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7493153a898ffe0aecc4c5268fa2e3c4d39c0da8
40
Commits
| Author | SHA1 | Message | Date | |
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a47ddbd5a5 |
Merge maint into master after the v0.4.1 release
Carries the v0.4.1 content up the one-way branch flow. The release itself belongs to maint, so the parts of this merge that identify a version are resolved in master's favor and the parts that describe the project's state are taken from maint. Kept master's: Cargo.toml and Cargo.lock at 0.5.0-dev, the README status badge, and the "FIPS is at v0.5.0-dev on the master branch" line. A patch release consumes no minor version and master's development line is unaffected by it. Took from maint: the bloom antipoison FPR default change and the duplicate-definition fix it rests on, the two docs that describe them, the new v0.4.1 release notes, the correction to the v0.4.0 release date, and the [0.4.1] changelog section, which slots below master's own [Unreleased] and above [0.4.0]. The root RELEASE-NOTES.md mirror moves to v0.4.1 because it tracks the latest shipped release, which also clears the stale provisional date it had been carrying. One line needed splitting rather than choosing: the README said "v0.4.0 has shipped" inside the paragraph that identifies master as 0.5.0-dev. The version identity stays master's and the shipped-release pointer moves to v0.4.1. Quartet green on the result: 1645 tests passed, clippy clean with -D warnings. |
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146d19a8d8 |
Add v0.4.1 changelog entry and release notes
Back-fill the changelog for the six user-facing changes on this line since v0.4.0: the antipoison FPR cap default, the bloom probe and secp256k1 context performance work, the coordinate-cache and path-MTU fixes, and the removed parent_switched counter. The Unreleased section was empty, so all six entries are new. Write the v0.4.1 release notes and mirror them to the root copy. The notes lead with the FPR cap change and state plainly that this is the second raise of that default in two releases, that it buys headroom rather than fixing the underlying fixed-filter constraint, and that the structural remedy is the v2 filter work. They also flag the rolling upgrade window, where an upgraded and a not-yet-upgraded node can disagree about mesh size, and point consumers of parent_switched at parent_switches. Bump the README status badge and the roadmap prose together so the two agree. |
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cf62cff5f4 |
feat: Android-ready core: target_os gating and app-owned TUN seam
Make the FIPS core build and run as an embedded Android library. The host app owns the TUN (e.g. an Android VpnService) and FIPS performs no system-TUN or CAP_NET_ADMIN operations. Squashed from the following changes: - gate desktop transports/TUN by target_os, not features: a plain `cargo build` now compiles for every target with no flags. Ethernet (raw AF_PACKET / BPF) is gated to linux/macos, so Android (target_os = "android", not "linux") self-excludes it as Windows already did; real system-TUN ops are gated per linux/macos and Android gets a no-op stub; the ipi6_ifindex cast handles it being i32 on Android vs u32 on macOS. No Cargo features are introduced; desktop builds are unchanged. - app-owned TUN seam: Node::enable_app_owned_tun() lets an embedder that owns the TUN fd exchange IPv6 packet bytes with FIPS over channels instead of FIPS creating a system TUN device. It returns (app_outbound_tx, app_inbound_rx): the embedder pushes packets read from its fd into the outbound sender (app -> mesh) and pulls packets destined for its fd from the inbound receiver (mesh -> app). start() gates system-TUN creation on tun_tx being unset, so with the channels pre-installed it skips device creation and does no system-TUN ops; both directions reuse the existing inbound-shim and run_rx_loop wiring. Packets entering via app_outbound_tx bypass handle_tun_packet, so the embedder must push only fd00::/8-destined packets and clamp TCP MSS on outbound SYNs; the rustdoc and the IPv6-adapter design doc spell this out. - keep the android target warning-clean so the cross-compile check passes clippy -D warnings. - add an Android cross-compile CI check: cross-compile the library for aarch64-linux-android via cargo-ndk and run clippy -D warnings. Android ships as an embedded library (the host app owns the TUN), so there is no daemon binary to package; this is a check job, not a packaging one. - docs: list Android as a supported platform. Tests: app_owned_tun_seam_wires_channels covers the channel round-trip and the Active state; start_skips_system_tun_when_app_owned runs start() and asserts no named system device is created. |
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8f30924fc7 |
Open 0.4.1-dev cycle on maint after v0.4.0 release
Fast-forward maint to the v0.4.0 release and open the 0.4.x patch series: bump the version to 0.4.1-dev and update the status badge. |
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3c9a629ad4 |
Open 0.5.0-dev cycle on master after v0.4.0 release
Bump the version to 0.5.0-dev and update the status badge. |
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262d98a8eb |
Finalize v0.4.0 release content: CHANGELOG, release notes, README
Prepare the source tree for the v0.4.0 release cut, leaving the version at 0.4.0-dev (the version bump rides a separate release-candidate commit). - CHANGELOG: backfill the missing entry for the route-class transit counters and fipstop routing-tab reorg, then reorganize the Unreleased block from a flat per-commit list into topic-grouped subsections mirroring the 0.3.0 entry (coalescing interim fixes into net-effect descriptions without dropping technical detail), and stamp it as [0.4.0] - 2026-06-21 with a fresh empty Unreleased block. The date is provisional and reconfirmed at the final tag. - Release notes: refresh both RELEASE-NOTES.md and the versioned archive (kept byte-identical) to cover the OpenWrt .apk packaging, the Nix flake, the macOS self-traffic checksum fix (#117), and the route-class transit counters. - README: bump the status badge to v0.4.0 so it matches the prose. Claude-Session: https://claude.ai/code/session_01A2pYfSypNmmG4HyHwZuLex |
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3733349d33 |
packaging(nix): add a Nix flake for reproducible from-source builds
Add a flake that builds all four binaries (fips, fipsctl, fips-gateway,
fipstop) on Linux and macOS, pinning the exact toolchain from
rust-toolchain.toml (1.94.1 + rustfmt/clippy) via fenix so Nix builds
match CI and the AUR/Debian packaging.
