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0.31.0: hardening and correctness pass across mux, codec, AACS/CSS, UDF/MPLS/CLPI, recovery, drive/SCSI, labels, and I/O

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Library-wide review-and-fix pass: tightened AACS keydb/handshake/variant
handling and trailing-partial-unit policy, corrected MPLS mark offset and
added UDF allocation bounds, hardened the mux/codec framing and M2TS paths,
guarded SCSI READ CAPACITY short transfers and unified error mapping, added
overflow guards on untrusted disc input, and made prefetch shutdown
deterministic. Release profile now builds with thin LTO + single codegen unit.
This commit is contained in:
Matthew Jackson
2026-06-07 17:37:38 -07:00
parent 5b6ea8f5c4
commit 061f68594a
128 changed files with 11838 additions and 3831 deletions
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src/labels/dbp.rs
+17 -17
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@@ -1,8 +1,6 @@
//! "dbp" framework — Magnolia Pictures BD-J authoring shop (per
//! `bd-live.magpictures.com` referenced in the disc's
//! `com/dbp/bluray.MenuXlet.perm`). Detected on UHD discs whose
//! `/BDMV/JAR/<x>.jar` (top-level, not in a subdir) contains
//! `com/dbp/` package paths.
//! "dbp" framework — a BD-J authoring framework identified by
//! `com/dbp/` package paths in a top-level `/BDMV/JAR/<x>.jar` (not in
//! a subdir). Seen on UHD discs.
//!
//! Stream labels live as plain ASCII strings inside compiled `.class`
//! files in the jar — a quirk of the menu-rendering layer encoding
@@ -16,21 +14,20 @@
//! ATextField,Subtitle0,None,Fontstrip_Composite,...
//! ```
//!
//! The single uppercase letter before `TextField` is string-pool
//! prefix noise — the parser anchors on `TextField,` regardless of
//! what precedes it. `Subtitle0` is the disable-subtitles menu
//! button and is skipped (not a real subtitle stream).
//! The parser ignores any prefix before the first `TextField,`
//! occurrence — whatever string-pool ordering placed ahead of it is
//! irrelevant. `Subtitle0` is the disable-subtitles menu button and is
//! skipped (not a real subtitle stream).
//!
//! ## Implementation
//!
//! v2 (2026-05-10): rewritten on top of [`super::class_reader`] —
//! iterates `CpInfo::Utf8` constant-pool entries instead of raw byte
//! scanning each class file. Equivalent label coverage (the literal
//! `TextField,...` strings live in the CP as Utf8 entries), but
//! structurally cleaner: no false-positive risk from method bytecode
//! or attribute names happening to contain `TextField,`. Language /
//! purpose / qualifier classification moved to [`super::vocab`] so all
//! Java-parser families share one source of truth.
//! Iterates `CpInfo::Utf8` constant-pool entries rather than raw
//! byte-scanning each class file. Equivalent label coverage (the literal
//! `TextField,...` strings live in the CP as Utf8 entries) with no
//! false-positive risk from method bytecode or attribute names that
//! happen to contain `TextField,`. Language / purpose / qualifier
//! classification lives in [`super::vocab`] so all Java-parser families
//! share one source of truth.
use super::class_reader::CpInfo;
use super::{ParseResult, StreamLabel, StreamLabelType, jar, vocab};
@@ -48,6 +45,9 @@ pub fn detect(udf: &UdfFs) -> bool {
jar::has_any_top_level_jar(udf)
}
/// Scan every top-level `/BDMV/JAR/*.jar` for the dbp framework and
/// extract its stream labels. Returns `None` if no jar carries a
/// `com/dbp/` package path or none yields any labels.
pub fn parse(reader: &mut dyn SectorSource, udf: &UdfFs) -> Option<ParseResult> {
jar::for_each_jar(reader, udf, |_entry_name, archive| {
if !jar::has_path_prefix(archive, "com/dbp/") {