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			49 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			49 lines
		
	
	
		
			1.6 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
| /* SPDX-License-Identifier: GPL-2.0
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|  *
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|  * Copyright (C) 2017-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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|  */
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| 
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| package main
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| 
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| import (
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| 	"time"
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| )
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| 
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| /* Specification constants */
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| 
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| const (
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| 	RekeyAfterMessages     = (1 << 64) - (1 << 16) - 1
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| 	RejectAfterMessages    = (1 << 64) - (1 << 4) - 1
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| 	RekeyAfterTime         = time.Second * 120
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| 	RekeyAttemptTime       = time.Second * 90
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| 	RekeyTimeout           = time.Second * 5
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| 	RejectAfterTime        = time.Second * 180
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| 	KeepaliveTimeout       = time.Second * 10
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| 	CookieRefreshTime      = time.Second * 120
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| 	HandshakeInitationRate = time.Second / 20
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| 	PaddingMultiple        = 16
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| )
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| 
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| const (
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| 	RekeyAfterTimeReceiving = RejectAfterTime - KeepaliveTimeout - RekeyTimeout
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| 	NewHandshakeTime        = KeepaliveTimeout + RekeyTimeout // upon failure to acknowledge transport message
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| )
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| 
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| /* Implementation specific constants */
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| 
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| const (
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| 	QueueOutboundSize  = 1024
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| 	QueueInboundSize   = 1024
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| 	QueueHandshakeSize = 1024
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| 	MaxSegmentSize     = (1 << 16) - 1                         // largest possible UDP datagram
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| 	MinMessageSize     = MessageKeepaliveSize                  // minimum size of transport message (keepalive)
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| 	MaxMessageSize     = MaxSegmentSize                        // maximum size of transport message
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| 	MaxContentSize     = MaxSegmentSize - MessageTransportSize // maximum size of transport message content
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| )
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| 
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| const (
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| 	UnderLoadQueueSize = QueueHandshakeSize / 8
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| 	UnderLoadAfterTime = time.Second // how long does the device remain under load after detected
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| 	MaxPeers           = 1 << 16     // maximum number of configured peers
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| )
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