xref: /dragonfly/sys/vfs/autofs/autofs_ioctl.h (revision 2dac8a3e)
1 /*-
2  * Copyright (c) 2016 Tomohiro Kusumi <tkusumi@netbsd.org>
3  * Copyright (c) 2016 The DragonFly Project
4  * Copyright (c) 2013 The FreeBSD Foundation
5  * All rights reserved.
6  *
7  * This software was developed by Edward Tomasz Napierala under sponsorship
8  * from the FreeBSD Foundation.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice, this list of conditions and the following disclaimer.
15  * 2. Redistributions in binary form must reproduce the above copyright
16  *    notice, this list of conditions and the following disclaimer in the
17  *    documentation and/or other materials provided with the distribution.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  * $FreeBSD$
32  */
33 
34 #ifndef AUTOFS_IOCTL_H
35 #define AUTOFS_IOCTL_H
36 
37 #include <sys/param.h>
38 #include <sys/ioccom.h>
39 
40 #define AUTOFS_PATH	"/dev/autofs"
41 
42 struct autofs_daemon_request {
43 	/*
44 	 * Request identifier.
45 	 */
46 	int		adr_id;
47 
48 	/*
49 	 * The "from" field, containing map name.  For example,
50 	 * when accessing '/net/192.168.1.3/tank/vm/', that would
51 	 * be '-hosts'.
52 	 */
53 	char		adr_from[MAXPATHLEN];
54 
55 	/*
56 	 * Full path to the node being looked up; for requests that result
57 	 * in actual mount it is the full mount path.
58 	 */
59 	char		adr_path[MAXPATHLEN];
60 
61 	/*
62 	 * Prefix, which is basically the mountpoint from auto_master(5).
63 	 * In example above that would be "/net"; for direct maps it is "/".
64 	 */
65 	char		adr_prefix[MAXPATHLEN];
66 
67 	/*
68 	 * Map key, also used as command argument for dynamic maps; in example
69 	 * above that would be '192.168.1.3'.
70 	 */
71 	char		adr_key[MAXPATHLEN];
72 
73 	/*
74 	 * Mount options from auto_master(5).
75 	 */
76 	char		adr_options[MAXPATHLEN];
77 };
78 
79 struct autofs_daemon_done {
80 	/*
81 	 * Identifier, copied from adr_id.
82 	 */
83 	int		add_id;
84 
85 	/*
86 	 * Set to 1 if the map may contain wildcard entries;
87 	 * otherwise autofs will do negative caching.
88 	 */
89 	int		add_wildcards;
90 
91 	/*
92 	 * Error number, possibly returned to userland.
93 	 */
94 	int		add_error;
95 
96 	/*
97 	 * Reserved for future use.
98 	 */
99 	int		add_spare[7];
100 };
101 
102 #define AUTOFSREQUEST	_IOR('I', 0x01, struct autofs_daemon_request)
103 #define AUTOFSDONE	_IOW('I', 0x03, struct autofs_daemon_done)
104 
105 #endif /* !AUTOFS_IOCTL_H */
106