include/protocols/dumprestore.h

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