Files
mxaccess/rust
Joseph Doherty d03bd04ef5
rust / build / test / clippy / fmt (push) Has been cancelled
[F34 evidence] dump WCF binary-header dictionary for AddMonitoredItems
Extends tests/add_monitored_items_request_capture.rs with a manual
binary-header walk that prints every pre-interned string + its wire
id. The captured request's binary header pre-declares **23 strings**
covering the entire DataContract field set:

  wire-id  1  http://ASB.IDataV2:addMonitoredItemsIn
  wire-id  3  AddMonitoredItemsRequest
  wire-id  5  SubscriptionId
  wire-id  7  Items
  wire-id  9  http://schemas.datacontract.org/.../ASBIDataV2Contract
  wire-id 11  MonitoredItem
  wire-id 13  activeField
  wire-id 15  activeFieldSpecified
  wire-id 17  bufferedField
  wire-id 19  itemField
  wire-id 21  contextNameField
  wire-id 23  idField
  wire-id 25  idFieldSpecified
  wire-id 27  nameField
  wire-id 29  referenceTypeField
  wire-id 31  typeField
  wire-id 33  sampleIntervalField
  wire-id 35  timeDeadbandField
  wire-id 37  timeDeadbandFieldSpecified
  wire-id 39  userDataField
  wire-id 41  lengthField
  wire-id 43  payloadField
  wire-id 45  valueDeadbandField

That gives F34's binary-builder rewrite the exact dict-id mapping
to target — every MonitoredItem child can be emitted as a
DictionaryStatic(odd-id) reference instead of an inline string,
matching WCF's compression. The "RequireId" mystery from the
earlier inline-name decode is also resolved: the wire body has
NO `RequireId` element at the bottom — the trailing `Inline("referenceTypeField")` was a dict-id wraparound or auto-intern artifact, not actual content.

design/followups.md F34 updated with the full ground-truth header,
plus a refined "Resolves when" pointing at the underlying
`nbfx.rs::decode_tokens` auto-intern semantics. The current codec's
doc comment ("the codec doesn't auto-intern") is correct for raw
[MC-NBFX] but wrong for WCF binary messages where the writer
auto-interns by convention; that's the structural fix the F34 binary
rewrite depends on.

No code-path change in this commit beyond the test improvements.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 03:05:20 -04:00
..

mxaccess (Rust port)

Native Rust replacement for AVEVA / Wonderware MXAccess. See ../design/ for the architectural specification, ../src/ for the .NET reference (the executable spec), and ../CLAUDE.md for project-wide rules.

Status

M0 — Workspace skeleton. Stub types compile; nothing is implemented yet. See ../design/60-roadmap.md for the M0M6 milestone plan.

Layout

rust/
  Cargo.toml                 workspace root
  rust-toolchain.toml        1.85 stable
  crates/
    mxaccess-codec/          pure protocol codec, no I/O
    mxaccess-galaxy/         Galaxy SQL resolver (tiberius)
    mxaccess-rpc/            DCE/RPC + NTLMv2 + OXID + OBJREF
    mxaccess-callback/       INmxSvcCallback RPC server
    mxaccess-nmx/            INmxService2 client
    mxaccess-asb-nettcp/     net.tcp framing (MC-NMF + MC-NBFX/NBFS)
    mxaccess-asb/            IASBIDataV2 client
    mxaccess/                async session + Transport trait + public API
    mxaccess-compat/         LMXProxyServer-shaped facade

Build

cargo build --workspace
cargo test --workspace
cargo clippy --workspace -- -D warnings
cargo fmt --check

Live probes

. ..\tools\Setup-LiveProbeEnv.ps1
cargo test -p mxaccess --features live -- --ignored

The setup script fetches credentials from Infisical via wwtools/secrets/Get-Secret.ps1. Never inline plaintext credentials.

License

MIT — see ../LICENSE.