| /* |
| * Copyright (C) 2016, 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.connectivity; |
| |
| import static android.net.metrics.INetdEventListener.EVENT_GETADDRINFO; |
| import static android.net.metrics.INetdEventListener.EVENT_GETHOSTBYNAME; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.assertTrue; |
| import static org.junit.Assert.fail; |
| import static org.mockito.Mockito.any; |
| import static org.mockito.Mockito.mock; |
| import static org.mockito.Mockito.anyInt; |
| import static org.mockito.Mockito.eq; |
| import static org.mockito.Mockito.timeout; |
| import static org.mockito.Mockito.times; |
| import static org.mockito.Mockito.verify; |
| import static org.mockito.Mockito.when; |
| |
| import android.content.Context; |
| import android.net.ConnectivityManager; |
| import android.net.Network; |
| import android.net.NetworkCapabilities; |
| import android.support.test.runner.AndroidJUnit4; |
| import android.system.OsConstants; |
| import android.test.suitebuilder.annotation.SmallTest; |
| import android.util.Base64; |
| |
| import com.android.server.connectivity.metrics.nano.IpConnectivityLogClass.DNSLookupBatch; |
| import com.android.server.connectivity.metrics.nano.IpConnectivityLogClass.IpConnectivityEvent; |
| import com.android.server.connectivity.metrics.nano.IpConnectivityLogClass.IpConnectivityLog; |
| |
| import java.io.FileOutputStream; |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Comparator; |
| import java.util.List; |
| |
| import org.junit.Before; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| |
| @RunWith(AndroidJUnit4.class) |
| @SmallTest |
| public class NetdEventListenerServiceTest { |
| private static final String EXAMPLE_IPV4 = "192.0.2.1"; |
| private static final String EXAMPLE_IPV6 = "2001:db8:1200::2:1"; |
| |
| NetdEventListenerService mNetdEventListenerService; |
| ConnectivityManager mCm; |
| |
| @Before |
| public void setUp() { |
| NetworkCapabilities ncWifi = new NetworkCapabilities(); |
| NetworkCapabilities ncCell = new NetworkCapabilities(); |
| ncWifi.addTransportType(NetworkCapabilities.TRANSPORT_WIFI); |
| ncCell.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR); |
| |
| mCm = mock(ConnectivityManager.class); |
| when(mCm.getNetworkCapabilities(new Network(100))).thenReturn(ncWifi); |
| when(mCm.getNetworkCapabilities(new Network(101))).thenReturn(ncCell); |
| |
| mNetdEventListenerService = new NetdEventListenerService(mCm); |
| } |
| |
| @Test |
| public void testWakeupEventLogging() throws Exception { |
| final int BUFFER_LENGTH = NetdEventListenerService.WAKEUP_EVENT_BUFFER_LENGTH; |
| |
| // Assert no events |
| String[] events1 = listNetdEvent(); |
| assertEquals(new String[]{""}, events1); |
| |
| long now = System.currentTimeMillis(); |
| String prefix = "iface:wlan0"; |
| int[] uids = { 10001, 10002, 10004, 1000, 10052, 10023, 10002, 10123, 10004 }; |
| for (int uid : uids) { |
| mNetdEventListenerService.onWakeupEvent(prefix, uid, uid, now); |
| } |
| |
| String[] events2 = listNetdEvent(); |
| int expectedLength2 = uids.length + 1; // +1 for the WakeupStats line |
| assertEquals(expectedLength2, events2.length); |
| assertContains(events2[0], "WakeupStats"); |
| assertContains(events2[0], "wlan0"); |
| for (int i = 0; i < uids.length; i++) { |
| String got = events2[i+1]; |
| assertContains(got, "WakeupEvent"); |
| assertContains(got, "wlan0"); |
| assertContains(got, "uid: " + uids[i]); |
| } |
| |
| int uid = 20000; |
| for (int i = 0; i < BUFFER_LENGTH * 2; i++) { |
