Revert "Addressing comments for http://ag/7700679." (25f881d1) · Commits · e / os / android_frameworks_base

core/java/android/net/NetworkStats.java

+5 −9

Original line number	Diff line number	Diff line
		@@ -1300,8 +1300,7 @@ public class NetworkStats implements Parcelable {
		}

		final Entry tmpEntry = new Entry();
		final int origSize = size;
		for (int i = 0; i < origSize; i++) {
		for (int i = 0; i < size; i++) {
		if (!Objects.equals(iface[i], tunIface)) {
		// Consider only entries that go onto the VPN interface.
		continue;
		@@ -1317,9 +1316,8 @@ public class NetworkStats implements Parcelable {
		tmpEntry.roaming = roaming[i];
		tmpEntry.defaultNetwork = defaultNetwork[i];

		// In a first pass, compute this entry's total share of data across all
		// underlyingIfaces. This is computed on the basis of the share of this entry's usage
		// over tunIface.
		// In a first pass, compute each UID's total share of data across all underlyingIfaces.
		// This is computed on the basis of the share of each UID's usage over tunIface.
		// TODO: Consider refactoring first pass into a separate helper method.
		long totalRxBytes = 0;
		if (tunIfaceTotal.rxBytes > 0) {
		@@ -1396,11 +1394,9 @@ public class NetworkStats implements Parcelable {
		* perInterfaceTotal[j].operations
		/ underlyingIfacesTotal.operations;
		}
		// tmpEntry now contains the migrated data of the i-th entry for the j-th underlying
		// interface. Add that data usage to this object.

		combineValues(tmpEntry);
		if (tag[i] == TAG_NONE) {
		// Add the migrated data to moved so it is deducted from the VPN app later.
		moved[j].add(tmpEntry);
		// Add debug info
		tmpEntry.set = SET_DBG_VPN_IN;
		@@ -1416,8 +1412,8 @@ public class NetworkStats implements Parcelable {
		@NonNull String[] underlyingIfaces,
		@NonNull Entry[] moved) {
		for (int i = 0; i < underlyingIfaces.length; i++) {
		moved[i].uid = tunUid;
		// Add debug info
		moved[i].uid = tunUid;
		moved[i].set = SET_DBG_VPN_OUT;
		moved[i].tag = TAG_NONE;
		moved[i].iface = underlyingIfaces[i];

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

+2 −2

Original line number	Diff line number	Diff line
		@@ -4396,7 +4396,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
		// the underlyingNetworks list.
		if (underlyingNetworks == null) {
		NetworkAgentInfo defaultNai = getDefaultNetwork();
		if (defaultNai != null) {
		if (defaultNai != null && defaultNai.linkProperties != null) {
		underlyingNetworks = new Network[] { defaultNai.network };
		}
		}
		@@ -4404,7 +4404,7 @@ public class ConnectivityService extends IConnectivityManager.Stub
		List<String> interfaces = new ArrayList<>();
		for (Network network : underlyingNetworks) {
		LinkProperties lp = getLinkProperties(network);
		if (lp != null && !TextUtils.isEmpty(lp.getInterfaceName())) {
		if (lp != null) {
		interfaces.add(lp.getInterfaceName());
		}
		}

tests/net/java/com/android/server/net/NetworkStatsServiceTest.java

+24 −91

Original line number	Diff line number	Diff line
		@@ -930,65 +930,6 @@ public class NetworkStatsServiceTest {
		assertUidTotal(sTemplateImsi1, UID_TETHERING, 1920L, 14L, 384L, 2L, 0);
		}

		@Test
		public void vpnRewriteTrafficThroughItself() throws Exception {
		// WiFi network is connected and VPN is using WiFi (which has TEST_IFACE).
		expectDefaultSettings();
		NetworkState[] networkStates = new NetworkState[] {buildWifiState(), buildVpnState()};
		VpnInfo[] vpnInfos = new VpnInfo[] {createVpnInfo(new String[] {TEST_IFACE})};
		expectNetworkStatsUidDetail(buildEmptyStats());
		expectBandwidthControlCheck();

