Golang types.GetHostPartIP函数代码示例

func (a *Allocator) getAddress(nw *net.IPNet, bitmask *bitseq.Handle, prefAddress net.IP, ipr *AddressRange) (net.IP, error) {
	var (
		ordinal uint64
		err     error
		base    *net.IPNet
	)

	base = types.GetIPNetCopy(nw)

	if bitmask.Unselected() <= 0 {
		return nil, ipamapi.ErrNoAvailableIPs
	}
	if ipr == nil && prefAddress == nil {
		ordinal, err = bitmask.SetAny()
	} else if prefAddress != nil {
		hostPart, e := types.GetHostPartIP(prefAddress, base.Mask)
		if e != nil {
			return nil, fmt.Errorf("failed to allocate preferred address %s: %v", prefAddress.String(), e)
		}
		ordinal = ipToUint64(types.GetMinimalIP(hostPart))
		err = bitmask.Set(ordinal)
	} else {
		base.IP = ipr.Sub.IP
		ordinal, err = bitmask.SetAnyInRange(ipr.Start, ipr.End)
	}
	if err != nil {
		return nil, ipamapi.ErrNoAvailableIPs
	}

	// Convert IP ordinal for this subnet into IP address
	return generateAddress(ordinal, base), nil
}

func (a *Allocator) getAddress(subnet *net.IPNet, bitmask *bitseq.Handle, prefAddress net.IP, ver ipVersion) (net.IP, error) {
	var (
		ordinal uint32
		err     error
	)

	if bitmask.Unselected() <= 0 {
		return nil, ErrNoAvailableIPs
	}
	if prefAddress == nil {
		ordinal, err = bitmask.SetAny()
	} else {
		hostPart, e := types.GetHostPartIP(prefAddress, subnet.Mask)
		if e != nil {
			return nil, fmt.Errorf("failed to allocate preferred address %s: %v", prefAddress.String(), e)
		}
		ordinal = ipToUint32(types.GetMinimalIP(hostPart))
		err = bitmask.Set(ordinal)
	}
	if err != nil {
		return nil, ErrNoAvailableIPs
	}

	// Convert IP ordinal for this subnet into IP address
	return generateAddress(ordinal, subnet), nil
}

// ReleaseAddress releases the address from the specified pool ID
func (a *Allocator) ReleaseAddress(poolID string, address net.IP) error {
	log.Debugf("ReleaseAddress(%s, %v)", poolID, address)
	k := SubnetKey{}
	if err := k.FromString(poolID); err != nil {
		return types.BadRequestErrorf("invalid pool id: %s", poolID)
	}

	if err := a.refresh(k.AddressSpace); err != nil {
		return err
	}

	aSpace, err := a.getAddrSpace(k.AddressSpace)
	if err != nil {
		return err
	}

	aSpace.Lock()
	p, ok := aSpace.subnets[k]
	if !ok {
		aSpace.Unlock()
		return ipamapi.ErrBadPool
	}

	if address == nil {
		aSpace.Unlock()
		return ipamapi.ErrInvalidRequest
	}

	if !p.Pool.Contains(address) {
		aSpace.Unlock()
		return ipamapi.ErrIPOutOfRange
	}

	c := p
	for c.Range != nil {
		k = c.ParentKey
		c = aSpace.subnets[k]
	}
	aSpace.Unlock()

	mask := p.Pool.Mask
	if p.Range != nil {
		mask = p.Range.Sub.Mask
	}

	h, err := types.GetHostPartIP(address, mask)
	if err != nil {
		return fmt.Errorf("failed to release address %s: %v", address.String(), err)
	}

	bm, err := a.retrieveBitmask(k, c.Pool)
	if err != nil {
		return fmt.Errorf("could not find bitmask in datastore for %s on address %v release from pool %s: %v",
			k.String(), address, poolID, err)
	}

	return bm.Unset(ipToUint64(h))
}

func ipamOption(bridgeName string) libnetwork.NetworkOption {
	if nw, _, err := ipamutils.ElectInterfaceAddresses(bridgeName); err == nil {
		ipamV4Conf := &libnetwork.IpamConf{PreferredPool: nw.String()}
		hip, _ := types.GetHostPartIP(nw.IP, nw.Mask)
		if hip.IsGlobalUnicast() {
			ipamV4Conf.Gateway = nw.IP.String()
		}
		return libnetwork.NetworkOptionIpam("default", "", []*libnetwork.IpamConf{ipamV4Conf}, nil)
	}
	return nil
}

