[IT4.6] Unbundle NMS out from ConnectivityManager
ConnectivityService is no longer to update idle timer to NMS but
send to INetd directly after this change. Replace the API
implementation in ConnectivityManager to refer into
ConnectivityService instead of NetworkManagementService to remove
the dependency between CM and NMS for ConnectivityService mainline.
Bug: 170598012
Test: atest FrameworksNetTests
Change-Id: If0ac9a6427dba5a732a15b5d7ca1351b71b07b7b
diff --git a/framework/src/android/net/ConnectivityManager.java b/framework/src/android/net/ConnectivityManager.java
index c7bb2a7..adab6e3 100644
--- a/framework/src/android/net/ConnectivityManager.java
+++ b/framework/src/android/net/ConnectivityManager.java
@@ -50,7 +50,6 @@
import android.os.Handler;
import android.os.IBinder;
import android.os.INetworkActivityListener;
-import android.os.INetworkManagementService;
import android.os.Looper;
import android.os.Message;
import android.os.Messenger;
@@ -835,7 +834,6 @@
private final Context mContext;
- private INetworkManagementService mNMService;
private INetworkPolicyManager mNPManager;
private final TetheringManager mTetheringManager;
@@ -2211,17 +2209,6 @@
void onNetworkActive();
}
- private INetworkManagementService getNetworkManagementService() {
- synchronized (this) {
- if (mNMService != null) {
- return mNMService;
- }
- IBinder b = ServiceManager.getService(Context.NETWORKMANAGEMENT_SERVICE);
- mNMService = INetworkManagementService.Stub.asInterface(b);
- return mNMService;
- }
- }
-
private final ArrayMap<OnNetworkActiveListener, INetworkActivityListener>
mNetworkActivityListeners = new ArrayMap<>();
@@ -2246,7 +2233,7 @@
};
try {
- getNetworkManagementService().registerNetworkActivityListener(rl);
+ mService.registerNetworkActivityListener(rl);
mNetworkActivityListeners.put(l, rl);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
@@ -2263,7 +2250,7 @@
INetworkActivityListener rl = mNetworkActivityListeners.get(l);
Preconditions.checkArgument(rl != null, "Listener was not registered.");
try {
- getNetworkManagementService().unregisterNetworkActivityListener(rl);
+ mService.registerNetworkActivityListener(rl);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
@@ -2279,7 +2266,7 @@
*/
public boolean isDefaultNetworkActive() {
try {
- return getNetworkManagementService().isNetworkActive();
+ return mService.isDefaultNetworkActive();
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
}
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index 460fa6d..389b579 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -164,6 +164,7 @@
import android.os.PersistableBundle;
import android.os.PowerManager;
import android.os.Process;
+import android.os.RemoteCallbackList;
import android.os.RemoteException;
import android.os.ServiceSpecificException;
import android.os.SystemClock;
@@ -173,6 +174,7 @@
import android.provider.Settings;
import android.telephony.TelephonyManager;
import android.text.TextUtils;
+import android.util.ArrayMap;
import android.util.ArraySet;
import android.util.LocalLog;
import android.util.Log;
@@ -560,6 +562,11 @@
private static final int EVENT_SET_OEM_NETWORK_PREFERENCE = 48;
/**
+ * Used to indicate the system default network becomes active.
+ */
+ private static final int EVENT_REPORT_NETWORK_ACTIVITY = 49;
+
+ /**
* Argument for {@link #EVENT_PROVISIONING_NOTIFICATION} to indicate that the notification
* should be shown.
