compat/include/protocols/dumprestore.h

   1 /*
   2  *      Ported to Linux's Second Extended File System as part of the
   3  *      dump and restore backup suit
   4  *      Remy Card <card@Linux.EU.Org>, 1994, 1995, 1996
   5  *
   6  */
   7
   8 /*
   9  * Copyright (c) 1980, 1993
  10  *      The Regents of the University of California.  All rights reserved.
  11  * (c) UNIX System Laboratories, Inc.
  12  * All or some portions of this file are derived from material licensed
  13  * to the University of California by American Telephone and Telegraph
  14  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  15  * the permission of UNIX System Laboratories, Inc.
  16  *
  17  * Redistribution and use in source and binary forms, with or without
  18  * modification, are permitted provided that the following conditions
  19  * are met:
  20  * 1. Redistributions of source code must retain the above copyright
  21  *    notice, this list of conditions and the following disclaimer.
  22  * 2. Redistributions in binary form must reproduce the above copyright
  23  *    notice, this list of conditions and the following disclaimer in the
  24  *    documentation and/or other materials provided with the distribution.
  25  * 3. All advertising materials mentioning features or use of this software
  26  *    must display the following acknowledgement:
  27  *      This product includes software developed by the University of
  28  *      California, Berkeley and its contributors.
  29  * 4. Neither the name of the University nor the names of its contributors
  30  *    may be used to endorse or promote products derived from this software
  31  *    without specific prior written permission.
  32  *
  33  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  34  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  35  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  36  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  37  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  38  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  39  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  40  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  41  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  42  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  43  * SUCH DAMAGE.
  44  *
  45  *      @(#)dumprestore.h       8.2 (Berkeley) 1/21/94
  46  */
  47
  48 #ifndef _DUMPRESTORE_H_
  49 #define _DUMPRESTORE_H_
  50
  51 /*
  52  * TP_BSIZE is the size of file blocks on the dump tapes.
  53  * Note that TP_BSIZE must be a multiple of DEV_BSIZE.
  54  *
  55  * NTREC is the number of TP_BSIZE blocks that are written
  56  * in each tape record. HIGHDENSITYTREC is the number of
  57  * TP_BSIZE blocks that are written in each tape record on
  58  * 6250 BPI or higher density tapes.
  59  *
  60  * TP_NINDIR is the number of indirect pointers in a TS_INODE
  61  * or TS_ADDR record. Note that it must be a power of two.
  62  */
  63 #define TP_BSIZE        1024
  64 #define NTREC           10
  65 #define HIGHDENSITYTREC 32
  66 #define TP_NINDIR       (TP_BSIZE/2)
  67 #define LBLSIZE         16
  68 #define NAMELEN         64
  69
  70 #define OFS_MAGIC       (int)60011
  71 #define NFS_MAGIC       (int)60012
  72 #define CHECKSUM        (int)84446
  73
  74 union u_spcl {
  75         char dummy[TP_BSIZE];
  76         struct  s_spcl {
  77                 __s32   c_type;             /* record type (see below) */
  78                 __u32   c_date;             /* date of this dump */
  79                 __u32   c_ddate;            /* date of previous dump */
  80                 __s32   c_volume;           /* dump volume number */
  81                 daddr_t c_tapea;            /* logical block of this record */
  82                 ino_t   c_inumber;          /* number of inode */
  83                 __s32   c_magic;            /* magic number (see above) */
  84                 __s32   c_checksum;         /* record checksum */
  85 #ifdef  __linux__
  86                 struct  new_bsd_inode c_dinode;
  87 #else
  88                 struct  dinode  c_dinode;   /* ownership and mode of inode */
  89 #endif
  90                 __s32   c_count;            /* number of valid c_addr entries */
  91                 char    c_addr[TP_NINDIR];  /* 1 => data; 0 => hole in inode */
  92                 char    c_label[LBLSIZE];   /* dump label */
  93                 __s32   c_level;            /* level of this dump */
  94                 char    c_filesys[NAMELEN]; /* name of dumpped file system */
  95                 char    c_dev[NAMELEN];     /* name of dumpped device */
  96                 char    c_host[NAMELEN];    /* name of dumpped host */
  97                 __s32   c_flags;            /* additional information */
  98                 __s32   c_firstrec;         /* first record on volume */
  99                 __s32   c_spare[32];        /* reserved for future uses */
 100         } s_spcl;
 101 } u_spcl;
 102 #define spcl u_spcl.s_spcl
 103 /*
 104  * special record types
 105  */
 106 #define TS_TAPE         1       /* dump tape header */
 107 #define TS_INODE        2       /* beginning of file record */
 108 #define TS_ADDR         4       /* continuation of file record */
 109 #define TS_BITS         3       /* map of inodes on tape */
 110 #define TS_CLRI         6       /* map of inodes deleted since last dump */
 111 #define TS_END          5       /* end of volume marker */
 112
 113 /*
 114  * flag values
 115  */
 116 #define DR_NEWHEADER    0x0001  /* new format tape header */
 117 #define DR_NEWINODEFMT  0x0002  /* new format inodes on tape */
 118
 119 #define DUMPOUTFMT      "%-16s %c %s"           /* for printf */
 120                                                 /* name, level, ctime(date) */
 121 #define DUMPINFMT       "%16s %c %[^\n]\n"      /* inverse for scanf */
 122
 123 #endif /* !_DUMPRESTORE_H_ */