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8bc36966d4e7aeb1eca933326d5e314af4909ed5
android_packages_modules_Co…/tests/common/java/android/net/RouteInfoTest.java
Remi NGUYEN VAN 8bc36966d4 Do not verify field count in tests used in CTS 
Tests in tests/common and tests/cts are run as part of CtsNetTestCases.
Many used assertFieldCountEquals in parceling/unparceling tests to
ensure that unexpected fields were not added, or that they were not
missed when testing parceling/unparceling.

However with many of the classes updatable through module updates, the
field count may change in the future, breaking CTS tests.

Stop checking for the field count, as it would break on module releases,
and its value is lower than the maintenance cost.

Bug: 205901761
Test: atest CtsNetTestCases
Change-Id: I79854741f7e834574d4825bb737ef507785310fe
2022-01-18 16:55:32 +09:00

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/*
* Copyright (C) 2010 The Android Open Source Project
*
* 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 android.net;
import static android.net.RouteInfo.RTN_THROW;
import static android.net.RouteInfo.RTN_UNICAST;
import static android.net.RouteInfo.RTN_UNREACHABLE;
import static com.android.testutils.MiscAsserts.assertEqualBothWays;
import static com.android.testutils.MiscAsserts.assertNotEqualEitherWay;
import static com.android.testutils.ParcelUtils.assertParcelingIsLossless;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotEquals;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import static org.junit.Assert.fail;
import android.os.Build;
import androidx.core.os.BuildCompat;
import androidx.test.filters.SmallTest;
import androidx.test.runner.AndroidJUnit4;
import com.android.testutils.DevSdkIgnoreRule;
import com.android.testutils.DevSdkIgnoreRule.IgnoreUpTo;
import org.junit.Rule;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.net.Inet4Address;
import java.net.Inet6Address;
import java.net.InetAddress;
@RunWith(AndroidJUnit4.class)
@SmallTest
public class RouteInfoTest {
@Rule
public final DevSdkIgnoreRule ignoreRule = new DevSdkIgnoreRule();
private static final int INVALID_ROUTE_TYPE = -1;
private InetAddress Address(String addr) {
return InetAddresses.parseNumericAddress(addr);
}
private IpPrefix Prefix(String prefix) {
return new IpPrefix(prefix);
}
private static boolean isAtLeastR() {
// BuildCompat.isAtLeastR is documented to return false on release SDKs (including R)
return Build.VERSION.SDK_INT > Build.VERSION_CODES.Q || BuildCompat.isAtLeastR();
}
@Test
public void testConstructor() {
RouteInfo r;
// Invalid input.
try {
r = new RouteInfo((IpPrefix) null, null, "rmnet0");
fail("Expected RuntimeException: destination and gateway null");
} catch (RuntimeException e) { }
try {
r = new RouteInfo(Prefix("2001:db8:ace::/49"), Address("2001:db8::1"), "rmnet0",
INVALID_ROUTE_TYPE);
fail("Invalid route type should cause exception");
} catch (IllegalArgumentException e) { }
try {
r = new RouteInfo(Prefix("2001:db8:ace::/49"), Address("192.0.2.1"), "rmnet0",
RTN_UNREACHABLE);
fail("Address family mismatch should cause exception");
} catch (IllegalArgumentException e) { }
try {
r = new RouteInfo(Prefix("0.0.0.0/0"), Address("2001:db8::1"), "rmnet0",
RTN_UNREACHABLE);
fail("Address family mismatch should cause exception");
} catch (IllegalArgumentException e) { }
// Null destination is default route.
r = new RouteInfo((IpPrefix) null, Address("2001:db8::1"), null);
assertEquals(Prefix("::/0"), r.getDestination());
assertEquals(Address("2001:db8::1"), r.getGateway());
assertNull(r.getInterface());
r = new RouteInfo((IpPrefix) null, Address("192.0.2.1"), "wlan0");
assertEquals(Prefix("0.0.0.0/0"), r.getDestination());
assertEquals(Address("192.0.2.1"), r.getGateway());
assertEquals("wlan0", r.getInterface());
// Null gateway sets gateway to unspecified address (why?).
