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

   1 /*
   2  * Check decoding of fanotify_init syscall.
   3  *
   4  * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
   5  * Copyright (c) 2016-2018 The strace developers.
   6  * All rights reserved.
   7  *
   8  * SPDX-License-Identifier: GPL-2.0-or-later
   9  */
  10
  11 #include "tests.h"
  12
  13 #include <asm/unistd.h>
  14
  15 #if defined __NR_fanotify_init
  16
  17 # include <limits.h>
  18 # include <stdio.h>
  19 # include <unistd.h>
  20
  21 /* Performs fanotify_init call via the syscall interface. */
  22 static void
  23 do_call(kernel_ulong_t flags, const char *flags_str,
  24         kernel_ulong_t event_f_flags, const char *event_f_flags_str)
  25 {
  26         long rc;
  27
  28         rc = syscall(__NR_fanotify_init, flags, event_f_flags);
  29
  30         printf("fanotify_init(%s, %s) = %s\n",
  31                flags_str, event_f_flags_str, sprintrc(rc));
  32 }
  33
  34 struct strval {
  35         kernel_ulong_t val;
  36         const char *str;
  37 };
  38
  39
  40 int
  41 main(void)
  42 {
  43         static const struct strval flags[] = {
  44                 { F8ILL_KULONG_MASK, "FAN_CLASS_NOTIF" },
  45                 { (kernel_ulong_t) 0xffffffff0000000cULL,
  46                         "0xc /* FAN_CLASS_??? */" },
  47                 { (kernel_ulong_t) 0xdec0deddefaced04ULL,
  48                         "FAN_CLASS_CONTENT|0xefaced00 /* FAN_??? */" },
  49                 { (kernel_ulong_t) 0xffffffffffffffffULL,
  50                         "0xc /* FAN_CLASS_??? */|FAN_CLOEXEC|FAN_NONBLOCK|"
  51                         "FAN_UNLIMITED_QUEUE|FAN_UNLIMITED_MARKS|0xffffffc0" },
  52         };
  53         static const struct strval event_f_flags[] = {
  54                 { F8ILL_KULONG_MASK, "O_RDONLY" },
  55                 { (kernel_ulong_t) 0xdeadbeef80000001ULL,
  56                         "O_WRONLY|0x80000000" }
  57         };
  58
  59         unsigned int i;
  60         unsigned int j;
  61
  62
  63         for (i = 0; i < ARRAY_SIZE(flags); i++)
  64                 for (j = 0; j < ARRAY_SIZE(event_f_flags); j++)
  65                         do_call(flags[i].val, flags[i].str,
  66                                 event_f_flags[j].val, event_f_flags[j].str);
  67
  68         puts("+++ exited with 0 +++");
  69         return 0;
  70 }
  71
  72 #else
  73
  74 SKIP_MAIN_UNDEFINED("__NR_fanotify_init")
  75
  76 #endif