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Golang CfgNetworkState.IPv6LastHost方法代码示例

本文整理汇总了Golang中github.com/contiv/netplugin/netmaster/mastercfg.CfgNetworkState.IPv6LastHost方法的典型用法代码示例。如果您正苦于以下问题:Golang CfgNetworkState.IPv6LastHost方法的具体用法?Golang CfgNetworkState.IPv6LastHost怎么用?Golang CfgNetworkState.IPv6LastHost使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在github.com/contiv/netplugin/netmaster/mastercfg.CfgNetworkState的用法示例。


在下文中一共展示了CfgNetworkState.IPv6LastHost方法的1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,您的评价将有助于系统推荐出更棒的Golang代码示例。

示例1: networkAllocAddress

// Allocate an address from the network
func networkAllocAddress(nwCfg *mastercfg.CfgNetworkState, reqAddr string, isIPv6 bool) (string, error) {
	var ipAddress string
	var ipAddrValue uint
	var found bool
	var err error
	var hostID string

	// alloc address
	if reqAddr == "" {
		if isIPv6 {
			// Get the next available IPv6 address
			hostID, err = netutils.GetNextIPv6HostID(nwCfg.IPv6LastHost, nwCfg.IPv6Subnet, nwCfg.IPv6SubnetLen, nwCfg.IPv6AllocMap)
			if err != nil {
				log.Errorf("create eps: error allocating ip. Error: %s", err)
				return "", err
			}
			ipAddress, err = netutils.GetSubnetIPv6(nwCfg.IPv6Subnet, nwCfg.IPv6SubnetLen, hostID)
			if err != nil {
				log.Errorf("create eps: error acquiring subnet ip. Error: %s", err)
				return "", err
			}
			nwCfg.IPv6LastHost = hostID
		} else {
			ipAddrValue, found = nwCfg.IPAllocMap.NextClear(0)
			if !found {
				log.Errorf("auto allocation failed - address exhaustion in subnet %s/%d",
					nwCfg.SubnetIP, nwCfg.SubnetLen)
				err = core.Errorf("auto allocation failed - address exhaustion in subnet %s/%d",
					nwCfg.SubnetIP, nwCfg.SubnetLen)
				return "", err
			}
			ipAddress, err = netutils.GetSubnetIP(nwCfg.SubnetIP, nwCfg.SubnetLen, 32, ipAddrValue)
			if err != nil {
				log.Errorf("create eps: error acquiring subnet ip. Error: %s", err)
				return "", err
			}
		}

		// Docker, Mesos issue a Alloc Address first, followed by a CreateEndpoint
		// Kubernetes issues a create endpoint directly
		// since networkAllocAddress is called from both AllocAddressHandler and CreateEndpointHandler,
		// we need to make sure that the EpCount is incremented only when we are allocating
		// a new IP. In case of Docker, Mesos CreateEndPoint will already request a IP that
		// allocateAddress had allocated in the earlier call.
		nwCfg.EpAddrCount++

	} else if reqAddr != "" && nwCfg.SubnetIP != "" {
		if isIPv6 {
			hostID, err = netutils.GetIPv6HostID(nwCfg.IPv6Subnet, nwCfg.IPv6SubnetLen, reqAddr)
			if err != nil {
				log.Errorf("create eps: error getting host id from hostIP %s Subnet %s/%d. Error: %s",
					reqAddr, nwCfg.IPv6Subnet, nwCfg.IPv6SubnetLen, err)
				return "", err
			}
		} else {
			ipAddrValue, err = netutils.GetIPNumber(nwCfg.SubnetIP, nwCfg.SubnetLen, 32, reqAddr)
			if err != nil {
				log.Errorf("create eps: error getting host id from hostIP %s Subnet %s/%d. Error: %s",
					reqAddr, nwCfg.SubnetIP, nwCfg.SubnetLen, err)
				return "", err
			}
		}

		ipAddress = reqAddr
	}

	if isIPv6 {
		netutils.ReserveIPv6HostID(hostID, &nwCfg.IPv6AllocMap)
	} else {
		// Set the bitmap
		nwCfg.IPAllocMap.Set(ipAddrValue)
	}

	err = nwCfg.Write()
	if err != nil {
		log.Errorf("error writing nw config. Error: %s", err)
		return "", err
	}

	return ipAddress, nil
}
开发者ID:abhinandanpb,项目名称:netplugin,代码行数:82,代码来源:network.go


注:本文中的github.com/contiv/netplugin/netmaster/mastercfg.CfgNetworkState.IPv6LastHost方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,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。