1 /*- 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)dump.h 8.2 (Berkeley) 4/28/95 34 * 35 * $FreeBSD$ 36 */ 37 38 #define MAXINOPB (MAXBSIZE / sizeof(struct dinode)) 39 #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t)) 40 41 /* 42 * Dump maps used to describe what is to be dumped. 43 */ 44 int mapsize; /* size of the state maps */ 45 char *usedinomap; /* map of allocated inodes */ 46 char *dumpdirmap; /* map of directories to be dumped */ 47 char *dumpinomap; /* map of files to be dumped */ 48 /* 49 * Map manipulation macros. 50 */ 51 #define SETINO(ino, map) \ 52 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) 53 #define CLRINO(ino, map) \ 54 map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY)) 55 #define TSTINO(ino, map) \ 56 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) 57 58 /* 59 * All calculations done in 0.1" units! 60 */ 61 char *disk; /* name of the disk file */ 62 char *tape; /* name of the tape file */ 63 char *dumpdates; /* name of the file containing dump date information*/ 64 char *temp; /* name of the file for doing rewrite of dumpdates */ 65 char lastlevel; /* dump level of previous dump */ 66 char level; /* dump level of this dump */ 67 int uflag; /* update flag */ 68 int diskfd; /* disk file descriptor */ 69 int tapefd; /* tape file descriptor */ 70 int pipeout; /* true => output to standard output */ 71 ino_t curino; /* current inumber; used globally */ 72 int newtape; /* new tape flag */ 73 int density; /* density in 0.1" units */ 74 long tapesize; /* estimated tape size, blocks */ 75 long tsize; /* tape size in 0.1" units */ 76 long asize; /* number of 0.1" units written on current tape */ 77 int etapes; /* estimated number of tapes */ 78 int nonodump; /* if set, do not honor UF_NODUMP user flags */ 79 int unlimited; /* if set, write to end of medium */ 80 81 int notify; /* notify operator flag */ 82 int blockswritten; /* number of blocks written on current tape */ 83 int tapeno; /* current tape number */ 84 time_t tstart_writing; /* when started writing the first tape block */ 85 time_t tend_writing; /* after writing the last tape block */ 86 struct fs *sblock; /* the file system super block */ 87 char sblock_buf[MAXBSIZE]; 88 long dev_bsize; /* block size of underlying disk device */ 89 int dev_bshift; /* log2(dev_bsize) */ 90 int tp_bshift; /* log2(TP_BSIZE) */ 91 92 #ifndef __P 93 #include <sys/cdefs.h> 94 #endif 95 96 /* operator interface functions */ 97 void broadcast __P((char *message)); 98 void lastdump __P((int arg)); /* int should be char */ 99 void msg __P((const char *fmt, ...)) __printflike(1, 2); 100 void msgtail __P((const char *fmt, ...)) __printflike(1, 2); 101 int query __P((char *question)); 102 void quit __P((const char *fmt, ...)) __printflike(1, 2); 103 void timeest __P((void)); 104 time_t unctime __P((char *str)); 105 106 /* mapping rouintes */ 107 struct dinode; 108 long blockest __P((struct dinode *dp)); 109 int mapfiles __P((ino_t maxino, long *tapesize)); 110 int mapdirs __P((ino_t maxino, long *tapesize)); 111 112 /* file dumping routines */ 113 void blksout __P((daddr_t *blkp, int frags, ino_t ino)); 114 void bread __P((daddr_t blkno, char *buf, int size)); 115 void dumpino __P((struct dinode *dp, ino_t ino)); 116 void dumpmap __P((char *map, int type, ino_t ino)); 117 void writeheader __P((ino_t ino)); 118 119 /* tape writing routines */ 120 int alloctape __P((void)); 121 void close_rewind __P((void)); 122 void dumpblock __P((daddr_t blkno, int size)); 123 void startnewtape __P((int top)); 124 void trewind __P((void)); 125 void writerec __P((char *dp, int isspcl)); 126 127 void Exit __P((int status)) __dead2; 128 void dumpabort __P((int signo)); 129 void getfstab __P((void)); 130 131 char *rawname __P((char *cp)); 132 struct dinode *getino __P((ino_t inum)); 133 134 /* rdump routines */ 135 #ifdef RDUMP 136 void rmtclose __P((void)); 137 int rmthost __P((char *host)); 138 int rmtopen __P((char *tape, int mode)); 139 int rmtwrite __P((char *buf, int count)); 140 #endif /* RDUMP */ 141 142 void interrupt __P((int signo)); /* in case operator bangs on console */ 143 144 /* 145 * Exit status codes 146 */ 147 #define X_FINOK 0 /* normal exit */ 148 #define X_STARTUP 1 /* startup error */ 149 #define X_REWRITE 2 /* restart writing from the check point */ 150 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */ 151 152 #define OPGRENT "operator" /* group entry to notify */ 153 154 struct fstab *fstabsearch __P((char *key)); /* search fs_file and fs_spec */ 155 156 #ifndef NAME_MAX 157 #define NAME_MAX 255 158 #endif 159 160 /* 161 * The contents of the file _PATH_DUMPDATES is maintained both on 162 * a linked list, and then (eventually) arrayified. 163 */ 164 struct dumpdates { 165 char dd_name[NAME_MAX+3]; 166 char dd_level; 167 time_t dd_ddate; 168 }; 169 int nddates; /* number of records (might be zero) */ 170 int ddates_in; /* we have read the increment file */ 171 struct dumpdates **ddatev; /* the arrayfied version */ 172 void initdumptimes __P((void)); 173 void getdumptime __P((void)); 174 void putdumptime __P((void)); 175 #define ITITERATE(i, ddp) \ 176 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 177 178 void sig __P((int signo)); 179 180 /* 181 * Compatibility with old systems. 182 */ 183 #ifdef COMPAT 184 #include <sys/file.h> 185 #define strchr(a,b) index(a,b) 186 #define strrchr(a,b) rindex(a,b) 187 extern char *strdup(), *ctime(); 188 extern int read(), write(); 189 extern int errno; 190 #endif 191 192 #ifndef _PATH_UTMP 193 #define _PATH_UTMP "/etc/utmp" 194 #endif 195 #ifndef _PATH_FSTAB 196 #define _PATH_FSTAB "/etc/fstab" 197 #endif 198