Examples with NetworkRequest android.net.NetworkRequest used on opensource projects

Example 91 with NetworkRequest

use of android.net.NetworkRequest in project platform_frameworks_base by android.

the class ConnectivityServiceTest method testMMSonWiFi.

@SmallTest
public void testMMSonWiFi() throws Exception {
    // Test bringing up cellular without MMS NetworkRequest gets reaped
    mCellNetworkAgent = new MockNetworkAgent(TRANSPORT_CELLULAR);
    mCellNetworkAgent.addCapability(NET_CAPABILITY_MMS);
    ConditionVariable cv = mCellNetworkAgent.getDisconnectedCV();
    mCellNetworkAgent.connectWithoutInternet();
    waitFor(cv);
    mService.waitForIdle();
    assertEquals(0, mCm.getAllNetworks().length);
    verifyNoNetwork();
    // Test bringing up validated WiFi.
    mWiFiNetworkAgent = new MockNetworkAgent(TRANSPORT_WIFI);
    cv = waitForConnectivityBroadcasts(1);
    mWiFiNetworkAgent.connect(true);
    waitFor(cv);
    verifyActiveNetwork(TRANSPORT_WIFI);
    // Register MMS NetworkRequest
    NetworkRequest.Builder builder = new NetworkRequest.Builder();
    builder.addCapability(NetworkCapabilities.NET_CAPABILITY_MMS);
    final TestNetworkCallback networkCallback = new TestNetworkCallback();
    mCm.requestNetwork(builder.build(), networkCallback);
    // Test bringing up unvalidated cellular with MMS
    mCellNetworkAgent = new MockNetworkAgent(TRANSPORT_CELLULAR);
    mCellNetworkAgent.addCapability(NET_CAPABILITY_MMS);
    mCellNetworkAgent.connectWithoutInternet();
    networkCallback.expectAvailableCallbacks(mCellNetworkAgent);
    verifyActiveNetwork(TRANSPORT_WIFI);
    // Test releasing NetworkRequest disconnects cellular with MMS
    cv = mCellNetworkAgent.getDisconnectedCV();
    mCm.unregisterNetworkCallback(networkCallback);
    waitFor(cv);
    verifyActiveNetwork(TRANSPORT_WIFI);
}

Example 92 with NetworkRequest

use of android.net.NetworkRequest in project platform_frameworks_base by android.

the class ConnectivityServiceTest method testRequestBenchmark.

@SmallTest
public void testRequestBenchmark() throws Exception {
    // TODO: turn this unit test into a real benchmarking test.
    // Benchmarks connecting and switching performance in the presence of a large number of
    // NetworkRequests.
    // 1. File NUM_REQUESTS requests.
    // 2. Have a network connect. Wait for NUM_REQUESTS onAvailable callbacks to fire.
    // 3. Have a new network connect and outscore the previous. Wait for NUM_REQUESTS onLosing
    //    and NUM_REQUESTS onAvailable callbacks to fire.
    // See how long it took.
    final int NUM_REQUESTS = 90;
    final NetworkRequest request = new NetworkRequest.Builder().clearCapabilities().build();
    final NetworkCallback[] callbacks = new NetworkCallback[NUM_REQUESTS];
    final CountDownLatch availableLatch = new CountDownLatch(NUM_REQUESTS);
    final CountDownLatch losingLatch = new CountDownLatch(NUM_REQUESTS);
    for (int i = 0; i < NUM_REQUESTS; i++) {
        callbacks[i] = new NetworkCallback() {

            @Override
            public void onAvailable(Network n) {
                availableLatch.countDown();
            }

