[nexus] add MATN-TC-04 test case for multicast listener timeout (#12692)

Add MATN-TC-04 test case to verify that a Primary BBR removes a
multicast listener entry when it expires by timeout.

- Add test_1_2_MATN_TC_4.cpp implementing the simulation of two
  Border Routers (BR_1 as Primary BBR, BR_2), a Router, and a Host.
- Verify that a registered multicast address expires after the
  configured MLR timeout and that the BBR stops forwarding traffic
  to the group.
- Verify that a new registration to the same group is accepted
  after the previous one has expired.
- Use direct method calls for BBR configuration and management.
- Add verify_1_2_MATN_TC_4.py for automated packet verification.
- Fix a loopback issue in nexus_core.cpp where infra-if packets
  were being delivered back to the sender.
- Register the new test case in tests/nexus/CMakeLists.txt and
  tests/nexus/run_nexus_tests.sh.
This commit is contained in:
Jonathan Hui
2026-03-16 16:27:50 -05:00
committed by GitHub
parent 0d4a43ab8d
commit 27c7a546d2
5 changed files with 638 additions and 0 deletions
+1
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@@ -237,6 +237,7 @@ ot_nexus_test(1_2_LP_7_2_2 "cert;nexus")
ot_nexus_test(1_2_MATN_TC_1 "cert;nexus")
ot_nexus_test(1_2_MATN_TC_2 "cert;nexus")
ot_nexus_test(1_2_MATN_TC_3 "cert;nexus")
ot_nexus_test(1_2_MATN_TC_4 "cert;nexus")
# Misc tests
ot_nexus_test(border_admitter "core;nexus")
+5
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@@ -556,6 +556,11 @@ void Core::ProcessInfraIf(Node &aNode)
for (Node &rxNode : mNodes)
{
if (&rxNode == &aNode)
{
continue;
}
if (targetNode != nullptr && &rxNode != targetNode)
{
continue;
+1
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@@ -172,6 +172,7 @@ DEFAULT_TESTS=(
"1_2_MATN_TC_1"
"1_2_MATN_TC_2"
"1_2_MATN_TC_3"
"1_2_MATN_TC_4"
)
# Use provided arguments or the default test list
+384
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@@ -0,0 +1,384 @@
/*
* Copyright (c) 2026, The OpenThread Authors.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdio.h>
#include "platform/nexus_core.hpp"
#include "platform/nexus_node.hpp"
namespace ot {
namespace Nexus {
/**
* Time to advance for a node to form a network and become leader, in milliseconds.
*/
static constexpr uint32_t kFormNetworkTime = 10 * 1000;
/**
* Time to advance for a node to join as a router, in milliseconds.
*/
static constexpr uint32_t kAttachToRouterTime = 200 * 1000;
/**
* Time to advance for the network to stabilize, in milliseconds.
*/
static constexpr uint32_t kStabilizationTime = 10 * 1000;
/**
* Time to advance for MLR registration, in milliseconds.
*/
static constexpr uint32_t kMlrRegistrationTime = 5 * 1000;
/**
* Time to advance for ICMPv6 Echo Reply, in milliseconds.
*/
static constexpr uint32_t kEchoReplyWaitTime = 5000;
/**
* ICMPv6 Echo Request payload size.
*/
static constexpr uint16_t kEchoPayloadSize = 10;
/**
* ICMPv6 Echo Request identifier.
*/
static constexpr uint16_t kEchoIdentifier = 0x1234;
/**
* MLR_TIMEOUT_MIN in seconds.
*/
static constexpr uint32_t kMlrTimeoutMin = 300;
/**
* Buffer time after timeout expiry, in seconds.
*/
static constexpr uint32_t kTimeoutBufferTime = 2;
/**
* Backbone Router Sequence Number.
*/
static constexpr uint8_t kBbrSequenceNumber = 100;
/**
* Multicast address MA1.
*/
static const char kMA1[] = "ff04::1234:777a:1";
void Test1_2_MATN_TC_4(void)
{
/**
* 5.10.4 MATN-TC-04: Removal of multicast listener by timeout expiry
*
* 5.10.4.1 Topology
* - BR_1 (DUT)
* - BR_2
* - Router
* - Host
*
* 5.10.4.2 Purpose & Description
* The purpose of this test case is to verify that a Primary BBR can remove an entry from a Multicast Listeners
* Table, when the entry expires. The test case also verifies that the Primary BBR accepts a new registration to
* the previously expired multicast group.
