Extract DNS logic from hyperjive
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commit
2241a178fb
2
.gitignore
vendored
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2
.gitignore
vendored
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/target
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/Cargo.lock
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17
Cargo.toml
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17
Cargo.toml
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[package]
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name = "jive-dns"
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version = "0.1.0"
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edition = "2021"
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
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[dependencies]
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async-trait = { version = "0.1.52" }
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futures-io = "0.3.21"
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jive = { git = "https://git.asonix.dog/safe-async/jive", features = [
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"futures-io-compat",
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] }
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trust-dns-proto = { version = "0.21.0", default-features = false }
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trust-dns-resolver = { version = "0.21.1", default-features = false, features = [
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"system-config",
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] }
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167
src/lib.rs
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src/lib.rs
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use futures_io::{AsyncRead, AsyncWrite};
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use std::{
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future::Future,
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pin::Pin,
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task::{Context, Poll},
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};
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use trust_dns_resolver::config::{ResolverConfig, ResolverOpts};
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pub fn resolver(
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config: ResolverConfig,
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options: ResolverOpts,
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) -> Result<JiveResolver, trust_dns_resolver::error::ResolveError> {
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JiveResolver::new(config, options, JiveRuntimeHandle)
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}
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pub fn resolver_from_system_conf() -> Result<JiveResolver, trust_dns_resolver::error::ResolveError>
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{
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JiveResolver::from_system_conf(JiveRuntimeHandle)
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}
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#[derive(Clone)]
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pub struct JiveRuntime;
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pub struct JiveTcpStream {
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pub(crate) io: jive::io::Async<jive::net::TcpStream>,
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}
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pub struct JiveUdpSocket {
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io: jive::io::Async<jive::net::UdpSocket>,
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}
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pub type JiveResolver = trust_dns_resolver::AsyncResolver<JiveConnection, JiveConnectionProvider>;
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pub type JiveConnection = trust_dns_resolver::name_server::GenericConnection;
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pub type JiveConnectionProvider =
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trust_dns_resolver::name_server::GenericConnectionProvider<JiveRuntime>;
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#[derive(Clone, Copy)]
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pub struct JiveRuntimeHandle;
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pub struct JiveTimer;
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impl JiveTcpStream {
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pub fn into_inner(self) -> jive::io::Async<jive::net::TcpStream> {
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self.io
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}
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pub fn from_inner(io: jive::io::Async<jive::net::TcpStream>) -> Self {
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JiveTcpStream { io }
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}
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}
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impl trust_dns_resolver::name_server::RuntimeProvider for JiveRuntime {
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type Handle = JiveRuntimeHandle;
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type Tcp = JiveTcpStream;
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type Timer = JiveTimer;
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type Udp = JiveUdpSocket;
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}
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impl trust_dns_resolver::name_server::Spawn for JiveRuntimeHandle {
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fn spawn_bg<F>(&mut self, future: F)
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where
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F: Future<Output = Result<(), trust_dns_proto::error::ProtoError>> + Send + 'static,
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{
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let _join = jive::spawn(future);
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}
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}
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#[async_trait::async_trait]
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impl trust_dns_proto::tcp::Connect for JiveTcpStream {
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async fn connect_with_bind(
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addr: std::net::SocketAddr,
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bind_addr: Option<std::net::SocketAddr>,
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) -> std::io::Result<Self> {
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if let Some(_bind_addr) = bind_addr {
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todo!("Implement connect with bind");
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} else {
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let io = jive::io::Async::<jive::net::TcpStream>::connect(addr).await?;
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Ok(JiveTcpStream { io })
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}
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}
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}
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impl trust_dns_proto::tcp::DnsTcpStream for JiveTcpStream {
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type Time = JiveTimer;
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}
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impl AsyncRead for JiveTcpStream {
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fn poll_read(
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self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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buf: &mut [u8],
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) -> Poll<std::io::Result<usize>> {
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Pin::new(&mut self.get_mut().io).poll_read(cx, buf)
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}
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}
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impl AsyncWrite for JiveTcpStream {
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fn poll_write(
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self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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buf: &[u8],
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) -> Poll<std::io::Result<usize>> {
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Pin::new(&mut self.get_mut().io).poll_write(cx, buf)
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}
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fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<std::io::Result<()>> {
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Pin::new(&mut self.get_mut().io).poll_flush(cx)
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}
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fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<std::io::Result<()>> {
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Pin::new(&mut self.get_mut().io).poll_close(cx)
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}
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}
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#[async_trait::async_trait]
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impl trust_dns_proto::udp::UdpSocket for JiveUdpSocket {
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type Time = JiveTimer;
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async fn bind(addr: std::net::SocketAddr) -> std::io::Result<Self> {
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let io = jive::io::Async::<jive::net::UdpSocket>::bind(addr).await?;
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Ok(JiveUdpSocket { io })
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}
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fn poll_send_to(
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&self,
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cx: &mut Context<'_>,
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buf: &[u8],
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target: std::net::SocketAddr,
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) -> Poll<std::io::Result<usize>> {
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self.io.poll_send_to(cx, buf, target)
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}
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fn poll_recv_from(
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&self,
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cx: &mut Context<'_>,
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buf: &mut [u8],
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) -> Poll<std::io::Result<(usize, std::net::SocketAddr)>> {
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self.io.poll_recv_from(cx, buf)
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}
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}
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#[async_trait::async_trait]
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impl trust_dns_proto::Time for JiveTimer {
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async fn delay_for(duration: std::time::Duration) {
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jive::time::sleep(duration).await
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}
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async fn timeout<F: 'static + Future + Send>(
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duration: std::time::Duration,
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future: F,
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) -> Result<F::Output, std::io::Error> {
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jive::time::timeout(duration, Box::pin(future)).await
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}
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}
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impl trust_dns_proto::Executor for JiveRuntime {
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fn new() -> Self {
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Self
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}
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fn block_on<F: Future>(&mut self, future: F) -> F::Output {
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jive::block_on(future)
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}
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}
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