mirror of
https://github.com/yuzu-emu/mbedtls.git
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264 lines
9 KiB
C
264 lines
9 KiB
C
/**
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* \file helpers.h
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*
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* \brief This file contains the prototypes of helper functions for the
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* purpose of testing.
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*/
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/*
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* Copyright The Mbed TLS Contributors
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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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#ifndef TEST_HELPERS_H
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#define TEST_HELPERS_H
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#if !defined(MBEDTLS_CONFIG_FILE)
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#include "mbedtls/config.h"
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#else
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#include MBEDTLS_CONFIG_FILE
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#endif
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#if defined(MBEDTLS_PLATFORM_C)
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#include "mbedtls/platform.h"
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#else
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#include <stdio.h>
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#define mbedtls_fprintf fprintf
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#define mbedtls_snprintf snprintf
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#define mbedtls_calloc calloc
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#define mbedtls_free free
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#define mbedtls_exit exit
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#define mbedtls_time time
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#define mbedtls_time_t time_t
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#define MBEDTLS_EXIT_SUCCESS EXIT_SUCCESS
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#define MBEDTLS_EXIT_FAILURE EXIT_FAILURE
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#endif
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#include <stddef.h>
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#include <stdint.h>
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typedef enum
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{
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MBEDTLS_TEST_RESULT_SUCCESS = 0,
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MBEDTLS_TEST_RESULT_FAILED,
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MBEDTLS_TEST_RESULT_SKIPPED
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} mbedtls_test_result_t;
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typedef struct
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{
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mbedtls_test_result_t result;
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const char *test;
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const char *filename;
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int line_no;
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unsigned long step;
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}
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mbedtls_test_info_t;
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extern mbedtls_test_info_t mbedtls_test_info;
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int mbedtls_test_platform_setup( void );
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void mbedtls_test_platform_teardown( void );
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/**
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* \brief Record the current test case as a failure.
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*
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* This function can be called directly however it is usually
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* called via macros such as TEST_ASSERT, TEST_EQUAL,
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* PSA_ASSERT, etc...
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*
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* \note If the test case was already marked as failed, calling
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* `mbedtls_test_fail( )` again will not overwrite any
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* previous information about the failure.
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*
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* \param test Description of the failure or assertion that failed. This
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* MUST be a string literal.
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* \param line_no Line number where the failure originated.
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* \param filename Filename where the failure originated.
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*/
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void mbedtls_test_fail( const char *test, int line_no, const char* filename );
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/**
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* \brief Record the current test case as skipped.
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*
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* This function can be called directly however it is usually
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* called via the TEST_ASSUME macro.
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*
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* \param test Description of the assumption that caused the test case to
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* be skipped. This MUST be a string literal.
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* \param line_no Line number where the test case was skipped.
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* \param filename Filename where the test case was skipped.
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*/
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void mbedtls_test_skip( const char *test, int line_no, const char* filename );
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/**
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* \brief Set the test step number for failure reports.
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*
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* Call this function to display "step NNN" in addition to the
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* line number and file name if a test fails. Typically the "step
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* number" is the index of a for loop but it can be whatever you
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* want.
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*
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* \param step The step number to report.
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*/
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void mbedtls_test_set_step( unsigned long step );
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/**
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* \brief Reset mbedtls_test_info to a ready/starting state.
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*/
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void mbedtls_test_info_reset( void );
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/**
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* \brief This function decodes the hexadecimal representation of
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* data.
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*
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* \note The output buffer can be the same as the input buffer. For
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* any other overlapping of the input and output buffers, the
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* behavior is undefined.
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*
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* \param obuf Output buffer.
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* \param obufmax Size in number of bytes of \p obuf.
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* \param ibuf Input buffer.
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* \param len The number of unsigned char written in \p obuf. This must
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* not be \c NULL.
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*
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* \return \c 0 on success.
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* \return \c -1 if the output buffer is too small or the input string
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* is not a valid hexadecimal representation.
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*/
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int mbedtls_test_unhexify( unsigned char *obuf, size_t obufmax,
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const char *ibuf, size_t *len );
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void mbedtls_test_hexify( unsigned char *obuf,
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const unsigned char *ibuf,
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int len );
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/**
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* Allocate and zeroize a buffer.
