2 #============================================================= -*-perl-*-
4 # BackupPC_dump: Dump a single client.
8 # Usage: BackupPC_dump [-i] [-f] [-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 # -d Host is a DHCP pool address, and the client argument
18 # just an IP address. We lookup the NetBios name from
21 # -e Just do an dump expiry check for the client. Don't do anything
22 # else. This is used periodically by BackupPC to make sure that
23 # dhcp hosts have correctly expired old backups. Without this,
24 # dhcp hosts that are no longer on the network will not expire
27 # -v verbose. for manual usage: prints failure reasons in more detail.
29 # BackupPC_dump is run periodically by BackupPC to backup $client.
30 # The file $TopDir/pc/$client/backups is read to decide whether a
31 # full or incremental backup needs to be run. If no backup is
32 # scheduled, or a ping to $client fails, then BackupPC_dump quits.
34 # The backup is done using the selected XferMethod (smb, tar, rsync,
35 # backuppcd etc), extracting the dump into $TopDir/pc/$client/new.
36 # The xfer output is put into $TopDir/pc/$client/XferLOG.
38 # If the dump succeeds (based on parsing the output of the XferMethod):
39 # - $TopDir/pc/$client/new is renamed to $TopDir/pc/$client/nnn, where
40 # nnn is the next sequential dump number.
41 # - $TopDir/pc/$client/XferLOG is renamed to $TopDir/pc/$client/XferLOG.nnn.
42 # - $TopDir/pc/$client/backups is updated.
45 # - $TopDir/pc/$client/new is moved to $TopDir/trash for later removal.
46 # - $TopDir/pc/$client/XferLOG is renamed to $TopDir/pc/$client/XferLOG.bad
49 # BackupPC_dump communicates to BackupPC via printing to STDOUT.
52 # Craig Barratt <cbarratt@users.sourceforge.net>
55 # Copyright (C) 2001-2003 Craig Barratt
57 # This program is free software; you can redistribute it and/or modify
58 # it under the terms of the GNU General Public License as published by
59 # the Free Software Foundation; either version 2 of the License, or
60 # (at your option) any later version.
62 # This program is distributed in the hope that it will be useful,
63 # but WITHOUT ANY WARRANTY; without even the implied warranty of
64 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
65 # GNU General Public License for more details.
67 # You should have received a copy of the GNU General Public License
68 # along with this program; if not, write to the Free Software
69 # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
71 #========================================================================
73 # Version 3.1.0beta0, released 3 Sep 2007.
75 # See http://backuppc.sourceforge.net.
77 #========================================================================
81 use lib "/usr/local/BackupPC/lib";
83 use BackupPC::FileZIO;
84 use BackupPC::Storage;
85 use BackupPC::Xfer::Smb;
86 use BackupPC::Xfer::Tar;
87 use BackupPC::Xfer::Rsync;
88 use BackupPC::Xfer::BackupPCd;
95 ###########################################################################
97 ###########################################################################
99 die("BackupPC::Lib->new failed\n") if ( !(my $bpc = BackupPC::Lib->new) );
100 my $TopDir = $bpc->TopDir();
101 my $BinDir = $bpc->BinDir();
102 my %Conf = $bpc->Conf();
111 if ( !getopts("defiv", \%opts) || @ARGV != 1 ) {
112 print("usage: $0 [-d] [-e] [-f] [-i] [-v] <client>\n");
115 if ( $ARGV[0] !~ /^([\w\.\s-]+)$/ ) {
116 print("$0: bad client name '$ARGV[0]'\n");
119 my $client = $1; # BackupPC's client name (might not be real host name)
120 my $hostIP; # this is the IP address
121 my $host; # this is the real host name
123 my($clientURI, $user);
125 $bpc->verbose(1) if ( $opts{v} );
129 # The client name $client is simply a DHCP address. We need to check
130 # if there is any machine at this address, and if so, get the actual
131 # host name via NetBios using nmblookup.
134 if ( $bpc->CheckHostAlive($hostIP) < 0 ) {
135 print(STDERR "Exiting because CheckHostAlive($hostIP) failed\n")
139 if ( $Conf{NmbLookupCmd} eq "" ) {
140 print(STDERR "Exiting because \$Conf{NmbLookupCmd} is empty\n")
144 ($client, $user) = $bpc->NetBiosInfoGet($hostIP);
145 if ( $client !~ /^([\w\.\s-]+)$/ ) {
146 print(STDERR "Exiting because NetBiosInfoGet($hostIP) returned"
147 . " '$client', an invalid host name\n") if ( $opts{v} );
150 $Hosts = $bpc->HostInfoRead($client);
153 $Hosts = $bpc->HostInfoRead($client);
155 if ( !defined($Hosts->{$client}) ) {
156 print(STDERR "Exiting because host $client does not exist in the"
157 . " hosts file\n") if ( $opts{v} );
161 my $Dir = "$TopDir/pc/$client";
166 # Re-read config file, so we can include the PC-specific config
168 $clientURI = $bpc->uriEsc($client);
169 if ( defined(my $error = $bpc->ConfigRead($client)) ) {
170 print("dump failed: Can't read PC's config file: $error\n");
173 %Conf = $bpc->Conf();
176 # Catch various signals
178 $SIG{INT} = \&catch_signal;
179 $SIG{ALRM} = \&catch_signal;
180 $SIG{TERM} = \&catch_signal;
181 $SIG{PIPE} = \&catch_signal;
182 $SIG{STOP} = \&catch_signal;
183 $SIG{TSTP} = \&catch_signal;
184 $SIG{TTIN} = \&catch_signal;
188 # Make sure we eventually timeout if there is no activity from
189 # the data transport program.
191 alarm($Conf{ClientTimeout});
193 mkpath($Dir, 0, 0777) if ( !-d $Dir );
194 if ( !-f "$Dir/LOCK" ) {
195 open(LOCK, ">", "$Dir/LOCK") && close(LOCK);
198 my($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
199 my $logPath = sprintf("$Dir/LOG.%02d%04d", $mon + 1, $year + 1900);
201 if ( !-f $logPath ) {
203 # Compress and prune old log files
205 my $lastLog = $Conf{MaxOldPerPCLogFiles} - 1;
206 foreach my $file ( $bpc->sortedPCLogFiles($client) ) {
207 if ( $lastLog <= 0 ) {
212 next if ( $file =~ /\.z$/ || !$Conf{CompressLevel} );
213 BackupPC::FileZIO->compressCopy($file,
216 $Conf{CompressLevel}, 1);
220 open(LOG, ">>", $logPath);
221 select(LOG); $| = 1; select(STDOUT);
224 # For the -e option we just expire backups and quit
227 BackupExpire($client);
232 # For archive hosts we don't bother any further
234 if ($Conf{XferMethod} eq "archive" ) {
235 print(STDERR "Exiting because the XferMethod is set to archive\n")
242 # In the non-DHCP case, make sure the host can be looked up
243 # via NS, or otherwise find the IP address via NetBios.
