| /* |
| * 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_MOBILE; |
| import static android.net.ConnectivityManager.TYPE_MOBILE_MMS; |
| import static android.net.ConnectivityManager.TYPE_MOBILE_SUPL; |
| import static android.net.ConnectivityManager.TYPE_MOBILE_DUN; |
| import static android.net.ConnectivityManager.TYPE_MOBILE_FOTA; |
| import static android.net.ConnectivityManager.TYPE_MOBILE_IMS; |
| import static android.net.ConnectivityManager.TYPE_MOBILE_CBS; |
| import static android.net.ConnectivityManager.TYPE_MOBILE_IA; |
| import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI; |
| import static android.net.ConnectivityManager.TYPE_NONE; |
| import static android.net.ConnectivityManager.TYPE_WIFI; |
| import static android.net.ConnectivityManager.TYPE_WIMAX; |
| import static android.net.ConnectivityManager.TYPE_PROXY; |
| 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.Notification; |
| import android.app.NotificationManager; |
| import android.app.PendingIntent; |
| 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.PackageManager; |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| import android.database.ContentObserver; |
| import android.net.ConnectivityManager; |
| 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.Network; |
| import android.net.NetworkAgent; |
| import android.net.NetworkCapabilities; |
| import android.net.NetworkConfig; |
| import android.net.NetworkInfo; |
| import android.net.NetworkInfo.DetailedState; |
| import android.net.NetworkFactory; |
| import android.net.NetworkMisc; |
| import android.net.NetworkQuotaInfo; |
| import android.net.NetworkRequest; |
| import android.net.NetworkState; |
| import android.net.NetworkStateTracker; |
| import android.net.NetworkUtils; |
| import android.net.Proxy; |
| import android.net.ProxyDataTracker; |
| import android.net.ProxyInfo; |
| import android.net.RouteInfo; |
| import android.net.SamplingDataTracker; |
| import android.net.UidRange; |
| import android.net.Uri; |
| import android.net.wimax.WimaxManagerConstants; |
| import android.os.AsyncTask; |
| import android.os.Binder; |
| import android.os.Build; |
| import android.os.Bundle; |
| 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.os.UserManager; |
| 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.app.IBatteryStats; |
| import com.android.internal.net.LegacyVpnInfo; |
| import com.android.internal.net.NetworkStatsFactory; |
| 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.telephony.TelephonyIntents; |
| import com.android.internal.util.AsyncChannel; |
| 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.NetworkAgentInfo; |
| import com.android.server.connectivity.NetworkMonitor; |
| import com.android.server.connectivity.PacManager; |
| import com.android.server.connectivity.PermissionMonitor; |
| 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.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.Objects; |
| 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; |
| |
| // network sampling debugging |
| private static final boolean SAMPLE_DBG = 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 = (SAMPLE_DBG ? 30 : 12 * 60); |
| |
| // start network sampling a minute after booting ... |
| private static final int DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS = (SAMPLE_DBG ? 30 : 60); |
| |
| AlarmManager mAlarmManager; |
| |
| private Tethering mTethering; |
| |
| private final PermissionMonitor mPermissionMonitor; |
| |
| private KeyStore mKeyStore; |
| |
| @GuardedBy("mVpns") |
| private final SparseArray<Vpn> mVpns = new SparseArray<Vpn>(); |
| |
| 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[]; |
| |
| private Context mContext; |
| private int mNetworkPreference; |
| private int mActiveDefaultNetwork = TYPE_NONE; |
| // 0 is full bad, 100 is full good |
| private int mDefaultInetConditionPublished = 0; |
| |
| private Object mDnsLock = new Object(); |
| private int mNumDnsEntries; |
| |
| private boolean mTestMode; |
| private static ConnectivityService sServiceInstance; |
| |
| private INetworkManagementService mNetd; |
| private INetworkPolicyManager mPolicyManager; |
| |
| private String mCurrentTcpBufferSizes; |
| |
| private static final int ENABLED = 1; |
| private static final int DISABLED = 0; |
| |
| /** |
| * used internally to change our mobile data enabled flag |
| */ |
| private static final int EVENT_CHANGE_MOBILE_DATA_ENABLED = 2; |
| |
| /** |
| * used internally to clear a wakelock when transitioning |
| * from one net to another. Clear happens when we get a new |
| * network - EVENT_EXPIRE_NET_TRANSITION_WAKELOCK happens |
| * after a timeout if no network is found (typically 1 min). |
| */ |
| 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; |
| |
| /** |
| * Used internally to disable fail fast of mobile data |
| */ |
| private static final int EVENT_ENABLE_FAIL_FAST_MOBILE_DATA = 14; |
| |
| /** |
| * used 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; |
| |
| /** |
| * used internally when registering NetworkFactories |
| * obj = NetworkFactoryInfo |
| */ |
| private static final int EVENT_REGISTER_NETWORK_FACTORY = 17; |
| |
| /** |
| * used internally when registering NetworkAgents |
| * obj = Messenger |
| */ |
| private static final int EVENT_REGISTER_NETWORK_AGENT = 18; |
| |
| /** |
| * used to add a network request |
| * includes a NetworkRequestInfo |
| */ |
| private static final int EVENT_REGISTER_NETWORK_REQUEST = 19; |
| |
| /** |
| * indicates a timeout period is over - check if we had a network yet or not |
| * and if not, call the timeout calback (but leave the request live until they |
| * cancel it. |
| * includes a NetworkRequestInfo |
| */ |
| private static final int EVENT_TIMEOUT_NETWORK_REQUEST = 20; |
| |
| /** |
| * used to add a network listener - no request |
| * includes a NetworkRequestInfo |
| */ |
| private static final int EVENT_REGISTER_NETWORK_LISTENER = 21; |
| |
| /** |
| * used to remove a network request, either a listener or a real request |
| * arg1 = UID of caller |
| * obj = NetworkRequest |
| */ |
| private static final int EVENT_RELEASE_NETWORK_REQUEST = 22; |
| |
| /** |
| * used internally when registering NetworkFactories |
| * obj = Messenger |
| */ |
| private static final int EVENT_UNREGISTER_NETWORK_FACTORY = 23; |
| |
| /** |
| * used internally to expire a wakelock when transitioning |
| * from one net to another. Expire happens when we fail to find |
| * a new network (typically after 1 minute) - |
| * EVENT_CLEAR_NET_TRANSITION_WAKELOCK happens if we had found |
| * a replacement network. |
| */ |
| private static final int EVENT_EXPIRE_NET_TRANSITION_WAKELOCK = 24; |
| |
| /** |
| * Used internally to indicate the system is ready. |
| */ |
| private static final int EVENT_SYSTEM_READY = 25; |
| |
| |
| /** Handler used for internal events. */ |
| final private InternalHandler mHandler; |
| /** Handler used for incoming {@link NetworkStateTracker} events. */ |
| final private NetworkStateTrackerHandler mTrackerHandler; |
| |
| private boolean mSystemReady; |
| private Intent mInitialBroadcast; |
| |
| private PowerManager.WakeLock mNetTransitionWakeLock; |
| private String mNetTransitionWakeLockCausedBy = ""; |
| private int mNetTransitionWakeLockSerialNumber; |
| private int mNetTransitionWakeLockTimeout; |
| |
| private InetAddress mDefaultDns; |
| |
| // 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 volatile ProxyInfo mDefaultProxy = null; |
| private Object mProxyLock = new Object(); |
| private boolean mDefaultProxyDisabled = false; |
| |
| // track the global proxy. |
| private ProxyInfo mGlobalProxy = null; |
| |
| private PacManager mPacManager = null; |
| |
| private SettingsObserver mSettingsObserver; |
| |
| private UserManager mUserManager; |
| |
| NetworkConfig[] mNetConfigs; |
| int mNetworksDefined; |
| |
| // 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; |
| |
| // sequence number for Networks; keep in sync with system/netd/NetworkController.cpp |
| private final static int MIN_NET_ID = 100; // some reserved marks |
| private final static int MAX_NET_ID = 65535; |
| private int mNextNetId = MIN_NET_ID; |
| |
| // sequence number of NetworkRequests |
| private int mNextNetworkRequestId = 1; |
| |
| /** |
| * Implements support for the legacy "one network per network type" model. |
| * |
| * We used to have a static array of NetworkStateTrackers, one for each |
| * network type, but that doesn't work any more now that we can have, |
| * for example, more that one wifi network. This class stores all the |
| * NetworkAgentInfo objects that support a given type, but the legacy |
| * API will only see the first one. |
| * |
| * It serves two main purposes: |
| * |
| * 1. Provide information about "the network for a given type" (since this |
| * API only supports one). |
| * 2. Send legacy connectivity change broadcasts. Broadcasts are sent if |
| * the first network for a given type changes, or if the default network |
| * changes. |
| */ |
| private class LegacyTypeTracker { |
| |
| private static final boolean DBG = true; |
| private static final boolean VDBG = false; |
| private static final String TAG = "CSLegacyTypeTracker"; |
| |
| /** |
| * Array of lists, one per legacy network type (e.g., TYPE_MOBILE_MMS). |
| * Each list holds references to all NetworkAgentInfos that are used to |
| * satisfy requests for that network type. |
| * |
| * This array is built out at startup such that an unsupported network |
| * doesn't get an ArrayList instance, making this a tristate: |
| * unsupported, supported but not active and active. |
| * |
| * The actual lists are populated when we scan the network types that |
| * are supported on this device. |
| */ |
| private ArrayList<NetworkAgentInfo> mTypeLists[]; |
| |
| public LegacyTypeTracker() { |
| mTypeLists = (ArrayList<NetworkAgentInfo>[]) |
| new ArrayList[ConnectivityManager.MAX_NETWORK_TYPE + 1]; |
| } |
| |
| public void addSupportedType(int type) { |
| if (mTypeLists[type] != null) { |
| throw new IllegalStateException( |
| "legacy list for type " + type + "already initialized"); |
| } |
| mTypeLists[type] = new ArrayList<NetworkAgentInfo>(); |
| } |
| |
| public boolean isTypeSupported(int type) { |
| return isNetworkTypeValid(type) && mTypeLists[type] != null; |
| } |
| |
| public NetworkAgentInfo getNetworkForType(int type) { |
| if (isTypeSupported(type) && !mTypeLists[type].isEmpty()) { |
| return mTypeLists[type].get(0); |
| } else { |
| return null; |
| } |
| } |
| |
| private void maybeLogBroadcast(NetworkAgentInfo nai, boolean connected, int type) { |
| if (DBG) { |
| log("Sending " + (connected ? "connected" : "disconnected") + |
| " broadcast for type " + type + " " + nai.name() + |
| " isDefaultNetwork=" + isDefaultNetwork(nai)); |
| } |
| } |
| |
| /** Adds the given network to the specified legacy type list. */ |
| public void add(int type, NetworkAgentInfo nai) { |
| if (!isTypeSupported(type)) { |
| return; // Invalid network type. |
| } |
| if (VDBG) log("Adding agent " + nai + " for legacy network type " + type); |
| |
| ArrayList<NetworkAgentInfo> list = mTypeLists[type]; |
| if (list.contains(nai)) { |
| loge("Attempting to register duplicate agent for type " + type + ": " + nai); |
| return; |
| } |
| |
| list.add(nai); |
| |
| // Send a broadcast if this is the first network of its type or if it's the default. |
| if (list.size() == 1 || isDefaultNetwork(nai)) { |
| maybeLogBroadcast(nai, true, type); |
| sendLegacyNetworkBroadcast(nai, true, type); |
| } |
| } |
| |
| /** Removes the given network from the specified legacy type list. */ |
| public void remove(int type, NetworkAgentInfo nai) { |
| ArrayList<NetworkAgentInfo> list = mTypeLists[type]; |
| if (list == null || list.isEmpty()) { |
| return; |
| } |
| |
| boolean wasFirstNetwork = list.get(0).equals(nai); |
| |
| if (!list.remove(nai)) { |
| return; |
| } |
| |
| if (wasFirstNetwork || isDefaultNetwork(nai)) { |
| maybeLogBroadcast(nai, false, type); |
| sendLegacyNetworkBroadcast(nai, false, type); |
| } |
| |
| if (!list.isEmpty() && wasFirstNetwork) { |
| if (DBG) log("Other network available for type " + type + |
| ", sending connected broadcast"); |
| maybeLogBroadcast(list.get(0), false, type); |
| sendLegacyNetworkBroadcast(list.get(0), false, type); |
| } |
| } |
| |
| /** Removes the given network from all legacy type lists. */ |
