package windows import ( "fmt" "strings" "syscall" "time" "unsafe" "github.com/pkg/errors" ) var ( sizeofUint32 = 4 sizeofProcessEntry32 = uint32(unsafe.Sizeof(ProcessEntry32{})) sizeofProcessMemoryCountersEx = uint32(unsafe.Sizeof(ProcessMemoryCountersEx{})) sizeofMemoryStatusEx = uint32(unsafe.Sizeof(MemoryStatusEx{})) ) // Process-specific access rights. Others are declared in the syscall package. // https://msdn.microsoft.com/en-us/library/windows/desktop/ms684880(v=vs.85).aspx const ( PROCESS_QUERY_LIMITED_INFORMATION uint32 = 0x1000 PROCESS_VM_READ uint32 = 0x0010 ) // error codes for GetVolumeInformation function const ( ERROR_INVALID_FUNCTION syscall.Errno = 1 ERROR_NOT_READY syscall.Errno = 21 ) // SizeOfRtlUserProcessParameters gives the size // of the RtlUserProcessParameters struct. const SizeOfRtlUserProcessParameters = unsafe.Sizeof(RtlUserProcessParameters{}) // MAX_PATH is the maximum length for a path in Windows. // https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx const MAX_PATH = 260 // DriveType represents a type of drive (removable, fixed, CD-ROM, RAM disk, or // network drive). type DriveType uint32 // Drive types as returned by GetDriveType. // https://msdn.microsoft.com/en-us/library/windows/desktop/aa364939(v=vs.85).aspx const ( DRIVE_UNKNOWN DriveType = iota DRIVE_NO_ROOT_DIR DRIVE_REMOVABLE DRIVE_FIXED DRIVE_REMOTE DRIVE_CDROM DRIVE_RAMDISK ) // UnicodeString is Go's equivalent for the _UNICODE_STRING struct. type UnicodeString struct { Size uint16 MaximumLength uint16 Buffer uintptr } // RtlUserProcessParameters is Go's equivalent for the // _RTL_USER_PROCESS_PARAMETERS struct. // A few undocumented fields are exposed. type RtlUserProcessParameters struct { Reserved1 [16]byte Reserved2 [5]uintptr CurrentDirectoryPath UnicodeString CurrentDirectoryHandle uintptr DllPath UnicodeString ImagePathName UnicodeString CommandLine UnicodeString } func (dt DriveType) String() string { names := map[DriveType]string{ DRIVE_UNKNOWN: "unknown", DRIVE_NO_ROOT_DIR: "invalid", DRIVE_REMOVABLE: "removable", DRIVE_FIXED: "fixed", DRIVE_REMOTE: "remote", DRIVE_CDROM: "cdrom", DRIVE_RAMDISK: "ramdisk", } name, found := names[dt] if !found { return "unknown DriveType value" } return name } // Flags that can be used with CreateToolhelp32Snapshot. const ( TH32CS_INHERIT uint32 = 0x80000000 // Indicates that the snapshot handle is to be inheritable. TH32CS_SNAPHEAPLIST uint32 = 0x00000001 // Includes all heaps of the process specified in th32ProcessID in the snapshot. TH32CS_SNAPMODULE uint32 = 0x00000008 // Includes all modules of the process specified in th32ProcessID in the snapshot. TH32CS_SNAPMODULE32 uint32 = 0x00000010 // Includes all 32-bit modules of the process specified in th32ProcessID in the snapshot when called from a 64-bit process. TH32CS_SNAPPROCESS uint32 = 0x00000002 // Includes all processes in the system in the snapshot. TH32CS_SNAPTHREAD uint32 = 0x00000004 // Includes all threads in the system in the snapshot. ) // ProcessEntry32 is an equivalent representation of PROCESSENTRY32 in the // Windows API. It contains a process's information. Do not modify or reorder. // https://msdn.microsoft.com/en-us/library/windows/desktop/ms684839(v=vs.85).aspx type ProcessEntry32 struct { size uint32 CntUsage uint32 ProcessID uint32 DefaultHeapID uintptr ModuleID uint32 CntThreads uint32 ParentProcessID uint32 PriorityClassBase int32 Flags uint32 exeFile [MAX_PATH]uint16 } // ExeFile returns the name of the executable file for the process. It does // not contain the full path. func (p ProcessEntry32) ExeFile() string { return syscall.UTF16ToString(p.exeFile[:]) } func (p ProcessEntry32) String() string { return fmt.Sprintf("{CntUsage:%v ProcessID:%v DefaultHeapID:%v ModuleID:%v "+ "CntThreads:%v ParentProcessID:%v PriorityClassBase:%v Flags:%v