dump.h revision 1.16
1 /* $NetBSD: dump.h,v 1.16 1999/03/23 14:22:59 bouyer Exp $ */ 2 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. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by the University of 18 * California, Berkeley and its contributors. 19 * 4. Neither the name of the University nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 * 35 * @(#)dump.h 8.2 (Berkeley) 4/28/95 36 */ 37 38 #include <machine/bswap.h> 39 40 #define MAXINOPB (MAXBSIZE / sizeof(struct dinode)) 41 #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t)) 42 43 /* 44 * Dump maps used to describe what is to be dumped. 45 */ 46 int mapsize; /* size of the state maps */ 47 char *usedinomap; /* map of allocated inodes */ 48 char *dumpdirmap; /* map of directories to be dumped */ 49 char *dumpinomap; /* map of files to be dumped */ 50 /* 51 * Map manipulation macros. 52 */ 53 #define SETINO(ino, map) \ 54 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) 55 #define CLRINO(ino, map) \ 56 map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY)) 57 #define TSTINO(ino, map) \ 58 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) 59 60 /* 61 * All calculations done in 0.1" units! 62 */ 63 char *disk; /* name of the disk file */ 64 char *tape; /* name of the tape file */ 65 char *dumpdates; /* name of the file containing dump date information*/ 66 char *temp; /* name of the file for doing rewrite of dumpdates */ 67 char lastlevel; /* dump level of previous dump */ 68 char level; /* dump level of this dump */ 69 int uflag; /* update flag */ 70 int diskfd; /* disk file descriptor */ 71 int tapefd; /* tape file descriptor */ 72 int pipeout; /* true => output to standard output */ 73 ino_t curino; /* current inumber; used globally */ 74 int newtape; /* new tape flag */ 75 int density; /* density in 0.1" units */ 76 long tapesize; /* estimated tape size, blocks */ 77 long tsize; /* tape size in 0.1" units */ 78 long asize; /* number of 0.1" units written on current tape */ 79 int etapes; /* estimated number of tapes */ 80 int nonodump; /* if set, do not honor UF_NODUMP user flags */ 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 int xferrate; /* averaged transfer rate of all volumes */ 87 struct fs *sblock; /* the file system 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 int needswap; /* file system in swapped byte order */ 93 /* some inline functs to help the byte-swapping mess */ 94 static __inline u_int16_t iswap16 __P((u_int16_t)); 95 static __inline u_int32_t iswap32 __P((u_int32_t)); 96 static __inline u_int64_t iswap64 __P((u_int64_t)); 97 98 static __inline u_int16_t iswap16(x) 99 u_int16_t x; 100 { 101 if (needswap) 102 return bswap16(x); 103 else return x; 104 } 105 106 static __inline u_int32_t iswap32(x) 107 u_int32_t x; 108 { 109 if (needswap) 110 return bswap32(x); 111 else return x; 112 } 113 114 static __inline u_int64_t iswap64(x) 115 u_int64_t x; 116 { 117 if (needswap) 118 return bswap64(x); 119 else return x; 120 } 121 122 #ifndef __P 123 #include <sys/cdefs.h> 124 #endif 125 126 /* operator interface functions */ 127 void broadcast __P((char *message)); 128 void lastdump __P((int arg)); /* int should be char */ 129 void msg __P((const char *fmt, ...)); 130 void msgtail __P((const char *fmt, ...)); 131 int query __P((char *question)); 132 void quit __P((const char *fmt, ...)); 133 void set_operators __P((void)); 134 time_t do_stats __P((void)); 135 void statussig __P((int)); 136 void timeest __P((void)); 137 time_t unctime __P((char *str)); 138 139 /* mapping