| long ts = now + 10; |
| mNetdEventListenerService.onWakeupEvent(prefix, uid, uid, ts); |
| } |
| |
| String[] events3 = listNetdEvent(); |
| int expectedLength3 = BUFFER_LENGTH + 1; // +1 for the WakeupStats line |
| assertEquals(expectedLength3, events3.length); |
| assertContains(events2[0], "WakeupStats"); |
| assertContains(events2[0], "wlan0"); |
| for (int i = 1; i < expectedLength3; i++) { |
| String got = events3[i]; |
| assertContains(got, "WakeupEvent"); |
| assertContains(got, "wlan0"); |
| assertContains(got, "uid: " + uid); |
| } |
| |
| uid = 45678; |
| mNetdEventListenerService.onWakeupEvent(prefix, uid, uid, now); |
| |
| String[] events4 = listNetdEvent(); |
| String lastEvent = events4[events4.length - 1]; |
| assertContains(lastEvent, "WakeupEvent"); |
| assertContains(lastEvent, "wlan0"); |
| assertContains(lastEvent, "uid: " + uid); |
| } |
| |
| @Test |
| public void testWakeupStatsLogging() throws Exception { |
| wakeupEvent("wlan0", 1000); |
| wakeupEvent("rmnet0", 10123); |
| wakeupEvent("wlan0", 1000); |
| wakeupEvent("rmnet0", 10008); |
| wakeupEvent("wlan0", -1); |
| wakeupEvent("wlan0", 10008); |
| wakeupEvent("rmnet0", 1000); |
| wakeupEvent("wlan0", 10004); |
| wakeupEvent("wlan0", 1000); |
| wakeupEvent("wlan0", 0); |
| wakeupEvent("wlan0", -1); |
| wakeupEvent("rmnet0", 10052); |
| wakeupEvent("wlan0", 0); |
| wakeupEvent("rmnet0", 1000); |
| wakeupEvent("wlan0", 1010); |
| |
| String got = flushStatistics(); |
| String want = String.join("\n", |
| "dropped_events: 0", |
| "events <", |
| " if_name: \"\"", |
| " link_layer: 2", |
| " network_id: 0", |
| " time_ms: 0", |
| " transports: 0", |
| " wakeup_stats <", |
| " application_wakeups: 3", |
| " duration_sec: 0", |
| " no_uid_wakeups: 0", |
| " non_application_wakeups: 0", |
| " root_wakeups: 0", |
| " system_wakeups: 2", |
| " total_wakeups: 5", |
| " >", |
| ">", |
| "events <", |
| " if_name: \"\"", |
| " link_layer: 4", |
| " network_id: 0", |
| " time_ms: 0", |
| " transports: 0", |
| " wakeup_stats <", |
| " application_wakeups: 2", |
| " duration_sec: 0", |
| " no_uid_wakeups: 2", |
| " non_application_wakeups: 1", |
| " root_wakeups: 2", |
| " system_wakeups: 3", |
| " total_wakeups: 10", |
| " >", |
| ">", |
| "version: 2\n"); |
| assertEquals(want, got); |
| } |
| |
| @Test |
| public void testDnsLogging() throws Exception { |
| asyncDump(100); |
| |
| dnsEvent(100, EVENT_GETADDRINFO, 0, 3456); |
| dnsEvent(100, EVENT_GETADDRINFO, 0, 267); |
| dnsEvent(100, EVENT_GETHOSTBYNAME, 22, 1230); |
| dnsEvent(100, EVENT_GETADDRINFO, 3, 45); |
| dnsEvent(100, EVENT_GETADDRINFO, 1, 2111); |
| dnsEvent(100, EVENT_GETADDRINFO, 0, 450); |
| dnsEvent(100, EVENT_GETHOSTBYNAME, 200, 638); |
| dnsEvent(100, EVENT_GETHOSTBYNAME, 178, 1300); |
| dnsEvent(101, EVENT_GETADDRINFO, 0, 56); |
| dnsEvent(101, EVENT_GETADDRINFO, 0, 78); |
| dnsEvent(101, EVENT_GETADDRINFO, 0, 14); |
| dnsEvent(101, EVENT_GETHOSTBYNAME, 0, 56); |
| dnsEvent(101, EVENT_GETADDRINFO, 0, 78); |
| dnsEvent(101, EVENT_GETADDRINFO, 0, 14); |
| |
| String got = flushStatistics(); |
| String want = String.join("\n", |
| "dropped_events: 0", |
| "events <", |
| " if_name: \"\"", |
| " link_layer: 4", |
| " network_id: 100", |
| " time_ms: 0", |
| " transports: 2", |
| " dns_lookup_batch <", |
| " event_types: 1", |
| " event_types: 1", |
| " event_types: 2", |
| " event_types: 1", |
| " event_types: 1", |
| " event_types: 1", |
| " event_types: 2", |
| " event_types: 2", |
