fix: backport network avaialble addresses (#19112)

Co-authored-by: Qiu Jian <qiujian@yunionyun.com>

cmd/climc/shell/compute/networks.go

@@ -43,6 +43,7 @@ func init() {
 	cmd.Get("change-owner-candidate-domains", &compute_options.NetworkIdOptions{})
 	cmd.Perform("set-class-metadata", &options.ResourceMetadataOptions{})
 	cmd.Perform("switch-wire", &compute_options.NetworkSwitchWireOptions{})
+	cmd.Get("available-addresses", &compute_options.NetworkIdOptions{})
 
 	type NetworkShareOptions struct {
 		ID             string   `help:"ID or Name of the zone to show"`

pkg/apis/compute/network.go

@@ -425,6 +425,14 @@ type GetNetworkAddressesOutput struct {
 	Addresses []SNetworkUsedAddress `json:"addresses"`
 }
 
+type GetNetworkAvailableAddressesInput struct {
+}
+
+type GetNetworkAvailableAddressesOutput struct {
+	// IP子网地址记录
+	Addresses []string `json:"addresses"`
+}
+
 type NetworkSetBgpTypeInput struct {
 	apis.Meta
 

pkg/compute/models/networks.go

@@ -2886,6 +2886,28 @@ func (network *SNetwork) GetDetailsAddresses(ctx context.Context, userCred mccli
 	return output, nil
 }
 
+func (network *SNetwork) GetDetailsAvailableAddresses(
+	ctx context.Context,
+	userCred mcclient.TokenCredential,
+	input api.GetNetworkAvailableAddressesInput,
+) (api.GetNetworkAvailableAddressesOutput, error) {
+	var availables []string
+	addrTable := network.GetUsedAddresses()
+	recentUsedAddrTable := GuestnetworkManager.getRecentlyReleasedIPAddresses(network.Id, network.getAllocTimoutDuration())
+	addrRange := network.getIPRange()
+	for addr := addrRange.StartIp(); addr <= addrRange.EndIp(); addr = addr.StepUp() {
+		addrStr := addr.String()
+		if _, ok := addrTable[addrStr]; !ok {
+			if _, ok := recentUsedAddrTable[addrStr]; !ok {
+				availables = append(availables, addrStr)
+			}
+		}
+	}
+	return api.GetNetworkAvailableAddressesOutput{
+		Addresses: availables,
+	}, 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) {