Commit Graph

73 Commits

Author SHA1 Message Date
Joseph Doherty cbc95a4684 [F33] design/followups: capture live-subscribe wire gap
Live run of `cargo run -p mxaccess --example asb-subscribe` against
the local AVEVA install (with DH params + passphrase loaded from
Setup-LiveProbeEnv.ps1 + Get-AsbPassphrase.ps1) surfaced two concrete
gaps in the subscription-path response decoders:

1. `CreateSubscriptionResponse` returns subscription_id = 0 — the
   server almost certainly assigns a real Int64, but
   decode_create_subscription_response can't locate the
   `<SubscriptionId>` element. Likely a dict-id our F30 post-pass
   doesn't resolve for that specific element name.

2. `AddMonitoredItemsResponse` decode fails with MissingField
   "Status". The wire shape needs a capture-and-diff vs the .NET
   probe's subscription path.

Once subscribe-side ops are issued, the channel desyncs — subsequent
read() on the same session fails with the same MissingField error,
suggesting NBFX framing state may also be out of sync.

The F26 stream API itself (AsbSession::subscribe → Stream<Item =
Result<MonitoredItemValue, Error>>) is complete and unit-tested
(commit f2f22df). This followup just captures the live-wire
reconciliation work that's still required to make the subscribe
path actually return data against MxDataProvider. Once F33 closes,
the last M5 live-wire gap is resolved.

P2 — not blocking M5 closeout; blocks the Subscribe demo.

The asb-subscribe.rs example stays in its working Read-loop form
(no regression). When F33 lands, the example can be promoted to
demonstrate the full subscribe flow.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 01:17:09 -04:00
Joseph Doherty f2f22dfcd1 [F26 stream] mxaccess: AsbSession::subscribe — Stream<Item = MonitoredItemValue>
rust / build / test / clippy / fmt (push) Has been cancelled
Closes the last F26 stub from the M5 status block. New
AsbSession::subscribe(subscription_id) returns an AsbSubscription
that impls Stream<Item = Result<MonitoredItemValue, Error>>. An
internal tokio::spawn'd publish-loop drains the subscription queue
via the existing AsbSession::publish() and fans each
PublishResponse's `values` array out as individual stream items.

Termination semantics:
  - Drop of AsbSubscription calls JoinHandle::abort() — the publish
    task stops draining the server-side queue (the .NET reference
    pattern at MxAsbDataClient.cs uses the same task-cancellation
    shape).
  - Transport error from publish() is delivered as the final stream
    item; the loop returns and the channel closes.
  - Receiver-drop (consumer stops polling) is detected when
    tx.send returns Err — the loop exits without making more
    publish calls.

The inner publish_loop helper takes any FnMut() -> Future<Result<...>>
so it's testable in isolation (no live ASB endpoint required).

Per-item ItemStatus from the server is intentionally not surfaced
on the stream: the field is opaque per-item and rarely actionable
for the streaming consumer. A richer struct can wrap each value if
that need surfaces.

3 new tests pin:
  - asb_subscription_is_stream_send_unpin (compile-time bounds);
  - publish_loop_delivers_values_then_terminates_on_error
    (3 Ok values from 2 batches, then 1 terminal Err);
  - publish_loop_exits_when_consumer_drops_channel.

New deps used (already in mxaccess Cargo.toml): futures_util::Stream,
tokio::sync::mpsc, tokio_stream::wrappers::ReceiverStream,
tokio::task::JoinHandle.

Workspace: 718 → 721 tests. Default-feature clippy clean.
mxaccess crate-level doc updated to drop the "stubbed for next F26
iteration" note for the subscription stream.

design/followups.md F18 M5 status block updated: F26 stream
subscription marked resolved.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-06 01:10:22 -04:00
Joseph Doherty 8e695b9347 [F12 wrapper + F32 close] Session::connect_nmx_auto + close M5 type-matrix DoD
rust / build / test / clippy / fmt (push) Has been cancelled
Two related closures in one commit:

1. Session-level wrapper around F12: new
   `mxaccess::Session::connect_nmx_auto(ntlm_factory, options,
   resolver, recovery)` gated on a new `mxaccess/windows-com` feature
   (which propagates `mxaccess-nmx/windows-com`). Drives
   `NmxClient::create` (the F12 COM-activation factory) for the
   `(host, port, service_ipid)` discovery, then funnels into the
   shared post-NMX-bind orchestration. Refactored `connect_nmx` to
   extract steps 1+2+4+5 into a private `from_nmx_client` helper —
   both `connect_nmx` and `connect_nmx_auto` reuse it so the
   `CallbackExporter` + router + `RegisterEngine2` + heartbeat policy
   stays in one place. The .NET `MxNativeSession.Open` shape
   (`MxNativeSession.cs:127-147`) is now reproduced end-to-end on
   Windows with `windows-com` on — callers no longer pre-resolve
   `(addr, service_ipid)` by hand.

   `connect_nmx`'s doc comment updated to drop the stale "F12 not yet
   wired" note. `parse_bracketed_host_port` in mxaccess-nmx gets a
   `cfg_attr(not(...), allow(dead_code))` so the default-feature
   build stays warning-clean.

2. F32 closed via option (b) of its own resolve criterion: the four
   missing types (Float / Double / DateTime / Duration) are gated on
   Galaxy-side template provisioning that's outside the Rust port's
   scope. The deployed test Galaxy on this host only has
   mx_data_type ∈ {1=Bool, 2=Int32, 5=String}; we cannot exercise
   the missing types without authoring new template attributes in
   the Aveva console (a manual platform-engineering task). The
   three-type live verification at commit 9063f10 satisfies the M5
   DoD bullet for what is deployable. F18's M5 status block updated
   to reflect F32-resolved.

Workspace: 718 tests pass on default features (was 712 before F12,
+6 from new parse_bracketed_host_port tests). Default-feature
clippy + windows-com clippy both clean.

Closes F32 in design/followups.md and extends F12's resolution note
with the Session-level wrapper.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 22:30:25 -04:00
Joseph Doherty daa4ea3f16 [F12] mxaccess-nmx: NmxClient::create — auto-resolving COM-activation factory
rust / build / test / clippy / fmt (push) Has been cancelled
New constructor NmxClient::create(ntlm_factory) gated on
cfg(all(windows, feature = "windows-com")). New crate feature
mxaccess-nmx/windows-com propagates to mxaccess-rpc/windows-com.
Mirrors ManagedNmxService2Client.Create() (cs:30-64) plus
ResolveService (cs:491-523).

Six-step bring-up:
  1. com_objref_provider::marshal_activated_iunknown_objref(
       "NmxSvc.NmxService", MarshalContext::DifferentMachine)
     activates and emits the OBJREF.
  2. ComObjRef::parse extracts oxid + the activated server's IUnknown
     IPID.
  3. resolve_oxid_with_managed_ntlm_packet_integrity against
     127.0.0.1:135 (RPCSS endpoint mapper) returns the server's
     (host, port) bindings + IRemUnknown IPID.
  4. parse_bracketed_host_port pulls the host + port out of the
     ncacn_ip_tcp binding's `host[port]` text. Uses rfind for the
     rightmost brackets so FQDN forms (foo.example.com[1234])
     round-trip — matches the .NET ParseBracketedHost/Port shape at
     cs:540-561.
  5. A fresh DceRpcTcpClient binds to IRemUnknown and calls
     RemQueryInterface(iunknown_ipid, INmxService2_IID,
                        fresh_causality_id, public_refs=5).
  6. A second fresh transport binds to INmxService2 via Self::connect.

The ntlm_factory: impl FnMut() -> NtlmClientContext closure is
invoked three times (one per bind); each NtlmClientContext is
consumed by its bind, so the factory must produce fresh contexts.

New NmxClientError variants:
  - Activation(ProviderError) — only emitted with windows-com on.
  - EndpointResolution { reason } — covers no ncacn_ip_tcp binding,
    malformed host[port], non-zero RemQueryInterface HRESULT.

6 offline tests on parse_bracketed_host_port: FQDN host extraction,
rfind for rightmost brackets, rejection of missing '[' / missing
']' / non-numeric port / port overflow.

1 live test (#[ignore], gated on MX_LIVE + MX_TEST_USER /
MX_TEST_PASSWORD / MX_TEST_DOMAIN populated by
tools/Setup-LiveProbeEnv.ps1): round-trips the full chain against
the AVEVA install on this host. Resolved INmxService2 IPID is
non-zero — verified end-to-end.

Workspace: mxaccess-nmx 17 → 23 (+6). All other crates unchanged.

Closes F12 in design/followups.md. F6 (ComObjRefProvider port) was
the prior blocker; with both landed, the COM-activation path is
end-to-end functional.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 22:21:49 -04:00
Joseph Doherty cf9dbaf568 [F6] mxaccess-rpc: ComObjRefProvider port via windows-rs (CoMarshalInterface)
rust / build / test / clippy / fmt (push) Has been cancelled
New module crates/mxaccess-rpc/src/com_objref_provider.rs gated on
cfg(all(windows, feature = "windows-com")). Pulls windows = "0.59"
(features Win32_Foundation + Win32_System_Com +
Win32_System_Com_Marshal + Win32_System_Com_StructuredStorage +
Win32_System_Memory) as an optional dep behind the existing
windows-com feature; default footprint stays slim.

Public API mirrors ComObjRefProvider.cs 1:1: MarshalContext enum
(InProcess / Local / DifferentMachine wrapping the MSHCTX_* newtype
constants), clsid_from_prog_id, marshal_activated_iunknown_objref
(activates via CoCreateInstance with INPROC | LOCAL | REMOTE then
marshals), marshal_iunknown_objref (uses IUnknown::IID),
marshal_interface_objref (CoMarshalInterface over an HGlobal-backed
IStream).

All `unsafe` is internal to the module — public API exposes only
typed Rust values (Vec<u8>, GUID, ProviderError), no raw pointers /
HRESULTs / lifetime-bound interface pointers leak. Each unsafe block
carries an inline SAFETY comment naming the invariants being upheld.

Per-thread COM init via thread-local OnceLock<()>: lazy
CoInitializeEx(MULTITHREADED) on first call; S_FALSE (already
initialised) and RPC_E_CHANGED_MODE (thread is STA) treated as
success — matches the .NET runtime's tolerant apartment behaviour.

ProviderError enumerates the four documented failure modes plus the
apartment-init pre-check: UnknownProgId / ActivationFailed /
MarshalFailed / GlobalLockFailed / ApartmentInitFailed.

4 offline tests: MarshalContext → MSHCTX_* mapping, ensure_apartment
idempotence, clsid_from_prog_id returns UnknownProgId for fake
ProgIDs, marshal_activated short-circuits at the resolution stage.

1 live test (#[ignore], gated on MX_LIVE): activates the real
NmxSvc.NmxService, marshals the proxy's IUnknown via
CoMarshalInterface, then parses the resulting blob via
ComObjRef::parse and asserts non-zero OXID + IPID. Passes against
the AVEVA install on this host.

Workspace tests: mxaccess-rpc went 179 → 183 (+4). All other crates
unchanged.

Unblocks F12 (NmxClient::create — the auto-resolving
COM-activation factory): the underlying primitive
(marshal_activated_iunknown_objref) now exists; remaining work is
threading the windows-com feature through mxaccess-nmx and chaining
ComObjRef::parse → resolve_oxid_with_managed_ntlm_packet_integrity →
RemQueryInterface. design/followups.md F12 updated with a revised
"Resolves when" reflecting that F6's blocker is gone.

Closes F6 in design/followups.md.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 22:11:33 -04:00
Joseph Doherty 41f2d4c0f2 [F14] mxaccess-galaxy: tiberius-backed SQL Resolver + UserResolver
rust / build / test / clippy / fmt (push) Has been cancelled
New module crates/mxaccess-galaxy/src/sql_resolver.rs (~480 LoC) gated
behind the existing galaxy-resolver Cargo feature. Adds SqlTagResolver
+ SqlUserResolver, both constructed via from_ado_string(&str)
accepting the same connection-string shape the .NET reference uses by
default (Server=localhost;Database=ZB;Integrated Security=True;
Encrypt=False;TrustServerCertificate=True). Integrated Security=True
resolves to Windows auth via tiberius's winauth feature.

Each top-level call (resolve / browse / resolve_by_guid /
resolve_by_name) opens a fresh Client<Compat<TcpStream>> and drops it
on return — matches the .NET `await using` lifecycle at
GalaxyRepositoryTagResolver.cs:93-95. tiberius's Client::query only
accepts positional @P1..@PN placeholders (delegates to sp_executesql);
the canonical RESOLVE_SQL / BROWSE_SQL / USER_BY_GUID_SQL /
USER_BY_NAME_SQL constants are rewritten once-per-process via
OnceLock<String> (@objectTagName → @P1, etc.). The unrewritten
constants stay byte-identical with the .NET reference for ad-hoc
diagnostic copy/paste.

read_metadata mirrors ReadMetadata (cs:149-165) byte-by-byte: signed
smallint → i16 widened to u16 for platform/engine/object IDs (matches
the .NET checked((ushort)reader.GetInt16(N)) shape), int → i32
checked-cast to i16 for property_id, nullable nvarchar for
primitive_name. read_user_profile mirrors ReadProfile (cs:76-85)
including the roles_text blob → parse_role_blob round-trip.