Wire up the build-time native deps the source tree needs: pkg-config and
bindgenHook (libclang) for the rustables/libdbus-sys bindgen step, and
dbus for bluer's BLE support. autoPatchelfHook rewrites the binary RPATHs
so the daemon resolves libdbus-1.so.3 and libgcc_s.so.1 from the Nix store
at runtime — without it `fips` fails to load on NixOS, which has no global
/usr/lib.
Outputs: packages.{default,fips}, apps for each binary, checks.fips, and a
devShell with the pinned toolchain plus cargo-edit. Tests are skipped in
the package build since they exercise TUN devices, raw sockets, and mDNS
that aren't available in the sandbox, mirroring the AUR/Debian packaging.
Verified end-to-end in a pure Nix store (nixos/nix container): nix build,
nix flake check, and running all four binaries succeed against the
committed flake.lock.
Documented across the install and developer docs: a Nix / NixOS section in
packaging/README.md, the from-source guide in docs/getting-started.md
(noting the flake produces binaries only, with NixOS system integration
through the system configuration rather than the installer), the CHANGELOG,
README, CONTRIBUTING, and the v0.4.0 release notes.
Co-authored-by: Johnathan Corgan <johnathan@corganlabs.com>
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d3cf1d6f25 |
Land v0.4.0 pre-release source content: docs, changelog, packaging
Bring the source tree to its finished v0.4.0 content state ahead of the release candidate. Documentation, changelog, release notes, and packaging metadata only; no code or version-string changes. CHANGELOG.md: backfill the operator-visible changes that landed since v0.3.0 (the show_metrics scraper query and fipsctl stats metrics, the discovery dedup-cache-full counter, the off-rx_loop control read surface and its new daemon-resolved fields, the fipstop TUI overhaul, the TCP inbound cap now honoring max_connections, host-map hot-reload, log-noise demotions, and the net bug fixes), topic-grouped rather than replayed per commit; intra-cycle fixes folded into their feature entries; the duplicate Unreleased Fixed section merged into one. Release notes: author docs/releases/release-notes-v0.4.0.md to the operator-upgrade bar and mirror it byte-for-byte into the root RELEASE-NOTES.md. Attribute each feature to its author in Contributors (Nym transport and the mixnet demo to @oleksky, opt-in mDNS LAN discovery to @mmalmi). README.md: add the Nym transport to the support matrix (Linux, macOS, Windows; OpenWrt pending verification), the multi-transport bullet, and the "What works today" list; fold mDNS LAN discovery into the existing Nostr-discovery bullets; refresh the status narrative to v0.4.0 over a global, public test mesh. packaging/common/fips.yaml: add commented Nym transport and mDNS LAN discovery example stanzas with verified field names and defaults. Cargo.toml: add homepage, keywords, and categories crate metadata. docs/reference: update the cli-fips version example to the released form; document the new control-socket output fields and the typed RejectReason families in control-socket.md; sync cli-fipstop.md with the overhauled TUI keybindings. |
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4e43cb81e9 |
Add Nym mixnet transport and single-container demo
Add an outbound-only Nym mixnet transport that tunnels FMP peer links through a local nym-socks5-client SOCKS5 proxy into the Nym mixnet. It structurally mirrors the Tor SOCKS5 transport (connection pool, connect-on-send background promotion, FMP-v0 framing reused from TCP) with the onion, inbound-listener, and control-port machinery removed. Wires the transport through the full TransportHandle dispatch, NymConfig (standard transport-instance pattern), and node instantiation, and surfaces its counters in fipstop. Includes a mock SOCKS5 harness and unit coverage for the address-parsing paths. Also adds an isolated single-container example (examples/sidecar-nostr-mixnet-relay/) demonstrating FIPS peering across the mixnet end to end. No new crate dependencies: tokio_socks, socket2, and futures are already pulled in by the Tor transport. |
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e5372cbe0f | Merge maint into master (libclang build-prereq doc + transport mutex-poison recovery) | ||
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86c043cc94 |
docs: document libclang-dev as a mandatory Linux build prerequisite
Linux source builds pull in rustables, whose build script runs bindgen to generate nftables bindings for the LAN gateway. bindgen needs libclang.so on the build host, so a clean source build fails with 'Unable to find libclang' unless libclang-dev (or llvm) is installed. The prerequisite text in README.md and CONTRIBUTING.md previously listed only the optional BLE dependencies, and packaging/README.md had no source-build prerequisite list at all. Document libclang-dev as a mandatory Linux build dependency, distinct from the optional BLE deps, and note that it is build-time only so pre-built .deb installs are unaffected. |
