crypto_se_driver: add mock tests

Mock key importing and exporting

tests/CMakeLists.txt

@@ -143,6 +143,7 @@ add_test_suite(psa_crypto_init)
 add_test_suite(psa_crypto_metadata)
 add_test_suite(psa_crypto_persistent_key)
 add_test_suite(psa_crypto_se_driver_hal)
+add_test_suite(psa_crypto_se_driver_hal_mocks)
 add_test_suite(psa_crypto_slot_management)
 add_test_suite(psa_its)
 add_test_suite(shax)

tests/suites/test_suite_psa_crypto_se_driver_hal_mocks.data

@@ -0,0 +1,5 @@
+SE key importing mock test
+mock_import:
+
+SE key exporting mock test
+mock_export:

tests/suites/test_suite_psa_crypto_se_driver_hal_mocks.function

@@ -0,0 +1,206 @@
+/* BEGIN_HEADER */
+#include "psa_crypto_helpers.h"
+#include "psa/crypto_se_driver.h"
+
+#include "psa_crypto_se.h"
+
+static struct
+{
+    uint16_t called;
+    psa_key_slot_number_t key_slot;
+    psa_key_attributes_t attributes;
+    size_t data_length;
+} mock_import_data;
+
+static struct
+{
+    uint16_t called;
+    psa_key_slot_number_t slot_number;
+    size_t data_size;
+} mock_export_data;
+
+static struct
+{
+    uint16_t called;
+} mock_allocate_data;
+
+static struct
+{
+    uint16_t called;
+    psa_key_slot_number_t slot_number;
+} mock_destroy_data;
+
+static void mock_teardown( void )
+{
+    memset( &mock_import_data, 0, sizeof( mock_import_data ) );
+    memset( &mock_export_data, 0, sizeof( mock_export_data ) );
+    memset( &mock_allocate_data, 0, sizeof( mock_allocate_data ) );
+    memset( &mock_destroy_data, 0, sizeof( mock_destroy_data ) );
+}
+
+static psa_status_t mock_import( psa_drv_se_context_t *drv_context,
+                                 psa_key_slot_number_t key_slot,
+                                 const psa_key_attributes_t *attributes,
+                                 const uint8_t *data,
+                                 size_t data_length,
+                                 size_t *bits )
+{
+    (void) drv_context;
+    (void) data;
+    (void) bits;
+
+    mock_import_data.called++;
+    mock_import_data.key_slot = key_slot;
+    mock_import_data.attributes = *attributes;
+    mock_import_data.data_length = data_length;
+
+    return( PSA_SUCCESS );
+}
+
+psa_status_t mock_export( psa_drv_se_context_t *context,
+                          psa_key_slot_number_t slot_number,
+                          uint8_t *p_data,
+                          size_t data_size,
+                          size_t *p_data_length )
+{
+    (void) context;
+    (void) p_data;
+    (void) p_data_length;
+
+    mock_export_data.called++;
+    mock_export_data.slot_number = slot_number;
+    mock_export_data.data_size = data_size;
+
+    return( PSA_SUCCESS );
+}
+
+psa_status_t mock_allocate( psa_drv_se_context_t *drv_context,
+                            void *persistent_data,
+                            const psa_key_attributes_t *attributes,
+                            psa_key_creation_method_t method,
+                            psa_key_slot_number_t *key_slot )
+{
+    (void) drv_context;
+    (void) persistent_data;
+    (void) attributes;
+    (void) method;
+    (void) key_slot;
+
+    mock_allocate_data.called++;
+    *key_slot = 0;
+
+    return( PSA_SUCCESS );
+}
+
+psa_status_t mock_destroy( psa_drv_se_context_t *context,
+                           void *persistent_data,
+                           psa_key_slot_number_t slot_number )
+{
+    (void) context;
+    (void) persistent_data;
+
