993306ed6b
Instead of statically linking against and jarjaring
TcpKeepalivePacketData, use the new android.net.TcpKeepalivePacketData
API for S. On R, build the KeepalivePacketDataParcelable from the base
KeepalivePacketData class.
The current ClientModeImpl code that uses a statically linked
TcpKeepalivePacketData is actually broken, as since R the system_server
has been sending a @hide android.net.TcpKeepalivePacketData, and
ClientModeImpl was testing it against com.android.wifi.x.android.net.*.
To fix this on R, this change rebuilds a
TcpKeepalivePacketDataParcelable class from the packet data included in
the base KeepalivePacketData class.
Bug: 172789687
Test: atest ConnectivityManagerTest#testCreateTcpKeepalive
See associated test change
Change-Id: Ia32b4444dbf90306b2cfd37ec13d4ba4e90cd1e8
206 lines
8.2 KiB
Java
206 lines
8.2 KiB
Java
/*
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* Copyright (C) 2020 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 com.android.testutils.ParcelUtils.assertParcelingIsLossless;
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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.assertTrue;
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import static org.junit.Assert.fail;
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import android.net.util.KeepalivePacketDataUtil;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.junit.runners.JUnit4;
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import java.net.InetAddress;
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import java.nio.ByteBuffer;
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@RunWith(JUnit4.class)
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public final class KeepalivePacketDataUtilTest {
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private static final byte[] IPV4_KEEPALIVE_SRC_ADDR = {10, 0, 0, 1};
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private static final byte[] IPV4_KEEPALIVE_DST_ADDR = {10, 0, 0, 5};
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@Before
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public void setUp() {}
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@Test
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public void testFromTcpKeepaliveStableParcelable() throws Exception {
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final int srcPort = 1234;
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final int dstPort = 4321;
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final int seq = 0x11111111;
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final int ack = 0x22222222;
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final int wnd = 8000;
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final int wndScale = 2;
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final int tos = 4;
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final int ttl = 64;
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TcpKeepalivePacketData resultData = null;
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final TcpKeepalivePacketDataParcelable testInfo = new TcpKeepalivePacketDataParcelable();
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testInfo.srcAddress = IPV4_KEEPALIVE_SRC_ADDR;
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testInfo.srcPort = srcPort;
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testInfo.dstAddress = IPV4_KEEPALIVE_DST_ADDR;
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testInfo.dstPort = dstPort;
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testInfo.seq = seq;
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testInfo.ack = ack;
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testInfo.rcvWnd = wnd;
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testInfo.rcvWndScale = wndScale;
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testInfo.tos = tos;
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testInfo.ttl = ttl;
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try {
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resultData = KeepalivePacketDataUtil.fromStableParcelable(testInfo);
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} catch (InvalidPacketException e) {
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fail("InvalidPacketException: " + e);
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}
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assertEquals(InetAddress.getByAddress(testInfo.srcAddress), resultData.getSrcAddress());
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assertEquals(InetAddress.getByAddress(testInfo.dstAddress), resultData.getDstAddress());
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assertEquals(testInfo.srcPort, resultData.getSrcPort());
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assertEquals(testInfo.dstPort, resultData.getDstPort());
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assertEquals(testInfo.seq, resultData.tcpSeq);
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assertEquals(testInfo.ack, resultData.tcpAck);
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assertEquals(testInfo.rcvWnd, resultData.tcpWindow);
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assertEquals(testInfo.rcvWndScale, resultData.tcpWindowScale);
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assertEquals(testInfo.tos, resultData.ipTos);
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assertEquals(testInfo.ttl, resultData.ipTtl);
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assertParcelingIsLossless(resultData);
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final byte[] packet = resultData.getPacket();
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// IP version and IHL
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assertEquals(packet[0], 0x45);
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// TOS
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assertEquals(packet[1], tos);
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// TTL
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assertEquals(packet[8], ttl);
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// Source IP address.
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byte[] ip = new byte[4];
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ByteBuffer buf = ByteBuffer.wrap(packet, 12, 4);
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buf.get(ip);
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assertArrayEquals(ip, IPV4_KEEPALIVE_SRC_ADDR);
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// Destination IP address.
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buf = ByteBuffer.wrap(packet, 16, 4);
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buf.get(ip);
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assertArrayEquals(ip, IPV4_KEEPALIVE_DST_ADDR);
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buf = ByteBuffer.wrap(packet, 20, 12);
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// Source port.
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assertEquals(buf.getShort(), srcPort);
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// Destination port.
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assertEquals(buf.getShort(), dstPort);
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// Sequence number.
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assertEquals(buf.getInt(), seq);
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// Ack.
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assertEquals(buf.getInt(), ack);
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// Window size.
