Libp2p quic second attempt

Cargo.toml

@@ -14,15 +14,16 @@ default = [
     "deflate",
     "dns-async-std",
     "floodsub",
+    "gossipsub",
     "identify",
     "kad",
-    "gossipsub",
     "mdns",
     "mplex",
     "noise",
     "ping",
     "plaintext",
     "pnet",
+    "quic",
     "relay",
     "request-response",
     "rendezvous",
@@ -37,16 +38,17 @@ deflate = ["libp2p-deflate"]
 dns-async-std = ["libp2p-dns", "libp2p-dns/async-std"]
 dns-tokio = ["libp2p-dns", "libp2p-dns/tokio"]
 floodsub = ["libp2p-floodsub"]
+gossipsub = ["libp2p-gossipsub"]
 identify = ["libp2p-identify", "libp2p-metrics/identify"]
 kad = ["libp2p-kad", "libp2p-metrics/kad"]
-gossipsub = ["libp2p-gossipsub"]
 metrics = ["libp2p-metrics"]
 mdns = ["libp2p-mdns"]
 mplex = ["libp2p-mplex"]
 noise = ["libp2p-noise"]
 ping = ["libp2p-ping", "libp2p-metrics/ping"]
 plaintext = ["libp2p-plaintext"]
 pnet = ["libp2p-pnet"]
+quic = ["libp2p-quic"]
 relay = ["libp2p-relay"]
 request-response = ["libp2p-request-response"]
 rendezvous = ["libp2p-rendezvous"]
@@ -97,6 +99,7 @@ wasm-timer = "0.2.4"
 libp2p-deflate = { version = "0.30.0", path = "transports/deflate", optional = true }
 libp2p-dns = { version = "0.30.0", path = "transports/dns", optional = true, default-features = false }
 libp2p-mdns = { version = "0.32.0", path = "protocols/mdns", optional = true }
+libp2p-quic = { version = "0.6.0", path = "transports/quic", optional = true }
 libp2p-tcp = { version = "0.30.0", path = "transports/tcp", default-features = false, optional = true }
 libp2p-websocket = { version = "0.31.0", path = "transports/websocket", optional = true }
 
@@ -132,6 +135,7 @@ members = [
     "transports/noise",
     "transports/plaintext",
     "transports/pnet",
+    "transports/quic",
     "transports/tcp",
     "transports/uds",
     "transports/websocket",

src/lib.rs

@@ -100,6 +100,11 @@ pub use libp2p_plaintext as plaintext;
 #[cfg_attr(docsrs, doc(cfg(feature = "pnet")))]
 #[doc(inline)]
 pub use libp2p_pnet as pnet;
+#[cfg(feature = "quic")]
+#[cfg_attr(docsrs, doc(cfg(feature = "quic")))]
+#[cfg(not(any(target_os = "emscripten", target_os = "wasi", target_os = "unknown")))]
+#[doc(inline)]
+pub use libp2p_quic as quic;
 #[cfg(feature = "relay")]
 #[cfg_attr(docsrs, doc(cfg(feature = "relay")))]
 #[doc(inline)]

transports/quic/Cargo.toml

@@ -0,0 +1,45 @@
+[package]
+name = "libp2p-quic"
+version = "0.6.0"
+authors = ["David Craven <david@craven.ch>", "Parity Technologies <admin@parity.io>"]
+edition = "2018"
+description = "TLS and Noise based QUIC transport implementation for libp2p"
+repository = "https://github.com/libp2p/rust-libp2p"
+license = "MIT"
+
+[features]
+noise = ["quinn-noise", "ed25519-dalek"]
+tls = ["barebones-x509", "quinn-proto/tls-rustls", "rcgen", "ring", "rustls", "untrusted", "webpki", "yasna"]
+
+[dependencies]
+async-global-executor = "2.0.2"
+async-io = "1.6.0"
+barebones-x509 = { version = "0.5.0", optional = true, features = ["webpki", "rustls", "std"] }
+bytes = "1.0.1"
+ed25519-dalek = { version = "1.0.1", optional = true }
+futures = "0.3.15"
+if-watch = "0.2.2"
+libp2p-core = { version = "0.30.0", path = "../../core" }
+multihash = { version = "0.14.0", default-features = false }
+parking_lot = "0.11.1"
+quinn-noise = { version = "0.3.0", optional = true }
+quinn-proto = { version = "0.7.3", default-features = false }
+rcgen = { version = "0.8.11", optional = true }
+ring = { version = "0.16.20", optional = true }
+rustls = { version = "0.19.1", optional = true, features = ["dangerous_configuration"] }
+thiserror = "1.0.26"
+tracing = "0.1.26"
+udp-socket = "0.1.5"
+untrusted = { version = "0.7.1", optional = true }
+webpki = { version = "0.21.4", optional = true, features = ["std"] }
+yasna = { version = "0.4.0", optional = true }
+
+[dev-dependencies]
+anyhow = "1.0.41"
+async-std = { version = "1.9.0", features = ["attributes"] }
+async-trait = "0.1.50"
+libp2p = { version = "0.40.0", default-features = false, features = ["request-response"], path = "../.." }
+log-panics = "2.0.0"
+rand = "0.8.4"
+rand_core = "0.5.1"
+tracing-subscriber = "0.2.19"

