Add support for PSA crypto driver size_function
Updated get_expected_key_size in psa_crypto_driver_wrappers to properly
handle using the new size_function from PSA crypto drivers. Created
initial infrastructure to support size_function for the PSA crypto
drivers.
Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
diff --git a/tests/src/drivers/size.c b/tests/src/drivers/size.c
new file mode 100644
index 0000000..05f8a98
--- /dev/null
+++ b/tests/src/drivers/size.c
@@ -0,0 +1,47 @@
+/*
+ * Test driver for retrieving key context size.
+ * Only used by opaque drivers.
+ */
+/* 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.
+ */
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "mbedtls/config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#if defined(MBEDTLS_PSA_CRYPTO_DRIVERS) && defined(PSA_CRYPTO_DRIVER_TEST)
+#include "psa/crypto.h"
+#include "psa_crypto_core.h"
+#include "mbedtls/error.h"
+
+#include "test/drivers/size.h"
+
+#include <string.h>
+
+#ifdef TEST_KEY_CONTEXT_SIZE_FUNCTION
+size_t test_size_function(
+ const psa_key_type_t key_type,
+ const size_t key_bits )
+{
+ (void) key_type;
+ (void) key_bits;
+ return 0;
+}
+#endif /*TEST_KEY_CONTEXT_SIZE_FUNCTION */
+
+#endif /* MBEDTLS_PSA_CRYPTO_DRIVERS && PSA_CRYPTO_DRIVER_TEST */