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41 lines
1.1 KiB
C
41 lines
1.1 KiB
C
/* BEGIN_HEADER */
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/* Test some parts of the test framework. */
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#include <test/helpers.h>
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#include <test/memory.h>
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/* END_HEADER */
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/* BEGIN_DEPENDENCIES */
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/* END_DEPENDENCIES */
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/* BEGIN_CASE depends_on:MBEDTLS_TEST_MEMORY_CAN_POISON */
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/* Test that poison+unpoison leaves the memory accessible. */
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/* We can't test that poisoning makes the memory inaccessible:
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* there's no sane way to catch an Asan/Valgrind complaint.
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* That negative testing is done in programs/test/metatest.c. */
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void memory_poison_unpoison(int align, int size)
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{
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unsigned char *buf = NULL;
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const size_t buffer_size = align + size;
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TEST_CALLOC(buf, buffer_size);
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for (size_t i = 0; i < buffer_size; i++) {
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buf[i] = (unsigned char) (i & 0xff);
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}
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const unsigned char *start = buf == NULL ? NULL : buf + align;
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mbedtls_test_memory_poison(start, (size_t) size);
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mbedtls_test_memory_unpoison(start, (size_t) size);
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for (size_t i = 0; i < buffer_size; i++) {
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TEST_EQUAL(buf[i], (unsigned char) (i & 0xff));
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}
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exit:
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mbedtls_free(buf);
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}
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/* END_CASE */
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