47 #define copyio_test_buf_size (PAGE_SIZE * 16)  macro
111 …kern_return_t ret = mach_vm_protect(data->user_map, data->user_addr, copyio_test_buf_size, false, …  in copyio_test_protect()
119 	return copyin((uintptr_t)data->kern_addr, in_buf, copyio_test_buf_size);  in copyin_from_kernel()
128 	for (size_t i = 0; i < copyio_test_buf_size; i++) {  in copyin_test()
131 	memcpy(data->kern_addr, out_buf, copyio_test_buf_size);  in copyin_test()
133 	int err = copyin(data->user_addr, in_buf, copyio_test_buf_size);  in copyin_test()
135 	int cmp = memcmp(out_buf, in_buf, copyio_test_buf_size);  in copyin_test()
141 	err = copyin(data->unmapped_addr, in_buf, copyio_test_buf_size);  in copyin_test()
148 	bzero(in_buf, copyio_test_buf_size);  in copyin_test()
151 	cmp = memcmp(data->kern_addr, in_buf, copyio_test_buf_size);  in copyin_test()
157 	err = copyin(data->user_addr, in_buf, copyio_test_buf_size);  in copyin_test()
166 	return copyout(out_buf, (uintptr_t)data->kern_addr, copyio_test_buf_size);  in copyout_to_kernel()
174 	bzero(data->kern_addr, copyio_test_buf_size);  in copyout_test()
176 	for (size_t i = 0; i < copyio_test_buf_size; i++) {  in copyout_test()
179 	int err = copyout(out_buf, data->user_addr, copyio_test_buf_size);  in copyout_test()
182 	int cmp = memcmp(data->kern_addr, out_buf, copyio_test_buf_size);  in copyout_test()
188 	err = copyout(out_buf, data->unmapped_addr, copyio_test_buf_size);  in copyout_test()
195 	bzero(data->kern_addr, copyio_test_buf_size);  in copyout_test()
199 	cmp = memcmp(out_buf, data->kern_addr, copyio_test_buf_size);  in copyout_test()
205 	err = copyout(out_buf, data->user_addr, copyio_test_buf_size);  in copyout_test()
215 	return copyinstr((user_addr_t)data->kern_addr, in_buf, copyio_test_buf_size, lencopied);  in copyinstr_from_kernel()
225 	bzero(in_buf, copyio_test_buf_size);  in copyinstr_test()
227 	int err = copyinstr(data->user_addr, in_buf, copyio_test_buf_size, &lencopied);  in copyinstr_test()
236 	bzero(in_buf, copyio_test_buf_size);  in copyinstr_test()
246 	err = copyinstr(data->unmapped_addr, in_buf, copyio_test_buf_size, &lencopied);  in copyinstr_test()
251 	bzero(in_buf, copyio_test_buf_size);  in copyinstr_test()
269 	err = copyinstr(data->user_addr, in_buf, copyio_test_buf_size, &lencopied);  in copyinstr_test()
275 	char *kern_unterminated_addr = (char *)data->kern_addr + copyio_test_buf_size - unterminated_size;  in copyinstr_test()
278 	user_addr_t user_unterminated_addr = data->user_addr + copyio_test_buf_size - unterminated_size;  in copyinstr_test()
279 	err = copyinstr(user_unterminated_addr, in_buf, copyio_test_buf_size, &lencopied);  in copyinstr_test()
498 	data.buf1 = kalloc_data(copyio_test_buf_size, Z_WAITOK);  in copyio_test()
499 	data.buf2 = kalloc_data(copyio_test_buf_size, Z_WAITOK);  in copyio_test()
518 …ret = mach_vm_allocate_kernel(data.user_map, &user_addr, copyio_test_buf_size + PAGE_SIZE, VM_FLAG…  in copyio_test()
533 	data.unmapped_addr = data.user_addr + copyio_test_buf_size;  in copyio_test()
538 …ret = mach_vm_remap_kernel(kernel_map, &kern_addr, copyio_test_buf_size, VM_PROT_READ | VM_PROT_WR…  in copyio_test()
554 	mach_vm_deallocate(kernel_map, kern_addr, copyio_test_buf_size);  in copyio_test()
558 	mach_vm_deallocate(data.user_map, data.user_addr, copyio_test_buf_size);  in copyio_test()
562 	kfree_data(data.buf2, copyio_test_buf_size);  in copyio_test()
563 	kfree_data(data.buf1, copyio_test_buf_size);  in copyio_test()