New upstream version 1.29.90 upstream/1.29.90

1 files changed, 665 insertions, 0 deletions

diff --git a/src/core/devices/nm-device-macvlan.c b/src/core/devices/nm-device-macvlan.c
new file mode 100644
index 00000000..e8b39ed6
--- /dev/null
+++ b/src/core/devices/nm-device-macvlan.c
@@ -0,0 +1,665 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright (C) 2013 - 2015 Red Hat, Inc.
+ */
+
+#include "src/core/nm-default-daemon.h"
+
+#include "nm-device-macvlan.h"
+
+#include <linux/if_link.h>
+
+#include "nm-device-private.h"
+#include "settings/nm-settings.h"
+#include "nm-act-request.h"
+#include "nm-manager.h"
+#include "platform/nm-platform.h"
+#include "nm-device-factory.h"
+#include "nm-setting-macvlan.h"
+#include "nm-setting-wired.h"
+#include "nm-active-connection.h"
+#include "nm-ip4-config.h"
+#include "nm-utils.h"
+
+#define _NMLOG_DEVICE_TYPE NMDeviceMacvlan
+#include "nm-device-logging.h"
+
+/*****************************************************************************/
+
+NM_GOBJECT_PROPERTIES_DEFINE(NMDeviceMacvlan, PROP_MODE, PROP_NO_PROMISC, PROP_TAP, );
+
+typedef struct {
+    gulong               parent_state_id;
+    gulong               parent_mtu_id;
+    NMPlatformLnkMacvlan props;
+} NMDeviceMacvlanPrivate;
+
+struct _NMDeviceMacvlan {
+    NMDevice               parent;
+    NMDeviceMacvlanPrivate _priv;
+};
+
+struct _NMDeviceMacvlanClass {
+    NMDeviceClass parent;
+};
+
+G_DEFINE_TYPE(NMDeviceMacvlan, nm_device_macvlan, NM_TYPE_DEVICE)
+
+#define NM_DEVICE_MACVLAN_GET_PRIVATE(self) \
+    _NM_GET_PRIVATE(self, NMDeviceMacvlan, NM_IS_DEVICE_MACVLAN, NMDevice)
+
+/*****************************************************************************/
+
+static int modes[][2] = {
+    {NM_SETTING_MACVLAN_MODE_VEPA, MACVLAN_MODE_VEPA},
+    {NM_SETTING_MACVLAN_MODE_BRIDGE, MACVLAN_MODE_BRIDGE},
+    {NM_SETTING_MACVLAN_MODE_PRIVATE, MACVLAN_MODE_PRIVATE},
+    {NM_SETTING_MACVLAN_MODE_PASSTHRU, MACVLAN_MODE_PASSTHRU},
+};
+
+static int
+setting_mode_to_platform(int mode)
+{
+    guint i;
+
+    for (i = 0; i < G_N_ELEMENTS(modes); i++) {
+        if (modes[i][0] == mode)
+            return modes[i][1];
+    }
+
+    return 0;
+}
+
+static int
+platform_mode_to_setting(int mode)
+{
+    guint i;
+
+    for (i = 0; i < G_N_ELEMENTS(modes); i++) {
+        if (modes[i][1] == mode)
+            return modes[i][0];
+    }
+
+    return 0;
+}
+
+static const char *
+platform_mode_to_string(guint mode)
+{
+    switch (mode) {
+    case MACVLAN_MODE_PRIVATE:
+        return "private";
+    case MACVLAN_MODE_VEPA:
+        return "vepa";
+    case MACVLAN_MODE_BRIDGE:
+        return "bridge";
+    case MACVLAN_MODE_PASSTHRU:
+        return "passthru";
+    default:
+        return "unknown";
+    }
+}
+
+/*****************************************************************************/
+
+static void
+parent_state_changed(NMDevice *          parent,
+                     NMDeviceState       new_state,
+                     NMDeviceState       old_state,
+                     NMDeviceStateReason reason,
+                     gpointer            user_data)
+{
+    NMDeviceMacvlan *self = NM_DEVICE_MACVLAN(user_data);
+
+    /* We'll react to our own carrier state notifications. Ignore the parent's. */
+    if (nm_device_state_reason_check(reason) == NM_DEVICE_STATE_REASON_CARRIER)
+        return;
+
+    nm_device_set_unmanaged_by_flags(NM_DEVICE(self),
+                                     NM_UNMANAGED_PARENT,
+                                     !nm_device_get_managed(parent, FALSE),
+                                     reason);
+}
+
+static void
+parent_mtu_maybe_changed(NMDevice *parent, GParamSpec *pspec, gpointer user_data)
+{
+    /* the MTU of a macvlan/macvtap device is limited by the parent's MTU.
