src/network/netdev/macvlan.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright 2013 Tom Gundersen <teg@jklm.no>
   4 ***/
   5
   6 #include <net/if.h>
   7
   8 #include "conf-parser.h"
   9 #include "netdev/macvlan.h"
  10 #include "string-table.h"
  11
  12 static const char* const macvlan_mode_table[_NETDEV_MACVLAN_MODE_MAX] = {
  13         [NETDEV_MACVLAN_MODE_PRIVATE] = "private",
  14         [NETDEV_MACVLAN_MODE_VEPA] = "vepa",
  15         [NETDEV_MACVLAN_MODE_BRIDGE] = "bridge",
  16         [NETDEV_MACVLAN_MODE_PASSTHRU] = "passthru",
  17 };
  18
  19 DEFINE_STRING_TABLE_LOOKUP(macvlan_mode, MacVlanMode);
  20 DEFINE_CONFIG_PARSE_ENUM(config_parse_macvlan_mode, macvlan_mode, MacVlanMode, "Failed to parse macvlan mode");
  21
  22 static int netdev_macvlan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *req) {
  23         MacVlan *m;
  24         int r;
  25
  26         assert(netdev);
  27         assert(link);
  28         assert(netdev->ifname);
  29
  30         if (netdev->kind == NETDEV_KIND_MACVLAN)
  31                 m = MACVLAN(netdev);
  32         else
  33                 m = MACVTAP(netdev);
  34
  35         assert(m);
  36
  37         if (m->mode != _NETDEV_MACVLAN_MODE_INVALID) {
  38                 r = sd_netlink_message_append_u32(req, IFLA_MACVLAN_MODE, m->mode);
  39                 if (r < 0)
  40                         return log_netdev_error_errno(netdev, r, "Could not append IFLA_MACVLAN_MODE attribute: %m");
  41         }
  42
  43         return 0;
  44 }
  45
  46 static void macvlan_init(NetDev *n) {
  47         MacVlan *m;
  48
  49         assert(n);
  50
  51         if (n->kind == NETDEV_KIND_MACVLAN)
  52                 m = MACVLAN(n);
  53         else
  54                 m = MACVTAP(n);
  55
  56         assert(m);
  57
  58         m->mode = _NETDEV_MACVLAN_MODE_INVALID;
  59 }
  60
  61 const NetDevVTable macvtap_vtable = {
  62         .object_size = sizeof(MacVlan),
  63         .init = macvlan_init,
  64         .sections = "Match\0NetDev\0MACVTAP\0",
  65         .fill_message_create = netdev_macvlan_fill_message_create,
  66         .create_type = NETDEV_CREATE_STACKED,
  67 };
  68
  69 const NetDevVTable macvlan_vtable = {
  70         .object_size = sizeof(MacVlan),
  71         .init = macvlan_init,
  72         .sections = "Match\0NetDev\0MACVLAN\0",
  73         .fill_message_create = netdev_macvlan_fill_message_create,
  74         .create_type = NETDEV_CREATE_STACKED,
  75 };