Unify PSA to Mbed TLS error translation
Move all error translation utilities to psa_util.c.
Introduce macros and functions to avoid having
a local copy of the error translating function in
each place.
Identify overlapping errors and introduce a
generic function.
Provide a single macro for all error translations
(unless one file needs a couple of different ones).
Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
diff --git a/library/psa_util.c b/library/psa_util.c
new file mode 100644
index 0000000..7d0b8a2
--- /dev/null
+++ b/library/psa_util.c
@@ -0,0 +1,150 @@
+/*
+ * PSA hashing layer on top of Mbed TLS software crypto
+ */
+/*
+ * 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.
+ */
+
+#include "common.h"
+
+#if defined(MBEDTLS_PSA_CRYPTO_C)
+
+#include <psa/crypto.h>
+
+#include "psa_crypto_core.h"
+#include <mbedtls/psa_util.h>
+#include <mbedtls/error.h>
+#include <mbedtls/lms.h>
+#include <mbedtls/ssl.h>
+#include <mbedtls/rsa.h>
+
+/* PSA_SUCCESS is kept at the top of each error table since
+ * it's the most common status when everything functions properly. */
+#if !defined(MBEDTLS_MD_C) || !defined(MBEDTLS_MD5_C)
+psa_status_t psa_to_md_errors[] =
+{
+ PSA_SUCCESS, 0,
+ PSA_ERROR_NOT_SUPPORTED, MBEDTLS_ERR_MD_FEATURE_UNAVAILABLE,
+ PSA_ERROR_INVALID_ARGUMENT, MBEDTLS_ERR_MD_BAD_INPUT_DATA,
+ PSA_ERROR_INSUFFICIENT_MEMORY, MBEDTLS_ERR_MD_ALLOC_FAILED
+};
+#endif
+#if defined(MBEDTLS_LMS_C)
+psa_status_t psa_to_lms_errors[] =
+{
+ PSA_SUCCESS, 0,
+ PSA_ERROR_BUFFER_TOO_SMALL, MBEDTLS_ERR_LMS_BUFFER_TOO_SMALL,
+ PSA_ERROR_INVALID_ARGUMENT, MBEDTLS_ERR_LMS_BAD_INPUT_DATA
+};
+#endif
+#if defined(MBEDTLS_USE_PSA_CRYPTO) || defined(MBEDTLS_SSL_PROTO_TLS1_3)
+psa_status_t psa_to_ssl_errors[] =
+{
+ PSA_SUCCESS, 0,
+ PSA_ERROR_INSUFFICIENT_MEMORY, MBEDTLS_ERR_SSL_ALLOC_FAILED,
+ PSA_ERROR_NOT_SUPPORTED, MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE,
+ PSA_ERROR_INVALID_SIGNATURE, MBEDTLS_ERR_SSL_INVALID_MAC,
+ PSA_ERROR_INVALID_ARGUMENT, MBEDTLS_ERR_SSL_BAD_INPUT_DATA,
+ PSA_ERROR_BAD_STATE, MBEDTLS_ERR_SSL_INTERNAL_ERROR,
+ PSA_ERROR_BUFFER_TOO_SMALL, MBEDTLS_ERR_SSL_BUFFER_TOO_SMALL
+};
+#endif
+
+#if defined(PSA_WANT_KEY_TYPE_RSA_PUBLIC_KEY) || \
+ defined(PSA_WANT_KEY_TYPE_RSA_KEY_PAIR)
+psa_status_t psa_to_pk_rsa_errors[] =
+{
+ PSA_SUCCESS, 0,
+ PSA_ERROR_NOT_PERMITTED, MBEDTLS_ERR_RSA_BAD_INPUT_DATA,
+ PSA_ERROR_INVALID_ARGUMENT, MBEDTLS_ERR_RSA_BAD_INPUT_DATA,
+ PSA_ERROR_INVALID_HANDLE, MBEDTLS_ERR_RSA_BAD_INPUT_DATA,
