Refactor to use k8s.io/utils/net/ package instead of kubernetes/pkg/util/net/sets

Signed-off-by: Ashish Ranjan <ashishranjan738@gmail.com>

Godeps/Godeps.json

@@ -4120,6 +4120,10 @@
 			"ImportPath": "k8s.io/utils/keymutex",
 			"Rev": "ed37f7428a91fc2a81070808937195dcd46d320e"
 		},
+		{
+			"ImportPath": "k8s.io/utils/net",
+			"Rev": "ed37f7428a91fc2a81070808937195dcd46d320e"
+		},
 		{
 			"ImportPath": "k8s.io/utils/nsenter",
 			"Rev": "ed37f7428a91fc2a81070808937195dcd46d320e"

Godeps/LICENSES

@@ -116622,6 +116622,216 @@ third-party archives.
 ================================================================================
 
 
+================================================================================
+= vendor/k8s.io/utils/net licensed under: =
+
+
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+   Copyright [yyyy] [name of copyright owner]
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+   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
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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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+
+= vendor/k8s.io/utils/LICENSE 3b83ef96387f14655fc854ddc3c6bd57
+================================================================================
+
+
 ================================================================================
 = vendor/k8s.io/utils/nsenter licensed under: =
 

cmd/kubeadm/.import-restrictions

@@ -42,7 +42,8 @@
 				"k8s.io/utils/exec",
 				"k8s.io/utils/integer",
 				"k8s.io/utils/path",
-				"k8s.io/utils/pointer"
+				"k8s.io/utils/pointer",
+				"k8s.io/utils/net"
 			]
 		},
 		{
@@ -82,7 +83,6 @@
 				"k8s.io/kubernetes/pkg/util/initsystem",
 				"k8s.io/kubernetes/pkg/util/ipvs",
 				"k8s.io/kubernetes/pkg/util/metrics",
-				"k8s.io/kubernetes/pkg/util/net/sets",
 				"k8s.io/kubernetes/pkg/util/node",
 				"k8s.io/kubernetes/pkg/util/normalizer",
 				"k8s.io/kubernetes/pkg/util/parsers",

pkg/api/service/BUILD

@@ -12,7 +12,7 @@ go_library(
     importpath = "k8s.io/kubernetes/pkg/api/service",
     deps = [
         "//pkg/apis/core:go_default_library",
-        "//pkg/util/net/sets:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 
@@ -22,7 +22,7 @@ go_test(
     embed = [":go_default_library"],
     deps = [
         "//pkg/apis/core:go_default_library",
-        "//pkg/util/net/sets:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 

pkg/api/service/util.go

@@ -18,17 +18,18 @@ package service
 
 import (
 	"fmt"
-	api "k8s.io/kubernetes/pkg/apis/core"
-	netsets "k8s.io/kubernetes/pkg/util/net/sets"
 	"strings"
+
+	api "k8s.io/kubernetes/pkg/apis/core"
+	utilnet "k8s.io/utils/net"
 )
 
 const (
 	defaultLoadBalancerSourceRanges = "0.0.0.0/0"
 )
 
-// IsAllowAll checks whether the netsets.IPNet allows traffic from 0.0.0.0/0
+// IsAllowAll checks whether the utilnet.IPNet allows traffic from 0.0.0.0/0
-func IsAllowAll(ipnets netsets.IPNet) bool {
+func IsAllowAll(ipnets utilnet.IPNetSet) bool {
 	for _, s := range ipnets.StringSlice() {
 		if s == "0.0.0.0/0" {
 			return true
@@ -40,13 +41,13 @@ func IsAllowAll(ipnets netsets.IPNet) bool {
 // GetLoadBalancerSourceRanges first try to parse and verify LoadBalancerSourceRanges field from a service.
 // If the field is not specified, turn to parse and verify the AnnotationLoadBalancerSourceRangesKey annotation from a service,
 // extracting the source ranges to allow, and if not present returns a default (allow-all) value.
-func GetLoadBalancerSourceRanges(service *api.Service) (netsets.IPNet, error) {
+func GetLoadBalancerSourceRanges(service *api.Service) (utilnet.IPNetSet, error) {
-	var ipnets netsets.IPNet
+	var ipnets utilnet.IPNetSet
 	var err error
 	// if SourceRange field is specified, ignore sourceRange annotation
 	if len(service.Spec.LoadBalancerSourceRanges) > 0 {
 		specs := service.Spec.LoadBalancerSourceRanges
-		ipnets, err = netsets.ParseIPNets(specs...)
+		ipnets, err = utilnet.ParseIPNets(specs...)
 
 		if err != nil {
 			return nil, fmt.Errorf("service.Spec.LoadBalancerSourceRanges: %v is not valid. Expecting a list of IP ranges. For example, 10.0.0.0/24. Error msg: %v", specs, err)
@@ -58,7 +59,7 @@ func GetLoadBalancerSourceRanges(service *api.Service) (netsets.IPNet, error) {
 			val = defaultLoadBalancerSourceRanges
 		}
 		specs := strings.Split(val, ",")
-		ipnets, err = netsets.ParseIPNets(specs...)
+		ipnets, err = utilnet.ParseIPNets(specs...)
 		if err != nil {
 			return nil, fmt.Errorf("%s: %s is not valid. Expecting a comma-separated list of source IP ranges. For example, 10.0.0.0/24,192.168.2.0/24", api.AnnotationLoadBalancerSourceRangesKey, val)
 		}

pkg/api/service/util_test.go

@@ -21,7 +21,7 @@ import (
 	"testing"
 
 	api "k8s.io/kubernetes/pkg/apis/core"
-	netsets "k8s.io/kubernetes/pkg/util/net/sets"
+	utilnet "k8s.io/utils/net"
 )
 
 func TestGetLoadBalancerSourceRanges(t *testing.T) {
@@ -48,7 +48,7 @@ func TestGetLoadBalancerSourceRanges(t *testing.T) {
 	checkError("10.0.0.1/32, ")
 	checkError("10.0.0.1")
 
-	checkOK := func(v string) netsets.IPNet {
+	checkOK := func(v string) utilnet.IPNetSet {
 		annotations := make(map[string]string)
 		annotations[api.AnnotationLoadBalancerSourceRangesKey] = v
 		svc := api.Service{}
@@ -112,7 +112,7 @@ func TestGetLoadBalancerSourceRanges(t *testing.T) {
 
 func TestAllowAll(t *testing.T) {
 	checkAllowAll := func(allowAll bool, cidrs ...string) {
-		ipnets, err := netsets.ParseIPNets(cidrs...)
+		ipnets, err := utilnet.ParseIPNets(cidrs...)
 		if err != nil {
 			t.Errorf("Unexpected error parsing cidrs: %v", cidrs)
 		}

pkg/api/v1/service/BUILD

@@ -11,8 +11,8 @@ go_library(
     srcs = ["util.go"],
     importpath = "k8s.io/kubernetes/pkg/api/v1/service",
     deps = [
-        "//pkg/util/net/sets:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 
@@ -21,8 +21,8 @@ go_test(
     srcs = ["util_test.go"],
     embed = [":go_default_library"],
     deps = [
-        "//pkg/util/net/sets:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 

pkg/api/v1/service/util.go

@@ -21,15 +21,15 @@ import (
 	"strings"
 
 	"k8s.io/api/core/v1"
-	netsets "k8s.io/kubernetes/pkg/util/net/sets"
+	utilnet "k8s.io/utils/net"
 )
 
 const (
 	defaultLoadBalancerSourceRanges = "0.0.0.0/0"
 )
 
