sys/fs/cd9660/cd9660_extern.h

   1 /*      $NetBSD: cd9660_extern.h,v 1.26 2013/06/23 07:28:36 dholland Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1994
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * This code is derived from software contributed to Berkeley
   8  * by Pace Willisson (pace@blitz.com).  The Rock Ridge Extension
   9  * Support code is derived from software contributed to Berkeley
  10  * by Atsushi Murai (amurai@spec.co.jp).
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  * 3. Neither the name of the University nor the names of its contributors
  21  *    may be used to endorse or promote products derived from this software
  22  *    without specific prior written permission.
  23  *
  24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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  *      @(#)iso.h       8.4 (Berkeley) 12/5/94
  37  */
  38
  39 /*
  40  * Definitions used in the kernel for cd9660 file system support.
  41  */
  42 #ifndef _ISOFS_CD9660_CD9660_EXTERN_H_
  43 #define _ISOFS_CD9660_CD9660_EXTERN_H_
  44
  45 /*
  46  * Sysctl values for the cd9660 filesystem.
  47  */
  48 #define CD9660_UTF8_JOLIET      1       /* UTF-8 encode Joliet file names */
  49
  50 #define CD9660_NAMES { \
  51         { 0, 0 }, \
  52         { "utf8_joliet", CTLTYPE_INT }, \
  53 }
  54
  55
  56 /* CD-ROM Format type */
  57 enum ISO_FTYPE  { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, ISO_FTYPE_ECMA };
  58
  59 #ifndef ISOFSMNT_ROOT
  60 #define ISOFSMNT_ROOT   0
  61 #endif
  62
  63 struct iso_mnt {
  64         int im_flags;
  65         int im_joliet_level;
  66
  67         struct mount *im_mountp;
  68         dev_t im_dev;
  69         struct vnode *im_devvp;
  70
  71         int logical_block_size;
  72         int im_bshift;
  73         int im_bmask;
  74
  75         int volume_space_size;
  76
  77         char root[ISODCL (157, 190)];
  78         int root_extent;
  79         int root_size;
  80         enum ISO_FTYPE  iso_ftype;
  81
  82         int rr_skip;
  83         int rr_skip0;
  84 };
  85
  86 #define VFSTOISOFS(mp)  ((struct iso_mnt *)((mp)->mnt_data))
  87
  88 #define cd9660_blkoff(imp, loc)         ((loc) & (imp)->im_bmask)
  89 #define cd9660_lblktosize(imp, blk)     ((blk) << (imp)->im_bshift)
  90 #define cd9660_lblkno(imp, loc) ((loc) >> (imp)->im_bshift)
  91 #define cd9660_blksize(imp, ip, lbn)    ((imp)->logical_block_size)
  92
  93 #ifdef _KERNEL
  94
  95 VFS_PROTOS(cd9660);
  96
  97 #include <sys/mallocvar.h>
  98 MALLOC_DECLARE(M_ISOFSMNT);
  99
 100 extern struct pool cd9660_node_pool;
 101 extern int cd9660_utf8_joliet;
 102
 103 int cd9660_mountroot(void);
 104
 105 extern int (**cd9660_vnodeop_p)(void *);
 106 extern int (**cd9660_specop_p)(void *);
 107 extern int (**cd9660_fifoop_p)(void *);
 108
 109 int isochar(const u_char *, const u_char *, int, u_int16_t *);
 110 int isofncmp(const u_char *, size_t, const u_char *, size_t, int);
 111 void isofntrans(const u_char *, int, u_char *, u_short *, int, int, int, int);
 112 ino_t isodirino(struct iso_directory_record *, struct iso_mnt *);
 113 #endif /* _KERNEL */
 114
 115 #endif /* _ISOFS_CD9660_CD9660_EXTERN_H_ */