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. 108 109 String stringName; // caching of toString 110 111 private int lastStartId; // identifier of most recent start request. 112 113 static class StartItem { 114 final ServiceRecord sr; 115 final boolean taskRemoved; 116 final int id; 117 final Intent intent; 118 final ActivityManagerService.NeededUriGrants neededGrants; 119 long deliveredTime; 120 int deliveryCount; 121 int doneExecutingCount; 122 UriPermissionOwner uriPermissions; 123 124 String stringName; // caching of toString 125 126 StartItem(ServiceRecord _sr, boolean _taskRemoved, int _id, Intent _intent, 127 ActivityManagerService.NeededUriGrants _neededGrants) { 128 sr = _sr; 129 taskRemoved = _taskRemoved; 130 id = _id; 131 intent = _intent; 132 neededGrants = _neededGrants; 133 } 134 135 UriPermissionOwner getUriPermissionsLocked() { 136 if (uriPermissions == null) { 137 uriPermissions = new UriPermissionOwner(sr.ams, this); 138 } 139 return uriPermissions; 140 } 141 142 void removeUriPermissionsLocked() { 143 if (uriPermissions != null) { 144 uriPermissions.removeUriPermissionsLocked(); 145 uriPermissions = null; 146 } 147 } 148 149 public String toString() { 150 if (stringName != null) { 151 return stringName; 152 } 153 StringBuilder sb = new StringBuilder(128); 154 sb.append("ServiceRecord{") 155 .append(Integer.toHexString(System.identityHashCode(sr))) 156 .append(' ').append(sr.shortName) 157 .append(" StartItem ") 158 .append(Integer.toHexString(System.identityHashCode(this))) 159 .append(" id=").append(id).append('}'); 160 return stringName = sb.toString(); 161 } 162 } 163 164 final ArrayList<StartItem> deliveredStarts = new ArrayList<StartItem>(); 165 // start() arguments which been delivered. 166 final ArrayList<StartItem> pendingStarts = new ArrayList<StartItem>(); 167 // start() arguments that haven't yet been delivered. 168 169 void dumpStartList(PrintWriter pw, String prefix, List<StartItem> list, long now) { 170 final int N = list.size(); 171 for (int i=0; i<N; i++) { 172 StartItem si = list.get(i); 173 pw.print(prefix); pw.print("#"); pw.print(i); 174 pw.print(" id="); pw.print(si.id); 175 if (now != 0) { 176 pw.print(" dur="); 177 TimeUtils.formatDuration(si.deliveredTime, now, pw); 178 } 179 if (si.deliveryCount != 0) { 180 pw.print(" dc="); pw.print(si.deliveryCount); 181 } 182 if (si.doneExecutingCount != 0) { 183 pw.print(" dxc="); pw.print(si.doneExecutingCount); 184 } 185 pw.println(""); 186 pw.print(prefix); pw.print(" intent="); 187 if (si.intent != null) pw.println(si.intent.toString()); 188 else pw.println("null"); 189 if (si.neededGrants != null) { 190 pw.print(prefix); pw.print(" neededGrants="); 191 pw.println(si.neededGrants); 192 } 193 if (si.uriPermissions != null) { 194 si.uriPermissions.dump(pw, prefix); 195 } 196 } 197 } 198 199 void dump(PrintWriter pw, String prefix) { 200 pw.print(prefix); pw.print("intent={"); 201 pw.print(intent.getIntent().toShortString(false, true, false, true)); 202 pw.println('}'); 203 pw.print(prefix); pw.print("packageName="); pw.println(packageName); 204 pw.print(prefix); pw.print("processName="); pw.println(processName); 205 if (permission != null) { 206 pw.print(prefix); pw.print("permission="); pw.println(permission); 207 } 208 long now = SystemClock.uptimeMillis(); 209 long nowReal = SystemClock.elapsedRealtime(); 210 if (appInfo != null) { 211 pw.print(prefix); pw.print("baseDir="); pw.println(appInfo.sourceDir); 212 if (!Objects.equals(appInfo.sourceDir, appInfo.publicSourceDir)) { 213 pw.print(prefix); pw.print("resDir="); pw.println(appInfo.publicSourceDir); 214 } 215 pw.print(prefix); pw.print("dataDir="); pw.println(appInfo.dataDir); 216 } 217 pw.print(prefix); pw.print("app="); pw.println(app); 218 if (isolatedProc != null) { 219 