swaitsandClaude Opus 4.6
9db901088e
- CHANGELOG.md: Full audit findings organized by severity - PYMC_CORE_ISSUES.md: 7 evidence-based bug reports for pyMC_core (wrong constants, broken path_len decoding, wrong TRACE hash, wrong SNR calculation) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Add comprehensive spec audit results and pyMC_core issue reports - CHANGELOG.md: Full audit findings organized by severity - PYMC_CORE_ISSUES.md: 7 evidence-based bug reports for pyMC_core (wrong constants, broken path_len decoding, wrong TRACE hash, wrong SNR calculation) - Remove ERRATA.md: contents already covered by audit findings Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
50 lines
1.2 KiB
Markdown
50 lines
1.2 KiB
Markdown
# MeshCore Protocol Specification
|
|
|
|
## Section 13: Payload — Raw Custom
|
|
|
|
### Overview
|
|
|
|
The RAW_CUSTOM payload carries application-defined raw bytes with no prescribed
|
|
structure. It is intended for applications that implement their own encryption,
|
|
framing, or payload formats on top of the MeshCore transport.
|
|
|
|
### Payload Type
|
|
|
|
Header payload type field: `0x0F` (RAW_CUSTOM)
|
|
|
|
### Wire Format
|
|
|
|
```
|
|
0
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
| Raw Data (1-184 bytes) |
|
|
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
|
|
```
|
|
|
|
### Fields
|
|
|
|
| Field | Offset | Size | Type | Description |
|
|
|-------|--------|------|------|-------------|
|
|
| data | 0 | 1-184 bytes | raw | Application-defined payload |
|
|
|
|
### Routing
|
|
|
|
In the current reference implementation, RAW_CUSTOM packets are only processed
|
|
when received via direct routing. They are NOT flood-routed.
|
|
|
|
### Constraints
|
|
|
|
- Payload MUST be at least 1 byte.
|
|
- Maximum payload: 184 bytes (MAX_PACKET_PAYLOAD).
|
|
- Maximum total data: limited by `sizeof(Packet::payload)` which is
|
|
MAX_PACKET_PAYLOAD (184).
|
|
|
|
### Cross-References
|
|
|
|
- Test vectors: `corpus/payloads/raw-custom/`
|
|
|
|
### Reference Implementation
|
|
|
|
- `Mesh::createRawData()` in `src/Mesh.cpp` — Encoding
|
|
- `Mesh::onRecvPacket()`, case `PAYLOAD_TYPE_RAW_CUSTOM` — Processing (direct only)
|