Commit Graph

44 Commits

Author SHA1 Message Date
unkin-agent ac63f65f2f Keep rule extras off the DNAT implied accept, expand all/any DNAT sources and match SPORT
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2026-10-04 15:12:29 +11:00
unkin-agent b29ed2446e Emit the implied ACCEPT for DNAT and REDIRECT rules
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2026-10-04 15:08:11 +11:00
unkin-agent b85ba61fe6 Merge remote-tracking branch 'origin/main' into benvin/ct-helpers
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# Conflicts:
#	internal/nftables/compiler.go
#	internal/nftables/compiler_test.go
#	internal/nftables/engine.go
2026-10-04 13:58:25 +11:00
unkin-agent 9078f410ee Reject conntrack fw DEST without an address in prerouting
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2026-10-03 23:56:29 +10:00
unkin-agent da65c5d0a8 Treat conntrack SOURCE all/any as global like an omitted source
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2026-10-03 23:54:37 +10:00
unkin-agent 90d2875301 Reject zone exclusions in conntrack entries
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2026-10-03 23:53:09 +10:00
unkin-agent c557c4b78a Attach conntrack helpers via ct helper objects
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2026-10-03 23:50:31 +10:00
unkin-agent bf235291d0 Fail closed on unknown/none conntrack DEST and pair all+ symmetrically
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2026-10-03 23:50:18 +10:00
unkin-agent 1c379bf5f1 Merge remote-tracking branch 'origin/main' into benvin/notrack-raw 2026-10-03 23:49:40 +10:00
unkin-agent b6d67897de Expand all!zone exclusions and fail closed on unknown zones
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2026-10-03 23:48:08 +10:00
unkin-agent 337490d995 Reject fw source on prerouting conntrack and pin global omitted-zone entries
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2026-10-03 23:01:29 +10:00
unkin-agent 6af17a4c02 Restrict raw_output to fw sources and reject unmatched prerouting dest zones
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2026-10-03 22:59:14 +10:00
unkin-agent 3c5f1cacd4 Match source/dest zones and addresses on conntrack rules
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2026-10-03 22:56:26 +10:00
unkin-agent 445d14c61e bump google/nftables to v0.3.0
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Set NAT.Specified on DNAT with a port so compiled exprs match kernel readback.
2026-10-03 22:56:20 +10:00
unkin-agent c9adff32f6 Compile conntrack rules into raw-priority chains
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2026-10-03 22:54:34 +10:00
unkin-agent 5238886c6e Merge remote-tracking branch 'origin/main' into benvin/output-oif
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# Conflicts:
#	internal/nftables/compiler_test.go
2026-10-03 22:46:09 +10:00
unkin-agent 036021d726 Treat only non-negated addresses as scoping interfaceless zones
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2026-10-03 22:20:41 +10:00
unkin-agent ff5a52b9e2 Reject ORIGDEST on forwarded rules and mixed-family lists
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2026-10-03 22:18:48 +10:00
unkin-agent 44e1ba852e Skip rules and policies for zones without interfaces
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2026-10-03 22:18:10 +10:00
unkin-agent 34cf6dc9ab Match ORIGDEST in DNAT and filter rules
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2026-10-03 22:16:40 +10:00
unkin-agent b5be665902 Match dest zone oif on output-chain rules and policies
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2026-10-03 22:15:24 +10:00
unkin-agent 1ad025a4b7 Merge remote-tracking branch 'origin/main' into benvin/diff-expr-equality
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# Conflicts:
#	internal/nftables/diff.go
2026-10-03 21:16:39 +10:00
unkin-agent aa0d3e10c2 Merge remote-tracking branch 'origin/main' into benvin/diff-expr-equality
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# Conflicts:
#	internal/nftables/compiler.go
#	internal/nftables/compiler_test.go
2026-10-03 21:15:27 +10:00
unkin-agent abbf434af5 Merge remote-tracking branch 'origin/main' into benvin/mss-clamp-tcpopt
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# Conflicts:
#	internal/nftables/compiler_test.go
2026-10-03 21:14:10 +10:00
benvin 937556abeb Merge pull request 'Add try/confirm safe-apply with out-of-process revert' (#17) from benvin/safe-apply into main
Reviewed-on: #17
2026-10-03 21:13:57 +10:00
benvin e6244d6bf0 Merge pull request 'Expand comma zone lists in rule source and dest' (#16) from benvin/comma-zones into benvin/multiport-multiproto
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Reviewed-on: #16
2026-10-03 21:12:52 +10:00
unkin-agent 0b92f1c2f3 Refuse mutating commands during a try and scope reverts to the try ID
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apply, flush and purge take the try lock and fail with ErrPending, which now
names 'tomswall revert' as the recovery after a failed automatic revert. Each
try gets an ID passed to the timer's 'revert --id', so a stale timer cannot
revert a newer try. Adds tests for Revert success/failure/stale ID and for
restoring a present table at the engine level.
2026-10-03 20:56:52 +10:00
unkin-agent 6ac03e1012 Persist try snapshot and arm a systemd revert timer
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2026-10-03 20:52:42 +10:00
unkin-agent df7ebb8efe fix: preserve rule order in diff and insert replacements in place
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2026-10-03 20:52:01 +10:00
unkin-agent 457056d58a Pick reject type by resolved protocol number
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2026-10-03 20:51:25 +10:00
unkin-agent 8efed72c96 Match exact all/any zone tokens, skip only interface-less ip zones, keep DNAT free of rule extras, reject '!' inside address lists
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2026-10-03 20:50:36 +10:00
unkin-agent ed3209681d Load MSS option via tcpopt exthdr op in clamp rule
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2026-10-03 20:50:13 +10:00
unkin-agent 852d6bf2ca Resolve common IANA protocol names and reject ports on portless protocols
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2026-10-03 20:49:54 +10:00
unkin-agent f522589a83 Merge remote-tracking branch 'origin/benvin/multiport-multiproto' into benvin/comma-zones 2026-10-03 20:48:31 +10:00
unkin-agent e16d95fb63 fix: compare rule expressions by value in diff
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2026-10-03 20:48:29 +10:00
unkin-agent 9c30f1fa54 Reject unknown protocols and dports on mixed ICMP proto lists
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2026-10-03 20:47:46 +10:00
unkin-agent ad2dd9e3e7 Merge benvin/multiport-multiproto; reject limits on zone and address lists
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2026-10-03 20:46:37 +10:00
unkin-agent cc12c4a43a Add try/confirm safe-apply and agent auto-revert
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2026-10-03 20:45:57 +10:00
unkin-agent 211bacd507 Expand comma zone lists in rule source and dest
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2026-10-03 20:45:32 +10:00
unkin-agent 30758855ff Reject empty list elements, unknown ICMP types and limits on list rules
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2026-10-03 20:45:16 +10:00
unkin-agent 9976bc9190 Match any listed port or protocol instead of AND-ing them
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2026-10-03 20:41:42 +10:00
benvin e0f54ef320 Add tomswall agent (control-plane pull mode)
Add `tomswall agent`: it pulls this device's compiled config from tomswallapi,
differentially applies it, and reports the applied generation. It caches the
last known-good config and, when the control plane is unreachable, keeps
applying that cache — it never fails closed.

