mirror of https://github.com/jmcorgan/fips.git synced 2026-08-09 08:14:42 +00:00

T

Johnathan Corgan 7bc5b21c3a Fix cross-connection session alignment for simultaneous auto-connect

When both nodes simultaneously initiate connections, each promotes its
inbound handshake first, leaving both sides with mismatched Noise sessions
and session indices. Resolve this in handle_msg2 using the existing
tie-breaker (smaller node_addr's outbound wins):

- Winner (smaller node): swaps ActivePeer to outbound session + indices
  via new replace_session() method
- Loser (larger node): keeps inbound session and original their_index
  (already references winner's outbound our_index from msg1)

Key insight: the loser must NOT update their_index from msg2, because the
msg2 sender_idx carries the winner's inbound index which becomes stale
after the winner swaps.

Defer outbound connection cleanup from promote_connection() to handle_msg2()
so outbound session state is available for the swap.

Verified with live two-node test over UDP in network namespaces: both nodes
connect, exchange TreeAnnounce, and converge to spanning tree within ~2s.

2026-02-11 01:41:21 +00:00

docs

Implement spanning tree announcement send/receive protocol

2026-02-10 23:35:09 +00:00

src

Fix cross-connection session alignment for simultaneous auto-connect

2026-02-11 01:41:21 +00:00

.gitignore

Add identity module with NodeId, FipsAddress, and auth challenge

2026-01-24 23:57:48 +00:00

Cargo.lock

Session 46: Noise IK peer authentication implementation