1 /* SPDX-License-Identifier: GPL-2.0-or-later * <<
2 /* 1 /*
3 * Copyright 2008 Red Hat, Inc. All rights res 2 * Copyright 2008 Red Hat, Inc. All rights reserved.
4 * Copyright 2008 Ian Kent <raven@themaw.net> 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.
5 */ 8 */
6 9
7 #ifndef _LINUX_AUTO_DEV_IOCTL_H 10 #ifndef _LINUX_AUTO_DEV_IOCTL_H
8 #define _LINUX_AUTO_DEV_IOCTL_H 11 #define _LINUX_AUTO_DEV_IOCTL_H
9 12
10 #include <uapi/linux/auto_dev-ioctl.h> !! 13 #include <linux/auto_fs.h>
>> 14
>> 15 #ifdef __KERNEL__
>> 16 #include <linux/string.h>
>> 17 #else
>> 18 #include <string.h>
>> 19 #endif /* __KERNEL__ */
>> 20
>> 21 #define AUTOFS_DEVICE_NAME "autofs"
>> 22
>> 23 #define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1
>> 24 #define AUTOFS_DEV_IOCTL_VERSION_MINOR 0
>> 25
>> 26 #define AUTOFS_DEVID_LEN 16
>> 27
>> 28 #define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)
>> 29
>> 30 /*
>> 31 * An ioctl interface for autofs mount point control.
>> 32 */
>> 33
>> 34 struct args_protover {
>> 35 __u32 version;
>> 36 };
>> 37
>> 38 struct args_protosubver {
>> 39 __u32 sub_version;
>> 40 };
>> 41
>> 42 struct args_openmount {
>> 43 __u32 devid;
>> 44 };
>> 45
>> 46 struct args_ready {
>> 47 __u32 token;
>> 48 };
>> 49
>> 50 struct args_fail {
>> 51 __u32 token;
>> 52 __s32 status;
>> 53 };
>> 54
>> 55 struct args_setpipefd {
>> 56 __s32 pipefd;
>> 57 };
>> 58
>> 59 struct args_timeout {
>> 60 __u64 timeout;
>> 61 };
>> 62
>> 63 struct args_requester {
>> 64 __u32 uid;
>> 65 __u32 gid;
>> 66 };
>> 67
>> 68 struct args_expire {
>> 69 __u32 how;
>> 70 };
>> 71
>> 72 struct args_askumount {
>> 73 __u32 may_umount;
>> 74 };
>> 75
>> 76 struct args_ismountpoint {
>> 77 union {
>> 78 struct args_in {
>> 79 __u32 type;
>> 80 } in;
>> 81 struct args_out {
>> 82 __u32 devid;
>> 83 __u32 magic;
>> 84 } out;
>> 85 };
>> 86 };
>> 87
>> 88 /*
>> 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
>> 92 * structure.
>> 93 */
>> 94
>> 95 struct autofs_dev_ioctl {
>> 96 __u32 ver_major;
>> 97 __u32 ver_minor;
>> 98 __u32 size; /* total size of data passed in
>> 99 * including this struct */
>> 100 __s32 ioctlfd; /* automount command fd */
>> 101
>> 102 /* Command parameters */
>> 103
>> 104 union {
>> 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;
>> 116 };
>> 117
>> 118 char path[0];
>> 119 };
>> 120
>> 121 static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
>> 122 {
>> 123 memset(in, 0, sizeof(struct autofs_dev_ioctl));
>> 124 in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;
>> 125 in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;
>> 126 in->size = sizeof(struct autofs_dev_ioctl);
>> 127 in->ioctlfd = -1;
>> 128 return;
>> 129 }
>> 130
>> 131 /*
>> 132 * If you change this make sure you make the corresponding change
>> 133 * to autofs-dev-ioctl.c:lookup_ioctl()
>> 134 */
>> 135 enum {
>> 136 /* Get various version info */
>> 137 AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71,
>> 138 AUTOFS_DEV_IOCTL_PROTOVER_CMD,
>> 139 AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD,
>> 140
>> 141 /* Open mount ioctl fd */
