StrictMode.java revision 62a1eb58bfafe8744d7a65f651e11b88fdb0938d
1438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick/* 2438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * Copyright (C) 2010 The Android Open Source Project 3438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 4438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * Licensed under the Apache License, Version 2.0 (the "License"); 5438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * you may not use this file except in compliance with the License. 6438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * You may obtain a copy of the License at 7438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 8438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * http://www.apache.org/licenses/LICENSE-2.0 9438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 10438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * Unless required by applicable law or agreed to in writing, software 11438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * distributed under the License is distributed on an "AS IS" BASIS, 12438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * See the License for the specific language governing permissions and 14438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * limitations under the License. 15438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 16438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickpackage android.os; 17438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 18438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport android.app.ActivityManagerNative; 19438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport android.app.ApplicationErrorReport; 20438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport android.util.Log; 21cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrickimport android.util.Printer; 22438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 23438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport com.android.internal.os.RuntimeInit; 24438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 25438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickimport dalvik.system.BlockGuard; 26438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 275b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrickimport java.io.PrintWriter; 285b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrickimport java.io.StringWriter; 295b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrickimport java.util.ArrayList; 3046d42387464a651268648659e91d022566d4844cBrad Fitzpatrickimport java.util.HashMap; 3146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 32438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick/** 3332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>StrictMode is a developer tool which detects things you might be 3432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * doing by accident and brings them to your attention so you can fix 3532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * them. 3615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 3715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p>StrictMode is most commonly used to catch accidental disk or 3815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * network access on the application's main thread, where UI 3915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * operations are received and animations take place. Keeping disk 4015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * and network operations off the main thread makes for much smoother, 419fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * more responsive applications. By keeping your application's main thread 429fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * responsive, you also prevent 439fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * <a href="{@docRoot}guide/practices/design/responsiveness.html">ANR dialogs</a> 449fc2fc5757a3d28d098bd2b0ad0f869a3cf3fa14Brad Fitzpatrick * from being shown to users. 4515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 4615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p class="note">Note that even though an Android device's disk is 4715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * often on flash memory, many devices run a filesystem on top of that 4815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * memory with very limited concurrency. It's often the case that 4915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * almost all disk accesses are fast, but may in individual cases be 5015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * dramatically slower when certain I/O is happening in the background 5115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * from other processes. If possible, it's best to assume that such 5215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * things are not fast.</p> 5315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 5415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p>Example code to enable from early in your 5515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.app.Application}, {@link android.app.Activity}, or 5615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * other application component's 5715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.app.Application#onCreate} method: 5815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 5915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <pre> 6015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * public void onCreate() { 6115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * if (DEVELOPER_MODE) { 6232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setThreadPolicy(new {@link ThreadPolicy.Builder StrictMode.ThreadPolicy.Builder}() 6332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectDiskReads() 6432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectDiskWrites() 6532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectNetwork() // or .detectAll() for all detectable problems 6632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 6732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build()); 6832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setVmPolicy(new {@link VmPolicy.Builder StrictMode.VmPolicy.Builder}() 6962a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * .detectLeakedSqlLiteObjects() 7032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 7132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyDeath() 7232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build()); 7315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * } 7415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * super.onCreate(); 7515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * } 7615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * </pre> 7715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 7832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can decide what should happen when a violation is detected. 7932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * For example, using {@link ThreadPolicy.Builder#penaltyLog} you can 8032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * watch the output of <code>adb logcat</code> while you use your 8132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * application to see the violations as they happen. 8215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 8315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p>If you find violations that you feel are problematic, there are 8415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * a variety of tools to help solve them: threads, {@link android.os.Handler}, 8515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.os.AsyncTask}, {@link android.app.IntentService}, etc. 8615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * But don't feel compelled to fix everything that StrictMode finds. In particular, 8732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * many cases of disk access are often necessary during the normal activity lifecycle. Use 8832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode to find things you did by accident. Network requests on the UI thread 8915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * are almost always a problem, though. 9015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 9115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * <p class="note">StrictMode is not a security mechanism and is not 9215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * guaranteed to find all disk or network accesses. While it does 9315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * propagate its state across process boundaries when doing 9415ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * {@link android.os.Binder} calls, it's still ultimately a best 9515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * effort mechanism. Notably, disk or network access from JNI calls 9615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * won't necessarily trigger it. Future versions of Android may catch 9715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * more (or fewer) operations, so you should never leave StrictMode 9815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * enabled in shipping applications on the Android Market. 99438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 100438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrickpublic final class StrictMode { 101438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private static final String TAG = "StrictMode"; 1025b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static final boolean LOG_V = false; 103438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 10446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Only log a duplicate stack trace to the logs every second. 10546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick private static final long MIN_LOG_INTERVAL_MS = 1000; 10646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 10746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Only show an annoying dialog at most every 30 seconds 10846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick private static final long MIN_DIALOG_INTERVAL_MS = 30000; 10946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 110191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick // How many offending stacks to keep track of (and time) per loop 111191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick // of the Looper. 112191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static final int MAX_OFFENSES_PER_LOOP = 10; 113191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 11432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Thread-policy: 115438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 11615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick /** 11732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 11815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick */ 11932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final int DETECT_DISK_WRITE = 0x01; // for ThreadPolicy 12015ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick 12115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick /** 12232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 12315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick */ 12432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final int DETECT_DISK_READ = 0x02; // for ThreadPolicy 12515ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick 12615ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick /** 12732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 12815ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick */ 12932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final int DETECT_NETWORK = 0x04; // for ThreadPolicy 130438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 13132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Process-policy: 132438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 133438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 13432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Note, a "VM_" bit, not thread. 