| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.server; |
| |
| import static android.Manifest.permission.MANAGE_NETWORK_POLICY; |
| import static android.Manifest.permission.RECEIVE_DATA_ACTIVITY_CHANGE; |
| import static android.net.ConnectivityManager.CONNECTIVITY_ACTION; |
| import static android.net.ConnectivityManager.CONNECTIVITY_ACTION_IMMEDIATE; |
| import static android.net.ConnectivityManager.TYPE_BLUETOOTH; |
| import static android.net.ConnectivityManager.TYPE_DUMMY; |
| import static android.net.ConnectivityManager.TYPE_ETHERNET; |
| import static android.net.ConnectivityManager.TYPE_MOBILE; |
| import static android.net.ConnectivityManager.TYPE_WIFI; |
| import static android.net.ConnectivityManager.TYPE_WIMAX; |
| import static android.net.ConnectivityManager.getNetworkTypeName; |
| import static android.net.ConnectivityManager.isNetworkTypeValid; |
| import static android.net.NetworkPolicyManager.RULE_ALLOW_ALL; |
| import static android.net.NetworkPolicyManager.RULE_REJECT_METERED; |
| |
| import android.app.AlarmManager; |
| import android.app.AppOpsManager; |
| import android.app.Notification; |
| import android.app.NotificationManager; |
| import android.app.PendingIntent; |
| import android.bluetooth.BluetoothTetheringDataTracker; |
| import android.content.ActivityNotFoundException; |
| import android.content.BroadcastReceiver; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.ContextWrapper; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.pm.ApplicationInfo; |
| import android.content.pm.PackageManager; |
| import android.content.pm.PackageManager.NameNotFoundException; |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| import android.database.ContentObserver; |
| import android.net.CaptivePortalTracker; |
| import android.net.ConnectivityManager; |
| import android.net.DummyDataStateTracker; |
| import android.net.EthernetDataTracker; |
| import android.net.IConnectivityManager; |
| import android.net.INetworkManagementEventObserver; |
| import android.net.INetworkPolicyListener; |
| import android.net.INetworkPolicyManager; |
| import android.net.INetworkStatsService; |
| import android.net.LinkAddress; |
| import android.net.LinkProperties; |
| import android.net.LinkProperties.CompareResult; |
| import android.net.LinkQualityInfo; |
| import android.net.MobileDataStateTracker; |
| import android.net.NetworkConfig; |
| import android.net.NetworkInfo; |
| import android.net.NetworkInfo.DetailedState; |
| import android.net.NetworkQuotaInfo; |
| import android.net.NetworkState; |
| import android.net.NetworkStateTracker; |
| import android.net.NetworkUtils; |
| import android.net.Proxy; |
| import android.net.ProxyProperties; |
| import android.net.RouteInfo; |
| import android.net.SamplingDataTracker; |
| import android.net.Uri; |
| import android.net.wifi.WifiStateTracker; |
| import android.net.wimax.WimaxManagerConstants; |
| import android.os.AsyncTask; |
| import android.os.Binder; |
| import android.os.Build; |
| import android.os.FileUtils; |
| import android.os.Handler; |
| import android.os.HandlerThread; |
| import android.os.IBinder; |
| import android.os.INetworkManagementService; |
| import android.os.Looper; |
| import android.os.Message; |
| import android.os.Messenger; |
| import android.os.ParcelFileDescriptor; |
| import android.os.PowerManager; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ServiceManager; |
| import android.os.SystemClock; |
| import android.os.SystemProperties; |
| import android.os.UserHandle; |
| import android.provider.Settings; |
| import android.security.Credentials; |
| import android.security.KeyStore; |
| import android.telephony.TelephonyManager; |
| import android.text.TextUtils; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseIntArray; |
| import android.util.Xml; |
| |
| import com.android.internal.R; |
| import com.android.internal.annotations.GuardedBy; |
| import com.android.internal.net.LegacyVpnInfo; |
| import com.android.internal.net.VpnConfig; |
| import com.android.internal.net.VpnProfile; |
| import com.android.internal.telephony.DctConstants; |
| import com.android.internal.telephony.Phone; |
| import com.android.internal.telephony.PhoneConstants; |
| import com.android.internal.util.IndentingPrintWriter; |
| import com.android.internal.util.XmlUtils; |
| import com.android.server.am.BatteryStatsService; |
| import com.android.server.connectivity.DataConnectionStats; |
| import com.android.server.connectivity.Nat464Xlat; |
| import com.android.server.connectivity.PacManager; |
| import com.android.server.connectivity.Tethering; |
| import com.android.server.connectivity.Vpn; |
| import com.android.server.net.BaseNetworkObserver; |
| import com.android.server.net.LockdownVpnTracker; |
| import com.google.android.collect.Lists; |
| import com.google.android.collect.Sets; |
| |
| import dalvik.system.DexClassLoader; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import java.io.File; |
| import java.io.FileDescriptor; |
| import java.io.FileNotFoundException; |
| import java.io.FileReader; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.lang.reflect.Constructor; |
| import java.net.HttpURLConnection; |
| import java.net.Inet4Address; |
| import java.net.Inet6Address; |
| import java.net.InetAddress; |
| import java.net.URL; |
| import java.net.URLConnection; |
| import java.net.UnknownHostException; |
| import java.util.ArrayList; |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.GregorianCalendar; |
| import java.util.HashMap; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Random; |
| import java.util.concurrent.atomic.AtomicBoolean; |
| import java.util.concurrent.atomic.AtomicInteger; |
| |
| import javax.net.ssl.HostnameVerifier; |
| import javax.net.ssl.HttpsURLConnection; |
| import javax.net.ssl.SSLSession; |
| |
| /** |
| * @hide |
| */ |
| public class ConnectivityService extends IConnectivityManager.Stub { |
| private static final String TAG = "ConnectivityService"; |
| |
| private static final boolean DBG = true; |
| private static final boolean VDBG = false; |
| |
| private static final boolean LOGD_RULES = false; |
| |
| // TODO: create better separation between radio types and network types |
| |
| // how long to wait before switching back to a radio's default network |
| private static final int RESTORE_DEFAULT_NETWORK_DELAY = 1 * 60 * 1000; |
| // system property that can override the above value |
| private static final String NETWORK_RESTORE_DELAY_PROP_NAME = |
| "android.telephony.apn-restore"; |
| |
| // Default value if FAIL_FAST_TIME_MS is not set |
| private static final int DEFAULT_FAIL_FAST_TIME_MS = 1 * 60 * 1000; |
| // system property that can override DEFAULT_FAIL_FAST_TIME_MS |
| private static final String FAIL_FAST_TIME_MS = |
| "persist.radio.fail_fast_time_ms"; |
| |
| private static final String ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED = |
| "android.net.ConnectivityService.action.PKT_CNT_SAMPLE_INTERVAL_ELAPSED"; |
| |
| private static final int SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE = 0; |
| |
| private PendingIntent mSampleIntervalElapsedIntent; |
| |
| // Set network sampling interval at 12 minutes, this way, even if the timers get |
| // aggregated, it will fire at around 15 minutes, which should allow us to |
| // aggregate this timer with other timers (specially the socket keep alive timers) |
| private static final int DEFAULT_SAMPLING_INTERVAL_IN_SECONDS = (VDBG ? 30 : 12 * 60); |
| |
| // start network sampling a minute after booting ... |
| private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (VDBG ? 30 : 60); |
| |
| AlarmManager mAlarmManager; |
| |
| // used in recursive route setting to add gateways for the host for which |
| // a host route was requested. |
| private static final int MAX_HOSTROUTE_CYCLE_COUNT = 10; |
| |
| private Tethering mTethering; |
| |
| private KeyStore mKeyStore; |
| |
| @GuardedBy("mVpns") |
| private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); |
| private VpnCallback mVpnCallback = new VpnCallback(); |
| |
| private boolean mLockdownEnabled; |
| private LockdownVpnTracker mLockdownTracker; |
| |
| private Nat464Xlat mClat; |
| |
| /** Lock around {@link #mUidRules} and {@link #mMeteredIfaces}. */ |
| private Object mRulesLock = new Object(); |
| /** Currently active network rules by UID. */ |
| private SparseIntArray mUidRules = new SparseIntArray(); |
| /** Set of ifaces that are costly. */ |
| private HashSet<String> mMeteredIfaces = Sets.newHashSet(); |
| |
| /** |
| * Sometimes we want to refer to the individual network state |
| * trackers separately, and sometimes we just want to treat them |
| * abstractly. |
| */ |
| private NetworkStateTracker mNetTrackers[]; |
| |
| /* Handles captive portal check on a network */ |
| private CaptivePortalTracker mCaptivePortalTracker; |
| |
| /** |
| * The link properties that define the current links |
| */ |
| private LinkProperties mCurrentLinkProperties[]; |
| |
| /** |
| * A per Net list of the PID's that requested access to the net |
| * used both as a refcount and for per-PID DNS selection |
| */ |
| private List<Integer> mNetRequestersPids[]; |
| |
| // priority order of the nettrackers |
| // (excluding dynamically set mNetworkPreference) |
| // TODO - move mNetworkTypePreference into this |
| private int[] mPriorityList; |
| |
| private Context mContext; |
| private int mNetworkPreference; |
| private int mActiveDefaultNetwork = -1; |
| // 0 is full bad, 100 is full good |
| private int mDefaultInetCondition = 0; |
| private int mDefaultInetConditionPublished = 0; |
| private boolean mInetConditionChangeInFlight = false; |
| private int mDefaultConnectionSequence = 0; |
| |
| private Object mDnsLock = new Object(); |
| private int mNumDnsEntries; |
| |
| private boolean mTestMode; |
| private static ConnectivityService sServiceInstance; |
| |
| private INetworkManagementService mNetd; |
| private INetworkPolicyManager mPolicyManager; |
| |
| private static final int ENABLED = 1; |
| private static final int DISABLED = 0; |
| |
| private static final boolean ADD = true; |
| private static final boolean REMOVE = false; |
| |
| private static final boolean TO_DEFAULT_TABLE = true; |
| private static final boolean TO_SECONDARY_TABLE = false; |
| |
| private static final boolean EXEMPT = true; |
| private static final boolean UNEXEMPT = false; |
| |
| /** |
| * used internally as a delayed event to make us switch back to the |
| * default network |
| */ |
| private static final int EVENT_RESTORE_DEFAULT_NETWORK = 1; |
| |
| /** |
| * used internally to change our mobile data enabled flag |
| */ |
| private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; |
| |
| /** |
| * used internally to change our network preference setting |
| * arg1 = networkType to prefer |
| */ |
| private static final int EVENT_SET_NETWORK_PREFERENCE = 3; |
| |
| /** |
| * used internally to synchronize inet condition reports |
| * arg1 = networkType |
| * arg2 = condition (0 bad, 100 good) |
| */ |
| private static final int EVENT_INET_CONDITION_CHANGE = 4; |
| |
| /** |
| * used internally to mark the end of inet condition hold periods |
| * arg1 = networkType |
| */ |
| private static final int EVENT_INET_CONDITION_HOLD_END = 5; |
| |
| /** |
| * used internally to set enable/disable cellular data |
| * arg1 = ENBALED or DISABLED |
| */ |
| private static final int EVENT_SET_MOBILE_DATA = 7; |
| |
| /** |
| * used internally to clear a wakelock when transitioning |
| * from one net to another |
| */ |
| private static final int EVENT_CLEAR_NET_TRANSITION_WAKELOCK = 8; |
| |
| /** |
| * used internally to reload global proxy settings |
| */ |
| private static final int EVENT_APPLY_GLOBAL_HTTP_PROXY = 9; |
| |
| /** |
| * used internally to set external dependency met/unmet |
| * arg1 = ENABLED (met) or DISABLED (unmet) |
| * arg2 = NetworkType |
| */ |
| private static final int EVENT_SET_DEPENDENCY_MET = 10; |
| |
| /** |
| * used internally to send a sticky broadcast delayed. |
| */ |
| private static final int EVENT_SEND_STICKY_BROADCAST_INTENT = 11; |
| |
| /** |
| * Used internally to |
| * {@link NetworkStateTracker#setPolicyDataEnable(boolean)}. |
| */ |
| private static final int EVENT_SET_POLICY_DATA_ENABLE = 12; |
| |
| private static final int EVENT_VPN_STATE_CHANGED = 13; |
| |
| /** |
| * Used internally to disable fail fast of mobile data |
| */ |
| private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; |
| |
| /** |
| * user internally to indicate that data sampling interval is up |
| */ |
| private static final int EVENT_SAMPLE_INTERVAL_ELAPSED = 15; |
| |
| /** |
| * PAC manager has received new port. |
| */ |
| private static final int EVENT_PROXY_HAS_CHANGED = 16; |
| |
| /** Handler used for internal events. */ |
| private InternalHandler mHandler; |
| /** Handler used for incoming {@link NetworkStateTracker} events. */ |
| private NetworkStateTrackerHandler mTrackerHandler; |
| |
| // list of DeathRecipients used to make sure features are turned off when |
| // a process dies |
| private List<FeatureUser> mFeatureUsers; |
| |
| private boolean mSystemReady; |
| private Intent mInitialBroadcast; |
| |
| private PowerManager.WakeLock mNetTransitionWakeLock; |
| private String mNetTransitionWakeLockCausedBy = ""; |
| private int mNetTransitionWakeLockSerialNumber; |
| private int mNetTransitionWakeLockTimeout; |
| |
| private InetAddress mDefaultDns; |
| |
| // Lock for protecting access to mAddedRoutes and mExemptAddresses |
| private final Object mRoutesLock = new Object(); |
| |
| // this collection is used to refcount the added routes - if there are none left |
| // it's time to remove the route from the route table |
| @GuardedBy("mRoutesLock") |
| private Collection<RouteInfo> mAddedRoutes = new ArrayList<RouteInfo>(); |
| |
| // this collection corresponds to the entries of mAddedRoutes that have routing exemptions |
| // used to handle cleanup of exempt rules |
| @GuardedBy("mRoutesLock") |
| private Collection<LinkAddress> mExemptAddresses = new ArrayList<LinkAddress>(); |
| |
| // used in DBG mode to track inet condition reports |
| private static final int INET_CONDITION_LOG_MAX_SIZE = 15; |
| private ArrayList mInetLog; |
| |
| // track the current default http proxy - tell the world if we get a new one (real change) |
| private ProxyProperties mDefaultProxy = null; |
| private Object mProxyLock = new Object(); |
| private boolean mDefaultProxyDisabled = false; |
| |
| // track the global proxy. |
| private ProxyProperties mGlobalProxy = null; |
| |
| private PacManager mPacManager = null; |
| |
| private SettingsObserver mSettingsObserver; |
| |
| private AppOpsManager mAppOpsManager; |
| |
| NetworkConfig[] mNetConfigs; |
| int mNetworksDefined; |
| |
| private static class RadioAttributes { |
| public int mSimultaneity; |
| public int mType; |
| public RadioAttributes(String init) { |
| String fragments[] = init.split(","); |
| mType = Integer.parseInt(fragments[0]); |
| mSimultaneity = Integer.parseInt(fragments[1]); |
| } |
| } |
| RadioAttributes[] mRadioAttributes; |
| |
| // the set of network types that can only be enabled by system/sig apps |
| List mProtectedNetworks; |
| |
| private DataConnectionStats mDataConnectionStats; |
| |
| private AtomicInteger mEnableFailFastMobileDataTag = new AtomicInteger(0); |
| |
| TelephonyManager mTelephonyManager; |
| |
| public ConnectivityService(Context context, INetworkManagementService netd, |
| INetworkStatsService statsService, INetworkPolicyManager policyManager) { |
| // Currently, omitting a NetworkFactory will create one internally |
| // TODO: create here when we have cleaner WiMAX support |
| this(context, netd, statsService, policyManager, null); |
| } |
| |
| public ConnectivityService(Context context, INetworkManagementService netManager, |
| INetworkStatsService statsService, INetworkPolicyManager policyManager, |
| NetworkFactory netFactory) { |
| if (DBG) log("ConnectivityService starting up"); |
| |
| HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); |
| handlerThread.start(); |
| mHandler = new InternalHandler(handlerThread.getLooper()); |
| mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); |
| |
| if (netFactory == null) { |
| netFactory = new DefaultNetworkFactory(context, mTrackerHandler); |
| } |
| |
| // setup our unique device name |
| if (TextUtils.isEmpty(SystemProperties.get("net.hostname"))) { |
| String id = Settings.Secure.getString(context.getContentResolver(), |
| Settings.Secure.ANDROID_ID); |
| if (id != null && id.length() > 0) { |
| String name = new String("android-").concat(id); |
| SystemProperties.set("net.hostname", name); |
| } |
| } |
| |
| // read our default dns server ip |
| String dns = Settings.Global.getString(context.getContentResolver(), |
| Settings.Global.DEFAULT_DNS_SERVER); |
| if (dns == null || dns.length() == 0) { |
| dns = context.getResources().getString( |
| com.android.internal.R.string.config_default_dns_server); |
| } |
| try { |
| mDefaultDns = NetworkUtils.numericToInetAddress(dns); |
| } catch (IllegalArgumentException e) { |
| loge("Error setting defaultDns using " + dns); |
| } |
| |
| mContext = checkNotNull(context, "missing Context"); |
| mNetd = checkNotNull(netManager, "missing INetworkManagementService"); |
| mPolicyManager = checkNotNull(policyManager, "missing INetworkPolicyManager"); |
| mKeyStore = KeyStore.getInstance(); |
| mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE); |
| |
| try { |
| mPolicyManager.registerListener(mPolicyListener); |
| } catch (RemoteException e) { |
| // ouch, no rules updates means some processes may never get network |
| loge("unable to register INetworkPolicyListener" + e.toString()); |
| } |
| |
| final PowerManager powerManager = (PowerManager) context.getSystemService( |
| Context.POWER_SERVICE); |
| mNetTransitionWakeLock = powerManager.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, TAG); |
| mNetTransitionWakeLockTimeout = mContext.getResources().getInteger( |
| com.android.internal.R.integer.config_networkTransitionTimeout); |
| |
| mNetTrackers = new NetworkStateTracker[ |
| ConnectivityManager.MAX_NETWORK_TYPE+1]; |
| mCurrentLinkProperties = new LinkProperties[ConnectivityManager.MAX_NETWORK_TYPE+1]; |
| |
| mRadioAttributes = new RadioAttributes[ConnectivityManager.MAX_RADIO_TYPE+1]; |
| mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; |
| |
| // Load device network attributes from resources |
| String[] raStrings = context.getResources().getStringArray( |
| com.android.internal.R.array.radioAttributes); |
| for (String raString : raStrings) { |
| RadioAttributes r = new RadioAttributes(raString); |
| if (VDBG) log("raString=" + raString + " r=" + r); |
| if (r.mType > ConnectivityManager.MAX_RADIO_TYPE) { |
| loge("Error in radioAttributes - ignoring attempt to define type " + r.mType); |
| continue; |
| } |
| if (mRadioAttributes[r.mType] != null) { |
| loge("Error in radioAttributes - ignoring attempt to redefine type " + |
| r.mType); |
| continue; |
| } |
| mRadioAttributes[r.mType] = r; |
| } |
| |
| // TODO: What is the "correct" way to do determine if this is a wifi only device? |
| boolean wifiOnly = SystemProperties.getBoolean("ro.radio.noril", false); |
| log("wifiOnly=" + wifiOnly); |
| String[] naStrings = context.getResources().getStringArray( |
| com.android.internal.R.array.networkAttributes); |
| for (String naString : naStrings) { |
| try { |
| NetworkConfig n = new NetworkConfig(naString); |
| if (VDBG) log("naString=" + naString + " config=" + n); |
| if (n.type > ConnectivityManager.MAX_NETWORK_TYPE) { |
| loge("Error in networkAttributes - ignoring attempt to define type " + |
| n.type); |
| continue; |
| } |
| if (wifiOnly && ConnectivityManager.isNetworkTypeMobile(n.type)) { |
| log("networkAttributes - ignoring mobile as this dev is wifiOnly " + |
| n.type); |
| continue; |
| } |
| if (mNetConfigs[n.type] != null) { |
| loge("Error in networkAttributes - ignoring attempt to redefine type " + |
| n.type); |
| continue; |
| } |
| if (mRadioAttributes[n.radio] == null) { |
| loge("Error in networkAttributes - ignoring attempt to use undefined " + |
| "radio " + n.radio + " in network type " + n.type); |
| continue; |
| } |
| mNetConfigs[n.type] = n; |
| mNetworksDefined++; |
| } catch(Exception e) { |
| // ignore it - leave the entry null |
| } |
| } |
| if (VDBG) log("mNetworksDefined=" + mNetworksDefined); |
| |
| mProtectedNetworks = new ArrayList<Integer>(); |
| int[] protectedNetworks = context.getResources().getIntArray( |
| com.android.internal.R.array.config_protectedNetworks); |
| for (int p : protectedNetworks) { |
| if ((mNetConfigs[p] != null) && (mProtectedNetworks.contains(p) == false)) { |
| mProtectedNetworks.add(p); |
| } else { |
| if (DBG) loge("Ignoring protectedNetwork " + p); |
| } |
| } |
| |
| // high priority first |
| mPriorityList = new int[mNetworksDefined]; |
| { |
| int insertionPoint = mNetworksDefined-1; |
| int currentLowest = 0; |
| int nextLowest = 0; |
| while (insertionPoint > -1) { |
| for (NetworkConfig na : mNetConfigs) { |
| if (na == null) continue; |
