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) 2001-2003 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 2.1.0_CVS, released 3 Jul 2003.
75 # See http://backuppc.sourceforge.net.
77 #========================================================================
81 use lib "/usr/local/BackupPC/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("Exiting because CheckHostAlive($hostIP) failed\n")
133 if ( $Conf{NmbLookupCmd} eq "" ) {
134 print("Exiting because \$Conf{NmbLookupCmd} is empty\n")
138 ($client, $user) = $bpc->NetBiosInfoGet($hostIP);
139 if ( $client !~ /^([\w\.\s-]+)$/ ) {
140 print("Exiting because NetBiosInfoGet($hostIP) returned '$client',"
141 . " an invalid host name\n")
145 $Hosts = $bpc->HostInfoRead($client);
148 $Hosts = $bpc->HostInfoRead($client);
150 if ( !defined($Hosts->{$client}) ) {
151 print("Exiting because host $client does not exist in the hosts file\n")
156 my $Dir = "$TopDir/pc/$client";
161 # Re-read config file, so we can include the PC-specific config
163 $clientURI = $bpc->uriEsc($client);
164 if ( defined(my $error = $bpc->ConfigRead($client)) ) {
165 print("dump failed: Can't read PC's config file: $error\n");
168 %Conf = $bpc->Conf();
171 # Catch various signals
173 $SIG{INT} = \&catch_signal;
174 $SIG{ALRM} = \&catch_signal;
175 $SIG{TERM} = \&catch_signal;
176 $SIG{PIPE} = \&catch_signal;
177 $SIG{STOP} = \&catch_signal;
178 $SIG{TSTP} = \&catch_signal;
179 $SIG{TTIN} = \&catch_signal;
183 # Make sure we eventually timeout if there is no activity from
184 # the data transport program.
186 alarm($Conf{ClientTimeout});
188 mkpath($Dir, 0, 0777) if ( !-d $Dir );
189 if ( !-f "$Dir/LOCK" ) {
190 open(LOCK, ">", "$Dir/LOCK") && close(LOCK);
192 open(LOG, ">>", "$Dir/LOG");
193 select(LOG); $| = 1; select(STDOUT);
196 # For the -e option we just expire backups and quit
199 BackupExpire($client);
205 # In the non-DHCP case, make sure the host can be looked up
206 # via NS, or otherwise find the IP address via NetBios.
208 if ( $Conf{ClientNameAlias} ne "" ) {
209 $host = $Conf{ClientNameAlias};
213 if ( !defined(gethostbyname($host)) ) {
215 # Ok, NS doesn't know about it. Maybe it is a NetBios name
218 print("Name server doesn't know about $host; trying NetBios\n")
220 if ( !defined($hostIP = $bpc->NetBiosHostIPFind($host)) ) {
221 print(LOG $bpc->timeStamp, "Can't find host $host via netbios\n");
222 print("host not found\n");
230 ###########################################################################
231 # Figure out what to do and do it
232 ###########################################################################
235 # See if we should skip this host during a certain range
238 my $err = $bpc->ServerConnect($Conf{ServerHost}, $Conf{ServerPort});
240 print("Can't connect to server ($err)\n");
241 print(LOG $bpc->timeStamp, "Can't connect to server ($err)\n");
244 my $reply = $bpc->ServerMesg("status host($clientURI)");
245 $reply = $1 if ( $reply =~ /(.*)/s );
248 $bpc->ServerDisconnect();
