Update vendor

Signed-off-by: Lantao Liu <lantaol@google.com>
This commit is contained in:
Lantao Liu
2019-09-01 00:58:32 -07:00
parent 50c73e6dc5
commit 86de625ece
18 changed files with 3296 additions and 0 deletions

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package fs
import (
"errors"
"path/filepath"
"syscall"
"unsafe"
"golang.org/x/sys/windows"
)
var (
// ErrInvalidPath is returned when the location of a file path doesn't begin with a driver letter.
ErrInvalidPath = errors.New("the path provided to GetFileSystemType must start with a drive letter")
)
// GetFileSystemType obtains the type of a file system through GetVolumeInformation.
// https://msdn.microsoft.com/en-us/library/windows/desktop/aa364993(v=vs.85).aspx
func GetFileSystemType(path string) (fsType string, hr error) {
drive := filepath.VolumeName(path)
if len(drive) != 2 {
return "", ErrInvalidPath
}
var (
modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
procGetVolumeInformation = modkernel32.NewProc("GetVolumeInformationW")
buf = make([]uint16, 255)
size = windows.MAX_PATH + 1
)
drive += `\`
n := uintptr(unsafe.Pointer(nil))
r0, _, _ := syscall.Syscall9(procGetVolumeInformation.Addr(), 8, uintptr(unsafe.Pointer(windows.StringToUTF16Ptr(drive))), n, n, n, n, n, uintptr(unsafe.Pointer(&buf[0])), uintptr(size), 0)
if int32(r0) < 0 {
hr = syscall.Errno(win32FromHresult(r0))
}
fsType = windows.UTF16ToString(buf)
return
}
// win32FromHresult is a helper function to get the win32 error code from an HRESULT.
func win32FromHresult(hr uintptr) uintptr {
if hr&0x1fff0000 == 0x00070000 {
return hr & 0xffff
}
return hr
}

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package security
import (
"os"
"syscall"
"unsafe"
"github.com/pkg/errors"
)
type (
accessMask uint32
accessMode uint32
desiredAccess uint32
inheritMode uint32
objectType uint32
shareMode uint32
securityInformation uint32
trusteeForm uint32
trusteeType uint32
explicitAccess struct {
accessPermissions accessMask
accessMode accessMode
inheritance inheritMode
trustee trustee
}
trustee struct {
multipleTrustee *trustee
multipleTrusteeOperation int32
trusteeForm trusteeForm
trusteeType trusteeType
name uintptr
}
)
const (
accessMaskDesiredPermission accessMask = 1 << 31 // GENERIC_READ
accessModeGrant accessMode = 1
desiredAccessReadControl desiredAccess = 0x20000
desiredAccessWriteDac desiredAccess = 0x40000
gvmga = "GrantVmGroupAccess:"
inheritModeNoInheritance inheritMode = 0x0
inheritModeSubContainersAndObjectsInherit inheritMode = 0x3
objectTypeFileObject objectType = 0x1
securityInformationDACL securityInformation = 0x4
shareModeRead shareMode = 0x1
shareModeWrite shareMode = 0x2
sidVmGroup = "S-1-5-83-0"
trusteeFormIsSid trusteeForm = 0
trusteeTypeWellKnownGroup trusteeType = 5
)
// GrantVMGroupAccess sets the DACL for a specified file or directory to
// include Grant ACE entries for the VM Group SID. This is a golang re-
// implementation of the same function in vmcompute, just not exported in
// RS5. Which kind of sucks. Sucks a lot :/
func GrantVmGroupAccess(name string) error {
// Stat (to determine if `name` is a directory).
s, err := os.Stat(name)
if err != nil {
return errors.Wrapf(err, "%s os.Stat %s", gvmga, name)
}
// Get a handle to the file/directory. Must defer Close on success.
fd, err := createFile(name, s.IsDir())
if err != nil {
return err // Already wrapped
}
defer syscall.CloseHandle(fd)
// Get the current DACL and Security Descriptor. Must defer LocalFree on success.
ot := objectTypeFileObject
si := securityInformationDACL
sd := uintptr(0)
origDACL := uintptr(0)
if err := getSecurityInfo(fd, uint32(ot), uint32(si), nil, nil, &origDACL, nil, &sd); err != nil {
return errors.Wrapf(err, "%s GetSecurityInfo %s", gvmga, name)
}
defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(sd)))
// Generate a new DACL which is the current DACL with the required ACEs added.
