cloudpods/pkg/compute/models/networks.go

// Copyright 2019 Yunion
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package models

import (
	"context"
	"database/sql"
	"fmt"
	"math"
	"math/big"
	"sort"
	"strings"
	"time"

	"yunion.io/x/cloudmux/pkg/cloudprovider"
	"yunion.io/x/jsonutils"
	"yunion.io/x/log"
	"yunion.io/x/pkg/errors"
	"yunion.io/x/pkg/gotypes"
	"yunion.io/x/pkg/tristate"
	"yunion.io/x/pkg/util/billing"
	"yunion.io/x/pkg/util/compare"
	"yunion.io/x/pkg/util/netutils"
	"yunion.io/x/pkg/util/rand"
	"yunion.io/x/pkg/util/rbacscope"
	"yunion.io/x/pkg/util/regutils"
	"yunion.io/x/pkg/util/sets"
	"yunion.io/x/pkg/utils"
	"yunion.io/x/sqlchemy"

	"yunion.io/x/onecloud/pkg/apis"
	api "yunion.io/x/onecloud/pkg/apis/compute"
	"yunion.io/x/onecloud/pkg/cloudcommon/consts"
	"yunion.io/x/onecloud/pkg/cloudcommon/db"
	"yunion.io/x/onecloud/pkg/cloudcommon/db/lockman"
	"yunion.io/x/onecloud/pkg/cloudcommon/db/taskman"
	"yunion.io/x/onecloud/pkg/cloudcommon/notifyclient"
	"yunion.io/x/onecloud/pkg/cloudcommon/policy"
	"yunion.io/x/onecloud/pkg/cloudcommon/types"
	"yunion.io/x/onecloud/pkg/cloudcommon/validators"
	"yunion.io/x/onecloud/pkg/compute/options"
	"yunion.io/x/onecloud/pkg/httperrors"
	"yunion.io/x/onecloud/pkg/mcclient"
	"yunion.io/x/onecloud/pkg/mcclient/auth"
	"yunion.io/x/onecloud/pkg/util/logclient"
	"yunion.io/x/onecloud/pkg/util/rbacutils"
	"yunion.io/x/onecloud/pkg/util/stringutils2"
)

type SNetworkManager struct {
	db.SSharableVirtualResourceBaseManager
	db.SExternalizedResourceBaseManager
	SWireResourceBaseManager
}

var NetworkManager *SNetworkManager

func GetNetworkManager() *SNetworkManager {
	if NetworkManager != nil {
		return NetworkManager
	}
	NetworkManager = &SNetworkManager{
		SSharableVirtualResourceBaseManager: db.NewSharableVirtualResourceBaseManager(
			SNetwork{},
			"networks_tbl",
			"network",
			"networks",
		),
	}
	NetworkManager.SetVirtualObject(NetworkManager)
	return NetworkManager
}

func init() {
	GetNetworkManager()
}

type SNetwork struct {
	db.SSharableVirtualResourceBase
	db.SExternalizedResourceBase
	SWireResourceBase

	IfnameHint string `width:"9" charset:"ascii" nullable:"true" list:"user" create:"optional"`

	// 起始IP地址
	GuestIpStart string `width:"16" charset:"ascii" nullable:"true" list:"user" update:"user" create:"optional"`
	// 结束IP地址
	GuestIpEnd string `width:"16" charset:"ascii" nullable:"true" list:"user" update:"user" create:"optional"`
	// 掩码
	GuestIpMask int8 `nullable:"true" list:"user" update:"user" create:"optional"`
	// 网关地址
	GuestGateway string `width:"16" charset:"ascii" nullable:"true" list:"user" update:"user" create:"optional"`
	// DNS, allow multiple dns, seperated by ","
	GuestDns string `width:"64" charset:"ascii" nullable:"true" list:"user" update:"user" create:"optional"`
	// allow multiple dhcp, seperated by ","
	GuestDhcp string `width:"64" charset:"ascii" nullable:"true" list:"user" update:"user" create:"optional"`
	// allow mutiple ntp, seperated by ","
	GuestNtp string `width:"64" charset:"ascii" nullable:"true" list:"user" update:"user" create:"optional"`

	// search domain
	GuestDomain string `width:"128" charset:"ascii" nullable:"true" get:"user" update:"user"`

	// 起始IPv6地址
	GuestIp6Start string `width:"64" charset:"ascii" nullable:"true" list:"user" update:"user" create:"optional"`
	// 结束IPv6地址
	GuestIp6End string `width:"64" charset:"ascii" nullable:"true" list:"user" update:"user" create:"optional"`
	// IPv6子网掩码
	GuestIp6Mask uint8 `nullable:"true" list:"user" update:"user" create:"optional"`
	// IPv6网关
	GuestGateway6 string `width:"64" charset:"ascii" nullable:"true" list:"user" update:"user" create:"optional"`
	// IPv6域名服务器
	// GuestDns6 string `width:"64" charset:"ascii" nullable:"true"`

	// GuestDomain6 string `width:"128" charset:"ascii" nullable:"true"`

	VlanId int `nullable:"false" default:"1" list:"user" update:"user" create:"optional"`

	// 服务器类型
	// example: server
	ServerType api.TNetworkType `width:"16" charset:"ascii" default:"guest" nullable:"true" list:"user" update:"admin" create:"optional"`

	// 分配策略
	AllocPolicy string `width:"16" charset:"ascii" nullable:"true" get:"user" update:"user" create:"optional"`

	AllocTimoutSeconds int `default:"0" nullable:"true" get:"admin"`

	// 该网段是否用于自动分配IP地址，如果为false，则用户需要明确选择该网段，才会使用该网段分配IP，
	// 如果为true，则用户不指定网段时，则自动从该值为true的网络中选择一个分配地址
	IsAutoAlloc tristate.TriState `list:"user" get:"user" update:"user" create:"optional"`

	// 线路类型
	BgpType string `width:"64" charset:"utf8" nullable:"false" list:"user" get:"user" update:"user" create:"optional"`
}

func (manager *SNetworkManager) GetContextManagers() [][]db.IModelManager {
	return [][]db.IModelManager{
		{WireManager},
	}
}

func (snet *SNetwork) getMtu() int16 {
	baseMtu := options.Options.DefaultMtu

	wire, _ := snet.GetWire()
	if wire != nil {
		if IsOneCloudVpcResource(wire) {
			return int16(options.Options.OvnUnderlayMtu - api.VPC_OVN_ENCAP_COST)
		} else if wire.Mtu != 0 {
			return int16(wire.Mtu)
		} else {
			return int16(baseMtu)
		}
	}

	return int16(baseMtu)
}

func (snet *SNetwork) GetNetworkInterfaces() ([]SNetworkInterface, error) {
	sq := NetworkinterfacenetworkManager.Query().SubQuery()
	q := NetworkInterfaceManager.Query()
	q = q.Join(sq, sqlchemy.Equals(q.Field("id"), sq.Field("networkinterface_id"))).
		Filter(sqlchemy.Equals(sq.Field("network_id"), snet.Id))
	networkinterfaces := []SNetworkInterface{}
	err := db.FetchModelObjects(NetworkInterfaceManager, q, &networkinterfaces)
	if err != nil {
		return nil, err
	}
	return networkinterfaces, nil
}

func (snet *SNetwork) ValidateDeleteCondition(ctx context.Context, data *api.NetworkDetails) error {
	if data == nil {
		data = &api.NetworkDetails{}
		nics, err := NetworkManager.TotalNicCount([]string{snet.Id})
		if err != nil {
			return errors.Wrapf(err, "TotalNicCount")
		}
		if cnt, ok := nics[snet.Id]; ok {
			data.SNetworkNics = cnt
		}
	}
	if data.Total-data.ReserveVnics4-data.NetworkinterfaceVnics > 0 || data.Total6-data.ReserveVnics6 > 0 {
		return httperrors.NewNotEmptyError("not an empty network %s", jsonutils.Marshal(data.SNetworkNics).String())
	}

	return snet.SSharableVirtualResourceBase.ValidateDeleteCondition(ctx, nil)
}

func (snet *SNetwork) GetGuestnetworks() ([]SGuestnetwork, error) {
	q := GuestnetworkManager.Query().Equals("network_id", snet.Id)
	gns := []SGuestnetwork{}
	err := db.FetchModelObjects(GuestnetworkManager, q, &gns)
	if err != nil {
		return nil, errors.Wrapf(err, "db.FetchModelObjects")
	}
	return gns, nil
}

func (snet *SNetwork) GetDBInstanceNetworks() ([]SDBInstanceNetwork, error) {
	q := DBInstanceNetworkManager.Query().Equals("network_id", snet.Id)
	networks := []SDBInstanceNetwork{}
	err := db.FetchModelObjects(DBInstanceNetworkManager, q, &networks)
	if err != nil {
		return nil, errors.Wrapf(err, "db.FetchModelObjects")
	}
	return networks, nil
}

func (manager *SNetworkManager) GetOrCreateClassicNetwork(ctx context.Context, wire *SWire) (*SNetwork, error) {
	_network, err := db.FetchByExternalIdAndManagerId(manager, wire.Id, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
		v, _ := wire.GetVpc()
		if v != nil {
			wire := WireManager.Query().SubQuery()
			vpc := VpcManager.Query().SubQuery()
			return q.Join(wire, sqlchemy.Equals(wire.Field("id"), q.Field("wire_id"))).
				Join(vpc, sqlchemy.Equals(vpc.Field("id"), wire.Field("vpc_id"))).
				Filter(sqlchemy.Equals(vpc.Field("manager_id"), v.ManagerId))
		}
		return q
	})
	if err == nil {
		return _network.(*SNetwork), nil
	}
	if errors.Cause(err) != sql.ErrNoRows {
		return nil, errors.Wrap(err, "db.FetchByExternalId")
	}
	network := SNetwork{
		GuestIpStart: "0.0.0.0",
		GuestIpEnd:   "255.255.255.255",
		GuestIpMask:  0,
		GuestGateway: "0.0.0.0",
		ServerType:   api.NETWORK_TYPE_GUEST,
	}
	network.WireId = wire.Id
	network.SetModelManager(manager, &network)
	network.Name = fmt.Sprintf("emulate network for classic network with wire %s", wire.Id)
	network.ExternalId = wire.Id
	network.IsEmulated = true
	network.IsPublic = true
	network.PublicScope = "system"
	admin := auth.AdminCredential()
	network.DomainId = admin.GetProjectDomainId()
	network.ProjectId = admin.GetProjectId()
	network.Status = api.NETWORK_STATUS_UNAVAILABLE
	err = manager.TableSpec().Insert(ctx, &network)
	if err != nil {
		return nil, errors.Wrap(err, "Insert classic network")
	}
	return &network, nil
}

func (snet *SNetwork) GetUsedAddresses(ctx context.Context) map[string]bool {
	used := make(map[string]bool)

	q := snet.getUsedAddressQuery(ctx, nil, nil, rbacscope.ScopeSystem, true)
	results, err := q.AllStringMap()
	if err != nil {
		log.Errorf("GetUsedAddresses fail %s", err)
		return used
	}
	for _, result := range results {
		used[result["ip_addr"]] = true
	}
	return used
}

func (snet *SNetwork) GetUsedAddresses6(ctx context.Context) map[string]bool {
	used := make(map[string]bool)

	q := snet.getUsedAddressQuery6(ctx, nil, nil, rbacscope.ScopeSystem, true)
	results, err := q.AllStringMap()
	if err != nil {
		log.Errorf("GetUsedAddresses fail %s", err)
		return used
	}
	for _, result := range results {
		used[result["ip6_addr"]] = true
	}
	return used
}

func (snet *SNetwork) GetIPRange() *netutils.IPV4AddrRange {
	return snet.getIPRange()
}

func (net *SNetwork) getIPRange() *netutils.IPV4AddrRange {
	if len(net.GuestIpStart) == 0 || len(net.GuestIpEnd) == 0 {
		return nil
	}
	start, _ := netutils.NewIPV4Addr(net.GuestIpStart)
	end, _ := netutils.NewIPV4Addr(net.GuestIpEnd)
	ipRange := netutils.NewIPV4AddrRange(start, end)
	return &ipRange
}

func (net *SNetwork) getIPRange6() *netutils.IPV6AddrRange {
	if len(net.GuestIp6Start) == 0 || len(net.GuestIp6End) == 0 {
		return nil
	}
	start, _ := netutils.NewIPV6Addr(net.GuestIp6Start)
	end, _ := netutils.NewIPV6Addr(net.GuestIp6End)
	ipRange := netutils.NewIPV6AddrRange(start, end)
	return &ipRange
}

func (net *SNetwork) getNetRange() netutils.IPV4AddrRange {
	start, _ := netutils.NewIPV4Addr(net.GuestIpStart)
	return netutils.NewIPV4AddrRange(start.NetAddr(net.GuestIpMask), start.BroadcastAddr(net.GuestIpMask))
}

func isIpUsed(ipstr string, addrTable map[string]bool, recentUsedAddrTable map[string]bool) bool {
	_, ok := addrTable[ipstr]
	if !ok {
		recentUsed := false
		if recentUsedAddrTable != nil {
			if _, ok := recentUsedAddrTable[ipstr]; ok {
				recentUsed = true
			}
		}
		return recentUsed
	} else {
		return true
	}
}

func (snet *SNetwork) getFreeIP6(addrTable map[string]bool, recentUsedAddrTable map[string]bool, candidate string) (string, error) {
	if !snet.IsSupportIPv6() {
		return "", errors.Wrapf(cloudprovider.ErrNotSupported, "ipv6")
	}
	iprange := snet.getIPRange6()
	// Try candidate first
	if len(candidate) > 0 {
		candIP, err := netutils.NewIPV6Addr(candidate)
		if err != nil {
			return "", errors.Wrap(err, "NewIPV6Addr")
		}
		if !iprange.Contains(candIP) {
			return "", httperrors.NewInputParameterError("candidate %s out of range %s", candidate, iprange.String())
		}
		if _, ok := addrTable[candidate]; !ok {
			return candidate, nil
		}
	}
	// ipv6 support random address allocation only
	const MAX_TRIES = 5
	for i := 0; i < MAX_TRIES; i += 1 {
		ip := iprange.Random()
		if !isIpUsed(ip.String(), addrTable, recentUsedAddrTable) {
			return ip.String(), nil
		}
	}
	// failed, fallback to IPAllocationStepup
	return "", httperrors.NewInsufficientResourceError("Out of IP address")
}

func (snet *SNetwork) getFreeIP(addrTable map[string]bool, recentUsedAddrTable map[string]bool, candidate string, allocDir api.IPAllocationDirection) (string, error) {
	iprange := snet.getIPRange()
	// Try candidate first
	if len(candidate) > 0 {
		candIP, err := netutils.NewIPV4Addr(candidate)
		if err != nil {
			return "", err
		}
		if !iprange.Contains(candIP) {
			return "", httperrors.NewInputParameterError("candidate %s out of range %s", candidate, iprange.String())
		}
		if _, ok := addrTable[candidate]; !ok {
			return candidate, nil
		}
	}
	// If network's alloc_policy is not none, then use network's alloc_policy
	if len(snet.AllocPolicy) > 0 && api.IPAllocationDirection(snet.AllocPolicy) != api.IPAllocationNone {
		allocDir = api.IPAllocationDirection(snet.AllocPolicy)
	}
	// if alloc_dir is not speicified, and network's alloc_policy is not either, use default
	if len(allocDir) == 0 {
		allocDir = api.IPAllocationDirection(options.Options.DefaultIPAllocationDirection)
	}
	if allocDir == api.IPAllocationStepdown {
		ip, _ := netutils.NewIPV4Addr(snet.GuestIpEnd)
		for iprange.Contains(ip) {
			if !isIpUsed(ip.String(), addrTable, recentUsedAddrTable) {
				return ip.String(), nil
			}
			ip = ip.StepDown()
		}
	} else {
		if allocDir == api.IPAllocationRandom {
			const MAX_TRIES = 5
			for i := 0; i < MAX_TRIES; i += 1 {
				ip := iprange.Random()
				if !isIpUsed(ip.String(), addrTable, recentUsedAddrTable) {
					return ip.String(), nil
				}
			}
			// failed, fallback to IPAllocationStepup
		}
		ip, _ := netutils.NewIPV4Addr(snet.GuestIpStart)
		for iprange.Contains(ip) {
			if !isIpUsed(ip.String(), addrTable, recentUsedAddrTable) {
				return ip.String(), nil
			}
			ip = ip.StepUp()
		}
	}
	return "", httperrors.NewInsufficientResourceError("Out of IP address")
}

func (snet *SNetwork) GetFreeIPWithLock(ctx context.Context, userCred mcclient.TokenCredential, addrTable map[string]bool, recentUsedAddrTable map[string]bool, candidate string, allocDir api.IPAllocationDirection, reserved bool, addrType api.TAddressType) (string, error) {
	lockman.LockObject(ctx, snet)
	defer lockman.ReleaseObject(ctx, snet)

	return snet.GetFreeIP(ctx, userCred, addrTable, recentUsedAddrTable, candidate, allocDir, reserved, addrType)
}

func (snet *SNetwork) GetFreeIP(ctx context.Context, userCred mcclient.TokenCredential, addrTable map[string]bool, recentUsedAddrTable map[string]bool, candidate string, allocDir api.IPAllocationDirection, reserved bool, addrType api.TAddressType) (string, error) {
	// if reserved true, first try find IP in reserved IP pool
	if reserved {
		rip := ReservedipManager.GetReservedIP(snet, candidate, addrType)
		if rip != nil {
			rip.Release(ctx, userCred, snet)
			return candidate, nil
		}
		// return "", httperrors.NewInsufficientResourceError("Reserved address %s not found", candidate)
		// if not find, warning, then fallback to normal procedure
		log.Warningf("Reserved address %s not found", candidate)
	}

	if addrType == api.AddressTypeIPv6 {
		if addrTable == nil {
			addrTable = snet.GetUsedAddresses6(ctx)
		}
		if recentUsedAddrTable == nil {
			recentUsedAddrTable = GuestnetworkManager.getRecentlyReleasedIPAddresses6(snet.Id, snet.getAllocTimoutDuration())
		}
		cand, err := snet.getFreeIP6(addrTable, recentUsedAddrTable, candidate)
		if err != nil {
			return "", errors.Wrap(err, "getFreeIP6")
		}
		return cand, nil
	} else {
		if addrTable == nil {
			addrTable = snet.GetUsedAddresses(ctx)
		}
		if recentUsedAddrTable == nil {
			recentUsedAddrTable = GuestnetworkManager.getRecentlyReleasedIPAddresses(snet.Id, snet.getAllocTimoutDuration())
		}
		cand, err := snet.getFreeIP(addrTable, recentUsedAddrTable, candidate, allocDir)
		if err != nil {
			return "", errors.Wrap(err, "getFreeIP")
		}
		return cand, nil
	}
}

func (snet *SNetwork) GetNetAddr() netutils.IPV4Addr {
	startIp, _ := netutils.NewIPV4Addr(snet.GuestIpStart)
	return startIp.NetAddr(snet.GuestIpMask)
}

func (snet *SNetwork) GetDNS(zoneName string) string {
	if len(snet.GuestDns) > 0 {
		return snet.GuestDns
	}
	if len(zoneName) == 0 {
		wire, _ := snet.GetWire()
		if wire != nil {
			zone, _ := wire.GetZone()
			if zone != nil {
				zoneName = zone.Name
			}
		}
	}
	srvs, _ := auth.GetDNSServers(options.Options.Region, zoneName)
	if len(srvs) > 0 {
		return strings.Join(srvs, ",")
	}
	if len(options.Options.DNSServer) > 0 {
		return options.Options.DNSServer
	}

	return ""
}

func (snet *SNetwork) GetNTP() string {
	if len(snet.GuestNtp) > 0 {
		return snet.GuestNtp
	} else {
		zoneName := ""
		wire, _ := snet.GetWire()
		if wire != nil {
			zone, _ := wire.GetZone()
			if zone != nil {
				zoneName = zone.Name
			}
		}
		srvs, _ := auth.GetNTPServers(options.Options.Region, zoneName)
		if len(srvs) > 0 {
			return strings.Join(srvs, ",")
		}
		return ""
	}
}