| if (na.priority < currentLowest) continue; |
| if (na.priority > currentLowest) { |
| if (na.priority < nextLowest || nextLowest == 0) { |
| nextLowest = na.priority; |
| } |
| continue; |
| } |
| mPriorityList[insertionPoint--] = na.type; |
| } |
| currentLowest = nextLowest; |
| nextLowest = 0; |
| } |
| } |
| |
| // Update mNetworkPreference according to user mannually first then overlay config.xml |
| mNetworkPreference = getPersistedNetworkPreference(); |
| if (mNetworkPreference == -1) { |
| for (int n : mPriorityList) { |
| if (mNetConfigs[n].isDefault() && ConnectivityManager.isNetworkTypeValid(n)) { |
| mNetworkPreference = n; |
| break; |
| } |
| } |
| if (mNetworkPreference == -1) { |
| throw new IllegalStateException( |
| "You should set at least one default Network in config.xml!"); |
| } |
| } |
| |
| mNetRequestersPids = |
| (List<Integer> [])new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE+1]; |
| for (int i : mPriorityList) { |
| mNetRequestersPids[i] = new ArrayList<Integer>(); |
| } |
| |
| mFeatureUsers = new ArrayList<FeatureUser>(); |
| |
| mTestMode = SystemProperties.get("cm.test.mode").equals("true") |
| && SystemProperties.get("ro.build.type").equals("eng"); |
| |
| // Create and start trackers for hard-coded networks |
| for (int targetNetworkType : mPriorityList) { |
| final NetworkConfig config = mNetConfigs[targetNetworkType]; |
| final NetworkStateTracker tracker; |
| try { |
| tracker = netFactory.createTracker(targetNetworkType, config); |
| mNetTrackers[targetNetworkType] = tracker; |
| } catch (IllegalArgumentException e) { |
| Slog.e(TAG, "Problem creating " + getNetworkTypeName(targetNetworkType) |
| + " tracker: " + e); |
| continue; |
| } |
| |
| tracker.startMonitoring(context, mTrackerHandler); |
| if (config.isDefault()) { |
| tracker.reconnect(); |
| } |
| } |
| |
| mTethering = new Tethering(mContext, mNetd, statsService, this, mHandler.getLooper()); |
| |
| //set up the listener for user state for creating user VPNs |
| IntentFilter intentFilter = new IntentFilter(); |
| intentFilter.addAction(Intent.ACTION_USER_STARTING); |
| intentFilter.addAction(Intent.ACTION_USER_STOPPING); |
| mContext.registerReceiverAsUser( |
| mUserIntentReceiver, UserHandle.ALL, intentFilter, null, null); |
| mClat = new Nat464Xlat(mContext, mNetd, this, mTrackerHandler); |
| |
| try { |
| mNetd.registerObserver(mTethering); |
| mNetd.registerObserver(mDataActivityObserver); |
| mNetd.registerObserver(mClat); |
| } catch (RemoteException e) { |
| loge("Error registering observer :" + e); |
| } |
| |
| if (DBG) { |
| mInetLog = new ArrayList(); |
| } |
| |
| mSettingsObserver = new SettingsObserver(mHandler, EVENT_APPLY_GLOBAL_HTTP_PROXY); |
| mSettingsObserver.observe(mContext); |
| |
| mDataConnectionStats = new DataConnectionStats(mContext); |
| mDataConnectionStats.startMonitoring(); |
| |
| // start network sampling .. |
| Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED, null); |
| mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, |
| SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); |
| |
| mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); |
| setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); |
| |
| IntentFilter filter = new IntentFilter(); |
| filter.addAction(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); |
| mContext.registerReceiver( |
| new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (action.equals(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED)) { |
| mHandler.sendMessage(mHandler.obtainMessage |
| (EVENT_SAMPLE_INTERVAL_ELAPSED)); |
| } |
| } |
| }, |
| new IntentFilter(filter)); |
| |
| mPacManager = new PacManager(mContext, mHandler, EVENT_PROXY_HAS_CHANGED); |
| |
| filter = new IntentFilter(); |
| filter.addAction(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); |
| mContext.registerReceiver(mProvisioningReceiver, filter); |
| |
| mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE); |
| } |
| |
| /** |
| * Factory that creates {@link NetworkStateTracker} instances using given |
| * {@link NetworkConfig}. |
| */ |
| public interface NetworkFactory { |
| public NetworkStateTracker createTracker(int targetNetworkType, NetworkConfig config); |
| } |
| |
| private static class DefaultNetworkFactory implements NetworkFactory { |
| private final Context mContext; |
| private final Handler mTrackerHandler; |
| |
| public DefaultNetworkFactory(Context context, Handler trackerHandler) { |
| mContext = context; |
| mTrackerHandler = trackerHandler; |
| } |
| |
| @Override |
| public NetworkStateTracker createTracker(int targetNetworkType, NetworkConfig config) { |
| switch (config.radio) { |
| case TYPE_WIFI: |
| return new WifiStateTracker(targetNetworkType, config.name); |
| case TYPE_MOBILE: |
| return new MobileDataStateTracker(targetNetworkType, config.name); |
| case TYPE_DUMMY: |
| return new DummyDataStateTracker(targetNetworkType, config.name); |
| case TYPE_BLUETOOTH: |
| return BluetoothTetheringDataTracker.getInstance(); |
| case TYPE_WIMAX: |
| return makeWimaxStateTracker(mContext, mTrackerHandler); |
| case TYPE_ETHERNET: |
| return EthernetDataTracker.getInstance(); |
| default: |
| throw new IllegalArgumentException( |
| "Trying to create a NetworkStateTracker for an unknown radio type: " |
| + config.radio); |
| } |
| } |
| } |
| |
| /** |
| * Loads external WiMAX library and registers as system service, returning a |
| * {@link NetworkStateTracker} for WiMAX. Caller is still responsible for |
| * invoking {@link NetworkStateTracker#startMonitoring(Context, Handler)}. |
| */ |
| private static NetworkStateTracker makeWimaxStateTracker( |
| Context context, Handler trackerHandler) { |
| // Initialize Wimax |
| DexClassLoader wimaxClassLoader; |
| Class wimaxStateTrackerClass = null; |
| Class wimaxServiceClass = null; |
| Class wimaxManagerClass; |
| String wimaxJarLocation; |
| String wimaxLibLocation; |
| String wimaxManagerClassName; |
| String wimaxServiceClassName; |
| String wimaxStateTrackerClassName; |
| |
| NetworkStateTracker wimaxStateTracker = null; |
| |
| boolean isWimaxEnabled = context.getResources().getBoolean( |
| com.android.internal.R.bool.config_wimaxEnabled); |
| |
| if (isWimaxEnabled) { |
| try { |
| wimaxJarLocation = context.getResources().getString( |
| com.android.internal.R.string.config_wimaxServiceJarLocation); |
| wimaxLibLocation = context.getResources().getString( |
| com.android.internal.R.string.config_wimaxNativeLibLocation); |
| wimaxManagerClassName = context.getResources().getString( |
| com.android.internal.R.string.config_wimaxManagerClassname); |
| wimaxServiceClassName = context.getResources().getString( |
| com.android.internal.R.string.config_wimaxServiceClassname); |
| wimaxStateTrackerClassName = context.getResources().getString( |
| com.android.internal.R.string.config_wimaxStateTrackerClassname); |
| |
| if (DBG) log("wimaxJarLocation: " + wimaxJarLocation); |
| wimaxClassLoader = new DexClassLoader(wimaxJarLocation, |
| new ContextWrapper(context).getCacheDir().getAbsolutePath(), |
| wimaxLibLocation, ClassLoader.getSystemClassLoader()); |
| |
| try { |
| wimaxManagerClass = wimaxClassLoader.loadClass(wimaxManagerClassName); |
| wimaxStateTrackerClass = wimaxClassLoader.loadClass(wimaxStateTrackerClassName); |
| wimaxServiceClass = wimaxClassLoader.loadClass(wimaxServiceClassName); |
| } catch (ClassNotFoundException ex) { |
| loge("Exception finding Wimax classes: " + ex.toString()); |
| return null; |
| } |
| } catch(Resources.NotFoundException ex) { |
| loge("Wimax Resources does not exist!!! "); |
| return null; |
| } |
| |
| try { |
| if (DBG) log("Starting Wimax Service... "); |
| |
| Constructor wmxStTrkrConst = wimaxStateTrackerClass.getConstructor |
| (new Class[] {Context.class, Handler.class}); |
| wimaxStateTracker = (NetworkStateTracker) wmxStTrkrConst.newInstance( |
| context, trackerHandler); |
| |
| Constructor wmxSrvConst = wimaxServiceClass.getDeclaredConstructor |
| (new Class[] {Context.class, wimaxStateTrackerClass}); |
| wmxSrvConst.setAccessible(true); |
| IBinder svcInvoker = (IBinder)wmxSrvConst.newInstance(context, wimaxStateTracker); |
| wmxSrvConst.setAccessible(false); |
| |
| ServiceManager.addService(WimaxManagerConstants.WIMAX_SERVICE, svcInvoker); |
| |
| } catch(Exception ex) { |
| loge("Exception creating Wimax classes: " + ex.toString()); |
| return null; |
| } |
| } else { |
| loge("Wimax is not enabled or not added to the network attributes!!! "); |
| return null; |
| } |
| |
| return wimaxStateTracker; |
| } |
| |
| /** |
| * Sets the preferred network. |
| * @param preference the new preference |
| */ |
| public void setNetworkPreference(int preference) { |
| enforceChangePermission(); |
| |
| mHandler.sendMessage( |
| mHandler.obtainMessage(EVENT_SET_NETWORK_PREFERENCE, preference, 0)); |
| } |
| |
| public int getNetworkPreference() { |
| enforceAccessPermission(); |
| int preference; |
| synchronized(this) { |
| preference = mNetworkPreference; |
| } |
| return preference; |
| } |
| |
| private void handleSetNetworkPreference(int preference) { |
| if (ConnectivityManager.isNetworkTypeValid(preference) && |
| mNetConfigs[preference] != null && |
| mNetConfigs[preference].isDefault()) { |
| if (mNetworkPreference != preference) { |
| final ContentResolver cr = mContext.getContentResolver(); |
| Settings.Global.putInt(cr, Settings.Global.NETWORK_PREFERENCE, preference); |
| synchronized(this) { |
| mNetworkPreference = preference; |
| } |
| enforcePreference(); |
| } |
| } |
| } |
| |
| private int getConnectivityChangeDelay() { |
| final ContentResolver cr = mContext.getContentResolver(); |
| |
| /** Check system properties for the default value then use secure settings value, if any. */ |
| int defaultDelay = SystemProperties.getInt( |
| "conn." + Settings.Global.CONNECTIVITY_CHANGE_DELAY, |
| ConnectivityManager.CONNECTIVITY_CHANGE_DELAY_DEFAULT); |
| return Settings.Global.getInt(cr, Settings.Global.CONNECTIVITY_CHANGE_DELAY, |
| defaultDelay); |
| } |
| |
| private int getPersistedNetworkPreference() { |
| final ContentResolver cr = mContext.getContentResolver(); |
| |
| final int networkPrefSetting = Settings.Global |
| .getInt(cr, Settings.Global.NETWORK_PREFERENCE, -1); |
| |
| return networkPrefSetting; |
| } |
| |
| /** |
| * Make the state of network connectivity conform to the preference settings |
| * In this method, we only tear down a non-preferred network. Establishing |
| * a connection to the preferred network is taken care of when we handle |
| * the disconnect event from the non-preferred network |
| * (see {@link #handleDisconnect(NetworkInfo)}). |
| */ |
| private void enforcePreference() { |
| if (mNetTrackers[mNetworkPreference].getNetworkInfo().isConnected()) |
| return; |
| |
| if (!mNetTrackers[mNetworkPreference].isAvailable()) |
| return; |
| |
| for (int t=0; t <= ConnectivityManager.MAX_RADIO_TYPE; t++) { |
| if (t != mNetworkPreference && mNetTrackers[t] != null && |
| mNetTrackers[t].getNetworkInfo().isConnected()) { |
| if (DBG) { |
| log("tearing down " + mNetTrackers[t].getNetworkInfo() + |
| " in enforcePreference"); |
| } |
| teardown(mNetTrackers[t]); |
| } |
| } |
| } |
| |
| private boolean teardown(NetworkStateTracker netTracker) { |
| if (netTracker.teardown()) { |
| netTracker.setTeardownRequested(true); |
| return true; |
| } else { |
| return false; |
| } |
| } |
| |
| /** |
| * Check if UID should be blocked from using the network represented by the |
| * given {@link NetworkStateTracker}. |
| */ |
| private boolean isNetworkBlocked(NetworkStateTracker tracker, int uid) { |
| final String iface = tracker.getLinkProperties().getInterfaceName(); |
| |
| final boolean networkCostly; |
| final int uidRules; |
| synchronized (mRulesLock) { |
| networkCostly = mMeteredIfaces.contains(iface); |
| uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); |
| } |
| |
| if (networkCostly && (uidRules & RULE_REJECT_METERED) != 0) { |
| return true; |
| } |
| |
| // no restrictive rules; network is visible |
| return false; |
| } |
| |
| /** |
| * Return a filtered {@link NetworkInfo}, potentially marked |
| * {@link DetailedState#BLOCKED} based on |
| * {@link #isNetworkBlocked(NetworkStateTracker, int)}. |
| */ |
| private NetworkInfo getFilteredNetworkInfo(NetworkStateTracker tracker, int uid) { |
| NetworkInfo info = tracker.getNetworkInfo(); |
| if (isNetworkBlocked(tracker, uid)) { |
| // network is blocked; clone and override state |
| info = new NetworkInfo(info); |
| info.setDetailedState(DetailedState.BLOCKED, null, null); |
| } |
| if (mLockdownTracker != null) { |
| info = mLockdownTracker.augmentNetworkInfo(info); |
| } |
| return info; |
| } |
| |
| /** |
| * Return NetworkInfo for the active (i.e., connected) network interface. |
| * It is assumed that at most one network is active at a time. If more |
| * than one is active, it is indeterminate which will be returned. |
| * @return the info for the active network, or {@code null} if none is |
| * active |
| */ |
| @Override |
| public NetworkInfo getActiveNetworkInfo() { |
| enforceAccessPermission(); |
| final int uid = Binder.getCallingUid(); |
| return getNetworkInfo(mActiveDefaultNetwork, uid); |
| } |
| |
| /** |
| * Find the first Provisioning network. |
| * |
| * @return NetworkInfo or null if none. |
| */ |
| private NetworkInfo getProvisioningNetworkInfo() { |
| enforceAccessPermission(); |
| |
| // Find the first Provisioning Network |
| NetworkInfo provNi = null; |
| for (NetworkInfo ni : getAllNetworkInfo()) { |
| if (ni.isConnectedToProvisioningNetwork()) { |
| provNi = ni; |
| break; |
| } |
| } |
| if (DBG) log("getProvisioningNetworkInfo: X provNi=" + provNi); |
| return provNi; |
| } |
| |
| /** |
| * Find the first Provisioning network or the ActiveDefaultNetwork |
| * if there is no Provisioning network |
| * |
| * @return NetworkInfo or null if none. |
| */ |
| @Override |
| public NetworkInfo getProvisioningOrActiveNetworkInfo() { |
| enforceAccessPermission(); |
| |
| NetworkInfo provNi = getProvisioningNetworkInfo(); |
| if (provNi == null) { |
| final int uid = Binder.getCallingUid(); |
| provNi = getNetworkInfo(mActiveDefaultNetwork, uid); |
| } |
| if (DBG) log("getProvisioningOrActiveNetworkInfo: X provNi=" + provNi); |
| return provNi; |
| } |
| |
| public NetworkInfo getActiveNetworkInfoUnfiltered() { |
| enforceAccessPermission(); |
| if (isNetworkTypeValid(mActiveDefaultNetwork)) { |
| final NetworkStateTracker tracker = mNetTrackers[mActiveDefaultNetwork]; |
| if (tracker != null) { |
| return tracker.getNetworkInfo(); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public NetworkInfo getActiveNetworkInfoForUid(int uid) { |
| enforceConnectivityInternalPermission(); |
| return getNetworkInfo(mActiveDefaultNetwork, uid); |
| } |
| |
| @Override |
| public NetworkInfo getNetworkInfo(int networkType) { |
| enforceAccessPermission(); |
| final int uid = Binder.getCallingUid(); |
| return getNetworkInfo(networkType, uid); |
| } |
| |
| private NetworkInfo getNetworkInfo(int networkType, int uid) { |
| NetworkInfo info = null; |
| if (isNetworkTypeValid(networkType)) { |
| final NetworkStateTracker tracker = mNetTrackers[networkType]; |
| if (tracker != null) { |
| info = getFilteredNetworkInfo(tracker, uid); |
| } |
| } |
| return info; |
| } |
| |
| @Override |
| public NetworkInfo[] getAllNetworkInfo() { |
| enforceAccessPermission(); |
| final int uid = Binder.getCallingUid(); |
| final ArrayList<NetworkInfo> result = Lists.newArrayList(); |
| synchronized (mRulesLock) { |
| for (NetworkStateTracker tracker : mNetTrackers) { |
| if (tracker != null) { |
| result.add(getFilteredNetworkInfo(tracker, uid)); |
| } |
| } |
| } |
| return result.toArray(new NetworkInfo[result.size()]); |
| } |
| |
| @Override |
| public boolean isNetworkSupported(int networkType) { |
| enforceAccessPermission(); |
| return (isNetworkTypeValid(networkType) && (mNetTrackers[networkType] != null)); |
| } |
| |
| /** |
| * Return LinkProperties for the active (i.e., connected) default |
| * network interface. It is assumed that at most one default network |
| * is active at a time. If more than one is active, it is indeterminate |
| * which will be returned. |
| * @return the ip properties for the active network, or {@code null} if |
| * none is active |
| */ |
| @Override |
| public LinkProperties getActiveLinkProperties() { |
| return getLinkProperties(mActiveDefaultNetwork); |
| } |
| |
| @Override |
| public LinkProperties getLinkProperties(int networkType) { |
| enforceAccessPermission(); |
| if (isNetworkTypeValid(networkType)) { |
| final NetworkStateTracker tracker = mNetTrackers[networkType]; |
| if (tracker != null) { |
| return tracker.getLinkProperties(); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public NetworkState[] getAllNetworkState() { |
| enforceAccessPermission(); |
| final int uid = Binder.getCallingUid(); |
| final ArrayList<NetworkState> result = Lists.newArrayList(); |
| synchronized (mRulesLock) { |
| for (NetworkStateTracker tracker : mNetTrackers) { |
| if (tracker != null) { |
| final NetworkInfo info = getFilteredNetworkInfo(tracker, uid); |
| result.add(new NetworkState( |
| info, tracker.getLinkProperties(), tracker.getLinkCapabilities())); |
| } |
| } |
| } |
| return result.toArray(new NetworkState[result.size()]); |
| } |
| |
| private NetworkState getNetworkStateUnchecked(int networkType) { |
| if (isNetworkTypeValid(networkType)) { |
| final NetworkStateTracker tracker = mNetTrackers[networkType]; |
| if (tracker != null) { |
| return new NetworkState(tracker.getNetworkInfo(), tracker.getLinkProperties(), |
| tracker.getLinkCapabilities()); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public NetworkQuotaInfo getActiveNetworkQuotaInfo() { |
| enforceAccessPermission(); |
| |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| final NetworkState state = getNetworkStateUnchecked(mActiveDefaultNetwork); |
| if (state != null) { |
| try { |
| return mPolicyManager.getNetworkQuotaInfo(state); |
| } catch (RemoteException e) { |
| } |
| } |
| return null; |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public boolean isActiveNetworkMetered() { |
| enforceAccessPermission(); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| return isNetworkMeteredUnchecked(mActiveDefaultNetwork); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| private boolean isNetworkMeteredUnchecked(int networkType) { |
| final NetworkState state = getNetworkStateUnchecked(networkType); |
| if (state != null) { |
| try { |
| return mPolicyManager.isNetworkMetered(state); |
| } catch (RemoteException e) { |
| } |
| } |
| return false; |
| } |
| |
| public boolean setRadios(boolean turnOn) { |
| boolean result = true; |
| enforceChangePermission(); |
| for (NetworkStateTracker t : mNetTrackers) { |
| if (t != null) result = t.setRadio(turnOn) && result; |
| } |
| return result; |
| } |
| |
| public boolean setRadio(int netType, boolean turnOn) { |
| enforceChangePermission(); |
| if (!ConnectivityManager.isNetworkTypeValid(netType)) { |
| return false; |
| } |
| NetworkStateTracker tracker = mNetTrackers[netType]; |
| return tracker != null && tracker.setRadio(turnOn); |
| } |
| |
| private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { |
| @Override |
| public void interfaceClassDataActivityChanged(String label, boolean active) { |
| int deviceType = Integer.parseInt(label); |
| sendDataActivityBroadcast(deviceType, active); |
| } |
| }; |
| |
| /** |
| * Used to notice when the calling process dies so we can self-expire |
| * |
| * Also used to know if the process has cleaned up after itself when |
| * our auto-expire timer goes off. The timer has a link to an object. |
| * |
| */ |
| private class FeatureUser implements IBinder.DeathRecipient { |
| int mNetworkType; |
| String mFeature; |
| IBinder mBinder; |
| int mPid; |
| int mUid; |
| long mCreateTime; |
| |
| FeatureUser(int type, String feature, IBinder binder) { |
| super(); |
| mNetworkType = type; |
| mFeature = feature; |
| mBinder = binder; |
| mPid = getCallingPid(); |
| mUid = getCallingUid(); |
| mCreateTime = System.currentTimeMillis(); |
| |
| try { |
| mBinder.linkToDeath(this, 0); |
| } catch (RemoteException e) { |
| binderDied(); |
| } |
| } |
| |
| void unlinkDeathRecipient() { |
| mBinder.unlinkToDeath(this, 0); |
| } |
| |
| public void binderDied() { |
| log("ConnectivityService FeatureUser binderDied(" + |
| mNetworkType + ", " + mFeature + ", " + mBinder + "), created " + |
| (System.currentTimeMillis() - mCreateTime) + " mSec ago"); |
| stopUsingNetworkFeature(this, false); |
| } |
| |
| public void expire() { |
| if (VDBG) { |
| log("ConnectivityService FeatureUser expire(" + |
| mNetworkType + ", " + mFeature + ", " + mBinder +"), created " + |
| (System.currentTimeMillis() - mCreateTime) + " mSec ago"); |
| } |
| stopUsingNetworkFeature(this, false); |
| } |
| |
| public boolean isSameUser(FeatureUser u) { |
| if (u == null) return false; |
| |
| return isSameUser(u.mPid, u.mUid, u.mNetworkType, u.mFeature); |
| } |
| |
| public boolean isSameUser(int pid, int uid, int networkType, String feature) { |
