2 #============================================================= -*-perl-*-
4 # BackupPC_dump: Dump a single client.
8 # Usage: BackupPC_dump [-i] [-f] [-F] [-I] [-d] [-e] [-v] <client>
12 # -i Do an incremental dump, overriding any scheduling (but a full
13 # dump will be done if no dumps have yet succeeded)
15 # -f Do a full dump, overriding any scheduling.
17 # -I Do an increment dump if the regular schedule requires a
18 # full or incremental, otherwise do nothing (a full is done
19 # if no dumps have yet succeeded)
21 # -F Do a full dump if the regular schedule requires a
22 # full or incremental, otherwise do nothing
24 # -d Host is a DHCP pool address, and the client argument
25 # just an IP address. We lookup the NetBios name from
28 # -e Just do an dump expiry check for the client. Don't do anything
29 # else. This is used periodically by BackupPC to make sure that
30 # dhcp hosts have correctly expired old backups. Without this,
31 # dhcp hosts that are no longer on the network will not expire
34 # -v verbose. for manual usage: prints failure reasons in more detail.
36 # BackupPC_dump is run periodically by BackupPC to backup $client.
37 # The file $TopDir/pc/$client/backups is read to decide whether a
38 # full or incremental backup needs to be run. If no backup is
39 # scheduled, or a ping to $client fails, then BackupPC_dump quits.
41 # The backup is done using the selected XferMethod (smb, tar, rsync,
42 # backuppcd etc), extracting the dump into $TopDir/pc/$client/new.
43 # The xfer output is put into $TopDir/pc/$client/XferLOG.
45 # If the dump succeeds (based on parsing the output of the XferMethod):
46 # - $TopDir/pc/$client/new is renamed to $TopDir/pc/$client/nnn, where
47 # nnn is the next sequential dump number.
48 # - $TopDir/pc/$client/XferLOG is renamed to $TopDir/pc/$client/XferLOG.nnn.
49 # - $TopDir/pc/$client/backups is updated.
52 # - $TopDir/pc/$client/new is moved to $TopDir/trash for later removal.
53 # - $TopDir/pc/$client/XferLOG is renamed to $TopDir/pc/$client/XferLOG.bad
56 # BackupPC_dump communicates to BackupPC via printing to STDOUT.
59 # Craig Barratt <cbarratt@users.sourceforge.net>
62 # Copyright (C) 2001-2007 Craig Barratt
64 # This program is free software; you can redistribute it and/or modify
65 # it under the terms of the GNU General Public License as published by
66 # the Free Software Foundation; either version 2 of the License, or
67 # (at your option) any later version.
69 # This program is distributed in the hope that it will be useful,
70 # but WITHOUT ANY WARRANTY; without even the implied warranty of
71 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
72 # GNU General Public License for more details.
74 # You should have received a copy of the GNU General Public License
75 # along with this program; if not, write to the Free Software
76 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
78 #========================================================================
80 # Version 3.2.0beta0, released 17 Jan 2009.
82 # See http://backuppc.sourceforge.net.
84 #========================================================================
88 use lib "/usr/local/BackupPC/lib";
90 use BackupPC::FileZIO;
91 use BackupPC::Storage;
99 ###########################################################################
101 ###########################################################################
103 die("BackupPC::Lib->new failed\n") if ( !(my $bpc = BackupPC::Lib->new) );
104 my $TopDir = $bpc->TopDir();
105 my $BinDir = $bpc->BinDir();
106 my %Conf = $bpc->Conf();
115 if ( !getopts("defivFI", \%opts) || @ARGV != 1 ) {
116 print("usage: $0 [-d] [-e] [-f] [-i] [-F] [-I] [-v] <client>\n");
119 if ( $ARGV[0] !~ /^([\w\.\s-]+)$/ ) {
120 print("$0: bad client name '$ARGV[0]'\n");
123 if ( (defined($opts{f}) + defined($opts{i}) + defined($opts{F}) + defined($opts{I})) > 1 ) {
124 print("$0: exiting because you can only use one of -f, -i, -F, and -I\n");
128 my $client = $1; # BackupPC's client name (might not be real host name)
129 my $hostIP; # this is the IP address
130 my $host; # this is the real host name
132 my($clientURI, $user);
134 $bpc->verbose(1) if ( $opts{v} );
138 # The client name $client is simply a DHCP address. We need to check
139 # if there is any machine at this address, and if so, get the actual
140 # host name via NetBios using nmblookup.
143 if ( $bpc->CheckHostAlive($hostIP) < 0 ) {
144 print(STDERR "Exiting because CheckHostAlive($hostIP) failed\n")
148 if ( $Conf{NmbLookupCmd} eq "" ) {
149 print(STDERR "Exiting because \$Conf{NmbLookupCmd} is empty\n")
153 ($client, $user) = $bpc->NetBiosInfoGet($hostIP);
154 if ( $client !~ /^([\w\.\s-]+)$/ ) {
155 print(STDERR "Exiting because NetBiosInfoGet($hostIP) returned"
156 . " '$client', an invalid host name\n") if ( $opts{v} );
159 $Hosts = $bpc->HostInfoRead($client);
162 $Hosts = $bpc->HostInfoRead($client);
164 if ( !defined($Hosts->{$client}) ) {
165 print(STDERR "Exiting because host $client does not exist in the"
166 . " hosts file\n") if ( $opts{v} );
170 my $Dir = "$TopDir/pc/$client";
173 my $completionPercent;
176 # Re-read config file, so we can include the PC-specific config
178 $clientURI = $bpc->uriEsc($client);
179 if ( defined(my $error = $bpc->ConfigRead($client)) ) {
180 print("dump failed: Can't read PC's config file: $error\n");
183 %Conf = $bpc->Conf();
186 # Catch various signals
188 $SIG{INT} = \&catch_signal;
189 $SIG{ALRM} = \&catch_signal;
190 $SIG{TERM} = \&catch_signal;
191 $SIG{PIPE} = \&catch_signal;
192 $SIG{STOP} = \&catch_signal;
193 $SIG{TSTP} = \&catch_signal;
194 $SIG{TTIN} = \&catch_signal;
198 # Make sure we eventually timeout if there is no activity from
199 # the data transport program.
