                                         struct connman_element *element)
 312 {
 313         DBusMessage *signal;
 314         DBusMessageIter entry, value;
 315         const char *iface, *key;
 316
 317         DBG("conn %p", conn);
 318
 319         if (element == NULL)
 320                 return;
 321
 322         switch (element->type) {
 323         case CONNMAN_ELEMENT_TYPE_DEVICE:
 324                 iface = CONNMAN_DEVICE_INTERFACE;
 325                 key = "Powered";
 326                 break;
 327         case CONNMAN_ELEMENT_TYPE_NETWORK:
 328                 iface = CONNMAN_NETWORK_INTERFACE;
 329                 key = "Connected";
 330                 break;
 331         default:
 332                 return;
 333         }
 334
 335         signal = dbus_message_new_signal(element->path,
 336                                                 iface, "PropertyChanged");
 337         if (signal == NULL)
 338                 return;
 339
 340         dbus_message_iter_init_append(signal, &entry);
 341
 342         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 343
 344         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
 345                                         DBUS_TYPE_BOOLEAN_AS_STRING, &value);
 346         dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN,
 347                                                         &element->enabled);
 348         dbus_message_iter_close_container(&entry, &value);
 349
 350         g_dbus_send_message(conn, signal);
 351 }
 352
 353 static DBusMessage *do_update(DBusConnection *conn,
 354                                         DBusMessage *msg, void *data)
 355 {
 356         struct connman_element *element = data;
 357
 358         DBG("conn %p", conn);
 359
 360         if (element->enabled == FALSE)
 361                 return __connman_error_failed(msg);
 362
 363         if (element->driver && element->driver->update) {
 364                 DBG("Calling update callback");
 365                 if (element->driver->update(element) < 0)
 366                         return __connman_error_failed(msg);
 367
 368         }
 369
 370         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 371 }
 372
 373 static DBusMessage *do_enable(DBusConnection *conn,
 374                                         DBusMessage *msg, void *data)
 375 {
 376         struct connman_element *element = data;
 377
 378         DBG("conn %p", conn);
 379
 380         if (element->enabled == TRUE)
 381                 return __connman_error_failed(msg);
 382
 383         if (element->driver && element->driver->enable) {
 384                 DBG("Calling enable callback");
 385                 if (element->driver->enable(element) < 0)
 386                         return __connman_error_failed(msg);
 387         }
 388
 389         element->enabled = TRUE;
 390
 391         emit_enabled_signal(connection, element);
 392
 393         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 394 }
 395
 396 static DBusMessage *do_disable(DBusConnection *conn,
 397                                         DBusMessage *msg, void *data)
 398 {
 399         struct connman_element *element = data;
 400
 401         DBG("conn %p", conn);
 402
 403         if (element->enabled == FALSE)
 404                 return __connman_error_failed(msg);
 405
 406         if (element->driver && element->driver->disable) {
 407                 DBG("Calling disable callback");
 408                 if (element->driver->disable(element) < 0)
 409                         return __connman_error_failed(msg);
 410         }
 411
 412         element->enabled = FALSE;
 413
 414         emit_enabled_signal(connection, element);
 415
 416         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 417 }
 418
 419 static void append_networks(struct connman_element *element,
 420                                                 DBusMessageIter *entry)
 421 {
 422         DBusMessageIter value, iter;
 423         const char *key = "Networks";
 424
 425         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 426
 427         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
 428                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
 429                                                                 &value);
 430
 431         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
 432                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
 433
 434         __connman_element_list(element, CONNMAN_ELEMENT_TYPE_NETWORK, &iter);
 435
 436         dbus_message_iter_close_container(&value, &iter);
 437
 438         dbus_message_iter_close_container(entry, &value);
 439 }
 440
 441 static DBusMessage *device_get_properties(DBusConnection *conn,
 442                                         DBusMessage *msg, void *data)
 443 {
 444         struct connman_element *element = data;
 445         DBusMessage *reply;
 446         DBusMessageIter array, dict, entry;
 447         const char *str;
 448
 449         DBG("conn %p", conn);
 450
 451         reply = dbus_message_new_method_return(msg);
 452         if (reply == NULL)
 453                 return NULL;
 454
 455         dbus_message_iter_init_append(reply, &array);
 456
 457         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 458                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 459                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 460                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 461
 462         str = subtype2string(element->subtype);
 463         if (str != NULL)
 464                 connman_dbus_dict_append_variant(&dict, "Type",
 465                                                 DBUS_TYPE_STRING, &str);
 466
 467         str = __connman_element_policy2string(element->policy);
 468         if (str != NULL)
 469                 connman_dbus_dict_append_variant(&dict, "Policy",
 470                                                 DBUS_TYPE_STRING, &str);
 471
 472         connman_dbus_dict_append_variant(&dict, "Powered",
 473                                         DBUS_TYPE_BOOLEAN, &element->enabled);
 474
 475         if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIFI ||
 476                         element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIMAX) {
 477                 dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
 478                                                                 NULL, &entry);
 479                 append_networks(element, &entry);
 480                 dbus_message_iter_close_container(&dict, &entry);
 481         }
 482
 483         add_common_properties(element, &dict);
 484
 485         dbus_message_iter_close_container(&array, &dict);
 486
 487         return reply;
 488 }
 489
 490 static DBusMessage *device_set_property(DBusConnection *conn,
 491                                         DBusMessage *msg, void *data)
 492 {
 493         struct connman_element *element = data;
 494         DBusMessageIter iter, value;
 495         const char *name;
 496
 497         DBG("conn %p", conn);
 498
 499         if (dbus_message_iter_init(msg, &iter) == FALSE)
 500                 return __connman_error_invalid_arguments(msg);
 501
 502         dbus_message_iter_get_basic(&iter, &name);
 503         dbus_message_iter_next(&iter);
 504         dbus_message_iter_recurse(&iter, &value);
 505
 506         if (__connman_security_check_privileges(msg) < 0)
 507                 return __connman_error_permission_denied(msg);
 508
 509         if (g_str_equal(name, "Powered") == TRUE) {
 510                 dbus_bool_t powered;
 511
 512                 dbus_message_iter_get_basic(&value, &powered);
 513
 514                 if (powered == TRUE)
 515                         do_enable(conn, msg, data);
 516                 else
 517                         do_disable(conn, msg, data);
 518         } else
 519                 set_common_property(element, name, &value);
 520
 521         __connman_element_store(element);
 522
 523         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 524 }
 525
 526 static int parse_network_dict(DBusMessageIter *iter, const char **ssid,
 527                                 const char **security, const char **passphrase)
 528 {
 529         while (dbus_message_iter_get_arg_type(iter) == DBUS_TYPE_DICT_ENTRY) {
 530                 DBusMessageIter entry, value;
 531                 const char *key;
 532
