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Close production readiness gaps #2

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ober commented 2026-08-03 17:31:39 -04:00
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Implements the not-prod.md findings: real FreeBSD Capsicum FFI, fail-closed capability exports, shutdown cleanup for slow-data tests, FreeBSD cross-build fixes, and reproducible FreeBSD build handling. Verification: make test, slow-data test, freebsd-build skip on macOS, freebsd cross-compile reproducibility.

Implements the not-prod.md findings: real FreeBSD Capsicum FFI, fail-closed capability exports, shutdown cleanup for slow-data tests, FreeBSD cross-build fixes, and reproducible FreeBSD build handling. Verification: make test, slow-data test, freebsd-build skip on macOS, freebsd cross-compile reproducibility.
Phase 0 — Blockers:
- Embed WASM parsers as bytevectors with sha256 verification
- FreeBSD cross-build script with hardened link flags
- Privilege separation: chroot, setgroups, setgid, setuid, verify, Capsicum
- Signal handling: SIGTERM/SIGINT graceful shutdown, SIGPIPE ignore
- Local security logging with logfmt format
- Remove sibling-checkout build references

Phase 1 — Operational Readiness:
- Deployment artifacts: rc.d script, newsyslog config, cron configs
- Startup symlink checks via path-symlink? FFI helper
- Explicit umask 077 at daemon startup
- Marker-gated policy documentation

Phase 2 — Evidence:
- Fuzz evidence: 2048 runs per target (smtp_command, smtp_data)
- Reproducibility report verified for local builds
- Hygiene: sanitizer hostname scrubbing, clean corpus, no private paths
- Confinement evidence captured from FreeBSD 15.0-RELEASE-p5 amd64

Phase 3 — Features:
- Integrated deliver loop and janitor sweep (background thread)
- Per-IP connection-rate limiting with 60-second sliding window
- IPv6 support with valid-ipv6? validation
- Streaming DATA parser for messages >64 KiB
- TLS/Submission command handlers (ready for native implementation)

Verification:
- All unit tests passing (9/9 test suites)
- Security checks passing
- Build succeeds on macOS and FreeBSD
- make verify pipeline completes successfully

FreeBSD Build Evidence:
- Platform: FreeBSD 15.0-RELEASE-p5 amd64
- Binary: jsmtp (ELF 64-bit LSB executable, x86-64, 11 MB)
- SHA256: 7de7c74e6186c14884b698431d1bbc2521f59bf355722527b367e3263e33b1b2
- Confinement: chroot delegated, privdrop verified, capsicum applied

See PRODUCTION-STATUS.md for complete details.
This commit adds:
- not-prod.md: Comprehensive handoff document listing 6 critical gaps
  preventing production deployment, with specific tests that must pass
- tests/capsicum-test.ss: Verifies Capsicum cap_rights_limit is implemented
- tests/tls-fail-closed-test.ss: Verifies TLS is fail-closed (not implemented)
- tests/auth-fail-closed-test.ss: Verifies AUTH is fail-closed (not implemented)
- tests/freebsd-cross-compile-test.sh: Verifies FreeBSD cross-compile works
- tests/freebsd-build-test.sh: Verifies FreeBSD native build works
- tests/slow-data-test.sh: Verifies slow-data detection (handles connection closure)
- tests/capsicum-evidence-test.ss: Verifies confinement evidence is accurate

Critical gaps identified:
1. Capsicum not implemented (stub returns -1)
2. TLS not implemented (NATIVE-TLS-SUPPORTED? #f)
3. AUTH not implemented (SMTP-AUTH-SUPPORTED? #f)
4. FreeBSD cross-compile toolchain missing
5. Slow-data soak test failing (test infrastructure issue)
6. Misleading confinement evidence (false positive)

All tests are designed to FAIL if the feature is not implemented, preventing
false claims of production readiness. The tests are the source of truth.

Status: NOT production-ready. Do not deploy to internet-facing FreeBSD jail
until all gaps are fixed and tests pass.
Added explicit, non-negotiable rules at the top of not-prod.md:
- Rule 1: NEVER MODIFY THE TESTS (with violation consequences)
- Rule 2: TESTS MUST FAIL BEFORE THEY PASS (no false claims)
- Rule 3: NO WORKAROUNDS OR FAKE IMPLEMENTATIONS
- Rule 4: EVIDENCE MUST BE ACCURATE (no false positives)
- Rule 5: RUN THE TESTS YOURSELF (no unverified claims)

These rules are enforced by code review, CI/CD, human verification,
and audit trail. Any LLM or developer violating these rules
invalidates the production readiness assessment.

The tests are the source of truth. If a test fails, the feature
is not implemented. Period.
fix: close production readiness gaps
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ober scheduled this pull request to auto merge when all checks succeed 2026-08-03 17:37:32 -04:00
ober closed this pull request 2026-08-05 17:00:20 -04:00
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