*
* Spec Reference | V1.2 Section
* -------------------------|-------------
* Multicast Listener Table | 5.10.4
*/
Core nexus;
Node &br1 = nexus.CreateNode();
Node &br2 = nexus.CreateNode();
Node &router = nexus.CreateNode();
Node &host = nexus.CreateNode();
Ip6::Address ma1;
br1.SetName("BR_1");
br2.SetName("BR_2");
router.SetName("Router");
host.SetName("Host");
SuccessOrQuit(ma1.FromString(kMA1));
nexus.AdvanceTime(0);
Instance::SetLogLevel(kLogLevelNote);
Log("Step 0: Topology formation - BR_1 (DUT). Boot DUT. Configure the MLR timeout value of the DUT to be "
"MLR_TIMEOUT_MIN seconds.");
/**
* Step 0
* - Device: BR_1 (DUT)
* - Description: Topology formation - BR_1 (DUT). Boot DUT. Configure the MLR timeout value of the DUT to be
* MLR_TIMEOUT_MIN seconds.
* - Pass Criteria:
* - N/A
*/
br1.AllowList(br2);
br1.AllowList(router);
br2.AllowList(br1);
br2.AllowList(router);
router.AllowList(br1);
router.AllowList(br2);
br1.Form();
nexus.AdvanceTime(kFormNetworkTime);
VerifyOrQuit(br1.Get<Mle::Mle>().IsLeader());
br1.Get<BorderRouter::InfraIf>().Init(1, true);
br1.Get<BorderRouter::RoutingManager>().Init();
SuccessOrQuit(br1.Get<BorderRouter::RoutingManager>().SetEnabled(true));
br1.Get<BackboneRouter::Local>().SetEnabled(true);
{
BackboneRouter::Config config;
br1.Get<BackboneRouter::Local>().GetConfig(config);
config.mMlrTimeout = kMlrTimeoutMin;
config.mSequenceNumber = kBbrSequenceNumber;
SuccessOrQuit(br1.Get<BackboneRouter::Local>().SetConfig(config));
}
Log("Step 0 (cont.): Topology formation - BR_2, Router");
/**
* Step 0 (cont.)
* - Device: N/A
* - Description: Topology formation - BR_2, Router
* - Pass Criteria:
* - N/A
*/
router.Join(br1, Node::kAsFtd);
br2.Join(br1, Node::kAsFtd);
nexus.AdvanceTime(kAttachToRouterTime);
VerifyOrQuit(router.Get<Mle::Mle>().IsRouter());
VerifyOrQuit(br2.Get<Mle::Mle>().IsRouter());
br2.Get<BorderRouter::InfraIf>().Init(1, true);
br2.Get<BorderRouter::RoutingManager>().Init();
SuccessOrQuit(br2.Get<BorderRouter::RoutingManager>().SetEnabled(true));
br2.Get<BackboneRouter::Local>().SetEnabled(true);
{
BackboneRouter::Config config;
br2.Get<BackboneRouter::Local>().GetConfig(config);
config.mMlrTimeout = kMlrTimeoutMin;
config.mSequenceNumber = kBbrSequenceNumber;
SuccessOrQuit(br2.Get<BackboneRouter::Local>().SetConfig(config));
}
nexus.AdvanceTime(kStabilizationTime * 10);
VerifyOrQuit(br1.Get<BackboneRouter::Local>().IsPrimary());
VerifyOrQuit(!br2.Get<BackboneRouter::Local>().IsPrimary());
const Ip6::Address *hostUla = &host.mInfraIf.FindMatchingAddress("fd00::/8");
nexus.AddTestVar("MA1", kMA1);
nexus.AddTestVar("HOST_BACKBONE_ULA", hostUla->ToString().AsCString());
Log("Step 1: Harness instructs the device to register multicast address, MA1");
/**
* Step 1
* - Device: Router
* - Description: Harness instructs the device to register multicast address, MA1
* - Pass Criteria:
* - N/A
* - Note: Checks for BLMR.ntf are intentionally skipped.
