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1#!/usr/bin/env python3
2#
3#  Copyright (c) 2016, The OpenThread Authors.
4#  All rights reserved.
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6#  Redistribution and use in source and binary forms, with or without
7#  modification, are permitted provided that the following conditions are met:
8#  1. Redistributions of source code must retain the above copyright
9#     notice, this list of conditions and the following disclaimer.
10#  2. Redistributions in binary form must reproduce the above copyright
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12#     documentation and/or other materials provided with the distribution.
13#  3. Neither the name of the copyright holder nor the
14#     names of its contributors may be used to endorse or promote products
15#     derived from this software without specific prior written permission.
16#
17#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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23#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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26#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
27#  POSSIBILITY OF SUCH DAMAGE.
28#
29
30import unittest
31
32import config
33import thread_cert
34from pktverify.consts import MLE_CHILD_ID_REQUEST, MLE_ADVERTISEMENT, MLE_CHILD_UPDATE_REQUEST, SOURCE_ADDRESS_TLV, MODE_TLV, LEADER_DATA_TLV
35from pktverify.packet_verifier import PacketVerifier
36
37LEADER = 1
38ROUTER1 = 2
39ROUTER2 = 3
40ED = 4
41
42
43class Cert_6_2_2_NewPartition(thread_cert.TestCase):
44    TOPOLOGY = {
45        LEADER: {
46            'name': 'LEADER',
47            'mode': 'rdn',
48            'allowlist': [ROUTER1, ROUTER2]
49        },
50        ROUTER1: {
51            'name': 'ROUTER_1',
52            'mode': 'rdn',
53            'allowlist': [LEADER, ROUTER2, ED]
54        },
55        ROUTER2: {
56            'name': 'ROUTER_2',
57            'mode': 'rdn',
58            'network_id_timeout': 110,
59            'allowlist': [LEADER, ROUTER1]
60        },
61        ED: {
62            'name': 'ED',
63            'is_mtd': True,
64            'mode': 'rn',
65            'allowlist': [ROUTER1]
66        },
67    }
68
69    def test(self):
70        self.nodes[LEADER].start()
71        self.simulator.go(config.LEADER_STARTUP_DELAY)
72        self.assertEqual(self.nodes[LEADER].get_state(), 'leader')
73
74        self.nodes[ROUTER1].start()
75        self.simulator.go(config.ROUTER_STARTUP_DELAY)
76        self.assertEqual(self.nodes[ROUTER1].get_state(), 'router')
77
78        self.nodes[ROUTER2].start()
79        self.simulator.go(config.ROUTER_STARTUP_DELAY)
80        self.assertEqual(self.nodes[ROUTER2].get_state(), 'router')
81
82        self.nodes[ED].start()
83        self.simulator.go(5)
84        self.assertEqual(self.nodes[ED].get_state(), 'child')
85
86        self.nodes[LEADER].stop()
87        self.simulator.go(140)
88        self.assertEqual(self.nodes[ROUTER2].get_state(), 'leader')
89        self.assertEqual(self.nodes[ROUTER1].get_state(), 'router')
90        self.assertEqual(self.nodes[ED].get_state(), 'child')
91
92        self.collect_ipaddrs()
93        addrs = self.nodes[ED].get_addrs()
94        for addr in addrs:
95            self.assertTrue(self.nodes[ROUTER1].ping(addr))
96
97    def verify(self, pv):
98        pkts = pv.pkts
99        pv.summary.show()
100
101        ROUTER_1 = pv.vars['ROUTER_1']
102        ED = pv.vars['ED']
103        _router1_pkts = pkts.filter_wpan_src64(ROUTER_1)
104        _ed_pkts = pkts.filter_wpan_src64(ED)
105
106        # Step 1: Ensure that the DUT successfully attached to Router_1
107        _ed_pkts.filter_mle_cmd(MLE_CHILD_ID_REQUEST).filter_wpan_dst64(ROUTER_1).must_next()
108
109        # Step 2-6 : remove Leader and make ROUTER_2 as new Leader
110        # Step 7: The DUT MUST send a MLE Child Update Request to Router_1
111        _ed_pkts.filter_mle_cmd(MLE_ADVERTISEMENT).must_not_next()
112        _ed_pkts.filter_mle_cmd(MLE_CHILD_ID_REQUEST).must_not_next()
113        _ed_pkts.filter_wpan_dst64(ROUTER_1).filter_mle_cmd(MLE_CHILD_UPDATE_REQUEST).must_next().must_verify(
114            lambda p: {MODE_TLV, SOURCE_ADDRESS_TLV, LEADER_DATA_TLV} <= set(p.mle.tlv.type))
115
116        # Step 8: The DUT MUST respond with ICMPv6 Echo Reply
117        _ed_pkts.filter('ipv6.dst == {ROUTER_1_MLEID} and ipv6.src == {ED_MLEID}',
118                        **pv.vars).filter_ping_reply().must_next()
119
120
121if __name__ == '__main__':
122    unittest.main()
123