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

   1 /*
   2  *
   3  *  Connection Manager
   4  *
   5  *  Copyright (C) 2007-2008  Intel Corporation. All rights reserved.
   6  *
   7  *  This program is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License version 2 as
   9  *  published by the Free Software Foundation.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *  GNU General Public License for more details.
  15  *
  16  *  You should have received a copy of the GNU General Public License
  17  *  along with this program; if not, write to the Free Software
  18  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  *
  20  */
  21
  22 #ifdef HAVE_CONFIG_H
  23 #include <config.h>
  24 #endif
  25
  26 #include <errno.h>
  27 #include <stdarg.h>
  28 #include <string.h>
  29
  30 #include <glib.h>
  31 #include <gdbus.h>
  32
  33 #include "connman.h"
  34
  35 static DBusConnection *connection;
  36
  37 static GNode *element_root = NULL;
  38 static GSList *driver_list = NULL;
  39 static gchar *device_filter = NULL;
  40
  41 static 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 *connection_get_properties(DBusConnection *conn,
 683                                         DBusMessage *msg, void *data)
 684 {
 685         struct connman_element *element = data;
 686         DBusMessage *reply;
 687         DBusMessageIter array, dict;
 688         const char *str;
 689
 690         DBG("conn %p", conn);
 691
 692         reply = dbus_message_new_method_return(msg);
 693         if (reply == NULL)
 694                 return NULL;
 695
 696         dbus_message_iter_init_append(reply, &array);
 697
 698         dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
 699                         DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
 700                         DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
 701                         DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 702
 703         str = subtype2string(element->subtype);
 704         if (str != NULL)
 705                 connman_dbus_dict_append_variant(&dict, "Type",
 706                                                 DBUS_TYPE_STRING, &str);
 707
 708         if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIFI ||
 709                         element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIMAX)
 710                 connman_dbus_dict_append_variant(&dict, "Strength",
 711                                         DBUS_TYPE_BYTE, &element->strength);
 712
 713         add_common_properties(element, &dict);
 714
 715         dbus_message_iter_close_container(&array, &dict);
 716
 717         return reply;
 718 }
 719
 720 static GDBusMethodTable device_methods[] = {
 721         { "GetProperties", "",      "a{sv}", device_get_properties },
 722         { "SetProperty",   "sv",    "",      device_set_property   },
 723         { "CreateNetwork", "a{sv}", "o",     device_create_network },
 724         { "RemoveNetwork", "o",     "",      device_remove_network },
 725         { "ProposeScan",   "",      "",      do_update             },
 726         { },
 727 };
 728
 729 static GDBusMethodTable network_methods[] = {
 730         { "GetProperties", "",   "a{sv}", network_get_properties },
 731         { "SetProperty",   "sv", "",      network_set_property   },
 732         { "Connect",       "",   "",      do_enable              },
 733         { "Disconnect",    "",   "",      do_disable             },
 734         { },
 735 };
 736
 737 static GDBusMethodTable connection_methods[] = {
 738         { "GetProperties", "",   "a{sv}", connection_get_properties },
 739         { },
 740 };
 741
 742 static GDBusSignalTable element_signals[] = {
 743         { "PropertyChanged", "sv" },
 744         { },
 745 };
 746
 747 struct append_filter {
 748         enum connman_element_type type;
 749         DBusMessageIter *iter;
 750 };
 751
 752 static gboolean append_path(GNode *node, gpointer user_data)
 753 {
 754         struct connman_element *element = node->data;
 755         struct append_filter *filter = user_data;
 756
 757         DBG("element %p name %s", element, element->name);
 758
 759         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 760                 return FALSE;
 761
 762         if (filter->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 763                                         filter->type != element->type)
 764                 return FALSE;
 765
 766         if (filter->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
 767                         element->subtype == CONNMAN_ELEMENT_SUBTYPE_NETWORK)
 768                 return FALSE;
 769
 770         dbus_message_iter_append_basic(filter->iter,
 771                                 DBUS_TYPE_OBJECT_PATH, &element->path);
 772
 773         return FALSE;
 774 }
 775
 776 void __connman_element_list(struct connman_element *element,
 777                                         enum connman_element_type type,
 778                                                         DBusMessageIter *iter)
 779 {
 780         struct append_filter filter = { type, iter };
 781         GNode *node;
 782
 783         DBG("");
 784
 785         if (element != NULL) {
 786                 node = g_node_find(element_root, G_PRE_ORDER,
 787                                                 G_TRAVERSE_ALL, element);
 788                 if (node == NULL)
 789                         return;
 790         } else
 791                 node = element_root;
 792
 793         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 794                                                 append_path, &filter);
 795 }
 796
 797 struct count_data {
 798         enum connman_element_type type;
 799         int count;
 800 };
 801
 802 static gboolean count_element(GNode *node, gpointer user_data)
 803 {
 804         struct connman_element *element = node->data;
 805         struct count_data *data = user_data;
 806
 807         DBG("element %p name %s", element, element->name);
 808
 809         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 810                 return FALSE;
 811
 812         if (data->type != CONNMAN_ELEMENT_TYPE_UNKNOWN &&
 813                                         data->type != element->type)
