1 /* 2 * Copyright (C) 2006 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.am; 18 19 import com.android.internal.app.ProcessStats; 20 import com.android.internal.os.BatteryStatsImpl; 21 import com.android.server.LocalServices; 22 import com.android.server.notification.NotificationManagerInternal; 23 24 import android.app.INotificationManager; 25 import android.app.Notification; 26 import android.app.NotificationManager; 27 import android.app.PendingIntent; 28 import android.content.ComponentName; 29 import android.content.Context; 30 import android.content.Intent; 31 import android.content.pm.ApplicationInfo; 32 import android.content.pm.PackageManager; 33 import android.content.pm.ServiceInfo; 34 import android.net.Uri; 35 import android.os.Binder; 36 import android.os.IBinder; 37 import android.os.RemoteException; 38 import android.os.SystemClock; 39 import android.os.UserHandle; 40 import android.provider.Settings; 41 import android.util.ArrayMap; 42 import android.util.Slog; 43 import android.util.TimeUtils; 44 45 import java.io.PrintWriter; 46 import java.util.ArrayList; 47 import java.util.List; 48 import java.util.Objects; 49 50 /** 51 * A running application service. 52 */ 53 final class ServiceRecord extends Binder { 54 // Maximum number of delivery attempts before giving up. 55 static final int MAX_DELIVERY_COUNT = 3; 56 57 // Maximum number of times it can fail during execution before giving up. 58 static final int MAX_DONE_EXECUTING_COUNT = 6; 59 60 final ActivityManagerService ams; 61 final BatteryStatsImpl.Uid.Pkg.Serv stats; 62 final ComponentName name; // service component. 63 final String shortName; // name.flattenToShortString(). 64 final Intent.FilterComparison intent; 65 // original intent used to find service. 66 final ServiceInfo serviceInfo; 67 // all information about the service. 68 final ApplicationInfo appInfo; 69 // information about service's app. 70 final int userId; // user that this service is running as 71 final String packageName; // the package implementing intent's component 72 final String processName; // process where this component wants to run 73 final String permission;// permission needed to access service 74 final boolean exported; // from ServiceInfo.exported 75 final Runnable restarter; // used to schedule retries of starting the service 76 final long createTime; // when this service was created 77 final ArrayMap<Intent.FilterComparison, IntentBindRecord> bindings 78 = new ArrayMap<Intent.FilterComparison, IntentBindRecord>(); 79 // All active bindings to the service. 80 final ArrayMap<IBinder, ArrayList<ConnectionRecord>> connections 81 = new ArrayMap<IBinder, ArrayList<ConnectionRecord>>(); 82 // IBinder -> ConnectionRecord of all bound clients 83 84 ProcessRecord app; // where this service is running or null. 85 ProcessRecord isolatedProc; // keep track of isolated process, if requested 86 ProcessStats.ServiceState tracker; // tracking service execution, may be null 87 ProcessStats.ServiceState restartTracker; // tracking service restart 88 boolean delayed; // are we waiting to start this service in the background? 89 boolean isForeground; // is service currently in foreground mode? 90 int foregroundId; // Notification ID of last foreground req. 91 Notification foregroundNoti; // Notification record of foreground state. 92 long lastActivity; // last time there was some activity on the service. 93 long startingBgTimeout; // time at which we scheduled this for a delayed start. 94 boolean startRequested; // someone explicitly called start? 95 boolean delayedStop; // service has been stopped but is in a delayed start? 96 boolean stopIfKilled; // last onStart() said to stop if service killed? 97 boolean callStart; // last onStart() has asked to alway be called on restart. 98 int executeNesting; // number of outstanding operations keeping foreground. 99 boolean executeFg; // should we be executing in the foreground? 100 long executingStart; // start time of last execute request. 