80 lines
2.0 KiB
C
80 lines
2.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2021, BELLSOFT. All rights reserved.
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* Copyright (c) International Business Machines Corp., 2001
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*/
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/*\
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* [Description]
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*
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* Testcase to test whether sched_setscheduler(2) sets the errnos
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* correctly.
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*
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* [Algorithm]
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*
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* 1. Call sched_setscheduler with an invalid pid, and expect
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* ESRCH to be returned.
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* 2. Call sched_setscheduler with an invalid scheduling policy,
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* and expect EINVAL to be returned.
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* 3. Call sched_setscheduler with an invalid "param" address,
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* which lies outside the address space of the process, and expect
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* EFAULT to be returned.
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* 4. Call sched_setscheduler with an invalid priority value
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* in "param" and expect EINVAL to be returned
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <pwd.h>
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#include "tst_test.h"
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#include "tst_sched.h"
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#define SCHED_INVALID 99
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static struct sched_param p;
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static struct sched_param p1 = { .sched_priority = 1 };
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static pid_t unused_pid;
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static pid_t init_pid = 1;
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static pid_t zero_pid;
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struct test_cases_t {
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pid_t *pid;
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int policy;
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struct sched_param *p;
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int error;
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} tcases[] = {
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/* The pid is invalid - ESRCH */
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{&unused_pid, SCHED_OTHER, &p, ESRCH},
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/* The policy is invalid - EINVAL */
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{&init_pid, SCHED_INVALID, &p, EINVAL},
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/* The param address is invalid - EFAULT */
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{&init_pid, SCHED_OTHER, (struct sched_param *)-1, EFAULT},
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/* The priority value in param invalid - EINVAL */
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{&zero_pid, SCHED_OTHER, &p1, EINVAL}
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};
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static void setup(void)
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{
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tst_res(TINFO, "Testing %s variant", sched_variants[tst_variant].desc);
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unused_pid = tst_get_unused_pid();
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}
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static void run(unsigned int n)
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{
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struct sched_variant *tv = &sched_variants[tst_variant];
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struct test_cases_t *tc = &tcases[n];
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TST_EXP_FAIL(tv->sched_setscheduler(*tc->pid, tc->policy, tc->p),
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tc->error, "sched_setscheduler(%d, %d, %p)",
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*tc->pid, tc->policy, tc->p);
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}
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static struct tst_test test = {
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.setup = setup,
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.test_variants = ARRAY_SIZE(sched_variants),
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.tcnt = ARRAY_SIZE(tcases),
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.test = run,
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};
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