#!/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. */ require("guiconfig.inc"); if ($ipv6rules = ($_GET['type'] == 'ipv6')) { $configname = 'rule6'; $typelink = '&type=ipv6'; } else { $configname = 'rule'; $typelink = ''; } $pgtitle = array("Firewall", "Rules"); /* make group manager happy */ $pgtitle = array("Firewall", ipv6enabled() ? ($ipv6rules ? 'IPv6 Rules' : 'IPv4 Rules') : 'Rules'); if (!is_array($config['filter'][$configname])) { $config['filter'][$configname] = array(); } filter_rules_sort(); $a_filter = &$config['filter'][$configname]; $if = $_GET['if']; if ($_POST['if']) $if = $_POST['if']; $iflist = array("lan" => "LAN", "wan" => "WAN"); if ((($config['pptpd']['mode'] == "server" )) && !$ipv6rules) $iflist['pptp'] = "PPTP VPN"; if ((($config['l2tp']['mode'] == "server" )) && !$ipv6rules) $iflist['l2tp'] = "L2TP VPN"; if (isset($config['ipsec']['enable'])) $iflist['ipsec'] = "IPsec VPN"; for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) { $iflist['opt' . $i] = $config['interfaces']['opt' . $i]['descr']; } if (!$if || !isset($iflist[$if])) $if = "wan"; if ($_POST) { $pconfig = $_POST; if ($_POST['apply']) { $retval = 0; if (!file_exists($d_sysrebootreqd_path)) { config_lock(); if ($configname == 'rule6') { $retval = filter_configure6(); } else { $retval = filter_configure(true); } config_unlock(); } $savemsg = get_std_save_message($retval); if ($retval == 0) { if (file_exists($d_natconfdirty_path)) unlink($d_natconfdirty_path); if (file_exists($d_filterconfdirty_path)) unlink($d_filterconfdirty_path); } } } if (isset($_POST['del_x'])) { /* delete selected rules */ if (is_array($_POST['rule']) && count($_POST['rule'])) { foreach ($_POST['rule'] as $rulei) { unset($a_filter[$rulei]); } write_config(); touch($d_filterconfdirty_path); header("Location: firewall_rules.php?if={$if}{$typelink}"); exit; } } else { /* yuck - IE won't send value attributes for image buttons, while Mozilla does - so we use .x/.y to find move and toggle button clicks instead... */ unset($movebtn); unset($togglebtn); foreach ($_POST as $pn => $pd) { if (preg_match("/move_(\d+)_x/", $pn, $matches)) { $movebtn = $matches[1]; break; } else if (preg_match("/toggle_(\d+)_x/", $pn, $matches)) { $togglebtn = $matches[1]; break; } } /* move selected rules before this rule */ if (isset($movebtn) && is_array($_POST['rule']) && count($_POST['rule'])) { $a_filter_new = array(); /* copy all rules < $movebtn and not selected */ for ($i = 0; $i < $movebtn; $i++) { if (!in_array($i, $_POST['rule'])) $a_filter_new[] = $a_filter[$i]; } /* copy all selected rules */ for ($i = 0; $i < count($a_filter); $i++) { if ($i == $movebtn) continue; if (in_array($i, $_POST['rule'])) $a_filter_new[] = $a_filter[$i]; } /* copy $movebtn rule */ if ($movebtn < count($a_filter)) $a_filter_new[] = $a_filter[$movebtn]; /* copy all rules > $movebtn and not selected */ for ($i = $movebtn+1; $i < count($a_filter); $i++) { if (!in_array($i, $_POST['rule'])) $a_filter_new[] = $a_filter[$i]; } $a_filter = $a_filter_new; write_config(); touch($d_filterconfdirty_path); header("Location: firewall_rules.php?if={$if}{$typelink}"); exit; } if (isset($togglebtn)) { if ($a_filter[$togglebtn]) { $a_filter[$togglebtn]['disabled'] = !isset($a_filter[$togglebtn]['disabled']); write_config(); touch($d_filterconfdirty_path); header("Location: firewall_rules.php?if={$if}{$typelink}"); exit; } } } ?>

You must apply the changes in order for them to take effect.");?>

    $ifname): if ($ifent == $if): ?>
  • ">
    Proto Source Port Destination Port Description
* Reserved IPv6 networks RFC 1918 networks * * * Block reserved networks Block private networks
move selected rules before this rule edit rule
add a new rule based on this one
"; $textse = ""; $iconfn .= "_d"; } else { $textss = $textse = ""; } ?>
 
edit rule
add a new rule based on this one
No rules are currently defined for this interface.
All incoming connections on this interface will be blocked until you add pass rules.

Click the add new rule button to add a new rule.
           
move selected rules to end
delete selected rules add new rule
pass block reject log
pass (disabled) block (disabled) reject (disabled) log (disabled)

Hint:
Rules are evaluated on a first-match basis (i.e. the action of the first rule to match a packet will be executed). This means that if you use block rules, you'll have to pay attention to the rule order. Everything that isn't explicitly passed is blocked by default.