| " getaddrinfo_error_count: 0", |
| " getaddrinfo_query_count: 0", |
| " gethostbyname_error_count: 0", |
| " gethostbyname_query_count: 0", |
| " latencies_ms: 3456", |
| " latencies_ms: 267", |
| " latencies_ms: 1230", |
| " latencies_ms: 45", |
| " latencies_ms: 2111", |
| " latencies_ms: 450", |
| " latencies_ms: 638", |
| " latencies_ms: 1300", |
| " return_codes: 0", |
| " return_codes: 0", |
| " return_codes: 22", |
| " return_codes: 3", |
| " return_codes: 1", |
| " return_codes: 0", |
| " return_codes: 200", |
| " return_codes: 178", |
| " >", |
| ">", |
| "events <", |
| " if_name: \"\"", |
| " link_layer: 2", |
| " network_id: 101", |
| " time_ms: 0", |
| " transports: 1", |
| " dns_lookup_batch <", |
| " event_types: 1", |
| " event_types: 1", |
| " event_types: 1", |
| " event_types: 2", |
| " event_types: 1", |
| " event_types: 1", |
| " getaddrinfo_error_count: 0", |
| " getaddrinfo_query_count: 0", |
| " gethostbyname_error_count: 0", |
| " gethostbyname_query_count: 0", |
| " latencies_ms: 56", |
| " latencies_ms: 78", |
| " latencies_ms: 14", |
| " latencies_ms: 56", |
| " latencies_ms: 78", |
| " latencies_ms: 14", |
| " return_codes: 0", |
| " return_codes: 0", |
| " return_codes: 0", |
| " return_codes: 0", |
| " return_codes: 0", |
| " return_codes: 0", |
| " >", |
| ">", |
| "version: 2\n"); |
| assertEquals(want, got); |
| } |
| |
| @Test |
| public void testConnectLogging() throws Exception { |
| asyncDump(100); |
| |
| final int OK = 0; |
| Thread[] logActions = { |
| // ignored |
| connectEventAction(100, OsConstants.EALREADY, 0, EXAMPLE_IPV4), |
| connectEventAction(100, OsConstants.EALREADY, 0, EXAMPLE_IPV6), |
| connectEventAction(100, OsConstants.EINPROGRESS, 0, EXAMPLE_IPV4), |
| connectEventAction(101, OsConstants.EINPROGRESS, 0, EXAMPLE_IPV6), |
| connectEventAction(101, OsConstants.EINPROGRESS, 0, EXAMPLE_IPV6), |
| // valid latencies |
| connectEventAction(100, OK, 110, EXAMPLE_IPV4), |
| connectEventAction(100, OK, 23, EXAMPLE_IPV4), |
| connectEventAction(100, OK, 45, EXAMPLE_IPV4), |
| connectEventAction(101, OK, 56, EXAMPLE_IPV4), |
| connectEventAction(101, OK, 523, EXAMPLE_IPV6), |
| connectEventAction(101, OK, 214, EXAMPLE_IPV6), |
| connectEventAction(101, OK, 67, EXAMPLE_IPV6), |
| // errors |
| connectEventAction(100, OsConstants.EPERM, 0, EXAMPLE_IPV4), |
| connectEventAction(101, OsConstants.EPERM, 0, EXAMPLE_IPV4), |
| connectEventAction(100, OsConstants.EAGAIN, 0, EXAMPLE_IPV4), |
| connectEventAction(100, OsConstants.EACCES, 0, EXAMPLE_IPV4), |
| connectEventAction(101, OsConstants.EACCES, 0, EXAMPLE_IPV4), |
| connectEventAction(101, OsConstants.EACCES, 0, EXAMPLE_IPV6), |
| connectEventAction(100, OsConstants.EADDRINUSE, 0, EXAMPLE_IPV4), |
| connectEventAction(101, OsConstants.ETIMEDOUT, 0, EXAMPLE_IPV4), |
| connectEventAction(100, OsConstants.ETIMEDOUT, 0, EXAMPLE_IPV6), |
| connectEventAction(100, OsConstants.ETIMEDOUT, 0, EXAMPLE_IPV6), |
| connectEventAction(101, OsConstants.ECONNREFUSED, 0, EXAMPLE_IPV4), |
| }; |
| |
| for (Thread t : logActions) { |
| t.start(); |
| } |
| for (Thread t : logActions) { |
| t.join(); |
| } |
| |
| String got = flushStatistics(); |
| String want = String.join("\n", |
| "dropped_events: 0", |
| "events <", |
| " if_name: \"\"", |
| " link_layer: 4", |
| " network_id: 100", |
| " time_ms: 0", |
| " transports: 2", |
| " connect_statistics <", |
| " connect_blocking_count: 3", |
| " connect_count: 6", |
| " errnos_counters <", |
| " key: 1", |
| " value: 1", |
| " >", |
