Only allow WiFi devices to create networks for now
[connman] / src / element.c
index 17b43f5..1145053 100644 (file)
 
 static DBusConnection *connection;
 
-static GStaticRWLock element_lock = G_STATIC_RW_LOCK_INIT;
 static GNode *element_root = NULL;
-
 static GSList *driver_list = NULL;
-
-static GThreadPool *thread_register = NULL;
-static GThreadPool *thread_unregister = NULL;
-static GThreadPool *thread_unregister_children = NULL;
-
 static gchar *device_filter = NULL;
 
 static struct {
@@ -59,6 +52,8 @@ static struct {
                DBUS_TYPE_STRING, "IPv4.Netmask" },
        { CONNMAN_PROPERTY_ID_IPV4_GATEWAY,
                DBUS_TYPE_STRING, "IPv4.Gateway" },
+       { CONNMAN_PROPERTY_ID_IPV4_BROADCAST,
+               DBUS_TYPE_STRING, "IPv4.Broadcast" },
        { CONNMAN_PROPERTY_ID_IPV4_NAMESERVER,
                DBUS_TYPE_STRING, "IPv4.Nameserver" },
 
@@ -107,6 +102,8 @@ static const char *type2string(enum connman_element_type type)
                return "device";
        case CONNMAN_ELEMENT_TYPE_NETWORK:
                return "network";
+       case CONNMAN_ELEMENT_TYPE_SERVICE:
+               return "service";
        case CONNMAN_ELEMENT_TYPE_IPV4:
                return "ipv4";
        case CONNMAN_ELEMENT_TYPE_IPV6:
@@ -117,8 +114,6 @@ static const char *type2string(enum connman_element_type type)
                return "bootp";
        case CONNMAN_ELEMENT_TYPE_ZEROCONF:
                return "zeroconf";
-       case CONNMAN_ELEMENT_TYPE_RESOLVER:
-               return "resolver";
        case CONNMAN_ELEMENT_TYPE_CONNECTION:
                return "connection";
        }
@@ -150,38 +145,132 @@ static const char *subtype2string(enum connman_element_subtype type)
        return NULL;
 }
 
+static const char *subtype2description(enum connman_element_subtype type)
+{
+       switch (type) {
+       case CONNMAN_ELEMENT_SUBTYPE_UNKNOWN:
+       case CONNMAN_ELEMENT_SUBTYPE_FAKE:
+       case CONNMAN_ELEMENT_SUBTYPE_NETWORK:
+               return NULL;
+       case CONNMAN_ELEMENT_SUBTYPE_ETHERNET:
+               return "Ethernet";
+       case CONNMAN_ELEMENT_SUBTYPE_WIFI:
+               return "Wireless";
+       case CONNMAN_ELEMENT_SUBTYPE_WIMAX:
+               return "WiMAX";
+       case CONNMAN_ELEMENT_SUBTYPE_MODEM:
+               return "Modem";
+       case CONNMAN_ELEMENT_SUBTYPE_BLUETOOTH:
+               return "Bluetooth";
+       }
+
+       return NULL;
+}
+
+const char *__connman_element_policy2string(enum connman_element_policy policy)
+{
+       switch (policy) {
+       case CONNMAN_ELEMENT_POLICY_UNKNOWN:
+               return "unknown";
+       case CONNMAN_ELEMENT_POLICY_IGNORE:
+               return "ignore";
+       case CONNMAN_ELEMENT_POLICY_AUTO:
+               return "auto";
+       case CONNMAN_ELEMENT_POLICY_ASK:
+               return "ask";
+       }
+
+       return NULL;
+}
+
+enum connman_element_policy __connman_element_string2policy(const char *policy)
+{
+       if (strcasecmp(policy, "ignore") == 0)
+               return CONNMAN_ELEMENT_POLICY_IGNORE;
+       else if (strcasecmp(policy, "auto") == 0)
+               return CONNMAN_ELEMENT_POLICY_AUTO;
+       else if (strcasecmp(policy, "ask") == 0)
+               return CONNMAN_ELEMENT_POLICY_ASK;
+       else
+               return CONNMAN_ELEMENT_POLICY_UNKNOWN;
+}
+
+const char *__connman_ipv4_method2string(enum connman_ipv4_method method)
+{
+       switch (method) {
+       case CONNMAN_IPV4_METHOD_UNKNOWN:
+               return "unknown";
+       case CONNMAN_IPV4_METHOD_OFF:
+               return "off";
+       case CONNMAN_IPV4_METHOD_STATIC:
+               return "static";
+       case CONNMAN_IPV4_METHOD_DHCP:
+               return "dhcp";
+       }
+
+       return "unknown";
+}
+
+enum connman_ipv4_method __connman_ipv4_string2method(const char *method)
+{
+       if (strcasecmp(method, "off") == 0)
+               return CONNMAN_IPV4_METHOD_OFF;
+       else if (strcasecmp(method, "static") == 0)
+               return CONNMAN_IPV4_METHOD_STATIC;
+       else if (strcasecmp(method, "dhcp") == 0)
+               return CONNMAN_IPV4_METHOD_DHCP;
+       else
+               return CONNMAN_IPV4_METHOD_UNKNOWN;
+}
+
 static void append_property(DBusMessageIter *dict,
                                struct connman_property *property)
 {
        if (property->value == NULL)
                return;
 
-       if (property->type == DBUS_TYPE_ARRAY)
+       switch (property->type) {
+       case DBUS_TYPE_ARRAY:
                connman_dbus_dict_append_array(dict, property->name,
                        property->subtype, &property->value, property->size);
-       else
+               break;
+       case DBUS_TYPE_STRING:
                connman_dbus_dict_append_variant(dict, property->name,
                                        property->type, &property->value);
+               break;
+       default:
+               connman_dbus_dict_append_variant(dict, property->name,
+                                       property->type, property->value);
+               break;
+       }
 }
 
 static void add_common_properties(struct connman_element *element,
                                                DBusMessageIter *dict)
 {
+       const char *address = NULL, *netmask = NULL, *gateway = NULL;
        GSList *list;
 
+       connman_element_get_value(element,
+                               CONNMAN_PROPERTY_ID_IPV4_ADDRESS, &address);
+       connman_element_get_value(element,
+                               CONNMAN_PROPERTY_ID_IPV4_NETMASK, &netmask);
+       connman_element_get_value(element,
+                               CONNMAN_PROPERTY_ID_IPV4_GATEWAY, &gateway);
+
        if (element->priority > 0)
                connman_dbus_dict_append_variant(dict, "Priority",
                                        DBUS_TYPE_UINT16, &element->priority);
 
-       if (element->ipv4.address != NULL)
+       if (address != NULL)
                connman_dbus_dict_append_variant(dict, "IPv4.Address",
-                               DBUS_TYPE_STRING, &element->ipv4.address);
-       if (element->ipv4.netmask != NULL)
+                                               DBUS_TYPE_STRING, &address);
+       if (netmask != NULL)
                connman_dbus_dict_append_variant(dict, "IPv4.Netmask",
-                               DBUS_TYPE_STRING, &element->ipv4.netmask);
-       if (element->ipv4.gateway != NULL)
+                                               DBUS_TYPE_STRING, &netmask);
+       if (gateway != NULL)
                connman_dbus_dict_append_variant(dict, "IPv4.Gateway",
-                               DBUS_TYPE_STRING, &element->ipv4.gateway);
+                                               DBUS_TYPE_STRING, &gateway);
 
        if (element->wifi.security != NULL) {
                const char *passphrase = "";
@@ -196,7 +285,7 @@ static void add_common_properties(struct connman_element *element,
                                DBUS_TYPE_STRING, &passphrase);
        }
 
-       connman_element_lock(element);
+       __connman_element_lock(element);
 
        for (list = element->properties; list; list = list->next) {
                struct connman_property *property = list->data;
@@ -204,155 +293,219 @@ static void add_common_properties(struct connman_element *element,
                append_property(dict, property);
        }
 
-       connman_element_unlock(element);
+       __connman_element_unlock(element);
 }
 
-static DBusMessage *get_properties(DBusConnection *conn,
-                                       DBusMessage *msg, void *data)
+static void set_common_property(struct connman_element *element,
+                               const char *name, DBusMessageIter *value)
 {
-       struct connman_element *element = data;
-       DBusMessage *reply;
-       DBusMessageIter array, dict;
-       const char *str;
+       GSList *list;
 
-       DBG("conn %p", conn);
+       if (g_str_equal(name, "Priority") == TRUE) {
+               dbus_message_iter_get_basic(value, &element->priority);
+               return;
+       }
 
-       reply = dbus_message_new_method_return(msg);
-       if (reply == NULL)
-               return NULL;
+       __connman_element_lock(element);
 
-       dbus_message_iter_init_append(reply, &array);
+       for (list = element->properties; list; list = list->next) {
+               struct connman_property *property = list->data;
+               const char *str;
 