func (snet *SNetwork) GetDomain() string {
	if len(snet.GuestDomain) > 0 {
		return snet.GuestDomain
	} else if !apis.IsIllegalSearchDomain(options.Options.DNSDomain) {
		return options.Options.DNSDomain
	} else {
		return ""
	}
}

func (snet *SNetwork) GetRoutes() []types.SRoute {
	ret := make([]types.SRoute, 0)
	routes := snet.GetMetadataJson(context.Background(), "static_routes", nil)
	if routes != nil {
		routesMap, err := routes.GetMap()
		if err != nil {
			return nil
		}
		for net, routeJson := range routesMap {
			route, _ := routeJson.GetString()
			ret = append(ret, types.SRoute{net, route})
		}
	}
	return ret
}

func (snet *SNetwork) updateDnsRecord(nic *SGuestnetwork, isAdd bool) {
	guest := nic.GetGuest()
	if !gotypes.IsNil(guest) {
		snet._updateDnsRecord(guest.Name, nic.IpAddr, isAdd)
	}
}

func (snet *SNetwork) _updateDnsRecord(name string, ipAddr string, isAdd bool) {
	if len(snet.GuestDns) > 0 && len(snet.GuestDomain) > 0 && len(ipAddr) > 0 {
		keyName := snet.GetMetadata(context.Background(), "dns_update_key_name", nil)
		keySecret := snet.GetMetadata(context.Background(), "dns_update_key_secret", nil)
		dnsSrv := snet.GetMetadata(context.Background(), "dns_update_server", nil)
		if len(dnsSrv) == 0 || !regutils.MatchIPAddr(dnsSrv) {
			dnsSrv = snet.GuestDns
		}
		log.Infof("dns update %s %s isAdd=%t", ipAddr, dnsSrv, isAdd)
		if len(keyName) > 0 && len(keySecret) > 0 {
			/* netman.get_manager().dns_update(name,
			snet.guest_domain, ip_addr, None,
			dns_srv, snet.guest_dns6, key_name, key_secret,
			is_add) */
		}
		targets := snet.getDnsUpdateTargets()
		if targets != nil {
			for srv, keys := range targets {
				for _, key := range keys {
					log.Debugf("Register %s %s", srv, key)
					/*
											netman.get_manager().dns_update(name,
						                            snet.guest_domain, ip_addr, None,
						                            srv, None,
						                            key.get('key', None),
						                            key.get('secret', None),
						                            is_add)
					*/
				}
			}
		}
	}
}

type DNSUpdateKeySecret struct {
	Key    string
	Secret string
}

func (snet *SNetwork) getDnsUpdateTargets() map[string][]DNSUpdateKeySecret {
	targets := make(map[string][]DNSUpdateKeySecret)
	targetsJson := snet.GetMetadataJson(context.Background(), api.EXTRA_DNS_UPDATE_TARGETS, nil)
	if targetsJson == nil {
		return nil
	} else {
		err := targetsJson.Unmarshal(&targets)
		if err != nil {
			return nil
		}
		return targets
	}
}

func (snet *SNetwork) GetGuestIpv4StartAddress() netutils.IPV4Addr {
	addr, _ := netutils.NewIPV4Addr(snet.GuestIpStart)
	return addr
}

func (snet *SNetwork) IsExitNetwork() bool {
	if len(snet.GuestIpStart) == 0 {
		return false
	}
	return len(snet.ExternalId) == 0 && netutils.IsExitAddress(snet.GetGuestIpv4StartAddress())
}

func (manager *SNetworkManager) getNetworksByWire(ctx context.Context, wire *SWire) ([]SNetwork, error) {
	return wire.getNetworks(ctx, nil, nil, rbacscope.ScopeNone)
}

func (manager *SNetworkManager) SyncNetworks(
	ctx context.Context,
	userCred mcclient.TokenCredential,
	wire *SWire,
	nets []cloudprovider.ICloudNetwork,
	provider *SCloudprovider,
	xor bool,
) ([]SNetwork, []cloudprovider.ICloudNetwork, compare.SyncResult) {
	syncOwnerId := provider.GetOwnerId()

	lockman.LockRawObject(ctx, manager.Keyword(), wire.Id)
	defer lockman.ReleaseRawObject(ctx, manager.Keyword(), wire.Id)

	localNets := make([]SNetwork, 0)
	remoteNets := make([]cloudprovider.ICloudNetwork, 0)
	syncResult := compare.SyncResult{}

	dbNets, err := manager.getNetworksByWire(ctx, wire)
	if err != nil {
		syncResult.Error(err)
		return nil, nil, syncResult
	}

	for i := range dbNets {
		if taskman.TaskManager.IsInTask(&dbNets[i]) {
			syncResult.Error(fmt.Errorf("object in task"))
			return nil, nil, syncResult
		}
	}

	removed := make([]SNetwork, 0)
	commondb := make([]SNetwork, 0)
	commonext := make([]cloudprovider.ICloudNetwork, 0)
	added := make([]cloudprovider.ICloudNetwork, 0)

	err = compare.CompareSets(dbNets, nets, &removed, &commondb, &commonext, &added)
	if err != nil {
		syncResult.Error(err)
		return nil, nil, syncResult
	}

	for i := 0; i < len(removed); i += 1 {
		err = removed[i].syncRemoveCloudNetwork(ctx, userCred)
		if err != nil {
			syncResult.DeleteError(err)
		} else {
			syncResult.Delete()
		}
	}
	if !xor {
		for i := 0; i < len(commondb); i += 1 {
			err = commondb[i].SyncWithCloudNetwork(ctx, userCred, commonext[i])
			if err != nil {
				syncResult.UpdateError(err)
				continue
			}
			localNets = append(localNets, commondb[i])
			remoteNets = append(remoteNets, commonext[i])
			syncResult.Update()
		}
	}
	for i := 0; i < len(added); i += 1 {
		new, err := manager.newFromCloudNetwork(ctx, userCred, added[i], wire, syncOwnerId, provider)
		if err != nil {
			syncResult.AddError(err)
		} else {
			localNets = append(localNets, *new)
			remoteNets = append(remoteNets, added[i])
			syncResult.Add()
		}
	}

	return localNets, remoteNets, syncResult
}

func (snet *SNetwork) syncRemoveCloudNetwork(ctx context.Context, userCred mcclient.TokenCredential) error {
	lockman.LockObject(ctx, snet)
	defer lockman.ReleaseObject(ctx, snet)

	if snet.ExternalId == snet.WireId {
		return nil
	}

	err := snet.ValidateDeleteCondition(ctx, nil)
	if err != nil { // cannot delete
		err = snet.SetStatus(ctx, userCred, api.NETWORK_STATUS_UNKNOWN, "Sync to remove")
	} else {
		err = snet.RealDelete(ctx, userCred)
		if err == nil {
			notifyclient.EventNotify(ctx, userCred, notifyclient.SEventNotifyParam{
				Obj:    snet,
				Action: notifyclient.ActionSyncDelete,
			})
		}
	}
	return err
}

func (snet *SNetwork) SyncWithCloudNetwork(ctx context.Context, userCred mcclient.TokenCredential, extNet cloudprovider.ICloudNetwork) error {
	diff, err := db.UpdateWithLock(ctx, snet, func() error {
		if options.Options.EnableSyncName {
			newName, _ := db.GenerateAlterName(snet, extNet.GetName())
			if len(newName) > 0 {
				snet.Name = newName
			}
		}

		snet.Status = extNet.GetStatus()
		snet.GuestIpStart = extNet.GetIpStart()
		snet.GuestIpEnd = extNet.GetIpEnd()
		snet.GuestIpMask = extNet.GetIpMask()
		snet.GuestGateway = extNet.GetGateway()
		snet.ServerType = api.TNetworkType(extNet.GetServerType())

		snet.GuestIp6Start = extNet.GetIp6Start()
		snet.GuestIp6End = extNet.GetIp6End()
		snet.GuestIp6Mask = extNet.GetIp6Mask()
		snet.GuestGateway6 = extNet.GetGateway6()

		snet.AllocTimoutSeconds = extNet.GetAllocTimeoutSeconds()

		if createdAt := extNet.GetCreatedAt(); !createdAt.IsZero() {
			snet.CreatedAt = createdAt
		}

		return nil
	})
	if err != nil {
		log.Errorf("syncWithCloudNetwork error %s", err)
		return err
	}
	db.OpsLog.LogSyncUpdate(snet, diff, userCred)
	if len(diff) > 0 {
		notifyclient.EventNotify(ctx, userCred, notifyclient.SEventNotifyParam{
			Obj:    snet,
			Action: notifyclient.ActionSyncUpdate,
		})
	}

	vpc, err := snet.GetVpc()
	if err != nil {
		return errors.Wrapf(err, "GetVpc")
	}

	provider := vpc.GetCloudprovider()

	if provider != nil {
		if account, _ := provider.GetCloudaccount(); account != nil {
			syncVirtualResourceMetadata(ctx, userCred, snet, extNet, account.ReadOnly)
		}

		SyncCloudProject(ctx, userCred, snet, provider.GetOwnerId(), extNet, provider)

		shareInfo := provider.getAccountShareInfo()
		if utils.IsInStringArray(provider.Provider, api.PRIVATE_CLOUD_PROVIDERS) && extNet.GetPublicScope() == rbacscope.ScopeNone {
			shareInfo = apis.SAccountShareInfo{
				IsPublic:    false,
				PublicScope: rbacscope.ScopeNone,
			}
		}
		snet.SyncShareState(ctx, userCred, shareInfo)
	}

	return nil
}

func (manager *SNetworkManager) newFromCloudNetwork(ctx context.Context, userCred mcclient.TokenCredential, extNet cloudprovider.ICloudNetwork, wire *SWire, syncOwnerId mcclient.IIdentityProvider, provider *SCloudprovider) (*SNetwork, error) {
	net := &SNetwork{}
	net.SetModelManager(manager, net)

	net.Status = extNet.GetStatus()
	net.ExternalId = extNet.GetGlobalId()
	net.WireId = wire.Id
	net.GuestIpStart = extNet.GetIpStart()
	net.GuestIpEnd = extNet.GetIpEnd()
	net.GuestIpMask = extNet.GetIpMask()
	net.GuestGateway = extNet.GetGateway()
	net.ServerType = api.TNetworkType(extNet.GetServerType())
	net.GuestIp6Start = extNet.GetIp6Start()
	net.GuestIp6End = extNet.GetIp6End()
	net.GuestIp6Mask = extNet.GetIp6Mask()
	net.GuestGateway6 = extNet.GetGateway6()

	// net.IsPublic = extNet.GetIsPublic()
	// extScope := extNet.GetPublicScope()
	// if extScope == rbacutils.ScopeDomain && !consts.GetNonDefaultDomainProjects() {
	//	extScope = rbacutils.ScopeSystem
	// }
	// net.PublicScope = string(extScope)

	net.AllocTimoutSeconds = extNet.GetAllocTimeoutSeconds()

	if createdAt := extNet.GetCreatedAt(); !createdAt.IsZero() {
		net.CreatedAt = createdAt
	}

	var err = func() error {
		lockman.LockRawObject(ctx, manager.Keyword(), "name")
		defer lockman.ReleaseRawObject(ctx, manager.Keyword(), "name")

		newName, err := db.GenerateName(ctx, manager, syncOwnerId, extNet.GetName())
		if err != nil {
			return err
		}
		net.Name = newName

		return manager.TableSpec().Insert(ctx, net)
	}()
	if err != nil {
		return nil, errors.Wrapf(err, "Insert")
	}

	syncVirtualResourceMetadata(ctx, userCred, net, extNet, false)

	if provider != nil {
		SyncCloudProject(ctx, userCred, net, syncOwnerId, extNet, provider)
		shareInfo := provider.getAccountShareInfo()
		if utils.IsInStringArray(provider.Provider, api.PRIVATE_CLOUD_PROVIDERS) && extNet.GetPublicScope() == rbacscope.ScopeNone {
			shareInfo = apis.SAccountShareInfo{
				IsPublic:    false,
				PublicScope: rbacscope.ScopeNone,
			}
		}
		net.SyncShareState(ctx, userCred, shareInfo)
	}

	db.OpsLog.LogEvent(net, db.ACT_CREATE, net.GetShortDesc(ctx), userCred)
	notifyclient.EventNotify(ctx, userCred, notifyclient.SEventNotifyParam{
		Obj:    net,
		Action: notifyclient.ActionSyncCreate,
	})

	return net, nil
}

func (net *SNetwork) IsAddressInRange(address netutils.IPV4Addr) bool {
	ipRange := net.getIPRange()
	if ipRange == nil {
		return false
	}
	return ipRange.Contains(address)
}

func (net *SNetwork) IsAddress6InRange(address netutils.IPV6Addr) bool {
	addrRange := net.getIPRange6()
	if addrRange == nil {
		return false
	}
	return addrRange.Contains(address)
}

func (net *SNetwork) IsAddressInNet(address netutils.IPV4Addr) bool {
	return net.getNetRange().Contains(address)
}

func (snet *SNetwork) isAddressUsed(ctx context.Context, address string) (bool, error) {
	q := snet.getUsedAddressQuery(ctx, nil, nil, rbacscope.ScopeSystem, true)
	q = q.Equals("ip_addr", address)
	count, err := q.CountWithError()
	if err != nil && errors.Cause(err) != sql.ErrNoRows {
		return false, errors.Wrap(err, "Query")
	}
	if count > 0 {
		return true, nil
	} else {
		return false, nil
	}
}

func (snet *SNetwork) isAddress6Used(ctx context.Context, address string) (bool, error) {
	q := snet.getUsedAddressQuery6(ctx, nil, nil, rbacscope.ScopeSystem, true)
	q = q.Equals("ip6_addr", address)
	count, err := q.CountWithError()
	if err != nil && errors.Cause(err) != sql.ErrNoRows {
		return false, errors.Wrap(err, "Query")
	}
	if count > 0 {
		return true, nil
	} else {
		return false, nil
	}
}

func (manager *SNetworkManager) fetchAllOnpremiseNetworks(serverType string, isPublic tristate.TriState) ([]SNetwork, error) {
	q := manager.Query()
	wires := WireManager.Query().SubQuery()
	q = q.Join(wires, sqlchemy.Equals(q.Field("wire_id"), wires.Field("id")))
	q = q.Filter(sqlchemy.Equals(wires.Field("vpc_id"), api.DEFAULT_VPC_ID))
	if len(serverType) > 0 {
		q = q.Filter(sqlchemy.Equals(q.Field("server_type"), serverType))
	}
	if isPublic.IsTrue() {
		q = q.Filter(sqlchemy.IsTrue(q.Field("is_public")))
	} else if isPublic.IsFalse() {
		q = q.Filter(sqlchemy.IsFalse(q.Field("is_public")))
	}
	nets := make([]SNetwork, 0)
	err := db.FetchModelObjects(manager, q, &nets)
	if err != nil {
		return nil, errors.Wrap(err, "FetchModelObjects")
	}
	return nets, nil
}

func (manager *SNetworkManager) GetOnPremiseNetworkOfIP(ipAddr string, serverType string, isPublic tristate.TriState) (*SNetwork, error) {
	address, err := netutils.NewIPV4Addr(ipAddr)
	if err != nil {
		return nil, errors.Wrap(err, "NewIPV4Addr")
	}
	nets, err := manager.fetchAllOnpremiseNetworks(serverType, isPublic)
	if err != nil {
		return nil, errors.Wrap(err, "fetchAllOnpremiseNetworks")
	}
	for _, n := range nets {
		if n.IsAddressInRange(address) {
			return &n, nil
		}
	}
	return nil, sql.ErrNoRows
}

func (manager *SNetworkManager) GetOnPremiseNetworkOfIP6(ip6Addr string, serverType string, isPublic tristate.TriState) (*SNetwork, error) {
	address, err := netutils.NewIPV6Addr(ip6Addr)
	if err != nil {
		return nil, errors.Wrap(err, "NewIPV6Addr")
	}
	nets, err := manager.fetchAllOnpremiseNetworks(serverType, isPublic)
	if err != nil {
		return nil, errors.Wrap(err, "fetchAllOnpremiseNetworks")
	}
	for _, n := range nets {
		if n.IsAddress6InRange(address) {
			return &n, nil
		}
	}
	return nil, sql.ErrNoRows
}

func (manager *SNetworkManager) allNetworksQ(providers []string, brands []string, cloudEnv string, rangeObjs []db.IStandaloneModel) *sqlchemy.SQuery {
	networks := manager.Query().SubQuery()
	wires := WireManager.Query().SubQuery()
	vpcs := VpcManager.Query().SubQuery()

	q := networks.Query(networks.Field("id"))
	q = q.Join(wires, sqlchemy.Equals(q.Field("wire_id"), wires.Field("id")))
	q = q.Join(vpcs, sqlchemy.Equals(wires.Field("vpc_id"), vpcs.Field("id")))

	q = CloudProviderFilter(q, vpcs.Field("manager_id"), providers, brands, cloudEnv)
	q = RangeObjectsFilter(q, rangeObjs, vpcs.Field("cloudregion_id"), wires.Field("zone_id"), vpcs.Field("manager_id"), nil, nil)

	return q
}

func (manager *SNetworkManager) totalPortCountQ(
	ctx context.Context,
	scope rbacscope.TRbacScope,
	userCred mcclient.IIdentityProvider,
	providers []string,
	brands []string,
	cloudEnv string,
	rangeObjs []db.IStandaloneModel,
	policyResult rbacutils.SPolicyResult,
) *sqlchemy.SQuery {
	q := manager.allNetworksQ(providers, brands, cloudEnv, rangeObjs)
	switch scope {
	case rbacscope.ScopeSystem:
	case rbacscope.ScopeDomain:
		q = q.Equals("domain_id", userCred.GetProjectDomainId())
	case rbacscope.ScopeProject:
		q = q.Equals("tenant_id", userCred.GetProjectId())
	}
	q = db.ObjectIdQueryWithPolicyResult(ctx, q, manager, policyResult)
	return manager.Query().In("id", q.Distinct().SubQuery())
}

type NetworkPortStat struct {
	Count    int
	CountExt int
}

func (manager *SNetworkManager) TotalPortCount(
	ctx context.Context,
	scope rbacscope.TRbacScope,
	userCred mcclient.IIdentityProvider,
	providers []string, brands []string, cloudEnv string,
	rangeObjs []db.IStandaloneModel,
	policyResult rbacutils.SPolicyResult,
) map[api.TNetworkType]NetworkPortStat {
	nets := make([]SNetwork, 0)
	err := manager.totalPortCountQ(
		ctx,
		scope,
		userCred,
		providers, brands, cloudEnv,
		rangeObjs,
		policyResult,
	).All(&nets)
	if err != nil {
		log.Errorf("TotalPortCount: %v", err)
	}
	ret := make(map[api.TNetworkType]NetworkPortStat)
	for _, net := range nets {
		var stat NetworkPortStat
		var allStat NetworkPortStat
		if len(net.ServerType) > 0 {
			stat, _ = ret[net.ServerType]
		}
		allStat, _ = ret[""]
		count := net.GetTotalAddressCount()
		if net.IsExitNetwork() {
			if len(net.ServerType) > 0 {
				stat.CountExt += count
			}
			allStat.CountExt += count
		} else {
			if len(net.ServerType) > 0 {
				stat.Count += count
			}
			allStat.Count += count
		}
		if len(net.ServerType) > 0 {
			ret[net.ServerType] = stat
		}
		ret[""] = allStat
	}
	return ret
}

type SNicConfig struct {
	Mac    string
	Index  int
	Ifname string
}

func parseNetworkInfo(ctx context.Context, userCred mcclient.TokenCredential, info *api.NetworkConfig) (*api.NetworkConfig, error) {
	if info.Network != "" {
		netObj, err := NetworkManager.FetchByIdOrName(ctx, userCred, info.Network)
		if err != nil {
			if err == sql.ErrNoRows {
				return nil, httperrors.NewResourceNotFoundError2(NetworkManager.Keyword(), info.Network)
			} else {
				return nil, err
			}
		}
		net := netObj.(*SNetwork)
		if net.ProjectId == userCred.GetProjectId() ||
			(db.IsDomainAllowGet(ctx, userCred, net) && net.DomainId == userCred.GetProjectDomainId()) ||
			db.IsAdminAllowGet(ctx, userCred, net) ||
			net.IsSharable(userCred) {
			info.Network = netObj.GetId()
		} else {
			return nil, httperrors.NewForbiddenError("no allow to access network %s", info.Network)
		}
	}

