sbin/dump/dump.h

   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. Neither the name of the University nor the names of its contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  *
  29  *      @(#)dump.h      8.2 (Berkeley) 4/28/95
  30  *
  31  * $FreeBSD: src/sbin/dump/dump.h,v 1.7.6.4 2003/01/25 18:54:59 dillon Exp $
  32  */
  33
  34 #include <sys/param.h>
  35
  36 #define MAXINOPB        (MAXBSIZE / sizeof(struct ufs1_dinode))
  37 #define MAXNINDIR       (MAXBSIZE / sizeof(daddr_t))
  38
  39 /*
  40  * Dump maps used to describe what is to be dumped.
  41  */
  42 int     mapsize;        /* size of the state maps */
  43 char    *usedinomap;    /* map of allocated inodes */
  44 char    *dumpdirmap;    /* map of directories to be dumped */
  45 char    *dumpinomap;    /* map of files to be dumped */
  46 /*
  47  * Map manipulation macros.
  48  */
  49 #define SETINO(ino, map) \
  50         map[(u_int)((ino) - 1) / NBBY] |=  1 << ((u_int)((ino) - 1) % NBBY)
  51 #define CLRINO(ino, map) \
  52         map[(u_int)((ino) - 1) / NBBY] &=  ~(1 << ((u_int)((ino) - 1) % NBBY))
  53 #define TSTINO(ino, map) \
  54         (map[(u_int)((ino) - 1) / NBBY] &  (1 << ((u_int)((ino) - 1) % NBBY)))
  55
  56 /*
  57  *      All calculations done in 0.1" units!
  58  */
  59 char    *disk;          /* name of the disk file */
  60 const char      *tape;          /* name of the tape file */
  61 extern const char *dumpdates;   /* name of the file containing dump date information*/
  62 extern const char *temp;                /* name of the file for doing rewrite of dumpdates */
  63 char    lastlevel;      /* dump level of previous dump */
  64 char    level;          /* dump level of this dump */
  65 int     uflag;          /* update flag */
  66 int     diskfd;         /* disk file descriptor */
  67 int     tapefd;         /* tape file descriptor */
  68 int     pipeout;        /* true => output to standard output */
  69 ufs1_ino_t curino;      /* current inumber; used globally */
  70 int     newtape;        /* new tape flag */
  71 long    tapesize;       /* estimated tape size, blocks */
  72 long    tsize;          /* tape size in 0.1" units */
  73 long    asize;          /* number of 0.1" units written on current tape */
  74 int     etapes;         /* estimated number of tapes */
  75 int     nonodump;       /* if set, do not honor UF_NODUMP user flags */
  76 int     unlimited;      /* if set, write to end of medium */
  77
  78 extern int      cachesize;      /* size of block cache */
  79 extern int      density;        /* density in 0.1" units */
  80 extern int      dokerberos;
  81 #ifdef NTREC_LONG
  82 extern long     ntrec;          /* used by sbin/restore */
  83 #else
  84 extern int      ntrec;          /* blocking factor on tape */
  85 #endif
  86 extern int      cartridge;
  87 extern const char *host;
  88 extern long     blocksperfile;  /* number of blocks per output file */
  89 extern int      notify;         /* notify operator flag */
  90 extern int      blockswritten;  /* number of blocks written on current tape */
  91 extern long     dev_bsize;      /* block size of underlying disk device */
  92
  93 time_t  tstart_writing; /* when started writing the first tape block */
  94 time_t  tend_writing;   /* after writing the last tape block */
  95 int     passno;         /* current dump pass number */
  96 struct  fs *sblock;     /* the file system super block */
  97 char    sblock_buf[MAXBSIZE];
  98 int     dev_bshift;     /* log2(dev_bsize) */
  99 int     tp_bshift;      /* log2(TP_BSIZE) */
 100
 101 /* operator interface functions */
 102 void    broadcast(const char *);
 103 void    infosch(int);
 104 void    lastdump(int);          /* int should be char */
 105 void    msg(const char *, ...) __printflike(1, 2);
 106 void    msgtail(const char *, ...) __printflike(1, 2);
 107 int     query(const char *);
 108 void    quit(const char *, ...) __printflike(1, 2);
 109 void    timeest(void);
 110 time_t  unctime(const char *);
 111
 112 /* mapping rouintes */
 113 struct  ufs1_dinode;
 114 long    blockest(struct ufs1_dinode *);
 115 int     mapfiles(ufs1_ino_t maxino, long *);
 116 int     mapdirs(ufs1_ino_t maxino, long *);
 117
 118 /* file dumping routines */
 119 void    blksout(daddr_t *, int, ufs1_ino_t);
 120 void    bread(daddr_t, char *, int);
 121 ssize_t cread(int, void *, size_t, off_t);
 122 void    dumpino(struct ufs1_dinode *, ufs1_ino_t);
 123 void    dumpmap(const char *, int, ufs1_ino_t);
 124 void    writeheader(ufs1_ino_t);
 125
 126 /* tape writing routines */
 127 int     alloctape(void);
 128 void    close_rewind(void);
 129 void    dumpblock(daddr_t, int);
 130 void    startnewtape(int);
 131 void    trewind(void);
 132 void    writerec(const void *, int);
 133
 134 void    Exit(int) __dead2;
 135 void    dumpabort(int);
 136 void    dump_getfstab(void);
 137
 138 char    *rawname(char *);
 139 struct  ufs1_dinode *getino(ufs1_ino_t);
 140
 141 /* rdump routines */
 142 #if defined(RDUMP) || defined(RRESTORE)
 143 void    rmtclose(void);
 144 int     rmthost(const char *);
 145 int     rmtopen(const char *, int);
 146 int     rmtwrite(const void *, int);
 147 #endif /* RDUMP || RRESTORE */
 148
 149 /* rrestore routines */
 150 #ifdef RRESTORE
 151 int     rmtread(char *, int);
 152 int     rmtseek(int, int);
 153 int     rmtioctl(int, int);
 154 #endif /* RRESTORE */
 155
 156 void    interrupt(int);         /* in case operator bangs on console */
 157
 158 /*
 159  *      Exit status codes
 160  */
 161 #define X_FINOK         0       /* normal exit */
 162 #define X_STARTUP       1       /* startup error */
 163 #define X_REWRITE       2       /* restart writing from the check point */
 164 #define X_ABORT         3       /* abort dump; don't attempt checkpointing */
 165
 166 #define OPGRENT "operator"              /* group entry to notify */
 167
 168 struct  fstab *fstabsearch(const char *);       /* search fs_file and fs_spec */
 169
 170 #ifndef NAME_MAX
 171 #define NAME_MAX 255
 172 #endif
 173
 174 /*
 175  *      The contents of the file _PATH_DUMPDATES is maintained both on
 176  *      a linked list, and then (eventually) arrayified.
 177  */
 178 struct dumpdates {
 179         char    dd_name[NAME_MAX+3];
 180         char    dd_level;
 181         time_t  dd_ddate;
 182 };
 183 extern int      nddates;                /* number of records (might be zero) */
 184 extern struct   dumpdates **ddatev;     /* the arrayfied version */
 185 void    initdumptimes(void);
 186 void    getdumptime(void);
 187 void    putdumptime(void);
 188 #define ITITERATE(i, ddp)       \
 189         if (ddatev != NULL)     \
 190                 for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i])
 191
 192 void    sig(int);
 193
 194 #ifndef _PATH_UTMP
 195 #define _PATH_UTMP      "/etc/utmp"
 196 #endif
 197 #ifndef _PATH_FSTAB
 198 #define _PATH_FSTAB     "/etc/fstab"
 199 #endif