#!/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 copy import ipaddress import time import unittest import command import config import ipv6 import network_layer import node LEADER = 1 BR = 2 ROUTER1 = 3 DUT_ROUTER2 = 4 MED1 = 5 class Cert_5_3_10_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(0xface) self.nodes[LEADER].set_mode('rsdn') self.nodes[LEADER].add_whitelist(self.nodes[BR].get_addr64()) self.nodes[LEADER].add_whitelist(self.nodes[ROUTER1].get_addr64()) self.nodes[LEADER].add_whitelist(self.nodes[DUT_ROUTER2].get_addr64()) self.nodes[LEADER].enable_whitelist() self.nodes[BR].set_panid(0xface) self.nodes[BR].set_mode('rsdn') self.nodes[BR].add_whitelist(self.nodes[LEADER].get_addr64()) self.nodes[BR].enable_whitelist() self.nodes[BR].set_router_selection_jitter(1) self.nodes[ROUTER1].set_panid(0xface) self.nodes[ROUTER1].set_mode('rsdn') self.nodes[ROUTER1].add_whitelist(self.nodes[LEADER].get_addr64()) self.nodes[ROUTER1].add_whitelist(self.nodes[DUT_ROUTER2].get_addr64()) self.nodes[ROUTER1].enable_whitelist() self.nodes[ROUTER1].set_router_selection_jitter(1) self.nodes[DUT_ROUTER2].set_panid(0xface) 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[ROUTER1].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[MED1].set_panid(0xface) self.nodes[MED1].set_mode('rsn') self.nodes[MED1].add_whitelist(self.nodes[DUT_ROUTER2].get_addr64()) 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 & 2 # Build and verify the topology self.nodes[LEADER].start() self.simulator.go(5) self.assertEqual(self.nodes[LEADER].get_state(), 'leader') self.nodes[BR].start() self.simulator.go(5) self.assertEqual(self.nodes[BR].get_state(), 'router') # Configure two On-Mesh Prefixes on the BR self.nodes[BR].add_prefix('2003::/64', 'paros') self.nodes[BR].add_prefix('2004::/64', 'paros') self.nodes[BR].register_netdata() # Set lowpan context of sniffer self.simulator.set_lowpan_context(1, '2003::/64') self.simulator.set_lowpan_context(2, '2004::/64') self.nodes[DUT_ROUTER2].start() self.simulator.go(5) self.assertEqual(self.nodes[DUT_ROUTER2].get_state(), 'router') self.nodes[ROUTER1].start() self.simulator.go(5) self.assertEqual(self.nodes[ROUTER1].get_state(), 'router') self.nodes[MED1].start() self.simulator.go(5) self.assertEqual(self.nodes[MED1].get_state(), 'child') # 3 MED1: MED1 sends an ICMPv6 Echo Request to Router1 using GUA 2003:: address router1_addr = self.nodes[ROUTER1].get_addr("2003::/64") self.assertTrue(router1_addr is not None) self.assertTrue(self.nodes[MED1].ping(router1_addr)) # Wait for sniffer got Address Notification messages self.simulator.go(1) # Verify DUT_ROUTER2 sent an Address Query Request dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) msg = dut_router2_messages.next_coap_message('0.02', '/a/aq') command.check_address_query(msg, self.nodes[DUT_ROUTER2], config.REALM_LOCAL_ALL_ROUTERS_ADDRESS) # Verify the DUT_ROUTER2 forwarded ICMPv6 Echo Request to ROUTER1 msg = dut_router2_messages.get_icmp_message(ipv6.ICMP_ECHO_REQUEST) assert msg is not None, "Error: The DUT_ROUTER2 didn't forward ICMPv6 Echo Request to ROUTER1" msg.assertSentToNode(self.nodes[ROUTER1]) # 4 BR: BR sends an ICMPv6 Echo Request to MED1 using GUA 2003:: address med1_addr = self.nodes[MED1].get_addr("2003::/64") self.assertTrue(med1_addr is not None) self.assertTrue(self.nodes[BR].ping(med1_addr)) # Wait for sniffer got Address Notification messages self.simulator.go(1) # Verify DUT_ROUTER2 sent an Address Notification message dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) msg = dut_router2_messages.next_coap_message('0.02', '/a/an') command.check_address_notification(msg, self.nodes[DUT_ROUTER2], self.nodes[BR]) # 5 MED1: MED1 sends an ICMPv6 Echo Request to ROUTER1 using GUA 2003:: address addr = self.nodes[ROUTER1].get_addr("2003::/64") self.assertTrue(addr is not None) self.assertTrue(self.nodes[MED1].ping(addr)) # Wait for sniffer got ICMPv6 Echo Reply self.simulator.go(1) # Verify DUT_ROUTER2 didn't generate an Address Query Request dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) dut_router2_messages_temp = copy.deepcopy(dut_router2_messages) msg = dut_router2_messages.next_coap_message('0.02', '/a/aq', False) assert msg is None, "Error: The DUT_ROUTER2 sent an unexpected Address Query Request" # Verify DUT_ROUTER2 forwarded ICMPv6 Echo Reply to MED1 msg = dut_router2_messages_temp.get_icmp_message(ipv6.ICMP_ECHO_RESPONSE) assert msg is not None, "Error: The DUT_ROUTER2 didn't forward ICMPv6 Echo Reply to MED1" msg.assertSentToNode(self.nodes[MED1]) # 6 DUT_ROUTER2: Power off ROUTER1 and wait 580 seconds to allow the LEADER to expire its Router ID router1_id = self.nodes[ROUTER1].get_router_id() self.nodes[ROUTER1].stop() self.simulator.go(580) # Send an ICMPv6 Echo Request from MED1 to ROUTER1 GUA 2003:: address self.assertFalse(self.nodes[MED1].ping(router1_addr)) # Verify the DUT_ROUTER2 has removed all entries based on ROUTER1's Router ID command.check_router_id_cached(self.nodes[DUT_ROUTER2], router1_id, False) # Verify DUT_ROUTER2 sent an Address Query Request dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) msg = dut_router2_messages.next_coap_message('0.02', '/a/aq') msg.assertSentToDestinationAddress(config.REALM_LOCAL_ALL_ROUTERS_ADDRESS) # 7 MED1: Power off MED1 and wait to allow DUT_ROUTER2 to timeout the child self.nodes[MED1].stop() self.simulator.go(config.MLE_END_DEVICE_TIMEOUT) # BR sends two ICMPv6 Echo Requests to MED1 GUA 2003:: address self.assertFalse(self.nodes[BR].ping(med1_addr)) self.assertFalse(self.nodes[BR].ping(med1_addr)) # Verify DUT_ROUTER2 didn't generate an Address Notification message dut_router2_messages = self.simulator.get_messages_sent_by(DUT_ROUTER2) msg = dut_router2_messages.next_coap_message('0.02', '/a/an/', False) assert msg is None, "Error: The DUT_ROUTER2 sent an unexpected Address Notification message" if __name__ == '__main__': unittest.main()