proxy: implement 'reload-certificate' command
to be used via the command socket Signed-off-by: Wolfgang Bumiller <w.bumiller@proxmox.com>
This commit is contained in:
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c381a162fb
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a723c08715
@ -1,5 +1,6 @@
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use std::sync::Arc;
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use std::path::{Path, PathBuf};
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use std::pin::Pin;
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use std::os::unix::io::AsRawFd;
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use anyhow::{bail, format_err, Error};
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@ -7,6 +8,7 @@ use futures::*;
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use openssl::ssl::{SslMethod, SslAcceptor, SslFiletype};
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use tokio_stream::wrappers::ReceiverStream;
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use serde_json::Value;
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use proxmox::try_block;
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use proxmox::api::RpcEnvironmentType;
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@ -119,13 +121,24 @@ async fn run() -> Result<(), Error> {
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// certificate!
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let acceptor = make_tls_acceptor()?;
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let acceptor = Arc::new(acceptor.build());
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// to renew the acceptor we just let a command-socket handler trigger a Notify:
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let notify_tls_cert_reload = Arc::new(tokio::sync::Notify::new());
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commando_sock.register_command(
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"reload-certificate".to_string(),
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{
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let notify_tls_cert_reload = Arc::clone(¬ify_tls_cert_reload);
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move |_value| -> Result<_, Error> {
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notify_tls_cert_reload.notify_one();
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Ok(Value::Null)
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}
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},
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)?;
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let server = daemon::create_daemon(
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([0,0,0,0,0,0,0,0], 8007).into(),
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|listener, ready| {
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move |listener, ready| {
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let connections = accept_connections(listener, acceptor, debug);
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let connections = accept_connections(listener, acceptor, debug, notify_tls_cert_reload);
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let connections = hyper::server::accept::from_stream(ReceiverStream::new(connections));
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Ok(ready
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@ -188,30 +201,61 @@ fn accept_connections(
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listener: tokio::net::TcpListener,
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acceptor: Arc<openssl::ssl::SslAcceptor>,
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debug: bool,
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notify_tls_cert_reload: Arc<tokio::sync::Notify>,
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) -> tokio::sync::mpsc::Receiver<ClientStreamResult> {
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let (sender, receiver) = tokio::sync::mpsc::channel(MAX_PENDING_ACCEPTS);
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tokio::spawn(accept_connection(listener, acceptor, debug, sender));
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tokio::spawn(accept_connection(listener, acceptor, debug, sender, notify_tls_cert_reload));
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receiver
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}
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async fn accept_connection(
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listener: tokio::net::TcpListener,
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acceptor: Arc<openssl::ssl::SslAcceptor>,
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mut acceptor: Arc<openssl::ssl::SslAcceptor>,
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debug: bool,
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sender: tokio::sync::mpsc::Sender<ClientStreamResult>,
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notify_tls_cert_reload: Arc<tokio::sync::Notify>,
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) {
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let accept_counter = Arc::new(());
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// Note that these must not be moved out/modified directly, they get pinned in the loop and
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// "rearmed" after waking up:
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let mut reload_tls = notify_tls_cert_reload.notified();
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let mut accept = listener.accept();
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loop {
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let (sock, _addr) = match listener.accept().await {
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Ok(conn) => conn,
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Err(err) => {
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eprintln!("error accepting tcp connection: {}", err);
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let sock;
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// normally we'd use `tokio::pin!()` but we need this to happen outside the loop and we
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// need to be able to "rearm" the futures:
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let reload_tls_pin = unsafe { Pin::new_unchecked(&mut reload_tls) };
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let accept_pin = unsafe { Pin::new_unchecked(&mut accept) };
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tokio::select! {
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_ = reload_tls_pin => {
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// rearm the notification:
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reload_tls = notify_tls_cert_reload.notified();
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log::info!("reloading certificate");
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match make_tls_acceptor() {
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Err(err) => eprintln!("error reloading certificate: {}", err),
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Ok(new_acceptor) => acceptor = new_acceptor,
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}
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continue;
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}
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res = accept_pin => match res {
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Err(err) => {
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eprintln!("error accepting tcp connection: {}", err);
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continue;
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}
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Ok((new_sock, _addr)) => {
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// rearm the accept future:
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accept = listener.accept();
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sock = new_sock;
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}
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}
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};
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sock.set_nodelay(true).unwrap();
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