mirror of
https://github.com/espressif/openthread.git
synced 2026-10-12 02:37:37 +00:00
Jonathan Hui
94dca41a86
This commit adds a new Nexus test case 1_3_SRP_TC_4 which implements the test specification for SRP key lease handling. The test verifies that: - A service instance name cannot be claimed even after the service instance lease has expired, as long as its key lease remains active. - The SRP server correctly manages key leases and rejects registration updates for hosts or services that are still claimed by a previous registration during the key lease period. - DNS and mDNS responses correctly reflect the state of registrations and their expirations. Changes: - Add tests/nexus/test_1_3_SRP_TC_4.cpp for test execution. - Add tests/nexus/verify_1_3_SRP_TC_4.py for pcap verification. - Update tests/nexus/CMakeLists.txt to include the new test. - Update tests/nexus/run_nexus_tests.sh to add it to DEFAULT_TESTS.
397 lines
18 KiB
Python
397 lines
18 KiB
Python
#!/usr/bin/env python3
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#
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# Copyright (c) 2026, The OpenThread Authors.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# 3. Neither the name of the copyright holder nor the
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# names of its contributors may be used to endorse or promote products
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# derived from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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import sys
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import os
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import struct
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# Add the current directory to sys.path to find verify_utils
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CUR_DIR = os.path.dirname(os.path.abspath(__file__))
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sys.path.append(CUR_DIR)
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import verify_utils
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from pktverify import consts
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from pktverify.addrs import Ipv6Addr, EthAddr
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from pktverify.bytes import Bytes
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def verify(pv):
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# 2.4. [1.3] [CERT] Key Lease
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#
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# 2.4.1. Purpose
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# To test the following:
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# - 1. Key lease handling on SRP server on DUT.
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# - 2. Verify that a service instance name cannot be claimed even after the service instance lease expired, if the
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# key lease is still active.
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#
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# 2.4.2. Topology
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# - BR 1 (DUT) - Thread Border Router and the Leader
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# - ED 1-Test Bed device operating as a Thread End Device, attached to BR_1
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# - ED 2-Test Bed device operating as a Thread End Device, attached to BR_1
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# - Eth 1-Test Bed border router device on an Adjacent Infrastructure Link
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#
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# Spec Reference | V1.1 Section | V1.3.0 Section
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# -----------------|--------------|---------------
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# SRP Server | N/A | 1.3
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pkts = pv.pkts
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pv.summary.show()
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BR_1_MLEID = Ipv6Addr(pv.vars['BR_1_MLEID_ADDR'])
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ED_1_MLEID = Ipv6Addr(pv.vars['ED_1_MLEID_ADDR'])
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ED_2_MLEID = Ipv6Addr(pv.vars['ED_2_MLEID_ADDR'])
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BR_1_ETH = EthAddr(pv.vars['BR_1_ETH'])
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ETH_1_ETH = EthAddr(pv.vars['Eth_1_ETH'])
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BR_1_SRP_PORT = int(pv.vars['BR_1_SRP_PORT'])
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ED_1_OMR_ADDR = Ipv6Addr(pv.vars['ED_1_OMR_ADDR'])
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ED_2_OMR_ADDR = Ipv6Addr(pv.vars['ED_2_OMR_ADDR'])
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SRP_SERVICE_NAME = '_thread-test._udp.default.service.arpa'
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SRP_INSTANCE_NAME1 = 'service-test-1.' + SRP_SERVICE_NAME
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SRP_INSTANCE_NAME3 = 'service-test-3.' + SRP_SERVICE_NAME
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SRP_HOST_NAME1 = 'host-test-1.default.service.arpa'
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SRP_HOST_NAME2 = 'host-test-2.default.service.arpa'
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MDNS_SERVICE_NAME = '_thread-test._udp.local'
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MDNS_INSTANCE_NAME1 = 'service-test-1.' + MDNS_SERVICE_NAME
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MDNS_HOST_NAME1 = 'host-test-1.local'
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SRP_SERVICE_PORT = 55555
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SRP_LEASE_30S_60S = Bytes(struct.pack('>II', 30, 60).hex())
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SRP_LEASE_30S_30S = Bytes(struct.pack('>II', 30, 30).hex())
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SRP_LEASE_10S_60S = Bytes(struct.pack('>II', 10, 60).hex())
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def verify_srp_update(pkts, dst, src, srp_port, instance_name, host_name, omr_addr, lease_data):
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return pkts.\
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filter_ipv6_dst(dst).\
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filter_ipv6_src(src).\
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filter(lambda p: p.udp.dstport == srp_port).\
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filter(lambda p: p.dns.flags.opcode == 5).\
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filter(lambda p: instance_name in verify_utils.as_list(p.dns.resp.name)).\
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filter(lambda p: host_name is None or host_name in verify_utils.as_list(p.dns.srv.target)).\
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filter(lambda p: omr_addr in verify_utils.as_list(p.dns.aaaa)).\
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filter(lambda p: p.dns.opt.data is not None and
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any(data.format_compact() == lease_data.format_compact() for data in p.dns.opt.data)).\
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must_next()
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# Step 1
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# - Device: BR_1 (DUT)
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# - Description (SRP-2.4): Enable: switch on.