251 # For DHCP tell BackupPC which host this is
254 if ( $StatusHost{activeJob} ) {
255 # oops, something is already running for this host
256 print("Exiting because backup is already running for $client\n")
260 print("DHCP $hostIP $clientURI\n");
263 my($needLink, @Backups, $type, $lastBkupNum, $lastFullBkupNum);
268 if ( $Conf{FullPeriod} == -1 && !$opts{f} && !$opts{i}
269 || $Conf{FullPeriod} == -2 ) {
270 NothingToDo($needLink);
273 if ( !$opts{i} && !$opts{f} && $Conf{BlackoutGoodCnt} >= 0
274 && $StatusHost{aliveCnt} >= $Conf{BlackoutGoodCnt} ) {
275 my($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) = localtime(time);
276 my($currHours) = $hour + $min / 60 + $sec / 3600;
277 if ( $Conf{BlackoutHourBegin} <= $currHours
278 && $currHours <= $Conf{BlackoutHourEnd}
279 && grep($_ == $wday, @{$Conf{BlackoutWeekDays}}) ) {
280 # print(LOG $bpc->timeStamp, "skipping because of blackout"
281 # . " (alive $StatusHost{aliveCnt} times)\n");
282 NothingToDo($needLink);
286 if ( !$opts{i} && !$opts{f} && $StatusHost{backoffTime} > time ) {
287 printf(LOG "%sskipping because of user requested delay (%.1f hours left)",
288 $bpc->timeStamp, ($StatusHost{backoffTime} - time) / 3600);
289 NothingToDo($needLink);
293 # Now see if there are any old backups we should delete
295 BackupExpire($client);
298 # Read Backup information, and find times of the most recent full and
299 # incremental backups
301 @Backups = $bpc->BackupInfoRead($client);
302 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
303 $needLink = 1 if ( $Backups[$i]{nFilesNew} eq ""
304 || -f "$Dir/NewFileList.$Backups[$i]{num}" );
305 $lastBkupNum = $Backups[$i]{num};
306 if ( $Backups[$i]{type} eq "full" ) {
307 if ( $lastFull < $Backups[$i]{startTime} ) {
308 $lastFull = $Backups[$i]{startTime};
309 $lastFullBkupNum = $Backups[$i]{num};
311 } elsif ( $Backups[$i]{type} eq "incr" ) {
312 $lastIncr = $Backups[$i]{startTime}
313 if ( $lastIncr < $Backups[$i]{startTime} );
314 } elsif ( $Backups[$i]{type} eq "partial" ) {
320 # Decide whether we do nothing, or a full or incremental backup.
324 || (!$opts{i} && (time - $lastFull > $Conf{FullPeriod} * 24*3600
325 && time - $lastIncr > $Conf{IncrPeriod} * 24*3600)) ) {
327 } elsif ( $opts{i} || (time - $lastIncr > $Conf{IncrPeriod} * 24*3600
328 && time - $lastFull > $Conf{IncrPeriod} * 24*3600) ) {
331 NothingToDo($needLink);
335 # Check if $host is alive
337 my $delay = $bpc->CheckHostAlive($hostIP);
339 print(LOG $bpc->timeStamp, "no ping response\n");
340 print("no ping response\n");
341 print("link $clientURI\n") if ( $needLink );
343 } elsif ( $delay > $Conf{PingMaxMsec} ) {
344 printf(LOG "%sping too slow: %.4gmsec\n", $bpc->timeStamp, $delay);
345 printf("ping too slow: %.4gmsec (threshold is %gmsec)\n",
346 $delay, $Conf{PingMaxMsec});
347 print("link $clientURI\n") if ( $needLink );
352 # Make sure it is really the machine we expect (only for fixed addresses,
353 # since we got the DHCP address above).
