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go.mod github.com/Microsoft/hcsshim v0.8.16

Browse Source 
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
This commit is contained in:
Sebastiaan van Stijn
2021-03-12 17:17:51 +01:00
parent bc856372bb
commit 75b64e0f60
623 changed files with 60114 additions and 6182 deletions
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162
vendor/github.com/Microsoft/hcsshim/internal/safefile/safeopen.go generated vendored
View File

@ -11,72 +11,11 @@ import (
"unsafe"
"github.com/Microsoft/hcsshim/internal/longpath"
"github.com/Microsoft/hcsshim/internal/winapi"
winio "github.com/Microsoft/go-winio"
)
//go:generate go run $GOROOT\src\syscall\mksyscall_windows.go -output zsyscall_windows.go safeopen.go
//sys ntCreateFile(handle *uintptr, accessMask uint32, oa *objectAttributes, iosb *ioStatusBlock, allocationSize *uint64, fileAttributes uint32, shareAccess uint32, createDisposition uint32, createOptions uint32, eaBuffer *byte, eaLength uint32) (status uint32) = ntdll.NtCreateFile
//sys ntSetInformationFile(handle uintptr, iosb *ioStatusBlock, information uintptr, length uint32, class uint32) (status uint32) = ntdll.NtSetInformationFile
//sys rtlNtStatusToDosError(status uint32) (winerr error) = ntdll.RtlNtStatusToDosErrorNoTeb
//sys localAlloc(flags uint32, size int) (ptr uintptr) = kernel32.LocalAlloc
//sys localFree(ptr uintptr) = kernel32.LocalFree
type ioStatusBlock struct {
Status, Information uintptr
}
type objectAttributes struct {
Length uintptr
RootDirectory uintptr
ObjectName uintptr
Attributes uintptr
SecurityDescriptor uintptr
SecurityQoS uintptr
}
type unicodeString struct {
Length uint16
MaximumLength uint16
Buffer uintptr
}
type fileLinkInformation struct {
ReplaceIfExists bool
RootDirectory uintptr
FileNameLength uint32
FileName [1]uint16
}
type fileDispositionInformationEx struct {
Flags uintptr
}
const (
_FileLinkInformation = 11
_FileDispositionInformationEx = 64
FILE_READ_ATTRIBUTES = 0x0080
FILE_WRITE_ATTRIBUTES = 0x0100
DELETE = 0x10000
FILE_OPEN = 1
FILE_CREATE = 2
FILE_DIRECTORY_FILE = 0x00000001
FILE_SYNCHRONOUS_IO_NONALERT = 0x00000020
FILE_DELETE_ON_CLOSE = 0x00001000
FILE_OPEN_FOR_BACKUP_INTENT = 0x00004000
FILE_OPEN_REPARSE_POINT = 0x00200000
FILE_DISPOSITION_DELETE = 0x00000001
_OBJ_DONT_REPARSE = 0x1000
_STATUS_REPARSE_POINT_ENCOUNTERED = 0xC000050B
)
func OpenRoot(path string) (*os.File, error) {
longpath, err := longpath.LongAbs(path)
if err != nil {
@ -85,16 +24,24 @@ func OpenRoot(path string) (*os.File, error) {
return winio.OpenForBackup(longpath, syscall.GENERIC_READ, syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE|syscall.FILE_SHARE_DELETE, syscall.OPEN_EXISTING)
}
func ntRelativePath(path string) ([]uint16, error) {
func cleanGoStringRelativePath(path string) (string, error) {
path = filepath.Clean(path)
if strings.Contains(path, ":") {
// Since alternate data streams must follow the file they
// are attached to, finding one here (out of order) is invalid.
