Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 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; |
| 18 | |
| 19 | import android.content.Context; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 20 | import android.content.ContentResolver; |
| 21 | import android.content.Intent; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 22 | import android.content.pm.PackageManager; |
Irfan Sheriff | 919aca5 | 2012-06-01 16:44:13 -0700 | [diff] [blame] | 23 | import android.database.ContentObserver; |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 24 | import android.net.nsd.NsdServiceInfo; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 25 | import android.net.nsd.DnsSdTxtRecord; |
| 26 | import android.net.nsd.INsdManager; |
| 27 | import android.net.nsd.NsdManager; |
| 28 | import android.os.Binder; |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 29 | import android.os.HandlerThread; |
| 30 | import android.os.Handler; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 31 | import android.os.Message; |
| 32 | import android.os.Messenger; |
Dianne Hackborn | 5ac72a2 | 2012-08-29 18:32:08 -0700 | [diff] [blame] | 33 | import android.os.UserHandle; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 34 | import android.provider.Settings; |
Philip P. Moltmann | 312c61e | 2016-03-16 10:15:39 -0700 | [diff] [blame] | 35 | import android.util.Base64; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 36 | import android.util.Slog; |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 37 | import android.util.SparseArray; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 38 | |
| 39 | import java.io.FileDescriptor; |
| 40 | import java.io.PrintWriter; |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 41 | import java.net.InetAddress; |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 42 | import java.util.Arrays; |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 43 | import java.util.HashMap; |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 44 | import java.util.concurrent.CountDownLatch; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 45 | |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 46 | import com.android.internal.annotations.VisibleForTesting; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 47 | import com.android.internal.util.AsyncChannel; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 48 | import com.android.internal.util.Protocol; |
| 49 | import com.android.internal.util.State; |
| 50 | import com.android.internal.util.StateMachine; |
Christopher Lane | 771cd65 | 2014-04-14 16:31:27 -0700 | [diff] [blame] | 51 | import com.android.server.NativeDaemonConnector.Command; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 52 | |
| 53 | /** |
| 54 | * Network Service Discovery Service handles remote service discovery operation requests by |
| 55 | * implementing the INsdManager interface. |
| 56 | * |
| 57 | * @hide |
| 58 | */ |
| 59 | public class NsdService extends INsdManager.Stub { |
| 60 | private static final String TAG = "NsdService"; |
| 61 | private static final String MDNS_TAG = "mDnsConnector"; |
| 62 | |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 63 | private static final boolean DBG = true; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 64 | |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 65 | private final Context mContext; |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 66 | private final NsdSettings mNsdSettings; |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 67 | private final NsdStateMachine mNsdStateMachine; |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 68 | private final DaemonConnection mDaemon; |
| 69 | private final NativeCallbackReceiver mDaemonCallback; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 70 | |
| 71 | /** |
| 72 | * Clients receiving asynchronous messages |
| 73 | */ |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 74 | private final HashMap<Messenger, ClientInfo> mClients = new HashMap<>(); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 75 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 76 | /* A map from unique id to client info */ |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 77 | private final SparseArray<ClientInfo> mIdToClientInfoMap= new SparseArray<>(); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 78 | |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 79 | private final AsyncChannel mReplyChannel = new AsyncChannel(); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 80 | |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 81 | private static final int INVALID_ID = 0; |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 82 | private int mUniqueId = 1; |
| 83 | |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 84 | private class NsdStateMachine extends StateMachine { |
| 85 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 86 | private final DefaultState mDefaultState = new DefaultState(); |
| 87 | private final DisabledState mDisabledState = new DisabledState(); |
| 88 | private final EnabledState mEnabledState = new EnabledState(); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 89 | |
| 90 | @Override |
Wink Saville | bbf30dfd | 2012-05-29 12:40:46 -0700 | [diff] [blame] | 91 | protected String getWhatToString(int what) { |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 92 | return NsdManager.nameOf(what); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 93 | } |
| 94 | |
Irfan Sheriff | 919aca5 | 2012-06-01 16:44:13 -0700 | [diff] [blame] | 95 | /** |
| 96 | * Observes the NSD on/off setting, and takes action when changed. |
| 97 | */ |
| 98 | private void registerForNsdSetting() { |
| 99 | ContentObserver contentObserver = new ContentObserver(this.getHandler()) { |
| 100 | @Override |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 101 | public void onChange(boolean selfChange) { |
| 102 | if (isNsdEnabled()) { |
| 103 | mNsdStateMachine.sendMessage(NsdManager.ENABLE); |
| 104 | } else { |
| 105 | mNsdStateMachine.sendMessage(NsdManager.DISABLE); |
Irfan Sheriff | 919aca5 | 2012-06-01 16:44:13 -0700 | [diff] [blame] | 106 | } |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 107 | } |
Irfan Sheriff | 919aca5 | 2012-06-01 16:44:13 -0700 | [diff] [blame] | 108 | }; |
| 109 | |
| 110 | mContext.getContentResolver().registerContentObserver( |
