backup: Ignore xattr.list permission error for parent directories

On FreeBSD, limited users may not be able to even list xattrs for the
parent directories above the snapshot source paths. As this can cause
the backup to fail, just ignore those errors.
This commit is contained in:
Michael Eischer
2024-01-31 20:48:03 +01:00
parent 6091029fd6
commit bf054c09d2
17 changed files with 97 additions and 25 deletions

View File

@@ -237,8 +237,8 @@ func (arch *Archiver) trackItem(item string, previous, current *restic.Node, s I
}
// nodeFromFileInfo returns the restic node from an os.FileInfo.
func (arch *Archiver) nodeFromFileInfo(snPath, filename string, fi os.FileInfo) (*restic.Node, error) {
node, err := restic.NodeFromFileInfo(filename, fi)
func (arch *Archiver) nodeFromFileInfo(snPath, filename string, fi os.FileInfo, ignoreXattrListError bool) (*restic.Node, error) {
node, err := restic.NodeFromFileInfo(filename, fi, ignoreXattrListError)
if !arch.WithAtime {
node.AccessTime = node.ModTime
}
@@ -289,7 +289,7 @@ func (arch *Archiver) wrapLoadTreeError(id restic.ID, err error) error {
func (arch *Archiver) saveDir(ctx context.Context, snPath string, dir string, fi os.FileInfo, previous *restic.Tree, complete CompleteFunc) (d FutureNode, err error) {
debug.Log("%v %v", snPath, dir)
treeNode, err := arch.nodeFromFileInfo(snPath, dir, fi)
treeNode, err := arch.nodeFromFileInfo(snPath, dir, fi, false)
if err != nil {
return FutureNode{}, err
}
@@ -444,7 +444,7 @@ func (arch *Archiver) save(ctx context.Context, snPath, target string, previous
debug.Log("%v hasn't changed, using old list of blobs", target)
arch.trackItem(snPath, previous, previous, ItemStats{}, time.Since(start))
arch.CompleteBlob(previous.Size)
node, err := arch.nodeFromFileInfo(snPath, target, fi)
node, err := arch.nodeFromFileInfo(snPath, target, fi, false)
if err != nil {
return FutureNode{}, false, err
}
@@ -540,7 +540,7 @@ func (arch *Archiver) save(ctx context.Context, snPath, target string, previous
default:
debug.Log(" %v other", target)
node, err := arch.nodeFromFileInfo(snPath, target, fi)
node, err := arch.nodeFromFileInfo(snPath, target, fi, false)
if err != nil {
return FutureNode{}, false, err
}
@@ -623,7 +623,9 @@ func (arch *Archiver) saveTree(ctx context.Context, snPath string, atree *Tree,
}
debug.Log("%v, dir node data loaded from %v", snPath, atree.FileInfoPath)
node, err = arch.nodeFromFileInfo(snPath, atree.FileInfoPath, fi)
// in some cases reading xattrs for directories above the backup target is not allowed
// thus ignore errors for such folders.
node, err = arch.nodeFromFileInfo(snPath, atree.FileInfoPath, fi, true)
if err != nil {
return FutureNode{}, 0, err
}

View File

@@ -556,7 +556,7 @@ func rename(t testing.TB, oldname, newname string) {
}
func nodeFromFI(t testing.TB, filename string, fi os.FileInfo) *restic.Node {
node, err := restic.NodeFromFileInfo(filename, fi)
node, err := restic.NodeFromFileInfo(filename, fi, false)
if err != nil {
t.Fatal(err)
}
@@ -2230,7 +2230,7 @@ func TestMetadataChanged(t *testing.T) {
// get metadata
fi := lstat(t, "testfile")
want, err := restic.NodeFromFileInfo("testfile", fi)
want, err := restic.NodeFromFileInfo("testfile", fi, false)
if err != nil {
t.Fatal(err)
}

View File

@@ -48,7 +48,7 @@ func wrapFileInfo(fi os.FileInfo) os.FileInfo {
func statAndSnapshot(t *testing.T, repo restic.Repository, name string) (*restic.Node, *restic.Node) {
fi := lstat(t, name)
want, err := restic.NodeFromFileInfo(name, fi)
want, err := restic.NodeFromFileInfo(name, fi, false)
rtest.OK(t, err)
_, node := snapshot(t, repo, fs.Local{}, nil, name)

View File

@@ -29,7 +29,7 @@ type FileSaver struct {
CompleteBlob func(bytes uint64)
NodeFromFileInfo func(snPath, filename string, fi os.FileInfo) (*restic.Node, error)
NodeFromFileInfo func(snPath, filename string, fi os.FileInfo, ignoreXattrListError bool) (*restic.Node, error)
}
// NewFileSaver returns a new file saver. A worker pool with fileWorkers is
@@ -156,7 +156,7 @@ func (s *FileSaver) saveFile(ctx context.Context, chnker *chunker.Chunker, snPat
debug.Log("%v", snPath)
node, err := s.NodeFromFileInfo(snPath, f.Name(), fi)
node, err := s.NodeFromFileInfo(snPath, f.Name(), fi, false)
if err != nil {
_ = f.Close()
completeError(err)

View File

@@ -49,8 +49,8 @@ func startFileSaver(ctx context.Context, t testing.TB) (*FileSaver, context.Cont
}
s := NewFileSaver(ctx, wg, saveBlob, pol, workers, workers)
s.NodeFromFileInfo = func(snPath, filename string, fi os.FileInfo) (*restic.Node, error) {
return restic.NodeFromFileInfo(filename, fi)
s.NodeFromFileInfo = func(snPath, filename string, fi os.FileInfo, ignoreXattrListError bool) (*restic.Node, error) {
return restic.NodeFromFileInfo(filename, fi, ignoreXattrListError)
}
return s, ctx, wg