Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2014 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.trust; |
| 18 | |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 19 | import com.android.internal.annotations.GuardedBy; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 20 | import com.android.internal.content.PackageMonitor; |
| 21 | import com.android.internal.widget.LockPatternUtils; |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 22 | import com.android.internal.widget.LockPatternUtils.StrongAuthTracker; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 23 | import com.android.server.SystemService; |
| 24 | |
| 25 | import org.xmlpull.v1.XmlPullParser; |
| 26 | import org.xmlpull.v1.XmlPullParserException; |
| 27 | |
| 28 | import android.Manifest; |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 29 | import android.app.ActivityManager; |
Adrian Roos | ca36b95 | 2014-05-16 18:52:29 +0200 | [diff] [blame] | 30 | import android.app.admin.DevicePolicyManager; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 31 | import android.app.trust.ITrustListener; |
| 32 | import android.app.trust.ITrustManager; |
Adrian Roos | ca36b95 | 2014-05-16 18:52:29 +0200 | [diff] [blame] | 33 | import android.content.BroadcastReceiver; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 34 | import android.content.ComponentName; |
| 35 | import android.content.Context; |
| 36 | import android.content.Intent; |
Adrian Roos | ca36b95 | 2014-05-16 18:52:29 +0200 | [diff] [blame] | 37 | import android.content.IntentFilter; |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 38 | import android.content.pm.ApplicationInfo; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 39 | import android.content.pm.PackageManager; |
| 40 | import android.content.pm.ResolveInfo; |
| 41 | import android.content.pm.UserInfo; |
| 42 | import android.content.res.Resources; |
| 43 | import android.content.res.TypedArray; |
| 44 | import android.content.res.XmlResourceParser; |
| 45 | import android.graphics.drawable.Drawable; |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 46 | import android.os.Binder; |
Adrian Roos | a4ba56b | 2014-05-20 12:56:25 +0200 | [diff] [blame] | 47 | import android.os.DeadObjectException; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 48 | import android.os.Handler; |
| 49 | import android.os.IBinder; |
| 50 | import android.os.Message; |
Jim Miller | e303bf4 | 2014-08-26 17:12:29 -0700 | [diff] [blame] | 51 | import android.os.PersistableBundle; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 52 | import android.os.RemoteException; |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 53 | import android.os.SystemClock; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 54 | import android.os.UserHandle; |
| 55 | import android.os.UserManager; |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 56 | import android.provider.Settings; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 57 | import android.service.trust.TrustAgentService; |
| 58 | import android.util.ArraySet; |
| 59 | import android.util.AttributeSet; |
Adrian Roos | 18ea893 | 2014-05-28 14:53:06 +0200 | [diff] [blame] | 60 | import android.util.Log; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 61 | import android.util.Slog; |
Adrian Roos | 7046bfd | 2014-05-16 21:20:54 +0200 | [diff] [blame] | 62 | import android.util.SparseBooleanArray; |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 63 | import android.util.SparseIntArray; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 64 | import android.util.Xml; |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 65 | import android.view.IWindowManager; |
Adrian Roos | 50bfeec | 2014-11-20 16:21:11 +0100 | [diff] [blame] | 66 | import android.view.WindowManagerGlobal; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 67 | |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 68 | import java.io.FileDescriptor; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 69 | import java.io.IOException; |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 70 | import java.io.PrintWriter; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 71 | import java.util.ArrayList; |
| 72 | import java.util.List; |
| 73 | |
| 74 | /** |
| 75 | * Manages trust agents and trust listeners. |
| 76 | * |
| 77 | * It is responsible for binding to the enabled {@link android.service.trust.TrustAgentService}s |
| 78 | * of each user and notifies them about events that are relevant to them. |
| 79 | * It start and stops them based on the value of |
| 80 | * {@link com.android.internal.widget.LockPatternUtils#getEnabledTrustAgents(int)}. |
| 81 | * |
| 82 | * It also keeps a set of {@link android.app.trust.ITrustListener}s that are notified whenever the |
| 83 | * trust state changes for any user. |
| 84 | * |
| 85 | * Trust state and the setting of enabled agents is kept per user and each user has its own |
| 86 | * instance of a {@link android.service.trust.TrustAgentService}. |
| 87 | */ |
| 88 | public class TrustManagerService extends SystemService { |
| 89 | |
| 90 | private static final boolean DEBUG = false; |
| 91 | private static final String TAG = "TrustManagerService"; |
| 92 | |
| 93 | private static final Intent TRUST_AGENT_INTENT = |
| 94 | new Intent(TrustAgentService.SERVICE_INTERFACE); |
Adrian Roos | 18ea893 | 2014-05-28 14:53:06 +0200 | [diff] [blame] | 95 | private static final String PERMISSION_PROVIDE_AGENT = Manifest.permission.PROVIDE_TRUST_AGENT; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 96 | |
| 97 | private static final int MSG_REGISTER_LISTENER = 1; |
| 98 | private static final int MSG_UNREGISTER_LISTENER = 2; |
| 99 | private static final int MSG_DISPATCH_UNLOCK_ATTEMPT = 3; |
| 100 | private static final int MSG_ENABLED_AGENTS_CHANGED = 4; |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 101 | private static final int MSG_KEYGUARD_SHOWING_CHANGED = 6; |
| 102 | private static final int MSG_START_USER = 7; |
| 103 | private static final int MSG_CLEANUP_USER = 8; |
| 104 | private static final int MSG_SWITCH_USER = 9; |
Clara Bayarri | 56878a9 | 2015-10-29 15:43:55 +0000 | [diff] [blame] | 105 | private static final int MSG_SET_DEVICE_LOCKED = 10; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 106 | |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 107 | private final ArraySet<AgentInfo> mActiveAgents = new ArraySet<>(); |
