Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 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 | |
Sudheer Shanka | f4923ea | 2017-03-27 15:36:35 -0700 | [diff] [blame] | 19 | import android.Manifest; |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 20 | import android.app.ActivityManager; |
Sudheer Shanka | f4923ea | 2017-03-27 15:36:35 -0700 | [diff] [blame] | 21 | import android.content.pm.PackageManager; |
Dianne Hackborn | bef28fe | 2015-10-29 17:57:11 -0700 | [diff] [blame] | 22 | import android.os.SystemClock; |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 23 | import android.os.UserHandle; |
Dianne Hackborn | bef28fe | 2015-10-29 17:57:11 -0700 | [diff] [blame] | 24 | import android.util.TimeUtils; |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 25 | |
Sudheer Shanka | 84a4895 | 2017-03-08 18:19:01 -0800 | [diff] [blame] | 26 | import com.android.internal.annotations.GuardedBy; |
| 27 | import com.android.internal.annotations.VisibleForTesting; |
| 28 | |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 29 | /** |
| 30 | * Overall information about a uid that has actively running processes. |
| 31 | */ |
| 32 | public final class UidRecord { |
| 33 | final int uid; |
| 34 | int curProcState; |
| 35 | int setProcState = ActivityManager.PROCESS_STATE_NONEXISTENT; |
Dianne Hackborn | bef28fe | 2015-10-29 17:57:11 -0700 | [diff] [blame] | 36 | long lastBackgroundTime; |
Dianne Hackborn | e07641d | 2016-11-09 15:07:23 -0800 | [diff] [blame] | 37 | boolean ephemeral; |
Dianne Hackborn | be68d49 | 2017-05-03 18:04:05 -0700 | [diff] [blame] | 38 | boolean foregroundServices; |
Dianne Hackborn | 85e3564 | 2017-01-12 15:10:57 -0800 | [diff] [blame] | 39 | boolean curWhitelist; |
| 40 | boolean setWhitelist; |
Dianne Hackborn | bef28fe | 2015-10-29 17:57:11 -0700 | [diff] [blame] | 41 | boolean idle; |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 42 | int numProcs; |
Sudheer Shanka | 51ab3ac | 2017-03-07 15:38:01 -0800 | [diff] [blame] | 43 | |
Sudheer Shanka | 88c4d1c | 2017-02-23 16:34:40 -0800 | [diff] [blame] | 44 | /** |
| 45 | * Sequence number associated with the {@link #curProcState}. This is incremented using |
| 46 | * {@link ActivityManagerService#mProcStateSeqCounter} |
| 47 | * when {@link #curProcState} changes from background to foreground or vice versa. |
| 48 | */ |
Sudheer Shanka | f4923ea | 2017-03-27 15:36:35 -0700 | [diff] [blame] | 49 | @GuardedBy("networkStateUpdate") |
Sudheer Shanka | 88c4d1c | 2017-02-23 16:34:40 -0800 | [diff] [blame] | 50 | long curProcStateSeq; |
Sudheer Shanka | 51ab3ac | 2017-03-07 15:38:01 -0800 | [diff] [blame] | 51 | |
Sudheer Shanka | e736185 | 2017-03-07 11:51:46 -0800 | [diff] [blame] | 52 | /** |
| 53 | * Last seq number for which NetworkPolicyManagerService notified ActivityManagerService that |
| 54 | * network policies rules were updated. |
| 55 | */ |
Sudheer Shanka | f4923ea | 2017-03-27 15:36:35 -0700 | [diff] [blame] | 56 | @GuardedBy("networkStateUpdate") |
Sudheer Shanka | e736185 | 2017-03-07 11:51:46 -0800 | [diff] [blame] | 57 | long lastNetworkUpdatedProcStateSeq; |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 58 | |
Sudheer Shanka | 51ab3ac | 2017-03-07 15:38:01 -0800 | [diff] [blame] | 59 | /** |
| 60 | * Last seq number for which AcitivityManagerService dispatched uid state change to |
| 61 | * NetworkPolicyManagerService. |
| 62 | */ |
Sudheer Shanka | f4923ea | 2017-03-27 15:36:35 -0700 | [diff] [blame] | 63 | @GuardedBy("networkStateUpdate") |
Sudheer Shanka | 51ab3ac | 2017-03-07 15:38:01 -0800 | [diff] [blame] | 64 | long lastDispatchedProcStateSeq; |
| 65 | |
Sudheer Shanka | 84a4895 | 2017-03-08 18:19:01 -0800 | [diff] [blame] | 66 | /** |
| 67 | * Indicates if any thread is waiting for network rules to get updated for {@link #uid}. |
| 68 | */ |
Sudheer Shanka | f4923ea | 2017-03-27 15:36:35 -0700 | [diff] [blame] | 69 | volatile boolean waitingForNetwork; |
Sudheer Shanka | 84a4895 | 2017-03-08 18:19:01 -0800 | [diff] [blame] | 70 | |
Sudheer Shanka | f4923ea | 2017-03-27 15:36:35 -0700 | [diff] [blame] | 71 | /** |
| 72 | * Indicates whether this uid has internet permission or not. |
| 73 | */ |
| 74 | volatile boolean hasInternetPermission; |
| 75 | |
| 76 | /** |
| 77 | * This object is used for waiting for the network state to get updated. |
| 78 | */ |
| 79 | final Object networkStateLock = new Object(); |
Sudheer Shanka | 84a4895 | 2017-03-08 18:19:01 -0800 | [diff] [blame] | 80 | |
