// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2011 - 2018 Red Hat, Inc.
*/
#include "nm-default.h"
#include "nm-device-bond.h"
#include <stdlib.h>
#include <net/if.h>
#include "NetworkManagerUtils.h"
#include "nm-device-private.h"
#include "platform/nm-platform.h"
#include "nm-device-factory.h"
#include "nm-core-internal.h"
#include "nm-ip4-config.h"
#include "nm-device-logging.h"
_LOG_DECLARE_SELF(NMDeviceBond);
/*****************************************************************************/
struct _NMDeviceBond {
NMDevice parent;
};
struct _NMDeviceBondClass {
NMDeviceClass parent;
};
G_DEFINE_TYPE (NMDeviceBond, nm_device_bond, NM_TYPE_DEVICE)
/*****************************************************************************/
static NMDeviceCapabilities
get_generic_capabilities (NMDevice *dev)
{
return NM_DEVICE_CAP_CARRIER_DETECT | NM_DEVICE_CAP_IS_SOFTWARE;
}
static gboolean
complete_connection (NMDevice *device,
NMConnection *connection,
const char *specific_object,
NMConnection *const*existing_connections,
GError **error)
{
NMSettingBond *s_bond;
nm_utils_complete_generic (nm_device_get_platform (device),
connection,
NM_SETTING_BOND_SETTING_NAME,
existing_connections,
NULL,
_("Bond connection"),
"bond",
NULL,
TRUE);
s_bond = nm_connection_get_setting_bond (connection);
if (!s_bond) {
s_bond = (NMSettingBond *) nm_setting_bond_new ();
nm_connection_add_setting (connection, NM_SETTING (s_bond));
}
return TRUE;
}
/*****************************************************************************/
static gboolean
_set_bond_attr (NMDevice *device, const char *attr, const char *value)
{
NMDeviceBond *self = NM_DEVICE_BOND (device);
int ifindex = nm_device_get_ifindex (device);
gboolean ret;
ret = nm_platform_sysctl_master_set_option (nm_device_get_platform (device),
ifindex,
attr,
value);
if (!ret)
_LOGW (LOGD_PLATFORM, "failed to set bonding attribute '%s' to '%s'", attr, value);
return ret;
}
#define _set_bond_attr_take(device, attr, value) \
G_STMT_START { \
gs_free char *_tmp = (value); \
\
_set_bond_attr (device, NM_SETTING_BOND_OPTION_ARP_IP_TARGET, _tmp); \
} G_STMT_END
#define _set_bond_attr_printf(device, attr, fmt, ...) \
_set_bond_attr_take ((device), (attr), g_strdup_printf (fmt, __VA_ARGS__))
static gboolean
ignore_option (NMSettingBond *s_bond, const char *option, const char *value)
{
const char *defvalue;
if (nm_streq0 (option, NM_SETTING_BOND_OPTION_MIIMON)) {
/* The default value for miimon, when missing in the setting, is
* 0 if arp_interval is != 0, and 100 otherwise. So, let's ignore
* miimon=0 (which means that miimon is disabled) and accept any
* other value. Adding miimon=100 does not cause any harm.
*/
defvalue = "0";
} else
defvalue = nm_setting_bond_get_option_default (s_bond, option);
return nm_streq0 (value, defvalue);
}
static void
update_connection (NMDevice *device, NMConnection *connection)
{
NMSettingBond *s_bond = nm_connection_get_setting_bond (connection);
int ifindex = nm_device_get_ifindex (device);
NMBondMode mode = NM_BOND_MODE_UNKNOWN;
const char **options;
if (!s_bond) {
s_bond = (NMSettingBond *) nm_setting_bond_new ();
nm_connection_add_setting (connection, (NMSetting *) s_bond);
}
/* Read bond options from sysfs and update the Bond setting to match */
options = nm_setting_bond_get_valid_options (s_bond);
for (; *options; options++) {
char *p;
gs_free char *value = nm_platform_sysctl_master_get_option (nm_device_get_platform (device),
ifindex,
*options);
if ( value
&& _nm_setting_bond_get_option_type (s_bond, *options) == NM_BOND_OPTION_TYPE_BOTH) {
p = strchr (value, ' ');
if (p)
*p = '\0';
}
if (mode == NM_BOND_MODE_UNKNOWN) {
if (value && nm_streq (*options, NM_SETTING_BOND_OPTION_MODE))
mode = _nm_setting_bond_mode_from_string (value);
if (mode == NM_BOND_MODE_UNKNOWN)
continue;
}
if (!_nm_setting_bond_option_supported (*options, mode))
continue;
if ( value
&& value[0]
&& !ignore_option (s_bond, *options, value)) {
/* Replace " " with "," for arp_ip_targets from the kernel */
if (strcmp (*options, NM_SETTING_BOND_OPTION_ARP_IP_TARGET) == 0) {