>> 142 AUTOFS_DEV_IOCTL_OPENMOUNT_CMD,
>> 143
>> 144 /* Close mount ioctl fd */
>> 145 AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD,
>> 146
>> 147 /* Mount/expire status returns */
>> 148 AUTOFS_DEV_IOCTL_READY_CMD,
>> 149 AUTOFS_DEV_IOCTL_FAIL_CMD,
>> 150
>> 151 /* Activate/deactivate autofs mount */
>> 152 AUTOFS_DEV_IOCTL_SETPIPEFD_CMD,
>> 153 AUTOFS_DEV_IOCTL_CATATONIC_CMD,
>> 154
>> 155 /* Expiry timeout */
>> 156 AUTOFS_DEV_IOCTL_TIMEOUT_CMD,
>> 157
>> 158 /* Get mount last requesting uid and gid */
>> 159 AUTOFS_DEV_IOCTL_REQUESTER_CMD,
>> 160
>> 161 /* Check for eligible expire candidates */
>> 162 AUTOFS_DEV_IOCTL_EXPIRE_CMD,
>> 163
>> 164 /* Request busy status */
>> 165 AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD,
>> 166
>> 167 /* Check if path is a mountpoint */
>> 168 AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD,
>> 169 };
>> 170
>> 171 #define AUTOFS_IOCTL 0x93
>> 172
>> 173 #define AUTOFS_DEV_IOCTL_VERSION \
>> 174 _IOWR(AUTOFS_IOCTL, \
>> 175 AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl)
>> 176
>> 177 #define AUTOFS_DEV_IOCTL_PROTOVER \
>> 178 _IOWR(AUTOFS_IOCTL, \
>> 179 AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl)
>> 180
>> 181 #define AUTOFS_DEV_IOCTL_PROTOSUBVER \
>> 182 _IOWR(AUTOFS_IOCTL, \
>> 183 AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl)
>> 184
>> 185 #define AUTOFS_DEV_IOCTL_OPENMOUNT \
>> 186 _IOWR(AUTOFS_IOCTL, \
>> 187 AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl)
>> 188
>> 189 #define AUTOFS_DEV_IOCTL_CLOSEMOUNT \
>> 190 _IOWR(AUTOFS_IOCTL, \
>> 191 AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl)
>> 192
>> 193 #define AUTOFS_DEV_IOCTL_READY \
>> 194 _IOWR(AUTOFS_IOCTL, \
>> 195 AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl)
>> 196
>> 197 #define AUTOFS_DEV_IOCTL_FAIL \
>> 198 _IOWR(AUTOFS_IOCTL, \
>> 199 AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl)
>> 200
>> 201 #define AUTOFS_DEV_IOCTL_SETPIPEFD \
>> 202 _IOWR(AUTOFS_IOCTL, \
>> 203 AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl)
>> 204
>> 205 #define AUTOFS_DEV_IOCTL_CATATONIC \
>> 206 _IOWR(AUTOFS_IOCTL, \
>> 207 AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl)
>> 208
>> 209 #define AUTOFS_DEV_IOCTL_TIMEOUT \
>> 210 _IOWR(AUTOFS_IOCTL, \
>> 211 AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl)
>> 212
>> 213 #define AUTOFS_DEV_IOCTL_REQUESTER \
>> 214 _IOWR(AUTOFS_IOCTL, \
>> 215 AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl)
>> 216
>> 217 #define AUTOFS_DEV_IOCTL_EXPIRE \
>> 218 _IOWR(AUTOFS_IOCTL, \
>> 219 AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl)
>> 220
>> 221 #define AUTOFS_DEV_IOCTL_ASKUMOUNT \
>> 222 _IOWR(AUTOFS_IOCTL, \
>> 223 AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl)
>> 224
>> 225 #define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \
>> 226 _IOWR(AUTOFS_IOCTL, \
>> 227 AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl)
>> 228
11 #endif /* _LINUX_AUTO_DEV_IOCTL_H */ 229 #endif /* _LINUX_AUTO_DEV_IOCTL_H */
12 230
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