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

Example 41 with NetworkState

use of android.net.NetworkState in project android_frameworks_base by AOSPA.

the class NetworkPolicyManagerService method updateNetworkRulesNL.

/**
     * Examine all connected {@link NetworkState}, looking for
     * {@link NetworkPolicy} that need to be enforced. When matches found, set
     * remaining quota based on usage cycle and historical stats.
     */
void updateNetworkRulesNL() {
    if (LOGV)
        Slog.v(TAG, "updateNetworkRulesNL()");
    final NetworkState[] states;
    try {
        states = mConnManager.getAllNetworkState();
    } catch (RemoteException e) {
        // ignored; service lives in system_server
        return;
    }
    // First, generate identities of all connected networks so we can
    // quickly compare them against all defined policies below.
    final ArrayList<Pair<String, NetworkIdentity>> connIdents = new ArrayList<>(states.length);
    final ArraySet<String> connIfaces = new ArraySet<String>(states.length);
    for (NetworkState state : states) {
        if (state.networkInfo != null && state.networkInfo.isConnected()) {
            final NetworkIdentity ident = NetworkIdentity.buildNetworkIdentity(mContext, state);
            final String baseIface = state.linkProperties.getInterfaceName();
            if (baseIface != null) {
                connIdents.add(Pair.create(baseIface, ident));
            }
            // Stacked interfaces are considered to have same identity as
            // their parent network.
            final List<LinkProperties> stackedLinks = state.linkProperties.getStackedLinks();
            for (LinkProperties stackedLink : stackedLinks) {
                final String stackedIface = stackedLink.getInterfaceName();
                if (stackedIface != null) {
                    connIdents.add(Pair.create(stackedIface, ident));
                }
            }
        }
    }
    // Apply policies against all connected interfaces found above
    mNetworkRules.clear();
    final ArrayList<String> ifaceList = Lists.newArrayList();
    for (int i = mNetworkPolicy.size() - 1; i >= 0; i--) {
        final NetworkPolicy policy = mNetworkPolicy.valueAt(i);
        ifaceList.clear();
        for (int j = connIdents.size() - 1; j >= 0; j--) {
            final Pair<String, NetworkIdentity> ident = connIdents.get(j);
            if (policy.template.matches(ident.second)) {
                ifaceList.add(ident.first);
            }
        }
        if (ifaceList.size() > 0) {
            final String[] ifaces = ifaceList.toArray(new String[ifaceList.size()]);
            mNetworkRules.put(policy, ifaces);
        }
    }
    long lowestRule = Long.MAX_VALUE;
    final ArraySet<String> newMeteredIfaces = new ArraySet<String>(states.length);
    // apply each policy that we found ifaces for; compute remaining data
    // based on current cycle and historical stats, and push to kernel.
    final long currentTime = currentTimeMillis();
    for (int i = mNetworkRules.size() - 1; i >= 0; i--) {
        final NetworkPolicy policy = mNetworkRules.keyAt(i);
        final String[] ifaces = mNetworkRules.valueAt(i);
        final long start;
        final long totalBytes;
        if (policy.hasCycle()) {
            start = computeLastCycleBoundary(currentTime, policy);
            totalBytes = getTotalBytes(policy.template, start, currentTime);
        } else {
            start = Long.MAX_VALUE;
            totalBytes = 0;
        }
        if (LOGD) {
            Slog.d(TAG, "applying policy " + policy + " to ifaces " + Arrays.toString(ifaces));
        }
        final boolean hasWarning = policy.warningBytes != LIMIT_DISABLED;
        final boolean hasLimit = policy.limitBytes != LIMIT_DISABLED;
        if (hasLimit || policy.metered) {
            final long quotaBytes;
            if (!hasLimit) {
                // metered network, but no policy limit; we still need to
                // restrict apps, so push really high quota.
                quotaBytes = Long.MAX_VALUE;
            } else if (policy.lastLimitSnooze >= start) {
                // snoozing past quota, but we still need to restrict apps,
                // so push really high quota.
                quotaBytes = Long.MAX_VALUE;
            } else {
                // remaining "quota" bytes are based on total usage in
                // current cycle. kernel doesn't like 0-byte rules, so we
                // set 1-byte quota and disable the radio later.
                quotaBytes = Math.max(1, policy.limitBytes - totalBytes);
            }
            if (ifaces.length > 1) {
                // TODO: switch to shared quota once NMS supports
                Slog.w(TAG, "shared quota unsupported; generating rule for each iface");
            }
            for (String iface : ifaces) {
                // long quotaBytes split up into two ints to fit in message
                mHandler.obtainMessage(MSG_UPDATE_INTERFACE_QUOTA, (int) (quotaBytes >> 32), (int) (quotaBytes & 0xFFFFFFFF), iface).sendToTarget();
                newMeteredIfaces.add(iface);
            }
        }
        // keep track of lowest warning or limit of active policies
        if (hasWarning && policy.warningBytes < lowestRule) {
            lowestRule = policy.warningBytes;
        }
        if (hasLimit && policy.limitBytes < lowestRule) {
            lowestRule = policy.limitBytes;
        }
    }
    for (int i = connIfaces.size() - 1; i >= 0; i--) {
        String iface = connIfaces.valueAt(i);
        // long quotaBytes split up into two ints to fit in message
        mHandler.obtainMessage(MSG_UPDATE_INTERFACE_QUOTA, (int) (Long.MAX_VALUE >> 32), (int) (Long.MAX_VALUE & 0xFFFFFFFF), iface).sendToTarget();
        newMeteredIfaces.add(iface);
    }
    mHandler.obtainMessage(MSG_ADVISE_PERSIST_THRESHOLD, lowestRule).sendToTarget();
    // remove quota on any trailing interfaces
    for (int i = mMeteredIfaces.size() - 1; i >= 0; i--) {
        final String iface = mMeteredIfaces.valueAt(i);
        if (!newMeteredIfaces.contains(iface)) {
            mHandler.obtainMessage(MSG_REMOVE_INTERFACE_QUOTA, iface).sendToTarget();
        }
    }
    mMeteredIfaces = newMeteredIfaces;
    final String[] meteredIfaces = mMeteredIfaces.toArray(new String[mMeteredIfaces.size()]);
    mHandler.obtainMessage(MSG_METERED_IFACES_CHANGED, meteredIfaces).sendToTarget();
}