+     *
+     * When the parent's MTU changes, try to re-set the MTU. */
+    nm_device_commit_mtu(user_data);
+}
+
+static void
+parent_changed_notify(NMDevice *device,
+                      int       old_ifindex,
+                      NMDevice *old_parent,
+                      int       new_ifindex,
+                      NMDevice *new_parent)
+{
+    NMDeviceMacvlan *       self = NM_DEVICE_MACVLAN(device);
+    NMDeviceMacvlanPrivate *priv = NM_DEVICE_MACVLAN_GET_PRIVATE(self);
+
+    NM_DEVICE_CLASS(nm_device_macvlan_parent_class)
+        ->parent_changed_notify(device, old_ifindex, old_parent, new_ifindex, new_parent);
+
+    /*  note that @self doesn't have to clear @parent_state_id on dispose,
+     *  because NMDevice's dispose() will unset the parent, which in turn calls
+     *  parent_changed_notify(). */
+    nm_clear_g_signal_handler(old_parent, &priv->parent_state_id);
+    nm_clear_g_signal_handler(old_parent, &priv->parent_mtu_id);
+
+    if (new_parent) {
+        priv->parent_state_id = g_signal_connect(new_parent,
+                                                 NM_DEVICE_STATE_CHANGED,
+                                                 G_CALLBACK(parent_state_changed),
+                                                 device);
+        priv->parent_mtu_id   = g_signal_connect(new_parent,
+                                               "notify::" NM_DEVICE_MTU,
+                                               G_CALLBACK(parent_mtu_maybe_changed),
+                                               device);
+
+        /* Set parent-dependent unmanaged flag */
+        nm_device_set_unmanaged_by_flags(device,
+                                         NM_UNMANAGED_PARENT,
+                                         !nm_device_get_managed(new_parent, FALSE),
+                                         NM_DEVICE_STATE_REASON_PARENT_MANAGED_CHANGED);
+    }
+
+    if (new_ifindex > 0) {
+        /* Recheck availability now that the parent has changed */
+        nm_device_queue_recheck_available(device,
+                                          NM_DEVICE_STATE_REASON_PARENT_CHANGED,
+                                          NM_DEVICE_STATE_REASON_PARENT_CHANGED);
+    }
+}
+
+static void
+update_properties(NMDevice *device)
+{
+    NMDeviceMacvlan *           self   = NM_DEVICE_MACVLAN(device);
+    NMDeviceMacvlanPrivate *    priv   = NM_DEVICE_MACVLAN_GET_PRIVATE(self);
+    GObject *                   object = G_OBJECT(device);
+    const NMPlatformLnkMacvlan *props;
+    const NMPlatformLink *      plink;
+
+    if (priv->props.tap)
+        props = nm_platform_link_get_lnk_macvtap(nm_device_get_platform(device),
+                                                 nm_device_get_ifindex(device),
+                                                 &plink);
+    else
+        props = nm_platform_link_get_lnk_macvlan(nm_device_get_platform(device),
+                                                 nm_device_get_ifindex(device),
+                                                 &plink);
+
+    if (!props) {
+        _LOGW(LOGD_PLATFORM,
+              "could not get %s properties",
+              priv->props.tap ? "macvtap" : "macvlan");
+        return;
+    }
+
+    g_object_freeze_notify(object);
+
+    nm_device_parent_set_ifindex(device, plink->parent);
+
+#define CHECK_PROPERTY_CHANGED(field, prop)      \
+    G_STMT_START                                 \
+    {                                            \
+        if (priv->props.field != props->field) { \
+            priv->props.field = props->field;    \
+            _notify(self, prop);                 \
+        }                                        \
+    }                                            \
+    G_STMT_END
+
+    CHECK_PROPERTY_CHANGED(mode, PROP_MODE);
+    CHECK_PROPERTY_CHANGED(no_promisc, PROP_NO_PROMISC);
+
+    g_object_thaw_notify(object);
+}
+
+static void
+link_changed(NMDevice *device, const NMPlatformLink *pllink)
+{
+    NM_DEVICE_CLASS(nm_device_macvlan_parent_class)->link_changed(device, pllink);
+    update_properties(device);
+}
+
+static gboolean
+create_and_realize(NMDevice *             device,
+                   NMConnection *         connection,