ExeFile:%v", p.CntUsage, p.ProcessID, p.DefaultHeapID, p.ModuleID, p.CntThreads, p.ParentProcessID, p.PriorityClassBase, p.Flags, p.ExeFile()) } // MemoryStatusEx is an equivalent representation of MEMORYSTATUSEX in the // Windows API. It contains information about the current state of both physical // and virtual memory, including extended memory. // https://msdn.microsoft.com/en-us/library/windows/desktop/aa366770 type MemoryStatusEx struct { length uint32 MemoryLoad uint32 TotalPhys uint64 AvailPhys uint64 TotalPageFile uint64 AvailPageFile uint64 TotalVirtual uint64 AvailVirtual uint64 AvailExtendedVirtual uint64 } // ProcessMemoryCountersEx is an equivalent representation of // PROCESS_MEMORY_COUNTERS_EX in the Windows API. // https://msdn.microsoft.com/en-us/library/windows/desktop/ms684874(v=vs.85).aspx type ProcessMemoryCountersEx struct { cb uint32 PageFaultCount uint32 PeakWorkingSetSize uintptr WorkingSetSize uintptr QuotaPeakPagedPoolUsage uintptr QuotaPagedPoolUsage uintptr QuotaPeakNonPagedPoolUsage uintptr QuotaNonPagedPoolUsage uintptr PagefileUsage uintptr PeakPagefileUsage uintptr PrivateUsage uintptr } // GetLogicalDriveStrings returns a list of drives in the system. // https://msdn.microsoft.com/en-us/library/windows/desktop/aa364975(v=vs.85).aspx func GetLogicalDriveStrings() ([]string, error) { // Determine the size of the buffer required to receive all drives. bufferLength, err := _GetLogicalDriveStringsW(0, nil) if err != nil { return nil, errors.Wrap(err, "GetLogicalDriveStringsW failed to get buffer length") } if bufferLength < 0 { return nil, errors.New("GetLogicalDriveStringsW returned an invalid buffer length") } buffer := make([]uint16, bufferLength) _, err = _GetLogicalDriveStringsW(uint32(len(buffer)), &buffer[0]) if err != nil { return nil, errors.Wrap(err, "GetLogicalDriveStringsW failed") } return UTF16SliceToStringSlice(buffer), nil } // GetAccessPaths returns the list of access paths for volumes in the system. func GetAccessPaths() ([]string, error) { volumes, err := GetVolumes() if err != nil { return nil, errors.Wrap(err, "GetVolumes failed") } var paths []string for _, volumeName := range volumes { volumePaths, err := GetVolumePathsForVolume(volumeName) if err != nil { return nil, errors.Wrapf(err, "failed to get list of access paths for volume '%s'", volumeName) } if len(volumePaths) == 0 { continue } // Get only the first path paths = append(paths, volumePaths[0]) } return paths, nil } // GetVolumes returs the list of volumes in the system. // https://docs.microsoft.com/es-es/windows/desktop/api/fileapi/nf-fileapi-findfirstvolumew func GetVolumes() ([]string, error) { buffer := make([]uint16, MAX_PATH+1) var volumes []string h, err := _FindFirstVolume(&buffer[0], uint32(len(buffer))) if err != nil { return nil, errors.Wrap(err, "FindFirstVolumeW failed") } defer _FindVolumeClose(h) for { volumes = append(volumes, syscall.UTF16ToString(buffer)) err = _FindNextVolume(h, &buffer[0], uint32(len(buffer))) if err != nil { if errors.Cause(err) == syscall.ERROR_NO_MORE_FILES { break } return nil, errors.Wrap(err, "FindNextVolumeW failed") } } return volumes, nil } // GetVolumePathsForVolume returns the list of volume paths for a volume. // https://docs.microsoft.com/en-us/windows/desktop/api/FileAPI/nf-fileapi-getvolumepathnamesforvolumenamew func GetVolumePathsForVolume(volumeName string) ([]string, error) { var length uint32 err := _GetVolumePathNamesForVolumeName(volumeName, nil, 0, &length) if errors.Cause(err) != syscall.ERROR_MORE_DATA { return nil, errors.Wrap(err, "GetVolumePathNamesForVolumeNameW failed to get needed buffer length") } if length == 0 { // Not mounted, no paths, that's ok return nil, nil } buffer := make([]uint16, length*(MAX_PATH+1)) err = _GetVolumePathNamesForVolumeName(volumeName, &buffer[0], length, &length) if err != nil { return