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 struct usb_bus *
usbpf_ifname2ubus(const char *ifname)
{
device_t dev;
devclass_t dc;
int unit;
int error;
if (strncmp(ifname, usbusname, sizeof(usbusname) - 1) != 0)
return (NULL);
error = ifc_name2unit(ifname, &unit);
if (error || unit < 0)
return (NULL);
dc = devclass_find(usbusname);
if (dc == NULL)
return (NULL);
dev = devclass_get_device(dc, unit);
if (dev == NULL)
return (NULL);
return (device_get_softc(dev));
}