// Must defer LocalFree on success.
newDACL, err := generateDACLWithAcesAdded(name, s.IsDir(), origDACL)
if err != nil {
return err // Already wrapped
}
defer syscall.LocalFree((syscall.Handle)(unsafe.Pointer(newDACL)))
// And finally use SetSecurityInfo to apply the updated DACL.
if err := setSecurityInfo(fd, uint32(ot), uint32(si), uintptr(0), uintptr(0), newDACL, uintptr(0)); err != nil {
return errors.Wrapf(err, "%s SetSecurityInfo %s", gvmga, name)
}
return nil
}
// createFile is a helper function to call [Nt]CreateFile to get a handle to
// the file or directory.
func createFile(name string, isDir bool) (syscall.Handle, error) {
namep := syscall.StringToUTF16(name)
da := uint32(desiredAccessReadControl | desiredAccessWriteDac)
sm := uint32(shareModeRead | shareModeWrite)
fa := uint32(syscall.FILE_ATTRIBUTE_NORMAL)
if isDir {
fa = uint32(fa | syscall.FILE_FLAG_BACKUP_SEMANTICS)
}
fd, err := syscall.CreateFile(&namep[0], da, sm, nil, syscall.OPEN_EXISTING, fa, 0)
if err != nil {
return 0, errors.Wrapf(err, "%s syscall.CreateFile %s", gvmga, name)
}
return fd, nil
}
// generateDACLWithAcesAdded generates a new DACL with the two needed ACEs added.
// The caller is responsible for LocalFree of the returned DACL on success.
func generateDACLWithAcesAdded(name string, isDir bool, origDACL uintptr) (uintptr, error) {
// Generate pointers to the SIDs based on the string SIDs
sid, err := syscall.StringToSid(sidVmGroup)
if err != nil {
return 0, errors.Wrapf(err, "%s syscall.StringToSid %s %s", gvmga, name, sidVmGroup)
}
inheritance := inheritModeNoInheritance
if isDir {
inheritance = inheritModeSubContainersAndObjectsInherit
}
eaArray := []explicitAccess{
explicitAccess{
accessPermissions: accessMaskDesiredPermission,
accessMode: accessModeGrant,
inheritance: inheritance,
trustee: trustee{
trusteeForm: trusteeFormIsSid,
trusteeType: trusteeTypeWellKnownGroup,
name: uintptr(unsafe.Pointer(sid)),
},
},
}
modifiedDACL := uintptr(0)
if err := setEntriesInAcl(uintptr(uint32(1)), uintptr(unsafe.Pointer(&eaArray[0])), origDACL, &modifiedDACL); err != nil {
return 0, errors.Wrapf(err, "%s SetEntriesInAcl %s", gvmga, name)
}
return modifiedDACL, nil
}

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package security
//go:generate go run mksyscall_windows.go -output zsyscall_windows.go syscall_windows.go
//sys getSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, ppsidOwner **uintptr, ppsidGroup **uintptr, ppDacl *uintptr, ppSacl *uintptr, ppSecurityDescriptor *uintptr) (err error) [failretval!=0] = advapi32.GetSecurityInfo
//sys setSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, psidOwner uintptr, psidGroup uintptr, pDacl uintptr, pSacl uintptr) (err error) [failretval!=0] = advapi32.SetSecurityInfo
//sys setEntriesInAcl(count uintptr, pListOfEEs uintptr, oldAcl uintptr, newAcl *uintptr) (err error) [failretval!=0] = advapi32.SetEntriesInAclW

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// Code generated mksyscall_windows.exe DO NOT EDIT
package security
import (
"syscall"
"unsafe"
"golang.org/x/sys/windows"
)
var _ unsafe.Pointer
// Do the interface allocations only once for common
// Errno values.
const (
errnoERROR_IO_PENDING = 997
)
var (
errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
)
// errnoErr returns common boxed Errno values, to prevent
// allocations at runtime.
