/*
* Copyright (C) 2011 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 com.android.internal.net;
import static android.net.NetworkStats.METERED_NO;
import static android.net.NetworkStats.ROAMING_NO;
import static android.net.NetworkStats.SET_ALL;
import static android.net.NetworkStats.SET_DEFAULT;
import static android.net.NetworkStats.SET_FOREGROUND;
import static android.net.NetworkStats.TAG_NONE;
import static android.net.NetworkStats.UID_ALL;
import static com.android.server.NetworkManagementSocketTagger.kernelToTag;
import android.content.res.Resources;
import android.net.NetworkStats;
import android.net.TrafficStats;
import android.support.test.filters.SmallTest;
import android.test.AndroidTestCase;
import com.android.frameworks.tests.net.R;
import java.io.File;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.InputStream;
import java.io.OutputStream;
import libcore.io.IoUtils;
import libcore.io.Streams;
/**
* Tests for {@link NetworkStatsFactory}.
*/
@SmallTest
public class NetworkStatsFactoryTest extends AndroidTestCase {
private File mTestProc;
private NetworkStatsFactory mFactory;
@Override
public void setUp() throws Exception {
super.setUp();
mTestProc = new File(getContext().getFilesDir(), "proc");
if (mTestProc.exists()) {
IoUtils.deleteContents(mTestProc);
}
mFactory = new NetworkStatsFactory(mTestProc);
}
@Override
public void tearDown() throws Exception {
mFactory = null;
if (mTestProc.exists()) {
IoUtils.deleteContents(mTestProc);
}
super.tearDown();
}
public void testNetworkStatsDetail() throws Exception {
final NetworkStats stats = parseDetailedStats(R.raw.xt_qtaguid_typical);
assertEquals(70, stats.size());
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, 18621L, 2898L);
assertStatsEntry(stats, "wlan0", 10011, SET_DEFAULT, 0x0, 35777L, 5718L);
assertStatsEntry(stats, "wlan0", 10021, SET_DEFAULT, 0x7fffff01, 562386L, 49228L);
assertStatsEntry(stats, "rmnet1", 10021, SET_DEFAULT, 0x30100000, 219110L, 227423L);
assertStatsEntry(stats, "rmnet2", 10001, SET_DEFAULT, 0x0, 1125899906842624L, 984L);
}
public void testKernelTags() throws Exception {
assertEquals(0, kernelToTag("0x0000000000000000"));
assertEquals(0x32, kernelToTag("0x0000003200000000"));
assertEquals(2147483647, kernelToTag("0x7fffffff00000000"));
assertEquals(0, kernelToTag("0x0000000000000000"));
assertEquals(2147483136, kernelToTag("0x7FFFFE0000000000"));
assertEquals(0, kernelToTag("0x0"));
assertEquals(0, kernelToTag("0xf00d"));
assertEquals(1, kernelToTag("0x100000000"));
assertEquals(14438007, kernelToTag("0xdc4e7700000000"));
assertEquals(TrafficStats.TAG_SYSTEM_DOWNLOAD, kernelToTag("0xffffff0100000000"));
}
public void testNetworkStatsWithSet() throws Exception {
final NetworkStats stats = parseDetailedStats(R.raw.xt_qtaguid_typical);
assertEquals(70, stats.size());
assertStatsEntry(stats, "rmnet1", 10021, SET_DEFAULT, 0x30100000, 219110L, 578L, 227423L,
676L);
assertStatsEntry(stats, "rmnet1", 10021, SET_FOREGROUND, 0x30100000, 742L, 3L, 1265L, 3L);
}
public void testNetworkStatsSingle() throws Exception {
stageFile(R.raw.xt_qtaguid_iface_typical, file("net/xt_qtaguid/iface_stat_all"));
final NetworkStats stats = mFactory.readNetworkStatsSummaryDev();
assertEquals(6, stats.size());
assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 2112L, 24L, 700L, 10L);
assertStatsEntry(stats, "test1", UID_ALL, SET_ALL, TAG_NONE, 6L, 8L, 10L, 12L);
assertStatsEntry(stats, "test2", UID_ALL, SET_ALL, TAG_NONE, 1L, 2L, 3L, 4L);
}
public void testNetworkStatsXt() throws Exception {
stageFile(R.raw.xt_qtaguid_iface_fmt_typical, file("net/xt_qtaguid/iface_stat_fmt"));
final NetworkStats stats = mFactory.readNetworkStatsSummaryXt();
assertEquals(3, stats.size());
assertStatsEntry(stats, "rmnet0", UID_ALL, SET_ALL, TAG_NONE, 6824L, 16L, 5692L, 10L);
assertStatsEntry(stats, "rmnet1", UID_ALL, SET_ALL, TAG_NONE, 11153922L, 8051L, 190226L,
2468L);
assertStatsEntry(stats, "rmnet2", UID_ALL, SET_ALL, TAG_NONE, 4968L, 35L, 3081L, 39L);
}
public void testDoubleClatAccounting() throws Exception {
NetworkStatsFactory.noteStackedIface("v4-wlan0", "wlan0");
// xt_qtaguid_with_clat_simple is a synthetic file that simulates
// - 213 received 464xlat packets of size 200 bytes
// - 41 sent 464xlat packets of size 100 bytes
// - no other traffic on base interface for root uid.