pw.print(prefix); pw.print("isolatedProc="); pw.println(isolatedProc); 220 } 221 if (delayed) { 222 pw.print(prefix); pw.print("delayed="); pw.println(delayed); 223 } 224 if (isForeground || foregroundId != 0) { 225 pw.print(prefix); pw.print("isForeground="); pw.print(isForeground); 226 pw.print(" foregroundId="); pw.print(foregroundId); 227 pw.print(" foregroundNoti="); pw.println(foregroundNoti); 228 } 229 pw.print(prefix); pw.print("createTime="); 230 TimeUtils.formatDuration(createTime, nowReal, pw); 231 pw.print(" startingBgTimeout="); 232 TimeUtils.formatDuration(startingBgTimeout, now, pw); 233 pw.println(); 234 pw.print(prefix); pw.print("lastActivity="); 235 TimeUtils.formatDuration(lastActivity, now, pw); 236 pw.print(" restartTime="); 237 TimeUtils.formatDuration(restartTime, now, pw); 238 pw.print(" createdFromFg="); pw.println(createdFromFg); 239 if (startRequested || delayedStop || lastStartId != 0) { 240 pw.print(prefix); pw.print("startRequested="); pw.print(startRequested); 241 pw.print(" delayedStop="); pw.print(delayedStop); 242 pw.print(" stopIfKilled="); pw.print(stopIfKilled); 243 pw.print(" callStart="); pw.print(callStart); 244 pw.print(" lastStartId="); pw.println(lastStartId); 245 } 246 if (executeNesting != 0) { 247 pw.print(prefix); pw.print("executeNesting="); pw.print(executeNesting); 248 pw.print(" executeFg="); pw.print(executeFg); 249 pw.print(" executingStart="); 250 TimeUtils.formatDuration(executingStart, now, pw); 251 pw.println(); 252 } 253 if (crashCount != 0 || restartCount != 0 254 || restartDelay != 0 || nextRestartTime != 0) { 255 pw.print(prefix); pw.print("restartCount="); pw.print(restartCount); 256 pw.print(" restartDelay="); 257 TimeUtils.formatDuration(restartDelay, now, pw); 258 pw.print(" nextRestartTime="); 259 TimeUtils.formatDuration(nextRestartTime, now, pw); 260 pw.print(" crashCount="); pw.println(crashCount); 261 } 262 if (deliveredStarts.size() > 0) { 263 pw.print(prefix); pw.println("Delivered Starts:"); 264 dumpStartList(pw, prefix, deliveredStarts, now); 265 } 266 if (pendingStarts.size() > 0) { 267 pw.print(prefix); pw.println("Pending Starts:"); 268 dumpStartList(pw, prefix, pendingStarts, 0); 269 } 270 if (bindings.size() > 0) { 271 pw.print(prefix); pw.println("Bindings:"); 272 for (int i=0; i<bindings.size(); i++) { 273 IntentBindRecord b = bindings.valueAt(i); 274 pw.print(prefix); pw.print("* IntentBindRecord{"); 275 pw.print(Integer.toHexString(System.identityHashCode(b))); 276 if ((b.collectFlags()&Context.BIND_AUTO_CREATE) != 0) { 277 pw.append(" CREATE"); 278 } 279 pw.println("}:"); 280 b.dumpInService(pw, prefix + " "); 281 } 282 } 283 if (connections.size() > 0) { 284 pw.print(prefix); pw.println("All Connections:"); 285 for (int conni=0; conni<connections.size(); conni++) { 286 ArrayList<ConnectionRecord> c = connections.valueAt(conni); 287 for (int i=0; i<c.size(); i++) { 288 pw.print(prefix); pw.print(" "); pw.println(c.get(i)); 289 } 290 } 291 } 292 } 293 294 ServiceRecord(ActivityManagerService ams, 295 BatteryStatsImpl.Uid.Pkg.Serv servStats, ComponentName name, 296 Intent.FilterComparison intent, ServiceInfo sInfo, boolean callerIsFg, 297 Runnable restarter) { 298 this.ams = ams; 299 this.stats = servStats; 300 this.name = name; 301 shortName = name.flattenToShortString(); 302 this.intent = intent; 303 serviceInfo = sInfo; 304 appInfo = sInfo.applicationInfo; 305 packageName = sInfo.applicationInfo.packageName; 306 processName = sInfo.processName; 307 permission = sInfo.permission; 308 exported = sInfo.exported; 309 this.restarter = restarter; 310 createTime = SystemClock.elapsedRealtime(); 311 lastActivity = SystemClock.uptimeMillis(); 312 userId = UserHandle.getUserId(appInfo.uid); 313 createdFromFg = callerIsFg; 314 } 315 316 public ProcessStats.ServiceState getTracker() { 317 if (tracker != null) { 