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/*-*- 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.h"
#include "network-internal.h"
#include "list.h"
int netdev_create_vlan(NetDev *netdev, Link *link, sd_rtnl_message_handler_t callback) {
_cleanup_rtnl_message_unref_ sd_rtnl_message *req = NULL;
const char *kind;
int r;
assert(netdev);
assert(netdev->kind == NETDEV_KIND_VLAN);
assert(link);
assert(callback);
assert(netdev->ifname);
assert(netdev->manager);
assert(netdev->manager->rtnl);
r = sd_rtnl_message_new_link(netdev->manager->rtnl, &req, RTM_NEWLINK, 0);
if (r < 0) {
log_error_netdev(netdev,
"Could not allocate RTM_NEWLINK message: %s",
strerror(-r));
return r;
}
if (link) {
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;
}
kind = netdev_kind_to_string(netdev->kind);
if (!kind) {
log_error_netdev(netdev, "Invalid kind");
return -EINVAL;
}
r = sd_rtnl_message_open_container_union(req, IFLA_INFO_DATA, kind);
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;
}
r = sd_rtnl_call_async(netdev->manager->rtnl, req, callback, link, 0, NULL);
if (r < 0) {
log_error_netdev(netdev,
"Could not send rtnetlink message: %s", strerror(-r));
return r;
}
link_ref(link);
log_debug_netdev(netdev, "creating netdev");
netdev->state = NETDEV_STATE_CREATING;
return 0;
}
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