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efitenandClaude Opus 5
a059299588
## Summary
Adds per-node hop-count statistics so repeater operators can choose
`flood.max`, `flood.max.unscoped` and `flood.max.advert` from what their
node actually sees.
- New endpoint `GET /api/nodes/{pubkey}/hop_analytics?days=N`
(`cmd/server/routes.go:299`, `cmd/server/node_hop_analytics.go:312`),
separate from `/analytics` as requested in the issue.
- New card "Hop Count at This Node" on the node analytics page
(`public/node-hop-analytics.js`, wired at
`public/node-analytics.js:130,174`): histogram of hop counts with a box
plot on the same x axis, filters `flood.max` (default),
`flood.max.advert`, `flood.max.unscoped`, driven by the existing range
picker.
- The existing "Hop Distribution" chart is unchanged: it shows path
length at the observer, a different quantity.
- No `direct` tag, although the issue lists one: for DIRECT packets the
path is the remaining route and no flood limit applies, so there is no
hop count to report.
## Hop count definition (firmware 0679dbef)
- `src/helpers/RoutingPolicy.h:15-21`: limits compare
`getPathHashCount()`; `.unscoped` applies to route type FLOOD, `.advert`
to adverts.
- `src/Mesh.cpp:344-350`: `routeRecvPacket` checks with n hashes in the
path, then writes its own hash at index n. So hops = the node's
zero-based index in the path, no +1.
- `src/Mesh.cpp:265-285`: a node forwards a flood once;
`src/Mesh.cpp:651,680`: an originator never forwards its own flood.
- DIRECT packets are excluded: their path is the remaining route
(`src/Mesh.cpp:78-103,334-341`).
Response: `{timeRange, packets: [{hash, timestamp, hops, tags}],
ambiguous}`. Tags: `flood`, `scoped` or `unscoped`, `advert`. Documented
in `docs/api-spec.md:679` and `cmd/server/openapi.go:90`.
## Attribution
`cmd/server/node_hop_analytics.go:198-309`. The result depends only on
the observed paths, the prefix map and the neighbor graph, so it is the
same after a restart as after live ingest.
- Every observation of every flood packet in the window is read.
`byNode` holds the server resolver's pick at ingest and other picks
after a cold load; `byPathHop` indexes only each packet's longest path,
which for a busy relay often runs through another branch of the flood.
- A packet counts when the node's prefix sits at exactly one index
across its observations, and either the node is the only relay candidate
for that prefix (`prefixMap.relayCandidates`,
`cmd/server/store.go:6795`), or the hop resolves to the node under the
ingestor's strict rule (`cmd/ingestor/path_resolver.go:143-214`) in at
least one observation and to another node in none. Strict rule: earlier
hops identified without a tiebreak, exactly one candidate adjacent in
`neighbor_edges` to the previous hop (the originator for hop 0 of an
advert), nodes already on the path excluded.
- The server resolver's tiebreaks (affinity, GPS distance, advert count,
pubkey order) are not used.
- Everything else with the node's prefix goes to `ambiguous`. In
practice that is most packets with a colliding 1-byte path hash.
On a read-only 7-day dump of a 1,669-node mesh DB, for one busy
repeater: 23,081 packets attributed, 11,437 ambiguous. Taking candidates
from `byPathHop` instead gave 9,995 attributed, with the histogram mode
moved from 2 to 3-5 hops.
## Performance
Scans `s.packets` under the read lock, no SQL per packet. Per
observation: one substring test for the node's first prefix byte; the
hop scan only for observations containing it; the strict walk only for
colliding prefixes, with per-request caches for candidates and
adjacency. `BenchmarkNodeHopPackets` models one 7-day request at that
scale (73,782 flood packets, 1,430,280 observations): 44-87 ms/op, 13.4
MB, 40 allocs on a throttling laptop.
