X-Git-Url: http://git.rot13.org/?p=BackupPC.git;a=blobdiff_plain;f=bin%2FBackupPC;h=c6fc7d2a37d88bd1850514e26041a1bd7ddebab7;hp=2053aa5bf1894512ee5edf1ddca3eeb822034246;hb=38abb9a20f4f9562df117185570646049ce126fb;hpb=16755c17628b28a58d75663d7541036344826961 diff --git a/bin/BackupPC b/bin/BackupPC index 2053aa5..c6fc7d2 100755 --- a/bin/BackupPC +++ b/bin/BackupPC @@ -1,4 +1,4 @@ -#!/bin/perl +#!/usr/bin/perl #============================================================= -*-perl-*- # # BackupPC: Main program for PC backups. @@ -29,7 +29,7 @@ # Craig Barratt # # COPYRIGHT -# Copyright (C) 2001-2003 Craig Barratt +# Copyright (C) 2001-2009 Craig Barratt # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by @@ -47,7 +47,7 @@ # #======================================================================== # -# Version 3.0.0, released 28 Jan 2007. +# Version 3.2.0, released 31 Jul 2010. # # See http://backuppc.sourceforge.net. # @@ -59,7 +59,7 @@ use vars qw(%Status %Info $Hosts); use lib "/usr/local/BackupPC/lib"; use BackupPC::Lib; use BackupPC::FileZIO; -use Encode; +use Encode qw/decode_utf8/; use File::Path; use Data::Dumper; @@ -248,14 +248,16 @@ sub Main_Initialize umask($Conf{UmaskMode}); # - # Check for another running process, check that PASSWD is set and - # verify executables are configured correctly. + # Check for another running process, verify executables are configured + # correctly and make sure $TopDir is on a file system that supports + # hardlinks. # if ( $Info{pid} ne "" && kill(0, $Info{pid}) ) { print(STDERR $bpc->timeStamp, "Another BackupPC is running (pid $Info{pid}); quitting...\n"); exit(1); } + foreach my $progName ( qw(SmbClientPath NmbLookupPath PingPath DfPath SendmailPath SshPath) ) { next if ( $Conf{$progName} eq "" || -x $Conf{$progName} ); @@ -265,6 +267,17 @@ sub Main_Initialize exit(1); } + if ( !$bpc->HardlinkTest("$TopDir/pc", "$TopDir/cpool") ) { + print(STDERR $bpc->timeStamp, "Can't create a test hardlink between a file" + . " in $TopDir/pc and $TopDir/cpool. Either these are different" + . " file systems, or this file system doesn't support hardlinks," + . " or these directories don't exist, or there is a permissions" + . " problem, or the file system is out of inodes or full. Use" + . " df, df -i, and ls -ld to check each of these possibilities." + . " Quitting...\n"); + exit(1); + } + if ( $opts{d} ) { # # daemonize by forking; more robust method per: @@ -272,7 +285,7 @@ sub Main_Initialize # my $pid; defined($pid = fork) or die("Can't fork: $!"); - exit if( $pid ); # parent exits + exit if ( $pid ); # parent exits POSIX::setsid(); defined($pid = fork) or die("Can't fork: $!"); @@ -396,7 +409,6 @@ sub Main_TryToRun_nightly $CmdQueueOn{$bpc->trashJob} = 1; } if ( $RunNightlyWhenIdle == 1 ) { - # # Queue multiple nightly jobs based on the configuration # @@ -464,7 +476,6 @@ sub Main_TryToRun_nightly $start = $start0 + int(($end - $start0) * ($i + 1) / $Conf{MaxBackupPCNightlyJobs}); push(@$cmd, $start - 1); - my $job = $bpc->adminJob($i); unshift(@CmdQueue, { host => $job, @@ -522,6 +533,8 @@ sub Main_TryToRun_CmdQueue } if ( !$pid ) { setpgrp 0,0; + $ENV{BPC_REQUSER} = $req->{user}; + POSIX::nice($Conf{CmdQueueNice}) if ( $Conf{CmdQueueNice} ); exec(@$cmd); print(LOG $bpc->timeStamp, "can't exec @$cmd for $host\n"); exit(0); @@ -642,8 +655,6 @@ sub Main_TryToRun_Bg_or_User_Queue push(@deferUserQueue, $req); next; } - push(@args, $req->{doFull} ? "-f" : "-i") - if (( !$req->{restore} ) && ( !