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32697a16f0 |
chore: open v0.4.0-dev cycle on master
- Cargo: 0.3.0 → 0.4.0-dev - CHANGELOG: fresh [Unreleased] block above [0.3.0] - README: badge v0.3.0 → v0.4.0--dev |
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627fd3627b |
chore: open v0.3.1-dev cycle on maint
Reset maint to v0.3.0 to retire the v0.2.x maintenance window and open a new tracking branch for v0.3.1-dev bug-fix work. - Cargo: 0.3.0 → 0.3.1-dev - CHANGELOG: fresh [Unreleased] block above [0.3.0] - README: badge v0.3.0 → v0.3.1--dev |
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1617f6ec1c |
Release v0.3.0
Bump Cargo.toml version 0.3.0-dev -> 0.3.0 and resync Cargo.lock, move the CHANGELOG [Unreleased] block under [0.3.0] - 2026-05-11, update the README status badge and prose to v0.3.0, and add the release notes at docs/releases/release-notes-v0.3.0.md with a mirrored copy at the repo root as RELEASE-NOTES.md. |
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42b88c9bb8 |
docs: refresh README, CONTRIBUTING, and examples for v0.3.0
Four short prose corrections folded together to align operator-facing
docs with current v0.3.0 reality:
- README Rust prerequisite reconciled with the toolchain pin (1.94.1,
was 1.85+).
- CONTRIBUTING.md bumps the Rust prerequisite and adds the squash-merge
policy note.
- examples/sidecar-nostr-relay/Dockerfile drops stale --features tui
and the paired --no-default-features; the tui/ble/gateway cargo
features were replaced by platform cfg gates in
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18019bb1b5 |
docs: rewrite top-level README for v0.3.0-dev
- Status badge v0.2.0 → v0.3.0-dev. - Lede rewritten around the two equally-supported deployment modes (overlay on existing IP networks; ground-up over raw Ethernet, WiFi, Bluetooth) matching docs/README.md and docs/getting-started.md. - Features list refreshed: Nostr-mediated discovery and UDP NAT traversal called out, LAN gateway described as both halves (outbound + inbound port forwarding), peer ACL and control-socket-per-binary noted. - Quick start trimmed to the Debian inline path + pointer at docs/getting-started.md for the multi-platform walkthrough; transport-by-platform matrix retained. - Documentation section reorganised around the four-section docs/ tree (tutorials, how-to, reference, design) with one entry-point pointer per section. - Stale doc links fixed (docs/design/fips-intro.md → docs/design/fips-concepts.md; docs/design/fips-configuration.md no longer linked). - Status & roadmap rewritten for the v0.3.0-dev release-line scope (no new wire-format changes; FMP swap deferred to the next-branch post-v0.3.0 line). 422 → 235 lines. |
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5abf9a9325 |
docs: four-section /docs/ restructure with new-user content, accuracy pass, and gateway feature-set rewrite
Restructures /docs/ by reader purpose (tutorials, how-to, reference, design), adds the new-user-progression and operator-recipe content the prior layout lacked, runs an accuracy pass against current source across the pre-existing design docs, and rewrites the gateway feature-set documentation end-to-end around its actual operational profile (a niche feature designed for systems already serving DHCP/DNS to a LAN, with two independent halves — outbound LAN→mesh, inbound mesh→LAN — sharing one nftables table, one binary, and one control socket). Top-level README and getting-started rewritten around two equally-weighted deployment modes (overlay on existing IP networks; ground-up over non-IP transports). ## Additions - 11 new tutorials in docs/tutorials/: an 8-step new-user progression from single-daemon test-mesh peering through to a ground-up two-device mesh, an IPv6-adapter side-trip walkthrough, an Advanced Tutorials index, and a hand-held OpenWrt walk-through for fips-gateway deployment that exercises both halves of the feature. - 12 new how-tos in docs/how-to/: firewall activation, Nostr discovery (resolve / advertise / open across five scenarios), Tor onion (directory + control_port modes), UDP buffer tuning, unprivileged-user setup, persistent identity, host aliases, Bluetooth LE peering, MTU diagnostics, manual Linux-host gateway deployment (covers both halves), gateway troubleshooting (organised by half), and a section index. - 9 new reference docs in docs/reference/: configuration, wire formats, control-socket protocol, four CLI references (fips, fipsctl, fipstop, fips-gateway), security posture matrix, and Nostr events catalog. Configuration and wire-formats are