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) 2001-2007 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 3.1.0, released 25 Nov 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;
311 # Maintain backward compatibility with $Conf{FullPeriod} == -1 or -2
312 # meaning disable backups
314 $Conf{BackupsDisable} = -$Conf{FullPeriod}
315 if ( !$Conf{BackupsDisable} && $Conf{FullPeriod} < 0 );
317 if ( $Conf{BackupsDisable} == 1 && !$opts{f} && !$opts{i}
318 || $Conf{BackupsDisable} == 2 ) {
319 print(STDERR "Exiting because backups are disabled with"
320 . " \$Conf{BackupsDisable} = $Conf{BackupsDisable}\n") if ( $opts{v} );
322 # Tell BackupPC to ignore old failed backups on hosts that
323 # have backups disabled.
325 print("backups disabled\n")
326 if ( defined($StatusHost{errorTime})
327 && $StatusHost{reason} ne "Reason_backup_done"
328 && time - $StatusHost{errorTime} > 4 * 24 * 3600 );
329 NothingToDo($needLink);
332 if ( !$opts{i} && !$opts{f} && $Conf{BlackoutGoodCnt} >= 0
333 && $StatusHost{aliveCnt} >= $Conf{BlackoutGoodCnt} ) {
334 my($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
335 my($currHours) = $hour + $min / 60 + $sec / 3600;
338 foreach my $p ( @{$Conf{BlackoutPeriods}} ) {
340 # Allow blackout to span midnight (specified by hourBegin
341 # being greater than hourEnd)
343 next if ( ref($p->{weekDays}) ne "ARRAY"
344 || !defined($p->{hourBegin})
345 || !defined($p->{hourEnd})
347 if ( $p->{hourBegin} > $p->{hourEnd} ) {
348 $blackout = $p->{hourBegin} <= $currHours
349 || $currHours <= $p->{hourEnd};
350 if ( $currHours <= $p->{hourEnd} ) {
352 # This is after midnight, so decrement the weekday for the
353 # weekday check (eg: Monday 11pm-1am means Monday 2300 to
354 # Tuesday 0100, not Monday 2300-2400 plus Monday 0000-0100).
357 $wday += 7 if ( $wday < 0 );
360 $blackout = $p->{hourBegin} <= $currHours
361 && $currHours <= $p->{hourEnd};
363 if ( $blackout && grep($_ == $wday, @{$p->{weekDays}}) ) {
364 # print(LOG $bpc->timeStamp, "skipping because of blackout"
365 # . " (alive $StatusHost{aliveCnt} times)\n");
366 print(STDERR "Skipping $client because of blackout\n")
368 NothingToDo($needLink);
373 if ( !$opts{i} && !$opts{f} && $StatusHost{backoffTime} > time ) {
374 printf(LOG "%sskipping because of user requested delay (%.1f hours left)\n",
375 $bpc->timeStamp, ($StatusHost{backoffTime} - time) / 3600);
376 NothingToDo($needLink);
380 # Now see if there are any old backups we should delete
382 BackupExpire($client);
384 my(@lastIdxByLevel, $incrCntSinceFull);
387 # Read Backup information, and find times of the most recent full and
388 # incremental backups. Also figure out which backup we will use
389 # as a starting point for an incremental.
391 @Backups = $bpc->BackupInfoRead($client);
392 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
393 $needLink = 1 if ( $Backups[$i]{nFilesNew} eq ""
394 || -f "$Dir/NewFileList.$Backups[$i]{num}" );
395 if ( $Backups[$i]{type} eq "full" ) {
396 $incrCntSinceFull = 0;
397 $lastBkupNum = $Backups[$i]{num};
398 $lastIdxByLevel[0] = $i;
399 if ( $lastFullTime < $Backups[$i]{startTime} ) {
400 $lastFullTime = $Backups[$i]{startTime};
402 } elsif ( $Backups[$i]{type} eq "incr" ) {
404 $lastBkupNum = $Backups[$i]{num};
405 $lastIdxByLevel[$Backups[$i]{level}] = $i;
406 $lastIncrTime = $Backups[$i]{startTime}
407 if ( $lastIncrTime < $Backups[$i]{startTime} );
408 } elsif ( $Backups[$i]{type} eq "partial" ) {
410 $lastPartial = $Backups[$i]{startTime};
411 $partialNum = $Backups[$i]{num};
412 $partialFileCnt = $Backups[$i]{nFiles};
417 # Decide whether we do nothing, or a full or incremental backup.
421 || (!$opts{i} && (time - $lastFullTime > $Conf{FullPeriod} * 24*3600
422 && time - $lastIncrTime > $Conf{IncrPeriod} * 24*3600)) ) {
425 $incrBaseBkupNum = $lastBkupNum;
426 } elsif ( $opts{i} || (time - $lastIncrTime > $Conf{IncrPeriod} * 24*3600
427 && time - $lastFullTime > $Conf{IncrPeriod} * 24*3600) ) {
430 # For an incremental backup, figure out which level we should
431 # do and the index of the reference backup, which is the most
432 # recent backup at any lower level.
