| <!DOCTYPE html><html lang="en"><head><meta charset="utf-8"><meta name="viewport" content="width=device-width, initial-scale=1.0"><meta name="generator" content="rustdoc"><meta name="description" content="Source of the Rust file `/root/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-rustls-0.22.0/src/lib.rs`."><meta name="keywords" content="rust, rustlang, rust-lang"><title>lib.rs - source</title><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Regular.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../FiraSans-Medium.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Regular.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceSerif4-Bold.ttf.woff2"><link rel="preload" as="font" type="font/woff2" crossorigin href="../../SourceCodePro-Semibold.ttf.woff2"><link rel="stylesheet" href="../../normalize.css"><link rel="stylesheet" href="../../rustdoc.css" id="mainThemeStyle"><link rel="stylesheet" href="../../ayu.css" disabled><link rel="stylesheet" href="../../dark.css" disabled><link rel="stylesheet" href="../../light.css" id="themeStyle"><script id="default-settings" ></script><script src="../../storage.js"></script><script defer src="../../source-script.js"></script><script defer src="../../source-files.js"></script><script defer src="../../main.js"></script><noscript><link rel="stylesheet" href="../../noscript.css"></noscript><link rel="alternate icon" type="image/png" href="../../favicon-16x16.png"><link rel="alternate icon" type="image/png" href="../../favicon-32x32.png"><link rel="icon" type="image/svg+xml" href="../../favicon.svg"></head><body class="rustdoc source"><!--[if lte IE 11]><div class="warning">This old browser is unsupported and will most likely display funky things.</div><![endif]--><nav class="sidebar"><a class="sidebar-logo" href="../../tokio_rustls/index.html"><div class="logo-container"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></div></a></nav><main><div class="width-limiter"><nav class="sub"><a class="sub-logo-container" href="../../tokio_rustls/index.html"><img class="rust-logo" src="../../rust-logo.svg" alt="logo"></a><form class="search-form"><div class="search-container"><span></span><input class="search-input" name="search" autocomplete="off" spellcheck="false" placeholder="Click or press ‘S’ to search, ‘?’ for more options…" type="search"><div id="help-button" title="help" tabindex="-1"><a href="../../help.html">?</a></div><div id="settings-menu" tabindex="-1"><a href="../../settings.html" title="settings"><img width="22" height="22" alt="Change settings" src="../../wheel.svg"></a></div></div></form></nav><section id="main-content" class="content"><div class="example-wrap"><pre class="src-line-numbers"><span id="1">1</span> |
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| </pre><pre class="rust"><code><span class="doccomment">//! Asynchronous TLS/SSL streams for Tokio using [Rustls](https://github.com/ctz/rustls). |
| |
| </span><span class="macro">macro_rules! </span>ready { |
| ( <span class="macro-nonterminal">$e</span>:expr ) => { |
| <span class="kw">match </span><span class="macro-nonterminal">$e </span>{ |
| std::task::Poll::Ready(t) => t, |
| std::task::Poll::Pending => <span class="kw">return </span>std::task::Poll::Pending, |
| } |
| }; |
| } |
| |
| <span class="kw">pub mod </span>client; |
| <span class="kw">mod </span>common; |
| <span class="kw">pub mod </span>server; |
| |
| <span class="kw">use </span>common::{MidHandshake, Stream, TlsState}; |
| <span class="kw">use </span>rustls::{ClientConfig, ClientSession, ServerConfig, ServerSession, Session}; |
| <span class="kw">use </span>std::future::Future; |
| <span class="kw">use </span>std::io; |
| <span class="kw">use </span>std::pin::Pin; |
| <span class="kw">use </span>std::sync::Arc; |
| <span class="kw">use </span>std::task::{Context, Poll}; |
| <span class="kw">use </span>tokio::io::{AsyncRead, AsyncWrite, ReadBuf}; |
| <span class="kw">use </span>webpki::DNSNameRef; |
| |
| <span class="kw">pub use </span>rustls; |
| <span class="kw">pub use </span>webpki; |
| |
