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Adding support for multiple "default" networks

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Updating ConnectivityService foundational support for multiple default
networks by extending mDefaultRequest and mDefaultNetworkNai from single
instances to a HashMap to support more than a single default network.

Bug: 176027457
Bug: 172347841
Test: atest FrameworksNetTests
atest NetworkStackTests
atest FrameworksNetIntegrationTests
atest NetworkStackIntegrationTests
atest CtsNetTestCasesLatestSdk

Change-Id: I2f5fa96c2d21ab883499e82afa74e73f3ca606cd
This commit is contained in:
James Mattis
2020-12-20 11:09:58 -08:00
parent 2685347482
commit e3ef1910a8
2 changed files with 162 additions and 128 deletions
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284
services/core/java/com/android/server/ConnectivityService.java
View File

@@ -739,11 +739,11 @@ public class ConnectivityService extends IConnectivityManager.Stub
}
private void maybeLogBroadcast(NetworkAgentInfo nai, DetailedState state, int type,
boolean isDefaultNetwork) {
boolean isFallbackNetwork) {
if (DBG) {
log("Sending " + state
+ " broadcast for type " + type + " " + nai.toShortString()
+ " isDefaultNetwork=" + isDefaultNetwork);
+ " isFallbackNetwork=" + isFallbackNetwork);
}
}
@@ -762,10 +762,10 @@ public class ConnectivityService extends IConnectivityManager.Stub
list.add(nai);
}
// Send a broadcast if this is the first network of its type or if it's the default.
final boolean isDefaultNetwork = mService.isDefaultNetwork(nai);
if ((list.size() == 1) || isDefaultNetwork) {
maybeLogBroadcast(nai, DetailedState.CONNECTED, type, isDefaultNetwork);
// Send a broadcast if this is the first network of its type or if it's the fallback.
final boolean isFallbackNetwork = mService.isFallbackNetwork(nai);
if ((list.size() == 1) || isFallbackNetwork) {
maybeLogBroadcast(nai, DetailedState.CONNECTED, type, isFallbackNetwork);
mService.sendLegacyNetworkBroadcast(nai, DetailedState.CONNECTED, type);
}
}
@@ -794,7 +794,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
", sending connected broadcast");
final NetworkAgentInfo replacement = list.get(0);
maybeLogBroadcast(replacement, DetailedState.CONNECTED, type,
mService.isDefaultNetwork(replacement));
mService.isFallbackNetwork(replacement));
mService.sendLegacyNetworkBroadcast(replacement, DetailedState.CONNECTED, type);
}
}
@@ -810,14 +810,14 @@ public class ConnectivityService extends IConnectivityManager.Stub
// send out another legacy broadcast - currently only used for suspend/unsuspend
// toggle
public void update(NetworkAgentInfo nai) {
final boolean isDefault = mService.isDefaultNetwork(nai);
final boolean isFallback = mService.isFallbackNetwork(nai);
final DetailedState state = nai.networkInfo.getDetailedState();
for (int type = 0; type < mTypeLists.length; type++) {
final ArrayList<NetworkAgentInfo> list = mTypeLists[type];
final boolean contains = (list != null && list.contains(nai));
final boolean isFirst = contains && (nai == list.get(0));
if (isFirst || contains && isDefault) {
maybeLogBroadcast(nai, state, type, isDefault);
if (isFirst || contains && isFallback) {
maybeLogBroadcast(nai, state, type, isFallback);
mService.sendLegacyNetworkBroadcast(nai, state, type);
}
}
@@ -1021,11 +1021,13 @@ public class ConnectivityService extends IConnectivityManager.Stub
mNetworkRequestCounter = new PerUidCounter(MAX_NETWORK_REQUESTS_PER_UID);
mMetricsLog = logger;
mDefaultRequest = createDefaultInternetRequestForTransport(-1, NetworkRequest.Type.REQUEST);
mNetworkRanker = new NetworkRanker();
NetworkRequestInfo defaultNRI = new NetworkRequestInfo(null, mDefaultRequest, new Binder());
mNetworkRequests.put(mDefaultRequest, defaultNRI);
mNetworkRequestInfoLogs.log("REGISTER " + defaultNRI);
final NetworkRequest fallbackRequest = createDefaultInternetRequestForTransport(