| 108 | private final ArrayList<ITrustListener> mTrustListeners = new ArrayList<>(); |
Adrian Roos | 9dbe190 | 2014-08-13 18:25:52 +0200 | [diff] [blame] | 109 | private final Receiver mReceiver = new Receiver(); |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 110 | |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 111 | /* package */ final TrustArchive mArchive = new TrustArchive(); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 112 | private final Context mContext; |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 113 | private final LockPatternUtils mLockPatternUtils; |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 114 | private final UserManager mUserManager; |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 115 | private final ActivityManager mActivityManager; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 116 | |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 117 | @GuardedBy("mUserIsTrusted") |
| 118 | private final SparseBooleanArray mUserIsTrusted = new SparseBooleanArray(); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 119 | |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 120 | @GuardedBy("mDeviceLockedForUser") |
| 121 | private final SparseBooleanArray mDeviceLockedForUser = new SparseBooleanArray(); |
| 122 | |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 123 | private boolean mTrustAgentsCanRun = false; |
Xiaohui Chen | 09e0291 | 2015-08-05 09:44:56 -0700 | [diff] [blame] | 124 | private int mCurrentUser = UserHandle.USER_SYSTEM; |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 125 | |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 126 | public TrustManagerService(Context context) { |
| 127 | super(context); |
| 128 | mContext = context; |
| 129 | mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 130 | mActivityManager = (ActivityManager) mContext.getSystemService(Context.ACTIVITY_SERVICE); |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 131 | mLockPatternUtils = new LockPatternUtils(context); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 132 | } |
| 133 | |
| 134 | @Override |
| 135 | public void onStart() { |
| 136 | publishBinderService(Context.TRUST_SERVICE, mService); |
| 137 | } |
| 138 | |
| 139 | @Override |
| 140 | public void onBootPhase(int phase) { |
Adrian Roos | 49d5345 | 2014-10-24 15:48:39 +0200 | [diff] [blame] | 141 | if (isSafeMode()) { |
| 142 | // No trust agents in safe mode. |
| 143 | return; |
| 144 | } |
| 145 | if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 146 | mPackageMonitor.register(mContext, mHandler.getLooper(), UserHandle.ALL, true); |
Adrian Roos | 9dbe190 | 2014-08-13 18:25:52 +0200 | [diff] [blame] | 147 | mReceiver.register(mContext); |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 148 | mLockPatternUtils.registerStrongAuthTracker(mStrongAuthTracker); |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 149 | } else if (phase == SystemService.PHASE_THIRD_PARTY_APPS_CAN_START) { |
| 150 | mTrustAgentsCanRun = true; |
Marco Fucci | 4e68f11 | 2014-08-29 12:31:48 -0700 | [diff] [blame] | 151 | refreshAgentList(UserHandle.USER_ALL); |
Adrian Roos | 49d5345 | 2014-10-24 15:48:39 +0200 | [diff] [blame] | 152 | } else if (phase == SystemService.PHASE_BOOT_COMPLETED) { |
Xiaohui Chen | 09e0291 | 2015-08-05 09:44:56 -0700 | [diff] [blame] | 153 | maybeEnableFactoryTrustAgents(mLockPatternUtils, UserHandle.USER_SYSTEM); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 154 | } |
| 155 | } |
| 156 | |
| 157 | // Agent management |
| 158 | |
| 159 | private static final class AgentInfo { |
| 160 | CharSequence label; |
| 161 | Drawable icon; |
| 162 | ComponentName component; // service that implements ITrustAgent |
| 163 | ComponentName settings; // setting to launch to modify agent. |
| 164 | TrustAgentWrapper agent; |
| 165 | int userId; |
| 166 | |
| 167 | @Override |
| 168 | public boolean equals(Object other) { |
| 169 | if (!(other instanceof AgentInfo)) { |
| 170 | return false; |
| 171 | } |
| 172 | AgentInfo o = (AgentInfo) other; |
| 173 | return component.equals(o.component) && userId == o.userId; |
| 174 | } |
| 175 | |
| 176 | @Override |
| 177 | public int hashCode() { |
| 178 | return component.hashCode() * 31 + userId; |
| 179 | } |
| 180 | } |
| 181 | |
| 182 | private void updateTrustAll() { |
| 183 | List<UserInfo> userInfos = mUserManager.getUsers(true /* excludeDying */); |
| 184 | for (UserInfo userInfo : userInfos) { |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 185 | updateTrust(userInfo.id, 0); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 186 | } |
| 187 | } |
| 188 | |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 189 | public void updateTrust(int userId, int flags) { |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 190 | dispatchOnTrustManagedChanged(aggregateIsTrustManaged(userId), userId); |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 191 | boolean trusted = aggregateIsTrusted(userId); |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 192 | boolean changed; |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 193 | synchronized (mUserIsTrusted) { |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 194 | changed = mUserIsTrusted.get(userId) != trusted; |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 195 | mUserIsTrusted.put(userId, trusted); |
| 196 | } |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 197 | dispatchOnTrustChanged(trusted, userId, flags); |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 198 | if (changed) { |
| 199 | refreshDeviceLockedForUser(userId); |
| 200 | } |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 201 | } |
| 202 | |
Marco Fucci | 4e68f11 | 2014-08-29 12:31:48 -0700 | [diff] [blame] | 203 | void refreshAgentList(int userId) { |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 204 | if (DEBUG) Slog.d(TAG, "refreshAgentList()"); |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 205 | if (!mTrustAgentsCanRun) { |
Adrian Roos | 49d5345 | 2014-10-24 15:48:39 +0200 | [diff] [blame] | 206 | return; |
| 207 | } |
