1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd.
5 Copyright 2014 Susant Sahani <susant@redhat.com>
9 #include <linux/veth.h>
12 #include "sd-netlink.h"
14 #include "netdev/veth.h"
16 static int netdev_veth_fill_message_create(NetDev
*netdev
, Link
*link
, sd_netlink_message
*m
) {
28 r
= sd_netlink_message_open_container(m
, VETH_INFO_PEER
);
30 return log_netdev_error_errno(netdev
, r
, "Could not append VETH_INFO_PEER attribute: %m");
33 r
= sd_netlink_message_append_string(m
, IFLA_IFNAME
, v
->ifname_peer
);
35 return log_error_errno(r
, "Failed to add netlink interface name: %m");
39 r
= sd_netlink_message_append_ether_addr(m
, IFLA_ADDRESS
, v
->mac_peer
);
41 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_ADDRESS attribute: %m");
44 r
= sd_netlink_message_close_container(m
);
46 return log_netdev_error_errno(netdev
, r
, "Could not append IFLA_INFO_DATA attribute: %m");
51 static int netdev_veth_verify(NetDev
*netdev
, const char *filename
) {
62 if (!v
->ifname_peer
) {
63 log_warning("Veth NetDev without peer name configured in %s. Ignoring",
69 r
= netdev_get_mac(v
->ifname_peer
, &v
->mac_peer
);
71 log_warning("Failed to generate predictable MAC address for %s. Ignoring",
80 static void veth_done(NetDev
*n
) {
93 const NetDevVTable veth_vtable
= {
94 .object_size
= sizeof(Veth
),
95 .sections
= "Match\0NetDev\0Peer\0",
97 .fill_message_create
= netdev_veth_fill_message_create
,
98 .create_type
= NETDEV_CREATE_INDEPENDENT
,
99 .config_verify
= netdev_veth_verify
,