Linux kernel mirror (for testing)
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linux
1/*
2 * Copyright 2008 Red Hat, Inc. All rights reserved.
3 * Copyright 2008 Ian Kent <raven@themaw.net>
4 *
5 * This file is part of the Linux kernel and is made available under
6 * the terms of the GNU General Public License, version 2, or at your
7 * option, any later version, incorporated herein by reference.
8 */
9
10#ifndef _LINUX_AUTO_DEV_IOCTL_H
11#define _LINUX_AUTO_DEV_IOCTL_H
12
13#include <linux/types.h>
14
15#define AUTOFS_DEVICE_NAME "autofs"
16
17#define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1
18#define AUTOFS_DEV_IOCTL_VERSION_MINOR 0
19
20#define AUTOFS_DEVID_LEN 16
21
22#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)
23
24/*
25 * An ioctl interface for autofs mount point control.
26 */
27
28/*
29 * All the ioctls use this structure.
30 * When sending a path size must account for the total length
31 * of the chunk of memory otherwise is is the size of the
32 * structure.
33 */
34
35struct autofs_dev_ioctl {
36 __u32 ver_major;
37 __u32 ver_minor;
38 __u32 size; /* total size of data passed in
39 * including this struct */
40 __s32 ioctlfd; /* automount command fd */
41
42 __u32 arg1; /* Command parameters */
43 __u32 arg2;
44
45 char path[0];
46};
47
48static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
49{
50 in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;
51 in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;
52 in->size = sizeof(struct autofs_dev_ioctl);
53 in->ioctlfd = -1;
54 in->arg1 = 0;
55 in->arg2 = 0;
56 return;
57}
58
59/*
60 * If you change this make sure you make the corresponding change
61 * to autofs-dev-ioctl.c:lookup_ioctl()
62 */
63enum {
64 /* Get various version info */
65 AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71,
66 AUTOFS_DEV_IOCTL_PROTOVER_CMD,
67 AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD,
68
69 /* Open mount ioctl fd */
70 AUTOFS_DEV_IOCTL_OPENMOUNT_CMD,
71
72 /* Close mount ioctl fd */
73 AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD,
74
75 /* Mount/expire status returns */
76 AUTOFS_DEV_IOCTL_READY_CMD,
77 AUTOFS_DEV_IOCTL_FAIL_CMD,
78
79 /* Activate/deactivate autofs mount */
80 AUTOFS_DEV_IOCTL_SETPIPEFD_CMD,
81 AUTOFS_DEV_IOCTL_CATATONIC_CMD,
82
83 /* Expiry timeout */
84 AUTOFS_DEV_IOCTL_TIMEOUT_CMD,
85
86 /* Get mount last requesting uid and gid */
87 AUTOFS_DEV_IOCTL_REQUESTER_CMD,
88
89 /* Check for eligible expire candidates */
90 AUTOFS_DEV_IOCTL_EXPIRE_CMD,
91
92 /* Request busy status */
93 AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD,
94
95 /* Check if path is a mountpoint */
96 AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD,
97};
98
99#define AUTOFS_IOCTL 0x93
100
101#define AUTOFS_DEV_IOCTL_VERSION \
102 _IOWR(AUTOFS_IOCTL, \
103 AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl)
104
105#define AUTOFS_DEV_IOCTL_PROTOVER \
106 _IOWR(AUTOFS_IOCTL, \
107 AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl)
108
109#define AUTOFS_DEV_IOCTL_PROTOSUBVER \
110 _IOWR(AUTOFS_IOCTL, \
111 AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl)
112
113#define AUTOFS_DEV_IOCTL_OPENMOUNT \
114 _IOWR(AUTOFS_IOCTL, \
115 AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl)
116
117#define AUTOFS_DEV_IOCTL_CLOSEMOUNT \
118 _IOWR(AUTOFS_IOCTL, \
119 AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl)
120
121#define AUTOFS_DEV_IOCTL_READY \
122 _IOWR(AUTOFS_IOCTL, \
123 AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl)
124
125#define AUTOFS_DEV_IOCTL_FAIL \
126 _IOWR(AUTOFS_IOCTL, \
127 AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl)
128
129#define AUTOFS_DEV_IOCTL_SETPIPEFD \
130 _IOWR(AUTOFS_IOCTL, \
131 AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl)
132
133#define AUTOFS_DEV_IOCTL_CATATONIC \
134 _IOWR(AUTOFS_IOCTL, \
135 AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl)
136
137#define AUTOFS_DEV_IOCTL_TIMEOUT \
138 _IOWR(AUTOFS_IOCTL, \
139 AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl)
140
141#define AUTOFS_DEV_IOCTL_REQUESTER \
142 _IOWR(AUTOFS_IOCTL, \
143 AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl)
144
145#define AUTOFS_DEV_IOCTL_EXPIRE \
146 _IOWR(AUTOFS_IOCTL, \
147 AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl)
148
149#define AUTOFS_DEV_IOCTL_ASKUMOUNT \
150 _IOWR(AUTOFS_IOCTL, \
151 AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl)
152
153#define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \
154 _IOWR(AUTOFS_IOCTL, \
155 AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl)
156
157#endif /* _LINUX_AUTO_DEV_IOCTL_H */