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git.wh0rd.org - dump.git/blob - dump/dump.h
2 * Ported to Linux's Second Extended File System as part of the
3 * dump and restore backup suit
4 * Remy Card <card@Linux.EU.Org>, 1994-1997
5 * Stelian Pop <pop@cybercable.fr>, 1999
7 * $Id: dump.h,v 1.8 1999/11/21 16:01:47 tiniou Exp $
11 * Copyright (c) 1980, 1993
12 * The Regents of the University of California. All rights reserved.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 * 3. All advertising materials mentioning features or use of this software
23 * must display the following acknowledgement:
24 * This product includes software developed by the University of
25 * California, Berkeley and its contributors.
26 * 4. Neither the name of the University nor the names of its contributors
27 * may be used to endorse or promote products derived from this software
28 * without specific prior written permission.
30 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
31 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
32 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
34 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
43 #define MAXINOPB (MAXBSIZE / sizeof(struct dinode))
44 #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t))
51 * Dump maps used to describe what is to be dumped.
53 int mapsize
; /* size of the state maps */
54 char *usedinomap
; /* map of allocated inodes */
55 char *dumpdirmap
; /* map of directories to be dumped */
56 char *dumpinomap
; /* map of files to be dumped */
58 * Map manipulation macros.
60 #define SETINO(ino, map) \
61 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY)
62 #define CLRINO(ino, map) \
63 map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY))
64 #define TSTINO(ino, map) \
65 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY)))
68 * All calculations done in 0.1" units!
70 char *disk
; /* name of the disk file */
71 char tape
[NAME_MAX
]; /* name of the tape file */
72 char *tapeprefix
; /* prefix of the tape file */
73 char *dumpdates
; /* name of the file containing dump date information*/
74 char *temp
; /* name of the file for doing rewrite of dumpdates */
75 char lastlevel
; /* dump level of previous dump */
76 char level
; /* dump level of this dump */
77 int uflag
; /* update flag */
78 int Mflag
; /* multi-volume flag */
79 int diskfd
; /* disk file descriptor */
80 int tapefd
; /* tape file descriptor */
81 int pipeout
; /* true => output to standard output */
82 ino_t curino
; /* current inumber; used globally */
83 int newtape
; /* new tape flag */
84 int density
; /* density in 0.1" units */
85 long tapesize
; /* estimated tape size, blocks */
86 long tsize
; /* tape size in 0.1" units */
87 long asize
; /* number of 0.1" units written on current tape */
88 int etapes
; /* estimated number of tapes */
89 int nonodump
; /* if set, do not honor UF_NODUMP user flags */
90 int unlimited
; /* if set, write to end of medium */
92 int notify
; /* notify operator flag */
93 int blockswritten
; /* number of blocks written on current tape */
94 int tapeno
; /* current tape number */
95 time_t tstart_writing
; /* when started writing the first tape block */
96 time_t tend_writing
; /* after writing the last tape block */
100 struct fs
*sblock
; /* the file system super block */
101 char sblock_buf
[MAXBSIZE
];
103 long xferrate
; /* averaged transfer rate of all volumes */
104 long dev_bsize
; /* block size of underlying disk device */
105 int dev_bshift
; /* log2(dev_bsize) */
106 int tp_bshift
; /* log2(TP_BSIZE) */
109 #include <sys/cdefs.h>
112 /* operator interface functions */
113 void broadcast
__P((const char *message
));
114 time_t do_stats
__P((void));
115 void lastdump
