http2: make maximum tolerated rejected streams configurable

PR-URL: https://github.com/nodejs/node/pull/30534
Fixes: https://github.com/nodejs/node/issues/30505
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/src/node_http2.h b/src/node_http2.h
index 79d648276f..e828999f2b 100644
--- a/src/node_http2.h
+++ b/src/node_http2.h
@@ -678,6 +678,7 @@ typedef struct {
   uint8_t priority_listener_count;
   uint8_t frame_error_listener_count;
   uint32_t max_invalid_frames = 1000;
+  uint32_t max_rejected_streams = 100;
 } SessionJSFields;
 
 // Indices for js_fields_, which serves as a way to communicate data with JS
@@ -691,6 +692,7 @@ enum SessionUint8Fields {
   kSessionFrameErrorListenerCount =
       offsetof(SessionJSFields, frame_error_listener_count),
   kSessionMaxInvalidFrames = offsetof(SessionJSFields, max_invalid_frames),
+  kSessionMaxRejectedStreams = offsetof(SessionJSFields, max_rejected_streams),
   kSessionUint8FieldCount = sizeof(SessionJSFields)
 };
 
@@ -1024,7 +1026,7 @@ class Http2Session : public AsyncWrap, public StreamListener {
   // limit will result in the session being destroyed, as an indication of a
   // misbehaving peer. This counter is reset once new streams are being
   // accepted again.
-  int32_t rejected_stream_count_ = 0;
+  uint32_t rejected_stream_count_ = 0;
   // Also use the invalid frame count as a measure for rejecting input frames.
   uint32_t invalid_frame_count_ = 0;