http2: allow to configure maximum tolerated invalid frames

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 61092b60c0..79d648276f 100644
--- a/src/node_http2.h
+++ b/src/node_http2.h
@@ -677,6 +677,7 @@ typedef struct {
   uint8_t bitfield;
   uint8_t priority_listener_count;
   uint8_t frame_error_listener_count;
+  uint32_t max_invalid_frames = 1000;
 } SessionJSFields;
 
 // Indices for js_fields_, which serves as a way to communicate data with JS
@@ -689,6 +690,7 @@ enum SessionUint8Fields {
       offsetof(SessionJSFields, priority_listener_count),
   kSessionFrameErrorListenerCount =
       offsetof(SessionJSFields, frame_error_listener_count),
+  kSessionMaxInvalidFrames = offsetof(SessionJSFields, max_invalid_frames),
   kSessionUint8FieldCount = sizeof(SessionJSFields)
 };
 
@@ -1024,7 +1026,7 @@ class Http2Session : public AsyncWrap, public StreamListener {
   // accepted again.
   int32_t rejected_stream_count_ = 0;
   // Also use the invalid frame count as a measure for rejecting input frames.
-  int32_t invalid_frame_count_ = 0;
+  uint32_t invalid_frame_count_ = 0;
 
   void PushOutgoingBuffer(nghttp2_stream_write&& write);
   void CopyDataIntoOutgoing(const uint8_t* src, size_t src_length);