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. 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 */ 37 int mapsize; /* size of the state maps */ 38 char *usedinomap; /* map of allocated inodes */ 39 char *dumpdirmap; /* map of directories to be dumped */ 40 char *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 */ 57 char *disk; /* name of the disk file */ 58 char *tape; /* name of the tape file */ 59 char *popenout; /* popen(3) per-"tape" command */ 60 char *dumpdates; /* name of the file containing dump date information*/ 61 char *temp; /* name of the file for doing rewrite of dumpdates */ 62 int lastlevel; /* dump level of previous dump */ 63 int level; /* dump level of this dump */ 64 int uflag; /* update flag */ 65 int diskfd; /* disk file descriptor */ 66 int tapefd; /* tape file descriptor */ 67 int pipeout; /* true => output to standard output */ 68 ino_t curino; /* current inumber; used globally */ 69 int newtape; /* new tape flag */ 70 int density; /* density in 0.1" units */ 71 long tapesize; /* estimated tape size, blocks */ 72 long tsize; /* tape size in 0.1" units */ 73 long asize; /* number of 0.1" units written on current tape */ 74 int etapes; /* estimated number of tapes */ 75 int nonodump; /* if set, do not honor UF_NODUMP user flags */ 76 int unlimited; /* if set, write to end of medium */ 77 int cachesize; /* size of block cache in bytes */ 78 int rsync_friendly; /* be friendly with rsync */ 79 80 int notify; /* notify operator flag */ 81 int blockswritten; /* number of blocks written on current tape */ 82 int tapeno; /* current tape number */ 83 time_t tstart_writing; /* when started writing the first tape block */ 84 time_t tend_writing; /* after writing the last tape block */ 85 int passno; /* current dump pass number */ 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 /* operator interface functions */ 93 void broadcast(const char *message); 94 void infosch(int); 95 void lastdump(int arg); /* int should be char */ 96 void msg(const char *fmt, ...) __printflike(1, 2); 97 void msgtail(const char *fmt, ...) __printflike(1, 2); 98 int query(const char *question); 99 void quit(const char *fmt, ...) __printflike(1, 2); 100 void timeest(void); 101 time_t unctime(char *str); 102 103 /* mapping rouintes */ 104 union dinode; 105 int mapfiles(ino_t maxino, long *tapesize); 106 int mapdirs(ino_t maxino, long *tapesize); 107 108 /* file dumping routines */ 109 void bread(ufs2_daddr_t blkno, char *buf, int size); 110 ssize_t cread(int fd, void *buf, size_t nbytes, off_t offset); 111 void dumpino(union dinode *dp, ino_t ino); 112 void dumpmap(char *map, int type, ino_t ino); 113 void writeheader(ino_t ino); 114 115 /* tape writing routines */ 116 int alloctape(void); 117 void close_rewind(void); 118 void dumpblock(ufs2_daddr_t blkno, int size); 119 void startnewtape(int top); 120 void trewind(void); 121 void writerec(char *dp, int isspcl); 122 123 void Exit(int status) __dead2; 124 void dumpabort(int signo) __dead2; 125 void dump_getfstab(void); 126 127 char *rawname(char *cp); 128 union dinode *getino(ino_t inum, int *mode); 129 130 /* rdump routines */ 131 #ifdef RDUMP 132 void rmtclose(void); 133 int rmthost(const char *host); 134 int rmtopen(const char *tape, int mode); 135 int rmtwrite(const char *buf, int count); 136 #endif /* RDUMP */ 137 138 void 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 */ 149 150 struct 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 */ 160 struct dumpdates { 161 char dd_name[NAME_MAX+3]; 162 int dd_level; 163 time_t dd_ddate; 164 }; 165 int nddates; /* number of records (might be zero) */ 166 struct dumpdates **ddatev; /* the arrayfied version */ 167 void initdumptimes(void); 168 void getdumptime(void); 169 void 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 */ 178 179 void sig(int signo); 180 181 #ifndef _PATH_FSTAB 182 #define _PATH_FSTAB "/etc/fstab" 183 #endif 184