for (p = value; *p; p++) {
if (*p == ' ')
*p = ',';
}
}
nm_setting_bond_add_option (s_bond, *options, value);
}
}
}
static gboolean
master_update_slave_connection (NMDevice *self,
NMDevice *slave,
NMConnection *connection,
GError **error)
{
g_object_set (nm_connection_get_setting_connection (connection),
NM_SETTING_CONNECTION_MASTER, nm_device_get_iface (self),
NM_SETTING_CONNECTION_SLAVE_TYPE, NM_SETTING_BOND_SETTING_NAME,
NULL);
return TRUE;
}
static void
set_arp_targets (NMDevice *device,
NMBondMode mode,
const char *cur_arp_ip_target,
const char *new_arp_ip_target)
{
gs_unref_ptrarray GPtrArray *free_list = NULL;
gs_free const char **cur_strv = NULL;
gs_free const char **new_strv = NULL;
gsize cur_len;
gsize new_len;
gsize i;
gsize j;
cur_strv = nm_utils_strsplit_set_full (cur_arp_ip_target, NM_ASCII_SPACES, NM_UTILS_STRSPLIT_SET_FLAGS_STRSTRIP);
new_strv = nm_utils_bond_option_arp_ip_targets_split (new_arp_ip_target);
cur_len = NM_PTRARRAY_LEN (cur_strv);
new_len = NM_PTRARRAY_LEN (new_strv);
if (new_len > 0) {
for (j = 0, i = 0; i < new_len; i++) {
const char *s;
in_addr_t a4;
s = new_strv[i];
if (nm_utils_parse_inaddr_bin (AF_INET, s, NULL, &a4)) {
char sbuf[INET_ADDRSTRLEN];
_nm_utils_inet4_ntop (a4, sbuf);
if (!nm_streq (s, sbuf)) {
if (!free_list)
free_list = g_ptr_array_new_with_free_func (g_free);
s = g_strdup (sbuf);
g_ptr_array_add (free_list, (gpointer) s);
}
}
if (nm_utils_strv_find_first ((char **) new_strv, i, s) < 0)
new_strv[j++] = s;
}
new_strv[j] = NULL;
new_len = j;
}
if ( cur_len == 0
&& new_len == 0)
return;
if (_nm_utils_strv_equal ((char **) cur_strv, (char **) new_strv))
return;
for (i = 0; i < cur_len; i++)
_set_bond_attr_printf (device, NM_SETTING_BOND_OPTION_ARP_IP_TARGET, "-%s", cur_strv[i]);
for (i = 0; i < new_len; i++)
_set_bond_attr_printf (device, NM_SETTING_BOND_OPTION_ARP_IP_TARGET, "+%s", new_strv[i]);
}
/*
* Sets bond attribute stored in the option hashtable or
* the default value if no value was set.
*/
static void
set_bond_attr_or_default (NMDevice *device,
NMSettingBond *s_bond,
const char *opt)
{
NMDeviceBond *self = NM_DEVICE_BOND (device);
const char *value;
value = nm_setting_bond_get_option_or_default (s_bond, opt);
if (!value) {
if ( _LOGT_ENABLED (LOGD_BOND)
&& nm_setting_bond_get_option_by_name (s_bond, opt))
_LOGT (LOGD_BOND, "bond option '%s' not set as it conflicts with other options", opt);
return;
}
_set_bond_attr (device, opt, value);
}
static void
set_bond_attr_active_slave (NMDevice *device, NMSettingBond *s_bond)
{
NMDeviceBond *self = NM_DEVICE_BOND (device);
const NMPlatformLink *plink;
const char *value;
const char *error_reason;
int ifindex;
value = nm_setting_bond_get_option_or_default (s_bond, NM_SETTING_BOND_OPTION_ACTIVE_SLAVE);
if (!value)
return;
if (!nm_str_is_empty (value)) {
ifindex = nm_device_get_ifindex (device);
plink = nm_platform_link_get_by_ifname (nm_device_get_platform (device), value);
if (!plink)
error_reason = "does not exist";
else if (plink->master != ifindex)
error_reason = "is not yet enslaved";
else if (!NM_FLAGS_HAS (plink->n_ifi_flags, IFF_UP))
error_reason = "is not up";
else
error_reason = NULL;
if (error_reason) {
_LOGT (LOGD_BOND, "bond option 'active_slave' not set as device \"%s\" %s", value, error_reason);
return;
}
}
_set_bond_attr (device, NM_SETTING_BOND_OPTION_ACTIVE_SLAVE, value);
}
static gboolean
apply_bonding_config (NMDeviceBond *self)
{
NMDevice *device = NM_DEVICE (self);
int ifindex = nm_device_get_ifindex (device);
NMSettingBond *s_bond;
NMBondMode mode;
const char *mode_str;
gs_free char *cur_arp_ip_target = NULL;
s_bond = nm_device_get_applied_setting (device, NM_TYPE_SETTING_BOND);
g_return_val_if_fail (s_bond, FALSE);
mode_str = nm_setting_bond_get_option_or_default (s_bond, NM_SETTING_BOND_OPTION_MODE);
mode = _nm_setting_bond_mode_from_string (mode_str);
g_return_val_if_fail (mode != NM_BOND_MODE_UNKNOWN, FALSE);
/* Set mode first, as some other options (e.g. arp_interval) are valid
* only for certain modes.
