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view src/http/v3/ngx_http_v3_uni.h @ 9282:acb8548c00e9

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HTTP/3: fixed dynamic table overflow. While inserting a new entry into the dynamic table, first the entry is added, and then older entries are evicted until table size is within capacity. After the first step, the number of entries may temporarily exceed the maximum calculated from capacity by one entry, which previously caused table overflow. The easiest way to trigger the issue is to keep adding entries with empty names and values until first eviction. The issue was introduced by 987bee4363d1.
author Roman Arutyunyan <arut@nginx.com>
date Tue, 28 May 2024 17:18:50 +0400
parents f742b1b46901
children
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/*
 * Copyright (C) Roman Arutyunyan
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_HTTP_V3_UNI_H_INCLUDED_
#define _NGX_HTTP_V3_UNI_H_INCLUDED_


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


void ngx_http_v3_init_uni_stream(ngx_connection_t *c);
ngx_int_t ngx_http_v3_register_uni_stream(ngx_connection_t *c, uint64_t type);

ngx_int_t ngx_http_v3_cancel_stream(ngx_connection_t *c, ngx_uint_t stream_id);

ngx_int_t ngx_http_v3_send_settings(ngx_connection_t *c);
ngx_int_t ngx_http_v3_send_goaway(ngx_connection_t *c, uint64_t id);
ngx_int_t ngx_http_v3_send_ack_section(ngx_connection_t *c,
    ngx_uint_t stream_id);
ngx_int_t ngx_http_v3_send_cancel_stream(ngx_connection_t *c,
    ngx_uint_t stream_id);
ngx_int_t ngx_http_v3_send_inc_insert_count(ngx_connection_t *c,
    ngx_uint_t inc);


#endif /* _NGX_HTTP_V3_UNI_H_INCLUDED_ */