1 #========================================================================
3 # ChangeLog - change log for BackupPC.
6 # Revision history for BackupPC, detailing significant changes between
7 # versions, most recent first.
10 # Craig Barratt <cbarratt@users.sourceforge.net>
12 #========================================================================
14 # Version __VERSION__, released __RELEASEDATE__.
16 # See http://backuppc.sourceforge.net.
18 #========================================================================
20 #------------------------------------------------------------------------
21 # Version __VERSION__, __RELEASEDATE__
22 #------------------------------------------------------------------------
24 * A failed full dump is now saved as a partial (incomplete) dump,
25 provided it includes some files. This can be used for browsing,
26 restoring etc, and will also form the basis of resuming full
27 dumps. Only one partial is kept, and it is removed as soon
28 as a successful full (or a new partial) is done.
30 (Note: still needs some work to cleanup any partial files when the
31 dump is interrupted or fails).
33 * Added support for resuming a full dump for rsync. The partial
34 full is kept, and to resume an incremental is done against the
35 partial, and a full is done for the rest.
37 (Note: not tested! Also needs a new File::RsyncP that I haven't
40 * Added support for Rsync checksum caching. Rsync checksum are
41 appended to the compressed pool files. This means that block
42 and file checksums do not need to be recomputed on the server
45 * Major addition of Archive feature from Josh Marshall. Special
46 clients can be configured to be archive targets (eg: tape drives,
47 CD-R). Any subset of the backup clients can be selected and tar
48 archives are created, optionally compressed and split and written
49 to the output device. Logs are maintained and are browsable.
51 * Major changes from Ryan Kucera to add style sheets to the CGI
52 interface, allowing easy customization. Added new icons and
53 BackupPC logo. Numerous navigation improvements.
55 * Added directory history display to BackupPC_Admin, allowing the
56 user to quickly see which files changed between backups on a
59 * Added exponential expiry option for full dumps. This allows you
62 - how many fulls to keep at intervals of $Conf{FullPeriod}, followed by
63 - how many fulls to keep at intervals of 2 * $Conf{FullPeriod},
64 - how many fulls to keep at intervals of 4 * $Conf{FullPeriod},
65 - how many fulls to keep at intervals of 8 * $Conf{FullPeriod},
66 - how many fulls to keep at intervals of 16 * $Conf{FullPeriod},
68 and so on. This allows you, for example, to keep 4 weekly fulls,
69 followed by 6 fulls every 4 weeks (approx 1 month) and 2 fulls at
70 16 weeks, for roughly 1 year of history. This works by deleting
71 every other full as each expiry boundary is crossed. Suggested
74 * Added Italian language translation it.pm from Lorenzo Cappelletti.
76 * Major updates to language files for new features and tags changes.
77 Updated makeDist to do pedantic consistency checking of language
80 * Addition of administration options from Paul Lukins. Initial
81 page allows server to be started/stopped/reloaded.
83 * Split BackupPC_Admin into a set of modules, one for each major action.
84 Each action is now a seperate module in lib/BackupPC/CGI.
86 * Allow the blackout period begin/end to span midnight. Adapted
87 from patch submitted by David Smith.
89 * Allow multiple blackout periods, with new config variable
90 $Conf{BlackoutPeriods} that replaces the old variables
91 $Conf{BlackoutHourBegin}, $Conf{BlackoutHourEnd}, and
92 $Conf{BlackoutWeekDays}. Based on patch submitted by
95 * Disabled alarms after forks to avoid timeouts in children that
96 do not reset their alarm. Prompted by ideas from James Leu.
98 * Added options for block size, buffer size and share wild-card to
99 BackupPC_tarCreate. Also added negative backup number options
100 that are relative to the last (so -1 is the last), suggested by
101 William McKee and Carl Soderstrom.
103 * Add creation of per-PC directory in BackupPC/CGI/Restore.pm in
104 case it doesn't already exist.
106 * Added -q -x to all ssh commands in conf/config.pl. Suggested by
107 SI Reasoning and Niranjan Ghate.
109 * Changed restore code so that option #1 (direct restore) can be
110 disabled if the restore command is undefined. Disabling direct
111 restore is necessary if the share is read-only. Suggested by
114 * Changed regexp in lib/BackupPC/Smb.pm to allow numbers with both
115 a decimal point or comma for international versions of Samba.