-// IsAllowAll checks whether the netsets.IPNet allows traffic from 0.0.0.0/0
+// IsAllowAll checks whether the utilnet.IPNet allows traffic from 0.0.0.0/0
-func IsAllowAll(ipnets netsets.IPNet) bool {
+func IsAllowAll(ipnets utilnet.IPNetSet) bool {
 	for _, s := range ipnets.StringSlice() {
 		if s == "0.0.0.0/0" {
 			return true
@@ -41,13 +41,13 @@ func IsAllowAll(ipnets netsets.IPNet) bool {
 // GetLoadBalancerSourceRanges first try to parse and verify LoadBalancerSourceRanges field from a service.
 // If the field is not specified, turn to parse and verify the AnnotationLoadBalancerSourceRangesKey annotation from a service,
 // extracting the source ranges to allow, and if not present returns a default (allow-all) value.
-func GetLoadBalancerSourceRanges(service *v1.Service) (netsets.IPNet, error) {
+func GetLoadBalancerSourceRanges(service *v1.Service) (utilnet.IPNetSet, error) {
-	var ipnets netsets.IPNet
+	var ipnets utilnet.IPNetSet
 	var err error
 	// if SourceRange field is specified, ignore sourceRange annotation
 	if len(service.Spec.LoadBalancerSourceRanges) > 0 {
 		specs := service.Spec.LoadBalancerSourceRanges
-		ipnets, err = netsets.ParseIPNets(specs...)
+		ipnets, err = utilnet.ParseIPNets(specs...)
 
 		if err != nil {
 			return nil, fmt.Errorf("service.Spec.LoadBalancerSourceRanges: %v is not valid. Expecting a list of IP ranges. For example, 10.0.0.0/24. Error msg: %v", specs, err)
@@ -59,7 +59,7 @@ func GetLoadBalancerSourceRanges(service *v1.Service) (netsets.IPNet, error) {
 			val = defaultLoadBalancerSourceRanges
 		}
 		specs := strings.Split(val, ",")
-		ipnets, err = netsets.ParseIPNets(specs...)
+		ipnets, err = utilnet.ParseIPNets(specs...)
 		if err != nil {
 			return nil, fmt.Errorf("%s: %s is not valid. Expecting a comma-separated list of source IP ranges. For example, 10.0.0.0/24,192.168.2.0/24", v1.AnnotationLoadBalancerSourceRangesKey, val)
 		}

pkg/api/v1/service/util_test.go

@@ -21,7 +21,7 @@ import (
 	"testing"
 
 	"k8s.io/api/core/v1"
-	netsets "k8s.io/kubernetes/pkg/util/net/sets"
+	utilnet "k8s.io/utils/net"
 )
 
 func TestGetLoadBalancerSourceRanges(t *testing.T) {
@@ -48,7 +48,7 @@ func TestGetLoadBalancerSourceRanges(t *testing.T) {
 	checkError("10.0.0.1/32, ")
 	checkError("10.0.0.1")
 
-	checkOK := func(v string) netsets.IPNet {
+	checkOK := func(v string) utilnet.IPNetSet {
 		annotations := make(map[string]string)
 		annotations[v1.AnnotationLoadBalancerSourceRangesKey] = v
 		svc := v1.Service{}
@@ -112,7 +112,7 @@ func TestGetLoadBalancerSourceRanges(t *testing.T) {
 
 func TestAllowAll(t *testing.T) {
 	checkAllowAll := func(allowAll bool, cidrs ...string) {
-		ipnets, err := netsets.ParseIPNets(cidrs...)
+		ipnets, err := utilnet.ParseIPNets(cidrs...)
 		if err != nil {
 			t.Errorf("Unexpected error parsing cidrs: %v", cidrs)
 		}

pkg/cloudprovider/providers/.import-restrictions

@@ -1,25 +1,34 @@
 {
 	"Rules": [
-	  {
+		{
-		"SelectorRegexp": "k8s[.]io/kubernetes",
+			"SelectorRegexp": "k8s[.]io/utils",
-		"AllowedPrefixes": [
+			"AllowedPrefixes": [
-		    "k8s.io/kubernetes/pkg/api/legacyscheme",
+				"k8s.io/utils/net",
-		    "k8s.io/kubernetes/pkg/api/service",
+				"k8s.io/utils/nsenter",
-		    "k8s.io/kubernetes/pkg/api/v1/service",
+				"k8s.io/utils/io",
-		    "k8s.io/kubernetes/pkg/apis/core",
+				"k8s.io/utils/strings",
-		    "k8s.io/kubernetes/pkg/cloudprovider",
+				"k8s.io/utils/exec",
-		    "k8s.io/kubernetes/pkg/credentialprovider",
+				"k8s.io/utils/path"
-		    "k8s.io/kubernetes/pkg/features",
+			]
-		    "k8s.io/kubernetes/pkg/kubelet/apis",
+		},
-		    "k8s.io/kubernetes/pkg/master/ports",
+		{
-		    "k8s.io/kubernetes/pkg/util/mount",
+			"SelectorRegexp": "k8s[.]io/kubernetes",
-		    "k8s.io/kubernetes/pkg/util/net/sets",
+			"AllowedPrefixes": [
-		    "k8s.io/kubernetes/pkg/util/resizefs",
+				"k8s.io/kubernetes/pkg/api/legacyscheme",
-		    "k8s.io/kubernetes/pkg/version",
+				"k8s.io/kubernetes/pkg/api/service",
-		    "k8s.io/kubernetes/pkg/volume"
+				"k8s.io/kubernetes/pkg/api/v1/service",
-		],
+				"k8s.io/kubernetes/pkg/apis/core",
-		"ForbiddenPrefixes": [
+				"k8s.io/kubernetes/pkg/cloudprovider",
-		]
+				"k8s.io/kubernetes/pkg/credentialprovider",
-	  }
+				"k8s.io/kubernetes/pkg/features",
+				"k8s.io/kubernetes/pkg/kubelet/apis",
+				"k8s.io/kubernetes/pkg/master/ports",
+				"k8s.io/kubernetes/pkg/util/mount",
+				"k8s.io/kubernetes/pkg/util/resizefs",
+				"k8s.io/kubernetes/pkg/version",
+				"k8s.io/kubernetes/pkg/volume"
+			],
+			"ForbiddenPrefixes": []
+		}
 	]
-}
+}

pkg/cloudprovider/providers/gce/BUILD

@@ -48,7 +48,6 @@ go_library(
     deps = [
         "//pkg/api/v1/service:go_default_library",
         "//pkg/kubelet/apis:go_default_library",
-        "//pkg/util/net/sets:go_default_library",
         "//pkg/volume:go_default_library",
         "//pkg/volume/util:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
@@ -89,6 +88,7 @@ go_library(
         "//vendor/google.golang.org/api/tpu/v1:go_default_library",
         "//vendor/gopkg.in/gcfg.v1:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 
@@ -111,7 +111,6 @@ go_test(
     deps = [
         "//pkg/api/v1/service:go_default_library",
         "//pkg/kubelet/apis:go_default_library",
-        "//pkg/util/net/sets:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
@@ -128,6 +127,7 @@ go_test(
         "//vendor/google.golang.org/api/compute/v0.beta:go_default_library",
         "//vendor/google.golang.org/api/compute/v1:go_default_library",
         "//vendor/google.golang.org/api/googleapi:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 

pkg/cloudprovider/providers/gce/gce_loadbalancer.go

@@ -24,16 +24,16 @@ import (
 	"sort"
 	"strings"
 
+	"k8s.io/api/core/v1"
 	"k8s.io/klog"
 
 	"github.com/GoogleCloudPlatform/k8s-cloud-provider/pkg/cloud"
-	"k8s.io/api/core/v1"
 	cloudprovider "k8s.io/cloud-provider"
-	netsets "k8s.io/kubernetes/pkg/util/net/sets"
+	utilnet "k8s.io/utils/net"
 )
 
 type cidrs struct {
-	ipn   netsets.IPNet
+	ipn   utilnet.IPNetSet
 	isSet bool
 }
 
