linux/include/linux/auto_dev-ioctl.h at master · ryanfb/linux · GitHub

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* This file is part of the Linux kernel and is made available under

* the terms of the GNU General Public License, version 2, or at your

* option, any later version, incorporated herein by reference.

#ifndef _LINUX_AUTO_DEV_IOCTL_H

#define _LINUX_AUTO_DEV_IOCTL_H

#include <linux/auto_fs.h>

#ifdef __KERNEL__

#include <linux/string.h>

#else

#include <string.h>

#endif /* __KERNEL__ */

#define AUTOFS_DEVICE_NAME "autofs"

#define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1

#define AUTOFS_DEV_IOCTL_VERSION_MINOR 0

#define AUTOFS_DEVID_LEN 16

#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)

* An ioctl interface for autofs mount point control.

struct args_protover {

__u32 version;

};

struct args_protosubver {

__u32 sub_version;

};

struct args_openmount {

__u32 devid;

};

struct args_ready {

__u32 token;

};

struct args_fail {

__u32 token;

__s32 status;

};

struct args_setpipefd {

__s32 pipefd;

};

struct args_timeout {

__u64 timeout;

};

struct args_requester {

__u32 uid;

__u32 gid;

};

struct args_expire {

__u32 how;

};

struct args_askumount {

__u32 may_umount;

};

struct args_ismountpoint {

union {

struct args_in {

__u32 type;

} in;

struct args_out {

__u32 devid;

__u32 magic;

} out;

};

* All the ioctls use this structure.

* When sending a path size must account for the total length

* of the chunk of memory otherwise is is the size of the

* structure.

struct autofs_dev_ioctl {

__u32 ver_major;

__u32 ver_minor;

__u32 size; /* total size of data passed in

* including this struct */

__s32 ioctlfd; /* automount command fd */

/* Command parameters */

union {

struct args_protover protover;

struct args_protosubver protosubver;

struct args_openmount openmount;

struct args_ready ready;

struct args_fail fail;

struct args_setpipefd setpipefd;

struct args_timeout timeout;

struct args_requester requester;

struct args_expire expire;

struct args_askumount askumount;

struct args_ismountpoint ismountpoint;

};

char path[0];

};

static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)

{

memset(in, 0, sizeof(struct autofs_dev_ioctl));

in->ver_major = AUTOFS_DEV_IOCTL_VERSION_MAJOR;

in->ver_minor = AUTOFS_DEV_IOCTL_VERSION_MINOR;

in->size = sizeof(struct autofs_dev_ioctl);

in->ioctlfd = -1;

return;

}

* If you change this make sure you make the corresponding change

* to autofs-dev-ioctl.c:lookup_ioctl()

enum {

/* Get various version info */

AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71,

AUTOFS_DEV_IOCTL_PROTOVER_CMD,

AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD,

/* Open mount ioctl fd */

AUTOFS_DEV_IOCTL_OPENMOUNT_CMD,

/* Close mount ioctl fd */

AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD,

/* Mount/expire status returns */

AUTOFS_DEV_IOCTL_READY_CMD,

AUTOFS_DEV_IOCTL_FAIL_CMD,

/* Activate/deactivate autofs mount */

AUTOFS_DEV_IOCTL_SETPIPEFD_CMD,

AUTOFS_DEV_IOCTL_CATATONIC_CMD,

/* Expiry timeout */

AUTOFS_DEV_IOCTL_TIMEOUT_CMD,

/* Get mount last requesting uid and gid */

AUTOFS_DEV_IOCTL_REQUESTER_CMD,

/* Check for eligible expire candidates */

AUTOFS_DEV_IOCTL_EXPIRE_CMD,

/* Request busy status */

AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD,

/* Check if path is a mountpoint */

AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD,

};

#define AUTOFS_IOCTL 0x93

#define AUTOFS_DEV_IOCTL_VERSION \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_PROTOVER \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_PROTOSUBVER \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_OPENMOUNT \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_CLOSEMOUNT \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_READY \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_FAIL \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_SETPIPEFD \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_CATATONIC \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_TIMEOUT \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_REQUESTER \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_EXPIRE \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_ASKUMOUNT \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl)

#define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \

_IOWR(AUTOFS_IOCTL, \

AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl)

#endif /* _LINUX_AUTO_DEV_IOCTL_H */

linux/include/linux/auto_dev-ioctl.h at master · ryanfb/linux · GitHub

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