granicus.if.org Git - strace/blob - tests/xetitimer.c

   1 /*
   2  * Check decoding of setitimer and getitimer syscalls.
   3  *
   4  * Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org>
   5  * All rights reserved.
   6  *
   7  * SPDX-License-Identifier: GPL-2.0-or-later
   8  */
   9
  10 #include "tests.h"
  11 #include <stdio.h>
  12 #include <stdint.h>
  13 #include <sys/time.h>
  14 #include <unistd.h>
  15 #include <asm/unistd.h>
  16
  17 int
  18 main(void)
  19 {
  20         static const struct itimerval new = {
  21                 .it_interval = { 0xc0de1, 0xc0de2 },
  22                 .it_value = { 0xc0de3, 0xc0de4 }
  23         };
  24         static const kernel_ulong_t long_timer =
  25                 F8ILL_KULONG_MASK | ITIMER_REAL;
  26         static const kernel_ulong_t bogus_timer =
  27                 (kernel_ulong_t) 0xfacefeeddeadbeefULL;
  28
  29         TAIL_ALLOC_OBJECT_CONST_PTR(struct itimerval, p_old);
  30         struct itimerval *const p_new = tail_memdup(&new, sizeof(new));
  31         void *const efault = tail_alloc(sizeof(new) - 8);
  32         long rc;
  33
  34         if (setitimer(ITIMER_REAL, p_new, NULL))
  35                 perror_msg_and_skip("setitimer");
  36         printf("setitimer(ITIMER_REAL"
  37                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  38                ", it_value={tv_sec=%lld, tv_usec=%llu}}"
  39                ", NULL) = 0\n",
  40                (long long) new.it_interval.tv_sec,
  41                zero_extend_signed_to_ull(new.it_interval.tv_usec),
  42                (long long) new.it_value.tv_sec,
  43                zero_extend_signed_to_ull(new.it_value.tv_usec));
  44
  45         fill_memory(p_old, sizeof(*p_old));
  46         if (getitimer(ITIMER_REAL, p_old))
  47                 perror_msg_and_skip("getitimer");
  48         printf("getitimer(ITIMER_REAL"
  49                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  50                ", it_value={tv_sec=%lld, tv_usec=%llu}}) = 0\n",
  51                (long long) p_old->it_interval.tv_sec,
  52                zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
  53                (long long) p_old->it_value.tv_sec,
  54                zero_extend_signed_to_ull(p_old->it_value.tv_usec));
  55
  56         fill_memory(p_old, sizeof(*p_old));
  57         setitimer(ITIMER_REAL, p_new, p_old);
  58         printf("setitimer(ITIMER_REAL"
  59                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  60                ", it_value={tv_sec=%lld, tv_usec=%llu}}"
  61                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  62                ", it_value={tv_sec=%lld, tv_usec=%llu}}) = 0\n",
  63                (long long) new.it_interval.tv_sec,
  64                zero_extend_signed_to_ull(new.it_interval.tv_usec),
  65                (long long) new.it_value.tv_sec,
  66                zero_extend_signed_to_ull(new.it_value.tv_usec),
  67                (long long) p_old->it_interval.tv_sec,
  68                zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
  69                (long long) p_old->it_value.tv_sec,
  70                zero_extend_signed_to_ull(p_old->it_value.tv_usec));
  71
  72         rc = getitimer(ITIMER_REAL, efault);
  73         printf("getitimer(ITIMER_REAL, %p) = %s\n", efault, sprintrc(rc));
  74
  75         rc = setitimer(ITIMER_REAL, p_new, efault);
  76         printf("setitimer(ITIMER_REAL"
  77                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  78                ", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n",
  79                (long long) new.it_interval.tv_sec,
  80                zero_extend_signed_to_ull(new.it_interval.tv_usec),
  81                (long long) new.it_value.tv_sec,
  82                zero_extend_signed_to_ull(new.it_value.tv_usec),
  83                efault, sprintrc(rc));
  84
  85         rc = setitimer(ITIMER_REAL, efault, p_old);
  86         printf("setitimer(ITIMER_REAL, %p, %p) = %s\n",
