1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) International Business Machines Corp., 2001
4 * 07/2001 Ported by Wayne Boyer
5 * Copyright (c) 2021 Xie Ziyao <xieziyao@huawei.com>
6 */
7
8 /*\
9 * [Description]
10 *
11 * Verify that, chown(2) succeeds to change the owner and group of a file
12 * specified by path to any numeric owner(uid)/group(gid) values when invoked
13 * by super-user.
14 */
15
16 #include "tst_test.h"
17 #include "compat_tst_16.h"
18 #include "tst_safe_macros.h"
19
20 #define FILE_MODE (S_IFREG|S_IRUSR|S_IWUSR|S_IRGRP|S_IROTH)
21 #define TESTFILE "testfile"
22
23 struct test_case_t {
24 char *desc;
25 uid_t uid;
26 gid_t gid;
27 } tc[] = {
28 {"change owner/group ids", 700, 701},
29 {"change owner id only", 702, -1},
30 {"change owner id only", 703, 701},
31 {"change group id only", -1, 704},
32 {"change group id only", 703, 705},
33 {"no change", -1, -1}
34 };
35
run(unsigned int i)36 static void run(unsigned int i)
37 {
38 struct stat stat_buf;
39 uid_t expect_uid = tc[i].uid == (uid_t)-1 ? tc[i - 1].uid : tc[i].uid;
40 gid_t expect_gid = tc[i].gid == (uid_t)-1 ? tc[i - 1].gid : tc[i].gid;
41
42 TST_EXP_PASS(CHOWN(TESTFILE, tc[i].uid, tc[i].gid), "chown(%s, %d, %d), %s",
43 TESTFILE, tc[i].uid, tc[i].gid, tc[i].desc);
44
45 SAFE_STAT(TESTFILE, &stat_buf);
46 if (stat_buf.st_uid != expect_uid || stat_buf.st_gid != expect_gid) {
47 tst_res(TFAIL, "%s: incorrect ownership set, expected %d %d",
48 TESTFILE, expect_uid, expect_gid);
49 }
50 }
51
setup(void)52 static void setup(void)
53 {
54 SAFE_TOUCH(TESTFILE, FILE_MODE, NULL);
55 }
56
57 static struct tst_test test = {
58 .tcnt = ARRAY_SIZE(tc),
59 .needs_root = 1,
60 .needs_tmpdir = 1,
61 .setup = setup,
62 .test = run,
63 };
64