--- loncom/init.d/loncontrol 2007/06/02 03:40:02 1.31 +++ loncom/init.d/loncontrol 2010/01/13 19:26:54 1.34.2.1 @@ -1,6 +1,6 @@ #!/usr/bin/perl # -# $Id: loncontrol,v 1.31 2007/06/02 03:40:02 albertel Exp $ +# $Id: loncontrol,v 1.34.2.1 2010/01/13 19:26:54 raeburn Exp $ # # The LearningOnline Network with CAPA # @@ -47,8 +47,11 @@ # Description: Starts the LON-CAPA services ### END INIT INFO +use strict; +use lib '/home/httpd/lib/perl/'; +use LONCAPA::Configuration; -$command=$ARGV[0]; $command=~s/[^a-z]//g; +my $command=$ARGV[0]; $command=~s/[^a-z]//g; $ENV{'PATH'}="/sbin:/bin:/usr/sbin:/usr/bin:/usr/X11R6/bin:/root/bin"; $ENV{'BASH_ENV'}=""; @@ -59,41 +62,88 @@ $ENV{'BASH_ENV'}=""; my $iptables = '/sbin/iptables'; if (! -e $iptables) { $iptables = '/usr/sbin/iptables'; - if (! -e $iptables) { + if (!-e $iptables) { print("Unable to find iptables command\n"); } } - my $lond_port = 5663; - my $lonhttpd_port = 8080; + my $suse_config = "/etc/sysconfig/SuSEfirewall2"; + if (-e $suse_config) { + $fw_chain = 'input_ext'; + } else { + if (!-e '/etc/sysconfig/iptables') { + print("Unable to find iptables file containing static definitions\n"); + } + } + if (-e $iptables) { + my $count = `$iptables -L -n 2>/dev/null |grep $fw_chain |wc -l`; + chomp($count); + if (!$count) { + $fw_chain ='INPUT'; + } + } + my $lond_port = &get_lond_port(); + if (!$lond_port) { + print("Unable to determine lond port number from LON-CAPA configuration.\n"); + } sub firewall_open_port { - return if (! &firewall_is_active); - if (! `$iptables -L -n 2>/dev/null | grep $fw_chain | wc -l`) { return; } - # iptables is running with our chain - # - # We could restrict the servers allowed to attempt to communicate - # here, but the logistics of updating the /home/httpd/lonTabs/host.tab - # file are likely to be a problem - foreach my $port ($lond_port,$lonhttpd_port) { - print "Opening firewall access on port $port.\n"; - - my $firewall_command = - "$iptables -I $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT"; - system($firewall_command); - my $return_status = $?>>8; - if ($return_status == 1) { - # Error - print "Error opening port.\n"; - } elsif ($return_status == 2) { - # Bad command - print "Bad command error opening port. Command was\n". - " ".$firewall_command."\n"; + return 'inactive firewall' if (! &firewall_is_active); + return 'port number unknown' if !$lond_port; + my @opened; + my $suse_config = "/etc/sysconfig/SuSEfirewall2"; + if (-e $suse_config) { + if (open(my $fh,"<$suse_config")) { + while(<$fh>) { + chomp(); + if (/^FW_SERVICES_EXT_TCP="([^"]+)"\s*$/) { + my $portstr = $1; + my @suseports = split(/\s+/,$portstr); + foreach my $port ($lond_port) { + if (grep/^\Q$port\E$/,@suseports) { + push(@opened,$port); + } + } + } + } + } + } else { + if (! `$iptables -L -n 2>/dev/null | grep $fw_chain | wc -l`) { + return 'chain error'; + } + # iptables is running with our chain + # + # We could restrict the servers allowed to attempt to communicate + # here, but the logistics of updating the /home/httpd/lonTabs/host.tab + # file are likely to be a problem + foreach my $port ($lond_port) { + print "Opening firewall access on port $port.\n"; + my $result; + my $firewall_command = + "$iptables -I $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT"; + system($firewall_command); + my $return_status = $?>>8; + if ($return_status == 1) { + # Error + print "Error opening port.\n"; + } elsif ($return_status == 2) { + # Bad command + print "Bad command error opening port. Command was\n". + " ".$firewall_command."\n"; + } elsif ($return_status == 0) { + push(@opened,$port); + } } } - + foreach my $port ($lond_port) { + if (!grep(/^\Q$port\E$/,@opened)) { + return 'Required port not open: '.$port."\n"; + } + } + return 'ok'; } sub firewall_is_port_open { + my ($port) = @_; # returns 1 if the firewall port is open, 0 if not. # # check if firewall is active or installed @@ -114,9 +164,12 @@ sub firewall_is_active { } sub firewall_close_port { - return if (! &firewall_is_active); - foreach my $port ($lond_port,$lonhttpd_port) { - print "Closing firewall access on port $port.\n"; + return 'inactive firewall' if (! &firewall_is_active); + return 'port number unknown' if !$lond_port; + my $suse_config = "/etc/sysconfig/SuSEfirewall2"; + return if (-e $suse_config); + foreach my $port ($lond_port) { + print "Closing firewall access on port $port\n"; my $firewall_command = "$iptables -D $fw_chain -p tcp -d 0/0 --dport $port -j ACCEPT"; system($firewall_command); @@ -128,8 +181,22 @@ sub firewall_close_port { # Bad command print "Bad command error closing port. Command was\n". " ".