1*49cdfc7eSAndroid Build Coastguard Worker // SPDX-License-Identifier: GPL-2.0-only
2*49cdfc7eSAndroid Build Coastguard Worker /*
3*49cdfc7eSAndroid Build Coastguard Worker * Copyright (c) Linux Test Project, 2009-2021
4*49cdfc7eSAndroid Build Coastguard Worker * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
5*49cdfc7eSAndroid Build Coastguard Worker * Author: Aniruddha Marathe <[email protected]>
6*49cdfc7eSAndroid Build Coastguard Worker */
7*49cdfc7eSAndroid Build Coastguard Worker
8*49cdfc7eSAndroid Build Coastguard Worker /*\
9*49cdfc7eSAndroid Build Coastguard Worker * [Description]
10*49cdfc7eSAndroid Build Coastguard Worker * Test whether libc wrapper of reboot(2) system call returns appropriate
11*49cdfc7eSAndroid Build Coastguard Worker * error number for invalid cmd parameter or invalid user.
12*49cdfc7eSAndroid Build Coastguard Worker */
13*49cdfc7eSAndroid Build Coastguard Worker
14*49cdfc7eSAndroid Build Coastguard Worker #include <unistd.h>
15*49cdfc7eSAndroid Build Coastguard Worker #include <sys/reboot.h>
16*49cdfc7eSAndroid Build Coastguard Worker #include <linux/reboot.h>
17*49cdfc7eSAndroid Build Coastguard Worker #include <pwd.h>
18*49cdfc7eSAndroid Build Coastguard Worker #include "tst_test.h"
19*49cdfc7eSAndroid Build Coastguard Worker
20*49cdfc7eSAndroid Build Coastguard Worker #define INVALID_CMD 100
21*49cdfc7eSAndroid Build Coastguard Worker #define CMD_DESC(x) .cmd = x, .desc = #x
22*49cdfc7eSAndroid Build Coastguard Worker
23*49cdfc7eSAndroid Build Coastguard Worker char nobody_uid[] = "nobody";
24*49cdfc7eSAndroid Build Coastguard Worker struct passwd *ltpuser;
25*49cdfc7eSAndroid Build Coastguard Worker
26*49cdfc7eSAndroid Build Coastguard Worker static struct tcase {
27*49cdfc7eSAndroid Build Coastguard Worker int cmd;
28*49cdfc7eSAndroid Build Coastguard Worker const char *desc;
29*49cdfc7eSAndroid Build Coastguard Worker int exp_errno;
30*49cdfc7eSAndroid Build Coastguard Worker } tcases[] = {
31*49cdfc7eSAndroid Build Coastguard Worker {CMD_DESC(INVALID_CMD), EINVAL},
32*49cdfc7eSAndroid Build Coastguard Worker {CMD_DESC(LINUX_REBOOT_CMD_CAD_ON), EPERM},
33*49cdfc7eSAndroid Build Coastguard Worker };
34*49cdfc7eSAndroid Build Coastguard Worker
run(unsigned int n)35*49cdfc7eSAndroid Build Coastguard Worker static void run(unsigned int n)
36*49cdfc7eSAndroid Build Coastguard Worker {
37*49cdfc7eSAndroid Build Coastguard Worker struct tcase *tc = &tcases[n];
38*49cdfc7eSAndroid Build Coastguard Worker
39*49cdfc7eSAndroid Build Coastguard Worker if (n == 0)
40*49cdfc7eSAndroid Build Coastguard Worker TST_EXP_FAIL(reboot(tc->cmd),
41*49cdfc7eSAndroid Build Coastguard Worker tc->exp_errno, "%s", tc->desc);
42*49cdfc7eSAndroid Build Coastguard Worker else {
43*49cdfc7eSAndroid Build Coastguard Worker ltpuser = SAFE_GETPWNAM(nobody_uid);
44*49cdfc7eSAndroid Build Coastguard Worker SAFE_SETEUID(ltpuser->pw_uid);
45*49cdfc7eSAndroid Build Coastguard Worker
46*49cdfc7eSAndroid Build Coastguard Worker TST_EXP_FAIL(reboot(tc->cmd),
47*49cdfc7eSAndroid Build Coastguard Worker tc->exp_errno, "%s", tc->desc);
48*49cdfc7eSAndroid Build Coastguard Worker
49*49cdfc7eSAndroid Build Coastguard Worker SAFE_SETEUID(0);
50*49cdfc7eSAndroid Build Coastguard Worker }
51*49cdfc7eSAndroid Build Coastguard Worker }
52*49cdfc7eSAndroid Build Coastguard Worker
53*49cdfc7eSAndroid Build Coastguard Worker static struct tst_test test = {
54*49cdfc7eSAndroid Build Coastguard Worker .needs_root = 1,
55*49cdfc7eSAndroid Build Coastguard Worker .test = run,
56*49cdfc7eSAndroid Build Coastguard Worker .tcnt = ARRAY_SIZE(tcases),
57*49cdfc7eSAndroid Build Coastguard Worker };
58