Etan Cohen | 20d329b | 2015-09-29 13:49:02 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 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 android.net.wifi.nan; |
| 18 | |
| 19 | import android.os.Binder; |
| 20 | import android.os.IBinder; |
| 21 | import android.os.RemoteException; |
| 22 | import android.util.Log; |
| 23 | |
| 24 | /** |
| 25 | * This class provides the primary API for managing Wi-Fi NAN operation: |
| 26 | * including discovery and data-links. Get an instance of this class by calling |
| 27 | * {@link android.content.Context#getSystemService(String) |
| 28 | * Context.getSystemService(Context.WIFI_NAN_SERVICE)}. |
| 29 | * <p> |
| 30 | * The class provides access to: |
| 31 | * <ul> |
| 32 | * <li>Configure a NAN connection and register for events. |
| 33 | * <li>Create publish and subscribe sessions. |
| 34 | * <li>Create NAN network specifier to be used to create a NAN network. |
| 35 | * </ul> |
| 36 | * |
| 37 | * @hide PROPOSED_NAN_API |
| 38 | */ |
| 39 | public class WifiNanManager { |
| 40 | private static final String TAG = "WifiNanManager"; |
Etan Cohen | 7d6c389 | 2016-02-11 14:57:00 -0800 | [diff] [blame] | 41 | private static final boolean DBG = false; |
Etan Cohen | 20d329b | 2015-09-29 13:49:02 -0700 | [diff] [blame] | 42 | private static final boolean VDBG = false; // STOPSHIP if true |
| 43 | |
| 44 | private IBinder mBinder; |
| 45 | |
| 46 | private IWifiNanManager mService; |
| 47 | |
| 48 | /** |
| 49 | * {@hide} |
| 50 | */ |
| 51 | public WifiNanManager(IWifiNanManager service) { |
| 52 | mService = service; |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * Re-connect to the Wi-Fi NAN service - enabling the application to execute |
| 57 | * {@link WifiNanManager} APIs. Application don't normally need to call this |
| 58 | * API since it is executed in the constructor. However, applications which |
| 59 | * have explicitly {@link WifiNanManager#disconnect()} need to call this |
| 60 | * function to re-connect. |
| 61 | * |
| 62 | * @param listener A listener extended from {@link WifiNanEventListener}. |
| 63 | * @param events The set of events to be delivered to the {@code listener}. |
| 64 | * OR'd event flags from {@link WifiNanEventListener |
| 65 | * NanEventListener.LISTEN*}. |
| 66 | */ |
| 67 | public void connect(WifiNanEventListener listener, int events) { |
| 68 | try { |
| 69 | if (VDBG) Log.v(TAG, "connect()"); |
| 70 | if (listener == null) { |
| 71 | throw new IllegalArgumentException("Invalid listener - must not be null"); |
| 72 | } |
| 73 | if (mBinder == null) { |
| 74 | mBinder = new Binder(); |
| 75 | } |
| 76 | mService.connect(mBinder, listener.callback, events); |
| 77 | } catch (RemoteException e) { |
| 78 | Log.w(TAG, "connect RemoteException (FYI - ignoring): " + e); |
| 79 | } |
| 80 | } |
| 81 | |
| 82 | /** |
| 83 | * Disconnect from the Wi-Fi NAN service and destroy all outstanding |
| 84 | * operations - i.e. all publish and subscribes are terminated, any |
| 85 | * outstanding data-link is shut-down, and all requested NAN configurations |
| 86 | * are cancelled. |
| 87 | * <p> |
| 88 | * An application may then re-connect using |
| 89 | * {@link WifiNanManager#connect(WifiNanEventListener, int)} . |
| 90 | */ |
| 91 | public void disconnect() { |
| 92 | try { |
| 93 | if (VDBG) Log.v(TAG, "disconnect()"); |
| 94 | mService.disconnect(mBinder); |
| 95 | mBinder = null; |
| 96 | } catch (RemoteException e) { |
| 97 | Log.w(TAG, "disconnect RemoteException (FYI - ignoring): " + e); |
| 98 | } |
| 99 | } |
| 100 | |
| 101 | /** |