 533                 dbus_message_iter_recurse(iter, &entry);
 534                 dbus_message_iter_get_basic(&entry, &key);
 535
 536                 dbus_message_iter_next(&entry);
 537                 dbus_message_iter_recurse(&entry, &value);
 538
 539                 switch (dbus_message_iter_get_arg_type(&value)) {
 540                 case DBUS_TYPE_STRING:
 541                         if (g_str_equal(key, "WiFi.SSID") == TRUE)
 542                                 dbus_message_iter_get_basic(&value, ssid);
 543                         else if (g_str_equal(key, "WiFi.Security") == TRUE)
 544                                 dbus_message_iter_get_basic(&value, security);
 545                         else if (g_str_equal(key, "WiFi.Passphrase") == TRUE)
 546                                 dbus_message_iter_get_basic(&value, passphrase);
 547                         break;
 548                 }
 549
 550                 dbus_message_iter_next(iter);
 551         }
 552
 553         return 0;
 554 }
 555
 556 static DBusMessage *device_create_network(DBusConnection *conn,
 557                                         DBusMessage *msg, void *data)
 558 {
 559         struct connman_element *element = data;
 560         struct connman_element *network;
 561         DBusMessageIter iter, array;
 562         const char *ssid = NULL, *security = NULL, *passphrase = NULL;
 563
 564         DBG("conn %p", conn);
 565
 566         if (dbus_message_iter_init(msg, &iter) == FALSE)
 567                 return __connman_error_invalid_arguments(msg);
 568
 569         dbus_message_iter_recurse(&iter, &array);
 570         parse_network_dict(&array, &ssid, &security, &passphrase);
 571         if (ssid == NULL)
 572                 return __connman_error_invalid_arguments(msg);
 573
 574         DBG("ssid %s security %s passphrase %s", ssid, security, passphrase);
 575
 576         network = connman_element_create(ssid);
 577
 578         network->type = CONNMAN_ELEMENT_TYPE_NETWORK;
 579         network->index = element->index;
 580
 581         network->remember = TRUE;
 582
 583         connman_element_add_static_property(network, "Name",
 584                                                 DBUS_TYPE_STRING, &ssid);
 585
 586         connman_element_add_static_array_property(element, "WiFi.SSID",
 587                                         DBUS_TYPE_BYTE, &ssid, strlen(ssid));
 588
 589         network->wifi.security = g_strdup(security);
 590         network->wifi.passphrase = g_strdup(passphrase);
 591
 592         connman_element_register(network, element);
 593
 594         return g_dbus_create_reply(msg, DBUS_TYPE_OBJECT_PATH, &network->path,
 595                                                         DBUS_TYPE_INVALID);
 596 }
 597
 598 static DBusMessage *device_remove_network(DBusConnection *conn,
 599                                         DBusMessage *msg, void *data)
 600 {
 601         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 602 }
 603
 604 static DBusMessage *network_get_properties(DBusConnection *conn,
 605                                         DBusMessage *msg, void *data)
 606 {
 607         struct connman_element *element = data;
 608         DBusMessage *reply;
 609         DBusMessageIter array, dict;
 610         const char *str;
 611
 612         DBG("conn %p", conn);
 613
 614         reply = dbus_message_new_method_return(msg);
 615         if (reply == NULL)
 616                 return NULL;
 617
 618         dbus_message_iter_init_append(reply, &array);
 619
 620         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 621                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 622                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 623                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 624
 625         str = __connman_element_policy2string(element->policy);
 626         if (str != NULL)
 627                 connman_dbus_dict_append_variant(&dict, "Policy",
 628                                                 DBUS_TYPE_STRING, &str);
 629
 630         connman_dbus_dict_append_variant(&dict, "Available",
 631                                         DBUS_TYPE_BOOLEAN, &element->available);
 632
 633         connman_dbus_dict_append_variant(&dict, "Connected",
 634                                         DBUS_TYPE_BOOLEAN, &element->enabled);
 635
 636         connman_dbus_dict_append_variant(&dict, "Remember",
 637                                         DBUS_TYPE_BOOLEAN, &element->remember);
 638
 639         add_common_properties(element, &dict);
 640
 641         dbus_message_iter_close_container(&array, &dict);
 642
 643         return reply;
 644 }
 645
 646 static DBusMessage *network_set_property(DBusConnection *conn,
 647                                         DBusMessage *msg, void *data)
 648 {
 649         struct connman_element *element = data;
 650         DBusMessageIter iter;
 651         DBusMessageIter value;
 652         const char *name;
 653
 654         DBG("conn %p", conn);
 655
 656         if (dbus_message_iter_init(msg, &iter) == FALSE)
 657                 return __connman_error_invalid_arguments(msg);
 658
 659         dbus_message_iter_get_basic(&iter, &name);
 660         dbus_message_iter_next(&iter);
 661         dbus_message_iter_recurse(&iter, &value);
 662
 663         if (__connman_security_check_privileges(msg) < 0)
 664                 return __connman_error_permission_denied(msg);
 665
 666         if (g_str_equal(name, "Remember") == TRUE) {
 667                 dbus_message_iter_get_basic(&value, &element->remember);
 668         } else if (g_str_equal(name, "WiFi.Passphrase") == TRUE) {
 669                 const char *str;
 670
 671                 dbus_message_iter_get_basic(&value, &str);
 672                 g_free(element->wifi.passphrase);
 673                 element->wifi.passphrase = g_strdup(str);
 674         } else
 675                 set_common_property(element, name, &value);
 676
 677         __connman_element_store(element);
 678
 679         return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 680 }
 681
 682 static DBusMessage *get_connection_properties(DBusConnection *conn,
 683                                         DBusMessage *msg, void *data)
 684 {
 685         struct connman_element *element = data;
 686         DBusMessage *reply;
 687         DBusMessageIter array, dict;
 688
 689         DBG("conn %p", conn);
 690
 691         reply = dbus_message_new_method_return(msg);
 692         if (reply == NULL)
 693                 return NULL;
 694
 695         dbus_message_iter_init_append(reply, &array);
 696
 697         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 698                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 699                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 700                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 701
 702         add_common_properties(element, &dict);
 703
 704         dbus_message_iter_close_container(&array, &dict);
 705
 706         return reply;
 707 }
 708
 709 static GDBusMethodTable device_methods[] = {
 710         { "GetProperties", "",      "a{sv}", device_get_properties },
 711         { "SetProperty",   "sv",    "",      device_set_property   },
 712         { "CreateNetwork", "a{sv}", "o",     device_create_network },
 713         { "RemoveNetwork", "o",     "",      device_remove_network },
 714         { "ProposeScan",   "",      "",      do_update             },
 715         { },
 716 };
 717
 718 static GDBusMethodTable network_methods[] = {
 719         { "GetProperties", "",   "a{sv}", network_get_properties },
 720         { "SetProperty",   "sv", "",      network_set_property   },
 721         { "Connect",       "",   "",      do_enable              },
 722         { "Disconnect",    "",   "",      do_disable             },
 723         { },
 724 };
 725
 726 static GDBusMethodTable connection_methods[] = {
 727         { "GetProperties", "",   "a{sv}", get_connection_properties },
 728         { },
 729 };
 730
 731 static GDBusSignalTable element_signals[] = {
 732         { "PropertyChanged", "sv" },
 733         { },
 734 };
 735
 736 struct append_filter {
 737         enum connman_element_type type;
 738         DBusMessageIter *iter;
 739 };
 740
 741 static gboolean append_path(GNode *node, gpointer user_data)
 742 {
 743         struct connman_element *element = node->data;
