[mirror_ubuntu-hirsute-kernel.git] / include / linux / auto_fs4.h

/* -*- c -*-
 * linux/include/linux/auto_fs4.h
 *
 * Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
 *
 * 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_FS4_H
#define _LINUX_AUTO_FS4_H

/* Include common v3 definitions */
#include <linux/auto_fs.h>

/* autofs v4 definitions */
#undef AUTOFS_PROTO_VERSION
#undef AUTOFS_MIN_PROTO_VERSION
#undef AUTOFS_MAX_PROTO_VERSION

#define AUTOFS_PROTO_VERSION		5
#define AUTOFS_MIN_PROTO_VERSION	3
#define AUTOFS_MAX_PROTO_VERSION	5

#define AUTOFS_PROTO_SUBVERSION		0

/* Mask for expire behaviour */
#define AUTOFS_EXP_IMMEDIATE		1
#define AUTOFS_EXP_LEAVES		2

/* Daemon notification packet types */
enum autofs_notify {
	NFY_NONE,
	NFY_MOUNT,
	NFY_EXPIRE
};

/* Kernel protocol version 4 packet types */

/* Expire entry (umount request) */
#define autofs_ptype_expire_multi	2

/* Kernel protocol version 5 packet types */

/* Indirect mount missing and expire requests. */
#define autofs_ptype_missing_indirect	3
#define autofs_ptype_expire_indirect	4

/* Direct mount missing and expire requests */
#define autofs_ptype_missing_direct	5
#define autofs_ptype_expire_direct	6

/* v4 multi expire (via pipe) */
struct autofs_packet_expire_multi {
	struct autofs_packet_hdr hdr;
        autofs_wqt_t wait_queue_token;
	int len;
	char name[NAME_MAX+1];
};

union autofs_packet_union {
	struct autofs_packet_hdr hdr;
	struct autofs_packet_missing missing;
	struct autofs_packet_expire expire;
	struct autofs_packet_expire_multi expire_multi;
};

/* autofs v5 common packet struct */
struct autofs_v5_packet {
	struct autofs_packet_hdr hdr;
	autofs_wqt_t wait_queue_token;
	__u32 dev;
	__u64 ino;
	__u32 uid;
	__u32 gid;
	__u32 pid;
	__u32 tgid;
	__u32 len;
	char name[NAME_MAX+1];
};

typedef struct autofs_v5_packet autofs_packet_missing_indirect_t;
typedef struct autofs_v5_packet autofs_packet_expire_indirect_t;
typedef struct autofs_v5_packet autofs_packet_missing_direct_t;
typedef struct autofs_v5_packet autofs_packet_expire_direct_t;

union autofs_v5_packet_union {
	struct autofs_packet_hdr hdr;
	struct autofs_v5_packet v5_packet;
	autofs_packet_missing_indirect_t missing_indirect;
	autofs_packet_expire_indirect_t expire_indirect;
	autofs_packet_missing_direct_t missing_direct;
	autofs_packet_expire_direct_t expire_direct;
};

#define AUTOFS_IOC_EXPIRE_MULTI		_IOW(0x93,0x66,int)
#define AUTOFS_IOC_EXPIRE_INDIRECT	AUTOFS_IOC_EXPIRE_MULTI
#define AUTOFS_IOC_EXPIRE_DIRECT	AUTOFS_IOC_EXPIRE_MULTI
#define AUTOFS_IOC_PROTOSUBVER		_IOR(0x93,0x67,int)
#define AUTOFS_IOC_ASKUMOUNT		_IOR(0x93,0x70,int)


