Merge "Add tether offload traffic to interface stats as well." into oc-mr1-dev (1af850fd) · Commits · e / os / android_frameworks_base

core/java/android/net/ITetheringStatsProvider.aidl

+4 −1

Original line number	Diff line number	Diff line
		@@ -30,7 +30,10 @@ import android.net.NetworkStats;
		*/
		interface ITetheringStatsProvider {
		// Returns cumulative statistics for all tethering sessions since boot, on all upstreams.
		NetworkStats getTetherStats();
		// @code {how} is one of the NetworkStats.STATS_PER_* constants. If {@code how} is
		// {@code STATS_PER_IFACE}, the provider should not include any traffic that is already
		// counted by kernel interface counters.
		NetworkStats getTetherStats(int how);

		// Sets the interface quota for the specified upstream interface. This is defined as the number
		// of bytes, starting from zero and counting from now, after which data should stop being

core/java/android/net/NetworkStats.java

+5 −0

Original line number	Diff line number	Diff line
		@@ -82,6 +82,11 @@ public class NetworkStats implements Parcelable {
		/** {@link #roaming} value where roaming data is accounted. */
		public static final int ROAMING_YES = 1;

		/** Denotes a request for stats at the interface level. */
		public static final int STATS_PER_IFACE = 0;
		/** Denotes a request for stats at the interface and UID level. */
		public static final int STATS_PER_UID = 1;

		// TODO: move fields to "mVariable" notation

		/**

core/java/android/os/INetworkManagementService.aidl

+1 −1

Original line number	Diff line number	Diff line
		@@ -281,7 +281,7 @@ interface INetworkManagementService
		/**
		* Return summary of network statistics all tethering interfaces.
		*/
		NetworkStats getNetworkStatsTethering();
		NetworkStats getNetworkStatsTethering(int how);

		/**
		* Set quota for an interface.

services/core/java/com/android/server/NetworkManagementService.java

+10 −3

Original line number	Diff line number	Diff line
		@@ -34,6 +34,7 @@ import static android.net.NetworkPolicyManager.FIREWALL_RULE_DENY;
		import static android.net.NetworkPolicyManager.FIREWALL_TYPE_BLACKLIST;
		import static android.net.NetworkPolicyManager.FIREWALL_TYPE_WHITELIST;
		import static android.net.NetworkStats.SET_DEFAULT;
		import static android.net.NetworkStats.STATS_PER_UID;
		import static android.net.NetworkStats.TAG_ALL;
		import static android.net.NetworkStats.TAG_NONE;
		import static android.net.NetworkStats.UID_ALL;
		@@ -1863,7 +1864,13 @@ public class NetworkManagementService extends INetworkManagementService.Stub

		private class NetdTetheringStatsProvider extends ITetheringStatsProvider.Stub {
		@Override
		public NetworkStats getTetherStats() {
		public NetworkStats getTetherStats(int how) {
		// We only need to return per-UID stats. Per-device stats are already counted by
		// interface counters.
		if (how != STATS_PER_UID) {
		return new NetworkStats(SystemClock.elapsedRealtime(), 0);
		}

		final NativeDaemonEvent[] events;
		try {
		events = mConnector.executeForList("bandwidth", "gettetherstats");
		@@ -1906,14 +1913,14 @@ public class NetworkManagementService extends INetworkManagementService.Stub
		}

		@Override
		public NetworkStats getNetworkStatsTethering() {
		public NetworkStats getNetworkStatsTethering(int how) {
		mContext.enforceCallingOrSelfPermission(CONNECTIVITY_INTERNAL, TAG);

		final NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 1);
		synchronized (mTetheringStatsProviders) {
		for (ITetheringStatsProvider provider: mTetheringStatsProviders.keySet()) {
		try {
		stats.combineAllValues(provider.getTetherStats());
		stats.combineAllValues(provider.getTetherStats(how));
		} catch (RemoteException e) {
		Log.e(TAG, "Problem reading tethering stats from " +
		mTetheringStatsProviders.get(provider) + ": " + e);

services/core/java/com/android/server/connectivity/tethering/OffloadController.java

+6 −2

Original line number	Diff line number	Diff line
		@@ -17,7 +17,9 @@
		package com.android.server.connectivity.tethering;

		import static android.net.NetworkStats.SET_DEFAULT;
		import static android.net.NetworkStats.STATS_PER_UID;
		import static android.net.NetworkStats.TAG_NONE;
		import static android.net.NetworkStats.UID_ALL;
		import static android.net.TrafficStats.UID_TETHERING;
		import static android.provider.Settings.Global.TETHER_OFFLOAD_DISABLED;

		@@ -202,16 +204,18 @@ public class OffloadController {

		private class OffloadTetheringStatsProvider extends ITetheringStatsProvider.Stub {
		@Override
		public NetworkStats getTetherStats() {
		public NetworkStats getTetherStats(int how) {
		NetworkStats stats = new NetworkStats(SystemClock.elapsedRealtime(), 0);

		// We can't just post to mHandler because we are mostly (but not always) called by
		// NetworkStatsService#performPollLocked, which is (currently) on the same thread as us.
		mHandler.runWithScissors(() -> {
		// We have to report both per-interface and per-UID stats, because offloaded traffic
		// is not seen by kernel interface counters.
		NetworkStats.Entry entry = new NetworkStats.Entry();
		entry.set = SET_DEFAULT;
		entry.tag = TAG_NONE;
		entry.uid = UID_TETHERING;
		entry.uid = (how == STATS_PER_UID) ? UID_TETHERING : UID_ALL;

		updateStatsForCurrentUpstream();