Examples with NetworkAgentInfo com.android.server.connectivity.NetworkAgentInfo used on opensource projects

Example 46 with NetworkAgentInfo

use of com.android.server.connectivity.NetworkAgentInfo in project android_frameworks_base by crdroidandroid.

the class ConnectivityService method rematchAllNetworksAndRequests.

/**
     * Attempt to rematch all Networks with NetworkRequests.  This may result in Networks
     * being disconnected.
     * @param changed If only one Network's score or capabilities have been modified since the last
     *         time this function was called, pass this Network in this argument, otherwise pass
     *         null.
     * @param oldScore 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
     *         this argument, otherwise pass {@code changed.getCurrentScore()} or 0 if
     *         {@code changed} is {@code null}. This is because NetworkCapabilities influence a
     *         network's score.
     */
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.
    final long now = SystemClock.elapsedRealtime();
    if (changed != null && oldScore < changed.getCurrentScore()) {
        rematchNetworkAndRequests(changed, ReapUnvalidatedNetworks.REAP, now);
    } else {
        final NetworkAgentInfo[] nais = mNetworkAgentInfos.values().toArray(new NetworkAgentInfo[mNetworkAgentInfos.size()]);
        // Rematch higher scoring networks first to prevent requests first matching a lower
        // scoring network and then a higher scoring network, which could produce multiple
        // callbacks and inadvertently unlinger networks.
        Arrays.sort(nais);
        for (NetworkAgentInfo nai : nais) {
            rematchNetworkAndRequests(nai, // rematched.
            (nai != nais[nais.length - 1]) ? ReapUnvalidatedNetworks.DONT_REAP : ReapUnvalidatedNetworks.REAP, now);
        }
    }
}

Example 47 with NetworkAgentInfo

use of com.android.server.connectivity.NetworkAgentInfo in project android_frameworks_base by crdroidandroid.

the class ConnectivityService method handleReleaseNetworkRequest.

private void handleReleaseNetworkRequest(NetworkRequest request, int callingUid) {
    final NetworkRequestInfo nri = getNriForAppRequest(request, callingUid, "release NetworkRequest");
    if (nri == null)
        return;
    if (VDBG || (DBG && nri.request.isRequest()))
        log("releasing " + request);
    nri.unlinkDeathRecipient();
    mNetworkRequests.remove(request);
    synchronized (mUidToNetworkRequestCount) {
        int requests = mUidToNetworkRequestCount.get(nri.mUid, 0);
        if (requests < 1) {
            Slog.wtf(TAG, "BUG: too small request count " + requests + " for UID " + nri.mUid);
        } else if (requests == 1) {
            mUidToNetworkRequestCount.removeAt(mUidToNetworkRequestCount.indexOfKey(nri.mUid));
        } else {
            mUidToNetworkRequestCount.put(nri.mUid, requests - 1);
        }
    }
    mNetworkRequestInfoLogs.log("RELEASE " + nri);
    if (nri.request.isRequest()) {
        boolean wasKept = false;
        NetworkAgentInfo nai = mNetworkForRequestId.get(nri.request.requestId);
        if (nai != null) {
            boolean wasBackgroundNetwork = nai.isBackgroundNetwork();
            nai.removeRequest(nri.request.requestId);
            if (VDBG) {
                log(" Removing from current network " + nai.name() + ", leaving " + nai.numNetworkRequests() + " requests.");
            }
            // If there are still lingered requests on this network, don't tear it down,
            // but resume lingering instead.
            updateLingerState(nai, SystemClock.elapsedRealtime());
            if (unneeded(nai, UnneededFor.TEARDOWN)) {
                if (DBG)
                    log("no live requests for " + nai.name() + "; disconnecting");
                teardownUnneededNetwork(nai);
            } else {
                wasKept = true;
            }
            mNetworkForRequestId.remove(nri.request.requestId);
            if (!wasBackgroundNetwork && nai.isBackgroundNetwork()) {
                // Went from foreground to background.
                updateCapabilities(nai.getCurrentScore(), nai, nai.networkCapabilities);
            }
        }
        // network satisfying it, so this loop is wasteful
        for (NetworkAgentInfo otherNai : mNetworkAgentInfos.values()) {
            if (otherNai.isSatisfyingRequest(nri.request.requestId) && otherNai != nai) {
                Slog.wtf(TAG, "Request " + nri.request + " satisfied by " + otherNai.name() + ", but mNetworkAgentInfos says " + (nai != null ? nai.name() : "null"));
            }
        }
        // phantom disconnect for this type.
        if (nri.request.legacyType != TYPE_NONE && nai != null) {
            boolean doRemove = true;
            if (wasKept) {
                // same legacy type - if so, don't remove the nai
                for (int i = 0; i < nai.numNetworkRequests(); i++) {
                    NetworkRequest otherRequest = nai.requestAt(i);
                    if (otherRequest.legacyType == nri.request.legacyType && otherRequest.isRequest()) {
                        if (DBG)
                            log(" still have other legacy request - leaving");
                        doRemove = false;
                    }
                }
            }
            if (doRemove) {
                mLegacyTypeTracker.remove(nri.request.legacyType, nai, false);
            }
        }
        for (NetworkFactoryInfo nfi : mNetworkFactoryInfos.values()) {
            nfi.asyncChannel.sendMessage(android.net.NetworkFactory.CMD_CANCEL_REQUEST, nri.request);
        }
    } else {
        // if this listen request applies and remove it.
        for (NetworkAgentInfo nai : mNetworkAgentInfos.values()) {
            nai.removeRequest(nri.request.requestId);
            if (nri.request.networkCapabilities.hasSignalStrength() && nai.satisfiesImmutableCapabilitiesOf(nri.request)) {
                updateSignalStrengthThresholds(nai, "RELEASE", nri.request);
            }
        }
    }
    callCallbackForRequest(nri, null, ConnectivityManager.CALLBACK_RELEASED, 0);
}