 814                 return FALSE;
 815
 816         data->count++;
 817
 818         return FALSE;
 819 }
 820
 821 int __connman_element_count(struct connman_element *element,
 822                                         enum connman_element_type type)
 823 {
 824         struct count_data data = { type, 0 };
 825         GNode *node;
 826
 827         DBG("");
 828
 829         if (element != NULL) {
 830                 node = g_node_find(element_root, G_PRE_ORDER,
 831                                                 G_TRAVERSE_ALL, element);
 832                 if (node == NULL)
 833                         return 0;
 834         } else
 835                 node = element_root;
 836
 837         g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
 838                                                 count_element, &data);
 839
 840         return data.count;
 841 }
 842
 843 static gint compare_priority(gconstpointer a, gconstpointer b)
 844 {
 845         const struct connman_driver *driver1 = a;
 846         const struct connman_driver *driver2 = b;
 847
 848         return driver2->priority - driver1->priority;
 849 }
 850
 851 static gboolean match_driver(struct connman_element *element,
 852                                         struct connman_driver *driver)
 853 {
 854         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
 855                 return FALSE;
 856
 857         if (element->type != driver->type &&
 858                         driver->type != CONNMAN_ELEMENT_TYPE_UNKNOWN)
 859                 return FALSE;
 860
 861         if (element->subtype == driver->subtype ||
 862                         driver->subtype == CONNMAN_ELEMENT_SUBTYPE_UNKNOWN)
 863                 return TRUE;
 864
 865         return FALSE;
 866 }
 867
 868 static void enable_element(struct connman_element *element)
 869 {
 870         if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
 871                 return;
 872
 873         if (element->policy != CONNMAN_ELEMENT_POLICY_AUTO)
 874                 return;
 875
 876         if (element->driver && element->driver->enable) {
 877                 if (element->driver->enable(element) == 0) {
 878                         element->enabled = TRUE;
 879                         emit_enabled_signal(connection, element);
 880                 }
 881         }
 882 }
 883
 884 static gboolean probe_driver(GNode *node, gpointer data)
 885 {
 886         struct connman_element *element = node->data;
 887         struct connman_driver *driver = data;
 888
 889         DBG("element %p name %s", element, element->name);
 890
 891         if (!element->driver && match_driver(element, driver) == TRUE) {
 892                 if (driver->probe(element) < 0)
 893                         return FALSE;
 894
 895                 __connman_element_lock(element);
 896                 element->driver = driver;
 897                 __connman_element_unlock(element);
 898
 899                 enable_element(element);
 900         }
 901
 902         return FALSE;
 903 }
 904
 905 void __connman_driver_rescan(struct connman_driver *driver)
 906 {
 907         DBG("driver %p name %s", driver, driver->name);
 908
 909         if (!driver->probe)
 910                 return;
 911
 912         if (element_root != NULL)
 913                 g_node_traverse(element_root, G_PRE_ORDER,
 914                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 915 }
 916
 917 /**
 918  * connman_driver_register:
 919  * @driver: driver definition
 920  *
 921  * Register a new driver
 922  *
 923  * Returns: %0 on success
 924  */
 925 int connman_driver_register(struct connman_driver *driver)
 926 {
 927         DBG("driver %p name %s", driver, driver->name);
 928
 929         if (driver->type == CONNMAN_ELEMENT_TYPE_ROOT)
 930                 return -EINVAL;
 931
 932         if (!driver->probe)
 933                 return -EINVAL;
 934
 935         driver_list = g_slist_insert_sorted(driver_list, driver,
 936                                                         compare_priority);
 937
 938         if (element_root != NULL)
 939                 g_node_traverse(element_root, G_PRE_ORDER,
 940                                 G_TRAVERSE_ALL, -1, probe_driver, driver);
 941
 942         return 0;
 943 }
 944
 945 static void disable_element(struct connman_element *element)
 946 {
 947         if (element->policy != CONNMAN_ELEMENT_POLICY_AUTO)
 948                 return;
 949
 950         if (element->enabled == FALSE)
 951                 return;
 952
 953         if (element->driver && element->driver->disable) {
 954                 if (element->driver->disable(element) == 0) {
 955                         element->enabled = FALSE;
 956                         emit_enabled_signal(connection, element);
 957                 }
 958         }
 959 }
 960
 961 static gboolean remove_driver(GNode *node, gpointer data)
 962 {
 963         struct connman_element *element = node->data;
 964         struct connman_driver *driver = data;
 965
 966         DBG("element %p name %s", element, element->name);
 967
 968         if (element->driver == driver) {
 969                 disable_element(element);
 970
 971                 if (driver->remove)
 972                         driver->remove(element);
 973
 974                 __connman_element_lock(element);
 975                 element->driver = NULL;
 976                 __connman_element_unlock(element);
 977         }
 978
 979         return FALSE;
 980 }
 981
 982 /**
 983  * connman_driver_unregister:
 984  * @driver: driver definition
 985  *
 986  * Remove a previously registered driver
 987  */
 988 void connman_driver_unregister(struct connman_driver *driver)
 989 {
 990         DBG("driver %p name %s", driver, driver->name);
 991
 992         driver_list = g_slist_remove(driver_list, driver);
 993
 994         if (element_root != NULL)
 995                 g_node_traverse(element_root, G_POST_ORDER,
 996                                 G_TRAVERSE_ALL, -1, remove_driver, driver);
 997 }
 998
 999 /**
1000  * connman_element_create:
1001  * @name: element name
1002  *
1003  * Allocate a new element and assign the given #name to it. If the name
1004  * is #NULL, it will be later on created based on the element type.
