Replaced startUpstreamIpv6Forwarding and stopUpstreamIpv6Forwarding
with add/remove Ipv6UpstreamRule. This is a preparation for following
CLs which will pass the upstream's prefixes to the bpf map. We might
have more than one upstream rules.

Also renamed Ipv6ForwardingRule to Ipv6DownstreamRule since we have
defined the Ipv6UpstreamRule.

No logic changes are being made in this CL.

Test: atest TetheringTests
Bug: 261923493
Change-Id: I022f97c2daf468bbd4a4279a069ccf498013e7e7

Followup CL for aosp/2700076

Bug: 296972712
Test: build with aosp/2688146
Change-Id: I617b330c42a99e4c839adac2ea614756b5955ce9

* changes:
  ethernet: clean up EthernetManagerTest
  ethernet: test adding listener after removing server mode iface

Bug: 296211911
Change-Id: Ifd4f7cd06f1aeaba739d27d2328e89031ca73235

createChangeEvent is not expected to be called from a test, so make it
private. Also delete pollOrThrow as polling inline creates a better log
output.

Test: atest EthernetManagerTest
Change-Id: I2399960fee2c51fdf340186189ae83a20c4ac6f3

Tests that registering a EthernetStateListener functions as expected
after requesting a tethering interface and subsequently removing that
interface.

Test: atest testCallbacks_afterRemovingServerModeInterface
Bug: 290971780
Change-Id: I7b6e1a3b3ac23f4fbdd2d20f63f83d59c4d4999d

Test: N/A
Change-Id: I50101f9e5dc4dede5732a31da4ecd53d027adedc

The platform doesn't allow overwriting compat flags that have target SDK
lower than the platform SDK in release build. Ignoring the test cases
that need compat flag overwrite up to S_V2 makes the MTS pass on S
device.

Bug: 296248982
Test: TH
Change-Id: Iab102725004c39b4dc3c0200c9bc673dd6be1302

Bug: 290265761
Bug: 291146480
Bug: 290275468
Test: None
Change-Id: Iaba64415cf81454b6e999f10bad54810884fc3da

Bug: 284972285
Test: m & atest NetHttpTests
Change-Id: Id24fa826f617187722b329821dae9d9548bf218b

The goal is to be able to remove getMap() from BpfMap.h,
as it effectively leaks (what should be an) internal fd.

In practice the dump() operation isn't useful,
as initMaps() and thus native_init() already
guarantee all these maps have valid file descriptors.

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: If89c28923d3ae030dfac0b3b0ab8b15117db3f30

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Id3a128cd72f467fa60213f57c6dd942a0629ba1d

The FD number isn't actually useful debugging information,
and I want to get rid of this fd leak out of BpfMap class.

Test: TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I981832b019b57f534bed1c1fbfedf6457abba6fa

* changes:
  ethernet: use TrackRecord backtrace for better failure logs
  ethernet: correctly report tethering interface state
  ethernet: add missing assert in eventuallyExpect helper

Allow adding tests or adjusting them to increase coverage on behavior
that is implemented in NsdService.

Test: m
Change-Id: I1b0851bdd220caba68c47d5d50d86a543227817b

Report the nsd metrics event of resolution stop.

Bug: 287546772
Test: atest FrameworksNetTestCases
Change-Id: I2e6de22c946d58a3410f16b2f2689fd3ffc635a4

Those tests are no longer flaky after fix being merged, so add
them back to presubmit.

Fix: 293239828
Test: atest CtsNetTestCases:android.net.cts.Ikev2VpnTest \
      --rerun-until-failure 100
Change-Id: I3e5b0f8053404b8840e8ce67ea82344ab53ce421

* changes:
  StatsValue - define operator+=
  eliminate 'struct Stats' in favour of StatsValue
  eliminate InitStats

- Adds NetHttpCoverageTests to postsubmit. This would allow us
to run tests with @SkipPresubmit in post submit.
- Don't jarjar com.android.testutil so that the annotation can
still be found by the testrunner.

Bug: b/293843426
Test: th
Change-Id: I9e792d338515acba798092bbc4c615aef2cac47a

DeviceConfigUtils has isFeatureEnabled for NetworkStack and Tethering
which were confusing since the difference was only the arguments.
This CL renames isFeatureEnabled for Tethering module to
isTetheringFeatureEnabled to avoid confusion.

Bug: 279108992
Test: m
Change-Id: I05255bb38619afbe621d29524d7910d206a149f1

The created handler thread will stay there for a while until
all the tests are finished. This is considered as a leakage
which will take the resource from the devices. In low end
devices, this may possibly impact the performance. The created
threads should be closed explicitly.

Test: atest FrameworksNetTests
Change-Id: Id5faceec341578f1c9757194c91a433fbb3f657f

The created handler thread will stay there for a while until
all the tests are finished. This is considered as a leakage
which will take the resource from the devices. In low end
devices, this may possibly impact the performance. The created
threads should be closed explicitly.

Test: atest FrameworksNetTests
Change-Id: I332d55d8effdb975fd9a8953b19910a7fb25e426

* changes:
  Use Java code path for bpf map operations in BpfNetMaps
  Rename to isTetheringFeatureNotChickenedOut