[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>
This commit is contained in:
Joseph Doherty
2026-05-05 11:06:11 -04:00
parent 9dfd1937c2
commit 43c10a15ca
3 changed files with 555 additions and 2 deletions
+6 -2
View File
@@ -46,7 +46,11 @@ move to `## Resolved` with a date + commit hash.
**Resolves when:** F19-F26 are all closed and the four DoD bullets above pass.
**Cumulative execution log.** F19 + F23 (`ed17c07`); F24 (`7611d9e`); F20 landed in this commit:
**Cumulative execution log.** F19 + F23 (`ed17c07`); F24 (`7611d9e`); F20 (`9dfd193`); F22 landed in this commit:
- F22: `mxaccess-asb-nettcp::nbfs` ports `[MC-NBFS]` §2.2 static dictionary table — the curated subset (~80 entries) covering SOAP 1.2 envelope, WS-Addressing 1.0, xsi/xsd primitives, common XML element/attribute names. `lookup_static(id)` and `position_of_static(value)` plus a `OnceLock`-cached reverse map. Lookups against unmapped IDs return `None` so the F21 NBFX decoder surfaces a clear error rather than silently corrupting. Extending the table is a one-line append in numerical order; existing tests assert monotonic IDs to catch transposition.
**Earlier slices:**
- F20 (commit `9dfd193`):
- F20: `mxaccess-asb-nettcp::nmf` ports the `[MS-NMF]` `.NET Message Framing` record codec — Version, Mode, Via, KnownEncoding, ExtensibleEncoding, Unsized/SizedEnvelope, End, Fault, UpgradeRequest/Response, PreambleAck, PreambleEnd. `Multibyte Int31` (LEB128 over 31-bit unsigned) implementation with overflow + negative-length rejection. `encode_preamble` helper emits the canonical ASB connect sequence (`Version 1.0 → Duplex → Via $uri → BinaryWithDictionary → PreambleEnd`). 24 unit tests cover record round-trip for every record type, multi-byte length boundary cases (0/1/127/128/16383/16384/200/i32::MAX), preamble emission, byte-layout pinning for Version/Mode/KnownEncoding, and rejection of unknown record/mode/encoding bytes plus truncated sized-envelope frames.
**Earlier slices:**
@@ -58,7 +62,7 @@ move to `## Resolved` with a date + commit hash.
- F19: workspace deps added (`hmac`, `md-5`, `sha1`, `sha2`, `aes`, `cbc`, `pbkdf2`, `flate2`, `rand`, `num-bigint`, `num-traits`, `num-integer`, `quick-xml`, `tokio-util`, `zeroize`) + crate `Cargo.toml` propagation.
- F23: `mxaccess-asb-nettcp::auth` ports `AsbSystemAuthenticator` (167 LoC .NET → ~480 LoC Rust + tests). 13 tests cover decimal-prime parsing, .NET `BigInteger` byte-order round-trip (sign-byte append/strip + zero), base64 against RFC 4648 §10 vectors, public-key range, private-key sizing, peer-to-peer DH shared-secret agreement, signed-validator message-number monotonicity, AES-CBC PKCS7 padding, unknown hash algorithm fallback (no MAC unless `force_hmac=true`), Apollo `:V2` lifetime-suffix dispatch, PBKDF2-SHA1 self-consistency snapshot.
F21, F22, F25, F26 remain open for parallel agent fan-out. F27 (constant-time DH) is filed as a separate follow-up below.
F21, F25, F26 remain open for parallel agent fan-out. F22's static dictionary subset is intentionally curated; expand entries as wire captures show new IDs. F27 (constant-time DH) is filed as a separate follow-up below.
### F27 — Constant-time DH `mod_exp` (swap `num-bigint` → `crypto-bigint::BoxedUint`)
**Severity:** P2 (security regression vs the long-term Rust target — but at parity with the .NET reference today, so not a release-blocker)