Razvan Dimescu 2274151c17 fix(packet): parse SOA natively to stop malformed replies (#128) ...

SOA records were stored as opaque bytes (DnsRecord::UNKNOWN), so the
RFC 1035 §3.3.13 MNAME/RNAME name-compression pointers — offsets into
the upstream packet — were re-emitted verbatim. Once Numa applied its
own compression to surrounding names, those pointers landed on garbage
and clients rejected the reply ("malformed reply packet" in kdig).

Parse SOA via read_qname and write via write_qname, matching the
NS/CNAME/MX pattern. Adds the canonical-rdata arm in dnssec.rs for
RRSIG verification. Regression test round-trips a CNAME-chain response
with a compressed SOA in authority through hickory-proto strict parse.

2026-04-23 00:36:02 +03:00

25 KiB

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