/* $NetBSD: dump.h,v 1.23 2001/02/04 21:37:29 christos Exp $ */ /*- * Copyright (c) 1980, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)dump.h 8.2 (Berkeley) 4/28/95 */ #include #define MAXINOPB (MAXBSIZE / sizeof(struct dinode)) #define MAXNINDIR (MAXBSIZE / sizeof(daddr_t)) /* * Filestore-independent UFS data, so code can be more easily shared * between ffs, lfs, and maybe ext2fs and others as well. */ struct ufsi { int64_t ufs_dsize; /* filesystem size, in sectors */ int32_t ufs_bsize; /* block size */ int32_t ufs_bshift; /* log2(ufs_bsize) */ int32_t ufs_fsize; /* fragment size */ int32_t ufs_frag; /* block size / frag size */ int32_t ufs_fsatoda; /* disk address conversion constant */ int32_t ufs_nindir; /* disk addresses per indirect block */ int32_t ufs_inopb; /* inodes per block */ int32_t ufs_maxsymlinklen; /* max symlink length */ int32_t ufs_bmask; /* block mask */ int32_t ufs_fmask; /* frag mask */ int64_t ufs_qbmask; /* ~ufs_bmask */ int64_t ufs_qfmask; /* ~ufs_fmask */ }; #define fsatoda(u,a) ((a) << (u)->ufs_fsatoda) #define ufs_fragroundup(u,size) /* calculates roundup(size, ufs_fsize) */ \ (((size) + (u)->ufs_qfmask) & (u)->ufs_fmask) #define ufs_blkoff(u,loc) /* calculates (loc % u->ufs_bsize) */ \ ((loc) & (u)->ufs_qbmask) #define ufs_dblksize(u,d,b) \ ((((b) >= NDADDR || (d)->di_size >= ((b)+1) << (u)->ufs_bshift \ ? (u)->ufs_bsize \ : (ufs_fragroundup((u), ufs_blkoff(u, (d)->di_size)))))) struct ufsi *ufsib; /* * Dump maps used to describe what is to be dumped. */ int mapsize; /* size of the state maps */ char *usedinomap; /* map of allocated inodes */ char *dumpdirmap; /* map of directories to be dumped */ char *dumpinomap; /* map of files to be dumped */ /* * Map manipulation macros. */ #define SETINO(ino, map) \ map[(u_int)((ino) - 1) / NBBY] |= 1 << ((u_int)((ino) - 1) % NBBY) #define CLRINO(ino, map) \ map[(u_int)((ino) - 1) / NBBY] &= ~(1 << ((u_int)((ino) - 1) % NBBY)) #define TSTINO(ino, map) \ (map[(u_int)((ino) - 1) / NBBY] & (1 << ((u_int)((ino) - 1) % NBBY))) /* * All calculations done in 0.1" units! */ char *disk; /* name of the disk file */ char *tape; /* name of the tape file */ char *dumpdates; /* name of the file containing dump date information*/ char *temp; /* name of the file for doing rewrite of dumpdates */ char lastlevel; /* dump level of previous dump */ char level; /* dump level of this dump */ int uflag; /* update flag */ int diskfd; /* disk file descriptor */ int tapefd; /* tape file descriptor */ int pipeout; /* true => output to standard output */ ino_t curino; /* current inumber; used globally */ int newtape; /* new tape flag */ long tapesize; /* estimated tape size, blocks */ long tsize; /* tape size in 0.1" units */ long asize; /* number of 0.1" units written on current tape */ int etapes; /* estimated number of tapes */ int nonodump; /* if set, do not honor UF_NODUMP user flags */ extern int density; /* density in 0.1" units */ extern int notify; /* notify operator flag */ extern int blockswritten; /* number of blocks written on current tape */ extern int tapeno; /* current tape number */ time_t tstart_writing; /* when started writing the first tape block */ int xferrate; /* averaged transfer rate of all volumes */ char sblock_buf[MAXBSIZE]; /* buffer to hold the superblock */ extern long dev_bsize; /* block size of underlying disk device */ int dev_bshift; /* log2(dev_bsize) */ int tp_bshift; /* log2(TP_BSIZE) */ int needswap; /* file system in swapped byte order */ /* some inline functs to help the byte-swapping mess */ static __inline u_int16_t iswap16 __P((u_int16_t)); static __inline u_int32_t iswap32 __P((u_int32_t)); static __inline u_int64_t iswap64 __P((u_int64_t)); static __inline u_int16_t iswap16(x) u_int16_t x; { if (needswap) return bswap16(x); else return x; } static __inline u_int32_t iswap32(x) u_int32_t x; { if (needswap) return bswap32(x); else return x; } static __inline