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authorMichael Biebl <biebl@debian.org>2021-10-01 23:05:04 +0200
committerMichael Biebl <biebl@debian.org>2021-10-01 23:05:04 +0200
commite74c568b07b50b97873fb4ee1d776dedefbd54d6 (patch)
tree3469f17ea9af91f7ff169b890633bda68b0cf76e /src/libnm-client-impl/nm-device.c
parentbfe522304da217296e2a61040f58e35ec5d6f3f2 (diff)
New upstream version 1.32.12 upstream/1.32.12
Diffstat (limited to 'src/libnm-client-impl/nm-device.c')
-rw-r--r--src/libnm-client-impl/nm-device.c3080
1 files changed, 3080 insertions, 0 deletions
diff --git a/src/libnm-client-impl/nm-device.c b/src/libnm-client-impl/nm-device.c
new file mode 100644
index 00000000..4d097935
--- /dev/null
+++ b/src/libnm-client-impl/nm-device.c
@@ -0,0 +1,3080 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+/*
+ * Copyright (C) 2007 - 2008 Novell, Inc.
+ * Copyright (C) 2007 - 2018 Red Hat, Inc.
+ */
+
+#include "libnm-client-impl/nm-default-libnm.h"
+
+#include "nm-device.h"
+
+#include <libudev.h>
+
+#include "libnm-glib-aux/nm-dbus-aux.h"
+#include "nm-dbus-interface.h"
+#include "nm-active-connection.h"
+#include "nm-device-bt.h"
+#include "nm-dhcp4-config.h"
+#include "nm-dhcp6-config.h"
+#include "nm-ip4-config.h"
+#include "nm-ip6-config.h"
+#include "nm-object-private.h"
+#include "nm-remote-connection.h"
+#include "libnm-core-intern/nm-core-internal.h"
+#include "nm-utils.h"
+#include "nm-dbus-helpers.h"
+#include "nm-device-tun.h"
+#include "nm-setting-connection.h"
+#include "libnm-udev-aux/nm-udev-utils.h"
+
+/*****************************************************************************/
+
+NM_GOBJECT_PROPERTIES_DEFINE(NMDevice,
+                             PROP_INTERFACE,
+                             PROP_UDI,
+                             PROP_PATH,
+                             PROP_DRIVER,
+                             PROP_DRIVER_VERSION,
+                             PROP_FIRMWARE_VERSION,
+                             PROP_CAPABILITIES,
+                             PROP_REAL,
+                             PROP_MANAGED,
+                             PROP_AUTOCONNECT,
+                             PROP_FIRMWARE_MISSING,
+                             PROP_NM_PLUGIN_MISSING,
+                             PROP_IP4_CONFIG,
+                             PROP_DHCP4_CONFIG,
+                             PROP_IP6_CONFIG,
+                             PROP_STATE,
+                             PROP_STATE_REASON,
+                             PROP_PRODUCT,
+                             PROP_VENDOR,
+                             PROP_DHCP6_CONFIG,
+                             PROP_IP_INTERFACE,
+                             PROP_DEVICE_TYPE,
+                             PROP_ACTIVE_CONNECTION,
+                             PROP_AVAILABLE_CONNECTIONS,
+                             PROP_PHYSICAL_PORT_ID,
+                             PROP_MTU,
+                             PROP_METERED,
+                             PROP_LLDP_NEIGHBORS,
+                             PROP_IP4_CONNECTIVITY,
+                             PROP_IP6_CONNECTIVITY,
+                             PROP_INTERFACE_FLAGS,
+                             PROP_HW_ADDRESS, );
+
+enum {
+    STATE_CHANGED,
+
+    LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = {0};
+
+enum {
+    PROPERTY_O_IDX_ACTIVE_CONNECTION,
+    PROPERTY_O_IDX_IP4_CONFIG,
+    PROPERTY_O_IDX_IP6_CONFIG,
+    PROPERTY_O_IDX_DHCP4_CONFIG,
+    PROPERTY_O_IDX_DHCP6_CONFIG,
+    _PROPERTY_O_IDX_NUM,
+};
+
+typedef struct _NMDevicePrivate {
+    NMLDBusPropertyO  property_o[_PROPERTY_O_IDX_NUM];
+    NMLDBusPropertyAO available_connections;
+    GPtrArray *       lldp_neighbors;
+    char *            driver;
+    char *            driver_version;
+    char *            hw_address;
+    char *            interface;
+    char *            ip_interface;
+    char *            firmware_version;
+    char *            physical_port_id;
+    char *            udi;
+    char *            path;
+    guint32           capabilities;
+    guint32           device_type;
+    guint32           ip4_connectivity;
+    guint32           ip6_connectivity;
+    guint32           metered;
+    guint32           mtu;
+    guint32           state;
+    guint32           state_reason;
+    guint32           interface_flags;
+    bool              firmware_missing;
+    bool              nm_plugin_missing;
+    bool              autoconnect;
+    bool              managed;
+    bool              real;
+
+    bool hw_address_is_new : 1;
+
+    guint32 old_state;
+
+    struct udev *udev;
+    char *       type_description;
+    char *       product;
+    char *       vendor;
+    char *       short_vendor;
+    char *       description;
+    char *       bus_name;
+
+} NMDevicePrivate;
+
+G_DEFINE_ABSTRACT_TYPE(NMDevice, nm_device, NM_TYPE_OBJECT);
+
+#define NM_DEVICE_GET_PRIVATE(self) _NM_GET_PRIVATE_PTR(self, NMDevice, NM_IS_DEVICE, NMObject)
+
+/*****************************************************************************/
+
+static gboolean connection_compatible(NMDevice *device, NMConnection *connection, GError **error);
+static NMLldpNeighbor *_nm_lldp_neighbor_dup(NMLldpNeighbor *neighbor);
+
+/*****************************************************************************/
+
+struct _NMLldpNeighbor {
+    int         refcount;
+    GHashTable *attrs;
+};
+
+G_DEFINE_BOXED_TYPE(NMLldpNeighbor, nm_lldp_neighbor, _nm_lldp_neighbor_dup, nm_lldp_neighbor_unref)
+
+/*****************************************************************************/
+
+static void
+nm_device_init(NMDevice *self)
+{
+    NMDevicePrivate *priv;
+
+    priv = G_TYPE_INSTANCE_GET_PRIVATE(self, NM_TYPE_DEVICE, NMDevicePrivate);
+
+    self->_priv = priv;
+
+    priv->old_state = NM_DEVICE_STATE_UNKNOWN;
+}
+
+/*****************************************************************************/
+
+static void
+_notify_event_state_changed(NMClient *client, NMClientNotifyEventWithPtr *notify_event)
+{
+    gs_unref_object NMDevice *self = notify_event->user_data;
+    NMDevicePrivate *         priv = NM_DEVICE_GET_PRIVATE(self);
+
+    NML_NMCLIENT_LOG_T(client,
+                       "[%s] emit Device's StateChanged signal %u -> %u, reason: %u",
+                       _nm_object_get_path(self),
+                       (guint) priv->old_state,
+                       (guint) priv->state,
+                       (guint) priv->state_reason);
+
+    g_signal_emit(self,
+                  signals[STATE_CHANGED],
+                  0,
+                  (guint) priv->state,
+                  (guint) priv->old_state,
+                  (guint) priv->state_reason);
+}
+
+static NMLDBusNotifyUpdatePropFlags
+_notify_update_prop_state_reason(NMClient *              client,
+                                 NMLDBusObject *         dbobj,
+                                 const NMLDBusMetaIface *meta_iface,
+                                 guint                   dbus_property_idx,
+                                 GVariant *              value)
+{
+    NMDevice *       self      = NM_DEVICE(dbobj->nmobj);
+    NMDevicePrivate *priv      = NM_DEVICE_GET_PRIVATE(self);
+    guint32          new_state = NM_DEVICE_STATE_UNKNOWN;
+    guint32          reason    = NM_DEVICE_STATE_REASON_NONE;
+
+    /* We ignore the "State" property and the "StateChanged" signal of the device.
+     * This information is redundant to the "StateReason" property, and we rely
+     * on that one alone. In the best case, the information is identical. If it
+     * would not be, then we stick to the information from "StateReason" property. */
+
+    if (value)
+        g_variant_get(value, "(uu)", &new_state, &reason);
+
+    if (priv->state == new_state && priv->state_reason == reason) {
+        /* no changes. */
+        return NML_DBUS_NOTIFY_UPDATE_PROP_FLAGS_NONE;
+    }
+
+    if (priv->state != new_state) {
+        priv->old_state = priv->state;
+        priv->state     = new_state;
+        _nm_client_queue_notify_object(client, self, obj_properties[PROP_STATE]);
+    }
+
+    if (priv->state_reason != reason) {
+        priv->state_reason = reason;
+        _nm_client_queue_notify_object(client, self, obj_properties[PROP_STATE_REASON]);
+    }
+
+    _nm_client_notify_event_queue_with_ptr(client,
+                                           NM_CLIENT_NOTIFY_EVENT_PRIO_GPROP + 1,
+                                           _notify_event_state_changed,
+                                           g_object_ref(self));
+
+    return NML_DBUS_NOTIFY_UPDATE_PROP_FLAGS_NONE;
+}
+
+static NMLDBusNotifyUpdatePropFlags
+_notify_update_prop_lldp_neighbors(NMClient *              client,
+                                   NMLDBusObject *         dbobj,
+                                   const NMLDBusMetaIface *meta_iface,
+                                   guint                   dbus_property_idx,
+                                   GVariant *              value)
+{
+    NMDevice *        self                      = NM_DEVICE(dbobj->nmobj);
+    NMDevicePrivate * priv                      = NM_DEVICE_GET_PRIVATE(self);
+    gs_unref_ptrarray GPtrArray *old            = NULL;
+    gs_unref_ptrarray            GPtrArray *new = NULL;
+    GVariantIter *               attrs_iter;
+    GVariantIter                 iter;
+
+    new = g_ptr_array_new_with_free_func((GDestroyNotify) nm_lldp_neighbor_unref);
+
+    if (value) {
+        g_variant_iter_init(&iter, value);
+        while (g_variant_iter_next(&iter, "a{sv}", &attrs_iter)) {
+            GVariant *      attr_variant;
+            const char *    attr_name;
+            NMLldpNeighbor *neigh;
+
+            /* Note that there is no public API to mutate a NMLldpNeighbor instance.
