[deliverable/linux.git] / include / linux / auto_dev-ioctl.h

/*
 * Copyright 2008 Red Hat, Inc. All rights reserved.
 * Copyright 2008 Ian Kent <raven@themaw.net>
 *
 * 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/types.h>

#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.
 */

/*
 * 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 */

	__u32 arg1;		/* Command parameters */
	__u32 arg2;

	char path[0];
};

static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
{
	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;
	in->arg1 = 0;
	in->arg2 = 0;
	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 */
Commit	Line	Data
8d7b48e0 IK	1	/*
	2	* Copyright 2008 Red Hat, Inc. All rights reserved.
	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.
	8	*/
	9
	10	#ifndef _LINUX_AUTO_DEV_IOCTL_H
	11	#define _LINUX_AUTO_DEV_IOCTL_H
	12
	13	#include <linux/types.h>
	14
	15	#define AUTOFS_DEVICE_NAME "autofs"
	16
	17	#define AUTOFS_DEV_IOCTL_VERSION_MAJOR 1
	18	#define AUTOFS_DEV_IOCTL_VERSION_MINOR 0
	19
	20	#define AUTOFS_DEVID_LEN 16
	21
	22	#define AUTOFS_DEV_IOCTL_SIZE sizeof(struct autofs_dev_ioctl)
	23
	24	/*
	25	* An ioctl interface for autofs mount point control.
	26	*/
	27
	28	/*
	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
	32	* structure.
	33	*/
	34
	35	struct autofs_dev_ioctl {
	36	__u32 ver_major;
	37	__u32 ver_minor;
	38	__u32 size; /* total size of data passed in
	39	* including this struct */
	40	__s32 ioctlfd; /* automount command fd */
	41
	42	__u32 arg1; /* Command parameters */
	43	__u32 arg2;
	44
	45	char path[0];
	46	};
	47
	48	static inline void init_autofs_dev_ioctl(struct autofs_dev_ioctl *in)
	49	{
	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);
	53	in->ioctlfd = -1;
	54	in->arg1 = 0;
	55	in->arg2 = 0;
	56	return;
	57	}
	58
	59	/*
	60	* If you change this make sure you make the corresponding change
	61	* to autofs-dev-ioctl.c:lookup_ioctl()
	62	*/
	63	enum {
	64	/* Get various version info */
65	AUTOFS_DEV_IOCTL_VERSION_CMD = 0x71,
66	AUTOFS_DEV_IOCTL_PROTOVER_CMD,
67	AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD,
68
69	/* Open mount ioctl fd */
70	AUTOFS_DEV_IOCTL_OPENMOUNT_CMD,
71
72	/* Close mount ioctl fd */
73	AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD,
74
75	/* Mount/expire status returns */
76	AUTOFS_DEV_IOCTL_READY_CMD,
77	AUTOFS_DEV_IOCTL_FAIL_CMD,
78
79	/* Activate/deactivate autofs mount */
80	AUTOFS_DEV_IOCTL_SETPIPEFD_CMD,
81	AUTOFS_DEV_IOCTL_CATATONIC_CMD,
82
83	/* Expiry timeout */
84	AUTOFS_DEV_IOCTL_TIMEOUT_CMD,
85
86	/* Get mount last requesting uid and gid */
87	AUTOFS_DEV_IOCTL_REQUESTER_CMD,
88
89	/* Check for eligible expire candidates */
90	AUTOFS_DEV_IOCTL_EXPIRE_CMD,
91
92	/* Request busy status */
93	AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD,
94
95	/* Check if path is a mountpoint */
96	AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD,
97	};
98
99	#define AUTOFS_IOCTL 0x93
100
101	#define AUTOFS_DEV_IOCTL_VERSION \
102	_IOWR(AUTOFS_IOCTL, \
103	AUTOFS_DEV_IOCTL_VERSION_CMD, struct autofs_dev_ioctl)
104
105	#define AUTOFS_DEV_IOCTL_PROTOVER \
106	_IOWR(AUTOFS_IOCTL, \
107	AUTOFS_DEV_IOCTL_PROTOVER_CMD, struct autofs_dev_ioctl)
108
109	#define AUTOFS_DEV_IOCTL_PROTOSUBVER \
110	_IOWR(AUTOFS_IOCTL, \
111	AUTOFS_DEV_IOCTL_PROTOSUBVER_CMD, struct autofs_dev_ioctl)
112
113	#define AUTOFS_DEV_IOCTL_OPENMOUNT \
114	_IOWR(AUTOFS_IOCTL, \
115	AUTOFS_DEV_IOCTL_OPENMOUNT_CMD, struct autofs_dev_ioctl)
116
117	#define AUTOFS_DEV_IOCTL_CLOSEMOUNT \
118	_IOWR(AUTOFS_IOCTL, \
119	AUTOFS_DEV_IOCTL_CLOSEMOUNT_CMD, struct autofs_dev_ioctl)
120
121	#define AUTOFS_DEV_IOCTL_READY \
122	_IOWR(AUTOFS_IOCTL, \
123	AUTOFS_DEV_IOCTL_READY_CMD, struct autofs_dev_ioctl)
124
125	#define AUTOFS_DEV_IOCTL_FAIL \
126	_IOWR(AUTOFS_IOCTL, \
127	AUTOFS_DEV_IOCTL_FAIL_CMD, struct autofs_dev_ioctl)
128
129	#define AUTOFS_DEV_IOCTL_SETPIPEFD \
130	_IOWR(AUTOFS_IOCTL, \
131	AUTOFS_DEV_IOCTL_SETPIPEFD_CMD, struct autofs_dev_ioctl)
132
133	#define AUTOFS_DEV_IOCTL_CATATONIC \
134	_IOWR(AUTOFS_IOCTL, \
135	AUTOFS_DEV_IOCTL_CATATONIC_CMD, struct autofs_dev_ioctl)
136
137	#define AUTOFS_DEV_IOCTL_TIMEOUT \
138	_IOWR(AUTOFS_IOCTL, \
139	AUTOFS_DEV_IOCTL_TIMEOUT_CMD, struct autofs_dev_ioctl)
140
141	#define AUTOFS_DEV_IOCTL_REQUESTER \
142	_IOWR(AUTOFS_IOCTL, \
143	AUTOFS_DEV_IOCTL_REQUESTER_CMD, struct autofs_dev_ioctl)
144
145	#define AUTOFS_DEV_IOCTL_EXPIRE \
146	_IOWR(AUTOFS_IOCTL, \
147	AUTOFS_DEV_IOCTL_EXPIRE_CMD, struct autofs_dev_ioctl)
148
149	#define AUTOFS_DEV_IOCTL_ASKUMOUNT \
150	_IOWR(AUTOFS_IOCTL, \
151	AUTOFS_DEV_IOCTL_ASKUMOUNT_CMD, struct autofs_dev_ioctl)
152
153	#define AUTOFS_DEV_IOCTL_ISMOUNTPOINT \
154	_IOWR(AUTOFS_IOCTL, \
155	AUTOFS_DEV_IOCTL_ISMOUNTPOINT_CMD, struct autofs_dev_ioctl)
156
157	#endif /* _LINUX_AUTO_DEV_IOCTL_H */