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  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. The name of the author may not be used to endorse or promote products
  16  *    derived from this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
  19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
  21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
  22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  23  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  27  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28  */
  29
  30 #include "tests.h"
  31 #include <stdio.h>
  32 #include <stdint.h>
  33 #include <sys/time.h>
  34 #include <unistd.h>
  35 #include <asm/unistd.h>
  36
  37 int
  38 main(void)
  39 {
  40         static const struct itimerval new = {
  41                 .it_interval = { 0xc0de1, 0xc0de2 },
  42                 .it_value = { 0xc0de3, 0xc0de4 }
  43         };
  44         static const kernel_ulong_t long_timer =
  45                 F8ILL_KULONG_MASK | ITIMER_REAL;
  46         static const kernel_ulong_t bogus_timer =
  47                 (kernel_ulong_t) 0xfacefeeddeadbeefULL;
  48
  49         TAIL_ALLOC_OBJECT_CONST_PTR(struct itimerval, p_old);
  50         struct itimerval *const p_new = tail_memdup(&new, sizeof(new));
  51         void *const efault = tail_alloc(sizeof(new) - 8);
  52         long rc;
  53
  54         if (setitimer(ITIMER_REAL, p_new, NULL))
  55                 perror_msg_and_skip("setitimer");
  56         printf("setitimer(ITIMER_REAL"
  57                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  58                ", it_value={tv_sec=%lld, tv_usec=%llu}}"
  59                ", NULL) = 0\n",
  60                (long long) new.it_interval.tv_sec,
  61                zero_extend_signed_to_ull(new.it_interval.tv_usec),
  62                (long long) new.it_value.tv_sec,
  63                zero_extend_signed_to_ull(new.it_value.tv_usec));
  64
  65         fill_memory(p_old, sizeof(*p_old));
  66         if (getitimer(ITIMER_REAL, p_old))
  67                 perror_msg_and_skip("getitimer");
  68         printf("getitimer(ITIMER_REAL"
  69                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  70                ", it_value={tv_sec=%lld, tv_usec=%llu}}) = 0\n",
  71                (long long) p_old->it_interval.tv_sec,
  72                zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
  73                (long long) p_old->it_value.tv_sec,
  74                zero_extend_signed_to_ull(p_old->it_value.tv_usec));
  75
  76         fill_memory(p_old, sizeof(*p_old));
  77         setitimer(ITIMER_REAL, p_new, p_old);
  78         printf("setitimer(ITIMER_REAL"
  79                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  80                ", it_value={tv_sec=%lld, tv_usec=%llu}}"
  81                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  82                ", it_value={tv_sec=%lld, tv_usec=%llu}}) = 0\n",
  83                (long long) new.it_interval.tv_sec,
  84                zero_extend_signed_to_ull(new.it_interval.tv_usec),
  85                (long long) new.it_value.tv_sec,
  86                zero_extend_signed_to_ull(new.it_value.tv_usec),
  87                (long long) p_old->it_interval.tv_sec,
  88                zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
  89                (long long) p_old->it_value.tv_sec,
  90                zero_extend_signed_to_ull(p_old->it_value.tv_usec));
  91
  92         rc = getitimer(ITIMER_REAL, efault);
  93         printf("getitimer(ITIMER_REAL, %p) = %s\n", efault, sprintrc(rc));
  94
  95         rc = setitimer(ITIMER_REAL, p_new, efault);
  96         printf("setitimer(ITIMER_REAL"
  97                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
  98                ", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n",
  99                (long long) new.it_interval.tv_sec,
 100                zero_extend_signed_to_ull(new.it_interval.tv_usec),
 101                (long long) new.it_value.tv_sec,
 102                zero_extend_signed_to_ull(new.it_value.tv_usec),
 103                efault, sprintrc(rc));
 104
