tailfeather

tailfeather is a no_std, allocation-free implementation of the protocol pieces needed by a small Tailscale-compatible mesh node. It exposes the keys, noise, control, netmap, disco, derp, and node modules, and reexports wirefeather as tunnel and micro-h2 as http2.

The transport-agnostic Node is driven cooperatively:

use tailfeather::{Node, keys::{Identity, Rng}};

struct R;
impl Rng for R { fn fill_bytes(&mut self, out: &mut [u8]) { out.fill(42); } }

let mut node = Node::<8>::factory_reset(Identity::generate(&mut R), 1);
assert!(node.requires_persistence());

This crate is experimental protocol software, not an audited VPN product.