id: 5df30dea77a146e6914df8b2bf7ded70
parent_id: 9a5607b540c842bab336a8b16639d6c1
item_type: 1
item_id: 6c0dcb2a567348fd9796f50c790082e4
item_updated_time: 1780489411112
title_diff: "[]"
body_diff: "[{\"diffs\":[[0,\"  │ \"],[-1,\"Always runs       \"],[1,\"Registration-based\"],[0,\"  │ \"]],\"start1\":4031,\"start2\":4031,\"length1\":26,\"length2\":26},{\"diffs\":[[0,\"       │\"],[1,\" BINDS\"],[0,\" :9996  \"]],\"start1\":4188,\"start2\":4188,\"length1\":16,\"length2\":22},{\"diffs\":[[0,\"        \"],[-1,\"      │\"],[1,\"│ SENDS to\"],[0,\" :10101 \"]],\"start1\":4211,\"start2\":4211,\"length1\":23,\"length2\":26},{\"diffs\":[[0,\"    \"],[-1,\"         │ :5005    \"],[1,\"│ SENDS to  │ │\\\n│           │ (listener)            │ (unbound socket)         │ :5005     │ │\\\n│           │                       │                          │ (unbound) │\"],[0,\" │\\\n└\"]],\"start1\":4242,\"start2\":4242,\"length1\":28,\"length2\":179},{\"diffs\":[[0,\"─┐  \"],[-1,\"                        \"],[1,\"(registration protocol)\"],[0,\"    \"]],\"start1\":4970,\"start2\":4970,\"length1\":32,\"length2\":31},{\"diffs\":[[0,\"### \"],[-1,\"Source Comparison\\\n\\\n| Aspect | Port 9996 (built-in) | Port 10101 (Telemetry Tool) | Port 5005 (our Lua plugin) |\\\n|---|---|---|---|\\\n| **Origin** | AC engine | Python plugin (IkoRein) | CSP Lua app (ours) |\\\n| **Status** | ✅ Always runs | ✅ **ENABLED** in python.ini | 🔧 Fixed, needs AC restart\"],[1,\"⚠️ Port 9996 (KSUDP) — Registration Protocol (NOT Send-Only)\\\n\\\n**This is NOT a simple fire-and-forget UDP feed.** AC's built-in `RemoteTelemetryUDP` uses a registration/handshake protocol:\\\n\\\n```\\\n┌─────────────────────┐                  ┌──────────────────────┐\\\n│   Assetto Corsa      │                  │   External Tool      │\\\n│                      │                  │   (rusty-telemetry)  │\\\n│   BINDS to :9996     │                  │   BINDS to :12000    │\\\n│   (listener socket)  │                  │   (receiver socket)  │\\\n│                      │                  │                      │\\\n│                      │  ◄── register ── │  sends handshake     │\\\n│                      │     packet       │  to :9996            │\\\n│                      │                  │                      │\\\n│                      │  ── telemetry ──►│  receives on :12000  │\\\n│                      │     data         │  from AC             │\\\n└─────────────────────┘                  └──────────────────────┘\\\n```\\\n\\\n**Evidence:**\\\n1. AC log: `RemoteTelemetryUDP :: creating socket on port 9996` → `ERROR BINDING LISTENER SOCKET` — AC explicitly calls it a **LISTENER** socket and tries to **bind** to 9996\\\n2. **No destination config exists anywhere** — no INI file sets where AC should send KSUDP data. The destination is discovered dynamically from registration packet source addresses\\\n3. This follows Kunos's standard pattern (same as the ACSP server plugin protocol in `sdk/dev/acRemoteServerUDP_Example/`)\\\n\\\n**⚠️ Port conflict**: If `rusty-telemetry` binds to `:9996` before AC starts, AC cannot bind its listener socket → `RemoteTelemetryUDP` never initializes → zero KSUDP packets. This is exactly what happened in the 2026-06-03 session.\\\n\\\n**Implementation for rusty-telemetry:**\\\n1. Do **NOT** bind to port 9996 — let AC own it\\\n2. Bind a receiver socket to a different port (e.g., `:12000` or OS-assigned ephemeral)\\\n3. Send a registration/handshake packet to `127.0.0.1:9996`\\\n4. AC reads the registration, extracts the source address, starts streaming telemetry back\\\n5. The handshake protocol details need to be reverse-engineered (check community docs, AC SDK examples, or capture traffic with AC running alone on 9996)\\\n\\\n**Alternative**: Since ports 10101 (Telemetry Tool) and 5005 (our Lua plugin) provide richer data without any registration dance, consider **dropping KSUDP** from the initial implementation and focusing on the two send-only feeds.\\\n\\\n### Source Comparison\\\n\\\n| Aspect | Port 9996 (built-in) | Port 10101 (Telemetry Tool) | Port 5005 (our Lua plugin) |\\\n|---|---|---|---|\\\n| **Origin** | AC engine | Python plugin (IkoRein) | CSP Lua app (ours) |\\\n| **Protocol** | ⚠️ Registration-based (AC binds, tool registers) | ✅ Send-only (unbound socket) | ✅ Send-only (unbound socket) |\\\n| **Status** | ❌ Port conflict with rusty-telemetry | ✅ **WORKING** — 4.55 MB captured | ❌ Script init fails (diagnosing)\"],[0,\" |\\\n|\"]],\"start1\":6172,\"start2\":6172,\"length1\":299,\"length2\":2909},{\"diffs\":[[0,\"* | \"],[-1,\"Hardcoded localhost\"],[1,\"No config file (discovered via registration)\"],[0,\" | c\"]],\"start1\":9433,\"start2\":9433,\"length1\":27,\"length2\":52},{\"diffs\":[[0,\". **\"],[-1,\"Multi-port binding**: Listen on ports 9996, \"],[1,\"Port 9996 (KSUDP) — rewrite to registration protocol**:\\\n   - Do NOT bind to 9996 — let AC own it\\\n   - Bind a receiver socket to a different port (e.g., `:12000`)\\\n   - Send registration/handshake packet to `127.0.0.1:9996`\\\n   - Receive telemetry data on the receiver socket\\\n   - Handshake protocol needs reverse-engineering (see Section 14)\\\n\\\n2. **Port 10101 & 5005 — keep current bind-and-listen pattern** (these are send-only feeds, tools bind to receive):\\\n   - Bind to `:\"],[0,\"10101\"],[-1,\",\"],[1,\"`\"],[0,\" and \"],[1,\"`:\"],[0,\"5005\"],[-1,\" simultaneously\\\n2\"],[1,\"` respectively\\\n   - `recv_from()` loop per feed\\\n\\\n3\"],[0,\". **\"]],\"start1\":10609,\"start2\":10609,\"length1\":84,\"length2\":547},{\"diffs\":[[0,\"/ dead)\\\n\"],[-1,\"3\"],[1,\"\\\n4\"],[0,\". **Data\"]],\"start1\":11411,\"start2\":11411,\"length1\":17,\"length2\":18},{\"diffs\":[[0,\"or N MB\\\n\"],[-1,\"4\"],[1,\"\\\n5\"],[0,\". **Star\"]],\"start1\":11881,\"start2\":11881,\"length1\":17,\"length2\":18},{\"diffs\":[[0,\"    \"],[-1,\"✅ List\"],[1,\"⏳ Registration (s\"],[0,\"en\"],[1,\"d\"],[0,\"ing \"],[-1,\"(20.1 pkt/s\"],[1,\"to AC\"],[0,\")\\\n  \"]],\"start1\":12114,\"start2\":12114,\"length1\":31,\"length2\":37},{\"diffs\":[[0,\"e 1.