Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [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 | |
| 19 | import android.content.ComponentName; |
| 20 | import android.os.SystemClock; |
| 21 | import android.os.UserHandle; |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 22 | import android.service.trust.TrustAgentService; |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 23 | import android.util.TimeUtils; |
| 24 | |
| 25 | import java.io.PrintWriter; |
| 26 | import java.util.ArrayDeque; |
| 27 | import java.util.Iterator; |
| 28 | |
| 29 | /** |
| 30 | * An archive of trust events. |
| 31 | */ |
| 32 | public class TrustArchive { |
| 33 | private static final int TYPE_GRANT_TRUST = 0; |
| 34 | private static final int TYPE_REVOKE_TRUST = 1; |
| 35 | private static final int TYPE_TRUST_TIMEOUT = 2; |
| 36 | private static final int TYPE_AGENT_DIED = 3; |
Adrian Roos | 7d59b4f | 2014-05-27 20:01:31 +0200 | [diff] [blame] | 37 | private static final int TYPE_AGENT_CONNECTED = 4; |
| 38 | private static final int TYPE_AGENT_STOPPED = 5; |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 39 | private static final int TYPE_MANAGING_TRUST = 6; |
Adrian Roos | 9d6fc92 | 2016-08-10 17:09:55 -0700 | [diff] [blame] | 40 | private static final int TYPE_POLICY_CHANGED = 7; |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 41 | |
| 42 | private static final int HISTORY_LIMIT = 200; |
| 43 | |
| 44 | private static class Event { |
| 45 | final int type; |
| 46 | final int userId; |
| 47 | final ComponentName agent; |
| 48 | final long elapsedTimestamp; |
| 49 | |
| 50 | // grantTrust |
| 51 | final String message; |
| 52 | final long duration; |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 53 | final int flags; |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 54 | |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 55 | // managingTrust |
| 56 | final boolean managingTrust; |
| 57 | |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 58 | private Event(int type, int userId, ComponentName agent, String message, |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 59 | long duration, int flags, boolean managingTrust) { |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 60 | this.type = type; |
| 61 | this.userId = userId; |
| 62 | this.agent = agent; |
| 63 | this.elapsedTimestamp = SystemClock.elapsedRealtime(); |
| 64 | this.message = message; |
| 65 | this.duration = duration; |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 66 | this.flags = flags; |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 67 | this.managingTrust = managingTrust; |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 68 | } |
| 69 | } |
| 70 | |
| 71 | ArrayDeque<Event> mEvents = new ArrayDeque<Event>(); |
| 72 | |
| 73 | public void logGrantTrust(int userId, ComponentName agent, String message, |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 74 | long duration, int flags) { |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 75 | addEvent(new Event(TYPE_GRANT_TRUST, userId, agent, message, duration, |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 76 | flags, false)); |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 77 | } |
| 78 | |
| 79 | public void logRevokeTrust(int userId, ComponentName agent) { |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 80 | addEvent(new Event(TYPE_REVOKE_TRUST, userId, agent, null, 0, 0, false)); |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 81 | } |
| 82 | |
| 83 | public void logTrustTimeout(int userId, ComponentName agent) { |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 84 | addEvent(new Event(TYPE_TRUST_TIMEOUT, userId, agent, null, 0, 0, false)); |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 85 | } |
| 86 | |
| 87 | public void logAgentDied(int userId, ComponentName agent) { |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 88 | addEvent(new Event(TYPE_AGENT_DIED, userId, agent, null, 0, 0, false)); |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 89 | } |
| 90 | |
Adrian Roos | 7d59b4f | 2014-05-27 20:01:31 +0200 | [diff] [blame] | 91 | public void logAgentConnected(int userId, ComponentName agent) { |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 92 | addEvent(new Event(TYPE_AGENT_CONNECTED, userId, agent, null, 0, 0, false)); |
Adrian Roos | 7d59b4f | 2014-05-27 20:01:31 +0200 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | public void logAgentStopped(int userId, ComponentName agent) { |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 96 | addEvent(new Event(TYPE_AGENT_STOPPED, userId, agent, null, 0, 0, false)); |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 97 | } |
| 98 | |
| 99 | public void logManagingTrust(int userId, ComponentName agent, boolean managing) { |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 100 | addEvent(new Event(TYPE_MANAGING_TRUST, userId, agent, null, 0, 0, managing)); |
Adrian Roos | 7d59b4f | 2014-05-27 20:01:31 +0200 | [diff] [blame] | 101 | } |