*/
@@ -1193,7 +1200,7 @@
mUserAllContext.registerReceiver(mIntentReceiver, intentFilter,
null /* broadcastPermission */, mHandler);
- mNetworkActivityTracker = new LegacyNetworkActivityTracker(mContext, mNMS);
+ mNetworkActivityTracker = new LegacyNetworkActivityTracker(mContext, mHandler, mNMS, mNetd);
mSettingsObserver = new SettingsObserver(mContext, mHandler);
registerSettingsCallbacks();
@@ -2405,7 +2412,7 @@
*/
@Override
public void registerNetworkActivityListener(@NonNull INetworkActivityListener l) {
- // TODO: Replace network activity listener registry in ConnectivityManager from NMS to here
+ mNetworkActivityTracker.registerNetworkActivityListener(l);
}
/**
@@ -2413,7 +2420,7 @@
*/
@Override
public void unregisterNetworkActivityListener(@NonNull INetworkActivityListener l) {
- // TODO: Replace network activity listener registry in ConnectivityManager from NMS to here
+ mNetworkActivityTracker.unregisterNetworkActivityListener(l);
}
/**
@@ -2421,8 +2428,7 @@
*/
@Override
public boolean isDefaultNetworkActive() {
- // TODO: Replace isNetworkActive() in NMS.
- return false;
+ return mNetworkActivityTracker.isDefaultNetworkActive();
}
/**
@@ -4448,6 +4454,9 @@
loge("handleMessage.EVENT_SET_OEM_NETWORK_PREFERENCE failed", e);
}
break;
+ case EVENT_REPORT_NETWORK_ACTIVITY:
+ mNetworkActivityTracker.handleReportNetworkActivity();
+ break;
}
}
}
@@ -8637,12 +8646,33 @@
private static final class LegacyNetworkActivityTracker {
private static final int NO_UID = -1;
private final Context mContext;
+ private final INetd mNetd;
private final INetworkManagementService mNMS;
+ private final RemoteCallbackList<INetworkActivityListener> mNetworkActivityListeners =
+ new RemoteCallbackList<>();
+ // Indicate the current system default network activity is active or not.
+ @GuardedBy("mActiveIdleTimers")
+ private boolean mNetworkActive;
+ @GuardedBy("mActiveIdleTimers")
+ private final ArrayMap<String, IdleTimerParams> mActiveIdleTimers = new ArrayMap();
+ private final Handler mHandler;
- LegacyNetworkActivityTracker(@NonNull Context context,
- @NonNull INetworkManagementService nms) {
+ private class IdleTimerParams {
+ public final int timeout;
+ public final int transportType;
+
+ IdleTimerParams(int timeout, int transport) {
+ this.timeout = timeout;
+ this.transportType = transport;
+ }
+ }
+
+ LegacyNetworkActivityTracker(@NonNull Context context, @NonNull Handler handler,
+ @NonNull INetworkManagementService nms, @NonNull INetd netd) {
mContext = context;
mNMS = nms;
+ mNetd = netd;
+ mHandler = handler;
try {
mNMS.registerObserver(mDataActivityObserver);
} catch (RemoteException e) {
@@ -8658,9 +8688,50 @@
long tsNanos, int uid) {
sendDataActivityBroadcast(transportTypeToLegacyType(transportType), active,
tsNanos);
+ synchronized (mActiveIdleTimers) {
+ mNetworkActive = active;
+ // If there are no idle timers, it means that system is not monitoring
+ // activity, so the system default network for those default network
+ // unspecified apps is always considered active.
+ //
+ // TODO: If the mActiveIdleTimers is empty, netd will actually not send
+ // any network activity change event. Whenever this event is received,
+ // the mActiveIdleTimers should be always not empty. The legacy behavior
+ // is no-op. Remove to refer to mNetworkActive only.
+ if (mNetworkActive || mActiveIdleTimers.isEmpty()) {
+ mHandler.sendMessage(
+ mHandler.obtainMessage(EVENT_REPORT_NETWORK_ACTIVITY));
+ }
+ }
}
};
+ // The network activity should only be updated from ConnectivityService handler thread
+ // when mActiveIdleTimers lock is held.