	if info.BwLimit == 0 {
		info.BwLimit = options.Options.DefaultBandwidth
	}
	return info, nil
}

func (snet *SNetwork) GetFreeAddressCount() (int, error) {
	return snet.getFreeAddressCount()
}

func (snet *SNetwork) GetTotalAddressCount() int {
	ipRange := snet.getIPRange()
	if ipRange != nil {
		return ipRange.AddressCount()
	}
	ip6Range := snet.getIPRange6()
	if ip6Range == nil {
		return 0
	}
	cnt := ip6Range.AddressCount()
	if cnt.Cmp(big.NewInt(math.MaxInt32)) > 0 {
		return math.MaxInt32
	}
	return int(cnt.Int64())
}

func (snet *SNetwork) getFreeAddressCount() (int, error) {
	vnics, err := NetworkManager.TotalNicCount([]string{snet.Id})
	if err != nil {
		return -1, errors.Wrapf(err, "TotalNicCount")
	}
	used := 0
	if nics, ok := vnics[snet.Id]; ok {
		used = nics.Total
	}
	return snet.GetTotalAddressCount() - used, nil
}

func isValidNetworkInfo(ctx context.Context, userCred mcclient.TokenCredential, netConfig *api.NetworkConfig, reuseAddr, reuseAddr6 string) error {
	if len(netConfig.Network) > 0 {
		netObj, err := NetworkManager.FetchByIdOrName(ctx, userCred, netConfig.Network)
		if err != nil {
			return httperrors.NewResourceNotFoundError("Network %s not found: %v", netConfig.Network, err)
		}
		net := netObj.(*SNetwork)
		/*
			// scheduler do the check
			if !netConfig.Vip && !netConfig.Reserved && net.getFreeAddressCount() == 0 {
				return fmt.Errorf("Address exhausted in network %s")
			}*/
		if len(netConfig.Address) > 0 {
			ipAddr, err := netutils.NewIPV4Addr(netConfig.Address)
			if err != nil {
				return errors.Wrap(err, "NewIPV4Addr")
			}
			if !net.IsAddressInRange(ipAddr) {
				return httperrors.NewInputParameterError("Address %s not in range", netConfig.Address)
			}
			if netConfig.Reserved {
				// the privilege to access reserved ip
				if db.IsAdminAllowList(userCred, ReservedipManager).Result.IsDeny() {
					return httperrors.NewForbiddenError("Only system admin allowed to use reserved ip")
				}
				if ReservedipManager.GetReservedIP(net, netConfig.Address, api.AddressTypeIPv4) == nil {
					return httperrors.NewInputParameterError("Address %s not reserved", netConfig.Address)
				}
			} else {
				used, err := net.isAddressUsed(ctx, netConfig.Address)
				if err != nil {
					return httperrors.NewInternalServerError("isAddressUsed fail %s", err)
				}
				if used && netConfig.Address != reuseAddr {
					return httperrors.NewInputParameterError("Address %s has been used", netConfig.Address)
				}
			}
		}
		if len(netConfig.Address6) > 0 {
			if !net.IsSupportIPv6() {
				return errors.Wrap(httperrors.ErrNotSupported, "network not enable ipv6")
			}
			ipAddr, err := netutils.NewIPV6Addr(netConfig.Address6)
			if err != nil {
				return errors.Wrap(err, "NewIPV6Addr")
			}
			netConfig.Address6 = ipAddr.String()
			if !net.IsAddress6InRange(ipAddr) {
				return httperrors.NewInputParameterError("Address v6 %s not in range", netConfig.Address6)
			}
			if netConfig.Reserved {
				// the privilege to access reserved ip
				if db.IsAdminAllowList(userCred, ReservedipManager).Result.IsDeny() {
					return httperrors.NewForbiddenError("Only system admin allowed to use reserved ip")
				}
				if ReservedipManager.GetReservedIP(net, netConfig.Address6, api.AddressTypeIPv6) == nil {
					return httperrors.NewInputParameterError("Address v6 %s not reserved", netConfig.Address6)
				}
			} else {
				used, err := net.isAddress6Used(ctx, netConfig.Address6)
				if err != nil {
					return httperrors.NewInternalServerError("isAddress6Used fail %s", err)
				}
				if used && netConfig.Address6 != reuseAddr6 {
					return httperrors.NewInputParameterError("v6 address %s has been used", netConfig.Address6)
				}
			}
		}
		if netConfig.RequireIPv6 && !net.IsSupportIPv6() {
			return errors.Wrap(httperrors.ErrNotSupported, "network not enable ipv6")
		}
		if netConfig.BwLimit > api.MAX_BANDWIDTH {
			return httperrors.NewInputParameterError("Bandwidth limit cannot exceed %dMbps", api.MAX_BANDWIDTH)
		}
		if net.ServerType == api.NETWORK_TYPE_BAREMETAL {
			// not check baremetal network free address here
			// TODO: find better solution ?
			return nil
		}
		freeCnt, err := net.getFreeAddressCount()
		if err != nil {
			return httperrors.NewInternalServerError("getFreeAddressCount fail %s", err)
		}
		if reuseAddr != "" {
			freeCnt += 1
		}
		if freeCnt < 1 {
			return httperrors.NewInputParameterError("network %s(%s) has no free addresses", net.Name, net.Id)
		}
	}
	/* scheduler to the check
	else if ! netConfig.Vip {
		ct, ctExit := NetworkManager.to
	}
	*/
	if len(netConfig.PortMappings) != 0 {
		for i := range netConfig.PortMappings {
			if err := validatePortMapping(netConfig.PortMappings[i]); err != nil {
				return errors.Wrapf(err, "validate port mapping %s", jsonutils.Marshal(netConfig.PortMappings[i]))
			}
		}
	}
	return nil
}

func validatePortRange(portRange *api.GuestPortMappingPortRange) error {
	if portRange != nil {
		if portRange.Start > portRange.End {
			return httperrors.NewInputParameterError("port range start %d is large than %d", portRange.Start, portRange.End)
		}
		if portRange.Start <= api.GUEST_PORT_MAPPING_RANGE_START {
			return httperrors.NewInputParameterError("port range start %d <= %d", api.GUEST_PORT_MAPPING_RANGE_START, portRange.Start)
		}
		if portRange.End > api.GUEST_PORT_MAPPING_RANGE_END {
			return httperrors.NewInputParameterError("port range end %d > %d", api.GUEST_PORT_MAPPING_RANGE_END, portRange.End)
		}
	}
	return nil
}

func validatePort(port int, start int, end int) error {
	if port < start || port > end {
		return httperrors.NewInputParameterError("port number %d isn't within %d to %d", port, start, end)
	}
	return nil
}

func validatePortMapping(pm *api.GuestPortMapping) error {
	if err := validatePortRange(pm.HostPortRange); err != nil {
		return err
	}
	if pm.HostPort != nil {
		if err := validatePort(*pm.HostPort, api.GUEST_PORT_MAPPING_RANGE_START, api.GUEST_PORT_MAPPING_RANGE_END); err != nil {
			return errors.Wrap(err, "validate host_port")
		}
	}
	// -1 端口表示自动分配
	if pm.Port != -1 {
		if err := validatePort(pm.Port, 1, 65535); err != nil {
			return errors.Wrap(err, "validate port")
		}
	}
	if pm.Protocol == "" {
		pm.Protocol = api.GuestPortMappingProtocolTCP
	}
	if !sets.NewString(string(api.GuestPortMappingProtocolUDP), string(api.GuestPortMappingProtocolTCP)).Has(string(pm.Protocol)) {
		return httperrors.NewInputParameterError("unsupported protocol %s", pm.Protocol)
	}
	if len(pm.RemoteIps) != 0 {
		for _, ip := range pm.RemoteIps {
			if !regutils.MatchIPAddr(ip) && !regutils.MatchCIDR(ip) {
				return httperrors.NewInputParameterError("invalid ip or prefix %s", ip)
			}
		}
	}
	if pm.Rule != nil {
		if pm.Rule.FirstPortOffset != nil {
			if *pm.Rule.FirstPortOffset < 0 {
				return httperrors.NewInputParameterError("first port offset %d is less than 0", *pm.Rule.FirstPortOffset)
			}
		}
	}
	for _, env := range pm.Envs {
		if env.ValueFrom != api.GuestPortMappingEnvValueFromPort && env.ValueFrom != api.GuestPortMappingEnvValueFromHostPort {
			return httperrors.NewInputParameterError("invalid value from %s", env.ValueFrom)
		}
	}
	return nil
}

func IsExitNetworkInfo(ctx context.Context, userCred mcclient.TokenCredential, netConfig *api.NetworkConfig) bool {
	if len(netConfig.Network) > 0 {
		netObj, _ := NetworkManager.FetchByIdOrName(ctx, userCred, netConfig.Network)
		net := netObj.(*SNetwork)
		if net.IsExitNetwork() {
			return true
		}
	} else if netConfig.Exit {
		return true
	}
	return false
}

func (manager *SNetworkManager) FetchCustomizeColumns(
	ctx context.Context,
	userCred mcclient.TokenCredential,
	query jsonutils.JSONObject,
	objs []interface{},
	fields stringutils2.SSortedStrings,
	isList bool,
) []api.NetworkDetails {
	rows := make([]api.NetworkDetails, len(objs))

	virtRows := manager.SSharableVirtualResourceBaseManager.FetchCustomizeColumns(ctx, userCred, query, objs, fields, isList)
	wireRows := manager.SWireResourceBaseManager.FetchCustomizeColumns(ctx, userCred, query, objs, fields, isList)

	netIds := make([]string, len(objs))
	for i := range rows {
		rows[i] = api.NetworkDetails{
			SharableVirtualResourceDetails: virtRows[i],
			WireResourceInfo:               wireRows[i],
		}
		network := objs[i].(*SNetwork)
		rows[i].Exit = false
		if network.IsExitNetwork() {
			rows[i].Exit = true
		}
		if network.IsClassic() {
			rows[i].IsClassic = true
		}
		rows[i].Ports = network.GetTotalAddressCount()
		rows[i].Routes = network.GetRoutes()
		rows[i].Schedtags = GetSchedtagsDetailsToResourceV2(network, ctx)
		rows[i].Dns = network.GetDNS(rows[i].Zone)
		rows[i].AdditionalWires = network.fetchAdditionalWires()

		netIds[i] = network.Id
	}
	vnics, err := manager.TotalNicCount(netIds)
	if err != nil {
		return rows
	}
	for i := range rows {
		rows[i].SNetworkNics, _ = vnics[netIds[i]]
	}

	return rows
}

func (manager *SNetworkManager) GetTotalNicCount(netIds []string) (map[string]int, error) {
	vnics, err := manager.TotalNicCount(netIds)
	if err != nil {
		return nil, errors.Wrapf(err, "TotalNicCount")
	}
	result := map[string]int{}
	for _, id := range netIds {
		result[id] = 0
		if nics, ok := vnics[id]; ok {
			result[id] = nics.Total
		}
	}
	return result, nil
}

type SNetworkNics struct {
	Id string
	api.SNetworkNics
}

func (nm *SNetworkManager) query(manager db.IModelManager, field string, netIds []string, filter func(*sqlchemy.SQuery) *sqlchemy.SQuery) *sqlchemy.SSubQuery {
	q := manager.Query()

	if filter != nil {
		q = filter(q)
	}

	sq := q.SubQuery()

	return sq.Query(
		sq.Field("network_id"),
		sqlchemy.COUNT(field),
	).In("network_id", netIds).GroupBy(sq.Field("network_id")).SubQuery()
}

func (nm *SNetworkManager) TotalNicCount(netIds []string) (map[string]api.SNetworkNics, error) {
	// guest vnic
	vnicSQ := nm.query(GuestnetworkManager, "vnic", netIds, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
		return q.IsFalse("virtual")
	})

	vnic4SQ := nm.query(GuestnetworkManager, "vnic4", netIds, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
		return q.IsNotEmpty("ip_addr")
	})

	vnic6SQ := nm.query(GuestnetworkManager, "vnic6", netIds, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
		return q.IsNotEmpty("ip6_addr")
	})

	// bm vnic
	bmSQ := nm.query(HostnetworkManager, "bm_vnic", netIds, nil)

	// lb vnic
	lbSQ := nm.query(LoadbalancernetworkManager, "lb_vnic", netIds, nil)

	// eip vnic
	eipSQ := nm.query(ElasticipManager, "eip_vnic", netIds, nil)

	// group vnic
	groupSQ := nm.query(GroupnetworkManager, "group_vnic", netIds, nil)

	// reserved vnics
	reserve4SQ := nm.query(ReservedipManager, "reserve_vnic4", netIds, filterExpiredReservedIp4s)

	reserve6SQ := nm.query(ReservedipManager, "reserve_vnic6", netIds, filterExpiredReservedIp6s)

	// rds vnics
	rdsSQ := nm.query(DBInstanceNetworkManager, "rds_vnic", netIds, nil)

	// nat vnics
	natSQ := nm.query(NatGatewayManager, "nat_vnic", netIds, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
		return q.IsNotEmpty("ip_addr")
	})

	// networkinterface vncis
	nisSQ := nm.query(NetworkinterfacenetworkManager, "networkinterface_vnic", netIds, nil)

	// bm reused vnics
	bmReusedSQ := nm.query(GuestnetworkManager, "bm_reused_vnic", netIds, func(q *sqlchemy.SQuery) *sqlchemy.SQuery {
		guest := GuestManager.Query().SubQuery()
		bmn := HostnetworkManager.Query().SubQuery()
		return q.Join(guest, sqlchemy.Equals(guest.Field("id"), q.Field("guest_id"))).Join(bmn, sqlchemy.AND(
			sqlchemy.Equals(q.Field("ip_addr"), bmn.Field("ip_addr")),
			sqlchemy.Equals(guest.Field("host_id"), bmn.Field("baremetal_id")),
		))
	})

	nets := nm.Query().SubQuery()
	netQ := nets.Query(
		sqlchemy.SUM("vnics", vnicSQ.Field("vnic")),
		sqlchemy.SUM("vnics4", vnic4SQ.Field("vnic4")),
		sqlchemy.SUM("vnics6", vnic6SQ.Field("vnic6")),
		sqlchemy.SUM("bm_vnics", bmSQ.Field("bm_vnic")),
		sqlchemy.SUM("lb_vnics", lbSQ.Field("lb_vnic")),
		sqlchemy.SUM("eip_vnics", eipSQ.Field("eip_vnic")),
		sqlchemy.SUM("group_vnics", groupSQ.Field("group_vnic")),
		sqlchemy.SUM("reserve_vnics4", reserve4SQ.Field("reserve_vnic4")),
		sqlchemy.SUM("reserve_vnics6", reserve6SQ.Field("reserve_vnic6")),
		sqlchemy.SUM("rds_vnics", rdsSQ.Field("rds_vnic")),
		sqlchemy.SUM("nat_vnics", natSQ.Field("nat_vnic")),
		sqlchemy.SUM("networkinterface_vnics", nisSQ.Field("networkinterface_vnic")),
		sqlchemy.SUM("bm_reused_vnics", bmReusedSQ.Field("bm_reused_vnic")),
	)

	netQ.AppendField(netQ.Field("id"))

	netQ = netQ.LeftJoin(vnicSQ, sqlchemy.Equals(netQ.Field("id"), vnicSQ.Field("network_id")))
	netQ = netQ.LeftJoin(vnic4SQ, sqlchemy.Equals(netQ.Field("id"), vnic4SQ.Field("network_id")))
	netQ = netQ.LeftJoin(vnic6SQ, sqlchemy.Equals(netQ.Field("id"), vnic6SQ.Field("network_id")))
	netQ = netQ.LeftJoin(bmSQ, sqlchemy.Equals(netQ.Field("id"), bmSQ.Field("network_id")))
	netQ = netQ.LeftJoin(lbSQ, sqlchemy.Equals(netQ.Field("id"), lbSQ.Field("network_id")))
	netQ = netQ.LeftJoin(eipSQ, sqlchemy.Equals(netQ.Field("id"), eipSQ.Field("network_id")))
	netQ = netQ.LeftJoin(groupSQ, sqlchemy.Equals(netQ.Field("id"), groupSQ.Field("network_id")))
	netQ = netQ.LeftJoin(reserve4SQ, sqlchemy.Equals(netQ.Field("id"), reserve4SQ.Field("network_id")))
	netQ = netQ.LeftJoin(reserve6SQ, sqlchemy.Equals(netQ.Field("id"), reserve6SQ.Field("network_id")))
	netQ = netQ.LeftJoin(rdsSQ, sqlchemy.Equals(netQ.Field("id"), rdsSQ.Field("network_id")))
	netQ = netQ.LeftJoin(natSQ, sqlchemy.Equals(netQ.Field("id"), natSQ.Field("network_id")))
	netQ = netQ.LeftJoin(nisSQ, sqlchemy.Equals(netQ.Field("id"), nisSQ.Field("network_id")))
	netQ = netQ.LeftJoin(bmReusedSQ, sqlchemy.Equals(netQ.Field("id"), bmReusedSQ.Field("network_id")))

	netQ = netQ.Filter(sqlchemy.In(netQ.Field("id"), netIds)).GroupBy(netQ.Field("id"))

	nics := []SNetworkNics{}
	err := netQ.All(&nics)
	if err != nil {
		return nil, errors.Wrapf(err, "netQ.All")
	}

	result := map[string]api.SNetworkNics{}
	for i := range nics {
		nics[i].SumTotal()
		result[nics[i].Id] = nics[i].SNetworkNics
	}
	return result, nil
}

// 预留IP
// 预留的IP不会被调度使用
func (snet *SNetwork) PerformReserveIp(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input *api.NetworkReserveIpInput) (jsonutils.JSONObject, error) {
	if len(input.Ips) == 0 {
		return nil, httperrors.NewMissingParameterError("ips")
	}

	var duration time.Duration
	if len(input.Duration) > 0 {
		bc, err := billing.ParseBillingCycle(input.Duration)
		if err != nil {
			return nil, httperrors.NewInputParameterError("Duration %s invalid", input.Duration)
		}
		duration = bc.Duration()
	}

	errs := make([]error, 0)
	for _, ip := range input.Ips {
		err := snet.reserveIpWithDurationAndStatus(ctx, userCred, ip, input.Notes, duration, input.Status)
		if err != nil {
			errs = append(errs, errors.Wrap(err, "reserveIpWithDurationAndStatus"))
		}
	}
	if len(errs) > 0 {
		return nil, errors.NewAggregate(errs)
	}
	return nil, nil
}

func (net *SNetwork) reserveIpWithDuration(ctx context.Context, userCred mcclient.TokenCredential, ipstr string, notes string, duration time.Duration) error {
	return net.reserveIpWithDurationAndStatus(ctx, userCred, ipstr, notes, duration, "")
}

func (net *SNetwork) reserveIpWithDurationAndStatus(ctx context.Context, userCred mcclient.TokenCredential, ipstr string, notes string, duration time.Duration, status string) error {
	var used bool
	var addrType api.TAddressType
	if regutils.MatchIP6Addr(ipstr) {
		addr6, err := netutils.NewIPV6Addr(ipstr)
		if err != nil {
			return httperrors.NewInputParameterError("not a valid ipv6 address %s: %s", ipstr, err)
		}
		if !net.IsSupportIPv6() {
			return httperrors.NewInputParameterError("network is not ipv6 enabled")
		}
		if !net.IsAddress6InRange(addr6) {
			return httperrors.NewInputParameterError("Address %s not in network", ipstr)
		}
		used, err = net.isAddress6Used(ctx, addr6.String())
		if err != nil {
			return httperrors.NewInternalServerError("isAddress6Used fail %s", err)
		}
		addrType = api.AddressTypeIPv6
		ipstr = addr6.String()
	} else if regutils.MatchIP4Addr(ipstr) {
		ipAddr, err := netutils.NewIPV4Addr(ipstr)
		if err != nil {
			return httperrors.NewInputParameterError("not a valid ip address %s: %s", ipstr, err)
		}
		if !net.IsAddressInRange(ipAddr) {
			return httperrors.NewInputParameterError("Address %s not in network", ipstr)
		}
		used, err = net.isAddressUsed(ctx, ipstr)
		if err != nil {
			return httperrors.NewInternalServerError("isAddressUsed fail %s", err)
		}
		addrType = api.AddressTypeIPv4
	} else {
		return errors.Wrapf(httperrors.ErrInvalidFormat, "ip %s is neither ipv4 nor ipv6", ipstr)
	}

	if used {
		rip := ReservedipManager.getReservedIP(net, ipstr, addrType)
		if rip != nil {
			err := rip.extendWithDuration(notes, duration, status)
			if err != nil {
				return errors.Wrap(err, "extendWithDuration")
			}
			return nil
		}
		return httperrors.NewConflictError("Address %s has been used", ipstr)
	}
	err := ReservedipManager.ReserveIPWithDurationAndStatus(ctx, userCred, net, ipstr, notes, duration, status, addrType)
	if err != nil {
		return errors.Wrap(err, "ReservedipManager.ReserveIPWithDurationAndStatus")
	}
	return nil
}

