| #!/usr/bin/env python3 |
| # |
| # Copyright (c) 2021, 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 logging |
| import unittest |
| from ipaddress import IPv6Network |
| |
| import config |
| import thread_cert |
| |
| # Test description: |
| # This test verifies Vicarious Router Solicitation. |
| # |
| # Topology: |
| # -------------(eth)---------------------------- |
| # | | | |
| # BR1 BR2 HOST |
| # | | |
| # ROUTER1 ROUTER2 |
| # |
| # Thread Net1 Thread Net2 |
| # |
| |
| BR1 = 1 |
| ROUTER1 = 2 |
| BR2 = 3 |
| ROUTER2 = 4 |
| HOST = 5 |
| |
| CHANNEL1 = 18 |
| CHANNEL2 = 19 |
| |
| |
| class MultiThreadNetworks(thread_cert.TestCase): |
| USE_MESSAGE_FACTORY = False |
| |
| TOPOLOGY = { |
| BR1: { |
| 'name': 'BR_1', |
| 'allowlist': [ROUTER1], |
| 'is_otbr': True, |
| 'version': '1.2', |
| 'channel': CHANNEL1, |
| 'router_selection_jitter': 1, |
| }, |
| ROUTER1: { |
| 'name': 'Router_1', |
| 'allowlist': [BR1], |
| 'version': '1.2', |
| 'channel': CHANNEL1, |
| 'router_selection_jitter': 1, |
| }, |
| BR2: { |
| 'name': 'BR_2', |
| 'allowlist': [ROUTER2], |
| 'is_otbr': True, |
| 'version': '1.2', |
| 'channel': CHANNEL2, |
| 'router_selection_jitter': 1, |
| }, |
| ROUTER2: { |
| 'name': 'Router_2', |
| 'allowlist': [BR2], |
| 'version': '1.2', |
| 'channel': CHANNEL2, |
| 'router_selection_jitter': 1, |
| }, |
| HOST: { |
| 'name': 'Host', |
| 'is_host': True |
| }, |
| } |
| |
| def test(self): |
| ON_LINK_PREFIX = 'fd00::/64' |
| br1 = self.nodes[BR1] |
| router1 = self.nodes[ROUTER1] |
| br2 = self.nodes[BR2] |
| router2 = self.nodes[ROUTER2] |
| host = self.nodes[HOST] |
| |
| host.start(start_radvd=True, prefix=ON_LINK_PREFIX, slaac=True) |
| self.simulator.go(5) |
| |
| br1.start() |
| self.simulator.go(5) |
| self.assertEqual('leader', br1.get_state()) |
| |
| router1.start() |
| self.simulator.go(5) |
| self.assertEqual('router', router1.get_state()) |
| |
| self.simulator.go(10) |
| self.collect_ipaddrs() |
| |
| logging.info("BR1 addrs: %r", br1.get_addrs()) |
| logging.info("ROUTER1 addrs: %r", router1.get_addrs()) |
| logging.info("HOST addrs: %r", host.get_addrs()) |
| |
| self.assertEqual(len(br1.get_routes()), 1) |
| br1_on_link_prefix = br1.get_routes()[0].split(' ')[0] |
| self.assertEqual(IPv6Network(br1_on_link_prefix), IPv6Network(ON_LINK_PREFIX)) |
| |
| host_on_link_addr = host.get_matched_ula_addresses(br1_on_link_prefix)[0] |
| self.assertTrue(router1.ping(host_on_link_addr)) |
| self.assertTrue( |
| host.ping(router1.get_ip6_address(config.ADDRESS_TYPE.OMR)[0], backbone=True, interface=host_on_link_addr)) |
| |
| # Force kill the radvd host so that BR2 will start advertising its own on-link prefix. |
| host.kill_radvd_service() |
| |
| br2.start() |
| self.simulator.go(5) |
| self.assertEqual('leader', br2.get_state()) |
| |
| router2.start() |
| self.simulator.go(5) |
| self.assertEqual('router', router2.get_state()) |
| |
| self.simulator.go(25) |
| self.collect_ipaddrs() |
| |
| logging.info("BR1 addrs: %r", br1.get_addrs()) |
| logging.info("ROUTER1 addrs: %r", router1.get_addrs()) |
| logging.info("BR2 addrs: %r", br2.get_addrs()) |
| logging.info("ROUTER2 addrs: %r", router2.get_addrs()) |
