src/network/netdev/macvlan.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 "conf-parser.h"
  23 #include "netdev/macvlan.h"
  24 #include "string-table.h"
  25
  26 static const char* const macvlan_mode_table[_NETDEV_MACVLAN_MODE_MAX] = {
  27         [NETDEV_MACVLAN_MODE_PRIVATE] = "private",
  28         [NETDEV_MACVLAN_MODE_VEPA] = "vepa",
  29         [NETDEV_MACVLAN_MODE_BRIDGE] = "bridge",
  30         [NETDEV_MACVLAN_MODE_PASSTHRU] = "passthru",
  31 };
  32
  33 DEFINE_STRING_TABLE_LOOKUP(macvlan_mode, MacVlanMode);
  34 DEFINE_CONFIG_PARSE_ENUM(config_parse_macvlan_mode, macvlan_mode, MacVlanMode, "Failed to parse macvlan mode");
  35
  36 static int netdev_macvlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *req) {
  37         MacVlan *m;
  38         int r;
  39
  40         assert(netdev);
  41         assert(link);
  42         assert(netdev->ifname);
  43
  44         if (netdev->kind == NETDEV_KIND_MACVLAN)
  45                 m = MACVLAN(netdev);
  46         else
  47                 m = MACVTAP(netdev);
  48
  49         assert(m);
  50
  51         if (m->mode != _NETDEV_MACVLAN_MODE_INVALID) {
  52                 r = sd_netlink_message_append_u32(req, IFLA_MACVLAN_MODE, m->mode);
  53                 if (r < 0)
  54                         return log_netdev_error_errno(netdev, r, "Could not append IFLA_MACVLAN_MODE attribute: %m");
  55         }
  56
  57         return 0;
  58 }
  59
  60 static void macvlan_init(NetDev *n) {
  61         MacVlan *m;
  62
  63         assert(n);
  64
  65         if (n->kind == NETDEV_KIND_MACVLAN)
  66                 m = MACVLAN(n);
  67         else
  68                 m = MACVTAP(n);
  69
  70         assert(m);
  71
  72         m->mode = _NETDEV_MACVLAN_MODE_INVALID;
  73 }
  74
  75 const NetDevVTable macvtap_vtable = {
  76         .object_size = sizeof(MacVlan),
  77         .init = macvlan_init,
  78         .sections = "Match\0NetDev\0MACVTAP\0",
  79         .fill_message_create = netdev_macvlan_fill_message_create,
  80         .create_type = NETDEV_CREATE_STACKED,
  81 };
  82
  83 const NetDevVTable macvlan_vtable = {
  84         .object_size = sizeof(MacVlan),
  85         .init = macvlan_init,
  86         .sections = "Match\0NetDev\0MACVLAN\0",
  87         .fill_message_create = netdev_macvlan_fill_message_create,
  88         .create_type = NETDEV_CREATE_STACKED,
  89 };