Deps added (gated): tiberius 0.12 (default-features = false; tds73 +
rustls + winauth — no chrono / rust_decimal pulled), tokio-util's
compat feature for the futures-rs ↔ tokio AsyncRead bridge,
futures-util for TryStreamExt::try_next. Default-feature build still
pulls only mxaccess-codec + async-trait + thiserror + uuid (slim
foot-print preserved per the design doc's intent).

New `live` feature on this crate (`live = ["galaxy-resolver"]`) for
parity with the workspace pattern.

11 offline unit tests pin: SQL named→positional rewriting (no @named
left, @P1/@P2/@P3 present), line-count preserved, ado-string
acceptance (default Galaxy shape parses, garbage rejected), input
validation (max_rows=0 rejected, empty LIKE rejected, empty user_name
rejected, all checked before connect attempt).

Two #[cfg(feature = "live")] #[ignore]'d tests round-trip against a
real Galaxy DB (gated on MX_LIVE + MX_GALAXY_DB env vars per
tools/Setup-LiveProbeEnv.ps1). Live verification on this host:
live_resolve_test_child_object_test_int and
live_browse_test_child_object both pass against the local AVEVA
install — TestChildObject.TestInt resolves with mx_data_type=2
(Int32), is_array=false.

Closes F14 in design/followups.md.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 21:54:43 -04:00
Joseph Doherty 9501080170 [F4+F5] mxaccess-rpc: BindAck/AlterContextResponse parser + live-capture round-trip
rust / build / test / clippy / fmt (push) Has been cancelled
Adds BindAckPdu + per-result BindAckResult per [C706] §12.6.3.4: u16
result + u16 reason + 20-byte SyntaxId, preceded by port_any_t secondary
address, n_results, and 3 reserved bytes. Encode/decode handle both
PacketType::BindAck and PacketType::AlterContextResponse (same body
shape).

The new bind_ack_round_trips_live_capture test takes the first 84 bytes
of the server's first response in
captures/013-loopback-subscribe-scalars/tcp-stream-__1_49704-to-__1_55690.bin
(real BindAck observed against local AVEVA), decodes the shape
(secondary address "49704\0", n_results=2, NDR transfer syntax accepted,
DCOM negotiate_ack reason=3), then re-encodes and asserts byte-identical
to the original frame. Stronger evidence of wire parity than the prior
synthetic-frame tests, and lets the rest of the M2 stack reason about
the negotiated transfer syntax instead of relying on request-side
context to infer it.

Closes F4 and F5 in design/followups.md.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 21:44:54 -04:00
Joseph Doherty 826f7b3f89 [M5] mxaccess-asb-nettcp: F29 resolved — full canonical [MC-NBFS] table port
rust / build / test / clippy / fmt (push) Has been cancelled
The original hand-curated table was wrong starting at id 74 — entries
had been deduplicated/renumbered without preserving the canonical
`id = 2 * StringN` mapping from `[MC-NBFS]` §2.2, leaving most of
the SOAP-fault subset at the wrong ids:

  ours had Fault at 114, canonical is 134
  ours had Code at 122, canonical is 142
  ours had Reason at 124, canonical is 144
  ours had Text at 126, canonical is 146
  ours had Value at 134, canonical is 154
  ours had Subcode at 136, canonical is 156

Wire captures from the live AVEVA MxDataProvider use the canonical
ids — verified earlier via `MX_ASB_TRACE_REPLY` showing
`<resultCodeField>` correctly resolved through the F30 post-pass
once the ids matched.

Replaced the entire STATIC_ENTRIES array with a faithful port of the
first 200 entries from `dotnet/wcf`'s
`src/System.ServiceModel.Primitives/src/System/ServiceModel/
ServiceModelStringsVersion1.cs` (sourced via WebFetch — that file is
the canonical [MC-NBFS] §2.2 table mirrored in code). The wire id is
`2 * StringN` for `StringN` at 0-based position N. Coverage now spans
id 0..400, picking up the full SOAP / WS-Addressing / WS-RM /
WS-Security / WS-SecureConversation / WS-Trust / xmldsig+xenc URIs /
SAML / Kerberos / X509 token-type subset. The 436..444 xsi/xsd/nil
extras (used by .NET XmlSerializer for [MessageContract] value-type
bodies) are preserved.

Four new regression tests:
- ids monotonic (was already there);
- ids all even (`[MC-NBFS]` reserves odd ids for the dynamic dict);
- SOAP-fault subset (s, Fault, MustUnderstand, Code, Reason, Text,
  Node, Role, Detail, Value, Subcode) resolves to the canonical
  strings — pins the fix against accidental regression;
- `position_of_static` round-trips for known strings.

Followups:
- F29 moved to ## Resolved with full audit-trail.
- F18 M5 status block updated to strike F29 from the remaining-work
  list. The remaining open M5 items are F32 (live type-matrix beyond
  Int32/String/Bool, gated on Galaxy provisioning) and F28 (canonical
  XML signing for Read/Write/Subscribe ops, P2 latent).

Workspace: 712 unit tests pass (was 711 + 1 new fault-subset test +
existing tests now matching canonical). Clippy clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 21:31:09 -04:00
Joseph Doherty 5845b5eb12 [M5] mxaccess-asb: F32 partial — Bool + String + Int32 live, longer retry budget
rust / build / test / clippy / fmt (push) Has been cancelled
Three of seven proven types now round-trip end-to-end against the
live MxDataProvider:

   Int32   (type_id 4)  — TestChildObject.TestInt = 99
   String  (type_id 10) — TestChildObject.TestString = "mxaccesscli
                            verified 17778523775" (UTF-16LE on wire)
   Bool    (type_id 17) — DelmiaReceiver_001.TestAttribute = 0

A SQL probe of the live Galaxy (`gobject ⨝ package ⨝
dynamic_attribute` grouped by `mx_data_type`) shows only types {1=Bool,
2=Int32, 5=String} have deployed instances. Float/Double/DateTime/
Duration/array shapes are not in this Galaxy, so the remaining four
type-matrix bullets in F32 are gated on Galaxy-side provisioning
that's outside the Rust port's scope. The M5 DoD #3 was always going
to bottom out at "what types are deployed in the test environment."

Code changes:
- `register_items` retry budget bumped: 10 attempts (was 5) with
  `200 * attempt` ms backoff (was 100 * attempt). Worst-case wait
  ~11 s, well within user-perceived latency on a one-shot RPC. The
  .NET reference's 5×100 ms didn't always cover the live AVEVA
  install's auth-state-commit latency on this hardware.
- `AsbClient::connect` adds a 250 ms `tokio::time::sleep` immediately
  after the one-way `AuthenticateMe` send. The server processes the
  request asynchronously; without an initial settle, the per-op retry
  loop frequently exhausts its budget on the InvalidConnectionId
  race even on the FIRST register attempt. 250 ms is short enough to
  be invisible and long enough to absorb the typical commit delay.
- `examples/asb-subscribe.rs` now prints `result_code` and `success`
  alongside the status count so the user can see when register is
  hitting the retry-exhausted state.

Live flakiness note: the AuthenticateMe race is not fully
deterministic — after many back-to-back test runs the live server
appears to degrade (presumably pending-connection table fills) and
the retry budget exhausts on EVERY tag, not just one. A 30-second
cool-down restores reliability. Production deployments with a single
long-lived session are unlikely to hit this. F32 status doc captures
the observation.

Workspace: 711 unit tests pass. Clippy clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 21:21:07 -04:00
Joseph Doherty 4ddb6542e1 [M5] design: followups update — M5 functionally LIVE, F30/F31 resolved
F18 (M5 master) gains an "M5 STATUS" block right after the DoD
checklist showing the live end-to-end win (commit `9063f10`,
TestChildObject.TestInt round-trips with payload [99,0,0,0]) and
ticking each DoD bullet:
-  Live `asb-subscribe` succeeds.
- ⚠️ Wire request bytes match .NET byte-for-byte; response parity
  uses the F30 dict-id resolution post-pass + chunked-Bytes
  concatenation instead of strict byte equality (functionally
  equivalent — both decode to the same logical XML).
- ⚠️ Type matrix: only Int32 verified live; Bool/Float/Double/
  String/DateTime/Duration/arrays pending sample tags. Tracked
  under new F32.
-  build/test/clippy green (711 tests).

Followup churn:
- F30 + F31 moved to ## Resolved with proper "Resolved: <date>
  (commit `<hash>`)" headers. F30 was the unblocker for F31 —
  without read-side dict-id resolution we couldn't see
  `<resultCodeField>1</>` in the response.
- F28 status header updated to "PARTIALLY RESOLVED": the five
  [XmlSerializerFormat] ops (AuthenticateMe, Disconnect, KeepAlive,
  RegisterItems, UnregisterItems) plus DH params + dynamic-dict
  management all landed; Read/Write/Subscribe/Publish still sign
  over NBFX wire bytes via the legacy fallback. Severity demoted
  P0 → P2 because the live registry has empty `hashAlgorithm` and
  unsigned ops work in practice; promote back if that changes.
- F29 reaffirmed P2 (latent NBFS dict-id drift, no live impact).
- New F32 captures the type-matrix expansion as the only remaining
  P1 item for full M5 closeout.

No code change in this commit — design doc only.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 21:08:36 -04:00
Joseph Doherty 9063f10b1b [M5] mxaccess-asb: register_items retry on InvalidConnectionId — LIVE PATH WORKS
rust / build / test / clippy / fmt (push) Has been cancelled
End-to-end live path now functional: Connect → AuthenticateMe →
RegisterItems → Read → Disconnect. The example reads back the live
TestChildObject.TestInt value (99) over the wire on the first run.

Root-cause of the previous "InvalidConnectionId" mystery: it was
never an HMAC verification failure. `AuthenticateMe` is one-way
(`AsbContracts.cs:18`) and the server commits auth state
asynchronously after the request lands. A Register that follows too
quickly sees the connection in pre-authenticated state and returns
`AsbErrorCode.InvalidConnectionId` (= 1).

.NET's `MxAsbDataClient.RegisterMany` (`cs:191-204`) handles this
explicitly with a retry loop:

  for (int attempt = 1; attempt < 5
       && response.Result.ErrorCode == InvalidConnectionId; attempt++)
  {
      Thread.Sleep(TimeSpan.FromMilliseconds(100 * attempt));
      response = RegisterOnce(items);
  }

We now mirror the same pattern in `AsbClient::register_items_once`
followed by a retry loop in `register_items` — up to 5 attempts with
`100 * attempt` ms backoff.

Supporting changes:
- `RegisterItemsResponse` gains `result_code: Option<u32>` +
  `success: Option<bool>` so callers can read `Result.resultCodeField`
  + `successField` from the response. `decode_register_items_response`
  now tolerates an empty `<ASBIData />` Status array (server returns
  empty when the operation fails server-side) instead of erroring
  with `MissingField`. New helper `find_text_in_named_element` walks
  the body token stream.
- New public constant `RESULT_CODE_INVALID_CONNECTION_ID = 1` for
  callers that want to detect this status outside the retry path.
- The previously-failing test `decode_register_items_response_returns_
  missing_field_when_status_absent` was renamed and rewritten as
  `decode_register_items_response_returns_empty_status_when_absent`
  to match the new tolerant decode contract.

F31 closed. F30 (read-side dict-id resolution, landed in `eb6c689`)
was the unblocker — without it we couldn't see the
`<resultCodeField>1</>` element in the response and the failure mode
looked like a HMAC mismatch instead of a transient retryable error.

Workspace: 711 unit tests pass. Clippy clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 21:02:38 -04:00
Joseph Doherty eb6c689f09 [M5] mxaccess-asb: F30 read-side dict-id resolution + matching .NET CV xmlns
**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>
2026-05-05 20:47:50 -04:00
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
Joseph Doherty cf97eab396 [M5] mxaccess-asb: collect_asbidata_payloads concatenates chunked Bytes records
.NET's `XmlBinaryWriter.WriteBase64` chunks the byte array into
multiple consecutive NBFX `Bytes8/16/32` records when the total
exceeds the per-record budget. Live capture of a successful .NET
RegisterItemsResponse showed the Status ASBIData payload split into
`Bytes8(78) + Bytes8WithEndElement(1)` — total 79 bytes. Our decoder
walked tokens looking for a single `Text(Bytes(...))` after each
`<ASBIData>` element and stopped at the first chunk, returning a
truncated payload that hit `Codec(ShortRead)` when the consumer
tried to decode an ItemStatus from the partial bytes.

Fix: walk **all** consecutive `Text(Bytes)` tokens after `<ASBIData>`
and concatenate into a single payload before pushing to the result
vector. Mirrors WCF's reader behaviour, which reassembles the
chunks into one byte array via `XmlReader.ReadElementContentAsBase64`.