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# - Pass Criteria:
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# - N/A
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print("Step 1: BR_1 (DUT) enable.")
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# Step 2
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# - Device: Eth 1, ED 1, ED 2
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# - Description (SRP-2.4): Enable
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# - Pass Criteria:
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# - N/A
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print("Step 2: Eth 1, ED 1, ED 2 enable.")
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# Step 3
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# - Device: BR_1 (DUT)
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# - Description (SRP-2.4): Automatically adds its SRP Server information in the Thread Network Data.
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# - Pass Criteria:
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# - The DUT's SRP Server information MUST appear in the Thread Network Data: it MUST contain a DNS/SRP Unicast
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# Dataset, or a DNS/SRP Anycast Dataset, or both.
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print("Step 3: BR_1 (DUT) adds its SRP Server information in the Thread Network Data.")
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pkts.\
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filter_mle_cmd(consts.MLE_DATA_RESPONSE).\
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filter(lambda p: 93 in verify_utils.as_list(p.thread_nwd.tlv.service.srp_dataset_identifier)).\
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filter(lambda p: any(l in (1, 19) for l in verify_utils.as_list(p.thread_nwd.tlv.service.s_data_len))).\
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must_next()
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# Step 4
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# - Device: ED 1
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# - Description (SRP-2.4): Harness instructs the device to send SRP Update: $ORIGIN default.service.arpa.
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# service-test-1._thread-test._udp ( SRV 1 1 55555 host-test-1 ) host-test-1 AAAA <OMR address of ED_1> with the
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# following options: Update Lease Option Lease: 30 seconds Key Lease: 60 seconds
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# - Pass Criteria:
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# - N/A
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print("Step 4: ED 1 sends SRP Update.")
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verify_srp_update(pkts, BR_1_MLEID, ED_1_MLEID, BR_1_SRP_PORT, SRP_INSTANCE_NAME1, SRP_HOST_NAME1, ED_1_OMR_ADDR,
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SRP_LEASE_30S_60S)
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# Step 5
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# - Device: BR 1 (DUT)
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# - Description (SRP-2.4): Automatically sends SRP Response.
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# - Pass Criteria:
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# - The DUT MUST send a valid SRP Response with RCODE=0 (NoError).
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print("Step 5: BR 1 (DUT) sends SRP Response.")
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last_response = pkts.\
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filter_ipv6_dst(ED_1_MLEID).\
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filter_ipv6_src(BR_1_MLEID).\
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filter(lambda p: p.dns.flags.response == 1).\
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filter(lambda p: p.dns.flags.rcode == 0).\
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must_next()
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# Step 6
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# - Device: ED_1
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# - Description (SRP-2.4): Harness instructs the device to unicast DNS query QType=SRV for
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# "service-test-1._thread-test_udp.default.service.arpa".
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# - Pass Criteria:
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# - N/A
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print("Step 6: ED 1 sends unicast DNS query QType=SRV.")
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pkts.\
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filter_ipv6_dst(BR_1_MLEID).\
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filter_ipv6_src(ED_1_MLEID).\
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filter(lambda p: p.udp.dstport == 53).\
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filter(lambda p: p.dns.flags.response == 0).\
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filter(lambda p: SRP_INSTANCE_NAME1 in verify_utils.as_list(p.dns.qry.name)).\
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must_next()
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# Step 7
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# - Device: BR 1 (DUT)
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# - Description (SRP-2.4): Automatically sends DNS response.
