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7e424f34bcec4eca773ee10f243022cc58b51c79
75
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
 Johnathan Corgan
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7e424f34bc | testing: add mixed-version interop harness | ||
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Johnathan Corgan
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3fc0178192 | Merge maint into master (FSP rekey overlapping-epoch, drain-erase fix) | ||
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Johnathan Corgan
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6e5cb8965f |
Make FSP session rekey hitless under packet loss and reordering
An FSP session rekey could leave the two endpoints holding different key sets for a brief window: if a handshake message was lost in transit, one side rotated to the new keys while the other did not. Traffic sealed in one key epoch then reached a peer still on the other epoch and failed to decrypt, producing bursts of AEAD decryption failures and dropped connectivity until a later rekey cycle reconverged the pair. Choreographing the cutover order cannot close this window: any fixed ordering still leaves a skew that packet reordering widens. Make rekey correctness independent of cutover timing by overlapping the key epochs on the receive path. During a rekey transition the receiver trial-decrypts each frame against every live session it holds: current, the not-yet-promoted pending session, and the draining previous session. The K-bit becomes a hint that orders the trial-decrypt cascade rather than a hard gate, and a frame that authenticates against the pending session is itself the cutover signal. No rotation ordering and no packet reordering can then cause a decryption failure. The pre-rekey Noise session is held in the `previous` slot until the peer has demonstrably moved off it. Its drain deadline is anchored on the most recent frame the peer authenticated against that slot, refreshed each time the trial-decrypt cascade lands there, rather than on a fixed wall-clock timer started unilaterally at the local cutover. A peer that never received the new keys keeps authenticating against `previous` and the slot stays live; without this, a fixed timer would erase the only key set that could decrypt the peer's frames, producing a permanent silent decrypt failure on a live data path. A peer that never catches up is handled by the existing FSP session liveness path rather than by silent decrypt failure. The lost-handshake liveness gap is closed separately by retransmitting the third rekey handshake message until the peer is confirmed on the new keys, with a bounded retry budget after which the rekey cycle is cleanly abandoned and retried on the next timer. Adds unit tests covering the trial-decrypt cascade (epoch selection, promotion on pending decrypt, reordered old-epoch stragglers after cutover, per-slot replay-window integrity), the msg3 retransmission lifecycle, and the peer-progress-aware drain retirement. |
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 Martti MalmiandJohnathan Corgan
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0a5c367edc |
data-plane perf overhaul: off-task encrypt + decrypt, GSO, connected UDP
Moves both AEAD layers (ChaCha20-Poly1305, one round per layer per packet) plus the sendmsg syscall off the rx_loop task onto a per-shard worker pool, adds per-peer connect(2)-ed UDP with SO_REUSEPORT, and uses Linux UDP GSO (sendmsg+UDP_SEGMENT — kernel splits one super-skb into N on-the-wire datagrams in a single TX-stack walk) when packets in a batch are uniform-size. Same kernel primitive WireGuard's in-kernel module and BoringTun use to hit 2.5–3.2 Gbps single-stream. Single TCP stream on a 5-node docker-bridge mesh, 5 x 15 s x P=1: A→D: 1379 → 2708 Mbps (1.96x, RTT +0.12 ms) A→E: 1394 → 2663 Mbps (1.91x, RTT +0.11 ms) E→A: 1406 → 2624 Mbps (1.87x, RTT +0.19 ms) Static-peer pairs only — every CoV under 3%, 0 outliers, 0% ICMP loss. The ~+100 µs RTT is the worker queue handoff cost; AEAD + sendmmsg now run on a separate core in exchange. What lands: - src/node/encrypt_worker.rs: std::thread + crossbeam_channel workers; hash-by-destination dispatch pins a TCP flow to one worker so wire ordering is preserved; per-worker sendmmsg(2) batching up to 32; Linux uses sendmsg(2)+UDP_SEGMENT when packets in a group are uniform-size. - src/node/decrypt_worker.rs: receive-side mirror. Each shard owns its session's recv cipher + replay window in a thread-local HashMap (no shared RwLock/Mutex). Sessions are handed off at promote_connection and re-registered on K-bit flip / rekey cutover. - src/node/handlers/session.rs try_send_session_data_pipelined: FSP+FMP both seal in-place in the worker on one wire-buffer alloc; no intermediate inner_plaintext / fsp_payload Vecs. - src/transport/udp/connected_peer.rs + peer_drain.rs: per-peer connect(2)-ed UDP socket with SO_REUSEPORT (set on the listen socket too — without that, EADDRINUSE on activation and every packet falls back to the wildcard path); the worker sends with msg_name=NULL and the kernel uses its cached 5-tuple. Tick- driven activation in handlers/connected_udp.rs, idempotent. - src/transport/udp/mod.rs: mem::replace the recvmmsg backing buffer instead of buf.to_vec() per packet — single pointer swap, no MTU-sized memcpy. - src/protocol/link.rs SessionDatagramRef: zero-copy borrowed view used by handle_session_datagram for the bulk local-delivery path; handle_session_payload takes the borrowed payload directly (no payload[35..].to_vec()). - src/transport/mod.rs TransportAddr::from_socket_addr: collapses the two-alloc from_string(addr.to_string()) pattern to one. - src/node/handlers/rx_loop.rs: decrypt-fallback drain promoted ahead of packet_rx in the select! (TCP ACK starvation fix); interleaved fallback drain every 32 packets inside the rx burst loop. - noise::Session: send_cipher_clone / recv_cipher_clone / recv_replay_snapshot_owned / take_send_counter / accept_replay so off-task workers can hold a cloned cipher + reserved counter while the dispatcher keeps replay/counter sequencing serial. CipherState::cipher_clone returns a refcount-bumped LessSafeKey. AsyncUdpSocket: AsRawFd so workers issue raw sendmmsg / sendmsg without going through the tokio reactor. - Worker pool sizing: both default to num_cpus, overridable via FIPS_ENCRYPT_WORKERS=N / FIPS_DECRYPT_WORKERS=N. Per-peer connected UDP can be disabled via FIPS_CONNECTED_UDP=0. - src/perf_profile.rs: optional per-stage timing reporter under FIPS_PERF=1 (or FIPS_PIPELINE_TRACE=1). Off by default; zero overhead when disabled. - All cfg(unix)-gated. Windows continues on the existing tokio- based send/recv. Decrypt worker session lifecycle: - Node::unregister_decrypt_worker_session mirrors the existing register helper. Wired at the two natural sites that already iterate peers_by_index: the rekey drain-completion block in handlers/rekey.rs (drops the worker entry for the old our_index once the drain window has expired and the cache_key is unreachable to any in-flight OLD-K packet), and remove_active_peer in handlers/dispatch.rs (drops the worker entry for each of the four index slots: current, rekey, pending, previous). Only our_index is normally registered; unregister_session is fire- and-forget for missing entries, so calling unconditionally on all four slots is correct and bounds the cleanup without per- slot accounting. Without these callers the per-worker sessions HashMap and the Node's decrypt_registered_sessions set would grow monotonically per rekey on long-lived peers. Testing: - testing/static/scripts/bench-multirun.sh: multi-run iperf3 + ping bench. N reruns (default 5), median / min / max / CoV % / per-run outlier flag, avg ping RTT, ICMP loss %, TCP retransmit total. Plain client→dest labels + topology header. Pre-bench peer-convergence check (FIPS_BENCH_CONVERGE_SECS, default 15); per-path route verification via stats.bytes_sent deltas — fails fast if traffic exits via a non-static-peer link. - testing/static/docker-compose.yml: passes FIPS_ENCRYPT_WORKERS / FIPS_DECRYPT_WORKERS / FIPS_PERF through to containers for A/B benchmarking without rebuilds. - testing/static/scripts/iperf-test.sh: same plain client→dest labels + topology header (was multihop/direct/N hop, which conflated topology distance with on-wire path). - .config/nextest.toml: synthetic UDP node tests serialized through a max-threads=1 test group. Localhost handshakes drop on shared CI runners under parallel load; one-at-a-time keeps assertions reliable. - src/node/tests/spanning_tree.rs: repair_missing_edge_handshakes — retries up to 5 times for synthetic edges whose msg1 was dropped, with a drain after each edge retry instead of after each attempt's full burst. - src/node/decrypt_worker.rs::tests: two unit tests asserting WorkerMsg::UnregisterSession removes the worker-thread session HashMap entry (handle_msg_unregister_session_removes_entry) and is a no-op for never-seen cache_keys (handle_msg_unregister_session_idempotent_on_unknown_key), which is the safety invariant the unconditional unregister calls at the four index slots in remove_active_peer rely on. - src/node/encrypt_worker.rs::unix_tests pipelined_send_wire_layout_roundtrips_canonical_decoders: mirrors the encoder geometry of try_send_session_data_pipelined (no coords, the common established-session path), runs the worker's real seal + send via flush_direct_batch_sync, and decodes the resulting wire packet using only canonical receive-side decoders (EncryptedHeader::parse, SessionDatagramRef::decode, FSP header parse, noise::open). Any divergence between the hand-rolled encoder offsets (fsp_aad_offset, fsp_plaintext_offset) and the decoders fails at one of the parse / open / decode steps before the inner-plaintext assertion fires. Complements the existing fsp_preseal_runs_before_outer_fmp_seal test which covers the seal-ordering invariant with synthetic headers but does not exercise the wire-layout invariant. CHANGELOG.md [Unreleased] # Changed entry added describing the worker-pool threading model, hash-by-destination dispatch, sendmmsg/UDP_GSO, per-peer connected UDP, the operator-facing env vars, and the bench numbers above. Cherry-picks from mmalmi/master (paths translated from crates/fips-core/src/ to src/): 9b7c723, 0deb5cb, 13f7339, e036c0e, 3740a68, 3792f83, 8510193, 4910b07, e53f545, e4e2896, 5fe4af5, 1d01ada, 8c37008, e12469e, 6eb2860. Co-authored-by: Johnathan Corgan <johnathan@corganlabs.com> |
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Johnathan Corgan
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a83342cce8 | Merge maint into master (path-1 ping retry + CHANGELOG backfill) | ||
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Johnathan Corgan
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306e455513 |
rekey-test: retry strict-ping asserts on failure