116 Patch submitted by Frank Gard.
118 * Browsing and directory history now sort the files in a
119 case-insensitive manner.
121 * Changed exec() syntax to allow executing commands whose path
124 * Swapped the Server and Hosts sections on the Nav bar. Moved the
125 host search text box to the top of the hosts section. This was
126 done to move the variable-length part of the Nav bar (when all
127 hosts are displayed) to the bottom.
129 * Fixed a bug in tar restore related to how the common prefix path is
130 removed. Now ensure that the common path is at a directory boundary.
131 Reported by Patrick Neuner.
133 * Added --chuid ${USER} to init.d/src/gentoo-backuppc. Suggested by
134 SI Reasoning, Pascal Pochol, Michael Evanoff and others.
136 * Added Suse notes to init.d/README from Bruno Vernay.
138 * Added Apache 2 documentation fix from Michael Tuzi.
140 #------------------------------------------------------------------------
141 # Version 2.0.2, 6 Oct 2003
142 #------------------------------------------------------------------------
144 * Fixed stupid last-minute change in octal size conversion in
147 #-----------------------------------------------------------------------
148 # Version 2.0.1, 5 Oct 2003
149 #------------------------------------------------------------------------
151 * Fixed handling of >= 8GB files in BackupPC_tarExtract and >= 4GB
152 files in BackupPC_tarCreate.
154 * Removed smbclient size repair in BackupPC_tarExtract for files
155 between 2GB and 4GB. This means that BackupPC_tarExtract 2.0.1
156 doesn't behave the same as 2.0.0 for file sizes between 2GB and 4GB
157 extacted using smbclient 2.2.x. If you have problems backing up
158 files whose size is between 2GB and 4GB using smbclient 2.2.x
159 you should upgrade smbclient to 3.0, since it now generates
162 * Replace PingClientPath with PingPath in configure.pl.
164 * Removed -T (taint mode) on binaries installed in configure.pl.
166 * Added support for smbclient from samba version 3.0.0.
168 * Fixed $Conf{HardLinkMax} limit check in BackupPC::Lib; reported
171 * In BackupPC_Admin, default REMOTE_USER to $Conf{BackupPCUser}
172 if it is not defined. This allows the CGI interface to work
173 when AdminUsers = '*'. Reported by Quentin Arce.
175 * For SMB, code that detected files with a read-locked region (eg:
176 outlook .pst files), removed them and then tried to link with an
177 earlier version was broken. This code missed a step of mangling
178 the file names. This is now fixed. Reported by Pierre Bourgin.
180 * A backup of a share that has zero files is now considered
181 fatal. This is used to catch miscellaneous Xfer errors that
182 result in no files being backed up. A new config parameter
183 $Conf{BackupZeroFilesIsFatal} (defaults to 1) and can be set to
184 zero to turn off this check. Suggested by Guillaume Filion.
185 Additional change: this check only applies to a full dump.
187 * SMB: now detect NT_STATUS_ACCESS_DENIED on entire share or BackupFilesOnly
188 (also ERRDOS - ERRnoaccess (Access denied.) for older versions of
189 smbclient.) Suggested by Guillaume Filion.
191 * SMB: now detects "tree connect failed: NT_STATUS_BAD_NETWORK_NAME" and
192 the dump is considered failed.
194 * Rsync: Previously BackupFilesOnly = '/' did --include '/' --exclude '/*',
195 which just included the '/' directory and nothing below. Now it
196 does just --include '/', which should include everything.
199 * Add hostError to DumpPostUserCmd variable substitutions for both dump
202 * Verbose output in Lib.pm goes to STDERR, not STDOUT. This now
203 makes BackupPC_dump -v work better.
205 * Don't allow browsing with ".." in directory in case a user tries
206 to trick BackupPC_Admin into displaying directories outside where
209 * Required File::RsyncP version is now 0.44, since File::RsyncP 0.44
210 fixes large file (>2GB) bugs. Large file bugs reported by Steve
213 #------------------------------------------------------------------------
214 # Version 2.0.0, 14 Jun 2003
215 #------------------------------------------------------------------------
217 * Minor tweaks to disable utf8 on utf8-capable machines (eg: RH8+).
