archived allenap-libtftp

allenap's TFTP library

3 releases

Uses old Rust 2015

0.2.2 Apr 4, 2022
0.2.1 Nov 27, 2018
0.2.0 Dec 6, 2016

45 downloads per month
Used in allenap-tftp-offload



⚠️ Not supported

This crate is no longer supported and will not be updated. It was an experiment and is unlikely to be useful to anyone in its present state. The code itself may be a minor curiosity... but probably not. This is not the TFTP goodness you're looking for. Sorry!

allenap's TFTP library for Rust

This library will let you build a read-only TFTP server in Rust with the following features:

  • RFC-1350 - The TFTP Protocol (Revision 2)

  • RFC-2347 - TFTP Option Extension

  • RFC-2348 - TFTP Blocksize Option

  • RFC-2349 - TFTP Timeout Interval and Transfer Size Options

  • blkno rollover, allowing tranfers of unlimited size.

The places to start are the top-level serve function, the Handler trait, and the rrq.serve function.

The intent is to support writable servers, and clients. The code is alpha level right now, and given time I would change quite a lot, but for now this works.


I learned a lot from reading the code in Arjan Topolovec's rust-tftp. In an ideal world I would have instead contributed back to that, and I may yet do that, but I started on this project as a way to learn Rust.

I've read a lot of material about Rust and a lot of Rust code, but writing code has been the best way to internalise that knowledge, and to find out what I thought I knew but didn't. Starting from scratch with rust-tftp as a guide has worked well for me.

Thank you Arjan Topolovec.

To do

  • Fix the layering violation used to efficiently construct outgoing DATA packets.

  • Wait for ACK after sending OACK.

  • Support the windowsize option; see RFC-7440.

  • More unit tests.

  • Some integration tests.

  • Clean-ups, refactorings, and so on: it's kind of rough-n-ready right now.


~26K SLoC