package router

import (
	"math"
	"time"
)

const (
	EthernetOverhead   = 14
	UDPOverhead        = 28 // 20 bytes for IPv4, 8 bytes for UDP
	Port               = 6783
	HttpPort           = Port + 1
	DefaultPMTU        = 65535
	MaxUDPPacketSize   = 65536
	ChannelSize        = 16
	UDPNonceSendAt     = 8192
	FragTestSize       = 60001
	PMTUDiscoverySize  = 60000
	FastHeartbeat      = 500 * time.Millisecond
	SlowHeartbeat      = 10 * time.Second
	FragTestInterval   = 5 * time.Minute
	EstablishedTimeout = 30 * time.Second
	ReadTimeout        = 1 * time.Minute
	PMTUVerifyAttempts = 8
	PMTUVerifyTimeout  = 10 * time.Millisecond // gets doubled with every attempt
	MaxDuration        = time.Duration(math.MaxInt64)
)

var (
	FragTest      = make([]byte, FragTestSize)
	PMTUDiscovery = make([]byte, PMTUDiscoverySize)
)