  87                efault, p_old, sprintrc(rc));
  88
  89         fill_memory(p_old, sizeof(*p_old));
  90         rc = syscall(__NR_setitimer, long_timer, p_new, p_old);
  91         printf("setitimer(ITIMER_REAL"
  92                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  93                ", it_value={tv_sec=%lld, tv_usec=%llu}}"
  94                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  95                ", it_value={tv_sec=%lld, tv_usec=%llu}}) = %s\n",
  96                (long long) new.it_interval.tv_sec,
  97                zero_extend_signed_to_ull(new.it_interval.tv_usec),
  98                (long long) new.it_value.tv_sec,
  99                zero_extend_signed_to_ull(new.it_value.tv_usec),
 100                (long long) p_old->it_interval.tv_sec,
 101                zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
 102                (long long) p_old->it_value.tv_sec,
 103                zero_extend_signed_to_ull(p_old->it_value.tv_usec),
 104                sprintrc(rc));
 105
 106         fill_memory(p_old, sizeof(*p_old));
 107         rc = syscall(__NR_getitimer, long_timer, p_old);
 108         printf("getitimer(ITIMER_REAL"
 109                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
 110                ", it_value={tv_sec=%lld, tv_usec=%llu}}) = %s\n",
 111                (long long) p_old->it_interval.tv_sec,
 112                zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
 113                (long long) p_old->it_value.tv_sec,
 114                zero_extend_signed_to_ull(p_old->it_value.tv_usec),
 115                sprintrc(rc));
 116
 117         rc = syscall(__NR_setitimer, bogus_timer, p_new, p_old);
 118         printf("setitimer(%#x /* ITIMER_??? */"
 119                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
 120                ", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n",
 121                (int) bogus_timer,
 122                (long long) new.it_interval.tv_sec,
 123                zero_extend_signed_to_ull(new.it_interval.tv_usec),
 124                (long long) new.it_value.tv_sec,
 125                zero_extend_signed_to_ull(new.it_value.tv_usec),
 126                p_old, sprintrc(rc));
 127
 128         rc = syscall(__NR_getitimer, bogus_timer, p_old);
 129         printf("getitimer(%#x /* ITIMER_??? */, %p) = %s\n",
 130                (int) bogus_timer, p_old, sprintrc(rc));
 131
 132         if (F8ILL_KULONG_SUPPORTED) {
 133                 const kernel_ulong_t ill_new = f8ill_ptr_to_kulong(p_new);
 134                 const kernel_ulong_t ill_old = f8ill_ptr_to_kulong(p_old);
 135
 136                 rc = syscall(__NR_setitimer, long_timer, ill_new, ill_old);
 137                 printf("setitimer(ITIMER_REAL, %#llx, %#llx) = %s\n",
 138                        (unsigned long long) ill_new,
 139                        (unsigned long long) ill_old,
 140                        sprintrc(rc));
 141
 142                 rc = syscall(__NR_getitimer, long_timer, ill_old);
 143                 printf("getitimer(ITIMER_REAL, %#llx) = %s\n",
 144                        (unsigned long long) ill_old, sprintrc(rc));
 145         }
 146
 147         p_new->it_interval.tv_sec = 0xdeadbeefU;
 148         p_new->it_interval.tv_usec = 0xfacefeedU;
 149         p_new->it_value.tv_sec = (time_t) 0xcafef00ddeadbeefLL;
 150         p_new->it_value.tv_usec = (suseconds_t) 0xbadc0dedfacefeedLL;
 151
 152         rc = setitimer(ITIMER_REAL, p_new, p_old);
 153         printf("setitimer(ITIMER_REAL"
 154                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
 155                ", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n",
 156                (long long) p_new->it_interval.tv_sec,
 157                zero_extend_signed_to_ull(p_new->it_interval.tv_usec),
 158                (long long) p_new->it_value.tv_sec,
 159                zero_extend_signed_to_ull(p_new->it_value.tv_usec),
 160                p_old, sprintrc(rc));
 161
 162         puts("+++ exited with 0 +++");
 163         return 0;
 164 }