13532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 13632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 13732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final int DETECT_VM_CURSOR_LEAKS = 0x200; // for ProcessPolicy 13832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 13932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 14032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 141438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 142438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_LOG = 0x10; // normal android.util.Log 143438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 14432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Used for both process and thread policy: 14532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 146438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 14732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 148438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 149438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_DIALOG = 0x20; 150438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 151438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 15232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 153438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 154438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_DEATH = 0x40; 155438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 156438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 15732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 158438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 159438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public static final int PENALTY_DROPBOX = 0x80; 160438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 161727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick /** 162727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * Non-public penalty mode which overrides all the other penalty 163727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * bits and signals that we're in a Binder call and we should 164727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * ignore the other penalty bits and instead serialize back all 165727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * our offending stack traces to the caller to ultimately handle 166727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * in the originating process. 167727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * 168703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * This must be kept in sync with the constant in libs/binder/Parcel.cpp 169703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * 170727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * @hide 171727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick */ 172727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick public static final int PENALTY_GATHER = 0x100; 173727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 17432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 17532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The current VmPolicy in effect. 17632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 17732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private static volatile int sVmPolicyMask = 0; 17832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 17932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private StrictMode() {} 18032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 18132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 18232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link StrictMode} policy applied to a certain thread. 18332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 18432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>The policy is enabled by {@link #setThreadPolicy}. The current policy 18532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can be retrieved with {@link #getThreadPolicy}. 18632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 18732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note that multiple penalties may be provided and they're run 18832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * in order from least to most severe (logging before process 18932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * death, for example). There's currently no mechanism to choose 19032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * different penalties for different detected actions. 19132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 19232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class ThreadPolicy { 19332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 19432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The default, lax policy which doesn't catch anything. 19532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 19632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final ThreadPolicy LAX = new ThreadPolicy(0); 19732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 19832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int mask; 19932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 20032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private ThreadPolicy(int mask) { 20132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick this.mask = mask; 20232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 20332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 20432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick @Override 20532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public String toString() { 20632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return "[StrictMode.ThreadPolicy; mask=" + mask + "]"; 20732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 20832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 20932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 21032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Creates ThreadPolicy instances. Methods whose names start 21132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@code detect} specify what problems we should look 21232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * for. Methods whose names start with {@code penalty} specify what 21332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * we should do when we detect a problem. 21432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 21532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can call as many {@code detect} and {@code penalty} 21632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * methods as you like. Currently order is insignificant: all 21732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * penalties apply to all detected problems. 21832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 21932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>For example, detect everything and log anything that's found: 22032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <pre> 22132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.VmPolicy policy = new StrictMode.VmPolicy.Builder() 22232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectAll() 22332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 22432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build(); 22532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setVmPolicy(policy); 22632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * </pre> 22732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 22832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class Builder { 22932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private int mMask = 0; 23032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 23132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 23232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Create a Builder that detects nothing and has no 23332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violations. (but note that {@link #build} will default 23432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to enabling {@link #penaltyLog} if no other penalties 23532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * are specified) 23632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 23732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder() { 23832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask = 0; 23932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 24032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 24132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 24232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Initialize a Builder from an existing ThreadPolicy. 24332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 24432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder(ThreadPolicy policy) { 24532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask = policy.mask; 24632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 24732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 24832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 24932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect everything that's potentially suspect. 25032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 25132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>As of the Gingerbread release this includes network and 25232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * disk operations but will likely expand in future releases. 25332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 25432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectAll() { 25532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_DISK_WRITE | DETECT_DISK_READ | DETECT_NETWORK); 25632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 25732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 25832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 25932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable the detection of everything. 26032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 26132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitAll() { 26232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_DISK_WRITE | DETECT_DISK_READ | DETECT_NETWORK); 26332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 26432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 26532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 26632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of network operations. 26732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 26832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectNetwork() { 26932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_NETWORK); 27032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 27132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 27232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 27332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of network operations. 27432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 27532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitNetwork() { 27632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_NETWORK); 27732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 27832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 27932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 28032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of disk reads. 28132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 28232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectDiskReads() { 28332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_DISK_READ); 28432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 28532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 28632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 28732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of disk reads. 28832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 28932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitDiskReads() { 29032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_DISK_READ); 29132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 29232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 29332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 29432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detection of disk writes. 29532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 29632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectDiskWrites() { 29732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_DISK_WRITE); 29832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 29932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 30032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 30132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Disable detection of disk writes. 