218 Added "no utf8" to all programs, and added binmode() to relevant
221 #------------------------------------------------------------------------
222 # Version 2.0.0beta3, 1 Jun 2003
223 #------------------------------------------------------------------------
225 * Several improvements to restore: cancel now reports the correct
226 message and cleans up correctly.
228 * Rsync with whitespace and wildcard excludes fixed by replacing
229 argList with argList+ in config.pl plus a fix to Lib.pm for
230 shell escaping array arguments.
232 * Fixed rsync restore for character and block special devices
233 (major and minor device numbers weren't correctly restored).
235 * Fixed typo in bin/BackupPC_restore (XferLOG -> RestoreLOG).
237 * (Re)-fixed "Bad command" in log file when restore via tar or zip
238 file download is done.
240 * Added untaint to exec in Lib.pm to avoid tainted errors.
242 * Applied additional tweak to hilight patch from Tim Demarest.
244 * $Conf{CgiAdminUsers} = '*' now allows privileged even with REMOTE_USER
247 * Don't display RsyncdPasswd when displaying config.pl files.
249 * Replace pipe with socketpair in bin/BackupPC_dump and bin/BackupPC_restore,
250 which increases typical buffering from 4K to 16K-64K. This improves the
253 * Add check on $ENV{LANG} setting do configure.pl: if LANG includes utf
254 then a warning is printed.
256 #------------------------------------------------------------------------
257 # Version 2.0.0beta2, 11 May 2003
258 #------------------------------------------------------------------------
260 * Added German translation, provided by Manfred Herrmann.
262 * Fixed large-file problem with rsync, reported by Manfred Herrmann.
264 * Fixed zip and tar file download from CGI under mod_perl. Reported
265 by Pierre Bourgin and Paul Lukins.
267 * Fixed directory browsing and top-level directory browsing in 2.0.0beta0.
268 Reported by several users.
270 * Added -v option to BackupPC_dump for verbose output (useful when
271 you run the command manually). Added messages for all exits.
273 * If nmblookup returns multiple IP addresses, NetBiosHostIPFind()
274 now returns the first IP address that matches the subnet mask.
275 Suggested by Tim Demarest.
277 * Fixed BackupPC::View so the top-level directory is handled correctly.
278 This allows the top-level share/directory to be restored via the
279 CGI interface. Reported by several users.
281 * Fixed RsyncFileIO failures on certain large files by replacing seek()
282 with sysseek(). Reported by Manfred Herrmann.
284 * Added configurable highlighting of PC status in the CGI summary
285 screen; submitted by Tim Demarest.
287 * Fixed command queue CGI display; submitted by Tim Demarest.
289 * BackupPC_trashClean now logs an error if it can't remove all the
290 trash and then goes back to sleep, rather than continually trying.
292 * Moved correct user (uid) check into BackupPC::Lib so that all
293 applications do a user check if $Cong{BackupPCUserVerify} is
294 set. The avoids the risk of manually running BackupPC_dump as
297 * Loss of blackout now applies to "host not found" as well as no ping.
298 Reported by Dale Renton.
300 * "Host not found" is now treated in a similar manner to "no ping".
302 * Added suse-linux init.d script from Leon Letto.
304 * Added Gentoo linux init.d script from Tim Demarest.
306 * Applied additional i18n strings from GFK and the translation team.
308 * Fixed option parsing so that getopts errors are reported and we exit.
310 * Changed reporting of Xfer PIDs so that rsync cancel works correctly.
312 #------------------------------------------------------------------------
313 # Version 2.0.0beta1, 30 Mar 2003
314 #------------------------------------------------------------------------
316 * Added Spanish translation es.pm from Javier Gonzalez.
318 * Fixed CGI browse navigation bug that causes BackupPC_Admin to wedge
319 when directories were selected in a certain order.
321 * Fixed BackupPC::PoolWrite so that it can recover when the initial
322 file size is wrong. This is needed since rsync could write a file
323 whose size is different from the initial size returned in the
324 file list when that file is updated while rsync is running.
