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				synced 2025-11-03 19:58:17 +00:00 
			
		
		
		
	This had to be able to build on OS X before to make verify-typecheck pass, but now that that's fixed we can tag the code properly as being linux-only.
		
			
				
	
	
		
			249 lines
		
	
	
		
			7.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			249 lines
		
	
	
		
			7.5 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
//go:build linux
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// +build linux
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/*
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Copyright 2017 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 ipvs
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import (
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	"testing"
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	utilipset "k8s.io/kubernetes/pkg/proxy/ipvs/ipset"
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	fakeipset "k8s.io/kubernetes/pkg/proxy/ipvs/ipset/testing"
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)
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func TestCheckIPSetVersion(t *testing.T) {
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	testCases := []struct {
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		name    string
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		vstring string
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		valid   bool
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	}{
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		{"4.0 < 6.0 is invalid", "4.0", false},
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		{"5.1 < 6.0 is invalid", "5.1", false},
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		{"5.2 < 6.0 is invalid", "5.1.2", false},
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		{"7 is not a valid version", "7", false},
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		{"6.0 is valid since >= 6.0", "6.0", true},
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		{"6.1 is valid since >= 6.0", "6.1", true},
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		{"6.19 is valid since >= 6.0", "6.19", true},
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		{"7.0 is valid since >= 6.0", "7.0", true},
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		{"8.1.2 is valid since >= 6.0", "8.1.2", true},
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		{"9.3.4.0 is valid since >= 6.0", "9.3.4.0", true},
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		{"not a valid semantic version", "total junk", false},
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	}
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	for _, testCase := range testCases {
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		t.Run(testCase.name, func(t *testing.T) {
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			valid := checkMinVersion(testCase.vstring)
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			if testCase.valid != valid {
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				t.Errorf("Expected result: %v, Got result: %v", testCase.valid, valid)
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			}
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		})
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	}
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}
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const testIPSetVersion = "v6.19"
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func TestSyncIPSetEntries(t *testing.T) {
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	testCases := []struct {
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		name            string
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		set             *utilipset.IPSet
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		setType         utilipset.Type
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		ipv6            bool
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		activeEntries   []string
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		currentEntries  []string
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		expectedEntries []string
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	}{
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		{
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			name: "normal ipset sync",
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			set: &utilipset.IPSet{
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				Name: "foo",
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			},
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			setType:         utilipset.HashIPPort,
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			ipv6:            false,
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			activeEntries:   []string{"172.17.0.4,tcp:80"},
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			currentEntries:  nil,
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			expectedEntries: []string{"172.17.0.4,tcp:80"},
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		},
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		{
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			name: "ipset IPv6 sync with no new entries",
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			set: &utilipset.IPSet{
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				Name: "abz",
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			},
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			setType:         utilipset.HashIPPort,
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			ipv6:            true,
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			activeEntries:   []string{"FE80::0202:B3FF:FE1E:8329,tcp:80"},
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			currentEntries:  []string{"FE80::0202:B3FF:FE1E:8329,tcp:80"},
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			expectedEntries: []string{"FE80::0202:B3FF:FE1E:8329,tcp:80"},
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		},
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		{
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			name: "ipset sync with updated udp->tcp in hash",
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			set: &utilipset.IPSet{
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				Name: "bca",
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			},
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			setType:         utilipset.HashIPPort,
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			ipv6:            false,
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			activeEntries:   []string{"172.17.0.4,tcp:80", "172.17.0.5,tcp:80"},
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			currentEntries:  []string{"172.17.0.5,udp:53"},
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			expectedEntries: []string{"172.17.0.4,tcp:80", "172.17.0.5,tcp:80"},
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		},
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		{
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			name: "ipset sync no updates required",
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			set: &utilipset.IPSet{
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				Name: "bar",
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			},
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			setType:         utilipset.HashIPPortIP,
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			ipv6:            false,
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			activeEntries:   []string{"172.17.0.4,tcp:80:172.17.0.4"},
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			currentEntries:  []string{"172.17.0.4,tcp:80:172.17.0.4"},
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			expectedEntries: []string{"172.17.0.4,tcp:80:172.17.0.4"},
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		},
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		{
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			name: "ipset IPv6 sync, delete and add new entry",
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			set: &utilipset.IPSet{
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				Name: "baz",
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			},
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			setType:         utilipset.HashIPPortIP,
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			ipv6:            true,
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			activeEntries:   []string{"FE80:0000:0000:0000:0202:B3FF:FE1E:8329,tcp:8080:FE80:0000:0000:0000:0202:B3FF:FE1E:8329"},
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			currentEntries:  []string{"1111:0000:0000:0000:0202:B3FF:FE1E:8329,tcp:8081:1111:0000:0000:0000:0202:B3FF:FE1E:8329:8081"},
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			expectedEntries: []string{"FE80:0000:0000:0000:0202:B3FF:FE1E:8329,tcp:8080:FE80:0000:0000:0000:0202:B3FF:FE1E:8329"},
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		},
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		{
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			name: "ipset sync, no current entries",
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			set: &utilipset.IPSet{
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				Name: "NOPE",
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			},
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			setType:         utilipset.HashIPPortIP,
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			ipv6:            false,
