bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package com.android.server; |
| 18 | |
| 19 | import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyBoolean; |
| 20 | import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyInt; |
| 21 | import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyLong; |
| 22 | import static com.android.dx.mockito.inline.extended.ExtendedMockito.anyString; |
| 23 | import static com.android.dx.mockito.inline.extended.ExtendedMockito.doAnswer; |
| 24 | import static com.android.dx.mockito.inline.extended.ExtendedMockito.doReturn; |
| 25 | import static com.android.dx.mockito.inline.extended.ExtendedMockito.verify; |
| 26 | import static com.android.dx.mockito.inline.extended.ExtendedMockito.when; |
| 27 | |
| 28 | import static org.junit.Assert.assertEquals; |
| 29 | import static org.junit.Assert.assertTrue; |
| 30 | import static org.mockito.ArgumentMatchers.eq; |
| 31 | import static org.mockito.ArgumentMatchers.isNull; |
| 32 | |
| 33 | import android.content.ContentResolver; |
| 34 | import android.content.Context; |
| 35 | import android.os.RecoverySystem; |
| 36 | import android.os.SystemProperties; |
| 37 | import android.os.UserHandle; |
bpetrivs | 93075f4 | 2019-02-28 12:08:12 +0000 | [diff] [blame] | 38 | import android.provider.DeviceConfig; |
bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 39 | import android.provider.Settings; |
| 40 | |
| 41 | import com.android.dx.mockito.inline.extended.ExtendedMockito; |
bpetrivs | 93075f4 | 2019-02-28 12:08:12 +0000 | [diff] [blame] | 42 | import com.android.server.am.SettingsToPropertiesMapper; |
| 43 | import com.android.server.utils.FlagNamespaceUtils; |
bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 44 | |
| 45 | import org.junit.After; |
| 46 | import org.junit.Before; |
| 47 | import org.junit.Test; |
| 48 | import org.mockito.Answers; |
| 49 | import org.mockito.Mock; |
| 50 | import org.mockito.MockitoSession; |
| 51 | import org.mockito.quality.Strictness; |
| 52 | import org.mockito.stubbing.Answer; |
| 53 | |
| 54 | import java.util.HashMap; |
| 55 | |
| 56 | /** |
| 57 | * Test RescueParty. |
| 58 | */ |
| 59 | public class RescuePartyTest { |
| 60 | private static final int PERSISTENT_APP_UID = 12; |
| 61 | private static final long CURRENT_NETWORK_TIME_MILLIS = 0L; |
bpetrivs | 93075f4 | 2019-02-28 12:08:12 +0000 | [diff] [blame] | 62 | private static final String FAKE_NATIVE_NAMESPACE1 = "native1"; |
| 63 | private static final String FAKE_NATIVE_NAMESPACE2 = "native2"; |
| 64 | private static final String[] FAKE_RESET_NATIVE_NAMESPACES = |
| 65 | {FAKE_NATIVE_NAMESPACE1, FAKE_NATIVE_NAMESPACE2}; |
bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 66 | |
| 67 | private MockitoSession mSession; |
| 68 | |
| 69 | @Mock(answer = Answers.RETURNS_DEEP_STUBS) |
| 70 | private Context mMockContext; |
| 71 | |
| 72 | @Mock(answer = Answers.RETURNS_DEEP_STUBS) |
| 73 | private ContentResolver mMockContentResolver; |
| 74 | |
| 75 | private HashMap<String, String> mSystemSettingsMap; |
| 76 | |
| 77 | @Before |
| 78 | public void setUp() throws Exception { |
| 79 | mSession = |
| 80 | ExtendedMockito.mockitoSession().initMocks( |
| 81 | this) |
| 82 | .strictness(Strictness.LENIENT) |
bpetrivs | 93075f4 | 2019-02-28 12:08:12 +0000 | [diff] [blame] | 83 | .spyStatic(DeviceConfig.class) |
bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 84 | .spyStatic(SystemProperties.class) |
| 85 | .spyStatic(Settings.Global.class) |
| 86 | .spyStatic(Settings.Secure.class) |
bpetrivs | 93075f4 | 2019-02-28 12:08:12 +0000 | [diff] [blame] | 87 | .spyStatic(SettingsToPropertiesMapper.class) |
bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 88 | .spyStatic(RecoverySystem.class) |
| 89 | .spyStatic(RescueParty.class) |
| 90 | .startMocking(); |
| 91 | mSystemSettingsMap = new HashMap<>(); |
| 92 | |