// 释放预留IP
func (snet *SNetwork) PerformReleaseReservedIp(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input *api.NetworkReleaseReservedIpInput) (jsonutils.JSONObject, error) {
	if len(input.Ip) == 0 {
		return nil, httperrors.NewMissingParameterError("ip")
	}
	addrType := api.AddressTypeIPv4
	if regutils.MatchIP6Addr(input.Ip) {
		addr, err := netutils.NewIPV6Addr(input.Ip)
		if err != nil {
			return nil, errors.Wrap(httperrors.ErrInvalidFormat, err.Error())
		}
		input.Ip = addr.String()
	}
	rip := ReservedipManager.getReservedIP(snet, input.Ip, addrType)
	if rip == nil {
		return nil, httperrors.NewInvalidStatusError("Address %s not reserved", input.Ip)
	}
	rip.Release(ctx, userCred, snet)
	return nil, nil
}

func (snet *SNetwork) GetDetailsReservedIps(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject) (jsonutils.JSONObject, error) {
	rips := ReservedipManager.GetReservedIPs(snet)
	if rips == nil {
		return nil, httperrors.NewInternalServerError("get reserved ip error")
	}
	ripV4 := make([]string, 0)
	ripV6 := make([]string, 0)
	for i := 0; i < len(rips); i += 1 {
		if len(rips[i].IpAddr) > 0 {
			ripV4 = append(ripV4, rips[i].IpAddr)
		}
		if len(rips[i].Ip6Addr) > 0 {
			ripV6 = append(ripV6, rips[i].Ip6Addr)
		}
	}
	ret := jsonutils.NewDict()
	if len(ripV4) > 0 {
		ret.Add(jsonutils.Marshal(ripV4), "reserved_ips")
	}
	if len(ripV6) > 0 {
		ret.Add(jsonutils.Marshal(ripV6), "reserved_ip6s")
	}
	return ret, nil
}

func isValidIpv4MaskLen(maskLen int8) bool {
	if maskLen < 12 || maskLen > 30 {
		return false
	} else {
		return true
	}
}

func isValidIpv6MaskLen(maskLen uint8) bool {
	if maskLen < 48 || maskLen > 126 {
		return false
	} else {
		return true
	}
}

func (snet *SNetwork) ensureIfnameHint() {
	if snet.IfnameHint != "" {
		return
	}
	hint, err := NetworkManager.newIfnameHint(snet.Name)
	if err != nil {
		panic(errors.Wrap(err, "ensureIfnameHint: allocate hint"))
	}
	_, err = db.Update(snet, func() error {
		snet.IfnameHint = hint
		return nil
	})
	if err != nil {
		panic(errors.Wrap(err, "ensureIfnameHint: db update"))
	}
	log.Infof("network %s(%s): initialized ifname hint: %s", snet.Name, snet.Id, hint)
}

func (manager *SNetworkManager) NewIfnameHint(hint string) (string, error) {
	return manager.newIfnameHint(hint)
}

func (manager *SNetworkManager) newIfnameHint(hint string) (string, error) {
	isa := func(c byte) bool {
		return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
	}
	isn := func(c byte) bool {
		return (c >= '0' && c <= '9')
	}
	sani := func(r string) string {
		if r != "" && !isa(r[0]) {
			r = "a" + r
		}
		if len(r) > MAX_HINT_LEN {
			r = r[:MAX_HINT_LEN]
		}
		return r
	}
	rand := func(base string) (string, error) {
		if len(base) > HINT_BASE_LEN {
			base = base[:HINT_BASE_LEN]
		}
		for i := 0; i < 3; i++ {
			r := sani(base + rand.String(HINT_RAND_LEN))
			cnt, err := manager.Query().Equals("ifname_hint", r).CountWithError()
			if err == nil && cnt == 0 {
				return r, nil
			}
		}
		/* generate ifname by ifname hint failed
		 * try generate from rand string */
		for i := 0; i < 3; i++ {
			r := sani(rand.String(MAX_HINT_LEN))
			cnt, err := manager.Query().Equals("ifname_hint", r).CountWithError()
			if err == nil && cnt == 0 {
				return r, nil
			}
		}
		return "", fmt.Errorf("failed finding ifname hint")
	}

	r := ""
	for i := range hint {
		c := hint[i]
		if isa(c) || isn(c) || c == '_' {
			r += string(c)
		}
	}
	r = sani(r)

	if len(r) < 3 {
		return rand(r)
	}
	if cnt, err := manager.Query().Equals("ifname_hint", r).CountWithError(); err != nil {
		return "", err
	} else if cnt > 0 {
		return rand(r)
	}
	return r, nil
}

func (manager *SNetworkManager) validateEnsureWire(ctx context.Context, userCred mcclient.TokenCredential, input api.NetworkCreateInput) (w *SWire, v *SVpc, cr *SCloudregion, err error) {
	wObj, err := WireManager.FetchByIdOrName(ctx, userCred, input.Wire)
	if err != nil {
		err = errors.Wrapf(err, "wire %s", input.Wire)
		return
	}
	w = wObj.(*SWire)
	v, _ = w.GetVpc()
	crObj, err := CloudregionManager.FetchById(v.CloudregionId)
	if err != nil {
		err = errors.Wrapf(err, "cloudregion %s", v.CloudregionId)
		return
	}
	cr = crObj.(*SCloudregion)
	return
}

func (manager *SNetworkManager) validateEnsureZoneVpc(ctx context.Context, userCred mcclient.TokenCredential, input api.NetworkCreateInput) (*SWire, *SVpc, *SCloudregion, error) {
	zObj, err := validators.ValidateModel(ctx, userCred, ZoneManager, &input.Zone)
	if err != nil {
		return nil, nil, nil, err
	}
	z := zObj.(*SZone)

	vObj, err := validators.ValidateModel(ctx, userCred, VpcManager, &input.Vpc)
	if err != nil {
		return nil, nil, nil, err
	}
	v := vObj.(*SVpc)

	cr, err := z.GetRegion()
	if err != nil {
		return nil, nil, nil, err
	}
	// 华为云,ucloud wire zone_id 为空
	var wires []SWire
	if utils.IsInStringArray(cr.Provider, api.REGIONAL_NETWORK_PROVIDERS) {
		wires, err = WireManager.getWiresByVpcAndZone(v, nil)
	} else {
		wires, err = WireManager.getWiresByVpcAndZone(v, z)
	}

	if err != nil {
		return nil, nil, nil, err
	}
	if len(wires) > 1 {
		return nil, nil, nil, httperrors.NewConflictError("found %d wires for zone %s and vpc %s", len(wires), input.Zone, input.Vpc)
	}
	if len(wires) == 1 {
		return &wires[0], v, cr, nil
	}
	externalId := ""
	if cr.Provider == api.CLOUD_PROVIDER_CLOUDPODS {
		iVpc, err := v.GetIVpc(ctx)
		if err != nil {
			return nil, nil, nil, err
		}
		iWire, err := iVpc.CreateIWire(&cloudprovider.SWireCreateOptions{
			Name:      fmt.Sprintf("vpc-%s", v.Name),
			ZoneId:    z.ExternalId,
			Bandwidth: 10000,
			Mtu:       1500,
		})
		if err != nil {
			return nil, nil, nil, errors.Wrapf(err, "CreateIWire")
		}
		externalId = iWire.GetGlobalId()
	}

	// wire not found.  We auto create one for OneCloud vpc
	if cr.Provider == api.CLOUD_PROVIDER_ONECLOUD || cr.Provider == api.CLOUD_PROVIDER_CLOUDPODS {
		w, err := v.initWire(ctx, z, externalId)
		if err != nil {
			return nil, nil, nil, errors.Wrapf(err, "vpc %s init wire", v.Id)
		}
		return w, v, cr, nil
	}
	return nil, nil, nil, httperrors.NewNotFoundError("wire not found for zone %s and vpc %s", input.Zone, input.Vpc)
}

func (manager *SNetworkManager) ValidateCreateData(ctx context.Context, userCred mcclient.TokenCredential, ownerId mcclient.IIdentityProvider, query jsonutils.JSONObject, input api.NetworkCreateInput) (api.NetworkCreateInput, error) {
	if input.ServerType == "" {
		input.ServerType = api.NETWORK_TYPE_GUEST
	} else if !api.IsInNetworkTypes(input.ServerType, api.ALL_NETWORK_TYPES) {
		return input, httperrors.NewInputParameterError("Invalid server_type: %s", input.ServerType)
	}

	var (
		wire   *SWire
		vpc    *SVpc
		region *SCloudregion
		err    error
	)
	if input.WireId != "" {
		input.Wire = input.WireId
	}
	if input.Wire != "" {
		wire, vpc, region, err = manager.validateEnsureWire(ctx, userCred, input)
		if err != nil {
			return input, err
		}
	} else if input.Zone != "" && input.Vpc != "" {
		wire, vpc, region, err = manager.validateEnsureZoneVpc(ctx, userCred, input)
		if err != nil {
			return input, err
		}
	} else {
		return input, httperrors.NewInputParameterError("zone and vpc info required when wire is absent")
	}

	input.WireId = wire.Id
	if vpc.Status != api.VPC_STATUS_AVAILABLE {
		return input, httperrors.NewInvalidStatusError("VPC not ready")
	}
	if input.ServerType == api.NETWORK_TYPE_EIP && vpc.Id != api.DEFAULT_VPC_ID {
		return input, httperrors.NewInputParameterError("eip network can only exist in default vpc, got %s(%s)", vpc.Name, vpc.Id)
	}
	if input.ServerType != api.NETWORK_TYPE_EIP {
		input.BgpType = ""
	}
	// check class metadata
	if wire != nil {
		var projectId string
		if len(input.ProjectId) > 0 {
			projectId = input.ProjectId
		} else {
			projectId = ownerId.GetProjectId()
		}
		project, err := db.TenantCacheManager.FetchTenantById(ctx, projectId)
		if err != nil {
			return input, errors.Wrapf(err, "unable to fetch tenant by id %s", projectId)
		}
		ok, err := db.IsInSameClass(ctx, wire, project)
		if err != nil {
			return input, errors.Wrapf(err, "unable to check if wire and project is in same class")
		}
		if !ok {
			return input, httperrors.NewForbiddenError("the wire %s and project %s has different class metadata", wire.GetName(), project.GetName())
		}
	}

	if vpc.Id != api.DEFAULT_VPC_ID {
		// require prefix
		if len(input.GuestIpPrefix) == 0 && len(input.GuestIp6Start) > 0 && len(input.GuestIp6End) > 0 {
			return input, errors.Wrap(httperrors.ErrInputParameter, "guest_ip_prefix is required")
		}
		if len(input.GuestIp6Prefix) == 0 && len(input.GuestIp6Start) > 0 && len(input.GuestIp6End) > 0 {
			return input, errors.Wrap(httperrors.ErrInputParameter, "guest_ip6_prefix is required")
		}
	}

	{
		defaultVlanId := 1

		if input.VlanId == nil {
			input.VlanId = &defaultVlanId
		} else if *input.VlanId < 1 {
			input.VlanId = &defaultVlanId
		}

		if *input.VlanId > 4095 {
			return input, httperrors.NewInputParameterError("valid vlan id")
		}
	}

	{
		if len(input.IfnameHint) == 0 {
			input.IfnameHint = input.Name
		}
		var err error
		input.IfnameHint, err = manager.newIfnameHint(input.IfnameHint)
		if err != nil {
			return input, httperrors.NewBadRequestError("cannot derive valid ifname hint: %v", err)
		}
	}

	var (
		ipRange *netutils.IPV4AddrRange
		masklen int8
		netAddr netutils.IPV4Addr
	)
	if len(input.GuestIpPrefix) > 0 {
		prefix, err := netutils.NewIPV4Prefix(input.GuestIpPrefix)
		if err != nil {
			return input, httperrors.NewInputParameterError("ip_prefix error: %s", err)
		}
		ipRangeTmp := prefix.ToIPRange()
		ipRange = &ipRangeTmp
		masklen = prefix.MaskLen
		netAddr = prefix.Address.NetAddr(masklen)
		input.GuestIpMask = prefix.MaskLen
		if !isValidIpv4MaskLen(masklen) {
			return input, httperrors.NewInputParameterError("subnet masklen should be smaller than 30")
		}
		// 根据掩码得到合法的GuestIpPrefix
		input.GuestIpPrefix = prefix.String()

		if region.Provider == api.CLOUD_PROVIDER_ONECLOUD && vpc.Id != api.DEFAULT_VPC_ID {
			// reserve addresses for onecloud vpc networks
			gateway := netAddr.StepUp()
			brdAddr := gateway.BroadcastAddr(masklen)
			// NOTE
			//
			//  - reserve the 1st addr as gateway
			//  - reserve the last ip for broadcasting
			//  - reserve the 2nd-to-last for possible future use
			//
			// We do not allow split 192.168.1.0/24 into multiple ranges
			// like
			//
			//  - 192.168.1.50-192.168.1.100,
			//  - 192.168.1.100-192.168.1.200
			//
			//  This could complicate gateway setting and topology
			//  management without much benefit to end users
			ipStart := gateway.StepUp()
			ipEnd := brdAddr.StepDown().StepDown()
			ipRange.Set(ipStart, ipEnd)
			input.GuestGateway = gateway.String()
		}
	} else if len(input.GuestIpStart) > 0 && len(input.GuestIpEnd) > 0 {
		if !isValidIpv4MaskLen(input.GuestIpMask) {
			return input, httperrors.NewInputParameterError("Invalid masklen %d", input.GuestIpMask)
		}
		ipStart, err := netutils.NewIPV4Addr(input.GuestIpStart)
		if err != nil {
			return input, httperrors.NewInputParameterError("Invalid start ip: %s %s", input.GuestIpStart, err)
		}
		ipEnd, err := netutils.NewIPV4Addr(input.GuestIpEnd)
		if err != nil {
			return input, httperrors.NewInputParameterError("invalid end ip: %s %s", input.GuestIpEnd, err)
		}
		ipRangeTpm := netutils.NewIPV4AddrRange(ipStart, ipEnd)
		ipRange = &ipRangeTpm
		masklen = input.GuestIpMask
		netAddr = ipStart.NetAddr(masklen)
		if ipEnd.NetAddr(masklen) != netAddr {
			return input, httperrors.NewInputParameterError("start and end ip not in the same subnet")
		}
	}

	var (
		ipRange6 *netutils.IPV6AddrRange
		masklen6 uint8
		netAddr6 netutils.IPV6Addr
	)
	if len(input.GuestIp6Prefix) > 0 {
		prefix, err := netutils.NewIPV6Prefix(input.GuestIp6Prefix)
		if err != nil {
			return input, httperrors.NewInputParameterError("ip_prefix error: %s", err)
		}
		ipRange6tmp := prefix.ToIPRange()
		ipRange6 = &ipRange6tmp
		masklen6 = prefix.MaskLen
		netAddr6 = prefix.Address.NetAddr(masklen6)
		input.GuestIp6Mask = prefix.MaskLen
		if !isValidIpv6MaskLen(masklen6) {
			return input, httperrors.NewInputParameterError("ipv6 subnet masklen should be between 48~126")
		}
		// 根据掩码得到合法的GuestIp6Prefix
		input.GuestIp6Prefix = prefix.String()

		if region.Provider == api.CLOUD_PROVIDER_ONECLOUD && vpc.Id != api.DEFAULT_VPC_ID {
			// reserve addresses for onecloud vpc networks
			gateway := netAddr6.StepUp()
			brdAddr := gateway.BroadcastAddr(masklen6)
			// NOTE
			//
			//  - reserve the 1st addr as gateway
			//  - reserve the last ip for broadcasting
			//  - reserve the 2nd-to-last for possible future use
			//
			//  This could complicate gateway setting and topology
			//  management without much benefit to end users
			ipStart := gateway.StepUp()
			ipEnd := brdAddr.StepDown().StepDown()
			ipRange6.Set(ipStart, ipEnd)
			input.GuestGateway6 = gateway.String()
		}
	} else if len(input.GuestIp6Start) > 0 && len(input.GuestIp6End) > 0 {
		if !isValidIpv6MaskLen(input.GuestIp6Mask) {
			return input, httperrors.NewInputParameterError("Invalid ipv6 masklen %d", input.GuestIp6Mask)
		}
		ip6Start, err := netutils.NewIPV6Addr(input.GuestIp6Start)
		if err != nil {
			return input, httperrors.NewInputParameterError("Invalid start v6 ip: %s %s", input.GuestIp6Start, err)
		}
		ip6End, err := netutils.NewIPV6Addr(input.GuestIp6End)
		if err != nil {
			return input, httperrors.NewInputParameterError("invalid end v6 ip: %s %s", input.GuestIp6End, err)
		}
		ipRange6tmp := netutils.NewIPV6AddrRange(ip6Start, ip6End)
		ipRange6 = &ipRange6tmp
		masklen6 = input.GuestIp6Mask
		netAddr6 = ip6Start.NetAddr(masklen6)
		if !ip6End.NetAddr(masklen6).Equals(netAddr6) {
			return input, httperrors.NewInputParameterError("v6 start and end ip not in the same subnet")
		}
	}

	if ipRange == nil && ipRange6 == nil {
		return input, httperrors.NewBadRequestError("No valid ipv4/ipv6 address input")
	}

	// do not set default dns
	// if len(input.GuestDns) == 0 {
	// 	input.GuestDns = options.Options.DNSServer
	// }

	for key, ipStr := range map[string]string{
		"guest_gateway":  input.GuestGateway,
		"guest_dns":      input.GuestDns,
		"guest_dhcp":     input.GuestDHCP,
		"guest_ntp":      input.GuestNtp,
		"guest_gateway6": input.GuestGateway6,
	} {
		if ipStr == "" {
			continue
		}
		if key == "guest_dhcp" || key == "guest_dns" {
			ipList := strings.Split(ipStr, ",")
			for _, ipstr := range ipList {
				if !regutils.MatchIPAddr(ipstr) {
					return input, httperrors.NewInputParameterError("%s: Invalid IP address %s", key, ipstr)
				}
			}
		} else if key == "guest_ntp" {
			ipList := strings.Split(ipStr, ",")
			for _, ipstr := range ipList {
				if !regutils.MatchDomainName(ipstr) && !regutils.MatchIPAddr(ipstr) {
					return input, httperrors.NewInputParameterError("%s: Invalid domain name or IP address %s", key, ipstr)
				}
			}
		} else if !regutils.MatchIPAddr(ipStr) {
			return input, httperrors.NewInputParameterError("%s: Invalid IP address %s", key, ipStr)
		}
	}
	if input.GuestGateway != "" {
		addr, err := netutils.NewIPV4Addr(input.GuestGateway)
		if err != nil {
			return input, httperrors.NewInputParameterError("bad gateway ip: %v", err)
		}
		if addr.NetAddr(masklen) != netAddr {
			return input, httperrors.NewInputParameterError("gateway ip must be in the same subnet as start, end ip")
		}
	}
	if input.GuestGateway6 != "" {
		addr, err := netutils.NewIPV6Addr(input.GuestGateway6)
		if err != nil {
			return input, httperrors.NewInputParameterError("bad v6 gateway ip: %v", err)
		}
		if !addr.NetAddr(masklen6).Equals(netAddr6) {
			return input, httperrors.NewInputParameterError("ipv6 gateway ip must be in the same subnet as start, end v6 ip")
		}
	}