245 if ( $Conf{ClientNameAlias} ne "" ) {
246 $host = $Conf{ClientNameAlias};
250 if ( !defined(gethostbyname($host)) ) {
252 # Ok, NS doesn't know about it. Maybe it is a NetBios name
255 print(STDERR "Name server doesn't know about $host; trying NetBios\n")
257 if ( !defined($hostIP = $bpc->NetBiosHostIPFind($host)) ) {
258 print(LOG $bpc->timeStamp, "Can't find host $host via netbios\n");
259 print("host not found\n");
267 ###########################################################################
268 # Figure out what to do and do it
269 ###########################################################################
272 # See if we should skip this host during a certain range
275 my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort});
277 print("Can't connect to server ($err)\n");
278 print(LOG $bpc->timeStamp, "Can't connect to server ($err)\n");
281 my $reply = $bpc->ServerMesg("status host($clientURI)");
282 $reply = $1 if ( $reply =~ /(.*)/s );
285 $bpc->ServerDisconnect();
288 # For DHCP tell BackupPC which host this is
291 if ( $StatusHost{activeJob} ) {
292 # oops, something is already running for this host
293 print(STDERR "Exiting because backup is already running for $client\n")
297 print("DHCP $hostIP $clientURI\n");
300 my($needLink, @Backups, $type);
301 my($incrBaseTime, $incrBaseBkupNum, $incrBaseLevel, $incrLevel);
302 my $lastFullTime = 0;
303 my $lastIncrTime = 0;
310 # Maintain backward compatibility with $Conf{FullPeriod} == -1 or -2
311 # meaning disable backups
313 $Conf{BackupsDisable} = -$Conf{FullPeriod}
314 if ( !$Conf{BackupsDisable} && $Conf{FullPeriod} < 0 );
316 if ( $Conf{BackupsDisable} == 1 && !$opts{f} && !$opts{i}
317 || $Conf{BackupsDisable} == 2 ) {
318 print(STDERR "Exiting because backups are disabled with"
319 . " \$Conf{BackupsDisable} = $Conf{BackupsDisable}\n") if ( $opts{v} );
321 # Tell BackupPC to ignore old failed backups on hosts that
322 # have backups disabled.
324 print("backups disabled\n")
325 if ( defined($StatusHost{errorTime})
326 && $StatusHost{reason} ne "Reason_backup_done"
327 && time - $StatusHost{errorTime} > 4 * 24 * 3600 );
328 NothingToDo($needLink);
331 if ( !$opts{i} && !$opts{f} && $Conf{BlackoutGoodCnt} >= 0
332 && $StatusHost{aliveCnt} >= $Conf{BlackoutGoodCnt} ) {
333 my($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
334 my($currHours) = $hour + $min / 60 + $sec / 3600;
337 foreach my $p ( @{$Conf{BlackoutPeriods}} ) {
339 # Allow blackout to span midnight (specified by hourBegin
340 # being greater than hourEnd)
342 next if ( ref($p->{weekDays}) ne "ARRAY"
343 || !defined($p->{hourBegin})
344 || !defined($p->{hourEnd})
346 if ( $p->{hourBegin} > $p->{hourEnd} ) {
347 $blackout = $p->{hourBegin} <= $currHours
348 || $currHours <= $p->{hourEnd};
349 if ( $currHours <= $p->{hourEnd} ) {
351 # This is after midnight, so decrement the weekday for the
352 # weekday check (eg: Monday 11pm-1am means Monday 2300 to
353 # Tuesday 0100, not Monday 2300-2400 plus Monday 0000-0100).
356 $wday += 7 if ( $wday < 0 );
359 $blackout = $p->{hourBegin} <= $currHours
360 && $currHours <= $p->{hourEnd};
362 if ( $blackout && grep($_ == $wday, @{$p->{weekDays}}) ) {
363 # print(LOG $bpc->timeStamp, "skipping because of blackout"
364 # . " (alive $StatusHost{aliveCnt} times)\n");
365 print(STDERR "Skipping $client because of blackout\n")
367 NothingToDo($needLink);
372 if ( !$opts{i} && !$opts{f} && $StatusHost{backoffTime} > time ) {
373 printf(LOG "%sskipping because of user requested delay (%.1f hours left)\n",
374 $bpc->timeStamp, ($StatusHost{backoffTime} - time) / 3600);
375 NothingToDo($needLink);
379 # Now see if there are any old backups we should delete
381 BackupExpire($client);
383 my(@lastIdxByLevel, $incrCntSinceFull);
386 # Read Backup information, and find times of the most recent full and
387 # incremental backups. Also figure out which backup we will use
388 # as a starting point for an incremental.
390 @Backups = $bpc->BackupInfoRead($client);
391 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
392 $needLink = 1 if ( $Backups[$i]{nFilesNew} eq ""
393 || -f "$Dir/NewFileList.$Backups[$i]{num}" );
394 if ( $Backups[$i]{type} eq "full" ) {
395 $incrCntSinceFull = 0;
396 $lastBkupNum = $Backups[$i]{num};
397 $lastIdxByLevel[0] = $i;
398 if ( $lastFullTime < $Backups[$i]{startTime} ) {
399 $lastFullTime = $Backups[$i]{startTime};
401 } elsif ( $Backups[$i]{type} eq "incr" ) {
403 $lastBkupNum = $Backups[$i]{num};
404 $lastIdxByLevel[$Backups[$i]{level}] = $i;
405 $lastIncrTime = $Backups[$i]{startTime}
406 if ( $lastIncrTime < $Backups[$i]{startTime} );
407 } elsif ( $Backups[$i]{type} eq "partial" ) {
409 $lastPartial = $Backups[$i]{startTime};
410 $partialNum = $Backups[$i]{num};
415 # Decide whether we do nothing, or a full or incremental backup.
419 || (!$opts{i} && (time - $lastFullTime > $Conf{FullPeriod} * 24*3600
420 && time - $lastIncrTime > $Conf{IncrPeriod} * 24*3600)) ) {
423 $incrBaseBkupNum = $lastBkupNum;
424 } elsif ( $opts{i} || (time - $lastIncrTime > $Conf{IncrPeriod} * 24*3600
425 && time - $lastFullTime > $Conf{IncrPeriod} * 24*3600) ) {
428 # For an incremental backup, figure out which level we should
429 # do and the index of the reference backup, which is the most
430 # recent backup at any lower level.
