465 lines
16 KiB
Rust
465 lines
16 KiB
Rust
use super::*;
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#[test]
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fn successful_open_handshake() {
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let config = default_test_config(SocketAddr::from(([127, 0, 0, 1], 1)));
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let params = params_from_config(&config).unwrap();
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let server = open_success_server(params.clone());
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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let negotiated = assert_open_started(client.open().unwrap());
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assert_eq!(negotiated.params, params);
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assert!(client.schedule.is_some());
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assert_eq!(client.applied_dscp, Some(0));
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server.join();
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}
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#[test]
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fn successful_open_restores_configured_receive_timeout() {
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let config = default_test_config(SocketAddr::from(([127, 0, 0, 1], 1)));
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let params = params_from_config(&config).unwrap();
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let server = open_success_server(params);
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let mut config = default_test_config(server.addr);
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config.socket_config.recv_timeout = Some(Duration::from_millis(75));
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let mut client = Client::connect(config).unwrap();
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assert_open_started(client.open().unwrap());
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assert_eq!(
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client.test_hooks.last_restored_read_timeout.get(),
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Some(Duration::from_millis(75))
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);
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assert_eq!(
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client.socket.read_timeout().unwrap(),
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Some(Duration::from_millis(75))
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);
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server.join();
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}
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#[test]
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fn open_fails_when_already_open() {
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let config = default_test_config(SocketAddr::from(([127, 0, 0, 1], 1)));
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let params = params_from_config(&config).unwrap();
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let server = open_success_server(params);
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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assert_open_started(client.open().unwrap());
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assert!(matches!(client.open(), Err(ClientError::AlreadyOpen)));
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server.join();
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}
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#[test]
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fn open_retries_after_first_timeout() {
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let server = start_fake_server(|socket, tx| {
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let (first, _) = recv_request(&socket, &tx);
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let (_, peer) = recv_request(&socket, &tx);
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let params = Params::decode(&first[4..]).unwrap();
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let reply = open_reply(FLAG_OPEN | FLAG_REPLY, TOKEN, ¶ms, None);
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assert_eq!(first[3] & FLAG_OPEN, FLAG_OPEN);
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socket.send_to(&reply, peer).unwrap();
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});
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let config = ClientConfig {
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open_timeouts: vec![Duration::from_millis(200), Duration::from_millis(500)],
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..default_test_config(server.addr)
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};
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let mut client = Client::connect(config).unwrap();
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let outcome = client.open().unwrap();
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assert_open_started(outcome);
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assert_eq!(server.rx.iter().take(2).count(), 2);
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server.join();
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}
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#[test]
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fn open_timeout_after_all_timeouts() {
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let server = timeout_server(Duration::from_millis(700));
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let config = ClientConfig {
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open_timeouts: vec![Duration::from_millis(200), Duration::from_millis(200)],
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socket_config: crate::SocketConfig {
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recv_timeout: Some(Duration::from_millis(50)),
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..Default::default()
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},
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..default_test_config(server.addr)
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};
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let mut client = Client::connect(config).unwrap();
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assert!(matches!(client.open(), Err(ClientError::OpenTimeout)));
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assert_eq!(server.rx.iter().take(2).count(), 2);
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assert_eq!(
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client.test_hooks.last_restored_read_timeout.get(),
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Some(Duration::from_millis(50))
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);
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server.join();
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}
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#[test]
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fn protocol_version_mismatch_fails() {
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let mut config = default_test_config(SocketAddr::from(([127, 0, 0, 1], 1)));
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config.negotiation_policy = NegotiationPolicy::Loose;
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let mut params = params_from_config(&config).unwrap();
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params.protocol_version = 2;
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let server = open_success_server(params);
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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assert!(matches!(
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client.open(),
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Err(ClientError::ProtocolVersionMismatch { received: 2, .. })
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));
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assert_eq!(server.rx.iter().take(1).count(), 1);
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assert!(client.runtime.prepare_open_request().is_ok());
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server.join();
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}
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#[test]
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fn server_rejection_fails_in_normal_mode() {
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let config = default_test_config(SocketAddr::from(([127, 0, 0, 1], 1)));
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let params = params_from_config(&config).unwrap();
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let server = start_fake_server(move |socket, tx| {
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let (_, peer) = recv_request(&socket, &tx);
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let reply = open_reply(FLAG_OPEN | FLAG_REPLY | flags::FLAG_CLOSE, 0, ¶ms, None);
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socket.send_to(&reply, peer).unwrap();
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});
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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assert!(matches!(client.open(), Err(ClientError::ServerRejected)));
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assert_eq!(server.rx.iter().take(1).count(), 1);