1005  *
1006  * Returns: a newly-allocated #connman_element structure
1007  */
1008 struct connman_element *connman_element_create(const char *name)
1009 {
1010         struct connman_element *element;
1011
1012         element = g_try_new0(struct connman_element, 1);
1013         if (element == NULL)
1014                 return NULL;
1015
1016         DBG("element %p", element);
1017
1018         element->refcount = 1;
1019
1020         element->name    = g_strdup(name);
1021         element->type    = CONNMAN_ELEMENT_TYPE_UNKNOWN;
1022         element->subtype = CONNMAN_ELEMENT_SUBTYPE_UNKNOWN;
1023         element->state   = CONNMAN_ELEMENT_STATE_CLOSED;
1024         element->policy  = CONNMAN_ELEMENT_POLICY_AUTO;
1025         element->index   = -1;
1026         element->enabled = FALSE;
1027
1028         return element;
1029 }
1030
1031 struct connman_element *connman_element_ref(struct connman_element *element)
1032 {
1033         DBG("element %p name %s refcount %d", element, element->name,
1034                                 g_atomic_int_get(&element->refcount) + 1);
1035
1036         g_atomic_int_inc(&element->refcount);
1037
1038         return element;
1039 }
1040
1041 static void free_properties(struct connman_element *element)
1042 {
1043         GSList *list;
1044
1045         DBG("element %p name %s", element, element->name);
1046
1047         __connman_element_lock(element);
1048
1049         for (list = element->properties; list; list = list->next) {
1050                 struct connman_property *property = list->data;
1051
1052                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1053                         g_free(property->value);
1054
1055                 g_free(property->name);
1056                 g_free(property);
1057         }
1058
1059         g_slist_free(element->properties);
1060
1061         element->properties = NULL;
1062
1063         __connman_element_unlock(element);
1064 }
1065
1066 void connman_element_unref(struct connman_element *element)
1067 {
1068         DBG("element %p name %s refcount %d", element, element->name,
1069                                 g_atomic_int_get(&element->refcount) - 1);
1070
1071         if (g_atomic_int_dec_and_test(&element->refcount) == TRUE) {
1072                 free_properties(element);
1073                 g_free(element->ipv4.address);
1074                 g_free(element->ipv4.netmask);
1075                 g_free(element->ipv4.gateway);
1076                 g_free(element->ipv4.network);
1077                 g_free(element->ipv4.broadcast);
1078                 g_free(element->ipv4.nameserver);
1079                 g_free(element->devname);
1080                 g_free(element->path);
1081                 g_free(element->name);
1082                 g_free(element);
1083         }
1084 }
1085
1086 int connman_element_add_static_property(struct connman_element *element,
1087                                 const char *name, int type, const void *value)
1088 {
1089         struct connman_property *property;
1090
1091         DBG("element %p name %s", element, element->name);
1092
1093         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
1094                 return -EINVAL;
1095
1096         property = g_try_new0(struct connman_property, 1);
1097         if (property == NULL)
1098                 return -ENOMEM;
1099
1100         property->flags = CONNMAN_PROPERTY_FLAG_STATIC;
1101         property->id    = CONNMAN_PROPERTY_ID_INVALID;
1102         property->name  = g_strdup(name);
1103         property->type  = type;
1104
1105         DBG("name %s type %d value %p", name, type, value);
1106
1107         switch (type) {
1108         case DBUS_TYPE_STRING:
1109                 property->value = g_strdup(*((const char **) value));
1110                 break;
1111         case DBUS_TYPE_BYTE:
1112                 property->value = g_try_malloc(1);
1113                 if (property->value != NULL)
1114                         memcpy(property->value, value, 1);
1115                 break;
1116         }
1117
1118         __connman_element_lock(element);
1119         element->properties = g_slist_append(element->properties, property);
1120         __connman_element_unlock(element);
1121
1122         return 0;
1123 }
1124
1125 static void emit_property_changed(DBusConnection *conn,
1126                                 struct connman_element *element,
1127                                 const char *name, int type, const void *data)
1128 {
1129         DBusMessage *signal;
1130         DBusMessageIter entry, value;
1131         const char *iface, *sig;
1132
1133         DBG("conn %p", conn);
1134
1135         switch (element->type) {
1136         case CONNMAN_ELEMENT_TYPE_DEVICE:
1137                 iface = CONNMAN_DEVICE_INTERFACE;
1138                 break;
1139         case CONNMAN_ELEMENT_TYPE_NETWORK:
1140                 iface = CONNMAN_NETWORK_INTERFACE;
1141                 break;
1142         default:
1143                 return;
1144         }
1145
1146         signal = dbus_message_new_signal(element->path,
1147                                                 iface, "PropertyChanged");
1148         if (signal == NULL)
1149                 return;
1150
1151         dbus_message_iter_init_append(signal, &entry);
1152
1153         dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &name);
1154
1155         switch (type) {
1156         case DBUS_TYPE_STRING:
1157                 sig = DBUS_TYPE_STRING_AS_STRING;
1158                 break;
1159         case DBUS_TYPE_BYTE:
1160                 sig = DBUS_TYPE_BYTE_AS_STRING;
1161                 break;
1162         default:
1163                 sig = DBUS_TYPE_VARIANT_AS_STRING;
1164                 break;
1165         }
1166
1167         dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
1168                                                         sig, &value);
1169         dbus_message_iter_append_basic(&value, type, data);
1170         dbus_message_iter_close_container(&entry, &value);
1171
1172         g_dbus_send_message(conn, signal);
1173 }
1174
1175 int connman_element_set_static_property(struct connman_element *element,
1176                                 const char *name, int type, const void *value)
1177 {
1178         GSList *list;
1179
1180         DBG("element %p name %s", element, element->name);
1181
1182         if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
1183                 return -EINVAL;
1184
1185         __connman_element_lock(element);
1186
1187         for (list = element->properties; list; list = list->next) {
1188                 struct connman_property *property = list->data;
1189
1190                 if (g_str_equal(property->name, name) == FALSE)
1191                         continue;
1192
