#!/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. # import unittest import copy import thread_cert import config from pktverify.consts import MLE_PARENT_REQUEST, MLE_PARENT_RESPONSE, MLE_CHILD_ID_REQUEST, MLE_CHILD_ID_RESPONSE, ADDR_SOL_URI, SOURCE_ADDRESS_TLV, MODE_TLV, TIMEOUT_TLV, CHALLENGE_TLV, RESPONSE_TLV, LINK_LAYER_FRAME_COUNTER_TLV, MLE_FRAME_COUNTER_TLV, ROUTE64_TLV, ADDRESS16_TLV, LEADER_DATA_TLV, NETWORK_DATA_TLV, TLV_REQUEST_TLV, SCAN_MASK_TLV, CONNECTIVITY_TLV, LINK_MARGIN_TLV, VERSION_TLV, ADDRESS_REGISTRATION_TLV, NL_MAC_EXTENDED_ADDRESS_TLV, NL_RLOC16_TLV, NL_STATUS_TLV, NL_ROUTER_MASK_TLV, COAP_CODE_ACK from pktverify.packet_verifier import PacketVerifier LEADER = 1 ROUTER = 2 REED_1 = 3 REED_2 = 4 MTD = 5 # Test Purpose and Description: # ----------------------------- # The purpose of this test case is to validate that the DUT will pick REED_1 # as its parent because of its better connectivity. # # Test Topology: # ------------- # Router - Leader # | / | # REED_1 REED_2 # \ / # DUT # # DUT Types: # ---------- # ED # SED class Cert_6_1_4_REEDAttachConnectivity_Base(thread_cert.TestCase): USE_MESSAGE_FACTORY = False TOPOLOGY = { LEADER: { 'name': 'LEADER', 'mode': 'rdn', 'allowlist': [ROUTER, REED_1, REED_2] }, ROUTER: { 'name': 'ROUTER', 'mode': 'rdn', 'allowlist': [LEADER, REED_1] }, REED_1: { 'name': 'REED_1', 'mode': 'rdn', 'router_upgrade_threshold': 0, 'allowlist': [LEADER, ROUTER, MTD] }, REED_2: { 'name': 'REED_2', 'mode': 'rdn', 'router_upgrade_threshold': 0, 'allowlist': [LEADER, MTD] }, MTD: { 'name': 'DUT', 'is_mtd': True, 'timeout': config.DEFAULT_CHILD_TIMEOUT, 'allowlist': [REED_1, REED_2] }, } def test(self): self.nodes[LEADER].start() self.simulator.go(config.LEADER_STARTUP_DELAY) self.assertEqual(self.nodes[LEADER].get_state(), 'leader') self.nodes[ROUTER].start() self.simulator.go(config.ROUTER_STARTUP_DELAY) self.assertEqual(self.nodes[ROUTER].get_state(), 'router') for i in (3, 4): self.nodes[i].start() self.simulator.go(5) self.assertEqual(self.nodes[i].get_state(), 'child') self.collect_rloc16s() self.collect_rlocs() self.nodes[MTD].start() self.simulator.go(5) self.assertEqual(self.nodes[MTD].get_state(), 'child') self.assertEqual(self.nodes[REED_1].get_state(), 'router') self.simulator.go(config.DEFAULT_CHILD_TIMEOUT) self.collect_ipaddrs() dut_addr = self.nodes[MTD].get_ip6_address(config.ADDRESS_TYPE.LINK_LOCAL) self.assertTrue(self.nodes[REED_1].ping(dut_addr)) def verify(self, pv): pkts = pv.pkts pv.summary.show() LEADER = pv.vars['LEADER'] LEADER_RLOC = pv.vars['LEADER_RLOC'] ROUTER = pv.vars['ROUTER'] REED_1 = pv.vars['REED_1'] REED_1_RLOC = pv.vars['REED_1_RLOC'] REED_1_LLA = pv.vars['REED_1_LLA'] REED_1_RLOC16 = pv.vars['REED_1_RLOC16'] DUT = pv.vars['DUT'] DUT_RLOC = pv.vars['DUT_RLOC'] DUT_LLA = pv.vars['DUT_LLA'] # Step 1: Setup the topology without the DUT. Ensure all routers and # leader are sending MLE advertisements pkts.filter_wpan_src64(LEADER).\ filter_mle_advertisement('Leader').\ must_next() pv.verify_attached('ROUTER', 'LEADER') # Step 2: DUT sends a MLE Parent Request with an IP hop limit of # 255 to the Link-Local All Routers multicast address (FF02::2). # The following TLVs MUST be present in the MLE Parent Request: # - Challenge TLV # - Mode TLV # - Scan Mask TLV # Verify that the first one is sent to routers only # - Version TLV # If the first MLE Parent Request was sent to all Routers and # REED_1S, the test fails. pkts.filter_wpan_src64(DUT).\ filter_LLARMA().\ filter_mle_cmd(MLE_PARENT_REQUEST).\ filter(lambda p: { CHALLENGE_TLV, MODE_TLV, SCAN_MASK_TLV, VERSION_TLV } <= set(p.mle.tlv.type) and\ p.ipv6.hlim == 255 and\ p.mle.tlv.scan_mask.r == 1 and\ p.mle.tlv.scan_mask.e == 0 and\ p.wpan.aux_sec.key_id_mode == 0x2 ).