 744         struct append_filter *filter = user_data;
 745
 746         DBG("element %p name %s", element, element->name);
 747
 748         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 749                 return FALSE;
 750
 751         if (filter->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 752                                         filter->type != element->type)
 753                 return FALSE;
 754
 755         if (filter->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 756                         element->subtype == CONNMAN_ELEMENT_SUBTYPE_NETWORK)
 757                 return FALSE;
 758
 759         dbus_message_iter_append_basic(filter->iter,
 760                                 DBUS_TYPE_OBJECT_PATH, &element->path);
 761
 762         return FALSE;
 763 }
 764
 765 void __connman_element_list(struct connman_element *element,
 766                                         enum connman_element_type type,
 767                                                         DBusMessageIter *iter)
 768 {
 769         struct append_filter filter = { type, iter };
 770         GNode *node;
 771
 772         DBG("");
 773
 774         if (element != NULL) {
 775                 node = g_node_find(element_root, G_PRE_ORDER,
 776                                                 G_TRAVERSE_ALL, element);
 777                 if (node == NULL)
 778                         return;
 779         } else
 780                 node = element_root;
 781
 782         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 783                                                 append_path, &filter);
 784 }
 785
 786 struct count_data {
 787         enum connman_element_type type;
 788         int count;
 789 };
 790
 791 static gboolean count_element(GNode *node, gpointer user_data)
 792 {
 793         struct connman_element *element = node->data;
 794         struct count_data *data = user_data;
 795
 796         DBG("element %p name %s", element, element->name);
 797
 798         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 799                 return FALSE;
 800
 801         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 802                                         data->type != element->type)
 803                 return FALSE;
 804
 805         data->count++;
 806
 807         return FALSE;
 808 }
 809
 810 int __connman_element_count(struct connman_element *element,
 811                                         enum connman_element_type type)
 812 {
 813         struct count_data data = { type, 0 };
 814         GNode *node;
 815
 816         DBG("");
 817
 818         if (element != NULL) {
 819                 node = g_node_find(element_root, G_PRE_ORDER,
 820                                                 G_TRAVERSE_ALL, element);
 821                 if (node == NULL)
 822                         return 0;
 823         } else
 824                 node = element_root;
 825
 826         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 827                                                 count_element, &data);
 828
 829         return data.count;
 830 }
 831
 832 static gint compare_priority(gconstpointer a, gconstpointer b)
 833 {
 834         const struct connman_driver *driver1 = a;
 835         const struct connman_driver *driver2 = b;
 836
 837         return driver2->priority - driver1->priority;
 838 }
 839
 840 static gboolean match_driver(struct connman_element *element,
 841                                         struct connman_driver *driver)
 842 {
 843         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 844                 return FALSE;
 845
 846         if (element->type != driver->type &&
 847                         driver->type != CONNMAN_ELEMENT_TYPE_UNKNOWN)
 848                 return FALSE;
 849
 850         if (element->subtype == driver->subtype ||
 851                         driver->subtype == CONNMAN_ELEMENT_SUBTYPE_UNKNOWN)
 852                 return TRUE;
 853
 854         return FALSE;
 855 }
 856
 857 static void enable_element(struct connman_element *element)
 858 {
 859         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 860                 return;
 861
 862         if (element->policy != CONNMAN_ELEMENT_POLICY_AUTO)
 863                 return;
 864
 865         if (element->driver && element->driver->enable) {
 866                 if (element->driver->enable(element) == 0) {
 867                         element->enabled = TRUE;
 868                         emit_enabled_signal(connection, element);
 869                 }
 870         }
 871 }
 872
 873 static gboolean probe_driver(GNode *node, gpointer data)
 874 {
 875         struct connman_element *element = node->data;
 876         struct connman_driver *driver = data;
 877
 878         DBG("element %p name %s", element, element->name);
 879
 880         if (!element->driver && match_driver(element, driver) == TRUE) {
 881                 if (driver->probe(element) < 0)
 882                         return FALSE;
 883
 884                 __connman_element_lock(element);
 885                 element->driver = driver;
 886                 __connman_element_unlock(element);
 887
 888                 enable_element(element);
 889         }
 890
 891         return FALSE;
 892 }
 893
 894 void __connman_driver_rescan(struct connman_driver *driver)
 895 {
 896         DBG("driver %p name %s", driver, driver->name);
 897
 898         if (!driver->probe)
 899                 return;
 900
 901         if (element_root != NULL)
 902                 g_node_traverse(element_root, G_PRE_ORDER,
 903                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 904 }
 905
 906 /**
 907  * connman_driver_register:
 908  * @driver: driver definition
 909  *
 910  * Register a new driver
 911  *
 912  * Returns: %0 on success
 913  */
 914 int connman_driver_register(struct connman_driver *driver)
 915 {
 916         DBG("driver %p name %s", driver, driver->name);
 917
 918         if (driver->type == CONNMAN_ELEMENT_TYPE_ROOT)
 919                 return -EINVAL;
 920
 921         if (!driver->probe)
 922                 return -EINVAL;
 923
 924         driver_list = g_slist_insert_sorted(driver_list, driver,
 925                                                         compare_priority);
 926
 927         if (element_root != NULL)
 928                 g_node_traverse(element_root, G_PRE_ORDER,
 929                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 930
 931         return 0;
 932 }
 933
 934 static void disable_element(struct connman_element *element)
 935 {
 936         if (element->policy != CONNMAN_ELEMENT_POLICY_AUTO)
 937                 return;
 938
 939         if (element->enabled == FALSE)
 940                 return;
 941
 942         if (element->driver && element->driver->disable) {
 943                 if (element->driver->disable(element) == 0) {
 944                         element->enabled = FALSE;
 945                         emit_enabled_signal(connection, element);
 946                 }
 947         }
 948 }
 949
 950 static gboolean remove_driver(GNode *node, gpointer data)
 951 {
 952         struct connman_element *element = node->data;
 953         struct connman_driver *driver = data;
 954
 955         DBG("element %p name %s", element, element->name);
 956
 957         if (element->driver == driver) {
 958                 disable_element(element);
 959
 960                 if (driver->remove)
 961                         driver->remove(element);
 962
 963                 __connman_element_lock(element);
 964                 element->driver = NULL;
 965                 __connman_element_unlock(element);
 966         }
 967
 968         return FALSE;
 969 }
 970
 971 /**
 972  * connman_driver_unregister:
 973  * @driver: driver definition
 974  *
 975  * Remove a previously registered driver
 976  */
 977 void connman_driver_unregister(struct connman_driver *driver)
 978 {
 979         DBG("driver %p name %s", driver, driver->name);
 980
 981         driver_list = g_slist_remove(driver_list, driver);
 982
 983         if (element_root != NULL)
 984                 g_node_traverse(element_root, G_POST_ORDER,
 985                                 G_TRAVERSE_ALL, -1, remove_driver, driver);
 986 }
 987
 988 /**
 989  * connman_element_create:
 990  * @name: element name
 991  *
 992  * Allocate a new element and assign the given #name to it. If the name
 993  * is #NULL, it will be later on created based on the element type.
