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Add initial options and support for parameter validation

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This function adds the additional config.h option of MBEDTLS_CHECK_PARAMS which
allows additional validation of parameters passed to the library.
This commit is contained in:
Simon Butcher
2018-12-06 17:36:34 +00:00
committed by Manuel Pégourié-Gonnard
parent 01b34fb316
commit b4868034dd
3 changed files with 59 additions and 0 deletions
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28
include/mbedtls/platform_util.h
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@@ -41,6 +41,34 @@
extern "C" {
#endif
#if defined( MBEDTLS_CHECK_PARAMS ) && defined(MBEDTLS_PLATFORM_C) && \
!defined(MBEDTLS_PARAM_FAILED)
#define MBEDTLS_PARAM_FAILED( cond, file, line ) \
mbedtls_param_failed( cond, file, line )
/**
* \brief User supplied callback function for parameter validation failure.
*
* When the MBEDTLS_CHECK_PARAMS option is enabled, the library
* provides additional validation of all input parameters to
* confirm that they conform to what the interface can accept.
* For example - NULL paramater checks.
*
* These checks are designed to check programmatic issues in the
* application software using Mbed TLS, or catch other runtime
* errors which may be due to issues in the application software.
*
* This function will be called unless an alternative function is
* defined through the MBEDTLS_PARAM_FAILURE function.
*
* This function can return, and the operation will be aborted, or
* alternatively, through use of setjmp()/longjmp() can resume
* execution in the application code.
*/
void mbedtls_param_failed( char* failure_condition, char* file, int line );
#endif /* MBEDTLS_CHECK_PARAMS && MBEDTLS_PLATFORM_C && !MBEDTLS_PARAM_FAILED */
/**
* \brief Securely zeroize a buffer
*