The Phase 1, Phase 3, and Phase 5 strict asserts each fire a single ping per directed pair. Under low-level packet loss (e.g. 1% i.i.d. per-direction loss from a CI runner under pressure), a single-shot round-trip fails at ~2% per pair, so a 20-pair strict assert misses with probability 1 - (0.98)^20 = ~33% per phase from ICMP noise alone, well above the routing-state signal the asserts are meant to catch. ping_one gains a max_attempts parameter (default 1, preserving existing call sites). On failure it retries up to MAX_PING_ATTEMPTS-1 additional times with PING_RETRY_DELAY seconds between attempts. Per-pair worst case under the defaults (4 attempts, 1 s spacing, 5 s ping6 -W timeout) is 4*5 + 3 = 23 s; per-rep worst case scales with the failing-pair count. Successful retries log "OK (RTT, attempt N)"; exhausted retries log "FAIL (after N attempts)". The retry budget is wired into all three strict asserts: - Phase 1 final ping_all (after wait_for_full_baseline converges) - Phase 3 ping_all (post-first-rekey) - Phase 5 ping_all (post-second-rekey) The wait_for_full_baseline convergence loop itself stays single-shot. Its job is to detect when the mesh first sees a fully clean 20-pair batch, and retries inside the loop would conflate transient ping loss with still-converging routing state. No daemon code changes. |
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Martti MalmiandJohnathan Corgan
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b05c80e5f5 |
testing: add boringtun throughput benchmark and iperf ref-compare harness
New testing/boringtun/ harness runs two Cloudflare BoringTun userspace WireGuard containers with iperf3 between them, giving a single-hop userspace tunnel baseline for comparison against FIPS throughput numbers. Local WG key generation runs through the harness image so the host needs no wireguard-tools. New testing/static/scripts/iperf-compare-refs.sh builds two git refs into separate fips-test:* images via git worktree and runs the same static iperf topology against both, with RUNS-based repetition and aggregate avg/min/max reporting. testing/static/scripts/iperf-test.sh gains DURATION, PARALLEL, SETTLE_SECONDS, IPERF_TIMEOUT env knobs and a per-path iperf timeout. testing/static/docker-compose.yml selects the image under test via FIPS_TEST_IMAGE; testing/scripts/build.sh respects CARGO_TARGET_DIR. Author benchmark on aarch64 Docker Desktop: boringtun bob -> alice : 1000.13 Mbits/sec |
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Johnathan Corgan
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80fb086071 |
test(rekey): add Phase 5 settle window for post-second-rekey convergence
Phase 5's per-pair connectivity check ran immediately after the second rekey cycle, with no settle for routing reconvergence. Under GitHub-runner CPU contention, post-rekey parent-switches and coord-cache flushes can take longer than the per-ping 5s timeout for a small fraction of pairs (1-3 of 20 typically), even though the rekey mechanism itself completes cleanly. Phase 6 log analysis stays all-green on these failed runs; the failure is purely connectivity timing. Mirror Phase 3's existing 12-second settle pattern: reuse REKEY_SETTLE and emit the same banner shape. Two-line change. Cost on the success path is a fixed 12s per suite run. |
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Johnathan Corgan
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e9dd3167f2 |
test(acl-allowlist): poll log assertion to absorb XX-handshake timing race
Convert assert_log_contains from a one-shot grep snapshot into a bounded poll that retries until the pattern appears or the timeout elapses (default 15s). Same wait-with-timeout shape as wait_for_peers_exact above it in the file. The pre-existing flake on next-branch CI is structural: under XX handshake, the cross-connection tie-breaker selects which side reaches its ACL-check point first. When container-a wins the tie-breaker on the first attempt against c and d, only the outbound-handshake-context rejection fires immediately, and the inbound-handshake-context rejection only emits on a later retry when c or d's msg1 lands while a has no pending outbound. On one 2026-05-14 run the inbound rejection appeared 63ms after the test had given up. The race window is small but real. Polling the log instead of one-shot reading absorbs the millisecond-to-second variance without slowing the success path (the helper returns as soon as the pattern appears). |
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Johnathan Corgan
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6533276eda |
test(rekey): bump Phase 1 baseline-convergence headroom 36s → 60s
The Phase 1 pre-rekey baseline in `wait_for_full_baseline` occasionally times out on GitHub-hosted runners with one ping pair failing to converge inside the BASELINE_CONVERGENCE_TIMEOUT window. Phases 2–6 always pass cleanly when this happens — the rekey itself is fine, the mesh just hasn't finished spanning-tree + bloom-filter convergence by the time Phase 1 starts pinging. The wait loop returns as soon as all 20 pairs converge, so the cost on the success path is unchanged (typical local CI returns well under the old 36s). The bump only adds headroom on the failure path. Operators previously worked around this with `gh run rerun --failed`; this aims to retire that workaround for the IK/XK lines. Distinct from the next-branch XX rekey dual-init race, which is a real protocol bug tracked separately. |
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Johnathan Corgan
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32a3b58d1f |
docs(sidecar): make UDP MTU env-overridable end-to-end
The sidecar entrypoint hardcoded `udp.mtu: 1472`, the Docker-bridge IPv4 maximum (1500 MTU - 8 UDP - 20 IPv4 header). Promote it to `FIPS_UDP_MTU` (defaulting to 1472, preserving behavior) so non-Docker reuses of the example can override without editing the script. Plumb the env var through `docker-compose.yml` so a host-level setting reaches the container, and add a row to the README's env-var table. Also annotate the static-CI node template with a comment explaining the same 1472 rationale and the daemon's 1280 default. The template keeps 1472 as the literal value since the CI suite runs on a Docker bridge where that's correct. No behavior change unless the host explicitly sets FIPS_UDP_MTU. |
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 Arjen
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733ee512d3 |
chore: replace real IPs in docs and configs with placeholders
Operator-facing IPs in user-visible configs/docs (examples, tutorials, packaging, sidecar templates) are now the resolvable hostnames of the public test fleet (test-us01.fips.network, etc.) so they keep working without baking specific addresses into examples. Doc-comment and test fixtures in src/config/transport.rs use RFC 5737 TEST-NET-2 (198.51.100.1) so they cannot accidentally point at a real host. Also resyncs the openwrt-ipk fips.yaml with the common reference (merge from master) and applies the same DNS-name swap there. |
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Johnathan Corgan
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0e57216d98 |
testing: rename vps-chi to test-us01 in tor socks5-outbound scaffold
The host (217.77.8.91:443) was renamed to test-us01 some time ago (canonical name shared with packaging/common/hosts and the docs); the test scaffold's alias labels and narrative comments hadn't been updated. Pure naming cleanup, no behavior change. The continued dependency on the live external host is tracked separately. |
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Johnathan Corgan
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e471807239 |
testing/firewall: avoid SIGPIPE in drop-counter probe
The drop-counter sanity check piped `nft list table inet fips`
through `awk '/counter packets/ {print $3; exit}'`. Awk's `exit`
on first match closes the pipe, the upstream `nft list` SIGPIPEs
on its next write, `set -o pipefail` makes the pipeline return
141, and the surrounding command-substitution aborts the script
before it can assign DROP_PKTS or print the section header.
Replaces the early-exit pattern with `/counter packets/ && !seen
{ print $3; seen=1 }` — same first-match output, but awk reads
the full input so nft never SIGPIPEs.
The original form had been latent for as long as the test has
existed; recent CI runs at master tip
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Johnathan Corgan
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c412646498 |
testing: pre-create /run/fips/ in the unified test image
Mirrors systemd's RuntimeDirectory=fips so the daemon's resolve_default_socket() picks /run/fips/control.sock inside containers, matching production layout and the path that the chaos sim harness (testing/chaos/sim/control.py) probes. Without this, the resolver falls through to /tmp/fips-control.sock (no /run/fips, no XDG_RUNTIME_DIR), the daemon binds there, and the harness's hardcoded /run/fips/control.sock probe returns FileNotFoundError on every node. chaos-bloom-storm then fails its bloom_send_rate assertion with start=0 nodes, end=0 nodes; other chaos scenarios pass only because their tolerances absorb the empty samples. Production hosts always have /run/fips materialized by the fips.service unit's RuntimeDirectory directive before the daemon starts, which is why the regression hit only the containerized test path. Verified locally with chaos-bloom-storm: max per-node delta 27 <= ceiling 30 over the trailing 30s window. |
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Johnathan Corgan
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b3a1fb464f |
testing: add bloom-storm chaos scenario
Six-node depth-4 mesh with an induced upstream parent flap. Asserts a
trailing-window ceiling on per-node `stats.bloom.sent` and a sanity
floor on parent-switch count over a ~3-4 min observation window.
Guards against the regression class where a spanning-tree update that
changes only an internal path edge (no root or depth delta) fails to
be properly contained and instead propagates to leaves as a sustained
bloom-traffic oscillation, visible only at fleet scale and only after
several minutes of uptime.
Adds a new chaos primitive (`link_swap`) for deterministic asymmetric
link-cost flapping and a post-run assertion framework with two
checks:
- `bloom_send_rate.max_per_node`: trailing-window ceiling on the
`show_bloom` stats counter delta. Calibrated against the
post-mortem reproduction harness data (per-variant counter table
against pre-fix vs post-fix binaries).
- `min_parent_switches.min_total`: sanity guard against a
misconfigured harness where the flap inducer fires but the
topology never produces a real parent-switch event (e.g., wrong
root election from a different seed). Without this, the
bloom-rate assertion would trivially pass on any binary
including a regressed one.
The runner exits 3 on assertion failure (alongside 0 success and 2
panic-detected). Threshold derivation is documented in the scenario
README; the seed pin is also documented there since smallest-NodeAddr
root election is sensitive to the pubkey hash ordering.
Wired into ci-local.sh's chaos pool and the GitHub CI chaos matrix.
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Johnathan Corgan
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43639fecb9 |
Add stun-faults integration suite covering STUN failure/recovery
Cover the previously untested STUN client behavior under server
unreachable, response timeout, and packet loss. The 3 NAT scenarios
test happy paths only; if the STUN client mishandled a fault (panic,
hang, missing log signal), it would silently degrade NAT traversal
without surfacing in CI.
testing/nat/scripts/stun-faults-test.sh (new, 244 lines):
Phase 1 (drop, ~12s): tc prio + netem loss 100% band + u32 filter on
dst 172.31.10.40 udp 3478. Falls back to iptables -j DROP if netem
isn't available. Asserts daemon process alive, no panic, log line
matching stun.*(timed?out|fail|fallback|unreachable|no address)
within the phase window.