| if ((mPid == pid) && (mUid == uid) && (mNetworkType == networkType) && |
| TextUtils.equals(mFeature, feature)) { |
| return true; |
| } |
| return false; |
| } |
| |
| public String toString() { |
| return "FeatureUser("+mNetworkType+","+mFeature+","+mPid+","+mUid+"), created " + |
| (System.currentTimeMillis() - mCreateTime) + " mSec ago"; |
| } |
| } |
| |
| // javadoc from interface |
| public int startUsingNetworkFeature(int networkType, String feature, |
| IBinder binder) { |
| long startTime = 0; |
| if (DBG) { |
| startTime = SystemClock.elapsedRealtime(); |
| } |
| if (VDBG) { |
| log("startUsingNetworkFeature for net " + networkType + ": " + feature + ", uid=" |
| + Binder.getCallingUid()); |
| } |
| enforceChangePermission(); |
| try { |
| if (!ConnectivityManager.isNetworkTypeValid(networkType) || |
| mNetConfigs[networkType] == null) { |
| return PhoneConstants.APN_REQUEST_FAILED; |
| } |
| |
| FeatureUser f = new FeatureUser(networkType, feature, binder); |
| |
| // TODO - move this into individual networktrackers |
| int usedNetworkType = convertFeatureToNetworkType(networkType, feature); |
| |
| if (mLockdownEnabled) { |
| // Since carrier APNs usually aren't available from VPN |
| // endpoint, mark them as unavailable. |
| return PhoneConstants.APN_TYPE_NOT_AVAILABLE; |
| } |
| |
| if (mProtectedNetworks.contains(usedNetworkType)) { |
| enforceConnectivityInternalPermission(); |
| } |
| |
| // if UID is restricted, don't allow them to bring up metered APNs |
| final boolean networkMetered = isNetworkMeteredUnchecked(usedNetworkType); |
| final int uidRules; |
| synchronized (mRulesLock) { |
| uidRules = mUidRules.get(Binder.getCallingUid(), RULE_ALLOW_ALL); |
| } |
| if (networkMetered && (uidRules & RULE_REJECT_METERED) != 0) { |
| return PhoneConstants.APN_REQUEST_FAILED; |
| } |
| |
| NetworkStateTracker network = mNetTrackers[usedNetworkType]; |
| if (network != null) { |
| Integer currentPid = new Integer(getCallingPid()); |
| if (usedNetworkType != networkType) { |
| NetworkInfo ni = network.getNetworkInfo(); |
| |
| if (ni.isAvailable() == false) { |
| if (!TextUtils.equals(feature,Phone.FEATURE_ENABLE_DUN_ALWAYS)) { |
| if (DBG) log("special network not available ni=" + ni.getTypeName()); |
| return PhoneConstants.APN_TYPE_NOT_AVAILABLE; |
| } else { |
| // else make the attempt anyway - probably giving REQUEST_STARTED below |
| if (DBG) { |
| log("special network not available, but try anyway ni=" + |
| ni.getTypeName()); |
| } |
| } |
| } |
| |
| int restoreTimer = getRestoreDefaultNetworkDelay(usedNetworkType); |
| |
| synchronized(this) { |
| boolean addToList = true; |
| if (restoreTimer < 0) { |
| // In case there is no timer is specified for the feature, |
| // make sure we don't add duplicate entry with the same request. |
| for (FeatureUser u : mFeatureUsers) { |
| if (u.isSameUser(f)) { |
| // Duplicate user is found. Do not add. |
| addToList = false; |
| break; |
| } |
| } |
| } |
| |
| if (addToList) mFeatureUsers.add(f); |
| if (!mNetRequestersPids[usedNetworkType].contains(currentPid)) { |
| // this gets used for per-pid dns when connected |
| mNetRequestersPids[usedNetworkType].add(currentPid); |
| } |
| } |
| |
| if (restoreTimer >= 0) { |
| mHandler.sendMessageDelayed(mHandler.obtainMessage( |
| EVENT_RESTORE_DEFAULT_NETWORK, f), restoreTimer); |
| } |
| |
| if ((ni.isConnectedOrConnecting() == true) && |
| !network.isTeardownRequested()) { |
| if (ni.isConnected() == true) { |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| // add the pid-specific dns |
| handleDnsConfigurationChange(usedNetworkType); |
| if (VDBG) log("special network already active"); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| return PhoneConstants.APN_ALREADY_ACTIVE; |
| } |
| if (VDBG) log("special network already connecting"); |
| return PhoneConstants.APN_REQUEST_STARTED; |
| } |
| |
| // check if the radio in play can make another contact |
| // assume if cannot for now |
| |
| if (DBG) { |
| log("startUsingNetworkFeature reconnecting to " + networkType + ": " + |
| feature); |
| } |
| if (network.reconnect()) { |
| if (DBG) log("startUsingNetworkFeature X: return APN_REQUEST_STARTED"); |
| return PhoneConstants.APN_REQUEST_STARTED; |
| } else { |
| if (DBG) log("startUsingNetworkFeature X: return APN_REQUEST_FAILED"); |
| return PhoneConstants.APN_REQUEST_FAILED; |
| } |
| } else { |
| // need to remember this unsupported request so we respond appropriately on stop |
| synchronized(this) { |
| mFeatureUsers.add(f); |
| if (!mNetRequestersPids[usedNetworkType].contains(currentPid)) { |
| // this gets used for per-pid dns when connected |
| mNetRequestersPids[usedNetworkType].add(currentPid); |
| } |
| } |
| if (DBG) log("startUsingNetworkFeature X: return -1 unsupported feature."); |
| return -1; |
| } |
| } |
| if (DBG) log("startUsingNetworkFeature X: return APN_TYPE_NOT_AVAILABLE"); |
| return PhoneConstants.APN_TYPE_NOT_AVAILABLE; |
| } finally { |
| if (DBG) { |
| final long execTime = SystemClock.elapsedRealtime() - startTime; |
| if (execTime > 250) { |
| loge("startUsingNetworkFeature took too long: " + execTime + "ms"); |
| } else { |
| if (VDBG) log("startUsingNetworkFeature took " + execTime + "ms"); |
| } |
| } |
| } |
| } |
| |
| // javadoc from interface |
| public int stopUsingNetworkFeature(int networkType, String feature) { |
| enforceChangePermission(); |
| |
| int pid = getCallingPid(); |
| int uid = getCallingUid(); |
| |
| FeatureUser u = null; |
| boolean found = false; |
| |
| synchronized(this) { |
| for (FeatureUser x : mFeatureUsers) { |
| if (x.isSameUser(pid, uid, networkType, feature)) { |
| u = x; |
| found = true; |
| break; |
| } |
| } |
| } |
| if (found && u != null) { |
| if (VDBG) log("stopUsingNetworkFeature: X"); |
| // stop regardless of how many other time this proc had called start |
| return stopUsingNetworkFeature(u, true); |
| } else { |
| // none found! |
| if (VDBG) log("stopUsingNetworkFeature: X not a live request, ignoring"); |
| return 1; |
| } |
| } |
| |
| private int stopUsingNetworkFeature(FeatureUser u, boolean ignoreDups) { |
| int networkType = u.mNetworkType; |
| String feature = u.mFeature; |
| int pid = u.mPid; |
| int uid = u.mUid; |
| |
| NetworkStateTracker tracker = null; |
| boolean callTeardown = false; // used to carry our decision outside of sync block |
| |
| if (VDBG) { |
| log("stopUsingNetworkFeature: net " + networkType + ": " + feature); |
| } |
| |
| if (!ConnectivityManager.isNetworkTypeValid(networkType)) { |
| if (DBG) { |
| log("stopUsingNetworkFeature: net " + networkType + ": " + feature + |
| ", net is invalid"); |
| } |
| return -1; |
| } |
| |
| // need to link the mFeatureUsers list with the mNetRequestersPids state in this |
| // sync block |
| synchronized(this) { |
| // check if this process still has an outstanding start request |
| if (!mFeatureUsers.contains(u)) { |
| if (VDBG) { |
| log("stopUsingNetworkFeature: this process has no outstanding requests" + |
| ", ignoring"); |
| } |
| return 1; |
| } |
| u.unlinkDeathRecipient(); |
| mFeatureUsers.remove(mFeatureUsers.indexOf(u)); |
| // If we care about duplicate requests, check for that here. |
| // |
| // This is done to support the extension of a request - the app |
| // can request we start the network feature again and renew the |
| // auto-shutoff delay. Normal "stop" calls from the app though |
| // do not pay attention to duplicate requests - in effect the |
| // API does not refcount and a single stop will counter multiple starts. |
| if (ignoreDups == false) { |
| for (FeatureUser x : mFeatureUsers) { |
| if (x.isSameUser(u)) { |
| if (VDBG) log("stopUsingNetworkFeature: dup is found, ignoring"); |
| return 1; |
| } |
| } |
| } |
| |
| // TODO - move to individual network trackers |
| int usedNetworkType = convertFeatureToNetworkType(networkType, feature); |
| |
| tracker = mNetTrackers[usedNetworkType]; |
| if (tracker == null) { |
| if (DBG) { |
| log("stopUsingNetworkFeature: net " + networkType + ": " + feature + |
| " no known tracker for used net type " + usedNetworkType); |
| } |
| return -1; |
| } |
| if (usedNetworkType != networkType) { |
| Integer currentPid = new Integer(pid); |
| mNetRequestersPids[usedNetworkType].remove(currentPid); |
| |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| reassessPidDns(pid, true); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| flushVmDnsCache(); |
| if (mNetRequestersPids[usedNetworkType].size() != 0) { |
| if (VDBG) { |
| log("stopUsingNetworkFeature: net " + networkType + ": " + feature + |
| " others still using it"); |
| } |
| return 1; |
| } |
| callTeardown = true; |
| } else { |
| if (DBG) { |
| log("stopUsingNetworkFeature: net " + networkType + ": " + feature + |
| " not a known feature - dropping"); |
| } |
| } |
| } |
| |
| if (callTeardown) { |
| if (DBG) { |
| log("stopUsingNetworkFeature: teardown net " + networkType + ": " + feature); |
| } |
| tracker.teardown(); |
| return 1; |
| } else { |
| return -1; |
| } |
| } |
| |
| /** |
| * Check if the address falls into any of currently running VPN's route's. |
| */ |
| private boolean isAddressUnderVpn(InetAddress address) { |
| synchronized (mVpns) { |
| synchronized (mRoutesLock) { |
| int uid = UserHandle.getCallingUserId(); |
| Vpn vpn = mVpns.get(uid); |
| if (vpn == null) { |
| return false; |
| } |
| |
| // Check if an exemption exists for this address. |
| for (LinkAddress destination : mExemptAddresses) { |
| if (!NetworkUtils.addressTypeMatches(address, destination.getAddress())) { |
| continue; |
| } |
| |
| int prefix = destination.getNetworkPrefixLength(); |
| InetAddress addrMasked = NetworkUtils.getNetworkPart(address, prefix); |
| InetAddress destMasked = NetworkUtils.getNetworkPart(destination.getAddress(), |
| prefix); |
| |
| if (addrMasked.equals(destMasked)) { |
| return false; |
| } |
| } |
| |
| // Finally check if the address is covered by the VPN. |
| return vpn.isAddressCovered(address); |
| } |
| } |
| } |
| |
| /** |
| * @deprecated use requestRouteToHostAddress instead |
| * |
| * Ensure that a network route exists to deliver traffic to the specified |
| * host via the specified network interface. |
| * @param networkType the type of the network over which traffic to the |
| * specified host is to be routed |
| * @param hostAddress the IP address of the host to which the route is |
| * desired |
| * @return {@code true} on success, {@code false} on failure |
| */ |
| public boolean requestRouteToHost(int networkType, int hostAddress, String packageName) { |
| InetAddress inetAddress = NetworkUtils.intToInetAddress(hostAddress); |
| |
| if (inetAddress == null) { |
| return false; |
| } |
| |
| return requestRouteToHostAddress(networkType, inetAddress.getAddress(), packageName); |
| } |
| |
| /** |
| * Ensure that a network route exists to deliver traffic to the specified |
| * host via the specified network interface. |
| * @param networkType the type of the network over which traffic to the |
| * specified host is to be routed |
| * @param hostAddress the IP address of the host to which the route is |
| * desired |
| * @return {@code true} on success, {@code false} on failure |
| */ |
| public boolean requestRouteToHostAddress(int networkType, byte[] hostAddress, |
| String packageName) { |
| enforceChangePermission(); |
| if (mProtectedNetworks.contains(networkType)) { |
| enforceConnectivityInternalPermission(); |
| } |
| boolean exempt; |
| InetAddress addr; |
| try { |
| addr = InetAddress.getByAddress(hostAddress); |
| } catch (UnknownHostException e) { |
| if (DBG) log("requestRouteToHostAddress got " + e.toString()); |
| return false; |
| } |
| // System apps may request routes bypassing the VPN to keep other networks working. |
| if (Binder.getCallingUid() == Process.SYSTEM_UID) { |
| exempt = true; |
| } else { |
| mAppOpsManager.checkPackage(Binder.getCallingUid(), packageName); |
| try { |
| ApplicationInfo info = mContext.getPackageManager().getApplicationInfo(packageName, |
| 0); |
| exempt = (info.flags & ApplicationInfo.FLAG_SYSTEM) != 0; |
| } catch (NameNotFoundException e) { |
| throw new IllegalArgumentException("Failed to find calling package details", e); |
| } |
| } |
| |
| // Non-exempt routeToHost's can only be added if the host is not covered by the VPN. |
| // This can be either because the VPN's routes do not cover the destination or a |
| // system application added an exemption that covers this destination. |
| if (!exempt && isAddressUnderVpn(addr)) { |
| return false; |
| } |
| |
| if (!ConnectivityManager.isNetworkTypeValid(networkType)) { |
| if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); |
| return false; |
| } |
| NetworkStateTracker tracker = mNetTrackers[networkType]; |
| DetailedState netState = tracker.getNetworkInfo().getDetailedState(); |
| |
| if (tracker == null || (netState != DetailedState.CONNECTED && |
| netState != DetailedState.CAPTIVE_PORTAL_CHECK) || |
| tracker.isTeardownRequested()) { |
| if (VDBG) { |
| log("requestRouteToHostAddress on down network " |
| + "(" + networkType + ") - dropped" |
| + " tracker=" + tracker |
| + " netState=" + netState |
| + " isTeardownRequested=" |
| + ((tracker != null) ? tracker.isTeardownRequested() : "tracker:null")); |
| } |
| return false; |
| } |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| LinkProperties lp = tracker.getLinkProperties(); |
| boolean ok = addRouteToAddress(lp, addr, exempt); |
| if (DBG) log("requestRouteToHostAddress ok=" + ok); |
| return ok; |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| private boolean addRoute(LinkProperties p, RouteInfo r, boolean toDefaultTable, |
| boolean exempt) { |
| return modifyRoute(p, r, 0, ADD, toDefaultTable, exempt); |
| } |
| |
| private boolean removeRoute(LinkProperties p, RouteInfo r, boolean toDefaultTable) { |
| return modifyRoute(p, r, 0, REMOVE, toDefaultTable, UNEXEMPT); |
| } |
| |
| private boolean addRouteToAddress(LinkProperties lp, InetAddress addr, boolean exempt) { |
| return modifyRouteToAddress(lp, addr, ADD, TO_DEFAULT_TABLE, exempt); |
| } |
| |
| private boolean removeRouteToAddress(LinkProperties lp, InetAddress addr) { |
| return modifyRouteToAddress(lp, addr, REMOVE, TO_DEFAULT_TABLE, UNEXEMPT); |
| } |
| |
| private boolean modifyRouteToAddress(LinkProperties lp, InetAddress addr, boolean doAdd, |
| boolean toDefaultTable, boolean exempt) { |
| RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), addr); |
| if (bestRoute == null) { |
| bestRoute = RouteInfo.makeHostRoute(addr, lp.getInterfaceName()); |
| } else { |
| String iface = bestRoute.getInterface(); |
| if (bestRoute.getGateway().equals(addr)) { |
| // if there is no better route, add the implied hostroute for our gateway |
| bestRoute = RouteInfo.makeHostRoute(addr, iface); |
| } else { |
| // if we will connect to this through another route, add a direct route |
| // to it's gateway |
| bestRoute = RouteInfo.makeHostRoute(addr, bestRoute.getGateway(), iface); |
| } |
| } |
| return modifyRoute(lp, bestRoute, 0, doAdd, toDefaultTable, exempt); |
| } |
| |
| private boolean modifyRoute(LinkProperties lp, RouteInfo r, int cycleCount, boolean doAdd, |
| boolean toDefaultTable, boolean exempt) { |
| if ((lp == null) || (r == null)) { |
| if (DBG) log("modifyRoute got unexpected null: " + lp + ", " + r); |
| return false; |
| } |
| |
| if (cycleCount > MAX_HOSTROUTE_CYCLE_COUNT) { |
| loge("Error modifying route - too much recursion"); |
| return false; |
| } |
| |
| String ifaceName = r.getInterface(); |
| if(ifaceName == null) { |
| loge("Error modifying route - no interface name"); |
| return false; |
| } |
| if (r.hasGateway()) { |
| RouteInfo bestRoute = RouteInfo.selectBestRoute(lp.getAllRoutes(), r.getGateway()); |
| if (bestRoute != null) { |
| if (bestRoute.getGateway().equals(r.getGateway())) { |
| // if there is no better route, add the implied hostroute for our gateway |
| bestRoute = RouteInfo.makeHostRoute(r.getGateway(), ifaceName); |
| } else { |
| // if we will connect to our gateway through another route, add a direct |
| // route to it's gateway |
| bestRoute = RouteInfo.makeHostRoute(r.getGateway(), |
| bestRoute.getGateway(), |
| ifaceName); |
| } |
| modifyRoute(lp, bestRoute, cycleCount+1, doAdd, toDefaultTable, exempt); |
| } |
| } |
| if (doAdd) { |
| if (VDBG) log("Adding " + r + " for interface " + ifaceName); |
| try { |
| if (toDefaultTable) { |
| synchronized (mRoutesLock) { |
| // only track default table - only one apps can effect |
| mAddedRoutes.add(r); |
| mNetd.addRoute(ifaceName, r); |
| if (exempt) { |
| LinkAddress dest = r.getDestination(); |
| if (!mExemptAddresses.contains(dest)) { |
| mNetd.setHostExemption(dest); |
| mExemptAddresses.add(dest); |
| } |
| } |
| } |
| } else { |
| mNetd.addSecondaryRoute(ifaceName, r); |
| } |
| } catch (Exception e) { |
| // never crash - catch them all |
| if (DBG) loge("Exception trying to add a route: " + e); |
| return false; |
| } |
| } else { |
| // if we remove this one and there are no more like it, then refcount==0 and |
| // we can remove it from the table |
| if (toDefaultTable) { |
| synchronized (mRoutesLock) { |
| mAddedRoutes.remove(r); |
| if (mAddedRoutes.contains(r) == false) { |
| if (VDBG) log("Removing " + r + " for interface " + ifaceName); |
| try { |
| mNetd.removeRoute(ifaceName, r); |
| LinkAddress dest = r.getDestination(); |
| if (mExemptAddresses.contains(dest)) { |
| mNetd.clearHostExemption(dest); |
| mExemptAddresses.remove(dest); |
| } |
| } catch (Exception e) { |
| // never crash - catch them all |
| if (VDBG) loge("Exception trying to remove a route: " + e); |
| return false; |
| } |
| } else { |
| if (VDBG) log("not removing " + r + " as it's still in use"); |
| } |
| } |
| } else { |
| if (VDBG) log("Removing " + r + " for interface " + ifaceName); |
| try { |
| mNetd.removeSecondaryRoute(ifaceName, r); |
| } catch (Exception e) { |
| // never crash - catch them all |
| if (VDBG) loge("Exception trying to remove a route: " + e); |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| /** |
| * @see ConnectivityManager#getMobileDataEnabled() |
| */ |
| public boolean getMobileDataEnabled() { |
| // TODO: This detail should probably be in DataConnectionTracker's |
| // which is where we store the value and maybe make this |
| // asynchronous. |
| enforceAccessPermission(); |
| boolean retVal = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.MOBILE_DATA, 1) == 1; |
| if (VDBG) log("getMobileDataEnabled returning " + retVal); |
| return retVal; |
| } |
| |
| public void setDataDependency(int networkType, boolean met) { |
| enforceConnectivityInternalPermission(); |
| |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_DEPENDENCY_MET, |
| (met ? ENABLED : DISABLED), networkType)); |
| } |
| |
| private void handleSetDependencyMet(int networkType, boolean met) { |
| if (mNetTrackers[networkType] != null) { |
| if (DBG) { |
| log("handleSetDependencyMet(" + networkType + ", " + met + ")"); |
| } |
| mNetTrackers[networkType].setDependencyMet(met); |
| } |
| } |
| |
| private INetworkPolicyListener mPolicyListener = new INetworkPolicyListener.Stub() { |
| @Override |
| public void onUidRulesChanged(int uid, int uidRules) { |
| // caller is NPMS, since we only register with them |
| if (LOGD_RULES) { |
| log("onUidRulesChanged(uid=" + uid + ", uidRules=" + uidRules + ")"); |
| } |
| |
| synchronized (mRulesLock) { |
| // skip update when we've already applied rules |
| final int oldRules = mUidRules.get(uid, RULE_ALLOW_ALL); |
| if (oldRules == uidRules) return; |
| |
| mUidRules.put(uid, uidRules); |
| } |
| |
| // TODO: notify UID when it has requested targeted updates |
| } |
| |
| @Override |
| public void onMeteredIfacesChanged(String[] meteredIfaces) { |
| // caller is NPMS, since we only register with them |
| if (LOGD_RULES) { |
| log("onMeteredIfacesChanged(ifaces=" + Arrays.toString(meteredIfaces) + ")"); |
| } |
| |
| synchronized (mRulesLock) { |
| mMeteredIfaces.clear(); |
| for (String iface : meteredIfaces) { |
| mMeteredIfaces.add(iface); |
| } |
| } |
| } |
| |
| @Override |
| public void onRestrictBackgroundChanged(boolean restrictBackground) { |
| // caller is NPMS, since we only register with them |
| if (LOGD_RULES) { |
| log("onRestrictBackgroundChanged(restrictBackground=" + restrictBackground + ")"); |
| } |
| |
| // kick off connectivity change broadcast for active network, since |
| // global background policy change is radical. |
| final int networkType = mActiveDefaultNetwork; |
| if (isNetworkTypeValid(networkType)) { |
| final NetworkStateTracker tracker = mNetTrackers[networkType]; |
| if (tracker != null) { |
| final NetworkInfo info = tracker.getNetworkInfo(); |
| if (info != null && info.isConnected()) { |
| sendConnectedBroadcast(info); |
| } |
| } |
| } |
| } |
| }; |
| |
| /** |
| * @see ConnectivityManager#setMobileDataEnabled(boolean) |
| */ |
| public void setMobileDataEnabled(boolean enabled) { |
| enforceChangePermission(); |
| if (DBG) log("setMobileDataEnabled(" + enabled + ")"); |
| |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_SET_MOBILE_DATA, |
| (enabled ? ENABLED : DISABLED), 0)); |
| } |
| |
