TUN_VNET_TNL_SIZE
return TUN_VNET_TNL_SIZE;
if (vnet_hdr_sz >= TUN_VNET_TNL_SIZE)
(TUN_VNET_TNL_SIZE + ETH_HLEN + UDP_TUNNEL_GENEVE_6IN6_HDRLEN + \
if (validate_hdrlen(&cur, &len, TUN_VNET_TNL_SIZE))
self->fd = tun_open(self->ifname, flags, TUN_VNET_TNL_SIZE, features,
memcpy(vnet_hdr, buf, TUN_VNET_TNL_SIZE);