renamed-and-extended from prior design/ versions; the other seven are net-new. - 6 new design docs: fips-concepts, fips-architecture, and fips-prior-work split out of the deleted fips-intro.md; consolidated fips-mmp and fips-mtu aggregations; and a new generic port-advertisement-and-nat-traversal doc (Nostr-signaled port advertisement plus UDP NAT-traversal protocol, FIPS as an example implementation, suitable for eventual NIP submission). - Top-level docs/getting-started.md walking through the binary-installer-only Install story. - packaging/common/hosts pre-populated with the eight public test-mesh nodes so shortnames resolve out of the box on every fresh install. ## Changes - 23 wire-format diagrams relocated to reference/diagrams/ alongside the wire-formats move. - 4 design diagrams corrected against source code (fips-protocol-stack, fips-identity-derivation, fips-coordinate-discovery, fips-routing-decision). - 10 pre-existing design docs reconciled with current source. Numeric corrections: stale link-MMP report bounds (now [1s, 5s] with 200 ms cold-start floor); UDP default MTU (now 1280, IPv6 minimum); node_addr formula (SHA-256(pubkey)[..16]); Noise patterns (IK at link, XK at session); peer-ACL semantics (strict allowlist requires ALL in peers.deny); daemon DNS upstream ([::1]:5354); on-the-wire bloom-filter size (1,071 bytes); obsolete Cargo-feature references (PR #79 dropped them) removed. - Transport framing tightened across the docs: TCP is for UDP-filtered networks (not NAT traversal); Tor is a deployment mode (not failover); WebSocket dropped (not a shipped FIPS transport); WiFi promoted to Implemented via Ethernet in infrastructure mode; classic-Bluetooth row removed (BLE is the only Bluetooth-mode transport). - docs/design/fips-gateway.md rewritten end-to-end to lead with the niche-feature framing and the two-halves structure. Title moved from "FIPS Outbound LAN Gateway" to "FIPS Gateway"; architecture section describes the common machinery (the fips-gateway service, the nftables table, the control socket) before splitting into separate "Outbound Half" and "Inbound Half" sections of equal weight; security considerations split per-half; no Future Work section (speculative directions live in the project tracker, not in protocol design docs). Inbound port forwarding is a first-class half rather than a buried "Implemented Extensions" subsection. - Gateway terminology unified across all gateway docs as a separate Linux service running alongside the fips daemon (its own systemd unit / OpenWrt init script). Container- pattern terms (sidecar) are reserved for the Docker/Kubernetes sidecar deployment examples — the testing/sidecar/ tree, examples/k8s-sidecar/, examples/sidecar-nostr-relay/, examples/wireguard-sidecar-macos/, and the related CHANGELOG / top-level README entries — where the term carries its standard container meaning. - Net-new design body content: rekey section in fips-mesh-layer (Noise IK msg1/msg2 over the established link, K-bit cutover, drain window, smaller-NodeAddr-wins tie-breaker on dual-init); Mesh Size Estimation and Antipoison FPR Cap sections in fips-bloom-filters; Mesh-Interface Query Filter subsection in fips-ipv6-adapter; failure-suppression knobs and clock- skew tolerance in fips-nostr-discovery; loop-rejection and mid-chain ancestor swap added to spanning-tree propagation / stability rules; Priority Chain in fips-mesh-operation renumbered to match the routing-decision diagram. - Top-level README: dropped the stale nostr-discovery cargo-feature parenthetical. docs/README.md and the four section READMEs (tutorials, how-to, reference, design) refreshed for the new structure; index rows reflect both halves of the gateway feature and the new fips-gateway CLI reference. - Cargo.toml [package.metadata.deb] assets path updated for the fips-security.md move; .gitignore /reference/ rule anchored to repo root so docs/reference/ is trackable. - packaging/openwrt-ipk/files/etc/fips/fips.yaml configuration-doc URL updated to the new docs/reference/configuration.md location. ## Deletions - docs/design/fips-intro.md (split into the three new intro design docs). - docs/design/document-relationships.svg (orphan, no longer referenced). - docs/proposals/ tree removed; the only proposal it contained (the Nostr UDP hole-punch protocol) was rewritten as the new generic design/port-advertisement-and-nat-traversal.md. |
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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>
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2d342a4e47 |
Add diagnostic queries for security validation and mesh debugging
Extend the fipsctl control query interface with visibility into internal
state critical for protocol security auditing, mesh troubleshooting, and
operational monitoring.