101 boolean createdFromFg; // was this service last created due to a foreground process call? 102 int crashCount; // number of times proc has crashed with service running 103 int totalRestartCount; // number of times we have had to restart. 104 int restartCount; // number of restarts performed in a row. 105 long restartDelay; // delay until next restart attempt. 106 long restartTime; // time of last restart. 107 long nextRestartTime; // time when restartDelay will expire. 108 boolean destroying; // set when we have started destroying the service 109 long destroyTime; // time at which destory was initiated. 110 111 String stringName; // caching of toString 112 113 private int lastStartId; // identifier of most recent start request. 114 115 static class StartItem { 116 final ServiceRecord sr; 117 final boolean taskRemoved; 118 final int id; 119 final Intent intent; 120 final ActivityManagerService.NeededUriGrants neededGrants; 121 long deliveredTime; 122 int deliveryCount; 123 int doneExecutingCount; 124 UriPermissionOwner uriPermissions; 125 126 String stringName; // caching of toString 127 128 StartItem(ServiceRecord _sr, boolean _taskRemoved, int _id, Intent _intent, 129 ActivityManagerService.NeededUriGrants _neededGrants) { 130 sr = _sr; 131 taskRemoved = _taskRemoved; 132 id = _id; 133 intent = _intent; 134 neededGrants = _neededGrants; 135 } 136 137 UriPermissionOwner getUriPermissionsLocked() { 138 if (uriPermissions == null) { 139 uriPermissions = new UriPermissionOwner(sr.ams, this); 140 } 141 return uriPermissions; 142 } 143 144 void removeUriPermissionsLocked() { 145 if (uriPermissions != null) { 146 uriPermissions.removeUriPermissionsLocked(); 147 uriPermissions = null; 148 } 149 } 150 151 public String toString() { 152 if (stringName != null) { 153 return stringName; 154 } 155 StringBuilder sb = new StringBuilder(128); 156 sb.append("ServiceRecord{") 157 .append(Integer.toHexString(System.identityHashCode(sr))) 158 .append(' ').append(sr.shortName) 159 .append(" StartItem ") 160 .append(Integer.toHexString(System.identityHashCode(this))) 161 .append(" id=").append(id).append('}'); 162 return stringName = sb.toString(); 163 } 164 } 165 166 final ArrayList<StartItem> deliveredStarts = new ArrayList<StartItem>(); 167 // start() arguments which been delivered. 168 final ArrayList<StartItem> pendingStarts = new ArrayList<StartItem>(); 169 // start() arguments that haven't yet been delivered. 170 171 void dumpStartList(PrintWriter pw, String prefix, List<StartItem> list, long now) { 172 final int N = list.size(); 173 for (int i=0; i<N; i++) { 174 StartItem si = list.get(i); 175 pw.print(prefix); pw.print("#"); pw.print(i); 176 pw.print(" id="); pw.print(si.id); 177 if (now != 0) { 178 pw.print(" dur="); 179 TimeUtils.formatDuration(si.deliveredTime, now, pw); 180 } 181 if (si.deliveryCount != 0) { 182 pw.print(" dc="); pw.print(si.deliveryCount); 183 } 184 if (si.doneExecutingCount != 0) { 185 pw.print(" dxc="); pw.print(si.doneExecutingCount); 186 } 187 pw.println(""); 188 pw.print(prefix); pw.print(" intent="); 189 if (si.intent != null) pw.println(si.intent.toString()); 190 else pw.println("null"); 191 if (si.neededGrants != null) { 192 pw.print(prefix); pw.print(" neededGrants="); 193 pw.println(si.neededGrants); 194 } 195 if (si.uriPermissions != null) { 196 si.uriPermissions.dump(pw, prefix); 197 } 198 } 199 } 200 201 void dump(PrintWriter pw, String prefix) { 202 pw.print(prefix); pw.print("intent={"); 203 pw.print(intent.getIntent().toShortString(false, true, false, true)); 204 pw.println('}'); 205 pw.print(prefix); pw.print("packageName="); pw.println(packageName); 206 pw.print(prefix); pw.print("processName="); pw.println(processName); 207 if (permission != null) { 208 pw.print(prefix); pw.print("permission="); pw.println(permission); 209 } 210 long now = SystemClock.uptimeMillis(); 211 long nowReal = SystemClock.elapsedRealtime(); 212 if (appInfo != null) { 213 pw.print(prefix); pw.print("baseDir="); pw.println(appInfo.sourceDir); 