.
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.
*/
##|+PRIV
##|*IDENT=page-diagnostics-arptable
##|*NAME=Diagnostics: ARP Table page
##|*DESCR=Allow access to the 'Diagnostics: ARP Table' page.
##|*MATCH=diag_arp.php*
##|-PRIV
require("guiconfig.inc");
function leasecmp($a, $b) {
return strcmp($a[$_GET['order']], $b[$_GET['order']]);
}
function adjust_gmt($dt) {
$ts = strtotime($dt . " GMT");
return strftime("%Y/%m/%d %H:%M:%S", $ts);
}
function remove_duplicate($array, $field) {
foreach ($array as $sub)
$cmp[] = $sub[$field];
$unique = array_unique($cmp);
foreach ($unique as $k => $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);
}
// Put this in an easy to use form
$dhcpmac = array();
$dhcpip = array();
foreach ($leases as $value) {
$dhcpmac[$value['mac']] = $value['hostname'];
$dhcpip[$value['ip']] = $value['hostname'];
}
exec("/usr/sbin/arp -an",$rawdata);
$i = 0;
/* if list */
$ifdescrs = get_configured_interface_with_descr();
foreach ($ifdescrs as $key =>$interface) {
$hwif[$config['interfaces'][$key]['if']] = $interface;
}
$data = array();
foreach ($rawdata as $line) {
$elements = explode(' ',$line);
if ($elements[3] != "(incomplete)") {
$arpent = array();
$arpent['ip'] = trim(str_replace(array('(',')'),'',$elements[1]));
$arpent['mac'] = trim($elements[3]);
$arpent['interface'] = trim($elements[5]);
$data[] = $arpent;
}
}
function getHostName($mac,$ip)
{
global $dhcpmac, $dhcpip;
if ($dhcpmac[$mac])
return $dhcpmac[$mac];
else if ($dhcpip[$ip])
return $dhcpip[$ip];
else if(gethostbyaddr($ip) <> "" and gethostbyaddr($ip) <> $ip)
return gethostbyaddr($ip);
else
return " ";
}
$pgtitle = array("Diagnostics","ARP Table");
include("head.inc");
?>