Jeff Sharkey | 625239a | 2012-09-26 22:03:49 -0700 | [diff] [blame] | 111 | Settings.Global.getUriFor(Settings.Global.NSD_ON), |
Irfan Sheriff | 919aca5 | 2012-06-01 16:44:13 -0700 | [diff] [blame] | 112 | false, contentObserver); |
| 113 | } |
| 114 | |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 115 | NsdStateMachine(String name, Handler handler) { |
| 116 | super(name, handler); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 117 | addState(mDefaultState); |
| 118 | addState(mDisabledState, mDefaultState); |
| 119 | addState(mEnabledState, mDefaultState); |
| 120 | if (isNsdEnabled()) { |
| 121 | setInitialState(mEnabledState); |
| 122 | } else { |
| 123 | setInitialState(mDisabledState); |
| 124 | } |
Wink Saville | bbf30dfd | 2012-05-29 12:40:46 -0700 | [diff] [blame] | 125 | setLogRecSize(25); |
Irfan Sheriff | 919aca5 | 2012-06-01 16:44:13 -0700 | [diff] [blame] | 126 | registerForNsdSetting(); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 127 | } |
| 128 | |
| 129 | class DefaultState extends State { |
| 130 | @Override |
| 131 | public boolean processMessage(Message msg) { |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 132 | ClientInfo cInfo = null; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 133 | switch (msg.what) { |
| 134 | case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: |
| 135 | if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { |
| 136 | AsyncChannel c = (AsyncChannel) msg.obj; |
| 137 | if (DBG) Slog.d(TAG, "New client listening to asynchronous messages"); |
| 138 | c.sendMessage(AsyncChannel.CMD_CHANNEL_FULLY_CONNECTED); |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 139 | cInfo = new ClientInfo(c, msg.replyTo); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 140 | mClients.put(msg.replyTo, cInfo); |
| 141 | } else { |
| 142 | Slog.e(TAG, "Client connection failure, error=" + msg.arg1); |
| 143 | } |
| 144 | break; |
| 145 | case AsyncChannel.CMD_CHANNEL_DISCONNECTED: |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 146 | switch (msg.arg1) { |
| 147 | case AsyncChannel.STATUS_SEND_UNSUCCESSFUL: |
| 148 | Slog.e(TAG, "Send failed, client connection lost"); |
| 149 | break; |
| 150 | case AsyncChannel.STATUS_REMOTE_DISCONNECTION: |
| 151 | if (DBG) Slog.d(TAG, "Client disconnected"); |
| 152 | break; |
| 153 | default: |
| 154 | if (DBG) Slog.d(TAG, "Client connection lost with reason: " + msg.arg1); |
| 155 | break; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 156 | } |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 157 | cInfo = mClients.get(msg.replyTo); |
| 158 | if (cInfo != null) { |
| 159 | cInfo.expungeAllRequests(); |
| 160 | mClients.remove(msg.replyTo); |
| 161 | } |
| 162 | //Last client |
| 163 | if (mClients.size() == 0) { |
| 164 | stopMDnsDaemon(); |
| 165 | } |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 166 | break; |
| 167 | case AsyncChannel.CMD_CHANNEL_FULL_CONNECTION: |
| 168 | AsyncChannel ac = new AsyncChannel(); |
| 169 | ac.connect(mContext, getHandler(), msg.replyTo); |
| 170 | break; |
| 171 | case NsdManager.DISCOVER_SERVICES: |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 172 | replyToMessage(msg, NsdManager.DISCOVER_SERVICES_FAILED, |
| 173 | NsdManager.FAILURE_INTERNAL_ERROR); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 174 | break; |
| 175 | case NsdManager.STOP_DISCOVERY: |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 176 | replyToMessage(msg, NsdManager.STOP_DISCOVERY_FAILED, |
| 177 | NsdManager.FAILURE_INTERNAL_ERROR); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 178 | break; |
| 179 | case NsdManager.REGISTER_SERVICE: |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 180 | replyToMessage(msg, NsdManager.REGISTER_SERVICE_FAILED, |
| 181 | NsdManager.FAILURE_INTERNAL_ERROR); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 182 | break; |
| 183 | case NsdManager.UNREGISTER_SERVICE: |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 184 | replyToMessage(msg, NsdManager.UNREGISTER_SERVICE_FAILED, |
| 185 | NsdManager.FAILURE_INTERNAL_ERROR); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 186 | break; |
| 187 | case NsdManager.RESOLVE_SERVICE: |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 188 | replyToMessage(msg, NsdManager.RESOLVE_SERVICE_FAILED, |
| 189 | NsdManager.FAILURE_INTERNAL_ERROR); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 190 | break; |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 191 | case NsdManager.NATIVE_DAEMON_EVENT: |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 192 | default: |
| 193 | Slog.e(TAG, "Unhandled " + msg); |
| 194 | return NOT_HANDLED; |
| 195 | } |
| 196 | return HANDLED; |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | class DisabledState extends State { |
| 201 | @Override |
| 202 | public void enter() { |
| 203 | sendNsdStateChangeBroadcast(false); |
| 204 | } |
| 205 | |
| 206 | @Override |
| 207 | public boolean processMessage(Message msg) { |
| 208 | switch (msg.what) { |
| 209 | case NsdManager.ENABLE: |
| 210 | transitionTo(mEnabledState); |
| 211 | break; |
| 212 | default: |
| 213 | return NOT_HANDLED; |
| 214 | } |
| 215 | return HANDLED; |
| 216 | } |
| 217 | } |
| 218 | |
| 219 | class EnabledState extends State { |
| 220 | @Override |
| 221 | public void enter() { |
| 222 | sendNsdStateChangeBroadcast(true); |
| 223 | if (mClients.size() > 0) { |
| 224 | startMDnsDaemon(); |
| 225 | } |
| 226 | } |
| 227 | |
| 228 | @Override |
| 229 | public void exit() { |
| 230 | if (mClients.size() > 0) { |
| 231 | stopMDnsDaemon(); |
| 232 | } |
| 233 | } |
| 234 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 235 | private boolean requestLimitReached(ClientInfo clientInfo) { |
| 236 | if (clientInfo.mClientIds.size() >= ClientInfo.MAX_LIMIT) { |
| 237 | if (DBG) Slog.d(TAG, "Exceeded max outstanding requests " + clientInfo); |
| 238 | return true; |
| 239 | } |
| 240 | return false; |
| 241 | } |
| 242 | |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 243 | private void storeRequestMap(int clientId, int globalId, ClientInfo clientInfo, int what) { |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 244 | clientInfo.mClientIds.put(clientId, globalId); |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 245 | clientInfo.mClientRequests.put(clientId, what); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 246 | mIdToClientInfoMap.put(globalId, clientInfo); |