214 if (!Objects.equals(appInfo.sourceDir, appInfo.publicSourceDir)) { 215 pw.print(prefix); pw.print("resDir="); pw.println(appInfo.publicSourceDir); 216 } 217 pw.print(prefix); pw.print("dataDir="); pw.println(appInfo.dataDir); 218 } 219 pw.print(prefix); pw.print("app="); pw.println(app); 220 if (isolatedProc != null) { 221 pw.print(prefix); pw.print("isolatedProc="); pw.println(isolatedProc); 222 } 223 if (delayed) { 224 pw.print(prefix); pw.print("delayed="); pw.println(delayed); 225 } 226 if (isForeground || foregroundId != 0) { 227 pw.print(prefix); pw.print("isForeground="); pw.print(isForeground); 228 pw.print(" foregroundId="); pw.print(foregroundId); 229 pw.print(" foregroundNoti="); pw.println(foregroundNoti); 230 } 231 pw.print(prefix); pw.print("createTime="); 232 TimeUtils.formatDuration(createTime, nowReal, pw); 233 pw.print(" startingBgTimeout="); 234 TimeUtils.formatDuration(startingBgTimeout, now, pw); 235 pw.println(); 236 pw.print(prefix); pw.print("lastActivity="); 237 TimeUtils.formatDuration(lastActivity, now, pw); 238 pw.print(" restartTime="); 239 TimeUtils.formatDuration(restartTime, now, pw); 240 pw.print(" createdFromFg="); pw.println(createdFromFg); 241 if (startRequested || delayedStop || lastStartId != 0) { 242 pw.print(prefix); pw.print("startRequested="); pw.print(startRequested); 243 pw.print(" delayedStop="); pw.print(delayedStop); 244 pw.print(" stopIfKilled="); pw.print(stopIfKilled); 245 pw.print(" callStart="); pw.print(callStart); 246 pw.print(" lastStartId="); pw.println(lastStartId); 247 } 248 if (executeNesting != 0) { 249 pw.print(prefix); pw.print("executeNesting="); pw.print(executeNesting); 250 pw.print(" executeFg="); pw.print(executeFg); 251 pw.print(" executingStart="); 252 TimeUtils.formatDuration(executingStart, now, pw); 253 pw.println(); 254 } 255 if (destroying || destroyTime != 0) { 256 pw.print(prefix); pw.print("destroying="); pw.print(destroying); 257 pw.print(" destroyTime="); 258 TimeUtils.formatDuration(destroyTime, now, pw); 259 pw.println(); 260 } 261 if (crashCount != 0 || restartCount != 0 262 || restartDelay != 0 || nextRestartTime != 0) { 263 pw.print(prefix); pw.print("restartCount="); pw.print(restartCount); 264 pw.print(" restartDelay="); 265 TimeUtils.formatDuration(restartDelay, now, pw); 266 pw.print(" nextRestartTime="); 267 TimeUtils.formatDuration(nextRestartTime, now, pw); 268 pw.print(" crashCount="); pw.println(crashCount); 269 } 270 if (deliveredStarts.size() > 0) { 271 pw.print(prefix); pw.println("Delivered Starts:"); 272 dumpStartList(pw, prefix, deliveredStarts, now); 273 } 274 if (pendingStarts.size() > 0) { 275 pw.print(prefix); pw.println("Pending Starts:"); 276 dumpStartList(pw, prefix, pendingStarts, 0); 277 } 278 if (bindings.size() > 0) { 279 pw.print(prefix); pw.println("Bindings:"); 280 for (int i=0; i<bindings.size(); i++) { 281 IntentBindRecord b = bindings.valueAt(i); 282 pw.print(prefix); pw.print("* IntentBindRecord{"); 283 pw.print(Integer.toHexString(System.identityHashCode(b))); 284 if ((b.collectFlags()&Context.BIND_AUTO_CREATE) != 0) { 285 pw.append(" CREATE"); 286 } 287 pw.println("}:"); 288 b.dumpInService(pw, prefix + " "); 289 } 290 } 291 if (connections.size() > 0) { 292 pw.print(prefix); pw.println("All Connections:"); 293 for (int conni=0; conni<connections.size(); conni++) { 294 ArrayList<ConnectionRecord> c = connections.valueAt(conni); 295 for (int i=0; i<c.size(); i++) { 296 pw.print(prefix); pw.print(" "); pw.println(c.get(i)); 297 } 298 } 299 } 300 } 301 302 ServiceRecord(ActivityManagerService ams, 303 BatteryStatsImpl.Uid.Pkg.Serv servStats, ComponentName name, 304 Intent.FilterComparison intent, ServiceInfo sInfo, boolean callerIsFg, 305 Runnable restarter) { 306 this.ams = ams; 307 this.stats = servStats; 308 this.name = name; 309 shortName = name.flattenToShortString(); 310 this.intent = intent; 311 serviceInfo = sInfo; 312 appInfo = sInfo.applicationInfo; 313 packageName = sInfo.applicationInfo.packageName; 314 