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[thread-cert] refactor case 5.2.6 using pktverify (#5777)

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This commit is contained in:
Jing Ma
2020-11-16 22:29:25 -08:00
committed by GitHub
parent 4e696af655
commit 1484847c55
1 changed files with 142 additions and 23 deletions
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tests/scripts/thread-cert/Cert_5_2_06_RouterDowngrade.py
+142 -23
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@@ -33,16 +33,39 @@ import command
import config
import mle
import thread_cert
import thread_cert
from pktverify.consts import MLE_PARENT_REQUEST, MLE_CHILD_ID_REQUEST, ADDR_REL_URI, SOURCE_ADDRESS_TLV, MODE_TLV, TIMEOUT_TLV, CHALLENGE_TLV, RESPONSE_TLV, LINK_LAYER_FRAME_COUNTER_TLV, ROUTE64_TLV, ADDRESS16_TLV, LEADER_DATA_TLV, NETWORK_DATA_TLV, TLV_REQUEST_TLV, SCAN_MASK_TLV, CONNECTIVITY_TLV, LINK_MARGIN_TLV, VERSION_TLV, ADDRESS_REGISTRATION_TLV, NL_MAC_EXTENDED_ADDRESS_TLV, NL_RLOC16_TLV, COAP_CODE_ACK
from pktverify.packet_verifier import PacketVerifier
from pktverify.null_field import nullField
LEADER = 1
DUT_ROUTER1 = 2
ROUTER2 = 3
ROUTER24 = 24
ROUTER23 = 24
# Test Purpose and Description:
# -----------------------------
# The purpose of this test case is to verify that the DUT will downgrade
# to a REED when the network becomes too dense and the Router Downgrade
# Threshold conditions are met.
#
# Test Topology:
# -------------
# Leader
# / \
# Router_1 [DUT] ... Router_23
#
# DUT Types:
# ----------
# Router
class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
USE_MESSAGE_FACTORY = False
TOPOLOGY = {
LEADER: {
'name': 'LEADER',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -50,11 +73,13 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
DUT_ROUTER1: {
'name': 'ROUTER_1',
'mode': 'rdn',
'panid': 0xface,
'router_selection_jitter': 1
},
ROUTER2: {
'name': 'ROUTER_2',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -62,6 +87,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
4: {
'name': 'ROUTER_3',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -69,6 +95,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
5: {
'name': 'ROUTER_4',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -76,6 +103,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
6: {
'name': 'ROUTER_5',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -83,6 +111,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
7: {
'name': 'ROUTER_6',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -90,6 +119,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
8: {
'name': 'ROUTER_7',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -97,6 +127,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
9: {
'name': 'ROUTER_8',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -104,6 +135,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
10: {
'name': 'ROUTER_9',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -111,6 +143,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
11: {
'name': 'ROUTER_10',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -118,6 +151,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
12: {
'name': 'ROUTER_11',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -125,6 +159,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
13: {
'name': 'ROUTER_12',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -132,6 +167,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
14: {
'name': 'ROUTER_13',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -139,6 +175,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
15: {
'name': 'ROUTER_14',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -146,6 +183,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
16: {
'name': 'ROUTER_15',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -153,6 +191,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
17: {
'name': 'ROUTER_16',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -160,6 +199,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
18: {
'name': 'ROUTER_17',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -167,6 +207,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
19: {
'name': 'ROUTER_18',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -174,6 +215,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
20: {
'name': 'ROUTER_19',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -181,6 +223,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
21: {
'name': 'ROUTER_20',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -188,6 +231,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
22: {
'name': 'ROUTER_21',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -195,13 +239,15 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
'router_upgrade_threshold': 32
},
23: {
'name': 'ROUTER_22',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
'router_selection_jitter': 1,
'router_upgrade_threshold': 32
},
ROUTER24: {
ROUTER23: {
'name': 'ROUTER_23',
'mode': 'rdn',
'panid': 0xface,
'router_downgrade_threshold': 32,
@@ -211,7 +257,7 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
}
def test(self):
# 1 Ensure topology is formed correctly without ROUTER24.
# 1 Ensure topology is formed correctly without ROUTER23.
self.nodes[LEADER].start()
self.simulator.go(5)
self.assertEqual(self.nodes[LEADER].get_state(), 'leader')
@@ -220,37 +266,110 @@ class Cert_5_2_06_RouterDowngrade(thread_cert.TestCase):
self.nodes[i].start()
self.simulator.go(5)
self.assertEqual(self.nodes[i].get_state(), 'router')
self.collect_rloc16s()
# This method flushes the message queue so calling this method again
# will return only the newly logged messages.
dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER1)