$req->{archive} )); $UserQueueOn{$req->{host}} = 0; } elsif ( $nJobs < $Conf{MaxBackups} && (@CmdQueue + $nJobs) @@ -679,7 +690,11 @@ sub Main_TryToRun_Bg_or_User_Queue } else { $progName = "BackupPC_dump"; $type = "backup"; - push(@args, "-d") if ( $req->{dhcp} ); + push(@args, "-I") if ( $req->{backupType} eq "autoIncr" ); + push(@args, "-F") if ( $req->{backupType} eq "autoFull" ); + push(@args, "-i") if ( $req->{backupType} eq "doIncr" ); + push(@args, "-f") if ( $req->{backupType} eq "doFull" ); + push(@args, "-d") if ( $req->{backupType} eq "dhcpPoll" ); push(@args, "-e") if ( $req->{dumpExpire} ); push(@args, $host); } @@ -853,7 +868,12 @@ sub Main_Check_Timeout # Remember to run the nightly script when the next CmdQueue # job is done. # - $RunNightlyWhenIdle = 1; + if ( $RunNightlyWhenIdle == 2 ) { + print(LOG $bpc->timeStamp, "BackupPC_nightly is still running after 24 hours!!" + . " You should adjust the config settings; Skipping this run\n"); + } else { + $RunNightlyWhenIdle = 1; + } } # # Write out the current status and then queue all the PCs @@ -943,6 +963,8 @@ sub Main_Check_Job_Messages if ( $Status{$host}{dhcpCheckCnt} > 0 ); } elsif ( $mesg =~ /^xferPids (.*)/ ) { $Jobs{$host}{xferPid} = $1; + } elsif ( $mesg =~ /^completionPercent (.*)/ ) { + $Jobs{$host}{completionPercent} = $1; } elsif ( $mesg =~ /^started_restore/ ) { $Jobs{$host}{type} = "restore"; print(LOG $bpc->timeStamp, @@ -1328,39 +1350,65 @@ sub Main_Check_Client_Messages } elsif ( $cmd =~ /^BackupPC_nightly run$/ ) { $RunNightlyWhenIdle = 1; } elsif ( $cmd =~ /^backup (\S+)\s+(\S+)\s+(\S+)\s+(\S+)/ ) { - my $hostIP = $1; - $host = $2; - my $user = $3; - my $doFull = $4; - $host = $bpc->uriUnesc($host); - $hostIP = $bpc->uriUnesc($hostIP); - if ( !defined($Status{$host}) ) { + my $hostIP = $1; + $host = $2; + my $user = $3; + my $backupType = $4; + $host = $bpc->uriUnesc($host); + $hostIP = $bpc->uriUnesc($hostIP); + if ( !defined($Hosts->{$host}) ) { print(LOG $bpc->timeStamp, "User $user requested backup of unknown host" . " $host\n"); $reply = "error: unknown host $host"; } else { - print(LOG $bpc->timeStamp, - "User $user requested backup of $host" - . " ($hostIP)\n"); - if ( $BgQueueOn{$hostIP} ) { - @BgQueue = grep($_->{host} ne $hostIP, @BgQueue); - $BgQueueOn{$hostIP} = 0; - } - if ( $UserQueueOn{$hostIP} ) { - @UserQueue = grep($_->{host} ne $hostIP, @UserQueue); - $UserQueueOn{$hostIP} = 0; + # + # Handle numeric backupType for backward compatibility + # (technically -1 is a new feature for auto) + # + $backupType = 'auto' if ( $backupType eq '-1' ); + $backupType = 'doIncr' if ( $backupType eq '0' ); + $backupType = 'doFull' if ( $backupType eq '1' ); + if ( $backupType !~ /^doIncr|doFull|autoIncr|autoFull|auto$/i ) { + $reply = "error: unknown backup type $backupType"; + } else { + print(LOG $bpc->timeStamp, + "User $user requested backup of $host" + . " ($hostIP)\n"); + if ( $BgQueueOn{$hostIP} ) { + @BgQueue = grep($_->{host} ne $hostIP, @BgQueue); + $BgQueueOn{$hostIP} = 0; + } + if ( $UserQueueOn{$hostIP} ) { + @UserQueue = grep($_->{host} ne $hostIP, @UserQueue); + $UserQueueOn{$hostIP} = 0; + } + my $status = QueueOnePC($host, $hostIP, $user, 'user', $backupType); + if ( $status == 0 ) { + $reply = "ok: requested backup of $host ($backupType)"; + } elsif ( $status == 1 ) { + #should never see this we just dequeued it + $reply = "warning: $host was already queued." + . " Ignoring this request"; + } elsif ( $status == 2 ) { + print(LOG $bpc->timeStamp, + "Disk too full ($Info{DUlastValue}%)." + . " Not queueing backup of $host\n"); + $reply = "error: disk too full ($Info{DUlastValue}%)"; + $Info{DUDailySkipHostCnt}++; + } elsif ( $status == 3 ) { + # should never reach this because + # it's set to "user" above + $reply = "error: unknown queue name"; + } else { + $reply = "error: unknown queue status $status"; + if ( $BgQueueOn{$hostIP} || $UserQueueOn{$hostIP} ) { + $reply .