".apex" is easy to confuse.
Rename as below:
apex: com.android.tethering.apex -> com.android.tethering
apk: com.android.tethering -> com.android.networkstack.tethering

Bug: 146471733
Test: build

Change-Id: I2c7647abb996539a3af6cfe0e0214a5e8927c0d6

Change-Id: I7837cdd4cd18d3925f9198a5864a601df745039c

Bug: 146180860
Test: atest TetheringTests
Change-Id: I14be9c446319fad0706bf8c20faaba7801d638a2

Bug: 145876447
Test: build, flash, boot
Change-Id: Ic40b6080a662e312e4efd7246d964710d9f07bef

[automerger skipped] Merge "Add new UnsupportedAppUsage annotation as lib dependency." am: 938bc05883 am: 05057bd860 am: a80641662a -s ours
am skip reason: Change-Id Ibb7f8424186149365354a96249c06c9fccde66bd with SHA-1 d24aeefd is in history

Change-Id: I823ade8fdf61a924b07d48312005057780fd2cb7

Bug: 145132366
Test: m
Change-Id: Ibb7f8424186149365354a96249c06c9fccde66bd
Merged-In: Ibb7f8424186149365354a96249c06c9fccde66bd

Bug: 145132366
Test: m
Change-Id: Ibb7f8424186149365354a96249c06c9fccde66bd

BUG: 143747402
Change-Id: Ic1c10100837879a3b4337c7df6cfb36aea8c33c9

[automerger skipped] Merge "Migrate tethering notification resources" am: b385c965 am: 2548410cf6 -s ours
am skip reason: Change-Id I832103090d500fd8e2e2efb9dc7151426da3f88d with SHA-1 0988213c is in history

Change-Id: I8b73500a3a1d029c97658ac3299ba9194600029d

Migrate the resources which are only used by tethering notification
from framework/base/core/res to tethering package resource
folder.

Bug: 122085773
Bug: 139763854
Test: build pass
Change-Id: I832103090d500fd8e2e2efb9dc7151426da3f88d
Merged-In: I832103090d500fd8e2e2efb9dc7151426da3f88d

Migrate the resources which are only used by tethering notification
from framework/base/core/res to tethering package resource
folder.

Bug: 122085773
Bug: 139763854
Test: build pass
Change-Id: I832103090d500fd8e2e2efb9dc7151426da3f88d

am: 192ac8892c

Change-Id: I2b22c01ad2ef1fde4c6bbf73b0a8d9c1f711d0c1

Add APEX com.android.tethering.apex for tethering module.
It have tethering apk now and would have jar and library
in follow up CL.

Bug:144320626
Test: build
Change-Id: Ie6158639886e90180dd90347e802a5fe062031b2

am: d2958bb368 -s ours
am skip reason: change_id I4ed08d20f8b7476b8ecd5d018b75806dd2f22cc1 with SHA1 499c4a8c is in history

Change-Id: I630b00c69238730fe5aa267a658f93edb236acc6

am: 146e4976bf -s ours
am skip reason: change_id I7e78c0e0a3e70f940a749ba2a39ece7c7ec5b9b3 with SHA1 2c4cc6f5 is in history

Change-Id: Ie6a28a142e2cf75adfc3d1a45d87e9daa67423e4

[automerger skipped] [Tether07] Clean up build rule for libtetheroffloadjni am: 810aa68d am: 510a354082
am: 463265c034 -s ours
am skip reason: change_id Ic082045bc04d3989f7f095c7a499bc0d943e4031 with SHA1 42aa1754 is in history

Change-Id: I7903a9514ceecfc61e6d66e2e3ba55ed0bafb4bf

To be the unbundled application, tethering can not use UserManagerInternal
method anymore. Replace it by listening user restriction change intent.

Also fix some cleanup from
https://android-review.googlesource.com/c/platform/frameworks/base/+/1131002

Bug: 143195885
Test: -build, flash, boot
      -atest TetheringTests
      -manual test. Add a trigger point to call
       UserManager.setUserRestriction(DISALLOW_CONFIG_TETHERING) from
       Settings. Open hotspot -> restrict tethering from new adding trigger
       point -> hotspot is OFF and Tethering settings are not available.

Change-Id: I4ed08d20f8b7476b8ecd5d018b75806dd2f22cc1
Merged-In: I4ed08d20f8b7476b8ecd5d018b75806dd2f22cc1

Now tethering would be run in dedicated service.
TetheringManager is the interface used to communicate with
TetheringService. The new call flow would be: ConnectivityManager
-> ConnectivityService -> TetheringManager -> TetheringService.
Note: the return value of #tether(), #untether() and #setUsbTethering()
APIs would always be no error. Client can use #getLastTetherError()
or #getTetheredIfaces or listen tether state change to check
status of corresponding interface.

