Cherry-picked from v0l PR #6 (issue #5):
1. remove_active_peer() now removes the end-to-end session from
self.sessions when evicting a peer. The stale Established entry
caused initiate_session() to silently return Ok(()) via the
is_established() guard, preventing session re-establishment after
link-layer reconnection.
2. initiate_peer_connections() pre-seeds the identity cache from
configured peer npubs at startup, so TUN packets can be dispatched
immediately without waiting for handshake completion.
3. schedule_reconnect() preserves accumulated backoff when a retry
entry already exists, preventing exponential backoff reset on
repeated link-dead cycles.
Includes regression tests for all three fixes.
Previously, static peers configured with AutoConnect gave up after 6
attempts (1 initial + 5 retries). If the remote peer was offline at
startup, the node permanently abandoned the connection. The reconnect
path (after MMP link-dead) already retried indefinitely but only
activated after a peer had been previously connected.
Remove the reconnect parameter from schedule_retry() and always set
reconnect=true when creating retry entries, since only auto-connect
peers reach this code path. The 300s backoff cap prevents resource waste.
The max_retries=0 config still works as an explicit kill switch.
Auto-reconnect:
- Add per-peer auto_reconnect config (default true) to PeerConfig
- schedule_reconnect() feeds removed peers back into retry system with
unlimited retries and exponential backoff after MMP dead timeout
- RetryState gains reconnect flag to distinguish startup retries
(max_retries-limited) from auto-reconnect (unlimited)
Retry re-fire fix:
- process_pending_retries() now pushes retry_after_ms past the handshake
timeout window after successful initiate_peer_connection(), preventing
retries from firing every tick with no backoff
Chaos sim improvements:
- Directed outbound configs: BFS spanning tree + lower-ID-first assignment
eliminates dual-connect race conditions in simulation
- Save runner log (runner.log) alongside per-node logs for event correlation
- Increase churn-20 traffic aggressiveness and node churn (max_down_nodes
3→5, traffic interval min 0s, duration max 90s, concurrent flows 5→10)
Replace raw NodeAddr hex strings in log output with human-readable
identifiers using a four-tier lookup: configured alias, active peer
short npub, session endpoint short npub, or truncated hex fallback.
- Add PeerIdentity::short_npub() for compact npub display (npub1xxxx...yyyy)
- Add NodeAddr::short_hex() for compact hex fallback (first 4 bytes + ...)
- Add peer_aliases map populated at startup from peer config
- Add Node::peer_display_name() with four-tier resolution
- Add SessionEntry::remote_pubkey() accessor for session-layer lookups
- Update all 120 log field occurrences across 11 handler/node files
- Pass pre-computed display names to MMP static metric/teardown methods
to work around borrow checker constraints in iterator loops
Per-packet happy-path events (UDP send/receive, TUN I/O, MMP report
processing, TreeAnnounce/FilterAnnounce sent, RTT samples) moved from
debug to trace. Periodic maintenance and retry scheduling moved from
info to debug. Session state changes (established, initiated, torn
down) and transport stop promoted from debug to info. MMP report send
failures demoted from warn to debug (normal under churn).
Fix promote_connection() to detect and clean up pending outbound
handshakes to the same peer, not just already-promoted peers. Previously,
when an inbound handshake completed while an outbound was still pending,
the outbound would linger until the 30s timeout.
Add auto-retry for failed outbound connections to auto-connect peers:
- New RetryState struct and node/retry.rs module
- Exponential backoff (default 5s base, max 5 attempts)
- Config: node.max_retries, node.base_retry_interval_secs
- check_timeouts() schedules retries, rx loop processes them
- promote_connection() clears retry state on success
- Remove unused PeerConnection retry fields (state now at Node level)
Move cleanup_stale_connection() logging to callers for context-appropriate
messages.
289 tests pass, clean build.
Johnathan Corgan
KieranandJohnathan Corgan