1/*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1980, 1993
5 * The Regents of the University of California. All rights reserved.
6 * (c) UNIX System Laboratories, Inc.
7 * All or some portions of this file are derived from material licensed
8 * to the University of California by American Telephone and Telegraph
9 * Co. or Unix System Laboratories, Inc. and are reproduced herein with
10 * the permission of UNIX System Laboratories, Inc.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 * notice, this list of conditions and the following disclaimer in the
19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
23 *
24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * SUCH DAMAGE.
35 */
36
37#ifndef _PROTOCOLS_DUMPRESTORE_H_
38#define _PROTOCOLS_DUMPRESTORE_H_
39
40/*
41 * TP_BSIZE is the size of file blocks on the dump tapes.
42 * Note that TP_BSIZE must be a multiple of DEV_BSIZE.
43 *
44 * NTREC is the number of TP_BSIZE blocks that are written
45 * in each tape record. HIGHDENSITYTREC is the number of
46 * TP_BSIZE blocks that are written in each tape record on
47 * 6250 BPI or higher density tapes.
48 *
49 * TP_NINDIR is the number of indirect pointers in a TS_INODE
50 * or TS_ADDR record. Note that it must be a power of two.
51 */
52#define TP_BSIZE 1024
53#define NTREC 10
54#define HIGHDENSITYTREC 32
55#define TP_NINDIR (TP_BSIZE/2)
56#define LBLSIZE 16
57#define NAMELEN 64
58
59#define OFS_MAGIC (int)60011
60#define NFS_MAGIC (int)60012
61#ifndef FS_UFS2_MAGIC
62#define FS_UFS2_MAGIC (int)0x19540119
63#endif
64#define CHECKSUM (int)84446
65
66/*
67 * Since ino_t size is changing to 64-bits, yet we desire this structure to
68 * remain compatible with exiting dump formats, we do NOT use ino_t here,
69 * but rather define a 32-bit type in its place. At some point, it may be
70 * necessary to use some of the c_spare[] in order to fully support 64-bit
71 * inode numbers.
72 */
73typedef uint32_t dump_ino_t;
74
75extern union u_spcl {
76 char dummy[TP_BSIZE];
77 struct s_spcl {
78 int32_t c_type; /* record type (see below) */
79 int32_t c_old_date; /* date of this dump */
80 int32_t c_old_ddate; /* date of previous dump */
81 int32_t c_volume; /* dump volume number */
82 int32_t c_old_tapea; /* logical block of this record */
83 dump_ino_t c_inumber; /* number of inode */
84 int32_t c_magic; /* magic number (see above) */
85 int32_t c_checksum; /* record checksum */
86 /*
87 * Start old dinode structure, expanded for binary
88 * compatibility with UFS1.
89 */
90 u_int16_t c_mode; /* file mode */
91 int16_t c_spare1[3]; /* old nlink, ids */
92 u_int64_t c_size; /* file byte count */
93 int32_t c_old_atime; /* old last access time, seconds */
94 int32_t c_atimensec; /* last access time, nanoseconds */
95 int32_t c_old_mtime; /* old last modified time, secs */
96 int32_t c_mtimensec; /* last modified time, nanosecs */
97 int32_t c_spare2[2]; /* old ctime */
98 int32_t c_rdev; /* for devices, device number */
99 int32_t c_birthtimensec; /* creation time, nanosecs */
100 int64_t c_birthtime; /* creation time, seconds */
101 int64_t c_atime; /* last access time, seconds */
102 int64_t c_mtime; /* last modified time, seconds */
103 int32_t c_extsize; /* external attribute size */
104 int32_t c_spare4[6]; /* old block pointers */
105 u_int32_t c_file_flags; /* status flags (chflags) */
106 int32_t c_spare5[2]; /* old blocks, generation number */
107 u_int32_t c_uid; /* file owner */
108 u_int32_t c_gid; /* file group */
109 int32_t c_spare6[2]; /* previously unused spares */
110 /*
111 * End old dinode structure.
112 */
113 int32_t c_count; /* number of valid c_addr entries */
114 char c_addr[TP_NINDIR]; /* 1 => data; 0 => hole in inode */
115 char c_label[LBLSIZE]; /* dump label */
116 int32_t c_level; /* level of this dump */
117 char c_filesys[NAMELEN]; /* name of dumped file system */
118 char c_dev[NAMELEN]; /* name of dumped device */
119 char c_host[NAMELEN]; /* name of dumped host */
120 int32_t c_flags; /* additional information */
121 int32_t c_old_firstrec; /* first record on volume */
122 int64_t c_date; /* date of this dump */
123 int64_t c_ddate; /* date of previous dump */
124 int64_t c_tapea; /* logical block of this record */
125 int64_t c_firstrec; /* first record on volume */
126 int32_t c_spare[24]; /* reserved for future uses */
127 } s_spcl;
128} u_spcl;
129#define spcl u_spcl.s_spcl
130/*
131 * special record types
132 */
133#define TS_TAPE 1 /* dump tape header */
134#define TS_INODE 2 /* beginning of file record */
135#define TS_ADDR 4 /* continuation of file record */
136#define TS_BITS 3 /* map of inodes on tape */
137#define TS_CLRI 6 /* map of inodes deleted since last dump */
138#define TS_END 5 /* end of volume marker */
139
140#endif /* !_DUMPRESTORE_H_ */