69 lines
1.7 KiB
Plaintext
69 lines
1.7 KiB
Plaintext
==============
|
|
NetfilterQueue
|
|
==============
|
|
|
|
NetfilterQueue provides access to packets matched by an iptables rule in
|
|
Linux. Packets so matched can be accepted, dropped, altered, or given a mark.
|
|
|
|
Libnetfilter_queue (the netfilter library, not this module) is part of the `Netfilter project <http://netfilter.org/projects/libnetfilter_queue/>`_.
|
|
|
|
Example
|
|
=======
|
|
|
|
Coming soon...
|
|
|
|
Installation
|
|
============
|
|
|
|
NetfilterQueue is a C extention module that links against libnetfilter_queue. Before installing, ensure you have:
|
|
|
|
1. A C compiler
|
|
|
|
2. Python development files
|
|
|
|
3. Libnetfilter_queue development files and associated dependencies
|
|
|
|
On Debian or Ubuntu, these files are install with::
|
|
|
|
sudo apt-get install build-essential python-dev libnetfilter-queue-dev
|
|
|
|
From PyPI
|
|
---------
|
|
|
|
To install from PyPI by pip::
|
|
|
|
pip install netfilterqueue
|
|
|
|
From source
|
|
-----------
|
|
|
|
To install from source::
|
|
|
|
wget http://pypi.python.org/packages/source/n/netfilterqueue/netfilterqueue-0.1.tar.gz
|
|
tar -xvzf netfilterqueue-0.1.tar.gz
|
|
cd netfilterqueue-0.1
|
|
python setup.py install
|
|
|
|
Setup will use Cython if it is installed, regenerating the .c source from the .pyx before compiling the .so.
|
|
|
|
Usage
|
|
=====
|
|
|
|
Coming soon...
|
|
|
|
Now route packets to the queue::
|
|
|
|
# iptables -I INPUT -p tcp --dport 80 -j NFQUEUE --queue-num 1
|
|
|
|
The only special part of the rule is the target. Rules can have any match and
|
|
can be added to any table or chain.
|
|
|
|
Valid queue numbers are integers from 0 to 65,536 inclusive.
|
|
|
|
Limitations
|
|
===========
|
|
|
|
TODO: fix this up
|
|
|
|
* compiled to max 2048-byte packets, so won't work on LO?
|
|
* full API not implemented: omits set_payload(), interface methods, and what else? |