\"],[-1,\"1 — LuaSocket bug FIXED, uncommitted\"],[1,\"2 — diagnosing LuaSocket availability in CSP sandbox\"],[0,\"** |\"]],\"start1\":16391,\"start2\":16391,\"length1\":44,\"length2\":60},{\"diffs\":[[0,\"x + \"],[-1,\"icon.png — **needs commit**\"],[1,\"diagnostic logging\"],[0,\" |\\\n|\"]],\"start1\":16609,\"start2\":16609,\"length1\":35,\"length2\":26},{\"diffs\":[[0,\"dp()`\\\n4.\"],[1,\" **src/telemetry.lua**: Added `ac.log()` diagnostic checkpoints before/after `require(\\\"socket\\\")` and `socket.udp()`\\\n5.\"],[0,\" **icon.\"]],\"start1\":17114,\"start2\":17114,\"length1\":16,\"length2\":134},{\"diffs\":[[0,\"app bar\\\n\"],[1,\"- Add ac.log() diagnostic checkpoints around socket initialization\\\n\"],[0,\"```\\\n\\\n###\"]],\"start1\":17752,\"start2\":17752,\"length1\":16,\"length2\":83},{\"diffs\":[[0,\"— needs \"],[-1,\"multi-port\"],[1,\"KSUDP registration protocol\"],[0,\" + data \"]],\"start1\":18140,\"start2\":18140,\"length1\":26,\"length2\":43},{\"diffs\":[[0,\"**\\\n  - [\"],[-1,\" \"],[1,\"x\"],[0,\"] Multi-\"]],\"start1\":19839,\"start2\":19839,\"length1\":17,\"length2\":17},{\"diffs\":[[0,\"1, 5005)\"],[1,\" — **DONE but 9996 needs rewrite**\"],[0,\"\\\n  - [\"],[-1,\" \"],[1,\"x\"],[0,\"] Per-fe\"]],\"start1\":19884,\"start2\":19884,\"length1\":23,\"length2\":57},{\"diffs\":[[0,\"rs\\\n  - [\"],[-1,\" \"],[1,\"x\"],[0,\"] Data d\"]],\"start1\":19981,\"start2\":19981,\"length1\":17,\"length2\":17},{\"diffs\":[[0,\"bin,json\"],[-1,\",csv\"],[0,\"}`)\\\n  - \"]],\"start1\":20054,\"start2\":20054,\"length1\":20,\"length2\":16},{\"diffs\":[[0,\"`)\\\n  - [\"],[-1,\" \"],[1,\"x\"],[0,\"] Startu\"]],\"start1\":20063,\"start2\":20063,\"length1\":17,\"length2\":17},{\"diffs\":[[0,\" status\\\n\"],[1,\"  - [ ] **Rewrite port 9996 handler** — change from bind-and-listen to registration protocol\\\n  - [ ] Reverse-engineer KSUDP handshake packet format\\\n\"],[0,\"  - [ ] \"]],\"start1\":20120,\"start2\":20120,\"length1\":16,\"length2\":164},{\"diffs\":[[0,\"n — \"],[-1,\"FIXED, needs testing\"],[1,\"DIAGNOSING\"],[0,\"**\\\n \"]],\"start1\":20617,\"start2\":20617,\"length1\":28,\"length2\":18},{\"diffs\":[[0,\" - [\"],[-1,\" ] **Commit changes to git**\\\n  - [ ] **Test in AC** — restart AC, open app, verify UDP packets arrive on port 5005\"],[1,\"x] Add `ac.log()` diagnostic checkpoints around `require(\\\"socket\\\")` and `socket.udp()`\\\n  - [ ] **Test in AC** — restart AC, open app, check CSP log for diagnostic messages\\\n  - [ ] **If LuaSocket unavailable**: investigate CSP's native networking API (`ac.connectUDP()`, `web` module, etc.)