-       dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
-                       DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
-                       DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
-                       DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
+               if (g_str_equal(property->name, name) == FALSE)
+                       continue;
 
-       if (element->parent != NULL &&
-                       element->parent->type != CONNMAN_ELEMENT_TYPE_ROOT) {
-               connman_dbus_dict_append_variant(&dict, "Parent",
-                               DBUS_TYPE_OBJECT_PATH, &element->parent->path);
+               if (property->flags & CONNMAN_PROPERTY_FLAG_STATIC)
+                       continue;
+
+               property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
+
+               if (property->type == DBUS_TYPE_STRING) {
+                       dbus_message_iter_get_basic(value, &str);
+                       g_free(property->value);
+                       property->value = g_strdup(str);
+               } else
+                       property->value = NULL;
        }
 
-       str = type2string(element->type);
-       if (str != NULL)
-               connman_dbus_dict_append_variant(&dict, "Type",
-                                               DBUS_TYPE_STRING, &str);
-       str = subtype2string(element->subtype);
-       if (str != NULL)
-               connman_dbus_dict_append_variant(&dict, "Subtype",
-                                               DBUS_TYPE_STRING, &str);
+       __connman_element_unlock(element);
+}
 
-       connman_dbus_dict_append_variant(&dict, "Enabled",
-                                       DBUS_TYPE_BOOLEAN, &element->enabled);
+static void emit_enabled_signal(DBusConnection *conn,
+                                       struct connman_element *element)
+{
+       DBusMessage *signal;
+       DBusMessageIter entry, value;
+       const char *iface, *key;
 
-       add_common_properties(element, &dict);
+       DBG("conn %p", conn);
 
-       dbus_message_iter_close_container(&array, &dict);
+       if (element == NULL)
+               return;
 
-       return reply;
-}
+       switch (element->type) {
+       case CONNMAN_ELEMENT_TYPE_DEVICE:
+               iface = CONNMAN_DEVICE_INTERFACE;
+               key = "Powered";
+               break;
+       case CONNMAN_ELEMENT_TYPE_NETWORK:
+               iface = CONNMAN_NETWORK_INTERFACE;
+               key = "Connected";
+               break;
+       case CONNMAN_ELEMENT_TYPE_CONNECTION:
+               iface = CONNMAN_CONNECTION_INTERFACE;
+               key = "Default";
+               break;
+       default:
+               return;
+       }
 
-static void append_networks(DBusMessageIter *dict)
-{
-       DBusMessageIter entry, value, iter;
-       const char *key = "Networks";
+       signal = dbus_message_new_signal(element->path,
+                                               iface, "PropertyChanged");
+       if (signal == NULL)
+               return;
 
-       dbus_message_iter_open_container(dict, DBUS_TYPE_DICT_ENTRY,
-                                                               NULL, &entry);
+       dbus_message_iter_init_append(signal, &entry);
 
        dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
 
        dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
-               DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
-                                                               &value);
+                                       DBUS_TYPE_BOOLEAN_AS_STRING, &value);
+       dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN,
+                                                       &element->enabled);
+       dbus_message_iter_close_container(&entry, &value);
 
-       dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
-                               DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
+       g_dbus_send_message(conn, signal);
+}
 
-       __connman_element_list(CONNMAN_ELEMENT_TYPE_NETWORK, &iter);
+static void emit_scanning_signal(DBusConnection *conn,
+                                       struct connman_element *element)
+{
+       DBusMessage *signal;
+       DBusMessageIter entry, value;
+       const char *key = "Scanning";
 
-       dbus_message_iter_close_container(&value, &iter);
+       DBG("conn %p", conn);
+
+       if (element == NULL)
+               return;
+
+       if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
+               return;
 
+       signal = dbus_message_new_signal(element->path,
+                               CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
+       if (signal == NULL)
+               return;
+
+       dbus_message_iter_init_append(signal, &entry);
+
+       dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &key);
+
+       dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
+                                       DBUS_TYPE_BOOLEAN_AS_STRING, &value);
+       dbus_message_iter_append_basic(&value, DBUS_TYPE_BOOLEAN,
+                                                       &element->scanning);
        dbus_message_iter_close_container(&entry, &value);
 
-       dbus_message_iter_close_container(dict, &entry);
+       g_dbus_send_message(conn, signal);
 }
 
-static DBusMessage *get_device_properties(DBusConnection *conn,
+static DBusMessage *do_update(DBusConnection *conn,
                                        DBusMessage *msg, void *data)
 {
        struct connman_element *element = data;
-       DBusMessage *reply;
-       DBusMessageIter array, dict;
-       const char *str;
 
        DBG("conn %p", conn);
 
-       reply = dbus_message_new_method_return(msg);
-       if (reply == NULL)
-               return NULL;
+       if (element->enabled == FALSE)
+               return __connman_error_failed(msg);
 
-       dbus_message_iter_init_append(reply, &array);
+       if (element->driver && element->driver->update) {
+               DBG("Calling update callback");
+               if (element->driver->update(element) < 0)
+                       return __connman_error_failed(msg);
 
-       dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
-                       DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
-                       DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
-                       DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
+       }
 
-       str = subtype2string(element->subtype);
-       if (str != NULL)
-               connman_dbus_dict_append_variant(&dict, "Type",
-                                               DBUS_TYPE_STRING, &str);
+       return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
+}
 
-       connman_dbus_dict_append_variant(&dict, "Powered",
-                                       DBUS_TYPE_BOOLEAN, &element->enabled);
+static DBusMessage *do_enable(DBusConnection *conn,
+                                       DBusMessage *msg, void *data)
+{
+       struct connman_element *element = data;
 
-       append_networks(&dict);
+       DBG("conn %p", conn);
 
-       add_common_properties(element, &dict);
+       if (element->enabled == TRUE)
+               return __connman_error_failed(msg);
 
-       dbus_message_iter_close_container(&array, &dict);
+       if (element->driver && element->driver->enable) {
+               DBG("Calling enable callback");
+               if (element->driver->enable(element) < 0)
+                       return __connman_error_failed(msg);
+       }
 
-       return reply;
+       element->enabled = TRUE;
+
+       emit_enabled_signal(connection, element);
+
+       return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 }
 
-static DBusMessage *get_network_properties(DBusConnection *conn,
+static DBusMessage *do_disable(DBusConnection *conn,
                                        DBusMessage *msg, void *data)
 {
        struct connman_element *element = data;
-       DBusMessage *reply;
-       DBusMessageIter array, dict;
 
        DBG("conn %p", conn);
 
-       reply = dbus_message_new_method_return(msg);
-       if (reply == NULL)
-               return NULL;
+       if (element->enabled == FALSE)
+               return __connman_error_failed(msg);
 
-       dbus_message_iter_init_append(reply, &array);
+       if (element->driver && element->driver->disable) {
+               DBG("Calling disable callback");
+               if (element->driver->disable(element) < 0)
+                       return __connman_error_failed(msg);
+       }
 
-       dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
-                       DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
-                       DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
-                       DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
+       element->enabled = FALSE;
 
-       connman_dbus_dict_append_variant(&dict, "Connected",
-                                       DBUS_TYPE_BOOLEAN, &element->enabled);
+       emit_enabled_signal(connection, element);
 
-       add_common_properties(element, &dict);
+       return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
+}
 
-       dbus_message_iter_close_container(&array, &dict);
+static void append_networks(struct connman_element *element,
+                                               DBusMessageIter *entry)
+{
+       DBusMessageIter value, iter;
+       const char *key = "Networks";
 
-       return reply;
+       dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
+
+       dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
+               DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
+                                                               &value);
+
+       dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
+                               DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
+
+       __connman_element_list(element, CONNMAN_ELEMENT_TYPE_NETWORK, &iter);
+
+       dbus_message_iter_close_container(&value, &iter);
+
+       dbus_message_iter_close_container(entry, &value);
 }
 
-static DBusMessage *get_connection_properties(DBusConnection *conn,
+static DBusMessage *device_get_properties(DBusConnection *conn,
                                        DBusMessage *msg, void *data)
 {
        struct connman_element *element = data;
        DBusMessage *reply;
-       DBusMessageIter array, dict;
+       DBusMessageIter array, dict, entry;
+       const char *str;
 
        DBG("conn %p", conn);
 
