Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [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 android.bluetooth; |
| 18 | |
Vinit Deshapnde | 1f12cb5 | 2013-08-21 13:09:01 -0700 | [diff] [blame] | 19 | import android.net.BaseNetworkStateTracker; |
fredc | 0f42037 | 2012-04-12 00:02:00 -0700 | [diff] [blame] | 20 | import android.os.IBinder; |
| 21 | import android.os.ServiceManager; |
| 22 | import android.os.INetworkManagementService; |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 23 | import android.content.Context; |
| 24 | import android.net.ConnectivityManager; |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 25 | import android.net.DhcpResults; |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 26 | import android.net.LinkCapabilities; |
| 27 | import android.net.LinkProperties; |
| 28 | import android.net.NetworkInfo; |
| 29 | import android.net.NetworkInfo.DetailedState; |
| 30 | import android.net.NetworkStateTracker; |
| 31 | import android.net.NetworkUtils; |
| 32 | import android.os.Handler; |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 33 | import android.os.Looper; |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 34 | import android.os.Message; |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 35 | import android.os.Messenger; |
| 36 | import android.text.TextUtils; |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 37 | import android.util.Log; |
fredc | 0f42037 | 2012-04-12 00:02:00 -0700 | [diff] [blame] | 38 | import java.net.InterfaceAddress; |
| 39 | import android.net.LinkAddress; |
| 40 | import android.net.RouteInfo; |
| 41 | import java.net.Inet4Address; |
| 42 | import android.os.SystemProperties; |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 43 | |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 44 | import com.android.internal.util.AsyncChannel; |
| 45 | |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 46 | import java.util.concurrent.atomic.AtomicBoolean; |
| 47 | import java.util.concurrent.atomic.AtomicInteger; |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 48 | import java.util.concurrent.atomic.AtomicReference; |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 49 | |
| 50 | /** |
| 51 | * This class tracks the data connection associated with Bluetooth |
| 52 | * reverse tethering. This is a singleton class and an instance will be |
| 53 | * created by ConnectivityService. BluetoothService will call into this |
| 54 | * when a reverse tethered connection needs to be activated. |
| 55 | * |
| 56 | * @hide |
| 57 | */ |
Vinit Deshapnde | 1f12cb5 | 2013-08-21 13:09:01 -0700 | [diff] [blame] | 58 | public class BluetoothTetheringDataTracker extends BaseNetworkStateTracker { |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 59 | private static final String NETWORKTYPE = "BLUETOOTH_TETHER"; |
| 60 | private static final String TAG = "BluetoothTethering"; |
Matthew Xie | 563e414 | 2012-10-09 22:10:37 -0700 | [diff] [blame] | 61 | private static final boolean DBG = true; |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 62 | private static final boolean VDBG = true; |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 63 | |
| 64 | private AtomicBoolean mTeardownRequested = new AtomicBoolean(false); |
| 65 | private AtomicBoolean mPrivateDnsRouteSet = new AtomicBoolean(false); |
| 66 | private AtomicInteger mDefaultGatewayAddr = new AtomicInteger(0); |
| 67 | private AtomicBoolean mDefaultRouteSet = new AtomicBoolean(false); |
| 68 | |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 69 | private final Object mLinkPropertiesLock = new Object(); |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 70 | private final Object mNetworkInfoLock = new Object(); |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 71 | |
| 72 | private BluetoothPan mBluetoothPan; |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 73 | private static String mRevTetheredIface; |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 74 | /* For sending events to connectivity service handler */ |
