| /* |
| * Mach Operating System |
| * Copyright (c) 1991,1990 Carnegie Mellon University |
| * All Rights Reserved. |
| * |
| * Permission to use, copy, modify and distribute this software and its |
| * documentation is hereby granted, provided that both the copyright |
| * notice and this permission notice appear in all copies of the |
| * software, derivative works or modified versions, and any portions |
| * thereof, and that both notices appear in supporting documentation. |
| * |
| * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" |
| * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR |
| * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. |
| * |
| * Carnegie Mellon requests users of this software to return to |
| * |
| * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU |
| * School of Computer Science |
| * Carnegie Mellon University |
| * Pittsburgh PA 15213-3890 |
| * |
| * any improvements or extensions that they make and grant Carnegie Mellon |
| * the rights to redistribute these changes. |
| */ |
| /* |
| * Copyright (c) 1982, 1989 The Regents of the University of California. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms are permitted |
| * provided that the above copyright notice and this paragraph are |
| * duplicated in all such forms and that any documentation, |
| * advertising materials, and other materials related to such |
| * distribution and use acknowledge that the software was developed |
| * by the University of California, Berkeley. The name of the |
| * University may not be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * @(#)inode.h 7.5 (Berkeley) 7/3/89 |
| */ |
| |
| #ifndef _BOOT_UFS_DISK_INODE_H_ |
| #define _BOOT_UFS_DISK_INODE_H_ |
| |
| /* |
| * The I node is the focus of all file activity in the BSD Fast File System. |
| * There is a unique inode allocated for each active file, |
| * each current directory, each mounted-on file, text file, and the root. |
| * An inode is 'named' by its dev/inumber pair. (iget/iget.c) |
| * Data in icommon is read in from permanent inode on volume. |
| */ |
| |
| #define FFS_NDADDR 12 /* direct addresses in inode */ |
| #define FFS_NIADDR 3 /* indirect addresses in inode */ |
| |
| #define FFS_MAX_FASTLINK_SIZE ((FFS_NDADDR + FFS_NIADDR) * sizeof(daddr_t)) |
| |
| struct icommon |
| { |
| u_short ic_mode; /* 0: mode and type of file */ |
| short ic_nlink; /* 2: number of links to file */ |
| uid_t ic_uid; /* 4: owner's user id */ |
| gid_t ic_gid; /* 6: owner's group id */ |
| quad ic_size; /* 8: number of bytes in file */ |
| time_t ic_atime; /* 16: time last accessed */ |
| int ic_atspare; |
| time_t ic_mtime; /* 24: time last modified */ |
| int ic_mtspare; |
| time_t ic_ctime; /* 32: last time inode changed */ |
| int ic_ctspare; |
| union |
| { |
| struct |
| { |
| daddr_t Mb_db[FFS_NDADDR]; /* 40: disk block addresses */ |
| daddr_t Mb_ib[FFS_NIADDR]; /* 88: indirect blocks */ |
| } |
| ic_Mb; |
| char ic_Msymlink[FFS_MAX_FASTLINK_SIZE]; |
| /* 40: symbolic link name */ |
| } |
| ic_Mun; |
| #define ic_db ic_Mun.ic_Mb.Mb_db |
| #define ic_ib ic_Mun.ic_Mb.Mb_ib |
| #define ic_symlink ic_Mun.ic_Msymlink |
| int ic_flags; /* 100: status, currently unused */ |
| int ic_blocks; /* 104: blocks actually held */ |
| int ic_gen; /* 108: generation number */ |
| int ic_spare[4]; /* 112: reserved, currently unused */ |
| }; |
| |
| /* |
| * Same structure, but on disk. |
| */ |
| struct dinode |
| { |
| union |
| { |
| struct icommon di_com; |
| char di_char[128]; |
| } |
| di_un; |
| }; |
| #define di_ic di_un.di_com |
| |
| #endif /* _BOOT_UFS_DISK_INODE_H_ */ |