66 lines
2.2 KiB
Go
66 lines
2.2 KiB
Go
package system // import "github.com/docker/docker/pkg/system"
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import (
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"unsafe"
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"github.com/sirupsen/logrus"
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"golang.org/x/sys/windows"
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)
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const (
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// Deprecated: use github.com/docker/pkg/idtools.SeTakeOwnershipPrivilege
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SeTakeOwnershipPrivilege = "SeTakeOwnershipPrivilege"
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)
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const (
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// Deprecated: use github.com/docker/pkg/idtools.ContainerAdministratorSidString
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ContainerAdministratorSidString = "S-1-5-93-2-1"
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// Deprecated: use github.com/docker/pkg/idtools.ContainerUserSidString
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ContainerUserSidString = "S-1-5-93-2-2"
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)
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var (
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ntuserApiset = windows.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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// https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-osversioninfoexa
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// TODO: use golang.org/x/sys/windows.OsVersionInfoEx (needs OSVersionInfoSize to be exported)
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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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// IsWindowsClient returns true if the SKU is client. It returns false on
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// Windows server, or if an error occurred when making the GetVersionExW
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// syscall.
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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.WithError(err).Warn("GetVersionExW failed - assuming server SKU")
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return false
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}
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// VER_NT_WORKSTATION, see https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-osversioninfoexa
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const verNTWorkstation = 0x00000001 // VER_NT_WORKSTATION
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return osviex.ProductType == verNTWorkstation
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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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