| public void remove(NetworkAgentInfo nai) { |
| if (VDBG) log("Removing agent " + nai); |
| for (int type = 0; type < mTypeLists.length; type++) { |
| remove(type, nai); |
| } |
| } |
| |
| private String naiToString(NetworkAgentInfo nai) { |
| String name = (nai != null) ? nai.name() : "null"; |
| String state = (nai.networkInfo != null) ? |
| nai.networkInfo.getState() + "/" + nai.networkInfo.getDetailedState() : |
| "???/???"; |
| return name + " " + state; |
| } |
| |
| public void dump(IndentingPrintWriter pw) { |
| for (int type = 0; type < mTypeLists.length; type++) { |
| if (mTypeLists[type] == null) continue; |
| pw.print(type + " "); |
| pw.increaseIndent(); |
| if (mTypeLists[type].size() == 0) pw.println("none"); |
| for (NetworkAgentInfo nai : mTypeLists[type]) { |
| pw.println(naiToString(nai)); |
| } |
| pw.decreaseIndent(); |
| } |
| } |
| |
| // This class needs its own log method because it has a different TAG. |
| private void log(String s) { |
| Slog.d(TAG, s); |
| } |
| |
| } |
| private LegacyTypeTracker mLegacyTypeTracker = new LegacyTypeTracker(); |
| |
| public ConnectivityService(Context context, INetworkManagementService netManager, |
| INetworkStatsService statsService, INetworkPolicyManager policyManager) { |
| if (DBG) log("ConnectivityService starting up"); |
| |
| NetworkCapabilities netCap = new NetworkCapabilities(); |
| netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); |
| netCap.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED); |
| mDefaultRequest = new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId()); |
| NetworkRequestInfo nri = new NetworkRequestInfo(null, mDefaultRequest, new Binder(), |
| NetworkRequestInfo.REQUEST); |
| mNetworkRequests.put(mDefaultRequest, nri); |
| |
| HandlerThread handlerThread = new HandlerThread("ConnectivityServiceThread"); |
| handlerThread.start(); |
| mHandler = new InternalHandler(handlerThread.getLooper()); |
| mTrackerHandler = new NetworkStateTrackerHandler(handlerThread.getLooper()); |
| |
| // 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]; |
| |
| mNetConfigs = new NetworkConfig[ConnectivityManager.MAX_NETWORK_TYPE+1]; |
| |
| // 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; |
| } |
| mLegacyTypeTracker.addSupportedType(n.type); |
| |
| 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); |
| } |
| } |
| |
| mTestMode = SystemProperties.get("cm.test.mode").equals("true") |
| && SystemProperties.get("ro.build.type").equals("eng"); |
| |
| mTethering = new Tethering(mContext, mNetd, statsService, mHandler.getLooper()); |
| |
| mPermissionMonitor = new PermissionMonitor(mContext, mNetd); |
| |
| //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(); |
| |
| mAlarmManager = (AlarmManager)mContext.getSystemService(Context.ALARM_SERVICE); |
| |
| 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); |
| |
| mUserManager = (UserManager) context.getSystemService(Context.USER_SERVICE); |
| } |
| |
| private synchronized int nextNetworkRequestId() { |
| return mNextNetworkRequestId++; |
| } |
| |
| private void assignNextNetId(NetworkAgentInfo nai) { |
| synchronized (mNetworkForNetId) { |
| for (int i = MIN_NET_ID; i <= MAX_NET_ID; i++) { |
| int netId = mNextNetId; |
| if (++mNextNetId > MAX_NET_ID) mNextNetId = MIN_NET_ID; |
| // Make sure NetID unused. http://b/16815182 |
| if (mNetworkForNetId.get(netId) == null) { |
| nai.network = new Network(netId); |
| mNetworkForNetId.put(netId, nai); |
| return; |
| } |
| } |
| } |
| throw new IllegalStateException("No free netIds"); |
| } |
| |
| 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 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 networkType. |
| * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. |
| */ |
| private boolean isNetworkBlocked(int networkType, int uid) { |
| return isNetworkWithLinkPropertiesBlocked(getLinkPropertiesForType(networkType), uid); |
| } |
| |
| /** |
| * Check if UID should be blocked from using the network represented by the given |
| * NetworkAgentInfo. |
| */ |
| private boolean isNetworkBlocked(NetworkAgentInfo nai, int uid) { |
| return isNetworkWithLinkPropertiesBlocked(nai.linkProperties, uid); |
| } |
| |
| /** |
| * Check if UID should be blocked from using the network with the given LinkProperties. |
| */ |
| private boolean isNetworkWithLinkPropertiesBlocked(LinkProperties lp, int uid) { |
| final boolean networkCostly; |
| final int uidRules; |
| |
| final String iface = (lp == null ? "" : lp.getInterfaceName()); |
| 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}. |
| * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. |
| */ |
| private NetworkInfo getFilteredNetworkInfo(int networkType, int uid) { |
| NetworkInfo info = getNetworkInfoForType(networkType); |
| return getFilteredNetworkInfo(info, networkType, uid); |
| } |
| |
| /* |
| * @deprecated Uses mLegacyTypeTracker; cannot deal with multiple Networks of the same type. |
| */ |
| private NetworkInfo getFilteredNetworkInfo(NetworkInfo info, int networkType, int uid) { |
| if (isNetworkBlocked(networkType, uid)) { |
| // network is blocked; clone and override state |
| info = new NetworkInfo(info); |
| info.setDetailedState(DetailedState.BLOCKED, null, null); |
| if (VDBG) log("returning Blocked NetworkInfo"); |
| } |
| if (mLockdownTracker != null) { |
| info = mLockdownTracker.augmentNetworkInfo(info); |
| if (VDBG) log("returning Locked NetworkInfo"); |
| } |
| return info; |
| } |
| |
| private NetworkInfo getFilteredNetworkInfo(NetworkAgentInfo nai, int uid) { |
| NetworkInfo info = nai.networkInfo; |
| if (isNetworkBlocked(nai, uid)) { |
| // network is blocked; clone and override state |
| info = new NetworkInfo(info); |
| info.setDetailedState(DetailedState.BLOCKED, null, null); |
| if (DBG) log("returning Blocked NetworkInfo"); |
| } |
| if (mLockdownTracker != null) { |
| info = mLockdownTracker.augmentNetworkInfo(info); |
| if (DBG) log("returning Locked NetworkInfo"); |
| } |
| 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)) { |
| return getNetworkInfoForType(mActiveDefaultNetwork); |
| } |
| 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)) { |
| if (getNetworkInfoForType(networkType) != null) { |
| info = getFilteredNetworkInfo(networkType, uid); |
| } |
| } |
| return info; |
| } |
| |
| @Override |
| public NetworkInfo getNetworkInfoForNetwork(Network network) { |
| enforceAccessPermission(); |
| if (network == null) return null; |
| |
| final int uid = Binder.getCallingUid(); |
| NetworkAgentInfo nai = null; |
| synchronized (mNetworkForNetId) { |
| nai = mNetworkForNetId.get(network.netId); |
| } |
| if (nai == null) return null; |
| synchronized (nai) { |
| if (nai.networkInfo == null) return null; |
| |
| return getFilteredNetworkInfo(nai, uid); |
| } |
| } |
| |
| @Override |
| public NetworkInfo[] getAllNetworkInfo() { |
| enforceAccessPermission(); |
| final int uid = Binder.getCallingUid(); |
| final ArrayList<NetworkInfo> result = Lists.newArrayList(); |
| for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; |
| networkType++) { |
| if (getNetworkInfoForType(networkType) != null) { |
| result.add(getFilteredNetworkInfo(networkType, uid)); |
| } |
| } |
| return result.toArray(new NetworkInfo[result.size()]); |
| } |
| |
| @Override |
| public Network getNetworkForType(int networkType) { |
| enforceAccessPermission(); |
| final int uid = Binder.getCallingUid(); |
| if (isNetworkBlocked(networkType, uid)) { |
| return null; |
| } |
| NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); |
| return (nai == null) ? null : nai.network; |
| } |
| |
| @Override |
| public Network[] getAllNetworks() { |
| enforceAccessPermission(); |
| final ArrayList<Network> result = new ArrayList(); |
| synchronized (mNetworkForNetId) { |
| for (int i = 0; i < mNetworkForNetId.size(); i++) { |
| result.add(new Network(mNetworkForNetId.valueAt(i).network)); |
| } |
| } |
| return result.toArray(new Network[result.size()]); |
| } |
| |
| @Override |
| public boolean isNetworkSupported(int networkType) { |
| enforceAccessPermission(); |
| return (isNetworkTypeValid(networkType) && (getNetworkInfoForType(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 getLinkPropertiesForType(mActiveDefaultNetwork); |
| } |
| |
| @Override |
| public LinkProperties getLinkPropertiesForType(int networkType) { |
| enforceAccessPermission(); |
| if (isNetworkTypeValid(networkType)) { |
| return getLinkPropertiesForTypeInternal(networkType); |
| } |
| return null; |
| } |
| |
| // TODO - this should be ALL networks |
| @Override |
| public LinkProperties getLinkProperties(Network network) { |
| enforceAccessPermission(); |
| NetworkAgentInfo nai = null; |
| synchronized (mNetworkForNetId) { |
| nai = mNetworkForNetId.get(network.netId); |
| } |
| |
| if (nai != null) { |
| synchronized (nai) { |
| return new LinkProperties(nai.linkProperties); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public NetworkCapabilities getNetworkCapabilities(Network network) { |
| enforceAccessPermission(); |
| NetworkAgentInfo nai = null; |
| synchronized (mNetworkForNetId) { |
| nai = mNetworkForNetId.get(network.netId); |
| } |
| if (nai != null) { |
| synchronized (nai) { |
| return new NetworkCapabilities(nai.networkCapabilities); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public NetworkState[] getAllNetworkState() { |
| enforceAccessPermission(); |
| final int uid = Binder.getCallingUid(); |
| final ArrayList<NetworkState> result = Lists.newArrayList(); |
| for (int networkType = 0; networkType <= ConnectivityManager.MAX_NETWORK_TYPE; |
| networkType++) { |
| if (getNetworkInfoForType(networkType) != null) { |
| final NetworkInfo info = getFilteredNetworkInfo(networkType, uid); |
| final LinkProperties lp = getLinkPropertiesForTypeInternal(networkType); |
| final NetworkCapabilities netcap = getNetworkCapabilitiesForType(networkType); |
| result.add(new NetworkState(info, lp, netcap)); |
| } |
| } |
| return result.toArray(new NetworkState[result.size()]); |
| } |
| |
| private NetworkState getNetworkStateUnchecked(int networkType) { |
| if (isNetworkTypeValid(networkType)) { |
| NetworkInfo info = getNetworkInfoForType(networkType); |
| if (info != null) { |
| return new NetworkState(info, |
| getLinkPropertiesForTypeInternal(networkType), |
| getNetworkCapabilitiesForType(networkType)); |
| } |
| } |
| 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; |
| } |
| |
| private INetworkManagementEventObserver mDataActivityObserver = new BaseNetworkObserver() { |
| @Override |
| public void interfaceClassDataActivityChanged(String label, boolean active, long tsNanos) { |
| int deviceType = Integer.parseInt(label); |
| sendDataActivityBroadcast(deviceType, active, tsNanos); |
| } |
| }; |
| |
| /** |
| * 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) { |
| enforceChangePermission(); |
| if (mProtectedNetworks.contains(networkType)) { |
| enforceConnectivityInternalPermission(); |
| } |
| |
| InetAddress addr; |
| try { |
| addr = InetAddress.getByAddress(hostAddress); |
| } catch (UnknownHostException e) { |
| if (DBG) log("requestRouteToHostAddress got " + e.toString()); |
| return false; |
| } |
| |
| if (!ConnectivityManager.isNetworkTypeValid(networkType)) { |
| if (DBG) log("requestRouteToHostAddress on invalid network: " + networkType); |
| return false; |
| } |
| |
| NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); |
| if (nai == null) { |
| if (mLegacyTypeTracker.isTypeSupported(networkType) == false) { |
| if (DBG) log("requestRouteToHostAddress on unsupported network: " + networkType); |
| } else { |
| if (DBG) log("requestRouteToHostAddress on down network: " + networkType); |
| } |
| return false; |
| } |
| |
| DetailedState netState; |
| synchronized (nai) { |
| netState = nai.networkInfo.getDetailedState(); |
| } |
| |
| if (netState != DetailedState.CONNECTED && netState != DetailedState.CAPTIVE_PORTAL_CHECK) { |
| if (VDBG) { |
| log("requestRouteToHostAddress on down network " |
| + "(" + networkType + ") - dropped" |
| + " netState=" + netState); |
| } |
| return false; |
| } |
| |
| final int uid = Binder.getCallingUid(); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| LinkProperties lp; |
| int netId; |
| synchronized (nai) { |
| lp = nai.linkProperties; |
| netId = nai.network.netId; |
| } |
| boolean ok = addLegacyRouteToHost(lp, addr, netId, uid); |
