commit 366348c5e80d818d4907b2ddc5f73231d1fa72f4
author Jimi Chen <jimictw@google.com> Tue May 21 14:45:48 2024 +0000
committer Yuyang Huang <yuyanghuang@google.com> Mon Jun 03 18:40:18 2024 +0900
tree cc5f61fced22241868a46b5fb7c4a699e987098b
parent fd1f0bcfc2a5b8641087383e9ad1f1c75b68515f

Implement NS filter in APFv6

The program does some basic NS packet validation mentioned in RFC 2461,
7.1.1.
  - IP hop limit has a value 255
  - ICMP code is 0
  - ICMP length is larger than 24

Pass and increase the counters that NS filter doesn't handle
  - ICMP length is larger then 32 (includes multiple ICMPv6 options)
  - target address is not interface's ip (request for other host)

Bug: 337807604
Test: atest NetworkStackTests:android.net.apf.ApfNewTest
Change-Id: I139cbf5aa659f0632ca5b78309904ea304296008