Async support for CMAC

[bigbrett]

as described on the tin. See docs for more info. Streaming state a little complicated so should receive extra attentiveness in review. Think I solved it in the right way?

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

Adds async CMAC support (non-DMA and DMA) with new Request/Response primitives, updates wire format to support optional inline input for DMA CMAC, and extends tests/docs to cover the new async behavior.

Changes:

• Introduces async CMAC APIs: oneshot Generate plus streaming Update/Final (both non-DMA and DMA).
• Extends CMAC DMA request wire format with inlineInSz and updates server handling accordingly.
• Adds comprehensive CMAC async test coverage and documents async CMAC design/dispatch behavior.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 11 comments.

Show a summary per file

File	Description
wolfhsm/wh_message_crypto.h	Adds max-inline-size macro and extends CMAC DMA request struct with inlineInSz.
wolfhsm/wh_client_crypto.h	Declares new async CMAC (non-DMA + DMA) API surface.
wolfhsm/wh_client.h	Adds CMAC DMA async context to client DMA async union.
src/wh_message_crypto.c	Translates new inlineInSz field for CMAC DMA requests.
src/wh_server_crypto.c	Validates/parses inline input and updates CMAC DMA execution order.
src/wh_client_crypto.c	Implements async CMAC APIs, wrapper dispatch, and DMA mapping lifecycle management.
test/wh_test_crypto.c	Adds direct tests for async CMAC (non-DMA + DMA) and integrates into test runner.
docs/draft/async-crypto.md	Documents CMAC async API rationale, dispatch rules, and DMA wire format change.

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[wolfSSL-Fenrir-bot]

Fenrir Automated Review — PR #368

Scan targets checked: none
Failed targets: wolfhsm-crypto-bugs, wolfhsm-src

⚠️ Review incomplete — one or more scan targets failed before findings could be produced. See the Fenrir PR review detail page for logs.

[wolfSSL-Fenrir-bot]

Fenrir Automated Review — PR #368

Scan targets checked: wolfhsm-core-bugs, wolfhsm-crypto-bugs, wolfhsm-src

No new issues found in the changed files. ✅