+                   NMDevice *             parent,
+                   const NMPlatformLink **out_plink,
+                   GError **              error)
+{
+    const char *         iface = nm_device_get_iface(device);
+    NMSettingMacvlan *   s_macvlan;
+    NMPlatformLnkMacvlan lnk = {};
+    int                  parent_ifindex;
+    int                  r;
+
+    s_macvlan = nm_connection_get_setting_macvlan(connection);
+    g_return_val_if_fail(s_macvlan, FALSE);
+
+    parent_ifindex = parent ? nm_device_get_ifindex(parent) : 0;
+
+    if (parent_ifindex <= 0) {
+        g_set_error(error,
+                    NM_DEVICE_ERROR,
+                    NM_DEVICE_ERROR_MISSING_DEPENDENCIES,
+                    "MACVLAN devices can not be created without a parent interface");
+        g_return_val_if_fail(!parent, FALSE);
+        return FALSE;
+    }
+
+    lnk.mode = setting_mode_to_platform(nm_setting_macvlan_get_mode(s_macvlan));
+    if (!lnk.mode) {
+        g_set_error(error,
+                    NM_DEVICE_ERROR,
+                    NM_DEVICE_ERROR_FAILED,
+                    "unsupported MACVLAN mode %u in connection %s",
+                    nm_setting_macvlan_get_mode(s_macvlan),
+                    nm_connection_get_uuid(connection));
+        return FALSE;
+    }
+    lnk.no_promisc = !nm_setting_macvlan_get_promiscuous(s_macvlan);
+    lnk.tap        = nm_setting_macvlan_get_tap(s_macvlan);
+
+    r = nm_platform_link_macvlan_add(nm_device_get_platform(device),
+                                     iface,
+                                     parent_ifindex,
+                                     &lnk,
+                                     out_plink);
+    if (r < 0) {
+        g_set_error(error,
+                    NM_DEVICE_ERROR,
+                    NM_DEVICE_ERROR_CREATION_FAILED,
+                    "Failed to create %s interface '%s' for '%s': %s",
+                    lnk.tap ? "macvtap" : "macvlan",
+                    iface,
+                    nm_connection_get_id(connection),
+                    nm_strerror(r));
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+/*****************************************************************************/
+
+static NMDeviceCapabilities
+get_generic_capabilities(NMDevice *device)
+{
+    /* We assume MACVLAN interfaces always support carrier detect */
+    return NM_DEVICE_CAP_CARRIER_DETECT | NM_DEVICE_CAP_IS_SOFTWARE;
+}
+
+/*****************************************************************************/
+
+static gboolean
+is_available(NMDevice *device, NMDeviceCheckDevAvailableFlags flags)
+{
+    if (!nm_device_parent_get_device(device))
+        return FALSE;
+    return NM_DEVICE_CLASS(nm_device_macvlan_parent_class)->is_available(device, flags);
+}
+
+/*****************************************************************************/
+
+static gboolean
+check_connection_compatible(NMDevice *device, NMConnection *connection, GError **error)
+{
+    NMDeviceMacvlanPrivate *priv = NM_DEVICE_MACVLAN_GET_PRIVATE(device);
+    NMSettingMacvlan *      s_macvlan;
+    const char *            parent = NULL;
+
+    if (!NM_DEVICE_CLASS(nm_device_macvlan_parent_class)
+             ->check_connection_compatible(device, connection, error))
+        return FALSE;
+
+    s_macvlan = nm_connection_get_setting_macvlan(connection);
+
+    if (nm_setting_macvlan_get_tap(s_macvlan) != priv->props.tap) {
+        if (priv->props.tap) {
+            nm_utils_error_set_literal(error,
+                                       NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
+                                       "macvtap device does not match macvlan profile");
+        } else {
+            nm_utils_error_set_literal(error,
+                                       NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
+                                       "macvlan device does not match macvtap profile");
+        }
+        return FALSE;
+    }
+
+    /* Before the device is realized some properties will not be set */
+    if (nm_device_is_real(device)) {
+        if (setting_mode_to_platform(nm_setting_macvlan_get_mode(s_macvlan)) != priv->props.mode) {
