src/afs/IRIX/osi_inode.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  * Inode information required for IRIX servers and salvager.
  12  */
  13 #ifndef _OSI_INODE_H_
  14 #define _OSI_INODE_H_
  15
  16 #define BAD_IGET        -1000
  17
  18 /* chown can't set the high bit - used for XFS based filesystem */
  19 #define XFS_VICEMAGIC   0x74fa1cb6
  20
  21 /* These exist because HP requires more work to extract uid. */
  22 #define DI_VICEP3(p)    ( (p)->di_vicep3 )
  23 #define I_VICE3(p)      ( (p)->i_vicep3 )
  24
  25
  26 /*
  27  * We use the 12 8-bit unused ex_magic fields!
  28  * Plus 2 values of di_version
  29  * di_version = 0 - current EFS
  30  *          1 - AFS INODESPECIAL
  31  *          2 - AFS inode
  32  * AFS inode:
  33  * magic[0-3] - VOLid
  34  * magic[4-6] - vnode number (24 bits)
  35  * magic[7-9] - disk uniqifier
  36  * magic[10-11]+di_spare - data version
  37  *
  38  * INODESPECIAL:
  39  * magic[0-3] - VOLid
  40  * magic[4-7] - parent
  41  * magic[8]   - type
  42  */
  43 #define SGI_UNIQMASK    0xffffff
  44 #define SGI_DATAMASK     0xffffff
  45 #define SGI_DISKMASK     0xffffff
  46
  47 /* we hang this struct off of the incore inode */
  48 struct afsparms {
  49     afs_int32 vicep1;
  50     afs_int32 vicep2;
  51     afs_int32 vicep3;
  52     afs_int32 vicep4;
  53 };
  54
  55 #define dmag(p,n)        ((p)->di_u.di_extents[n].ex_magic)
  56
  57 #endif /* _OSI_INODE_H_ */