201 alarm($Conf{ClientTimeout});
203 mkpath($Dir, 0, 0777) if ( !-d $Dir );
204 if ( !-f "$Dir/LOCK" ) {
205 open(LOCK, ">", "$Dir/LOCK") && close(LOCK);
208 my($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
209 my $logPath = sprintf("$Dir/LOG.%02d%04d", $mon + 1, $year + 1900);
211 if ( !-f $logPath ) {
213 # Compress and prune old log files
215 my $lastLog = $Conf{MaxOldPerPCLogFiles} - 1;
216 foreach my $file ( $bpc->sortedPCLogFiles($client) ) {
217 if ( $lastLog <= 0 ) {
222 next if ( $file =~ /\.z$/ || !$Conf{CompressLevel} );
223 BackupPC::FileZIO->compressCopy($file,
226 $Conf{CompressLevel}, 1);
230 open(LOG, ">>", $logPath);
231 select(LOG); $| = 1; select(STDOUT);
234 # For the -e option we just expire backups and quit
237 BackupExpire($client);
242 # For archive hosts we don't bother any further
244 if ($Conf{XferMethod} eq "archive" ) {
245 print(STDERR "Exiting because the XferMethod is set to archive\n")
250 ###########################################################################
251 # Figure out what to do and do it
252 ###########################################################################
255 # See if we should skip this host during a certain range
258 my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort});
260 print("Can't connect to server ($err)\n");
261 print(LOG $bpc->timeStamp, "Can't connect to server ($err)\n");
264 my $reply = $bpc->ServerMesg("status host($clientURI)");
265 $reply = $1 if ( $reply =~ /(.*)/s );
268 $bpc->ServerDisconnect();
271 # For DHCP tell BackupPC which host this is
274 if ( $StatusHost{activeJob} ) {
275 # oops, something is already running for this host
276 print(STDERR "Exiting because backup is already running for $client\n")
280 print("DHCP $hostIP $clientURI\n");
283 my($needLink, @Backups, $type);
284 my($incrBaseTime, $incrBaseBkupNum, $incrBaseLevel, $incrLevel);
285 my $lastFullTime = 0;
286 my $lastIncrTime = 0;
294 # Maintain backward compatibility with $Conf{FullPeriod} == -1 or -2
295 # meaning disable backups
297 $Conf{BackupsDisable} = -$Conf{FullPeriod}
298 if ( !$Conf{BackupsDisable} && $Conf{FullPeriod} < 0 );
300 if ( $Conf{BackupsDisable} == 1 && !$opts{f} && !$opts{i}
301 || $Conf{BackupsDisable} == 2 ) {
302 print(STDERR "Exiting because backups are disabled with"
303 . " \$Conf{BackupsDisable} = $Conf{BackupsDisable}\n") if ( $opts{v} );
305 # Tell BackupPC to ignore old failed backups on hosts that
306 # have backups disabled.
308 print("backups disabled\n")
309 if ( defined($StatusHost{errorTime})
310 && $StatusHost{reason} ne "Reason_backup_done"
311 && time - $StatusHost{errorTime} > 4 * 24 * 3600 );
312 NothingToDo($needLink);
315 if ( !$opts{i} && !$opts{f} && $Conf{BlackoutGoodCnt} >= 0
316 && $StatusHost{aliveCnt} >= $Conf{BlackoutGoodCnt} ) {
317 my($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
318 my($currHours) = $hour + $min / 60 + $sec / 3600;
321 foreach my $p ( @{$Conf{BlackoutPeriods}} ) {
323 # Allow blackout to span midnight (specified by hourBegin
324 # being greater than hourEnd)
326 next if ( ref($p->{weekDays}) ne "ARRAY"
327 || !defined($p->{hourBegin})
328 || !defined($p->{hourEnd})
330 if ( $p->{hourBegin} > $p->{hourEnd} ) {
331 $blackout = $p->{hourBegin} <= $currHours
332 || $currHours <= $p->{hourEnd};
333 if ( $currHours <= $p->{hourEnd} ) {
335 # This is after midnight, so decrement the weekday for the
336 # weekday check (eg: Monday 11pm-1am means Monday 2300 to
337 # Tuesday 0100, not Monday 2300-2400 plus Monday 0000-0100).
340 $wday += 7 if ( $wday < 0 );
343 $blackout = $p->{hourBegin} <= $currHours
344 && $currHours <= $p->{hourEnd};
346 if ( $blackout && grep($_ == $wday, @{$p->{weekDays}}) ) {
347 # print(LOG $bpc->timeStamp, "skipping because of blackout"
348 # . " (alive $StatusHost{aliveCnt} times)\n");
349 print(STDERR "Skipping $client because of blackout\n")
351 NothingToDo($needLink);
356 if ( !$opts{i} && !$opts{f} && $StatusHost{backoffTime} > time ) {
357 printf(LOG "%sskipping because of user requested delay (%.1f hours left)\n",
358 $bpc->timeStamp, ($StatusHost{backoffTime} - time) / 3600);
359 NothingToDo($needLink);
363 # Now see if there are any old backups we should delete
365 BackupExpire($client);
367 my(@lastIdxByLevel, $incrCntSinceFull);
370 # Read Backup information, and find times of the most recent full and
371 # incremental backups. Also figure out which backup we will use
372 # as a starting point for an incremental.
374 @Backups = $bpc->BackupInfoRead($client);
375 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
376 $needLink = 1 if ( $Backups[$i]{nFilesNew} eq ""
377 || -f "$Dir/NewFileList.$Backups[$i]{num}" );
378 if ( $Backups[$i]{type} eq "full" ) {
379 $incrCntSinceFull = 0;
380 $lastBkupNum = $Backups[$i]{num};
381 $lastIdxByLevel[0] = $i;
382 if ( $lastFullTime < $Backups[$i]{startTime} ) {
383 $lastFullTime = $Backups[$i]{startTime};
385 } elsif ( $Backups[$i]{type} eq "incr" ) {
387 $lastBkupNum = $Backups[$i]{num};
388 $lastIdxByLevel[$Backups[$i]{level}] = $i;
389 $lastIncrTime = $Backups[$i]{startTime}
390 if ( $lastIncrTime < $Backups[$i]{startTime} );
391 } elsif ( $Backups[$i]{type} eq "partial" ) {
393 $lastPartial = $Backups[$i]{startTime};
394 $partialNum = $Backups[$i]{num};
395 $partialFileCnt = $Backups[$i]{nFiles};
400 # Decide whether we do nothing, or a full or incremental backup.
402 my $needs_full = (time - $lastFullTime > $Conf{FullPeriod} * 24 * 3600
403 && time - $lastIncrTime > $Conf{IncrPeriod} * 24 * 3600);
404 my $needs_incr = (time - $lastIncrTime > $Conf{IncrPeriod} * 24 * 3600
405 && time - $lastFullTime > $Conf{IncrPeriod} * 24 * 3600);
407 if ( $lastFullTime == 0
409 || (!$opts{i} && !$opts{I} && $needs_full)
410 || ( $opts{F} && $needs_incr) ) {
413 $incrBaseBkupNum = $lastBkupNum;
416 || ($opts{I} && $needs_full) ) {
419 # For an incremental backup, figure out which level we should
420 # do and the index of the reference backup, which is the most
421 # recent backup at any lower level.
