/* * 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.server.net; import static android.net.NetworkStats.DEFAULT_NETWORK_ALL; import static android.net.NetworkStats.DEFAULT_NETWORK_NO; import static android.net.NetworkStats.METERED_ALL; import static android.net.NetworkStats.METERED_NO; import static android.net.NetworkStats.ROAMING_ALL; 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_ALL; import static android.net.NetworkStats.TAG_NONE; import static android.net.NetworkStats.UID_ALL; import static com.android.server.net.NetworkStatsFactory.kernelToTag; import static com.android.testutils.DevSdkIgnoreRuleKt.SC_V2; import static org.junit.Assert.assertEquals; import static org.junit.Assert.fail; import static org.mockito.ArgumentMatchers.any; import static org.mockito.ArgumentMatchers.anyInt; import static org.mockito.Mockito.doReturn; import android.content.Context; import android.net.NetworkStats; import android.net.TrafficStats; import android.net.UnderlyingNetworkInfo; import android.os.SystemClock; import androidx.test.InstrumentationRegistry; import androidx.test.filters.SmallTest; import com.android.frameworks.tests.net.R; import com.android.internal.util.ProcFileReader; import com.android.server.BpfNetMaps; import com.android.testutils.DevSdkIgnoreRule; import com.android.testutils.DevSdkIgnoreRunner; import libcore.io.IoUtils; import libcore.testing.io.TestIoUtils; import org.junit.After; import org.junit.Before; import org.junit.Test; import org.junit.runner.RunWith; import org.mockito.Mock; import org.mockito.MockitoAnnotations; import java.io.File; import java.io.IOException; import java.net.ProtocolException; /** Tests for {@link NetworkStatsFactory}. */ @RunWith(DevSdkIgnoreRunner.class) @SmallTest @DevSdkIgnoreRule.IgnoreUpTo(SC_V2) public class NetworkStatsFactoryTest extends NetworkStatsBaseTest { private static final String CLAT_PREFIX = "v4-"; private File mTestProc; private NetworkStatsFactory mFactory; @Mock private Context mContext; @Mock private NetworkStatsFactory.Dependencies mDeps; @Mock private BpfNetMaps mBpfNetMaps; @Before public void setUp() throws Exception { MockitoAnnotations.initMocks(this); mTestProc = TestIoUtils.createTemporaryDirectory("proc"); // The libandroid_servers which have the native method is not available to // applications. So in order to have a test support native library, the native code // related to networkStatsFactory is compiled to a minimal native library and loaded here. System.loadLibrary("networkstatsfactorytestjni"); doReturn(mBpfNetMaps).when(mDeps).createBpfNetMaps(any()); mFactory = new NetworkStatsFactory(mContext, mDeps); mFactory.updateUnderlyingNetworkInfos(new UnderlyingNetworkInfo[0]); } @After public void tearDown() throws Exception { mFactory = null; } @Test public void testNetworkStatsDetail() throws Exception { final NetworkStats stats = factoryReadNetworkStatsDetail(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); } @Test public void testVpnRewriteTrafficThroughItself() throws Exception { UnderlyingNetworkInfo[] underlyingNetworkInfos = new UnderlyingNetworkInfo[] {createVpnInfo(new String[] {TEST_IFACE})}; mFactory.updateUnderlyingNetworkInfos(underlyingNetworkInfos); // create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption // overhead per packet): // // 1000 bytes (100 packets) were sent, and 2000 bytes (200 packets) were