| #!/usr/bin/env python3 |
| # |
| # Copyright (c) 2016, 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 unittest |
| |
| import command |
| import config |
| import thread_cert |
| from pktverify.packet_verifier import PacketVerifier |
| |
| LEADER = 1 |
| DUT_ROUTER1 = 2 |
| ROUTER2 = 3 |
| ROUTER3 = 4 |
| |
| # Test Purpose and Description: |
| # ----------------------------- |
| # The purpose of this test case is to ensure that the DUT routes traffic properly |
| # when link qualities between the nodes are adjusted. |
| # |
| # Test Topology: |
| # ------------- |
| # Leader |
| # / \ |
| # Router_2 - Router_1(DUT) |
| # | |
| # Router_3 |
| # |
| # DUT Types: |
| # ---------- |
| # Router |
| |
| |
| class Cert_5_3_5_RoutingLinkQuality(thread_cert.TestCase): |
| USE_MESSAGE_FACTORY = False |
| |
| TOPOLOGY = { |
| LEADER: { |
| 'name': 'LEADER', |
| 'mode': 'rdn', |
| 'allowlist': [DUT_ROUTER1, ROUTER2] |
| }, |
| DUT_ROUTER1: { |
| 'name': 'ROUTER_1', |
| 'mode': 'rdn', |
| 'allowlist': [LEADER, ROUTER2, ROUTER3] |
| }, |
| ROUTER2: { |
| 'name': 'ROUTER_2', |
| 'mode': 'rdn', |
| 'allowlist': [LEADER, DUT_ROUTER1] |
| }, |
| ROUTER3: { |
| 'name': 'ROUTER_3', |
| 'mode': 'rdn', |
| 'allowlist': [DUT_ROUTER1] |
| }, |
| } |
| |
| def test(self): |
| # 1 |
| self.nodes[LEADER].start() |
| self.simulator.go(5) |
| self.assertEqual(self.nodes[LEADER].get_state(), 'leader') |
| |
| for router in range(DUT_ROUTER1, ROUTER3 + 1): |
| self.nodes[router].start() |
| self.simulator.go(10) |
| |
| for router in range(DUT_ROUTER1, ROUTER3 + 1): |
| self.assertEqual(self.nodes[router].get_state(), 'router') |
| |
| self.collect_rlocs() |
| self.collect_rloc16s() |
| |
| # 2 & 3 |
| leader_rloc = self.nodes[LEADER].get_ip6_address(config.ADDRESS_TYPE.RLOC) |
| self.assertTrue(self.nodes[ROUTER3].ping(leader_rloc)) |
| |
| # 4 & 5 |
| self.nodes[LEADER].add_allowlist(self.nodes[DUT_ROUTER1].get_addr64(), config.RSSI['LINK_QULITY_1']) |
| self.nodes[DUT_ROUTER1].add_allowlist(self.nodes[LEADER].get_addr64(), config.RSSI['LINK_QULITY_1']) |
| self.simulator.go(3 * config.MAX_ADVERTISEMENT_INTERVAL) |
| |
| self.assertTrue(self.nodes[ROUTER3].ping(leader_rloc)) |
| |
| # 6 & 7 |
| self.nodes[LEADER].add_allowlist(self.nodes[DUT_ROUTER1].get_addr64(), config.RSSI['LINK_QULITY_2']) |
| self.nodes[DUT_ROUTER1].add_allowlist(self.nodes[LEADER].get_addr64(), config.RSSI['LINK_QULITY_2']) |
| self.simulator.go(3 * config.MAX_ADVERTISEMENT_INTERVAL) |
| |
| self.assertTrue(self.nodes[ROUTER3].ping(leader_rloc)) |
| |
| # 8 & 9 |
| self.nodes[LEADER].add_allowlist(self.nodes[DUT_ROUTER1].get_addr64(), config.RSSI['LINK_QULITY_0']) |
| self.nodes[DUT_ROUTER1].add_allowlist(self.nodes[LEADER].get_addr64(), config.RSSI['LINK_QULITY_0']) |
| self.simulator.go(3 * config.MAX_ADVERTISEMENT_INTERVAL) |
| |
| self.assertTrue(self.nodes[ROUTER3].ping(leader_rloc)) |
| |
| def verify(self, pv): |
| pkts = pv.pkts |
| pv.summary.show() |
| |
| LEADER = pv.vars['LEADER'] |
| LEADER_RLOC = pv.vars['LEADER_RLOC'] |
| LEADER_RLOC16 = pv.vars['LEADER_RLOC16'] |
| ROUTER_1 = pv.vars['ROUTER_1'] |
| ROUTER_1_RLOC = pv.vars['ROUTER_1_RLOC'] |
| ROUTER_1_RLOC16 = pv.vars['ROUTER_1_RLOC16'] |
| ROUTER_2 = pv.vars['ROUTER_2'] |
| ROUTER_2_RLOC16 = pv.vars['ROUTER_2_RLOC16'] |
| ROUTER_2_RLOC = pv.vars['ROUTER_2_RLOC'] |
| ROUTER_3 = pv.vars['ROUTER_3'] |
| ROUTER_3_RLOC = pv.vars['ROUTER_3_RLOC'] |
| MM = pv.vars['MM_PORT'] |
| |
| # Step 1: Ensure topology is formed correctly |
| for i in range(1, 4): |
| with pkts.save_index(): |
| pv.verify_attached('ROUTER_%d' % i) |
| |
| # Step 2: Modify the link quality between the DUT and the Leader to be 3 |