NetworkStats stats = parseDetailedStats(R.raw.xt_qtaguid_with_clat_simple);
assertEquals(4, stats.size());
assertStatsEntry(stats, "v4-wlan0", 10060, SET_DEFAULT, 0x0, 46860L, 4920L);
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, 0L, 0L);
stats = parseDetailedStats(R.raw.xt_qtaguid_with_clat);
assertEquals(42, stats.size());
assertStatsEntry(stats, "v4-wlan0", 0, SET_DEFAULT, 0x0, 356L, 276L);
assertStatsEntry(stats, "v4-wlan0", 1000, SET_DEFAULT, 0x0, 30812L, 2310L);
assertStatsEntry(stats, "v4-wlan0", 10102, SET_DEFAULT, 0x0, 10022L, 3330L);
assertStatsEntry(stats, "v4-wlan0", 10060, SET_DEFAULT, 0x0, 9532772L, 254112L);
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, 15229L, 5766L);
assertStatsEntry(stats, "wlan0", 1000, SET_DEFAULT, 0x0, 6126L, 2013L);
assertStatsEntry(stats, "wlan0", 10013, SET_DEFAULT, 0x0, 0L, 144L);
assertStatsEntry(stats, "wlan0", 10018, SET_DEFAULT, 0x0, 5980263L, 167667L);
assertStatsEntry(stats, "wlan0", 10060, SET_DEFAULT, 0x0, 134356L, 8705L);
assertStatsEntry(stats, "wlan0", 10079, SET_DEFAULT, 0x0, 10926L, 1507L);
assertStatsEntry(stats, "wlan0", 10102, SET_DEFAULT, 0x0, 25038L, 8245L);
assertStatsEntry(stats, "wlan0", 10103, SET_DEFAULT, 0x0, 0L, 192L);
assertStatsEntry(stats, "dummy0", 0, SET_DEFAULT, 0x0, 0L, 168L);
assertStatsEntry(stats, "lo", 0, SET_DEFAULT, 0x0, 1288L, 1288L);
NetworkStatsFactory.noteStackedIface("v4-wlan0", null);
}
public void testDoubleClatAccounting100MBDownload() throws Exception {
// Downloading 100mb from an ipv4 only destination in a foreground activity
long appRxBytesBefore = 328684029L;
long appRxBytesAfter = 439237478L;
assertEquals("App traffic should be ~100MB", 110553449, appRxBytesAfter - appRxBytesBefore);
long rootRxBytesBefore = 1394011L;
long rootRxBytesAfter = 1398634L;
assertEquals("UID 0 traffic should be ~0", 4623, rootRxBytesAfter - rootRxBytesBefore);
NetworkStatsFactory.noteStackedIface("v4-wlan0", "wlan0");
NetworkStats stats;
// Stats snapshot before the download
stats = parseDetailedStats(R.raw.xt_qtaguid_with_clat_100mb_download_before);
assertStatsEntry(stats, "v4-wlan0", 10106, SET_FOREGROUND, 0x0, appRxBytesBefore, 5199872L);
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, rootRxBytesBefore, 647888L);
// Stats snapshot after the download
stats = parseDetailedStats(R.raw.xt_qtaguid_with_clat_100mb_download_after);
assertStatsEntry(stats, "v4-wlan0", 10106, SET_FOREGROUND, 0x0, appRxBytesAfter, 7867488L);
assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, rootRxBytesAfter, 647587L);
NetworkStatsFactory.noteStackedIface("v4-wlan0", null);
}
/**
* Copy a {@link Resources#openRawResource(int)} into {@link File} for
* testing purposes.
*/
private void stageFile(int rawId, File file) throws Exception {
new File(file.getParent()).mkdirs();
InputStream in = null;
OutputStream out = null;
try {
in = getContext().getResources().openRawResource(rawId);
out = new FileOutputStream(file);
Streams.copy(in, out);
} finally {
IoUtils.closeQuietly(in);
IoUtils.closeQuietly(out);
}
}
private void stageLong(long value, File file) throws Exception {
new File(file.getParent()).mkdirs();
FileWriter out = null;
try {
out = new FileWriter(file);
out.write(Long.toString(value));
} finally {
IoUtils.closeQuietly(out);
}
}
private File file(String path) throws Exception {
return new File(mTestProc, path);
}
private NetworkStats parseDetailedStats(int resourceId) throws Exception {
stageFile(resourceId, file("net/xt_qtaguid/stats"));
return mFactory.readNetworkStatsDetail();
}
private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set,
int tag, long rxBytes, long txBytes) {
final int i = stats.findIndex(iface, uid, set, tag, METERED_NO, ROAMING_NO);
if (i < 0) {
fail(String.format("no NetworkStats for (iface: %s, uid: %d, set: %d, tag: %d)",
iface, uid, set, tag));
}
final NetworkStats.Entry entry = stats.getValues(i, null);
assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes);
assertEquals("unexpected txBytes", txBytes, entry.txBytes);
}
private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set,
int tag, long rxBytes, long rxPackets, long txBytes, long txPackets) {
final int i = stats.findIndex(iface, uid, set, tag, METERED_NO, ROAMING_NO);
if (i < 0) {
fail(String.format("no NetworkStats for (iface: %s, uid: %d, set: %d, tag: %d)",
iface, uid, set, tag));
}
final NetworkStats.Entry entry = stats.getValues(i, null);
assertEquals("unexpected rxBytes", rxBytes, entry.rxBytes);
assertEquals("unexpected rxPackets", rxPackets, entry.rxPackets);
assertEquals("unexpected txBytes", txBytes, entry.txBytes);
assertEquals("unexpected txPackets", txPackets, entry.txPackets);
}
}