Xiaohui Chen | 09e0291 | 2015-08-05 09:44:56 -0700 | [diff] [blame] | 208 | if (userId != UserHandle.USER_ALL && userId < UserHandle.USER_SYSTEM) { |
Adrian Roos | e681c27 | 2014-09-08 14:03:47 +0200 | [diff] [blame] | 209 | Log.e(TAG, "refreshAgentList(userId=" + userId + "): Invalid user handle," |
| 210 | + " must be USER_ALL or a specific user.", new Throwable("here")); |
| 211 | userId = UserHandle.USER_ALL; |
| 212 | } |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 213 | PackageManager pm = mContext.getPackageManager(); |
| 214 | |
Marco Fucci | 4e68f11 | 2014-08-29 12:31:48 -0700 | [diff] [blame] | 215 | List<UserInfo> userInfos; |
| 216 | if (userId == UserHandle.USER_ALL) { |
| 217 | userInfos = mUserManager.getUsers(true /* excludeDying */); |
| 218 | } else { |
| 219 | userInfos = new ArrayList<>(); |
| 220 | userInfos.add(mUserManager.getUserInfo(userId)); |
| 221 | } |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 222 | LockPatternUtils lockPatternUtils = mLockPatternUtils; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 223 | |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 224 | ArraySet<AgentInfo> obsoleteAgents = new ArraySet<>(); |
| 225 | obsoleteAgents.addAll(mActiveAgents); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 226 | |
| 227 | for (UserInfo userInfo : userInfos) { |
Adrian Roos | fc29e0b | 2014-11-11 12:55:44 +0100 | [diff] [blame] | 228 | if (userInfo == null || userInfo.partial || !userInfo.isEnabled() |
| 229 | || userInfo.guestToRemove) continue; |
Xiaohui Chen | 7cb69df | 2015-07-13 16:01:01 -0700 | [diff] [blame] | 230 | if (!userInfo.supportsSwitchToByUser()) continue; |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 231 | if (!mActivityManager.isUserRunning(userInfo.id)) continue; |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 232 | if (!lockPatternUtils.isSecure(userInfo.id)) continue; |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 233 | if (!mStrongAuthTracker.isTrustAllowedForUser(userInfo.id)) continue; |
Adrian Roos | 8f21158 | 2014-07-29 15:09:57 +0200 | [diff] [blame] | 234 | DevicePolicyManager dpm = lockPatternUtils.getDevicePolicyManager(); |
| 235 | int disabledFeatures = dpm.getKeyguardDisabledFeatures(null, userInfo.id); |
Jim Miller | 604e755 | 2014-07-18 19:00:02 -0700 | [diff] [blame] | 236 | final boolean disableTrustAgents = |
Adrian Roos | ca36b95 | 2014-05-16 18:52:29 +0200 | [diff] [blame] | 237 | (disabledFeatures & DevicePolicyManager.KEYGUARD_DISABLE_TRUST_AGENTS) != 0; |
| 238 | |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 239 | List<ComponentName> enabledAgents = lockPatternUtils.getEnabledTrustAgents(userInfo.id); |
Adrian Roos | 8f21158 | 2014-07-29 15:09:57 +0200 | [diff] [blame] | 240 | if (enabledAgents == null) { |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 241 | continue; |
| 242 | } |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 243 | List<ResolveInfo> resolveInfos = resolveAllowedTrustAgents(pm, userInfo.id); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 244 | for (ResolveInfo resolveInfo : resolveInfos) { |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 245 | ComponentName name = getComponentName(resolveInfo); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 246 | |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 247 | if (!enabledAgents.contains(name)) continue; |
Adrian Roos | 8f21158 | 2014-07-29 15:09:57 +0200 | [diff] [blame] | 248 | if (disableTrustAgents) { |
Jim Miller | e303bf4 | 2014-08-26 17:12:29 -0700 | [diff] [blame] | 249 | List<PersistableBundle> config = |
| 250 | dpm.getTrustAgentConfiguration(null /* admin */, name, userInfo.id); |
Adrian Roos | 8f21158 | 2014-07-29 15:09:57 +0200 | [diff] [blame] | 251 | // Disable agent if no features are enabled. |
Jim Miller | e303bf4 | 2014-08-26 17:12:29 -0700 | [diff] [blame] | 252 | if (config == null || config.isEmpty()) continue; |
Adrian Roos | 8f21158 | 2014-07-29 15:09:57 +0200 | [diff] [blame] | 253 | } |
| 254 | |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 255 | AgentInfo agentInfo = new AgentInfo(); |
| 256 | agentInfo.component = name; |
| 257 | agentInfo.userId = userInfo.id; |
| 258 | if (!mActiveAgents.contains(agentInfo)) { |
| 259 | agentInfo.label = resolveInfo.loadLabel(pm); |
| 260 | agentInfo.icon = resolveInfo.loadIcon(pm); |
| 261 | agentInfo.settings = getSettingsComponentName(pm, resolveInfo); |
| 262 | agentInfo.agent = new TrustAgentWrapper(mContext, this, |
| 263 | new Intent().setComponent(name), userInfo.getUserHandle()); |
| 264 | mActiveAgents.add(agentInfo); |
| 265 | } else { |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 266 | obsoleteAgents.remove(agentInfo); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 267 | } |
| 268 | } |
| 269 | } |
| 270 | |
| 271 | boolean trustMayHaveChanged = false; |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 272 | for (int i = 0; i < obsoleteAgents.size(); i++) { |
| 273 | AgentInfo info = obsoleteAgents.valueAt(i); |
Adrian Roos | e681c27 | 2014-09-08 14:03:47 +0200 | [diff] [blame] | 274 | if (userId == UserHandle.USER_ALL || userId == info.userId) { |
| 275 | if (info.agent.isManagingTrust()) { |
| 276 | trustMayHaveChanged = true; |
| 277 | } |
Adrian Roos | fc29e0b | 2014-11-11 12:55:44 +0100 | [diff] [blame] | 278 | info.agent.destroy(); |
Adrian Roos | e681c27 | 2014-09-08 14:03:47 +0200 | [diff] [blame] | 279 | mActiveAgents.remove(info); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 280 | } |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | if (trustMayHaveChanged) { |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 284 | if (userId == UserHandle.USER_ALL) { |
| 285 | updateTrustAll(); |
| 286 | } else { |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 287 | updateTrust(userId, 0); |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 288 | } |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 289 | } |
| 290 | } |
| 291 | |
Clara Bayarri | 56878a9 | 2015-10-29 15:43:55 +0000 | [diff] [blame] | 292 | public void setDeviceLockedForUser(int userId, boolean locked) { |
Clara Bayarri | a177111 | 2015-12-18 16:29:18 +0000 | [diff] [blame^] | 293 | if (mLockPatternUtils.isSeparateProfileChallengeEnabled(userId)) { |
| 294 | synchronized (mDeviceLockedForUser) { |
| 295 | mDeviceLockedForUser.put(userId, locked); |
