// Change the label of path to the filelabel string.
// It changes the MCS label to s0 if shared is true.
// This will allow all containers to share the content.
func Relabel(path string, fileLabel string, shared bool) error {
if !selinux.SelinuxEnabled() {
return nil
}
if fileLabel == "" {
return nil
}
exclude_paths := map[string]bool{"/": true, "/usr": true, "/etc": true}
if exclude_paths[path] {
return fmt.Errorf("Relabeling of %s is not allowed", path)
}
if shared {
c := selinux.NewContext(fileLabel)
c["level"] = "s0"
fileLabel = c.Get()
}
return selinux.Chcon(path, fileLabel, true)
}
// Change the label of path to the filelabel string. If the relabel string
// is "z", relabel will change the MCS label to s0. This will allow all
// containers to share the content. If the relabel string is a "Z" then
// the MCS label should continue to be used. SELinux will use this field
// to make sure the content can not be shared by other containes.
func Relabel(path string, fileLabel string, relabel string) error {
exclude_path := []string{"/", "/usr", "/etc"}
if fileLabel == "" {
return nil
}
if !strings.ContainsAny(relabel, "zZ") {
return nil
}
for _, p := range exclude_path {
if path == p {
return fmt.Errorf("Relabeling of %s is not allowed", path)
}
}
if strings.Contains(relabel, "z") && strings.Contains(relabel, "Z") {
return fmt.Errorf("Bad SELinux option z and Z can not be used together")
}
if strings.Contains(relabel, "z") {
c := selinux.NewContext(fileLabel)
c["level"] = "s0"
fileLabel = c.Get()
}
return selinux.Chcon(path, fileLabel, true)
}
