Set up the protocol spec as an mdBook and add a GitHub Actions workflow that builds it on every push/PR and deploys to GitHub Pages on main. The repo is now both a machine-readable corpus and a browsable, searchable site. Structure changes (one-time, mechanical): - Rename the spec source directory from `spec/` to `src/` to match mdBook's default convention. All 21 chapter files move; their internal relative cross-links are unchanged. - Add `src/SUMMARY.md` as the mdBook table of contents, grouping chapters under Wire Format, Payloads, Cryptography & Identity, and Routing & Higher-Layer Protocols. - Add `book.toml` at repo root: title, author, search enabled, fold enabled, edit-on-GitHub links, navy theme. - Add `.github/workflows/mdbook.yml`: build on push + PR, deploy on push to main only (configure-pages + upload-pages-artifact + deploy-pages from actions/). - Add `/book/` to .gitignore. Reference updates so the old path is fully retired: - Every `spec_ref` in `corpus/**/*.json` rewritten from `spec/` to `src/` (54 files). - Schema description text and example path in `corpus/schema/test-vector.schema.json`. - `README.md`: prominent link to the published site near the top; "What's Here" updated for the new layout. - `CONTRIBUTING.md`: spec-editing instructions point at `src/` and note the SUMMARY.md requirement. - `CLAUDE.md`: directory-layout notes updated. CHANGELOG.md historical entries intentionally keep their `spec/` paths since those record what the paths were at the time of those commits. After this lands, the user needs to enable GitHub Pages in repo settings with source = "GitHub Actions" (one-time, manual). The workflow will then publish to https://swaits.github.io/meshcore-spec/ on every push to main. Verified locally: `mdbook build` produces a clean book/ tree with all 21 chapters rendered and the SUMMARY-driven sidebar populated. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
50 lines
1.2 KiB
Markdown
50 lines
1.2 KiB
Markdown
# MeshCore Protocol Specification
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## Section 13: Payload — Raw Custom
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### Overview
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The RAW_CUSTOM payload carries application-defined raw bytes with no prescribed
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structure. It is intended for applications that implement their own encryption,
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framing, or payload formats on top of the MeshCore transport.
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### Payload Type
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Header payload type field: `0x0F` (RAW_CUSTOM)
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### Wire Format
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```
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0
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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| Raw Data (1-184 bytes) |
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+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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```
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### Fields
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| Field | Offset | Size | Type | Description |
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|-------|--------|------|------|-------------|
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| data | 0 | 1-184 bytes | raw | Application-defined payload |
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### Routing
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In the current reference implementation, RAW_CUSTOM packets are only processed
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when received via direct routing. They are NOT flood-routed.
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### Constraints
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- Payload MUST be at least 1 byte.
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- Maximum payload: 184 bytes (MAX_PACKET_PAYLOAD).
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- Maximum total data: limited by `sizeof(Packet::payload)` which is
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MAX_PACKET_PAYLOAD (184).
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### Cross-References
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- Test vectors: `corpus/payloads/raw-custom/`
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### Reference Implementation
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- `Mesh::createRawData()` in `src/Mesh.cpp` — Encoding
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- `Mesh::onRecvPacket()`, case `PAYLOAD_TYPE_RAW_CUSTOM` — Processing (direct only)
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