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 etc),
35 # extracting the dump into $TopDir/pc/$client/new. The xfer output is
36 # 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 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 2.0.2, released 6 Oct 2003.
75 # See http://backuppc.sourceforge.net.
77 #========================================================================
81 use lib "/usr/local/BackupPC2.0.2/lib";
83 use BackupPC::FileZIO;
84 use BackupPC::Xfer::Smb;
85 use BackupPC::Xfer::Tar;
86 use BackupPC::Xfer::Rsync;
91 ###########################################################################
93 ###########################################################################
95 die("BackupPC::Lib->new failed\n") if ( !(my $bpc = BackupPC::Lib->new) );
96 my $TopDir = $bpc->TopDir();
97 my $BinDir = $bpc->BinDir();
98 my %Conf = $bpc->Conf();
105 if ( !getopts("defiv", \%opts) || @ARGV != 1 ) {
106 print("usage: $0 [-d] [-e] [-f] [-i] [-v] <client>\n");
109 if ( $ARGV[0] !~ /^([\w\.\s-]+)$/ ) {
110 print("$0: bad client name '$ARGV[0]'\n");
113 my $client = $1; # BackupPC's client name (might not be real host name)
114 my $hostIP; # this is the IP address
115 my $host; # this is the real host name
117 my($clientURI, $user);
119 $bpc->verbose(1) if ( $opts{v} );
123 # The client name $client is simply a DHCP address. We need to check
124 # if there is any machine at this address, and if so, get the actual
125 # host name via NetBios using nmblookup.
128 if ( $bpc->CheckHostAlive($hostIP) < 0 ) {
129 print(STDERR "Exiting because CheckHostAlive($hostIP) failed\n")
133 if ( $Conf{NmbLookupCmd} eq "" ) {
134 print(STDERR "Exiting because \$Conf{NmbLookupCmd} is empty\n")
138 ($client, $user) = $bpc->NetBiosInfoGet($hostIP);
139 if ( $client !~ /^([\w\.\s-]+)$/ ) {
140 print(STDERR "Exiting because NetBiosInfoGet($hostIP) returned"
141 . " '$client', an invalid host name\n") if ( $opts{v} );
144 $Hosts = $bpc->HostInfoRead($client);
147 $Hosts = $bpc->HostInfoRead($client);
149 if ( !defined($Hosts->{$client}) ) {
150 print(STDERR "Exiting because host $client does not exist in the"
151 . " hosts file\n") if ( $opts{v} );
155 my $Dir = "$TopDir/pc/$client";
160 # Re-read config file, so we can include the PC-specific config
162 $clientURI = $bpc->uriEsc($client);
163 if ( defined(my $error = $bpc->ConfigRead($client)) ) {
164 print("dump failed: Can't read PC's config file: $error\n");
167 %Conf = $bpc->Conf();
170 # Catch various signals
172 $SIG{INT} = \&catch_signal;
173 $SIG{ALRM} = \&catch_signal;
174 $SIG{TERM} = \&catch_signal;
175 $SIG{PIPE} = \&catch_signal;
176 $SIG{STOP} = \&catch_signal;
177 $SIG{TSTP} = \&catch_signal;
178 $SIG{TTIN} = \&catch_signal;
182 # Make sure we eventually timeout if there is no activity from
183 # the data transport program.
185 alarm($Conf{ClientTimeout});
187 mkpath($Dir, 0, 0777) if ( !-d $Dir );
188 if ( !-f "$Dir/LOCK" ) {
189 open(LOCK, ">", "$Dir/LOCK") && close(LOCK);
191 open(LOG, ">>", "$Dir/LOG");
192 select(LOG); $| = 1; select(STDOUT);
195 # For the -e option we just expire backups and quit
198 BackupExpire($client);
204 # In the non-DHCP case, make sure the host can be looked up
205 # via NS, or otherwise find the IP address via NetBios.
