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Speedup ARP page by using diag_dhcp_leases.php page code for parsing the dhcpd.leases file
This commit is contained in:
Seth Mos
parent
d323d7ca3e
commit
d083fdfb6b
@ -29,119 +29,165 @@
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*/
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require("guiconfig.inc");
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$pgtitle = "Diagnostics: ARP Table";
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include("head.inc");
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?>
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<body link="#000000" vlink="#000000" alink="#000000">
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<script src="/javascript/sorttable.js"></script>
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<? include("fbegin.inc"); ?>
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<p class="pgtitle"><?=$pgtitle?></p>
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<table width="100%" border="0" cellpadding="0" cellspacing="0">
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<tr>
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<td>
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function leasecmp($a, $b) {
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return strcmp($a[$_GET['order']], $b[$_GET['order']]);
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}
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function adjust_gmt($dt) {
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$ts = strtotime($dt . " GMT");
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return strftime("%Y/%m/%d %H:%M:%S", $ts);
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}
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function remove_duplicate($array, $field) {
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foreach ($array as $sub)
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$cmp[] = $sub[$field];
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$unique = array_unique($cmp);
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foreach ($unique as $k => $rien)
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$new[] = $array[$k];
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return $new;
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}
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$leasesfile = "{$g['dhcpd_chroot_path']}/var/db/dhcpd.leases";
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$awk = "/usr/bin/awk";
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/* this pattern sticks comments into a single array item */
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$cleanpattern = "'{ gsub(\"#.*\", \"\");} { gsub(\";\", \"\"); print;}'";
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/* We then split the leases file by } */
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$splitpattern = "'BEGIN { RS=\"}\";} {for (i=1; i<=NF; i++) printf \"%s \", \$i; printf \"}\\n\";}'";
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/* stuff the leases file in a proper format into a array by line */
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exec("cat {$leasesfile} | {$awk} {$cleanpattern} | {$awk} {$splitpattern}", $leases_content);
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$leases_count = count($leases_content);
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$pools = array();
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$leases = array();
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$i = 0;
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$l = 0;
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$p = 0;
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// Put everything together again
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while($i < $leases_count) {
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/* split the line by space */
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$data = explode(" ", $leases_content[$i]);
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/* walk the fields */
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$f = 0;
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$fcount = count($data);
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/* with less then 20 fields there is nothing useful */
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if($fcount < 20) {
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$i++;
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continue;
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}
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while($f < $fcount) {
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switch($data[$f]) {
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case "failover":
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$pools[$p]['name'] = $data[$f+2];
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$pools[$p]['mystate'] = $data[$f+7];
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$pools[$p]['peerstate'] = $data[$f+14];
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$pools[$p]['mydate'] = $data[$f+10];
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$pools[$p]['mydate'] .= " " . $data[$f+11];
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$pools[$p]['peerdate'] = $data[$f+17];
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$pools[$p]['peerdate'] .= " " . $data[$f+18];
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$p++;
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$i++;
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continue 3;
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case "lease":
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$leases[$l]['ip'] = $data[$f+1];
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$leases[$l]['type'] = "dynamic";
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$f = $f+2;
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break;
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case "starts":
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$leases[$l]['start'] = $data[$f+2];
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$leases[$l]['start'] .= " " . $data[$f+3];
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$f = $f+3;
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break;
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case "ends":
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$leases[$l]['end'] = $data[$f+2];
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$leases[$l]['end'] .= " " . $data[$f+3];
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$f = $f+3;
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break;
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case "tstp":
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$f = $f+3;
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break;
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case "tsfp":
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$f = $f+3;
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break;
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case "atsfp":
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$f = $f+3;
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break;
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case "cltt":
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$f = $f+3;
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break;
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case "binding":
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switch($data[$f+2]) {
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case "active":
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$leases[$l]['act'] = "active";
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break;
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case "free":
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$leases[$l]['act'] = "expired";
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$leases[$l]['online'] = "offline";
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break;
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case "backup":
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$leases[$l]['act'] = "reserved";
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$leases[$l]['online'] = "offline";
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break;
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}
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$f = $f+1;
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break;
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case "next":
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/* skip the next binding statement */
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$f = $f+3;
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break;
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case "hardware":
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$leases[$l]['mac'] = $data[$f+2];
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/* check if it's online and the lease is active */
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if($leases[$l]['act'] == "active") {
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$online = exec("/usr/sbin/arp -an |/usr/bin/awk '/{$leases[$l]['ip']}/ {print}'|wc -l");
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if ($online == 1) {
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$leases[$l]['online'] = 'online';
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} else {
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$leases[$l]['online'] = 'offline';
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}
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}
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$f = $f+2;
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break;
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case "client-hostname":
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if($data[$f+1] <> "") {
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$leases[$l]['hostname'] = preg_replace('/"/','',$data[$f+1]);
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} else {
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$hostname = gethostbyaddr($leases[$l]['ip']);
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if($hostname <> "") {
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$leases[$l]['hostname'] = $hostname;
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}
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}
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$f = $f+1;
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break;
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case "uid":
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$f = $f+1;
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break;
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}
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$f++;
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}
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$l++;
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$i++;
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}
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/* remove duplicate items by mac address */
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if(count($leases) > 0) {
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$leases = remove_duplicate($leases,"ip");
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}
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if(count($pools) > 0) {
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$pools = remove_duplicate($pools,"name");
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asort($pools);
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}
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<?php
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$fp = @fopen("{$g['dhcpd_chroot_path']}/var/db/dhcpd.leases","r");
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if ($fp) {
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$return = array();
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// Put this in an easy to use form
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$dhcpmac = array();
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$dhcpip = array();
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while ($line = fgets($fp)) {
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$matches = "";
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// Sort out comments
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// C-style comments not supported!