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			activeEntries:   []string{"172.17.0.4,tcp:80,172.17.0.9", "172.17.0.5,tcp:80,172.17.0.10"},
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			currentEntries:  nil,
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			expectedEntries: []string{"172.17.0.4,tcp:80,172.17.0.9", "172.17.0.5,tcp:80,172.17.0.10"},
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		},
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		{
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			name: "ipset sync, no current entries with /16 subnet",
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			set: &utilipset.IPSet{
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				Name: "ABC-DEF",
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			},
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			setType:         utilipset.HashIPPortNet,
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			ipv6:            false,
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			activeEntries:   []string{"172.17.0.4,tcp:80,172.17.0.0/16", "172.17.0.5,tcp:80,172.17.0.0/16"},
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			currentEntries:  nil,
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			expectedEntries: []string{"172.17.0.4,tcp:80,172.17.0.0/16", "172.17.0.5,tcp:80,172.17.0.0/16"},
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		},
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		{
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			name: "ipset IPv6 sync, no updates required with /32 subnet",
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			set: &utilipset.IPSet{
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				Name: "zar",
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			},
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			setType:         utilipset.HashIPPortNet,
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			ipv6:            true,
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			activeEntries:   []string{"FE80::8329,tcp:8800,2001:db8::/32"},
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			currentEntries:  []string{"FE80::8329,tcp:8800,2001:db8::/32"},
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			expectedEntries: []string{"FE80::8329,tcp:8800,2001:db8::/32"},
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		},
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		{
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			name: "ipset IPv6 sync, current entries removed",
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			set: &utilipset.IPSet{
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				Name: "bbb",
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			},
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			setType:         utilipset.HashIPPortNet,
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			ipv6:            true,
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			activeEntries:   nil,
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			currentEntries:  []string{"FE80::8329,udp:8801,2001:db8::/32"},
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			expectedEntries: nil,
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		},
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		{
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			name: "ipset sync, port entry removed",
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			set: &utilipset.IPSet{
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				Name: "AAA",
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			},
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			setType:         utilipset.BitmapPort,
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			activeEntries:   nil,
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			currentEntries:  []string{"80"},
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			expectedEntries: nil,
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		},
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		{
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			name: "ipset sync, remove old and add new",
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			set: &utilipset.IPSet{
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				Name: "c-c-c",
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			},
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			setType:         utilipset.BitmapPort,
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			activeEntries:   []string{"8080", "9090"},
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			currentEntries:  []string{"80"},
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			expectedEntries: []string{"8080", "9090"},
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		},
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		{
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			name: "ipset sync, remove many stale ports",
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			set: &utilipset.IPSet{
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				Name: "NODE-PORT",
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			},
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			setType:         utilipset.BitmapPort,
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			activeEntries:   []string{"8080"},
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			currentEntries:  []string{"80", "9090", "8081", "8082"},
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			expectedEntries: []string{"8080"},
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		},
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		{
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			name: "ipset sync, add sctp entry",
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			set: &utilipset.IPSet{
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				Name: "sctp-1",
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			},
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			setType:         utilipset.HashIPPort,
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			ipv6:            false,
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			activeEntries:   []string{"172.17.0.4,sctp:80"},
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			currentEntries:  nil,
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			expectedEntries: []string{"172.17.0.4,sctp:80"},
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		},
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		{
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			name: "ipset sync, add IPV6 sctp entry",
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			set: &utilipset.IPSet{
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				Name: "sctp-2",
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			},
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			setType:         utilipset.HashIPPort,
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			ipv6:            true,
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			activeEntries:   []string{"FE80::0202:B3FF:FE1E:8329,sctp:80"},
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			currentEntries:  []string{"FE80::0202:B3FF:FE1E:8329,sctp:80"},
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			expectedEntries: []string{"FE80::0202:B3FF:FE1E:8329,sctp:80"},
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		},
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	}
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	for _, testCase := range testCases {
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		t.Run(testCase.name, func(t *testing.T) {
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			set := NewIPSet(fakeipset.NewFake(testIPSetVersion), testCase.set.Name, testCase.setType, testCase.ipv6, "comment-"+testCase.set.Name)
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			if err := set.handle.CreateSet(&set.IPSet, true); err != nil {
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				t.Errorf("Unexpected error: %v", err)
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			}
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			for _, entry := range testCase.currentEntries {
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				set.handle.AddEntry(entry, testCase.set, true)
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			}
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			set.activeEntries.Insert(testCase.activeEntries...)
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			set.syncIPSetEntries()
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			for _, entry := range testCase.expectedEntries {
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				found, err := set.handle.TestEntry(entry, testCase.set.Name)
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				if err != nil {
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					t.Errorf("Unexpected error: %v", err)
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				}
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				if !found {
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					t.Errorf("Unexpected entry %q not found in set foo", entry)
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				}
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			}
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		})
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	}
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}
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