src/network/networkd-netdev-vlan.c

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2013 Tom Gundersen <teg@jklm.no>
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #include <net/if.h>
  21
  22 #include "networkd-netdev-vlan.h"
  23 #include "vlan-util.h"
  24
  25 static int netdev_vlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *req) {
  26         VLan *v;
  27         int r;
  28
  29         assert(netdev);
  30         assert(link);
  31         assert(req);
  32
  33         v = VLAN(netdev);
  34
  35         assert(v);
  36
  37         r = sd_netlink_message_append_u16(req, IFLA_VLAN_ID, v->id);
  38         if (r < 0)
  39                 return log_netdev_error_errno(netdev, r, "Could not append IFLA_VLAN_ID attribute: %m");
  40
  41         return 0;
  42 }
  43
  44 static int netdev_vlan_verify(NetDev *netdev, const char *filename) {
  45         VLan *v;
  46
  47         assert(netdev);
  48         assert(filename);
  49
  50         v = VLAN(netdev);
  51
  52         assert(v);
  53
  54         if (v->id == VLANID_INVALID) {
  55                 log_warning("VLAN without valid Id (%"PRIu16") configured in %s.", v->id, filename);
  56                 return -EINVAL;
  57         }
  58
  59         return 0;
  60 }
  61
  62 static void vlan_init(NetDev *netdev) {
  63         VLan *v = VLAN(netdev);
  64
  65         assert(netdev);
  66         assert(v);
  67
  68         v->id = VLANID_INVALID;
  69 }
  70
  71 const NetDevVTable vlan_vtable = {
  72         .object_size = sizeof(VLan),
  73         .init = vlan_init,
  74         .sections = "Match\0NetDev\0VLAN\0",
  75         .fill_message_create = netdev_vlan_fill_message_create,
  76         .create_type = NETDEV_CREATE_STACKED,
  77         .config_verify = netdev_vlan_verify,
  78 };