| 102 | |
Adrian Roos | 9d6fc92 | 2016-08-10 17:09:55 -0700 | [diff] [blame] | 103 | public void logDevicePolicyChanged() { |
| 104 | addEvent(new Event(TYPE_POLICY_CHANGED, UserHandle.USER_ALL, null, null, 0, 0, false)); |
| 105 | } |
| 106 | |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 107 | private void addEvent(Event e) { |
| 108 | if (mEvents.size() >= HISTORY_LIMIT) { |
| 109 | mEvents.removeFirst(); |
| 110 | } |
| 111 | mEvents.addLast(e); |
| 112 | } |
| 113 | |
| 114 | public void dump(PrintWriter writer, int limit, int userId, String linePrefix, |
| 115 | boolean duplicateSimpleNames) { |
| 116 | int count = 0; |
| 117 | Iterator<Event> iter = mEvents.descendingIterator(); |
| 118 | while (iter.hasNext() && count < limit) { |
| 119 | Event ev = iter.next(); |
Adrian Roos | 9d6fc92 | 2016-08-10 17:09:55 -0700 | [diff] [blame] | 120 | if (userId != UserHandle.USER_ALL && userId != ev.userId |
| 121 | && ev.userId != UserHandle.USER_ALL) { |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 122 | continue; |
| 123 | } |
| 124 | |
| 125 | writer.print(linePrefix); |
| 126 | writer.printf("#%-2d %s %s: ", count, formatElapsed(ev.elapsedTimestamp), |
| 127 | dumpType(ev.type)); |
| 128 | if (userId == UserHandle.USER_ALL) { |
| 129 | writer.print("user="); writer.print(ev.userId); writer.print(", "); |
| 130 | } |
Adrian Roos | 9d6fc92 | 2016-08-10 17:09:55 -0700 | [diff] [blame] | 131 | if (ev.agent != null) { |
| 132 | writer.print("agent="); |
| 133 | if (duplicateSimpleNames) { |
| 134 | writer.print(ev.agent.flattenToShortString()); |
| 135 | } else { |
| 136 | writer.print(getSimpleName(ev.agent)); |
| 137 | } |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 138 | } |
| 139 | switch (ev.type) { |
| 140 | case TYPE_GRANT_TRUST: |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 141 | writer.printf(", message=\"%s\", duration=%s, flags=%s", |
| 142 | ev.message, formatDuration(ev.duration), dumpGrantFlags(ev.flags)); |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 143 | break; |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 144 | case TYPE_MANAGING_TRUST: |
| 145 | writer.printf(", managingTrust=" + ev.managingTrust); |
| 146 | break; |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 147 | default: |
| 148 | } |
| 149 | writer.println(); |
| 150 | count++; |
| 151 | } |
| 152 | } |
| 153 | |
Adrian Roos | c5f95ce | 2014-07-24 16:00:46 +0200 | [diff] [blame] | 154 | public static String formatDuration(long duration) { |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 155 | StringBuilder sb = new StringBuilder(); |
| 156 | TimeUtils.formatDuration(duration, sb); |
| 157 | return sb.toString(); |
| 158 | } |
| 159 | |
| 160 | private static String formatElapsed(long elapsed) { |
| 161 | long delta = elapsed - SystemClock.elapsedRealtime(); |
| 162 | long wallTime = delta + System.currentTimeMillis(); |
| 163 | return TimeUtils.logTimeOfDay(wallTime); |
| 164 | } |
| 165 | |
| 166 | /* package */ static String getSimpleName(ComponentName cn) { |
| 167 | String name = cn.getClassName(); |
| 168 | int idx = name.lastIndexOf('.'); |
| 169 | if (idx < name.length() && idx >= 0) { |
| 170 | return name.substring(idx + 1); |
| 171 | } else { |
| 172 | return name; |
| 173 | } |
| 174 | } |
| 175 | |
| 176 | private String dumpType(int type) { |
| 177 | switch (type) { |
| 178 | case TYPE_GRANT_TRUST: |
| 179 | return "GrantTrust"; |
| 180 | case TYPE_REVOKE_TRUST: |
| 181 | return "RevokeTrust"; |
| 182 | case TYPE_TRUST_TIMEOUT: |
| 183 | return "TrustTimeout"; |
| 184 | case TYPE_AGENT_DIED: |
| 185 | return "AgentDied"; |
Adrian Roos | 7d59b4f | 2014-05-27 20:01:31 +0200 | [diff] [blame] | 186 | case TYPE_AGENT_CONNECTED: |
| 187 | return "AgentConnected"; |
| 188 | case TYPE_AGENT_STOPPED: |
| 189 | return "AgentStopped"; |
Adrian Roos | 7861c66 | 2014-07-25 15:37:28 +0200 | [diff] [blame] | 190 | case TYPE_MANAGING_TRUST: |
| 191 | return "ManagingTrust"; |
Adrian Roos | 9d6fc92 | 2016-08-10 17:09:55 -0700 | [diff] [blame] | 192 | case TYPE_POLICY_CHANGED: |
| 193 | return "DevicePolicyChanged"; |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 194 | default: |
| 195 | return "Unknown(" + type + ")"; |
| 196 | } |
| 197 | } |
Adrian Roos | 94e15a5 | 2015-04-16 12:23:18 -0700 | [diff] [blame] | 198 | |
| 199 | private String dumpGrantFlags(int flags) { |
| 200 | StringBuilder sb = new StringBuilder(); |
| 201 | if ((flags & TrustAgentService.FLAG_GRANT_TRUST_INITIATED_BY_USER) != 0) { |
| 202 | if (sb.length() != 0) sb.append('|'); |
| 203 | sb.append("INITIATED_BY_USER"); |
| 204 | } |
| 205 | if ((flags & TrustAgentService.FLAG_GRANT_TRUST_DISMISS_KEYGUARD) != 0) { |
| 206 | if (sb.length() != 0) sb.append('|'); |
| 207 | sb.append("DISMISS_KEYGUARD"); |
| 208 | } |
| 209 | if (sb.length() == 0) { |
| 210 | sb.append('0'); |
| 211 | } |
| 212 | return sb.toString(); |
| 213 | } |
Adrian Roos | 7a4f3d4 | 2014-05-02 12:12:20 +0200 | [diff] [blame] | 214 | } |