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author | heper <heper@users.noreply.github.com> | 2015-11-06 17:59:37 +0100 |
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committer | heper <heper@users.noreply.github.com> | 2015-11-06 17:59:37 +0100 |
commit | 6837a0f5a8b39bd09122051638bfdd0130c32a27 (patch) | |
tree | 2dacc6341e5d2626edc985a214046192e3c401c9 | |
parent | 89f3ec04dc4c0c9847b4603e28bd660881ef0a50 (diff) | |
download | pfsense-6837a0f5a8b39bd09122051638bfdd0130c32a27.zip pfsense-6837a0f5a8b39bd09122051638bfdd0130c32a27.tar.gz |
add dhcpd rrd graph
-rw-r--r-- | src/usr/local/bin/dhcpd_gather_stats.php | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/src/usr/local/bin/dhcpd_gather_stats.php b/src/usr/local/bin/dhcpd_gather_stats.php new file mode 100644 index 0000000..e2ebee0 --- /dev/null +++ b/src/usr/local/bin/dhcpd_gather_stats.php @@ -0,0 +1,231 @@ +#!/usr/local/bin/php-cgi -q +<?php +/* $Id$ */ +/* + dhcpd_gather_stats.php + Copyright (C) 2013-2015 Electric Sheep Fencing, LP + 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_once("config.inc"); + +$leasesfile = "{$g['dhcpd_chroot_path']}/var/db/dhcpd.leases"; +$leases_contents = file($leasesfile); +$dhcpif = $argv[1] ; + +/* echo the rrd required syntax */ +echo "N:"; +$result = "NaN"; + +function remove_duplicate($array, $field) { + foreach ($array as $sub) { + $cmp[] = $sub[$field]; + } + $unique = array_unique(array_reverse($cmp, true)); + foreach ($unique as $k => $rien) { + $new[] = $array[$k]; + } + return $new; +} +$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("/bin/cat {$leasesfile} | {$awk} {$cleanpattern} | {$awk} {$splitpattern}", $leases_content); +$leases_count = count($leases_content); +exec("/usr/sbin/arp -an", $rawdata); +$arpdata_ip = array(); +$arpdata_mac = array(); +foreach ($rawdata as $line) { + $elements = explode(' ', $line); + if ($elements[3] != "(incomplete)") { + $arpent = array(); + $arpdata_ip[] = trim(str_replace(array('(', ')'), '', $elements[1])); + $arpdata_mac[] = strtolower(trim($elements[3])); + } +} +unset($rawdata); +$pools = array(); +$leases = array(); +$i = 0; +$l = 0; +$p = 0; + +// Put everything together again +foreach ($leases_content as $lease) { + /* split the line by space */ + $data = explode(" ", $lease); + /* walk the fields */ + $f = 0; + $fcount = count($data); + /* with less than 20 fields there is nothing useful */ + if ($fcount < 20) { + $i++; + continue; + } + while ($f < $fcount) { + switch ($data[$f]) { + case "failover": + $pools[$p]['name'] = trim($data[$f+2], '"'); + $pools[$p]['name'] = "{$pools[$p]['name']} (" . convert_friendly_interface_to_friendly_descr(substr($pools[$p]['name'], 5)) . ")"; + $pools[$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 = $f+3; + break; + case "ends": + if ($data[$f+1] == "never") { + // Quote from dhcpd.leases(5) man page: + // If a lease will never expire, date is never instead of an actual date. + $leases[$l]['end'] = gettext("Never"); + $f = $f+1; + } else { + $leases[$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 "rewind": + /* skip the rewind 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 (in_array($leases[$l]['ip'], $arpdata_ip)) { + $leases[$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++; + $i++; + /* slowly chisel away at the source array */ + array_shift($leases_content); +} +/* remove the old array */ +unset($lease_content); + +/* remove duplicate items by mac address */ +if (count($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'][$ifname]) && + is_array($config['dhcpd'][$ifname]['staticmap'])) { + $staticmap_array_index = 0; + foreach ($config['dhcpd'][$ifname]['staticmap'] as $static) { + $slease = array(); + $slease['ip'] = $static['ipaddr']; + $slease['act'] = "static"; + $slease['online'] = in_array(strtolower($slease['mac']), $arpdata_mac) ? 'online' : 'offline'; + $slease['staticmap_array_index'] = $staticmap_array_index; + $leases[] = $slease; + $staticmap_array_index++; + } + } +} + + +foreach ($leases as $data) { + $lip = ip2ulong($data['ip']); + if ($data['act'] != "active" && $data['act'] != "static" && $_GET['all'] != 1) + continue; + if ($data['act'] != "static") { + if (($lip >= ip2ulong($config['dhcpd'][$dhcpif]['range']['from'])) && ($lip <= ip2ulong($config['dhcpd'][$dhcpif]['range']['to']))) { + $result = $result + 1; + + } + } +} +echo "$result" ; |