Response size for that repeater over 7 days: about 23k entries, 2.3 MB
JSON, 375 KB gzipped. `hash` and `timestamp` are 61% of the raw and 91%
of the gzipped bytes; they stay because the issue asks for them so a
client can join entries to packets and bin by time.
## Tests
- Go: `cmd/server/node_hop_analytics_test.go`: 12 unit tests, a
live-ingest test through `IngestNewFromDB` (a colliding prefix without
independent attribution goes to `ambiguous`, not to the node the
resolver picked), live ingest versus cold load of the same DB, route
test, benchmark. 15 mutations of the attribution logic each fail a test.
- JS: `test-node-hop-analytics.js` (filters, histogram, quartiles and
whiskers with a fixture that separates 1.5 IQR from 3 IQR, render),
registered in `test-all.sh` and `.github/workflows/deploy.yml`.
- `gofmt`, `go vet ./...`, `go test ./...` in `cmd/server`,
`scripts/check-css-vars.js` pass.
## Staging validation
Build `c646310f` (this PR's review follow-up together with the other
open follow-ups), after a container restart and full load, on a busy
Belgian repeater:
- `hop_analytics?days=7`: 23,302 packets, 11,548 ambiguous, median 4,
adverts never above hop 7 (matching the firmware default
`flood_max_advert = 8`, `examples/simple_repeater/MyMesh.cpp:922`), 1.2
s. The first version reported 23,035 packets and 86 ambiguous in 534 ms,
because it trusted the resolver's pick for colliding prefixes.
- The card rendered on the first version with no console errors; the
rework does not touch the frontend beyond a test fixture.
## Not verified
- Response time and lock hold for 30 days on the busiest node on a
14-day store.
- Server relay candidates exclude companions and listeners while the
ingestor's prefix index does not, so a few strict attributions can
differ from the ingestor's persisted `resolved_path`.
- Identical numbers across a second container restart were shown in a Go
test, not repeated on staging.
- Dark theme, phone width, and switching the range picker in the
browser.
- Filter state is not reflected in the URL hash (the range picker is not
either).
Fixes #1812
---------
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
CoreScope
High-performance mesh network analyzer powered by Go. Sub-millisecond packet queries, ~300 MB memory for 56K+ packets, real-time WebSocket broadcast, full channel decryption.
Self-hosted, open-source MeshCore packet analyzer. Collects MeshCore packets via MQTT, decodes them in real time, and presents a full web UI with live packet feed, interactive maps, channel chat, packet tracing, and per-node analytics.
⚡ Performance
The Go backend serves all 40+ API endpoints from an in-memory packet store with 5 indexes (hash, txID, obsID, observer, node). SQLite is for persistence only — reads never touch disk.
| Metric | Value |
|---|---|
| Packet queries | < 1 ms (in-memory) |
| All API endpoints | < 100 ms |
| Memory (56K packets) | ~300 MB (vs 1.3 GB on Node.js) |
| WebSocket broadcast | Real-time to all connected browsers |
| Channel decryption | AES-128-ECB with rainbow table |
| GOMEMLIMIT (memory-constrained hosts) | set to ≥1.5× working set (e.g. 1536 MiB on a 2 GB Pi for a ~1 GB store). Lower values trigger a GC death-spiral. Configure via the GOMEMLIMIT env var or runtime.maxMemoryMB in config.json; env wins. Applies to both server and ingestor. See #1010. |
See PERFORMANCE.md for full benchmarks.
✨ Features
📡 Live Trace Map
Real-time animated map with packet route visualization, VCR-style playback controls, and a retro LCD clock. Replay the last 24 hours of mesh activity, scrub through the timeline, or watch packets flow live at up to 4× speed.
📦 Packet Feed
Filterable real-time packet stream with byte-level breakdown, Excel-like resizable columns, and a detail pane. Toggle "My Nodes" to focus on your mesh.
🗺️ Network Overview
At-a-glance mesh stats — node counts, packet volume, observer coverage.