*/
SuccessOrQuit(router.Get<Ip6::Netif>().SubscribeExternalMulticast(ma1));
nexus.AdvanceTime(kMlrRegistrationTime);
// Force the entry to have 300s timeout in BR_1's table, overriding whatever the Router requested.
SuccessOrQuit(br1.Get<BackboneRouter::Manager>().GetMulticastListenersTable().Add(
ma1, TimerMilli::GetNow() + TimeMilli::SecToMsec(kMlrTimeoutMin)));
Log("Step 2: Harness instructs the device to sends an ICMPv6 Echo (ping) Request packet to the multicast address, "
"MA1.");
/**
* Step 2
* - Device: Host
* - Description: Harness instructs the device to sends an ICMPv6 Echo (ping) Request packet to the multicast
* address, MA1.
* - Pass Criteria:
* - N/A
*/
host.mInfraIf.SendEchoRequest(*hostUla, ma1, kEchoIdentifier, kEchoPayloadSize);
nexus.AdvanceTime(0);
Log("Step 3: Automatically forwards the ping request packet to its Thread Network.");
/**
* Step 3
* - Device: BR_1 (DUT)
* - Description: Automatically forwards the ping request packet to its Thread Network.
* - Pass Criteria:
* - The DUT MUST forward the ICMPv6 Echo (ping) Request packet with multicast address, MA1, to its Thread Network
* encapsulated in an MPL packet.
*/
nexus.AdvanceTime(kEchoReplyWaitTime);
Log("Step 4: Receives the MPL packet containing an encapsulated ping request packet to MA1, sent by Host, and "
"automatically unicasts an ICMPv6 Echo (ping) Reply packet back to Host.");
/**
* Step 4
* - Device: Router
* - Description: Receives the MPL packet containing an encapsulated ping request packet to MA1, sent by Host, and
* automatically unicasts an ICMPv6 Echo (ping) Reply packet back to Host.
* - Pass Criteria:
* - N/A
*/
nexus.AdvanceTime(kEchoReplyWaitTime);
Log("Step 5: Harness instructs the device to stop listening to the multicast address, MA1.");
/**
* Step 5
* - Device: Router
* - Description: Harness instructs the device to stop listening to the multicast address, MA1.
* - Pass Criteria:
* - N/A
*/
router.Get<Mle::Mle>().Stop();
nexus.AdvanceTime(kStabilizationTime);
Log("Step 6: After (MLR_TIMEOUT_MIN+2) seconds, the DUT automatically multicasts MLDv2 message to deregister from "
"multicast group MA1.");
/**
* Step 6
* - Device: BR_1 (DUT)
* - Description: After (MLR_TIMEOUT_MIN+2) seconds, the DUT automatically multicasts MLDv2 message to deregister
* from multicast group MA1.
* - Pass Criteria:
* - The DUT MUST multicast an MLDv2 message of type “Version 2 Multicast Listener Report” (see [RFC 3810] Section
* 5.2). Where: Nr of Mcast Address Records (M): at least 1.
* - The Multicast Address Record [1] contains the following: Record Type: 3 (CHANGE_TO_INCLUDE_MODE), Number of
* Sources (N): 0, Multicast Address: MA1.
* - The message MUST occur after MLR_TIMEOUT_MIN+2) seconds [after what].
* - Note: Checks for MLDv2 are intentionally skipped.
*/
nexus.AdvanceTime((kMlrTimeoutMin + kTimeoutBufferTime) * 1000);
Log("Step 7: Harness instructs the device to send an ICMPv6 Echo (ping) Request packet to the multicast address, "
"MA1.");
/**
* Step 7
* - Device: Host
* - Description: Harness instructs the device to send an ICMPv6 Echo (ping) Request packet to the multicast
* address, MA1.
* - Pass Criteria:
* - N/A
*/
host.mInfraIf.SendEchoRequest(*hostUla, ma1, kEchoIdentifier, kEchoPayloadSize);
nexus.AdvanceTime(0);
Log("Step 8: Does not forward the ping request packet to its Thread Network.");
/**
* Step 8
* - Device: BR_1 (DUT)
* - Description: Does not forward the ping request packet to its Thread Network.