received by UID_RED // over VPN. // 500 bytes (50 packets) were sent, and 1000 bytes (100 packets) were received by UID_BLUE // over VPN. // // VPN UID rewrites packets read from TUN back to TUN, plus some of its own traffic final NetworkStats tunStats = factoryReadNetworkStatsDetail(R.raw.xt_qtaguid_vpn_rewrite_through_self); assertValues(tunStats, TUN_IFACE, UID_RED, SET_ALL, TAG_NONE, METERED_ALL, ROAMING_ALL, DEFAULT_NETWORK_ALL, 2000L, 200L, 1000L, 100L, 0); assertValues(tunStats, TUN_IFACE, UID_BLUE, SET_ALL, TAG_NONE, METERED_ALL, ROAMING_ALL, DEFAULT_NETWORK_ALL, 1000L, 100L, 500L, 50L, 0); assertValues(tunStats, TUN_IFACE, UID_VPN, SET_ALL, TAG_NONE, METERED_ALL, ROAMING_ALL, DEFAULT_NETWORK_ALL, 0L, 0L, 1600L, 160L, 0); assertValues(tunStats, TEST_IFACE, UID_RED, 2000L, 200L, 1000L, 100L); assertValues(tunStats, TEST_IFACE, UID_BLUE, 1000L, 100L, 500L, 50L); assertValues(tunStats, TEST_IFACE, UID_VPN, 300L, 0L, 260L, 26L); } @Test public void testVpnWithClat() throws Exception { final UnderlyingNetworkInfo[] underlyingNetworkInfos = new UnderlyingNetworkInfo[] { createVpnInfo(new String[] {CLAT_PREFIX + TEST_IFACE})}; mFactory.updateUnderlyingNetworkInfos(underlyingNetworkInfos); mFactory.noteStackedIface(CLAT_PREFIX + TEST_IFACE, TEST_IFACE); // create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption // overhead per packet): // 1000 bytes (100 packets) were sent, and 2000 bytes (200 packets) were received by UID_RED // over VPN. // 500 bytes (50 packets) were sent, and 1000 bytes (100 packets) were received by UID_BLUE // over VPN. // VPN sent 1650 bytes (150 packets), and received 3300 (300 packets) over v4-WiFi, and clat // added 20 bytes per packet of extra overhead // // For 1650 bytes sent over v4-WiFi, 4650 bytes were actually sent over WiFi, which is // expected to be split as follows: // UID_RED: 1000 bytes, 100 packets // UID_BLUE: 500 bytes, 50 packets // UID_VPN: 3150 bytes, 0 packets // // For 3300 bytes received over v4-WiFi, 9300 bytes were actually sent over WiFi, which is // expected to be split as follows: // UID_RED: 2000 bytes, 200 packets // UID_BLUE: 1000 bytes, 100 packets // UID_VPN: 6300 bytes, 0 packets final NetworkStats tunStats = factoryReadNetworkStatsDetail(R.raw.xt_qtaguid_vpn_with_clat); assertValues(tunStats, CLAT_PREFIX + TEST_IFACE, UID_RED, 2000L, 200L, 1000, 100L); assertValues(tunStats, CLAT_PREFIX + TEST_IFACE, UID_BLUE, 1000L, 100L, 500L, 50L); assertValues(tunStats, CLAT_PREFIX + TEST_IFACE, UID_VPN, 6300L, 0L, 3150L, 0L); } @Test public void testVpnWithOneUnderlyingIface() throws Exception { final UnderlyingNetworkInfo[] underlyingNetworkInfos = new UnderlyingNetworkInfo[] {createVpnInfo(new String[] {TEST_IFACE})}; mFactory.updateUnderlyingNetworkInfos(underlyingNetworkInfos); // create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption // overhead per packet): // 1000 bytes (100 packets) were sent, and 2000 bytes (200 packets) were received by UID_RED // over VPN. // 500 bytes (50 packets) were sent, and 1000 bytes (100 packets) were received by UID_BLUE // over VPN. // VPN sent 1650 bytes (150 packets), and received 3300 (300 packets) over WiFi. // Of 1650 bytes sent over WiFi, expect 1000 bytes attributed to UID_RED, 500 bytes // attributed to UID_BLUE, and 150 bytes attributed to UID_VPN. // Of 3300 bytes received over WiFi, expect 2000 bytes attributed to