tree 5d24b68f3595d89927033c143078f1e4108591c7
parent bce828f157d905bc7f731fc400bdc0466bdfbfa1
author junyulai <junyulai@google.com> 1561711669 +0800
committer Lorenzo Colitti <lorenzo@google.com> 1562061465 +0000

Fix mobile data usage didn't get increased for xlat464 traffic

Interface stats on stacked interfaces is usually clatd. For
xt_qtaguid supported device, the stats is already accounted
against its final egress interface by the kernel.
Framework side does not need to handle stats on statcked
interface at all.

However, on devices that support BPF offload, xlat464
packets are seen by the iptables rules as arriving on stack
interface only. Thus, add stack interface into accounting is
needed.

Bug: 136193260
Test: 1. atest FrameworksNetTests
      2. atest android.app.usage.cts.NetworkUsageStatsTest
      3. manual test on ipv6-only wifi network

Merged-In: I8ebbefbe4df00e40f4896a17fa52c8438d41286e
Change-Id: I8ebbefbe4df00e40f4896a17fa52c8438d41286e
(cherry-pick from aosp/1009306)
(cherry picked from commit feb79bd0d7c5ecc7ac5ba9f54ed2d51ee9fd7e74)