New command:
fipsctl show identity-cache
Lists every node identity cached by the daemon (learned from DNS
resolution, peer handshakes, sessions, and static config). Shows
npub, IPv6 address, display name, and LRU age alongside the
configured cache capacity.
Extended queries:
show peers — Noise session counters (send_counter, highest received
counter) for rekey urgency assessment. Per-peer replay suppression
and consecutive decrypt failure counts for active attack detection.
Session index visibility for hijack analysis. Rekey lifecycle
state (in_progress, draining, K-bit epoch).
show sessions — Handshake resend count during establishment for
connectivity debugging. Rekey and session health fields
(session_start, K-bit, coords warmup, drain state) when
established.
show cache — Individual coordinate cache entries with tree
coordinates, depth, path MTU, and age. Enables route-level
debugging by showing exactly which destinations have cached
routes and via what tree path. Renames the top-level count
field from "entries" to "count" for clarity.
show routing — Pending discovery lookups expanded from count to
per-target detail (attempt number, age, last sent). Pending
TUN packet queue depth for backpressure visibility. Connection
retry state per peer (retry count, next attempt, auto-reconnect
flag).
Updates fipstop to match the revised show_cache and show_routing
response schemas. Updates README monitoring section with the complete
fipsctl command list.
Co-authored-by: Johnathan Corgan <johnathan@corganlabs.com>
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5029b40d49 |
Update README for current platform, transport, and example state
- Correct the transport matrix: UDP, TCP, and Tor work on Windows (previously shown as unsupported). Add an OpenWrt column with BLE disabled due to missing libdbus on the target. - Mention the `.fips` DNS resolver and outbound LAN gateway in the Features list, and add the gateway bullet under What works today. - Reframe the Linux DNS resolver setup: the `.deb` package now auto-configures the available backend; the manual resolvectl snippet is shown for tarball and manual installs. - Expand the Examples section to list all three example deployments (Nostr relay sidecar, K8s sidecar, macOS WireGuard sidecar) rather than only the macOS one. - Refresh Project Structure to include the `fips-gateway` binary, the full packaging list (macOS .pkg, Windows ZIP, OpenWrt ipk, AUR in addition to Debian and systemd tarball), and the examples directory. - Mention macOS `.pkg` and Windows ZIP/service packaging in the packaging line of What works today. |
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774e33fd27 |
Add Windows platform support (#45)
Gate platform-specific code behind cfg attributes and add full Windows
support: TUN device via wintun, TCP control socket on localhost:21210,
Windows Service lifecycle (--install-service/--uninstall-service/--service),
CI build and test matrix, and packaging with ZIP builder and PowerShell
service management scripts.
Key changes:
- Cargo.toml: move tun/libc/rtnetlink behind cfg(unix); add wintun and
windows-service dependencies for Windows
- upper/tun.rs: wintun-based TUN implementation with netsh configuration
for IPv6 address, MTU, and fd00::/8 routing
- control/mod.rs: split into unix_impl/windows_impl; Windows uses TCP on
localhost:21210 with shared connection handler
- bin/fips.rs: refactor main() into run_daemon() accepting a shutdown
signal; add Windows Service support via windows-service crate
- transport/udp/socket.rs: platform-gated modules; Windows uses
tokio::net::UdpSocket (kernel drop count unavailable, returns 0)
- transport/ethernet: gate to cfg(unix); add Windows stub types
- config: platform-conditional default paths (socket, hosts) for Windows
- CI: add windows-latest to build matrix and test-windows job with
cargo-nextest
- packaging/windows: build-zip.ps1, install-service.ps1,
uninstall-service.ps1, and package-windows.yml workflow
- README/docs: Windows build instructions, service management, and
control socket platform differences
Linux and macOS behavior is unchanged.
