mirror of
https://github.com/moby/moby.git
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103 lines
2.8 KiB
Go
103 lines
2.8 KiB
Go
package system
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import (
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"syscall"
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"unsafe"
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"github.com/Sirupsen/logrus"
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)
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var (
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ntuserApiset = syscall.NewLazyDLL("ext-ms-win-ntuser-window-l1-1-0")
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procGetVersionExW = modkernel32.NewProc("GetVersionExW")
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)
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// OSVersion is a wrapper for Windows version information
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// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724439(v=vs.85).aspx
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type OSVersion struct {
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Version uint32
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MajorVersion uint8
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MinorVersion uint8
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Build uint16
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}
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// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724833(v=vs.85).aspx
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type osVersionInfoEx struct {
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OSVersionInfoSize uint32
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MajorVersion uint32
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MinorVersion uint32
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BuildNumber uint32
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PlatformID uint32
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CSDVersion [128]uint16
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ServicePackMajor uint16
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ServicePackMinor uint16
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SuiteMask uint16
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ProductType byte
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Reserve byte
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}
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// GetOSVersion gets the operating system version on Windows. Note that
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// docker.exe must be manifested to get the correct version information.
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func GetOSVersion() OSVersion {
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var err error
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osv := OSVersion{}
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osv.Version, err = syscall.GetVersion()
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if err != nil {
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// GetVersion never fails.
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panic(err)
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}
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osv.MajorVersion = uint8(osv.Version & 0xFF)
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osv.MinorVersion = uint8(osv.Version >> 8 & 0xFF)
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osv.Build = uint16(osv.Version >> 16)
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return osv
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}
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// IsWindowsClient returns true if the SKU is client
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func IsWindowsClient() bool {
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osviex := &osVersionInfoEx{OSVersionInfoSize: 284}
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r1, _, err := procGetVersionExW.Call(uintptr(unsafe.Pointer(osviex)))
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if r1 == 0 {
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logrus.Warnf("GetVersionExW failed - assuming server SKU: %v", err)
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return false
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}
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const verNTWorkstation = 0x00000001
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return osviex.ProductType == verNTWorkstation
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}
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// Unmount is a platform-specific helper function to call
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// the unmount syscall. Not supported on Windows
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func Unmount(dest string) error {
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return nil
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}
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// CommandLineToArgv wraps the Windows syscall to turn a commandline into an argument array.
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func CommandLineToArgv(commandLine string) ([]string, error) {
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var argc int32
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argsPtr, err := syscall.UTF16PtrFromString(commandLine)
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if err != nil {
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return nil, err
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}
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argv, err := syscall.CommandLineToArgv(argsPtr, &argc)
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if err != nil {
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return nil, err
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}
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defer syscall.LocalFree(syscall.Handle(uintptr(unsafe.Pointer(argv))))
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newArgs := make([]string, argc)
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for i, v := range (*argv)[:argc] {
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newArgs[i] = string(syscall.UTF16ToString((*v)[:]))
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}
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return newArgs, nil
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}
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// HasWin32KSupport determines whether containers that depend on win32k can
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// run on this machine. Win32k is the driver used to implement windowing.
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func HasWin32KSupport() bool {
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// For now, check for ntuser API support on the host. In the future, a host
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// may support win32k in containers even if the host does not support ntuser
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// APIs.
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return ntuserApiset.Load() == nil
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}
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