text: /**
   * \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
   *
   *  Licensed under the Apache License, Version 2.0 (the "License"); you may
   *  not use this file except in compliance with the License.
   *  You may obtain a copy of the License at
   *
   *  http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
   *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   */
  
  #ifndef PSA_CRYPTO_PLATFORM_H
  #define PSA_CRYPTO_PLATFORM_H
  
  /* Include the Mbed TLS configuration file, the way Mbed TLS does it
   * in each of its header files. */
  #if !defined(MBEDTLS_CONFIG_FILE)
  #include "mbedtls/config.h"
  #else
  #include MBEDTLS_CONFIG_FILE
  #endif
  
  /* Translate between classic MBEDTLS_xxx feature symbols and PSA_xxx
   * feature symbols. */
  #include "mbedtls/config_psa.h"
  
  /* PSA requires several types which C99 provides in stdint.h. */
  #include <stdint.h>
  
  #if ( defined(__ARMCC_VERSION) || defined(_MSC_VER) ) && \
      !defined(inline) && !defined(__cplusplus)
  #define inline __inline
  #endif
  
  #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 an 32 bits integer. This function thus needs
   * reworking if mbedtls_key_owner_id_t is not defined as a 32 bits 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 opaque[2];
  } mbedtls_psa_external_random_context_t;
  #endif /* MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG */
  
  #endif /* PSA_CRYPTO_PLATFORM_H */
  