.gitignore | ||
pyPlc.py | ||
pyPlcHomeplug.py | ||
pyPlcWorker.py | ||
readme.md | ||
test_slac.py |
Some try-outs with Python and network adaptor low-level communiation
Installation / Preconditions
Tested with windows10
- Install python (windows automatically launches the installer if you type „python“ into the search field of the task bar)
- Wireshark is already installed, this includes the pcap driver, which is necessary for low-level-network-interaction
Attention: There are (at least) three different python-libs available for pcap:
- Libpcap
- Pylibpcap (But: only Python2)
- Pypcap (recommented on https://stackoverflow.com/questions/63941109/pcap-open-live-issue)
- Pcap-ct (https://pypi.org/project/pcap-ct/)
python -m pip install --upgrade pcap-ct This is fighting against the Libpcap-installation, so we need to deinstall the second: python -m pip uninstall libpcap Then again install pcap-ct, and finally add in the libpcap_platform__init__py the missing is_osx = False.
Now, in the IDLE shall 3.10.6, the import works: import pcap sniffer = pcap.pcap(name=None, promisc=True, immediate=True, timeout_ms=50) addr = lambda pkt, offset: '.'.join(str(pkt[i]) for i in range(offset, offset + 4)) for ts, pkt in sniffer: print('%d\tSRC %-16s\tDST %-16s' % (ts, addr(pkt, sniffer.dloff + 12), addr(pkt, sniffer.dloff + 16)))
Test image
(Just added in the Github web interface while editing the readme.md, by pressing Ctrl-V)
Further steps
(to be continued)