/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */ /* NetworkManager -- Network link manager * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * * Copyright 2011 - 2012 Red Hat, Inc. */ #include "nm-default.h" #include #include "nm-device-vlan.h" #include "nm-manager.h" #include "nm-utils.h" #include "NetworkManagerUtils.h" #include "nm-device-private.h" #include "nm-enum-types.h" #include "nm-connection-provider.h" #include "nm-activation-request.h" #include "nm-ip4-config.h" #include "nm-platform.h" #include "nm-device-factory.h" #include "nm-manager.h" #include "nm-core-internal.h" #include "nmp-object.h" #include "nmdbus-device-vlan.h" #include "nm-device-logging.h" _LOG_DECLARE_SELF(NMDeviceVlan); G_DEFINE_TYPE (NMDeviceVlan, nm_device_vlan, NM_TYPE_DEVICE) #define NM_DEVICE_VLAN_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), NM_TYPE_DEVICE_VLAN, NMDeviceVlanPrivate)) typedef struct { NMDevice *parent; gulong parent_state_id; gulong parent_hwaddr_id; guint vlan_id; } NMDeviceVlanPrivate; enum { PROP_0, PROP_PARENT, PROP_VLAN_ID, LAST_PROP }; /******************************************************************/ static void parent_state_changed (NMDevice *parent, NMDeviceState new_state, NMDeviceState old_state, NMDeviceStateReason reason, gpointer user_data) { NMDeviceVlan *self = NM_DEVICE_VLAN (user_data); /* We'll react to our own carrier state notifications. Ignore the parent's. */ if (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_hwaddr_maybe_changed (NMDevice *parent, GParamSpec *pspec, gpointer user_data) { NMDeviceVlan *self = NM_DEVICE_VLAN (user_data); NMConnection *connection; NMSettingWired *s_wired; const char *new_mac, *old_mac; NMSettingIPConfig *s_ip6; /* Never touch assumed devices */ if (nm_device_uses_assumed_connection (self)) return; connection = nm_device_get_applied_connection (self); if (!connection) return; /* Update the VLAN MAC only if configuration does not specify one */ s_wired = nm_connection_get_setting_wired (connection); if (s_wired) { if (nm_setting_wired_get_cloned_mac_address (s_wired)) return; } old_mac = nm_device_get_hw_address (self); new_mac = nm_device_get_hw_address (parent); if (nm_streq0 (old_mac, new_mac)) return; _LOGD (LOGD_VLAN, "parent hardware address changed to %s%s%s", NM_PRINT_FMT_QUOTE_STRING (new_mac)); if (new_mac) { nm_device_set_hw_addr (self, new_mac, "set", LOGD_VLAN); /* When changing the hw address the interface is taken down, * removing the IPv6 configuration; reapply it. */ s_ip6 = nm_connection_get_setting_ip6_config (connection); if (s_ip6) nm_device_reactivate_ip6_config (NM_DEVICE (self), s_ip6, s_ip6); } } static void nm_device_vlan_set_parent (NMDeviceVlan *self, NMDevice *parent) { NMDeviceVlanPrivate *priv = NM_DEVICE_VLAN_GET_PRIVATE (self); NMDevice *device = NM_DEVICE (self); if (parent == priv->parent) return; nm_clear_g_signal_handler (priv->parent, &priv->parent_state_id); nm_clear_g_signal_handler (priv->parent, &priv->parent_hwaddr_id); g_clear_object (&priv->parent); if (parent) { priv->parent = g_object_ref (parent); priv->parent_state_id = g_signal_connect (priv->parent, NM_DEVICE_STATE_CHANGED, G_CALLBACK (parent_state_changed), device); priv->parent_hwaddr_id = g_signal_connect (priv->parent, "notify::" NM_DEVICE_HW_ADDRESS, G_CALLBACK (parent_hwaddr_maybe_changed), device); parent_hwaddr_maybe_changed (parent, NULL, self); /* Set parent-dependent unmanaged flag */ nm_device_set_unmanaged_by_flags (device, NM_UNMANAGED_PARENT, !nm_device_get_managed (parent, FALSE), NM_DEVICE_STATE_REASON_PARENT_MANAGED_CHANGED); } /* Recheck availability now that the parent has changed */ nm_device_queue_recheck_available (self, NM_DEVICE_STATE_REASON_PARENT_CHANGED, NM_DEVICE_STATE_REASON_PARENT_CHANGED); g_object_notify (G_OBJECT (device), NM_DEVICE_VLAN_PARENT); } static void update_properties (NMDevice *device) { NMDeviceVlanPrivate *priv; const NMPlatformLink *plink = NULL; const NMPlatformLnkVlan *plnk = NULL; NMDevice *parent = NULL; int ifindex; guint vlan_id; g_return_if_fail (NM_IS_DEVICE_VLAN (device)); priv = NM_DEVICE_VLAN_GET_PRIVATE (device); ifindex = nm_device_get_ifindex (device); if (ifindex > 0) plnk = nm_platform_link_get_lnk_vlan (NM_PLATFORM_GET, ifindex, &plink); if ( plnk && plink->parent && plink->parent != NM_PLATFORM_LINK_OTHER_NETNS) parent = nm_manager_get_device_by_ifindex (nm_manager_get (), plink->parent); g_object_freeze_notify ((GObject *) device); nm_device_vlan_set_parent ((NMDeviceVlan *) device, parent); vlan_id = plnk ? plnk->id : 0; if (vlan_id != priv->vlan_id) { priv->vlan_id = vlan_id; g_object_notify ((GObject *) device, NM_DEVICE_VLAN_ID); } g_object_thaw_notify ((GObject *) device); } static void realize_start_notify (NMDevice *device, const NMPlatformLink *plink) { NM_DEVICE_CLASS (nm_device_vlan_parent_class)->realize_start_notify (device, plink); update_properties (device); } static gboolean create_and_realize (NMDevice *device, NMConnection *connection, NMDevice *parent, const NMPlatformLink **out_plink, GError **error) { NMDeviceVlanPrivate *priv = NM_DEVICE_VLAN_GET_PRIVATE (device); const char *iface = nm_device_get_iface (device); NMSettingVlan *s_vlan; int parent_ifindex; guint vlan_id; NMPlatformError plerr; s_vlan = nm_connection_get_setting_vlan (connection); g_assert (s_vlan); if (!parent) { g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_FAILED, "VLAN devices can not be created without a parent interface"); return FALSE; } if (!nm_device_supports_vlans (parent)) { g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_FAILED, "no support for VLANs on interface %s of type %s", nm_device_get_iface (parent), nm_device_get_type_desc (parent)); return FALSE; } parent_ifindex = nm_device_get_ifindex (parent); g_warn_if_fail (parent_ifindex > 0); vlan_id = nm_setting_vlan_get_id (s_vlan); plerr = nm_platform_link_vlan_add (NM_PLATFORM_GET, iface, parent_ifindex, vlan_id, nm_setting_vlan_get_flags (s_vlan), out_plink); if (plerr != NM_PLATFORM_ERROR_SUCCESS) { g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_CREATION_FAILED, "Failed to create VLAN interface '%s' for '%s': %s", iface, nm_connection_get_id (connection), nm_platform_error_to_string (plerr)); return FALSE; } g_warn_if_fail (priv->parent == NULL); nm_device_vlan_set_parent (NM_DEVICE_VLAN (device), parent); if (vlan_id != priv->vlan_id) { priv->vlan_id = vlan_id; g_object_notify ((GObject *) device, NM_DEVICE_VLAN_ID); } return TRUE; } static void unrealize_notify (NMDevice *device) { NM_DEVICE_CLASS (nm_device_vlan_parent_class)->unrealize_notify (device); NM_DEVICE_VLAN_GET_PRIVATE (device)->vlan_id = 0; g_object_notify (G_OBJECT (device), NM_DEVICE_VLAN_ID); nm_device_vlan_set_parent (NM_DEVICE_VLAN (device), NULL); } /******************************************************************/ static NMDeviceCapabilities get_generic_capabilities (NMDevice *dev) { /* We