	{
		if ipRange != nil && !vpc.containsIPV4Range(*ipRange) {
			return input, httperrors.NewInputParameterError("Network not in range of VPC cidrblock %s", vpc.CidrBlock)
		}

		if ipRange6 != nil {
			if !vpc.containsIPV6Range(*ipRange6) {
				return input, httperrors.NewInputParameterError("Network not in range of VPC ipv6 cidrblock %s", vpc.CidrBlock6)
			}
		}
	}

	{
		provider := wire.GetProviderName()
		nets, err := vpc.GetNetworksByProvider(provider)
		if err != nil {
			return input, httperrors.NewInternalServerError("fail to GetNetworks of vpc: %v", err)
		}
		if ipRange != nil && isOverlapNetworks(nets, *ipRange) {
			return input, httperrors.NewInputParameterError("Conflict address space with existing networks in vpc %q", vpc.GetName())
		}
		if ipRange6 != nil && isOverlapNetworks6(nets, *ipRange6) {
			return input, httperrors.NewInputParameterError("Conflict address space with existing networks in vpc %q", vpc.GetName())
		}
	}

	if ipRange != nil {
		input.GuestIpStart = ipRange.StartIp().String()
		input.GuestIpEnd = ipRange.EndIp().String()
	}

	if ipRange6 != nil {
		// validate v6 ip addr
		input.GuestIp6Start = ipRange6.StartIp().String()
		input.GuestIp6End = ipRange6.EndIp().String()
	}

	input.SharableVirtualResourceCreateInput, err = manager.SSharableVirtualResourceBaseManager.ValidateCreateData(ctx, userCred, ownerId, query, input.SharableVirtualResourceCreateInput)
	if err != nil {
		return input, err
	}
	return input, nil
}

func (snet *SNetwork) validateUpdateData(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input api.NetworkUpdateInput) (api.NetworkUpdateInput, error) {
	var (
		netAddr  netutils.IPV4Addr
		masklen  int8
		netAddr6 netutils.IPV6Addr
		masklen6 uint8
		err      error
	)

	if input.GuestIpMask > 0 {
		if !snet.isManaged() && !isValidIpv4MaskLen(input.GuestIpMask) {
			return input, httperrors.NewInputParameterError("Invalid masklen %d", input.GuestIpMask)
		}
		masklen = input.GuestIpMask
	} else {
		masklen = snet.GuestIpMask
	}

	if input.GuestIp6Mask != nil && *input.GuestIp6Mask > 0 {
		if !snet.isManaged() && !isValidIpv6MaskLen(*input.GuestIp6Mask) {
			return input, httperrors.NewInputParameterError("Invalid ipv6 masklen %d", *input.GuestIp6Mask)
		}
		masklen6 = *input.GuestIp6Mask
	} else {
		masklen6 = snet.GuestIp6Mask
	}

	if input.GuestIpStart != "" || input.GuestIpEnd != "" {
		var (
			startIp netutils.IPV4Addr
			endIp   netutils.IPV4Addr
		)
		if input.GuestIpStart != "" {
			startIp, err = netutils.NewIPV4Addr(input.GuestIpStart)
			if err != nil {
				return input, httperrors.NewInputParameterError("Invalid start ip: %s %s", input.GuestIpStart, err)
			}
		} else {
			startIp, _ = netutils.NewIPV4Addr(snet.GuestIpStart)
		}
		if input.GuestIpEnd != "" {
			endIp, err = netutils.NewIPV4Addr(input.GuestIpEnd)
			if err != nil {
				return input, httperrors.NewInputParameterError("invalid end ip: %s %s", input.GuestIpEnd, err)
			}
		} else {
			endIp, _ = netutils.NewIPV4Addr(snet.GuestIpEnd)
		}

		netRange := netutils.NewIPV4AddrRange(startIp, endIp)

		nets := NetworkManager.getAllNetworks(snet.WireId, snet.Id)
		if nets == nil {
			return input, httperrors.NewInternalServerError("query all networks fail")
		}

		if isOverlapNetworks(nets, netRange) {
			return input, httperrors.NewInputParameterError("Conflict address space with existing networks")
		}

		vpc, _ := snet.GetVpc()
		if !vpc.containsIPV4Range(netRange) {
			return input, httperrors.NewInputParameterError("Network not in range of VPC cidrblock %s", vpc.CidrBlock)
		}

		usedMap := snet.GetUsedAddresses(ctx)
		for usedIpStr := range usedMap {
			if usedIp, err := netutils.NewIPV4Addr(usedIpStr); err == nil && !netRange.Contains(usedIp) {
				return input, httperrors.NewInputParameterError("Address %s been assigned out of new range", usedIpStr)
			}
		}

		input.GuestIpStart = netRange.StartIp().String()
		input.GuestIpEnd = netRange.EndIp().String()
		netAddr = startIp.NetAddr(masklen)
		if endIp.NetAddr(masklen) != netAddr {
			return input, httperrors.NewInputParameterError("start, end ip must be in the same subnet")
		}
	} else {
		startIp, _ := netutils.NewIPV4Addr(snet.GuestIpStart)
		netAddr = startIp.NetAddr(masklen)
	}

	if (input.GuestIp6Start != nil && len(*input.GuestIp6Start) > 0) || (input.GuestIp6End != nil && len(*input.GuestIp6End) > 0) {
		var (
			startIp netutils.IPV6Addr
			endIp   netutils.IPV6Addr
		)
		if input.GuestIp6Start != nil && len(*input.GuestIp6Start) > 0 {
			startIp, err = netutils.NewIPV6Addr(*input.GuestIp6Start)
			if err != nil {
				return input, httperrors.NewInputParameterError("Invalid start v6 ip: %s %s", *input.GuestIp6Start, err)
			}
		} else if len(snet.GuestIp6Start) > 0 {
			startIp, _ = netutils.NewIPV6Addr(snet.GuestIp6Start)
		} else {
			return input, httperrors.NewInputParameterError("no start v6 ip")
		}
		if input.GuestIp6End != nil && len(*input.GuestIp6End) > 0 {
			endIp, err = netutils.NewIPV6Addr(*input.GuestIp6End)
			if err != nil {
				return input, httperrors.NewInputParameterError("invalid end v6 ip: %s %s", *input.GuestIp6End, err)
			}
		} else if len(snet.GuestIp6End) > 0 {
			endIp, _ = netutils.NewIPV6Addr(snet.GuestIp6End)
		} else {
			return input, httperrors.NewInputParameterError("no end v6 ip")
		}

		netRange := netutils.NewIPV6AddrRange(startIp, endIp)

		nets := NetworkManager.getAllNetworks(snet.WireId, snet.Id)
		if nets == nil {
			return input, httperrors.NewInternalServerError("query all networks fail")
		}

		if isOverlapNetworks6(nets, netRange) {
			return input, httperrors.NewInputParameterError("Conflict v6 address space with existing networks")
		}

		vpc, _ := snet.GetVpc()
		if !vpc.containsIPV6Range(netRange) {
			return input, httperrors.NewInputParameterError("Network not in range of VPC v6 cidrblock %s", vpc.CidrBlock6)
		}

		usedMap := snet.GetUsedAddresses6(ctx)
		for usedIpStr := range usedMap {
			if usedIp, err := netutils.NewIPV6Addr(usedIpStr); err == nil && !netRange.Contains(usedIp) {
				return input, httperrors.NewInputParameterError("v6 address %s been assigned out of new range", usedIpStr)
			}
		}

		startIpStr := netRange.StartIp().String()
		endIpStr := netRange.EndIp().String()
		input.GuestIp6Start = &startIpStr
		input.GuestIp6End = &endIpStr
		netAddr6 = netRange.StartIp().NetAddr(masklen6)
		if !netRange.EndIp().NetAddr(masklen6).Equals(netAddr6) {
			return input, httperrors.NewInputParameterError("start, end v6 ip must be in the same subnet")
		}
	} else if len(snet.GuestIp6Start) > 0 {
		startIp, _ := netutils.NewIPV6Addr(snet.GuestIp6Start)
		netAddr6 = startIp.NetAddr(masklen6)
	}

	for key, ipStr := range map[string]*string{
		"guest_gateway": input.GuestGateway,
		"guest_dns":     input.GuestDns,
		"guest_dhcp":    input.GuestDhcp,
		"guest_ntp":     input.GuestNtp,

		"guest_gateway6": input.GuestGateway6,
	} {
		if ipStr == nil || len(*ipStr) == 0 {
			continue
		}
		if key == "guest_dhcp" || key == "guest_dns" {
			ipList := strings.Split(*ipStr, ",")
			for _, ipstr := range ipList {
				if !regutils.MatchIPAddr(ipstr) {
					return input, httperrors.NewInputParameterError("%s: Invalid IP address %s", key, ipstr)
				}
			}
		} else if key == "guest_ntp" {
			ipList := strings.Split(*ipStr, ",")
			for _, ipstr := range ipList {
				if !regutils.MatchDomainName(ipstr) && !regutils.MatchIPAddr(ipstr) {
					return input, httperrors.NewInputParameterError("%s: Invalid domain name or IP address  %s", key, ipstr)
				}
			}
		} else if !regutils.MatchIPAddr(*ipStr) {
			return input, httperrors.NewInputParameterError("%s: Invalid IP address %s", key, *ipStr)
		}
	}
	if input.GuestGateway != nil && len(*input.GuestGateway) > 0 {
		addr, err := netutils.NewIPV4Addr(*input.GuestGateway)
		if err != nil {
			return input, httperrors.NewInputParameterError("bad gateway ip: %v", err)
		}
		if addr.NetAddr(masklen) != netAddr {
			return input, httperrors.NewInputParameterError("gateway ip must be in the same subnet as start, end ip")
		}
	}
	if input.GuestGateway6 != nil && len(*input.GuestGateway6) > 0 {
		addr, err := netutils.NewIPV6Addr(*input.GuestGateway6)
		if err != nil {
			return input, httperrors.NewInputParameterError("bad ipv6 gateway ip: %v", err)
		}
		if !addr.NetAddr(masklen6).Equals(netAddr6) {
			return input, httperrors.NewInputParameterError("ipv6 gateway ip must be in the same subnet as start, end v6 ip")
		}
	}

	if input.IsAutoAlloc != nil && *input.IsAutoAlloc {
		if snet.ServerType != api.NETWORK_TYPE_GUEST && snet.ServerType != api.NETWORK_TYPE_HOSTLOCAL {
			return input, httperrors.NewInputParameterError("network server_type %s not support auto alloc", snet.ServerType)
		}
	}

	if len(input.ServerType) > 0 && !api.IsInNetworkTypes(input.ServerType, api.ALL_NETWORK_TYPES) {
		return input, errors.Wrapf(httperrors.ErrInputParameter, "invalid server_type %q", input.ServerType)
	}

	return input, nil
}

func (snet *SNetwork) ValidateUpdateData(
	ctx context.Context,
	userCred mcclient.TokenCredential,
	query jsonutils.JSONObject,
	input api.NetworkUpdateInput,
) (api.NetworkUpdateInput, error) {
	if snet.isManaged() {
		// managed network, not allow to update
		input.GuestIpStart = ""
		input.GuestIpEnd = ""
		input.GuestIpMask = 0
		input.GuestGateway = nil
		input.GuestDns = nil
		input.GuestDomain = nil
		input.GuestDhcp = nil
		input.GuestNtp = nil

		input.GuestIp6Start = nil
		input.GuestIp6End = nil
		input.GuestIp6Mask = nil
		input.GuestGateway6 = nil
	}
	var err error
	input, err = snet.validateUpdateData(ctx, userCred, query, input)
	if err != nil {
		return input, errors.Wrap(err, "validateUpdateData")
	}

	input.SharableVirtualResourceBaseUpdateInput, err = snet.SSharableVirtualResourceBase.ValidateUpdateData(ctx, userCred, query, input.SharableVirtualResourceBaseUpdateInput)
	if err != nil {
		return input, errors.Wrap(err, "SSharableVirtualResourceBase.ValidateUpdateData")
	}
	return input, nil
}

func (manager *SNetworkManager) getAllNetworks(wireId, excludeId string) []SNetwork {
	nets := make([]SNetwork, 0)
	q := manager.Query().Equals("wire_id", wireId)
	if len(excludeId) > 0 {
		q = q.NotEquals("id", excludeId)
	}
	err := db.FetchModelObjects(manager, q, &nets)
	if err != nil {
		log.Errorf("getAllNetworks fail %s", err)
		return nil
	}
	return nets
}

func isOverlapNetworksAddr(nets []SNetwork, startIp, endIp netutils.IPV4Addr) bool {
	ipRange := netutils.NewIPV4AddrRange(startIp, endIp)
	for i := 0; i < len(nets); i += 1 {
		ipRange2 := nets[i].getIPRange()
		if ipRange2 != nil && ipRange2.IsOverlap(ipRange) {
			return true
		}
	}
	return false
}

func isOverlapNetworks(nets []SNetwork, ipRange netutils.IPV4AddrRange) bool {
	for i := 0; i < len(nets); i += 1 {
		ipRange2 := nets[i].getIPRange()
		if ipRange2 != nil && ipRange2.IsOverlap(ipRange) {
			return true
		}
	}
	return false
}

func isOverlapNetworks6(nets []SNetwork, ipRange netutils.IPV6AddrRange) bool {
	for i := 0; i < len(nets); i += 1 {
		ipRange2 := nets[i].getIPRange6()
		if ipRange2 != nil && ipRange2.IsOverlap(ipRange) {
			return true
		}
	}
	return false
}

func (snet *SNetwork) IsManaged() bool {
	wire, _ := snet.GetWire()
	if wire == nil {
		return false
	}
	return wire.IsManaged()
}

func (snet *SNetwork) CustomizeCreate(ctx context.Context, userCred mcclient.TokenCredential, ownerId mcclient.IIdentityProvider, query jsonutils.JSONObject, data jsonutils.JSONObject) error {
	if !data.Contains("public_scope") {
		if snet.ServerType == api.NETWORK_TYPE_GUEST && !snet.IsManaged() {
			wire, _ := snet.GetWire()
			if db.IsAdminAllowPerform(ctx, userCred, snet, "public") && ownerId.GetProjectDomainId() == userCred.GetProjectDomainId() && wire != nil && wire.IsPublic && wire.PublicScope == string(rbacscope.ScopeSystem) {
				snet.SetShare(rbacscope.ScopeSystem)
			} else if db.IsDomainAllowPerform(ctx, userCred, snet, "public") && ownerId.GetProjectId() == userCred.GetProjectId() && consts.GetNonDefaultDomainProjects() {
				// only if non_default_domain_projects turned on, share to domain
				snet.SetShare(rbacscope.ScopeDomain)
			} else {
				snet.SetShare(rbacscope.ScopeNone)
			}
		} else {
			snet.SetShare(rbacscope.ScopeNone)
		}
		data.(*jsonutils.JSONDict).Set("public_scope", jsonutils.NewString(snet.PublicScope))
	}
	return snet.SSharableVirtualResourceBase.CustomizeCreate(ctx, userCred, ownerId, query, data)
}

func (net *SNetwork) PostCreate(ctx context.Context, userCred mcclient.TokenCredential, ownerId mcclient.IIdentityProvider, query jsonutils.JSONObject, data jsonutils.JSONObject) {
	net.SSharableVirtualResourceBase.PostCreate(ctx, userCred, ownerId, query, data)
	vpc, _ := net.GetVpc()
	if vpc != nil && vpc.IsManaged() {
		task, err := taskman.TaskManager.NewTask(ctx, "NetworkCreateTask", net, userCred, data.(*jsonutils.JSONDict), "", "", nil)
		if err != nil {
			net.SetStatus(ctx, userCred, apis.STATUS_CREATE_FAILED, err.Error())
			return
		}
		task.ScheduleRun(nil)
	} else {
		{
			err := net.syncAdditionalWires(ctx, nil)
			if err != nil {
				log.Errorf("syncAdditionalWires error: %s", err)
			}
		}
		net.SetStatus(ctx, userCred, api.NETWORK_STATUS_AVAILABLE, "")
		if err := net.ClearSchedDescCache(); err != nil {
			log.Errorf("network post create clear schedcache error: %v", err)
		}
		notifyclient.EventNotify(ctx, userCred, notifyclient.SEventNotifyParam{
			Obj:    net,
			Action: notifyclient.ActionCreate,
		})
	}
	// reserve gateway IP
	{
		err := net.reserveGuestGateway(ctx, userCred)
		if err != nil {
			log.Errorf("reserveGuestGateway fail %s", err)
		}
	}
}

func (snet *SNetwork) reserveGuestGateway(ctx context.Context, userCred mcclient.TokenCredential) error {
	ipRange := snet.GetIPRange()
	if snet.GuestGateway != "" {
		gatewayIp, _ := netutils.NewIPV4Addr(snet.GuestGateway)
		if ipRange.Contains(gatewayIp) {
			err := snet.reserveIpWithDurationAndStatus(ctx, userCred, snet.GuestGateway, "Reserve GuestGateway IP", 0, api.RESERVEDIP_STATUS_ONLINE)
			if err != nil {
				return errors.Wrap(err, "reserveIpWithDurationAndStatus")
			}
		}
	}
	return nil
}

func (snet *SNetwork) GetPrefix() (netutils.IPV4Prefix, error) {
	addr, err := netutils.NewIPV4Addr(snet.GuestIpStart)
	if err != nil {
		return netutils.IPV4Prefix{}, err
	}
	addr = addr.NetAddr(snet.GuestIpMask)
	return netutils.IPV4Prefix{Address: addr, MaskLen: snet.GuestIpMask}, nil
}

func (snet *SNetwork) Delete(ctx context.Context, userCred mcclient.TokenCredential) error {
	log.Infof("SNetwork delete do nothing")
	snet.SetStatus(ctx, userCred, api.NETWORK_STATUS_START_DELETE, "")
	return nil
}

func (snet *SNetwork) CustomizeDelete(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, data jsonutils.JSONObject) error {
	if len(snet.ExternalId) > 0 {
		return snet.StartDeleteNetworkTask(ctx, userCred)
	} else {
		return snet.RealDelete(ctx, userCred)
	}
}

func (snet *SNetwork) RealDelete(ctx context.Context, userCred mcclient.TokenCredential) error {
	DeleteResourceJointSchedtags(snet, ctx, userCred)
	db.OpsLog.LogEvent(snet, db.ACT_DELOCATE, snet.GetShortDesc(ctx), userCred)
	snet.SetStatus(ctx, userCred, api.NETWORK_STATUS_DELETED, "real delete")
	networkinterfaces, err := snet.GetNetworkInterfaces()
	if err != nil {
		return errors.Wrap(err, "GetNetworkInterfaces")
	}
	for i := range networkinterfaces {
		err = networkinterfaces[i].purge(ctx, userCred)
		if err != nil {
			return errors.Wrapf(err, "networkinterface.purge %s(%s)", networkinterfaces[i].Name, networkinterfaces[i].Id)
		}
	}
	reservedIps := ReservedipManager.GetReservedIPs(snet)
	for i := range reservedIps {
		err = reservedIps[i].Release(ctx, userCred, snet)
		if err != nil {
			return errors.Wrapf(err, "reservedIps.Release %s/%s(%d)", reservedIps[i].IpAddr, reservedIps[i].Ip6Addr, reservedIps[i].Id)
		}
	}
	gns, err := snet.GetGuestnetworks() // delete virtual nics
	if err != nil {
		return errors.Wrapf(err, "GetGuestnetworks")
	}
	for i := range gns {
		err = gns[i].Delete(ctx, userCred)
		if err != nil {
			return errors.Wrapf(err, "delete virtual nic %s(%d)", gns[i].Ifname, gns[i].RowId)
		}
	}
	if err := snet.SSharableVirtualResourceBase.Delete(ctx, userCred); err != nil {
		return err
	}
	if err := NetworkAdditionalWireManager.DeleteNetwork(ctx, snet.Id); err != nil {
		return errors.Wrap(err, "NetworkAdditionalWireManager.DeleteNetwork")
	}
	snet.ClearSchedDescCache()
	return nil
}

func (snet *SNetwork) StartDeleteNetworkTask(ctx context.Context, userCred mcclient.TokenCredential) error {
	task, err := taskman.TaskManager.NewTask(ctx, "NetworkDeleteTask", snet, userCred, nil, "", "", nil)
	if err != nil {
		log.Errorf("Start NetworkDeleteTask fail %s", err)
		return err
	}
	task.ScheduleRun(nil)
	return nil
}

func (snet *SNetwork) GetINetwork(ctx context.Context) (cloudprovider.ICloudNetwork, error) {
	wire, err := snet.GetWire()
	if err != nil {
		return nil, errors.Wrapf(err, "GetWire")
	}
	iwire, err := wire.GetIWire(ctx)
	if err != nil {
		return nil, err
	}
	return iwire.GetINetworkById(snet.GetExternalId())
}

func (snet *SNetwork) isManaged() bool {
	if len(snet.ExternalId) > 0 {
		return true
	} else {
		return false
	}
}

func (snet *SNetwork) isOneCloudVpcNetwork() bool {
	return IsOneCloudVpcResource(snet)
}