\ must_next() index1 = pkts.index # Step 4: DUT sends a MLE Parent Request with an IP hop limit of # 255 to the Link-Local All Routers multicast address (FF02::2). # The following TLVs MUST be present in the MLE Parent Request: # - Challenge TLV # - Mode TLV # - Scan Mask TLV # Verify that it is sent to Routers AND REED_1s # - Version TLV # If request was not sent to all routers and REED_1S, then the test # has failed. pkts.filter_wpan_src64(DUT).\ filter_LLARMA().\ filter_mle_cmd(MLE_PARENT_REQUEST).\ filter(lambda p: { CHALLENGE_TLV, MODE_TLV, SCAN_MASK_TLV, VERSION_TLV } <= set(p.mle.tlv.type) and\ p.ipv6.hlim == 255 and\ p.mle.tlv.scan_mask.r == 1 and\ p.mle.tlv.scan_mask.e == 1 and\ p.wpan.aux_sec.key_id_mode == 0x2 ).\ must_next() index2 = pkts.index # Step 3: REED_1 and REED_2 sends no response to Parent Request after # DUT sent the first Parent Request for i in (1, 2): pkts.range(index1, index2).\ filter_wpan_src64(pv.vars['REED_%d' %i]).\ filter_wpan_dst64(DUT).\ filter_mle_cmd(MLE_PARENT_RESPONSE).\ must_not_next() # Step 5: REED_1 Respond with MLE Parent Response for i in (1, 2): with pkts.save_index(): pkts.filter_wpan_src64(pv.vars['REED_%d' %i]).\ filter_wpan_dst64(DUT).\ filter_mle_cmd(MLE_PARENT_RESPONSE).\ filter(lambda p: { CHALLENGE_TLV, CONNECTIVITY_TLV, LEADER_DATA_TLV, LINK_LAYER_FRAME_COUNTER_TLV, LINK_MARGIN_TLV, RESPONSE_TLV, SOURCE_ADDRESS_TLV, VERSION_TLV } <= set(p.mle.tlv.type)).\ must_next() # Step 6: DUT sends a MLE Child ID Request to REED_1 # The following TLVs MUST be present in the MLE Child ID Request: # - Address Registration TLV # - Link-layer Frame Counter TLV # - Mode TLV # - Response TLV # - Timeout TLV # - TLV Request TLV # - Version TLV # - MLE Frame Counter TLV (optional) pkts.filter_wpan_src64(DUT).\ filter_wpan_dst64(REED_1).\ filter_mle_cmd(MLE_CHILD_ID_REQUEST).\ filter(lambda p: { ADDRESS_REGISTRATION_TLV, LINK_LAYER_FRAME_COUNTER_TLV, MODE_TLV, RESPONSE_TLV, TIMEOUT_TLV, TLV_REQUEST_TLV, VERSION_TLV } <= set(p.mle.tlv.type) and\ p.wpan.aux_sec.key_id_mode == 0x2 ).\ must_next() # Step 7: REED_1 sends an Address Solicit Request to Leader; # Leader responds with an Address Solicit Response and REED_1 # becomes active router; # REED_1 sends Child ID Response with DUT’s new 16-bit Address. pkts.filter_wpan_src64(REED_1).\ filter_ipv6_dst(LEADER_RLOC).\ filter_coap_request(ADDR_SOL_URI).\ filter(lambda p: { NL_MAC_EXTENDED_ADDRESS_TLV, NL_STATUS_TLV } <= set(p.coap.tlv.type) ).\ must_next() pkts.filter_wpan_src64(LEADER).\ filter_ipv6_dst(REED_1_RLOC).\ filter_coap_ack(ADDR_SOL_URI).\ filter(lambda p: { NL_STATUS_TLV, NL_RLOC16_TLV, NL_ROUTER_MASK_TLV } <= set(p.coap.tlv.type) and\ p.thread_address.tlv.status == 0 ).\ must_next() pkts.filter_wpan_src64(REED_1).\ filter_wpan_dst64(DUT).\ filter_mle_cmd(MLE_CHILD_ID_RESPONSE).\ filter(lambda p: { ADDRESS16_TLV, LEADER_DATA_TLV, NETWORK_DATA_TLV, SOURCE_ADDRESS_TLV } <= set(p.mle.tlv.type) and\ p.mle.tlv.source_addr != REED_1_RLOC16 ).\ must_next() # Step 8: REED_1 verifies connectivity by sending an ICMPv6 Echo Request # to the DUT link local address # DUT responds with ICMPv6 Echo Reply _pkt = pkts.filter_ping_request().\ filter_ipv6_src_dst(REED_1_LLA, DUT_LLA).\ must_next() pkts.filter_ping_reply(identifier=_pkt.icmpv6.echo.identifier).\ filter_ipv6_src_dst(DUT_LLA, REED_1_LLA).\ must_next() class Cert_6_1_4_REEDAttachConnectivity_ED(Cert_6_1_4_REEDAttachConnectivity_Base): TOPOLOGY = copy.deepcopy(Cert_6_1_4_REEDAttachConnectivity_Base.TOPOLOGY) TOPOLOGY[MTD]['mode'] = 'rn' class Cert_6_1_4_REEDAttachConnectivity_SED(Cert_6_1_4_REEDAttachConnectivity_Base): TOPOLOGY = copy.deepcopy(Cert_6_1_4_REEDAttachConnectivity_Base.TOPOLOGY) TOPOLOGY[MTD]['mode'] = '-' del (Cert_6_1_4_REEDAttachConnectivity_Base) if __name__ == '__main__': unittest.main()