func getAddressRange(pool string) (*AddressRange, error) {
	ip, nw, err := net.ParseCIDR(pool)
	if err != nil {
		return nil, ipamapi.ErrInvalidSubPool
	}
	lIP, e := types.GetHostPartIP(nw.IP, nw.Mask)
	if e != nil {
		return nil, fmt.Errorf("failed to compute range's lowest ip address: %v", e)
	}
	bIP, e := types.GetBroadcastIP(nw.IP, nw.Mask)
	if e != nil {
		return nil, fmt.Errorf("failed to compute range's broadcast ip address: %v", e)
	}
	hIP, e := types.GetHostPartIP(bIP, nw.Mask)
	if e != nil {
		return nil, fmt.Errorf("failed to compute range's highest ip address: %v", e)
	}
	nw.IP = ip
	return &AddressRange{nw, ipToUint64(types.GetMinimalIP(lIP)), ipToUint64(types.GetMinimalIP(hIP))}, nil
}

// ReleaseAddress releases the address from the specified pool ID
func (a *Allocator) ReleaseAddress(poolID string, address net.IP) error {
	k := SubnetKey{}
	if err := k.FromString(poolID); err != nil {
		return types.BadRequestErrorf("invalid pool id: %s", poolID)
	}

	cfg, err := a.getPoolsConfig(k.AddressSpace)
	if err != nil {
		return err
	}

	cfg.Lock()
	p, ok := cfg.subnets[k]
	if !ok {
		cfg.Unlock()
		return ipamapi.ErrBadPool
	}

	if address == nil || !p.Pool.Contains(address) {
		cfg.Unlock()
		return ipamapi.ErrInvalidRequest
	}

	c := p
	for c.Range != nil {
		k = c.ParentKey
		c = cfg.subnets[k]
	}
	cfg.Unlock()

	mask := p.Pool.Mask
	if p.Range != nil {
		mask = p.Range.Sub.Mask
	}
	h, err := types.GetHostPartIP(address, mask)
	if err != nil {
		return fmt.Errorf("failed to release address %s: %v", address.String(), err)
	}

	bm, err := cfg.alloc.retrieveBitmask(cfg.ds, k, c.Pool)
	if err != nil {
		return fmt.Errorf("could not find bitmask in datastore for %s on address %v release from pool %s: %v",
			k.String(), address, poolID, err)
	}
	return bm.Unset(ipToUint32(h))
}

// Release allows releasing the address from the specified address space
func (a *Allocator) Release(addrSpace AddressSpace, address net.IP) {
	var (
		space *bitseq.Handle
		sub   *net.IPNet
	)

	if address == nil {
		log.Debugf("Requested to remove nil address from address space %s", addrSpace)
		return
	}

	ver := getAddressVersion(address)
	if ver == v4 {
		address = address.To4()
	}

	// Find the subnet containing the address
	for _, subKey := range a.getSubnetList(addrSpace, ver) {
		sub = subKey.canonicalChildSubnet()
		if sub.Contains(address) {
			a.Lock()
			space = a.addresses[subKey]
			a.Unlock()
			break
		}
	}
	if space == nil {
		log.Debugf("Could not find subnet on address space %s containing %s on release", addrSpace, address.String())
		return
	}

	// Retrieve correspondent ordinal in the subnet
	hostPart, err := types.GetHostPartIP(address, sub.Mask)
	if err != nil {
		log.Warnf("Failed to release address %s on address space %s because of internal error: %v", address.String(), addrSpace, err)
		return
	}
	ordinal := ipToUint32(hostPart)

