1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * Copyright (c) 2017 RedHat. All Rights Reserved.
4 *
5 * Started by Xiong Zhou <[email protected]>
6 */
7
8 /*\
9 * [Description]
10 * Sanity check fanotify_init flag FAN_CLOEXEC by fcntl.
11 */
12
13 #define _GNU_SOURCE
14 #include "config.h"
15
16 #include <stdio.h>
17 #include <sys/stat.h>
18 #include <sys/types.h>
19 #include <errno.h>
20 #include <string.h>
21 #include <sys/syscall.h>
22 #include "tst_test.h"
23
24 #ifdef HAVE_SYS_FANOTIFY_H
25 #include "fanotify.h"
26
27 static int fd_notify;
28
test_init_bit(unsigned int fan_bit,unsigned int fd_bit,char * msg)29 static void test_init_bit(unsigned int fan_bit,
30 unsigned int fd_bit, char *msg)
31 {
32 int ret;
33
34 fd_notify = SAFE_FANOTIFY_INIT(FAN_CLASS_NOTIF|fan_bit, O_RDONLY);
35
36 ret = SAFE_FCNTL(fd_notify, F_GETFD);
37
38 if ((ret & FD_CLOEXEC) == fd_bit)
39 tst_res(TPASS, "%s", msg);
40 else
41 tst_res(TFAIL, "%s", msg);
42
43 SAFE_CLOSE(fd_notify);
44 }
45
run(unsigned int i)46 static void run(unsigned int i)
47 {
48 switch (i) {
49 case 0:
50 test_init_bit(0, 0, "not set close_on_exec");
51 break;
52 case 1:
53 test_init_bit(FAN_CLOEXEC, FD_CLOEXEC, "set close_on_exec");
54 break;
55 }
56 }
57
cleanup(void)58 static void cleanup(void)
59 {
60 if (fd_notify > 0)
61 SAFE_CLOSE(fd_notify);
62 }
63
64 static struct tst_test test = {
65 .test = run,
66 .tcnt = 2,
67 .cleanup = cleanup,
68 .needs_root = 1,
69 };
70
71 #else
72 TST_TEST_TCONF("system doesn't have required fanotify support");
73 #endif
74