- internal/agent: rendered-config types, HTTP client (fetch + status report),
  on-disk cache, on-device DNS resolver for dns sets (honors the device's
  configured resolver, fail-safe on lookup failure), and the pull-apply-report
  loop behind a mockable Applier.
- Translate the interface-agnostic, address-matched rendered model into native
  tomswall config using the "all:<cidr>" any-interface source/dest form, reusing
  the existing differential engine. Named-set members are inlined as concrete
  addresses (native nft set references are a tracked follow-up).
- cmd/tomswall: wire the `agent` subcommand (flags + TOMSWALL_* env, --once).
- Unit tests: translation, cache, and the don't-fail-closed fallback loop.
- Add DESIGN.md documenting the control-plane architecture.
2026-07-20 20:05:49 +10:00
unkinben 8d9a76c751 Add comprehensive nftables compiler with shorewall feature parity
Rewrites the compiler from ~440 to ~1700 lines covering all major shorewall
firewall features: loopback, conntrack fast-path, anti-spoof, DHCP, intra-zone,
blacklist/whitelist, conntrack notrack, tunnels (13 types), rules with sections,
DNAT/redirect, SNAT/masquerade, static NAT, policies with zone exclusions,
MSS clamping, rate limiting, connection limiting, negated addresses, ICMP type
matching, TCP RST reject, user/UID matching, mark match/set, NFQUEUE, NONAT,
and policy-level rate/conn limiting.

Adds full config types for all shorewall subsystems (mangle, accounting, maclist,
netmap, providers, tunnels, conntrack, blrules, proxyarp/ndp, routes, tc, secmarks),
shorewall migration tooling, expanded CLI commands, expression-level diff engine,
and 49 unit tests.
2026-07-01 23:56:44 +10:00
unkinben 2a3eb3b04d Initial scaffold for tomswall
Spiritual successor to shorewall — manages nftables directly via
google/nftables. Reads a single YAML config covering zones, interfaces,
hosts, policy, rules, snat, and named portgroups. Computes differential
changes against the running nftables state and applies them atomically.
Supports detecting and purging rules added outside of tomswall.
2026-06-28 23:43:16 +10:00