nil, errors.Wrap(err, "GetVolumePathNamesForVolumeNameW failed") } return UTF16SliceToStringSlice(buffer), nil } // GlobalMemoryStatusEx retrieves information about the system's current usage // of both physical and virtual memory. // https://msdn.microsoft.com/en-us/library/windows/desktop/aa366589(v=vs.85).aspx func GlobalMemoryStatusEx() (MemoryStatusEx, error) { memoryStatusEx := MemoryStatusEx{length: sizeofMemoryStatusEx} err := _GlobalMemoryStatusEx(&memoryStatusEx) if err != nil { return MemoryStatusEx{}, errors.Wrap(err, "GlobalMemoryStatusEx failed") } return memoryStatusEx, nil } // GetProcessMemoryInfo retrieves information about the memory usage of the // specified process. // https://msdn.microsoft.com/en-us/library/windows/desktop/ms683219(v=vs.85).aspx func GetProcessMemoryInfo(handle syscall.Handle) (ProcessMemoryCountersEx, error) { processMemoryCountersEx := ProcessMemoryCountersEx{cb: sizeofProcessMemoryCountersEx} err := _GetProcessMemoryInfo(handle, &processMemoryCountersEx, processMemoryCountersEx.cb) if err != nil { return ProcessMemoryCountersEx{}, errors.Wrap(err, "GetProcessMemoryInfo failed") } return processMemoryCountersEx, nil } // GetProcessImageFileName Retrieves the name of the executable file for the // specified process. // https://msdn.microsoft.com/en-us/library/windows/desktop/ms683217(v=vs.85).aspx func GetProcessImageFileName(handle syscall.Handle) (string, error) { buffer := make([]uint16, MAX_PATH) _, err := _GetProcessImageFileName(handle, &buffer[0], uint32(len(buffer))) if err != nil { return "", errors.Wrap(err, "GetProcessImageFileName failed") } return syscall.UTF16ToString(buffer), nil } // GetSystemTimes retrieves system timing information. On a multiprocessor // system, the values returned are the sum of the designated times across all // processors. The returned kernel time does not include the system idle time. // https://msdn.microsoft.com/en-us/library/windows/desktop/ms724400(v=vs.85).aspx func GetSystemTimes() (idle, kernel, user time.Duration, err error) { var idleTime, kernelTime, userTime syscall.Filetime err = _GetSystemTimes(&idleTime, &kernelTime, &userTime) if err != nil { return 0, 0, 0, errors.Wrap(err, "GetSystemTimes failed") } idle = FiletimeToDuration(&idleTime) kernel = FiletimeToDuration(&kernelTime) // Kernel time includes idle time so we subtract it out. user = FiletimeToDuration(&userTime) return idle, kernel - idle, user, nil } // FiletimeToDuration converts a Filetime to a time.Duration. Do not use this // method to convert a Filetime to an actual clock time, for that use // Filetime.Nanosecond(). func FiletimeToDuration(ft *syscall.Filetime) time.Duration { n := int64(ft.HighDateTime)<<32 + int64(ft.LowDateTime) // in 100-nanosecond intervals return time.Duration(n * 100) } // GetDriveType Determines whether a disk drive is a removable, fixed, CD-ROM, // RAM disk, or network drive. A trailing backslash is required on the // rootPathName. // https://msdn.microsoft.com/en-us/library/windows/desktop/aa364939 func GetDriveType(rootPathName string) (DriveType, error) { rootPathNamePtr, err := syscall.UTF16PtrFromString(rootPathName) if err != nil { return DRIVE_UNKNOWN, errors.Wrapf(err, "UTF16PtrFromString failed for rootPathName=%v", rootPathName) } dt, err := _GetDriveType(rootPathNamePtr) if err != nil { return DRIVE_UNKNOWN, errors.Wrapf(err, "GetDriveType failed for rootPathName=%v", rootPathName) } return dt, nil } // GetFilesystemType returns file system type information at the given root path. // https://docs.microsoft.com/en-us/windows/win32/api/fileapi/nf-fileapi-getvolumeinformationw func GetFilesystemType(rootPathName string) (string, error) { rootPathNamePtr, err := syscall.UTF16PtrFromString(rootPathName) if err != nil { return "", errors.Wrapf(err, "UTF16PtrFromString failed for rootPathName=%v", rootPathName) } buffer := make([]uint16, MAX_PATH+1) success, err := _GetVolumeInformation(rootPathNamePtr, nil, 0, nil, nil, nil, &buffer[0], MAX_PATH) // check if CD-ROM or other type that is not supported in GetVolumeInformation function if err == ERROR_NOT_READY || err == ERROR_INVALID_FUNCTION { return "", nil } if !success { return "", errors.Wrap(err, "GetVolumeInformationW failed") } return strings.ToLower(syscall.UTF16ToString(buffer)), nil } // EnumProcesses retrieves the process identifier for each process object in the // system. This function can return a max of 65536 PIDs. If there are more // processes than that then this will not return them all. // https://msdn.microsoft.com/en-us/library/windows/desktop/ms682629(v=vs.85).aspx func EnumProcesses() ([]uint32, error) { enumProcesses := func(size int) ([]uint32, error) { var ( pids = make([]uint32, size) sizeBytes = len(pids) * sizeofUint32 bytesWritten uint32 ) err := _EnumProcesses(&pids[0], uint32(sizeBytes), &bytesWritten) pidsWritten := int(bytesWritten) / sizeofUint32 if int(bytesWritten)%sizeofUint32 != 0 || pidsWritten > len(pids) { return nil, errors.Errorf("EnumProcesses returned an invalid bytesWritten value of %v", bytesWritten) } pids = pids[:pidsWritten] return pids, err } // Retry the EnumProcesses call with larger arrays if needed. size := 2048 var pids []uint32 for tries := 0; tries < 5; tries++ { var err error pids, err = enumProcesses(size) if err != nil { return nil, errors.Wrap(err, "EnumProcesses failed") } if len(pids) < size { break } // Increase the size the pids array and retry the enumProcesses call // because the array wasn't large enough to hold all of the processes. size *= 2 } return pids, nil } // GetDiskFreeSpaceEx retrieves information about the amount of space that is // available on a disk volume, which is the total amount of space, the total // amount of free space, and the total amount of free space available to the // user that is associated with the calling thread. // https://msdn.microsoft.com/en-us/library/windows/desktop/aa364937(v=vs.85).aspx func GetDiskFreeSpaceEx(directoryName string) (freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes uint64, err error) { directoryNamePtr, err := syscall.UTF16PtrFromString(directoryName) if err != nil { return 0, 0, 0, errors.Wrapf(err, "UTF16PtrFromString failed for directoryName=%v", directoryName) } err = _GetDiskFreeSpaceEx(directoryNamePtr, &freeBytesAvailable, &totalNumberOfBytes, &totalNumberOfFreeBytes) if err != nil { return 0, 0, 0, err } return freeBytesAvailable, totalNumberOfBytes, totalNumberOfFreeBytes, nil } // CreateToolhelp32Snapshot takes a snapshot of the specified processes, as well // as the heaps, modules, and threads used by these processes. // https://msdn.microsoft.com/en-us/library/windows/desktop/ms682489(v=vs.85).aspx func CreateToolhelp32Snapshot(flags, pid uint32) (syscall.Handle, error) { h, err := _CreateToolhelp32Snapshot(flags, pid) if err != nil { return syscall.InvalidHandle, err } if h == syscall.InvalidHandle { return syscall.InvalidHandle, syscall.GetLastError() } return h, nil } // Process32First retrieves information about the first process encountered in a // system snapshot. // https://msdn.microsoft.com/en-us/library/windows/desktop/ms684834 func Process32First(handle syscall.Handle) (ProcessEntry32, error) { processEntry32 := ProcessEntry32{size: sizeofProcessEntry32} err := _Process32First(handle, &processEntry32) if err != nil { return ProcessEntry32{}, errors.Wrap(err, "Process32First failed") } return processEntry32, nil } // Process32Next retrieves information about the next process recorded in a // system snapshot. When there are no more processes to iterate then // syscall.ERROR_NO_MORE_FILES is returned (use errors.Cause() to unwrap). // https://msdn.microsoft.com/en-us/library/windows/desktop/ms684836 