| 247 | } |
| 248 | |
| 249 | private void removeRequestMap(int clientId, int globalId, ClientInfo clientInfo) { |
| 250 | clientInfo.mClientIds.remove(clientId); |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 251 | clientInfo.mClientRequests.remove(clientId); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 252 | mIdToClientInfoMap.remove(globalId); |
| 253 | } |
| 254 | |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 255 | @Override |
| 256 | public boolean processMessage(Message msg) { |
| 257 | ClientInfo clientInfo; |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 258 | NsdServiceInfo servInfo; |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 259 | int id; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 260 | switch (msg.what) { |
Hugo Benichi | 23dba85 | 2017-04-05 14:43:29 +0900 | [diff] [blame] | 261 | case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 262 | //First client |
| 263 | if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL && |
| 264 | mClients.size() == 0) { |
| 265 | startMDnsDaemon(); |
| 266 | } |
Hugo Benichi | 23dba85 | 2017-04-05 14:43:29 +0900 | [diff] [blame] | 267 | return NOT_HANDLED; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 268 | case AsyncChannel.CMD_CHANNEL_DISCONNECTED: |
Hugo Benichi | 23dba85 | 2017-04-05 14:43:29 +0900 | [diff] [blame] | 269 | return NOT_HANDLED; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 270 | case NsdManager.DISABLE: |
| 271 | //TODO: cleanup clients |
| 272 | transitionTo(mDisabledState); |
| 273 | break; |
| 274 | case NsdManager.DISCOVER_SERVICES: |
| 275 | if (DBG) Slog.d(TAG, "Discover services"); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 276 | servInfo = (NsdServiceInfo) msg.obj; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 277 | clientInfo = mClients.get(msg.replyTo); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 278 | |
| 279 | if (requestLimitReached(clientInfo)) { |
| 280 | replyToMessage(msg, NsdManager.DISCOVER_SERVICES_FAILED, |
| 281 | NsdManager.FAILURE_MAX_LIMIT); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 282 | break; |
| 283 | } |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 284 | |
| 285 | id = getUniqueId(); |
| 286 | if (discoverServices(id, servInfo.getServiceType())) { |
| 287 | if (DBG) { |
| 288 | Slog.d(TAG, "Discover " + msg.arg2 + " " + id + |
| 289 | servInfo.getServiceType()); |
| 290 | } |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 291 | storeRequestMap(msg.arg2, id, clientInfo, msg.what); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 292 | replyToMessage(msg, NsdManager.DISCOVER_SERVICES_STARTED, servInfo); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 293 | } else { |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 294 | stopServiceDiscovery(id); |
| 295 | replyToMessage(msg, NsdManager.DISCOVER_SERVICES_FAILED, |
| 296 | NsdManager.FAILURE_INTERNAL_ERROR); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 297 | } |
| 298 | break; |
| 299 | case NsdManager.STOP_DISCOVERY: |
| 300 | if (DBG) Slog.d(TAG, "Stop service discovery"); |
| 301 | clientInfo = mClients.get(msg.replyTo); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 302 | |
| 303 | try { |
| 304 | id = clientInfo.mClientIds.get(msg.arg2).intValue(); |
| 305 | } catch (NullPointerException e) { |
| 306 | replyToMessage(msg, NsdManager.STOP_DISCOVERY_FAILED, |
| 307 | NsdManager.FAILURE_INTERNAL_ERROR); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 308 | break; |
| 309 | } |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 310 | removeRequestMap(msg.arg2, id, clientInfo); |
| 311 | if (stopServiceDiscovery(id)) { |
| 312 | replyToMessage(msg, NsdManager.STOP_DISCOVERY_SUCCEEDED); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 313 | } else { |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 314 | replyToMessage(msg, NsdManager.STOP_DISCOVERY_FAILED, |
| 315 | NsdManager.FAILURE_INTERNAL_ERROR); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 316 | } |
| 317 | break; |
| 318 | case NsdManager.REGISTER_SERVICE: |
| 319 | if (DBG) Slog.d(TAG, "Register service"); |
| 320 | clientInfo = mClients.get(msg.replyTo); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 321 | if (requestLimitReached(clientInfo)) { |
| 322 | replyToMessage(msg, NsdManager.REGISTER_SERVICE_FAILED, |
| 323 | NsdManager.FAILURE_MAX_LIMIT); |
| 324 | break; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 325 | } |
| 326 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 327 | id = getUniqueId(); |
| 328 | if (registerService(id, (NsdServiceInfo) msg.obj)) { |
| 329 | if (DBG) Slog.d(TAG, "Register " + msg.arg2 + " " + id); |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 330 | storeRequestMap(msg.arg2, id, clientInfo, msg.what); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 331 | // Return success after mDns reports success |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 332 | } else { |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 333 | unregisterService(id); |
| 334 | replyToMessage(msg, NsdManager.REGISTER_SERVICE_FAILED, |
| 335 | NsdManager.FAILURE_INTERNAL_ERROR); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 336 | } |
| 337 | break; |
| 338 | case NsdManager.UNREGISTER_SERVICE: |
| 339 | if (DBG) Slog.d(TAG, "unregister service"); |
| 340 | clientInfo = mClients.get(msg.replyTo); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 341 | try { |
| 342 | id = clientInfo.mClientIds.get(msg.arg2).intValue(); |
| 343 | } catch (NullPointerException e) { |
| 344 | replyToMessage(msg, NsdManager.UNREGISTER_SERVICE_FAILED, |
| 345 | NsdManager.FAILURE_INTERNAL_ERROR); |
| 346 | break; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 347 | } |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 348 | removeRequestMap(msg.arg2, id, clientInfo); |
| 349 | if (unregisterService(id)) { |
| 350 | replyToMessage(msg, NsdManager.UNREGISTER_SERVICE_SUCCEEDED); |
| 351 | } else { |
| 352 | replyToMessage(msg, NsdManager.UNREGISTER_SERVICE_FAILED, |
| 353 | NsdManager.FAILURE_INTERNAL_ERROR); |
| 354 | } |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 355 | break; |
| 356 | case NsdManager.RESOLVE_SERVICE: |
