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/*
* libwebsockets - small server side websockets and web server implementation
*
* Copyright (C) 2010 - 2019 Andy Green <andy@warmcat.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* This is included from private-lib-core.h if LWS_WITH_TLS
*/
#if !defined(__LWS_TLS_PRIVATE_H__)
#define __LWS_TLS_PRIVATE_H__
#if defined(LWS_WITH_TLS)
#if defined(USE_WOLFSSL)
#if defined(USE_OLD_CYASSL)
#if defined(_WIN32)
#include <IDE/WIN/user_settings.h>
#include <cyassl/ctaocrypt/settings.h>
#else
#include <cyassl/options.h>
#endif
#include <cyassl/openssl/ssl.h>
#include <cyassl/error-ssl.h>
#else
#if defined(_WIN32)
#include <IDE/WIN/user_settings.h>
#include <wolfssl/wolfcrypt/settings.h>
#else
#include <wolfssl/options.h>
#endif
#include <wolfssl/openssl/ssl.h>
#include <wolfssl/error-ssl.h>
#define OPENSSL_NO_TLSEXT
#endif /* not USE_OLD_CYASSL */
#else /* WOLFSSL */
#if defined(LWS_PLAT_FREERTOS)
#define OPENSSL_NO_TLSEXT
#if !defined(LWS_AMAZON_RTOS)
/* AMAZON RTOS has its own setting via MTK_MBEDTLS_CONFIG_FILE */
#undef MBEDTLS_CONFIG_FILE
#define MBEDTLS_CONFIG_FILE <mbedtls/esp_config.h>
#endif
#include <mbedtls/ssl.h>
#include <mbedtls/aes.h>
#include <mbedtls/gcm.h>
#include <mbedtls/x509_crt.h>
#include "ssl.h" /* wrapper !!!! */
#else /* not esp32 */
#if defined(LWS_WITH_MBEDTLS)
#include <mbedtls/ssl.h>
#include <mbedtls/aes.h>
#include <mbedtls/gcm.h>
#include <mbedtls/x509_crt.h>
#include <mbedtls/x509_csr.h>
#include <mbedtls/ecp.h>
#include <mbedtls/ecdsa.h>
#if defined(LWS_AMAZON_LINUX)
#include "ssl.h" /* wrapper !!!! */
#else
#include "openssl/ssl.h" /* wrapper !!!! */
#endif
#else
#include <openssl/ssl.h>
#include <openssl/evp.h>
#include <openssl/err.h>
#include <openssl/md5.h>
#include <openssl/sha.h>
#include <openssl/rsa.h>
#include <openssl/bn.h>
#include <openssl/aes.h>
#ifdef LWS_HAVE_OPENSSL_ECDH_H
#include <openssl/ecdh.h>
#endif
#if !defined(LWS_HAVE_EVP_MD_CTX_free)
#define EVP_MD_CTX_free EVP_MD_CTX_destroy
#endif
#include <openssl/x509v3.h>
#endif /* not mbedtls */
#if defined(OPENSSL_VERSION_NUMBER)
#if (OPENSSL_VERSION_NUMBER < 0x0009080afL)
/*
* later openssl defines this to negate the presence of tlsext... but it was
* only introduced at 0.9.8j. Earlier versions don't know it exists so don't
* define it... making it look like the feature exists...
*/
#define OPENSSL_NO_TLSEXT
#endif
#endif
#endif /* not ESP32 */
#endif /* not USE_WOLFSSL */
#endif /* LWS_WITH_TLS */
enum lws_tls_extant {
LWS_TLS_EXTANT_NO,
LWS_TLS_EXTANT_YES,
LWS_TLS_EXTANT_ALTERNATIVE
};
#if defined(LWS_WITH_TLS)
int
lws_tls_restrict_borrow(struct lws_context *context);
void
lws_tls_restrict_return(struct lws_context *context);
typedef SSL lws_tls_conn;
typedef SSL_CTX lws_tls_ctx;
typedef BIO lws_tls_bio;
typedef X509 lws_tls_x509;
#if defined(LWS_WITH_NETWORK)
#include "private-network.h"
#endif
LWS_EXTERN int
lws_context_init_ssl_library(const struct lws_context_creation_info *info);
LWS_EXTERN void
lws_context_deinit_ssl_library(struct lws_context *context);
#define LWS_SSL_ENABLED(vh) (vh && vh->tls.use_ssl)
extern const struct lws_tls_ops tls_ops_openssl, tls_ops_mbedtls;
struct lws_ec_valid_curves {
int id;
const char *jwa_name; /* list terminates with NULL jwa_name */
};
LWS_EXTERN enum lws_tls_extant
lws_tls_use_any_upgrade_check_extant(const char *name);
LWS_EXTERN int openssl_websocket_private_data_index;
LWS_EXTERN void
lws_tls_err_describe_clear(void);
LWS_EXTERN int
lws_tls_openssl_cert_info(X509 *x509, enum lws_tls_cert_info type,
union lws_tls_cert_info_results *buf, size_t len);
LWS_EXTERN int
lws_tls_check_all_cert_lifetimes(struct lws_context *context);
LWS_EXTERN int
lws_tls_alloc_pem_to_der_file(struct lws_context *context, const char *filename,
const char *inbuf, lws_filepos_t inlen,
uint8_t **buf, lws_filepos_t *amount);
LWS_EXTERN char *
lws_ssl_get_error_string(int status, int ret, char *buf, size_t len);
int
lws_gencrypto_bits_to_bytes(int bits);
void
lws_gencrypto_destroy_elements(struct lws_gencrypto_keyelem *el, int m);
/* genec */
struct lws_gencrypto_keyelem;
struct lws_ec_curves;
LWS_EXTERN const struct lws_ec_curves lws_ec_curves[4];
const struct lws_ec_curves *
lws_genec_curve(const struct lws_ec_curves *table, const char *name);
LWS_VISIBLE void
lws_genec_destroy_elements(struct lws_gencrypto_keyelem *el);
int
lws_gencrypto_mbedtls_rngf(void *context, unsigned char *buf, size_t len);
int
lws_genec_confirm_curve_allowed_by_tls_id(const char *allowed, int id,
struct lws_jwk *jwk);
#else /* ! WITH_TLS */
#define lws_tls_restrict_borrow(xxx) (0)
#define lws_tls_restrict_return(xxx)
#endif
#endif