+             * This is the only place where we actually mutate it. */
+            neigh = nm_lldp_neighbor_new();
+            while (g_variant_iter_next(attrs_iter, "{&sv}", &attr_name, &attr_variant)) {
+                if (attr_name[0] == '\0') {
+                    g_variant_unref(attr_variant);
+                    continue;
+                }
+                g_hash_table_insert(neigh->attrs, g_strdup(attr_name), attr_variant);
+            }
+
+            g_ptr_array_add(new, neigh);
+
+            g_variant_iter_free(attrs_iter);
+        }
+    }
+
+    old                  = g_steal_pointer(&priv->lldp_neighbors);
+    priv->lldp_neighbors = g_steal_pointer(&new);
+    return NML_DBUS_NOTIFY_UPDATE_PROP_FLAGS_NOTIFY;
+}
+
+/*****************************************************************************/
+
+static NMDeviceType
+coerce_type(NMDeviceType type)
+{
+    switch (type) {
+    case NM_DEVICE_TYPE_ETHERNET:
+    case NM_DEVICE_TYPE_WIFI:
+    case NM_DEVICE_TYPE_BT:
+    case NM_DEVICE_TYPE_OLPC_MESH:
+    case NM_DEVICE_TYPE_OVS_INTERFACE:
+    case NM_DEVICE_TYPE_OVS_PORT:
+    case NM_DEVICE_TYPE_OVS_BRIDGE:
+    case NM_DEVICE_TYPE_WIMAX:
+    case NM_DEVICE_TYPE_MODEM:
+    case NM_DEVICE_TYPE_INFINIBAND:
+    case NM_DEVICE_TYPE_BOND:
+    case NM_DEVICE_TYPE_TEAM:
+    case NM_DEVICE_TYPE_BRIDGE:
+    case NM_DEVICE_TYPE_VLAN:
+    case NM_DEVICE_TYPE_ADSL:
+    case NM_DEVICE_TYPE_MACSEC:
+    case NM_DEVICE_TYPE_MACVLAN:
+    case NM_DEVICE_TYPE_VXLAN:
+    case NM_DEVICE_TYPE_IP_TUNNEL:
+    case NM_DEVICE_TYPE_TUN:
+    case NM_DEVICE_TYPE_VETH:
+    case NM_DEVICE_TYPE_GENERIC:
+    case NM_DEVICE_TYPE_UNUSED1:
+    case NM_DEVICE_TYPE_UNUSED2:
+    case NM_DEVICE_TYPE_UNKNOWN:
+    case NM_DEVICE_TYPE_DUMMY:
+    case NM_DEVICE_TYPE_PPP:
+    case NM_DEVICE_TYPE_WPAN:
+    case NM_DEVICE_TYPE_6LOWPAN:
+    case NM_DEVICE_TYPE_WIREGUARD:
+    case NM_DEVICE_TYPE_WIFI_P2P:
+    case NM_DEVICE_TYPE_VRF:
+        return type;
+    }
+    return NM_DEVICE_TYPE_UNKNOWN;
+}
+
+/*****************************************************************************/
+
+static void
+register_client(NMObject *nmobj, NMClient *client, NMLDBusObject *dbobj)
+{
+    NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE(nmobj);
+
+    priv->udev = _nm_client_get_udev(client);
+    if (priv->udev)
+        udev_ref(priv->udev);
+
+    NM_OBJECT_CLASS(nm_device_parent_class)->register_client(nmobj, client, dbobj);
+}
+
+/*****************************************************************************/
+
+static void
+finalize(GObject *object)
+{
+    NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE(object);
+
+    nm_clear_pointer(&priv->lldp_neighbors, g_ptr_array_unref);
+
+    g_free(priv->interface);
+    g_free(priv->ip_interface);
+    g_free(priv->udi);
+    g_free(priv->path);
+    g_free(priv->driver);
+    g_free(priv->driver_version);
+    g_free(priv->firmware_version);
+    g_free(priv->product);
+    g_free(priv->vendor);
+    g_free(priv->short_vendor);
+    g_free(priv->description);
+    g_free(priv->bus_name);
+    g_free(priv->type_description);
+    g_free(priv->physical_port_id);
+    g_free(priv->hw_address);
+
+    nm_clear_pointer(&priv->udev, udev_unref);
+
+    G_OBJECT_CLASS(nm_device_parent_class)->finalize(object);
+}
+
+static void
+get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+    NMDevice *device = NM_DEVICE(object);
+
+    switch (prop_id) {
+    case PROP_DEVICE_TYPE:
+        g_value_set_enum(value, nm_device_get_device_type(device));
+        break;
+    case PROP_UDI:
+        g_value_set_string(value, nm_device_get_udi(device));
+        break;
+    case PROP_PATH:
+        g_value_set_string(value, nm_device_get_path(device));
+        break;
+    case PROP_INTERFACE:
+        g_value_set_string(value, nm_device_get_iface(device));
+        break;
+    case PROP_IP_INTERFACE:
+        g_value_set_string(value, nm_device_get_ip_iface(device));
+        break;
+    case PROP_DRIVER:
+        g_value_set_string(value, nm_device_get_driver(device));
+        break;
+    case PROP_DRIVER_VERSION:
+        g_value_set_string(value, nm_device_get_driver_version(device));
+        break;
+    case PROP_FIRMWARE_VERSION:
+        g_value_set_string(value, nm_device_get_firmware_version(device));
+        break;
+    case PROP_CAPABILITIES:
+        g_value_set_flags(value, nm_device_get_capabilities(device));
+        break;
+    case PROP_REAL:
+        g_value_set_boolean(value, nm_device_is_real(device));
+        break;
+    case PROP_MANAGED:
+        g_value_set_boolean(value, nm_device_get_managed(device));
+        break;
+    case PROP_AUTOCONNECT:
+        g_value_set_boolean(value, nm_device_get_autoconnect(device));
+        break;
+    case PROP_FIRMWARE_MISSING:
+        g_value_set_boolean(value, nm_device_get_firmware_missing(device));
+        break;
+    case PROP_NM_PLUGIN_MISSING:
+        g_value_set_boolean(value, nm_device_get_nm_plugin_missing(device));
+        break;
+    case PROP_IP4_CONFIG:
+        g_value_set_object(value, nm_device_get_ip4_config(device));
+        break;
+    case PROP_DHCP4_CONFIG:
+        g_value_set_object(value, nm_device_get_dhcp4_config(device));
+        break;
+    case PROP_IP6_CONFIG:
+        g_value_set_object(value, nm_device_get_ip6_config(device));
+        break;
+    case PROP_DHCP6_CONFIG:
+        g_value_set_object(value, nm_device_get_dhcp6_config(device));
+        break;
+    case PROP_STATE:
+        g_value_set_enum(value, nm_device_get_state(device));
+        break;
+    case PROP_STATE_REASON:
+        g_value_set_uint(value, nm_device_get_state_reason(device));
+        break;
+    case PROP_ACTIVE_CONNECTION:
+        g_value_set_object(value, nm_device_get_active_connection(device));
+        break;
+    case PROP_AVAILABLE_CONNECTIONS:
+        g_value_take_boxed(
+            value,
+            _nm_utils_copy_object_array(nm_device_get_available_connections(device)));
+        break;
+    case PROP_PRODUCT:
+        g_value_set_string(value, nm_device_get_product(device));
+        break;
+    case PROP_VENDOR:
+        g_value_set_string(value, nm_device_get_vendor(device));
+        break;
+    case PROP_PHYSICAL_PORT_ID:
+        g_value_set_string(value, nm_device_get_physical_port_id(device));
+        break;
+    case PROP_MTU:
+        g_value_set_uint(value, nm_device_get_mtu(device));
+        break;
+    case PROP_METERED:
+        g_value_set_uint(value, nm_device_get_metered(device));
+        break;
+    case PROP_LLDP_NEIGHBORS:
+        g_value_set_boxed(value, nm_device_get_lldp_neighbors(device));
+        break;
+    case PROP_IP4_CONNECTIVITY:
+        g_value_set_enum(value, nm_device_get_connectivity(device, AF_INET));
+        break;
+    case PROP_IP6_CONNECTIVITY:
+        g_value_set_enum(value, nm_device_get_connectivity(device, AF_INET6));
+        break;
+    case PROP_INTERFACE_FLAGS:
+        g_value_set_uint(value, nm_device_get_interface_flags(device));
+        break;
+    case PROP_HW_ADDRESS:
+        g_value_set_string(value, nm_device_get_hw_address(device));
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+        break;
+    }
+}
+
+static void
+set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
+{
+    NMDevice *       self = NM_DEVICE(object);
+    NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE(self);
+    gboolean         b;
+
+    switch (prop_id) {
+    case PROP_AUTOCONNECT:
+        b = g_value_get_boolean(value);
+        if (priv->autoconnect != b)
+            nm_device_set_autoconnect(NM_DEVICE(object), b);
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+        break;
+    }
+}
+
+/* TODO: statistics interface not yet implemented. */
+const NMLDBusMetaIface _nml_dbus_meta_iface_nm_device_statistics = NML_DBUS_META_IFACE_INIT(
+    NM_DBUS_INTERFACE_DEVICE_STATISTICS,
+    NULL,
+    NML_DBUS_META_INTERFACE_PRIO_NONE,
+    NML_DBUS_META_IFACE_DBUS_PROPERTIES(NML_DBUS_META_PROPERTY_INIT_TODO("RefreshRateMs", "u"),
+                                        NML_DBUS_META_PROPERTY_INIT_TODO("RxBytes", "t"),
+                                        NML_DBUS_META_PROPERTY_INIT_TODO("TxBytes", "t"), ), );
+
+const NMLDBusMetaIface _nml_dbus_meta_iface_nm_device = NML_DBUS_META_IFACE_INIT_PROP(
+    NM_DBUS_INTERFACE_DEVICE,
+    nm_device_get_type,
+    NML_DBUS_META_INTERFACE_PRIO_PARENT_TYPE,
+    NML_DBUS_META_IFACE_DBUS_PROPERTIES(
+        NML_DBUS_META_PROPERTY_INIT_O_PROP("ActiveConnection",
+                                           PROP_ACTIVE_CONNECTION,
+                                           NMDevicePrivate,
+                                           property_o[PROPERTY_O_IDX_ACTIVE_CONNECTION],
+                                           nm_active_connection_get_type,
+                                           .is_always_ready = TRUE),
+        NML_DBUS_META_PROPERTY_INIT_B("Autoconnect",
+                                      PROP_AUTOCONNECT,
+                                      NMDevicePrivate,
+                                      autoconnect),
+        NML_DBUS_META_PROPERTY_INIT_AO_PROP("AvailableConnections",
+                                            PROP_AVAILABLE_CONNECTIONS,
+                                            NMDevicePrivate,
+                                            available_connections,
+                                            nm_remote_connection_get_type,
+                                            .is_always_ready = TRUE),
+        NML_DBUS_META_PROPERTY_INIT_U("Capabilities",
+                                      PROP_CAPABILITIES,
+                                      NMDevicePrivate,
+                                      capabilities),
+        NML_DBUS_META_PROPERTY_INIT_U("DeviceType", PROP_DEVICE_TYPE, NMDevicePrivate, device_type),
+        NML_DBUS_META_PROPERTY_INIT_O_PROP("Dhcp4Config",
+                                           PROP_DHCP4_CONFIG,
+                                           NMDevicePrivate,
+                                           property_o[PROPERTY_O_IDX_DHCP4_CONFIG],
+                                           nm_dhcp4_config_get_type),
+        NML_DBUS_META_PROPERTY_INIT_O_PROP("Dhcp6Config",
+                                           PROP_DHCP6_CONFIG,
+                                           NMDevicePrivate,
+                                           property_o[PROPERTY_O_IDX_DHCP6_CONFIG],
+                                           nm_dhcp6_config_get_type),
+        NML_DBUS_META_PROPERTY_INIT_S("Driver", PROP_DRIVER, NMDevicePrivate, driver),
+        NML_DBUS_META_PROPERTY_INIT_S("DriverVersion",
+                                      PROP_DRIVER_VERSION,
+                                      NMDevicePrivate,
+                                      driver_version),
+        NML_DBUS_META_PROPERTY_INIT_B("FirmwareMissing",
+                                      PROP_FIRMWARE_MISSING,
+                                      NMDevicePrivate,
+                                      firmware_missing),
+        NML_DBUS_META_PROPERTY_INIT_S("FirmwareVersion",
+                                      PROP_FIRMWARE_VERSION,
+                                      NMDevicePrivate,
+                                      firmware_version),
+        NML_DBUS_META_PROPERTY_INIT_FCN("HwAddress",
+                                        0,
+                                        "s",
+                                        _nm_device_notify_update_prop_hw_address),
+        NML_DBUS_META_PROPERTY_INIT_S("Interface", PROP_INTERFACE, NMDevicePrivate, interface),
+        NML_DBUS_META_PROPERTY_INIT_U("InterfaceFlags",
+                                      PROP_INTERFACE_FLAGS,
+                                      NMDevicePrivate,
+                                      interface_flags),
+        NML_DBUS_META_PROPERTY_INIT_IGNORE("Ip4Address", "u"),
+        NML_DBUS_META_PROPERTY_INIT_O_PROP("Ip4Config",
+                                           PROP_IP4_CONFIG,
+                                           NMDevicePrivate,
+                                           property_o[PROPERTY_O_IDX_IP4_CONFIG],
+                                           nm_ip4_config_get_type),
+        NML_DBUS_META_PROPERTY_INIT_U("Ip4Connectivity",
+                                      PROP_IP4_CONNECTIVITY,
+                                      NMDevicePrivate,
+                                      ip4_connectivity),
+        NML_DBUS_META_PROPERTY_INIT_O_PROP("Ip6Config",
+                                           PROP_IP6_CONFIG,
+                                           NMDevicePrivate,
+                                           property_o[PROPERTY_O_IDX_IP6_CONFIG],
+                                           nm_ip6_config_get_type),
+        NML_DBUS_META_PROPERTY_INIT_U("Ip6Connectivity",
+                                      PROP_IP6_CONNECTIVITY,
+                                      NMDevicePrivate,
+                                      ip6_connectivity),
+        NML_DBUS_META_PROPERTY_INIT_S("IpInterface",
+                                      PROP_IP_INTERFACE,
+                                      NMDevicePrivate,
+                                      ip_interface),
+        NML_DBUS_META_PROPERTY_INIT_FCN("LldpNeighbors",
+                                        PROP_LLDP_NEIGHBORS,
+                                        "aa{sv}",
+                                        _notify_update_prop_lldp_neighbors),
+        NML_DBUS_META_PROPERTY_INIT_B("Managed", PROP_MANAGED, NMDevicePrivate, managed),
+        NML_DBUS_META_PROPERTY_INIT_U("Metered", PROP_METERED, NMDevicePrivate, metered),
+        NML_DBUS_META_PROPERTY_INIT_U("Mtu", PROP_MTU, NMDevicePrivate, mtu),
+        NML_DBUS_META_PROPERTY_INIT_B("NmPluginMissing",
+                                      PROP_NM_PLUGIN_MISSING,
+                                      NMDevicePrivate,
+                                      nm_plugin_missing),
+        NML_DBUS_META_PROPERTY_INIT_S("Path", PROP_PATH, NMDevicePrivate, path),
+        NML_DBUS_META_PROPERTY_INIT_S("PhysicalPortId",
+                                      PROP_PHYSICAL_PORT_ID,
+                                      NMDevicePrivate,
+                                      physical_port_id),
+        NML_DBUS_META_PROPERTY_INIT_B("Real", PROP_REAL, NMDevicePrivate, real),
+        NML_DBUS_META_PROPERTY_INIT_IGNORE("State", "u"),
+        NML_DBUS_META_PROPERTY_INIT_FCN("StateReason",
+                                        PROP_STATE_REASON,
+                                        "(uu)",
+                                        _notify_update_prop_state_reason),
+        NML_DBUS_META_PROPERTY_INIT_S("Udi", PROP_UDI, NMDevicePrivate, udi), ),
+    .base_struct_offset = G_STRUCT_OFFSET(NMDevice, _priv), );
+
+static void
+nm_device_class_init(NMDeviceClass *klass)
+{
+    GObjectClass * object_class    = G_OBJECT_CLASS(klass);
+    NMObjectClass *nm_object_class = NM_OBJECT_CLASS(klass);
+
+    g_type_class_add_private(klass, sizeof(NMDevicePrivate));
+
+    object_class->get_property = get_property;
+    object_class->set_property = set_property;
+    object_class->finalize     = finalize;
+
+    nm_object_class->register_client = register_client;
+
+    _NM_OBJECT_CLASS_INIT_PRIV_PTR_INDIRECT(nm_object_class, NMDevice);
+
+    _NM_OBJECT_CLASS_INIT_PROPERTY_O_FIELDS_N(nm_object_class, NMDevicePrivate, property_o);
+    _NM_OBJECT_CLASS_INIT_PROPERTY_AO_FIELDS_1(nm_object_class,
+                                               NMDevicePrivate,
+                                               available_connections);
+
+    klass->connection_compatible = connection_compatible;
+
+    /**
+     * NMDevice:interface:
+     *
+     * The interface of the device.
