summaryrefslogtreecommitdiff
path: root/sbin/dump/dump.h
blob: 369e97cdcfad297a2d1d4175a75ee9d944ec89d7 (plain)
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
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
/*	$OpenBSD: dump.h,v 1.3 1996/09/01 13:12:35 deraadt Exp $	*/
/*	$NetBSD: dump.h,v 1.9 1995/03/18 14:54:57 cgd Exp $	*/

/*-
 * Copyright (c) 1980, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by the University of
 *	California, Berkeley and its contributors.
 * 4. 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.
 *
 *	@(#)dump.h	8.1 (Berkeley) 6/5/93
 */

#define MAXINOPB	(MAXBSIZE / sizeof(struct dinode))
#define MAXNINDIR	(MAXBSIZE / sizeof(daddr_t))

/*
 * Dump maps used to describe what is to be dumped.
 */
int	mapsize;	/* size of the state maps */
char	*usedinomap;	/* map of allocated inodes */
char	*dumpdirmap;	/* map of directories to be dumped */
char	*dumpinomap;	/* map of files to be dumped */
/*
 * Map manipulation macros.
 */
#define	SETINO(ino, map) \
	map[(u_int)((ino) - 1) / NBBY] |=  1 << ((u_int)((ino) - 1) % NBBY)
#define	CLRINO(ino, map) \
	map[(u_int)((ino) - 1) / NBBY] &=  ~(1 << ((u_int)((ino) - 1) % NBBY))
#define	TSTINO(ino, map) \
	(map[(u_int)((ino) - 1) / NBBY] &  (1 << ((u_int)((ino) - 1) % NBBY)))

/*
 *	All calculations done in 0.1" units!
 */
char	*disk;		/* name of the disk file */
char	*tape;		/* name of the tape file */
char	*dumpdates;	/* name of the file containing dump date information*/
char	*temp;		/* name of the file for doing rewrite of dumpdates */
char	lastlevel;	/* dump level of previous dump */
char	level;		/* dump level of this dump */
int	uflag;		/* update flag */
int	diskfd;		/* disk file descriptor */
int	tapefd;		/* tape file descriptor */
int	pipeout;	/* true => output to standard output */
ino_t	curino;		/* current inumber; used globally */
int	newtape;	/* new tape flag */
int	density;	/* density in 0.1" units */
long	tapesize;	/* estimated tape size, blocks */
long	tsize;		/* tape size in 0.1" units */
long	asize;		/* number of 0.1" units written on current tape */
int	etapes;		/* estimated number of tapes */
int	nonodump;	/* if set, do not honor UF_NODUMP user flags */

int	notify;		/* notify operator flag */
int	blockswritten;	/* number of blocks written on current tape */
int	tapeno;		/* current tape number */
time_t	tstart_writing;	/* when started writing the first tape block */
struct	fs *sblock;	/* the file system super block */
char	sblock_buf[MAXBSIZE];
long	dev_bsize;	/* block size of underlying disk device */
int	dev_bshift;	/* log2(dev_bsize) */
int	tp_bshift;	/* log2(TP_BSIZE) */

#ifndef __P
#include <sys/cdefs.h>
#endif

/* operator interface functions */
void	broadcast __P((char *message));
void	lastdump __P((int arg));	/* int should be char */
void	msg __P((const char *fmt, ...));
void	msgtail __P((const char *fmt, ...));
int	query __P((char *question));
void	quit __P((const char *fmt, ...));
void	set_operators __P((void));
void	timeest __P((void));
time_t	unctime __P((char *str));

/* mapping rouintes */
struct	dinode;
long	blockest __P((struct dinode *dp));
int	mapfiles __P((ino_t maxino, long *tapesize));
int	mapdirs __P((ino_t maxino, long *tapesize));

/* file dumping routines */
void	blksout __P((daddr_t *blkp, int frags, ino_t ino));
void	bread __P((daddr_t blkno, char *buf, int size));	
void	dumpino __P((struct dinode *dp, ino_t ino));
void	dumpmap __P((char *map, int type, ino_t ino));
void	writeheader __P((ino_t ino));

/* tape writing routines */
int	alloctape __P((void));
void	close_rewind __P((void));
void	dumpblock __P((daddr_t blkno, int size));
void	startnewtape __P((int top));
void	trewind __P((void));
void	writerec __P((char *dp, int isspcl));

__dead void Exit __P((int status));
void	dumpabort __P((int signo));
void	getfstab __P((void));

char	*rawname __P((char *cp));
struct	dinode *getino __P((ino_t inum));

/* rdump routines */
#ifdef RDUMP
void	rmtclose __P((void));
int	rmthost __P((char *host));
int	rmtopen __P((char *tape, int mode));
int	rmtwrite __P((char *buf, int count));
#endif /* RDUMP */

void	interrupt __P((int signo));	/* in case operator bangs on console */

/*
 *	Exit status codes
 */
#define	X_FINOK		0	/* normal exit */
#define	X_REWRITE	2	/* restart writing from the check point */
#define	X_ABORT		3	/* abort dump; don't attempt checkpointing */

#define	OPGRENT	"operator"		/* group entry to notify */

struct	fstab *fstabsearch __P((char *key));	/* search fs_file and fs_spec */

#ifndef NAME_MAX
#define NAME_MAX 255
#endif

/*
 *	The contents of the file _PATH_DUMPDATES is maintained both on
 *	a linked list, and then (eventually) arrayified.
 */
struct dumpdates {
	char	dd_name[NAME_MAX+3];
	char	dd_level;
	time_t	dd_ddate;
};
struct dumptime {
	struct	dumpdates dt_value;
	struct	dumptime *dt_next;
};
struct	dumptime *dthead;	/* head of the list version */
int	nddates;		/* number of records (might be zero) */
int	ddates_in;		/* we have read the increment file */
struct	dumpdates **ddatev;	/* the arrayfied version */
void	initdumptimes __P((void));
void	getdumptime __P((void));
void	putdumptime __P((void));
#define	ITITERATE(i, ddp) \
	for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i])

void	sig __P((int signo));

/*
 * Compatibility with old systems.
 */
#ifdef COMPAT
#include <sys/file.h>
#define	strchr(a,b)	index(a,b)
#define	strrchr(a,b)	rindex(a,b)
extern char *strdup(), *ctime();
extern int read(), write();
extern int errno;
#endif

#ifndef	_PATH_UTMP
#define	_PATH_UTMP	"/etc/utmp"
#endif
#ifndef	_PATH_FSTAB
#define	_PATH_FSTAB	"/etc/fstab"
#endif

#ifdef sunos
extern char *calloc();
extern char *malloc();
extern long atol();
extern char *strcpy();
extern char *strncpy();
extern char *strcat();
extern time_t time();
extern void endgrent();
extern __dead void exit();
extern off_t lseek();
extern const char *strerror();
#endif