@@ -44,7 +44,7 @@ var (
 func init() {
 	var err error
 	// LB L7 proxies and all L3/4/7 health checkers have client addresses within these known CIDRs.
-	lbSrcRngsFlag.ipn, err = netsets.ParseIPNets([]string{"130.211.0.0/22", "35.191.0.0/16", "209.85.152.0/22", "209.85.204.0/22"}...)
+	lbSrcRngsFlag.ipn, err = utilnet.ParseIPNets([]string{"130.211.0.0/22", "35.191.0.0/16", "209.85.152.0/22", "209.85.204.0/22"}...)
 	if err != nil {
 		panic("Incorrect default GCE L7 source ranges")
 	}
@@ -64,7 +64,7 @@ func (c *cidrs) Set(value string) error {
 	// On first Set(), clear the original defaults
 	if !c.isSet {
 		c.isSet = true
-		c.ipn = make(netsets.IPNet)
+		c.ipn = make(utilnet.IPNetSet)
 	} else {
 		return fmt.Errorf("GCE LB CIDRs have already been set")
 	}

pkg/cloudprovider/providers/gce/gce_loadbalancer_external.go

@@ -29,7 +29,7 @@ import (
 	utilerrors "k8s.io/apimachinery/pkg/util/errors"
 	"k8s.io/apimachinery/pkg/util/sets"
 	apiservice "k8s.io/kubernetes/pkg/api/v1/service"
-	netsets "k8s.io/kubernetes/pkg/util/net/sets"
+	utilnet "k8s.io/utils/net"
 
 	computealpha "google.golang.org/api/compute/v0.alpha"
 	compute "google.golang.org/api/compute/v1"
@@ -819,7 +819,7 @@ func translateAffinityType(affinityType v1.ServiceAffinity) string {
 	}
 }
 
-func (g *Cloud) firewallNeedsUpdate(name, serviceName, region, ipAddress string, ports []v1.ServicePort, sourceRanges netsets.IPNet) (exists bool, needsUpdate bool, err error) {
+func (g *Cloud) firewallNeedsUpdate(name, serviceName, region, ipAddress string, ports []v1.ServicePort, sourceRanges utilnet.IPNetSet) (exists bool, needsUpdate bool, err error) {
 	fw, err := g.GetFirewall(MakeFirewallName(name))
 	if err != nil {
 		if isHTTPErrorCode(err, http.StatusNotFound) {
@@ -843,7 +843,7 @@ func (g *Cloud) firewallNeedsUpdate(name, serviceName, region, ipAddress string,
 	}
 	// The service controller already verified that the protocol matches on all ports, no need to check.
 
-	actualSourceRanges, err := netsets.ParseIPNets(fw.SourceRanges...)
+	actualSourceRanges, err := utilnet.ParseIPNets(fw.SourceRanges...)
 	if err != nil {
 		// This really shouldn't happen... GCE has returned something unexpected
 		klog.Warningf("Error parsing firewall SourceRanges: %v", fw.SourceRanges)
@@ -934,7 +934,7 @@ func createForwardingRule(s CloudForwardingRuleService, name, serviceName, regio
 	return nil
 }
 
-func (g *Cloud) createFirewall(svc *v1.Service, name, region, desc string, sourceRanges netsets.IPNet, ports []v1.ServicePort, hosts []*gceInstance) error {
+func (g *Cloud) createFirewall(svc *v1.Service, name, region, desc string, sourceRanges utilnet.IPNetSet, ports []v1.ServicePort, hosts []*gceInstance) error {
 	firewall, err := g.firewallObject(name, region, desc, sourceRanges, ports, hosts)
 	if err != nil {
 		return err
@@ -952,7 +952,7 @@ func (g *Cloud) createFirewall(svc *v1.Service, name, region, desc string, sourc
 	return nil
 }
 
-func (g *Cloud) updateFirewall(svc *v1.Service, name, region, desc string, sourceRanges netsets.IPNet, ports []v1.ServicePort, hosts []*gceInstance) error {
+func (g *Cloud) updateFirewall(svc *v1.Service, name, region, desc string, sourceRanges utilnet.IPNetSet, ports []v1.ServicePort, hosts []*gceInstance) error {
 	firewall, err := g.firewallObject(name, region, desc, sourceRanges, ports, hosts)
 	if err != nil {
 		return err
@@ -971,7 +971,7 @@ func (g *Cloud) updateFirewall(svc *v1.Service, name, region, desc string, sourc
 	return nil
 }
 
-func (g *Cloud) firewallObject(name, region, desc string, sourceRanges netsets.IPNet, ports []v1.ServicePort, hosts []*gceInstance) (*compute.Firewall, error) {
+func (g *Cloud) firewallObject(name, region, desc string, sourceRanges utilnet.IPNetSet, ports []v1.ServicePort, hosts []*gceInstance) (*compute.Firewall, error) {
 	allowedPorts := make([]string, len(ports))
 	for ix := range ports {
 		allowedPorts[ix] = strconv.Itoa(int(ports[ix].Port))

pkg/cloudprovider/providers/gce/gce_loadbalancer_external_test.go

@@ -34,7 +34,7 @@ import (
 	"k8s.io/api/core/v1"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/client-go/tools/record"
-	netsets "k8s.io/kubernetes/pkg/util/net/sets"
+	utilnet "k8s.io/utils/net"
 )
 
 func TestEnsureStaticIP(t *testing.T) {
@@ -620,10 +620,10 @@ func TestFirewallNeedsUpdate(t *testing.T) {
 	ipAddr := status.Ingress[0].IP
 	lbName := gce.GetLoadBalancerName(context.TODO(), "", svc)
 
-	ipnet, err := netsets.ParseIPNets("0.0.0.0/0")
+	ipnet, err := utilnet.ParseIPNets("0.0.0.0/0")
 	require.NoError(t, err)
 
-	wrongIpnet, err := netsets.ParseIPNets("1.0.0.0/10")
+	wrongIpnet, err := utilnet.ParseIPNets("1.0.0.0/10")
 	require.NoError(t, err)
 
 	fw, err := gce.GetFirewall(MakeFirewallName(lbName))
@@ -633,7 +633,7 @@ func TestFirewallNeedsUpdate(t *testing.T) {
 		lbName       string
 		ipAddr       string
 		ports        []v1.ServicePort
-		ipnet        netsets.IPNet
+		ipnet        utilnet.IPNetSet
 		fwIPProtocol string
 		getHook      func(context.Context, *meta.Key, *cloud.MockFirewalls) (bool, *ga.Firewall, error)
 		sourceRange  string
@@ -864,7 +864,7 @@ func TestCreateAndUpdateFirewallSucceedsOnXPN(t *testing.T) {
 	hostNames := nodeNames(nodes)
 	hosts, err := gce.getInstancesByNames(hostNames)
 	require.NoError(t, err)
-	ipnet, err := netsets.ParseIPNets("10.0.0.0/20")
+	ipnet, err := utilnet.ParseIPNets("10.0.0.0/20")
 	require.NoError(t, err)
 	gce.createFirewall(
 		svc,

pkg/controller/.import-restrictions

@@ -307,7 +307,6 @@
         "k8s.io/kubernetes/pkg/scheduler/api",
         "k8s.io/kubernetes/pkg/scheduler/util",
         "k8s.io/kubernetes/pkg/security/apparmor",
-        "k8s.io/kubernetes/pkg/util/net/sets",
         "k8s.io/kubernetes/pkg/util/parsers",
         "k8s.io/kubernetes/pkg/fieldpath",
         "k8s.io/kubernetes/pkg/scheduler/volumebinder",
@@ -342,7 +341,8 @@
         "k8s.io/utils/path",
         "k8s.io/utils/pointer",
         "k8s.io/utils/exec",
-        "k8s.io/utils/strings"
+        "k8s.io/utils/strings",
+        "k8s.io/utils/net"
       ]
     },
     {