-1, NetworkRequest.Type.REQUEST);
mFallbackRequest = new NetworkRequestInfo(null, fallbackRequest, new Binder());
mNetworkRequests.put(fallbackRequest, mFallbackRequest);
mDefaultNetworkRequests.add(mFallbackRequest);
mNetworkRequestInfoLogs.log("REGISTER " + mFallbackRequest);
mDefaultMobileDataRequest = createDefaultInternetRequestForTransport(
NetworkCapabilities.TRANSPORT_CELLULAR, NetworkRequest.Type.BACKGROUND_REQUEST);
@@ -1364,7 +1366,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
}
private NetworkState getUnfilteredActiveNetworkState(int uid) {
NetworkAgentInfo nai = getDefaultNetwork();
NetworkAgentInfo nai = getFallbackNetwork();
final Network[] networks = getVpnUnderlyingNetworks(uid);
if (networks != null) {
@@ -1497,7 +1499,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
}
}
NetworkAgentInfo nai = getDefaultNetwork();
NetworkAgentInfo nai = getFallbackNetwork();
if (nai == null || isNetworkWithCapabilitiesBlocked(nai.networkCapabilities, uid,
ignoreBlocked)) {
return null;
@@ -1636,7 +1638,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
HashMap<Network, NetworkCapabilities> result = new HashMap<>();
NetworkAgentInfo nai = getDefaultNetwork();
final NetworkAgentInfo nai = getFallbackNetwork();
NetworkCapabilities nc = getNetworkCapabilitiesInternal(nai);
if (nc != null) {
result.put(
@@ -2023,7 +2025,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
// TODO: Move the Dns Event to NetworkMonitor. NetdEventListenerService only allow one
// callback from each caller type. Need to re-factor NetdEventListenerService to allow
// multiple NetworkMonitor registrants.
if (nai != null && nai.satisfies(mDefaultRequest)) {
if (nai != null && nai.satisfies(mFallbackRequest.mRequests.get(0))) {
nai.networkMonitor().notifyDnsResponse(returnCode);
}
}
@@ -2580,12 +2582,12 @@ public class ConnectivityService extends IConnectivityManager.Stub
pw.println();
pw.println();
final NetworkAgentInfo defaultNai = getDefaultNetwork();
final NetworkAgentInfo fallbackNai = getFallbackNetwork();
pw.print("Active default network: ");
if (defaultNai == null) {
if (fallbackNai == null) {
pw.println("none");
} else {
pw.println(defaultNai.network.getNetId());
pw.println(fallbackNai.network.getNetId());
}
pw.println();
@@ -2968,7 +2970,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
final boolean valid = ((testResult & NETWORK_VALIDATION_RESULT_VALID) != 0);
final boolean wasValidated = nai.lastValidated;
final boolean wasDefault = isDefaultNetwork(nai);
final boolean wasFallback = isFallbackNetwork(nai);
if (DBG) {
final String logMsg = !TextUtils.isEmpty(redirectUrl)
@@ -2977,7 +2979,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
log(nai.toShortString() + " validation " + (valid ? "passed" : "failed") + logMsg);
}
if (valid != nai.lastValidated) {
if (wasDefault) {
if (wasFallback) {
mMetricsLog.logDefaultNetworkValidity(valid);
}
final int oldScore = nai.getCurrentScore();
@@ -3353,13 +3355,13 @@ public class ConnectivityService extends IConnectivityManager.Stub
loge("Error connecting NetworkAgent");
mNetworkAgentInfos.remove(nai);
if (nai != null) {
final boolean wasDefault = isDefaultNetwork(nai);
final boolean wasFallback = isFallbackNetwork(nai);
synchronized (mNetworkForNetId) {
mNetworkForNetId.remove(nai.network.getNetId());
}
mNetIdManager.releaseNetId(nai.network.getNetId());
// Just in case.
mLegacyTypeTracker.remove(nai, wasDefault);
mLegacyTypeTracker.remove(nai, wasFallback);
}
}
}
@@ -3398,8 +3400,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
nai.networkInfo.setDetailedState(NetworkInfo.DetailedState.DISCONNECTED,
null, null);
}
final boolean wasDefault = isDefaultNetwork(nai);
if (wasDefault) {
final boolean wasFallback = isFallbackNetwork(nai);
if (wasFallback) {
mDefaultInetConditionPublished = 0;
// Log default network disconnection before required book-keeping.
