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 * 4. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * @(#)dump.h 8.2 (Berkeley) 4/28/95 30 * 31 * $FreeBSD$ 32 */ 33 34/* 35 * Dump maps used to describe what is to be dumped. 36 */ 37int mapsize; /* size of the state maps */ 38char *usedinomap; /* map of allocated inodes */ 39char *dumpdirmap; /* map of directories to be dumped */ 40char *dumpinomap; /* map of files to be dumped */ 41/* 42 * Map manipulation macros. 43 */ 44#define SETINO(ino, map) \ 45 map[(u_int)((ino) - 1) / CHAR_BIT] |= \ 46 1 << ((u_int)((ino) - 1) % CHAR_BIT) 47#define CLRINO(ino, map) \ 48 map[(u_int)((ino) - 1) / CHAR_BIT] &= \ 49 ~(1 << ((u_int)((ino) - 1) % CHAR_BIT)) 50#define TSTINO(ino, map) \ 51 (map[(u_int)((ino) - 1) / CHAR_BIT] & \ 52 (1 << ((u_int)((ino) - 1) % CHAR_BIT))) 53 54/* 55 * All calculations done in 0.1" units! 56 */ 57char *disk; /* name of the disk file */ 58char *tape; /* name of the tape file */ 59char *popenout; /* popen(3) per-"tape" command */ 60char *dumpdates; /* name of the file containing dump date information*/ 61char *temp; /* name of the file for doing rewrite of dumpdates */ 62int lastlevel; /* dump level of previous dump */ 63int level; /* dump level of this dump */ 64int uflag; /* update flag */ 65int diskfd; /* disk file descriptor */ 66int tapefd; /* tape file descriptor */ 67int pipeout; /* true => output to standard output */ 68ino_t curino; /* current inumber; used globally */ 69int newtape; /* new tape flag */ 70int density; /* density in 0.1" units */ 71long tapesize; /* estimated tape size, blocks */ 72long tsize; /* tape size in 0.1" units */ 73long asize; /* number of 0.1" units written on current tape */ 74int etapes; /* estimated number of tapes */ 75int nonodump; /* if set, do not honor UF_NODUMP user flags */ 76int unlimited; /* if set, write to end of medium */ 77int cachesize; /* size of block cache in bytes */ 78int rsync_friendly; /* be friendly with rsync */ 79 80int notify; /* notify operator flag */ 81int blockswritten; /* number of blocks written on current tape */ 82int tapeno; /* current tape number */ 83time_t tstart_writing; /* when started writing the first tape block */ 84time_t tend_writing; /* after writing the last tape block */ 85int passno; /* current dump pass number */ 86struct fs *sblock; /* the file system super block */ 87char sblock_buf[MAXBSIZE]; 88long dev_bsize; /* block size of underlying disk device */ 89int dev_bshift; /* log2(dev_bsize) */ 90int tp_bshift; /* log2(TP_BSIZE) */ 91 92/* operator interface functions */ 93void broadcast(const char *message); 94void infosch(int); 95void lastdump(int arg); /* int should be char */ 96void msg(const char *fmt, ...) __printflike(1, 2); 97void msgtail(const char *fmt, ...) __printflike(1, 2); 98int query(const char *question); 99void quit(const char *fmt, ...) __printflike(1, 2); 100void timeest(void); 101time_t unctime(char *str); 102 103/* mapping rouintes */ 104union dinode; 105int mapfiles(ino_t maxino, long *tapesize); 106int mapdirs(ino_t maxino, long *tapesize); 107 108/* file dumping routines */ 109void bread(ufs2_daddr_t blkno, char *buf, int size); 110ssize_t cread(int fd, void *buf, size_t nbytes, off_t offset); 111void dumpino(union dinode *dp, ino_t ino); 112void dumpmap(char *map, int type, ino_t ino); 113void writeheader(ino_t ino); 114 115/* tape writing routines */ 116int alloctape(void); 117void close_rewind(void); 118void dumpblock(ufs2_daddr_t blkno, int size); 119void startnewtape(int top); 120void trewind(void); 121void writerec(char *dp, int isspcl); 122 123void Exit(int status) __dead2; 124void dumpabort(int signo) __dead2; 125void dump_getfstab(void); 126 127char *rawname(char *cp); 128union dinode *getino(ino_t inum, int *mode); 129 130/* rdump routines */ 131#ifdef RDUMP 132void rmtclose(void); 133int rmthost(const char *host); 134int rmtopen(const char *tape, int mode); 135int rmtwrite(const char *buf, int count); 136#endif /* RDUMP */ 137 138void interrupt(int signo); /* in case operator bangs on console */ 139 140/* 141 * Exit status codes 142 */ 143#define X_FINOK 0 /* normal exit */ 144#define X_STARTUP 1 /* startup error */ 145#define X_REWRITE 2 /* restart writing from the check point */ 146#define X_ABORT 3 /* abort dump; don't attempt checkpointing */ 147 148#define OPGRENT "operator" /* group entry to notify */ 149 150struct fstab *fstabsearch(const char *key); /* search fs_file and fs_spec */ 151 152#ifndef NAME_MAX 153#define NAME_MAX 255 154#endif 155 156/* 157 * The contents of the file _PATH_DUMPDATES is maintained both on 158 * a linked list, and then (eventually) arrayified. 159 */ 160struct dumpdates { 161 char dd_name[NAME_MAX+3]; 162 int dd_level; 163 time_t dd_ddate; 164}; 165int nddates; /* number of records (might be zero) */ 166struct dumpdates **ddatev; /* the arrayfied version */ 167void initdumptimes(void); 168void getdumptime(void); 169void putdumptime(void); 170#define ITITERATE(i, ddp) \ 171 if (ddatev != NULL) \ 172 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 173 174#define DUMPFMTLEN 53 /* max device pathname length */ 175#define DUMPOUTFMT "%-*s %d %s" /* for printf */ 176 /* name, level, ctime(date) */ 177#define DUMPINFMT "%s %d %[^\n]\n" /* inverse for scanf */ 178 179void sig(int signo); 180 181#ifndef _PATH_FSTAB 182#define _PATH_FSTAB "/etc/fstab" 183#endif 184