pkg/kubectl/.import-restrictions

@@ -132,7 +132,6 @@
                 "k8s.io/kubernetes/pkg/util/labels",
                 "k8s.io/kubernetes/pkg/util/metrics",
                 "k8s.io/kubernetes/pkg/util/mount",
-                "k8s.io/kubernetes/pkg/util/net/sets",
                 "k8s.io/kubernetes/pkg/util/node",
                 "k8s.io/kubernetes/pkg/util/parsers",
                 "k8s.io/kubernetes/pkg/util/slice",
@@ -144,7 +143,8 @@
                 "k8s.io/utils/nsenter",
                 "k8s.io/utils/io",
                 "k8s.io/utils/path",
-                "k8s.io/utils/pointer"
+                "k8s.io/utils/pointer",
+                "k8s.io/utils/net"
 		],
 		"ForbiddenPrefixes": []
 	}]

pkg/kubelet/dockershim/network/hostport/BUILD

@@ -19,12 +19,12 @@ go_library(
         "//pkg/proxy/iptables:go_default_library",
         "//pkg/util/conntrack:go_default_library",
         "//pkg/util/iptables:go_default_library",
-        "//pkg/util/net:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/errors:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/sets:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
         "//vendor/k8s.io/utils/exec:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 

pkg/kubelet/dockershim/network/hostport/hostport_manager.go

@@ -31,8 +31,8 @@ import (
 	iptablesproxy "k8s.io/kubernetes/pkg/proxy/iptables"
 	"k8s.io/kubernetes/pkg/util/conntrack"
 	utiliptables "k8s.io/kubernetes/pkg/util/iptables"
-	utilnet "k8s.io/kubernetes/pkg/util/net"
 	"k8s.io/utils/exec"
+	utilnet "k8s.io/utils/net"
 )
 
 // HostPortManager is an interface for adding and removing hostport for a given pod sandbox.

pkg/proxy/BUILD

@@ -18,12 +18,12 @@ go_library(
     deps = [
         "//pkg/api/v1/service:go_default_library",
         "//pkg/proxy/util:go_default_library",
-        "//pkg/util/net:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/sets:go_default_library",
         "//staging/src/k8s.io/client-go/tools/record:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 

pkg/proxy/endpoints.go

@@ -29,7 +29,7 @@ import (
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/client-go/tools/record"
 	utilproxy "k8s.io/kubernetes/pkg/proxy/util"
-	utilnet "k8s.io/kubernetes/pkg/util/net"
+	utilnet "k8s.io/utils/net"
 )
 
 // BaseEndpointInfo contains base information that defines an endpoint.

pkg/proxy/iptables/BUILD

@@ -18,7 +18,6 @@ go_library(
         "//pkg/util/async:go_default_library",
         "//pkg/util/conntrack:go_default_library",
         "//pkg/util/iptables:go_default_library",
-        "//pkg/util/net:go_default_library",
         "//pkg/util/sysctl:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
@@ -27,6 +26,7 @@ go_library(
         "//staging/src/k8s.io/client-go/tools/record:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
         "//vendor/k8s.io/utils/exec:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 

pkg/proxy/iptables/proxier.go

@@ -46,9 +46,9 @@ import (
 	"k8s.io/kubernetes/pkg/util/async"
 	"k8s.io/kubernetes/pkg/util/conntrack"
 	utiliptables "k8s.io/kubernetes/pkg/util/iptables"
-	utilnet "k8s.io/kubernetes/pkg/util/net"
 	utilsysctl "k8s.io/kubernetes/pkg/util/sysctl"
 	utilexec "k8s.io/utils/exec"
+	utilnet "k8s.io/utils/net"
 )
 
 const (
@@ -317,7 +317,7 @@ func NewProxier(ipt utiliptables.Interface,
 
 	if len(clusterCIDR) == 0 {
 		klog.Warning("clusterCIDR not specified, unable to distinguish between internal and external traffic")
-	} else if utilnet.IsIPv6CIDR(clusterCIDR) != ipt.IsIpv6() {
+	} else if utilnet.IsIPv6CIDRString(clusterCIDR) != ipt.IsIpv6() {
 		return nil, fmt.Errorf("clusterCIDR %s has incorrect IP version: expect isIPv6=%t", clusterCIDR, ipt.IsIpv6())
 	}
 

pkg/proxy/ipvs/BUILD

@@ -55,7 +55,6 @@ go_library(
         "//pkg/util/ipset:go_default_library",
         "//pkg/util/iptables:go_default_library",
         "//pkg/util/ipvs:go_default_library",
-        "//pkg/util/net:go_default_library",
         "//pkg/util/sysctl:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
@@ -65,6 +64,7 @@ go_library(
         "//staging/src/k8s.io/client-go/tools/record:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
         "//vendor/k8s.io/utils/exec:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ] + select({
         "@io_bazel_rules_go//go/platform:linux": [
             "//vendor/github.com/vishvananda/netlink:go_default_library",

pkg/proxy/ipvs/proxier.go

@@ -44,9 +44,9 @@ import (
 	utilipset "k8s.io/kubernetes/pkg/util/ipset"
 	utiliptables "k8s.io/kubernetes/pkg/util/iptables"
 	utilipvs "k8s.io/kubernetes/pkg/util/ipvs"
-	utilnet "k8s.io/kubernetes/pkg/util/net"
 	utilsysctl "k8s.io/kubernetes/pkg/util/sysctl"
 	utilexec "k8s.io/utils/exec"
+	utilnet "k8s.io/utils/net"
 )
 
 const (
@@ -373,7 +373,7 @@ func NewProxier(ipt utiliptables.Interface,
 
 	if len(clusterCIDR) == 0 {
 		klog.Warningf("clusterCIDR not specified, unable to distinguish between internal and external traffic")
-	} else if utilnet.IsIPv6CIDR(clusterCIDR) != isIPv6 {
+	} else if utilnet.IsIPv6CIDRString(clusterCIDR) != isIPv6 {
 		return nil, fmt.Errorf("clusterCIDR %s has incorrect IP version: expect isIPv6=%t", clusterCIDR, isIPv6)
 	}
 

pkg/proxy/service.go

@@ -31,7 +31,7 @@ import (
 	"k8s.io/client-go/tools/record"
 	apiservice "k8s.io/kubernetes/pkg/api/v1/service"
 	utilproxy "k8s.io/kubernetes/pkg/proxy/util"
-	utilnet "k8s.io/kubernetes/pkg/util/net"
+	utilnet "k8s.io/utils/net"
 )
 