// Let rematchAllNetworksAndRequests() below record a new default network event
@@ -3441,19 +3443,24 @@ public class ConnectivityService extends IConnectivityManager.Stub
&& currentNetwork.network.getNetId() == nai.network.getNetId()) {
nri.setSatisfier(null, null);
sendUpdatedScoreToFactories(request, null);
if (mFallbackRequest == nri) {
// TODO : make battery stats aware that since 2013 multiple interfaces may be
// active at the same time. For now keep calling this with the fallback
// network, because while incorrect this is the closest to the old (also
// incorrect) behavior.
mNetworkActivityTracker.updateDataActivityTracking(
null /* newNetwork */, nai);
notifyLockdownVpn(nai);
ensureNetworkTransitionWakelock(nai.toShortString());
}
}
}
nai.clearLingerState();
// TODO: this loop, and the mLegacyTypeTracker.remove just below it, seem redundant given
// there's a full rematch right after. Currently, deleting it breaks tests that check for
// the default network disconnecting. Find out why, fix the rematch code, and delete this.
if (nai.isSatisfyingRequest(mDefaultRequest.requestId)) {
mDefaultNetworkNai = null;
mNetworkActivityTracker.updateDataActivityTracking(null /* newNetwork */, nai);
notifyLockdownVpn(nai);
ensureNetworkTransitionWakelock(nai.toShortString());
}
mLegacyTypeTracker.remove(nai, wasDefault);
// TODO: mLegacyTypeTracker.remove seems redundant given there's a full rematch right after.
// Currently, deleting it breaks tests that check for the fallback network disconnecting.
// Find out why, fix the rematch code, and delete this.
mLegacyTypeTracker.remove(nai, wasFallback);
rematchAllNetworksAndRequests();
mLingerMonitor.noteDisconnect(nai);
if (nai.created) {
@@ -4253,7 +4260,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
@Override
public NetworkRequest getDefaultRequest() {
return mDefaultRequest;
return mFallbackRequest.mRequests.get(0);
}
private class InternalHandler extends Handler {
@@ -4499,7 +4506,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
// revalidate the network and generate a ConnectivityDiagnostics ConnectivityReport event.
final NetworkAgentInfo nai;
if (network == null) {
nai = getDefaultNetwork();
nai = getFallbackNetwork();
} else {
nai = getNetworkAgentInfoForNetwork(network);
}
@@ -4518,7 +4525,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
Network network, int uid, boolean hasConnectivity) {
final NetworkAgentInfo nai;
if (network == null) {
nai = getDefaultNetwork();
nai = getFallbackNetwork();
} else {
nai = getNetworkAgentInfoForNetwork(network);
}
@@ -4884,7 +4891,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
// see VpnService.setUnderlyingNetworks()'s javadoc about how to interpret
// the underlyingNetworks list.
if (underlyingNetworks == null) {
NetworkAgentInfo defaultNai = getDefaultNetwork();
final NetworkAgentInfo defaultNai = getFallbackNetwork();
if (defaultNai != null) {
underlyingNetworks = new Network[] { defaultNai.network };
}
@@ -4936,7 +4943,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
}
private Network[] underlyingNetworksOrDefault(Network[] underlyingNetworks) {
final Network defaultNetwork = getNetwork(getDefaultNetwork());
final Network defaultNetwork = getNetwork(getFallbackNetwork());
if (underlyingNetworks == null && defaultNetwork != null) {
// null underlying networks means to track the default.
underlyingNetworks = new Network[] { defaultNetwork };
@@ -5493,6 +5500,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
*/
@VisibleForTesting
protected class NetworkRequestInfo implements IBinder.DeathRecipient {
// The requests to be satisfied in priority order. Non-multilayer requests will only have a
// single NetworkRequest in mRequests.
final List<NetworkRequest> mRequests;
// mSatisfier and mActiveRequest rely on one another therefore set them together.
@@ -6038,11 +6047,13 @@ public class ConnectivityService extends IConnectivityManager.Stub
@GuardedBy("mBlockedAppUids")
private final HashSet<Integer> mBlockedAppUids = new HashSet<>();
// The always-on request for an Internet-capable network that apps without a specific default
// fall back to.
