Externals: Update mbedtls to 2.28.0

This commit is contained in:
OatmealDome 2022-04-02 19:30:22 -04:00
commit d8a5a8827e
256 changed files with 67343 additions and 15595 deletions

View file

@ -4,7 +4,7 @@
* \brief Consistency checks for configuration options
*/
/*
* Copyright (C) 2006-2018, ARM Limited, All Rights Reserved
* Copyright The Mbed TLS Contributors
* SPDX-License-Identifier: Apache-2.0
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may
@ -18,8 +18,6 @@
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of mbed TLS (https://tls.mbed.org)
*/
/*
@ -45,16 +43,20 @@
#endif
/* Fix the config here. Not convenient to put an #ifdef _WIN32 in config.h as
* it would confuse config.pl. */
* it would confuse config.py. */
#if !defined(MBEDTLS_PLATFORM_SNPRINTF_ALT) && \
!defined(MBEDTLS_PLATFORM_SNPRINTF_MACRO)
#define MBEDTLS_PLATFORM_SNPRINTF_ALT
#endif
#if !defined(MBEDTLS_PLATFORM_VSNPRINTF_ALT) && \
!defined(MBEDTLS_PLATFORM_VSNPRINTF_MACRO)
#define MBEDTLS_PLATFORM_VSNPRINTF_ALT
#endif
#endif /* _WIN32 */
#if defined(TARGET_LIKE_MBED) && \
( defined(MBEDTLS_NET_C) || defined(MBEDTLS_TIMING_C) )
#error "The NET and TIMING modules are not available for mbed OS - please use the network and timing functions provided by mbed OS"
#if defined(TARGET_LIKE_MBED) && defined(MBEDTLS_NET_C)
#error "The NET module is not available for mbed OS - please use the network functions provided by Mbed OS"
#endif
#if defined(MBEDTLS_DEPRECATED_WARNING) && \
@ -98,6 +100,17 @@
#if defined(MBEDTLS_ECDSA_C) && \
( !defined(MBEDTLS_ECP_C) || \
!( defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) || \
defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) || \
defined(MBEDTLS_ECP_DP_BP256R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_BP384R1_ENABLED) || \
defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) ) || \
!defined(MBEDTLS_ASN1_PARSE_C) || \
!defined(MBEDTLS_ASN1_WRITE_C) )
#error "MBEDTLS_ECDSA_C defined, but not all prerequisites"
@ -109,21 +122,32 @@
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE) && \
( defined(MBEDTLS_ECDH_COMPUTE_SHARED_ALT) || \
( defined(MBEDTLS_USE_PSA_CRYPTO) || \
defined(MBEDTLS_ECDH_COMPUTE_SHARED_ALT) || \
defined(MBEDTLS_ECDH_GEN_PUBLIC_ALT) || \
defined(MBEDTLS_ECDSA_SIGN_ALT) || \
defined(MBEDTLS_ECDSA_VERIFY_ALT) || \
defined(MBEDTLS_ECDSA_GENKEY_ALT) || \
defined(MBEDTLS_ECP_INTERNAL_ALT) || \
defined(MBEDTLS_ECP_ALT) )
#error "MBEDTLS_ECP_RESTARTABLE defined, but it cannot coexist with an alternative ECP implementation"
#error "MBEDTLS_ECP_RESTARTABLE defined, but it cannot coexist with an alternative or PSA-based ECP implementation"
#endif
#if defined(MBEDTLS_ECP_RESTARTABLE) && \
! defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
#error "MBEDTLS_ECP_RESTARTABLE defined, but not MBEDTLS_ECDH_LEGACY_CONTEXT"
#endif
#if defined(MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED) && \
defined(MBEDTLS_ECDH_LEGACY_CONTEXT)
#error "MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED defined, but MBEDTLS_ECDH_LEGACY_CONTEXT not disabled"
#endif
#if defined(MBEDTLS_ECDSA_DETERMINISTIC) && !defined(MBEDTLS_HMAC_DRBG_C)
#error "MBEDTLS_ECDSA_DETERMINISTIC defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_ECP_C) && ( !defined(MBEDTLS_BIGNUM_C) || ( \
#if defined(MBEDTLS_ECP_C) && ( !defined(MBEDTLS_BIGNUM_C) || ( \
!defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED) && \
@ -134,10 +158,20 @@
!defined(MBEDTLS_ECP_DP_BP512R1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) ) )
!defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED) && \
!defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED) && \
!defined(MBEDTLS_ECP_DP_CURVE448_ENABLED) ) )
#error "MBEDTLS_ECP_C defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_ECP_C) && !( \