 994  *
 995  * Returns: a newly-allocated #connman_element structure
 996  */
 997 struct connman_element *connman_element_create(const char *name)
 998 {
 999         struct connman_element *element;
1000
1001         element = g_try_new0(struct connman_element, 1);
1002         if (element == NULL)
1003                 return NULL;
1004
1005         DBG("element %p", element);
1006
1007         element->refcount = 1;
1008
1009         element->name    = g_strdup(name);
1010         element->type    = CONNMAN_ELEMENT_TYPE_UNKNOWN;
1011         element->subtype = CONNMAN_ELEMENT_SUBTYPE_UNKNOWN;
1012         element->state   = CONNMAN_ELEMENT_STATE_CLOSED;
1013         element->policy  = CONNMAN_ELEMENT_POLICY_AUTO;
1014         element->index   = -1;
1015         element->enabled = FALSE;
1016
1017         return element;
1018 }
1019
1020 struct connman_element *connman_element_ref(struct connman_element *element)
1021 {
1022         DBG("element %p name %s refcount %d", element, element->name,
1023                                 g_atomic_int_get(&element->refcount) + 1);
1024
1025         g_atomic_int_inc(&element->refcount);
1026
1027         return element;
1028 }
1029
1030 static void free_properties(struct connman_element *element)
1031 {
1032         GSList *list;
1033
1034         DBG("element %p name %s", element, element->name);
1035
1036         __connman_element_lock(element);
1037
1038         for (list = element->properties; list; list = list->next) {
1039                 struct connman_property *property = list->data;
1040
1041                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1042                         g_free(property->value);
1043
1044                 g_free(property->name);
1045                 g_free(property);
1046         }
1047
1048         g_slist_free(element->properties);
1049
1050         element->properties = NULL;
1051
1052         __connman_element_unlock(element);
1053 }
1054
1055 void connman_element_unref(struct connman_element *element)
1056 {
1057         DBG("element %p name %s refcount %d", element, element->name,
1058                                 g_atomic_int_get(&element->refcount) - 1);
1059
1060         if (g_atomic_int_dec_and_test(&element->refcount) == TRUE) {
1061                 free_properties(element);
1062                 g_free(element->ipv4.address);
1063                 g_free(element->ipv4.netmask);
1064                 g_free(element->ipv4.gateway);
1065                 g_free(element->ipv4.network);
1066                 g_free(element->ipv4.broadcast);
1067                 g_free(element->ipv4.nameserver);
1068                 g_free(element->devname);
1069                 g_free(element->path);
1070                 g_free(element->name);
1071                 g_free(element);
1072         }
1073 }
1074
1075 int connman_element_add_static_property(struct connman_element *element,
1076                                 const char *name, int type, const void *value)
1077 {
1078         struct connman_property *property;
1079
1080         DBG("element %p name %s", element, element->name);
1081
1082         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
1083                 return -EINVAL;
1084
1085         property = g_try_new0(struct connman_property, 1);
1086         if (property == NULL)
1087                 return -ENOMEM;
1088
1089         property->flags = CONNMAN_PROPERTY_FLAG_STATIC;
1090         property->id    = CONNMAN_PROPERTY_ID_INVALID;
1091         property->name  = g_strdup(name);
1092         property->type  = type;
1093
1094         DBG("name %s type %d value %p", name, type, value);
1095
1096         switch (type) {
1097         case DBUS_TYPE_STRING:
1098                 property->value = g_strdup(*((const char **) value));
1099                 break;
1100         case DBUS_TYPE_BYTE:
1101                 property->value = g_try_malloc(1);
1102                 if (property->value != NULL)
1103                         memcpy(property->value, value, 1);
1104                 break;
1105         }
1106
1107         __connman_element_lock(element);
1108         element->properties = g_slist_append(element->properties, property);
1109         __connman_element_unlock(element);
1110
1111         return 0;
1112 }
1113
1114 static void emit_property_changed(DBusConnection *conn,
1115                                 struct connman_element *element,
1116                                 const char *name, int type, const void *data)
1117 {
1118         DBusMessage *signal;
1119         DBusMessageIter entry, value;
1120         const char *iface, *sig;
1121
1122         DBG("conn %p", conn);
1123
1124         switch (element->type) {
1125         case CONNMAN_ELEMENT_TYPE_DEVICE:
1126                 iface = CONNMAN_DEVICE_INTERFACE;
1127                 break;
1128         case CONNMAN_ELEMENT_TYPE_NETWORK:
1129                 iface = CONNMAN_NETWORK_INTERFACE;
1130                 break;
1131         default:
1132                 return;
1133         }
1134
1135         signal = dbus_message_new_signal(element->path,
1136                                                 iface, "PropertyChanged");
1137         if (signal == NULL)
1138                 return;
1139
1140         dbus_message_iter_init_append(signal, &entry);
1141
1142         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &name);
1143
1144         switch (type) {
1145         case DBUS_TYPE_STRING:
1146                 sig = DBUS_TYPE_STRING_AS_STRING;
1147                 break;
1148         case DBUS_TYPE_BYTE:
1149                 sig = DBUS_TYPE_BYTE_AS_STRING;
1150                 break;
1151         default:
1152                 sig = DBUS_TYPE_VARIANT_AS_STRING;
1153                 break;
1154         }
1155
1156         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
1157                                                         sig, &value);
1158         dbus_message_iter_append_basic(&value, type, data);
1159         dbus_message_iter_close_container(&entry, &value);
1160
1161         g_dbus_send_message(conn, signal);
1162 }
1163
1164 int connman_element_set_static_property(struct connman_element *element,
1165                                 const char *name, int type, const void *value)
1166 {
1167         GSList *list;
1168
1169         DBG("element %p name %s", element, element->name);
1170
1171         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
1172                 return -EINVAL;
1173
1174         __connman_element_lock(element);
1175
1176         for (list = element->properties; list; list = list->next) {
1177                 struct connman_property *property = list->data;
1178
1179                 if (g_str_equal(property->name, name) == FALSE)
1180                         continue;
1181