| <span class="doccomment">/// A wrapper around a `rustls::ClientConfig`, providing an async `connect` method. |
| </span><span class="attribute">#[derive(Clone)] |
| </span><span class="kw">pub struct </span>TlsConnector { |
| inner: Arc<ClientConfig>, |
| <span class="attribute">#[cfg(feature = <span class="string">"early-data"</span>)] |
| </span>early_data: bool, |
| } |
| |
| <span class="doccomment">/// A wrapper around a `rustls::ServerConfig`, providing an async `accept` method. |
| </span><span class="attribute">#[derive(Clone)] |
| </span><span class="kw">pub struct </span>TlsAcceptor { |
| inner: Arc<ServerConfig>, |
| } |
| |
| <span class="kw">impl </span>From<Arc<ClientConfig>> <span class="kw">for </span>TlsConnector { |
| <span class="kw">fn </span>from(inner: Arc<ClientConfig>) -> TlsConnector { |
| TlsConnector { |
| inner, |
| <span class="attribute">#[cfg(feature = <span class="string">"early-data"</span>)] |
| </span>early_data: <span class="bool-val">false</span>, |
| } |
| } |
| } |
| |
| <span class="kw">impl </span>From<Arc<ServerConfig>> <span class="kw">for </span>TlsAcceptor { |
| <span class="kw">fn </span>from(inner: Arc<ServerConfig>) -> TlsAcceptor { |
| TlsAcceptor { inner } |
| } |
| } |
| |
| <span class="kw">impl </span>TlsConnector { |
| <span class="doccomment">/// Enable 0-RTT. |
| /// |
| /// If you want to use 0-RTT, |
| /// You must also set `ClientConfig.enable_early_data` to `true`. |
| </span><span class="attribute">#[cfg(feature = <span class="string">"early-data"</span>)] |
| </span><span class="kw">pub fn </span>early_data(<span class="kw-2">mut </span><span class="self">self</span>, flag: bool) -> TlsConnector { |
| <span class="self">self</span>.early_data = flag; |
| <span class="self">self |
| </span>} |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>connect<IO>(<span class="kw-2">&</span><span class="self">self</span>, domain: DNSNameRef, stream: IO) -> Connect<IO> |
| <span class="kw">where |
| </span>IO: AsyncRead + AsyncWrite + Unpin, |
| { |
| <span class="self">self</span>.connect_with(domain, stream, |<span class="kw">_</span>| ()) |
| } |
| |
| <span class="kw">pub fn </span>connect_with<IO, F>(<span class="kw-2">&</span><span class="self">self</span>, domain: DNSNameRef, stream: IO, f: F) -> Connect<IO> |
| <span class="kw">where |
| </span>IO: AsyncRead + AsyncWrite + Unpin, |
| F: FnOnce(<span class="kw-2">&mut </span>ClientSession), |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>session = ClientSession::new(<span class="kw-2">&</span><span class="self">self</span>.inner, domain); |
| f(<span class="kw-2">&mut </span>session); |
| |
| Connect(MidHandshake::Handshaking(client::TlsStream { |
| io: stream, |
| |
| <span class="attribute">#[cfg(not(feature = <span class="string">"early-data"</span>))] |
| </span>state: TlsState::Stream, |
| |
| <span class="attribute">#[cfg(feature = <span class="string">"early-data"</span>)] |
| </span>state: <span class="kw">if </span><span class="self">self</span>.early_data && session.early_data().is_some() { |
| TlsState::EarlyData(<span class="number">0</span>, Vec::new()) |
| } <span class="kw">else </span>{ |
| TlsState::Stream |
| }, |
| |
| session, |
| })) |
| } |
| } |
| |
| <span class="kw">impl </span>TlsAcceptor { |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>accept<IO>(<span class="kw-2">&</span><span class="self">self</span>, stream: IO) -> Accept<IO> |
| <span class="kw">where |
| </span>IO: AsyncRead + AsyncWrite + Unpin, |
| { |
| <span class="self">self</span>.accept_with(stream, |<span class="kw">_</span>| ()) |
| } |
| |
| <span class="kw">pub fn </span>accept_with<IO, F>(<span class="kw-2">&</span><span class="self">self</span>, stream: IO, f: F) -> Accept<IO> |
| <span class="kw">where |
| </span>IO: AsyncRead + AsyncWrite + Unpin, |
| F: FnOnce(<span class="kw-2">&mut </span>ServerSession), |
| { |
| <span class="kw">let </span><span class="kw-2">mut </span>session = ServerSession::new(<span class="kw-2">&</span><span class="self">self</span>.inner); |
| f(<span class="kw-2">&mut </span>session); |
| |
| Accept(MidHandshake::Handshaking(server::TlsStream { |
| session, |
