TFTP (Trivial File Transfer Protocol) client and server implementation in Python.
RFCs supported:
- 1350 - The TFTP Protocol (Revision 2)
- 2347 - TFTP Option Extension
- 2348 - TFTP Blocksize Option
- 7440 - TFTP Windowsize Option
Additional features:
- Block ID rollover for sending large files
Limitations:
- Only octet transfer mode is supported
- Timeouts will work incorrectly in case of a malicious client sending invalid packets (after receiving an invalid packet, the timeout timer will be reset)
- Python 3.6+
Client:
client.py -g <filename> <server-hostname> [port]
Use -p instead of -g to upload (--put) the file instead of downloading
(--get).
Server:
server.py [-p <port>] <server-root>
There is also --help option available that explains all the options
available, such as block and window size for the client and disabling uploads
for the server.