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buf = ByteBuffer.wrap(packet, 34, 2);
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assertEquals(buf.getShort(), wnd >> wndScale);
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}
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//TODO: add ipv6 test when ipv6 supported
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@Test
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public void testToTcpKeepaliveStableParcelable() throws Exception {
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final int srcPort = 1234;
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final int dstPort = 4321;
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final int sequence = 0x11111111;
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final int ack = 0x22222222;
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final int wnd = 48_000;
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final int wndScale = 2;
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final int tos = 4;
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final int ttl = 64;
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final TcpKeepalivePacketDataParcelable testInfo = new TcpKeepalivePacketDataParcelable();
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testInfo.srcAddress = IPV4_KEEPALIVE_SRC_ADDR;
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testInfo.srcPort = srcPort;
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testInfo.dstAddress = IPV4_KEEPALIVE_DST_ADDR;
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testInfo.dstPort = dstPort;
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testInfo.seq = sequence;
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testInfo.ack = ack;
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testInfo.rcvWnd = wnd;
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testInfo.rcvWndScale = wndScale;
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testInfo.tos = tos;
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testInfo.ttl = ttl;
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TcpKeepalivePacketData testData = null;
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TcpKeepalivePacketDataParcelable resultData = null;
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testData = KeepalivePacketDataUtil.fromStableParcelable(testInfo);
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resultData = KeepalivePacketDataUtil.toStableParcelable(testData);
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assertArrayEquals(resultData.srcAddress, IPV4_KEEPALIVE_SRC_ADDR);
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assertArrayEquals(resultData.dstAddress, IPV4_KEEPALIVE_DST_ADDR);
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assertEquals(resultData.srcPort, srcPort);
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assertEquals(resultData.dstPort, dstPort);
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assertEquals(resultData.seq, sequence);
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assertEquals(resultData.ack, ack);
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assertEquals(resultData.rcvWnd, wnd);
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assertEquals(resultData.rcvWndScale, wndScale);
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assertEquals(resultData.tos, tos);
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assertEquals(resultData.ttl, ttl);
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final String expected = ""
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+ "android.net.TcpKeepalivePacketDataParcelable{srcAddress: [10, 0, 0, 1],"
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+ " srcPort: 1234, dstAddress: [10, 0, 0, 5], dstPort: 4321, seq: 286331153,"
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+ " ack: 572662306, rcvWnd: 48000, rcvWndScale: 2, tos: 4, ttl: 64}";
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assertEquals(expected, resultData.toString());
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}
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@Test
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public void testParseTcpKeepalivePacketData() throws Exception {
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final int srcPort = 1234;
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final int dstPort = 4321;
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final int sequence = 0x11111111;
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final int ack = 0x22222222;
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final int wnd = 4800;
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final int wndScale = 2;
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final int tos = 4;
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final int ttl = 64;
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final TcpKeepalivePacketDataParcelable testParcel = new TcpKeepalivePacketDataParcelable();
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testParcel.srcAddress = IPV4_KEEPALIVE_SRC_ADDR;
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testParcel.srcPort = srcPort;
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testParcel.dstAddress = IPV4_KEEPALIVE_DST_ADDR;
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testParcel.dstPort = dstPort;
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testParcel.seq = sequence;
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testParcel.ack = ack;
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testParcel.rcvWnd = wnd;
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testParcel.rcvWndScale = wndScale;
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testParcel.tos = tos;
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testParcel.ttl = ttl;
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final KeepalivePacketData testData =
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KeepalivePacketDataUtil.fromStableParcelable(testParcel);
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final TcpKeepalivePacketDataParcelable parsedParcelable =
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KeepalivePacketDataUtil.parseTcpKeepalivePacketData(testData);
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final TcpKeepalivePacketData roundTripData =
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KeepalivePacketDataUtil.fromStableParcelable(parsedParcelable);
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// Generated packet is the same, but rcvWnd / wndScale will differ if scale is non-zero
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assertTrue(testData.getPacket().length > 0);
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assertArrayEquals(testData.getPacket(), roundTripData.getPacket());
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testParcel.rcvWndScale = 0;
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final KeepalivePacketData noScaleTestData =
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KeepalivePacketDataUtil.fromStableParcelable(testParcel);
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final TcpKeepalivePacketDataParcelable noScaleParsedParcelable =
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KeepalivePacketDataUtil.parseTcpKeepalivePacketData(noScaleTestData);
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final TcpKeepalivePacketData noScaleRoundTripData =
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KeepalivePacketDataUtil.fromStableParcelable(noScaleParsedParcelable);
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assertEquals(noScaleTestData, noScaleRoundTripData);
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assertTrue(noScaleTestData.getPacket().length > 0);
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assertArrayEquals(noScaleTestData.getPacket(), noScaleRoundTripData.getPacket());
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}
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}
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