crypto_platform.h

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/*
 *  Copyright The Mbed TLS Contributors
 *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
 */
 
#ifndef PSA_CRYPTO_PLATFORM_H
#define PSA_CRYPTO_PLATFORM_H
#include "mbedtls/private_access.h"
 
/*
 * Include the build-time configuration information header. Here, we do not
 * include `"mbedtls/build_info.h"` directly but `"psa/build_info.h"`, which
 * is basically just an alias to it. This is to ease the maintenance of the
 * TF-PSA-Crypto repository which has a different build system and
 * configuration.
 */
#include "psa/build_info.h"
 
/* PSA requires several types which C99 provides in stdint.h. */
#include <stdint.h>
 
#if defined(MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER)
 
/* Building for the PSA Crypto service on a PSA platform, a key owner is a PSA
 * partition identifier.
 *
 * The function psa_its_identifier_of_slot() in psa_crypto_storage.c that
 * translates a key identifier to a key storage file name assumes that
 * mbedtls_key_owner_id_t is a 32-bit integer. This function thus needs
 * reworking if mbedtls_key_owner_id_t is not defined as a 32-bit integer
 * here anymore.
 */
typedef int32_t mbedtls_key_owner_id_t;

static inline int mbedtls_key_owner_id_equal(mbedtls_key_owner_id_t id1,
                                             mbedtls_key_owner_id_t id2)
{
    return id1 == id2;
}
 
#endif /* MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER */
 
/*
 * When MBEDTLS_PSA_CRYPTO_SPM is defined, the code is being built for SPM
 * (Secure Partition Manager) integration which separates the code into two
 * parts: NSPE (Non-Secure Processing Environment) and SPE (Secure Processing
 * Environment). When building for the SPE, an additional header file should be
 * included.
 */
#if defined(MBEDTLS_PSA_CRYPTO_SPM)
#define PSA_CRYPTO_SECURE 1
#include "crypto_spe.h"
#endif // MBEDTLS_PSA_CRYPTO_SPM
 
#if defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
typedef struct {
    uintptr_t MBEDTLS_PRIVATE(opaque)[2];
} mbedtls_psa_external_random_context_t;
#endif /* MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG */
 
#if defined(MBEDTLS_PSA_CRYPTO_CLIENT) && !defined(MBEDTLS_PSA_CRYPTO_C)
typedef uint32_t mbedtls_psa_client_handle_t;
#endif
 
#endif /* PSA_CRYPTO_PLATFORM_H */