This commit verifies that
- If VPN network preference is set when
    - Ikev2VpnRunner is created
    - Retrying VPN
    - Updating exclusion list
- If VPN network preference is cleared when
    - Exiting VPN runner
    - NOT_RECOVERABLE happens

Bug: 231749077
Test: atest FrameworksNetTests:VpnTest
Change-Id: I71f48f18fd4556e04c131d5939afaa1ef5a0f814

* changes:
  Make ConnectivityService update BatteryStats radio power state
  Track multiple network activities on V+
  Use netId as idleTimer label on V+

Bug: 293971841
Test: TH
Change-Id: Iae92b171abe8a4620325bd7ce0f7f76912d6d1d8

This is a preliminary change for filtering sockets that is not
in the uid ranges for automatic on/off keepalives. This commit
itself is a no-op change to pass the uid information to
AutomaticOnOffKeepaliveTracker.

Bug: 311119352
Test: atest FrameworksNetTests
Change-Id: I7d96e7a0d3f3054d1409de350420a24378b28cdb

Like NetworkScore, this object is not available on R because
of the absence of the tethering module. Therefore it needs to
be wrapped to be protected against introspection by the test
libraries.

Change-Id: Ia5f84d2926433398cef33d89819a8c6588024ea0
Test: FrameworkNetTests

FileDescriptor#getInt$() is a hidden API with the unsupportedApiUsage
annotation on R. Accessing it will cause a NewApi linter check error.
It should be removed from OffloadHalHidlImpl as it is only used for
log messages.

Bug: b/205762647
Test: m
Change-Id: Ie41d12988aee65a066dfb1529e828f4523cc0907

This change includes:
 1. A mechanism in DevSdkIngoreRunnrer to dump thread counts
    before/after tests, and compare thread counts to detect leaks.
 2. Add an annotation @MonitorThreadLeak for test classes to
    annotate the classes which should monitor thread leaks.
 3. Annotated NetworkStatsServiceTest to apply the enforcement.

Sample output:
[1/2] android.net.connectivity.com.android.server.net.NetworkStatsServiceTest#testDumpStatsMap: PASSED (1.187s)
[2/2] android.net.connectivity.com.android.server.net.NetworkStatsServiceTest#ThreadLeakMonitor: FAILED (7ms)

STACKTRACE:
java.lang.IllegalStateException: Expected threads: {binder:26055_3=1, Instr: androidx.test.runner.AndroidJUnitRunner=1, main=1, InstrumentationConnectionThread=1, binder:26055_2=1, binder:26055_1=1} but got: {binder:26055_3=1, NetworkStatsObservers=1, Instr: androidx.test.runner.AndroidJUnitRunner=1, main=1, InstrumentationConnectionThread=1, binder:26055_2=1, binder:26055_1=1}

Test: atest ConnectivityCoverageTests:android.net.connectivity.com.android.server.net.NetworkStatsServiceTest \
      --rerun-until-failure 100
Bug: 308544001
Bug: 307693729
Change-Id: Ia0bccb82c5985df608b8402009b32626b6b17c5a

Writing data saver status to bpf is supported on Android V or
later devices. Thus, read that from bpf if available.

Test: atest FrameworksNetTests:android.net.connectivity.android.net.BpfNetMapsReaderTest
Test: atest ConnectivityCoverageTests:android.net.connectivity.android.net.ConnectivityManagerTest
Fix: 310801259
Change-Id: Ibd2616328d83f72ee6d2665239c3a44379d1ebf5

SysUi needs to see connectivity diagnostic callbacks to display
 "Checking for internet access..." -> "Connected" or "No internet access".

Bug: 307161342
Test: atest FrameworksNetTests, manually connect to a network without internet connectivity,
verify Internet Dialog doesn't get stuck showing
 "Checking for internet access..."

Change-Id: I86e2b852ff9e5dfbfc37ba711f477166b0ac6835

Now, every services are cached on MdnsServiceCache, so the
remaining TTL should be checked when retrieving services from
the MdnsServiceCache and have a callback to notify the
MdnsServiceTypeClient about expired services.

Bug: 265787401
Test: atest FrameworksNetTests CtsNetTestCases
Change-Id: I99da6cc79bdf5df3c899e642e067907501bc9d4f

Currently, BatteryStatsService register netd callback and track radio
power state only for the default network.
So, battery stats are not accurate if cellular and Wi-Fi networks are
active at the same time.

aosp/2561090 updates BatteryStatsService not to register netd callback
on V+ devices.
This CL updates LegacyNetworkActivityTracker to call BatteryStats API
and update radio power state for networks including non default networks
on V+ devices.

Bug: 267870186
Bug: 279380356
Test: atest FrameworksNetTests
Change-Id: I826b3b4046cc7b8aef46c13300854eaf14b1b777

on V+ devices, NetworkActivityTracker adds idleTimer when the network is
first connected and removes idleTimer when the network is disconnected
so that activity tracker can receive netd
onInterfaceClassActivityChanged callback for multiple networks.

Bug: 267870186
Bug: 279380356
Test: atest FrameworksNetTests
Change-Id: I6f3a95c27e3e58f3f60c40065f562d00431a56b1

* changes:
  Add abstract getValue() for class SvcParam
  Use DnsPacket.toString() for DnsSvcbPacket
  Test: A minor fix for testDnsSvcbRecord_svcParamMandatory

Following CL adds idleTimer for multiple networks and track activities
including non default network on V+
Current LegacyNetworkActivityTracker uses transport type as an idleTimer
label but this makes it difficult to have multiple idleTimers.
So, this CL updates LegacyNetworkActivityTracker to support using netId
as an idleTimer label.

Bug: 267870186
Bug: 279380356
Test: atest FrameworksNetTests
Change-Id: I0039f5624ae1d142dbacba53aa90ca9bf6d43599

Per API council review suggestions in b/309952666, add the same
permission requirements for the unregister APIs.

Bug: 309952666
Test: atest CtsThreadNetworkTestCases
Change-Id: Idc481c7676ddc5d748fe7803f74dd63981186c09

* changes:
  Expect no error for startLegacyVpn with IPv6.
  Remove tests related to LegacyVpnRunner.

Test: m
Change-Id: I13f23d63fd9db763958119c5fb440d4e88b7ac8b

1. Annotate binder interfaces which return
   binder::Status::EX_UNSUPPORTED_OPERATION.
2. Freeze netd_aidl_interface to v14.

Test: m
Change-Id: Ibdc083ce7ac4a8e3dcd1e7cf1dc310210ca76f38

The return type of getValue() in each child class of SvcParam is
checked at compilation time.

Bug: 240259333
Test: atest ConnectivityCoverageTests
Change-Id: Ia677f31a32f40512793cf16a94f64da499594b1f

All the important log message, such as SVCB records, can be printed
by DnsPacket.toString(), so there's no need to override toString()
in DnsSvcbPacket.

Bug: 240259333
Test: atest ConnectivityCoverageTests
Change-Id: I8d8f57524ce07d0177a39a9c3f87146d8eb51943

As per draft-ietf-dnsop-svcb-https-12.html#name-mandatory, the
values in SvcParamKey "mandatory" can appear in any order

Bug: 240259333
Test: atest ConnectivityCoverageTests
Change-Id: Idc347bcefd7a53323f2b380fba612926b2838e65

For Power Saver tests, verify not only the network connectivity of
restricted apps, but also error cause.

Bug: 288340533
Test: atest
CtsHostsideNetworkTests: com.android.cts.net.HostsideNetworkCallbackTests
Change-Id: I122b62891175cd4a035f3c51c5b6073b34f8fd82