326 * Added binmode(STDIN) to BackupPC_tarExtract, suggested by Pat LoPresti
327 to fix a problem a RedHat8 with perl 5.8.0. It's unclear why this
328 helps, but it should be benign. See:
329 http://sourceforge.net/mailarchive/forum.php?thread_id=1853018&forum_id=503
331 #------------------------------------------------------------------------
332 # Version 2.0.0beta0, 23 Feb 2003
333 #------------------------------------------------------------------------
335 * Support for rsync and rsyncd backup and restore. Changes to
336 BackupPC_dump, BackupPC_restore, and new modules BackupPC::Xfer::Rsync
337 and BackupPC::Xfer::RsyncFileIO.
339 * Added internationalization (i18n) code from Xavier Nicollet,
340 with additions from Guillaume Filion. Voila! BackupPC_Admin
341 now supports English and French, and adding more languages is
342 now easy. New config paramater $Conf{Language} sets the language.
344 * Added optional user-defined pre/post dump/restore commands, allowing
345 things like database shutdown/startup for dumps.
347 * Changed the way hosts are found.
349 * Added $Conf{ClientNameAlias}, which allows the name of the physical
350 client machine to be set. This allows several different backup
351 "hosts" to all refer to the same physical machine, which is
352 convenient if several different types of data need to be backed
353 up, or if different parameters are needed for different parts of
356 * Replaced $Conf{PingArgs} with $Conf{PingCmd}, added $Conf{DfCmd},
357 $Conf{NmbLookupCmd} allowing all these commands to be fully
358 configured. Also, all commands can also now be fragments of
361 * Moved all smbclient commands into the config.pl file so the specific
362 arguments can be customized. New config parameters are
363 $Conf{SmbClientFullCmd}, $Conf{SmbClientIncrCmd} and
364 $Conf{SmbClientRestoreCmd}.
366 * Added new BackupPC::View module that creates views of backups
367 (handling merging etc). Updated BackupPC_Admin, BackupPC_zipCreate
368 and BackupPC_tarCreate to use BackupPC::View. This removes lots
369 of merging and mangling code from the higher-level code.
371 * Added code from Toby Johnson that allows additional users to be
372 specified in the hosts file; these users can also view/start/stop
373 and restore backups for that host. Also added a new config
374 setting $Conf{CgiNavBarAdminAllHosts} that allows all hosts to
375 be listed in the left nav bar for admins.
377 * Added $Conf{HardLinkMax} (default 31999) which sets the limit on
378 the maximum number of hardlinks per file in the pool. If a file
379 ever gets to this number of links a new pool file is created to
380 handle additional links.
382 * Added $Conf{PerlModuleLoad}, which allows optional additional perl
383 modules to be loaded.
385 * Added $Conf{EMailUserDestDomain} and other EMail config settings to
386 allow language-specific default messages to be overridden.
388 * Added BPC_FTYPE_DELETED to lib/BackupPC/Attrib.pm, allowing deleted
389 files to be represented in the attrib file correctly.
391 * Added support for environment variable BPC_SMB_PASSWD, which is the
392 client's smb password. This overrides the old environment variable
395 * Added taint cleanup for perl5.8 to lib/BackupPC/Lib.pm.
397 * Changed $tar_unpack_header format in BackupPC_tarExtract to correctly
398 handle files with trailing spaces.
400 * Added catching of SIG_PIPE to BackupPC_dump, and changed catch_signal
401 to ignore multiple signals of the same type.
403 * Added reporting of the largest number of hardlinks in the pool to the
406 * Adding reporting of syntax errors in the per-PC config.pl file.
408 * Updated BackupPC_sendEmail to handle language-specific email messages.
410 * Allow client (host) names to contain spaces. Spaces in host names
411 need to be escaped via "\" in the hosts file. The user of spaces in
412 host names is discouraged, but they should work. One feature that
413 doesn't work with host names that contain spaces is the highlighting
414 of that name in the log file display in the CGI interface. There are
415 no plans to fix this.
417 * Renamed $Conf{SmbClientTimeout} to $Conf{ClientTimeout}.
419 * Fixed all open() calls to use 3 argument form to fix handling of file
420 names with trailing whitespace. Also fixed CGI interface so these
421 file names are displayed correctly.
423 * Fixed new 2.0.0 CGI navigation bug that causes the top-level directory
424 to have a URL "&share=//boot&dir=" instead of "&share=/boot&dir=/".
425 Reported by Pascal Schelcher. Fixed similar problem reported by
428 * Added "PerlTaintCheck On" to the mod_perl section in the docs,
429 suggested by Tim Demarest.