Phase 2 (delay then clear, ~17s): tc qdisc add dev eth0 root netem
delay 5000ms for 7s, then deleted. 10s settle. Asserts process alive,
no panic, AND "STUN observation succeeded" log line after clear
(recovery proof).
Phase 3 (kill, ~12s): docker stop fips-nat-stun. Asserts process
alive, no panic, fault evidence in logs.
testing/nat/docker-compose.yml: stun-faults profile adds two
services. stun-fault-node is fips-test:latest on shared-lan at
172.31.10.50. stun-fault-shim is fips-test:latest sharing the
daemon's network namespace via network_mode: service:stun-fault-
node, with cap_add NET_ADMIN, NET_RAW; entrypoint sleep infinity so
the script can docker exec into it. Reuses existing stun
(172.31.10.40:3478) and relay (172.31.10.30:7777) services.
testing/nat/scripts/generate-configs.sh: 3-hunk update so the
generator accepts the new scenario and points its peer config at the
existing relay/STUN. The peer is configured for connect_peer() so
the daemon retries traversal on a loop, repeatedly invoking
observe_traversal_addresses() — which is the fault-injection target.
testing/ci-local.sh: STUN_FAULTS_SUITES=(stun-faults) array,
run_stun_faults runner, list/integration-loop/--only-dispatch hooks.
.github/workflows/ci.yml: matrix row {suite: stun-faults, type:
stun-faults} + 3 steps gated on matrix.type == 'stun-faults' between
nostr-publish-consume and any chaos suite. Reuses fips-linux
artifact + fips-test:latest image.
Approach: script-driven via docker exec stun-fault-shim. Sharing
network namespace means tc rules on the shim's eth0 affect daemon
egress. No timing logic in the shim itself.
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Johnathan Corgan
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33a2063672 |
Add firewall integration suite covering fips0 default-deny baseline
End-to-end exercise the v0.3.0 nftables firewall baseline so the
security claim — "services on fips0 are not exposed by default" — is
validated in CI rather than by operator opt-in. The packaging postinst
state is pinned by the deb-install matrix; this suite pins the actual
ruleset behavior.
testing/firewall/ — new directory mirroring the acl-allowlist
precedent (kept in its own directory, not extending testing/static):
docker-compose.yml (52 lines): two FIPS containers on bridge
172.32.0.0/24, peered over UDP/2121. node-b mounts
packaging/common/fips.nft RO at /etc/fips/fips.nft and a generated
drop-in services.nft at /etc/fips/fips.d/.
test.sh (247 lines): four-case asserter
(a) curl from node-a to node-b:8000 → DROP (port not allowlisted;
terminal counter drop fires)
(b) curl from node-b to node-a:8000 → 200 OK (reply traverses
node-b's ct state established,related accept)
(c) ping6 a→b → success (icmpv6 echo-request accept)
(d) nc -z a→b:22 → success (drop-in tcp dport 22 accept honored
via include "/etc/fips/fips.d/*.nft")
Plus drop-counter check after case (a) confirms the dropped
connection actually hit the chain's terminal counter drop.
generate-configs.sh (111 lines): mirrors acl-allowlist generator,
produces the drop-in services.nft + fips configs.
README.md (111 lines): how to run, expected output, design notes.
.gitignore: ignores generated-configs/.
testing/ci-local.sh: FIREWALL_SUITES=(firewall) array + run_firewall
runner; dispatch in run_integration and run_suite mirroring
run_acl_allowlist.
.github/workflows/ci.yml: matrix row {suite: firewall, type:
firewall} + 3 steps gated on matrix.type == 'firewall' between
acl-allowlist and gateway. Reuses fips-linux artifact + fips-test:
latest image.
Activation note: the unified test image does not run systemd, so
test.sh invokes the fips-firewall.service ExecStart
(/usr/sbin/nft -f /etc/fips/fips.nft) directly. The systemd-unit
enablement path is covered by the deb-install matrix; this suite
exercises what the unit configures, not how it gets started.
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Johnathan Corgan
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5611e976ad |
Add nostr-publish-consume integration suite
Cover the previously untested overlay advert publish/relay/consume
round-trip. The bilateral publish/subscribe path was a v0.3.0 release
gap: malformed adverts could panic consumers, broken signatures could
go undetected, and reverse-direction subscription was unverified.
Adds testing/nat/scripts/nostr-relay-test.sh (290 lines):
Phase 1+2 (combined): wait_for_peers on both nodes; pass on
bidirectional advert publish/subscribe round-trip + dial completed;
ping6 both directions confirms TUN-level reachability.
Phase 3 (malformed advert resilience): stdlib-only Python WebSocket
client publishes a syntactically valid Schnorr-signed Kind-37195
event whose `content` is gibberish (cannot deserialize as
OverlayAdvert). The relay enforces BIP-340 signature validity, so the
event reaches the consumers (rather than being dropped at the relay)
— a trivially-junk content payload is the right adversarial input.
Required ~80 lines of stdlib-only secp256k1 + BIP-340 in the script
(no new container deps). Asserts pidof fips on both nodes after the
publish, scans logs for panic markers, re-pings to prove the existing
peer link survives.
testing/nat/docker-compose.yml: new profile nostr-publish-consume
with two daemon services (nostr-pub-a 172.31.10.20, nostr-pub-b
172.31.10.21) on shared-lan, reusing the existing strfry relay
(172.31.10.30:7777) and STUN service (172.31.10.40:3478).
testing/nat/scripts/generate-configs.sh: 2-line allowlist update so
the new scenario flows through the existing config generator (rather
than forking a parallel one). Generated node-{a,b}.yaml + npubs.env
smoke-tested cleanly.
testing/ci-local.sh: NOSTR_RELAY_SUITES=(nostr-publish-consume)
array, run_nostr_publish_consume runner, dispatch in run_integration
and run_suite. Mirrors existing run_nat shape.
.github/workflows/ci.yml: one matrix row + 3 steps in the integration
job, gated on matrix.type == 'nostr-publish-consume'. Consumes the
same fips-linux artifact and fips-test:latest image as the existing
NAT suites.
Tor/TCP transport variants kept out of v0.3.0 scope; the structure
leaves room for nostr-publish-consume-tcp/-tor siblings later without
disturbing this baseline.
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Johnathan Corgan
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d822ee8b3c |
Validate packaging/common/fips.nft syntax in CI build phase
Add nft -c -f packaging/common/fips.nft syntax-check to both testing/ci-local.sh and .github/workflows/ci.yml so a regression in the 128-line firewall ruleset surfaces in the build gate rather than when an operator activates fips-firewall.service. testing/ci-local.sh: first step inside run_build(), before cargo build --release. Uses command -v nft for prereq detection mirroring the existing cargo-nextest pattern; records as nft-syntax in RESULTS. Operator-facing message points at apt install nftables when nft is absent. .github/workflows/ci.yml: nftables added to the build job's existing Linux apt-install step; new Validate fips.nft syntax (Linux only) step gated on runner.os == 'Linux' (skips macOS/Windows matrix slots, runs on ubuntu-latest and ubuntu-24.04-arm). Note: nft -c -f requires netlink cache initialization on modern nftables even in check mode, so both invocations use sudo (safe in CI's passwordless sudo, and operator's typical local sudo). Without sudo, nft fails with "cache initialization failed: Operation not permitted" before reaching ruleset parse. |
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Johnathan Corgan
|
b8b1bb03a0 |
Cover UDP forward, multi-forward, and multi-client paths in gateway-test
Extend the gateway integration suite with three previously unexercised runtime paths. All three share testing/static/scripts/gateway-test.sh and testing/static/docker-compose.yml so they land as one commit. 6A — UDP port forwarding runtime path. Add udp 18081 -> [fd02::20]:8081 to inject_gateway_config() and a phase-7 case where gw-client runs an inline Python UDP echo server bound [::]:8081 and gw-server sends a UDP probe to [GW_MESH_IP]:18081 via inline python3, asserting the echoed payload prefix. The config layer already accepted proto: udp (test_port_forwards_same_port_different_proto_ok) but the UDP NAT rule shape and conntrack handling differ from TCP and were unverified. Uses Python rather than socat because fips-test:latest does not ship socat; nc -u IPv6 round-trip semantics are messier than a Python one-liner. 6B — Second simultaneous TCP forward. Add tcp 18082 -> [fd02::20]:8081 alongside the existing 18080 forward. Phase 7 now greps the daemon's nft DNAT table for all three rules (18080, 18082, 18081) and runs HTTP fetches through both TCP forwards with distinct backend payloads (inbound-forward-ok vs inbound-forward-ok-2) so a misrouted response fails the assertion. 11A — Concurrent multi-client flows. Add gw-client-2 service to docker-compose mirroring gw-client (IPv6 fd02::21, IPv4 172.20.1.21). Phase 3 sets the fd01::/112 route on both. Phase 4 issues DNS lookups from both, asserts they receive distinct virtual IPs, and queries the gateway control socket (show_mappings) to confirm exactly 2 active mappings (5-attempt retry loop tolerates snapshot-publish lag). Phase 5 launches both curl requests concurrently as background processes, asserts each response. Validates concurrent NAT mappings, pool contention, proxy NDP under simultaneous LAN-client traffic — all real-world deployment shape that was not pinned. Phase 8 reclamation timing unchanged (TTL=5s, grace=5s, 25s wait covers both mapping ticks generously even with a slight stagger). |
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Johnathan Corgan
|
1d8e698b57 |
Assert nftables firewall baseline postinst state in deb-install matrix
Extend testing/deb-install/test.sh per-distro container test loop with 5 new PASS assertions covering the v0.3.0 nftables firewall baseline that ships installed-but-disabled (operator opt-in): 1. fips-firewall.service unit present at /lib/systemd/system/ 2. fips-firewall.service disabled by default (is-enabled = 'disabled') 3. /etc/fips/fips.nft exists AND is registered as a dpkg conffile 4. /etc/fips/fips.d/ drop-in directory present with mode 755 root:root 5. fips.nft includes the drop-in glob /etc/fips/fips.d/*.nft Assertions slot in between the existing fips-dns service-state check and the simulated-boot service-start block. Each runs against every distro in the existing matrix (debian12 / ubuntu24 / ubuntu26). The security claim — services on fips0 are not exposed by default — remains end-to-end-validated separately by the testing/firewall/ suite. This commit specifically pins the static install state so packaging regressions surface in the per-push deb-install gate rather than at operator opt-in time. |
