3 Commits

Include renames

Author	SHA1	Message	Date
Johnathan Corgan	94c0e19951	Add flap dampening to parent selection ... Track parent switch frequency in a sliding window. When switches exceed a configurable threshold (default 4 in 60s), impose an extended hold-down period (default 120s) that prevents non-mandatory parent changes. Mandatory switches (parent loss, root change, shouldn't-be-root) bypass dampening. The flap counter resets when the window expires naturally. Implements TASK-2026-0030 / IDEA-0013.	2026-02-23 20:00:58 +00:00
Johnathan Corgan	0d93a19e07	Implement cost-based parent selection with periodic re-evaluation ... Cost-based parent selection: - Replace depth-only parent selection with effective_depth = depth + link_cost - link_cost computed from locally measured MMP metrics: etx * (1.0 + srtt_ms / 100.0) - Prevents bottleneck subtrees in heterogeneous networks where a LoRa link at depth 1 would otherwise always beat fiber at depth 2 - Configurable hysteresis (default 0.2) prevents marginal parent switches - Configurable hold-down timer (default 30s) suppresses re-evaluation after parent switch - Mandatory switches (parent lost, root change) bypass both safeguards - Link costs passed as HashMap parameter to keep TreeState pure Periodic re-evaluation: - evaluate_parent() was only called on TreeAnnounce receipt or parent loss; after tree stabilization, link degradation went undetected - Added timer-based re-evaluation (reeval_interval_secs, default 60s) that calls evaluate_parent() from the tick handler with current MMP link costs - Respects existing hold-down and hysteresis safeguards - Short-circuits when disabled or <2 peers Design documentation: - Update 7 design docs to reflect cost-based parent selection - Replace depth-only algorithm descriptions with effective_depth model - Replace rejected cumulative path cost spec with local-only design rationale - Rewrite Example 2 (heterogeneous links) for local-only cost model - Update config docs: parent_switch_threshold replaced by parent_hysteresis, hold_down_secs, reeval_interval_secs Chaos simulation enhancements: - fips_overrides with deep merge for per-scenario FIPS config customization - Explicit topology algorithm for deterministic test graphs - Control socket querying via fipsctl for tree/MMP snapshot collection - Edge existence validation in netem manager - Per-link netem policy overrides - 9 new chaos scenarios covering cost avoidance, depth-vs-cost tradeoffs, stability, mixed topologies, periodic re-evaluation, and bottleneck parent 12 new unit tests, 667 total passing, clippy clean.	2026-02-23 17:15:20 +00:00
Johnathan Corgan	b8a1f322c2	Module reorganization and clippy cleanup ... Move single-consumer modules into node/: - rate_limit.rs, wire.rs, dns.rs — exclusively used by node subsystem - Reduces top-level lib.rs from 16 to 13 modules Split large files into focused subdirectories: - noise.rs (1475 lines) → noise/{mod, handshake, session, replay, tests}.rs - tree.rs (1479 lines) → tree/{mod, coordinate, declaration, state, tests}.rs - bloom.rs (849 lines) → bloom/{mod, filter, state, tests}.rs - All public APIs re-exported from mod.rs, no external import changes Remove unused rate_limit defaults: - HANDSHAKE_TIMEOUT_SECS, MAX_PENDING_INBOUND constants - Default constructor eliminated in favor of with_params() taking config values Fix all clippy warnings across codebase: - Remove .clone() on Copy types, collapse nested ifs, replace match-return-None with ?, remove/gate unused code, fix loop indexing, remove unnecessary casts - Box large PeerSlot enum variants to reduce size disparity - cargo clippy --all-targets now reports zero warnings	2026-02-15 15:07:42 +00:00