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|setup.py||added advanced cull and write functions, as well as HSRP builder.|
pylibnet - Python module for the libnet packet injection library Copyright (C) 2009 Nadeem Douba WELCOME Thank you for trying out pylibnet. I hope it will be of great value to you. The examples in this directory come from the efforts of you (the people) and I have been inspired as of late to contribute to it as well. INSTALL To install this module you will need to install the following: * libnet-1.1.x: to inject your packets. All these prerequisites can be installed using apt-get, port, or fink. Debian users can install the following packages to meet the pre- requisite requirements: * build-essential * libnet1-dev * python-dev For Mac OS/X users, please use the libnet libraries that come from the Fink or MacPorts distribution. If you try to compile libnet in Mac OS/X you will run into a bug that causes "pblock not found" errors. Mac OS/X users will have to install the following prerequisites in MacPorts: * libnet11 * python25 (this is essential since Mac OS/X Python only runs in 64-bit mode and the libnet lib is 32-bit only) After installing python25 use the following command to make the MacPorts distro of Python active: sudo python_select python25 Please let me know if we can improve this wrapper in any way. The documentation is embedded in the library and can be accessed via the help() function in the Python interpretter or pydoc. Happy Injecting! LIBNETERPRETER lnsh is now part of the standard package for pylibnet. As part of this package lnsh will be automatically installed to /usr/local/bin/lnsh for your hacking convenience. More details about lnsh below. EXAMPLES The following examples require pylibnet, libnet and root access in order for them to work. The newest addition to the examples directory is 'lnsh'. It is an interactive pylibnet console that provides a lot of shortcuts. Take a look at the example scripts in the lnsh directory. You can use this interpretter in interactive as well as scripted mode. A few things to note: - In interactive mode functions with no parameters can be called without the round brackets. For example, 'ipv4' would create an ipv4 packet header with all sorts of random defaults. However, In scripted mode functions require paranthesis. - The builders can be called without the 'autobuild_' and 'build_' prefixes. For automatic functions use 'auto_<name>', and for non-automatic functions use just the '<name>'. For example, autobuild_arp translates to auto_arp, while build_ipv4 translates to ipv4. The old function names are available as well for backwards compatibility. - The diagnostic functions can be used without the 'get' prefixes. For example, 'getpacket' translates to 'packet' and so on. Also the 'diag_*' functions can be called without the 'diag_' prefix. For example, 'diag_dump_context' is just 'dump_context'. - Finally, the injection and device parameters for the context is specified at runtime. No need to build it within the script itself. In script mode you will need to either modify the she-bang (#!) line to specify the appropriate settings or specify them at runtime. For example, 'tcpsyn.libnet' can be run using the '-i' parameter ('./tcpsyn.libnet -i eth1') or without the '-i' parameter ('./tcpsyn.libnet') because of the she-bang ('#!/usr/local/bin/lnsh -i eth0 -t RAW4'). Additionally, lnsh scripts can have their own parameters. Take a look at how the dnsv4.libnet example script looks like for reference. The she-bang must have a '--' appended to the end of it to accept parameters (yes I know... it's ugly. but it works). For help in interactive mode just run lnsh with -h for help or type 'help' at the command line. Hope you will enjoy using lnsh as I thoroughly enjoyed coding it (yes... I have no life). YOUR CONTRIBUTIONS OR IDEAS Please feel free to contribute examples or ideas to this project. Your effort would be greatly appreciated by myself and most importantly, the open source community. I can be reached at <ndouba at gmail dot com>. THANK YOU To all those who have contributed and provided bug reports.