SizeofRtMsg        = 0xc
	SizeofRtNexthop    = 0x8
	SizeofNdUseroptmsg = 0x10
	SizeofNdMsg        = 0xc
)

type NlMsghdr struct {
	Len   uint32
	Type  uint16
	Flags uint16
	Seq   uint32
	Pid   uint32
}

type NlMsgerr struct {
	Error int32
	Msg   NlMsghdr
}

type RtGenmsg struct {
	Family uint8
}

type NlAttr struct {
	Len  uint16
	Type uint16
}