diff options
Diffstat (limited to 'internal/configfile/feature_flags.go')
| -rw-r--r-- | internal/configfile/feature_flags.go | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/internal/configfile/feature_flags.go b/internal/configfile/feature_flags.go index ad7bec1..d3601b1 100644 --- a/internal/configfile/feature_flags.go +++ b/internal/configfile/feature_flags.go @@ -3,16 +3,24 @@ package configfile type flagIota int const ( + // FlagPlaintextNames indicates that filenames are unencrypted. FlagPlaintextNames flagIota = iota + // FlagDirIV indicates that a per-directory IV file is used. FlagDirIV + // FlagEMENames indicates EME (ECB-Mix-ECB) filename encryption. + // This flag is mandatory since gocryptfs v1.0. FlagEMENames + // FlagGCMIV128 indicates 128-bit GCM IVs. + // This flag is mandatory since gocryptfs v1.0. FlagGCMIV128 + // FlagLongNames allows file names longer than 176 bytes. FlagLongNames + // FlagAESSIV selects an AES-SIV based crypto backend. FlagAESSIV ) // knownFlags stores the known feature flags and their string representation -var knownFlags map[flagIota]string = map[flagIota]string{ +var knownFlags = map[flagIota]string{ FlagPlaintextNames: "PlaintextNames", FlagDirIV: "DirIV", FlagEMENames: "EMENames", @@ -22,7 +30,7 @@ var knownFlags map[flagIota]string = map[flagIota]string{ } // Filesystems that do not have these feature flags set are deprecated. -var requiredFlagsNormal []flagIota = []flagIota{ +var requiredFlagsNormal = []flagIota{ FlagDirIV, FlagEMENames, FlagGCMIV128, @@ -30,11 +38,11 @@ var requiredFlagsNormal []flagIota = []flagIota{ // Filesystems without filename encryption obviously don't have or need the // filename related feature flags. -var requiredFlagsPlaintextNames []flagIota = []flagIota{ +var requiredFlagsPlaintextNames = []flagIota{ FlagGCMIV128, } -// isFeatureFlagKnown verifies that we understand a feature flag +// isFeatureFlagKnown verifies that we understand a feature flag. func (cf *ConfFile) isFeatureFlagKnown(flag string) bool { for _, knownFlag := range knownFlags { if knownFlag == flag { @@ -44,7 +52,7 @@ func (cf *ConfFile) isFeatureFlagKnown(flag string) bool { return false } -// isFeatureFlagSet - is the feature flag "flagWant" enabled? +// IsFeatureFlagSet returns true if the feature flag "flagWant" is enabled. func (cf *ConfFile) IsFeatureFlagSet(flagWant flagIota) bool { flagString := knownFlags[flagWant] for _, flag := range cf.FeatureFlags { |