| 102 | * Requests a NAN configuration, specified by {@link ConfigRequest}. Note |
| 103 | * that NAN is a shared resource and the device can only be a member of a |
| 104 | * single cluster. Thus the service may merge configuration requests from |
| 105 | * multiple applications and configure NAN differently from individual |
| 106 | * requests. |
| 107 | * <p> |
| 108 | * The {@link WifiNanEventListener#onConfigCompleted(ConfigRequest)} will be |
| 109 | * called when configuration is completed (if a listener is registered for |
| 110 | * this specific event). |
| 111 | * |
| 112 | * @param configRequest The requested NAN configuration. |
| 113 | */ |
| 114 | public void requestConfig(ConfigRequest configRequest) { |
| 115 | if (VDBG) Log.v(TAG, "requestConfig(): configRequest=" + configRequest); |
| 116 | try { |
| 117 | mService.requestConfig(configRequest); |
| 118 | } catch (RemoteException e) { |
| 119 | Log.w(TAG, "requestConfig RemoteException (FYI - ignoring): " + e); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Request a NAN publish session. The results of the publish session |
| 125 | * operation will result in callbacks to the indicated listener: |
| 126 | * {@link WifiNanSessionListener NanSessionListener.on*}. |
| 127 | * |
| 128 | * @param publishData The {@link PublishData} specifying the contents of the |
| 129 | * publish session. |
| 130 | * @param publishSettings The {@link PublishSettings} specifying the |
| 131 | * settings for the publish session. |
| 132 | * @param listener The {@link WifiNanSessionListener} derived objects to be used |
| 133 | * for the event callbacks specified by {@code events}. |
| 134 | * @param events The list of events to be delivered to the {@code listener} |
| 135 | * object. An OR'd value of {@link WifiNanSessionListener |
| 136 | * NanSessionListener.LISTEN_*}. |
| 137 | * @return The {@link WifiNanPublishSession} which can be used to further |
| 138 | * control the publish session. |
| 139 | */ |
| 140 | public WifiNanPublishSession publish(PublishData publishData, PublishSettings publishSettings, |
| 141 | WifiNanSessionListener listener, int events) { |
| 142 | return publishRaw(publishData, publishSettings, listener, |
| 143 | events | WifiNanSessionListener.LISTEN_HIDDEN_FLAGS); |
| 144 | } |
| 145 | |
| 146 | /** |
| 147 | * Same as publish(*) but does not modify the event flag |
| 148 | * |
| 149 | * @hide |
| 150 | */ |
| 151 | public WifiNanPublishSession publishRaw(PublishData publishData, |
| 152 | PublishSettings publishSettings, WifiNanSessionListener listener, int events) { |
| 153 | if (VDBG) Log.v(TAG, "publish(): data='" + publishData + "', settings=" + publishSettings); |
| 154 | |
| 155 | if (publishSettings.mPublishType == PublishSettings.PUBLISH_TYPE_UNSOLICITED |
| 156 | && publishData.mRxFilterLength != 0) { |
| 157 | throw new IllegalArgumentException("Invalid publish data & settings: UNSOLICITED " |
| 158 | + "publishes (active) can't have an Rx filter"); |
| 159 | } |
| 160 | if (publishSettings.mPublishType == PublishSettings.PUBLISH_TYPE_SOLICITED |
| 161 | && publishData.mTxFilterLength != 0) { |
| 162 | throw new IllegalArgumentException("Invalid publish data & settings: SOLICITED " |
| 163 | + "publishes (passive) can't have a Tx filter"); |
| 164 | } |
| 165 | if (listener == null) { |
| 166 | throw new IllegalArgumentException("Invalid listener - must not be null"); |
| 167 | } |
| 168 | |
| 169 | int sessionId; |
| 170 | |
| 171 | try { |
| 172 | sessionId = mService.createSession(listener.callback, events); |
| 173 | if (DBG) Log.d(TAG, "publish: session created - sessionId=" + sessionId); |