+ PSA_ERROR_BUFFER_TOO_SMALL, MBEDTLS_ERR_RSA_OUTPUT_TOO_LARGE,
+ PSA_ERROR_INSUFFICIENT_ENTROPY, MBEDTLS_ERR_RSA_RNG_FAILED,
+ PSA_ERROR_INVALID_SIGNATURE, MBEDTLS_ERR_RSA_VERIFY_FAILED,
+ PSA_ERROR_INVALID_PADDING, MBEDTLS_ERR_RSA_INVALID_PADDING
+};
+#endif
+
+#if defined(MBEDTLS_USE_PSA_CRYPTO) && \
+ defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)
+psa_status_t psa_to_pk_ecdsa_errors[] =
+{
+ PSA_SUCCESS, 0,
+ PSA_ERROR_NOT_PERMITTED, MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
+ PSA_ERROR_INVALID_ARGUMENT, MBEDTLS_ERR_ECP_BAD_INPUT_DATA,
+ PSA_ERROR_INVALID_HANDLE, MBEDTLS_ERR_ECP_FEATURE_UNAVAILABLE,
+ PSA_ERROR_BUFFER_TOO_SMALL, MBEDTLS_ERR_ECP_BUFFER_TOO_SMALL,
+ PSA_ERROR_INSUFFICIENT_ENTROPY, MBEDTLS_ERR_ECP_RANDOM_FAILED,
+ PSA_ERROR_INVALID_SIGNATURE, MBEDTLS_ERR_ECP_VERIFY_FAILED
+};
+#endif
+
+int psa_generic_status_to_mbedtls(psa_status_t status)
+{
+ switch (status) {
+ case PSA_SUCCESS:
+ return 0;
+ case PSA_ERROR_NOT_SUPPORTED:
+ return MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED;
+ case PSA_ERROR_CORRUPTION_DETECTED:
+ return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
+ case PSA_ERROR_COMMUNICATION_FAILURE:
+ case PSA_ERROR_HARDWARE_FAILURE:
+ return MBEDTLS_ERR_PLATFORM_HW_ACCEL_FAILED;
+ case PSA_ERROR_NOT_PERMITTED:
+ default:
+ return MBEDTLS_ERR_ERROR_GENERIC_ERROR;
+ }
+}
+
+int psa_status_to_mbedtls(psa_status_t status,
+ psa_status_t *local_translations,
+ size_t local_errors_size,
+ int (*fallback_f)(psa_status_t))
+{
+ size_t local_errors_num = (size_t) local_errors_size / 2;
+ for (size_t i = 0; i < local_errors_num; i++) {
+ if (status == local_translations[2 * i]) {
+ return local_translations[2 * i + 1];
+ }
+ }
+ return fallback_f(status);
+}
+
+int psa_pk_status_to_mbedtls(psa_status_t status)
+{
+ switch (status) {
+ case PSA_ERROR_INVALID_HANDLE:
+ return MBEDTLS_ERR_PK_KEY_INVALID_FORMAT;
+ case PSA_ERROR_BUFFER_TOO_SMALL:
+ return MBEDTLS_ERR_PK_BUFFER_TOO_SMALL;
+ case PSA_ERROR_NOT_SUPPORTED:
+ return MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE;
+ case PSA_ERROR_INVALID_ARGUMENT:
+ return MBEDTLS_ERR_PK_INVALID_ALG;
+ case PSA_ERROR_INSUFFICIENT_MEMORY:
+ return MBEDTLS_ERR_PK_ALLOC_FAILED;
+ case PSA_ERROR_BAD_STATE:
+ return MBEDTLS_ERR_PK_BAD_INPUT_DATA;
+ case PSA_ERROR_DATA_CORRUPT:
+ case PSA_ERROR_DATA_INVALID:
+ case PSA_ERROR_STORAGE_FAILURE:
+ return MBEDTLS_ERR_PK_FILE_IO_ERROR;
+ default:
+ return psa_generic_status_to_mbedtls(status);
+ }
+}
+#endif /* MBEDTLS_PSA_CRYPTO_C */