From 8e8bbcabdeb6c394a70e70580734d7324bc2d29d Mon Sep 17 00:00:00 2001
From: Jimi Chen <jimictw@google.com>
Date: Thu, 20 Mar 2025 10:54:12 +0000
Subject: [PATCH] Add IPv6 neighbor solicitation offload for APFv6
 multi-devices tests

Test: m connectivity_multi_devices_snippet && atest CtsConnectivityMultiDevicesTestCases
Change-Id: I97f6a60ddfa3dcaf4aee0ea1db83cc9636031a54
---
 tests/cts/multidevices/apfv6_test.py | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/tests/cts/multidevices/apfv6_test.py b/tests/cts/multidevices/apfv6_test.py
index 9a1e225bab..ee2368d823 100644
--- a/tests/cts/multidevices/apfv6_test.py
+++ b/tests/cts/multidevices/apfv6_test.py
@@ -22,6 +22,10 @@ from scapy.layers.inet6 import (
     ICMPv6MLQuery2,
     ICMPv6MLReport2,
     ICMPv6MLDMultAddrRec,
+    ICMPv6NDOptSrcLLAddr,
+    ICMPv6NDOptDstLLAddr,
+    ICMPv6ND_NS,
+    ICMPv6ND_NA,
     RouterAlert
 )
 from scapy.layers.l2 import Ether
@@ -96,6 +100,24 @@ class ApfV6Test(apf_test_base.ApfTestBase):
             arp_request, "DROPPED_ARP_REQUEST_REPLIED", arp_reply
         )
 
+    def test_non_dad_ipv6_neighbor_solicitation_offload(self):
+        eth = Ether(src=self.server_mac_address, dst=self.client_mac_address)
+        ip = IPv6(src=self.server_ipv6_addresses[0], dst=self.client_ipv6_addresses[0])
+        icmpv6 = ICMPv6ND_NS(tgt=self.client_ipv6_addresses[0])
+        opt = ICMPv6NDOptSrcLLAddr(lladdr=self.server_mac_address)
+        neighbor_solicitation = bytes(eth/ip/icmpv6/opt).hex()
+
+        eth = Ether(src=self.client_mac_address, dst=self.server_mac_address)
+        ip = IPv6(src=self.client_ipv6_addresses[0], dst=self.server_ipv6_addresses[0])
+        icmpv6 = ICMPv6ND_NA(tgt=self.client_ipv6_addresses[0], R=1, S=1, O=1)
+        opt = ICMPv6NDOptDstLLAddr(lladdr=self.client_mac_address)
+        expected_neighbor_advertisement = bytes(eth/ip/icmpv6/opt).hex()
+        self.send_packet_and_expect_reply_received(
+            neighbor_solicitation,
+            "DROPPED_IPV6_NS_REPLIED_NON_DAD",
+            expected_neighbor_advertisement
+        )
+
     @apf_utils.at_least_B()
     def test_ipv4_icmp_echo_request_offload(self):
         eth = Ether(src=self.server_mac_address, dst=self.client_mac_address)