| 174 | mService.publish(sessionId, publishData, publishSettings); |
| 175 | } catch (RemoteException e) { |
| 176 | Log.w(TAG, "createSession/publish RemoteException: " + e); |
| 177 | return null; |
| 178 | } |
| 179 | |
| 180 | return new WifiNanPublishSession(this, sessionId); |
| 181 | } |
| 182 | |
| 183 | /** |
| 184 | * {@hide} |
| 185 | */ |
| 186 | public void publish(int sessionId, PublishData publishData, PublishSettings publishSettings) { |
| 187 | if (VDBG) Log.v(TAG, "publish(): data='" + publishData + "', settings=" + publishSettings); |
| 188 | |
| 189 | if (publishSettings.mPublishType == PublishSettings.PUBLISH_TYPE_UNSOLICITED |
| 190 | && publishData.mRxFilterLength != 0) { |
| 191 | throw new IllegalArgumentException("Invalid publish data & settings: UNSOLICITED " |
| 192 | + "publishes (active) can't have an Rx filter"); |
| 193 | } |
| 194 | if (publishSettings.mPublishType == PublishSettings.PUBLISH_TYPE_SOLICITED |
| 195 | && publishData.mTxFilterLength != 0) { |
| 196 | throw new IllegalArgumentException("Invalid publish data & settings: SOLICITED " |
| 197 | + "publishes (passive) can't have a Tx filter"); |
| 198 | } |
| 199 | |
| 200 | try { |
| 201 | mService.publish(sessionId, publishData, publishSettings); |
| 202 | } catch (RemoteException e) { |
| 203 | Log.w(TAG, "publish RemoteException: " + e); |
| 204 | } |
| 205 | } |
| 206 | /** |
| 207 | * Request a NAN subscribe session. The results of the subscribe session |
| 208 | * operation will result in callbacks to the indicated listener: |
| 209 | * {@link WifiNanSessionListener NanSessionListener.on*}. |
| 210 | * |
| 211 | * @param subscribeData The {@link SubscribeData} specifying the contents of |
| 212 | * the subscribe session. |
| 213 | * @param subscribeSettings The {@link SubscribeSettings} specifying the |
| 214 | * settings for the subscribe session. |
| 215 | * @param listener The {@link WifiNanSessionListener} derived objects to be used |
| 216 | * for the event callbacks specified by {@code events}. |
| 217 | * @param events The list of events to be delivered to the {@code listener} |
| 218 | * object. An OR'd value of {@link WifiNanSessionListener |
| 219 | * NanSessionListener.LISTEN_*}. |
| 220 | * @return The {@link WifiNanSubscribeSession} which can be used to further |
| 221 | * control the subscribe session. |
| 222 | */ |
| 223 | public WifiNanSubscribeSession subscribe(SubscribeData subscribeData, |
| 224 | SubscribeSettings subscribeSettings, |
| 225 | WifiNanSessionListener listener, int events) { |
| 226 | return subscribeRaw(subscribeData, subscribeSettings, listener, |
| 227 | events | WifiNanSessionListener.LISTEN_HIDDEN_FLAGS); |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * Same as subscribe(*) but does not modify the event flag |
| 232 | * |
| 233 | * @hide |
| 234 | */ |
| 235 | public WifiNanSubscribeSession subscribeRaw(SubscribeData subscribeData, |
| 236 | SubscribeSettings subscribeSettings, WifiNanSessionListener listener, int events) { |
| 237 | if (VDBG) { |
| 238 | Log.v(TAG, "subscribe(): data='" + subscribeData + "', settings=" + subscribeSettings); |
| 239 | } |
| 240 | |
| 241 | if (subscribeSettings.mSubscribeType == SubscribeSettings.SUBSCRIBE_TYPE_ACTIVE |
| 242 | && subscribeData.mRxFilterLength != 0) { |
| 243 | throw new IllegalArgumentException( |
| 244 | "Invalid subscribe data & settings: ACTIVE subscribes can't have an Rx filter"); |
| 245 | } |
| 246 | if (subscribeSettings.mSubscribeType == SubscribeSettings.SUBSCRIBE_TYPE_PASSIVE |
| 247 | && subscribeData.mTxFilterLength != 0) { |
