1 /* 2 * Copyright (c) 1982, 1989 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 * 17 * @(#)dinode.h 7.8 (Berkeley) 05/15/90 18 */ 19 20 /* 21 * This structure defines the on-disk format of an inode. 22 */ 23 24 #define NDADDR 12 /* direct addresses in inode */ 25 #define NIADDR 3 /* indirect addresses in inode */ 26 27 struct dinode { 28 u_short di_mode; /* 0: mode and type of file */ 29 short di_nlink; /* 2: number of links to file */ 30 uid_t di_uid; /* 4: owner's user id */ 31 gid_t di_gid; /* 6: owner's group id */ 32 u_quad di_qsize; /* 8: number of bytes in file */ 33 time_t di_atime; /* 16: time last accessed */ 34 long di_atspare; 35 time_t di_mtime; /* 24: time last modified */ 36 long di_mtspare; 37 time_t di_ctime; /* 32: last time inode changed */ 38 long di_ctspare; 39 daddr_t di_db[NDADDR]; /* 40: disk block addresses */ 40 daddr_t di_ib[NIADDR]; /* 88: indirect blocks */ 41 long di_flags; /* 100: status, currently unused */ 42 long di_blocks; /* 104: blocks actually held */ 43 long di_gen; /* 108: generation number */ 44 long di_spare[4]; /* 112: reserved, currently unused */ 45 }; 46 47 #if BYTE_ORDER == LITTLE_ENDIAN || defined(tahoe) /* ugh! -- must be fixed */ 48 #define di_size di_qsize.val[0] 49 #else /* BYTE_ORDER == BIG_ENDIAN */ 50 #define di_size di_qsize.val[1] 51 #endif 52 #define di_rdev di_db[0] 53 54 /* file modes */ 55 #define IFMT 0170000 /* type of file */ 56 #define IFIFO 0010000 /* named pipe (fifo) */ 57 #define IFCHR 0020000 /* character special */ 58 #define IFDIR 0040000 /* directory */ 59 #define IFBLK 0060000 /* block special */ 60 #define IFREG 0100000 /* regular */ 61 #define IFLNK 0120000 /* symbolic link */ 62 #define IFSOCK 0140000 /* socket */ 63 64 #define ISUID 04000 /* set user id on execution */ 65 #define ISGID 02000 /* set group id on execution */ 66 #define ISVTX 01000 /* save swapped text even after use */ 67 #define IREAD 0400 /* read, write, execute permissions */ 68 #define IWRITE 0200 69 #define IEXEC 0100 70