include/protocols/dumprestore.h

   1 /*
   2  * Copyright (c) 1980, 1993
   3  *      The Regents of the University of California.  All rights reserved.
   4  * (c) UNIX System Laboratories, Inc.
   5  * All or some portions of this file are derived from material licensed
   6  * to the University of California by American Telephone and Telegraph
   7  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
   8  * the permission of UNIX System Laboratories, Inc.
   9  *
  10  * Redistribution and use in source and binary forms, with or without
  11  * modification, are permitted provided that the following conditions
  12  * are met:
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright
  16  *    notice, this list of conditions and the following disclaimer in the
  17  *    documentation and/or other materials provided with the distribution.
  18  * 3. Neither the name of the University nor the names of its contributors
  19  *    may be used to endorse or promote products derived from this software
  20  *    without specific prior written permission.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  32  * SUCH DAMAGE.
  33  *
  34  * @(#)dumprestore.h    8.2 (Berkeley) 1/21/94
  35  * $DragonFly: src/include/protocols/dumprestore.h,v 1.3 2006/04/03 01:58:44 dillon Exp $
  36  */
  37
  38 #ifndef _PROTOCOLS_DUMPRESTORE_H_
  39 #define _PROTOCOLS_DUMPRESTORE_H_
  40
  41 /*
  42  * TP_BSIZE is the size of file blocks on the dump tapes.
  43  * Note that TP_BSIZE must be a multiple of DEV_BSIZE.
  44  *
  45  * NTREC is the number of TP_BSIZE blocks that are written
  46  * in each tape record. HIGHDENSITYTREC is the number of
  47  * TP_BSIZE blocks that are written in each tape record on
  48  * 6250 BPI or higher density tapes.
  49  *
  50  * TP_NINDIR is the number of indirect pointers in a TS_INODE
  51  * or TS_ADDR record. Note that it must be a power of two.
  52  */
  53 #define TP_BSIZE        1024
  54 #define NTREC           10
  55 #define HIGHDENSITYTREC 32
  56 #define TP_NINDIR       (TP_BSIZE/2)
  57 #define LBLSIZE         16
  58 #define NAMELEN         64
  59
  60 #define OFS_MAGIC       (int)60011
  61 #define NFS_MAGIC       (int)60012
  62 #define CHECKSUM        (int)84446
  63
  64 union u_spcl {
  65         char dummy[TP_BSIZE];
  66         struct  s_spcl {
  67                 int32_t c_type;             /* record type (see below) */
  68                 int32_t c_date;             /* date of this dump */
  69                 int32_t c_ddate;            /* date of previous dump */
  70                 int32_t c_volume;           /* dump volume number */
  71                 daddr_t c_tapea;            /* logical block of this record */
  72                 u_int32_t c_inumber;        /* number of inode */
  73                 int32_t c_magic;            /* magic number (see above) */
  74                 int32_t c_checksum;         /* record checksum */
  75                 struct  ufs1_dinode c_dinode; /* ownership and mode of inode */
  76                 int32_t c_count;            /* number of valid c_addr entries */
  77                 char    c_addr[TP_NINDIR];  /* 1 => data; 0 => hole in inode */
  78                 char    c_label[LBLSIZE];   /* dump label */
  79                 int32_t c_level;            /* level of this dump */
  80                 char    c_filesys[NAMELEN]; /* name of dumpped file system */
  81                 char    c_dev[NAMELEN];     /* name of dumpped device */
  82                 char    c_host[NAMELEN];    /* name of dumpped host */
  83                 int32_t c_flags;            /* additional information */
  84                 int32_t c_firstrec;         /* first record on volume */
  85                 int32_t c_spare[32];        /* reserved for future uses */
  86         } s_spcl;
  87 } u_spcl;
  88 #define spcl u_spcl.s_spcl
  89 /*
  90  * special record types
  91  */
  92 #define TS_TAPE         1       /* dump tape header */
  93 #define TS_INODE        2       /* beginning of file record */
  94 #define TS_ADDR         4       /* continuation of file record */
  95 #define TS_BITS         3       /* map of inodes on tape */
  96 #define TS_CLRI         6       /* map of inodes deleted since last dump */
  97 #define TS_END          5       /* end of volume marker */
  98
  99 /*
 100  * flag values
 101  */
 102 #define DR_NEWHEADER    0x0001  /* new format tape header */
 103 #define DR_NEWINODEFMT  0x0002  /* new format inodes on tape */
 104
 105 #define DUMPOUTFMT      "%-32s %c %s"           /* for printf */
 106                                                 /* name, level, ctime(date) */
 107 #define DUMPINFMT       "%32s %c %[^\n]\n"      /* inverse for scanf */
 108
 109 #endif /* !_DUMPRESTORE_H_ */