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Rename "output_copy" -> "local_output"

Browse Source 
This helps to prevent confusion as it avoids overloading the word
"copy" as both an action and an object.

Signed-off-by: David Horstmann <david.horstmann@arm.com>
This commit is contained in:
David Horstmann 2023-11-20 12:54:09 +00:00
parent f1734054fa
commit 89875a4f20
4 changed files with 76 additions and 76 deletions
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36
library/psa_crypto.c
View File

@ -8540,50 +8540,50 @@ void psa_crypto_local_input_free(psa_crypto_local_input_t *local_input)
local_input->length = 0;
}
psa_status_t psa_crypto_output_copy_alloc(uint8_t *output, size_t output_len,
psa_crypto_output_copy_t *output_copy)
psa_status_t psa_crypto_local_output_alloc(uint8_t *output, size_t output_len,
psa_crypto_local_output_t *local_output)
{
output_copy->original = NULL;
output_copy->buffer = NULL;
output_copy->length = 0;
local_output->original = NULL;
local_output->buffer = NULL;
local_output->length = 0;
if (output_len == 0) {
return PSA_SUCCESS;
}
output_copy->buffer = mbedtls_calloc(output_len, 1);
if (output_copy->buffer == NULL) {
local_output->buffer = mbedtls_calloc(output_len, 1);
if (local_output->buffer == NULL) {
/* Since we dealt with the zero-length case above, we know that
* a NULL return value means a failure of allocation. */
return PSA_ERROR_INSUFFICIENT_MEMORY;
}
output_copy->length = output_len;
output_copy->original = output;
local_output->length = output_len;
local_output->original = output;
return PSA_SUCCESS;
}
psa_status_t psa_crypto_output_copy_free(psa_crypto_output_copy_t *output_copy)
psa_status_t psa_crypto_local_output_free(psa_crypto_local_output_t *local_output)
{
psa_status_t status;
if (output_copy->buffer == NULL) {
output_copy->length = 0;
if (local_output->buffer == NULL) {
local_output->length = 0;
return PSA_SUCCESS;
}
if (output_copy->original == NULL) {
if (local_output->original == NULL) {
/* We have an internal copy but nothing to copy back to. */
return PSA_ERROR_CORRUPTION_DETECTED;
}
status = psa_crypto_copy_output(output_copy->buffer, output_copy->length,
output_copy->original, output_copy->length);
status = psa_crypto_copy_output(local_output->buffer, local_output->length,
local_output->original, local_output->length);
if (status != PSA_SUCCESS) {
return status;
}
mbedtls_free(output_copy->buffer);
output_copy->buffer = NULL;
output_copy->length = 0;
mbedtls_free(local_output->buffer);
local_output->buffer = NULL;
local_output->length = 0;
return PSA_SUCCESS;
}