| private void handleSetMobileData(boolean enabled) { |
| if (mNetTrackers[ConnectivityManager.TYPE_MOBILE] != null) { |
| if (VDBG) { |
| log(mNetTrackers[ConnectivityManager.TYPE_MOBILE].toString() + enabled); |
| } |
| mNetTrackers[ConnectivityManager.TYPE_MOBILE].setUserDataEnable(enabled); |
| } |
| if (mNetTrackers[ConnectivityManager.TYPE_WIMAX] != null) { |
| if (VDBG) { |
| log(mNetTrackers[ConnectivityManager.TYPE_WIMAX].toString() + enabled); |
| } |
| mNetTrackers[ConnectivityManager.TYPE_WIMAX].setUserDataEnable(enabled); |
| } |
| } |
| |
| @Override |
| public void setPolicyDataEnable(int networkType, boolean enabled) { |
| // only someone like NPMS should only be calling us |
| mContext.enforceCallingOrSelfPermission(MANAGE_NETWORK_POLICY, TAG); |
| |
| mHandler.sendMessage(mHandler.obtainMessage( |
| EVENT_SET_POLICY_DATA_ENABLE, networkType, (enabled ? ENABLED : DISABLED))); |
| } |
| |
| private void handleSetPolicyDataEnable(int networkType, boolean enabled) { |
| if (isNetworkTypeValid(networkType)) { |
| final NetworkStateTracker tracker = mNetTrackers[networkType]; |
| if (tracker != null) { |
| tracker.setPolicyDataEnable(enabled); |
| } |
| } |
| } |
| |
| private void enforceAccessPermission() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, |
| "ConnectivityService"); |
| } |
| |
| private void enforceChangePermission() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, |
| "ConnectivityService"); |
| } |
| |
| // TODO Make this a special check when it goes public |
| private void enforceTetherChangePermission() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CHANGE_NETWORK_STATE, |
| "ConnectivityService"); |
| } |
| |
| private void enforceTetherAccessPermission() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, |
| "ConnectivityService"); |
| } |
| |
| private void enforceConnectivityInternalPermission() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.CONNECTIVITY_INTERNAL, |
| "ConnectivityService"); |
| } |
| |
| private void enforceMarkNetworkSocketPermission() { |
| //Media server special case |
| if (Binder.getCallingUid() == Process.MEDIA_UID) { |
| return; |
| } |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.MARK_NETWORK_SOCKET, |
| "ConnectivityService"); |
| } |
| |
| /** |
| * Handle a {@code DISCONNECTED} event. If this pertains to the non-active |
| * network, we ignore it. If it is for the active network, we send out a |
| * broadcast. But first, we check whether it might be possible to connect |
| * to a different network. |
| * @param info the {@code NetworkInfo} for the network |
| */ |
| private void handleDisconnect(NetworkInfo info) { |
| |
| int prevNetType = info.getType(); |
| |
| mNetTrackers[prevNetType].setTeardownRequested(false); |
| |
| // Remove idletimer previously setup in {@code handleConnect} |
| removeDataActivityTracking(prevNetType); |
| |
| /* |
| * If the disconnected network is not the active one, then don't report |
| * this as a loss of connectivity. What probably happened is that we're |
| * getting the disconnect for a network that we explicitly disabled |
| * in accordance with network preference policies. |
| */ |
| if (!mNetConfigs[prevNetType].isDefault()) { |
| List<Integer> pids = mNetRequestersPids[prevNetType]; |
| for (Integer pid : pids) { |
| // will remove them because the net's no longer connected |
| // need to do this now as only now do we know the pids and |
| // can properly null things that are no longer referenced. |
| reassessPidDns(pid.intValue(), false); |
| } |
| } |
| |
| Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); |
| intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); |
| intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); |
| if (info.isFailover()) { |
| intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); |
| info.setFailover(false); |
| } |
| if (info.getReason() != null) { |
| intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); |
| } |
| if (info.getExtraInfo() != null) { |
| intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, |
| info.getExtraInfo()); |
| } |
| |
| if (mNetConfigs[prevNetType].isDefault()) { |
| tryFailover(prevNetType); |
| if (mActiveDefaultNetwork != -1) { |
| NetworkInfo switchTo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo(); |
| intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, switchTo); |
| } else { |
| mDefaultInetConditionPublished = 0; // we're not connected anymore |
| intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); |
| } |
| } |
| intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); |
| |
| // Reset interface if no other connections are using the same interface |
| boolean doReset = true; |
| LinkProperties linkProperties = mNetTrackers[prevNetType].getLinkProperties(); |
| if (linkProperties != null) { |
| String oldIface = linkProperties.getInterfaceName(); |
| if (TextUtils.isEmpty(oldIface) == false) { |
| for (NetworkStateTracker networkStateTracker : mNetTrackers) { |
| if (networkStateTracker == null) continue; |
| NetworkInfo networkInfo = networkStateTracker.getNetworkInfo(); |
| if (networkInfo.isConnected() && networkInfo.getType() != prevNetType) { |
| LinkProperties l = networkStateTracker.getLinkProperties(); |
| if (l == null) continue; |
| if (oldIface.equals(l.getInterfaceName())) { |
| doReset = false; |
| break; |
| } |
| } |
| } |
| } |
| } |
| |
| // do this before we broadcast the change |
| handleConnectivityChange(prevNetType, doReset); |
| |
| final Intent immediateIntent = new Intent(intent); |
| immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); |
| sendStickyBroadcast(immediateIntent); |
| sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); |
| /* |
| * If the failover network is already connected, then immediately send |
| * out a followup broadcast indicating successful failover |
| */ |
| if (mActiveDefaultNetwork != -1) { |
| sendConnectedBroadcastDelayed(mNetTrackers[mActiveDefaultNetwork].getNetworkInfo(), |
| getConnectivityChangeDelay()); |
| } |
| } |
| |
| private void tryFailover(int prevNetType) { |
| /* |
| * If this is a default network, check if other defaults are available. |
| * Try to reconnect on all available and let them hash it out when |
| * more than one connects. |
| */ |
| if (mNetConfigs[prevNetType].isDefault()) { |
| if (mActiveDefaultNetwork == prevNetType) { |
| if (DBG) { |
| log("tryFailover: set mActiveDefaultNetwork=-1, prevNetType=" + prevNetType); |
| } |
| mActiveDefaultNetwork = -1; |
| } |
| |
| // don't signal a reconnect for anything lower or equal priority than our |
| // current connected default |
| // TODO - don't filter by priority now - nice optimization but risky |
| // int currentPriority = -1; |
| // if (mActiveDefaultNetwork != -1) { |
| // currentPriority = mNetConfigs[mActiveDefaultNetwork].mPriority; |
| // } |
| |
| for (int checkType=0; checkType <= ConnectivityManager.MAX_NETWORK_TYPE; checkType++) { |
| if (checkType == prevNetType) continue; |
| if (mNetConfigs[checkType] == null) continue; |
| if (!mNetConfigs[checkType].isDefault()) continue; |
| if (mNetTrackers[checkType] == null) continue; |
| |
| // Enabling the isAvailable() optimization caused mobile to not get |
| // selected if it was in the middle of error handling. Specifically |
| // a moble connection that took 30 seconds to complete the DEACTIVATE_DATA_CALL |
| // would not be available and we wouldn't get connected to anything. |
| // So removing the isAvailable() optimization below for now. TODO: This |
| // optimization should work and we need to investigate why it doesn't work. |
| // This could be related to how DEACTIVATE_DATA_CALL is reporting its |
| // complete before it is really complete. |
| |
| // if (!mNetTrackers[checkType].isAvailable()) continue; |
| |
| // if (currentPriority >= mNetConfigs[checkType].mPriority) continue; |
| |
| NetworkStateTracker checkTracker = mNetTrackers[checkType]; |
| NetworkInfo checkInfo = checkTracker.getNetworkInfo(); |
| if (!checkInfo.isConnectedOrConnecting() || checkTracker.isTeardownRequested()) { |
| checkInfo.setFailover(true); |
| checkTracker.reconnect(); |
| } |
| if (DBG) log("Attempting to switch to " + checkInfo.getTypeName()); |
| } |
| } |
| } |
| |
| public void sendConnectedBroadcast(NetworkInfo info) { |
| enforceConnectivityInternalPermission(); |
| sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); |
| sendGeneralBroadcast(info, CONNECTIVITY_ACTION); |
| } |
| |
| private void sendConnectedBroadcastDelayed(NetworkInfo info, int delayMs) { |
| sendGeneralBroadcast(info, CONNECTIVITY_ACTION_IMMEDIATE); |
| sendGeneralBroadcastDelayed(info, CONNECTIVITY_ACTION, delayMs); |
| } |
| |
| private void sendInetConditionBroadcast(NetworkInfo info) { |
| sendGeneralBroadcast(info, ConnectivityManager.INET_CONDITION_ACTION); |
| } |
| |
| private Intent makeGeneralIntent(NetworkInfo info, String bcastType) { |
| if (mLockdownTracker != null) { |
| info = mLockdownTracker.augmentNetworkInfo(info); |
| } |
| |
| Intent intent = new Intent(bcastType); |
| intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); |
| intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); |
| if (info.isFailover()) { |
| intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); |
| info.setFailover(false); |
| } |
| if (info.getReason() != null) { |
| intent.putExtra(ConnectivityManager.EXTRA_REASON, info.getReason()); |
| } |
| if (info.getExtraInfo() != null) { |
| intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, |
| info.getExtraInfo()); |
| } |
| intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); |
| return intent; |
| } |
| |
| private void sendGeneralBroadcast(NetworkInfo info, String bcastType) { |
| sendStickyBroadcast(makeGeneralIntent(info, bcastType)); |
| } |
| |
| private void sendGeneralBroadcastDelayed(NetworkInfo info, String bcastType, int delayMs) { |
| sendStickyBroadcastDelayed(makeGeneralIntent(info, bcastType), delayMs); |
| } |
| |
| private void sendDataActivityBroadcast(int deviceType, boolean active) { |
| Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); |
| intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); |
| intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, |
| RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| /** |
| * Called when an attempt to fail over to another network has failed. |
| * @param info the {@link NetworkInfo} for the failed network |
| */ |
| private void handleConnectionFailure(NetworkInfo info) { |
| mNetTrackers[info.getType()].setTeardownRequested(false); |
| |
| String reason = info.getReason(); |
| String extraInfo = info.getExtraInfo(); |
| |
| String reasonText; |
| if (reason == null) { |
| reasonText = "."; |
| } else { |
| reasonText = " (" + reason + ")."; |
| } |
| loge("Attempt to connect to " + info.getTypeName() + " failed" + reasonText); |
| |
| Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); |
| intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, new NetworkInfo(info)); |
| intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); |
| if (getActiveNetworkInfo() == null) { |
| intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); |
| } |
| if (reason != null) { |
| intent.putExtra(ConnectivityManager.EXTRA_REASON, reason); |
| } |
| if (extraInfo != null) { |
| intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, extraInfo); |
| } |
| if (info.isFailover()) { |
| intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); |
| info.setFailover(false); |
| } |
| |
| if (mNetConfigs[info.getType()].isDefault()) { |
| tryFailover(info.getType()); |
| if (mActiveDefaultNetwork != -1) { |
| NetworkInfo switchTo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo(); |
| intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, switchTo); |
| } else { |
| mDefaultInetConditionPublished = 0; |
| intent.putExtra(ConnectivityManager.EXTRA_NO_CONNECTIVITY, true); |
| } |
| } |
| |
| intent.putExtra(ConnectivityManager.EXTRA_INET_CONDITION, mDefaultInetConditionPublished); |
| |
| final Intent immediateIntent = new Intent(intent); |
| immediateIntent.setAction(CONNECTIVITY_ACTION_IMMEDIATE); |
| sendStickyBroadcast(immediateIntent); |
| sendStickyBroadcast(intent); |
| /* |
| * If the failover network is already connected, then immediately send |
| * out a followup broadcast indicating successful failover |
| */ |
| if (mActiveDefaultNetwork != -1) { |
| sendConnectedBroadcast(mNetTrackers[mActiveDefaultNetwork].getNetworkInfo()); |
| } |
| } |
| |
| private void sendStickyBroadcast(Intent intent) { |
| synchronized(this) { |
| if (!mSystemReady) { |
| mInitialBroadcast = new Intent(intent); |
| } |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| if (VDBG) { |
| log("sendStickyBroadcast: action=" + intent.getAction()); |
| } |
| |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| } |
| |
| private void sendStickyBroadcastDelayed(Intent intent, int delayMs) { |
| if (delayMs <= 0) { |
| sendStickyBroadcast(intent); |
| } else { |
| if (VDBG) { |
| log("sendStickyBroadcastDelayed: delayMs=" + delayMs + ", action=" |
| + intent.getAction()); |
| } |
| mHandler.sendMessageDelayed(mHandler.obtainMessage( |
| EVENT_SEND_STICKY_BROADCAST_INTENT, intent), delayMs); |
| } |
| } |
| |
| void systemReady() { |
| mCaptivePortalTracker = CaptivePortalTracker.makeCaptivePortalTracker(mContext, this); |
| loadGlobalProxy(); |
| |
| synchronized(this) { |
| mSystemReady = true; |
| if (mInitialBroadcast != null) { |
| mContext.sendStickyBroadcastAsUser(mInitialBroadcast, UserHandle.ALL); |
| mInitialBroadcast = null; |
| } |
| } |
| // load the global proxy at startup |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_APPLY_GLOBAL_HTTP_PROXY)); |
| |
| // Try bringing up tracker, but if KeyStore isn't ready yet, wait |
| // for user to unlock device. |
| if (!updateLockdownVpn()) { |
| final IntentFilter filter = new IntentFilter(Intent.ACTION_USER_PRESENT); |
| mContext.registerReceiver(mUserPresentReceiver, filter); |
| } |
| } |
| |
| private BroadcastReceiver mUserPresentReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| // Try creating lockdown tracker, since user present usually means |
| // unlocked keystore. |
| if (updateLockdownVpn()) { |
| mContext.unregisterReceiver(this); |
| } |
| } |
| }; |
| |
| private boolean isNewNetTypePreferredOverCurrentNetType(int type) { |
| if (((type != mNetworkPreference) |
| && (mNetConfigs[mActiveDefaultNetwork].priority > mNetConfigs[type].priority)) |
| || (mNetworkPreference == mActiveDefaultNetwork)) { |
| return false; |
| } |
| return true; |
| } |
| |
| private void handleConnect(NetworkInfo info) { |
| final int newNetType = info.getType(); |
| |
| setupDataActivityTracking(newNetType); |
| |
| // snapshot isFailover, because sendConnectedBroadcast() resets it |
| boolean isFailover = info.isFailover(); |
| final NetworkStateTracker thisNet = mNetTrackers[newNetType]; |
| final String thisIface = thisNet.getLinkProperties().getInterfaceName(); |
| |
| if (VDBG) { |
| log("handleConnect: E newNetType=" + newNetType + " thisIface=" + thisIface |
| + " isFailover" + isFailover); |
| } |
| |
| // if this is a default net and other default is running |
| // kill the one not preferred |
| if (mNetConfigs[newNetType].isDefault()) { |
| if (mActiveDefaultNetwork != -1 && mActiveDefaultNetwork != newNetType) { |
| if (isNewNetTypePreferredOverCurrentNetType(newNetType)) { |
| // tear down the other |
| NetworkStateTracker otherNet = |
| mNetTrackers[mActiveDefaultNetwork]; |
| if (DBG) { |
| log("Policy requires " + otherNet.getNetworkInfo().getTypeName() + |
| " teardown"); |
| } |
| if (!teardown(otherNet)) { |
| loge("Network declined teardown request"); |
| teardown(thisNet); |
| return; |
| } |
| } else { |
| // don't accept this one |
| if (VDBG) { |
| log("Not broadcasting CONNECT_ACTION " + |
| "to torn down network " + info.getTypeName()); |
| } |
| teardown(thisNet); |
| return; |
| } |
| } |
| synchronized (ConnectivityService.this) { |
| // have a new default network, release the transition wakelock in a second |
| // if it's held. The second pause is to allow apps to reconnect over the |
| // new network |
| if (mNetTransitionWakeLock.isHeld()) { |
| mHandler.sendMessageDelayed(mHandler.obtainMessage( |
| EVENT_CLEAR_NET_TRANSITION_WAKELOCK, |
| mNetTransitionWakeLockSerialNumber, 0), |
| 1000); |
| } |
| } |
| mActiveDefaultNetwork = newNetType; |
| // this will cause us to come up initially as unconnected and switching |
| // to connected after our normal pause unless somebody reports us as reall |
| // disconnected |
| mDefaultInetConditionPublished = 0; |
| mDefaultConnectionSequence++; |
| mInetConditionChangeInFlight = false; |
| // Don't do this - if we never sign in stay, grey |
| //reportNetworkCondition(mActiveDefaultNetwork, 100); |
| updateNetworkSettings(thisNet); |
| } |
| thisNet.setTeardownRequested(false); |
| updateMtuSizeSettings(thisNet); |
| handleConnectivityChange(newNetType, false); |
| sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); |
| |
| // notify battery stats service about this network |
| if (thisIface != null) { |
| try { |
| BatteryStatsService.getService().noteNetworkInterfaceType(thisIface, newNetType); |
| } catch (RemoteException e) { |
| // ignored; service lives in system_server |
| } |
| } |
| } |
| |
| private void handleCaptivePortalTrackerCheck(NetworkInfo info) { |
| if (DBG) log("Captive portal check " + info); |
| int type = info.getType(); |
| final NetworkStateTracker thisNet = mNetTrackers[type]; |
| if (mNetConfigs[type].isDefault()) { |
| if (mActiveDefaultNetwork != -1 && mActiveDefaultNetwork != type) { |
| if (isNewNetTypePreferredOverCurrentNetType(type)) { |
| if (DBG) log("Captive check on " + info.getTypeName()); |
| mCaptivePortalTracker.detectCaptivePortal(new NetworkInfo(info)); |
| return; |
| } else { |
| if (DBG) log("Tear down low priority net " + info.getTypeName()); |
| teardown(thisNet); |
| return; |
| } |
| } |
| } |
| |
| if (DBG) log("handleCaptivePortalTrackerCheck: call captivePortalCheckComplete ni=" + info); |
| thisNet.captivePortalCheckComplete(); |
| } |
| |
| /** @hide */ |
| @Override |
| public void captivePortalCheckComplete(NetworkInfo info) { |
| enforceConnectivityInternalPermission(); |
| if (DBG) log("captivePortalCheckComplete: ni=" + info); |
| mNetTrackers[info.getType()].captivePortalCheckComplete(); |
| } |
| |
| /** @hide */ |
| @Override |
| public void captivePortalCheckCompleted(NetworkInfo info, boolean isCaptivePortal) { |
| enforceConnectivityInternalPermission(); |
| if (DBG) log("captivePortalCheckCompleted: ni=" + info + " captive=" + isCaptivePortal); |
| mNetTrackers[info.getType()].captivePortalCheckCompleted(isCaptivePortal); |
| } |
| |
| /** |
| * Setup data activity tracking for the given network interface. |
| * |
| * Every {@code setupDataActivityTracking} should be paired with a |
| * {@link removeDataActivityTracking} for cleanup. |
| */ |
| private void setupDataActivityTracking(int type) { |
| final NetworkStateTracker thisNet = mNetTrackers[type]; |
| final String iface = thisNet.getLinkProperties().getInterfaceName(); |
| |
| final int timeout; |
| |
| if (ConnectivityManager.isNetworkTypeMobile(type)) { |
| timeout = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, |
| 0); |
| // Canonicalize mobile network type |
| type = ConnectivityManager.TYPE_MOBILE; |
| } else if (ConnectivityManager.TYPE_WIFI == type) { |
| timeout = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, |
| 0); |
| } else { |
| // do not track any other networks |
| timeout = 0; |
| } |
| |
| if (timeout > 0 && iface != null) { |
| try { |
| mNetd.addIdleTimer(iface, timeout, Integer.toString(type)); |
| } catch (RemoteException e) { |
| } |
| } |
| } |
| |
| /** |
| * Remove data activity tracking when network disconnects. |
| */ |
| private void removeDataActivityTracking(int type) { |
| final NetworkStateTracker net = mNetTrackers[type]; |
| final String iface = net.getLinkProperties().getInterfaceName(); |
| |
| if (iface != null && (ConnectivityManager.isNetworkTypeMobile(type) || |
| ConnectivityManager.TYPE_WIFI == type)) { |
| try { |
| // the call fails silently if no idletimer setup for this interface |
| mNetd.removeIdleTimer(iface); |
| } catch (RemoteException e) { |
| } |
| } |
| } |
| |
| /** |
| * After a change in the connectivity state of a network. We're mainly |
| * concerned with making sure that the list of DNS servers is set up |
| * according to which networks are connected, and ensuring that the |
| * right routing table entries exist. |
| */ |
| private void handleConnectivityChange(int netType, boolean doReset) { |
| int resetMask = doReset ? NetworkUtils.RESET_ALL_ADDRESSES : 0; |
| boolean exempt = ConnectivityManager.isNetworkTypeExempt(netType); |
| if (VDBG) { |
| log("handleConnectivityChange: netType=" + netType + " doReset=" + doReset |
| + " resetMask=" + resetMask); |
| } |
| |
| /* |
| * If a non-default network is enabled, add the host routes that |
| * will allow it's DNS servers to be accessed. |
| */ |
| handleDnsConfigurationChange(netType); |
| |
| LinkProperties curLp = mCurrentLinkProperties[netType]; |