| " errnos_counters <", |
| " key: 11", |
| " value: 1", |
| " >", |
| " errnos_counters <", |
| " key: 13", |
| " value: 1", |
| " >", |
| " errnos_counters <", |
| " key: 98", |
| " value: 1", |
| " >", |
| " errnos_counters <", |
| " key: 110", |
| " value: 2", |
| " >", |
| " ipv6_addr_count: 1", |
| " latencies_ms: 23", |
| " latencies_ms: 45", |
| " latencies_ms: 110", |
| " >", |
| ">", |
| "events <", |
| " if_name: \"\"", |
| " link_layer: 2", |
| " network_id: 101", |
| " time_ms: 0", |
| " transports: 1", |
| " connect_statistics <", |
| " connect_blocking_count: 4", |
| " connect_count: 6", |
| " errnos_counters <", |
| " key: 1", |
| " value: 1", |
| " >", |
| " errnos_counters <", |
| " key: 13", |
| " value: 2", |
| " >", |
| " errnos_counters <", |
| " key: 110", |
| " value: 1", |
| " >", |
| " errnos_counters <", |
| " key: 111", |
| " value: 1", |
| " >", |
| " ipv6_addr_count: 5", |
| " latencies_ms: 56", |
| " latencies_ms: 67", |
| " latencies_ms: 214", |
| " latencies_ms: 523", |
| " >", |
| ">", |
| "version: 2\n"); |
| assertEquals(want, got); |
| } |
| |
| Thread connectEventAction(int netId, int error, int latencyMs, String ipAddr) { |
| return new Thread(() -> { |
| try { |
| mNetdEventListenerService.onConnectEvent(netId, error, latencyMs, ipAddr, 80, 1); |
| } catch (Exception e) { |
| fail(e.toString()); |
| } |
| }); |
| } |
| |
| void dnsEvent(int netId, int type, int result, int latency) throws Exception { |
| mNetdEventListenerService.onDnsEvent(netId, type, result, latency, "", null, 0, 0); |
| } |
| |
| void wakeupEvent(String iface, int uid) throws Exception { |
| String prefix = NetdEventListenerService.WAKEUP_EVENT_IFACE_PREFIX + iface; |
| mNetdEventListenerService.onWakeupEvent(prefix, uid, uid, 0); |
| } |
| |
| void asyncDump(long durationMs) throws Exception { |
| final long stop = System.currentTimeMillis() + durationMs; |
| final PrintWriter pw = new PrintWriter(new FileOutputStream("/dev/null")); |
| new Thread(() -> { |
| while (System.currentTimeMillis() < stop) { |
| mNetdEventListenerService.dump(pw); |
| } |
| }).start(); |
| } |
| |
| // TODO: instead of comparing textpb to textpb, parse textpb and compare proto to proto. |
| String flushStatistics() throws Exception { |
| IpConnectivityMetrics metricsService = |
| new IpConnectivityMetrics(mock(Context.class), (ctx) -> 2000); |
| metricsService.mNetdListener = mNetdEventListenerService; |
| |
| StringWriter buffer = new StringWriter(); |
| PrintWriter writer = new PrintWriter(buffer); |
| metricsService.impl.dump(null, writer, new String[]{"flush"}); |
| byte[] bytes = Base64.decode(buffer.toString(), Base64.DEFAULT); |
| IpConnectivityLog log = IpConnectivityLog.parseFrom(bytes); |
| for (IpConnectivityEvent ev : log.events) { |
| if (ev.getConnectStatistics() == null) { |
| continue; |
| } |
| // Sort repeated fields of connect() events arriving in non-deterministic order. |
| Arrays.sort(ev.getConnectStatistics().latenciesMs); |
| Arrays.sort(ev.getConnectStatistics().errnosCounters, |
| Comparator.comparingInt((p) -> p.key)); |
| } |
| return log.toString(); |
| } |
| |
| String[] listNetdEvent() throws Exception { |
| StringWriter buffer = new StringWriter(); |
| PrintWriter writer = new PrintWriter(buffer); |
| mNetdEventListenerService.list(writer); |
| return buffer.toString().split("\\n"); |
| } |
| |
| static void assertContains(String got, String want) { |
| assertTrue(got + " did not contain \"" + want + "\"", got.contains(want)); |
| } |
| } |