431 #------------------------------------------------------------------------
432 # Version 1.5.0, 2 Aug 2002
433 #------------------------------------------------------------------------
435 * Changed conf/config.pl so that $Conf{TarIncrArgs} uses the --newer
436 option instead of --newer-mtime. Also removed --atime-preserve from
437 $Conf{TarClientCmd}. This makes the default settings work better
440 * Fixed configure.pl so it correctly detects a running BackupPC <= v1.4.0
441 so it can correctly warn the user to stop it before upgrading. Reported
444 * Added missing ";" to entity escape in EscapeHTML in BackupPC_Admin.
445 Reported by Guillaume Filion.
447 * Added LDAP setup to documentation from David Holland.
449 * Tar.pm now adds a "." to file paths that start with "/", so that all
450 tar paths are relative. From Ludovic Drolez.
452 #------------------------------------------------------------------------
453 # Version 1.5.0beta0, 30 Jun 2002
454 #------------------------------------------------------------------------
456 * A full set of restore options is now supported, including direct
457 restore via smbclient or tar or downloading a zip or tar file.
459 * Major additions to CGI script to support better directory navigation,
460 restore features and mod_perl. Also, file downloads from the CGI
461 interface now correctly preserve the file name and provide the
462 correct Content-Type for the most common types of files. Improved
463 directory navigation was contributed by Ryan Kucera.
465 * New script BackupPC_zipCreate (contributed by Guillaume Filion) is the
466 zip analog of BackupPC_tarCreate. BackupPC_zipCreate can be used to
467 create a zip archive of any portion of a backup.
469 * Substantial additions to BackupPC_tarCreate to support restore,
470 including modifying path names, handling hardlinks, fixing
471 support of old backups without attributes (pre-v1.4.0). Plus
472 BackupPC_tarCreate is now an offical part of the release.
473 (Lack of support for hardlinks was reported by John Stanley.)
475 * BackupPC_tarExtract now supports hardlinks and fixed pooling of
478 * A unix domain socket is now used for communication between the CGI
479 interface and BackupPC. The original TCP socket is optional. Sockets
480 are correctly re-initialized if config.pl is updated with new socket
483 * For improved security messages over the unix or TCP socket are protected
484 via an MD5 digest based on a shared secret, a sequence number, a time
485 stamp and a unique per-connection number.
487 * Additions to configure.pl to support install of directory navigation
490 * Fixed case where $Conf{BackupFilesOnly} or $Conf{BackupFilesExclude}
491 were set to a single string or list (in v1.4.0 only the case of
492 hash worked correctly). Reported by Phillip Bertolus.
494 * Fixed case of $Conf{BackoutGoodCnt} == 0. This setting now makes the
495 client always subject to blackout, matching the comments in config.pl.
496 Also fixed handling of $Conf{BackoutGoodCnt} < 0 in the CGI script
497 reported by Pascal Schelcher.
499 * Fixed byte and file totals for tar backups, reported by several users.
501 * Fixed --newer-mtime date/timestamp format to make it ISO 8601 compliant,
502 suggested by Erminio Baranzini.
504 * Fixed handling of $Conf{BackupFilesOnly} in BackupPC::Xfer::Tar.pm, as
505 well as shell escaping of tar arguments.
507 * Fixed entity encoding of 8-bit characters in the CGI interface.
509 * Added optional CGI headers in $Conf{CgiHeaders} that by default
510 is set to a no-cache pragma. Suggested by Benno Zuure.
512 #------------------------------------------------------------------------
513 # Version 1.4.0, 16 Mar 2002
514 #------------------------------------------------------------------------
516 * BackupPC now supports tar (in addition to smb) for extracting host
517 data. This is the most convenient option for linux/unix hosts.
518 Tar can be configured to run over ssh, rsh or to backup a local
519 nfs mount from the host.
521 * Support for special files, including symbolic links, fifo, character
522 and block device files has been added, so that all native linux/unix
523 file types can be correctly backed up when using tar transport.
524 Special files are all stored as regular files and the type attributes
525 are used to remember the original file type.
527 * All unix file attributes are now saved (and pooled when possible).
528 This includes user and group ownership, permissions, and modification
529 time. Smbclient also does a reasonable job of emulating unix
530 permissions (such as mtime), and these attributes get saved too.
