TUN-7333: Default features checkable at runtime across all packages

features/features.go

@@ -0,0 +1,29 @@
+package features
+
+const (
+	FeatureSerializedHeaders = "serialized_headers"
+	FeatureQuickReconnects   = "quick_reconnects"
+	FeatureAllowRemoteConfig = "allow_remote_config"
+	FeatureDatagramV2        = "support_datagram_v2"
+	FeaturePostQuantum       = "postquantum"
+	FeatureQUICSupportEOF    = "support_quic_eof"
+	FeatureManagementLogs    = "management_logs"
+)
+
+var (
+	DefaultFeatures = []string{
+		FeatureAllowRemoteConfig,
+		FeatureSerializedHeaders,
+		FeatureDatagramV2,
+		FeatureQUICSupportEOF,
+	}
+)
+
+func Contains(feature string) bool {
+	for _, f := range DefaultFeatures {
+		if f == feature {
+			return true
+		}
+	}
+	return false
+}