xref: /dragonfly/sys/vfs/autofs/autofs_ioctl.h (revision 277350a0)
1 /*-
2  * Copyright (c) 2016 The DragonFly Project
3  * Copyright (c) 2013 The FreeBSD Foundation
4  * All rights reserved.
5  *
6  * This software was developed by Edward Tomasz Napierala under sponsorship
7  * from the FreeBSD Foundation.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  *
30  * $FreeBSD$
31  */
32 
33 #ifndef AUTOFS_IOCTL_H
34 #define	AUTOFS_IOCTL_H
35 
36 #include <sys/param.h>
37 #include <sys/ioccom.h>
38 
39 #define	AUTOFS_PATH		"/dev/autofs"
40 
41 struct autofs_daemon_request {
42 	/*
43 	 * Request identifier.
44 	 */
45 	int		adr_id;
46 
47 	/*
48 	 * The "from" field, containing map name.  For example,
49 	 * when accessing '/net/192.168.1.3/tank/vm/', that would
50 	 * be '-hosts'.
51 	 */
52 	char		adr_from[MAXPATHLEN];
53 
54 	/*
55 	 * Full path to the node being looked up; for requests that result
56 	 * in actual mount it is the full mount path.
57 	 */
58 	char		adr_path[MAXPATHLEN];
59 
60 	/*
61 	 * Prefix, which is basically the mountpoint from auto_master(5).
62 	 * In example above that would be "/net"; for direct maps it is "/".
63 	 */
64 	char		adr_prefix[MAXPATHLEN];
65 
66 	/*
67 	 * Map key, also used as command argument for dynamic maps; in example
68 	 * above that would be '192.168.1.3'.
69 	 */
70 	char		adr_key[MAXPATHLEN];
71 
72 	/*
73 	 * Mount options from auto_master(5).
74 	 */
75 	char		adr_options[MAXPATHLEN];
76 };
77 
78 /*
79  * Compatibility with 10.1-RELEASE automountd(8).
80  */
81 struct autofs_daemon_done_101 {
82 	/*
83 	 * Identifier, copied from adr_id.
84 	 */
85 	int		add_id;
86 
87 	/*
88 	 * Error number, possibly returned to userland.
89 	 */
90 	int		add_error;
91 };
92 
93 struct autofs_daemon_done {
94 	/*
95 	 * Identifier, copied from adr_id.
96 	 */
97 	int		add_id;
98 
99 	/*
100 	 * Set to 1 if the map may contain wildcard entries;
101 	 * otherwise autofs will do negative caching.
102 	 */
103 	int		add_wildcards;
104 
105 	/*
106 	 * Error number, possibly returned to userland.
107 	 */
108 	int		add_error;
109 
110 	/*
111 	 * Reserved for future use.
112 	 */
113 	int		add_spare[7];
114 };
115 
116 #define	AUTOFSREQUEST	_IOR('I', 0x01, struct autofs_daemon_request)
117 #define	AUTOFSDONE101	_IOW('I', 0x02, struct autofs_daemon_done_101)
118 #define	AUTOFSDONE	_IOW('I', 0x03, struct autofs_daemon_done)
119 
120 #endif /* !AUTOFS_IOCTL_H */
121