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authorOpenShift Merge Robot <openshift-merge-robot@users.noreply.github.com>2020-11-17 12:36:19 +0100
committerGitHub <noreply@github.com>2020-11-17 12:36:19 +0100
commitc92bdf550c130cfe30fb545dc7bcf09f842444b4 (patch)
tree6c0ae421a4ebf144eb8a098a0145e4d309fb182f /vendor/github.com/Microsoft/go-winio/backuptar/tar.go
parentd7a547952cc0ddc7bcc017ec58e0832db7343c6d (diff)
parentb78a90cbdea05ea92e080f50f9f8fc8fa3cd4d68 (diff)
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Merge pull request #8359 from TomSweeneyRedHat/dev/tsweeney/buildahv1.18.0
Bump Buildah to v1.18.0, c/storage to v1.24.0
Diffstat (limited to 'vendor/github.com/Microsoft/go-winio/backuptar/tar.go')
-rw-r--r--vendor/github.com/Microsoft/go-winio/backuptar/tar.go60
1 files changed, 36 insertions, 24 deletions
diff --git a/vendor/github.com/Microsoft/go-winio/backuptar/tar.go b/vendor/github.com/Microsoft/go-winio/backuptar/tar.go
index d6566dbf0..088a43c68 100644
--- a/vendor/github.com/Microsoft/go-winio/backuptar/tar.go
+++ b/vendor/github.com/Microsoft/go-winio/backuptar/tar.go
@@ -3,6 +3,7 @@
package backuptar
import (
+ "archive/tar"
"encoding/base64"
"errors"
"fmt"
@@ -15,7 +16,6 @@ import (
"time"
"github.com/Microsoft/go-winio"
- "github.com/Microsoft/go-winio/archive/tar" // until archive/tar supports pax extensions in its interface
)
const (
@@ -32,11 +32,13 @@ const (
)
const (
- hdrFileAttributes = "fileattr"
- hdrSecurityDescriptor = "sd"
- hdrRawSecurityDescriptor = "rawsd"
- hdrMountPoint = "mountpoint"
- hdrEaPrefix = "xattr."
+ hdrFileAttributes = "MSWINDOWS.fileattr"
+ hdrSecurityDescriptor = "MSWINDOWS.sd"
+ hdrRawSecurityDescriptor = "MSWINDOWS.rawsd"
+ hdrMountPoint = "MSWINDOWS.mountpoint"
+ hdrEaPrefix = "MSWINDOWS.xattr."
+
+ hdrCreationTime = "LIBARCHIVE.creationtime"
)
func writeZeroes(w io.Writer, count int64) error {
@@ -86,16 +88,17 @@ func copySparse(t *tar.Writer, br *winio.BackupStreamReader) error {
// BasicInfoHeader creates a tar header from basic file information.
func BasicInfoHeader(name string, size int64, fileInfo *winio.FileBasicInfo) *tar.Header {
hdr := &tar.Header{
- Name: filepath.ToSlash(name),
- Size: size,
- Typeflag: tar.TypeReg,
- ModTime: time.Unix(0, fileInfo.LastWriteTime.Nanoseconds()),
- ChangeTime: time.Unix(0, fileInfo.ChangeTime.Nanoseconds()),
- AccessTime: time.Unix(0, fileInfo.LastAccessTime.Nanoseconds()),
- CreationTime: time.Unix(0, fileInfo.CreationTime.Nanoseconds()),
- Winheaders: make(map[string]string),
+ Format: tar.FormatPAX,
+ Name: filepath.ToSlash(name),
+ Size: size,
+ Typeflag: tar.TypeReg,
+ ModTime: time.Unix(0, fileInfo.LastWriteTime.Nanoseconds()),
+ ChangeTime: time.Unix(0, fileInfo.ChangeTime.Nanoseconds()),
+ AccessTime: time.Unix(0, fileInfo.LastAccessTime.Nanoseconds()),
+ PAXRecords: make(map[string]string),
}
- hdr.Winheaders[hdrFileAttributes] = fmt.Sprintf("%d", fileInfo.FileAttributes)
+ hdr.PAXRecords[hdrFileAttributes] = fmt.Sprintf("%d", fileInfo.FileAttributes)
+ hdr.PAXRecords[hdrCreationTime] = formatPAXTime(time.Unix(0, fileInfo.CreationTime.Nanoseconds()))
if (fileInfo.FileAttributes & syscall.FILE_ATTRIBUTE_DIRECTORY) != 0 {
hdr.Mode |= c_ISDIR
@@ -155,7 +158,7 @@ func WriteTarFileFromBackupStream(t *tar.Writer, r io.Reader, name string, size
if err != nil {
return err
}
- hdr.Winheaders[hdrRawSecurityDescriptor] = base64.StdEncoding.EncodeToString(sd)
+ hdr.PAXRecords[hdrRawSecurityDescriptor] = base64.StdEncoding.EncodeToString(sd)
case winio.BackupReparseData:
hdr.Mode |= c_ISLNK
@@ -166,7 +169,7 @@ func WriteTarFileFromBackupStream(t *tar.Writer, r io.Reader, name string, size
return err
}
if rp.IsMountPoint {
- hdr.Winheaders[hdrMountPoint] = "1"
+ hdr.PAXRecords[hdrMountPoint] = "1"
}
hdr.Linkname = rp.Target
@@ -183,7 +186,7 @@ func WriteTarFileFromBackupStream(t *tar.Writer, r io.Reader, name string, size
// Use base64 encoding for the binary value. Note that there
// is no way to encode the EA's flags, since their use doesn't
// make any sense for persisted EAs.
