commit c8fb1a2530662adc9ec5d6282a6fd47cbe18fcd2
author KH Shi <kenghua@google.com> Tue Aug 08 15:30:45 2023 +0800
committer KH Shi <kenghua@google.com> Thu Aug 10 16:01:21 2023 +0800
tree 121505197848585833da0d3de4175a0421ae120c
parent cf0cc72629c279125a97e5eb7346912f7901f34b

bpf tethering offload - add src subnet to upstream ipv6 direction

This patch is based on aosp/2535559 from maze@.

Add source prefix into the upstream key such that only packets which
source IPv6 address matches it will be forwarded to the upstream
interface.

In this patch, the source prefix is set to zero so there is no
behavior changes. Next CL in patch series will use the real source
prefixes retrieved from upstream interface.

Test: atest TetheringTests
Bug: 261923493
Change-Id: I43d068a29b937c7dfeb6fab632a8effb47ee2263