New feature: call someone directly by fingerprint through the relay.
- Client connects with SNI "_signal" for persistent signaling
- RegisterPresence/RegisterPresenceAck for relay registration
- DirectCallOffer routed to target by fingerprint
- DirectCallAnswer with AcceptGeneric/AcceptTrusted/Reject modes
- Relay creates private room (call-{id}), sends CallSetup to both
- Both clients connect to private room for media (existing SFU path)
- Hangup forwarding + cleanup on disconnect
- Desktop CLI: --signal + --call <fingerprint> for testing
- CallRegistry tracks call state (Pending/Ringing/Active/Ended)
- SignalHub manages persistent signaling connections
Tested: Alice calls Bob by fingerprint, relay routes offer, Bob
auto-accepts, both join private room, media flows bidirectionally.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
RoomParticipant.relay_label identifies which relay a participant is
connected to. Local participants have None, federated participants
get tagged with the peer relay's label when storing remote_participants.
This enables clients to group participants by relay in the UI.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
GlobalRoomActive signal now carries participant list from the
announcing relay. When received, the relay:
1. Stores remote participants per peer link
2. Broadcasts merged RoomUpdate to local clients (local + all remote)
This means clients on different relays can now SEE each other in the
participant list. Also fixes build: removed non-existent metric field
references that were added by linter.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Major rewrite of relay federation replacing virtual participants with
a clean router model:
1. Global rooms: [[global_rooms]] in TOML config declares rooms that
are bridged across federation. Each relay is a router + local SFU.
2. Room events: RoomManager emits LocalJoin/LocalLeave via broadcast
channel when rooms transition between empty and non-empty.
3. GlobalRoomActive/Inactive signals: relays announce when they have
local participants in global rooms. Peers track active state and
forward media accordingly. Announcements propagate for multi-hop.
4. Media forwarding: separated from SFU loop. Local participant sends
via mpsc channel → egress task → forward_to_peers() → room-hash
tagged datagrams to active peer links. Inbound datagrams delivered
to local participants + forwarded to other active peers (multi-hop).
5. Loop prevention: don't forward back to source relay.
6. Room name hashing: is_global_room() checks both plain name and
hash (clients hash room names for SNI privacy).
Removed: ParticipantSender::Federation, federated_participants, virtual
participant join/leave, periodic room polling. Rooms now only contain
local participants.
Signaling tested: 3-relay chain (A→B←C) correctly propagates
GlobalRoomActive through B to both A and C. Media forwarding plumbing
in place but needs final debugging.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Added [[trusted]] config: relay B can accept inbound federation
from relay A by fingerprint alone, without knowing A's address.
A connects to B with [[peers]], B trusts A with [[trusted]].
- FederationHello signal: outbound connections send their TLS
fingerprint as first signal. The accepting relay verifies it
against [[peers]] (by IP) or [[trusted]] (by fingerprint).
- Tested 3-relay chain: A→B←C. Both A and C connect to B, B trusts
both. B correctly accepts both inbound connections. Room
announcements flow A→B and C→B.
- Remaining: B needs to announce rooms back to A and C on the same
connection so media can flow A→B→C. Currently A has no virtual
participant for B, so media doesn't reach B's SFU for forwarding.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Phase 1 of relay federation:
1. Signal messages: FederationRoomJoin/Leave/ParticipantUpdate added
to SignalMessage enum for relay-to-relay room coordination.
2. Room changes: ParticipantOrigin (Local/Federated) tracking, loop
prevention (federated media only forwards to local participants),
ParticipantSender::Federation with 8-byte room-hash prefixed
datagrams, merged participant lists (local + remote), new methods:
join_federated(), update_federated_participants(), local_senders(),
active_rooms(), local_participants().
3. FederationManager: connects to configured peers via QUIC with SNI
"_federation", reconnects with exponential backoff (5s-300s),
exchanges FederationRoomJoin signals, runs recv loops for both
signals and media datagrams, creates virtual participants in rooms.
4. Accept-side: _federation SNI handling in main.rs, unknown peer
gets helpful "add to relay.toml" log message, recognized peers
handed off to FederationManager.
TODO: TLS fingerprint verification — currently outbound connections
use client_config() which doesn't present a cert, so inbound
verification fails. Need mutual TLS or URL-based peer matching.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Add SettingsScreen with identity (alias, key backup/restore), audio defaults,
server management, network prefs, and default room
- SettingsRepository persists all settings via SharedPreferences
- Auto-generate random display names on first launch (e.g. "Swift Wolf")
- Thread alias through CallOffer → relay handshake → RoomUpdate broadcast
- Derive caller fingerprint from identity key in relay handshake (fixes null
fingerprints when --auth-url is not set)
- Persist identity seed for stable fingerprints across reconnects
- Add alias field to SignalMessage::CallOffer (serde default for backward compat)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
- Add RoomUpdate signal message to wzp-proto with participant count + list
- Add RoomParticipant struct (fingerprint + optional alias)
- Store fingerprint/alias in relay Participant struct
- Broadcast RoomUpdate to all room members on join and leave
- Add signal recv task in Android engine to handle RoomUpdate
- Surface room_participant_count + room_participants in CallStats JSON
- Show "X in room" with participant names in Android in-call UI
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
RelayLink: QUIC connection to peer relay (SNI "_relay") for forwarding
specific sessions. Methods: connect, forward, add/remove_session, is_idle.