| logging.info("HOST addrs: %r", host.get_addrs()) |
| |
| self.assertTrue(len(br1.get_prefixes()) == 1) |
| self.assertTrue(len(router1.get_prefixes()) == 1) |
| self.assertTrue(len(br2.get_prefixes()) == 1) |
| self.assertTrue(len(router2.get_prefixes()) == 1) |
| |
| br1_omr_prefix = br1.get_omr_prefix() |
| br2_omr_prefix = br2.get_omr_prefix() |
| self.assertNotEqual(br1_omr_prefix, br2_omr_prefix) |
| |
| # Verify that the Border Routers starts advertsing new on-link prefix |
| # but don't remove the external routes for the radvd on-link prefix |
| # immediately, because the SLAAC addresses are still valid. |
| self.assertEqual(len(br1.get_routes()), 3) |
| self.assertEqual(len(router1.get_routes()), 3) |
| self.assertEqual(len(br2.get_routes()), 2) |
| self.assertEqual(len(router2.get_routes()), 2) |
| |
| br1_external_routes = [route.split(' ')[0] for route in br1.get_routes()] |
| br2_external_routes = [route.split(' ')[0] for route in br2.get_routes()] |
| |
| on_link_prefixes = list(set(br1_external_routes).intersection(br2_external_routes)) |
| self.assertEqual(len(on_link_prefixes), 1) |
| self.assertEqual(IPv6Network(on_link_prefixes[0]), IPv6Network(br2.get_on_link_prefix())) |
| |
| router1_omr_addr = router1.get_ip6_address(config.ADDRESS_TYPE.OMR)[0] |
| router2_omr_addr = router2.get_ip6_address(config.ADDRESS_TYPE.OMR)[0] |
| |
| # Make sure that addresses of both the deprecated radvd `ON_LINK_PREFIX` |
| # and preferred Border Router on-link prefix can be reached by Thread |
| # devices in network of Border Router 1. |
| for host_on_link_addr in [ |
| host.get_matched_ula_addresses(on_link_prefixes[0])[0], |
| host.get_matched_ula_addresses(ON_LINK_PREFIX)[0] |
| ]: |
| self.assertTrue(router1.ping(host_on_link_addr)) |
| self.assertTrue(host.ping(router1_omr_addr, backbone=True, interface=host_on_link_addr)) |
| |
| host_on_link_addr = host.get_matched_ula_addresses(ON_LINK_PREFIX)[0] |
| |
| # Make sure that addresses of the deprecated radvd `ON_LINK_PREFIX` |
| # can't be reached by Thread devices in network of Border Router 2. |
| self.assertFalse(router2.ping(host_on_link_addr)) |
| self.assertFalse(host.ping(router2_omr_addr, backbone=True, interface=host_on_link_addr)) |
| |
| # Wait 30 seconds for the radvd `ON_LINK_PREFIX` to be invalidated |
| # and make sure that Thread devices in both networks can't reach |
| # the on-link address. |
| self.simulator.go(30) # Valid Lifetime of radvd PIO is set to 60 seconds. |
| self.assertEqual(len(host.get_matched_ula_addresses(ON_LINK_PREFIX)), 0) |
| self.assertFalse(router1.ping(host_on_link_addr)) |
| self.assertFalse(host.ping(router1_omr_addr, backbone=True, interface=host_on_link_addr)) |
| self.assertFalse(router2.ping(host_on_link_addr)) |
| self.assertFalse(host.ping(router2_omr_addr, backbone=True, interface=host_on_link_addr)) |
| |
| # Verify connectivity between the two networks. |
| self.assertTrue(router1.ping(router2.get_ip6_address(config.ADDRESS_TYPE.OMR)[0])) |
| self.assertTrue(router2.ping(router1.get_ip6_address(config.ADDRESS_TYPE.OMR)[0])) |
| |
| |
| if __name__ == '__main__': |
| unittest.main() |