532 * The new default is to not fill incremental dumps. configure.pl
533 automatically sets $Conf{IncrFill} to 0. The default was 1
534 (incrementals were filled with hardlinks). Since the CGI
535 script does filling at browsing time, there is no need to
536 fill incremental dumps.
538 * Backup file names are now stored in "mangled" form. Each node of a
539 path is preceded by "f", and special characters (\n, \r, % and /) are
540 URI-encoded as "%xx", where xx is the ascii character's hex value. So
541 c:/craig/example.txt is now stored as fc/fcraig/fexample.txt. This
542 was done mainly so meta-data could be stored alongside the backup
543 files without name collisions. In particular, the attributes for the
544 files in a directory are stored in a file called "attrib", and
545 mangling avoids file name collisions (I discarded the idea of having
546 a duplicate directory tree for every backup just to store the
547 attributes). Other meta-data (eg: rsync checksums) could be stored in
548 file names preceded by, eg, "c". There are two other benefits to
549 mangling: the share name might contain "/" (eg: "/home/craig" for tar
550 transport), and I wanted that represented as a single level in the
551 storage tree. Secondly, as files are written to NewFileList for later
552 processing by BackupPC_link, embedded newlines in the file's path
553 will cause problems which are avoided by mangling.
555 The CGI script undoes the mangling, so it is invisibe to the user.
556 Of course, old (unmangled) backups are still supported by the CGI
559 * Various changes to the CGI interface, BackupPC_Admin:
561 + Added button that allows users to manually start a full dump in
562 addition to the existing incremental dump.
564 + Added display of file attributes when browsing backups.
566 + Added an optional holdoff time specified by the user when canceling
567 a backup. BackupPC will not attempt any new backups for at least the
568 specified time. This holdoff time can be changed whether or not a
571 + Added supports for file mangling, and correct merging of unfilled
572 backups from mangled or unmangled (and compressed or uncompressed)
573 fulls when browsing or restoring.
575 + Only displays a "Start Incr Backup" button if there are already some
578 + For DHCP hosts, when a user tries to manually start a backup, add
579 a check for the netbios name of both the host the request came
580 from (REMOTE_ADDR) and the last known DHCP address for that host
581 to see if either address matches the host. If not, an error
582 message is display. The previous behavior was that only requests
583 from the client itself succeeded, and requests from other machines
586 * Changed the version numbering to X.Y.Z, instead of X.0Y. This release
587 is 1.4.0. The first digit is for major new releases, the middle digit
588 is for significant feature releases and improvements, and the last
589 digit is for bug fixes. You should think of the old 1.00, 1.01, 1.02
590 and 1.03 as 1.0.0, ..., 1.3.0.
592 * BackupPC and the CGI script BackupPC_Admin now check that the effective
593 user id is correct to avoid accidentally launching BackupPC as the
594 wrong user or detecting CGI configuration problems. This behavior
595 can be turned off using the $Conf{BackupPCUserVerify} option.
597 * In numerous places changed "Smb" to "Xfer" (eg: log file names) to
598 support generic names for both smb and tar transport methods. The
599 CGI script checks for old names for backward compatibility.
601 * Major changed to Backup_dump to support new tar transport. All transport
602 specific code moved into BackupPC::Xfer::Smb and BackupPC::Xfer::Tar
605 * Added workaround for a bug in Samba's smbclient for files between 2GB
606 and 4GB. The file size in the tar header is incorrect. This allows
607 files up to 4GB to work with smbclient, rather than 2GB. To support
608 files larger than 2GB you must make sure perl is compiled with the
609 uselargefiles option (use "perl -V | egrep largefiles" to check) and
610 the pool directory must be on a file system that supports large files.
612 * Moved the pool writing code into a module BackupPC::PoolWrite. This
613 allows the clever file pool checking (digest, uncompressing, comparing
614 etc with minimum disk IO) to be used easily in multiple places (eg: it
615 is now used for writing attribute files so they can be pooled).
617 * Changed MD5 to Digest::MD5 to avoid use of the depreceated MD5 module.
619 * Shortened default $Conf{MyPath} so that perl's taint mode is more likely
620 to be happy. The old $Conf{MyPath} contained /usr/local/bin, which
621 on one user's machine was world writable and perl -T correctly
624 * Fixed ping command options in Lib.pm so that it works on OpenBSD.