30232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 30332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder permitDiskWrites() { 30432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return disable(DETECT_DISK_WRITE); 30532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 30632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 30732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 30832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Show an annoying dialog to the developer on detected 30932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violations, rate-limited to be only a little annoying. 31032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 31132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDialog() { 31232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DIALOG); 31332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 31432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 31532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 31632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Crash the whole process on violation. This penalty runs at 31732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * the end of all enabled penalties so you'll still get 31832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * see logging or other violations before the process dies. 31932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 32032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDeath() { 32132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DEATH); 32232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 32332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 32432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 32532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Log detected violations to the system log. 32632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 32732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyLog() { 32832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_LOG); 32932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 33032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 33132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 33232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detected violations log a stacktrace and timing data 33332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to the {@link android.os.DropBoxManager DropBox} on policy 33432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violation. Intended mostly for platform integrators doing 33532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * beta user field data collection. 33632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 33732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDropBox() { 33832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DROPBOX); 33932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 34032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 34132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder enable(int bit) { 34232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask |= bit; 34332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 34432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 34532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 34632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder disable(int bit) { 34732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask &= ~bit; 34832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 34932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 35032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 35132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 35232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Construct the ThreadPolicy instance. 35332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 35432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note: if no penalties are enabled before calling 35532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <code>build</code>, {@link #penaltyLog} is implicitly 35632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * set. 35732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 35832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public ThreadPolicy build() { 35932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // If there are detection bits set but no violation bits 36032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // set, enable simple logging. 36132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (mMask != 0 && 36232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick (mMask & (PENALTY_DEATH | PENALTY_LOG | 36332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick PENALTY_DROPBOX | PENALTY_DIALOG)) == 0) { 36432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick penaltyLog(); 36532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 36632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(mMask); 36732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 36832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 36932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 37032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 37132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 37232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link StrictMode} policy applied to all threads in the virtual machine's process. 37332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 37432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>The policy is enabled by {@link #setVmPolicy}. 37532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 37632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class VmPolicy { 37732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 37832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * The default, lax policy which doesn't catch anything. 37932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 38032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final VmPolicy LAX = new VmPolicy(0); 38132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 38232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int mask; 38332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 38432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private VmPolicy(int mask) { 38532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick this.mask = mask; 38632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 38732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 38832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick @Override 38932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public String toString() { 39032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return "[StrictMode.VmPolicy; mask=" + mask + "]"; 39132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 39232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 39332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 39432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Creates {@link VmPolicy} instances. Methods whose names start 39532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@code detect} specify what problems we should look 39632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * for. Methods whose names start with {@code penalty} specify what 39732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * we should do when we detect a problem. 39832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 39932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You can call as many {@code detect} and {@code penalty} 40032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * methods as you like. Currently order is insignificant: all 40132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * penalties apply to all detected problems. 40232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 40332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>For example, detect everything and log anything that's found: 40432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <pre> 40532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.VmPolicy policy = new StrictMode.VmPolicy.Builder() 40632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .detectAll() 40732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .penaltyLog() 40832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * .build(); 40932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * StrictMode.setVmPolicy(policy); 41032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * </pre> 41132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 41232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static final class Builder { 41332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private int mMask; 41432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 41532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 41632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect everything that's potentially suspect. 41732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 41832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>As of the Gingerbread release this only includes 41932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * SQLite cursor leaks but will likely expand in future 42032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * releases. 42132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 42232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectAll() { 42332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_VM_CURSOR_LEAKS); 42432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 42532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 42632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 42732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Detect when an 42832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link android.database.sqlite.SQLiteCursor} or other 42932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * SQLite object is finalized without having been closed. 43032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 43132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>You always want to explicitly close your SQLite 43232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * cursors to avoid unnecessary database contention and 43332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * temporary memory leaks. 43432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 43532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder detectLeakedSqlLiteObjects() { 43632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(DETECT_VM_CURSOR_LEAKS); 43732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 43832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 43932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 44032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Crashes the whole process on violation. This penalty runs at 44132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * the end of all enabled penalties so yo you'll still get 44232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * your logging or other violations before the process dies. 44332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 44432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDeath() { 44532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DEATH); 44632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 44732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 44832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 44932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Log detected violations to the system log. 45032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 45132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyLog() { 45232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_LOG); 45332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 45432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 45532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 45632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Enable detected violations log a stacktrace and timing data 45732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to the {@link android.os.DropBoxManager DropBox} on policy 45832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * violation. Intended mostly for platform integrators doing 45932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * beta user field data collection. 46032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 46132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public Builder penaltyDropBox() { 46232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return enable(PENALTY_DROPBOX); 46332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 46432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 46532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private Builder enable(int bit) { 46632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick mMask |= bit; 46732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return this; 46832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 46932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 47032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 47132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Construct the VmPolicy instance. 