The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*-
    2  * Copyright (c) 1994
    3  *      The Regents of the University of California.  All rights reserved.
    4  *
    5  * This code is derived from software contributed to Berkeley
    6  * by Pace Willisson (pace@blitz.com).  The Rock Ridge Extension
    7  * Support code is derived from software contributed to Berkeley
    8  * by Atsushi Murai (amurai@spec.co.jp).
    9  *
   10  * Redistribution and use in source and binary forms, with or without
   11  * modification, are permitted provided that the following conditions
   12  * are met:
   13  * 1. Redistributions of source code must retain the above copyright
   14  *    notice, this list of conditions and the following disclaimer.
   15  * 2. Redistributions in binary form must reproduce the above copyright
   16  *    notice, this list of conditions and the following disclaimer in the
   17  *    documentation and/or other materials provided with the distribution.
   18  * 4. Neither the name of the University nor the names of its contributors
   19  *    may be used to endorse or promote products derived from this software
   20  *    without specific prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  *      @(#)cd9660_node.h       8.6 (Berkeley) 5/14/95
   35  * $FreeBSD$
   36  */
   37 
   38 /*
   39  * Theoretically, directories can be more than 2Gb in length,
   40  * however, in practice this seems unlikely. So, we define
   41  * the type doff_t as a long to keep down the cost of doing
   42  * lookup on a 32-bit machine. If you are porting to a 64-bit
   43  * architecture, you should make doff_t the same as off_t.
   44  */
   45 #define doff_t  long
   46 
   47 typedef struct  {
   48         struct timespec iso_atime;      /* time of last access */
   49         struct timespec iso_mtime;      /* time of last modification */
   50         struct timespec iso_ctime;      /* time file changed */
   51         u_short         iso_mode;       /* files access mode and type */
   52         uid_t           iso_uid;        /* owner user id */
   53         gid_t           iso_gid;        /* owner group id */
   54         short           iso_links;      /* links of file */
   55         dev_t           iso_rdev;       /* Major/Minor number for special */
   56 } ISO_RRIP_INODE;
   57 
   58 
   59 struct iso_node {
   60         struct  vnode *i_vnode; /* vnode associated with this inode */
   61         ino_t   i_number;       /* the identity of the inode */
   62                                 /* we use the actual starting block of the file */
   63         struct  iso_mnt *i_mnt; /* filesystem associated with this inode */
   64         struct  lockf *i_lockf; /* head of byte-level lock list */
   65         doff_t  i_endoff;       /* end of useful stuff in directory */
   66         doff_t  i_diroff;       /* offset in dir, where we found last entry */
   67 
   68         long iso_extent;        /* extent of file */
   69         unsigned long i_size;
   70         long iso_start;         /* actual start of data of file (may be different */
   71                                 /* from iso_extent, if file has extended attributes) */
   72         ISO_RRIP_INODE  inode;
   73 };
   74 
   75 #define i_forw          i_chain[0]
   76 #define i_back          i_chain[1]
   77 
   78 #define VTOI(vp) ((struct iso_node *)(vp)->v_data)
   79 #define ITOV(ip) ((ip)->i_vnode)
   80 
   81 #ifdef _KERNEL
   82 
   83 #ifdef MALLOC_DECLARE
   84 MALLOC_DECLARE(M_ISOFSMNT);
   85 MALLOC_DECLARE(M_ISOFSNODE);
   86 #endif
   87 
   88 struct buf;
   89 struct vop_bmap_args;
   90 struct vop_cachedlookup_args;
   91 struct vop_inactive_args;
   92 struct vop_reclaim_args;
   93 
   94 /*
   95  * Prototypes for ISOFS vnode operations
   96  */
   97 int cd9660_lookup(struct vop_cachedlookup_args *);
   98 int cd9660_inactive(struct vop_inactive_args *);
   99 int cd9660_reclaim(struct vop_reclaim_args *);
  100 int cd9660_bmap(struct vop_bmap_args *);
  101 int cd9660_blkatoff(struct vnode *vp, off_t offset, char **res, struct buf **bpp);
  102 
  103 void cd9660_defattr(struct iso_directory_record *,
  104                         struct iso_node *, struct buf *, enum ISO_FTYPE);
  105 void cd9660_deftstamp(struct iso_directory_record *,
  106                         struct iso_node *, struct buf *, enum ISO_FTYPE);
  107 int cd9660_tstamp_conv7(u_char *, struct timespec *, enum ISO_FTYPE);
  108 int cd9660_tstamp_conv17(u_char *, struct timespec *);
  109 
  110 #endif /* _KERNEL */

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