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psa: cipher: Move to driver operation context application allocation

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Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron
2021-03-10 12:21:48 +01:00
parent 6e412a71ee
commit 7cb9c3d360
7 changed files with 167 additions and 208 deletions
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59
include/psa/crypto_builtin_cipher.h Normal file
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@ -0,0 +1,59 @@
/*
* Context structure declaration of the software-based driver which performs
* cipher operations through the PSA Crypto driver dispatch layer.
*/
/*
* 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_BUILTIN_CIPHER_H
#define PSA_CRYPTO_BUILTIN_CIPHER_H
#include <psa/crypto_driver_common.h>
#include "mbedtls/cipher.h"
typedef struct {
/** Context structure for the Mbed TLS cipher implementation. */
psa_algorithm_t alg;
uint8_t iv_size;
uint8_t block_size;
mbedtls_cipher_context_t cipher;
} mbedtls_psa_cipher_operation_t;
#define MBEDTLS_PSA_CIPHER_OPERATION_INIT {0, 0, 0, {0}}
/*
* BEYOND THIS POINT, TEST DRIVER DECLARATIONS ONLY.
*/
#if defined(PSA_CRYPTO_DRIVER_TEST)
typedef mbedtls_psa_cipher_operation_t
mbedtls_transparent_test_driver_cipher_operation_t;
typedef struct {
unsigned int initialised : 1;
mbedtls_transparent_test_driver_cipher_operation_t ctx;
} mbedtls_opaque_test_driver_cipher_operation_t;
#define MBEDTLS_TRANSPARENT_TEST_DRIVER_CIPHER_OPERATION_INIT \
MBEDTLS_PSA_CIPHER_OPERATION_INIT
#define MBEDTLS_OPAQUE_TEST_DRIVER_CIPHER_OPERATION_INIT \
{ 0, MBEDTLS_TRANSPARENT_TEST_DRIVER_CIPHER_OPERATION_INIT }
#endif /* PSA_CRYPTO_DRIVER_TEST */
#endif /* PSA_CRYPTO_BUILTIN_CIPHER_H */

13
include/psa/crypto_driver_contexts.h
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@ -31,6 +31,7 @@
/* Include the context structure definitions for the Mbed TLS software drivers */
#include "psa/crypto_builtin_hash.h"
#include "psa/crypto_builtin_cipher.h"
/* Define the context to be used for an operation that is executed through the
* PSA Driver wrapper layer as the union of all possible driver's contexts.
@ -47,5 +48,17 @@ typedef union {
#endif
} psa_driver_hash_context_t;
typedef union {
unsigned dummy; /* Make sure this structure is always non-empty */
mbedtls_psa_cipher_operation_t mbedtls_ctx;
#if defined(PSA_CRYPTO_DRIVER_TEST)
mbedtls_transparent_test_driver_cipher_operation_t
transparent_test_driver_ctx;
mbedtls_opaque_test_driver_cipher_operation_t
opaque_test_driver_ctx;
#endif
} psa_driver_cipher_context_t;
#endif /* PSA_CRYPTO_DRIVER_CONTEXTS_H */
/* End of automatically generated file. */

22
include/psa/crypto_struct.h
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@ -65,18 +65,12 @@ extern "C" {
#include MBEDTLS_CONFIG_FILE
#endif
#include "mbedtls/cipher.h"
#include "mbedtls/cmac.h"
#include "mbedtls/gcm.h"
/* Include the context definition for the compiled-in drivers */
#include "psa/crypto_driver_contexts.h"
typedef struct {
/** Context structure for the assigned driver, when id is not zero. */
void* ctx;
} psa_operation_driver_context_t;
struct psa_hash_operation_s
{
/** Unique ID indicating which driver got assigned to do the
@ -136,14 +130,6 @@ static inline struct psa_mac_operation_s psa_mac_operation_init( void )
return( v );
}
typedef struct {
/** Context structure for the Mbed TLS cipher implementation. */
psa_algorithm_t alg;
uint8_t iv_size;
uint8_t block_size;
mbedtls_cipher_context_t cipher;
} mbedtls_psa_cipher_operation_t;
struct psa_cipher_operation_s
{
/** Unique ID indicating which driver got assigned to do the
@ -156,12 +142,8 @@ struct psa_cipher_operation_s
unsigned int iv_required : 1;
unsigned int iv_set : 1;
union
{
unsigned dummy; /* Enable easier initializing of the union. */
mbedtls_psa_cipher_operation_t mbedtls_ctx;
psa_operation_driver_context_t driver;
} ctx;
psa_driver_cipher_context_t ctx;
};
#define PSA_CIPHER_OPERATION_INIT {0, 0, 0, {0}}