434 @{$Conf{IncrLevels}} = [$Conf{IncrLevels}]
435 unless ref($Conf{IncrLevels}) eq "ARRAY";
436 @{$Conf{IncrLevels}} = [1] if ( !@{$Conf{IncrLevels}} );
437 $incrCntSinceFull = $incrCntSinceFull % @{$Conf{IncrLevels}};
438 $incrLevel = $Conf{IncrLevels}[$incrCntSinceFull];
439 for ( my $i = 0 ; $i < $incrLevel ; $i++ ) {
440 my $idx = $lastIdxByLevel[$i];
441 next if ( !defined($idx) );
442 if ( !defined($incrBaseTime)
443 || $Backups[$idx]{startTime} > $incrBaseTime ) {
444 $incrBaseBkupNum = $Backups[$idx]{num};
445 $incrBaseLevel = $Backups[$idx]{level};
446 $incrBaseTime = $Backups[$idx]{startTime};
450 # Can't find any earlier lower-level backup! Shouldn't
451 # happen - just do full instead
453 if ( !defined($incrBaseBkupNum) || $incrLevel < 1 ) {
455 $incrBaseBkupNum = $lastBkupNum;
458 NothingToDo($needLink);
461 if ( !$bpc->HardlinkTest($Dir, "$TopDir/cpool") ) {
462 print(LOG $bpc->timeStamp, "Can't create a test hardlink between a file"
463 . " in $Dir and $TopDir/cpool. Either these are different"
464 . " file systems, or this file system doesn't support hardlinks,"
465 . " or these directories don't exist, or there is a permissions"
466 . " problem, or the file system is out of inodes or full. Use"
467 . " df, df -i, and ls -ld to check each of these possibilities."
469 print("test hardlink between $Dir and $TopDir/cpool failed\n");
470 print("link $clientURI\n") if ( $needLink );
475 # Check if $host is alive
477 my $delay = $bpc->CheckHostAlive($hostIP);
479 print(LOG $bpc->timeStamp, "no ping response\n");
480 print("no ping response\n");
481 print("link $clientURI\n") if ( $needLink );
483 } elsif ( $delay > $Conf{PingMaxMsec} ) {
484 printf(LOG "%sping too slow: %.4gmsec\n", $bpc->timeStamp, $delay);
485 printf("ping too slow: %.4gmsec (threshold is %gmsec)\n",
486 $delay, $Conf{PingMaxMsec});
487 print("link $clientURI\n") if ( $needLink );
492 # Make sure it is really the machine we expect (only for fixed addresses,
493 # since we got the DHCP address above).
495 if ( !$opts{d} && (my $errMsg = CorrectHostCheck($hostIP, $host)) ) {
496 print(LOG $bpc->timeStamp, "dump failed: $errMsg\n");
497 print("dump failed: $errMsg\n");
499 } elsif ( $opts{d} ) {
500 print(LOG $bpc->timeStamp, "$host is dhcp $hostIP, user is $user\n");
504 # Get a clean directory $Dir/new
506 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
509 # Setup file extension for compression and open XferLOG output file
511 if ( $Conf{CompressLevel} && !BackupPC::FileZIO->compOk ) {
512 print(LOG $bpc->timeStamp, "dump failed: can't find Compress::Zlib\n");
513 print("dump failed: can't find Compress::Zlib\n");
516 my $fileExt = $Conf{CompressLevel} > 0 ? ".z" : "";
517 my $XferLOG = BackupPC::FileZIO->open("$Dir/XferLOG$fileExt", 1,
518 $Conf{CompressLevel});
519 if ( !defined($XferLOG) ) {
520 print(LOG $bpc->timeStamp, "dump failed: unable to open/create"
521 . " $Dir/XferLOG$fileExt\n");
522 print("dump failed: unable to open/create $Dir/XferLOG$fileExt\n");
527 # Ignore the partial dump in the case of an incremental
528 # or when the partial is too old. A partial is a partial full.
530 if ( $type ne "full" || time - $lastPartial > $Conf{PartialAgeMax} * 24*3600 ) {
536 # If this is a partial, copy the old XferLOG file
539 my($compress, $fileName);
540 if ( -f "$Dir/XferLOG.$partialNum.z" ) {
541 $fileName = "$Dir/XferLOG.$partialNum.z";
543 } elsif ( -f "$Dir/XferLOG.$partialNum" ) {
544 $fileName = "$Dir/XferLOG.$partialNum";
547 if ( my $oldLOG = BackupPC::FileZIO->open($fileName, 0, $compress) ) {
549 while ( $oldLOG->read(\$data, 65536) > 0 ) {
550 $XferLOG->write(\$data);
556 $XferLOG->writeTeeStderr(1) if ( $opts{v} );
557 unlink("$Dir/NewFileList") if ( -f "$Dir/NewFileList" );
559 my $startTime = time();
563 my $sizeExistComp = 0;
566 my($logMsg, %stat, $xfer, $ShareNames, $noFilesErr);
569 if ( $Conf{XferMethod} eq "tar" ) {
570 $ShareNames = $Conf{TarShareName};
571 } elsif ( $Conf{XferMethod} eq "rsync" || $Conf{XferMethod} eq "rsyncd" ) {
572 $ShareNames = $Conf{RsyncShareName};
573 } elsif ( $Conf{XferMethod} eq "backuppcd" ) {
574 $ShareNames = $Conf{BackupPCdShareName};
576 $ShareNames = $Conf{SmbShareName};
579 $ShareNames = [ $ShareNames ] unless ref($ShareNames) eq "ARRAY";
582 # Run an optional pre-dump command
584 UserCommandRun("DumpPreUserCmd");
585 if ( $? && $Conf{UserCmdCheckStatus} ) {
586 print(LOG $bpc->timeStamp,
587 "DumpPreUserCmd returned error status $?... exiting\n");
588 print("dump failed: DumpPreUserCmd returned error status $?\n");
594 # Now backup each of the shares
596 for my $shareName ( @$ShareNames ) {
600 # Convert $shareName to utf8 octets
602 $shareName = encode("utf8", $shareName);
603 $stat{xferOK} = $stat{hostAbort} = undef;
604 $stat{hostError} = $stat{lastOutputLine} = undef;
605 if ( -d "$Dir/new/$shareName" ) {
606 print(LOG $bpc->timeStamp,
607 "unexpected repeated share name $shareName skipped\n");
611 UserCommandRun("DumpPreShareCmd", $shareName);
612 if ( $? && $Conf{UserCmdCheckStatus} ) {
613 print(LOG $bpc->timeStamp,
614 "DumpPreShareCmd returned error status $?... exiting\n");
615 print("dump failed: DumpPreShareCmd returned error status $?\n");
616 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
620 if ( $Conf{XferMethod} eq "tar" ) {
622 # Use tar (eg: tar/ssh) as the transport program.