1182                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1183                         continue;
1184
1185                 property->type = type;
1186                 g_free(property->value);
1187
1188                 switch (type) {
1189                 case DBUS_TYPE_STRING:
1190                         property->value = g_strdup(*((const char **) value));
1191                         break;
1192                 case DBUS_TYPE_BYTE:
1193                         property->value = g_try_malloc(1);
1194                         if (property->value != NULL)
1195                                 memcpy(property->value, value, 1);
1196                         break;
1197                 }
1198         }
1199
1200         __connman_element_unlock(element);
1201
1202         emit_property_changed(connection, element, name, type, value);
1203
1204         return 0;
1205 }
1206
1207 int connman_element_add_static_array_property(struct connman_element *element,
1208                         const char *name, int type, const void *value, int len)
1209 {
1210         struct connman_property *property;
1211
1212         DBG("element %p name %s", element, element->name);
1213
1214         if (type != DBUS_TYPE_BYTE)
1215                 return -EINVAL;
1216
1217         property = g_try_new0(struct connman_property, 1);
1218         if (property == NULL)
1219                 return -ENOMEM;
1220
1221         property->flags   = CONNMAN_PROPERTY_FLAG_STATIC;
1222         property->id      = CONNMAN_PROPERTY_ID_INVALID;
1223         property->name    = g_strdup(name);
1224         property->type    = DBUS_TYPE_ARRAY;
1225         property->subtype = type;
1226
1227         DBG("name %s type %d value %p", name, type, value);
1228
1229         switch (type) {
1230         case DBUS_TYPE_BYTE:
1231                 property->value = g_try_malloc(len);
1232                 if (property->value != NULL) {
1233                         memcpy(property->value,
1234                                 *((const unsigned char **) value), len);
1235                         property->size = len;
1236                 }
1237                 break;
1238         }
1239
1240         __connman_element_lock(element);
1241         element->properties = g_slist_append(element->properties, property);
1242         __connman_element_unlock(element);
1243
1244         return 0;
1245 }
1246
1247 static void *get_reference_value(struct connman_element *element,
1248                                                 enum connman_property_id id)
1249 {
1250         GSList *list;
1251
1252         DBG("element %p name %s", element, element->name);
1253
1254         for (list = element->properties; list; list = list->next) {
1255                 struct connman_property *property = list->data;
1256
1257                 if (property->id != id)
1258                         continue;
1259
1260                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1261                         return property->value;
1262         }
1263
1264         if (element->parent == NULL)
1265                 return NULL;
1266
1267         return get_reference_value(element->parent, id);
1268 }
1269
1270 static void set_reference_properties(struct connman_element *element)
1271 {
1272         GSList *list;
1273
1274         DBG("element %p name %s", element, element->name);
1275
1276         for (list = element->properties; list; list = list->next) {
1277                 struct connman_property *property = list->data;
1278
1279                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1280                         continue;
1281
1282                 property->value = get_reference_value(element->parent,
1283                                                                 property->id);
1284         }
1285 }
1286
1287 static struct connman_property *create_property(struct connman_element *element,
1288                                                 enum connman_property_id id)
1289 {
1290         struct connman_property *property;
1291         GSList *list;
1292
1293         DBG("element %p name %s", element, element->name);
1294
1295         __connman_element_lock(element);
1296
1297         for (list = element->properties; list; list = list->next) {
1298                 property = list->data;
1299
1300                 if (property->id == id)
1301                         goto unlock;
1302         }
1303
1304         property = g_try_new0(struct connman_property, 1);
1305         if (property == NULL)
1306                 goto unlock;
1307
1308         property->flags = CONNMAN_PROPERTY_FLAG_REFERENCE;
1309         property->id    = id;
1310         property->name  = g_strdup(propid2name(id));
1311         property->type  = propid2type(id);
1312
1313         if (property->name == NULL) {
1314                 g_free(property);
1315                 property = NULL;
1316                 goto unlock;
1317         }
1318
1319         element->properties = g_slist_append(element->properties, property);
1320
1321 unlock:
1322         __connman_element_unlock(element);
1323
1324         return property;
1325 }
1326
1327 static void create_default_properties(struct connman_element *element)
1328 {
1329         struct connman_property *property;
1330         int i;
1331
1332         DBG("element %p name %s", element, element->name);
1333
1334         for (i = 0; propid_table[i].name; i++) {
1335                 DBG("property %s", propid_table[i].name);
1336
1337                 property = create_property(element, propid_table[i].id);
1338
1339                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
1340
1341                 if (propid_table[i].type != DBUS_TYPE_STRING)
1342                         continue;
1343
1344                 if (propid_table[i].value)
1345                         property->value = g_strdup(propid_table[i].value);
1346                 else
1347                         property->value = g_strdup("");
1348         }
1349 }
1350
1351 static int define_properties_valist(struct connman_element *element,
1352                                                                 va_list args)
1353 {
1354         enum connman_property_id id;
1355
1356         DBG("element %p name %s", element, element->name);
1357
1358         id = va_arg(args, enum connman_property_id);
1359
1360         while (id != CONNMAN_PROPERTY_ID_INVALID) {
1361
1362                 DBG("property %d", id);
1363
1364                 create_property(element, id);
1365
1366                 id = va_arg(args, enum connman_property_id);
1367         }
1368
1369         return 0;
1370 }
1371
1372 /**
1373  * connman_element_define_properties:
1374  * @element: an element
1375  * @varargs: list of property identifiers
1376  *
1377  * Define the valid properties for an element.