| 357 | if (DBG) Slog.d(TAG, "Resolve service"); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 358 | servInfo = (NsdServiceInfo) msg.obj; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 359 | clientInfo = mClients.get(msg.replyTo); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 360 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 361 | |
| 362 | if (clientInfo.mResolvedService != null) { |
| 363 | replyToMessage(msg, NsdManager.RESOLVE_SERVICE_FAILED, |
| 364 | NsdManager.FAILURE_ALREADY_ACTIVE); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 365 | break; |
| 366 | } |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 367 | |
| 368 | id = getUniqueId(); |
| 369 | if (resolveService(id, servInfo)) { |
| 370 | clientInfo.mResolvedService = new NsdServiceInfo(); |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 371 | storeRequestMap(msg.arg2, id, clientInfo, msg.what); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 372 | } else { |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 373 | replyToMessage(msg, NsdManager.RESOLVE_SERVICE_FAILED, |
| 374 | NsdManager.FAILURE_INTERNAL_ERROR); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 375 | } |
| 376 | break; |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 377 | case NsdManager.NATIVE_DAEMON_EVENT: |
| 378 | NativeEvent event = (NativeEvent) msg.obj; |
Sreeram Ramachandran | ef12884 | 2014-09-03 15:45:59 -0700 | [diff] [blame] | 379 | if (!handleNativeEvent(event.code, event.raw, event.cooked)) { |
Hugo Benichi | 23dba85 | 2017-04-05 14:43:29 +0900 | [diff] [blame] | 380 | return NOT_HANDLED; |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 381 | } |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 382 | break; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 383 | default: |
Hugo Benichi | 23dba85 | 2017-04-05 14:43:29 +0900 | [diff] [blame] | 384 | return NOT_HANDLED; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 385 | } |
Hugo Benichi | 23dba85 | 2017-04-05 14:43:29 +0900 | [diff] [blame] | 386 | return HANDLED; |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 387 | } |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 388 | |
| 389 | private boolean handleNativeEvent(int code, String raw, String[] cooked) { |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 390 | NsdServiceInfo servInfo; |
| 391 | int id = Integer.parseInt(cooked[1]); |
| 392 | ClientInfo clientInfo = mIdToClientInfoMap.get(id); |
| 393 | if (clientInfo == null) { |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 394 | String name = NativeResponseCode.nameOf(code); |
| 395 | Slog.e(TAG, String.format("id %d for %s has no client mapping", id, name)); |
Hugo Benichi | 23dba85 | 2017-04-05 14:43:29 +0900 | [diff] [blame] | 396 | return false; |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 397 | } |
| 398 | |
| 399 | /* This goes in response as msg.arg2 */ |
Christopher Lane | 5a57790 | 2014-04-25 18:39:07 -0700 | [diff] [blame] | 400 | int clientId = clientInfo.getClientId(id); |
| 401 | if (clientId < 0) { |
Vinit Deshapnde | 8ed09e8 | 2013-06-25 19:45:03 -0700 | [diff] [blame] | 402 | // This can happen because of race conditions. For example, |
| 403 | // SERVICE_FOUND may race with STOP_SERVICE_DISCOVERY, |
| 404 | // and we may get in this situation. |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 405 | String name = NativeResponseCode.nameOf(code); |
| 406 | Slog.d(TAG, String.format( |
| 407 | "Notification %s for listener id %d that is no longer active", |
| 408 | name, id)); |
Hugo Benichi | 23dba85 | 2017-04-05 14:43:29 +0900 | [diff] [blame] | 409 | return false; |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 410 | } |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 411 | if (DBG) { |
| 412 | String name = NativeResponseCode.nameOf(code); |
| 413 | Slog.d(TAG, String.format("Native daemon message %s: %s", name, raw)); |
| 414 | } |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 415 | switch (code) { |
| 416 | case NativeResponseCode.SERVICE_FOUND: |
| 417 | /* NNN uniqueId serviceName regType domain */ |
Christopher Lane | b72d8b4 | 2014-03-17 16:35:45 -0700 | [diff] [blame] | 418 | servInfo = new NsdServiceInfo(cooked[2], cooked[3]); |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 419 | clientInfo.mChannel.sendMessage(NsdManager.SERVICE_FOUND, 0, |
| 420 | clientId, servInfo); |
| 421 | break; |
| 422 | case NativeResponseCode.SERVICE_LOST: |
| 423 | /* NNN uniqueId serviceName regType domain */ |
Christopher Lane | b72d8b4 | 2014-03-17 16:35:45 -0700 | [diff] [blame] | 424 | servInfo = new NsdServiceInfo(cooked[2], cooked[3]); |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 425 | clientInfo.mChannel.sendMessage(NsdManager.SERVICE_LOST, 0, |
| 426 | clientId, servInfo); |
| 427 | break; |
| 428 | case NativeResponseCode.SERVICE_DISCOVERY_FAILED: |
| 429 | /* NNN uniqueId errorCode */ |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 430 | clientInfo.mChannel.sendMessage(NsdManager.DISCOVER_SERVICES_FAILED, |
| 431 | NsdManager.FAILURE_INTERNAL_ERROR, clientId); |
| 432 | break; |
| 433 | case NativeResponseCode.SERVICE_REGISTERED: |
| 434 | /* NNN regId serviceName regType */ |
Christopher Lane | b72d8b4 | 2014-03-17 16:35:45 -0700 | [diff] [blame] | 435 | servInfo = new NsdServiceInfo(cooked[2], null); |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 436 | clientInfo.mChannel.sendMessage(NsdManager.REGISTER_SERVICE_SUCCEEDED, |
| 437 | id, clientId, servInfo); |
| 438 | break; |
| 439 | case NativeResponseCode.SERVICE_REGISTRATION_FAILED: |
| 440 | /* NNN regId errorCode */ |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 441 | clientInfo.mChannel.sendMessage(NsdManager.REGISTER_SERVICE_FAILED, |
| 442 | NsdManager.FAILURE_INTERNAL_ERROR, clientId); |
| 443 | break; |
| 444 | case NativeResponseCode.SERVICE_UPDATED: |
| 445 | /* NNN regId */ |
| 446 | break; |
| 447 | case NativeResponseCode.SERVICE_UPDATE_FAILED: |
| 448 | /* NNN regId errorCode */ |
| 449 | break; |
| 450 | case NativeResponseCode.SERVICE_RESOLVED: |
| 451 | /* NNN resolveId fullName hostName port txtlen txtdata */ |
Sreeram Ramachandran | ef12884 | 2014-09-03 15:45:59 -0700 | [diff] [blame] | 452 | int index = 0; |
| 453 | while (index < cooked[2].length() && cooked[2].charAt(index) != '.') { |
| 454 | if (cooked[2].charAt(index) == '\\') { |
| 455 | ++index; |
| 456 | } |
| 457 | ++index; |
| 458 | } |
| 459 | if (index >= cooked[2].length()) { |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 460 | Slog.e(TAG, "Invalid service found " + raw); |
