tun

type EventLogger interface {
	TCPRequest(addr, reqAddr string)
	TCPError(addr, reqAddr string, err error)
	UDPRequest(addr string)
	UDPError(addr string, err error)
}

type Server struct {
	HyClient    client.Client
	EventLogger EventLogger

	// for debugging
	Logger *zap.Logger

	IfName  string
	MTU     uint32
	Timeout int64 // in seconds, also applied to TCP in system stack

	// required by system stack
	Inet4Address []netip.Prefix
	Inet6Address []netip.Prefix

	// auto route
	AutoRoute                bool
	StructRoute              bool
	Inet4RouteAddress        []netip.Prefix
	Inet6RouteAddress        []netip.Prefix
	Inet4RouteExcludeAddress []netip.Prefix
	Inet6RouteExcludeAddress []netip.Prefix
}