            @Override
            public void onLosing(Network n, int t) {
                losingLatch.countDown();
            }
        };
    }
    final int REGISTER_TIME_LIMIT_MS = 180;
    assertTimeLimit("Registering callbacks", REGISTER_TIME_LIMIT_MS, () -> {
        for (NetworkCallback cb : callbacks) {
            mCm.registerNetworkCallback(request, cb);
        }
    });
    final int CONNECT_TIME_LIMIT_MS = 40;
    mCellNetworkAgent = new MockNetworkAgent(TRANSPORT_CELLULAR);
    // Don't request that the network validate, because otherwise connect() will block until
    // the network gets NET_CAPABILITY_VALIDATED, after all the callbacks below have fired,
    // and we won't actually measure anything.
    mCellNetworkAgent.connect(false);
    long onAvailableDispatchingDuration = durationOf(() -> {
        if (!awaitLatch(availableLatch, CONNECT_TIME_LIMIT_MS)) {
            fail(String.format("Only dispatched %d/%d onAvailable callbacks in %dms", NUM_REQUESTS - availableLatch.getCount(), NUM_REQUESTS, CONNECT_TIME_LIMIT_MS));
        }
    });
    Log.d(TAG, String.format("Connect, %d callbacks: %dms, acceptable %dms", NUM_REQUESTS, onAvailableDispatchingDuration, CONNECT_TIME_LIMIT_MS));
    final int SWITCH_TIME_LIMIT_MS = 40;
    mWiFiNetworkAgent = new MockNetworkAgent(TRANSPORT_WIFI);
    // Give wifi a high enough score that we'll linger cell when wifi comes up.
    mWiFiNetworkAgent.adjustScore(40);
    mWiFiNetworkAgent.connect(false);
    long onLostDispatchingDuration = durationOf(() -> {
        if (!awaitLatch(losingLatch, SWITCH_TIME_LIMIT_MS)) {
            fail(String.format("Only dispatched %d/%d onLosing callbacks in %dms", NUM_REQUESTS - losingLatch.getCount(), NUM_REQUESTS, SWITCH_TIME_LIMIT_MS));
        }
    });
    Log.d(TAG, String.format("Linger, %d callbacks: %dms, acceptable %dms", NUM_REQUESTS, onLostDispatchingDuration, SWITCH_TIME_LIMIT_MS));
    final int UNREGISTER_TIME_LIMIT_MS = 10;
    assertTimeLimit("Unregistering callbacks", UNREGISTER_TIME_LIMIT_MS, () -> {
        for (NetworkCallback cb : callbacks) {
            mCm.unregisterNetworkCallback(cb);
        }
    });
}

Example 93 with NetworkRequest

use of android.net.NetworkRequest in project platform_frameworks_base by android.

the class WifiManager method enableNetwork.

/**
     * Allow a previously configured network to be associated with. If
     * <code>attemptConnect</code> is true, an attempt to connect to the selected
     * network is initiated. This may result in the asynchronous delivery
     * of state change events.
     * <p>
     * <b>Note:</b> If an application's target SDK version is
     * {@link android.os.Build.VERSION_CODES#LOLLIPOP} or newer, network
     * communication may not use Wi-Fi even if Wi-Fi is connected; traffic may
     * instead be sent through another network, such as cellular data,
     * Bluetooth tethering, or Ethernet. For example, traffic will never use a
     * Wi-Fi network that does not provide Internet access (e.g. a wireless
     * printer), if another network that does offer Internet access (e.g.
     * cellular data) is available. Applications that need to ensure that their
     * network traffic uses Wi-Fi should use APIs such as
     * {@link Network#bindSocket(java.net.Socket)},
     * {@link Network#openConnection(java.net.URL)}, or
     * {@link ConnectivityManager#bindProcessToNetwork} to do so.
     *
     * Applications are not allowed to enable networks created by other
     * applications.
     *
     * @param netId the ID of the network as returned by {@link #addNetwork} or {@link
     *        #getConfiguredNetworks}.
     * @param attemptConnect The way to select a particular network to connect to is specify
     *        {@code true} for this parameter.
     * @return {@code true} if the operation succeeded
     */
public boolean enableNetwork(int netId, boolean attemptConnect) {
    final boolean pin = attemptConnect && mTargetSdkVersion < Build.VERSION_CODES.LOLLIPOP;
    if (pin) {
        NetworkRequest request = new NetworkRequest.Builder().clearCapabilities().addTransportType(NetworkCapabilities.TRANSPORT_WIFI).build();
        NetworkPinner.pin(mContext, request);
    }
    boolean success;
    try {
        success = mService.enableNetwork(netId, attemptConnect);
    } catch (RemoteException e) {
        throw e.rethrowFromSystemServer();
    }
    if (pin && !success) {
        NetworkPinner.unpin();
    }
    return success;
}

Example 94 with NetworkRequest

use of android.net.NetworkRequest in project android_frameworks_base by crdroidandroid.

the class ConnectivityService method rematchNetworkAndRequests.