defined(MBEDTLS_ECP_ALT) || \
defined(MBEDTLS_CTR_DRBG_C) || \
defined(MBEDTLS_HMAC_DRBG_C) || \
defined(MBEDTLS_ECP_NO_INTERNAL_RNG))
#error "MBEDTLS_ECP_C requires a DRBG module unless MBEDTLS_ECP_NO_INTERNAL_RNG is defined or an alternative implementation is used"
#endif
#if defined(MBEDTLS_PK_PARSE_C) && !defined(MBEDTLS_ASN1_PARSE_C)
#error "MBEDTLS_PK_PARSE_C defined, but not all prerequesites"
#endif
@ -160,6 +194,16 @@
#error "MBEDTLS_ENTROPY_FORCE_SHA256 defined, but not all prerequisites"
#endif
#if defined(__has_feature)
#if __has_feature(memory_sanitizer)
#define MBEDTLS_HAS_MEMSAN
#endif
#endif
#if defined(MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN) && !defined(MBEDTLS_HAS_MEMSAN)
#error "MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN requires building with MemorySanitizer"
#endif
#undef MBEDTLS_HAS_MEMSAN
#if defined(MBEDTLS_TEST_NULL_ENTROPY) && \
( !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES) )
#error "MBEDTLS_TEST_NULL_ENTROPY defined, but not all prerequisites"
@ -171,7 +215,7 @@
#endif
#if defined(MBEDTLS_GCM_C) && ( \
!defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) )
!defined(MBEDTLS_AES_C) && !defined(MBEDTLS_CAMELLIA_C) && !defined(MBEDTLS_ARIA_C) )
#error "MBEDTLS_GCM_C defined, but not all prerequisites"
#endif
@ -207,6 +251,10 @@
#error "MBEDTLS_ECP_NORMALIZE_MXZ_ALT defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_ECP_NO_FALLBACK) && !defined(MBEDTLS_ECP_INTERNAL_ALT)
#error "MBEDTLS_ECP_NO_FALLBACK defined, but no alternative implementation enabled"
#endif
#if defined(MBEDTLS_HAVEGE_C) && !defined(MBEDTLS_TIMING_C)
#error "MBEDTLS_HAVEGE_C defined, but not all prerequisites"
#endif
@ -220,12 +268,14 @@
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) && \
( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) )
( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_ECDSA_C) || \
!defined(MBEDTLS_X509_CRT_PARSE_C) )
#error "MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \
( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_X509_CRT_PARSE_C) )
( !defined(MBEDTLS_ECDH_C) || !defined(MBEDTLS_RSA_C) || \
!defined(MBEDTLS_X509_CRT_PARSE_C) )
#error "MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED defined, but not all prerequisites"
#endif
@ -274,11 +324,27 @@
#error "MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED) && \
!defined(MBEDTLS_SSL_KEEP_PEER_CERTIFICATE) && \
( !defined(MBEDTLS_SHA256_C) && \
!defined(MBEDTLS_SHA512_C) && \
!defined(MBEDTLS_SHA1_C) )
#error "!MBEDTLS_SSL_KEEP_PEER_CERTIFICATE requires MBEDTLS_SHA512_C, MBEDTLS_SHA256_C or MBEDTLS_SHA1_C"
#endif
#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C) && \
( !defined(MBEDTLS_PLATFORM_C) || !defined(MBEDTLS_PLATFORM_MEMORY) )
#error "MBEDTLS_MEMORY_BUFFER_ALLOC_C defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_MEMORY_BACKTRACE) && !defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
#error "MBEDTLS_MEMORY_BACKTRACE defined, but not all prerequesites"
#endif
#if defined(MBEDTLS_MEMORY_DEBUG) && !defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
#error "MBEDTLS_MEMORY_DEBUG defined, but not all prerequesites"
#endif
#if defined(MBEDTLS_PADLOCK_C) && !defined(MBEDTLS_HAVE_ASM)
#error "MBEDTLS_PADLOCK_C defined, but not all prerequisites"
#endif
@ -308,6 +374,14 @@
#error "MBEDTLS_PKCS11_C defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_PKCS11_C)
#if defined(MBEDTLS_DEPRECATED_REMOVED)
#error "MBEDTLS_PKCS11_C is deprecated and will be removed in a future version of Mbed TLS"
#elif defined(MBEDTLS_DEPRECATED_WARNING)
#warning "MBEDTLS_PKCS11_C is deprecated and will be removed in a future version of Mbed TLS"
#endif
#endif /* MBEDTLS_PKCS11_C */