| 461 | break; |
| 462 | } |
| 463 | String name = cooked[2].substring(0, index); |
| 464 | String rest = cooked[2].substring(index); |
| 465 | String type = rest.replace(".local.", ""); |
| 466 | |
Sreeram Ramachandran | ef12884 | 2014-09-03 15:45:59 -0700 | [diff] [blame] | 467 | name = unescape(name); |
| 468 | |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 469 | clientInfo.mResolvedService.setServiceName(name); |
| 470 | clientInfo.mResolvedService.setServiceType(type); |
| 471 | clientInfo.mResolvedService.setPort(Integer.parseInt(cooked[4])); |
Philip P. Moltmann | 312c61e | 2016-03-16 10:15:39 -0700 | [diff] [blame] | 472 | clientInfo.mResolvedService.setTxtRecords(cooked[6]); |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 473 | |
| 474 | stopResolveService(id); |
Vinit Deshapnde | 4038724 | 2013-11-12 15:36:37 -0800 | [diff] [blame] | 475 | removeRequestMap(clientId, id, clientInfo); |
| 476 | |
| 477 | int id2 = getUniqueId(); |
| 478 | if (getAddrInfo(id2, cooked[3])) { |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 479 | storeRequestMap(clientId, id2, clientInfo, NsdManager.RESOLVE_SERVICE); |
Vinit Deshapnde | 4038724 | 2013-11-12 15:36:37 -0800 | [diff] [blame] | 480 | } else { |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 481 | clientInfo.mChannel.sendMessage(NsdManager.RESOLVE_SERVICE_FAILED, |
| 482 | NsdManager.FAILURE_INTERNAL_ERROR, clientId); |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 483 | clientInfo.mResolvedService = null; |
| 484 | } |
| 485 | break; |
| 486 | case NativeResponseCode.SERVICE_RESOLUTION_FAILED: |
| 487 | /* NNN resolveId errorCode */ |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 488 | stopResolveService(id); |
| 489 | removeRequestMap(clientId, id, clientInfo); |
| 490 | clientInfo.mResolvedService = null; |
| 491 | clientInfo.mChannel.sendMessage(NsdManager.RESOLVE_SERVICE_FAILED, |
| 492 | NsdManager.FAILURE_INTERNAL_ERROR, clientId); |
| 493 | break; |
| 494 | case NativeResponseCode.SERVICE_GET_ADDR_FAILED: |
| 495 | /* NNN resolveId errorCode */ |
| 496 | stopGetAddrInfo(id); |
| 497 | removeRequestMap(clientId, id, clientInfo); |
| 498 | clientInfo.mResolvedService = null; |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 499 | clientInfo.mChannel.sendMessage(NsdManager.RESOLVE_SERVICE_FAILED, |
| 500 | NsdManager.FAILURE_INTERNAL_ERROR, clientId); |
| 501 | break; |
| 502 | case NativeResponseCode.SERVICE_GET_ADDR_SUCCESS: |
| 503 | /* NNN resolveId hostname ttl addr */ |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 504 | try { |
| 505 | clientInfo.mResolvedService.setHost(InetAddress.getByName(cooked[4])); |
| 506 | clientInfo.mChannel.sendMessage(NsdManager.RESOLVE_SERVICE_SUCCEEDED, |
| 507 | 0, clientId, clientInfo.mResolvedService); |
| 508 | } catch (java.net.UnknownHostException e) { |
| 509 | clientInfo.mChannel.sendMessage(NsdManager.RESOLVE_SERVICE_FAILED, |
| 510 | NsdManager.FAILURE_INTERNAL_ERROR, clientId); |
| 511 | } |
| 512 | stopGetAddrInfo(id); |
| 513 | removeRequestMap(clientId, id, clientInfo); |
| 514 | clientInfo.mResolvedService = null; |
| 515 | break; |
| 516 | default: |
Hugo Benichi | 23dba85 | 2017-04-05 14:43:29 +0900 | [diff] [blame] | 517 | return false; |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 518 | } |
Hugo Benichi | 23dba85 | 2017-04-05 14:43:29 +0900 | [diff] [blame] | 519 | return true; |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 520 | } |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 521 | } |
| 522 | } |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 523 | |
Sreeram Ramachandran | ef12884 | 2014-09-03 15:45:59 -0700 | [diff] [blame] | 524 | private String unescape(String s) { |
| 525 | StringBuilder sb = new StringBuilder(s.length()); |
| 526 | for (int i = 0; i < s.length(); ++i) { |
| 527 | char c = s.charAt(i); |
| 528 | if (c == '\\') { |
| 529 | if (++i >= s.length()) { |
| 530 | Slog.e(TAG, "Unexpected end of escape sequence in: " + s); |
| 531 | break; |
| 532 | } |
| 533 | c = s.charAt(i); |
| 534 | if (c != '.' && c != '\\') { |
| 535 | if (i + 2 >= s.length()) { |
| 536 | Slog.e(TAG, "Unexpected end of escape sequence in: " + s); |
| 537 | break; |
| 538 | } |
| 539 | c = (char) ((c-'0') * 100 + (s.charAt(i+1)-'0') * 10 + (s.charAt(i+2)-'0')); |
| 540 | i += 2; |
| 541 | } |
| 542 | } |
| 543 | sb.append(c); |
| 544 | } |
| 545 | return sb.toString(); |
| 546 | } |
| 547 | |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 548 | @VisibleForTesting |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 549 | NsdService(Context ctx, NsdSettings settings, Handler handler, DaemonConnectionSupplier fn) { |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 550 | mContext = ctx; |
| 551 | mNsdSettings = settings; |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 552 | mNsdStateMachine = new NsdStateMachine(TAG, handler); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 553 | mNsdStateMachine.start(); |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 554 | mDaemonCallback = new NativeCallbackReceiver(); |
| 555 | mDaemon = fn.get(mDaemonCallback); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 556 | } |
| 557 | |
| 558 | public static NsdService create(Context context) throws InterruptedException { |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 559 | NsdSettings settings = NsdSettings.makeDefault(context); |
| 560 | HandlerThread thread = new HandlerThread(TAG); |
| 561 | thread.start(); |
| 562 | Handler handler = new Handler(thread.getLooper()); |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 563 | NsdService service = new NsdService(context, settings, handler, DaemonConnection::new); |
| 564 | service.mDaemonCallback.awaitConnection(); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 565 | return service; |
| 566 | } |
| 567 | |
| 568 | public Messenger getMessenger() { |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 569 | mContext.enforceCallingOrSelfPermission(android.Manifest.permission.INTERNET, "NsdService"); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 570 | return new Messenger(mNsdStateMachine.getHandler()); |
| 571 | } |
| 572 | |
| 573 | public void setEnabled(boolean enable) { |
| 574 | mContext.enforceCallingOrSelfPermission(android.Manifest.permission.CONNECTIVITY_INTERNAL, |