| if (DBG) log("requestRouteToHostAddress ok=" + ok); |
| return ok; |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| private boolean addLegacyRouteToHost(LinkProperties lp, InetAddress addr, int netId, int uid) { |
| 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); |
| } |
| } |
| if (DBG) log("Adding " + bestRoute + " for interface " + bestRoute.getInterface()); |
| try { |
| mNetd.addLegacyRouteForNetId(netId, bestRoute, uid); |
| } catch (Exception e) { |
| // never crash - catch them all |
| if (DBG) loge("Exception trying to add a route: " + e); |
| return false; |
| } |
| return true; |
| } |
| |
| 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); |
| } |
| } |
| } |
| } |
| }; |
| |
| @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) { |
| // TODO - handle this passing to factories |
| // if (isNetworkTypeValid(networkType)) { |
| // final NetworkStateTracker tracker = mNetTrackers[networkType]; |
| // if (tracker != null) { |
| // tracker.setPolicyDataEnable(enabled); |
| // } |
| // } |
| } |
| |
| private void enforceInternetPermission() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.INTERNET, |
| "ConnectivityService"); |
| } |
| |
| private void enforceAccessPermission() { |
| mContext.enforceCallingOrSelfPermission( |
| android.Manifest.permission.ACCESS_NETWORK_STATE, |
| "ConnectivityService"); |
| } |
| |
| private void enforceChangePermission() { |
| 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"); |
| } |
| |
| 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, long tsNanos) { |
| Intent intent = new Intent(ConnectivityManager.ACTION_DATA_ACTIVITY_CHANGE); |
| intent.putExtra(ConnectivityManager.EXTRA_DEVICE_TYPE, deviceType); |
| intent.putExtra(ConnectivityManager.EXTRA_IS_ACTIVE, active); |
| intent.putExtra(ConnectivityManager.EXTRA_REALTIME_NS, tsNanos); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| mContext.sendOrderedBroadcastAsUser(intent, UserHandle.ALL, |
| RECEIVE_DATA_ACTIVITY_CHANGE, null, null, 0, null, null); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| private void sendStickyBroadcast(Intent intent) { |
| synchronized(this) { |
| if (!mSystemReady) { |
| mInitialBroadcast = new Intent(intent); |
| } |
| intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); |
| if (DBG) { |
| 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() { |
| // start network sampling .. |
| Intent intent = new Intent(ACTION_PKT_CNT_SAMPLE_INTERVAL_ELAPSED); |
| intent.setPackage(mContext.getPackageName()); |
| |
| mSampleIntervalElapsedIntent = PendingIntent.getBroadcast(mContext, |
| SAMPLE_INTERVAL_ELAPSED_REQUEST_CODE, intent, 0); |
| setAlarm(DEFAULT_START_SAMPLING_INTERVAL_IN_SECONDS * 1000, mSampleIntervalElapsedIntent); |
| |
| 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); |
| } |
| |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_SYSTEM_READY)); |
| |
| mPermissionMonitor.startMonitoring(); |
| } |
| |
| 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); |
| } |
| } |
| }; |
| |
| /** @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. |
| * |
| * Every {@code setupDataActivityTracking} should be paired with a |
| * {@link #removeDataActivityTracking} for cleanup. |
| */ |
| private void setupDataActivityTracking(NetworkAgentInfo networkAgent) { |
| final String iface = networkAgent.linkProperties.getInterfaceName(); |
| |
| final int timeout; |
| int type = ConnectivityManager.TYPE_NONE; |
| |
| if (networkAgent.networkCapabilities.hasTransport( |
| NetworkCapabilities.TRANSPORT_CELLULAR)) { |
| timeout = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.DATA_ACTIVITY_TIMEOUT_MOBILE, |
| 5); |
| type = ConnectivityManager.TYPE_MOBILE; |
| } else if (networkAgent.networkCapabilities.hasTransport( |
| NetworkCapabilities.TRANSPORT_WIFI)) { |
| timeout = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.DATA_ACTIVITY_TIMEOUT_WIFI, |
| 0); |
| type = ConnectivityManager.TYPE_WIFI; |
| } else { |
| // do not track any other networks |
| timeout = 0; |
| } |
| |
| if (timeout > 0 && iface != null && type != ConnectivityManager.TYPE_NONE) { |
| try { |
| mNetd.addIdleTimer(iface, timeout, type); |
| } catch (Exception e) { |
| // You shall not crash! |
| loge("Exception in setupDataActivityTracking " + e); |
| } |
| } |
| } |
| |
| /** |
| * Remove data activity tracking when network disconnects. |
| */ |
| private void removeDataActivityTracking(NetworkAgentInfo networkAgent) { |
| final String iface = networkAgent.linkProperties.getInterfaceName(); |
| final NetworkCapabilities caps = networkAgent.networkCapabilities; |
| |
| if (iface != null && (caps.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) || |
| caps.hasTransport(NetworkCapabilities.TRANSPORT_WIFI))) { |
| try { |
| // the call fails silently if no idletimer setup for this interface |
| mNetd.removeIdleTimer(iface); |
| } catch (Exception e) { |
| loge("Exception in removeDataActivityTracking " + e); |
| } |
| } |
| } |
| |
| /** |
| * Reads the network specific MTU size from reources. |
| * and set it on it's iface. |
| */ |
| private void updateMtu(LinkProperties newLp, LinkProperties oldLp) { |
| final String iface = newLp.getInterfaceName(); |
| final int mtu = newLp.getMtu(); |
| if (oldLp != null && newLp.isIdenticalMtu(oldLp)) { |
| if (VDBG) log("identical MTU - not setting"); |
| return; |
| } |
| |
| if (LinkProperties.isValidMtu(mtu, newLp.hasGlobalIPv6Address()) == false) { |
| loge("Unexpected mtu value: " + mtu + ", " + iface); |
| return; |
| } |
| |
| // Cannot set MTU without interface name |
| if (TextUtils.isEmpty(iface)) { |
| loge("Setting MTU size with null iface."); |
| return; |
| } |
| |
| try { |
| if (DBG) log("Setting MTU size: " + iface + ", " + mtu); |
| mNetd.setMtu(iface, mtu); |
| } catch (Exception e) { |
| Slog.e(TAG, "exception in setMtu()" + e); |
| } |
| } |
| |
| private static final String DEFAULT_TCP_BUFFER_SIZES = "4096,87380,110208,4096,16384,110208"; |
| |
| private void updateTcpBufferSizes(NetworkAgentInfo nai) { |
| if (isDefaultNetwork(nai) == false) { |
| return; |
| } |
| |
| String tcpBufferSizes = nai.linkProperties.getTcpBufferSizes(); |
| String[] values = null; |
| if (tcpBufferSizes != null) { |
| values = tcpBufferSizes.split(","); |
| } |
| |
| if (values == null || values.length != 6) { |
| if (DBG) log("Invalid tcpBufferSizes string: " + tcpBufferSizes +", using defaults"); |
| tcpBufferSizes = DEFAULT_TCP_BUFFER_SIZES; |
| values = tcpBufferSizes.split(","); |
| } |
| |
| if (tcpBufferSizes.equals(mCurrentTcpBufferSizes)) return; |
| |
| try { |
| if (DBG) Slog.d(TAG, "Setting tx/rx TCP buffers to " + tcpBufferSizes); |
| |
| 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]); |
| mCurrentTcpBufferSizes = tcpBufferSizes; |
| } catch (IOException e) { |
| loge("Can't set TCP buffer sizes:" + e); |
| } |
| |
| 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()); |
| } |
| } |
| |
| 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); |
| } |
| } |
| |
| @Override |
| public 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; |
| } |
| |
| pw.println("NetworkFactories for:"); |
| pw.increaseIndent(); |
| for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { |
| pw.println(nfi.name); |
| } |
| pw.decreaseIndent(); |
| pw.println(); |
| |
| NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); |
| pw.print("Active default network: "); |
| if (defaultNai == null) { |
| pw.println("none"); |
| } else { |
| pw.println(defaultNai.network.netId); |
| } |
| pw.println(); |
| |
| pw.println("Current Networks:"); |
| pw.increaseIndent(); |
| for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { |
| pw.println(nai.toString()); |
| pw.increaseIndent(); |
| pw.println("Requests:"); |
| pw.increaseIndent(); |
| for (int i = 0; i < nai.networkRequests.size(); i++) { |
| pw.println(nai.networkRequests.valueAt(i).toString()); |
| } |
| pw.decreaseIndent(); |
| pw.println("Lingered:"); |
| pw.increaseIndent(); |
| for (NetworkRequest nr : nai.networkLingered) pw.println(nr.toString()); |
| pw.decreaseIndent(); |
| pw.decreaseIndent(); |
| } |
| pw.decreaseIndent(); |
| pw.println(); |
| |
| pw.println("Network Requests:"); |
| pw.increaseIndent(); |
| for (NetworkRequestInfo nri : mNetworkRequests.values()) { |
| pw.println(nri.toString()); |
| } |
| pw.println(); |
| pw.decreaseIndent(); |
| |
| pw.print("mActiveDefaultNetwork: " + mActiveDefaultNetwork); |
| if (mActiveDefaultNetwork != TYPE_NONE) { |
| NetworkInfo activeNetworkInfo = getActiveNetworkInfo(); |
| if (activeNetworkInfo != null) { |
| pw.print(" " + activeNetworkInfo.getState() + |
| "/" + activeNetworkInfo.getDetailedState()); |
| } |
| } |
| pw.println(); |
| |
| pw.println("mLegacyTypeTracker:"); |
| pw.increaseIndent(); |
| mLegacyTypeTracker.dump(pw); |
| pw.decreaseIndent(); |
| pw.println(); |
| |
| synchronized (this) { |
| pw.println("NetworkTransitionWakeLock 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(); |
| } |
| } |
| |
| private boolean isLiveNetworkAgent(NetworkAgentInfo nai, String msg) { |
| if (nai.network == null) return false; |
| final NetworkAgentInfo officialNai; |
| synchronized (mNetworkForNetId) { |
| officialNai = mNetworkForNetId.get(nai.network.netId); |
| } |
| if (officialNai != null && officialNai.equals(nai)) return true; |
| if (officialNai != null || VDBG) { |
| loge(msg + " - isLiveNetworkAgent found mismatched netId: " + officialNai + |
| " - " + nai); |
| } |
| return false; |
| } |
| |
| private boolean isRequest(NetworkRequest request) { |
| return mNetworkRequests.get(request).isRequest; |
| } |
| |
| // 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 AsyncChannel.CMD_CHANNEL_HALF_CONNECTED: { |
| handleAsyncChannelHalfConnect(msg); |
| break; |
| } |
| case AsyncChannel.CMD_CHANNEL_DISCONNECT: { |
| NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); |
| if (nai != null) nai.asyncChannel.disconnect(); |
| break; |
| } |
| case AsyncChannel.CMD_CHANNEL_DISCONNECTED: { |
| handleAsyncChannelDisconnected(msg); |
| break; |
| } |
| case NetworkAgent.EVENT_NETWORK_CAPABILITIES_CHANGED: { |
| NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); |
| if (nai == null) { |
| loge("EVENT_NETWORK_CAPABILITIES_CHANGED from unknown NetworkAgent"); |
| } else { |
| updateCapabilities(nai, (NetworkCapabilities)msg.obj); |
| } |
| break; |
| } |
| case NetworkAgent.EVENT_NETWORK_PROPERTIES_CHANGED: { |
| NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); |
| if (nai == null) { |
| loge("NetworkAgent not found for EVENT_NETWORK_PROPERTIES_CHANGED"); |
| } else { |
| if (VDBG) { |
| log("Update of LinkProperties for " + nai.name() + |
| "; created=" + nai.created); |
| } |
| LinkProperties oldLp = nai.linkProperties; |
| synchronized (nai) { |
| nai.linkProperties = (LinkProperties)msg.obj; |
| } |
| if (nai.created) updateLinkProperties(nai, oldLp); |
| } |
| break; |
| } |
| case NetworkAgent.EVENT_NETWORK_INFO_CHANGED: { |
| NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); |
| if (nai == null) { |
| loge("EVENT_NETWORK_INFO_CHANGED from unknown NetworkAgent"); |
| break; |
| } |
| info = (NetworkInfo) msg.obj; |
| updateNetworkInfo(nai, info); |
| break; |
| } |
| case NetworkAgent.EVENT_NETWORK_SCORE_CHANGED: { |
| NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); |
| if (nai == null) { |
| loge("EVENT_NETWORK_SCORE_CHANGED from unknown NetworkAgent"); |
| break; |
| } |
| Integer score = (Integer) msg.obj; |
| if (score != null) updateNetworkScore(nai, score.intValue()); |
| break; |
| } |
| case NetworkAgent.EVENT_UID_RANGES_ADDED: { |
| NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); |
| if (nai == null) { |
| loge("EVENT_UID_RANGES_ADDED from unknown NetworkAgent"); |
| break; |
| } |
| try { |
| mNetd.addVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); |
| } catch (Exception e) { |
| // Never crash! |
| loge("Exception in addVpnUidRanges: " + e); |
| } |
| break; |
| } |
| case NetworkAgent.EVENT_UID_RANGES_REMOVED: { |
| NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); |
| if (nai == null) { |
| loge("EVENT_UID_RANGES_REMOVED from unknown NetworkAgent"); |
| break; |
| } |
| try { |
| mNetd.removeVpnUidRanges(nai.network.netId, (UidRange[])msg.obj); |
| } catch (Exception e) { |
| // Never crash! |
| loge("Exception in removeVpnUidRanges: " + e); |
| } |
| break; |
| } |
| case NetworkAgent.EVENT_SET_EXPLICITLY_SELECTED: { |
| NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); |
| if (nai == null) { |
| loge("EVENT_SET_EXPLICITLY_SELECTED from unknown NetworkAgent"); |
| break; |
| } |
| if (nai.created && !nai.networkMisc.explicitlySelected) { |
| loge("ERROR: created network explicitly selected."); |
| } |
| nai.networkMisc.explicitlySelected = true; |
| break; |
| } |
| case NetworkMonitor.EVENT_NETWORK_TESTED: { |
| NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; |
| if (isLiveNetworkAgent(nai, "EVENT_NETWORK_VALIDATED")) { |
| boolean valid = (msg.arg1 == NetworkMonitor.NETWORK_TEST_RESULT_VALID); |
| if (valid) { |
| if (DBG) log("Validated " + nai.name()); |
| final boolean previouslyValidated = nai.validated; |
| final int previousScore = nai.getCurrentScore(); |
| nai.validated = true; |
| rematchNetworkAndRequests(nai, !previouslyValidated); |
| // If score has changed, rebroadcast to NetworkFactories. b/17726566 |
| if (nai.getCurrentScore() != previousScore) { |
| sendUpdatedScoreToFactories(nai); |
| } |
| } |
| updateInetCondition(nai, valid); |
| // Let the NetworkAgent know the state of its network |
| nai.asyncChannel.sendMessage( |
| android.net.NetworkAgent.CMD_REPORT_NETWORK_STATUS, |
| (valid ? NetworkAgent.VALID_NETWORK : NetworkAgent.INVALID_NETWORK), |
| 0, null); |
| } |
| break; |
| } |
| case NetworkMonitor.EVENT_NETWORK_LINGER_COMPLETE: { |
| NetworkAgentInfo nai = (NetworkAgentInfo)msg.obj; |
| if (isLiveNetworkAgent(nai, "EVENT_NETWORK_LINGER_COMPLETE")) { |
| handleLingerComplete(nai); |
| } |
| break; |
| } |
| case NetworkMonitor.EVENT_PROVISIONING_NOTIFICATION: { |
| if (msg.arg1 == 0) { |
| setProvNotificationVisibleIntent(false, msg.arg2, 0, null, null); |
| } else { |
| NetworkAgentInfo nai = null; |
| synchronized (mNetworkForNetId) { |
| nai = mNetworkForNetId.get(msg.arg2); |
| } |
| if (nai == null) { |
| loge("EVENT_PROVISIONING_NOTIFICATION from unknown NetworkMonitor"); |
| break; |
| } |
| setProvNotificationVisibleIntent(true, msg.arg2, nai.networkInfo.getType(), |
| nai.networkInfo.getExtraInfo(), (PendingIntent)msg.obj); |
| } |
| break; |
| } |
| 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()); |
| } |
| |
| EventLogTags.writeConnectivityStateChanged( |
| info.getType(), info.getSubtype(), info.getDetailedState().ordinal()); |
| |
| 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 = getLinkPropertiesForTypeInternal(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, |
| mNetTrackers[info.getType()].getNetwork().netId); |
| } |
| */ |
| } else if (state == NetworkInfo.State.DISCONNECTED) { |
| } else if (state == NetworkInfo.State.SUSPENDED) { |
| } else if (state == NetworkInfo.State.CONNECTED) { |
| // handleConnect(info); |
| } |
| notifyLockdownVpn(null); |
| 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(), mCurrentLinkProperties[info.getType()], |
| false); |
| */ |
| break; |
| } |
| } |
| } |
| } |
| |
| private void handleAsyncChannelHalfConnect(Message msg) { |
| AsyncChannel ac = (AsyncChannel) msg.obj; |
| if (mNetworkFactoryInfos.containsKey(msg.replyTo)) { |
| if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { |
| if (VDBG) log("NetworkFactory connected"); |
| // A network factory has connected. Send it all current NetworkRequests. |
| for (NetworkRequestInfo nri : mNetworkRequests.values()) { |
| if (nri.isRequest == false) continue; |
| NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); |
| ac.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, |
| (nai != null ? nai.getCurrentScore() : 0), 0, nri.request); |
| } |
| } else { |
| loge("Error connecting NetworkFactory"); |
| mNetworkFactoryInfos.remove(msg.obj); |
| } |
| } else if (mNetworkAgentInfos.containsKey(msg.replyTo)) { |
| if (msg.arg1 == AsyncChannel.STATUS_SUCCESSFUL) { |
| if (VDBG) log("NetworkAgent connected"); |
| // A network agent has requested a connection. Establish the connection. |
| mNetworkAgentInfos.get(msg.replyTo).asyncChannel. |
| sendMessage(AsyncChannel.CMD_CHANNEL_FULL_CONNECTION); |
| } else { |
| loge("Error connecting NetworkAgent"); |
| NetworkAgentInfo nai = mNetworkAgentInfos.remove(msg.replyTo); |
| if (nai != null) { |
| synchronized (mNetworkForNetId) { |
| mNetworkForNetId.remove(nai.network.netId); |
| } |
| // Just in case. |
| mLegacyTypeTracker.remove(nai); |
| } |
| } |
| } |
| } |
| private void handleAsyncChannelDisconnected(Message msg) { |
| NetworkAgentInfo nai = mNetworkAgentInfos.get(msg.replyTo); |
| if (nai != null) { |
| if (DBG) { |
| log(nai.name() + " got DISCONNECTED, was satisfying " + nai.networkRequests.size()); |
| } |
| // A network agent has disconnected. |
| if (nai.created) { |
| // Tell netd to clean up the configuration for this network |
| // (routing rules, DNS, etc). |
| try { |
| mNetd.removeNetwork(nai.network.netId); |
| } catch (Exception e) { |
| loge("Exception removing network: " + e); |
| } |
| } |
| // TODO - if we move the logic to the network agent (have them disconnect |
| // because they lost all their requests or because their score isn't good) |
| // then they would disconnect organically, report their new state and then |
| // disconnect the channel. |
| if (nai.networkInfo.isConnected()) { |
| nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, |
| null, null); |
| } |
| if (isDefaultNetwork(nai)) { |
| mDefaultInetConditionPublished = 0; |
| } |
| notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOST); |
| nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_DISCONNECTED); |
| mNetworkAgentInfos.remove(msg.replyTo); |
| updateClat(null, nai.linkProperties, nai); |
| mLegacyTypeTracker.remove(nai); |
| synchronized (mNetworkForNetId) { |
| mNetworkForNetId.remove(nai.network.netId); |
| } |
| // Since we've lost the network, go through all the requests that |
| // it was satisfying and see if any other factory can satisfy them. |
| // TODO: This logic may be better replaced with a call to rematchAllNetworksAndRequests |
| final ArrayList<NetworkAgentInfo> toActivate = new ArrayList<NetworkAgentInfo>(); |
| for (int i = 0; i < nai.networkRequests.size(); i++) { |
| NetworkRequest request = nai.networkRequests.valueAt(i); |
| NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(request.requestId); |
| if (currentNetwork != null && currentNetwork.network.netId == nai.network.netId) { |
| if (DBG) { |
| log("Checking for replacement network to handle request " + request ); |
| } |
| mNetworkForRequestId.remove(request.requestId); |
| sendUpdatedScoreToFactories(request, 0); |
| NetworkAgentInfo alternative = null; |
| for (Map.Entry entry : mNetworkAgentInfos.entrySet()) { |
| NetworkAgentInfo existing = (NetworkAgentInfo)entry.getValue(); |
| if (existing.networkInfo.isConnected() && |
| request.networkCapabilities.satisfiedByNetworkCapabilities( |
| existing.networkCapabilities) && |
| (alternative == null || |
| alternative.getCurrentScore() < existing.getCurrentScore())) { |
| alternative = existing; |
| } |
| } |
| if (alternative != null) { |
| if (DBG) log(" found replacement in " + alternative.name()); |
| if (!toActivate.contains(alternative)) { |
| toActivate.add(alternative); |
| } |
| } |
| } |
| } |
| if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { |
| removeDataActivityTracking(nai); |
| mActiveDefaultNetwork = ConnectivityManager.TYPE_NONE; |
| notifyLockdownVpn(nai); |
| requestNetworkTransitionWakelock(nai.name()); |
| } |
| for (NetworkAgentInfo networkToActivate : toActivate) { |
| networkToActivate.networkLingered.clear(); |
| networkToActivate.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); |
| rematchNetworkAndRequests(networkToActivate, false); |
| } |
| } |
| } |
| |
| private void handleRegisterNetworkRequest(Message msg) { |
| final NetworkRequestInfo nri = (NetworkRequestInfo) (msg.obj); |
| final NetworkCapabilities newCap = nri.request.networkCapabilities; |
| int score = 0; |
| |
| // Check for the best currently alive network that satisfies this request |
| NetworkAgentInfo bestNetwork = null; |
| for (NetworkAgentInfo network : mNetworkAgentInfos.values()) { |
| if (DBG) log("handleRegisterNetworkRequest checking " + network.name()); |
| if (newCap.satisfiedByNetworkCapabilities(network.networkCapabilities)) { |
| if (DBG) log("apparently satisfied. currentScore=" + network.getCurrentScore()); |
| if ((bestNetwork == null) || |
| bestNetwork.getCurrentScore() < network.getCurrentScore()) { |
| if (!nri.isRequest) { |
| // Not setting bestNetwork here as a listening NetworkRequest may be |
| // satisfied by multiple Networks. Instead the request is added to |
| // each satisfying Network and notified about each. |
| network.addRequest(nri.request); |
| notifyNetworkCallback(network, nri); |
| } else { |
| bestNetwork = network; |
| } |
| } |
| } |
| } |
| if (mNetworkForRequestId.get(nri.request.requestId)!=null) { |
| if (DBG) log("ignoring duplicate request"); |
| } else { |
| if (bestNetwork != null) { |
| if (VDBG) log("using " + bestNetwork.name()); |
| if (nri.isRequest && bestNetwork.networkInfo.isConnected()) { |
| // Cancel any lingering so the linger timeout doesn't teardown this network |
| // even though we have a request for it. |
| bestNetwork.networkLingered.clear(); |
| bestNetwork.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); |
| } |
| bestNetwork.addRequest(nri.request); |
| mNetworkForRequestId.put(nri.request.requestId, bestNetwork); |
| notifyNetworkCallback(bestNetwork, nri); |
| score = bestNetwork.currentScore; |
| if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { |
| //To support legacy calls for network request |
| mLegacyTypeTracker.add(nri.request.legacyType, bestNetwork); |
| } |
| } |
| mNetworkRequests.put(nri.request, nri); |
| if (nri.isRequest) { |
| if (DBG) log("sending new NetworkRequest to factories"); |
| for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { |
| nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, |
| score, 0, nri.request); |
| } |
| } |
| } |
| } |
| private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) { |
| NetworkRequestInfo nri = mNetworkRequests.get(request); |
| if (nri != null) { |
| if (Process.SYSTEM_UID != callingUid && nri.mUid != callingUid) { |
| if (DBG) log("Attempt to release unowned NetworkRequest " + request); |
| return; |
| } |
| if (DBG) log("releasing NetworkRequest " + request); |
| nri.unlinkDeathRecipient(); |
| mNetworkRequests.remove(request); |
| if (nri.isRequest) { |
| // Find all networks that are satisfying this request and remove the request |
| // from their request lists. |
| for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { |
| if (nai.networkRequests.get(nri.request.requestId) != null) { |
| nai.networkRequests.remove(nri.request.requestId); |
| if (DBG) { |
| log(" Removing from current network " + nai.name() + |
| ", leaving " + nai.networkRequests.size() + |
| " requests."); |
| } |
| // check if has any requests remaining and if not, |
| // disconnect (unless it's a VPN). |
| boolean keep = nai.isVPN(); |
| for (int i = 0; i < nai.networkRequests.size() && !keep; i++) { |
| NetworkRequest r = nai.networkRequests.valueAt(i); |
| if (isRequest(r)) keep = true; |
| } |
| if (!keep) { |
| if (DBG) log("no live requests for " + nai.name() + "; disconnecting"); |
| nai.asyncChannel.disconnect(); |
| } |
| } |
| } |
| |
| // Maintain the illusion. When this request arrived, we might have preteneded |
| // that a network connected to serve it, even though the network was already |
| // connected. Now that this request has gone away, we might have to pretend |
| // that the network disconnected. LegacyTypeTracker will generate that |
| // phatom disconnect for this type. |
| NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId); |
| if (nai != null) { |
| mNetworkForRequestId.remove(nri.request.requestId); |
| if (nri.request.legacyType != TYPE_NONE) { |
| mLegacyTypeTracker.remove(nri.request.legacyType, nai); |
| } |
| } |
| |
| for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { |
| nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, |
| nri.request); |
| } |
| } else { |
| // listens don't have a singular affectedNetwork. Check all networks to see |
| // if this listen request applies and remove it. |
| for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { |
| nai.networkRequests.remove(nri.request.requestId); |
| } |
| } |
| callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED); |
| } |
| } |
| |
| private class InternalHandler extends Handler { |
| public InternalHandler(Looper looper) { |
| super(looper); |
| } |
| |
| @Override |
| public void handleMessage(Message msg) { |
| NetworkInfo info; |
| switch (msg.what) { |
| case EVENT_EXPIRE_NET_TRANSITION_WAKELOCK: |
| case EVENT_CLEAR_NET_TRANSITION_WAKELOCK: { |
| String causedBy = null; |
| synchronized (ConnectivityService.this) { |
| if (msg.arg1 == mNetTransitionWakeLockSerialNumber && |
| mNetTransitionWakeLock.isHeld()) { |
| mNetTransitionWakeLock.release(); |
| causedBy = mNetTransitionWakeLockCausedBy; |
| } else { |
| break; |
| } |
| } |
| if (msg.what == EVENT_EXPIRE_NET_TRANSITION_WAKELOCK) { |
| log("Failed to find a new network - expiring NetTransition Wakelock"); |
| } else { |
| log("NetTransition Wakelock (" + (causedBy == null ? "unknown" : causedBy) + |
| " cleared because we found a replacement network"); |
| } |
| 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_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((ProxyInfo)msg.obj); |
| break; |
| } |
| case EVENT_REGISTER_NETWORK_FACTORY: { |
| handleRegisterNetworkFactory((NetworkFactoryInfo)msg.obj); |
| break; |
| } |
| case EVENT_UNREGISTER_NETWORK_FACTORY: { |
| handleUnregisterNetworkFactory((Messenger)msg.obj); |
| break; |
| } |
| case EVENT_REGISTER_NETWORK_AGENT: { |
| handleRegisterNetworkAgent((NetworkAgentInfo)msg.obj); |
| break; |
| } |
| case EVENT_REGISTER_NETWORK_REQUEST: |
| case EVENT_REGISTER_NETWORK_LISTENER: { |
| handleRegisterNetworkRequest(msg); |
| break; |
| } |
| case EVENT_RELEASE_NETWORK_REQUEST: { |
| handleReleaseNetworkRequest((NetworkRequest) msg.obj, msg.arg1); |
| break; |
| } |
| case EVENT_SYSTEM_READY: { |
| for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { |
| nai.networkMonitor.systemReady = true; |
| } |
| break; |
| } |
| } |
| } |
| } |
| |
| // javadoc from interface |
| public int tether(String iface) { |
| ConnectivityManager.enforceTetherChangePermission(mContext); |
| if (isTetheringSupported()) { |
| return mTethering.tether(iface); |
| } else { |
| return ConnectivityManager.TETHER_ERROR_UNSUPPORTED; |
| } |
| } |
| |
| // javadoc from interface |
| public int untether(String iface) { |
| ConnectivityManager.enforceTetherChangePermission(mContext); |
| |
| 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) { |
| ConnectivityManager.enforceTetherChangePermission(mContext); |
| 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(); |
| } |
| |
| public String[] getTetheredDhcpRanges() { |
| enforceConnectivityInternalPermission(); |
| return mTethering.getTetheredDhcpRanges(); |
| } |
| |
| // 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) |
| && !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING); |
| return tetherEnabledInSettings && ((mTethering.getTetherableUsbRegexs().length != 0 || |
| mTethering.getTetherableWifiRegexs().length != 0 || |
| mTethering.getTetherableBluetoothRegexs().length != 0) && |
| mTethering.getUpstreamIfaceTypes().length != 0); |
| } |
| |
| // Called when we lose the default network and have no replacement yet. |
| // This will automatically be cleared after X seconds or a new default network |
| // becomes CONNECTED, whichever happens first. The timer is started by the |
| // first caller and not restarted by subsequent callers. |
| private void requestNetworkTransitionWakelock(String forWhom) { |
| int serialNum = 0; |
| synchronized (this) { |
| if (mNetTransitionWakeLock.isHeld()) return; |
| serialNum = ++mNetTransitionWakeLockSerialNumber; |
| mNetTransitionWakeLock.acquire(); |
| mNetTransitionWakeLockCausedBy = forWhom; |
| } |
| mHandler.sendMessageDelayed(mHandler.obtainMessage( |
| EVENT_EXPIRE_NET_TRANSITION_WAKELOCK, serialNum, 0), |
| mNetTransitionWakeLockTimeout); |
| return; |
| } |
| |
| // 100 percent is full good, 0 is full bad. |
| public void reportInetCondition(int networkType, int percentage) { |
| if (percentage > 50) return; // don't handle good network reports |
| NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); |
| if (nai != null) reportBadNetwork(nai.network); |
| } |
| |
| public void reportBadNetwork(Network network) { |
| enforceAccessPermission(); |
| enforceInternetPermission(); |
| |
| if (network == null) return; |
| |
| final int uid = Binder.getCallingUid(); |
| NetworkAgentInfo nai = null; |
| synchronized (mNetworkForNetId) { |
| nai = mNetworkForNetId.get(network.netId); |
| } |
| if (nai == null) return; |
| if (DBG) log("reportBadNetwork(" + nai.name() + ") by " + uid); |
| synchronized (nai) { |
| // Validating an uncreated network could result in a call to rematchNetworkAndRequests() |
| // which isn't meant to work on uncreated networks. |
| if (!nai.created) return; |
| |
| if (isNetworkBlocked(nai, uid)) return; |
| |
| nai.networkMonitor.sendMessage(NetworkMonitor.CMD_FORCE_REEVALUATION, uid); |
| } |
| } |
| |
| public ProxyInfo 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) { |
| ProxyInfo ret = mGlobalProxy; |
| if ((ret == null) && !mDefaultProxyDisabled) ret = mDefaultProxy; |
| return ret; |
| } |
| } |
| |
| public void setGlobalProxy(ProxyInfo 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()) || |
| (proxyProperties.getPacFileUrl() != null))) { |
| if (!proxyProperties.isValid()) { |
| if (DBG) |
| log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); |
| return; |
| } |
| mGlobalProxy = new ProxyInfo(proxyProperties); |
| host = mGlobalProxy.getHost(); |
| port = mGlobalProxy.getPort(); |
| exclList = mGlobalProxy.getExclusionListAsString(); |
| if (proxyProperties.getPacFileUrl() != null) { |
| pacFileUrl = proxyProperties.getPacFileUrl().toString(); |
| } |
| } 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)) { |
| ProxyInfo proxyProperties; |
| if (!TextUtils.isEmpty(pacFileUrl)) { |
| proxyProperties = new ProxyInfo(pacFileUrl); |
| } else { |
| proxyProperties = new ProxyInfo(host, port, exclList); |
| } |
| if (!proxyProperties.isValid()) { |
| if (DBG) log("Invalid proxy properties, ignoring: " + proxyProperties.toString()); |
| return; |
| } |
| |
| synchronized (mProxyLock) { |
| mGlobalProxy = proxyProperties; |
| } |
| } |
| } |
| |
| public ProxyInfo 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(ProxyInfo proxy) { |
| if (proxy != null && TextUtils.isEmpty(proxy.getHost()) |
| && (proxy.getPacFileUrl() == null)) { |
| 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; |
| } |
| |
| // This call could be coming from the PacManager, containing the port of the local |
| // proxy. If this new proxy matches the global proxy then copy this proxy to the |
| // global (to get the correct local port), and send a broadcast. |
| // TODO: Switch PacManager to have its own message to send back rather than |
| // reusing EVENT_HAS_CHANGED_PROXY and this call to handleApplyDefaultProxy. |
| if ((mGlobalProxy != null) && (proxy != null) && (proxy.getPacFileUrl() != null) |
| && proxy.getPacFileUrl().equals(mGlobalProxy.getPacFileUrl())) { |
| mGlobalProxy = proxy; |
| sendProxyBroadcast(mGlobalProxy); |
| 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; |
| } |
| } |
| ProxyInfo p = new ProxyInfo(data[0], proxyPort, ""); |
| setGlobalProxy(p); |
| } |
| } |
| |
| private void sendProxyBroadcast(ProxyInfo proxy) { |
| if (proxy == null) proxy = new ProxyInfo("", 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 if (TextUtils.equals(feature, Phone.FEATURE_ENABLE_EMERGENCY)) { |
| usedNetworkType = ConnectivityManager.TYPE_MOBILE_EMERGENCY; |
| } 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; |
| } |
| |
| /** |
| * 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); |
| } |
| } |
| |
| /** |
| * Set whether the current VPN package has the ability to launch VPNs without |
| * user intervention. This method is used by system UIs and not available |
| * in ConnectivityManager. Permissions are checked in Vpn class. |
| * @hide |
| */ |
| @Override |
| public void setVpnPackageAuthorization(boolean authorized) { |
| int user = UserHandle.getUserId(Binder.getCallingUid()); |
| synchronized(mVpns) { |
| mVpns.get(user).setPackageAuthorization(authorized); |
| } |
| } |
| |
| /** |
| * 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(); |
| } |
| } |
| |
| @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; |
| |
| synchronized(mNetworkForNetId) { |
| for (int i = 0; i < mNetworkForNetId.size(); i++) { |
| NetworkAgentInfo nai = mNetworkForNetId.valueAt(i); |
| LinkProperties lp = nai.linkProperties; |
| if (lp != null && iface.equals(lp.getInterfaceName()) && nai.networkInfo != null) { |
| return nai.networkInfo.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)); |
| } |
| |
| @Override |
| public int checkMobileProvisioning(int suggestedTimeOutMs) { |
| // TODO: Remove? Any reason to trigger a provisioning check? |
| return -1; |
| } |
| |
| private static final String NOTIFICATION_ID = "CaptivePortal.Notification"; |
| private volatile boolean mIsNotificationVisible = false; |
| |
| private void setProvNotificationVisible(boolean visible, int networkType, String action) { |
| if (DBG) { |
| log("setProvNotificationVisible: E visible=" + visible + " networkType=" + networkType |
| + " action=" + action); |
| } |
| Intent intent = new Intent(action); |
| PendingIntent pendingIntent = PendingIntent.getBroadcast(mContext, 0, intent, 0); |
| // Concatenate the range of types onto the range of NetIDs. |
| int id = MAX_NET_ID + 1 + (networkType - ConnectivityManager.TYPE_NONE); |
| setProvNotificationVisibleIntent(visible, id, networkType, null, pendingIntent); |
| } |
| |
| /** |
| * Show or hide network provisioning notificaitons. |
| * |
| * @param id an identifier that uniquely identifies this notification. This must match |
| * between show and hide calls. We use the NetID value but for legacy callers |
| * we concatenate the range of types with the range of NetIDs. |
| */ |
| private void setProvNotificationVisibleIntent(boolean visible, int id, int networkType, |
| String extraInfo, PendingIntent intent) { |
| if (DBG) { |
| log("setProvNotificationVisibleIntent: E visible=" + visible + " networkType=" + |
| networkType + " extraInfo=" + extraInfo); |
| } |
| |
| Resources r = Resources.getSystem(); |
| NotificationManager notificationManager = (NotificationManager) mContext |
| .getSystemService(Context.NOTIFICATION_SERVICE); |
| |
| if (visible) { |
| CharSequence title; |
| CharSequence details; |
| int icon; |
| 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; |
| 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; |
| 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; |
| break; |
| } |
| |
| notification.when = 0; |
| notification.icon = icon; |
| notification.flags = Notification.FLAG_AUTO_CANCEL; |
| notification.tickerText = title; |
| notification.color = mContext.getResources().getColor( |
| com.android.internal.R.color.system_notification_accent_color); |
| notification.setLatestEventInfo(mContext, title, details, notification.contentIntent); |
| notification.contentIntent = intent; |
| |
| try { |
| notificationManager.notify(NOTIFICATION_ID, id, notification); |
| } catch (NullPointerException npe) { |
| loge("setNotificaitionVisible: visible notificationManager npe=" + npe); |
| npe.printStackTrace(); |
| } |
| } else { |
| try { |
| notificationManager.cancel(NOTIFICATION_ID, id); |
| } 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 action) { |
| enforceConnectivityInternalPermission(); |
| final long ident = Binder.clearCallingIdentity(); |
| try { |
| setProvNotificationVisible(visible, networkType, action); |
| } finally { |
| Binder.restoreCallingIdentity(ident); |
| } |
| } |
| |
| @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(mHandler.getLooper(), mContext, mNetd, this, userId); |
| mVpns.put(userId, userVpn); |
| } |
| } |
| |
| 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) && mNetTrackers[networkType] != null) { |
| return mNetTrackers[networkType].getLinkQualityInfo(); |
| } else { |
| return null; |
| } |
| } |
| |
| @Override |
| public LinkQualityInfo getActiveLinkQualityInfo() { |
| enforceAccessPermission(); |
| if (isNetworkTypeValid(mActiveDefaultNetwork) && |
| mNetTrackers[mActiveDefaultNetwork] != null) { |
| 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() { |
| |
