Golang ip.IP4Net类代码示例

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本文整理汇总了Golang中github.com/flynn/flynn/flannel/pkg/ip.IP4Net类的典型用法代码示例。如果您正苦于以下问题：Golang IP4Net类的具体用法？Golang IP4Net怎么用？Golang IP4Net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IP4Net类的4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: DelRoute

func (dev *vxlanDevice) DelRoute(subnet ip.IP4Net) error {
	route := &netlink.Route{
		Scope: netlink.SCOPE_UNIVERSE,
		Dst:   subnet.ToIPNet(),
		Gw:    subnet.IP.ToIP(),
	}
	log.Infof("calling RouteDel: %s", subnet)
	return netlink.RouteDel(route)
}

开发者ID:ably-forks，项目名称:flynn，代码行数:9，代码来源:device.go

示例2: setupIpMasq

func setupIpMasq(localNet ip.IP4Net, overlayNet ip.IP4Net) error {
	ipt, err := ip.NewIPTables()
	if err != nil {
		return err
	}

	err = ipt.ClearChain("nat", "FLANNEL")
	if err != nil {
		return fmt.Errorf("Failed to create/clear FLANNEL chain in NAT table: %v", err)
	}

	rules := [][]string{
		{"FLANNEL", "-s", localNet.String(), "-o", "lo", "-j", "ACCEPT"},
		{"FLANNEL", "-s", localNet.String(), "!", "-d", overlayNet.String(), "-j", "MASQUERADE"},
		{"POSTROUTING", "-s", localNet.String(), "-j", "FLANNEL"},
	}

	for _, args := range rules {
		log.Info("Adding iptables rule: ", strings.Join(args, " "))

		if err := ipt.AppendUnique("nat", args...); err != nil {
			return fmt.Errorf("Failed to insert IP masquerade rule: %v", err)
		}
	}

	return nil
}

开发者ID:devick，项目名称:flynn，代码行数:27，代码来源:hostgw.go

示例3: allocateSubnet

func (sm *SubnetManager) allocateSubnet() (ip.IP4Net, error) {
	log.Infof("Picking subnet in range %s ... %s", sm.config.SubnetMin, sm.config.SubnetMax)

	var bag []ip.IP4
	sn := ip.IP4Net{IP: sm.config.SubnetMin, PrefixLen: sm.config.SubnetLen}

OuterLoop:
	for ; sn.IP <= sm.config.SubnetMax && len(bag) < 100; sn = sn.Next() {
		for _, l := range sm.leases {
			if sn.Overlaps(l.Network) {
				continue OuterLoop
			}
		}
		bag = append(bag, sn.IP)
	}

	if len(bag) == 0 {
		return ip.IP4Net{}, errors.New("out of subnets")
	} else {
		i := randInt(0, len(bag))
		return ip.IP4Net{IP: bag[i], PrefixLen: sm.config.SubnetLen}, nil
	}
}

开发者ID:devick，项目名称:flynn，代码行数:23，代码来源:subnet.go

示例4: Configure

func (dev *vxlanDevice) Configure(ipn ip.IP4Net) error {
	if err := setAddr4(dev.link, ipn.ToIPNet()); err != nil {
		return err
	}

	if err := netlink.LinkSetUp(dev.link); err != nil {
		return fmt.Errorf("failed to set interface %s to UP state: %s", dev.link.Attrs().Name, err)
	}

	// explicitly add a route since there might be a route for a subnet already
	// installed by Docker and then it won't get auto added
	route := netlink.Route{
		LinkIndex: dev.link.Attrs().Index,
		Scope:     netlink.SCOPE_UNIVERSE,
		Dst:       ipn.Network().ToIPNet(),
	}
	if err := netlink.RouteAdd(&route); err != nil && err != syscall.EEXIST {
		return fmt.Errorf("failed to add route (%s -> %s): %v", ipn.Network().String(), dev.link.Attrs().Name, err)
	}

	return nil
}

开发者ID:ably-forks，项目名称:flynn，代码行数:22，代码来源:device.go

注：本文中的github.com/flynn/flynn/flannel/pkg/ip.IP4Net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。