Files
mxaccess/rust
Joseph Doherty 703c540bdc [M5] mxaccess-asb: MX_ASB_TRACE_REPLY trace + F30/F31 followups
Adds env-gated diagnostic trace `MX_ASB_TRACE_REPLY` that, on every
incoming SizedEnvelope, prints the raw reply bytes + decoded body
tokens (capped at 64) before any consumer-level decode runs. Used to
isolate the next blocker after F28's wire-format fixes landed: with
canonical XML signing, registry-driven DH params, dynamic-dict id
management, ConnectionValidator wire-format-per-action, chunked
ASBIData decode, and 0x0A `ShortDictionaryXmlnsAttribute` all in
place, AuthenticateMe is accepted by the server and a real
RegisterItemsResponse comes back — but it decodes to an opaque token
stream of `<b:Static(43)>false</b:Static(43)>` etc. because every
field name is dict-encoded against the response's own binary header
pre-pop and we never resolve those ids on the read side.

Two new follow-ups capture the remaining work:
- **F30**: resolve dict-id element/attribute names on the read side.
  Mirror the F28 write-side fix: read-side dynamic dict accumulates
  session strings via `intern`, and `decode_tokens` (or a post-pass)
  needs to substitute `NbfxName::Static(id)` with the resolved
  `NbfxName::Inline(name)` so downstream `find_element_named` /
  `collect_asbidata_payloads` match.
- **F31**: server response indicates `successField=false` with an
  empty Status array on Register. Hypotheses (in order): (a) silent
  HMAC mismatch despite F23 deterministic parity; (b) request-side
  wire-byte delta the server tolerates but interprets as 0 items;
  (c) tag does not resolve in the live Galaxy state. Resolution
  needs F30 first to read the actual Status array + error codes.

Workspace: 710 unit tests pass. Clippy clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 20:35:29 -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.