	// Release it
	if err := space.Unset(ordinal); err != nil {
		log.Warnf("Failed to release address %s on address space %s because of internal error: %v", address.String(), addrSpace, err)
	}
}

func (a *Allocator) getAddress(nw *net.IPNet, bitmask *bitseq.Handle, prefAddress net.IP, ipr *AddressRange) (net.IP, error) {
	var (
		ordinal uint64
		err     error
		base    *net.IPNet
	)

	base = types.GetIPNetCopy(nw)

	if bitmask.Unselected() <= 0 {
		return nil, ipamapi.ErrNoAvailableIPs
	}
	if ipr == nil && prefAddress == nil {
		ordinal, err = bitmask.SetAny()
	} else if prefAddress != nil {
		hostPart, e := types.GetHostPartIP(prefAddress, base.Mask)
		if e != nil {
			return nil, types.InternalErrorf("failed to allocate requested address %s: %v", prefAddress.String(), e)
		}
		ordinal = ipToUint64(types.GetMinimalIP(hostPart))
		err = bitmask.Set(ordinal)
	} else {
		ordinal, err = bitmask.SetAnyInRange(ipr.Start, ipr.End)
	}

	switch err {
	case nil:
		// Convert IP ordinal for this subnet into IP address
		return generateAddress(ordinal, base), nil
	case bitseq.ErrBitAllocated:
		return nil, ipamapi.ErrIPAlreadyAllocated
	case bitseq.ErrNoBitAvailable:
		return nil, ipamapi.ErrNoAvailableIPs
	default:
		return nil, err
	}
}

func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
	if n, err := controller.NetworkByName("bridge"); err == nil {
		if err = n.Delete(); err != nil {
			return fmt.Errorf("could not delete the default bridge network: %v", err)
		}
	}

	bridgeName := bridge.DefaultBridgeName
	if config.Bridge.Iface != "" {
		bridgeName = config.Bridge.Iface
	}
	netOption := map[string]string{
		bridge.BridgeName:         bridgeName,
		bridge.DefaultBridge:      strconv.FormatBool(true),
		netlabel.DriverMTU:        strconv.Itoa(config.Mtu),
		bridge.EnableIPMasquerade: strconv.FormatBool(config.Bridge.EnableIPMasq),
		bridge.EnableICC:          strconv.FormatBool(config.Bridge.InterContainerCommunication),
	}

	// --ip processing
	if config.Bridge.DefaultIP != nil {
		netOption[bridge.DefaultBindingIP] = config.Bridge.DefaultIP.String()
	}

	ipamV4Conf := libnetwork.IpamConf{}

	ipamV4Conf.AuxAddresses = make(map[string]string)

	if nw, _, err := ipamutils.ElectInterfaceAddresses(bridgeName); err == nil {
		ipamV4Conf.PreferredPool = nw.String()
		hip, _ := types.GetHostPartIP(nw.IP, nw.Mask)
		if hip.IsGlobalUnicast() {
			ipamV4Conf.Gateway = nw.IP.String()
		}
	}

	if config.Bridge.IP != "" {
		ipamV4Conf.PreferredPool = config.Bridge.IP
		ip, _, err := net.ParseCIDR(config.Bridge.IP)
		if err != nil {
			return err
		}
		ipamV4Conf.Gateway = ip.String()
	} else if bridgeName == bridge.DefaultBridgeName && ipamV4Conf.PreferredPool != "" {
		logrus.Infof("Default bridge (%s) is assigned with an IP address %s. Daemon option --bip can be used to set a preferred IP address", bridgeName, ipamV4Conf.PreferredPool)
	}

	if config.Bridge.FixedCIDR != "" {
		_, fCIDR, err := net.ParseCIDR(config.Bridge.FixedCIDR)
		if err != nil {
			return err
		}

		ipamV4Conf.SubPool = fCIDR.String()
	}

	if config.Bridge.DefaultGatewayIPv4 != nil {
		ipamV4Conf.AuxAddresses["DefaultGatewayIPv4"] = config.Bridge.DefaultGatewayIPv4.String()
	}

	var (
		ipamV6Conf     *libnetwork.IpamConf
		deferIPv6Alloc bool
	)
	if config.Bridge.FixedCIDRv6 != "" {
		_, fCIDRv6, err := net.ParseCIDR(config.Bridge.FixedCIDRv6)
		if err != nil {
			return err
		}

