| #!/usr/bin/env python3 |
| # |
| # Copyright (c) 2020, 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. |
| # |
| # This test verifies that no ICMPv6 message is sent for MLE. |
| # |
| import unittest |
| |
| import thread_cert |
| from pktverify.consts import ICMPV6_TYPE_DESTINATION_UNREACHABLE |
| from pktverify.packet_verifier import PacketVerifier |
| |
| PBBR = 1 |
| ROUTER = 2 |
| |
| |
| class TestMleMustNotSendIcmpv6DestinationUnreachable(thread_cert.TestCase): |
| USE_MESSAGE_FACTORY = False |
| |
| # Topology: |
| # |
| # ------(eth)---------- |
| # | |
| # PBBR---ROUTER |
| # |
| TOPOLOGY = { |
| PBBR: { |
| 'name': 'PBBR', |
| 'allowlist': [ROUTER], |
| 'is_otbr': True, |
| 'version': '1.2', |
| }, |
| ROUTER: { |
| 'name': 'ROUTER', |
| 'allowlist': [PBBR], |
| 'version': '1.2', |
| }, |
| } |
| |
| def test(self): |
| self.nodes[PBBR].start() |
| self.simulator.go(5) |
| self.assertEqual('leader', self.nodes[PBBR].get_state()) |
| self.nodes[PBBR].enable_backbone_router() |
| self.simulator.go(3) |
| self.assertTrue(self.nodes[PBBR].is_primary_backbone_router) |
| |
| self.nodes[ROUTER].start() |
| self.simulator.go(5) |
| self.assertEqual('router', self.nodes[ROUTER].get_state()) |
| |
| self.simulator.go(5) |
| |
| self.collect_ipaddrs() |
| |
| def verify(self, pv: PacketVerifier): |
| pkts = pv.pkts |
| pv.add_common_vars() |
| pv.summary.show() |
| |
| with pkts.save_index(): |
| pv.verify_attached('ROUTER') |
| |
| PBBR = pv.vars['PBBR'] |
| ROUTER = pv.vars['ROUTER'] |
| |
| # PBBR MUST NOT send ICMPv6 Destination Unreachable |
| pkts.filter_wpan_src64(PBBR).filter_wpan_dst64(ROUTER).filter( |
| f'icmpv6.type == {ICMPV6_TYPE_DESTINATION_UNREACHABLE}').must_not_next() |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |