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 ** Add checksum caching info and file format to the docs.
26 * On the phase 2 retry pass with rsync, verify the cached checksums
27 if checksum caching is turned on. This will catch the case of
28 cached checksums being incorrectly appended to the compressed
29 pool file. Added new config parameter $Conf{RsyncCsumCacheVerifyProb}
30 so that cached checksums are verified with a selectable probability.
31 Also, increased File::RsyncP version number to 0.51.
33 * configure.pl now supports an optional batch mode. Command-line
34 options are used to specify all the information that configure.pl
35 needs. This is useful for buidling auto-install packages.
36 Also, configure.pl now includes pod documentation, so you can do
37 "perldoc configure.pl" to see all the command-line options.
38 Suggested, tested and tweaked by Stuart Herbert for possible
41 * At each wakeup, clients are now queued based on how old the most
42 recent backup is. Clients with errors are queued first, with
43 the oldest error times going first. Clients with good backups
44 are queued next, with the oldest backup going first. Previously
45 the clients were simply queued in alphabetic order. Suggested
48 * Added config parameter $Conf{PartialAgeMax} that controls whether
49 partials are saved at all, and if so, whether the partial will be
50 ignored at the next full backup if it is too old.
52 * BackupPC_tarExtract now allows empty archives without reporting
53 an error. Reported by Don Silvia.
55 * Removed Browse Backups link from Nav Bar in Archive Info display.
56 Reported by Ralph Paßgang.
58 * Fixed documentation display for regular users. Reported by Ralph Paßgang.
60 * Status and PC Summary now work for regular users and only show
61 that user's hosts. Server general status information only appears
62 for admins. Suggested by Ralph Paßgang.
64 * Moved the last three navigation-bar links (docs, FAQ and SF) to
65 a new config parameter $Conf{CgiNavBarLinks}. This allows
66 these links to be locally configured. Based on a patch
67 submitted by Ralph Paßgang.
69 * Allow the navigation bar search box to be disabled by
70 setting $Conf{CgiSearchBoxEnable} to 0. Based on a patch
71 submitted by Ralph Paßgang.
73 * Updates to de.pm from Ralph Paßgang.
75 * Made the BackupPC icon a link to the SF BackupPC project page.
77 #------------------------------------------------------------------------
78 # Version 2.1.0beta1, 4 Apr 2004
79 #------------------------------------------------------------------------
81 * The CSS definition has been removed from the config.pl file and
82 is now a separate file, BackupPC_stnd.css. A new config variable,
83 $Conf{CgiCSSFile}, gives the name of the CSS file to use.
84 Suggested by Ender Mathias.
86 * Fixed the filling of the host name select box for admins.
87 The default $Conf{CgiNavBarAdminAllHosts} is now 1.
88 Reported by Doug Lytle.
90 * Cleaned up warning message for restore using rsync when checksum
91 caching is on, but when file didn't have cached checksums.
93 * Fixed BackupPC_archiveHost to support par2 (par2cmdline).
94 Patch submitted by Jaco Bongers and adapted by Josh Marshall.
96 * Improved stat() usage in BackupPC_nightly, plus some other cleanup,
97 giving a significant performance improvement. Patch submitted by
100 * Allow several BackupPC_nightly processes to run in parallel based
101 on new $Conf{BackupPCNightlyJobs} setting. This speeds up the
102 traversal of the pool, reducing the overall run time for
105 * Allow BackupPC_nightly to split the pool traversal across several
106 nightly runs. This improves the running time per night, at the expense
107 of a slight increase in disk storage as unused pool files might not
108 be deleted for a couple of days. Controller by new config setting
109 $Conf{BackupPCNightlyPeriod}.
111 #------------------------------------------------------------------------
112 # Version 2.1.0beta0, 20 Mar 2004
113 #------------------------------------------------------------------------
115 * A failed full dump is now saved as a partial (incomplete) dump,
116 provided it includes some files. This can be used for browsing,
117 restoring etc, and will also form the basis of resuming full
118 dumps. Only one partial is kept, and it is removed as soon
119 as a successful full (or a new partial) is done.
121 * Added support for resuming a full dump for rsync. The partial
122 full is kept, and to resume an incremental is done against the
123 partial, and a full is done for the rest.
125 * Added support for Rsync checksum caching. Rsync checksum are
126 appended to the compressed pool files. This means that block
127 and file checksums do not need to be recomputed on the server
128 when using rsync. Requires a patch to rsync to support fixed
129 checksum seeds. This patch is included in the cygwin-rsyncd
130 release on http://backuppc.sourceforge.net.
