This is useful for OEMs that want to use RNDIS or NCM as a
local-only link that is directly connected to some other host.
This can be used to implement USB tethering using NCM, which
currently only supports local-only mode.
Bug: 175090447
Test: TetheringIntegrationTests:EthernetTetheringTest#testLocalOnlyTethering
Change-Id: I0ffaa46e4640e5b235340a15d25909106ceb0c07
The tethering module uses JNI in various classes, but only calls
System.loadLibrary in TetheringService#makeTethering. This means
that:
1. Any test that uses a class that uses JNI must load the
library itself.
2. Any code that runs before TetheringService#makeTethering could
potentially crash if it uses JNI. We may never have such code
though.
Instead, make every class that has a native method load the JNI
library itself at static initialization time. This guarantees
that the class will have the JNI code available in any context
(production, test, etc.)
System.loadLibrary is documented not to do anything if called
more than once with the same library name:
https://docs.oracle.com/javase/7/docs/api/java/lang/Runtime.html#loadLibrary(java.lang.String)
and the implementation has a lock so it is safe to call from
multiple threads concurrently.
Test: builds, boots, tethering starts
Test: atest TetheringCoverageTests
Change-Id: I9c0147ae9a28877f416aaff387b426d304ae552d
Used to record offload transmitted/received forwarded bytes/packets.
Bug: 150736748
Test: new test BpfTetheringCoordinatorTest
Change-Id: Ie8725f95c3ddd5fb3811d479de32d2c1f7dcb493
Application can specify static ipv4 server and client address to setup
tethering and this is one shot configuration. Tethering service would
not save the configuration and the configuration would be reset when
tethering stop or start failure.
When startTethering callback fired, it just mean tethering is requested
successful. Therefore, callers may call startTethering again if
startTethering successful but do not receive following tethering active
notification for a while. Tethering service never actually does anything
synchronously when startTethering is called:
-startProvisioningIfNeeded just posts a message to the handler thread.
-enableTetheringInternal doesn't do anything synchronously, it just
asks the downstreams to get their interfaces ready and waits for
callbacks.
If tethering is already enabled with a different request,
tethering would be disabled and re-enabled.
Bug: 141256482
Test: -build, flash, boot
-atest TetheringTests
-atest CtsTetheringTest
Change-Id: I0399917e7cefa1547d617e688225544c4fc1a231
TetheringUtil JNI is too big that it statically linking hidl and its
dependency library. To remove these static libraries, calling hidl in java
directly instead of using JNI.
Bug: 148984662
Test: -build, flash, boot
-manually ON/OFF tethering
Change-Id: Id5a9759eb453fddaf0c3b7a31da17224e35e963e
Using alternative way to replace some @hide API.
Bug: 144814072
Test: build, flash, boot
atest TetheringTests
Change-Id: I1e12d69db1ad91dff553e142e17c6a70808e1639
