feat: No zero-len CIDs for client

They break the upcoming QNS migration tests.

neqo-bin/src/client/http09.rs

@@ -20,7 +20,7 @@ use std::{
 use neqo_common::{event::Provider, qdebug, qinfo, qwarn, Datagram};
 use neqo_crypto::{AuthenticationStatus, ResumptionToken};
 use neqo_transport::{
-    CloseReason, Connection, ConnectionEvent, EmptyConnectionIdGenerator, Error, Output, State,
+    CloseReason, Connection, ConnectionEvent, Error, Output, RandomConnectionIdGenerator, State,
     StreamId, StreamType,
 };
 use url::Url;
@@ -137,7 +137,7 @@ pub fn create_client(
     let mut client = Connection::new_client(
         hostname,
         &[alpn],
-        Rc::new(RefCell::new(EmptyConnectionIdGenerator::default())),
+        Rc::new(RefCell::new(RandomConnectionIdGenerator::new(10))),
         local_addr,
         remote_addr,
         args.shared.quic_parameters.get(alpn),

neqo-bin/src/client/http3.rs

@@ -22,8 +22,8 @@ use neqo_common::{event::Provider, hex, qdebug, qinfo, qwarn, Datagram, Header};
 use neqo_crypto::{AuthenticationStatus, ResumptionToken};
 use neqo_http3::{Error, Http3Client, Http3ClientEvent, Http3Parameters, Http3State, Priority};
 use neqo_transport::{
-    AppError, CloseReason, Connection, EmptyConnectionIdGenerator, Error as TransportError, Output,
-    StreamId,
+    AppError, CloseReason, Connection, Error as TransportError, Output,
+    RandomConnectionIdGenerator, StreamId,
 };
 use url::Url;
 
@@ -72,7 +72,7 @@ pub fn create_client(
     let mut transport = Connection::new_client(
         hostname,
         &[&args.shared.alpn],
-        Rc::new(RefCell::new(EmptyConnectionIdGenerator::default())),
+        Rc::new(RefCell::new(RandomConnectionIdGenerator::new(10))),
         local_addr,
         remote_addr,
         args.shared.quic_parameters.get(args.shared.alpn.as_str()),