view src/event/quic/ngx_event_quic_tokens.h @ 9045:c6580dce98a8 quic

QUIC: fixed triggering stream read event (ticket #2409). If a client packet carrying a stream data frame is not acked due to packet loss, the stream data is retransmitted later by client. It's also possible that the retransmitted range is bigger than before due to more stream data being available by then. If the original data was read out by the application, there would be no read event triggered by the retransmitted frame, even though it contains new data.
author Roman Arutyunyan <arut@nginx.com>
date Wed, 23 Nov 2022 18:50:26 +0400
parents 3550b00d9dc8
children 77c1418916f7
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/*
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_EVENT_QUIC_TOKENS_H_INCLUDED_
#define _NGX_EVENT_QUIC_TOKENS_H_INCLUDED_


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


#define NGX_QUIC_MAX_TOKEN_SIZE              64
    /* SHA-1(addr)=20 + sizeof(time_t) + retry(1) + odcid.len(1) + odcid */

/* RFC 3602, 2.1 and 2.4 for AES-CBC block size and IV length */
#define NGX_QUIC_AES_256_CBC_IV_LEN          16
#define NGX_QUIC_AES_256_CBC_BLOCK_SIZE      16

#define NGX_QUIC_TOKEN_BUF_SIZE             (NGX_QUIC_AES_256_CBC_IV_LEN      \
                                             + NGX_QUIC_MAX_TOKEN_SIZE        \
                                             + NGX_QUIC_AES_256_CBC_BLOCK_SIZE)


ngx_int_t ngx_quic_new_sr_token(ngx_connection_t *c, ngx_str_t *cid,
    u_char *secret, u_char *token);
ngx_int_t ngx_quic_new_token(ngx_log_t *log, struct sockaddr *sockaddr,
    socklen_t socklen, u_char *key, ngx_str_t *token, ngx_str_t *odcid,
    time_t expires, ngx_uint_t is_retry);
ngx_int_t ngx_quic_validate_token(ngx_connection_t *c,
    u_char *key, ngx_quic_header_t *pkt);

#endif /* _NGX_EVENT_QUIC_TOKENS_H_INCLUDED_ */