 // BaseServiceInfo contains base information that defines a service.
@@ -111,11 +111,11 @@ func (sct *ServiceChangeTracker) newBaseServiceInfo(port *v1.ServicePort, servic
 		// If ExternalIPs and LoadBalancerSourceRanges on service contains incorrect IP versions,
 		// only filter out the incorrect ones.
 		var incorrectIPs []string
-		info.ExternalIPs, incorrectIPs = utilnet.FilterIncorrectIPVersion(service.Spec.ExternalIPs, *sct.isIPv6Mode)
+		info.ExternalIPs, incorrectIPs = utilproxy.FilterIncorrectIPVersion(service.Spec.ExternalIPs, *sct.isIPv6Mode)
 		if len(incorrectIPs) > 0 {
 			utilproxy.LogAndEmitIncorrectIPVersionEvent(sct.recorder, "externalIPs", strings.Join(incorrectIPs, ","), service.Namespace, service.Name, service.UID)
 		}
-		info.LoadBalancerSourceRanges, incorrectIPs = utilnet.FilterIncorrectCIDRVersion(service.Spec.LoadBalancerSourceRanges, *sct.isIPv6Mode)
+		info.LoadBalancerSourceRanges, incorrectIPs = utilproxy.FilterIncorrectCIDRVersion(service.Spec.LoadBalancerSourceRanges, *sct.isIPv6Mode)
 		if len(incorrectIPs) > 0 {
 			utilproxy.LogAndEmitIncorrectIPVersionEvent(sct.recorder, "loadBalancerSourceRanges", strings.Join(incorrectIPs, ","), service.Namespace, service.Name, service.UID)
 		}

pkg/proxy/util/BUILD

@@ -12,12 +12,12 @@ go_library(
     visibility = ["//visibility:public"],
     deps = [
         "//pkg/apis/core/v1/helper:go_default_library",
-        "//pkg/util/net:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/types:go_default_library",
         "//staging/src/k8s.io/apimachinery/pkg/util/sets:go_default_library",
         "//staging/src/k8s.io/client-go/tools/record:go_default_library",
         "//vendor/k8s.io/klog:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 

pkg/proxy/util/utils.go

@@ -27,7 +27,7 @@ import (
 	"k8s.io/apimachinery/pkg/util/sets"
 	"k8s.io/client-go/tools/record"
 	helper "k8s.io/kubernetes/pkg/apis/core/v1/helper"
-	utilnet "k8s.io/kubernetes/pkg/util/net"
+	utilnet "k8s.io/utils/net"
 
 	"k8s.io/klog"
 )
@@ -192,3 +192,25 @@ func LogAndEmitIncorrectIPVersionEvent(recorder record.EventRecorder, fieldName,
 			}, v1.EventTypeWarning, "KubeProxyIncorrectIPVersion", errMsg)
 	}
 }
+
+// FilterIncorrectIPVersion filters out the incorrect IP version case from a slice of IP strings.
+func FilterIncorrectIPVersion(ipStrings []string, isIPv6Mode bool) ([]string, []string) {
+	return filterWithCondition(ipStrings, isIPv6Mode, utilnet.IsIPv6String)
+}
+
+// FilterIncorrectCIDRVersion filters out the incorrect IP version case from a slice of CIDR strings.
+func FilterIncorrectCIDRVersion(ipStrings []string, isIPv6Mode bool) ([]string, []string) {
+	return filterWithCondition(ipStrings, isIPv6Mode, utilnet.IsIPv6CIDRString)
+}
+
+func filterWithCondition(strs []string, expectedCondition bool, conditionFunc func(string) bool) ([]string, []string) {
+	var corrects, incorrects []string
+	for _, str := range strs {
+		if conditionFunc(str) != expectedCondition {
+			incorrects = append(incorrects, str)
+		} else {
+			corrects = append(corrects, str)
+		}
+	}
+	return corrects, incorrects
+}

pkg/util/BUILD

@@ -35,7 +35,6 @@ filegroup(
         "//pkg/util/maps:all-srcs",
         "//pkg/util/metrics:all-srcs",
         "//pkg/util/mount:all-srcs",
-        "//pkg/util/net:all-srcs",
         "//pkg/util/netsh:all-srcs",
         "//pkg/util/node:all-srcs",
         "//pkg/util/normalizer:all-srcs",

pkg/util/conntrack/BUILD

@@ -6,9 +6,9 @@ go_library(
     importpath = "k8s.io/kubernetes/pkg/util/conntrack",
     visibility = ["//visibility:public"],
     deps = [
-        "//pkg/util/net:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//vendor/k8s.io/utils/exec:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 
@@ -17,10 +17,10 @@ go_test(
     srcs = ["conntrack_test.go"],
     embed = [":go_default_library"],
     deps = [
-        "//pkg/util/net:go_default_library",
         "//staging/src/k8s.io/api/core/v1:go_default_library",
         "//vendor/k8s.io/utils/exec:go_default_library",
         "//vendor/k8s.io/utils/exec/testing:go_default_library",
+        "//vendor/k8s.io/utils/net:go_default_library",
     ],
 )
 

pkg/util/conntrack/conntrack.go

@@ -22,8 +22,8 @@ import (
 	"strings"
 
 	"k8s.io/api/core/v1"
-	utilnet "k8s.io/kubernetes/pkg/util/net"
 	"k8s.io/utils/exec"
+	utilnet "k8s.io/utils/net"
 )
 
 // Utilities for dealing with conntrack

pkg/util/conntrack/conntrack_test.go

@@ -22,9 +22,9 @@ import (
 	"testing"
 
 	"k8s.io/api/core/v1"
-	utilnet "k8s.io/kubernetes/pkg/util/net"
 	"k8s.io/utils/exec"
 	fakeexec "k8s.io/utils/exec/testing"
+	utilnet "k8s.io/utils/net"
 )
 
 func familyParamStr(isIPv6 bool) string {

pkg/util/net/BUILD

@@ -1,31 +0,0 @@
-load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
-
-package(default_visibility = ["//visibility:public"])
-
-filegroup(
-    name = "package-srcs",
-    srcs = glob(["**"]),
-    tags = ["automanaged"],
-    visibility = ["//visibility:private"],
-)
-
-filegroup(
-    name = "all-srcs",
-    srcs = [
-        ":package-srcs",
-        "//pkg/util/net/sets:all-srcs",
-    ],
-    tags = ["automanaged"],
-)
-
-go_library(
-    name = "go_default_library",
-    srcs = ["net.go"],
-    importpath = "k8s.io/kubernetes/pkg/util/net",
-)
-
-go_test(
-    name = "go_default_test",
-    srcs = ["net_test.go"],
-    embed = [":go_default_library"],
-)

pkg/util/net/OWNERS

@@ -1,4 +0,0 @@
-reviewers:
-  - sig-network-reviewers
-approvers:
-  - sig-network-approvers

pkg/util/net/net.go

@@ -1,61 +0,0 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-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 net
-
-import (
-	"net"
-)
-
-// IsIPv6 returns if netIP is IPv6.
-func IsIPv6(netIP net.IP) bool {
-	return netIP != nil && netIP.To4() == nil
-}
-
-// IsIPv6String returns if ip is IPv6.
-func IsIPv6String(ip string) bool {
-	netIP := net.ParseIP(ip)
-	return IsIPv6(netIP)
-}
-
-// IsIPv6CIDR returns if cidr is IPv6.
-// This assumes cidr is a valid CIDR.
-func IsIPv6CIDR(cidr string) bool {
-	ip, _, _ := net.ParseCIDR(cidr)
-	return IsIPv6(ip)
-}
-
-// FilterIncorrectIPVersion filters out the incorrect IP version case from a slice of IP strings.
-func FilterIncorrectIPVersion(ipStrings []string, isIPv6Mode bool) ([]string, []string) {
-	return filterWithCondition(ipStrings, isIPv6Mode, IsIPv6String)
-}
-
-// FilterIncorrectCIDRVersion filters out the incorrect IP version case from a slice of CIDR strings.
-func FilterIncorrectCIDRVersion(ipStrings []string, isIPv6Mode bool) ([]string, []string) {
-	return filterWithCondition(ipStrings, isIPv6Mode, IsIPv6CIDR)
-}
-
-func filterWithCondition(strs []string, expectedCondition bool, conditionFunc func(string) bool) ([]string, []string) {
-	var corrects, incorrects []string
-	for _, str := range strs {
-		if conditionFunc(str) != expectedCondition {
-			incorrects = append(incorrects, str)
-		} else {
-			corrects = append(corrects, str)
-		}
-	}
-	return corrects, incorrects
-}

