#!/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 config import mle import thread_cert from pktverify.consts import MLE_PARENT_REQUEST, MLE_PARENT_RESPONSE, MLE_CHILD_ID_REQUEST, SOURCE_ADDRESS_TLV, MODE_TLV, TIMEOUT_TLV, CHALLENGE_TLV, RESPONSE_TLV, LINK_LAYER_FRAME_COUNTER_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 from pktverify.packet_verifier import PacketVerifier from pktverify.null_field import nullField LEADER = 1 ROUTER1 = 2 ROUTER2 = 3 ROUTER3 = 4 ROUTER4 = 5 # Test Purpose and Description: # ----------------------------- # The purpose of this test case is to verify that the DUT chooses # to attach to a router with better connectivity # # Test Topology: # ------------- # Leader--Router1 # / \ / # Router2 Router3 # \ / # Router4[DUT] # # DUT Types: # ---------- # Router class Cert_5_1_08_RouterAttachConnectivity(thread_cert.TestCase): USE_MESSAGE_FACTORY = False TOPOLOGY = { LEADER: { 'name': 'LEADER', 'mode': 'rdn', 'allowlist': [ROUTER1, ROUTER2, ROUTER3] }, ROUTER1: { 'name': 'ROUTER_1', 'mode': 'rdn', 'allowlist': [LEADER, ROUTER3] }, ROUTER2: { 'name': 'ROUTER_2', 'mode': 'rdn', 'allowlist': [LEADER, ROUTER4] }, ROUTER3: { 'name': 'ROUTER_3', 'mode': 'rdn', 'allowlist': [LEADER, ROUTER1, ROUTER4] }, ROUTER4: { 'name': 'ROUTER_4', 'mode': 'rdn', 'allowlist': [ROUTER2, ROUTER3] }, } def test(self): self.nodes[LEADER].start() self.simulator.go(config.LEADER_STARTUP_DELAY) self.assertEqual(self.nodes[LEADER].get_state(), 'leader') for i in range(2, 5): self.nodes[i].start() self.simulator.go(config.ROUTER_STARTUP_DELAY) for i in range(2, 5): self.assertEqual(self.nodes[i].get_state(), 'router') self.simulator.go(config.MAX_ADVERTISEMENT_INTERVAL) self.nodes[ROUTER4].start() self.simulator.go(config.ROUTER_STARTUP_DELAY) self.assertEqual(self.nodes[ROUTER4].get_state(), 'router') def verify(self, pv): pkts = pv.pkts pv.summary.show() ROUTER_2 = pv.vars['ROUTER_2'] ROUTER_3 = pv.vars['ROUTER_3'] ROUTER_4 = pv.vars['ROUTER_4'] # Step 1: Verify all routers and Leader are sending MLE advertisements. for i in (1, 2, 3): with pkts.save_index(): pv.verify_attached('ROUTER_%d' % i) # Step 3: 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 # If the DUT sends multiple MLE Parent Requests # - The first one MUST be sent only to all Routers # - Subsequent ones MAY be sent to all Routers and REEDS # - Version TLV # If the first MLE Parent Request was sent to all Routers and # REEDS, the test fails. pkts.filter_wpan_src64(ROUTER_4).\ 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 ).\ must_next() # Step 4: Router2 and Router3 respond with a MLE Parent Response. # The following TLVs MUST be present in the MLE Parent Response: # - Challenge TLV # - Connectivity TLV # - Leader Data TLV # - Link-layer Frame Counter TLV # - Link Margin TLV # - Response TLV # - Source Address # - Version TLV # - MLE Frame Counter TLV (optional) for i in (2, 3): with pkts.save_index(): pkts.filter_wpan_src64(pv.vars['ROUTER_%d' % i]).\ filter_wpan_dst64(ROUTER_4).\ 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 5: DUT sends a MLE Child ID Request to Router3. # The following TLVs MUST be present in the MLE Child ID Request: # - Link-layer Frame Counter TLV # - Mode TLV # - Response TLV # - Timeout TLV # - TLV Request TLV # - Address16 TLV # - Network Data TLV # - Route64 TLV (optional) # - Version TLV # - MLE Frame Counter TLV (optional) # The following TLV MUST NOT be present in the MLE Child ID Request: # - Address Registration TLV _pkt = pkts.filter_wpan_src64(ROUTER_4).\ filter_wpan_dst64(ROUTER_3).\ filter_mle_cmd(MLE_CHILD_ID_REQUEST).\ filter(lambda p: { LINK_LAYER_FRAME_COUNTER_TLV, MODE_TLV, RESPONSE_TLV, TIMEOUT_TLV, TLV_REQUEST_TLV, ADDRESS16_TLV, NETWORK_DATA_TLV, VERSION_TLV } <= set(p.mle.tlv.type) and\ p.mle.tlv.addr16 is nullField and\ p.thread_nwd.tlv.type is nullField ).\ must_next() _pkt.must_not_verify(lambda p: (ADDRESS_REGISTRATION_TLV) in p.mle.tlv.type) if __name__ == '__main__': unittest.main()