+     **/
+    obj_properties[PROP_INTERFACE] = g_param_spec_string(NM_DEVICE_INTERFACE,
+                                                         "",
+                                                         "",
+                                                         NULL,
+                                                         G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:ip-interface:
+     *
+     * The IP interface of the device which should be used for all IP-related
+     * operations like addressing and routing.
+     **/
+    obj_properties[PROP_IP_INTERFACE] =
+        g_param_spec_string(NM_DEVICE_IP_INTERFACE,
+                            "",
+                            "",
+                            NULL,
+                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:device-type:
+     *
+     * The numeric type of the device.
+     **/
+    obj_properties[PROP_DEVICE_TYPE] = g_param_spec_enum(NM_DEVICE_DEVICE_TYPE,
+                                                         "",
+                                                         "",
+                                                         NM_TYPE_DEVICE_TYPE,
+                                                         NM_DEVICE_TYPE_UNKNOWN,
+                                                         G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+    /**
+     * NMDevice:udi:
+     *
+     * An operating-system specific device hardware identifier; this is not
+     * unique to a specific hardware device across reboots or hotplugs.  It
+     * is an opaque string which for some device types (Bluetooth, Modem)
+     * contains an identifier provided by the underlying hardware service daemon
+     * such as Bluez or ModemManager, and clients can use this property to
+     * request more information about the device from those services.
+     **/
+    obj_properties[PROP_UDI] =
+        g_param_spec_string(NM_DEVICE_UDI, "", "", NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:path:
+     *
+     * The device path as exposed by the udev property ID_PATH.
+     *
+     * The string is backslash escaped (C escaping) for invalid
+     * characters. The escaping can be reverted with g_strcompress(),
+     * however the result may not be valid UTF-8.
+     *
+     * Since: 1.26
+     **/
+    obj_properties[PROP_PATH] = g_param_spec_string(NM_DEVICE_PATH,
+                                                    "",
+                                                    "",
+                                                    NULL,
+                                                    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:driver:
+     *
+     * The driver of the device.
+     **/
+    obj_properties[PROP_DRIVER] = g_param_spec_string(NM_DEVICE_DRIVER,
+                                                      "",
+                                                      "",
+                                                      NULL,
+                                                      G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:driver-version:
+     *
+     * The version of the device driver.
+     **/
+    obj_properties[PROP_DRIVER_VERSION] =
+        g_param_spec_string(NM_DEVICE_DRIVER_VERSION,
+                            "",
+                            "",
+                            NULL,
+                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:firmware-version:
+     *
+     * The firmware version of the device.
+     **/
+    obj_properties[PROP_FIRMWARE_VERSION] =
+        g_param_spec_string(NM_DEVICE_FIRMWARE_VERSION,
+                            "",
+                            "",
+                            NULL,
+                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:capabilities:
+     *
+     * The capabilities of the device.
+     **/
+    obj_properties[PROP_CAPABILITIES] =
+        g_param_spec_flags(NM_DEVICE_CAPABILITIES,
+                           "",
+                           "",
+                           NM_TYPE_DEVICE_CAPABILITIES,
+                           NM_DEVICE_CAP_NONE,
+                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:real:
+     *
+     * Whether the device is real or is a placeholder device that could
+     * be created automatically by NetworkManager if one of its
+     * #NMDevice:available-connections was activated.
+     *
+     * Since: 1.2
+     **/
+    obj_properties[PROP_REAL] = g_param_spec_boolean(NM_DEVICE_REAL,
+                                                     "",
+                                                     "",
+                                                     FALSE,
+                                                     G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:managed:
+     *
+     * Whether the device is managed by NetworkManager.
+     **/
+    obj_properties[PROP_MANAGED] = g_param_spec_boolean(NM_DEVICE_MANAGED,
+                                                        "",
+                                                        "",
+                                                        FALSE,
+                                                        G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:autoconnect:
+     *
+     * Whether the device can auto-activate a connection.
+     *
+     * The property setter is a synchronous D-Bus call. This is deprecated since 1.22.
+     **/
+    obj_properties[PROP_AUTOCONNECT] =
+        g_param_spec_boolean(NM_DEVICE_AUTOCONNECT,
+                             "",
+                             "",
+                             FALSE,
+                             G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:firmware-missing:
+     *
+     * When %TRUE indicates the device is likely missing firmware required
+     * for its operation.
+     **/
+    obj_properties[PROP_FIRMWARE_MISSING] =
+        g_param_spec_boolean(NM_DEVICE_FIRMWARE_MISSING,
+                             "",
+                             "",
+                             FALSE,
+                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:nm-plugin-missing:
+     *
+     * When %TRUE indicates that the NetworkManager plugin for the device
+     * is not installed.
+     *
+     * Since: 1.2
+     **/
+    obj_properties[PROP_NM_PLUGIN_MISSING] =
+        g_param_spec_boolean(NM_DEVICE_NM_PLUGIN_MISSING,
+                             "",
+                             "",
+                             FALSE,
+                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:ip4-config:
+     *
+     * The #NMIP4Config of the device.
+     **/
+    obj_properties[PROP_IP4_CONFIG] =
+        g_param_spec_object(NM_DEVICE_IP4_CONFIG,
+                            "",
+                            "",
+                            NM_TYPE_IP_CONFIG,
+                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:dhcp4-config:
+     *
+     * The IPv4 #NMDhcpConfig of the device.
+     **/
+    obj_properties[PROP_DHCP4_CONFIG] =
+        g_param_spec_object(NM_DEVICE_DHCP4_CONFIG,
+                            "",
+                            "",
+                            NM_TYPE_DHCP_CONFIG,
+                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:ip6-config:
+     *
+     * The IPv6 #NMIPConfig of the device.
+     **/
+    obj_properties[PROP_IP6_CONFIG] =
+        g_param_spec_object(NM_DEVICE_IP6_CONFIG,
+                            "",
+                            "",
+                            NM_TYPE_IP_CONFIG,
+                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:dhcp6-config:
+     *
+     * The IPv6 #NMDhcpConfig of the device.
+     **/
+    obj_properties[PROP_DHCP6_CONFIG] =
+        g_param_spec_object(NM_DEVICE_DHCP6_CONFIG,
+                            "",
+                            "",
+                            NM_TYPE_DHCP_CONFIG,
+                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:ip4-connectivity:
+     *
+     * The IPv4 connectivity state of the device.
+     *
+     * Since: 1.16
+     **/
+    obj_properties[PROP_IP4_CONNECTIVITY] =
+        g_param_spec_enum(NM_DEVICE_IP4_CONNECTIVITY,
+                          "",
+                          "",
+                          NM_TYPE_CONNECTIVITY_STATE,
+                          NM_CONNECTIVITY_UNKNOWN,
+                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:ip6-connectivity:
+     *
+     * The IPv6 connectivity state of the device.
+     *
+     * Since: 1.16
+     **/
+    obj_properties[PROP_IP6_CONNECTIVITY] =
+        g_param_spec_enum(NM_DEVICE_IP6_CONNECTIVITY,
+                          "",
+                          "",
+                          NM_TYPE_CONNECTIVITY_STATE,
+                          NM_CONNECTIVITY_UNKNOWN,
+                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:state:
+     *
+     * The state of the device.
+     **/
+    obj_properties[PROP_STATE] = g_param_spec_enum(NM_DEVICE_STATE,
+                                                   "",
+                                                   "",
+                                                   NM_TYPE_DEVICE_STATE,
+                                                   NM_DEVICE_STATE_UNKNOWN,
+                                                   G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:state-reason:
+     *
+     * The reason for the device state.
+     **/
+    obj_properties[PROP_STATE_REASON] =
+        g_param_spec_uint(NM_DEVICE_STATE_REASON,
+                          "",
+                          "",
+                          0,
+                          G_MAXUINT32,
+                          0,
+                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:active-connection:
+     *
+     * The #NMActiveConnection object that "owns" this device during activation.
+     **/
+    obj_properties[PROP_ACTIVE_CONNECTION] =
+        g_param_spec_object(NM_DEVICE_ACTIVE_CONNECTION,
+                            "",
+                            "",
+                            NM_TYPE_ACTIVE_CONNECTION,
+                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:available-connections: (type GPtrArray(NMRemoteConnection))
+     *
+     * The available connections of the device
+     **/
+    obj_properties[PROP_AVAILABLE_CONNECTIONS] =
+        g_param_spec_boxed(NM_DEVICE_AVAILABLE_CONNECTIONS,
+                           "",
+                           "",
+                           G_TYPE_PTR_ARRAY,
+                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:vendor:
+     *
+     * The vendor string of the device.
+     **/
+    obj_properties[PROP_VENDOR] = g_param_spec_string(NM_DEVICE_VENDOR,
+                                                      "",
+                                                      "",
+                                                      NULL,
+                                                      G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:product:
+     *
+     * The product string of the device.
+     **/
+    obj_properties[PROP_PRODUCT] = g_param_spec_string(NM_DEVICE_PRODUCT,
+                                                       "",
+                                                       "",
+                                                       NULL,
+                                                       G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:physical-port-id:
+     *
+     * The physical port ID of the device. (See
+     * nm_device_get_physical_port_id().)
+     **/
+    obj_properties[PROP_PHYSICAL_PORT_ID] =
+        g_param_spec_string(NM_DEVICE_PHYSICAL_PORT_ID,
+                            "",
+                            "",
+                            NULL,
+                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:mtu:
+     *
+     * The MTU of the device.
+     **/
+    obj_properties[PROP_MTU] = g_param_spec_uint(NM_DEVICE_MTU,
+                                                 "",
+                                                 "",
+                                                 0,
+                                                 G_MAXUINT32,
+                                                 0,
+                                                 G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:metered:
+     *
+     * Whether the device is metered.
+     *
+     * Since: 1.2
+     **/
+    obj_properties[PROP_METERED] = g_param_spec_uint(NM_DEVICE_METERED,
+                                                     "",
+                                                     "",
+                                                     0,
+                                                     G_MAXUINT32,
+                                                     NM_METERED_UNKNOWN,
+                                                     G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:lldp-neighbors:
+     *
+     * The LLDP neighbors.
+     **/
+    obj_properties[PROP_LLDP_NEIGHBORS] =
+        g_param_spec_boxed(NM_DEVICE_LLDP_NEIGHBORS,
+                           "",
+                           "",
+                           G_TYPE_PTR_ARRAY,
+                           G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:interface-flags:
+     *
+     * The interface flags.
+     *
+     * Since: 1.22
+     **/
+    obj_properties[PROP_INTERFACE_FLAGS] =
+        g_param_spec_uint(NM_DEVICE_INTERFACE_FLAGS,
+                          "",
+                          "",
+                          0,
+                          G_MAXUINT32,
+                          0,
+                          G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    /**
+     * NMDevice:hw-address:
+     *
+     * The hardware address of the device.
+     *
+     * Since: 1.24
+     **/
+    obj_properties[PROP_HW_ADDRESS] =
+        g_param_spec_string(NM_DEVICE_HW_ADDRESS,
+                            "",
+                            "",
+                            NULL,
+                            G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    _nml_dbus_meta_class_init_with_properties(object_class, &_nml_dbus_meta_iface_nm_device);
+
+    /**
+     * NMDevice::state-changed:
+     * @device: the device object that received the signal
+     * @new_state: the new state of the device
+     * @old_state: the previous state of the device
+     * @reason: the reason describing the state change
+     *
+     * Notifies the state change of a #NMDevice.
+     **/
+    signals[STATE_CHANGED] = g_signal_new("state-changed",
+                                          G_OBJECT_CLASS_TYPE(object_class),
+                                          G_SIGNAL_RUN_FIRST,
+                                          0,
+                                          NULL,
+                                          NULL,
+                                          NULL,
+                                          G_TYPE_NONE,
+                                          3,
+                                          G_TYPE_UINT,
+                                          G_TYPE_UINT,
+                                          G_TYPE_UINT);
+}
+
+/**
+ * nm_device_get_iface:
+ * @device: a #NMDevice
+ *
+ * Gets the interface name of the #NMDevice.
+ *
+ * Returns: the interface of the device. This is the internal string used by the
+ * device, and must not be modified.
+ **/
+const char *
+nm_device_get_iface(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return _nml_coerce_property_str_not_empty(NM_DEVICE_GET_PRIVATE(device)->interface);
+}
+
+/**
+ * nm_device_get_ip_iface:
+ * @device: a #NMDevice
+ *
+ * Gets the IP interface name of the #NMDevice over which IP traffic flows
+ * when the device is in the ACTIVATED state.
+ *
+ * Returns: the IP traffic interface of the device. This is the internal string
+ * used by the device, and must not be modified.
