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/auto_fs.h>
16 #include <linux/string.h>
19 #endif /* __KERNEL__ */
21 #define AUTOFS_DEVICE_NAME "autofs"
23 #define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1
24 #define AUTOFS_DEV_IOCTL_VERSION_MINOR 0
26 #define AUTOFS_DEVID_LEN 16
28 #define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)
31 * An ioctl interface for autofs mount point control.
34 struct args_protover {
38 struct args_protosubver {
42 struct args_openmount {
55 struct args_setpipefd {
63 struct args_requester {
72 struct args_askumount {
76 struct args_ismountpoint {
89 * All the ioctls use this structure.
90 * When sending a path size must account for the total length
91 * of the chunk of memory otherwise is is the size of the
95 struct autofs_dev_ioctl {
98 __u32 size; /* total size of data passed in
99 * including this struct */
100 __s32 ioctlfd; /* automount command fd */
102 /* Command parameters */
105 struct args_protover protover;
106 struct args_protosubver protosubver;
107 struct args_openmount openmount;
108 struct args_ready ready;
109 struct args_fail fail;
110 struct args_setpipefd setpipefd;
111 struct args_timeout timeout;
112 struct args_requester requester;
113 struct args_expire expire;
114 struct args_askumount askumount;
115 struct args_ismountpoint ismountpoint;
121 static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in) {
122 memset(in, 0, sizeof(struct autofs_dev_ioctl));
123 in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;
124 in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;
125 in->size = sizeof(struct autofs_dev_ioctl);
131 * If you change this make sure you make the corresponding change
132 * to autofs-dev-ioctl.c:lookup_ioctl()
135 /* Get various version info */
136 AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71,
137 AUTOFS_DEV_IOCTL_PROTOVER_CMD,
138 AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD,
140 /* Open mount ioctl fd */
141 AUTOFS_DEV_IOCTL_OPENMOUNT_CMD,
143 /* Close mount ioctl fd */
144 AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD,
146 /* Mount/expire status returns */
147 AUTOFS_DEV_IOCTL_READY_CMD,
148 AUTOFS_DEV_IOCTL_FAIL_CMD,
150 /* Activate/deactivate autofs mount */
151 AUTOFS_DEV_IOCTL_SETPIPEFD_CMD,
152 AUTOFS_DEV_IOCTL_CATATONIC_CMD,
155 AUTOFS_DEV_IOCTL_TIMEOUT_CMD,
157 /* Get mount last requesting uid and gid */
158 AUTOFS_DEV_IOCTL_REQUESTER_CMD,
160 /* Check for eligible expire candidates */
161 AUTOFS_DEV_IOCTL_EXPIRE_CMD,
163 /* Request busy status */
164 AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD,
166 /* Check if path is a mountpoint */
167 AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD,
170 #define AUTOFS_IOCTL 0x93
172 #define AUTOFS_DEV_IOCTL_VERSION \
173 _IOWR(AUTOFS_IOCTL, \
174 AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl)
176 #define AUTOFS_DEV_IOCTL_PROTOVER \
177 _IOWR(AUTOFS_IOCTL, \
178 AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl)
180 #define AUTOFS_DEV_IOCTL_PROTOSUBVER \
181 _IOWR(AUTOFS_IOCTL, \
182 AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl)
184 #define AUTOFS_DEV_IOCTL_OPENMOUNT \
185 _IOWR(AUTOFS_IOCTL, \
186 AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl)
188 #define AUTOFS_DEV_IOCTL_CLOSEMOUNT \
189 _IOWR(AUTOFS_IOCTL, \
190 AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl)
192 #define AUTOFS_DEV_IOCTL_READY \
193 _IOWR(AUTOFS_IOCTL, \
194 AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl)
196 #define AUTOFS_DEV_IOCTL_FAIL \
197 _IOWR(AUTOFS_IOCTL, \
198 AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl)
200 #define AUTOFS_DEV_IOCTL_SETPIPEFD \
201 _IOWR(AUTOFS_IOCTL, \
202 AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl)
204 #define AUTOFS_DEV_IOCTL_CATATONIC \
205 _IOWR(AUTOFS_IOCTL, \
206 AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl)
208 #define AUTOFS_DEV_IOCTL_TIMEOUT \
209 _IOWR(AUTOFS_IOCTL, \
210 AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl)
212 #define AUTOFS_DEV_IOCTL_REQUESTER \
213 _IOWR(AUTOFS_IOCTL, \
214 AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl)
216 #define AUTOFS_DEV_IOCTL_EXPIRE \
217 _IOWR(AUTOFS_IOCTL, \
218 AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl)
220 #define AUTOFS_DEV_IOCTL_ASKUMOUNT \
221 _IOWR(AUTOFS_IOCTL, \
222 AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl)
224 #define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \
225 _IOWR(AUTOFS_IOCTL, \
226 AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl)
228 #endif /* _LINUX_AUTO_DEV_IOCTL_H */