132 * Major addition of Archive feature from Josh Marshall. Special
133 clients can be configured to be archive targets (eg: tape drives,
134 CD-R). Any subset of the backup clients can be selected and tar
135 archives are created, optionally compressed and split and written
136 to the output device. Logs are maintained and are browsable.
138 * Major changes from Ryan Kucera to add style sheets to the CGI
139 interface, allowing easy customization. Added new icons and
140 BackupPC logo. Numerous navigation improvements.
142 * Added directory history display to BackupPC_Admin, allowing the
143 user to quickly see which files changed between backups on a
146 * Added exponential expiry option for full dumps. This allows you
149 - how many fulls to keep at intervals of $Conf{FullPeriod}, followed by
150 - how many fulls to keep at intervals of 2 * $Conf{FullPeriod},
151 - how many fulls to keep at intervals of 4 * $Conf{FullPeriod},
152 - how many fulls to keep at intervals of 8 * $Conf{FullPeriod},
153 - how many fulls to keep at intervals of 16 * $Conf{FullPeriod},
155 and so on. This allows you, for example, to keep 4 weekly fulls,
156 followed by 6 fulls every 4 weeks (approx 1 month) and 2 fulls at
157 16 weeks, for roughly 1 year of history. This works by deleting
158 every other full as each expiry boundary is crossed. Suggested
161 * Added Italian language translation it.pm from Lorenzo Cappelletti.
163 * Major updates to language files for new features and tags changes.
164 Updated makeDist to do pedantic consistency checking of language
167 * Addition of administration options from Paul Lukins. Initial
168 page allows server to be started/stopped/reloaded. This still
169 needs some i18n work. Currently the server start/stop is
172 * Split BackupPC_Admin into a set of modules, one for each major action.
173 Each action is now a seperate module in lib/BackupPC/CGI.
175 * Allow the blackout period begin/end to span midnight. Adapted
176 from patch submitted by David Smith.
178 * Allow multiple blackout periods, with new config variable
179 $Conf{BlackoutPeriods} that replaces the old variables
180 $Conf{BlackoutHourBegin}, $Conf{BlackoutHourEnd}, and
181 $Conf{BlackoutWeekDays}. Based on patch submitted by
184 * Disabled alarms after forks to avoid timeouts in children that
185 do not reset their alarm. Prompted by ideas from James Leu.
187 * Added options for block size, buffer size and share wild-card to
188 BackupPC_tarCreate. Also added negative backup number options
189 that are relative to the last (so -1 is the last), suggested by
190 William McKee and Carl Soderstrom.
192 * Add creation of per-PC directory in BackupPC/CGI/Restore.pm in
193 case it doesn't already exist.
195 * Added -q -x to all ssh commands in conf/config.pl. Suggested by
196 SI Reasoning and Niranjan Ghate.
198 * Changed restore code so that option #1 (direct restore) can be
199 disabled if the restore command is undefined. Disabling direct
200 restore is necessary if the share is read-only. Suggested by
203 * Changed regexp in lib/BackupPC/Smb.pm to allow numbers with both
204 a decimal point or comma for international versions of Samba.
205 Patch submitted by Frank Gard.
207 * Browsing and directory history now sort the files in a
208 case-insensitive manner.
210 * Changed exec() syntax to allow executing commands whose path
213 * Swapped the Server and Hosts sections on the Nav bar. Moved the
214 host search text box to the top of the hosts section. This was
215 done to move the variable-length part of the Nav bar (when all
216 hosts are displayed) to the bottom.
218 * Fixed a bug in tar restore related to how the common prefix path is
219 removed. Now ensure that the common path is at a directory boundary.
220 Reported by Patrick Neuner.
222 * Added --chuid ${USER} to init.d/src/gentoo-backuppc. Suggested by
223 SI Reasoning, Pascal Pochol, Michael Evanoff and others.
225 * Added Suse notes to init.d/README from Bruno Vernay.
227 * Added Apache 2 documentation fix from Michael Tuzi.
229 #------------------------------------------------------------------------
230 # Version 2.0.2, 6 Oct 2003
231 #------------------------------------------------------------------------
233 * Fixed stupid last-minute change in octal size conversion in
236 #-----------------------------------------------------------------------
237 # Version 2.0.1, 5 Oct 2003
238 #------------------------------------------------------------------------
240 * Fixed handling of >= 8GB files in BackupPC_tarExtract and >= 4GB
241 files in BackupPC_tarCreate.
243 * Removed smbclient size repair in BackupPC_tarExtract for files
244 between 2GB and 4GB. This means that BackupPC_tarExtract 2.0.1
245 doesn't behave the same as 2.0.0 for file sizes between 2GB and 4GB
246 extacted using smbclient 2.2.x. If you have problems backing up
247 files whose size is between 2GB and 4GB using smbclient 2.2.x
248 you should upgrade smbclient to 3.0, since it now generates
251 * Replace PingClientPath with PingPath in configure.pl.