1193                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1194                         continue;
1195
1196                 property->type = type;
1197                 g_free(property->value);
1198
1199                 switch (type) {
1200                 case DBUS_TYPE_STRING:
1201                         property->value = g_strdup(*((const char **) value));
1202                         break;
1203                 case DBUS_TYPE_BYTE:
1204                         property->value = g_try_malloc(1);
1205                         if (property->value != NULL)
1206                                 memcpy(property->value, value, 1);
1207                         break;
1208                 }
1209         }
1210
1211         __connman_element_unlock(element);
1212
1213         emit_property_changed(connection, element, name, type, value);
1214
1215         return 0;
1216 }
1217
1218 int connman_element_add_static_array_property(struct connman_element *element,
1219                         const char *name, int type, const void *value, int len)
1220 {
1221         struct connman_property *property;
1222
1223         DBG("element %p name %s", element, element->name);
1224
1225         if (type != DBUS_TYPE_BYTE)
1226                 return -EINVAL;
1227
1228         property = g_try_new0(struct connman_property, 1);
1229         if (property == NULL)
1230                 return -ENOMEM;
1231
1232         property->flags   = CONNMAN_PROPERTY_FLAG_STATIC;
1233         property->id      = CONNMAN_PROPERTY_ID_INVALID;
1234         property->name    = g_strdup(name);
1235         property->type    = DBUS_TYPE_ARRAY;
1236         property->subtype = type;
1237
1238         DBG("name %s type %d value %p", name, type, value);
1239
1240         switch (type) {
1241         case DBUS_TYPE_BYTE:
1242                 property->value = g_try_malloc(len);
1243                 if (property->value != NULL) {
1244                         memcpy(property->value,
1245                                 *((const unsigned char **) value), len);
1246                         property->size = len;
1247                 }
1248                 break;
1249         }
1250
1251         __connman_element_lock(element);
1252         element->properties = g_slist_append(element->properties, property);
1253         __connman_element_unlock(element);
1254
1255         return 0;
1256 }
1257
1258 static void *get_reference_value(struct connman_element *element,
1259                                                 enum connman_property_id id)
1260 {
1261         GSList *list;
1262
1263         DBG("element %p name %s", element, element->name);
1264
1265         for (list = element->properties; list; list = list->next) {
1266                 struct connman_property *property = list->data;
1267
1268                 if (property->id != id)
1269                         continue;
1270
1271                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1272                         return property->value;
1273         }
1274
1275         if (element->parent == NULL)
1276                 return NULL;
1277
1278         return get_reference_value(element->parent, id);
1279 }
1280
1281 static void set_reference_properties(struct connman_element *element)
1282 {
1283         GSList *list;
1284
1285         DBG("element %p name %s", element, element->name);
1286
1287         for (list = element->properties; list; list = list->next) {
1288                 struct connman_property *property = list->data;
1289
1290                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
1291                         continue;
1292
1293                 property->value = get_reference_value(element->parent,
1294                                                                 property->id);
1295         }
1296 }
1297
1298 static struct connman_property *create_property(struct connman_element *element,
1299                                                 enum connman_property_id id)
1300 {
1301         struct connman_property *property;
1302         GSList *list;
1303
1304         DBG("element %p name %s", element, element->name);
1305
1306         __connman_element_lock(element);
1307
1308         for (list = element->properties; list; list = list->next) {
1309                 property = list->data;
1310
1311                 if (property->id == id)
1312                         goto unlock;
1313         }
1314
1315         property = g_try_new0(struct connman_property, 1);
1316         if (property == NULL)
1317                 goto unlock;
1318
1319         property->flags = CONNMAN_PROPERTY_FLAG_REFERENCE;
1320         property->id    = id;
1321         property->name  = g_strdup(propid2name(id));
1322         property->type  = propid2type(id);
1323
1324         if (property->name == NULL) {
1325                 g_free(property);
1326                 property = NULL;
1327                 goto unlock;
1328         }
1329
1330         element->properties = g_slist_append(element->properties, property);
1331
1332 unlock:
1333         __connman_element_unlock(element);
1334
1335         return property;
1336 }
1337
1338 static void create_default_properties(struct connman_element *element)
1339 {
1340         struct connman_property *property;
1341         int i;
1342
1343         DBG("element %p name %s", element, element->name);
1344
1345         for (i = 0; propid_table[i].name; i++) {
1346                 DBG("property %s", propid_table[i].name);
1347
1348                 property = create_property(element, propid_table[i].id);
1349
1350                 property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
1351
1352                 if (propid_table[i].type != DBUS_TYPE_STRING)
1353                         continue;
1354
1355                 if (propid_table[i].value)
1356                         property->value = g_strdup(propid_table[i].value);
1357                 else
1358                         property->value = g_strdup("");
1359         }
1360 }
1361
1362 static int define_properties_valist(struct connman_element *element,
1363                                                                 va_list args)
1364 {
1365         enum connman_property_id id;
1366
1367         DBG("element %p name %s", element, element->name);
1368
1369         id = va_arg(args, enum connman_property_id);
1370
1371         while (id != CONNMAN_PROPERTY_ID_INVALID) {
1372
1373                 DBG("property %d", id);
1374
1375                 create_property(element, id);
1376
1377                 id = va_arg(args, enum connman_property_id);
1378         }
1379
1380         return 0;
1381 }
1382
1383 /**
1384  * connman_element_define_properties:
1385  * @element: an element
1386  * @varargs: list of property identifiers
1387  *
1388  * Define the valid properties for an element.
