Adopt the alk*/fuzzing posture (alkcall 0.8.1 + alktunnels 0.2.1
precedent) before the v0.1 publish — the cheapest moment this crate
will ever have for it:
- alkcall 0.8.1 + alktunnels 0.2.1: the duplicate-adopt/open fix is
directly relevant to this crate's consumer open/adopt paths
- fuzz/ workspace (the sibling layout): nightly-pinned subtree, stable
fuzz/shared library (corpus replay = the fuzz gate), detached runner,
JSON dict, deterministic seed generator; 129 committed seeds
- three wave-1 targets over already-pub APIs: datagram_codec (the
ASSOCIATE frame codec — the alkcall-fuzz-doc-assigned downstream
target), rfc1928_codec (the forked RFC 1928 core's handshake state
machines, both protocol directions), params_parse (the wire-stable
open-op surface)
- one diagnostic: DatagramReader::retained_bytes() (the decoder-state
bound's assertion target, the alktunnels retained_bytes() posture)
- docs/research/fuzzing.md: the scoped plan + implementation log;
AGENTS.md gains the corpus-replay verification line
- campaigns: 3 × 10-min detached runs exited 0 (datagram ~1.9M execs,
rfc1928 ~2.0M, params ~3.1M; oom/timeout/crash 0/0/0 on all 33 fork
jobs per target; coverage saturated on both codec targets). No crate
bugs; three harness-model defects found + fixed (2 pre-campaign by
corpus replay, 2 campaign-found, crash inputs promoted as seeds 900/
901): the len==0 well-framed decode partition, the fieldless-struct
serde-seq form, the BadAtyp re-frame arm, the short-domain count-walk
gate
- wave 2 (session_pumps stateful target) deferred to post-0.1 — the
byte-level targets carry the attacker-reachable load for the publish
Verification: cargo test (15 suites ok, default + all-features), clippy
(all-targets + wasm + fuzz/shared), fmt, cargo doc, publish --dry-run,
corpus replay 129 seeds green, cargo fuzz build clean.
Refs: alkcall docs/research/fuzzing.md (§7.9 posture), alktunnels
docs/research/fuzzing.md; docs/research/fuzzing.md (this crate's copy)
glm-5.3-flash
08a3694464