624 $xfer = BackupPC::Xfer::Tar->new($bpc);
625 } elsif ( $Conf{XferMethod} eq "rsync" || $Conf{XferMethod} eq "rsyncd" ) {
627 # Use rsync as the transport program.
629 if ( !defined($xfer = BackupPC::Xfer::Rsync->new($bpc)) ) {
630 my $errStr = BackupPC::Xfer::Rsync::errStr;
631 print(LOG $bpc->timeStamp, "dump failed: $errStr\n");
632 print("dump failed: $errStr\n");
633 UserCommandRun("DumpPostShareCmd", $shareName) if ( $NeedPostCmd );
634 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
637 } elsif ( $Conf{XferMethod} eq "backuppcd" ) {
639 # Use backuppcd as the transport program.
641 if ( !defined($xfer = BackupPC::Xfer::BackupPCd->new($bpc)) ) {
642 my $errStr = BackupPC::Xfer::BackupPCd::errStr;
643 print(LOG $bpc->timeStamp, "dump failed: $errStr\n");
644 print("dump failed: $errStr\n");
645 UserCommandRun("DumpPostShareCmd", $shareName) if ( $NeedPostCmd );
646 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
651 # Default is to use smbclient (smb) as the transport program.
653 $xfer = BackupPC::Xfer::Smb->new($bpc);
656 my $useTar = $xfer->useTar;
660 # This xfer method outputs a tar format file, so we start a
661 # BackupPC_tarExtract to extract the data.
663 # Create a socketpair to connect the Xfer method to BackupPC_tarExtract
664 # WH is the write handle for writing, provided to the transport
665 # program, and RH is the other end of the socket for reading,
666 # provided to BackupPC_tarExtract.
668 if ( socketpair(RH, WH, AF_UNIX, SOCK_STREAM, PF_UNSPEC) ) {
669 shutdown(RH, 1); # no writing to this socket
670 shutdown(WH, 0); # no reading from this socket
671 setsockopt(RH, SOL_SOCKET, SO_RCVBUF, 8 * 65536);
672 setsockopt(WH, SOL_SOCKET, SO_SNDBUF, 8 * 65536);
675 # Default to pipe() if socketpair() doesn't work.
681 # fork a child for BackupPC_tarExtract. TAR is a file handle
682 # on which we (the parent) read the stdout & stderr from
683 # BackupPC_tarExtract.
685 if ( !defined($tarPid = open(TAR, "-|")) ) {
686 print(LOG $bpc->timeStamp, "can't fork to run tar\n");
687 print("can't fork to run tar\n");
695 # This is the tar child. Close the write end of the pipe,
696 # clone STDERR to STDOUT, clone STDIN from RH, and then
697 # exec BackupPC_tarExtract.
702 open(STDERR, ">&STDOUT");
706 exec("$BinDir/BackupPC_tarExtract", $client, $shareName,
707 $Conf{CompressLevel});
708 print(LOG $bpc->timeStamp,
709 "can't exec $BinDir/BackupPC_tarExtract\n");
712 } elsif ( !defined($newFilesFH) ) {
714 # We need to create the NewFileList output file
717 open(NEW_FILES, ">", "$TopDir/pc/$client/NewFileList")
718 || die("can't open $TopDir/pc/$client/NewFileList");
719 $newFilesFH = *NEW_FILES;
724 # Run the transport program
730 shareName => $shareName,
734 newFilesFH => $newFilesFH,
737 incrBaseTime => $incrBaseTime,
738 incrBaseBkupNum => $incrBaseBkupNum,
739 backups => \@Backups,
740 compress => $Conf{CompressLevel},
741 XferMethod => $Conf{XferMethod},
742 logLevel => $Conf{XferLogLevel},
743 pidHandler => \&pidHandler,
744 partialNum => $partialNum,
747 if ( !defined($logMsg = $xfer->start()) ) {
748 print(LOG $bpc->timeStamp, "xfer start failed: ", $xfer->errStr, "\n");
749 print("dump failed: ", $xfer->errStr, "\n");
750 print("link $clientURI\n") if ( $needLink );
752 # kill off the tar process, first nicely then forcefully
755 kill($bpc->sigName2num("INT"), $tarPid);
757 kill($bpc->sigName2num("KILL"), $tarPid);
760 kill($bpc->sigName2num("INT"), @xferPid);
762 kill($bpc->sigName2num("KILL"), @xferPid);
764 UserCommandRun("DumpPostShareCmd", $shareName) if ( $NeedPostCmd );
765 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
769 @xferPid = $xfer->xferPid;
773 # The parent must close both handles on the pipe since the children
774 # are using these handles now.