@@ -367,6 +520,40 @@ static DBusMessage *get_connection_properties(DBusConnection *conn,
                        DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
                        DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 
+       str = subtype2description(element->subtype);
+       if (str != NULL && element->devname != NULL) {
+               char *name = g_strdup_printf("%s (%s)", str, element->devname);
+               if (name != NULL)
+                       connman_dbus_dict_append_variant(&dict, "Name",
+                                               DBUS_TYPE_STRING, &name);
+               g_free(name);
+       }
+
+       str = subtype2string(element->subtype);
+       if (str != NULL)
+               connman_dbus_dict_append_variant(&dict, "Type",
+                                               DBUS_TYPE_STRING, &str);
+
+       str = __connman_element_policy2string(element->policy);
+       if (str != NULL)
+               connman_dbus_dict_append_variant(&dict, "Policy",
+                                               DBUS_TYPE_STRING, &str);
+
+       connman_dbus_dict_append_variant(&dict, "Powered",
+                                       DBUS_TYPE_BOOLEAN, &element->enabled);
+
+       if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIFI ||
+                       element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIMAX ||
+                       element->subtype == CONNMAN_ELEMENT_SUBTYPE_BLUETOOTH) {
+               connman_dbus_dict_append_variant(&dict, "Scanning",
+                                       DBUS_TYPE_BOOLEAN, &element->scanning);
+
+               dbus_message_iter_open_container(&dict, DBUS_TYPE_DICT_ENTRY,
+                                                               NULL, &entry);
+               append_networks(element, &entry);
+               dbus_message_iter_close_container(&dict, &entry);
+       }
+
        add_common_properties(element, &dict);
 
        dbus_message_iter_close_container(&array, &dict);
@@ -374,14 +561,12 @@ static DBusMessage *get_connection_properties(DBusConnection *conn,
        return reply;
 }
 
-static DBusMessage *set_property(DBusConnection *conn,
+static DBusMessage *device_set_property(DBusConnection *conn,
                                        DBusMessage *msg, void *data)
 {
        struct connman_element *element = data;
-       DBusMessageIter iter;
-       DBusMessageIter value;
+       DBusMessageIter iter, value;
        const char *name;
-       GSList *list;
 
        DBG("conn %p", conn);
 
@@ -395,173 +580,285 @@ static DBusMessage *set_property(DBusConnection *conn,
        if (__connman_security_check_privileges(msg) < 0)
                return __connman_error_permission_denied(msg);
 
-       connman_element_lock(element);
+       if (g_str_equal(name, "Powered") == TRUE) {
+               dbus_bool_t powered;
 
-       for (list = element->properties; list; list = list->next) {
-               struct connman_property *property = list->data;
-               const char *str;
+               dbus_message_iter_get_basic(&value, &powered);
 
-               if (g_str_equal(property->name, name) == FALSE)
-                       continue;
+               if (powered == TRUE)
+                       do_enable(conn, msg, element);
+               else
+                       do_disable(conn, msg, element);
+       } else
+               set_common_property(element, name, &value);
 
-               if (property->flags & CONNMAN_PROPERTY_FLAG_STATIC)
-                       continue;
+       __connman_element_store(element);
 
-               property->flags &= ~CONNMAN_PROPERTY_FLAG_REFERENCE;
+       return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
+}
 
-               if (property->type == DBUS_TYPE_STRING) {
-                       dbus_message_iter_get_basic(&value, &str);
-                       g_free(property->value);
-                       property->value = g_strdup(str);
-               } else
-                       property->value = NULL;
-       }
+static int parse_network_dict(DBusMessageIter *iter, const char **ssid,
+                               const char **security, const char **passphrase)
+{
+       while (dbus_message_iter_get_arg_type(iter) == DBUS_TYPE_DICT_ENTRY) {
+               DBusMessageIter entry, value;
+               const char *key;
+
+               dbus_message_iter_recurse(iter, &entry);
+               dbus_message_iter_get_basic(&entry, &key);
+
+               dbus_message_iter_next(&entry);
+               dbus_message_iter_recurse(&entry, &value);
+
+               switch (dbus_message_iter_get_arg_type(&value)) {
+               case DBUS_TYPE_STRING:
+                       if (g_str_equal(key, "WiFi.SSID") == TRUE)
+                               dbus_message_iter_get_basic(&value, ssid);
+                       else if (g_str_equal(key, "WiFi.Security") == TRUE)
+                               dbus_message_iter_get_basic(&value, security);
+                       else if (g_str_equal(key, "WiFi.Passphrase") == TRUE)
+                               dbus_message_iter_get_basic(&value, passphrase);
+                       break;
+               }
 
-       connman_element_unlock(element);
+               dbus_message_iter_next(iter);
+       }
 
-       return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
+       return 0;
 }
 
-static DBusMessage *clear_property(DBusConnection *conn,
+static DBusMessage *device_create_network(DBusConnection *conn,
                                        DBusMessage *msg, void *data)
 {
        struct connman_element *element = data;
-       const char *name;
-       GSList *list;
+       struct connman_element *network;
+       DBusMessageIter iter, array;
+       const char *ssid = NULL, *security = NULL, *passphrase = NULL;
 
        DBG("conn %p", conn);
 
-       if (dbus_message_get_args(msg, NULL, DBUS_TYPE_STRING, &name,
-                                               DBUS_TYPE_INVALID) == FALSE)
+       if (element->subtype != CONNMAN_ELEMENT_SUBTYPE_WIFI)
                return __connman_error_invalid_arguments(msg);
 
-       if (__connman_security_check_privileges(msg) < 0)
-               return __connman_error_permission_denied(msg);
+       if (dbus_message_iter_init(msg, &iter) == FALSE)
+               return __connman_error_invalid_arguments(msg);
 
-       connman_element_lock(element);
+       dbus_message_iter_recurse(&iter, &array);
+       parse_network_dict(&array, &ssid, &security, &passphrase);
+       if (ssid == NULL)
+               return __connman_error_invalid_arguments(msg);
 
-       for (list = element->properties; list; list = list->next) {
-               struct connman_property *property = list->data;
+       DBG("ssid %s security %s passphrase %s", ssid, security, passphrase);
 
-               if (g_str_equal(property->name, name) == FALSE)
-                       continue;
+       network = connman_element_create(ssid);
 
-               if (property->flags & CONNMAN_PROPERTY_FLAG_STATIC)
-                       continue;
+       network->type = CONNMAN_ELEMENT_TYPE_NETWORK;
+       network->index = element->index;
 
-               if (property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE)
-                       continue;
+       network->remember = TRUE;
 
-               property->flags |= CONNMAN_PROPERTY_FLAG_REFERENCE;
+       connman_element_add_static_property(network, "Name",
+                                               DBUS_TYPE_STRING, &ssid);
 
-               if (property->type == DBUS_TYPE_STRING)
-                       g_free(property->value);
+       connman_element_add_static_array_property(element, "WiFi.SSID",
+                                       DBUS_TYPE_BYTE, &ssid, strlen(ssid));
 
-               property->value = NULL;
-       }
+       network->wifi.security = g_strdup(security);
+       network->wifi.passphrase = g_strdup(passphrase);
+
+       connman_element_register(network, element);
 
-       connman_element_unlock(element);
+       return g_dbus_create_reply(msg, DBUS_TYPE_OBJECT_PATH, &network->path,
+                                                       DBUS_TYPE_INVALID);
+}
 
+static DBusMessage *device_remove_network(DBusConnection *conn,
+                                       DBusMessage *msg, void *data)
+{
        return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 }
 
-static DBusMessage *do_update(DBusConnection *conn,
+static DBusMessage *network_get_properties(DBusConnection *conn,
                                        DBusMessage *msg, void *data)
 {
        struct connman_element *element = data;
+       DBusMessage *reply;
+       DBusMessageIter array, dict;
+       const char *str;
 
        DBG("conn %p", conn);
 
-       if (element->enabled == FALSE)
-               return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
+       reply = dbus_message_new_method_return(msg);
+       if (reply == NULL)
+               return NULL;
 
-       if (element->driver && element->driver->update) {
-               DBG("Calling update callback");
-               element->driver->update(element);
-       }
+       dbus_message_iter_init_append(reply, &array);
 
-       return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
+       dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
+                       DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+                       DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
+                       DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
+
+       if (element->parent)
+               connman_dbus_dict_append_variant(&dict, "Device",
+                               DBUS_TYPE_OBJECT_PATH, &element->parent->path);
+
+       str = __connman_element_policy2string(element->policy);
+       if (str != NULL)
+               connman_dbus_dict_append_variant(&dict, "Policy",
+                                               DBUS_TYPE_STRING, &str);
+
+       connman_dbus_dict_append_variant(&dict, "Available",
+                                       DBUS_TYPE_BOOLEAN, &element->available);
+
+       connman_dbus_dict_append_variant(&dict, "Connected",
+                                       DBUS_TYPE_BOOLEAN, &element->enabled);
+
+       connman_dbus_dict_append_variant(&dict, "Remember",
+                                       DBUS_TYPE_BOOLEAN, &element->remember);
+
+       add_common_properties(element, &dict);
+
+       dbus_message_iter_close_container(&array, &dict);
+
+       return reply;
 }
 
-static DBusMessage *do_enable(DBusConnection *conn,
+static DBusMessage *network_set_property(DBusConnection *conn,
                                        DBusMessage *msg, void *data)
 {
        struct connman_element *element = data;
+       DBusMessageIter iter;
+       DBusMessageIter value;
+       const char *name;
 
        DBG("conn %p", conn);
 
-       if (element->enabled == TRUE)
-               return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
+       if (dbus_message_iter_init(msg, &iter) == FALSE)
+               return __connman_error_invalid_arguments(msg);
 