| if (SAMPLE_DBG) 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); |
| } |
| } |
| } |
| |
| if (SAMPLE_DBG) log("Done."); |
| |
| int samplingIntervalInSeconds = Settings.Global.getInt(mContext.getContentResolver(), |
| Settings.Global.CONNECTIVITY_SAMPLING_INTERVAL_IN_SECONDS, |
| DEFAULT_SAMPLING_INTERVAL_IN_SECONDS); |
| |
| if (SAMPLE_DBG) { |
| log("Setting timer for " + String.valueOf(samplingIntervalInSeconds) + "seconds"); |
| } |
| |
| setAlarm(samplingIntervalInSeconds * 1000, mSampleIntervalElapsedIntent); |
| } |
| |
| /** |
| * Sets a network sampling alarm. |
| */ |
| void setAlarm(int timeoutInMilliseconds, PendingIntent intent) { |
| long wakeupTime = SystemClock.elapsedRealtime() + timeoutInMilliseconds; |
| int alarmType; |
| if (Resources.getSystem().getBoolean( |
| R.bool.config_networkSamplingWakesDevice)) { |
| alarmType = AlarmManager.ELAPSED_REALTIME_WAKEUP; |
| } else { |
| alarmType = AlarmManager.ELAPSED_REALTIME; |
| } |
| mAlarmManager.set(alarmType, wakeupTime, intent); |
| } |
| |
| private final HashMap<Messenger, NetworkFactoryInfo> mNetworkFactoryInfos = |
| new HashMap<Messenger, NetworkFactoryInfo>(); |
| private final HashMap<NetworkRequest, NetworkRequestInfo> mNetworkRequests = |
| new HashMap<NetworkRequest, NetworkRequestInfo>(); |
| |
| private static class NetworkFactoryInfo { |
| public final String name; |
| public final Messenger messenger; |
| public final AsyncChannel asyncChannel; |
| |
| public NetworkFactoryInfo(String name, Messenger messenger, AsyncChannel asyncChannel) { |
| this.name = name; |
| this.messenger = messenger; |
| this.asyncChannel = asyncChannel; |
| } |
| } |
| |
| /** |
| * Tracks info about the requester. |
| * Also used to notice when the calling process dies so we can self-expire |
| */ |
| private class NetworkRequestInfo implements IBinder.DeathRecipient { |
| static final boolean REQUEST = true; |
| static final boolean LISTEN = false; |
| |
| final NetworkRequest request; |
| IBinder mBinder; |
| final int mPid; |
| final int mUid; |
| final Messenger messenger; |
| final boolean isRequest; |
| |
| NetworkRequestInfo(Messenger m, NetworkRequest r, IBinder binder, boolean isRequest) { |
| super(); |
| messenger = m; |
| request = r; |
| mBinder = binder; |
| mPid = getCallingPid(); |
| mUid = getCallingUid(); |
| this.isRequest = isRequest; |
| |
| try { |
| mBinder.linkToDeath(this, 0); |
| } catch (RemoteException e) { |
| binderDied(); |
| } |
| } |
| |
| void unlinkDeathRecipient() { |
| mBinder.unlinkToDeath(this, 0); |
| } |
| |
| public void binderDied() { |
| log("ConnectivityService NetworkRequestInfo binderDied(" + |
| request + ", " + mBinder + ")"); |
| releaseNetworkRequest(request); |
| } |
| |
| public String toString() { |
| return (isRequest ? "Request" : "Listen") + " from uid/pid:" + mUid + "/" + |
| mPid + " for " + request; |
| } |
| } |
| |
| @Override |
| public NetworkRequest requestNetwork(NetworkCapabilities networkCapabilities, |
| Messenger messenger, int timeoutMs, IBinder binder, int legacyType) { |
| if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED) |
| == false) { |
| enforceConnectivityInternalPermission(); |
| } else { |
| enforceChangePermission(); |
| } |
| |
| networkCapabilities = new NetworkCapabilities(networkCapabilities); |
| |
| // if UID is restricted, don't allow them to bring up metered APNs |
| if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED) |
| == false) { |
| final int uidRules; |
| final int uid = Binder.getCallingUid(); |
| synchronized(mRulesLock) { |
| uidRules = mUidRules.get(uid, RULE_ALLOW_ALL); |
| } |
| if ((uidRules & RULE_REJECT_METERED) != 0) { |
| // we could silently fail or we can filter the available nets to only give |
| // them those they have access to. Chose the more useful |
| networkCapabilities.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_METERED); |
| } |
| } |
| |
| if (timeoutMs < 0 || timeoutMs > ConnectivityManager.MAX_NETWORK_REQUEST_TIMEOUT_MS) { |
| throw new IllegalArgumentException("Bad timeout specified"); |
| } |
| NetworkRequest networkRequest = new NetworkRequest(networkCapabilities, legacyType, |
| nextNetworkRequestId()); |
| if (DBG) log("requestNetwork for " + networkRequest); |
| NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, |
| NetworkRequestInfo.REQUEST); |
| |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_REQUEST, nri)); |
| if (timeoutMs > 0) { |
| mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_TIMEOUT_NETWORK_REQUEST, |
| nri), timeoutMs); |
| } |
| return networkRequest; |
| } |
| |
| @Override |
| public NetworkRequest pendingRequestForNetwork(NetworkCapabilities networkCapabilities, |
| PendingIntent operation) { |
| // TODO |
| return null; |
| } |
| |
| @Override |
| public NetworkRequest listenForNetwork(NetworkCapabilities networkCapabilities, |
| Messenger messenger, IBinder binder) { |
| enforceAccessPermission(); |
| |
| NetworkRequest networkRequest = new NetworkRequest(new NetworkCapabilities( |
| networkCapabilities), TYPE_NONE, nextNetworkRequestId()); |
| if (DBG) log("listenForNetwork for " + networkRequest); |
| NetworkRequestInfo nri = new NetworkRequestInfo(messenger, networkRequest, binder, |
| NetworkRequestInfo.LISTEN); |
| |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_LISTENER, nri)); |
| return networkRequest; |
| } |
| |
| @Override |
| public void pendingListenForNetwork(NetworkCapabilities networkCapabilities, |
| PendingIntent operation) { |
| } |
| |
| @Override |
| public void releaseNetworkRequest(NetworkRequest networkRequest) { |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_RELEASE_NETWORK_REQUEST, getCallingUid(), |
| 0, networkRequest)); |
| } |
| |
| @Override |
| public void registerNetworkFactory(Messenger messenger, String name) { |
| enforceConnectivityInternalPermission(); |
| NetworkFactoryInfo nfi = new NetworkFactoryInfo(name, messenger, new AsyncChannel()); |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_FACTORY, nfi)); |
| } |
| |
| private void handleRegisterNetworkFactory(NetworkFactoryInfo nfi) { |
| if (DBG) log("Got NetworkFactory Messenger for " + nfi.name); |
| mNetworkFactoryInfos.put(nfi.messenger, nfi); |
| nfi.asyncChannel.connect(mContext, mTrackerHandler, nfi.messenger); |
| } |
| |
| @Override |
| public void unregisterNetworkFactory(Messenger messenger) { |
| enforceConnectivityInternalPermission(); |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_UNREGISTER_NETWORK_FACTORY, messenger)); |
| } |
| |
| private void handleUnregisterNetworkFactory(Messenger messenger) { |
| NetworkFactoryInfo nfi = mNetworkFactoryInfos.remove(messenger); |
| if (nfi == null) { |
| loge("Failed to find Messenger in unregisterNetworkFactory"); |
| return; |
| } |
| if (DBG) log("unregisterNetworkFactory for " + nfi.name); |
| } |
| |
| /** |
| * NetworkAgentInfo supporting a request by requestId. |
| * These have already been vetted (their Capabilities satisfy the request) |
| * and the are the highest scored network available. |
| * the are keyed off the Requests requestId. |
| */ |
| private final SparseArray<NetworkAgentInfo> mNetworkForRequestId = |
| new SparseArray<NetworkAgentInfo>(); |
| |
| private final SparseArray<NetworkAgentInfo> mNetworkForNetId = |
| new SparseArray<NetworkAgentInfo>(); |
| |
| // NetworkAgentInfo keyed off its connecting messenger |
| // TODO - eval if we can reduce the number of lists/hashmaps/sparsearrays |
| private final HashMap<Messenger, NetworkAgentInfo> mNetworkAgentInfos = |
| new HashMap<Messenger, NetworkAgentInfo>(); |
| |
| private final NetworkRequest mDefaultRequest; |
| |
| private boolean isDefaultNetwork(NetworkAgentInfo nai) { |
| return mNetworkForRequestId.get(mDefaultRequest.requestId) == nai; |
| } |
| |
| public void registerNetworkAgent(Messenger messenger, NetworkInfo networkInfo, |
| LinkProperties linkProperties, NetworkCapabilities networkCapabilities, |
| int currentScore, NetworkMisc networkMisc) { |
| enforceConnectivityInternalPermission(); |
| |
| NetworkAgentInfo nai = new NetworkAgentInfo(messenger, new AsyncChannel(), |
| new NetworkInfo(networkInfo), new LinkProperties(linkProperties), |
| new NetworkCapabilities(networkCapabilities), currentScore, mContext, mTrackerHandler, |
| new NetworkMisc(networkMisc)); |
| synchronized (this) { |
| nai.networkMonitor.systemReady = mSystemReady; |
| } |
| if (DBG) log("registerNetworkAgent " + nai); |
| mHandler.sendMessage(mHandler.obtainMessage(EVENT_REGISTER_NETWORK_AGENT, nai)); |
| } |
| |
| private void handleRegisterNetworkAgent(NetworkAgentInfo na) { |
| if (VDBG) log("Got NetworkAgent Messenger"); |
| mNetworkAgentInfos.put(na.messenger, na); |
| assignNextNetId(na); |
| na.asyncChannel.connect(mContext, mTrackerHandler, na.messenger); |
| NetworkInfo networkInfo = na.networkInfo; |
| na.networkInfo = null; |
| updateNetworkInfo(na, networkInfo); |
| } |
| |
| private void updateLinkProperties(NetworkAgentInfo networkAgent, LinkProperties oldLp) { |
| LinkProperties newLp = networkAgent.linkProperties; |
| int netId = networkAgent.network.netId; |
| |
| // The NetworkAgentInfo does not know whether clatd is running on its network or not. Before |
| // we do anything else, make sure its LinkProperties are accurate. |
| mClat.fixupLinkProperties(networkAgent, oldLp); |
| |
| updateInterfaces(newLp, oldLp, netId); |
| updateMtu(newLp, oldLp); |
| // TODO - figure out what to do for clat |
| // for (LinkProperties lp : newLp.getStackedLinks()) { |
| // updateMtu(lp, null); |
| // } |
| updateTcpBufferSizes(networkAgent); |
| final boolean flushDns = updateRoutes(newLp, oldLp, netId); |
| updateDnses(newLp, oldLp, netId, flushDns); |
| updateClat(newLp, oldLp, networkAgent); |
| if (isDefaultNetwork(networkAgent)) handleApplyDefaultProxy(newLp.getHttpProxy()); |
| // TODO - move this check to cover the whole function |
| if (!Objects.equals(newLp, oldLp)) { |
| notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_IP_CHANGED); |
| } |
| } |
| |
| private void updateClat(LinkProperties newLp, LinkProperties oldLp, NetworkAgentInfo na) { |
| final boolean wasRunningClat = mClat.isRunningClat(na); |
| final boolean shouldRunClat = Nat464Xlat.requiresClat(na); |
| |
| if (!wasRunningClat && shouldRunClat) { |
| // Start clatd. If it's already been started but is not running yet, this is a no-op. |
| mClat.startClat(na); |
| } else if (wasRunningClat && !shouldRunClat) { |
| mClat.stopClat(); |
| } |
| } |
| |
| private void updateInterfaces(LinkProperties newLp, LinkProperties oldLp, int netId) { |
| CompareResult<String> interfaceDiff = new CompareResult<String>(); |
| if (oldLp != null) { |
| interfaceDiff = oldLp.compareAllInterfaceNames(newLp); |
| } else if (newLp != null) { |
| interfaceDiff.added = newLp.getAllInterfaceNames(); |
| } |
| for (String iface : interfaceDiff.added) { |
| try { |
| if (DBG) log("Adding iface " + iface + " to network " + netId); |
| mNetd.addInterfaceToNetwork(iface, netId); |
| } catch (Exception e) { |
| loge("Exception adding interface: " + e); |
| } |
| } |
| for (String iface : interfaceDiff.removed) { |
| try { |
| if (DBG) log("Removing iface " + iface + " from network " + netId); |
| mNetd.removeInterfaceFromNetwork(iface, netId); |
| } catch (Exception e) { |
| loge("Exception removing interface: " + e); |
| } |
| } |
| } |
| |
| /** |
| * Have netd update routes from oldLp to newLp. |
| * @return true if routes changed between oldLp and newLp |
| */ |
| private boolean updateRoutes(LinkProperties newLp, LinkProperties oldLp, int netId) { |
| CompareResult<RouteInfo> routeDiff = new CompareResult<RouteInfo>(); |
| if (oldLp != null) { |
| routeDiff = oldLp.compareAllRoutes(newLp); |
| } else if (newLp != null) { |
| routeDiff.added = newLp.getAllRoutes(); |
| } |
| |
| // add routes before removing old in case it helps with continuous connectivity |
| |
| // do this twice, adding non-nexthop routes first, then routes they are dependent on |
| for (RouteInfo route : routeDiff.added) { |
| if (route.hasGateway()) continue; |
| if (DBG) log("Adding Route [" + route + "] to network " + netId); |
| try { |
| mNetd.addRoute(netId, route); |
| } catch (Exception e) { |
| if ((route.getDestination().getAddress() instanceof Inet4Address) || VDBG) { |
| loge("Exception in addRoute for non-gateway: " + e); |
| } |
| } |
| } |
| for (RouteInfo route : routeDiff.added) { |