1389  *
1390  * Returns: %0 on success
1391  */
1392 int connman_element_define_properties(struct connman_element *element, ...)
1393 {
1394         va_list args;
1395         int err;
1396
1397         DBG("element %p name %s", element, element->name);
1398
1399         va_start(args, element);
1400
1401         err = define_properties_valist(element, args);
1402
1403         va_end(args);
1404
1405         return err;
1406 }
1407
1408 int connman_element_create_property(struct connman_element *element,
1409                                                 const char *name, int type)
1410 {
1411         return -EIO;
1412 }
1413
1414 int connman_element_set_property(struct connman_element *element,
1415                                 enum connman_property_id id, const void *value)
1416 {
1417         switch (id) {
1418         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1419                 __connman_element_lock(element);
1420                 g_free(element->ipv4.address);
1421                 element->ipv4.address = g_strdup(*((const char **) value));
1422                 __connman_element_unlock(element);
1423                 break;
1424         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1425                 __connman_element_lock(element);
1426                 g_free(element->ipv4.netmask);
1427                 element->ipv4.netmask = g_strdup(*((const char **) value));
1428                 __connman_element_unlock(element);
1429                 break;
1430         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1431                 __connman_element_lock(element);
1432                 g_free(element->ipv4.gateway);
1433                 element->ipv4.gateway = g_strdup(*((const char **) value));
1434                 __connman_element_unlock(element);
1435                 break;
1436         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1437                 __connman_element_lock(element);
1438                 g_free(element->ipv4.nameserver);
1439                 element->ipv4.nameserver = g_strdup(*((const char **) value));
1440                 __connman_element_unlock(element);
1441                 break;
1442         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1443                 __connman_element_lock(element);
1444                 g_free(element->wifi.security);
1445                 element->wifi.security = g_strdup(*((const char **) value));
1446                 __connman_element_unlock(element);
1447                 break;
1448         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1449                 __connman_element_lock(element);
1450                 g_free(element->wifi.passphrase);
1451                 element->wifi.passphrase = g_strdup(*((const char **) value));
1452                 __connman_element_unlock(element);
1453                 break;
1454         default:
1455                 return -EINVAL;
1456         }
1457
1458         return 0;
1459 }
1460
1461 int connman_element_get_value(struct connman_element *element,
1462                                 enum connman_property_id id, void *value)
1463 {
1464         if (element->type == CONNMAN_ELEMENT_TYPE_ROOT)
1465                 return -EINVAL;
1466
1467         switch (id) {
1468         case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
1469                 if (element->ipv4.address == NULL)
1470                         return connman_element_get_value(element->parent,
1471                                                                 id, value);
1472                 __connman_element_lock(element);
1473                 *((char **) value) = element->ipv4.address;
1474                 __connman_element_unlock(element);
1475                 break;
1476         case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
1477                 if (element->ipv4.netmask == NULL)
1478                         return connman_element_get_value(element->parent,
1479                                                                 id, value);
1480                 __connman_element_lock(element);
1481                 *((char **) value) = element->ipv4.netmask;
1482                 __connman_element_unlock(element);
1483                 break;
1484         case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
1485                 if (element->ipv4.gateway == NULL)
1486                         return connman_element_get_value(element->parent,
1487                                                                 id, value);
1488                 __connman_element_lock(element);
1489                 *((char **) value) = element->ipv4.gateway;
1490                 __connman_element_unlock(element);
1491                 break;
1492         case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
1493                 if (element->ipv4.nameserver == NULL)
1494                         return connman_element_get_value(element->parent,
1495                                                                 id, value);
1496                 __connman_element_lock(element);
1497                 *((char **) value) = element->ipv4.nameserver;
1498                 __connman_element_unlock(element);
1499                 break;
1500         case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
1501                 if (element->wifi.security == NULL)
1502                         return connman_element_get_value(element->parent,
1503                                                                 id, value);
1504                 __connman_element_lock(element);
1505                 *((char **) value) = element->wifi.security;
1506                 __connman_element_unlock(element);
1507                 break;
1508         case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
1509                 if (element->wifi.passphrase == NULL)
1510                         return connman_element_get_value(element->parent,
1511                                                                 id, value);
1512                 __connman_element_lock(element);
1513                 *((char **) value) = element->wifi.passphrase;
1514                 __connman_element_unlock(element);
1515                 break;
1516         default:
1517                 return -EINVAL;
1518         }
1519
1520         return 0;
1521 }
1522
1523 gboolean connman_element_get_static_property(struct connman_element *element,