355 if ( !$opts{d} && (my $errMsg = CorrectHostCheck($hostIP, $host)) ) {
356 print(LOG $bpc->timeStamp, "dump failed: $errMsg\n");
357 print("dump failed: $errMsg\n");
359 } elsif ( $opts{d} ) {
360 print(LOG $bpc->timeStamp, "$host is dhcp $hostIP, user is $user\n");
364 # Get a clean directory $Dir/new
366 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
369 # Setup file extension for compression and open XferLOG output file
371 $Conf{CompressLevel} = 0 if ( !BackupPC::FileZIO->compOk );
372 my $fileExt = $Conf{CompressLevel} > 0 ? ".z" : "";
373 my $XferLOG = BackupPC::FileZIO->open("$Dir/XferLOG$fileExt", 1,
374 $Conf{CompressLevel});
375 if ( !defined($XferLOG) ) {
376 print(LOG $bpc->timeStamp, "dump failed: unable to open/create"
377 . " $Dir/XferLOG$fileExt\n");
378 print("dump failed: unable to open/create $Dir/XferLOG$fileExt\n");
381 $XferLOG->writeTeeStdout(1) if ( $opts{v} );
382 unlink("$Dir/NewFileList");
383 my $startTime = time();
388 my $sizeExistComp = 0;
391 my($logMsg, %stat, $xfer, $ShareNames, $noFilesErr);
394 if ( $Conf{XferMethod} eq "tar" ) {
395 $ShareNames = $Conf{TarShareName};
396 } elsif ( $Conf{XferMethod} eq "rsync" || $Conf{XferMethod} eq "rsyncd" ) {
397 $ShareNames = $Conf{RsyncShareName};
399 $ShareNames = $Conf{SmbShareName};
402 $ShareNames = [ $ShareNames ] unless ref($ShareNames) eq "ARRAY";
405 # Run an optional pre-dump command
407 UserCommandRun("DumpPreUserCmd");
411 # Now backup each of the shares
413 for my $shareName ( @$ShareNames ) {
416 $stat{xferOK} = $stat{hostAbort} = undef;
417 $stat{hostError} = $stat{lastOutputLine} = undef;
418 if ( -d "$Dir/new/$shareName" ) {
419 print(LOG $bpc->timeStamp,
420 "unexpected repeated share name $shareName skipped\n");
424 if ( $Conf{XferMethod} eq "tar" ) {
426 # Use tar (eg: tar/ssh) as the transport program.
428 $xfer = BackupPC::Xfer::Tar->new($bpc);
429 } elsif ( $Conf{XferMethod} eq "rsync" || $Conf{XferMethod} eq "rsyncd" ) {
431 # Use rsync as the transport program.
433 if ( !defined($xfer = BackupPC::Xfer::Rsync->new($bpc)) ) {
434 my $errStr = BackupPC::Xfer::Rsync::errStr;
435 print(LOG $bpc->timeStamp, "dump failed: $errStr\n");
436 print("dump failed: $errStr\n");
437 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
442 # Default is to use smbclient (smb) as the transport program.
444 $xfer = BackupPC::Xfer::Smb->new($bpc);
447 my $useTar = $xfer->useTar;
451 # This xfer method outputs a tar format file, so we start a
452 # BackupPC_tarExtract to extract the data.
454 # Create a socketpair to connect the Xfer method to BackupPC_tarExtract
455 # WH is the write handle for writing, provided to the transport
456 # program, and RH is the other end of the socket for reading,
457 # provided to BackupPC_tarExtract.
459 if ( socketpair(RH, WH, AF_UNIX, SOCK_STREAM, PF_UNSPEC) ) {
460 shutdown(RH, 1); # no writing to this socket
461 shutdown(WH, 0); # no reading from this socket
462 setsockopt(RH, SOL_SOCKET, SO_RCVBUF, 8 * 65536);
463 setsockopt(WH, SOL_SOCKET, SO_SNDBUF, 8 * 65536);
466 # Default to pipe() if socketpair() doesn't work.
472 # fork a child for BackupPC_tarExtract. TAR is a file handle
473 # on which we (the parent) read the stdout & stderr from
474 # BackupPC_tarExtract.
476 if ( !defined($tarPid = open(TAR, "-|")) ) {
477 print(LOG $bpc->timeStamp, "can't fork to run tar\n");
478 print("can't fork to run tar\n");
486 # This is the tar child. Close the write end of the pipe,
487 # clone STDERR to STDOUT, clone STDIN from RH, and then
488 # exec BackupPC_tarExtract.
493 open(STDERR, ">&STDOUT");
496 exec("$BinDir/BackupPC_tarExtract", $client, $shareName,
497 $Conf{CompressLevel});
498 print(LOG $bpc->timeStamp,
499 "can't exec $BinDir/BackupPC_tarExtract\n");
502 } elsif ( !defined($newFilesFH) ) {
504 # We need to create the NewFileList output file
507 open(NEW_FILES, ">", "$TopDir/pc/$client/NewFileList")
508 || die("can't open $TopDir/pc/$client/NewFileList");
509 $newFilesFH = *NEW_FILES;
514 # Run the transport program
520 shareName => $shareName,
524 newFilesFH => $newFilesFH,
527 lastFull => $lastFull,
528 lastBkupNum => $lastBkupNum,
529 lastFullBkupNum => $lastFullBkupNum,
530 backups => \@Backups,
531 compress => $Conf{CompressLevel},
532 XferMethod => $Conf{XferMethod},
533 pidHandler => \&pidHandler,
536 if ( !defined($logMsg = $xfer->start()) ) {
537 print(LOG $bpc->timeStamp, "xfer start failed: ", $xfer->errStr, "\n");
538 print("dump failed: ", $xfer->errStr, "\n");
539 print("link $clientURI\n") if ( $needLink );
541 # kill off the tar process, first nicely then forcefully
553 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
557 @xferPid = $xfer->xferPid;
561 # The parent must close both handles on the pipe since the children
562 # are using these handles now.
