1 /*
2  * Copyright (c) 1980 Regents of the University of California.
3  * All rights reserved.
4  *
5  * %sccs.include.redist.c%
6  *
7  *	@(#)dumprestore.h	5.8 (Berkeley) 06/20/92
8  */
9 
10 #ifndef _DUMPRESTORE_H_
11 #define _DUMPRESTORE_H_
12 
13 /*
14  * TP_BSIZE is the size of file blocks on the dump tapes.
15  * Note that TP_BSIZE must be a multiple of DEV_BSIZE.
16  *
17  * NTREC is the number of TP_BSIZE blocks that are written
18  * in each tape record. HIGHDENSITYTREC is the number of
19  * TP_BSIZE blocks that are written in each tape record on
20  * 6250 BPI or higher density tapes.
21  *
22  * TP_NINDIR is the number of indirect pointers in a TS_INODE
23  * or TS_ADDR record. Note that it must be a power of two.
24  */
25 #define TP_BSIZE	1024
26 #define NTREC   	10
27 #define HIGHDENSITYTREC	32
28 #define TP_NINDIR	(TP_BSIZE/2)
29 #define LBLSIZE		16
30 #define NAMELEN		64
31 
32 #define OFS_MAGIC   	(int)60011
33 #define NFS_MAGIC   	(int)60012
34 #define CHECKSUM	(int)84446
35 
36 union u_spcl {
37 	char dummy[TP_BSIZE];
38 	struct	s_spcl {
39 		long	c_type;		    /* record type (see below) */
40 		time_t	c_date;		    /* date of previous dump */
41 		time_t	c_ddate;	    /* date of this dump */
42 		long	c_volume;	    /* dump volume number */
43 		daddr_t	c_tapea;	    /* logical block of this record */
44 		ino_t	c_inumber;	    /* number of inode */
45 		long	c_magic;	    /* magic number (see above) */
46 		long	c_checksum;	    /* record checksum */
47 		struct	dinode	c_dinode;   /* ownership and mode of inode */
48 		long	c_count;	    /* number of valid c_addr entries */
49 		char	c_addr[TP_NINDIR];  /* 1 => data; 0 => hole in inode */
50 		char	c_label[LBLSIZE];   /* dump label */
51 		long	c_level;	    /* level of this dump */
52 		char	c_filesys[NAMELEN]; /* name of dumpped file system */
53 		char	c_dev[NAMELEN];	    /* name of dumpped device */
54 		char	c_host[NAMELEN];    /* name of dumpped host */
55 		long	c_flags;	    /* additional information */
56 		long	c_firstrec;	    /* first record on volume */
57 		long	c_spare[32];	    /* reserved for future uses */
58 	} s_spcl;
59 } u_spcl;
60 #define spcl u_spcl.s_spcl
61 /*
62  * special record types
63  */
64 #define TS_TAPE 	1	/* dump tape header */
65 #define TS_INODE	2	/* beginning of file record */
66 #define TS_ADDR 	4	/* continuation of file record */
67 #define TS_BITS 	3	/* map of inodes on tape */
68 #define TS_CLRI 	6	/* map of inodes deleted since last dump */
69 #define TS_END  	5	/* end of volume marker */
70 
71 /*
72  * flag values
73  */
74 #define DR_NEWHEADER	0x0001	/* new format tape header */
75 #define DR_NEWINODEFMT	0x0002	/* new format inodes on tape */
76 
77 #define	DUMPOUTFMT	"%-16s %c %s"		/* for printf */
78 						/* name, level, ctime(date) */
79 #define	DUMPINFMT	"%16s %c %[^\n]\n"	/* inverse for scanf */
80 
81 #endif /* !_DUMPRESTORE_H_ */
82