| LinkProperties newLp = null; |
| |
| if (mNetTrackers[netType].getNetworkInfo().isConnected()) { |
| newLp = mNetTrackers[netType].getLinkProperties(); |
| if (VDBG) { |
| log("handleConnectivityChange: changed linkProperty[" + netType + "]:" + |
| " doReset=" + doReset + " resetMask=" + resetMask + |
| "\n curLp=" + curLp + |
| "\n newLp=" + newLp); |
| } |
| |
| if (curLp != null) { |
| if (curLp.isIdenticalInterfaceName(newLp)) { |
| CompareResult<LinkAddress> car = curLp.compareAddresses(newLp); |
| if ((car.removed.size() != 0) || (car.added.size() != 0)) { |
| for (LinkAddress linkAddr : car.removed) { |
| if (linkAddr.getAddress() instanceof Inet4Address) { |
| resetMask |= NetworkUtils.RESET_IPV4_ADDRESSES; |
| } |
| if (linkAddr.getAddress() instanceof Inet6Address) { |
| resetMask |= NetworkUtils.RESET_IPV6_ADDRESSES; |
| } |
| } |
| if (DBG) { |
| log("handleConnectivityChange: addresses changed" + |
| " linkProperty[" + netType + "]:" + " resetMask=" + resetMask + |
| "\n car=" + car); |
| } |
| } else { |
| if (DBG) { |
| log("handleConnectivityChange: address are the same reset per doReset" + |
| " linkProperty[" + netType + "]:" + |
| " resetMask=" + resetMask); |
| } |
| } |
| } else { |
| resetMask = NetworkUtils.RESET_ALL_ADDRESSES; |
| if (DBG) { |
| log("handleConnectivityChange: interface not not equivalent reset both" + |
| " linkProperty[" + netType + "]:" + |
| " resetMask=" + resetMask); |
| } |
| } |
| } |
| if (mNetConfigs[netType].isDefault()) { |
| handleApplyDefaultProxy(newLp.getHttpProxy()); |
| } |
| } else { |
| if (VDBG) { |
| log("handleConnectivityChange: changed linkProperty[" + netType + "]:" + |
| " doReset=" + doReset + " resetMask=" + resetMask + |
| "\n curLp=" + curLp + |
| "\n newLp= null"); |
| } |
| } |
| mCurrentLinkProperties[netType] = newLp; |
| boolean resetDns = updateRoutes(newLp, curLp, mNetConfigs[netType].isDefault(), exempt); |
| |
| if (resetMask != 0 || resetDns) { |
| if (VDBG) log("handleConnectivityChange: resetting"); |
| if (curLp != null) { |
| if (VDBG) log("handleConnectivityChange: resetting curLp=" + curLp); |
| for (String iface : curLp.getAllInterfaceNames()) { |
| if (TextUtils.isEmpty(iface) == false) { |
| if (resetMask != 0) { |
| if (DBG) log("resetConnections(" + iface + ", " + resetMask + ")"); |
| NetworkUtils.resetConnections(iface, resetMask); |
| |
| // Tell VPN the interface is down. It is a temporary |
| // but effective fix to make VPN aware of the change. |
| if ((resetMask & NetworkUtils.RESET_IPV4_ADDRESSES) != 0) { |
| synchronized(mVpns) { |
| for (int i = 0; i < mVpns.size(); i++) { |
| mVpns.valueAt(i).interfaceStatusChanged(iface, false); |
| } |
| } |
| } |
| } |
| if (resetDns) { |
| flushVmDnsCache(); |
| if (VDBG) log("resetting DNS cache for " + iface); |
| try { |
| mNetd.flushInterfaceDnsCache(iface); |
| } catch (Exception e) { |
| // never crash - catch them all |
| if (DBG) loge("Exception resetting dns cache: " + e); |
| } |
| } |
| } else { |
| loge("Can't reset connection for type "+netType); |
| } |
| } |
| } |
| } |
| |
| // Update 464xlat state. |
| NetworkStateTracker tracker = mNetTrackers[netType]; |
| if (mClat.requiresClat(netType, tracker)) { |
| |
| // If the connection was previously using clat, but is not using it now, stop the clat |
| // daemon. Normally, this happens automatically when the connection disconnects, but if |
| // the disconnect is not reported, or if the connection's LinkProperties changed for |
| // some other reason (e.g., handoff changes the IP addresses on the link), it would |
| // still be running. If it's not running, then stopping it is a no-op. |
| if (Nat464Xlat.isRunningClat(curLp) && !Nat464Xlat.isRunningClat(newLp)) { |
| mClat.stopClat(); |
| } |
| // If the link requires clat to be running, then start the daemon now. |
| if (mNetTrackers[netType].getNetworkInfo().isConnected()) { |
| mClat.startClat(tracker); |
| } else { |
| mClat.stopClat(); |
| } |
| } |
| |
| // TODO: Temporary notifying upstread change to Tethering. |
| // @see bug/4455071 |
| /** Notify TetheringService if interface name has been changed. */ |
| if (TextUtils.equals(mNetTrackers[netType].getNetworkInfo().getReason(), |
| PhoneConstants.REASON_LINK_PROPERTIES_CHANGED)) { |
| if (isTetheringSupported()) { |
| mTethering.handleTetherIfaceChange(); |
| } |
| } |
| } |
| |
| /** |
| * Add and remove routes using the old properties (null if not previously connected), |
| * new properties (null if becoming disconnected). May even be double null, which |
| * is a noop. |
| * Uses isLinkDefault to determine if default routes should be set or conversely if |
| * host routes should be set to the dns servers |
| * returns a boolean indicating the routes changed |
| */ |
| private boolean updateRoutes(LinkProperties newLp, LinkProperties curLp, |
| boolean isLinkDefault, boolean exempt) { |
| Collection<RouteInfo> routesToAdd = null; |
| CompareResult<InetAddress> dnsDiff = new CompareResult<InetAddress>(); |
| CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); |
| if (curLp != null) { |
| // check for the delta between the current set and the new |
| routeDiff = curLp.compareAllRoutes(newLp); |
| dnsDiff = curLp.compareDnses(newLp); |
| } else if (newLp != null) { |
| routeDiff.added = newLp.getAllRoutes(); |
| dnsDiff.added = newLp.getDnses(); |
| } |
| |
| boolean routesChanged = (routeDiff.removed.size() != 0 || routeDiff.added.size() != 0); |
| |
| for (RouteInfo r : routeDiff.removed) { |
| if (isLinkDefault || ! r.isDefaultRoute()) { |
| if (VDBG) log("updateRoutes: default remove route r=" + r); |
| removeRoute(curLp, r, TO_DEFAULT_TABLE); |
| } |
| if (isLinkDefault == false) { |
| // remove from a secondary route table |
| removeRoute(curLp, r, TO_SECONDARY_TABLE); |
| } |
| } |
| |
| if (!isLinkDefault) { |
| // handle DNS routes |
| if (routesChanged) { |
| // routes changed - remove all old dns entries and add new |
| if (curLp != null) { |
| for (InetAddress oldDns : curLp.getDnses()) { |
| removeRouteToAddress(curLp, oldDns); |
| } |
| } |
| if (newLp != null) { |
| for (InetAddress newDns : newLp.getDnses()) { |
| addRouteToAddress(newLp, newDns, exempt); |
| } |
| } |
| } else { |
| // no change in routes, check for change in dns themselves |
| for (InetAddress oldDns : dnsDiff.removed) { |
| removeRouteToAddress(curLp, oldDns); |
| } |
| for (InetAddress newDns : dnsDiff.added) { |
| addRouteToAddress(newLp, newDns, exempt); |
| } |
| } |
| } |
| |
| for (RouteInfo r : routeDiff.added) { |
| if (isLinkDefault || ! r.isDefaultRoute()) { |
| addRoute(newLp, r, TO_DEFAULT_TABLE, exempt); |
| } else { |
| // add to a secondary route table |
| addRoute(newLp, r, TO_SECONDARY_TABLE, UNEXEMPT); |
| |
| // many radios add a default route even when we don't want one. |
| // remove the default route unless somebody else has asked for it |
| String ifaceName = newLp.getInterfaceName(); |
| synchronized (mRoutesLock) { |
| if (!TextUtils.isEmpty(ifaceName) && !mAddedRoutes.contains(r)) { |
| if (VDBG) log("Removing " + r + " for interface " + ifaceName); |
| try { |
| mNetd.removeRoute(ifaceName, r); |
| } catch (Exception e) { |
| // never crash - catch them all |
| if (DBG) loge("Exception trying to remove a route: " + e); |
| } |
| } |
| } |
| } |
| } |
| |
| return routesChanged; |
| } |
| |
| /** |
| * Reads the network specific MTU size from reources. |
| * and set it on it's iface. |
| */ |
| private void updateMtuSizeSettings(NetworkStateTracker nt) { |
| final String iface = nt.getLinkProperties().getInterfaceName(); |
| final int mtu = nt.getLinkProperties().getMtu(); |
| |
| if (mtu < 68 || mtu > 10000) { |
| loge("Unexpected mtu value: " + nt); |
| return; |
| } |
| |
| try { |
| if (VDBG) log("Setting MTU size: " + iface + ", " + mtu); |
| mNetd.setMtu(iface, mtu); |
| } catch (Exception e) { |
| Slog.e(TAG, "exception in setMtu()" + e); |
| } |
| } |
| |
| /** |
| * Reads the network specific TCP buffer sizes from SystemProperties |
| * net.tcp.buffersize.[default|wifi|umts|edge|gprs] and set them for system |
| * wide use |
| */ |
| private void updateNetworkSettings(NetworkStateTracker nt) { |
| String key = nt.getTcpBufferSizesPropName(); |
| String bufferSizes = key == null ? null : SystemProperties.get(key); |
| |
| if (TextUtils.isEmpty(bufferSizes)) { |
| if (VDBG) log(key + " not found in system properties. Using defaults"); |
| |
| // Setting to default values so we won't be stuck to previous values |
| key = "net.tcp.buffersize.default"; |
| bufferSizes = SystemProperties.get(key); |
| } |
| |
| // Set values in kernel |
| if (bufferSizes.length() != 0) { |
| if (VDBG) { |
| log("Setting TCP values: [" + bufferSizes |
| + "] which comes from [" + key + "]"); |
| } |
| setBufferSize(bufferSizes); |
| } |
| |
| final String defaultRwndKey = "net.tcp.default_init_rwnd"; |
| int defaultRwndValue = SystemProperties.getInt(defaultRwndKey, 0); |
| Integer rwndValue = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.TCP_DEFAULT_INIT_RWND, defaultRwndValue); |
| final String sysctlKey = "sys.sysctl.tcp_def_init_rwnd"; |
| if (rwndValue != 0) { |
| SystemProperties.set(sysctlKey, rwndValue.toString()); |
| } |
| } |
| |
| /** |
| * Writes TCP buffer sizes to /sys/kernel/ipv4/tcp_[r/w]mem_[min/def/max] |
| * which maps to /proc/sys/net/ipv4/tcp_rmem and tcpwmem |
| * |
| * @param bufferSizes in the format of "readMin, readInitial, readMax, |
| * writeMin, writeInitial, writeMax" |
| */ |
| private void setBufferSize(String bufferSizes) { |
| try { |
| String[] values = bufferSizes.split(","); |
| |
| if (values.length == 6) { |
| final String prefix = "/sys/kernel/ipv4/tcp_"; |
| FileUtils.stringToFile(prefix + "rmem_min", values[0]); |
| FileUtils.stringToFile(prefix + "rmem_def", values[1]); |
| FileUtils.stringToFile(prefix + "rmem_max", values[2]); |
| FileUtils.stringToFile(prefix + "wmem_min", values[3]); |
| FileUtils.stringToFile(prefix + "wmem_def", values[4]); |
| FileUtils.stringToFile(prefix + "wmem_max", values[5]); |
| } else { |
| loge("Invalid buffersize string: " + bufferSizes); |
| } |
| } catch (IOException e) { |
| loge("Can't set tcp buffer sizes:" + e); |
| } |
| } |
| |
| /** |
| * Adjust the per-process dns entries (net.dns<x>.<pid>) based |
| * on the highest priority active net which this process requested. |
| * If there aren't any, clear it out |
| */ |
| private void reassessPidDns(int pid, boolean doBump) |
| { |
| if (VDBG) log("reassessPidDns for pid " + pid); |
| Integer myPid = new Integer(pid); |
| for(int i : mPriorityList) { |
| if (mNetConfigs[i].isDefault()) { |
| continue; |
| } |
| NetworkStateTracker nt = mNetTrackers[i]; |
| if (nt.getNetworkInfo().isConnected() && |
| !nt.isTeardownRequested()) { |
| LinkProperties p = nt.getLinkProperties(); |
| if (p == null) continue; |
| if (mNetRequestersPids[i].contains(myPid)) { |
| try { |
| mNetd.setDnsInterfaceForPid(p.getInterfaceName(), pid); |
| } catch (Exception e) { |
| Slog.e(TAG, "exception reasseses pid dns: " + e); |
| } |
| return; |
| } |
| } |
| } |
| // nothing found - delete |
| try { |
| mNetd.clearDnsInterfaceForPid(pid); |
| } catch (Exception e) { |
| Slog.e(TAG, "exception clear interface from pid: " + e); |
| } |
| } |
| |
| private void flushVmDnsCache() { |
| /* |
| * Tell the VMs to toss their DNS caches |
| */ |
| Intent intent = new Intent(Intent.ACTION_CLEAR_DNS_CACHE); |
| intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING); |
| /* |
| * Connectivity events can happen before boot has completed ... |
| */ |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mContext.sendBroadcastAsUser(intent, UserHandle.ALL); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| // Caller must grab mDnsLock. |
| private void updateDnsLocked(String network, String iface, |
| Collection<InetAddress> dnses, String domains, boolean defaultDns) { |
| int last = 0; |
| if (dnses.size() == 0 && mDefaultDns != null) { |
| dnses = new ArrayList(); |
| dnses.add(mDefaultDns); |
| if (DBG) { |
| loge("no dns provided for " + network + " - using " + mDefaultDns.getHostAddress()); |
| } |
| } |
| |
| try { |
| mNetd.setDnsServersForInterface(iface, NetworkUtils.makeStrings(dnses), domains); |
| if (defaultDns) { |
| mNetd.setDefaultInterfaceForDns(iface); |
| } |
| |
| for (InetAddress dns : dnses) { |
| ++last; |
| String key = "net.dns" + last; |
| String value = dns.getHostAddress(); |
| SystemProperties.set(key, value); |
| } |
| for (int i = last + 1; i <= mNumDnsEntries; ++i) { |
| String key = "net.dns" + i; |
| SystemProperties.set(key, ""); |
| } |
| mNumDnsEntries = last; |
| } catch (Exception e) { |
| loge("exception setting default dns interface: " + e); |
| } |
| } |
| |
| private void handleDnsConfigurationChange(int netType) { |
| // add default net's dns entries |
| NetworkStateTracker nt = mNetTrackers[netType]; |
| if (nt != null && nt.getNetworkInfo().isConnected() && !nt.isTeardownRequested()) { |
| LinkProperties p = nt.getLinkProperties(); |
| if (p == null) return; |
| Collection<InetAddress> dnses = p.getDnses(); |
| if (mNetConfigs[netType].isDefault()) { |
| String network = nt.getNetworkInfo().getTypeName(); |
| synchronized (mDnsLock) { |
| updateDnsLocked(network, p.getInterfaceName(), dnses, p.getDomains(), true); |
| } |
| } else { |
| try { |
| mNetd.setDnsServersForInterface(p.getInterfaceName(), |
| NetworkUtils.makeStrings(dnses), p.getDomains()); |
| } catch (Exception e) { |
| if (DBG) loge("exception setting dns servers: " + e); |
| } |
| // set per-pid dns for attached secondary nets |
| List<Integer> pids = mNetRequestersPids[netType]; |
| for (Integer pid : pids) { |
| try { |
| mNetd.setDnsInterfaceForPid(p.getInterfaceName(), pid); |
| } catch (Exception e) { |
| Slog.e(TAG, "exception setting interface for pid: " + e); |
| } |
| } |
| } |
| flushVmDnsCache(); |
| } |
| } |
| |
| private int getRestoreDefaultNetworkDelay(int networkType) { |
| String restoreDefaultNetworkDelayStr = SystemProperties.get( |
| NETWORK_RESTORE_DELAY_PROP_NAME); |
| if(restoreDefaultNetworkDelayStr != null && |
| restoreDefaultNetworkDelayStr.length() != 0) { |
| try { |
| return Integer.valueOf(restoreDefaultNetworkDelayStr); |
| } catch (NumberFormatException e) { |
| } |
| } |
| // if the system property isn't set, use the value for the apn type |
| int ret = RESTORE_DEFAULT_NETWORK_DELAY; |
| |
| if ((networkType <= ConnectivityManager.MAX_NETWORK_TYPE) && |
| (mNetConfigs[networkType] != null)) { |
| ret = mNetConfigs[networkType].restoreTime; |
| } |
| return ret; |
| } |
| |
| @Override |
| protected void dump(FileDescriptor fd, PrintWriter writer, String[] args) { |
| final IndentingPrintWriter pw = new IndentingPrintWriter(writer, " "); |
| if (mContext.checkCallingOrSelfPermission( |
| android.Manifest.permission.DUMP) |
| != PackageManager.PERMISSION_GRANTED) { |
| pw.println("Permission Denial: can't dump ConnectivityService " + |
| "from from pid=" + Binder.getCallingPid() + ", uid=" + |
| Binder.getCallingUid()); |
| return; |
| } |
| |
| // TODO: add locking to get atomic snapshot |
| pw.println(); |
| for (int i = 0; i < mNetTrackers.length; i++) { |
| final NetworkStateTracker nst = mNetTrackers[i]; |
| if (nst != null) { |
| pw.println("NetworkStateTracker for " + getNetworkTypeName(i) + ":"); |
| pw.increaseIndent(); |
| if (nst.getNetworkInfo().isConnected()) { |
| pw.println("Active network: " + nst.getNetworkInfo(). |
| getTypeName()); |
| } |
| pw.println(nst.getNetworkInfo()); |
| pw.println(nst.getLinkProperties()); |
| pw.println(nst); |
| pw.println(); |
| pw.decreaseIndent(); |
| } |
| } |
| |
| pw.println("Network Requester Pids:"); |
| pw.increaseIndent(); |
| for (int net : mPriorityList) { |
| String pidString = net + ": "; |
| for (Integer pid : mNetRequestersPids[net]) { |
| pidString = pidString + pid.toString() + ", "; |
| } |
| pw.println(pidString); |
| } |
| pw.println(); |
| pw.decreaseIndent(); |
| |
| pw.println("FeatureUsers:"); |
| pw.increaseIndent(); |
| for (Object requester : mFeatureUsers) { |
| pw.println(requester.toString()); |
| } |
| pw.println(); |
| pw.decreaseIndent(); |
| |
| synchronized (this) { |
| pw.println("NetworkTranstionWakeLock is currently " + |
| (mNetTransitionWakeLock.isHeld() ? "" : "not ") + "held."); |
| pw.println("It was last requested for "+mNetTransitionWakeLockCausedBy); |
| } |
| pw.println(); |
| |
| mTethering.dump(fd, pw, args); |
| |
| if (mInetLog != null) { |
| pw.println(); |
| pw.println("Inet condition reports:"); |
| pw.increaseIndent(); |
| for(int i = 0; i < mInetLog.size(); i++) { |
| pw.println(mInetLog.get(i)); |
| } |
| pw.decreaseIndent(); |
| } |
| } |
| |
| // must be stateless - things change under us. |
| private class NetworkStateTrackerHandler extends Handler { |
| public NetworkStateTrackerHandler(Looper looper) { |
| super(looper); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| NetworkInfo info; |
| switch (msg.what) { |
| case NetworkStateTracker.EVENT_STATE_CHANGED: { |
| info = (NetworkInfo) msg.obj; |
| NetworkInfo.State state = info.getState(); |
| |
| if (VDBG || (state == NetworkInfo.State.CONNECTED) || |
| (state == NetworkInfo.State.DISCONNECTED) || |
| (state == NetworkInfo.State.SUSPENDED)) { |
| log("ConnectivityChange for " + |
| info.getTypeName() + ": " + |
| state + "/" + info.getDetailedState()); |
| } |
| |
| // Since mobile has the notion of a network/apn that can be used for |
| // provisioning we need to check every time we're connected as |
| // CaptiveProtalTracker won't detected it because DCT doesn't report it |
| // as connected as ACTION_ANY_DATA_CONNECTION_STATE_CHANGED instead its |
| // reported as ACTION_DATA_CONNECTION_CONNECTED_TO_PROVISIONING_APN. Which |
| // is received by MDST and sent here as EVENT_STATE_CHANGED. |
| if (ConnectivityManager.isNetworkTypeMobile(info.getType()) |
| && (0 != Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.DEVICE_PROVISIONED, 0)) |
| && (((state == NetworkInfo.State.CONNECTED) |
| && (info.getType() == ConnectivityManager.TYPE_MOBILE)) |
| || info.isConnectedToProvisioningNetwork())) { |
| log("ConnectivityChange checkMobileProvisioning for" |
| + " TYPE_MOBILE or ProvisioningNetwork"); |
| checkMobileProvisioning(CheckMp.MAX_TIMEOUT_MS); |
| } |
| |
| EventLogTags.writeConnectivityStateChanged( |
| info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); |
| |
| if (info.getDetailedState() == |
| NetworkInfo.DetailedState.FAILED) { |
| handleConnectionFailure(info); |
| } else if (info.getDetailedState() == |
| DetailedState.CAPTIVE_PORTAL_CHECK) { |
| handleCaptivePortalTrackerCheck(info); |
| } else if (info.isConnectedToProvisioningNetwork()) { |
| /** |
| * TODO: Create ConnectivityManager.TYPE_MOBILE_PROVISIONING |
| * for now its an in between network, its a network that |
| * is actually a default network but we don't want it to be |
| * announced as such to keep background applications from |
| * trying to use it. It turns out that some still try so we |
| * take the additional step of clearing any default routes |
| * to the link that may have incorrectly setup by the lower |
| * levels. |
| */ |
| LinkProperties lp = getLinkProperties(info.getType()); |
| if (DBG) { |
| log("EVENT_STATE_CHANGED: connected to provisioning network, lp=" + lp); |
| } |
| |
| // Clear any default routes setup by the radio so |
| // any activity by applications trying to use this |
| // connection will fail until the provisioning network |
| // is enabled. |
| for (RouteInfo r : lp.getRoutes()) { |
| removeRoute(lp, r, TO_DEFAULT_TABLE); |
| } |
| } else if (state == NetworkInfo.State.DISCONNECTED) { |
| handleDisconnect(info); |
| } else if (state == NetworkInfo.State.SUSPENDED) { |
| // TODO: need to think this over. |
| // the logic here is, handle SUSPENDED the same as |
| // DISCONNECTED. The only difference being we are |
| // broadcasting an intent with NetworkInfo that's |
| // suspended. This allows the applications an |
| // opportunity to handle DISCONNECTED and SUSPENDED |
| // differently, or not. |
| handleDisconnect(info); |
| } else if (state == NetworkInfo.State.CONNECTED) { |
| handleConnect(info); |
| } |
| if (mLockdownTracker != null) { |
| mLockdownTracker.onNetworkInfoChanged(info); |
| } |
| break; |
| } |
| case NetworkStateTracker.EVENT_CONFIGURATION_CHANGED: { |
| info = (NetworkInfo) msg.obj; |
| // TODO: Temporary allowing network configuration |
| // change not resetting sockets. |
| // @see bug/4455071 |
| handleConnectivityChange(info.getType(), false); |
| break; |
| } |
| case NetworkStateTracker.EVENT_NETWORK_SUBTYPE_CHANGED: { |
| info = (NetworkInfo) msg.obj; |
| int type = info.getType(); |
| if (mNetConfigs[type].isDefault()) updateNetworkSettings(mNetTrackers[type]); |
| break; |
| } |
| } |
| } |
| } |
| |
| private class InternalHandler extends Handler { |
| public InternalHandler(Looper looper) { |
| super(looper); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| NetworkInfo info; |
| switch (msg.what) { |
| case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { |
| String causedBy = null; |
| synchronized (ConnectivityService.this) { |
