* changes:
  Address comments on aosp/1550755
  [VCN07.1] Add test for bypassing VCN for non-internet request

This CL bypass adding NOT_VCN_MANAGED on R device. And add TODOs
for refactoring and adding test coverage.

Test: atest CtsNetTestCasesLatestSdk:NetworkRequestTest on R device
Bug: 175662146

Change-Id: Id09b19c13f9a74e25d45689d2211418172dfaec8

This would allow us to run both metered and unmetered networkpolicy
related tests when the device is on a cellular network.

Bug: 165343126
Test: atest CtsHostsideNetworkTests:HostsideRestrictBackgroundNetworkTests
Test: atest CtsHostsideNetworkTests:HostsideNetworkCallbackTests
Change-Id: Id70856dffc920e74bda28583dba4dd851a832397
Merged-In: Id70856dffc920e74bda28583dba4dd851a832397

This reverts commit f6a1052f.

Reason for revert: Suspected reason for TetheringTests breakage
Bug: 179467044

Change-Id: I3a5ee621b32145b74a31d6c3e411bd789e395935

Test: atest NetworkRequestTest#testBypassingVcnForNonInternetRequest
Bug: 175662146
Change-Id: I245bd69e02866d3608ab1667b665f6e12860037b

Bug: 175430552
Test: disable WiFi feature on device with wlan0

Change-Id: I83012013ff6a276d9a5c70748b726289b007cb0a

Test: android.net.cts.ConnectivityManagerTest#testRequestBackgroundNetwork
Bug: 175662146

Change-Id: Icd7d2bc18c4b328291e96fc3f18828d0421f5b6e

Add NetdStaticLibTestsLib into Tethering MTS , so that the tests
under client-libs can also be run when running tethering MTS.

Bug: 170598012
Test: atest TetheringCoverageTests
Change-Id: Idd47becaa4254ab80b74ad5f3ddcdd4b017a5e69

Test: atest TetheringTests TetheringCoverageTests
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ibdbba9ef6652dd11bb18eba316045dff440fcf9e

Add code to BpfCoordinator to dump upstream IPv4 and IPv6 rules.
For IPv4, currently only the upstream map is printed, because the
downstream map is expected to be symmetrical.

Example output:

=============
    21(21) -> 12(rmnet_data2) 86dd 00:00:00:00:00:00 00:00:00:00:00:00
    [wlan1]: iif(iface) oif(iface) v6addr srcmac dstmac
      12(rmnet_data2) 21(wlan1) /2001:240:2425:b5dc:21a9:995d:bc57:bc37 b2:b5:e0:24:21:c2 ca:06:8d:54:99:ad
    [IPv4]: iif(iface) oif(iface) src nat dst
      21(21) 12(rmnet_data2) 192.168.16.247:41544 -> 100.101.80.108:41544 -> 216.239.36.135:443
      21(21) 12(rmnet_data2) 192.168.16.247:42028 -> 100.101.80.108:42028 -> 8.8.4.4:853
      21(21) 12(rmnet_data2) 192.168.16.247:42032 -> 100.101.80.108:42032 -> 8.8.4.4:853
      21(21) 12(rmnet_data2) 192.168.16.247:42042 -> 100.101.80.108:42042 -> 8.8.4.4:853
      21(21) 12(rmnet_data2) 192.168.16.247:41816 -> 100.101.80.108:41816 -> 8.8.8.8:853
      21(21) 12(rmnet_data2) 192.168.16.247:42040 -> 100.101.80.108:42040 -> 8.8.4.4:853

=============

Also make it possible to do "dumpsys tethering bpf" and get only
the BPF dump.

Test: manual
Change-Id: I2aaa2fdda7d724994090c26feff585f24cd3283b

* changes:
  Remove IpServer.Dependencies#getIfIndex.
  Address comments on aosp/1559686.

Test: N/A
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ic217e08484c39077bcc408195daa3311ed93ad28

This code is unused.

Test: atest TetheringTests
Change-Id: Iaac422d72e8538b67798cb3ae3737deb7b426401

Also remove some unnecessary line wrapping.

Test: atest TetheringTests
Change-Id: Ia7638b3198d7811cdbb34e959c50608cf1a656bf

Test: new unit test
Change-Id: Ibec09f328e24111aee4760af2f75ea5a80ba84c3

Test: test-only change
Change-Id: I9a47234979cbb161dfcd0c97c54c0476aa753c5e

- Add methods to start and stop IPv6 forwarding upstream
- Populate the upstream IPv6 map when the first rule for any
  upstream/downstream pair is created.
- Clear the upstream IPv6 map when the last rule for any
  upstream/downstream pair is deleted.