| if (route.hasGateway() == false) continue; |
| if (DBG) log("Adding Route [" + route + "] to network " + netId); |
| try { |
| mNetd.addRoute(netId, route); |
| } catch (Exception e) { |
| if ((route.getGateway() instanceof Inet4Address) || VDBG) { |
| loge("Exception in addRoute for gateway: " + e); |
| } |
| } |
| } |
| |
| for (RouteInfo route : routeDiff.removed) { |
| if (DBG) log("Removing Route [" + route + "] from network " + netId); |
| try { |
| mNetd.removeRoute(netId, route); |
| } catch (Exception e) { |
| loge("Exception in removeRoute: " + e); |
| } |
| } |
| return !routeDiff.added.isEmpty() || !routeDiff.removed.isEmpty(); |
| } |
| private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId, boolean flush) { |
| if (oldLp == null || (newLp.isIdenticalDnses(oldLp) == false)) { |
| Collection<InetAddress> dnses = newLp.getDnsServers(); |
| if (dnses.size() == 0 && mDefaultDns != null) { |
| dnses = new ArrayList(); |
| dnses.add(mDefaultDns); |
| if (DBG) { |
| loge("no dns provided for netId " + netId + ", so using defaults"); |
| } |
| } |
| if (DBG) log("Setting Dns servers for network " + netId + " to " + dnses); |
| try { |
| mNetd.setDnsServersForNetwork(netId, NetworkUtils.makeStrings(dnses), |
| newLp.getDomains()); |
| } catch (Exception e) { |
| loge("Exception in setDnsServersForNetwork: " + e); |
| } |
| NetworkAgentInfo defaultNai = mNetworkForRequestId.get(mDefaultRequest.requestId); |
| if (defaultNai != null && defaultNai.network.netId == netId) { |
| setDefaultDnsSystemProperties(dnses); |
| } |
| flushVmDnsCache(); |
| } else if (flush) { |
| try { |
| mNetd.flushNetworkDnsCache(netId); |
| } catch (Exception e) { |
| loge("Exception in flushNetworkDnsCache: " + e); |
| } |
| flushVmDnsCache(); |
| } |
| } |
| |
| private void setDefaultDnsSystemProperties(Collection<InetAddress> dnses) { |
| int last = 0; |
| 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; |
| } |
| |
| |
| private void updateCapabilities(NetworkAgentInfo networkAgent, |
| NetworkCapabilities networkCapabilities) { |
| // TODO - turn this on in MR1 when we have more dogfooding time. |
| // rematchAllNetworksAndRequests(); |
| if (!Objects.equals(networkAgent.networkCapabilities, networkCapabilities)) { |
| synchronized (networkAgent) { |
| networkAgent.networkCapabilities = networkCapabilities; |
| } |
| notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_CAP_CHANGED); |
| } |
| } |
| |
| private void sendUpdatedScoreToFactories(NetworkAgentInfo nai) { |
| for (int i = 0; i < nai.networkRequests.size(); i++) { |
| NetworkRequest nr = nai.networkRequests.valueAt(i); |
| // Don't send listening requests to factories. b/17393458 |
| if (!isRequest(nr)) continue; |
| sendUpdatedScoreToFactories(nr, nai.getCurrentScore()); |
| } |
| } |
| |
| private void sendUpdatedScoreToFactories(NetworkRequest networkRequest, int score) { |
| if (VDBG) log("sending new Min Network Score(" + score + "): " + networkRequest.toString()); |
| for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) { |
| nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_REQUEST_NETWORK, score, 0, |
| networkRequest); |
| } |
| } |
| |
| private void callCallbackForRequest(NetworkRequestInfo nri, |
| NetworkAgentInfo networkAgent, int notificationType) { |
| if (nri.messenger == null) return; // Default request has no msgr |
| Bundle bundle = new Bundle(); |
| bundle.putParcelable(NetworkRequest.class.getSimpleName(), |
| new NetworkRequest(nri.request)); |
| Message msg = Message.obtain(); |
| if (notificationType != ConnectivityManager.CALLBACK_UNAVAIL && |
| notificationType != ConnectivityManager.CALLBACK_RELEASED) { |
| bundle.putParcelable(Network.class.getSimpleName(), networkAgent.network); |
| } |
| switch (notificationType) { |
| case ConnectivityManager.CALLBACK_LOSING: { |
| msg.arg1 = 30 * 1000; // TODO - read this from NetworkMonitor |
| break; |
| } |
| case ConnectivityManager.CALLBACK_CAP_CHANGED: { |
| bundle.putParcelable(NetworkCapabilities.class.getSimpleName(), |
| new NetworkCapabilities(networkAgent.networkCapabilities)); |
| break; |
| } |
| case ConnectivityManager.CALLBACK_IP_CHANGED: { |
| bundle.putParcelable(LinkProperties.class.getSimpleName(), |
| new LinkProperties(networkAgent.linkProperties)); |
| break; |
| } |
| } |
| msg.what = notificationType; |
| msg.setData(bundle); |
| try { |
| if (VDBG) { |
| log("sending notification " + notifyTypeToName(notificationType) + |
| " for " + nri.request); |
| } |
| nri.messenger.send(msg); |
| } catch (RemoteException e) { |
| // may occur naturally in the race of binder death. |
| loge("RemoteException caught trying to send a callback msg for " + nri.request); |
| } |
| } |
| |
| private void teardownUnneededNetwork(NetworkAgentInfo nai) { |
| for (int i = 0; i < nai.networkRequests.size(); i++) { |
| NetworkRequest nr = nai.networkRequests.valueAt(i); |
| // Ignore listening requests. |
| if (!isRequest(nr)) continue; |
| loge("Dead network still had at least " + nr); |
| break; |
| } |
| nai.asyncChannel.disconnect(); |
| } |
| |
| private void handleLingerComplete(NetworkAgentInfo oldNetwork) { |
| if (oldNetwork == null) { |
| loge("Unknown NetworkAgentInfo in handleLingerComplete"); |
| return; |
| } |
| if (DBG) log("handleLingerComplete for " + oldNetwork.name()); |
| teardownUnneededNetwork(oldNetwork); |
| } |
| |
| private void makeDefault(NetworkAgentInfo newNetwork) { |
| if (DBG) log("Switching to new default network: " + newNetwork); |
| mActiveDefaultNetwork = newNetwork.networkInfo.getType(); |
| setupDataActivityTracking(newNetwork); |
| try { |
| mNetd.setDefaultNetId(newNetwork.network.netId); |
| } catch (Exception e) { |
| loge("Exception setting default network :" + e); |
| } |
| notifyLockdownVpn(newNetwork); |
| handleApplyDefaultProxy(newNetwork.linkProperties.getHttpProxy()); |
| updateTcpBufferSizes(newNetwork); |
| } |
| |
| // Handles a network appearing or improving its score. |
| // |
| // - Evaluates all current NetworkRequests that can be |
| // satisfied by newNetwork, and reassigns to newNetwork |
| // any such requests for which newNetwork is the best. |
| // |
| // - Lingers any Networks that as a result are no longer |
| // needed. A network is needed if it is the best network for |
| // one or more NetworkRequests, or if it is a VPN. |
| // |
| // - Tears down newNetwork if it just became validated |
| // (i.e. nascent==true) but turns out to be unneeded. |
| // Does not tear down newNetwork if it is unvalidated, |
| // because future validation may improve newNetwork's |
| // score enough that it is needed. |
| // |
| // NOTE: This function only adds NetworkRequests that "newNetwork" could satisfy, |
| // it does not remove NetworkRequests that other Networks could better satisfy. |
| // If you need to handle decreases in score, use {@link rematchAllNetworksAndRequests}. |
| // This function should be used when possible instead of {@code rematchAllNetworksAndRequests} |
| // as it performs better by a factor of the number of Networks. |
| // |
| // @param nascent indicates if newNetwork just became validated, in which case it should be |
| // torn down if unneeded. If nascent is false, no action is taken if newNetwork |
| // is found to be unneeded by this call. Presumably, in this case, either: |
| // - newNetwork is unvalidated (and left alive), or |
| // - the NetworkRequests keeping newNetwork alive have been transitioned to |
| // another higher scoring network by another call to rematchNetworkAndRequests() |
| // and this other call also lingered newNetwork. |
| private void rematchNetworkAndRequests(NetworkAgentInfo newNetwork, boolean nascent) { |
| if (!newNetwork.created) loge("ERROR: uncreated network being rematched."); |
| if (nascent && !newNetwork.validated) loge("ERROR: nascent network not validated."); |
| boolean keep = newNetwork.isVPN(); |
| boolean isNewDefault = false; |
| if (DBG) log("rematching " + newNetwork.name()); |
| // Find and migrate to this Network any NetworkRequests for |
| // which this network is now the best. |
| ArrayList<NetworkAgentInfo> affectedNetworks = new ArrayList<NetworkAgentInfo>(); |
| if (VDBG) log(" network has: " + newNetwork.networkCapabilities); |
| for (NetworkRequestInfo nri : mNetworkRequests.values()) { |
| NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId); |
| if (newNetwork == currentNetwork) { |
| if (DBG) { |
| log("Network " + newNetwork.name() + " was already satisfying" + |
| " request " + nri.request.requestId + ". No change."); |
| } |
| keep = true; |
| continue; |
| } |
| |
| // check if it satisfies the NetworkCapabilities |
| if (VDBG) log(" checking if request is satisfied: " + nri.request); |
| if (nri.request.networkCapabilities.satisfiedByNetworkCapabilities( |
| newNetwork.networkCapabilities)) { |
| if (!nri.isRequest) { |
| // This is not a request, it's a callback listener. |
| // Add it to newNetwork regardless of score. |
| newNetwork.addRequest(nri.request); |
| continue; |
| } |
| |
| // next check if it's better than any current network we're using for |
| // this request |
| if (VDBG) { |
| log("currentScore = " + |
| (currentNetwork != null ? currentNetwork.getCurrentScore() : 0) + |
| ", newScore = " + newNetwork.getCurrentScore()); |
| } |
| if (currentNetwork == null || |
| currentNetwork.getCurrentScore() < newNetwork.getCurrentScore()) { |
| if (currentNetwork != null) { |
| if (DBG) log(" accepting network in place of " + currentNetwork.name()); |
| currentNetwork.networkRequests.remove(nri.request.requestId); |
| currentNetwork.networkLingered.add(nri.request); |
| affectedNetworks.add(currentNetwork); |
| } else { |
| if (DBG) log(" accepting network in place of null"); |
| } |
| mNetworkForRequestId.put(nri.request.requestId, newNetwork); |
| newNetwork.addRequest(nri.request); |
| if (nri.isRequest && nri.request.legacyType != TYPE_NONE) { |
| mLegacyTypeTracker.add(nri.request.legacyType, newNetwork); |
| } |
| keep = true; |
| // Tell NetworkFactories about the new score, so they can stop |
| // trying to connect if they know they cannot match it. |
| // TODO - this could get expensive if we have alot of requests for this |
| // network. Think about if there is a way to reduce this. Push |
| // netid->request mapping to each factory? |
| sendUpdatedScoreToFactories(nri.request, newNetwork.getCurrentScore()); |
| if (mDefaultRequest.requestId == nri.request.requestId) { |
| isNewDefault = true; |
| // TODO: Remove following line. It's redundant with makeDefault call. |
| mActiveDefaultNetwork = newNetwork.networkInfo.getType(); |
| if (newNetwork.linkProperties != null) { |
| updateTcpBufferSizes(newNetwork); |
| setDefaultDnsSystemProperties( |
| newNetwork.linkProperties.getDnsServers()); |
| } else { |
| setDefaultDnsSystemProperties(new ArrayList<InetAddress>()); |
| } |
| // Maintain the illusion: since the legacy API only |
| // understands one network at a time, we must pretend |
| // that the current default network disconnected before |
| // the new one connected. |
| if (currentNetwork != null) { |
| mLegacyTypeTracker.remove(currentNetwork.networkInfo.getType(), |
| currentNetwork); |
| } |
| mDefaultInetConditionPublished = newNetwork.validated ? 100 : 0; |
| mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork); |
| notifyLockdownVpn(newNetwork); |
| } |
| } |
| } |
| } |
| // Linger any networks that are no longer needed. |
| for (NetworkAgentInfo nai : affectedNetworks) { |
| boolean teardown = !nai.isVPN() && nai.validated; |
| for (int i = 0; i < nai.networkRequests.size() && teardown; i++) { |
| NetworkRequest nr = nai.networkRequests.valueAt(i); |
| try { |
| if (isRequest(nr)) { |
| teardown = false; |
| } |
| } catch (Exception e) { |
| loge("Request " + nr + " not found in mNetworkRequests."); |
| loge(" it came from request list of " + nai.name()); |
| } |
| } |
| if (teardown) { |
| nai.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_LINGER); |
| notifyNetworkCallbacks(nai, ConnectivityManager.CALLBACK_LOSING); |
| } else { |
| // not going to linger, so kill the list of linger networks.. only |
| // notify them of linger if it happens as the result of gaining another, |
| // but if they transition and old network stays up, don't tell them of linger |
| // or very delayed loss |
| nai.networkLingered.clear(); |
| if (VDBG) log("Lingered for " + nai.name() + " cleared"); |
| } |
| } |
