Add runtime peer management to the FIPS daemon via control socket
commands, and a new chaos simulation scenario that exercises dynamic
topology mutation with ephemeral node identities.
Daemon (connect/disconnect commands):
- Extend control socket Request with optional params field
- Add commands.rs module for mutating command dispatch, separate from
read-only queries
- Add api_connect() on Node: builds ephemeral PeerConfig (no auto-
reconnect), pre-seeds identity cache, reuses initiate_peer_connection
- Add api_disconnect() on Node: calls remove_active_peer(), clears
retry_pending to suppress reconnection
- Route non-show_* commands to async command dispatch in rx_loop
fipsctl CLI:
- Add Connect and Disconnect subcommands accepting npub or hostname
- Resolve hostnames from /etc/fips/hosts before sending to daemon
- Refactor socket I/O into reusable send_request helper
Chaos simulator (maelstrom scenario):
- Add PeerChurnManager: periodically disconnects a random active link
and connects a random unconnected node pair via control socket
- Add send_command() to control.py using base64-encoded JSON payloads
to avoid shell quoting issues in docker exec
- Add PeerChurnConfig to scenario with interval and ephemeral_fraction
- Ephemeral identity support: nodes configured without nsec generate
fresh keypairs on restart; simulator queries show_status for new
npub and updates its cache via on_node_restart callback
- Add maelstrom.yaml: all chaos dimensions (netem, link flaps, node
churn, peer topology churn, traffic) with 50% ephemeral identity
Add a Unix domain socket interface for querying node state at runtime.
A spawned tokio task accepts connections and communicates with the main
event loop via mpsc/oneshot channels, keeping all Node access
single-threaded.
Includes:
- src/control/ module with socket lifecycle, JSON protocol, and 11
query handlers (status, peers, links, tree, sessions, bloom, mmp,
cache, connections, transports, routing)
- Separate fipsctl binary for CLI queries (fipsctl show <command>)
- ControlConfig in node configuration (enabled, socket_path)
- Integration into the main select! event loop
Johnathan Corgan