* - Pass Criteria:
* - The DUT MUST NOT forward the ICMPv6 Echo (ping) Request packet with multicast address, MA1, to its Thread
* Network.
*/
nexus.AdvanceTime(kEchoReplyWaitTime);
Log("Step 9: Harness instructs the device to register multicast address, MA1, at BR_1");
/**
* Step 9
* - Device: Router
* - Description: Harness instructs the device to register multicast address, MA1, at BR_1
* - Pass Criteria:
* - N/A
* - Note: Checks for BLMR.ntf are intentionally skipped.
*/
SuccessOrQuit(router.Get<Mle::Mle>().Start());
router.Join(br1, Node::kAsFtd);
nexus.AdvanceTime(kAttachToRouterTime);
if (!router.Get<Ip6::Netif>().IsMulticastSubscribed(ma1))
{
SuccessOrQuit(router.Get<Ip6::Netif>().SubscribeExternalMulticast(ma1));
}
nexus.AdvanceTime(kMlrRegistrationTime);
Log("Step 10: Harness instructs the device to send an ICMPv6 Echo (ping) Request packet to the multicast address, "
"MA1.");
/**
* Step 10
* - Device: Host
* - Description: Harness instructs the device to send an ICMPv6 Echo (ping) Request packet to the multicast
* address, MA1.
* - Pass Criteria:
* - N/A
*/
host.mInfraIf.SendEchoRequest(*hostUla, ma1, kEchoIdentifier, kEchoPayloadSize);
nexus.AdvanceTime(0);
Log("Step 11: Automatically forwards the ping request packet to its Thread Network.");
/**
* Step 11
* - Device: BR_1 (DUT)
* - Description: Automatically forwards the ping request packet to its Thread Network.
* - Pass Criteria:
* - The DUT MUST forward the ICMPv6 Echo (ping) Request packet with multicast address, MA1, to its Thread Network
* encapsulated in an MPL packet.
*/
nexus.AdvanceTime(kEchoReplyWaitTime);
Log("Step 12: Receives the MPL packet containing an encapsulated ping request packet to MA1, sent by Host, and "
"automatically unicasts an ICMPv6 Echo (ping) Reply packet back to Host.");
/**
* Step 12
* - Device: Router
* - Description: Receives the MPL packet containing an encapsulated ping request packet to MA1, sent by Host, and
* automatically unicasts an ICMPv6 Echo (ping) Reply packet back to Host.
* - Pass Criteria:
* - N/A
*/
nexus.AdvanceTime(kEchoReplyWaitTime);
nexus.SaveTestInfo("test_1_2_MATN_TC_4.json");
}
} // namespace Nexus
} // namespace ot
int main(void)
{
ot::Nexus::Test1_2_MATN_TC_4();
printf("All tests passed\n");
return 0;
}
+247
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@@ -0,0 +1,247 @@
#!/usr/bin/env python3
#
# Copyright (c) 2026, The OpenThread Authors.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. Neither the name of the copyright holder nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
import sys
import os
import struct
# Add the current directory to sys.path to find verify_utils
CUR_DIR = os.path.dirname(os.path.abspath(__file__))
sys.path.append(CUR_DIR)
import verify_utils
from pktverify.addrs import Ipv6Addr
from pktverify.bytes import Bytes
ST_MLR_SUCCESS = 0
def verify(pv):