432 @{$Conf{IncrLevels}} = [$Conf{IncrLevels}]
433 unless ref($Conf{IncrLevels}) eq "ARRAY";
434 @{$Conf{IncrLevels}} = [1] if ( !@{$Conf{IncrLevels}} );
435 $incrCntSinceFull = $incrCntSinceFull % @{$Conf{IncrLevels}};
436 $incrLevel = $Conf{IncrLevels}[$incrCntSinceFull];
437 for ( my $i = 0 ; $i < $incrLevel ; $i++ ) {
438 my $idx = $lastIdxByLevel[$i];
439 next if ( !defined($idx) );
440 if ( !defined($incrBaseTime)
441 || $Backups[$idx]{startTime} > $incrBaseTime ) {
442 $incrBaseBkupNum = $Backups[$idx]{num};
443 $incrBaseLevel = $Backups[$idx]{level};
444 $incrBaseTime = $Backups[$idx]{startTime};
448 # Can't find any earlier lower-level backup! Shouldn't
449 # happen - just do full instead
451 if ( !defined($incrBaseBkupNum) || $incrLevel < 1 ) {
453 $incrBaseBkupNum = $lastBkupNum;
456 NothingToDo($needLink);
459 if ( !$bpc->HardlinkTest($Dir, "$TopDir/cpool") ) {
460 print(LOG $bpc->timeStamp, "Can't create a test hardlink between a file"
461 . " in $Dir and $TopDir/cpool. Either these are different"
462 . " file systems, or this file system doesn't support hardlinks,"
463 . " or these directories don't exist, or there is a permissions"
464 . " problem, or the file system is out of inodes or full. Use"
465 . " df, df -i, and ls -ld to check each of these possibilities."
467 print("test hardlink between $Dir and $TopDir/cpool failed\n");
468 print("link $clientURI\n") if ( $needLink );
473 # Check if $host is alive
475 my $delay = $bpc->CheckHostAlive($hostIP);
477 print(LOG $bpc->timeStamp, "no ping response\n");
478 print("no ping response\n");
479 print("link $clientURI\n") if ( $needLink );
481 } elsif ( $delay > $Conf{PingMaxMsec} ) {
482 printf(LOG "%sping too slow: %.4gmsec\n", $bpc->timeStamp, $delay);
483 printf("ping too slow: %.4gmsec (threshold is %gmsec)\n",
484 $delay, $Conf{PingMaxMsec});
485 print("link $clientURI\n") if ( $needLink );
490 # Make sure it is really the machine we expect (only for fixed addresses,
491 # since we got the DHCP address above).
493 if ( !$opts{d} && (my $errMsg = CorrectHostCheck($hostIP, $host)) ) {
494 print(LOG $bpc->timeStamp, "dump failed: $errMsg\n");
495 print("dump failed: $errMsg\n");
497 } elsif ( $opts{d} ) {
498 print(LOG $bpc->timeStamp, "$host is dhcp $hostIP, user is $user\n");
502 # Get a clean directory $Dir/new
504 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
507 # Setup file extension for compression and open XferLOG output file
509 if ( $Conf{CompressLevel} && !BackupPC::FileZIO->compOk ) {
510 print(LOG $bpc->timeStamp, "dump failed: can't find Compress::Zlib\n");
511 print("dump failed: can't find Compress::Zlib\n");
514 my $fileExt = $Conf{CompressLevel} > 0 ? ".z" : "";
515 my $XferLOG = BackupPC::FileZIO->open("$Dir/XferLOG$fileExt", 1,
516 $Conf{CompressLevel});
517 if ( !defined($XferLOG) ) {
518 print(LOG $bpc->timeStamp, "dump failed: unable to open/create"
519 . " $Dir/XferLOG$fileExt\n");
520 print("dump failed: unable to open/create $Dir/XferLOG$fileExt\n");
525 # Ignore the partial dump in the case of an incremental
526 # or when the partial is too old. A partial is a partial full.
528 if ( $type ne "full" || time - $lastPartial > $Conf{PartialAgeMax} * 24*3600 ) {
534 # If this is a partial, copy the old XferLOG file
537 my($compress, $fileName);
538 if ( -f "$Dir/XferLOG.$partialNum.z" ) {
539 $fileName = "$Dir/XferLOG.$partialNum.z";
541 } elsif ( -f "$Dir/XferLOG.$partialNum" ) {
542 $fileName = "$Dir/XferLOG.$partialNum";
545 if ( my $oldLOG = BackupPC::FileZIO->open($fileName, 0, $compress) ) {
547 while ( $oldLOG->read(\$data, 65536) > 0 ) {
548 $XferLOG->write(\$data);
554 $XferLOG->writeTeeStderr(1) if ( $opts{v} );
555 unlink("$Dir/NewFileList") if ( -f "$Dir/NewFileList" );
557 my $startTime = time();
561 my $sizeExistComp = 0;
564 my($logMsg, %stat, $xfer, $ShareNames, $noFilesErr);
567 if ( $Conf{XferMethod} eq "tar" ) {
568 $ShareNames = $Conf{TarShareName};
569 } elsif ( $Conf{XferMethod} eq "rsync" || $Conf{XferMethod} eq "rsyncd" ) {
570 $ShareNames = $Conf{RsyncShareName};
571 } elsif ( $Conf{XferMethod} eq "backuppcd" ) {
572 $ShareNames = $Conf{BackupPCdShareName};
574 $ShareNames = $Conf{SmbShareName};
577 $ShareNames = [ $ShareNames ] unless ref($ShareNames) eq "ARRAY";
580 # Run an optional pre-dump command
582 UserCommandRun("DumpPreUserCmd");
583 if ( $? && $Conf{UserCmdCheckStatus} ) {
584 print(LOG $bpc->timeStamp,
585 "DumpPreUserCmd returned error status $?... exiting\n");
586 print("dump failed: DumpPreUserCmd returned error status $?\n");
592 # Now backup each of the shares
594 for my $shareName ( @$ShareNames ) {
598 # Convert $shareName to utf8 octets
600 $shareName = encode("utf8", $shareName);
601 $stat{xferOK} = $stat{hostAbort} = undef;
602 $stat{hostError} = $stat{lastOutputLine} = undef;
603 if ( -d "$Dir/new/$shareName" ) {
604 print(LOG $bpc->timeStamp,
605 "unexpected repeated share name $shareName skipped\n");
609 UserCommandRun("DumpPreShareCmd", $shareName);
610 if ( $? && $Conf{UserCmdCheckStatus} ) {
611 print(LOG $bpc->timeStamp,
612 "DumpPreShareCmd returned error status $?... exiting\n");
613 print("dump failed: DumpPreShareCmd returned error status $?\n");
614 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
618 if ( $Conf{XferMethod} eq "tar" ) {
620 # Use tar (eg: tar/ssh) as the transport program.