| 75 | private Handler mCsHandler; |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 76 | private static BluetoothTetheringDataTracker sInstance; |
| 77 | private BtdtHandler mBtdtHandler; |
| 78 | private AtomicReference<AsyncChannel> mAsyncChannel = new AtomicReference<AsyncChannel>(null); |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 79 | |
| 80 | private BluetoothTetheringDataTracker() { |
| 81 | mNetworkInfo = new NetworkInfo(ConnectivityManager.TYPE_BLUETOOTH, 0, NETWORKTYPE, ""); |
| 82 | mLinkProperties = new LinkProperties(); |
| 83 | mLinkCapabilities = new LinkCapabilities(); |
| 84 | |
| 85 | mNetworkInfo.setIsAvailable(false); |
| 86 | setTeardownRequested(false); |
| 87 | } |
| 88 | |
| 89 | public static synchronized BluetoothTetheringDataTracker getInstance() { |
| 90 | if (sInstance == null) sInstance = new BluetoothTetheringDataTracker(); |
| 91 | return sInstance; |
| 92 | } |
| 93 | |
| 94 | public Object Clone() throws CloneNotSupportedException { |
| 95 | throw new CloneNotSupportedException(); |
| 96 | } |
| 97 | |
| 98 | public void setTeardownRequested(boolean isRequested) { |
| 99 | mTeardownRequested.set(isRequested); |
| 100 | } |
| 101 | |
| 102 | public boolean isTeardownRequested() { |
| 103 | return mTeardownRequested.get(); |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Begin monitoring connectivity |
| 108 | */ |
| 109 | public void startMonitoring(Context context, Handler target) { |
Matthew Xie | 563e414 | 2012-10-09 22:10:37 -0700 | [diff] [blame] | 110 | if (DBG) Log.d(TAG, "startMonitoring: target: " + target); |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 111 | mContext = context; |
| 112 | mCsHandler = target; |
Matthew Xie | 563e414 | 2012-10-09 22:10:37 -0700 | [diff] [blame] | 113 | if (VDBG) Log.d(TAG, "startMonitoring: mCsHandler: " + mCsHandler); |
Jaikumar Ganesh | 74ef119 | 2011-02-23 10:22:15 -0800 | [diff] [blame] | 114 | BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter(); |
| 115 | if (adapter != null) { |
| 116 | adapter.getProfileProxy(mContext, mProfileServiceListener, BluetoothProfile.PAN); |
| 117 | } |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 118 | mBtdtHandler = new BtdtHandler(target.getLooper(), this); |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 119 | } |
| 120 | |
Jaikumar Ganesh | 74ef119 | 2011-02-23 10:22:15 -0800 | [diff] [blame] | 121 | private BluetoothProfile.ServiceListener mProfileServiceListener = |
| 122 | new BluetoothProfile.ServiceListener() { |
| 123 | public void onServiceConnected(int profile, BluetoothProfile proxy) { |
| 124 | mBluetoothPan = (BluetoothPan) proxy; |
| 125 | } |
| 126 | public void onServiceDisconnected(int profile) { |
| 127 | mBluetoothPan = null; |
| 128 | } |
| 129 | }; |
| 130 | |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 131 | /** |
| 132 | * Disable connectivity to a network |
| 133 | * TODO: do away with return value after making MobileDataStateTracker async |
| 134 | */ |
| 135 | public boolean teardown() { |
| 136 | mTeardownRequested.set(true); |
Jaikumar Ganesh | 74ef119 | 2011-02-23 10:22:15 -0800 | [diff] [blame] | 137 | if (mBluetoothPan != null) { |
| 138 | for (BluetoothDevice device: mBluetoothPan.getConnectedDevices()) { |
| 139 | mBluetoothPan.disconnect(device); |
| 140 | } |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 141 | } |
| 142 | return true; |
| 143 | } |
| 144 | |
Irfan Sheriff | da6da09 | 2012-08-16 12:49:23 -0700 | [diff] [blame] | 145 | @Override |
| 146 | public void captivePortalCheckComplete() { |
| 147 | // not implemented |
| 148 | } |
| 149 | |
Wink Saville | d747cbc | 2013-08-07 16:22:47 -0700 | [diff] [blame] | 150 | @Override |
| 151 | public void captivePortalCheckCompleted(boolean isCaptivePortal) { |
| 152 | // not implemented |
| 153 | } |
| 154 | |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 155 | /** |