# 5.10.4 MATN-TC-04: Removal of multicast listener by timeout expiry
#
# 5.10.4.1 Topology
# - BR_1 (DUT)
# - BR_2
# - Router
# - Host
#
# 5.10.4.2 Purpose & Description
# The purpose of this test case is to verify that a Primary BBR can remove an entry from a Multicast Listeners
# Table, when the entry expires. The test case also verifies that the Primary BBR accepts a new registration to
# the previously expired multicast group.
#
# Spec Reference | V1.2 Section
# -------------------------|-------------
# Multicast Listener Table | 5.10.4
pkts = pv.pkts
vars = pv.vars
def _is_from_br1(p):
try:
if p.ipv6.src == vars['BR_1_RLOC']:
return True
if p.ipv6.opt.mpl.flag.s == 1 and\
p.ipv6.opt.mpl.seed_id == Bytes(struct.pack('>H', vars['BR_1_RLOC16'])):
return True
except (AttributeError, KeyError):
pass
return False
def _verify_br1_forwards_ping():
# The packet is forwarded as MPL-encapsulated ICMPv6 Echo Request to ff03::fc
pkts.filter_wpan_src64(vars['BR_1']).\
filter_ping_request().\
filter(lambda p: p.ipv6.dst == 'ff03::fc' or\
p.ipv6.dst == Ipv6Addr(vars['MA1'])).\
filter(_is_from_br1).\
must_next()
def _verify_br1_does_not_forward_ping():
# We only check for a limited range of packets to avoid finding the forwarded ping from later steps.
start_idx = pkts.index
stop_idx = (min(start_idx[0] + 100, len(pkts)), min(start_idx[1] + 100, len(pkts)))
pkts.range(start_idx, stop_idx).\
filter_wpan_src64(vars['BR_1']).\
filter_ping_request().\
filter(lambda p: p.ipv6.dst == 'ff03::fc' or\
p.ipv6.dst == Ipv6Addr(vars['MA1'])).\
filter(_is_from_br1).\
must_not_next()
# Step 0
# - Device: BR_1 (DUT)
# - Description: Topology formation BR_1 (DUT). Boot DUT. Configure the MLR timeout value of the DUT to be
# MLR_TIMEOUT_MIN seconds.
# - Pass Criteria:
# - N/A
print("Step 0: Topology formation - BR_1 (DUT).")
# Step 0 (cont.)
# - Device: N/A
# - Description: Topology formation BR_2, Router
# - Pass Criteria:
# - N/A
print("Step 0 (cont.): Topology formation - BR_2, Router.")
# Step 1
# - Device: Router
# - Description: Harness instructs the device to register multicast address, MA1
# - Pass Criteria:
# - N/A
# - Note: Checks for BLMR.ntf are intentionally skipped.
print("Step 1: Router registers multicast address, MA1.")
pkts.filter_coap_request('/n/mr').\
filter(lambda p: p.ipv6.dst == Ipv6Addr(vars['BR_1_RLOC']) or\
Ipv6Addr(p.ipv6.dst).endswith(Bytes('000000fffe00fc01'))).\
filter(lambda p: vars['MA1'] in p.coap.tlv.ipv6_address).\
must_next()
# Step 2
# - Device: Host
# - Description: Harness instructs the device to sends an ICMPv6 Echo (ping) Request packet to the multicast
# address, MA1.
# - Pass Criteria:
# - N/A
print("Step 2: Host sends an ICMPv6 Echo (ping) Request packet to the multicast address, MA1.")
pkts.filter_ping_request().\
filter(lambda p: p.ipv6.dst == Ipv6Addr(vars['MA1'])).\
filter(lambda p: p.ipv6.src == Ipv6Addr(vars['HOST_BACKBONE_ULA'])).\
must_next()
# Step 3
# - Device: BR_1 (DUT)
# - Description: Automatically forwards the ping request packet to its Thread Network.
# - Pass Criteria:
# - The DUT MUST forward the ICMPv6 Echo (ping) Request packet with multicast address, MA1, to its Thread Network
# encapsulated in an MPL packet.
print("Step 3: BR_1 automatically forwards the ping request packet to its Thread Network.")
_verify_br1_forwards_ping()
# Step 4
# - Device: Router
# - Description: Receives the MPL packet containing an encapsulated ping request packet to MA1, sent by Host, and
# automatically unicasts an ICMPv6 Echo (ping) Reply packet back to Host.
# - Pass Criteria:
# - N/A
print("Step 4: Router automatically unicasts an ICMPv6 Echo (ping) Reply packet back to Host.")
pkts.filter_ping_reply().\
filter(lambda p: p.ipv6.dst == Ipv6Addr(vars['HOST_BACKBONE_ULA'])).\
must_next()
# Step 5
# - Device: Router
# - Description: Harness instructs the device to stop listening to the multicast address, MA1.
# - Pass Criteria:
# - N/A
print("Step 5: Router stops listening to the multicast address, MA1.")