207 if ( $Conf{ClientNameAlias} ne "" ) {
208 $host = $Conf{ClientNameAlias};
212 if ( !defined(gethostbyname($host)) ) {
214 # Ok, NS doesn't know about it. Maybe it is a NetBios name
217 print(STDERR "Name server doesn't know about $host; trying NetBios\n")
219 if ( !defined($hostIP = $bpc->NetBiosHostIPFind($host)) ) {
220 print(LOG $bpc->timeStamp, "Can't find host $host via netbios\n");
221 print("host not found\n");
229 ###########################################################################
230 # Figure out what to do and do it
231 ###########################################################################
234 # See if we should skip this host during a certain range
237 my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort});
239 print("Can't connect to server ($err)\n");
240 print(LOG $bpc->timeStamp, "Can't connect to server ($err)\n");
243 my $reply = $bpc->ServerMesg("status host($clientURI)");
244 $reply = $1 if ( $reply =~ /(.*)/s );
247 $bpc->ServerDisconnect();
250 # For DHCP tell BackupPC which host this is
253 if ( $StatusHost{activeJob} ) {
254 # oops, something is already running for this host
255 print(STDERR "Exiting because backup is already running for $client\n")
259 print("DHCP $hostIP $clientURI\n");
262 my($needLink, @Backups, $type, $lastBkupNum, $lastFullBkupNum);
266 if ( $Conf{FullPeriod} == -1 && !$opts{f} && !$opts{i}
267 || $Conf{FullPeriod} == -2 ) {
268 NothingToDo($needLink);
271 if ( !$opts{i} && !$opts{f} && $Conf{BlackoutGoodCnt} >= 0
272 && $StatusHost{aliveCnt} >= $Conf{BlackoutGoodCnt} ) {
273 my($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
274 my($currHours) = $hour + $min / 60 + $sec / 3600;
275 if ( $Conf{BlackoutHourBegin} <= $currHours
276 && $currHours <= $Conf{BlackoutHourEnd}
277 && grep($_ == $wday, @{$Conf{BlackoutWeekDays}}) ) {
278 # print(LOG $bpc->timeStamp, "skipping because of blackout"
279 # . " (alive $StatusHost{aliveCnt} times)\n");
280 NothingToDo($needLink);
284 if ( !$opts{i} && !$opts{f} && $StatusHost{backoffTime} > time ) {
285 printf(LOG "%sskipping because of user requested delay (%.1f hours left)",
286 $bpc->timeStamp, ($StatusHost{backoffTime} - time) / 3600);
287 NothingToDo($needLink);
291 # Now see if there are any old backups we should delete
293 BackupExpire($client);
296 # Read Backup information, and find times of the most recent full and
297 # incremental backups
299 @Backups = $bpc->BackupInfoRead($client);
300 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
301 $needLink = 1 if ( $Backups[$i]{nFilesNew} eq ""
302 || -f "$Dir/NewFileList.$Backups[$i]{num}" );
303 $lastBkupNum = $Backups[$i]{num};
304 if ( $Backups[$i]{type} eq "full" ) {
305 if ( $lastFull < $Backups[$i]{startTime} ) {
306 $lastFull = $Backups[$i]{startTime};
307 $lastFullBkupNum = $Backups[$i]{num};
310 $lastIncr = $Backups[$i]{startTime}
311 if ( $lastIncr < $Backups[$i]{startTime} );
316 # Decide whether we do nothing, or a full or incremental backup.
320 || (!$opts{i} && (time - $lastFull > $Conf{FullPeriod} * 24*3600
321 && time - $lastIncr > $Conf{IncrPeriod} * 24*3600)) ) {
323 } elsif ( $opts{i} || (time - $lastIncr > $Conf{IncrPeriod} * 24*3600
324 && time - $lastFull > $Conf{IncrPeriod} * 24*3600) ) {
327 NothingToDo($needLink);
331 # Check if $host is alive
333 my $delay = $bpc->CheckHostAlive($hostIP);
335 print(LOG $bpc->timeStamp, "no ping response\n");
336 print("no ping response\n");
337 print("link $clientURI\n") if ( $needLink );
339 } elsif ( $delay > $Conf{PingMaxMsec} ) {
340 printf(LOG "%sping too slow: %.4gmsec\n", $bpc->timeStamp, $delay);
341 printf("ping too slow: %.4gmsec (threshold is %gmsec)\n",
342 $delay, $Conf{PingMaxMsec});
343 print("link $clientURI\n") if ( $needLink );
348 # Make sure it is really the machine we expect (only for fixed addresses,
349 # since we got the DHCP address above).