#if defined(MBEDTLS_PLATFORM_EXIT_ALT) && !defined(MBEDTLS_PLATFORM_C)
#error "MBEDTLS_PLATFORM_EXIT_ALT defined, but not all prerequisites"
#endif
@ -435,10 +509,6 @@
#error "MBEDTLS_PLATFORM_STD_CALLOC defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_PLATFORM_STD_CALLOC) && !defined(MBEDTLS_PLATFORM_MEMORY)
#error "MBEDTLS_PLATFORM_STD_CALLOC defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_PLATFORM_STD_FREE) && !defined(MBEDTLS_PLATFORM_MEMORY)
#error "MBEDTLS_PLATFORM_STD_FREE defined, but not all prerequisites"
#endif
@ -501,6 +571,54 @@
#error "MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO and MBEDTLS_PLATFORM_STD_NV_SEED_WRITE cannot be defined simultaneously"
#endif
#if defined(MBEDTLS_PSA_CRYPTO_C) && \
!( ( ( defined(MBEDTLS_CTR_DRBG_C) || defined(MBEDTLS_HMAC_DRBG_C) ) && \
defined(MBEDTLS_ENTROPY_C) ) || \
defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG) )
#error "MBEDTLS_PSA_CRYPTO_C defined, but not all prerequisites (missing RNG)"
#endif
#if defined(MBEDTLS_PSA_CRYPTO_SPM) && !defined(MBEDTLS_PSA_CRYPTO_C)
#error "MBEDTLS_PSA_CRYPTO_SPM defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_PSA_CRYPTO_SE_C) && \
! ( defined(MBEDTLS_PSA_CRYPTO_C) && \
defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) )
#error "MBEDTLS_PSA_CRYPTO_SE_C defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) && \
! defined(MBEDTLS_PSA_CRYPTO_C)
#error "MBEDTLS_PSA_CRYPTO_STORAGE_C defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_PSA_INJECT_ENTROPY) && \
!( defined(MBEDTLS_PSA_CRYPTO_STORAGE_C) && \
defined(MBEDTLS_ENTROPY_NV_SEED) )
#error "MBEDTLS_PSA_INJECT_ENTROPY defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_PSA_INJECT_ENTROPY) && \
!defined(MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES)
#error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with actual entropy sources"
#endif
#if defined(MBEDTLS_PSA_INJECT_ENTROPY) && \
defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
#error "MBEDTLS_PSA_INJECT_ENTROPY is not compatible with MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG"
#endif
#if defined(MBEDTLS_PSA_ITS_FILE_C) && \
!defined(MBEDTLS_FS_IO)
#error "MBEDTLS_PSA_ITS_FILE_C defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER) && \
defined(MBEDTLS_USE_PSA_CRYPTO)
#error "MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER defined, but it cannot coexist with MBEDTLS_USE_PSA_CRYPTO."
#endif
#if defined(MBEDTLS_RSA_C) && ( !defined(MBEDTLS_BIGNUM_C) || \
!defined(MBEDTLS_OID_C) )
#error "MBEDTLS_RSA_C defined, but not all prerequisites"
@ -516,6 +634,10 @@
#error "MBEDTLS_X509_RSASSA_PSS_SUPPORT defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_SHA512_NO_SHA384) && !defined(MBEDTLS_SHA512_C)
#error "MBEDTLS_SHA512_NO_SHA384 defined without MBEDTLS_SHA512_C"
#endif
#if defined(MBEDTLS_SSL_PROTO_SSL3) && ( !defined(MBEDTLS_MD5_C) || \
!defined(MBEDTLS_SHA1_C) )
#error "MBEDTLS_SSL_PROTO_SSL3 defined, but not all prerequisites"
@ -536,6 +658,28 @@
#error "MBEDTLS_SSL_PROTO_TLS1_2 defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL) && ( !defined(MBEDTLS_HKDF_C) && \
!defined(MBEDTLS_SHA256_C) && !defined(MBEDTLS_SHA512_C) )
#error "MBEDTLS_SSL_PROTO_TLS1_3_EXPERIMENTAL defined, but not all prerequisites"
#endif
#if (defined(MBEDTLS_SSL_PROTO_SSL3) || defined(MBEDTLS_SSL_PROTO_TLS1) || \
defined(MBEDTLS_SSL_PROTO_TLS1_1) || defined(MBEDTLS_SSL_PROTO_TLS1_2)) && \
!(defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_PSK_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED) || \
defined(MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED) )
#error "One or more versions of the TLS protocol are enabled " \
"but no key exchange methods defined with MBEDTLS_KEY_EXCHANGE_xxxx"
#endif
