1/*	$NetBSD: autofs_ioctl.h,v 1.1 2018/01/09 03:31:14 christos Exp $	*/
  2
  3/*-
  4 * Copyright (c) 2017 The NetBSD Foundation, Inc.
  5 * Copyright (c) 2016 The DragonFly Project
  6 * Copyright (c) 2013 The FreeBSD Foundation
  7 * All rights reserved.
  8 *
  9 * This code is derived from software contributed to The NetBSD Foundation
 10 * by Tomohiro Kusumi <kusumi.tomohiro@gmail.com>.
 11 *
 12 * This software was developed by Edward Tomasz Napierala under sponsorship
 13 * from the FreeBSD Foundation.
 14 *
 15 * Redistribution and use in source and binary forms, with or without
 16 * modification, are permitted provided that the following conditions
 17 * are met:
 18 * 1. Redistributions of source code must retain the above copyright
 19 *    notice, this list of conditions and the following disclaimer.
 20 * 2. Redistributions in binary form must reproduce the above copyright
 21 *    notice, this list of conditions and the following disclaimer in the
 22 *    documentation and/or other materials provided with the distribution.
 23 *
 24 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 27 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 34 * SUCH DAMAGE.
 35 *
 36 * $FreeBSD$
 37 */
 38
 39#ifndef _SYS_FS_AUTOFS_AUTOFS_IOCTL_H_
 40#define	_SYS_FS_AUTOFS_AUTOFS_IOCTL_H_
 41
 42#include <sys/param.h>
 43#include <sys/ioccom.h>
 44
 45#define	AUTOFS_PATH		"/dev/autofs"
 46#define AUTOFS_MAXPATHLEN	256
 47
 48struct autofs_daemon_request {
 49	/*
 50	 * Request identifier.
 51	 */
 52	int		adr_id;
 53
 54	/*
 55	 * The "from" field, containing map name.  For example,
 56	 * when accessing '/net/192.168.1.3/tank/vm/', that would
 57	 * be '-hosts'.
 58	 */
 59	char		adr_from[AUTOFS_MAXPATHLEN];
 60
 61	/*
 62	 * Full path to the node being looked up; for requests that result
 63	 * in actual mount it is the full mount path.
 64	 */
 65	char		adr_path[AUTOFS_MAXPATHLEN];
 66
 67	/*
 68	 * Prefix, which is basically the mountpoint from auto_master(5).
 69	 * In example above that would be "/net"; for direct maps it is "/".
 70	 */
 71	char		adr_prefix[AUTOFS_MAXPATHLEN];
 72
 73	/*
 74	 * Map key, also used as command argument for dynamic maps; in example
 75	 * above that would be '192.168.1.3'.
 76	 */
 77	char		adr_key[AUTOFS_MAXPATHLEN];
 78
 79	/*
 80	 * Mount options from auto_master(5).
 81	 */
 82	char		adr_options[AUTOFS_MAXPATHLEN];
 83};
 84
 85struct autofs_daemon_done {
 86	/*
 87	 * Identifier, copied from adr_id.
 88	 */
 89	int		add_id;
 90
 91	/*
 92	 * Set to 1 if the map may contain wildcard entries;
 93	 * otherwise autofs will do negative caching.
 94	 */
 95	int		add_wildcards;
 96
 97	/*
 98	 * Error number, possibly returned to userland.
 99	 */
100	int		add_error;
101
102	/*
103	 * Reserved for future use.
104	 */
105	int		add_spare[7];
106};
107
108#define	AUTOFSREQUEST	_IOR('I', 0x01, struct autofs_daemon_request)
109#define	AUTOFSDONE	_IOW('I', 0x02, struct autofs_daemon_done)
110
111#endif /* !_SYS_FS_AUTOFS_AUTOFS_IOCTL_H */