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1 /*-
2  * Copyright (c) 2016 Chelsio Communications, Inc.
3  * All rights reserved.
4  * Written by: John Baldwin <jhb@FreeBSD.org>
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27
28 #ifndef _AIO_TEST_LOCAL_H_
29 #define _AIO_TEST_LOCAL_H_
30
31 #include <sys/types.h>
32 #include <sys/sysctl.h>
33 #include <errno.h>
34 #include <stdio.h>
35 #include <string.h>
36 #include <unistd.h>
37
38 #include <atf-c.h>
39
40 static const char       *sysctl_oid_name = "vfs.aio.enable_unsafe";
41
42 static int
43 is_unsafe_aio_enabled(void)
44 {
45         size_t len;
46         int unsafe;
47
48         len = sizeof(unsafe);
49         if (sysctlbyname(sysctl_oid_name, &unsafe, &len, NULL, 0) < 0) {
50                 if (errno == ENOENT)
51                         return (-1);
52                 return (0);
53         }
54         return (unsafe == 0 ? 0 : 1);
55 }
56
57 #define ATF_REQUIRE_UNSAFE_AIO() do {                                           \
58         switch (is_unsafe_aio_enabled()) {                                      \
59         case -1:                                                                \
60                 atf_libc_error(errno, "Failed to read %s", sysctl_oid_name);    \
61                 break;                                                          \
62         case 0:                                                                 \
63                 atf_tc_skip("Unsafe AIO is disabled");                          \
64                 break;                                                          \
65         default:                                                                \
66                 printf("Unsafe AIO is enabled\n");                              \
67                 break;                                                          \
68         }                                                                       \
69 } while (0)
70
71 #define PLAIN_REQUIRE_UNSAFE_AIO(_exit_code) do {                               \
72         switch (is_unsafe_aio_enabled()) {                                      \
73         case -1:                                                                \
74                 printf("Failed to read %s", sysctl_oid_name);                   \
75                 _exit(_exit_code);                                              \
76                 break;                                                          \
77         case 0:                                                                 \
78                 printf("Unsafe AIO is disabled\n");                             \
79                 _exit(_exit_code);                                              \
80                 break;                                                          \
81         default:                                                                \
82                 printf("Unsafe AIO is enabled\n");                              \
83                 break;                                                          \
84         }                                                                       \
85 } while (0)
86
87 #endif /* !_AIO_TEST_LOCAL_H_ */