+ **/
+const char *
+nm_device_get_ip_iface(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return _nml_coerce_property_str_not_empty(NM_DEVICE_GET_PRIVATE(device)->ip_interface);
+}
+
+/**
+ * nm_device_get_device_type:
+ * @device: a #NMDevice
+ *
+ * Returns the numeric type of the #NMDevice, ie Ethernet, Wi-Fi, etc.
+ *
+ * Returns: the device type
+ **/
+NMDeviceType
+nm_device_get_device_type(NMDevice *self)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(self), NM_DEVICE_TYPE_UNKNOWN);
+
+    return coerce_type(NM_DEVICE_GET_PRIVATE(self)->device_type);
+}
+
+/**
+ * nm_device_get_udi:
+ * @device: a #NMDevice
+ *
+ * Gets the Unique Device Identifier of the #NMDevice.
+ *
+ * Returns: the Unique Device Identifier of the device.  This identifier may be
+ * used to gather more information about the device from various operating
+ * system services like udev or sysfs.
+ **/
+const char *
+nm_device_get_udi(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return _nml_coerce_property_str_not_empty(NM_DEVICE_GET_PRIVATE(device)->udi);
+}
+
+/**
+ * nm_device_get_path:
+ * @device: a #NMDevice
+ *
+ * Gets the path of the #NMDevice as exposed by the udev property ID_PATH.
+ *
+ * Returns: the path of the device.
+ *
+ * The string is backslash escaped (C escaping) for invalid characters. The escaping
+ * can be reverted with g_strcompress(), however the result may not be valid UTF-8.
+ *
+ * Since: 1.26
+ **/
+const char *
+nm_device_get_path(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return _nml_coerce_property_str_not_empty(NM_DEVICE_GET_PRIVATE(device)->path);
+}
+
+/**
+ * nm_device_get_driver:
+ * @device: a #NMDevice
+ *
+ * Gets the driver of the #NMDevice.
+ *
+ * Returns: the driver of the device. This is the internal string used by the
+ * device, and must not be modified.
+ **/
+const char *
+nm_device_get_driver(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return _nml_coerce_property_str_not_empty(NM_DEVICE_GET_PRIVATE(device)->driver);
+}
+
+/**
+ * nm_device_get_driver_version:
+ * @device: a #NMDevice
+ *
+ * Gets the driver version of the #NMDevice.
+ *
+ * Returns: the version of the device driver. This is the internal string used by the
+ * device, and must not be modified.
+ **/
+const char *
+nm_device_get_driver_version(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return _nml_coerce_property_str_not_empty(NM_DEVICE_GET_PRIVATE(device)->driver_version);
+}
+
+/**
+ * nm_device_get_firmware_version:
+ * @device: a #NMDevice
+ *
+ * Gets the firmware version of the #NMDevice.
+ *
+ * Returns: the firmware version of the device. This is the internal string used by the
+ * device, and must not be modified.
+ **/
+const char *
+nm_device_get_firmware_version(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return _nml_coerce_property_str_not_empty(NM_DEVICE_GET_PRIVATE(device)->firmware_version);
+}
+
+/**
+ * nm_device_get_type_description:
+ * @device: a #NMDevice
+ *
+ * Gets a (non-localized) description of the type of device that
+ * @device is.
+ *
+ * Returns: the type description of the device. This is the internal
+ * string used by the device, and must not be modified.
+ **/
+const char *
+nm_device_get_type_description(NMDevice *device)
+{
+    NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE(device);
+    const char *     desc, *typename;
+
+    /* BEWARE: this function should return the same value
+     * as nm_device_get_type_description() in nm-core. */
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    if (priv->type_description)
+        return _nml_coerce_property_str_not_empty(priv->type_description);
+
+    if (NM_DEVICE_GET_CLASS(device)->get_type_description) {
+        desc = NM_DEVICE_GET_CLASS(device)->get_type_description(device);
+        if (desc)
+            return desc;
+    }
+
+    typename = G_OBJECT_TYPE_NAME(device);
+    if (g_str_has_prefix(typename, "NMDevice")) {
+        typename += 8;
+        if (nm_streq(typename, "Veth"))
+            typename = "Ethernet";
+    }
+    priv->type_description = g_ascii_strdown(typename, -1);
+
+    return _nml_coerce_property_str_not_empty(priv->type_description);
+}
+
+NMLDBusNotifyUpdatePropFlags
+_nm_device_notify_update_prop_hw_address(NMClient *              client,
+                                         NMLDBusObject *         dbobj,
+                                         const NMLDBusMetaIface *meta_iface,
+                                         guint                   dbus_property_idx,
+                                         GVariant *              value)
+{
+    NMDevice *       self    = NM_DEVICE(dbobj->nmobj);
+    NMDevicePrivate *priv    = NM_DEVICE_GET_PRIVATE(self);
+    gboolean         is_new  = (meta_iface == &_nml_dbus_meta_iface_nm_device);
+    gboolean         changed = FALSE;
+
+    if (!is_new && priv->hw_address_is_new) {
+        /* once the instance is marked to honor the new property, the
+         * changed signal for the old variant gets ignored. */
+        goto out;
+    }
+
+    if (!value) {
+        if (nm_clear_g_free(&priv->hw_address))
+            changed = TRUE;
+        goto out;
+    }
+
+    priv->hw_address_is_new = is_new;
+
+    nm_utils_strdup_reset(&priv->hw_address,
+                          _nml_coerce_property_str_not_empty(g_variant_get_string(value, NULL)));
+
+    /* always emit a changed signal here, even if "priv->hw_address" might be unchanged.
+     * We want to emit the signal because we received a PropertiesChanged signal on D-Bus,
+     * even if nothing actually changed. */
+    changed = TRUE;
+
+out:
+    if (changed) {
+        _nm_client_queue_notify_object(client, self, obj_properties[PROP_HW_ADDRESS]);
+    }
+    return NML_DBUS_NOTIFY_UPDATE_PROP_FLAGS_NONE;
+}
+
+/**
+ * nm_device_get_hw_address:
+ * @device: a #NMDevice
+ *
+ * Gets the current a hardware address (MAC) for the @device.
+ *
+ * Returns: the current MAC of the device, or %NULL.
+ * This is the internal string used by the device, and must not be modified.
+ **/
+const char *
+nm_device_get_hw_address(NMDevice *device)
+{
+    NMDevicePrivate *priv;
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    priv = NM_DEVICE_GET_PRIVATE(device);
+
+    nm_assert(!nm_streq0(priv->hw_address, ""));
+
+    return priv->hw_address;
+}
+
+/**
+ * nm_device_get_capabilities:
+ * @device: a #NMDevice
+ *
+ * Gets the device' capabilities.
+ *
+ * Returns: the capabilities
+ **/
+NMDeviceCapabilities
+nm_device_get_capabilities(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), 0);
+
+    return NM_DEVICE_GET_PRIVATE(device)->capabilities;
+}
+
+/**
+ * nm_device_get_managed:
+ * @device: a #NMDevice
+ *
+ * Whether the #NMDevice is managed by NetworkManager.
+ *
+ * Returns: %TRUE if the device is managed by NetworkManager
+ **/
+gboolean
+nm_device_get_managed(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), 0);
+
+    return NM_DEVICE_GET_PRIVATE(device)->managed;
+}
+
+/**
+ * nm_device_set_managed:
+ * @device: a #NMDevice
+ * @managed: %TRUE to make the device managed by NetworkManager.
+ *
+ * Enables or disables management of  #NMDevice by NetworkManager.
+ *
+ * Since: 1.2
+ *
+ * Deprecated: 1.22: Use the async command nm_client_dbus_set_property() on
+ * nm_object_get_path(), interface %NM_DBUS_INTERFACE_DEVICE to set the
+ * "Managed" property to a "(b)" boolean value.
+ * This function is deprecated because it calls a synchronous D-Bus method
+ * and modifies the content of the NMClient cache client side. Also, it does
+ * not emit a property changed signal.
+ **/
+void
+nm_device_set_managed(NMDevice *device, gboolean managed)
+{
+    g_return_if_fail(NM_IS_DEVICE(device));
+
+    managed = !!managed;
+
+    NM_DEVICE_GET_PRIVATE(device)->managed = managed;
+
+    _nm_client_set_property_sync_legacy(_nm_object_get_client(device),
+                                        _nm_object_get_path(device),
+                                        NM_DBUS_INTERFACE_DEVICE,
+                                        "Managed",
+                                        "b",
+                                        managed);
+}
+
+/**
+ * nm_device_get_autoconnect:
+ * @device: a #NMDevice
+ *
+ * Whether the #NMDevice can be autoconnected.
+ *
+ * Returns: %TRUE if the device is allowed to be autoconnected
+ **/
+gboolean
+nm_device_get_autoconnect(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+
+    return NM_DEVICE_GET_PRIVATE(device)->autoconnect;
+}
+
+/**
+ * nm_device_set_autoconnect:
+ * @device: a #NMDevice
+ * @autoconnect: %TRUE to enable autoconnecting
+ *
+ * Enables or disables automatic activation of the #NMDevice.
+ *
+ * Deprecated: 1.22: Use the async command nm_client_dbus_set_property() on
+ * nm_object_get_path(), %NM_DBUS_INTERFACE_DEVICE to set "Autoconnect" property to a "(b)" value.
+ * This function is deprecated because it calls a synchronous D-Bus method
+ * and modifies the content of the NMClient cache client side.
+ **/
+void
+nm_device_set_autoconnect(NMDevice *device, gboolean autoconnect)
+{
+    g_return_if_fail(NM_IS_DEVICE(device));
+
+    NM_DEVICE_GET_PRIVATE(device)->autoconnect = autoconnect;
+
+    _nm_client_set_property_sync_legacy(_nm_object_get_client(device),
+                                        _nm_object_get_path(device),
+                                        NM_DBUS_INTERFACE_DEVICE,
+                                        "Autoconnect",
+                                        "b",
+                                        autoconnect);
+}
+
+/**
+ * nm_device_get_firmware_missing:
+ * @device: a #NMDevice
+ *
+ * Indicates that firmware required for the device's operation is likely
+ * to be missing.
+ *
+ * Returns: %TRUE if firmware required for the device's operation is likely
+ * to be missing.
+ **/
+gboolean
+nm_device_get_firmware_missing(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), 0);
+
+    return NM_DEVICE_GET_PRIVATE(device)->firmware_missing;
+}
+
+/**
+ * nm_device_get_nm_plugin_missing:
+ * @device: a #NMDevice
+ *
+ * Indicates that the NetworkManager plugin for the device is not installed.
+ *
+ * Returns: %TRUE if the device plugin not installed.
+ *
+ * Since: 1.2
+ **/
+gboolean
+nm_device_get_nm_plugin_missing(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+
+    return NM_DEVICE_GET_PRIVATE(device)->nm_plugin_missing;
+}
+
+/**
+ * nm_device_get_ip4_config:
+ * @device: a #NMDevice
+ *
+ * Gets the current IPv4 #NMIPConfig associated with the #NMDevice.
+ *
+ * You can alternatively use nm_active_connection_get_ip4_config(), which also
+ * works with VPN connections.
+ *
+ * Returns: (transfer none): the IPv4 #NMIPConfig, or %NULL if the device is not
+ * activated.
+ **/
+NMIPConfig *
+nm_device_get_ip4_config(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return nml_dbus_property_o_get_obj(
+        &NM_DEVICE_GET_PRIVATE(device)->property_o[PROPERTY_O_IDX_IP4_CONFIG]);
+}
+
+/**
+ * nm_device_get_dhcp4_config:
+ * @device: a #NMDevice
+ *
+ * Gets the current IPv4 #NMDhcpConfig associated with the #NMDevice.
+ *
+ * You can alternatively use nm_active_connection_get_dhcp4_config(), which also
+ * works with VPN connections.
+ *
+ * Returns: (transfer none): the IPv4 #NMDhcpConfig, or %NULL if the device is
+ * not activated or not using DHCP.
+ **/
+NMDhcpConfig *
+nm_device_get_dhcp4_config(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return nml_dbus_property_o_get_obj(
+        &NM_DEVICE_GET_PRIVATE(device)->property_o[PROPERTY_O_IDX_DHCP4_CONFIG]);
+}
+
+/**
+ * nm_device_get_ip6_config:
+ * @device: a #NMDevice
+ *
+ * Gets the current IPv6 #NMIPConfig associated with the #NMDevice.
+ *
+ * You can alternatively use nm_active_connection_get_ip6_config(), which also
+ * works with VPN connections.
+ *
+ * Returns: (transfer none): the IPv6 #NMIPConfig or %NULL if the device is not activated.
+ **/
+NMIPConfig *
+nm_device_get_ip6_config(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return nml_dbus_property_o_get_obj(
+        &NM_DEVICE_GET_PRIVATE(device)->property_o[PROPERTY_O_IDX_IP6_CONFIG]);
+}
+
+/**
+ * nm_device_get_dhcp6_config:
+ * @device: a #NMDevice
+ *
+ * Gets the current IPv6 #NMDhcpConfig associated with the #NMDevice.
+ *
+ * You can alternatively use nm_active_connection_get_dhcp6_config(), which also
+ * works with VPN connections.
+ *
+ * Returns: (transfer none): the IPv6 #NMDhcpConfig, or %NULL if the device is
+ * not activated or not using DHCPv6.
