WIP: ignore AGAIN ncbuf error

Author: haproxyFred

src/quic_rx.c

@@ -825,7 +825,7 @@ static int qc_parse_pkt_frms(struct quic_conn *qc, struct quic_rx_packet *pkt,
 	struct quic_frame *frm = NULL;
 	const unsigned char *pos, *end;
 	enum quic_rx_ret_frm ret;
-	int fast_retrans = 0;
+	int fast_retrans = 0, dont_ack = 0;
 
 	TRACE_ENTER(QUIC_EV_CONN_PRSHPKT, qc);
 	/* Skip the AAD */
@@ -1107,9 +1107,9 @@ static int qc_parse_pkt_frms(struct quic_conn *qc, struct quic_rx_packet *pkt,
 
 		case QUIC_RX_RET_FRM_AGAIN:
 			TRACE_STATE("AGAIN encountered", QUIC_EV_CONN_PRSHPKT, qc);
+			dont_ack = 1;
 			/* avoid freeing without eb_delete() */
-			frm = NULL;
-			goto err;
+			break;
 
 		case QUIC_RX_RET_FRM_DONE:
 			TRACE_PROTO("frame handled", QUIC_EV_CONN_PRSAFRM, qc, frm);
@@ -1127,6 +1127,9 @@ static int qc_parse_pkt_frms(struct quic_conn *qc, struct quic_rx_packet *pkt,
 		qc_frm_free(qc, &frm);
 	}
 
+	if (dont_ack)
+		goto err;
+
 	/* Error should be returned if some frames cannot be parsed. */
 	BUG_ON(!eb_is_empty(&cf_frms_tree));