FreeBSD/Linux Kernel Cross Reference
sys/fs/cd9660/cd9660_node.h

     /*      $NetBSD: cd9660_node.h,v 1.5.2.1 2004/06/22 09:02:45 tron 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.
     *
     *      @(#)cd9660_node.h       8.6 (Berkeley) 5/14/95
     */
    
    #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;
    
    #ifdef ISODEVMAP
    /*
     * FOr device# (major,minor) translation table
     */
    struct iso_dnode {
            LIST_ENTRY(iso_dnode) d_hash;
            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 {
            struct  genfs_node i_gnode;
            LIST_ENTRY(iso_node) i_hash;
            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)
   
   /*
    * Prototypes for ISOFS vnode operations
    */
   int     cd9660_lookup   __P((void *));
   #define cd9660_open     genfs_nullop
   #define cd9660_close    genfs_nullop
   int     cd9660_access   __P((void *));
   int     cd9660_getattr  __P((void *));
   int     cd9660_read     __P((void *));
   #define cd9660_ioctl    genfs_enoioctl
   #define cd9660_poll     genfs_poll
   #define cd9660_mmap     genfs_mmap
   #define cd9660_seek     genfs_seek
   int     cd9660_readdir  __P((void *));
   int     cd9660_readlink __P((void *));
   #define cd9660_abortop  genfs_abortop
   int     cd9660_inactive __P((void *));
   int     cd9660_reclaim  __P((void *));
   int     cd9660_link     __P((void *));
   int     cd9660_symlink  __P((void *));
   int     cd9660_bmap     __P((void *));
   int     cd9660_lock     __P((void *));
   int     cd9660_unlock   __P((void *));
   int     cd9660_strategy __P((void *));
   int     cd9660_print    __P((void *));
   int     cd9660_islocked __P((void *));
   int     cd9660_pathconf __P((void *));
   int     cd9660_setattr  __P((void *));
   int     cd9660_blkatoff __P((void *));
   
   void    cd9660_defattr __P((struct iso_directory_record *,
                           struct iso_node *, struct buf *));
   void    cd9660_deftstamp __P((struct iso_directory_record *,
                           struct iso_node *, struct buf *));
   struct  vnode *cd9660_ihashget __P((dev_t, ino_t));
   void    cd9660_ihashins __P((struct iso_node *));
   void    cd9660_ihashrem __P((struct iso_node *));
   int     cd9660_tstamp_conv7 __P((u_char *, struct timespec *));
   int     cd9660_tstamp_conv17 __P((u_char *, struct timespec *));
   int     cd9660_vget_internal __P((struct mount *, ino_t, struct vnode **, int,
                                 struct iso_directory_record *));
   #ifdef  ISODEVMAP
   struct iso_dnode *iso_dmap __P((dev_t, ino_t, int));
   void iso_dunmap __P((dev_t));
   #endif

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