# Step 6
# - Device: BR_1 (DUT)
# - Description: After (MLR_TIMEOUT_MIN+2) seconds, the DUT automatically multicasts MLDv2 message to deregister
# from multicast group MA1.
# - Pass Criteria:
# - The DUT MUST multicast an MLDv2 message of type “Version 2 Multicast Listener Report” (see [RFC 3810] Section
# 5.2). Where: Nr of Mcast Address Records (M): at least 1.
# - The Multicast Address Record [1] contains the following: Record Type: 3 (CHANGE_TO_INCLUDE_MODE), Number of
# Sources (N): 0, Multicast Address: MA1.
# - The message MUST occur after MLR_TIMEOUT_MIN+2) seconds [after what].
# - Note: Checks for MLDv2 are intentionally skipped.
print("Step 6: After (MLR_TIMEOUT_MIN+2) seconds, the DUT automatically deregisters from multicast group MA1.")
# Step 6 is intentionally skipped: checks for MLDv2 are intentionally skipped.
# Step 7
# - Device: Host
# - Description: Harness instructs the device to send an ICMPv6 Echo (ping) Request packet to the multicast
# address, MA1.
# - Pass Criteria:
# - N/A
print("Step 7: Host sends an ICMPv6 Echo (ping) Request packet to the multicast address, MA1.")
pkts.filter_ping_request().\
filter(lambda p: p.ipv6.dst == Ipv6Addr(vars['MA1'])).\
filter(lambda p: p.ipv6.src == Ipv6Addr(vars['HOST_BACKBONE_ULA'])).\
must_next()
# Step 8
# - Device: BR_1 (DUT)
# - Description: Does not forward the ping request packet to its Thread Network.
# - Pass Criteria:
# - The DUT MUST NOT forward the ICMPv6 Echo (ping) Request packet with multicast address, MA1, to its Thread
# Network.
print("Step 8: BR_1 does not forward the ping request packet to its Thread Network.")
_verify_br1_does_not_forward_ping()
# Step 9
# - Device: Router
# - Description: Harness instructs the device to register multicast address, MA1, at BR_1
# - Pass Criteria:
# - N/A
# - Note: Checks for BLMR.ntf are intentionally skipped.
print("Step 9: Router registers multicast address, MA1, at BR_1.")
pkts.filter_coap_request('/n/mr').\
filter(lambda p: p.ipv6.dst == Ipv6Addr(vars['BR_1_RLOC']) or\
Ipv6Addr(p.ipv6.dst).endswith(Bytes('000000fffe00fc01'))).\
filter(lambda p: vars['MA1'] in p.coap.tlv.ipv6_address).\
must_next()
# Step 10
# - Device: Host
# - Description: Harness instructs the device to send an ICMPv6 Echo (ping) Request packet to the multicast
# address, MA1.
# - Pass Criteria:
# - N/A
print("Step 10: Host sends an ICMPv6 Echo (ping) Request packet to the multicast address, MA1.")
pkts.filter_ping_request().\
filter(lambda p: p.ipv6.dst == Ipv6Addr(vars['MA1'])).\
filter(lambda p: p.ipv6.src == Ipv6Addr(vars['HOST_BACKBONE_ULA'])).\
must_next()
# Step 11
# - Device: BR_1 (DUT)
# - Description: Automatically forwards the ping request packet to its Thread Network.
# - Pass Criteria:
# - The DUT MUST forward the ICMPv6 Echo (ping) Request packet with multicast address, MA1, to its Thread Network
# encapsulated in an MPL packet.
print("Step 11: BR_1 automatically forwards the ping request packet to its Thread Network.")
_verify_br1_forwards_ping()
# Step 12
# - Device: Router
# - Description: Receives the MPL packet containing an encapsulated ping request packet to MA1, sent by Host, and
# automatically unicasts an ICMPv6 Echo (ping) Reply packet back to Host.
# - Pass Criteria:
# - N/A
print("Step 12: Router automatically unicasts an ICMPv6 Echo (ping) Reply packet back to Host.")
pkts.filter_ping_reply().\
filter(lambda p: p.ipv6.dst == Ipv6Addr(vars['HOST_BACKBONE_ULA'])).\
must_next()
if __name__ == '__main__':
verify_utils.run_main(verify)