UID_RED, 1000 bytes // attributed to UID_BLUE, and 300 bytes attributed to UID_VPN. final NetworkStats tunStats = factoryReadNetworkStatsDetail(R.raw.xt_qtaguid_vpn_one_underlying); assertValues(tunStats, TEST_IFACE, UID_RED, 2000L, 200L, 1000L, 100L); assertValues(tunStats, TEST_IFACE, UID_BLUE, 1000L, 100L, 500L, 50L); assertValues(tunStats, TEST_IFACE, UID_VPN, 300L, 0L, 150L, 0L); } @Test public void testVpnWithOneUnderlyingIfaceAndOwnTraffic() throws Exception { // WiFi network is connected and VPN is using WiFi (which has TEST_IFACE). final UnderlyingNetworkInfo[] underlyingNetworkInfos = new UnderlyingNetworkInfo[] {createVpnInfo(new String[] {TEST_IFACE})}; mFactory.updateUnderlyingNetworkInfos(underlyingNetworkInfos); // create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption // overhead per packet): // 1000 bytes (100 packets) were sent, and 2000 bytes (200 packets) were received by UID_RED // over VPN. // 500 bytes (50 packets) were sent, and 1000 bytes (100 packets) were received by UID_BLUE // over VPN. // Additionally, the VPN sends 6000 bytes (600 packets) of its own traffic into the tun // interface (passing that traffic to the VPN endpoint), and receives 5000 bytes (500 // packets) from it. Including overhead that is 6600/5500 bytes. // VPN sent 8250 bytes (750 packets), and received 8800 (800 packets) over WiFi. // Of 8250 bytes sent over WiFi, expect 1000 bytes attributed to UID_RED, 500 bytes // attributed to UID_BLUE, and 6750 bytes attributed to UID_VPN. // Of 8800 bytes received over WiFi, expect 2000 bytes attributed to UID_RED, 1000 bytes // attributed to UID_BLUE, and 5800 bytes attributed to UID_VPN. final NetworkStats tunStats = factoryReadNetworkStatsDetail(R.raw.xt_qtaguid_vpn_one_underlying_own_traffic); assertValues(tunStats, TEST_IFACE, UID_RED, 2000L, 200L, 1000L, 100L); assertValues(tunStats, TEST_IFACE, UID_BLUE, 1000L, 100L, 500L, 50L); assertValues(tunStats, TEST_IFACE, UID_VPN, 5800L, 500L, 6750L, 600L); } @Test public void testVpnWithOneUnderlyingIface_withCompression() throws Exception { // WiFi network is connected and VPN is using WiFi (which has TEST_IFACE). final UnderlyingNetworkInfo[] underlyingNetworkInfos = new UnderlyingNetworkInfo[] {createVpnInfo(new String[] {TEST_IFACE})}; mFactory.updateUnderlyingNetworkInfos(underlyingNetworkInfos); // create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption // overhead per packet): // 1000 bytes (100 packets) were sent/received by UID_RED over VPN. // 3000 bytes (300 packets) were sent/received by UID_BLUE over VPN. // VPN sent/received 1000 bytes (100 packets) over WiFi. // Of 1000 bytes over WiFi, expect 250 bytes attributed UID_RED and 750 bytes to UID_BLUE, // with nothing attributed to UID_VPN for both rx/tx traffic. final NetworkStats tunStats = factoryReadNetworkStatsDetail(R.raw.xt_qtaguid_vpn_one_underlying_compression); assertValues(tunStats, TEST_IFACE, UID_RED, 250L, 25L, 250L, 25L); assertValues(tunStats, TEST_IFACE, UID_BLUE, 750L, 75L, 750L, 75L); assertValues(tunStats, TEST_IFACE, UID_VPN, 0L, 0L, 0L, 0L); } @Test public void testVpnWithTwoUnderlyingIfaces_packetDuplication() throws Exception { // WiFi and Cell networks are connected and VPN is using WiFi (which has TEST_IFACE) and // Cell (which has TEST_IFACE2) and has declared both of them in its underlying network set. // Additionally, VPN is duplicating