Check allocated memory is not corruptedHEADmaster

Memory allocated by smaf_optee_allocator is written
(this is possible because QEMU memory is not really secure)
and we check it is not modified by other TEE TA. Just run:
    tee-supplicant &
    test_smaf &
    xtest

Signed-off-by: Pascal Brand <pascal.brand@st.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/tests/test_smaf.c b/tests/test_smaf.c
index 0f3d206..5656a23 100644
--- a/tests/test_smaf.c
+++ b/tests/test_smaf.c
@@ -91,6 +91,9 @@ static void test_create_non_page_aligned_mmap(void)
 	int ret;
 	int fd;
 	void *data;
+	char reference[LENGTH+1];
+	char *pt;
+	int i;
 
 	ret = smaf_create_buffer(LENGTH+1, O_CLOEXEC | O_RDWR, "smaf-optee-allocator", &fd);
 
@@ -100,6 +103,16 @@ static void test_create_non_page_aligned_mmap(void)
 	}
 
 	data = mmap(0, LENGTH+1, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
+	pt = (char *)data;
+
+	for (i=0; i<LENGTH+1; i++)
+		reference[i] = i;
+	memcpy(pt, reference, LENGTH+1);
+	while (!memcmp(pt, reference, LENGTH+1)) {
+		printf("Data did not changed\n");
+		sleep(10);
+	}
+	printf("Data Changed !!!  Wrong\n");
 
 	munmap(data, LENGTH+1);
 	close(fd);