proto_add_host_dependency() {
local interface="$1"
local host="$2"
+ local ifname="$3"
# execute in subshell to not taint callers env
# see tickets #11046, #11545, #11570
json_init
json_add_int action 6
json_add_string host "$host"
+ [ -n "$ifname" ] && json_add_string ifname "$ifname"
_proto_notify "$interface" -S
)
}