func errnoErr(e syscall.Errno) error {
switch e {
case 0:
return nil
case errnoERROR_IO_PENDING:
return errERROR_IO_PENDING
}
// TODO: add more here, after collecting data on the common
// error values see on Windows. (perhaps when running
// all.bat?)
return e
}
var (
modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
procGetSecurityInfo = modadvapi32.NewProc("GetSecurityInfo")
procSetSecurityInfo = modadvapi32.NewProc("SetSecurityInfo")
procSetEntriesInAclW = modadvapi32.NewProc("SetEntriesInAclW")
)
func getSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, ppsidOwner **uintptr, ppsidGroup **uintptr, ppDacl *uintptr, ppSacl *uintptr, ppSecurityDescriptor *uintptr) (err error) {
r1, _, e1 := syscall.Syscall9(procGetSecurityInfo.Addr(), 8, uintptr(handle), uintptr(objectType), uintptr(si), uintptr(unsafe.Pointer(ppsidOwner)), uintptr(unsafe.Pointer(ppsidGroup)), uintptr(unsafe.Pointer(ppDacl)), uintptr(unsafe.Pointer(ppSacl)), uintptr(unsafe.Pointer(ppSecurityDescriptor)), 0)
if r1 != 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func setSecurityInfo(handle syscall.Handle, objectType uint32, si uint32, psidOwner uintptr, psidGroup uintptr, pDacl uintptr, pSacl uintptr) (err error) {
r1, _, e1 := syscall.Syscall9(procSetSecurityInfo.Addr(), 7, uintptr(handle), uintptr(objectType), uintptr(si), uintptr(psidOwner), uintptr(psidGroup), uintptr(pDacl), uintptr(pSacl), 0, 0)
if r1 != 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func setEntriesInAcl(count uintptr, pListOfEEs uintptr, oldAcl uintptr, newAcl *uintptr) (err error) {
r1, _, e1 := syscall.Syscall6(procSetEntriesInAclW.Addr(), 4, uintptr(count), uintptr(pListOfEEs), uintptr(oldAcl), uintptr(unsafe.Pointer(newAcl)), 0, 0)
if r1 != 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}

151
vendor/github.com/Microsoft/go-winio/vhd/vhd.go generated vendored Normal file
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// +build windows
package vhd
import "syscall"
//go:generate go run mksyscall_windows.go -output zvhd.go vhd.go
//sys createVirtualDisk(virtualStorageType *virtualStorageType, path string, virtualDiskAccessMask uint32, securityDescriptor *uintptr, flags uint32, providerSpecificFlags uint32, parameters *createVirtualDiskParameters, o *syscall.Overlapped, handle *syscall.Handle) (err error) [failretval != 0] = VirtDisk.CreateVirtualDisk
//sys openVirtualDisk(virtualStorageType *virtualStorageType, path string, virtualDiskAccessMask uint32, flags uint32, parameters *openVirtualDiskParameters, handle *syscall.Handle) (err error) [failretval != 0] = VirtDisk.OpenVirtualDisk
//sys detachVirtualDisk(handle syscall.Handle, flags uint32, providerSpecificFlags uint32) (err error) [failretval != 0] = VirtDisk.DetachVirtualDisk
type virtualStorageType struct {
DeviceID uint32
VendorID [16]byte
}
type (
createVirtualDiskFlag uint32
VirtualDiskAccessMask uint32
VirtualDiskFlag uint32
)
const (
// Flags for creating a VHD (not exported)
createVirtualDiskFlagNone createVirtualDiskFlag = 0
createVirtualDiskFlagFullPhysicalAllocation createVirtualDiskFlag = 1
createVirtualDiskFlagPreventWritesToSourceDisk createVirtualDiskFlag = 2
createVirtualDiskFlagDoNotCopyMetadataFromParent createVirtualDiskFlag = 4
// Access Mask for opening a VHD
VirtualDiskAccessNone VirtualDiskAccessMask = 0
VirtualDiskAccessAttachRO VirtualDiskAccessMask = 65536
VirtualDiskAccessAttachRW VirtualDiskAccessMask = 131072
