text: /*-
   * 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. All advertising materials mentioning features or use of this software
   *    must display the following acknowledgement:
   *	This product includes software developed by the University of
   *	California, Berkeley and its contributors.
   * 4. 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.
   *
   *	@(#)cd9660_node.h	8.6 (Berkeley) 5/14/95
   */
  
  /*
   * Theoretically, directories can be more than 2Gb in length,
   * however, in practice this seems unlikely. So, we define
   * the type doff_t as a long to keep down the cost of doing
   * lookup on a 32-bit machine. If you are porting to a 64-bit
   * architecture, you should make doff_t the same as off_t.
   */
  #define doff_t	long
  
  typedef	struct	{
  	struct timespec		iso_atime;	/* time of last access */
  	struct timespec		iso_mtime;	/* time of last modification */
  	struct timespec		iso_ctime;	/* time file changed */
  	u_short				iso_mode;	/* files access mode and type */
  	uid_t				iso_uid;	/* owner user id */
  	gid_t				iso_gid;	/* owner group id */
  	short				iso_links;	/* links of file */
  	dev_t				iso_rdev;	/* Major/Minor number for special */
  } ISO_RRIP_INODE;
  
  #ifdef ISODEVMAP
  /*
   * FOr device# (major,minor) translation table
   */
  struct iso_dnode {
  	LIST_ENTRY(iso_dnode) d_hash;	/* hash chain */
  	dev_t				i_dev;		/* device where dnode resides */
  	ino_t				i_number;	/* the identity of the inode */
  	dev_t				d_dev;		/* device # for translation */
  };
  #endif
  
  struct iso_node {
  	LIST_ENTRY(iso_node) i_hash;			/* hash chain */
  	struct	vnode 		*i_vnode;			/* vnode associated with this inode */
  	struct	vnode 		*i_devvp;			/* vnode for block I/O */
  	u_long				i_flag;				/* see below */
  	dev_t				i_dev;				/* device where inode resides */
  	ino_t				i_number;			/* the identity of the inode */
  				/* we use the actual starting block of the file */
  	struct	iso_mnt 	*i_mnt;				/* filesystem associated with this inode */
  	struct	lockf 		*i_lockf;			/* head of byte-level lock list */
  	doff_t				i_endoff;			/* end of useful stuff in directory */
  	doff_t				i_diroff;			/* offset in dir, where we found last entry */
  	doff_t				i_offset;			/* offset of free space in directory */
  	ino_t				i_ino;				/* inode number of found directory */
  	struct	lock 		i_lock;				/* node lock */
  
  	long 				iso_extent;			/* extent of file */
  	long 				i_size;
  	long 				iso_start;			/* actual start of data of file (may be different */
  				/* from iso_extent, if file has extended attributes) */
  	ISO_RRIP_INODE  	inode;
  };
  
  //#define	i_forw			i_chain[0]
  //#define	i_back			i_chain[1]
  
  /* flags */
  #define	IN_ACCESS	0x0020		/* inode access time to be updated */
  
  #define VTOI(vp) ((struct iso_node *)(vp)->v_data)
  #define ITOV(ip) ((ip)->i_vnode)
  
  /*
   * Prototypes for ISOFS vnode operations
   */
  struct flock;
  struct uio;
  
  int cd9660_lookup(struct vop_lookup_args *);
  int cd9660_open(struct vop_open_args *);
  int cd9660_close(struct vop_close_args *);
  int cd9660_access(struct vop_access_args *);
  int cd9660_getattr(struct vop_getattr_args *);
  int cd9660_read(struct vop_read_args *);
  int cd9660_ioctl(struct vop_ioctl_args *);
  int cd9660_select(struct vop_select_args *);
  int cd9660_mmap(struct vop_mmap_args *);
  int cd9660_seek(struct vop_seek_args *);
  int cd9660_readdir(struct vop_readdir_args *);
  int cd9660_readlink(struct vop_readlink_args *);
  int cd9660_abortop(struct vop_abortop_args *);
  int cd9660_inactive(struct vop_inactive_args *);
  int cd9660_reclaim(struct vop_reclaim_args *);
  int cd9660_bmap(struct vop_bmap_args *);
  int cd9660_lock(struct vop_lock_args *);
  int cd9660_unlock(struct vop_unlock_args *);
  int cd9660_strategy(struct vop_strategy_args *);
  int cd9660_print(struct vop_print_args *);
  int cd9660_islocked(struct vop_islocked_args *);
  int cd9660_pathconf(struct vop_pathconf_args *);
  int cd9660_blkatoff(struct vop_blkatoff_args *);
  
  void cd9660_defattr(struct iso_directory_record *, struct iso_node *, struct buf *);
  void cd9660_deftstamp(struct iso_directory_record *, struct iso_node *, struct buf *);
  struct vnode *cd9660_ihashget(dev_t, ino_t);
  void cd9660_ihashins(struct iso_node *);
  void cd9660_ihashrem(struct iso_node *);
  int cd9660_tstamp_conv7(u_char *, struct timespec *);
  int cd9660_tstamp_conv17(u_char *, struct timespec *);
  #ifdef	ISODEVMAP
  struct iso_dnode *iso_dmap(dev_t, ino_t, int);
  void  iso_dunmap(dev_t);
  #endif
  