freebsd-skq/sys/fs/coda/coda_pioctl.h

/*-
 *
 *             Coda: an Experimental Distributed File System
 *                              Release 3.1
 *
 *           Copyright (c) 1987-1998 Carnegie Mellon University
 *                          All Rights Reserved
 *
 * Permission  to  use, copy, modify and distribute this software and its
 * documentation is hereby granted,  provided  that  both  the  copyright
 * notice  and  this  permission  notice  appear  in  all  copies  of the
 * software, derivative works or  modified  versions,  and  any  portions
 * thereof, and that both notices appear in supporting documentation, and
 * that credit is given to Carnegie Mellon University  in  all  documents
 * and publicity pertaining to direct or indirect use of this code or its
 * derivatives.
 *
 * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS  KNOWN  TO  HAVE  BUGS,
 * SOME  OF  WHICH MAY HAVE SERIOUS CONSEQUENCES.  CARNEGIE MELLON ALLOWS
 * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION.   CARNEGIE  MELLON
 * DISCLAIMS  ANY  LIABILITY  OF  ANY  KIND  FOR  ANY  DAMAGES WHATSOEVER
 * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE  OR  OF
 * ANY DERIVATIVE WORK.
 *
 * Carnegie  Mellon  encourages  users  of  this  software  to return any
 * improvements or extensions that  they  make,  and  to  grant  Carnegie
 * Mellon the rights to redistribute these changes without encumbrance.
 *
 * 	@(#) src/sys/coda/coda_pioctl.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
 * $FreeBSD$
 *
 */

/*-
 * Mach Operating System
 * Copyright (c) 1989 Carnegie-Mellon University
 * Copyright (c) 1988 Carnegie-Mellon University
 * Copyright (c) 1987 Carnegie-Mellon University
 * All rights reserved.  The CMU software License Agreement specifies
 * the terms and conditions for use and redistribution.
 */

/*
 * ITC Remote filesystem - vice ioctl interface module
 *
 * TODO:  Find /usr/local/include/viceioctl.h.
 */

#ifndef	_SYS_PIOCTL_H_
#define	_SYS_PIOCTL_H_

/*
 * The 2K limits above are a consequence of the size of the kernel buffer
 * used to buffer requests from the user to venus--2*MAXPATHLEN.  The buffer
 * pointers may be null, or the counts may be 0 if there are no input or
 * output parameters.
 */
#define	_VICEIOCTL(id)	((unsigned int )_IOW('V', id, struct ViceIoctl))

/*
 * Use this macro to define up to 256 vice ioctl's.  These ioctl's all
 * potentially have in/out parameters--this depends upon the values in the
 * ViceIoctl structure.  This structure is itself passed into the kernel by
 * the normal ioctl parameter passing mechanism.
 */
#define	_VALIDVICEIOCTL(com)	(com >= _VICEIOCTL(0) &&		\
				    com <= _VICEIOCTL(255))

#endif /* !_SYS_PIOCTL_H_ */