63 lines
1.2 KiB
C
63 lines
1.2 KiB
C
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// 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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* Call sched_setscheduler as a non-root uid, and expect EPERM
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* to be returned.
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*
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*/
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#include <stdlib.h>
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#include <errno.h>
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#include <pwd.h>
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#include <sys/types.h>
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#include "tst_test.h"
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#include "tst_sched.h"
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static uid_t nobody_uid;
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static void setup(void)
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{
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struct passwd *pw = SAFE_GETPWNAM("nobody");
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tst_res(TINFO, "Testing %s variant", sched_variants[tst_variant].desc);
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nobody_uid = pw->pw_uid;
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}
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static void run(void)
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{
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struct sched_variant *tv = &sched_variants[tst_variant];
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pid_t pid = SAFE_FORK();
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if (!pid) {
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struct sched_param p = { .sched_priority = 1 };
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SAFE_SETEUID(nobody_uid);
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TST_EXP_FAIL(tv->sched_setscheduler(0, SCHED_FIFO, &p), EPERM,
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"sched_setscheduler(0, SCHED_FIFO, %d)",
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p.sched_priority);
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exit(0);
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}
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tst_reap_children();
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}
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static struct tst_test test = {
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.forks_child = 1,
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.needs_root = 1,
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.setup = setup,
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.test_variants = ARRAY_SIZE(sched_variants),
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.test_all = run,
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};
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