Clara Bayarri | 56878a9 | 2015-10-29 15:43:55 +0000 | [diff] [blame] | 296 | } |
| 297 | } |
| 298 | } |
| 299 | |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 300 | boolean isDeviceLockedInner(int userId) { |
| 301 | synchronized (mDeviceLockedForUser) { |
| 302 | return mDeviceLockedForUser.get(userId, true); |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | private void refreshDeviceLockedForUser(int userId) { |
Xiaohui Chen | 09e0291 | 2015-08-05 09:44:56 -0700 | [diff] [blame] | 307 | if (userId != UserHandle.USER_ALL && userId < UserHandle.USER_SYSTEM) { |
Adrian Roos | 7e2e40e | 2014-11-21 15:27:12 +0100 | [diff] [blame] | 308 | Log.e(TAG, "refreshDeviceLockedForUser(userId=" + userId + "): Invalid user handle," |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 309 | + " must be USER_ALL or a specific user.", new Throwable("here")); |
| 310 | userId = UserHandle.USER_ALL; |
| 311 | } |
| 312 | |
| 313 | List<UserInfo> userInfos; |
| 314 | if (userId == UserHandle.USER_ALL) { |
| 315 | userInfos = mUserManager.getUsers(true /* excludeDying */); |
| 316 | } else { |
| 317 | userInfos = new ArrayList<>(); |
| 318 | userInfos.add(mUserManager.getUserInfo(userId)); |
| 319 | } |
| 320 | |
| 321 | IWindowManager wm = WindowManagerGlobal.getWindowManagerService(); |
| 322 | |
| 323 | for (int i = 0; i < userInfos.size(); i++) { |
| 324 | UserInfo info = userInfos.get(i); |
| 325 | |
| 326 | if (info == null || info.partial || !info.isEnabled() || info.guestToRemove |
Xiaohui Chen | 7cb69df | 2015-07-13 16:01:01 -0700 | [diff] [blame] | 327 | || !info.supportsSwitchToByUser()) { |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 328 | continue; |
| 329 | } |
| 330 | |
| 331 | int id = info.id; |
| 332 | boolean secure = mLockPatternUtils.isSecure(id); |
| 333 | boolean trusted = aggregateIsTrusted(id); |
| 334 | boolean showingKeyguard = true; |
| 335 | if (mCurrentUser == id) { |
| 336 | try { |
| 337 | showingKeyguard = wm.isKeyguardLocked(); |
| 338 | } catch (RemoteException e) { |
| 339 | } |
| 340 | } |
| 341 | boolean deviceLocked = secure && showingKeyguard && !trusted; |
| 342 | |
| 343 | boolean changed; |
| 344 | synchronized (mDeviceLockedForUser) { |
| 345 | changed = isDeviceLockedInner(id) != deviceLocked; |
| 346 | mDeviceLockedForUser.put(id, deviceLocked); |
| 347 | } |
| 348 | if (changed) { |
| 349 | dispatchDeviceLocked(id, deviceLocked); |
| 350 | } |
| 351 | } |
| 352 | } |
| 353 | |
| 354 | private void dispatchDeviceLocked(int userId, boolean isLocked) { |
| 355 | for (int i = 0; i < mActiveAgents.size(); i++) { |
| 356 | AgentInfo agent = mActiveAgents.valueAt(i); |
| 357 | if (agent.userId == userId) { |
| 358 | if (isLocked) { |
| 359 | agent.agent.onDeviceLocked(); |
| 360 | } else{ |
| 361 | agent.agent.onDeviceUnlocked(); |
| 362 | } |
| 363 | } |
| 364 | } |
| 365 | } |
| 366 | |
Marco Fucci | 4e68f11 | 2014-08-29 12:31:48 -0700 | [diff] [blame] | 367 | void updateDevicePolicyFeatures() { |
Adrian Roos | 8f21158 | 2014-07-29 15:09:57 +0200 | [diff] [blame] | 368 | for (int i = 0; i < mActiveAgents.size(); i++) { |
| 369 | AgentInfo info = mActiveAgents.valueAt(i); |
| 370 | if (info.agent.isConnected()) { |
| 371 | info.agent.updateDevicePolicyFeatures(); |
| 372 | } |
| 373 | } |
| 374 | } |
| 375 | |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 376 | private void removeAgentsOfPackage(String packageName) { |
| 377 | boolean trustMayHaveChanged = false; |
| 378 | for (int i = mActiveAgents.size() - 1; i >= 0; i--) { |
| 379 | AgentInfo info = mActiveAgents.valueAt(i); |
| 380 | if (packageName.equals(info.component.getPackageName())) { |
| 381 | Log.i(TAG, "Resetting agent " + info.component.flattenToShortString()); |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 382 | if (info.agent.isManagingTrust()) { |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 383 | trustMayHaveChanged = true; |
| 384 | } |
Adrian Roos | fc29e0b | 2014-11-11 12:55:44 +0100 | [diff] [blame] | 385 | info.agent.destroy(); |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 386 | mActiveAgents.removeAt(i); |
| 387 | } |
| 388 | } |
| 389 | if (trustMayHaveChanged) { |
| 390 | updateTrustAll(); |
| 391 | } |
| 392 | } |
| 393 | |
| 394 | public void resetAgent(ComponentName name, int userId) { |
| 395 | boolean trustMayHaveChanged = false; |
| 396 | for (int i = mActiveAgents.size() - 1; i >= 0; i--) { |
| 397 | AgentInfo info = mActiveAgents.valueAt(i); |
| 398 | if (name.equals(info.component) && userId == info.userId) { |
| 399 | Log.i(TAG, "Resetting agent " + info.component.flattenToShortString()); |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 400 | if (info.agent.isManagingTrust()) { |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 401 | trustMayHaveChanged = true; |
| 402 | } |
Adrian Roos | fc29e0b | 2014-11-11 12:55:44 +0100 | [diff] [blame] | 403 | info.agent.destroy(); |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 404 | mActiveAgents.removeAt(i); |
| 405 | } |
| 406 | } |
| 407 | if (trustMayHaveChanged) { |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 408 | updateTrust(userId, 0); |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 409 | } |
Marco Fucci | 4e68f11 | 2014-08-29 12:31:48 -0700 | [diff] [blame] | 410 | refreshAgentList(userId); |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 411 | } |
| 412 | |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 413 | private ComponentName getSettingsComponentName(PackageManager pm, ResolveInfo resolveInfo) { |
| 414 | if (resolveInfo == null || resolveInfo.serviceInfo == null |
| 415 | || resolveInfo.serviceInfo.metaData == null) return null; |
| 416 | String cn = null; |
| 417 | XmlResourceParser parser = null; |
| 418 | Exception caughtException = null; |
| 419 | try { |
| 420 | parser = resolveInfo.serviceInfo.loadXmlMetaData(pm, |
| 421 | TrustAgentService.TRUST_AGENT_META_DATA); |
| 422 | if (parser == null) { |
| 423 | Slog.w(TAG, "Can't find " + TrustAgentService.TRUST_AGENT_META_DATA + " meta-data"); |
| 424 | return null; |
| 425 | } |
| 426 | Resources res = pm.getResourcesForApplication(resolveInfo.serviceInfo.applicationInfo); |
| 427 | AttributeSet attrs = Xml.asAttributeSet(parser); |
| 428 | int type; |
| 429 | while ((type = parser.next()) != XmlPullParser.END_DOCUMENT |
