. 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 (!is_array($config['aliases']['alias'])) $config['aliases']['alias'] = array(); aliases_sort(); $a_aliases = &$config['aliases']['alias']; if ($_POST) { $pconfig = $_POST; if ($_POST['apply']) { $retval = 0; config_lock(); /* reload all components that use aliases */ $retval = filter_configure(); config_unlock(); if(stristr($retval, "error") <> true) $savemsg = get_std_save_message($retval); else $savemsg = $retval; if ($retval == 0) { if (file_exists($d_aliasesdirty_path)) unlink($d_aliasesdirty_path); } } } if ($_GET['act'] == "del") { if ($a_aliases[$_GET['id']]) { /* make sure rule is not being referenced by any nat or filter rules */ $is_alias_referenced = false; $referenced_by = false; $alias_name = $a_aliases[$_GET['id']]['name']; if(is_array($config['nat']['rule'])) { foreach($config['nat']['rule'] as $rule) { if($rule['localip'] == $alias_name) { $is_alias_referenced = true; $referenced_by = $rule['descr']; break; } } } if($is_alias_referenced == false) { if(is_array($config['filter']['rule'])) { foreach($config['filter']['rule'] as $rule) { if($rule['source']['address'] == $alias_name) { $is_alias_referenced = true; $referenced_by = $rule['descr']; break; } if($rule['source']['address'] == $alias_name) { $is_alias_referenced = true; $referenced_by = $rule['descr']; break; } if($rule['source']['port'] == $alias_name) { $is_alias_referenced = true; $referenced_by = $rule['descr']; break; } if($rule['destination']['port'] == $alias_name) { $is_alias_referenced = true; $referenced_by = $rule['descr']; break; } } } } if($is_alias_referenced == false) { if(is_array($config['nat']['rule'])) { foreach($config['nat']['rule'] as $rule) { if($rule['target'] == $alias_name) { $is_alias_referenced = true; $referenced_by = $rule['descr']; break; } if($rule['external-address'] == $alias_name) { $is_alias_referenced = true; $referenced_by = $rule['descr']; break; } if($rule['external-port'] == $alias_name) { $is_alias_referenced = true; $referenced_by = $rule['descr']; break; } if($rule['local-port'] == $alias_name) { $is_alias_referenced = true; $referenced_by = $rule['descr']; break; } } } } if($is_alias_referenced == true) { $savemsg = "Cannot delete rule. Currently in use by {$referenced_by}"; } else { unset($a_aliases[$_GET['id']]); write_config(); filter_configure(); touch($d_aliasesdirty_path); header("Location: firewall_aliases.php"); exit; } } } $pgtitle = array("Firewall","Aliases"); include("head.inc"); ?>

You must apply the changes in order for them to take effect.");?>
Name Values Description
 
 
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Note:
Aliases act as placeholders for real hosts, networks or ports. They can be used to minimize the number of changes that have to be made if a host, network or port changes. You can enter the name of an alias instead of the host, network or port in all fields that have a red background. The alias will be resolved according to the list above. If an alias cannot be resolved (e.g. because you deleted it), the corresponding element (e.g. filter/NAT/shaper rule) will be considered invalid and skipped.