/*func parseIpToIntArray(ip string) ([]int, error) {
	ipSp := strings.Split(strings.Trim(ip, "."), ".")
	if len(ipSp) > 4 {
		return nil, httperrors.NewInputParameterError("Parse Ip Failed")
	}
	ipIa := []int{}
	for i := 0; i < len(ipSp); i++ {
		val, err := strconv.Atoi(ipSp[i])
		if err != nil {
			return nil, httperrors.NewInputParameterError("Parse Ip Failed")
		}
		if val < 0 || val > 255 {
			return nil, httperrors.NewInputParameterError("Parse Ip Failed")
		}
		ipIa = append(ipIa, val)
	}
	return ipIa, nil
}*/

// IP子网列表
func (manager *SNetworkManager) ListItemFilter(
	ctx context.Context,
	q *sqlchemy.SQuery,
	userCred mcclient.TokenCredential,
	input api.NetworkListInput,
) (*sqlchemy.SQuery, error) {
	var err error

	q, err = manager.SSharableVirtualResourceBaseManager.ListItemFilter(ctx, q, userCred, input.SharableVirtualResourceListInput)
	if err != nil {
		return nil, errors.Wrap(err, "SSharableVirtualResourceBaseManager.ListItemFilter")
	}
	q, err = manager.SExternalizedResourceBaseManager.ListItemFilter(ctx, q, userCred, input.ExternalizedResourceBaseListInput)
	if err != nil {
		return nil, errors.Wrap(err, "SExternalizedResourceBaseManager.ListItemFilter")
	}
	{
		wireFilter := input.WireResourceInput
		input.Wire = ""
		input.WireId = ""
		q, err = manager.SWireResourceBaseManager.ListItemFilter(ctx, q, userCred, input.WireFilterListInput)
		if err != nil {
			return nil, errors.Wrap(err, "SWireResourceBaseManager.ListItemFilter")
		}
		if len(wireFilter.WireId) > 0 {
			wireObj, err := WireManager.FetchByIdOrName(ctx, userCred, wireFilter.WireId)
			if err != nil {
				if errors.Cause(err) == sql.ErrNoRows {
					return nil, httperrors.NewResourceNotFoundError2(WireManager.Keyword(), wireFilter.WireId)
				} else {
					return nil, errors.Wrapf(err, "WireManager.FetchByIdOrName %s", wireFilter.WireId)
				}
			}
			wireFilter.WireId = wireObj.GetId()
			wireFilter.Wire = wireObj.GetName()
			q = q.Filter(sqlchemy.OR(
				sqlchemy.Equals(q.Field("wire_id"), wireFilter.WireId),
				sqlchemy.In(q.Field("id"), NetworkAdditionalWireManager.networkIdQuery(wireFilter.WireId).SubQuery()),
			))
		}
		input.WireResourceInput = wireFilter
	}

	if len(input.RouteTableId) > 0 {
		sq := RouteTableAssociationManager.Query("associated_resource_id").Equals("route_table_id", input.RouteTableId).Equals("association_type", string(cloudprovider.RouteTableAssociaToSubnet))
		q = q.In("id", sq.SubQuery())
	}

	if input.Usable != nil && *input.Usable {
		regions := CloudregionManager.Query("id").Equals("status", api.CLOUD_REGION_STATUS_INSERVER)
		zones := ZoneManager.Query("id").Equals("status", api.ZONE_ENABLE).In("cloudregion_id", regions)
		providerSQ := usableCloudProviders()
		_vpcs := VpcManager.Query("id").Equals("status", api.VPC_STATUS_AVAILABLE)
		vpcs := _vpcs.Filter(sqlchemy.OR(
			sqlchemy.In(_vpcs.Field("manager_id"), providerSQ),
			sqlchemy.IsNullOrEmpty(_vpcs.Field("manager_id")),
		))

		wires := WireManager.Query("id")
		wires = wires.In("vpc_id", vpcs).
			Filter(sqlchemy.OR(sqlchemy.IsNullOrEmpty(wires.Field("zone_id")), sqlchemy.In(wires.Field("zone_id"), zones)))
		q = q.In("wire_id", wires).Equals("status", api.NETWORK_STATUS_AVAILABLE)
	}

	if len(input.HostType) > 0 || len(input.HostId) > 0 {
		classicWiresIdQ := WireManager.Query("id").Equals("vpc_id", api.DEFAULT_VPC_ID)
		netifs := NetInterfaceManager.Query("wire_id", "baremetal_id").SubQuery()
		classicWiresIdQ = classicWiresIdQ.Join(netifs, sqlchemy.Equals(netifs.Field("wire_id"), classicWiresIdQ.Field("id")))
		hosts := HostManager.Query("id")
		if len(input.HostType) > 0 {
			hosts = hosts.Equals("host_type", input.HostType)
		}
		if len(input.HostId) > 0 {
			hosts = hosts.In("id", input.HostId)
		}
		hostsQ := hosts.SubQuery()
		classicWiresIdQ = classicWiresIdQ.Join(hostsQ, sqlchemy.Equals(netifs.Field("baremetal_id"), hostsQ.Field("id")))

		wireIdQ := classicWiresIdQ.SubQuery()

		if input.HostType == api.HOST_TYPE_HYPERVISOR {
			// should consider VPC network
			vpcHostQ := HostManager.Query().IsNotEmpty("ovn_version")
			if len(input.HostType) > 0 {
				vpcHostQ = vpcHostQ.Equals("host_type", input.HostType)
			}
			if len(input.HostId) > 0 {
				vpcHostQ = vpcHostQ.In("id", input.HostId)
			}
			vpcHostCnt, err := vpcHostQ.CountWithError()
			if err != nil {
				return nil, errors.Wrap(err, "vpcHostQ.CountWithError")
			}
			if vpcHostCnt > 0 {
				vpcWiresIdQ := WireManager.Query("id").NotEquals("vpc_id", api.DEFAULT_VPC_ID)

				wireIdUnion := sqlchemy.Union(classicWiresIdQ, vpcWiresIdQ)
				wireIdQ = wireIdUnion.Query().SubQuery()
			}
		}
		additionalQ := NetworkAdditionalWireManager.Query("network_id")
		additionalQ = additionalQ.Join(wireIdQ, sqlchemy.Equals(wireIdQ.Field("id"), additionalQ.Field("wire_id")))
		q = q.Filter(sqlchemy.OR(
			sqlchemy.In(q.Field("wire_id"), wireIdQ),
			sqlchemy.In(q.Field("id"), additionalQ.SubQuery()),
		))
	}

	storageStr := input.StorageId
	if len(storageStr) > 0 {
		storage, err := StorageManager.FetchByIdOrName(ctx, userCred, storageStr)
		if err != nil {
			return nil, errors.Wrapf(err, "unable to fetch storage %q", storageStr)
		}
		hoststorages := HoststorageManager.Query("host_id").Equals("storage_id", storage.GetId()).SubQuery()
		hostSq := HostManager.Query("id").In("id", hoststorages).SubQuery()
		sq := NetInterfaceManager.Query("wire_id").In("baremetal_id", hostSq)

		ovnHosts := HostManager.Query().In("id", hoststorages).IsNotEmpty("ovn_version")
		if n, _ := ovnHosts.CountWithError(); n > 0 {
			wireQuery := WireManager.Query("id").IsNotNull("vpc_id")
			q = q.Filter(sqlchemy.OR(
				sqlchemy.In(q.Field("wire_id"), wireQuery.SubQuery()),
				sqlchemy.In(q.Field("wire_id"), sq.SubQuery())),
			)
		} else {
			q = q.Filter(sqlchemy.In(q.Field("wire_id"), sq.SubQuery()))
		}
	}

	ips := []string{}
	exactIpMatch := false
	if len(input.Ip) > 0 {
		exactIpMatch = true
		ips = input.Ip
	} else if len(input.IpMatch) > 0 {
		ips = input.IpMatch
	}

	if len(ips) > 0 {
		conditions := []sqlchemy.ICondition{}
		for _, ipstr := range ips {
			if len(ipstr) == 0 {
				continue
			}

			var ipCondtion sqlchemy.ICondition
			if ip4Addr, err := netutils.NewIPV4Addr(ipstr); err == nil {
				// ipv4 address, exactly
				ipStart := sqlchemy.INET_ATON(q.Field("guest_ip_start"))
				ipEnd := sqlchemy.INET_ATON(q.Field("guest_ip_end"))

				ipConst := sqlchemy.INET_ATON(q.StringField(ip4Addr.String()))

				ipCondtion = sqlchemy.AND(
					sqlchemy.IsNotNull(q.Field("guest_ip_start")),
					sqlchemy.IsNotNull(q.Field("guest_ip_end")),
					sqlchemy.IsNotEmpty(q.Field("guest_ip_start")),
					sqlchemy.IsNotEmpty(q.Field("guest_ip_end")),
					sqlchemy.GE(ipEnd, ipConst),
					sqlchemy.LE(ipStart, ipConst),
				)
				if !exactIpMatch {
					ipCondtion = sqlchemy.OR(
						ipCondtion,
						sqlchemy.Contains(q.Field("guest_ip_start"), ipstr),
						sqlchemy.Contains(q.Field("guest_ip_end"), ipstr),
					)
				}
			} else if ip6Addr, err := netutils.NewIPV6Addr(ipstr); err == nil {
				// ipv6 address, exactly
				ipStart := sqlchemy.INET6_ATON(q.Field("guest_ip6_start"))
				ipEnd := sqlchemy.INET6_ATON(q.Field("guest_ip6_end"))

				ipConst := sqlchemy.INET6_ATON(q.StringField(ip6Addr.String()))

				ipCondtion = sqlchemy.AND(
					sqlchemy.IsNotNull(q.Field("guest_ip6_start")),
					sqlchemy.IsNotNull(q.Field("guest_ip6_end")),
					sqlchemy.IsNotEmpty(q.Field("guest_ip6_start")),
					sqlchemy.IsNotEmpty(q.Field("guest_ip6_end")),
					sqlchemy.GE(ipEnd, ipConst),
					sqlchemy.LE(ipStart, ipConst),
				)
				if !exactIpMatch {
					ipCondtion = sqlchemy.OR(
						ipCondtion,
						sqlchemy.Contains(q.Field("guest_ip6_start"), ip6Addr.String()),
						sqlchemy.Contains(q.Field("guest_ip6_end"), ip6Addr.String()),
					)
				}
			} else {
				ipCondtion = sqlchemy.OR(
					sqlchemy.Contains(q.Field("guest_ip_start"), ipstr),
					sqlchemy.Contains(q.Field("guest_ip_end"), ipstr),
					sqlchemy.Contains(q.Field("guest_ip6_start"), ipstr),
					sqlchemy.Contains(q.Field("guest_ip6_end"), ipstr),
				)
			}

			conditions = append(conditions, ipCondtion)
		}
		q = q.Filter(sqlchemy.OR(conditions...))
	}

	if len(input.SchedtagId) > 0 {
		schedTag, err := SchedtagManager.FetchByIdOrName(ctx, nil, input.SchedtagId)
		if err != nil {
			if errors.Cause(err) == sql.ErrNoRows {
				return nil, httperrors.NewResourceNotFoundError2(SchedtagManager.Keyword(), input.SchedtagId)
			}
			return nil, httperrors.NewGeneralError(err)
		}
		sq := NetworkschedtagManager.Query("network_id").Equals("schedtag_id", schedTag.GetId()).SubQuery()
		q = q.In("id", sq)
	}

	if len(input.IfnameHint) > 0 {
		q = q.In("ifname_hint", input.IfnameHint)
	}
	if len(input.GuestIpStart) > 0 {
		q = q.Filter(sqlchemy.ContainsAny(q.Field("guest_ip_start"), input.GuestIpStart))
	}
	if len(input.GuestIpEnd) > 0 {
		q = q.Filter(sqlchemy.ContainsAny(q.Field("guest_ip_end"), input.GuestIpEnd))
	}
	if len(input.GuestIpMask) > 0 {
		q = q.In("guest_ip_mask", input.GuestIpMask)
	}
	if len(input.GuestGateway) > 0 {
		q = q.In("guest_gateway", input.GuestGateway)
	}
	if len(input.GuestDns) > 0 {
		q = q.In("guest_dns", input.GuestDns)
	}
	if len(input.GuestDhcp) > 0 {
		q = q.In("guest_dhcp", input.GuestDhcp)
	}
	if len(input.GuestNtp) > 0 {
		q = q.In("guest_ntp", input.GuestNtp)
	}
	if len(input.GuestDomain) > 0 {
		q = q.In("guest_domain", input.GuestDomain)
	}
	if len(input.GuestIp6Start) > 0 {
		q = q.In("guest_ip6_start", input.GuestIp6Start)
	}
	if len(input.GuestIp6End) > 0 {
		q = q.In("guest_ip6_end", input.GuestIp6End)
	}
	if len(input.GuestIp6Mask) > 0 {
		q = q.In("guest_ip6_mask", input.GuestIp6Mask)
	}
	if len(input.GuestGateway6) > 0 {
		q = q.In("guest_gateway6", input.GuestGateway6)
	}
	if len(input.GuestDns6) > 0 {
		q = q.In("guest_dns6", input.GuestDns6)
	}
	if len(input.GuestDomain6) > 0 {
		q = q.In("guest_domain6", input.GuestDomain6)
	}
	if len(input.VlanId) > 0 {
		q = q.In("vlan_id", input.VlanId)
	}
	if len(input.ServerType) > 0 {
		q = q.In("server_type", input.ServerType)
	}
	if len(input.AllocPolicy) > 0 {
		q = q.In("alloc_policy", input.AllocPolicy)
	}
	if len(input.BgpType) > 0 {
		q = q.In("bgp_type", input.BgpType)
	}

	if input.IsAutoAlloc != nil {
		if *input.IsAutoAlloc {
			q = q.IsTrue("is_auto_alloc")
		} else {
			q = q.IsFalse("is_auto_alloc")
		}
	}

	if input.IsClassic != nil {
		subq := manager.Query("id")
		wires := WireManager.Query("id", "vpc_id").SubQuery()
		subq = subq.Join(wires, sqlchemy.Equals(wires.Field("id"), subq.Field("wire_id")))
		if *input.IsClassic {
			subq = subq.Filter(sqlchemy.Equals(wires.Field("vpc_id"), api.DEFAULT_VPC_ID))
		} else {
			subq = subq.Filter(sqlchemy.NotEquals(wires.Field("vpc_id"), api.DEFAULT_VPC_ID))
		}
		q = q.In("id", subq.SubQuery())
	}

	if len(input.HostSchedtagId) > 0 {
		schedTagObj, err := SchedtagManager.FetchByIdOrName(ctx, userCred, input.HostSchedtagId)
		if err != nil {
			if errors.Cause(err) == sql.ErrNoRows {
				return nil, errors.Wrapf(httperrors.ErrResourceNotFound, "%s %s", SchedtagManager.Keyword(), input.HostSchedtagId)
			} else {
				return nil, errors.Wrap(err, "SchedtagManager.FetchByIdOrName")
			}
		}
		subq := NetInterfaceManager.Query("wire_id")
		hostschedtags := HostschedtagManager.Query().Equals("schedtag_id", schedTagObj.GetId()).SubQuery()
		subq = subq.Join(hostschedtags, sqlchemy.Equals(hostschedtags.Field("host_id"), subq.Field("baremetal_id")))
		q = q.In("wire_id", subq.SubQuery())
	}

	return q, nil
}

func (manager *SNetworkManager) OrderByExtraFields(
	ctx context.Context,
	q *sqlchemy.SQuery,
	userCred mcclient.TokenCredential,
	input api.NetworkListInput,
) (*sqlchemy.SQuery, error) {
	var err error

	q, err = manager.SSharableVirtualResourceBaseManager.OrderByExtraFields(ctx, q, userCred, input.SharableVirtualResourceListInput)
	if err != nil {
		return nil, errors.Wrap(err, "SSharableVirtualResourceBaseManager.OrderByExtraFields")
	}
	q, err = manager.SWireResourceBaseManager.OrderByExtraFields(ctx, q, userCred, input.WireFilterListInput)
	if err != nil {
		return nil, errors.Wrap(err, "SWireResourceBaseManager.OrderByExtraFields")
	}

	if db.NeedOrderQuery([]string{input.OrderByIpStart}) {
		q = db.OrderByFields(q, []string{input.OrderByIpStart}, []sqlchemy.IQueryField{sqlchemy.INET_ATON(q.Field("guest_ip_start"))})
	}
	if db.NeedOrderQuery([]string{input.OrderByIpEnd}) {
		q = db.OrderByFields(q, []string{input.OrderByIpEnd}, []sqlchemy.IQueryField{sqlchemy.INET_ATON(q.Field("guest_ip_end"))})
	}
	return q, nil
}

func (manager *SNetworkManager) QueryDistinctExtraField(q *sqlchemy.SQuery, field string) (*sqlchemy.SQuery, error) {
	var err error
	q, err = manager.SSharableVirtualResourceBaseManager.QueryDistinctExtraField(q, field)
	if err == nil {
		return q, nil
	}
	q, err = manager.SWireResourceBaseManager.QueryDistinctExtraField(q, field)
	if err == nil {
		return q, nil
	}
	return q, httperrors.ErrNotFound
}

func (manager *SNetworkManager) InitializeData() error {
	// set network status
	networks := make([]SNetwork, 0)
	q := manager.Query()
	err := db.FetchModelObjects(manager, q, &networks)
	if err != nil {
		return err
	}
	for _, n := range networks {
		if n.ExternalId != "" {
			var statusNew string
			if n.WireId != "" && n.Status == api.NETWORK_STATUS_INIT {
				statusNew = api.NETWORK_STATUS_AVAILABLE
			}
			db.Update(&n, func() error {
				if statusNew != "" {
					n.Status = statusNew
				}
				return nil
			})
		} else {
			var ifnameHintNew string
			if n.IfnameHint == "" {
				ifnameHintNew = n.Name
			}
			db.Update(&n, func() error {
				if ifnameHintNew != "" {
					n.IfnameHint = ifnameHintNew
				}
				return nil
			})
		}
		if n.IsAutoAlloc.IsNone() {
			db.Update(&n, func() error {
				if n.IsPublic && n.ServerType == api.NETWORK_TYPE_GUEST {
					n.IsAutoAlloc = tristate.True
				} else {
					n.IsAutoAlloc = tristate.False
				}
				return nil
			})
		}
	}
	return nil
}

func (snet *SNetwork) ValidateUpdateCondition(ctx context.Context) error {
	/*if len(snet.ExternalId) > 0 {
		return httperrors.NewConflictError("Cannot update external resource")
	}*/
	return snet.SSharableVirtualResourceBase.ValidateUpdateCondition(ctx)
}

func (net *SNetwork) PostUpdate(ctx context.Context, userCred mcclient.TokenCredential, query, data jsonutils.JSONObject) {
	net.SSharableVirtualResourceBase.PostUpdate(ctx, userCred, query, data)

	// reserve guest gateway IP
	{
		input := api.NetworkUpdateInput{}
		err := data.Unmarshal(&input)
		if err != nil {
			log.Errorf("Unmarshal NetworkUpdateInput fail %s", err)
		} else if input.GuestGateway != nil && len(*input.GuestGateway) > 0 {
			err := net.reserveGuestGateway(ctx, userCred)
			if err != nil {
				log.Errorf("reserveGuestGateway fail %s", err)
			}
		}
	}

	net.ClearSchedDescCache()
	if net.IsClassic() {
		err := net.syncAdditionalWires(ctx, nil)
		if err != nil {
			log.Errorf("syncAdditionalWires error %s", err)
		}
	}
}