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Johnathan Corgan
|
a41f80a776 |
Tighten clippy gate to --all-targets --all-features and clean up
The local ci-local.sh and the GitHub CI clippy invocations both used `cargo clippy --all -- -D warnings`, which only checks lib + bin targets. Test code, integration tests, and benches were not lint-gated. Three pre-existing clippy errors lurked in test modules as a result (two field_reassign_with_default in config tests, one items_after_test_module in stun.rs). Tighten both invocations to `cargo clippy --all-targets --all-features -- -D warnings` so the gate covers everything cargo can build, and fix the three exposed errors: - src/config/mod.rs: rewrite two test-only `Config::default()` + field-reassign sites to struct-update syntax. - src/discovery/nostr/stun.rs: move helper `random_txn_id` above the `#[cfg(test)] mod tests` block. Also adds a dedicated Clippy job to the GitHub CI workflow so the strict gate runs on every PR (the workflow had no clippy job before; clippy ran only via testing/ci-local.sh on operator machines). No behavior changes; lint hygiene + CI hardening only. |
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Johnathan Corgan
|
96c6b7dea8 |
Admit rekey msg1 from established peers when addr forms differ
Companion to the ethernet `accept_connections: false` rekey-deadlock fix from earlier this release: the same dual-init failure mode shows up over UDP when peers register by hostname, and the existing addr_to_link-only carve-out in `should_admit_msg1` doesn't cover it. The carve-out's first predicate keys `addr_to_link` by the literal `TransportAddr` that `initiate_connection` inserted, which is the hostname-form when a peer config carries a hostname (e.g., `core-vm.tail65015.ts.net:2121`). Inbound packets always arrive with numeric source addrs because `udp_receive_loop` builds the `TransportAddr` from the `SocketAddr` the kernel reports via `recvfrom`. `TransportAddr` equality is byte-exact, so the two forms don't match and the lookup misses. With `udp.accept_connections: false` (or `udp.outbound_only: true`, which forces it false) the gate then rejects the rekey msg1 from an established peer. The dual-init tie-breaker stalls because the loser side never produces msg2; both sides retry indefinitely and the winner side keeps logging "Dual rekey initiation: we win, dropping their msg1" at 1Hz. The earlier ethernet fix didn't generalize to this variant because ethernet TransportAddrs are always numeric MAC bytes — both the config-time form and the inbound-arrival form match identically. Add a second predicate to `should_admit_msg1`: an active peer's `current_addr()` matching `(transport_id, remote_addr)`. `current_addr` is updated and refreshed from inbound encrypted-frame source addrs (`handlers/encrypted.rs`), which are always numeric `SocketAddr`-form, so this catches the established peer regardless of how its `addr_to_link` key was originally inserted. The fast `addr_to_link` check stays first; the iteration over peers is bounded by peer count and only runs when the first predicate misses. Regression coverage in this commit: - Unit test `test_should_admit_msg1_admits_rekey_when_addr_form_differs` in `src/node/tests/handshake.rs`. Constructs the failing scenario in-process: `addr_to_link` populated with hostname-form key, peer's `current_addr` at the resolved numeric form, query with numeric form. Without the new predicate this fails immediately. - New integration topology `rekey-outbound-only` plus matching docker-compose profile. Same 5-node mesh shape as `rekey-accept-off` but `inject-config` sets `udp.outbound_only: true` on node-b and rewrites node-b's peer-c address from the numeric docker IP to the docker hostname (`node-c:2121`), reproducing the production hostname-vs-numeric mismatch. The test asserts no sustained "Dual rekey initiation: we win" log lines on any node (>10 = bug) and the existing rekey health checks catch the connectivity loss the loop produces. - `testing/ci-local.sh` and `.github/workflows/ci.yml` extended to run the new variant in the local sweep and the GitHub CI integration matrix alongside `rekey` and `rekey-accept-off`. Verified locally: full `bash testing/ci-local.sh` sweep passes 29/29 suites (23m 12s) with the new variant green; 1084 unit tests pass. |
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Johnathan Corgan
|
e641eb5b5f |
Drop the nostr-discovery cargo feature flag
Make Nostr-mediated overlay discovery unconditional, mirroring the philosophy of PR #79's collapse of the tui/ble/gateway features in favor of platform cfg gates. nostr / nostr-sdk are pure Rust over WebSockets/TCP, so they build cleanly on every FIPS-supported platform — there is no need for the parallel feature gate. The flag was already in `default = [...]`, so no behavior change for anyone using `cargo build` without `--no-default-features`. Operators who explicitly disabled the feature will now find Nostr code present in the binary; the runtime check `node.discovery.nostr.enabled` still controls whether the runtime starts. Cargo.toml: - Remove the `[features]` table entirely. - Drop `optional = true` from `nostr` and `nostr-sdk`. Source: 27 cfg sites collapsed across 5 files — `src/discovery.rs`, `src/discovery/nostr/mod.rs`, `src/node/handlers/rx_loop.rs`, `src/node/lifecycle.rs`, `src/node/mod.rs`. Two `#[cfg(not(feature = "nostr-discovery"))]` fallback blocks (the udp:nat-without-runtime debug-log path and the "feature not compiled in" warning at startup) were removed as dead code; the always-on path already handles the missing-runtime case via `nostr_discovery: Option<NostrDiscovery>`. Packaging and tooling: - `packaging/openwrt-ipk/Makefile`: drop a stale `--features gateway` flag (the `gateway` feature was already removed in PR #79; this was a leftover that the build path tolerated only because cargo ignored unknown feature names). - `testing/scripts/build.sh`: drop `DEFAULT_CARGO_BUILD_ARGS=(--features nostr-discovery)`; defaults are empty. - `packaging/common/fips.yaml`: drop the "requires the nostr-discovery feature" comment from the discovery section. Bundled cleanup: - Apply `cargo clippy --fix` against three pre-existing warnings in `src/discovery/nostr/runtime.rs` and `src/discovery/nostr/stun.rs` (collapsed `if let Some` chain; two redundant `as i32` casts). These were always present but masked when the feature gate was off; they surface now that the code is unconditionally compiled. - `cargo fmt` settled two minor formatting drift sites in `src/bin/fips-gateway.rs` and `src/config/mod.rs`. Tests: 1083 passed, 0 failed, 4 ignored. clippy clean. fmt clean. |
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Johnathan Corgan
|
37c2973e2f |
Test infrastructure overhaul: gateway robustness + full CI coverage
Single combined commit covering five interlocking pieces of test and CI work that landed during the v0.3.0-prep cycle. ## fips-gateway robustness - src/bin/fips-gateway.rs DNS upstream probe converted from a 3-second hard-fail to a bounded retry loop (5 attempts × 1s timeout, 1s sleep between attempts; ~10s worst case). Covers the cold-boot race where the daemon's TUN is up but the DNS responder at [::1]:5354 is still binding. Each failed attempt logs at INFO. In production the binary's retry is the live recovery mechanism; with retry it recovers silently instead of relying on Restart=on-failure (~5s blip + spurious ERROR per cycle). - packaging/debian/fips-gateway.service `ExecStartPre` now waits up to 30 seconds for the daemon's `fips0` TUN to appear before exec'ing the gateway binary. Eliminates the cold-boot race where the gateway exits with `fips0 interface not found` and recovers via `Restart=on-failure`, producing a 5-second blip and a spurious error log per restart cycle. - testing/docker/entrypoint.sh gateway-mode waits up to 30s for the daemon's DNS responder to bind [::1]:5354 (probes once per second with `dig @::1 -p 5354 ... test.fips`) before exec'ing fips-gateway. Belt-and-suspenders with the binary's own retry: in CI we want deterministic startup ordering. On timeout, fall through so the binary's probe reports the definitive error. ## Test infrastructure DNS bind migration to ::1 After session 359's daemon DNS-bind default flipped from `127.0.0.1` to `::1` (the production fix for ISSUE-2026-0002), the static-test infrastructure was carrying a stale workaround that overrode the default back to IPv4 loopback. The fips-gateway integration test exposed the divergence: the gateway probes its DNS upstream at `[::1]:5354` (production default) while the daemon was binding `127.0.0.1:5354` from the template override — IPv6-explicit sockets do not accept v4-mapped traffic, so the upstream probe exhausted retries and the gateway exited. - Drop the explicit `bind_addr: "127.0.0.1"` line from every test config that emits it: testing/static/configs/node.template.yaml, testing/chaos/configs/node.template.yaml, the sidecar heredoc in testing/docker/entrypoint.sh, testing/acl-allowlist/generate-configs.sh (six per-node blocks), testing/nat/scripts/generate-configs.sh, and the four tor templates under testing/tor/. Daemon picks up its production `::1` default. - Flip the dnsmasq forwarder for `.fips` in testing/docker/Dockerfile from `127.0.0.1#5354` to `::1#5354` so dnsmasq on the shared test image continues to reach the daemon. Template and Dockerfile must move together since most static suites resolve `<npub>.fips` via the test-image dnsmasq. ## rekey-accept-off integration variant + UDP unit test - New `rekey-accept-off` topology and docker-compose profile under testing/static/. 2-node variant where node-b runs with `udp.accept_connections: false`. Pins the regression class that ISSUE-2026-0004 fixed (cross-connection winner's rekey msg1 was being filtered by the accept_connections gate, breaking rekey). - testing/static/scripts/rekey-test.sh accepts REKEY_TOPOLOGY and REKEY_ACCEPT_OFF_NODES env vars; its inject-config subcommand applies the per-node `udp.accept_connections: false` edit, and the test asserts no sustained "Dual rekey initiation" log lines. - New UDP variant of `should_admit_msg1` admit-rekey unit test in src/node/tests/handshake.rs. ## ci-local.sh full integration coverage - New runner functions and dispatcher entries for `acl-allowlist`, `nat-cone` / `nat-symmetric` / `nat-lan`, `rekey-accept-off`, `dns-resolver`, `deb-install`. Each integrates with the existing summary tracking via `record`. - New `--with-tor` flag (off by default) gates `tor-socks5-outbound` and `tor-directory-mode` runners. Tor stays opt-in because both harnesses depend on the live Tor network and would introduce a flake source unrelated to the FIPS code. - New suite arrays (`ACL_SUITES`, `NAT_SUITES`, `DNS_RESOLVER_SUITES`, `DEB_INSTALL_SUITES`, `TOR_SUITES`) drive both the default sweep and `--list` output. - `run_suite` extended to accept the new suite names for `--only` invocations. ## GitHub CI matrix expansions - `gateway` matrix entry runs testing/static/scripts/gateway-test.sh against the existing docker-compose `gateway` profile. - `rekey-accept-off` matrix entry exercises the new topology with REKEY_ACCEPT_OFF_NODES=b. - `deb-install` matrix (debian12 + ubuntu24 + ubuntu26) runs testing/deb-install/test.sh with privileged systemd containers. ~5-7 min cold cache, ~2 min warm per distro. Self-contained: builds its own .deb in a Debian 12 cargo-deb builder image; does not depend on the build job's pre-built artifact. - `dns-resolver` matrix entry runs the full 13-scenario harness (per-distro systemd resolver-backend tests + real-fips end-to-end scenarios) in a single job. Pins the production DNS bind path that ISSUE-2026-0002 lived in. ~7-12 min warm, ~12-15 min cold. Verified locally: full `bash testing/ci-local.sh` sweep passes, including 5/5 deb-install distros and all 13 dns-resolver scenarios. Tor-inclusive sweep (`--with-tor`) verified in a follow-up run. |