423 @{$Conf{IncrLevels}} = [$Conf{IncrLevels}]
424 unless ref($Conf{IncrLevels}) eq "ARRAY";
425 @{$Conf{IncrLevels}} = [1] if ( !@{$Conf{IncrLevels}} );
426 $incrCntSinceFull = $incrCntSinceFull % @{$Conf{IncrLevels}};
427 $incrLevel = $Conf{IncrLevels}[$incrCntSinceFull];
428 for ( my $i = 0 ; $i < $incrLevel ; $i++ ) {
429 my $idx = $lastIdxByLevel[$i];
430 next if ( !defined($idx) );
431 if ( !defined($incrBaseTime)
432 || $Backups[$idx]{startTime} > $incrBaseTime ) {
433 $incrBaseBkupNum = $Backups[$idx]{num};
434 $incrBaseLevel = $Backups[$idx]{level};
435 $incrBaseTime = $Backups[$idx]{startTime};
439 # Can't find any earlier lower-level backup! Shouldn't
440 # happen - just do full instead
442 if ( !defined($incrBaseBkupNum) || $incrLevel < 1 ) {
444 $incrBaseBkupNum = $lastBkupNum;
447 NothingToDo($needLink);
451 # Create top-level directories if they don't exist
455 "$Conf{TopDir}/pool",
456 "$Conf{TopDir}/cpool",
458 "$Conf{TopDir}/trash",
461 mkpath($dir, 0, 0750);
463 print("Failed to create $dir\n");
464 printf(LOG "%sFailed to create directory %s\n", $bpc->timeStamp, $dir);
465 print("link $clientURI\n") if ( $needLink );
468 printf(LOG "%sCreated directory %s\n", $bpc->timeStamp, $dir);
472 if ( !$bpc->HardlinkTest($Dir, "$TopDir/cpool") ) {
473 print(LOG $bpc->timeStamp, "Can't create a test hardlink between a file"
474 . " in $Dir and $TopDir/cpool. Either these are different"
475 . " file systems, or this file system doesn't support hardlinks,"
476 . " or these directories don't exist, or there is a permissions"
477 . " problem, or the file system is out of inodes or full. Use"
478 . " df, df -i, and ls -ld to check each of these possibilities."
480 print("test hardlink between $Dir and $TopDir/cpool failed\n");
481 print("link $clientURI\n") if ( $needLink );
487 # In the non-DHCP case, make sure the host can be looked up
488 # via NS, or otherwise find the IP address via NetBios.
490 if ( $Conf{ClientNameAlias} ne "" ) {
491 $host = $Conf{ClientNameAlias};
495 if ( !defined(gethostbyname($host)) ) {
497 # Ok, NS doesn't know about it. Maybe it is a NetBios name
500 print(STDERR "Name server doesn't know about $host; trying NetBios\n")
502 if ( !defined($hostIP = $bpc->NetBiosHostIPFind($host)) ) {
503 print(LOG $bpc->timeStamp, "Can't find host $host via netbios\n");
504 print("host not found\n");
513 # Check if $host is alive
515 my $delay = $bpc->CheckHostAlive($hostIP);
517 print(LOG $bpc->timeStamp, "no ping response\n");
518 print("no ping response\n");
519 print("link $clientURI\n") if ( $needLink );
521 } elsif ( $delay > $Conf{PingMaxMsec} ) {
522 printf(LOG "%sping too slow: %.4gmsec\n", $bpc->timeStamp, $delay);
523 printf("ping too slow: %.4gmsec (threshold is %gmsec)\n",
524 $delay, $Conf{PingMaxMsec});
525 print("link $clientURI\n") if ( $needLink );
530 # Make sure it is really the machine we expect (only for fixed addresses,
531 # since we got the DHCP address above).
533 if ( !$opts{d} && (my $errMsg = CorrectHostCheck($hostIP, $host)) ) {
534 print(LOG $bpc->timeStamp, "dump failed: $errMsg\n");
535 print("dump failed: $errMsg\n");
537 } elsif ( $opts{d} ) {
538 print(LOG $bpc->timeStamp, "$host is dhcp $hostIP, user is $user\n");
542 # Get a clean directory $Dir/new
544 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
547 # Setup file extension for compression and open XferLOG output file
549 if ( $Conf{CompressLevel} && !BackupPC::FileZIO->compOk ) {
550 print(LOG $bpc->timeStamp, "dump failed: can't find Compress::Zlib\n");
551 print("dump failed: can't find Compress::Zlib\n");
554 my $fileExt = $Conf{CompressLevel} > 0 ? ".z" : "";
555 my $XferLOG = BackupPC::FileZIO->open("$Dir/XferLOG$fileExt", 1,
556 $Conf{CompressLevel});
557 if ( !defined($XferLOG) ) {
558 print(LOG $bpc->timeStamp, "dump failed: unable to open/create"
559 . " $Dir/XferLOG$fileExt\n");
560 print("dump failed: unable to open/create $Dir/XferLOG$fileExt\n");
565 # Ignore the partial dump in the case of an incremental
566 # or when the partial is too old. A partial is a partial full.
568 if ( $type ne "full" || time - $lastPartial > $Conf{PartialAgeMax} * 24*3600 ) {
574 # If this is a partial, copy the old XferLOG file
577 my($compress, $fileName);
578 if ( -f "$Dir/XferLOG.$partialNum.z" ) {
579 $fileName = "$Dir/XferLOG.$partialNum.z";
581 } elsif ( -f "$Dir/XferLOG.$partialNum" ) {
582 $fileName = "$Dir/XferLOG.$partialNum";
585 if ( my $oldLOG = BackupPC::FileZIO->open($fileName, 0, $compress) ) {
587 while ( $oldLOG->read(\$data, 65536) > 0 ) {
588 $XferLOG->write(\$data);
594 $XferLOG->writeTeeStderr(1) if ( $opts{v} );
595 unlink("$Dir/NewFileList") if ( -f "$Dir/NewFileList" );
597 my $startTime = time();
601 my $sizeExistComp = 0;
604 my($logMsg, %stat, $xfer, $ShareNames, $noFilesErr);
607 $ShareNames = BackupPC::Xfer::getShareNames(\%Conf);
610 # Run an optional pre-dump command
612 UserCommandRun("DumpPreUserCmd");
613 if ( $? && $Conf{UserCmdCheckStatus} ) {
614 print(LOG $bpc->timeStamp,
615 "DumpPreUserCmd returned error status $?... exiting\n");
616 $XferLOG->write(\"DumpPreUserCmd returned error status $?... exiting\n");
617 $stat{hostError} = "DumpPreUserCmd returned error status $?";
623 # Now backup each of the shares
625 for my $shareName ( @$ShareNames ) {
629 # Convert $shareName to utf8 octets
631 $shareName = encode("utf8", $shareName);
632 $stat{xferOK} = $stat{hostAbort} = undef;
633 $stat{hostError} = $stat{lastOutputLine} = undef;
634 if ( -d "$Dir/new/$shareName" ) {
635 print(LOG $bpc->timeStamp,
636 "unexpected repeated share name $shareName skipped\n");
640 UserCommandRun("DumpPreShareCmd", $shareName);
641 if ( $? && $Conf{UserCmdCheckStatus} ) {
642 print(LOG $bpc->timeStamp,
643 "DumpPreShareCmd returned error status $?... exiting\n");
644 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
645 $XferLOG->write(\"DumpPreShareCmd returned error status $?... exiting\n");
646 $stat{hostError} = "DumpPreShareCmd returned error status $?";
650 $xfer = BackupPC::Xfer::create($Conf{XferMethod}, $bpc);
651 if ( !defined($xfer) ) {
652 my $errStr = BackupPC::Xfer::errStr();
653 print(LOG $bpc->timeStamp, "dump failed: $errStr\n");
654 UserCommandRun("DumpPostShareCmd", $shareName) if ( $NeedPostCmd );
655 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
656 $XferLOG->write(\"BackupPC::Xfer::create failed: $errStr\n");
657 $stat{hostError} = $errStr;
661 my $useTar = $xfer->useTar;
665 # This xfer method outputs a tar format file, so we start a
666 # BackupPC_tarExtract to extract the data.