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assert!(client.runtime.prepare_open_request().is_ok());
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server.join();
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}
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#[test]
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fn multiple_untrusted_datagrams_before_valid_reply_use_one_attempt() {
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let params = default_params();
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let server = start_fake_server(move |socket, tx| {
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let (_, peer) = recv_request(&socket, &tx);
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let valid = open_reply(FLAG_OPEN | FLAG_REPLY, TOKEN, ¶ms, None);
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let mut wrong_type = valid.clone();
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wrong_type[3] = FLAG_REPLY;
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let mut reserved_flags = valid.clone();
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reserved_flags[3] |= 0x10;
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let mut bad_magic = valid.clone();
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bad_magic[0] ^= 0xff;
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let unexpected_hmac =
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open_reply(FLAG_OPEN | FLAG_REPLY, TOKEN, ¶ms, Some(b"unexpected"));
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for packet in [
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vec![0_u8],
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bad_magic,
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wrong_type,
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reserved_flags,
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unexpected_hmac,
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valid,
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] {
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socket.send_to(&packet, peer).unwrap();
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}
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});
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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assert_open_started(client.open().unwrap());
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assert_eq!(server.rx.iter().take(1).count(), 1);
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assert!(server.rx.try_recv().is_err());
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assert!(client.schedule.is_some());
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server.join();
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}
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#[test]
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fn ignored_datagrams_do_not_restart_the_attempt_deadline() {
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let server = start_fake_server(move |socket, tx| {
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let (_, peer) = recv_request(&socket, &tx);
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thread::sleep(Duration::from_millis(150));
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socket.send_to(&[0_u8], peer).unwrap();
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thread::sleep(Duration::from_millis(150));
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socket.send_to(&[0_u8], peer).unwrap();
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let _ = recv_request(&socket, &tx);
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});
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let config = ClientConfig {
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open_timeouts: vec![Duration::from_millis(250), Duration::from_millis(250)],
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..default_test_config(server.addr)
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};
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let mut client = Client::connect(config).unwrap();
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let started = Instant::now();
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assert!(matches!(client.open(), Err(ClientError::OpenTimeout)));
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let requests: Vec<_> = server.rx.iter().take(2).collect();
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assert_eq!(requests.len(), 2);
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assert!(
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started.elapsed() < Duration::from_millis(700),
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"ignored datagrams restarted an attempt deadline"
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);
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server.join();
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}
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#[test]
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fn only_ignored_open_datagrams_eventually_time_out() {
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let server = start_fake_server(move |socket, tx| {
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for _ in 0..2 {
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let (_, peer) = recv_request(&socket, &tx);
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socket.send_to(&[0_u8], peer).unwrap();
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socket.send_to(&MAGIC, peer).unwrap();
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}
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thread::sleep(Duration::from_millis(300));
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});
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let config = ClientConfig {
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open_timeouts: vec![Duration::from_millis(200), Duration::from_millis(200)],
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socket_config: crate::SocketConfig {
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recv_timeout: Some(Duration::from_millis(50)),
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..Default::default()
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},
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..default_test_config(server.addr)
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};
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let mut client = Client::connect(config).unwrap();
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assert!(matches!(client.open(), Err(ClientError::OpenTimeout)));
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assert_eq!(server.rx.iter().take(2).count(), 2);
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assert!(server.rx.try_recv().is_err());
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assert_eq!(
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client.test_hooks.last_restored_read_timeout.get(),
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Some(Duration::from_millis(50))
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);
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server.join();
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}
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#[test]
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fn trusted_zero_token_normal_reply_is_terminal() {
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let params = default_params();
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let server = start_fake_server(move |socket, tx| {
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let (_, peer) = recv_request(&socket, &tx);
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socket
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.send_to(&open_reply(FLAG_OPEN | FLAG_REPLY, 0, ¶ms, None), peer)
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.unwrap();
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});
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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assert!(matches!(
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client.open(),
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Err(ClientError::Protocol(irtt_proto::ProtoError::ZeroToken))
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));
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assert_eq!(server.rx.iter().take(1).count(), 1);
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assert!(client.runtime.prepare_open_request().is_ok());
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assert!(client.schedule.is_none());
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server.join();
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}
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#[test]
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fn opening_deadline_overflow_occurs_before_send() {
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let server = timeout_server(Duration::from_millis(250));
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let config = ClientConfig {
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open_timeouts: vec![Duration::MAX],
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..default_test_config(server.addr)
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};
