Zabbix

/*

** Zabbix

** Copyright (C) 2001-2024 Zabbix SIA

**

** This program is free software; you can redistribute it and/or modify

** it under the terms of the GNU General Public License as published by

** the Free Software Foundation; either version 2 of the License, or

** (at your option) any later version.

**

** This program is distributed in the hope that it will be useful,

** but WITHOUT ANY WARRANTY; without even the implied warranty of

** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

** GNU General Public License for more details.

**

** You should have received a copy of the GNU General Public License

** along with this program; if not, write to the Free Software

** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

**/

​

#ifndef ZABBIX_TLS_H

#define ZABBIX_TLS_H

​

#include "config.h"

​

#if defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL)

​

#if defined(HAVE_GNUTLS)

#   include <gnutls/gnutls.h>

#   include <gnutls/x509.h>

#elif defined(HAVE_OPENSSL)

#   include <openssl/ssl.h>

#   include <openssl/err.h>

#   include <openssl/rand.h>

#endif

​

#if defined(HAVE_OPENSSL) && OPENSSL_VERSION_NUMBER < 0x1010000fL || defined(LIBRESSL_VERSION_NUMBER)

#   if !defined(LIBRESSL_VERSION_NUMBER)

#       define OPENSSL_INIT_LOAD_SSL_STRINGS            0

#       define OPENSSL_INIT_LOAD_CRYPTO_STRINGS     0

#       define OPENSSL_VERSION                  SSLEAY_VERSION

#   endif

#   define OpenSSL_version                  SSLeay_version

#   define TLS_method                   TLSv1_2_method

#   define TLS_client_method                TLSv1_2_client_method

#   define SSL_CTX_get_ciphers(ciphers)         ((ciphers)->cipher_list)

#   if !defined(LIBRESSL_VERSION_NUMBER)

#       define SSL_CTX_set_min_proto_version(ctx, TLSv) 1

#   endif

#endif

​

#if defined(_WINDOWS)

/* Typical thread is long-running, if necessary, it initializes TLS for itself. Zabbix sender is an exception. If */

/* data is sent from a file or in real time then sender's 'main' thread starts the 'send_value' thread for each   */

/* 250 values to be sent. To avoid TLS initialization on every start of 'send_value' thread we initialize TLS in  */

/* 'main' thread and use this structure for passing minimum TLS variables into 'send_value' thread. */

​

struct zbx_thread_sendval_tls_args

{

#if defined(HAVE_GNUTLS)

    gnutls_certificate_credentials_t    my_cert_creds;

    gnutls_psk_client_credentials_t     my_psk_client_creds;

    gnutls_priority_t           ciphersuites_cert;

    gnutls_priority_t           ciphersuites_psk;