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7258469b18 |
gateway: add macOS wireguard sidecar example (#51)
Add a documented macOS sidecar setup under examples so gateway traffic can be routed through a local Docker WireGuard sidecar for development and testing. Generate persistent FIPS and WireGuard key material on first run and keep those local runtime artifacts out of version control. |
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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 |
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4bc30d2b8a |
doc: improve contributor setup guidance
Expand CONTRIBUTING.md with detailed build prerequisites, Rust toolchain setup (pinned to 1.94.0), and step-by-step first build instructions. Add contributing link to README. |
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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. |
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|
9757877c0a | Update README and changelog for v0.2.0 release | ||
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6c90cf6c02 |
Implement Tor transport with operator visibility
Add TorTransport in src/transport/tor/ supporting three operating modes: Outbound (socks5 mode): - Non-blocking SOCKS5 connect via tokio-socks with per-destination circuit isolation (IsolateSOCKSAuth) - TorAddr enum for .onion and clearnet address types - Connection pool with per-connection receive tasks, reuses TCP stream FMP framing - connect_async()/connection_state_sync()/promote_connection() follow the same non-blocking polling pattern as TCP transport Inbound (directory mode — recommended for production): - Tor manages the onion service via HiddenServiceDir in torrc - FIPS reads .onion address from hostname file at startup - No control port needed — enables Tor Sandbox 1 (seccomp-bpf) - Accept loop mirrors TCP pattern with DirectoryServiceConfig Monitoring (control_port mode and optional in directory mode): - Async control port client supporting TCP and Unix socket connections via Box<dyn AsyncRead/Write> trait objects - AUTHENTICATE with cookie or password auth - 8 GETINFO queries: bootstrap, circuits, traffic, liveness, version, dormant state, SOCKS listeners - Background monitoring task polls every 10s, caches TorMonitoringInfo in Arc<RwLock> for synchronous query access - Bootstrap milestone logging (25/50/75/100%), stall warning (>60s), network liveness transitions, dormant mode entry - Directory mode optionally connects to control port when control_addr is configured (non-fatal on failure) Operator visibility: - show_transports query exposes tor_mode, onion_address, tor_monitoring (bootstrap, circuit_established, traffic, liveness, version, dormant) - fipstop transport detail view: Tor mode, onion address, SOCKS5/control errors, connection stats, Tor daemon status section - fipstop table view: tor(mode) label with truncated onion address hint Security hardening: - Per-destination circuit isolation via IsolateSOCKSAuth - Unix socket default for control port (/run/tor/control) - Reference torrc with HiddenServiceDir, VanguardsLiteEnabled, ConnectionPadding, DoS protections (PoW + intro rate limiting) Config: - TorConfig with socks5, control_port, and directory modes - DirectoryServiceConfig: hostname_file, bind_addr - control_addr, control_auth, cookie_path, connect_timeout, max_inbound_connections Testing: - 69 unit + integration tests with mock SOCKS5 and control servers - Docker tests: socks5-outbound (clearnet via Tor) and directory-mode (HiddenServiceDir onion service) Documentation: - Transport layer design doc: Tor architecture, directory mode - Configuration doc: Tor config tables and examples |
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35ff4a5d0a | Add logos and update readme with banner | ||
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1898a7c390 |
Update repository URLs and finalize CHANGELOG for v0.1.0 release
Update all fips-network/fips references to jmcorgan/fips across Cargo.toml, README, CONTRIBUTING, packaging, and config files. Merge CHANGELOG Unreleased and 0.1.0-alpha sections into a single 0.1.0 release entry. Update README roadmap. |
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f37eb4b846 |
Fix documentation drift from recent feature additions
Update 9 documentation files to match current implementation: - Add missing rekey config section (node.rekey.*) and host mapping section to fips-configuration.md - Update Ethernet frame format from [type:1][payload] to [type:1][length:2 LE][payload] in wire-formats and transport docs - Fix Ethernet effective MTU from interface-1 to interface-3 - Mark rekey as Implemented in mesh-layer and session-layer status tables - Change TCP default port examples from 443 to 8443 - Add rekey, persistent identity, host mapping, mesh size estimation to README features and status sections - Update chaos scenario count from 16 to 20, add rekey topology to static test docs |
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7d9e7f8e18 | Update README peer example with actual test node npub and address | ||
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231ef7c82d |
Add Debian/Ubuntu .deb packaging and update README
