tree 6217507ef2b697bf111c367705665b311f78d6af
parent 0317e9e374fd323cca61a5d913c3c876bddd9c4c
author Mike SU <suzh1@lenovo.com> 1543215913 +0800
committer Zhang Wei-e7976c <e7976c@motorola.com> 1547144185 -0600

fix getIfaceStats and getTotalStats bug

root cause: getIfaceStats and getTotalStats is directly reading
iface_stat_fmt or eBPF, not include tether stats.
solution: add tether stats to getIfaceStats and getTotalStats.

Bug: 120039819
Test case1:
1. tether offload is enabled on phone, enable MHS on phone.
2. Use test app to check getMobileRxBytes->getIfaceStats
3. Download 10M file on MHS client
4. Use test app to check getMobileRxBytes->getIfaceStats again
result: getMobileRxBytes increased around 10M

Test case2:
1. tether offload is disabled on phone, enable MHS on phone.
repeat above step 2~4
result: getMobileRxBytes increased around 10M

Following CTS cases passed
run cts -m CtsNetTestCases --test android.net.cts.TrafficStatsTest
run cts -m CtsUsageStatsTestCases --test android.app.usage.cts.NetworkUsageStatsTest

Change-Id: I3d94acb71c142ec38b750e58822881ff383341cc