253 * Removed -T (taint mode) on binaries installed in configure.pl.
255 * Added support for smbclient from samba version 3.0.0.
257 * Fixed $Conf{HardLinkMax} limit check in BackupPC::Lib; reported
260 * In BackupPC_Admin, default REMOTE_USER to $Conf{BackupPCUser}
261 if it is not defined. This allows the CGI interface to work
262 when AdminUsers = '*'. Reported by Quentin Arce.
264 * For SMB, code that detected files with a read-locked region (eg:
265 outlook .pst files), removed them and then tried to link with an
266 earlier version was broken. This code missed a step of mangling
267 the file names. This is now fixed. Reported by Pierre Bourgin.
269 * A backup of a share that has zero files is now considered
270 fatal. This is used to catch miscellaneous Xfer errors that
271 result in no files being backed up. A new config parameter
272 $Conf{BackupZeroFilesIsFatal} (defaults to 1) and can be set to
273 zero to turn off this check. Suggested by Guillaume Filion.
274 Additional change: this check only applies to a full dump.
276 * SMB: now detect NT_STATUS_ACCESS_DENIED on entire share or BackupFilesOnly
277 (also ERRDOS - ERRnoaccess (Access denied.) for older versions of
278 smbclient.) Suggested by Guillaume Filion.
280 * SMB: now detects "tree connect failed: NT_STATUS_BAD_NETWORK_NAME" and
281 the dump is considered failed.
283 * Rsync: Previously BackupFilesOnly = '/' did --include '/' --exclude '/*',
284 which just included the '/' directory and nothing below. Now it
285 does just --include '/', which should include everything.
288 * Add hostError to DumpPostUserCmd variable substitutions for both dump
291 * Verbose output in Lib.pm goes to STDERR, not STDOUT. This now
292 makes BackupPC_dump -v work better.
294 * Don't allow browsing with ".." in directory in case a user tries
295 to trick BackupPC_Admin into displaying directories outside where
298 * Required File::RsyncP version is now 0.44, since File::RsyncP 0.44
299 fixes large file (>2GB) bugs. Large file bugs reported by Steve
302 #------------------------------------------------------------------------
303 # Version 2.0.0, 14 Jun 2003
304 #------------------------------------------------------------------------
306 * Minor tweaks to disable utf8 on utf8-capable machines (eg: RH8+).
307 Added "no utf8" to all programs, and added binmode() to relevant
310 #------------------------------------------------------------------------
311 # Version 2.0.0beta3, 1 Jun 2003
312 #------------------------------------------------------------------------
314 * Several improvements to restore: cancel now reports the correct
315 message and cleans up correctly.
317 * Rsync with whitespace and wildcard excludes fixed by replacing
318 argList with argList+ in config.pl plus a fix to Lib.pm for
319 shell escaping array arguments.
321 * Fixed rsync restore for character and block special devices
322 (major and minor device numbers weren't correctly restored).
324 * Fixed typo in bin/BackupPC_restore (XferLOG -> RestoreLOG).
326 * (Re)-fixed "Bad command" in log file when restore via tar or zip
327 file download is done.
329 * Added untaint to exec in Lib.pm to avoid tainted errors.
331 * Applied additional tweak to hilight patch from Tim Demarest.
333 * $Conf{CgiAdminUsers} = '*' now allows privileged even with REMOTE_USER
336 * Don't display RsyncdPasswd when displaying config.pl files.
338 * Replace pipe with socketpair in bin/BackupPC_dump and bin/BackupPC_restore,
339 which increases typical buffering from 4K to 16K-64K. This improves the
342 * Add check on $ENV{LANG} setting do configure.pl: if LANG includes utf
343 then a warning is printed.
345 #------------------------------------------------------------------------
346 # Version 2.0.0beta2, 11 May 2003
347 #------------------------------------------------------------------------
349 * Added German translation, provided by Manfred Herrmann.
351 * Fixed large-file problem with rsync, reported by Manfred Herrmann.
353 * Fixed zip and tar file download from CGI under mod_perl. Reported
354 by Pierre Bourgin and Paul Lukins.
356 * Fixed directory browsing and top-level directory browsing in 2.0.0beta0.
357 Reported by several users.
359 * Added -v option to BackupPC_dump for verbose output (useful when
360 you run the command manually). Added messages for all exits.
362 * If nmblookup returns multiple IP addresses, NetBiosHostIPFind()
363 now returns the first IP address that matches the subnet mask.
364 Suggested by Tim Demarest.
366 * Fixed BackupPC::View so the top-level directory is handled correctly.
