xref: /freebsd/sys/fs/autofs/autofs_ioctl.h (revision 7d8f797b725e3efc0a4256554654780df83c456c)
1 /*-
2  * Copyright (c) 2013 The FreeBSD Foundation
3  * All rights reserved.
4  *
5  * This software was developed by Edward Tomasz Napierala under sponsorship
6  * from the FreeBSD Foundation.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef AUTOFS_IOCTL_H
33 #define	AUTOFS_IOCTL_H
34 
35 #define	AUTOFS_PATH		"/dev/autofs"
36 
37 struct autofs_daemon_request {
38 	/*
39 	 * Request identifier.
40 	 */
41 	int		adr_id;
42 
43 	/*
44 	 * The "from" field, containing map name.  For example,
45 	 * when accessing '/net/192.168.1.3/tank/vm/', that would
46 	 * be '-hosts'.
47 	 */
48 	char		adr_from[MAXPATHLEN];
49 
50 	/*
51 	 * Full path to the node being looked up; for requests that result
52 	 * in actual mount it is the full mount path.
53 	 */
54 	char		adr_path[MAXPATHLEN];
55 
56 	/*
57 	 * Prefix, which is basically the mountpoint from auto_master(5).
58 	 * In example above that would be "/net"; for direct maps it is "/".
59 	 */
60 	char		adr_prefix[MAXPATHLEN];
61 
62 	/*
63 	 * Map key, also used as command argument for dynamic maps; in example
64 	 * above that would be '192.168.1.3'.
65 	 */
66 	char		adr_key[MAXPATHLEN];
67 
68 	/*
69 	 * Mount options from auto_master(5).
70 	 */
71 	char		adr_options[MAXPATHLEN];
72 };
73 
74 /*
75  * Compatibility with 10.1-RELEASE automountd(8).
76  */
77 struct autofs_daemon_done_101 {
78 	/*
79 	 * Identifier, copied from adr_id.
80 	 */
81 	int		add_id;
82 
83 	/*
84 	 * Error number, possibly returned to userland.
85 	 */
86 	int		add_error;
87 };
88 
89 struct autofs_daemon_done {
90 	/*
91 	 * Identifier, copied from adr_id.
92 	 */
93 	int		add_id;
94 
95 	/*
96 	 * Set to 1 if the map may contain wildcard entries;
97 	 * otherwise autofs will do negative caching.
98 	 */
99 	int		add_wildcards;
100 
101 	/*
102 	 * Error number, possibly returned to userland.
103 	 */
104 	int		add_error;
105 
106 	/*
107 	 * Reserved for future use.
108 	 */
109 	int		add_spare[7];
110 };
111 
112 #define	AUTOFSREQUEST	_IOR('I', 0x01, struct autofs_daemon_request)
113 #define	AUTOFSDONE101	_IOW('I', 0x02, struct autofs_daemon_done_101)
114 #define	AUTOFSDONE	_IOW('I', 0x03, struct autofs_daemon_done)
115 
116 #endif /* !AUTOFS_IOCTL_H */
117