\\\n  - [ ] **Commit changes to git**\"],[0,\"\\\n  -\"]],\"start1\":20770,\"start2\":20770,\"length1\":122,\"length2\":331},{\"diffs\":[[0,\"API)\"],[-1,\"\\\n  - [ ] **Add debug logging**: `ac.log()` and `ac.debug()` calls\"],[0,\"\\\n\\\n- \"]],\"start1\":21189,\"start2\":21189,\"length1\":73,\"length2\":8},{\"diffs\":[[0,\"l — \"],[-1,\"ENABLED\"],[1,\"WORKING\"],[0,\"**\\\n \"]],\"start1\":21223,\"start2\":21223,\"length1\":15,\"length2\":15},{\"diffs\":[[0,\" - [\"],[-1,\" \"],[1,\"x\"],[0,\"] **\"],[-1,\"Test in AC** — restart AC, verify packets arrive\"],[1,\"Verified** — 4.55 MB of valid binary data captured\"],[0,\" on \"]],\"start1\":21303,\"start2\":21303,\"length1\":61,\"length2\":63},{\"diffs\":[[0,\"all cars\"],[1,\" (parse the binary dump)\"],[0,\"\\\n\\\n- **1.\"]],\"start1\":21431,\"start2\":21431,\"length1\":16,\"length2\":40},{\"diffs\":[[0,\"og (\"],[-1,\"binary/UTF-16\"],[1,\"check impl. field\"],[0,\")\\\n└─\"]],\"start1\":22974,\"start2\":22974,\"length1\":21,\"length2\":25},{\"diffs\":[[0,\") — \"],[-1,\"Always Running\\\n- Created by AC engine\"],[1,\"Registration Protocol\\\n- AC binds to port 9996 as a **LISTENER**\"],[0,\" at \"]],\"start1\":23265,\"start2\":23265,\"length1\":45,\"length2\":71},{\"diffs\":[[0,\"`\\\n- \"],[-1,\"No configuration needed, no plugin required\\\n- Sends to 127.0.0.1:9996 only\"],[1,\"External tools must **register** by sending a handshake packet to `:9996`\\\n- AC then streams telemetry data back to the registered address\\\n- No configuration file controls the destination — it's discovered dynamically\\\n- ⚠️ If another process binds to 9996 first, AC fails: `ERROR BINDING LISTENER SOCKET`\\\n- The handshake packet format needs reverse-engineering\"],[0,\"\\\n\\\n##\"]],\"start1\":23396,\"start2\":23396,\"length1\":82,\"length2\":367},{\"diffs\":[[0,\") — \"],[-1,\"Just Enabled\"],[1,\"WORKING ✅\"],[0,\"\\\n- C\"]],\"start1\":23798,\"start2\":23798,\"length1\":20,\"length2\":17},{\"diffs\":[[0,\")\\\n- \"],[-1,\"Requires AC restart to activate\"],[1,\"Send-only: unbound socket, no port conflict possible\\\n- Confirmed working: 4.55 MB captured in 2026-06-03 session\"],[0,\"\\\n\\\n##\"]],\"start1\":23989,\"start2\":23989,\"length1\":39,\"length2\":120},{\"diffs\":[[0,\") — \"],[-1,\"Bug Fixed, Needs AC Restart\"],[1,\"DIAGNOSING ❌\"],[0,\"\\\n- C\"]],\"start1\":24136,\"start2\":24136,\"length1\":35,\"length2\":20},{\"diffs\":[[0,\".udp()`\\\n\"],[1,\"- Diagnostic logging added: `ac.log()` checkpoints before/after socket init\\\n- CSP log shows `impl.: 0000000000000000` (null implementation) — script may have failed to init\\\n- Possible causes: LuaSocket unavailable in CSP sandbox, or app not activated in-game (LAZY=FULL)\\\n\"],[0,\"- Deploy\"]],\"start1\":24276,\"start2\":24276,\"length1\":16,\"length2\":287},{\"diffs\":[[0,\"--\\\n\\\n\"],[-1,\"*Last updated: 2026-06-03 — Phase 1 restructured for triple-feed approach*\\\n*LuaSocket bug fixed, Python Telemetry Tool enabled, extension copy deleted*\\\n*Next: restart AC → verify