+            nm_utils_error_set_literal(error,
+                                       NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
+                                       "macvlan mode setting differs");
+            return FALSE;
+        }
+
+        if (nm_setting_macvlan_get_promiscuous(s_macvlan) == priv->props.no_promisc) {
+            nm_utils_error_set_literal(error,
+                                       NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
+                                       "macvlan promiscuous setting differs");
+            return FALSE;
+        }
+
+        /* Check parent interface; could be an interface name or a UUID */
+        parent = nm_setting_macvlan_get_parent(s_macvlan);
+        if (parent) {
+            if (!nm_device_match_parent(device, parent)) {
+                nm_utils_error_set_literal(error,
+                                           NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
+                                           "macvlan parent setting differs");
+                return FALSE;
+            }
+        } else {
+            /* Parent could be a MAC address in an NMSettingWired */
+            if (!nm_device_match_parent_hwaddr(device, connection, TRUE)) {
+                nm_utils_error_set_literal(error,
+                                           NM_UTILS_ERROR_CONNECTION_AVAILABLE_TEMPORARY,
+                                           "macvlan parent mac setting differs");
+                return FALSE;
+            }
+        }
+    }
+
+    return TRUE;
+}
+
+static gboolean
+complete_connection(NMDevice *           device,
+                    NMConnection *       connection,
+                    const char *         specific_object,
+                    NMConnection *const *existing_connections,
+                    GError **            error)
+{
+    NMSettingMacvlan *s_macvlan;
+
+    nm_utils_complete_generic(nm_device_get_platform(device),
+                              connection,
+                              NM_SETTING_MACVLAN_SETTING_NAME,
+                              existing_connections,
+                              NULL,
+                              _("MACVLAN connection"),
+                              NULL,
+                              NULL,
+                              TRUE);
+
+    s_macvlan = nm_connection_get_setting_macvlan(connection);
+    if (!s_macvlan) {
+        g_set_error_literal(error,
+                            NM_DEVICE_ERROR,
+                            NM_DEVICE_ERROR_INVALID_CONNECTION,
+                            "A 'macvlan' setting is required.");
+        return FALSE;
+    }
+
+    /* If there's no MACVLAN interface, no parent, and no hardware address in the
+     * settings, then there's not enough information to complete the setting.
+     */
+    if (!nm_setting_macvlan_get_parent(s_macvlan)
+        && !nm_device_match_parent_hwaddr(device, connection, TRUE)) {
+        g_set_error_literal(
+            error,
+            NM_DEVICE_ERROR,
+            NM_DEVICE_ERROR_INVALID_CONNECTION,
+            "The 'macvlan' setting had no interface name, parent, or hardware address.");
+        return FALSE;
+    }
+
+    return TRUE;
+}
+
+static void
+update_connection(NMDevice *device, NMConnection *connection)
+{
+    NMDeviceMacvlanPrivate *priv      = NM_DEVICE_MACVLAN_GET_PRIVATE(device);
+    NMSettingMacvlan *      s_macvlan = nm_connection_get_setting_macvlan(connection);
+    int                     new_mode;
+
+    if (!s_macvlan) {
+        s_macvlan = (NMSettingMacvlan *) nm_setting_macvlan_new();
+        nm_connection_add_setting(connection, (NMSetting *) s_macvlan);
+    }
+
+    new_mode = platform_mode_to_setting(priv->props.mode);
+    if (new_mode != nm_setting_macvlan_get_mode(s_macvlan))
+        g_object_set(s_macvlan, NM_SETTING_MACVLAN_MODE, new_mode, NULL);
+
+    if (priv->props.no_promisc == nm_setting_macvlan_get_promiscuous(s_macvlan))
+        g_object_set(s_macvlan, NM_SETTING_MACVLAN_PROMISCUOUS, !priv->props.no_promisc, NULL);
+
+    if (priv->props.tap != nm_setting_macvlan_get_tap(s_macvlan))
+        g_object_set(s_macvlan, NM_SETTING_MACVLAN_TAP, !!priv->props.tap, NULL);
+
