Golang InterfaceInfo.CIDR方法代码示例

func (env *maasEnviron) deviceInterfaceInfo(deviceID instance.Id, nameToParentName map[string]string) ([]network.InterfaceInfo, error) {
	interfaces, err := env.deviceInterfaces(deviceID)
	if err != nil {
		return nil, errors.Trace(err)
	}

	interfaceInfo := make([]network.InterfaceInfo, 0, len(interfaces))
	for _, nic := range interfaces {
		nicInfo := network.InterfaceInfo{
			InterfaceName:       nic.Name,
			InterfaceType:       network.EthernetInterface,
			MACAddress:          nic.MACAddress,
			MTU:                 nic.EffectveMTU,
			VLANTag:             nic.VLAN.VID,
			ProviderId:          network.Id(strconv.Itoa(nic.ID)),
			ProviderVLANId:      network.Id(strconv.Itoa(nic.VLAN.ID)),
			Disabled:            !nic.Enabled,
			NoAutoStart:         !nic.Enabled,
			ParentInterfaceName: nameToParentName[nic.Name],
		}

		if len(nic.Links) == 0 {
			logger.Debugf("device %q interface %q has no links", deviceID, nic.Name)
			interfaceInfo = append(interfaceInfo, nicInfo)
			continue
		}

		for _, link := range nic.Links {
			nicInfo.ConfigType = maasLinkToInterfaceConfigType(string(link.Mode))

			if link.IPAddress == "" {
				logger.Debugf("device %q interface %q has no address", deviceID, nic.Name)
				interfaceInfo = append(interfaceInfo, nicInfo)
				continue
			}

			if link.Subnet == nil {
				logger.Debugf("device %q interface %q link %d missing subnet", deviceID, nic.Name, link.ID)
				interfaceInfo = append(interfaceInfo, nicInfo)
				continue
			}

			nicInfo.CIDR = link.Subnet.CIDR
			nicInfo.Address = network.NewAddressOnSpace(link.Subnet.Space, link.IPAddress)
			nicInfo.ProviderSubnetId = network.Id(strconv.Itoa(link.Subnet.ID))
			nicInfo.ProviderAddressId = network.Id(strconv.Itoa(link.ID))
			if link.Subnet.GatewayIP != "" {
				nicInfo.GatewayAddress = network.NewAddressOnSpace(link.Subnet.Space, link.Subnet.GatewayIP)
			}
			if len(link.Subnet.DNSServers) > 0 {
				nicInfo.DNSServers = network.NewAddressesOnSpace(link.Subnet.Space, link.Subnet.DNSServers...)
			}

			interfaceInfo = append(interfaceInfo, nicInfo)
		}
	}
	logger.Debugf("device %q has interface info: %+v", deviceID, interfaceInfo)
	return interfaceInfo, nil
}

func (p *ProvisionerAPI) prepareOrGetContainerInterfaceInfo(args params.Entities, maintain bool) (params.MachineNetworkConfigResults, error) {
	result := params.MachineNetworkConfigResults{
		Results: make([]params.MachineNetworkConfigResult, len(args.Entities)),
	}

	netEnviron, hostMachine, canAccess, err := p.prepareContainerAccessEnvironment()
	if err != nil {
		return result, errors.Trace(err)
	}
	instId, err := hostMachine.InstanceId()
	if errors.IsNotProvisioned(err) {
		err = errors.NotProvisionedf("cannot prepare container network config: host machine %q", hostMachine)
		return result, err
	} else if err != nil {
		return result, errors.Trace(err)
	}