Workspace: 710 unit tests pass. Live state: AuthenticateMe is
accepted, RegisterItemsResponse decodes structurally — the remaining
"MissingField Status" error reflects a server-side semantic outcome
(server returned empty Status array) rather than a protocol bug,
likely tag-resolution related and outside F28's scope.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 19:36:38 -04:00
Joseph Doherty 104efc4e9b [M5] mxaccess-asb: F28 wire-format fixes — AuthenticateMe accepted live
Three wire-level bugs surfaced by side-by-side relay capture against
the .NET probe routed via the new --via flag:

1. **Dynamic-dictionary id drift**. Our `encode_envelope` hardcoded
   action_dict_id=1 / to_dict_id=3, which is correct for the FIRST
   message in a session but wrong for every subsequent one. The
   per-session dynamic dict accumulates across messages: Connect's
   binary header pre-pops [action,to] at ids 1,3; AuthenticateMe must
   reference the new action at id 5 (continuing the odd sequence) and
   the To URL at id 3 (still in the dict from Connect). Fix uses
   `DynamicDictionary::position_of` + `intern` to compute the right
   wire id, only pre-popping strings that are NEW to the session.
   Captured against .NET probe via asb-relay: AuthenticateMe binary
   header has only one string (action) at offset 0x260 (`06 de 08 2f
   2e ...`), and `<a:Action>` value `ab 05` references the new id 5.

2. **ConnectionValidator wire format depends on operation**. .NET's
   `IAsbDataV2` declares `[XmlSerializerFormat]` on AuthenticateMe,
   Disconnect, KeepAlive (one-way ops) — those use XmlSerializer for
   the ENTIRE message including the [MessageHeader] ConnectionValid-
   ator. Other ops use the default DataContractSerializer. The wire
   shapes differ:
     XmlSerializer: `<ConnectionId xmlns="http://asb.contracts.data/
       20111111">guid</ConnectionId>` (PascalCase property name in
       data namespace)
     DataContract: `<connectionIdField xmlns="http://schemas.data
       contract.org/2004/07/ArchestrAServices.ASBContract">guid</…>`
       (private "fooField" name in datacontract namespace)
   New `ValidatorWireFormat::for_action` picks the right shape per
   action; `encode_validator` now branches on it. New helpers
   `push_xml_text_field` / `push_xml_byte_array_field` for the
   XmlSerializer form. The DataContract form is preserved verbatim
   for Register/Read/Write/etc.

3. **Decoder missing 0x0A** (`ShortDictionaryXmlnsAttribute`). The
   server's RegisterItemsResponse uses `0x0A {dict-id}` to set the
   default namespace from the static dict; our decoder bailed out
   with `UnknownRecord(10)`. New decode arm produces a
   `DefaultNamespace` token with `DictionaryStatic` value.

**.NET probe gains a `--via` flag** (`AsbConnectionOptions.Via` →
`ChannelFactory.CreateChannel(addr, viaUri)`) so the probe can be
routed through asb-relay for byte-level capture without triggering
an `AddressFilterMismatch` fault. CoreWCF / .NET 10 dropped
`ClientViaBehavior`; the `CreateChannel(addr, via)` overload is the
modern equivalent.

Live status (this commit): Connect handshake works, AuthenticateMe
no longer faults (canonical XML + crypto + wire-format all match
.NET now), RegisterItemsResponse comes back from the server (a real
response, not a dispatcher fault). One remaining issue: our response
decoder hits `MissingField { field: "Status" }` — the server's
RegisterItemsResponse uses a slightly different element naming or
encoding than `collect_asbidata_payloads` expects. Next iteration
hunts that.

Workspace: 710 unit tests pass.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 19:29:48 -04:00
Joseph Doherty ce27b63010 [M5] auth: deterministic HMAC fixture test rules out crypto stack
Adds end-to-end byte-equality test against a `.NET reference fixture
captured via the new `MxAsbClient.Probe --dump-deterministic-hmac`
flag. All inputs are pinned (passphrase, prime, generator, private-
key bytes, remote-pub bytes, message number, connection ID, AES IV,
consumer-data + IV bytes), so the test reproduces .NET's exact
output for every crypto step:

1. shared = remote_pub^private_key mod prime —  matches
2. crypto_key = shared || passphrase_utf8 —  matches
3. hmac = HMAC-SHA1(crypto_key, xml_utf8) —  matches
4. aes_key = PBKDF2-SHA1(base64(crypto_key), salt, 1000, 16) — 
5. encrypted_mac = AES-CBC(aes_key, iv=zeros, hmac, PKCS7) — 

This conclusively rules out the entire crypto stack as the source of
the live AuthenticateMe `dispatcher/fault`. Our DH math, HMAC engine,
PBKDF2 derivation, AES-CBC PKCS7, and crypto_key concatenation are
byte-equal to .NET. The remaining live failure must come from one
of: (a) wire-level ConnectionValidator NBFX shape (DataContract field
names, mustUnderstand attribute, namespace), (b) WCF binary message
header (action+to dict pre-pop), or (c) a subtle XmlSerializer quirk
for live values that the hardcoded fixtures don't exercise (Guid
format edge case, base64 line wrapping, ulong text rendering).

Fixture lives at `crates/mxaccess-asb-nettcp/tests/fixtures/
deterministic-hmac/authenticate-me.kv` (KV format, ASCII hex, lines
trim CRLF/LF transparently). The companion `README.md` documents the
capture procedure and the per-step decomposition. The test consumes
the .NET-supplied canonical XML directly from the fixture's
`xml_utf8_b64` so a Rust XML emitter bug would not mask a Rust
crypto bug — XML byte-equality is verified separately by
`mxaccess-asb::xml_canonical::tests` against the `signed-xml/*.xml`
fixtures.

Workspace: 710 unit tests pass (was 709 + 1 new). Clippy clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 19:12:17 -04:00
Joseph Doherty 42ac10a88f [M5] design: F28 follow-up update with progress + remaining blocker
Updates F28 with:
- Captured-fixtures section now lists all 6 shapes (added the
  empty-MAC variant) and 10 inferred XmlSerializer rules including
  the empty-byte-array → self-closing-element rule we discovered.
- New "Emitter landed" section pointing at commit `f14580e` and the
  five exposed `emit_*` functions, plus the
  `AsbAuthenticator::peek_next_message_number` plumbing.
- New "Registry-driven DH params" section explaining why
  `CryptoParameters::defaults()` was insufficient for live testing
  (live AVEVA installs use 768-bit primes; default is 1024-bit) and
  documenting the new MX_ASB_DH_* env-var contract.
- New "Remaining live blocker" section documenting that AuthenticateMe
  still faults despite canonical XML byte-equality and registry-correct
  DH params — most likely a byte-level HMAC/AES discrepancy that needs
  a deterministic-input unit-test triple to pin down.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 17:38:23 -04:00
Joseph Doherty fd38189f43 [M5] auth+probe: env-gated crypto-key/AES-key trace for F28 follow-up
Adds diagnostic traces in both the Rust authenticator and the .NET
reference (under MX_ASB_TRACE_DERIVE / sharedTrace) that dump:
- crypto_key length + hex + base64 (shared || passphrase)
- derived AES key hex (PBKDF2-SHA1, 16 bytes)

Used to confirm during the F28 live-bring-up reconciliation that:
1. crypto_key passphrase suffix bytes [96..176] match between Rust and
   .NET — both read the same registry passphrase, both UTF-8-encode.
2. crypto_key shared_secret prefix bytes [0..96] DIFFER per run because
   each session has its own random DH private exponent. This is
   expected; what matters is the client+server agreement on the value
   for a single session, which the wire-tested DH math should produce
   given correct prime/generator/private-key handling.

Both traces are gated:
- Rust: `MX_ASB_TRACE_DERIVE=1` env var.
- .NET: `Action<string>? sharedTrace` field, populated when the
  authenticator is constructed with a non-null trace callback (the
  probe's `Console.WriteLine` shim wires this up by default).

Workspace: 709 tests still pass. No public-API changes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 17:37:22 -04:00
Joseph Doherty f14580e0db [M5] mxaccess-asb: F28 canonical-XML signing wired + registry-driven DH params
Adds `xml_canonical` module that emits XmlSerializer-compatible canonical
XML for the five primary `ConnectedRequest` shapes (AuthenticateMe,
Disconnect, KeepAlive, RegisterItemsRequest, UnregisterItemsRequest).
Six fixture-comparison tests verify byte-exact match against captured
.NET output, including the empty-MAC-IV variant that the live signing
flow uses (`authenticate-me-empty-mac-iv.xml`, 896 bytes; new
`emit_data_ns_byte_array` helper picks self-closing form for empty
byte[]).

Plumbing: `AsbAuthenticator::peek_next_message_number` exposes the
pre-allocated message number; `AsbClient::send_signed_envelope[_one_way]`
gain an `xml_for_signing: Option<&[u8]>` parameter. `connect`,
`disconnect`, `keep_alive`, `register_items`, `unregister_items` now
build a pre-signing `ConnectionValidator` (empty MAC + IV) + emit the
canonical XML + pass the bytes through to HMAC. Other ops (Read, Write,
Subscription) keep the legacy NBFX-bytes path until F28 expands to
cover their request shapes.

Live-bring-up wiring:
- `tools/Get-AsbPassphrase.ps1` now exports `MX_ASB_DH_PRIME`,
  `MX_ASB_DH_GENERATOR`, `MX_ASB_DH_HASH_ALGORITHM` (always — even when
  empty, so the example can distinguish "no env var" from "registry
  says empty"), and `MX_ASB_DH_KEY_SIZE`.
- `examples/asb-subscribe.rs` honours those env vars to override
  `CryptoParameters::defaults()`. Each AVEVA install picks its own DH
  group at provisioning time (768-bit prime is typical, vs the .NET
  reference's 1024-bit fallback that we previously hardcoded). Empty
  hashAlgorithm in the registry maps to `HashAlgorithm::Unrecognised`,
  matching `AsbSystemAuthenticator.CreateHmac:84-93` semantics where
  empty + forceHmac=true → HMAC-SHA1.
- `MxAsbClient.Probe --dump-signed-xml` flag (added in earlier commit)
  now traces the live HMAC inputs (`asb.sign.xml-utf8-len`,
  `asb.sign.xml-b64`, `asb.sign.hmac-b64`, etc.) so the Rust port can
  diff its canonical XML against .NET's byte-for-byte for any live
  scenario (env-driven via `Action<string>? sharedTrace`).

Wire-format alignment for `XmlSerializer` parity:
- `ItemIdentity::default()` and `absolute_by_name` now use
  `Some(String::new())` for null-able strings (matches .NET's
  `CreateAbsoluteItem` setting `ContextName = string.Empty` not null).
- `read_unicode_string` returns `Some(String::new())` for length-0
  rather than `None` — mirrors .NET's `AsbBinary.ReadUnicodeString:
  return string.Empty for byteLength == 0`. Wire format genuinely
  cannot distinguish null from empty (both encode as 4 bytes of zero);
  callers that need to preserve the distinction MUST track it in their
  domain types before encoding.

Live status (post-fix): Connect handshake completes end-to-end. The
canonical XML our emitter produces matches .NET's structure byte-for-
byte (verified by fixture comparison). DH prime/generator/hash now
match the live registry values. Despite all this, AuthenticateMe
still produces a generic dispatcher fault on the server — there's at
least one more subtle wire-byte or crypto mismatch that needs
isolation. F28 stays open with that note.

Workspace: 709 unit tests pass (was 702 + 7 new xml_canonical tests).
Clippy: clean (`-D warnings`).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 17:31:31 -04:00
Joseph Doherty dbb580b2c8 [M5] tools+fixtures: F28 canonical-XML signing target captured from .NET
Adds `MxAsbClient.Probe --dump-signed-xml` flag that builds five
ConnectedRequest shapes (AuthenticateMe, Disconnect, KeepAlive,
RegisterItemsRequest, UnregisterItemsRequest) with deterministic
field values and prints `AsbSerialization.ToXml(...)` output. The
output is exactly what `AsbSystemAuthenticator.Sign` HMACs
(`AsbSystemAuthenticator.cs:79`), so the Rust port's canonical-XML
emitter must produce byte-identical bytes for HMAC parity.

Captured fixtures land under
`rust/crates/mxaccess-asb/tests/fixtures/signed-xml/`:
- `authenticate-me.xml` — 1000 bytes
- `disconnect.xml` — 980 bytes
- `keep-alive.xml` — 705 bytes
- `register-items.xml` — 1068 bytes
- `unregister-items.xml` — 1072 bytes

Plus a `README.md` documenting 10 inferred XmlSerializer rules
(element name = class name not WrapperName, field order =
declaration order not [MessageBodyMember.Order], `[XmlType.Namespace]`
on field type causes per-child xmlns redeclaration on the children
not the wrapper, `*Specified` pattern controls Xxx emission, CRLF +
2-space indent + utf-16 declaration but UTF-8 bytes fed to HMAC).

`.gitattributes` marks the XML fixtures as binary (`*.xml -text`)
so neither `core.autocrlf` nor `text` filters can rewrite the byte
content — CRLF is part of the canonical form and must survive
round-trip through Git untouched.

`MxAsbClient.csproj` gains `<InternalsVisibleTo Include="MxAsbClient
.Probe" />` so the probe can reach the internal `AsbSerialization`
helper without making it public.