routines */ 140 struct dinode; 141 long blockest __P((struct dinode *dp)); 142 void mapfileino __P((ino_t, long *, int *)); 143 int mapfiles __P((ino_t maxino, long *tapesize, char *disk, 144 char * const *dirv)); 145 int mapdirs __P((ino_t maxino, long *tapesize)); 146 147 /* file dumping routines */ 148 void blksout __P((daddr_t *blkp, int frags, ino_t ino)); 149 void dumpino __P((struct dinode *dp, ino_t ino)); 150 void dumpmap __P((char *map, int type, ino_t ino)); 151 void writeheader __P((ino_t ino)); 152 153 /* data block caching */ 154 void bread __P((daddr_t blkno, char *buf, int size)); 155 void rawread __P((daddr_t, char *, int)); 156 void initcache __P((int, int)); 157 void printcachestats __P((void)); 158 159 /* tape writing routines */ 160 int alloctape __P((void)); 161 void close_rewind __P((void)); 162 void dumpblock __P((daddr_t blkno, int size)); 163 void startnewtape __P((int top)); 164 void trewind __P((void)); 165 void writerec __P((char *dp, int isspcl)); 166 167 void Exit __P((int status)); 168 void dumpabort __P((int signo)); 169 void getfstab __P((void)); 170 171 char *rawname __P((char *cp)); 172 struct dinode *getino __P((ino_t inum)); 173 174 /* rdump routines */ 175 #ifdef RDUMP 176 void rmtclose __P((void)); 177 int rmthost __P((char *host)); 178 int rmtopen __P((char *tape, int mode)); 179 int rmtwrite __P((char *buf, int count)); 180 #endif /* RDUMP */ 181 182 void interrupt __P((int signo)); /* in case operator bangs on console */ 183 184 /* 185 * Exit status codes 186 */ 187 #define X_FINOK 0 /* normal exit */ 188 #define X_REWRITE 2 /* restart writing from the check point */ 189 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */ 190 191 #define OPGRENT "operator" /* group entry to notify */ 192 #define DIALUP "ttyd" /* prefix for dialups */ 193 194 struct fstab *fstabsearch __P((char *key)); /* search fs_file and fs_spec */ 195 196 #ifndef NAME_MAX 197 #define NAME_MAX 255 198 #endif 199 200 /* 201 * The contents of the file _PATH_DUMPDATES is maintained both on 202 * a linked list, and then (eventually) arrayified. 203 */ 204 struct dumpdates { 205 char dd_name[NAME_MAX+3]; 206 char dd_level; 207 time_t dd_ddate; 208 }; 209 struct dumptime { 210 struct dumpdates dt_value; 211 struct dumptime *dt_next; 212 }; 213 struct dumptime *dthead; /* head of the list version */ 214 int nddates; /* number of records (might be zero) */ 215 int ddates_in; /* we have read the increment file */ 216 struct dumpdates **ddatev; /* the arrayfied version */ 217 void initdumptimes __P((void)); 218 void getdumptime __P((void)); 219 void putdumptime __P((void)); 220 #define ITITERATE(i, ddp) \ 221 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 222 223 void sig __P((int signo)); 224 225 /* 226 * Compatibility with old systems. 227 */ 228 #ifdef COMPAT 229 #include <sys/file.h> 230 #define strchr(a,b) index(a,b) 231 #define strrchr(a,b) rindex(a,b) 232 extern char *strdup(), *ctime(); 233 extern int read(), write(); 234 extern int errno; 235 #endif 236 237 #ifndef _PATH_UTMP 238 #define _PATH_UTMP "/etc/utmp" 239 #endif 240 #ifndef _PATH_FSTAB 241 #define _PATH_FSTAB "/etc/fstab" 242 #endif 243 244 #ifdef sunos 245 extern char *calloc(); 246 extern char *malloc(); 247 extern long atol(); 248 extern char *strcpy(); 249 extern char *strncpy(); 250 extern char *strcat(); 251 extern time_t time(); 252 extern void endgrent(); 253 extern void exit(); 254 extern off_t lseek(); 255 extern const char *strerror(); 256 #endif 257
Indexes created Wed Sep 24 15:09:51 GMT 2025