625 Thanks to Kyle Amon for sending the fix. Decided to move the
626 ping options from Lib.pm into config.pl (as $Conf{PingArgs}) and
627 now configure.pl tries to come up with a sensible default based on
630 * Fixed argument checking in BackupPC_tarExtract to allow '$' in the
631 share name (eg: C$). Thanks to Jules Agee for this fix. Also
632 changed the default config.pl so that single quotes are used
633 everywhere so that people don't get tripped up putting '$' inside
634 double-quoted strings.
636 #------------------------------------------------------------------------
637 # Version 1.03, 9 Dec 2001
638 #------------------------------------------------------------------------
640 * BackupPC now has full support for compression. There are now two
641 pool areas, the original pool for uncompressed files, and cpool for
642 compressed files. The compression is done by Compress::Zlib.
643 Compression reduces the pool disk usage by around 40%, although your
644 mileage may vary. Compression is optional and can also be specified on
645 a per-PC basis (although this will cost more pool storage since many
646 backup files will have to be stored in both compressed and
649 * A new script, BackupPC_compressPool, can be run to compress the entire
650 pool. This is used once to migrate all the pool data from uncompressed
651 to compressed on existing installations. Read the documentation
652 (Installing BackupPC/Compressing an existing pool) before running
653 BackupPC_compressPool!
655 Alternatively, compression can simply be turned on and all new backups
656 will be compressed. Both old (uncompressed) and new (compressed)
657 backups can be browsed and viewed. Eventually, the old backups will
658 expire and all the pool data will be compressed. However, until the
659 old backups expire, this approach could require 60% or more additional
660 pool storage space to store both uncompressed and compressed versions
663 * Significant improvements to the cgi interface, BackupPC_Admin:
665 - much better layout navigation
666 - handles compressed backup files and compressed log files
667 - handles unfilled incremental dumps
668 - better backup directory browsing navigation
669 - reports compression statistics
670 - $Conf{CgiDateFormatMMDD} allows you to set date format (MM/DD or DD/MM)
671 - Additional customization with $Conf{CgiHeaderFontType},
672 $Conf{CgiHeaderFontSize}, $Conf{CgiNavBarBgColor}, and
673 $Conf{CgiHeaderBgColor}.
675 * Eliminated BackupPC_queueAll. BackupPC directly reads the hosts
676 file and queues the PCs itself. Like config.pl, BackupPC will
677 re-read the hosts file on each wakeup if its modification time
678 changes, or upon a SIGHUP. This also makes for better behavior
679 when adding a host: if you add hosts, simply send a SIGHUP to
680 BackupPC or wait for the next wakeup.
682 * BackupPC_dump now compresses the SmbLOG file if compression is enabled.
684 * BackupPC_dump keeps track of compressed file sizes so that compression
685 statistics can be reported by the cgi interface.
687 * Aging of old log files now handles compressed log files (.z extension).
689 * Added configuration option $Conf{IncrFill} to specify whether
690 incremental dumps should be filled in. Old behavior was that
691 filling was on. Now it's optional. See config.pl for more
694 * BackupPC_nightly now cleans and generates statistics for both
695 the uncompressed pool and compressed pool (cpool).
697 * Added new utility script BackupPC_zcat that can be used to
698 uncompresses BackupPC files.
700 * configure.pl offers various options related to compression,
701 depending upon whether this is a new install or upgrade,
702 and whether or not Compress::Zlib is installed.
704 * configure.pl now makes a backup copy of config.pl before
705 config.pl is updated.
707 * added three new fields to the backups file to handle optional
708 filling and compression stats.
710 * Added -e option to BackupPC_dump. BackupPC now invokes BackupPC_dump -e
711 on each dhcp host once each night to verify that very old backups are
712 expired. This ensures that very old backups are expired even if
713 the dhcp host has not been on the network for a long time.
715 * fixed bug in BackupPC::FileZIO.pm that required Compress::Zlib,
716 even if compression was off. Thanks to Steve Holmes for reporting
719 * fixed bug that caused a BackupPC queue to get blocked when a backup
720 cancel attempt was made during the BackupPC_link phase.
722 #------------------------------------------------------------------------
723 # Version 1.02, 28 Oct 2001.