47232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 47332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Note: if no penalties are enabled before calling 47432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <code>build</code>, {@link #penaltyLog} is implicitly 47532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * set. 47632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 47732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public VmPolicy build() { 47832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // If there are detection bits set but no violation bits 47932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // set, enable simple logging. 48032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (mMask != 0 && 48132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick (mMask & (PENALTY_DEATH | PENALTY_LOG | 48232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick PENALTY_DROPBOX | PENALTY_DIALOG)) == 0) { 48332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick penaltyLog(); 48432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 48532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new VmPolicy(mMask); 48632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 48732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 48832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 489438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 490438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 4915b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Log of strict mode violation stack traces that have occurred 4925b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * during a Binder call, to be serialized back later to the caller 4935b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * via Parcel.writeNoException() (amusingly) where the caller can 4945b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * choose how to react. 4955b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 496cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick private static final ThreadLocal<ArrayList<ViolationInfo>> gatheredViolations = 497cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick new ThreadLocal<ArrayList<ViolationInfo>>() { 498cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick @Override protected ArrayList<ViolationInfo> initialValue() { 499703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // Starts null to avoid unnecessary allocations when 500703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // checking whether there are any violations or not in 501703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick // hasGatheredViolations() below. 502703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick return null; 5035b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 5045b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick }; 5055b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 5065b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 50732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Sets the policy for what actions on the current thread should 50832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * be detected, as well as the penalty if such actions occur. 50915ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * 51032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * <p>Internally this sets a thread-local variable which is 51115ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * propagated across cross-process IPC calls, meaning you can 51215ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * catch violations when a system service or another process 51315ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * accesses the disk or network on your behalf. 514438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 51532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @param policy the policy to put into place 516438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 51732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void setThreadPolicy(final ThreadPolicy policy) { 51832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(policy.mask); 51932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 52032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 52132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick private static void setThreadPolicyMask(final int policyMask) { 522727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // In addition to the Java-level thread-local in Dalvik's 523727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // BlockGuard, we also need to keep a native thread-local in 524727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Binder in order to propagate the value across Binder calls, 525727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // even across native-only processes. The two are kept in 526727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // sync via the callback to onStrictModePolicyChange, below. 527727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick setBlockGuardPolicy(policyMask); 528727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 529727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // And set the Android native version... 530727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick Binder.setThreadStrictModePolicy(policyMask); 531727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 532727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 533727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Sets the policy in Dalvik/libcore (BlockGuard) 534727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick private static void setBlockGuardPolicy(final int policyMask) { 53546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick if (policyMask == 0) { 53646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick BlockGuard.setThreadPolicy(BlockGuard.LAX_POLICY); 53746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick return; 53846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 539438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 540438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick if (!(policy instanceof AndroidBlockGuardPolicy)) { 541438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick BlockGuard.setThreadPolicy(new AndroidBlockGuardPolicy(policyMask)); 542438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } else { 543438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick AndroidBlockGuardPolicy androidPolicy = (AndroidBlockGuardPolicy) policy; 544438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick androidPolicy.setPolicyMask(policyMask); 545438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 546438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 547438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 5485b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static class StrictModeNetworkViolation extends BlockGuard.BlockGuardPolicyException { 5495b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeNetworkViolation(int policyMask) { 55032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick super(policyMask, DETECT_NETWORK); 5515b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 5525b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 5535b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 5545b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static class StrictModeDiskReadViolation extends BlockGuard.BlockGuardPolicyException { 5555b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeDiskReadViolation(int policyMask) { 55632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick super(policyMask, DETECT_DISK_READ); 5575b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 5585b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 5595b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 5605b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static class StrictModeDiskWriteViolation extends BlockGuard.BlockGuardPolicyException { 5615b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public StrictModeDiskWriteViolation(int policyMask) { 56232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick super(policyMask, DETECT_DISK_WRITE); 5635b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 5645b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 5655b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 566438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick /** 56715ba4061116e088d62a7e05a0037f294f31dff06Brad Fitzpatrick * Returns the bitmask of the current thread's policy. 568438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick * 56932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the bitmask of all the DETECT_* and PENALTY_* bits currently enabled 57032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 57132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 572438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick */ 57332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static int getThreadPolicyMask() { 574438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return BlockGuard.getThreadPolicy().getPolicyMask(); 575438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 576438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 5775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 57832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Returns the current thread's policy. 57932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 58032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy getThreadPolicy() { 58132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(getThreadPolicyMask()); 58232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 58332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 58432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 58532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * A convenience wrapper that takes the current 58632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link ThreadPolicy} from {@link #getThreadPolicy}, modifies it 58732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to permit both disk reads & writes, and sets the new policy 58832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@link #setThreadPolicy}, returning the old policy so you 58932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can restore it at the end of a block. 59097461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * 59132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the old policy, to be passed to {@link #setThreadPolicy} to 59232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * restore the policy at the end of a block 59397461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick */ 59432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy allowThreadDiskWrites() { 59532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int oldPolicyMask = getThreadPolicyMask(); 59632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int newPolicyMask = oldPolicyMask & ~(DETECT_DISK_WRITE | DETECT_DISK_READ); 59732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (newPolicyMask != oldPolicyMask) { 59832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(newPolicyMask); 59997461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 60032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(oldPolicyMask); 60197461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 60297461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick 60397461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick /** 60432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * A convenience wrapper that takes the current 60532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * {@link ThreadPolicy} from {@link #getThreadPolicy}, modifies it 60632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * to permit disk reads, and sets the new policy 60732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * with {@link #setThreadPolicy}, returning the old policy so you 60832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * can restore it at the end of a block. 60997461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * 61032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @return the old policy, to be passed to setThreadPolicy to 61197461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick * restore the policy. 