367 This allows the top-level share/directory to be restored via the
368 CGI interface. Reported by several users.
370 * Fixed RsyncFileIO failures on certain large files by replacing seek()
371 with sysseek(). Reported by Manfred Herrmann.
373 * Added configurable highlighting of PC status in the CGI summary
374 screen; submitted by Tim Demarest.
376 * Fixed command queue CGI display; submitted by Tim Demarest.
378 * BackupPC_trashClean now logs an error if it can't remove all the
379 trash and then goes back to sleep, rather than continually trying.
381 * Moved correct user (uid) check into BackupPC::Lib so that all
382 applications do a user check if $Cong{BackupPCUserVerify} is
383 set. The avoids the risk of manually running BackupPC_dump as
386 * Loss of blackout now applies to "host not found" as well as no ping.
387 Reported by Dale Renton.
389 * "Host not found" is now treated in a similar manner to "no ping".
391 * Added suse-linux init.d script from Leon Letto.
393 * Added Gentoo linux init.d script from Tim Demarest.
395 * Applied additional i18n strings from GFK and the translation team.
397 * Fixed option parsing so that getopts errors are reported and we exit.
399 * Changed reporting of Xfer PIDs so that rsync cancel works correctly.
401 #------------------------------------------------------------------------
402 # Version 2.0.0beta1, 30 Mar 2003
403 #------------------------------------------------------------------------
405 * Added Spanish translation es.pm from Javier Gonzalez.
407 * Fixed CGI browse navigation bug that causes BackupPC_Admin to wedge
408 when directories were selected in a certain order.
410 * Fixed BackupPC::PoolWrite so that it can recover when the initial
411 file size is wrong. This is needed since rsync could write a file
412 whose size is different from the initial size returned in the
413 file list when that file is updated while rsync is running.
415 * Added binmode(STDIN) to BackupPC_tarExtract, suggested by Pat LoPresti
416 to fix a problem a RedHat8 with perl 5.8.0. It's unclear why this
417 helps, but it should be benign. See:
418 http://sourceforge.net/mailarchive/forum.php?thread_id=1853018&forum_id=503
420 #------------------------------------------------------------------------
421 # Version 2.0.0beta0, 23 Feb 2003
422 #------------------------------------------------------------------------
424 * Support for rsync and rsyncd backup and restore. Changes to
425 BackupPC_dump, BackupPC_restore, and new modules BackupPC::Xfer::Rsync
426 and BackupPC::Xfer::RsyncFileIO.
428 * Added internationalization (i18n) code from Xavier Nicollet,
429 with additions from Guillaume Filion. Voila! BackupPC_Admin
430 now supports English and French, and adding more languages is
431 now easy. New config paramater $Conf{Language} sets the language.
433 * Added optional user-defined pre/post dump/restore commands, allowing
434 things like database shutdown/startup for dumps.
436 * Changed the way hosts are found.
438 * Added $Conf{ClientNameAlias}, which allows the name of the physical
439 client machine to be set. This allows several different backup
440 "hosts" to all refer to the same physical machine, which is
441 convenient if several different types of data need to be backed
442 up, or if different parameters are needed for different parts of
445 * Replaced $Conf{PingArgs} with $Conf{PingCmd}, added $Conf{DfCmd},
446 $Conf{NmbLookupCmd} allowing all these commands to be fully
447 configured. Also, all commands can also now be fragments of
450 * Moved all smbclient commands into the config.pl file so the specific
451 arguments can be customized. New config parameters are
452 $Conf{SmbClientFullCmd}, $Conf{SmbClientIncrCmd} and
453 $Conf{SmbClientRestoreCmd}.
455 * Added new BackupPC::View module that creates views of backups
456 (handling merging etc). Updated BackupPC_Admin, BackupPC_zipCreate
457 and BackupPC_tarCreate to use BackupPC::View. This removes lots
458 of merging and mangling code from the higher-level code.
460 * Added code from Toby Johnson that allows additional users to be
461 specified in the hosts file; these users can also view/start/stop
462 and restore backups for that host. Also added a new config
463 setting $Conf{CgiNavBarAdminAllHosts} that allows all hosts to
464 be listed in the left nav bar for admins.
466 * Added $Conf{HardLinkMax} (default 31999) which sets the limit on
467 the maximum number of hardlinks per file in the pool. If a file
468 ever gets to this number of links a new pool file is created to
469 handle additional links.
471 * Added $Conf{PerlModuleLoad}, which allows optional additional perl
472 modules to be loaded.
474 * Added $Conf{EMailUserDestDomain} and other EMail config settings to
475 allow language-specific default messages to be overridden.
477 * Added BPC_FTYPE_DELETED to lib/BackupPC/Attrib.pm, allowing deleted
478 files to be represented in the attrib file correctly.