		// In case user has specified the daemon flag --fixed-cidr-v6 and the passed network has
		// at least 48 host bits, we need to guarantee the current behavior where the containers'
		// IPv6 addresses will be constructed based on the containers' interface MAC address.
		// We do so by telling libnetwork to defer the IPv6 address allocation for the endpoints
		// on this network until after the driver has created the endpoint and returned the
		// constructed address. Libnetwork will then reserve this address with the ipam driver.
		ones, _ := fCIDRv6.Mask.Size()
		deferIPv6Alloc = ones <= 80

		if ipamV6Conf == nil {
			ipamV6Conf = &libnetwork.IpamConf{AuxAddresses: make(map[string]string)}
		}
		ipamV6Conf.PreferredPool = fCIDRv6.String()
	}

	if config.Bridge.DefaultGatewayIPv6 != nil {
		if ipamV6Conf == nil {
			ipamV6Conf = &libnetwork.IpamConf{AuxAddresses: make(map[string]string)}
		}
		ipamV6Conf.AuxAddresses["DefaultGatewayIPv6"] = config.Bridge.DefaultGatewayIPv6.String()
	}

	v4Conf := []*libnetwork.IpamConf{&ipamV4Conf}
	v6Conf := []*libnetwork.IpamConf{}
	if ipamV6Conf != nil {
		v6Conf = append(v6Conf, ipamV6Conf)
	}
	// Initialize default network on "bridge" with the same name
	_, err := controller.NewNetwork("bridge", "bridge",
		libnetwork.NetworkOptionGeneric(options.Generic{
//.........这里部分代码省略.........

func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
	if n, err := controller.NetworkByName("bridge"); err == nil {
		if err = n.Delete(); err != nil {
			return fmt.Errorf("could not delete the default bridge network: %v", err)
		}
	}

	bridgeName := bridge.DefaultBridgeName
	if config.bridgeConfig.Iface != "" {
		bridgeName = config.bridgeConfig.Iface
	}
	netOption := map[string]string{
		bridge.BridgeName:    bridgeName,
		bridge.DefaultBridge: strconv.FormatBool(true),
		netlabel.DriverMTU:   strconv.Itoa(config.Mtu),
		bridge.EnableICC:     strconv.FormatBool(config.bridgeConfig.InterContainerCommunication),
	}

	// --ip processing
	if config.bridgeConfig.DefaultIP != nil {
		netOption[bridge.DefaultBindingIP] = config.bridgeConfig.DefaultIP.String()
	}

	var ipamV4Conf *libnetwork.IpamConf

	ipamV4Conf = &libnetwork.IpamConf{AuxAddresses: make(map[string]string)}

	nwList, _, err := netutils.ElectInterfaceAddresses(bridgeName)
	if err != nil {
		return errors.Wrap(err, "list bridge addresses failed")
	}

	nw := nwList[0]
	if len(nwList) > 1 && config.bridgeConfig.FixedCIDR != "" {
		_, fCIDR, err := net.ParseCIDR(config.bridgeConfig.FixedCIDR)
		if err != nil {
			return errors.Wrap(err, "parse CIDR failed")
		}
		// Iterate through in case there are multiple addresses for the bridge
		for _, entry := range nwList {
			if fCIDR.Contains(entry.IP) {
				nw = entry
				break
			}
		}
	}

	ipamV4Conf.PreferredPool = lntypes.GetIPNetCanonical(nw).String()
	hip, _ := lntypes.GetHostPartIP(nw.IP, nw.Mask)
	if hip.IsGlobalUnicast() {
		ipamV4Conf.Gateway = nw.IP.String()
	}

	if config.bridgeConfig.IP != "" {
		ipamV4Conf.PreferredPool = config.bridgeConfig.IP
		ip, _, err := net.ParseCIDR(config.bridgeConfig.IP)
		if err != nil {
			return err
		}
		ipamV4Conf.Gateway = ip.String()
	} else if bridgeName == bridge.DefaultBridgeName && ipamV4Conf.PreferredPool != "" {
		logrus.Infof("Default bridge (%s) is assigned with an IP address %s. Daemon option --bip can be used to set a preferred IP address", bridgeName, ipamV4Conf.PreferredPool)
	}

	if config.bridgeConfig.FixedCIDR != "" {
		_, fCIDR, err := net.ParseCIDR(config.bridgeConfig.FixedCIDR)
		if err != nil {
			return err
		}

		ipamV4Conf.SubPool = fCIDR.String()
	}

	if config.bridgeConfig.DefaultGatewayIPv4 != nil {
		ipamV4Conf.AuxAddresses["DefaultGatewayIPv4"] = config.bridgeConfig.DefaultGatewayIPv4.String()
	}

