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annotate src/core/ngx_proxy_protocol.h @ 8078:5244d3b165ff

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SSL: single allocation in session cache on 32-bit platforms. Given the present typical SSL session sizes, on 32-bit platforms it is now beneficial to store all data in a single allocation, since rbtree node + session id + ASN1 representation of a session takes 256 bytes of shared memory (36 + 32 + 150 = about 218 bytes plus SNI server name). Storing all data in a single allocation is beneficial for SNI names up to about 40 characters long and makes it possible to store about 4000 sessions in one megabyte (instead of about 3000 sessions now). This also slightly simplifies the code.
author Maxim Dounin <mdounin@mdounin.ru>
date Wed, 12 Oct 2022 20:14:40 +0300
parents cca4c8a715de
children 17d6a537fb1b
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3a72b1805c52 Added server-side support for PROXY protocol v1 (ticket #355).
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1
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2 /*
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3 * Copyright (C) Roman Arutyunyan
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4 * Copyright (C) Nginx, Inc.
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5 */
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8 #ifndef _NGX_PROXY_PROTOCOL_H_INCLUDED_
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9 #define _NGX_PROXY_PROTOCOL_H_INCLUDED_
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12 #include <ngx_config.h>
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13 #include <ngx_core.h>
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16 #define NGX_PROXY_PROTOCOL_MAX_HEADER 107
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19 struct ngx_proxy_protocol_s {
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20 ngx_str_t src_addr;
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89adf49fe76a Parsing server PROXY protocol address and port (ticket #1206).
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21 ngx_str_t dst_addr;
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22 in_port_t src_port;
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23 in_port_t dst_port;
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24 ngx_str_t tlvs;
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25 };
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27
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28 u_char *ngx_proxy_protocol_read(ngx_connection_t *c, u_char *buf,
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29 u_char *last);
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30 u_char *ngx_proxy_protocol_write(ngx_connection_t *c, u_char *buf,
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31 u_char *last);
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32 ngx_int_t ngx_proxy_protocol_get_tlv(ngx_connection_t *c, ngx_str_t *name,
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33 ngx_str_t *value);
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36 #endif /* _NGX_PROXY_PROTOCOL_H_INCLUDED_ */