- hdr.Winheaders[hdrEaPrefix+ea.Name] = base64.StdEncoding.EncodeToString(ea.Value)
+ hdr.PAXRecords[hdrEaPrefix+ea.Name] = base64.StdEncoding.EncodeToString(ea.Value)
}
case winio.BackupAlternateData, winio.BackupLink, winio.BackupPropertyData, winio.BackupObjectId, winio.BackupTxfsData:
@@ -254,6 +257,7 @@ func WriteTarFileFromBackupStream(t *tar.Writer, r io.Reader, name string, size
}
if (bhdr.Attributes & winio.StreamSparseAttributes) == 0 {
hdr = &tar.Header{
+ Format: hdr.Format,
Name: name + altName,
Mode: hdr.Mode,
Typeflag: tar.TypeReg,
@@ -296,9 +300,10 @@ func FileInfoFromHeader(hdr *tar.Header) (name string, size int64, fileInfo *win
LastAccessTime: syscall.NsecToFiletime(hdr.AccessTime.UnixNano()),
LastWriteTime: syscall.NsecToFiletime(hdr.ModTime.UnixNano()),
ChangeTime: syscall.NsecToFiletime(hdr.ChangeTime.UnixNano()),
- CreationTime: syscall.NsecToFiletime(hdr.CreationTime.UnixNano()),
+ // Default to ModTime, we'll pull hdrCreationTime below if present
+ CreationTime: syscall.NsecToFiletime(hdr.ModTime.UnixNano()),
}
- if attrStr, ok := hdr.Winheaders[hdrFileAttributes]; ok {
+ if attrStr, ok := hdr.PAXRecords[hdrFileAttributes]; ok {
attr, err := strconv.ParseUint(attrStr, 10, 32)
if err != nil {
return "", 0, nil, err
@@ -309,6 +314,13 @@ func FileInfoFromHeader(hdr *tar.Header) (name string, size int64, fileInfo *win
fileInfo.FileAttributes |= syscall.FILE_ATTRIBUTE_DIRECTORY
}
}
+ if creationTimeStr, ok := hdr.PAXRecords[hdrCreationTime]; ok {
+ creationTime, err := parsePAXTime(creationTimeStr)
+ if err != nil {
+ return "", 0, nil, err
+ }
+ fileInfo.CreationTime = syscall.NsecToFiletime(creationTime.UnixNano())
+ }
return
}
@@ -321,13 +333,13 @@ func WriteBackupStreamFromTarFile(w io.Writer, t *tar.Reader, hdr *tar.Header) (
var err error
// Maintaining old SDDL-based behavior for backward compatibility. All new tar headers written
// by this library will have raw binary for the security descriptor.
- if sddl, ok := hdr.Winheaders[hdrSecurityDescriptor]; ok {
+ if sddl, ok := hdr.PAXRecords[hdrSecurityDescriptor]; ok {
sd, err = winio.SddlToSecurityDescriptor(sddl)
if err != nil {
return nil, err
}
}
- if sdraw, ok := hdr.Winheaders[hdrRawSecurityDescriptor]; ok {
+ if sdraw, ok := hdr.PAXRecords[hdrRawSecurityDescriptor]; ok {
sd, err = base64.StdEncoding.DecodeString(sdraw)
if err != nil {
return nil, err
@@ -348,7 +360,7 @@ func WriteBackupStreamFromTarFile(w io.Writer, t *tar.Reader, hdr *tar.Header) (
}
}
var eas []winio.ExtendedAttribute
- for k, v := range hdr.Winheaders {
+ for k, v := range hdr.PAXRecords {
if !strings.HasPrefix(k, hdrEaPrefix) {
continue
}
@@ -380,7 +392,7 @@ func WriteBackupStreamFromTarFile(w io.Writer, t *tar.Reader, hdr *tar.Header) (
}
}
if hdr.Typeflag == tar.TypeSymlink {
- _, isMountPoint := hdr.Winheaders[hdrMountPoint]
+ _, isMountPoint := hdr.PAXRecords[hdrMountPoint]
rp := winio.ReparsePoint{
Target: filepath.FromSlash(hdr.Linkname),
IsMountPoint: isMountPoint,