| 575 | "NsdService"); |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 576 | mNsdSettings.putEnabledStatus(enable); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 577 | if (enable) { |
| 578 | mNsdStateMachine.sendMessage(NsdManager.ENABLE); |
| 579 | } else { |
| 580 | mNsdStateMachine.sendMessage(NsdManager.DISABLE); |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | private void sendNsdStateChangeBroadcast(boolean enabled) { |
Irfan Sheriff | 54ac7a5 | 2012-04-19 10:26:34 -0700 | [diff] [blame] | 585 | final Intent intent = new Intent(NsdManager.ACTION_NSD_STATE_CHANGED); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 586 | intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| 587 | if (enabled) { |
| 588 | intent.putExtra(NsdManager.EXTRA_NSD_STATE, NsdManager.NSD_STATE_ENABLED); |
| 589 | } else { |
| 590 | intent.putExtra(NsdManager.EXTRA_NSD_STATE, NsdManager.NSD_STATE_DISABLED); |
| 591 | } |
Dianne Hackborn | 5ac72a2 | 2012-08-29 18:32:08 -0700 | [diff] [blame] | 592 | mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 593 | } |
| 594 | |
| 595 | private boolean isNsdEnabled() { |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 596 | boolean ret = mNsdSettings.isEnabled(); |
| 597 | if (DBG) { |
| 598 | Slog.d(TAG, "Network service discovery is " + (ret ? "enabled" : "disabled")); |
| 599 | } |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 600 | return ret; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 601 | } |
| 602 | |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 603 | private int getUniqueId() { |
| 604 | if (++mUniqueId == INVALID_ID) return ++mUniqueId; |
| 605 | return mUniqueId; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 606 | } |
| 607 | |
Sreeram Ramachandran | 03666c7 | 2014-07-19 23:21:46 -0700 | [diff] [blame] | 608 | /* These should be in sync with system/netd/server/ResponseCode.h */ |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 609 | static final class NativeResponseCode { |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 610 | public static final int SERVICE_DISCOVERY_FAILED = 602; |
| 611 | public static final int SERVICE_FOUND = 603; |
| 612 | public static final int SERVICE_LOST = 604; |
| 613 | |
| 614 | public static final int SERVICE_REGISTRATION_FAILED = 605; |
| 615 | public static final int SERVICE_REGISTERED = 606; |
| 616 | |
| 617 | public static final int SERVICE_RESOLUTION_FAILED = 607; |
| 618 | public static final int SERVICE_RESOLVED = 608; |
| 619 | |
| 620 | public static final int SERVICE_UPDATED = 609; |
| 621 | public static final int SERVICE_UPDATE_FAILED = 610; |
| 622 | |
| 623 | public static final int SERVICE_GET_ADDR_FAILED = 611; |
| 624 | public static final int SERVICE_GET_ADDR_SUCCESS = 612; |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 625 | |
| 626 | private static final SparseArray<String> CODE_NAMES = new SparseArray<>(); |
| 627 | static { |
| 628 | CODE_NAMES.put(SERVICE_DISCOVERY_FAILED, "SERVICE_DISCOVERY_FAILED"); |
| 629 | CODE_NAMES.put(SERVICE_FOUND, "SERVICE_FOUND"); |
| 630 | CODE_NAMES.put(SERVICE_LOST, "SERVICE_LOST"); |
| 631 | CODE_NAMES.put(SERVICE_REGISTRATION_FAILED, "SERVICE_REGISTRATION_FAILED"); |
| 632 | CODE_NAMES.put(SERVICE_REGISTERED, "SERVICE_REGISTERED"); |
| 633 | CODE_NAMES.put(SERVICE_RESOLUTION_FAILED, "SERVICE_RESOLUTION_FAILED"); |
| 634 | CODE_NAMES.put(SERVICE_RESOLVED, "SERVICE_RESOLVED"); |
| 635 | CODE_NAMES.put(SERVICE_UPDATED, "SERVICE_UPDATED"); |
| 636 | CODE_NAMES.put(SERVICE_UPDATE_FAILED, "SERVICE_UPDATE_FAILED"); |
| 637 | CODE_NAMES.put(SERVICE_GET_ADDR_FAILED, "SERVICE_GET_ADDR_FAILED"); |
| 638 | CODE_NAMES.put(SERVICE_GET_ADDR_SUCCESS, "SERVICE_GET_ADDR_SUCCESS"); |
| 639 | } |
| 640 | |
| 641 | static String nameOf(int code) { |
| 642 | String name = CODE_NAMES.get(code); |
| 643 | if (name == null) { |
| 644 | return Integer.toString(code); |
| 645 | } |
| 646 | return name; |
| 647 | } |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 648 | } |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 649 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 650 | private class NativeEvent { |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 651 | final int code; |
| 652 | final String raw; |
Sreeram Ramachandran | ef12884 | 2014-09-03 15:45:59 -0700 | [diff] [blame] | 653 | final String[] cooked; |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 654 | |
Sreeram Ramachandran | ef12884 | 2014-09-03 15:45:59 -0700 | [diff] [blame] | 655 | NativeEvent(int code, String raw, String[] cooked) { |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 656 | this.code = code; |
| 657 | this.raw = raw; |
Sreeram Ramachandran | ef12884 | 2014-09-03 15:45:59 -0700 | [diff] [blame] | 658 | this.cooked = cooked; |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 659 | } |
| 660 | } |
| 661 | |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 662 | class NativeCallbackReceiver implements INativeDaemonConnectorCallbacks { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 663 | private final CountDownLatch connected = new CountDownLatch(1); |
| 664 | |
| 665 | public void awaitConnection() throws InterruptedException { |
| 666 | connected.await(); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 667 | } |
| 668 | |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 669 | @Override |
| 670 | public void onDaemonConnected() { |
| 671 | connected.countDown(); |
| 672 | } |
| 673 | |
| 674 | @Override |
Dianne Hackborn | 77b987f | 2014-02-26 16:20:52 -0800 | [diff] [blame] | 675 | public boolean onCheckHoldWakeLock(int code) { |
| 676 | return false; |
| 677 | } |
| 678 | |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 679 | @Override |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 680 | public boolean onEvent(int code, String raw, String[] cooked) { |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 681 | // TODO: NDC translates a message to a callback, we could enhance NDC to |
| 682 | // directly interact with a state machine through messages |
Sreeram Ramachandran | ef12884 | 2014-09-03 15:45:59 -0700 | [diff] [blame] | 683 | NativeEvent event = new NativeEvent(code, raw, cooked); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 684 | mNsdStateMachine.sendMessage(NsdManager.NATIVE_DAEMON_EVENT, event); |
| 685 | return true; |
| 686 | } |
| 687 | } |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 688 | |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 689 | interface DaemonConnectionSupplier { |
