{
  liminix
, lib
}:
{ ifname, primary, vid, untagged } :
let
  inherit (lib) optionalString;
  inherit (liminix.services) oneshot;
in oneshot rec {
  name = "${ifname}.link";
  up = ''
    ip link add link $(output ${primary} ifname) name ${ifname} type vlan id ${vid}
    ${optionalString untagged.egress "bridge vlan add dev ${ifname} vid ${vid} pvid untagged master"}
    ${liminix.networking.ifup name ifname}
    (in_outputs ${name}
     echo ${ifname} > ifname
    )
  '';
  down = "ip link set down dev ${ifname}";
  dependencies = [ primary ];
}