1 /*
2 * Copyright (c) 2017 RedHat. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms of version 2 of the GNU General Public License as
6 * published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope that it would be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
11 *
12 * Further, this software is distributed without any warranty that it is
13 * free of the rightful claim of any third person regarding infringement
14 * or the like. Any license provided herein, whether implied or
15 * otherwise, applies only to this software file. Patent licenses, if
16 * any, provided herein do not apply to combinations of this program with
17 * other software, or any other product whatsoever.
18 *
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write the Free Software Foundation, Inc.,
21 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 *
23 * Started by Xiong Zhou <xzhou@redhat.com>
24 *
25 * DESCRIPTION
26 * Sanity check fanotify_init flag FAN_CLOEXEC by fcntl.
27 */
28 #define _GNU_SOURCE
29 #include "config.h"
30
31 #include <stdio.h>
32 #include <sys/stat.h>
33 #include <sys/types.h>
34 #include <fcntl.h>
35 #include <errno.h>
36 #include <string.h>
37 #include <sys/syscall.h>
38 #include "tst_test.h"
39 #include "fanotify.h"
40
41 #if defined(HAVE_SYS_FANOTIFY_H)
42 #include <sys/fanotify.h>
43
44 static int fd_notify;
45
test_init_bit(unsigned int fan_bit,unsigned int fd_bit,char * msg)46 static void test_init_bit(unsigned int fan_bit,
47 unsigned int fd_bit, char *msg)
48 {
49 int ret;
50
51 fd_notify = SAFE_FANOTIFY_INIT(FAN_CLASS_NOTIF|fan_bit, O_RDONLY);
52
53 ret = SAFE_FCNTL(fd_notify, F_GETFD);
54
55 if ((ret & FD_CLOEXEC) == fd_bit) {
56 tst_res(TPASS, "%s", msg);
57 } else {
58 tst_res(TFAIL, "%s", msg);
59 }
60
61 SAFE_CLOSE(fd_notify);
62 }
63
run(unsigned int i)64 static void run(unsigned int i)
65 {
66 switch (i) {
67 case 0:
68 test_init_bit(0, 0, "not set close_on_exec");
69 break;
70 case 1:
71 test_init_bit(FAN_CLOEXEC, FD_CLOEXEC, "set close_on_exec");
72 break;
73 }
74 }
75
cleanup(void)76 static void cleanup(void)
77 {
78 if (fd_notify > 0)
79 SAFE_CLOSE(fd_notify);
80 }
81
82 static struct tst_test test = {
83 .test = run,
84 .tcnt = 2,
85 .cleanup = cleanup,
86 .needs_root = 1,
87 };
88
89 #else
90 TST_TEST_TCONF("system doesn't have required fanotify support");
91 #endif
92