| 430 | && type != XmlPullParser.START_TAG) { |
| 431 | // Drain preamble. |
| 432 | } |
| 433 | String nodeName = parser.getName(); |
Adrian Roos | 7e03dfc | 2014-05-16 16:06:28 +0200 | [diff] [blame] | 434 | if (!"trust-agent".equals(nodeName)) { |
| 435 | Slog.w(TAG, "Meta-data does not start with trust-agent tag"); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 436 | return null; |
| 437 | } |
| 438 | TypedArray sa = res |
| 439 | .obtainAttributes(attrs, com.android.internal.R.styleable.TrustAgent); |
| 440 | cn = sa.getString(com.android.internal.R.styleable.TrustAgent_settingsActivity); |
| 441 | sa.recycle(); |
| 442 | } catch (PackageManager.NameNotFoundException e) { |
| 443 | caughtException = e; |
| 444 | } catch (IOException e) { |
| 445 | caughtException = e; |
| 446 | } catch (XmlPullParserException e) { |
| 447 | caughtException = e; |
| 448 | } finally { |
| 449 | if (parser != null) parser.close(); |
| 450 | } |
| 451 | if (caughtException != null) { |
| 452 | Slog.w(TAG, "Error parsing : " + resolveInfo.serviceInfo.packageName, caughtException); |
| 453 | return null; |
| 454 | } |
| 455 | if (cn == null) { |
| 456 | return null; |
| 457 | } |
| 458 | if (cn.indexOf('/') < 0) { |
| 459 | cn = resolveInfo.serviceInfo.packageName + "/" + cn; |
| 460 | } |
| 461 | return ComponentName.unflattenFromString(cn); |
| 462 | } |
| 463 | |
| 464 | private ComponentName getComponentName(ResolveInfo resolveInfo) { |
| 465 | if (resolveInfo == null || resolveInfo.serviceInfo == null) return null; |
| 466 | return new ComponentName(resolveInfo.serviceInfo.packageName, resolveInfo.serviceInfo.name); |
| 467 | } |
| 468 | |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 469 | private void maybeEnableFactoryTrustAgents(LockPatternUtils utils, int userId) { |
| 470 | if (0 != Settings.Secure.getIntForUser(mContext.getContentResolver(), |
| 471 | Settings.Secure.TRUST_AGENTS_INITIALIZED, 0, userId)) { |
| 472 | return; |
| 473 | } |
| 474 | PackageManager pm = mContext.getPackageManager(); |
| 475 | List<ResolveInfo> resolveInfos = resolveAllowedTrustAgents(pm, userId); |
| 476 | ArraySet<ComponentName> discoveredAgents = new ArraySet<>(); |
| 477 | for (ResolveInfo resolveInfo : resolveInfos) { |
| 478 | ComponentName componentName = getComponentName(resolveInfo); |
| 479 | int applicationInfoFlags = resolveInfo.serviceInfo.applicationInfo.flags; |
| 480 | if ((applicationInfoFlags & ApplicationInfo.FLAG_SYSTEM) == 0) { |
| 481 | Log.i(TAG, "Leaving agent " + componentName + " disabled because package " |
| 482 | + "is not a system package."); |
| 483 | continue; |
| 484 | } |
| 485 | discoveredAgents.add(componentName); |
| 486 | } |
| 487 | |
| 488 | List<ComponentName> previouslyEnabledAgents = utils.getEnabledTrustAgents(userId); |
| 489 | if (previouslyEnabledAgents != null) { |
| 490 | discoveredAgents.addAll(previouslyEnabledAgents); |
| 491 | } |
| 492 | utils.setEnabledTrustAgents(discoveredAgents, userId); |
| 493 | Settings.Secure.putIntForUser(mContext.getContentResolver(), |
| 494 | Settings.Secure.TRUST_AGENTS_INITIALIZED, 1, userId); |
| 495 | } |
| 496 | |
| 497 | private List<ResolveInfo> resolveAllowedTrustAgents(PackageManager pm, int userId) { |
| 498 | List<ResolveInfo> resolveInfos = pm.queryIntentServicesAsUser(TRUST_AGENT_INTENT, |
| 499 | 0 /* flags */, userId); |
| 500 | ArrayList<ResolveInfo> allowedAgents = new ArrayList<>(resolveInfos.size()); |
| 501 | for (ResolveInfo resolveInfo : resolveInfos) { |
| 502 | if (resolveInfo.serviceInfo == null) continue; |
| 503 | if (resolveInfo.serviceInfo.applicationInfo == null) continue; |
| 504 | String packageName = resolveInfo.serviceInfo.packageName; |
| 505 | if (pm.checkPermission(PERMISSION_PROVIDE_AGENT, packageName) |
| 506 | != PackageManager.PERMISSION_GRANTED) { |
| 507 | ComponentName name = getComponentName(resolveInfo); |
| 508 | Log.w(TAG, "Skipping agent " + name + " because package does not have" |
| 509 | + " permission " + PERMISSION_PROVIDE_AGENT + "."); |
| 510 | continue; |
| 511 | } |
| 512 | allowedAgents.add(resolveInfo); |
| 513 | } |
| 514 | return allowedAgents; |
| 515 | } |
| 516 | |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 517 | // Agent dispatch and aggregation |
| 518 | |
| 519 | private boolean aggregateIsTrusted(int userId) { |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 520 | if (!mStrongAuthTracker.isTrustAllowedForUser(userId)) { |
Adrian Roos | 7046bfd | 2014-05-16 21:20:54 +0200 | [diff] [blame] | 521 | return false; |
| 522 | } |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 523 | for (int i = 0; i < mActiveAgents.size(); i++) { |
| 524 | AgentInfo info = mActiveAgents.valueAt(i); |
| 525 | if (info.userId == userId) { |
| 526 | if (info.agent.isTrusted()) { |
| 527 | return true; |
| 528 | } |
| 529 | } |
| 530 | } |
| 531 | return false; |
| 532 | } |
| 533 | |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 534 | private boolean aggregateIsTrustManaged(int userId) { |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 535 | if (!mStrongAuthTracker.isTrustAllowedForUser(userId)) { |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 536 | return false; |
| 537 | } |
| 538 | for (int i = 0; i < mActiveAgents.size(); i++) { |
| 539 | AgentInfo info = mActiveAgents.valueAt(i); |
| 540 | if (info.userId == userId) { |
| 541 | if (info.agent.isManagingTrust()) { |
| 542 | return true; |
| 543 | } |
| 544 | } |
| 545 | } |
| 546 | return false; |
| 547 | } |
| 548 | |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 549 | private void dispatchUnlockAttempt(boolean successful, int userId) { |
| 550 | for (int i = 0; i < mActiveAgents.size(); i++) { |
| 551 | AgentInfo info = mActiveAgents.valueAt(i); |
| 552 | if (info.userId == userId) { |
| 553 | info.agent.onUnlockAttempt(successful); |
| 554 | } |
| 555 | } |
Adrian Roos | 2c12cfa | 2014-06-25 23:28:53 +0200 | [diff] [blame] | 556 | } |
| 557 | |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 558 | // Listeners |
| 559 | |
| 560 | private void addListener(ITrustListener listener) { |
| 561 | for (int i = 0; i < mTrustListeners.size(); i++) { |
| 562 | if (mTrustListeners.get(i).asBinder() == listener.asBinder()) { |
| 563 | return; |
| 564 | } |
| 565 | } |
