feat: add make sbom / install-sbom / uninstall-sbom targets by MarkAtwood · Pull Request #410 · wolfSSL/wolfProvider

MarkAtwood · 2026-06-23T22:35:04Z

Summary

Adds make sbom, make install-sbom, and make uninstall-sbom targets to wolfProvider's autotools build for EU CRA compliance evidence (CycloneDX 1.6 + SPDX 2.3 output)
Adds AC_CHECK_PROG checks for python3 and pyspdxtools in configure.ac

Usage

make sbom WOLFSSL_DIR=/path/to/wolfssl
# produces: wolfprov-1.1.1.cdx.json  wolfprov-1.1.1.spdx.json  wolfprov-1.1.1.spdx
pyspdxtools --infile wolfprov-1.1.1.spdx.json   # must pass

make install-sbom   # installs to $(datadir)/doc/wolfprov/
make uninstall-sbom

WOLFSSL_DIR must point to a wolfssl checkout containing scripts/gen-sbom (branch feat/sbom-embedded, or master once wolfSSL/wolfssl#10343 merges).

Notes

Product name is wolfprov throughout (matches AC_INIT and lib_LTLIBRARIES), not wolfprovider
No generated options.h; uses installed wolfssl's options.h via $(WOLFSSL_INCLUDEDIR)/wolfssl/options.h. WOLFSSL_DIR defaults to $(WOLFSSL_INSTALL_DIR) (set by --with-wolfssl= at configure time)
wolfProvider's libtool default SONAME is libwolfprov.so.0.0.0 (no -version-info set) — --lib path uses this literal, not the package version 1.1.1
Known limitation: if wolfssl was found via pkg-config rather than --with-wolfssl, WOLFSSL_INSTALL_DIR may be malformed; pass WOLFSSL_DIR= explicitly in that case

Copilot

Pull request overview

Adds SBOM generation and install/uninstall targets to the autotools build so wolfProvider can emit CycloneDX 1.6 and SPDX 2.3 artifacts (via wolfSSL’s gen-sbom script), plus configure-time discovery of required tooling.

Changes:

Add make sbom, make install-sbom, and make uninstall-sbom targets that stage-install the built artifacts and generate CycloneDX/SPDX outputs.
Add AC_CHECK_PROG checks for python3 and pyspdxtools in configure.ac.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
Makefile.am	Adds SBOM generation and install/uninstall targets and related variables.
configure.ac	Adds checks for `python3` and `pyspdxtools` availability.

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+# ---------------------------------------------------------------------------
+# SBOM generation (CycloneDX + SPDX) via wolfssl's gen-sbom script
+# ---------------------------------------------------------------------------
+WOLFSSL_DIR ?= $(WOLFSSL_INSTALL_DIR)


+WOLFSSL_DIR ?= $(WOLFSSL_INSTALL_DIR)
+WOLFSSL_INCLUDEDIR ?= $(WOLFSSL_DIR)/include
+PRODUCT   = wolfprov
+VERSION   = $(shell grep LIBWOLFPROV_VERSION_STRING $(srcdir)/include/wolfprovider/version.h 2>/dev/null | sed 's/.*"\(.*\)".*/\1/')


+	@if test -z "$(PYTHON3)"; then \
+	    echo "ERROR: python3 not found in PATH."; exit 1; fi
+	$(MAKE) install DESTDIR=$(builddir)/_sbom_stage
+	$(PYTHON3) $(GEN_SBOM) $(SBOM_OPTS)
+	rm -rf $(builddir)/_sbom_stage


Adds CycloneDX + SPDX SBOM generation via wolfssl's gen-sbom script. Usage: make sbom WOLFSSL_DIR=/path/to/wolfssl wolfProvider has no generated options.h; uses installed wolfssl's options.h. WOLFSSL_DIR defaults to WOLFSSL_INSTALL_DIR. SONAME is libwolfprov.so.0.0.0 (libtool default, no version-info set).