$firewall_command."\n"; + } else { + print "Port closed.\n"; + } + } + return; +} + +sub get_lond_port { + my $perlvarref=&LONCAPA::Configuration::read_conf(); + my $lond_port; + if (ref($perlvarref) eq 'HASH') { + if (defined($perlvarref->{'londPort'})) { + $lond_port = $perlvarref->{'londPort'}; } } + return $lond_port; } } # End firewall variable scope @@ -144,7 +211,10 @@ sub stop_daemon { my $daemonpid=; chomp($daemonpid); kill TERM => $daemonpid; - sleep 1; + my $count=0; + while ($count++ < 5 && kill(0 => $daemonpid)) { + sleep 1; + } if (kill 0 => $daemonpid) { kill KILL => $daemonpid; sleep 1; @@ -170,9 +240,11 @@ sub stop_daemon { sub clean_sockets { opendir(SOCKETS,"/home/httpd/sockets/"); + my $perlvarref=&LONCAPA::Configuration::read_conf(); + return if (ref($perlvarref) ne 'HASH'); while (my $fname=readdir(SOCKETS)) { next if (-d $fname - || $fname=~/(mysqlsock|maximasock|\Q$perlvar{'lonSockDir'}\E)/); + || $fname=~/(mysqlsock|maximasock|\Q$perlvarref->{'lonSockDir'}\E)/); unlink("/home/httpd/sockets/$fname"); } } @@ -180,7 +252,7 @@ sub clean_sockets { if ($command eq "restart") { print 'Restarting LON-CAPA'."\n"; print 'Ending LON-CAPA client and daemon processes'."\n"; - foreach my $daemon ('lonsql','lond','lonc','lonhttpd','lonmemcached','lonmaxima') { + foreach my $daemon ('lonsql','lond','lonc','lonmemcached','lonmaxima') { my $killallname=$daemon; if ($daemon eq 'lonc') { $killallname='loncnew'; } &stop_daemon($daemon,$killallname); @@ -190,24 +262,40 @@ if ($command eq "restart") { system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'"); } elsif ($command eq "stop") { print 'Stopping LON-CAPA'."\n"; - foreach my $daemon ('lonsql','lond','lonc','lonhttpd','lonmemcached','lonmaxima') { + foreach my $daemon ('lonsql','lond','lonc','lonmemcached','lonmaxima') { my $killallname=$daemon; if ($daemon eq 'lonc') { $killallname='loncnew'; } &stop_daemon($daemon,$killallname); } - &firewall_close_port(); + my $firewall_result = &firewall_close_port(); + if ($firewall_result) { + print "$firewall_result\n"; + } &clean_sockets(); } elsif ($command eq "start") { - &firewall_open_port(); - print 'Starting LON-CAPA'."\n"; - print 'Starting LON-CAPA client and daemon processes (please be patient)'. - "\n"; - system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'"); + my $firewall_result = &firewall_open_port(); + if (($firewall_result eq 'ok') || ($firewall_result eq 'inactive firewall')) { + if ($firewall_result eq 'inactive firewall') { + print "WARNING: iptables firewall is currently inactive\n"; + } + print 'Starting LON-CAPA'."\n"; + print 'Starting LON-CAPA client and daemon processes (please be patient)'. + "\n"; + system("su www -c '/home/httpd/perl/loncron --justcheckdaemons'"); + } else { + print "Not starting LON-CAPA\n"; + if ($firewall_result eq 'port number unknown') { + print "Could not check for status of LON-CAPA port in running firewall - port number unknown. \n"; + } elsif ($firewall_result) { + print "$firewall_result\n"; + } + } } elsif ($command eq "reload") { print 'Reload LON-CAPA config files'."\n"; system("su www -c '/home/httpd/perl/loncron --justreload'"); } elsif ($command eq "status") { - $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`; + my $lond_port = &get_lond_port(); + my $response=`/bin/cat /home/httpd/perl/logs/*.pid 2>&1`; if ($response=~/No such file or directory/) { print 'LON-CAPA is not running.'."\n"; } else { @@ -217,11 +305,20 @@ if ($command eq "restart") { if (! &firewall_is_active) { print 'The iptables firewall is not active'."\n"; } - if (&firewall_is_port_open()) { - print 'The LON-CAPA port is open in firewall.'."\n"; - } elsif (&firewall_is_active) { - print 'The LON-CAPA port is NOT open in running firewall!'."\n"; + my $lond_port = &get_lond_port(); + if ($lond_port) { + if (&firewall_is_port_open($lond_port)) { + print "The LON-CAPA port ($lond_port) is open in firewall.\n"; + } elsif (&firewall_is_active) { + print "The LON-CAPA port ($lond_port) is NOT open in running firewall!\n"; + } + } else { + if (&firewall_is_active) { + print "Could not check for status of LON-CAPA port in running firewall - port number unknown.\n"; + } else { + print "LON-CAPA port number is unknown, and firewall is not running.\n"; + } } } else { - print 'You need to specify one of restart|stop|start|status on the command line.'."\n"; + print "You need to specify one of restart|stop|start|status on the command line.\n"; }