Example 42 with NetworkState

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

the class ConnectivityService method getActiveNetworkInfo.

/**
     * 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();
    final NetworkState state = getUnfilteredActiveNetworkState(uid);
    filterNetworkStateForUid(state, uid, false);
    maybeLogBlockedNetworkInfo(state.networkInfo, uid);
    return state.networkInfo;
}

Example 43 with NetworkState

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

the class ConnectivityService method getActiveNetworkInfoUnfiltered.

// Public because it's used by mLockdownTracker.
public NetworkInfo getActiveNetworkInfoUnfiltered() {
    enforceAccessPermission();
    final int uid = Binder.getCallingUid();
    NetworkState state = getUnfilteredActiveNetworkState(uid);
    return state.networkInfo;
}

Example 44 with NetworkState

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

the class NetworkPolicyManagerServiceTest method testOverWarningLimitNotification.

@Suppress
public void testOverWarningLimitNotification() throws Exception {
    NetworkState[] state = null;
    NetworkStats stats = null;
    Future<Void> future;
    Future<String> tagFuture;
    final long TIME_FEB_15 = 1171497600000L;
    final long TIME_MAR_10 = 1173484800000L;
    final int CYCLE_DAY = 15;
    setCurrentTimeMillis(TIME_MAR_10);
    // assign wifi policy
    state = new NetworkState[] {};
    stats = new NetworkStats(getElapsedRealtime(), 1).addIfaceValues(TEST_IFACE, 0L, 0L, 0L, 0L);
    {
        expectCurrentTime();
        expect(mConnManager.getAllNetworkState()).andReturn(state).atLeastOnce();
        expect(mStatsService.getNetworkTotalBytes(sTemplateWifi, TIME_FEB_15, currentTimeMillis())).andReturn(stats.getTotalBytes()).atLeastOnce();
        expectPolicyDataEnable(TYPE_WIFI, true);
        expectClearNotifications();
        expectAdvisePersistThreshold();
        future = expectMeteredIfacesChanged();
        replay();
        setNetworkPolicies(new NetworkPolicy(sTemplateWifi, CYCLE_DAY, TIMEZONE_UTC, 1 * MB_IN_BYTES, 2 * MB_IN_BYTES, false));
        future.get();
        verifyAndReset();
    }
    // bring up wifi network
    incrementCurrentTime(MINUTE_IN_MILLIS);
    state = new NetworkState[] { buildWifi() };
    stats = new NetworkStats(getElapsedRealtime(), 1).addIfaceValues(TEST_IFACE, 0L, 0L, 0L, 0L);
    {
        expectCurrentTime();
        expect(mConnManager.getAllNetworkState()).andReturn(state).atLeastOnce();
        expect(mStatsService.getNetworkTotalBytes(sTemplateWifi, TIME_FEB_15, currentTimeMillis())).andReturn(stats.getTotalBytes()).atLeastOnce();
        expectPolicyDataEnable(TYPE_WIFI, true);
        expectRemoveInterfaceQuota(TEST_IFACE);
        expectSetInterfaceQuota(TEST_IFACE, 2 * MB_IN_BYTES);
        expectClearNotifications();
        expectAdvisePersistThreshold();
        future = expectMeteredIfacesChanged(TEST_IFACE);
        replay();
        mServiceContext.sendBroadcast(new Intent(CONNECTIVITY_ACTION));
        future.get();
        verifyAndReset();
    }
    // go over warning, which should kick notification
    incrementCurrentTime(MINUTE_IN_MILLIS);
    stats = new NetworkStats(getElapsedRealtime(), 1).addIfaceValues(TEST_IFACE, 1536 * KB_IN_BYTES, 15L, 0L, 0L);
    {
        expectCurrentTime();
        expect(mStatsService.getNetworkTotalBytes(sTemplateWifi, TIME_FEB_15, currentTimeMillis())).andReturn(stats.getTotalBytes()).atLeastOnce();