pkg/util/net/net_test.go

@@ -1,286 +0,0 @@
-/*
-Copyright 2018 The Kubernetes Authors.
-
-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 net
-
-import (
-	"net"
-	"reflect"
-	"testing"
-)
-
-func TestIsIPv6String(t *testing.T) {
-	testCases := []struct {
-		ip         string
-		expectIPv6 bool
-	}{
-		{
-			ip:         "127.0.0.1",
-			expectIPv6: false,
-		},
-		{
-			ip:         "192.168.0.0",
-			expectIPv6: false,
-		},
-		{
-			ip:         "1.2.3.4",
-			expectIPv6: false,
-		},
-		{
-			ip:         "bad ip",
-			expectIPv6: false,
-		},
-		{
-			ip:         "::1",
-			expectIPv6: true,
-		},
-		{
-			ip:         "fd00::600d:f00d",
-			expectIPv6: true,
-		},
-		{
-			ip:         "2001:db8::5",
-			expectIPv6: true,
-		},
-	}
-	for i := range testCases {
-		isIPv6 := IsIPv6String(testCases[i].ip)
-		if isIPv6 != testCases[i].expectIPv6 {
-			t.Errorf("[%d] Expect ipv6 %v, got %v", i+1, testCases[i].expectIPv6, isIPv6)
-		}
-	}
-}
-
-func TestIsIPv6(t *testing.T) {
-	testCases := []struct {
-		ip         net.IP
-		expectIPv6 bool
-	}{
-		{
-			ip:         net.IPv4zero,
-			expectIPv6: false,
-		},
-		{
-			ip:         net.IPv4bcast,
-			expectIPv6: false,
-		},
-		{
-			ip:         net.ParseIP("127.0.0.1"),
-			expectIPv6: false,
-		},
-		{
-			ip:         net.ParseIP("10.20.40.40"),
-			expectIPv6: false,
-		},
-		{
-			ip:         net.ParseIP("172.17.3.0"),
-			expectIPv6: false,
-		},
-		{
-			ip:         nil,
-			expectIPv6: false,
-		},
-		{
-			ip:         net.IPv6loopback,
-			expectIPv6: true,
-		},
-		{
-			ip:         net.IPv6zero,
-			expectIPv6: true,
-		},
-		{
-			ip:         net.ParseIP("fd00::600d:f00d"),
-			expectIPv6: true,
-		},
-		{
-			ip:         net.ParseIP("2001:db8::5"),
-			expectIPv6: true,
-		},
-	}
-	for i := range testCases {
-		isIPv6 := IsIPv6(testCases[i].ip)
-		if isIPv6 != testCases[i].expectIPv6 {
-			t.Errorf("[%d] Expect ipv6 %v, got %v", i+1, testCases[i].expectIPv6, isIPv6)
-		}
-	}
-}
-
-func TestIsIPv6CIDR(t *testing.T) {
-	testCases := []struct {
-		desc         string
-		cidr         string
-		expectResult bool
-	}{
-		{
-			desc:         "ipv4 CIDR 1",
-			cidr:         "10.0.0.0/8",
-			expectResult: false,
-		},
-		{
-			desc:         "ipv4 CIDR 2",
-			cidr:         "192.168.0.0/16",
-			expectResult: false,
-		},
-		{
-			desc:         "ipv6 CIDR 1",
-			cidr:         "::/1",
-			expectResult: true,
-		},
-		{
-			desc:         "ipv6 CIDR 2",
-			cidr:         "2000::/10",
-			expectResult: true,
-		},
-		{
-			desc:         "ipv6 CIDR 3",
-			cidr:         "2001:db8::/32",
-			expectResult: true,
-		},
-	}
-
-	for _, tc := range testCases {
-		res := IsIPv6CIDR(tc.cidr)
-		if res != tc.expectResult {
-			t.Errorf("%v: want IsIPv6CIDR=%v, got %v", tc.desc, tc.expectResult, res)
-		}
-	}
-}
-
-func TestFilterIncorrectIPVersion(t *testing.T) {
-	testCases := []struct {
-		desc             string
-		isIPv6           bool
-		ipStrings        []string
-		expectCorrects   []string
-		expectIncorrects []string
-	}{
-		{
-			desc:             "all ipv4 strings in ipv4 mode",
-			isIPv6:           false,
-			ipStrings:        []string{"10.0.0.1", "192.168.0.1", "127.0.0.1"},
-			expectCorrects:   []string{"10.0.0.1", "192.168.0.1", "127.0.0.1"},
-			expectIncorrects: nil,
-		},
-		{
-			desc:             "all ipv6 strings in ipv4 mode",
-			isIPv6:           false,
-			ipStrings:        []string{"::1", "fd00::600d:f00d", "2001:db8::5"},
-			expectCorrects:   nil,
-			expectIncorrects: []string{"::1", "fd00::600d:f00d", "2001:db8::5"},
-		},
-		{
-			desc:             "mixed versions in ipv4 mode",
-			isIPv6:           false,
-			ipStrings:        []string{"10.0.0.1", "192.168.0.1", "127.0.0.1", "::1", "fd00::600d:f00d", "2001:db8::5"},
-			expectCorrects:   []string{"10.0.0.1", "192.168.0.1", "127.0.0.1"},
-			expectIncorrects: []string{"::1", "fd00::600d:f00d", "2001:db8::5"},
-		},
-		{
-			desc:             "all ipv4 strings in ipv6 mode",
-			isIPv6:           true,
-			ipStrings:        []string{"10.0.0.1", "192.168.0.1", "127.0.0.1"},
-			expectCorrects:   nil,
-			expectIncorrects: []string{"10.0.0.1", "192.168.0.1", "127.0.0.1"},
-		},
-		{
-			desc:             "all ipv6 strings in ipv6 mode",
-			isIPv6:           true,
-			ipStrings:        []string{"::1", "fd00::600d:f00d", "2001:db8::5"},
-			expectCorrects:   []string{"::1", "fd00::600d:f00d", "2001:db8::5"},
-			expectIncorrects: nil,
-		},
-		{
-			desc:             "mixed versions in ipv6 mode",
-			isIPv6:           true,
-			ipStrings:        []string{"10.0.0.1", "192.168.0.1", "127.0.0.1", "::1", "fd00::600d:f00d", "2001:db8::5"},
-			expectCorrects:   []string{"::1", "fd00::600d:f00d", "2001:db8::5"},
-			expectIncorrects: []string{"10.0.0.1", "192.168.0.1", "127.0.0.1"},
-		},
-	}
-
-	for _, tc := range testCases {
-		corrects, incorrects := FilterIncorrectIPVersion(tc.ipStrings, tc.isIPv6)
-		if !reflect.DeepEqual(tc.expectCorrects, corrects) {
-			t.Errorf("%v: want corrects=%v, got %v", tc.desc, tc.expectCorrects, corrects)
-		}
-		if !reflect.DeepEqual(tc.expectIncorrects, incorrects) {
-			t.Errorf("%v: want incorrects=%v, got %v", tc.desc, tc.expectIncorrects, incorrects)
-		}
-	}
-}
-
-func TestFilterIncorrectCIDRVersion(t *testing.T) {
-	testCases := []struct {
-		desc             string
-		isIPv6           bool
-		cidrStrings      []string
-		expectCorrects   []string
-		expectIncorrects []string
-	}{
-		{
-			desc:             "all ipv4 strings in ipv4 mode",
-			isIPv6:           false,
-			cidrStrings:      []string{"0.0.0.0/1", "1.0.0.0/1"},
-			expectCorrects:   []string{"0.0.0.0/1", "1.0.0.0/1"},
-			expectIncorrects: nil,
-		},
-		{
-			desc:             "all ipv6 strings in ipv4 mode",
-			isIPv6:           false,
-			cidrStrings:      []string{"2001:db8::/32", "2001:0db8:0123:4567::/64"},
-			expectCorrects:   nil,
-			expectIncorrects: []string{"2001:db8::/32", "2001:0db8:0123:4567::/64"},
-		},
-		{
-			desc:             "mixed versions in ipv4 mode",
-			isIPv6:           false,
-			cidrStrings:      []string{"0.0.0.0/1", "1.0.0.0/1", "2001:db8::/32", "2001:0db8:0123:4567::/64"},
-			expectCorrects:   []string{"0.0.0.0/1", "1.0.0.0/1"},
-			expectIncorrects: []string{"2001:db8::/32", "2001:0db8:0123:4567::/64"},
-		},
-		{
-			desc:             "all ipv4 strings in ipv6 mode",
-			isIPv6:           true,
-			cidrStrings:      []string{"0.0.0.0/1", "1.0.0.0/1"},
-			expectCorrects:   nil,
-			expectIncorrects: []string{"0.0.0.0/1", "1.0.0.0/1"},
-		},
-		{
-			desc:             "all ipv6 strings in ipv6 mode",
-			isIPv6:           true,
-			cidrStrings:      []string{"2001:db8::/32", "2001:0db8:0123:4567::/64"},
-			expectCorrects:   []string{"2001:db8::/32", "2001:0db8:0123:4567::/64"},
-			expectIncorrects: nil,
-		},
-		{
-			desc:             "mixed versions in ipv6 mode",
-			isIPv6:           true,
-			cidrStrings:      []string{"0.0.0.0/1", "1.0.0.0/1", "2001:db8::/32", "2001:0db8:0123:4567::/64"},
-			expectCorrects:   []string{"2001:db8::/32", "2001:0db8:0123:4567::/64"},
-			expectIncorrects: []string{"0.0.0.0/1", "1.0.0.0/1"},
-		},
-	}
-
-	for _, tc := range testCases {
-		corrects, incorrects := FilterIncorrectCIDRVersion(tc.cidrStrings, tc.isIPv6)
-		if !reflect.DeepEqual(tc.expectCorrects, corrects) {
-			t.Errorf("%v: want corrects=%v, got %v", tc.desc, tc.expectCorrects, corrects)
-		}
-		if !reflect.DeepEqual(tc.expectIncorrects, incorrects) {
-			t.Errorf("%v: want incorrects=%v, got %v", tc.desc, tc.expectIncorrects, incorrects)
-		}
-	}
-}

