05dd1ba540
The tests are packaged together with other tests in a common coverage suite, so need to be individually annotated so that they are skipped before S. They do not need to pass on platforms older than S, because such platforms will not updated with the code that is tested. Bug: 187935317 Test: atest ConnectivityCoverageTests on R Change-Id: I10da45ae023e7f1e8cd11ec857b84346892a3fa8
317 lines
12 KiB
Java
317 lines
12 KiB
Java
/*
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* Copyright 2017 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;
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import static org.junit.Assert.assertArrayEquals;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertFalse;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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import android.os.Build;
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import androidx.test.filters.SdkSuppress;
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import androidx.test.filters.SmallTest;
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import androidx.test.runner.AndroidJUnit4;
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import com.android.net.module.util.MacAddressUtils;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import java.net.Inet6Address;
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import java.util.Arrays;
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import java.util.Random;
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@SmallTest
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@RunWith(AndroidJUnit4.class)
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@SdkSuppress(minSdkVersion = Build.VERSION_CODES.S, codeName = "S")
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public class MacAddressTest {
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static class AddrTypeTestCase {
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byte[] addr;
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int expectedType;
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static AddrTypeTestCase of(int expectedType, int... addr) {
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AddrTypeTestCase t = new AddrTypeTestCase();
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t.expectedType = expectedType;
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t.addr = toByteArray(addr);
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return t;
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}
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}
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@Test
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public void testMacAddrTypes() {
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AddrTypeTestCase[] testcases = {
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AddrTypeTestCase.of(MacAddress.TYPE_UNKNOWN),
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AddrTypeTestCase.of(MacAddress.TYPE_UNKNOWN, 0),
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AddrTypeTestCase.of(MacAddress.TYPE_UNKNOWN, 1, 2, 3, 4, 5),
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AddrTypeTestCase.of(MacAddress.TYPE_UNKNOWN, 1, 2, 3, 4, 5, 6, 7),
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AddrTypeTestCase.of(MacAddress.TYPE_UNICAST, 0xa0, 0xb0, 0xc0, 0xd0, 0xe0, 0xf0),
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AddrTypeTestCase.of(MacAddress.TYPE_BROADCAST, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff),
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AddrTypeTestCase.of(MacAddress.TYPE_MULTICAST, 1, 2, 3, 4, 5, 6),
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AddrTypeTestCase.of(MacAddress.TYPE_MULTICAST, 11, 22, 33, 44, 55, 66),
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AddrTypeTestCase.of(MacAddress.TYPE_MULTICAST, 33, 33, 0xaa, 0xbb, 0xcc, 0xdd)
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};
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for (AddrTypeTestCase t : testcases) {
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int got = MacAddress.macAddressType(t.addr);
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String msg = String.format("expected type of %s to be %s, but got %s",
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Arrays.toString(t.addr), t.expectedType, got);
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assertEquals(msg, t.expectedType, got);
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if (got != MacAddress.TYPE_UNKNOWN) {
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assertEquals(got, MacAddress.fromBytes(t.addr).getAddressType());
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}
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}
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}
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@Test
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public void testToOuiString() {
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String[][] macs = {
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{"07:00:d3:56:8a:c4", "07:00:d3"},
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{"33:33:aa:bb:cc:dd", "33:33:aa"},
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{"06:00:00:00:00:00", "06:00:00"},
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{"07:00:d3:56:8a:c4", "07:00:d3"}
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};
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for (String[] pair : macs) {
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String mac = pair[0];
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String expected = pair[1];
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assertEquals(expected, MacAddress.fromString(mac).toOuiString());
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}
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}
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@Test
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public void testHexPaddingWhenPrinting() {
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String[] macs = {
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"07:00:d3:56:8a:c4",
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"33:33:aa:bb:cc:dd",
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"06:00:00:00:00:00",
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"07:00:d3:56:8a:c4"
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};
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for (String mac : macs) {
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assertEquals(mac, MacAddress.fromString(mac).toString());
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assertEquals(mac,
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MacAddress.stringAddrFromByteAddr(MacAddress.byteAddrFromStringAddr(mac)));
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}
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}
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@Test
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public void testIsMulticastAddress() {
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MacAddress[] multicastAddresses = {
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MacAddress.BROADCAST_ADDRESS,
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MacAddress.fromString("07:00:d3:56:8a:c4"),