351 if ( !$opts{d} && (my $errMsg = CorrectHostCheck($hostIP, $host)) ) {
352 print(LOG $bpc->timeStamp, "dump failed: $errMsg\n");
353 print("dump failed: $errMsg\n");
355 } elsif ( $opts{d} ) {
356 print(LOG $bpc->timeStamp, "$host is dhcp $hostIP, user is $user\n");
360 # Get a clean directory $Dir/new
362 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
365 # Setup file extension for compression and open XferLOG output file
367 $Conf{CompressLevel} = 0 if ( !BackupPC::FileZIO->compOk );
368 my $fileExt = $Conf{CompressLevel} > 0 ? ".z" : "";
369 my $XferLOG = BackupPC::FileZIO->open("$Dir/XferLOG$fileExt", 1,
370 $Conf{CompressLevel});
371 if ( !defined($XferLOG) ) {
372 print(LOG $bpc->timeStamp, "dump failed: unable to open/create"
373 . " $Dir/XferLOG$fileExt\n");
374 print("dump failed: unable to open/create $Dir/XferLOG$fileExt\n");
377 $XferLOG->writeTeeStdout(1) if ( $opts{v} );
378 unlink("$Dir/NewFileList");
379 my $startTime = time();
384 my $sizeExistComp = 0;
387 my($logMsg, %stat, $xfer, $ShareNames, $noFilesErr);
390 if ( $Conf{XferMethod} eq "tar" ) {
391 $ShareNames = $Conf{TarShareName};
392 } elsif ( $Conf{XferMethod} eq "rsync" || $Conf{XferMethod} eq "rsyncd" ) {
393 $ShareNames = $Conf{RsyncShareName};
395 $ShareNames = $Conf{SmbShareName};
398 $ShareNames = [ $ShareNames ] unless ref($ShareNames) eq "ARRAY";
401 # Run an optional pre-dump command
403 UserCommandRun("DumpPreUserCmd");
407 # Now backup each of the shares
409 for my $shareName ( @$ShareNames ) {
412 $stat{xferOK} = $stat{hostAbort} = undef;
413 $stat{hostError} = $stat{lastOutputLine} = undef;
414 if ( -d "$Dir/new/$shareName" ) {
415 print(LOG $bpc->timeStamp,
416 "unexpected repeated share name $shareName skipped\n");
420 if ( $Conf{XferMethod} eq "tar" ) {
422 # Use tar (eg: tar/ssh) as the transport program.
424 $xfer = BackupPC::Xfer::Tar->new($bpc);
425 } elsif ( $Conf{XferMethod} eq "rsync" || $Conf{XferMethod} eq "rsyncd" ) {
427 # Use rsync as the transport program.
429 if ( !defined($xfer = BackupPC::Xfer::Rsync->new($bpc)) ) {
430 my $errStr = BackupPC::Xfer::Rsync::errStr;
431 print(LOG $bpc->timeStamp, "dump failed: $errStr\n");
432 print("dump failed: $errStr\n");
433 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
438 # Default is to use smbclient (smb) as the transport program.
440 $xfer = BackupPC::Xfer::Smb->new($bpc);
443 my $useTar = $xfer->useTar;
447 # This xfer method outputs a tar format file, so we start a
448 # BackupPC_tarExtract to extract the data.
450 # Create a socketpair to connect the Xfer method to BackupPC_tarExtract
451 # WH is the write handle for writing, provided to the transport
452 # program, and RH is the other end of the socket for reading,
453 # provided to BackupPC_tarExtract.
455 if ( socketpair(RH, WH, AF_UNIX, SOCK_STREAM, PF_UNSPEC) ) {
456 shutdown(RH, 1); # no writing to this socket
457 shutdown(WH, 0); # no reading from this socket
458 setsockopt(RH, SOL_SOCKET, SO_RCVBUF, 8 * 65536);
459 setsockopt(WH, SOL_SOCKET, SO_SNDBUF, 8 * 65536);
462 # Default to pipe() if socketpair() doesn't work.
468 # fork a child for BackupPC_tarExtract. TAR is a file handle
469 # on which we (the parent) read the stdout & stderr from
470 # BackupPC_tarExtract.
472 if ( !defined($tarPid = open(TAR, "-|")) ) {
473 print(LOG $bpc->timeStamp, "can't fork to run tar\n");
474 print("can't fork to run tar\n");
482 # This is the tar child. Close the write end of the pipe,
483 # clone STDERR to STDOUT, clone STDIN from RH, and then
484 # exec BackupPC_tarExtract.