| # Step 3: Router_3 sends an ICMPv6 Echo Request to the Leader |
| # The ICMPv6 Echo Request MUST take the shortest path: |
| # Router_3 -> DUT -> Leader |
| # The hopsLft field of the 6LoWPAN Mesh Header MUST be greater than |
| # the route cost to the destination |
| |
| _pkt = pkts.filter_ping_request().\ |
| filter_wpan_src64(ROUTER_3).\ |
| filter_ipv6_dst(LEADER_RLOC).\ |
| must_next() |
| _pkt.must_verify(lambda p: p.lowpan.mesh.hops > 2) |
| pkts.filter_ping_request(identifier=_pkt.icmpv6.echo.identifier).\ |
| filter_wpan_src64(ROUTER_1).\ |
| filter_wpan_dst16(LEADER_RLOC16).\ |
| must_next() |
| pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\ |
| filter_wpan_src64(LEADER).\ |
| filter_ipv6_dst(ROUTER_3_RLOC).\ |
| must_next() |
| |
| # Step 4: Modify the link quality between the DUT and the Leader to be 1 |
| # Step 5: Router_3 sends an ICMPv6 Echo Request to the Leader |
| # The ICMPv6 Echo Request MUST take the shortest path: |
| # Router_3 -> DUT -> Router_2 -> Leader |
| # The hopsLft field of the 6LoWPAN Mesh Header MUST be greater than |
| # the route cost to the destination |
| |
| _pkt = pkts.filter_ping_request().\ |
| filter_wpan_src64(ROUTER_3).\ |
| filter_ipv6_dst(LEADER_RLOC).\ |
| must_next() |
| _pkt.must_verify(lambda p: p.lowpan.mesh.hops > 3) |
| pkts.filter_ping_request(identifier=_pkt.icmpv6.echo.identifier).\ |
| filter_wpan_src64(ROUTER_1).\ |
| filter_wpan_dst16(ROUTER_2_RLOC16).\ |
| must_next() |
| pkts.filter_ping_request(identifier=_pkt.icmpv6.echo.identifier).\ |
| filter_wpan_src64(ROUTER_2).\ |
| filter_wpan_dst16(LEADER_RLOC16).\ |
| must_next() |
| pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\ |
| filter_wpan_src64(LEADER).\ |
| filter_ipv6_dst(ROUTER_3_RLOC).\ |
| must_next() |
| |
| # Step 6: Modify the link quality between the DUT and the Leader to be 2 |
| # Step 7: Router_3 sends an ICMPv6 Echo Request to the Leader |
| # The ICMPv6 Echo Request MUST take the shortest path: |
| # Router_3 -> DUT -> Leader |
| # The hopsLft field of the 6LoWPAN Mesh Header MUST be greater than |
| # the route cost to the destination |
| |
| _pkt = pkts.filter_ping_request().\ |
| filter_wpan_src64(ROUTER_3).\ |
| filter_ipv6_dst(LEADER_RLOC).\ |
| must_next() |
| _pkt.must_verify(lambda p: p.lowpan.mesh.hops > 2) |
| pkts.filter_ping_request(identifier=_pkt.icmpv6.echo.identifier).\ |
| filter_wpan_src64(ROUTER_1).\ |
| filter_wpan_dst16(LEADER_RLOC16).\ |
| must_next() |
| pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\ |
| filter_wpan_src64(LEADER).\ |
| filter_ipv6_dst(ROUTER_3_RLOC).\ |
| must_next() |
| |
| # Step 8: Modify the link quality between the DUT and the Leader to be 0 |
| # Step 9: Router_3 sends an ICMPv6 Echo Request to the Leader |
| # The ICMPv6 Echo Request MUST take the shortest path: |
| # Router_3 -> DUT -> Router_2 -> Leader |
| # The hopsLft field of the 6LoWPAN Mesh Header MUST be greater than |
| # the route cost to the destination |
| |
| _pkt = pkts.filter_ping_request().\ |
| filter_wpan_src64(ROUTER_3).\ |
| filter_ipv6_dst(LEADER_RLOC).\ |
| must_next() |
| _pkt.must_verify(lambda p: p.lowpan.mesh.hops > 3) |
| pkts.filter_ping_request(identifier=_pkt.icmpv6.echo.identifier).\ |
| filter_wpan_src64(ROUTER_1).\ |
| filter_wpan_dst16(ROUTER_2_RLOC16).\ |
| must_next() |
| pkts.filter_ping_request(identifier=_pkt.icmpv6.echo.identifier).\ |
| filter_wpan_src64(ROUTER_2).\ |
| filter_wpan_dst16(LEADER_RLOC16).\ |
| must_next() |
| pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\ |
| filter_wpan_src64(LEADER).\ |
| filter_ipv6_dst(ROUTER_3_RLOC).\ |
| must_next() |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |
