preupstream

type Config struct {
	// Cloner is used to clone messages taken from cache.
	Cloner *dnsmsg.Cloner

	// DB is used to update anonymous statistics about DNS queries.
	DB dnsdb.Interface

	// GeoIP is the GeoIP database used to detect geographic data about IP
	// addresses in requests and responses.
	GeoIP geoip.Interface

	// CacheMinTTL is the minimum supported TTL for cache items.
	CacheMinTTL time.Duration

	// CacheSize is the size of the DNS cache for domain names that don't
	// support ECS.
	CacheSize int

	// ECSCacheSize is the size of the DNS cache for domain names that support
	// ECS.
	ECSCacheSize int

	// UseECSCache shows if the EDNS Client Subnet (ECS) aware cache should be
	// used.
	UseECSCache bool

	// UseCacheTTLOverride shows if the TTL overrides logic should be used.
	UseCacheTTLOverride bool
}

type Middleware struct {
	// contains filtered or unexported fields
}