pkg/util/net/sets/doc.go

@@ -1,28 +0,0 @@
-/*
-Copyright 2016 The Kubernetes Authors.
-
-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.
-*/
-
-// This package contains hand-coded set implementations that should be similar
-// to the autogenerated ones in pkg/util/sets.
-// We can't simply use net.IPNet as a map-key in Go (because it contains a
-// []byte).
-// We could use the same workaround we use here (a string representation as the
-// key) to autogenerate sets.  If we do that, or decide on an alternate
-// approach, we should replace the implementations in this package with the
-// autogenerated versions.
-// It is expected that callers will alias this import as "netsets" i.e. import
-// netsets "k8s.io/kubernetes/pkg/util/net/sets"
-
-package sets

pkg/util/net/sets/ipnet_test.go

@@ -1,155 +0,0 @@
-/*
-Copyright 2014 The Kubernetes Authors.
-
-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 sets
-
-import (
-	"net"
-	"reflect"
-	"sort"
-	"testing"
-)
-
-func parseIPNet(s string) *net.IPNet {
-	_, net, err := net.ParseCIDR(s)
-	if err != nil {
-		panic(err)
-	}
-	return net
-}
-
-func TestIPNets(t *testing.T) {
-	s := IPNet{}
-	s2 := IPNet{}
-	if len(s) != 0 {
-		t.Errorf("Expected len=0: %d", len(s))
-	}
-	a := parseIPNet("1.0.0.0/8")
-	b := parseIPNet("2.0.0.0/8")
-	c := parseIPNet("3.0.0.0/8")
-	d := parseIPNet("4.0.0.0/8")
-
-	s.Insert(a, b)
-	if len(s) != 2 {
-		t.Errorf("Expected len=2: %d", len(s))
-	}
-	s.Insert(c)
-	if s.Has(d) {
-		t.Errorf("Unexpected contents: %#v", s)
-	}
-	if !s.Has(a) {
-		t.Errorf("Missing contents: %#v", s)
-	}
-	s.Delete(a)
-	if s.Has(a) {
-		t.Errorf("Unexpected contents: %#v", s)
-	}
-	s.Insert(a)
-	if s.HasAll(a, b, d) {
-		t.Errorf("Unexpected contents: %#v", s)
-	}
-	if !s.HasAll(a, b) {
-		t.Errorf("Missing contents: %#v", s)
-	}
-	s2.Insert(a, b, d)
-	if s.IsSuperset(s2) {
-		t.Errorf("Unexpected contents: %#v", s)
-	}
-	s2.Delete(d)
-	if !s.IsSuperset(s2) {
-		t.Errorf("Missing contents: %#v", s)
-	}
-}
-
-func TestIPNetSetDeleteMultiples(t *testing.T) {
-	s := IPNet{}
-	a := parseIPNet("1.0.0.0/8")
-	b := parseIPNet("2.0.0.0/8")
-	c := parseIPNet("3.0.0.0/8")
-
-	s.Insert(a, b, c)
-	if len(s) != 3 {
-		t.Errorf("Expected len=3: %d", len(s))
-	}
-
-	s.Delete(a, c)
-	if len(s) != 1 {
-		t.Errorf("Expected len=1: %d", len(s))
-	}
-	if s.Has(a) {
-		t.Errorf("Unexpected contents: %#v", s)
-	}
-	if s.Has(c) {
-		t.Errorf("Unexpected contents: %#v", s)
-	}
-	if !s.Has(b) {
-		t.Errorf("Missing contents: %#v", s)
-	}
-}
-
-func TestNewIPSet(t *testing.T) {
-	s, err := ParseIPNets("1.0.0.0/8", "2.0.0.0/8", "3.0.0.0/8")
-	if err != nil {
-		t.Errorf("error parsing IPNets: %v", err)
-	}
-	if len(s) != 3 {
-		t.Errorf("Expected len=3: %d", len(s))
-	}
-	a := parseIPNet("1.0.0.0/8")
-	b := parseIPNet("2.0.0.0/8")
-	c := parseIPNet("3.0.0.0/8")
-
-	if !s.Has(a) || !s.Has(b) || !s.Has(c) {
-		t.Errorf("Unexpected contents: %#v", s)
-	}
-}
-
-func TestIPNetSetDifference(t *testing.T) {
-	l, err := ParseIPNets("1.0.0.0/8", "2.0.0.0/8", "3.0.0.0/8")
-	if err != nil {
-		t.Errorf("error parsing IPNets: %v", err)
-	}
-	r, err := ParseIPNets("1.0.0.0/8", "2.0.0.0/8", "4.0.0.0/8", "5.0.0.0/8")
-	if err != nil {
-		t.Errorf("error parsing IPNets: %v", err)
-	}
-	c := l.Difference(r)
-	d := r.Difference(l)
-	if len(c) != 1 {
-		t.Errorf("Expected len=1: %d", len(c))
-	}
-	if !c.Has(parseIPNet("3.0.0.0/8")) {
-		t.Errorf("Unexpected contents: %#v", c)
-	}
-	if len(d) != 2 {
-		t.Errorf("Expected len=2: %d", len(d))
-	}
-	if !d.Has(parseIPNet("4.0.0.0/8")) || !d.Has(parseIPNet("5.0.0.0/8")) {
-		t.Errorf("Unexpected contents: %#v", d)
-	}
-}
-
-func TestIPNetSetList(t *testing.T) {
-	s, err := ParseIPNets("3.0.0.0/8", "1.0.0.0/8", "2.0.0.0/8")
-	if err != nil {
-		t.Errorf("error parsing IPNets: %v", err)
-	}
-	l := s.StringSlice()
-	sort.Strings(l)
-	if !reflect.DeepEqual(l, []string{"1.0.0.0/8", "2.0.0.0/8", "3.0.0.0/8"}) {
-		t.Errorf("List gave unexpected result: %#v", l)
-	}
-}

