# HG changeset patch
# User Sergey Kandaurov <pluknet@nginx.com>
# Date 1584563186 -10800
# Node ID ff540f13d95df30dc83f4074e391d45c44f21eba
# Parent  d3b26c3bea227d8351aca131fcd051a7c9c41c7b
MAX_DATA frame parser/handler.

diff --git a/src/event/ngx_event_quic.c b/src/event/ngx_event_quic.c
--- a/src/event/ngx_event_quic.c
+++ b/src/event/ngx_event_quic.c
@@ -42,6 +42,7 @@ struct ngx_quic_connection_s {
     ngx_quic_frame_t                 *frames;
 
     ngx_quic_streams_t                streams;
+    ngx_uint_t                        max_data;
 };
 
 
@@ -823,6 +824,16 @@ ngx_quic_payload_handler(ngx_connection_
             ack_this = 1;
             break;
 
+        case NGX_QUIC_FT_MAX_DATA:
+            ngx_log_debug1(NGX_LOG_DEBUG_EVENT, c->log, 0,
+                           "MAX_DATA frame"
+                           " { Maximum Data %ui }",
+                           frame.u.max_data.max_data);
+
+            c->quic->max_data = frame.u.max_data.max_data;
+            ack_this = 1;
+            break;
+
         case NGX_QUIC_FT_RESET_STREAM:
             ngx_log_debug3(NGX_LOG_DEBUG_EVENT, c->log, 0,
                            "RESET STREAM frame"
diff --git a/src/event/ngx_event_quic_transport.c b/src/event/ngx_event_quic_transport.c
--- a/src/event/ngx_event_quic_transport.c
+++ b/src/event/ngx_event_quic_transport.c
@@ -424,6 +424,10 @@ ngx_quic_parse_frame(u_char *start, u_ch
 
         break;
 
+    case NGX_QUIC_FT_MAX_DATA:
+        frame->u.max_data.max_data = ngx_quic_parse_int(&p);
+        break;
+
     case NGX_QUIC_FT_RESET_STREAM:
         frame->u.reset_stream.id = ngx_quic_parse_int(&p);
         frame->u.reset_stream.error_code = ngx_quic_parse_int(&p);
diff --git a/src/event/ngx_event_quic_transport.h b/src/event/ngx_event_quic_transport.h
--- a/src/event/ngx_event_quic_transport.h
+++ b/src/event/ngx_event_quic_transport.h
@@ -110,6 +110,11 @@ typedef struct {
 
 
 typedef struct {
+    uint64_t                                    max_data;
+} ngx_quic_max_data_frame_t;
+
+
+typedef struct {
     uint64_t                                    error_code;
     uint64_t                                    frame_type;
     ngx_str_t                                   reason;
@@ -146,6 +151,7 @@ struct ngx_quic_frame_s {
         ngx_quic_crypto_frame_t                 crypto;
         ngx_quic_new_conn_id_frame_t            ncid;
         ngx_quic_stream_frame_t                 stream;
+        ngx_quic_max_data_frame_t               max_data;
         ngx_quic_close_frame_t                  close;
         ngx_quic_reset_stream_frame_t           reset_stream;
         ngx_quic_stop_sending_frame_t           stop_sending;