transports/quic/src/crypto.rs

@@ -0,0 +1,199 @@
+use libp2p_core::PeerId;
+use quinn_proto::crypto::Session;
+use quinn_proto::TransportConfig;
+use std::sync::Arc;
+
+pub struct CryptoConfig<C: Crypto> {
+    pub keypair: C::Keypair,
+    pub psk: Option<[u8; 32]>,
+    pub keylogger: Option<C::Keylogger>,
+    pub transport: Arc<TransportConfig>,
+}
+
+#[cfg(feature = "noise")]
+trait CloneKeypair {
+    fn clone_keypair(&self) -> Self;
+}
+
+#[cfg(feature = "noise")]
+impl CloneKeypair for ed25519_dalek::Keypair {
+    fn clone_keypair(&self) -> Self {
+        ed25519_dalek::Keypair::from_bytes(&self.to_bytes()).expect("serde works")
+    }
+}
+
+pub trait ToLibp2p {
+    fn to_public(&self) -> libp2p_core::identity::PublicKey;
+    fn to_peer_id(&self) -> PeerId {
+        self.to_public().to_peer_id()
+    }
+}
+
+#[cfg(feature = "noise")]
+impl ToLibp2p for ed25519_dalek::Keypair {
+    fn to_public(&self) -> libp2p_core::identity::PublicKey {
+        self.public.to_public()
+    }
+}
+
+#[cfg(feature = "noise")]
+impl ToLibp2p for ed25519_dalek::PublicKey {
+    fn to_public(&self) -> libp2p_core::identity::PublicKey {
+        let public_key = self.to_bytes();
+        let public_key =
+            libp2p_core::identity::ed25519::PublicKey::decode(&public_key[..]).unwrap();
+        libp2p_core::identity::PublicKey::Ed25519(public_key)
+    }
+}
+
+#[cfg(feature = "tls")]
+impl ToLibp2p for libp2p_core::identity::Keypair {
+    fn to_public(&self) -> libp2p_core::identity::PublicKey {
+        self.public()
+    }
+}
+
+pub trait Crypto: std::fmt::Debug + Clone + 'static {
+    type Session: Session + Unpin;
+    type Keylogger: Send + Sync;
+    type Keypair: Send + Sync + ToLibp2p;
+    type PublicKey: Send + std::fmt::Debug + PartialEq<Self::PublicKey>;
+
+    fn new_server_config(
+        config: &Arc<CryptoConfig<Self>>,
+    ) -> <Self::Session as Session>::ServerConfig;
+    fn new_client_config(
+        config: &Arc<CryptoConfig<Self>>,
+        remote_public: Self::PublicKey,
+    ) -> <Self::Session as Session>::ClientConfig;
+    fn supported_quic_versions() -> Vec<u32>;
+    fn default_quic_version() -> u32;
+    fn peer_id(session: &Self::Session) -> Option<PeerId>;
+    fn extract_public_key(generic_key: libp2p_core::PublicKey) -> Option<Self::PublicKey>;
+    fn keylogger() -> Self::Keylogger;
+}
+
+#[cfg(feature = "noise")]
+#[derive(Clone, Copy, Debug)]
+pub struct NoiseCrypto;
+
+#[cfg(feature = "noise")]
+impl Crypto for NoiseCrypto {
+    type Session = quinn_noise::NoiseSession;
+    type Keylogger = Arc<dyn quinn_noise::KeyLog>;
+    type Keypair = ed25519_dalek::Keypair;
+    type PublicKey = ed25519_dalek::PublicKey;
+
+    fn new_server_config(
+        config: &Arc<CryptoConfig<Self>>,
+    ) -> <Self::Session as Session>::ServerConfig {
+        Arc::new(
+            quinn_noise::NoiseServerConfig {
+                keypair: config.keypair.clone_keypair(),
+                psk: config.psk,
+                keylogger: config.keylogger.clone(),
+                supported_protocols: vec![b"libp2p".to_vec()],
+            }
+            .into(),
+        )
+    }
+
+    fn new_client_config(