480 * Added support for environment variable BPC_SMB_PASSWD, which is the
481 client's smb password. This overrides the old environment variable
484 * Added taint cleanup for perl5.8 to lib/BackupPC/Lib.pm.
486 * Changed $tar_unpack_header format in BackupPC_tarExtract to correctly
487 handle files with trailing spaces.
489 * Added catching of SIG_PIPE to BackupPC_dump, and changed catch_signal
490 to ignore multiple signals of the same type.
492 * Added reporting of the largest number of hardlinks in the pool to the
495 * Adding reporting of syntax errors in the per-PC config.pl file.
497 * Updated BackupPC_sendEmail to handle language-specific email messages.
499 * Allow client (host) names to contain spaces. Spaces in host names
500 need to be escaped via "\" in the hosts file. The user of spaces in
501 host names is discouraged, but they should work. One feature that
502 doesn't work with host names that contain spaces is the highlighting
503 of that name in the log file display in the CGI interface. There are
504 no plans to fix this.
506 * Renamed $Conf{SmbClientTimeout} to $Conf{ClientTimeout}.
508 * Fixed all open() calls to use 3 argument form to fix handling of file
509 names with trailing whitespace. Also fixed CGI interface so these
510 file names are displayed correctly.
512 * Fixed new 2.0.0 CGI navigation bug that causes the top-level directory
513 to have a URL "&share=//boot&dir=" instead of "&share=/boot&dir=/".
514 Reported by Pascal Schelcher. Fixed similar problem reported by
517 * Added "PerlTaintCheck On" to the mod_perl section in the docs,
518 suggested by Tim Demarest.
520 #------------------------------------------------------------------------
521 # Version 1.5.0, 2 Aug 2002
522 #------------------------------------------------------------------------
524 * Changed conf/config.pl so that $Conf{TarIncrArgs} uses the --newer
525 option instead of --newer-mtime. Also removed --atime-preserve from
526 $Conf{TarClientCmd}. This makes the default settings work better
529 * Fixed configure.pl so it correctly detects a running BackupPC <= v1.4.0
530 so it can correctly warn the user to stop it before upgrading. Reported
533 * Added missing ";" to entity escape in EscapeHTML in BackupPC_Admin.
534 Reported by Guillaume Filion.
536 * Added LDAP setup to documentation from David Holland.
538 * Tar.pm now adds a "." to file paths that start with "/", so that all
539 tar paths are relative. From Ludovic Drolez.
541 #------------------------------------------------------------------------
542 # Version 1.5.0beta0, 30 Jun 2002
543 #------------------------------------------------------------------------
545 * A full set of restore options is now supported, including direct
546 restore via smbclient or tar or downloading a zip or tar file.
548 * Major additions to CGI script to support better directory navigation,
549 restore features and mod_perl. Also, file downloads from the CGI
550 interface now correctly preserve the file name and provide the
551 correct Content-Type for the most common types of files. Improved
552 directory navigation was contributed by Ryan Kucera.
554 * New script BackupPC_zipCreate (contributed by Guillaume Filion) is the
555 zip analog of BackupPC_tarCreate. BackupPC_zipCreate can be used to
556 create a zip archive of any portion of a backup.
558 * Substantial additions to BackupPC_tarCreate to support restore,
559 including modifying path names, handling hardlinks, fixing
560 support of old backups without attributes (pre-v1.4.0). Plus
561 BackupPC_tarCreate is now an offical part of the release.
562 (Lack of support for hardlinks was reported by John Stanley.)
564 * BackupPC_tarExtract now supports hardlinks and fixed pooling of
567 * A unix domain socket is now used for communication between the CGI
568 interface and BackupPC. The original TCP socket is optional. Sockets
569 are correctly re-initialized if config.pl is updated with new socket
572 * For improved security messages over the unix or TCP socket are protected
573 via an MD5 digest based on a shared secret, a sequence number, a time
574 stamp and a unique per-connection number.
576 * Additions to configure.pl to support install of directory navigation
579 * Fixed case where $Conf{BackupFilesOnly} or $Conf{BackupFilesExclude}
580 were set to a single string or list (in v1.4.0 only the case of
581 hash worked correctly). Reported by Phillip Bertolus.
583 * Fixed case of $Conf{BackoutGoodCnt} == 0. This setting now makes the
584 client always subject to blackout, matching the comments in config.pl.
585 Also fixed handling of $Conf{BackoutGoodCnt} < 0 in the CGI script
586 reported by Pascal Schelcher.
588 * Fixed byte and file totals for tar backups, reported by several users.
590 * Fixed --newer-mtime date/timestamp format to make it ISO 8601 compliant,
591 suggested by Erminio Baranzini.
