pppoutput         250 net/if_ppp.c       sc->sc_if.if_output = pppoutput;
pppoutput         154 net/if_ppp.h   int pppoutput(struct ifnet *, struct mbuf *, struct sockaddr *,
pppoutput         146 net/if_pppvar.h int	pppoutput(struct ifnet *, struct mbuf *,