111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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/***
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This file is part of systemd.
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Copyright 2013 Tom Gundersen <teg@jklm.no>
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systemd is free software; you can redistribute it and/or modify it
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <errno.h>
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#include <linux/if_vlan.h>
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#include <net/if.h>
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#include "netdev/vlan.h"
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#include "vlan-util.h"
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static int netdev_vlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *req) {
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struct ifla_vlan_flags flags = {};
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VLan *v;
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int r;
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assert(netdev);
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assert(link);
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assert(req);
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v = VLAN(netdev);
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assert(v);
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r = sd_netlink_message_append_u16(req, IFLA_VLAN_ID, v->id);
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append IFLA_VLAN_ID attribute: %m");
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if (v->gvrp != -1) {
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flags.mask |= VLAN_FLAG_GVRP;
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SET_FLAG(flags.flags, VLAN_FLAG_GVRP, v->gvrp);
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}
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if (v->mvrp != -1) {
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flags.mask |= VLAN_FLAG_MVRP;
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SET_FLAG(flags.flags, VLAN_FLAG_MVRP, v->mvrp);
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}
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if (v->reorder_hdr != -1) {
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flags.mask |= VLAN_FLAG_REORDER_HDR;
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SET_FLAG(flags.flags, VLAN_FLAG_REORDER_HDR, v->reorder_hdr);
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}
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if (v->loose_binding != -1) {
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flags.mask |= VLAN_FLAG_LOOSE_BINDING;
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SET_FLAG(flags.flags, VLAN_FLAG_LOOSE_BINDING, v->loose_binding);
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}
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r = sd_netlink_message_append_data(req, IFLA_VLAN_FLAGS, &flags, sizeof(struct ifla_vlan_flags));
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if (r < 0)
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return log_netdev_error_errno(netdev, r, "Could not append IFLA_VLAN_FLAGS attribute: %m");
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return 0;
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}
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static int netdev_vlan_verify(NetDev *netdev, const char *filename) {
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VLan *v;
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assert(netdev);
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assert(filename);
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v = VLAN(netdev);
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assert(v);
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if (v->id == VLANID_INVALID) {
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log_warning("VLAN without valid Id (%"PRIu16") configured in %s.", v->id, filename);
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return -EINVAL;
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}
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return 0;
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}
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static void vlan_init(NetDev *netdev) {
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VLan *v = VLAN(netdev);
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assert(netdev);
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assert(v);
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v->id = VLANID_INVALID;
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v->gvrp = -1;
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v->mvrp = -1;
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v->loose_binding = -1;
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v->reorder_hdr = -1;
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}
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const NetDevVTable vlan_vtable = {
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.object_size = sizeof(VLan),
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.init = vlan_init,
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.sections = "Match\0NetDev\0VLAN\0",
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.fill_message_create = netdev_vlan_fill_message_create,
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.create_type = NETDEV_CREATE_STACKED,
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.config_verify = netdev_vlan_verify,
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};
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