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  *
  36  * $FreeBSD$
  37  */
  38
  39 #ifndef _PROTOCOLS_DUMPRESTORE_H_
  40 #define _PROTOCOLS_DUMPRESTORE_H_
  41
  42 /*
  43  * TP_BSIZE is the size of file blocks on the dump tapes.
  44  * Note that TP_BSIZE must be a multiple of DEV_BSIZE.
  45  *
  46  * NTREC is the number of TP_BSIZE blocks that are written
  47  * in each tape record. HIGHDENSITYTREC is the number of
  48  * TP_BSIZE blocks that are written in each tape record on
  49  * 6250 BPI or higher density tapes.
  50  *
  51  * TP_NINDIR is the number of indirect pointers in a TS_INODE
  52  * or TS_ADDR record. Note that it must be a power of two.
  53  */
  54 #define TP_BSIZE        1024
  55 #define NTREC           10
  56 #define HIGHDENSITYTREC 32
  57 #define TP_NINDIR       (TP_BSIZE/2)
  58 #define LBLSIZE         16
  59 #define NAMELEN         64
  60
  61 #define OFS_MAGIC       (int)60011
  62 #define NFS_MAGIC       (int)60012
  63 #ifndef FS_UFS2_MAGIC
  64 #define FS_UFS2_MAGIC   (int)0x19540119
  65 #endif
  66 #define CHECKSUM        (int)84446
  67
  68 /*
  69  * Since ino_t size is changing to 64-bits, yet we desire this structure to
  70  * remain compatible with exiting dump formats, we do NOT use ino_t here,
  71  * but rather define a 32-bit type in its place.  At some point, it may be
  72  * necessary to use some of the c_spare[] in order to fully support 64-bit
  73  * inode numbers.
  74  */
  75 typedef uint32_t dump_ino_t;
  76
  77 union u_spcl {
  78         char dummy[TP_BSIZE];
  79         struct  s_spcl {
  80                 int32_t c_type;             /* record type (see below) */
  81                 int32_t c_old_date;         /* date of this dump */
  82                 int32_t c_old_ddate;        /* date of previous dump */
  83                 int32_t c_volume;           /* dump volume number */
  84                 int32_t c_old_tapea;        /* logical block of this record */
  85                 dump_ino_t c_inumber;       /* number of inode */
  86                 int32_t c_magic;            /* magic number (see above) */
  87                 int32_t c_checksum;         /* record checksum */
  88                 /*
  89                  * Start old dinode structure, expanded for binary
  90                  * compatibility with UFS1.
  91                  */
  92                 u_int16_t c_mode;           /* file mode */
  93                 int16_t c_spare1[3];        /* old nlink, ids */
  94                 u_int64_t c_size;           /* file byte count */
  95                 int32_t c_old_atime;        /* old last access time, seconds */
  96                 int32_t c_atimensec;        /* last access time, nanoseconds */
  97                 int32_t c_old_mtime;        /* old last modified time, secs */
  98                 int32_t c_mtimensec;        /* last modified time, nanosecs */
  99                 int32_t c_spare2[2];        /* old ctime */
 100                 int32_t c_rdev;             /* for devices, device number */
 101                 int32_t c_birthtimensec;    /* creation time, nanosecs */
 102                 int64_t c_birthtime;        /* creation time, seconds */
 103                 int64_t c_atime;            /* last access time, seconds */
 104                 int64_t c_mtime;            /* last modified time, seconds */
 105                 int32_t c_extsize;          /* external attribute size */
 106                 int32_t c_spare4[6];        /* old block pointers */
 107                 u_int32_t c_file_flags;     /* status flags (chflags) */
 108                 int32_t c_spare5[2];        /* old blocks, generation number */
 109                 u_int32_t c_uid;            /* file owner */
 110                 u_int32_t c_gid;            /* file group */
 111                 int32_t c_spare6[2];        /* previously unused spares */
 112                 /*
 113                  * End old dinode structure.
 114                  */
 115                 int32_t c_count;            /* number of valid c_addr entries */
 116                 char    c_addr[TP_NINDIR];  /* 1 => data; 0 => hole in inode */
 117                 char    c_label[LBLSIZE];   /* dump label */
 118                 int32_t c_level;            /* level of this dump */
 119                 char    c_filesys[NAMELEN]; /* name of dumpped file system */
 120                 char    c_dev[NAMELEN];     /* name of dumpped device */
 121                 char    c_host[NAMELEN];    /* name of dumpped host */
 122                 int32_t c_flags;            /* additional information */
 123                 int32_t c_old_firstrec;     /* first record on volume */
 124                 int64_t c_date;             /* date of this dump */
 125                 int64_t c_ddate;            /* date of previous dump */
 126                 int64_t c_tapea;            /* logical block of this record */
 127                 int64_t c_firstrec;         /* first record on volume */
 128                 int32_t c_spare[24];        /* reserved for future uses */
 129         } s_spcl;
 130 } u_spcl;
 131 #define spcl u_spcl.s_spcl
 132 /*
 133  * special record types
 134  */
 135 #define TS_TAPE         1       /* dump tape header */
 136 #define TS_INODE        2       /* beginning of file record */
 137 #define TS_ADDR         4       /* continuation of file record */
 138 #define TS_BITS         3       /* map of inodes on tape */
 139 #define TS_CLRI         6       /* map of inodes deleted since last dump */
 140 #define TS_END          5       /* end of volume marker */
 141
 142 #endif /* !_DUMPRESTORE_H_ */