593 * Fixed handling of $Conf{BackupFilesOnly} in BackupPC::Xfer::Tar.pm, as
594 well as shell escaping of tar arguments.
596 * Fixed entity encoding of 8-bit characters in the CGI interface.
598 * Added optional CGI headers in $Conf{CgiHeaders} that by default
599 is set to a no-cache pragma. Suggested by Benno Zuure.
601 #------------------------------------------------------------------------
602 # Version 1.4.0, 16 Mar 2002
603 #------------------------------------------------------------------------
605 * BackupPC now supports tar (in addition to smb) for extracting host
606 data. This is the most convenient option for linux/unix hosts.
607 Tar can be configured to run over ssh, rsh or to backup a local
608 nfs mount from the host.
610 * Support for special files, including symbolic links, fifo, character
611 and block device files has been added, so that all native linux/unix
612 file types can be correctly backed up when using tar transport.
613 Special files are all stored as regular files and the type attributes
614 are used to remember the original file type.
616 * All unix file attributes are now saved (and pooled when possible).
617 This includes user and group ownership, permissions, and modification
618 time. Smbclient also does a reasonable job of emulating unix
619 permissions (such as mtime), and these attributes get saved too.
621 * The new default is to not fill incremental dumps. configure.pl
622 automatically sets $Conf{IncrFill} to 0. The default was 1
623 (incrementals were filled with hardlinks). Since the CGI
624 script does filling at browsing time, there is no need to
625 fill incremental dumps.
627 * Backup file names are now stored in "mangled" form. Each node of a
628 path is preceded by "f", and special characters (\n, \r, % and /) are
629 URI-encoded as "%xx", where xx is the ascii character's hex value. So
630 c:/craig/example.txt is now stored as fc/fcraig/fexample.txt. This
631 was done mainly so meta-data could be stored alongside the backup
632 files without name collisions. In particular, the attributes for the
633 files in a directory are stored in a file called "attrib", and
634 mangling avoids file name collisions (I discarded the idea of having
635 a duplicate directory tree for every backup just to store the
636 attributes). Other meta-data (eg: rsync checksums) could be stored in
637 file names preceded by, eg, "c". There are two other benefits to
638 mangling: the share name might contain "/" (eg: "/home/craig" for tar
639 transport), and I wanted that represented as a single level in the
640 storage tree. Secondly, as files are written to NewFileList for later
641 processing by BackupPC_link, embedded newlines in the file's path
642 will cause problems which are avoided by mangling.
644 The CGI script undoes the mangling, so it is invisibe to the user.
645 Of course, old (unmangled) backups are still supported by the CGI
648 * Various changes to the CGI interface, BackupPC_Admin:
650 + Added button that allows users to manually start a full dump in
651 addition to the existing incremental dump.
653 + Added display of file attributes when browsing backups.
655 + Added an optional holdoff time specified by the user when canceling
656 a backup. BackupPC will not attempt any new backups for at least the
657 specified time. This holdoff time can be changed whether or not a
660 + Added supports for file mangling, and correct merging of unfilled
661 backups from mangled or unmangled (and compressed or uncompressed)
662 fulls when browsing or restoring.
664 + Only displays a "Start Incr Backup" button if there are already some
667 + For DHCP hosts, when a user tries to manually start a backup, add
668 a check for the netbios name of both the host the request came
669 from (REMOTE_ADDR) and the last known DHCP address for that host
670 to see if either address matches the host. If not, an error
671 message is display. The previous behavior was that only requests
672 from the client itself succeeded, and requests from other machines
675 * Changed the version numbering to X.Y.Z, instead of X.0Y. This release
676 is 1.4.0. The first digit is for major new releases, the middle digit
677 is for significant feature releases and improvements, and the last
678 digit is for bug fixes. You should think of the old 1.00, 1.01, 1.02
679 and 1.03 as 1.0.0, ..., 1.3.0.
681 * BackupPC and the CGI script BackupPC_Admin now check that the effective
682 user id is correct to avoid accidentally launching BackupPC as the
683 wrong user or detecting CGI configuration problems. This behavior
684 can be turned off using the $Conf{BackupPCUserVerify} option.
686 * In numerous places changed "Smb" to "Xfer" (eg: log file names) to
687 support generic names for both smb and tar transport methods. The
688 CGI script checks for old names for backward compatibility.
690 * Major changed to Backup_dump to support new tar transport. All transport
691 specific code moved into BackupPC::Xfer::Smb and BackupPC::Xfer::Tar
694 * Added workaround for a bug in Samba's smbclient for files between 2GB
695 and 4GB. The file size in the tar header is incorrect. This allows
696 files up to 4GB to work with smbclient, rather than 2GB. To support
697 files larger than 2GB you must make sure perl is compiled with the
698 uselargefiles option (use "perl -V | egrep largefiles" to check) and
699 the pool directory must be on a file system that supports large files.