processName = sInfo.processName; 315 permission = sInfo.permission; 316 exported = sInfo.exported; 317 this.restarter = restarter; 318 createTime = SystemClock.elapsedRealtime(); 319 lastActivity = SystemClock.uptimeMillis(); 320 userId = UserHandle.getUserId(appInfo.uid); 321 createdFromFg = callerIsFg; 322 } 323 324 public ProcessStats.ServiceState getTracker() { 325 if (tracker != null) { 326 return tracker; 327 } 328 if ((serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) == 0) { 329 tracker = ams.mProcessStats.getServiceStateLocked(serviceInfo.packageName, 330 serviceInfo.applicationInfo.uid, serviceInfo.applicationInfo.versionCode, 331 serviceInfo.processName, serviceInfo.name); 332 tracker.applyNewOwner(this); 333 } 334 return tracker; 335 } 336 337 public void forceClearTracker() { 338 if (tracker != null) { 339 tracker.clearCurrentOwner(this, true); 340 tracker = null; 341 } 342 } 343 344 public void makeRestarting(int memFactor, long now) { 345 if (restartTracker == null) { 346 if ((serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) == 0) { 347 restartTracker = ams.mProcessStats.getServiceStateLocked(serviceInfo.packageName, 348 serviceInfo.applicationInfo.uid, serviceInfo.applicationInfo.versionCode, 349 serviceInfo.processName, serviceInfo.name); 350 } 351 if (restartTracker == null) { 352 return; 353 } 354 } 355 restartTracker.setRestarting(true, memFactor, now); 356 } 357 358 public AppBindRecord retrieveAppBindingLocked(Intent intent, 359 ProcessRecord app) { 360 Intent.FilterComparison filter = new Intent.FilterComparison(intent); 361 IntentBindRecord i = bindings.get(filter); 362 if (i == null) { 363 i = new IntentBindRecord(this, filter); 364 bindings.put(filter, i); 365 } 366 AppBindRecord a = i.apps.get(app); 367 if (a != null) { 368 return a; 369 } 370 a = new AppBindRecord(this, i, app); 371 i.apps.put(app, a); 372 return a; 373 } 374 375 public boolean hasAutoCreateConnections() { 376 // XXX should probably keep a count of the number of auto-create 377 // connections directly in the service. 378 for (int conni=connections.size()-1; conni>=0; conni--) { 379 ArrayList<ConnectionRecord> cr = connections.valueAt(conni); 380 for (int i=0; i<cr.size(); i++) { 381 if ((cr.get(i).flags&Context.BIND_AUTO_CREATE) != 0) { 382 return true; 383 } 384 } 385 } 386 return false; 387 } 388 389 public void resetRestartCounter() { 390 restartCount = 0; 391 restartDelay = 0; 392 restartTime = 0; 393 } 394 395 public StartItem findDeliveredStart(int id, boolean remove) { 396 final int N = deliveredStarts.size(); 397 for (int i=0; i<N; i++) { 398 StartItem si = deliveredStarts.get(i); 399 if (si.id == id) { 400 if (remove) deliveredStarts.remove(i); 401 return si; 402 } 403 } 404 405 return null; 406 } 407 408 public int getLastStartId() { 409 return lastStartId; 410 } 411 412 public int makeNextStartId() { 413 lastStartId++; 414 if (lastStartId < 1) { 415 lastStartId = 1; 416 } 417 return lastStartId; 418 } 419 420 public void postNotification() { 421 final int appUid = appInfo.uid; 422 final int appPid = app.pid; 423 if (foregroundId != 0 && foregroundNoti != null) { 424 // Do asynchronous communication with notification manager to 425 // avoid deadlocks. 426 final String localPackageName = packageName; 427 final int localForegroundId = foregroundId; 428 final Notification localForegroundNoti = foregroundNoti; 429 ams.mHandler.post(new Runnable() { 430 public void run() { 431 NotificationManagerInternal nm = LocalServices.getService( 432 NotificationManagerInternal.class); 433 if (nm == null) { 434 return; 435 } 436 try { 437 if (localForegroundNoti.icon == 0) { 438 // It is not correct for the caller to supply a notification 439 // icon, but this used to be able to slip through, so for 440 // those dirty apps give it the app's icon. 441 localForegroundNoti.icon = appInfo.icon; 442 443 // Do not allow apps to present a sneaky invisible content view either. 