traffic across both WiFi and Cell. final UnderlyingNetworkInfo[] underlyingNetworkInfos = new UnderlyingNetworkInfo[] {createVpnInfo(new String[] {TEST_IFACE, TEST_IFACE2})}; mFactory.updateUnderlyingNetworkInfos(underlyingNetworkInfos); // create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption // overhead per packet): // 1000 bytes (100 packets) were sent/received by UID_RED and UID_BLUE over VPN. // VPN sent/received 4400 bytes (400 packets) over both WiFi and Cell (8800 bytes in total). // Of 8800 bytes over WiFi/Cell, expect: // - 500 bytes rx/tx each over WiFi/Cell attributed to both UID_RED and UID_BLUE. // - 1200 bytes rx/tx each over WiFi/Cell for VPN_UID. final NetworkStats tunStats = factoryReadNetworkStatsDetail(R.raw.xt_qtaguid_vpn_two_underlying_duplication); assertValues(tunStats, TEST_IFACE, UID_RED, 500L, 50L, 500L, 50L); assertValues(tunStats, TEST_IFACE, UID_BLUE, 500L, 50L, 500L, 50L); assertValues(tunStats, TEST_IFACE, UID_VPN, 1200L, 100L, 1200L, 100L); assertValues(tunStats, TEST_IFACE2, UID_RED, 500L, 50L, 500L, 50L); assertValues(tunStats, TEST_IFACE2, UID_BLUE, 500L, 50L, 500L, 50L); assertValues(tunStats, TEST_IFACE2, UID_VPN, 1200L, 100L, 1200L, 100L); } @Test public void testConcurrentVpns() throws Exception { // Assume two VPNs are connected on two different network interfaces. VPN1 is using // TEST_IFACE and VPN2 is using TEST_IFACE2. final UnderlyingNetworkInfo[] underlyingNetworkInfos = new UnderlyingNetworkInfo[] { createVpnInfo(TUN_IFACE, new String[] {TEST_IFACE}), createVpnInfo(TUN_IFACE2, new String[] {TEST_IFACE2})}; mFactory.updateUnderlyingNetworkInfos(underlyingNetworkInfos); // create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption // overhead per packet): // 1000 bytes (100 packets) were sent, and 2000 bytes (200 packets) were received by UID_RED // over VPN1. // 700 bytes (70 packets) were sent, and 3000 bytes (300 packets) were received by UID_RED // over VPN2. // 500 bytes (50 packets) were sent, and 1000 bytes (100 packets) were received by UID_BLUE // over VPN1. // 250 bytes (25 packets) were sent, and 500 bytes (50 packets) were received by UID_BLUE // over VPN2. // VPN1 sent 1650 bytes (150 packets), and received 3300 (300 packets) over TEST_IFACE. // Of 1650 bytes sent over WiFi, expect 1000 bytes attributed to UID_RED, 500 bytes // attributed to UID_BLUE, and 150 bytes attributed to UID_VPN. // Of 3300 bytes received over WiFi, expect 2000 bytes attributed to UID_RED, 1000 bytes // attributed to UID_BLUE, and 300 bytes attributed to UID_VPN. // VPN2 sent 1045 bytes (95 packets), and received 3850 (350 packets) over TEST_IFACE2. // Of 1045 bytes sent over Cell, expect 700 bytes attributed to UID_RED, 250 bytes // attributed to UID_BLUE, and 95 bytes attributed to UID_VPN. // Of 3850 bytes received over Cell, expect 3000 bytes attributed to UID_RED, 500 bytes // attributed to UID_BLUE, and 350 bytes attributed to UID_VPN. final NetworkStats tunStats = factoryReadNetworkStatsDetail(R.raw.xt_qtaguid_vpn_one_underlying_two_vpn); assertValues(tunStats, TEST_IFACE, UID_RED, 2000L, 200L, 1000L, 100L); assertValues(tunStats, TEST_IFACE, UID_BLUE, 1000L, 100L, 500L, 50L); assertValues(tunStats, TEST_IFACE2, UID_RED, 3000L, 300L, 700L, 70L); assertValues(tunStats, TEST_IFACE2, UID_BLUE, 500L, 50L, 250L, 25L); assertValues(tunStats, TEST_IFACE, UID_VPN, 300L, 0L, 150L, 