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secdev
Flaky DoIP test on MacOSX
Brief description
The following issue occurs sometimes in the CI pipeline:
Regression tests for the DoIP layer
━ Run at 15:14:56 from [test/contrib/automotive/doip.uts] by UTscapy in 1.744396448135376
└ Passed=35
└ Failed=1
######
## DoIP Communication tests
######
###(029)=[failed] Test DoIPSocket 2
>>> server_up = threading.Event()
>>> def server():
... buffer = b'\x02\xfd\x80\x02\x00\x00\x00\x05\x00\x00\x00\x00\x00\x02\xfd\x80\x01\x00\x00\x00\n\x10\x10\x0e\x80P\x03\x002\x01\xf4'
... sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
... try:
... sock.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)
... sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
... sock.bind(('127.0.0.1', 13400))
... sock.listen(1)
... server_up.set()
... connection, address = sock.accept()
... for i in range(len(buffer)):
... connection.send(buffer[i:i+1])
... time.sleep(0.01)
... connection.close()
... finally:
... sock.close()
...
>>>
>>> server_thread = threading.Thread(target=server)
>>> server_thread.start()
>>> server_up.wait(timeout=1)
True
>>> sock = DoIPSocket(activate_routing=False)
>>>
>>> pkts = sock.sniff(timeout=1, count=2)
>>> server_thread.join(timeout=1)
>>> assert len(pkts) == 2
Traceback (most recent call last):
File "<input>", line 2, in <module>
AssertionError
@gpotter2 Do you may have an idea what could go wrong in this test?
Scapy version
Latest
Python version
3.12
Operating system
Mac OSX
Additional environment information
No response
How to reproduce
https://github.com/secdev/scapy/actions/runs/8911100231/job/24471714477
Actual result
No response
Expected result
No response
Related resources
No response
Unfortunately I don't have a Mac so I can't debug this issue in depth. Since this test doesn't fail every time, I guess it might be some race condition or something OSX specific. Do you may have an idea?