| 690 | DaemonConnection get(NativeCallbackReceiver callback); |
| 691 | } |
| 692 | |
| 693 | @VisibleForTesting |
| 694 | public static class DaemonConnection { |
| 695 | final NativeDaemonConnector mNativeConnector; |
| 696 | |
| 697 | DaemonConnection(NativeCallbackReceiver callback) { |
| 698 | mNativeConnector = new NativeDaemonConnector(callback, "mdns", 10, MDNS_TAG, 25, null); |
| 699 | new Thread(mNativeConnector, MDNS_TAG).start(); |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 700 | } |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 701 | |
| 702 | public boolean execute(Object... args) { |
| 703 | if (DBG) { |
| 704 | Slog.d(TAG, "mdnssd " + Arrays.toString(args)); |
| 705 | } |
| 706 | try { |
| 707 | mNativeConnector.execute("mdnssd", args); |
| 708 | } catch (NativeDaemonConnectorException e) { |
| 709 | Slog.e(TAG, "Failed to execute mdnssd " + Arrays.toString(args), e); |
| 710 | return false; |
| 711 | } |
| 712 | return true; |
| 713 | } |
| 714 | |
| 715 | public boolean execute(Command cmd) { |
| 716 | if (DBG) { |
| 717 | Slog.d(TAG, cmd.toString()); |
| 718 | } |
| 719 | try { |
| 720 | mNativeConnector.execute(cmd); |
| 721 | } catch (NativeDaemonConnectorException e) { |
| 722 | Slog.e(TAG, "Failed to execute " + cmd, e); |
| 723 | return false; |
| 724 | } |
| 725 | return true; |
| 726 | } |
| 727 | } |
| 728 | |
| 729 | private boolean startMDnsDaemon() { |
| 730 | return mDaemon.execute("start-service"); |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 731 | } |
| 732 | |
| 733 | private boolean stopMDnsDaemon() { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 734 | return mDaemon.execute("stop-service"); |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 735 | } |
| 736 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 737 | private boolean registerService(int regId, NsdServiceInfo service) { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 738 | if (DBG) { |
| 739 | Slog.d(TAG, "registerService: " + regId + " " + service); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 740 | } |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 741 | String name = service.getServiceName(); |
| 742 | String type = service.getServiceType(); |
| 743 | int port = service.getPort(); |
| 744 | byte[] textRecord = service.getTxtRecord(); |
| 745 | String record = Base64.encodeToString(textRecord, Base64.DEFAULT).replace("\n", ""); |
| 746 | Command cmd = new Command("mdnssd", "register", regId, name, type, port, record); |
| 747 | return mDaemon.execute(cmd); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 748 | } |
| 749 | |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 750 | private boolean unregisterService(int regId) { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 751 | return mDaemon.execute("stop-register", regId); |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 752 | } |
| 753 | |
| 754 | private boolean updateService(int regId, DnsSdTxtRecord t) { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 755 | if (t == null) { |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 756 | return false; |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 757 | } |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 758 | return mDaemon.execute("update", regId, t.size(), t.getRawData()); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 759 | } |
| 760 | |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 761 | private boolean discoverServices(int discoveryId, String serviceType) { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 762 | return mDaemon.execute("discover", discoveryId, serviceType); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 763 | } |
| 764 | |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 765 | private boolean stopServiceDiscovery(int discoveryId) { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 766 | return mDaemon.execute("stop-discover", discoveryId); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 767 | } |
| 768 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 769 | private boolean resolveService(int resolveId, NsdServiceInfo service) { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 770 | String name = service.getServiceName(); |
| 771 | String type = service.getServiceType(); |
| 772 | return mDaemon.execute("resolve", resolveId, name, type, "local."); |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 773 | } |
| 774 | |
| 775 | private boolean stopResolveService(int resolveId) { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 776 | return mDaemon.execute("stop-resolve", resolveId); |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 777 | } |
| 778 | |
| 779 | private boolean getAddrInfo(int resolveId, String hostname) { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 780 | return mDaemon.execute("getaddrinfo", resolveId, hostname); |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 781 | } |
| 782 | |
| 783 | private boolean stopGetAddrInfo(int resolveId) { |
Hugo Benichi | 1fac319 | 2017-04-24 16:19:58 +0900 | [diff] [blame^] | 784 | return mDaemon.execute("stop-getaddrinfo", resolveId); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 785 | } |
| 786 | |
| 787 | @Override |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 788 | public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 789 | if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) |
| 790 | != PackageManager.PERMISSION_GRANTED) { |
| 791 | pw.println("Permission Denial: can't dump ServiceDiscoverService from from pid=" |
| 792 | + Binder.getCallingPid() |
| 793 | + ", uid=" + Binder.getCallingUid()); |
| 794 | return; |
| 795 | } |
| 796 | |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 797 | for (ClientInfo client : mClients.values()) { |
| 798 | pw.println("Client Info"); |
| 799 | pw.println(client); |
| 800 | } |
| 801 | |
| 802 | mNsdStateMachine.dump(fd, pw, args); |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 803 | } |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 804 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 805 | /* arg2 on the source message has an id that needs to be retained in replies |
| 806 | * see NsdManager for details */ |
| 807 | private Message obtainMessage(Message srcMsg) { |
| 808 | Message msg = Message.obtain(); |
| 809 | msg.arg2 = srcMsg.arg2; |
