src/vol/viceinode.h

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 /*
  11         System:         VICE-TWO
  12         Module:         viceinode.h
  13         Institution:    The Information Technology Center, Carnegie-Mellon University
  14
  15  */
  16
  17 #ifndef _VICEINODE_H_
  18 #define _VICEINODE_H_
  19
  20 /* The four inode parameters for most inodes (files, directories,
  21    symbolic links) */
  22 struct InodeParams {
  23     VolumeId volumeId;
  24     VnodeId vnodeNumber;
  25     Unique vnodeUniquifier;
  26     FileVersion inodeDataVersion;
  27 };
  28
  29 /* The four inode parameters for special inodes, i.e. the descriptive
  30    inodes for a volume */
  31 struct SpecialInodeParams {
  32     VolumeId volumeId;
  33     VnodeId vnodeNumber;        /* this must be INODESPECIAL */
  34 #ifdef  AFS_3DISPARES
  35     VolumeId parentId;
  36     int type;
  37 #else
  38     int type;
  39     VolumeId parentId;
  40 #endif
  41 };
  42
  43 /* Structure of individual records output by fsck.
  44    When VICEMAGIC inodes are created, they are given four parameters;
  45    these correspond to the params.fsck array of this record.
  46  */
  47 struct ViceInodeInfo {
  48     Inode inodeNumber;
  49     afs_fsize_t byteCount;
  50     int linkCount;
  51     union {
  52         bit32 param[4];
  53         struct InodeParams vnode;
  54         struct SpecialInodeParams special;
  55     } u;
  56 };
  57
  58 #ifdef  AFS_3DISPARES
  59 #define INODESPECIAL    0x1fffffff
  60 #else
  61 #define INODESPECIAL    0xffffffff
  62 #endif
  63 /* Special inode types.  Be careful of the ordering.  Must start at 1.
  64    See vutil.h */
  65 #define VI_VOLINFO      1       /* The basic volume information file */
  66 #define VI_SMALLINDEX   2       /* The index of small vnodes */
  67 #define VI_LARGEINDEX   3       /* The index of large vnodes */
  68 #define VI_ACL          4       /* The volume's access control list */
  69 #define VI_MOUNTTABLE   5       /* The volume's mount table */
  70 #define VI_LINKTABLE    6       /* The volume's link counts */
  71
  72 #endif /* _VICEINODE_H_ */