Workspace: 702 tests pass (no Rust changes — fixtures only).
F28 follow-up updated with the captured fixtures + the inferred rules.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 16:35:45 -04:00
Joseph Doherty d1e887b91b [M5] mxaccess-asb-nettcp/asb: Connect handshake live + SOAP fault detection
Live-bring-up reconciliation against AVEVA's MxDataProvider on Windows.
Connect now completes end-to-end (real DH key exchange, apollo:V2
encryption, ServicePublicKey/ServiceAuthenticationData populated). Five
fixes land:

1. NBFX `PrefixElement_a..z` (0x5E-0x77) and `PrefixAttribute_a..z`
   (0x26-0x3F) decode + encode arms. The server's ConnectResponse hit
   `0x65 = PrefixElement_h` for a dynamically-named element and our
   decoder bailed with `unknown NBFX record byte 0x65`. Both directions
   now round-trip; encoder picks short-form when prefix is a single
   lowercase ASCII letter.

2. xmlns redeclaration on `<Data>` AND `<InitializationVector>` inside
   `AuthenticationData` / `PublicKey`. `[XmlType(Namespace = ...)]` on
   AuthenticationData / PublicKey (`AsbContracts.cs:350-381`) means
   XmlSerializer emits `xmlns="..."` on each direct child. The default-
   ns scope ends at `</Data>`, so `<InitializationVector>` needs its own
   redeclaration to stay in the data namespace; without it the server
   fell back to messages-namespace and the deserialiser threw an
   `InternalServiceFault`.

3. SOAP-fault detection in `AsbClient::send_envelope`. New
   `ClientError::SoapFault { action, code, reason }` surfaces when the
   response Action header matches the canonical `dispatcher/fault`
   template; previously body decoders blindly ran and surfaced
   `MissingField { field: "Status" }` masking the actual fault. Reason
   text is extracted as the longest `NbfxText::Chars` in the body —
   robust against the `nbfs.rs` static-dictionary id mismatches.

4. Identified blocker (filed as F28): signed-request HMAC currently
   covers the NBFX wire bytes, but .NET's `AsbSystemAuthenticator.Sign`
   HMACs `Encoding.UTF8.GetBytes(request.ToXml())` — the canonical XML
   serialisation via `XmlSerializer` with namespace
   `urn:invensys.schemas` (`AsbSerialization.cs:12-48`). Until the Rust
   port emits identical XML bytes for `ConnectedRequest` subclasses,
   AuthenticateMe / RegisterItems / every signed RPC fault on the
   server. Connect itself is unsigned (`ServiceMessage` not
   `ConnectedRequest`) which is why it works today.

5. Identified `nbfs.rs` static-dictionary id drift (filed as F29): wire
   uses Fault=134/Code=142/Reason=144/Text=146/Value=154/Subcode=156
   but our table has them at 114/122/124/126/134/136. Off by 20 from
   id 114+ — 10 missing entries between `s` (id 112) and `Fault`. No
   request-side impact (we only encode IDs ≤44, all correct); the SOAP
   fault decode walks text records directly so it sidesteps the issue.

Workspace: 702 tests pass (no test count delta — wire-only fixes).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 16:29:12 -04:00
Joseph Doherty 4c4177050c [M5] mxaccess-asb-nettcp/asb: xmlns raw-string + xsi/xsd on Body
WIRE-FORMAT BREAKTHROUGH — our envelope is now valid NBFX/WCF.
ConnectRequest reaches the server's operation handler. Direct-port-808
Connect now returns a server-side fault (operation invocation
error from the placeholder DH key) rather than TCP RST. With a real
DH key, asb-subscribe gets all the way to "response is missing
required field ServicePublicKey/Data" — meaning our Connect request
processed end-to-end, the server returned a ConnectResponse, and
the only remaining issue is in our response-body decoder.

Fixes:

1. **`XmlnsAttribute` (0x09) value is a RAW length-prefixed string,
   not a text record**. Per `[MC-NBFX]` §2.2.3, xmlns attribute
   values are `[length][bytes]`, NOT `[text-record-byte][value]`.
   Our F21 was emitting `aa <id>` for dict-static values which the
   receiver misparsed as a 0xAA-length string. Same fix applies to
   `ShortXmlnsAttribute` (0x08). Encoder now picks raw-string for
   `Chars` value, raw-int31 (via 0x0B) for `DictionaryStatic` value;
   decoder reads raw string in both code paths.

2. **xmlns:xsi + xmlns:xsd on `<s:Body>`**. WCF declares these
   namespaces on Body before opening the operation request element.
   Our envelope encoder now emits both as raw-string xmlns attrs
   right after `<s:Body>` opens. Required for `xsi:type` annotations
   that appear inside DataContract-serialised body fields.

Combined wire-byte impact (verified via asb-relay side-by-side
diff):

* All header bytes match .NET byte-for-byte through the entire
  `<s:Header>` section (Action / ConnectionValidator / MessageID
  via UniqueIdText / ReplyTo / To).
* `<s:Body>` xmlns:xsi + xmlns:xsd declarations match .NET.
* `<ConnectRequest>` opens identically.
* `<ConnectionId>` / `<ConsumerPublicKey>` / `<Data>` element names
  match.
* The only known remaining diff in the request: .NET emits
  `xmlns="http://asb.contracts.data/20111111"` on the inner
  `<Data>` element (the PublicKey class's XmlType namespace);
  we don't. Likely an issue but apparently non-fatal — the server
  processed our request successfully past this point.

Live status:
* Direct port-808 connect with real DH key: server returns
  "response is missing required field ServicePublicKey/Data" —
  meaning we sent a valid Connect, server replied with a
  ConnectResponse, but our decoder can't find the field. Next
  iteration is response-side decode work.

Workspace: 702 tests pass; clippy + fmt clean.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 15:57:31 -04:00
Joseph Doherty c2222b16b0 [M5] mxaccess-asb-nettcp/asb: F21 short forms + EndElement fix + UniqueIdText
Three NBFX-spec corrections discovered by diffing our wire output
against the .NET probe's capture:

1. **EndElement is 0x01, NOT 0x00**. Our F21 had this wrong since the
   first iteration. Our round-trip tests passed because encode and
   decode used the same wrong value, but interop with WCF's parser
   silently failed (TCP RST on every request). Fixed by changing
   `REC_END_ELEMENT` to 0x01 — all 702 tests pass on the new value.

2. **Single-letter prefix short forms**. WCF uses
   `PrefixDictionaryElement_<a-z>` (records 0x44-0x5D) and
   `PrefixDictionaryAttribute_<a-z>` (records 0x0C-0x25) for
   single-character prefixes. Our F21 always used the long forms
   (0x43 prefix-string + dict-id, etc.). The encoder now emits the
   short form when the prefix is a single ASCII lowercase letter; the
   decoder accepts both. New `prefix_letter_offset(prefix)` helper.

3. **`DictionaryXmlnsAttribute` (0x0B)** for xmlns:prefix declarations
   whose value is a static-dict id. The long form (0x09 +
   prefix-string + text-record) is still emitted when the value is an
   inline string, but for `xmlns:s="...soap-envelope"` (dict id 4) we
   now emit the short `0b 01 73 04` form WCF uses.

4. **UniqueIdText (0xAC)** added to `NbfxText` enum + encode/decode.
   WCF emits `<a:MessageID>` as a UniqueIdText carrying the 16 raw
   UUID bytes (NOT the `urn:uuid:...` text form). Updated
   `encode_envelope` to use this for MessageID.

Combined wire-byte impact: our envelope body section now matches the
.NET probe byte-for-byte through `<a:Action>`, `<h:ConnectionValidator>`,
`<a:MessageID>` (UniqueId), `<a:ReplyTo>`, `<a:To>`, and `<s:Body>`.
The trailing `01 01 01 01` = 4 EndElements is now the correct
record byte. Tests pass (702 total).

Live status: still TCP RST after the SizedEnvelope. Remaining
unknown is in the body section — the .NET capture shows xmlns:xsi /
xmlns:xsd declarations on the operation-specific request element
(ConnectRequest etc.) that we don't emit, plus possibly different
field encoding inside ConnectRequest. Next iteration will re-capture
through the relay and diff our body bytes against the new
.NET-byte-equivalent we now produce.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 15:48:03 -04:00
Joseph Doherty 2867310817 [M5] mxaccess-asb: WCF binary message header (action+to dict pre-pop)
Adds the binary header block that WCF prepends to SizedEnvelope
payloads. Reverse-engineered from .NET probe wire bytes captured via
asb-relay.

Wire form (per the .NET capture analysis in the previous commit):
```
[outer length, multibyte-int31]
  [string-1 length, multibyte-int31] [UTF-8 bytes]   ← dict id 1 (action)
  [string-2 length, multibyte-int31] [UTF-8 bytes]   ← dict id 3 (to)
[NBFX <s:Envelope>...]
```

Inside the NBFX envelope, `<a:Action>` and `<a:To>` reference the
pre-pop strings via `DictionaryText 0xAA {odd-id}` instead of inlining
their values. The header strings get assigned odd dict ids
(1, 3, 5, ...); even ids stay reserved for the [MC-NBFS] static dict.

Encode side:
* `encode_envelope` now emits header [action, to] before NBFX. `to_uri`
  defaults to empty string when None — caller-supplied `with_to(uri)`
  is the supported path.
* AsbClient's `send_envelope` and `send_envelope_one_way` auto-fill
  `to_uri` from `self.via_uri` when not set.
* New private `encode_binary_header(strings)` helper.

Decode side:
* New `parse_binary_header_prefix(input)` heuristically detects + parses
  the header (look for plausible NBFX element record byte 0x40-0x77 at
  the offset implied by the outer length).
* New `resolve_with_header(text, dynamic, header)` resolves
  `DictionaryText` with odd id by indexing into header.strings; even
  ids fall through to static-dict lookup as before.

Tests pass (72) — round-trip envelope → bytes → envelope recovers
action through the new dict-id resolution path.

Live status: this commit gets us further but the connect SOAP
envelope still TCP-RSTs at SMSvcHost. The remaining delta vs the .NET
capture is structural NBFX optimisation: .NET uses single-letter
prefix-element/attribute records (0x44-0x77 PrefixDictionaryElement
_<a-z>, 0x0C-0x25 PrefixDictionaryAttribute_<a-z>, 0x0B
DictionaryXmlnsAttribute) while our F21 encoder always uses the long
forms (0x43 prefix-string + name-dict-id, etc.). Logically
equivalent but WCF's parser likely strict on which form it accepts.

Next iteration will add short-form encoding to F21 for single-letter
prefixes (s:, a:, h:, i:) which covers every namespace prefix in our
envelope.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 15:40:59 -04:00
Joseph Doherty d4ee5f3a18 [M5] examples: asb-relay TCP middleman for live wire-byte capture
Listens on MX_RELAY_LISTEN (default 127.0.0.1:8088) and forwards to
MX_RELAY_UPSTREAM (default 127.0.0.1:808 — AVEVA's NetTcpPortSharing
SMSvcHost listener). Hex-dumps every byte both directions to stderr
with C->S / S->C tags + per-direction offset prefixes.

Usage:
  $env:MX_RELAY_LISTEN = '0.0.0.0:8088'
  .\rust\target\debug\examples\asb-relay.exe 2> relay.log
  # then in another shell:
  dotnet run --project src\MxAsbClient.Probe -c Release -- `
    '--endpoint=net.tcp://desktop-6jl3kko:8088/ASBService/Default_ZB_MxDataProvider/IDataV2'

Tested against the live AVEVA install on this box — captured a
620-byte client→server exchange including the full .NET probe's
preamble, SizedEnvelope, and End record. The capture surfaced one
critical missing piece in our wire format:

**WCF binary message framing prepends Action + To strings out-of-band**
before the actual NBFX SOAP envelope. The .NET probe's envelope
payload begins:

  74 27 [39 bytes "http://asb.contracts/20111111:connectIn"]    ← Action
  4b    [75 bytes "net.tcp://desktop-6jl3kko:8088/.../IDataV2"]  ← To
  56 02 ...                                                      ← <s:Envelope>

The 0x74 / 0x4b prefix bytes appear to be WCF-internal framing that
stores Action and To headers OUT of the SOAP envelope as a binary
optimization. Our F25 envelope encoder doesn't emit this — it goes
straight to `<s:Envelope>` (which the probe captured as `56 02 ...`
PrefixDictionaryElement_s + dict id 2). This is likely why the
server fault'd at AddressFilter mismatch in the previous iteration.

Note: when going through the relay, the .NET probe's `:8088` port
appears in the To URL inside the binary header, which doesn't match
the registered service URL on SMSvcHost — so this exact relay setup
returns the AddressFilterMismatch fault. The capture is still
valuable (we see what bytes WCF emits for our action/header
structure). For a fault-free dispatch, we'd need to:
* rewrite the binary header's port (0x4b length / URL bytes) at
  the relay, OR
* listen on port 808 directly (requires stopping SMSvcHost), OR
* run an admin-elevated Wireshark/Npcap loopback capture.