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Johnathan Corgan
|
bf77ececad |
Fix DNS responder silent-drop on systemd-resolved deployments
The previous default configured systemd-resolved with `resolvectl dns fips0 [<fips0_addr>]:5354`, intended to bypass an Ubuntu 22 systemd 249 interface-scoping bug. That target collides with the daemon's mesh-interface filter on Linux: when an IPv6 packet's destination belongs to a non-loopback interface, the kernel attributes the packet to that interface in IPV6_PKTINFO (ipi6_ifindex == fips0) even though loopback delivery is used (tcpdump shows lo). The mesh-interface filter sees arrival_ifindex == mesh_ifindex and silently drops every query at trace level — invisible to operators at the default debug level. Net effect on stock deployments: every .fips query on systemd-resolved hosts was silently dropped. Daemon side ----------- - Default `dns.bind_addr` changes from "::" to "::1" (IPv6 loopback only). The mesh-interface filter is then defanged on the default path because loopback isn't reachable from mesh peers. The filter remains in place defensively for operators who explicitly bind "::" to expose a mesh-reachable responder. fips-dns-setup backend unification ---------------------------------- - New `try_global_drop_in` backend writes /etc/systemd/resolved.conf.d/fips.conf with DNS=[::1]:5354 and Domains=~fips. Inserted ahead of `try_resolvectl` in the dispatch chain. The standard loopback path has no interface scoping, so ipi6_ifindex reports lo and the filter passes. - All other backends now target [::1]:5354 to match the daemon's default IPv6-loopback bind: - try_dns_delegate writes DNS=[::1]:5354 - try_dnsmasq writes server=/fips/::1#5354 - try_nm_dnsmasq writes server=/fips/::1#5354 - Fixed dns-delegate file path: was /etc/systemd/dns-delegate/, must be /etc/systemd/dns-delegate.d/ (with .d suffix). systemd-resolved silently ignored the previous path. - fips-dns-teardown handles the new global-drop-in backend in cleanup. - The legacy resolvectl per-link backend stays as a fallback, documented to require careful daemon bind_addr coordination. fips-gateway upstream pairing ----------------------------- - gateway.dns.upstream default changes from 127.0.0.1:5354 to [::1]:5354 to match the daemon's default bind. Linux IPv6 sockets bound to explicit ::1 do not accept v4-mapped traffic, so the old default would have caused the gateway's startup DNS reachability probe to time out and systemd to restart-loop the service. - Operators who set a non-default daemon `dns.bind_addr` must also set `gateway.dns.upstream` to match — documented inline. Documentation ------------- - packaging/common/fips.yaml and packaging/openwrt-ipk fips.yaml examples updated; rationale for the bind_addr choice and the daemon/gateway pairing recorded inline. Test coverage ------------- - testing/dns-resolver/test.sh: real-fipsd end-to-end scenario added. Builds fipsd in a Debian 12 builder image (cached), runs the daemon with a real TUN in a privileged container, configures DNS via the setup script, and asserts `dig @127.0.0.53 AAAA <npub>.fips` returns AAAA. Refactored as a parameterized helper running across Debian 12/13 and Ubuntu 22/24/26 (5 e2e scenarios). Backend-aware assertions: on systemd >= 258 the expected backend is dns-delegate; on older systemd it's global-drop-in. Strict content checks fail CI on any [::1]:5354 drift. fips-gateway also exercised in the debian12 scenario to lock the gateway-upstream pairing. Renamed all "fipsd" references to "fips" (project convention). - testing/deb-install/ (new harness): builds the actual .deb via cargo-deb in a Debian 12 builder image (cached), installs via apt across each target distro, verifies maintainer scripts, conffile placement, binary placement, and end-to-end .fips resolution after start. Also exercises fips-gateway against the installed daemon to verify the gateway/daemon default pairing on a real .deb path. - This is the test layer that was missing — the previous harness only verified config files were written, never that queries reached the daemon. Verified: dns-resolver 78/78 assertions, deb-install 55/55 assertions across all 5 distros (debian:12, debian:trixie, ubuntu:22.04, ubuntu:24.04, ubuntu:26.04). |
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34e00b9f6e |
Add Nostr-mediated overlay discovery and UDP NAT traversal (#53)
Optional peer discovery and NAT hole-punching path gated behind a new
`nostr-discovery` cargo feature. Nodes publish signed overlay endpoint
adverts to public Nostr relays, consume peer adverts to populate
fallback dial addresses, and use STUN-assisted UDP hole punching with
NIP-59 gift-wrap offer/answer signaling to establish direct UDP paths
between NATed peers. Once a punched socket is up, it is handed into
the existing FIPS UDP transport and the standard Noise/FMP session
stack takes over unchanged.
The cargo feature is in the default feature set
(`default = ["nostr-discovery"]`) so stock builds include it; a
build that explicitly disables default features (or selects a
feature set without `nostr-discovery`) does not link the nostr /
nostr-sdk crates and does not emit a no-op poll in the tick loop.
Runtime behavior is independently gated by
`node.discovery.nostr.enabled`, which defaults to false; if the
config enables Nostr on a non-feature build, startup logs a
warning and continues without it.
== Cargo feature and dependencies
- New cargo feature `nostr-discovery = ["dep:nostr", "dep:nostr-sdk"]`.
Not in the default feature set.
- New optional Linux-only dependencies: `nostr 0.44` (features: std,
nip59) and `nostr-sdk 0.44`. Gift-wrap unwrap is hand-rolled in
`src/discovery/nostr/signal.rs` rather than relying on the SDK's
rumor-author check, which FIPS sidesteps by trusting `seal.pubkey`
exclusively.
== Wire format
Overlay advert event: `kind 37195`, parameterized replaceable
(NIP-01 application-defined replaceable range 30000-39999), with
`d = "fips-overlay-v1"`. The digits visually spell FIPS (7=F, 1=I,
9=P, 5=S); a relay survey confirmed the kind is unused.
Advert content carries the version tag, endpoint list
(`udp|tcp|tor` + addr), optional signal-relay and stun-server
metadata, and `issuedAt` / `expiresAt` timestamps. Endpoint
`addr: "nat"` is the sentinel that triggers traversal on the peer
side. NIP-40 `expiration` tag bounds staleness on permanent
shutdown. Lifecycle relies on parameterized-replaceable
supersession; the daemon does not emit NIP-09 kind-5 deletes —
strict relays (Damus, Primal) race delete-against-replace and can
silently drop the replacement.
Gift-wrapped signal event: `kind 21059`. Punch packets carry magic
values `PUNCH_MAGIC` / `PUNCH_ACK_MAGIC`, a sequence number, and a
16-byte session hash.
== Discovery surface
- `src/discovery.rs` (always compiled)
- `EstablishedTraversal`: bound UDP socket + selected remote +
peer npub + optional transport name/config tuning overrides.
- `BootstrapHandoffResult`: returned on successful handoff —
allocated transport id, local/remote addrs, peer NodeAddr,
session id.
- `src/discovery/nostr/` (`#![cfg(feature = "nostr-discovery")]`)
- `types.rs`: wire and control types described above. `ADVERT_KIND`
constant. `BootstrapError` enumerates failure modes (disabled,
missing advert, missing NAT endpoint, no usable relays, invalid
advert, invalid npub, signal timeout, punch timeout, replay,
STUN failure, protocol, nostr, io, serde, event-parse).
- `runtime.rs`: `NostrDiscovery` coordinator. Owns the shared
nostr-sdk `Client`, subscribes to advert + signal event kinds,
maintains a bounded advert cache and a bounded seen-sessions
replay set, drains `BootstrapEvent::{Established, Failed}` for
the node to consume, exposes `update_local_advert`,
`request_connect`, `advert_endpoints_for_peer`,
`cached_open_discovery_candidates`, and `shutdown`.
- `signal.rs`: NIP-59 gift-wrap encode/decode. Outbound wraps are
built against per-attempt ephemeral keys; inbound events are
unwrapped against the node identity.
- `stun.rs`: RFC 5389/8489 Binding Request client with
XOR-MAPPED-ADDRESS parsing for both IPv4 and IPv6; used only to
observe the initiator's own reflexive address against its
locally configured STUN list (peer-advertised STUN is
informational, never an egress target).
- `traversal.rs`: per-attempt candidate-pair punch planner.
Allocates a fresh `0.0.0.0:0` UDP socket per attempt, enumerates
LAN-private and ULA interface addresses alongside the STUN
reflexive address, schedules probe/ack exchanges at the
configured interval for the configured duration, and picks the
first candidate pair that authenticates end-to-end.
Strategy ordering is Reflexive↔Reflexive first, then LAN, then
Mixed. The STUN-observed pair is the only candidate that's reliable
across arbitrary network topologies; trying it first prevents the
planner from latching onto a misleading host-candidate path before
the reflexive path gets a chance. There is no catch-all
Local↔Local strategy: a previous design that paired every local
host candidate from one side with every local host candidate from
the other could declare success on a one-way reachable asymmetric
L3 path (corporate VPN, Tailscale subnet route, overlapping private
address space), only for the FMP handshake to stall because the
return path didn't match. The legitimate `Lan` strategy still pairs
candidates that share a subnet.
