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Make it possible to include psa_crypto_random_impl.h with psa_util.h

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There was some intentional duplication between
library/psa_crypto_random_impl.h and include/mbedtls/psa_util.h, with
the intent that the compiler would complain if one file was edited in
a way that's incompatible with the other file. However, the two files
were never included together, and in fact could not be included
together because some definitions can't be duplicated (type, static
variable).

Now library/psa_crypto_random_impl.h includes
include/mbedtls/psa_util.h, so the compiler will check what it can.
There is less redundancy since it isn't always possible to declare
something twice (specifically, types can't be declared).

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2021-02-16 16:50:00 +01:00
parent 2cff7e2a59
commit 996f2168b6
2 changed files with 17 additions and 39 deletions
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5
include/mbedtls/psa_util.h
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@@ -420,8 +420,9 @@ static inline int mbedtls_psa_tls_ecpoint_to_psa_ec( unsigned char const *src,
#endif /* MBEDTLS_USE_PSA_CRYPTO */
/* Expose whatever RNG the PSA subsystem uses to applications using the
* mbedtls_xxx API. The declarations here need to be consistent with the
* implementation in library/psa_crypto_random_impl.h. */
* mbedtls_xxx API. The declarations and definitions here need to be
* consistent with the implementation in library/psa_crypto_random_impl.h.
* See that file for implementation documentation. */
#if defined(MBEDTLS_PSA_CRYPTO_C)
/* The type of a `f_rng` random generator function that many library functions