1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
|
/*
* Ported to Linux's Second Extended File System as part of the
* dump and restore backup suit
* Remy Card <card@Linux.EU.Org>, 1994-1997
* Stelian Pop <stelian@popies.net>, 1999-2000
* Stelian Pop <stelian@popies.net> - Alcve <www.alcove.com>, 2000-2002
*/
/*
* Copyright (c) 1980, 1993
* The Regents of the University of California. All rights reserved.
* (c) UNIX System Laboratories, Inc.
* All or some portions of this file are derived from material licensed
* to the University of California by American Telephone and Telegraph
* Co. or Unix System Laboratories, Inc. and are reproduced herein with
* the permission of UNIX System Laboratories, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _PROTOCOLS_DUMPRESTORE_H_
#define _PROTOCOLS_DUMPRESTORE_H_
#include <config.h>
/*
* TP_BSIZE is the size of file blocks on the dump tapes.
* Note that TP_BSIZE must be a multiple of DEV_BSIZE.
*
* NTREC is the number of TP_BSIZE blocks that are written
* in each tape record. HIGHDENSITYTREC is the number of
* TP_BSIZE blocks that are written in each tape record on
* 6250 BPI or higher density tapes.
*
* TP_NINDIR is the number of indirect pointers in a TS_INODE
* or TS_ADDR record. Note that it must be a power of two.
*/
#define TP_BSIZE 1024
#define NTREC 10
#define HIGHDENSITYTREC 32
#define TP_NINDIR (TP_BSIZE/2)
#define TP_NINOS (TP_NINDIR / sizeof (int32_t))
#define LBLSIZE 16
#define NAMELEN 64
#define OFS_MAGIC (int)60011
#define NFS_MAGIC (int)60012
#define FS_UFS2_MAGIC (int)0x19540119
#define CHECKSUM (int)84446
#ifdef __linux__
typedef u_int32_t dump_ino_t;
#endif
#ifdef sunos
typedef unsigned int dump_ino_t;
#endif
extern union u_data {
char s_addrs[TP_NINDIR]; /* 1 => data; 0 => hole in inode */
int32_t s_inos[TP_NINOS]; /* table of first inode on each volume */
} u_data;
extern union u_spcl {
char dummy[TP_BSIZE];
struct s_spcl {
int32_t c_type; /* record type (see below) */
int32_t c_date; /* date of this dump */
int32_t c_ddate; /* date of previous dump */
int32_t c_volume; /* dump volume number */
u_int32_t c_tapea; /* logical block of this record */
dump_ino_t c_inumber; /* number of inode */
int32_t c_magic; /* magic number (see above) */
int32_t c_checksum; /* record checksum */
#ifdef __linux__
struct new_bsd_inode c_dinode;
#else
#ifdef sunos
struct new_bsd_inode c_dinode;
#else
struct dinode c_dinode; /* ownership and mode of inode */
#endif
#endif
int32_t c_count; /* number of valid c_addr entries */
union u_data c_data; /* see above */
char c_label[LBLSIZE]; /* dump label */
int32_t c_level; /* level of this dump */
char c_filesys[NAMELEN]; /* name of dumpped file system */
char c_dev[NAMELEN]; /* name of dumpped device */
char c_host[NAMELEN]; /* name of dumpped host */
int32_t c_flags; /* additional information */
int32_t c_firstrec; /* first record on volume */
int32_t c_ntrec; /* blocksize on volume */
int32_t c_extattributes; /* additional inode info */
int32_t c_spare[30]; /* reserved for future uses */
} s_spcl;
} u_spcl;
#define spcl u_spcl.s_spcl
#define c_addr c_data.s_addrs
#define c_inos c_data.s_inos
/*
* special record types
*/
#define TS_TAPE 1 /* dump tape header */
#define TS_INODE 2 /* beginning of file record */
#define TS_ADDR 4 /* continuation of file record */
#define TS_BITS 3 /* map of inodes on tape */
#define TS_CLRI 6 /* map of inodes deleted since last dump */
#define TS_END 5 /* end of volume marker */
/*
* flag values
*/
#define DR_NEWHEADER 0x0001 /* new format tape header */
#define DR_NEWINODEFMT 0x0002 /* new format inodes on tape */
#define DR_COMPRESSED 0x0080 /* dump tape is compressed */
#define DR_METAONLY 0x0100 /* only the metadata of the inode has
been dumped */
#define DR_INODEINFO 0x0002 /* TS_END header contains c_inos information */
#define DR_EXTATTRIBUTES 0x8000
/*
* extattributes inode info
*/
#define EXT_REGULAR 0
#define EXT_MACOSFNDRINFO 1
#define EXT_MACOSRESFORK 2
#define EXT_XATTR 3
/*
* compression flags for the tapebuf header.
*/
#define COMPRESS_ZLIB 0
#define COMPRESS_BZLIB 1
#define COMPRESS_LZO 2
/* used for compressed dump tapes */
struct tapebuf {
unsigned int compressed:1;
unsigned int flags:3;
unsigned int length:28;
#ifdef sunos
char buf;
#else
char buf[0]; /* the data */
#endif
};
/* used for EA on tape */
#define EXT2_GOOD_OLD_INODE_SIZE 128
#define EXT2_XATTR_MAGIC 0xEA020000 /* block EA */
#define EXT2_XATTR_MAGIC2 0xEA020001 /* in inode EA */
#endif /* !_DUMPRESTORE_H_ */
|
