. All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ require("guiconfig.inc"); $pgtitle = "Diagnostics: DHCP leases"; include("head.inc"); ?>

$rien) $new[] = $array[$k]; return $new; } $leasesfile = "{$g['dhcpd_chroot_path']}/var/db/dhcpd.leases"; $awk = "/usr/bin/awk"; /* this pattern sticks comments into a single array item */ $cleanpattern = "'{ gsub(\"#.*\", \"\");} { gsub(\";\", \"\"); print;}'"; /* We then split the leases file by } */ $splitpattern = "'BEGIN { RS=\"}\";} {for (i=1; i<=NF; i++) printf \"%s \", \$i; printf \"}\\n\";}'"; /* stuff the leases file in a proper format into a array by line */ exec("cat {$leasesfile} | {$awk} {$cleanpattern} | {$awk} {$splitpattern}", $leases_content); $leases_count = count($leases_content); $pools = array(); $leases = array(); $i = 0; $l = 0; $p = 0; // Put everything together again while($i < $leases_count) { /* split the line by space */ $data = explode(" ", $leases_content[$i]); /* walk the fields */ $f = 0; $fcount = count($data); /* with less then 20 fields there is nothing useful */ if($fcount < 20) { $i++; continue; } while($f < $fcount) { switch($data[$f]) { case "failover": $pools[$p]['name'] = $data[$f+2]; $pools[$p]['mystate'] = $data[$f+7]; $pools[$p]['peerstate'] = $data[$f+14]; $pools[$p]['mydate'] = $data[$f+10]; $pools[$p]['mydate'] .= " " . $data[$f+11]; $pools[$p]['peerdate'] = $data[$f+17]; $pools[$p]['peerdate'] .= " " . $data[$f+18]; $p++; $i++; continue 3; case "lease": $leases[$l]['ip'] = $data[$f+1]; $leases[$l]['type'] = "dynamic"; $f = $f+2; break; case "starts": $leases[$l]['start'] = $data[$f+2]; $leases[$l]['start'] .= " " . $data[$f+3]; $f = $f+3; break; case "ends": $leases[$l]['end'] = $data[$f+2]; $leases[$l]['end'] .= " " . $data[$f+3]; $f = $f+3; break; case "tstp": $f = $f+3; break; case "tsfp": $f = $f+3; break; case "atsfp": $f = $f+3; break; case "cltt": $f = $f+3; break; case "binding": switch($data[$f+2]) { case "active": $leases[$l]['act'] = "active"; break; case "free": $leases[$l]['act'] = "expired"; $leases[$l]['online'] = "offline"; break; case "backup": $leases[$l]['act'] = "reserved"; $leases[$l]['online'] = "offline"; break; } $f = $f+1; break; case "next": /* skip the next binding statement */ $f = $f+3; break; case "hardware": $leases[$l]['mac'] = $data[$f+2]; /* check if it's online and the lease is active */ if($leases[$l]['act'] == "active") { $online = exec("/usr/sbin/arp -an |/usr/bin/awk '/{$leases[$l]['ip']}/ {print}'|wc -l"); if ($online == 1) { $leases[$l]['online'] = 'online'; } else { $leases[$l]['online'] = 'offline'; } } $f = $f+2; break; case "client-hostname": if($data[$f+1] <> "") { $leases[$l]['hostname'] = preg_replace('/"/','',$data[$f+1]); } else { $hostname = gethostbyaddr($leases[$l]['ip']); if($hostname <> "") { $leases[$l]['hostname'] = $hostname; } } $f = $f+1; break; case "uid": $f = $f+1; break; } $f++; } $l++; $i++; } /* remove duplicate items by mac address */ if(count($leases) > 0) { $leases = remove_duplicate($leases,"ip"); } if(count($pools) > 0) { $pools = remove_duplicate($pools,"name"); asort($pools); } foreach($config['interfaces'] as $ifname => $ifarr) { if (is_array($config['dhcpd'][$ifname]['staticmap'])) { foreach($config['dhcpd'][$ifname]['staticmap'] as $static) { $slease = array(); $slease['ip'] = $static['ipaddr']; $slease['type'] = "static"; $slease['mac'] = $static['mac']; $slease['start'] = gmdate("M d Y H:i:s", time()); $slease['end'] = gmdate("M d Y H:i:s", time()); $slease['end'] = gmdate("M d Y H:i:s", strtotime('+5 minutes')); $slease['hostname'] = htmlentities($static['hostname']); $slease['act'] = "static"; $online = exec("/usr/sbin/arp -an |/usr/bin/grep {$slease['mac']}| /usr/bin/wc -l|/usr/bin/awk '{print $1;}'"); if ($online == 1) { $slease['online'] = 'online'; } else { $slease['online'] = 'offline'; } $leases[] = $slease; } } } if ($_GET['order']) usort($leases, "leasecmp"); ?> 0) { ?> \n"; echo "\n"; echo "\n"; echo "\n"; echo "\n"; echo "\n"; echo "\n"; echo "\n"; echo "\n"; } ?>
Failover Group My State Since Peer State Since
{$fspans}{$data['name']}{$fspane} {$fspans}{$data['mystate']}{$fspane} {$fspans}" . adjust_gmt($data['mydate']) . "{$fspane} {$fspans}{$data['peerstate']}{$fspane} {$fspans}" . adjust_gmt($data['peerdate']) . "{$fspane}   

"; $fspane = ""; } else { $fspans = $fspane = ""; } $lip = ip2long($data['ip']); if ($data['act'] == "static") { foreach ($config['dhcpd'] as $dhcpif => $dhcpifconf) { if(is_array($dhcpifconf['staticmap'])) { foreach ($dhcpifconf['staticmap'] as $staticent) { if ($data['ip'] == $staticent['ipaddr']) { $data['if'] = $dhcpif; break; } } } /* exit as soon as we have an interface */ if ($data['if'] != "") break; } } else { foreach ($config['dhcpd'] as $dhcpif => $dhcpifconf) { if (($lip >= ip2long($dhcpifconf['range']['from'])) && ($lip <= ip2long($dhcpifconf['range']['to']))) { $data['if'] = $dhcpif; break; } } } echo "\n"; echo "\n"; if ($data['online'] != "online") { echo "\n"; } else { echo "\n"; } echo "\n"; echo "\n"; echo "\n"; echo "\n"; echo "\n"; if ($data['type'] == "dynamic") { echo "\n"; } else { echo "\n"; } echo "\n"; echo "\n"; } } ?>
IP address MAC address Hostname Start End Online Lease Type
{$fspans}{$data['ip']}{$fspane} {$fspans}{$data['mac']}{$fspane} {$fspans}{$data['mac']}{$fspane} {$fspans}" . htmlentities($data['hostname']) . "{$fspane} {$fspans}" . adjust_gmt($data['start']) . "{$fspane} {$fspans}" . adjust_gmt($data['end']) . "{$fspane} {$fspans}{$data['online']}{$fspane} {$fspans}{$data['act']}{$fspane} "; echo ""; echo ""; echo "

No leases file found. Is the DHCP server active?