Bug: 136040414
Bug: 144742179
Test: -build, flash, boot
      -atest TetheringTests
      -atest FrameworksNetTests

Change-Id: I7e78c0e0a3e70f940a749ba2a39ece7c7ec5b9b3
Merged-In: I7e78c0e0a3e70f940a749ba2a39ece7c7ec5b9b3

- Statically include android.hardware.tetheroffload.config@1.0,
  libcutils and their dependency library.
- Use shared-lib if there is NDK or NDK-compliant version
- Remove android.hardware.tetheroffload.control-V1.0-java from
  service.core because it is already statically built in tethering apk

Bug: 143195885
Test: -build, flash, boot
Change-Id: Ic082045bc04d3989f7f095c7a499bc0d943e4031
Merged-In: Ic082045bc04d3989f7f095c7a499bc0d943e4031

To be the unbundled application, tethering can not use UserManagerInternal
method anymore. Replace it by listening user restriction change intent.

Also fix some cleanup from
https://android-review.googlesource.com/c/platform/frameworks/base/+/1131002

Bug: 143195885
Test: -build, flash, boot
      -atest TetheringTests
      -manual test. Add a trigger point to call
       UserManager.setUserRestriction(DISALLOW_CONFIG_TETHERING) from
       Settings. Open hotspot -> restrict tethering from new adding trigger
       point -> hotspot is OFF and Tethering settings are not available.

Change-Id: I4ed08d20f8b7476b8ecd5d018b75806dd2f22cc1

Now tethering would be run in dedicated service.
TetheringManager is the interface used to communicate with
TetheringService. The new call flow would be: ConnectivityManager
-> ConnectivityService -> TetheringManager -> TetheringService.
Note: the return value of #tether(), #untether() and #setUsbTethering()
APIs would always be no error. Client can use #getLastTetherError()
or #getTetheredIfaces or listen tether state change to check
status of corresponding interface.

Bug: 136040414
Bug: 144742179
Test: -build, flash, boot
      -atest TetheringTests
      -atest FrameworksNetTests

Change-Id: I7e78c0e0a3e70f940a749ba2a39ece7c7ec5b9b3

- Statically include android.hardware.tetheroffload.config@1.0,
  libcutils and their dependency library.
- Use shared-lib if there is NDK or NDK-compliant version
- Remove android.hardware.tetheroffload.control-V1.0-java from
  service.core because it is already statically built in tethering apk

Bug: 143195885
Test: -build, flash, boot
Change-Id: Ic082045bc04d3989f7f095c7a499bc0d943e4031

Conflicted with Ifd6cfc77acf2284804a2f64011c2733b5c222369

Test: m
Change-Id: I2cb428a8cf6f194f2c33106df4610e0956bc994c

am: 1877b8226d

Change-Id: Ie5aa119857b940abb838f5cb0baf6ba294eb896a

Both were already statically linked both in the NetworkStack module and
the framework, so this change only reorganizes the file locations.

It makes more sense to have the library files in the NetworkStack module
folder, as changes to these files will be released with the same cadence
as the module, not the framework.

Bug: 139106271
Test: built, flashed, WiFi working
Change-Id: Ifaa882b53d1084ef32db6b27d35b56eb226c468f

Bug: 144455789
Test: Build pass.
      atest TetheringConfigurationTest (PASS)

Change-Id: I9ab4c7b3aef0619046d7e3d711683dbe1f31bb50

[automerger skipped] Merge "[mainline] Expose getTetherApnRequired API as system API" am: 3887ca1f22 am: fa3008c39d
am: 3e5b9ac2b6 -s ours
am skip reason: change_id Iafb2e4fbddb0251e23673742d990ad098a8ae375 with SHA1 87b8bf85 is in history

Change-Id: Ia1d35dcc9bb33144e24da9f5e5e27ebde8d9c6fc

1. getTetherApnRequired API rename to isTetherApnRequired.
2. Expose isTetherApnRequired API as system API.

Bug: 142365448
Test: Build pass.
      atest TetheringConfigurationTest (PASS)

Change-Id: Iafb2e4fbddb0251e23673742d990ad098a8ae375
Merged-In: Iafb2e4fbddb0251e23673742d990ad098a8ae375

1. getTetherApnRequired API rename to isTetherApnRequired.
2. Expose isTetherApnRequired API as system API.

Bug: 142365448
Test: Build pass.
      atest TetheringConfigurationTest (PASS)

Change-Id: Iafb2e4fbddb0251e23673742d990ad098a8ae375

am: 8582437269

Change-Id: I067c803982ce0dbd3d7af22fe1682440c4074752

The tether offload JNI library in this patch still have many dependencies
with internal libraries. Will have follow up changes to cut the
dependencies to let it be a unbundled library.

Bug: 136040414
Test: -build, flash, boot
      -atest TetheringTests
      -atest FrameworksNetTests

Change-Id: Iacf8e0b94135e35672de3ee77c474ee39a00c591

am: 8ed3176808

Change-Id: Ifc9f7626848727161f938f44b26e756dbf664588

[automerger skipped] Merge "[Tether04] Migrate EntitlementManager into module" am: 47db7adcca am: bc5353c16c
am: 5243565849 -s ours
am skip reason: change_id Ifdfc6cd95377351c37946a146b60896f07ece59d with SHA1 cf7d9b2f is in history

Change-Id: I5ecd147b860ea84bda21c6a58da4955cb987907d

Bug: 136040414
Test: -build, flash, boot
      -atest TetheringTests
      -atest FrameworksNetTests

Change-Id: Ic1d9deecb66aaba0a4264a57f2e6579ea491ac9b