assume VLAN interfaces always support carrier detect */ return NM_DEVICE_CAP_CARRIER_DETECT | NM_DEVICE_CAP_IS_SOFTWARE; } static gboolean bring_up (NMDevice *dev, gboolean *no_firmware) { gboolean success = FALSE; guint i = 20; while (i-- > 0 && !success) { success = NM_DEVICE_CLASS (nm_device_vlan_parent_class)->bring_up (dev, no_firmware); g_usleep (50); } return success; } /******************************************************************/ static gboolean is_available (NMDevice *device, NMDeviceCheckDevAvailableFlags flags) { if (!NM_DEVICE_VLAN_GET_PRIVATE (device)->parent) return FALSE; return NM_DEVICE_CLASS (nm_device_vlan_parent_class)->is_available (device, flags); } static void notify_new_device_added (NMDevice *device, NMDevice *new_device) { NMDeviceVlan *self = NM_DEVICE_VLAN (device); NMDeviceVlanPrivate *priv = NM_DEVICE_VLAN_GET_PRIVATE (self); const NMPlatformLink *plink; const NMPlatformLnkVlan *plnk; if (priv->parent) return; if (!nm_device_is_real (device)) return; plnk = nm_platform_link_get_lnk_vlan (NM_PLATFORM_GET, nm_device_get_ifindex (device), &plink); if (!plnk) return; if ( plink->parent <= 0 || nm_device_get_ifindex (new_device) != plink->parent) return; nm_device_vlan_set_parent (self, new_device); } /******************************************************************/ static gboolean match_parent (NMDeviceVlan *self, const char *parent) { NMDeviceVlanPrivate *priv = NM_DEVICE_VLAN_GET_PRIVATE (self); g_return_val_if_fail (parent != NULL, FALSE); if (!priv->parent) return FALSE; if (nm_utils_is_uuid (parent)) { NMActRequest *parent_req; NMConnection *parent_connection; /* If the parent is a UUID, the connection matches if our parent * device has that connection activated. */ parent_req = nm_device_get_act_request (priv->parent); if (!parent_req) return FALSE; parent_connection = nm_active_connection_get_applied_connection (NM_ACTIVE_CONNECTION (parent_req)); if (!parent_connection) return FALSE; if (g_strcmp0 (parent, nm_connection_get_uuid (parent_connection)) != 0) return FALSE; } else { /* interface name */ if (g_strcmp0 (parent, nm_device_get_ip_iface (priv->parent)) != 0) return FALSE; } return TRUE; } static gboolean match_hwaddr (NMDevice *device, NMConnection *connection, gboolean fail_if_no_hwaddr) { NMSettingWired *s_wired; const char *setting_mac; const char *device_mac; s_wired = nm_connection_get_setting_wired (connection); if (!s_wired) return !fail_if_no_hwaddr; setting_mac = nm_setting_wired_get_mac_address (s_wired); if (!setting_mac) return !fail_if_no_hwaddr; device_mac = nm_device_get_hw_address (device); return nm_utils_hwaddr_matches (setting_mac, -1, device_mac, -1); } static gboolean check_connection_compatible (NMDevice *device, NMConnection *connection) { NMDeviceVlanPrivate *priv = NM_DEVICE_VLAN_GET_PRIVATE (device); NMSettingVlan *s_vlan; const char *parent = NULL; if (!NM_DEVICE_CLASS (nm_device_vlan_parent_class)->check_connection_compatible (device, connection)) return FALSE; s_vlan = nm_connection_get_setting_vlan (connection); if (!s_vlan) return FALSE; /* Before the device is realized some properties will not be set */ if (nm_device_is_real (device)) { if (nm_setting_vlan_get_id (s_vlan) != priv->vlan_id) return FALSE; /* Check parent interface; could be an interface name or a UUID */ parent = nm_setting_vlan_get_parent (s_vlan); if (parent) { if (!match_parent (NM_DEVICE_VLAN (device), parent)) return FALSE; } else { /* Parent