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annotate src/event/quic/ngx_event_quic_tokens.h @ 9299:2706b60dc225 default tip

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Core: error logging rate limiting. With this change, error logging to files can be rate-limited with the "rate=" parameter. The parameter specifies allowed log messages rate to a particular file (per worker), in messages per second (m/s). By default, "rate=1000m/s" is used. Rate limiting is implemented using the "leaky bucket" method, similarly to the limit_req module. Maximum burst size is set to the number of log messages per second for each severity level, so "error" messages are logged even if the rate limit is hit by "info" messages (but not vice versa). When the limit is reached for a particular level, the "too many log messages, limiting" message is logged at this level. If debug logging is enabled, either for the particular log file or for the particular connection, rate limiting is not used.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 25 Jun 2024 22:58:56 +0300
parents 77c1418916f7
children
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2 /*
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3 * Copyright (C) Nginx, Inc.
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4 */
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7 #ifndef _NGX_EVENT_QUIC_TOKENS_H_INCLUDED_
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8 #define _NGX_EVENT_QUIC_TOKENS_H_INCLUDED_
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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15 #define NGX_QUIC_MAX_TOKEN_SIZE 64
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16 /* SHA-1(addr)=20 + sizeof(time_t) + retry(1) + odcid.len(1) + odcid */
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18 #define NGX_QUIC_AES_256_GCM_IV_LEN 12
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19 #define NGX_QUIC_AES_256_GCM_TAG_LEN 16
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21 #define NGX_QUIC_TOKEN_BUF_SIZE (NGX_QUIC_AES_256_GCM_IV_LEN \
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22 + NGX_QUIC_MAX_TOKEN_SIZE \
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23 + NGX_QUIC_AES_256_GCM_TAG_LEN)
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26 ngx_int_t ngx_quic_new_sr_token(ngx_connection_t *c, ngx_str_t *cid,
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27 u_char *secret, u_char *token);
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28 ngx_int_t ngx_quic_new_token(ngx_log_t *log, struct sockaddr *sockaddr,
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29 socklen_t socklen, u_char *key, ngx_str_t *token, ngx_str_t *odcid,
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30 time_t expires, ngx_uint_t is_retry);
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31 ngx_int_t ngx_quic_validate_token(ngx_connection_t *c,
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32 u_char *key, ngx_quic_header_t *pkt);
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33
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34 #endif /* _NGX_EVENT_QUIC_TOKENS_H_INCLUDED_ */