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>, 1999-2000
7 * $Id: dump.h,v 1.14 2000/11/10 11:48:31 stelian 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
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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))
47 * Dump maps used to describe what is to be dumped.
49 int mapsize; /* size of the state maps */
50 char *usedinomap; /* map of allocated inodes */
51 char *dumpdirmap; /* map of directories to be dumped */
52 char *dumpinomap; /* map of files to be dumped */
54 * Map manipulation macros.
56 #define SETINO(ino, map) \
57 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY)
58 #define CLRINO(ino, map) \
59 map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY))
60 #define TSTINO(ino, map) \
61 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY)))
64 * All calculations done in 0.1" units!
66 char *disk; /* name of the disk file */
67 char tape[MAXPATHLEN]; /* name of the tape file */
68 char *tapeprefix; /* prefix of the tape file */
69 char *dumpdates; /* name of the file containing dump date information*/
70 char lastlevel; /* dump level of previous dump */
71 char level; /* dump level of this dump */
72 int uflag; /* update flag */
73 int Mflag; /* multi-volume flag */
74 char *eot_script; /* end of volume script fiag */
75 int diskfd; /* disk file descriptor */
76 int tapefd; /* tape file descriptor */
77 int pipeout; /* true => output to standard output */
78 ino_t curino; /* current inumber; used globally */
79 int newtape; /* new tape flag */
80 int density; /* density in 0.1" units */
81 long tapesize; /* estimated tape size, blocks */
82 long tsize; /* tape size in 0.1" units */
83 long asize; /* number of 0.1" units written on current tape */
84 int etapes; /* estimated number of tapes */
85 int nonodump; /* if set, do not honor UF_NODUMP user flags */
86 int unlimited; /* if set, write to end of medium */
88 int notify; /* notify operator flag */
89 int blockswritten; /* number of blocks written on current tape */
90 int tapeno; /* current tape number */
91 time_t tstart_writing; /* when started writing the first tape block */
92 time_t tend_writing; /* after writing the last tape block */
96 struct fs *sblock; /* the file system super block */
97 char sblock_buf[MAXBSIZE];
99 long xferrate; /* averaged transfer rate of all volumes */
100 long dev_bsize; /* block size of underlying disk device */
101 int dev_bshift; /* log2(dev_bsize) */
102 int tp_bshift; /* log2(TP_BSIZE) */
105 #include <sys/cdefs.h>
108 /* operator interface functions */
109 void broadcast __P((const char *message));
110 time_t do_stats __P((void));
111 void lastdump __P((char arg));
112 void msg __P((const char *fmt, ...));
113 void msgtail __P((const char *fmt, ...));
114 int query __P((const char *question));
115 void quit __P((const char *fmt, ...));
116 void set_operators __P((void));
118 void statussig __P((int signo));
120 void timeest __P((void));
121 time_t unctime __P((const char *str));
123 /* mapping rouintes */
125 long blockest __P((struct dinode *dp));
126 int mapfiles __P((ino_t maxino, long *tapesize));
128 int mapfilesfromdir __P((ino_t maxino, long *tapesize, char *directory));
130 int mapdirs __P((ino_t maxino, long *tapesize));
132 /* file dumping routines */
133 void blksout __P((daddr_t *blkp, int frags, ino_t ino));
134 void bread __P((daddr_t blkno, char *buf, int size));
135 void dumpino __P((struct dinode *dp, ino_t ino));
137 void dumpdirino __P((struct dinode *dp, ino_t ino));
139 void dumpmap __P((char *map, int type, ino_t ino));
140 void writeheader __P((ino_t ino));
142 /* tape writing routines */
143 int alloctape __P((void));
144 void close_rewind __P((void));
145 void dumpblock __P((daddr_t blkno, int size));
146 void startnewtape __P((int top));
147 time_t trewind __P((void));
148 void writerec __P((const void *dp, int isspcl));
150 void Exit __P((int status));
151 void dumpabort __P((int signo));
152 void getfstab __P((void));
154 char *rawname __P((char *cp));
155 struct dinode *getino __P((ino_t inum));
159 int rmthost __P((const char *host));
160 int rmtopen __P((const char *tape, int mode));
161 void rmtclose __P((void));
162 int rmtread __P((char *buf, size_t count));
163 int rmtwrite __P((const char *buf, size_t count));
164 int rmtseek __P((int offset, int pos));
165 struct mtget * rmtstatus __P((void));
166 int rmtioctl __P((int cmd, int count));
169 void interrupt __P((int signo)); /* in case operator bangs on console */
174 #define X_FINOK 0 /* normal exit */
175 #define X_STARTUP 1 /* startup error */
176 #define X_REWRITE 2 /* restart writing from the check point */
177 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */
179 #define OPGRENT "operator" /* group entry to notify */
181 #define DIALUP "ttyS" /* prefix for dialups */
183 #define DIALUP "ttyd" /* prefix for dialups */
186 struct fstab *fstabsearch __P((const char *key)); /* search fs_file and fs_spec */
188 struct fstab *fstabsearchdir __P((const char *key, char *dir)); /* search fs_file and fs_spec */
192 * The contents of the file _PATH_DUMPDATES is maintained both on
193 * a linked list, and then (eventually) arrayified.
196 char dd_name[MAXPATHLEN+3];
197 struct fstab *dd_fstab;
202 struct dumpdates dt_value;
203 struct dumptime *dt_next;
205 struct dumptime *dthead; /* head of the list version */
206 int nddates; /* number of records (might be zero) */
207 int ddates_in; /* we have read the increment file */
208 struct dumpdates **ddatev; /* the arrayfied version */
209 void initdumptimes __P((int));
210 void getdumptime __P((int));
211 void putdumptime __P((void));
212 #define ITITERATE(i, ddp) \
213 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i])
215 void sig __P((int signo));
218 * Compatibility with old systems.
221 #include <sys/file.h>
222 #define strchr(a,b) index(a,b)
223 #define strrchr(a,b) rindex(a,b)
224 extern char *strdup(), *ctime();
225 extern int read(), write();
230 #define DUMP_CURRENT_REV 1
232 int dump_fs_open(const char *disk, ext2_filsys *fs);
237 #define _PATH_UTMP "/etc/utmp"
240 #define _PATH_FSTAB "/etc/fstab"
245 extern char *calloc();
246 extern char *malloc();
248 extern char *strcpy();
249 extern char *strncpy();
250 extern char *strcat();
251 extern time_t time();
252 extern void endgrent();
254 extern off_t lseek();
255 extern const char *strerror();
259 #define IEXCLUDE_MAXNUM 256 /* max size of inode exclude list */