include/protocols/dumprestore.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
   7  *
   8  * This file contains Original Code and/or Modifications of Original Code
   9  * as defined in and that are subject to the Apple Public Source License
  10  * Version 2.0 (the 'License'). You may not use this file except in
  11  * compliance with the License. Please obtain a copy of the License at
  12  * http://www.opensource.apple.com/apsl/ and read it before using this
  13  * file.
  14  *
  15  * The Original Code and all software distributed under the License are
  16  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  17  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  18  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  20  * Please see the License for the specific language governing rights and
  21  * limitations under the License.
  22  *
  23  * @APPLE_LICENSE_HEADER_END@
  24  */
  25 /*
  26  * Copyright (c) 1980, 1993
  27  *      The Regents of the University of California.  All rights reserved.
  28  * (c) UNIX System Laboratories, Inc.
  29  * All or some portions of this file are derived from material licensed
  30  * to the University of California by American Telephone and Telegraph
  31  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
  32  * the permission of UNIX System Laboratories, Inc.
  33  *
  34  * Redistribution and use in source and binary forms, with or without
  35  * modification, are permitted provided that the following conditions
  36  * are met:
  37  * 1. Redistributions of source code must retain the above copyright
  38  *    notice, this list of conditions and the following disclaimer.
  39  * 2. Redistributions in binary form must reproduce the above copyright
  40  *    notice, this list of conditions and the following disclaimer in the
  41  *    documentation and/or other materials provided with the distribution.
  42  * 3. All advertising materials mentioning features or use of this software
  43  *    must display the following acknowledgement:
  44  *      This product includes software developed by the University of
  45  *      California, Berkeley and its contributors.
  46  * 4. Neither the name of the University nor the names of its contributors
  47  *    may be used to endorse or promote products derived from this software
  48  *    without specific prior written permission.
  49  *
  50  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  51  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  52  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  53  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  54  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  55  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  56  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  57  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  58  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  59  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  60  * SUCH DAMAGE.
  61  *
  62  *      @(#)dumprestore.h       8.2 (Berkeley) 1/21/94
  63  */
  64
  65 #ifndef _DUMPRESTORE_H_
  66 #define _DUMPRESTORE_H_
  67
  68 /*
  69  * TP_BSIZE is the size of file blocks on the dump tapes.
  70  * Note that TP_BSIZE must be a multiple of DEV_BSIZE.
  71  *
  72  * NTREC is the number of TP_BSIZE blocks that are written
  73  * in each tape record. HIGHDENSITYTREC is the number of
  74  * TP_BSIZE blocks that are written in each tape record on
  75  * 6250 BPI or higher density tapes.
  76  *
  77  * TP_NINDIR is the number of indirect pointers in a TS_INODE
  78  * or TS_ADDR record. Note that it must be a power of two.
  79  */
  80 #define TP_BSIZE        1024
  81 #define NTREC           10
  82 #define HIGHDENSITYTREC 32
  83 #define TP_NINDIR       (TP_BSIZE/2)
  84 #define LBLSIZE         16
  85 #define NAMELEN         64
  86
  87 #define OFS_MAGIC       (int)60011
  88 #define NFS_MAGIC       (int)60012
  89 #define CHECKSUM        (int)84446
  90
  91 union u_spcl {
  92         char dummy[TP_BSIZE];
  93         struct  s_spcl {
  94                 long    c_type;             /* record type (see below) */
  95                 time_t  c_date;             /* date of this dump */
  96                 time_t  c_ddate;            /* date of previous dump */
  97                 long    c_volume;           /* dump volume number */
  98                 daddr_t c_tapea;            /* logical block of this record */
  99                 ino_t   c_inumber;          /* number of inode */
 100                 long    c_magic;            /* magic number (see above) */
 101                 long    c_checksum;         /* record checksum */
 102                 struct  dinode  c_dinode;   /* ownership and mode of inode */
 103                 long    c_count;            /* number of valid c_addr entries */
 104                 char    c_addr[TP_NINDIR];  /* 1 => data; 0 => hole in inode */
 105                 char    c_label[LBLSIZE];   /* dump label */
 106                 long    c_level;            /* level of this dump */
 107                 char    c_filesys[NAMELEN]; /* name of dumpped file system */
 108                 char    c_dev[NAMELEN];     /* name of dumpped device */
 109                 char    c_host[NAMELEN];    /* name of dumpped host */
 110                 long    c_flags;            /* additional information */
 111                 long    c_firstrec;         /* first record on volume */
 112                 long    c_spare[32];        /* reserved for future uses */
 113         } s_spcl;
 114 };
 115
 116 /*
 117  * special record types
 118  */
 119 #define TS_TAPE         1       /* dump tape header */
 120 #define TS_INODE        2       /* beginning of file record */
 121 #define TS_ADDR         4       /* continuation of file record */
 122 #define TS_BITS         3       /* map of inodes on tape */
 123 #define TS_CLRI         6       /* map of inodes deleted since last dump */
 124 #define TS_END          5       /* end of volume marker */
 125
 126 /*
 127  * flag values
 128  */
 129 #define DR_NEWHEADER    0x0001  /* new format tape header */
 130 #define DR_NEWINODEFMT  0x0002  /* new format inodes on tape */
 131
 132 #define DUMPOUTFMT      "%-16s %c %s"           /* for printf */
 133                                                 /* name, level, ctime(date) */
 134 #define DUMPINFMT       "%16s %c %[^\n]\n"      /* inverse for scanf */
 135
 136 #endif /* !_DUMPRESTORE_H_ */