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Add option to preserve digests on copy

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When enabled, if digests can't be preserved an error will be raised.

Signed-off-by: James Hewitt <james.hewitt@uk.ibm.com>
This commit is contained in:
James Hewitt
2021-11-21 16:20:33 +00:00
parent 25868f17c0
commit 2046bfdaaa
15 changed files with 207 additions and 43 deletions
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45
vendor/github.com/opencontainers/selinux/go-selinux/selinux_linux.go generated vendored
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@@ -316,8 +316,9 @@ func classIndex(class string) (int, error) {
return index, nil
}
// setFileLabel sets the SELinux label for this path or returns an error.
func setFileLabel(fpath string, label string) error {
// lSetFileLabel sets the SELinux label for this path, not following symlinks,
// or returns an error.
func lSetFileLabel(fpath string, label string) error {
if fpath == "" {
return ErrEmptyPath
}
@@ -334,12 +335,50 @@ func setFileLabel(fpath string, label string) error {
return nil
}
// fileLabel returns the SELinux label for this path or returns an error.
// setFileLabel sets the SELinux label for this path, following symlinks,
// or returns an error.
func setFileLabel(fpath string, label string) error {
if fpath == "" {
return ErrEmptyPath
}
for {
err := unix.Setxattr(fpath, xattrNameSelinux, []byte(label), 0)
if err == nil {
break
}
if err != unix.EINTR { //nolint:errorlint // unix errors are bare
return &os.PathError{Op: "setxattr", Path: fpath, Err: err}
}
}
return nil
}
// fileLabel returns the SELinux label for this path, following symlinks,
// or returns an error.
func fileLabel(fpath string) (string, error) {
if fpath == "" {
return "", ErrEmptyPath
}
label, err := getxattr(fpath, xattrNameSelinux)
if err != nil {
return "", &os.PathError{Op: "getxattr", Path: fpath, Err: err}
}
// Trim the NUL byte at the end of the byte buffer, if present.
if len(label) > 0 && label[len(label)-1] == '\x00' {
label = label[:len(label)-1]
}
return string(label), nil
}
// lFileLabel returns the SELinux label for this path, not following symlinks,
// or returns an error.
func lFileLabel(fpath string) (string, error) {
if fpath == "" {
return "", ErrEmptyPath
}
label, err := lgetxattr(fpath, xattrNameSelinux)
if err != nil {
return "", &os.PathError{Op: "lgetxattr", Path: fpath, Err: err}