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 */ 73 typedef uint32_t dump_ino_t; 74 75 extern 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 dumpped file system */ 118 char c_dev[NAMELEN]; /* name of dumpped device */ 119 char c_host[NAMELEN]; /* name of dumpped 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_ */ 141