9fb92967eb
Every QUIC endpoint was bound to 0.0.0.0:0 (IPv4-only). This silently killed ALL IPv6 host candidates: the Dialer couldn't send packets to [2a0d:...] addresses (wrong address family on the socket), and the Acceptor couldn't receive incoming IPv6 QUIC handshakes. The IPv6 candidates were gathered and advertised in DirectCallOffer/Answer but were completely non-functional. On same-LAN with dual-stack (which both test phones have), this meant: - JoinSet fanned out 3+ candidates (2× IPv6 + 1× IPv4) - IPv6 dials failed silently or timed out - IPv4 dial worked but competed with failed IPv6 for JoinSet attention - Sometimes the JoinSet returned an IPv6 failure before the IPv4 success, causing unnecessary fallback to relay Fix: bind to [::]:0 (IPv6 any) instead of 0.0.0.0:0. On dual-stack systems (Linux/Android default), [::]:0 creates a socket that handles BOTH: - IPv6 natively (global unicast, ULA) - IPv4 via v4-mapped addresses (::ffff:172.16.81.x) One socket, both protocols. All 7 bind sites updated: - register_signal (signal endpoint) - do_register_signal - ping_relay - probe_reflect_addr (fresh endpoint fallback) - dual_path::race (A-role fresh, D-role fresh, relay fresh) With this fix, same-LAN P2P should prefer the IPv6 path (no NAT, direct routing, lower latency) and fall through to IPv4 if IPv6 fails — relay is the last resort after ALL candidates are exhausted. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
WarzonePhone
Custom lossy VoIP protocol built in Rust. E2E encrypted, FEC-protected, adaptive quality, designed for hostile network conditions.
Quick Start
# Build
cargo build --release
# Run relay
./target/release/wzp-relay --listen 0.0.0.0:4433
# Send a test tone
./target/release/wzp-client --send-tone 5 relay-addr:4433
# Web bridge (browser calls)
./target/release/wzp-web --port 8080 --relay 127.0.0.1:4433 --tls
# Open https://localhost:8080/room-name in two browser tabs
Architecture
See docs/ARCHITECTURE.md for the full system architecture with Mermaid diagrams covering:
- System overview and data flow
- Crate dependency graph (8 crates)
- Wire formats (MediaHeader, MiniHeader, TrunkFrame, SignalMessage)
- Cryptographic handshake (X25519 + Ed25519 + ChaCha20-Poly1305)
- Identity model (BIP39 seed, featherChat compatible)
- Quality profiles (GOOD/DEGRADED/CATASTROPHIC)
- FEC protection (RaptorQ with interleaving)
- Adaptive jitter buffer (NetEq-inspired)
- Telemetry stack (Prometheus + Grafana)
- Deployment topology
Features
- 3 quality tiers: Opus 24k (28.8 kbps) / Opus 6k (9 kbps) / Codec2 1200 (2.4 kbps)
- RaptorQ FEC: Recovers from 20-100% packet loss depending on tier
- E2E encryption: ChaCha20-Poly1305 with X25519 key exchange
- Adaptive jitter buffer: EMA-based playout delay tracking
- Silence suppression: VAD + comfort noise (~50% bandwidth savings)
- ML noise removal: RNNoise (nnnoiseless pure Rust port)
- Mini-frames: 67% header compression for steady-state packets
- Trunking: Multiplex sessions into batched datagrams
- featherChat integration: Shared BIP39 identity, token auth, call signaling
- Prometheus metrics: Relay, web bridge, inter-relay probes
- Grafana dashboard: Pre-built JSON with 18 panels
Documentation
| Document | Description |
|---|---|
| ARCHITECTURE.md | Full system architecture with diagrams |
| TELEMETRY.md | Prometheus metrics specification |
| INTEGRATION_TASKS.md | featherChat integration tracker |
| WZP-FC-SHARED-CRATES.md | Shared crate strategy |
| grafana-dashboard.json | Importable Grafana dashboard |
Binaries
| Binary | Description |
|---|---|
wzp-relay |
Relay daemon (SFU room mode, forward mode, probes) |
wzp-client |
CLI client (send-tone, record, live mic, echo-test, drift-test, sweep) |
wzp-web |
Browser bridge (HTTPS + WebSocket + AudioWorklet) |
wzp-bench |
Component benchmarks |
Linux Build
./scripts/build-linux.sh --prepare # Create Hetzner VM + install deps
./scripts/build-linux.sh --build # Build release binaries
./scripts/build-linux.sh --transfer # Download to target/linux-x86_64/
./scripts/build-linux.sh --destroy # Delete VM
Tests
cargo test --workspace # 272 tests
License
MIT OR Apache-2.0