linux-master/lib/test_user_copy.c

34 #define test(condition, msg, ...)					\
52 	if (test(size < 2 * PAGE_SIZE, "buffer too small"))
58 	 * otherwise the test can take a long time and cause soft lockups. So
87 	ret |= test(copy_to_user(umem, kmem, size),
96 			ret |= test(retval != expected,
113 	ret = test(umem_src == NULL, "kmalloc failed");
118 	ret = test(expected == NULL, "kmalloc failed");
124 	ret |= test(copy_to_user(umem, umem_src, size),
134 	ret |= test(copy_struct_from_user(kmem, ksize, umem, usize),
136 	ret |= test(memcmp(kmem, expected, ksize),
147 	ret |= test(copy_struct_from_user(kmem, ksize, umem, usize),
149 	ret |= test(memcmp(kmem, expected, ksize),
157 	ret |= test(copy_struct_from_user(kmem, ksize, umem, usize) != -E2BIG,
165 	ret |= test(clear_user(umem + ksize, usize - ksize),
169 	ret |= test(copy_struct_from_user(kmem, ksize, umem, usize),
171 	ret |= test(memcmp(kmem, expected, ksize),
214 	ret |= test(copy_to_user(usermem, kmem, PAGE_SIZE),
217 	ret |= test(copy_from_user(kmem, usermem, PAGE_SIZE),
219 	ret |= test(memcmp(kmem, kmem + PAGE_SIZE, PAGE_SIZE),
225 		ret |= test(put_user(val_##size, (size __user *)usermem), \
228 		ret |= test(get_user(val_##size, (size __user *)usermem), \
230 		ret |= test(val_##size != check,			  \
261 	ret |= test(!copy_from_user(kmem, (char __user *)(kmem + PAGE_SIZE),
266 	ret |= test(memcmp(kmem + PAGE_SIZE, kmem, PAGE_SIZE),
273 	 * to be tested in LKDTM instead, since this test module does not
276 	ret |= test(!copy_from_user(bad_usermem, (char __user *)kmem,
280 	ret |= test(!copy_to_user((char __user *)kmem, kmem + PAGE_SIZE,
283 	ret |= test(!copy_to_user((char __user *)kmem, bad_usermem,
290 		ret |= test(!get_user(val_##size, (size __user *)kmem),	    \
292 		ret |= test(val_##size != (size)0,			    \
298 		ret |= test(!put_user(val_##size, (size __user *)kmem),	    \