1524                                                 const char *name, void *value)
1525 {
1526         GSList *list;
1527         gboolean found = FALSE;
1528
1529         DBG("element %p name %s", element, element->name);
1530
1531         __connman_element_lock(element);
1532
1533         for (list = element->properties; list; list = list->next) {
1534                 struct connman_property *property = list->data;
1535
1536                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1537                         continue;
1538
1539                 if (g_str_equal(property->name, name) == TRUE) {
1540                         switch (property->type) {
1541                         case DBUS_TYPE_STRING:
1542                                 *((char **) value) = property->value;
1543                                 found = TRUE;
1544                                 break;
1545                         }
1546                         break;
1547                 }
1548         }
1549
1550         __connman_element_unlock(element);
1551
1552         return found;
1553 }
1554
1555 gboolean connman_element_get_static_array_property(struct connman_element *element,
1556                                         const char *name, void *value, int *len)
1557 {
1558         GSList *list;
1559         gboolean found = FALSE;
1560
1561         DBG("element %p name %s", element, element->name);
1562
1563         __connman_element_lock(element);
1564
1565         for (list = element->properties; list; list = list->next) {
1566                 struct connman_property *property = list->data;
1567
1568                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1569                         continue;
1570
1571                 if (g_str_equal(property->name, name) == TRUE) {
1572                         *((char **) value) = property->value;
1573                         *len = property->size;
1574                         found = TRUE;
1575                         break;
1576                 }
1577         }
1578
1579         __connman_element_unlock(element);
1580
1581         return found;
1582 }
1583
1584 gboolean connman_element_match_static_property(struct connman_element *element,
1585                                         const char *name, const void *value)
1586 {
1587         GSList *list;
1588         gboolean result = FALSE;
1589
1590         DBG("element %p name %s", element, element->name);
1591
1592         __connman_element_lock(element);
1593
1594         for (list = element->properties; list; list = list->next) {
1595                 struct connman_property *property = list->data;
1596
1597                 if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
1598                         continue;
1599
1600                 if (g_str_equal(property->name, name) == FALSE)
1601                         continue;
1602
1603                 if (property->type == DBUS_TYPE_STRING)
1604                         result = g_str_equal(property->value,
1605                                                 *((const char **) value));
1606
1607                 if (result == TRUE)
1608                         break;
1609         }
1610
1611         __connman_element_unlock(element);
1612
1613         return result;
1614 }
1615
1616 static void append_devices(DBusMessageIter *entry)
1617 {
1618         DBusMessageIter value, iter;
1619         const char *key = "Devices";
1620
1621         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1622
1623         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1624                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1625                                                                 &value);
1626
1627         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1628                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1629         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_DEVICE, &iter);
1630         dbus_message_iter_close_container(&value, &iter);
1631
1632         dbus_message_iter_close_container(entry, &value);
1633 }
1634
1635 static void emit_devices_signal(DBusConnection *conn)
1636 {
1637         DBusMessage *signal;
1638         DBusMessageIter entry;
1639
1640         DBG("conn %p", conn);
1641
1642         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1643                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1644         if (signal == NULL)
1645                 return;
1646
1647         dbus_message_iter_init_append(signal, &entry);
1648
1649         append_devices(&entry);
1650
1651         g_dbus_send_message(conn, signal);
1652 }
1653
1654 static void emit_networks_signal(DBusConnection *conn,
1655                                         struct connman_element *device)
1656 {
1657         DBusMessage *signal;
1658         DBusMessageIter entry;
1659
1660         DBG("conn %p", conn);
1661
1662         if (device == NULL)
1663                 return;
1664
1665         signal = dbus_message_new_signal(device->path,
1666                                 CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
1667         if (signal == NULL)
1668                 return;
1669
1670         dbus_message_iter_init_append(signal, &entry);
1671
1672         append_networks(device, &entry);
1673
1674         g_dbus_send_message(conn, signal);
1675 }
1676
1677 static void append_connections(DBusMessageIter *entry)
1678 {
1679         DBusMessageIter value, iter;
1680         const char *key = "Connections";
1681
1682         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1683
1684         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1685                 DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
1686                                                                 &value);
1687
1688         dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
1689                                 DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
1690         __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
1691         dbus_message_iter_close_container(&value, &iter);
1692
1693         dbus_message_iter_close_container(entry, &value);
1694 }
1695
1696 static void emit_connections_signal(DBusConnection *conn)
1697 {
1698         DBusMessage *signal;
1699         DBusMessageIter entry;
1700
1701         DBG("conn %p", conn);
1702
