tree b4fce3cb71f8a07551d63fce2d8f636ec2b861f6
parent b2d32b74710f3f523fc1b008e4a18d6c24260044
author Motomu Utsumi <motomuman@google.com> 1659508723 +0000
committer Motomu Utsumi <motomuman@google.com> 1660017602 +0000

Switch previous and new code path in addUidInterfaceRules

addUidInterfaceRules was updated to use Java BpfMap class instead of native JNI
functions in aosp/2141538.
But it is better to verify this refactoring by the experiment.
So this commit update addUidInterfaceRules to switch previous code path(JNI)
and new code path(Java) based on the flag.

Also this commit removes @GuardedBy("sUidOwnerMap") from
native_addUidInterfaceRules.
This was needed to avoid JNI and Java code modify the UidOwnerMap
concurrently when some API uses previous code path (JNI) and other APIs
use new code path (Java BpfMap class).
But, after this topic, it will not be needed because all the APIs will use JNI
"or" all the APIs will use Java BpfMap class to update UidOwnerMap.

Bug: 217624062
Test: atest BpfNetMapsTest HostsideVpnTests#testBlockIncomingPacket
Change-Id: Idb6400ed5808f8c5f4b0a962a356ac3850fbcff3