#if defined(MBEDTLS_SSL_PROTO_DTLS) && \
!defined(MBEDTLS_SSL_PROTO_TLS1_1) && \
!defined(MBEDTLS_SSL_PROTO_TLS1_2)
@ -591,6 +735,23 @@
#error "MBEDTLS_SSL_DTLS_ANTI_REPLAY defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \
( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
#error "MBEDTLS_SSL_DTLS_CONNECTION_ID defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \
defined(MBEDTLS_SSL_CID_IN_LEN_MAX) && \
MBEDTLS_SSL_CID_IN_LEN_MAX > 255
#error "MBEDTLS_SSL_CID_IN_LEN_MAX too large (max 255)"
#endif
#if defined(MBEDTLS_SSL_DTLS_CONNECTION_ID) && \
defined(MBEDTLS_SSL_CID_OUT_LEN_MAX) && \
MBEDTLS_SSL_CID_OUT_LEN_MAX > 255
#error "MBEDTLS_SSL_CID_OUT_LEN_MAX too large (max 255)"
#endif
#if defined(MBEDTLS_SSL_DTLS_BADMAC_LIMIT) && \
( !defined(MBEDTLS_SSL_TLS_C) || !defined(MBEDTLS_SSL_PROTO_DTLS) )
#error "MBEDTLS_SSL_DTLS_BADMAC_LIMIT defined, but not all prerequisites"
@ -643,6 +804,10 @@
#endif
#undef MBEDTLS_THREADING_IMPL
#if defined(MBEDTLS_USE_PSA_CRYPTO) && !defined(MBEDTLS_PSA_CRYPTO_C)
#error "MBEDTLS_USE_PSA_CRYPTO defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_VERSION_FEATURES) && !defined(MBEDTLS_VERSION_C)
#error "MBEDTLS_VERSION_FEATURES defined, but not all prerequisites"
#endif
@ -659,6 +824,10 @@
#error "MBEDTLS_X509_CREATE_C defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_CERTS_C) && !defined(MBEDTLS_X509_USE_C)
#error "MBEDTLS_CERTS_C defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_X509_CRT_PARSE_C) && ( !defined(MBEDTLS_X509_USE_C) )
#error "MBEDTLS_X509_CRT_PARSE_C defined, but not all prerequisites"
#endif
@ -688,10 +857,42 @@
#error "MBEDTLS_HAVE_INT32/MBEDTLS_HAVE_INT64 and MBEDTLS_HAVE_ASM cannot be defined simultaneously"
#endif /* (MBEDTLS_HAVE_INT32 || MBEDTLS_HAVE_INT64) && MBEDTLS_HAVE_ASM */
#if defined(MBEDTLS_SSL_PROTO_SSL3)
#if defined(MBEDTLS_DEPRECATED_REMOVED)
#error "MBEDTLS_SSL_PROTO_SSL3 is deprecated and will be removed in a future version of Mbed TLS"
#elif defined(MBEDTLS_DEPRECATED_WARNING)
#warning "MBEDTLS_SSL_PROTO_SSL3 is deprecated and will be removed in a future version of Mbed TLS"
#endif
#endif /* MBEDTLS_SSL_PROTO_SSL3 */
#if defined(MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO)
#if defined(MBEDTLS_DEPRECATED_REMOVED)
#error "MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is deprecated and will be removed in a future version of Mbed TLS"
#elif defined(MBEDTLS_DEPRECATED_WARNING)
#warning "MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO is deprecated and will be removed in a future version of Mbed TLS"
#endif
#endif /* MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO */
#if defined(MBEDTLS_SSL_HW_RECORD_ACCEL)
#if defined(MBEDTLS_DEPRECATED_REMOVED)
#error "MBEDTLS_SSL_HW_RECORD_ACCEL is deprecated and will be removed in a future version of Mbed TLS"
#elif defined(MBEDTLS_DEPRECATED_WARNING)
#warning "MBEDTLS_SSL_HW_RECORD_ACCEL is deprecated and will be removed in a future version of Mbed TLS"
#endif /* MBEDTLS_DEPRECATED_REMOVED */
#endif /* MBEDTLS_SSL_HW_RECORD_ACCEL */
#if defined(MBEDTLS_SSL_DTLS_SRTP) && ( !defined(MBEDTLS_SSL_PROTO_DTLS) )
#error "MBEDTLS_SSL_DTLS_SRTP defined, but not all prerequisites"
#endif
#if defined(MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH) && ( !defined(MBEDTLS_SSL_MAX_FRAGMENT_LENGTH) )
#error "MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH defined, but not all prerequisites"
#endif
/*
* Avoid warning from -pedantic. This is a convenient place for this
* workaround since this is included by every single file before the
* #if defined(MBEDTLS_xxx_C) that results in emtpy translation units.
* #if defined(MBEDTLS_xxx_C) that results in empty translation units.
*/
typedef int mbedtls_iso_c_forbids_empty_translation_units;