-       if (element->driver && element->driver->enable) {
-               DBG("Calling enable callback");
-               if (element->driver->enable(element) < 0)
-                       return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
-       }
+       dbus_message_iter_get_basic(&iter, &name);
+       dbus_message_iter_next(&iter);
+       dbus_message_iter_recurse(&iter, &value);
 
-       element->enabled = TRUE;
+       if (__connman_security_check_privileges(msg) < 0)
+               return __connman_error_permission_denied(msg);
 
-       g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
-                               CONNMAN_MANAGER_INTERFACE, "ElementUpdated",
-                               DBUS_TYPE_OBJECT_PATH, &element->path,
-                                                       DBUS_TYPE_INVALID);
+       if (g_str_equal(name, "Remember") == TRUE) {
+               dbus_message_iter_get_basic(&value, &element->remember);
+       } else if (g_str_equal(name, "WiFi.Passphrase") == TRUE) {
+               const char *str;
+
+               dbus_message_iter_get_basic(&value, &str);
+               g_free(element->wifi.passphrase);
+               element->wifi.passphrase = g_strdup(str);
+       } else
+               set_common_property(element, name, &value);
+
+       __connman_element_store(element);
 
        return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
 }
 
-static DBusMessage *do_disable(DBusConnection *conn,
+static DBusMessage *connection_get_properties(DBusConnection *conn,
                                        DBusMessage *msg, void *data)
 {
        struct connman_element *element = data;
+       DBusMessage *reply;
+       DBusMessageIter array, dict;
+       const char *str;
 
        DBG("conn %p", conn);
 
-       if (element->enabled == FALSE)
-               return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
+       reply = dbus_message_new_method_return(msg);
+       if (reply == NULL)
+               return NULL;
 
-       if (element->driver && element->driver->disable) {
-               DBG("Calling disable callback");
-               if (element->driver->disable(element) < 0)
-                       return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
-       }
+       dbus_message_iter_init_append(reply, &array);
 
-       element->enabled = FALSE;
+       dbus_message_iter_open_container(&array, DBUS_TYPE_ARRAY,
+                       DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
+                       DBUS_TYPE_STRING_AS_STRING DBUS_TYPE_VARIANT_AS_STRING
+                       DBUS_DICT_ENTRY_END_CHAR_AS_STRING, &dict);
 
-       g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
-                               CONNMAN_MANAGER_INTERFACE, "ElementUpdated",
-                               DBUS_TYPE_OBJECT_PATH, &element->path,
-                                                       DBUS_TYPE_INVALID);
+       str = subtype2string(element->subtype);
+       if (str != NULL)
+               connman_dbus_dict_append_variant(&dict, "Type",
+                                               DBUS_TYPE_STRING, &str);
 
-       return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
+       if (element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIFI ||
+                       element->subtype == CONNMAN_ELEMENT_SUBTYPE_WIMAX)
+               connman_dbus_dict_append_variant(&dict, "Strength",
+                                       DBUS_TYPE_BYTE, &element->strength);
+
+       connman_dbus_dict_append_variant(&dict, "Default",
+                                       DBUS_TYPE_BOOLEAN, &element->enabled);
+
+       add_common_properties(element, &dict);
+
+       dbus_message_iter_close_container(&array, &dict);
+
+       return reply;
 }
 
-static GDBusMethodTable element_methods[] = {
-       { "GetProperties", "",   "a{sv}", get_properties },
-       { "SetProperty",   "sv", "",      set_property   },
-       { "ClearProperty", "s",  "",      clear_property },
-       { "Update",        "",   "",      do_update      },
-       { "Enable",        "",   "",      do_enable      },
-       { "Disable",       "",   "",      do_disable     },
-       { },
-};
+static DBusMessage *connection_set_property(DBusConnection *conn,
+                                       DBusMessage *msg, void *data)
+{
+       struct connman_element *element = data;
+       DBusMessageIter iter, value;
+       const char *name;
 
-static GDBusSignalTable element_signals[] = {
-       { "PropertyChanged", "sv" },
-       { },
-};
+       DBG("conn %p", conn);
+
+       if (dbus_message_iter_init(msg, &iter) == FALSE)
+               return __connman_error_invalid_arguments(msg);
+
+       dbus_message_iter_get_basic(&iter, &name);
+       dbus_message_iter_next(&iter);
+       dbus_message_iter_recurse(&iter, &value);
+
+       if (__connman_security_check_privileges(msg) < 0)
+               return __connman_error_permission_denied(msg);
+
+       if (g_str_equal(name, "Default") == TRUE) {
+               dbus_bool_t enabled;
+
+               dbus_message_iter_get_basic(&value, &enabled);
+
+               if (enabled == TRUE)
+                       return do_enable(conn, msg, element);
+               else
+                       return do_disable(conn, msg, element);
+       }
+
+       return g_dbus_create_reply(msg, DBUS_TYPE_INVALID);
+}
 
 static GDBusMethodTable device_methods[] = {
-       { "GetProperties", "",   "a{sv}", get_device_properties },
+       { "GetProperties", "",      "a{sv}", device_get_properties },
+       { "SetProperty",   "sv",    "",      device_set_property   },
+       { "CreateNetwork", "a{sv}", "o",     device_create_network },
+       { "RemoveNetwork", "o",     "",      device_remove_network },
+       { "ProposeScan",   "",      "",      do_update             },
        { },
 };
 
 static GDBusMethodTable network_methods[] = {
-       { "GetProperties", "",   "a{sv}", get_network_properties },
+       { "GetProperties", "",   "a{sv}", network_get_properties },
+       { "SetProperty",   "sv", "",      network_set_property   },
+       { "Connect",       "",   "",      do_enable              },
+       { "Disconnect",    "",   "",      do_disable             },
        { },
 };
 
 static GDBusMethodTable connection_methods[] = {
-       { "GetProperties", "",   "a{sv}", get_connection_properties },
+       { "GetProperties", "",   "a{sv}", connection_get_properties },
+       { "SetProperty",   "sv", "",      connection_set_property   },
+       { },
+};
+
+static GDBusSignalTable element_signals[] = {
+       { "PropertyChanged", "sv" },
        { },
 };
 
@@ -584,23 +881,35 @@ static gboolean append_path(GNode *node, gpointer user_data)
                                        filter->type != element->type)
                return FALSE;
 
+       if (filter->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
+                       element->subtype == CONNMAN_ELEMENT_SUBTYPE_NETWORK)
+               return FALSE;
+
        dbus_message_iter_append_basic(filter->iter,
                                DBUS_TYPE_OBJECT_PATH, &element->path);
 
        return FALSE;
 }
 
-void __connman_element_list(enum connman_element_type type,
-                                               DBusMessageIter *iter)
+void __connman_element_list(struct connman_element *element,
+                                       enum connman_element_type type,
+                                                       DBusMessageIter *iter)
 {
        struct append_filter filter = { type, iter };
+       GNode *node;
 
        DBG("");
 
-       g_static_rw_lock_reader_lock(&element_lock);
-       g_node_traverse(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
-                                                       append_path, &filter);
-       g_static_rw_lock_reader_unlock(&element_lock);
+       if (element != NULL) {
+               node = g_node_find(element_root, G_PRE_ORDER,
+                                               G_TRAVERSE_ALL, element);
+               if (node == NULL)
+                       return;
+       } else
+               node = element_root;
+
+       g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
+                                               append_path, &filter);
 }
 
 struct count_data {
@@ -627,16 +936,24 @@ static gboolean count_element(GNode *node, gpointer user_data)
        return FALSE;
 }
 
-int __connman_element_count(enum connman_element_type type)
+int __connman_element_count(struct connman_element *element,
+                                       enum connman_element_type type)
 {
        struct count_data data = { type, 0 };
+       GNode *node;
 
        DBG("");
 
-       g_static_rw_lock_reader_lock(&element_lock);
-       g_node_traverse(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
-                                                       count_element, &data);
-       g_static_rw_lock_reader_unlock(&element_lock);
+       if (element != NULL) {
+               node = g_node_find(element_root, G_PRE_ORDER,
+                                               G_TRAVERSE_ALL, element);
+               if (node == NULL)
+                       return 0;
+       } else
+               node = element_root;
+
+       g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1,
+                                               count_element, &data);
 
        return data.count;
 }
@@ -666,6 +983,22 @@ static gboolean match_driver(struct connman_element *element,
        return FALSE;
 }
 
+static void enable_element(struct connman_element *element)
+{
+       if (element->type != CONNMAN_ELEMENT_TYPE_DEVICE)
+               return;
+
+       if (element->policy != CONNMAN_ELEMENT_POLICY_AUTO)
+               return;
+
+       if (element->driver && element->driver->enable) {
+               if (element->driver->enable(element) == 0) {
+                       element->enabled = TRUE;
+                       emit_enabled_signal(connection, element);
+               }
+       }
+}
+
 static gboolean probe_driver(GNode *node, gpointer data)
 {
        struct connman_element *element = node->data;
@@ -677,9 +1010,11 @@ static gboolean probe_driver(GNode *node, gpointer data)
                if (driver->probe(element) < 0)
                        return FALSE;
 