668 # Create a socketpair to connect the Xfer method to BackupPC_tarExtract
669 # WH is the write handle for writing, provided to the transport
670 # program, and RH is the other end of the socket for reading,
671 # provided to BackupPC_tarExtract.
673 if ( socketpair(RH, WH, AF_UNIX, SOCK_STREAM, PF_UNSPEC) ) {
674 shutdown(RH, 1); # no writing to this socket
675 shutdown(WH, 0); # no reading from this socket
676 setsockopt(RH, SOL_SOCKET, SO_RCVBUF, 8 * 65536);
677 setsockopt(WH, SOL_SOCKET, SO_SNDBUF, 8 * 65536);
680 # Default to pipe() if socketpair() doesn't work.
686 # fork a child for BackupPC_tarExtract. TAR is a file handle
687 # on which we (the parent) read the stdout & stderr from
688 # BackupPC_tarExtract.
690 if ( !defined($tarPid = open(TAR, "-|")) ) {
691 print(LOG $bpc->timeStamp, "can't fork to run tar\n");
692 print("can't fork to run tar\n");
700 # This is the tar child. Close the write end of the pipe,
701 # clone STDERR to STDOUT, clone STDIN from RH, and then
702 # exec BackupPC_tarExtract.
707 open(STDERR, ">&STDOUT");
711 exec("$BinDir/BackupPC_tarExtract", $client, $shareName,
712 $Conf{CompressLevel});
713 print(LOG $bpc->timeStamp,
714 "can't exec $BinDir/BackupPC_tarExtract\n");
717 } elsif ( !defined($newFilesFH) ) {
719 # We need to create the NewFileList output file
722 open(NEW_FILES, ">", "$TopDir/pc/$client/NewFileList")
723 || die("can't open $TopDir/pc/$client/NewFileList");
724 $newFilesFH = *NEW_FILES;
729 # Run the transport program
735 shareName => $shareName,
739 newFilesFH => $newFilesFH,
742 incrBaseTime => $incrBaseTime,
743 incrBaseBkupNum => $incrBaseBkupNum,
744 backups => \@Backups,
745 compress => $Conf{CompressLevel},
746 XferMethod => $Conf{XferMethod},
747 logLevel => $Conf{XferLogLevel},
748 partialNum => $partialNum,
749 pidHandler => \&pidHandler,
750 completionPercent => \&completionPercent,
753 if ( !defined($logMsg = $xfer->start()) ) {
754 my $errStr = "xfer start failed: " . $xfer->errStr . "\n";
755 print(LOG $bpc->timeStamp, $errStr);
757 # kill off the tar process, first nicely then forcefully
760 kill($bpc->sigName2num("INT"), $tarPid);
762 kill($bpc->sigName2num("KILL"), $tarPid);
765 kill($bpc->sigName2num("INT"), @xferPid);
767 kill($bpc->sigName2num("KILL"), @xferPid);
769 UserCommandRun("DumpPostShareCmd", $shareName) if ( $NeedPostCmd );
770 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
771 $XferLOG->write(\"xfer start failed: $errStr\n");
772 $stat{hostError} = $errStr;
776 @xferPid = $xfer->xferPid;
780 # The parent must close both handles on the pipe since the children
781 # are using these handles now.
786 print(LOG $bpc->timeStamp, $logMsg, "\n");
787 $XferLOG->write(\"$logMsg\n");
788 print("started $type dump, share=$shareName\n");
790 pidHandler(@xferPid);
794 # Parse the output of the transfer program and BackupPC_tarExtract
795 # while they run. Since we might be reading from two or more children
798 my($FDread, $tarOut, $mesg);
799 vec($FDread, fileno(TAR), 1) = 1;
800 $xfer->setSelectMask(\$FDread);
804 last if ( $FDread =~ /^\0*$/ );
805 select(my $rout = $FDread, undef, $ein, undef);
806 if ( vec($rout, fileno(TAR), 1) ) {
807 if ( sysread(TAR, $mesg, 8192) <= 0 ) {
808 vec($FDread, fileno(TAR), 1) = 0;
814 while ( $tarOut =~ /(.*?)[\n\r]+(.*)/s ) {
818 $XferLOG->write(\"$_\n");
820 $XferLOG->write(\"tarExtract: $_\n");
822 if ( /^BackupPC_tarExtact aborting \((.*)\)/ ) {
823 $stat{hostError} = $1;
825 if ( /^Done: (\d+) errors, (\d+) filesExist, (\d+) sizeExist, (\d+) sizeExistComp, (\d+) filesTotal, (\d+) sizeTotal/ ) {
829 $sizeExistComp += $4;
834 last if ( !$xfer->readOutput(\$FDread, $rout) );
835 while ( my $str = $xfer->logMsgGet ) {
836 print(LOG $bpc->timeStamp, "xfer: $str\n");
838 if ( $xfer->getStats->{fileCnt} == 1 ) {
840 # Make sure it is still the machine we expect. We do this while
841 # the transfer is running to avoid a potential race condition if
842 # the ip address was reassigned by dhcp just before we started
845 if ( my $errMsg = CorrectHostCheck($hostIP, $host) ) {
846 $stat{hostError} = $errMsg if ( $stat{hostError} eq "" );
853 # otherwise the xfer module does everything for us
855 my @results = $xfer->run();
856 $tarErrs += $results[0];
857 $nFilesExist += $results[1];
858 $sizeExist += $results[2];
859 $sizeExistComp += $results[3];
860 $nFilesTotal += $results[4];
861 $sizeTotal += $results[5];
865 # Merge the xfer status (need to accumulate counts)
867 my $newStat = $xfer->getStats;
868 if ( $newStat->{fileCnt} == 0 ) {
869 $noFilesErr ||= "No files dumped for share $shareName";
871 foreach my $k ( (keys(%stat), keys(%$newStat)) ) {
872 next if ( !defined($newStat->{$k}) );
873 if ( $k =~ /Cnt$/ ) {
