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Add psa_crypto_output_copy_free() implementation

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Signed-off-by: David Horstmann <david.horstmann@arm.com>
This commit is contained in:
David Horstmann 2023-11-08 17:44:18 +00:00
parent 63a73588cf
commit 9467ea343b
1 changed files with 20 additions and 0 deletions
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20
library/psa_crypto.c
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@ -8534,4 +8534,24 @@ psa_status_t psa_crypto_output_copy_alloc(uint8_t *output, size_t output_len,
return PSA_SUCCESS; return PSA_SUCCESS;
} }
psa_status_t psa_crypto_output_copy_free(psa_crypto_output_copy_t *output_copy)
{
if (output_copy->buffer == NULL) {
output_copy->len = 0;
return PSA_SUCCESS;
}
if (output_copy->original == NULL) {
/* We have an internal copy but nothing to copy back to. */
return PSA_ERROR_CORRUPTION_DETECTED;
}
memcpy(output_copy->original, output_copy->buffer, output_copy->len);
mbedtls_free(output_copy->buffer);
output_copy->buffer = NULL;
output_copy->len = 0;
return PSA_SUCCESS;
}
#endif /* MBEDTLS_PSA_CRYPTO_C */ #endif /* MBEDTLS_PSA_CRYPTO_C */