| 248 | throw new IllegalArgumentException( |
| 249 | "Invalid subscribe data & settings: PASSIVE subscribes can't have a Tx filter"); |
| 250 | } |
| 251 | |
| 252 | int sessionId; |
| 253 | |
| 254 | try { |
| 255 | sessionId = mService.createSession(listener.callback, events); |
| 256 | if (DBG) Log.d(TAG, "subscribe: session created - sessionId=" + sessionId); |
| 257 | mService.subscribe(sessionId, subscribeData, subscribeSettings); |
| 258 | } catch (RemoteException e) { |
| 259 | Log.w(TAG, "createSession/subscribe RemoteException: " + e); |
| 260 | return null; |
| 261 | } |
| 262 | |
| 263 | return new WifiNanSubscribeSession(this, sessionId); |
| 264 | } |
| 265 | |
| 266 | /** |
| 267 | * {@hide} |
| 268 | */ |
| 269 | public void subscribe(int sessionId, SubscribeData subscribeData, |
| 270 | SubscribeSettings subscribeSettings) { |
| 271 | if (VDBG) { |
| 272 | Log.v(TAG, "subscribe(): data='" + subscribeData + "', settings=" + subscribeSettings); |
| 273 | } |
| 274 | |
| 275 | if (subscribeSettings.mSubscribeType == SubscribeSettings.SUBSCRIBE_TYPE_ACTIVE |
| 276 | && subscribeData.mRxFilterLength != 0) { |
| 277 | throw new IllegalArgumentException( |
| 278 | "Invalid subscribe data & settings: ACTIVE subscribes can't have an Rx filter"); |
| 279 | } |
| 280 | if (subscribeSettings.mSubscribeType == SubscribeSettings.SUBSCRIBE_TYPE_PASSIVE |
| 281 | && subscribeData.mTxFilterLength != 0) { |
| 282 | throw new IllegalArgumentException( |
| 283 | "Invalid subscribe data & settings: PASSIVE subscribes can't have a Tx filter"); |
| 284 | } |
| 285 | |
| 286 | try { |
| 287 | mService.subscribe(sessionId, subscribeData, subscribeSettings); |
| 288 | } catch (RemoteException e) { |
| 289 | Log.w(TAG, "subscribe RemoteException: " + e); |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | /** |
| 294 | * {@hide} |
| 295 | */ |
| 296 | public void stopSession(int sessionId) { |
| 297 | if (DBG) Log.d(TAG, "Stop NAN session #" + sessionId); |
| 298 | |
| 299 | try { |
| 300 | mService.stopSession(sessionId); |
| 301 | } catch (RemoteException e) { |
| 302 | Log.w(TAG, "stopSession RemoteException (FYI - ignoring): " + e); |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | /** |
| 307 | * {@hide} |
| 308 | */ |
| 309 | public void destroySession(int sessionId) { |
| 310 | if (DBG) Log.d(TAG, "Destroy NAN session #" + sessionId); |
| 311 | |
| 312 | try { |
| 313 | mService.destroySession(sessionId); |
| 314 | } catch (RemoteException e) { |
| 315 | Log.w(TAG, "destroySession RemoteException (FYI - ignoring): " + e); |
| 316 | } |
| 317 | } |
| 318 | |
| 319 | /** |
| 320 | * {@hide} |
| 321 | */ |
Etan Cohen | b0fde5d | 2016-01-26 08:51:02 -0800 | [diff] [blame] | 322 | public void sendMessage(int sessionId, int peerId, byte[] message, int messageLength, |
| 323 | int messageId) { |
Etan Cohen | 20d329b | 2015-09-29 13:49:02 -0700 | [diff] [blame] | 324 | try { |
| 325 | if (VDBG) { |
| 326 | Log.v(TAG, "sendMessage(): sessionId=" + sessionId + ", peerId=" + peerId |
Etan Cohen | b0fde5d | 2016-01-26 08:51:02 -0800 | [diff] [blame] | 327 | + ", messageLength=" + messageLength + ", messageId=" + messageId); |
Etan Cohen | 20d329b | 2015-09-29 13:49:02 -0700 | [diff] [blame] | 328 | } |
Etan Cohen | b0fde5d | 2016-01-26 08:51:02 -0800 | [diff] [blame] | 329 | mService.sendMessage(sessionId, peerId, message, messageLength, messageId); |
Etan Cohen | 20d329b | 2015-09-29 13:49:02 -0700 | [diff] [blame] | 330 | } catch (RemoteException e) { |
| 331 | Log.w(TAG, "subscribe RemoteException (FYI - ignoring): " + e); |
| 332 | } |
| 333 | } |
| 334 | } |