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# - Pass Criteria:
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# - The DUT MUST send a valid DNS Response containing answer record: $ORIGIN default.service.arpa.
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# service-test-1._thread-test._udp ( SRV 1 1 55555 host-test-1 )
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# - The DNS Response MAY contain in Additional records section: $ORIGIN default.service.arpa. host-test-1 AAAA
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# <OMR address of ED_1>
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print("Step 7: BR 1 (DUT) sends DNS response.")
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pkts.\
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filter_ipv6_dst(ED_1_MLEID).\
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filter_ipv6_src(BR_1_MLEID).\
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filter(lambda p: p.udp.srcport == 53).\
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filter(lambda p: p.dns.flags.response == 1).\
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filter(lambda p: p.dns.flags.rcode == 0).\
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filter(lambda p: SRP_SERVICE_PORT in verify_utils.as_list(p.dns.srv.port)).\
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filter(lambda p: SRP_HOST_NAME1 in verify_utils.as_list(p.dns.srv.target)).\
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must_next()
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# Step 8
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# - Device: ED 1
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# - Description (SRP-2.4): Harness instructs the device to send unicast DNS query QType=PTR for any services of type
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# _thread-test_udp.default.service.arpa.
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# - Pass Criteria:
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# - N/A
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print("Step 8: ED 1 sends unicast DNS query QType=PTR.")
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pkts.\
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filter_ipv6_dst(BR_1_MLEID).\
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filter_ipv6_src(ED_1_MLEID).\
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filter(lambda p: p.udp.dstport == 53).\
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filter(lambda p: p.dns.flags.response == 0).\
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filter(lambda p: SRP_SERVICE_NAME in verify_utils.as_list(p.dns.qry.name)).\
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must_next()
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# Step 9
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# - Device: BR 1 (DUT)
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# - Description (SRP-2.4): Automatically sends DNS Response.
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# - Pass Criteria:
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# - The DUT MUST send a valid DNS Response containing answer record: $ORIGIN default.service.arpa.
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# _thread-test._udp ( PTR service-test-1._thread-test._udp )
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# - The DNS Response MAY contain in Additional records section: $ORIGIN default.service.arpa.
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# service-test-1._thread-test._udp ( SRV 1 1 55555 host-test-1 ) host-test-1 AAAA <OMR address of ED_1>
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print("Step 9: BR 1 (DUT) sends DNS Response.")
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last_response = pkts.\
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filter_ipv6_dst(ED_1_MLEID).\
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filter_ipv6_src(BR_1_MLEID).\
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filter(lambda p: p.udp.srcport == 53).\
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filter(lambda p: p.dns.flags.response == 1).\
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filter(lambda p: p.dns.flags.rcode == 0).\
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filter(lambda p: SRP_INSTANCE_NAME1 in verify_utils.as_list(p.dns.ptr.domain_name)).\
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must_next()
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# Step 10
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# - Device: N/A
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# - Description (SRP-2.4): Harness waits for 35 seconds. Note: during this time there must be no automatic
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# reregistration of the service done by ED 1. This can be implemented on (OpenThread) ED_1 by either disabling
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# automatic service reregistration or by internally removing the service without doing the deregistration
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# request.
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# - Pass Criteria:
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# - N/A
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print("Step 10: Wait 35 seconds.")
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pkts.filter(lambda p: p.sniff_timestamp > last_response.sniff_timestamp + 34).next()
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# Step 11
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# - Device: ED 2
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# - Description (SRP-2.4): Harness instructs the device to send SRP Update: $ORIGIN default.service.arpa.
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# service-test-1._thread-test._udp ( SRV 0 0 55555 host-test-2 ) host-test-2 AAAA <OMR address of ED_2> with the
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# following options: Update Lease Option Lease: 30 seconds Key Lease: 30 seconds
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# - Pass Criteria:
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# - N/A
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print("Step 11: ED 2 sends SRP Update.")
