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Add a test for calloc zeroization

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Signed-off-by: Andrzej Kurek <andrzej.kurek@arm.com>
This commit is contained in:
Andrzej Kurek
2023-04-25 05:51:34 -04:00
parent a242c757c2
commit 97cbff7c0d
2 changed files with 24 additions and 1 deletions
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23
programs/test/selftest.c
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@@ -167,6 +167,23 @@ static int run_test_snprintf(void)
test_snprintf(5, "123", 3) != 0;
}
static int run_test_mbedtls_calloc(void)
{
unsigned int buf_size = 256;
unsigned char *buf;
int ret = -1;
buf = mbedtls_calloc(buf_size, sizeof(unsigned char));
for (unsigned int i = 0; i < buf_size; i++) {
if (buf[i] != 0) {
ret = -1;
goto exit;
}
}
ret = 0;
exit:
mbedtls_free(buf);
return ret;
}
/*
* Check if a seed file is present, and if not create one for the entropy
* self-test. If this fails, we attempt the test anyway, so no error is passed
@@ -376,6 +393,12 @@ int main(int argc, char *argv[])
mbedtls_exit(MBEDTLS_EXIT_FAILURE);
}
/* Make sure that mbedtls_calloc zeroizes the buffer */
if (run_test_mbedtls_calloc() != 0) {
mbedtls_printf("the calloc implementation does not zeroize the buffer\n");
mbedtls_exit(MBEDTLS_EXIT_FAILURE);
}
for (argp = argv + (argc >= 1 ? 1 : argc); *argp != NULL; ++argp) {
if (strcmp(*argp, "--quiet") == 0 ||
strcmp(*argp, "-q") == 0) {