Mercurial > hg > nginx

view src/event/quic/ngx_event_quic_frames.h @ 9153:8f7e6d8c061e

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
QUIC: use last client dcid to receive initial packets. Previously, original dcid was used to receive initial client packets in case server initial response was lost. However, last dcid should be used instead. These two are the same unless retry is used. In case of retry, client resends initial packet with a new dcid, that is different from the original dcid. If server response is lost, the client resends this packet again with the same dcid. This is shown in RFC 9000, 7.3. Authenticating Connection IDs, Figure 8. The issue manifested itself with creating multiple server sessions in response to each post-retry client initial packet, if server response is lost.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 30 Aug 2023 11:09:21 +0400
parents 3c98fa8fef6f
children
line wrap: on
line source


/*
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_
#define _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_


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


typedef ngx_int_t (*ngx_quic_frame_handler_pt)(ngx_connection_t *c,
    ngx_quic_frame_t *frame, void *data);


ngx_quic_frame_t *ngx_quic_alloc_frame(ngx_connection_t *c);
void ngx_quic_free_frame(ngx_connection_t *c, ngx_quic_frame_t *frame);
void ngx_quic_free_frames(ngx_connection_t *c, ngx_queue_t *frames);
void ngx_quic_queue_frame(ngx_quic_connection_t *qc, ngx_quic_frame_t *frame);
ngx_int_t ngx_quic_split_frame(ngx_connection_t *c, ngx_quic_frame_t *f,
    size_t len);

ngx_chain_t *ngx_quic_alloc_chain(ngx_connection_t *c);
void ngx_quic_free_chain(ngx_connection_t *c, ngx_chain_t *in);

ngx_chain_t *ngx_quic_copy_buffer(ngx_connection_t *c, u_char *data,
    size_t len);
ngx_chain_t *ngx_quic_read_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb,
    uint64_t limit);
ngx_chain_t *ngx_quic_write_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb,
    ngx_chain_t *in, uint64_t limit, uint64_t offset);
void ngx_quic_skip_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb,
    uint64_t offset);
void ngx_quic_free_buffer(ngx_connection_t *c, ngx_quic_buffer_t *qb);

#if (NGX_DEBUG)
void ngx_quic_log_frame(ngx_log_t *log, ngx_quic_frame_t *f, ngx_uint_t tx);
#else
#define ngx_quic_log_frame(log, f, tx)
#endif

#endif /* _NGX_EVENT_QUIC_FRAMES_H_INCLUDED_ */