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refactor(quic): rewrite quic using quinn
Rewrite quic using quinn instead of quinn-proto. libp2p-quic::endpoint::Driver is eliminated (and that hard quinn-proto machinery). Also: - ECN bits are handled - Support Generic Send Offload (GSO) Pull-Request: #3454.
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| Original file line number | Diff line number | Diff line change |
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| // Copyright 2017-2020 Parity Technologies (UK) Ltd. | ||
| // | ||
| // Permission is hereby granted, free of charge, to any person obtaining a | ||
| // copy of this software and associated documentation files (the "Software"), | ||
| // to deal in the Software without restriction, including without limitation | ||
| // the rights to use, copy, modify, merge, publish, distribute, sublicense, | ||
| // and/or sell copies of the Software, and to permit persons to whom the | ||
| // Software is furnished to do so, subject to the following conditions: | ||
| // | ||
| // The above copyright notice and this permission notice shall be included in | ||
| // all copies or substantial portions of the Software. | ||
| // | ||
| // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | ||
| // OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
| // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
| // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
| // DEALINGS IN THE SOFTWARE. | ||
|
|
||
| use quinn::VarInt; | ||
| use std::{sync::Arc, time::Duration}; | ||
|
|
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| /// Config for the transport. | ||
| #[derive(Clone)] | ||
| pub struct Config { | ||
| /// Timeout for the initial handshake when establishing a connection. | ||
| /// The actual timeout is the minimum of this and the [`Config::max_idle_timeout`]. | ||
| pub handshake_timeout: Duration, | ||
| /// Maximum duration of inactivity in ms to accept before timing out the connection. | ||
| pub max_idle_timeout: u32, | ||
| /// Period of inactivity before sending a keep-alive packet. | ||
| /// Must be set lower than the idle_timeout of both | ||
| /// peers to be effective. | ||
| /// | ||
| /// See [`quinn::TransportConfig::keep_alive_interval`] for more | ||
| /// info. | ||
| pub keep_alive_interval: Duration, | ||
| /// Maximum number of incoming bidirectional streams that may be open | ||
| /// concurrently by the remote peer. | ||
| pub max_concurrent_stream_limit: u32, | ||
|
|
||
| /// Max unacknowledged data in bytes that may be send on a single stream. | ||
| pub max_stream_data: u32, | ||
|
|
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| /// Max unacknowledged data in bytes that may be send in total on all streams | ||
| /// of a connection. | ||
| pub max_connection_data: u32, | ||
|
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| /// Support QUIC version draft-29 for dialing and listening. | ||
| /// | ||
| /// Per default only QUIC Version 1 / [`libp2p_core::multiaddr::Protocol::QuicV1`] | ||
| /// is supported. | ||
| /// | ||
| /// If support for draft-29 is enabled servers support draft-29 and version 1 on all | ||
| /// QUIC listening addresses. | ||
| /// As client the version is chosen based on the remote's address. | ||
| pub support_draft_29: bool, | ||
|
|
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| /// TLS client config for the inner [`quinn::ClientConfig`]. | ||
| client_tls_config: Arc<rustls::ClientConfig>, | ||
| /// TLS server config for the inner [`quinn::ServerConfig`]. | ||
| server_tls_config: Arc<rustls::ServerConfig>, | ||
| } | ||
|
|
||
| impl Config { | ||
| /// Creates a new configuration object with default values. | ||
| pub fn new(keypair: &libp2p_identity::Keypair) -> Self { | ||
| let client_tls_config = Arc::new(libp2p_tls::make_client_config(keypair, None).unwrap()); | ||
| let server_tls_config = Arc::new(libp2p_tls::make_server_config(keypair).unwrap()); | ||
| Self { | ||
| client_tls_config, | ||
| server_tls_config, | ||
| support_draft_29: false, | ||
| handshake_timeout: Duration::from_secs(5), | ||
| max_idle_timeout: 30 * 1000, | ||
| max_concurrent_stream_limit: 256, | ||
| keep_alive_interval: Duration::from_secs(15), | ||
| max_connection_data: 15_000_000, | ||
|
|
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| // Ensure that one stream is not consuming the whole connection. | ||
| max_stream_data: 10_000_000, | ||
| } | ||
| } | ||
| } | ||
|
|
||
| /// Represents the inner configuration for [`quinn`]. | ||
| #[derive(Debug, Clone)] | ||
| pub(crate) struct QuinnConfig { | ||
| pub(crate) client_config: quinn::ClientConfig, | ||
| pub(crate) server_config: quinn::ServerConfig, | ||
| pub(crate) endpoint_config: quinn::EndpointConfig, | ||
| } | ||
|
|
||
| impl From<Config> for QuinnConfig { | ||
| fn from(config: Config) -> QuinnConfig { | ||
| let Config { | ||
| client_tls_config, | ||
| server_tls_config, | ||
| max_idle_timeout, | ||
| max_concurrent_stream_limit, | ||
| keep_alive_interval, | ||
| max_connection_data, | ||
| max_stream_data, | ||
| support_draft_29, | ||
| handshake_timeout: _, | ||
| } = config; | ||
| let mut transport = quinn::TransportConfig::default(); | ||
| // Disable uni-directional streams. | ||
| transport.max_concurrent_uni_streams(0u32.into()); | ||
| transport.max_concurrent_bidi_streams(max_concurrent_stream_limit.into()); | ||
| // Disable datagrams. | ||
| transport.datagram_receive_buffer_size(None); | ||
| transport.keep_alive_interval(Some(keep_alive_interval)); | ||
| transport.max_idle_timeout(Some(VarInt::from_u32(max_idle_timeout).into())); | ||
| transport.allow_spin(false); | ||
| transport.stream_receive_window(max_stream_data.into()); | ||
| transport.receive_window(max_connection_data.into()); | ||
| let transport = Arc::new(transport); | ||
|
|
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| let mut server_config = quinn::ServerConfig::with_crypto(server_tls_config); | ||
| server_config.transport = Arc::clone(&transport); | ||
| // Disables connection migration. | ||
| // Long-term this should be enabled, however we then need to handle address change | ||
| // on connections in the `Connection`. | ||
| server_config.migration(false); | ||
|
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| let mut client_config = quinn::ClientConfig::new(client_tls_config); | ||
| client_config.transport_config(transport); | ||
|
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| let mut endpoint_config = quinn::EndpointConfig::default(); | ||
| if !support_draft_29 { | ||
| endpoint_config.supported_versions(vec![1]); | ||
| } | ||
|
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| QuinnConfig { | ||
| client_config, | ||
| server_config, | ||
| endpoint_config, | ||
| } | ||
| } | ||
| } |
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