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the restore program to restore all dumped extended attributes. If the restore is running as root, it will always be able to restore all extended attributes. If it is not running as root, it makes a best effort to set them. Using the -v command line flag or the `verbose' command in interactive mode will display all the extended attributes being set on files (and at the end on directories) that are being restored. It will note any extended attributes that could not be set. The extended attributes are placed on the dump image immediately following each file's data. Older versions of restore can work with the newer dump images. Old versions of restore will correctly restore the file data and then (silently) skip over the extended attribute data and proceed to the next file. This resolves PR 93085 which will be closed once the code has been MFC'ed. Note that this code will not compile until these header files have been updated: <protocols/dumprestore.h> and <sys/extattr.h>. PR: bin/93085 Comments from: Poul-Henning Kamp and Robert Watson MFC after: 3 weeks
178 lines
6.1 KiB
C
178 lines
6.1 KiB
C
/*-
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* Copyright (c) 1980, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)dump.h 8.2 (Berkeley) 4/28/95
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*
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* $FreeBSD$
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*/
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/*
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* Dump maps used to describe what is to be dumped.
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*/
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int mapsize; /* size of the state maps */
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char *usedinomap; /* map of allocated inodes */
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char *dumpdirmap; /* map of directories to be dumped */
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char *dumpinomap; /* map of files to be dumped */
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/*
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* Map manipulation macros.
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*/
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#define SETINO(ino, map) \
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map[(u_int)((ino) - 1) / CHAR_BIT] |= \
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1 << ((u_int)((ino) - 1) % CHAR_BIT)
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#define CLRINO(ino, map) \
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map[(u_int)((ino) - 1) / CHAR_BIT] &= \
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~(1 << ((u_int)((ino) - 1) % CHAR_BIT))
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#define TSTINO(ino, map) \
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(map[(u_int)((ino) - 1) / CHAR_BIT] & \
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(1 << ((u_int)((ino) - 1) % CHAR_BIT)))
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/*
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* All calculations done in 0.1" units!
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*/
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char *disk; /* name of the disk file */
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char *tape; /* name of the tape file */
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char *popenout; /* popen(3) per-"tape" command */
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char *dumpdates; /* name of the file containing dump date information*/
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char *temp; /* name of the file for doing rewrite of dumpdates */
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char lastlevel; /* dump level of previous dump */
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char level; /* dump level of this dump */
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int uflag; /* update flag */
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int diskfd; /* disk file descriptor */
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int tapefd; /* tape file descriptor */
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int pipeout; /* true => output to standard output */
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ino_t curino; /* current inumber; used globally */
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int newtape; /* new tape flag */
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int density; /* density in 0.1" units */
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long tapesize; /* estimated tape size, blocks */
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long tsize; /* tape size in 0.1" units */
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long asize; /* number of 0.1" units written on current tape */
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int etapes; /* estimated number of tapes */
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int nonodump; /* if set, do not honor UF_NODUMP user flags */
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int unlimited; /* if set, write to end of medium */
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int cachesize; /* size of block cache in bytes */
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int notify; /* notify operator flag */
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int blockswritten; /* number of blocks written on current tape */
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int tapeno; /* current tape number */
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time_t tstart_writing; /* when started writing the first tape block */
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time_t tend_writing; /* after writing the last tape block */
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int passno; /* current dump pass number */
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struct fs *sblock; /* the file system super block */
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char sblock_buf[MAXBSIZE];
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long dev_bsize; /* block size of underlying disk device */
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int dev_bshift; /* log2(dev_bsize) */
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int tp_bshift; /* log2(TP_BSIZE) */
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/* operator interface functions */
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void broadcast(const char *message);
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void infosch(int);
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void lastdump(int arg); /* int should be char */
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void msg(const char *fmt, ...) __printflike(1, 2);
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void msgtail(const char *fmt, ...) __printflike(1, 2);
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int query(const char *question);
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void quit(const char *fmt, ...) __printflike(1, 2);
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void timeest(void);
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time_t unctime(char *str);
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/* mapping rouintes */
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union dinode;
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int mapfiles(ino_t maxino, long *tapesize);
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int mapdirs(ino_t maxino, long *tapesize);
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/* file dumping routines */
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void bread(ufs2_daddr_t blkno, char *buf, int size);
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ssize_t cread(int fd, void *buf, size_t nbytes, off_t offset);
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void dumpino(union dinode *dp, ino_t ino);
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void dumpmap(char *map, int type, ino_t ino);
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void writeheader(ino_t ino);
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/* tape writing routines */
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int alloctape(void);
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void close_rewind(void);
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void dumpblock(ufs2_daddr_t blkno, int size);
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void startnewtape(int top);
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void trewind(void);
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void writerec(char *dp, int isspcl);
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void Exit(int status) __dead2;
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void dumpabort(int signo);
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void dump_getfstab(void);
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char *rawname(char *cp);
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union dinode *getino(ino_t inum, int *mode);
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/* rdump routines */
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#ifdef RDUMP
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void rmtclose(void);
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int rmthost(const char *host);
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int rmtopen(const char *tape, int mode);
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int rmtwrite(const char *buf, int count);
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#endif /* RDUMP */
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void interrupt(int signo); /* in case operator bangs on console */
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/*
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* Exit status codes
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*/
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#define X_FINOK 0 /* normal exit */
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#define X_STARTUP 1 /* startup error */
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#define X_REWRITE 2 /* restart writing from the check point */
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#define X_ABORT 3 /* abort dump; don't attempt checkpointing */
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#define OPGRENT "operator" /* group entry to notify */
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struct fstab *fstabsearch(const char *key); /* search fs_file and fs_spec */
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#ifndef NAME_MAX
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#define NAME_MAX 255
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#endif
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/*
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* The contents of the file _PATH_DUMPDATES is maintained both on
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* a linked list, and then (eventually) arrayified.
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*/
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struct dumpdates {
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char dd_name[NAME_MAX+3];
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char dd_level;
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time_t dd_ddate;
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};
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int nddates; /* number of records (might be zero) */
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struct dumpdates **ddatev; /* the arrayfied version */
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void initdumptimes(void);
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void getdumptime(void);
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void putdumptime(void);
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#define ITITERATE(i, ddp) \
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if (ddatev != NULL) \
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for (ddp = ddatev[i = 0]; i < nddates; ddp = ddatev[++i])
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void sig(int signo);
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#ifndef _PATH_FSTAB
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#define _PATH_FSTAB "/etc/fstab"
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#endif
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