Cleanup: dotnet probe must use `--endpoint=URL` (single arg with `=`),
not space-separated; the probe's GetArg helper splits on `=`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 15:27:54 -04:00
Joseph Doherty 3b09297b27 [M5] live-probe iteration 1 — major wire-byte reconciliation fixes
First live-test cycle against AVEVA on this box. Comparing the .NET
probe's `--dump-messages` XML output against our NBFX-encoded
envelope surfaced six structural bugs in the F25 envelope/operations
layer. All fixed; tests passing (702 workspace).

Fixes (all backed by the .NET dump as ground truth):

1. **`mustUnderstand` attribute name** — NBFS dict id was 116
   (`MustUnderstand`, capital-M, a different SOAP token); SOAP 1.2
   spec uses lowercase `mustUnderstand` at id 0. Sending the wrong
   one triggered a WCF parse fault that surfaced as TCP RST.

2. **Missing `<a:MessageID>` header** — WCF's default binding
   requires MessageID for two-way operations. We now auto-generate
   `urn:uuid:<v4>` per envelope via a small inline `make_random_uuid_v4`
   helper (no `uuid` crate dep).

3. **Missing `<a:ReplyTo>` anonymous header** — WCF's
   BinaryMessageEncoder always emits `<a:ReplyTo><a:Address>...
   addressing/anonymous</a:Address></a:ReplyTo>` for two-way ops.

4. **ConnectionValidator field names + namespace** — we were
   emitting PascalCase `<ConnectionId>` etc. .NET's WCF
   DataContractSerializer uses the private backing-field names
   (`<connectionIdField xmlns="...ASBContract">guid</connectionIdField>`)
   per `[DataMember(Name = "fooField")]`. Added the
   `xmlns:i="...XMLSchema-instance"` declaration WCF emits
   alongside (even when no `i:nil` is used). Decoder now accepts
   both PascalCase (legacy tests) and DataContract field names.

5. **`<ASBIData>` over-wrapping** — we were emitting
   `<Items><ASBIData>{bytes}</ASBIData></Items>`. .NET's
   `AsbDataCustomSerializer.WriteStartObject` (`AsbContracts.cs:
   1561-1572`) REPLACES the field's outer element with `<ASBIData>`
   directly — there's no `<Items>` wrapper on the wire. Fixed by
   collapsing `BodyField::AsbiDataElement` to emit just `<ASBIData>`
   without the named outer element. The `name` field is retained
   for self-documentation.

6. **`collect_asbidata_payloads` API** — was keyed by field name
   (`Status` / `Values`); now positional (`payloads[0]`,
   `payloads.get(1)`) since the wrapper element is gone. All seven
   response decoders updated.

Plus tooling for the live-probe loop:
* `tools/Get-AsbPassphrase.ps1` — DPAPI loader that auto-discovers
  the solution name + reads the sharedsecret + decrypts it. Sets
  $env:MX_ASB_PASSPHRASE / MX_ASB_HOST / MX_ASB_VIA / MX_LIVE.
  Lowercase via-host (WCF SMSvcHost is case-sensitive on the URL
  host segment).
* `examples/asb-preamble-probe.rs` — diagnostic that connects,
  runs the preamble, captures the PreambleAck, then sends a
  synthetic ConnectRequest and dumps both directions as hex. Used
  to bisect the wire-byte deltas above.
* `examples/asb-subscribe.rs` port default fixed (5074 → 808 —
  WCF's NetTcpPortSharing/SMSvcHost listener confirmed via
  Get-NetTCPConnection).

**Status**: preamble + PreambleAck round-trip works end-to-end
against the live AVEVA install (verified via probe). The
post-preamble Connect SOAP envelope still gets TCP RST'd — the six
structural fixes above are necessary but not yet sufficient. Next
iteration needs binary wire capture (Wireshark + Npcap loopback,
or a TCP-relay middleman) to compare the .NET probe's BinaryMessageEncoder
output byte-for-byte with ours and find the remaining delta(s).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 15:06:48 -04:00
Joseph Doherty 4ebfd8e3a3 [M5] tools: Get-AsbPassphrase.ps1 — DPAPI loader for live-probe env
Reads the ASB solution shared secret from the local Windows registry
(HKLM\SOFTWARE\Wow6432Node\ArchestrA\ArchestrAServices\<solution>\
sharedsecret) and DPAPI-decrypts it with the canonical "wonderware"
entropy + LocalMachine scope, mirroring `AsbRegistry.cs:21-41`.

Auto-discovers:
  $env:MX_LIVE             = "1"
  $env:MX_ASB_HOST         = $env:COMPUTERNAME
  $env:MX_ASB_SOLUTION     = (read from DefaultASBSolution)
  $env:MX_ASB_GALAXY_NAME  = "ZB" (or -GalaxyName param)
  $env:MX_ASB_VIA          = net.tcp://<host>/ASBService/Default_<galaxy>_MxDataProvider/IDataV2
  $env:MX_ASB_PASSPHRASE   = (DPAPI-decrypted plaintext, never printed unless -Show)

Important wiring detail flagged inline: the system-wide ArchestrA
solution name (`Archestra_<HOST>`, source of the sharedsecret) is
DIFFERENT from the per-Galaxy MxDataProvider service segment
(`Default_<galaxy>_MxDataProvider`) that the WCF endpoint URL
targets. Both live under the same registry root but only the former
is owned by ArchestrA; the latter is what serves IASBIDataV2 per
the .NET probe's hardcoded default URL at
`src/MxAsbClient.Probe/Program.cs:5`.

Tested via dry-run on this box: `Archestra_DESKTOP-6JL3KKO` resolves
as the solution, 390 protected bytes decrypt to an 80-char
passphrase, and the assembled VIA URL matches the .NET probe's
default verbatim.

Hard rules:
* Plaintext passphrase NEVER printed unless -Show is explicit.
* Dot-source so env vars persist in the calling pwsh session.
* Caller account must be authorised against the LocalMachine-scope
  DPAPI blob (typically: any local Administrator).

Usage:
  . .\tools\Get-AsbPassphrase.ps1
  cargo run -p mxaccess --example asb-subscribe

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 14:45:43 -04:00
Joseph Doherty e3baeb8803 [M5] mxaccess: F26 step 3 — AsbSession high-level cheap-clone async API
Adds the public high-level entry point for the ASB transport.
Parallel to the NMX-shaped `Session` (rather than unified) because
NMX's `Session` carries CallbackExporter / callback router task /
recovery broadcast / INmxService2 mutex orchestration that has no
ASB analogue — and ASB's request/response loop over a single TCP
stream maps naturally to `Mutex<AsbClient>` that would be foreign
to NMX. Two paths converge at the consumer-facing API but stay
distinct at the orchestration layer.

Struct shape:
```rust
pub struct AsbSession { inner: Arc<AsbSessionInner> }
struct AsbSessionInner {
    transport: Mutex<AsbTransport<TcpStream>>,
    connect_response: ConnectResponse,
}
```

`Clone + Send + Sync` — clones share state through `Arc`, lock
serialises operations. Compile-time `assert_clone_send_sync` test
guards the contract.

API:
* `connect(endpoint, passphrase, crypto_parameters, via_uri,
  connection_id)` — full bring-up (TCP + preamble + DH handshake).
* `from_transport(transport, connect_response)` — build from an
  existing transport (tests, custom transports).
* `connect_response()` — surface the negotiated lifetime /
  Apollo flag.

Operation methods forward to AsbClient:
* `register_items` / `unregister_items` / `read` / `write`
* `keep_alive` / `disconnect`
* `create_subscription` / `add_monitored_items` / `publish` /
  `delete_monitored_items` / `delete_subscription`
* `publish_write_complete`

ClientError → mxaccess::Error mapping via
`ConnectionError::TransportFailure` (consistent with F26 step 2).

1 new test:
* `asb_session_is_clone_send_sync` — compile-time trait-bound
  assertion.

Workspace: 702 tests pass.

Stubbed for next F26 iteration:
* `Stream<Item = MonitoredItemValue>` subscription handle that
  internally drives a publish-loop. Today consumers loop
  `publish().await` themselves.
* Recovery / reconnect policy — needs a captured ASB-side
  disconnect to inform the retry strategy.
* Live-probe wire-byte reconciliation against the WCF DataContract
  XML serializer's actual output.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 13:23:59 -04:00
Joseph Doherty 9876b4ebb4 [M5] mxaccess-asb: F25 step 10 — PublishWriteComplete + DeleteMonitoredItems
Closes out the F25 operation matrix. AsbClient now wraps every
IASBIDataV2 operation:

  Lifecycle:    connect / disconnect / send_end / send_preamble / keep_alive
  Items:        register_items / unregister_items / read / write
  Subscriptions:create_subscription / add_monitored_items / publish
                / delete_monitored_items / delete_subscription
  Write cb:     publish_write_complete

API additions:
* `build_publish_write_complete_request_body()` — empty wrapper
  per `AsbContracts.cs:204-205`. No body fields beyond inherited
  ConnectionValidator.
* `decode_publish_write_complete_response` — returns count of
  `<ItemWriteComplete>` elements observed. Per-element decode
  (Status + WriteHandle) deferred to a later iteration since
  ItemWriteComplete is regular WCF DataContract rather than the
  binary fast-path.
* `build_delete_monitored_items_request_body` — same MonitoredItem
  shape as AddMonitoredItems but omits RequireId per `cs:268-277`.
* `decode_delete_monitored_items_response` — per-item Status array.
* Client wrappers: `publish_write_complete()`,
  `delete_monitored_items(subscription_id, items)`.

6 new tests:
* `publish_write_complete_body_is_empty_wrapper` — body shape.
* `publish_write_complete_response_counts_item_write_complete_elements`
  — counts 2 / 0 elements correctly.
* `publish_write_complete_response_zero_when_no_callbacks`.
* `delete_monitored_items_body_carries_subscription_id_and_items`.
* `delete_monitored_items_body_omits_require_id_field`.
* `delete_monitored_items_response_round_trip`.

Workspace: 701 tests pass (was 695, +6).

Stubbed for future iterations:
* ItemWriteComplete per-element decode (Status + WriteHandle) once
  a live capture confirms the WCF DataContract XML wire form.
* Optional MonitoredItem fields (Active / TimeDeadband /
  ValueDeadband / UserData) — same wire-byte uncertainty.
* Optional WriteValue fields (Comment / Timestamp / etc.).

All wire-byte caveats trace back to live-probe reconciliation
against an actual AVEVA VM.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 13:17:01 -04:00
Joseph Doherty 0441a2e693 [M5] mxaccess-asb: F25 step 9 — Write operation
Closes the highest-value remaining IASBIDataV2 op. With Write landed,
the read+write+subscribe path is functionally complete in-memory.

API additions:
* `MinimalWriteValue { value: AsbVariant }` — carries just the Value
  payload. Optional ArrayElementIndex / Comment / HasQT / Status /
  Timestamp fields are deferred to a later iteration once a live
  capture confirms the WCF DataContract XML form.
* `build_write_request_body(items, values, write_handle)` per
  `AsbContracts.cs:181-194`:
  ```xml
  <WriteBasicRequest xmlns="urn:msg.data.asb.iom:2">
    <Items><ASBIData>{ItemIdentity[] binary}</ASBIData></Items>
    <Values>
      <WriteValue><Value><ASBIData>{Variant binary}</ASBIData></Value></WriteValue>
      ...
    </Values>
    <WriteHandle>{i32}</WriteHandle>
  </WriteBasicRequest>
  ```
  Items array uses the IAsbCustomSerializableType binary fast-path;
  each Value's inner Variant also uses the fast-path. WriteHandle is
  an Int32 (opaque correlation echoed in PublishWriteComplete).
* `decode_write_response` — per-item Status array (mirrors the
  unregister/register pattern).
* `AsbClient::write(items, values, write_handle)` — thin wrapper.

4 new tests:
* `write_request_body_carries_items_values_and_write_handle` — body
  shape sanity (WriteHandle = 7 Int32, WriteValue element present).
* `write_request_body_pairs_items_and_values_arrays` — 2 items + 2
  values produces 2 WriteValue elements.
* `write_response_round_trips_status_array` — Status decode.
* `write_response_missing_status_fails` — graceful MissingField
  error.

Workspace: 695 tests pass (was 691, +4).

Stubbed for next F25 iterations:
* `PublishWriteComplete` — empty request, `ItemWriteComplete[]`
  response.
* `DeleteMonitoredItems` — mirrors AddMonitoredItems pattern.
* Optional WriteValue fields (Comment / Timestamp / etc.) once a
  live capture confirms the wire-byte layout.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 13:04:11 -04:00
Joseph Doherty b543eb1f84 [M5] mxaccess-asb: F25 step 8 — subscription operations
CreateSubscription / AddMonitoredItems / Publish / DeleteSubscription.
Completes the IASBIDataV2 read-and-subscribe path; remaining ops
(Write/PublishWriteComplete/DeleteMonitoredItems) are mechanical
extensions of the same pattern.

Contracts:
* `MonitoredItemValue` codec (IAsbCustomSerializableType binary
  fast-path: ItemIdentity + RuntimeValue + AsbVariant per
  `AsbContracts.cs:1064-1068`) with array codec (4-byte int32
  count + per-element body, mirrors `WriteArrayToStream` at
  `cs:1095-1103`).

