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 * %sccs.include.redist.c% 11 * 12 * @(#)dumprestore.h 8.2 (Berkeley) 01/21/94 13 */ 14 15 #ifndef _DUMPRESTORE_H_ 16 #define _DUMPRESTORE_H_ 17 18 /* 19 * TP_BSIZE is the size of file blocks on the dump tapes. 20 * Note that TP_BSIZE must be a multiple of DEV_BSIZE. 21 * 22 * NTREC is the number of TP_BSIZE blocks that are written 23 * in each tape record. HIGHDENSITYTREC is the number of 24 * TP_BSIZE blocks that are written in each tape record on 25 * 6250 BPI or higher density tapes. 26 * 27 * TP_NINDIR is the number of indirect pointers in a TS_INODE 28 * or TS_ADDR record. Note that it must be a power of two. 29 */ 30 #define TP_BSIZE 1024 31 #define NTREC 10 32 #define HIGHDENSITYTREC 32 33 #define TP_NINDIR (TP_BSIZE/2) 34 #define LBLSIZE 16 35 #define NAMELEN 64 36 37 #define OFS_MAGIC (int)60011 38 #define NFS_MAGIC (int)60012 39 #define CHECKSUM (int)84446 40 41 union u_spcl { 42 char dummy[TP_BSIZE]; 43 struct s_spcl { 44 long c_type; /* record type (see below) */ 45 time_t c_date; /* date of this dump */ 46 time_t c_ddate; /* date of previous dump */ 47 long c_volume; /* dump volume number */ 48 daddr_t c_tapea; /* logical block of this record */ 49 ino_t c_inumber; /* number of inode */ 50 long c_magic; /* magic number (see above) */ 51 long c_checksum; /* record checksum */ 52 struct dinode c_dinode; /* ownership and mode of inode */ 53 long c_count; /* number of valid c_addr entries */ 54 char c_addr[TP_NINDIR]; /* 1 => data; 0 => hole in inode */ 55 char c_label[LBLSIZE]; /* dump label */ 56 long c_level; /* level of this dump */ 57 char c_filesys[NAMELEN]; /* name of dumpped file system */ 58 char c_dev[NAMELEN]; /* name of dumpped device */ 59 char c_host[NAMELEN]; /* name of dumpped host */ 60 long c_flags; /* additional information */ 61 long c_firstrec; /* first record on volume */ 62 long c_spare[32]; /* reserved for future uses */ 63 } s_spcl; 64 } u_spcl; 65 #define spcl u_spcl.s_spcl 66 /* 67 * special record types 68 */ 69 #define TS_TAPE 1 /* dump tape header */ 70 #define TS_INODE 2 /* beginning of file record */ 71 #define TS_ADDR 4 /* continuation of file record */ 72 #define TS_BITS 3 /* map of inodes on tape */ 73 #define TS_CLRI 6 /* map of inodes deleted since last dump */ 74 #define TS_END 5 /* end of volume marker */ 75 76 /* 77 * flag values 78 */ 79 #define DR_NEWHEADER 0x0001 /* new format tape header */ 80 #define DR_NEWINODEFMT 0x0002 /* new format inodes on tape */ 81 82 #define DUMPOUTFMT "%-16s %c %s" /* for printf */ 83 /* name, level, ctime(date) */ 84 #define DUMPINFMT "%16s %c %[^\n]\n" /* inverse for scanf */ 85 86 #endif /* !_DUMPRESTORE_H_ */ 87