08cc41d705
Closes the cross-cutting items the v4.8 assessment flagged as
"not yet in the policy layer":
- modprobe.d options parser (per-driver param overrides)
- modules-load.d autoload enforcement
- initfs.manifest enforcement
Three new policy surfaces added to policy.rs alongside the
existing SharedBlacklist:
DriverOptions (mirrors Linux modprobe.d/<driver>.conf):
- TOML schema: [[options]] driver = "name" params = [{name, value}, ...]
- Applied at spawn as REDBEAR_DRIVER_PARAM_<NAME>=<value> env var
- SharedDriverOptions with SIGHUP-reloadable replace()
AutoloadList (mirrors Linux modules-load.d/<name>.conf):
- Parses simple 'module = "name"' lines from autoload.d/*.conf
- Deduplicates, ignores comments and blank lines
- SharedAutoloadList with replace()
InitfsManifest (mirrors CachyOS mkinitcpio hook ordering):
- TOML schema: [kms] / [block] / [filesystems] / [boot] sections
- Canonical walk order enforced regardless of TOML declaration
- SharedInitfsManifest with replace()
Plus shared file-loader helpers (read_toml_files, read_any_files,
read_files_matching) to centralise directory iteration. The matcher
accepts both .toml and .manifest extensions so the initfs manifest
can ship as a self-documenting .manifest file.
23 new unit tests in policy::tests (was 6):
- DriverOptions: load_dir missing/parse/skips invalid/empty param
- DriverOptions: for_unknown_driver returns empty
- SharedDriverOptions: replace() round-trip
- AutoloadList: load_dir missing/parses/dedupes/comments+blank
- AutoloadList: accepts quoted/unquoted values
- InitfsManifest: load_dir missing/parses all stages
- InitfsManifest: walks stages in canonical order even when TOML
declares them in reverse
- InitfsManifest: skips empty stages and empty driver names
- InitfsManifest: canonical_order() is stable and Ord-sorted
- SharedInitfsManifest: replace() round-trip
policy::tests count: 6 -> 23 (+17).
No main.rs or scheme.rs changes yet — the new policy surfaces are
library-only at this commit. Wiring (N4) follows in the next
commit; the policy package activation removes the "dormant until
Phase C3" language from the redbear-driver-policy README.