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MacAddress.fromString("33:33:aa:bb:cc:dd"),
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};
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MacAddress[] unicastAddresses = {
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MacAddress.ALL_ZEROS_ADDRESS,
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MacAddress.fromString("00:01:44:55:66:77"),
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MacAddress.fromString("08:00:22:33:44:55"),
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MacAddress.fromString("06:00:00:00:00:00"),
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};
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for (MacAddress mac : multicastAddresses) {
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String msg = mac.toString() + " expected to be a multicast address";
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assertTrue(msg, MacAddressUtils.isMulticastAddress(mac));
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}
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for (MacAddress mac : unicastAddresses) {
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String msg = mac.toString() + " expected not to be a multicast address";
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assertFalse(msg, MacAddressUtils.isMulticastAddress(mac));
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}
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}
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@Test
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public void testIsLocallyAssignedAddress() {
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MacAddress[] localAddresses = {
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MacAddress.fromString("06:00:00:00:00:00"),
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MacAddress.fromString("07:00:d3:56:8a:c4"),
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MacAddress.fromString("33:33:aa:bb:cc:dd"),
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};
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MacAddress[] universalAddresses = {
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MacAddress.fromString("00:01:44:55:66:77"),
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MacAddress.fromString("08:00:22:33:44:55"),
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};
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for (MacAddress mac : localAddresses) {
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String msg = mac.toString() + " expected to be a locally assigned address";
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assertTrue(msg, mac.isLocallyAssigned());
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}
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for (MacAddress mac : universalAddresses) {
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String msg = mac.toString() + " expected not to be globally unique address";
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assertFalse(msg, mac.isLocallyAssigned());
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}
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}
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@Test
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public void testMacAddressConversions() {
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final int iterations = 10000;
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for (int i = 0; i < iterations; i++) {
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MacAddress mac = MacAddressUtils.createRandomUnicastAddress();
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String stringRepr = mac.toString();
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byte[] bytesRepr = mac.toByteArray();
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assertEquals(mac, MacAddress.fromString(stringRepr));
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assertEquals(mac, MacAddress.fromBytes(bytesRepr));
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assertEquals(mac, MacAddress.fromString(MacAddress.stringAddrFromByteAddr(bytesRepr)));
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assertEquals(mac, MacAddress.fromBytes(MacAddress.byteAddrFromStringAddr(stringRepr)));
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}
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}
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@Test
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public void testMacAddressRandomGeneration() {
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final int iterations = 1000;
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final String expectedAndroidOui = "da:a1:19";
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for (int i = 0; i < iterations; i++) {
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MacAddress mac = MacAddress.createRandomUnicastAddressWithGoogleBase();
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String stringRepr = mac.toString();
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assertTrue(stringRepr + " expected to be a locally assigned address",
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mac.isLocallyAssigned());
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assertTrue(stringRepr + " expected to begin with " + expectedAndroidOui,
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stringRepr.startsWith(expectedAndroidOui));
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}
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final Random r = new Random();
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final String anotherOui = "24:5f:78";
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final String expectedLocalOui = "26:5f:78";
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final MacAddress base = MacAddress.fromString(anotherOui + ":0:0:0");
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for (int i = 0; i < iterations; i++) {
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MacAddress mac = MacAddressUtils.createRandomUnicastAddress(base, r);
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String stringRepr = mac.toString();
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assertTrue(stringRepr + " expected to be a locally assigned address",
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mac.isLocallyAssigned());
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assertEquals(MacAddress.TYPE_UNICAST, mac.getAddressType());
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assertTrue(stringRepr + " expected to begin with " + expectedLocalOui,
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stringRepr.startsWith(expectedLocalOui));
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}
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for (int i = 0; i < iterations; i++) {
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MacAddress mac = MacAddressUtils.createRandomUnicastAddress();
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String stringRepr = mac.toString();
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assertTrue(stringRepr + " expected to be a locally assigned address",
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mac.isLocallyAssigned());
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assertEquals(MacAddress.TYPE_UNICAST, mac.getAddressType());
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}