779 print(LOG $bpc->timeStamp, $logMsg, "\n");
780 $XferLOG->write(\"$logMsg\n");
781 print("started $type dump, share=$shareName\n");
783 pidHandler(@xferPid);
787 # Parse the output of the transfer program and BackupPC_tarExtract
788 # while they run. Since we might be reading from two or more children
791 my($FDread, $tarOut, $mesg);
792 vec($FDread, fileno(TAR), 1) = 1 if ( $useTar );
793 $xfer->setSelectMask(\$FDread);
797 last if ( $FDread =~ /^\0*$/ );
798 select(my $rout = $FDread, undef, $ein, undef);
800 if ( vec($rout, fileno(TAR), 1) ) {
801 if ( sysread(TAR, $mesg, 8192) <= 0 ) {
802 vec($FDread, fileno(TAR), 1) = 0;
808 while ( $tarOut =~ /(.*?)[\n\r]+(.*)/s ) {
812 $XferLOG->write(\"$_\n");
814 $XferLOG->write(\"tarExtract: $_\n");
816 if ( /^BackupPC_tarExtact aborting \((.*)\)/ ) {
817 $stat{hostError} = $1;
819 if ( /^Done: (\d+) errors, (\d+) filesExist, (\d+) sizeExist, (\d+) sizeExistComp, (\d+) filesTotal, (\d+) sizeTotal/ ) {
823 $sizeExistComp += $4;
829 last if ( !$xfer->readOutput(\$FDread, $rout) );
830 while ( my $str = $xfer->logMsgGet ) {
831 print(LOG $bpc->timeStamp, "xfer: $str\n");
833 if ( $xfer->getStats->{fileCnt} == 1 ) {
835 # Make sure it is still the machine we expect. We do this while
836 # the transfer is running to avoid a potential race condition if
837 # the ip address was reassigned by dhcp just before we started
840 if ( my $errMsg = CorrectHostCheck($hostIP, $host) ) {
841 $stat{hostError} = $errMsg if ( $stat{hostError} eq "" );
848 # otherwise the xfer module does everything for us
850 my @results = $xfer->run();
851 $tarErrs += $results[0];
852 $nFilesExist += $results[1];
853 $sizeExist += $results[2];
854 $sizeExistComp += $results[3];
855 $nFilesTotal += $results[4];
856 $sizeTotal += $results[5];
860 # Merge the xfer status (need to accumulate counts)
862 my $newStat = $xfer->getStats;
863 if ( $newStat->{fileCnt} == 0 ) {
864 $noFilesErr ||= "No files dumped for share $shareName";
866 foreach my $k ( (keys(%stat), keys(%$newStat)) ) {
867 next if ( !defined($newStat->{$k}) );
868 if ( $k =~ /Cnt$/ ) {
869 $stat{$k} += $newStat->{$k};
870 delete($newStat->{$k});
873 if ( !defined($stat{$k}) ) {
874 $stat{$k} = $newStat->{$k};
875 delete($newStat->{$k});
880 if ( $NeedPostCmd ) {
881 UserCommandRun("DumpPostShareCmd", $shareName);
882 if ( $? && $Conf{UserCmdCheckStatus} ) {
883 print(LOG $bpc->timeStamp,
884 "DumpPostShareCmd returned error status $?... exiting\n");
885 $stat{hostError} = "DumpPostShareCmd returned error status $?";
889 $stat{xferOK} = 0 if ( $stat{hostError} || $stat{hostAbort} );
890 if ( !$stat{xferOK} ) {
892 # kill off the transfer program, first nicely then forcefully
895 kill($bpc->sigName2num("INT"), @xferPid);
897 kill($bpc->sigName2num("KILL"), @xferPid);
900 # kill off the tar process, first nicely then forcefully
903 kill($bpc->sigName2num("INT"), $tarPid);
905 kill($bpc->sigName2num("KILL"), $tarPid);
908 # don't do any more shares on this host
915 # If this is a full, and any share had zero files then consider the dump bad
917 if ( $type eq "full" && $stat{hostError} eq ""
918 && length($noFilesErr) && $Conf{BackupZeroFilesIsFatal} ) {
919 $stat{hostError} = $noFilesErr;
923 $stat{xferOK} = 0 if ( $Abort );
926 # If there is no "new" directory then the backup is bad
928 if ( $stat{xferOK} && !-d "$Dir/new" ) {
929 $stat{hostError} = "No backup directory $Dir/new"
930 if ( $stat{hostError} eq "" );
935 # Do one last check to make sure it is still the machine we expect.
937 if ( $stat{xferOK} && (my $errMsg = CorrectHostCheck($hostIP, $host)) ) {
938 $stat{hostError} = $errMsg;
942 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
943 if ( $? && $Conf{UserCmdCheckStatus} ) {
944 print(LOG $bpc->timeStamp,
945 "DumpPostUserCmd returned error status $?... exiting\n");
946 $stat{hostError} = "DumpPostUserCmd returned error status $?";
949 close($newFilesFH) if ( defined($newFilesFH) );
951 my $endTime = time();
954 # If the dump failed, clean up
956 if ( !$stat{xferOK} ) {
957 $stat{hostError} = $stat{lastOutputLine} if ( $stat{hostError} eq "" );
958 if ( $stat{hostError} ) {
959 print(LOG $bpc->timeStamp,
960 "Got fatal error during xfer ($stat{hostError})\n");
961 $XferLOG->write(\"Got fatal error during xfer ($stat{hostError})\n");
965 # wait a short while and see if the system is still alive
968 if ( $bpc->CheckHostAlive($hostIP) < 0 ) {
969 $stat{hostAbort} = 1;
971 if ( $stat{hostAbort} ) {
972 $stat{hostError} = "lost network connection during backup";
974 print(LOG $bpc->timeStamp, "Backup aborted ($stat{hostError})\n");
975 $XferLOG->write(\"Backup aborted ($stat{hostError})\n");
977 $XferLOG->write(\"Backup aborted by user signal\n");
981 # Close the log file and call BackupFailCleanup, which exits.