| 566 | mTrustListeners.add(listener); |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 567 | updateTrustAll(); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 568 | } |
| 569 | |
| 570 | private void removeListener(ITrustListener listener) { |
| 571 | for (int i = 0; i < mTrustListeners.size(); i++) { |
| 572 | if (mTrustListeners.get(i).asBinder() == listener.asBinder()) { |
Jay Civelli | 979a32e | 2014-07-18 16:47:36 -0700 | [diff] [blame] | 573 | mTrustListeners.remove(i); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 574 | return; |
| 575 | } |
| 576 | } |
| 577 | } |
| 578 | |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 579 | private void dispatchOnTrustChanged(boolean enabled, int userId, int flags) { |
| 580 | if (!enabled) flags = 0; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 581 | for (int i = 0; i < mTrustListeners.size(); i++) { |
| 582 | try { |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 583 | mTrustListeners.get(i).onTrustChanged(enabled, userId, flags); |
Adrian Roos | a4ba56b | 2014-05-20 12:56:25 +0200 | [diff] [blame] | 584 | } catch (DeadObjectException e) { |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 585 | Slog.d(TAG, "Removing dead TrustListener."); |
| 586 | mTrustListeners.remove(i); |
| 587 | i--; |
| 588 | } catch (RemoteException e) { |
| 589 | Slog.e(TAG, "Exception while notifying TrustListener.", e); |
| 590 | } |
| 591 | } |
| 592 | } |
| 593 | |
| 594 | private void dispatchOnTrustManagedChanged(boolean managed, int userId) { |
| 595 | for (int i = 0; i < mTrustListeners.size(); i++) { |
| 596 | try { |
| 597 | mTrustListeners.get(i).onTrustManagedChanged(managed, userId); |
| 598 | } catch (DeadObjectException e) { |
| 599 | Slog.d(TAG, "Removing dead TrustListener."); |
Adrian Roos | a4ba56b | 2014-05-20 12:56:25 +0200 | [diff] [blame] | 600 | mTrustListeners.remove(i); |
| 601 | i--; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 602 | } catch (RemoteException e) { |
Adrian Roos | a4ba56b | 2014-05-20 12:56:25 +0200 | [diff] [blame] | 603 | Slog.e(TAG, "Exception while notifying TrustListener.", e); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 604 | } |
| 605 | } |
| 606 | } |
| 607 | |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 608 | // User lifecycle |
| 609 | |
| 610 | @Override |
| 611 | public void onStartUser(int userId) { |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 612 | mHandler.obtainMessage(MSG_START_USER, userId, 0, null).sendToTarget(); |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 613 | } |
| 614 | |
| 615 | @Override |
| 616 | public void onCleanupUser(int userId) { |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 617 | mHandler.obtainMessage(MSG_CLEANUP_USER, userId, 0, null).sendToTarget(); |
| 618 | } |
| 619 | |
| 620 | @Override |
| 621 | public void onSwitchUser(int userId) { |
| 622 | mHandler.obtainMessage(MSG_SWITCH_USER, userId, 0, null).sendToTarget(); |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 623 | } |
| 624 | |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 625 | // Plumbing |
| 626 | |
| 627 | private final IBinder mService = new ITrustManager.Stub() { |
| 628 | @Override |
| 629 | public void reportUnlockAttempt(boolean authenticated, int userId) throws RemoteException { |
| 630 | enforceReportPermission(); |
| 631 | mHandler.obtainMessage(MSG_DISPATCH_UNLOCK_ATTEMPT, authenticated ? 1 : 0, userId) |
| 632 | .sendToTarget(); |
| 633 | } |
| 634 | |
| 635 | @Override |
| 636 | public void reportEnabledTrustAgentsChanged(int userId) throws RemoteException { |
| 637 | enforceReportPermission(); |
| 638 | // coalesce refresh messages. |
| 639 | mHandler.removeMessages(MSG_ENABLED_AGENTS_CHANGED); |
| 640 | mHandler.sendEmptyMessage(MSG_ENABLED_AGENTS_CHANGED); |
| 641 | } |
| 642 | |
| 643 | @Override |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 644 | public void reportKeyguardShowingChanged() throws RemoteException { |
| 645 | enforceReportPermission(); |
| 646 | // coalesce refresh messages. |
| 647 | mHandler.removeMessages(MSG_KEYGUARD_SHOWING_CHANGED); |
| 648 | mHandler.sendEmptyMessage(MSG_KEYGUARD_SHOWING_CHANGED); |
| 649 | } |
| 650 | |
| 651 | @Override |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 652 | public void registerTrustListener(ITrustListener trustListener) throws RemoteException { |
| 653 | enforceListenerPermission(); |
| 654 | mHandler.obtainMessage(MSG_REGISTER_LISTENER, trustListener).sendToTarget(); |
| 655 | } |
| 656 | |
| 657 | @Override |
| 658 | public void unregisterTrustListener(ITrustListener trustListener) throws RemoteException { |
| 659 | enforceListenerPermission(); |
| 660 | mHandler.obtainMessage(MSG_UNREGISTER_LISTENER, trustListener).sendToTarget(); |
| 661 | } |
| 662 | |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 663 | @Override |
Adrian Roos | 50bfeec | 2014-11-20 16:21:11 +0100 | [diff] [blame] | 664 | public boolean isDeviceLocked(int userId) throws RemoteException { |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 665 | userId = ActivityManager.handleIncomingUser(getCallingPid(), getCallingUid(), userId, |
Adrian Roos | 50bfeec | 2014-11-20 16:21:11 +0100 | [diff] [blame] | 666 | false /* allowAll */, true /* requireFull */, "isDeviceLocked", null); |
Clara Bayarri | a177111 | 2015-12-18 16:29:18 +0000 | [diff] [blame^] | 667 | if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userId)) { |
Clara Bayarri | 56878a9 | 2015-10-29 15:43:55 +0000 | [diff] [blame] | 668 | userId = resolveProfileParent(userId); |
| 669 | } |
Adrian Roos | 50bfeec | 2014-11-20 16:21:11 +0100 | [diff] [blame] | 670 | |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 671 | return isDeviceLockedInner(userId); |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 672 | } |
| 673 | |
Adrian Roos | 8289368 | 2015-04-02 16:17:46 +0200 | [diff] [blame] | 674 | @Override |
| 675 | public boolean isDeviceSecure(int userId) throws RemoteException { |
| 676 | userId = ActivityManager.handleIncomingUser(getCallingPid(), getCallingUid(), userId, |
| 677 | false /* allowAll */, true /* requireFull */, "isDeviceSecure", null); |
Clara Bayarri | a177111 | 2015-12-18 16:29:18 +0000 | [diff] [blame^] | 678 | if (!mLockPatternUtils.isSeparateProfileChallengeEnabled(userId)) { |