	v4Conf := []*libnetwork.IpamConf{ipamV4Conf}
	v6Conf := []*libnetwork.IpamConf{}

	// Initialize default network on "bridge" with the same name
	_, err = controller.NewNetwork("bridge", "bridge", "",
		libnetwork.NetworkOptionDriverOpts(netOption),
		libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf, nil),
		libnetwork.NetworkOptionDeferIPv6Alloc(false))
	if err != nil {
		return fmt.Errorf("Error creating default 'bridge' network: %v", err)
	}
	return nil
}

func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
	bridgeName := bridge.DefaultBridgeName
	if config.bridgeConfig.Iface != "" {
		bridgeName = config.bridgeConfig.Iface
	}
	netOption := map[string]string{
		bridge.BridgeName:         bridgeName,
		bridge.DefaultBridge:      strconv.FormatBool(true),
		netlabel.DriverMTU:        strconv.Itoa(config.Mtu),
		bridge.EnableIPMasquerade: strconv.FormatBool(config.bridgeConfig.EnableIPMasq),
		bridge.EnableICC:          strconv.FormatBool(config.bridgeConfig.InterContainerCommunication),
	}

	// --ip processing
	if config.bridgeConfig.DefaultIP != nil {
		netOption[bridge.DefaultBindingIP] = config.bridgeConfig.DefaultIP.String()
	}

	var (
		ipamV4Conf *libnetwork.IpamConf
		ipamV6Conf *libnetwork.IpamConf
	)

	ipamV4Conf = &libnetwork.IpamConf{AuxAddresses: make(map[string]string)}

	nwList, nw6List, err := netutils.ElectInterfaceAddresses(bridgeName)
	if err != nil {
		return errors.Wrap(err, "list bridge addresses failed")
	}

	nw := nwList[0]
	if len(nwList) > 1 && config.bridgeConfig.FixedCIDR != "" {
		_, fCIDR, err := net.ParseCIDR(config.bridgeConfig.FixedCIDR)
		if err != nil {
			return errors.Wrap(err, "parse CIDR failed")
		}
		// Iterate through in case there are multiple addresses for the bridge
		for _, entry := range nwList {
			if fCIDR.Contains(entry.IP) {
				nw = entry
				break
			}
		}
	}

	ipamV4Conf.PreferredPool = lntypes.GetIPNetCanonical(nw).String()
	hip, _ := lntypes.GetHostPartIP(nw.IP, nw.Mask)
	if hip.IsGlobalUnicast() {
		ipamV4Conf.Gateway = nw.IP.String()
	}

	if config.bridgeConfig.IP != "" {
		ipamV4Conf.PreferredPool = config.bridgeConfig.IP
		ip, _, err := net.ParseCIDR(config.bridgeConfig.IP)
		if err != nil {
			return err
		}
		ipamV4Conf.Gateway = ip.String()
	} else if bridgeName == bridge.DefaultBridgeName && ipamV4Conf.PreferredPool != "" {
		logrus.Infof("Default bridge (%s) is assigned with an IP address %s. Daemon option --bip can be used to set a preferred IP address", bridgeName, ipamV4Conf.PreferredPool)
	}

	if config.bridgeConfig.FixedCIDR != "" {
		_, fCIDR, err := net.ParseCIDR(config.bridgeConfig.FixedCIDR)
		if err != nil {
			return err
		}

		ipamV4Conf.SubPool = fCIDR.String()
	}

	if config.bridgeConfig.DefaultGatewayIPv4 != nil {
		ipamV4Conf.AuxAddresses["DefaultGatewayIPv4"] = config.bridgeConfig.DefaultGatewayIPv4.String()
	}

	var deferIPv6Alloc bool
	if config.bridgeConfig.FixedCIDRv6 != "" {
		_, fCIDRv6, err := net.ParseCIDR(config.bridgeConfig.FixedCIDRv6)
		if err != nil {
			return err
		}

		// In case user has specified the daemon flag --fixed-cidr-v6 and the passed network has
		// at least 48 host bits, we need to guarantee the current behavior where the containers'
		// IPv6 addresses will be constructed based on the containers' interface MAC address.
		// We do so by telling libnetwork to defer the IPv6 address allocation for the endpoints
		// on this network until after the driver has created the endpoint and returned the
		// constructed address. Libnetwork will then reserve this address with the ipam driver.
		ones, _ := fCIDRv6.Mask.Size()
		deferIPv6Alloc = ones <= 80

		if ipamV6Conf == nil {
			ipamV6Conf = &libnetwork.IpamConf{AuxAddresses: make(map[string]string)}
		}
		ipamV6Conf.PreferredPool = fCIDRv6.String()