Test: Added coverage to IpServerTest and BpfCoordinatorTest
Change-Id: Ib041081e95f5f449489ab63138de034222ffac8f

The two value types are identical so there is no need to have
separate classes for them.

Test: atest TetheringTests
Change-Id: Ia622b082d0a44373d21f51222f5e675e5bde08e0

* changes:
  merge Tether{Down,Up}stream4{Key,Value} - part 3 - fixups
  merge Tether{Down,Up}stream4{Key,Value} - part 2 - java
  merge Tether{Down,Up}stream4{Key,Value} - part 1 - C portion

These are read-only intents and should not be mutated by any
app receiving them.

Bug: 178324405
Bug: 178249531
Test: atest TetheringTests TetheringCoverageTests GtsTetheringTestCases
Change-Id: I5395e7c19e6453640ad790f2b9a9ba22bbcefa88

Bug: 178324405
Test: atest TetheringTests
Change-Id: I2069ea79f982e6bb197388edd7820a05d1e651f1

Test: atest, TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ia7840698e80ded33d8e0b59efe1ca7267254b892

Generated via:
  git grep 'Tether(Down|Up)stream4(Key|Value)' | cut -d: -f1 | sort -u | while read i; do
    sed -r -i 's@TetherUpstream4Value@Tether4Value@g' "$i"
    sed -r -i 's@TetherDownstream4Value@Tether4Value@g' "$i"
    sed -r -i 's@TetherDownstream4Key@Tether4Key@g' "$i"
    sed -r -i 's@TetherUpstream4Key@Tether4Key@g' "$i"
  done

  cd Tethering/src/com/android/networkstack/tethering
  git mv TetherUpstream4Key.java Tether4Key.java
  git mv TetherUpstream4Value.java Tether4Value.java

  git diff TetherDownstream4Key.java Tether4Key.java
  git diff TetherDownstream4Value.java Tether4Value.java
  git rm TetherDownstream4Key.java
  git rm TetherDownstream4Value.java

Fixup resulting 'import' duplication
  mcedit Tethering/apishim/31/com/android/networkstack/tethering/apishim/api31/BpfCoordinatorShimImpl.java
  mcedit Tethering/apishim/30/com/android/networkstack/tethering/apishim/api30/BpfCoordinatorShimImpl.java
  mcedit Tethering/apishim/common/com/android/networkstack/tethering/apishim/common/BpfCoordinatorShim.java
  mcedit Tethering/tests/unit/src/android/net/ip/IpServerTest.java

Test: N/A, requires follow up commit
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I1dfc3108ca4bbd0cefc3420bc7e421594b62619c

The keys are identical, and the values nearly so, this will make everyone's life easier.

Test: git grep 'Tether(Down|Up)stream4(Key|Value)' finds nothing
  (note this requires follow up commits)
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Ifbff2c617ac5834ea80f827eaf89ca81e862baec

* changes:
  [NFCT.TETHER.10] Add/delete IPv4 offload BPF rules to/from BPF map
  [NFCT.TETHER.9] Build IPv4 offload BPF rules for raw ip

Test: atest, TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I0ad143be954d55d0ed39853031c7bd364378e1ec

Access the IPv4 downstream and upstream BPF map with the built rules.

Test: atest TetheringCoverageTests
Change-Id: I8cd6e49b377c72250988019eea57f93cccd78309

Test: atest, TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Icabd1db48a1189425a941384d534c0f18bf20827

Test: atest, TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: I649dc490b1883a1e97f748370a77c956f1315e2e

All sources for the connectivity module are being moved to
frameworks/base/packages/Connectivity, so that they can all be moved to
packages/modules/Connectivity in one move keeping history.

INetworkAgent and INetworkAgentRegistry were created in
packages/modules/Connectivity directly, but this makes managing the
sources until the move harder as the module needs to pull sources from
two different locations. Considering that they do not have history to
move, just move them to frameworks/base/packages/Connectivity without
the commit history.

Bug: 171540887
Test: m
Change-Id: I1c7e83267014bff29eb938c002d6441332101248

* changes:
  [NFCT.TETHER.8] Prepare the upstream information for IPv4 offload rule
  [NFCT.TETHER.7] Prepare the downstream information for IPv4 offload rule

We want connection establishment/shutdown to flow through
the kernel code path so connection tracking state is at least
somewhat correct.

Test: atest, TreeHugger
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Change-Id: Iee97baa65750188f3436937b16c9b320f0495a5a

Bug: 155176305
Change-Id: I62958d041a8f544dbd98d5434e97ce89f843c5cb

Build the upstream and upstream rules when the conntrack event is
received.

Test: atest TetheringCoverageTests
Change-Id: Ibb52c7b75812bd586091d809e260bc9206c06262