-               connman_element_lock(element);
+               __connman_element_lock(element);
                element->driver = driver;
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
+
+               enable_element(element);
        }
 
        return FALSE;
@@ -692,13 +1027,9 @@ void __connman_driver_rescan(struct connman_driver *driver)
        if (!driver->probe)
                return;
 
-       g_static_rw_lock_writer_lock(&element_lock);
-
        if (element_root != NULL)
                g_node_traverse(element_root, G_PRE_ORDER,
                                G_TRAVERSE_ALL, -1, probe_driver, driver);
-
-       g_static_rw_lock_writer_unlock(&element_lock);
 }
 
 /**
@@ -719,8 +1050,6 @@ int connman_driver_register(struct connman_driver *driver)
        if (!driver->probe)
                return -EINVAL;
 
-       g_static_rw_lock_writer_lock(&element_lock);
-
        driver_list = g_slist_insert_sorted(driver_list, driver,
                                                        compare_priority);
 
@@ -728,11 +1057,25 @@ int connman_driver_register(struct connman_driver *driver)
                g_node_traverse(element_root, G_PRE_ORDER,
                                G_TRAVERSE_ALL, -1, probe_driver, driver);
 
-       g_static_rw_lock_writer_unlock(&element_lock);
-
        return 0;
 }
 
+static void disable_element(struct connman_element *element)
+{
+       if (element->policy != CONNMAN_ELEMENT_POLICY_AUTO)
+               return;
+
+       if (element->enabled == FALSE)
+               return;
+
+       if (element->driver && element->driver->disable) {
+               if (element->driver->disable(element) == 0) {
+                       element->enabled = FALSE;
+                       emit_enabled_signal(connection, element);
+               }
+       }
+}
+
 static gboolean remove_driver(GNode *node, gpointer data)
 {
        struct connman_element *element = node->data;
@@ -741,12 +1084,14 @@ static gboolean remove_driver(GNode *node, gpointer data)
        DBG("element %p name %s", element, element->name);
 
        if (element->driver == driver) {
+               disable_element(element);
+
                if (driver->remove)
                        driver->remove(element);
 
-               connman_element_lock(element);
+               __connman_element_lock(element);
                element->driver = NULL;
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
        }
 
        return FALSE;
@@ -762,15 +1107,11 @@ void connman_driver_unregister(struct connman_driver *driver)
 {
        DBG("driver %p name %s", driver, driver->name);
 
-       g_static_rw_lock_writer_lock(&element_lock);
-
        driver_list = g_slist_remove(driver_list, driver);
 
        if (element_root != NULL)
                g_node_traverse(element_root, G_POST_ORDER,
                                G_TRAVERSE_ALL, -1, remove_driver, driver);
-
-       g_static_rw_lock_writer_unlock(&element_lock);
 }
 
 /**
@@ -794,12 +1135,11 @@ struct connman_element *connman_element_create(const char *name)
 
        element->refcount = 1;
 
-       g_static_mutex_init(&element->mutex);
-
        element->name    = g_strdup(name);
        element->type    = CONNMAN_ELEMENT_TYPE_UNKNOWN;
        element->subtype = CONNMAN_ELEMENT_SUBTYPE_UNKNOWN;
        element->state   = CONNMAN_ELEMENT_STATE_CLOSED;
+       element->policy  = CONNMAN_ELEMENT_POLICY_AUTO;
        element->index   = -1;
        element->enabled = FALSE;
 
@@ -822,19 +1162,15 @@ static void free_properties(struct connman_element *element)
 
        DBG("element %p name %s", element, element->name);
 
-       connman_element_lock(element);
+       __connman_element_lock(element);
 
        for (list = element->properties; list; list = list->next) {
                struct connman_property *property = list->data;
 
-               if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE)) {
-                       if (property->type == DBUS_TYPE_STRING)
-                               g_free(property->value);
-                       if (property->type == DBUS_TYPE_ARRAY &&
-                                       property->subtype == DBUS_TYPE_BYTE)
-                               g_free(property->value);
-               }
+               if (!(property->flags & CONNMAN_PROPERTY_FLAG_REFERENCE))
+                       g_free(property->value);
 
+               g_free(property->name);
                g_free(property);
        }
 
@@ -842,7 +1178,7 @@ static void free_properties(struct connman_element *element)
 
        element->properties = NULL;
 
-       connman_element_unlock(element);
+       __connman_element_unlock(element);
 }
 
 void connman_element_unref(struct connman_element *element)
@@ -858,42 +1194,144 @@ void connman_element_unref(struct connman_element *element)
                g_free(element->ipv4.network);
                g_free(element->ipv4.broadcast);
                g_free(element->ipv4.nameserver);
+               g_free(element->devname);
                g_free(element->path);
                g_free(element->name);
                g_free(element);
        }
 }
 
-int connman_element_add_static_property(struct connman_element *element,
+int connman_element_add_static_property(struct connman_element *element,
+                               const char *name, int type, const void *value)
+{
+       struct connman_property *property;
+
+       DBG("element %p name %s", element, element->name);
+
+       if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
+               return -EINVAL;
+
+       property = g_try_new0(struct connman_property, 1);
+       if (property == NULL)
+               return -ENOMEM;
+
+       property->flags = CONNMAN_PROPERTY_FLAG_STATIC;
+       property->id    = CONNMAN_PROPERTY_ID_INVALID;
+       property->name  = g_strdup(name);
+       property->type  = type;
+
+       DBG("name %s type %d value %p", name, type, value);
+
+       switch (type) {
+       case DBUS_TYPE_STRING:
+               property->value = g_strdup(*((const char **) value));
+               break;
+       case DBUS_TYPE_BYTE:
+               property->value = g_try_malloc(1);
+               if (property->value != NULL)
+                       memcpy(property->value, value, 1);
+               break;
+       }
+
+       __connman_element_lock(element);
+       element->properties = g_slist_append(element->properties, property);
+       __connman_element_unlock(element);
+
+       return 0;
+}
+
+static void emit_property_changed(DBusConnection *conn,
+                               struct connman_element *element,
+                               const char *name, int type, const void *data)
+{
+       DBusMessage *signal;
+       DBusMessageIter entry, value;
+       const char *iface, *sig;
+
+       DBG("conn %p", conn);
+
+       switch (element->type) {
+       case CONNMAN_ELEMENT_TYPE_DEVICE:
+               iface = CONNMAN_DEVICE_INTERFACE;
+               break;
+       case CONNMAN_ELEMENT_TYPE_NETWORK:
+               iface = CONNMAN_NETWORK_INTERFACE;
+               break;
+       case CONNMAN_ELEMENT_TYPE_CONNECTION:
+               iface = CONNMAN_CONNECTION_INTERFACE;
+               break;
+       default:
+               return;
+       }
+
+       signal = dbus_message_new_signal(element->path,
+                                               iface, "PropertyChanged");
+       if (signal == NULL)
+               return;
+
+       dbus_message_iter_init_append(signal, &entry);
+
+       dbus_message_iter_append_basic(&entry, DBUS_TYPE_STRING, &name);
+
+       switch (type) {
+       case DBUS_TYPE_STRING:
+               sig = DBUS_TYPE_STRING_AS_STRING;
+               break;
+       case DBUS_TYPE_BYTE:
+               sig = DBUS_TYPE_BYTE_AS_STRING;
+               break;
+       default:
+               sig = DBUS_TYPE_VARIANT_AS_STRING;
+               break;
+       }
+
+       dbus_message_iter_open_container(&entry, DBUS_TYPE_VARIANT,
+                                                       sig, &value);
+       dbus_message_iter_append_basic(&value, type, data);
+       dbus_message_iter_close_container(&entry, &value);
+
+       g_dbus_send_message(conn, signal);
+}
+
+int connman_element_set_static_property(struct connman_element *element,
                                const char *name, int type, const void *value)
 {
-       struct connman_property *property;
+       GSList *list;
 
        DBG("element %p name %s", element, element->name);
 
-       if (type != DBUS_TYPE_STRING)
+       if (type != DBUS_TYPE_STRING && type != DBUS_TYPE_BYTE)
                return -EINVAL;
 
-       property = g_try_new0(struct connman_property, 1);
-       if (property == NULL)
-               return -ENOMEM;
+       __connman_element_lock(element);
 
-       property->flags = CONNMAN_PROPERTY_FLAG_STATIC;
-       property->id    = CONNMAN_PROPERTY_ID_INVALID;
-       property->name  = g_strdup(name);
-       property->type  = type;
+       for (list = element->properties; list; list = list->next) {
+               struct connman_property *property = list->data;
 
-       DBG("name %s type %d value %p", name, type, value);
+               if (g_str_equal(property->name, name) == FALSE)
+                       continue;
 