		mService.forceUpdateIfaces(
		new Network[] {WIFI_NETWORK, VPN_NETWORK},
		vpnInfos,
		networkStates,
		getActiveIface(networkStates));
		// create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption
		// overhead per packet):
		//
		// 1000 bytes (100 packets) were sent, and 2000 bytes (200 packets) were received by UID_RED
		// over VPN.
		// 500 bytes (50 packets) were sent, and 1000 bytes (100 packets) were received by UID_BLUE
		// over VPN.
		//
		// VPN UID rewrites packets read from TUN back to TUN, plus some of its own traffic
		// (100 bytes).
		incrementCurrentTime(HOUR_IN_MILLIS);
		expectNetworkStatsUidDetail(new NetworkStats(getElapsedRealtime(), 5)
		.addValues(TUN_IFACE, UID_RED, SET_DEFAULT, TAG_NONE, 2000L, 200L, 1000L, 100L, 1L)
		.addValues(TUN_IFACE, UID_BLUE, SET_DEFAULT, TAG_NONE, 1000L, 100L, 500L, 50L, 1L)
		// VPN rewrites all the packets read from TUN + 100 additional bytes of VPN's
		// own traffic.
		.addValues(TUN_IFACE, UID_VPN, SET_DEFAULT, TAG_NONE, 0L, 0L, 1600L, 160L, 2L)
		// VPN sent 1760 bytes over WiFi in foreground (SET_FOREGROUND) i.e. 1600
		// bytes (160 packets) + 1 byte/packet overhead (=160 bytes).
		.addValues(TEST_IFACE, UID_VPN, SET_FOREGROUND, TAG_NONE, 0L, 0L, 1760L, 176L, 1L)
		// VPN received 3300 bytes over WiFi in background (SET_DEFAULT) i.e. 3000 bytes
		// (300 packets) + 1 byte/packet encryption overhead (=300 bytes).
		.addValues(TEST_IFACE, UID_VPN, SET_DEFAULT, TAG_NONE, 3300L, 300L, 0L, 0L, 1L));

		forcePollAndWaitForIdle();

		// Verify increased TUN usage by UID_VPN does not get attributed to other apps.
		NetworkStats tunStats =
		mService.getDetailedUidStats(new String[] {TUN_IFACE});
		assertValues(
		tunStats, TUN_IFACE, UID_RED, SET_ALL, TAG_NONE, METERED_ALL, ROAMING_ALL,
		DEFAULT_NETWORK_ALL, 2000L, 200L, 1000L, 100L, 1);
		assertValues(
		tunStats, TUN_IFACE, UID_BLUE, SET_ALL, TAG_NONE, METERED_ALL, ROAMING_ALL,
		DEFAULT_NETWORK_ALL, 1000L, 100L, 500L, 50L, 1);
		assertValues(
		tunStats, TUN_IFACE, UID_VPN, SET_ALL, TAG_NONE, METERED_ALL, ROAMING_ALL,
		DEFAULT_NETWORK_ALL, 0L, 0L, 1600L, 160L, 2);

		// Verify correct attribution over WiFi.
		assertUidTotal(sTemplateWifi, UID_RED, 2000L, 200L, 1000L, 100L, 1);
		assertUidTotal(sTemplateWifi, UID_BLUE, 1000L, 100L, 500L, 50L, 1);
		assertUidTotal(sTemplateWifi, UID_VPN, 300L, 0L, 260L, 26L, 2);
		}

		@Test
		public void vpnWithOneUnderlyingIface() throws Exception {
		// WiFi network is connected and VPN is using WiFi (which has TEST_IFACE).
		@@ -1005,29 +946,25 @@ public class NetworkStatsServiceTest {
		getActiveIface(networkStates));
		// create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption
		// overhead per packet):
		// 1000 bytes (100 packets) were sent, and 2000 bytes (200 packets) were received by UID_RED
		// over VPN.
		// 500 bytes (50 packets) were sent, and 1000 bytes (100 packets) were received by UID_BLUE
		// over VPN.
		// VPN sent 1650 bytes (150 packets), and received 3300 (300 packets) over WiFi.
		// Of 1650 bytes sent over WiFi, expect 1000 bytes attributed to UID_RED, 500 bytes
		// attributed to UID_BLUE, and 150 bytes attributed to UID_VPN.
		// Of 3300 bytes received over WiFi, expect 2000 bytes attributed to UID_RED, 1000 bytes
		// attributed to UID_BLUE, and 300 bytes attributed to UID_VPN.
		// 1000 bytes (100 packets) were sent/received by UID_RED over VPN.
		// 500 bytes (50 packets) were sent/received by UID_BLUE over VPN.
		// VPN sent/received 1650 bytes (150 packets) over WiFi.
		// Of 1650 bytes over WiFi, expect 1000 bytes attributed to UID_RED, 500 bytes attributed to
		// UID_BLUE, and 150 bytes attributed to UID_VPN for both rx/tx traffic.
		incrementCurrentTime(HOUR_IN_MILLIS);
		expectNetworkStatsUidDetail(new NetworkStats(getElapsedRealtime(), 3)
		.addValues(TUN_IFACE, UID_RED, SET_DEFAULT, TAG_NONE, 2000L, 200L, 1000L, 100L, 1L)
		.addValues(TUN_IFACE, UID_BLUE, SET_DEFAULT, TAG_NONE, 1000L, 100L, 500L, 50L, 1L)
		// VPN received 3300 bytes over WiFi in background (SET_DEFAULT).
		.addValues(TEST_IFACE, UID_VPN, SET_DEFAULT, TAG_NONE, 3300L, 300L, 0L, 0L, 1L)
		.addValues(TUN_IFACE, UID_RED, SET_DEFAULT, TAG_NONE, 1000L, 100L, 1000L, 100L, 1L)
		.addValues(TUN_IFACE, UID_BLUE, SET_DEFAULT, TAG_NONE, 500L, 50L, 500L, 50L, 1L)
		// VPN received 1650 bytes over WiFi in background (SET_DEFAULT).
		.addValues(TEST_IFACE, UID_VPN, SET_DEFAULT, TAG_NONE, 1650L, 150L, 0L, 0L, 1L)
		// VPN sent 1650 bytes over WiFi in foreground (SET_FOREGROUND).
		.addValues(TEST_IFACE, UID_VPN, SET_FOREGROUND, TAG_NONE, 0L, 0L, 1650L, 150L, 1L));