986 my $newNum = BackupSave();
988 my $otherCount = $stat{xferErrCnt} - $stat{xferBadFileCnt}
989 - $stat{xferBadShareCnt};
990 $stat{fileCnt} ||= 0;
991 $stat{byteCnt} ||= 0;
992 $stat{xferErrCnt} ||= 0;
993 $stat{xferBadFileCnt} ||= 0;
994 $stat{xferBadShareCnt} ||= 0;
995 print(LOG $bpc->timeStamp,
996 "$type backup $newNum complete, $stat{fileCnt} files,"
997 . " $stat{byteCnt} bytes,"
998 . " $stat{xferErrCnt} xferErrs ($stat{xferBadFileCnt} bad files,"
999 . " $stat{xferBadShareCnt} bad shares, $otherCount other)\n");
1001 BackupExpire($client);
1003 print("$type backup complete\n");
1005 ###########################################################################
1007 ###########################################################################
1013 print("nothing to do\n");
1014 print("link $clientURI\n") if ( $needLink );
1020 my $sigName = shift;
1023 # The first time we receive a signal we try to gracefully
1024 # abort the backup. This allows us to keep a partial dump
1025 # with the in-progress file deleted and attribute caches
1026 # flushed to disk etc.
1028 if ( !length($SigName) ) {
1030 if ( $sigName eq "INT" ) {
1031 $reason = "aborted by user (signal=$sigName)";
1033 $reason = "aborted by signal=$sigName";
1037 # Parent logs a message
1039 print(LOG $bpc->timeStamp,
1040 "Aborting backup up after signal $sigName\n");
1043 # Tell xfer to abort, but only if we actually started one
1045 $xfer->abort($reason) if ( defined($xfer) );
1048 # Send ALRMs to BackupPC_tarExtract if we are using it
1050 if ( $tarPid > 0 ) {
1051 kill($bpc->sigName2num("ARLM"), $tarPid);
1055 # Schedule a 20 second timer in case the clean
1056 # abort doesn't complete
1061 # Children ignore anything other than ALRM and INT
1063 if ( $sigName ne "ALRM" && $sigName ne "INT" ) {
1068 # The child also tells xfer to abort
1070 $xfer->abort($reason);
1073 # Schedule a 15 second timer in case the clean
1074 # abort doesn't complete
1078 $SigName = $sigName;
1084 # This is a second signal: time to clean up.
1086 if ( $Pid != $$ && ($sigName eq "ALRM" || $sigName eq "INT") ) {
1088 # Children quit quietly on ALRM or INT
1094 # Ignore other signals in children
1096 return if ( $Pid != $$ );
1098 $SIG{$sigName} = 'IGNORE';
1099 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
1100 $XferLOG->write(\"exiting after signal $sigName\n");
1102 kill($bpc->sigName2num("INT"), @xferPid);
1104 kill($bpc->sigName2num("KILL"), @xferPid);
1106 if ( $tarPid > 0 ) {
1107 kill($bpc->sigName2num("INT"), $tarPid);
1109 kill($bpc->sigName2num("KILL"), $tarPid);
1111 if ( $sigName eq "INT" ) {
1112 $stat{hostError} = "aborted by user (signal=$sigName)";
1114 $stat{hostError} = "received signal=$sigName";
1116 BackupFailCleanup();
1119 sub CheckForNewFiles
1121 if ( -f _ && $File::Find::name !~ /\/fattrib$/ ) {
1125 # No need to check entire tree
1127 $File::Find::prune = 1 if ( $nFilesTotal );
1131 sub BackupFailCleanup
1133 my $fileExt = $Conf{CompressLevel} > 0 ? ".z" : "";
1134 my $keepPartial = 0;
1137 # We keep this backup if it is a full and we actually backed
1138 # up some files. If the prior backup was a partial too, we
1139 # only keep this backup if it has more files than the previous
1142 if ( $type eq "full" ) {
1143 if ( $nFilesTotal == 0 && $xfer->getStats->{fileCnt} == 0 ) {
1145 # Xfer didn't report any files, but check in the new
1146 # directory just in case.
1148 find(\&CheckForNewFiles, "$Dir/new");
1151 if ( $nFilesTotal > $partialFileCnt
1152 || $xfer->getStats->{fileCnt} > $partialFileCnt ) {
1154 # If the last backup wasn't a partial then
1155 # $partialFileCnt is undefined, so the above
1156 # test is simply $nFilesTotal > 0
1159 if ( $partialFileCnt ) {
1160 $str = "Saving this as a partial backup\n";
1162 $str = sprintf("Saving this as a partial backup, replacing the"
1163 . " prior one (got %d and %d files versus %d)\n",
1164 $nFilesTotal, $xfer->getStats->{fileCnt}, $partialFileCnt);
1167 $str = sprintf("Not saving this as a partial backup since it has fewer"
1168 . " files than the prior one (got %d and %d files versus %d)\n",
1169 $nFilesTotal, $xfer->getStats->{fileCnt}, $partialFileCnt);
1171 $XferLOG->write(\$str);
1175 # Don't keep partials if they are disabled
1177 $keepPartial = 0 if ( $Conf{PartialAgeMax} < 0 );
1179 if ( !$keepPartial ) {
1181 # No point in saving this dump; get rid of eveything.