-       switch (type) {
-       case DBUS_TYPE_STRING:
-               property->value = g_strdup(*((const char **) value));
-               break;
+               if (!(property->flags & CONNMAN_PROPERTY_FLAG_STATIC))
+                       continue;
+
+               property->type = type;
+               g_free(property->value);
+
+               switch (type) {
+               case DBUS_TYPE_STRING:
+                       property->value = g_strdup(*((const char **) value));
+                       break;
+               case DBUS_TYPE_BYTE:
+                       property->value = g_try_malloc(1);
+                       if (property->value != NULL)
+                               memcpy(property->value, value, 1);
+                       break;
+               }
        }
 
-       connman_element_lock(element);
-       element->properties = g_slist_append(element->properties, property);
-       connman_element_unlock(element);
+       __connman_element_unlock(element);
+
+       emit_property_changed(connection, element, name, type, value);
 
        return 0;
 }
@@ -931,9 +1369,9 @@ int connman_element_add_static_array_property(struct connman_element *element,
                break;
        }
 
-       connman_element_lock(element);
+       __connman_element_lock(element);
        element->properties = g_slist_append(element->properties, property);
-       connman_element_unlock(element);
+       __connman_element_unlock(element);
 
        return 0;
 }
@@ -986,7 +1424,7 @@ static struct connman_property *create_property(struct connman_element *element,
 
        DBG("element %p name %s", element, element->name);
 
-       connman_element_lock(element);
+       __connman_element_lock(element);
 
        for (list = element->properties; list; list = list->next) {
                property = list->data;
@@ -1013,7 +1451,7 @@ static struct connman_property *create_property(struct connman_element *element,
        element->properties = g_slist_append(element->properties, property);
 
 unlock:
-       connman_element_unlock(element);
+       __connman_element_unlock(element);
 
        return property;
 }
@@ -1099,50 +1537,51 @@ int connman_element_set_property(struct connman_element *element,
 {
        switch (id) {
        case CONNMAN_PROPERTY_ID_IPV4_ADDRESS:
-               connman_element_lock(element);
+               __connman_element_lock(element);
                g_free(element->ipv4.address);
                element->ipv4.address = g_strdup(*((const char **) value));
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
                break;
        case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
-               connman_element_lock(element);
+               __connman_element_lock(element);
                g_free(element->ipv4.netmask);
                element->ipv4.netmask = g_strdup(*((const char **) value));
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
                break;
        case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
-               connman_element_lock(element);
+               __connman_element_lock(element);
                g_free(element->ipv4.gateway);
                element->ipv4.gateway = g_strdup(*((const char **) value));
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
+               break;
+       case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
+               __connman_element_lock(element);
+               g_free(element->ipv4.broadcast);
+               element->ipv4.broadcast = g_strdup(*((const char **) value));
+               __connman_element_unlock(element);
                break;
        case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
-               connman_element_lock(element);
+               __connman_element_lock(element);
                g_free(element->ipv4.nameserver);
                element->ipv4.nameserver = g_strdup(*((const char **) value));
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
                break;
        case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
-               connman_element_lock(element);
+               __connman_element_lock(element);
                g_free(element->wifi.security);
                element->wifi.security = g_strdup(*((const char **) value));
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
                break;
        case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
-               connman_element_lock(element);
+               __connman_element_lock(element);
                g_free(element->wifi.passphrase);
                element->wifi.passphrase = g_strdup(*((const char **) value));
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
                break;
        default:
                return -EINVAL;
        }
 
-       g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
-                               CONNMAN_MANAGER_INTERFACE, "ElementUpdated",
-                               DBUS_TYPE_OBJECT_PATH, &element->path,
-                                                       DBUS_TYPE_INVALID);
-
        return 0;
 }
 
@@ -1157,49 +1596,57 @@ int connman_element_get_value(struct connman_element *element,
                if (element->ipv4.address == NULL)
                        return connman_element_get_value(element->parent,
                                                                id, value);
-               connman_element_lock(element);
+               __connman_element_lock(element);
                *((char **) value) = element->ipv4.address;
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
                break;
        case CONNMAN_PROPERTY_ID_IPV4_NETMASK:
                if (element->ipv4.netmask == NULL)
                        return connman_element_get_value(element->parent,
                                                                id, value);
-               connman_element_lock(element);
+               __connman_element_lock(element);
                *((char **) value) = element->ipv4.netmask;
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
                break;
        case CONNMAN_PROPERTY_ID_IPV4_GATEWAY:
                if (element->ipv4.gateway == NULL)
                        return connman_element_get_value(element->parent,
                                                                id, value);
-               connman_element_lock(element);
+               __connman_element_lock(element);
                *((char **) value) = element->ipv4.gateway;
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
+               break;
+       case CONNMAN_PROPERTY_ID_IPV4_BROADCAST:
+               if (element->ipv4.broadcast == NULL)
+                       return connman_element_get_value(element->parent,
+                                                               id, value);
+               __connman_element_lock(element);
+               *((char **) value) = element->ipv4.broadcast;
+               __connman_element_unlock(element);
                break;
        case CONNMAN_PROPERTY_ID_IPV4_NAMESERVER:
                if (element->ipv4.nameserver == NULL)
                        return connman_element_get_value(element->parent,
                                                                id, value);
-               connman_element_lock(element);
+               __connman_element_lock(element);
                *((char **) value) = element->ipv4.nameserver;
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
                break;
        case CONNMAN_PROPERTY_ID_WIFI_SECURITY:
                if (element->wifi.security == NULL)
                        return connman_element_get_value(element->parent,
                                                                id, value);
-               connman_element_lock(element);
+               __connman_element_lock(element);
                *((char **) value) = element->wifi.security;
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
                break;
        case CONNMAN_PROPERTY_ID_WIFI_PASSPHRASE:
                if (element->wifi.passphrase == NULL)
                        return connman_element_get_value(element->parent,
                                                                id, value);
-               connman_element_lock(element);
+               __connman_element_lock(element);
                *((char **) value) = element->wifi.passphrase;
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
                break;
        default:
                return -EINVAL;
@@ -1216,7 +1663,7 @@ gboolean connman_element_get_static_property(struct connman_element *element,
 
        DBG("element %p name %s", element, element->name);
 
-       connman_element_lock(element);
+       __connman_element_lock(element);
 
        for (list = element->properties; list; list = list->next) {
                struct connman_property *property = list->data;
@@ -1225,13 +1672,17 @@ gboolean connman_element_get_static_property(struct connman_element *element,
                        continue;
 
                if (g_str_equal(property->name, name) == TRUE) {
-                       *((char **) value) = property->value;
-                       found = TRUE;
+                       switch (property->type) {
+                       case DBUS_TYPE_STRING:
+                               *((char **) value) = property->value;
+                               found = TRUE;
+                               break;
+                       }
                        break;
                }
        }
 
-       connman_element_unlock(element);
+       __connman_element_unlock(element);
 
        return found;
 }
@@ -1244,7 +1695,7 @@ gboolean connman_element_get_static_array_property(struct connman_element *eleme
 
        DBG("element %p name %s", element, element->name);
 
-       connman_element_lock(element);
+       __connman_element_lock(element);
 
        for (list = element->properties; list; list = list->next) {
                struct connman_property *property = list->data;
@@ -1260,7 +1711,7 @@ gboolean connman_element_get_static_array_property(struct connman_element *eleme
                }
        }
 
-       connman_element_unlock(element);
+       __connman_element_unlock(element);
 
        return found;
 }
@@ -1273,7 +1724,7 @@ gboolean connman_element_match_static_property(struct connman_element *element,
 
        DBG("element %p name %s", element, element->name);
 
-       connman_element_lock(element);
+       __connman_element_lock(element);
 
        for (list = element->properties; list; list = list->next) {
                struct connman_property *property = list->data;
@@ -1292,118 +1743,154 @@ gboolean connman_element_match_static_property(struct connman_element *element,
                        break;
        }
 
-       connman_element_unlock(element);
+       __connman_element_unlock(element);
 
        return result;
 }
 
-/**
- * connman_element_register:
- * @element: the element to register
- * @parent: the parent to register the element with
- *
- * Register an element with the core. It will be register under the given
- * parent of if %NULL is provided under the root element.
- *
- * Returns: %0 on success
- */
-int connman_element_register(struct connman_element *element,
-                                       struct connman_element *parent)
+static void append_devices(DBusMessageIter *entry)
 {
-       DBG("element %p name %s parent %p", element, element->name, parent);
+       DBusMessageIter value, iter;
+       const char *key = "Devices";
 
-       if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE) {
-               if (g_pattern_match_simple(device_filter,
-                                               element->name) == FALSE) {
-                       DBG("ignoring %s device", element->name);
-                       return -EPERM;
-               }
-       }
+       dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 
-       if (connman_element_ref(element) == NULL)
-               return -EINVAL;
+       dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
+               DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
+                                                               &value);
 
