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/**
* \file psa/crypto_platform.h
*
* \brief PSA cryptography module: Mbed TLS platform definitions
*
* \note This file may not be included directly. Applications must
* include psa/crypto.h.
*
* This file contains platform-dependent type definitions.
*
* In implementations with isolation between the application and the
* cryptography module, implementers should take care to ensure that
* the definitions that are exposed to applications match what the
* module implements.
*/
/*
* 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 file. 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
* PSA cryptography 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;
/** Compare two key owner identifiers.
*
* \param id1 First key owner identifier.
* \param id2 Second key owner identifier.
*
* \return Non-zero if the two key owner identifiers are equal, zero otherwise.
*/
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)
/** The type of the context passed to mbedtls_psa_external_get_random().
*
* Mbed TLS initializes the context to all-bits-zero before calling
* mbedtls_psa_external_get_random() for the first time.
*
* The definition of this type in the Mbed TLS source code is for
* demonstration purposes. Implementers of mbedtls_psa_external_get_random()
* are expected to replace it with a custom definition.
*/
typedef struct {
uintptr_t MBEDTLS_PRIVATE(opaque)[2];
} mbedtls_psa_external_random_context_t;
#endif /* MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG */
#endif /* PSA_CRYPTO_PLATFORM_H */
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