VirtualDiskAccessDetach VirtualDiskAccessMask = 262144
VirtualDiskAccessGetInfo VirtualDiskAccessMask = 524288
VirtualDiskAccessCreate VirtualDiskAccessMask = 1048576
VirtualDiskAccessMetaOps VirtualDiskAccessMask = 2097152
VirtualDiskAccessRead VirtualDiskAccessMask = 851968
VirtualDiskAccessAll VirtualDiskAccessMask = 4128768
VirtualDiskAccessWritable VirtualDiskAccessMask = 3276800
// Flags for opening a VHD
OpenVirtualDiskFlagNone VirtualDiskFlag = 0
OpenVirtualDiskFlagNoParents VirtualDiskFlag = 0x1
OpenVirtualDiskFlagBlankFile VirtualDiskFlag = 0x2
OpenVirtualDiskFlagBootDrive VirtualDiskFlag = 0x4
OpenVirtualDiskFlagCachedIO VirtualDiskFlag = 0x8
OpenVirtualDiskFlagCustomDiffChain VirtualDiskFlag = 0x10
OpenVirtualDiskFlagParentCachedIO VirtualDiskFlag = 0x20
OpenVirtualDiskFlagVhdSetFileOnly VirtualDiskFlag = 0x40
OpenVirtualDiskFlagIgnoreRelativeParentLocator VirtualDiskFlag = 0x80
OpenVirtualDiskFlagNoWriteHardening VirtualDiskFlag = 0x100
)
type createVersion2 struct {
UniqueID [16]byte // GUID
MaximumSize uint64
BlockSizeInBytes uint32
SectorSizeInBytes uint32
ParentPath *uint16 // string
SourcePath *uint16 // string
OpenFlags uint32
ParentVirtualStorageType virtualStorageType
SourceVirtualStorageType virtualStorageType
ResiliencyGUID [16]byte // GUID
}
type createVirtualDiskParameters struct {
Version uint32 // Must always be set to 2
Version2 createVersion2
}
type openVersion2 struct {
GetInfoOnly int32 // bool but 4-byte aligned
ReadOnly int32 // bool but 4-byte aligned
ResiliencyGUID [16]byte // GUID
}
type openVirtualDiskParameters struct {
Version uint32 // Must always be set to 2
Version2 openVersion2
}
// CreateVhdx will create a simple vhdx file at the given path using default values.
func CreateVhdx(path string, maxSizeInGb, blockSizeInMb uint32) error {
var (
defaultType virtualStorageType
handle syscall.Handle
)
parameters := createVirtualDiskParameters{
Version: 2,
Version2: createVersion2{
MaximumSize: uint64(maxSizeInGb) * 1024 * 1024 * 1024,
BlockSizeInBytes: blockSizeInMb * 1024 * 1024,
},
}
if err := createVirtualDisk(
&defaultType,
path,
uint32(VirtualDiskAccessNone),
nil,
uint32(createVirtualDiskFlagNone),
0,
&parameters,
nil,
&handle); err != nil {
return err
}
if err := syscall.CloseHandle(handle); err != nil {
return err
}
return nil
}
// DetachVhd detaches a mounted container layer vhd found at `path`.
func DetachVhd(path string) error {
handle, err := OpenVirtualDisk(
path,
VirtualDiskAccessNone,
OpenVirtualDiskFlagCachedIO|OpenVirtualDiskFlagIgnoreRelativeParentLocator)
if err != nil {
return err
}
defer syscall.CloseHandle(handle)
return detachVirtualDisk(handle, 0, 0)
}
// OpenVirtualDisk obtains a handle to a VHD opened with supplied access mask and flags.
func OpenVirtualDisk(path string, accessMask VirtualDiskAccessMask, flag VirtualDiskFlag) (syscall.Handle, error) {
var (
defaultType virtualStorageType
handle syscall.Handle
)
parameters := openVirtualDiskParameters{Version: 2}
if err := openVirtualDisk(
&defaultType,
path,
uint32(accessMask),
uint32(flag),
&parameters,
&handle); err != nil {
return 0, err
}
return handle, nil
}

99
vendor/github.com/Microsoft/go-winio/vhd/zvhd.go generated vendored Normal file
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// MACHINE GENERATED BY 'go generate' COMMAND; DO NOT EDIT
package vhd
import (
"syscall"
"unsafe"
"golang.org/x/sys/windows"
)
var _ unsafe.Pointer
// Do the interface allocations only once for common
// Errno values.