-       connman_element_lock(element);
+       dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
+                               DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
+       __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_DEVICE, &iter);
+       dbus_message_iter_close_container(&value, &iter);
 
-       if (element->name == NULL) {
-               element->name = g_strdup(type2string(element->type));
-               if (element->name == NULL) {
-                       connman_element_unlock(element);
-                       return -EINVAL;
-               }
-       }
+       dbus_message_iter_close_container(entry, &value);
+}
 
-       element->parent = parent;
+static void emit_devices_signal(DBusConnection *conn)
+{
+       DBusMessage *signal;
+       DBusMessageIter entry;
 
-       connman_element_unlock(element);
+       DBG("conn %p", conn);
 
-       if (thread_register != NULL)
-               g_thread_pool_push(thread_register, element, NULL);
+       signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
+                               CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
+       if (signal == NULL)
+               return;
 
-       return 0;
+       dbus_message_iter_init_append(signal, &entry);
+
+       append_devices(&entry);
+
+       g_dbus_send_message(conn, signal);
 }
 
-void connman_element_unregister(struct connman_element *element)
+static void emit_networks_signal(DBusConnection *conn,
+                                       struct connman_element *device)
 {
-       DBG("element %p name %s", element, element->name);
+       DBusMessage *signal;
+       DBusMessageIter entry;
+
+       DBG("conn %p", conn);
+
+       if (device == NULL)
+               return;
 
-       if (thread_unregister != NULL)
-               g_thread_pool_push(thread_unregister, element, NULL);
+       signal = dbus_message_new_signal(device->path,
+                               CONNMAN_DEVICE_INTERFACE, "PropertyChanged");
+       if (signal == NULL)
+               return;
+
+       dbus_message_iter_init_append(signal, &entry);
+
+       append_networks(device, &entry);
+
+       g_dbus_send_message(conn, signal);
 }
 
-void connman_element_unregister_children(struct connman_element *element)
+static void append_connections(DBusMessageIter *entry)
 {
-       DBG("element %p name %s", element, element->name);
+       DBusMessageIter value, iter;
+       const char *key = "Connections";
+
+       dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
+
+       dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
+               DBUS_TYPE_ARRAY_AS_STRING DBUS_TYPE_OBJECT_PATH_AS_STRING,
+                                                               &value);
+
+       dbus_message_iter_open_container(&value, DBUS_TYPE_ARRAY,
+                               DBUS_TYPE_OBJECT_PATH_AS_STRING, &iter);
+       __connman_element_list(NULL, CONNMAN_ELEMENT_TYPE_CONNECTION, &iter);
+       dbus_message_iter_close_container(&value, &iter);
 
-       if (thread_unregister_children != NULL)
-               g_thread_pool_push(thread_unregister_children, element, NULL);
+       dbus_message_iter_close_container(entry, &value);
 }
 
-static gboolean update_element(GNode *node, gpointer user_data)
+static void emit_connections_signal(DBusConnection *conn)
 {
-       struct connman_element *element = node->data;
+       DBusMessage *signal;
+       DBusMessageIter entry;
 
-       DBG("element %p name %s", element, element->name);
+       DBG("conn %p", conn);
 
-       if (element->driver && element->driver->update)
-               element->driver->update(element);
+       signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
+                               CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
+       if (signal == NULL)
+               return;
 
-       g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
-                               CONNMAN_MANAGER_INTERFACE, "ElementUpdated",
-                               DBUS_TYPE_OBJECT_PATH, &element->path,
-                                                       DBUS_TYPE_INVALID);
+       dbus_message_iter_init_append(signal, &entry);
 
-       return FALSE;
+       append_connections(&entry);
+
+       g_dbus_send_message(conn, signal);
 }
 
-void connman_element_update(struct connman_element *element)
+static void append_state(DBusMessageIter *entry, const char *state)
 {
-       GNode *node;
+       DBusMessageIter value;
+       const char *key = "State";
 
-       DBG("element %p name %s", element, element->name);
+       dbus_message_iter_append_basic(entry, DBUS_TYPE_STRING, &key);
 
-       g_static_rw_lock_reader_lock(&element_lock);
+       dbus_message_iter_open_container(entry, DBUS_TYPE_VARIANT,
+                                       DBUS_TYPE_STRING_AS_STRING, &value);
+       dbus_message_iter_append_basic(&value, DBUS_TYPE_STRING, &state);
+       dbus_message_iter_close_container(entry, &value);
+}
 
-       node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
+static void emit_state_change(DBusConnection *conn, const char *state)
+{
+       DBusMessage *signal;
+       DBusMessageIter entry;
 
-       if (node != NULL)
-               g_node_traverse(node, G_PRE_ORDER,
-                               G_TRAVERSE_ALL, -1, update_element, NULL);
+       DBG("conn %p", conn);
+
+       signal = dbus_message_new_signal(CONNMAN_MANAGER_PATH,
+                               CONNMAN_MANAGER_INTERFACE, "PropertyChanged");
+       if (signal == NULL)
+               return;
 
-       g_static_rw_lock_reader_unlock(&element_lock);
+       dbus_message_iter_init_append(signal, &entry);
+
+       append_state(&entry, state);
+
+       g_dbus_send_message(conn, signal);
 }
 
-int connman_element_set_enabled(struct connman_element *element,
-                                                       gboolean enabled)
+static void set_signal_strength(struct connman_element *connection)
 {
-       if (element->enabled == enabled)
-               return 0;
-
-       element->enabled = enabled;
+       struct connman_element *element = connection;
 
-       connman_element_update(element);
+       while (element != NULL) {
+               if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
+                       connection->strength = element->strength;
+                       break;
+               }
 
-       return 0;
+               element = element->parent;
+       }
 }
 
 static void register_element(gpointer data, gpointer user_data)
@@ -1413,9 +1900,7 @@ static void register_element(gpointer data, gpointer user_data)
        GSList *list;
        GNode *node;
 
-       g_static_rw_lock_writer_lock(&element_lock);
-
-       connman_element_lock(element);
+       __connman_element_lock(element);
 
        if (element->parent) {
                node = g_node_find(element_root, G_PRE_ORDER,
@@ -1435,7 +1920,7 @@ static void register_element(gpointer data, gpointer user_data)
 
        set_reference_properties(element);
 
-       connman_element_unlock(element);
+       __connman_element_unlock(element);
 
        DBG("element %p path %s", element, element->path);
 
@@ -1443,19 +1928,16 @@ static void register_element(gpointer data, gpointer user_data)
 
        g_node_append_data(node, element);
 
-       if (g_dbus_register_interface(connection, element->path,
-                                       CONNMAN_ELEMENT_INTERFACE,
-                                       element_methods, element_signals,
-                                       NULL, element, NULL) == FALSE)
-               connman_error("Failed to register %s element", element->path);
-
-       if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE) {
+       if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
+                       element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
                if (g_dbus_register_interface(connection, element->path,
                                        CONNMAN_DEVICE_INTERFACE,
                                        device_methods, element_signals,
                                        NULL, element, NULL) == FALSE)
                        connman_error("Failed to register %s device",
                                                                element->path);
+               else
+                       emit_devices_signal(connection);
        }
 
        if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
@@ -1465,6 +1947,8 @@ static void register_element(gpointer data, gpointer user_data)
                                        NULL, element, NULL) == FALSE)
                        connman_error("Failed to register %s network",
                                                                element->path);
+               else
+                       emit_networks_signal(connection, element->parent);
        }
 
        if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
@@ -1474,19 +1958,15 @@ static void register_element(gpointer data, gpointer user_data)
                                        NULL, element, NULL) == FALSE)
                        connman_error("Failed to register %s connection",
                                                                element->path);
+               else {
+                       set_signal_strength(element);
+                       emit_connections_signal(connection);
+                       emit_state_change(connection, "online");
+               }
        }
 
-       g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
-                               CONNMAN_MANAGER_INTERFACE, "ElementAdded",
-                               DBUS_TYPE_OBJECT_PATH, &element->path,
-                                                       DBUS_TYPE_INVALID);
-
-       g_static_rw_lock_writer_unlock(&element_lock);
-
        __connman_element_store(element);
 
-       g_static_rw_lock_writer_lock(&element_lock);
-
        for (list = driver_list; list; list = list->next) {
                struct connman_driver *driver = list->data;
 
