#!/usr/bin/env python # # 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 time import unittest import node import config import command LEADER = 1 ROUTER1 = 2 DUT_ROUTER2 = 3 ROUTER3 = 4 MED1 = 5 MED1_TIMEOUT = 3 class Cert_5_3_3_AddressQuery(unittest.TestCase): def setUp(self): self.simulator = config.create_default_simulator() self.nodes = {} for i in range(1,6): self.nodes[i] = node.Node(i, (i == MED1), simulator=self.simulator) self.nodes[LEADER].set_panid() self.nodes[LEADER].set_mode('rsdn') self.nodes[LEADER].add_whitelist(self.nodes[ROUTER1].get_addr64()) self.nodes[LEADER].add_whitelist(self.nodes[DUT_ROUTER2].get_addr64()) self.nodes[LEADER].add_whitelist(self.nodes[ROUTER3].get_addr64()) self.nodes[LEADER].enable_whitelist() self.nodes[ROUTER1].set_panid() self.nodes[ROUTER1].set_mode('rsdn') self.nodes[ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64()) self.nodes[ROUTER1].enable_whitelist() self.nodes[ROUTER1].set_router_selection_jitter(1) self.nodes[DUT_ROUTER2].set_panid() self.nodes[DUT_ROUTER2].set_mode('rsdn') self.nodes[DUT_ROUTER2].add_whitelist(self.nodes[LEADER].get_addr64()) self.nodes[DUT_ROUTER2].add_whitelist(self.nodes[ROUTER3].get_addr64()) self.nodes[DUT_ROUTER2].add_whitelist(self.nodes[MED1].get_addr64()) self.nodes[DUT_ROUTER2].enable_whitelist() self.nodes[DUT_ROUTER2].set_router_selection_jitter(1) self.nodes[ROUTER3].set_panid() self.nodes[ROUTER3].set_mode('rsdn') self.nodes[ROUTER3].add_whitelist(self.nodes[LEADER].get_addr64()) self.nodes[ROUTER3].add_whitelist(self.nodes[DUT_ROUTER2].get_addr64()) self.nodes[ROUTER3].enable_whitelist() self.nodes[ROUTER3].set_router_selection_jitter(1) self.nodes[MED1].set_panid() self.nodes[MED1].set_mode('rsn') self.nodes[MED1].add_whitelist(self.nodes[DUT_ROUTER2].get_addr64()) self.nodes[MED1].set_timeout(MED1_TIMEOUT) self.nodes[MED1].enable_whitelist() def tearDown(self): for node in list(self.nodes.values()): node.stop() node.destroy() self.simulator.stop() def test(self): # 1 self.nodes[LEADER].start() self.simulator.go(5) self.assertEqual(self.nodes[LEADER].get_state(), 'leader') self.nodes[ROUTER1].start() self.nodes[DUT_ROUTER2].start() self.nodes[ROUTER3].start() self.nodes[MED1].start() self.simulator.go(5) self.assertEqual(self.nodes[ROUTER1].get_state(), 'router') self.assertEqual(self.nodes[DUT_ROUTER2].get_state(), 'router') self.assertEqual(self.nodes[ROUTER3].get_state(), 'router') self.assertEqual(self.nodes[MED1].get_state(), 'child') # 2 # Flush the message queue to avoid possible impact on follow-up verification. dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) router3_mleid = self.nodes[ROUTER3].get_ip6_address(config.ADDRESS_TYPE.ML_EID) self.assertTrue(self.nodes[MED1].ping(router3_mleid)) # Verify DUT_ROUTER2 sent an Address Query Request to the Realm local address. dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) msg = dut_messages.next_coap_message('0.02', '/a/aq') command.check_address_query(msg, self.nodes[DUT_ROUTER2], config.REALM_LOCAL_ALL_ROUTERS_ADDRESS) # 3 # Wait the finish of address resolution traffic triggerred by previous ping. self.simulator.go(5) # Flush the message queue to avoid possible impact on follow-up verification. dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) med1_mleid = self.nodes[MED1].get_ip6_address(config.ADDRESS_TYPE.ML_EID) self.assertTrue(self.nodes[ROUTER1].ping(med1_mleid)) # Verify DUT_ROUTER2 responded with an Address Notification. dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) msg = dut_messages.next_coap_message('0.02', '/a/an') command.check_address_notification(msg, self.nodes[DUT_ROUTER2], self.nodes[ROUTER1]) # 4 # Wait the finish of address resolution traffic triggerred by previous ping. self.simulator.go(5) # Flush the message queue to avoid possible impact on follow-up verification. dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) self.assertTrue(self.nodes[MED1].ping(router3_mleid)) # Verify DUT_ROUTER2 didn't send an Address Query Request. dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) msg = dut_messages.next_coap_message('0.02', '/a/aq', False) assert msg is None, "The Address Query Request is not expected." # 5 # Power off ROUTER3 and wait for leader to expire its Router ID. # In this topology, ROUTER3 has two neighbors (Leader and DUT_ROUTER2), # so the wait time is (MAX_NEIGHBOR_AGE (100s) + worst propagation time (32s * 15) for bad routing +\ # INFINITE_COST_TIMEOUT (90s) + transmission time + extra redundancy), totally ~700s. self.nodes[ROUTER3].stop() self.simulator.go(700) # Flush the message queue to avoid possible impact on follow-up verification. dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) self.assertFalse(self.nodes[MED1].ping(router3_mleid)) # Verify DUT_ROUTER2 sent an Address Query Request to the Realm local address. dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) msg = dut_messages.next_coap_message('0.02', '/a/aq') command.check_address_query(msg, self.nodes[DUT_ROUTER2], config.REALM_LOCAL_ALL_ROUTERS_ADDRESS) # 6 self.nodes[MED1].stop() self.simulator.go(MED1_TIMEOUT) # Flush the message queue to avoid possible impact on follow-up verification. dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) self.assertFalse(self.nodes[ROUTER1].ping(med1_mleid)) self.assertFalse(self.nodes[ROUTER1].ping(med1_mleid)) # Verify DUT_ROUTER2 didn't respond with an Address Notification. dut_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) msg = dut_messages.next_coap_message('0.02', '/a/an', False) assert msg is None, "The Address Notification is not expected." if __name__ == '__main__': unittest.main()