1 /*
2 * Check decoding of fanotify_init syscall.
3 *
4 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
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
32 #include <asm/unistd.h>
33
34 #if defined __NR_fanotify_init
35
36 # include <limits.h>
37 # include <stdio.h>
38 # include <unistd.h>
39
40 /* Performs fanotify_init call via the syscall interface. */
41 static void
do_call(kernel_ulong_t flags,const char * flags_str,kernel_ulong_t event_f_flags,const char * event_f_flags_str)42 do_call(kernel_ulong_t flags, const char *flags_str,
43 kernel_ulong_t event_f_flags, const char *event_f_flags_str)
44 {
45 long rc;
46
47 rc = syscall(__NR_fanotify_init, flags, event_f_flags);
48
49 printf("fanotify_init(%s, %s) = %s\n",
50 flags_str, event_f_flags_str, sprintrc(rc));
51 }
52
53 struct strval {
54 kernel_ulong_t val;
55 const char *str;
56 };
57
58
59 int
main(void)60 main(void)
61 {
62 static const struct strval flags[] = {
63 { (kernel_ulong_t) 0xffffffff00000000ULL, "FAN_CLASS_NOTIF" },
64 { (kernel_ulong_t) 0xffffffff0000000cULL,
65 "0xc /* FAN_CLASS_??? */" },
66 { (kernel_ulong_t) 0xdec0deddefaced04ULL,
67 "FAN_CLASS_CONTENT|0xefaced00 /* FAN_??? */" },
68 { (kernel_ulong_t) 0xffffffffffffffffULL,
69 "0xc /* FAN_CLASS_??? */|FAN_CLOEXEC|FAN_NONBLOCK|"
70 "FAN_UNLIMITED_QUEUE|FAN_UNLIMITED_MARKS|0xffffffc0" },
71 };
72 static const struct strval event_f_flags[] = {
73 { (kernel_ulong_t) 0xffffffff00000000ULL, "O_RDONLY" },
74 { (kernel_ulong_t) 0xdeadbeef80000001ULL,
75 "O_WRONLY|0x80000000" }
76 };
77
78 unsigned int i;
79 unsigned int j;
80
81
82 for (i = 0; i < ARRAY_SIZE(flags); i++)
83 for (j = 0; j < ARRAY_SIZE(event_f_flags); j++)
84 do_call(flags[i].val, flags[i].str,
85 event_f_flags[j].val, event_f_flags[j].str);
86
87 puts("+++ exited with 0 +++");
88 return 0;
89 }
90
91 #else
92
93 SKIP_MAIN_UNDEFINED("__NR_fanotify_init")
94
95 #endif
96