874 $stat{$k} += $newStat->{$k};
875 delete($newStat->{$k});
878 if ( !defined($stat{$k}) ) {
879 $stat{$k} = $newStat->{$k};
880 delete($newStat->{$k});
885 if ( $NeedPostCmd ) {
886 UserCommandRun("DumpPostShareCmd", $shareName);
887 if ( $? && $Conf{UserCmdCheckStatus} ) {
888 print(LOG $bpc->timeStamp,
889 "DumpPostShareCmd returned error status $?... exiting\n");
890 $stat{hostError} = "DumpPostShareCmd returned error status $?";
894 $stat{xferOK} = 0 if ( $stat{hostError} || $stat{hostAbort} );
895 if ( !$stat{xferOK} ) {
897 # kill off the transfer program, first nicely then forcefully
900 kill($bpc->sigName2num("INT"), @xferPid);
902 kill($bpc->sigName2num("KILL"), @xferPid);
905 # kill off the tar process, first nicely then forcefully
908 kill($bpc->sigName2num("INT"), $tarPid);
910 kill($bpc->sigName2num("KILL"), $tarPid);
913 # don't do any more shares on this host
920 # If this is a full, and any share had zero files then consider the dump bad
922 if ( $type eq "full" && $stat{hostError} eq ""
923 && length($noFilesErr) && $Conf{BackupZeroFilesIsFatal} ) {
924 $stat{hostError} = $noFilesErr;
928 $stat{xferOK} = 0 if ( $Abort );
931 # If there is no "new" directory then the backup is bad
933 if ( $stat{xferOK} && !-d "$Dir/new" ) {
934 $stat{hostError} = "No backup directory $Dir/new"
935 if ( $stat{hostError} eq "" );
940 # Do one last check to make sure it is still the machine we expect.
942 if ( $stat{xferOK} && (my $errMsg = CorrectHostCheck($hostIP, $host)) ) {
943 $stat{hostError} = $errMsg;
947 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
948 if ( $? && $Conf{UserCmdCheckStatus} ) {
949 print(LOG $bpc->timeStamp,
950 "DumpPostUserCmd returned error status $?... exiting\n");
951 $stat{hostError} = "DumpPostUserCmd returned error status $?";
954 close($newFilesFH) if ( defined($newFilesFH) );
956 my $endTime = time();
959 # If the dump failed, clean up
961 if ( !$stat{xferOK} ) {
962 $stat{hostError} = $stat{lastOutputLine} if ( $stat{hostError} eq "" );
963 if ( $stat{hostError} ) {
964 print(LOG $bpc->timeStamp,
965 "Got fatal error during xfer ($stat{hostError})\n");
966 $XferLOG->write(\"Got fatal error during xfer ($stat{hostError})\n");
970 # wait a short while and see if the system is still alive
973 if ( $bpc->CheckHostAlive($hostIP) < 0 ) {
974 $stat{hostAbort} = 1;
976 if ( $stat{hostAbort} ) {
977 $stat{hostError} = "lost network connection during backup";
979 print(LOG $bpc->timeStamp, "Backup aborted ($stat{hostError})\n");
980 $XferLOG->write(\"Backup aborted ($stat{hostError})\n");
982 $XferLOG->write(\"Backup aborted by user signal\n");
986 # Close the log file and call BackupFailCleanup, which exits.
991 my $newNum = BackupSave();
993 my $otherCount = $stat{xferErrCnt} - $stat{xferBadFileCnt}
994 - $stat{xferBadShareCnt};
995 $stat{fileCnt} ||= 0;
996 $stat{byteCnt} ||= 0;
997 $stat{xferErrCnt} ||= 0;
998 $stat{xferBadFileCnt} ||= 0;
999 $stat{xferBadShareCnt} ||= 0;
1000 print(LOG $bpc->timeStamp,
1001 "$type backup $newNum complete, $stat{fileCnt} files,"
1002 . " $stat{byteCnt} bytes,"
1003 . " $stat{xferErrCnt} xferErrs ($stat{xferBadFileCnt} bad files,"
1004 . " $stat{xferBadShareCnt} bad shares, $otherCount other)\n");
1006 BackupExpire($client);
1008 print("$type backup complete\n");
1010 ###########################################################################
1012 ###########################################################################
1018 print("nothing to do\n");
1019 print("link $clientURI\n") if ( $needLink );
1025 my $sigName = shift;
1028 # The first time we receive a signal we try to gracefully
1029 # abort the backup. This allows us to keep a partial dump
1030 # with the in-progress file deleted and attribute caches
1031 # flushed to disk etc.
1033 if ( !length($SigName) ) {
1035 if ( $sigName eq "INT" ) {
1036 $reason = "aborted by user (signal=$sigName)";
1038 $reason = "aborted by signal=$sigName";
1042 # Parent logs a message
1044 print(LOG $bpc->timeStamp,
1045 "Aborting backup up after signal $sigName\n");
1048 # Tell xfer to abort, but only if we actually started one
1050 $xfer->abort($reason) if ( defined($xfer) );
1053 # Send ALRMs to BackupPC_tarExtract if we are using it
1055 if ( $tarPid > 0 ) {
1056 kill($bpc->sigName2num("ARLM"), $tarPid);
1060 # Schedule a 20 second timer in case the clean
1061 # abort doesn't complete
1066 # Children ignore anything other than ALRM and INT
1068 if ( $sigName ne "ALRM" && $sigName ne "INT" ) {
1073 # The child also tells xfer to abort
1075 $xfer->abort($reason);
1078 # Schedule a 15 second timer in case the clean
1079 # abort doesn't complete
1083 $SigName = $sigName;
1089 # This is a second signal: time to clean up.
