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NetworkManager/src/devices/nm-device-vlan.c

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/* -*- 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 "config.h"
#include <sys/socket.h>
#include "nm-default.h"
#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_flags (NM_DEVICE (self), NM_UNMANAGED_PARENT, !nm_device_get_managed (parent), reason);
}
static void
parent_hwaddr_changed (NMDevice *parent,
GParamSpec *pspec,
gpointer user_data)
{
NMDeviceVlan *self = NM_DEVICE_VLAN (user_data);
NMConnection *connection;
NMSettingWired *s_wired;
const char *cloned_mac = NULL, *new_mac;
/* 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)
cloned_mac = nm_setting_wired_get_cloned_mac_address (s_wired);
if (!cloned_mac) {
new_mac = nm_device_get_hw_address (parent);
_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, nm_device_get_hw_address (parent),
"set", LOGD_VLAN);
}
}
}
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_changed), device);
/* Set parent-dependent unmanaged flag */
nm_device_set_unmanaged_flags (device,
NM_UNMANAGED_PARENT,
!nm_device_get_managed (parent),
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 (!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 && plerr != NM_PLATFORM_ERROR_EXISTS) {
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, gboolean remove_resources)
{
NM_DEVICE_CLASS (nm_device_vlan_parent_class)->unrealize_notify (device, remove_resources);
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, *iface = 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;
}
}
/* Ensure the interface name matches. If not specified we assume a match
* since both the parent interface and the VLAN ID matched by the time we
* get here.
*/
iface = nm_connection_get_interface_name (connection);
if (iface) {
if (g_strcmp0 (nm_device_get_ip_iface (device), iface) != 0)
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 (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)
{
NMActRequest *req;
NMConnection *connection;
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;
req = nm_device_get_act_request (dev);
g_return_val_if_fail (req != NULL, NM_ACT_STAGE_RETURN_FAILURE);
connection = nm_act_request_get_applied_connection (req);
g_return_val_if_fail (connection != NULL, NM_ACT_STAGE_RETURN_FAILURE);
s_wired = nm_connection_get_setting_wired (connection);
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);
if (cloned_mac)
nm_device_set_hw_addr (dev, cloned_mac, "set", LOGD_VLAN);
}
s_vlan = nm_connection_get_setting_vlan (connection);
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_virtual_iface_name (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_virtual_iface_name = get_virtual_iface_name;
)
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