2 * Copyright 2008 Red Hat, Inc. All rights reserved.
3 * Copyright 2008 Ian Kent <raven@themaw.net>
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.
10 #ifndef _LINUX_AUTO_DEV_IOCTL_H
11 #define _LINUX_AUTO_DEV_IOCTL_H
13 #include <linux/types.h>
15 #define AUTOFS_DEVICE_NAME "autofs"
17 #define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1
18 #define AUTOFS_DEV_IOCTL_VERSION_MINOR 0
20 #define AUTOFS_DEVID_LEN 16
22 #define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)
25 * An ioctl interface for autofs mount point control.
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
35 struct autofs_dev_ioctl {
38 __u32 size; /* total size of data passed in
39 * including this struct */
40 __s32 ioctlfd; /* automount command fd */
42 __u32 arg1; /* Command parameters */
48 static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
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);
60 * If you change this make sure you make the corresponding change
61 * to autofs-dev-ioctl.c:lookup_ioctl()
64 /* Get various version info */
65 AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71,
66 AUTOFS_DEV_IOCTL_PROTOVER_CMD,
67 AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD,
69 /* Open mount ioctl fd */
70 AUTOFS_DEV_IOCTL_OPENMOUNT_CMD,
72 /* Close mount ioctl fd */
73 AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD,
75 /* Mount/expire status returns */
76 AUTOFS_DEV_IOCTL_READY_CMD,
77 AUTOFS_DEV_IOCTL_FAIL_CMD,
79 /* Activate/deactivate autofs mount */
80 AUTOFS_DEV_IOCTL_SETPIPEFD_CMD,
81 AUTOFS_DEV_IOCTL_CATATONIC_CMD,
84 AUTOFS_DEV_IOCTL_TIMEOUT_CMD,
86 /* Get mount last requesting uid and gid */
87 AUTOFS_DEV_IOCTL_REQUESTER_CMD,
89 /* Check for eligible expire candidates */
90 AUTOFS_DEV_IOCTL_EXPIRE_CMD,
92 /* Request busy status */
93 AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD,
95 /* Check if path is a mountpoint */
96 AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD,
99 #define AUTOFS_IOCTL 0x93
101 #define AUTOFS_DEV_IOCTL_VERSION \
102 _IOWR(AUTOFS_IOCTL, \
103 AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl)
105 #define AUTOFS_DEV_IOCTL_PROTOVER \
106 _IOWR(AUTOFS_IOCTL, \
107 AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl)
109 #define AUTOFS_DEV_IOCTL_PROTOSUBVER \
110 _IOWR(AUTOFS_IOCTL, \
111 AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl)
113 #define AUTOFS_DEV_IOCTL_OPENMOUNT \
114 _IOWR(AUTOFS_IOCTL, \
115 AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl)
117 #define AUTOFS_DEV_IOCTL_CLOSEMOUNT \
118 _IOWR(AUTOFS_IOCTL, \
119 AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl)
121 #define AUTOFS_DEV_IOCTL_READY \
122 _IOWR(AUTOFS_IOCTL, \
123 AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl)
125 #define AUTOFS_DEV_IOCTL_FAIL \
126 _IOWR(AUTOFS_IOCTL, \
127 AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl)
129 #define AUTOFS_DEV_IOCTL_SETPIPEFD \
130 _IOWR(AUTOFS_IOCTL, \
131 AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl)
133 #define AUTOFS_DEV_IOCTL_CATATONIC \
134 _IOWR(AUTOFS_IOCTL, \
135 AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl)
137 #define AUTOFS_DEV_IOCTL_TIMEOUT \
138 _IOWR(AUTOFS_IOCTL, \
139 AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl)
141 #define AUTOFS_DEV_IOCTL_REQUESTER \
142 _IOWR(AUTOFS_IOCTL, \
143 AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl)
145 #define AUTOFS_DEV_IOCTL_EXPIRE \
146 _IOWR(AUTOFS_IOCTL, \
147 AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl)
149 #define AUTOFS_DEV_IOCTL_ASKUMOUNT \
150 _IOWR(AUTOFS_IOCTL, \
151 AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl)
153 #define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \
154 _IOWR(AUTOFS_IOCTL, \
155 AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl)
157 #endif /* _LINUX_AUTO_DEV_IOCTL_H */