| if (msg.arg1 == mNetTransitionWakeLockSerialNumber && |
| mNetTransitionWakeLock.isHeld()) { |
| mNetTransitionWakeLock.release(); |
| causedBy = mNetTransitionWakeLockCausedBy; |
| } |
| } |
| if (causedBy != null) { |
| log("NetTransition Wakelock for " + causedBy + " released by timeout"); |
| } |
| break; |
| } |
| case EVENT_RESTORE_DEFAULT_NETWORK: { |
| FeatureUser u = (FeatureUser)msg.obj; |
| u.expire(); |
| break; |
| } |
| case EVENT_INET_CONDITION_CHANGE: { |
| int netType = msg.arg1; |
| int condition = msg.arg2; |
| handleInetConditionChange(netType, condition); |
| break; |
| } |
| case EVENT_INET_CONDITION_HOLD_END: { |
| int netType = msg.arg1; |
| int sequence = msg.arg2; |
| handleInetConditionHoldEnd(netType, sequence); |
| break; |
| } |
| case EVENT_SET_NETWORK_PREFERENCE: { |
| int preference = msg.arg1; |
| handleSetNetworkPreference(preference); |
| break; |
| } |
| case EVENT_SET_MOBILE_DATA: { |
| boolean enabled = (msg.arg1 == ENABLED); |
| handleSetMobileData(enabled); |
| break; |
| } |
| case EVENT_APPLY_GLOBAL_HTTP_PROXY: { |
| handleDeprecatedGlobalHttpProxy(); |
| break; |
| } |
| case EVENT_SET_DEPENDENCY_MET: { |
| boolean met = (msg.arg1 == ENABLED); |
| handleSetDependencyMet(msg.arg2, met); |
| break; |
| } |
| case EVENT_SEND_STICKY_BROADCAST_INTENT: { |
| Intent intent = (Intent)msg.obj; |
| sendStickyBroadcast(intent); |
| break; |
| } |
| case EVENT_SET_POLICY_DATA_ENABLE: { |
| final int networkType = msg.arg1; |
| final boolean enabled = msg.arg2 == ENABLED; |
| handleSetPolicyDataEnable(networkType, enabled); |
| break; |
| } |
| case EVENT_VPN_STATE_CHANGED: { |
| if (mLockdownTracker != null) { |
| mLockdownTracker.onVpnStateChanged((NetworkInfo) msg.obj); |
| } |
| break; |
| } |
| case EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: { |
| int tag = mEnableFailFastMobileDataTag.get(); |
| if (msg.arg1 == tag) { |
| MobileDataStateTracker mobileDst = |
| (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE]; |
| if (mobileDst != null) { |
| mobileDst.setEnableFailFastMobileData(msg.arg2); |
| } |
| } else { |
| log("EVENT_ENABLE_FAIL_FAST_MOBILE_DATA: stale arg1:" + msg.arg1 |
| + " != tag:" + tag); |
| } |
| break; |
| } |
| case EVENT_SAMPLE_INTERVAL_ELAPSED: { |
| handleNetworkSamplingTimeout(); |
| break; |
| } |
| case EVENT_PROXY_HAS_CHANGED: { |
| handleApplyDefaultProxy((ProxyProperties)msg.obj); |
| break; |
| } |
| } |
| } |
| } |
| |
| // javadoc from interface |
| public int tether(String iface) { |
| enforceTetherChangePermission(); |
| |
| if (isTetheringSupported()) { |
| return mTethering.tether(iface); |
| } else { |
| return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; |
| } |
| } |
| |
| // javadoc from interface |
| public int untether(String iface) { |
| enforceTetherChangePermission(); |
| |
| if (isTetheringSupported()) { |
| return mTethering.untether(iface); |
| } else { |
| return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; |
| } |
| } |
| |
| // javadoc from interface |
| public int getLastTetherError(String iface) { |
| enforceTetherAccessPermission(); |
| |
| if (isTetheringSupported()) { |
| return mTethering.getLastTetherError(iface); |
| } else { |
| return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; |
| } |
| } |
| |
| // TODO - proper iface API for selection by property, inspection, etc |
| public String[] getTetherableUsbRegexs() { |
| enforceTetherAccessPermission(); |
| if (isTetheringSupported()) { |
| return mTethering.getTetherableUsbRegexs(); |
| } else { |
| return new String[0]; |
| } |
| } |
| |
| public String[] getTetherableWifiRegexs() { |
| enforceTetherAccessPermission(); |
| if (isTetheringSupported()) { |
| return mTethering.getTetherableWifiRegexs(); |
| } else { |
| return new String[0]; |
| } |
| } |
| |
| public String[] getTetherableBluetoothRegexs() { |
| enforceTetherAccessPermission(); |
| if (isTetheringSupported()) { |
| return mTethering.getTetherableBluetoothRegexs(); |
| } else { |
| return new String[0]; |
| } |
| } |
| |
| public int setUsbTethering(boolean enable) { |
| enforceTetherChangePermission(); |
| if (isTetheringSupported()) { |
| return mTethering.setUsbTethering(enable); |
| } else { |
| return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; |
| } |
| } |
| |
| // TODO - move iface listing, queries, etc to new module |
| // javadoc from interface |
| public String[] getTetherableIfaces() { |
| enforceTetherAccessPermission(); |
| return mTethering.getTetherableIfaces(); |
| } |
| |
| public String[] getTetheredIfaces() { |
| enforceTetherAccessPermission(); |
| return mTethering.getTetheredIfaces(); |
| } |
| |
| public String[] getTetheringErroredIfaces() { |
| enforceTetherAccessPermission(); |
| return mTethering.getErroredIfaces(); |
| } |
| |
| // if ro.tether.denied = true we default to no tethering |
| // gservices could set the secure setting to 1 though to enable it on a build where it |
| // had previously been turned off. |
| public boolean isTetheringSupported() { |
| enforceTetherAccessPermission(); |
| int defaultVal = (SystemProperties.get("ro.tether.denied").equals("true") ? 0 : 1); |
| boolean tetherEnabledInSettings = (Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.TETHER_SUPPORTED, defaultVal) != 0); |
| return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || |
| mTethering.getTetherableWifiRegexs().length != 0 || |
| mTethering.getTetherableBluetoothRegexs().length != 0) && |
| mTethering.getUpstreamIfaceTypes().length != 0); |
| } |
| |
| // An API NetworkStateTrackers can call when they lose their network. |
| // This will automatically be cleared after X seconds or a network becomes CONNECTED, |
| // whichever happens first. The timer is started by the first caller and not |
| // restarted by subsequent callers. |
| public void requestNetworkTransitionWakelock(String forWhom) { |
| enforceConnectivityInternalPermission(); |
| synchronized (this) { |
| if (mNetTransitionWakeLock.isHeld()) return; |
| mNetTransitionWakeLockSerialNumber++; |
| mNetTransitionWakeLock.acquire(); |
| mNetTransitionWakeLockCausedBy = forWhom; |
| } |
| mHandler.sendMessageDelayed(mHandler.obtainMessage( |
| EVENT_CLEAR_NET_TRANSITION_WAKELOCK, |
| mNetTransitionWakeLockSerialNumber, 0), |
| mNetTransitionWakeLockTimeout); |
| return; |
| } |
| |
| // 100 percent is full good, 0 is full bad. |
| public void reportInetCondition(int networkType, int percentage) { |
| if (VDBG) log("reportNetworkCondition(" + networkType + ", " + percentage + ")"); |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.STATUS_BAR, |
| "ConnectivityService"); |
| |
| if (DBG) { |
| int pid = getCallingPid(); |
| int uid = getCallingUid(); |
| String s = pid + "(" + uid + ") reports inet is " + |
| (percentage > 50 ? "connected" : "disconnected") + " (" + percentage + ") on " + |
| "network Type " + networkType + " at " + GregorianCalendar.getInstance().getTime(); |
| mInetLog.add(s); |
| while(mInetLog.size() > INET_CONDITION_LOG_MAX_SIZE) { |
| mInetLog.remove(0); |
| } |
| } |
| mHandler.sendMessage(mHandler.obtainMessage( |
| EVENT_INET_CONDITION_CHANGE, networkType, percentage)); |
| } |
| |
| private void handleInetConditionChange(int netType, int condition) { |
| if (mActiveDefaultNetwork == -1) { |
| if (DBG) log("handleInetConditionChange: no active default network - ignore"); |
| return; |
| } |
| if (mActiveDefaultNetwork != netType) { |
| if (DBG) log("handleInetConditionChange: net=" + netType + |
| " != default=" + mActiveDefaultNetwork + " - ignore"); |
| return; |
| } |
| if (VDBG) { |
| log("handleInetConditionChange: net=" + |
| netType + ", condition=" + condition + |
| ",mActiveDefaultNetwork=" + mActiveDefaultNetwork); |
| } |
| mDefaultInetCondition = condition; |
| int delay; |
| if (mInetConditionChangeInFlight == false) { |
| if (VDBG) log("handleInetConditionChange: starting a change hold"); |
| // setup a new hold to debounce this |
| if (mDefaultInetCondition > 50) { |
| delay = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.INET_CONDITION_DEBOUNCE_UP_DELAY, 500); |
| } else { |
| delay = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.INET_CONDITION_DEBOUNCE_DOWN_DELAY, 3000); |
| } |
| mInetConditionChangeInFlight = true; |
| mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_INET_CONDITION_HOLD_END, |
| mActiveDefaultNetwork, mDefaultConnectionSequence), delay); |
| } else { |
| // we've set the new condition, when this hold ends that will get picked up |
| if (VDBG) log("handleInetConditionChange: currently in hold - not setting new end evt"); |
| } |
| } |
| |
| private void handleInetConditionHoldEnd(int netType, int sequence) { |
| if (DBG) { |
| log("handleInetConditionHoldEnd: net=" + netType + |
| ", condition=" + mDefaultInetCondition + |
| ", published condition=" + mDefaultInetConditionPublished); |
| } |
| mInetConditionChangeInFlight = false; |
| |
| if (mActiveDefaultNetwork == -1) { |
| if (DBG) log("handleInetConditionHoldEnd: no active default network - ignoring"); |
| return; |
| } |
| if (mDefaultConnectionSequence != sequence) { |
| if (DBG) log("handleInetConditionHoldEnd: event hold for obsolete network - ignoring"); |
| return; |
| } |
| // TODO: Figure out why this optimization sometimes causes a |
| // change in mDefaultInetCondition to be missed and the |
| // UI to not be updated. |
| //if (mDefaultInetConditionPublished == mDefaultInetCondition) { |
| // if (DBG) log("no change in condition - aborting"); |
| // return; |
| //} |
| NetworkInfo networkInfo = mNetTrackers[mActiveDefaultNetwork].getNetworkInfo(); |
| if (networkInfo.isConnected() == false) { |
| if (DBG) log("handleInetConditionHoldEnd: default network not connected - ignoring"); |
| return; |
| } |
| mDefaultInetConditionPublished = mDefaultInetCondition; |
| sendInetConditionBroadcast(networkInfo); |
| return; |
| } |
| |
| public ProxyProperties getProxy() { |
| // this information is already available as a world read/writable jvm property |
| // so this API change wouldn't have a benifit. It also breaks the passing |
| // of proxy info to all the JVMs. |
| // enforceAccessPermission(); |
| synchronized (mProxyLock) { |
| ProxyProperties ret = mGlobalProxy; |
| if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; |
| return ret; |
| } |
| } |
| |
| public void setGlobalProxy(ProxyProperties proxyProperties) { |
| enforceConnectivityInternalPermission(); |
| |
| synchronized (mProxyLock) { |
| if (proxyProperties == mGlobalProxy) return; |
| if (proxyProperties != null && proxyProperties.equals(mGlobalProxy)) return; |
| if (mGlobalProxy != null && mGlobalProxy.equals(proxyProperties)) return; |
| |
| String host = ""; |
| int port = 0; |
| String exclList = ""; |
| String pacFileUrl = ""; |
| if (proxyProperties != null && (!TextUtils.isEmpty(proxyProperties.getHost()) || |
| !TextUtils.isEmpty(proxyProperties.getPacFileUrl()))) { |
| if (!proxyProperties.isValid()) { |
| if (DBG) |
| log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); |
| return; |
| } |
| mGlobalProxy = new ProxyProperties(proxyProperties); |
| host = mGlobalProxy.getHost(); |
| port = mGlobalProxy.getPort(); |
| exclList = mGlobalProxy.getExclusionList(); |
| if (proxyProperties.getPacFileUrl() != null) { |
| pacFileUrl = proxyProperties.getPacFileUrl(); |
| } |
| } else { |
| mGlobalProxy = null; |
| } |
| ContentResolver res = mContext.getContentResolver(); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST, host); |
| Settings.Global.putInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, port); |
| Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST, |
| exclList); |
| Settings.Global.putString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC, pacFileUrl); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| if (mGlobalProxy == null) { |
| proxyProperties = mDefaultProxy; |
| } |
| sendProxyBroadcast(proxyProperties); |
| } |
| |
| private void loadGlobalProxy() { |
| ContentResolver res = mContext.getContentResolver(); |
| String host = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_HOST); |
| int port = Settings.Global.getInt(res, Settings.Global.GLOBAL_HTTP_PROXY_PORT, 0); |
| String exclList = Settings.Global.getString(res, |
| Settings.Global.GLOBAL_HTTP_PROXY_EXCLUSION_LIST); |
| String pacFileUrl = Settings.Global.getString(res, Settings.Global.GLOBAL_HTTP_PROXY_PAC); |
| if (!TextUtils.isEmpty(host) || !TextUtils.isEmpty(pacFileUrl)) { |
| ProxyProperties proxyProperties; |
| if (!TextUtils.isEmpty(pacFileUrl)) { |
| proxyProperties = new ProxyProperties(pacFileUrl); |
| } else { |
| proxyProperties = new ProxyProperties(host, port, exclList); |
| } |
| if (!proxyProperties.isValid()) { |
| if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); |
| return; |
| } |
| |
| synchronized (mProxyLock) { |
| mGlobalProxy = proxyProperties; |
| } |
| } |
| } |
| |
| public ProxyProperties getGlobalProxy() { |
| // this information is already available as a world read/writable jvm property |
| // so this API change wouldn't have a benifit. It also breaks the passing |
| // of proxy info to all the JVMs. |
| // enforceAccessPermission(); |
| synchronized (mProxyLock) { |
| return mGlobalProxy; |
| } |
| } |
| |
| private void handleApplyDefaultProxy(ProxyProperties proxy) { |
| if (proxy != null && TextUtils.isEmpty(proxy.getHost()) |
| && TextUtils.isEmpty(proxy.getPacFileUrl())) { |
| proxy = null; |
| } |
| synchronized (mProxyLock) { |
| if (mDefaultProxy != null && mDefaultProxy.equals(proxy)) return; |
| if (mDefaultProxy == proxy) return; // catches repeated nulls |
| if (proxy != null && !proxy.isValid()) { |
| if (DBG) log("Invalid proxy properties, ignoring: " + proxy.toString()); |
| return; |
| } |
| mDefaultProxy = proxy; |
| |
| if (mGlobalProxy != null) return; |
| if (!mDefaultProxyDisabled) { |
| sendProxyBroadcast(proxy); |
| } |
| } |
| } |
| |
| private void handleDeprecatedGlobalHttpProxy() { |
| String proxy = Settings.Global.getString(mContext.getContentResolver(), |
| Settings.Global.HTTP_PROXY); |
| if (!TextUtils.isEmpty(proxy)) { |
| String data[] = proxy.split(":"); |
| if (data.length == 0) { |
| return; |
| } |
| |
| String proxyHost = data[0]; |
| int proxyPort = 8080; |
| if (data.length > 1) { |
| try { |
| proxyPort = Integer.parseInt(data[1]); |
| } catch (NumberFormatException e) { |
| return; |
| } |
| } |
| ProxyProperties p = new ProxyProperties(data[0], proxyPort, ""); |
| setGlobalProxy(p); |
| } |
| } |
| |
| private void sendProxyBroadcast(ProxyProperties proxy) { |
| if (proxy == null) proxy = new ProxyProperties("", 0, ""); |
| if (mPacManager.setCurrentProxyScriptUrl(proxy)) return; |
| if (DBG) log("sending Proxy Broadcast for " + proxy); |
| Intent intent = new Intent(Proxy.PROXY_CHANGE_ACTION); |
| intent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING | |
| Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| intent.putExtra(Proxy.EXTRA_PROXY_INFO, proxy); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mContext.sendStickyBroadcastAsUser(intent, UserHandle.ALL); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| private static class SettingsObserver extends ContentObserver { |
| private int mWhat; |
| private Handler mHandler; |
| SettingsObserver(Handler handler, int what) { |
| super(handler); |
| mHandler = handler; |
| mWhat = what; |
| } |
| |
| void observe(Context context) { |
| ContentResolver resolver = context.getContentResolver(); |
| resolver.registerContentObserver(Settings.Global.getUriFor( |
| Settings.Global.HTTP_PROXY), false, this); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange) { |
| mHandler.obtainMessage(mWhat).sendToTarget(); |
| } |
| } |
| |
| private static void log(String s) { |
| Slog.d(TAG, s); |
| } |
| |
| private static void loge(String s) { |
| Slog.e(TAG, s); |
| } |
| |
| int convertFeatureToNetworkType(int networkType, String feature) { |
| int usedNetworkType = networkType; |
| |
| if(networkType == ConnectivityManager.TYPE_MOBILE) { |
| if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_MMS)) { |
| usedNetworkType = ConnectivityManager.TYPE_MOBILE_MMS; |
| } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_SUPL)) { |
| usedNetworkType = ConnectivityManager.TYPE_MOBILE_SUPL; |
| } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN) || |
| TextUtils.equals(feature, Phone.FEATURE_ENABLE_DUN_ALWAYS)) { |
| usedNetworkType = ConnectivityManager.TYPE_MOBILE_DUN; |
| } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_HIPRI)) { |
| usedNetworkType = ConnectivityManager.TYPE_MOBILE_HIPRI; |
| } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_FOTA)) { |
| usedNetworkType = ConnectivityManager.TYPE_MOBILE_FOTA; |
| } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_IMS)) { |
| usedNetworkType = ConnectivityManager.TYPE_MOBILE_IMS; |
| } else if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_CBS)) { |
| usedNetworkType = ConnectivityManager.TYPE_MOBILE_CBS; |
| } else { |
| Slog.e(TAG, "Can't match any mobile netTracker!"); |
| } |
| } else if (networkType == ConnectivityManager.TYPE_WIFI) { |
| if (TextUtils.equals(feature, "p2p")) { |
| usedNetworkType = ConnectivityManager.TYPE_WIFI_P2P; |
| } else { |
| Slog.e(TAG, "Can't match any wifi netTracker!"); |
| } |
| } else { |
| Slog.e(TAG, "Unexpected network type"); |
| } |
| return usedNetworkType; |
| } |
| |
| private static <T> T checkNotNull(T value, String message) { |
| if (value == null) { |
| throw new NullPointerException(message); |
| } |
| return value; |
| } |
| |
| /** |
| * Protect a socket from VPN routing rules. This method is used by |
| * VpnBuilder and not available in ConnectivityManager. Permissions |
| * are checked in Vpn class. |
| * @hide |
| */ |
| @Override |
| public boolean protectVpn(ParcelFileDescriptor socket) { |
| throwIfLockdownEnabled(); |
| try { |
| int type = mActiveDefaultNetwork; |
| int user = UserHandle.getUserId(Binder.getCallingUid()); |
| if (ConnectivityManager.isNetworkTypeValid(type) && mNetTrackers[type] != null) { |
| synchronized(mVpns) { |
| mVpns.get(user).protect(socket); |
| } |
| return true; |
| } |
| } catch (Exception e) { |
| // ignore |
| } finally { |
| try { |
| socket.close(); |
| } catch (Exception e) { |
| // ignore |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * Prepare for a VPN application. This method is used by VpnDialogs |
| * and not available in ConnectivityManager. Permissions are checked |
| * in Vpn class. |
| * @hide |
| */ |
| @Override |
| public boolean prepareVpn(String oldPackage, String newPackage) { |
| throwIfLockdownEnabled(); |
| int user = UserHandle.getUserId(Binder.getCallingUid()); |
| synchronized(mVpns) { |
| return mVpns.get(user).prepare(oldPackage, newPackage); |
| } |
| } |
| |
| @Override |
| public void markSocketAsUser(ParcelFileDescriptor socket, int uid) { |
| enforceMarkNetworkSocketPermission(); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| int mark = mNetd.getMarkForUid(uid); |
| // Clear the mark on the socket if no mark is needed to prevent socket reuse issues |
| if (mark == -1) { |
| mark = 0; |
| } |
| NetworkUtils.markSocket(socket.getFd(), mark); |
| } catch (RemoteException e) { |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| /** |
| * Configure a TUN interface and return its file descriptor. Parameters |
| * are encoded and opaque to this class. This method is used by VpnBuilder |
| * and not available in ConnectivityManager. Permissions are checked in |
| * Vpn class. |
| * @hide |
| */ |
| @Override |
| public ParcelFileDescriptor establishVpn(VpnConfig config) { |
| throwIfLockdownEnabled(); |
| int user = UserHandle.getUserId(Binder.getCallingUid()); |
| synchronized(mVpns) { |
| return mVpns.get(user).establish(config); |
| } |
| } |
| |
| /** |
| * Start legacy VPN, controlling native daemons as needed. Creates a |
| * secondary thread to perform connection work, returning quickly. |
| */ |
| @Override |
| public void startLegacyVpn(VpnProfile profile) { |
| throwIfLockdownEnabled(); |
| final LinkProperties egress = getActiveLinkProperties(); |
| if (egress == null) { |
| throw new IllegalStateException("Missing active network connection"); |
| } |
| int user = UserHandle.getUserId(Binder.getCallingUid()); |
| synchronized(mVpns) { |
| mVpns.get(user).startLegacyVpn(profile, mKeyStore, egress); |
| } |
| } |
| |
| /** |
| * Return the information of the ongoing legacy VPN. This method is used |
| * by VpnSettings and not available in ConnectivityManager. Permissions |
| * are checked in Vpn class. |
| * @hide |
| */ |
| @Override |
| public LegacyVpnInfo getLegacyVpnInfo() { |
| throwIfLockdownEnabled(); |
| int user = UserHandle.getUserId(Binder.getCallingUid()); |
| synchronized(mVpns) { |
| return mVpns.get(user).getLegacyVpnInfo(); |
| } |
| } |
| |
| /** |
| * Returns the information of the ongoing VPN. This method is used by VpnDialogs and |
| * not available in ConnectivityManager. |
| * Permissions are checked in Vpn class. |
| * @hide |
| */ |
| @Override |
| public VpnConfig getVpnConfig() { |
| int user = UserHandle.getUserId(Binder.getCallingUid()); |
| synchronized(mVpns) { |
| return mVpns.get(user).getVpnConfig(); |