1378  *
1379  * Returns: %0 on success
1380  */
1381 int connman_element_define_properties(struct connman_element *element, ...)
1382 {
1383         va_list args;
1384         int err;
1385
1386         DBG("element %p name %s", element, element->name);
1387
1388         va_start(args, element);
1389
1390         err = define_properties_valist(element, args);
1391
1392         va_end(args);
1393
1394         return err;
1395 }
1396
1397 int connman_element_create_property(struct connman_element *element,
1398                                                 const char *name, int type)
1399 {
1400         return -EIO;
1401 }
1402
1403 int connman_element_set_property(struct connman_element *element,
1404                                 enum connman_property_id id, const void *value)
1405 {
1406         switch (id) {
1407         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1408                 __connman_element_lock(element);
1409                 g_free(element->ipv4.address);
1410                 element->ipv4.address = g_strdup(*((const char **) value));
1411                 __connman_element_unlock(element);
1412                 break;
1413         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1414                 __connman_element_lock(element);
1415                 g_free(element->ipv4.netmask);
1416                 element->ipv4.netmask = g_strdup(*((const char **) value));
1417                 __connman_element_unlock(element);
1418                 break;
1419         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1420                 __connman_element_lock(element);
1421                 g_free(element->ipv4.gateway);
1422                 element->ipv4.gateway = g_strdup(*((const char **) value));
1423                 __connman_element_unlock(element);
1424                 break;
1425         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1426                 __connman_element_lock(element);
1427                 g_free(element->ipv4.nameserver);
1428                 element->ipv4.nameserver = g_strdup(*((const char **) value));
1429                 __connman_element_unlock(element);
1430                 break;
1431         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1432                 __connman_element_lock(element);
1433                 g_free(element->wifi.security);
1434                 element->wifi.security = g_strdup(*((const char **) value));
1435                 __connman_element_unlock(element);
1436                 break;
1437         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1438                 __connman_element_lock(element);
1439                 g_free(element->wifi.passphrase);
1440                 element->wifi.passphrase = g_strdup(*((const char **) value));
1441                 __connman_element_unlock(element);
1442                 break;
1443         default:
1444                 return -EINVAL;
1445         }
1446
1447         return 0;
1448 }
1449
1450 int connman_element_get_value(struct connman_element *element,
1451                                 enum connman_property_id id, void *value)
1452 {
1453         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1454                 return -EINVAL;
1455
1456         switch (id) {
1457         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1458                 if (element->ipv4.address == NULL)
1459                         return connman_element_get_value(element->parent,
1460                                                                 id, value);
1461                 __connman_element_lock(element);
1462                 *((char **) value) = element->ipv4.address;
1463                 __connman_element_unlock(element);
1464                 break;
1465         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1466                 if (element->ipv4.netmask == NULL)
1467                         return connman_element_get_value(element->parent,
1468                                                                 id, value);
1469                 __connman_element_lock(element);
1470                 *((char **) value) = element->ipv4.netmask;
1471                 __connman_element_unlock(element);
1472                 break;
1473         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1474                 if (element->ipv4.gateway == NULL)
1475                         return connman_element_get_value(element->parent,
1476                                                                 id, value);
1477                 __connman_element_lock(element);
1478                 *((char **) value) = element->ipv4.gateway;
1479                 __connman_element_unlock(element);
1480                 break;
1481         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1482                 if (element->ipv4.nameserver == NULL)
1483                         return connman_element_get_value(element->parent,
1484                                                                 id, value);
1485                 __connman_element_lock(element);
1486                 *((char **) value) = element->ipv4.nameserver;
1487                 __connman_element_unlock(element);
1488                 break;
1489         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1490                 if (element->wifi.security == NULL)
1491                         return connman_element_get_value(element->parent,
1492                                                                 id, value);
1493                 __connman_element_lock(element);
1494                 *((char **) value) = element->wifi.security;
1495                 __connman_element_unlock(element);
1496                 break;
1497         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1498                 if (element->wifi.passphrase == NULL)
1499                         return connman_element_get_value(element->parent,
1500                                                                 id, value);
1501                 __connman_element_lock(element);
1502                 *((char **) value) = element->wifi.passphrase;
1503                 __connman_element_unlock(element);
1504                 break;
1505         default:
1506                 return -EINVAL;
1507         }
1508
1509         return 0;
1510 }
1511
1512 gboolean connman_element_get_static_property(struct connman_element *element,
1513                                                 const char *name, void *value)
1514 {
1515         GSList *list;
1516         gboolean found = FALSE;
1517
1518         DBG("element %p name %s", element, element->name);
1519
1520         __connman_element_lock(element);
1521
1522         for (list = element->properties; list; list = list->next) {
1523                 struct connman_property *property = list->data;
1524
1525                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1526                         continue;
1527
1528                 if (g_str_equal(property->name, name) == TRUE) {
1529                         switch (property->type) {
1530                         case DBUS_TYPE_STRING:
1531                                 *((char **) value) = property->value;
1532                                 found = TRUE;
1533                                 break;
1534                         }
1535                         break;
1536                 }
1537         }
1538
1539         __connman_element_unlock(element);
1540
1541         return found;
1542 }
1543
1544 gboolean connman_element_get_static_array_property(struct connman_element *element,
1545                                         const char *name, void *value, int *len)
1546 {
1547         GSList *list;
1548         gboolean found = FALSE;
1549
1550         DBG("element %p name %s", element, element->name);
1551
1552         __connman_element_lock(element);
1553
1554         for (list = element->properties; list; list = list->next) {
1555                 struct connman_property *property = list->data;
1556
1557                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1558                         continue;
1559
1560                 if (g_str_equal(property->name, name) == TRUE) {
1561                         *((char **) value) = property->value;
1562                         *len = property->size;
1563                         found = TRUE;
1564                         break;
1565                 }
1566         }
1567
1568         __connman_element_unlock(element);
1569
1570         return found;
1571 }
1572
1573 gboolean connman_element_match_static_property(struct connman_element *element,
1574                                         const char *name, const void *value)
1575 {
1576         GSList *list;
1577         gboolean result = FALSE;
1578
1579         DBG("element %p name %s", element, element->name);
1580
1581         __connman_element_lock(element);
1582
1583         for (list = element->properties; list; list = list->next) {
1584                 struct connman_property *property = list->data;
1585
1586                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1587                         continue;
1588
1589                 if (g_str_equal(property->name, name) == FALSE)
1590                         continue;
1591
1592                 if (property->type == DBUS_TYPE_STRING)