+        config: &Arc<CryptoConfig<Self>>,
+        remote_public_key: Self::PublicKey,
+    ) -> <Self::Session as Session>::ClientConfig {
+        quinn_noise::NoiseClientConfig {
+            keypair: config.keypair.clone_keypair(),
+            psk: config.psk,
+            alpn: b"libp2p".to_vec(),
+            remote_public_key,
+            keylogger: config.keylogger.clone(),
+        }
+        .into()
+    }
+
+    fn supported_quic_versions() -> Vec<u32> {
+        quinn_noise::SUPPORTED_QUIC_VERSIONS.to_vec()
+    }
+
+    fn default_quic_version() -> u32 {
+        quinn_noise::DEFAULT_QUIC_VERSION
+    }
+
+    fn peer_id(session: &Self::Session) -> Option<PeerId> {
+        Some(session.peer_identity()?.to_peer_id())
+    }
+
+    fn extract_public_key(generic_key: libp2p_core::PublicKey) -> Option<Self::PublicKey> {
+        let public_key = if let libp2p_core::PublicKey::Ed25519(public_key) = generic_key {
+            public_key.encode()
+        } else {
+            return None;
+        };
+        Self::PublicKey::from_bytes(&public_key).ok()
+    }
+
+    fn keylogger() -> Self::Keylogger {
+        Arc::new(quinn_noise::KeyLogFile::new())
+    }
+}
+
+#[cfg(feature = "tls")]
+#[derive(Clone, Copy, Debug)]
+pub struct TlsCrypto;
+
+#[cfg(feature = "tls")]
+impl Crypto for TlsCrypto {
+    type Session = quinn_proto::crypto::rustls::TlsSession;
+    type Keylogger = Arc<dyn rustls::KeyLog>;
+    type Keypair = libp2p_core::identity::Keypair;
+    type PublicKey = libp2p_core::identity::PublicKey;
+
+    fn new_server_config(
+        config: &Arc<CryptoConfig<Self>>,
+    ) -> <Self::Session as Session>::ServerConfig {
+        assert!(config.psk.is_none(), "invalid config");
+        let mut server = crate::tls::make_server_config(&config.keypair).expect("invalid config");
+        if let Some(key_log) = config.keylogger.clone() {
+            server.key_log = key_log;
+        }
+        Arc::new(server)
+    }
+
+    fn new_client_config(
+        config: &Arc<CryptoConfig<Self>>,
+        remote_public: Self::PublicKey,
+    ) -> <Self::Session as Session>::ClientConfig {
+        assert!(config.psk.is_none(), "invalid config");
+        let mut client =
+            crate::tls::make_client_config(&config.keypair, remote_public.to_peer_id())
+                .expect("invalid config");
+        if let Some(key_log) = config.keylogger.clone() {
+            client.key_log = key_log;
+        }
+        Arc::new(client)
+    }
+
+    fn supported_quic_versions() -> Vec<u32> {
+        quinn_proto::DEFAULT_SUPPORTED_VERSIONS.to_vec()
+    }
+
+    fn default_quic_version() -> u32 {
+        quinn_proto::DEFAULT_SUPPORTED_VERSIONS[0]
+    }
+
+    fn peer_id(session: &Self::Session) -> Option<PeerId> {
+        let certificate = session.get_peer_certificates()?.into_iter().next()?;
+        Some(crate::tls::extract_peerid_or_panic(
+            quinn_proto::Certificate::from(certificate).as_der(),
+        ))
+    }
+
+    fn extract_public_key(generic_key: libp2p_core::PublicKey) -> Option<Self::PublicKey> {
+        Some(generic_key)
+    }
+
+    fn keylogger() -> Self::Keylogger {
+        Arc::new(rustls::KeyLogFile::new())
+    }
+}