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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
147 lines
5.9 KiB
C
147 lines
5.9 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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* (c) UNIX System Laboratories, Inc.
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* All or some portions of this file are derived from material licensed
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* to the University of California by American Telephone and Telegraph
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* Co. or Unix System Laboratories, Inc. and are reproduced herein with
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* the permission of UNIX System Laboratories, Inc.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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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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* @(#)dumprestore.h 8.2 (Berkeley) 1/21/94
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*
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* $FreeBSD$
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*/
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#ifndef _PROTOCOLS_DUMPRESTORE_H_
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#define _PROTOCOLS_DUMPRESTORE_H_
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/*
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* TP_BSIZE is the size of file blocks on the dump tapes.
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* Note that TP_BSIZE must be a multiple of DEV_BSIZE.
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*
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* NTREC is the number of TP_BSIZE blocks that are written
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* in each tape record. HIGHDENSITYTREC is the number of
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* TP_BSIZE blocks that are written in each tape record on
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* 6250 BPI or higher density tapes.
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*
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* TP_NINDIR is the number of indirect pointers in a TS_INODE
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* or TS_ADDR record. Note that it must be a power of two.
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*/
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#define TP_BSIZE 1024
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#define NTREC 10
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#define HIGHDENSITYTREC 32
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#define TP_NINDIR (TP_BSIZE/2)
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#define LBLSIZE 16
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#define NAMELEN 64
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#define OFS_MAGIC (int)60011
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#define NFS_MAGIC (int)60012
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#ifndef FS_UFS2_MAGIC
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#define FS_UFS2_MAGIC (int)0x19540119
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#endif
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#define CHECKSUM (int)84446
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union u_spcl {
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char dummy[TP_BSIZE];
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struct s_spcl {
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int32_t c_type; /* record type (see below) */
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int32_t c_old_date; /* date of this dump */
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int32_t c_old_ddate; /* date of previous dump */
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int32_t c_volume; /* dump volume number */
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int32_t c_old_tapea; /* logical block of this record */
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ino_t c_inumber; /* number of inode */
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int32_t c_magic; /* magic number (see above) */
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int32_t c_checksum; /* record checksum */
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/*
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* Start old dinode structure, expanded for binary
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* compatibility with UFS1.
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*/
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u_int16_t c_mode; /* file mode */
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int16_t c_spare1[3]; /* old nlink, ids */
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u_int64_t c_size; /* file byte count */
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int32_t c_old_atime; /* old last access time, seconds */
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int32_t c_atimensec; /* last access time, nanoseconds */
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int32_t c_old_mtime; /* old last modified time, secs */
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int32_t c_mtimensec; /* last modified time, nanosecs */
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int32_t c_spare2[2]; /* old ctime */
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int32_t c_rdev; /* for devices, device number */
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int32_t c_birthtimensec; /* creation time, nanosecs */
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int64_t c_birthtime; /* creation time, seconds */
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int64_t c_atime; /* last access time, seconds */
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int64_t c_mtime; /* last modified time, seconds */
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int32_t c_extsize; /* external attribute size */
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int32_t c_spare4[6]; /* old block pointers */
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u_int32_t c_file_flags; /* status flags (chflags) */
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int32_t c_spare5[2]; /* old blocks, generation number */
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u_int32_t c_uid; /* file owner */
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u_int32_t c_gid; /* file group */
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int32_t c_spare6[2]; /* previously unused spares */
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/*
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* End old dinode structure.
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*/
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int32_t c_count; /* number of valid c_addr entries */
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char c_addr[TP_NINDIR]; /* 1 => data; 0 => hole in inode */
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char c_label[LBLSIZE]; /* dump label */
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int32_t c_level; /* level of this dump */
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char c_filesys[NAMELEN]; /* name of dumpped file system */
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char c_dev[NAMELEN]; /* name of dumpped device */
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char c_host[NAMELEN]; /* name of dumpped host */
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int32_t c_flags; /* additional information */
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int32_t c_old_firstrec; /* first record on volume */
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int64_t c_date; /* date of this dump */
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int64_t c_ddate; /* date of previous dump */
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int64_t c_tapea; /* logical block of this record */
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int64_t c_firstrec; /* first record on volume */
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int32_t c_spare[24]; /* reserved for future uses */
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} s_spcl;
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} u_spcl;
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#define spcl u_spcl.s_spcl
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/*
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* special record types
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*/
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#define TS_TAPE 1 /* dump tape header */
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#define TS_INODE 2 /* beginning of file record */
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#define TS_ADDR 4 /* continuation of file record */
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#define TS_BITS 3 /* map of inodes on tape */
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#define TS_CLRI 6 /* map of inodes deleted since last dump */
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#define TS_END 5 /* end of volume marker */
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/*
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* flag values
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*/
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/* None at the moment */
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#define DUMPOUTFMT "%-32s %c %s" /* for printf */
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/* name, level, ctime(date) */
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#define DUMPINFMT "%32s %c %[^\n]\n" /* inverse for scanf */
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#endif /* !_DUMPRESTORE_H_ */
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