| /* BEGIN_HEADER */ |
| |
| /* This test file is specific to the ITS implementation in PSA Crypto |
| * on top of stdio. It expects to know what the stdio name of a file is |
| * based on its keystore name. |
| * |
| * Note that if you need to make a change that affects how files are |
| * stored, this may indicate that the key store is changing in a |
| * backward-incompatible way! Think carefully about backward compatibility |
| * before changing how test data is constructed or validated. |
| */ |
| |
| #include "psa_crypto_its.h" |
| |
| #include "test/psa_helpers.h" |
| |
| /* Internal definitions of the implementation, copied for the sake of |
| * some of the tests and of the cleanup code. */ |
| #define PSA_ITS_STORAGE_PREFIX "" |
| #define PSA_ITS_STORAGE_FILENAME_PATTERN "%08lx%08lx" |
| #define PSA_ITS_STORAGE_SUFFIX ".psa_its" |
| #define PSA_ITS_STORAGE_FILENAME_LENGTH \ |
| (sizeof(PSA_ITS_STORAGE_PREFIX) - 1 + /*prefix without terminating 0*/ \ |
| 16 + /*UID (64-bit number in hex)*/ \ |
| 16 + /*UID (64-bit number in hex)*/ \ |
| sizeof(PSA_ITS_STORAGE_SUFFIX) - 1 + /*suffix without terminating 0*/ \ |
| 1 /*terminating null byte*/) |
| #define PSA_ITS_STORAGE_TEMP \ |
| PSA_ITS_STORAGE_PREFIX "tempfile" PSA_ITS_STORAGE_SUFFIX |
| static void psa_its_fill_filename(psa_storage_uid_t uid, char *filename) |
| { |
| /* Break up the UID into two 32-bit pieces so as not to rely on |
| * long long support in snprintf. */ |
| mbedtls_snprintf(filename, PSA_ITS_STORAGE_FILENAME_LENGTH, |
| "%s" PSA_ITS_STORAGE_FILENAME_PATTERN "%s", |
| PSA_ITS_STORAGE_PREFIX, |
| (unsigned long) (uid >> 32), |
| (unsigned long) (uid & 0xffffffff), |
| PSA_ITS_STORAGE_SUFFIX); |
| } |
| |
| /* Maximum uid used by the test, recorded so that cleanup() can delete |
| * all files. 0xffffffffffffffff is always cleaned up, so it does not |
| * need to and should not be taken into account for uid_max. */ |
| static psa_storage_uid_t uid_max = 0; |
| |
| static void cleanup(void) |
| { |
| /* Call remove() on all the files that a test might have created. |
| * We ignore the error if the file exists but remove() fails because |
| * it can't be checked portably (except by attempting to open the file |
| * first, which is needlessly slow and complicated here). A failure of |
| * remove() on an existing file is very unlikely anyway and would not |
| * have significant consequences other than perhaps failing the next |
| * test case. */ |
| char filename[PSA_ITS_STORAGE_FILENAME_LENGTH]; |
| psa_storage_uid_t uid; |
| for (uid = 0; uid < uid_max; uid++) { |
| psa_its_fill_filename(uid, filename); |
| (void) remove(filename); |
| } |
| psa_its_fill_filename((psa_storage_uid_t) (-1), filename); |
| (void) remove(filename); |
| (void) remove(PSA_ITS_STORAGE_TEMP); |
| uid_max = 0; |
| } |
| |
| static psa_status_t psa_its_set_wrap(psa_storage_uid_t uid, |
| uint32_t data_length, |
| const void *p_data, |
| psa_storage_create_flags_t create_flags) |
| { |
| if (uid_max != (psa_storage_uid_t) (-1) && uid_max < uid) { |
| uid_max = uid; |
| } |
| return psa_its_set(uid, data_length, p_data, create_flags); |
| } |
| |