1184 unlink("$Dir/timeStamp.level0") if ( -f "$Dir/timeStamp.level0" );
1185 unlink("$Dir/SmbLOG.bad") if ( -f "$Dir/SmbLOG.bad" );
1186 unlink("$Dir/SmbLOG.bad$fileExt") if ( -f "$Dir/SmbLOG.bad$fileExt" );
1187 unlink("$Dir/XferLOG.bad") if ( -f "$Dir/XferLOG.bad" );
1188 unlink("$Dir/XferLOG.bad$fileExt") if ( -f "$Dir/XferLOG.bad$fileExt" );
1189 unlink("$Dir/NewFileList") if ( -f "$Dir/NewFileList" );
1190 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.bad$fileExt");
1191 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
1192 print("dump failed: $stat{hostError}\n");
1194 print("link $clientURI\n") if ( $needLink );
1198 # Ok, now we should save this as a partial dump
1201 my $newNum = BackupSave();
1202 print("dump failed: $stat{hostError}\n");
1203 print("link $clientURI\n") if ( $needLink );
1204 print(LOG $bpc->timeStamp, "Saved partial dump $newNum\n");
1209 # Decide which old backups should be expired by moving them
1215 my($Dir) = "$TopDir/pc/$client";
1216 my(@Backups) = $bpc->BackupInfoRead($client);
1217 my($cntFull, $cntIncr, $firstFull, $firstIncr, $oldestIncr,
1218 $oldestFull, $changes);
1220 if ( $Conf{FullKeepCnt} <= 0 ) {
1221 print(LOG $bpc->timeStamp,
1222 "Invalid value for \$Conf{FullKeepCnt}=$Conf{FullKeepCnt}\n");
1224 "Invalid value for \$Conf{FullKeepCnt}=$Conf{FullKeepCnt}\n")
1229 $cntFull = $cntIncr = 0;
1230 $oldestIncr = $oldestFull = 0;
1231 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
1232 if ( $Backups[$i]{type} eq "full" ) {
1233 $firstFull = $i if ( $cntFull == 0 );
1235 } elsif ( $Backups[$i]{type} eq "incr" ) {
1236 $firstIncr = $i if ( $cntIncr == 0 );
1240 $oldestIncr = (time - $Backups[$firstIncr]{startTime}) / (24 * 3600)
1241 if ( $cntIncr > 0 );
1242 $oldestFull = (time - $Backups[$firstFull]{startTime}) / (24 * 3600)
1243 if ( $cntFull > 0 );
1246 # With multi-level incrementals, several of the following
1247 # incrementals might depend upon this one, so we have to
1248 # delete all of the them. Figure out if that is possible
1249 # by counting the number of consecutive incrementals that
1250 # are unfilled and have a level higher than this one.
1253 my $earliestIncr = $oldestIncr;
1255 for ( my $i = $firstIncr + 1 ; $i < @Backups ; $i++ ) {
1256 last if ( $Backups[$i]{level} <= $Backups[$firstIncr]{level}
1257 || !$Backups[$i]{noFill} );
1259 $earliestIncr = (time - $Backups[$i]{startTime}) / (24 * 3600);
1262 if ( $cntIncr >= $Conf{IncrKeepCnt} + $cntIncrDel
1263 || ($cntIncr >= $Conf{IncrKeepCntMin} + $cntIncrDel
1264 && $earliestIncr > $Conf{IncrAgeMax}) ) {
1266 # Only delete an incr backup if the Conf settings are satisfied
1267 # for all $cntIncrDel incrementals. Since BackupRemove() does
1268 # a splice() we need to do the deletes in the reverse order.
1270 for ( my $i = $firstIncr + $cntIncrDel - 1 ;
1271 $i >= $firstIncr ; $i-- ) {
1272 print(LOG $bpc->timeStamp,
1273 "removing incr backup $Backups[$i]{num}\n");
1274 BackupRemove($client, \@Backups, $i);
1281 # Delete any old full backups, according to $Conf{FullKeepCntMin}
1282 # and $Conf{FullAgeMax}.
1284 # First make sure that $Conf{FullAgeMax} is at least bigger
1285 # than $Conf{FullPeriod} * $Conf{FullKeepCnt}, including
1286 # the exponential array case.
1288 my $fullKeepCnt = $Conf{FullKeepCnt};
1289 $fullKeepCnt = [$fullKeepCnt] if ( ref($fullKeepCnt) ne "ARRAY" );
1291 my $fullPeriod = int(0.5 + $Conf{FullPeriod});
1292 $fullPeriod = 7 if ( $fullPeriod <= 0 );
1293 for ( my $i = 0 ; $i < @$fullKeepCnt ; $i++ ) {
1294 $fullAgeMax += $fullKeepCnt->[$i] * $fullPeriod;
1297 $fullAgeMax += $fullPeriod; # add some buffer
1299 if ( $cntFull > $Conf{FullKeepCntMin}
1300 && $oldestFull > $Conf{FullAgeMax}
1301 && $oldestFull > $fullAgeMax
1302 && $Conf{FullKeepCntMin} > 0
1303 && $Conf{FullAgeMax} > 0
1304 && (@Backups <= $firstFull + 1
1305 || !$Backups[$firstFull + 1]{noFill}) ) {
1307 # Only delete a full backup if the Conf settings are satisfied.
1308 # We also must make sure that either this backup is the most
1309 # recent one, or the next backup is filled.
1310 # (We can't deleted a full backup if the next backup is not
1313 print(LOG $bpc->timeStamp,
1314 "removing old full backup $Backups[$firstFull]{num}\n");
1315 BackupRemove($client, \@Backups, $firstFull);
1321 # Do new-style full backup expiry, which includes the the case
1322 # where $Conf{FullKeepCnt} is an array.
1324 last if ( !BackupFullExpire($client, \@Backups) );
1327 $bpc->BackupInfoWrite($client, @Backups) if ( $changes );
1331 # Handle full backup expiry, using exponential periods.