701 * Moved the pool writing code into a module BackupPC::PoolWrite. This
702 allows the clever file pool checking (digest, uncompressing, comparing
703 etc with minimum disk IO) to be used easily in multiple places (eg: it
704 is now used for writing attribute files so they can be pooled).
706 * Changed MD5 to Digest::MD5 to avoid use of the depreceated MD5 module.
708 * Shortened default $Conf{MyPath} so that perl's taint mode is more likely
709 to be happy. The old $Conf{MyPath} contained /usr/local/bin, which
710 on one user's machine was world writable and perl -T correctly
713 * Fixed ping command options in Lib.pm so that it works on OpenBSD.
714 Thanks to Kyle Amon for sending the fix. Decided to move the
715 ping options from Lib.pm into config.pl (as $Conf{PingArgs}) and
716 now configure.pl tries to come up with a sensible default based on
719 * Fixed argument checking in BackupPC_tarExtract to allow '$' in the
720 share name (eg: C$). Thanks to Jules Agee for this fix. Also
721 changed the default config.pl so that single quotes are used
722 everywhere so that people don't get tripped up putting '$' inside
723 double-quoted strings.
725 #------------------------------------------------------------------------
726 # Version 1.03, 9 Dec 2001
727 #------------------------------------------------------------------------
729 * BackupPC now has full support for compression. There are now two
730 pool areas, the original pool for uncompressed files, and cpool for
731 compressed files. The compression is done by Compress::Zlib.
732 Compression reduces the pool disk usage by around 40%, although your
733 mileage may vary. Compression is optional and can also be specified on
734 a per-PC basis (although this will cost more pool storage since many
735 backup files will have to be stored in both compressed and
738 * A new script, BackupPC_compressPool, can be run to compress the entire
739 pool. This is used once to migrate all the pool data from uncompressed
740 to compressed on existing installations. Read the documentation
741 (Installing BackupPC/Compressing an existing pool) before running
742 BackupPC_compressPool!
744 Alternatively, compression can simply be turned on and all new backups
745 will be compressed. Both old (uncompressed) and new (compressed)
746 backups can be browsed and viewed. Eventually, the old backups will
747 expire and all the pool data will be compressed. However, until the
748 old backups expire, this approach could require 60% or more additional
749 pool storage space to store both uncompressed and compressed versions
752 * Significant improvements to the cgi interface, BackupPC_Admin:
754 - much better layout navigation
755 - handles compressed backup files and compressed log files
756 - handles unfilled incremental dumps
757 - better backup directory browsing navigation
758 - reports compression statistics
759 - $Conf{CgiDateFormatMMDD} allows you to set date format (MM/DD or DD/MM)
760 - Additional customization with $Conf{CgiHeaderFontType},
761 $Conf{CgiHeaderFontSize}, $Conf{CgiNavBarBgColor}, and
762 $Conf{CgiHeaderBgColor}.
764 * Eliminated BackupPC_queueAll. BackupPC directly reads the hosts
765 file and queues the PCs itself. Like config.pl, BackupPC will
766 re-read the hosts file on each wakeup if its modification time
767 changes, or upon a SIGHUP. This also makes for better behavior
768 when adding a host: if you add hosts, simply send a SIGHUP to
769 BackupPC or wait for the next wakeup.
771 * BackupPC_dump now compresses the SmbLOG file if compression is enabled.
773 * BackupPC_dump keeps track of compressed file sizes so that compression
774 statistics can be reported by the cgi interface.
776 * Aging of old log files now handles compressed log files (.z extension).
778 * Added configuration option $Conf{IncrFill} to specify whether
779 incremental dumps should be filled in. Old behavior was that
780 filling was on. Now it's optional. See config.pl for more
783 * BackupPC_nightly now cleans and generates statistics for both
784 the uncompressed pool and compressed pool (cpool).
786 * Added new utility script BackupPC_zcat that can be used to
787 uncompresses BackupPC files.
789 * configure.pl offers various options related to compression,
790 depending upon whether this is a new install or upgrade,
791 and whether or not Compress::Zlib is installed.
793 * configure.pl now makes a backup copy of config.pl before
794 config.pl is updated.
796 * added three new fields to the backups file to handle optional
797 filling and compression stats.
799 * Added -e option to BackupPC_dump. BackupPC now invokes BackupPC_dump -e
800 on each dhcp host once each night to verify that very old backups are
801 expired. This ensures that very old backups are expired even if
802 the dhcp host has not been on the network for a long time.