+ **/
+NMDhcpConfig *
+nm_device_get_dhcp6_config(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return nml_dbus_property_o_get_obj(
+        &NM_DEVICE_GET_PRIVATE(device)->property_o[PROPERTY_O_IDX_DHCP6_CONFIG]);
+}
+
+/**
+ * nm_device_get_connectivity:
+ * @device: a #NMDevice
+ * @addr_family: network address family
+ *
+ * The connectivity state of the device for given address family.
+ * Supported address families are %AF_INET for IPv4, %AF_INET6
+ * for IPv6 or %AF_UNSPEC for any.
+ *
+ * Returns: the current connectivity state
+ *
+ * Since: 1.16
+ **/
+NMConnectivityState
+nm_device_get_connectivity(NMDevice *device, int addr_family)
+{
+    NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE(device);
+
+    switch (addr_family) {
+    case AF_INET:
+        return priv->ip4_connectivity;
+    case AF_INET6:
+        return priv->ip6_connectivity;
+    case AF_UNSPEC:
+        return NM_MAX(priv->ip4_connectivity, priv->ip6_connectivity);
+    default:
+        g_return_val_if_reached(NM_CONNECTIVITY_UNKNOWN);
+    }
+}
+
+/**
+ * nm_device_get_interface_flags:
+ * @device: a #NMDevice
+ *
+ * Gets the interface flags of the device.
+ *
+ * Returns: the flags
+ *
+ * Since: 1.22
+ **/
+NMDeviceInterfaceFlags
+nm_device_get_interface_flags(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NM_DEVICE_INTERFACE_FLAG_NONE);
+
+    return NM_DEVICE_GET_PRIVATE(device)->interface_flags;
+}
+
+/**
+ * nm_device_get_state:
+ * @device: a #NMDevice
+ *
+ * Gets the current #NMDevice state.
+ *
+ * Returns: the current device state
+ **/
+NMDeviceState
+nm_device_get_state(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NM_DEVICE_STATE_UNKNOWN);
+
+    return NM_DEVICE_GET_PRIVATE(device)->state;
+}
+
+/**
+ * nm_device_get_state_reason:
+ * @device: a #NMDevice
+ *
+ * Gets the reason for entering the current #NMDevice state.
+ *
+ * Returns: the reason for entering the current device state
+ **/
+NMDeviceStateReason
+nm_device_get_state_reason(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NM_DEVICE_STATE_REASON_UNKNOWN);
+
+    return NM_DEVICE_GET_PRIVATE(device)->state_reason;
+}
+
+/**
+ * nm_device_get_active_connection:
+ * @device: a #NMDevice
+ *
+ * Gets the #NMActiveConnection object which owns this device during activation.
+ *
+ * Returns: (transfer none): the #NMActiveConnection or %NULL if the device is
+ * not part of an active connection
+ **/
+NMActiveConnection *
+nm_device_get_active_connection(NMDevice *device)
+{
+    NMActiveConnection *ac;
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    ac = nml_dbus_property_o_get_obj(
+        &NM_DEVICE_GET_PRIVATE(device)->property_o[PROPERTY_O_IDX_ACTIVE_CONNECTION]);
+
+    nm_assert(!ac || NM_IS_ACTIVE_CONNECTION(ac));
+    return ac;
+}
+
+/**
+ * nm_device_get_available_connections:
+ * @device: a #NMDevice
+ *
+ * Gets the #NMRemoteConnections currently known to the daemon that could
+ * be activated on @device.
+ *
+ * Returns: (element-type NMRemoteConnection): the #GPtrArray
+ * containing #NMRemoteConnections. This is the internal copy used by
+ * the connection, and must not be modified.
+ **/
+const GPtrArray *
+nm_device_get_available_connections(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return nml_dbus_property_ao_get_objs_as_ptrarray(
+        &NM_DEVICE_GET_PRIVATE(device)->available_connections);
+}
+
+static const char *
+get_type_name(NMDevice *device)
+{
+    switch (nm_device_get_device_type(device)) {
+    case NM_DEVICE_TYPE_ETHERNET:
+        return _("Ethernet");
+    case NM_DEVICE_TYPE_WIFI:
+        return _("Wi-Fi");
+    case NM_DEVICE_TYPE_BT:
+        return _("Bluetooth");
+    case NM_DEVICE_TYPE_OLPC_MESH:
+        return _("OLPC Mesh");
+    case NM_DEVICE_TYPE_OVS_INTERFACE:
+        return _("Open vSwitch Interface");
+    case NM_DEVICE_TYPE_OVS_PORT:
+        return _("Open vSwitch Port");
+    case NM_DEVICE_TYPE_OVS_BRIDGE:
+        return _("Open vSwitch Bridge");
+    case NM_DEVICE_TYPE_WIMAX:
+        return _("WiMAX");
+    case NM_DEVICE_TYPE_MODEM:
+        return _("Mobile Broadband");
+    case NM_DEVICE_TYPE_INFINIBAND:
+        return _("InfiniBand");
+    case NM_DEVICE_TYPE_BOND:
+        return _("Bond");
+    case NM_DEVICE_TYPE_TEAM:
+        return _("Team");
+    case NM_DEVICE_TYPE_BRIDGE:
+        return _("Bridge");
+    case NM_DEVICE_TYPE_VLAN:
+        return _("VLAN");
+    case NM_DEVICE_TYPE_ADSL:
+        return _("ADSL");
+    case NM_DEVICE_TYPE_MACVLAN:
+        return _("MACVLAN");
+    case NM_DEVICE_TYPE_VXLAN:
+        return _("VXLAN");
+    case NM_DEVICE_TYPE_IP_TUNNEL:
+        return _("IPTunnel");
+    case NM_DEVICE_TYPE_TUN:
+        return _("Tun");
+    case NM_DEVICE_TYPE_VETH:
+        return _("Veth");
+    case NM_DEVICE_TYPE_MACSEC:
+        return _("MACsec");
+    case NM_DEVICE_TYPE_DUMMY:
+        return _("Dummy");
+    case NM_DEVICE_TYPE_PPP:
+        return _("PPP");
+    case NM_DEVICE_TYPE_WPAN:
+        return _("IEEE 802.15.4");
+    case NM_DEVICE_TYPE_6LOWPAN:
+        return _("6LoWPAN");
+    case NM_DEVICE_TYPE_WIREGUARD:
+        return _("WireGuard");
+    case NM_DEVICE_TYPE_WIFI_P2P:
+        return _("Wi-Fi P2P");
+    case NM_DEVICE_TYPE_VRF:
+        return _("VRF");
+    case NM_DEVICE_TYPE_GENERIC:
+    case NM_DEVICE_TYPE_UNUSED1:
+    case NM_DEVICE_TYPE_UNUSED2:
+    case NM_DEVICE_TYPE_UNKNOWN:
+        break;
+    }
+    return _("Unknown");
+}
+
+static char *
+get_device_type_name_with_iface(NMDevice *device)
+{
+    const char *type_name = get_type_name(device);
+
+    switch (nm_device_get_device_type(device)) {
+    case NM_DEVICE_TYPE_BOND:
+    case NM_DEVICE_TYPE_TEAM:
+    case NM_DEVICE_TYPE_BRIDGE:
+    case NM_DEVICE_TYPE_VLAN:
+        return g_strdup_printf("%s (%s)", type_name, nm_device_get_iface(device));
+    default:
+        return g_strdup(type_name);
+    }
+}
+
+static char *
+get_device_generic_type_name_with_iface(NMDevice *device)
+{
+    switch (nm_device_get_device_type(device)) {
+    case NM_DEVICE_TYPE_ETHERNET:
+    case NM_DEVICE_TYPE_INFINIBAND:
+        return g_strdup(_("Wired"));
+    default:
+        return get_device_type_name_with_iface(device);
+    }
+}
+
+static const char *
+get_bus_name(NMDevice *device)
+{
+    NMDevicePrivate *   priv = NM_DEVICE_GET_PRIVATE(device);
+    struct udev_device *udevice;
+    const char *        ifname;
+    const char *        bus;
+
+    if (priv->bus_name)
+        goto out;
+
+    if (!priv->udev)
+        return NULL;
+
+    ifname = nm_device_get_iface(device);
+    if (!ifname)
+        return NULL;
+
+    udevice = udev_device_new_from_subsystem_sysname(priv->udev, "net", ifname);
+    if (!udevice) {
+        udevice = udev_device_new_from_subsystem_sysname(priv->udev, "tty", ifname);
+        if (!udevice)
+            return NULL;
+    }
+    bus = udev_device_get_property_value(udevice, "ID_BUS");
+    if (!g_strcmp0(bus, "pci"))
+        priv->bus_name = g_strdup(_("PCI"));
+    else if (!g_strcmp0(bus, "usb"))
+        priv->bus_name = g_strdup(_("USB"));
+    else {
+        /* Use "" instead of NULL so we can tell later that we've
+         * already tried.
+         */
+        priv->bus_name = g_strdup("");
+    }
+    udev_device_unref(udevice);
+
+out:
+    if (*priv->bus_name)
+        return priv->bus_name;
+    else
+        return NULL;
+}
+
+static char *
+_get_udev_property(NMDevice *  device,
+                   const char *enc_prop, /* ID_XXX_ENC */
+                   const char *db_prop)  /* ID_XXX_FROM_DATABASE */
+{
+    NMDevicePrivate *   priv = NM_DEVICE_GET_PRIVATE(device);
+    struct udev_device *udev_device;
+    struct udev_device *tmpdev;
+    const char *        ifname;
+    guint32             count     = 0;
+    char *              enc_value = NULL;
+    char *              db_value  = NULL;
+
+    if (!priv->udev)
+        return NULL;
+
+    ifname = nm_device_get_iface(device);
+    if (!ifname)
+        return NULL;
+
+    udev_device = udev_device_new_from_subsystem_sysname(priv->udev, "net", ifname);
+    if (!udev_device) {
+        udev_device = udev_device_new_from_subsystem_sysname(priv->udev, "tty", ifname);
+        if (!udev_device)
+            return NULL;
+    }
+    /* Walk up the chain of the device and its parents a few steps to grab
+     * vendor and device ID information off it.
+     */
+    tmpdev = udev_device;
+    while ((count++ < 3) && tmpdev && !enc_value) {
+        if (!enc_value)
+            enc_value =
+                nm_udev_utils_property_decode_cp(udev_device_get_property_value(tmpdev, enc_prop));
+        if (!db_value)
+            db_value = g_strdup(udev_device_get_property_value(tmpdev, db_prop));
+
+        tmpdev = udev_device_get_parent(tmpdev);
+    }
+    udev_device_unref(udev_device);
+
+    /* Prefer the hwdata database value over what comes directly
+     * from the device. */
+    if (db_value) {
+        g_free(enc_value);
+        return db_value;
+    }
+
+    return enc_value;
+}
+
+static char *
+_get_udev_property_utf8safe(NMDevice *  device,
+                            const char *enc_prop, /* ID_XXX_ENC */
+                            const char *db_prop)  /* ID_XXX_FROM_DATABASE */
+{
+    return nm_utils_str_utf8safe_escape_take(_get_udev_property(device, enc_prop, db_prop),
+                                             NM_UTILS_STR_UTF8_SAFE_FLAG_ESCAPE_CTRL);
+}
+
+/**
+ * nm_device_get_product:
+ * @device: a #NMDevice
+ *
+ * Gets the product string of the #NMDevice.
+ *
+ * Returns: the product name of the device. This is the internal string used by the
+ * device, and must not be modified.
+ *
+ * The string is backslash escaped (C escaping) for invalid characters. The escaping
+ * can be reverted with g_strcompress(), however the result may not be valid UTF-8.
+ **/
+const char *
+nm_device_get_product(NMDevice *device)
+{
+    NMDevicePrivate *priv;
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    priv = NM_DEVICE_GET_PRIVATE(device);
+    if (!priv->product) {
+        priv->product =
+            _get_udev_property_utf8safe(device, "ID_MODEL_ENC", "ID_MODEL_FROM_DATABASE");
+
+        /* Sometimes ID_PRODUCT_FROM_DATABASE is used? */
+        if (!priv->product)
+            priv->product =
+                _get_udev_property_utf8safe(device, "ID_MODEL_ENC", "ID_PRODUCT_FROM_DATABASE");
+
+        if (!priv->product)
+            priv->product = g_strdup("");
+    }
+
+    return priv->product;
+}
+
+/**
+ * nm_device_get_vendor:
+ * @device: a #NMDevice
+ *
+ * Gets the vendor string of the #NMDevice.
+ *
+ * Returns: the vendor name of the device. This is the internal string used by the
+ * device, and must not be modified.
+ *
+ * The string is backslash escaped (C escaping) for invalid characters. The escaping
+ * can be reverted with g_strcompress(), however the result may not be valid UTF-8.
