The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/fs/coda/coda_pioctl.h

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    1 /*-
    2  *
    3  *             Coda: an Experimental Distributed File System
    4  *                              Release 3.1
    5  *
    6  *           Copyright (c) 1987-1998 Carnegie Mellon University
    7  *                          All Rights Reserved
    8  *
    9  * Permission  to  use, copy, modify and distribute this software and its
   10  * documentation is hereby granted,  provided  that  both  the  copyright
   11  * notice  and  this  permission  notice  appear  in  all  copies  of the
   12  * software, derivative works or  modified  versions,  and  any  portions
   13  * thereof, and that both notices appear in supporting documentation, and
   14  * that credit is given to Carnegie Mellon University  in  all  documents
   15  * and publicity pertaining to direct or indirect use of this code or its
   16  * derivatives.
   17  *
   18  * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS  KNOWN  TO  HAVE  BUGS,
   19  * SOME  OF  WHICH MAY HAVE SERIOUS CONSEQUENCES.  CARNEGIE MELLON ALLOWS
   20  * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION.   CARNEGIE  MELLON
   21  * DISCLAIMS  ANY  LIABILITY  OF  ANY  KIND  FOR  ANY  DAMAGES WHATSOEVER
   22  * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE  OR  OF
   23  * ANY DERIVATIVE WORK.
   24  *
   25  * Carnegie  Mellon  encourages  users  of  this  software  to return any
   26  * improvements or extensions that  they  make,  and  to  grant  Carnegie
   27  * Mellon the rights to redistribute these changes without encumbrance.
   28  *
   29  *      @(#) src/sys/coda/coda_pioctl.h,v 1.1.1.1 1998/08/29 21:14:52 rvb Exp $
   30  * $FreeBSD: releng/9.0/sys/fs/coda/coda_pioctl.h 176139 2008-02-10 11:18:12Z rwatson $
   31  *
   32  */
   33 
   34 /*-
   35  * Mach Operating System
   36  * Copyright (c) 1989 Carnegie-Mellon University
   37  * Copyright (c) 1988 Carnegie-Mellon University
   38  * Copyright (c) 1987 Carnegie-Mellon University
   39  * All rights reserved.  The CMU software License Agreement specifies
   40  * the terms and conditions for use and redistribution.
   41  */
   42 
   43 /*
   44  * ITC Remote filesystem - vice ioctl interface module
   45  *
   46  * TODO:  Find /usr/local/include/viceioctl.h.
   47  */
   48 
   49 #ifndef _SYS_PIOCTL_H_
   50 #define _SYS_PIOCTL_H_
   51 
   52 /*
   53  * The 2K limits above are a consequence of the size of the kernel buffer
   54  * used to buffer requests from the user to venus--2*MAXPATHLEN.  The buffer
   55  * pointers may be null, or the counts may be 0 if there are no input or
   56  * output parameters.
   57  */
   58 #define _VICEIOCTL(id)  ((unsigned int )_IOW('V', id, struct ViceIoctl))
   59 
   60 /*
   61  * Use this macro to define up to 256 vice ioctl's.  These ioctl's all
   62  * potentially have in/out parameters--this depends upon the values in the
   63  * ViceIoctl structure.  This structure is itself passed into the kernel by
   64  * the normal ioctl parameter passing mechanism.
   65  */
   66 #define _VALIDVICEIOCTL(com)    (com >= _VICEIOCTL(0) &&                \
   67                                     com <= _VICEIOCTL(255))
   68 
   69 #endif /* !_SYS_PIOCTL_H_ */

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