 105         rc = setitimer(ITIMER_REAL, efault, p_old);
 106         printf("setitimer(ITIMER_REAL, %p, %p) = %s\n",
 107                efault, p_old, sprintrc(rc));
 108
 109         fill_memory(p_old, sizeof(*p_old));
 110         rc = syscall(__NR_setitimer, long_timer, p_new, p_old);
 111         printf("setitimer(ITIMER_REAL"
 112                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
 113                ", it_value={tv_sec=%lld, tv_usec=%llu}}"
 114                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
 115                ", it_value={tv_sec=%lld, tv_usec=%llu}}) = %s\n",
 116                (long long) new.it_interval.tv_sec,
 117                zero_extend_signed_to_ull(new.it_interval.tv_usec),
 118                (long long) new.it_value.tv_sec,
 119                zero_extend_signed_to_ull(new.it_value.tv_usec),
 120                (long long) p_old->it_interval.tv_sec,
 121                zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
 122                (long long) p_old->it_value.tv_sec,
 123                zero_extend_signed_to_ull(p_old->it_value.tv_usec),
 124                sprintrc(rc));
 125
 126         fill_memory(p_old, sizeof(*p_old));
 127         rc = syscall(__NR_getitimer, long_timer, p_old);
 128         printf("getitimer(ITIMER_REAL"
 129                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
 130                ", it_value={tv_sec=%lld, tv_usec=%llu}}) = %s\n",
 131                (long long) p_old->it_interval.tv_sec,
 132                zero_extend_signed_to_ull(p_old->it_interval.tv_usec),
 133                (long long) p_old->it_value.tv_sec,
 134                zero_extend_signed_to_ull(p_old->it_value.tv_usec),
 135                sprintrc(rc));
 136
 137         rc = syscall(__NR_setitimer, bogus_timer, p_new, p_old);
 138         printf("setitimer(%#x /* ITIMER_??? */"
 139                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
 140                ", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n",
 141                (int) bogus_timer,
 142                (long long) new.it_interval.tv_sec,
 143                zero_extend_signed_to_ull(new.it_interval.tv_usec),
 144                (long long) new.it_value.tv_sec,
 145                zero_extend_signed_to_ull(new.it_value.tv_usec),
 146                p_old, sprintrc(rc));
 147
 148         rc = syscall(__NR_getitimer, bogus_timer, p_old);
 149         printf("getitimer(%#x /* ITIMER_??? */, %p) = %s\n",
 150                (int) bogus_timer, p_old, sprintrc(rc));
 151
 152         if (F8ILL_KULONG_SUPPORTED) {
 153                 const kernel_ulong_t ill_new = f8ill_ptr_to_kulong(p_new);
 154                 const kernel_ulong_t ill_old = f8ill_ptr_to_kulong(p_old);
 155
 156                 rc = syscall(__NR_setitimer, long_timer, ill_new, ill_old);
 157                 printf("setitimer(ITIMER_REAL, %#llx, %#llx) = %s\n",
 158                        (unsigned long long) ill_new,
 159                        (unsigned long long) ill_old,
 160                        sprintrc(rc));
 161
 162                 rc = syscall(__NR_getitimer, long_timer, ill_old);
 163                 printf("getitimer(ITIMER_REAL, %#llx) = %s\n",
 164                        (unsigned long long) ill_old, sprintrc(rc));
 165         }
 166
 167         p_new->it_interval.tv_sec = 0xdeadbeefU;
 168         p_new->it_interval.tv_usec = 0xfacefeedU;
 169         p_new->it_value.tv_sec = (time_t) 0xcafef00ddeadbeefLL;
 170         p_new->it_value.tv_usec = (long) 0xbadc0dedfacefeedLL;
 171
 172         rc = setitimer(ITIMER_REAL, p_new, p_old);
 173         printf("setitimer(ITIMER_REAL"
 174                ", {it_interval={tv_sec=%lld, tv_usec=%llu}"
 175                ", it_value={tv_sec=%lld, tv_usec=%llu}}, %p) = %s\n",
 176                (long long) p_new->it_interval.tv_sec,
 177                zero_extend_signed_to_ull(p_new->it_interval.tv_usec),
 178                (long long) p_new->it_value.tv_sec,
 179                zero_extend_signed_to_ull(p_new->it_value.tv_usec),
 180                p_old, sprintrc(rc));
 181
 182         puts("+++ exited with 0 +++");
 183         return 0;
 184 }