| 156 | * Re-enable connectivity to a network after a {@link #teardown()}. |
| 157 | */ |
| 158 | public boolean reconnect() { |
| 159 | mTeardownRequested.set(false); |
| 160 | //Ignore |
| 161 | return true; |
| 162 | } |
| 163 | |
| 164 | /** |
| 165 | * Turn the wireless radio off for a network. |
| 166 | * @param turnOn {@code true} to turn the radio on, {@code false} |
| 167 | */ |
| 168 | public boolean setRadio(boolean turnOn) { |
| 169 | return true; |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * @return true - If are we currently tethered with another device. |
| 174 | */ |
| 175 | public synchronized boolean isAvailable() { |
| 176 | return mNetworkInfo.isAvailable(); |
| 177 | } |
| 178 | |
| 179 | /** |
| 180 | * Tells the underlying networking system that the caller wants to |
| 181 | * begin using the named feature. The interpretation of {@code feature} |
| 182 | * is completely up to each networking implementation. |
| 183 | * @param feature the name of the feature to be used |
| 184 | * @param callingPid the process ID of the process that is issuing this request |
| 185 | * @param callingUid the user ID of the process that is issuing this request |
| 186 | * @return an integer value representing the outcome of the request. |
| 187 | * The interpretation of this value is specific to each networking |
| 188 | * implementation+feature combination, except that the value {@code -1} |
| 189 | * always indicates failure. |
| 190 | * TODO: needs to go away |
| 191 | */ |
| 192 | public int startUsingNetworkFeature(String feature, int callingPid, int callingUid) { |
| 193 | return -1; |
| 194 | } |
| 195 | |
| 196 | /** |
| 197 | * Tells the underlying networking system that the caller is finished |
| 198 | * using the named feature. The interpretation of {@code feature} |
| 199 | * is completely up to each networking implementation. |
| 200 | * @param feature the name of the feature that is no longer needed. |
| 201 | * @param callingPid the process ID of the process that is issuing this request |
| 202 | * @param callingUid the user ID of the process that is issuing this request |
| 203 | * @return an integer value representing the outcome of the request. |
| 204 | * The interpretation of this value is specific to each networking |
| 205 | * implementation+feature combination, except that the value {@code -1} |
| 206 | * always indicates failure. |
| 207 | * TODO: needs to go away |
| 208 | */ |
| 209 | public int stopUsingNetworkFeature(String feature, int callingPid, int callingUid) { |
| 210 | return -1; |
| 211 | } |
| 212 | |
Jeff Sharkey | 8e28b7d | 2011-08-19 02:24:24 -0700 | [diff] [blame] | 213 | @Override |
| 214 | public void setUserDataEnable(boolean enabled) { |
| 215 | Log.w(TAG, "ignoring setUserDataEnable(" + enabled + ")"); |
| 216 | } |
| 217 | |
| 218 | @Override |
| 219 | public void setPolicyDataEnable(boolean enabled) { |
| 220 | Log.w(TAG, "ignoring setPolicyDataEnable(" + enabled + ")"); |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 221 | } |
| 222 | |
| 223 | /** |
| 224 | * Check if private DNS route is set for the network |
| 225 | */ |
| 226 | public boolean isPrivateDnsRouteSet() { |
| 227 | return mPrivateDnsRouteSet.get(); |
| 228 | } |
| 229 | |
| 230 | /** |
| 231 | * Set a flag indicating private DNS route is set |
| 232 | */ |
| 233 | public void privateDnsRouteSet(boolean enabled) { |
| 234 | mPrivateDnsRouteSet.set(enabled); |
| 235 | } |
| 236 | |
| 237 | /** |
| 238 | * Fetch NetworkInfo for the network |
| 239 | */ |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 240 | public NetworkInfo getNetworkInfo() { |
| 241 | synchronized (mNetworkInfoLock) { |
| 242 | return new NetworkInfo(mNetworkInfo); |
| 243 | } |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 244 | } |
| 245 | |
| 246 | /** |
| 247 | * Fetch LinkProperties for the network |
| 248 | */ |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 249 | public LinkProperties getLinkProperties() { |