| io: stream, |
| state: TlsState::Stream, |
| })) |
| } |
| } |
| |
| <span class="doccomment">/// Future returned from `TlsConnector::connect` which will resolve |
| /// once the connection handshake has finished. |
| </span><span class="kw">pub struct </span>Connect<IO>(MidHandshake<client::TlsStream<IO>>); |
| |
| <span class="doccomment">/// Future returned from `TlsAcceptor::accept` which will resolve |
| /// once the accept handshake has finished. |
| </span><span class="kw">pub struct </span>Accept<IO>(MidHandshake<server::TlsStream<IO>>); |
| |
| <span class="doccomment">/// Like [Connect], but returns `IO` on failure. |
| </span><span class="kw">pub struct </span>FailableConnect<IO>(MidHandshake<client::TlsStream<IO>>); |
| |
| <span class="doccomment">/// Like [Accept], but returns `IO` on failure. |
| </span><span class="kw">pub struct </span>FailableAccept<IO>(MidHandshake<server::TlsStream<IO>>); |
| |
| <span class="kw">impl</span><IO> Connect<IO> { |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>into_failable(<span class="self">self</span>) -> FailableConnect<IO> { |
| FailableConnect(<span class="self">self</span>.<span class="number">0</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><IO> Accept<IO> { |
| <span class="attribute">#[inline] |
| </span><span class="kw">pub fn </span>into_failable(<span class="self">self</span>) -> FailableAccept<IO> { |
| FailableAccept(<span class="self">self</span>.<span class="number">0</span>) |
| } |
| } |
| |
| <span class="kw">impl</span><IO: AsyncRead + AsyncWrite + Unpin> Future <span class="kw">for </span>Connect<IO> { |
| <span class="kw">type </span>Output = io::Result<client::TlsStream<IO>>; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>poll(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<<span class="self">Self</span>::Output> { |
| Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.<span class="number">0</span>).poll(cx).map_err(|(err, <span class="kw">_</span>)| err) |
| } |
| } |
| |
| <span class="kw">impl</span><IO: AsyncRead + AsyncWrite + Unpin> Future <span class="kw">for </span>Accept<IO> { |
| <span class="kw">type </span>Output = io::Result<server::TlsStream<IO>>; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>poll(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<<span class="self">Self</span>::Output> { |
| Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.<span class="number">0</span>).poll(cx).map_err(|(err, <span class="kw">_</span>)| err) |
| } |
| } |
| |
| <span class="kw">impl</span><IO: AsyncRead + AsyncWrite + Unpin> Future <span class="kw">for </span>FailableConnect<IO> { |
| <span class="kw">type </span>Output = <span class="prelude-ty">Result</span><client::TlsStream<IO>, (io::Error, IO)>; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>poll(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<<span class="self">Self</span>::Output> { |
| Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.<span class="number">0</span>).poll(cx) |
| } |
| } |
| |
| <span class="kw">impl</span><IO: AsyncRead + AsyncWrite + Unpin> Future <span class="kw">for </span>FailableAccept<IO> { |
| <span class="kw">type </span>Output = <span class="prelude-ty">Result</span><server::TlsStream<IO>, (io::Error, IO)>; |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>poll(<span class="kw-2">mut </span><span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<<span class="self">Self</span>::Output> { |
| Pin::new(<span class="kw-2">&mut </span><span class="self">self</span>.<span class="number">0</span>).poll(cx) |
| } |
| } |
| |
| <span class="doccomment">/// Unified TLS stream type |
| /// |
| /// This abstracts over the inner `client::TlsStream` and `server::TlsStream`, so you can use |
| /// a single type to keep both client- and server-initiated TLS-encrypted connections. |
| </span><span class="attribute">#[derive(Debug)] |
| </span><span class="kw">pub enum </span>TlsStream<T> { |
| Client(client::TlsStream<T>), |
| Server(server::TlsStream<T>), |
| } |
| |
| <span class="kw">impl</span><T> TlsStream<T> { |
