154 lines
4.5 KiB
C
154 lines
4.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) Wipro Technologies Ltd, 2003. All Rights Reserved.
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*
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* Author: Aniruddha Marathe <aniruddha.marathe@wipro.com>
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*
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* Ported to new library:
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* 07/2019 Christian Amann <camann@suse.com>
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*/
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/*
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* This tests basic error handling of the timer_settime(2) syscall:
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*
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* 1) Setting pointer to new settings to NULL -> EINVAL
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* 2) Setting tv_nsec of the itimerspec structure to a negative value
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* -> EINVAL
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* 3) Setting tv_nsec of the itimerspec structure to something larger
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* than NSEC_PER_SEC -> EINVAL
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* 4) Passing an invalid timer -> EINVAL
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* 5) Passing an invalid address for new_value -> EFAULT
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* 6) Passing an invalid address for old_value -> EFAULT
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*
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* This is also regression test for commit:
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* f18ddc13af98 ("alarmtimer: Use EOPNOTSUPP instead of ENOTSUPP")
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*/
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#include <errno.h>
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#include <time.h>
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#include "time64_variants.h"
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#include "tst_timer.h"
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static struct tst_its new_set, old_set;
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static struct tst_its *pnew_set = &new_set, *pold_set = &old_set, *null_set = NULL;
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static void *faulty_set;
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static kernel_timer_t timer;
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static kernel_timer_t timer_inval = (kernel_timer_t)-1;
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/* separate description-array to (hopefully) improve readability */
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static const char * const descriptions[] = {
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"setting new_set pointer to NULL",
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"setting tv_nsec to a negative value",
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"setting tv_nsec value too high",
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"passing pointer to invalid timer_id",
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"passing invalid address for new_value",
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"passing invalid address for old_value",
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};
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static struct testcase {
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kernel_timer_t *timer_id;
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struct tst_its **new_ptr;
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struct tst_its **old_ptr;
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int it_value_tv_nsec;
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int error;
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} tcases[] = {
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{&timer, &null_set, &pold_set, 0, EINVAL},
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{&timer, &pnew_set, &pold_set, -1, EINVAL},
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{&timer, &pnew_set, &pold_set, NSEC_PER_SEC + 1, EINVAL},
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{&timer_inval, &pnew_set, &pold_set, 0, EINVAL},
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{&timer, (struct tst_its **)&faulty_set, &pold_set, 0, EFAULT},
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{&timer, &pnew_set, (struct tst_its **)&faulty_set, 0, EFAULT},
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};
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static struct time64_variants variants[] = {
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#if (__NR_timer_settime != __LTP__NR_INVALID_SYSCALL)
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{ .timer_settime = sys_timer_settime, .ts_type = TST_KERN_OLD_TIMESPEC, .desc = "syscall with old kernel spec"},
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#endif
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#if (__NR_timer_settime64 != __LTP__NR_INVALID_SYSCALL)
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{ .timer_settime = sys_timer_settime64, .ts_type = TST_KERN_TIMESPEC, .desc = "syscall time64 with kernel spec"},
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#endif
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};
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static void setup(void)
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{
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tst_res(TINFO, "Testing variant: %s", variants[tst_variant].desc);
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faulty_set = tst_get_bad_addr(NULL);
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}
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static void run(unsigned int n)
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{
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struct time64_variants *tv = &variants[tst_variant];
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struct testcase *tc = &tcases[n];
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void *new, *old;
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unsigned int i;
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tst_res(TINFO, "Testing for %s:", descriptions[n]);
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for (i = 0; i < CLOCKS_DEFINED; ++i) {
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clock_t clock = clock_list[i];
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if (clock == CLOCK_PROCESS_CPUTIME_ID ||
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clock == CLOCK_THREAD_CPUTIME_ID) {
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if (!have_cputime_timers())
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continue;
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}
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/* Init temporary timer */
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TEST(tst_syscall(__NR_timer_create, clock, NULL, &timer));
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if (TST_RET != 0) {
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if (possibly_unsupported(clock) &&
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(TST_ERR == EINVAL || TST_ERR == ENOTSUP)) {
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tst_res(TCONF | TTERRNO, "%s unsupported",
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get_clock_str(clock));
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} else {
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tst_res(TFAIL | TTERRNO,
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"timer_create(%s) failed",
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get_clock_str(clock));
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}
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continue;
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}
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memset(&new_set, 0, sizeof(new_set));
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memset(&old_set, 0, sizeof(old_set));
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new_set.type = old_set.type = tv->ts_type;
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tst_its_set_interval_sec(&new_set, 0);
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tst_its_set_interval_nsec(&new_set, 0);
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tst_its_set_value_sec(&new_set, 5);
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tst_its_set_value_nsec(&new_set, tc->it_value_tv_nsec);
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new = (tc->new_ptr == (struct tst_its **)&faulty_set) ? faulty_set : tst_its_get(*tc->new_ptr);
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old = (tc->old_ptr == (struct tst_its **)&faulty_set) ? faulty_set : tst_its_get(*tc->old_ptr);
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TEST(tv->timer_settime(*tc->timer_id, 0, new, old));
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if (tc->error != TST_ERR) {
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tst_res(TFAIL | TTERRNO,
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"%s didn't fail as expected. Expected: %s - Got",
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get_clock_str(clock),
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tst_strerrno(tc->error));
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} else {
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tst_res(TPASS | TTERRNO,
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"%s failed as expected",
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get_clock_str(clock));
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}
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/* Delete temporary timer */
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TEST(tst_syscall(__NR_timer_delete, timer));
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if (TST_RET != 0)
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tst_res(TFAIL | TTERRNO, "timer_delete() failed!");
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}
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}
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static struct tst_test test = {
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.test = run,
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.needs_root = 1,
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.tcnt = ARRAY_SIZE(tcases),
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.test_variants = ARRAY_SIZE(variants),
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.setup = setup,
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.tags = (const struct tst_tag[]) {
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{"linux-git", "f18ddc13af98"},
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{}
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}
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};
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