mirror of
https://github.com/ceph/ceph-csi.git
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62 lines
1.8 KiB
Go
62 lines
1.8 KiB
Go
/*
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Copyright 2018 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package net
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import (
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"net"
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)
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// IsIPv6 returns if netIP is IPv6.
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func IsIPv6(netIP net.IP) bool {
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return netIP != nil && netIP.To4() == nil
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}
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// IsIPv6String returns if ip is IPv6.
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func IsIPv6String(ip string) bool {
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netIP := net.ParseIP(ip)
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return IsIPv6(netIP)
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}
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// IsIPv6CIDR returns if cidr is IPv6.
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// This assumes cidr is a valid CIDR.
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func IsIPv6CIDR(cidr string) bool {
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ip, _, _ := net.ParseCIDR(cidr)
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return IsIPv6(ip)
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}
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// FilterIncorrectIPVersion filters out the incorrect IP version case from a slice of IP strings.
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func FilterIncorrectIPVersion(ipStrings []string, isIPv6Mode bool) ([]string, []string) {
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return filterWithCondition(ipStrings, isIPv6Mode, IsIPv6String)
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}
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// FilterIncorrectCIDRVersion filters out the incorrect IP version case from a slice of CIDR strings.
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func FilterIncorrectCIDRVersion(ipStrings []string, isIPv6Mode bool) ([]string, []string) {
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return filterWithCondition(ipStrings, isIPv6Mode, IsIPv6CIDR)
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}
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func filterWithCondition(strs []string, expectedCondition bool, conditionFunc func(string) bool) ([]string, []string) {
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var corrects, incorrects []string
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for _, str := range strs {
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if conditionFunc(str) != expectedCondition {
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incorrects = append(incorrects, str)
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} else {
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corrects = append(corrects, str)
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}
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}
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return corrects, incorrects
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}
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