== Configuration surface
`node.discovery.nostr.*` (`NostrDiscoveryConfig`), all `serde(default)`
with `deny_unknown_fields`:
- `enabled` (default false), `advertise` (default true)
- `advert_relays`, `dm_relays`, `stun_servers`: defaults are
`wss://relay.damus.io`, `wss://nos.lol`, `wss://offchain.pub`
for both relay lists, and Google / Cloudflare / Twilio for STUN.
Operators are expected to override for production. Other
verified-working public relays for reference:
`nostr.bitcoiner.social`, `nostr-pub.wellorder.net`,
`nostr.oxtr.dev`, `nostr.mom`.
- `app` (default `"fips-overlay-v1"`), `signal_ttl_secs` (120)
- `policy`: `NostrDiscoveryPolicy::{Disabled, ConfiguredOnly (default),
Open}` — controls whether advert-derived endpoints are consumed
only for peers carrying `via_nostr = true`, or also for
non-configured peers within a budget cap.
- `share_local_candidates` (default false) — when false, the offer's
`local_addresses` list is empty and peers see only the reflexive
address. Enable per-node only for genuinely same-LAN deployments;
off-by-default eliminates the misleading-path failure mode for
the common case where peers are not on the same broadcast domain.
- `open_discovery_max_pending` (64) — caps queued open-discovery
retries; bounded by available outbound slots.
- `max_concurrent_incoming_offers` (16) — semaphore against offer
spam; excess offers are debug-logged and dropped.
- `advert_cache_max_entries` (2048) and `seen_sessions_max_entries`
(2048) — bound memory under ambient relay volume; overflow
evictions are debug-logged.
- `attempt_timeout_secs` (10), `replay_window_secs` (300)
- `punch_start_delay_ms` (2000), `punch_interval_ms` (200),
`punch_duration_ms` (10000)
- `advert_ttl_secs` (3600), `advert_refresh_secs` (1800)
Per-peer and per-transport flags:
- `PeerConfig.via_nostr: bool` — when true (and Nostr is enabled),
advert-derived addresses are appended as fallback dial candidates
after static addresses for that peer.
- `PeerConfig.addresses` is now `serde(default)` and may be empty
when `via_nostr: true`; validation requires at least one of the
two to be present per peer, and the error message names the
peer's npub.
- `UdpConfig.advertise_on_nostr: Option<bool>` and
`UdpConfig.public: Option<bool>` — UDP transports can be
advertised either as direct `host:port` (public = true) or as the
`addr: "nat"` sentinel that triggers rendezvous on the peer side.
- `TcpConfig.advertise_on_nostr` and `TorConfig.advertise_on_nostr`
— TCP and Tor onion endpoints can be advertised as directly
reachable.
- A reserved peer address `transport: udp, addr: "nat"` parses without
special-casing in YAML and routes through the bootstrap runtime.
Cross-field validation (`Config::validate`, called from `Node::new`
and `Node::with_identity`):
- Any transport with `advertise_on_nostr = true` requires
`node.discovery.nostr.enabled = true`.
- Any peer with `via_nostr = true` requires
`node.discovery.nostr.enabled = true`.
- A non-public UDP advert (`advertise_on_nostr = true`,
`public = false` — i.e. `udp:nat`) additionally requires at least
one `dm_relay` and at least one `stun_server`.
Surfaced as `ConfigError::Validation`.
== Node integration
`src/node/lifecycle.rs` is the main integration point.
- At node start (after transports are up, before TUN), if Nostr is
enabled and the feature is compiled in, `NostrDiscovery::start` is
invoked, the initial local overlay advert is built from the live
transport set and published, and the runtime handle is stored.
- The rx tick loop calls `poll_nostr_discovery` (feature-gated both
at method definition and call site), which refreshes the local
advert, drains bootstrap events, adopts established traversals,
schedules retries for failed traversals, and — under `policy:
open` — enqueues outbound retries for non-configured peers
visible in the advert cache, bounded by
`open_discovery_max_pending` and the remaining outbound slots.
- Outbound peer dialing is refactored to `try_peer_addresses`, which
first exhausts the static address list in priority order and only
then appends advert-derived fallback addresses; both lists run
through the same `attempt_peer_address_list` code path. The
`udp:nat` sentinel address triggers `NostrDiscovery::request_connect`
for the peer instead of a direct dial and returns `Ok(())`.
- `build_overlay_advert` walks operational transports, consults
per-instance `UdpConfig` / `TcpConfig` / `TorConfig` (matching by
optional transport instance name), and emits an `OverlayAdvert`
including `signalRelays` and `stunServers` when any UDP endpoint
is advertised as NAT.
- `adopt_established_traversal` is the bootstrap handoff API:
allocates a new `TransportId`, constructs a `UdpTransport` with
the user-supplied (or default) `UdpConfig`, calls the new
`adopt_socket_async` to reuse the punched socket verbatim,
registers the transport in the normal transport map, records it
in `bootstrap_transports`, and calls `initiate_connection` so the
normal handshake path runs. On failure, the transport is stopped
and removed cleanly and the set membership is rolled back.
- On clean shutdown, `NostrDiscovery::shutdown` is awaited so
background tasks stop before transports are torn down. (The
advert is not explicitly retracted; NIP-40 expiration plus the
next refresh from any live publisher supersedes it.)
New `Node` fields:
- `nostr_discovery: Option<Arc<NostrDiscovery>>` (feature-gated).
- `bootstrap_transports: HashSet<TransportId>` — per-peer UDP
transports adopted from NAT traversal, cleaned up via
`cleanup_bootstrap_transport_if_unused` whenever the link,
connection, peer, or pending-connect referencing them is removed.
Retry and error surface:
- `RetryState.expires_at_ms: Option<u64>` — optional absolute expiry
for a retry entry. `pump_retries` drops expired entries with an
info log. Used for open-discovery retries, which expire at two
times the advert TTL.
- New `NodeError::BootstrapHandoff(String)` returned from
`adopt_established_traversal` when the underlying transport
adoption fails or local address discovery fails.
- New `ConfigError::Validation(String)`.
- A small refactor extracts `Node::now_ms()` and reuses it across
lifecycle, rx-loop tick, and timeout bookkeeping.
== UDP transport
`src/transport/udp/`:
- `UdpRawSocket::adopt(std::net::UdpSocket, recv_buf, send_buf)`:
adopts an externally bound socket, makes it non-blocking, applies
the configured buffer sizes (warning if the kernel clamps), and
reports the resulting local address. Preserves the NAT mapping —
no rebind.
- `UdpTransport::adopt_socket_async(std::net::UdpSocket)`: the
`start_async` analogue for an already-bound socket, wiring the
async socket and recv task exactly as the fresh-bind path would.
- `Drop` impl for `UdpTransport`: if a transport is dropped while
still holding a recv task or socket (for example on error
teardown), aborts the task, clears the socket, and emits a debug
log so the cleanup is visible in tracing rather than silent.
== Logging and observability
Default `EnvFilter` demotes third-party relay-pool DEBUG output to
TRACE-only: `nostr_relay_pool`, `nostr_sdk`, and `nostr` are pinned
at INFO when our level is anything below TRACE, and at TRACE when
our level is TRACE — so the raw frames are still reachable when
explicitly asked for. RUST_LOG continues to override completely.
Concise one-line DEBUG events are emitted at the meaningful points
in the discovery / hole-punch sequence:
- `advert: published` (event id, relay count, endpoints, ttl)
- `advert: peer cached` (notify-loop ingress for non-self)
- `advert: resolved` (cache hit / relay fetch outcome)
- `traversal: initiator starting`
- `traversal: initiator STUN observed` (reflexive, local count)
- `traversal: offer sent` (session id, relay count, event id)
- `traversal: answer received` (accepted, reflexive, local)
- `traversal: initiator punch succeeded` (remote addr)
- `traversal: offer received` (responder side)
- `traversal: responder STUN observed`
- `traversal: answer sent`
- `traversal: responder punch succeeded`
Npubs are shortened to `npub1<4>..<4>` and event/session ids to
their first 8 hex characters.
Other operator-facing logs:
- `UdpTransport` adoption and drop paths log at info / debug.
- `adopt_established_traversal` logs at debug on entry and info on
successful return, tagged with peer npub, session id, transport
id, and both socket endpoints, so the bootstrap handoff is
traceable end-to-end alongside the `UdpTransport::drop` log.
- `cleanup_bootstrap_transport_if_unused` logs at debug when the
reference-count check drops an adopted transport.
- `connect_peer` tags its entry `debug!` with `peer_npub` so
downstream STUN, punch, and handshake logs for the same peer
correlate for operators.
- Advert-cache and seen-sessions overflow evictions log at debug so
mis-sized caps are visible under ambient relay volume.
- Gift-wrap unwrap failures on `SIGNAL_KIND` events log at trace
(hot path: fires for every unrelated signal event on the same
relay).
- Traversal-offer handler failures log at debug. Expected conditions
such as punch timeout on symmetric NAT are covered there; real
problems are reported upstream via `BootstrapEvent::Failed`.
- Inbound-offer rate-limit messages name the governing config field
(`max_concurrent_incoming_offers`) and state that the offer was
rate-limited rather than failing.
== Tests
- 18 new unit tests in `src/discovery/nostr/tests.rs` covering advert
encoding, signal envelope round-trip, STUN parsing, punch-packet
codec, and replay-window enforcement. Run under the
`nostr-discovery` feature.
- Config-validation tests in `src/config/mod.rs` covering the three
cross-field invariants and YAML parsing of the full
`node.discovery.nostr` block plus `peers[].via_nostr`, empty
`addresses` with `via_nostr: true`, and a `udp: nat` address.
- `src/node/tests/bootstrap.rs` integration tests that drive a
synthetic traversal (bound UDP socket pair + synthetic peer
identity) through `adopt_established_traversal` and assert the
Noise handshake completes over the adopted socket.
- Punch-planner tests assert reflexive-before-LAN ordering and that
same-LAN scenarios still include the LAN target in the plan.
- `testing/nat/` Docker NAT lab harness:
- Local `strfry` relay, local STUN responder, and one or two
router containers performing `iptables` NAT.