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verify_srp_update(pkts, BR_1_MLEID, ED_2_MLEID, BR_1_SRP_PORT, SRP_INSTANCE_NAME1, SRP_HOST_NAME2, ED_2_OMR_ADDR,
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SRP_LEASE_30S_30S)
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# Step 12
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# - Device: BR 1. (DUT)
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# - Description (SRP-2.4): Automatically sends SRP Update Response, denying the registration because the key lease
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# for the expired service 'service-test-1' is still active. Note: spec for this is 3.2.5.2, 3.3.3, 3.3.5 and 5.1
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# of [draft-srp-23].
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# - Pass Criteria:
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# - The DUT MUST send a valid SRP Update Response with RCODE=6 (YXDOMAIN).
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print("Step 12: BR 1 (DUT) sends SRP Update Response (YXDOMAIN).")
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last_response = pkts.\
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filter_ipv6_dst(ED_2_MLEID).\
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filter_ipv6_src(BR_1_MLEID).\
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filter(lambda p: p.dns.flags.response == 1).\
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filter(lambda p: p.dns.flags.rcode == 6).\
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must_next()
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# Step 13
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# - Device: N/A
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# - Description (SRP-2.4): Harness waits for 30 seconds. Note: during this time there must be no automatic
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# reregistration of the service done by ED 2. This can be implemented on (Open Thread) ED_2 by either disabling
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# automatic service reregistration or by internally removing the service without doing the deregistration
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# request.
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# - Pass Criteria:
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# - N/A
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print("Step 13: Wait 30 seconds.")
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pkts.filter(lambda p: p.sniff_timestamp > last_response.sniff_timestamp + 29).next()
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# Step 14
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# - Device: ED 2
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# - Description (SRP-2.4): Harness instructs the device to send SRP Update: $ORIGIN default.service.arpa.
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# service-test-1._thread-test._udp ( SRV 1 1 55555 host-test-1 ) host-test-1 AAAA <OMR address of ED_2> Update
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# Lease Option Lease: 10 seconds Key Lease: 60 seconds Note: ED 2 here uses the hostname of ED 1 to verify that
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# the name host-test-1 has become available again, after key expiry thereaf. Note: the requested Lease time of
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# 10 seconds will be automatically adjusted by the SRP Server to 30 seconds (the minimum allowed).
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# - Pass Criteria:
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# - N/A
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print("Step 14: ED 2 sends SRP Update.")
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verify_srp_update(pkts, BR_1_MLEID, ED_2_MLEID, BR_1_SRP_PORT, SRP_INSTANCE_NAME1, SRP_HOST_NAME1, ED_2_OMR_ADDR,
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SRP_LEASE_10S_60S)
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# Step 15
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# - Device: BR 1 (DUT)
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# - Description (SRP-2.4): Automatically sends SRP Update Response.
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# - Pass Criteria:
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# - The DUT MUST send a valid SRP Response with RCODE = 0 (NoError).
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print("Step 15: BR 1 (DUT) sends SRP Response.")
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pkts.\
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filter_ipv6_dst(ED_2_MLEID).\
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filter_ipv6_src(BR_1_MLEID).\
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filter(lambda p: p.dns.flags.response == 1).\
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filter(lambda p: p.dns.flags.rcode == 0).\
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must_next()
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# Step 16
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# - Device: Eth_1
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# - Description (SRP-2.4): Harness instructs the device to send mDNS query QType PTR for any services of type
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# "_thread-test._udp.local."
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# - Pass Criteria:
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# - N/A
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print("Step 16: Eth 1 sends mDNS query QType PTR.")
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pkts.\
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filter(lambda p: p.eth.src == ETH_1_ETH).\
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filter(lambda p: p.udp.dstport == 5353).\
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filter(lambda p: p.mdns.flags.response == 0).\
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filter(lambda p: MDNS_SERVICE_NAME in verify_utils.as_list(p.mdns.qry.name)).\
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must_next()
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# Step 17
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# - Device: BR 1 (DUT)
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# - Description (SRP-2.4): Automatically sends mDNS Response.
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# - Pass Criteria:
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# - The DUT MUST send a valid mDNS Response containing only answer record: $ORIGIN local. _thread-test._udp (
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# PTR service-test-1._thread-test._udp )
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# - The mDNS Response MAY contain in Additional records section: $ORIGIN local.
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# Service-test-1._thread-test._udp ( SRV 1 1 55555 host-test-1 ) host-test-1 AAAA <OMR address of ED_2>
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print("Step 17: BR 1 (DUT) sends mDNS Response.")