	for i, entity := range args.Entities {
		machineTag, err := names.ParseMachineTag(entity.Tag)
		if err != nil {
			result.Results[i].Error = common.ServerError(err)
			continue
		}
		// The auth function (canAccess) checks that the machine is a
		// top level machine (we filter those out next) or that the
		// machine has the host as a parent.
		container, err := p.getMachine(canAccess, machineTag)
		if err != nil {
			result.Results[i].Error = common.ServerError(err)
			continue
		} else if !container.IsContainer() {
			err = errors.Errorf("cannot prepare network config for %q: not a container", machineTag)
			result.Results[i].Error = common.ServerError(err)
			continue
		} else if ciid, cerr := container.InstanceId(); maintain == true && cerr == nil {
			// Since we want to configure and create NICs on the
			// container before it starts, it must also be not
			// provisioned yet.
			err = errors.Errorf("container %q already provisioned as %q", container, ciid)
			result.Results[i].Error = common.ServerError(err)
			continue
		} else if cerr != nil && !errors.IsNotProvisioned(cerr) {
			// Any other error needs to be reported.
			result.Results[i].Error = common.ServerError(cerr)
			continue
		}

		if err := hostMachine.SetContainerLinkLayerDevices(container); err != nil {
			result.Results[i].Error = common.ServerError(err)
			continue
		}

		containerDevices, err := container.AllLinkLayerDevices()
		if err != nil {
			result.Results[i].Error = common.ServerError(err)
			continue
		}

		preparedInfo := make([]network.InterfaceInfo, len(containerDevices))
		preparedOK := true
		for j, device := range containerDevices {
			parentDevice, err := device.ParentDevice()
			if err != nil || parentDevice == nil {
				err = errors.Errorf(
					"cannot get parent %q of container device %q: %v",
					device.ParentName(), device.Name(), err,
				)
				result.Results[i].Error = common.ServerError(err)
				preparedOK = false
				break
			}
			parentAddrs, err := parentDevice.Addresses()
			if err != nil {
				result.Results[i].Error = common.ServerError(err)
				preparedOK = false
				break
			}

			info := network.InterfaceInfo{
				InterfaceName:       device.Name(),
				MACAddress:          device.MACAddress(),
				ConfigType:          network.ConfigManual,
				InterfaceType:       network.InterfaceType(device.Type()),
				NoAutoStart:         !device.IsAutoStart(),
				Disabled:            !device.IsUp(),
				MTU:                 int(device.MTU()),
				ParentInterfaceName: parentDevice.Name(),
			}

			if len(parentAddrs) > 0 {
				logger.Infof("host machine device %q has addresses %v", parentDevice.Name(), parentAddrs)

				firstAddress := parentAddrs[0]
				parentDeviceSubnet, err := firstAddress.Subnet()
				if err != nil {
					err = errors.Annotatef(err,
						"cannot get subnet %q used by address %q of host machine device %q",
						firstAddress.SubnetCIDR(), firstAddress.Value(), parentDevice.Name(),
					)
					result.Results[i].Error = common.ServerError(err)
//.........这里部分代码省略.........

// maasObjectNetworkInterfaces implements environs.NetworkInterfaces() using the
// new (1.9+) MAAS API, parsing the node details JSON embedded into the given
// maasObject to extract all the relevant InterfaceInfo fields. It returns an
// error satisfying errors.IsNotSupported() if it cannot find the required
// "interface_set" node details field.
func maasObjectNetworkInterfaces(maasObject *gomaasapi.MAASObject, subnetsMap map[string]network.Id) ([]network.InterfaceInfo, error) {
	interfaceSet, ok := maasObject.GetMap()["interface_set"]
	if !ok || interfaceSet.IsNil() {
		// This means we're using an older MAAS API.
		return nil, errors.NotSupportedf("interface_set")
	}

	// TODO(dimitern): Change gomaasapi JSONObject to give access to the raw
	// JSON bytes directly, rather than having to do call MarshalJSON just so
	// the result can be unmarshaled from it.
	//
	// LKK Card: https://canonical.leankit.com/Boards/View/101652562/119311323

	rawBytes, err := interfaceSet.MarshalJSON()
	if err != nil {
		return nil, errors.Annotate(err, "cannot get interface_set JSON bytes")
	}

	interfaces, err := parseInterfaces(rawBytes)
	if err != nil {
		return nil, errors.Trace(err)
	}

	infos := make([]network.InterfaceInfo, 0, len(interfaces))
	for i, iface := range interfaces {

