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view src/event/quic/ngx_event_quic_streams.h @ 9189:fcec773dd249

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QUIC: avoid partial expansion of PATH_CHALLENGE/PATH_RESPONSE. By default packets with these frames are expanded to 1200 bytes. Previously, if anti-amplification limit did not allow this expansion, it was limited to whatever size was allowed. However RFC 9000 clearly states no partial expansion should happen in both cases. Section 8.2.1. Initiating Path Validation: An endpoint MUST expand datagrams that contain a PATH_CHALLENGE frame to at least the smallest allowed maximum datagram size of 1200 bytes, unless the anti-amplification limit for the path does not permit sending a datagram of this size. Section 8.2.2. Path Validation Responses: An endpoint MUST expand datagrams that contain a PATH_RESPONSE frame to at least the smallest allowed maximum datagram size of 1200 bytes. ... However, an endpoint MUST NOT expand the datagram containing the PATH_RESPONSE if the resulting data exceeds the anti-amplification limit.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 29 Nov 2023 18:13:25 +0400
parents d041b8d6ab0b
children
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/*
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_QUIC_STREAMS_H_INCLUDED_
#define _NGX_EVENT_QUIC_STREAMS_H_INCLUDED_


#include <ngx_config.h>
#include <ngx_core.h>


ngx_int_t ngx_quic_handle_stream_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_frame_t *frame);
void ngx_quic_handle_stream_ack(ngx_connection_t *c,
    ngx_quic_frame_t *f);
ngx_int_t ngx_quic_handle_max_data_frame(ngx_connection_t *c,
    ngx_quic_max_data_frame_t *f);
ngx_int_t ngx_quic_handle_streams_blocked_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_streams_blocked_frame_t *f);
ngx_int_t ngx_quic_handle_data_blocked_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_data_blocked_frame_t *f);
ngx_int_t ngx_quic_handle_stream_data_blocked_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_stream_data_blocked_frame_t *f);
ngx_int_t ngx_quic_handle_max_stream_data_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_max_stream_data_frame_t *f);
ngx_int_t ngx_quic_handle_reset_stream_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_reset_stream_frame_t *f);
ngx_int_t ngx_quic_handle_stop_sending_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_stop_sending_frame_t *f);
ngx_int_t ngx_quic_handle_max_streams_frame(ngx_connection_t *c,
    ngx_quic_header_t *pkt, ngx_quic_max_streams_frame_t *f);

ngx_int_t ngx_quic_init_streams(ngx_connection_t *c);
void ngx_quic_rbtree_insert_stream(ngx_rbtree_node_t *temp,
    ngx_rbtree_node_t *node, ngx_rbtree_node_t *sentinel);
ngx_quic_stream_t *ngx_quic_find_stream(ngx_rbtree_t *rbtree,
    uint64_t id);
ngx_int_t ngx_quic_close_streams(ngx_connection_t *c,
    ngx_quic_connection_t *qc);

#endif /* _NGX_EVENT_QUIC_STREAMS_H_INCLUDED_ */