61297461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick */ 61332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static ThreadPolicy allowThreadDiskReads() { 61432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int oldPolicyMask = getThreadPolicyMask(); 61532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int newPolicyMask = oldPolicyMask & ~(DETECT_DISK_READ); 61632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if (newPolicyMask != oldPolicyMask) { 61732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(newPolicyMask); 61897461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 61932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new ThreadPolicy(oldPolicyMask); 62097461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick } 62197461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick 62297461bd25c3821f3fb6af9705f0612259c6b4492Brad Fitzpatrick /** 62350d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * Enable DropBox logging for debug phone builds. 62450d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * 62550d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick * @hide 62650d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick */ 62750d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick public static boolean conditionallyEnableDebugLogging() { 62850d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick // For debug builds, log event loop stalls to dropbox for analysis. 62950d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick // Similar logic also appears in ActivityThread.java for system apps. 63050d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick if ("user".equals(Build.TYPE)) { 63150d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick return false; 63250d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick } 63332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick StrictMode.setThreadPolicyMask( 63432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick StrictMode.DETECT_DISK_WRITE | 63532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick StrictMode.DETECT_DISK_READ | 63632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick StrictMode.DETECT_NETWORK | 63750d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick StrictMode.PENALTY_DROPBOX); 63832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick sVmPolicyMask = StrictMode.DETECT_VM_CURSOR_LEAKS | 63932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick StrictMode.PENALTY_DROPBOX | 64032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick StrictMode.PENALTY_LOG; 64150d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick return true; 64250d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick } 64350d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick 64450d66f9fcdac84b2af65a82be56728f54b1a7ef0Brad Fitzpatrick /** 6455b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Parses the BlockGuard policy mask out from the Exception's 6465b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * getMessage() String value. Kinda gross, but least 6475b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * invasive. :/ 6485b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * 6495b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Input is of form "policy=137 violation=64" 6505b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * 6515b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Returns 0 on failure, which is a valid policy, but not a 6525b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * valid policy during a violation (else there must've been 6535b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * some policy in effect to violate). 6545b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 6555b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static int parsePolicyFromMessage(String message) { 6565b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (message == null || !message.startsWith("policy=")) { 6575b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 6585b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 6595b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int spaceIndex = message.indexOf(' '); 6605b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (spaceIndex == -1) { 6615b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 6625b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 6635b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick String policyString = message.substring(7, spaceIndex); 6645b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick try { 6655b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return Integer.valueOf(policyString).intValue(); 6665b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } catch (NumberFormatException e) { 6675b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 6685b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 6695b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 6705b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 6715b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 6725b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Like parsePolicyFromMessage(), but returns the violation. 6735b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 6745b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static int parseViolationFromMessage(String message) { 6755b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (message == null) { 6765b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 6775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 6785b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int violationIndex = message.indexOf("violation="); 6795b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (violationIndex == -1) { 6805b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 6815b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 6825b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick String violationString = message.substring(violationIndex + 10); 6835b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick try { 6845b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return Integer.valueOf(violationString).intValue(); 6855b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } catch (NumberFormatException e) { 6865b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return 0; 6875b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 6885b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 6895b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 690191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static final ThreadLocal<ArrayList<ViolationInfo>> violationsBeingTimed = 691191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick new ThreadLocal<ArrayList<ViolationInfo>>() { 692191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick @Override protected ArrayList<ViolationInfo> initialValue() { 693191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return new ArrayList<ViolationInfo>(); 694191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 695191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick }; 696191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 697191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick private static boolean tooManyViolationsThisLoop() { 698191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return violationsBeingTimed.get().size() >= MAX_OFFENSES_PER_LOOP; 699191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 700191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick 701438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private static class AndroidBlockGuardPolicy implements BlockGuard.Policy { 702438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick private int mPolicyMask; 70346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 70446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Map from violation stacktrace hashcode -> uptimeMillis of 70546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // last violation. No locking needed, as this is only 70646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // accessed by the same thread. 70746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick private final HashMap<Integer, Long> mLastViolationTime = new HashMap<Integer, Long>(); 708438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 709438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public AndroidBlockGuardPolicy(final int policyMask) { 710438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick mPolicyMask = policyMask; 711438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 712438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 7135b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick @Override 7145b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick public String toString() { 7155b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return "AndroidBlockGuardPolicy; mPolicyMask=" + mPolicyMask; 7165b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 7175b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 718438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 719438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public int getPolicyMask() { 720438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return mPolicyMask; 721438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 722438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 723438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 724438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onWriteToDisk() { 72532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_DISK_WRITE) == 0) { 726438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 727438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 728191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 729191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 730191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 731cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeDiskWriteViolation(mPolicyMask); 732cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 733cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 734438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 735438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 736438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 737438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onReadFromDisk() { 73832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_DISK_READ) == 0) { 739438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 740438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 741191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 742191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 743191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 744cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeDiskReadViolation(mPolicyMask); 745cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 746cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 747438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 748438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 749438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick // Part of BlockGuard.Policy interface: 750438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void onNetwork() { 75132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((mPolicyMask & DETECT_NETWORK) == 0) { 752438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick return; 753438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 754191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (tooManyViolationsThisLoop()) { 755191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick return; 756191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick } 757cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick BlockGuard.BlockGuardPolicyException e = new StrictModeNetworkViolation(mPolicyMask); 758cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick e.fillInStackTrace(); 759cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick startHandlingViolationException(e); 760438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 761438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 762438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick public void setPolicyMask(int policyMask) { 763438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick mPolicyMask = policyMask; 764438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 765438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 