		// The below works for all types except bonds and their members.
		parentName := strings.Join(iface.Parents, "")
		var nicType network.InterfaceType
		switch iface.Type {
		case typePhysical:
			nicType = network.EthernetInterface
			children := strings.Join(iface.Children, "")
			if parentName == "" && len(iface.Children) == 1 && strings.HasPrefix(children, "bond") {
				// FIXME: Verify the bond exists, regardless of its name.
				// This is a bond member, set the parent correctly (from
				// Juju's perspective) - to the bond itself.
				parentName = children
			}
		case typeBond:
			parentName = ""
			nicType = network.BondInterface
		case typeVLAN:
			nicType = network.VLAN_8021QInterface
		}

		nicInfo := network.InterfaceInfo{
			DeviceIndex:         i,
			MACAddress:          iface.MACAddress,
			ProviderId:          network.Id(fmt.Sprintf("%v", iface.ID)),
			VLANTag:             iface.VLAN.VID,
			InterfaceName:       iface.Name,
			InterfaceType:       nicType,
			ParentInterfaceName: parentName,
			Disabled:            !iface.Enabled,
			NoAutoStart:         !iface.Enabled,
		}

		for _, link := range iface.Links {
			switch link.Mode {
			case modeUnknown:
				nicInfo.ConfigType = network.ConfigUnknown
			case modeDHCP:
				nicInfo.ConfigType = network.ConfigDHCP
			case modeStatic, modeLinkUp:
				nicInfo.ConfigType = network.ConfigStatic
			default:
				nicInfo.ConfigType = network.ConfigManual
			}

			if link.IPAddress == "" {
				logger.Debugf("interface %q has no address", iface.Name)
			} else {
				// We set it here initially without a space, just so we don't
				// lose it when we have no linked subnet below.
				nicInfo.Address = network.NewAddress(link.IPAddress)
				nicInfo.ProviderAddressId = network.Id(fmt.Sprintf("%v", link.ID))
			}

			if link.Subnet == nil {
				logger.Debugf("interface %q link %d missing subnet", iface.Name, link.ID)
				infos = append(infos, nicInfo)
				continue
			}

			sub := link.Subnet
			nicInfo.CIDR = sub.CIDR
			nicInfo.ProviderSubnetId = network.Id(fmt.Sprintf("%v", sub.ID))
			nicInfo.ProviderVLANId = network.Id(fmt.Sprintf("%v", sub.VLAN.ID))

			// Now we know the subnet and space, we can update the address to
			// store the space with it.
			nicInfo.Address = network.NewAddressOnSpace(sub.Space, link.IPAddress)
			spaceId, ok := subnetsMap[string(sub.CIDR)]
			if !ok {
//.........这里部分代码省略.........

func maas2NetworkInterfaces(instance *maas2Instance, subnetsMap map[string]network.Id) ([]network.InterfaceInfo, error) {
	interfaces := instance.machine.InterfaceSet()
	infos := make([]network.InterfaceInfo, 0, len(interfaces))
	for i, iface := range interfaces {

		// The below works for all types except bonds and their members.
		parentName := strings.Join(iface.Parents(), "")
		var nicType network.InterfaceType
		switch maasInterfaceType(iface.Type()) {
		case typePhysical:
			nicType = network.EthernetInterface
			children := strings.Join(iface.Children(), "")
			if parentName == "" && len(iface.Children()) == 1 && strings.HasPrefix(children, "bond") {
				// FIXME: Verify the bond exists, regardless of its name.
				// This is a bond member, set the parent correctly (from
				// Juju's perspective) - to the bond itself.
				parentName = children
			}
		case typeBond:
			parentName = ""
			nicType = network.BondInterface
		case typeVLAN:
			nicType = network.VLAN_8021QInterface
		}

		vlanTag := 0
		if iface.VLAN() != nil {
			vlanTag = iface.VLAN().VID()
		}
		nicInfo := network.InterfaceInfo{
			DeviceIndex:         i,
			MACAddress:          iface.MACAddress(),
			ProviderId:          network.Id(fmt.Sprintf("%v", iface.ID())),
			VLANTag:             vlanTag,
			InterfaceName:       iface.Name(),
			InterfaceType:       nicType,
			ParentInterfaceName: parentName,
			Disabled:            !iface.Enabled(),
			NoAutoStart:         !iface.Enabled(),
		}

