github.com/sacloud/iaas-api-go@v1.12.0/accessor/switch_subnet.go (about)

     1  // Copyright 2022-2023 The sacloud/iaas-api-go Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package accessor
    16  
    17  import (
    18  	"net"
    19  
    20  	"github.com/sacloud/packages-go/cidr"
    21  )
    22  
    23  // AssignedIPAddress スイッチ+ルータの割り当てられたIPアドレスリスト
    24  type AssignedIPAddress interface {
    25  	GetAssignedIPAddressMax() string
    26  	SetAssignedIPAddressMax(v string)
    27  	GetAssignedIPAddressMin() string
    28  	SetAssignedIPAddressMin(v string)
    29  }
    30  
    31  // GetAssignedIPAddresses 最小/最大IPアドレスからIPアドレスリストを算出して返す
    32  func GetAssignedIPAddresses(target AssignedIPAddress) []string {
    33  	base := net.ParseIP(target.GetAssignedIPAddressMin())
    34  	max := net.ParseIP(target.GetAssignedIPAddressMax())
    35  	addresses := []string{base.String()}
    36  
    37  	for {
    38  		current := cidr.Inc(base)
    39  		addresses = append(addresses, current.String())
    40  
    41  		if current.Equal(max) {
    42  			break
    43  		}
    44  		base = current
    45  	}
    46  
    47  	return addresses
    48  }