return nil, errors.New("path contains invalid character `:`")
return "", errors.New("path contains invalid character `:`")
}
fspath := filepath.FromSlash(path)
if len(fspath) > 0 && fspath[0] == '\\' {
return nil, errors.New("expected relative path")
return "", errors.New("expected relative path")
}
return fspath, nil
}
func ntRelativePath(path string) ([]uint16, error) {
fspath, err := cleanGoStringRelativePath(path)
if err != nil {
return nil, err
}
path16 := utf16.Encode(([]rune)(fspath))
@ -110,11 +57,11 @@ func ntRelativePath(path string) ([]uint16, error) {
func openRelativeInternal(path string, root *os.File, accessMask uint32, shareFlags uint32, createDisposition uint32, flags uint32) (*os.File, error) {
var (
h uintptr
iosb ioStatusBlock
oa objectAttributes
iosb winapi.IOStatusBlock
oa winapi.ObjectAttributes
)
path16, err := ntRelativePath(path)
cleanRelativePath, err := cleanGoStringRelativePath(path)
if err != nil {
return nil, err
}
@ -123,20 +70,16 @@ func openRelativeInternal(path string, root *os.File, accessMask uint32, shareFl
return nil, errors.New("missing root directory")
}
upathBuffer := localAlloc(0, int(unsafe.Sizeof(unicodeString{}))+len(path16)*2)
defer localFree(upathBuffer)
upath := (*unicodeString)(unsafe.Pointer(upathBuffer))
upath.Length = uint16(len(path16) * 2)
upath.MaximumLength = upath.Length
upath.Buffer = upathBuffer + unsafe.Sizeof(*upath)
copy((*[32768]uint16)(unsafe.Pointer(upath.Buffer))[:], path16)
pathUnicode, err := winapi.NewUnicodeString(cleanRelativePath)
if err != nil {
return nil, err
}
oa.Length = unsafe.Sizeof(oa)
oa.ObjectName = upathBuffer
oa.ObjectName = pathUnicode
oa.RootDirectory = uintptr(root.Fd())
oa.Attributes = _OBJ_DONT_REPARSE
status := ntCreateFile(
oa.Attributes = winapi.OBJ_DONT_REPARSE
status := winapi.NtCreateFile(
&h,
accessMask|syscall.SYNCHRONIZE,
&oa,
@ -145,12 +88,12 @@ func openRelativeInternal(path string, root *os.File, accessMask uint32, shareFl
0,
shareFlags,
createDisposition,
FILE_OPEN_FOR_BACKUP_INTENT|FILE_SYNCHRONOUS_IO_NONALERT|flags,
winapi.FILE_OPEN_FOR_BACKUP_INTENT|winapi.FILE_SYNCHRONOUS_IO_NONALERT|flags,
nil,
0,
)
if status != 0 {
return nil, rtlNtStatusToDosError(status)
return nil, winapi.RtlNtStatusToDosError(status)
}
fullPath, err := longpath.LongAbs(filepath.Join(root.Name(), path))
@ -182,7 +125,7 @@ func LinkRelative(oldname string, oldroot *os.File, newname string, newroot *os.
oldroot,
syscall.FILE_WRITE_ATTRIBUTES,
syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE|syscall.FILE_SHARE_DELETE,
FILE_OPEN,
winapi.FILE_OPEN,
0,
)
if err != nil {
@ -199,8 +142,8 @@ func LinkRelative(oldname string, oldroot *os.File, newname string, newroot *os.
newroot,
syscall.GENERIC_READ,
syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE|syscall.FILE_SHARE_DELETE,
FILE_OPEN,
FILE_DIRECTORY_FILE)
winapi.FILE_OPEN,
winapi.FILE_DIRECTORY_FILE)
if err != nil {
return &os.LinkError{Op: "link", Old: oldf.Name(), New: filepath.Join(newroot.Name(), newname), Err: err}
}
@ -211,7 +154,7 @@ func LinkRelative(oldname string, oldroot *os.File, newname string, newroot *os.
return err
}
if (fi.FileAttributes & syscall.FILE_ATTRIBUTE_REPARSE_POINT) != 0 {
return &os.LinkError{Op: "link", Old: oldf.Name(), New: filepath.Join(newroot.Name(), newname), Err: rtlNtStatusToDosError(_STATUS_REPARSE_POINT_ENCOUNTERED)}
return &os.LinkError{Op: "link", Old: oldf.Name(), New: filepath.Join(newroot.Name(), newname), Err: winapi.RtlNtStatusToDosError(winapi.STATUS_REPARSE_POINT_ENCOUNTERED)}
}
} else {
@ -227,24 +170,25 @@ func LinkRelative(oldname string, oldroot *os.File, newname string, newroot *os.
