tab, err := syscall.NetlinkRIB(syscall.RTM_GETLINK, syscall.AF_UNSPEC)
	if err != nil {
		return nil, os.NewSyscallError("netlinkrib", err)
	}
	msgs, err := syscall.ParseNetlinkMessage(tab)
	if err != nil {
		return nil, os.NewSyscallError("parsenetlinkmessage", err)
	}
	var ift []Interface
loop:
	for _, m := range msgs {
		switch m.Header.Type {
		case syscall.NLMSG_DONE:
			break loop
		case syscall.RTM_NEWLINK:

}

// NetlinkMessage represents a netlink message.
type NetlinkMessage struct {
	Header NlMsghdr
	Data   []byte
}

// ParseNetlinkMessage parses b as an array of netlink messages and
// returns the slice containing the NetlinkMessage structures.
func ParseNetlinkMessage(b []byte) ([]NetlinkMessage, error) {
	var msgs []NetlinkMessage
	for len(b) >= NLMSG_HDRLEN {
		h, dbuf, dlen, err := netlinkMessageHeaderAndData(b)

			0, 0, 1, 237, 206, 31, 144, 73, 197, 128, 86, 250, 60, 192, 97, 128, 24, 1, 86, 104, 64, 0, 0, 1, 1, 8,
			10, 0, 52, 198, 200, 0, 51, 135, 232, 101, 115, 97, 103, 103, 10,
		},
	} {
		m, err := syscall.ParseNetlinkMessage(b)
		if err != syscall.EINVAL {
			t.Errorf("#%d: got %v; want EINVAL", i, err)
		}
		if m != nil {
			t.Errorf("#%d: got %v; want nil", i, m)
		}
	}
}

pkg syscall (linux-386), func Openat(int, string, int, uint32) (int, error)
pkg syscall (linux-386), func ParseDirent([]uint8, int, []string) (int, int, []string)
pkg syscall (linux-386), func ParseNetlinkMessage([]uint8) ([]NetlinkMessage, error)
pkg syscall (linux-386), func ParseNetlinkRouteAttr(*NetlinkMessage) ([]NetlinkRouteAttr, error)

		{"PT_THUPDATE", Const, 0},
		{"PT_TRACE_ME", Const, 0},
		{"PT_WRITE_D", Const, 0},
		{"PT_WRITE_I", Const, 0},
		{"PT_WRITE_U", Const, 0},
		{"ParseDirent", Func, 0},
		{"ParseNetlinkMessage", Func, 0},
		{"ParseNetlinkRouteAttr", Func, 0},
		{"ParseRoutingMessage", Func, 0},
		{"ParseRoutingSockaddr", Func, 0},
		{"ParseSocketControlMessage", Func, 0},
		{"ParseUnixCredentials", Func, 0},

pkg syscall (linux-arm-cgo), func Openat(int, string, int, uint32) (int, error)
pkg syscall (linux-arm-cgo), func ParseDirent([]uint8, int, []string) (int, int, []string)
pkg syscall (linux-arm-cgo), func ParseNetlinkMessage([]uint8) ([]NetlinkMessage, error)
pkg syscall (linux-arm-cgo), func ParseNetlinkRouteAttr(*NetlinkMessage) ([]NetlinkRouteAttr, error)