| 810 | return msg; |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 811 | } |
| 812 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 813 | private void replyToMessage(Message msg, int what) { |
| 814 | if (msg.replyTo == null) return; |
| 815 | Message dstMsg = obtainMessage(msg); |
| 816 | dstMsg.what = what; |
| 817 | mReplyChannel.replyToMessage(msg, dstMsg); |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 818 | } |
| 819 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 820 | private void replyToMessage(Message msg, int what, int arg1) { |
| 821 | if (msg.replyTo == null) return; |
| 822 | Message dstMsg = obtainMessage(msg); |
| 823 | dstMsg.what = what; |
| 824 | dstMsg.arg1 = arg1; |
| 825 | mReplyChannel.replyToMessage(msg, dstMsg); |
| 826 | } |
| 827 | |
| 828 | private void replyToMessage(Message msg, int what, Object obj) { |
| 829 | if (msg.replyTo == null) return; |
| 830 | Message dstMsg = obtainMessage(msg); |
| 831 | dstMsg.what = what; |
| 832 | dstMsg.obj = obj; |
| 833 | mReplyChannel.replyToMessage(msg, dstMsg); |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 834 | } |
| 835 | |
| 836 | /* Information tracked per client */ |
| 837 | private class ClientInfo { |
| 838 | |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 839 | private static final int MAX_LIMIT = 10; |
Vairavan Srinivasan | 6727e73 | 2012-08-05 13:14:12 -0700 | [diff] [blame] | 840 | private final AsyncChannel mChannel; |
| 841 | private final Messenger mMessenger; |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 842 | /* Remembers a resolved service until getaddrinfo completes */ |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 843 | private NsdServiceInfo mResolvedService; |
| 844 | |
| 845 | /* A map from client id to unique id sent to mDns */ |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 846 | private final SparseArray<Integer> mClientIds = new SparseArray<>(); |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 847 | |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 848 | /* A map from client id to the type of the request we had received */ |
Hugo Benichi | 2183ba9 | 2017-04-05 14:06:11 +0900 | [diff] [blame] | 849 | private final SparseArray<Integer> mClientRequests = new SparseArray<>(); |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 850 | |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 851 | private ClientInfo(AsyncChannel c, Messenger m) { |
| 852 | mChannel = c; |
| 853 | mMessenger = m; |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 854 | if (DBG) Slog.d(TAG, "New client, channel: " + c + " messenger: " + m); |
| 855 | } |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 856 | |
| 857 | @Override |
| 858 | public String toString() { |
| 859 | StringBuffer sb = new StringBuffer(); |
| 860 | sb.append("mChannel ").append(mChannel).append("\n"); |
| 861 | sb.append("mMessenger ").append(mMessenger).append("\n"); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 862 | sb.append("mResolvedService ").append(mResolvedService).append("\n"); |
Irfan Sheriff | 22af38c | 2012-05-03 16:44:27 -0700 | [diff] [blame] | 863 | for(int i = 0; i< mClientIds.size(); i++) { |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 864 | int clientID = mClientIds.keyAt(i); |
| 865 | sb.append("clientId ").append(clientID). |
| 866 | append(" mDnsId ").append(mClientIds.valueAt(i)). |
| 867 | append(" type ").append(mClientRequests.get(clientID)).append("\n"); |
Irfan Sheriff | 3ef889b | 2012-04-17 23:15:29 -0700 | [diff] [blame] | 868 | } |
| 869 | return sb.toString(); |
| 870 | } |
Dave Platt | f31760c | 2014-03-07 14:48:22 -0800 | [diff] [blame] | 871 | |
| 872 | // Remove any pending requests from the global map when we get rid of a client, |
| 873 | // and send cancellations to the daemon. |
| 874 | private void expungeAllRequests() { |
| 875 | int globalId, clientId, i; |
| 876 | for (i = 0; i < mClientIds.size(); i++) { |
| 877 | clientId = mClientIds.keyAt(i); |
| 878 | globalId = mClientIds.valueAt(i); |
| 879 | mIdToClientInfoMap.remove(globalId); |
| 880 | if (DBG) Slog.d(TAG, "Terminating client-ID " + clientId + |
| 881 | " global-ID " + globalId + " type " + mClientRequests.get(clientId)); |
| 882 | switch (mClientRequests.get(clientId)) { |
| 883 | case NsdManager.DISCOVER_SERVICES: |
| 884 | stopServiceDiscovery(globalId); |
| 885 | break; |
| 886 | case NsdManager.RESOLVE_SERVICE: |
| 887 | stopResolveService(globalId); |
| 888 | break; |
| 889 | case NsdManager.REGISTER_SERVICE: |
| 890 | unregisterService(globalId); |
| 891 | break; |
| 892 | default: |
| 893 | break; |
| 894 | } |
| 895 | } |
| 896 | mClientIds.clear(); |
| 897 | mClientRequests.clear(); |
| 898 | } |
| 899 | |
Christopher Lane | 5a57790 | 2014-04-25 18:39:07 -0700 | [diff] [blame] | 900 | // mClientIds is a sparse array of listener id -> mDnsClient id. For a given mDnsClient id, |
| 901 | // return the corresponding listener id. mDnsClient id is also called a global id. |
| 902 | private int getClientId(final int globalId) { |
| 903 | // This doesn't use mClientIds.indexOfValue because indexOfValue uses == (not .equals) |
| 904 | // while also coercing the int primitives to Integer objects. |
| 905 | for (int i = 0, nSize = mClientIds.size(); i < nSize; i++) { |
| 906 | int mDnsId = mClientIds.valueAt(i); |
| 907 | if (globalId == mDnsId) { |
| 908 | return mClientIds.keyAt(i); |
| 909 | } |
| 910 | } |
| 911 | return -1; |
| 912 | } |
Irfan Sheriff | 817388e | 2012-04-11 14:52:19 -0700 | [diff] [blame] | 913 | } |
Hugo Benichi | cbb1367 | 2017-04-24 11:35:06 +0900 | [diff] [blame] | 914 | |
| 915 | @VisibleForTesting |
| 916 | public interface NsdSettings { |
| 917 | boolean isEnabled(); |
| 918 | void putEnabledStatus(boolean isEnabled); |
| 919 | |
| 920 | static NsdSettings makeDefault(Context context) { |
| 921 | ContentResolver resolver = context.getContentResolver(); |
| 922 | return new NsdSettings() { |
| 923 | @Override |
| 924 | public boolean isEnabled() { |
| 925 | return Settings.Global.getInt(resolver, Settings.Global.NSD_ON, 1) == 1; |
| 926 | } |
| 927 | |
| 928 | @Override |
| 929 | public void putEnabledStatus(boolean isEnabled) { |
| 930 | Settings.Global.putInt(resolver, Settings.Global.NSD_ON, isEnabled ? 1 : 0); |
| 931 | } |
| 932 | }; |
| 933 | } |
| 934 | } |
Irfan Sheriff | 7d024d3 | 2012-03-22 17:01:39 -0700 | [diff] [blame] | 935 | } |