| <span class="kw">pub fn </span>get_ref(<span class="kw-2">&</span><span class="self">self</span>) -> (<span class="kw-2">&</span>T, <span class="kw-2">&</span><span class="kw">dyn </span>Session) { |
| <span class="kw">use </span>TlsStream::<span class="kw-2">*</span>; |
| <span class="kw">match </span><span class="self">self </span>{ |
| Client(io) => { |
| <span class="kw">let </span>(io, session) = io.get_ref(); |
| (io, <span class="kw-2">&*</span>session) |
| } |
| Server(io) => { |
| <span class="kw">let </span>(io, session) = io.get_ref(); |
| (io, <span class="kw-2">&*</span>session) |
| } |
| } |
| } |
| |
| <span class="kw">pub fn </span>get_mut(<span class="kw-2">&mut </span><span class="self">self</span>) -> (<span class="kw-2">&mut </span>T, <span class="kw-2">&mut </span><span class="kw">dyn </span>Session) { |
| <span class="kw">use </span>TlsStream::<span class="kw-2">*</span>; |
| <span class="kw">match </span><span class="self">self </span>{ |
| Client(io) => { |
| <span class="kw">let </span>(io, session) = io.get_mut(); |
| (io, <span class="kw-2">&mut *</span>session) |
| } |
| Server(io) => { |
| <span class="kw">let </span>(io, session) = io.get_mut(); |
| (io, <span class="kw-2">&mut *</span>session) |
| } |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><T> From<client::TlsStream<T>> <span class="kw">for </span>TlsStream<T> { |
| <span class="kw">fn </span>from(s: client::TlsStream<T>) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::Client(s) |
| } |
| } |
| |
| <span class="kw">impl</span><T> From<server::TlsStream<T>> <span class="kw">for </span>TlsStream<T> { |
| <span class="kw">fn </span>from(s: server::TlsStream<T>) -> <span class="self">Self </span>{ |
| <span class="self">Self</span>::Server(s) |
| } |
| } |
| |
| <span class="kw">impl</span><T> AsyncRead <span class="kw">for </span>TlsStream<T> |
| <span class="kw">where |
| </span>T: AsyncRead + AsyncWrite + Unpin, |
| { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>poll_read( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>, |
| buf: <span class="kw-2">&mut </span>ReadBuf<<span class="lifetime">'_</span>>, |
| ) -> Poll<io::Result<()>> { |
| <span class="kw">match </span><span class="self">self</span>.get_mut() { |
| TlsStream::Client(x) => Pin::new(x).poll_read(cx, buf), |
| TlsStream::Server(x) => Pin::new(x).poll_read(cx, buf), |
| } |
| } |
| } |
| |
| <span class="kw">impl</span><T> AsyncWrite <span class="kw">for </span>TlsStream<T> |
| <span class="kw">where |
| </span>T: AsyncRead + AsyncWrite + Unpin, |
| { |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>poll_write( |
| <span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, |
| cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>, |
| buf: <span class="kw-2">&</span>[u8], |
| ) -> Poll<io::Result<usize>> { |
| <span class="kw">match </span><span class="self">self</span>.get_mut() { |
| TlsStream::Client(x) => Pin::new(x).poll_write(cx, buf), |
| TlsStream::Server(x) => Pin::new(x).poll_write(cx, buf), |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>poll_flush(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<io::Result<()>> { |
| <span class="kw">match </span><span class="self">self</span>.get_mut() { |
| TlsStream::Client(x) => Pin::new(x).poll_flush(cx), |
| TlsStream::Server(x) => Pin::new(x).poll_flush(cx), |
| } |
| } |
| |
| <span class="attribute">#[inline] |
| </span><span class="kw">fn </span>poll_shutdown(<span class="self">self</span>: Pin<<span class="kw-2">&mut </span><span class="self">Self</span>>, cx: <span class="kw-2">&mut </span>Context<<span class="lifetime">'_</span>>) -> Poll<io::Result<()>> { |
| <span class="kw">match </span><span class="self">self</span>.get_mut() { |
| TlsStream::Client(x) => Pin::new(x).poll_shutdown(cx), |
| TlsStream::Server(x) => Pin::new(x).poll_shutdown(cx), |
| } |
| } |
| } |
| </code></pre></div> |
| </section></div></main><div id="rustdoc-vars" data-root-path="../../" data-current-crate="tokio_rustls" data-themes="ayu,dark,light" data-resource-suffix="" data-rustdoc-version="1.66.0-nightly (5c8bff74b 2022-10-21)" ></div></body></html> |