| } |
| } |
| |
| /** |
| * Callback for VPN subsystem. Currently VPN is not adapted to the service |
| * through NetworkStateTracker since it works differently. For example, it |
| * needs to override DNS servers but never takes the default routes. It |
| * relies on another data network, and it could keep existing connections |
| * alive after reconnecting, switching between networks, or even resuming |
| * from deep sleep. Calls from applications should be done synchronously |
| * to avoid race conditions. As these are all hidden APIs, refactoring can |
| * be done whenever a better abstraction is developed. |
| */ |
| public class VpnCallback { |
| private VpnCallback() { |
| } |
| |
| public void onStateChanged(NetworkInfo info) { |
| mHandler.obtainMessage(EVENT_VPN_STATE_CHANGED, info).sendToTarget(); |
| } |
| |
| public void override(String iface, List<String> dnsServers, List<String> searchDomains) { |
| if (dnsServers == null) { |
| restore(); |
| return; |
| } |
| |
| // Convert DNS servers into addresses. |
| List<InetAddress> addresses = new ArrayList<InetAddress>(); |
| for (String address : dnsServers) { |
| // Double check the addresses and remove invalid ones. |
| try { |
| addresses.add(InetAddress.parseNumericAddress(address)); |
| } catch (Exception e) { |
| // ignore |
| } |
| } |
| if (addresses.isEmpty()) { |
| restore(); |
| return; |
| } |
| |
| // Concatenate search domains into a string. |
| StringBuilder buffer = new StringBuilder(); |
| if (searchDomains != null) { |
| for (String domain : searchDomains) { |
| buffer.append(domain).append(' '); |
| } |
| } |
| String domains = buffer.toString().trim(); |
| |
| // Apply DNS changes. |
| synchronized (mDnsLock) { |
| updateDnsLocked("VPN", iface, addresses, domains, false); |
| } |
| |
| // Temporarily disable the default proxy (not global). |
| synchronized (mProxyLock) { |
| mDefaultProxyDisabled = true; |
| if (mGlobalProxy == null && mDefaultProxy != null) { |
| sendProxyBroadcast(null); |
| } |
| } |
| |
| // TODO: support proxy per network. |
| } |
| |
| public void restore() { |
| synchronized (mProxyLock) { |
| mDefaultProxyDisabled = false; |
| if (mGlobalProxy == null && mDefaultProxy != null) { |
| sendProxyBroadcast(mDefaultProxy); |
| } |
| } |
| } |
| |
| public void protect(ParcelFileDescriptor socket) { |
| try { |
| final int mark = mNetd.getMarkForProtect(); |
| NetworkUtils.markSocket(socket.getFd(), mark); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| public void setRoutes(String interfaze, List<RouteInfo> routes) { |
| for (RouteInfo route : routes) { |
| try { |
| mNetd.setMarkedForwardingRoute(interfaze, route); |
| } catch (RemoteException e) { |
| } |
| } |
| } |
| |
| public void setMarkedForwarding(String interfaze) { |
| try { |
| mNetd.setMarkedForwarding(interfaze); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| public void clearMarkedForwarding(String interfaze) { |
| try { |
| mNetd.clearMarkedForwarding(interfaze); |
| } catch (RemoteException e) { |
| } |
| } |
| |
| public void addUserForwarding(String interfaze, int uid, boolean forwardDns) { |
| int uidStart = uid * UserHandle.PER_USER_RANGE; |
| int uidEnd = uidStart + UserHandle.PER_USER_RANGE - 1; |
| addUidForwarding(interfaze, uidStart, uidEnd, forwardDns); |
| } |
| |
| public void clearUserForwarding(String interfaze, int uid, boolean forwardDns) { |
| int uidStart = uid * UserHandle.PER_USER_RANGE; |
| int uidEnd = uidStart + UserHandle.PER_USER_RANGE - 1; |
| clearUidForwarding(interfaze, uidStart, uidEnd, forwardDns); |
| } |
| |
| public void addUidForwarding(String interfaze, int uidStart, int uidEnd, |
| boolean forwardDns) { |
| try { |
| mNetd.setUidRangeRoute(interfaze,uidStart, uidEnd); |
| if (forwardDns) mNetd.setDnsInterfaceForUidRange(interfaze, uidStart, uidEnd); |
| } catch (RemoteException e) { |
| } |
| |
| } |
| |
| public void clearUidForwarding(String interfaze, int uidStart, int uidEnd, |
| boolean forwardDns) { |
| try { |
| mNetd.clearUidRangeRoute(interfaze, uidStart, uidEnd); |
| if (forwardDns) mNetd.clearDnsInterfaceForUidRange(interfaze, uidStart, uidEnd); |
| } catch (RemoteException e) { |
| } |
| |
| } |
| } |
| |
| @Override |
| public boolean updateLockdownVpn() { |
| if (Binder.getCallingUid() != Process.SYSTEM_UID) { |
| Slog.w(TAG, "Lockdown VPN only available to AID_SYSTEM"); |
| return false; |
| } |
| |
| // Tear down existing lockdown if profile was removed |
| mLockdownEnabled = LockdownVpnTracker.isEnabled(); |
| if (mLockdownEnabled) { |
| if (!mKeyStore.isUnlocked()) { |
| Slog.w(TAG, "KeyStore locked; unable to create LockdownTracker"); |
| return false; |
| } |
| |
| final String profileName = new String(mKeyStore.get(Credentials.LOCKDOWN_VPN)); |
| final VpnProfile profile = VpnProfile.decode( |
| profileName, mKeyStore.get(Credentials.VPN + profileName)); |
| int user = UserHandle.getUserId(Binder.getCallingUid()); |
| synchronized(mVpns) { |
| setLockdownTracker(new LockdownVpnTracker(mContext, mNetd, this, mVpns.get(user), |
| profile)); |
| } |
| } else { |
| setLockdownTracker(null); |
| } |
| |
| return true; |
| } |
| |
| /** |
| * Internally set new {@link LockdownVpnTracker}, shutting down any existing |
| * {@link LockdownVpnTracker}. Can be {@code null} to disable lockdown. |
| */ |
| private void setLockdownTracker(LockdownVpnTracker tracker) { |
| // Shutdown any existing tracker |
| final LockdownVpnTracker existing = mLockdownTracker; |
| mLockdownTracker = null; |
| if (existing != null) { |
| existing.shutdown(); |
| } |
| |
| try { |
| if (tracker != null) { |
| mNetd.setFirewallEnabled(true); |
| mNetd.setFirewallInterfaceRule("lo", true); |
| mLockdownTracker = tracker; |
| mLockdownTracker.init(); |
| } else { |
| mNetd.setFirewallEnabled(false); |
| } |
| } catch (RemoteException e) { |
| // ignored; NMS lives inside system_server |
| } |
| } |
| |
| private void throwIfLockdownEnabled() { |
| if (mLockdownEnabled) { |
| throw new IllegalStateException("Unavailable in lockdown mode"); |
| } |
| } |
| |
| public void supplyMessenger(int networkType, Messenger messenger) { |
| enforceConnectivityInternalPermission(); |
| |
| if (isNetworkTypeValid(networkType) && mNetTrackers[networkType] != null) { |
| mNetTrackers[networkType].supplyMessenger(messenger); |
| } |
| } |
| |
| public int findConnectionTypeForIface(String iface) { |
| enforceConnectivityInternalPermission(); |
| |
| if (TextUtils.isEmpty(iface)) return ConnectivityManager.TYPE_NONE; |
| for (NetworkStateTracker tracker : mNetTrackers) { |
| if (tracker != null) { |
| LinkProperties lp = tracker.getLinkProperties(); |
| if (lp != null && iface.equals(lp.getInterfaceName())) { |
| return tracker.getNetworkInfo().getType(); |
| } |
| } |
| } |
| return ConnectivityManager.TYPE_NONE; |
| } |
| |
| /** |
| * Have mobile data fail fast if enabled. |
| * |
| * @param enabled DctConstants.ENABLED/DISABLED |
| */ |
| private void setEnableFailFastMobileData(int enabled) { |
| int tag; |
| |
| if (enabled == DctConstants.ENABLED) { |
| tag = mEnableFailFastMobileDataTag.incrementAndGet(); |
| } else { |
| tag = mEnableFailFastMobileDataTag.get(); |
| } |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_ENABLE_FAIL_FAST_MOBILE_DATA, tag, |
| enabled)); |
| } |
| |
| private boolean isMobileDataStateTrackerReady() { |
| MobileDataStateTracker mdst = |
| (MobileDataStateTracker) mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; |
| return (mdst != null) && (mdst.isReady()); |
| } |
| |
| /** |
| * The ResultReceiver resultCode for checkMobileProvisioning (CMP_RESULT_CODE) |
| */ |
| |
| /** |
| * No connection was possible to the network. |
| * This is NOT a warm sim. |
| */ |
| private static final int CMP_RESULT_CODE_NO_CONNECTION = 0; |
| |
| /** |
| * A connection was made to the internet, all is well. |
| * This is NOT a warm sim. |
| */ |
| private static final int CMP_RESULT_CODE_CONNECTABLE = 1; |
| |
| /** |
| * A connection was made but no dns server was available to resolve a name to address. |
| * This is NOT a warm sim since provisioning network is supported. |
| */ |
| private static final int CMP_RESULT_CODE_NO_DNS = 2; |
| |
| /** |
| * A connection was made but could not open a TCP connection. |
| * This is NOT a warm sim since provisioning network is supported. |
| */ |
| private static final int CMP_RESULT_CODE_NO_TCP_CONNECTION = 3; |
| |
| /** |
| * A connection was made but there was a redirection, we appear to be in walled garden. |
| * This is an indication of a warm sim on a mobile network such as T-Mobile. |
| */ |
| private static final int CMP_RESULT_CODE_REDIRECTED = 4; |
| |
| /** |
| * The mobile network is a provisioning network. |
| * This is an indication of a warm sim on a mobile network such as AT&T. |
| */ |
| private static final int CMP_RESULT_CODE_PROVISIONING_NETWORK = 5; |
| |
| /** |
| * The mobile network is provisioning |
| */ |
| private static final int CMP_RESULT_CODE_IS_PROVISIONING = 6; |
| |
| private AtomicBoolean mIsProvisioningNetwork = new AtomicBoolean(false); |
| private AtomicBoolean mIsStartingProvisioning = new AtomicBoolean(false); |
| |
| private AtomicBoolean mIsCheckingMobileProvisioning = new AtomicBoolean(false); |
| |
| @Override |
| public int checkMobileProvisioning(int suggestedTimeOutMs) { |
| int timeOutMs = -1; |
| if (DBG) log("checkMobileProvisioning: E suggestedTimeOutMs=" + suggestedTimeOutMs); |
| enforceConnectivityInternalPermission(); |
| |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| timeOutMs = suggestedTimeOutMs; |
| if (suggestedTimeOutMs > CheckMp.MAX_TIMEOUT_MS) { |
| timeOutMs = CheckMp.MAX_TIMEOUT_MS; |
| } |
| |
| // Check that mobile networks are supported |
| if (!isNetworkSupported(ConnectivityManager.TYPE_MOBILE) |
| || !isNetworkSupported(ConnectivityManager.TYPE_MOBILE_HIPRI)) { |
| if (DBG) log("checkMobileProvisioning: X no mobile network"); |
| return timeOutMs; |
| } |
| |
| // If we're already checking don't do it again |
| // TODO: Add a queue of results... |
| if (mIsCheckingMobileProvisioning.getAndSet(true)) { |
| if (DBG) log("checkMobileProvisioning: X already checking ignore for the moment"); |
| return timeOutMs; |
| } |
| |
| // Start off with mobile notification off |
| setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); |
| |
| CheckMp checkMp = new CheckMp(mContext, this); |
| CheckMp.CallBack cb = new CheckMp.CallBack() { |
| @Override |
| void onComplete(Integer result) { |
| if (DBG) log("CheckMp.onComplete: result=" + result); |
| NetworkInfo ni = |
| mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI].getNetworkInfo(); |
| switch(result) { |
| case CMP_RESULT_CODE_CONNECTABLE: |
| case CMP_RESULT_CODE_NO_CONNECTION: |
| case CMP_RESULT_CODE_NO_DNS: |
| case CMP_RESULT_CODE_NO_TCP_CONNECTION: { |
| if (DBG) log("CheckMp.onComplete: ignore, connected or no connection"); |
| break; |
| } |
| case CMP_RESULT_CODE_REDIRECTED: { |
| if (DBG) log("CheckMp.onComplete: warm sim"); |
| String url = getMobileProvisioningUrl(); |
| if (TextUtils.isEmpty(url)) { |
| url = getMobileRedirectedProvisioningUrl(); |
| } |
| if (TextUtils.isEmpty(url) == false) { |
| if (DBG) log("CheckMp.onComplete: warm (redirected), url=" + url); |
| setProvNotificationVisible(true, |
| ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), |
| url); |
| } else { |
| if (DBG) log("CheckMp.onComplete: warm (redirected), no url"); |
| } |
| break; |
| } |
| case CMP_RESULT_CODE_PROVISIONING_NETWORK: { |
| String url = getMobileProvisioningUrl(); |
| if (TextUtils.isEmpty(url) == false) { |
| if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), url=" + url); |
| setProvNotificationVisible(true, |
| ConnectivityManager.TYPE_MOBILE_HIPRI, ni.getExtraInfo(), |
| url); |
| // Mark that we've got a provisioning network and |
| // Disable Mobile Data until user actually starts provisioning. |
| mIsProvisioningNetwork.set(true); |
| MobileDataStateTracker mdst = (MobileDataStateTracker) |
| mNetTrackers[ConnectivityManager.TYPE_MOBILE]; |
| |
| // Disable radio until user starts provisioning |
| mdst.setRadio(false); |
| } else { |
| if (DBG) log("CheckMp.onComplete: warm (no dns/tcp), no url"); |
| } |
| break; |
| } |
| case CMP_RESULT_CODE_IS_PROVISIONING: { |
| // FIXME: Need to know when provisioning is done. Probably we can |
| // check the completion status if successful we're done if we |
| // "timedout" or still connected to provisioning APN turn off data? |
| if (DBG) log("CheckMp.onComplete: provisioning started"); |
| mIsStartingProvisioning.set(false); |
| break; |
| } |
| default: { |
| loge("CheckMp.onComplete: ignore unexpected result=" + result); |
| break; |
| } |
| } |
| mIsCheckingMobileProvisioning.set(false); |
| } |
| }; |
| CheckMp.Params params = |
| new CheckMp.Params(checkMp.getDefaultUrl(), timeOutMs, cb); |
| if (DBG) log("checkMobileProvisioning: params=" + params); |
| checkMp.execute(params); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| if (DBG) log("checkMobileProvisioning: X"); |
| } |
| return timeOutMs; |
| } |
| |
| static class CheckMp extends |
| AsyncTask<CheckMp.Params, Void, Integer> { |
| private static final String CHECKMP_TAG = "CheckMp"; |
| |
| // adb shell setprop persist.checkmp.testfailures 1 to enable testing failures |
| private static boolean mTestingFailures; |
| |
| // Choosing 4 loops as half of them will use HTTPS and the other half HTTP |
| private static final int MAX_LOOPS = 4; |
| |
| // Number of milli-seconds to complete all of the retires |
| public static final int MAX_TIMEOUT_MS = 60000; |
| |
| // The socket should retry only 5 seconds, the default is longer |
| private static final int SOCKET_TIMEOUT_MS = 5000; |
| |
| // Sleep time for network errors |
| private static final int NET_ERROR_SLEEP_SEC = 3; |
| |
| // Sleep time for network route establishment |
| private static final int NET_ROUTE_ESTABLISHMENT_SLEEP_SEC = 3; |
| |
| // Short sleep time for polling :( |
| private static final int POLLING_SLEEP_SEC = 1; |
| |
| private Context mContext; |
| private ConnectivityService mCs; |
| private TelephonyManager mTm; |
| private Params mParams; |
| |
| /** |
| * Parameters for AsyncTask.execute |
| */ |
| static class Params { |
| private String mUrl; |
| private long mTimeOutMs; |
| private CallBack mCb; |
| |
| Params(String url, long timeOutMs, CallBack cb) { |
| mUrl = url; |
| mTimeOutMs = timeOutMs; |
| mCb = cb; |
| } |
| |
| @Override |
| public String toString() { |
| return "{" + " url=" + mUrl + " mTimeOutMs=" + mTimeOutMs + " mCb=" + mCb + "}"; |
| } |
| } |
| |
| // As explained to me by Brian Carlstrom and Kenny Root, Certificates can be |
| // issued by name or ip address, for Google its by name so when we construct |
| // this HostnameVerifier we'll pass the original Uri and use it to verify |
| // the host. If the host name in the original uril fails we'll test the |
| // hostname parameter just incase things change. |
| static class CheckMpHostnameVerifier implements HostnameVerifier { |
| Uri mOrgUri; |
| |
| CheckMpHostnameVerifier(Uri orgUri) { |
| mOrgUri = orgUri; |
| } |
| |
| @Override |
| public boolean verify(String hostname, SSLSession session) { |
| HostnameVerifier hv = HttpsURLConnection.getDefaultHostnameVerifier(); |
| String orgUriHost = mOrgUri.getHost(); |
| boolean retVal = hv.verify(orgUriHost, session) || hv.verify(hostname, session); |
| if (DBG) { |
| log("isMobileOk: hostnameVerify retVal=" + retVal + " hostname=" + hostname |
| + " orgUriHost=" + orgUriHost); |
| } |
| return retVal; |
| } |
| } |
| |
| /** |
| * The call back object passed in Params. onComplete will be called |
| * on the main thread. |
| */ |
| abstract static class CallBack { |
| // Called on the main thread. |
| abstract void onComplete(Integer result); |
| } |
| |
| public CheckMp(Context context, ConnectivityService cs) { |
| if (Build.IS_DEBUGGABLE) { |
| mTestingFailures = |
| SystemProperties.getInt("persist.checkmp.testfailures", 0) == 1; |
| } else { |
| mTestingFailures = false; |
| } |
| |
| mContext = context; |
| mCs = cs; |
| |
| // Setup access to TelephonyService we'll be using. |
| mTm = (TelephonyManager) mContext.getSystemService( |
| Context.TELEPHONY_SERVICE); |
| } |
| |
| /** |
| * Get the default url to use for the test. |
| */ |
| public String getDefaultUrl() { |
| // See http://go/clientsdns for usage approval |
| String server = Settings.Global.getString(mContext.getContentResolver(), |
| Settings.Global.CAPTIVE_PORTAL_SERVER); |
| if (server == null) { |
| server = "clients3.google.com"; |
| } |
| return "http://" + server + "/generate_204"; |
| } |
| |
| /** |
| * Detect if its possible to connect to the http url. DNS based detection techniques |
| * do not work at all hotspots. The best way to check is to perform a request to |
| * a known address that fetches the data we expect. |
| */ |
| private synchronized Integer isMobileOk(Params params) { |
| Integer result = CMP_RESULT_CODE_NO_CONNECTION; |
| Uri orgUri = Uri.parse(params.mUrl); |
| Random rand = new Random(); |
| mParams = params; |
| |
| if (mCs.isNetworkSupported(ConnectivityManager.TYPE_MOBILE) == false) { |
| result = CMP_RESULT_CODE_NO_CONNECTION; |
| log("isMobileOk: X not mobile capable result=" + result); |
| return result; |
| } |
| |
| if (mCs.mIsStartingProvisioning.get()) { |
| result = CMP_RESULT_CODE_IS_PROVISIONING; |
| log("isMobileOk: X is provisioning result=" + result); |
| return result; |
| } |
| |
| // See if we've already determined we've got a provisioning connection, |
| // if so we don't need to do anything active. |
| MobileDataStateTracker mdstDefault = (MobileDataStateTracker) |
| mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE]; |
| boolean isDefaultProvisioning = mdstDefault.isProvisioningNetwork(); |
| log("isMobileOk: isDefaultProvisioning=" + isDefaultProvisioning); |
| |
| MobileDataStateTracker mdstHipri = (MobileDataStateTracker) |
| mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; |
| boolean isHipriProvisioning = mdstHipri.isProvisioningNetwork(); |
| log("isMobileOk: isHipriProvisioning=" + isHipriProvisioning); |
| |
| if (isDefaultProvisioning || isHipriProvisioning) { |
| result = CMP_RESULT_CODE_PROVISIONING_NETWORK; |
| log("isMobileOk: X default || hipri is provisioning result=" + result); |
| return result; |
| } |
| |
| try { |
| // Continue trying to connect until time has run out |
| long endTime = SystemClock.elapsedRealtime() + params.mTimeOutMs; |
| |
| if (!mCs.isMobileDataStateTrackerReady()) { |
| // Wait for MobileDataStateTracker to be ready. |
| if (DBG) log("isMobileOk: mdst is not ready"); |
| while(SystemClock.elapsedRealtime() < endTime) { |
| if (mCs.isMobileDataStateTrackerReady()) { |
| // Enable fail fast as we'll do retries here and use a |
| // hipri connection so the default connection stays active. |
| if (DBG) log("isMobileOk: mdst ready, enable fail fast of mobile data"); |
| mCs.setEnableFailFastMobileData(DctConstants.ENABLED); |
| break; |
| } |
| sleep(POLLING_SLEEP_SEC); |
| } |
| } |
| |
| log("isMobileOk: start hipri url=" + params.mUrl); |
| |
| // First wait until we can start using hipri |
| Binder binder = new Binder(); |
| while(SystemClock.elapsedRealtime() < endTime) { |
| int ret = mCs.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, |
| Phone.FEATURE_ENABLE_HIPRI, binder); |
| if ((ret == PhoneConstants.APN_ALREADY_ACTIVE) |
| || (ret == PhoneConstants.APN_REQUEST_STARTED)) { |
| log("isMobileOk: hipri started"); |
| break; |
| } |
| if (VDBG) log("isMobileOk: hipri not started yet"); |
| result = CMP_RESULT_CODE_NO_CONNECTION; |
| sleep(POLLING_SLEEP_SEC); |
| } |
| |
| // Continue trying to connect until time has run out |
| while(SystemClock.elapsedRealtime() < endTime) { |
| try { |
| // Wait for hipri to connect. |
| // TODO: Don't poll and handle situation where hipri fails |
| // because default is retrying. See b/9569540 |
| NetworkInfo.State state = mCs |
| .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); |
| if (state != NetworkInfo.State.CONNECTED) { |
| if (true/*VDBG*/) { |
| log("isMobileOk: not connected ni=" + |
| mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); |
| } |
| sleep(POLLING_SLEEP_SEC); |
| result = CMP_RESULT_CODE_NO_CONNECTION; |
| continue; |
| } |
| |
| // Hipri has started check if this is a provisioning url |
| MobileDataStateTracker mdst = (MobileDataStateTracker) |
| mCs.mNetTrackers[ConnectivityManager.TYPE_MOBILE_HIPRI]; |
| if (mdst.isProvisioningNetwork()) { |
| result = CMP_RESULT_CODE_PROVISIONING_NETWORK; |
| if (DBG) log("isMobileOk: X isProvisioningNetwork result=" + result); |
| return result; |
| } else { |
| if (DBG) log("isMobileOk: isProvisioningNetwork is false, continue"); |
| } |
| |
| // Get of the addresses associated with the url host. We need to use the |
| // address otherwise HttpURLConnection object will use the name to get |
| // the addresses and will try every address but that will bypass the |
| // route to host we setup and the connection could succeed as the default |
| // interface might be connected to the internet via wifi or other interface. |