		forcePollAndWaitForIdle();

		assertUidTotal(sTemplateWifi, UID_RED, 2000L, 200L, 1000L, 100L, 1);
		assertUidTotal(sTemplateWifi, UID_BLUE, 1000L, 100L, 500L, 50L, 1);
		assertUidTotal(sTemplateWifi, UID_VPN, 300L, 0L, 150L, 0L, 2);
		assertUidTotal(sTemplateWifi, UID_RED, 1000L, 100L, 1000L, 100L, 1);
		assertUidTotal(sTemplateWifi, UID_BLUE, 500L, 50L, 500L, 50L, 1);
		assertUidTotal(sTemplateWifi, UID_VPN, 150L, 0L, 150L, 0L, 2);
		}

		@Test
		@@ -1131,28 +1068,24 @@ public class NetworkStatsServiceTest {
		getActiveIface(networkStates));
		// create some traffic (assume 10 bytes of MTU for VPN interface and 1 byte encryption
		// overhead per packet):
		// 1000 bytes (100 packets) were sent, and 500 bytes (50 packets) received by UID_RED over
		// VPN.
		// VPN sent 660 bytes (60 packets) over WiFi and 440 bytes (40 packets) over Cell.
		// And, it received 330 bytes (30 packets) over WiFi and 220 bytes (20 packets) over Cell.
		// For UID_RED, expect 600 bytes attributed over WiFi and 400 bytes over Cell for sent (tx)
		// traffic. For received (rx) traffic, expect 300 bytes over WiFi and 200 bytes over Cell.
		//
		// For UID_VPN, expect 60 bytes attributed over WiFi and 40 bytes over Cell for tx traffic.
		// And, 30 bytes over WiFi and 20 bytes over Cell for rx traffic.
		// 1000 bytes (100 packets) were sent/received by UID_RED over VPN.
		// VPN sent/received 660 bytes (60 packets) over WiFi and 440 bytes (40 packets) over Cell.
		// For UID_RED, expect 600 bytes attributed over WiFi and 400 bytes over Cell for both
		// rx/tx.
		// For UID_VPN, expect 60 bytes attributed over WiFi and 40 bytes over Cell for both rx/tx.
		incrementCurrentTime(HOUR_IN_MILLIS);
		expectNetworkStatsUidDetail(new NetworkStats(getElapsedRealtime(), 3)
		.addValues(TUN_IFACE, UID_RED, SET_DEFAULT, TAG_NONE, 500L, 50L, 1000L, 100L, 2L)
		.addValues(TEST_IFACE, UID_VPN, SET_DEFAULT, TAG_NONE, 330L, 30L, 660L, 60L, 1L)
		.addValues(TEST_IFACE2, UID_VPN, SET_DEFAULT, TAG_NONE, 220L, 20L, 440L, 40L, 1L));
		.addValues(TUN_IFACE, UID_RED, SET_DEFAULT, TAG_NONE, 1000L, 100L, 1000L, 100L, 2L)
		.addValues(TEST_IFACE, UID_VPN, SET_DEFAULT, TAG_NONE, 660L, 60L, 660L, 60L, 1L)
		.addValues(TEST_IFACE2, UID_VPN, SET_DEFAULT, TAG_NONE, 440L, 40L, 440L, 40L, 1L));

		forcePollAndWaitForIdle();

		assertUidTotal(sTemplateWifi, UID_RED, 300L, 30L, 600L, 60L, 1);
		assertUidTotal(sTemplateWifi, UID_VPN, 30L, 0L, 60L, 0L, 1);
		assertUidTotal(sTemplateWifi, UID_RED, 600L, 60L, 600L, 60L, 1);
		assertUidTotal(sTemplateWifi, UID_VPN, 60L, 0L, 60L, 0L, 1);

		assertUidTotal(buildTemplateMobileWildcard(), UID_RED, 200L, 20L, 400L, 40L, 1);
		assertUidTotal(buildTemplateMobileWildcard(), UID_VPN, 20L, 0L, 40L, 0L, 1);
		assertUidTotal(buildTemplateMobileWildcard(), UID_RED, 400L, 40L, 400L, 40L, 1);
		assertUidTotal(buildTemplateMobileWildcard(), UID_VPN, 40L, 0L, 40L, 0L, 1);
		}

		@Test