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last_response = pkts.\
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filter(lambda p: p.eth.src == BR_1_ETH).\
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filter(lambda p: p.udp.dstport == 5353).\
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filter(lambda p: p.mdns.flags.response == 1).\
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filter(lambda p: MDNS_INSTANCE_NAME1 in verify_utils.as_list(p.mdns.ptr.domain_name)).\
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filter(lambda p: SRP_SERVICE_PORT in verify_utils.as_list(p.mdns.srv.port)).\
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filter(lambda p: MDNS_HOST_NAME1 in verify_utils.as_list(p.mdns.srv.target)).\
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filter(lambda p: ED_2_OMR_ADDR in verify_utils.as_list(p.mdns.aaaa)).\
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must_next()
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# Step 18
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# - Device: N/A
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# - Description (SRP-2.4): Harness waits for 35 seconds, for the service lease to expire.
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# - Pass Criteria:
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# - N/A
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print("Step 18: Wait 35 seconds.")
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pkts.filter(lambda p: p.sniff_timestamp > last_response.sniff_timestamp + 34).next()
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# Step 19
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# - Device: Eth_1
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# - Description (SRP-2.4): Harness instructs the device to send mDNS query QType PTR for any services of type
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# "_thread-test_udp.local."
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# - Pass Criteria:
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# - N/A
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print("Step 19: Eth 1 sends mDNS query QType PTR.")
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pkts.\
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filter(lambda p: p.eth.src == ETH_1_ETH).\
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filter(lambda p: p.udp.dstport == 5353).\
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filter(lambda p: p.mdns.flags.response == 0).\
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filter(lambda p: MDNS_SERVICE_NAME in verify_utils.as_list(p.mdns.qry.name)).\
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must_next()
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# Step 20
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# - Device: BR 1 (DUT)
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# - Description (SRP-2.4): Does not send mDNS Response, since the service with matching type has expired. Note:
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# although the key leases on service-test-1 and host-test-1 are still active now, the generic service pointer is
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# expired and therefore no result to the PTR query is given. There is no record with the generic name stored,
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# anymore.
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# - Pass Criteria:
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# - The DUT MUST NOT send an mDNS Response.
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print("Step 20: BR 1 (DUT) should not send mDNS Response.")
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pkts.\
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filter(lambda p: p.eth.src == BR_1_ETH).\
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filter(lambda p: p.udp.dstport == 5353).\
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filter(lambda p: p.mdns.flags.response == 1).\
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filter(lambda p: MDNS_INSTANCE_NAME1 in verify_utils.as_list(p.mdns.ptr.domain_name)).\
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must_not_next()
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# Step 21
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# - Device: ED 1
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# - Description (SRP-2.4): Harness instructs the device to send SRP Update with different service name but
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# conflicting host name: $ORIGIN default.service.arpa. service-test-3._thread-test._udp ( SRV 0 0 55555
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# host-test-1 ) host-test-1 AAAA <OMR address of ED_1> With the following options: Update Lease Option Lease:
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# 30 seconds Key Lease: 30 seconds
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# - Pass Criteria:
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# - N/A
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print("Step 21: ED 1 sends SRP Update with conflicting host name.")
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verify_srp_update(pkts, BR_1_MLEID, ED_1_MLEID, BR_1_SRP_PORT, SRP_INSTANCE_NAME3, SRP_HOST_NAME1, ED_1_OMR_ADDR,
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SRP_LEASE_30S_30S)
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# Step 22
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# - Device: BR 1 (DUT)
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# - Description (SRP-2.4): Automatically sends SRP Update Response, denying the registration because host
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# 'host-test-1' is already claimed by ED_2 for its key lease time.
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# - Pass Criteria:
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# - The DUT MUST send a valid SRP Update Response with RCODE = 6 (YXDOMAIN).
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print("Step 22: BR 1 (DUT) sends SRP Update Response (YXDOMAIN).")
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pkts.\
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filter_ipv6_dst(ED_1_MLEID).\
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filter_ipv6_src(BR_1_MLEID).\
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filter(lambda p: p.dns.flags.response == 1).\
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filter(lambda p: p.dns.flags.rcode == 6).\
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must_next()
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if __name__ == '__main__':
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verify_utils.run_main(verify)
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