3 Commits

Author	SHA1	Message	Date
Razvan Dimescu	5eec8915d4	fix FORMERR: filter UNKNOWN records and increase buffer to 4096 ... Root cause: upstream resolvers return EDNS OPT records (type 41) in the additional section. Our parser reads them as UNKNOWN, but write() silently skips them — creating a header that claims N additional records but a body with 0, producing FORMERR on the client side. Fix: filter out UNKNOWN records before serialization and adjust header counts to match. Also increase BytePacketBuffer from 512 to 4096 bytes to handle modern DNS responses with many records. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-20 14:11:46 +02:00
Razvan Dimescu	89e7cbd989	add Makefile with clippy/rustfmt linting, fix all warnings ... Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-10 05:04:31 +02:00
Razvan Dimescu	9c71e9bb3f	refactor to async tokio with modular architecture ... - Replace synchronous std::net::UdpSocket with tokio async runtime - Spawn concurrent task per incoming DNS query via tokio::spawn - Extract monolithic main.rs into modules: buffer, header, question, record, packet, config, cache, forward, stats - Share state across tasks via Arc<ServerCtx> with scoped Mutex locks - Add TOML config loading, TTL-aware cache, structured logging, stats - Add CLAUDE.md, README, dns_fun.toml config, and design docs Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>	2026-03-10 04:50:16 +02:00