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Correct inclusion of MBEDTLS_XXX based on PSA_WANT_XXX

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Provied a more detailed description for the config_psa.h header file.
This new description makes it clear that the file should not be edited
by users or integrators. Relevant changes should be made to
psa/crypto_config.h instead.

Fixed the logic for the inclusion of MBEDTLS_PSA_BUILTIN_XXX to be set
when PSA_WANT_ALG_XXX and MBEDTLS_PSA_ACCEL_ALG_XXX is not defined,
otherwise the MBEDTLS_XXX should be set.

Ensure that MBEDTLS_PSA_BUILTIN_XXX is set to 1 and not simply defined
per specification.

Signed-off-by: John Durkop <john.durkop@fermatsoftware.com>
This commit is contained in:
John Durkop 2020-10-12 21:36:22 -07:00
parent 185764f5f4
commit 348188229a
1 changed files with 15 additions and 13 deletions
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28
include/mbedtls/config_psa.h
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@ -2,9 +2,13 @@
* \file mbedtls/config_psa.h
* \brief PSA crypto configuration options (set of defines)
*
* This set of compile-time options may be used to enable
* or disable PSA crypto features selectively. This will aid
* in reducing the size of the library by removing unused code.
* This set of compile-time options takes settings defined in
* include/mbedtls/config.h and include/psa/crypto_config.h and uses
* those definitions to define symbols used in the library code.
*
* Users and integrators should not edit this file, please edit
* include/mbedtls/config.h for MBETLS_XXX settings or
* include/psa/crypto_config.h for PSA_WANT_XXX settings.
*/
/*
* Copyright The Mbed TLS Contributors
@ -38,19 +42,17 @@ extern "C" {
#if defined(PSA_WANT_ALG_ECDSA)
#if !defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA)
#define MBEDTLS_PSA_BUILTIN_ALG_ECDSA
#else /* !defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) */
#define MBEDTLS_PSA_BUILTIN_ALG_ECDSA 1
#define MBEDTLS_ECDSA_C
#endif /* !defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA) */
#endif /* defined(PSA_WANT_ALG_ECDSA) */
#endif /* !MBEDTLS_PSA_ACCEL_ALG_ECDSA */
#endif /* PSA_WANT_ALG_ECDSA */
#if defined(PSA_WANT_ALG_ECDSA_DETERMINISTIC)
#if !defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA_DETERMINISTIC)
#define MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA
#else /* && !defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA_DETERMINISTIC) */
#define MBEDTLS_PSA_BUILTIN_ALG_DETERMINISTIC_ECDSA 1
#define MBEDTLS_ECDSA_DETERMINISTIC
#endif /* !defined(MBEDTLS_PSA_ACCEL_ALG_ECDSA_DETERMINISTIC) */
#endif /* defined(PSA_WANT_ALG_DETERMINISTIC_ECDSA) */
#endif /* MBEDTLS_PSA_ACCEL_ALG_ECDSA_DETERMINISTIC */
#endif /* PSA_WANT_ALG_DETERMINISTIC_ECDSA */
#else /* MBEDTLS_PSA_CRYPTO_CONFIG */
@ -58,11 +60,11 @@ extern "C" {
* Ensure PSA_WANT_* defines are setup properly if MBEDTLS_PSA_CRYPTO_CONFIG
* is not defined
*/
#ifdef MBEDTLS_ECDSA_C
#if defined(MBEDTLS_ECDSA_C)
#define PSA_WANT_ALG_ECDSA
#endif /* MBEDTLS_ECDSA_C */
#ifdef MBEDTLS_ECDSA_DETERMINISTIC
#if defined(MBEDTLS_ECDSA_DETERMINISTIC)
#define PSA_WANT_ALG_ECDSA_DETERMINISTIC
#endif /* MBEDTLS_ECDSA_DETERMINISTIC */