RelayLinkManager: manages connections to multiple peers.
- get_or_connect: lazy connection establishment
- forward_to: send media packet to specific peer
- register/unregister_session: track which sessions use which links
- Auto-closes idle links on session unregister
Protocol: added SignalMessage::SessionForward { session_id,
target_fingerprint, source_relay } and SessionForwardAck { session_id,
room_name } for relay-link session setup signaling.
Building block for P3-T7 (call setup over mesh) which wires
route resolution + relay links + handshake into a complete flow.
62 relay tests + 42 proto tests passing (7 new relay_link tests).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
RouteResolver queries PresenceRegistry to determine how to reach a target:
- Route::Local — connected to this relay
- Route::DirectPeer(addr) — on a directly connected peer relay
- Route::Chain(addrs) — multi-hop (structure ready, single-hop for now)
- Route::NotFound — not in any known relay
Protocol: added SignalMessage::RouteQuery { fingerprint, ttl } and
RouteResponse { fingerprint, found, relay_chain } for peer-to-peer
route queries over probe connections.
HTTP API: GET /route/:fingerprint returns JSON with route type + chain.
Relay handles incoming RouteQuery on probe connections: looks up locally,
replies with RouteResponse. TTL decremented for future multi-hop forwarding.
55 relay tests + 42 proto tests passing (7 new route tests).
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
PresenceRegistry tracks who is connected where:
- register_local/unregister_local for directly connected users
- update_peer for fingerprints reported by peer relays
- lookup returns Local or Remote(addr)
- expire_stale removes entries older than timeout
Gossip via probe connections:
- New SignalMessage::PresenceUpdate { fingerprints, relay_addr }
- Probes send local fingerprints every 10s alongside Ping/Pong
- Receiving relay updates its remote presence table
HTTP API on metrics port:
- GET /presence — all known fingerprints + locations
- GET /presence/:fingerprint — single lookup
- GET /peers — peer relays + their connected users
Wired into relay main:
- Registry created at startup
- register_local after auth+handshake
- unregister_local on disconnect
- Passed to probe mesh and metrics server
Also marks FC-10 as DONE in integration tracker.
48 relay tests + 42 proto tests passing.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
T6 wiring: Trunking in relay hot path
- TrunkedForwarder wraps transport with TrunkBatcher
- run_participant uses 5ms flush timer when trunking enabled
- send_trunk/recv_trunk on QuinnTransport
- --trunking flag on relay config
- 2 new tests: forwarder batches, auto-flush on full
T7 wiring: Mini-frames in encoder/decoder
- MediaPacket::encode_compact/decode_compact with MiniFrameContext
- CallEncoder sends mini-headers for consecutive frames (full every 50th)
- CallDecoder auto-detects full vs mini on receive
- mini_frames_enabled in CallConfig (default true)
- 3 new tests: encode/decode sequence, periodic full, disabled mode
Noise suppression (nnnoiseless/RNNoise)
- NoiseSupressor in wzp-codec: pure Rust ML-based noise removal
- Processes 960-sample frames as two 480-sample halves
- Integrated in CallEncoder before silence detection
- noise_suppression in CallConfig (default true)
- 4 new tests: creation, processing, SNR improvement, passthrough
T1-S4: Adaptive playout delay
- AdaptivePlayoutDelay: EMA-based jitter tracking (NetEq-inspired)
- Computes target_delay from observed inter-arrival jitter
- JitterBuffer::new_adaptive() uses adaptive delay
- adaptive_jitter in CallConfig (default true)
- 5 new tests: stable, jitter increase, recovery, clamping, estimate
272 tests passing across all crates.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
WZP-S-2: Relay token authentication
- New --auth-url flag: relay calls POST {url} with bearer token
- Clients must send SignalMessage::AuthToken as first signal
- Relay validates against featherChat's /v1/auth/validate endpoint
- Rejects unauthenticated clients before they join rooms
- New auth.rs module with validate_token() + tests
WZP-S-3: featherChat signaling bridge
- New featherchat.rs module for CallSignal interop
- WzpCallPayload: wraps SignalMessage + relay_addr + room name
- encode_call_payload/decode_call_payload for JSON serialization
- CallSignalType enum mirrors featherChat's variant
- signal_to_call_type maps WZP signals to FC types
Protocol: Added SignalMessage::AuthToken { token } variant
129 tests passing across all crates.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