+    g_object_set(
+        s_macvlan,
+        NM_SETTING_MACVLAN_PARENT,
+        nm_device_parent_find_for_connection(device, nm_setting_macvlan_get_parent(s_macvlan)),
+        NULL);
+}
+
+/*****************************************************************************/
+
+static void
+get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
+{
+    NMDeviceMacvlanPrivate *priv = NM_DEVICE_MACVLAN_GET_PRIVATE(object);
+
+    switch (prop_id) {
+    case PROP_MODE:
+        g_value_set_string(value, platform_mode_to_string(priv->props.mode));
+        break;
+    case PROP_NO_PROMISC:
+        g_value_set_boolean(value, priv->props.no_promisc);
+        break;
+    case PROP_TAP:
+        g_value_set_boolean(value, priv->props.tap);
+        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)
+{
+    NMDeviceMacvlanPrivate *priv = NM_DEVICE_MACVLAN_GET_PRIVATE(object);
+
+    switch (prop_id) {
+    case PROP_TAP:
+        priv->props.tap = g_value_get_boolean(value);
+        break;
+    default:
+        G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+    }
+}
+
+/*****************************************************************************/
+
+static void
+nm_device_macvlan_init(NMDeviceMacvlan *self)
+{}
+
+#if NM_MORE_ASSERTS
+static void
+dispose(GObject *object)
+{
+    G_OBJECT_CLASS(nm_device_macvlan_parent_class)->dispose(object);
+
+    nm_assert(NM_DEVICE_MACVLAN_GET_PRIVATE(object)->parent_state_id == 0);
+    nm_assert(NM_DEVICE_MACVLAN_GET_PRIVATE(object)->parent_mtu_id == 0);
+}
+#endif
+
+static const NMDBusInterfaceInfoExtended interface_info_device_macvlan = {
+    .parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT(
+        NM_DBUS_INTERFACE_DEVICE_MACVLAN,
+        .signals    = NM_DEFINE_GDBUS_SIGNAL_INFOS(&nm_signal_info_property_changed_legacy, ),
+        .properties = NM_DEFINE_GDBUS_PROPERTY_INFOS(
+            NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L("Parent", "o", NM_DEVICE_PARENT),
+            NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L("Mode", "s", NM_DEVICE_MACVLAN_MODE),
+            NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L("NoPromisc",
+                                                             "b",
+                                                             NM_DEVICE_MACVLAN_NO_PROMISC),
+            NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L("Tab",
+                                                             "b",
+                                                             NM_DEVICE_MACVLAN_TAP), ), ),
+    .legacy_property_changed = TRUE,
+};
+
+static void
+nm_device_macvlan_class_init(NMDeviceMacvlanClass *klass)
+{
+    GObjectClass *     object_class      = G_OBJECT_CLASS(klass);
+    NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS(klass);
+    NMDeviceClass *    device_class      = NM_DEVICE_CLASS(klass);
+
+#if NM_MORE_ASSERTS
+    object_class->dispose = dispose;
+#endif
+    object_class->get_property = get_property;
+    object_class->set_property = set_property;
+
+    dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS(&interface_info_device_macvlan);
+
+    device_class->connection_type_supported        = NM_SETTING_MACVLAN_SETTING_NAME;
+    device_class->connection_type_check_compatible = NM_SETTING_MACVLAN_SETTING_NAME;
+    device_class->link_types =
+        NM_DEVICE_DEFINE_LINK_TYPES(NM_LINK_TYPE_MACVLAN, NM_LINK_TYPE_MACVTAP);
+    device_class->mtu_parent_delta = 0;
+
+    device_class->act_stage1_prepare_set_hwaddr_ethernet = TRUE;
+    device_class->check_connection_compatible            = check_connection_compatible;
+    device_class->complete_connection                    = complete_connection;
+    device_class->create_and_realize                     = create_and_realize;
+    device_class->get_generic_capabilities               = get_generic_capabilities;
+    device_class->get_configured_mtu    = nm_device_get_configured_mtu_wired_parent;
+    device_class->is_available          = is_available;
+    device_class->link_changed          = link_changed;
+    device_class->parent_changed_notify = parent_changed_notify;
+    device_class->update_connection     = update_connection;
+
