1 /*
2 * Check decoding of fanotify_init syscall.
3 *
4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
5 * Copyright (c) 2016-2017 The strace developers.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "tests.h"
32
33 #include <asm/unistd.h>
34
35 #if defined __NR_fanotify_init
36
37 # include <limits.h>
38 # include <stdio.h>
39 # include <unistd.h>
40
41 /* Performs fanotify_init call via the syscall interface. */
42 static void
do_call(kernel_ulong_t flags,const char * flags_str,kernel_ulong_t event_f_flags,const char * event_f_flags_str)43 do_call(kernel_ulong_t flags, const char *flags_str,
44 kernel_ulong_t event_f_flags, const char *event_f_flags_str)
45 {
46 long rc;
47
48 rc = syscall(__NR_fanotify_init, flags, event_f_flags);
49
50 printf("fanotify_init(%s, %s) = %s\n",
51 flags_str, event_f_flags_str, sprintrc(rc));
52 }
53
54 struct strval {
55 kernel_ulong_t val;
56 const char *str;
57 };
58
59
60 int
main(void)61 main(void)
62 {
63 static const struct strval flags[] = {
64 { F8ILL_KULONG_MASK, "FAN_CLASS_NOTIF" },
65 { (kernel_ulong_t) 0xffffffff0000000cULL,
66 "0xc /* FAN_CLASS_??? */" },
67 { (kernel_ulong_t) 0xdec0deddefaced04ULL,
68 "FAN_CLASS_CONTENT|0xefaced00 /* FAN_??? */" },
69 { (kernel_ulong_t) 0xffffffffffffffffULL,
70 "0xc /* FAN_CLASS_??? */|FAN_CLOEXEC|FAN_NONBLOCK|"
71 "FAN_UNLIMITED_QUEUE|FAN_UNLIMITED_MARKS|0xffffffc0" },
72 };
73 static const struct strval event_f_flags[] = {
74 { F8ILL_KULONG_MASK, "O_RDONLY" },
75 { (kernel_ulong_t) 0xdeadbeef80000001ULL,
76 "O_WRONLY|0x80000000" }
77 };
78
79 unsigned int i;
80 unsigned int j;
81
82
83 for (i = 0; i < ARRAY_SIZE(flags); i++)
84 for (j = 0; j < ARRAY_SIZE(event_f_flags); j++)
85 do_call(flags[i].val, flags[i].str,
86 event_f_flags[j].val, event_f_flags[j].str);
87
88 puts("+++ exited with 0 +++");
89 return 0;
90 }
91
92 #else
93
94 SKIP_MAIN_UNDEFINED("__NR_fanotify_init")
95
96 #endif
97