        expectPolicyDataEnable(TYPE_WIFI, true);
        expectForceUpdate();
        expectClearNotifications();
        tagFuture = expectEnqueueNotification();
        replay();
        mNetworkObserver.limitReached(null, TEST_IFACE);
        assertNotificationType(TYPE_WARNING, tagFuture.get());
        verifyAndReset();
    }
    // go over limit, which should kick notification and dialog
    incrementCurrentTime(MINUTE_IN_MILLIS);
    stats = new NetworkStats(getElapsedRealtime(), 1).addIfaceValues(TEST_IFACE, 5 * MB_IN_BYTES, 512L, 0L, 0L);
    {
        expectCurrentTime();
        expect(mStatsService.getNetworkTotalBytes(sTemplateWifi, TIME_FEB_15, currentTimeMillis())).andReturn(stats.getTotalBytes()).atLeastOnce();
        expectPolicyDataEnable(TYPE_WIFI, false);
        expectForceUpdate();
        expectClearNotifications();
        tagFuture = expectEnqueueNotification();
        replay();
        mNetworkObserver.limitReached(null, TEST_IFACE);
        assertNotificationType(TYPE_LIMIT, tagFuture.get());
        verifyAndReset();
    }
    // now snooze policy, which should remove quota
    incrementCurrentTime(MINUTE_IN_MILLIS);
    {
        expectCurrentTime();
        expect(mConnManager.getAllNetworkState()).andReturn(state).atLeastOnce();
        expect(mStatsService.getNetworkTotalBytes(sTemplateWifi, TIME_FEB_15, currentTimeMillis())).andReturn(stats.getTotalBytes()).atLeastOnce();
        expectPolicyDataEnable(TYPE_WIFI, true);
        // snoozed interface still has high quota so background data is
        // still restricted.
        expectRemoveInterfaceQuota(TEST_IFACE);
        expectSetInterfaceQuota(TEST_IFACE, Long.MAX_VALUE);
        expectAdvisePersistThreshold();
        expectMeteredIfacesChanged(TEST_IFACE);
        future = expectClearNotifications();
        tagFuture = expectEnqueueNotification();
        replay();
        mService.snoozeLimit(sTemplateWifi);
        assertNotificationType(TYPE_LIMIT_SNOOZED, tagFuture.get());
        future.get();
        verifyAndReset();
    }
}

Example 45 with NetworkState

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

the class NetworkPolicyManagerServiceTest method testMeteredNetworkWithoutLimit.

@Suppress
public void testMeteredNetworkWithoutLimit() throws Exception {
    NetworkState[] state = null;
    NetworkStats stats = null;
    Future<Void> future;
    Future<String> tagFuture;
    final long TIME_FEB_15 = 1171497600000L;
    final long TIME_MAR_10 = 1173484800000L;
    final int CYCLE_DAY = 15;
    setCurrentTimeMillis(TIME_MAR_10);
    // bring up wifi network with metered policy
    state = new NetworkState[] { buildWifi() };
    stats = new NetworkStats(getElapsedRealtime(), 1).addIfaceValues(TEST_IFACE, 0L, 0L, 0L, 0L);
    {
        expectCurrentTime();
        expect(mConnManager.getAllNetworkState()).andReturn(state).atLeastOnce();
        expect(mStatsService.getNetworkTotalBytes(sTemplateWifi, TIME_FEB_15, currentTimeMillis())).andReturn(stats.getTotalBytes()).atLeastOnce();
        expectPolicyDataEnable(TYPE_WIFI, true);
        expectRemoveInterfaceQuota(TEST_IFACE);
        expectSetInterfaceQuota(TEST_IFACE, Long.MAX_VALUE);
        expectClearNotifications();
        expectAdvisePersistThreshold();
        future = expectMeteredIfacesChanged(TEST_IFACE);
        replay();
        setNetworkPolicies(new NetworkPolicy(sTemplateWifi, CYCLE_DAY, TIMEZONE_UTC, WARNING_DISABLED, LIMIT_DISABLED, true));
        future.get();
        verifyAndReset();
    }
}