test/test_owners.csv

@@ -795,7 +795,6 @@ k8s.io/kubernetes/pkg/util/iptables,rrati,0,
 k8s.io/kubernetes/pkg/util/labels,rmmh,1,
 k8s.io/kubernetes/pkg/util/limitwriter,deads2k,1,
 k8s.io/kubernetes/pkg/util/mount,xiang90,1,
-k8s.io/kubernetes/pkg/util/net/sets,rrati,0,
 k8s.io/kubernetes/pkg/util/node,liggitt,0,
 k8s.io/kubernetes/pkg/util/oom,vishh,0,
 k8s.io/kubernetes/pkg/util/parsers,derekwaynecarr,1,

vendor/BUILD

@@ -473,6 +473,7 @@ filegroup(
         "//vendor/k8s.io/utils/integer:all-srcs",
         "//vendor/k8s.io/utils/io:all-srcs",
         "//vendor/k8s.io/utils/keymutex:all-srcs",
+        "//vendor/k8s.io/utils/net:all-srcs",
         "//vendor/k8s.io/utils/nsenter:all-srcs",
         "//vendor/k8s.io/utils/path:all-srcs",
         "//vendor/k8s.io/utils/pointer:all-srcs",

vendor/k8s.io/utils/net/BUILD

@@ -1,24 +1,14 @@
-package(default_visibility = ["//visibility:public"])
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
-
-load(
-    "@io_bazel_rules_go//go:def.bzl",
-    "go_library",
-    "go_test",
-)
 
 go_library(
     name = "go_default_library",
     srcs = [
-        "doc.go",
         "ipnet.go",
+        "net.go",
     ],
-    importpath = "k8s.io/kubernetes/pkg/util/net/sets",
+    importmap = "k8s.io/kubernetes/vendor/k8s.io/utils/net",
-)
+    importpath = "k8s.io/utils/net",
-
+    visibility = ["//visibility:public"],
-go_test(
-    name = "go_default_test",
-    srcs = ["ipnet_test.go"],
-    embed = [":go_default_library"],
 )
 
 filegroup(
@@ -32,4 +22,5 @@ filegroup(
     name = "all-srcs",
     srcs = [":package-srcs"],
     tags = ["automanaged"],
+    visibility = ["//visibility:public"],
 )

vendor/k8s.io/utils/net/ipnet.go

@@ -14,19 +14,19 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-package sets
+package net
 
 import (
 	"net"
 	"strings"
 )
 
-// IPNet maps string to net.IPNet.
+// IPNetSet maps string to net.IPNet.
-type IPNet map[string]*net.IPNet
+type IPNetSet map[string]*net.IPNet
 
-// ParseIPNets parses string slice to IPNet.
+// ParseIPNets parses string slice to IPNetSet.
-func ParseIPNets(specs ...string) (IPNet, error) {
+func ParseIPNets(specs ...string) (IPNetSet, error) {
-	ipnetset := make(IPNet)
+	ipnetset := make(IPNetSet)
 	for _, spec := range specs {
 		spec = strings.TrimSpace(spec)
 		_, ipnet, err := net.ParseCIDR(spec)
@@ -40,27 +40,27 @@ func ParseIPNets(specs ...string) (IPNet, error) {
 }
 
 // Insert adds items to the set.
-func (s IPNet) Insert(items ...*net.IPNet) {
+func (s IPNetSet) Insert(items ...*net.IPNet) {
 	for _, item := range items {
 		s[item.String()] = item
 	}
 }
 
 // Delete removes all items from the set.
-func (s IPNet) Delete(items ...*net.IPNet) {
+func (s IPNetSet) Delete(items ...*net.IPNet) {
 	for _, item := range items {
 		delete(s, item.String())
 	}
 }
 
 // Has returns true if and only if item is contained in the set.
-func (s IPNet) Has(item *net.IPNet) bool {
+func (s IPNetSet) Has(item *net.IPNet) bool {
 	_, contained := s[item.String()]
 	return contained
 }
 
 // HasAll returns true if and only if all items are contained in the set.
-func (s IPNet) HasAll(items ...*net.IPNet) bool {
+func (s IPNetSet) HasAll(items ...*net.IPNet) bool {
 	for _, item := range items {
 		if !s.Has(item) {
 			return false
@@ -75,8 +75,8 @@ func (s IPNet) HasAll(items ...*net.IPNet) bool {
 // s2 = {a1, a2, a4, a5}
 // s1.Difference(s2) = {a3}
 // s2.Difference(s1) = {a4, a5}
-func (s IPNet) Difference(s2 IPNet) IPNet {
+func (s IPNetSet) Difference(s2 IPNetSet) IPNetSet {
-	result := make(IPNet)
+	result := make(IPNetSet)
 	for k, i := range s {
 		_, found := s2[k]
 		if found {
@@ -89,7 +89,7 @@ func (s IPNet) Difference(s2 IPNet) IPNet {
 
 // StringSlice returns a []string with the String representation of each element in the set.
 // Order is undefined.
-func (s IPNet) StringSlice() []string {
+func (s IPNetSet) StringSlice() []string {
 	a := make([]string, 0, len(s))
 	for k := range s {
 		a = append(a, k)
@@ -98,7 +98,7 @@ func (s IPNet) StringSlice() []string {
 }
 
 // IsSuperset returns true if and only if s1 is a superset of s2.
-func (s IPNet) IsSuperset(s2 IPNet) bool {
+func (s IPNetSet) IsSuperset(s2 IPNetSet) bool {
 	for k := range s2 {
 		_, found := s[k]
 		if !found {
@@ -111,11 +111,11 @@ func (s IPNet) IsSuperset(s2 IPNet) bool {
 // Equal returns true if and only if s1 is equal (as a set) to s2.
 // Two sets are equal if their membership is identical.
 // (In practice, this means same elements, order doesn't matter)
-func (s IPNet) Equal(s2 IPNet) bool {
+func (s IPNetSet) Equal(s2 IPNetSet) bool {
 	return len(s) == len(s2) && s.IsSuperset(s2)
 }
 
 // Len returns the size of the set.
-func (s IPNet) Len() int {
+func (s IPNetSet) Len() int {
 	return len(s)
 }

vendor/k8s.io/utils/net/net.go

@@ -0,0 +1,37 @@
+/*
+Copyright 2018 The Kubernetes Authors.
+
+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 net
+
+import "net"
+
+// IsIPv6 returns if netIP is IPv6.
+func IsIPv6(netIP net.IP) bool {
+	return netIP != nil && netIP.To4() == nil
+}
+
+// IsIPv6String returns if ip is IPv6.
+func IsIPv6String(ip string) bool {
+	netIP := net.ParseIP(ip)
+	return IsIPv6(netIP)
+}
+
+// IsIPv6CIDRString returns if cidr is IPv6.
+// This assumes cidr is a valid CIDR.
+func IsIPv6CIDRString(cidr string) bool {
+	ip, _, _ := net.ParseCIDR(cidr)
+	return IsIPv6(ip)
+}