*/
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_MODE);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_MIIMON);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_UPDELAY);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_DOWNDELAY);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_ARP_INTERVAL);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_ARP_VALIDATE);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_PRIMARY);
/* ARP targets: clear and initialize the list */
cur_arp_ip_target = nm_platform_sysctl_master_get_option (nm_device_get_platform (device),
ifindex,
NM_SETTING_BOND_OPTION_ARP_IP_TARGET);
set_arp_targets (device,
mode,
cur_arp_ip_target,
nm_setting_bond_get_option_or_default (s_bond, NM_SETTING_BOND_OPTION_ARP_IP_TARGET));
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_AD_ACTOR_SYSTEM);
set_bond_attr_active_slave (device, s_bond);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_AD_ACTOR_SYS_PRIO);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_AD_SELECT);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_AD_USER_PORT_KEY);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_ALL_SLAVES_ACTIVE);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_ARP_ALL_TARGETS);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_FAIL_OVER_MAC);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_LACP_RATE);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_LP_INTERVAL);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_MIN_LINKS);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_PACKETS_PER_SLAVE);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_PRIMARY_RESELECT);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_RESEND_IGMP);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_TLB_DYNAMIC_LB);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_USE_CARRIER);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_XMIT_HASH_POLICY);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_NUM_GRAT_ARP);
return TRUE;
}
static NMActStageReturn
act_stage1_prepare (NMDevice *device, NMDeviceStateReason *out_failure_reason)
{
NMDeviceBond *self = NM_DEVICE_BOND (device);
NMActStageReturn ret = NM_ACT_STAGE_RETURN_SUCCESS;
/* Interface must be down to set bond options */
nm_device_take_down (device, TRUE);
if (!apply_bonding_config (self))
ret = NM_ACT_STAGE_RETURN_FAILURE;
else {
if (!nm_device_hw_addr_set_cloned (device,
nm_device_get_applied_connection (device),
FALSE))
ret = NM_ACT_STAGE_RETURN_FAILURE;
}
nm_device_bring_up (device, TRUE, NULL);
return ret;
}
static gboolean
enslave_slave (NMDevice *device,
NMDevice *slave,
NMConnection *connection,
gboolean configure)
{
NMDeviceBond *self = NM_DEVICE_BOND (device);
gboolean success = TRUE;
const char *slave_iface = nm_device_get_ip_iface (slave);
NMConnection *master_con;
nm_device_master_check_slave_physical_port (device, slave, LOGD_BOND);
if (configure) {
nm_device_take_down (slave, TRUE);
success = nm_platform_link_enslave (nm_device_get_platform (device),
nm_device_get_ip_ifindex (device),
nm_device_get_ip_ifindex (slave));
nm_device_bring_up (slave, TRUE, NULL);
if (!success)
return FALSE;
_LOGI (LOGD_BOND, "enslaved bond slave %s", slave_iface);
/* The active_slave option can be set only after the interface is enslaved */
master_con = nm_device_get_applied_connection (device);
if (master_con) {
NMSettingBond *s_bond = nm_connection_get_setting_bond (master_con);
const char *active;
if (s_bond) {
active = nm_setting_bond_get_option_or_default (s_bond,
NM_SETTING_BOND_OPTION_ACTIVE_SLAVE);
if (nm_streq0 (active, nm_device_get_iface (slave))) {
nm_platform_sysctl_master_set_option (nm_device_get_platform (device),
nm_device_get_ifindex (device),
NM_SETTING_BOND_OPTION_ACTIVE_SLAVE,
active);
_LOGD (LOGD_BOND, "setting slave %s as active one for master %s",
active, nm_device_get_iface (device));
}
}
}
} else
_LOGI (LOGD_BOND, "bond slave %s was enslaved", slave_iface);
return TRUE;
}
static void
release_slave (NMDevice *device,
NMDevice *slave,
gboolean configure)
{
NMDeviceBond *self = NM_DEVICE_BOND (device);
gboolean success;
gs_free char *address = NULL;
int ifindex_slave;
int ifindex;
if (configure) {
ifindex = nm_device_get_ifindex (device);
if ( ifindex <= 0
|| !nm_platform_link_get (nm_device_get_platform (device), ifindex))
configure = FALSE;
}
ifindex_slave = nm_device_get_ip_ifindex (slave);
if (ifindex_slave <= 0)
_LOGD (LOGD_BOND, "bond slave %s is already released", nm_device_get_ip_iface (slave));
if (configure) {
/* When the last slave is released the bond MAC will be set to a random
* value by kernel; remember the current one and restore it afterwards.