Request builders:
* `build_create_subscription_request_body(max_queue_size,
  sample_interval)` — primitive fields per `cs:215-223`.
* `build_delete_subscription_request_body(subscription_id)` —
  primitive field per `cs:232-237`.
* `build_publish_request_body(subscription_id)` — primitive field
  per `cs:287-292`.
* `build_add_monitored_items_request_body(subscription_id, items,
  require_id)` — minimal MonitoredItem shape (Item +
  SampleInterval + Buffered). Full optional-field set
  (Active/TimeDeadband/ValueDeadband/UserData) deferred to a later
  iteration once a live capture confirms the WCF DataContract
  XML wire form.

Response decoders:
* `decode_create_subscription_response` — single int64
  SubscriptionId field. Decoder accepts Int64Text, Int32Text,
  Zero/One, or numeric-string Chars (covers all WCF binary
  numeric encodings).
* `decode_add_monitored_items_response` — Status array +
  ItemCapabilities-presence flag (mirrors RegisterItemsResponse).
* `decode_publish_response` — Status array + Values
  (MonitoredItemValue) array.

`BodyField::Int64Element` variant added for the primitive
SubscriptionId / MaxQueueSize / SampleInterval fields. `uint64`
helper casts to i64 (covers proven value range; if ulong > i64::MAX
ever appears we'll add UInt64Text to F21's NbfxText enum).

Client wrappers (4 new methods on AsbClient):
* `create_subscription(max_queue_size, sample_interval)`
* `add_monitored_items(subscription_id, items, require_id)`
* `publish(subscription_id)`
* `delete_subscription(subscription_id)`

11 new tests cover:
* MonitoredItemValue round-trip + array round-trip.
* CreateSubscription request body shape (Int64 payloads).
* CreateSubscription response decoder via Int64Text.
* CreateSubscription response decoder via Chars text fallback.
* CreateSubscription response missing-field error.
* AddMonitoredItems body carries SubscriptionId + MonitoredItem
  elements.
* AddMonitoredItems response Status round-trip.
* DeleteSubscription body carries SubscriptionId.
* Publish request body shape.
* Publish response Status + Values round-trip.

Workspace: 691 tests pass (was 680, +11). The asb-subscribe example
can now do create_subscription → add_monitored_items → publish-loop
→ delete_subscription once wire-byte reconciliation against a live
capture confirms the MonitoredItem XML shape.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 12:57:59 -04:00
Joseph Doherty c6570dcd06 [M5] mxaccess: asb-subscribe example exercises full F25+F26 stack
Replaces the M5 placeholder with an actual end-to-end demo:

  AsbTransport::connect (TCP + preamble + DH handshake)
  → register_items
  → read
  → disconnect
  → send_end

Until F25 subscription ops (CreateSubscription / AddMonitoredItems
/ Publish-callback) land, the example is a Read-loop demo. Once
subscription ops arrive, it gains a Publish-loop and lives up to
its name.

Env vars (analogous to the NMX `connect-write-read` example):
  MX_LIVE — non-empty enables the live path
  MX_ASB_HOST — endpoint host[:port]; defaults port 5074
  MX_ASB_PASSPHRASE — solution shared secret
  MX_ASB_VIA — `net.tcp://...` URI (optional; derived from MX_ASB_HOST
    when omitted)
  MX_TEST_TAG — tag reference (default `TestChildObject.TestInt`)

Without MX_LIVE: prints the `Setup-LiveProbeEnv.ps1` hint and exits
cleanly with status 0 — the same pattern every other live example
follows.

Connection-id is a fresh 16-byte random buffer (matches .NET's
`Guid.NewGuid()` at `MxAsbDataClient.cs:36`).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 12:34:24 -04:00
Joseph Doherty 14bb5297a8 [M5] mxaccess: F26 step 2 — AsbTransport::connect TCP+preamble+handshake
Adds the `tokio::net::TcpStream`-specialised async constructor that
owns the full transport-bring-up sequence:

  TCP connect → NMF preamble → DH Connect → AuthenticateMe (one-way)

Signature:
```
async fn connect(
    endpoint: SocketAddr,
    passphrase: &str,
    crypto_parameters: &CryptoParameters,
    via_uri: impl Into<String>,
    connection_id: [u8; 16],
) -> Result<(AsbTransport<TcpStream>, ConnectResponse), Error>
```

Returns the `ConnectResponse` alongside the transport so callers can
inspect the negotiated `connection_lifetime` (the `:V2` suffix
toggles Apollo vs Baktun encryption — see F23).

New error variant: `ConnectionError::TransportFailure { detail }`
covers all transport-bring-up failure modes (NMF / NBFX / auth /
peer Fault). The underlying error type is intentionally erased to
keep the public taxonomy small; `detail` carries the Display
representation.

Errors are mapped at the AsbClient / AuthError boundary via private
`map_client_error` / `map_auth_error` helpers.

1 new test:
* `connect_to_unreachable_endpoint_surfaces_connection_error` — TCP
  connect to 127.0.0.1:1 (TCPMUX-reserved) cleanly errors without
  panicking. Smoke test for the constructor signature + error path.

Stubbed for F26 step 3:
* `Session::connect_asb` constructor — the SessionInner refactor to
  host both NMX + ASB transports under one struct is heavier than
  this iteration's scope.
* Operation-routing layer that maps ASB result types (ItemStatus,
  RuntimeValue) back to mxaccess types (MxStatus, DataChange,
  MxValue).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 12:14:16 -04:00
Joseph Doherty 8a0f92b6bc [M5] mxaccess: F26 step 1 — AsbTransport bridges AsbClient into Transport trait
First slice of F26. Bridges F25's working AsbClient into the M0
`mxaccess::Transport` trait that Session uses to discriminate
operations across NMX and ASB transports.

API additions:
* `mxaccess::AsbTransport<T>` — generic over the same
  AsyncRead+AsyncWrite+Unpin+Send+Sync+'static bound that AsbClient
  takes. Owns an AsbClient and exposes it via `client_mut()` /
  `into_client()`.
* `impl Transport for AsbTransport<T>`:
  - `capabilities()` — `buffered_subscribe = false`,
    `activate_suspend = false`, `operation_complete_frame = false`
    per `design/60-roadmap.md` M5 (no NMX-specific extensions on
    ASB).
  - `kind()` — `TransportKind::Asb`.

Path-dep wiring: `mxaccess` now imports `mxaccess-asb` +
`mxaccess-asb-nettcp` directly.

Compile-time `Send + Sync + 'static` assertion guards the
trait-bound contract.

2 new tests:
* `asb_transport_kind_is_asb`.
* `asb_transport_capabilities_disable_buffered_and_activate_suspend`.

Stubbed for F26 step 2:
* `Session::connect_asb` constructor that owns TCP open +
  preamble + DH handshake orchestration.
* Operation routing that maps ASB types (ItemStatus, RuntimeValue)
  back to mxaccess types (MxStatus, DataChange, MxValue).

Stubbed for F26 step 3:
* Subscription routing — Session::subscribe on ASB needs F25
  subscription operations (CreateSubscription / AddMonitoredItems
  / Publish), which are not yet implemented.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:57:20 -04:00
Joseph Doherty 1b1ee1e0b7 [M5] mxaccess-asb: F25 step 7 — Disconnect closes the session lifecycle
Mirrors `AsbContracts.cs:109-114` — same payload shape as
AuthenticateMe (Data + InitializationVector under
ConsumerAuthenticationData) but under the `<DisconnectRequest>`
wrapper. Sent one-way + signed (regular HMAC, no force) per
`AsbContracts.cs:22` (`IsOneWay = true`).

API additions:
* `build_disconnect_request_body(data, iv)` — NBFX token stream for
  the DisconnectRequest body.
* `AsbClient::disconnect()` — builds a fresh encrypted
  authentication-data blob via F23's `create_authentication_data()`
  (encrypts `local_pub || remote_pub` under the derived AES key
  with a fresh IV), wraps it in a DisconnectRequest, sends one-way
  signed.

2 new tests:
* `disconnect_request_carries_data_and_iv_under_correct_wrapper` —
  outer element name + Data/IV byte-payload order.
* `disconnect_writes_signed_one_way_envelope` — end-to-end via
  `tokio::io::duplex` peer; verifies the SizedEnvelope payload
  contains the `:disconnectIn` action string.

With Disconnect landed, AsbClient now covers the full session
lifecycle:
  send_preamble → connect → register_items / read / keep_alive
  / unregister_items → disconnect → send_end → stream shutdown

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:51:39 -04:00
Joseph Doherty 321b7963a4 [M5] mxaccess-asb: F25 step 6 — Connect/AuthenticateMe handshake
Critical-path piece that turns a fresh TCP stream into an
authenticated session. With this slice landed, an `AsbClient` can
now do `send_preamble().await? -> connect().await? -> register_items()`
end-to-end against a peer.

Operations API additions:
* `build_connect_request_body(connection_id, public_key)` — first op
  on a fresh session. **Unsigned** (no ConnectionValidator header)
  because the authenticator hasn't received the service key yet.
  Wire shape: `<ConnectRequest xmlns="…messages/20111111">
    <ConnectionId>{guid-text}</ConnectionId>
    <ConsumerPublicKey><Data>{pubkey-bytes}</Data></ConsumerPublicKey>
  </ConnectRequest>` per `AsbContracts.cs:78-86`.
* `build_authenticate_me_request_body(data, iv)` — second op,
  **one-way + signed with `forceHmac=true`** per `MxAsbDataClient.cs
  :106-111`. Carries the encrypted `local_pub || remote_pub` blob
  produced by F23's `create_authentication_data()`.
* `ConnectResponse { service_public_key, service_authentication_data,
  connection_lifetime }` + `AuthenticationDataBytes { data, iv }`.
* `decode_connect_response(body, dict)` — extracts ServicePublicKey
  (required), optional ServiceAuthenticationData, optional
  ConnectionLifetime. The lifetime's `:V2` suffix is what F23
  inspects to toggle Apollo (raw AES) vs Baktun (deflate-then-AES)
  encryption.

Client API addition:
* `AsbClient::connect()` — orchestrates the full handshake:
  1. Build + send ConnectRequest (unsigned) carrying our DH public
     key + connection-id GUID.
  2. Decode ConnectResponse.
  3. `authenticator.accept_connect_response(...)` — feeds the
     service public key + lifetime into F23 so it derives the
     shared secret and picks Apollo/Baktun.
  4. `authenticator.create_authentication_data()` — encrypts
     `local_pub || remote_pub` under the derived AES key.
  5. Send AuthenticateMeRequest (one-way, signed with HMAC-SHA1
     forced).
  Returns the `ConnectResponse` so callers can inspect the
  negotiated connection lifetime.

6 new tests:
* ConnectRequest carries hyphenated GUID + raw public-key bytes.
* AuthenticateMe carries Data + IV bytes in order.
* ConnectResponse round-trip with all optional fields populated.
* ConnectResponse round-trip without optional fields.
* ConnectResponse decoder surfaces MissingField when
  ServicePublicKey is absent.
* End-to-end client::connect handshake via `tokio::io::duplex`
  peer that synthesises a ConnectResponse using bob's public key
  (so DH shared-secret derivation actually works) and drains the
  AuthenticateMe one-way SizedEnvelope.

Wire-byte caveat documented inline: WCF XML serialization may add
`xsi:type` attributes / distinct namespaces around <PublicKey> /
<AuthenticationData>; this builder ships the simplest plausible
shape and the live-probe iteration will reconcile.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:47:35 -04:00
Joseph Doherty 9b8133f725 [M5] mxaccess-asb: F25 step 5 — KeepAlive + Read + one-way client ops
Extends AsbClient with one-way operation support (`IsOneWay = true`
in IASBIDataV2) plus the KeepAlive and Read operations.

Client API additions:
* `send_envelope_one_way(env)` — frames in SizedEnvelope, writes,
  returns immediately. No response read. Mirrors WCF's IsOneWay
  semantics for KeepAlive / Disconnect / AuthenticateMe.
* `send_signed_envelope_one_way(action, body, force_hmac)` —
  one-way variant that runs the body through F23's authenticator
  signing path so the ConnectionValidator header is attached.
* `keep_alive()` — sends an empty `KeepAliveRequest` with default
  signing. Used to keep the channel alive past the WCF inactivity
  timeout (30s default at `MxAsbDataClient.cs:683`).
* `read(items)` — sends a signed Read envelope, decodes
  ReadResponse with both Status and Values arrays.

Operations API additions:
* `build_keep_alive_request_body()` — empty wrapper element +
  asb.contracts.messages namespace. Mirror of `AsbContracts.cs:117`
  (`public sealed class KeepAlive : ConnectedRequest;`).
* `ReadResponse { status: Vec<ItemStatus>, values: Vec<RuntimeValue> }`
  per `AsbContracts.cs:169-179`.
* `decode_read_response(body_tokens)` — pulls both ASBIData
  payloads, decodes Status as ItemStatus[], decodes Values via
  `decode_runtime_value_array` (4-byte int32 count + per-element
  `RuntimeValue::decode` from F24).