489 open(STDERR, ">&STDOUT");
492 exec("$BinDir/BackupPC_tarExtract", $client, $shareName,
493 $Conf{CompressLevel});
494 print(LOG $bpc->timeStamp,
495 "can't exec $BinDir/BackupPC_tarExtract\n");
498 } elsif ( !defined($newFilesFH) ) {
500 # We need to create the NewFileList output file
503 open(NEW_FILES, ">", "$TopDir/pc/$client/NewFileList")
504 || die("can't open $TopDir/pc/$client/NewFileList");
505 $newFilesFH = *NEW_FILES;
510 # Run the transport program
516 shareName => $shareName,
520 newFilesFH => $newFilesFH,
523 lastFull => $lastFull,
524 lastBkupNum => $lastBkupNum,
525 lastFullBkupNum => $lastFullBkupNum,
526 backups => \@Backups,
527 compress => $Conf{CompressLevel},
528 XferMethod => $Conf{XferMethod},
529 pidHandler => \&pidHandler,
532 if ( !defined($logMsg = $xfer->start()) ) {
533 print(LOG $bpc->timeStamp, "xfer start failed: ", $xfer->errStr, "\n");
534 print("dump failed: ", $xfer->errStr, "\n");
535 print("link $clientURI\n") if ( $needLink );
537 # kill off the tar process, first nicely then forcefully
549 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
553 @xferPid = $xfer->xferPid;
557 # The parent must close both handles on the pipe since the children
558 # are using these handles now.
563 print(LOG $bpc->timeStamp, $logMsg, "\n");
564 print("started $type dump, share=$shareName\n");
566 pidHandler(@xferPid);
570 # Parse the output of the transfer program and BackupPC_tarExtract
571 # while they run. Since we might be reading from two or more children
574 my($FDread, $tarOut, $mesg);
575 vec($FDread, fileno(TAR), 1) = 1 if ( $useTar );
576 $xfer->setSelectMask(\$FDread);
580 last if ( $FDread =~ /^\0*$/ );
581 select(my $rout = $FDread, undef, $ein, undef);
583 if ( vec($rout, fileno(TAR), 1) ) {
584 if ( sysread(TAR, $mesg, 8192) <= 0 ) {
585 vec($FDread, fileno(TAR), 1) = 0;
591 while ( $tarOut =~ /(.*?)[\n\r]+(.*)/s ) {
594 $XferLOG->write(\"tarExtract: $_\n");
595 if ( /^Done: (\d+) errors, (\d+) filesExist, (\d+) sizeExist, (\d+) sizeExistComp, (\d+) filesTotal, (\d+) sizeTotal/ ) {
599 $sizeExistComp += $4;
605 last if ( !$xfer->readOutput(\$FDread, $rout) );
606 while ( my $str = $xfer->logMsgGet ) {
607 print(LOG $bpc->timeStamp, "xfer: $str\n");
609 if ( $xfer->getStats->{fileCnt} == 1 ) {
611 # Make sure it is still the machine we expect. We do this while
612 # the transfer is running to avoid a potential race condition if
613 # the ip address was reassigned by dhcp just before we started
616 if ( my $errMsg = CorrectHostCheck($hostIP, $host) ) {
617 $stat{hostError} = $errMsg if ( $stat{hostError} eq "" );
624 # otherwise the xfer module does everything for us
626 my @results = $xfer->run();
627 $tarErrs += $results[0];
628 $nFilesExist += $results[1];
629 $sizeExist += $results[2];
630 $sizeExistComp += $results[3];
631 $nFilesTotal += $results[4];
632 $sizeTotal += $results[5];
636 # Merge the xfer status (need to accumulate counts)
638 my $newStat = $xfer->getStats;
639 if ( $newStat->{fileCnt} == 0 ) {
640 $noFilesErr ||= "No files dumped for share $shareName";
642 foreach my $k ( (keys(%stat), keys(%$newStat)) ) {
643 next if ( !defined($newStat->{$k}) );
644 if ( $k =~ /Cnt$/ ) {
645 $stat{$k} += $newStat->{$k};
646 delete($newStat->{$k});
649 if ( !defined($stat{$k}) ) {
650 $stat{$k} = $newStat->{$k};
651 delete($newStat->{$k});
655 $stat{xferOK} = 0 if ( $stat{hostError} || $stat{hostAbort} );
656 if ( !$stat{xferOK} ) {
658 # kill off the tranfer program, first nicely then forcefully
666 # kill off the tar process, first nicely then forcefully
674 # don't do any more shares on this host
682 # If this is a full, and any share had zero files then consider the dump bad
684 if ( $type eq "full" && $stat{hostError} eq ""
685 && length($noFilesErr) && $Conf{BackupZeroFilesIsFatal} ) {
686 $stat{hostError} = $noFilesErr;
691 # Do one last check to make sure it is still the machine we expect.