r = new RouteInfo(Prefix("2001:db8:beef:cafe::/48"), null, "lo");
assertEquals(Prefix("2001:db8:beef::/48"), r.getDestination());
assertEquals(Address("::"), r.getGateway());
assertEquals("lo", r.getInterface());
r = new RouteInfo(Prefix("192.0.2.5/24"), null);
assertEquals(Prefix("192.0.2.0/24"), r.getDestination());
assertEquals(Address("0.0.0.0"), r.getGateway());
assertNull(r.getInterface());
}
@Test
public void testMatches() {
class PatchedRouteInfo {
private final RouteInfo mRouteInfo;
public PatchedRouteInfo(IpPrefix destination, InetAddress gateway, String iface) {
mRouteInfo = new RouteInfo(destination, gateway, iface);
}
public boolean matches(InetAddress destination) {
return mRouteInfo.matches(destination);
}
}
PatchedRouteInfo r;
r = new PatchedRouteInfo(Prefix("2001:db8:f00::ace:d00d/127"), null, "rmnet0");
assertTrue(r.matches(Address("2001:db8:f00::ace:d00c")));
assertTrue(r.matches(Address("2001:db8:f00::ace:d00d")));
assertFalse(r.matches(Address("2001:db8:f00::ace:d00e")));
assertFalse(r.matches(Address("2001:db8:f00::bad:d00d")));
assertFalse(r.matches(Address("2001:4868:4860::8888")));
assertFalse(r.matches(Address("8.8.8.8")));
r = new PatchedRouteInfo(Prefix("192.0.2.0/23"), null, "wlan0");
assertTrue(r.matches(Address("192.0.2.43")));
assertTrue(r.matches(Address("192.0.3.21")));
assertFalse(r.matches(Address("192.0.0.21")));
assertFalse(r.matches(Address("8.8.8.8")));
PatchedRouteInfo ipv6Default = new PatchedRouteInfo(Prefix("::/0"), null, "rmnet0");
assertTrue(ipv6Default.matches(Address("2001:db8::f00")));
assertFalse(ipv6Default.matches(Address("192.0.2.1")));
PatchedRouteInfo ipv4Default = new PatchedRouteInfo(Prefix("0.0.0.0/0"), null, "rmnet0");
assertTrue(ipv4Default.matches(Address("255.255.255.255")));
assertTrue(ipv4Default.matches(Address("192.0.2.1")));
assertFalse(ipv4Default.matches(Address("2001:db8::f00")));
}
@Test
public void testEquals() {
// IPv4
RouteInfo r1 = new RouteInfo(Prefix("2001:db8:ace::/48"), Address("2001:db8::1"), "wlan0");
RouteInfo r2 = new RouteInfo(Prefix("2001:db8:ace::/48"), Address("2001:db8::1"), "wlan0");
assertEqualBothWays(r1, r2);
RouteInfo r3 = new RouteInfo(Prefix("2001:db8:ace::/49"), Address("2001:db8::1"), "wlan0");
RouteInfo r4 = new RouteInfo(Prefix("2001:db8:ace::/48"), Address("2001:db8::2"), "wlan0");
RouteInfo r5 = new RouteInfo(Prefix("2001:db8:ace::/48"), Address("2001:db8::1"), "rmnet0");
assertNotEqualEitherWay(r1, r3);
assertNotEqualEitherWay(r1, r4);
assertNotEqualEitherWay(r1, r5);
// IPv6
r1 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.1"), "wlan0");
r2 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.1"), "wlan0");
assertEqualBothWays(r1, r2);
r3 = new RouteInfo(Prefix("192.0.2.0/24"), Address("192.0.2.1"), "wlan0");
r4 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.2"), "wlan0");
r5 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.1"), "rmnet0");
assertNotEqualEitherWay(r1, r3);
assertNotEqualEitherWay(r1, r4);
assertNotEqualEitherWay(r1, r5);
// Interfaces (but not destinations or gateways) can be null.