func Process32Next(handle syscall.Handle) (ProcessEntry32, error) { processEntry32 := ProcessEntry32{size: sizeofProcessEntry32} err := _Process32Next(handle, &processEntry32) if err != nil { return ProcessEntry32{}, errors.Wrap(err, "Process32Next failed") } return processEntry32, nil } // UTF16SliceToStringSlice converts slice of uint16 containing a list of UTF16 // strings to a slice of strings. func UTF16SliceToStringSlice(buffer []uint16) []string { // Split the uint16 slice at null-terminators. var startIdx int var stringsUTF16 [][]uint16 for i, value := range buffer { if value == 0 { stringsUTF16 = append(stringsUTF16, buffer[startIdx:i]) startIdx = i + 1 } } // Convert the utf16 slices to strings. result := make([]string, 0, len(stringsUTF16)) for _, stringUTF16 := range stringsUTF16 { if len(stringUTF16) > 0 { result = append(result, syscall.UTF16ToString(stringUTF16)) } } return result } func GetUserProcessParams(handle syscall.Handle, pbi ProcessBasicInformation) (params RtlUserProcessParameters, err error) { const is32bitProc = unsafe.Sizeof(uintptr(0)) == 4 // Offset of params field within PEB structure. // This structure is different in 32 and 64 bit. paramsOffset := 0x20 if is32bitProc { paramsOffset = 0x10 } // Read the PEB from the target process memory pebSize := paramsOffset + 8 peb := make([]byte, pebSize) nRead, err := ReadProcessMemory(handle, pbi.PebBaseAddress, peb) if err != nil { return params, err } if nRead != uintptr(pebSize) { return params, errors.Errorf("PEB: short read (%d/%d)", nRead, pebSize) } // Get the RTL_USER_PROCESS_PARAMETERS struct pointer from the PEB paramsAddr := *(*uintptr)(unsafe.Pointer(&peb[paramsOffset])) // Read the RTL_USER_PROCESS_PARAMETERS from the target process memory paramsBuf := make([]byte, SizeOfRtlUserProcessParameters) nRead, err = ReadProcessMemory(handle, paramsAddr, paramsBuf) if err != nil { return params, err } if nRead != uintptr(SizeOfRtlUserProcessParameters) { return params, errors.Errorf("RTL_USER_PROCESS_PARAMETERS: short read (%d/%d)", nRead, SizeOfRtlUserProcessParameters) } params = *(*RtlUserProcessParameters)(unsafe.Pointer(¶msBuf[0])) return params, nil } // ReadProcessUnicodeString returns a zero-terminated UTF-16 string from another // process's memory. func ReadProcessUnicodeString(handle syscall.Handle, s *UnicodeString) ([]byte, error) { // Allocate an extra UTF-16 null character at the end in case the read string // is not terminated. extra := 2 if s.Size&1 != 0 { extra = 3 // If size is odd, need 3 nulls to terminate. } buf := make([]byte, int(s.Size)+extra) nRead, err := ReadProcessMemory(handle, s.Buffer, buf[:s.Size]) if err != nil { return nil, err } if nRead != uintptr(s.Size) { return nil, errors.Errorf("unicode string: short read: (%d/%d)", nRead, s.Size) } return buf, nil } // ByteSliceToStringSlice uses CommandLineToArgv API to split an UTF-16 command // line string into a list of parameters. func ByteSliceToStringSlice(utf16 []byte) ([]string, error) { n := len(utf16) // Discard odd byte if n&1 != 0 { n-- utf16 = utf16[:n] } if n == 0 { return nil, nil } terminated := false for i := 0; i < n && !terminated; i += 2 { terminated = utf16[i] == 0 && utf16[i+1] == 0 } if !terminated { // Append a null uint16 at the end if terminator is missing utf16 = append(utf16, 0, 0) } var numArgs int32 argsWide, err := syscall.CommandLineToArgv((*uint16)(unsafe.Pointer(&utf16[0])), &numArgs) if err != nil { return nil, err } // Free memory allocated for CommandLineToArgvW arguments. defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(argsWide))) args := make([]string, numArgs) for idx := range args { args[idx] = syscall.UTF16ToString(argsWide[idx][:]) } return args, nil } // ReadProcessMemory reads from another process memory. The Handle needs to have // the PROCESS_VM_READ right. // A