1 /*- 2 * Copyright (c) 1980, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)dump.h 8.2 (Berkeley) 04/28/95 8 */ 9 10 #define MAXINOPB (MAXBSIZE / sizeof(struct dinode)) 11 #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t)) 12 13 /* 14 * Dump maps used to describe what is to be dumped. 15 */ 16 int mapsize; /* size of the state maps */ 17 char *usedinomap; /* map of allocated inodes */ 18 char *dumpdirmap; /* map of directories to be dumped */ 19 char *dumpinomap; /* map of files to be dumped */ 20 /* 21 * Map manipulation macros. 22 */ 23 #define SETINO(ino, map) \ 24 map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) 25 #define CLRINO(ino, map) \ 26 map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY)) 27 #define TSTINO(ino, map) \ 28 (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) 29 30 /* 31 * All calculations done in 0.1" units! 32 */ 33 char *disk; /* name of the disk file */ 34 char *tape; /* name of the tape file */ 35 char *dumpdates; /* name of the file containing dump date information*/ 36 char *temp; /* name of the file for doing rewrite of dumpdates */ 37 char lastlevel; /* dump level of previous dump */ 38 char level; /* dump level of this dump */ 39 int uflag; /* update flag */ 40 int diskfd; /* disk file descriptor */ 41 int tapefd; /* tape file descriptor */ 42 int pipeout; /* true => output to standard output */ 43 ino_t curino; /* current inumber; used globally */ 44 int newtape; /* new tape flag */ 45 int density; /* density in 0.1" units */ 46 long tapesize; /* estimated tape size, blocks */ 47 long tsize; /* tape size in 0.1" units */ 48 long asize; /* number of 0.1" units written on current tape */ 49 int etapes; /* estimated number of tapes */ 50 int nonodump; /* if set, do not honor UF_NODUMP user flags */ 51 52 int notify; /* notify operator flag */ 53 int blockswritten; /* number of blocks written on current tape */ 54 int tapeno; /* current tape number */ 55 time_t tstart_writing; /* when started writing the first tape block */ 56 struct fs *sblock; /* the file system super block */ 57 char sblock_buf[MAXBSIZE]; 58 long dev_bsize; /* block size of underlying disk device */ 59 int dev_bshift; /* log2(dev_bsize) */ 60 int tp_bshift; /* log2(TP_BSIZE) */ 61 62 #ifndef __P 63 #include <sys/cdefs.h> 64 #endif 65 66 /* operator interface functions */ 67 void broadcast __P((char *message)); 68 void lastdump __P((int arg)); /* int should be char */ 69 void msg __P((const char *fmt, ...)); 70 void msgtail __P((const char *fmt, ...)); 71 int query __P((char *question)); 72 void quit __P((const char *fmt, ...)); 73 void set_operators __P((void)); 74 void timeest __P((void)); 75 time_t unctime __P((char *str)); 76 77 /* mapping rouintes */ 78 struct dinode; 79 long blockest __P((struct dinode *dp)); 80 int mapfiles __P((ino_t maxino, long *tapesize)); 81 int mapdirs __P((ino_t maxino, long *tapesize)); 82 83 /* file dumping routines */ 84 void blksout __P((daddr_t *blkp, int frags, ino_t ino)); 85 void bread __P((daddr_t blkno, char *buf, int size)); 86 void dumpino __P((struct dinode *dp, ino_t ino)); 87 void dumpmap __P((char *map, int type, ino_t ino)); 88 void writeheader __P((ino_t ino)); 89 90 /* tape writing routines */ 91 int alloctape __P((void)); 92 void close_rewind __P((void)); 93 void dumpblock __P((daddr_t blkno, int size)); 94 void startnewtape __P((int top)); 95 void trewind __P((void)); 96 void writerec __P((char *dp, int isspcl)); 97 98 __dead void Exit __P((int status)); 99 void dumpabort __P((int signo)); 100 void getfstab __P((void)); 101 102 char *rawname __P((char *cp)); 103 struct dinode *getino __P((ino_t inum)); 104 105 /* rdump routines */ 106 #ifdef RDUMP 107 void rmtclose __P((void)); 108 int rmthost __P((char *host)); 109 int rmtopen __P((char *tape, int mode)); 110 int rmtwrite __P((char *buf, int count)); 111 #endif /* RDUMP */ 112 113 void interrupt __P((int signo)); /* in case operator bangs on console */ 114 115 /* 116 * Exit status codes 117 */ 118 #define X_FINOK 0 /* normal exit */ 119 #define X_REWRITE 2 /* restart writing from the check point */ 120 #define X_ABORT 3 /* abort dump; don't attempt checkpointing */ 121 122 #define OPGRENT "operator" /* group entry to notify */ 123 #define DIALUP "ttyd" /* prefix for dialups */ 124 125 struct fstab *fstabsearch __P((char *key)); /* search fs_file and fs_spec */ 126 127 #ifndef NAME_MAX 128 #define NAME_MAX 255 129 #endif 130 131 /* 132 * The contents of the file _PATH_DUMPDATES is maintained both on 133 * a linked list, and then (eventually) arrayified. 134 */ 135 struct dumpdates { 136 char dd_name[NAME_MAX+3]; 137 char dd_level; 138 time_t dd_ddate; 139 }; 140 struct dumptime { 141 struct dumpdates dt_value; 142 struct dumptime *dt_next; 143 }; 144 struct dumptime *dthead; /* head of the list version */ 145 int nddates; /* number of records (might be zero) */ 146 int ddates_in; /* we have read the increment file */ 147 struct dumpdates **ddatev; /* the arrayfied version */ 148 void initdumptimes __P((void)); 149 void getdumptime __P((void)); 150 void putdumptime __P((void)); 151 #define ITITERATE(i, ddp) \ 152 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) 153 154 void sig __P((int signo)); 155 156 /* 157 * Compatibility with old systems. 158 */ 159 #ifdef COMPAT 160 #include <sys/file.h> 161 #define strchr(a,b) index(a,b) 162 #define strrchr(a,b) rindex(a,b) 163 extern char *strdup(), *ctime(); 164 extern int read(), write(); 165 extern int errno; 166 #endif 167 168 #ifndef _PATH_UTMP 169 #define _PATH_UTMP "/etc/utmp" 170 #endif 171 #ifndef _PATH_FSTAB 172 #define _PATH_FSTAB "/etc/fstab" 173 #endif 174 175 #ifdef sunos 176 extern char *calloc(); 177 extern char *malloc(); 178 extern long atol(); 179 extern char *strcpy(); 180 extern char *strncpy(); 181 extern char *strcat(); 182 extern time_t time(); 183 extern void endgrent(); 184 extern __dead void exit(); 185 extern off_t lseek(); 186 extern const char *strerror(); 187 #endif 188