1091 if ( $Pid != $$ && ($sigName eq "ALRM" || $sigName eq "INT") ) {
1093 # Children quit quietly on ALRM or INT
1099 # Ignore other signals in children
1101 return if ( $Pid != $$ );
1103 $SIG{$sigName} = 'IGNORE';
1104 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
1105 $XferLOG->write(\"exiting after signal $sigName\n");
1107 kill($bpc->sigName2num("INT"), @xferPid);
1109 kill($bpc->sigName2num("KILL"), @xferPid);
1111 if ( $tarPid > 0 ) {
1112 kill($bpc->sigName2num("INT"), $tarPid);
1114 kill($bpc->sigName2num("KILL"), $tarPid);
1116 if ( $sigName eq "INT" ) {
1117 $stat{hostError} = "aborted by user (signal=$sigName)";
1119 $stat{hostError} = "received signal=$sigName";
1121 BackupFailCleanup();
1124 sub CheckForNewFiles
1126 if ( -f _ && $File::Find::name !~ /\/fattrib$/ ) {
1130 # No need to check entire tree
1132 $File::Find::prune = 1 if ( $nFilesTotal );
1136 sub BackupFailCleanup
1138 my $fileExt = $Conf{CompressLevel} > 0 ? ".z" : "";
1139 my $keepPartial = 0;
1142 # We keep this backup if it is a full and we actually backed
1143 # up some files. If the prior backup was a partial too, we
1144 # only keep this backup if it has more files than the previous
1147 if ( $type eq "full" ) {
1148 if ( $nFilesTotal == 0 && $xfer->getStats->{fileCnt} == 0 ) {
1150 # Xfer didn't report any files, but check in the new
1151 # directory just in case.
1153 find(\&CheckForNewFiles, "$Dir/new");
1156 if ( $nFilesTotal > $partialFileCnt
1157 || $xfer->getStats->{fileCnt} > $partialFileCnt ) {
1159 # If the last backup wasn't a partial then
1160 # $partialFileCnt is undefined, so the above
1161 # test is simply $nFilesTotal > 0
1164 if ( $partialFileCnt ) {
1165 $str = "Saving this as a partial backup\n";
1167 $str = sprintf("Saving this as a partial backup, replacing the"
1168 . " prior one (got %d and %d files versus %d)\n",
1169 $nFilesTotal, $xfer->getStats->{fileCnt}, $partialFileCnt);
1172 $str = sprintf("Not saving this as a partial backup since it has fewer"
1173 . " files than the prior one (got %d and %d files versus %d)\n",
1174 $nFilesTotal, $xfer->getStats->{fileCnt}, $partialFileCnt);
1176 $XferLOG->write(\$str);
1180 # Don't keep partials if they are disabled
1182 $keepPartial = 0 if ( $Conf{PartialAgeMax} < 0 );
1184 if ( !$keepPartial ) {
1186 # No point in saving this dump; get rid of eveything.
1189 unlink("$Dir/timeStamp.level0") if ( -f "$Dir/timeStamp.level0" );
1190 unlink("$Dir/SmbLOG.bad") if ( -f "$Dir/SmbLOG.bad" );
1191 unlink("$Dir/SmbLOG.bad$fileExt") if ( -f "$Dir/SmbLOG.bad$fileExt" );
1192 unlink("$Dir/XferLOG.bad") if ( -f "$Dir/XferLOG.bad" );
1193 unlink("$Dir/XferLOG.bad$fileExt") if ( -f "$Dir/XferLOG.bad$fileExt" );
1194 unlink("$Dir/NewFileList") if ( -f "$Dir/NewFileList" );
1195 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.bad$fileExt");
1196 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
1197 print("dump failed: $stat{hostError}\n");
1199 print("link $clientURI\n") if ( $needLink );
1203 # Ok, now we should save this as a partial dump
1206 my $newNum = BackupSave();
1207 print("dump failed: $stat{hostError}\n");
1208 print("link $clientURI\n") if ( $needLink );
1209 print(LOG $bpc->timeStamp, "Saved partial dump $newNum\n");
1214 # Decide which old backups should be expired by moving them
1220 my($Dir) = "$TopDir/pc/$client";
1221 my(@Backups) = $bpc->BackupInfoRead($client);
1222 my($cntFull, $cntIncr, $firstFull, $firstIncr, $oldestIncr,
1223 $oldestFull, $changes);
1225 if ( $Conf{FullKeepCnt} <= 0 ) {
1226 print(LOG $bpc->timeStamp,
1227 "Invalid value for \$Conf{FullKeepCnt}=$Conf{FullKeepCnt}\n");
1229 "Invalid value for \$Conf{FullKeepCnt}=$Conf{FullKeepCnt}\n")
1234 $cntFull = $cntIncr = 0;
1235 $oldestIncr = $oldestFull = 0;
1236 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
1237 if ( $Backups[$i]{type} eq "full" ) {
1238 $firstFull = $i if ( $cntFull == 0 );
1240 } elsif ( $Backups[$i]{type} eq "incr" ) {
1241 $firstIncr = $i if ( $cntIncr == 0 );
1245 $oldestIncr = (time - $Backups[$firstIncr]{startTime}) / (24 * 3600)
1246 if ( $cntIncr > 0 );
1247 $oldestFull = (time - $Backups[$firstFull]{startTime}) / (24 * 3600)
1248 if ( $cntFull > 0 );
1251 # With multi-level incrementals, several of the following
1252 # incrementals might depend upon this one, so we have to
1253 # delete all of the them. Figure out if that is possible
1254 # by counting the number of consecutive incrementals that
1255 # are unfilled and have a level higher than this one.
1258 my $earliestIncr = $oldestIncr;
1260 for ( my $i = $firstIncr + 1 ; $i < @Backups ; $i++ ) {
1261 last if ( $Backups[$i]{level} <= $Backups[$firstIncr]{level}
1262 || !$Backups[$i]{noFill} );
1264 $earliestIncr = (time - $Backups[$i]{startTime}) / (24 * 3600);
1267 if ( $cntIncr >= $Conf{IncrKeepCnt} + $cntIncrDel
1268 || ($cntIncr >= $Conf{IncrKeepCntMin} + $cntIncrDel
1269 && $earliestIncr > $Conf{IncrAgeMax}) ) {
1271 # Only delete an incr backup if the Conf settings are satisfied
1272 # for all $cntIncrDel incrementals. Since BackupRemove() does
1273 # a splice() we need to do the deletes in the reverse order.
1275 for ( my $i = $firstIncr + $cntIncrDel - 1 ;
1276 $i >= $firstIncr ; $i-- ) {
1277 print(LOG $bpc->timeStamp,
1278 "removing incr backup $Backups[$i]{num}\n");
1279 BackupRemove($client, \@Backups, $i);
1286 # Delete any old full backups, according to $Conf{FullKeepCntMin}
1287 # and $Conf{FullAgeMax}.
1289 # First make sure that $Conf{FullAgeMax} is at least bigger
1290 # than $Conf{FullPeriod} * $Conf{FullKeepCnt}, including
1291 # the exponential array case.