could be a MAC address in an NMSettingWired */ if (!match_hwaddr (device, connection, TRUE)) return FALSE; } } return TRUE; } static gboolean check_connection_available (NMDevice *device, NMConnection *connection, NMDeviceCheckConAvailableFlags flags, const char *specific_object) { if (!nm_device_is_real (device)) return TRUE; return NM_DEVICE_CLASS (nm_device_vlan_parent_class)->check_connection_available (device, connection, flags, specific_object); } static gboolean complete_connection (NMDevice *device, NMConnection *connection, const char *specific_object, const GSList *existing_connections, GError **error) { NMSettingVlan *s_vlan; nm_utils_complete_generic (NM_PLATFORM_GET, connection, NM_SETTING_VLAN_SETTING_NAME, existing_connections, NULL, _("VLAN connection"), NULL, TRUE); s_vlan = nm_connection_get_setting_vlan (connection); if (!s_vlan) { g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INVALID_CONNECTION, "A 'vlan' setting is required."); return FALSE; } /* If there's no VLAN interface, no parent, and no hardware address in the * settings, then there's not enough information to complete the setting. */ if ( !nm_setting_vlan_get_parent (s_vlan) && !match_hwaddr (device, connection, TRUE)) { g_set_error_literal (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_INVALID_CONNECTION, "The 'vlan' setting had no interface name, parent, or hardware address."); return FALSE; } return TRUE; } static void update_connection (NMDevice *device, NMConnection *connection) { NMDeviceVlanPrivate *priv = NM_DEVICE_VLAN_GET_PRIVATE (device); NMSettingVlan *s_vlan = nm_connection_get_setting_vlan (connection); int ifindex = nm_device_get_ifindex (device); const char *setting_parent, *new_parent; const NMPlatformLink *plink; const NMPObject *polnk; guint vlan_id; guint vlan_flags; if (!s_vlan) { s_vlan = (NMSettingVlan *) nm_setting_vlan_new (); nm_connection_add_setting (connection, (NMSetting *) s_vlan); } polnk = nm_platform_link_get_lnk (NM_PLATFORM_GET, ifindex, NM_LINK_TYPE_VLAN, &plink); if (polnk) vlan_id = polnk->lnk_vlan.id; else vlan_id = priv->vlan_id; if (vlan_id != nm_setting_vlan_get_id (s_vlan)) g_object_set (s_vlan, NM_SETTING_VLAN_ID, vlan_id, NULL); /* Update parent in the connection; default to parent's interface name */ if ( priv->parent && polnk && plink->parent > 0 && nm_device_get_ifindex (priv->parent) == plink->parent) { new_parent = nm_device_get_iface (priv->parent); setting_parent = nm_setting_vlan_get_parent (s_vlan); if (setting_parent && nm_utils_is_uuid (setting_parent)) { NMConnection *parent_connection; /* Don't change a parent specified by UUID if it's still valid */ parent_connection = nm_connection_provider_get_connection_by_uuid (nm_connection_provider_get (), setting_parent); if (parent_connection && nm_device_check_connection_compatible (priv->parent, parent_connection)) new_parent = NULL; } if (new_parent) g_object_set (s_vlan, NM_SETTING_VLAN_PARENT, new_parent, NULL); } else g_object_set (s_vlan, NM_SETTING_VLAN_PARENT, NULL, NULL); if (polnk) vlan_flags = polnk->lnk_vlan.flags; else vlan_flags = NM_VLAN_FLAG_REORDER_HEADERS; if (vlan_flags != nm_setting_vlan_get_flags (s_vlan)) g_object_set (s_vlan, NM_SETTING_VLAN_FLAGS, (NMVlanFlags) vlan_flags, NULL); if (polnk) { _nm_setting_vlan_set_priorities (s_vlan, NM_VLAN_INGRESS_MAP, polnk->_lnk_vlan.ingress_qos_map, polnk->_lnk_vlan.n_ingress_qos_map); _nm_setting_vlan_set_priorities (s_vlan, NM_VLAN_EGRESS_MAP, polnk->_lnk_vlan.egress_qos_map, polnk->_lnk_vlan.n_egress_qos_map); } else { _nm_setting_vlan_set_priorities (s_vlan, NM_VLAN_INGRESS_MAP, NULL, 0); _nm_setting_vlan_set_priorities (s_vlan, NM_VLAN_EGRESS_MAP, NULL, 0); } } static NMActStageReturn act_stage1_prepare (NMDevice *dev, NMDeviceStateReason *reason) { NMDeviceVlanPrivate *priv = NM_DEVICE_VLAN_GET_PRIVATE (dev); NMSettingVlan *s_vlan; NMSettingWired *s_wired; const char *cloned_mac; NMActStageReturn ret; g_return_val_if_fail (reason != NULL, NM_ACT_STAGE_RETURN_FAILURE); ret = NM_DEVICE_CLASS (nm_device_vlan_parent_class)->act_stage1_prepare (dev, reason); if (ret != NM_ACT_STAGE_RETURN_SUCCESS) return ret; s_wired = (NMSettingWired *) nm_device_get_applied_setting (dev, NM_TYPE_SETTING_WIRED); if (s_wired) { /* Set device MAC address if the connection wants to change it */ cloned_mac = nm_setting_wired_get_cloned_mac_address (s_wired); nm_device_set_hw_addr (dev, cloned_mac, "set", LOGD_VLAN); } /* Change MAC address to parent's one if needed */ if (priv->parent) parent_hwaddr_maybe_changed (priv->parent, NULL, dev); s_vlan = (NMSettingVlan *) nm_device_get_applied_setting (dev, NM_TYPE_SETTING_VLAN); if (s_vlan) { gs_free NMVlanQosMapping *ingress_map = NULL; gs_free NMVlanQosMapping *egress_map = NULL; guint n_ingress_map = 0, n_egress_map = 0; _nm_setting_vlan_get_priorities (s_vlan, NM_VLAN_INGRESS_MAP, &ingress_map, &n_ingress_map); _nm_setting_vlan_get_priorities (s_vlan, NM_VLAN_EGRESS_MAP, &egress_map, &n_egress_map); nm_platform_link_vlan_change (NM_PLATFORM_GET, nm_device_get_ifindex (dev), NM_VLAN_FLAGS_ALL, nm_setting_vlan_get_flags (s_vlan), TRUE, ingress_map, n_ingress_map, TRUE, egress_map, n_egress_map); } return ret; } static void ip4_config_pre_commit (NMDevice *device, NMIP4Config *config) { NMConnection *connection; NMSettingWired *s_wired; guint32 mtu; connection = nm_device_get_applied_connection (device); g_assert (connection); s_wired = nm_connection_get_setting_wired (connection); if (s_wired) { mtu = nm_setting_wired_get_mtu (s_wired); if (mtu) nm_ip4_config_set_mtu (config, mtu, NM_IP_CONFIG_SOURCE_USER); } } static void deactivate (NMDevice *device) { /* Reset MAC address back to initial address */ if (nm_device_get_initial_hw_address (device)) nm_device_set_hw_addr (device, nm_device_get_initial_hw_address (device), "reset", LOGD_VLAN); } /******************************************************************/ static void nm_device_vlan_init (NMDeviceVlan * self) { } static void get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec) { NMDeviceVlanPrivate *priv = NM_DEVICE_VLAN_GET_PRIVATE (object); switch (prop_id) { case PROP_PARENT: nm_utils_g_value_set_object_path (value, priv->parent); break; case PROP_VLAN_ID: g_value_set_uint (value, priv->vlan_id); 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) { G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); } static void dispose (GObject *object) { nm_device_vlan_set_parent (NM_DEVICE_VLAN (object), NULL); G_OBJECT_CLASS (nm_device_vlan_parent_class)->dispose (object); } static void nm_device_vlan_class_init (NMDeviceVlanClass *klass) { GObjectClass *object_class = G_OBJECT_CLASS (klass); NMDeviceClass *parent_class = NM_DEVICE_CLASS (klass); NM_DEVICE_CLASS_DECLARE_TYPES (klass, NM_SETTING_VLAN_SETTING_NAME, NM_LINK_TYPE_VLAN) g_type_class_add_private (object_class, sizeof (NMDeviceVlanPrivate)); /* virtual methods */ object_class->get_property = get_property; object_class->set_property = set_property; object_class->dispose = dispose; parent_class->create_and_realize = create_and_realize; parent_class->realize_start_notify = realize_start_notify; parent_class->unrealize_notify = unrealize_notify; parent_class->get_generic_capabilities = get_generic_capabilities; parent_class->bring_up = bring_up; parent_class->act_stage1_prepare = act_stage1_prepare; parent_class->ip4_config_pre_commit = ip4_config_pre_commit; parent_class->deactivate = deactivate; parent_class->is_available = is_available; parent_class->notify_new_device_added = notify_new_device_added; parent_class->check_connection_compatible = check_connection_compatible; parent_class->check_connection_available = check_connection_available; parent_class->complete_connection = complete_connection; parent_class->update_connection = update_connection; /* properties */ g_object_class_install_property (object_class, PROP_PARENT, g_param_spec_string (NM_DEVICE_VLAN_PARENT, "", "", NULL, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); g_object_class_install_property (object_class, PROP_VLAN_ID, g_param_spec_uint (NM_DEVICE_VLAN_ID, "", "", 0, 4095, 0, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS)); nm_exported_object_class_add_interface (NM_EXPORTED_OBJECT_CLASS (klass), NMDBUS_TYPE_DEVICE_VLAN_SKELETON, NULL); } /*************************************************************/ #define NM_TYPE_VLAN_FACTORY (nm_vlan_factory_get_type ()) #define NM_VLAN_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_VLAN_FACTORY, NMVlanFactory)) static NMDevice * create_device (NMDeviceFactory *factory, const char *iface, const NMPlatformLink *plink, NMConnection *connection, gboolean *out_ignore) { return (NMDevice *) g_object_new (NM_TYPE_DEVICE_VLAN, NM_DEVICE_IFACE, iface, NM_DEVICE_DRIVER, "8021q", NM_DEVICE_TYPE_DESC, "VLAN", NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_VLAN, NM_DEVICE_LINK_TYPE, NM_LINK_TYPE_VLAN, NULL); } static const char * get_connection_parent (NMDeviceFactory *factory, NMConnection *connection) { NMSettingVlan *s_vlan; NMSettingWired *s_wired; const char *parent = NULL; g_return_val_if_fail (nm_connection_is_type (connection, NM_SETTING_VLAN_SETTING_NAME), NULL); s_vlan = nm_connection_get_setting_vlan (connection); g_assert (s_vlan); parent = nm_setting_vlan_get_parent (s_vlan); if (parent) return parent; /* Try the hardware address from the VLAN 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) { const char *ifname; NMSettingVlan *s_vlan; g_return_val_if_fail (nm_connection_is_type (connection, NM_SETTING_VLAN_SETTING_NAME), NULL); s_vlan = nm_connection_get_setting_vlan (connection); g_assert (s_vlan); if (!parent_iface) return NULL; ifname = nm_connection_get_interface_name (connection); if (ifname) return g_strdup (ifname); /* If the connection doesn't specify the interface name for the VLAN * device, we create one for it using the VLAN ID and the parent * interface's name. */ return nm_utils_new_vlan_name (parent_iface, nm_setting_vlan_get_id (s_vlan)); } NM_DEVICE_FACTORY_DEFINE_INTERNAL (VLAN, Vlan, vlan, NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_VLAN) NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES (NM_SETTING_VLAN_SETTING_NAME), factory_iface->create_device = create_device; factory_iface->get_connection_parent = get_connection_parent; factory_iface->get_connection_iface = get_connection_iface; )