__P((char arg
));
116 void msg
__P((const char *fmt
, ...));
117 void msgtail
__P((const char *fmt
, ...));
118 int query
__P((const char *question
));
119 void quit
__P((const char *fmt
, ...));
120 void set_operators
__P((void));
122 void statussig
__P((int signo
));
124 void timeest
__P((void));
125 time_t unctime
__P((const char *str
));
127 /* mapping rouintes */
129 long blockest
__P((struct dinode
*dp
));
130 int mapfiles
__P((ino_t maxino
, long *tapesize
));
132 int mapfilesfromdir
__P((ino_t maxino
, long *tapesize
, char *directory
));
134 int mapdirs
__P((ino_t maxino
, long *tapesize
));
136 /* file dumping routines */
137 void blksout
__P((daddr_t
*blkp
, int frags
, ino_t ino
));
138 void bread
__P((daddr_t blkno
, char *buf
, int size
));
139 void dumpino
__P((struct dinode
*dp
, ino_t ino
));
141 void dumpdirino
__P((struct dinode
*dp
, ino_t ino
));
143 void dumpmap
__P((char *map
, int type
, ino_t ino
));
144 void writeheader
__P((ino_t ino
));
146 /* tape writing routines */
147 int alloctape
__P((void));
148 void close_rewind
__P((void));
149 void dumpblock
__P((daddr_t blkno
, int size
));
150 void startnewtape
__P((int top
));
151 void trewind
__P((void));
152 void writerec
__P((const void *dp
, int isspcl
));
154 void Exit
__P((int status
));
155 void dumpabort
__P((int signo
));
156 void getfstab
__P((void));
158 char *rawname
__P((char *cp
));
159 struct dinode
*getino
__P((ino_t inum
));
163 int rmthost
__P((const char *host
));
164 int rmtopen
__P((const char *tape
, int mode
));
165 void rmtclose
__P((void));
166 int rmtread
__P((char *buf
, size_t count
));
167 int rmtwrite
__P((const char *buf
, size_t count
));
168 int rmtseek
__P((int offset
, int pos
));
169 struct mtget
* rmtstatus
__P((void));
170 int rmtioctl
__P((int cmd
, int count
));
173 void interrupt
__P((int signo
)); /* in case operator bangs on console */
178 #define X_FINOK 0 /* normal exit */
179 #define X_STARTUP 1 /* startup error */
180 #define X_REWRITE 2 /* restart writing from the check point */
181 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */
183 #define OPGRENT "operator" /* group entry to notify */
185 #define DIALUP "ttyS" /* prefix for dialups */
187 #define DIALUP "ttyd" /* prefix for dialups */
190 struct fstab
*fstabsearch
__P((const char *key
)); /* search fs_file and fs_spec */
192 struct fstab
*fstabsearchdir
__P((const char *key
, char *dir
)); /* search fs_file and fs_spec */
196 * The contents of the file _PATH_DUMPDATES is maintained both on
197 * a linked list, and then (eventually) arrayified.
200 char dd_name
[NAME_MAX
+3];
205 struct dumpdates dt_value
;
206 struct dumptime
*dt_next
;
208 struct dumptime
*dthead
; /* head of the list version */
209 int nddates
; /* number of records (might be zero) */
210 int ddates_in
; /* we have read the increment file */
211 struct dumpdates
**ddatev
; /* the arrayfied version */
212 void initdumptimes
__P((int));
213 void getdumptime
__P((int));
214 void putdumptime
__P((void));
215 #define ITITERATE(i, ddp) \
216 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i])
218 void sig
__P((int signo
));
221 * Compatibility with old systems.
224 #include <sys/file.h>
225 #define strchr(a,b) index(a,b)
226 #define strrchr(a,b) rindex(a,b)
227 extern char *strdup(), *ctime();
228 extern int read(), write();
233 #define DUMP_CURRENT_REV 1
235 int dump_fs_open(const char *disk
, ext2_filsys
*fs
);
240 #define _PATH_UTMP "/etc/utmp"
243 #define _PATH_FSTAB "/etc/fstab"
248 extern char *calloc();
249 extern char *malloc();
251 extern char *strcpy();
252 extern char *strncpy();
253 extern char *strcat();
254 extern time_t time();
255 extern void endgrent();
257 extern off_t
lseek();
258 extern const char *strerror();