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/*
** Zabbix
** Copyright (C) 2001-2020 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
#if defined(HAVE_POLARSSL) || defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL)
#if defined(HAVE_POLARSSL)
# include <polarssl/entropy.h>
# include <polarssl/ctr_drbg.h>
# include <polarssl/ssl.h>
# include <polarssl/error.h>
# include <polarssl/debug.h>
# include <polarssl/oid.h>
# include <polarssl/version.h>
#elif 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_POLARSSL)
char *my_psk;
size_t my_psk_len;
char *my_psk_identity;
size_t my_psk_identity_len;
x509_crt *ca_cert;
x509_crl *crl;
x509_crt *my_cert;
pk_context *my_priv_key;
entropy_context *entropy;
ctr_drbg_context *ctr_drbg;
int *ciphersuites_cert;
int *ciphersuites_psk;
#elif 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;
#elif defined(HAVE_OPENSSL)
SSL_CTX *ctx_cert;
#ifdef HAVE_OPENSSL_WITH_PSK
SSL_CTX *ctx_psk;
const char *psk_identity_for_cb;
size_t psk_identity_len_for_cb;
char *psk_for_cb;
size_t psk_len_for_cb;
#endif
#endif
};
#endif /* #if defined(_WINDOWS) */
#endif /* #if defined(HAVE_POLARSSL) || defined(HAVE_GNUTLS) || defined(HAVE_OPENSSL) */
#endif /* ZABBIX_TLS_H */
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