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view src/mail/ngx_mail_ssl_module.h @ 8041:45764bca69b0

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SSL: disabled sending shutdown after ngx_http_test_reading(). Sending shutdown when ngx_http_test_reading() detects the connection is closed can result in "SSL_shutdown() failed (SSL: ... bad write retry)" critical log messages if there are blocked writes. Fix is to avoid sending shutdown via the c->ssl->no_send_shutdown flag, similarly to how it is done in ngx_http_keepalive_handler() for kqueue when pending EOF is detected. Reported by Jan Prachař (http://mailman.nginx.org/pipermail/nginx-devel/2018-December/011702.html).
author Maxim Dounin <mdounin@mdounin.ru>
date Mon, 10 Aug 2020 18:52:34 +0300
parents 7f955d3b9a0d
children 3bff3f397c05
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/*
 * Copyright (C) Igor Sysoev
 * Copyright (C) Nginx, Inc.
 */


#ifndef _NGX_MAIL_SSL_H_INCLUDED_
#define _NGX_MAIL_SSL_H_INCLUDED_


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


#define NGX_MAIL_STARTTLS_OFF   0
#define NGX_MAIL_STARTTLS_ON    1
#define NGX_MAIL_STARTTLS_ONLY  2


typedef struct {
    ngx_flag_t       enable;
    ngx_flag_t       prefer_server_ciphers;

    ngx_ssl_t        ssl;

    ngx_uint_t       starttls;
    ngx_uint_t       listen;
    ngx_uint_t       protocols;

    ngx_uint_t       verify;
    ngx_uint_t       verify_depth;

    ssize_t          builtin_session_cache;

    time_t           session_timeout;

    ngx_array_t     *certificates;
    ngx_array_t     *certificate_keys;

    ngx_str_t        dhparam;
    ngx_str_t        ecdh_curve;
    ngx_str_t        client_certificate;
    ngx_str_t        trusted_certificate;
    ngx_str_t        crl;

    ngx_str_t        ciphers;

    ngx_array_t     *passwords;

    ngx_shm_zone_t  *shm_zone;

    ngx_flag_t       session_tickets;
    ngx_array_t     *session_ticket_keys;

    u_char          *file;
    ngx_uint_t       line;
} ngx_mail_ssl_conf_t;


extern ngx_module_t  ngx_mail_ssl_module;


#endif /* _NGX_MAIL_SSL_H_INCLUDED_ */