91 lines
3.0 KiB
C
91 lines
3.0 KiB
C
/*
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* Copyright (c) 1980 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*
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* @(#)dumprestore.h 1.1 92/07/30 SMI from UCB 5.3 1/28/87
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*/
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#ifndef _protocols_dumprestore_h
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#define _protocols_dumprestore_h
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/*
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* TP_BSIZE is the size of file blocks on the dump tapes.
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* Note that TP_BSIZE must be a multiple of DEV_BSIZE.
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*
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* NTREC is the number of TP_BSIZE blocks that are written
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* in each tape record. HIGHDENSITYTREC is the number of
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* TP_BSIZE blocks that are written in each tape record on
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* 6250 BPI or higher density tapes. CARTRIDGETREC is the
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* number of TP_BSIZE blocks that are written in each tape
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* record on cartridge tapes.
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*
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* TP_NINDIR is the number of indirect pointers in a TS_INODE
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* or TS_ADDR record. Note that it must be a power of two.
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*/
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#define TP_BSIZE 1024
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#define NTREC 10
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#define HIGHDENSITYTREC 32
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#define CARTRIDGETREC 63
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#define TP_NINDIR (TP_BSIZE/2)
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#define TP_NINOS (TP_NINDIR / sizeof(long))
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#define LBLSIZE 16
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#define NAMELEN 64
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#define OFS_MAGIC (int)60011
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#define NFS_MAGIC (int)60012
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#define CHECKSUM (int)84446
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union u_data {
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char s_addrs[TP_NINDIR]; /* 1 => data; 0 => hole in inode */
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long s_inos[TP_NINOS]; /* starting inodes on tape */
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};
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union u_spcl {
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char dummy[TP_BSIZE];
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struct s_spcl {
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long c_type; /* record type (see below) */
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time_t c_date; /* date of previous dump */
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time_t c_ddate; /* date of this dump */
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long c_volume; /* dump volume number */
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daddr_t c_tapea; /* logical block of this record */
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ino_t c_inumber; /* number of inode */
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long c_magic; /* magic number (see above) */
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long c_checksum; /* record checksum */
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struct dinode c_dinode; /* ownership and mode of inode */
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long c_count; /* number of valid c_addr entries */
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union u_data c_data; /* see union above */
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char c_label[LBLSIZE]; /* dump label */
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long c_level; /* level of this dump */
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char c_filesys[NAMELEN]; /* name of dumpped file system */
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char c_dev[NAMELEN]; /* name of dumpped device */
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char c_host[NAMELEN]; /* name of dumpped host */
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long c_flags; /* additional information */
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} s_spcl;
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} u_spcl;
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#define spcl u_spcl.s_spcl
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#define c_addr c_data.s_addrs
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#define c_inos c_data.s_inos
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/*
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* special record types
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*/
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#define TS_TAPE 1 /* dump tape header */
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#define TS_INODE 2 /* beginning of file record */
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#define TS_ADDR 4 /* continuation of file record */
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#define TS_BITS 3 /* map of inodes on tape */
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#define TS_CLRI 6 /* map of inodes deleted since last dump */
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#define TS_EOM 7 /* end of medium marker (for floppy) */
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#define TS_END 5 /* end of volume marker */
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/*
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* flag values
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*/
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#define DR_NEWHEADER 1 /* new format tape header */
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#define DR_INODEINFO 2 /* header contains starting inode info */
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#define DUMPOUTFMT "%-16s %c %s" /* for printf */
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/* name, incno, ctime(date) */
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#define DUMPINFMT "%16s %c %[^\n]\n" /* inverse for scanf */
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#endif /*!_protocols_dumprestore_h*/
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