@@ -1496,14 +1976,64 @@ static void register_element(gpointer data, gpointer user_data)
                DBG("driver %p name %s", driver, driver->name);
 
                if (driver->probe(element) == 0) {
-                       connman_element_lock(element);
+                       __connman_element_lock(element);
                        element->driver = driver;
-                       connman_element_unlock(element);
+                       __connman_element_unlock(element);
+
+                       enable_element(element);
                        break;
                }
        }
+}
+
+/**
+ * connman_element_register:
+ * @element: the element to register
+ * @parent: the parent to register the element with
+ *
+ * Register an element with the core. It will be register under the given
+ * parent of if %NULL is provided under the root element.
+ *
+ * Returns: %0 on success
+ */
+int connman_element_register(struct connman_element *element,
+                                       struct connman_element *parent)
+{
+       DBG("element %p name %s parent %p", element, element->name, parent);
+
+       if (element->devname == NULL)
+               element->devname = g_strdup(element->name);
+
+       if (device_filter && element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
+                       element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
+               if (g_pattern_match_simple(device_filter,
+                                               element->devname) == FALSE) {
+                       DBG("ignoring %s [%s] device", element->name,
+                                                       element->devname);
+                       return -EPERM;
+               }
+       }
+
+       if (connman_element_ref(element) == NULL)
+               return -EINVAL;
+
+       __connman_element_lock(element);
+
+       if (element->name == NULL) {
+               element->name = g_strdup(type2string(element->type));
+               if (element->name == NULL) {
+                       __connman_element_unlock(element);
+                       return -EINVAL;
+               }
+       }
+
+       element->parent = parent;
+
+       __connman_element_unlock(element);
+
+       register_element(element, NULL);
 
-       g_static_rw_lock_writer_unlock(&element_lock);
+       return 0;
 }
 
 static gboolean remove_element(GNode *node, gpointer user_data)
@@ -1517,12 +2047,14 @@ static gboolean remove_element(GNode *node, gpointer user_data)
                return FALSE;
 
        if (element->driver) {
+               disable_element(element);
+
                if (element->driver->remove)
                        element->driver->remove(element);
 
-               connman_element_lock(element);
+               __connman_element_lock(element);
                element->driver = NULL;
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
        }
 
        if (node != NULL) {
@@ -1530,65 +2062,121 @@ static gboolean remove_element(GNode *node, gpointer user_data)
                g_node_destroy(node);
        }
 
-       g_dbus_emit_signal(connection, CONNMAN_MANAGER_PATH,
-                               CONNMAN_MANAGER_INTERFACE, "ElementRemoved",
-                               DBUS_TYPE_OBJECT_PATH, &element->path,
-                                                       DBUS_TYPE_INVALID);
+       if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION) {
+               if (__connman_element_count(NULL,
+                                       CONNMAN_ELEMENT_TYPE_CONNECTION) == 0)
+                       emit_state_change(connection, "offline");
+               emit_connections_signal(connection);
 
-       if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION)
                g_dbus_unregister_interface(connection, element->path,
                                                CONNMAN_CONNECTION_INTERFACE);
+       }
+
+       if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
+               emit_networks_signal(connection, element->parent);
 
-       if (element->type == CONNMAN_ELEMENT_TYPE_NETWORK)
                g_dbus_unregister_interface(connection, element->path,
                                                CONNMAN_NETWORK_INTERFACE);
+       }
+
+       if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE &&
+                       element->subtype != CONNMAN_ELEMENT_SUBTYPE_NETWORK) {
+               emit_devices_signal(connection);
 
-       if (element->type == CONNMAN_ELEMENT_TYPE_DEVICE)
                g_dbus_unregister_interface(connection, element->path,
                                                CONNMAN_DEVICE_INTERFACE);
-
-       g_dbus_unregister_interface(connection, element->path,
-                                               CONNMAN_ELEMENT_INTERFACE);
+       }
 
        connman_element_unref(element);
 
        return FALSE;
 }
 
-static void unregister_element(gpointer data, gpointer user_data)
+void connman_element_unregister(struct connman_element *element)
 {
-       struct connman_element *element = data;
        GNode *node;
 
        DBG("element %p name %s", element, element->name);
 
-       g_static_rw_lock_writer_lock(&element_lock);
-
        node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
 
        if (node != NULL)
                g_node_traverse(node, G_POST_ORDER,
                                G_TRAVERSE_ALL, -1, remove_element, NULL);
-
-       g_static_rw_lock_writer_unlock(&element_lock);
 }
 
-static void unregister_children(gpointer data, gpointer user_data)
+void connman_element_unregister_children(struct connman_element *element)
 {
-       struct connman_element *element = data;
        GNode *node;
 
        DBG("element %p name %s", element, element->name);
 
-       g_static_rw_lock_writer_lock(&element_lock);
-
        node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
 
        if (node != NULL)
                g_node_traverse(node, G_POST_ORDER,
                                G_TRAVERSE_ALL, -1, remove_element, element);
+}
+
+static gboolean update_element(GNode *node, gpointer user_data)
+{
+       struct connman_element *element = node->data;
+       struct connman_element *root = user_data;
+
+       DBG("element %p name %s", element, element->name);
+
+       if (element->driver && element->driver->update)
+               element->driver->update(element);
+
+       if (element->type == CONNMAN_ELEMENT_TYPE_CONNECTION &&
+                               root->type == CONNMAN_ELEMENT_TYPE_NETWORK) {
+               if (element->strength != root->strength) {
+                       element->strength = root->strength;
+                       emit_property_changed(connection, element, "Strength",
+                                       DBUS_TYPE_BYTE, &element->strength);
+               }
+       }
+
+       return FALSE;
+}
+
+void connman_element_update(struct connman_element *element)
+{
+       GNode *node;
+
+       DBG("element %p name %s", element, element->name);
+
+       node = g_node_find(element_root, G_PRE_ORDER, G_TRAVERSE_ALL, element);
+
+       if (node != NULL)
+               g_node_traverse(node, G_PRE_ORDER,
+                               G_TRAVERSE_ALL, -1, update_element, element);
+}
+
+int connman_element_set_enabled(struct connman_element *element,
+                                                       gboolean enabled)
+{
+       if (element->enabled == enabled)
+               return 0;
+
+       element->enabled = enabled;
+
+       emit_enabled_signal(connection, element);
 
-       g_static_rw_lock_writer_unlock(&element_lock);
+       return 0;
+}
+
+int connman_element_set_scanning(struct connman_element *element,
+                                                       gboolean scanning)
+{
+       if (element->scanning == scanning)
+               return 0;
+
+       element->scanning = scanning;
+
+       emit_scanning_signal(connection, element);
+
+       return 0;
 }
 
 int __connman_element_init(DBusConnection *conn, const char *device)
@@ -1603,8 +2191,6 @@ int __connman_element_init(DBusConnection *conn, const char *device)
 
        device_filter = g_strdup(device);
 
-       g_static_rw_lock_writer_lock(&element_lock);
-
        element = connman_element_create("root");
 
        element->path = g_strdup("/");
@@ -1614,15 +2200,6 @@ int __connman_element_init(DBusConnection *conn, const char *device)
 
        element_root = g_node_new(element);
 
-       g_static_rw_lock_writer_unlock(&element_lock);
-
-       thread_register = g_thread_pool_new(register_element,
-                                                       NULL, 1, FALSE, NULL);
-       thread_unregister = g_thread_pool_new(unregister_element,
-                                                       NULL, 1, FALSE, NULL);
-       thread_unregister_children = g_thread_pool_new(unregister_children,
-                                                       NULL, 1, FALSE, NULL);
-
        __connman_device_init();
 
        return 0;
@@ -1635,12 +2212,14 @@ static gboolean free_driver(GNode *node, gpointer data)
        DBG("element %p name %s", element, element->name);
 
        if (element->driver) {
+               disable_element(element);
+
                if (element->driver->remove)
                        element->driver->remove(element);
 
-               connman_element_lock(element);
+               __connman_element_lock(element);
                element->driver = NULL;
-               connman_element_unlock(element);
+               __connman_element_unlock(element);
        }
 
        return FALSE;
@@ -1653,7 +2232,7 @@ static gboolean free_node(GNode *node, gpointer data)
        DBG("element %p name %s", element, element->name);
 
        if (g_node_depth(node) > 1)
-               g_thread_pool_push(thread_unregister, element, NULL);
+               connman_element_unregister(element);
 
        return FALSE;
 }
@@ -1664,29 +2243,14 @@ void __connman_element_cleanup(void)
 
        __connman_device_cleanup();
 
-       g_thread_pool_free(thread_register, TRUE, TRUE);
-       thread_register = NULL;
-
-       g_static_rw_lock_writer_lock(&element_lock);
        g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
                                                        free_driver, NULL);
-       g_static_rw_lock_writer_unlock(&element_lock);
 
-       g_static_rw_lock_writer_lock(&element_lock);
        g_node_traverse(element_root, G_POST_ORDER, G_TRAVERSE_ALL, -1,
                                                        free_node, NULL);
-       g_static_rw_lock_writer_unlock(&element_lock);
-
-       g_thread_pool_free(thread_unregister, FALSE, TRUE);
-       thread_unregister = NULL;
-
-       g_thread_pool_free(thread_unregister_children, FALSE, TRUE);
-       thread_unregister_children = NULL;
 
-       g_static_rw_lock_writer_lock(&element_lock);
        g_node_destroy(element_root);
        element_root = NULL;
-       g_static_rw_lock_writer_unlock(&element_lock);
 
        g_free(device_filter);