// 清除IP子网数据
// 要求IP子网内没有被分配IP,若清除接入云,要求接入云账号处于禁用状态
func (snet *SNetwork) PerformPurge(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input *api.NetworkPurgeInput) (jsonutils.JSONObject, error) {
	err := snet.ValidateDeleteCondition(ctx, nil)
	if err != nil {
		return nil, err
	}
	wire, _ := snet.GetWire()
	if wire != nil && len(wire.ExternalId) > 0 {
		provider := wire.GetCloudprovider()
		if provider != nil && provider.GetEnabled() {
			return nil, httperrors.NewInvalidStatusError("Cannot purge network on enabled cloud provider")
		}
	}
	err = snet.RealDelete(ctx, userCred)
	return nil, err
}

func (manager *SNetworkManager) handleNetworkIdChange(ctx context.Context, args *networkIdChangeArgs) error {
	var handlers = []networkIdChangeHandler{
		GuestnetworkManager,
		HostnetworkManager,
		ReservedipManager,
		GroupnetworkManager,
		LoadbalancernetworkManager,
		LoadbalancerManager,
	}

	errs := []error{}
	for _, h := range handlers {
		if err := h.handleNetworkIdChange(ctx, args); err != nil {
			errs = append(errs, err)
		}
	}
	if len(errs) > 0 {
		err := errors.NewAggregate(errs)
		return httperrors.NewGeneralError(err)
	}
	return nil
}

// 合并IP子网
// 将两个相连的IP子网合并成一个IP子网
func (snet *SNetwork) PerformMerge(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input *api.NetworkMergeInput) (jsonutils.JSONObject, error) {
	if len(input.Target) == 0 {
		return nil, httperrors.NewMissingParameterError("target")
	}
	iNet, err := NetworkManager.FetchByIdOrName(ctx, userCred, input.Target)
	if err == sql.ErrNoRows {
		err = httperrors.NewNotFoundError("Network %s not found", input.Target)
		logclient.AddActionLogWithContext(ctx, snet, logclient.ACT_MERGE, err.Error(), userCred, false)
		return nil, err
	} else if err != nil {
		logclient.AddActionLogWithContext(ctx, snet, logclient.ACT_MERGE, err.Error(), userCred, false)
		return nil, err
	}

	net := iNet.(*SNetwork)
	if net == nil {
		err = fmt.Errorf("Network is nil")
		logclient.AddActionLogWithContext(ctx, snet, logclient.ACT_MERGE, err.Error(), userCred, false)
		return nil, err
	}

	startIp, endIp, err := snet.CheckInvalidToMerge(ctx, net, nil)
	if err != nil {
		logclient.AddActionLogWithContext(ctx, snet, logclient.ACT_MERGE, err.Error(), userCred, false)
		return nil, err
	}

	return nil, snet.MergeToNetworkAfterCheck(ctx, userCred, net, startIp, endIp)
}

func (snet *SNetwork) MergeToNetworkAfterCheck(ctx context.Context, userCred mcclient.TokenCredential, net *SNetwork, startIp string, endIp string) error {
	lockman.LockClass(ctx, NetworkManager, db.GetLockClassKey(NetworkManager, userCred))
	defer lockman.ReleaseClass(ctx, NetworkManager, db.GetLockClassKey(NetworkManager, userCred))

	_, err := db.Update(net, func() error {
		net.GuestIpStart = startIp
		net.GuestIpEnd = endIp
		return nil
	})
	if err != nil {
		logclient.AddActionLogWithContext(ctx, snet, logclient.ACT_MERGE, err.Error(), userCred, false)
		return err
	}

	if err := NetworkManager.handleNetworkIdChange(ctx, &networkIdChangeArgs{
		action:   logclient.ACT_MERGE,
		oldNet:   snet,
		newNet:   net,
		userCred: userCred,
	}); err != nil {
		return err
	}

	note := map[string]string{"start_ip": startIp, "end_ip": endIp}
	db.OpsLog.LogEvent(snet, db.ACT_MERGE, note, userCred)
	logclient.AddActionLogWithContext(ctx, snet, logclient.ACT_MERGE, note, userCred, true)

	if err = snet.RealDelete(ctx, userCred); err != nil {
		return err
	}
	note = map[string]string{"network": snet.Id}
	db.OpsLog.LogEvent(snet, db.ACT_DELETE, note, userCred)
	logclient.AddActionLogWithContext(ctx, snet, logclient.ACT_DELOCATE, note, userCred, true)
	return nil
}

func (snet *SNetwork) CheckInvalidToMerge(ctx context.Context, net *SNetwork, allNets []*SNetwork) (string, string, error) {
	failReason := make([]string, 0)

	if snet.WireId != net.WireId {
		failReason = append(failReason, "wire_id")
	}
	if snet.GuestGateway != net.GuestGateway {
		failReason = append(failReason, "guest_gateway")
	}
	if snet.VlanId != net.VlanId {
		failReason = append(failReason, "vlan_id")
	}
	// Qiujian: allow merge networks of different server_type
	/*if snet.ServerType != net.ServerType {
		failReason = append(failReason, "server_type")
	}*/

	if len(failReason) > 0 {
		err := httperrors.NewInputParameterError("Invalid Target Network %s: inconsist %s", net.GetId(), strings.Join(failReason, ","))
		return "", "", err
	}

	var startIp, endIp string
	ipNE, _ := netutils.NewIPV4Addr(net.GuestIpEnd)
	ipNS, _ := netutils.NewIPV4Addr(net.GuestIpStart)
	ipSS, _ := netutils.NewIPV4Addr(snet.GuestIpStart)
	ipSE, _ := netutils.NewIPV4Addr(snet.GuestIpEnd)

	var wireNets []SNetwork
	if allNets == nil {
		wireSubq := WireManager.Query("vpc_id").Equals("id", snet.WireId).SubQuery()
		wiresQ := WireManager.Query("id")
		wiresSubQ := wiresQ.Join(wireSubq, sqlchemy.Equals(wiresQ.Field("vpc_id"), wireSubq.Field("vpc_id"))).SubQuery()
		q := NetworkManager.Query().In("wire_id", wiresSubQ).NotEquals("id", snet.Id).NotEquals("id", net.Id)
		err := db.FetchModelObjects(NetworkManager, q, &wireNets)
		if err != nil && errors.Cause(err) != sql.ErrNoRows {
			return "", "", errors.Wrap(err, "Query nets of same wire")
		}
	} else {
		wireNets = make([]SNetwork, len(allNets))
		for i := range wireNets {
			wireNets[i] = *allNets[i]
		}
	}

	if ipNE.StepUp() == ipSS || (ipNE.StepUp() < ipSS && !isOverlapNetworksAddr(wireNets, ipNE.StepUp(), ipSS.StepDown())) {
		startIp, endIp = net.GuestIpStart, snet.GuestIpEnd
	} else if ipSE.StepUp() == ipNS || (ipSE.StepUp() < ipNS && !isOverlapNetworksAddr(wireNets, ipSE.StepUp(), ipNS.StepDown())) {
		startIp, endIp = snet.GuestIpStart, net.GuestIpEnd
	} else {
		note := "Incontinuity Network for %s and %s"
		return "", "", httperrors.NewBadRequestError(note, snet.Name, net.Name)
	}
	return startIp, endIp, nil
}

// 分割IP子网
// 将一个IP子网分割成两个子网,仅本地IDC支持此操作
func (snet *SNetwork) PerformSplit(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input *api.NetworkSplitInput) (jsonutils.JSONObject, error) {
	if len(snet.ExternalId) > 0 {
		return nil, httperrors.NewNotSupportedError("only on premise support this operation")
	}

	if !snet.IsClassic() {
		return nil, httperrors.NewNotSupportedError("only on premise classic network support this operation")
	}

	if snet.IsSupportIPv6() {
		return nil, httperrors.NewNotSupportedError("only on premise pure-ipv4 classic network support this operation")
	}

	if len(input.SplitIp) == 0 {
		return nil, httperrors.NewMissingParameterError("split_ip")
	}

	if !regutils.MatchIPAddr(input.SplitIp) {
		return nil, httperrors.NewInputParameterError("Invalid IP %s", input.SplitIp)
	}
	if input.SplitIp == snet.GuestIpStart {
		return nil, httperrors.NewInputParameterError("Split IP %s is the start ip", input.SplitIp)
	}

	iSplitIp, err := netutils.NewIPV4Addr(input.SplitIp)
	if err != nil {
		return nil, err
	}
	if !snet.IsAddressInRange(iSplitIp) {
		return nil, httperrors.NewInputParameterError("Split IP %s out of range", input.SplitIp)
	}

	network := &SNetwork{}
	network.GuestIpStart = input.SplitIp
	network.GuestIpEnd = snet.GuestIpEnd
	network.GuestIpMask = snet.GuestIpMask
	network.GuestGateway = snet.GuestGateway
	network.GuestDns = snet.GuestDns
	network.GuestDhcp = snet.GuestDhcp
	network.GuestNtp = snet.GuestNtp
	network.GuestDomain = snet.GuestDomain
	network.VlanId = snet.VlanId
	network.WireId = snet.WireId
	network.ServerType = snet.ServerType
	network.IsPublic = snet.IsPublic
	network.Status = snet.Status
	network.ProjectId = snet.ProjectId
	network.DomainId = snet.DomainId
	// network.UserId = snet.UserId
	network.IsSystem = snet.IsSystem
	network.Description = snet.Description
	network.IsAutoAlloc = snet.IsAutoAlloc

	err = func() error {
		lockman.LockRawObject(ctx, NetworkManager.Keyword(), "name")
		defer lockman.ReleaseRawObject(ctx, NetworkManager.Keyword(), "name")

		if len(input.Name) > 0 {
			if err := db.NewNameValidator(ctx, NetworkManager, userCred, input.Name, nil); err != nil {
				return httperrors.NewInputParameterError("Duplicate name %s", input.Name)
			}
		} else {
			input.Name, err = db.GenerateName(ctx, NetworkManager, userCred, fmt.Sprintf("%s#", snet.Name))
			if err != nil {
				return httperrors.NewInternalServerError("GenerateName fail %s", err)
			}
		}

		network.Name = input.Name
		network.IfnameHint, err = NetworkManager.newIfnameHint(input.Name)
		if err != nil {
			return httperrors.NewBadRequestError("Generate ifname hint failed %s", err)
		}

		return NetworkManager.TableSpec().Insert(ctx, network)
	}()
	if err != nil {
		return nil, err
	}
	network.SetModelManager(NetworkManager, network)

	db.Update(snet, func() error {
		snet.GuestIpEnd = iSplitIp.StepDown().String()
		return nil
	})

	if err := NetworkManager.handleNetworkIdChange(ctx, &networkIdChangeArgs{
		action:   logclient.ACT_SPLIT,
		oldNet:   snet,
		newNet:   network,
		userCred: userCred,
	}); err != nil {
		return nil, err
	}

	note := map[string]string{"split_ip": input.SplitIp, "end_ip": network.GuestIpEnd}
	db.OpsLog.LogEvent(snet, db.ACT_SPLIT, note, userCred)
	logclient.AddActionLogWithContext(ctx, snet, logclient.ACT_SPLIT, note, userCred, true)
	db.OpsLog.LogEvent(network, db.ACT_CREATE, map[string]string{"network": snet.Id}, userCred)
	return nil, nil
}

func (manager *SNetworkManager) PerformTryCreateNetwork(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input *api.NetworkTryCreateNetworkInput) (jsonutils.JSONObject, error) {
	if len(input.Ip) == 0 {
		return nil, httperrors.NewMissingParameterError("ip")
	}

	var ipV4, ipV4NetAddr netutils.IPV4Addr
	var ipV6, ipV6NetAddr netutils.IPV6Addr
	var err error

	if input.Mask == 0 {
		return nil, httperrors.NewMissingParameterError("mask")
	}

	if regutils.MatchIP4Addr(input.Ip) {
		ipV4, err = netutils.NewIPV4Addr(input.Ip)
		if err != nil {
			return nil, errors.Wrapf(err, "invalid ipv4 address %s", input.Ip)
		}
		if ipV4.IsZero() {
			return nil, errors.Wrapf(errors.ErrInvalidFormat, "invalid ipv4 address %s", input.Ip)
		}
		ipV4NetAddr = ipV4.NetAddr(int8(input.Mask))
	} else if regutils.MatchIP6Addr(input.Ip) {
		ipV6, err = netutils.NewIPV6Addr(input.Ip)
		if err != nil {
			return nil, errors.Wrapf(err, "invalid ipv6 address %s", input.Ip)
		}
		if ipV6.IsZero() {
			return nil, errors.Wrapf(errors.ErrInvalidFormat, "invalid ipv6 address %s", input.Ip)
		}
		ipV6NetAddr = ipV6.NetAddr(uint8(input.Mask))
	} else {
		return nil, errors.Wrapf(errors.ErrInvalidFormat, "invalid ip address %s", input.Ip)
	}

	if len(input.ServerType) == 0 {
		return nil, httperrors.NewMissingParameterError("server_type")
	}
	if input.ServerType != api.NETWORK_TYPE_BAREMETAL {
		return nil, httperrors.NewBadRequestError("Only support server type %s", api.NETWORK_TYPE_BAREMETAL)
	}
	if !input.IsOnPremise {
		return nil, httperrors.NewBadRequestError("Only support on premise network")
	}

	var (
		nm      *SNetwork
		matched bool
	)

	q := NetworkManager.Query().Equals("server_type", input.ServerType)
	if !ipV4.IsZero() {
		q = q.Equals("guest_ip_mask", input.Mask)
	} else if !ipV6.IsZero() {
		q = q.Equals("guest_ip6_mask", input.Mask)
	}

	listQuery := api.NetworkListInput{}
	err = query.Unmarshal(&listQuery)
	if err != nil {
		return nil, errors.Wrap(err, "query.Unmarshal")
	}
	q, err = managedResourceFilterByAccount(ctx, q, listQuery.ManagedResourceListInput, "wire_id", func() *sqlchemy.SQuery {
		wires := WireManager.Query().SubQuery()
		vpcs := VpcManager.Query().SubQuery()
		subq := wires.Query(wires.Field("id"))
		subq = subq.Join(vpcs, sqlchemy.Equals(vpcs.Field("id"), wires.Field("vpc_id")))
		return subq
	})
	if err != nil {
		return nil, errors.Wrap(err, "managedResourceFilterByAccount")
	}

	rows, err := q.Rows()
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	for rows.Next() {
		item, err := db.NewModelObject(NetworkManager)
		if err != nil {
			return nil, err
		}
		err = q.Row2Struct(rows, item)
		if err != nil {
			return nil, err
		}
		n := item.(*SNetwork)

		if !ipV4.IsZero() {
			if n.getIPRange().Contains(ipV4) {
				nm = n
				matched = true
				break
			} else if nIpV4, _ := netutils.NewIPV4Addr(n.GuestIpStart); nIpV4.NetAddr(n.GuestIpMask) == ipV4NetAddr {
				nm = n
				matched = false
				break
			}
		} else if !ipV6.IsZero() {
			if n.getIPRange6().Contains(ipV6) {
				nm = n
				matched = true
				break
			} else if nIpV6, _ := netutils.NewIPV6Addr(n.GuestIp6Start); nIpV6.NetAddr(n.GuestIp6Mask) == ipV6NetAddr {
				nm = n
				matched = false
				break
			}
		}
	}

	ret := jsonutils.NewDict()
	if nm == nil {
		ret.Set("find_matched", jsonutils.JSONFalse)
		return ret, nil
	}
	ret.Set("find_matched", jsonutils.JSONTrue)
	ret.Set("wire_id", jsonutils.NewString(nm.WireId))
	if !matched {
		log.Infof("Find same subnet network %s %s/%d %s/%d", nm.Name, nm.GuestGateway, nm.GuestIpMask, nm.GuestGateway6, nm.GuestIp6Mask)
		newNetwork := new(SNetwork)
		newNetwork.SetModelManager(NetworkManager, newNetwork)
		if !ipV4.IsZero() {
			newNetwork.GuestIpStart = ipV4.String()
			newNetwork.GuestIpEnd = ipV4.String()
			newNetwork.GuestGateway = nm.GuestGateway
			newNetwork.GuestIpMask = int8(input.Mask)
		} else if !ipV6.IsZero() {
			newNetwork.GuestIp6Start = ipV6.String()
			newNetwork.GuestIp6End = ipV6.String()
			newNetwork.GuestGateway6 = nm.GuestGateway6
			newNetwork.GuestIp6Mask = uint8(input.Mask)
		}
		newNetwork.GuestDns = nm.GuestDns
		newNetwork.GuestDhcp = nm.GuestDhcp
		newNetwork.GuestNtp = nm.GuestNtp
		newNetwork.WireId = nm.WireId
		newNetwork.ServerType = input.ServerType
		newNetwork.IsPublic = nm.IsPublic
		newNetwork.ProjectId = userCred.GetProjectId()
		newNetwork.DomainId = userCred.GetProjectDomainId()

		err = func() error {
			lockman.LockRawObject(ctx, NetworkManager.Keyword(), "name")
			defer lockman.ReleaseRawObject(ctx, NetworkManager.Keyword(), "name")

			newNetwork.Name, err = db.GenerateName(ctx, NetworkManager, userCred, fmt.Sprintf("%s#", nm.Name))
			if err != nil {
				return httperrors.NewInternalServerError("GenerateName fail %s", err)
			}

			return NetworkManager.TableSpec().Insert(ctx, newNetwork)
		}()
		if err != nil {
			return nil, err
		}
		err = newNetwork.CustomizeCreate(ctx, userCred, userCred, query, input.JSON(input))
		if err != nil {
			return nil, err
		}
		newNetwork.PostCreate(ctx, userCred, userCred, query, input.JSON(input))
		// inherit wire's class metadata
		wire, err := newNetwork.GetWire()
		if err != nil {
			return nil, errors.Wrap(err, "unable to get wire")
		}
		err = db.InheritFromTo(ctx, userCred, wire, newNetwork)
		if err != nil {
			return nil, errors.Wrap(err, "unable to inherit wire")
		}
	}
	return ret, nil
}

func (network *SNetwork) getAllocTimoutDuration() time.Duration {
	tos := network.AllocTimoutSeconds
	if tos < options.Options.MinimalIpAddrReusedIntervalSeconds {
		tos = options.Options.MinimalIpAddrReusedIntervalSeconds
	}
	return time.Duration(tos) * time.Second
}

func (network *SNetwork) GetSchedtags() []SSchedtag {
	return GetSchedtags(NetworkschedtagManager, network.Id)
}

func (network *SNetwork) GetDynamicConditionInput() *jsonutils.JSONDict {
	return jsonutils.Marshal(network).(*jsonutils.JSONDict)
}

func (network *SNetwork) PerformSetSchedtag(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, data jsonutils.JSONObject) (jsonutils.JSONObject, error) {
	return PerformSetResourceSchedtag(network, ctx, userCred, query, data)
}

func (network *SNetwork) GetSchedtagJointManager() ISchedtagJointManager {
	return NetworkschedtagManager
}

func (network *SNetwork) ClearSchedDescCache() error {
	wire, _ := network.GetWire()
	if wire == nil {
		return nil
	}
	return wire.clearHostSchedDescCache()
}

func (network *SNetwork) PerformChangeOwner(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input apis.PerformChangeProjectOwnerInput) (jsonutils.JSONObject, error) {
	wire, err := network.GetWire()
	if err != nil {
		return nil, errors.Wrap(err, "unable to get wire")
	}
	project, err := db.TenantCacheManager.FetchTenantById(ctx, input.ProjectId)
	if err != nil {
		return nil, errors.Wrapf(err, "unable to get project %s", input.ProjectId)
	}
	ok, err := db.IsInSameClass(ctx, wire, project)
	if err != nil {
		return nil, errors.Wrap(err, "unable to check if the wire and project is in same class")
	}
	if !ok {
		return nil, httperrors.NewForbiddenError("the wire %s and the project %s has different class metadata", wire.GetName(), project.GetName())
	}
	ret, err := network.SSharableVirtualResourceBase.PerformChangeOwner(ctx, userCred, query, input)
	if err != nil {
		return nil, err
	}
	network.ClearSchedDescCache()
	return ret, nil
}

