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      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 (at) 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 
     48 struct 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 
     85 struct 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 */
    112