Snap for 5704056 from 3a93c00796c17996cc3b76d334346bc8f6a52beb to rvc-release

Change-Id: I09f5ca7fb26917e368dba6e07295992ef1cb8300
This commit is contained in:
android-build-team Robot
2019-07-03 03:01:51 +00:00

View File

@@ -1187,14 +1187,22 @@ public class NetworkStatsService extends INetworkStatsService.Stub {
}
}
// Traffic occurring on stacked interfaces is usually clatd,
// which is already accounted against its final egress interface
// by the kernel. Thus, we only need to collect stacked
// interface stats at the UID level.
// Traffic occurring on stacked interfaces is usually clatd.
// UID stats are always counted on the stacked interface and never
// on the base interface, because the packets on the base interface
// do not actually match application sockets until they are translated.
//
// Interface stats are more complicated. Packets subject to BPF offload
// never appear on the base interface and only appear on the stacked
// interface, so to ensure those packets increment interface stats, interface
// stats from stacked interfaces must be collected.
final List<LinkProperties> stackedLinks = state.linkProperties.getStackedLinks();
for (LinkProperties stackedLink : stackedLinks) {
final String stackedIface = stackedLink.getInterfaceName();
if (stackedIface != null) {
if (mUseBpfTrafficStats) {
findOrCreateNetworkIdentitySet(mActiveIfaces, stackedIface).add(ident);
}
findOrCreateNetworkIdentitySet(mActiveUidIfaces, stackedIface).add(ident);
if (isMobile) {
mobileIfaces.add(stackedIface);