44 lines
929 B
Go
44 lines
929 B
Go
//go:build linux
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package overlay
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import (
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"errors"
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"io/fs"
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"path/filepath"
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"strings"
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"github.com/containers/storage/pkg/archive"
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"github.com/containers/storage/pkg/system"
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)
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func scanForMountProgramIndicators(home string) (detected bool, err error) {
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err = filepath.WalkDir(home, func(path string, d fs.DirEntry, err error) error {
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if detected {
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return fs.SkipDir
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}
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if err != nil {
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return err
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}
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basename := filepath.Base(path)
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if strings.HasPrefix(basename, archive.WhiteoutPrefix) {
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detected = true
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return fs.SkipDir
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}
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if d.IsDir() {
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xattrs, err := system.Llistxattr(path)
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if err != nil && !errors.Is(err, system.ENOTSUP) {
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return err
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}
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for _, xattr := range xattrs {
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if strings.HasPrefix(xattr, "user.fuseoverlayfs.") || strings.HasPrefix(xattr, "user.containers.") {
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detected = true
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return fs.SkipDir
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}
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}
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}
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return nil
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})
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return detected, err
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}
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