221 lines
8.8 KiB
Java
221 lines
8.8 KiB
Java
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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 android.net.util;
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import static android.net.util.DnsUtils.IPV6_ADDR_SCOPE_GLOBAL;
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import static android.net.util.DnsUtils.IPV6_ADDR_SCOPE_LINKLOCAL;
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import static android.net.util.DnsUtils.IPV6_ADDR_SCOPE_SITELOCAL;
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import static org.junit.Assert.assertEquals;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.net.InetAddresses;
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import android.os.Build;
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import androidx.test.filters.SmallTest;
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import com.android.testutils.DevSdkIgnoreRule;
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import com.android.testutils.DevSdkIgnoreRunner;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import java.net.InetAddress;
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import java.util.Arrays;
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import java.util.Collections;
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import java.util.List;
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@RunWith(DevSdkIgnoreRunner.class)
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@SmallTest
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@DevSdkIgnoreRule.IgnoreUpTo(Build.VERSION_CODES.R)
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public class DnsUtilsTest {
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private InetAddress stringToAddress(@NonNull String addr) {
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return InetAddresses.parseNumericAddress(addr);
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}
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private DnsUtils.SortableAddress makeSortableAddress(@NonNull String addr) {
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return makeSortableAddress(addr, null);
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}
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private DnsUtils.SortableAddress makeSortableAddress(@NonNull String addr,
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@Nullable String srcAddr) {
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return new DnsUtils.SortableAddress(stringToAddress(addr),
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srcAddr != null ? stringToAddress(srcAddr) : null);
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}
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@Test
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public void testRfc6724Comparator() {
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final List<DnsUtils.SortableAddress> test = Arrays.asList(
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// Ipv4
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makeSortableAddress("216.58.200.36", "192.168.1.1"),
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// global with different scope src
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makeSortableAddress("2404:6800:4008:801::2004", "fe80::1111:2222"),
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// global without src addr
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makeSortableAddress("2404:6800:cafe:801::1"),
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// loop back
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makeSortableAddress("::1", "::1"),
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// link local
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makeSortableAddress("fe80::c46f:1cff:fe04:39b4", "fe80::1"),
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// teredo tunneling
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makeSortableAddress("2001::47c1", "2001::2"),
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// 6bone without src addr
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makeSortableAddress("3ffe::1234:5678"),
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// IPv4-compatible
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makeSortableAddress("::216.58.200.36", "::216.58.200.9"),
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// 6bone
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makeSortableAddress("3ffe::1234:5678", "3ffe::1234:1"),
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// IPv4-mapped IPv6
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makeSortableAddress("::ffff:192.168.95.7", "::ffff:192.168.95.1"));
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final List<InetAddress> expected = Arrays.asList(
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stringToAddress("::1"), // loop back
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stringToAddress("fe80::c46f:1cff:fe04:39b4"), // link local
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stringToAddress("216.58.200.36"), // Ipv4
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stringToAddress("::ffff:192.168.95.7"), // IPv4-mapped IPv6
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stringToAddress("2001::47c1"), // teredo tunneling
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stringToAddress("::216.58.200.36"), // IPv4-compatible
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stringToAddress("3ffe::1234:5678"), // 6bone
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stringToAddress("2404:6800:4008:801::2004"), // global with different scope src
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stringToAddress("2404:6800:cafe:801::1"), // global without src addr
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stringToAddress("3ffe::1234:5678")); // 6bone without src addr
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Collections.sort(test, new DnsUtils.Rfc6724Comparator());
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for (int i = 0; i < test.size(); ++i) {
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assertEquals(test.get(i).address, expected.get(i));
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}
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// TODO: add more combinations
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}
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@Test
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public void testV4SortableAddress() {
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// Test V4 address
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DnsUtils.SortableAddress test = makeSortableAddress("216.58.200.36");
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assertEquals(test.hasSrcAddr, 0);
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assertEquals(test.prefixMatchLen, 0);
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assertEquals(test.address, stringToAddress("216.58.200.36"));
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assertEquals(test.labelMatch, 0);
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assertEquals(test.scopeMatch, 0);
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assertEquals(test.scope, IPV6_ADDR_SCOPE_GLOBAL);
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assertEquals(test.label, 4);
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assertEquals(test.precedence, 35);
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// Test V4 loopback address with the same source address
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test = makeSortableAddress("127.1.2.3", "127.1.2.3");
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assertEquals(test.hasSrcAddr, 1);
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assertEquals(test.prefixMatchLen, 0);
