1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/* BEGIN_HEADER */
/* Test some parts of the test framework. */
#include <test/helpers.h>
#include <test/memory.h>
/* END_HEADER */
/* BEGIN_DEPENDENCIES */
/* END_DEPENDENCIES */
/* BEGIN_CASE depends_on:MBEDTLS_TEST_MEMORY_CAN_POISON */
/* Test that poison+unpoison leaves the memory accessible. */
/* We can't test that poisoning makes the memory inaccessible:
* there's no sane way to catch an Asan/Valgrind complaint.
* That negative testing is done in framework/tests/programs/metatest.c. */
void memory_poison_unpoison(int align, int size)
{
unsigned char *buf = NULL;
const size_t buffer_size = align + size;
TEST_CALLOC(buf, buffer_size);
for (size_t i = 0; i < buffer_size; i++) {
buf[i] = (unsigned char) (i & 0xff);
}
const unsigned char *start = buf == NULL ? NULL : buf + align;
mbedtls_test_memory_poison(start, (size_t) size);
mbedtls_test_memory_unpoison(start, (size_t) size);
for (size_t i = 0; i < buffer_size; i++) {
TEST_EQUAL(buf[i], (unsigned char) (i & 0xff));
}
exit:
mbedtls_free(buf);
}
/* END_CASE */
|