return err
}
size := int(unsafe.Offsetof(fileLinkInformation{}.FileName)) + len(newbase16)*2
linkinfoBuffer := localAlloc(0, size)
defer localFree(linkinfoBuffer)
linkinfo := (*fileLinkInformation)(unsafe.Pointer(linkinfoBuffer))
size := int(unsafe.Offsetof(winapi.FileLinkInformation{}.FileName)) + len(newbase16)*2
linkinfoBuffer := winapi.LocalAlloc(0, size)
defer winapi.LocalFree(linkinfoBuffer)
linkinfo := (*winapi.FileLinkInformation)(unsafe.Pointer(linkinfoBuffer))
linkinfo.RootDirectory = parent.Fd()
linkinfo.FileNameLength = uint32(len(newbase16) * 2)
copy((*[32768]uint16)(unsafe.Pointer(&linkinfo.FileName[0]))[:], newbase16)
copy(winapi.Uint16BufferToSlice(&linkinfo.FileName[0], len(newbase16)), newbase16)
var iosb ioStatusBlock
status := ntSetInformationFile(
var iosb winapi.IOStatusBlock
status := winapi.NtSetInformationFile(
oldf.Fd(),
&iosb,
linkinfoBuffer,
uint32(size),
_FileLinkInformation,
winapi.FileLinkInformationClass,
)
if status != 0 {
return &os.LinkError{Op: "link", Old: oldf.Name(), New: filepath.Join(parent.Name(), newbase), Err: rtlNtStatusToDosError(status)}
return &os.LinkError{Op: "link", Old: oldf.Name(), New: filepath.Join(parent.Name(), newbase), Err: winapi.RtlNtStatusToDosError(status)}
}
return nil
@ -252,17 +196,17 @@ func LinkRelative(oldname string, oldroot *os.File, newname string, newroot *os.
// deleteOnClose marks a file to be deleted when the handle is closed.
func deleteOnClose(f *os.File) error {
disposition := fileDispositionInformationEx{Flags: FILE_DISPOSITION_DELETE}
var iosb ioStatusBlock
status := ntSetInformationFile(
disposition := winapi.FileDispositionInformationEx{Flags: winapi.FILE_DISPOSITION_DELETE}
var iosb winapi.IOStatusBlock
status := winapi.NtSetInformationFile(
f.Fd(),
&iosb,
uintptr(unsafe.Pointer(&disposition)),
uint32(unsafe.Sizeof(disposition)),
_FileDispositionInformationEx,
winapi.FileDispositionInformationExClass,
)
if status != 0 {
return rtlNtStatusToDosError(status)
return winapi.RtlNtStatusToDosError(status)
}
return nil
}
@ -291,16 +235,16 @@ func RemoveRelative(path string, root *os.File) error {
f, err := openRelativeInternal(
path,
root,
FILE_READ_ATTRIBUTES|FILE_WRITE_ATTRIBUTES|DELETE,
winapi.FILE_READ_ATTRIBUTES|winapi.FILE_WRITE_ATTRIBUTES|winapi.DELETE,
syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE|syscall.FILE_SHARE_DELETE,
FILE_OPEN,
FILE_OPEN_REPARSE_POINT)
winapi.FILE_OPEN,
winapi.FILE_OPEN_REPARSE_POINT)
if err == nil {
defer f.Close()
err = deleteOnClose(f)
if err == syscall.ERROR_ACCESS_DENIED {
// Maybe the file is marked readonly. Clear the bit and retry.