📊 Node Analytics
Per-node deep dive with interactive charts: activity timeline, packet type breakdown, SNR distribution, hop count analysis, peer network graph, and hourly heatmap.
💬 Channel Chat
Decoded group messages with sender names, @mentions, timestamps — like reading a Discord channel for your mesh.
📱 Mobile Ready
Full experience on your phone — proper touch controls, iOS safe area support, and a compact VCR bar.
And More
- 11 Analytics Tabs — RF, topology, channels, hash stats, distance, route patterns, and more
- Node Directory — searchable list with role tabs, detail panel, QR codes, advert timeline
- Packet Tracing — follow individual packets across observers with SNR/RSSI timeline
- Observer Status — health monitoring, packet counts, uptime, per-observer analytics
- Hash Collision Matrix — detect address collisions across the mesh
- Channel Key Auto-Derivation — hashtag channels (
#channel) keys derived via SHA256 - Multi-Broker MQTT — connect to multiple brokers with per-source IATA filtering
- Dark / Light Mode — auto-detects system preference, map tiles swap too
- Theme Customizer — design your theme in-browser, export as
theme.json - Global Search — search packets, nodes, and channels (Ctrl+K)
- Shareable URLs — deep links to packets, channels, and observer detail pages
- Protobuf API Contract — typed API definitions in
proto/ - Accessible — ARIA patterns, keyboard navigation, screen reader support
Quick Start
Pre-built Image (Recommended)
No build step required — just run:
docker run -d --name corescope \
--restart=unless-stopped \
-p 80:80 -p 1883:1883 \
-v /your/data:/app/data \
ghcr.io/kpa-clawbot/corescope:latest
Open http://localhost — done. No config file needed; CoreScope starts with sensible defaults.
For HTTPS with a custom domain, add -p 443:443 and mount your Caddyfile:
docker run -d --name corescope \
--restart=unless-stopped \
-p 80:80 -p 443:443 -p 1883:1883 \
-v /your/data:/app/data \
-v /your/Caddyfile:/etc/caddy/Caddyfile:ro \
-v /your/caddy-data:/data/caddy \
ghcr.io/kpa-clawbot/corescope:latest
Disable built-in services with -e DISABLE_MOSQUITTO=true or -e DISABLE_CADDY=true, or drop a .env file in your data volume. See docs/deployment.md for the full reference.
Build from Source
git clone https://github.com/Kpa-clawbot/CoreScope.git
cd CoreScope
./manage.sh setup
The setup wizard walks you through config, domain, HTTPS, build, and run.
./manage.sh status # Health check + packet/node counts
./manage.sh logs # Follow logs
./manage.sh backup # Backup database
./manage.sh update # Pull latest + rebuild + restart
./manage.sh mqtt-test # Check if observer data is flowing
./manage.sh help # All commands
Configure
Copy config.example.json to config.json and edit:
{
"port": 3000,
"mqtt": {
"broker": "mqtt://localhost:1883",
"topic": "meshcore/+/+/packets"
},
"mqttSources": [
{
"name": "remote-feed",
"broker": "mqtts://remote-broker:8883",
"topics": ["meshcore/+/+/packets"],
"username": "user",
"password": "pass",
"iataFilter": ["SJC", "SFO", "OAK"]
}
],
"channelKeys": {
"public": "8b3387e9c5cdea6ac9e5edbaa115cd72"
},
"defaultRegion": "SJC"
}
| Field | Description |
|---|---|
port |
HTTP server port (default: 3000) |
mqtt.broker |
Local MQTT broker URL ("" to disable) |
mqttSources |
External MQTT broker connections (optional) |
channelKeys |
Channel decryption keys (hex). Hashtag channels auto-derived via SHA256 |
defaultRegion |
Default IATA region code for the UI |
dbPath |
SQLite database path (default: data/meshcore.db) |
Environment Variables
| Variable | Description |
|---|---|
PORT |
Override config port |
DB_PATH |
Override SQLite database path |
Architecture
┌─────────────────────────────────────────────┐
│ Docker Container │
│ │
Observer → USB → │ Mosquitto ──→ Go Ingestor ──→ SQLite DB │
meshcoretomqtt → MQTT ──→│ │ │
│ Go HTTP Server ──→ WebSocket │
│ │ │ │
│ Caddy (HTTPS) ←───────┘ │
└────────────────────┼────────────────────────┘
│
Browser
Two-process model: The Go ingestor handles MQTT ingestion and packet decoding. The Go HTTP server loads all packets into an in-memory store on startup (5 indexes for fast lookups) and serves the REST API + WebSocket broadcast. Both are managed by supervisord inside a single container with Caddy for HTTPS and Mosquitto for local MQTT.