| 250 | synchronized (mLinkPropertiesLock) { |
| 251 | return new LinkProperties(mLinkProperties); |
| 252 | } |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | /** |
| 256 | * A capability is an Integer/String pair, the capabilities |
| 257 | * are defined in the class LinkSocket#Key. |
| 258 | * |
| 259 | * @return a copy of this connections capabilities, may be empty but never null. |
| 260 | */ |
| 261 | public LinkCapabilities getLinkCapabilities() { |
| 262 | return new LinkCapabilities(mLinkCapabilities); |
| 263 | } |
| 264 | |
| 265 | /** |
| 266 | * Fetch default gateway address for the network |
| 267 | */ |
| 268 | public int getDefaultGatewayAddr() { |
| 269 | return mDefaultGatewayAddr.get(); |
| 270 | } |
| 271 | |
| 272 | /** |
| 273 | * Check if default route is set |
| 274 | */ |
| 275 | public boolean isDefaultRouteSet() { |
| 276 | return mDefaultRouteSet.get(); |
| 277 | } |
| 278 | |
| 279 | /** |
| 280 | * Set a flag indicating default route is set for the network |
| 281 | */ |
| 282 | public void defaultRouteSet(boolean enabled) { |
| 283 | mDefaultRouteSet.set(enabled); |
| 284 | } |
| 285 | |
| 286 | /** |
| 287 | * Return the system properties name associated with the tcp buffer sizes |
| 288 | * for this network. |
| 289 | */ |
| 290 | public String getTcpBufferSizesPropName() { |
| 291 | return "net.tcp.buffersize.wifi"; |
| 292 | } |
| 293 | |
fredc | 0f42037 | 2012-04-12 00:02:00 -0700 | [diff] [blame] | 294 | private static short countPrefixLength(byte [] mask) { |
| 295 | short count = 0; |
| 296 | for (byte b : mask) { |
| 297 | for (int i = 0; i < 8; ++i) { |
| 298 | if ((b & (1 << i)) != 0) { |
| 299 | ++count; |
| 300 | } |
| 301 | } |
| 302 | } |
| 303 | return count; |
| 304 | } |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 305 | |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 306 | void startReverseTether(final LinkProperties linkProperties) { |
| 307 | if (linkProperties == null || TextUtils.isEmpty(linkProperties.getInterfaceName())) { |
| 308 | Log.e(TAG, "attempted to reverse tether with empty interface"); |
| 309 | return; |
fredc | 0f42037 | 2012-04-12 00:02:00 -0700 | [diff] [blame] | 310 | } |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 311 | synchronized (mLinkPropertiesLock) { |
| 312 | if (mLinkProperties.getInterfaceName() != null) { |
| 313 | Log.e(TAG, "attempted to reverse tether while already in process"); |
| 314 | return; |
| 315 | } |
| 316 | mLinkProperties = linkProperties; |
| 317 | } |
| 318 | Thread dhcpThread = new Thread(new Runnable() { |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 319 | public void run() { |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 320 | //Currently this thread runs independently. |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 321 | DhcpResults dhcpResults = new DhcpResults(); |
| 322 | boolean success = NetworkUtils.runDhcp(linkProperties.getInterfaceName(), |
| 323 | dhcpResults); |
| 324 | synchronized (mLinkPropertiesLock) { |
| 325 | if (linkProperties.getInterfaceName() != mLinkProperties.getInterfaceName()) { |
| 326 | Log.e(TAG, "obsolete DHCP run aborted"); |
fredc | 0f42037 | 2012-04-12 00:02:00 -0700 | [diff] [blame] | 327 | return; |
| 328 | } |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 329 | if (!success) { |
| 330 | Log.e(TAG, "DHCP request error:" + NetworkUtils.getDhcpError()); |
fredc | 0f42037 | 2012-04-12 00:02:00 -0700 | [diff] [blame] | 331 | return; |
| 332 | } |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 333 | mLinkProperties = dhcpResults.linkProperties; |
| 334 | synchronized (mNetworkInfoLock) { |
| 335 | mNetworkInfo.setIsAvailable(true); |
| 336 | mNetworkInfo.setDetailedState(DetailedState.CONNECTED, null, null); |
| 337 | if (mCsHandler != null) { |
| 338 | Message msg = mCsHandler.obtainMessage(EVENT_STATE_CHANGED, |
| 339 | new NetworkInfo(mNetworkInfo)); |