// 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 validated 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
//   but turns out to be unneeded.
//
// - If reapUnvalidatedNetworks==REAP, tears down unvalidated
//   networks that have no chance (i.e. even if validated)
//   of becoming the highest scoring network.
//
// 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 newNetwork is the network to be matched against NetworkRequests.
// @param reapUnvalidatedNetworks indicates if an additional pass over all networks should be
//               performed to tear down unvalidated networks that have no chance (i.e. even if
//               validated) of becoming the highest scoring network.
private void rematchNetworkAndRequests(NetworkAgentInfo newNetwork, ReapUnvalidatedNetworks reapUnvalidatedNetworks, long now) {
    if (!newNetwork.everConnected)
        return;
    boolean keep = newNetwork.isVPN();
    boolean isNewDefault = false;
    NetworkAgentInfo oldDefaultNetwork = null;
    final boolean wasBackgroundNetwork = newNetwork.isBackgroundNetwork();
    final int score = newNetwork.getCurrentScore();
    if (VDBG)
        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>();
    ArrayList<NetworkRequestInfo> addedRequests = new ArrayList<NetworkRequestInfo>();
    NetworkCapabilities nc = newNetwork.networkCapabilities;
    if (VDBG)
        log(" network has: " + nc);
    for (NetworkRequestInfo nri : mNetworkRequests.values()) {
        // requests or not, and doesn't affect the network's score.
        if (nri.request.isListen())
            continue;
        final NetworkAgentInfo currentNetwork = mNetworkForRequestId.get(nri.request.requestId);
        final boolean satisfies = newNetwork.satisfies(nri.request);
        if (newNetwork == currentNetwork && satisfies) {
            if (VDBG) {
                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 (satisfies) {
            // this request
            if (VDBG) {
                log("currentScore = " + (currentNetwork != null ? currentNetwork.getCurrentScore() : 0) + ", newScore = " + score);
            }
            if (currentNetwork == null || currentNetwork.getCurrentScore() < score) {
                if (VDBG)
                    log("rematch for " + newNetwork.name());
                if (currentNetwork != null) {
                    if (VDBG)
                        log("   accepting network in place of " + currentNetwork.name());
                    currentNetwork.removeRequest(nri.request.requestId);
                    currentNetwork.lingerRequest(nri.request, now, mLingerDelayMs);
                    affectedNetworks.add(currentNetwork);
                } else {
                    if (VDBG)
                        log("   accepting network in place of null");
                }
                newNetwork.unlingerRequest(nri.request);
                mNetworkForRequestId.put(nri.request.requestId, newNetwork);
                if (!newNetwork.addRequest(nri.request)) {
                    Slog.wtf(TAG, "BUG: " + newNetwork.name() + " already has " + nri.request);
                }
                addedRequests.add(nri);
                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, score);
                if (isDefaultRequest(nri)) {
                    isNewDefault = true;
                    oldDefaultNetwork = currentNetwork;
                    if (currentNetwork != null) {
                        mLingerMonitor.noteLingerDefaultNetwork(currentNetwork, newNetwork);
                    }
                }
            }
        } else if (newNetwork.isSatisfyingRequest(nri.request.requestId)) {
            // longer satisfies "nri" when "currentNetwork" does not equal "newNetwork".
            if (DBG) {
                log("Network " + newNetwork.name() + " stopped satisfying" + " request " + nri.request.requestId);
            }
            newNetwork.removeRequest(nri.request.requestId);
            if (currentNetwork == newNetwork) {
                mNetworkForRequestId.remove(nri.request.requestId);
                sendUpdatedScoreToFactories(nri.request, 0);
            } else {
                Slog.wtf(TAG, "BUG: Removing request " + nri.request.requestId + " from " + newNetwork.name() + " without updating mNetworkForRequestId or factories!");
            }
            // TODO: Technically, sending CALLBACK_LOST here is
            // incorrect if there is a replacement network currently
            // connected that can satisfy nri, which is a request
            // (not a listen). However, the only capability that can both
            // a) be requested and b) change is NET_CAPABILITY_TRUSTED,
            // so this code is only incorrect for a network that loses
            // the TRUSTED capability, which is a rare case.
            callCallbackForRequest(nri, newNetwork, ConnectivityManager.CALLBACK_LOST, 0);