7665b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Start handling a violation that just started and hasn't 7675b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // actually run yet (e.g. no disk write or network operation 7685b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // has yet occurred). This sees if we're in an event loop 7695b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // thread and, if so, uses it to roughly measure how long the 7705b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // violation took. 7715b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick void startHandlingViolationException(BlockGuard.BlockGuardPolicyException e) { 772cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick final ViolationInfo info = new ViolationInfo(e, e.getPolicy()); 773cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.violationUptimeMillis = SystemClock.uptimeMillis(); 774cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolationWithTimingAttempt(info); 775cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 776438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 777cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Attempts to fill in the provided ViolationInfo's 778cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // durationMillis field if this thread has a Looper we can use 779cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // to measure with. We measure from the time of violation 780cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // until the time the looper is idle again (right before 781cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // the next epoll_wait) 782cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick void handleViolationWithTimingAttempt(final ViolationInfo info) { 783438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick Looper looper = Looper.myLooper(); 784cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 785cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Without a Looper, we're unable to time how long the 786cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // violation takes place. This case should be rare, as 787cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // most users will care about timing violations that 788cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // happen on their main UI thread. Note that this case is 789cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // also hit when a violation takes place in a Binder 790cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // thread, in "gather" mode. In this case, the duration 791cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // of the violation is computed by the ultimate caller and 792cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // its Looper, if any. 793cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // TODO: if in gather mode, ignore Looper.myLooper() and always 794cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // go into this immediate mode? 795438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick if (looper == null) { 796cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.durationMillis = -1; // unknown (redundant, already set) 797cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolation(info); 798cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 799438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 800438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 801cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick MessageQueue queue = Looper.myQueue(); 802cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick final ArrayList<ViolationInfo> records = violationsBeingTimed.get(); 803191cdf023c3c1ab441087a77f7881c7bb376613aBrad Fitzpatrick if (records.size() >= MAX_OFFENSES_PER_LOOP) { 804cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // Not worth measuring. Too many offenses in one loop. 805cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 806cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 807cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick records.add(info); 808cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (records.size() > 1) { 809cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // There's already been a violation this loop, so we've already 810cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // registered an idle handler to process the list of violations 811cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick // at the end of this Looper's loop. 812cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return; 813cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 814cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 815cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick queue.addIdleHandler(new MessageQueue.IdleHandler() { 816cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public boolean queueIdle() { 817cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick long loopFinishTime = SystemClock.uptimeMillis(); 818cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick for (int n = 0; n < records.size(); ++n) { 819cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ViolationInfo v = records.get(n); 820cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick v.violationNumThisLoop = n + 1; 821cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick v.durationMillis = 822cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick (int) (loopFinishTime - v.violationUptimeMillis); 823cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick handleViolation(v); 824cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 825cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick records.clear(); 826cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick return false; // remove this idle handler from the array 827cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 828cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick }); 8295b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 830438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 8315b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Note: It's possible (even quite likely) that the 8325b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // thread-local policy mask has changed from the time the 8335b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // violation fired and now (after the violating code ran) due 8345b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // to people who push/pop temporary policy in regions of code, 8355b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // hence the policy being passed around. 836cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick void handleViolation(final ViolationInfo info) { 837cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info == null || info.crashInfo == null || info.crashInfo.stackTrace == null) { 838cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick Log.wtf(TAG, "unexpected null stacktrace"); 8395b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 8405b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 841438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 842cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (LOG_V) Log.d(TAG, "handleViolation; policy=" + info.policy); 84346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 844cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_GATHER) != 0) { 845cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ArrayList<ViolationInfo> violations = gatheredViolations.get(); 846703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (violations == null) { 847cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violations = new ArrayList<ViolationInfo>(1); 848703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(violations); 849703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } else if (violations.size() >= 5) { 8505b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Too many. In a loop or something? Don't gather them all. 8515b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 8525b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 853cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick for (ViolationInfo previous : violations) { 854cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info.crashInfo.stackTrace.equals(previous.crashInfo.stackTrace)) { 8555b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Duplicate. Don't log. 8565b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick return; 8575b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 8585b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 859cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violations.add(info); 860727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick return; 861727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 862727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 86346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // Not perfect, but fast and good enough for dup suppression. 864cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick Integer crashFingerprint = info.crashInfo.stackTrace.hashCode(); 86546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long lastViolationTime = 0; 86646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick if (mLastViolationTime.containsKey(crashFingerprint)) { 86746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick lastViolationTime = mLastViolationTime.get(crashFingerprint); 86846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 86946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long now = SystemClock.uptimeMillis(); 87046d42387464a651268648659e91d022566d4844cBrad Fitzpatrick mLastViolationTime.put(crashFingerprint, now); 87146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick long timeSinceLastViolationMillis = lastViolationTime == 0 ? 87246d42387464a651268648659e91d022566d4844cBrad Fitzpatrick Long.MAX_VALUE : (now - lastViolationTime); 87346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 874cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_LOG) != 0 && 87546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick timeSinceLastViolationMillis > MIN_LOG_INTERVAL_MS) { 876cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (info.durationMillis != -1) { 8775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick Log.d(TAG, "StrictMode policy violation; ~duration=" + 878cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.durationMillis + " ms: " + info.crashInfo.stackTrace); 879438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } else { 880cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick Log.d(TAG, "StrictMode policy violation: " + info.crashInfo.stackTrace); 881438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 882438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 883438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 88446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // The violationMask, passed to ActivityManager, is a 88546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // subset of the original StrictMode policy bitmask, with 88646d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // only the bit violated and penalty bits to be executed 88746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick // by the ActivityManagerService remaining set. 888cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int violationMaskSubset = 0; 88946d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 890cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DIALOG) != 0 && 89146d42387464a651268648659e91d022566d4844cBrad Fitzpatrick timeSinceLastViolationMillis > MIN_DIALOG_INTERVAL_MS) { 892cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= PENALTY_DIALOG; 89346d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 89446d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 895cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DROPBOX) != 0 && lastViolationTime == 0) { 896cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= PENALTY_DROPBOX; 89746d42387464a651268648659e91d022566d4844cBrad Fitzpatrick } 89846d42387464a651268648659e91d022566d4844cBrad Fitzpatrick 899cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (violationMaskSubset != 0) { 900cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int violationBit = parseViolationFromMessage(info.crashInfo.exceptionMessage); 901cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset |= violationBit; 90232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int savedPolicyMask = getThreadPolicyMask(); 903438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick try { 904727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // First, remove any policy before we call into the Activity Manager, 905727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // otherwise we'll infinite recurse as we try to log policy violations 906727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // to disk, thus violating policy, thus requiring logging, etc... 907727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // We restore the current policy below, in the finally block. 