diff options
7 files changed, 101 insertions, 37 deletions
diff --git a/core/java/android/bluetooth/BluetoothHidDeviceAppSdpSettings.java b/core/java/android/bluetooth/BluetoothHidDeviceAppSdpSettings.java index 237082e4cb66..2f0b44f76ffb 100644 --- a/core/java/android/bluetooth/BluetoothHidDeviceAppSdpSettings.java +++ b/core/java/android/bluetooth/BluetoothHidDeviceAppSdpSettings.java @@ -18,6 +18,7 @@ package android.bluetooth; import android.os.Parcel; import android.os.Parcelable; +import android.util.EventLog; /** @@ -30,6 +31,8 @@ import android.os.Parcelable; */ public final class BluetoothHidDeviceAppSdpSettings implements Parcelable { + private static final int MAX_DESCRIPTOR_SIZE = 2048; + private final String mName; private final String mDescription; private final String mProvider; @@ -55,6 +58,12 @@ public final class BluetoothHidDeviceAppSdpSettings implements Parcelable { mDescription = description; mProvider = provider; mSubclass = subclass; + + if (descriptors == null || descriptors.length > MAX_DESCRIPTOR_SIZE) { + EventLog.writeEvent(0x534e4554, "119819889", -1, ""); + throw new IllegalArgumentException("descriptors must be not null and shorter than " + + MAX_DESCRIPTOR_SIZE); + } mDescriptors = descriptors.clone(); } diff --git a/core/java/android/net/NetworkStats.java b/core/java/android/net/NetworkStats.java index edf9bc1c6b39..4bcc2453689d 100644 --- a/core/java/android/net/NetworkStats.java +++ b/core/java/android/net/NetworkStats.java @@ -776,14 +776,19 @@ public class NetworkStats implements Parcelable { * packet needs to be subtracted from the root UID on the base interface both for tx * and rx traffic (http://b/12249687, http:/b/33681750). * + * As for eBPF, the per uid stats is collected by different hook, the rx packets on base + * interface will not be counted. Thus, the adjustment on root uid is only needed in tx + * direction. + * * <p>This method will behave fine if {@code stackedIfaces} is an non-synchronized but add-only * {@code ConcurrentHashMap} * @param baseTraffic Traffic on the base interfaces. Will be mutated. * @param stackedTraffic Stats with traffic stacked on top of our ifaces. Will also be mutated. * @param stackedIfaces Mapping ipv6if -> ipv4if interface where traffic is counted on both. + * @param useBpfStats True if eBPF is in use. */ public static void apply464xlatAdjustments(NetworkStats baseTraffic, - NetworkStats stackedTraffic, Map<String, String> stackedIfaces) { + NetworkStats stackedTraffic, Map<String, String> stackedIfaces, boolean useBpfStats) { // Total 464xlat traffic to subtract from uid 0 on all base interfaces. // stackedIfaces may grow afterwards, but NetworkStats will just be resized automatically. final NetworkStats adjustments = new NetworkStats(0, stackedIfaces.size()); @@ -802,15 +807,20 @@ public class NetworkStats implements Parcelable { continue; } // Subtract any 464lat traffic seen for the root UID on the current base interface. + // However, for eBPF, the per uid stats is collected by different hook, the rx packets + // on base interface will not be counted. Thus, the adjustment on root uid is only + // needed in tx direction. adjust.iface = baseIface; - adjust.rxBytes = -(entry.rxBytes + entry.rxPackets * IPV4V6_HEADER_DELTA); + if (!useBpfStats) { + adjust.rxBytes = -(entry.rxBytes + entry.rxPackets * IPV4V6_HEADER_DELTA); + adjust.rxPackets = -entry.rxPackets; + } adjust.txBytes = -(entry.txBytes + entry.txPackets * IPV4V6_HEADER_DELTA); - adjust.rxPackets = -entry.rxPackets; adjust.txPackets = -entry.txPackets; adjustments.combineValues(adjust); - // For 464xlat traffic, xt_qtaguid only counts the bytes of the native IPv4 packet sent - // on the stacked interface with prefix "v4-" and drops the IPv6 header size after + // For 464xlat traffic, per uid stats only counts the bytes of the native IPv4 packet + // sent on the stacked interface with prefix "v4-" and drops the IPv6 header size after // unwrapping. To account correctly for on-the-wire traffic, add the 20 additional bytes // difference for all packets (http://b/12249687, http:/b/33681750). entry.rxBytes += entry.rxPackets * IPV4V6_HEADER_DELTA; @@ -829,8 +839,8 @@ public class NetworkStats implements Parcelable { * base and stacked traffic. * @param stackedIfaces Mapping ipv6if -> ipv4if interface where traffic is counted on both. */ - public void apply464xlatAdjustments(Map<String, String> stackedIfaces) { - apply464xlatAdjustments(this, this, stackedIfaces); + public void apply464xlatAdjustments(Map<String, String> stackedIfaces, boolean useBpfStats) { + apply464xlatAdjustments(this, this, stackedIfaces, useBpfStats); } /** diff --git a/core/java/com/android/internal/net/NetworkStatsFactory.java b/core/java/com/android/internal/net/NetworkStatsFactory.java index c4d08c7dc5d6..b3cf389c1bb9 100644 --- a/core/java/com/android/internal/net/NetworkStatsFactory.java +++ b/core/java/com/android/internal/net/NetworkStatsFactory.java @@ -113,11 +113,12 @@ public class NetworkStatsFactory { /** * Applies 464xlat adjustments with ifaces noted with {@link #noteStackedIface(String, String)}. - * @see NetworkStats#apply464xlatAdjustments(NetworkStats, NetworkStats, Map) + * @see NetworkStats#apply464xlatAdjustments(NetworkStats, NetworkStats, Map, boolean) */ public static void apply464xlatAdjustments(NetworkStats baseTraffic, - NetworkStats stackedTraffic) { - NetworkStats.apply464xlatAdjustments(baseTraffic, stackedTraffic, sStackedIfaces); + NetworkStats stackedTraffic, boolean useBpfStats) { + NetworkStats.apply464xlatAdjustments(baseTraffic, stackedTraffic, sStackedIfaces, + useBpfStats); } @VisibleForTesting @@ -263,7 +264,7 @@ public class NetworkStatsFactory { // No locking here: apply464xlatAdjustments behaves fine with an add-only ConcurrentHashMap. // TODO: remove this and only apply adjustments in NetworkStatsService. - stats.apply464xlatAdjustments(sStackedIfaces); + stats.apply464xlatAdjustments(sStackedIfaces, mUseBpfStats); return stats; } diff --git a/core/jni/com_android_internal_net_NetworkStatsFactory.cpp b/core/jni/com_android_internal_net_NetworkStatsFactory.cpp index c15b7ee4fe04..de3a78a61a7e 100644 --- a/core/jni/com_android_internal_net_NetworkStatsFactory.cpp +++ b/core/jni/com_android_internal_net_NetworkStatsFactory.cpp @@ -175,7 +175,7 @@ static int legacyReadNetworkStatsDetail(std::vector<stats_line>* lines, } } s.tag = rawTag >> 32; - if (limitTag != -1 && s.tag != limitTag) { + if (limitTag != -1 && s.tag != static_cast<uint32_t>(limitTag)) { //ALOGI("skipping due to tag: %s", buffer); continue; } @@ -188,7 +188,7 @@ static int legacyReadNetworkStatsDetail(std::vector<stats_line>* lines, if (sscanf(pos, "%u %u %" PRIu64 " %" PRIu64 " %" PRIu64 " %" PRIu64, &s.uid, &s.set, &s.rxBytes, &s.rxPackets, &s.txBytes, &s.txPackets) == 6) { - if (limitUid != -1 && limitUid != s.uid) { + if (limitUid != -1 && static_cast<uint32_t>(limitUid) != s.uid) { //ALOGI("skipping due to uid: %s", buffer); continue; } diff --git a/services/core/java/com/android/server/am/ActivityManagerService.java b/services/core/java/com/android/server/am/ActivityManagerService.java index 10707b255c29..a1d42c091334 100644 --- a/services/core/java/com/android/server/am/ActivityManagerService.java +++ b/services/core/java/com/android/server/am/ActivityManagerService.java @@ -8768,6 +8768,14 @@ public class ActivityManagerService extends IActivityManager.Stub @Override public boolean isAppForeground(int uid) { + int callerUid = Binder.getCallingUid(); + if (UserHandle.isCore(callerUid) || callerUid == uid) { + return isAppForegroundInternal(uid); + } + return false; + } + + private boolean isAppForegroundInternal(int uid) { synchronized (this) { UidRecord uidRec = mActiveUids.get(uid); if (uidRec == null || uidRec.idle) { diff --git a/services/core/java/com/android/server/net/NetworkStatsService.java b/services/core/java/com/android/server/net/NetworkStatsService.java index 9bf3874088d7..17ab29d74790 100644 --- a/services/core/java/com/android/server/net/NetworkStatsService.java +++ b/services/core/java/com/android/server/net/NetworkStatsService.java @@ -1622,7 +1622,8 @@ public class NetworkStatsService extends INetworkStatsService.Stub { // fold tethering stats and operations into uid snapshot final NetworkStats tetherSnapshot = getNetworkStatsTethering(STATS_PER_UID); tetherSnapshot.filter(UID_ALL, ifaces, TAG_ALL); - NetworkStatsFactory.apply464xlatAdjustments(uidSnapshot, tetherSnapshot); + NetworkStatsFactory.apply464xlatAdjustments(uidSnapshot, tetherSnapshot, + mUseBpfTrafficStats); uidSnapshot.combineAllValues(tetherSnapshot); final TelephonyManager telephonyManager = (TelephonyManager) mContext.getSystemService( @@ -1632,7 +1633,8 @@ public class NetworkStatsService extends INetworkStatsService.Stub { final NetworkStats vtStats = telephonyManager.getVtDataUsage(STATS_PER_UID); if (vtStats != null) { vtStats.filter(UID_ALL, ifaces, TAG_ALL); - NetworkStatsFactory.apply464xlatAdjustments(uidSnapshot, vtStats); + NetworkStatsFactory.apply464xlatAdjustments(uidSnapshot, vtStats, + mUseBpfTrafficStats); uidSnapshot.combineAllValues(vtStats); } diff --git a/tests/net/java/android/net/NetworkStatsTest.java b/tests/net/java/android/net/NetworkStatsTest.java index 8f18d072a0bb..d6dbf5aaa9d8 100644 --- a/tests/net/java/android/net/NetworkStatsTest.java +++ b/tests/net/java/android/net/NetworkStatsTest.java @@ -39,6 +39,7 @@ import static org.junit.Assert.assertEquals; import static org.junit.Assert.assertTrue; import static org.junit.Assert.fail; +import android.net.NetworkStats.Entry; import android.os.Process; import android.support.test.runner.AndroidJUnit4; import android.support.test.filters.SmallTest; @@ -785,7 +786,38 @@ public class NetworkStatsTest { ArrayMap<String, String> stackedIface = new ArrayMap<>(); stackedIface.put(v4Iface, baseIface); - NetworkStats.Entry otherEntry = new NetworkStats.Entry( + // Ipv4 traffic sent/received by an app on stacked interface. + final NetworkStats.Entry appEntry = new NetworkStats.Entry( + v4Iface, appUid, SET_DEFAULT, TAG_NONE, + 30501490 /* rxBytes */, + 22401 /* rxPackets */, + 876235 /* txBytes */, + 13805 /* txPackets */, + 0 /* operations */); + + // Traffic measured for the root uid on the base interface if eBPF is in use. + // Incorrectly includes appEntry's bytes and packets, plus IPv4-IPv6 translation + // overhead (20 bytes per packet), only for TX traffic. + final NetworkStats.Entry ebpfRootUidEntry = new NetworkStats.Entry( + baseIface, rootUid, SET_DEFAULT, TAG_NONE, + 163577 /* rxBytes */, + 187 /* rxPackets */, + 1169942 /* txBytes */, + 13902 /* txPackets */, + 0 /* operations */); + + // Traffic measured for the root uid on the base interface if xt_qtaguid is in use. + // Incorrectly includes appEntry's bytes and packets, plus IPv4-IPv6 translation + // overhead (20 bytes per packet), in both directions. + final NetworkStats.Entry xtRootUidEntry = new NetworkStats.Entry( + baseIface, rootUid, SET_DEFAULT, TAG_NONE, + 31113087 /* rxBytes */, + 22588 /* rxPackets */, + 1169942 /* txBytes */, + 13902 /* txPackets */, + 0 /* operations */); + + final NetworkStats.Entry otherEntry = new NetworkStats.Entry( otherIface, appUid, SET_DEFAULT, TAG_NONE, 2600 /* rxBytes */, 2 /* rxPackets */, @@ -793,39 +825,41 @@ public class NetworkStatsTest { 3 /* txPackets */, 0 /* operations */); - NetworkStats stats = new NetworkStats(TEST_START, 3) - .addValues(v4Iface, appUid, SET_DEFAULT, TAG_NONE, - 30501490 /* rxBytes */, - 22401 /* rxPackets */, - 876235 /* txBytes */, - 13805 /* txPackets */, - 0 /* operations */) - .addValues(baseIface, rootUid, SET_DEFAULT, TAG_NONE, - 31113087, - 22588, - 1169942, - 13902, - 0) + final NetworkStats statsXt = new NetworkStats(TEST_START, 3) + .addValues(appEntry) + .addValues(xtRootUidEntry) .addValues(otherEntry); - stats.apply464xlatAdjustments(stackedIface); + final NetworkStats statsEbpf = new NetworkStats(TEST_START, 3) + .addValues(appEntry) + .addValues(ebpfRootUidEntry) + .addValues(otherEntry); - assertEquals(3, stats.size()); - assertValues(stats, 0, v4Iface, appUid, SET_DEFAULT, TAG_NONE, - METERED_NO, ROAMING_NO, DEFAULT_NETWORK_NO, + statsXt.apply464xlatAdjustments(stackedIface, false); + statsEbpf.apply464xlatAdjustments(stackedIface, true); + + assertEquals(3, statsXt.size()); + assertEquals(3, statsEbpf.size()); + final NetworkStats.Entry expectedAppUid = new NetworkStats.Entry( + v4Iface, appUid, SET_DEFAULT, TAG_NONE, 30949510, 22401, 1152335, 13805, 0); - assertValues(stats, 1, baseIface, 0, SET_DEFAULT, TAG_NONE, - METERED_NO, ROAMING_NO, DEFAULT_NETWORK_NO, + final NetworkStats.Entry expectedRootUid = new NetworkStats.Entry( + baseIface, 0, SET_DEFAULT, TAG_NONE, 163577, 187, 17607, 97, 0); - assertEquals(otherEntry, stats.getValues(2, null)); + assertEquals(expectedAppUid, statsXt.getValues(0, null)); + assertEquals(expectedRootUid, statsXt.getValues(1, null)); + assertEquals(otherEntry, statsXt.getValues(2, null)); + assertEquals(expectedAppUid, statsEbpf.getValues(0, null)); + assertEquals(expectedRootUid, statsEbpf.getValues(1, null)); + assertEquals(otherEntry, statsEbpf.getValues(2, null)); } @Test @@ -850,7 +884,7 @@ public class NetworkStatsTest { .addValues(secondEntry); // Empty map: no adjustment - stats.apply464xlatAdjustments(new ArrayMap<>()); + stats.apply464xlatAdjustments(new ArrayMap<>(), false); assertEquals(2, stats.size()); assertEquals(firstEntry, stats.getValues(0, null)); |