| 93 | when(mMockContext.getContentResolver()).thenReturn(mMockContentResolver); |
| 94 | |
| 95 | |
| 96 | // Mock SystemProperties setter and various getters |
| 97 | doAnswer((Answer<Void>) invocationOnMock -> { |
| 98 | String key = invocationOnMock.getArgument(0); |
| 99 | String value = invocationOnMock.getArgument(1); |
| 100 | |
| 101 | mSystemSettingsMap.put(key, value); |
| 102 | return null; |
| 103 | } |
| 104 | ).when(() -> SystemProperties.set(anyString(), anyString())); |
| 105 | |
| 106 | doAnswer((Answer<Boolean>) invocationOnMock -> { |
| 107 | String key = invocationOnMock.getArgument(0); |
| 108 | boolean defaultValue = invocationOnMock.getArgument(1); |
| 109 | |
| 110 | String storedValue = mSystemSettingsMap.get(key); |
| 111 | return storedValue == null ? defaultValue : Boolean.parseBoolean(storedValue); |
| 112 | } |
| 113 | ).when(() -> SystemProperties.getBoolean(anyString(), anyBoolean())); |
| 114 | |
| 115 | doAnswer((Answer<Integer>) invocationOnMock -> { |
| 116 | String key = invocationOnMock.getArgument(0); |
| 117 | int defaultValue = invocationOnMock.getArgument(1); |
| 118 | |
| 119 | String storedValue = mSystemSettingsMap.get(key); |
| 120 | return storedValue == null ? defaultValue : Integer.parseInt(storedValue); |
| 121 | } |
| 122 | ).when(() -> SystemProperties.getInt(anyString(), anyInt())); |
| 123 | |
| 124 | doAnswer((Answer<Long>) invocationOnMock -> { |
| 125 | String key = invocationOnMock.getArgument(0); |
| 126 | long defaultValue = invocationOnMock.getArgument(1); |
| 127 | |
| 128 | String storedValue = mSystemSettingsMap.get(key); |
| 129 | return storedValue == null ? defaultValue : Long.parseLong(storedValue); |
| 130 | } |
| 131 | ).when(() -> SystemProperties.getLong(anyString(), anyLong())); |
| 132 | |
bpetrivs | 93075f4 | 2019-02-28 12:08:12 +0000 | [diff] [blame] | 133 | // Mock DeviceConfig |
| 134 | doAnswer((Answer<Boolean>) invocationOnMock -> true) |
| 135 | .when(() -> DeviceConfig.setProperty(anyString(), anyString(), anyString(), |
| 136 | anyBoolean())); |
| 137 | doAnswer((Answer<Void>) invocationOnMock -> null) |
| 138 | .when(() -> DeviceConfig.resetToDefaults(anyInt(), anyString())); |
| 139 | |
| 140 | |
bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 141 | doReturn(CURRENT_NETWORK_TIME_MILLIS).when(() -> RescueParty.getElapsedRealtime()); |
| 142 | RescueParty.resetAllThresholds(); |
bpetrivs | 93075f4 | 2019-02-28 12:08:12 +0000 | [diff] [blame] | 143 | FlagNamespaceUtils.resetKnownResetNamespacesFlagCounterForTest(); |
bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 144 | |
| 145 | SystemProperties.set(RescueParty.PROP_RESCUE_LEVEL, |
| 146 | Integer.toString(RescueParty.LEVEL_NONE)); |
| 147 | SystemProperties.set(RescueParty.PROP_RESCUE_BOOT_COUNT, Integer.toString(0)); |
| 148 | SystemProperties.set(RescueParty.PROP_ENABLE_RESCUE, Boolean.toString(true)); |
| 149 | } |
| 150 | |
| 151 | @After |
| 152 | public void tearDown() throws Exception { |
| 153 | mSession.finishMocking(); |
| 154 | } |
| 155 | |
| 156 | @Test |
| 157 | public void testBootLoopDetectionWithExecutionForAllRescueLevels() { |
| 158 | noteBoot(RescueParty.TRIGGER_COUNT); |
| 159 | |
| 160 | verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_DEFAULTS); |
| 161 | assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_DEFAULTS, |
| 162 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 163 | |
| 164 | noteBoot(RescueParty.TRIGGER_COUNT); |
| 165 | |
| 166 | verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_CHANGES); |
| 167 | assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_CHANGES, |
| 168 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 169 | |
| 170 | noteBoot(RescueParty.TRIGGER_COUNT); |
| 171 | |
| 172 | verifySettingsResets(Settings.RESET_MODE_TRUSTED_DEFAULTS); |
| 173 | assertEquals(RescueParty.LEVEL_RESET_SETTINGS_TRUSTED_DEFAULTS, |