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if (preg_match("/^\s*[\r|\n]/", $line, $matches[0]) ||
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preg_match("/^([^\"#]*)#.*$/", $line, $matches[1]) ||
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preg_match("/^([^\"]*)\/\/.*$/", $line, $matches[2]) ||
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preg_match("/\s*#(.*)/", $line, $matches[3]) ||
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preg_match("/\\\"\176/", $line, $matches[4])
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) {
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$line = "";
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continue;
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}
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if (preg_match("/(.*)#(.*)/", $line, $matches))
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$line = $matches[0];
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// Tokenize lines
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do {
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if (preg_match("/^\s*\"([^\"]*)\"(.*)$/", $line, $matches)) {
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$line = $matches[2];
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$return[] = array($matches[1], 0);
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} else if (preg_match("/^\s*([{};])(.*)$/", $line, $matches)) {
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$line = $matches[2];
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$return[] = array($matches[0], 1);
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} else if (preg_match("/^\s*([^{}; \t]+)(.*)$/", $line, $matches)) {
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$line = $matches[2];
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$return[] = array($matches[1], 0);
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} else
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break;
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} while($line);
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$lines++;
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}
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fclose($fp);
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$leases = array();
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$i = 0;
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// Put everything together again
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while ($data = array_shift($return)) {
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if ($data[0] == "next") {
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$d = array_shift($return);
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}
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if ($data[0] == "lease") {
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$d = array_shift($return);
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$leases[$i]['ip'] = $d[0];
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}
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if ($data[0] == "client-hostname") {
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$d = array_shift($return);
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$leases[$i]['hostname'] = $d[0];
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}
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if ($data[0] == "hardware") {
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$d = array_shift($return);
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if ($d[0] == "ethernet") {
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$d = array_shift($return);
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$leases[$i]['mac'] = $d[0];
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}
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} else if ($data[0] == "starts") {
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$d = array_shift($return);
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$d = array_shift($return);
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$leases[$i]['start'] = $d[0];
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$d = array_shift($return);
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$leases[$i]['start'] .= " " . $d[0];
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} else if ($data[0] == "ends") {
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$d = array_shift($return);
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$d = array_shift($return);
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$leases[$i]['end'] = $d[0];
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$d = array_shift($return);
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$leases[$i]['end'] .= " " . $d[0];
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} else if ($data[0] == "binding") {
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$d = array_shift($return);
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if ($d[0] == "state") {
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$d = array_shift($return);
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$leases[$i]['act'] = $d[0];
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}
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} else if (($data[0] == "}") && ($data[1] == 1)) // End of group
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$i++;
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}
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// Put this in an easy to use form
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$dhcpmac = array();
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$dhcpip = array();
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foreach ($leases as $value) {
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$dhcpmac[$value['mac']] = $value['hostname'];
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$dhcpip[$value['ip']] = $value['hostname'];
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}
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unset($data);
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foreach ($leases as $value) {
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$dhcpmac[$value['mac']] = $value['hostname'];
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$dhcpip[$value['ip']] = $value['hostname'];
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}
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exec("/usr/sbin/arp -an",$rawdata);
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@ -184,8 +230,17 @@ function getHostName($mac,$ip)
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return " ";
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}
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?>
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$pgtitle = "Diagnostics: ARP Table";
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include("head.inc");
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?>
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<body link="#000000" vlink="#000000" alink="#000000">
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<script src="/javascript/sorttable.js"></script>
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<? include("fbegin.inc"); ?>
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<p class="pgtitle"><?=$pgtitle?></p>
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<table width="100%" border="0" cellpadding="0" cellspacing="0">
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<tr>
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<td>
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<table class="sortable" name="sortabletable" id="sortabletable" width="100%" border="0" cellpadding="0" cellspacing="0">
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<tr>
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<td class="listhdrr">IP address</td>
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