622 $xfer = BackupPC::Xfer::Tar->new($bpc);
623 } elsif ( $Conf{XferMethod} eq "rsync" || $Conf{XferMethod} eq "rsyncd" ) {
625 # Use rsync as the transport program.
627 if ( !defined($xfer = BackupPC::Xfer::Rsync->new($bpc)) ) {
628 my $errStr = BackupPC::Xfer::Rsync::errStr;
629 print(LOG $bpc->timeStamp, "dump failed: $errStr\n");
630 print("dump failed: $errStr\n");
631 UserCommandRun("DumpPostShareCmd", $shareName) if ( $NeedPostCmd );
632 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
635 } elsif ( $Conf{XferMethod} eq "backuppcd" ) {
637 # Use backuppcd as the transport program.
639 if ( !defined($xfer = BackupPC::Xfer::BackupPCd->new($bpc)) ) {
640 my $errStr = BackupPC::Xfer::BackupPCd::errStr;
641 print(LOG $bpc->timeStamp, "dump failed: $errStr\n");
642 print("dump failed: $errStr\n");
643 UserCommandRun("DumpPostShareCmd", $shareName) if ( $NeedPostCmd );
644 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
649 # Default is to use smbclient (smb) as the transport program.
651 $xfer = BackupPC::Xfer::Smb->new($bpc);
654 my $useTar = $xfer->useTar;
658 # This xfer method outputs a tar format file, so we start a
659 # BackupPC_tarExtract to extract the data.
661 # Create a socketpair to connect the Xfer method to BackupPC_tarExtract
662 # WH is the write handle for writing, provided to the transport
663 # program, and RH is the other end of the socket for reading,
664 # provided to BackupPC_tarExtract.
666 if ( socketpair(RH, WH, AF_UNIX, SOCK_STREAM, PF_UNSPEC) ) {
667 shutdown(RH, 1); # no writing to this socket
668 shutdown(WH, 0); # no reading from this socket
669 setsockopt(RH, SOL_SOCKET, SO_RCVBUF, 8 * 65536);
670 setsockopt(WH, SOL_SOCKET, SO_SNDBUF, 8 * 65536);
673 # Default to pipe() if socketpair() doesn't work.
679 # fork a child for BackupPC_tarExtract. TAR is a file handle
680 # on which we (the parent) read the stdout & stderr from
681 # BackupPC_tarExtract.
683 if ( !defined($tarPid = open(TAR, "-|")) ) {
684 print(LOG $bpc->timeStamp, "can't fork to run tar\n");
685 print("can't fork to run tar\n");
693 # This is the tar child. Close the write end of the pipe,
694 # clone STDERR to STDOUT, clone STDIN from RH, and then
695 # exec BackupPC_tarExtract.
700 open(STDERR, ">&STDOUT");
704 exec("$BinDir/BackupPC_tarExtract", $client, $shareName,
705 $Conf{CompressLevel});
706 print(LOG $bpc->timeStamp,
707 "can't exec $BinDir/BackupPC_tarExtract\n");
710 } elsif ( !defined($newFilesFH) ) {
712 # We need to create the NewFileList output file
715 open(NEW_FILES, ">", "$TopDir/pc/$client/NewFileList")
716 || die("can't open $TopDir/pc/$client/NewFileList");
717 $newFilesFH = *NEW_FILES;
722 # Run the transport program
728 shareName => $shareName,
732 newFilesFH => $newFilesFH,
735 incrBaseTime => $incrBaseTime,
736 incrBaseBkupNum => $incrBaseBkupNum,
737 backups => \@Backups,
738 compress => $Conf{CompressLevel},
739 XferMethod => $Conf{XferMethod},
740 logLevel => $Conf{XferLogLevel},
741 pidHandler => \&pidHandler,
742 partialNum => $partialNum,
745 if ( !defined($logMsg = $xfer->start()) ) {
746 print(LOG $bpc->timeStamp, "xfer start failed: ", $xfer->errStr, "\n");
747 print("dump failed: ", $xfer->errStr, "\n");
748 print("link $clientURI\n") if ( $needLink );
750 # kill off the tar process, first nicely then forcefully
753 kill($bpc->sigName2num("INT"), $tarPid);
755 kill($bpc->sigName2num("KILL"), $tarPid);
758 kill($bpc->sigName2num("INT"), @xferPid);
760 kill($bpc->sigName2num("KILL"), @xferPid);
762 UserCommandRun("DumpPostShareCmd", $shareName) if ( $NeedPostCmd );
763 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
767 @xferPid = $xfer->xferPid;
771 # The parent must close both handles on the pipe since the children
772 # are using these handles now.
