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[thread-cert] refactor case 5.5.1 using pktverify (#5827)
This commit is contained in:
Jing Ma
@@ -34,19 +34,41 @@ import command
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import config
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import mle
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import thread_cert
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from pktverify.consts import MLE_PARENT_REQUEST, MLE_LINK_REQUEST, MLE_LINK_ACCEPT, MLE_LINK_ACCEPT_AND_REQUEST, SOURCE_ADDRESS_TLV, CHALLENGE_TLV, RESPONSE_TLV, LINK_LAYER_FRAME_COUNTER_TLV, ROUTE64_TLV, ADDRESS16_TLV, LEADER_DATA_TLV, TLV_REQUEST_TLV, VERSION_TLV
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from pktverify.packet_verifier import PacketVerifier
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from pktverify.null_field import nullField
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DUT_LEADER = 1
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DUT_ROUTER1 = 2
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# Test Purpose and Description:
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# -----------------------------
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# The purpose of this test case is to show that when the Leader is rebooted for a time period shorter than the leader timeout, it does not trigger network partitioning and remains the leader when it reattaches to the network.
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#
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# Test Topology:
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# -------------
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# Leader
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# |
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# Router
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#
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# DUT Types:
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# ----------
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# Leader
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# Router
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class Cert_5_5_1_LeaderReboot(thread_cert.TestCase):
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#USE_MESSAGE_FACTORY = False
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TOPOLOGY = {
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DUT_LEADER: {
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'name': 'LEADER',
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'mode': 'rdn',
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'panid': 0xface,
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'allowlist': [DUT_ROUTER1]
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},
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DUT_ROUTER1: {
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'name': 'ROUTER',
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'mode': 'rdn',
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'panid': 0xface,
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'router_selection_jitter': 1,
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@@ -59,7 +81,6 @@ class Cert_5_5_1_LeaderReboot(thread_cert.TestCase):
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self.nodes[DUT_LEADER].enable_allowlist()
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def test(self):
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# 1 ALL: Build and verify the topology
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self.nodes[DUT_LEADER].start()
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self.simulator.go(5)
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self.assertEqual(self.nodes[DUT_LEADER].get_state(), 'leader')
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@@ -68,91 +89,131 @@ class Cert_5_5_1_LeaderReboot(thread_cert.TestCase):
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self.simulator.go(5)
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self.assertEqual(self.nodes[DUT_ROUTER1].get_state(), 'router')
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# 2 DUT_LEADER, DUT_ROUTER1: Verify both DUT_LEADER and DUT_ROUTER1
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# send MLE Advertisement message
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leader_messages = self.simulator.get_messages_sent_by(DUT_LEADER)
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msg = leader_messages.next_mle_message(mle.CommandType.ADVERTISEMENT)
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command.check_mle_advertisement(msg)
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router1_messages = self.simulator.get_messages_sent_by(DUT_ROUTER1)
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msg = router1_messages.next_mle_message(mle.CommandType.ADVERTISEMENT)
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command.check_mle_advertisement(msg)
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# Send a harness helper ping to the DUT
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router1_rloc = self.nodes[DUT_ROUTER1].get_ip6_address(config.ADDRESS_TYPE.RLOC)
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self.assertTrue(self.nodes[DUT_LEADER].ping(router1_rloc))
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leader_rloc = self.nodes[DUT_LEADER].get_ip6_address(config.ADDRESS_TYPE.RLOC)
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self.assertTrue(self.nodes[DUT_ROUTER1].ping(leader_rloc))
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# 3 DUT_LEADER: Reset DUT_LEADER
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leader_rloc16 = self.nodes[DUT_LEADER].get_addr16()
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self.nodes[DUT_LEADER].reset()
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self.assertFalse(self.nodes[DUT_ROUTER1].ping(leader_rloc))
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self._setUpLeader()
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# Clean sniffer's buffer
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self.simulator.get_messages_sent_by(DUT_LEADER)
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self.simulator.get_messages_sent_by(DUT_ROUTER1)
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# DUT_LEADER sleep time is less than leader timeout value
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self.simulator.go(config.MAX_ADVERTISEMENT_INTERVAL)
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# Verify DUT_LEADER didn't send MLE Advertisement messages
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leader_messages = self.simulator.get_messages_sent_by(DUT_LEADER)
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msg = leader_messages.next_mle_message(mle.CommandType.ADVERTISEMENT, False)
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self.assertTrue(msg is None)
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self.nodes[DUT_LEADER].start()
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# Verify the DUT_LEADER is still a leader
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self.simulator.go(5)
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self.assertEqual(self.nodes[DUT_LEADER].get_state(), 'leader')
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self.assertEqual(self.nodes[DUT_LEADER].get_addr16(), leader_rloc16)
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# 4 DUT_LEADER: Verify DUT_LEADER sent a multicast Link Request message
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leader_messages = self.simulator.get_messages_sent_by(DUT_LEADER)
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leader_messages_temp = copy.deepcopy(leader_messages)
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msg = leader_messages.next_mle_message(mle.CommandType.LINK_REQUEST)
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command.check_link_request(
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msg,
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tlv_request_address16=command.CheckType.CONTAIN,
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tlv_request_route64=command.CheckType.CONTAIN,
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)
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# 5 DUT_ROUTER1: Verify DUT_ROUTER1 replied with Link Accept message
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router1_messages = self.simulator.get_messages_sent_by(DUT_ROUTER1)
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router1_messages_temp = copy.deepcopy(router1_messages)
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msg = router1_messages.next_mle_message(mle.CommandType.LINK_ACCEPT)
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if msg is not None:
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command.check_link_accept(
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msg,
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self.nodes[DUT_LEADER],
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address16=command.CheckType.CONTAIN,
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leader_data=command.CheckType.CONTAIN,
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route64=command.CheckType.CONTAIN,
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)
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else:
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msg = router1_messages_temp.next_mle_message(mle.CommandType.LINK_ACCEPT_AND_REQUEST)
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self.assertTrue(msg is not None)
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command.check_link_accept(
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msg,
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self.nodes[DUT_LEADER],
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address16=command.CheckType.CONTAIN,
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leader_data=command.CheckType.CONTAIN,
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route64=command.CheckType.CONTAIN,
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challenge=command.CheckType.CONTAIN,
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)
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# 6 DUT_LEADER: Verify DUT_LEADER didn't send a Parent Request message
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msg = leader_messages_temp.next_mle_message(mle.CommandType.PARENT_REQUEST, False)
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self.assertTrue(msg is None)
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# 7 ALL: Verify connectivity by sending an ICMPv6 Echo Request from
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# DUT_LEADER to DUT_ROUTER1 link local address
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router1_link_local_address = self.nodes[DUT_ROUTER1].get_ip6_address(config.ADDRESS_TYPE.LINK_LOCAL)
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self.assertTrue(self.nodes[DUT_LEADER].ping(router1_link_local_address))
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def verify(self, pv):
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pkts = pv.pkts
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pv.summary.show()
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LEADER = pv.vars['LEADER']
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ROUTER = pv.vars['ROUTER']
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# Step 1: Verify topology is formed correctly.