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assertEquals(test.address, stringToAddress("127.1.2.3"));
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assertEquals(test.labelMatch, 1);
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assertEquals(test.scopeMatch, 1);
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assertEquals(test.scope, IPV6_ADDR_SCOPE_LINKLOCAL);
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assertEquals(test.label, 4);
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assertEquals(test.precedence, 35);
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}
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@Test
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public void testV6SortableAddress() {
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// Test global address
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DnsUtils.SortableAddress test = makeSortableAddress("2404:6800:4008:801::2004");
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assertEquals(test.address, stringToAddress("2404:6800:4008:801::2004"));
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assertEquals(test.scope, IPV6_ADDR_SCOPE_GLOBAL);
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assertEquals(test.label, 1);
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assertEquals(test.precedence, 40);
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// Test global address with global source address
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test = makeSortableAddress("2404:6800:4008:801::2004",
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"2401:fa00:fc:fd00:6d6c:7199:b8e7:41d6");
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assertEquals(test.address, stringToAddress("2404:6800:4008:801::2004"));
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assertEquals(test.hasSrcAddr, 1);
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assertEquals(test.scope, IPV6_ADDR_SCOPE_GLOBAL);
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assertEquals(test.labelMatch, 1);
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assertEquals(test.scopeMatch, 1);
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assertEquals(test.label, 1);
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assertEquals(test.precedence, 40);
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assertEquals(test.prefixMatchLen, 13);
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// Test global address with linklocal source address
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test = makeSortableAddress("2404:6800:4008:801::2004", "fe80::c46f:1cff:fe04:39b4");
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assertEquals(test.hasSrcAddr, 1);
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assertEquals(test.scope, IPV6_ADDR_SCOPE_GLOBAL);
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assertEquals(test.labelMatch, 1);
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assertEquals(test.scopeMatch, 0);
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assertEquals(test.label, 1);
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assertEquals(test.precedence, 40);
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assertEquals(test.prefixMatchLen, 0);
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// Test loopback address with the same source address
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test = makeSortableAddress("::1", "::1");
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assertEquals(test.hasSrcAddr, 1);
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assertEquals(test.prefixMatchLen, 16 * 8);
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assertEquals(test.labelMatch, 1);
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assertEquals(test.scopeMatch, 1);
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assertEquals(test.scope, IPV6_ADDR_SCOPE_LINKLOCAL);
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assertEquals(test.label, 0);
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assertEquals(test.precedence, 50);
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// Test linklocal address
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test = makeSortableAddress("fe80::c46f:1cff:fe04:39b4");
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assertEquals(test.scope, IPV6_ADDR_SCOPE_LINKLOCAL);
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assertEquals(test.label, 1);
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assertEquals(test.precedence, 40);
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// Test linklocal address
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test = makeSortableAddress("fe80::");
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assertEquals(test.scope, IPV6_ADDR_SCOPE_LINKLOCAL);
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assertEquals(test.label, 1);
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assertEquals(test.precedence, 40);
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// Test 6to4 address
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test = makeSortableAddress("2002:c000:0204::");
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assertEquals(test.scope, IPV6_ADDR_SCOPE_GLOBAL);
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assertEquals(test.label, 2);
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assertEquals(test.precedence, 30);
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// Test unique local address
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test = makeSortableAddress("fc00::c000:13ab");
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assertEquals(test.scope, IPV6_ADDR_SCOPE_GLOBAL);
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assertEquals(test.label, 13);
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assertEquals(test.precedence, 3);
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// Test teredo tunneling address
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test = makeSortableAddress("2001::47c1");
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assertEquals(test.scope, IPV6_ADDR_SCOPE_GLOBAL);
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assertEquals(test.label, 5);
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assertEquals(test.precedence, 5);
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// Test IPv4-compatible addresses
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test = makeSortableAddress("::216.58.200.36");
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assertEquals(test.scope, IPV6_ADDR_SCOPE_GLOBAL);
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assertEquals(test.label, 3);
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assertEquals(test.precedence, 1);
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// Test site-local address
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test = makeSortableAddress("fec0::cafe:3ab2");
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assertEquals(test.scope, IPV6_ADDR_SCOPE_SITELOCAL);
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assertEquals(test.label, 11);
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assertEquals(test.precedence, 1);
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// Test 6bone address
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test = makeSortableAddress("3ffe::1234:5678");
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assertEquals(test.scope, IPV6_ADDR_SCOPE_GLOBAL);
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assertEquals(test.label, 12);
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assertEquals(test.precedence, 1);
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}
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}
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