mirror of
https://github.com/espressif/openthread.git
synced 2026-11-12 01:11:11 +00:00
Jonathan Hui
33f976814a
On macOS, XNU's MLDv2 implementation keeps an in6_multi entry in the MLD_LEAVING_MEMBER state after setsockopt(IPV6_LEAVE_GROUP) until the final MLDv2 state-change report retransmission timer expires, which uses a random delay in [1, MLD_URI_INIT] (1 to 3 seconds, plus up to 500 ms timer leeway). Only after the final report is sent does the kernel detach the membership and emit RTM_DELMADDR on the routing socket. A fixed 2-second sleep after IPV6_LEAVE_GROUP causes intermittent failures on macOS whenever the random retransmission delay is >= 2 seconds. Poll ot-ctl ipmaddr once per second for up to 10 seconds when verifying multicast group join and leave.
80 lines
3.1 KiB
Python
Executable File
80 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python3
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#
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# Copyright (c) 2020, 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 socket
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import struct
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import subprocess
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import sys
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import time
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from ipaddress import ip_address
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def get_maddrs(if_name):
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proc = subprocess.run(['ot-ctl', '-I', if_name, 'ipmaddr'], stdout=subprocess.PIPE, check=True)
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lines = proc.stdout.decode().split()
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if 'Done' not in lines:
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raise RuntimeError(f'ot-ctl command did not complete successfully: {lines}')
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return [ip_address(l) for l in lines if l.startswith('ff')]
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def wait_for_maddr(if_name, group, expected_present, timeout=10):
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group_addr = ip_address(group)
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for i in range(timeout):
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maddrs = get_maddrs(if_name)
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print(maddrs)
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if (group_addr in maddrs) == expected_present:
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return True
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if i < timeout - 1:
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time.sleep(1)
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return False
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def main():
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group = 'ff02::158'
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if_index = int(sys.argv[1])
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if_name = sys.argv[2]
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with socket.socket(socket.AF_INET6, socket.SOCK_DGRAM) as s:
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s.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_IF, if_index)
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s.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP,
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struct.pack('16si', socket.inet_pton(socket.AF_INET6, group), if_index))
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if not wait_for_maddr(if_name, group, True):
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return -1
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s.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_LEAVE_GROUP,
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struct.pack('16si', socket.inet_pton(socket.AF_INET6, group), if_index))
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if not wait_for_maddr(if_name, group, False):
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return -1
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return 0
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if __name__ == '__main__':
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exit(main())
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