@NonNull
private final NetworkRequest mDefaultRequest;
// The NetworkAgentInfo currently satisfying the default request, if any.
@Nullable
private volatile NetworkAgentInfo mDefaultNetworkNai = null;
private final NetworkRequestInfo mFallbackRequest;
// Collection of NetworkRequestInfo's used for default networks.
@NonNull
private final ArraySet<NetworkRequestInfo> mDefaultNetworkRequests = new ArraySet<>();
// Request used to optionally keep mobile data active even when higher
// priority networks like Wi-Fi are active.
@@ -6055,8 +6066,10 @@ public class ConnectivityService extends IConnectivityManager.Stub
// Request used to optionally keep vehicle internal network always active
private final NetworkRequest mDefaultVehicleRequest;
private NetworkAgentInfo getDefaultNetwork() {
return mDefaultNetworkNai;
// TODO: b/178729499 update this in favor of a method taking in a UID.
// The NetworkAgentInfo currently satisfying the fallback request, if any.
private NetworkAgentInfo getFallbackNetwork() {
return mFallbackRequest.mSatisfier;
}
@Nullable
@@ -6073,8 +6086,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
}
@VisibleForTesting
protected boolean isDefaultNetwork(NetworkAgentInfo nai) {
return nai == getDefaultNetwork();
protected boolean isFallbackNetwork(NetworkAgentInfo nai) {
return nai == getFallbackNetwork();
}
// TODO : remove this method. It's a stopgap measure to help sheperding a number of dependent
@@ -6143,8 +6156,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
LinkProperties lp = new LinkProperties(linkProperties);
// TODO: Instead of passing mDefaultRequest, provide an API to determine whether a Network
// satisfies mDefaultRequest.
// TODO: Instead of passing mFallbackRequest, provide an API to determine whether a Network
// satisfies mFallbackRequest.
final NetworkCapabilities nc = new NetworkCapabilities(networkCapabilities);
final NetworkAgentInfo nai = new NetworkAgentInfo(na,
new Network(mNetIdManager.reserveNetId()), new NetworkInfo(networkInfo), lp, nc,
@@ -6221,7 +6234,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
// for (LinkProperties lp : newLp.getStackedLinks()) {
// updateMtu(lp, null);
// }
if (isDefaultNetwork(networkAgent)) {
if (isFallbackNetwork(networkAgent)) {
updateTcpBufferSizes(newLp.getTcpBufferSizes());
}
@@ -6233,7 +6246,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
// updateDnses will fetch the private DNS configuration from DnsManager.
mDnsManager.updatePrivateDnsStatus(netId, newLp);
if (isDefaultNetwork(networkAgent)) {
if (isFallbackNetwork(networkAgent)) {
handleApplyDefaultProxy(newLp.getHttpProxy());
} else {
updateProxy(newLp, oldLp);
@@ -7184,14 +7197,41 @@ public class ConnectivityService extends IConnectivityManager.Stub
}
}
private void makeDefault(@Nullable final NetworkAgentInfo newNetwork) {
if (DBG) log("Switching to new default network: " + newNetwork);
private void processDefaultNetworkChanges(@NonNull final NetworkReassignment changes) {
boolean isDefaultChanged = false;
for (final NetworkRequestInfo defaultRequestInfo : mDefaultNetworkRequests) {
final NetworkReassignment.RequestReassignment reassignment =
changes.getReassignment(defaultRequestInfo);
if (null == reassignment) {
continue;
}
// reassignment only contains those instances where the satisfying network changed.
isDefaultChanged = true;
// Notify system services of the new default.
makeDefault(defaultRequestInfo, reassignment.mOldNetwork, reassignment.mNewNetwork);
}
mDefaultNetworkNai = newNetwork;
if (isDefaultChanged) {
// Hold a wakelock for a short time to help apps in migrating to a new default.
scheduleReleaseNetworkTransitionWakelock();
}
}
private void makeDefault(@NonNull final NetworkRequestInfo nri,
@Nullable final NetworkAgentInfo oldDefaultNetwork,
@Nullable final NetworkAgentInfo newDefaultNetwork) {
if (DBG) {
log("Switching to new default network for: " + nri + " using " + newDefaultNetwork);
}
try {
if (null != newNetwork) {
mNetd.networkSetDefault(newNetwork.network.getNetId());
// TODO http://b/176191930 update netd calls in follow-up CL for multinetwork changes.