= ". Host is queued."; + } else { + $reply .= ". Host is not queued."; + } + } } - unshift(@UserQueue, { - host => $hostIP, - user => $user, - reqTime => time, - doFull => $doFull, - userReq => 1, - dhcp => $hostIP eq $host ? 0 : 1, - }); - $UserQueueOn{$hostIP} = 1; - $reply = "ok: requested backup of $host"; } } elsif ( $cmd =~ /^archive (\S+)\s+(\S+)\s+(\S+)/ ) { my $user = $1; @@ -1381,7 +1429,7 @@ sub Main_Check_Client_Messages } else { unshift(@UserQueue, { host => $host, - hostIP => $user, + user => $user, reqFileName => $reqFileName, reqTime => time, dhcp => 0, @@ -1399,7 +1447,7 @@ sub Main_Check_Client_Messages my $reqFileName = $4; $host = $bpc->uriUnesc($host); $hostIP = $bpc->uriUnesc($hostIP); - if ( !defined($Status{$host}) ) { + if ( !defined($Hosts->{$host}) ) { print(LOG $bpc->timeStamp, "User $user requested restore to unknown host" . " $host"); @@ -1576,10 +1624,8 @@ sub StatusWrite [ \%Info, \%Status], [qw(*Info *Status)]); $dump->Indent(1); - if ( open(STATUS, ">", "$LogDir/status.pl") ) { - print(STATUS $dump->Dump); - close(STATUS); - } + my $text = $dump->Dump; + $bpc->{storage}->TextFileWrite("$LogDir/status.pl", $text); } # @@ -1597,7 +1643,6 @@ sub HostSortCompare # # Hosts with no errors go after hosts with errors # - return 1 if ( $Status{$a}{error} eq "" && $Status{$b}{error} ne "" ); # @@ -1613,87 +1658,111 @@ sub HostSortCompare } # -# Queue all the hosts for backup. This means queuing all the fixed -# ip hosts and all the dhcp address ranges. We also additionally -# queue the dhcp hosts with a -e flag to check for expired dumps. +# Attempt to queue a host. +# Returns 0 on success; 1 if host is already queued; +# 2 if host was skipped; 3 on invalid queue name # -sub QueueAllPCs +# $host is the client's host name +# $hostIP is usually the client's host name too, or IP address +# if the user specified it in the manual backup command +# $user is the user name, or BackupPC by default +# $queue is which queue to use ("bg" by default) +# $backupType is the backup type (doIncr|doFull|autoIncr|autoFull|auto|dhcpPoll) +# +# Note: starting in 3.2.0, the PC is queued even if it has a current +# job running +# +sub QueueOnePC { - my $nSkip = 0; - foreach my $host ( sort(HostSortCompare keys(%$Hosts)) ) { - delete($Status{$host}{backoffTime}) - if ( defined($Status{$host}{backoffTime}) + my($host, $hostIP, $user, $queue, $backupType) = @_; + my $retVal = 0; + $user = "BackupPC" if ( $user eq '' ); + $queue = "bg" if ( $queue eq '' && $user eq 'BackupPC' ); + $backupType = "auto" if ( $backupType eq '' ); + + delete($Status{$host}{backoffTime}) + if ( defined($Status{$host}{backoffTime}) && $Status{$host}{backoffTime} < time ); - next if ( defined($Jobs{$host}) - || $BgQueueOn{$host} - || $UserQueueOn{$host} - || $CmdQueueOn{$host} ); - if ( $Hosts->{$host}{dhcp} ) { - $Status{$host}{dhcpCheckCnt}++; - if ( $RunNightlyWhenIdle ) { - # - # Once per night queue a check for DHCP hosts that just - # checks for expired dumps. We need to do this to handle - # the case when a DHCP host has not been on the network for - # a long time, and some of the old dumps need to be expired. - # Normally expiry checks are done by BackupPC_dump only - # after the DHCP hosts has been detected on the network. - # - unshift(@BgQueue, - {host => $host, user => "BackupPC", reqTime => time, - dhcp => 0, dumpExpire => 1}); - $BgQueueOn{$host} = 1; - } - } else { + return 1 if ( $BgQueueOn{$host} || $UserQueueOn{$host} ); + if ( $Hosts->{$host}{dhcp} ) { + $Status{$host}{dhcpCheckCnt}++; + if ( $RunNightlyWhenIdle ) { # - # this is a fixed ip host: queue it + # Once per night queue a check for DHCP hosts that just + # checks for expired dumps. We need to do this to handle + # the case when a DHCP host has not been on the network for + # a long time, and some of the old dumps need to be expired. + # Normally expiry checks are done by BackupPC_dump only + # after the DHCP hosts has been detected on the network. # - if ( $Info{DUlastValue} > $Conf{DfMaxUsagePct} ) { - # - # Since we are out of disk space, instead of queuing - # a regular job, queue an expire check instead. That - # way if the admin reduces the number of backups to - # keep then we will actually delete them. Otherwise - # BackupPC_dump will never run since we have exceeded - # the limit. - # - $nSkip++; - unshift(@BgQueue, - {host => $host, user => "BackupPC", reqTime => time, - dhcp => $Hosts->{$host}{dhcp}, dumpExpire => 1}); - } else { - # - # Queue regular background backup - # - unshift(@BgQueue, - {host => $host, user => "BackupPC", reqTime => time, - dhcp => $Hosts->{$host}{dhcp}}); - } + unshift(@BgQueue, + {host => $hostIP, user => $user, reqTime => time, + dhcp => 0, dumpExpire => 1}); $BgQueueOn{$host} = 1; } + } else { + # + # this is a fixed ip host or DHCP ip address: queue it + # + if ( $Info{DUlastValue} > $Conf{DfMaxUsagePct} ) { + # + # Since we are out of disk space, instead of queuing + # a regular job, queue an expire check instead. That + # way if the admin reduces the number of backups to + # keep then we will actually delete them. Otherwise + # BackupPC_dump will never run since we have exceeded + # the limit. + # + $retVal = 2; + unshift(@BgQueue, + {host => $hostIP, user => $user, reqTime => time, dumpExpire => 1}); + $BgQueueOn{$host} = 1; + } elsif( $queue eq 'bg' ) { + # + # Queue regular background backup + # + unshift(@BgQueue, + {host => $hostIP, user => $user, reqTime => time, backupType => $backupType}); + $BgQueueOn{$host} = 1; + } elsif( $queue eq 'user' ) { + # + # Queue user backup + # + unshift(@UserQueue, + {host => $hostIP, user => $user, reqTime => time, backupType => $backupType}); + $UserQueueOn{$host} = 1; + } else { + # unknown $queue type + $retVal = 3; + } } - if ( $nSkip ) { - print(LOG $bpc->timeStamp, - "Disk too full ($Info{DUlastValue}%); skipped $nSkip hosts\n"); - $Info{DUDailySkipHostCnt} += $nSkip; + + return $retVal; +} + +# +# Queue all the hosts for backup. This means queuing all the fixed +# ip hosts and all the dhcp address ranges. We also additionally +# queue the dhcp hosts with a -e flag to check for expired dumps. +# +sub QueueAllPCs +{ + my $nSkip = 0; + + foreach my $host ( sort HostSortCompare keys(%$Hosts) ) { + $nSkip++ if ( QueueOnePC($host, $host, 'BackupPC', 'bg', 'auto') == 2 ); } foreach my $dhcp ( @{$Conf{DHCPAddressRanges}} ) { for ( my $i = $dhcp->{first} ; $i <= $dhcp->{last} ; $i++ ) { my $ipAddr = "$dhcp->{ipAddrBase}.$i"; - next if ( defined($Jobs{$ipAddr}) - || $BgQueueOn{$ipAddr} - || $UserQueueOn{$ipAddr} - || $CmdQueueOn{$ipAddr} ); - # - # this is a potential dhcp ip address (we don't know the - # host name yet): queue it - # - unshift(@BgQueue, - {host => $ipAddr, user => "BackupPC", reqTime => time, - dhcp => 1}); - $BgQueueOn{$ipAddr} = 1; + $nSkip++ if ( QueueOnePC($ipAddr, $ipAddr, 'BackupPC', 'bg', 'dhcpPoll') == 2 ); } } + if ( $nSkip ) { + print(LOG $bpc->timeStamp, + "Disk too full ($Info{DUlastValue}%); skipped $nSkip hosts\n"); + $Info{DUDailySkipHostCnt} += $nSkip; + } } #