dump.h revision 1.14
1 /* $NetBSD: dump.h,v 1.14 1998/03/18 16:54:56 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 #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 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 int xferrate; /* averaged transfer rate of all volumes */ 85 struct fs *sblock; /* the file system super block */ 86 char sblock_buf[MAXBSIZE]; 87 long dev_bsize; /* block size of underlying disk device */ 88 int dev_bshift; /* log2(dev_bsize) */ 89 int tp_bshift; /* log2(TP_BSIZE) */ 90 int needswap; /* file system in swapped byte order */ 91 /* some inline functs to help the byte-swapping mess */ 92 static __inline u_int16_t iswap16 __P((u_int16_t)); 93 static __inline u_int32_t iswap32 __P((u_int32_t)); 94 static __inline u_int64_t iswap64 __P((u_int64_t)); 95 96 static __inline u_int16_t iswap16(x) 97 u_int16_t x; 98 { 99 if (needswap) 100 return bswap16(x); 101 else return x; 102 } 103 104 static __inline u_int32_t iswap32(x) 105 u_int32_t x; 106 { 107 if (needswap) 108 return bswap32(x); 109 else return x; 110 } 111 112 static __inline u_int64_t iswap64(x) 113 u_int64_t x; 114 { 115 if (needswap) 116 return bswap64(x); 117 else return x; 118 } 119 120 #ifndef __P 121 #include <sys/cdefs.h> 122 #endif 123 124 /* operator interface functions */ 125 void broadcast __P((char *message)); 126 void lastdump __P((int arg)); /* int should be char */ 127 void msg __P((const char *fmt, ...)); 128 void msgtail __P((const char *fmt, ...)); 129 int query __P((char *question)); 130 void quit __P((const char *fmt, ...)); 131 void set_operators __P((void)); 132 time_t do_stats __P((void)); 133 void statussig __P((int)); 134 void timeest __P((void)); 135 time_t unctime __P((char *str)); 136 137 /* mapping routines */ 138 struct dinode; 139 long blockest __P((struct dinode *dp)); 140 void mapfileino __P((ino_t, long *, int *)); 141 int mapfiles __P((ino_t maxino, long *tapesize, char *disk, 142 char * const *dirv)); 143 int mapdirs __P((ino_t maxino, long *tapesize)); 144 145 /* file dumping routines */ 146 void blksout __P((daddr_t *blkp, int frags, ino_t ino)); 147 void bread __P((daddr_t blkno, char *buf, int size)); 148 void dumpino __P((struct dinode *dp, ino_t ino)); 149 void dumpmap __P((char *map, int type, ino_t ino)); 150 void writeheader __P((ino_t ino)); 151 152 /* tape writing routines */ 153 int alloctape __P((void)); 154 void close_rewind __P((void)); 155 void dumpblock __P((daddr_t blkno, int size)); 156 void startnewtape __P((int top)); 157 void trewind __P((void)); 158 void writerec __P((char *dp, int isspcl)); 159 160 void Exit __P((int status)); 161 void dumpabort __P((int signo)); 162 void getfstab __P((void)); 163 164 char *rawname __P((char *cp)); 165 struct dinode *getino __P((ino_t inum)); 166 167 /* rdump routines */ 168 #ifdef RDUMP 169 void rmtclose __P((void)); 170 int rmthost __P((char *host)); 171 int rmtopen __P((char *tape, int mode)); 172 int rmtwrite __P((char *buf, int count)); 173 #endif /* RDUMP */ 174 175 void interrupt __P((int signo)); /* in case operator bangs on console */ 176 177 /* 178 * Exit status codes 179 */ 180 #define X_FINOK 0 /* normal exit */ 181 #define X_REWRITE 2 /* restart writing from the check point */ 182 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */ 183 184 #define OPGRENT "operator" /* group entry to notify */ 185 #define DIALUP "ttyd" /* prefix for dialups */ 186 187 struct fstab *fstabsearch __P((char *key)); /* search fs_file and fs_spec */ 188 189 #ifndef NAME_MAX 190 #define NAME_MAX 255 191 #endif 192 193 /* 194 * The contents of the file _PATH_DUMPDATES is maintained both on 195 * a linked list, and then (eventually) arrayified. 196 */ 197 struct dumpdates { 198 char dd_name[NAME_MAX+3]; 199 char dd_level; 200 time_t dd_ddate; 201 }; 202 struct dumptime { 203 struct dumpdates dt_value; 204 struct dumptime *dt_next; 205 }; 206 struct dumptime *dthead; /* head of the list version */ 207 int nddates; /* number of records (might be zero) */ 208 int ddates_in; /* we have read the increment file */ 209 struct dumpdates **ddatev; /* the arrayfied version */ 210 void initdumptimes __P((void)); 211 void getdumptime __P((void)); 212 void putdumptime __P((void)); 213 #define ITITERATE(i, ddp) \ 214 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 215 216 void sig __P((int signo)); 217 218 /* 219 * Compatibility with old systems. 220 */ 221 #ifdef COMPAT 222 #include <sys/file.h> 223 #define strchr(a,b) index(a,b) 224 #define strrchr(a,b) rindex(a,b) 225 extern char *strdup(), *ctime(); 226 extern int read(), write(); 227 extern int errno; 228 #endif 229 230 #ifndef _PATH_UTMP 231 #define _PATH_UTMP "/etc/utmp" 232 #endif 233 #ifndef _PATH_FSTAB 234 #define _PATH_FSTAB "/etc/fstab" 235 #endif 236 237 #ifdef sunos 238 extern char *calloc(); 239 extern char *malloc(); 240 extern long atol(); 241 extern char *strcpy(); 242 extern char *strncpy(); 243 extern char *strcat(); 244 extern time_t time(); 245 extern void endgrent(); 246 extern void exit(); 247 extern off_t lseek(); 248 extern const char *strerror(); 249 #endif 250
Indexes created Tue Sep 23 23:09:58 GMT 2025