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Add MBEDTLS_PSA_COPY_CALLER_BUFFERS config option

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This allows us to entirely remove copying code, where the convenience
macros are used for copying.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
This commit is contained in:
David Horstmann
2023-11-29 17:24:08 +00:00
parent 34980bd832
commit c0a2c30252
2 changed files with 20 additions and 0 deletions
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7
library/psa_crypto.c
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@ -106,6 +106,7 @@ mbedtls_psa_drbg_context_t *const mbedtls_psa_random_state =
if (global_data.initialized == 0) \
return PSA_ERROR_BAD_STATE;
#if defined(MBEDTLS_PSA_COPY_CALLER_BUFFERS)
/* Substitute an input buffer for a local copy of itself.
* Assumptions:
* - psa_status_t status exists
@ -143,6 +144,12 @@ mbedtls_psa_drbg_context_t *const mbedtls_psa_random_state =
if (local_output_free_status != PSA_SUCCESS) { \
status = local_output_free_status; \
}
#else /* MBEDTLS_PSA_COPY_CALLER_BUFFERS */
#define SWAP_FOR_LOCAL_INPUT(input, length)
#define FREE_LOCAL_INPUT(input)
#define SWAP_FOR_LOCAL_OUTPUT(output, length)
#define FREE_LOCAL_OUTPUT(output)
#endif /* MBEDTLS_PSA_COPY_CALLER_BUFFERS */
psa_status_t mbedtls_to_psa_error(int ret)
{