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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
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 <errno.h>
#include <linux/if_vlan.h>
#include <net/if.h>
#include "netdev/vlan.h"
#include "vlan-util.h"
static int netdev_vlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *req) {
struct ifla_vlan_flags flags = {};
VLan *v;
int r;
assert(netdev);
assert(link);
assert(req);
v = VLAN(netdev);
assert(v);
r = sd_netlink_message_append_u16(req, IFLA_VLAN_ID, v->id);
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not append IFLA_VLAN_ID attribute: %m");
if (v->gvrp != -1) {
flags.mask |= VLAN_FLAG_GVRP;
SET_FLAG(flags.flags, VLAN_FLAG_GVRP, v->gvrp);
}
if (v->mvrp != -1) {
flags.mask |= VLAN_FLAG_MVRP;
SET_FLAG(flags.flags, VLAN_FLAG_MVRP, v->mvrp);
}
if (v->reorder_hdr != -1) {
flags.mask |= VLAN_FLAG_REORDER_HDR;
SET_FLAG(flags.flags, VLAN_FLAG_REORDER_HDR, v->reorder_hdr);
}
if (v->loose_binding != -1) {
flags.mask |= VLAN_FLAG_LOOSE_BINDING;
SET_FLAG(flags.flags, VLAN_FLAG_LOOSE_BINDING, v->loose_binding);
}
r = sd_netlink_message_append_data(req, IFLA_VLAN_FLAGS, &flags, sizeof(struct ifla_vlan_flags));
if (r < 0)
return log_netdev_error_errno(netdev, r, "Could not append IFLA_VLAN_FLAGS attribute: %m");
return 0;
}
static int netdev_vlan_verify(NetDev *netdev, const char *filename) {
VLan *v;
assert(netdev);
assert(filename);
v = VLAN(netdev);
assert(v);
if (v->id == VLANID_INVALID) {
log_warning("VLAN without valid Id (%"PRIu16") configured in %s.", v->id, filename);
return -EINVAL;
}
return 0;
}
static void vlan_init(NetDev *netdev) {
VLan *v = VLAN(netdev);
assert(netdev);
assert(v);
v->id = VLANID_INVALID;
v->gvrp = -1;
v->mvrp = -1;
v->loose_binding = -1;
v->reorder_hdr = -1;
}
const NetDevVTable vlan_vtable = {
.object_size = sizeof(VLan),
.init = vlan_init,
.sections = "Match\0NetDev\0VLAN\0",
.fill_message_create = netdev_vlan_fill_message_create,
.create_type = NETDEV_CREATE_STACKED,
.config_verify = netdev_vlan_verify,
};
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