5 new tests:
* KeepAlive body shape (empty wrapper, correct namespace).
* ReadResponse decoder round-trip with both Status and Values.
* ReadResponse decoder graceful handling when Values is absent
  (returns empty vec).
* End-to-end client::keep_alive — peer drains SizedEnvelope but
  doesn't respond; client returns Ok().
* End-to-end client::read — peer responds with synthetic
  ReadResponse, client recovers Values[0].timestamp_binary == 1234
  and Values[0].status round-trip.

Stubbed for next F25 iterations:
* AsbClient::connect — DH Connect + AuthenticateMe handshake. Needs
  ConnectRequest / ConnectResponse builders (regular WCF XML, not
  the IAsbCustomSerializableType fast-path).
* Write / PublishWriteComplete / CreateSubscription /
  AddMonitoredItems / Publish / Disconnect operation wrappers.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:42:39 -04:00
Joseph Doherty 1e59249662 [M5] mxaccess-asb: F25 step 4 — AsbClient async network loop
The first slice of F25 that actually moves bytes across a transport.
Wraps every M5 framing layer (F19-F25.3) into a single async client
generic over `AsyncRead + AsyncWrite + Unpin + Send`. Tested in-memory
via `tokio::io::duplex` — no live ASB endpoint required.

API:
* `AsbClient::new(stream, authenticator, via_uri)` — wraps a Tokio
  transport + F23 authenticator into a ready client.
* `send_preamble()` — writes the canonical preamble (Version 1.0 →
  Duplex → Via → BinaryWithDictionary → PreambleEnd) and reads the
  peer's PreambleAck. Surfaces Fault as `ClientError::Fault(msg)`.
* `send_envelope(env)` — frames `SoapEnvelope` in a SizedEnvelope NMF
  record, writes, reads the response SizedEnvelope, decodes back to
  `DecodedEnvelope`.
* `send_signed_envelope(action, body, force_hmac)` — calls F23
  authenticator's `sign` on the unsigned body bytes, attaches a
  ConnectionValidator header (base64'd MAC + IV), sends.
* `register_items` / `unregister_items` — thin per-operation wrappers
  threading body builder + response decoder.
* `send_end()` — writes record 0x07 + shutdowns the stream.

Async record reader: streaming decode of the multibyte-int31 length
prefix for SizedEnvelope (0x06) / Fault (0x08), plus a fallback path
for Version / Mode / KnownEncoding / etc.

`ClientError` covers I/O, NMF, NBFX, Envelope, Operation, Auth, plus
PreambleNotSent / AlreadyClosed / Fault / PeerClosed /
UnexpectedRecord guards.

6 new tests via in-memory `tokio::io::duplex`:
* Preamble round-trip with synthetic peer returning PreambleAck.
* Fault propagation through preamble exchange.
* End-to-end RegisterItems request → response with a peer that
  drains preamble, replies PreambleAck, drains the SizedEnvelope,
  responds with a synthetic RegisterItemsResponse body containing a
  binary-encoded ItemStatus array. Client decodes and asserts the
  recovered ItemIdentity name.
* `send_envelope` before preamble fails with PreambleNotSent.
* `send_end` writes record 0x07 to the wire.
* PreambleMode re-export keeps shape parity with `nmf::NmfMode`.

Known limitation: the signing path currently hashes the NBFX-encoded
body; .NET hashes the XML-text `request.ToXml()`. Functionally
present (validator built and attached) but MAC bytes won't match
.NET's MAC for the same payload until the live-probe iteration
reconciles which canonical form to sign.

Stubbed for next F25 iteration:
* `AsbClient::connect` — DH `Connect` + `AuthenticateMe` handshake
  flow. Needs ConnectRequest/Response builders (regular WCF XML, not
  the IAsbCustomSerializableType fast-path) and the
  `AsbAuthenticator::create_authentication_data` integration.
* Read / Write / Subscription operation wrappers.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:37:48 -04:00
Joseph Doherty c4bf0a0a04 [M5] mxaccess-asb: F25 step 3 — response decoders + Read request body
Foundation for response decoding. Adds:

* `contracts::ItemStatus` — ports `AsbContracts.cs:639-722`. Wire
  layout matches `WriteToStream` exactly: Item (ItemIdentity binary)
  → Status (AsbStatus binary, from F24) → ErrorCode (u16) →
  ErrorCodeSpecified (u8 bool). Note this is NOT the DataMember
  declaration order — the binary serialiser hand-picks Item-first.

* `encode_item_status_array` / `decode_item_status_array` — same
  4-byte int32 count + per-element WriteToStream pattern as the
  ItemIdentity array codec.

* `operations::collect_asbidata_payloads(tokens, field_name)` — walks
  an NBFX token stream and pulls out `<{field}><ASBIData>{Bytes}
  </ASBIData></{field}>` payload bytes. Returns Vec<Vec<u8>> because
  some response shapes (ReadResponse) carry multiple ASBIData
  payloads (Status + Values).

* `decode_register_items_response` / `decode_unregister_items_response`
  — parse SOAP body NBFX tokens into typed RegisterItemsResponse /
  UnregisterItemsResponse. The optional ItemCapabilities array (XML-
  serialised, not binary) is recorded as a presence flag for now;
  decoding the individual ItemRegistration records is a follow-up.

* `build_read_request_body(items)` — simplest unary IASBIDataV2
  request, just `<ReadRequest xmlns="..."><Items><ASBIData>...
  </ASBIData></Items></ReadRequest>`.

* `OperationError` — typed error for response-decode failures
  (`MissingField { field }` and codec wraps).

9 new tests: ItemStatus round-trip (default + with id + with status
payload), ItemStatus array round-trip, RegisterItemsResponse
round-trip via synthetic body, ItemCapabilities presence detection,
UnregisterItemsResponse round-trip, multi-payload extraction (ReadResponse-
shape Status + Values), Read body shape correctness, MissingField
error when Status is absent.

Stubbed for next F25 iteration: Write / PublishWriteComplete /
CreateSubscription / AddMonitoredItems / DeleteMonitoredItems /
Publish builders, ReadResponse + WriteResponse decoders (need
WriteValue / RuntimeValue contract codecs), and the AsbClient
network loop.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:32:36 -04:00
Joseph Doherty a2b8989cbf [M5] mxaccess-asb: F25 step 2 — per-operation request body codecs
Adds the IAsbCustomSerializableType binary fast-path + per-operation
request-body NBFX-token builders. RegisterItems and UnregisterItems
now compose end-to-end through SoapEnvelope + encode_envelope to a
byte stream that round-trips back to the original ItemIdentity array.

Three pieces:

1. F21 NBFX gains `Bytes8/16/32` text records (records 0x9E/0xA0/0xA2
   plus +1 WithEndElement variants). WCF's `XmlDictionaryWriter.
   WriteBase64` emits these in binary form — not actual base64 text —
   so they're required for the `<ASBIData>` content.

2. `mxaccess-asb::contracts::ItemIdentity` ports `AsbContracts.cs:533-633`:
   * Wire layout: u16 kind + u16 reference_type +
     AsbBinary.WriteUnicodeString(Name) + AsbBinary.WriteUnicodeString
     (ContextName) + u64 Id + u8 IdSpecified.
   * `AsbBinary.WriteUnicodeString` per cs:1622-1633: u32 byte-length
     + UTF-16LE bytes; null/empty collapse to a 4-byte zero header.
   * `encode_item_identity_array` / `decode_item_identity_array`
     mirror `WriteArrayToStream` — 4-byte int32 count + each
     element's `WriteToStream` output. Per `AsbDataCustomSerializer`
     at cs:1583-1591.
   * `absolute_by_name(...)` convenience constructor matching
     `MxAsbDataClient.CreateAbsoluteItem` at cs:172-194.

3. `mxaccess-asb::operations` builds SOAP body NBFX token streams:
   * `build_register_items_request_body(items, require_id, register_only)`
     — RegisterItems contract per cs:119-143.
   * `build_unregister_items_request_body(items)` — UnregisterItems
     per cs:145-159.
   * Internal `BodyField` helper assembles the wire shape:
     `<RegisterItemsRequest xmlns="urn:msg.data.asb.iom:2">
        <Items><ASBIData>{Bytes(payload)}</ASBIData></Items>
        <RequireId>true|false</RequireId>
        <RegisterOnly>true|false</RegisterOnly>
      </RegisterItemsRequest>`

15 new tests cover:
* ItemIdentity round-trip (default, with id, unicode name).
* AsbBinary unicode-string null/empty/value semantics.
* Byte-layout pinning (21 bytes for default ItemIdentity, le-int32
  array count).
* ItemIdentity array round-trip.
* `<ASBIData>` Bytes record round-trip across NBFX widths
  (Bytes8/16/32 selected by length).
* RegisterItems body → SoapEnvelope → encode → decode → recover the
  ItemIdentity array end-to-end.
* RequireId / RegisterOnly Bool wire form.
* UnregisterItems body uses correct outer element name and omits
  the RegisterItems-only fields.

Stubbed for next F25 iteration: per-operation Read / Write /
PublishWriteComplete / CreateSubscription / AddMonitoredItems /
DeleteMonitoredItems / Publish builders, response decoders, and the
`AsbClient` network loop.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:24:19 -04:00
Joseph Doherty 25dbd8d3bd [M5] mxaccess-asb: F25 step 1 — SOAP envelope codec
First slice of F25. Provides the building blocks the per-operation
request/response codecs and the network loop will compose:

* `actions` module — IASBIDataV2 action strings (all 14 operations,
  verbatim from `AsbContracts.cs:14-58`).
* `ConnectionValidator` — SOAP header struct mirroring
  `AsbContracts.cs:65-117`. `from_signed(&SignedValidator)` converts
  F23's MAC + IV to base64 for the wire, matching .NET's
  `BinaryWriter`-via-`XmlSerializer` shape.
* `SoapEnvelope` + `encode_envelope` — assembles the NBFX token
  stream: `s:Envelope` → `s:Header` → `a:Action s:mustUnderstand="1"`
  → optional `h:ConnectionValidator` → `s:Body` → caller-supplied
  body tokens. Uses static-dictionary IDs for the SOAP/WS-Addressing
  tokens via F22's `lookup_static`.
* `decode_envelope` — pulls action + validator + body tokens back
  out of received bytes. Tolerant of header ordering.
* Mixed-endian GUID format/parse (`format_uuid` / `parse_uuid`) that
  mirrors .NET's `Guid.ToString("D")` byte order so connection-id
  round-trip matches the wire exactly.

9 new unit tests cover:
* Round-trip with and without validator.
* `from_signed` base64 encoding of MAC + IV.
* `format_uuid` produces the correct .NET-mixed-endian hex string.
* GUID round-trip through string formatter.
* Action string presence in the encoded byte stream.
* Decoder tolerance of envelopes without an Action header.
* Validator round-trip through full encode → decode.
* Lint-style guard that all 14 action constants are URIs ending `In`.

Stubbed for next F25 iteration: per-operation request/response
struct codecs (`ConnectRequest`, `RegisterItemsRequest`, etc.) +
`AsbClient` network loop.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:16:22 -04:00
Joseph Doherty 5f985588f7 [M5] mxaccess-asb-nettcp: F21 [MC-NBFX] binary XML token codec
Ports the proven subset of `[MC-NBFX]` to `mxaccess-asb-nettcp::nbfx`.

Token model: Element { prefix, name } / EndElement / Attribute /
DefaultNamespace / NamespaceDeclaration / Text. Element + attribute
names can be inline UTF-8, an `[MC-NBFS]` static-dictionary id (via
F22's `lookup_static`), or a per-session `DynamicDictionary` id.

Text records covered: Empty (0xA8), Zero (0x80), One (0x82), Bool
(0x84/0x86 + 0xB4), Int8 (0x88), Int16 (0x8A), Int32 (0x8C), Int64
(0x8E), Chars (0x98/0x9A/0x9C — width variant chosen automatically by
payload length), DictionaryText (0xAA — both static and dynamic refs).

`*WithEndElement` collapse is automatic: a `Text → EndElement` pair
encodes as the `+1` record byte (e.g. `EmptyTextWithEndElement = 0xA9`,
`TrueTextWithEndElement = 0x87`). The decoder splits the implicit
EndElement back out so consumers see the same token stream regardless
of which wire form was used.

Element variants covered: ShortElement (0x40), Element (0x41 with
prefix string), ShortDictionaryElement (0x42), DictionaryElement
(0x43). Prefix-letter family (0x44-0x77) deferred — emit the long
form for now.

Attribute variants covered: ShortAttribute (0x04), Attribute (0x05),
ShortDictionaryAttribute (0x06), DictionaryAttribute (0x07), plus
xmlns variants (0x08/0x09).

15 new unit tests cover the dynamic dictionary, every supported
element/attribute/xmlns/text record form (including round-trip),
explicit byte pinning for the collapse behavior, Chars width-variant
selection, unknown-record rejection, and truncated-payload rejection.

Records left for follow-up: Decimal, UniqueId, TimeSpan, Float/Double
text, DateTime text, Bytes8/16/32, QNameDictionary, the 0x0C-0x25
prefix-dict-attribute / 0x26-0x3F prefix-attribute / 0x44-0x77
prefix-element families. None of these are on the proven ASB path.

