rdp: lookup cert/key from .config by default

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>

Cargo.lock

@@ -1067,6 +1067,27 @@ dependencies = [
  "subtle",
 ]
 
+[[package]]
+name = "dirs"
+version = "5.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "44c45a9d03d6676652bcb5e724c7e988de1acad23a711b5217ab9cbecbec2225"
+dependencies = [
+ "dirs-sys",
+]
+
+[[package]]
+name = "dirs-sys"
+version = "0.4.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "520f05a5cbd335fae5a99ff7a6ab8627577660ee5cfd6a94a6a929b52ff0321c"
+dependencies = [
+ "libc",
+ "option-ext",
+ "redox_users",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "displaydoc"
 version = "0.2.5"
@@ -2660,6 +2681,16 @@ version = "0.2.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8355be11b20d696c8f18f6cc018c4e372165b1fa8126cef092399c9951984ffa"
 
+[[package]]
+name = "libredox"
+version = "0.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
+dependencies = [
+ "bitflags 2.6.0",
+ "libc",
+]
+
 [[package]]
 name = "libusb1-sys"
 version = "0.7.0"
@@ -2991,6 +3022,12 @@ version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c08d65885ee38876c4f86fa503fb49d7b507c2b62552df7c70b2fce627e06381"
 
+[[package]]
+name = "option-ext"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "04744f49eae99ab78e0d5c0b603ab218f515ea8cfe5a456d7629ad883a3b6e7d"
+
 [[package]]
 name = "option-operations"
 version = "0.5.0"
@@ -3512,6 +3549,7 @@ dependencies = [
  "async-trait",
  "bytes",
  "clap 4.5.20",
+ "dirs",
  "enumflags2",
  "futures-util",
  "ironrdp",
@@ -3701,6 +3739,17 @@ dependencies = [
  "bitflags 2.6.0",
 ]
 
+[[package]]
+name = "redox_users"
+version = "0.4.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba009ff324d1fc1b900bd1fdb31564febe58a8ccc8a6fdbb93b543d33b13ca43"
+dependencies = [
+ "getrandom",
+ "libredox",
+ "thiserror",
+]
+
 [[package]]
 name = "regex"
 version = "1.11.1"

qemu-display/src/display.rs

@@ -8,8 +8,9 @@ use zbus::{
     fdo,
     fdo::ManagedObjects,
     names::{BusName, OwnedUniqueName, UniqueName, WellKnownName},
+    proxy::OwnerChangedStream,
     zvariant::OwnedObjectPath,
-    Connection, proxy::OwnerChangedStream,
+    Connection,
 };
 
 #[cfg(unix)]

qemu-rdp/Cargo.toml

@@ -32,3 +32,4 @@ ironrdp = { git = "https://github.com/Devolutions/IronRDP", features = [
 futures-util = "0.3"
 zbus.workspace = true
 enumflags2 = "0.7.10"
+dirs = "5.0.1"

qemu-rdp/src/args.rs

@@ -21,7 +21,7 @@ pub struct Args {
 #[derive(Debug, Subcommand)]
 pub enum Commands {
     /// Start a RDP server
-    #[command(arg_required_else_help = true)]
+    #[command()]
     Serve(ServerArgs),
 }
 
@@ -34,11 +34,11 @@ pub struct ServerArgs {
 
     /// Path to tls certificate
     #[clap(short, long, value_parser)]
-    pub cert: PathBuf,
+    pub cert: Option<PathBuf>,
 
     /// Path to private key
     #[clap(short, long, value_parser)]
-    pub key: PathBuf,
+    pub key: Option<PathBuf>,
 
     /// RemoteFx encoding
     #[clap(value_enum, long, default_value = "enable")]

qemu-rdp/src/server/mod.rs

@@ -3,7 +3,9 @@ mod display;
 mod input;
 mod sound;
 
-use anyhow::Error;
+use std::path::PathBuf;
+
+use anyhow::{bail, Error};
 use enumflags2::BitFlags;
 use ironrdp::server::{Credentials, ServerEvent, TlsIdentityCtx};
 
@@ -35,6 +37,25 @@ impl Server {
     }
 
     pub async fn run(&mut self) -> Result<(), Error> {
+        let (cert, key) = match (&self.args.cert, &self.args.key) {
+            (Some(cert), Some(key)) => (cert.as_path().to_owned(), key.as_path().to_owned()),
+            (None, None) => {
+                let mut config_dir = dirs::config_dir().expect("configuration directory");
+                config_dir.push("qemu-rdp");
+                let cert: PathBuf = [config_dir.clone(), PathBuf::from("cert.der")]
+                    .iter()
+                    .collect();
+                let key: PathBuf = [config_dir, PathBuf::from("key.der")].iter().collect();
+                (cert, key)
+            }
+            _ => {
+                bail!("Provide both --cert and --key")
+            }
+        };
+
+        println!("Waiting for org.qemu...");
+        Display::lookup(&self.dbus, true, None).await?;
+
         let dbus_display = Display::new::<()>(&self.dbus, None).await?;
 
         let handler = InputHandler::connect(&dbus_display).await?;
@@ -48,8 +69,7 @@ impl Server {
             }
         };
 
-        let tls =
-            TlsIdentityCtx::init_from_paths(self.args.cert.as_path(), self.args.key.as_path())?;
+        let tls = TlsIdentityCtx::init_from_paths(&cert, &key)?;
         let mut server = RdpServer::builder()
             .with_addr(self.args.bind_addr)
             .with_hybrid(tls.make_acceptor()?, tls.pub_key)
@@ -80,7 +100,11 @@ impl Server {
             .request_name_with_flags("org.QemuDisplay", BitFlags::EMPTY)
             .await?;
 
-        server.run().await
+        println!("Starting RDP server, args: {:?}", self.args);
+        println!("Cert: {cert:?}, Key: {key:?}");
+        server.run().await?;
+        println!("RDP server ended");
+        Ok(())
     }
 }
 

qemu-rdw/src/main.rs

@@ -77,7 +77,7 @@ async fn display_from_opt(opt: Rc<RefCell<AppOptions>>) -> Option<Display<'stati
             .map(Into::into)
     } else {
         if opt.borrow().wait {
-            unimplemented!(); // FIXME
+            Display::lookup(&conn, true, None).await.unwrap();
         }
         BusName::try_from("org.qemu").ok()
     };