777 print(LOG $bpc->timeStamp, $logMsg, "\n");
778 $XferLOG->write(\"$logMsg\n");
779 print("started $type dump, share=$shareName\n");
781 pidHandler(@xferPid);
785 # Parse the output of the transfer program and BackupPC_tarExtract
786 # while they run. Since we might be reading from two or more children
789 my($FDread, $tarOut, $mesg);
790 vec($FDread, fileno(TAR), 1) = 1 if ( $useTar );
791 $xfer->setSelectMask(\$FDread);
795 last if ( $FDread =~ /^\0*$/ );
796 select(my $rout = $FDread, undef, $ein, undef);
798 if ( vec($rout, fileno(TAR), 1) ) {
799 if ( sysread(TAR, $mesg, 8192) <= 0 ) {
800 vec($FDread, fileno(TAR), 1) = 0;
806 while ( $tarOut =~ /(.*?)[\n\r]+(.*)/s ) {
810 $XferLOG->write(\"$_\n");
812 $XferLOG->write(\"tarExtract: $_\n");
814 if ( /^BackupPC_tarExtact aborting \((.*)\)/ ) {
815 $stat{hostError} = $1;
817 if ( /^Done: (\d+) errors, (\d+) filesExist, (\d+) sizeExist, (\d+) sizeExistComp, (\d+) filesTotal, (\d+) sizeTotal/ ) {
821 $sizeExistComp += $4;
827 last if ( !$xfer->readOutput(\$FDread, $rout) );
828 while ( my $str = $xfer->logMsgGet ) {
829 print(LOG $bpc->timeStamp, "xfer: $str\n");
831 if ( $xfer->getStats->{fileCnt} == 1 ) {
833 # Make sure it is still the machine we expect. We do this while
834 # the transfer is running to avoid a potential race condition if
835 # the ip address was reassigned by dhcp just before we started
838 if ( my $errMsg = CorrectHostCheck($hostIP, $host) ) {
839 $stat{hostError} = $errMsg if ( $stat{hostError} eq "" );
846 # otherwise the xfer module does everything for us
848 my @results = $xfer->run();
849 $tarErrs += $results[0];
850 $nFilesExist += $results[1];
851 $sizeExist += $results[2];
852 $sizeExistComp += $results[3];
853 $nFilesTotal += $results[4];
854 $sizeTotal += $results[5];
858 # Merge the xfer status (need to accumulate counts)
860 my $newStat = $xfer->getStats;
861 if ( $newStat->{fileCnt} == 0 ) {
862 $noFilesErr ||= "No files dumped for share $shareName";
864 foreach my $k ( (keys(%stat), keys(%$newStat)) ) {
865 next if ( !defined($newStat->{$k}) );
866 if ( $k =~ /Cnt$/ ) {
867 $stat{$k} += $newStat->{$k};
868 delete($newStat->{$k});
871 if ( !defined($stat{$k}) ) {
872 $stat{$k} = $newStat->{$k};
873 delete($newStat->{$k});
878 if ( $NeedPostCmd ) {
879 UserCommandRun("DumpPostShareCmd", $shareName);
880 if ( $? && $Conf{UserCmdCheckStatus} ) {
881 print(LOG $bpc->timeStamp,
882 "DumpPostShareCmd returned error status $?... exiting\n");
883 $stat{hostError} = "DumpPostShareCmd returned error status $?";
887 $stat{xferOK} = 0 if ( $stat{hostError} || $stat{hostAbort} );
888 if ( !$stat{xferOK} ) {
890 # kill off the transfer program, first nicely then forcefully
893 kill($bpc->sigName2num("INT"), @xferPid);
895 kill($bpc->sigName2num("KILL"), @xferPid);
898 # kill off the tar process, first nicely then forcefully
901 kill($bpc->sigName2num("INT"), $tarPid);
903 kill($bpc->sigName2num("KILL"), $tarPid);
906 # don't do any more shares on this host
913 # If this is a full, and any share had zero files then consider the dump bad
915 if ( $type eq "full" && $stat{hostError} eq ""
916 && length($noFilesErr) && $Conf{BackupZeroFilesIsFatal} ) {
917 $stat{hostError} = $noFilesErr;
921 $stat{xferOK} = 0 if ( $Abort );
924 # If there is no "new" directory then the backup is bad
926 if ( $stat{xferOK} && !-d "$Dir/new" ) {
927 $stat{hostError} = "No backup directory $Dir/new"
928 if ( $stat{hostError} eq "" );
933 # Do one last check to make sure it is still the machine we expect.
935 if ( $stat{xferOK} && (my $errMsg = CorrectHostCheck($hostIP, $host)) ) {
936 $stat{hostError} = $errMsg;
940 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
941 if ( $? && $Conf{UserCmdCheckStatus} ) {
942 print(LOG $bpc->timeStamp,
943 "DumpPostUserCmd returned error status $?... exiting\n");
944 $stat{hostError} = "DumpPostUserCmd returned error status $?";
947 close($newFilesFH) if ( defined($newFilesFH) );
949 my $endTime = time();
952 # If the dump failed, clean up
954 if ( !$stat{xferOK} ) {
955 $stat{hostError} = $stat{lastOutputLine} if ( $stat{hostError} eq "" );
956 if ( $stat{hostError} ) {
957 print(LOG $bpc->timeStamp,
958 "Got fatal error during xfer ($stat{hostError})\n");
959 $XferLOG->write(\"Got fatal error during xfer ($stat{hostError})\n");
963 # wait a short while and see if the system is still alive
966 if ( $bpc->CheckHostAlive($hostIP) < 0 ) {
967 $stat{hostAbort} = 1;
969 if ( $stat{hostAbort} ) {
970 $stat{hostError} = "lost network connection during backup";
972 print(LOG $bpc->timeStamp, "Backup aborted ($stat{hostError})\n");
973 $XferLOG->write(\"Backup aborted ($stat{hostError})\n");
975 $XferLOG->write(\"Backup aborted by user signal\n");
979 # Close the log file and call BackupFailCleanup, which exits.
984 my $newNum = BackupSave();
986 my $otherCount = $stat{xferErrCnt} - $stat{xferBadFileCnt}
987 - $stat{xferBadShareCnt};
988 print(LOG $bpc->timeStamp,
989 "$type backup $newNum complete, $stat{fileCnt} files,"
990 . " $stat{byteCnt} bytes,"
991 . " $stat{xferErrCnt} xferErrs ($stat{xferBadFileCnt} bad files,"
992 . " $stat{xferBadShareCnt} bad shares, $otherCount other)\n");
994 BackupExpire($client);
996 print("$type backup complete\n");
998 ###########################################################################
1000 ###########################################################################
1006 print("nothing to do\n");
1007 print("link $clientURI\n") if ( $needLink );
1013 my $sigName = shift;
1016 # The first time we receive a signal we try to gracefully
1017 # abort the backup. This allows us to keep a partial dump
1018 # with the in-progress file deleted and attribute caches
1019 # flushed to disk etc.
1021 if ( !length($SigName) ) {
1023 if ( $sigName eq "INT" ) {
1024 $reason = "aborted by user (signal=$sigName)";
1026 $reason = "aborted by signal=$sigName";
1030 # Parent logs a message
1032 print(LOG $bpc->timeStamp,
1033 "Aborting backup up after signal $sigName\n");
1036 # Tell xfer to abort, but only if we actually started one
1038 $xfer->abort($reason) if ( defined($xfer) );
1041 # Send ALRMs to BackupPC_tarExtract if we are using it
1043 if ( $tarPid > 0 ) {
1044 kill($bpc->sigName2num("ARLM"), $tarPid);
1048 # Schedule a 20 second timer in case the clean
1049 # abort doesn't complete
1054 # Children ignore anything other than ALRM and INT
1056 if ( $sigName ne "ALRM" && $sigName ne "INT" ) {
1061 # The child also tells xfer to abort
1063 $xfer->abort($reason);
1066 # Schedule a 15 second timer in case the clean
1067 # abort doesn't complete
1071 $SigName = $sigName;
1077 # This is a second signal: time to clean up.
