A DNAT map (named or anonymous) becomes one port forward per element,
named after the map; a verdict map becomes one rule per element, in
place, with jumps inlined. A lookup matches one element at most, so the
expanded rules do the same. A named map that can't be expanded (keyed by
several fields) is left out with a note instead of a raw rule naming it,
which nftables would refuse. Test fixture made with nft 1.1.3.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Zones, address sets (IPv4 and IPv6 mixed, dynamic sets with timeouts) and
services, ordered rules in the early, input, forward and output chains,
port forwards with hairpin NAT and IPv6 pinholes, source NAT, redirects,
and switchable built-ins (loopback, conntrack, ICMPv6, antispoofing, MSS
clamping, DHCPv6 client, flowtable). Every change is validated, checked
with nft -c and applied in one transaction to Housecarl's own table,
inet housecarl; changes made over the network roll back unless
confirmed, and the confirmed ruleset is loaded at boot by
housecarl-ruleset.service. An empty configuration applies nothing.
Also: hit counters and the drop log (nflog), 'hc import' of an existing
nftables ruleset and 'hc takeover', the hc CLI, the REST API and the web
UI, users, scoped tokens (sets:write:NAME), the audit log, the web UI's
certificate through Jarl, Debian packages, docs, unit tests with real
nft 1.1.3, and an e2e test with real traffic (71 checks).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Housecarl will be a firewall manager for nftables, built the way Jarl and
Steward are: housecarld (a daemon with a REST API and web UI), hc (the
CLI) and SQLite.
- The logo: a carved Nordic doorway in Jarl's blue (artwork/logo.svg),
with a small version without the carvings, lighter on dark
backgrounds. scripts/logo.py builds the web UI's copies and
scripts/banner.py the README banner.
- The HOUSECARL wordmark in Jarl's and Steward's angular letters, with
new H, O, U and C (assets/brand.js), and the UI's color tokens.
- housecarld and hc print their version; the Makefile, version package,
AGENTS.md, CHANGELOG and the design sketch (docs/design.md).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
abrown38andClaude Opus 5.5