1593                         result = g_str_equal(property->value,
1594                                                 *((const char **) value));
1595
1596                 if (result == TRUE)
1597                         break;
1598         }
1599
1600         __connman_element_unlock(element);
1601
1602         return result;
1603 }
1604
1605 static void append_devices(DBusMessageIter *entry)
1606 {
1607         DBusMessageIter value, iter;
1608         const char *key = "Devices";
1609
1610         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1611
1612         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1613                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1614                                                                 &value);
1615
1616         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1617                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1618         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_DEVICE, &iter);
1619         dbus_message_iter_close_container(&value, &iter);
1620
1621         dbus_message_iter_close_container(entry, &value);
1622 }
1623
1624 static void emit_devices_signal(DBusConnection *conn)
1625 {
1626         DBusMessage *signal;
1627         DBusMessageIter entry;
1628
1629         DBG("conn %p", conn);
1630
1631         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1632                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1633         if (signal == NULL)
1634                 return;
1635
1636         dbus_message_iter_init_append(signal, &entry);
1637
1638         append_devices(&entry);
1639
1640         g_dbus_send_message(conn, signal);
1641 }
1642
1643 static void emit_networks_signal(DBusConnection *conn,
1644                                         struct connman_element *device)
1645 {
1646         DBusMessage *signal;
1647         DBusMessageIter entry;
1648
1649         DBG("conn %p", conn);
1650
1651         if (device == NULL)
1652                 return;
1653
1654         signal = dbus_message_new_signal(device->path,
1655                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
1656         if (signal == NULL)
1657                 return;
1658
1659         dbus_message_iter_init_append(signal, &entry);
1660
1661         append_networks(device, &entry);
1662
1663         g_dbus_send_message(conn, signal);
1664 }
1665
1666 static void append_connections(DBusMessageIter *entry)
1667 {
1668         DBusMessageIter value, iter;
1669         const char *key = "Connections";
1670
1671         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1672
1673         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1674                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1675                                                                 &value);
1676
1677         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1678                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1679         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
1680         dbus_message_iter_close_container(&value, &iter);
1681
1682         dbus_message_iter_close_container(entry, &value);
1683 }
1684
1685 static void emit_connections_signal(DBusConnection *conn)
1686 {
1687         DBusMessage *signal;
1688         DBusMessageIter entry;
1689
1690         DBG("conn %p", conn);
1691
1692         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1693                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1694         if (signal == NULL)
1695                 return;
1696
1697         dbus_message_iter_init_append(signal, &entry);
1698
1699         append_connections(&entry);
1700
1701         g_dbus_send_message(conn, signal);
1702 }
1703
1704 static void append_state(DBusMessageIter *entry, const char *state)
1705 {
1706         DBusMessageIter value;
1707         const char *key = "State";
1708
1709         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1710
1711         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1712                                         DBUS_TYPE_STRING_AS_STRING, &value);
1713         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &state);
1714         dbus_message_iter_close_container(entry, &value);
1715 }
1716
1717 static void emit_state_change(DBusConnection *conn, const char *state)
1718 {
1719         DBusMessage *signal;
1720         DBusMessageIter entry;
1721
1722         DBG("conn %p", conn);
1723
1724         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1725                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1726         if (signal == NULL)
1727                 return;
1728
1729         dbus_message_iter_init_append(signal, &entry);
1730
1731         append_state(&entry, state);
1732
1733         g_dbus_send_message(conn, signal);
1734 }
1735
1736 static void register_element(gpointer data, gpointer user_data)
1737 {
1738         struct connman_element *element = data;
1739         const gchar *basepath;
1740         GSList *list;
1741         GNode *node;
1742
1743         __connman_element_lock(element);
1744
1745         if (element->parent) {
1746                 node = g_node_find(element_root, G_PRE_ORDER,
1747                                         G_TRAVERSE_ALL, element->parent);
1748                 basepath = element->parent->path;
1749
1750                 if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_UNKNOWN)
1751                         element->subtype = element->parent->subtype;
1752         } else {
1753                 element->parent = element_root->data;
1754
1755                 node = element_root;
1756                 basepath = "";
1757         }
1758
1759         element->path = g_strdup_printf("%s/%s", basepath, element->name);
1760
1761         set_reference_properties(element);
1762
1763         __connman_element_unlock(element);
1764
1765         DBG("element %p path %s", element, element->path);
1766
1767         __connman_element_load(element);
1768
1769         g_node_append_data(node, element);
1770
1771         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1772                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1773                 if (g_dbus_register_interface(connection, element->path,
1774                                         CONNMAN_DEVICE_INTERFACE,
1775                                         device_methods, element_signals,
1776                                         NULL, element, NULL) == FALSE)
1777                         connman_error("Failed to register %s device",
1778                                                                 element->path);
1779                 else
1780                         emit_devices_signal(connection);
1781         }
1782
1783         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1784                 if (g_dbus_register_interface(connection, element->path,
1785                                         CONNMAN_NETWORK_INTERFACE,
1786                                         network_methods, element_signals,
1787                                         NULL, element, NULL) == FALSE)
1788                         connman_error("Failed to register %s network",
1789                                                                 element->path);
1790                 else
1791                         emit_networks_signal(connection, element->parent);
1792         }
1793
1794         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1795                 if (g_dbus_register_interface(connection, element->path,
1796                                         CONNMAN_CONNECTION_INTERFACE,
1797                                         connection_methods, element_signals,
1798                                         NULL, element, NULL) == FALSE)
1799                         connman_error("Failed to register %s connection",
1800                                                                 element->path);
1801                 else {
1802                         emit_connections_signal(connection);
1803                         emit_state_change(connection, "online");
1804                 }
1805         }
1806
1807         __connman_element_store(element);
1808
1809         for (list = driver_list; list; list = list->next) {
1810                 struct connman_driver *driver = list->data;
1811
1812                 if (match_driver(element, driver) == FALSE)
1813                         continue;
1814
1815                 DBG("driver %p name %s", driver, driver->name);
1816
1817                 if (driver->probe(element) == 0) {
1818                         __connman_element_lock(element);
1819                         element->driver = driver;
1820                         __connman_element_unlock(element);
1821
1822                         enable_element(element);
1823                         break;
1824                 }
1825         }
1826 }
1827
1828 /**
1829  * connman_element_register:
1830  * @element: the element to register
1831  * @parent: the parent to register the element with
1832  *
1833  * Register an element with the core. It will be register under the given
1834  * parent of if %NULL is provided under the root element.