| /* END_HEADER */ |
| |
| /* BEGIN_DEPENDENCIES |
| * depends_on:MBEDTLS_PSA_ITS_FILE_C |
| * END_DEPENDENCIES |
| */ |
| |
| /* BEGIN_CASE */ |
| void set_get_remove(int uid_arg, int flags_arg, data_t *data) |
| { |
| psa_storage_uid_t uid = uid_arg; |
| uint32_t flags = flags_arg; |
| struct psa_storage_info_t info; |
| unsigned char *buffer = NULL; |
| size_t ret_len = 0; |
| |
| TEST_CALLOC(buffer, data->len); |
| |
| PSA_ASSERT(psa_its_set_wrap(uid, data->len, data->x, flags)); |
| |
| PSA_ASSERT(psa_its_get_info(uid, &info)); |
| TEST_ASSERT(info.size == data->len); |
| TEST_ASSERT(info.flags == flags); |
| PSA_ASSERT(psa_its_get(uid, 0, data->len, buffer, &ret_len)); |
| TEST_MEMORY_COMPARE(data->x, data->len, buffer, ret_len); |
| |
| PSA_ASSERT(psa_its_remove(uid)); |
| |
| exit: |
| mbedtls_free(buffer); |
| cleanup(); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void set_overwrite(int uid_arg, |
| int flags1_arg, data_t *data1, |
| int flags2_arg, data_t *data2) |
| { |
| psa_storage_uid_t uid = uid_arg; |
| uint32_t flags1 = flags1_arg; |
| uint32_t flags2 = flags2_arg; |
| struct psa_storage_info_t info; |
| unsigned char *buffer = NULL; |
| size_t ret_len = 0; |
| |
| TEST_CALLOC(buffer, MAX(data1->len, data2->len)); |
| |
| PSA_ASSERT(psa_its_set_wrap(uid, data1->len, data1->x, flags1)); |
| PSA_ASSERT(psa_its_get_info(uid, &info)); |
| TEST_ASSERT(info.size == data1->len); |
| TEST_ASSERT(info.flags == flags1); |
| PSA_ASSERT(psa_its_get(uid, 0, data1->len, buffer, &ret_len)); |
| TEST_MEMORY_COMPARE(data1->x, data1->len, buffer, ret_len); |
| |
| PSA_ASSERT(psa_its_set_wrap(uid, data2->len, data2->x, flags2)); |
| PSA_ASSERT(psa_its_get_info(uid, &info)); |
| TEST_ASSERT(info.size == data2->len); |
| TEST_ASSERT(info.flags == flags2); |
| ret_len = 0; |
| PSA_ASSERT(psa_its_get(uid, 0, data2->len, buffer, &ret_len)); |
| TEST_MEMORY_COMPARE(data2->x, data2->len, buffer, ret_len); |
| |
| PSA_ASSERT(psa_its_remove(uid)); |
| |
| exit: |
| mbedtls_free(buffer); |
| cleanup(); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void set_multiple(int first_id, int count) |
| { |
| psa_storage_uid_t uid0 = first_id; |
| psa_storage_uid_t uid; |
| char stored[40]; |
| char retrieved[40]; |
| size_t ret_len = 0; |
| |
| memset(stored, '.', sizeof(stored)); |
| for (uid = uid0; uid < uid0 + count; uid++) { |
| mbedtls_snprintf(stored, sizeof(stored), |
| "Content of file 0x%08lx", (unsigned long) uid); |
| PSA_ASSERT(psa_its_set_wrap(uid, sizeof(stored), stored, 0)); |
| } |
| |
| for (uid = uid0; uid < uid0 + count; uid++) { |
| mbedtls_snprintf(stored, sizeof(stored), |
| "Content of file 0x%08lx", (unsigned long) uid); |
| PSA_ASSERT(psa_its_get(uid, 0, sizeof(stored), retrieved, &ret_len)); |
| TEST_MEMORY_COMPARE(retrieved, ret_len, |
| stored, sizeof(stored)); |
| PSA_ASSERT(psa_its_remove(uid)); |
| TEST_ASSERT(psa_its_get(uid, 0, 0, NULL, NULL) == |
| PSA_ERROR_DOES_NOT_EXIST); |
| } |
| |
| exit: |
| cleanup(); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void nonexistent(int uid_arg, int create_and_remove) |
| { |
| psa_storage_uid_t uid = uid_arg; |