444 localForegroundNoti.contentView = null; 445 localForegroundNoti.bigContentView = null; 446 CharSequence appName = appInfo.loadLabel( 447 ams.mContext.getPackageManager()); 448 if (appName == null) { 449 appName = appInfo.packageName; 450 } 451 Context ctx = null; 452 try { 453 ctx = ams.mContext.createPackageContext( 454 appInfo.packageName, 0); 455 Intent runningIntent = new Intent( 456 Settings.ACTION_APPLICATION_DETAILS_SETTINGS); 457 runningIntent.setData(Uri.fromParts("package", 458 appInfo.packageName, null)); 459 PendingIntent pi = PendingIntent.getActivity(ams.mContext, 0, 460 runningIntent, PendingIntent.FLAG_UPDATE_CURRENT); 461 localForegroundNoti.color = ams.mContext.getResources().getColor( 462 com.android.internal 463 .R.color.system_notification_accent_color); 464 localForegroundNoti.setLatestEventInfo(ctx, 465 ams.mContext.getString( 466 com.android.internal.R.string 467 .app_running_notification_title, 468 appName), 469 ams.mContext.getString( 470 com.android.internal.R.string 471 .app_running_notification_text, 472 appName), 473 pi); 474 } catch (PackageManager.NameNotFoundException e) { 475 localForegroundNoti.icon = 0; 476 } 477 } 478 if (localForegroundNoti.icon == 0) { 479 // Notifications whose icon is 0 are defined to not show 480 // a notification, silently ignoring it. We don't want to 481 // just ignore it, we want to prevent the service from 482 // being foreground. 483 throw new RuntimeException("icon must be non-zero"); 484 } 485 int[] outId = new int[1]; 486 nm.enqueueNotification(localPackageName, localPackageName, 487 appUid, appPid, null, localForegroundId, localForegroundNoti, 488 outId, userId); 489 } catch (RuntimeException e) { 490 Slog.w(ActivityManagerService.TAG, 491 "Error showing notification for service", e); 492 // If it gave us a garbage notification, it doesn't 493 // get to be foreground. 494 ams.setServiceForeground(name, ServiceRecord.this, 495 0, null, true); 496 ams.crashApplication(appUid, appPid, localPackageName, 497 "Bad notification for startForeground: " + e); 498 } 499 } 500 }); 501 } 502 } 503 504 public void cancelNotification() { 505 if (foregroundId != 0) { 506 // Do asynchronous communication with notification manager to 507 // avoid deadlocks. 508 final String localPackageName = packageName; 509 final int localForegroundId = foregroundId; 510 ams.mHandler.post(new Runnable() { 511 public void run() { 512 INotificationManager inm = NotificationManager.getService(); 513 if (inm == null) { 514 return; 515 } 516 try { 517 inm.cancelNotificationWithTag(localPackageName, null, 518 localForegroundId, userId); 519 } catch (RuntimeException e) { 520 Slog.w(ActivityManagerService.TAG, 521 "Error canceling notification for service", e); 522 } catch (RemoteException e) { 523 } 524 } 525 }); 526 } 527 } 528 529 public void stripForegroundServiceFlagFromNotification() { 530 if (foregroundId == 0) { 531 return; 532 } 533 534 final int localForegroundId = foregroundId; 535 final int localUserId = userId; 536 final String localPackageName = packageName; 537 538 // Do asynchronous communication with notification manager to 539 // avoid deadlocks. 540 ams.mHandler.post(new Runnable() { 541 @Override 542 public void run() { 543 NotificationManagerInternal nmi = LocalServices.getService( 544 NotificationManagerInternal.class); 545 if (nmi == null) { 546 return; 547 } 548 nmi.removeForegroundServiceFlagFromNotification(localPackageName, localForegroundId, 549 localUserId); 550 } 551 }); 552 } 553 554 public void clearDeliveredStartsLocked() { 555 for (int i=deliveredStarts.size()-1; i>=0; i--) { 556 deliveredStarts.get(i).removeUriPermissionsLocked(); 557 } 558 deliveredStarts.clear(); 559 } 560 561 public String toString() { 562 if (stringName != null) { 563 return stringName; 564 } 565 StringBuilder sb = new StringBuilder(128); 566 sb.append("ServiceRecord{") 567 .append(Integer.toHexString(System.identityHashCode(this))) 568 .append(" u").append(userId) 569 .append(' ').append(shortName).append('}'); 570 return stringName = sb.toString(); 571 } 572 } 573