        }
    }
    if (isNewDefault) {
        // Notify system services that this network is up.
        makeDefault(newNetwork);
        // Log 0 -> X and Y -> X default network transitions, where X is the new default.
        logDefaultNetworkEvent(newNetwork, oldDefaultNetwork);
        synchronized (ConnectivityService.this) {
            // to reconnect over the new network
            if (mNetTransitionWakeLock.isHeld()) {
                mHandler.sendMessageDelayed(mHandler.obtainMessage(EVENT_CLEAR_NET_TRANSITION_WAKELOCK, mNetTransitionWakeLockSerialNumber, 0), 1000);
            }
        }
    }
    if (!newNetwork.networkCapabilities.equalRequestableCapabilities(nc)) {
        Slog.wtf(TAG, String.format("BUG: %s changed requestable capabilities during rematch: %s -> %s", nc, newNetwork.networkCapabilities));
    }
    if (newNetwork.getCurrentScore() != score) {
        Slog.wtf(TAG, String.format("BUG: %s changed score during rematch: %d -> %d", score, newNetwork.getCurrentScore()));
    }
    // Second pass: process all listens.
    if (wasBackgroundNetwork != newNetwork.isBackgroundNetwork()) {
        // If the network went from background to foreground or vice versa, we need to update
        // its foreground state. It is safe to do this after rematching the requests because
        // NET_CAPABILITY_FOREGROUND does not affect requests, as is not a requestable
        // capability and does not affect the network's score (see the Slog.wtf call above).
        updateCapabilities(score, newNetwork, newNetwork.networkCapabilities);
    } else {
        processListenRequests(newNetwork, false);
    }
    // before LegacyTypeTracker sends legacy broadcasts
    for (NetworkRequestInfo nri : addedRequests) notifyNetworkCallback(newNetwork, nri);
    // available callback for newNetwork.
    for (NetworkAgentInfo nai : affectedNetworks) {
        updateLingerState(nai, now);
    }
    // Possibly unlinger newNetwork. Unlingering a network does not send any callbacks so it
    // does not need to be done in any particular order.
    updateLingerState(newNetwork, now);
    if (isNewDefault) {
        // the new one connected.
        if (oldDefaultNetwork != null) {
            mLegacyTypeTracker.remove(oldDefaultNetwork.networkInfo.getType(), oldDefaultNetwork, true);
        }
        mDefaultInetConditionPublished = newNetwork.lastValidated ? 100 : 0;
        mLegacyTypeTracker.add(newNetwork.networkInfo.getType(), newNetwork);
        notifyLockdownVpn(newNetwork);
    }
    if (keep) {
        // 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) {
        }
        // This is on top of the multiple intent sequencing referenced in the todo above.
        for (int i = 0; i < newNetwork.numNetworkRequests(); i++) {
            NetworkRequest nr = newNetwork.requestAt(i);
            if (nr.legacyType != TYPE_NONE && nr.isRequest()) {
                // legacy type tracker filters out repeat adds
                mLegacyTypeTracker.add(nr.legacyType, newNetwork);
            }
        }
        // newNetwork to the tracker explicitly (it's a no-op if it has already been added).
        if (newNetwork.isVPN()) {
            mLegacyTypeTracker.add(TYPE_VPN, newNetwork);
        }
    }
    if (reapUnvalidatedNetworks == ReapUnvalidatedNetworks.REAP) {
        for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) {
            if (unneeded(nai, UnneededFor.TEARDOWN)) {
                if (nai.getLingerExpiry() > 0) {
                    // This network has active linger timers and no requests, but is not
                    // lingering. Linger it.
                    //
                    // One way (the only way?) this can happen if this network is unvalidated
                    // and became unneeded due to another network improving its score to the
                    // point where this network will no longer be able to satisfy any requests
                    // even if it validates.
                    updateLingerState(nai, now);
                } else {
                    if (DBG)
                        log("Reaping " + nai.name());
                    teardownUnneededNetwork(nai);
                }
            }
        }
    }
}

Example 95 with NetworkRequest

use of android.net.NetworkRequest in project android_frameworks_base by crdroidandroid.

the class ConnectivityService method createInternetRequestForTransport.

private NetworkRequest createInternetRequestForTransport(int transportType, NetworkRequest.Type type) {
    NetworkCapabilities netCap = new NetworkCapabilities();
    netCap.addCapability(NET_CAPABILITY_INTERNET);
    netCap.addCapability(NET_CAPABILITY_NOT_RESTRICTED);
    if (transportType > -1) {
        netCap.addTransportType(transportType);
    }
    return new NetworkRequest(netCap, TYPE_NONE, nextNetworkRequestId(), type);
}