Cache architecture: identity fix, cache merge, parent-change flush

mirror of https://github.com/jmcorgan/fips.git synced 2026-07-30 19:46:15 +00:00

Identity cache: remove TTL-based expiry (60s TTL broke active sessions
after expiry since handle_tun_outbound checks identity_cache before
session table). Replace with LRU-only eviction bounded by configurable
identity_size (default 10K). Lookup now touches timestamp for LRU
freshness.

Cache merge: unify coord_cache and route_cache into single coordinate
cache. Both stored NodeAddr→TreeCoordinate; the layer distinction was
conceptual, not functional. Discovery-sourced entries now get the same
TTL+refresh treatment as session-sourced entries. Simplifies
find_next_hop() to single cache lookup.

Parent-change flush: clear coord_cache after recompute_coords() in both
parent-switch paths of handle_tree_announce(). Stale coordinates after
tree reconvergence cause dead-end routing that's more expensive than
re-discovery.

Tested: 493 unit tests passed, clippy clean, Docker mesh 20/20,
Docker chain 6/6.

This commit is contained in:

Johnathan Corgan

2026-02-16 22:56:34 +00:00

parent 852f561fa0

commit f374370e5c

11 changed files with 108 additions and 479 deletions

									
										src/lib.rs
									
		+1
		-1
	
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				@@ -48,7 +48,7 @@ pub use protocol::{

				};

				// Re-export cache types

				pub use cache::{CacheEntry, CacheError, CacheStats, CachedCoords, CoordCache, RouteCache};

				pub use cache::{CacheEntry, CacheError, CacheStats, CoordCache};

				// Re-export peer types

				pub use peer::{