1079 if ( $Pid != $$ && ($sigName eq "ALRM" || $sigName eq "INT") ) {
1081 # Children quit quietly on ALRM or INT
1087 # Ignore other signals in children
1089 return if ( $Pid != $$ );
1091 $SIG{$sigName} = 'IGNORE';
1092 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
1093 $XferLOG->write(\"exiting after signal $sigName\n");
1095 kill($bpc->sigName2num("INT"), @xferPid);
1097 kill($bpc->sigName2num("KILL"), @xferPid);
1099 if ( $tarPid > 0 ) {
1100 kill($bpc->sigName2num("INT"), $tarPid);
1102 kill($bpc->sigName2num("KILL"), $tarPid);
1104 if ( $sigName eq "INT" ) {
1105 $stat{hostError} = "aborted by user (signal=$sigName)";
1107 $stat{hostError} = "received signal=$sigName";
1109 BackupFailCleanup();
1112 sub CheckForNewFiles
1114 if ( -f _ && $File::Find::name !~ /\/fattrib$/ ) {
1118 # No need to check entire tree
1120 $File::Find::prune = 1 if ( $nFilesTotal );
1124 sub BackupFailCleanup
1126 my $fileExt = $Conf{CompressLevel} > 0 ? ".z" : "";
1127 my $keepPartial = 0;
1130 # We keep this backup if it is a full and we actually backed
1133 if ( $type eq "full" ) {
1134 if ( $nFilesTotal == 0 && $xfer->getStats->{fileCnt} == 0 ) {
1136 # Xfer didn't report any files, but check in the new
1137 # directory just in case.
1139 find(\&CheckForNewFiles, "$Dir/new");
1140 $keepPartial = 1 if ( $nFilesTotal );
1143 # Xfer reported some files
1150 # Don't keep partials if they are disabled
1152 $keepPartial = 0 if ( $Conf{PartialAgeMax} < 0 );
1154 if ( !$keepPartial ) {
1156 # No point in saving this dump; get rid of eveything.
1159 unlink("$Dir/timeStamp.level0") if ( -f "$Dir/timeStamp.level0" );
1160 unlink("$Dir/SmbLOG.bad") if ( -f "$Dir/SmbLOG.bad" );
1161 unlink("$Dir/SmbLOG.bad$fileExt") if ( -f "$Dir/SmbLOG.bad$fileExt" );
1162 unlink("$Dir/XferLOG.bad") if ( -f "$Dir/XferLOG.bad" );
1163 unlink("$Dir/XferLOG.bad$fileExt") if ( -f "$Dir/XferLOG.bad$fileExt" );
1164 unlink("$Dir/NewFileList") if ( -f "$Dir/NewFileList" );
1165 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.bad$fileExt");
1166 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
1167 print("dump failed: $stat{hostError}\n");
1169 print("link $clientURI\n") if ( $needLink );
1173 # Ok, now we should save this as a partial dump
1176 my $newNum = BackupSave();
1177 print("dump failed: $stat{hostError}\n");
1178 print("link $clientURI\n") if ( $needLink );
1179 print(LOG $bpc->timeStamp, "Saved partial dump $newNum\n");
1184 # Decide which old backups should be expired by moving them
1190 my($Dir) = "$TopDir/pc/$client";
1191 my(@Backups) = $bpc->BackupInfoRead($client);
1192 my($cntFull, $cntIncr, $firstFull, $firstIncr, $oldestIncr,
1193 $oldestFull, $changes);
1195 if ( $Conf{FullKeepCnt} <= 0 ) {
1196 print(LOG $bpc->timeStamp,
1197 "Invalid value for \$Conf{FullKeepCnt}=$Conf{FullKeepCnt}\n");
1199 "Invalid value for \$Conf{FullKeepCnt}=$Conf{FullKeepCnt}\n")
1204 $cntFull = $cntIncr = 0;
1205 $oldestIncr = $oldestFull = 0;
1206 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
1207 if ( $Backups[$i]{type} eq "full" ) {
1208 $firstFull = $i if ( $cntFull == 0 );
1210 } elsif ( $Backups[$i]{type} eq "incr" ) {
1211 $firstIncr = $i if ( $cntIncr == 0 );
1215 $oldestIncr = (time - $Backups[$firstIncr]{startTime}) / (24 * 3600)
1216 if ( $cntIncr > 0 );
1217 $oldestFull = (time - $Backups[$firstFull]{startTime}) / (24 * 3600)
1218 if ( $cntFull > 0 );
1221 # With multi-level incrementals, several of the following
1222 # incrementals might depend upon this one, so we have to
1223 # delete all of the them. Figure out if that is possible
1224 # by counting the number of consecutive incrementals that
1225 # are unfilled and have a level higher than this one.
1228 my $earliestIncr = $oldestIncr;
1230 for ( my $i = $firstIncr + 1 ; $i < @Backups ; $i++ ) {
1231 last if ( $Backups[$i]{level} <= $Backups[$firstIncr]{level}
1232 || !$Backups[$i]{noFill} );
1234 $earliestIncr = (time - $Backups[$i]{startTime}) / (24 * 3600);
1237 if ( $cntIncr >= $Conf{IncrKeepCnt} + $cntIncrDel
1238 || ($cntIncr >= $Conf{IncrKeepCntMin} + $cntIncrDel
1239 && $earliestIncr > $Conf{IncrAgeMax}) ) {
1241 # Only delete an incr backup if the Conf settings are satisfied
1242 # for all $cntIncrDel incrementals. Since BackupRemove() does
1243 # a splice() we need to do the deletes in the reverse order.
1245 for ( my $i = $firstIncr + $cntIncrDel - 1 ;
1246 $i >= $firstIncr ; $i-- ) {
1247 print(LOG $bpc->timeStamp,
1248 "removing incr backup $Backups[$i]{num}\n");
1249 BackupRemove($client, \@Backups, $i);
1256 # Delete any old full backups, according to $Conf{FullKeepCntMin}
1257 # and $Conf{FullAgeMax}.
1259 # First make sure that $Conf{FullAgeMax} is at least bigger
1260 # than $Conf{FullPeriod} * $Conf{FullKeepCnt}, including
1261 # the exponential array case.