+ @GuardedBy("mActiveIdleTimers")
+ private void reportNetworkActive() {
+ final int length = mNetworkActivityListeners.beginBroadcast();
+ if (DDBG) log("reportNetworkActive, notify " + length + " listeners");
+ try {
+ for (int i = 0; i < length; i++) {
+ try {
+ mNetworkActivityListeners.getBroadcastItem(i).onNetworkActive();
+ } catch (RemoteException | RuntimeException e) {
+ loge("Fail to send network activie to listener " + e);
+ }
+ }
+ } finally {
+ mNetworkActivityListeners.finishBroadcast();
+ }
+ }
+
+ @GuardedBy("mActiveIdleTimers")
+ public void handleReportNetworkActivity() {
+ synchronized (mActiveIdleTimers) {
+ reportNetworkActive();
+ }
+ }
+
// This is deprecated and only to support legacy use cases.
private int transportTypeToLegacyType(int type) {
switch (type) {
@@ -8729,8 +8800,13 @@
if (timeout > 0 && iface != null) {
try {
- // TODO: Access INetd directly instead of NMS
- mNMS.addIdleTimer(iface, timeout, type);
+ synchronized (mActiveIdleTimers) {
+ // Networks start up.
+ mNetworkActive = true;
+ mActiveIdleTimers.put(iface, new IdleTimerParams(timeout, type));
+ mNetd.idletimerAddInterface(iface, timeout, Integer.toString(type));
+ reportNetworkActive();
+ }
} catch (Exception e) {
// You shall not crash!
loge("Exception in setupDataActivityTracking " + e);
@@ -8758,9 +8834,12 @@
try {
updateRadioPowerState(false /* isActive */, type);
- // The call fails silently if no idle timer setup for this interface.
- // TODO: Access INetd directly instead of NMS
- mNMS.removeIdleTimer(iface);
+ synchronized (mActiveIdleTimers) {
+ final IdleTimerParams params = mActiveIdleTimers.remove(iface);
+ // The call fails silently if no idle timer setup for this interface
+ mNetd.idletimerRemoveInterface(iface, params.timeout,
+ Integer.toString(params.transportType));
+ }
} catch (Exception e) {
// You shall not crash!
loge("Exception in removeDataActivityTracking " + e);
@@ -8793,6 +8872,26 @@
logw("Untracked transport type:" + transportType);
}
}
+
+ public boolean isDefaultNetworkActive() {
+ synchronized (mActiveIdleTimers) {
+ // If there are no idle timers, it means that system is not monitoring activity,
+ // so the default network is always considered active.
+ //
+ // TODO : Distinguish between the cases where mActiveIdleTimers is empty because
+ // tracking is disabled (negative idle timer value configured), or no active default
+ // network. In the latter case, this reports active but it should report inactive.
+ return mNetworkActive || mActiveIdleTimers.isEmpty();
+ }
+ }
+
+ public void registerNetworkActivityListener(@NonNull INetworkActivityListener l) {
+ mNetworkActivityListeners.register(l);
+ }
+
+ public void unregisterNetworkActivityListener(@NonNull INetworkActivityListener l) {
+ mNetworkActivityListeners.unregister(l);
+ }
}
/**
diff --git a/tests/net/java/com/android/server/ConnectivityServiceTest.java b/tests/net/java/com/android/server/ConnectivityServiceTest.java
index 182897e..e9c3577 100644
--- a/tests/net/java/com/android/server/ConnectivityServiceTest.java
+++ b/tests/net/java/com/android/server/ConnectivityServiceTest.java
@@ -8205,8 +8205,8 @@
reset(mNetworkManagementService);
mCellNetworkAgent.connect(true);
networkCallback.expectAvailableThenValidatedCallbacks(mCellNetworkAgent);
- verify(mNetworkManagementService, times(1)).addIdleTimer(eq(MOBILE_IFNAME), anyInt(),
- eq(NetworkCapabilities.TRANSPORT_CELLULAR));
+ verify(mMockNetd, times(1)).idletimerAddInterface(eq(MOBILE_IFNAME), anyInt(),
+ eq(Integer.toString(TRANSPORT_CELLULAR)));
mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
final LinkProperties wifiLp = new LinkProperties();
@@ -8214,25 +8214,27 @@
mWiFiNetworkAgent.sendLinkProperties(wifiLp);
// Network switch
- reset(mNetworkManagementService);
mWiFiNetworkAgent.connect(true);
networkCallback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
networkCallback.expectCallback(CallbackEntry.LOSING, mCellNetworkAgent);
networkCallback.expectCapabilitiesWith(NET_CAPABILITY_VALIDATED, mWiFiNetworkAgent);
- verify(mNetworkManagementService, times(1)).addIdleTimer(eq(WIFI_IFNAME), anyInt(),
- eq(NetworkCapabilities.TRANSPORT_WIFI));
- verify(mNetworkManagementService, times(1)).removeIdleTimer(eq(MOBILE_IFNAME));
+ verify(mMockNetd, times(1)).idletimerAddInterface(eq(WIFI_IFNAME), anyInt(),
+ eq(Integer.toString(TRANSPORT_WIFI)));
+ verify(mMockNetd, times(1)).idletimerRemoveInterface(eq(MOBILE_IFNAME), anyInt(),
+ eq(Integer.toString(TRANSPORT_CELLULAR)));
// Disconnect wifi and switch back to cell
- reset(mNetworkManagementService);
+ reset(mMockNetd);
mWiFiNetworkAgent.disconnect();
networkCallback.expectCallback(CallbackEntry.LOST, mWiFiNetworkAgent);
assertNoCallbacks(networkCallback);
- verify(mNetworkManagementService, times(1)).removeIdleTimer(eq(WIFI_IFNAME));
- verify(mNetworkManagementService, times(1)).addIdleTimer(eq(MOBILE_IFNAME), anyInt(),
- eq(NetworkCapabilities.TRANSPORT_CELLULAR));
+ verify(mMockNetd, times(1)).idletimerRemoveInterface(eq(WIFI_IFNAME), anyInt(),
+ eq(Integer.toString(TRANSPORT_WIFI)));
+ verify(mMockNetd, times(1)).idletimerAddInterface(eq(MOBILE_IFNAME), anyInt(),
+ eq(Integer.toString(TRANSPORT_CELLULAR)));
// reconnect wifi
+ reset(mMockNetd);
mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
wifiLp.setInterfaceName(WIFI_IFNAME);
mWiFiNetworkAgent.sendLinkProperties(wifiLp);
@@ -8240,9 +8242,12 @@
networkCallback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
networkCallback.expectCallback(CallbackEntry.LOSING, mCellNetworkAgent);
networkCallback.expectCapabilitiesWith(NET_CAPABILITY_VALIDATED, mWiFiNetworkAgent);
+ verify(mMockNetd, times(1)).idletimerAddInterface(eq(WIFI_IFNAME), anyInt(),
+ eq(Integer.toString(TRANSPORT_WIFI)));
+ verify(mMockNetd, times(1)).idletimerRemoveInterface(eq(MOBILE_IFNAME), anyInt(),
+ eq(Integer.toString(TRANSPORT_CELLULAR)));
// Disconnect cell
- reset(mNetworkManagementService);
reset(mMockNetd);
mCellNetworkAgent.disconnect();
networkCallback.expectCallback(CallbackEntry.LOST, mCellNetworkAgent);
@@ -8250,17 +8255,18 @@
// sent as network being switched. Ensure rule removal for cell will not be triggered
// unexpectedly before network being removed.
waitForIdle();
- verify(mNetworkManagementService, times(0)).removeIdleTimer(eq(MOBILE_IFNAME));
+ verify(mMockNetd, times(0)).idletimerRemoveInterface(eq(MOBILE_IFNAME), anyInt(),
+ eq(Integer.toString(TRANSPORT_CELLULAR)));
verify(mMockNetd, times(1)).networkDestroy(eq(mCellNetworkAgent.getNetwork().netId));
verify(mMockDnsResolver, times(1))
.destroyNetworkCache(eq(mCellNetworkAgent.getNetwork().netId));
// Disconnect wifi
ExpectedBroadcast b = expectConnectivityAction(TYPE_WIFI, DetailedState.DISCONNECTED);
- reset(mNetworkManagementService);
mWiFiNetworkAgent.disconnect();
b.expectBroadcast();
- verify(mNetworkManagementService, times(1)).removeIdleTimer(eq(WIFI_IFNAME));
+ verify(mMockNetd, times(1)).idletimerRemoveInterface(eq(WIFI_IFNAME), anyInt(),
+ eq(Integer.toString(TRANSPORT_WIFI)));
// Clean up
mCm.unregisterNetworkCallback(networkCallback);