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

     /*-
      * 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
     * $FreeBSD: releng/5.2/sys/isofs/cd9660/cd9660_node.h 116796 2003-06-24 22:11:20Z jmg $
     */
    
    /*
     * 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 */
            udev_t          iso_rdev;       /* Major/Minor number for special */
    } ISO_RRIP_INODE;
    
    
    struct iso_node {
            struct  iso_node *i_next, **i_prev;     /* 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 */
            struct cdev *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 */
    
            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)
    
    #ifdef _KERNEL
    
    #ifdef MALLOC_DECLARE
    MALLOC_DECLARE(M_ISOFSMNT);
    MALLOC_DECLARE(M_ISOFSNODE);
    #endif
   
   struct buf;
   struct vop_bmap_args;
   struct vop_cachedlookup_args;
   struct vop_inactive_args;
   struct vop_reclaim_args;
   
   /*
    * Prototypes for ISOFS vnode operations
    */
   int cd9660_lookup(struct vop_cachedlookup_args *);
   int cd9660_inactive(struct vop_inactive_args *);
   int cd9660_reclaim(struct vop_reclaim_args *);
   int cd9660_bmap(struct vop_bmap_args *);
   int cd9660_blkatoff(struct vnode *vp, off_t offset, char **res, struct buf **bpp);
   
   void cd9660_defattr(struct iso_directory_record *,
                           struct iso_node *, struct buf *, enum ISO_FTYPE);
   void cd9660_deftstamp(struct iso_directory_record *,
                           struct iso_node *, struct buf *, enum ISO_FTYPE);
   int cd9660_ihashget(dev_t, ino_t, int, struct vnode **);
   void cd9660_ihashins(struct iso_node *);
   int cd9660_tstamp_conv7(u_char *, struct timespec *, enum ISO_FTYPE);
   int cd9660_tstamp_conv17(u_char *, struct timespec *);
   
   #endif /* _KERNEL */

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