Example 48 with NetworkAgentInfo

use of com.android.server.connectivity.NetworkAgentInfo in project android_frameworks_base by crdroidandroid.

the class ConnectivityService method updateDnses.

private void updateDnses(LinkProperties newLp, LinkProperties oldLp, int netId) {
    if (oldLp != null && newLp.isIdenticalDnses(oldLp)) {
        // no updating necessary
        return;
    }
    Collection<InetAddress> dnses = newLp.getDnsServers();
    if (DBG)
        log("Setting DNS servers for network " + netId + " to " + dnses);
    try {
        mNetd.setDnsConfigurationForNetwork(netId, NetworkUtils.makeStrings(dnses), newLp.getDomains());
    } catch (Exception e) {
        loge("Exception in setDnsConfigurationForNetwork: " + e);
    }
    final NetworkAgentInfo defaultNai = getDefaultNetwork();
    if (defaultNai != null && defaultNai.network.netId == netId) {
        setDefaultDnsSystemProperties(dnses);
    }
    flushVmDnsCache();
}

Example 49 with NetworkAgentInfo

use of com.android.server.connectivity.NetworkAgentInfo in project android_frameworks_base by crdroidandroid.

the class ConnectivityService method handleRegisterNetworkRequest.

private void handleRegisterNetworkRequest(NetworkRequestInfo nri) {
    mNetworkRequests.put(nri.request, nri);
    mNetworkRequestInfoLogs.log("REGISTER " + nri);
    if (nri.request.isListen()) {
        for (NetworkAgentInfo network : mNetworkAgentInfos.values()) {
            if (nri.request.networkCapabilities.hasSignalStrength() && network.satisfiesImmutableCapabilitiesOf(nri.request)) {
                updateSignalStrengthThresholds(network, "REGISTER", nri.request);
            }
        }
    }
    rematchAllNetworksAndRequests(null, 0);
    if (nri.request.isRequest() && mNetworkForRequestId.get(nri.request.requestId) == null) {
        sendUpdatedScoreToFactories(nri.request, 0);
    }
}

Example 50 with NetworkAgentInfo

use of com.android.server.connectivity.NetworkAgentInfo in project android_frameworks_base by crdroidandroid.

the class ConnectivityService method reportNetworkConnectivity.

@Override
public void reportNetworkConnectivity(Network network, boolean hasConnectivity) {
    enforceAccessPermission();
    enforceInternetPermission();
    // TODO: execute this logic on ConnectivityService handler.
    final NetworkAgentInfo nai;
    if (network == null) {
        nai = getDefaultNetwork();
    } else {
        nai = getNetworkAgentInfoForNetwork(network);
    }
    if (nai == null || nai.networkInfo.getState() == NetworkInfo.State.DISCONNECTING || nai.networkInfo.getState() == NetworkInfo.State.DISCONNECTED) {
        return;
    }
    // Revalidate if the app report does not match our current validated state.
    if (hasConnectivity == nai.lastValidated) {
        return;
    }
    final int uid = Binder.getCallingUid();
    if (DBG) {
        log("reportNetworkConnectivity(" + nai.network.netId + ", " + hasConnectivity + ") by " + uid);
    }
    // rematchNetworkAndRequests() which is not meant to work on such networks.
    if (!nai.everConnected) {
        return;
    }
    LinkProperties lp = getLinkProperties(nai);
    if (isNetworkWithLinkPropertiesBlocked(lp, uid, false)) {
        return;
    }
    nai.networkMonitor.sendMessage(NetworkMonitor.CMD_FORCE_REEVALUATION, uid);
}