File: fanotify_init.c

package info (click to toggle)
strace 6.13%2Bds-1
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 71,488 kB
  • sloc: ansic: 176,497; sh: 9,675; makefile: 4,133; cpp: 885; awk: 353; perl: 267; exp: 62; sed: 9
file content (67 lines) | stat: -rw-r--r-- 1,763 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
/*
 * Check decoding of fanotify_init syscall.
 *
 * Copyright (c) 2016 Eugene Syromyatnikov <evgsyr@gmail.com>
 * Copyright (c) 2016-2024 The strace developers.
 * All rights reserved.
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#include "tests.h"
#include "scno.h"

#include <limits.h>
#include <stdio.h>
#include <unistd.h>

/* Performs fanotify_init call via the syscall interface. */
static void
do_call(kernel_ulong_t flags, const char *flags_str,
	kernel_ulong_t event_f_flags, const char *event_f_flags_str)
{
	long rc;

	rc = syscall(__NR_fanotify_init, flags, event_f_flags);

	printf("fanotify_init(%s, %s) = %s\n",
	       flags_str, event_f_flags_str, sprintrc(rc));
}

struct strval {
	kernel_ulong_t val;
	const char *str;
};


int
main(void)
{
	static const struct strval flags[] = {
		{ F8ILL_KULONG_MASK, "FAN_CLASS_NOTIF" },
		{ (kernel_ulong_t) 0xffffffff0000000cULL,
			"0xc /* FAN_CLASS_??? */" },
		{ (kernel_ulong_t) 0xdec0deddefacc004ULL,
			"FAN_CLASS_CONTENT|0xefacc000 /* FAN_??? */" },
		{ (kernel_ulong_t) 0xffffffffffffffffULL,
			"0xc /* FAN_CLASS_??? */|FAN_CLOEXEC|FAN_NONBLOCK|"
			"FAN_UNLIMITED_QUEUE|FAN_UNLIMITED_MARKS|"
			"FAN_ENABLE_AUDIT|FAN_REPORT_PIDFD|FAN_REPORT_TID|"
			"FAN_REPORT_FID|FAN_REPORT_DIR_FID|FAN_REPORT_NAME|"
			"FAN_REPORT_TARGET_FID|FAN_REPORT_FD_ERROR|"
			"0xffffc000" },
	};
	static const struct strval event_f_flags[] = {
		{ F8ILL_KULONG_MASK, "O_RDONLY" },
		{ (kernel_ulong_t) 0xdeadbeef80000001ULL,
			"O_WRONLY|0x80000000" }
	};

	for (unsigned int i = 0; i < ARRAY_SIZE(flags); ++i)
		for (unsigned int j = 0; j < ARRAY_SIZE(event_f_flags); ++j)
			do_call(flags[i].val, flags[i].str,
				event_f_flags[j].val, event_f_flags[j].str);

	puts("+++ exited with 0 +++");
	return 0;
}