src/network/networkd-netdev-dummy.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4     This file is part of systemd.
   5
   6     Copyright 2014 Susant Sahani <susant@redhat.com>
   7     Copyright 2014 Tom Gundersen
   8
   9     systemd is free software; you can redistribute it and/or modify it
  10     under the terms of the GNU Lesser General Public License as published by
  11     the Free Software Foundation; either version 2.1 of the License, or
  12     (at your option) any later version.
  13
  14     systemd is distributed in the hope that it will be useful, but
  15     WITHOUT ANY WARRANTY; without even the implied warranty of
  16     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17     Lesser General Public License for more details.
  18
  19     You should have received a copy of the GNU Lesser General Public License
  20     along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 ***/
  22
  23 #include <netinet/ether.h>
  24 #include <arpa/inet.h>
  25 #include <net/if.h>
  26 #include <linux/veth.h>
  27
  28 #include "sd-rtnl.h"
  29 #include "networkd-netdev-dummy.h"
  30
  31 static int netdev_dummy_fill_message_create(NetDev *netdev, sd_rtnl_message *m) {
  32         int r;
  33
  34         assert(netdev);
  35         assert(netdev->ifname);
  36         assert(m);
  37
  38         r = sd_rtnl_message_append_string(m, IFLA_IFNAME, netdev->ifname);
  39         if (r < 0) {
  40                 log_error_netdev(netdev,
  41                                  "Could not append IFLA_IFNAME, attribute: %s",
  42                                  strerror(-r));
  43                 return r;
  44         }
  45
  46         if (netdev->mac) {
  47                 r = sd_rtnl_message_append_ether_addr(m, IFLA_ADDRESS, netdev->mac);
  48                 if (r < 0) {
  49                         log_error_netdev(netdev,
  50                                          "Colud not append IFLA_ADDRESS attribute: %s",
  51                                          strerror(-r));
  52                     return r;
  53                 }
  54         }
  55
  56         r = sd_rtnl_message_open_container(m, IFLA_LINKINFO);
  57         if (r < 0) {
  58                 log_error_netdev(netdev,
  59                                  "Could not append IFLA_LINKINFO attribute: %s",
  60                                  strerror(-r));
  61                 return r;
  62         }
  63
  64         r = sd_rtnl_message_open_container_union(m, IFLA_INFO_DATA, "dummy");
  65         if (r < 0) {
  66                 log_error_netdev(netdev,
  67                                  "Could not append IFLA_INFO_DATA attribute: %s",
  68                                  strerror(-r));
  69                 return r;
  70         }
  71
  72         r = sd_rtnl_message_close_container(m);
  73         if (r < 0) {
  74                 log_error_netdev(netdev,
  75                                  "Could not append IFLA_LINKINFO attribute: %s",
  76                                  strerror(-r));
  77                 return r;
  78         }
  79
  80         return r;
  81 }
  82
  83 const NetDevVTable dummy_vtable = {
  84         .fill_message_create = netdev_dummy_fill_message_create,
  85 };