func execute(s *nl.NetlinkSocket, req *nl.NetlinkRequest, resType uint16) ([][]byte, error) { var ( err error ) if err := s.Send(req); err != nil { return nil, err } pid, err := s.GetPid() if err != nil { return nil, err } var res [][]byte done: for { msgs, err := s.Receive() if err != nil { return nil, err } for _, m := range msgs { if m.Header.Seq != req.Seq { return nil, fmt.Errorf("Wrong Seq nr %d, expected %d", m.Header.Seq, req.Seq) } if m.Header.Pid != pid { return nil, fmt.Errorf("Wrong pid %d, expected %d", m.Header.Pid, pid) } if m.Header.Type == syscall.NLMSG_DONE { break done } if m.Header.Type == syscall.NLMSG_ERROR { error := int32(native.Uint32(m.Data[0:4])) if error == 0 { break done } return nil, syscall.Errno(-error) } if resType != 0 && m.Header.Type != resType { continue } res = append(res, m.Data) if m.Header.Flags&syscall.NLM_F_MULTI == 0 { break done } } } return res, nil }