u_int64_t iswap64(x) u_int64_t x; { if (needswap) return bswap64(x); else return x; } #ifndef __P #include #endif /* filestore-specific hooks */ int fs_read_sblock __P((char *)); struct ufsi *fs_parametrize __P((void)); ino_t fs_maxino __P((void)); /* operator interface functions */ void broadcast __P((char *message)); void lastdump __P((int arg)); /* int should be char */ void msg __P((const char *fmt, ...)) __attribute__((__format__(__printf__,1,2))); void msgtail __P((const char *fmt, ...)) __attribute__((__format__(__printf__,1,2))); int query __P((char *question)); void quit __P((const char *fmt, ...)) __attribute__((__format__(__printf__,1,2))); void set_operators __P((void)); time_t do_stats __P((void)); void statussig __P((int)); void timeest __P((void)); time_t unctime __P((char *str)); /* mapping routines */ struct dinode; long blockest __P((struct dinode *dp)); void mapfileino __P((ino_t, long *, int *)); int mapfiles __P((ino_t maxino, long *tapesize, char *disk, char * const *dirv)); int mapdirs __P((ino_t maxino, long *tapesize)); /* file dumping routines */ void blksout __P((daddr_t *blkp, int frags, ino_t ino)); void dumpino __P((struct dinode *dp, ino_t ino)); void dumpmap __P((char *map, int type, ino_t ino)); void writeheader __P((ino_t ino)); /* data block caching */ void bread __P((daddr_t blkno, char *buf, int size)); void rawread __P((daddr_t, char *, int)); void initcache __P((int, int)); void printcachestats __P((void)); /* tape writing routines */ int alloctape __P((void)); void close_rewind __P((void)); void dumpblock __P((daddr_t blkno, int size)); void startnewtape __P((int top)); void trewind __P((void)); void writerec __P((char *dp, int isspcl)); void Exit __P((int status)); void dumpabort __P((int signo)); void getfstab __P((void)); char *rawname __P((char *cp)); struct dinode *getino __P((ino_t inum)); /* rdump routines */ #if defined(RDUMP) || defined(RRESTORE) void rmtclose __P((void)); int rmthost __P((char *host)); int rmtopen __P((char *tape, int mode)); int rmtwrite __P((char *buf, int count)); #endif /* RDUMP || RRESTORE */ void interrupt __P((int signo)); /* in case operator bangs on console */ /* * Exit status codes */ #define X_FINOK 0 /* normal exit */ #define X_REWRITE 2 /* restart writing from the check point */ #define X_ABORT 3 /* abort dump; don't attempt checkpointing */ #define OPGRENT "operator" /* group entry to notify */ #define DIALUP "ttyd" /* prefix for dialups */ struct fstab *fstabsearch __P((char *key)); /* search fs_file and fs_spec */ #ifndef NAME_MAX #define NAME_MAX 255 #endif /* * The contents of the file _PATH_DUMPDATES is maintained both on * a linked list, and then (eventually) arrayified. */ struct dumpdates { char dd_name[NAME_MAX+3]; char dd_level; time_t dd_ddate; }; struct dumptime { struct dumpdates dt_value; struct dumptime *dt_next; }; extern struct dumptime *dthead; /* head of the list version */ extern int nddates; /* number of records (might be zero) */ extern int ddates_in; /* we have read the increment file */ extern struct dumpdates **ddatev; /* the arrayfied version */ void initdumptimes __P((void)); void getdumptime __P((void)); void putdumptime __P((void)); #define ITITERATE(i, ddp) \ for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i]) void sig __P((int signo)); /* * Compatibility with old systems. */ #ifdef COMPAT #include #define strchr(a,b) index(a,b) #define strrchr(a,b) rindex(a,b) extern char *strdup(), *ctime(); extern int read(), write(); extern int errno; #endif #ifndef _PATH_UTMP #define _PATH_UTMP "/etc/utmp" #endif #ifndef _PATH_FSTAB #define _PATH_FSTAB "/etc/fstab" #endif #ifdef sunos extern char *calloc(); extern char *malloc(); extern long atol(); extern char *strcpy(); extern char *strncpy(); extern char *strcat(); extern time_t time(); extern void endgrent(); extern void exit(); extern off_t lseek(); extern const char *strerror(); #endif