Replace the inline SBOM recipe with the shared, product-agnostic scripts/sbom.am used across the wolfSSL autotools stack. wolfProvider just declares itself (a libwolfprov shared library that links both wolfSSL and OpenSSL) and includes the fragment, gaining reproducible output, license/version pinning, SPDX validation, dependency recording (wolfssl + openssl), and an install/uninstall hook. Switch configure to AC_PATH_PROG + AC_SUBST, expand the README, and add a SBOM CI workflow. Signed-off-by: Sameeh Jubran <sameeh.j@gmail.com>

aidangarske

🐺 Skoll Code Review

Overall recommendation: REQUEST_CHANGES
Findings: 2 total — 2 posted, 0 skipped

Posted findings

[High] SBOM version lookup breaks clean out-of-tree builds and overrides Automake VERSION — Makefile.am:60-71
[Medium] pyspdxtools probe is never enforced by the sbom target — configure.ac:30, Makefile.am:80-83

Review generated by Skoll.

aidangarske · 2026-07-09T17:02:24Z

+# it is (a shared library that links both wolfSSL and OpenSSL) and includes it.
+# WOLFSSL_DIR must point to a wolfssl source tree containing scripts/gen-sbom;
+# it defaults to the --with-wolfssl location, which is an install prefix, so for
+# `make sbom` pass a source tree: make sbom WOLFSSL_DIR=/path/to/wolfssl.


🟠 [High] SBOM version lookup breaks clean out-of-tree builds and overrides Automake VERSION
🚫 BLOCK bug

The PR defines VERSION by grepping $(srcdir)/include/wolfprovider/version.h, but this header is generated by configure.ac and is gitignored; a clean source tree only contains include/wolfprovider/version.h.in. In a normal VPATH/out-of-tree build, the generated header lives in the build tree, so this grep returns empty. Because VERSION is also Automake's standard package-version variable, this can produce SBOM paths like wolfprov-.spdx and can also affect other Automake rules that rely on $(VERSION). The PR introduces this by adding a new top-level VERSION = ... assignment for SBOM generation.

Recommendation: Replace the custom VERSION assignment with a separate SBOM variable based on $(PACKAGE_VERSION) or @VERSION@ before merge. For example: SBOM_VERSION = $(PACKAGE_VERSION) and reference $(SBOM_VERSION) in the SBOM paths and options.

aidangarske · 2026-07-09T17:02:24Z

 AC_LANG(C)

+# Tools used by the SBOM targets (see scripts/sbom.am `make sbom`).  GIT is used
+# only to derive SOURCE_DATE_EPOCH for reproducible SBOM output; all three are


🟡 [Medium] pyspdxtools probe is never enforced by the sbom target
💡 SUGGEST bug

The PR adds AC_CHECK_PROG([PYSPDXTOOLS], [pyspdxtools], [pyspdxtools]) and the README says pyspdxtools is required, but make sbom only checks $(PYTHON3) before invoking gen-sbom. If pyspdxtools is missing, configure still succeeds and the target proceeds until the generator fails later, likely with a less actionable error. This weakens the dependency check introduced by the PR.

Recommendation: Use the PYSPDXTOOLS configure result in the sbom recipe so the documented dependency is checked before running the generator, e.g. add an @if test -z "$(PYSPDXTOOLS)"; then echo "ERROR: pyspdxtools not found in PATH. Install with: pip install spdx-tools"; exit 1; fi guard.

MarkAtwood · 2026-07-09T19:41:29Z

Both Skoll findings are against code that isn't in this PR (verified against the current head):

"VERSION grep at Makefile.am:60" — line 60 is a comment. There is no VERSION = assignment and no include/wolfprovider/version.h grep anywhere in the diff. SBOM filenames use $(PACKAGE_VERSION) (see scripts/sbom.am), so the "empty version / overrides Automake VERSION" symptom can't occur. The only version.h reads in the PR are the gated wolfSSL dependency version, a separate variable.
"pyspdxtools probe never enforced" — the recipe enforces it before gen-sbom runs: scripts/sbom.am:95 has @test -n "$(PYSPDXTOOLS)" || { echo "ERROR: 'pyspdxtools' not found ..."; exit 1; }.

The recipe was refactored into the shared scripts/sbom.am (byte-identical to the wolfssh copy); the flagged lines predate that refactor. CI is green. Requesting a re-review / dismissal of the stale change-request.

MarkAtwood · 2026-07-09T19:47:07Z

Detailed verification — both Skoll findings are against code that isn't in this PR

Checked two ways against the reviewed head 611ccd038f14663e74e8225eb8fe821ff8290293: statically on a fresh clone, and empirically via this PR's own make sbom CI. Neither finding reproduces.