| 174 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 175 | |
| 176 | noteBoot(RescueParty.TRIGGER_COUNT); |
| 177 | |
| 178 | verify(() -> RecoverySystem.rebootPromptAndWipeUserData(mMockContext, RescueParty.TAG)); |
| 179 | assertEquals(RescueParty.LEVEL_FACTORY_RESET, |
| 180 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 181 | } |
| 182 | |
| 183 | @Test |
| 184 | public void testPersistentAppCrashDetectionWithExecutionForAllRescueLevels() { |
| 185 | notePersistentAppCrash(RescueParty.TRIGGER_COUNT); |
| 186 | |
| 187 | verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_DEFAULTS); |
| 188 | assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_DEFAULTS, |
| 189 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 190 | |
| 191 | notePersistentAppCrash(RescueParty.TRIGGER_COUNT); |
| 192 | |
| 193 | verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_CHANGES); |
| 194 | assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_CHANGES, |
| 195 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 196 | |
| 197 | notePersistentAppCrash(RescueParty.TRIGGER_COUNT); |
| 198 | |
| 199 | verifySettingsResets(Settings.RESET_MODE_TRUSTED_DEFAULTS); |
| 200 | assertEquals(RescueParty.LEVEL_RESET_SETTINGS_TRUSTED_DEFAULTS, |
| 201 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 202 | |
| 203 | notePersistentAppCrash(RescueParty.TRIGGER_COUNT); |
| 204 | |
| 205 | verify(() -> RecoverySystem.rebootPromptAndWipeUserData(mMockContext, RescueParty.TAG)); |
| 206 | assertEquals(RescueParty.LEVEL_FACTORY_RESET, |
| 207 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 208 | } |
| 209 | |
| 210 | @Test |
| 211 | public void testBootLoopDetectionWithWrongInterval() { |
| 212 | noteBoot(RescueParty.TRIGGER_COUNT - 1); |
| 213 | |
| 214 | // last boot is just outside of the boot loop detection window |
| 215 | doReturn(CURRENT_NETWORK_TIME_MILLIS + RescueParty.BOOT_TRIGGER_WINDOW_MILLIS + 1).when( |
| 216 | () -> RescueParty.getElapsedRealtime()); |
| 217 | noteBoot(/*numTimes=*/1); |
| 218 | |
| 219 | assertEquals(RescueParty.LEVEL_NONE, |
| 220 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 221 | } |
| 222 | |
| 223 | @Test |
| 224 | public void testPersistentAppCrashDetectionWithWrongInterval() { |
| 225 | notePersistentAppCrash(RescueParty.TRIGGER_COUNT - 1); |
| 226 | |
| 227 | // last persistent app crash is just outside of the boot loop detection window |
| 228 | doReturn(CURRENT_NETWORK_TIME_MILLIS |
| 229 | + RescueParty.PERSISTENT_APP_CRASH_TRIGGER_WINDOW_MILLIS + 1) |
| 230 | .when(() -> RescueParty.getElapsedRealtime()); |
| 231 | notePersistentAppCrash(/*numTimes=*/1); |
| 232 | |
| 233 | assertEquals(RescueParty.LEVEL_NONE, |
| 234 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 235 | } |
| 236 | |
| 237 | @Test |
| 238 | public void testBootLoopDetectionWithProperInterval() { |
| 239 | noteBoot(RescueParty.TRIGGER_COUNT - 1); |
| 240 | |
| 241 | // last boot is just inside of the boot loop detection window |
| 242 | doReturn(CURRENT_NETWORK_TIME_MILLIS + RescueParty.BOOT_TRIGGER_WINDOW_MILLIS).when( |
| 243 | () -> RescueParty.getElapsedRealtime()); |
| 244 | noteBoot(/*numTimes=*/1); |
| 245 | |
| 246 | verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_DEFAULTS); |
| 247 | assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_DEFAULTS, |
| 248 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 249 | } |
| 250 | |
| 251 | @Test |
| 252 | public void testPersistentAppCrashDetectionWithProperInterval() { |
| 253 | notePersistentAppCrash(RescueParty.TRIGGER_COUNT - 1); |
| 254 | |
| 255 | // last persistent app crash is just inside of the boot loop detection window |
| 256 | doReturn(CURRENT_NETWORK_TIME_MILLIS |
| 257 | + RescueParty.PERSISTENT_APP_CRASH_TRIGGER_WINDOW_MILLIS) |
| 258 | .when(() -> RescueParty.getElapsedRealtime()); |
| 259 | notePersistentAppCrash(/*numTimes=*/1); |