r1 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.1"), null);
r2 = new RouteInfo(Prefix("192.0.2.0/25"), Address("192.0.2.1"), null);
r3 = new RouteInfo(Prefix("192.0.2.0/24"), Address("192.0.2.1"), "wlan0");
assertEqualBothWays(r1, r2);
assertNotEqualEitherWay(r1, r3);
}
@Test
public void testHostAndDefaultRoutes() {
RouteInfo r;
r = new RouteInfo(Prefix("0.0.0.0/0"), Address("0.0.0.0"), "wlan0");
assertFalse(r.isHostRoute());
assertTrue(r.isDefaultRoute());
assertTrue(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(Prefix("::/0"), Address("::"), "wlan0");
assertFalse(r.isHostRoute());
assertTrue(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertTrue(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(Prefix("192.0.2.0/24"), null, "wlan0");
assertFalse(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(Prefix("2001:db8::/48"), null, "wlan0");
assertFalse(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(Prefix("192.0.2.0/32"), Address("0.0.0.0"), "wlan0");
assertTrue(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(Prefix("2001:db8::/128"), Address("::"), "wlan0");
assertTrue(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(Prefix("192.0.2.0/32"), null, "wlan0");
assertTrue(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(Prefix("2001:db8::/128"), null, "wlan0");
assertTrue(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(Prefix("::/128"), Address("fe80::"), "wlan0");
assertTrue(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(Prefix("0.0.0.0/32"), Address("192.0.2.1"), "wlan0");
assertTrue(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(Prefix("0.0.0.0/32"), Address("192.0.2.1"), "wlan0");
assertTrue(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(new IpPrefix(Inet4Address.ANY, 0), RTN_UNREACHABLE);
assertFalse(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertTrue(r.isIPv4UnreachableDefault());
assertFalse(r.isIPv6UnreachableDefault());
}
r = new RouteInfo(new IpPrefix(Inet6Address.ANY, 0), RTN_UNREACHABLE);
assertFalse(r.isHostRoute());
assertFalse(r.isDefaultRoute());
assertFalse(r.isIPv4Default());
assertFalse(r.isIPv6Default());
if (isAtLeastR()) {
assertFalse(r.isIPv4UnreachableDefault());
assertTrue(r.isIPv6UnreachableDefault());
}
}
@Test
public void testRouteTypes() {
RouteInfo r = new RouteInfo(new IpPrefix(Inet6Address.ANY, 0), RTN_UNREACHABLE);
assertEquals(RTN_UNREACHABLE, r.getType());
r = new RouteInfo(new IpPrefix(Inet6Address.ANY, 0), RTN_UNICAST);
assertEquals(RTN_UNICAST, r.getType());
r = new RouteInfo(new IpPrefix(Inet6Address.ANY, 0), RTN_THROW);
assertEquals(RTN_THROW, r.getType());
}
@Test
public void testTruncation() {
LinkAddress l;
RouteInfo r;
l = new LinkAddress("192.0.2.5/30");
r = new RouteInfo(l, Address("192.0.2.1"), "wlan0");
assertEquals("192.0.2.4", r.getDestination().getAddress().getHostAddress());
l = new LinkAddress("2001:db8:1:f::5/63");
r = new RouteInfo(l, Address("2001:db8:5::1"), "wlan0");
assertEquals("2001:db8:1:e::", r.getDestination().getAddress().getHostAddress());
}
// Make sure that creating routes to multicast addresses doesn't throw an exception. Even though
// there's nothing we can do with them, we don't want to crash if, e.g., someone calls
// requestRouteToHostAddress("230.0.0.0", MOBILE_HIPRI);
@Test
public void testMulticastRoute() {
RouteInfo r;
r = new RouteInfo(Prefix("230.0.0.0/32"), Address("192.0.2.1"), "wlan0");
r = new RouteInfo(Prefix("ff02::1/128"), Address("2001:db8::1"), "wlan0");
// No exceptions? Good.