func (network *SNetwork) getUsedAddressQuery(ctx context.Context, userCred mcclient.TokenCredential, owner mcclient.IIdentityProvider, scope rbacscope.TRbacScope, addrOnly bool) *sqlchemy.SQuery {
	usedAddressQueryProviders := getUsedAddressQueryProviders()
	var (
		args = &usedAddressQueryArgs{
			network:  network,
			userCred: userCred,
			owner:    owner,
			scope:    scope,
			addrOnly: addrOnly,
			addrType: api.AddressTypeIPv4,
		}
		queries = make([]sqlchemy.IQuery, 0, len(usedAddressQueryProviders))
	)

	for _, provider := range usedAddressQueryProviders {
		q := provider.usedAddressQuery(ctx, args)
		queries = append(queries, q)
	}
	return sqlchemy.Union(queries...).Query()
}

func (network *SNetwork) getUsedAddressQuery6(ctx context.Context, userCred mcclient.TokenCredential, owner mcclient.IIdentityProvider, scope rbacscope.TRbacScope, addrOnly bool) *sqlchemy.SQuery {
	usedAddress6QueryProviders := getUsedAddress6QueryProviders()
	var (
		args = &usedAddressQueryArgs{
			network:  network,
			userCred: userCred,
			owner:    owner,
			scope:    scope,
			addrOnly: addrOnly,
			addrType: api.AddressTypeIPv6,
		}
		queries = make([]sqlchemy.IQuery, 0, len(usedAddress6QueryProviders))
	)

	for _, provider := range usedAddress6QueryProviders {
		q := provider.usedAddressQuery(ctx, args)
		queries = append(queries, q)
	}
	return sqlchemy.Union(queries...).Query()
}

func (snet *SNetwork) Contains(ip string) bool {
	start, _ := netutils.NewIPV4Addr(snet.GuestIpStart)
	end, _ := netutils.NewIPV4Addr(snet.GuestIpEnd)
	addr, _ := netutils.NewIPV4Addr(ip)
	return netutils.NewIPV4AddrRange(start, end).Contains(addr)
}

type SNetworkUsedAddressList []api.SNetworkUsedAddress

func (a SNetworkUsedAddressList) Len() int      { return len(a) }
func (a SNetworkUsedAddressList) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a SNetworkUsedAddressList) Less(i, j int) bool {
	ipI, _ := netutils.NewIPV4Addr(a[i].IpAddr)
	ipJ, _ := netutils.NewIPV4Addr(a[j].IpAddr)
	return ipI < ipJ
}

type SNetworkUsedAddress6List []api.SNetworkUsedAddress

func (a SNetworkUsedAddress6List) Len() int      { return len(a) }
func (a SNetworkUsedAddress6List) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a SNetworkUsedAddress6List) Less(i, j int) bool {
	ipI, _ := netutils.NewIPV6Addr(a[i].Ip6Addr)
	ipJ, _ := netutils.NewIPV6Addr(a[j].Ip6Addr)
	return ipI.Lt(ipJ)
}

func (network *SNetwork) GetDetailsAddresses(
	ctx context.Context,
	userCred mcclient.TokenCredential,
	input api.GetNetworkAddressesInput,
) (api.GetNetworkAddressesOutput, error) {
	output := api.GetNetworkAddressesOutput{}

	allowScope, _ := policy.PolicyManager.AllowScope(userCred, api.SERVICE_TYPE, network.KeywordPlural(), policy.PolicyActionGet, "addresses")
	scope := rbacscope.String2ScopeDefault(input.Scope, allowScope)
	if scope.HigherThan(allowScope) {
		return output, errors.Wrapf(httperrors.ErrNotSufficientPrivilege, "require %s allow %s", scope, allowScope)
	}

	output, err := network.fetchAddressDetails(ctx, userCred, userCred, scope)
	if err != nil {
		return output, errors.Wrap(err, "fetchAddressDetails")
	}

	return output, nil
}

func (network *SNetwork) GetUsedAddressDetails(ctx context.Context, addr string) (*api.SNetworkUsedAddress, error) {
	address, err := network.GetAddressDetails(ctx, nil, nil, rbacscope.ScopeSystem)
	if err != nil {
		return nil, errors.Wrapf(err, "GetAddressDetails")
	}
	for i := range address {
		if address[i].IpAddr == addr || address[i].Ip6Addr == addr {
			return &address[i], nil
		}
	}
	return nil, errors.Wrapf(errors.ErrNotFound, "%s", addr)
}

func (network *SNetwork) GetAddressDetails(ctx context.Context, userCred mcclient.TokenCredential, owner mcclient.IIdentityProvider, scope rbacscope.TRbacScope) ([]api.SNetworkUsedAddress, error) {
	netAddrs := make([]api.SNetworkUsedAddress, 0)
	q := network.getUsedAddressQuery(ctx, userCred, owner, scope, false)
	err := q.All(&netAddrs)
	if err != nil {
		return nil, httperrors.NewGeneralError(err)
	}
	sort.Sort(SNetworkUsedAddressList(netAddrs))
	return netAddrs, nil
}

func (network *SNetwork) fetchAddressDetails(ctx context.Context, userCred mcclient.TokenCredential, owner mcclient.IIdentityProvider, scope rbacscope.TRbacScope) (api.GetNetworkAddressesOutput, error) {
	output := api.GetNetworkAddressesOutput{}
	{
		var err error
		output.Addresses, err = network.GetAddressDetails(ctx, userCred, owner, scope)
		if err != nil {
			return output, err
		}
	}
	{
		netAddrs6 := make([]api.SNetworkUsedAddress, 0)
		q := network.getUsedAddressQuery6(ctx, userCred, owner, scope, false)
		err := q.All(&netAddrs6)
		if err != nil {
			return output, httperrors.NewGeneralError(err)
		}

		sort.Sort(SNetworkUsedAddress6List(netAddrs6))

		output.Addresses6 = netAddrs6
	}
	return output, nil
}

func (network *SNetwork) GetDetailsAvailableAddresses(
	ctx context.Context,
	userCred mcclient.TokenCredential,
	input api.GetNetworkAvailableAddressesInput,
) (api.GetNetworkAvailableAddressesOutput, error) {
	const maxCount = 1024
	var availables []string
	var availables6 []string
	{
		addrTable := network.GetUsedAddresses(ctx)
		recentUsedAddrTable := GuestnetworkManager.getRecentlyReleasedIPAddresses(network.Id, network.getAllocTimoutDuration())
		addrRange := network.getIPRange()

		for addr := addrRange.StartIp(); addr <= addrRange.EndIp() && len(availables) < maxCount; addr = addr.StepUp() {
			addrStr := addr.String()
			if _, ok := addrTable[addrStr]; !ok {
				if _, ok := recentUsedAddrTable[addrStr]; !ok {
					availables = append(availables, addrStr)
				}
			}
		}
	}
	if network.IsSupportIPv6() {
		addrTable6 := network.GetUsedAddresses6(ctx)
		recentUsedAddrTable6 := GuestnetworkManager.getRecentlyReleasedIPAddresses6(network.Id, network.getAllocTimoutDuration())
		addrRange6 := network.getIPRange6()
		for addr6 := addrRange6.StartIp(); addr6.Le(addrRange6.EndIp()) && len(availables6) < maxCount; addr6 = addr6.StepUp() {
			addrStr6 := addr6.String()
			if _, ok := addrTable6[addrStr6]; !ok {
				if _, ok := recentUsedAddrTable6[addrStr6]; !ok {
					availables6 = append(availables6, addrStr6)
				}
			}
		}
	}
	return api.GetNetworkAvailableAddressesOutput{
		Addresses:  availables,
		Addresses6: availables6,
	}, nil
}

// 同步接入云IP子网状态
// 本地IDC不支持此操作
func (net *SNetwork) PerformSyncstatus(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input *api.NetworkSyncInput) (jsonutils.JSONObject, error) {
	return net.PerformSync(ctx, userCred, query, input)
}

// 同步接入云IP子网状态
// 本地IDC不支持此操作
func (net *SNetwork) PerformSync(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input *api.NetworkSyncInput) (jsonutils.JSONObject, error) {
	vpc, _ := net.GetVpc()
	if vpc != nil && vpc.IsManaged() {
		return nil, net.StartSyncstatusTask(ctx, userCred, "")
	}
	return nil, httperrors.NewUnsupportOperationError("on-premise network cannot sync status")
}

func (net *SNetwork) StartSyncstatusTask(ctx context.Context, userCred mcclient.TokenCredential, parentTaskId string) error {
	return StartResourceSyncStatusTask(ctx, userCred, net, "NetworkSyncstatusTask", parentTaskId)
}

// 更改IP子网状态
func (net *SNetwork) PerformStatus(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input apis.PerformStatusInput) (jsonutils.JSONObject, error) {
	if len(input.Status) == 0 {
		return nil, httperrors.NewMissingParameterError("status")
	}
	vpc, _ := net.GetVpc()
	if vpc != nil && vpc.IsManaged() {
		return nil, httperrors.NewUnsupportOperationError("managed network cannot change status")
	}
	if !utils.IsInStringArray(input.Status, []string{api.NETWORK_STATUS_AVAILABLE, api.NETWORK_STATUS_UNAVAILABLE}) {
		return nil, httperrors.NewInputParameterError("invalid status %s", input.Status)
	}
	return net.SSharableVirtualResourceBase.PerformStatus(ctx, userCred, query, input)
}

func (net *SNetwork) GetChangeOwnerCandidateDomainIds() []string {
	candidates := [][]string{}
	wire, _ := net.GetWire()
	if wire != nil {
		vpc, _ := wire.GetVpc()
		if vpc != nil {
			candidates = append(candidates, vpc.GetChangeOwnerCandidateDomainIds())
		}
		candidates = append(candidates, db.ISharableChangeOwnerCandidateDomainIds(wire))
	}
	return db.ISharableMergeChangeOwnerCandidateDomainIds(net, candidates...)
}

func (manager *SNetworkManager) ListItemExportKeys(ctx context.Context,
	q *sqlchemy.SQuery,
	userCred mcclient.TokenCredential,
	keys stringutils2.SSortedStrings,
) (*sqlchemy.SQuery, error) {
	var err error
	q, err = manager.SSharableVirtualResourceBaseManager.ListItemExportKeys(ctx, q, userCred, keys)
	if err != nil {
		return nil, errors.Wrap(err, "SSharableVirtualResourceBaseManager.ListItemExportKeys")
	}
	if keys.ContainsAny(manager.SWireResourceBaseManager.GetExportKeys()...) {
		q, err = manager.SWireResourceBaseManager.ListItemExportKeys(ctx, q, userCred, keys)
		if err != nil {
			return nil, errors.Wrap(err, "SWireResourceBaseManager.ListItemExportKeys")
		}
	}
	return q, nil
}

func (manager *SNetworkManager) AllowScope(userCred mcclient.TokenCredential) rbacscope.TRbacScope {
	scope, _ := policy.PolicyManager.AllowScope(userCred, api.SERVICE_TYPE, NetworkManager.KeywordPlural(), policy.PolicyActionGet)
	return scope
}

func (snet *SNetwork) PerformSetBgpType(ctx context.Context, userCred mcclient.TokenCredential, query jsonutils.JSONObject, input *api.NetworkSetBgpTypeInput) (jsonutils.JSONObject, error) {
	if snet.BgpType == input.BgpType {
		return nil, nil
	}
	if snet.ServerType != api.NETWORK_TYPE_EIP {
		return nil, httperrors.NewInputParameterError("BgpType attribute is only useful for eip network")
	}
	{
		var eips []SElasticip
		q := ElasticipManager.Query().
			Equals("network_id", snet.Id).
			NotEquals("bgp_type", input.BgpType)
		if err := db.FetchModelObjects(ElasticipManager, q, &eips); err != nil {
			return nil, err
		}
		for i := range eips {
			eip := &eips[i]
			if diff, err := db.UpdateWithLock(ctx, eip, func() error {
				eip.BgpType = input.BgpType
				return nil
			}); err != nil {
				// no need to retry/restore here.  return error
				// and retry after user resolves the error
				return nil, err
			} else {
				db.OpsLog.LogEvent(eip, db.ACT_UPDATE, diff, userCred)
			}
		}
	}
	if diff, err := db.Update(snet, func() error {
		snet.BgpType = input.BgpType
		return nil
	}); err != nil {
		return nil, err
	} else {
		logclient.AddActionLogWithContext(ctx, snet, logclient.ACT_UPDATE, diff, userCred, true)
		db.OpsLog.LogEvent(snet, db.ACT_UPDATE, diff, userCred)
	}
	return nil, nil
}

func (net *SNetwork) IsClassic() bool {
	vpc, _ := net.GetVpc()
	if vpc != nil && vpc.Id == api.DEFAULT_VPC_ID {
		return true
	}
	return false
}

func (net *SNetwork) getAttachedHosts() ([]SHost, error) {
	guestsQ := GuestManager.Query()
	gnsQ := GuestnetworkManager.Query().Equals("network_id", net.Id).SubQuery()
	guestsQ = guestsQ.Join(gnsQ, sqlchemy.Equals(guestsQ.Field("id"), gnsQ.Field("guest_id")))
	guestsQ = guestsQ.IsNotEmpty("host_id")
	guestsQ = guestsQ.AppendField(guestsQ.Field("host_id"))

	guestsSubQ := guestsQ.SubQuery()
	// unionQ := sqlchemy.Union(hns, guestsQ).Query().SubQuery()
	q := HostManager.Query()
	q = q.Join(guestsSubQ, sqlchemy.Equals(q.Field("id"), guestsSubQ.Field("host_id")))
	q = q.Distinct()

	hosts := make([]SHost, 0)
	err := db.FetchModelObjects(HostManager, q, &hosts)
	if err != nil {
		return nil, errors.Wrap(err, "FetchModelObjects")
	}
	return hosts, nil
}

func (net *SNetwork) PerformSwitchWire(
	ctx context.Context,
	userCred mcclient.TokenCredential,
	query jsonutils.JSONObject,
	input *api.NetworkSwitchWireInput,
) (jsonutils.JSONObject, error) {

	if !net.IsClassic() {
		return nil, errors.Wrap(httperrors.ErrNotSupported, "default vpc only")
	}

	wireObj, err := WireManager.FetchByIdOrName(ctx, userCred, input.WireId)
	if err != nil {
		if errors.Cause(err) == sql.ErrNoRows {
			return nil, httperrors.NewResourceNotFoundError2(WireManager.Keyword(), input.WireId)
		} else {
			return nil, errors.Wrapf(err, "WireManager.FetchByIdOrName %s", input.WireId)
		}
	}
	wire := wireObj.(*SWire)
	if net.WireId == wire.Id {
		return nil, nil
	}
	oldWire, _ := net.GetWire()
	if oldWire.VpcId != wire.VpcId {
		return nil, errors.Wrapf(httperrors.ErrConflict, "cannot switch wires of other vpc")
	}

	hosts, err := net.getAttachedHosts()
	if err != nil {
		return nil, errors.Wrap(err, "getAttachedHosts")
	}
	unreachedHost := make([]string, 0)
	for i := range hosts {
		if hosts[i].HostType == api.HOST_TYPE_ESXI {
			continue
		}
		if !hosts[i].IsAttach2Wire(wire.Id) {
			unreachedHost = append(unreachedHost, hosts[i].Name)
		}
	}
	if len(unreachedHost) > 0 {
		return nil, errors.Wrapf(httperrors.ErrConflict, "wire %s not reachable for hosts %s", wire.Name, strings.Join(unreachedHost, ","))
	}

	diff, err := db.Update(net, func() error {
		net.WireId = wire.Id
		return nil
	})
	if err != nil {
		return nil, errors.Wrap(err, "update wire_id")
	}

	{
		err := net.syncAdditionalWires(ctx, nil)
		if err != nil {
			log.Errorf("syncAdditionalWires fail %s", err)
		}
	}

	logclient.AddActionLogWithContext(ctx, net, logclient.ACT_UPDATE, diff, userCred, true)
	db.OpsLog.LogEvent(net, db.ACT_UPDATE, diff, userCred)

	// fix vmware hostnics wire
	hns, err := HostnetworkManager.fetchHostnetworksByNetwork(net.Id)
	if err != nil {
		return nil, errors.Wrap(err, "HostnetworkManager.fetchHostnetworksByNetwork")
	}

	for i := range hns {
		nic, err := hns[i].GetNetInterface()
		if err != nil {
			return nil, errors.Wrap(err, "Hostnetwork.GetNetInterface")
		}
		log.Errorf("PerformSwitchWire: change wireId for nic %s for hostnetwork %s", jsonutils.Marshal(nic), jsonutils.Marshal(hns[i]))
		if len(nic.Bridge) > 0 {
			log.Warningf("PerformSwitchWire: non-empty wireId %s for hostnetwork %s", jsonutils.Marshal(nic), jsonutils.Marshal(hns[i]))
			continue
		}
		if nic.WireId != wire.Id {
			_, err := db.Update(nic, func() error {
				nic.WireId = wire.Id
				return nil
			})
			if err != nil {
				return nil, errors.Wrap(err, "Update NetInterface")
			}
		}
	}

	return nil, nil
}

func (net *SNetwork) fetchAdditionalWires() []api.SSimpleWire {
	wires, err := NetworkAdditionalWireManager.FetchNetworkAdditionalWires(net.Id)
	if err != nil {
		log.Errorf("NetworkAdditionalWireManager.FetchNetworkAdditionalWires error %s", err)
	}
	return wires
}

func (net *SNetwork) PerformSyncAdditionalWires(
	ctx context.Context,
	userCred mcclient.TokenCredential,
	query jsonutils.JSONObject,
	input *api.NetworSyncAdditionalWiresInput,
) (jsonutils.JSONObject, error) {
	if !net.IsClassic() {
		return nil, errors.Wrap(httperrors.ErrNotSupported, "default vpc only")
	}

	wireIds := make([]string, 0)
	errs := make([]error, 0)
	for _, wireId := range input.WireIds {
		wireObj, err := WireManager.FetchByIdOrName(ctx, userCred, wireId)
		if err != nil {
			if errors.Cause(err) == sql.ErrNoRows {
				errs = append(errs, httperrors.NewResourceNotFoundError2(WireManager.Keyword(), wireId))
			} else {
				errs = append(errs, errors.Wrapf(err, "WireManager.FetchByIdOrNam %s", wireId))
			}
		}
		wireIds = append(wireIds, wireObj.GetId())
	}
	if len(errs) > 0 {
		return nil, errors.NewAggregate(errs)
	}

	err := net.syncAdditionalWires(ctx, wireIds)
	if err != nil {
		return nil, errors.Wrap(err, "syncAdditionalWires")
	}
	return nil, nil
}

func (net *SNetwork) IsSupportIPv4() bool {
	return len(net.GuestIpStart) > 0 && len(net.GuestIpEnd) > 0
}

func (net *SNetwork) IsSupportIPv6() bool {
	return len(net.GuestIp6Start) > 0 && len(net.GuestIp6End) > 0
}

func (net *SNetwork) OnMetadataUpdated(ctx context.Context, userCred mcclient.TokenCredential) {
	if len(net.ExternalId) == 0 || options.Options.KeepTagLocalization {
		return
	}
	vpc, err := net.GetVpc()
	if err != nil {
		return
	}
	if account := vpc.GetCloudaccount(); account != nil && account.ReadOnly {
		return
	}
	err = net.StartRemoteUpdateTask(ctx, userCred, true, "")
	if err != nil {
		log.Errorf("StartRemoteUpdateTask fail: %s", err)
	}
}

func (net *SNetwork) StartRemoteUpdateTask(ctx context.Context, userCred mcclient.TokenCredential, replaceTags bool, parentTaskId string) error {
	data := jsonutils.NewDict()
	if replaceTags {
		data.Add(jsonutils.JSONTrue, "replace_tags")
	}
	task, err := taskman.TaskManager.NewTask(ctx, "NetworkRemoteUpdateTask", net, userCred, data, parentTaskId, "", nil)
	if err != nil {
		return errors.Wrap(err, "Start NetworkRemoteUpdateTask")
	}
	net.SetStatus(ctx, userCred, apis.STATUS_UPDATE_TAGS, "StartRemoteUpdateTask")
	return task.ScheduleRun(nil)
}

func (net SNetwork) HasIPv4Addr() bool {
	return len(net.GuestIpStart) > 0 && len(net.GuestIpEnd) > 0
}

func (net SNetwork) HasIPv6Addr() bool {
	return len(net.GuestIp6Start) > 0 && len(net.GuestIp6End) > 0
}