1333 sub BackupFullExpire
1335 my($client, $Backups) = @_;
1337 my $fullPeriod = $Conf{FullPeriod};
1338 my $origFullPeriod = $fullPeriod;
1339 my $fullKeepCnt = $Conf{FullKeepCnt};
1340 my $fullKeepIdx = 0;
1341 my(@delete, @fullList);
1344 # Don't delete anything if $Conf{FullPeriod} or $Conf{FullKeepCnt} are
1345 # not defined - possibly a corrupted config.pl file.
1347 return if ( !defined($Conf{FullPeriod}) || !defined($Conf{FullKeepCnt}) );
1350 # If regular backups are still disabled with $Conf{FullPeriod} < 0,
1351 # we still expire backups based on a typical FullPeriod value - weekly.
1353 $fullPeriod = 7 if ( $fullPeriod <= 0 );
1355 $fullKeepCnt = [$fullKeepCnt] if ( ref($fullKeepCnt) ne "ARRAY" );
1357 for ( my $i = 0 ; $i < @$Backups ; $i++ ) {
1358 next if ( $Backups->[$i]{type} ne "full" );
1359 push(@fullList, $i);
1361 for ( my $k = @fullList - 1 ; $k >= 0 ; $k-- ) {
1362 my $i = $fullList[$k];
1363 my $prevFull = $fullList[$k-1] if ( $k > 0 );
1365 # Don't delete any full that is followed by an unfilled backup,
1366 # since it is needed for restore.
1368 my $noDelete = $i + 1 < @$Backups ? $Backups->[$i+1]{noFill} : 0;
1371 ($fullKeepIdx >= @$fullKeepCnt
1374 && $Backups->[$i]{startTime} - $Backups->[$prevFull]{startTime}
1375 < ($fullPeriod - $origFullPeriod / 2) * 24 * 3600
1379 # Delete the full backup
1381 #print("Deleting backup $i ($prevFull)\n");
1382 unshift(@delete, $i);
1385 while ( $fullKeepIdx < @$fullKeepCnt
1386 && $fullCnt >= $fullKeepCnt->[$fullKeepIdx] ) {
1389 $fullPeriod = 2 * $fullPeriod;
1394 # Now actually delete the backups
1396 for ( my $i = @delete - 1 ; $i >= 0 ; $i-- ) {
1397 print(LOG $bpc->timeStamp,
1398 "removing full backup $Backups->[$delete[$i]]{num}\n");
1399 BackupRemove($client, $Backups, $delete[$i]);
1405 # Removes any partial backups
1407 sub BackupPartialRemove
1409 my($client, $Backups) = @_;
1411 for ( my $i = @$Backups - 1 ; $i >= 0 ; $i-- ) {
1412 next if ( $Backups->[$i]{type} ne "partial" );
1413 BackupRemove($client, $Backups, $i);
1419 my @Backups = $bpc->BackupInfoRead($client);
1424 # Since we got a good backup we should remove any partial dumps
1425 # (the new backup might also be a partial, but that's ok).
1427 BackupPartialRemove($client, \@Backups);
1428 $needLink = 1 if ( -f "$Dir/NewFileList" );
1431 # Number the new backup
1433 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
1434 $num = $Backups[$i]{num} if ( $num < $Backups[$i]{num} );
1437 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/$num") if ( -d "$Dir/$num" );
1438 if ( !rename("$Dir/new", "$Dir/$num") ) {
1439 print(LOG $bpc->timeStamp, "Rename $Dir/new -> $Dir/$num failed\n");
1445 # Add the new backup information to the backup file
1448 $Backups[$i]{num} = $num;
1449 $Backups[$i]{type} = $type;
1450 $Backups[$i]{startTime} = $startTime;
1451 $Backups[$i]{endTime} = $endTime;
1452 $Backups[$i]{size} = $sizeTotal;
1453 $Backups[$i]{nFiles} = $nFilesTotal;
1454 $Backups[$i]{xferErrs} = $stat{xferErrCnt} || 0;
1455 $Backups[$i]{xferBadFile} = $stat{xferBadFileCnt} || 0;
1456 $Backups[$i]{xferBadShare} = $stat{xferBadShareCnt} || 0;
1457 $Backups[$i]{nFilesExist} = $nFilesExist;
1458 $Backups[$i]{sizeExist} = $sizeExist;
1459 $Backups[$i]{sizeExistComp} = $sizeExistComp;
1460 $Backups[$i]{tarErrs} = $tarErrs;
1461 $Backups[$i]{compress} = $Conf{CompressLevel};
1462 $Backups[$i]{noFill} = $type eq "incr" ? 1 : 0;
1463 $Backups[$i]{level} = $incrLevel;
1464 $Backups[$i]{mangle} = 1; # name mangling always on for v1.04+
1465 $Backups[$i]{xferMethod} = $Conf{XferMethod};
1466 $Backups[$i]{charset} = $Conf{ClientCharset};
1467 $Backups[$i]{version} = $bpc->Version();
1469 # Save the main backups file
1471 $bpc->BackupInfoWrite($client, @Backups);
1473 # Save just this backup's info in case the main backups file
1476 BackupPC::Storage->backupInfoWrite($Dir, $Backups[$i]{num},
1479 unlink("$Dir/timeStamp.level0") if ( -f "$Dir/timeStamp.level0" );
1480 foreach my $ext ( qw(bad bad.z) ) {
1481 next if ( !-f "$Dir/XferLOG.$ext" );
1482 unlink("$Dir/XferLOG.$ext.old") if ( -f "$Dir/XferLOG.$ext" );
1483 rename("$Dir/XferLOG.$ext", "$Dir/XferLOG.$ext.old");
1487 # Now remove the bad files, replacing them if possible with links to
1490 foreach my $f ( $xfer->getBadFiles ) {
1492 my $shareM = $bpc->fileNameEltMangle($f->{share});
1493 my $fileM = $bpc->fileNameMangle($f->{file});
1494 unlink("$Dir/$num/$shareM/$fileM");
1495 for ( $j = $i - 1 ; $j >= 0 ; $j-- ) {
1497 if ( $Backups[$j]{mangle} ) {
1498 $file = "$shareM/$fileM";
1500 $file = "$f->{share}/$f->{file}";
1502 next if ( !-f "$Dir/$Backups[$j]{num}/$file" );
1504 my($exists, $digest, $origSize, $outSize, $errs)
1505 = BackupPC::PoolWrite::LinkOrCopy(
1507 "$Dir/$Backups[$j]{num}/$file",
1508 $Backups[$j]{compress},
1509 "$Dir/$num/$shareM/$fileM",
1510 $Conf{CompressLevel});
1513 # the hard link failed, most likely because the target
1514 # file has too many links. We have copied the file
1515 # instead, so add this to the new file list.
