Merge "Added a virtual interface for Video Telephony call usage counting" into nyc-mr1-dev

services/core/java/com/android/server/net/NetworkPolicyManagerService.java

@@ -2286,11 +2286,6 @@ public class NetworkPolicyManagerService extends INetworkPolicyManager.Stub {
 
         final NetworkIdentity ident = NetworkIdentity.buildNetworkIdentity(mContext, state);
 
-        // roaming networks are always considered metered
-        if (ident.getRoaming()) {
-            return true;
-        }
-
         final NetworkPolicy policy;
         synchronized (mNetworkPoliciesSecondLock) {
             policy = findPolicyForNetworkNL(ident);
@@ -2300,7 +2295,7 @@ public class NetworkPolicyManagerService extends INetworkPolicyManager.Stub {
             return policy.metered;
         } else {
             final int type = state.networkInfo.getType();
-            if (isNetworkTypeMobile(type) || type == TYPE_WIMAX) {
+            if ((isNetworkTypeMobile(type) && ident.getMetered()) || type == TYPE_WIMAX) {
                 return true;
             }
             return false;

services/core/java/com/android/server/net/NetworkStatsService.java

@@ -31,6 +31,7 @@ import static android.net.NetworkStats.IFACE_ALL;
 import static android.net.NetworkStats.SET_ALL;
 import static android.net.NetworkStats.SET_DEFAULT;
 import static android.net.NetworkStats.SET_FOREGROUND;
+import static android.net.NetworkStats.TAG_ALL;
 import static android.net.NetworkStats.TAG_NONE;
 import static android.net.NetworkStats.UID_ALL;
 import static android.net.NetworkTemplate.buildTemplateMobileWildcard;
@@ -79,6 +80,7 @@ import android.net.INetworkManagementEventObserver;
 import android.net.INetworkStatsService;
 import android.net.INetworkStatsSession;
 import android.net.LinkProperties;
+import android.net.NetworkCapabilities;
 import android.net.NetworkIdentity;
 import android.net.NetworkInfo;
 import android.net.NetworkState;
@@ -178,6 +180,11 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
     private static final String PREFIX_UID = "uid";
     private static final String PREFIX_UID_TAG = "uid_tag";
 
+    /**
+     * Virtual network interface for video telephony. This is for VT data usage counting purpose.
+     */
+    public static final String VT_INTERFACE = "vt_data0";
+
     /**
      * Settings that can be changed externally.
      */
@@ -967,6 +974,23 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
                 if (baseIface != null) {
                     findOrCreateNetworkIdentitySet(mActiveIfaces, baseIface).add(ident);
                     findOrCreateNetworkIdentitySet(mActiveUidIfaces, baseIface).add(ident);
+
+                    // Build a separate virtual interface for VT (Video Telephony) data usage.
+                    // Only do this when IMS is not metered, but VT is metered.
+                    // If IMS is metered, then the IMS network usage has already included VT usage.
+                    // VT is considered always metered in framework's layer. If VT is not metered
+                    // per carrier's policy, modem will report 0 usage for VT calls.
+                    if (state.networkCapabilities.hasCapability(
+                            NetworkCapabilities.NET_CAPABILITY_IMS) && !ident.getMetered()) {
+
+                        // Copy the identify from IMS one but mark it as metered.
+                        NetworkIdentity vtIdent = new NetworkIdentity(ident.getType(),
+                                ident.getSubType(), ident.getSubscriberId(), ident.getNetworkId(),
+                                ident.getRoaming(), true);
+                        findOrCreateNetworkIdentitySet(mActiveIfaces, VT_INTERFACE).add(vtIdent);
+                        findOrCreateNetworkIdentitySet(mActiveUidIfaces, VT_INTERFACE).add(vtIdent);
+                    }
+
                     if (isMobile) {
                         mobileIfaces.add(baseIface);
                     }
@@ -1006,7 +1030,7 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
         // snapshot and record current counters; read UID stats first to
         // avoid over counting dev stats.
         final NetworkStats uidSnapshot = getNetworkStatsUidDetail();
-        final NetworkStats xtSnapshot = mNetworkManager.getNetworkStatsSummaryXt();
+        final NetworkStats xtSnapshot = getNetworkStatsXtAndVt();
         final NetworkStats devSnapshot = mNetworkManager.getNetworkStatsSummaryDev();
 
 
@@ -1311,6 +1335,42 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
         return uidSnapshot;
     }
 
+    /**
+     * Return snapshot of current XT plus VT statistics.
+     */
+    private NetworkStats getNetworkStatsXtAndVt() throws RemoteException {
+        final NetworkStats xtSnapshot = mNetworkManager.getNetworkStatsSummaryXt();
+
+        TelephonyManager tm = (TelephonyManager) mContext.getSystemService(
+                Context.TELEPHONY_SERVICE);
+
+        long usage = tm.getVtDataUsage();
+
+        if (LOGV) Slog.d(TAG, "VT call data usage = " + usage);
+
+        final NetworkStats vtSnapshot = new NetworkStats(SystemClock.elapsedRealtime(), 1);
+
+        final NetworkStats.Entry entry = new NetworkStats.Entry();
+        entry.iface = VT_INTERFACE;
+        entry.uid = -1;
+        entry.set = TAG_ALL;
+        entry.tag = TAG_NONE;
+
+        // Since modem only tell us the total usage instead of each usage for RX and TX,
+        // we need to split it up (though it might not quite accurate). At
+        // least we can make sure the data usage report to the user will still be accurate.
+        entry.rxBytes = usage / 2;
+        entry.rxPackets = 0;
+        entry.txBytes = usage - entry.rxBytes;
+        entry.txPackets = 0;
+        vtSnapshot.combineValues(entry);
+
+        // Merge VT int XT
+        xtSnapshot.combineAllValues(vtSnapshot);
+
+        return xtSnapshot;
+    }
+
     /**
      * Return snapshot of current tethering statistics. Will return empty
      * {@link NetworkStats} if any problems are encountered.

telephony/java/android/telephony/TelephonyManager.java

@@ -5519,5 +5519,24 @@ public class TelephonyManager {
             Log.e(TAG, "Error calling ITelephony#carrierActionSetRadioEnabled", e);
         }
     }
+
+    /**
+     * Get aggregated video call data usage since boot.
+     * Permissions android.Manifest.permission.READ_NETWORK_USAGE_HISTORY is required.
+     * @return total data usage in bytes
+     * @hide
+     */
+    public long getVtDataUsage() {
+
+        try {
+            ITelephony service = getITelephony();
+            if (service != null) {
+                return service.getVtDataUsage();
+            }
+        } catch (RemoteException e) {
+            Log.e(TAG, "Error calling getVtDataUsage", e);
+        }
+        return 0;
+    }
 }
 

telephony/java/com/android/internal/telephony/ITelephony.aidl

@@ -1150,4 +1150,12 @@ interface ITelephony {
      * @hide
      */
     void carrierActionSetRadioEnabled(int subId, boolean enabled);
+
+    /**
+     * Get aggregated video call data usage since boot.
+     * Permissions android.Manifest.permission.READ_NETWORK_USAGE_HISTORY is required.
+     * @return total data usage in bytes
+     * @hide
+     */
+    long getVtDataUsage();
 }