		// In case the --fixed-cidr-v6 is specified and the current docker0 bridge IPv6
		// address belongs to the same network, we need to inform libnetwork about it, so
		// that it can be reserved with IPAM and it will not be given away to somebody else
		for _, nw6 := range nw6List {
//.........这里部分代码省略.........

func initBridgeDriver(controller libnetwork.NetworkController, config *Config) error {
	if n, err := controller.NetworkByName("bridge"); err == nil {
		if err = n.Delete(); err != nil {
			return fmt.Errorf("could not delete the default bridge network: %v", err)
		}
	}

	bridgeName := bridge.DefaultBridgeName
	if config.Bridge.Iface != "" {
		bridgeName = config.Bridge.Iface
	}
	netOption := map[string]string{
		bridge.BridgeName:         bridgeName,
		bridge.DefaultBridge:      strconv.FormatBool(true),
		netlabel.DriverMTU:        strconv.Itoa(config.Mtu),
		bridge.EnableIPMasquerade: strconv.FormatBool(config.Bridge.EnableIPMasq),
		bridge.EnableICC:          strconv.FormatBool(config.Bridge.InterContainerCommunication),
	}

	// --ip processing
	if config.Bridge.DefaultIP != nil {
		netOption[bridge.DefaultBindingIP] = config.Bridge.DefaultIP.String()
	}

	ipamV4Conf := libnetwork.IpamConf{}

	ipamV4Conf.AuxAddresses = make(map[string]string)

	if nw, _, err := ipamutils.ElectInterfaceAddresses(bridgeName); err == nil {
		ipamV4Conf.PreferredPool = nw.String()
		hip, _ := types.GetHostPartIP(nw.IP, nw.Mask)
		if hip.IsGlobalUnicast() {
			ipamV4Conf.Gateway = nw.IP.String()
		}
	}

	if config.Bridge.IP != "" {
		ipamV4Conf.PreferredPool = config.Bridge.IP
		ip, _, err := net.ParseCIDR(config.Bridge.IP)
		if err != nil {
			return err
		}
		ipamV4Conf.Gateway = ip.String()
	}

	if config.Bridge.FixedCIDR != "" {
		_, fCIDR, err := net.ParseCIDR(config.Bridge.FixedCIDR)
		if err != nil {
			return err
		}

		ipamV4Conf.SubPool = fCIDR.String()
	}

	if config.Bridge.DefaultGatewayIPv4 != nil {
		ipamV4Conf.AuxAddresses["DefaultGatewayIPv4"] = config.Bridge.DefaultGatewayIPv4.String()
	}

	var ipamV6Conf *libnetwork.IpamConf
	if config.Bridge.FixedCIDRv6 != "" {
		_, fCIDRv6, err := net.ParseCIDR(config.Bridge.FixedCIDRv6)
		if err != nil {
			return err
		}
		if ipamV6Conf == nil {
			ipamV6Conf = &libnetwork.IpamConf{}
		}
		ipamV6Conf.PreferredPool = fCIDRv6.String()
	}

	if config.Bridge.DefaultGatewayIPv6 != nil {
		if ipamV6Conf == nil {
			ipamV6Conf = &libnetwork.IpamConf{}
		}
		ipamV6Conf.AuxAddresses["DefaultGatewayIPv6"] = config.Bridge.DefaultGatewayIPv6.String()
	}

	v4Conf := []*libnetwork.IpamConf{&ipamV4Conf}
	v6Conf := []*libnetwork.IpamConf{}
	if ipamV6Conf != nil {
		v6Conf = append(v6Conf, ipamV6Conf)
	}
	// Initialize default network on "bridge" with the same name
	_, err := controller.NewNetwork("bridge", "bridge",
		libnetwork.NetworkOptionGeneric(options.Generic{
			netlabel.GenericData: netOption,
			netlabel.EnableIPv6:  config.Bridge.EnableIPv6,
		}),
		libnetwork.NetworkOptionIpam("default", "", v4Conf, v6Conf))
	if err != nil {
		return fmt.Errorf("Error creating default \"bridge\" network: %v", err)
	}
	return nil
}