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Make copy functions static-testable

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This allows greater compiler optimisation.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
This commit is contained in:
David Horstmann
2023-11-15 15:18:30 +00:00
parent 761761ff64
commit df49355faa
4 changed files with 35 additions and 31 deletions
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26
library/psa_crypto.c
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@ -5523,6 +5523,19 @@ exit:
return status;
}
/** Copy from an input buffer to a local copy.
*
* \param[in] input Pointer to input buffer.
* \param[in] input_len Length of the input buffer.
* \param[out] input_copy Pointer to a local copy in which to store the input data.
* \param[out] input_copy_len Length of the local copy buffer.
* \return #PSA_SUCCESS, if the buffer was successfully
* copied.
* \return #PSA_ERROR_CORRUPTION_DETECTED, if the local
* copy is too small to hold contents of the
* input buffer.
*/
MBEDTLS_STATIC_TESTABLE
psa_status_t psa_crypto_copy_input(const uint8_t *input, size_t input_len,
uint8_t *input_copy, size_t input_copy_len)
{
@ -5535,6 +5548,19 @@ psa_status_t psa_crypto_copy_input(const uint8_t *input, size_t input_len,
return PSA_SUCCESS;
}
/** Copy from a local output buffer into a user-supplied one.
*
* \param[in] output_copy Pointer to a local buffer containing the output.
* \param[in] output_copy_len Length of the local buffer.
* \param[out] output Pointer to user-supplied output buffer.
* \param[out] output_len Length of the user-supplied output buffer.
* \return #PSA_SUCCESS, if the buffer was successfully
* copied.
* \return #PSA_ERROR_CORRUPTION_DETECTED, if the
* user-supplied output buffer is too small to
* hold the contents of the local buffer.
*/
MBEDTLS_STATIC_TESTABLE
psa_status_t psa_crypto_copy_output(const uint8_t *output_copy, size_t output_copy_len,
uint8_t *output, size_t output_len)
{

30
library/psa_crypto_core.h
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@ -515,36 +515,6 @@ psa_status_t psa_verify_hash_builtin(
psa_algorithm_t alg, const uint8_t *hash, size_t hash_length,
const uint8_t *signature, size_t signature_length);
/** Copy from an input buffer to a local copy.
*
* \param[in] input Pointer to input buffer.
* \param[in] input_len Length of the input buffer.
* \param[out] input_copy Pointer to a local copy in which to store the input data.
* \param[out] input_copy_len Length of the local copy buffer.
* \return #PSA_SUCCESS, if the buffer was successfully
* copied.
* \return #PSA_ERROR_CORRUPTION_DETECTED, if the local
* copy is too small to hold contents of the
* input buffer.
*/
psa_status_t psa_crypto_copy_input(const uint8_t *input, size_t input_len,
uint8_t *input_copy, size_t input_copy_len);
/** Copy from a local output buffer into a user-supplied one.
*
* \param[in] output_copy Pointer to a local buffer containing the output.
* \param[in] output_copy_len Length of the local buffer.
* \param[out] output Pointer to user-supplied output buffer.
* \param[out] output_len Length of the user-supplied output buffer.
* \return #PSA_SUCCESS, if the buffer was successfully
* copied.
* \return #PSA_ERROR_CORRUPTION_DETECTED, if the
* user-supplied output buffer is too small to
* hold the contents of the local buffer.
*/
psa_status_t psa_crypto_copy_output(const uint8_t *output_copy, size_t output_copy_len,
uint8_t *output, size_t output_len);
typedef struct psa_crypto_input_copy_s {
uint8_t *buffer;
size_t len;

7
library/psa_crypto_invasive.h
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@ -81,6 +81,13 @@ psa_status_t mbedtls_psa_crypto_configure_entropy_sources(
psa_status_t psa_mac_key_can_do(
psa_algorithm_t algorithm,
psa_key_type_t key_type);
psa_status_t psa_crypto_copy_input(const uint8_t *input, size_t input_len,
uint8_t *input_copy, size_t input_copy_len);
psa_status_t psa_crypto_copy_output(const uint8_t *output_copy, size_t output_copy_len,
uint8_t *output, size_t output_len);
#endif /* MBEDTLS_TEST_HOOKS && MBEDTLS_PSA_CRYPTO_C */
#endif /* PSA_CRYPTO_INVASIVE_H */