Finding 1 — "VERSION grep at `Makefile.am:60` overrides Automake `VERSION`"

No VERSION = … assignment exists in any Makefile.am, *.am, or configure.ac. grep -rnE '^[[:space:]]*VERSION[[:space:]]*[:]?=' over a clean clone of the head returns nothing.
The only references to include/wolfprovider/version.h are benign: configure.ac:211 (an AC_CONFIG_FILES output generated from version.h.in) and include/include.am:7 (header install). Neither greps a version for the SBOM.
SBOM output names use $(PACKAGE_VERSION), not $(VERSION):
- scripts/sbom.am:52-54 — SBOM_CDX = $(SBOM_PKGNAME)-$(PACKAGE_VERSION).cdx.json (and .spdx.json, .spdx)
- scripts/sbom.am:172 — gen-sbom is passed --version $(PACKAGE_VERSION)
PACKAGE_VERSION is set by AC_INIT, so it cannot be empty — the wolfprov-.spdx symptom described in the finding cannot occur.
Makefile.am:60 is a comment line (# … make sbom WOLFSSL_DIR=/path/to/wolfssl.), not a VERSION assignment.

Finding 2 — "pyspdxtools probe never enforced by the sbom target"

It is enforced before the generator runs: scripts/sbom.am:95 — @test -n "$(PYSPDXTOOLS)" || { echo "ERROR: 'pyspdxtools' not found (pip install spdx-tools)."; exit 1; }
And it is used: scripts/sbom.am:182 — $(PYSPDXTOOLS) --infile $(SBOM_SPDX) --outfile $(SBOM_SPDX_TV) (SPDX → tag-value).

Empirical — `make sbom` builds and passes on this exact SHA

The SBOM Test workflow (run https://github.com/wolfSSL/wolfProvider/actions/runs/29008558830) built the full openssl + wolfssl + wolfprovider stack from source and ran make sbom on 611ccd038. Every step passed, including:

Generate SBOM — make sbom ran end-to-end
Outputs exist and SPDX validates — pyspdxtools --infile validated the generated SPDX
CycloneDX identity and licence — asserts a versioned purl (pkg:github/wolfSSL/wolfprovider@…) and GPL-3.0-or-later
Reproducible across two runs, wolfssl / openssl recorded as dependencies

If the version were empty or pyspdxtools weren't wired, those steps would fail — they pass.

Both findings are incorrect against the current head. CI is green; requesting the change-request be dismissed so this can proceed.

Copilot AI review requested due to automatic review settings June 23, 2026 22:35

Copilot started reviewing on behalf of MarkAtwood June 23, 2026 22:35 View session

MarkAtwood requested a review from sameehj June 23, 2026 22:36

Copilot AI reviewed Jun 23, 2026

View reviewed changes

aidangarske assigned MarkAtwood Jun 24, 2026

MarkAtwood added 2 commits June 29, 2026 12:17

docs: add SBOM/EU CRA Compliance section to README

8db5499

MarkAtwood force-pushed the feat/add-make-sbom branch from a93e1f6 to 8db5499 Compare June 29, 2026 19:18

MarkAtwood assigned wolfSSL-Bot and unassigned MarkAtwood Jul 6, 2026

aidangarske requested changes Jul 9, 2026

View reviewed changes

aidangarske assigned MarkAtwood and unassigned wolfSSL-Bot Jul 9, 2026

MarkAtwood assigned wolfSSL-Bot Jul 9, 2026

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feat: add make sbom / install-sbom / uninstall-sbom targets#410

feat: add make sbom / install-sbom / uninstall-sbom targets#410
MarkAtwood wants to merge 3 commits into
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MarkAtwood commented Jun 23, 2026

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MarkAtwood commented Jul 9, 2026

Detailed verification — both Skoll findings are against code that isn't in this PR

Finding 1 — "VERSION grep at Makefile.am:60 overrides Automake VERSION"

Finding 2 — "pyspdxtools probe never enforced by the sbom target"

Empirical — make sbom builds and passes on this exact SHA

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Finding 1 — "VERSION grep at `Makefile.am:60` overrides Automake `VERSION`"

Empirical — `make sbom` builds and passes on this exact SHA