- Node LAN interfaces are provisioned with explicit `veth` pairs
injected into the node and router namespaces so every packet
traverses the router namespace (plain Docker bridges are not
used for the LAN).
- `cone` scenario: both peers behind full-cone-emulation NAT
(SNAT with source-port preservation, inbound DNAT back to the
single LAN host regardless of remote source); asserts UDP
traversal succeeds and link remote addresses are on the router
WAN subnet.
- `symmetric` scenario: `MASQUERADE --random-fully`; asserts UDP
traversal fails and TCP fallback converges over router-
published WAN addresses.
- `lan` scenario: both peers share a LAN subnet; asserts LAN
addresses are preferred over reflexive ones.
- Cleanup tears down all profile-gated services
(`--profile cone --profile symmetric --profile lan`) so no
orphan containers survive a run.
- `testing/scripts/build.sh` builds the Docker test image with
`--features "tui nostr-discovery"` by default so NAT-harness
binaries include bootstrap support.
== CI
- Linux release build and nextest unit-test job both use
`--features "gateway nostr-discovery"` so the feature-gated code
and its unit tests compile and run in CI.
- Three new integration matrix entries (`nat-cone`, `nat-symmetric`,
`nat-lan`) invoke `testing/nat/scripts/nat-test.sh`, collect
`docker compose logs` on failure, and always stop containers.
== Packaging and operations
- `packaging/common/fips.yaml` ships a fully commented
`node.discovery.nostr.*` block, plus documented
`advertise_on_nostr` / `public` examples under the UDP transport,
an `advertise_on_nostr` example under TCP, and a `via_nostr: true`
example under the static peer section with both a direct
`host:port` UDP address and a `udp: nat` fallback.
- `.github/workflows/package-openwrt.yml`: NIP-94 release event
publishes target the new default relay set.
== Documentation
- `README.md`: overlay discovery + NAT traversal moved from
"Near-term priorities" into "What works today".
- `docs/design/fips-intro.md`: rewrites the paragraphs that
previously described Nostr discovery and NAT traversal as future
work; describes the shipped mechanism and the feature gate.
- `docs/design/fips-transport-layer.md`: drops the "(future
direction)" qualifier from the Nostr Relay Discovery section,
expands with the `udp:nat` advertisement and bootstrap handoff
description, and updates the Current State callout.
- `docs/design/fips-mesh-layer.md`: notes that mid-session NAT
rebinding (roaming) and initial NAT traversal (Nostr path) are
distinct mechanisms.
- `docs/design/fips-configuration.md`: documents the full
`node.discovery.nostr.*` surface, including the three resource
caps and `share_local_candidates`.
- `docs/design/fips-nostr-discovery.md`: design and configuration
reference for the shipped mechanism, including the empty-
`addresses`-with-`via_nostr` shorthand.
- `docs/proposals/nostr-udp-hole-punch-protocol.md`: adds an
Implemented status callout, clarifies that the punch socket is
per-peer and per-attempt rather than shared with the application
listener, aligns field names with the shipped JSON
(`sessionId`, `issuedAt` / `expiresAt`, `reflexiveAddress`,
`localAddresses`, `stunServer`), sets the `d`-tag to
`fips-overlay-v1`, names the kind as 37195, and notes that
advertised STUN entries are informational.
- `docs/proposals/README.md`: adds a Status column and marks the
hole-punching proposal Implemented.
- `CHANGELOG.md`: Unreleased > Added entry covering the discovery
path, STUN/punch path, configuration surface, and Docker NAT lab.
Co-authored-by: Johnathan Corgan <johnathan@corganlabs.com>
|
||
|
Johnathan Corgan
|
1e3b2c319e |
testing: rekey settle past drain window + stale tooling references
- testing/static/scripts/rekey-test.sh: bump REKEY_SETTLE from 5s to 12s so post-rekey ping_all samples are taken after the 10s old- session drain window has closed (DRAIN_WINDOW_SECS in handlers/rekey.rs). The 5s sample window straddled the drain, occasionally catching old-session decrypts mid-cutover and producing spurious ping failures. - testing/lib/log_analysis.py: discovery-succeeded match string is "proof verified, route cached" (the wording in handlers/discovery.rs); the regex looked for the older "caching route" wording, so the chaos analysis summary always reported `Succeeded: 0` regardless of how many successes the raw node logs actually showed. - testing/scripts/build.sh: drop the second cargo invocation that passed `--features gateway --bin fips-gateway`. PR #79 removed the `gateway` cargo feature in favor of platform cfg gates, so this invocation now fails with `the package 'fips' does not contain this feature: gateway`. The first cargo build already produces fips-gateway as a workspace binary on every supported target. |
||
|
Johnathan CorganandGitHub
|
cbc78091ab |
Rationalize cargo feature and platform-gate surface (#79)
Drop the `tui`, `ble`, and `gateway` cargo features and replace them with platform cfg gates. Plain `cargo build` now produces every subsystem appropriate for the target platform with no feature flags required. Motivation: - `default = ["tui", "ble"]` broke `cargo build` on macOS and Windows because `ble` pulled in `bluer` (BlueZ, Linux-only). Every non-Linux packager needed `--no-default-features`. - The feature flags on `ble` and `gateway` were redundant with their platform-gated deps (`bluer`, `rustables`). The parallel gating was inconsistent and error-prone. - `tui` feature protected against a ratatui binary-size concern that no longer applies in 2026. Cargo.toml: - Remove `tui`, `ble`, `gateway` features; `default = []`. - Promote `ratatui` to a non-optional top-level dependency. - Move `rustables` from top-level optional into the Linux target block, non-optional. - Split `bluer` into its own target block with `cfg(all(target_os = "linux", not(target_env = "musl")))` — BlueZ isn't available on musl router targets and `libdbus-sys` doesn't cross-compile to musl without pkg-config sysroot setup. - Drop `required-features` from the `fipstop` and `fips-gateway` `[[bin]]` entries. build.rs: - Emit a `bluer_available` custom cfg when `target_os == "linux"` and `target_env != "musl"`, for use in place of the verbose full predicate in source cfg gates. Source: - Replace every `#[cfg(feature = "gateway")]` with `#[cfg(target_os = "linux")]`. Gateway code works on both glibc and musl Linux (rustables is fine on musl). - Replace every `#[cfg(feature = "ble")]` with `#[cfg(bluer_available)]`. BLE-specific code (BluerIo module, bluer type conversions, BLE transport instance creation, resolve_ble_addr) is excluded on musl and non-Linux. Generic `BleAddr`, `BleIo` trait, `MockBleIo`, and `BleTransport<I>` still compile on all targets. - `src/bin/fips-gateway.rs`: always compiled, but `main()` is gated to Linux. Non-Linux stub exits 1 with a diagnostic. Existing non-Linux packaging scripts don't ship it, so the stub binary sits unused. Packaging and CI: - Drop `--features` and `--no-default-features` flags from every packaging script and workflow. Defaults now match each platform's capabilities. - AUR `fips-git` automatically aligns with stable `PKGBUILD` (both build with defaults). Verified: `cargo build --release` with no flags produces all four binaries on glibc Linux; all unit and integration tests pass across Linux/macOS/Windows/OpenWrt (musl) in CI. |
||
 Alex XieandJohnathan Corgan
|
745b523ac6 |
Add peer ACL enforcement with reloadable allow/deny files (#50)
Implement TCP Wrappers-style peer access control using /etc/fips/peers.allow and /etc/fips/peers.deny files. Evaluation order: allow overrides deny, default permit when no files exist. Three enforcement points: outbound connect (before dialing), inbound handshake (msg1 receipt, after restart/rekey classification), and outbound handshake completion (msg2, before peer promotion). Files support npub, hex pubkey, host alias, and ALL wildcard entries with automatic mtime-based reload. Adds fipsctl acl show query, 954-line acl module with unit tests, and a 6-node Docker integration harness (testing/acl-allowlist/) exercising insider, outsider, and allowed-remote scenarios. CI matrix entry included. Closes #50 Co-authored-by: Johnathan Corgan <johnathan@corganlabs.com> |
||
 SatsAndSportsandGitHub
|
5087ef9a95 |
Fix testing docker build by staging fips-gateway (#69)
The unified test image always expects fips-gateway in testing/docker, but testing/scripts/build.sh only copied fips, fipsctl, and fipstop. Build and stage fips-gateway explicitly so local Docker test builds match CI. |
||
|
Johnathan Corgan
|
213c0e87c3 |
Implement inbound mesh port forwarding
Mesh peers can now reach a configured host:port on the gateway's LAN
via static port-forward rules on fips-gateway. Mirror of the outbound
LAN gateway (IDEA-0079 / TASK-2026-0056).
Config: new gateway.port_forwards list of { listen_port, proto,
target } entries. Targets are SocketAddrV6 — IPv4 is rejected at
parse time. Validation rejects zero listen ports and duplicate
(listen_port, proto) pairs.
NAT: NatManager gains a port_forwards field and set_port_forwards()
setter, rebuilt in the same atomic rustables batch as the address
mappings. Each forward emits a prerouting DNAT rule keyed on
(iifname fips0, nfproto ipv6, l4proto, tcp/udp dport) that rewrites
destination address and port via Nat::with_ip_register +
with_port_register. When any forwards are configured, a single
LAN-side masquerade is installed on (iifname fips0, oifname
lan_interface, nfproto ipv6) so the LAN host sees the gateway as
source and replies flow back through conntrack. This rule is
distinct from the existing oifname fips0 masquerade that serves the
outbound pool.
Binary: fips-gateway validates port_forwards at startup and calls
set_port_forwards after NatManager construction; startup failure
cleans up the nftables table before exiting.
Test: extend testing/static/scripts/gateway-test.sh with Phase 7
that runs a marker HTTP server on the LAN-side client (fd02::20:8080)
and, from the mesh peer, curls the gateway's fips0 address on port
18080 to exercise the full DNAT + LAN masquerade path. The
LAN-side HTTP server is started with 'docker exec -d' plus a
bind-ready poll on ss; 'docker exec bash -c "cmd &"' does not
keep the child alive past the exec session even with nohup.
Test-infra: ci-local.sh now builds/clippies/tests with
--features gateway, matching GitHub CI. Without this the release
fips-gateway binary silently stays stale across runs, since
cargo build --release alone does not compile the gateway bin.
