Validate preferred_address transport parameter

quinn-rs · Mar 25, 2024 · 1edf915 · 1edf915
1 parent a2a214b
commit 1edf915
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/quinn-proto/src/connection/mod.rs b/quinn-proto/src/connection/mod.rs
@@ -3207,6 +3207,19 @@ impl Connection {
             ));
         }
 
+        if let Some(preferred) = params.preferred_address {
+            if self.side.is_server() {
+                return Err(TransportError::TRANSPORT_PARAMETER_ERROR(
+                    "client sent preferred_address",
+                ));
+            }
+            if preferred.connection_id.is_empty() {
+                return Err(TransportError::TRANSPORT_PARAMETER_ERROR(
+                    "preferred_address must not have a zero-length connection ID",
+                ));
+            }
+        }
+
         self.set_peer_params(params);
 
         Ok(())