1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1980, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)dump.h 8.2 (Berkeley) 4/28/95 32 * 33 * $FreeBSD$ 34 */ 35 36 /* 37 * Dump maps used to describe what is to be dumped. 38 */ 39 int mapsize; /* size of the state maps */ 40 char *usedinomap; /* map of allocated inodes */ 41 char *dumpdirmap; /* map of directories to be dumped */ 42 char *dumpinomap; /* map of files to be dumped */ 43 /* 44 * Map manipulation macros. 45 */ 46 #define SETINO(ino, map) \ 47 map[(u_int)((ino) - 1) / CHAR_BIT] |= \ 48 1 << ((u_int)((ino) - 1) % CHAR_BIT) 49 #define CLRINO(ino, map) \ 50 map[(u_int)((ino) - 1) / CHAR_BIT] &= \ 51 ~(1 << ((u_int)((ino) - 1) % CHAR_BIT)) 52 #define TSTINO(ino, map) \ 53 (map[(u_int)((ino) - 1) / CHAR_BIT] & \ 54 (1 << ((u_int)((ino) - 1) % CHAR_BIT))) 55 56 /* 57 * All calculations done in 0.1" units! 58 */ 59 char *disk; /* name of the disk file */ 60 char *tape; /* name of the tape file */ 61 char *popenout; /* popen(3) per-"tape" command */ 62 char *dumpdates; /* name of the file containing dump date information*/ 63 char *temp; /* name of the file for doing rewrite of dumpdates */ 64 int lastlevel; /* dump level of previous dump */ 65 int level; /* dump level of this dump */ 66 int uflag; /* update flag */ 67 int diskfd; /* disk file descriptor */ 68 int tapefd; /* tape file descriptor */ 69 int pipeout; /* true => output to standard output */ 70 ino_t curino; /* current inumber; used globally */ 71 int newtape; /* new tape flag */ 72 int density; /* density in 0.1" units */ 73 long tapesize; /* estimated tape size, blocks */ 74 long tsize; /* tape size in 0.1" units */ 75 long asize; /* number of 0.1" units written on current tape */ 76 int etapes; /* estimated number of tapes */ 77 int nonodump; /* if set, do not honor UF_NODUMP user flags */ 78 int unlimited; /* if set, write to end of medium */ 79 int cachesize; /* size of block cache in bytes */ 80 int rsync_friendly; /* be friendly with rsync */ 81 82 int notify; /* notify operator flag */ 83 int blockswritten; /* number of blocks written on current tape */ 84 int tapeno; /* current tape number */ 85 time_t tstart_writing; /* when started writing the first tape block */ 86 time_t tend_writing; /* after writing the last tape block */ 87 int passno; /* current dump pass number */ 88 struct fs *sblock; /* the file system super block */ 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 union dinode; 106 int mapfiles(ino_t maxino, long *tapesize); 107 int mapdirs(ino_t maxino, long *tapesize); 108 109 /* file dumping routines */ 110 void blkread(ufs2_daddr_t blkno, char *buf, int size); 111 ssize_t cread(int fd, void *buf, size_t nbytes, off_t offset); 112 void dumpino(union dinode *dp, ino_t ino); 113 void dumpmap(char *map, int type, ino_t ino); 114 void writeheader(ino_t ino); 115 116 /* tape writing routines */ 117 int alloctape(void); 118 void close_rewind(void); 119 void dumpblock(ufs2_daddr_t blkno, int size); 120 void startnewtape(int top); 121 void trewind(void); 122 void writerec(char *dp, int isspcl); 123 124 void Exit(int status) __dead2; 125 void dumpabort(int signo) __dead2; 126 void dump_getfstab(void); 127 128 char *rawname(char *cp); 129 union dinode *getino(ino_t inum, int *mode); 130 131 /* rdump routines */ 132 #ifdef RDUMP 133 void rmtclose(void); 134 int rmthost(const char *host); 135 int rmtopen(const char *tape, int mode); 136 int rmtwrite(const char *buf, int count); 137 #endif /* RDUMP */ 138 139 void interrupt(int signo); /* in case operator bangs on console */ 140 141 /* 142 * Exit status codes 143 */ 144 #define X_FINOK 0 /* normal exit */ 145 #define X_STARTUP 1 /* startup error */ 146 #define X_REWRITE 2 /* restart writing from the check point */ 147 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */ 148 149 #define OPGRENT "operator" /* group entry to notify */ 150 151 struct fstab *fstabsearch(const char *key); /* search fs_file and fs_spec */ 152 153 #ifndef NAME_MAX 154 #define NAME_MAX 255 155 #endif 156 157 /* 158 * The contents of the file _PATH_DUMPDATES is maintained both on 159 * a linked list, and then (eventually) arrayified. 160 */ 161 struct dumpdates { 162 char dd_name[NAME_MAX+3]; 163 int dd_level; 164 time_t dd_ddate; 165 }; 166 int nddates; /* number of records (might be zero) */ 167 struct dumpdates **ddatev; /* the arrayfied version */ 168 void initdumptimes(void); 169 void getdumptime(void); 170 void putdumptime(void); 171 #define ITITERATE(i, ddp) \ 172 if (ddatev != NULL) \ 173 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 174 175 #define DUMPFMTLEN 53 /* max device pathname length */ 176 #define DUMPOUTFMT "%-*s %d %s" /* for printf */ 177 /* name, level, ctime(date) */ 178 #define DUMPINFMT "%s %d %[^\n]\n" /* inverse for scanf */ 179 180 void sig(int signo); 181 182 #ifndef _PATH_FSTAB 183 #define _PATH_FSTAB "/etc/fstab" 184 #endif 185