Johnathan Corgan
77ac8c822e
Add fipstop TUI monitoring tool with smoothed metrics and quality indices
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fipstop: ratatui-based TUI for real-time monitoring of a running FIPS daemon.
Tabs and navigation:
- 8 navigable tabs: Node, Peers, Transports, Sessions, Tree, Filters,
Performance, Routing
- Tab/BackTab navigation with group separators in tab bar
- Table views with selectable rows, detail drill-down panels, and scrollbars
Node tab:
- Runtime info: pid, exe path, uptime, control socket path, TUN adapter name
- Identity: npub, node_addr, ipv6 address
- State summary with peer/session/link/transport/connection counts
- TUN IPv6 traffic and forwarded transit traffic counters
Peers tab:
- Table with Name, Address, Conn, Depth, SRTT, Loss, LQI, Pkts Tx/Rx
- Detail panel: identity, connection info, transport cross-reference,
tree/bloom state, link stats, MMP metrics with LQI
Sessions tab:
- Table with Name, Remote Addr, State, Role, SRTT, Loss, SQI, Path MTU,
Last Activity
- Detail panel: identity, session info, traffic stats, MMP metrics with SQI
Transports tab:
- Hierarchical tree view: expandable transport parents with nested links
(▼/▶ indicators, ├─/└─ tree chars, Space/Arrow to expand/collapse)
- Transport detail: type-specific stats (UDP/TCP/Ethernet)
- Link detail: peer cross-reference with MMP metrics and LQI
Performance tab:
- Link-layer MMP: SRTT, loss, ETX, LQI, goodput per peer
- Session-layer MMP: SRTT, loss, ETX, SQI, path MTU per session
- Trend indicators (rising/falling/stable) with context-aware coloring
Routing tab:
- Routing state: cache sizes, pending lookups, recent requests
- Coordinate cache: entries, fill ratio, TTL, expiry, avg age
- Statistics: forwarding, discovery request/response, error signal counters
Tree tab:
- Spanning tree position with 16 announce stats (inbound/outbound/cumulative)
Filters tab:
- Bloom filter announce stats, per-peer fill ratio and estimated node count
MMP metrics enhancements:
- Add etx_trend DualEwma for smoothed ETX tracking
- Add smoothed_loss() and smoothed_etx() accessors (long-term EWMA)
- LQI (Link Quality Index) = smoothed_etx * (1 + srtt_ms / 100)
- SQI (Session Quality Index) = same formula for session layer
- All loss/ETX displays prefer smoothed values with raw fallback
Control socket:
- Add smoothed_loss, smoothed_etx, lqi/sqi to show_peers, show_sessions,
and show_mmp JSON responses
- Rename fips_address to ipv6_addr in show_status and show_peers
- Add tun_name and control_socket to show_status
- FHS-compliant 3-tier default path: $XDG_RUNTIME_DIR, /run/fips, /tmp
Node extensions:
- Add started_at/uptime() to Node
- Add tun_name() accessor
Docker sidecar updates:
- TCP transport support via FIPS_PEER_TRANSPORT env var
- Build scripts include fipstop binary
2026-03-01 16:33:33 +00:00
Johnathan Corgan
71a5c68fa9
Implement comprehensive node and transport statistics
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Add 71 new counters (84 values) across three categories:
Node statistics (NodeStats, plain u64 — single handler context):
- Forwarding: 9 counters x (packets + bytes) = 18 values. Covers
received, decode_error, ttl_exhausted, delivered, forwarded,
drop_no_route, drop_mtu_exceeded, drop_send_error, originated.
- Discovery: 17 counters (packets only). Request path: received,
decode_error, duplicate, already_visited, target_is_us, forwarded,
ttl_exhausted, initiated, deduplicated. Response path: received,
decode_error, forwarded, identity_miss, proof_failed, accepted,
timed_out.
- Error signals: 3 counters — coords_required, path_broken,
mtu_exceeded.
- Spanning tree: 16 counters. Inbound announce handling (received
through accepted, parent switch, loop detection, ancestry change),
outbound (sent, rate limited, send failed), cumulative events
(parent switches/losses, flap dampening).
- Bloom filter: 10 counters. Inbound (received through accepted),
outbound (sent, debounce suppressed, send failed).
Transport statistics (AtomicU64 + Arc — shared with spawned tasks):
- UDP (6 counters, 8 values): packets/bytes sent/recv, send_errors,
recv_errors, mtu_exceeded, kernel_drops (stub for SO_MEMINFO).
- TCP (10 counters, 12 values): packets/bytes sent/recv, send_errors,
recv_errors, mtu_exceeded, plus connection lifecycle counters
(established, accepted, rejected, timeouts, refused).
Control socket integration:
- show_routing: forwarding, discovery, error signal stats
- show_tree: spanning tree stats + per-peer bloom metrics
(estimated_count, set_bits, fill_ratio) and coordinate paths
- show_bloom: bloom filter stats + per-peer snapshots
- show_transports: per-transport stats snapshots
Also refactor UDP transport from flat files (udp.rs + udp_stats.rs)
into directory module (udp/mod.rs + udp/stats.rs) matching TCP
structure, and fix pre-existing clippy warnings in tree/tests.rs.
2026-02-28 18:23:04 +00:00
Johnathan Corgan
9668807ca4
Add Docker sidecar deployment for FIPS
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Tailscale-style sidecar pattern: a FIPS container provides mesh
networking, and a companion app container shares its network namespace
via network_mode: service:fips.
Security model:
- iptables enforces strict isolation — the app container can only
communicate over the FIPS mesh (fd::/8 via fips0)
- No IPv4 access: eth0 restricted to FIPS UDP transport (port 2121)
- No IPv6 on eth0: ip6tables blocks all eth0 IPv6 traffic
- Only fips0 and loopback are reachable from the app container
The sidecar accepts peer configuration via environment variables
(FIPS_NSEC, FIPS_PEER_NPUB, FIPS_PEER_ADDR), so it can be pointed
at any FIPS node without config file generation.
Files:
- testing/sidecar/: Dockerfile, Dockerfile.app, docker-compose.yml,
entrypoint.sh, .env, resolv.conf, scripts/build.sh
- testing/sidecar/README.md: security model, quick-start, architecture,
DNS resolution, troubleshooting, production considerations
- testing/sidecar/scripts/test-sidecar.sh: 3-node chain integration
test verifying link establishment, multi-hop connectivity, and
network isolation on each app container
- .github/workflows/ci.yml: sidecar integration test matrix entry
2026-02-27 03:02:14 +00:00
Johnathan Corgan