static int stf_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t params) { int err, unit; struct stf_softc *sc; struct ifnet *ifp; /* * We can only have one unit, but since unit allocation is * already locked, we use it to keep from allocating extra * interfaces. */ unit = STFUNIT; err = ifc_alloc_unit(ifc, &unit); if (err != 0) return (err); sc = malloc(sizeof(struct stf_softc), M_STF, M_WAITOK | M_ZERO); ifp = STF2IFP(sc) = if_alloc(IFT_STF); if (ifp == NULL) { free(sc, M_STF); ifc_free_unit(ifc, unit); return (ENOSPC); } ifp->if_softc = sc; #ifndef __rtems__ sc->sc_fibnum = curthread->td_proc->p_fibnum; #else /* __rtems__ */ sc->sc_fibnum = BSD_DEFAULT_FIB; #endif /* __rtems__ */ /* * Set the name manually rather then using if_initname because * we don't conform to the default naming convention for interfaces. */ strlcpy(ifp->if_xname, name, IFNAMSIZ); ifp->if_dname = ifc->ifc_name; ifp->if_dunit = IF_DUNIT_NONE; mtx_init(&(sc)->sc_ro_mtx, "stf ro", NULL, MTX_DEF); sc->encap_cookie = encap_attach_func(AF_INET, IPPROTO_IPV6, stf_encapcheck, &in_stf_protosw, sc); if (sc->encap_cookie == NULL) { if_printf(ifp, "attach failed\n"); free(sc, M_STF); ifc_free_unit(ifc, unit); return (ENOMEM); } ifp->if_mtu = IPV6_MMTU; ifp->if_ioctl = stf_ioctl; ifp->if_output = stf_output; ifp->if_snd.ifq_maxlen = ifqmaxlen; if_attach(ifp); bpfattach(ifp, DLT_NULL, sizeof(u_int32_t)); return (0); }
static int ipfw_log_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t params) { int error; int unit; struct ifnet *ifp; error = ifc_name2unit(name, &unit); if (error) return (error); error = ifc_alloc_unit(ifc, &unit); if (error) return (error); ifp = if_alloc(IFT_PFLOG); if (ifp == NULL) { ifc_free_unit(ifc, unit); return (ENOSPC); } ifp->if_dname = ipfwname; ifp->if_dunit = unit; snprintf(ifp->if_xname, IFNAMSIZ, "%s%d", ipfwname, unit); strlcpy(name, ifp->if_xname, len); ifp->if_mtu = 65536; ifp->if_flags = IFF_UP | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_init = (void *)log_dummy; ifp->if_ioctl = log_dummy; ifp->if_start = ipfw_log_start; ifp->if_output = ipfw_log_output; ifp->if_addrlen = 6; ifp->if_hdrlen = 14; ifp->if_broadcastaddr = ipfwbroadcastaddr; ifp->if_baudrate = IF_Mbps(10); LOGIF_WLOCK(); if (log_if == NULL) log_if = ifp; else { LOGIF_WUNLOCK(); if_free(ifp); ifc_free_unit(ifc, unit); return (EEXIST); } LOGIF_WUNLOCK(); if_attach(ifp); bpfattach(ifp, DLT_EN10MB, 14); return (0); }
static int usbpf_clone_create(struct if_clone *ifc, char *name, size_t len, caddr_t params) { int error; int unit; struct ifnet *ifp; struct usb_bus *ubus; error = ifc_name2unit(name, &unit); if (error) return (error); if (unit < 0) return (EINVAL); ubus = usbpf_ifname2ubus(name); if (ubus == NULL) return (1); if (ubus->ifp != NULL) return (1); error = ifc_alloc_unit(ifc, &unit); if (error) { ifc_free_unit(ifc, unit); device_printf(ubus->parent, "usbpf: Could not allocate " "instance\n"); return (error); } ifp = ubus->ifp = if_alloc(IFT_USB); if (ifp == NULL) { ifc_free_unit(ifc, unit); device_printf(ubus->parent, "usbpf: Could not allocate " "instance\n"); return (ENOSPC); } strlcpy(ifp->if_xname, name, sizeof(ifp->if_xname)); ifp->if_softc = ubus; ifp->if_dname = usbusname; ifp->if_dunit = unit; ifp->if_ioctl = usbpf_ioctl; if_attach(ifp); ifp->if_flags |= IFF_UP; rt_ifmsg(ifp); /* * XXX According to the specification of DLT_USB, it indicates * packets beginning with USB setup header. But not sure all * packets would be. */ bpfattach(ifp, DLT_USB, USBPF_HDR_LEN); return (0); }
static int t4_cloner_create(struct if_clone *ifc, char *name, size_t len, caddr_t params) { struct match_rr mrr; struct adapter *sc; struct ifnet *ifp; int rc, unit; const uint8_t lla[ETHER_ADDR_LEN] = {0, 0, 0, 0, 0, 0}; mrr.name = name; mrr.lock = 1; mrr.sc = NULL; mrr.rc = ENOENT; t4_iterate(match_name, &mrr); if (mrr.rc != 0) return (mrr.rc); sc = mrr.sc; KASSERT(sc != NULL, ("%s: name (%s) matched but softc is NULL", __func__, name)); ASSERT_SYNCHRONIZED_OP(sc); sx_xlock(&t4_trace_lock); if (sc->ifp != NULL) { rc = EEXIST; goto done; } if (sc->traceq < 0) { rc = EAGAIN; goto done; } unit = -1; rc = ifc_alloc_unit(ifc, &unit); if (rc != 0) goto done; ifp = if_alloc(IFT_ETHER); if (ifp == NULL) { ifc_free_unit(ifc, unit); rc = ENOMEM; goto done; } /* Note that if_xname is not <if_dname><if_dunit>. */ strlcpy(ifp->if_xname, name, sizeof(ifp->if_xname)); ifp->if_dname = t4_cloner_name; ifp->if_dunit = unit; ifp->if_init = tracer_init; ifp->if_flags = IFF_SIMPLEX | IFF_DRV_RUNNING; ifp->if_ioctl = tracer_ioctl; ifp->if_transmit = tracer_transmit; ifp->if_qflush = tracer_qflush; ifp->if_capabilities = IFCAP_JUMBO_MTU | IFCAP_VLAN_MTU; ifmedia_init(&sc->media, IFM_IMASK, tracer_media_change, tracer_media_status); ifmedia_add(&sc->media, IFM_ETHER | IFM_FDX | IFM_NONE, 0, NULL); ifmedia_set(&sc->media, IFM_ETHER | IFM_FDX | IFM_NONE); ether_ifattach(ifp, lla); mtx_lock(&sc->ifp_lock); ifp->if_softc = sc; sc->ifp = ifp; mtx_unlock(&sc->ifp_lock); done: sx_xunlock(&t4_trace_lock); end_synchronized_op(sc, 0); return (rc); }