24
library/psa_crypto_core.h
View File

@ -883,13 +883,13 @@ psa_status_t psa_crypto_local_input_alloc(const uint8_t *input, size_t input_len
*/
void psa_crypto_local_input_free(psa_crypto_local_input_t *local_input);
typedef struct psa_crypto_output_copy_s {
typedef struct psa_crypto_local_output_s {
uint8_t *original;
uint8_t *buffer;
size_t length;
} psa_crypto_output_copy_t;
} psa_crypto_local_output_t;
#define PSA_CRYPTO_OUTPUT_COPY_INIT { NULL, NULL, 0 }
#define PSA_CRYPTO_LOCAL_OUTPUT_INIT { NULL, NULL, 0 }
/** Allocate a local copy of an output buffer.
*
@ -897,31 +897,31 @@ typedef struct psa_crypto_output_copy_s {
* output buffer but only allocates a buffer
* whose contents will be copied back to the
* original in a future call to
* psa_crypto_output_copy_free().
* psa_crypto_local_output_free().
*
* \param[in] output Pointer to output buffer.
* \param[in] output_len Length of the output buffer.
* \param[out] output_copy Pointer to a psa_crypto_output_copy_t struct to
* populate with the output copy.
* \param[out] local_output Pointer to a psa_crypto_local_output_t struct to
* populate with the local output copy.
* \return #PSA_SUCCESS, if the buffer was successfully
* copied.
* \return #PSA_ERROR_INSUFFICIENT_MEMORY, if a copy of
* the buffer cannot be allocated.
*/
psa_status_t psa_crypto_output_copy_alloc(uint8_t *output, size_t output_len,
psa_crypto_output_copy_t *output_copy);
psa_status_t psa_crypto_local_output_alloc(uint8_t *output, size_t output_len,
psa_crypto_local_output_t *local_output);
/** Copy from a local copy of an output buffer back to the original, then
* free the local copy.
*
* \param[in] output_copy Pointer to a psa_crypto_output_copy_t struct
* \param[in] local_output Pointer to a psa_crypto_local_output_t struct
* populated by a previous call to
* psa_crypto_output_copy_alloc().
* \return #PSA_SUCCESS, if the output copy was
* psa_crypto_local_output_alloc().
* \return #PSA_SUCCESS, if the local output was
* successfully copied back to the original.
* \return #PSA_ERROR_CORRUPTION_DETECTED, if the output
* could not be copied back to the original.
*/
psa_status_t psa_crypto_output_copy_free(psa_crypto_output_copy_t *output_copy);
psa_status_t psa_crypto_local_output_free(psa_crypto_local_output_t *local_output);
#endif /* PSA_CRYPTO_CORE_H */

24
tests/suites/test_suite_psa_crypto_memory.data
View File

@ -43,20 +43,20 @@ local_input_free:0
PSA crypto local input round-trip
local_input_round_trip
PSA crypto output copy alloc
output_copy_alloc:200:PSA_SUCCESS
PSA crypto local output alloc
local_output_alloc:200:PSA_SUCCESS
PSA crypto output copy alloc, NULL buffer
output_copy_alloc:0:PSA_SUCCESS
PSA crypto local output alloc, NULL buffer
local_output_alloc:0:PSA_SUCCESS
PSA crypto output copy free
output_copy_free:200:0:PSA_SUCCESS
PSA crypto local output free
local_output_free:200:0:PSA_SUCCESS
PSA crypto output copy free, NULL buffer
output_copy_free:0:0:PSA_SUCCESS
PSA crypto local output free, NULL buffer
local_output_free:0:0:PSA_SUCCESS
PSA crypto output copy free, NULL original buffer
output_copy_free:200:1:PSA_ERROR_CORRUPTION_DETECTED
PSA crypto local output free, NULL original buffer
local_output_free:200:1:PSA_ERROR_CORRUPTION_DETECTED
PSA crypto output copy round-trip
output_copy_round_trip
PSA crypto local output round-trip
local_output_round_trip