693 if ( $stat{xferOK} && (my $errMsg = CorrectHostCheck($hostIP, $host)) ) {
694 $stat{hostError} = $errMsg;
698 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
700 close($newFilesFH) if ( defined($newFilesFH) );
702 if ( $stat{xferOK} ) {
703 @Backups = $bpc->BackupInfoRead($client);
704 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
705 $lastNum = $Backups[$i]{num} if ( $lastNum < $Backups[$i]{num} );
708 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/$lastNum")
709 if ( -d "$Dir/$lastNum" );
710 if ( !rename("$Dir/new", "$Dir/$lastNum") ) {
711 print(LOG $bpc->timeStamp,
712 "Rename $Dir/new -> $Dir/$lastNum failed\n");
715 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.$lastNum$fileExt");
716 rename("$Dir/NewFileList", "$Dir/NewFileList.$lastNum");
718 my $endTime = time();
721 # If the dump failed, clean up
723 if ( !$stat{xferOK} ) {
725 # wait a short while and see if the system is still alive
727 $stat{hostError} = $stat{lastOutputLine} if ( $stat{hostError} eq "" );
728 if ( $stat{hostError} ) {
729 print(LOG $bpc->timeStamp,
730 "Got fatal error during xfer ($stat{hostError})\n");
733 if ( $bpc->CheckHostAlive($hostIP) < 0 ) {
734 $stat{hostAbort} = 1;
736 if ( $stat{hostAbort} ) {
737 $stat{hostError} = "lost network connection during backup";
739 print(LOG $bpc->timeStamp, "Dump aborted ($stat{hostError})\n");
740 unlink("$Dir/timeStamp.level0");
741 unlink("$Dir/SmbLOG.bad");
742 unlink("$Dir/SmbLOG.bad$fileExt");
743 unlink("$Dir/XferLOG.bad");
744 unlink("$Dir/XferLOG.bad$fileExt");
745 unlink("$Dir/NewFileList");
746 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.bad$fileExt");
747 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
748 print("dump failed: $stat{hostError}\n");
749 print("link $clientURI\n") if ( $needLink );
754 # Add the new backup information to the backup file
756 @Backups = $bpc->BackupInfoRead($client);
758 $Backups[$i]{num} = $lastNum;
759 $Backups[$i]{type} = $type;
760 $Backups[$i]{startTime} = $startTime;
761 $Backups[$i]{endTime} = $endTime;
762 $Backups[$i]{size} = $sizeTotal;
763 $Backups[$i]{nFiles} = $nFilesTotal;
764 $Backups[$i]{xferErrs} = $stat{xferErrCnt} || 0;
765 $Backups[$i]{xferBadFile} = $stat{xferBadFileCnt} || 0;
766 $Backups[$i]{xferBadShare} = $stat{xferBadShareCnt} || 0;
767 $Backups[$i]{nFilesExist} = $nFilesExist;
768 $Backups[$i]{sizeExist} = $sizeExist;
769 $Backups[$i]{sizeExistComp} = $sizeExistComp;
770 $Backups[$i]{tarErrs} = $tarErrs;
771 $Backups[$i]{compress} = $Conf{CompressLevel};
772 $Backups[$i]{noFill} = $type eq "full" ? 0 : 1;
773 $Backups[$i]{mangle} = 1; # name mangling always on for v1.04+
774 $bpc->BackupInfoWrite($client, @Backups);
776 unlink("$Dir/timeStamp.level0");
779 # Now remove the bad files, replacing them if possible with links to
782 foreach my $f ( $xfer->getBadFiles ) {
784 my $shareM = $bpc->fileNameEltMangle($f->{share});
785 my $fileM = $bpc->fileNameMangle($f->{file});
786 unlink("$Dir/$lastNum/$shareM/$fileM");
787 for ( $j = $i - 1 ; $j >= 0 ; $j-- ) {
789 if ( $Backups[$j]{mangle} ) {
790 $file = "$shareM/$fileM";
792 $file = "$f->{share}/$f->{file}";
794 next if ( !-f "$Dir/$Backups[$j]{num}/$file" );
795 if ( !link("$Dir/$Backups[$j]{num}/$file",
796 "$Dir/$lastNum/$shareM/$fileM") ) {
797 print(LOG $bpc->timeStamp,
798 "Unable to link $lastNum/$shareM/$fileM to"
799 . " $Backups[$j]{num}/$file\n");
801 print(LOG $bpc->timeStamp,
802 "Bad file $lastNum/$shareM/$fileM replaced by link to"
803 . " $Backups[$j]{num}/$file\n");
808 print(LOG $bpc->timeStamp,
809 "Removed bad file $lastNum/$shareM/$fileM (no older"
810 . " copy to link to)\n");
814 my $otherCount = $stat{xferErrCnt} - $stat{xferBadFileCnt}
815 - $stat{xferBadShareCnt};
816 print(LOG $bpc->timeStamp,
817 "$type backup $lastNum complete, $stat{fileCnt} files,"
818 . " $stat{byteCnt} bytes,"
819 . " $stat{xferErrCnt} xferErrs ($stat{xferBadFileCnt} bad files,"
820 . " $stat{xferBadShareCnt} bad shares, $otherCount other)\n");
822 BackupExpire($client);
824 print("$type backup complete\n");
826 ###########################################################################
828 ###########################################################################
834 print("nothing to do\n");
835 print("link $clientURI\n") if ( $needLink );
842 my $fileExt = $Conf{CompressLevel} > 0 ? ".z" : "";
845 # Children quit quietly on ALRM
847 exit(1) if ( $Pid != $$ && $signame eq "ALRM" );
850 # Ignore other signals in children
852 return if ( $Pid != $$ );
854 print(LOG $bpc->timeStamp, "cleaning up after signal $signame\n");
855 $SIG{$signame} = 'IGNORE';
856 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
857 $XferLOG->write(\"exiting after signal $signame\n");
869 unlink("$Dir/timeStamp.level0");
870 unlink("$Dir/NewFileList");
871 unlink("$Dir/XferLOG.bad");
872 unlink("$Dir/XferLOG.bad$fileExt");
873 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.bad$fileExt");
874 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
875 if ( $signame eq "INT" ) {
876 print("dump failed: aborted by user (signal=$signame)\n");
878 print("dump failed: received signal=$signame\n");
880 print("link $clientURI\n") if ( $needLink );
885 # Decide which old backups should be expired by moving them
891 my($Dir) = "$TopDir/pc/$client";
892 my(@Backups) = $bpc->BackupInfoRead($client);
893 my($cntFull, $cntIncr, $firstFull, $firstIncr, $oldestIncr, $oldestFull);
896 $cntFull = $cntIncr = 0;
897 $oldestIncr = $oldestFull = 0;
898 for ( $i = 0 ; $i < @Backups ; $i++ ) {
899 if ( $Backups[$i]{type} eq "full" ) {
900 $firstFull = $i if ( $cntFull == 0 );
903 $firstIncr = $i if ( $cntIncr == 0 );
907 $oldestIncr = (time - $Backups[$firstIncr]{startTime}) / (24 * 3600)
909 $oldestFull = (time - $Backups[$firstFull]{startTime}) / (24 * 3600)
911 if ( $cntIncr > $Conf{IncrKeepCnt}
912 || ($cntIncr > $Conf{IncrKeepCntMin}
913 && $oldestIncr > $Conf{IncrAgeMax})
914 && (@Backups <= $firstIncr + 1
915 || $Backups[$firstIncr]{noFill}
916 || !$Backups[$firstIncr + 1]{noFill}) ) {
918 # Only delete an incr backup if the Conf settings are satisfied.
919 # We also must make sure that either this backup is the most
920 # recent one, or it is not filled, or the next backup is filled.