567 print(LOG $bpc->timeStamp, $logMsg, "\n");
568 print("started $type dump, share=$shareName\n");
570 pidHandler(@xferPid);
574 # Parse the output of the transfer program and BackupPC_tarExtract
575 # while they run. Since we might be reading from two or more children
578 my($FDread, $tarOut, $mesg);
579 vec($FDread, fileno(TAR), 1) = 1 if ( $useTar );
580 $xfer->setSelectMask(\$FDread);
584 last if ( $FDread =~ /^\0*$/ );
585 select(my $rout = $FDread, undef, $ein, undef);
587 if ( vec($rout, fileno(TAR), 1) ) {
588 if ( sysread(TAR, $mesg, 8192) <= 0 ) {
589 vec($FDread, fileno(TAR), 1) = 0;
595 while ( $tarOut =~ /(.*?)[\n\r]+(.*)/s ) {
598 $XferLOG->write(\"tarExtract: $_\n");
599 if ( /^Done: (\d+) errors, (\d+) filesExist, (\d+) sizeExist, (\d+) sizeExistComp, (\d+) filesTotal, (\d+) sizeTotal/ ) {
603 $sizeExistComp += $4;
609 last if ( !$xfer->readOutput(\$FDread, $rout) );
610 while ( my $str = $xfer->logMsgGet ) {
611 print(LOG $bpc->timeStamp, "xfer: $str\n");
613 if ( $xfer->getStats->{fileCnt} == 1 ) {
615 # Make sure it is still the machine we expect. We do this while
616 # the transfer is running to avoid a potential race condition if
617 # the ip address was reassigned by dhcp just before we started
620 if ( my $errMsg = CorrectHostCheck($hostIP, $host) ) {
621 $stat{hostError} = $errMsg if ( $stat{hostError} eq "" );
628 # otherwise the xfer module does everything for us
630 my @results = $xfer->run();
631 $tarErrs += $results[0];
632 $nFilesExist += $results[1];
633 $sizeExist += $results[2];
634 $sizeExistComp += $results[3];
635 $nFilesTotal += $results[4];
636 $sizeTotal += $results[5];
640 # Merge the xfer status (need to accumulate counts)
642 my $newStat = $xfer->getStats;
643 if ( $newStat->{fileCnt} == 0 ) {
644 $noFilesErr ||= "No files dumped for share $shareName";
646 foreach my $k ( (keys(%stat), keys(%$newStat)) ) {
647 next if ( !defined($newStat->{$k}) );
648 if ( $k =~ /Cnt$/ ) {
649 $stat{$k} += $newStat->{$k};
650 delete($newStat->{$k});
653 if ( !defined($stat{$k}) ) {
654 $stat{$k} = $newStat->{$k};
655 delete($newStat->{$k});
659 $stat{xferOK} = 0 if ( $stat{hostError} || $stat{hostAbort} );
660 if ( !$stat{xferOK} ) {
662 # kill off the tranfer program, first nicely then forcefully
670 # kill off the tar process, first nicely then forcefully
678 # don't do any more shares on this host
685 # If any share had zero files then consider the dump bad
687 if ( $stat{hostError} eq ""
688 && length($noFilesErr) && $Conf{BackupZeroFilesIsFatal} ) {
689 $stat{hostError} = $noFilesErr;
694 # Do one last check to make sure it is still the machine we expect.