const (
errnoERROR_IO_PENDING = 997
)
var (
errERROR_IO_PENDING error = syscall.Errno(errnoERROR_IO_PENDING)
)
// errnoErr returns common boxed Errno values, to prevent
// allocations at runtime.
func errnoErr(e syscall.Errno) error {
switch e {
case 0:
return nil
case errnoERROR_IO_PENDING:
return errERROR_IO_PENDING
}
// TODO: add more here, after collecting data on the common
// error values see on Windows. (perhaps when running
// all.bat?)
return e
}
var (
modVirtDisk = windows.NewLazySystemDLL("VirtDisk.dll")
procCreateVirtualDisk = modVirtDisk.NewProc("CreateVirtualDisk")
procOpenVirtualDisk = modVirtDisk.NewProc("OpenVirtualDisk")
procDetachVirtualDisk = modVirtDisk.NewProc("DetachVirtualDisk")
)
func createVirtualDisk(virtualStorageType *virtualStorageType, path string, virtualDiskAccessMask uint32, securityDescriptor *uintptr, flags uint32, providerSpecificFlags uint32, parameters *createVirtualDiskParameters, o *syscall.Overlapped, handle *syscall.Handle) (err error) {
var _p0 *uint16
_p0, err = syscall.UTF16PtrFromString(path)
if err != nil {
return
}
return _createVirtualDisk(virtualStorageType, _p0, virtualDiskAccessMask, securityDescriptor, flags, providerSpecificFlags, parameters, o, handle)
}
func _createVirtualDisk(virtualStorageType *virtualStorageType, path *uint16, virtualDiskAccessMask uint32, securityDescriptor *uintptr, flags uint32, providerSpecificFlags uint32, parameters *createVirtualDiskParameters, o *syscall.Overlapped, handle *syscall.Handle) (err error) {
r1, _, e1 := syscall.Syscall9(procCreateVirtualDisk.Addr(), 9, uintptr(unsafe.Pointer(virtualStorageType)), uintptr(unsafe.Pointer(path)), uintptr(virtualDiskAccessMask), uintptr(unsafe.Pointer(securityDescriptor)), uintptr(flags), uintptr(providerSpecificFlags), uintptr(unsafe.Pointer(parameters)), uintptr(unsafe.Pointer(o)), uintptr(unsafe.Pointer(handle)))
if r1 != 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func openVirtualDisk(virtualStorageType *virtualStorageType, path string, virtualDiskAccessMask uint32, flags uint32, parameters *openVirtualDiskParameters, handle *syscall.Handle) (err error) {
var _p0 *uint16
_p0, err = syscall.UTF16PtrFromString(path)
if err != nil {
return
}
return _openVirtualDisk(virtualStorageType, _p0, virtualDiskAccessMask, flags, parameters, handle)
}
func _openVirtualDisk(virtualStorageType *virtualStorageType, path *uint16, virtualDiskAccessMask uint32, flags uint32, parameters *openVirtualDiskParameters, handle *syscall.Handle) (err error) {
r1, _, e1 := syscall.Syscall6(procOpenVirtualDisk.Addr(), 6, uintptr(unsafe.Pointer(virtualStorageType)), uintptr(unsafe.Pointer(path)), uintptr(virtualDiskAccessMask), uintptr(flags), uintptr(unsafe.Pointer(parameters)), uintptr(unsafe.Pointer(handle)))
if r1 != 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}
func detachVirtualDisk(handle syscall.Handle, flags uint32, providerSpecificFlags uint32) (err error) {
r1, _, e1 := syscall.Syscall(procDetachVirtualDisk.Addr(), 3, uintptr(handle), uintptr(flags), uintptr(providerSpecificFlags))
if r1 != 0 {
if e1 != 0 {
err = errnoErr(e1)
} else {
err = syscall.EINVAL
}
}
return
}