1835  *
1836  * Returns: %0 on success
1837  */
1838 int connman_element_register(struct connman_element *element,
1839                                         struct connman_element *parent)
1840 {
1841         DBG("element %p name %s parent %p", element, element->name, parent);
1842
1843         if (element->devname == NULL)
1844                 element->devname = g_strdup(element->name);
1845
1846         if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1847                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1848                 if (g_pattern_match_simple(device_filter,
1849                                                 element->devname) == FALSE) {
1850                         DBG("ignoring %s [%s] device", element->name,
1851                                                         element->devname);
1852                         return -EPERM;
1853                 }
1854         }
1855
1856         if (connman_element_ref(element) == NULL)
1857                 return -EINVAL;
1858
1859         __connman_element_lock(element);
1860
1861         if (element->name == NULL) {
1862                 element->name = g_strdup(type2string(element->type));
1863                 if (element->name == NULL) {
1864                         __connman_element_unlock(element);
1865                         return -EINVAL;
1866                 }
1867         }
1868
1869         element->parent = parent;
1870
1871         __connman_element_unlock(element);
1872
1873         register_element(element, NULL);
1874
1875         return 0;
1876 }
1877
1878 static gboolean remove_element(GNode *node, gpointer user_data)
1879 {
1880         struct connman_element *element = node->data;
1881         struct connman_element *root = user_data;
1882
1883         DBG("element %p name %s", element, element->name);
1884
1885         if (element == root)
1886                 return FALSE;
1887
1888         if (element->driver) {
1889                 disable_element(element);
1890
1891                 if (element->driver->remove)
1892                         element->driver->remove(element);
1893
1894                 __connman_element_lock(element);
1895                 element->driver = NULL;
1896                 __connman_element_unlock(element);
1897         }
1898
1899         if (node != NULL) {
1900                 g_node_unlink(node);
1901                 g_node_destroy(node);
1902         }
1903
1904         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1905                 emit_state_change(connection, "offline");
1906                 emit_connections_signal(connection);
1907
1908                 g_dbus_unregister_interface(connection, element->path,
1909                                                 CONNMAN_CONNECTION_INTERFACE);
1910         }
1911
1912         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1913                 emit_networks_signal(connection, element->parent);
1914
1915                 g_dbus_unregister_interface(connection, element->path,
1916                                                 CONNMAN_NETWORK_INTERFACE);
1917         }
1918
1919         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1920                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1921                 emit_devices_signal(connection);
1922
1923                 g_dbus_unregister_interface(connection, element->path,
1924                                                 CONNMAN_DEVICE_INTERFACE);
1925         }
1926
1927         connman_element_unref(element);
1928
1929         return FALSE;
1930 }
1931
1932 void connman_element_unregister(struct connman_element *element)
1933 {
1934         GNode *node;
1935
1936         DBG("element %p name %s", element, element->name);
1937
1938         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1939
1940         if (node != NULL)
1941                 g_node_traverse(node, G_POST_ORDER,
1942                                 G_TRAVERSE_ALL, -1, remove_element, NULL);
1943 }
1944
1945 void connman_element_unregister_children(struct connman_element *element)
1946 {
1947         GNode *node;
1948
1949         DBG("element %p name %s", element, element->name);
1950
1951         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1952
1953         if (node != NULL)
1954                 g_node_traverse(node, G_POST_ORDER,
1955                                 G_TRAVERSE_ALL, -1, remove_element, element);
1956 }
1957
1958 static gboolean update_element(GNode *node, gpointer user_data)
1959 {
1960         struct connman_element *element = node->data;
1961
1962         DBG("element %p name %s", element, element->name);
1963
1964         if (element->driver && element->driver->update)
1965                 element->driver->update(element);
1966
1967         return FALSE;
1968 }
1969
1970 void connman_element_update(struct connman_element *element)
1971 {
1972         GNode *node;
1973
1974         DBG("element %p name %s", element, element->name);
1975
1976         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1977
1978         if (node != NULL)
1979                 g_node_traverse(node, G_PRE_ORDER,
1980                                 G_TRAVERSE_ALL, -1, update_element, NULL);
1981 }
1982
1983 int connman_element_set_enabled(struct connman_element *element,
1984                                                         gboolean enabled)
1985 {
1986         if (element->enabled == enabled)
1987                 return 0;
1988
1989         element->enabled = enabled;
1990
1991         emit_enabled_signal(connection, element);
1992
1993         return 0;
1994 }
1995
1996 int __connman_element_init(DBusConnection *conn, const char *device)
1997 {
1998         struct connman_element *element;
1999
2000         DBG("conn %p", conn);
2001
2002         connection = dbus_connection_ref(conn);
2003         if (connection == NULL)
2004                 return -EIO;
2005
2006         device_filter = g_strdup(device);
2007
2008         element = connman_element_create("root");
2009
2010         element->path = g_strdup("/");
2011         element->type = CONNMAN_ELEMENT_TYPE_ROOT;
2012
2013         create_default_properties(element);
2014
2015         element_root = g_node_new(element);
2016
2017         __connman_device_init();
2018
2019         return 0;
2020 }
2021
2022 static gboolean free_driver(GNode *node, gpointer data)
2023 {
2024         struct connman_element *element = node->data;
2025
2026         DBG("element %p name %s", element, element->name);
2027
2028         if (element->driver) {
2029                 disable_element(element);
2030
2031                 if (element->driver->remove)
2032                         element->driver->remove(element);
2033
2034                 __connman_element_lock(element);
2035                 element->driver = NULL;
2036                 __connman_element_unlock(element);
2037         }
2038
2039         return FALSE;
2040 }
2041
2042 static gboolean free_node(GNode *node, gpointer data)
2043 {
2044         struct connman_element *element = node->data;
2045
2046         DBG("element %p name %s", element, element->name);
2047
2048         if (g_node_depth(node) > 1)
2049                 connman_element_unregister(element);
2050
2051         return FALSE;
2052 }
2053
2054 void __connman_element_cleanup(void)
2055 {
2056         DBG("");
2057
2058         __connman_device_cleanup();
2059
2060         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
2061                                                         free_driver, NULL);
2062
2063         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
2064                                                         free_node, NULL);
2065
2066         g_node_destroy(element_root);
2067         element_root = NULL;
2068
2069         g_free(device_filter);
2070
2071         dbus_connection_unref(connection);
2072 }