p2p-update

Peer-to-Peer Secure Update

This project aims to provide a framework to securely distribute system update using peer-to-peer procotol that works in heterogeneous network environment, in the presence of NATs and firewalls, where there is no necessarily direct access from a management node to the devices being updated.

The framework combines several key techniques:

1. STUN-based UDP hole punching to discover and open NAT bindings
2. A gossip protocol to deliver short messages to distribute update notifications
3. BitTorrent to securely distribute the software update

This project is part of Federated RaspberryPi micro-Infrastructure Testbed - FRuIT.

To build

Requirements:

• Go version >=1.9
• dep (https://github.com/golang/dep)

cd p2p-update
dep ensure
./build

This generates an executable binary file: p2pupdate.

To run the server

./p2pupdate server

The server runs a lightweight STUN service to bootstrap a new peer and advertise its session to existing peers. Both the update notification and file are distributed using peer-to-peer protocols.

To run the agent

./p2pupdate agent

Option --config-file is used to pass a custom config file.

Option --default-config prints default configuration to standard output.

License: Apache Version 2.0.