1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2021, BELLSOFT. All rights reserved.
4 * Copyright (c) Wipro Technologies Ltd, 2002. All Rights Reserved.
5 * AUTHOR: Saji Kumar.V.R <saji.kumar@wipro.com>
6 */
7
8 /*\
9 * [Description]
10 *
11 * Verify that:
12 * 1. sched_setparam(2) returns -1 and sets errno to ESRCH if the
13 * process with specified pid could not be found
14 * 2. sched_setparam(2) returns -1 and sets errno to EINVAL if
15 * the parameter pid is an invalid value (-1)
16 * 3. sched_setparam(2) returns -1 and sets errno to EINVAL if the
17 * parameter p is an invalid address
18 * 4. sched_setparam(2) returns -1 sets errno to EINVAL if the
19 * value for p.sched_priority is other than 0 for scheduling
20 * policy, SCHED_OTHER
21 */
22
23 #include "tst_test.h"
24 #include "tst_sched.h"
25
26 static struct sched_param p = { .sched_priority = 0 };
27 static struct sched_param p1 = { .sched_priority = 1 };
28
29 static pid_t unused_pid;
30 static pid_t inval_pid = -1;
31 static pid_t zero_pid;
32
33 static struct test_cases_t {
34 char *desc;
35 pid_t *pid;
36 struct sched_param *p;
37 int exp_errno;
38 } tcases[] = {
39 {
40 "test with non-existing pid", &unused_pid, &p, ESRCH}, {
41 "test invalid pid value", &inval_pid, &p, EINVAL,}, {
42 "test with invalid address for p", &zero_pid, NULL, EINVAL}, {
43 "test with invalid p.sched_priority", &zero_pid, &p1, EINVAL}
44 };
45
setup(void)46 static void setup(void)
47 {
48 tst_res(TINFO, "Testing %s variant", sched_variants[tst_variant].desc);
49
50 unused_pid = tst_get_unused_pid();
51 }
52
run(unsigned int n)53 static void run(unsigned int n)
54 {
55 struct sched_variant *tv = &sched_variants[tst_variant];
56 struct test_cases_t *tc = &tcases[n];
57
58 TST_EXP_FAIL(tv->sched_setparam(*tc->pid, tc->p), tc->exp_errno, "%s", tc->desc);
59 }
60
61 static struct tst_test test = {
62 .setup = setup,
63 .test = run,
64 .test_variants = ARRAY_SIZE(sched_variants),
65 .tcnt = ARRAY_SIZE(tcases),
66 };
67