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let mut client = Client::connect(config).unwrap();
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assert!(matches!(client.open(), Err(ClientError::DurationOverflow)));
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assert!(server.rx.try_recv().is_err());
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server.join();
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}
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#[test]
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fn schedule_duration_overflow_cannot_partially_open() {
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let server = start_fake_server(|_socket, _tx| {});
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let client = Client::connect(default_test_config(server.addr)).unwrap();
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let reply = irtt_proto::OpenReply {
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flags: FLAG_OPEN | FLAG_REPLY,
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token: TOKEN,
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params: params_from_config(client.runtime.config()).unwrap(),
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};
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let mut latest = Instant::now();
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let mut step = Duration::MAX;
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while !step.is_zero() {
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if let Some(candidate) = latest.checked_add(step) {
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latest = candidate;
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}
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step /= 2;
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}
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let opened_at = ClientTimestamp {
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mono: latest,
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wall: SystemTime::now(),
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};
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let machine = client
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.runtime
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.prepare_open_acceptance(reply, opened_at)
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.unwrap();
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let previous_recv_len = client.recv_buffer.len();
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let failure = client.prepare_client_open(machine, opened_at).unwrap_err();
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assert!(matches!(
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failure.primary,
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ClientError::NegotiationRejected { .. }
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));
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assert!(failure.machine.cleanup_close_packet().is_some());
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assert!(client.runtime.prepare_open_request().is_ok());
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assert!(client.schedule.is_none());
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assert_eq!(client.applied_dscp, None);
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assert_eq!(client.recv_buffer.len(), previous_recv_len);
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server.join();
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}
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#[test]
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fn post_token_negotiation_failure_sends_cleanup_close() {
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let mut returned = default_params();
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returned.interval_ns += 1;
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let server = start_fake_server(move |socket, tx| {
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let (_, peer) = recv_request(&socket, &tx);
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socket
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.send_to(
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&open_reply(FLAG_OPEN | FLAG_REPLY, TOKEN, &returned, None),
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peer,
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)
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.unwrap();
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let _ = recv_request(&socket, &tx);
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});
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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assert!(matches!(
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client.open(),
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Err(ClientError::NegotiationRejected { .. })
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));
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let packets: Vec<_> = server.rx.iter().take(2).collect();
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assert_eq!(packets[1][3], flags::FLAG_CLOSE);
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assert_eq!(
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u64::from_le_bytes(packets[1][4..12].try_into().unwrap()),
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TOKEN
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);
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assert!(client.runtime.prepare_open_request().is_ok());
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server.join();
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}
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#[test]
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fn cleanup_send_failure_does_not_replace_primary_open_error() {
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let mut returned = default_params();
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returned.interval_ns += 1;
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let server = start_fake_server(move |socket, tx| {
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let (_, peer) = recv_request(&socket, &tx);
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socket
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.send_to(
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&open_reply(FLAG_OPEN | FLAG_REPLY, TOKEN, &returned, None),
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peer,
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)
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.unwrap();
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});
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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client.test_hooks.fail_cleanup_send.set(true);
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assert!(matches!(
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client.open(),
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Err(ClientError::NegotiationRejected { .. })
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));
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assert!(client.runtime.prepare_open_request().is_ok());
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server.join();
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}
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#[test]
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fn receive_buffer_reservation_failure_precedes_dscp_application() {
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let mut returned = default_params();
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returned.dscp = 46;
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let server = start_fake_server(move |socket, tx| {
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let (_, peer) = recv_request(&socket, &tx);
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socket
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.send_to(
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&open_reply(FLAG_OPEN | FLAG_REPLY, TOKEN, &returned, None),
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peer,
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)
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.unwrap();
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let _ = recv_request(&socket, &tx);
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});
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let mut config = default_test_config(server.addr);
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config.dscp = 46;
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let mut client = Client::connect(config).unwrap();
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client
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.test_hooks
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.recv_buffer_len_override
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.set(Some(usize::MAX));
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client.test_hooks.fail_open_dscp.set(true);
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assert!(matches!(
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client.open(),
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Err(ClientError::AllocationFailed {
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operation: "negotiated receive buffer",
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..