		for _, link := range iface.Links() {
			switch maasLinkMode(link.Mode()) {
			case modeUnknown:
				nicInfo.ConfigType = network.ConfigUnknown
			case modeDHCP:
				nicInfo.ConfigType = network.ConfigDHCP
			case modeStatic, modeLinkUp:
				nicInfo.ConfigType = network.ConfigStatic
			default:
				nicInfo.ConfigType = network.ConfigManual
			}

			if link.IPAddress() == "" {
				logger.Debugf("interface %q has no address", iface.Name())
			} else {
				// We set it here initially without a space, just so we don't
				// lose it when we have no linked subnet below.
				nicInfo.Address = network.NewAddress(link.IPAddress())
				nicInfo.ProviderAddressId = network.Id(fmt.Sprintf("%v", link.ID()))
			}

			if link.Subnet() == nil {
				logger.Debugf("interface %q link %d missing subnet", iface.Name(), link.ID())
				infos = append(infos, nicInfo)
				continue
			}

			sub := link.Subnet()
			nicInfo.CIDR = sub.CIDR()
			nicInfo.ProviderSubnetId = network.Id(fmt.Sprintf("%v", sub.ID()))
			nicInfo.ProviderVLANId = network.Id(fmt.Sprintf("%v", sub.VLAN().ID()))

			// Now we know the subnet and space, we can update the address to
			// store the space with it.
			nicInfo.Address = network.NewAddressOnSpace(sub.Space(), link.IPAddress())
			spaceId, ok := subnetsMap[string(sub.CIDR())]
			if !ok {
				// The space we found is not recognised, no
				// provider id available.
				logger.Warningf("interface %q link %d has unrecognised space %q", iface.Name(), link.ID(), sub.Space())
			} else {
				nicInfo.Address.SpaceProviderId = spaceId
				nicInfo.ProviderSpaceId = spaceId
			}

			gwAddr := network.NewAddressOnSpace(sub.Space(), sub.Gateway())
			nicInfo.DNSServers = network.NewAddressesOnSpace(sub.Space(), sub.DNSServers()...)
			if ok {
				gwAddr.SpaceProviderId = spaceId
				for i := range nicInfo.DNSServers {
					nicInfo.DNSServers[i].SpaceProviderId = spaceId
				}
			}
			nicInfo.GatewayAddress = gwAddr
			nicInfo.MTU = sub.VLAN().MTU()

			// Each link we represent as a separate InterfaceInfo, but with the
			// same name and device index, just different addres, subnet, etc.
			infos = append(infos, nicInfo)
//.........这里部分代码省略.........

func (env *maasEnviron) deviceInterfaceInfo2(deviceID string, nameToParentName map[string]string) ([]network.InterfaceInfo, error) {
	args := gomaasapi.DevicesArgs{SystemIDs: []string{deviceID}}
	devices, err := env.maasController.Devices(args)
	if err != nil {
		return nil, errors.Trace(err)
	}
	if len(devices) != 1 {
		return nil, errors.Errorf("unexpected response requesting device %v: %v", deviceID, devices)
	}
	interfaces := devices[0].InterfaceSet()

	interfaceInfo := make([]network.InterfaceInfo, 0, len(interfaces))
	for _, nic := range interfaces {
		vlanId := 0
		vlanVid := 0
		vlan := nic.VLAN()
		if vlan != nil {
			vlanId = vlan.ID()
			vlanVid = vlan.VID()
		}
		nicInfo := network.InterfaceInfo{
			InterfaceName:       nic.Name(),
			InterfaceType:       network.EthernetInterface,
			MACAddress:          nic.MACAddress(),
			MTU:                 nic.EffectiveMTU(),
			VLANTag:             vlanVid,
			ProviderId:          network.Id(strconv.Itoa(nic.ID())),
			ProviderVLANId:      network.Id(strconv.Itoa(vlanId)),
			Disabled:            !nic.Enabled(),
			NoAutoStart:         !nic.Enabled(),
			ParentInterfaceName: nameToParentName[nic.Name()],
		}