+ **/
+const char *
+nm_device_get_vendor(NMDevice *device)
+{
+    NMDevicePrivate *priv;
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    priv = NM_DEVICE_GET_PRIVATE(device);
+
+    if (!priv->vendor)
+        priv->vendor =
+            _get_udev_property_utf8safe(device, "ID_VENDOR_ENC", "ID_VENDOR_FROM_DATABASE");
+
+    if (!priv->vendor)
+        priv->vendor = g_strdup("");
+
+    return priv->vendor;
+}
+
+static void
+ensure_description(NMDevice *device)
+{
+    NMDevicePrivate *priv = NM_DEVICE_GET_PRIVATE(device);
+    GParamSpec *     name_prop;
+    gs_free char *   short_product = NULL;
+
+    priv->short_vendor = nm_str_realloc(nm_utils_fixup_vendor_string(nm_device_get_vendor(device)));
+
+    /* Grab device's preferred name, if any */
+    name_prop = g_object_class_find_property(G_OBJECT_GET_CLASS(G_OBJECT(device)), "name");
+    if (name_prop) {
+        g_object_get(device, "name", &priv->description, NULL);
+        if (priv->description && priv->description[0])
+            return;
+        nm_clear_g_free(&priv->description);
+    }
+
+    if (!priv->short_vendor) {
+        priv->description = g_strdup(nm_device_get_iface(device) ?: "");
+        return;
+    }
+
+    short_product = nm_utils_fixup_product_string(nm_device_get_product(device));
+    if (short_product == NULL)
+        short_product = g_strdup(get_type_name(device));
+
+    /* Another quick hack; if all of the fixed up vendor string
+     * is found in product, ignore the vendor.
+     */
+    {
+        gs_free char *pdown = g_ascii_strdown(short_product, -1);
+        gs_free char *vdown = g_ascii_strdown(priv->short_vendor, -1);
+
+        if (!strstr(pdown, vdown))
+            priv->description = g_strconcat(priv->short_vendor, " ", short_product, NULL);
+        else
+            priv->description = g_steal_pointer(&short_product);
+    }
+}
+
+static const char *
+get_short_vendor(NMDevice *device)
+{
+    NMDevicePrivate *priv;
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    priv = NM_DEVICE_GET_PRIVATE(device);
+
+    if (!priv->description)
+        ensure_description(device);
+
+    return priv->short_vendor;
+}
+
+/**
+ * nm_device_get_description:
+ * @device: an #NMDevice
+ *
+ * Gets a description of @device, based on its vendor and product names.
+ *
+ * Returns: a description of @device. If either the vendor or the
+ *   product name is unknown, this returns the interface name.
+ */
+const char *
+nm_device_get_description(NMDevice *device)
+{
+    NMDevicePrivate *priv;
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    priv = NM_DEVICE_GET_PRIVATE(device);
+
+    if (!priv->description)
+        ensure_description(device);
+
+    return priv->description;
+}
+
+static gboolean
+find_duplicates(char **names, gboolean *duplicates, int num_devices)
+{
+    int      i, j;
+    gboolean found_any = FALSE;
+
+    memset(duplicates, 0, num_devices * sizeof(gboolean));
+    for (i = 0; i < num_devices; i++) {
+        if (duplicates[i])
+            continue;
+        for (j = i + 1; j < num_devices; j++) {
+            if (duplicates[j])
+                continue;
+            if (!strcmp(names[i], names[j]))
+                duplicates[i] = duplicates[j] = found_any = TRUE;
+        }
+    }
+
+    return found_any;
+}
+
+/**
+ * nm_device_disambiguate_names:
+ * @devices: (array length=num_devices): an array of #NMDevice
+ * @num_devices: length of @devices
+ *
+ * Generates a list of short-ish unique presentation names for the
+ * devices in @devices.
+ *
+ * Returns: (transfer full) (array zero-terminated=1): the device names
+ */
+char **
+nm_device_disambiguate_names(NMDevice **devices, int num_devices)
+{
+    char **   names;
+    gboolean *duplicates;
+    int       i;
+
+    names      = g_new(char *, num_devices + 1);
+    duplicates = g_new(gboolean, num_devices);
+
+    /* Generic device name */
+    for (i = 0; i < num_devices; i++)
+        names[i] = get_device_generic_type_name_with_iface(devices[i]);
+    if (!find_duplicates(names, duplicates, num_devices))
+        goto done;
+
+    /* Try specific names (eg, "Ethernet" and "InfiniBand" rather
+     * than "Wired")
+     */
+    for (i = 0; i < num_devices; i++) {
+        if (duplicates[i]) {
+            g_free(names[i]);
+            names[i] = get_device_type_name_with_iface(devices[i]);
+        }
+    }
+    if (!find_duplicates(names, duplicates, num_devices))
+        goto done;
+
+    /* Try prefixing bus name (eg, "PCI Ethernet" vs "USB Ethernet") */
+    for (i = 0; i < num_devices; i++) {
+        if (duplicates[i]) {
+            const char *bus = get_bus_name(devices[i]);
+            char *      name;
+
+            if (!bus)
+                continue;
+
+            g_free(names[i]);
+            name = get_device_type_name_with_iface(devices[i]);
+            /* TRANSLATORS: the first %s is a bus name (eg, "USB") or
+             * product name, the second is a device type (eg,
+             * "Ethernet"). You can change this to something like
+             * "%2$s (%1$s)" if there's no grammatical way to combine
+             * the strings otherwise.
+             */
+            names[i] = g_strdup_printf(C_("long device name", "%s %s"), bus, name);
+            g_free(name);
+        }
+    }
+    if (!find_duplicates(names, duplicates, num_devices))
+        goto done;
+
+    /* Try prefixing vendor name */
+    for (i = 0; i < num_devices; i++) {
+        if (duplicates[i]) {
+            const char *vendor = get_short_vendor(devices[i]);
+            char *      name;
+
+            if (!vendor)
+                continue;
+
+            g_free(names[i]);
+            name = get_device_type_name_with_iface(devices[i]);
+            names[i] =
+                g_strdup_printf(C_("long device name", "%s %s"), vendor, get_type_name(devices[i]));
+            g_free(name);
+        }
+    }
+    if (!find_duplicates(names, duplicates, num_devices))
+        goto done;
+
+    /* If dealing with Bluetooth devices, try to distinguish them by
+     * device name.
+     */
+    for (i = 0; i < num_devices; i++) {
+        if (duplicates[i] && NM_IS_DEVICE_BT(devices[i])) {
+            const char *devname = nm_device_bt_get_name(NM_DEVICE_BT(devices[i]));
+            char *      name;
+
+            if (!devname)
+                continue;
+
+            g_free(names[i]);
+            name     = get_device_type_name_with_iface(devices[i]);
+            names[i] = g_strdup_printf("%s (%s)", name, devname);
+            g_free(name);
+        }
+    }
+    if (!find_duplicates(names, duplicates, num_devices))
+        goto done;
+
+    /* We have multiple identical network cards, so we have to differentiate
+     * them by interface name.
+     */
+    for (i = 0; i < num_devices; i++) {
+        if (duplicates[i]) {
+            const char *interface = nm_device_get_iface(devices[i]);
+
+            if (!interface)
+                continue;
+
+            g_free(names[i]);
+            names[i] = g_strdup_printf("%s (%s)", get_type_name(devices[i]), interface);
+        }
+    }
+
+done:
+    g_free(duplicates);
+    names[num_devices] = NULL;
+    return names;
+}
+
+/**
+ * nm_device_get_physical_port_id:
+ * @device: a #NMDevice
+ *
+ * Gets the physical port ID of the #NMDevice. If non-%NULL, this is
+ * an opaque string that can be used to recognize when
+ * seemingly-unrelated #NMDevices are actually just different virtual
+ * ports on a single physical port. (Eg, NPAR / SR-IOV.)
+ *
+ * Returns: the physical port ID of the device, or %NULL if the port
+ *   ID is unknown. This is the internal string used by the device and
+ *   must not be modified.
+ **/
+const char *
+nm_device_get_physical_port_id(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    return _nml_coerce_property_str_not_empty(NM_DEVICE_GET_PRIVATE(device)->physical_port_id);
+}
+
+/**
+ * nm_device_get_mtu:
+ * @device: a #NMDevice
+ *
+ * Gets the  MTU of the #NMDevice.
+ *
+ * Returns: the MTU of the device in bytes.
+ **/
+guint32
+nm_device_get_mtu(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), 0);
+
+    return NM_DEVICE_GET_PRIVATE(device)->mtu;
+}
+
+/**
+ * nm_device_get_metered:
+ * @device: a #NMDevice
+ *
+ * Gets the metered setting of a #NMDevice.
+ *
+ * Returns: the metered setting.
+ *
+ * Since: 1.2
+ **/
+NMMetered
+nm_device_get_metered(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), NM_METERED_UNKNOWN);
+
+    return NM_DEVICE_GET_PRIVATE(device)->metered;
+}
+
+NM_BACKPORT_SYMBOL(libnm_1_0_6, NMMetered, nm_device_get_metered, (NMDevice * device), (device));
+
+/**
+ * nm_device_get_lldp_neighbors:
+ * @device: a #NMDevice
+ *
+ * Gets the list of neighbors discovered through LLDP.
+ *
+ * Returns: (element-type NMLldpNeighbor) (transfer none): the #GPtrArray
+ * containing #NMLldpNeighbor<!-- -->s. This is the internal copy used by the
+ * device and must not be modified. The library never modifies the returned
+ * array and thus it is safe for callers to reference and keep using it.
+ *
+ * Since: 1.2
+ **/
+GPtrArray *
+nm_device_get_lldp_neighbors(NMDevice *device)
+{
+    NMDevicePrivate *priv;
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+
+    priv = NM_DEVICE_GET_PRIVATE(device);
+    if (!priv->lldp_neighbors)
+        priv->lldp_neighbors =
+            g_ptr_array_new_with_free_func((GDestroyNotify) nm_lldp_neighbor_unref);
+    return priv->lldp_neighbors;
+}
+
+/**
+ * nm_device_is_real:
+ * @device: a #NMDevice
+ *
+ * Returns: %TRUE if the device exists, or %FALSE if it is a placeholder device
+ * that could be automatically created by NetworkManager if one of its
+ * #NMDevice:available-connections was activated.
+ *
+ * Since: 1.2
+ **/
+gboolean
+nm_device_is_real(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+
+    return NM_DEVICE_GET_PRIVATE(device)->real;
+}
+
+/**
+ * nm_device_is_software:
+ * @device: a #NMDevice
+ *
+ * Whether the device is a software device.
+ *
+ * Returns: %TRUE if @device is a software device, %FALSE if it is a hardware device.
+ **/
+gboolean
+nm_device_is_software(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+
+    return !!(NM_DEVICE_GET_PRIVATE(device)->capabilities & NM_DEVICE_CAP_IS_SOFTWARE);
+}
+
+/**
+ * nm_device_reapply:
+ * @device: a #NMDevice
+ * @connection: (allow-none): the #NMConnection to replace the applied
+ *   settings with or %NULL to reuse existing
+ * @version_id: zero or the expected version id of the applied connection.
+ *   If specified and the version id mismatches, the call fails without
+ *   modification. This allows to catch concurrent accesses.
+ * @flags: always set this to zero
+ * @cancellable: a #GCancellable, or %NULL
+ * @error: location for a #GError, or %NULL
+ *
+ * Attempts to update device with changes to the currently active connection
+ * made since it was last applied.
+ *
+ * Returns: %TRUE on success, %FALSE on error, in which case @error will be set.
+ *
+ * Since: 1.2
+ *
+ * Deprecated: 1.22: Use nm_device_reapply_async() or GDBusConnection.
+ **/
+gboolean
+nm_device_reapply(NMDevice *    device,
+                  NMConnection *connection,
+                  guint64       version_id,
+                  guint32       flags,
+                  GCancellable *cancellable,
+                  GError **     error)
+{
+    GVariant *arg_connection = NULL;
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+    g_return_val_if_fail(!connection || NM_IS_CONNECTION(connection), FALSE);
+    g_return_val_if_fail(!cancellable || G_IS_CANCELLABLE(cancellable), FALSE);
+    g_return_val_if_fail(!error || !*error, FALSE);
+
+    if (connection)
+        arg_connection = nm_connection_to_dbus(connection, NM_CONNECTION_SERIALIZE_ALL);
+    if (!arg_connection)
+        arg_connection = nm_g_variant_singleton_aLsaLsvII();
+
+    return _nm_client_dbus_call_sync_void(
+        _nm_object_get_client(device),
+        cancellable,
+        _nm_object_get_path(device),
+        NM_DBUS_INTERFACE_DEVICE,
+        "Reapply",
+        g_variant_new("(@a{sa{sv}}tu)", arg_connection, version_id, flags),
+        G_DBUS_CALL_FLAGS_NONE,
+        NM_DBUS_DEFAULT_TIMEOUT_MSEC,
+        TRUE,
+        error);
+}
+
+/**
+ * nm_device_reapply_async:
+ * @device: a #NMDevice
+ * @connection: (allow-none): the #NMConnection to replace the applied
+ *   settings with or %NULL to reuse existing
+ * @version_id: zero or the expected version id of the applied
+ *   connection. If specified and the version id mismatches, the call
+ *   fails without modification. This allows to catch concurrent
+ *   accesses.
+ * @flags: always set this to zero
+ * @cancellable: a #GCancellable, or %NULL
+ * @callback: callback to be called when the reapply operation completes
+ * @user_data: caller-specific data passed to @callback
+ *
+ * Asynchronously begins an attempt to update device with changes to the
+ * currently active connection made since it was last applied.