804 * fixed bug in BackupPC::FileZIO.pm that required Compress::Zlib,
805 even if compression was off. Thanks to Steve Holmes for reporting
808 * fixed bug that caused a BackupPC queue to get blocked when a backup
809 cancel attempt was made during the BackupPC_link phase.
811 #------------------------------------------------------------------------
812 # Version 1.02, 28 Oct 2001.
813 #------------------------------------------------------------------------
815 * Added new script BackupPC_tarExtract to extract the smbclient tar
816 archive. This reduces disk writes by perhaps 90-95% and disk reads by
817 50%. Previously, tar was used to extract and write everything to disk.
818 Then BackupPC_dump would read enough of each file to compute the MD5
819 digest, and then compare the full file with candidate pool files. So
820 for each 1MB file that matches a single file in the pool, there would
821 be 1MB of disk writes and 2MB of disk reads (to compare two 1MB files).
823 BackupPC_tarExtract instead extracts the archive using a 1MB memory
824 buffer. This allows the MD5 digest to be computed without touching the
825 disk. Next, any potential pool file compares are done by comparing the
826 pool file against the incoming tar data in memory, which only requires
827 the pool file to be read. So for each 1MB file that matches a single
828 file in the pool, there are now no disk writes, and only 1MB of reads.
829 BackupPC_tarExtract handles arbitrary size files and repeated
830 potential pool matches. If the incoming file doesn't match the pool
831 then it is written to disk (once the pool is mature this happens maybe
834 * Substantial changes to BackupPC_dump:
836 + BackupPC_tarExtract is now used in place of tar.
838 + BackupPC_dump now reads the output from both smbclient and
839 BackupPC_tarExtract and merges them into SmbLOG.
841 + Named pipes are no longer used to connect smbclient to tar
842 (now BackupPC_tarExtract). Regular pipes are used instead.
843 This avoids the need to system mknod or mkfifo.
845 + Locked files on the client that can't be read by smbclient
846 previously were filled with 0x0 bytes by smbclient, meaning
847 tar extracted a useless file filled with 0x0 bytes. Now,
848 BackupPC_dump watches the output of smbclient and removes
849 any files that smbclient couldn't read. This avoids storing
850 useless files. It tries to replace such files with a hard link
851 to a previous dump. These actions appear in the log file.
853 * added new module lib/BackupPC/FileZIO.pm. This handles pool file
854 I/O and is used by BackupPC_tarExtract. BackupPC::FileIO supports
855 reading and writing compressed and regular files and provides all the
856 hooks for compression support in BackupPC (should be supported in next
857 version). BackupPC::FileIO also does efficient writing of files that
858 contain leading 0x0 bytes (by seeking past the 0x0 bytes). This is
859 helpful when smbclient reads a locked file, and it fills the tar
860 output with a file of the correct size but all 0x0. Such files will be
861 later removed by BackupPC_dump. But in the meantime, BackupPC::FileIO
862 writes such files efficiently (as sparse files), meaning just a few
863 blocks of disk space will be needed even if the file is large.
865 * alive/dead counting for blackout now works correctly for DHCP hosts.
867 * BackupPC resets activeJob on startup, to fix bug when BackupPC was
868 killed and restarted with backups running.
870 * added extra non blocking select() in BackupPC to make sure the socket
873 * BackupPC avoids queuing multiple BackupPC_queueAll's on the CmdQueue.
875 * Updated BackupPC_sendEmail to correctly parse the locked file
876 error from 2.2.1a smbclient, so that missing Outlook file emails
877 can be correctly sent.
879 * Changed HostInfoRead() in lib/BackupPC/Lib.pm to lowercase the
880 hostname read from the hosts file.
882 * BackupPC_Admin provides general summary when the host name is empty.
884 * configure.pl (and BackupPC) now requires perl 5.6.0 or later.
886 * configure.pl complains if BackupPC is already running, reminding you
887 to stop it before upgrading.
889 * updated documentation, and fixed auto-insertion of config.pl into
890 BackupPC.pod (previously the last config parameter was left out of
893 #------------------------------------------------------------------------
894 # Version 1.01, 30 Sep 2001
895 #------------------------------------------------------------------------
897 * Documentation cleanup in README, doc/BackupPC.pod, conf/config.pl.
899 * BackupPC_sendMail now reads the optional per-PC config file, allowing
900 email configuration parameters to be set on a per-PC basis.
902 * Removed the unused 4096-length MD5 digest code in lib/BackupPC/Lib.pm.
904 #------------------------------------------------------------------------
905 # Version 1.00, 21 Sep 2001
906 #------------------------------------------------------------------------
908 * Initial release of BackupPC on sourceforge.net.