func LsfSocket(ifindex, proto int) (int, error) {
	var lsall SockaddrLinklayer
	// This is missing SOCK_CLOEXEC, but adding the flag
	// could break callers.
	s, e := Socket(AF_PACKET, SOCK_RAW, proto)
	if e != nil {
		return 0, e
	}
	p := (*[2]byte)(unsafe.Pointer(&lsall.Protocol))
	p[0] = byte(proto >> 8)
	p[1] = byte(proto)
	lsall.Ifindex = ifindex
	e = Bind(s, &lsall)
	if e != nil {

}

type Cmsghdr struct {
	Len   uint64
	Level int32
	Type  int32
}

type Inet4Pktinfo struct {
	Ifindex  int32
	Spec_dst [4]byte /* in_addr */
	Addr     [4]byte /* in_addr */
}

type Inet6Pktinfo struct {
	Addr    [16]byte /* in6_addr */
	Ifindex uint32
}

type IPv6MTUInfo struct {
	Addr RawSockaddrInet6
	Mtu  uint32
}

type ICMPv6Filter struct {

}

type Cmsghdr struct {
	Len   uint32
	Level int32
	Type  int32
}

type Inet4Pktinfo struct {
	Ifindex  int32
	Spec_dst [4]byte /* in_addr */
	Addr     [4]byte /* in_addr */
}

type Inet6Pktinfo struct {
	Addr    [16]byte /* in6_addr */
	Ifindex uint32
}

type IPv6MTUInfo struct {
	Addr RawSockaddrInet6
	Mtu  uint32
}

type ICMPv6Filter struct {

}

type Cmsghdr struct {
	Len   uint32
	Level int32
	Type  int32
}

type Inet4Pktinfo struct {
	Ifindex  int32
	Spec_dst [4]byte /* in_addr */
	Addr     [4]byte /* in_addr */
}

type Inet6Pktinfo struct {
	Addr    [16]byte /* in6_addr */
	Ifindex uint32
}

type IPv6MTUInfo struct {
	Addr RawSockaddrInet6
	Mtu  uint32
}

type ICMPv6Filter struct {

	if err != nil {
		return nil, err
	}
	msgs, err := route.ParseRIB(syscall.NET_RT_IFMALIST, rib)
	if err != nil {
		return nil, err
	}
	ifmat := make([]Addr, 0, len(msgs))
	for _, m := range msgs {
		switch m := m.(type) {
		case *route.InterfaceMulticastAddrMessage:
			if ifi.Index != m.Index {
				continue
			}
			var ip IP

}

type Cmsghdr struct {
	Len   uint64
	Level int32
	Type  int32
}

type Inet4Pktinfo struct {
	Ifindex  int32
	Spec_dst [4]byte /* in_addr */
	Addr     [4]byte /* in_addr */
}

type Inet6Pktinfo struct {
	Addr    [16]byte /* in6_addr */
	Ifindex uint32
}

type IPv6MTUInfo struct {
	Addr RawSockaddrInet6
	Mtu  uint32
}

type ICMPv6Filter struct {

}

type Cmsghdr struct {
	Len   uint32
	Level int32
	Type  int32
}

type Inet4Pktinfo struct {
	Ifindex  int32
	Spec_dst [4]byte /* in_addr */
	Addr     [4]byte /* in_addr */
}

type Inet6Pktinfo struct {
	Addr    [16]byte /* in6_addr */
	Ifindex uint32
}

type IPv6MTUInfo struct {
	Addr RawSockaddrInet6
	Mtu  uint32
}

type ICMPv6Filter struct {

		case syscall.RTM_NEWLINK:
			ifim := (*syscall.IfInfomsg)(unsafe.Pointer(&m.Data[0]))
			if ifindex == 0 || ifindex == int(ifim.Index) {
				attrs, err := syscall.ParseNetlinkRouteAttr(&m)
				if err != nil {
					return nil, os.NewSyscallError("parsenetlinkrouteattr", err)
				}
				ift = append(ift, *newLink(ifim, attrs))
				if ifindex == int(ifim.Index) {
					break loop
				}
			}
		}
	}
	return ift, nil
}

const (

}

type Cmsghdr struct {
	Len   uint32
	Level int32
	Type  int32
}

type Inet4Pktinfo struct {
	Ifindex  int32
	Spec_dst [4]byte /* in_addr */
	Addr     [4]byte /* in_addr */
}

type Inet6Pktinfo struct {
	Addr    [16]byte /* in6_addr */
	Ifindex uint32
}

type IPv6MTUInfo struct {
	Addr RawSockaddrInet6
	Mtu  uint32
}

type ICMPv6Filter struct {

}

type Cmsghdr struct {
	Len   uint64
	Level int32
	Type  int32
}

type Inet4Pktinfo struct {
	Ifindex  int32
	Spec_dst [4]byte /* in_addr */
	Addr     [4]byte /* in_addr */
}

type Inet6Pktinfo struct {
	Addr    [16]byte /* in6_addr */
	Ifindex uint32
}

type IPv6MTUInfo struct {
	Addr RawSockaddrInet6
	Mtu  uint32
}

type ICMPv6Filter struct {