| struct psa_storage_info_t info; |
| |
| if (create_and_remove) { |
| PSA_ASSERT(psa_its_set_wrap(uid, 0, NULL, 0)); |
| PSA_ASSERT(psa_its_remove(uid)); |
| } |
| |
| TEST_ASSERT(psa_its_remove(uid) == PSA_ERROR_DOES_NOT_EXIST); |
| TEST_ASSERT(psa_its_get_info(uid, &info) == |
| PSA_ERROR_DOES_NOT_EXIST); |
| TEST_ASSERT(psa_its_get(uid, 0, 0, NULL, NULL) == |
| PSA_ERROR_DOES_NOT_EXIST); |
| |
| exit: |
| cleanup(); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void get_at(int uid_arg, data_t *data, |
| int offset, int length_arg, |
| int expected_status) |
| { |
| psa_storage_uid_t uid = uid_arg; |
| unsigned char *buffer = NULL; |
| psa_status_t status; |
| size_t length = length_arg >= 0 ? length_arg : 0; |
| unsigned char *trailer; |
| size_t i; |
| size_t ret_len = 0; |
| |
| TEST_CALLOC(buffer, length + 16); |
| trailer = buffer + length; |
| memset(trailer, '-', 16); |
| |
| PSA_ASSERT(psa_its_set_wrap(uid, data->len, data->x, 0)); |
| |
| status = psa_its_get(uid, offset, length_arg, buffer, &ret_len); |
| TEST_ASSERT(status == (psa_status_t) expected_status); |
| if (status == PSA_SUCCESS) { |
| TEST_MEMORY_COMPARE(data->x + offset, (size_t) length_arg, |
| buffer, ret_len); |
| } |
| for (i = 0; i < 16; i++) { |
| TEST_ASSERT(trailer[i] == '-'); |
| } |
| PSA_ASSERT(psa_its_remove(uid)); |
| |
| exit: |
| mbedtls_free(buffer); |
| cleanup(); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void get_fail(int uid_arg, data_t *data, |
| int overwrite_magic, int cut_header, |
| int expected_status) |
| { |
| psa_storage_uid_t uid = uid_arg; |
| unsigned char *buffer = NULL; |
| psa_status_t status; |
| size_t n; |
| size_t ret_len = 0; |
| char filename[PSA_ITS_STORAGE_FILENAME_LENGTH]; |
| FILE *stream = NULL; |
| char bad_char = 'X'; |
| |
| PSA_ASSERT(psa_its_set_wrap(uid, data->len, data->x, 0)); |
| |
| psa_its_fill_filename(uid, filename); |
| stream = fopen(filename, "rb+"); |
| TEST_ASSERT(NULL != stream); |
| if (0 != overwrite_magic) { |
| /* Overwrite the 1st byte of the file, the ITS magic number */ |
| TEST_ASSERT(fseek(stream, 0, SEEK_SET) == 0); |
| n = fwrite(&bad_char, 1, 1, stream); |
| TEST_ASSERT(1 == n); |
| } |
| if (0 != cut_header) { |
| /* Reopen file and truncate it to 0 byte by specifying the 'w' flag */ |
| stream = freopen(filename, "wb", stream); |
| TEST_ASSERT(NULL != stream); |
| } |
| fclose(stream); |
| stream = NULL; |
| |
| status = psa_its_get(uid, 0, 0, buffer, &ret_len); |
| TEST_ASSERT(status == (psa_status_t) expected_status); |
| TEST_ASSERT(0 == ret_len); |
| PSA_ASSERT(psa_its_remove(uid)); |
| |
| /* Check if the file is really deleted. */ |
| stream = fopen(filename, "rb"); |
| TEST_ASSERT(NULL == stream); |
| |
| exit: |
| if (stream != NULL) { |
| fclose(stream); |
| } |
| |
| mbedtls_free(buffer); |
| cleanup(); |
| } |
| /* END_CASE */ |
| |
| /* BEGIN_CASE */ |
| void set_fail(int uid_arg, data_t *data, |
| int expected_status) |
| { |
| psa_storage_uid_t uid = uid_arg; |
| TEST_ASSERT(psa_its_set_wrap(uid, data->len, data->x, 0) == |
| (psa_status_t) expected_status); |
| |
| exit: |
| cleanup(); |
| } |
| /* END_CASE */ |