| InetAddress[] addresses; |
| try { |
| addresses = InetAddress.getAllByName(orgUri.getHost()); |
| } catch (UnknownHostException e) { |
| result = CMP_RESULT_CODE_NO_DNS; |
| log("isMobileOk: X UnknownHostException result=" + result); |
| return result; |
| } |
| log("isMobileOk: addresses=" + inetAddressesToString(addresses)); |
| |
| // Get the type of addresses supported by this link |
| LinkProperties lp = mCs.getLinkProperties( |
| ConnectivityManager.TYPE_MOBILE_HIPRI); |
| boolean linkHasIpv4 = lp.hasIPv4Address(); |
| boolean linkHasIpv6 = lp.hasIPv6Address(); |
| log("isMobileOk: linkHasIpv4=" + linkHasIpv4 |
| + " linkHasIpv6=" + linkHasIpv6); |
| |
| final ArrayList<InetAddress> validAddresses = |
| new ArrayList<InetAddress>(addresses.length); |
| |
| for (InetAddress addr : addresses) { |
| if (((addr instanceof Inet4Address) && linkHasIpv4) || |
| ((addr instanceof Inet6Address) && linkHasIpv6)) { |
| validAddresses.add(addr); |
| } |
| } |
| |
| if (validAddresses.size() == 0) { |
| return CMP_RESULT_CODE_NO_CONNECTION; |
| } |
| |
| int addrTried = 0; |
| while (true) { |
| // Loop through at most MAX_LOOPS valid addresses or until |
| // we run out of time |
| if (addrTried++ >= MAX_LOOPS) { |
| log("isMobileOk: too many loops tried - giving up"); |
| break; |
| } |
| if (SystemClock.elapsedRealtime() >= endTime) { |
| log("isMobileOk: spend too much time - giving up"); |
| break; |
| } |
| |
| InetAddress hostAddr = validAddresses.get(rand.nextInt( |
| validAddresses.size())); |
| |
| // Make a route to host so we check the specific interface. |
| if (mCs.requestRouteToHostAddress(ConnectivityManager.TYPE_MOBILE_HIPRI, |
| hostAddr.getAddress(), null)) { |
| // Wait a short time to be sure the route is established ?? |
| log("isMobileOk:" |
| + " wait to establish route to hostAddr=" + hostAddr); |
| sleep(NET_ROUTE_ESTABLISHMENT_SLEEP_SEC); |
| } else { |
| log("isMobileOk:" |
| + " could not establish route to hostAddr=" + hostAddr); |
| // Wait a short time before the next attempt |
| sleep(NET_ERROR_SLEEP_SEC); |
| continue; |
| } |
| |
| // Rewrite the url to have numeric address to use the specific route |
| // using http for half the attempts and https for the other half. |
| // Doing https first and http second as on a redirected walled garden |
| // such as t-mobile uses we get a SocketTimeoutException: "SSL |
| // handshake timed out" which we declare as |
| // CMP_RESULT_CODE_NO_TCP_CONNECTION. We could change this, but by |
| // having http second we will be using logic used for some time. |
| URL newUrl; |
| String scheme = (addrTried <= (MAX_LOOPS/2)) ? "https" : "http"; |
| newUrl = new URL(scheme, hostAddr.getHostAddress(), |
| orgUri.getPath()); |
| log("isMobileOk: newUrl=" + newUrl); |
| |
| HttpURLConnection urlConn = null; |
| try { |
| // Open the connection set the request headers and get the response |
| urlConn = (HttpURLConnection)newUrl.openConnection( |
| java.net.Proxy.NO_PROXY); |
| if (scheme.equals("https")) { |
| ((HttpsURLConnection)urlConn).setHostnameVerifier( |
| new CheckMpHostnameVerifier(orgUri)); |
| } |
| urlConn.setInstanceFollowRedirects(false); |
| urlConn.setConnectTimeout(SOCKET_TIMEOUT_MS); |
| urlConn.setReadTimeout(SOCKET_TIMEOUT_MS); |
| urlConn.setUseCaches(false); |
| urlConn.setAllowUserInteraction(false); |
| // Set the "Connection" to "Close" as by default "Keep-Alive" |
| // is used which is useless in this case. |
| urlConn.setRequestProperty("Connection", "close"); |
| int responseCode = urlConn.getResponseCode(); |
| |
| // For debug display the headers |
| Map<String, List<String>> headers = urlConn.getHeaderFields(); |
| log("isMobileOk: headers=" + headers); |
| |
| // Close the connection |
| urlConn.disconnect(); |
| urlConn = null; |
| |
| if (mTestingFailures) { |
| // Pretend no connection, this tests using http and https |
| result = CMP_RESULT_CODE_NO_CONNECTION; |
| log("isMobileOk: TESTING_FAILURES, pretend no connction"); |
| continue; |
| } |
| |
| if (responseCode == 204) { |
| // Return |
| result = CMP_RESULT_CODE_CONNECTABLE; |
| log("isMobileOk: X got expected responseCode=" + responseCode |
| + " result=" + result); |
| return result; |
| } else { |
| // Retry to be sure this was redirected, we've gotten |
| // occasions where a server returned 200 even though |
| // the device didn't have a "warm" sim. |
| log("isMobileOk: not expected responseCode=" + responseCode); |
| // TODO - it would be nice in the single-address case to do |
| // another DNS resolve here, but flushing the cache is a bit |
| // heavy-handed. |
| result = CMP_RESULT_CODE_REDIRECTED; |
| } |
| } catch (Exception e) { |
| log("isMobileOk: HttpURLConnection Exception" + e); |
| result = CMP_RESULT_CODE_NO_TCP_CONNECTION; |
| if (urlConn != null) { |
| urlConn.disconnect(); |
| urlConn = null; |
| } |
| sleep(NET_ERROR_SLEEP_SEC); |
| continue; |
| } |
| } |
| log("isMobileOk: X loops|timed out result=" + result); |
| return result; |
| } catch (Exception e) { |
| log("isMobileOk: Exception e=" + e); |
| continue; |
| } |
| } |
| log("isMobileOk: timed out"); |
| } finally { |
| log("isMobileOk: F stop hipri"); |
| mCs.setEnableFailFastMobileData(DctConstants.DISABLED); |
| mCs.stopUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, |
| Phone.FEATURE_ENABLE_HIPRI); |
| |
| // Wait for hipri to disconnect. |
| long endTime = SystemClock.elapsedRealtime() + 5000; |
| |
| while(SystemClock.elapsedRealtime() < endTime) { |
| NetworkInfo.State state = mCs |
| .getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI).getState(); |
| if (state != NetworkInfo.State.DISCONNECTED) { |
| if (VDBG) { |
| log("isMobileOk: connected ni=" + |
| mCs.getNetworkInfo(ConnectivityManager.TYPE_MOBILE_HIPRI)); |
| } |
| sleep(POLLING_SLEEP_SEC); |
| continue; |
| } |
| } |
| |
| log("isMobileOk: X result=" + result); |
| } |
| return result; |
| } |
| |
| @Override |
| protected Integer doInBackground(Params... params) { |
| return isMobileOk(params[0]); |
| } |
| |
| @Override |
| protected void onPostExecute(Integer result) { |
| log("onPostExecute: result=" + result); |
| if ((mParams != null) && (mParams.mCb != null)) { |
| mParams.mCb.onComplete(result); |
| } |
| } |
| |
| private String inetAddressesToString(InetAddress[] addresses) { |
| StringBuffer sb = new StringBuffer(); |
| boolean firstTime = true; |
| for(InetAddress addr : addresses) { |
| if (firstTime) { |
| firstTime = false; |
| } else { |
| sb.append(","); |
| } |
| sb.append(addr); |
| } |
| return sb.toString(); |
| } |
| |
| private void printNetworkInfo() { |
| boolean hasIccCard = mTm.hasIccCard(); |
| int simState = mTm.getSimState(); |
| log("hasIccCard=" + hasIccCard |
| + " simState=" + simState); |
| NetworkInfo[] ni = mCs.getAllNetworkInfo(); |
| if (ni != null) { |
| log("ni.length=" + ni.length); |
| for (NetworkInfo netInfo: ni) { |
| log("netInfo=" + netInfo.toString()); |
| } |
| } else { |
| log("no network info ni=null"); |
| } |
| } |
| |
| /** |
| * Sleep for a few seconds then return. |
| * @param seconds |
| */ |
| private static void sleep(int seconds) { |
| try { |
| Thread.sleep(seconds * 1000); |
| } catch (InterruptedException e) { |
| e.printStackTrace(); |
| } |
| } |
| |
| private static void log(String s) { |
| Slog.d(ConnectivityService.TAG, "[" + CHECKMP_TAG + "] " + s); |
| } |
| } |
| |
| // TODO: Move to ConnectivityManager and make public? |
| private static final String CONNECTED_TO_PROVISIONING_NETWORK_ACTION = |
| "com.android.server.connectivityservice.CONNECTED_TO_PROVISIONING_NETWORK_ACTION"; |
| |
| private BroadcastReceiver mProvisioningReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (intent.getAction().equals(CONNECTED_TO_PROVISIONING_NETWORK_ACTION)) { |
| handleMobileProvisioningAction(intent.getStringExtra("EXTRA_URL")); |
| } |
| } |
| }; |
| |
| private void handleMobileProvisioningAction(String url) { |
| // Mark notification as not visible |
| setProvNotificationVisible(false, ConnectivityManager.TYPE_MOBILE_HIPRI, null, null); |
| |
| // Check airplane mode |
| boolean isAirplaneModeOn = Settings.System.getInt(mContext.getContentResolver(), |
| Settings.Global.AIRPLANE_MODE_ON, 0) == 1; |
| // If provisioning network and not in airplane mode handle as a special case, |
| // otherwise launch browser with the intent directly. |
| if (mIsProvisioningNetwork.get() && !isAirplaneModeOn) { |
| if (DBG) log("handleMobileProvisioningAction: on prov network enable then launch"); |
| mIsProvisioningNetwork.set(false); |
| mIsStartingProvisioning.set(true); |
| MobileDataStateTracker mdst = (MobileDataStateTracker) |
| mNetTrackers[ConnectivityManager.TYPE_MOBILE]; |
| // Radio was disabled on CMP_RESULT_CODE_PROVISIONING_NETWORK, enable it here |
| mdst.setRadio(true); |
| mdst.setEnableFailFastMobileData(DctConstants.ENABLED); |
| mdst.enableMobileProvisioning(url); |
| } else { |
| if (DBG) log("handleMobileProvisioningAction: not prov network, launch browser directly"); |
| mIsProvisioningNetwork.set(false); |
| Intent newIntent = Intent.makeMainSelectorActivity(Intent.ACTION_MAIN, |
| Intent.CATEGORY_APP_BROWSER); |
| newIntent.setData(Uri.parse(url)); |
| newIntent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | |
| Intent.FLAG_ACTIVITY_NEW_TASK); |
| try { |
| mContext.startActivity(newIntent); |
| } catch (ActivityNotFoundException e) { |
| loge("handleMobileProvisioningAction: startActivity failed" + e); |
| } |
| } |
| } |
| |
| private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; |
| private volatile boolean mIsNotificationVisible = false; |
| |
| private void setProvNotificationVisible(boolean visible, int networkType, String extraInfo, |
| String url) { |
| if (DBG) { |
| log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType |
| + " extraInfo=" + extraInfo + " url=" + url); |
| } |
| |
| Resources r = Resources.getSystem(); |
| NotificationManager notificationManager = (NotificationManager) mContext |
| .getSystemService(Context.NOTIFICATION_SERVICE); |
| |
| if (visible) { |
| CharSequence title; |
| CharSequence details; |
| int icon; |
| Intent intent; |
| Notification notification = new Notification(); |
| switch (networkType) { |
| case ConnectivityManager.TYPE_WIFI: |
| title = r.getString(R.string.wifi_available_sign_in, 0); |
| details = r.getString(R.string.network_available_sign_in_detailed, |
| extraInfo); |
| icon = R.drawable.stat_notify_wifi_in_range; |
| intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); |
| intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | |
| Intent.FLAG_ACTIVITY_NEW_TASK); |
| notification.contentIntent = PendingIntent.getActivity(mContext, 0, intent, 0); |
| break; |
| case ConnectivityManager.TYPE_MOBILE: |
| case ConnectivityManager.TYPE_MOBILE_HIPRI: |
| title = r.getString(R.string.network_available_sign_in, 0); |
| // TODO: Change this to pull from NetworkInfo once a printable |
| // name has been added to it |
| details = mTelephonyManager.getNetworkOperatorName(); |
| icon = R.drawable.stat_notify_rssi_in_range; |
| intent = new Intent(CONNECTED_TO_PROVISIONING_NETWORK_ACTION); |
| intent.putExtra("EXTRA_URL", url); |
| intent.setFlags(0); |
| notification.contentIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); |
| break; |
| default: |
| title = r.getString(R.string.network_available_sign_in, 0); |
| details = r.getString(R.string.network_available_sign_in_detailed, |
| extraInfo); |
| icon = R.drawable.stat_notify_rssi_in_range; |
| intent = new Intent(Intent.ACTION_VIEW, Uri.parse(url)); |
| intent.setFlags(Intent.FLAG_ACTIVITY_BROUGHT_TO_FRONT | |
| Intent.FLAG_ACTIVITY_NEW_TASK); |
| notification.contentIntent = PendingIntent.getActivity(mContext, 0, intent, 0); |
| break; |
| } |
| |
| notification.when = 0; |
| notification.icon = icon; |
| notification.flags = Notification.FLAG_AUTO_CANCEL; |
| notification.tickerText = title; |
| notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); |
| |
| try { |
| notificationManager.notify(NOTIFICATION_ID, networkType, notification); |
| } catch (NullPointerException npe) { |
| loge("setNotificaitionVisible: visible notificationManager npe=" + npe); |
| npe.printStackTrace(); |
| } |
| } else { |
| try { |
| notificationManager.cancel(NOTIFICATION_ID, networkType); |
| } catch (NullPointerException npe) { |
| loge("setNotificaitionVisible: cancel notificationManager npe=" + npe); |
| npe.printStackTrace(); |
| } |
| } |
| mIsNotificationVisible = visible; |
| } |
| |
| /** Location to an updatable file listing carrier provisioning urls. |
| * An example: |
| * |
| * <?xml version="1.0" encoding="utf-8"?> |
| * <provisioningUrls> |
| * <provisioningUrl mcc="310" mnc="4">http://myserver.com/foo?mdn=%3$s&iccid=%1$s&imei=%2$s</provisioningUrl> |
| * <redirectedUrl mcc="310" mnc="4">http://www.google.com</redirectedUrl> |
| * </provisioningUrls> |
| */ |
| private static final String PROVISIONING_URL_PATH = |
| "/data/misc/radio/provisioning_urls.xml"; |
| private final File mProvisioningUrlFile = new File(PROVISIONING_URL_PATH); |
| |
| /** XML tag for root element. */ |
| private static final String TAG_PROVISIONING_URLS = "provisioningUrls"; |
| /** XML tag for individual url */ |
| private static final String TAG_PROVISIONING_URL = "provisioningUrl"; |
| /** XML tag for redirected url */ |
| private static final String TAG_REDIRECTED_URL = "redirectedUrl"; |
| /** XML attribute for mcc */ |
| private static final String ATTR_MCC = "mcc"; |
| /** XML attribute for mnc */ |
| private static final String ATTR_MNC = "mnc"; |
| |
| private static final int REDIRECTED_PROVISIONING = 1; |
| private static final int PROVISIONING = 2; |
| |
| private String getProvisioningUrlBaseFromFile(int type) { |
| FileReader fileReader = null; |
| XmlPullParser parser = null; |
| Configuration config = mContext.getResources().getConfiguration(); |
| String tagType; |
| |
| switch (type) { |
| case PROVISIONING: |
| tagType = TAG_PROVISIONING_URL; |
| break; |
| case REDIRECTED_PROVISIONING: |
| tagType = TAG_REDIRECTED_URL; |
| break; |
| default: |
| throw new RuntimeException("getProvisioningUrlBaseFromFile: Unexpected parameter " + |
| type); |
| } |
| |
| try { |
| fileReader = new FileReader(mProvisioningUrlFile); |
| parser = Xml.newPullParser(); |
| parser.setInput(fileReader); |
| XmlUtils.beginDocument(parser, TAG_PROVISIONING_URLS); |
| |
| while (true) { |
| XmlUtils.nextElement(parser); |
| |
| String element = parser.getName(); |
| if (element == null) break; |
| |
| if (element.equals(tagType)) { |
| String mcc = parser.getAttributeValue(null, ATTR_MCC); |
| try { |
| if (mcc != null && Integer.parseInt(mcc) == config.mcc) { |
| String mnc = parser.getAttributeValue(null, ATTR_MNC); |
| if (mnc != null && Integer.parseInt(mnc) == config.mnc) { |
| parser.next(); |
| if (parser.getEventType() == XmlPullParser.TEXT) { |
| return parser.getText(); |
| } |
| } |
| } |
| } catch (NumberFormatException e) { |
| loge("NumberFormatException in getProvisioningUrlBaseFromFile: " + e); |
| } |
| } |
| } |
| return null; |
| } catch (FileNotFoundException e) { |
| loge("Carrier Provisioning Urls file not found"); |
| } catch (XmlPullParserException e) { |
| loge("Xml parser exception reading Carrier Provisioning Urls file: " + e); |
| } catch (IOException e) { |
| loge("I/O exception reading Carrier Provisioning Urls file: " + e); |
| } finally { |
| if (fileReader != null) { |
| try { |
| fileReader.close(); |
| } catch (IOException e) {} |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public String getMobileRedirectedProvisioningUrl() { |
| enforceConnectivityInternalPermission(); |
| String url = getProvisioningUrlBaseFromFile(REDIRECTED_PROVISIONING); |
| if (TextUtils.isEmpty(url)) { |
| url = mContext.getResources().getString(R.string.mobile_redirected_provisioning_url); |
| } |
| return url; |
| } |
| |
| @Override |
| public String getMobileProvisioningUrl() { |
| enforceConnectivityInternalPermission(); |
| String url = getProvisioningUrlBaseFromFile(PROVISIONING); |
| if (TextUtils.isEmpty(url)) { |
| url = mContext.getResources().getString(R.string.mobile_provisioning_url); |
| log("getMobileProvisioningUrl: mobile_provisioining_url from resource =" + url); |
| } else { |
| log("getMobileProvisioningUrl: mobile_provisioning_url from File =" + url); |
| } |
| // populate the iccid, imei and phone number in the provisioning url. |
| if (!TextUtils.isEmpty(url)) { |
| String phoneNumber = mTelephonyManager.getLine1Number(); |
| if (TextUtils.isEmpty(phoneNumber)) { |
| phoneNumber = "0000000000"; |
| } |
| url = String.format(url, |
| mTelephonyManager.getSimSerialNumber() /* ICCID */, |
| mTelephonyManager.getDeviceId() /* IMEI */, |
| phoneNumber /* Phone numer */); |
| } |
| |
| return url; |
| } |
| |
| @Override |
| public void setProvisioningNotificationVisible(boolean visible, int networkType, |
| String extraInfo, String url) { |
| enforceConnectivityInternalPermission(); |
| setProvNotificationVisible(visible, networkType, extraInfo, url); |
| } |
| |
| @Override |
| public void setAirplaneMode(boolean enable) { |
| enforceConnectivityInternalPermission(); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| final ContentResolver cr = mContext.getContentResolver(); |
| Settings.Global.putInt(cr, Settings.Global.AIRPLANE_MODE_ON, enable ? 1 : 0); |
| Intent intent = new Intent(Intent.ACTION_AIRPLANE_MODE_CHANGED); |
| intent.putExtra("state", enable); |
| mContext.sendBroadcast(intent); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| private void onUserStart(int userId) { |
| synchronized(mVpns) { |
| Vpn userVpn = mVpns.get(userId); |
| if (userVpn != null) { |
| loge("Starting user already has a VPN"); |
| return; |
| } |
| userVpn = new Vpn(mContext, mVpnCallback, mNetd, this, userId); |
| mVpns.put(userId, userVpn); |
| userVpn.startMonitoring(mContext, mTrackerHandler); |
| } |
| } |
| |
| private void onUserStop(int userId) { |
| synchronized(mVpns) { |
| Vpn userVpn = mVpns.get(userId); |
| if (userVpn == null) { |
| loge("Stopping user has no VPN"); |
| return; |
| } |
| mVpns.delete(userId); |
| } |
| } |
| |
| private BroadcastReceiver mUserIntentReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| final String action = intent.getAction(); |
| final int userId = intent.getIntExtra(Intent.EXTRA_USER_HANDLE, UserHandle.USER_NULL); |
| if (userId == UserHandle.USER_NULL) return; |
| |
| if (Intent.ACTION_USER_STARTING.equals(action)) { |
| onUserStart(userId); |
| } else if (Intent.ACTION_USER_STOPPING.equals(action)) { |
| onUserStop(userId); |
| } |
| } |
| }; |
| |
| @Override |
| public LinkQualityInfo getLinkQualityInfo(int networkType) { |
| enforceAccessPermission(); |
| if (isNetworkTypeValid(networkType)) { |
| return mNetTrackers[networkType].getLinkQualityInfo(); |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| public LinkQualityInfo getActiveLinkQualityInfo() { |
| enforceAccessPermission(); |
| if (isNetworkTypeValid(mActiveDefaultNetwork)) { |
| return mNetTrackers[mActiveDefaultNetwork].getLinkQualityInfo(); |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| public LinkQualityInfo[] getAllLinkQualityInfo() { |
| enforceAccessPermission(); |
| final ArrayList<LinkQualityInfo> result = Lists.newArrayList(); |
| for (NetworkStateTracker tracker : mNetTrackers) { |
| if (tracker != null) { |
| LinkQualityInfo li = tracker.getLinkQualityInfo(); |
| if (li != null) { |
| result.add(li); |
| } |
| } |
| } |
| |
| return result.toArray(new LinkQualityInfo[result.size()]); |
| } |
| |
| /* Infrastructure for network sampling */ |
| |
| private void handleNetworkSamplingTimeout() { |
| |
| log("Sampling interval elapsed, updating statistics .."); |
| |
| // initialize list of interfaces .. |
| Map<String, SamplingDataTracker.SamplingSnapshot> mapIfaceToSample = |
| new HashMap<String, SamplingDataTracker.SamplingSnapshot>(); |
| for (NetworkStateTracker tracker : mNetTrackers) { |
| if (tracker != null) { |
| String ifaceName = tracker.getNetworkInterfaceName(); |
| if (ifaceName != null) { |
| mapIfaceToSample.put(ifaceName, null); |
| } |
| } |
| } |
| |
| // Read samples for all interfaces |
| SamplingDataTracker.getSamplingSnapshots(mapIfaceToSample); |
| |
| // process samples for all networks |
| for (NetworkStateTracker tracker : mNetTrackers) { |
| if (tracker != null) { |
| String ifaceName = tracker.getNetworkInterfaceName(); |
| SamplingDataTracker.SamplingSnapshot ss = mapIfaceToSample.get(ifaceName); |
| if (ss != null) { |
| // end the previous sampling cycle |
| tracker.stopSampling(ss); |
| // start a new sampling cycle .. |
| tracker.startSampling(ss); |
| } |
| } |
| } |
| |
| log("Done."); |
| |
| int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, |
| DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); |
| |
| if (DBG) log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); |
| |
| setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); |
| } |
| |
| void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { |
| long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; |
| mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, wakeupTime, intent); |
| } |
| } |