| 340 | msg.sendToTarget(); |
| 341 | } |
| 342 | } |
| 343 | return; |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 344 | } |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 345 | } |
| 346 | }); |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 347 | dhcpThread.start(); |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 348 | } |
| 349 | |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 350 | void stopReverseTether() { |
| 351 | synchronized (mLinkPropertiesLock) { |
| 352 | if (TextUtils.isEmpty(mLinkProperties.getInterfaceName())) { |
| 353 | Log.e(TAG, "attempted to stop reverse tether with nothing tethered"); |
| 354 | return; |
| 355 | } |
| 356 | NetworkUtils.stopDhcp(mLinkProperties.getInterfaceName()); |
| 357 | mLinkProperties.clear(); |
| 358 | synchronized (mNetworkInfoLock) { |
| 359 | mNetworkInfo.setIsAvailable(false); |
| 360 | mNetworkInfo.setDetailedState(DetailedState.DISCONNECTED, null, null); |
| 361 | |
| 362 | if (mCsHandler != null) { |
| 363 | mCsHandler.obtainMessage(EVENT_STATE_CHANGED, new NetworkInfo(mNetworkInfo)). |
| 364 | sendToTarget(); |
| 365 | } |
| 366 | } |
zzy | 7329e70 | 2012-04-27 12:15:57 -0700 | [diff] [blame] | 367 | } |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 368 | } |
Robert Greenwalt | d55a6b4 | 2011-03-25 13:09:25 -0700 | [diff] [blame] | 369 | |
| 370 | public void setDependencyMet(boolean met) { |
| 371 | // not supported on this network |
| 372 | } |
Lorenzo Colitti | 69edd64 | 2013-03-07 11:01:12 -0800 | [diff] [blame] | 373 | |
| 374 | @Override |
| 375 | public void addStackedLink(LinkProperties link) { |
| 376 | mLinkProperties.addStackedLink(link); |
| 377 | } |
| 378 | |
| 379 | @Override |
| 380 | public void removeStackedLink(LinkProperties link) { |
| 381 | mLinkProperties.removeStackedLink(link); |
| 382 | } |
Robert Greenwalt | 665e1ae | 2012-08-21 19:27:00 -0700 | [diff] [blame] | 383 | |
| 384 | static class BtdtHandler extends Handler { |
| 385 | private AsyncChannel mStackChannel; |
| 386 | private final BluetoothTetheringDataTracker mBtdt; |
| 387 | |
| 388 | BtdtHandler(Looper looper, BluetoothTetheringDataTracker parent) { |
| 389 | super(looper); |
| 390 | mBtdt = parent; |
| 391 | } |
| 392 | |
| 393 | @Override |
| 394 | public void handleMessage(Message msg) { |
| 395 | switch (msg.what) { |
| 396 | case AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: |
| 397 | if (VDBG) Log.d(TAG, "got CMD_CHANNEL_HALF_CONNECTED"); |
| 398 | if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { |
| 399 | AsyncChannel ac = (AsyncChannel)msg.obj; |
| 400 | if (mBtdt.mAsyncChannel.compareAndSet(null, ac) == false) { |
| 401 | Log.e(TAG, "Trying to set mAsyncChannel twice!"); |
| 402 | } else { |
| 403 | ac.sendMessage( |
| 404 | AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); |
| 405 | } |
| 406 | } |
| 407 | break; |
| 408 | case AsyncChannel.CMD_CHANNEL_DISCONNECTED: |
| 409 | if (VDBG) Log.d(TAG, "got CMD_CHANNEL_DISCONNECTED"); |
| 410 | mBtdt.stopReverseTether(); |
| 411 | mBtdt.mAsyncChannel.set(null); |
| 412 | break; |
| 413 | case NetworkStateTracker.EVENT_NETWORK_CONNECTED: |
| 414 | LinkProperties linkProperties = (LinkProperties)(msg.obj); |
| 415 | if (VDBG) Log.d(TAG, "got EVENT_NETWORK_CONNECTED, " + linkProperties); |
| 416 | mBtdt.startReverseTether(linkProperties); |
| 417 | break; |
| 418 | case NetworkStateTracker.EVENT_NETWORK_DISCONNECTED: |
| 419 | linkProperties = (LinkProperties)(msg.obj); |
| 420 | if (VDBG) Log.d(TAG, "got EVENT_NETWORK_DISCONNECTED, " + linkProperties); |
| 421 | mBtdt.stopReverseTether(); |
| 422 | break; |
| 423 | } |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | @Override |
| 428 | public void supplyMessenger(Messenger messenger) { |
| 429 | if (messenger != null) { |
| 430 | new AsyncChannel().connect(mContext, mBtdtHandler, messenger); |
| 431 | } |
| 432 | } |
Jaikumar Ganesh | 15c7439 | 2010-12-21 22:31:44 -0800 | [diff] [blame] | 433 | } |