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 int passno; /* current dump pass number */ 87 struct fs *sblock; /* the filesystem super block */ 88 char sblock_buf[MAXBSIZE]; 89 long dev_bsize; /* block size of underlying disk device */ 90 int dev_bshift; /* log2(dev_bsize) */ 91 int tp_bshift; /* log2(TP_BSIZE) */ 92 93 /* operator interface functions */ 94 void broadcast(const char *message); 95 void infosch(int); 96 void lastdump(int arg); /* int should be char */ 97 void msg(const char *fmt, ...) __printflike(1, 2); 98 void msgtail(const char *fmt, ...) __printflike(1, 2); 99 int query(const char *question); 100 void quit(const char *fmt, ...) __printflike(1, 2); 101 void timeest(void); 102 time_t unctime(char *str); 103 104 /* mapping rouintes */ 105 struct dinode; 106 long blockest(struct dinode *dp); 107 int mapfiles(ino_t maxino, long *tapesize); 108 int mapdirs(ino_t maxino, long *tapesize); 109 110 /* file dumping routines */ 111 void blksout(daddr_t *blkp, int frags, ino_t ino); 112 void bread(daddr_t blkno, char *buf, int size); 113 void dumpino(struct dinode *dp, ino_t ino); 114 void dumpmap(char *map, int type, ino_t ino); 115 void writeheader(ino_t ino); 116 117 /* tape writing routines */ 118 int alloctape(void); 119 void close_rewind(void); 120 void dumpblock(daddr_t blkno, int size); 121 void startnewtape(int top); 122 void trewind(void); 123 void writerec(char *dp, int isspcl); 124 125 void Exit(int status) __dead2; 126 void dumpabort(int signo); 127 void getfstab(void); 128 129 char *rawname(char *cp); 130 struct dinode *getino(ino_t inum); 131 132 /* rdump routines */ 133 #ifdef RDUMP 134 void rmtclose(void); 135 int rmthost(const char *host); 136 int rmtopen(const char *tape, int mode); 137 int rmtwrite(const char *buf, int count); 138 #endif /* RDUMP */ 139 140 void interrupt(int signo); /* in case operator bangs on console */ 141 142 /* 143 * Exit status codes 144 */ 145 #define X_FINOK 0 /* normal exit */ 146 #define X_STARTUP 1 /* startup error */ 147 #define X_REWRITE 2 /* restart writing from the check point */ 148 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */ 149 150 #define OPGRENT "operator" /* group entry to notify */ 151 152 struct fstab *fstabsearch(const char *key); /* search fs_file and fs_spec */ 153 154 #ifndef NAME_MAX 155 #define NAME_MAX 255 156 #endif 157 158 /* 159 * The contents of the file _PATH_DUMPDATES is maintained both on 160 * a linked list, and then (eventually) arrayified. 161 */ 162 struct dumpdates { 163 char dd_name[NAME_MAX+3]; 164 char dd_level; 165 time_t dd_ddate; 166 }; 167 int nddates; /* number of records (might be zero) */ 168 int ddates_in; /* we have read the increment file */ 169 struct dumpdates **ddatev; /* the arrayfied version */ 170 void initdumptimes(void); 171 void getdumptime(void); 172 void putdumptime(void); 173 #define ITITERATE(i, ddp) \ 174 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 175 176 void sig(int signo); 177 178 #ifndef _PATH_UTMP 179 #define _PATH_UTMP "/etc/utmp" 180 #endif 181 #ifndef _PATH_FSTAB 182 #define _PATH_FSTAB "/etc/fstab" 183 #endif 184