318 return tracker; 319 } 320 if ((serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) == 0) { 321 tracker = ams.mProcessStats.getServiceStateLocked(serviceInfo.packageName, 322 serviceInfo.applicationInfo.uid, serviceInfo.applicationInfo.versionCode, 323 serviceInfo.processName, serviceInfo.name); 324 tracker.applyNewOwner(this); 325 } 326 return tracker; 327 } 328 329 public void forceClearTracker() { 330 if (tracker != null) { 331 tracker.clearCurrentOwner(this, true); 332 tracker = null; 333 } 334 } 335 336 public void makeRestarting(int memFactor, long now) { 337 if (restartTracker == null) { 338 if ((serviceInfo.applicationInfo.flags&ApplicationInfo.FLAG_PERSISTENT) == 0) { 339 restartTracker = ams.mProcessStats.getServiceStateLocked(serviceInfo.packageName, 340 serviceInfo.applicationInfo.uid, serviceInfo.applicationInfo.versionCode, 341 serviceInfo.processName, serviceInfo.name); 342 } 343 if (restartTracker == null) { 344 return; 345 } 346 } 347 restartTracker.setRestarting(true, memFactor, now); 348 } 349 350 public AppBindRecord retrieveAppBindingLocked(Intent intent, 351 ProcessRecord app) { 352 Intent.FilterComparison filter = new Intent.FilterComparison(intent); 353 IntentBindRecord i = bindings.get(filter); 354 if (i == null) { 355 i = new IntentBindRecord(this, filter); 356 bindings.put(filter, i); 357 } 358 AppBindRecord a = i.apps.get(app); 359 if (a != null) { 360 return a; 361 } 362 a = new AppBindRecord(this, i, app); 363 i.apps.put(app, a); 364 return a; 365 } 366 367 public boolean hasAutoCreateConnections() { 368 // XXX should probably keep a count of the number of auto-create 369 // connections directly in the service. 370 for (int conni=connections.size()-1; conni>=0; conni--) { 371 ArrayList<ConnectionRecord> cr = connections.valueAt(conni); 372 for (int i=0; i<cr.size(); i++) { 373 if ((cr.get(i).flags&Context.BIND_AUTO_CREATE) != 0) { 374 return true; 375 } 376 } 377 } 378 return false; 379 } 380 381 public void resetRestartCounter() { 382 restartCount = 0; 383 restartDelay = 0; 384 restartTime = 0; 385 } 386 387 public StartItem findDeliveredStart(int id, boolean remove) { 388 final int N = deliveredStarts.size(); 389 for (int i=0; i<N; i++) { 390 StartItem si = deliveredStarts.get(i); 391 if (si.id == id) { 392 if (remove) deliveredStarts.remove(i); 393 return si; 394 } 395 } 396 397 return null; 398 } 399 400 public int getLastStartId() { 401 return lastStartId; 402 } 403 404 public int makeNextStartId() { 405 lastStartId++; 406 if (lastStartId < 1) { 407 lastStartId = 1; 408 } 409 return lastStartId; 410 } 411 412 public void postNotification() { 413 final int appUid = appInfo.uid; 414 final int appPid = app.pid; 415 if (foregroundId != 0 && foregroundNoti != null) { 416 // Do asynchronous communication with notification manager to 417 // avoid deadlocks. 418 final String localPackageName = packageName; 419 final int localForegroundId = foregroundId; 420 final Notification localForegroundNoti = foregroundNoti; 421 ams.mHandler.post(new Runnable() { 422 public void run() { 423 NotificationManagerInternal nm = LocalServices.getService( 424 NotificationManagerInternal.class); 425 if (nm == null) { 426 return; 427 } 428 try { 429 if (localForegroundNoti.icon == 0) { 430 // It is not correct for the caller to supply a notification 431 // icon, but this used to be able to slip through, so for 432 // those dirty apps give it the app's icon. 433 localForegroundNoti.icon = appInfo.icon; 434 435 // Do not allow apps to present a sneaky invisible content view either. 