text: /*	$NetBSD: cd9660_extern.h,v 1.26 2013/06/23 07:28:36 dholland Exp $	*/
  
  /*-
   * Copyright (c) 1994
   *	The Regents of the University of California.  All rights reserved.
   *
   * This code is derived from software contributed to Berkeley
   * by Pace Willisson (pace@blitz.com).  The Rock Ridge Extension
   * Support code is derived from software contributed to Berkeley
   * by Atsushi Murai (amurai@spec.co.jp).
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   * 3. Neither the name of the University nor the names of its contributors
   *    may be used to endorse or promote products derived from this software
   *    without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   *	@(#)iso.h	8.4 (Berkeley) 12/5/94
   */
  
  /*
   * Definitions used in the kernel for cd9660 file system support.
   */
  #ifndef _ISOFS_CD9660_CD9660_EXTERN_H_
  #define _ISOFS_CD9660_CD9660_EXTERN_H_
  
  /*
   * Sysctl values for the cd9660 filesystem.
   */
  #define CD9660_UTF8_JOLIET	1	/* UTF-8 encode Joliet file names */
  
  #define CD9660_NAMES { \
          { 0, 0 }, \
          { "utf8_joliet", CTLTYPE_INT }, \
  }
  
  
  /* CD-ROM Format type */
  enum ISO_FTYPE  { ISO_FTYPE_DEFAULT, ISO_FTYPE_9660, ISO_FTYPE_RRIP, ISO_FTYPE_ECMA };
  
  #ifndef	ISOFSMNT_ROOT
  #define	ISOFSMNT_ROOT	0
  #endif
  
  struct iso_mnt {
  	int im_flags;
  	int im_joliet_level;
  
  	struct mount *im_mountp;
  	dev_t im_dev;
  	struct vnode *im_devvp;
  
  	int logical_block_size;
  	int im_bshift;
  	int im_bmask;
  
  	int volume_space_size;
  
  	char root[ISODCL (157, 190)];
  	int root_extent;
  	int root_size;
  	enum ISO_FTYPE  iso_ftype;
  
  	int rr_skip;
  	int rr_skip0;
  };
  
  #define VFSTOISOFS(mp)	((struct iso_mnt *)((mp)->mnt_data))
  
  #define cd9660_blkoff(imp, loc)		((loc) & (imp)->im_bmask)
  #define cd9660_lblktosize(imp, blk)	((blk) << (imp)->im_bshift)
  #define cd9660_lblkno(imp, loc)	((loc) >> (imp)->im_bshift)
  #define cd9660_blksize(imp, ip, lbn)	((imp)->logical_block_size)
  
  #ifdef _KERNEL
  
  VFS_PROTOS(cd9660);
  
  #include <sys/mallocvar.h>
  MALLOC_DECLARE(M_ISOFSMNT);
  
  extern struct pool cd9660_node_pool;
  extern int cd9660_utf8_joliet;
  
  int cd9660_mountroot(void);
  
  extern int (**cd9660_vnodeop_p)(void *);
  extern int (**cd9660_specop_p)(void *);
  extern int (**cd9660_fifoop_p)(void *);
  
  int isochar(const u_char *, const u_char *, int, u_int16_t *);
  int isofncmp(const u_char *, size_t, const u_char *, size_t, int);
  void isofntrans(const u_char *, int, u_char *, u_short *, int, int, int, int);
  ino_t isodirino(struct iso_directory_record *, struct iso_mnt *);
  #endif /* _KERNEL */
  
  #endif /* _ISOFS_CD9660_CD9660_EXTERN_H_ */
  