1703         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1704                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1705         if (signal == NULL)
1706                 return;
1707
1708         dbus_message_iter_init_append(signal, &entry);
1709
1710         append_connections(&entry);
1711
1712         g_dbus_send_message(conn, signal);
1713 }
1714
1715 static void append_state(DBusMessageIter *entry, const char *state)
1716 {
1717         DBusMessageIter value;
1718         const char *key = "State";
1719
1720         dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
1721
1722         dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
1723                                         DBUS_TYPE_STRING_AS_STRING, &value);
1724         dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &state);
1725         dbus_message_iter_close_container(entry, &value);
1726 }
1727
1728 static void emit_state_change(DBusConnection *conn, const char *state)
1729 {
1730         DBusMessage *signal;
1731         DBusMessageIter entry;
1732
1733         DBG("conn %p", conn);
1734
1735         signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
1736                                 CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
1737         if (signal == NULL)
1738                 return;
1739
1740         dbus_message_iter_init_append(signal, &entry);
1741
1742         append_state(&entry, state);
1743
1744         g_dbus_send_message(conn, signal);
1745 }
1746
1747 static void set_signal_strength(struct connman_element *connection)
1748 {
1749         struct connman_element *element = connection;
1750
1751         while (element != NULL) {
1752                 if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1753                         connection->strength = element->strength;
1754                         break;
1755                 }
1756
1757                 element = element->parent;
1758         }
1759 }
1760
1761 static void register_element(gpointer data, gpointer user_data)
1762 {
1763         struct connman_element *element = data;
1764         const gchar *basepath;
1765         GSList *list;
1766         GNode *node;
1767
1768         __connman_element_lock(element);
1769
1770         if (element->parent) {
1771                 node = g_node_find(element_root, G_PRE_ORDER,
1772                                         G_TRAVERSE_ALL, element->parent);
1773                 basepath = element->parent->path;
1774
1775                 if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_UNKNOWN)
1776                         element->subtype = element->parent->subtype;
1777         } else {
1778                 element->parent = element_root->data;
1779
1780                 node = element_root;
1781                 basepath = "";
1782         }
1783
1784         element->path = g_strdup_printf("%s/%s", basepath, element->name);
1785
1786         set_reference_properties(element);
1787
1788         __connman_element_unlock(element);
1789
1790         DBG("element %p path %s", element, element->path);
1791
1792         __connman_element_load(element);
1793
1794         g_node_append_data(node, element);
1795
1796         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1797                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1798                 if (g_dbus_register_interface(connection, element->path,
1799                                         CONNMAN_DEVICE_INTERFACE,
1800                                         device_methods, element_signals,
1801                                         NULL, element, NULL) == FALSE)
1802                         connman_error("Failed to register %s device",
1803                                                                 element->path);
1804                 else
1805                         emit_devices_signal(connection);
1806         }
1807
1808         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1809                 if (g_dbus_register_interface(connection, element->path,
1810                                         CONNMAN_NETWORK_INTERFACE,
1811                                         network_methods, element_signals,
1812                                         NULL, element, NULL) == FALSE)
1813                         connman_error("Failed to register %s network",
1814                                                                 element->path);
1815                 else
1816                         emit_networks_signal(connection, element->parent);
1817         }
1818
1819         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1820                 if (g_dbus_register_interface(connection, element->path,
1821                                         CONNMAN_CONNECTION_INTERFACE,
1822                                         connection_methods, element_signals,
1823                                         NULL, element, NULL) == FALSE)
1824                         connman_error("Failed to register %s connection",
1825                                                                 element->path);
1826                 else {
1827                         set_signal_strength(element);
1828                         emit_connections_signal(connection);
1829                         emit_state_change(connection, "online");
1830                 }
1831         }
1832
1833         __connman_element_store(element);
1834
1835         for (list = driver_list; list; list = list->next) {
1836                 struct connman_driver *driver = list->data;
1837
1838                 if (match_driver(element, driver) == FALSE)
1839                         continue;
1840
1841                 DBG("driver %p name %s", driver, driver->name);
1842
1843                 if (driver->probe(element) == 0) {
1844                         __connman_element_lock(element);
1845                         element->driver = driver;
1846                         __connman_element_unlock(element);
1847
1848                         enable_element(element);
1849                         break;
1850                 }
1851         }
1852 }
1853
1854 /**
1855  * connman_element_register:
1856  * @element: the element to register
1857  * @parent: the parent to register the element with
1858  *
1859  * Register an element with the core. It will be register under the given
1860  * parent of if %NULL is provided under the root element.
