pfsense/usr/local/www/load_balancer_pool_edit.php
2007-03-03 00:07:09 +00:00

518 lines
18 KiB
PHP
Executable File

<?php
/* $Id$ */
/*
load_balancer_pool_edit.php
part of pfSense (http://www.pfsense.com/)
Copyright (C) 2005 Bill Marquette <bill.marquette@gmail.com>.
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['load_balancer']['lbpool'])) {
$config['load_balancer']['lbpool'] = array();
}
$a_pool = &$config['load_balancer']['lbpool'];
if (isset($_POST['id']))
$id = $_POST['id'];
else
$id = $_GET['id'];
if (isset($id) && $a_pool[$id]) {
$pconfig['monitorip'] = $a_pool[$id]['monitorip'];
$pconfig['type'] = $a_pool[$id]['type'];
$pconfig['behaviour'] = $a_pool[$id]['behaviour'];
$pconfig['name'] = $a_pool[$id]['name'];
$pconfig['desc'] = $a_pool[$id]['desc'];
$pconfig['port'] = $a_pool[$id]['port'];
$pconfig['servers'] = &$a_pool[$id]['servers'];
$pconfig['monitor'] = $a_pool[$id]['monitor'];
}
$changedesc = "Load Balancer: Pool: ";
$changecount = 0;
if ($_POST) {
$changecount++;
unset($input_errors);
$pconfig = $_POST;
/* input validation */
if($_POST['type'] == "server") {
$reqdfields = explode(" ", "name port monitor servers");
$reqdfieldsn = explode(",", "Name,Port,Monitor,Server List");
} else {
$reqdfields = explode(" ", "name servers");
$reqdfieldsn = explode(",", "Name,Server List");
}
do_input_validation($_POST, $reqdfields, $reqdfieldsn, &$input_errors);
/* Ensure that our pool names are unique */
for ($i=0; isset($config['load_balancer']['lbpool'][$i]); $i++)
if (($_POST['name'] == $config['load_balancer']['lbpool'][$i]['name']) && ($i != $id))
$input_errors[] = "This pool name has already been used. Pool names must be unique.";
if (!is_port($_POST['port']))
if($_POST['type'] == "server")
$input_errors[] = "The port must be an integer between 1 and 65535.";
if (is_array($_POST['servers'])) {
foreach($pconfig['servers'] as $svrent) {
if (!is_ipaddr($svrent)) {
if($_POST['type'] == "server") {
$input_errors[] = "{$svrent} is not a valid IP address.";
} else {
$split_ip = split("\|", $svrent);
/* if(!is_ipaddr($split_ip[0]))
$input_errors[] = "{$split_ip[0]} is not a valid IP address."; */
if(!is_ipaddr($split_ip[1]))
$input_errors[] = "{$split_ip[1]} is not a valid IP address.";
}
}
}
}
/* make sure that we are not entering a interface ip as a gateway. This creates a routing loop. */
if($_POST['type'] == "gateway") {
$ifdescrs = array ("wan");
for ($j = 1; isset ($config['interfaces']['opt' . $j]); $j++) {
$ifdescrs['opt' . $j] = "opt" . $j;
}
if(is_array($pconfig['servers'])) {
foreach($pconfig['servers'] as $svrent) {
$split_ip = split("\|", $svrent);
foreach($ifdescrs as $iface) {
if($config['interfaces'][$iface]['ipaddr'] <> "")
if($config['interfaces'][$iface]['ipaddr'] == $split_ip[0])
$input_errors[] = "{$split_ip[0]} is currently being referenced by an interface ip address on {$iface}.";
}
}
}
}
if($_POST['type'] == "server") {
if ($_POST['monitor'] != "TCP" && $_POST['monitor'] != "HTTP" && $_POST['monitor'] != "ICMP")
$input_errors[] = "Invalid monitor chosen.";
}
if(!isset($_POST['behaviour'])) {
$input_errors[] = "No pool behaviour chosen.";
}
if (!$input_errors) {
$poolent = array();
if(isset($id) && $a_pool[$id])
$poolent = $a_pool[$id];
if($poolent['name'] != "")
$changedesc .= " modified '{$poolent['name']}' pool:";
/* kill off old static route */
if(is_ipaddr($poolent['monitorip']))
mwexec("route delete {$poolent['monitorip']}");
update_if_changed("type", $poolent['type'], $_POST['type']);
update_if_changed("behaviour", $poolent['behaviour'], $_POST['behaviour']);
update_if_changed("monitorip", $poolent['monitorip'], $_POST['monitorip']);
update_if_changed("name", $poolent['name'], $_POST['name']);
update_if_changed("description", $poolent['desc'], $_POST['desc']);
update_if_changed("port", $poolent['port'], $_POST['port']);
update_if_changed("servers", $poolent['servers'], $_POST['servers']);
update_if_changed("monitor", $poolent['monitor'], $_POST['monitor']);
if (isset($id) && $a_pool[$id]) {
/* modify all virtual servers with this name */
for ($i = 0; isset($config['load_balancer']['virtual_server'][$i]); $i++) {