1263 my $fullKeepCnt = $Conf{FullKeepCnt};
1264 $fullKeepCnt = [$fullKeepCnt] if ( ref($fullKeepCnt) ne "ARRAY" );
1266 my $fullPeriod = int(0.5 + $Conf{FullPeriod});
1267 $fullPeriod = 7 if ( $fullPeriod <= 0 );
1268 for ( my $i = 0 ; $i < @$fullKeepCnt ; $i++ ) {
1269 $fullAgeMax += $fullKeepCnt->[$i] * $fullPeriod;
1272 $fullAgeMax += $fullPeriod; # add some buffer
1274 if ( $cntFull > $Conf{FullKeepCntMin}
1275 && $oldestFull > $Conf{FullAgeMax}
1276 && $oldestFull > $fullAgeMax
1277 && $Conf{FullKeepCntMin} > 0
1278 && $Conf{FullAgeMax} > 0
1279 && (@Backups <= $firstFull + 1
1280 || !$Backups[$firstFull + 1]{noFill}) ) {
1282 # Only delete a full backup if the Conf settings are satisfied.
1283 # We also must make sure that either this backup is the most
1284 # recent one, or the next backup is filled.
1285 # (We can't deleted a full backup if the next backup is not
1288 print(LOG $bpc->timeStamp,
1289 "removing old full backup $Backups[$firstFull]{num}\n");
1290 BackupRemove($client, \@Backups, $firstFull);
1296 # Do new-style full backup expiry, which includes the the case
1297 # where $Conf{FullKeepCnt} is an array.
1299 last if ( !BackupFullExpire($client, \@Backups) );
1302 $bpc->BackupInfoWrite($client, @Backups) if ( $changes );
1306 # Handle full backup expiry, using exponential periods.
1308 sub BackupFullExpire
1310 my($client, $Backups) = @_;
1312 my $fullPeriod = $Conf{FullPeriod};
1313 my $origFullPeriod = $fullPeriod;
1314 my $fullKeepCnt = $Conf{FullKeepCnt};
1315 my $fullKeepIdx = 0;
1316 my(@delete, @fullList);
1319 # Don't delete anything if $Conf{FullPeriod} or $Conf{FullKeepCnt} are
1320 # not defined - possibly a corrupted config.pl file.
1322 return if ( !defined($Conf{FullPeriod}) || !defined($Conf{FullKeepCnt}) );
1325 # If regular backups are still disabled with $Conf{FullPeriod} < 0,
1326 # we still expire backups based on a typical FullPeriod value - weekly.
1328 $fullPeriod = 7 if ( $fullPeriod <= 0 );
1330 $fullKeepCnt = [$fullKeepCnt] if ( ref($fullKeepCnt) ne "ARRAY" );
1332 for ( my $i = 0 ; $i < @$Backups ; $i++ ) {
1333 next if ( $Backups->[$i]{type} ne "full" );
1334 push(@fullList, $i);
1336 for ( my $k = @fullList - 1 ; $k >= 0 ; $k-- ) {
1337 my $i = $fullList[$k];
1338 my $prevFull = $fullList[$k-1] if ( $k > 0 );
1340 # Don't delete any full that is followed by an unfilled backup,
1341 # since it is needed for restore.
1343 my $noDelete = $i + 1 < @$Backups ? $Backups->[$i+1]{noFill} : 0;
1346 ($fullKeepIdx >= @$fullKeepCnt
1349 && $Backups->[$i]{startTime} - $Backups->[$prevFull]{startTime}
1350 < ($fullPeriod - $origFullPeriod / 2) * 24 * 3600
1354 # Delete the full backup
1356 #print("Deleting backup $i ($prevFull)\n");
1357 unshift(@delete, $i);
1360 while ( $fullKeepIdx < @$fullKeepCnt
1361 && $fullCnt >= $fullKeepCnt->[$fullKeepIdx] ) {
1364 $fullPeriod = 2 * $fullPeriod;
1369 # Now actually delete the backups
1371 for ( my $i = @delete - 1 ; $i >= 0 ; $i-- ) {
1372 print(LOG $bpc->timeStamp,
1373 "removing full backup $Backups->[$delete[$i]]{num}\n");
1374 BackupRemove($client, $Backups, $delete[$i]);
1380 # Removes any partial backups
1382 sub BackupPartialRemove
1384 my($client, $Backups) = @_;
1386 for ( my $i = @$Backups - 1 ; $i >= 0 ; $i-- ) {
1387 next if ( $Backups->[$i]{type} ne "partial" );
1388 BackupRemove($client, $Backups, $i);
1394 my @Backups = $bpc->BackupInfoRead($client);
1399 # Since we got a good backup we should remove any partial dumps
1400 # (the new backup might also be a partial, but that's ok).
1402 BackupPartialRemove($client, \@Backups);
1403 $needLink = 1 if ( -f "$Dir/NewFileList" );
1406 # Number the new backup
1408 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
1409 $num = $Backups[$i]{num} if ( $num < $Backups[$i]{num} );
1412 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/$num") if ( -d "$Dir/$num" );
1413 if ( !rename("$Dir/new", "$Dir/$num") ) {
1414 print(LOG $bpc->timeStamp, "Rename $Dir/new -> $Dir/$num failed\n");
1420 # Add the new backup information to the backup file
1423 $Backups[$i]{num} = $num;
1424 $Backups[$i]{type} = $type;
1425 $Backups[$i]{startTime} = $startTime;
1426 $Backups[$i]{endTime} = $endTime;
1427 $Backups[$i]{size} = $sizeTotal;
1428 $Backups[$i]{nFiles} = $nFilesTotal;
1429 $Backups[$i]{xferErrs} = $stat{xferErrCnt} || 0;
1430 $Backups[$i]{xferBadFile} = $stat{xferBadFileCnt} || 0;
1431 $Backups[$i]{xferBadShare} = $stat{xferBadShareCnt} || 0;
1432 $Backups[$i]{nFilesExist} = $nFilesExist;
1433 $Backups[$i]{sizeExist} = $sizeExist;
1434 $Backups[$i]{sizeExistComp} = $sizeExistComp;
1435 $Backups[$i]{tarErrs} = $tarErrs;
1436 $Backups[$i]{compress} = $Conf{CompressLevel};
1437 $Backups[$i]{noFill} = $type eq "incr" ? 1 : 0;
1438 $Backups[$i]{level} = $incrLevel;
1439 $Backups[$i]{mangle} = 1; # name mangling always on for v1.04+
1440 $Backups[$i]{xferMethod} = $Conf{XferMethod};
1441 $Backups[$i]{charset} = $Conf{ClientCharset};
1442 $Backups[$i]{version} = $bpc->Version();
1444 # Save the main backups file
1446 $bpc->BackupInfoWrite($client, @Backups);
1448 # Save just this backup's info in case the main backups file
1451 BackupPC::Storage->backupInfoWrite($Dir, $Backups[$i]{num},
1454 unlink("$Dir/timeStamp.level0") if ( -f "$Dir/timeStamp.level0" );
1455 foreach my $ext ( qw(bad bad.z) ) {
1456 next if ( !-f "$Dir/XferLOG.$ext" );
1457 unlink("$Dir/XferLOG.$ext.old") if ( -f "$Dir/XferLOG.$ext" );
1458 rename("$Dir/XferLOG.$ext", "$Dir/XferLOG.$ext.old");
1462 # Now remove the bad files, replacing them if possible with links to
1465 foreach my $f ( $xfer->getBadFiles ) {
1467 my $shareM = $bpc->fileNameEltMangle($f->{share});
1468 my $fileM = $bpc->fileNameMangle($f->{file});
1469 unlink("$Dir/$num/$shareM/$fileM");
1470 for ( $j = $i - 1 ; $j >= 0 ; $j-- ) {
1472 if ( $Backups[$j]{mangle} ) {
1473 $file = "$shareM/$fileM";
1475 $file = "$f->{share}/$f->{file}";
1477 next if ( !-f "$Dir/$Backups[$j]{num}/$file" );
1479 my($exists, $digest, $origSize, $outSize, $errs)
1480 = BackupPC::PoolWrite::LinkOrCopy(
1482 "$Dir/$Backups[$j]{num}/$file",
1483 $Backups[$j]{compress},
1484 "$Dir/$num/$shareM/$fileM",
1485 $Conf{CompressLevel});
1488 # the hard link failed, most likely because the target
1489 # file has too many links. We have copied the file
1490 # instead, so add this to the new file list.
