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https://github.com/Mbed-TLS/mbedtls.git
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51681556cf
Add infrastructure to run unit tests and collect the return values for
every PSA API function that returns psa_status_t.
./tests/scripts/psa_collect_statuses.py >statuses.txt
131 lines
4.5 KiB
C
131 lines
4.5 KiB
C
/*
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* Helper functions for tests that use the PSA Crypto API.
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*/
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/* Copyright (C) 2019, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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#ifndef PSA_CRYPTO_HELPERS_H
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#define PSA_CRYPTO_HELPERS_H
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#include "psa_helpers.h"
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#include <psa/crypto.h>
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static int test_helper_is_psa_pristine( int line, const char *file )
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{
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mbedtls_psa_stats_t stats;
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const char *msg = NULL;
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mbedtls_psa_get_stats( &stats );
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if( stats.volatile_slots != 0 )
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msg = "A volatile slot has not been closed properly.";
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else if( stats.persistent_slots != 0 )
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msg = "A persistent slot has not been closed properly.";
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else if( stats.external_slots != 0 )
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msg = "An external slot has not been closed properly.";
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else if( stats.half_filled_slots != 0 )
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msg = "A half-filled slot has not been cleared properly.";
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/* If the test has already failed, don't overwrite the failure
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* information. Do keep the stats lookup above, because it can be
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* convenient to break on it when debugging a failure. */
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if( msg != NULL && test_info.result == TEST_RESULT_SUCCESS )
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test_fail( msg, line, file );
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return( msg == NULL );
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}
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/** Check that no PSA Crypto key slots are in use.
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*/
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#define ASSERT_PSA_PRISTINE( ) \
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do \
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{ \
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if( ! test_helper_is_psa_pristine( __LINE__, __FILE__ ) ) \
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goto exit; \
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} \
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while( 0 )
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static void test_helper_psa_done( int line, const char *file )
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{
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(void) test_helper_is_psa_pristine( line, file );
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mbedtls_psa_crypto_free( );
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}
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/** Shut down the PSA Crypto subsystem. Expect a clean shutdown, with no slots
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* in use.
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*/
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#define PSA_DONE( ) test_helper_psa_done( __LINE__, __FILE__ )
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#if defined(RECORD_PSA_STATUS_COVERAGE_LOG)
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#include <psa/crypto.h>
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/** Name of the file where return statuses are logged by #RECORD_STATUS. */
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#define STATUS_LOG_FILE_NAME "statuses.log"
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static psa_status_t record_status( psa_status_t status,
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const char *func,
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const char *file, int line,
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const char *expr )
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{
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/* We open the log file on first use.
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* We never close the log file, so the record_status feature is not
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* compatible with resource leak detectors such as Asan.
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*/
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static FILE *log;
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if( log == NULL )
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log = fopen( STATUS_LOG_FILE_NAME, "a" );
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fprintf( log, "%d:%s:%s:%d:%s\n", (int) status, func, file, line, expr );
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return( status );
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}
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/** Return value logging wrapper macro.
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*
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* Evaluate \p expr. Write a line recording its value to the log file
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* #STATUS_LOG_FILE_NAME and return the value. The line is a colon-separated
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* list of fields:
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* ```
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* value of expr:string:__FILE__:__LINE__:expr
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* ```
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*
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* The test code does not call this macro explicitly because that would
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* be very invasive. Instead, we instrument the source code by defining
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* a bunch of wrapper macros like
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* ```
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* #define psa_crypto_init() RECORD_STATUS("psa_crypto_init", psa_crypto_init())
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* ```
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* These macro definitions must be present in `instrument_record_status.h`
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* when building the test suites.
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*
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* \param string A string, normally a function name.
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* \param expr An expression to evaluate, normally a call of the function
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* whose name is in \p string. This expression must return
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* a value of type #psa_status_t.
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* \return The value of \p expr.
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*/
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#define RECORD_STATUS( string, expr ) \
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record_status( ( expr ), string, __FILE__, __LINE__, #expr )
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#include "instrument_record_status.h"
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#endif /* defined(RECORD_PSA_STATUS_COVERAGE_LOG) */
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#endif /* PSA_CRYPTO_HELPERS_H */
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