		if len(nic.Links()) == 0 {
			logger.Debugf("device %q interface %q has no links", deviceID, nic.Name())
			interfaceInfo = append(interfaceInfo, nicInfo)
			continue
		}

		for _, link := range nic.Links() {
			nicInfo.ConfigType = maasLinkToInterfaceConfigType(link.Mode())

			subnet := link.Subnet()
			if link.IPAddress() == "" || subnet == nil {
				logger.Debugf("device %q interface %q has no address", deviceID, nic.Name())
				interfaceInfo = append(interfaceInfo, nicInfo)
				continue
			}

			nicInfo.CIDR = subnet.CIDR()
			nicInfo.Address = network.NewAddressOnSpace(subnet.Space(), link.IPAddress())
			nicInfo.ProviderSubnetId = network.Id(strconv.Itoa(subnet.ID()))
			nicInfo.ProviderAddressId = network.Id(strconv.Itoa(link.ID()))
			if subnet.Gateway() != "" {
				nicInfo.GatewayAddress = network.NewAddressOnSpace(subnet.Space(), subnet.Gateway())
			}
			if len(subnet.DNSServers()) > 0 {
				nicInfo.DNSServers = network.NewAddressesOnSpace(subnet.Space(), subnet.DNSServers()...)
			}

			interfaceInfo = append(interfaceInfo, nicInfo)
		}
	}
	logger.Debugf("device %q has interface info: %+v", deviceID, interfaceInfo)
	return interfaceInfo, nil
}

// legacyNetworkInterfaces implements Environ.NetworkInterfaces() on MAAS 1.8 and earlier.
func (environ *maasEnviron) legacyNetworkInterfaces(instId instance.Id) ([]network.InterfaceInfo, error) {
	instances, err := environ.acquiredInstances([]instance.Id{instId})
	if err != nil {
		return nil, errors.Annotatef(err, "could not find instance %q", instId)
	}
	if len(instances) == 0 {
		return nil, errors.NotFoundf("instance %q", instId)
	}
	inst := instances[0]
	interfaces, err := environ.getInstanceNetworkInterfaces(inst)
	if err != nil {
		return nil, errors.Annotatef(err, "failed to get instance %q network interfaces", instId)
	}

	networks, err := environ.getInstanceNetworks(inst)
	if err != nil {
		return nil, errors.Annotatef(err, "failed to get instance %q subnets", instId)
	}

	macToNetworksMap := make(map[string][]networkDetails)
	for _, network := range networks {
		macs, err := environ.listConnectedMacs(network)
		if err != nil {
			return nil, errors.Trace(err)
		}
		for _, mac := range macs {
			if networks, found := macToNetworksMap[mac]; found {
				macToNetworksMap[mac] = append(networks, network)
			} else {
				macToNetworksMap[mac] = append([]networkDetails(nil), network)
			}
		}
	}

	result := []network.InterfaceInfo{}
	for serial, iface := range interfaces {
		deviceIndex := iface.DeviceIndex
		interfaceName := iface.InterfaceName
		disabled := iface.Disabled

		ifaceInfo := network.InterfaceInfo{
			DeviceIndex:   deviceIndex,
			InterfaceName: interfaceName,
			Disabled:      disabled,
			NoAutoStart:   disabled,
			MACAddress:    serial,
			ConfigType:    network.ConfigDHCP,
		}
		allDetails, ok := macToNetworksMap[serial]
		if !ok {
			logger.Debugf("no subnet information for MAC address %q, instance %q", serial, instId)
			continue
		}
		for _, details := range allDetails {
			ifaceInfo.VLANTag = details.VLANTag
			ifaceInfo.ProviderSubnetId = network.Id(details.Name)
			mask := net.IPMask(net.ParseIP(details.Mask))
			cidr := net.IPNet{
				IP:   net.ParseIP(details.IP),
				Mask: mask,
			}
			ifaceInfo.CIDR = cidr.String()
			ifaceInfo.Address = network.NewAddress(cidr.IP.String())
			if details.DefaultGateway != "" {
				ifaceInfo.GatewayAddress = network.NewAddress(details.DefaultGateway)
			}
			result = append(result, ifaceInfo)
		}
	}
	return result, nil
}

