/*      $NetBSD: cd9660_node.h,v 1.18 2022/03/27 17:10:55 christos 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 ([email protected]).  The Rock Ridge Extension
* Support code is derived from software contributed to Berkeley
* by Atsushi Murai ([email protected]).
*
* 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.
*
*      @(#)cd9660_node.h       8.6 (Berkeley) 5/14/95
*/

#ifndef _ISOFS_CD9660_CD9660_NODE_H_
#define _ISOFS_CD9660_CD9660_NODE_H_

#include <miscfs/genfs/genfs_node.h>

/*
* 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;

struct iso_node {
       struct  genfs_node i_gnode;
       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 */

       unsigned long iso_extent;       /* extent of file */
       unsigned long i_size;
       unsigned 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)

#ifdef _KERNEL
/*
* Prototypes for ISOFS vnode operations
*/
int     cd9660_lookup(void *);
int     cd9660_access(void *);
int     cd9660_getattr(void *);
int     cd9660_read(void *);
int     cd9660_readdir(void *);
int     cd9660_readlink(void *);
int     cd9660_inactive(void *);
int     cd9660_reclaim(void *);
int     cd9660_bmap(void *);
int     cd9660_lock(void *);
int     cd9660_unlock(void *);
int     cd9660_strategy(void *);
int     cd9660_print(void *);
int     cd9660_islocked(void *);
int     cd9660_pathconf(void *);
int     cd9660_setattr(void *);

int     cd9660_blkatoff(struct vnode *, off_t, char **, struct buf **);
void    cd9660_defattr(struct iso_directory_record *,
                       struct iso_node *, struct buf *);
void    cd9660_deftstamp(struct iso_directory_record *,
                       struct iso_node *, struct buf *);
int     cd9660_tstamp_conv7(const u_char *, struct timespec *);
int     cd9660_tstamp_conv17(const u_char *, struct timespec *);

#endif /* _KERNEL */
#endif /* _ISOFS_CD9660_CD9660_NODE_H_ */

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