Python PCAP module
This is a simplified object-oriented Python wrapper for libpcap - the current tcpdump.org version, and the WinPcap port for Windows.
Example use:
>>> import pcap
>>> sniffer = pcap.pcap(name=None, promisc=True, immediate=True, timeout_ms=50)
>>> addr = lambda pkt, offset: '.'.join(str(ord(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)))
...
Windows notes
WinPcap has compatibility issues with Windows 10, therefore it's recommended to use Npcap (Nmap's packet sniffing library for Windows, based on the WinPcap/Libpcap libraries, but with improved speed, portability, security, and efficiency). Please enable WinPcap API-compatible mode during the library installation.
Installation
This package requires:
- libpcap-dev
- python-dev
To install run:
pip install pypcap
Installation from sources
Please clone the sources and run:
python setup.py install
Note for Windows users: Please download the Npcap SDK, unpack the archive and put it into the sibling directory as wpdpack (setup.py will discover it).
Sample procedure in PowerShell:
cd .. wget -usebasicparsing -outfile npcap-sdk-0.1.zip https://nmap.org/npcap/dist/npcap-sdk-0.1.zip Expand-Archive -LiteralPath npcap-sdk-0.1.zip mv npcap-sdk-0.1\npcap-sdk-0.1 wpdpack cd pypcap python setup.py install
Support
Visit https://github.com/pynetwork/pypcap for help!
Development notes
Regenerating C code
The project uses Cython to generate the C code, it's recommended to install it from sources: https://github.com/cython/cython
To regenerate code please use:
cython pcap.pyx
Building docs
To build docs you need the following additional dependencies:
pip install sphinx mock sphinxcontrib.napoleon
Please use build_sphinx task to regenerate the docs:
python setup.py build_sphinx