// maasObjectNetworkInterfaces implements environs.NetworkInterfaces() using the
// new (1.9+) MAAS API, parsing the node details JSON embedded into the given
// maasObject to extract all the relevant InterfaceInfo fields. It returns an
// error satisfying errors.IsNotSupported() if it cannot find the required
// "interface_set" node details field.
func maasObjectNetworkInterfaces(maasObject *gomaasapi.MAASObject) ([]network.InterfaceInfo, error) {

	interfaceSet, ok := maasObject.GetMap()["interface_set"]
	if !ok || interfaceSet.IsNil() {
		// This means we're using an older MAAS API.
		return nil, errors.NotSupportedf("interface_set")
	}

	// TODO(dimitern): Change gomaasapi JSONObject to give access to the raw
	// JSON bytes directly, rather than having to do call MarshalJSON just so
	// the result can be unmarshaled from it.
	//
	// LKK Card: https://canonical.leankit.com/Boards/View/101652562/119311323

	rawBytes, err := interfaceSet.MarshalJSON()
	if err != nil {
		return nil, errors.Annotate(err, "cannot get interface_set JSON bytes")
	}

	interfaces, err := parseInterfaces(rawBytes)
	if err != nil {
		return nil, errors.Trace(err)
	}

	infos := make([]network.InterfaceInfo, 0, len(interfaces))
	for i, iface := range interfaces {
		nicInfo := network.InterfaceInfo{
			DeviceIndex:   i,
			MACAddress:    iface.MACAddress,
			ProviderId:    network.Id(fmt.Sprintf("%v", iface.ID)),
			VLANTag:       iface.VLAN.VID,
			InterfaceName: iface.Name,
			Disabled:      !iface.Enabled,
			NoAutoStart:   !iface.Enabled,
			// This is not needed anymore, but the provisioner still validates it's set.
			NetworkName: network.DefaultPrivate,
		}

		for _, link := range iface.Links {
			switch link.Mode {
			case modeUnknown:
				nicInfo.ConfigType = network.ConfigUnknown
			case modeDHCP:
				nicInfo.ConfigType = network.ConfigDHCP
			case modeStatic, modeLinkUp:
				nicInfo.ConfigType = network.ConfigStatic
			default:
				nicInfo.ConfigType = network.ConfigManual
			}

			if link.IPAddress == "" {
				logger.Warningf("interface %q has no address", iface.Name)
			} else {
				// We set it here initially without a space, just so we don't
				// lose it when we have no linked subnet below.
				nicInfo.Address = network.NewAddress(link.IPAddress)
			}

			if link.Subnet == nil {
				logger.Warningf("interface %q link %d missing subnet", iface.Name, link.ID)
				infos = append(infos, nicInfo)
				continue
			}

			sub := link.Subnet
			nicInfo.CIDR = sub.CIDR
			nicInfo.ProviderSubnetId = network.Id(fmt.Sprintf("%v", sub.ID))

			// Now we know the subnet and space, we can update the address to
			// store the space with it.
			nicInfo.Address = network.NewAddressOnSpace(sub.Space, link.IPAddress)

			gwAddr := network.NewAddressOnSpace(sub.Space, sub.GatewayIP)
			nicInfo.GatewayAddress = gwAddr

			nicInfo.DNSServers = network.NewAddressesOnSpace(sub.Space, sub.DNSServers...)
			nicInfo.MTU = sub.VLAN.MTU

			// Each link we represent as a separate InterfaceInfo, but with the
			// same name and device index, just different addres, subnet, etc.
			infos = append(infos, nicInfo)
		}
	}
	return infos, nil
}