src/network/netdev/vxcan.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include <linux/can/vxcan.h>
   4 #include <linux/if_arp.h>
   5
   6 #include "vxcan.h"
   7
   8 static int netdev_vxcan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) {
   9         assert(!link);
  10         assert(m);
  11
  12         VxCan *v = VXCAN(netdev);
  13         int r;
  14
  15         r = sd_netlink_message_open_container(m, VXCAN_INFO_PEER);
  16         if (r < 0)
  17                 return r;
  18
  19         if (v->ifname_peer) {
  20                 r = sd_netlink_message_append_string(m, IFLA_IFNAME, v->ifname_peer);
  21                 if (r < 0)
  22                         return r;
  23         }
  24
  25         r = sd_netlink_message_close_container(m);
  26         if (r < 0)
  27                 return r;
  28
  29         return 0;
  30 }
  31
  32 static int netdev_vxcan_verify(NetDev *netdev, const char *filename) {
  33         assert(filename);
  34
  35         VxCan *v = VXCAN(netdev);
  36
  37         if (!v->ifname_peer)
  38                 return log_netdev_warning_errno(netdev, SYNTHETIC_ERRNO(EINVAL),
  39                                                 "VxCan NetDev without peer name configured in %s. Ignoring", filename);
  40
  41         return 0;
  42 }
  43
  44 static void vxcan_done(NetDev *netdev) {
  45         VxCan *v = VXCAN(netdev);
  46
  47         free(v->ifname_peer);
  48 }
  49
  50 const NetDevVTable vxcan_vtable = {
  51         .object_size = sizeof(VxCan),
  52         .sections = NETDEV_COMMON_SECTIONS "VXCAN\0",
  53         .done = vxcan_done,
  54         .fill_message_create = netdev_vxcan_fill_message_create,
  55         .create_type = NETDEV_CREATE_INDEPENDENT,
  56         .config_verify = netdev_vxcan_verify,
  57         .iftype = ARPHRD_CAN,
  58 };