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Annotation of 43BSDReno/sys/ufs/dinode.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1982, 1989 The Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution is only permitted until one year after the first shipment
                      6:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
                      7:  * binary forms are permitted provided that: (1) source distributions retain
                      8:  * this entire copyright notice and comment, and (2) distributions including
                      9:  * binaries display the following acknowledgement:  This product includes
                     10:  * software developed by the University of California, Berkeley and its
                     11:  * contributors'' in the documentation or other materials provided with the
                     12:  * distribution and in all advertising materials mentioning features or use
                     13:  * of this software.  Neither the name of the University nor the names of
                     14:  * its contributors may be used to endorse or promote products derived from
                     15:  * this software without specific prior written permission.
                     16:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
                     17:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
                     18:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     19:  *
                     20:  *     @(#)dinode.h    7.9 (Berkeley) 6/28/90
                     21:  */
                     22: 
                     23: /*
                     24:  * This structure defines the on-disk format of an inode.
                     25:  */
                     26: 
                     27: #define        NDADDR  12              /* direct addresses in inode */
                     28: #define        NIADDR  3               /* indirect addresses in inode */
                     29: 
                     30: struct dinode {
                     31:        u_short di_mode;        /*  0: mode and type of file */
                     32:        short   di_nlink;       /*  2: number of links to file */
                     33:        uid_t   di_uid;         /*  4: owner's user id */
                     34:        gid_t   di_gid;         /*  6: owner's group id */
                     35:        u_quad  di_qsize;       /*  8: number of bytes in file */
                     36:        time_t  di_atime;       /* 16: time last accessed */
                     37:        long    di_atspare;
                     38:        time_t  di_mtime;       /* 24: time last modified */
                     39:        long    di_mtspare;
                     40:        time_t  di_ctime;       /* 32: last time inode changed */
                     41:        long    di_ctspare;
                     42:        daddr_t di_db[NDADDR];  /* 40: disk block addresses */
                     43:        daddr_t di_ib[NIADDR];  /* 88: indirect blocks */
                     44:        long    di_flags;       /* 100: status, currently unused */
                     45:        long    di_blocks;      /* 104: blocks actually held */
                     46:        long    di_gen;         /* 108: generation number */
                     47:        long    di_spare[4];    /* 112: reserved, currently unused */
                     48: };
                     49: 
                     50: #if BYTE_ORDER == LITTLE_ENDIAN || defined(tahoe) /* ugh! -- must be fixed */
                     51: #define        di_size         di_qsize.val[0]
                     52: #else /* BYTE_ORDER == BIG_ENDIAN */
                     53: #define        di_size         di_qsize.val[1]
                     54: #endif
                     55: #define        di_rdev         di_db[0]
                     56: 
                     57: /* file modes */
                     58: #define        IFMT            0170000         /* type of file */
                     59: #define        IFIFO           0010000         /* named pipe (fifo) */
                     60: #define        IFCHR           0020000         /* character special */
                     61: #define        IFDIR           0040000         /* directory */
                     62: #define        IFBLK           0060000         /* block special */
                     63: #define        IFREG           0100000         /* regular */
                     64: #define        IFLNK           0120000         /* symbolic link */
                     65: #define        IFSOCK          0140000         /* socket */
                     66: 
                     67: #define        ISUID           04000           /* set user id on execution */
                     68: #define        ISGID           02000           /* set group id on execution */
                     69: #define        ISVTX           01000           /* save swapped text even after use */
                     70: #define        IREAD           0400            /* read, write, execute permissions */
                     71: #define        IWRITE          0200
                     72: #define        IEXEC           0100

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