66
tests/suites/test_suite_psa_crypto_memory.function
View File

@ -150,62 +150,62 @@ void local_input_round_trip()
/* END_CASE */
/* BEGIN_CASE */
void output_copy_alloc(int output_len, psa_status_t exp_status)
void local_output_alloc(int output_len, psa_status_t exp_status)
{
uint8_t *output = NULL;
psa_crypto_output_copy_t output_copy;
psa_crypto_local_output_t local_output;
psa_status_t status;
output_copy.buffer = NULL;
local_output.buffer = NULL;
TEST_CALLOC(output, output_len);
status = psa_crypto_output_copy_alloc(output, output_len, &output_copy);
status = psa_crypto_local_output_alloc(output, output_len, &local_output);
TEST_EQUAL(status, exp_status);
if (exp_status == PSA_SUCCESS) {
TEST_ASSERT(output_copy.original == output);
TEST_EQUAL(output_copy.length, output_len);
TEST_ASSERT(local_output.original == output);
TEST_EQUAL(local_output.length, output_len);
}
exit:
mbedtls_free(output_copy.buffer);
output_copy.original = NULL;
output_copy.buffer = NULL;
output_copy.length = 0;
mbedtls_free(local_output.buffer);
local_output.original = NULL;
local_output.buffer = NULL;
local_output.length = 0;
mbedtls_free(output);
output = NULL;
}
/* END_CASE */
/* BEGIN_CASE */
void output_copy_free(int output_len, int original_is_null,
void local_output_free(int output_len, int original_is_null,
psa_status_t exp_status)
{
uint8_t *output = NULL;
uint8_t *buffer_copy_for_comparison = NULL;
psa_crypto_output_copy_t output_copy = PSA_CRYPTO_OUTPUT_COPY_INIT;
psa_crypto_local_output_t local_output = PSA_CRYPTO_LOCAL_OUTPUT_INIT;
psa_status_t status;
if (!original_is_null) {
TEST_CALLOC(output, output_len);
}
TEST_CALLOC(buffer_copy_for_comparison, output_len);
TEST_CALLOC(output_copy.buffer, output_len);
output_copy.length = output_len;
output_copy.original = output;
TEST_CALLOC(local_output.buffer, output_len);
local_output.length = output_len;
local_output.original = output;
if (output_copy.length != 0) {
fill_buffer_pattern(output_copy.buffer, output_copy.length);
memcpy(buffer_copy_for_comparison, output_copy.buffer, output_copy.length);
if (local_output.length != 0) {
fill_buffer_pattern(local_output.buffer, local_output.length);
memcpy(buffer_copy_for_comparison, local_output.buffer, local_output.length);
}
status = psa_crypto_output_copy_free(&output_copy);
status = psa_crypto_local_output_free(&local_output);
TEST_EQUAL(status, exp_status);
if (exp_status == PSA_SUCCESS) {
TEST_ASSERT(output_copy.buffer == NULL);
TEST_EQUAL(output_copy.length, 0);
TEST_ASSERT(local_output.buffer == NULL);
TEST_EQUAL(local_output.length, 0);
TEST_MEMORY_COMPARE(buffer_copy_for_comparison, output_len,
output, output_len);
}
@ -213,32 +213,32 @@ void output_copy_free(int output_len, int original_is_null,
exit:
mbedtls_free(output);
mbedtls_free(buffer_copy_for_comparison);
mbedtls_free(output_copy.buffer);
output_copy.length = 0;
mbedtls_free(local_output.buffer);
local_output.length = 0;
}
/* END_CASE */
/* BEGIN_CASE */
void output_copy_round_trip()
void local_output_round_trip()
{
psa_crypto_output_copy_t output_copy;
psa_crypto_local_output_t local_output;
uint8_t output[200];
uint8_t *buffer_copy_for_comparison = NULL;
psa_status_t status;
status = psa_crypto_output_copy_alloc(output, sizeof(output), &output_copy);
status = psa_crypto_local_output_alloc(output, sizeof(output), &local_output);
TEST_EQUAL(status, PSA_SUCCESS);
TEST_ASSERT(output_copy.buffer != output);
TEST_ASSERT(local_output.buffer != output);
/* Simulate the function generating output */
fill_buffer_pattern(output_copy.buffer, output_copy.length);
fill_buffer_pattern(local_output.buffer, local_output.length);
TEST_CALLOC(buffer_copy_for_comparison, output_copy.length);
memcpy(buffer_copy_for_comparison, output_copy.buffer, output_copy.length);
TEST_CALLOC(buffer_copy_for_comparison, local_output.length);
memcpy(buffer_copy_for_comparison, local_output.buffer, local_output.length);
psa_crypto_output_copy_free(&output_copy);
TEST_ASSERT(output_copy.buffer == NULL);
TEST_EQUAL(output_copy.length, 0);
psa_crypto_local_output_free(&local_output);
TEST_ASSERT(local_output.buffer == NULL);
TEST_EQUAL(local_output.length, 0);
/* Check that the buffer was correctly copied back */
TEST_MEMORY_COMPARE(output, sizeof(output),