0L); assertValues(tunStats, TEST_IFACE2, UID_VPN, 350L, 0L, 95L, 0L); } @Test public void testVpnWithTwoUnderlyingIfaces_splitTraffic() throws Exception { // WiFi and Cell networks are connected and VPN is using WiFi (which has TEST_IFACE) and // Cell (which has TEST_IFACE2) and has declared both of them in its underlying network set. // Additionally, VPN is arbitrarily splitting traffic across WiFi and Cell. final UnderlyingNetworkInfo[] underlyingNetworkInfos = new UnderlyingNetworkInfo[] {createVpnInfo(new String[] {TEST_IFACE, TEST_IFACE2})}; mFactory.updateUnderlyingNetworkInfos(underlyingNetworkInfos); // create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption // overhead per packet): // 1000 bytes (100 packets) were sent, and 500 bytes (50 packets) received by UID_RED over // VPN. // VPN sent 660 bytes (60 packets) over WiFi and 440 bytes (40 packets) over Cell. // And, it received 330 bytes (30 packets) over WiFi and 220 bytes (20 packets) over Cell. // For UID_RED, expect 600 bytes attributed over WiFi and 400 bytes over Cell for sent (tx) // traffic. For received (rx) traffic, expect 300 bytes over WiFi and 200 bytes over Cell. // // For UID_VPN, expect 60 bytes attributed over WiFi and 40 bytes over Cell for tx traffic. // And, 30 bytes over WiFi and 20 bytes over Cell for rx traffic. final NetworkStats tunStats = factoryReadNetworkStatsDetail(R.raw.xt_qtaguid_vpn_two_underlying_split); assertValues(tunStats, TEST_IFACE, UID_RED, 300L, 30L, 600L, 60L); assertValues(tunStats, TEST_IFACE, UID_VPN, 30L, 0L, 60L, 0L); assertValues(tunStats, TEST_IFACE2, UID_RED, 200L, 20L, 400L, 40L); assertValues(tunStats, TEST_IFACE2, UID_VPN, 20L, 0L, 40L, 0L); } @Test public void testVpnWithTwoUnderlyingIfaces_splitTrafficWithCompression() throws Exception { // WiFi and Cell networks are connected and VPN is using WiFi (which has TEST_IFACE) and // Cell (which has TEST_IFACE2) and has declared both of them in its underlying network set. // Additionally, VPN is arbitrarily splitting compressed traffic across WiFi and Cell. final UnderlyingNetworkInfo[] underlyingNetworkInfos = new UnderlyingNetworkInfo[] {createVpnInfo(new String[] {TEST_IFACE, TEST_IFACE2})}; mFactory.updateUnderlyingNetworkInfos(underlyingNetworkInfos); // create some traffic (assume 10 bytes of MTU for VPN interface: // 1000 bytes (100 packets) were sent/received by UID_RED over VPN. // VPN sent/received 600 bytes (60 packets) over WiFi and 200 bytes (20 packets) over Cell. // For UID_RED, expect 600 bytes attributed over WiFi and 200 bytes over Cell for both // rx/tx. // UID_VPN gets nothing attributed to it (avoiding negative stats). final NetworkStats tunStats = factoryReadNetworkStatsDetail( R.raw.xt_qtaguid_vpn_two_underlying_split_compression); assertValues(tunStats, TEST_IFACE, UID_RED, 600L, 60L, 600L, 60L); assertValues(tunStats, TEST_IFACE, UID_VPN, 0L, 0L, 0L, 0L); assertValues(tunStats, TEST_IFACE2, UID_RED, 200L, 20L, 200L, 20L); assertValues(tunStats, TEST_IFACE2, UID_VPN, 0L, 0L, 0L, 0L); } @Test public void testVpnWithIncorrectUnderlyingIface() throws Exception { // WiFi and Cell networks are connected and VPN is using Cell (which has TEST_IFACE2), // but has declared only WiFi (TEST_IFACE) in its underlying network set. final UnderlyingNetworkInfo[] underlyingNetworkInfos = new UnderlyingNetworkInfo[] {createVpnInfo(new