1861  *
1862  * Returns: %0 on success
1863  */
1864 int connman_element_register(struct connman_element *element,
1865                                         struct connman_element *parent)
1866 {
1867         DBG("element %p name %s parent %p", element, element->name, parent);
1868
1869         if (element->devname == NULL)
1870                 element->devname = g_strdup(element->name);
1871
1872         if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1873                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1874                 if (g_pattern_match_simple(device_filter,
1875                                                 element->devname) == FALSE) {
1876                         DBG("ignoring %s [%s] device", element->name,
1877                                                         element->devname);
1878                         return -EPERM;
1879                 }
1880         }
1881
1882         if (connman_element_ref(element) == NULL)
1883                 return -EINVAL;
1884
1885         __connman_element_lock(element);
1886
1887         if (element->name == NULL) {
1888                 element->name = g_strdup(type2string(element->type));
1889                 if (element->name == NULL) {
1890                         __connman_element_unlock(element);
1891                         return -EINVAL;
1892                 }
1893         }
1894
1895         element->parent = parent;
1896
1897         __connman_element_unlock(element);
1898
1899         register_element(element, NULL);
1900
1901         return 0;
1902 }
1903
1904 static gboolean remove_element(GNode *node, gpointer user_data)
1905 {
1906         struct connman_element *element = node->data;
1907         struct connman_element *root = user_data;
1908
1909         DBG("element %p name %s", element, element->name);
1910
1911         if (element == root)
1912                 return FALSE;
1913
1914         if (element->driver) {
1915                 disable_element(element);
1916
1917                 if (element->driver->remove)
1918                         element->driver->remove(element);
1919
1920                 __connman_element_lock(element);
1921                 element->driver = NULL;
1922                 __connman_element_unlock(element);
1923         }
1924
1925         if (node != NULL) {
1926                 g_node_unlink(node);
1927                 g_node_destroy(node);
1928         }
1929
1930         if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
1931                 emit_state_change(connection, "offline");
1932                 emit_connections_signal(connection);
1933
1934                 g_dbus_unregister_interface(connection, element->path,
1935                                                 CONNMAN_CONNECTION_INTERFACE);
1936         }
1937
1938         if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
1939                 emit_networks_signal(connection, element->parent);
1940
1941                 g_dbus_unregister_interface(connection, element->path,
1942                                                 CONNMAN_NETWORK_INTERFACE);
1943         }
1944
1945         if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
1946                         element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
1947                 emit_devices_signal(connection);
1948
1949                 g_dbus_unregister_interface(connection, element->path,
1950                                                 CONNMAN_DEVICE_INTERFACE);
1951         }
1952
1953         connman_element_unref(element);
1954
1955         return FALSE;
1956 }
1957
1958 void connman_element_unregister(struct connman_element *element)
1959 {
1960         GNode *node;
1961
1962         DBG("element %p name %s", element, element->name);
1963
1964         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1965
1966         if (node != NULL)
1967                 g_node_traverse(node, G_POST_ORDER,
1968                                 G_TRAVERSE_ALL, -1, remove_element, NULL);
1969 }
1970
1971 void connman_element_unregister_children(struct connman_element *element)
1972 {
1973         GNode *node;
1974
1975         DBG("element %p name %s", element, element->name);
1976
1977         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
1978
1979         if (node != NULL)
1980                 g_node_traverse(node, G_POST_ORDER,
1981                                 G_TRAVERSE_ALL, -1, remove_element, element);
1982 }
1983
1984 static gboolean update_element(GNode *node, gpointer user_data)
1985 {
1986         struct connman_element *element = node->data;
1987
1988         DBG("element %p name %s", element, element->name);
1989
1990         if (element->driver && element->driver->update)
1991                 element->driver->update(element);
1992
1993         return FALSE;
1994 }
1995
1996 void connman_element_update(struct connman_element *element)
1997 {
1998         GNode *node;
1999
2000         DBG("element %p name %s", element, element->name);
2001
2002         node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
2003
2004         if (node != NULL)
2005                 g_node_traverse(node, G_PRE_ORDER,
2006                                 G_TRAVERSE_ALL, -1, update_element, NULL);
2007 }
2008
2009 int connman_element_set_enabled(struct connman_element *element,
2010                                                         gboolean enabled)
2011 {
2012         if (element->enabled == enabled)
2013                 return 0;
2014
2015         element->enabled = enabled;
2016
2017         emit_enabled_signal(connection, element);
2018
2019         return 0;
2020 }
2021
2022 int __connman_element_init(DBusConnection *conn, const char *device)
2023 {
2024         struct connman_element *element;
2025
2026         DBG("conn %p", conn);
2027
2028         connection = dbus_connection_ref(conn);
2029         if (connection == NULL)
2030                 return -EIO;
2031
2032         device_filter = g_strdup(device);
2033
2034         element = connman_element_create("root");
2035
2036         element->path = g_strdup("/");
2037         element->type = CONNMAN_ELEMENT_TYPE_ROOT;
2038
2039         create_default_properties(element);
2040
2041         element_root = g_node_new(element);
2042
2043         __connman_device_init();
2044
2045         return 0;
2046 }
2047
2048 static gboolean free_driver(GNode *node, gpointer data)
2049 {
2050         struct connman_element *element = node->data;
2051
2052         DBG("element %p name %s", element, element->name);
2053
2054         if (element->driver) {
2055                 disable_element(element);
2056
2057                 if (element->driver->remove)
2058                         element->driver->remove(element);
2059
2060                 __connman_element_lock(element);
2061                 element->driver = NULL;
2062                 __connman_element_unlock(element);
2063         }
2064
2065         return FALSE;
2066 }
2067
2068 static gboolean free_node(GNode *node, gpointer data)
2069 {
2070         struct connman_element *element = node->data;
2071
2072         DBG("element %p name %s", element, element->name);
2073
2074         if (g_node_depth(node) > 1)
2075                 connman_element_unregister(element);
2076
2077         return FALSE;
2078 }
2079
2080 void __connman_element_cleanup(void)
2081 {
2082         DBG("");
2083
2084         __connman_device_cleanup();
2085
2086         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
2087                                                         free_driver, NULL);
2088
2089         g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
2090                                                         free_node, NULL);
2091
2092         g_node_destroy(element_root);
2093         element_root = NULL;
2094
2095         g_free(device_filter);
2096
2097         dbus_connection_unref(connection);
2098 }