| if (keep) { |
| if (isNewDefault) { |
| // Notify system services that this network is up. |
| makeDefault(newNetwork); |
| 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); |
| } |
| } |
| } |
| |
| // Notify battery stats service about this network, both the normal |
| // interface and any stacked links. |
| // TODO: Avoid redoing this; this must only be done once when a network comes online. |
| try { |
| final IBatteryStats bs = BatteryStatsService.getService(); |
| final int type = newNetwork.networkInfo.getType(); |
| |
| final String baseIface = newNetwork.linkProperties.getInterfaceName(); |
| bs.noteNetworkInterfaceType(baseIface, type); |
| for (LinkProperties stacked : newNetwork.linkProperties.getStackedLinks()) { |
| final String stackedIface = stacked.getInterfaceName(); |
| bs.noteNetworkInterfaceType(stackedIface, type); |
| NetworkStatsFactory.noteStackedIface(stackedIface, baseIface); |
| } |
| } catch (RemoteException ignored) { |
| } |
| |
| notifyNetworkCallbacks(newNetwork, ConnectivityManager.CALLBACK_AVAILABLE); |
| } else if (nascent) { |
| // Only tear down newly validated networks here. Leave unvalidated to either become |
| // validated (and get evaluated against peers, one losing here) or |
| // NetworkMonitor reports a bad network and we tear it down then. |
| // Networks that have been up for a while and are validated should be torn down via |
| // the lingering process so communication on that network is given time to wrap up. |
| // TODO: Could teardown unvalidated networks when their NetworkCapabilities |
| // satisfy no NetworkRequests. |
| if (DBG) log("Validated network turns out to be unwanted. Tear it down."); |
| teardownUnneededNetwork(newNetwork); |
| } |
| } |
| |
| // Attempt to rematch all Networks with NetworkRequests. This may result in Networks |
| // being disconnected. |
| // If only one Network's score or capabilities have been modified since the last time |
| // this function was called, pass this Network in via the "changed" arugment, otherwise |
| // pass null. |
| // If only one Network has been changed but its NetworkCapabilities have not changed, |
| // pass in the Network's score (from getCurrentScore()) prior to the change via |
| // "oldScore", otherwise pass changed.getCurrentScore() or 0 if "changed" is null. |
| private void rematchAllNetworksAndRequests(NetworkAgentInfo changed, int oldScore) { |
| // TODO: This may get slow. The "changed" parameter is provided for future optimization |
| // to avoid the slowness. It is not simply enough to process just "changed", for |
| // example in the case where "changed"'s score decreases and another network should begin |
| // satifying a NetworkRequest that "changed" currently satisfies. |
| |
| // Optimization: Only reprocess "changed" if its score improved. This is safe because it |
| // can only add more NetworkRequests satisfied by "changed", and this is exactly what |
| // rematchNetworkAndRequests() handles. |
| if (changed != null && oldScore < changed.getCurrentScore()) { |
| rematchNetworkAndRequests(changed, false); |
| } else { |
| for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) { |
| rematchNetworkAndRequests(nai, false); |
| } |
| } |
| } |
| |
| private void updateInetCondition(NetworkAgentInfo nai, boolean valid) { |
| // Don't bother updating until we've graduated to validated at least once. |
| if (!nai.validated) return; |
| // For now only update icons for default connection. |
| // TODO: Update WiFi and cellular icons separately. b/17237507 |
| if (!isDefaultNetwork(nai)) return; |
| |
| int newInetCondition = valid ? 100 : 0; |
| // Don't repeat publish. |
| if (newInetCondition == mDefaultInetConditionPublished) return; |
| |
| mDefaultInetConditionPublished = newInetCondition; |
| sendInetConditionBroadcast(nai.networkInfo); |
| } |
| |
| private void notifyLockdownVpn(NetworkAgentInfo nai) { |
| if (mLockdownTracker != null) { |
| if (nai != null && nai.isVPN()) { |
| mLockdownTracker.onVpnStateChanged(nai.networkInfo); |
| } else { |
| mLockdownTracker.onNetworkInfoChanged(); |
| } |
| } |
| } |
| |
| private void updateNetworkInfo(NetworkAgentInfo networkAgent, NetworkInfo newInfo) { |
| NetworkInfo.State state = newInfo.getState(); |
| NetworkInfo oldInfo = null; |
| synchronized (networkAgent) { |
| oldInfo = networkAgent.networkInfo; |
| networkAgent.networkInfo = newInfo; |
| } |
| notifyLockdownVpn(networkAgent); |
| |
| if (oldInfo != null && oldInfo.getState() == state) { |
| if (VDBG) log("ignoring duplicate network state non-change"); |
| return; |
| } |
| if (DBG) { |
| log(networkAgent.name() + " EVENT_NETWORK_INFO_CHANGED, going from " + |
| (oldInfo == null ? "null" : oldInfo.getState()) + |
| " to " + state); |
| } |
| |
| if (state == NetworkInfo.State.CONNECTED && !networkAgent.created) { |
| try { |
| // This should never fail. Specifying an already in use NetID will cause failure. |
| if (networkAgent.isVPN()) { |
| mNetd.createVirtualNetwork(networkAgent.network.netId, |
| !networkAgent.linkProperties.getDnsServers().isEmpty(), |
| (networkAgent.networkMisc == null || |
| !networkAgent.networkMisc.allowBypass)); |
| } else { |
| mNetd.createPhysicalNetwork(networkAgent.network.netId); |
| } |
| } catch (Exception e) { |
| loge("Error creating network " + networkAgent.network.netId + ": " |
| + e.getMessage()); |
| return; |
| } |
| networkAgent.created = true; |
| updateLinkProperties(networkAgent, null); |
| notifyNetworkCallbacks(networkAgent, ConnectivityManager.CALLBACK_PRECHECK); |
| networkAgent.networkMonitor.sendMessage(NetworkMonitor.CMD_NETWORK_CONNECTED); |
| if (networkAgent.isVPN()) { |
| // Temporarily disable the default proxy (not global). |
| synchronized (mProxyLock) { |
| if (!mDefaultProxyDisabled) { |
| mDefaultProxyDisabled = true; |
| if (mGlobalProxy == null && mDefaultProxy != null) { |
| sendProxyBroadcast(null); |
| } |
| } |
| } |
| // TODO: support proxy per network. |
| } |
| // Consider network even though it is not yet validated. |
| rematchNetworkAndRequests(networkAgent, false); |
| } else if (state == NetworkInfo.State.DISCONNECTED || |
| state == NetworkInfo.State.SUSPENDED) { |
| networkAgent.asyncChannel.disconnect(); |
| if (networkAgent.isVPN()) { |
| synchronized (mProxyLock) { |
| if (mDefaultProxyDisabled) { |
| mDefaultProxyDisabled = false; |
| if (mGlobalProxy == null && mDefaultProxy != null) { |
| sendProxyBroadcast(mDefaultProxy); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| private void updateNetworkScore(NetworkAgentInfo nai, int score) { |
| if (DBG) log("updateNetworkScore for " + nai.name() + " to " + score); |
| if (score < 0) { |
| loge("updateNetworkScore for " + nai.name() + " got a negative score (" + score + |
| "). Bumping score to min of 0"); |
| score = 0; |
| } |
| |
| final int oldScore = nai.getCurrentScore(); |
| nai.setCurrentScore(score); |
| |
| if (nai.created) rematchAllNetworksAndRequests(nai, oldScore); |
| |
| sendUpdatedScoreToFactories(nai); |
| } |
| |
| // notify only this one new request of the current state |
| protected void notifyNetworkCallback(NetworkAgentInfo nai, NetworkRequestInfo nri) { |
| int notifyType = ConnectivityManager.CALLBACK_AVAILABLE; |
| // TODO - read state from monitor to decide what to send. |
| // if (nai.networkMonitor.isLingering()) { |
| // notifyType = NetworkCallbacks.LOSING; |
| // } else if (nai.networkMonitor.isEvaluating()) { |
| // notifyType = NetworkCallbacks.callCallbackForRequest(request, nai, notifyType); |
| // } |
| callCallbackForRequest(nri, nai, notifyType); |
| } |
| |
| private void sendLegacyNetworkBroadcast(NetworkAgentInfo nai, boolean connected, int type) { |
| // The NetworkInfo we actually send out has no bearing on the real |
| // state of affairs. For example, if the default connection is mobile, |
| // and a request for HIPRI has just gone away, we need to pretend that |
| // HIPRI has just disconnected. So we need to set the type to HIPRI and |
| // the state to DISCONNECTED, even though the network is of type MOBILE |
| // and is still connected. |
| NetworkInfo info = new NetworkInfo(nai.networkInfo); |
| info.setType(type); |
| if (connected) { |
| info.setDetailedState(DetailedState.CONNECTED, null, info.getExtraInfo()); |
| sendConnectedBroadcastDelayed(info, getConnectivityChangeDelay()); |
| } else { |
| info.setDetailedState(DetailedState.DISCONNECTED, null, info.getExtraInfo()); |
| Intent intent = new Intent(ConnectivityManager.CONNECTIVITY_ACTION); |
| intent.putExtra(ConnectivityManager.EXTRA_NETWORK_INFO, info); |
| intent.putExtra(ConnectivityManager.EXTRA_NETWORK_TYPE, info.getType()); |
| if (info.isFailover()) { |
| intent.putExtra(ConnectivityManager.EXTRA_IS_FAILOVER, true); |
| nai.networkInfo.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()); |
| } |
| NetworkAgentInfo newDefaultAgent = null; |
| if (nai.networkRequests.get(mDefaultRequest.requestId) != null) { |
| newDefaultAgent = mNetworkForRequestId.get(mDefaultRequest.requestId); |
| if (newDefaultAgent != null) { |
| intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO, |
| newDefaultAgent.networkInfo); |
| } else { |
| 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); |
| sendStickyBroadcastDelayed(intent, getConnectivityChangeDelay()); |
| if (newDefaultAgent != null) { |
| sendConnectedBroadcastDelayed(newDefaultAgent.networkInfo, |
| getConnectivityChangeDelay()); |
| } |
| } |
| } |
| |
| protected void notifyNetworkCallbacks(NetworkAgentInfo networkAgent, int notifyType) { |
| if (DBG) log("notifyType " + notifyTypeToName(notifyType) + " for " + networkAgent.name()); |
| for (int i = 0; i < networkAgent.networkRequests.size(); i++) { |
| NetworkRequest nr = networkAgent.networkRequests.valueAt(i); |
| NetworkRequestInfo nri = mNetworkRequests.get(nr); |
| if (VDBG) log(" sending notification for " + nr); |
| callCallbackForRequest(nri, networkAgent, notifyType); |
| } |
| } |
| |
| private String notifyTypeToName(int notifyType) { |
| switch (notifyType) { |
| case ConnectivityManager.CALLBACK_PRECHECK: return "PRECHECK"; |
| case ConnectivityManager.CALLBACK_AVAILABLE: return "AVAILABLE"; |
| case ConnectivityManager.CALLBACK_LOSING: return "LOSING"; |
| case ConnectivityManager.CALLBACK_LOST: return "LOST"; |
| case ConnectivityManager.CALLBACK_UNAVAIL: return "UNAVAILABLE"; |
| case ConnectivityManager.CALLBACK_CAP_CHANGED: return "CAP_CHANGED"; |
| case ConnectivityManager.CALLBACK_IP_CHANGED: return "IP_CHANGED"; |
| case ConnectivityManager.CALLBACK_RELEASED: return "RELEASED"; |
| } |
| return "UNKNOWN"; |
| } |
| |
| private LinkProperties getLinkPropertiesForTypeInternal(int networkType) { |
| NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); |
| if (nai != null) { |
| synchronized (nai) { |
| return new LinkProperties(nai.linkProperties); |
| } |
| } |
| return new LinkProperties(); |
| } |
| |
| private NetworkInfo getNetworkInfoForType(int networkType) { |
| if (!mLegacyTypeTracker.isTypeSupported(networkType)) |
| return null; |
| |
| NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); |
| if (nai != null) { |
| NetworkInfo result = new NetworkInfo(nai.networkInfo); |
| result.setType(networkType); |
| return result; |
| } else { |
| NetworkInfo result = new NetworkInfo( |
| networkType, 0, ConnectivityManager.getNetworkTypeName(networkType), ""); |
| result.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED, null, null); |
| result.setIsAvailable(true); |
| return result; |
| } |
| } |
| |
| private NetworkCapabilities getNetworkCapabilitiesForType(int networkType) { |
| NetworkAgentInfo nai = mLegacyTypeTracker.getNetworkForType(networkType); |
| if (nai != null) { |
| synchronized (nai) { |
| return new NetworkCapabilities(nai.networkCapabilities); |
| } |
| } |
| return new NetworkCapabilities(); |
| } |
| |
| @Override |
| public boolean addVpnAddress(String address, int prefixLength) { |
| throwIfLockdownEnabled(); |
| int user = UserHandle.getUserId(Binder.getCallingUid()); |
| synchronized (mVpns) { |
| return mVpns.get(user).addAddress(address, prefixLength); |
| } |
| } |
| |
| @Override |
| public boolean removeVpnAddress(String address, int prefixLength) { |
| throwIfLockdownEnabled(); |
| int user = UserHandle.getUserId(Binder.getCallingUid()); |
| synchronized (mVpns) { |
| return mVpns.get(user).removeAddress(address, prefixLength); |
| } |
| } |
| } |