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*
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* If the size if zero, a pointer to a zeroized 1-byte buffer is returned.
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*
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* For convenience, dies if allocation fails.
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*/
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unsigned char *mbedtls_test_zero_alloc( size_t len );
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/**
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* Allocate and fill a buffer from hex data.
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*
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* The buffer is sized exactly as needed. This allows to detect buffer
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* overruns (including overreads) when running the test suite under valgrind.
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*
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* If the size if zero, a pointer to a zeroized 1-byte buffer is returned.
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*
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* For convenience, dies if allocation fails.
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*/
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unsigned char *mbedtls_test_unhexify_alloc( const char *ibuf, size_t *olen );
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int mbedtls_test_hexcmp( uint8_t * a, uint8_t * b,
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uint32_t a_len, uint32_t b_len );
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#if defined(MBEDTLS_CHECK_PARAMS)
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typedef struct
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{
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const char *failure_condition;
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const char *file;
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int line;
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}
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mbedtls_test_param_failed_location_record_t;
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/**
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* \brief Get the location record of the last call to
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* mbedtls_test_param_failed().
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*
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* \note The call expectation is set up and active until the next call to
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* mbedtls_test_param_failed_check_expected_call() or
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* mbedtls_param_failed() that cancels it.
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*/
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void mbedtls_test_param_failed_get_location_record(
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mbedtls_test_param_failed_location_record_t *location_record );
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/**
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* \brief State that a call to mbedtls_param_failed() is expected.
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*
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* \note The call expectation is set up and active until the next call to
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* mbedtls_test_param_failed_check_expected_call() or
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* mbedtls_param_failed that cancel it.
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*/
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void mbedtls_test_param_failed_expect_call( void );
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/**
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* \brief Check whether mbedtls_param_failed() has been called as expected.
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*
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* \note Check whether mbedtls_param_failed() has been called between the
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* last call to mbedtls_test_param_failed_expect_call() and the call
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* to this function.
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*
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* \return \c 0 Since the last call to mbedtls_param_failed_expect_call(),
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* mbedtls_param_failed() has been called.
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* \c -1 Otherwise.
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*/
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int mbedtls_test_param_failed_check_expected_call( void );
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/**
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* \brief Get the address of the object of type jmp_buf holding the execution
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* state information used by mbedtls_param_failed() to do a long jump.
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*
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* \note If a call to mbedtls_param_failed() is not expected in the sense
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* that there is no call to mbedtls_test_param_failed_expect_call()
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* preceding it, then mbedtls_param_failed() will try to restore the
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* execution to the state stored in the jmp_buf object whose address
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* is returned by the present function.
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*
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* \note This function is intended to provide the parameter of the
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* setjmp() function to set-up where mbedtls_param_failed() should
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* long-jump if it has to. It is foreseen to be used as:
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*
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* setjmp( mbedtls_test_param_failed_get_state_buf() ).
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*
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* \note The type of the returned value is not jmp_buf as jmp_buf is an
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* an array type (C specification) and a function cannot return an
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* array type.
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*
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* \note The type of the returned value is not jmp_buf* as then the return
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* value couldn't be used by setjmp(), as its parameter's type is
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* jmp_buf.
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*
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* \return Address of the object of type jmp_buf holding the execution state
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* information used by mbedtls_param_failed() to do a long jump.
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*/
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void* mbedtls_test_param_failed_get_state_buf( void );
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/**
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* \brief Reset the execution state used by mbedtls_param_failed() to do a
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* long jump.
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*
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* \note If a call to mbedtls_param_failed() is not expected in the sense
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* that there is no call to mbedtls_test_param_failed_expect_call()
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* preceding it, then mbedtls_param_failed() will try to restore the
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* execution state that this function reset.
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*
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* \note It is recommended to reset the execution state when the state
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* is not relevant anymore. That way an unexpected call to
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* mbedtls_param_failed() will not trigger a long jump with
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* undefined behavior but rather a long jump that will rather fault.
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*/
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void mbedtls_test_param_failed_reset_state( void );
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#endif /* MBEDTLS_CHECK_PARAMS */
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#if defined(MBEDTLS_USE_PSA_CRYPTO) && defined(MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG)
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#include "test/fake_external_rng_for_test.h"
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#endif
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#endif /* TEST_HELPERS_H */
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