*/
address = g_strdup (nm_device_get_hw_address (device));
if (ifindex_slave > 0) {
success = nm_platform_link_release (nm_device_get_platform (device),
nm_device_get_ip_ifindex (device),
ifindex_slave);
if (success) {
_LOGI (LOGD_BOND, "released bond slave %s",
nm_device_get_ip_iface (slave));
} else {
_LOGW (LOGD_BOND, "failed to release bond slave %s",
nm_device_get_ip_iface (slave));
}
}
nm_platform_process_events (nm_device_get_platform (device));
if (nm_device_update_hw_address (device))
nm_device_hw_addr_set (device, address, "restore", FALSE);
/* Kernel bonding code "closes" the slave when releasing it, (which clears
* IFF_UP), so we must bring it back up here to ensure carrier changes and
* other state is noticed by the now-released slave.
*/
if (ifindex_slave > 0) {
if (!nm_device_bring_up (slave, TRUE, NULL))
_LOGW (LOGD_BOND, "released bond slave could not be brought up.");
}
} else {
if (ifindex_slave > 0) {
_LOGI (LOGD_BOND, "bond slave %s was released",
nm_device_get_ip_iface (slave));
}
}
}
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);
int r;
g_assert (iface);
r = nm_platform_link_bond_add (nm_device_get_platform (device), iface, out_plink);
if (r < 0) {
g_set_error (error, NM_DEVICE_ERROR, NM_DEVICE_ERROR_CREATION_FAILED,
"Failed to create bond interface '%s' for '%s': %s",
iface,
nm_connection_get_id (connection),
nm_strerror (r));
return FALSE;
}
return TRUE;
}
static gboolean
check_changed_options (NMSettingBond *s_a, NMSettingBond *s_b, GError **error)
{
guint i, num;
const char *name = NULL, *value_a = NULL, *value_b = NULL;
/* Check that options in @s_a have compatible changes in @s_b */
num = nm_setting_bond_get_num_options (s_a);
for (i = 0; i < num; i++) {
nm_setting_bond_get_option (s_a, i, &name, &value_a);
/* We support changes to these */
if (NM_IN_STRSET (name,
NM_SETTING_BOND_OPTION_ACTIVE_SLAVE,
NM_SETTING_BOND_OPTION_PRIMARY)) {
continue;
}
/* Missing in @s_b, but has a default value in @s_a */
value_b = nm_setting_bond_get_option_by_name (s_b, name);
if ( !value_b
&& nm_streq0 (value_a, nm_setting_bond_get_option_default (s_a, name))) {
continue;
}
/* Reject any other changes */
if (!nm_streq0 (value_a, value_b)) {
g_set_error (error,
NM_DEVICE_ERROR,
NM_DEVICE_ERROR_INCOMPATIBLE_CONNECTION,
"Can't reapply '%s' bond option",
name);
return FALSE;
}
}
return TRUE;
}
static gboolean
can_reapply_change (NMDevice *device,
const char *setting_name,
NMSetting *s_old,
NMSetting *s_new,
GHashTable *diffs,
GError **error)
{
NMDeviceClass *device_class;
NMSettingBond *s_bond_old, *s_bond_new;
/* Only handle bond setting here, delegate other settings to parent class */
if (nm_streq (setting_name, NM_SETTING_BOND_SETTING_NAME)) {
if (!nm_device_hash_check_invalid_keys (diffs,
NM_SETTING_BOND_SETTING_NAME,
error,
NM_SETTING_BOND_OPTIONS))
return FALSE;
s_bond_old = NM_SETTING_BOND (s_old);
s_bond_new = NM_SETTING_BOND (s_new);
if ( !check_changed_options (s_bond_old, s_bond_new, error)
|| !check_changed_options (s_bond_new, s_bond_old, error)) {
return FALSE;
}
return TRUE;
}
device_class = NM_DEVICE_CLASS (nm_device_bond_parent_class);
return device_class->can_reapply_change (device,
setting_name,
s_old,
s_new,
diffs,
error);
}
static void
