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Annotation of 43BSDReno/include/protocols/dumprestore.h, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1980 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  *
                      6:  *     @(#)dumprestore.h       5.3 (Berkeley) 1/28/87
                      7:  */
                      8: 
                      9: /*
                     10:  * TP_BSIZE is the size of file blocks on the dump tapes.
                     11:  * Note that TP_BSIZE must be a multiple of DEV_BSIZE.
                     12:  *
                     13:  * NTREC is the number of TP_BSIZE blocks that are written
                     14:  * in each tape record. HIGHDENSITYTREC is the number of
                     15:  * TP_BSIZE blocks that are written in each tape record on
                     16:  * 6250 BPI or higher density tapes.
                     17:  *
                     18:  * TP_NINDIR is the number of indirect pointers in a TS_INODE
                     19:  * or TS_ADDR record. Note that it must be a power of two.
                     20:  */
                     21: #define TP_BSIZE       1024
                     22: #define NTREC          10
                     23: #define HIGHDENSITYTREC        32
                     24: #define TP_NINDIR      (TP_BSIZE/2)
                     25: #define LBLSIZE                16
                     26: #define NAMELEN                64
                     27: 
                     28: #define OFS_MAGIC      (int)60011
                     29: #define NFS_MAGIC      (int)60012
                     30: #define CHECKSUM       (int)84446
                     31: 
                     32: union u_spcl {
                     33:        char dummy[TP_BSIZE];
                     34:        struct  s_spcl {
                     35:                long    c_type;             /* record type (see below) */
                     36:                time_t  c_date;             /* date of previous dump */
                     37:                time_t  c_ddate;            /* date of this dump */
                     38:                long    c_volume;           /* dump volume number */
                     39:                daddr_t c_tapea;            /* logical block of this record */
                     40:                ino_t   c_inumber;          /* number of inode */
                     41:                long    c_magic;            /* magic number (see above) */
                     42:                long    c_checksum;         /* record checksum */
                     43:                struct  dinode  c_dinode;   /* ownership and mode of inode */
                     44:                long    c_count;            /* number of valid c_addr entries */
                     45:                char    c_addr[TP_NINDIR];  /* 1 => data; 0 => hole in inode */
                     46:                char    c_label[LBLSIZE];   /* dump label */
                     47:                long    c_level;            /* level of this dump */
                     48:                char    c_filesys[NAMELEN]; /* name of dumpped file system */
                     49:                char    c_dev[NAMELEN];     /* name of dumpped device */
                     50:                char    c_host[NAMELEN];    /* name of dumpped host */
                     51:                long    c_flags;            /* additional information */
                     52:        } s_spcl;
                     53: } u_spcl;
                     54: #define spcl u_spcl.s_spcl
                     55: /*
                     56:  * special record types
                     57:  */
                     58: #define TS_TAPE        1       /* dump tape header */
                     59: #define TS_INODE       2       /* beginning of file record */
                     60: #define TS_ADDR        4       /* continuation of file record */
                     61: #define TS_BITS        3       /* map of inodes on tape */
                     62: #define TS_CLRI        6       /* map of inodes deleted since last dump */
                     63: #define TS_END         5       /* end of volume marker */
                     64: 
                     65: /*
                     66:  * flag values
                     67:  */
                     68: #define DR_NEWHEADER   1       /* new format tape header */
                     69: 
                     70: #define        DUMPOUTFMT      "%-16s %c %s"           /* for printf */
                     71:                                                /* name, incno, ctime(date) */
                     72: #define        DUMPINFMT       "%16s %c %[^\n]\n"      /* inverse for scanf */

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