src/afs/FBSD/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  * osi_inode.h
  12  *
  13  * Inode information required for FreeBSD servers and salvager.
  14  */
  15 #ifndef _OSI_INODE_H_
  16 #define _OSI_INODE_H_
  17
  18 #define BAD_IGET        -1000
  19
  20 #define VICEMAGIC       0xb61cfa84
  21
  22 #define DI_VICEP3(p) \
  23         ( ((u_int)((p)->di_vicep3a)) << 16 | ((u_int)((p)->di_vicep3b)) )
  24 #define I_VICE3(p) \
  25         ( ((u_int)((p)->i_vicep3a)) << 16 | ((u_int)((p)->i_vicep3b)) )
  26
  27 #define FAKE_INODE_SIZE    (sizeof(struct vnode)+sizeof(struct inode))
  28 #define MOUNTLIST_UNLOCK() simple_lock_unlock(&mountlist_slock)
  29 #define MOUNTLIST_LOCK()   simple_lock(&mountlist_slock)
  30
  31 /* FreeBSD doesn't actually have a di_proplb, so we use di_spare[0] */
  32 #define di_proplb       di_spare[0]
  33 /* For some reason, they're called "oldids" instead of "bc_{u,g}id" */
  34 #define di_bcuid        di_u.oldids[0]
  35 #define di_bcgid        di_u.oldids[1]
  36
  37 #define i_vicemagic     i_din.di_spare[0]
  38 #define i_vicep1        i_din.di_uid
  39 #define i_vicep2        i_din.di_gid
  40 #define i_vicep3a       i_din.di_u.oldids[0]
  41 #define i_vicep3b       i_din.di_u.oldids[1]
  42 #define i_vicep4        i_din.di_spare[1]       /* not used */
  43
  44 #define di_vicemagic    di_spare[0]
  45 #define di_vicep1       di_uid
  46 #define di_vicep2       di_gid
  47 #define di_vicep3a      di_u.oldids[0]
  48 #define di_vicep3b      di_u.oldids[1]
  49 #define di_vicep4       di_spare[1]     /* not used */
  50
  51 /*
  52  * Macros for handling inode numbers:
  53  *     inode number to file system block offset.
  54  *     inode number to cylinder group number.
  55  *     inode number to file system block address.
  56  */
  57 #define itoo(fs, x)     ((x) % INOPB(fs))
  58 #define itog(fs, x)     ((x) / (fs)->fs_ipg)
  59 #define itod(fs, x) \
  60         ((daddr_t)(cgimin(fs, itog(fs, x)) + \
  61         (blkstofrags((fs), (((x) % (fs)->fs_ipg) / INOPB(fs))))))
  62
  63
  64 #define  IS_VICEMAGIC(ip)        ((ip)->i_vicemagic == VICEMAGIC)
  65 #define  IS_DVICEMAGIC(dp)       ((dp)->di_vicemagic == VICEMAGIC)
  66
  67 #define  CLEAR_VICEMAGIC(ip)     (ip)->i_vicemagic = 0
  68 #define  CLEAR_DVICEMAGIC(dp)    (dp)->di_vicemagic = 0
  69
  70 #endif /* _OSI_INODE_H_ */