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<title>TFTPy - A Pure Python TFTP Implementation</title>
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<h1>TFTPy - A Pure Python TFTP Implementation</h1>
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<div class="menu">
<ul>
<li><a href="#about">About TFTPy</a></li>
<li><a href="#features">Features</a></li>
<li><a href="#plans">Future Plans</a></li>
<li><a href="#code">The Code</a></li>
<li><a href="#support">Support</a></li>
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<a name="about" />
<h2>About TFTPy</h2>
<p>TFTPy is a pure Python implementation of the
<a href="http://en.wikipedia.org/wiki/Trivial_File_Transfer_Protocol">Trivial FTP protocol</a>.</p>
<p>I wrote it because the VoIP company that I work for uses
TFTP to pull firmware loads for our sets, and at times when this
doesn't work we use a Windows-based diagnostic tool to troubleshoot
the connection.</p>
<p>As all of the computers in my home run some flavour of
<a href="http://en.wikipedia.org/wiki/Linux">Linux</a> or
<a href="http://en.wikipedia.org/wiki/Freebsd">FreeBSD</a>,
this tool wasn't much use to me, so I started one of my own.
I decided to use <a href="http://www.python.org">Python</a>
since it's comfortable and available for the platforms that I care
about, and was surprised to not find a pre-existing TFTP library for
it. So, I wrote one, and here it is. It's not 1.0 yet, but
downloading is production-ready IMHO, as some of the people using it
tell me.</p>
<a name="features" />
<h2>Features</h2>
<p>At this time, it supports the following RFCs:
<ul>
<li>
<a href="http://www.faqs.org/rfcs/rfc1350.html">1350</a>
The TFTP Protocol, revision 2 (downloads only, octet mode only)
</li>
<li>
<a href="http://www.faqs.org/rfcs/rfc2347.html">2347</a>
TFTP Option Extension
</li>
<li>
<a href="http://www.faqs.org/rfcs/rfc2348.html">2348</a>
TFTP Blocksize Option
</li>
<li>
<a href="http://www.faqs.org/rfcs/rfc2349.html">2349</a>
TFTP Timeout Interval and Transfer Size Options (just the
tsize option right now)
</li>
</ul>
</p>
<a name="plans" />
<h2>Future Plans</h2>
<p>I do have plans for this code before a 1.0 release, including the
following:
<ul>
<li>Complete overhaul of the internal state machine.</li>
<li>Full RFC 1350 compliance, including netascii mode (I could
care less about "mail" mode), and uploads (uploads are
experimental right now and are on the "upload-patch" branch on
Github).</li>
<li>Symmetric UDP support. I don't know of an RFC for this but
it's a no-brainer for NAT traversal. In this mode the server
should always respond on the port that the RRQ was sent to, so
stateful firewalls will permit the response.</li>
<li>Documentation!</li>
</ul>
</p>
<a name="code" />
<h2>The Code</h2>
<p>You can find the latest release at the SourceForge
<a href="http://www.sf.net/projects/tftpy/">Project Page</a>, as a
source tarball. It should also be in <a
href="http://pypi.python.org/pypi">PyPi</a>, so you can use
easy_install if you prefer.</p>
<p>The latest code though is always on the master branch
in <a href="http://github.com">Github</a>. I did use SVN in
SourceForge for a while, but after discovering Git I couldn't go back.
To clone the repository, run the following command using git
<pre>
git clone git://github.com/msoulier/tftpy.git
</pre>
Patches welcome, even if I can't guarantee response time. You can
of course send me the url of a public git repository to pull from
as well.</p>
<p>The Github project page is <a
href="http://github.com/msoulier/tftpy/tree/master">right
here</a>.</p>
</p>
<a name="support" />
<h2>Support</h2>
<p>SourceForge doesn't make the mailing list easy to find, so
<a href="https://lists.sourceforge.net/lists/listinfo/tftpy-general">here
is a direct link</a> if you'd like to join.</p>
<p>Feel free to <a href="mailto:msoulier@digitaltorque.ca">email
me</a> with any questions, or contact me through github. I'm also
"msoulier" in <a href="http://identi.ca">identi.ca</a>.</p>
<hr />
<p>Last updated: April 8, 2009.</p>
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