1293 my $fullKeepCnt = $Conf{FullKeepCnt};
1294 $fullKeepCnt = [$fullKeepCnt] if ( ref($fullKeepCnt) ne "ARRAY" );
1296 my $fullPeriod = int(0.5 + $Conf{FullPeriod});
1297 $fullPeriod = 7 if ( $fullPeriod <= 0 );
1298 for ( my $i = 0 ; $i < @$fullKeepCnt ; $i++ ) {
1299 $fullAgeMax += $fullKeepCnt->[$i] * $fullPeriod;
1302 $fullAgeMax += $fullPeriod; # add some buffer
1304 if ( $cntFull > $Conf{FullKeepCntMin}
1305 && $oldestFull > $Conf{FullAgeMax}
1306 && $oldestFull > $fullAgeMax
1307 && $Conf{FullKeepCntMin} > 0
1308 && $Conf{FullAgeMax} > 0
1309 && (@Backups <= $firstFull + 1
1310 || !$Backups[$firstFull + 1]{noFill}) ) {
1312 # Only delete a full backup if the Conf settings are satisfied.
1313 # We also must make sure that either this backup is the most
1314 # recent one, or the next backup is filled.
1315 # (We can't deleted a full backup if the next backup is not
1318 print(LOG $bpc->timeStamp,
1319 "removing old full backup $Backups[$firstFull]{num}\n");
1320 BackupRemove($client, \@Backups, $firstFull);
1326 # Do new-style full backup expiry, which includes the the case
1327 # where $Conf{FullKeepCnt} is an array.
1329 last if ( !BackupFullExpire($client, \@Backups) );
1332 $bpc->BackupInfoWrite($client, @Backups) if ( $changes );
1336 # Handle full backup expiry, using exponential periods.
1338 sub BackupFullExpire
1340 my($client, $Backups) = @_;
1342 my $fullPeriod = $Conf{FullPeriod};
1343 my $origFullPeriod = $fullPeriod;
1344 my $fullKeepCnt = $Conf{FullKeepCnt};
1345 my $fullKeepIdx = 0;
1346 my(@delete, @fullList);
1349 # Don't delete anything if $Conf{FullPeriod} or $Conf{FullKeepCnt} are
1350 # not defined - possibly a corrupted config.pl file.
1352 return if ( !defined($Conf{FullPeriod}) || !defined($Conf{FullKeepCnt}) );
1355 # If regular backups are still disabled with $Conf{FullPeriod} < 0,
1356 # we still expire backups based on a typical FullPeriod value - weekly.
1358 $fullPeriod = 7 if ( $fullPeriod <= 0 );
1360 $fullKeepCnt = [$fullKeepCnt] if ( ref($fullKeepCnt) ne "ARRAY" );
1362 for ( my $i = 0 ; $i < @$Backups ; $i++ ) {
1363 next if ( $Backups->[$i]{type} ne "full" );
1364 push(@fullList, $i);
1366 for ( my $k = @fullList - 1 ; $k >= 0 ; $k-- ) {
1367 my $i = $fullList[$k];
1368 my $prevFull = $fullList[$k-1] if ( $k > 0 );
1370 # Don't delete any full that is followed by an unfilled backup,
1371 # since it is needed for restore.
1373 my $noDelete = $i + 1 < @$Backups ? $Backups->[$i+1]{noFill} : 0;
1376 ($fullKeepIdx >= @$fullKeepCnt
1379 && $Backups->[$i]{startTime} - $Backups->[$prevFull]{startTime}
1380 < ($fullPeriod - $origFullPeriod / 2) * 24 * 3600
1384 # Delete the full backup
1386 #print("Deleting backup $i ($prevFull)\n");
1387 unshift(@delete, $i);
1390 while ( $fullKeepIdx < @$fullKeepCnt
1391 && $fullCnt >= $fullKeepCnt->[$fullKeepIdx] ) {
1394 $fullPeriod = 2 * $fullPeriod;
1399 # Now actually delete the backups
1401 for ( my $i = @delete - 1 ; $i >= 0 ; $i-- ) {
1402 print(LOG $bpc->timeStamp,
1403 "removing full backup $Backups->[$delete[$i]]{num}\n");
1404 BackupRemove($client, $Backups, $delete[$i]);
1410 # Removes any partial backups
1412 sub BackupPartialRemove
1414 my($client, $Backups) = @_;
1416 for ( my $i = @$Backups - 1 ; $i >= 0 ; $i-- ) {
1417 next if ( $Backups->[$i]{type} ne "partial" );
1418 BackupRemove($client, $Backups, $i);
1424 my @Backups = $bpc->BackupInfoRead($client);
1429 # Since we got a good backup we should remove any partial dumps
1430 # (the new backup might also be a partial, but that's ok).
1432 BackupPartialRemove($client, \@Backups);
1433 $needLink = 1 if ( -f "$Dir/NewFileList" );
1436 # Number the new backup
1438 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
1439 $num = $Backups[$i]{num} if ( $num < $Backups[$i]{num} );
1442 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/$num") if ( -d "$Dir/$num" );
1443 if ( !rename("$Dir/new", "$Dir/$num") ) {
1444 print(LOG $bpc->timeStamp, "Rename $Dir/new -> $Dir/$num failed\n");
1450 # Add the new backup information to the backup file
1453 $Backups[$i]{num} = $num;
1454 $Backups[$i]{type} = $type;
1455 $Backups[$i]{startTime} = $startTime;
1456 $Backups[$i]{endTime} = $endTime;
1457 $Backups[$i]{size} = $sizeTotal;
1458 $Backups[$i]{nFiles} = $nFilesTotal;
1459 $Backups[$i]{xferErrs} = $stat{xferErrCnt} || 0;
1460 $Backups[$i]{xferBadFile} = $stat{xferBadFileCnt} || 0;
1461 $Backups[$i]{xferBadShare} = $stat{xferBadShareCnt} || 0;
1462 $Backups[$i]{nFilesExist} = $nFilesExist;
1463 $Backups[$i]{sizeExist} = $sizeExist;
1464 $Backups[$i]{sizeExistComp} = $sizeExistComp;
1465 $Backups[$i]{tarErrs} = $tarErrs;
1466 $Backups[$i]{compress} = $Conf{CompressLevel};
1467 $Backups[$i]{noFill} = $type eq "incr" ? 1 : 0;
1468 $Backups[$i]{level} = $incrLevel;
1469 $Backups[$i]{mangle} = 1; # name mangling always on for v1.04+
1470 $Backups[$i]{xferMethod} = $Conf{XferMethod};
1471 $Backups[$i]{charset} = $Conf{ClientCharset};
1472 $Backups[$i]{version} = $bpc->Version();
1474 # Save the main backups file
1476 $bpc->BackupInfoWrite($client, @Backups);
1478 # Save just this backup's info in case the main backups file
1481 BackupPC::Storage->backupInfoWrite($Dir, $Backups[$i]{num},
1484 unlink("$Dir/timeStamp.level0") if ( -f "$Dir/timeStamp.level0" );
1485 foreach my $ext ( qw(bad bad.z) ) {
1486 next if ( !-f "$Dir/XferLOG.$ext" );
1487 unlink("$Dir/XferLOG.$ext.old") if ( -f "$Dir/XferLOG.$ext" );
1488 rename("$Dir/XferLOG.$ext", "$Dir/XferLOG.$ext.old");
1492 # Now remove the bad files, replacing them if possible with links to
1495 foreach my $f ( $xfer->getBadFiles ) {
1497 my $shareM = $bpc->fileNameEltMangle($f->{share});
1498 my $fileM = $bpc->fileNameMangle($f->{file});
1499 unlink("$Dir/$num/$shareM/$fileM");
1500 for ( $j = $i - 1 ; $j >= 0 ; $j-- ) {
1502 if ( $Backups[$j]{mangle} ) {
1503 $file = "$shareM/$fileM";
1505 $file = "$f->{share}/$f->{file}";
1507 next if ( !-f "$Dir/$Backups[$j]{num}/$file" );
1509 my($exists, $digest, $origSize, $outSize, $errs)
1510 = BackupPC::PoolWrite::LinkOrCopy(
1512 "$Dir/$Backups[$j]{num}/$file",
1513 $Backups[$j]{compress},
1514 "$Dir/$num/$shareM/$fileM",
1515 $Conf{CompressLevel});
1518 # the hard link failed, most likely because the target
1519 # file has too many links. We have copied the file
1520 # instead, so add this to the new file list.