Clara Bayarri | b3987bd | 2015-11-18 16:39:34 -0800 | [diff] [blame] | 679 | userId = resolveProfileParent(userId); |
| 680 | } |
Adrian Roos | 8289368 | 2015-04-02 16:17:46 +0200 | [diff] [blame] | 681 | |
| 682 | long token = Binder.clearCallingIdentity(); |
| 683 | try { |
Clara Bayarri | a177111 | 2015-12-18 16:29:18 +0000 | [diff] [blame^] | 684 | return mLockPatternUtils.isSecure(userId); |
Adrian Roos | 8289368 | 2015-04-02 16:17:46 +0200 | [diff] [blame] | 685 | } finally { |
| 686 | Binder.restoreCallingIdentity(token); |
| 687 | } |
| 688 | } |
| 689 | |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 690 | private void enforceReportPermission() { |
Adrian Roos | 2c12cfa | 2014-06-25 23:28:53 +0200 | [diff] [blame] | 691 | mContext.enforceCallingOrSelfPermission( |
| 692 | Manifest.permission.ACCESS_KEYGUARD_SECURE_STORAGE, "reporting trust events"); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 693 | } |
| 694 | |
| 695 | private void enforceListenerPermission() { |
| 696 | mContext.enforceCallingPermission(Manifest.permission.TRUST_LISTENER, |
| 697 | "register trust listener"); |
| 698 | } |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 699 | |
| 700 | @Override |
| 701 | protected void dump(FileDescriptor fd, final PrintWriter fout, String[] args) { |
| 702 | mContext.enforceCallingPermission(Manifest.permission.DUMP, |
| 703 | "dumping TrustManagerService"); |
Adrian Roos | 49d5345 | 2014-10-24 15:48:39 +0200 | [diff] [blame] | 704 | if (isSafeMode()) { |
| 705 | fout.println("disabled because the system is in safe mode."); |
| 706 | return; |
| 707 | } |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 708 | if (!mTrustAgentsCanRun) { |
| 709 | fout.println("disabled because the third-party apps can't run yet."); |
| 710 | return; |
| 711 | } |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 712 | final List<UserInfo> userInfos = mUserManager.getUsers(true /* excludeDying */); |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 713 | mHandler.runWithScissors(new Runnable() { |
| 714 | @Override |
| 715 | public void run() { |
| 716 | fout.println("Trust manager state:"); |
| 717 | for (UserInfo user : userInfos) { |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 718 | dumpUser(fout, user, user.id == mCurrentUser); |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 719 | } |
| 720 | } |
| 721 | }, 1500); |
| 722 | } |
| 723 | |
| 724 | private void dumpUser(PrintWriter fout, UserInfo user, boolean isCurrent) { |
| 725 | fout.printf(" User \"%s\" (id=%d, flags=%#x)", |
| 726 | user.name, user.id, user.flags); |
Xiaohui Chen | 7cb69df | 2015-07-13 16:01:01 -0700 | [diff] [blame] | 727 | if (!user.supportsSwitchToByUser()) { |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 728 | fout.println("(managed profile)"); |
| 729 | fout.println(" disabled because switching to this user is not possible."); |
| 730 | return; |
| 731 | } |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 732 | if (isCurrent) { |
| 733 | fout.print(" (current)"); |
| 734 | } |
| 735 | fout.print(": trusted=" + dumpBool(aggregateIsTrusted(user.id))); |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 736 | fout.print(", trustManaged=" + dumpBool(aggregateIsTrustManaged(user.id))); |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 737 | fout.print(", deviceLocked=" + dumpBool(isDeviceLockedInner(user.id))); |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 738 | fout.print(", strongAuthRequired=" + dumpHex( |
| 739 | mStrongAuthTracker.getStrongAuthForUser(user.id))); |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 740 | fout.println(); |
| 741 | fout.println(" Enabled agents:"); |
| 742 | boolean duplicateSimpleNames = false; |
| 743 | ArraySet<String> simpleNames = new ArraySet<String>(); |
| 744 | for (AgentInfo info : mActiveAgents) { |
| 745 | if (info.userId != user.id) { continue; } |
| 746 | boolean trusted = info.agent.isTrusted(); |
| 747 | fout.print(" "); fout.println(info.component.flattenToShortString()); |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 748 | fout.print(" bound=" + dumpBool(info.agent.isBound())); |
| 749 | fout.print(", connected=" + dumpBool(info.agent.isConnected())); |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 750 | fout.print(", managingTrust=" + dumpBool(info.agent.isManagingTrust())); |
| 751 | fout.print(", trusted=" + dumpBool(trusted)); |
| 752 | fout.println(); |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 753 | if (trusted) { |
| 754 | fout.println(" message=\"" + info.agent.getMessage() + "\""); |
| 755 | } |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 756 | if (!info.agent.isConnected()) { |
| 757 | String restartTime = TrustArchive.formatDuration( |
| 758 | info.agent.getScheduledRestartUptimeMillis() |
| 759 | - SystemClock.uptimeMillis()); |
| 760 | fout.println(" restartScheduledAt=" + restartTime); |
| 761 | } |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 762 | if (!simpleNames.add(TrustArchive.getSimpleName(info.component))) { |
| 763 | duplicateSimpleNames = true; |
| 764 | } |
| 765 | } |
| 766 | fout.println(" Events:"); |
| 767 | mArchive.dump(fout, 50, user.id, " " /* linePrefix */, duplicateSimpleNames); |
| 768 | fout.println(); |
| 769 | } |
| 770 | |
| 771 | private String dumpBool(boolean b) { |
| 772 | return b ? "1" : "0"; |
| 773 | } |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 774 | |
| 775 | private String dumpHex(int i) { |
| 776 | return "0x" + Integer.toHexString(i); |
| 777 | } |
Clara Bayarri | 56878a9 | 2015-10-29 15:43:55 +0000 | [diff] [blame] | 778 | |
| 779 | @Override |
| 780 | public void setDeviceLockedForUser(int userId, boolean value) { |
| 781 | mHandler.obtainMessage(MSG_SET_DEVICE_LOCKED, value ? 1 : 0, userId) |
| 782 | .sendToTarget(); |
| 783 | } |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 784 | }; |
| 785 | |
Adrian Roos | bcd0765 | 2014-10-22 16:57:16 +0200 | [diff] [blame] | 786 | private int resolveProfileParent(int userId) { |
| 787 | long identity = Binder.clearCallingIdentity(); |
| 788 | try { |
| 789 | UserInfo parent = mUserManager.getProfileParent(userId); |
| 790 | if (parent != null) { |
| 791 | return parent.getUserHandle().getIdentifier(); |
| 792 | } |
| 793 | return userId; |
| 794 | } finally { |