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pv.verify_attached('ROUTER', 'LEADER')
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# Step 2: The DUT MUST send properly formatted MLE Advertisements with
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# an IP Hop Limit of 255 to the Link-Local All Nodes multicast
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# address (FF02::1).
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# The following TLVs MUST be present in the MLE Advertisements:
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# - Leader Data TLV
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# - Route64 TLV
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# - Source Address TLV
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with pkts.save_index():
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pkts.filter_wpan_src64(LEADER).\
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filter_mle_advertisement('Leader').\
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must_next()
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pkts.filter_wpan_src64(ROUTER).\
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filter_mle_advertisement('Router').\
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must_next()
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pkts.filter_ping_request().\
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filter_wpan_src64(ROUTER).\
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must_next()
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lstart = pkts.index
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# Step 4: The Leader MUST send a multicast Link Request
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# The following TLVs MUST be present in the Link Request:
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# - Challenge TLV
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# - Version TLV
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# - TLV Request TLV: Address16 TLV, Route64 TLV
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pkts.filter_wpan_src64(LEADER).\
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filter_LLARMA().\
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filter_mle_cmd(MLE_LINK_REQUEST).\
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filter(lambda p: {
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CHALLENGE_TLV,
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VERSION_TLV,
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TLV_REQUEST_TLV,
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ADDRESS16_TLV,
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ROUTE64_TLV
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} <= set(p.mle.tlv.type) and\
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p.mle.tlv.addr16 is nullField and\
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p.mle.tlv.route64.id_mask is nullField
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).\
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must_next()
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lend = pkts.index
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# Step 3: Reset Leader. The Leader MUST stop sending MLE advertisements.
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# The Leader reboot time MUST be less than Leader Timeout value
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pkts.range(lstart, lend).\
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filter_wpan_src64(LEADER).\
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filter_mle_advertisement('Leader').\
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must_not_next()
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# Step 5: Router MUST reply with a Link Accept
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# The following TLVs MUST be present in the Link Accept:
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# - Leader Data TLV
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# - Link-layer Frame Counter TLV
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# - Response TLV
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# - Source Address TLV
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# - Address16 TLV
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# - Route64 TLV
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# - Version TLV
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# - Challenge TLV (situational)
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# - MLE Frame Counter TLV (optional)
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# The Challenge TLV MUST be included
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# if the response is an Accept and Request message.
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_pkt = pkts.filter_wpan_src64(ROUTER).\
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filter_wpan_dst64(LEADER).\
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filter_mle_cmd2(MLE_LINK_ACCEPT, MLE_LINK_ACCEPT_AND_REQUEST).\
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filter(lambda p: {
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LEADER_DATA_TLV,
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LINK_LAYER_FRAME_COUNTER_TLV,
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RESPONSE_TLV,
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SOURCE_ADDRESS_TLV,
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ADDRESS16_TLV,
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ROUTE64_TLV,
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VERSION_TLV
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} <= set(p.mle.tlv.type) and\
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p.mle.tlv.addr16 is not nullField and\
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p.mle.tlv.route64.id_mask is not nullField
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).\
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must_next()
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if _pkt.mle.cmd == MLE_LINK_ACCEPT_AND_REQUEST:
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_pkt.must_verify(lambda p: {CHALLENGE_TLV} <= set(p.mle.tlv.type))
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# Step 7: Router_1 MUST respond with an ICMPv6 Echo Reply
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_pkt = pkts.filter_ping_request().\
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filter_wpan_src64(LEADER).\
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filter_wpan_dst64(ROUTER).\
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must_next()
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lend2 = pkts.index
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pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\
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filter_wpan_src64(ROUTER).\
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filter_wpan_dst64(LEADER).\
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must_next()
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# Step 6: The Leader MUST NOT send a Parent Request after it is re-enabled.
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pkts.range(lend, lend2).\
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filter_wpan_src64(LEADER).\
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filter_mle_cmd(MLE_PARENT_REQUEST).\
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must_not_next()
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if __name__ == '__main__':
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unittest.main()
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