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})
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));
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assert!(client.test_hooks.fail_open_dscp.get());
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assert!(client.runtime.prepare_open_request().is_ok());
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assert!(client.schedule.is_none());
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assert_eq!(client.applied_dscp, None);
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server.join();
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}
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#[test]
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fn dscp_application_failure_leaves_machine_connected() {
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let params = default_params();
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let server = start_fake_server(move |socket, tx| {
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let (_, peer) = recv_request(&socket, &tx);
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socket
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.send_to(
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&open_reply(FLAG_OPEN | FLAG_REPLY, TOKEN, ¶ms, None),
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peer,
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)
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.unwrap();
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let _ = recv_request(&socket, &tx);
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});
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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client.test_hooks.fail_open_dscp.set(true);
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assert!(matches!(
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client.open(),
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Err(ClientError::SocketOption {
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operation: "set negotiated DSCP",
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..
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})
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));
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assert!(client.test_hooks.prepared_active_session_before_dscp.get());
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assert!(client.runtime.prepare_open_request().is_ok());
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assert!(client.schedule.is_none());
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assert_eq!(client.applied_dscp, None);
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server.join();
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}
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#[test]
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fn read_timeout_restoration_failure_leaves_machine_connected() {
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let params = default_params();
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let server = start_fake_server(move |socket, tx| {
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let (_, peer) = recv_request(&socket, &tx);
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socket
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.send_to(
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&open_reply(FLAG_OPEN | FLAG_REPLY, TOKEN, ¶ms, None),
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peer,
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)
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.unwrap();
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let _ = recv_request(&socket, &tx);
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});
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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client.test_hooks.fail_open_timeout_restore.set(true);
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assert!(matches!(
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client.open(),
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Err(ClientError::ReadTimeoutRestore { .. })
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));
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assert!(client.runtime.prepare_open_request().is_ok());
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assert!(client.schedule.is_none());
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assert_eq!(client.applied_dscp, None);
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server.join();
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}
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#[test]
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fn dscp_rollback_failure_keeps_timeout_restoration_primary() {
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let params = default_params();
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let server = start_fake_server(move |socket, tx| {
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let (_, peer) = recv_request(&socket, &tx);
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socket
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.send_to(
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&open_reply(FLAG_OPEN | FLAG_REPLY, TOKEN, ¶ms, None),
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peer,
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)
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.unwrap();
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let _ = recv_request(&socket, &tx);
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});
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let mut client = Client::connect(default_test_config(server.addr)).unwrap();
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client.test_hooks.fail_open_timeout_restore.set(true);
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client.test_hooks.fail_dscp_restore.set(true);
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let error = client.open().unwrap_err();
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assert!(matches!(error, ClientError::ReadTimeoutRestore { .. }));
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assert!(client.runtime.prepare_open_request().is_ok());
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assert!(client.schedule.is_none());
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assert_eq!(client.applied_dscp, None);
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server.join();
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}
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