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package configfile
type flagIota int
const (
FlagPlaintextNames flagIota = iota
FlagDirIV
FlagEMENames
FlagGCMIV128
FlagLongNames
FlagGCMSIV
)
// knownFlags stores the known feature flags and their string representation
var knownFlags map[flagIota]string = map[flagIota]string{
FlagPlaintextNames: "PlaintextNames",
FlagDirIV: "DirIV",
FlagEMENames: "EMENames",
FlagGCMIV128: "GCMIV128",
FlagLongNames: "LongNames",
FlagGCMSIV: "GCMSIV",
}
// Filesystems that do not have these feature flags set are deprecated.
var requiredFlagsNormal []flagIota = []flagIota{
FlagDirIV,
FlagEMENames,
FlagGCMIV128,
}
// Filesystems without filename encryption obviously don't have or need the
// filename related feature flags.
var requiredFlagsPlaintextNames []flagIota = []flagIota{
FlagGCMIV128,
}
// isFeatureFlagKnown verifies that we understand a feature flag
func (cf *ConfFile) isFeatureFlagKnown(flag string) bool {
for _, knownFlag := range knownFlags {
if knownFlag == flag {
return true
}
}
return false
}
// isFeatureFlagSet - is the feature flag "flagWant" enabled?
func (cf *ConfFile) IsFeatureFlagSet(flagWant flagIota) bool {
flagString := knownFlags[flagWant]
for _, flag := range cf.FeatureFlags {
if flag == flagString {
return true
}
}
return false
}
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