+ *
+ * Since: 1.2
+ **/
+void
+nm_device_reapply_async(NMDevice *          device,
+                        NMConnection *      connection,
+                        guint64             version_id,
+                        guint32             flags,
+                        GCancellable *      cancellable,
+                        GAsyncReadyCallback callback,
+                        gpointer            user_data)
+{
+    GVariant *arg_connection = NULL;
+
+    g_return_if_fail(NM_IS_DEVICE(device));
+    g_return_if_fail(!connection || NM_IS_CONNECTION(connection));
+    g_return_if_fail(!cancellable || G_IS_CANCELLABLE(cancellable));
+
+    if (connection)
+        arg_connection = nm_connection_to_dbus(connection, NM_CONNECTION_SERIALIZE_ALL);
+    if (!arg_connection)
+        arg_connection = nm_g_variant_singleton_aLsaLsvII();
+
+    _nm_client_dbus_call(_nm_object_get_client(device),
+                         device,
+                         nm_device_reapply_async,
+                         cancellable,
+                         callback,
+                         user_data,
+                         _nm_object_get_path(device),
+                         NM_DBUS_INTERFACE_DEVICE,
+                         "Reapply",
+                         g_variant_new("(@a{sa{sv}}tu)", arg_connection, version_id, flags),
+                         G_VARIANT_TYPE("()"),
+                         G_DBUS_CALL_FLAGS_NONE,
+                         NM_DBUS_DEFAULT_TIMEOUT_MSEC,
+                         nm_dbus_connection_call_finish_void_strip_dbus_error_cb);
+}
+
+/**
+ * nm_device_reapply_finish:
+ * @device: a #NMDevice
+ * @result: the result passed to the #GAsyncReadyCallback
+ * @error: location for a #GError, or %NULL
+ *
+ * Gets the result of a call to nm_device_reapply_async().
+ *
+ * Returns: %TRUE on success, %FALSE on error, in which case @error
+ * will be set.
+ *
+ * Since: 1.2
+ **/
+gboolean
+nm_device_reapply_finish(NMDevice *device, GAsyncResult *result, GError **error)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+    g_return_val_if_fail(nm_g_task_is_valid(result, device, nm_device_reapply_async), FALSE);
+
+    return g_task_propagate_boolean(G_TASK(result), error);
+}
+
+/*****************************************************************************/
+
+/**
+ * nm_device_get_applied_connection:
+ * @device: a #NMDevice
+ * @flags: the flags argument. Currently, this value must always be zero.
+ * @version_id: (out) (allow-none): returns the current version id of
+ *   the applied connection
+ * @cancellable: a #GCancellable, or %NULL
+ * @error: location for a #GError, or %NULL
+ *
+ * Fetch the currently applied connection on the device.
+ *
+ * Returns: (transfer full): a %NMConnection with the currently applied settings
+ *   or %NULL on error.
+ *
+ * The connection is as received from D-Bus and might not validate according
+ * to nm_connection_verify().
+ *
+ * Since: 1.2
+ *
+ * Deprecated: 1.22: Use nm_device_get_applied_connection_async() or GDBusConnection.
+ **/
+NMConnection *
+nm_device_get_applied_connection(NMDevice *    device,
+                                 guint32       flags,
+                                 guint64 *     version_id,
+                                 GCancellable *cancellable,
+                                 GError **     error)
+{
+    gs_unref_variant GVariant *ret          = NULL;
+    gs_unref_variant GVariant *v_connection = NULL;
+    guint64                    v_version_id;
+    NMConnection *             connection;
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+    g_return_val_if_fail(!cancellable || G_IS_CANCELLABLE(cancellable), NULL);
+    g_return_val_if_fail(!error || !*error, NULL);
+
+    ret = _nm_client_dbus_call_sync(_nm_object_get_client(device),
+                                    cancellable,
+                                    _nm_object_get_path(device),
+                                    NM_DBUS_INTERFACE_DEVICE,
+                                    "GetAppliedConnection",
+                                    g_variant_new("(u)", flags),
+                                    G_VARIANT_TYPE("(a{sa{sv}}t)"),
+                                    G_DBUS_CALL_FLAGS_NONE,
+                                    NM_DBUS_DEFAULT_TIMEOUT_MSEC,
+                                    TRUE,
+                                    error);
+    if (!ret)
+        return NULL;
+
+    g_variant_get(ret, "(@a{sa{sv}}t)", &v_connection, &v_version_id);
+
+    connection = _nm_simple_connection_new_from_dbus(v_connection,
+                                                     NM_SETTING_PARSE_FLAGS_BEST_EFFORT,
+                                                     error);
+    if (!connection)
+        return NULL;
+
+    NM_SET_OUT(version_id, v_version_id);
+    return connection;
+}
+
+/**
+ * nm_device_get_applied_connection_async:
+ * @device: a #NMDevice
+ * @flags: the flags argument. Currently, this value must always be zero.
+ * @cancellable: a #GCancellable, or %NULL
+ * @callback: callback to be called when the reapply operation completes
+ * @user_data: caller-specific data passed to @callback
+ *
+ * Asynchronously begins and gets the currently applied connection.
+ *
+ * Since: 1.2
+ **/
+void
+nm_device_get_applied_connection_async(NMDevice *          device,
+                                       guint32             flags,
+                                       GCancellable *      cancellable,
+                                       GAsyncReadyCallback callback,
+                                       gpointer            user_data)
+{
+    g_return_if_fail(NM_IS_DEVICE(device));
+    g_return_if_fail(!cancellable || G_IS_CANCELLABLE(cancellable));
+
+    _nm_client_dbus_call(_nm_object_get_client(device),
+                         device,
+                         nm_device_get_applied_connection_async,
+                         cancellable,
+                         callback,
+                         user_data,
+                         _nm_object_get_path(device),
+                         NM_DBUS_INTERFACE_DEVICE,
+                         "GetAppliedConnection",
+                         g_variant_new("(u)", flags),
+                         G_VARIANT_TYPE("(a{sa{sv}}t)"),
+                         G_DBUS_CALL_FLAGS_NONE,
+                         NM_DBUS_DEFAULT_TIMEOUT_MSEC,
+                         nm_dbus_connection_call_finish_variant_strip_dbus_error_cb);
+}
+
+/**
+ * nm_device_get_applied_connection_finish:
+ * @device: a #NMDevice
+ * @result: the result passed to the #GAsyncReadyCallback
+ * @version_id: (out) (allow-none): the current version id of the applied
+ *   connection.
+ * @error: location for a #GError, or %NULL
+ *
+ * Gets the result of a call to nm_device_get_applied_connection_async().
+ *
+ * Returns: (transfer full): a currently applied %NMConnection or %NULL in case
+ *   of error.
+ *
+ * The connection is as received from D-Bus and might not validate according
+ * to nm_connection_verify().
+ *
+ * Since: 1.2
+ **/
+NMConnection *
+nm_device_get_applied_connection_finish(NMDevice *    device,
+                                        GAsyncResult *result,
+                                        guint64 *     version_id,
+                                        GError **     error)
+{
+    gs_unref_variant GVariant *ret          = NULL;
+    gs_unref_variant GVariant *v_connection = NULL;
+    guint64                    v_version_id;
+    NMConnection *             connection;
+
+    g_return_val_if_fail(NM_IS_DEVICE(device), NULL);
+    g_return_val_if_fail(nm_g_task_is_valid(result, device, nm_device_get_applied_connection_async),
+                         NULL);
+    g_return_val_if_fail(!error || !*error, NULL);
+
+    ret = g_task_propagate_pointer(G_TASK(result), error);
+    if (!ret)
+        return NULL;
+
+    g_variant_get(ret, "(@a{sa{sv}}t)", &v_connection, &v_version_id);
+
+    connection = _nm_simple_connection_new_from_dbus(v_connection,
+                                                     NM_SETTING_PARSE_FLAGS_BEST_EFFORT,
+                                                     error);
+    if (!connection)
+        return NULL;
+
+    NM_SET_OUT(version_id, v_version_id);
+    return connection;
+}
+
+/*****************************************************************************/
+
+/**
+ * nm_device_disconnect:
+ * @device: a #NMDevice
+ * @cancellable: a #GCancellable, or %NULL
+ * @error: location for a #GError, or %NULL
+ *
+ * Disconnects the device if currently connected, and prevents the device from
+ * automatically connecting to networks until the next manual network connection
+ * request.
+ *
+ * Returns: %TRUE on success, %FALSE on error, in which case @error will be set.
+ *
+ * Deprecated: 1.22: Use nm_device_disconnect_async() or GDBusConnection.
+ **/
+gboolean
+nm_device_disconnect(NMDevice *device, GCancellable *cancellable, GError **error)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+    g_return_val_if_fail(!cancellable || G_IS_CANCELLABLE(cancellable), FALSE);
+    g_return_val_if_fail(!error || !*error, FALSE);
+
+    return _nm_client_dbus_call_sync_void(_nm_object_get_client(device),
+                                          cancellable,
+                                          _nm_object_get_path(device),
+                                          NM_DBUS_INTERFACE_DEVICE,
+                                          "Disconnect",
+                                          g_variant_new("()"),
+                                          G_DBUS_CALL_FLAGS_NONE,
+                                          NM_DBUS_DEFAULT_TIMEOUT_MSEC,
+                                          TRUE,
+                                          error);
+}
+
+/**
+ * nm_device_disconnect_async:
+ * @device: a #NMDevice
+ * @cancellable: a #GCancellable, or %NULL
+ * @callback: callback to be called when the disconnect operation completes
+ * @user_data: caller-specific data passed to @callback
+ *
+ * Asynchronously begins disconnecting the device if currently connected, and
+ * prevents the device from automatically connecting to networks until the next
+ * manual network connection request.
+ **/
+void
+nm_device_disconnect_async(NMDevice *          device,
+                           GCancellable *      cancellable,
+                           GAsyncReadyCallback callback,
+                           gpointer            user_data)
+{
+    g_return_if_fail(NM_IS_DEVICE(device));
+    g_return_if_fail(!cancellable || G_IS_CANCELLABLE(cancellable));
+
+    _nm_client_dbus_call(_nm_object_get_client(device),
+                         device,
+                         nm_device_disconnect_async,
+                         cancellable,
+                         callback,
+                         user_data,
+                         _nm_object_get_path(device),
+                         NM_DBUS_INTERFACE_DEVICE,
+                         "Disconnect",
+                         g_variant_new("()"),
+                         G_VARIANT_TYPE("()"),
+                         G_DBUS_CALL_FLAGS_NONE,
+                         NM_DBUS_DEFAULT_TIMEOUT_MSEC,
+                         nm_dbus_connection_call_finish_void_strip_dbus_error_cb);
+}
+
+/**
+ * nm_device_disconnect_finish:
+ * @device: a #NMDevice
+ * @result: the result passed to the #GAsyncReadyCallback
+ * @error: location for a #GError, or %NULL
+ *
+ * Gets the result of a call to nm_device_disconnect_async().
+ *
+ * Returns: %TRUE on success, %FALSE on error, in which case @error
+ * will be set.
+ **/
+gboolean
+nm_device_disconnect_finish(NMDevice *device, GAsyncResult *result, GError **error)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+    g_return_val_if_fail(nm_g_task_is_valid(result, device, nm_device_disconnect_async), FALSE);
+
+    return g_task_propagate_boolean(G_TASK(result), error);
+}
+
+/**
+ * nm_device_delete:
+ * @device: a #NMDevice
+ * @cancellable: a #GCancellable, or %NULL
+ * @error: location for a #GError, or %NULL
+ *
+ * Deletes the software device. Hardware devices can't be deleted.
+ *
+ * Returns: %TRUE on success, %FALSE on error, in which case @error
+ * will be set.
+ *
+ * Deprecated: 1.22: Use nm_device_delete_async() or GDBusConnection.
+ **/
+gboolean
+nm_device_delete(NMDevice *device, GCancellable *cancellable, GError **error)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+    g_return_val_if_fail(!cancellable || G_IS_CANCELLABLE(cancellable), FALSE);
+    g_return_val_if_fail(!error || !*error, FALSE);
+
+    return _nm_client_dbus_call_sync_void(_nm_object_get_client(device),
+                                          cancellable,
+                                          _nm_object_get_path(device),
+                                          NM_DBUS_INTERFACE_DEVICE,
+                                          "Delete",
+                                          g_variant_new("()"),
+                                          G_DBUS_CALL_FLAGS_NONE,
+                                          NM_DBUS_DEFAULT_TIMEOUT_MSEC,
+                                          TRUE,
+                                          error);
+}
+
+/**
+ * nm_device_delete_async:
+ * @device: a #NMDevice
+ * @cancellable: a #GCancellable, or %NULL
+ * @callback: callback to be called when delete operation completes
+ * @user_data: caller-specific data passed to @callback
+ *
+ * Asynchronously begins deleting the software device. Hardware devices can't
+ * be deleted.
+ **/
+void
+nm_device_delete_async(NMDevice *          device,
+                       GCancellable *      cancellable,
+                       GAsyncReadyCallback callback,
+                       gpointer            user_data)
+{
+    g_return_if_fail(NM_IS_DEVICE(device));
+    g_return_if_fail(!cancellable || G_IS_CANCELLABLE(cancellable));
+
+    _nm_client_dbus_call(_nm_object_get_client(device),
+                         device,
+                         nm_device_delete_async,
+                         cancellable,
+                         callback,
+                         user_data,
+                         _nm_object_get_path(device),
+                         NM_DBUS_INTERFACE_DEVICE,
+                         "Delete",
+                         g_variant_new("()"),
+                         G_VARIANT_TYPE("()"),
+                         G_DBUS_CALL_FLAGS_NONE,
+                         NM_DBUS_DEFAULT_TIMEOUT_MSEC,
+                         nm_dbus_connection_call_finish_void_strip_dbus_error_cb);
+}
+
+/**
+ * nm_device_delete_finish:
+ * @device: a #NMDevice
+ * @result: the result passed to the #GAsyncReadyCallback
+ * @error: location for a #GError, or %NULL
+ *
+ * Gets the result of a call to nm_device_delete_async().