With F21 landed, the M5 framing + encoder layer (streams A+B+C+D and
the F24 codec) is complete. F25 (mxaccess-asb IASBIDataV2 client) and
F26 (Session over AsbTransport) remain.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:10:50 -04:00
Joseph Doherty 43c10a15ca [M5] mxaccess-asb-nettcp: F22 [MC-NBFS] static dictionary subset
Ports the curated subset of the `[MC-NBFS]` §2.2 static dictionary to
`mxaccess-asb-nettcp::nbfs`. Approximately 80 entries covering SOAP 1.2
envelope tokens, WS-Addressing 1.0 tokens, WS-RM, WS-Security,
WS-Trust/SecureConversation, XML Schema Instance primitives, plus the
common XML element / attribute names captured in
`analysis/proxy/mxasbclient-*` traces.

API:
* `STATIC_ENTRIES: &[StaticEntry]` — sorted-by-id table; one-line
  extension when wire captures show new IDs.
* `lookup_static(id) -> Option<&'static str>` — binary-search lookup
  for the F21 NBFX decoder.
* `position_of_static(value) -> Option<u32>` — `OnceLock`-cached
  reverse lookup for the F21 NBFX encoder.

Lookups outside the curated subset return `None`. The NBFX decoder
will surface that as a typed `UnknownStaticDictionaryId` error so the
caller knows to either extend the table or fall through to the
inline-string path. The full 487-entry table is bounded but tedious;
the deliberate subset keeps source size down while remaining
extensible.

ASB-specific contract strings (`http://ASB.IDataV2`,
`http://asb.contracts/20111111`, the IASBIDataV2 operation actions,
etc.) are intentionally **not** in the static dictionary — they live
in the per-session dynamic dictionary that the F21 NBFX codec builds
up via `DictionaryString` records.

6 unit tests cover monotonic-id invariant, known-id lookup,
unknown-id rejection, round-trip lookup consistency, and the
empty-string slot at id=142.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:06:11 -04:00
Joseph Doherty 9dfd1937c2 [M5] mxaccess-asb-nettcp: F20 [MS-NMF] .NET Message Framing record codec
Implements the 13 record types from `[MS-NMF]` §2.2 (Version, Mode, Via,
KnownEncoding, ExtensibleEncoding, Unsized/SizedEnvelope, End, Fault,
UpgradeRequest/Response, PreambleAck, PreambleEnd) over a `net.tcp` channel.

Includes the `Multibyte Int31` length codec (LEB128-style 7-bit groups
over a 31-bit unsigned range, max 5 bytes; rejects negative input and
overflow), plus an `encode_preamble` helper that emits the canonical ASB
connect record sequence (`Version 1.0 → Duplex → Via $uri →
BinaryWithDictionary → PreambleEnd`).

Pure codec — no I/O. Encoders write into a `Vec<u8>`; decoders parse
from a `&[u8]` slice and return the consumed-byte count alongside the
record. Higher-level connect/request/response orchestration stays in the
M5 ASB client (`mxaccess-asb`, F25).

24 new unit tests cover round-trip for every record type, multibyte-int31
boundary cases (0, 1, 127, 128, 16383, 16384, 200, i32::MAX), preamble
emission against the canonical ASB sequence, byte-layout pinning for
Version/Mode/KnownEncoding, and rejection of unknown record/mode/encoding
bytes plus truncated sized-envelope frames.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 11:01:24 -04:00
Joseph Doherty 7611d9e215 [M5] mxaccess-codec: F24 ASB Variant + AsbStatus + RuntimeValue codec
Ports `Variant` (cs:1170-1241), `AsbStatus` (cs:1109-1167), `RuntimeValue`
(cs:741-791), `AsbVariantFactory.From*` (cs:1310-1429), and
`MxAsbDataClient.DecodeVariant` (cs:713-825) into `mxaccess-codec::asb_variant`.

Three layers per `docs/ASB-Variant-Wire-Format.md`:
1. `AsbVariant` — raw 2/4/4/payload header + bytes; round-trips byte-identical.
2. `DecodedVariant` — typed view with one variant per proven ASB scalar / array
   (`Bool`, `Int32`, `Float`, `Double`, `String`, `DateTime`, `Duration` plus
   array forms). Type ids outside the proven matrix surface as
   `Unsupported { type_id, payload }` — same fallback as .NET's `_ => payload`.
3. `from_*` factories — mirror `AsbVariantFactory.FromX` exactly, setting
   `length` to `payload.len()` per `cs:1431-1438`.

`AsbStatus` and `RuntimeValue` round-trip the wire layout verbatim.
Status-element walking (marker bit 7 = implicit zero, etc., per
`docs/ASB-Variant-Wire-Format.md:180-205`) is deferred to a follow-up; the
codec exposes the raw status payload bytes for now, matching .NET's
`AsbStatus.Payload = byte[]` shape.

The lib.rs `AsbVariant` / `AsbStatus` / `RuntimeValue` stubs are replaced by
the real types via `pub use`. 25 new unit tests cover the proven matrix:
scalar + array round-trip, byte layout (2/4/4/payload), `Unsupported`
fallback for declared-but-unproven types, short-frame rejection,
malformed `string[]` partial-decode preservation matching .NET behavior.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 10:47:11 -04:00
Joseph Doherty ed17c07c10 [M5] mxaccess-asb-nettcp: M5 plan + F19 deps + F23 auth crypto port
F18 plans M5 as 9 sub-followups (F18-F26 + F27 constant-time DH) per
design/dependencies.md:73-89. Wave-1 streams F20-F23+F24 are parallel-safe
after F19 (workspace deps). F25 (ASB client) is sequential after the
framing/encoder streams. F26 (Session over AsbTransport) is sequential
after F25.

F19 — workspace deps for the M5 crypto + framing surface: hmac, md-5,
sha1, sha2, aes, cbc, pbkdf2, flate2, rand, num-bigint, num-traits,
num-integer, quick-xml, tokio-util, zeroize. Pinned to the digest 0.10 /
cipher 0.4 generation matching mxaccess-rpc.

F23 — ports `AsbSystemAuthenticator.cs` (167 LoC) to
`mxaccess-asb-nettcp::auth`. Wire-byte parity points: .NET BigInteger
little-endian two's-complement byte order with optional 0x00 sign-byte
suffix; AES-128-CBC with PKCS7 padding; PBKDF2-SHA1 1000 iterations
over `Convert.ToBase64String(crypto_key)` with ASCII salt
"ArchestrAService"; deflate-then-AES (Baktun) vs raw-AES (Apollo)
selected by `:V2` lifetime suffix; HMAC-MD5/SHA1/SHA512 negotiated per
`AsbSolutionCryptoParameters.HashAlgorithm` (with `force_hmac=true`
fallback to HMAC-SHA1 for unrecognised algorithms).

13 unit tests cover the cryptographic primitives + DH peer agreement +
.NET byte-order round-trip + Apollo lifetime dispatch.

F27 — filed for the `num-bigint` → `crypto-bigint::BoxedUint` swap once
the latter exposes a stable heap-allocated `pow_mod`. Currently at
parity with the .NET reference (also not constant-time).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 10:36:15 -04:00
Joseph Doherty a5d31cc2e1 [M4] mxaccess: wire MxValue overloads + shutdown(timeout) shim
rust / build / test / clippy / fmt (push) Has been cancelled
Replaces the lib.rs `Unsupported`-stub Session methods with real
implementations where the underlying primitives already exist in
session.rs, sharpens docstrings on the still-deferred ones, and
refreshes the stale "M0 stub" module preamble.

Wired (now functional):
- `Session::write(MxValue)` — converts via `mxvalue_to_writevalue` then
  delegates to `write_value`.
- `Session::write_with_timestamp(MxValue, SystemTime)` — same plus
  `system_time_to_filetime` then `write_value_at`.
- `Session::write_secured_at(MxValue, SystemTime, SecurityContext)` —
  same plus `write_value_secured_at`.
- `Session::shutdown(timeout)` — `tokio::time::timeout` wrapper around
  `shutdown_nmx`; on elapse returns `Error::Timeout` (the in-flight
  unregister is cancelled, mirroring the .NET `IDisposable` semantics
  at `MxNativeSession.cs:481`).

Still `Unsupported` (gating reasons documented in each docstring):
- `Session::connect` — needs F12 auto-resolve (gated on F6 windows-rs).
- `Session::write_with_completion` — needs per-token registry, gated
  on R15 long-lived task.
- `Session::write_secured` (no timestamp) — `NmxClient` only ports
  `WriteSecured2` (LMX 0x3A), not the unversioned `WriteSecured` (0x39).
- `Session::subscribe_many` — no atomic frame on the wire; canonical
  pattern is `examples/multi-tag.rs`.
- `Session::subscribe_buffered` — M6 `SetBufferedUpdateInterval` RPC.

`mxvalue_to_writevalue` consumes the `MxValue` and returns
`Error::Configuration(InvalidArgument)` for the three variants whose
re-encode is policy-dependent: `DateTime` / `ElapsedTime` /
`DateTimeArray`. The `non_exhaustive` MxValue catch-all preserves
forward compat.

Test count delta: 532 → 542 (+10; conversion happy paths for Boolean /
Int32 / Float64 / String / Int32Array / BoolArray / StringArray, plus
the three rejected variant errors).
Open followups touched: none resolved (F12, F16 still gating).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 10:29:54 -04:00
Joseph Doherty 48d3a9d6da [M2/M4] mxaccess-rpc: Guid::parse_str + dedupe examples (resolves F17)
Adds `Guid::parse_str(&str) -> Result<Guid, RpcError>` to
`crates/mxaccess-rpc/src/guid.rs` as the inverse of the existing
`Display` impl. Accepts the canonical dashed-hex form, optionally
braced (.NET `B` format), case-insensitive, and tolerant of bare
32-char hex without dashes. Single-pass char-by-char nibble accumulator
avoids per-byte string allocation; applies the same byte-swap of
groups 1-3 that the `Display` impl reads.

Eight new tests cover round-trip against the existing `Display`
fixture (`crates/mxaccess-rpc/src/guid.rs:111-119`,
`b49f92f7-c748-4169-8eca-a0670b012746`), braces, uppercase, no-dashes,
zero-GUID, too-short, too-long, and non-hex rejection.

The five live-NMX examples (`connect-write-read`, `subscribe`,
`recovery`, `multi-tag`, `secured-write`) lose their per-file 15-line
`parse_guid` helpers in favour of the canonical implementation.
`asb-subscribe` and `subscribe-buffered` are unaffected — they don't
parse GUIDs.

Test count delta: 524 → 532 (+8)
Open followups touched: F17 resolved.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 10:18:21 -04:00
Joseph Doherty af939730b1 [M4] mxaccess: examples wave 3 — 7 example programs (M4 wave 3)
Replaces the M0 stub bodies in `crates/mxaccess/examples/` with real
consumer-facing demos against the M4 NMX `Session` surface. Each example
gates on `MX_LIVE` and prints a friendly bypass message when the live
env vars aren't populated, so `cargo build --workspace --all-targets`
stays green in CI without an AVEVA install.

Five examples target the proven NMX path (build + connect + demo +
shutdown):
- `connect-write-read` — `Session::write_value` + `read` round-trip; the
  30-line consumer-experience target from `design/60-roadmap.md` M4 DoD.
- `subscribe` — single-tag `Subscription` stream; drains 5 updates or
  10s timeout, then `unsubscribe` cleanly.
- `recovery` — `RecoveryPolicy { max_attempts: 3, delay: 250ms }`
  + spawned `recovery_events()` listener consuming the broadcast.
- `multi-tag` — per-tag `subscribe` loop merged via
  `futures_util::stream::select_all`; matches the .NET cs:250-270 shape
  (no atomic subscribe-many RPC on the wire).
- `secured-write` — `write_value_secured_at` exercising both single-user
  (`current_user_id == verifier_user_id`) and two-person paths per
  `wwtools/mxaccesscli/src/MxAccess.Cli/Commands/WriteCommand.cs:151-155,196-199`.

Two examples hold the place for downstream milestones:
- `subscribe-buffered` — pattern-matches on `Error::Unsupported` from
  `Session::subscribe_buffered` (M6) and exits 0 with an explanation.
- `asb-subscribe` — same shape against `Session::connect` (M5 ASB).

All five live examples share an inline `LiveEnv::from_process` helper,
a dashed-hex `parse_guid`, and a `StaticResolver` that returns canned
metadata for the configured `MX_TEST_TAG`. The duplication is
intentional — Cargo examples are meant to be self-contained and read
top-to-bottom; consumers swap `StaticResolver` for a tiberius-backed
Galaxy resolver (followup F14) without touching any other example.

Test count delta: 524 → 524 (+0; examples are demos, not tests)
Open followups touched: F17 logged (Guid::parse_str helper to dedupe
the per-example dashed-hex parser).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 10:14:15 -04:00
Joseph Doherty 33edc91234 rustfmt: collapse short multi-line expressions in ntlm tests
rust / build / test / clippy / fmt (push) Has been cancelled
Pure whitespace cleanup from running `cargo fmt --all` between
iterations; no semantic change.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-05 10:01:45 -04:00