696 if ( $stat{xferOK} && (my $errMsg = CorrectHostCheck($hostIP, $host)) ) {
697 $stat{hostError} = $errMsg;
701 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
703 close($newFilesFH) if ( defined($newFilesFH) );
705 my $endTime = time();
708 # If the dump failed, clean up
710 if ( !$stat{xferOK} ) {
712 # wait a short while and see if the system is still alive
714 $stat{hostError} = $stat{lastOutputLine} if ( $stat{hostError} eq "" );
715 if ( $stat{hostError} ) {
716 print(LOG $bpc->timeStamp,
717 "Got fatal error during xfer ($stat{hostError})\n");
720 if ( $bpc->CheckHostAlive($hostIP) < 0 ) {
721 $stat{hostAbort} = 1;
723 if ( $stat{hostAbort} ) {
724 $stat{hostError} = "lost network connection during backup";
726 print(LOG $bpc->timeStamp, "Dump aborted ($stat{hostError})\n");
734 my $newNum = BackupSave();
736 my $otherCount = $stat{xferErrCnt} - $stat{xferBadFileCnt}
737 - $stat{xferBadShareCnt};
738 print(LOG $bpc->timeStamp,
739 "$type backup $newNum complete, $stat{fileCnt} files,"
740 . " $stat{byteCnt} bytes,"
741 . " $stat{xferErrCnt} xferErrs ($stat{xferBadFileCnt} bad files,"
742 . " $stat{xferBadShareCnt} bad shares, $otherCount other)\n");
744 BackupExpire($client);
746 print("$type backup complete\n");
748 ###########################################################################
750 ###########################################################################
756 print("nothing to do\n");
757 print("link $clientURI\n") if ( $needLink );
766 # Children quit quietly on ALRM
768 exit(1) if ( $Pid != $$ && $signame eq "ALRM" );
771 # Ignore other signals in children
773 return if ( $Pid != $$ );
775 print(LOG $bpc->timeStamp, "cleaning up after signal $signame\n");
776 $SIG{$signame} = 'IGNORE';
777 UserCommandRun("DumpPostUserCmd") if ( $NeedPostCmd );
778 $XferLOG->write(\"exiting after signal $signame\n");
790 if ( $signame eq "INT" ) {
791 $stat{hostError} = "aborted by user (signal=$signame)";
793 $stat{hostError} = "received signal=$signame";
798 sub BackupFailCleanup
800 my $fileExt = $Conf{CompressLevel} > 0 ? ".z" : "";
803 || ($nFilesTotal == 0 && $xfer->getStats->{fileCnt} == 0) ) {
805 # No point in saving this dump; get rid of eveything.
807 unlink("$Dir/timeStamp.level0");
808 unlink("$Dir/SmbLOG.bad");
809 unlink("$Dir/SmbLOG.bad$fileExt");
810 unlink("$Dir/XferLOG.bad");
811 unlink("$Dir/XferLOG.bad$fileExt");
812 unlink("$Dir/NewFileList");
813 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.bad$fileExt");
814 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/new") if ( -d "$Dir/new" );
815 print("dump failed: $stat{hostError}\n");
816 print("link $clientURI\n") if ( $needLink );
820 # Ok, now we should save this as a partial dump
823 my $newNum = BackupSave();
824 print("dump failed: $stat{hostError}\n");
825 print("link $clientURI\n") if ( $needLink );
826 print(LOG $bpc->timeStamp, "Saved partial dump $newNum\n");
831 # Decide which old backups should be expired by moving them
837 my($Dir) = "$TopDir/pc/$client";
838 my(@Backups) = $bpc->BackupInfoRead($client);
839 my($cntFull, $cntIncr, $firstFull, $firstIncr, $oldestIncr, $oldestFull);
842 $cntFull = $cntIncr = 0;
843 $oldestIncr = $oldestFull = 0;
844 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
845 if ( $Backups[$i]{type} eq "full" ) {
846 $firstFull = $i if ( $cntFull == 0 );
849 $firstIncr = $i if ( $cntIncr == 0 );
853 $oldestIncr = (time - $Backups[$firstIncr]{startTime}) / (24 * 3600)
855 $oldestFull = (time - $Backups[$firstFull]{startTime}) / (24 * 3600)
857 if ( $cntIncr > $Conf{IncrKeepCnt}
858 || ($cntIncr > $Conf{IncrKeepCntMin}
859 && $oldestIncr > $Conf{IncrAgeMax})
860 && (@Backups <= $firstIncr + 1
861 || $Backups[$firstIncr]{noFill}
862 || !$Backups[$firstIncr + 1]{noFill}) ) {
864 # Only delete an incr backup if the Conf settings are satisfied.