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}
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@Test
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public void testConstructorInputValidation() {
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String[] invalidStringAddresses = {
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"",
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"abcd",
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"1:2:3:4:5",
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"1:2:3:4:5:6:7",
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"10000:2:3:4:5:6",
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};
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for (String s : invalidStringAddresses) {
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try {
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MacAddress mac = MacAddress.fromString(s);
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fail("MacAddress.fromString(" + s + ") should have failed, but returned " + mac);
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} catch (IllegalArgumentException excepted) {
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}
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}
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try {
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MacAddress mac = MacAddress.fromString(null);
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fail("MacAddress.fromString(null) should have failed, but returned " + mac);
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} catch (NullPointerException excepted) {
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}
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byte[][] invalidBytesAddresses = {
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{},
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{1,2,3,4,5},
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{1,2,3,4,5,6,7},
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};
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for (byte[] b : invalidBytesAddresses) {
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try {
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MacAddress mac = MacAddress.fromBytes(b);
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fail("MacAddress.fromBytes(" + Arrays.toString(b)
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+ ") should have failed, but returned " + mac);
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} catch (IllegalArgumentException excepted) {
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}
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}
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try {
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MacAddress mac = MacAddress.fromBytes(null);
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fail("MacAddress.fromBytes(null) should have failed, but returned " + mac);
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} catch (NullPointerException excepted) {
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}
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}
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@Test
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public void testMatches() {
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// match 4 bytes prefix
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assertTrue(MacAddress.fromString("aa:bb:cc:dd:ee:11").matches(
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MacAddress.fromString("aa:bb:cc:dd:00:00"),
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MacAddress.fromString("ff:ff:ff:ff:00:00")));
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// match bytes 0,1,2 and 5
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assertTrue(MacAddress.fromString("aa:bb:cc:dd:ee:11").matches(
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MacAddress.fromString("aa:bb:cc:00:00:11"),
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MacAddress.fromString("ff:ff:ff:00:00:ff")));
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// match 34 bit prefix
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assertTrue(MacAddress.fromString("aa:bb:cc:dd:ee:11").matches(
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MacAddress.fromString("aa:bb:cc:dd:c0:00"),
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MacAddress.fromString("ff:ff:ff:ff:c0:00")));
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// fail to match 36 bit prefix
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assertFalse(MacAddress.fromString("aa:bb:cc:dd:ee:11").matches(
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MacAddress.fromString("aa:bb:cc:dd:40:00"),
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MacAddress.fromString("ff:ff:ff:ff:f0:00")));
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// match all 6 bytes
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assertTrue(MacAddress.fromString("aa:bb:cc:dd:ee:11").matches(
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MacAddress.fromString("aa:bb:cc:dd:ee:11"),
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MacAddress.fromString("ff:ff:ff:ff:ff:ff")));
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// match none of 6 bytes
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assertTrue(MacAddress.fromString("aa:bb:cc:dd:ee:11").matches(
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MacAddress.fromString("00:00:00:00:00:00"),
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MacAddress.fromString("00:00:00:00:00:00")));
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}
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/**
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* Tests that link-local address generation from MAC is valid.
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*/
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@Test
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public void testLinkLocalFromMacGeneration() {
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MacAddress mac = MacAddress.fromString("52:74:f2:b1:a8:7f");
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byte[] inet6ll = {(byte) 0xfe, (byte) 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x74,
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(byte) 0xf2, (byte) 0xff, (byte) 0xfe, (byte) 0xb1, (byte) 0xa8, 0x7f};
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Inet6Address llv6 = mac.getLinkLocalIpv6FromEui48Mac();
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assertTrue(llv6.isLinkLocalAddress());
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assertArrayEquals(inet6ll, llv6.getAddress());
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}
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static byte[] toByteArray(int... in) {
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byte[] out = new byte[in.length];
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for (int i = 0; i < in.length; i++) {
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out[i] = (byte) in[i];
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}
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return out;
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}
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}
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