# 2 ROUTER24: Attach to network.
# All reference testbed devices have been configured with downgrade threshold as 32 except DUT_ROUTER1,
# so we don't need to ensure ROUTER24 has a better link quality on
# so we don't need to ensure ROUTER23 has a better link quality on
# posix.
self.nodes[ROUTER24].start()
self.nodes[ROUTER23].start()
self.simulator.go(5)
self.assertEqual(self.nodes[ROUTER24].get_state(), 'router')
self.assertEqual(self.nodes[ROUTER23].get_state(), 'router')
# 3 DUT_ROUTER1:
self.simulator.go(10)
self.assertEqual(self.nodes[DUT_ROUTER1].get_state(), 'child')
self.collect_rlocs()
# Verify it sent a Parent Request and Child ID Request.
dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER1)
dut_messages.next_mle_message(mle.CommandType.PARENT_REQUEST)
dut_messages.next_mle_message(mle.CommandType.CHILD_ID_REQUEST)
# Verify it sent an Address Release Message to the Leader when it
# attached as a child.
msg = dut_messages.next_coap_message('0.02')
command.check_address_release(msg, self.nodes[LEADER])
# 4 & 5
router1_rloc = self.nodes[DUT_ROUTER1].get_ip6_address(config.ADDRESS_TYPE.RLOC)
self.assertTrue(self.nodes[LEADER].ping(router1_rloc))
def verify(self, pv):
pkts = pv.pkts
pv.summary.show()
LEADER = pv.vars['LEADER']
LEADER_RLOC = pv.vars['LEADER_RLOC']
ROUTER_1 = pv.vars['ROUTER_1']
ROUTER_1_RLOC = pv.vars['ROUTER_1_RLOC']
ROUTER_1_RLOC16 = pv.vars['ROUTER_1_RLOC16']
# Step 1: Ensure topology is formed correctly
for i in range(1, 24):
pv.verify_attached('ROUTER_%d' % i)
# Step 3: Allow enough time for the DUT to get Network Data Updates
# and resign its Router ID.
# The DUT MUST first reconnect to the network as a Child by
# sending properly formatted Parent Request and Child ID Request
# messages.
# Once the DUT attaches as a Child, it MUST send an Address
# Release Message to the Leader:
# CoAP Request URI
# coap://[<leader address>]:MM/a/ar
# CoAP Payload
# MAC Extended Address TLV
# RLOC16 TLV
pkts.filter_wpan_src64(ROUTER_1).\
filter_LLARMA().\
filter_mle_cmd(MLE_PARENT_REQUEST).\
filter(lambda p: {
CHALLENGE_TLV,
MODE_TLV,
SCAN_MASK_TLV,
VERSION_TLV
} <= set(p.mle.tlv.type) and\
p.ipv6.hlim == 255 and\
p.mle.tlv.scan_mask.r == 1 and\
p.mle.tlv.scan_mask.e == 0
).\
must_next()
_pkt = pkts.filter_wpan_src64(ROUTER_1).\
filter_mle_cmd(MLE_CHILD_ID_REQUEST).\
filter(lambda p: {
LINK_LAYER_FRAME_COUNTER_TLV,
MODE_TLV,
RESPONSE_TLV,
TIMEOUT_TLV,
TLV_REQUEST_TLV,
ADDRESS16_TLV,
NETWORK_DATA_TLV,
VERSION_TLV
} <= set(p.mle.tlv.type) and\
p.mle.tlv.addr16 is nullField and\
p.thread_nwd.tlv.type is nullField
).\
must_next()
_pkt.must_not_verify(lambda p: (ADDRESS_REGISTRATION_TLV) in p.mle.tlv.type)
pkts.filter_wpan_src64(ROUTER_1).\
filter_ipv6_dst(LEADER_RLOC).\
filter_coap_request(ADDR_REL_URI).\
filter(lambda p: {
NL_MAC_EXTENDED_ADDRESS_TLV,
NL_RLOC16_TLV
} == set(p.coap.tlv.type) and\
p.thread_address.tlv.rloc16 == ROUTER_1_RLOC16
).\
must_next()
# Step 4: Leader receives Address Release messages and sends a2.04
# Changed CoAP response.
pkts.filter_wpan_src64(LEADER).\
filter_ipv6_dst(ROUTER_1_RLOC).\
filter_coap_ack(ADDR_REL_URI).\
must_next()
# Step 5: ROUTER_1 responds with ICMPv6 Echo Reply
_pkt = pkts.filter_ipv6_src_dst(LEADER_RLOC, ROUTER_1_RLOC).\
filter_ping_request().\
must_next()
pkts.filter_ipv6_src_dst(ROUTER_1_RLOC, LEADER_RLOC).\
filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\
must_next()
if __name__ == '__main__':
unittest.main()