if (mFallbackRequest != nri) {
return;
}
if (null != newDefaultNetwork) {
mNetd.networkSetDefault(newDefaultNetwork.network.getNetId());
} else {
mNetd.networkClearDefault();
}
@@ -7199,16 +7239,41 @@ public class ConnectivityService extends IConnectivityManager.Stub
loge("Exception setting default network :" + e);
}
notifyLockdownVpn(newNetwork);
handleApplyDefaultProxy(null != newNetwork
? newNetwork.linkProperties.getHttpProxy() : null);
updateTcpBufferSizes(null != newNetwork
? newNetwork.linkProperties.getTcpBufferSizes() : null);
if (oldDefaultNetwork != null) {
mLingerMonitor.noteLingerDefaultNetwork(oldDefaultNetwork, newDefaultNetwork);
}
mNetworkActivityTracker.updateDataActivityTracking(newDefaultNetwork, oldDefaultNetwork);
notifyLockdownVpn(newDefaultNetwork);
handleApplyDefaultProxy(null != newDefaultNetwork
? newDefaultNetwork.linkProperties.getHttpProxy() : null);
updateTcpBufferSizes(null != newDefaultNetwork
? newDefaultNetwork.linkProperties.getTcpBufferSizes() : null);
notifyIfacesChangedForNetworkStats();
// Fix up the NetworkCapabilities of any networks that have this network as underlying.
if (newNetwork != null) {
propagateUnderlyingNetworkCapabilities(newNetwork.network);
if (newDefaultNetwork != null) {
propagateUnderlyingNetworkCapabilities(newDefaultNetwork.network);
}
// Log 0 -> X and Y -> X default network transitions, where X is the new default.
final Network network = (newDefaultNetwork != null) ? newDefaultNetwork.network : null;
final int score = (newDefaultNetwork != null) ? newDefaultNetwork.getCurrentScore() : 0;
final boolean validated = newDefaultNetwork != null && newDefaultNetwork.lastValidated;
final LinkProperties lp = (newDefaultNetwork != null)
? newDefaultNetwork.linkProperties : null;
final NetworkCapabilities nc = (newDefaultNetwork != null)
? newDefaultNetwork.networkCapabilities : null;
final Network prevNetwork = (oldDefaultNetwork != null)
? oldDefaultNetwork.network : null;
final int prevScore = (oldDefaultNetwork != null)
? oldDefaultNetwork.getCurrentScore() : 0;
final LinkProperties prevLp = (oldDefaultNetwork != null)
? oldDefaultNetwork.linkProperties : null;
final NetworkCapabilities prevNc = (oldDefaultNetwork != null)
? oldDefaultNetwork.networkCapabilities : null;
mMetricsLog.logDefaultNetworkEvent(network, score, validated, lp, nc,
prevNetwork, prevScore, prevLp, prevNc);
}
private void processListenRequests(@NonNull final NetworkAgentInfo nai) {
@@ -7460,46 +7525,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
now);
}
final NetworkAgentInfo oldDefaultNetwork = getDefaultNetwork();
final NetworkRequestInfo defaultRequestInfo = mNetworkRequests.get(mDefaultRequest);
final NetworkReassignment.RequestReassignment reassignment =
changes.getReassignment(defaultRequestInfo);
final NetworkAgentInfo newDefaultNetwork =
null != reassignment ? reassignment.mNewNetwork : oldDefaultNetwork;
if (oldDefaultNetwork != newDefaultNetwork) {
if (oldDefaultNetwork != null) {
mLingerMonitor.noteLingerDefaultNetwork(oldDefaultNetwork, newDefaultNetwork);
}
mNetworkActivityTracker.updateDataActivityTracking(
newDefaultNetwork, oldDefaultNetwork);
// Notify system services of the new default.
makeDefault(newDefaultNetwork);
// Log 0 -> X and Y -> X default network transitions, where X is the new default.