+ *
+ * Returns: %TRUE on success, %FALSE on error, in which case @error
+ * will be set.
+ **/
+gboolean
+nm_device_delete_finish(NMDevice *device, GAsyncResult *result, GError **error)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+    g_return_val_if_fail(nm_g_task_is_valid(result, device, nm_device_delete_async), FALSE);
+
+    return g_task_propagate_boolean(G_TASK(result), error);
+}
+
+/**
+ * nm_device_connection_valid:
+ * @device: an #NMDevice to validate @connection against
+ * @connection: an #NMConnection to validate against @device
+ *
+ * Validates a given connection for a given #NMDevice object and returns
+ * whether the connection may be activated with the device. For example if
+ * @device is a Wi-Fi device that supports only WEP encryption, the connection
+ * will only be valid if it is a Wi-Fi connection which describes a WEP or open
+ * network, and will not be valid if it describes a WPA network, or if it is
+ * an Ethernet, Bluetooth, WWAN, etc connection that is incompatible with the
+ * device.
+ *
+ * Returns: %TRUE if the connection may be activated with this device, %FALSE
+ * if is incompatible with the device's capabilities and characteristics.
+ **/
+gboolean
+nm_device_connection_valid(NMDevice *device, NMConnection *connection)
+{
+    return nm_device_connection_compatible(device, connection, NULL);
+}
+
+static gboolean
+connection_compatible(NMDevice *device, NMConnection *connection, GError **error)
+{
+    const char *config_iface, *device_iface;
+    GError *    local = NULL;
+
+    if (!nm_connection_verify(connection, &local)) {
+        g_set_error(error,
+                    NM_DEVICE_ERROR,
+                    NM_DEVICE_ERROR_INVALID_CONNECTION,
+                    _("The connection was not valid: %s"),
+                    local->message);
+        g_error_free(local);
+        return FALSE;
+    }
+
+    config_iface = nm_connection_get_interface_name(connection);
+    device_iface = nm_device_get_iface(device);
+    if (config_iface && g_strcmp0(config_iface, device_iface) != 0) {
+        g_set_error(error,
+                    NM_DEVICE_ERROR,
+                    NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
+                    _("The interface names of the device and the connection didn't match."));
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+/**
+ * nm_device_connection_compatible:
+ * @device: an #NMDevice to validate @connection against
+ * @connection: an #NMConnection to validate against @device
+ * @error: return location for a #GError, or %NULL
+ *
+ * Validates a given connection for a given #NMDevice object and returns
+ * whether the connection may be activated with the device. For example if
+ * @device is a Wi-Fi device that supports only WEP encryption, the connection
+ * will only be valid if it is a Wi-Fi connection which describes a WEP or open
+ * network, and will not be valid if it describes a WPA network, or if it is
+ * an Ethernet, Bluetooth, WWAN, etc connection that is incompatible with the
+ * device.
+ *
+ * This function does the same as nm_device_connection_valid(), i.e. checking
+ * compatibility of the given device and connection. But, in addition, it sets
+ * GError when FALSE is returned.
+ *
+ * Returns: %TRUE if the connection may be activated with this device, %FALSE
+ * if is incompatible with the device's capabilities and characteristics.
+ **/
+gboolean
+nm_device_connection_compatible(NMDevice *device, NMConnection *connection, GError **error)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), FALSE);
+    g_return_val_if_fail(NM_IS_CONNECTION(connection), FALSE);
+    g_return_val_if_fail(error == NULL || *error == NULL, FALSE);
+
+    return NM_DEVICE_GET_CLASS(device)->connection_compatible(device, connection, error);
+}
+
+/**
+ * nm_device_filter_connections:
+ * @device: an #NMDevice to filter connections for
+ * @connections: (element-type NMConnection): an array of #NMConnections to filter
+ *
+ * Filters a given array of connections for a given #NMDevice object and returns
+ * connections which may be activated with the device. For example if @device
+ * is a Wi-Fi device that supports only WEP encryption, the returned array will
+ * contain any Wi-Fi connections in @connections that allow connection to
+ * unencrypted or WEP-enabled SSIDs.  The returned array will not contain
+ * Ethernet, Bluetooth, Wi-Fi WPA connections, or any other connection that is
+ * incompatible with the device. To get the full list of connections see
+ * nm_client_get_connections().
+ *
+ * Returns: (transfer full) (element-type NMConnection): an array of
+ * #NMConnections that could be activated with the given @device.  The array
+ * should be freed with g_ptr_array_unref() when it is no longer required.
+ *
+ * WARNING: the transfer annotation for this function may not work correctly
+ *   with bindings. See https://gitlab.gnome.org/GNOME/gobject-introspection/-/issues/305.
+ *   You can filter the list yourself with nm_device_connection_valid().
+ **/
+GPtrArray *
+nm_device_filter_connections(NMDevice *device, const GPtrArray *connections)
+{
+    GPtrArray *filtered;
+    int        i;
+
+    filtered = g_ptr_array_new_with_free_func(g_object_unref);
+    for (i = 0; i < connections->len; i++) {
+        NMConnection *candidate = connections->pdata[i];
+
+        /* Connection applies to this device */
+        if (nm_device_connection_valid(device, candidate))
+            g_ptr_array_add(filtered, g_object_ref(candidate));
+    }
+
+    return filtered;
+}
+
+/**
+ * nm_device_get_setting_type:
+ * @device: an #NMDevice
+ *
+ * Gets the (primary) #NMSetting subtype associated with connections
+ * that can be used on @device.
+ *
+ * Returns: @device's associated #NMSetting type
+ */
+GType
+nm_device_get_setting_type(NMDevice *device)
+{
+    g_return_val_if_fail(NM_IS_DEVICE(device), G_TYPE_INVALID);
+    g_return_val_if_fail(NM_DEVICE_GET_CLASS(device)->get_setting_type != NULL, G_TYPE_INVALID);
+
+    return NM_DEVICE_GET_CLASS(device)->get_setting_type(device);
+}
+
+/*****************************************************************************/
+
+static gboolean
+NM_IS_LLDP_NEIGHBOR(const NMLldpNeighbor *self)
+{
+    nm_assert(!self || (self->refcount > 0 && self->attrs));
+    return self && self->refcount > 0;
+}
+
+/**
+ * nm_lldp_neighbor_new:
+ *
+ * Creates a new #NMLldpNeighbor object.
+ *
+ * Note that #NMLldpNeighbor has no public API for mutating
+ * an instance. Also, libnm will not internally mutate a
+ * once exposed object. They are guaranteed to be immutable.
+ * Since 1.32, ref-counting is thread-safe.
+ *
+ * This function is not useful, as there is no public API to
+ * actually modify the (empty) instance.
+ *
+ * Returns: (transfer full): the new #NMLldpNeighbor object.
+ *
+ * Since: 1.2
+ **/
+NMLldpNeighbor *
+nm_lldp_neighbor_new(void)
+{
+    NMLldpNeighbor *neigh;
+
+    neigh  = g_slice_new(NMLldpNeighbor);
+    *neigh = (NMLldpNeighbor){
+        .refcount = 1,
+        .attrs    = g_hash_table_new_full(nm_str_hash,
+                                       g_str_equal,
+                                       g_free,
+                                       (GDestroyNotify) g_variant_unref),
+    };
+
+    return neigh;
+}
+
+static NMLldpNeighbor *
+_nm_lldp_neighbor_dup(NMLldpNeighbor *neighbor)
+{
+    /* There is no public API for mutating a NMLldpNeighbor. Nor should
+     * we ever add one, because immutable types (or at least, sealable types)
+     * are great.
+     *
+     * As such, dup is merely taking another ref. */
+    nm_lldp_neighbor_ref(neighbor);
+    return neighbor;
+}
+
+/**
+ * nm_lldp_neighbor_ref:
+ * @neighbor: the #NMLldpNeighbor
+ *
+ * Increases the reference count of the object.
+ *
+ * Since 1.32, ref-counting of #NMLldpNeighbor is thread-safe.
+ *
+ * Since: 1.2
+ **/
+void
+nm_lldp_neighbor_ref(NMLldpNeighbor *neighbor)
+{
+    g_return_if_fail(NM_IS_LLDP_NEIGHBOR(neighbor));
+
+    g_atomic_int_inc(&neighbor->refcount);
+}
+
+/**
+ * nm_lldp_neighbor_unref:
+ * @neighbor: the #NMLldpNeighbor
+ *
+ * Decreases the reference count of the object.  If the reference count
+ * reaches zero, the object will be destroyed.
+ *
+ * Since 1.32, ref-counting of #NMLldpNeighbor is thread-safe.
+ *
+ * Since: 1.2
+ **/
+void
+nm_lldp_neighbor_unref(NMLldpNeighbor *neighbor)
+{
+    g_return_if_fail(NM_IS_LLDP_NEIGHBOR(neighbor));
+
+    if (g_atomic_int_dec_and_test(&neighbor->refcount)) {
+        g_hash_table_unref(neighbor->attrs);
+        nm_g_slice_free(neighbor);
+    }
+}
+
+/**
+ * nm_lldp_neighbor_get_attr_value:
+ * @neighbor: the #NMLldpNeighbor
+ * @name: the attribute name
+ *
+ * Gets the value (as a GVariant) of attribute with name @name on @neighbor
+ *
+ * Returns: (transfer none): the value or %NULL if the attribute with @name was
+ * not found.
+ *
+ * Since: 1.18
+ **/
+GVariant *
+nm_lldp_neighbor_get_attr_value(NMLldpNeighbor *neighbor, const char *name)
+{
+    g_return_val_if_fail(NM_IS_LLDP_NEIGHBOR(neighbor), FALSE);
+    g_return_val_if_fail(name && name[0], FALSE);
+
+    return g_hash_table_lookup(neighbor->attrs, name);
+}
+
+/**
+ * nm_lldp_neighbor_get_attr_names:
+ * @neighbor: the #NMLldpNeighbor
+ *
+ * Gets an array of attribute names available for @neighbor.
+ *
+ * Returns: (transfer full): a %NULL-terminated array of attribute names.
+ *
+ * Since: 1.2
+ **/
+char **
+nm_lldp_neighbor_get_attr_names(NMLldpNeighbor *neighbor)
+{
+    const char **keys;
+
+    g_return_val_if_fail(NM_IS_LLDP_NEIGHBOR(neighbor), NULL);
+
+    keys = nm_utils_strdict_get_keys(neighbor->attrs, TRUE, NULL);
+
+    return nm_utils_strv_make_deep_copied_nonnull(keys);
+}
+
+/**
+ * nm_lldp_neighbor_get_attr_string_value:
+ * @neighbor: the #NMLldpNeighbor
+ * @name: the attribute name
+ * @out_value: (out) (allow-none) (transfer none): on return, the attribute value
+ *
+ * Gets the string value of attribute with name @name on @neighbor
+ *
+ * Returns: %TRUE if a string attribute with name @name was found, %FALSE otherwise
+ *
+ * Since: 1.2
+ **/
+gboolean
+nm_lldp_neighbor_get_attr_string_value(NMLldpNeighbor *neighbor,
+                                       const char *    name,
+                                       const char **   out_value)
+{
+    GVariant *variant;
+
+    variant = nm_lldp_neighbor_get_attr_value(neighbor, name);
+    if (!variant || !g_variant_is_of_type(variant, G_VARIANT_TYPE_STRING))
+        return FALSE;
+
+    NM_SET_OUT(out_value, g_variant_get_string(variant, NULL));
+    return TRUE;
+}
+
+/**
+ * nm_lldp_neighbor_get_attr_uint_value:
+ * @neighbor: the #NMLldpNeighbor
+ * @name: the attribute name
+ * @out_value: (out) (allow-none): on return, the attribute value
+ *
+ * Gets the uint32 value of attribute with name @name on @neighbor
+ *
+ * Returns: %TRUE if a uint32 attribute with name @name was found, %FALSE otherwise
+ *
+ * Since: 1.2
+ **/
+gboolean
+nm_lldp_neighbor_get_attr_uint_value(NMLldpNeighbor *neighbor, const char *name, guint *out_value)
+{
+    GVariant *variant;
+
+    variant = nm_lldp_neighbor_get_attr_value(neighbor, name);
+    if (!variant || !g_variant_is_of_type(variant, G_VARIANT_TYPE_UINT32))
+        return FALSE;
+
+    NM_SET_OUT(out_value, g_variant_get_uint32(variant));
+    return TRUE;
+}
+
+/**
+ * nm_lldp_neighbor_get_attr_type:
+ * @neighbor: the #NMLldpNeighbor
+ * @name: the attribute name
+ *
+ * Get the type of an attribute.
+ *
+ * Returns: the #GVariantType of the attribute with name @name
+ *
+ * Since: 1.2
+ **/
+const GVariantType *
+nm_lldp_neighbor_get_attr_type(NMLldpNeighbor *neighbor, const char *name)
+{
+    GVariant *variant;
+
+    variant = nm_lldp_neighbor_get_attr_value(neighbor, name);
+    if (!variant)
+        return NULL;
+
+    return g_variant_get_type(variant);
+}