2008-10-16 01:02:54 -04:00
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/*
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* Copyright 2008 Red Hat, Inc. All rights reserved.
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* Copyright 2008 Ian Kent <raven@themaw.net>
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*
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* This file is part of the Linux kernel and is made available under
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* the terms of the GNU General Public License, version 2, or at your
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* option, any later version, incorporated herein by reference.
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*/
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#ifndef _LINUX_AUTO_DEV_IOCTL_H
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#define _LINUX_AUTO_DEV_IOCTL_H
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2009-01-06 17:42:06 -05:00
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#include <linux/string.h>
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2008-10-16 01:02:54 -04:00
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#include <linux/types.h>
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#define AUTOFS_DEVICE_NAME "autofs"
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#define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1
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#define AUTOFS_DEV_IOCTL_VERSION_MINOR 0
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#define AUTOFS_DEVID_LEN 16
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#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)
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/*
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* An ioctl interface for autofs mount point control.
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*/
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2009-01-06 17:42:06 -05:00
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struct args_protover {
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__u32 version;
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};
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struct args_protosubver {
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__u32 sub_version;
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};
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struct args_openmount {
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__u32 devid;
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};
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struct args_ready {
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__u32 token;
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};
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struct args_fail {
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__u32 token;
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__s32 status;
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};
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struct args_setpipefd {
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__s32 pipefd;
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};
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struct args_timeout {
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__u64 timeout;
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};
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struct args_requester {
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__u32 uid;
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__u32 gid;
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};
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struct args_expire {
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__u32 how;
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};
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struct args_askumount {
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__u32 may_umount;
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};
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struct args_ismountpoint {
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union {
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struct args_in {
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__u32 type;
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} in;
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struct args_out {
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__u32 devid;
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__u32 magic;
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} out;
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};
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};
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2008-10-16 01:02:54 -04:00
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/*
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* All the ioctls use this structure.
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* When sending a path size must account for the total length
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* of the chunk of memory otherwise is is the size of the
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* structure.
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*/
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struct autofs_dev_ioctl {
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__u32 ver_major;
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__u32 ver_minor;
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__u32 size; /* total size of data passed in
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* including this struct */
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__s32 ioctlfd; /* automount command fd */
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2009-01-06 17:42:06 -05:00
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/* Command parameters */
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union {
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struct args_protover protover;
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struct args_protosubver protosubver;
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struct args_openmount openmount;
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struct args_ready ready;
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struct args_fail fail;
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struct args_setpipefd setpipefd;
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struct args_timeout timeout;
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struct args_requester requester;
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struct args_expire expire;
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struct args_askumount askumount;
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struct args_ismountpoint ismountpoint;
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};
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2008-10-16 01:02:54 -04:00
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char path[0];
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};
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static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
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{
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memset(in, 0, sizeof(struct autofs_dev_ioctl));
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in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;
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in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;
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in->size = sizeof(struct autofs_dev_ioctl);
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in->ioctlfd = -1;
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return;
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}
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/*
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* If you change this make sure you make the corresponding change
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* to autofs-dev-ioctl.c:lookup_ioctl()
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*/
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enum {
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/* Get various version info */
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AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71,
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AUTOFS_DEV_IOCTL_PROTOVER_CMD,
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AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD,
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/* Open mount ioctl fd */
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AUTOFS_DEV_IOCTL_OPENMOUNT_CMD,
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/* Close mount ioctl fd */
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AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD,
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/* Mount/expire status returns */
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AUTOFS_DEV_IOCTL_READY_CMD,
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AUTOFS_DEV_IOCTL_FAIL_CMD,
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/* Activate/deactivate autofs mount */
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AUTOFS_DEV_IOCTL_SETPIPEFD_CMD,
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AUTOFS_DEV_IOCTL_CATATONIC_CMD,
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/* Expiry timeout */
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AUTOFS_DEV_IOCTL_TIMEOUT_CMD,
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/* Get mount last requesting uid and gid */
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AUTOFS_DEV_IOCTL_REQUESTER_CMD,
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/* Check for eligible expire candidates */
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AUTOFS_DEV_IOCTL_EXPIRE_CMD,
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/* Request busy status */
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AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD,
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/* Check if path is a mountpoint */
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AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD,
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};
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#define AUTOFS_IOCTL 0x93
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#define AUTOFS_DEV_IOCTL_VERSION \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_PROTOVER \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_PROTOSUBVER \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_OPENMOUNT \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_CLOSEMOUNT \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_READY \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_FAIL \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_SETPIPEFD \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_CATATONIC \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_TIMEOUT \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_REQUESTER \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_EXPIRE \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_ASKUMOUNT \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl)
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#define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \
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_IOWR(AUTOFS_IOCTL, \
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AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl)
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#endif /* _LINUX_AUTO_DEV_IOCTL_H */
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