usr.sbin/makefs/ffs.h

   1 /*      $NetBSD: makefs.c,v 1.20 2004/06/20 22:20:18 jmc Exp $  */
   2
   3 /*
   4  * Copyright (c) 2001-2003 Wasabi Systems, Inc.
   5  * All rights reserved.
   6  *
   7  * Written by Luke Mewburn for Wasabi Systems, Inc.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  * 3. All advertising materials mentioning features or use of this software
  18  *    must display the following acknowledgement:
  19  *      This product includes software developed for the NetBSD Project by
  20  *      Wasabi Systems, Inc.
  21  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
  22  *    or promote products derived from this software without specific prior
  23  *    written permission.
  24  *
  25  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
  26  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  27  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  28  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
  29  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  30  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  31  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  32  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  33  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  34  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  35  * POSSIBILITY OF SUCH DAMAGE.
  36  */
  37
  38 #ifndef _FFS_H
  39 #define _FFS_H
  40
  41 typedef struct {
  42         int     bsize;          /* block size */
  43         int     fsize;          /* fragment size */
  44         int     cpg;            /* cylinders per group */
  45         int     cpgflg;         /* cpg was specified by user */
  46         int     density;        /* bytes per inode */
  47         int     ntracks;        /* number of tracks */
  48         int     nsectors;       /* number of sectors */
  49         int     rpm;            /* rpm */
  50         int     minfree;        /* free space threshold */
  51         int     optimization;   /* optimization (space or time) */
  52         int     maxcontig;      /* max contiguous blocks to allocate */
  53         int     rotdelay;       /* rotational delay between blocks */
  54         int     maxbpg;         /* maximum blocks per file in a cyl group */
  55         int     nrpos;          /* # of distinguished rotational positions */
  56         int     avgfilesize;    /* expected average file size */
  57         int     avgfpdir;       /* expected # of files per directory */
  58         int     version;        /* filesystem version (1 = FFS, 2 = UFS2) */
  59         int     maxbsize;       /* maximum extent size */
  60         int     maxblkspercg;   /* max # of blocks per cylinder group */
  61                 /* XXX: support `old' file systems ? */
  62 } ffs_opt_t;
  63
  64 #endif /* _FFS_H */