83 	struct ifnet		*ifp;  in disc_clone_create()  local
87 	ifp = sc->sc_ifp = if_alloc(IFT_LOOP);  in disc_clone_create()
88 	ifp->if_softc = sc;  in disc_clone_create()
89 	if_initname(ifp, discname, unit);  in disc_clone_create()
90 	ifp->if_mtu = DSMTU;  in disc_clone_create()
101 	ifp->if_flags = IFF_LOOPBACK | IFF_MULTICAST;  in disc_clone_create()
102 	ifp->if_drv_flags = IFF_DRV_RUNNING;  in disc_clone_create()
103 	ifp->if_ioctl = discioctl;  in disc_clone_create()
104 	ifp->if_output = discoutput;  in disc_clone_create()
105 	ifp->if_hdrlen = 0;  in disc_clone_create()
106 	ifp->if_addrlen = 0;  in disc_clone_create()
107 	ifp->if_snd.ifq_maxlen = 20;  in disc_clone_create()
108 	if_attach(ifp);  in disc_clone_create()
109 	bpfattach(ifp, DLT_NULL, sizeof(u_int32_t));  in disc_clone_create()
115 disc_clone_destroy(struct ifnet *ifp)  in disc_clone_destroy()  argument
119 	sc = ifp->if_softc;  in disc_clone_destroy()
121 	bpfdetach(ifp);  in disc_clone_destroy()
122 	if_detach(ifp);  in disc_clone_destroy()
123 	if_free(ifp);  in disc_clone_destroy()
170 discoutput(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,  in discoutput()  argument
183 	if (bpf_peers_present(ifp->if_bpf))  in discoutput()
184 		bpf_mtap2(ifp->if_bpf, &af, sizeof(af), m);  in discoutput()
186 	m->m_pkthdr.rcvif = ifp;  in discoutput()
188 	if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1);  in discoutput()
189 	if_inc_counter(ifp, IFCOUNTER_OBYTES, m->m_pkthdr.len);  in discoutput()
199 discioctl(struct ifnet *ifp, u_long cmd, caddr_t data)  in discioctl()  argument
206 		ifp->if_flags |= IFF_UP;  in discioctl()
233 		ifp->if_mtu = ifr->ifr_mtu;  in discioctl()