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https://github.com/yuzu-emu/mbedtls.git
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1af872d23b
Move the declaration of the functions needed to use the test implementation of mbedtls_psa_external_get_random() to a new header file. Before, they were declared in tests/include/test/psa_crypto_helpers.h, but this header file can't be included in sample programs because it also includes headers from the library directory which is not on the include path for sample programs. This fixes the build of the sample programs when MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG and MBEDTLS_USE_PSA_CRYPTO are enabled. Move the implementation of the functions to a separate .c file as well. This isn't strictly necessary, but makes the structure of the source code easier to understand. Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
198 lines
6.8 KiB
C
198 lines
6.8 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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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 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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