clearReadOnly(f)
_ = clearReadOnly(f)
err = deleteOnClose(f)
}
}
@ -385,8 +329,8 @@ func MkdirRelative(path string, root *os.File) error {
root,
0,
syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE|syscall.FILE_SHARE_DELETE,
FILE_CREATE,
FILE_DIRECTORY_FILE)
winapi.FILE_CREATE,
winapi.FILE_DIRECTORY_FILE)
if err == nil {
f.Close()
} else {
@ -401,10 +345,10 @@ func LstatRelative(path string, root *os.File) (os.FileInfo, error) {
f, err := openRelativeInternal(
path,
root,
FILE_READ_ATTRIBUTES,
winapi.FILE_READ_ATTRIBUTES,
syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE|syscall.FILE_SHARE_DELETE,
FILE_OPEN,
FILE_OPEN_REPARSE_POINT)
winapi.FILE_OPEN,
winapi.FILE_OPEN_REPARSE_POINT)
if err != nil {
return nil, &os.PathError{Op: "stat", Path: filepath.Join(root.Name(), path), Err: err}
}
@ -421,7 +365,7 @@ func EnsureNotReparsePointRelative(path string, root *os.File) error {
root,
0,
syscall.FILE_SHARE_READ|syscall.FILE_SHARE_WRITE|syscall.FILE_SHARE_DELETE,
FILE_OPEN,
winapi.FILE_OPEN,
0)
if err != nil {
return err

79
vendor/github.com/Microsoft/hcsshim/internal/safefile/zsyscall_windows.go generated vendored
View File

@ -1,79 +0,0 @@
// Code generated by 'go generate'; DO NOT EDIT.
package safefile
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 (
modntdll = windows.NewLazySystemDLL("ntdll.dll")
modkernel32 = windows.NewLazySystemDLL("kernel32.dll")
procNtCreateFile = modntdll.NewProc("NtCreateFile")
procNtSetInformationFile = modntdll.NewProc("NtSetInformationFile")
procRtlNtStatusToDosErrorNoTeb = modntdll.NewProc("RtlNtStatusToDosErrorNoTeb")
procLocalAlloc = modkernel32.NewProc("LocalAlloc")
procLocalFree = modkernel32.NewProc("LocalFree")
)
func ntCreateFile(handle *uintptr, accessMask uint32, oa *objectAttributes, iosb *ioStatusBlock, allocationSize *uint64, fileAttributes uint32, shareAccess uint32, createDisposition uint32, createOptions uint32, eaBuffer *byte, eaLength uint32) (status uint32) {
r0, _, _ := syscall.Syscall12(procNtCreateFile.Addr(), 11, uintptr(unsafe.Pointer(handle)), uintptr(accessMask), uintptr(unsafe.Pointer(oa)), uintptr(unsafe.Pointer(iosb)), uintptr(unsafe.Pointer(allocationSize)), uintptr(fileAttributes), uintptr(shareAccess), uintptr(createDisposition), uintptr(createOptions), uintptr(unsafe.Pointer(eaBuffer)), uintptr(eaLength), 0)
status = uint32(r0)
return
}
func ntSetInformationFile(handle uintptr, iosb *ioStatusBlock, information uintptr, length uint32, class uint32) (status uint32) {
r0, _, _ := syscall.Syscall6(procNtSetInformationFile.Addr(), 5, uintptr(handle), uintptr(unsafe.Pointer(iosb)), uintptr(information), uintptr(length), uintptr(class), 0)
status = uint32(r0)
return
}
func rtlNtStatusToDosError(status uint32) (winerr error) {
r0, _, _ := syscall.Syscall(procRtlNtStatusToDosErrorNoTeb.Addr(), 1, uintptr(status), 0, 0)
if r0 != 0 {
winerr = syscall.Errno(r0)
}
return
}
func localAlloc(flags uint32, size int) (ptr uintptr) {
r0, _, _ := syscall.Syscall(procLocalAlloc.Addr(), 2, uintptr(flags), uintptr(size), 0)
ptr = uintptr(r0)
return
}
func localFree(ptr uintptr) {
syscall.Syscall(procLocalFree.Addr(), 1, uintptr(ptr), 0, 0)
return
}