+    mock_destroy_data.called++;
+    mock_destroy_data.slot_number = slot_number;
+
+    return( PSA_SUCCESS );
+}
+
+/* END_HEADER */
+
+/* BEGIN_DEPENDENCIES
+ * depends_on:MBEDTLS_PSA_CRYPTO_SE_C
+ * END_DEPENDENCIES
+ */
+
+/* BEGIN_CASE */
+void mock_import( )
+{
+    psa_drv_se_t driver;
+    psa_drv_se_key_management_t key_management;
+    psa_key_lifetime_t lifetime = 2;
+    psa_key_id_t id = 1;
+    psa_key_handle_t handle = 0;
+    psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
+    const uint8_t key_material[3] = {0xfa, 0xca, 0xde};
+
+    memset( &driver, 0, sizeof( driver ) );
+    memset( &key_management, 0, sizeof( key_management ) );
+    driver.hal_version = PSA_DRV_SE_HAL_VERSION;
+    driver.key_management = &key_management;
+    key_management.p_import = mock_import;
+    key_management.p_destroy = mock_destroy;
+    key_management.p_allocate = mock_allocate;
+
+    PSA_ASSERT( psa_register_se_driver( lifetime, &driver ) );
+    PSA_ASSERT( psa_crypto_init( ) );
+
+    psa_set_key_id( &attributes, id );
+    psa_set_key_lifetime( &attributes, lifetime );
+    psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_EXPORT );
+    psa_set_key_type( &attributes, PSA_KEY_TYPE_RAW_DATA );
+    PSA_ASSERT( psa_import_key( &attributes,
+                                key_material, sizeof( key_material ),
+                                &handle ) );
+
+    TEST_ASSERT( mock_allocate_data.called == 1 );
+    TEST_ASSERT( mock_import_data.called == 1 );
+    TEST_ASSERT( mock_import_data.attributes.core.type == PSA_KEY_TYPE_RAW_DATA );
+
+    PSA_ASSERT( psa_destroy_key( handle ) );
+
+    TEST_ASSERT( mock_destroy_data.called == 1 );
+
+exit:
+    PSA_DONE( );
+    mock_teardown( );
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
+void mock_export( )
+{
+    psa_drv_se_t driver;
+    psa_drv_se_key_management_t key_management;
+    psa_key_lifetime_t lifetime = 2;
+    psa_key_id_t id = 1;
+    psa_key_handle_t handle = 0;
+    psa_key_attributes_t attributes = PSA_KEY_ATTRIBUTES_INIT;
+    const uint8_t key_material[3] = {0xfa, 0xca, 0xde};
+    uint8_t exported[sizeof( key_material )];
+    size_t exported_length;
+
+    memset( &driver, 0, sizeof( driver ) );
+    memset( &key_management, 0, sizeof( key_management ) );
+    driver.hal_version = PSA_DRV_SE_HAL_VERSION;
+    driver.key_management = &key_management;
+    key_management.p_import = mock_import;
+    key_management.p_export = mock_export;
+    key_management.p_destroy = mock_destroy;
+    key_management.p_allocate = mock_allocate;
+
+    PSA_ASSERT( psa_register_se_driver( lifetime, &driver ) );
+    PSA_ASSERT( psa_crypto_init( ) );
+
+    psa_set_key_id( &attributes, id );
+    psa_set_key_lifetime( &attributes, lifetime );
+    psa_set_key_usage_flags( &attributes, PSA_KEY_USAGE_EXPORT );
+    psa_set_key_type( &attributes, PSA_KEY_TYPE_RAW_DATA );
+    PSA_ASSERT( psa_import_key( &attributes,
+                                key_material, sizeof( key_material ),
+                                &handle ) );
+
+    PSA_ASSERT( psa_export_key( handle,
+                                exported, sizeof( exported ),
+                                &exported_length ) );
+
+    TEST_ASSERT( mock_export_data.called == 1 );
+
+    PSA_ASSERT( psa_destroy_key( handle ) );
+
+    TEST_ASSERT( mock_destroy_data.called == 1 );
+
+exit:
+    PSA_DONE( );
+    mock_teardown( );
+}
+/* END_CASE */