90832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(0); 909727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 910438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick ActivityManagerNative.getDefault().handleApplicationStrictModeViolation( 911438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick RuntimeInit.getApplicationObject(), 912cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationMaskSubset, 913cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info); 914438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } catch (RemoteException e) { 91546d42387464a651268648659e91d022566d4844cBrad Fitzpatrick Log.e(TAG, "RemoteException trying to handle StrictMode violation", e); 916727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } finally { 917727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick // Restore the policy. 91832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(savedPolicyMask); 919438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 920438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 921438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick 922cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if ((info.policy & PENALTY_DEATH) != 0) { 923438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick System.err.println("StrictMode policy violation with POLICY_DEATH; shutting down."); 924438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick Process.killProcess(Process.myPid()); 925438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick System.exit(10); 926438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 927438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 928438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick } 929727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick 930727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick /** 9315b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.writeNoException() 9325b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 9335b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static boolean hasGatheredViolations() { 934703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick return gatheredViolations.get() != null; 935703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } 936703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick 937703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick /** 938703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * Called from Parcel.writeException(), so we drop this memory and 939703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * don't incorrectly attribute it to the wrong caller on the next 940703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick * Binder call on this thread. 941703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick */ 942703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick /* package */ static void clearGatheredViolations() { 943703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(null); 9445b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 9455b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 9465b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 94732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Sets the policy for what actions in the VM process (on any 94832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * thread) should be detected, as well as the penalty if such 94932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * actions occur. 95032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * 95132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @param policy the policy to put into place 95232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 95332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void setVmPolicy(final VmPolicy policy) { 95432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick sVmPolicyMask = policy.mask; 95532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 95632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 95732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 95832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * Gets the current VM policy. 95932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 96032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static VmPolicy getVmPolicy() { 96132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return new VmPolicy(sVmPolicyMask); 96232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 96332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 96432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 96562a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * Enable the recommended StrictMode defaults, with violations just being logged. 96662a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * 96762a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * <p>This catches disk and network access on the main thread, as 96862a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * well as leaked SQLite cursors. This is simply a wrapper around 96962a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick * {@link #setVmPolicy} and {@link #setThreadPolicy}. 97062a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick */ 97162a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick public static void enableDefaults() { 97262a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick StrictMode.setThreadPolicy(new StrictMode.ThreadPolicy.Builder() 97362a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .detectAll() 97462a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .penaltyLog() 97562a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .build()); 97662a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick StrictMode.setVmPolicy(new StrictMode.VmPolicy.Builder() 97762a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .detectLeakedSqlLiteObjects() 97862a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .penaltyLog() 97962a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick .build()); 98062a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick } 98162a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick 98262a1eb58bfafe8744d7a65f651e11b88fdb0938dBrad Fitzpatrick /** 98332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 98432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 98532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static boolean vmSqliteObjectLeaksEnabled() { 98632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick return (sVmPolicyMask & DETECT_VM_CURSOR_LEAKS) != 0; 98732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 98832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 98932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 99032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick * @hide 99132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick */ 99232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick public static void onSqliteObjectLeaked(String message, Throwable originStack) { 99332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((sVmPolicyMask & PENALTY_LOG) != 0) { 99432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick Log.e(TAG, message, originStack); 99532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 99632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 99732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((sVmPolicyMask & PENALTY_DROPBOX) != 0) { 99832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final ViolationInfo info = new ViolationInfo(originStack, sVmPolicyMask); 99932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 100032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // The violationMask, passed to ActivityManager, is a 100132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // subset of the original StrictMode policy bitmask, with 100232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // only the bit violated and penalty bits to be executed 100332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // by the ActivityManagerService remaining set. 100432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int violationMaskSubset = PENALTY_DROPBOX | DETECT_VM_CURSOR_LEAKS; 100532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick final int savedPolicyMask = getThreadPolicyMask(); 100632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick try { 100732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // First, remove any policy before we call into the Activity Manager, 100832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // otherwise we'll infinite recurse as we try to log policy violations 100932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // to disk, thus violating policy, thus requiring logging, etc... 101032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // We restore the current policy below, in the finally block. 101132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(0); 101232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 101332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick ActivityManagerNative.getDefault().handleApplicationStrictModeViolation( 101432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick RuntimeInit.getApplicationObject(), 101532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick violationMaskSubset, 101632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick info); 101732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } catch (RemoteException e) { 101832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick Log.e(TAG, "RemoteException trying to handle StrictMode violation", e); 101932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } finally { 102032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick // Restore the policy. 102132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick setThreadPolicyMask(savedPolicyMask); 102232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 102332e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 102432e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 102532e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick if ((sVmPolicyMask & PENALTY_DEATH) != 0) { 102632e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick System.err.println("StrictMode VmPolicy violation with POLICY_DEATH; shutting down."); 102732e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick Process.killProcess(Process.myPid()); 102832e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick System.exit(10); 102932e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 103032e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick } 103132e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick 103232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick /** 10335b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.writeNoException() 10345b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 10355b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static void writeGatheredViolationsToParcel(Parcel p) { 1036cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ArrayList<ViolationInfo> violations = gatheredViolations.get(); 1037703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (violations == null) { 1038703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick p.writeInt(0); 1039703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } else { 1040703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick p.writeInt(violations.size()); 1041703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick for (int i = 0; i < violations.size(); ++i) { 1042703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick violations.get(i).writeToParcel(p, 0 /* unused flags? */); 1043703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick } 1044703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick if (LOG_V) Log.d(TAG, "wrote violations to response parcel; num=" + violations.size()); 1045703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick violations.clear(); // somewhat redundant, as we're about to null the threadlocal 10465b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 1047703e5d3c7fbeb8ca0978045db01d40318f838612Brad Fitzpatrick gatheredViolations.set(null); 10485b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10495b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 10505b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick private static class LogStackTrace extends Exception {} 10515b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 10525b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 10535b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * Called from Parcel.readException() when the exception is EX_STRICT_MODE_VIOLATIONS, 10545b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick * we here read back all the encoded violations. 