find_by_drive_id gated the product-id-blind four-field fallback behind an empty product_id in 1.7.0, so a drive reporting a specific product_id (e.g. an LG BU40N reporting "BD-RE BU40N") no longer matched its catalog entry (generic "BD-RE"), silently skipping the LibreDrive firmware unlocker — the rip fell through to the AACS host-cert path (LD: no, AACS: yes). Run the four-field fallback (vendor/revision/vendor_specific/firmware_date) unconditionally but ambiguity-guarded: bind a UNIQUE catalog match regardless of the reported product_id (the real-drive case), and require the exact product_id only when catalogued siblings genuinely share the four-field identity — preserving the anti-mis-bind protection the 1.7.0 gate intended. Regression test added. Bump to 1.7.1.
freemkv-unlock
The unlock layer for the freemkv toolchain.
An unlocker removes a drive-level bus-encryption barrier so the drive serves readable (de-bus'd / de-scrambled) sectors. Content-key decryption is a separate concern — the consumer's job.
This crate defines the Unlocker contract and a generic SCSI transport
contract, and holds the self-contained unlocker modules. The consumer
(libfreemkv) depends on this crate and
dispatches through all_unlockers(); it never names an individual unlocker, and
clients of libfreemkv are oblivious to unlockers entirely (as they are to the
SCSI layer).
use freemkv_unlock::UnlockError;
// Drive-prep: try each unlocker's feature unlock until one claims the drive.
// `NotApplicable` means "not this unlocker's drive" — move on; a transport
// error means a dead bus — abort. `unlock_bus` follows the same contract for
// removing per-disc bus encryption.
for u in freemkv_unlock::all_unlockers() {
match u.unlock_features(&mut scsi, &ctx) {
Ok(unlocked) => return Ok(unlocked),
Err(UnlockError::NotApplicable) => continue,
Err(e) => return Err(e),
}
}
To remove an unlocker, delete its module directory and its one line in
all_unlockers() — nothing else changes.
License
freemkv-unlock's own source is MIT — see LICENSE.
src/ld/profiles.json bundles volatile, RAM-only LibreDrive microcode
authored and owned by the MakeMKV team (GuinpinSoft inc.) — Copyright (c)
MakeMKV team, all rights reserved. That microcode is third-party proprietary
material, not covered by the MIT license; no ownership is claimed. See
NOTICE. With thanks to the MakeMKV team for
LibreDrive.