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Cython libpcap

Project description

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Cython libpcap, read/write/merge/capture

Features

  • Read pcap file
  • Write pcap file
  • Merge pcap file
  • Multi-file quick merge
  • Get first iface
  • Get iface list
  • Send raw packet
  • Capture data

Installation

To install python-libpcap, run this command in your terminal:

$ sudo apt-get install libpcap-dev
$ pip3 install Cython
$ pip3 install python-libpcap

Demo

Console:

# Multi-file quick merge
$ mpcap -i pcap/ -o pcap.pcap port 502

# Capture data packet
$ sudo capture -i enp2s0 -v

Read pcap:

from pylibpcap.pcap import rpcap


for len, t, pkt in rpcap("tests/dns.pcap"):
    print("Buf length:", len)
    print("Time:", t)
    print("Buf:", pkt)

Write pcap:

from pylibpcap import wpcap


buf = b'\x00\xc0\x9f2A\x8c\x00\xe0\x18\xb1\x0c\xad\x08\x00E\x00\x008' \
      b'\x00\x00@\x00@\x11eG\xc0\xa8\xaa\x08\xc0\xa8\xaa\x14\x80\x1b' \
      b'\x005\x00$\x85\xed\x102\x01\x00\x00\x01\x00\x00\x00\x00\x00' \
      b'\x00\x06google\x03com\x00\x00\x10\x00\x01'


wpcap(buf, "pcap.pcap")
wpcap([buf, buf], "pcap.pcap)
from pylibpcap import OpenPcap


with OpenPcap("pcap.pcap", "a") as f:
    f.write(buf)

Merge pcap:

from pylibpcap.pcap import mpcap


mpcap("demo.pcap", "demo2.pcap")

mpcap("pcap/", "output.pcap", "port 502")

Get first iface:

from pylibpcap.pcap import get_first_iface

print(get_first_iface())

Get iface list:

from pylibpcap import get_iface_list

print(get_iface_list())

Send raw packet:

from pylibpcap import send_packet

send_packet("enp2s0", b"")

Capture data:

from pylibpcap.pcap import sniff


for plen, t, buf in sniff("enp2s0", filters="port 53", count=3, promisc=1, out_file="pcap.pcap"):
    print("[+]: Payload len=", plen)
    print("[+]: Time", t)
    print("[+]: Payload", buf)

Credits

This package was created with Cookiecutter and the caizhengxin/cookiecutter-package project template.

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