reapply_connection (NMDevice *device, NMConnection *con_old, NMConnection *con_new)
{
NMDeviceBond *self = NM_DEVICE_BOND (device);
const char *value;
NMSettingBond *s_bond;
NMBondMode mode;
NM_DEVICE_CLASS (nm_device_bond_parent_class)->reapply_connection (device,
con_old,
con_new);
_LOGD (LOGD_BOND, "reapplying bond settings");
s_bond = nm_connection_get_setting_bond (con_new);
g_return_if_fail (s_bond);
value = nm_setting_bond_get_option_or_default (s_bond, NM_SETTING_BOND_OPTION_MODE);
mode = _nm_setting_bond_mode_from_string (value);
g_return_if_fail (mode != NM_BOND_MODE_UNKNOWN);
set_bond_attr_or_default (device, s_bond, NM_SETTING_BOND_OPTION_PRIMARY);
set_bond_attr_active_slave (device, s_bond);
}
/*****************************************************************************/
static void
nm_device_bond_init (NMDeviceBond * self)
{
nm_assert (nm_device_is_master (NM_DEVICE (self)));
}
static const NMDBusInterfaceInfoExtended interface_info_device_bond = {
.parent = NM_DEFINE_GDBUS_INTERFACE_INFO_INIT (
NM_DBUS_INTERFACE_DEVICE_BOND,
.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 ("HwAddress", "s", NM_DEVICE_HW_ADDRESS),
NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Carrier", "b", NM_DEVICE_CARRIER),
NM_DEFINE_DBUS_PROPERTY_INFO_EXTENDED_READABLE_L ("Slaves", "ao", NM_DEVICE_SLAVES),
),
),
.legacy_property_changed = TRUE,
};
static void
nm_device_bond_class_init (NMDeviceBondClass *klass)
{
NMDBusObjectClass *dbus_object_class = NM_DBUS_OBJECT_CLASS (klass);
NMDeviceClass *device_class = NM_DEVICE_CLASS (klass);
dbus_object_class->interface_infos = NM_DBUS_INTERFACE_INFOS (&interface_info_device_bond);
device_class->connection_type_supported = NM_SETTING_BOND_SETTING_NAME;
device_class->connection_type_check_compatible = NM_SETTING_BOND_SETTING_NAME;
device_class->link_types = NM_DEVICE_DEFINE_LINK_TYPES (NM_LINK_TYPE_BOND);
device_class->is_master = TRUE;
device_class->get_generic_capabilities = get_generic_capabilities;
device_class->complete_connection = complete_connection;
device_class->update_connection = update_connection;
device_class->master_update_slave_connection = master_update_slave_connection;
device_class->create_and_realize = create_and_realize;
device_class->act_stage1_prepare = act_stage1_prepare;
device_class->get_configured_mtu = nm_device_get_configured_mtu_for_wired;
device_class->enslave_slave = enslave_slave;
device_class->release_slave = release_slave;
device_class->can_reapply_change = can_reapply_change;
device_class->reapply_connection = reapply_connection;
}
/*****************************************************************************/
#define NM_TYPE_BOND_DEVICE_FACTORY (nm_bond_device_factory_get_type ())
#define NM_BOND_DEVICE_FACTORY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), NM_TYPE_BOND_DEVICE_FACTORY, NMBondDeviceFactory))
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_BOND,
NM_DEVICE_IFACE, iface,
NM_DEVICE_DRIVER, "bonding",
NM_DEVICE_TYPE_DESC, "Bond",
NM_DEVICE_DEVICE_TYPE, NM_DEVICE_TYPE_BOND,
NM_DEVICE_LINK_TYPE, NM_LINK_TYPE_BOND,
NULL);
}
NM_DEVICE_FACTORY_DEFINE_INTERNAL (BOND, Bond, bond,
NM_DEVICE_FACTORY_DECLARE_LINK_TYPES (NM_LINK_TYPE_BOND)
NM_DEVICE_FACTORY_DECLARE_SETTING_TYPES (NM_SETTING_BOND_SETTING_NAME),
factory_class->create_device = create_device;
);