1492 if ( !defined($newFilesFH) ) {
1493 my $str = "Appending to NewFileList for $shareM/$fileM\n";
1494 $XferLOG->write(\$str);
1495 open($newFilesFH, ">>", "$TopDir/pc/$client/NewFileList")
1496 || die("can't open $TopDir/pc/$client/NewFileList");
1497 binmode($newFilesFH);
1499 if ( -f "$Dir/$num/$shareM/$fileM" ) {
1500 print($newFilesFH "$digest $origSize $shareM/$fileM\n");
1502 my $str = "Unable to link/copy $num/$f->{share}/$f->{file}"
1503 . " to $Backups[$j]{num}/$f->{share}/$f->{file}\n";
1504 $XferLOG->write(\$str);
1507 my $str = "Bad file $num/$f->{share}/$f->{file} replaced"
1509 . " $Backups[$j]{num}/$f->{share}/$f->{file}\n";
1510 $XferLOG->write(\$str);
1515 my $str = "Removed bad file $num/$f->{share}/$f->{file}"
1516 . " (no older copy to link to)\n";
1517 $XferLOG->write(\$str);
1520 close($newFilesFH) if ( defined($newFilesFH) );
1522 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.$num$fileExt");
1523 rename("$Dir/NewFileList", "$Dir/NewFileList.$num");
1529 # Removes a specific backup
1533 my($client, $Backups, $idx) = @_;
1534 my($Dir) = "$TopDir/pc/$client";
1536 if ( $Backups->[$idx]{num} eq "" ) {
1537 print("BackupRemove: ignoring empty backup number for idx $idx\n");
1541 $bpc->RmTreeDefer("$TopDir/trash",
1542 "$Dir/$Backups->[$idx]{num}");
1543 unlink("$Dir/SmbLOG.$Backups->[$idx]{num}")
1544 if ( -f "$Dir/SmbLOG.$Backups->[$idx]{num}" );
1545 unlink("$Dir/SmbLOG.$Backups->[$idx]{num}.z")
1546 if ( -f "$Dir/SmbLOG.$Backups->[$idx]{num}.z" );
1547 unlink("$Dir/XferLOG.$Backups->[$idx]{num}")
1548 if ( -f "$Dir/XferLOG.$Backups->[$idx]{num}" );
1549 unlink("$Dir/XferLOG.$Backups->[$idx]{num}.z")
1550 if ( -f "$Dir/XferLOG.$Backups->[$idx]{num}.z" );
1551 splice(@{$Backups}, $idx, 1);
1554 sub CorrectHostCheck
1556 my($hostIP, $host) = @_;
1557 return if ( $hostIP eq $host && !$Conf{FixedIPNetBiosNameCheck}
1558 || $Conf{NmbLookupCmd} eq "" );
1559 my($netBiosHost, $netBiosUser) = $bpc->NetBiosInfoGet($hostIP);
1560 return "host $host has mismatching netbios name $netBiosHost"
1561 if ( $netBiosHost ne $host );
1566 # The Xfer method might tell us from time to time about processes
1567 # it forks. We tell BackupPC about this (for status displays) and
1568 # keep track of the pids in case we cancel the backup
1573 @xferPid = grep(/./, @xferPid);
1574 return if ( !@xferPid && $tarPid < 0 );
1575 my @pids = @xferPid;
1576 push(@pids, $tarPid) if ( $tarPid > 0 );
1577 my $str = join(",", @pids);
1578 $XferLOG->write(\"Xfer PIDs are now $str\n") if ( defined($XferLOG) );
1579 print("xferPids $str\n");
1583 # Run an optional pre- or post-dump command
1587 my($cmdType, $sharename) = @_;
1589 return if ( !defined($Conf{$cmdType}) );
1595 user => $Hosts->{$client}{user},
1596 moreUsers => $Hosts->{$client}{moreUsers},
1597 share => $ShareNames->[0],
1598 shares => $ShareNames,
1599 XferMethod => $Conf{XferMethod},
1600 sshPath => $Conf{SshPath},
1602 XferLOG => $XferLOG,
1604 xferOK => $stat{xferOK} || 0,
1605 hostError => $stat{hostError},
1607 cmdType => $cmdType,
1610 if ($cmdType eq 'DumpPreShareCmd' || $cmdType eq 'DumpPostShareCmd') {
1611 $vars->{share} = $sharename;
1614 my $cmd = $bpc->cmdVarSubstitute($Conf{$cmdType}, $vars);
1615 $XferLOG->write(\"Executing $cmdType: @$cmd\n");
1617 # Run the user's command, dumping the stdout/stderr into the
1618 # Xfer log file. Also supply the optional $vars and %Conf in
1619 # case the command is really perl code instead of a shell
1622 $bpc->cmdSystemOrEval($cmd,
1624 $XferLOG->write(\$_[0]);