1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
4 * Copyright (c) 2018 Xiao Yang <yangx.jy@cn.fujitsu.com>
5 * Copyright (c) Linux Test Project, 2002-2023
6 * Author: Madhu T L <madhu.tarikere@wipro.com>
7 */
8
9 /*\
10 * [Description]
11 *
12 * Basic test for delete_module(2).
13 *
14 * Install dummy_del_mod.ko and delete it with delete_module(2).
15 */
16
17 #include "tst_test.h"
18 #include "tst_module.h"
19 #include "lapi/syscalls.h"
20
21 #define MODULE_NAME "dummy_del_mod"
22 #define MODULE_NAME_KO MODULE_NAME ".ko"
23
24 static int module_loaded;
25
do_delete_module(void)26 static void do_delete_module(void)
27 {
28 if (!module_loaded) {
29 tst_module_load(MODULE_NAME_KO, NULL);
30 module_loaded = 1;
31 }
32
33 TEST(tst_syscall(__NR_delete_module, MODULE_NAME, 0));
34 if (TST_RET == -1) {
35 tst_res(TFAIL | TTERRNO,
36 "delete_module() failed to remove module entry for %s",
37 MODULE_NAME);
38 return;
39 }
40
41 tst_res(TPASS, "delete_module() successful");
42 module_loaded = 0;
43 }
44
cleanup(void)45 static void cleanup(void)
46 {
47 if (module_loaded)
48 tst_module_unload(MODULE_NAME_KO);
49 }
50
51 static struct tst_test test = {
52 .needs_root = 1,
53 /* lockdown and SecureBoot requires signed modules */
54 .skip_in_lockdown = 1,
55 .skip_in_secureboot = 1,
56 .cleanup = cleanup,
57 .test_all = do_delete_module,
58 };
59