String[] {TEST_IFACE})}; mFactory.updateUnderlyingNetworkInfos(underlyingNetworkInfos); // create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption // overhead per packet): // 1000 bytes (100 packets) were sent/received by UID_RED over VPN. // VPN sent/received 1100 bytes (100 packets) over Cell. // Of 1100 bytes over Cell, expect all of it attributed to UID_VPN for both rx/tx traffic. final NetworkStats tunStats = factoryReadNetworkStatsDetail(R.raw.xt_qtaguid_vpn_incorrect_iface); assertValues(tunStats, TEST_IFACE, UID_RED, 0L, 0L, 0L, 0L); assertValues(tunStats, TEST_IFACE, UID_VPN, 0L, 0L, 0L, 0L); assertValues(tunStats, TEST_IFACE2, UID_RED, 0L, 0L, 0L, 0L); assertValues(tunStats, TEST_IFACE2, UID_VPN, 1100L, 100L, 1100L, 100L); } @Test 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")); } @Test public void testNetworkStatsWithSet() throws Exception { final NetworkStats stats = factoryReadNetworkStatsDetail(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); } @Test public void testDoubleClatAccountingSimple() throws Exception { mFactory.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. final NetworkStats stats = factoryReadNetworkStatsDetail(R.raw.xt_qtaguid_with_clat_simple); assertEquals(3, stats.size()); assertStatsEntry(stats, "v4-wlan0", 10060, SET_DEFAULT, 0x0, 46860L, 4920L); assertStatsEntry(stats, "wlan0", 0, SET_DEFAULT, 0x0, 0L, 0L); } @Test public void testDoubleClatAccounting() throws Exception { mFactory.noteStackedIface("v4-wlan0", "wlan0"); final NetworkStats stats = factoryReadNetworkStatsDetail(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, 0L, 0L); 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); assertNoStatsEntry(stats, "wlan0", 1029, SET_DEFAULT, 0x0); } @Test public void testRemoveUidsStats() throws Exception { final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 1) .insertEntry(TEST_IFACE, UID_RED, SET_DEFAULT, TAG_NONE, 16L, 1L, 16L, 1L, 0L) .insertEntry(TEST_IFACE, UID_BLUE, SET_DEFAULT, TAG_NONE, 256L, 16L, 512L, 32L, 0L) .insertEntry(TEST_IFACE, UID_GREEN, SET_DEFAULT, TAG_NONE, 64L, 3L, 1024L, 8L, 0L); doReturn(stats).when(mDeps).getNetworkStatsDetail(); final String[] ifaces = new String[]{TEST_IFACE}; final NetworkStats res = mFactory.readNetworkStatsDetail(UID_ALL, ifaces, TAG_ALL); // Verify that the result of the mocked stats are expected. assertValues(res, TEST_IFACE, UID_RED, 16L, 1L, 16L, 1L); assertValues(res, TEST_IFACE, UID_BLUE, 256L, 16L, 512L, 32L); assertValues(res, TEST_IFACE, UID_GREEN, 64L, 3L, 1024L, 8L); // Assume the apps were removed. final int[] removedUids = new int[]{UID_RED, UID_BLUE}; mFactory.removeUidsLocked(removedUids); // Return empty stats for reading the result of removing uids stats later. doReturn(buildEmptyStats()).when(mDeps).getNetworkStatsDetail(); final NetworkStats removedUidsStats = mFactory.readNetworkStatsDetail(UID_ALL, ifaces, TAG_ALL); // Verify that the stats of the removed uids were removed. assertValues(removedUidsStats, TEST_IFACE, UID_RED, 0L, 0L, 0L, 0L); assertValues(removedUidsStats, TEST_IFACE, UID_BLUE, 0L, 0L, 0L, 0L); assertValues(removedUidsStats, TEST_IFACE, UID_GREEN, 64L, 3L, 1024L, 8L); } private NetworkStats buildEmptyStats() { return new NetworkStats(SystemClock.elapsedRealtime(), 0); } private NetworkStats parseNetworkStatsFromGoldenSample(int resourceId, int initialSize, boolean consumeHeader, boolean