final Network network = (newDefaultNetwork != null) ? newDefaultNetwork.network : null;
final int score = (newDefaultNetwork != null) ? newDefaultNetwork.getCurrentScore() : 0;
final boolean validated = newDefaultNetwork != null && newDefaultNetwork.lastValidated;
final LinkProperties lp = (newDefaultNetwork != null)
? newDefaultNetwork.linkProperties : null;
final NetworkCapabilities nc = (newDefaultNetwork != null)
? newDefaultNetwork.networkCapabilities : null;
final Network prevNetwork = (oldDefaultNetwork != null)
? oldDefaultNetwork.network : null;
final int prevScore = (oldDefaultNetwork != null)
? oldDefaultNetwork.getCurrentScore() : 0;
final LinkProperties prevLp = (oldDefaultNetwork != null)
? oldDefaultNetwork.linkProperties : null;
final NetworkCapabilities prevNc = (oldDefaultNetwork != null)
? oldDefaultNetwork.networkCapabilities : null;
mMetricsLog.logDefaultNetworkEvent(network, score, validated, lp, nc,
prevNetwork, prevScore, prevLp, prevNc);
// Have a new default network, release the transition wakelock in
scheduleReleaseNetworkTransitionWakelock();
}
// Process default network changes if applicable.
processDefaultNetworkChanges(changes);
// Notify requested networks are available after the default net is switched, but
// before LegacyTypeTracker sends legacy broadcasts
@@ -7552,7 +7579,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
notifyNetworkLosing(nai, now);
}
updateLegacyTypeTrackerAndVpnLockdownForRematch(oldDefaultNetwork, newDefaultNetwork, nais);
updateLegacyTypeTrackerAndVpnLockdownForRematch(changes, nais);
// Tear down all unneeded networks.
for (NetworkAgentInfo nai : mNetworkAgentInfos) {
@@ -7595,29 +7622,36 @@ public class ConnectivityService extends IConnectivityManager.Stub
}
private void updateLegacyTypeTrackerAndVpnLockdownForRematch(
@Nullable final NetworkAgentInfo oldDefaultNetwork,
@Nullable final NetworkAgentInfo newDefaultNetwork,
@NonNull final NetworkReassignment changes,
@NonNull final Collection<NetworkAgentInfo> nais) {
if (oldDefaultNetwork != newDefaultNetwork) {
final NetworkReassignment.RequestReassignment fallbackReassignment =
changes.getReassignment(mFallbackRequest);
final NetworkAgentInfo oldFallbackNetwork =
null != fallbackReassignment ? fallbackReassignment.mOldNetwork : null;
final NetworkAgentInfo newFallbackNetwork =
null != fallbackReassignment ? fallbackReassignment.mNewNetwork : null;
if (oldFallbackNetwork != newFallbackNetwork) {
// Maintain the illusion : since the legacy API only understands one network at a time,
// if the default network changed, apps should see a disconnected broadcast for the
// old default network before they see a connected broadcast for the new one.
if (oldDefaultNetwork != null) {
mLegacyTypeTracker.remove(oldDefaultNetwork.networkInfo.getType(),
oldDefaultNetwork, true);
if (oldFallbackNetwork != null) {
mLegacyTypeTracker.remove(oldFallbackNetwork.networkInfo.getType(),
oldFallbackNetwork, true);
}
if (newDefaultNetwork != null) {
if (newFallbackNetwork != null) {
// The new default network can be newly null if and only if the old default
// network doesn't satisfy the default request any more because it lost a
// capability.
mDefaultInetConditionPublished = newDefaultNetwork.lastValidated ? 100 : 0;
mLegacyTypeTracker.add(newDefaultNetwork.networkInfo.getType(), newDefaultNetwork);
mDefaultInetConditionPublished = newFallbackNetwork.lastValidated ? 100 : 0;
mLegacyTypeTracker.add(
newFallbackNetwork.networkInfo.getType(), newFallbackNetwork);
// If the legacy VPN is connected, notifyLockdownVpn may end up sending a broadcast
// to reflect the NetworkInfo of this new network. This broadcast has to be sent
// after the disconnect broadcasts above, but before the broadcasts sent by the
// legacy type tracker below.
