EtherGuard-VPN/constants.go
2018-02-04 16:08:26 +01:00

44 lines
1.4 KiB
Go

package main
import (
"time"
)
/* Specification constants */
const (
RekeyAfterMessages = (1 << 64) - (1 << 16) - 1
RejectAfterMessages = (1 << 64) - (1 << 4) - 1
RekeyAfterTime = time.Second * 120
RekeyAttemptTime = time.Second * 90
RekeyTimeout = time.Second * 5
RejectAfterTime = time.Second * 180
KeepaliveTimeout = time.Second * 10
CookieRefreshTime = time.Second * 120
HandshakeInitationRate = time.Second / 20
PaddingMultiple = 16
)
const (
RekeyAfterTimeReceiving = RekeyAfterTime - KeepaliveTimeout - RekeyTimeout
NewHandshakeTime = KeepaliveTimeout + RekeyTimeout // upon failure to acknowledge transport message
)
/* Implementation specific constants */
const (
QueueOutboundSize = 1024
QueueInboundSize = 1024
QueueHandshakeSize = 1024
MaxSegmentSize = (1 << 16) - 1 // largest possible UDP datagram
MinMessageSize = MessageKeepaliveSize // minimum size of transport message (keepalive)
MaxMessageSize = MaxSegmentSize // maximum size of transport message
MaxContentSize = MaxSegmentSize - MessageTransportSize // maximum size of transport message content
)
const (
UnderLoadQueueSize = QueueHandshakeSize / 8
UnderLoadAfterTime = time.Second // how long does the device remain under load after detected
MaxPeers = 1 << 16 // maximum number of configured peers
)