724 #------------------------------------------------------------------------
726 * Added new script BackupPC_tarExtract to extract the smbclient tar
727 archive. This reduces disk writes by perhaps 90-95% and disk reads by
728 50%. Previously, tar was used to extract and write everything to disk.
729 Then BackupPC_dump would read enough of each file to compute the MD5
730 digest, and then compare the full file with candidate pool files. So
731 for each 1MB file that matches a single file in the pool, there would
732 be 1MB of disk writes and 2MB of disk reads (to compare two 1MB files).
734 BackupPC_tarExtract instead extracts the archive using a 1MB memory
735 buffer. This allows the MD5 digest to be computed without touching the
736 disk. Next, any potential pool file compares are done by comparing the
737 pool file against the incoming tar data in memory, which only requires
738 the pool file to be read. So for each 1MB file that matches a single
739 file in the pool, there are now no disk writes, and only 1MB of reads.
740 BackupPC_tarExtract handles arbitrary size files and repeated
741 potential pool matches. If the incoming file doesn't match the pool
742 then it is written to disk (once the pool is mature this happens maybe
745 * Substantial changes to BackupPC_dump:
747 + BackupPC_tarExtract is now used in place of tar.
749 + BackupPC_dump now reads the output from both smbclient and
750 BackupPC_tarExtract and merges them into SmbLOG.
752 + Named pipes are no longer used to connect smbclient to tar
753 (now BackupPC_tarExtract). Regular pipes are used instead.
754 This avoids the need to system mknod or mkfifo.
756 + Locked files on the client that can't be read by smbclient
757 previously were filled with 0x0 bytes by smbclient, meaning
758 tar extracted a useless file filled with 0x0 bytes. Now,
759 BackupPC_dump watches the output of smbclient and removes
760 any files that smbclient couldn't read. This avoids storing
761 useless files. It tries to replace such files with a hard link
762 to a previous dump. These actions appear in the log file.
764 * added new module lib/BackupPC/FileZIO.pm. This handles pool file
765 I/O and is used by BackupPC_tarExtract. BackupPC::FileIO supports
766 reading and writing compressed and regular files and provides all the
767 hooks for compression support in BackupPC (should be supported in next
768 version). BackupPC::FileIO also does efficient writing of files that
769 contain leading 0x0 bytes (by seeking past the 0x0 bytes). This is
770 helpful when smbclient reads a locked file, and it fills the tar
771 output with a file of the correct size but all 0x0. Such files will be
772 later removed by BackupPC_dump. But in the meantime, BackupPC::FileIO
773 writes such files efficiently (as sparse files), meaning just a few
774 blocks of disk space will be needed even if the file is large.
776 * alive/dead counting for blackout now works correctly for DHCP hosts.
778 * BackupPC resets activeJob on startup, to fix bug when BackupPC was
779 killed and restarted with backups running.
781 * added extra non blocking select() in BackupPC to make sure the socket
784 * BackupPC avoids queuing multiple BackupPC_queueAll's on the CmdQueue.
786 * Updated BackupPC_sendEmail to correctly parse the locked file
787 error from 2.2.1a smbclient, so that missing Outlook file emails
788 can be correctly sent.
790 * Changed HostInfoRead() in lib/BackupPC/Lib.pm to lowercase the
791 hostname read from the hosts file.
793 * BackupPC_Admin provides general summary when the host name is empty.
795 * configure.pl (and BackupPC) now requires perl 5.6.0 or later.
797 * configure.pl complains if BackupPC is already running, reminding you
798 to stop it before upgrading.
800 * updated documentation, and fixed auto-insertion of config.pl into
801 BackupPC.pod (previously the last config parameter was left out of
804 #------------------------------------------------------------------------
805 # Version 1.01, 30 Sep 2001
806 #------------------------------------------------------------------------
808 * Documentation cleanup in README, doc/BackupPC.pod, conf/config.pl.
810 * BackupPC_sendMail now reads the optional per-PC config file, allowing
811 email configuration parameters to be set on a per-PC basis.
813 * Removed the unused 4096-length MD5 digest code in lib/BackupPC/Lib.pm.
815 #------------------------------------------------------------------------
816 # Version 1.00, 21 Sep 2001
817 #------------------------------------------------------------------------
819 * Initial release of BackupPC on sourceforge.net.