Dianne Hackborn | bef28fe | 2015-10-29 17:57:11 -0700 | [diff] [blame] | 81 | static final int CHANGE_PROCSTATE = 0; |
| 82 | static final int CHANGE_GONE = 1; |
| 83 | static final int CHANGE_GONE_IDLE = 2; |
| 84 | static final int CHANGE_IDLE = 3; |
| 85 | static final int CHANGE_ACTIVE = 4; |
| 86 | |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 87 | static final class ChangeItem { |
| 88 | UidRecord uidRecord; |
| 89 | int uid; |
Dianne Hackborn | bef28fe | 2015-10-29 17:57:11 -0700 | [diff] [blame] | 90 | int change; |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 91 | int processState; |
Dianne Hackborn | e07641d | 2016-11-09 15:07:23 -0800 | [diff] [blame] | 92 | boolean ephemeral; |
Sudheer Shanka | 8025580 | 2017-03-04 14:48:53 -0800 | [diff] [blame] | 93 | long procStateSeq; |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 94 | } |
| 95 | |
| 96 | ChangeItem pendingChange; |
| 97 | |
Dianne Hackborn | b1e7776 | 2017-02-13 11:42:18 -0800 | [diff] [blame] | 98 | public UidRecord(int _uid) { |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 99 | uid = _uid; |
Dianne Hackborn | 333394a | 2017-03-23 16:11:25 -0700 | [diff] [blame] | 100 | idle = true; |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 101 | reset(); |
| 102 | } |
| 103 | |
| 104 | public void reset() { |
| 105 | curProcState = ActivityManager.PROCESS_STATE_CACHED_EMPTY; |
Dianne Hackborn | be68d49 | 2017-05-03 18:04:05 -0700 | [diff] [blame] | 106 | foregroundServices = false; |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 107 | } |
| 108 | |
Sudheer Shanka | f4923ea | 2017-03-27 15:36:35 -0700 | [diff] [blame] | 109 | public void updateHasInternetPermission() { |
| 110 | hasInternetPermission = ActivityManager.checkUidPermission(Manifest.permission.INTERNET, |
| 111 | uid) == PackageManager.PERMISSION_GRANTED; |
| 112 | } |
| 113 | |
Sudheer Shanka | 51ab3ac | 2017-03-07 15:38:01 -0800 | [diff] [blame] | 114 | /** |
| 115 | * If the change being dispatched is neither CHANGE_GONE nor CHANGE_GONE_IDLE (not interested in |
| 116 | * these changes), then update the {@link #lastDispatchedProcStateSeq} with |
| 117 | * {@link #curProcStateSeq}. |
| 118 | */ |
| 119 | public void updateLastDispatchedProcStateSeq(int changeToDispatch) { |
| 120 | if (changeToDispatch != CHANGE_GONE && changeToDispatch != CHANGE_GONE_IDLE) { |
| 121 | lastDispatchedProcStateSeq = curProcStateSeq; |
| 122 | } |
| 123 | } |
| 124 | |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 125 | public String toString() { |
| 126 | StringBuilder sb = new StringBuilder(128); |
| 127 | sb.append("UidRecord{"); |
| 128 | sb.append(Integer.toHexString(System.identityHashCode(this))); |
| 129 | sb.append(' '); |
| 130 | UserHandle.formatUid(sb, uid); |
| 131 | sb.append(' '); |
| 132 | sb.append(ProcessList.makeProcStateString(curProcState)); |
Dianne Hackborn | e07641d | 2016-11-09 15:07:23 -0800 | [diff] [blame] | 133 | if (ephemeral) { |
| 134 | sb.append(" ephemeral"); |
| 135 | } |
Dianne Hackborn | be68d49 | 2017-05-03 18:04:05 -0700 | [diff] [blame] | 136 | if (foregroundServices) { |
| 137 | sb.append(" fgServices"); |
| 138 | } |
Dianne Hackborn | 85e3564 | 2017-01-12 15:10:57 -0800 | [diff] [blame] | 139 | if (curWhitelist) { |
| 140 | sb.append(" whitelist"); |
| 141 | } |
Dianne Hackborn | bef28fe | 2015-10-29 17:57:11 -0700 | [diff] [blame] | 142 | if (lastBackgroundTime > 0) { |
| 143 | sb.append(" bg:"); |
| 144 | TimeUtils.formatDuration(SystemClock.elapsedRealtime()-lastBackgroundTime, sb); |
| 145 | } |
| 146 | if (idle) { |
| 147 | sb.append(" idle"); |
| 148 | } |
| 149 | sb.append(" procs:"); |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 150 | sb.append(numProcs); |
Dianne Hackborn | 0aa4313 | 2017-03-22 11:42:03 -0700 | [diff] [blame] | 151 | sb.append(" seq("); |
Sudheer Shanka | 88c4d1c | 2017-02-23 16:34:40 -0800 | [diff] [blame] | 152 | sb.append(curProcStateSeq); |
Dianne Hackborn | 0aa4313 | 2017-03-22 11:42:03 -0700 | [diff] [blame] | 153 | sb.append(","); |
Sudheer Shanka | e736185 | 2017-03-07 11:51:46 -0800 | [diff] [blame] | 154 | sb.append(lastNetworkUpdatedProcStateSeq); |
Dianne Hackborn | 0aa4313 | 2017-03-22 11:42:03 -0700 | [diff] [blame] | 155 | sb.append(","); |
Sudheer Shanka | 51ab3ac | 2017-03-07 15:38:01 -0800 | [diff] [blame] | 156 | sb.append(lastDispatchedProcStateSeq); |
Dianne Hackborn | 0aa4313 | 2017-03-22 11:42:03 -0700 | [diff] [blame] | 157 | sb.append(")}"); |
Dianne Hackborn | d23e0d6 | 2015-05-15 16:36:12 -0700 | [diff] [blame] | 158 | return sb.toString(); |
| 159 | } |
| 160 | } |