DLT_PFSYNC
case DLT_PFSYNC:
DLT_CHOICE(DLT_PFSYNC, "Packet filter state syncing"),
p->linktype = DLT_PFSYNC;
bpfattach(&sc->sc_if.if_bpf, ifp, DLT_PFSYNC, PFSYNC_HDRLEN);
{ pfsync_if_print, DLT_PFSYNC },