networkd-netdev-vlan.c revision 3be1d7e0c5bf60658d34eb6311d4e77c6803578c
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 Tom Gundersen <teg@jklm.no>
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <net/if.h>
#include "networkd-netdev-vlan.h"
#include "network-internal.h"
#include "list.h"
static int netdev_vlan_fill_message_create(NetDev *netdev, Link *link, sd_rtnl_message *req) {
int r;
assert(netdev);
assert(netdev->ifname);
assert(netdev->kind == NETDEV_KIND_VLAN);
assert(link);
assert(req);
r = sd_rtnl_message_append_u32(req, IFLA_LINK, link->ifindex);
if (r < 0) {
log_error_netdev(netdev,
"Could not append IFLA_LINK attribute: %s",
strerror(-r));
return r;
}
r = sd_rtnl_message_append_string(req, IFLA_IFNAME, netdev->ifname);
if (r < 0) {
log_error_netdev(netdev,
"Could not append IFLA_IFNAME attribute: %s",
strerror(-r));
return r;
}
if (netdev->mtu) {
r = sd_rtnl_message_append_u32(req, IFLA_MTU, netdev->mtu);
if (r < 0) {
log_error_netdev(netdev,
"Could not append IFLA_MTU attribute: %s",
strerror(-r));
return r;
}
}
if (netdev->mac) {
r = sd_rtnl_message_append_ether_addr(req, IFLA_ADDRESS, netdev->mac);
if (r < 0) {
log_error_netdev(netdev,
"Colud not append IFLA_ADDRESS attribute: %s",
strerror(-r));
return r;
}
}
r = sd_rtnl_message_open_container(req, IFLA_LINKINFO);
if (r < 0) {
log_error_netdev(netdev,
"Could not open IFLA_LINKINFO container: %s",
strerror(-r));
return r;
}
r = sd_rtnl_message_open_container_union(req, IFLA_INFO_DATA, "vlan");
if (r < 0) {
log_error_netdev(netdev,
"Could not open IFLA_INFO_DATA container: %s",
strerror(-r));
return r;
}
if (netdev->vlanid <= VLANID_MAX) {
r = sd_rtnl_message_append_u16(req, IFLA_VLAN_ID, netdev->vlanid);
if (r < 0) {
log_error_netdev(netdev,
"Could not append IFLA_VLAN_ID attribute: %s",
strerror(-r));
return r;
}
}
r = sd_rtnl_message_close_container(req);
if (r < 0) {
log_error_netdev(netdev,
"Could not close IFLA_INFO_DATA container %s",
strerror(-r));
return r;
}
r = sd_rtnl_message_close_container(req);
if (r < 0) {
log_error_netdev(netdev,
"Could not close IFLA_LINKINFO container %s",
strerror(-r));
return r;
}
return 0;
}
static int netdev_vlan_verify(NetDev *netdev, const char *filename) {
assert(netdev);
assert(filename);
if (netdev->vlanid > VLANID_MAX) {
log_warning("VLAN without valid Id configured in %s. Ignoring", filename);
return -EINVAL;
}
return 0;
}
const NetDevVTable vlan_vtable = {
.fill_message_create_on_link = netdev_vlan_fill_message_create,
.config_verify = netdev_vlan_verify,
};