Verified locally: cargo test --features gateway --lib (991 pass),
clippy + fmt clean, full testing/ci-local.sh green (21/21 suites
in 8m36s, including the new gateway Phase 7).
|
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|
Johnathan CorganandGitHub
|
fe205e74de |
Multi-backend DNS configuration for .fips domain (#58)
Replace the resolvectl-only fips-dns.service with a detection script that configures whichever DNS resolver is available: 1. systemd dns-delegate (systemd >= 258, declarative drop-in) 2. systemd-resolved via resolvectl (most systemd distros) 3. dnsmasq (standalone) 4. NetworkManager with dnsmasq plugin 5. Warning with manual instructions if none found Service reloads are non-fatal — config is written and the backend is recorded even if the reload fails, preventing state file cleanup issues under set -e. Teardown reads the recorded backend from /run/fips/dns-backend and reverses the configuration, or cleans up all possible backends if the state file is missing. Includes a Docker-based test harness (testing/dns-resolver/test.sh) covering all five backends across Debian 12, Debian 13, Fedora, and bare systems. Fixes #52. |
||
|
Johnathan Corgan
|
68dafbc72a | Add testing/.gitignore for staged binaries and generated artifacts | ||
|
Johnathan Corgan
|
0d4ffc61f0 |
Fix gateway test HTTP server port mismatch
The entrypoint HTTP server was binding port 80 but gateway-test.sh curls port 8000. Maint already had 8000; the wrong port was introduced during a merge to master. |
||
|
Johnathan Corgan
|
6196307f0e |
Merge branch 'maint'
# Conflicts: # src/bin/fips.rs # src/bin/fipstop/app.rs # src/config/mod.rs # src/config/node.rs # src/config/transport.rs # src/mmp/receiver.rs # src/mmp/sender.rs # src/node/handlers/handshake.rs # src/node/handlers/rekey.rs # src/node/lifecycle.rs # src/node/mod.rs # src/transport/ethernet/socket.rs # src/transport/mod.rs # src/upper/tun.rs |
||
|
Johnathan Corgan
|
68bdcb2c75 | Add cargo fmt --check to CI and local CI | ||
 Origami74
|
e693f4fb7e |
Add macOS support, fix bloom filter routing and MMP intervals
macOS platform: - Platform-native TUN interface management with shutdown pipe - Raw Ethernet transport with macOS socket backend (socket_macos.rs) - EthernetTransport and TransportHandle::Ethernet ungated from Linux-only - macOS .pkg packaging (build-pkg.sh, launchd plist, uninstall script) - CI: macOS build and unit test jobs; x86_64 cross-compiled from macos-latest via rustup target add x86_64-apple-darwin Gateway feature flag: - New opt-in `gateway` Cargo feature activates optional `rustables` dep - `pub mod gateway` and `Config.gateway` gated behind the feature so macOS builds never pull in Linux-only nftables bindings - `fips-gateway` bin has `required-features = ["gateway"]` - All Linux/OpenWrt/AUR packaging passes `--features gateway` CI / packaging: - package-linux, package-macos, package-openwrt now trigger on push to master/maint/next and on pull requests; release uploads remain tag-gated - Bloom filter routing fix: fall through to tree routing when no candidate is strictly closer - MMP intervals: raise MIN to 1s / MAX to 5s with 5-sample cold-start phase |
||
|
Johnathan Corgan
|
60e5fefb1f |
Implement outbound LAN gateway
Add fips-gateway binary: a separate daemon that allows unmodified LAN hosts to reach FIPS mesh destinations via DNS-allocated virtual IPs and kernel nftables NAT. Gateway DNS resolver: forwarding proxy on [::]:53 that intercepts .fips queries, forwards to daemon resolver (localhost:5354), allocates virtual IPs from pool, returns AAAA records. Always sends AAAA upstream regardless of client query type, returns proper NODATA for non-AAAA. Virtual IP pool: fd01::/112 pool with state machine lifecycle (Allocated → Active → Draining → Free), TTL-based reclamation, conntrack integration for session tracking. NAT manager: nftables DNAT/SNAT rules via rustables netlink API, per-mapping rule lifecycle, fips0 masquerade for LAN client source address rewriting. Network setup: local pool route, proxy NDP for virtual IPs on LAN interface, IPv6 forwarding validation. Control socket at /run/fips/gateway.sock with show_gateway and show_mappings queries. fipstop Gateway tab with pool summary gauge and mappings table. Gateway config section in fips.yaml with pool CIDR, LAN interface, DNS upstream, TTL, and grace period settings. Design doc at docs/design/fips-gateway.md. Integration test (testing/static/scripts/gateway-test.sh): three containers verifying DNS resolution, end-to-end HTTP, NAT state, TTL expiration, SERVFAIL fallback, and clean shutdown. |
||
|
Johnathan Corgan
|
864a8bcc9e | Merge branch 'maint' | ||
|
Johnathan Corgan
|
15628e5b41 |
Improve ping test convergence by checking all nodes
Wait for all nodes to reach their expected peer counts instead of only checking a single node. This prevents false failures on slower CI runners where remote nodes (especially node E in mesh/chain topologies) take longer to establish all links. |
||
|
Johnathan Corgan
|
adfbeb2348 | Merge branch 'maint' | ||
|
Johnathan Corgan
|
6633d22132 |
Improve ping test convergence by checking all nodes
Wait for all nodes to reach their expected peer counts instead of only checking a single node. This prevents false failures on slower CI runners where remote nodes (especially node E in mesh/chain topologies) take longer to establish all links. |
||
 joandJohnathan Corgan
|
8e38d889fa | testing: stabilize rekey integration timing | ||
|
Johnathan Corgan
|
89352d3218 |
Add BLE L2CAP transport with scan-based auto-connect
BLE transport implementation using L2CAP Connection-Oriented Channels (SeqPacket mode) via the bluer crate, behind cfg(feature = "ble"). Core transport: - BleTransport<I> generic over BleIo trait (BluerIo prod, MockBleIo test) - Connection pool with priority eviction (static > discovered, max 7) - Connect-on-send via connect_inline() matching TCP behavior - Per-connection receive loops with pool cleanup on disconnect Discovery and probing: - Combined scan_probe_loop using select! over scanner events and a BinaryHeap delay queue with per-entry random jitter (0-5s) to prevent herd effects when multiple nodes see the same beacon simultaneously - Pre-handshake pubkey exchange ([0x00][pubkey:32]) for IK identity - Cross-probe tie-breaker: smaller NodeAddr's outbound wins (same convention as FMP/FSP rekey dual-initiation) - Probed peers reported to DiscoveryBuffer; pool fills through normal node-layer auto-connect -> send_async -> connect_inline path Beacon management: - Periodic advertising: 1s burst every 30s (configurable via beacon_interval_secs / beacon_duration_secs) - FIPS service UUID for scan filtering Configuration (all fields optional with defaults): - adapter, psm, mtu, max_connections, connect_timeout_ms - advertise, scan, auto_connect, accept_connections - beacon_interval_secs (30), beacon_duration_secs (1) Hardware validated with two BLE nodes: - 2048-byte MTU, ~60-160ms RTT, zero-config auto-connect - BLE spike tool at testing/ble/ for standalone adapter validation 42 unit tests + 4 node-level integration tests, all CI-compatible via MockBleIo (no hardware required). tokio test-util added for time-dependent scan/probe tests. |
||
|
Johnathan Corgan
|
fc8c0dce15 |
Increase rekey test convergence wait from 5s to 15s
Phase 1 pre-rekey baseline was failing intermittently on CI runners because 5s wasn't enough for multi-hop discovery (B→D requires B→C→D). The mesh always converged by Phase 3, confirming this was purely a timing issue. |
||
|
Johnathan Corgan
|
71e2955da0 |
Fix rekey integration test after logging demotion (b8fbecc)
The rekey test greps container logs for initiator cutover messages that were demoted to debug level. Override RUST_LOG in the rekey profile to enable debug for fips::node::handlers::rekey so the test assertions can find them. |
||
|
Johnathan Corgan
|
6aff490251 |
Improve discovery protocol: bloom-guided tree routing with fallback
Replace discovery flooding with bloom-filter-guided tree routing: lookups sent only to tree peers (parent + children) whose bloom filter contains the target. If no tree peer matches, fall back to non-tree peers with bloom matches before dropping the request. This produces single-path forwarding through the spanning tree (90% traffic reduction) while recovering from dead ends caused by stale bloom filters, tree restructuring, or transit node failures. Remove visited bloom filter from LookupRequest wire format (-257 bytes per request). Tree routing is inherently loop-free; request_id dedup handles edge cases during tree restructuring. Add response- forwarded flag to prevent response routing loops from convergent request paths. Add originator-side exponential backoff (30s base, 300s cap) after lookup timeouts and bloom misses. Backoff resets on topology changes (parent switch, new peer, first RTT, reconnection). Add transit-side per-target rate limiting (2s minimum interval) for forwarded lookups as defense-in-depth. Add discovery retry within the timeout window (default: send at T=0, retry at T=5s, fail at T=10s) to compensate for single-path fragility. Lookups with zero eligible tree peers fail immediately. Improve discovery logging: promote key events to info (initiation, success, timeout with failure count). Add debug logging for dedup, pending packet retry, backoff suppression, forward rate limiting, and backoff reset. New config: discovery.backoff_base_secs, backoff_max_secs, forward_min_interval_secs, retry_interval_secs, max_attempts. New stats: req_backoff_suppressed, req_forward_rate_limited, req_bloom_miss, req_no_tree_peer, req_fallback_forwarded. Removed: req_already_visited, visited bloom filter. |
||
|
Johnathan Corgan
|
fed6cc6987 |
Fix chaos sim DNS pipeline, ephemeral npub tracking, and analysis
Three infrastructure bugs fixed: - DNS resolution never populated the identity cache because Docker overwrites /etc/resolv.conf at container start. Fix: bind-mount resolv.conf in the chaos compose template, matching the static and sidecar test configs. - Traffic generator used config-time npubs for iperf3 targets, but ephemeral nodes generate fresh keypairs at startup. Fix: share the peer churn manager's runtime npub cache with the traffic manager. - Log analysis had no discovery counters and used wrong patterns. Fix: add discovery section with correct log message matching. Also adds timestamped output directories (YYYYMMDD-HHMMSS-scenario), coord_ttl_secs override in maelstrom.yaml, FIPS_SIM_OUTPUT env var support, and maelstrom-sparse scenario for sparse topology testing. |