1522 if ( !defined($newFilesFH) ) {
1523 my $str = "Appending to NewFileList for $shareM/$fileM\n";
1524 $XferLOG->write(\$str);
1525 open($newFilesFH, ">>", "$TopDir/pc/$client/NewFileList")
1526 || die("can't open $TopDir/pc/$client/NewFileList");
1527 binmode($newFilesFH);
1529 if ( -f "$Dir/$num/$shareM/$fileM" ) {
1530 print($newFilesFH "$digest $origSize $shareM/$fileM\n");
1532 my $str = "Unable to link/copy $num/$f->{share}/$f->{file}"
1533 . " to $Backups[$j]{num}/$f->{share}/$f->{file}\n";
1534 $XferLOG->write(\$str);
1537 my $str = "Bad file $num/$f->{share}/$f->{file} replaced"
1539 . " $Backups[$j]{num}/$f->{share}/$f->{file}\n";
1540 $XferLOG->write(\$str);
1545 my $str = "Removed bad file $num/$f->{share}/$f->{file}"
1546 . " (no older copy to link to)\n";
1547 $XferLOG->write(\$str);
1550 close($newFilesFH) if ( defined($newFilesFH) );
1552 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.$num$fileExt");
1553 rename("$Dir/NewFileList", "$Dir/NewFileList.$num");
1559 # Removes a specific backup
1563 my($client, $Backups, $idx) = @_;
1564 my($Dir) = "$TopDir/pc/$client";
1566 if ( $Backups->[$idx]{num} eq "" ) {
1567 print("BackupRemove: ignoring empty backup number for idx $idx\n");
1571 $bpc->RmTreeDefer("$TopDir/trash",
1572 "$Dir/$Backups->[$idx]{num}");
1573 unlink("$Dir/SmbLOG.$Backups->[$idx]{num}")
1574 if ( -f "$Dir/SmbLOG.$Backups->[$idx]{num}" );
1575 unlink("$Dir/SmbLOG.$Backups->[$idx]{num}.z")
1576 if ( -f "$Dir/SmbLOG.$Backups->[$idx]{num}.z" );
1577 unlink("$Dir/XferLOG.$Backups->[$idx]{num}")
1578 if ( -f "$Dir/XferLOG.$Backups->[$idx]{num}" );
1579 unlink("$Dir/XferLOG.$Backups->[$idx]{num}.z")
1580 if ( -f "$Dir/XferLOG.$Backups->[$idx]{num}.z" );
1581 splice(@{$Backups}, $idx, 1);
1584 sub CorrectHostCheck
1586 my($hostIP, $host) = @_;
1587 return if ( $hostIP eq $host && !$Conf{FixedIPNetBiosNameCheck}
1588 || $Conf{NmbLookupCmd} eq "" );
1589 my($netBiosHost, $netBiosUser) = $bpc->NetBiosInfoGet($hostIP);
1590 return "host $host has mismatching netbios name $netBiosHost"
1591 if ( lc($netBiosHost) ne lc(substr($host, 0, 15)) );
1596 # The Xfer method might tell us from time to time about processes
1597 # it forks. We tell BackupPC about this (for status displays) and
1598 # keep track of the pids in case we cancel the backup
1603 @xferPid = grep(/./, @xferPid);
1604 return if ( !@xferPid && $tarPid < 0 );
1605 my @pids = @xferPid;
1606 push(@pids, $tarPid) if ( $tarPid > 0 );
1607 my $str = join(",", @pids);
1608 $XferLOG->write(\"Xfer PIDs are now $str\n") if ( defined($XferLOG) );
1609 print("xferPids $str\n");
1613 # The Xfer method might tell us from time to time about progress
1614 # in the backup or restore
1616 sub completionPercent
1620 $percent = 100 if ( $percent > 100 );
1621 $percent = 0 if ( $percent < 0 );
1622 if ( !defined($completionPercent)
1623 || int($completionPercent + 0.5) != int($percent) ) {
1624 printf("completionPercent %.0f\n", $percent);
1626 $completionPercent = $percent;
1630 # Run an optional pre- or post-dump command
1634 my($cmdType, $sharename) = @_;
1636 return if ( !defined($Conf{$cmdType}) );
1642 user => $Hosts->{$client}{user},
1643 moreUsers => $Hosts->{$client}{moreUsers},
1644 share => $ShareNames->[0],
1645 shares => $ShareNames,
1646 XferMethod => $Conf{XferMethod},
1647 sshPath => $Conf{SshPath},
1649 XferLOG => $XferLOG,
1651 xferOK => $stat{xferOK} || 0,
1652 hostError => $stat{hostError},
1654 cmdType => $cmdType,
1657 if ($cmdType eq 'DumpPreShareCmd' || $cmdType eq 'DumpPostShareCmd') {
1658 $vars->{share} = $sharename;
1661 my $cmd = $bpc->cmdVarSubstitute($Conf{$cmdType}, $vars);
1662 $XferLOG->write(\"Executing $cmdType: @$cmd\n");
1664 # Run the user's command, dumping the stdout/stderr into the
1665 # Xfer log file. Also supply the optional $vars and %Conf in
1666 # case the command is really perl code instead of a shell
1669 $bpc->cmdSystemOrEval($cmd,
1671 $XferLOG->write(\$_[0]);
1672 print(LOG $bpc->timeStamp, "Output from $cmdType: ", $_[0]);