Bump github.com/containers/storage from 1.33.2 to 1.34.0

Bumps [github.com/containers/storage](https://github.com/containers/storage) from 1.33.2 to 1.34.0.
- [Release notes](https://github.com/containers/storage/releases)
- [Changelog](https://github.com/containers/storage/blob/main/docs/containers-storage-changes.md)
- [Commits](https://github.com/containers/storage/compare/v1.33.2...v1.34.0)

---
updated-dependencies:
- dependency-name: github.com/containers/storage
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>

vendor/github.com/containers/storage/VERSION

@@ -1 +1 @@
-1.33.2
+1.34.0

vendor/github.com/containers/storage/drivers/overlay/check_115.go

@@ -0,0 +1,42 @@
+// +build !go1.16
+
+package overlay
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/containers/storage/pkg/archive"
+	"github.com/containers/storage/pkg/system"
+)
+
+func scanForMountProgramIndicators(home string) (detected bool, err error) {
+	err = filepath.Walk(home, func(path string, info os.FileInfo, err error) error {
+		if detected {
+			return filepath.SkipDir
+		}
+		if err != nil {
+			return err
+		}
+		basename := filepath.Base(path)
+		if strings.HasPrefix(basename, archive.WhiteoutPrefix) {
+			detected = true
+			return filepath.SkipDir
+		}
+		if info.IsDir() {
+			xattrs, err := system.Llistxattr(path)
+			if err != nil {
+				return err
+			}
+			for _, xattr := range xattrs {
+				if strings.HasPrefix(xattr, "user.fuseoverlayfs.") || strings.HasPrefix(xattr, "user.containers.") {
+					detected = true
+					return filepath.SkipDir
+				}
+			}
+		}
+		return nil
+	})
+	return detected, err
+}

vendor/github.com/containers/storage/drivers/overlay/check_116.go

@@ -0,0 +1,42 @@
+// +build go1.16
+
+package overlay
+
+import (
+	"io/fs"
+	"path/filepath"
+	"strings"
+
+	"github.com/containers/storage/pkg/archive"
+	"github.com/containers/storage/pkg/system"
+)
+
+func scanForMountProgramIndicators(home string) (detected bool, err error) {
+	err = filepath.WalkDir(home, func(path string, d fs.DirEntry, err error) error {
+		if detected {
+			return fs.SkipDir
+		}
+		if err != nil {
+			return err
+		}
+		basename := filepath.Base(path)
+		if strings.HasPrefix(basename, archive.WhiteoutPrefix) {
+			detected = true
+			return fs.SkipDir
+		}
+		if d.IsDir() {
+			xattrs, err := system.Llistxattr(path)
+			if err != nil {
+				return err
+			}
+			for _, xattr := range xattrs {
+				if strings.HasPrefix(xattr, "user.fuseoverlayfs.") || strings.HasPrefix(xattr, "user.containers.") {
+					detected = true
+					return fs.SkipDir
+				}
+			}
+		}
+		return nil
+	})
+	return detected, err
+}

vendor/github.com/containers/storage/drivers/overlay/overlay.go

@@ -266,9 +266,8 @@ func Init(home string, options graphdriver.Options) (graphdriver.Driver, error)
 	}
 
 	if opts.mountProgram != "" {
-		f, err := os.Create(getMountProgramFlagFile(home))
-		if err == nil {
-			f.Close()
+		if err := ioutil.WriteFile(getMountProgramFlagFile(home), []byte("true"), 0600); err != nil {
+			return nil, err
 		}
 	} else {
 		// check if they are running over btrfs, aufs, zfs, overlay, or ecryptfs
@@ -542,9 +541,29 @@ func SupportsNativeOverlay(graphroot, rundir string) (bool, error) {
 	home := filepath.Join(graphroot, "overlay")
 	runhome := filepath.Join(rundir, "overlay")
 
-	if _, err := os.Stat(getMountProgramFlagFile(home)); err == nil {
+	var contents string
+	flagContent, err := ioutil.ReadFile(getMountProgramFlagFile(home))
+	if err == nil {
+		contents = strings.TrimSpace(string(flagContent))
+	}
+	switch contents {
+	case "true":
 		logrus.Debugf("overlay storage already configured with a mount-program")
 		return false, nil
+	default:
+		needsMountProgram, err := scanForMountProgramIndicators(home)
+		if err != nil && !os.IsNotExist(err) {
+			return false, err
+		}
+		if err := ioutil.WriteFile(getMountProgramFlagFile(home), []byte(fmt.Sprintf("%t", needsMountProgram)), 0600); err != nil && !os.IsNotExist(err) {
+			return false, err
+		}
+		if needsMountProgram {
+			return false, nil
+		}
+		// fall through to check if we find ourselves needing to use a
+		// mount program now
+	case "false":
 	}
 
 	for _, dir := range []string{home, runhome} {

vendor/github.com/containers/storage/pkg/idtools/idtools_supported.go

@@ -1,4 +1,4 @@
-// +build linux,cgo,!no_libsubid
+// +build linux,cgo,libsubid
 
 package idtools
 

vendor/github.com/containers/storage/pkg/idtools/idtools_unsupported.go

@@ -1,4 +1,4 @@
-// +build !linux no_libsubid !cgo
+// +build !linux !libsubid !cgo
 
 package idtools