865 # We also must make sure that either this backup is the most
866 # recent one, or it is not filled, or the next backup is filled.
867 # (We can't deleted a filled incr if the next backup is not
870 print(LOG $bpc->timeStamp,
871 "removing incr backup $Backups[$firstIncr]{num}\n");
872 BackupRemove($client, \@Backups, $firstIncr);
873 } elsif ( ($cntFull > $Conf{FullKeepCnt}
874 || ($cntFull > $Conf{FullKeepCntMin}
875 && $oldestFull > $Conf{FullAgeMax}))
876 && (@Backups <= $firstFull + 1
877 || !$Backups[$firstFull + 1]{noFill}) ) {
879 # Only delete a full backup if the Conf settings are satisfied.
880 # We also must make sure that either this backup is the most
881 # recent one, or the next backup is filled.
882 # (We can't deleted a full backup if the next backup is not
885 print(LOG $bpc->timeStamp,
886 "removing full backup $Backups[$firstFull]{num}\n");
887 BackupRemove($client, \@Backups, $firstFull);
892 $bpc->BackupInfoWrite($client, @Backups);
896 # Removes any partial backups
898 sub BackupPartialRemove
900 my($client, $Backups) = @_;
902 for ( my $i = @$Backups - 1 ; $i >= 0 ; $i-- ) {
903 next if ( $Backups->[$i]{type} ne "partial" );
904 BackupRemove($client, $Backups, $i);
910 my @Backups = $bpc->BackupInfoRead($client);
914 # Since we got a good backup we should remove any partial dumps
915 # (the new backup might also be a partial, but that's ok).
917 BackupPartialRemove($client, \@Backups);
920 # Number the new backup
922 for ( my $i = 0 ; $i < @Backups ; $i++ ) {
923 $num = $Backups[$i]{num} if ( $num < $Backups[$i]{num} );
926 $bpc->RmTreeDefer("$TopDir/trash", "$Dir/$num")
927 if ( -d "$Dir/$num" );
928 if ( !rename("$Dir/new", "$Dir/$num") ) {
929 print(LOG $bpc->timeStamp,
930 "Rename $Dir/new -> $Dir/$num failed\n");
933 rename("$Dir/XferLOG$fileExt", "$Dir/XferLOG.$num$fileExt");
934 rename("$Dir/NewFileList", "$Dir/NewFileList.$num");
937 # Add the new backup information to the backup file
940 $Backups[$i]{num} = $num;
941 $Backups[$i]{type} = $type;
942 $Backups[$i]{startTime} = $startTime;
943 $Backups[$i]{endTime} = $endTime;
944 $Backups[$i]{size} = $sizeTotal;
945 $Backups[$i]{nFiles} = $nFilesTotal;
946 $Backups[$i]{xferErrs} = $stat{xferErrCnt} || 0;
947 $Backups[$i]{xferBadFile} = $stat{xferBadFileCnt} || 0;
948 $Backups[$i]{xferBadShare} = $stat{xferBadShareCnt} || 0;
949 $Backups[$i]{nFilesExist} = $nFilesExist;
950 $Backups[$i]{sizeExist} = $sizeExist;
951 $Backups[$i]{sizeExistComp} = $sizeExistComp;
952 $Backups[$i]{tarErrs} = $tarErrs;
953 $Backups[$i]{compress} = $Conf{CompressLevel};
954 $Backups[$i]{noFill} = $type eq "incr" ? 1 : 0;
955 $Backups[$i]{level} = $type eq "incr" ? 1 : 0;
956 $Backups[$i]{mangle} = 1; # name mangling always on for v1.04+
957 $bpc->BackupInfoWrite($client, @Backups);
959 unlink("$Dir/timeStamp.level0");
962 # Now remove the bad files, replacing them if possible with links to
965 foreach my $f ( $xfer->getBadFiles ) {
967 my $shareM = $bpc->fileNameEltMangle($f->{share});