921 # (We can't deleted a filled incr if the next backup is not
924 print(LOG $bpc->timeStamp,
925 "removing incr backup $Backups[$firstIncr]{num}\n");
926 $bpc->RmTreeDefer("$TopDir/trash",
927 "$Dir/$Backups[$firstIncr]{num}");
928 unlink("$Dir/SmbLOG.$Backups[$firstIncr]{num}")
929 if ( -f "$Dir/SmbLOG.$Backups[$firstIncr]{num}" );
930 unlink("$Dir/SmbLOG.$Backups[$firstIncr]{num}.z")
931 if ( -f "$Dir/SmbLOG.$Backups[$firstIncr]{num}.z" );
932 unlink("$Dir/XferLOG.$Backups[$firstIncr]{num}")
933 if ( -f "$Dir/XferLOG.$Backups[$firstIncr]{num}" );
934 unlink("$Dir/XferLOG.$Backups[$firstIncr]{num}.z")
935 if ( -f "$Dir/XferLOG.$Backups[$firstIncr]{num}.z" );
936 splice(@Backups, $firstIncr, 1);
937 } elsif ( ($cntFull > $Conf{FullKeepCnt}
938 || ($cntFull > $Conf{FullKeepCntMin}
939 && $oldestFull > $Conf{FullAgeMax}))
940 && (@Backups <= $firstFull + 1
941 || !$Backups[$firstFull + 1]{noFill}) ) {
943 # Only delete a full backup if the Conf settings are satisfied.
944 # We also must make sure that either this backup is the most
945 # recent one, or the next backup is filled.
946 # (We can't deleted a full backup if the next backup is not
949 print(LOG $bpc->timeStamp,
950 "removing full backup $Backups[$firstFull]{num}\n");
951 $bpc->RmTreeDefer("$TopDir/trash",
952 "$Dir/$Backups[$firstFull]{num}");
953 unlink("$Dir/SmbLOG.$Backups[$firstFull]{num}")
954 if ( -f "$Dir/SmbLOG.$Backups[$firstFull]{num}" );
955 unlink("$Dir/SmbLOG.$Backups[$firstFull]{num}.z")
956 if ( -f "$Dir/SmbLOG.$Backups[$firstFull]{num}.z" );
957 unlink("$Dir/XferLOG.$Backups[$firstFull]{num}")
958 if ( -f "$Dir/XferLOG.$Backups[$firstFull]{num}" );
959 unlink("$Dir/XferLOG.$Backups[$firstFull]{num}.z")
960 if ( -f "$Dir/XferLOG.$Backups[$firstFull]{num}.z" );
961 splice(@Backups, $firstFull, 1);
966 $bpc->BackupInfoWrite($client, @Backups);
971 my($hostIP, $host) = @_;
972 return if ( $hostIP eq $host && !$Conf{FixedIPNetBiosNameCheck}
973 || $Conf{NmbLookupCmd} eq "" );
974 my($netBiosHost, $netBiosUser) = $bpc->NetBiosInfoGet($hostIP);
975 return "host $host has mismatching netbios name $netBiosHost"
976 if ( $netBiosHost ne $host );
981 # The Xfer method might tell us from time to time about processes
982 # it forks. We tell BackupPC about this (for status displays) and
983 # keep track of the pids in case we cancel the backup
988 @xferPid = grep(/./, @xferPid);
989 return if ( !@xferPid && $tarPid < 0 );
991 push(@pids, $tarPid) if ( $tarPid > 0 );
992 my $str = join(",", @pids);
993 $XferLOG->write(\"Xfer PIDs are now $str\n") if ( defined($XferLOG) );
994 print("xferPids $str\n");
998 # Run an optional pre- or post-dump command
1004 return if ( !defined($Conf{$type}) );
1010 user => $Hosts->{$client}{user},
1011 moreUsers => $Hosts->{$client}{moreUsers},
1012 share => $ShareNames->[0],
1013 shares => $ShareNames,
1014 XferMethod => $Conf{XferMethod},
1015 sshPath => $Conf{SshPath},
1017 XferLOG => $XferLOG,
1019 xferOK => $stat{xferOK} || 0,
1020 hostError => $stat{hostError},
1023 my $cmd = $bpc->cmdVarSubstitute($Conf{$type}, $vars);
1024 $XferLOG->write(\"Executing $type: @$cmd\n");
1026 # Run the user's command, dumping the stdout/stderr into the
1027 # Xfer log file. Also supply the optional $vars and %Conf in
1028 # case the command is really perl code instead of a shell
1031 $bpc->cmdSystemOrEval($cmd,
1033 $XferLOG->write(\$_[0]);