Debian packaging via cargo-deb: - Add [package.metadata.deb] to Cargo.toml with assets, dependencies, and conffiles declarations - Maintainer scripts: postinst (create fips group, enable services, restart on upgrade), prerm (stop/disable on remove, stop-only on upgrade), postrm (purge config, keys, group) - Systemd units (fips.service, fips-dns.service) with /usr/bin/ paths for .deb installs - tmpfiles.d entry for /run/fips/ runtime directory - build-deb.sh wrapper script for building packages README rewrite: - Replace run-from-source Quick Start with Building section - Add Installation options: Debian .deb (cargo-deb) and generic Linux (systemd tarball) - Add full Configuration reference with default fips.yaml - Add Usage sections: DNS resolution, monitoring (fipsctl + fipstop), service management, and testing - Update project structure and features list |
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392572f821 |
Update GitHub references from jmcorgan/fips to fips-network/fips
Moved repository to the fips-network organization. Updated repository URL in Cargo.toml, clone URLs in README.md and CONTRIBUTING.md. |
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79feb41a88 |
Update docs for persistent identity, ECN, and multi-transport
- fips-configuration.md: add node.identity.persistent parameter and three-tier identity resolution documentation - fips-intro.md: update ECN description from "reserves space" to reflect implemented hop-by-hop CE signaling - README.md: update transport list (UDP, TCP, Ethernet), add persistent identity mention |
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56d39f223b |
Add ECN congestion signaling and transport congestion detection
Implement hop-by-hop ECN congestion signaling through the FMP layer, transport-level congestion detection via kernel drop counters, and chaos harness integration for end-to-end validation. FMP/session ECN plumbing: - Thread ce_flag parsed at link layer through dispatch_link_message, handle_session_datagram, handle_session_payload, and handle_encrypted_session_msg to session delivery - Replace hardcoded false in session-layer record_recv() with actual ce_flag, activating ecn_ce_count tracking in session MMP ECN congestion detection and CE relay: - Add EcnConfig (node.ecn.*) with configurable loss_threshold (5%) and etx_threshold (3.0) for transit congestion detection - Add send_encrypted_link_message_with_ce() that ORs FLAG_CE into FMP header flags; original method delegates with ce_flag=false - Compute outgoing_ce = incoming_ce || local congestion on next-hop link, enabling hop-by-hop CE relay through transit nodes IPv6 ECN-CE marking: - Mark ECN-CE (0b11) in IPv6 Traffic Class on received DataPackets before TUN delivery when FMP CE flag is set - Only marks ECN-capable packets (ECT(0)/ECT(1)); Not-ECT packets unchanged per RFC 3168 Transport congestion abstraction and UDP kernel drop detection: - Add TransportCongestion struct to transport layer for transport- agnostic local congestion indicators - Replace tokio::UdpSocket with AsyncFd<socket2::Socket> using libc::recvmsg() with ancillary data parsing - Enable SO_RXQ_OVFL for kernel receive buffer drop counter on every packet, wiring up previously-stubbed UdpStats.kernel_drops - Add TransportDropState for per-transport delta tracking with 1s tick sampling via sample_transport_congestion() - Extend detect_congestion() with transport kernel drop check alongside MMP loss metrics Congestion monitoring and control: - Add CongestionStats (ce_forwarded, ce_received, congestion_detected, kernel_drop_events) to NodeStats with snapshot serialization - Wire counters into forwarding path, session handler, and transport drop sampling with rate-limited warn logging (5s interval) - Expose congestion data in show_routing control query and ecn_ce_count in show_mmp peer entries - Add congestion counters to fipstop routing tab in two-column layout Chaos harness integration: - Add query_routing(), query_transports(), snapshot_all_congestion() to chaos control module - Add congestion/kernel-drop log analysis in logs module - Add congestion-stress scenario: 10-node tree, 1 Mbps bandwidth, 5-10% netem loss, heavy iperf3 traffic - Add IngressConfig for tc ingress policing with per-peer policer filters simulating upstream bandwidth bottlenecks - Add iperf3 JSON result capture to traffic manager for throughput measurement across scenarios - Add ECN A/B test scenarios (ecn-ab-on/off.yaml) with ingress policing and comparison script - Enable TCP ECN negotiation (tcp_ecn=1 sysctl) in container entrypoint for end-to-end CE propagation Tests: - 10 ECN unit/integration tests: mark_ipv6_ecn_ce variants, CE relay chain (3-node propagation), EcnConfig serde roundtrip - 3 transport drop congestion detection unit tests Documentation: - Update fips-mesh-layer.md: replace outdated CE Echo stub with full ECN Congestion Signaling section covering detection logic, CE relay, IPv6 marking, session tracking, and monitoring counters - Update fips-configuration.md: add node.ecn.* parameter table and ecn block in complete reference YAML - Update fips-transport-layer.md: add Congestion Reporting section with TransportCongestion struct, congestion() trait method, and per-transport status; document AsyncFd/recvmsg/SO_RXQ_OVFL in UDP - Update chaos README: add congestion/ECN scenario docs, ingress traffic control, and iperf3 JSON capture sections - Update README.md: add ECN to features list and "What works today"; update transport and tooling entries |
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daf1e629df |
Change default UDP port to 2121 and EtherType to 0x2121
