blob: 923fc5467f17257d5b9a9e4009bb39efae808c09 [file] [log] [blame]
/*
* Copyright (c) 2023, Arm Limited. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/**
* This set of compile-time options may be used to enable
* or disable features selectively, and reduce the global
* memory footprint.
*/
/*
* Key algorithms currently supported on mbed TLS libraries
*/
#define TF_MBEDTLS_RSA 1
#define TF_MBEDTLS_ECDSA 2
#define TF_MBEDTLS_RSA_AND_ECDSA 3
#define TF_MBEDTLS_USE_RSA (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_RSA \
|| TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_RSA_AND_ECDSA)
#define TF_MBEDTLS_USE_ECDSA (TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_ECDSA \
|| TF_MBEDTLS_KEY_ALG_ID == TF_MBEDTLS_RSA_AND_ECDSA)
/*
* Hash algorithms currently supported on mbed TLS libraries
*/
#define TF_MBEDTLS_SHA256 1
#define TF_MBEDTLS_SHA384 2
#define TF_MBEDTLS_SHA512 3
/*
* Configuration file to build mbed TLS with the required features for
* Trusted Boot
*/
#define MBEDTLS_PLATFORM_MEMORY
#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
/* Prevent mbed TLS from using snprintf so that it can use tf_snprintf. */
#define MBEDTLS_PLATFORM_SNPRINTF_ALT
#define MBEDTLS_PKCS1_V21
#define MBEDTLS_ASN1_PARSE_C
#define MBEDTLS_ASN1_WRITE_C
#define MBEDTLS_BASE64_C
#define MBEDTLS_BIGNUM_C
#define MBEDTLS_ERROR_C
#define MBEDTLS_MD_C
#define MBEDTLS_MEMORY_BUFFER_ALLOC_C
#define MBEDTLS_OID_C
#define MBEDTLS_PK_C
#define MBEDTLS_PK_PARSE_C
#define MBEDTLS_PK_WRITE_C
#define MBEDTLS_PLATFORM_C
#if TF_MBEDTLS_USE_ECDSA
#define MBEDTLS_ECDSA_C
#define MBEDTLS_ECP_C
#if TF_MBEDTLS_KEY_SIZE == 384
#define MBEDTLS_ECP_DP_SECP384R1_ENABLED
#else
#define MBEDTLS_ECP_DP_SECP256R1_ENABLED
#endif
#endif
#if TF_MBEDTLS_USE_RSA
#define MBEDTLS_RSA_C
#define MBEDTLS_X509_RSASSA_PSS_SUPPORT
#endif
/* The library does not currently support enabling SHA-256 without SHA-224. */
#define MBEDTLS_SHA224_C
#define MBEDTLS_SHA256_C
/*
* If either Trusted Boot or Measured Boot require a stronger algorithm than
* SHA-256, pull in SHA-512 support. Library currently needs to have SHA_384
* support when enabling SHA-512.
*/
#if (TF_MBEDTLS_HASH_ALG_ID != TF_MBEDTLS_SHA256) /* TBB hash algo */
#define MBEDTLS_SHA384_C
#define MBEDTLS_SHA512_C
#else
/* TBB uses SHA-256, what about measured boot? */
#if defined(TF_MBEDTLS_MBOOT_USE_SHA512)
#define MBEDTLS_SHA384_C
#define MBEDTLS_SHA512_C
#endif
#endif
#define MBEDTLS_VERSION_C
#define MBEDTLS_X509_USE_C
#define MBEDTLS_X509_CRT_PARSE_C
#if TF_MBEDTLS_USE_AES_GCM
#define MBEDTLS_AES_C
#define MBEDTLS_CIPHER_C
#define MBEDTLS_GCM_C
#endif
/* MPI / BIGNUM options */
#define MBEDTLS_MPI_WINDOW_SIZE 2
#if TF_MBEDTLS_USE_RSA
#if TF_MBEDTLS_KEY_SIZE <= 2048
#define MBEDTLS_MPI_MAX_SIZE 256
#else
#define MBEDTLS_MPI_MAX_SIZE 512
#endif
#else
#define MBEDTLS_MPI_MAX_SIZE 256
#endif
/* Memory buffer allocator options */
#define MBEDTLS_MEMORY_ALIGN_MULTIPLE 8
/*
* Prevent the use of 128-bit division which
* creates dependency on external libraries.
*/
#define MBEDTLS_NO_UDBL_DIVISION
#ifndef __ASSEMBLER__
/* System headers required to build mbed TLS with the current configuration */
#include <stdlib.h>
#include <mbedtls/check_config.h>
#endif
/*
* Determine Mbed TLS heap size
* 13312 = 13*1024
* 11264 = 11*1024
* 7168 = 7*1024
*/
#if TF_MBEDTLS_USE_ECDSA
#define TF_MBEDTLS_HEAP_SIZE U(13312)
#elif TF_MBEDTLS_USE_RSA
#if TF_MBEDTLS_KEY_SIZE <= 2048
#define TF_MBEDTLS_HEAP_SIZE U(7168)
#else
#define TF_MBEDTLS_HEAP_SIZE U(11264)
#endif
#endif
/*
* Warn if errors from certain functions are ignored.
*
* The warnings are always enabled (where supported) for critical functions
* where ignoring the return value is almost always a bug. This macro extends
* the warnings to more functions.
*/
#define MBEDTLS_CHECK_RETURN_WARNING