968 my $fileM = $bpc->fileNameMangle($f->{file});
969 unlink("$Dir/$num/$shareM/$fileM");
970 for ( $j = $i - 1 ; $j >= 0 ; $j-- ) {
972 if ( $Backups[$j]{mangle} ) {
973 $file = "$shareM/$fileM";
975 $file = "$f->{share}/$f->{file}";
977 next if ( !-f "$Dir/$Backups[$j]{num}/$file" );
978 if ( !link("$Dir/$Backups[$j]{num}/$file",
979 "$Dir/$num/$shareM/$fileM") ) {
980 print(LOG $bpc->timeStamp,
981 "Unable to link $num/$shareM/$fileM to"
982 . " $Backups[$j]{num}/$file\n");
984 print(LOG $bpc->timeStamp,
985 "Bad file $num/$shareM/$fileM replaced by link to"
986 . " $Backups[$j]{num}/$file\n");
991 print(LOG $bpc->timeStamp,
992 "Removed bad file $num/$shareM/$fileM (no older"
993 . " copy to link to)\n");
1000 # Removes a specific backup
1004 my($client, $Backups, $idx) = @_;
1005 my($Dir) = "$TopDir/pc/$client";
1007 $bpc->RmTreeDefer("$TopDir/trash",
1008 "$Dir/$Backups->[$idx]{num}");
1009 unlink("$Dir/SmbLOG.$Backups->[$idx]{num}")
1010 if ( -f "$Dir/SmbLOG.$Backups->[$idx]{num}" );
1011 unlink("$Dir/SmbLOG.$Backups->[$idx]{num}.z")
1012 if ( -f "$Dir/SmbLOG.$Backups->[$idx]{num}.z" );
1013 unlink("$Dir/XferLOG.$Backups->[$idx]{num}")
1014 if ( -f "$Dir/XferLOG.$Backups->[$idx]{num}" );
1015 unlink("$Dir/XferLOG.$Backups->[$idx]{num}.z")
1016 if ( -f "$Dir/XferLOG.$Backups->[$idx]{num}.z" );
1017 splice(@{$Backups}, $idx, 1);
1020 sub CorrectHostCheck
1022 my($hostIP, $host) = @_;
1023 return if ( $hostIP eq $host && !$Conf{FixedIPNetBiosNameCheck}
1024 || $Conf{NmbLookupCmd} eq "" );
1025 my($netBiosHost, $netBiosUser) = $bpc->NetBiosInfoGet($hostIP);
1026 return "host $host has mismatching netbios name $netBiosHost"
1027 if ( $netBiosHost ne $host );
1032 # The Xfer method might tell us from time to time about processes
1033 # it forks. We tell BackupPC about this (for status displays) and
1034 # keep track of the pids in case we cancel the backup
1039 @xferPid = grep(/./, @xferPid);
1040 return if ( !@xferPid && $tarPid < 0 );
1041 my @pids = @xferPid;
1042 push(@pids, $tarPid) if ( $tarPid > 0 );
1043 my $str = join(",", @pids);
1044 $XferLOG->write(\"Xfer PIDs are now $str\n") if ( defined($XferLOG) );
1045 print("xferPids $str\n");
1049 # Run an optional pre- or post-dump command
1055 return if ( !defined($Conf{$type}) );
1061 user => $Hosts->{$client}{user},
1062 moreUsers => $Hosts->{$client}{moreUsers},
1063 share => $ShareNames->[0],
1064 shares => $ShareNames,
1065 XferMethod => $Conf{XferMethod},
1066 sshPath => $Conf{SshPath},
1068 XferLOG => $XferLOG,
1070 xferOK => $stat{xferOK} || 0,
1071 hostError => $stat{hostError},
1074 my $cmd = $bpc->cmdVarSubstitute($Conf{$type}, $vars);
1075 $XferLOG->write(\"Executing $type: @$cmd\n");
1077 # Run the user's command, dumping the stdout/stderr into the
1078 # Xfer log file. Also supply the optional $vars and %Conf in
1079 # case the command is really perl code instead of a shell
1082 $bpc->cmdSystemOrEval($cmd,
1084 $XferLOG->write(\$_[0]);