Update the default UDP bind port from 4000 to 2121 (decimal) and the default Ethernet EtherType from 0x88B5 to 0x2121 across all source code, documentation, configuration templates, test fixtures, and scripts. Remove references to "IEEE 802 experimental range" since 0x2121 is not in that range. |
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7260ad2878 |
Improve README and enable DNS resolver by default
Rework top-level README: add badges, status/roadmap section, config search path docs, minimal two-node example with transports, DNS setup instructions with systemd-resolved and resolv.conf examples, and connectivity test walkthrough. Replace ASCII document-relationship diagram with SVG in design docs. Change DNS resolver default from disabled to enabled (port 5354). Update config merge to allow higher-priority configs to disable it. |
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00e26765bd |
Design documentation illustration and review pass
Wire format diagrams: - Add 24 SVG diagrams covering every FMP and FSP wire format: common prefix, established frame headers, Noise IK handshake messages, handshake flow, TreeAnnounce, AncestryEntry, FilterAnnounce, LookupRequest/Response, SessionDatagram, Disconnect, SenderReport, ReceiverReport, FSP complete message, SessionSetup/Ack/Msg3, PathMtuNotification, CoordsRequired, PathBroken, and MtuExceeded - Replace ASCII art in fips-wire-formats.md with SVG references - Apply text edits to fips-mesh-layer.md, fips-mesh-operation.md, fips-transport-layer.md, and fips-ipv6-adapter.md Spanning tree dynamics: - Add 12 topology SVG diagrams: node join (overview + 3-panel steps), three-node convergence (4-panel), link addition with depth labels, link removal, partition formation, and 6 real-world example diagrams (office, mixed-link, two-site WAN topologies) - Rewrite all code blocks to narrative prose with diagram references - Add inline prior art attributions distinguishing Yggdrasil-derived concepts from FIPS-novel contributions - Add 3 new references (De Couto ETX, IEEE 802.1D, RFC 2328 OSPF) and Prior Art summary - Remove outdated sections: indirect partition note, integration test gaps, DHT-based lookup reference - Change "must elect a new root" to "must rediscover its new root" Spanning tree design review (fips-spanning-tree.md): - Rename "Root Election" to "Root Discovery" across docs - Add "What Is a Spanning Tree?" introductory section - Add parent selection intro explaining self-organization role - Fix tree distance example: 4 hops, not 2 - Clarify timestamp field as advisory only - Remove unimplemented ROOT_TIMEOUT and TREE_ENTRY_TTL from timing parameters and implementation status tables Bloom filter design review (fips-bloom-filters.md): - Add "What Is a Bloom Filter?" intro section - Rewrite Purpose section to frame filters as routing path identification - Correct FPR analysis (old values were 3-50x overstated) - Add Filter Occupancy Model based on network size and tree position - Fix filter expiration to describe actual MMP-based cleanup - Combine Scale Considerations with Size Classes after Wire Format - Fix stale FPR values in src/bloom/mod.rs comments Session layer review (fips-session-layer.md): - Add inline prior art attributions: Noise Protocol Framework, WireGuard, DTLS (RFC 6347), IKEv2 (RFC 7296), RFC 1191 PMTUD, Yggdrasil, NIP-44 - Replace warmup state machine ASCII art with SVG diagram - Convert CoordsWarmup wire format code block to prose - Add External References section with full citations Level 5 implementation doc cleanup: - Delete fips-software-architecture.md (redundant with protocol layer docs) - Delete fips-state-machines.md (Rust tutorial, not protocol design) - Add fipsctl command reference to README.md - Update cross-references in fips-intro.md, docs/design/README.md, fips-transport-layer.md, fips-configuration.md Fixes: - Correct fd::/8 to fd00::/8 in fips-session-layer.md, fips-identity-derivation.svg, and fips-node-architecture.svg - Fix config example MTU: 1197 → 1472 in fips-configuration.md File organization: - Move all SVG diagrams into docs/design/diagrams/ subdirectory - Update all diagram references to use new paths |
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dc89edf60b |
Update design docs for session 142 implementation changes
Comprehensive documentation review across 12 files to reflect: - Noise XK at FSP (was IK), 3-message handshake, SessionMsg3 wire format - Epoch exchange in Noise handshakes for peer restart detection - Per-link MTU, min_mtu/path_mtu in lookup packets - MtuExceeded (0x22) error signal wire format and behavior - LookupResponse proof now covers target_coords - Discovery reverse-path routing as primary (not greedy) - Control socket architecture and fipsctl binary - FSP handshake state machine (Initiating/AwaitingMsg3/Established) - Root timeout framing updated for heartbeat cascading |
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92d5df8037 |
Add open-source project scaffolding
Add standard open-source project files for public repository presentability: - README.md with protocol overview, Nostr identity integration, feature highlights, quick start, and project structure - MIT LICENSE (Copyright 2026 Johnathan Corgan) - CONTRIBUTING.md with guidelines for issues, PRs, and testing - Cargo.toml metadata (description, license, authors, repository, readme) - .gitignore expanded with editor/IDE patterns and .claude/ |