Joseph Doherty
eb6c689f09
**F30 (read side):** post-pass over `body_tokens` in `decode_envelope` substitutes `NbfxName::Static(id)` → `NbfxName::Inline(name)` and `NbfxText::DictionaryStatic(id)` → `NbfxText::Chars(name)` whenever the dict id resolves. Lookup tries the per-message binary header strings first (`(id-1)/2` slot), then falls back to the cumulative session dynamic dict, then the `[MC-NBFS]` static table for even ids. Tokens with unresolvable ids stay opaque so trace output still reveals them. This unblocks reading the live Register response: previously every field came back as `<b:Static(43)>false</…>` and we couldn't tell what the server actually said. Now we see `<b:successField>false</>` and `<b:resultCodeField>1</>` clearly. resultCode 1 maps to `AsbErrorCode.InvalidConnectionId` (`AsbResultMapping.cs:6`) — which means AuthenticateMe failed silently and the server discarded our connection state, even though the crypto stack is proven byte-equal to .NET. **Wire CV xmlns parity:** `<h:ConnectionValidator>` for the `XmlSerializer` mode (AuthenticateMe / Disconnect / KeepAlive) now emits all four xmlns declarations .NET writes, in the same order: `xmlns:h`, default `xmlns` (same value), `xmlns:xsi`, `xmlns:xsd`. .NET emits the default xmlns redundantly even though the `h` prefix is bound to the same URL — captured against the .NET probe via asb-relay. This was suspected to be the AuthenticateMe HMAC blocker but the live test still returns `InvalidConnectionId`, so the bug is elsewhere. **F31 updated** with the surviving hypotheses for the `InvalidConnectionId` mystery: server-side `XmlSerializer` constructor mismatch, subtle byte-level wire difference affecting deserialization, or unused `ServiceAuthenticationData` from the ConnectResponse. Resolution probably requires server-side instrumentation or controlled-scenario byte-level HMAC diff. Workspace: 710 unit tests pass. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
design/ — Rust port architectural plan
This folder is the design contract for the Rust replacement of AVEVA/Wonderware MXAccess. It is the gap between the .NET reference in src/ and the Rust crates that will be written under a sibling rust/ workspace (per CLAUDE.md).
The folder is structured as a small set of focused documents. Read in order; each builds on the previous.
| File | Purpose |
|---|---|
00-overview.md |
Mission, two-layer goal, architectural principles, non-goals |
10-raw-layer.md |
Byte-accurate raw MXAccess layer (codec + transport + session) |
20-async-layer.md |
Idiomatic Tokio async layer on top of the raw layer |
30-crate-topology.md |
Cargo workspace, crates, dependencies, build/test commands |
40-protocol-invariants.md |
Bill of materials: IIDs, opnums, envelope/handle bytes |
50-error-model.md |
MxStatus, error types, panic/cancellation policy |
60-roadmap.md |
Milestones M0..M6, validation strategy |
70-risks-and-open-questions.md |
Parity gaps, unproven flows, cross-platform constraints |
dependencies.md |
Cross- and within-milestone parallelism map; agent budget per phase |
review.md |
Adversarial review log (BLOCKER/MAJOR/MINOR/NIT findings, all resolved) |
prompt.md |
/loop driver prompt for autonomous M2–M6 execution |
followups.md |
Open / resolved deferred work items; auto-triaged by prompt.md Step 0 (created on first /loop run if missing) |
The design is grounded in the .NET reference at src/ and the protocol artifacts in docs/, analysis/, and captures/. Do not introduce protocol behavior in these documents that is not already proven in the reference. When adding a new claim about wire format, cite either:
- a
.csfile path insrc/MxNativeCodec/,src/MxNativeClient/, orsrc/MxAsbClient/, or - a
docs/*.mdspec file, or - a
captures/0NN-frida-*directory oranalysis/frida/*.tsvrow.
This folder is documentation, not code. When the Rust workspace is created, the design here is the contract it must satisfy. When evidence in captures/ invalidates a design decision here, update the design first, then the code.
Reading order
- New contributor: 00 → 30 → 10 → 40 → 20 → 50 → 60 → 70.
- Protocol question: 40 first, then the relevant section of 10.
- API question: 20 first, then 50.
- Planning a milestone: 60 first, cross-reference 70 for blockers.
- Scheduling concurrent work:
dependencies.mdfor the per-phase parallelism map. - Driving M2–M6 autonomously via
/loop:prompt.md(and thefollowups.mdtriage log it maintains).