}
@Test
public void testParceling() {
RouteInfo r;
r = new RouteInfo(Prefix("192.0.2.0/24"), Address("192.0.2.1"), null);
assertParcelingIsLossless(r);
r = new RouteInfo(Prefix("192.0.2.0/24"), null, "wlan0");
assertParcelingIsLossless(r);
r = new RouteInfo(Prefix("192.0.2.0/24"), Address("192.0.2.1"), "wlan0", RTN_UNREACHABLE);
assertParcelingIsLossless(r);
}
@Test @IgnoreUpTo(Build.VERSION_CODES.Q)
public void testMtuParceling() {
final RouteInfo r = new RouteInfo(Prefix("ff02::1/128"), Address("2001:db8::"), "testiface",
RTN_UNREACHABLE, 1450 /* mtu */);
assertParcelingIsLossless(r);
}
@Test @IgnoreUpTo(Build.VERSION_CODES.Q)
public void testMtu() {
RouteInfo r;
r = new RouteInfo(Prefix("0.0.0.0/0"), Address("0.0.0.0"), "wlan0",
RouteInfo.RTN_UNICAST, 1500);
assertEquals(1500, r.getMtu());
r = new RouteInfo(Prefix("0.0.0.0/0"), Address("0.0.0.0"), "wlan0");
assertEquals(0, r.getMtu());
}
@Test @IgnoreUpTo(Build.VERSION_CODES.Q)
public void testRouteKey() {
RouteInfo.RouteKey k1, k2;
// Only prefix, null gateway and null interface
k1 = new RouteInfo(Prefix("2001:db8::/128"), null).getRouteKey();
k2 = new RouteInfo(Prefix("2001:db8::/128"), null).getRouteKey();
assertEquals(k1, k2);
assertEquals(k1.hashCode(), k2.hashCode());
// With prefix, gateway and interface. Type and MTU does not affect RouteKey equality
k1 = new RouteInfo(Prefix("192.0.2.0/24"), Address("192.0.2.1"), "wlan0",
RTN_UNREACHABLE, 1450).getRouteKey();
k2 = new RouteInfo(Prefix("192.0.2.0/24"), Address("192.0.2.1"), "wlan0",
RouteInfo.RTN_UNICAST, 1400).getRouteKey();
assertEquals(k1, k2);
assertEquals(k1.hashCode(), k2.hashCode());
// Different scope IDs are ignored by the kernel, so we consider them equal here too.
k1 = new RouteInfo(Prefix("2001:db8::/64"), Address("fe80::1%1"), "wlan0").getRouteKey();
k2 = new RouteInfo(Prefix("2001:db8::/64"), Address("fe80::1%2"), "wlan0").getRouteKey();
assertEquals(k1, k2);
assertEquals(k1.hashCode(), k2.hashCode());
// Different prefix
k1 = new RouteInfo(Prefix("192.0.2.0/24"), null).getRouteKey();
k2 = new RouteInfo(Prefix("192.0.3.0/24"), null).getRouteKey();
assertNotEquals(k1, k2);
// Different gateway
k1 = new RouteInfo(Prefix("ff02::1/128"), Address("2001:db8::1"), null).getRouteKey();
k2 = new RouteInfo(Prefix("ff02::1/128"), Address("2001:db8::2"), null).getRouteKey();
assertNotEquals(k1, k2);
// Different interface
k1 = new RouteInfo(Prefix("ff02::1/128"), null, "tun0").getRouteKey();
k2 = new RouteInfo(Prefix("ff02::1/128"), null, "tun1").getRouteKey();
assertNotEquals(k1, k2);
}
}
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