| 260 | |
| 261 | verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_DEFAULTS); |
| 262 | assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_DEFAULTS, |
| 263 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 264 | } |
| 265 | |
| 266 | @Test |
| 267 | public void testBootLoopDetectionWithWrongTriggerCount() { |
| 268 | noteBoot(RescueParty.TRIGGER_COUNT - 1); |
| 269 | assertEquals(RescueParty.LEVEL_NONE, |
| 270 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 271 | } |
| 272 | |
| 273 | @Test |
| 274 | public void testPersistentAppCrashDetectionWithWrongTriggerCount() { |
| 275 | notePersistentAppCrash(RescueParty.TRIGGER_COUNT - 1); |
| 276 | assertEquals(RescueParty.LEVEL_NONE, |
| 277 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 278 | } |
| 279 | |
| 280 | @Test |
| 281 | public void testIsAttemptingFactoryReset() { |
| 282 | noteBoot(RescueParty.TRIGGER_COUNT * 4); |
| 283 | |
| 284 | verify(() -> RecoverySystem.rebootPromptAndWipeUserData(mMockContext, RescueParty.TAG)); |
| 285 | assertTrue(RescueParty.isAttemptingFactoryReset()); |
| 286 | } |
| 287 | |
| 288 | @Test |
| 289 | public void testOnSettingsProviderPublishedExecutesRescueLevels() { |
| 290 | SystemProperties.set(RescueParty.PROP_RESCUE_LEVEL, Integer.toString(1)); |
| 291 | |
| 292 | RescueParty.onSettingsProviderPublished(mMockContext); |
| 293 | |
| 294 | verifySettingsResets(Settings.RESET_MODE_UNTRUSTED_DEFAULTS); |
| 295 | assertEquals(RescueParty.LEVEL_RESET_SETTINGS_UNTRUSTED_DEFAULTS, |
| 296 | SystemProperties.getInt(RescueParty.PROP_RESCUE_LEVEL, RescueParty.LEVEL_NONE)); |
| 297 | } |
| 298 | |
bpetrivs | 93075f4 | 2019-02-28 12:08:12 +0000 | [diff] [blame] | 299 | @Test |
| 300 | public void testNativeRescuePartyResets() { |
| 301 | doReturn(true).when(() -> SettingsToPropertiesMapper.isNativeFlagsResetPerformed()); |
| 302 | doReturn(FAKE_RESET_NATIVE_NAMESPACES).when( |
| 303 | () -> SettingsToPropertiesMapper.getResetNativeCategories()); |
| 304 | |
| 305 | RescueParty.onSettingsProviderPublished(mMockContext); |
| 306 | |
| 307 | verify(() -> DeviceConfig.resetToDefaults(Settings.RESET_MODE_TRUSTED_DEFAULTS, |
| 308 | FAKE_NATIVE_NAMESPACE1)); |
| 309 | verify(() -> DeviceConfig.resetToDefaults(Settings.RESET_MODE_TRUSTED_DEFAULTS, |
| 310 | FAKE_NATIVE_NAMESPACE2)); |
| 311 | |
| 312 | ExtendedMockito.verify( |
| 313 | () -> DeviceConfig.setProperty(FlagNamespaceUtils.NAMESPACE_RESCUE_PARTY, |
| 314 | FlagNamespaceUtils.RESET_PLATFORM_PACKAGE_FLAG + 0, |
| 315 | FAKE_NATIVE_NAMESPACE1, /*makeDefault=*/true)); |
| 316 | ExtendedMockito.verify( |
| 317 | () -> DeviceConfig.setProperty(FlagNamespaceUtils.NAMESPACE_RESCUE_PARTY, |
| 318 | FlagNamespaceUtils.RESET_PLATFORM_PACKAGE_FLAG + 1, |
| 319 | FAKE_NATIVE_NAMESPACE2, /*makeDefault=*/true)); |
| 320 | } |
| 321 | |
bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 322 | private void verifySettingsResets(int resetMode) { |
| 323 | verify(() -> Settings.Global.resetToDefaultsAsUser(mMockContentResolver, null, |
bpetrivs | 93075f4 | 2019-02-28 12:08:12 +0000 | [diff] [blame] | 324 | resetMode, UserHandle.USER_SYSTEM)); |
bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 325 | verify(() -> Settings.Secure.resetToDefaultsAsUser(eq(mMockContentResolver), isNull(), |
| 326 | eq(resetMode), anyInt())); |
| 327 | } |
| 328 | |
| 329 | private void noteBoot(int numTimes) { |
| 330 | for (int i = 0; i < numTimes; i++) { |
| 331 | RescueParty.noteBoot(mMockContext); |
| 332 | } |
| 333 | } |
| 334 | |
| 335 | private void notePersistentAppCrash(int numTimes) { |
| 336 | for (int i = 0; i < numTimes; i++) { |
bpetrivs | 0254ff6 | 2019-03-01 11:50:45 +0000 | [diff] [blame] | 337 | RescueParty.noteAppCrash(mMockContext, PERSISTENT_APP_UID); |
bpetrivs | a710195 | 2019-02-07 16:01:24 +0000 | [diff] [blame] | 338 | } |
| 339 | } |
| 340 | } |