usr.sbin/sup/source/sys/viceioctl.h

   1 /*      $NetBSD: viceioctl.h,v 1.3 2002/05/16 19:49:06 wiz Exp $        */
   2
   3 /*
   4  * Copyright (c) 1991 Carnegie Mellon University
   5  * All Rights Reserved.
   6  *
   7  * Permission to use, copy, modify and distribute this software and its
   8  * documentation is hereby granted, provided that both the copyright
   9  * notice and this permission notice appear in all copies of the
  10  * software, derivative works or modified versions, and any portions
  11  * thereof, and that both notices appear in supporting documentation.
  12  *
  13  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  14  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  15  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  16  *
  17  * Carnegie Mellon requests users of this software to return to
  18  *
  19  *  Software Distribution Coordinator   or   Software.Distribution@CS.CMU.EDU
  20  *  School of Computer Science
  21  *  Carnegie Mellon University
  22  *  Pittsburgh PA 15213-3890
  23  *
  24  * any improvements or extensions that they make and grant Carnegie the rights
  25  * to redistribute these changes.
  26  */
  27 /*
  28  * Mach Operating System
  29  * Copyright (c) 1989 Carnegie-Mellon University
  30  * Copyright (c) 1988 Carnegie-Mellon University
  31  * Copyright (c) 1987 Carnegie-Mellon University
  32  * All rights reserved.  The CMU software License Agreement specifies
  33  * the terms and conditions for use and redistribution.
  34  */
  35 /*
  36  * Revision 2.4  90/08/30  11:51:12  bohman
  37  */
  38 /*
  39  * ITC Remote file system - vice ioctl interface module
  40  */
  41
  42 /*
  43  *  TODO:  Find /usr/local/include/viceioctl.h.
  44  */
  45
  46 #ifndef _SYS_VICEIOCTL_H_
  47 #define _SYS_VICEIOCTL_H_
  48
  49 #include <sys/types.h>
  50 #include <sys/ioctl.h>
  51
  52 struct ViceIoctl {
  53         caddr_t in, out;        /* Data to be transferred in, or out */
  54         short in_size;          /* Size of input buffer <= 2K */
  55         short out_size;         /* Maximum size of output buffer, <= 2K */
  56 };
  57
  58 /* The 2K limits above are a consequence of the size of the kernel buffer
  59    used to buffer requests from the user to venus--2*MAXPATHLEN.
  60    The buffer pointers may be null, or the counts may be 0 if there
  61    are no input or output parameters
  62  */
  63
  64 #define _VICEIOCTL(id)  ((unsigned int ) _IOW('V', id, struct ViceIoctl))
  65 /* Use this macro to define up to 256 vice ioctl's.  These ioctl's
  66    all potentially have in/out parameters--this depends upon the
  67    values in the ViceIoctl structure.  This structure is itself passed
  68    into the kernel by the normal ioctl parameter passing mechanism.
  69  */
  70
  71 #define _VALIDVICEIOCTL(com) (com >= _VICEIOCTL(0) && com <= _VICEIOCTL(255))
  72
  73 #endif  /* _SYS_VICEIOCTL_H_ */