10555b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick */ 10565b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /* package */ static void readAndHandleBinderCallViolations(Parcel p) { 10575b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick // Our own stack trace to append 10585b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick StringWriter sw = new StringWriter(); 1059cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick new LogStackTrace().printStackTrace(new PrintWriter(sw)); 10605b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick String ourStack = sw.toString(); 10615b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 106232e60c7942eeba920ec5c27b372ec0899fd75a20Brad Fitzpatrick int policyMask = getThreadPolicyMask(); 1063cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick boolean currentlyGathering = (policyMask & PENALTY_GATHER) != 0; 10645b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 10655b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick int numViolations = p.readInt(); 10665b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick for (int i = 0; i < numViolations; ++i) { 10675b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (LOG_V) Log.d(TAG, "strict mode violation stacks read from binder call. i=" + i); 1068cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ViolationInfo info = new ViolationInfo(p, !currentlyGathering); 1069cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick info.crashInfo.stackTrace += "# via Binder call with stack:\n" + ourStack; 10705b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick BlockGuard.Policy policy = BlockGuard.getThreadPolicy(); 10715b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick if (policy instanceof AndroidBlockGuardPolicy) { 1072cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick ((AndroidBlockGuardPolicy) policy).handleViolationWithTimingAttempt(info); 10735b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10745b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10755b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick } 10765b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick 10775b747191ff8ad43a54d41faf50436271d1d7fcc8Brad Fitzpatrick /** 1078727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * Called from android_util_Binder.cpp's 1079727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * android_os_Parcel_enforceInterface when an incoming Binder call 1080727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * requires changing the StrictMode policy mask. The role of this 1081727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * function is to ask Binder for its current (native) thread-local 1082727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * policy value and synchronize it to libcore's (Java) 1083727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick * thread-local policy value. 1084727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick */ 1085727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick private static void onBinderStrictModePolicyChange(int newPolicy) { 1086727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick setBlockGuardPolicy(newPolicy); 1087727de40c6bc7c6521a0542ea9def5d5c7b1c5e06Brad Fitzpatrick } 1088cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1089cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1090cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Parcelable that gets sent in Binder call headers back to callers 1091cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * to report violations that happened during a cross-process call. 1092cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * 1093cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * @hide 1094cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1095cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public static class ViolationInfo { 1096cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1097cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Stack and other stuff info. 1098cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1099cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public final ApplicationErrorReport.CrashInfo crashInfo; 1100cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1101cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1102cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The strict mode policy mask at the time of violation. 1103cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1104cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public final int policy; 1105cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1106cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1107cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The wall time duration of the violation, when known. -1 when 1108cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * not known. 1109cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1110cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public int durationMillis = -1; 1111cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1112cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1113cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Which violation number this was (1-based) since the last Looper loop, 1114cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * from the perspective of the root caller (if it crossed any processes 1115cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * via Binder calls). The value is 0 if the root caller wasn't on a Looper 1116cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * thread. 1117cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1118cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public int violationNumThisLoop; 1119cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1120cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1121cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * The time (in terms of SystemClock.uptimeMillis()) that the 1122cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * violation occurred. 1123cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1124cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public long violationUptimeMillis; 1125cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1126cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1127cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an uninitialized instance of ViolationInfo 1128cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1129cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo() { 1130cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = null; 1131cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = 0; 1132cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1133cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1134cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1135cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from an exception. 1136cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1137cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Throwable tr, int policy) { 1138cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = new ApplicationErrorReport.CrashInfo(tr); 1139cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationUptimeMillis = SystemClock.uptimeMillis(); 1140cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick this.policy = policy; 1141cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1142cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1143cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1144cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from a Parcel. 1145cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1146cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Parcel in) { 1147cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick this(in, false); 1148cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1149cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1150cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1151cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Create an instance of ViolationInfo initialized from a Parcel. 1152cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * 1153cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * @param unsetGatheringBit if true, the caller is the root caller 1154cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * and the gathering penalty should be removed. 1155cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1156cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public ViolationInfo(Parcel in, boolean unsetGatheringBit) { 1157cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo = new ApplicationErrorReport.CrashInfo(in); 1158cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick int rawPolicy = in.readInt(); 1159cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (unsetGatheringBit) { 1160cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = rawPolicy & ~PENALTY_GATHER; 1161cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } else { 1162cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick policy = rawPolicy; 1163cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1164cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick durationMillis = in.readInt(); 1165cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationNumThisLoop = in.readInt(); 1166cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick violationUptimeMillis = in.readLong(); 1167cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1168cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1169cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1170cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Save a ViolationInfo instance to a parcel. 1171cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1172cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public void writeToParcel(Parcel dest, int flags) { 1173cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo.writeToParcel(dest, flags); 1174cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(policy); 1175cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(durationMillis); 1176cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeInt(violationNumThisLoop); 1177cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick dest.writeLong(violationUptimeMillis); 1178cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1179cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1180cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1181cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick /** 1182cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick * Dump a ViolationInfo instance to a Printer. 1183cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick */ 1184cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick public void dump(Printer pw, String prefix) { 1185cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick crashInfo.dump(pw, prefix); 1186cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "policy: " + policy); 1187cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (durationMillis != -1) { 1188cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "durationMillis: " + durationMillis); 1189cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1190cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick if (violationNumThisLoop != 0) { 1191cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "violationNumThisLoop: " + violationNumThisLoop); 1192cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1193cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick pw.println(prefix + "violationUptimeMillis: " + violationUptimeMillis); 1194cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1195cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick 1196cb9ceb1029036363a81952d8ed5dfcbc83e6ff72Brad Fitzpatrick } 1197438d0595121a7a2cdf19741e76e3c0e21a5c173dBrad Fitzpatrick} 1198