| 795 | Binder.restoreCallingIdentity(identity); |
| 796 | } |
| 797 | } |
| 798 | |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 799 | private final Handler mHandler = new Handler() { |
| 800 | @Override |
| 801 | public void handleMessage(Message msg) { |
| 802 | switch (msg.what) { |
| 803 | case MSG_REGISTER_LISTENER: |
| 804 | addListener((ITrustListener) msg.obj); |
| 805 | break; |
| 806 | case MSG_UNREGISTER_LISTENER: |
| 807 | removeListener((ITrustListener) msg.obj); |
| 808 | break; |
| 809 | case MSG_DISPATCH_UNLOCK_ATTEMPT: |
| 810 | dispatchUnlockAttempt(msg.arg1 != 0, msg.arg2); |
| 811 | break; |
| 812 | case MSG_ENABLED_AGENTS_CHANGED: |
Marco Fucci | 4e68f11 | 2014-08-29 12:31:48 -0700 | [diff] [blame] | 813 | refreshAgentList(UserHandle.USER_ALL); |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 814 | // This is also called when the security mode of a user changes. |
| 815 | refreshDeviceLockedForUser(UserHandle.USER_ALL); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 816 | break; |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 817 | case MSG_KEYGUARD_SHOWING_CHANGED: |
Adrian Roos | 7e2e40e | 2014-11-21 15:27:12 +0100 | [diff] [blame] | 818 | refreshDeviceLockedForUser(mCurrentUser); |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 819 | break; |
| 820 | case MSG_START_USER: |
| 821 | case MSG_CLEANUP_USER: |
| 822 | refreshAgentList(msg.arg1); |
| 823 | break; |
| 824 | case MSG_SWITCH_USER: |
| 825 | mCurrentUser = msg.arg1; |
| 826 | refreshDeviceLockedForUser(UserHandle.USER_ALL); |
| 827 | break; |
Clara Bayarri | 56878a9 | 2015-10-29 15:43:55 +0000 | [diff] [blame] | 828 | case MSG_SET_DEVICE_LOCKED: |
| 829 | setDeviceLockedForUser(msg.arg2, msg.arg1 != 0); |
| 830 | break; |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 831 | } |
| 832 | } |
| 833 | }; |
| 834 | |
| 835 | private final PackageMonitor mPackageMonitor = new PackageMonitor() { |
| 836 | @Override |
| 837 | public void onSomePackagesChanged() { |
Marco Fucci | 4e68f11 | 2014-08-29 12:31:48 -0700 | [diff] [blame] | 838 | refreshAgentList(UserHandle.USER_ALL); |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 839 | } |
| 840 | |
| 841 | @Override |
| 842 | public boolean onPackageChanged(String packageName, int uid, String[] components) { |
| 843 | // We're interested in all changes, even if just some components get enabled / disabled. |
| 844 | return true; |
| 845 | } |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 846 | |
| 847 | @Override |
| 848 | public void onPackageDisappeared(String packageName, int reason) { |
| 849 | removeAgentsOfPackage(packageName); |
| 850 | } |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 851 | }; |
Adrian Roos | ca36b95 | 2014-05-16 18:52:29 +0200 | [diff] [blame] | 852 | |
Adrian Roos | b5e4722 | 2015-08-14 15:53:06 -0700 | [diff] [blame] | 853 | private final StrongAuthTracker mStrongAuthTracker = new StrongAuthTracker() { |
| 854 | @Override |
| 855 | public void onStrongAuthRequiredChanged(int userId) { |
| 856 | refreshAgentList(userId); |
| 857 | } |
| 858 | }; |
| 859 | |
Adrian Roos | 9dbe190 | 2014-08-13 18:25:52 +0200 | [diff] [blame] | 860 | private class Receiver extends BroadcastReceiver { |
Adrian Roos | ca36b95 | 2014-05-16 18:52:29 +0200 | [diff] [blame] | 861 | |
| 862 | @Override |
| 863 | public void onReceive(Context context, Intent intent) { |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 864 | String action = intent.getAction(); |
| 865 | if (DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED.equals(action)) { |
Marco Fucci | 4e68f11 | 2014-08-29 12:31:48 -0700 | [diff] [blame] | 866 | refreshAgentList(getSendingUserId()); |
| 867 | updateDevicePolicyFeatures(); |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 868 | } else if (Intent.ACTION_USER_ADDED.equals(action)) { |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 869 | int userId = getUserId(intent); |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 870 | if (userId > 0) { |
| 871 | maybeEnableFactoryTrustAgents(mLockPatternUtils, userId); |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 872 | } |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 873 | } else if (Intent.ACTION_USER_REMOVED.equals(action)) { |
| 874 | int userId = getUserId(intent); |
| 875 | if (userId > 0) { |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 876 | synchronized (mUserIsTrusted) { |
| 877 | mUserIsTrusted.delete(userId); |
| 878 | } |
| 879 | synchronized (mDeviceLockedForUser) { |
| 880 | mDeviceLockedForUser.delete(userId); |
| 881 | } |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 882 | refreshAgentList(userId); |
Adrian Roos | 481a6df | 2014-11-20 19:48:56 +0100 | [diff] [blame] | 883 | refreshDeviceLockedForUser(userId); |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 884 | } |
| 885 | } |
| 886 | } |
| 887 | |
| 888 | private int getUserId(Intent intent) { |
| 889 | int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, -100); |
| 890 | if (userId > 0) { |
| 891 | return userId; |
| 892 | } else { |
| 893 | Slog.wtf(TAG, "EXTRA_USER_HANDLE missing or invalid, value=" + userId); |
| 894 | return -100; |
Adrian Roos | ca36b95 | 2014-05-16 18:52:29 +0200 | [diff] [blame] | 895 | } |
| 896 | } |
| 897 | |
| 898 | public void register(Context context) { |
Adrian Roos | 9dbe190 | 2014-08-13 18:25:52 +0200 | [diff] [blame] | 899 | IntentFilter filter = new IntentFilter(); |
| 900 | filter.addAction(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); |
| 901 | filter.addAction(Intent.ACTION_USER_PRESENT); |
Adrian Roos | 3870d45 | 2014-09-05 18:22:28 +0200 | [diff] [blame] | 902 | filter.addAction(Intent.ACTION_USER_ADDED); |
Adrian Roos | cbe614f | 2014-10-28 20:16:12 +0100 | [diff] [blame] | 903 | filter.addAction(Intent.ACTION_USER_REMOVED); |
Adrian Roos | ca36b95 | 2014-05-16 18:52:29 +0200 | [diff] [blame] | 904 | context.registerReceiverAsUser(this, |
| 905 | UserHandle.ALL, |
Adrian Roos | 9dbe190 | 2014-08-13 18:25:52 +0200 | [diff] [blame] | 906 | filter, |
Adrian Roos | ca36b95 | 2014-05-16 18:52:29 +0200 | [diff] [blame] | 907 | null /* permission */, |
| 908 | null /* scheduler */); |
| 909 | } |
| 910 | } |
Adrian Roos | 82142c2 | 2014-03-27 14:56:59 +0100 | [diff] [blame] | 911 | } |