MQTT Setup
- Flash an observer node with
MESH_PACKET_LOGGING=1build flag - Connect via USB to a host running meshcoretomqtt
- Configure meshcoretomqtt with your IATA region code and MQTT broker address
- Packets appear on topic
meshcore/{IATA}/{PUBKEY}/packets
Or POST raw hex packets to POST /api/packets for manual injection.
Project Structure
corescope/
├── cmd/
│ ├── server/ # Go HTTP server + WebSocket + REST API
│ │ ├── main.go # Entry point
│ │ ├── routes.go # 40+ API endpoint handlers
│ │ ├── store.go # In-memory packet store (5 indexes)
│ │ ├── db.go # SQLite persistence layer
│ │ ├── decoder.go # MeshCore packet decoder
│ │ ├── websocket.go # WebSocket broadcast
│ │ └── *_test.go # 327 test functions
│ └── ingestor/ # Go MQTT ingestor
│ ├── main.go # MQTT subscription + packet processing
│ ├── decoder.go # Packet decoder (shared logic)
│ ├── db.go # SQLite write path
│ └── *_test.go # 53 test functions
├── proto/ # Protobuf API definitions
├── public/ # Vanilla JS frontend (no build step)
│ ├── index.html # SPA shell
│ ├── app.js # Router, WebSocket, utilities
│ ├── packets.js # Packet feed + hex breakdown
│ ├── map.js # Leaflet map + route visualization
│ ├── live.js # Live trace + VCR playback
│ ├── channels.js # Channel chat
│ ├── nodes.js # Node directory + detail views
│ ├── analytics.js # 11-tab analytics dashboard
│ └── style.css # CSS variable theming (light/dark)
├── docker/
│ ├── supervisord-go.conf # Process manager (server + ingestor)
│ ├── mosquitto.conf # MQTT broker config
│ ├── Caddyfile # Reverse proxy + HTTPS
│ └── entrypoint-go.sh # Container entrypoint
├── Dockerfile # Multi-stage Go build + Alpine runtime
├── config.example.json # Example configuration
├── test-*.js # Node.js test suite (frontend + legacy)
└── tools/ # Generators, E2E tests, utilities
For Developers
Test Suite
380 Go tests covering the backend, plus 150+ Node.js tests for the frontend and legacy logic, plus 49 Playwright E2E tests for browser validation.
# Go backend tests
cd cmd/server && go test ./... -v
cd cmd/ingestor && go test ./... -v
# Node.js frontend + integration tests
npm test
# Playwright E2E (requires running server on localhost:3000)
node test-e2e-playwright.js
Generate Test Data
node tools/generate-packets.js --api --count 200
Migrating from Node.js
If you're running an existing Node.js deployment, see docs/go-migration.md for a step-by-step guide. The Go engine reads the same SQLite database and config.json — no data migration needed.
Contributing
Contributions welcome. Please read AGENTS.md for coding conventions, testing requirements, and engineering principles before submitting a PR.
Live instance: analyzer.00id.net — all API endpoints are public, no auth required.
API Documentation: CoreScope auto-generates an OpenAPI 3.0 spec. Browse the interactive Swagger UI at /api/docs or fetch the machine-readable spec at /api/spec.
License
GPL-3.0-or-later