145 lines
3.1 KiB
C
145 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2019 Linaro Limited. All rights reserved.
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* Author: Rafael David Tinoco <rafael.tinoco@linaro.org>
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*/
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/*
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* Bad argument tests for clock_gettime(2) on multiple clocks:
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*
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* 1) MAX_CLOCKS
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* 2) MAX_CLOCKS + 1
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* 3) CLOCK_REALTIME
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* 4) CLOCK_MONOTONIC
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* 5) CLOCK_PROCESS_CPUTIME_ID
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* 6) CLOCK_THREAD_CPUTIME_ID
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* 7) CLOCK_REALTIME_COARSE
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* 8) CLOCK_MONOTONIC_COARSE
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* 9) CLOCK_MONOTONIC_RAW
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* 10) CLOCK_BOOTTIME
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*/
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#include "config.h"
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#include "time64_variants.h"
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#include "tst_timer.h"
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#include "tst_safe_clocks.h"
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static void *bad_addr;
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struct test_case {
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clockid_t clktype;
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int exp_err;
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int allow_inval;
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};
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static struct test_case tc[] = {
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{
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.clktype = MAX_CLOCKS,
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.exp_err = EINVAL,
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},
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{
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.clktype = MAX_CLOCKS + 1,
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.exp_err = EINVAL,
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},
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/*
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* Different POSIX clocks have different (*clock_get)() handlers.
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* It justifies testing EFAULT for all.
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*/
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{
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.clktype = CLOCK_REALTIME,
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.exp_err = EFAULT,
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},
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{
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.clktype = CLOCK_MONOTONIC,
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.exp_err = EFAULT,
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},
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{
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.clktype = CLOCK_PROCESS_CPUTIME_ID,
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.exp_err = EFAULT,
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},
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{
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.clktype = CLOCK_THREAD_CPUTIME_ID,
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.exp_err = EFAULT,
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},
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{
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.clktype = CLOCK_REALTIME_COARSE,
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.exp_err = EFAULT,
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.allow_inval = 1,
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},
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{
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.clktype = CLOCK_MONOTONIC_COARSE,
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.exp_err = EFAULT,
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.allow_inval = 1,
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},
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{
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.clktype = CLOCK_MONOTONIC_RAW,
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.exp_err = EFAULT,
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.allow_inval = 1,
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},
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{
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.clktype = CLOCK_BOOTTIME,
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.exp_err = EFAULT,
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.allow_inval = 1,
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},
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};
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static struct tst_ts spec;
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/*
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* bad pointer w/ libc causes SIGSEGV signal, call syscall directly
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*/
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static struct time64_variants variants[] = {
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#if (__NR_clock_gettime != __LTP__NR_INVALID_SYSCALL)
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{ .clock_gettime = sys_clock_gettime, .ts_type = TST_KERN_OLD_TIMESPEC, .desc = "syscall with old kernel spec"},
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#endif
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#if (__NR_clock_gettime64 != __LTP__NR_INVALID_SYSCALL)
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{ .clock_gettime = sys_clock_gettime64, .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: %d: %s", tst_variant, variants[tst_variant].desc);
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bad_addr = tst_get_bad_addr(NULL);
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}
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static void verify_clock_gettime(unsigned int i)
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{
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struct time64_variants *tv = &variants[tst_variant];
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void *ts;
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/* bad pointer cases */
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if (tc[i].exp_err == EFAULT) {
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ts = bad_addr;
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} else {
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spec.type = tv->ts_type;
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ts = tst_ts_get(&spec);
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}
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TEST(tv->clock_gettime(tc[i].clktype, ts));
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if (TST_RET != -1) {
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tst_res(TFAIL, "clock_gettime(2): clock %s passed unexpectedly",
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tst_clock_name(tc[i].clktype));
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return;
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}
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if ((tc[i].exp_err == TST_ERR) ||
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(tc[i].allow_inval && TST_ERR == EINVAL)) {
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tst_res(TPASS | TTERRNO, "clock_gettime(2): clock %s failed as expected",
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tst_clock_name(tc[i].clktype));
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} else {
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tst_res(TFAIL | TTERRNO, "clock_gettime(2): clock %s failed unexpectedly",
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tst_clock_name(tc[i].clktype));
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}
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}
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static struct tst_test test = {
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.test = verify_clock_gettime,
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.tcnt = ARRAY_SIZE(tc),
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.test_variants = ARRAY_SIZE(variants),
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.setup = setup,
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.needs_root = 1,
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};
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