+    obj_properties[PROP_MODE] = g_param_spec_string(NM_DEVICE_MACVLAN_MODE,
+                                                    "",
+                                                    "",
+                                                    NULL,
+                                                    G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    obj_properties[PROP_NO_PROMISC] =
+        g_param_spec_boolean(NM_DEVICE_MACVLAN_NO_PROMISC,
+                             "",
+                             "",
+                             FALSE,
+                             G_PARAM_READABLE | G_PARAM_STATIC_STRINGS);
+
+    obj_properties[PROP_TAP] =
+        g_param_spec_boolean(NM_DEVICE_MACVLAN_TAP,
+                             "",
+                             "",
+                             FALSE,
+                             G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
+
+    g_object_class_install_properties(object_class, _PROPERTY_ENUMS_LAST, obj_properties);
+}
+
+/*****************************************************************************/
+
+#define NM_TYPE_MACVLAN_DEVICE_FACTORY (nm_macvlan_device_factory_get_type())
+#define NM_MACVLAN_DEVICE_FACTORY(obj) \
+    (G_TYPE_CHECK_INSTANCE_CAST((obj), NM_TYPE_MACVLAN_DEVICE_FACTORY, NMMacvlanDeviceFactory))
+
+static NMDevice *
+create_device(NMDeviceFactory *     factory,
+              const char *          iface,
+              const NMPlatformLink *plink,
+              NMConnection *        connection,
+              gboolean *            out_ignore)
+{
+    NMSettingMacvlan *s_macvlan;
+    NMLinkType        link_type;
+    gboolean          tap;
+
+    if (connection) {
+        s_macvlan = nm_connection_get_setting_macvlan(connection);
+        g_assert(s_macvlan);
+        tap = nm_setting_macvlan_get_tap(s_macvlan);
+    } else {
+        g_assert(plink);
+        tap = plink->type == NM_LINK_TYPE_MACVTAP;
+    }
+
+    link_type = tap ? NM_LINK_TYPE_MACVTAP : NM_LINK_TYPE_MACVLAN;
+
+    return g_object_new(NM_TYPE_DEVICE_MACVLAN,
+                        NM_DEVICE_IFACE,
+                        iface,
+                        NM_DEVICE_TYPE_DESC,
+                        "Macvlan",
+                        NM_DEVICE_DEVICE_TYPE,
+                        NM_DEVICE_TYPE_MACVLAN,
+                        NM_DEVICE_LINK_TYPE,
+                        link_type,
+                        NM_DEVICE_MACVLAN_TAP,
+                        tap,
+                        NULL);
+}
+
+static const char *
+get_connection_parent(NMDeviceFactory *factory, NMConnection *connection)
+{
+    NMSettingMacvlan *s_macvlan;
+    NMSettingWired *  s_wired;
+    const char *      parent = NULL;
+
+    g_return_val_if_fail(nm_connection_is_type(connection, NM_SETTING_MACVLAN_SETTING_NAME), NULL);
+
+    s_macvlan = nm_connection_get_setting_macvlan(connection);
+    g_assert(s_macvlan);
+
+    parent = nm_setting_macvlan_get_parent(s_macvlan);
+    if (parent)
+        return parent;
+
+    /* Try the hardware address from the MACVLAN connection's hardware setting */
+    s_wired = nm_connection_get_setting_wired(connection);
+    if (s_wired)
+        return nm_setting_wired_get_mac_address(s_wired);
+
+    return NULL;
+}
+
+static char *
+get_connection_iface(NMDeviceFactory *factory, NMConnection *connection, const char *parent_iface)
+{
+    NMSettingMacvlan *s_macvlan;
+    const char *      ifname;
+
+    g_return_val_if_fail(nm_connection_is_type(connection, NM_SETTING_MACVLAN_SETTING_NAME), NULL);
+
+    s_macvlan = nm_connection_get_setting_macvlan(connection);
+    g_assert(s_macvlan);
+
+    if (!parent_iface)
+        return NULL;
+
+    ifname = nm_connection_get_interface_name(connection);
+    return g_strdup(ifname);
+}
+
+NM_DEVICE_FACTORY_DEFINE_INTERNAL(
+    MACVLAN,
+    Macvlan,
+    macvlan,
+    NM_DEVICE_FACTORY_DECLARE_LINK_TYPES(NM_LINK_TYPE_MACVLAN, NM_LINK_TYPE_MACVTAP)
+        NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES(NM_SETTING_MACVLAN_SETTING_NAME),
+    factory_class->create_device         = create_device;
+    factory_class->get_connection_parent = get_connection_parent;
+    factory_class->get_connection_iface  = get_connection_iface;);