src/network/netdev/vxcan.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright © 2017 Susant Sahani
   4 ***/
   5
   6 #include "netdev/vxcan.h"
   7 #include "missing.h"
   8
   9 static int netdev_vxcan_fill_message_create(NetDev *netdev, Link *link, sd_netlink_message *m) {
  10         VxCan *v;
  11         int r;
  12
  13         assert(netdev);
  14         assert(!link);
  15         assert(m);
  16
  17         v = VXCAN(netdev);
  18
  19         assert(v);
  20
  21         r = sd_netlink_message_open_container(m, VXCAN_INFO_PEER);
  22         if (r < 0)
  23                 return log_netdev_error_errno(netdev, r, "Could not append VXCAN_INFO_PEER attribute: %m");
  24
  25         if (v->ifname_peer) {
  26                 r = sd_netlink_message_append_string(m, IFLA_IFNAME, v->ifname_peer);
  27                 if (r < 0)
  28                         return log_error_errno(r, "Failed to add vxcan netlink interface peer name: %m");
  29         }
  30
  31         r = sd_netlink_message_close_container(m);
  32         if (r < 0)
  33                 return log_netdev_error_errno(netdev, r, "Could not append VXCAN_INFO_PEER attribute: %m");
  34
  35         return r;
  36 }
  37
  38 static int netdev_vxcan_verify(NetDev *netdev, const char *filename) {
  39         VxCan *v;
  40
  41         assert(netdev);
  42         assert(filename);
  43
  44         v = VXCAN(netdev);
  45
  46         assert(v);
  47
  48         if (!v->ifname_peer) {
  49                 log_warning("VxCan NetDev without peer name configured in %s. Ignoring", filename);
  50                 return -EINVAL;
  51         }
  52
  53         return 0;
  54 }
  55
  56 static void vxcan_done(NetDev *n) {
  57         VxCan *v;
  58
  59         assert(n);
  60
  61         v = VXCAN(n);
  62
  63         assert(v);
  64
  65         free(v->ifname_peer);
  66 }
  67
  68 const NetDevVTable vxcan_vtable = {
  69         .object_size = sizeof(VxCan),
  70         .sections = "Match\0NetDev\0VXCAN\0",
  71         .done = vxcan_done,
  72         .fill_message_create = netdev_vxcan_fill_message_create,
  73         .create_type = NETDEV_CREATE_INDEPENDENT,
  74         .config_verify = netdev_vxcan_verify,
  75 };