all three feeds → upgrade Rust listener\"],[1,\"## 14. Session Diagnostics — 2026-06-03\\\n\\\n### Session Data Captured\\\n\\\n| Port | Feed | File | Size | Status |\\\n|------|------|------|------|--------|\\\n| 9996 | KSUDP | `feed_9996_ksudp.bin` | 0 bytes | ❌ AC failed to bind (rusty-telemetry had the port) |\\\n| 10101 | Telemetry Tool | `feed_10101_telemetry_tool.bin` | 4.55 MB | ✅ Valid binary telemetry |\\\n| 5005 | AC Lua Plugin | `feed_5005_ac_plugin.json` | 0 bytes | ❌ Script failed to init |\\\n\\\n### Key Findings\\\n\\\n**Port 9996 — Port conflict:**\\\n- AC log: `RemoteTelemetryUDP :: creating socket on port 9996` → `ERROR BINDING LISTENER SOCKET`\\\n- Cause: `rusty-telemetry` bound to `:9996` before AC started → AC couldn't bind its listener socket\\\n- Resolution: rusty-telemetry must NOT bind to 9996; must use registration protocol instead (see Section 4)\\\n\\\n**Port 5005 — Script initialization failure:**\\\n- CSP log: `App is loaded: '...apps\\\\lua\\\\ac-telemetry-plugin', impl.: 0000000000000000, windows: 1`\\\n- `impl.: null` means the Lua script failed during initialization (module load time)\\\n- The `require(\\\"socket\\\")` call at module level is the likely crash point — if LuaSocket is unavailable in CSP's sandbox, the entire module fails to load\\\n- Diagnostic `ac.log()` checkpoints have been added to `src/telemetry.lua` to confirm on next AC restart\\\n- Also possible: app was never activated in the in-game app launcher (LAZY=FULL defers loading)\\\n\\\n**Port 10101 — Working correctly:**\\\n- `py_log.txt` confirms: \\\"Telemetry Tool plugin 1.3 — Sending data to 127.0.0.1:10101\\\"\\\n- Binary data decoded successfully: packet type 22, driver \\\"Jan-Peter von Hunnius\\\", car \\\"abarth500\\\"\\\n- Telemetry Tool Python plugin creates an unbound socket → no port conflict with rusty-telemetry\\\n\\\n### Startup Order for Next Session\\\n\\\n1. **Start AC first** — let it bind port 9996\\\n2. **Start rusty-telemetry after AC loads** — binds to 10101 and 5005 only\\\n3. For KSUDP: rusty-telemetry sends registration to AC's port 9996 (once handshake protocol is implemented)\\\n4. For port 5005: activate the \\\"AC Telemetry\\\" app in the in-game app launcher\\\n5. Check CSP logs for `ac.log()` diagnostic messages from the Lua plugin\\\n\\\n---\\\n\\\n*Last updated: 2026-06-03 — Session diagnostics, KSUDP registration protocol discovery, Lua plugin diagnosis*\\\n*Port 10101 confirmed working. Port 9996 needs registration protocol in rusty-telemetry. Port 5005 needs LuaSocket availability confirmed.*\\\n*Next: restart AC → check Lua diagnostic logs → implement KSUDP registration in rusty-telemetry\"],[0,\"*\"]],\"start1\":25265,\"start2\":25265,\"length1\":223,\"length2\":2474}]"
metadata_diff: {"new":{},"deleted":[]}
encryption_cipher_text: 
encryption_applied: 0
updated_time: 2026-06-03T12:27:53.655Z
created_time: 2026-06-03T12:27:53.655Z
type_: 13