436 localForegroundNoti.contentView = null; 437 localForegroundNoti.bigContentView = null; 438 CharSequence appName = appInfo.loadLabel( 439 ams.mContext.getPackageManager()); 440 if (appName == null) { 441 appName = appInfo.packageName; 442 } 443 Context ctx = null; 444 try { 445 ctx = ams.mContext.createPackageContext( 446 appInfo.packageName, 0); 447 Intent runningIntent = new Intent( 448 Settings.ACTION_APPLICATION_DETAILS_SETTINGS); 449 runningIntent.setData(Uri.fromParts("package", 450 appInfo.packageName, null)); 451 PendingIntent pi = PendingIntent.getActivity(ams.mContext, 0, 452 runningIntent, PendingIntent.FLAG_UPDATE_CURRENT); 453 localForegroundNoti.color = ams.mContext.getResources().getColor( 454 com.android.internal 455 .R.color.system_notification_accent_color); 456 localForegroundNoti.setLatestEventInfo(ctx, 457 ams.mContext.getString( 458 com.android.internal.R.string 459 .app_running_notification_title, 460 appName), 461 ams.mContext.getString( 462 com.android.internal.R.string 463 .app_running_notification_text, 464 appName), 465 pi); 466 } catch (PackageManager.NameNotFoundException e) { 467 localForegroundNoti.icon = 0; 468 } 469 } 470 if (localForegroundNoti.icon == 0) { 471 // Notifications whose icon is 0 are defined to not show 472 // a notification, silently ignoring it. We don't want to 473 // just ignore it, we want to prevent the service from 474 // being foreground. 475 throw new RuntimeException("icon must be non-zero"); 476 } 477 int[] outId = new int[1]; 478 nm.enqueueNotification(localPackageName, localPackageName, 479 appUid, appPid, null, localForegroundId, localForegroundNoti, 480 outId, userId); 481 } catch (RuntimeException e) { 482 Slog.w(ActivityManagerService.TAG, 483 "Error showing notification for service", e); 484 // If it gave us a garbage notification, it doesn't 485 // get to be foreground. 486 ams.setServiceForeground(name, ServiceRecord.this, 487 0, null, true); 488 ams.crashApplication(appUid, appPid, localPackageName, 489 "Bad notification for startForeground: " + e); 490 } 491 } 492 }); 493 } 494 } 495 496 public void cancelNotification() { 497 if (foregroundId != 0) { 498 // Do asynchronous communication with notification manager to 499 // avoid deadlocks. 500 final String localPackageName = packageName; 501 final int localForegroundId = foregroundId; 502 ams.mHandler.post(new Runnable() { 503 public void run() { 504 INotificationManager inm = NotificationManager.getService(); 505 if (inm == null) { 506 return; 507 } 508 try { 509 inm.cancelNotificationWithTag(localPackageName, null, 510 localForegroundId, userId); 511 } catch (RuntimeException e) { 512 Slog.w(ActivityManagerService.TAG, 513 "Error canceling notification for service", e); 514 } catch (RemoteException e) { 515 } 516 } 517 }); 518 } 519 } 520 521 public void stripForegroundServiceFlagFromNotification() { 522 if (foregroundId == 0) { 523 return; 524 } 525 526 final int localForegroundId = foregroundId; 527 final int localUserId = userId; 528 final String localPackageName = packageName; 529 530 // Do asynchronous communication with notification manager to 531 // avoid deadlocks. 532 ams.mHandler.post(new Runnable() { 533 @Override 534 public void run() { 535 NotificationManagerInternal nmi = LocalServices.getService( 536 NotificationManagerInternal.class); 537 if (nmi == null) { 538 return; 539 } 540 nmi.removeForegroundServiceFlagFromNotification(localPackageName, localForegroundId, 541 localUserId); 542 } 543 }); 544 } 545 546 public void clearDeliveredStartsLocked() { 547 for (int i=deliveredStarts.size()-1; i>=0; i--) { 548 deliveredStarts.get(i).removeUriPermissionsLocked(); 549 } 550 deliveredStarts.clear(); 551 } 552 553 public String toString() { 554 if (stringName != null) { 555 return stringName; 556 } 557 StringBuilder sb = new StringBuilder(128); 558 sb.append("ServiceRecord{") 559 .append(Integer.toHexString(System.identityHashCode(this))) 560 .append(" u").append(userId) 561 .append(' ').append(shortName).append('}'); 562 return stringName = sb.toString(); 563 } 564 } 565