1517 if ( !defined($newFilesFH) ) {
1518 my $str = "Appending to NewFileList for $shareM/$fileM\n";
1519 $XferLOG->write(\$str);
1520 open($newFilesFH, ">>", "$TopDir/pc/$client/NewFileList")
1521 || die("can't open $TopDir/pc/$client/NewFileList");
1522 binmode($newFilesFH);
1524 if ( -f "$Dir/$num/$shareM/$fileM" ) {
1525 print($newFilesFH "$digest $origSize $shareM/$fileM\n");
1527 my $str = "Unable to link/copy $num/$f->{share}/$f->{file}"
1528 . " to $Backups[$j]{num}/$f->{share}/$f->{file}\n";
1529 $XferLOG->write(\$str);
1532 my $str = "Bad file $num/$f->{share}/$f->{file} replaced"
1534 . " $Backups[$j]{num}/$f->{share}/$f->{file}\n";
1535 $XferLOG->write(\$str);
1540 my $str = "Removed bad file $num/$f->{share}/$f->{file}"
1541 . " (no older copy to link to)\n";
1542 $XferLOG->write(\$str);
1545 close($newFilesFH) if ( defined($newFilesFH) );
1547 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.$num$fileExt");
1548 rename("$Dir/NewFileList", "$Dir/NewFileList.$num");
1554 # Removes a specific backup
1558 my($client, $Backups, $idx) = @_;
1559 my($Dir) = "$TopDir/pc/$client";
1561 if ( $Backups->[$idx]{num} eq "" ) {
1562 print("BackupRemove: ignoring empty backup number for idx $idx\n");
1566 $bpc->RmTreeDefer("$TopDir/trash",
1567 "$Dir/$Backups->[$idx]{num}");
1568 unlink("$Dir/SmbLOG.$Backups->[$idx]{num}")
1569 if ( -f "$Dir/SmbLOG.$Backups->[$idx]{num}" );
1570 unlink("$Dir/SmbLOG.$Backups->[$idx]{num}.z")
1571 if ( -f "$Dir/SmbLOG.$Backups->[$idx]{num}.z" );
1572 unlink("$Dir/XferLOG.$Backups->[$idx]{num}")
1573 if ( -f "$Dir/XferLOG.$Backups->[$idx]{num}" );
1574 unlink("$Dir/XferLOG.$Backups->[$idx]{num}.z")
1575 if ( -f "$Dir/XferLOG.$Backups->[$idx]{num}.z" );
1576 splice(@{$Backups}, $idx, 1);
1579 sub CorrectHostCheck
1581 my($hostIP, $host) = @_;
1582 return if ( $hostIP eq $host && !$Conf{FixedIPNetBiosNameCheck}
1583 || $Conf{NmbLookupCmd} eq "" );
1584 my($netBiosHost, $netBiosUser) = $bpc->NetBiosInfoGet($hostIP);
1585 return "host $host has mismatching netbios name $netBiosHost"
1586 if ( $netBiosHost ne $host );
1591 # The Xfer method might tell us from time to time about processes
1592 # it forks. We tell BackupPC about this (for status displays) and
1593 # keep track of the pids in case we cancel the backup
1598 @xferPid = grep(/./, @xferPid);
1599 return if ( !@xferPid && $tarPid < 0 );
1600 my @pids = @xferPid;
1601 push(@pids, $tarPid) if ( $tarPid > 0 );
1602 my $str = join(",", @pids);
1603 $XferLOG->write(\"Xfer PIDs are now $str\n") if ( defined($XferLOG) );
1604 print("xferPids $str\n");
1608 # Run an optional pre- or post-dump command
1612 my($cmdType, $sharename) = @_;
1614 return if ( !defined($Conf{$cmdType}) );
1620 user => $Hosts->{$client}{user},
1621 moreUsers => $Hosts->{$client}{moreUsers},
1622 share => $ShareNames->[0],
1623 shares => $ShareNames,
1624 XferMethod => $Conf{XferMethod},
1625 sshPath => $Conf{SshPath},
1627 XferLOG => $XferLOG,
1629 xferOK => $stat{xferOK} || 0,
1630 hostError => $stat{hostError},
1632 cmdType => $cmdType,
1635 if ($cmdType eq 'DumpPreShareCmd' || $cmdType eq 'DumpPostShareCmd') {
1636 $vars->{share} = $sharename;
1639 my $cmd = $bpc->cmdVarSubstitute($Conf{$cmdType}, $vars);
1640 $XferLOG->write(\"Executing $cmdType: @$cmd\n");
1642 # Run the user's command, dumping the stdout/stderr into the
1643 # Xfer log file. Also supply the optional $vars and %Conf in
1644 # case the command is really perl code instead of a shell
1647 $bpc->cmdSystemOrEval($cmd,
1649 $XferLOG->write(\$_[0]);