#!/usr/local/bin/php . 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. */ $pgtitle = array("Diagnostics", "Logs"); require("guiconfig.inc"); $protocols = explode(" ", "TCP UDP TCP/UDP ICMP ESP AH GRE IPv6 IGMP any"); $nentries = $config['syslog']['nentries']; $resolve = isset($config['syslog']['resolve']); if (!$nentries) $nentries = 50; if ($_POST['clear']) { exec("/usr/sbin/clog -i -s 262144 /var/log/filter.log"); /* redirect to avoid reposting form data on refresh */ header("Location: diag_logs_filter.php"); exit; } if (isset($_GET['act']) && preg_match("/^[pb]+$/", $_GET['act'])) { $action = $_GET['act']; $ifstring .= "&act=" . urlencode($action); $srcstring .= "&act=" . urlencode($action); $dststring .= "&act=" . urlencode($action); $prstring .= "&act=" . urlencode($action); } if (isset($_GET['if']) && ($_GET['if'] != "")) { $iface = $_GET['if']; $actstring .= "&if=" . urlencode($iface); $srcstring .= "&if=" . urlencode($iface); $dststring .= "&if=" . urlencode($iface); $prstring .= "&if=" . urlencode($iface); } if (isset($_GET['pr']) && in_array($_GET['pr'], $protocols)) { $proto = $_GET['pr']; $actstring .= "&pr=" . urlencode($proto); $ifstring .= "&pr=" . urlencode($proto); $srcstring .= "&pr=" . urlencode($proto); $dststring .= "&pr=" . urlencode($proto); } if (isset($_GET['sp']) && (is_numeric($_GET['sp']))) { $srcport = $_GET['sp']; $actstring .= "&sp=" . urlencode($srcport); $ifstring .= "&sp=" . urlencode($srcport); $dststring .= "&sp=" . urlencode($srcport); $prstring .= "&sp=" . urlencode($srcport); } if (isset($_GET['dp']) && (is_numeric($_GET['dp']))) { $dstport = $_GET['dp']; $actstring .= "&dp=" . urlencode($dstport); $ifstring .= "&dp=" . urlencode($dstport); $srcstring .= "&dp=" . urlencode($dstport); $prstring .= "&dp=" . urlencode($dstport); } function dump_clog($logfile, $tail, $withorig = true) { global $g, $config; $sor = isset($config['syslog']['reverse']) ? "-r" : ""; exec("/usr/sbin/clog " . $logfile . " | tail {$sor} -n " . $tail, $logarr); foreach ($logarr as $logent) { $logent = preg_split("/\s+/", $logent, 6); echo "\n"; if ($withorig) { echo "" . htmlspecialchars(join(" ", array_slice($logent, 0, 3))) . "\n"; echo "" . htmlspecialchars($logent[4] . " " . $logent[5]) . "\n"; } else { echo "" . htmlspecialchars($logent[5]) . "\n"; } echo "\n"; } } function conv_clog($logfile, $tail) { global $g, $config, $iface, $action, $proto, $srcport, $dstport; /* make interface/port table */ $iftable = array(); $iftable[$config['interfaces']['lan']['if']] = "LAN"; $iftable[get_real_wan_interface()] = "WAN"; for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) $iftable[$config['interfaces']['opt' . $i]['if']] = $config['interfaces']['opt' . $i]['descr']; $sor = isset($config['syslog']['reverse']) ? "-r" : ""; exec("/usr/sbin/clog " . $logfile . " | tail {$sor} -n " . $tail, $logarr); $filterlog = array(); foreach ($logarr as $logent) { $logent = preg_split("/\s+/", $logent, 6); $ipfa = explode(" ", $logent[5]); $flent = array(); $i = 0; $flent['time'] = $ipfa[$i]; $i++; if (substr($ipfa[$i], -1) == "x") { $flent['count'] = substr($ipfa[$i], 0, -1); $i++; } if ($iftable[$ipfa[$i]]) $flent['interface'] = $iftable[$ipfa[$i]]; else if (strpos($ipfa[$i], "ng") !== false) $flent['interface'] = "PPTP"; else if (strpos($ipfa[$i], "l2tp") !== false) $flent['interface'] = "L2TP"; else if ($ipfa[$i] == "enc0") $flent['interface'] = "IPsec"; else if ($ipfa[$i] == "gif0") $flent['interface'] = "WAN"; else if ($ipfa[$i] == "stf0") $flent['interface'] = "WAN"; else $flent['interface'] = $ipfa[$i]; if (isset($iface)) { if ($iface != $flent['interface']) continue; } $i += 2; if (!isset($action) || strstr($action, $ipfa[$i])) $flent['act'] = $ipfa[$i]; else continue; $i++; list($flent['src'], $flent['srcport']) = format_ipf_ip($ipfa[$i],$srcport); if (!isset($flent['src'])) continue; $i += 2; list($flent['dst'], $flent['dstport']) = format_ipf_ip($ipfa[$i],$dstport); if (!isset($flent['dst'])) continue; $i += 2; $protocol = strtoupper($ipfa[$i]); if (!isset($proto) || ($proto == $protocol)) $flent['proto'] = $protocol; else continue; if ($protocol == "ICMP") { $i += 5; $flent['dst'] = $flent['dst'] . ", type " . $ipfa[$i]; } $filterlog[] = $flent; } return $filterlog; } function format_ipf_ip($ipfip,$uport) { global $resolve; list($ip,$port) = explode(",", $ipfip); if ($resolve) { if (!$port) return array(gethostbyaddr($ip), ""); if ($uport == "" || ($uport == $port)) return array(gethostbyaddr($ip) . ", port " . $port, $port); return; } if (!$port) return array($ip, ""); if ($uport == "" || ($uport == $port)) return array($ip . ", port " . $port, $port); return; } ?>
    'diag_logs.php', 'Firewall' => 'diag_logs_filter.php', 'DHCP' => 'diag_logs_dhcp.php', 'Captive portal' => 'diag_logs_portal.php', 'PPTP/L2TP VPN' => 'diag_logs_vpn.php', 'Settings' => 'diag_logs_settings.php'); dynamic_tab_menu($tabs); ?>
'; $ifstring .= '" style="color:black" title="click to select interface">'; $srcstring .= '" style="color:black" title="click to select source port">'; $dststring .= '" style="color:black" title="click to select destination port">'; $prstring .= '" style="color:black" title="click to select protocol">'; ?>
Last firewall log entries
Act Time If Source Destination Proto
" width="11" height="11" align="middle" border="0" title="click to select action" alt="click to select action">
Note:
There are many possibilities to filter this log. Just click on the accept () or deny symbol () to filter for accepted or denied IP packets. Do the same for the desired interface, source/destination port or protocol. To deselect a selected filter entry, click on the column description above. To reset all filter entries and reload the firewall logs page, click on the "Firewall" tab below "Diagnostics: Logs".
Last firewall log entries