#endif /* _LINUX_AUTO_FS4_H */
Commit	Line	Data
1da177e4 LT	1	/* -- c --
	2	* linux/include/linux/auto_fs4.h
	3	*
	4	* Copyright 1999-2000 Jeremy Fitzhardinge <jeremy@goop.org>
	5	*
	6	* This file is part of the Linux kernel and is made available under
	7	* the terms of the GNU General Public License, version 2, or at your
	8	* option, any later version, incorporated herein by reference.
	9	*/
	10
	11	#ifndef _LINUX_AUTO_FS4_H
	12	#define _LINUX_AUTO_FS4_H
	13
	14	/* Include common v3 definitions */
	15	#include <linux/auto_fs.h>
	16
	17	/* autofs v4 definitions */
	18	#undef AUTOFS_PROTO_VERSION
	19	#undef AUTOFS_MIN_PROTO_VERSION
	20	#undef AUTOFS_MAX_PROTO_VERSION
	21
5c0a32fc	22	#define AUTOFS_PROTO_VERSION 5
1da177e4	23	#define AUTOFS_MIN_PROTO_VERSION 3
5c0a32fc	24	#define AUTOFS_MAX_PROTO_VERSION 5
1da177e4	25
5c0a32fc	26	#define AUTOFS_PROTO_SUBVERSION 0
1da177e4 LT	27
	28	/* Mask for expire behaviour */
	29	#define AUTOFS_EXP_IMMEDIATE 1
	30	#define AUTOFS_EXP_LEAVES 2
	31
5c0a32fc IK	32	/* Daemon notification packet types */
	33	enum autofs_notify {
	34	NFY_NONE,
	35	NFY_MOUNT,
	36	NFY_EXPIRE
	37	};
	38
	39	/* Kernel protocol version 4 packet types */
	40
	41	/* Expire entry (umount request) */
	42	#define autofs_ptype_expire_multi 2
	43
	44	/* Kernel protocol version 5 packet types */
	45
	46	/* Indirect mount missing and expire requests. */
	47	#define autofs_ptype_missing_indirect 3
	48	#define autofs_ptype_expire_indirect 4
	49
	50	/* Direct mount missing and expire requests */
	51	#define autofs_ptype_missing_direct 5
	52	#define autofs_ptype_expire_direct 6
1da177e4 LT	53
	54	/* v4 multi expire (via pipe) */
	55	struct autofs_packet_expire_multi {
	56	struct autofs_packet_hdr hdr;
	57	autofs_wqt_t wait_queue_token;
	58	int len;
	59	char name[NAME_MAX+1];
	60	};
	61
e8514478 IK	62	union autofs_packet_union {
	63	struct autofs_packet_hdr hdr;
	64	struct autofs_packet_missing missing;
	65	struct autofs_packet_expire expire;
	66	struct autofs_packet_expire_multi expire_multi;
	67	};
	68
5c0a32fc IK	69	/* autofs v5 common packet struct */
	70	struct autofs_v5_packet {
	71	struct autofs_packet_hdr hdr;
	72	autofs_wqt_t wait_queue_token;
	73	__u32 dev;
	74	__u64 ino;
	75	__u32 uid;
	76	__u32 gid;
	77	__u32 pid;
	78	__u32 tgid;
	79	__u32 len;
	80	char name[NAME_MAX+1];
	81	};
	82
	83	typedef struct autofs_v5_packet autofs_packet_missing_indirect_t;
	84	typedef struct autofs_v5_packet autofs_packet_expire_indirect_t;
	85	typedef struct autofs_v5_packet autofs_packet_missing_direct_t;
	86	typedef struct autofs_v5_packet autofs_packet_expire_direct_t;
	87
e8514478	88	union autofs_v5_packet_union {
1da177e4	89	struct autofs_packet_hdr hdr;
5c0a32fc	90	struct autofs_v5_packet v5_packet;
e8514478 IK	91	autofs_packet_missing_indirect_t missing_indirect;
	92	autofs_packet_expire_indirect_t expire_indirect;
	93	autofs_packet_missing_direct_t missing_direct;
	94	autofs_packet_expire_direct_t expire_direct;
1da177e4 LT	95	};
	96
	97	#define AUTOFS_IOC_EXPIRE_MULTI _IOW(0x93,0x66,int)
5c0a32fc IK	98	#define AUTOFS_IOC_EXPIRE_INDIRECT AUTOFS_IOC_EXPIRE_MULTI
5c0a32fc IK	99	#define AUTOFS_IOC_EXPIRE_DIRECT AUTOFS_IOC_EXPIRE_MULTI
1da177e4	100	#define AUTOFS_IOC_PROTOSUBVER _IOR(0x93,0x67,int)
1da177e4 LT	101	#define AUTOFS_IOC_ASKUMOUNT _IOR(0x93,0x70,int)
	102
	103
	104	#endif /* _LINUX_AUTO_FS4_H */