// TODO : refactor this, it's too complex
notifyLockdownVpn(newDefaultNetwork);
notifyLockdownVpn(newFallbackNetwork);
}
}
@@ -7652,7 +7686,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
}
// A VPN generally won't get added to the legacy tracker in the "for (nri)" loop above,
// because usually there are no NetworkRequests it satisfies (e.g., mDefaultRequest
// because usually there are no NetworkRequests it satisfies (e.g., mFallbackRequest
// wants the NOT_VPN capability, so it will never be satisfied by a VPN). So, add the
// newNetwork to the tracker explicitly (it's a no-op if it has already been added).
if (nai.isVPN()) {
@@ -7663,9 +7697,9 @@ public class ConnectivityService extends IConnectivityManager.Stub
private void updateInetCondition(NetworkAgentInfo nai) {
// Don't bother updating until we've graduated to validated at least once.
if (!nai.everValidated) return;
// For now only update icons for default connection.
// For now only update icons for the fallback connection.
// TODO: Update WiFi and cellular icons separately. b/17237507
if (!isDefaultNetwork(nai)) return;
if (!isFallbackNetwork(nai)) return;
int newInetCondition = nai.lastValidated ? 100 : 0;
// Don't repeat publish.
@@ -7933,8 +7967,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
intent.putExtra(ConnectivityManager.EXTRA_EXTRA_INFO, info.getExtraInfo());
}
NetworkAgentInfo newDefaultAgent = null;
if (nai.isSatisfyingRequest(mDefaultRequest.requestId)) {
newDefaultAgent = getDefaultNetwork();
if (nai.isSatisfyingRequest(mFallbackRequest.mRequests.get(0).requestId)) {
newDefaultAgent = getFallbackNetwork();
if (newDefaultAgent != null) {
intent.putExtra(ConnectivityManager.EXTRA_OTHER_NETWORK_INFO,
newDefaultAgent.networkInfo);
@@ -7981,10 +8015,10 @@ public class ConnectivityService extends IConnectivityManager.Stub
*/
private Network[] getDefaultNetworks() {
ensureRunningOnConnectivityServiceThread();
ArrayList<Network> defaultNetworks = new ArrayList<>();
NetworkAgentInfo defaultNetwork = getDefaultNetwork();
final ArrayList<Network> defaultNetworks = new ArrayList<>();
final NetworkAgentInfo fallbackNetwork = getFallbackNetwork();
for (NetworkAgentInfo nai : mNetworkAgentInfos) {
if (nai.everConnected && (nai == defaultNetwork || nai.isVPN())) {
if (nai.everConnected && (nai == fallbackNetwork || nai.isVPN())) {
defaultNetworks.add(nai.network);
}
}

6
tests/net/java/com/android/server/LegacyTypeTrackerTest.kt
View File

@@ -55,7 +55,7 @@ class LegacyTypeTrackerTest {
private val supportedTypes = arrayOf(TYPE_MOBILE, TYPE_WIFI, TYPE_ETHERNET, TYPE_MOBILE_SUPL)
private val mMockService = mock(ConnectivityService::class.java).apply {
doReturn(false).`when`(this).isDefaultNetwork(any())
doReturn(false).`when`(this).isFallbackNetwork(any())
}
private val mTracker = LegacyTypeTracker(mMockService).apply {
supportedTypes.forEach {
@@ -126,11 +126,11 @@ class LegacyTypeTrackerTest {
fun testBroadcastOnDisconnect() {
val mobileNai1 = mock(NetworkAgentInfo::class.java)
val mobileNai2 = mock(NetworkAgentInfo::class.java)
doReturn(false).`when`(mMockService).isDefaultNetwork(mobileNai1)
doReturn(false).`when`(mMockService).isFallbackNetwork(mobileNai1)
mTracker.add(TYPE_MOBILE, mobileNai1)
verify(mMockService).sendLegacyNetworkBroadcast(mobileNai1, CONNECTED, TYPE_MOBILE)
reset(mMockService)
doReturn(false).`when`(mMockService).isDefaultNetwork(mobileNai2)
doReturn(false).`when`(mMockService).isFallbackNetwork(mobileNai2)
mTracker.add(TYPE_MOBILE, mobileNai2)
verify(mMockService, never()).sendLegacyNetworkBroadcast(any(), any(), anyInt())
mTracker.remove(TYPE_MOBILE, mobileNai1, false /* wasDefault */)