Golang dhcp4.Packet类代码示例

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本文整理汇总了Golang中github.com/coreos/rkt/Godeps/_workspace/src/github.com/d2g/dhcp4.Packet类的典型用法代码示例。如果您正苦于以下问题：Golang Packet类的具体用法？Golang Packet怎么用？Golang Packet使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Packet类的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Golang代码示例。

示例1: commit

func (l *DHCPLease) commit(ack *dhcp4.Packet) error {
	opts := ack.ParseOptions()

	leaseTime, err := parseLeaseTime(opts)
	if err != nil {
		return err
	}

	rebindingTime, err := parseRebindingTime(opts)
	if err != nil || rebindingTime > leaseTime {
		// Per RFC 2131 Section 4.4.5, it should default to 85% of lease time
		rebindingTime = leaseTime * 85 / 100
	}

	renewalTime, err := parseRenewalTime(opts)
	if err != nil || renewalTime > rebindingTime {
		// Per RFC 2131 Section 4.4.5, it should default to 50% of lease time
		renewalTime = leaseTime / 2
	}

	now := time.Now()
	l.expireTime = now.Add(leaseTime)
	l.renewalTime = now.Add(renewalTime)
	l.rebindingTime = now.Add(rebindingTime)
	l.ack = ack
	l.opts = opts

	return nil
}

开发者ID:samarvin，项目名称:rkt，代码行数:29，代码来源:lease.go

示例2: GetAcknowledgement

/*
 * Retreive Acknowledgement
 * Wait for the offer for a specific Request Packet.
 */
func (c *Client) GetAcknowledgement(requestPacket *dhcp4.Packet) (dhcp4.Packet, error) {
	for {
		c.connection.SetReadTimeout(c.timeout)
		readBuffer, source, err := c.connection.ReadFrom()
		if err != nil {
			return dhcp4.Packet{}, err
		}

		acknowledgementPacket := dhcp4.Packet(readBuffer)
		acknowledgementPacketOptions := acknowledgementPacket.ParseOptions()

		// Ignore Servers in my Ignore list
		for _, ignoreServer := range c.ignoreServers {
			if source.Equal(ignoreServer) {
				continue
			}

			if acknowledgementPacket.SIAddr().Equal(ignoreServer) {
				continue
			}
		}

		if !bytes.Equal(requestPacket.XId(), acknowledgementPacket.XId()) || len(acknowledgementPacketOptions[dhcp4.OptionDHCPMessageType]) < 1 || (dhcp4.MessageType(acknowledgementPacketOptions[dhcp4.OptionDHCPMessageType][0]) != dhcp4.ACK && dhcp4.MessageType(acknowledgementPacketOptions[dhcp4.OptionDHCPMessageType][0]) != dhcp4.NAK) {
			continue
		}

		return acknowledgementPacket, nil
	}
}

开发者ID:matomesc，项目名称:rkt，代码行数:33，代码来源:client.go

示例3: RequestPacket

/*
 * Create Request Packet
 */
func (c *Client) RequestPacket(offerPacket *dhcp4.Packet) dhcp4.Packet {
	offerOptions := offerPacket.ParseOptions()

	packet := dhcp4.NewPacket(dhcp4.BootRequest)
	packet.SetCHAddr(c.hardwareAddr)

	packet.SetXId(offerPacket.XId())
	packet.SetCIAddr(offerPacket.CIAddr())
	packet.SetSIAddr(offerPacket.SIAddr())

	packet.SetBroadcast(c.broadcast)
	packet.AddOption(dhcp4.OptionDHCPMessageType, []byte{byte(dhcp4.Request)})
	packet.AddOption(dhcp4.OptionRequestedIPAddress, (offerPacket.YIAddr()).To4())
	packet.AddOption(dhcp4.OptionServerIdentifier, offerOptions[dhcp4.OptionServerIdentifier])

	//packet.PadToMinSize()
	return packet
}

开发者ID:matomesc，项目名称:rkt，代码行数:21，代码来源:client.go

示例4: RenewalRequestPacket

/*
 * Create Request Packet For a Renew
 */
func (c *Client) RenewalRequestPacket(acknowledgement *dhcp4.Packet) dhcp4.Packet {
	messageid := make([]byte, 4)
	if _, err := rand.Read(messageid); err != nil {
		panic(err)
	}

	acknowledgementOptions := acknowledgement.ParseOptions()

	packet := dhcp4.NewPacket(dhcp4.BootRequest)
	packet.SetCHAddr(acknowledgement.CHAddr())

	packet.SetXId(messageid)
	packet.SetCIAddr(acknowledgement.YIAddr())
	packet.SetSIAddr(acknowledgement.SIAddr())

	packet.SetBroadcast(c.broadcast)
	packet.AddOption(dhcp4.OptionDHCPMessageType, []byte{byte(dhcp4.Request)})
	packet.AddOption(dhcp4.OptionRequestedIPAddress, (acknowledgement.YIAddr()).To4())
	packet.AddOption(dhcp4.OptionServerIdentifier, acknowledgementOptions[dhcp4.OptionServerIdentifier])

	//packet.PadToMinSize()
	return packet
}

开发者ID:matomesc，项目名称:rkt，代码行数:26，代码来源:client.go

示例5: GetOffer

/*
 * Retreive Offer...
 * Wait for the offer for a specific Discovery Packet.
 */
func (c *Client) GetOffer(discoverPacket *dhcp4.Packet) (dhcp4.Packet, error) {
	for {
		c.connection.SetReadTimeout(c.timeout)
		readBuffer, source, err := c.connection.ReadFrom()
		if err != nil {
			return dhcp4.Packet{}, err
		}

		offerPacket := dhcp4.Packet(readBuffer)
		offerPacketOptions := offerPacket.ParseOptions()

		// Ignore Servers in my Ignore list
		for _, ignoreServer := range c.ignoreServers {
			if source.Equal(ignoreServer) {
				continue
			}

			if offerPacket.SIAddr().Equal(ignoreServer) {
				continue
			}
		}

		if len(offerPacketOptions[dhcp4.OptionDHCPMessageType]) < 1 || dhcp4.MessageType(offerPacketOptions[dhcp4.OptionDHCPMessageType][0]) != dhcp4.Offer || !bytes.Equal(discoverPacket.XId(), offerPacket.XId()) {
			continue
		}

		return offerPacket, nil
	}

}

开发者ID:matomesc，项目名称:rkt，代码行数:34，代码来源:client.go

注：本文中的github.com/coreos/rkt/Godeps/_workspace/src/github.com/d2g/dhcp4.Packet类示例整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。