zero-byte read is a no-op, no error is returned. func ReadProcessMemory(handle syscall.Handle, baseAddress uintptr, dest []byte) (numRead uintptr, err error) { n := len(dest) if n == 0 { return 0, nil } if err = _ReadProcessMemory(handle, baseAddress, uintptr(unsafe.Pointer(&dest[0])), uintptr(n), &numRead); err != nil { return 0, err } return numRead, nil } func GetTickCount64() (uptime uint64, err error) { if uptime, err = _GetTickCount64(); err != nil { return 0, err } return uptime, nil } // Windows API calls //sys _GlobalMemoryStatusEx(buffer *MemoryStatusEx) (err error) = kernel32.GlobalMemoryStatusEx //sys _GetLogicalDriveStringsW(bufferLength uint32, buffer *uint16) (length uint32, err error) = kernel32.GetLogicalDriveStringsW //sys _GetProcessMemoryInfo(handle syscall.Handle, psmemCounters *ProcessMemoryCountersEx, cb uint32) (err error) = psapi.GetProcessMemoryInfo //sys _GetProcessImageFileName(handle syscall.Handle, outImageFileName *uint16, size uint32) (length uint32, err error) = psapi.GetProcessImageFileNameW //sys _GetSystemTimes(idleTime *syscall.Filetime, kernelTime *syscall.Filetime, userTime *syscall.Filetime) (err error) = kernel32.GetSystemTimes //sys _GetDriveType(rootPathName *uint16) (dt DriveType, err error) = kernel32.GetDriveTypeW //sys _GetVolumeInformation(rootPathName *uint16, volumeName *uint16, volumeNameSize uint32, volumeSerialNumber *uint32, maximumComponentLength *uint32, fileSystemFlags *uint32, fileSystemName *uint16, fileSystemNameSize uint32) (success bool, err error) [true] = kernel32.GetVolumeInformationW //sys _EnumProcesses(processIds *uint32, sizeBytes uint32, bytesReturned *uint32) (err error) = psapi.EnumProcesses //sys _GetDiskFreeSpaceEx(directoryName *uint16, freeBytesAvailable *uint64, totalNumberOfBytes *uint64, totalNumberOfFreeBytes *uint64) (err error) = kernel32.GetDiskFreeSpaceExW //sys _Process32First(handle syscall.Handle, processEntry32 *ProcessEntry32) (err error) = kernel32.Process32FirstW //sys _Process32Next(handle syscall.Handle, processEntry32 *ProcessEntry32) (err error) = kernel32.Process32NextW //sys _CreateToolhelp32Snapshot(flags uint32, processID uint32) (handle syscall.Handle, err error) = kernel32.CreateToolhelp32Snapshot //sys _NtQuerySystemInformation(systemInformationClass uint32, systemInformation *byte, systemInformationLength uint32, returnLength *uint32) (ntstatus uint32, err error) = ntdll.NtQuerySystemInformation //sys _NtQueryInformationProcess(processHandle syscall.Handle, processInformationClass uint32, processInformation *byte, processInformationLength uint32, returnLength *uint32) (ntstatus uint32, err error) = ntdll.NtQueryInformationProcess //sys _LookupPrivilegeName(systemName string, luid *int64, buffer *uint16, size *uint32) (err error) = advapi32.LookupPrivilegeNameW //sys _LookupPrivilegeValue(systemName string, name string, luid *int64) (err error) = advapi32.LookupPrivilegeValueW //sys _AdjustTokenPrivileges(token syscall.Token, releaseAll bool, input *byte, outputSize uint32, output *byte, requiredSize *uint32) (success bool, err error) [true] = advapi32.AdjustTokenPrivileges //sys _FindFirstVolume(volumeName *uint16, size uint32) (handle syscall.Handle, err error) = kernel32.FindFirstVolumeW //sys _FindNextVolume(handle syscall.Handle, volumeName *uint16, size uint32) (err error) = kernel32.FindNextVolumeW //sys _FindVolumeClose(handle syscall.Handle) (err error) = kernel32.FindVolumeClose //sys _GetVolumePathNamesForVolumeName(volumeName string, buffer *uint16, bufferSize uint32, length *uint32) (err error) = kernel32.GetVolumePathNamesForVolumeNameW //sys _ReadProcessMemory(handle syscall.Handle, baseAddress uintptr, buffer uintptr, size uintptr, numRead *uintptr) (err error) = kernel32.ReadProcessMemory //sys _GetTickCount64() (uptime uint64, err error) = kernel32.GetTickCount64