checkActive, boolean isUidData) throws IOException { final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), initialSize); final NetworkStats.Entry entry = new NetworkStats.Entry(); ProcFileReader reader = null; int idx = 1; int lastIdx = 1; try { reader = new ProcFileReader(InstrumentationRegistry.getContext().getResources() .openRawResource(resourceId)); if (consumeHeader) { reader.finishLine(); } while (reader.hasMoreData()) { if (isUidData) { idx = reader.nextInt(); if (idx != lastIdx + 1) { throw new ProtocolException( "inconsistent idx=" + idx + " after lastIdx=" + lastIdx); } lastIdx = idx; } entry.iface = reader.nextString(); // Read the uid based information from file. Otherwise, assign with target value. entry.tag = isUidData ? kernelToTag(reader.nextString()) : TAG_NONE; entry.uid = isUidData ? reader.nextInt() : UID_ALL; entry.set = isUidData ? reader.nextInt() : SET_ALL; // For fetching active numbers. Dev specific final boolean active = checkActive ? reader.nextInt() != 0 : false; // Always include snapshot values entry.rxBytes = reader.nextLong(); entry.rxPackets = reader.nextLong(); entry.txBytes = reader.nextLong(); entry.txPackets = reader.nextLong(); // Fold in active numbers, but only when active if (active) { entry.rxBytes += reader.nextLong(); entry.rxPackets += reader.nextLong(); entry.txBytes += reader.nextLong(); entry.txPackets += reader.nextLong(); } stats.insertEntry(entry); reader.finishLine(); } } catch (NullPointerException | NumberFormatException e) { final String errMsg = isUidData ? "problem parsing idx " + idx : "problem parsing stats"; final ProtocolException pe = new ProtocolException(errMsg); pe.initCause(e); throw pe; } finally { IoUtils.closeQuietly(reader); } return stats; } private NetworkStats factoryReadNetworkStatsDetail(int resourceId) throws Exception { // Choose a general detail stats sample size from the experiences to prevent from // frequently allocating buckets. final NetworkStats statsFromResource = parseNetworkStatsFromGoldenSample(resourceId, 24 /* initialSize */, true /* consumeHeader */, false /* checkActive */, true /* isUidData */); doReturn(statsFromResource).when(mDeps).getNetworkStatsDetail(); 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, DEFAULT_NETWORK_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 assertNoStatsEntry(NetworkStats stats, String iface, int uid, int set, int tag) { final int i = stats.findIndex(iface, uid, set, tag, METERED_NO, ROAMING_NO, DEFAULT_NETWORK_NO); if (i >= 0) { fail("unexpected NetworkStats entry at " + i); } } private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set, int tag, long rxBytes, long rxPackets, long txBytes, long txPackets) { assertStatsEntry(stats, iface, uid, set, tag, METERED_NO, ROAMING_NO, DEFAULT_NETWORK_NO, rxBytes, rxPackets, txBytes, txPackets); } private static void assertStatsEntry(NetworkStats stats, String iface, int uid, int set, int tag, int metered, int roaming, int defaultNetwork, long rxBytes, long rxPackets, long txBytes, long txPackets) { final int i = stats.findIndex(iface, uid, set, tag, metered, roaming, defaultNetwork); if (i < 0) { fail(String.format("no NetworkStats for (iface: %s, uid: %d, set: %d, tag: %d, metered:" + " %d, roaming: %d, defaultNetwork: %d)", iface, uid, set, tag, metered, roaming, defaultNetwork)); } 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); } }