if ($config['load_balancer']['virtual_server'][$i]['pool'] == $a_pool[$id]['name'])
$config['load_balancer']['virtual_server'][$i]['pool'] = $poolent['name'];
}
$a_pool[$id] = $poolent;
} else
$a_pool[] = $poolent;
if ($changecount > 0) {
/* Mark pool dirty */
conf_mount_rw();
touch($d_vsconfdirty_path);
write_config($changedesc);
}
header("Location: load_balancer_pool.php");
exit;
}
}
function get_interface_info($ifdescr) {
global $config, $linkinfo, $netstatrninfo;
$ifinfo = array();
/* find out interface name */
$ifinfo['hwif'] = $config['interfaces'][$ifdescr]['if'];
if ($ifdescr == "wan")
$ifinfo['if'] = get_real_wan_interface();
else
$ifinfo['if'] = $ifinfo['hwif'];
/* run netstat to determine link info */
unset($linkinfo);
exec("/usr/bin/netstat -I " . $ifinfo['hwif'] . " -nWb -f link", $linkinfo);
$linkinfo = preg_split("/\s+/", $linkinfo[1]);
if (preg_match("/\*$/", $linkinfo[0])) {
$ifinfo['status'] = "down";
} else {
$ifinfo['status'] = "up";
}
/* PPPoE interface? -> get status from virtual interface */
if (($ifdescr == "wan") && ($config['interfaces']['wan']['ipaddr'] == "pppoe")) {
unset($linkinfo);
exec("/usr/bin/netstat -I " . $ifinfo['if'] . " -nWb -f link", $linkinfo);
$linkinfo = preg_split("/\s+/", $linkinfo[1]);
if (preg_match("/\*$/", $linkinfo[0])) {
$ifinfo['pppoelink'] = "down";
} else {
/* get PPPoE link status for dial on demand */
$ifconfiginfo = "";
unset($ifconfiginfo);
exec("/sbin/ifconfig " . $ifinfo['if'], $ifconfiginfo);
$ifinfo['pppoelink'] = "up";
foreach ($ifconfiginfo as $ici) {
if (strpos($ici, 'LINK0') !== false)
$ifinfo['pppoelink'] = "down";
}
}
}
/* PPTP interface? -> get status from virtual interface */
if (($ifdescr == "wan") && ($config['interfaces']['wan']['ipaddr'] == "pptp")) {
unset($linkinfo);
exec("/usr/bin/netstat -I " . $ifinfo['if'] . " -nWb -f link", $linkinfo);
$linkinfo = preg_split("/\s+/", $linkinfo[1]);
if (preg_match("/\*$/", $linkinfo[0])) {
$ifinfo['pptplink'] = "down";
} else {
/* get PPTP link status for dial on demand */
unset($ifconfiginfo);
exec("/sbin/ifconfig " . $ifinfo['if'], $ifconfiginfo);
$ifinfo['pptplink'] = "up";
foreach ($ifconfiginfo as $ici) {
if (strpos($ici, 'LINK0') !== false)
$ifinfo['pptplink'] = "down";
}
}
}
if ($ifinfo['status'] == "up") {
/* try to determine media with ifconfig */
$matches = "";
if ($ifinfo['pppoelink'] != "down" && $ifinfo['pptplink'] != "down") {
/* try to determine IP address and netmask with ifconfig */
unset($ifconfiginfo);
exec("/sbin/ifconfig " . $ifinfo['if'], $ifconfiginfo);
foreach ($ifconfiginfo as $ici) {
if (preg_match("/inet (\S+)/", $ici, $matches)) {
$ifinfo['ipaddr'] = $matches[1];
}
if (preg_match("/netmask (\S+)/", $ici, $matches)) {
if (preg_match("/^0x/", $matches[1]))
$ifinfo['subnet'] = long2ip(hexdec($matches[1]));
}
}
if ($ifdescr == "wan") {
/* run netstat to determine the default gateway */
unset($netstatrninfo);
exec("/usr/bin/netstat -rnf inet", $netstatrninfo);
foreach ($netstatrninfo as $nsr) {
if (preg_match("/^default\s*(\S+)/", $nsr, $matches)) {
$ifinfo['gateway'] = $matches[1];
}
}
} else {
/* deterimine interface gateway */
$int = convert_friendly_interface_to_real_interface_name($ifdescr);
$gw = get_interface_gateway($int);
if($gw)
$ifinfo['gateway'] = $gw;
}
}
}
return $ifinfo;
}
$pgtitle = "Load Balancer: Pool: Edit";
include("head.inc");
?>
<body link="#0000CC" vlink="#0000CC" alink="#0000CC">
<script type="text/javascript" language="javascript" src="pool.js"></script>
<script language="javascript">
function gateway_change()
{
if (document.iform.gatewayip.options[document.iform.gatewayip.selectedIndex].value == "other")
{
//document.iform.monitorip.value = "";
document.iform.monitorip.style.display = "block";
}
else
{
document.iform.monitorip.value = document.iform.gatewayip.options[document.iform.gatewayip.selectedIndex].value;
document.iform.monitorip.style.display = "none";
}
}
function type_change(enable_change) {
switch (document.iform.type.selectedIndex) {
case 0:
// Server;
//clearcombo();
document.iform.gatewayip.disabled = 1;
document.iform.ipaddr.style.display = "block";
document.iform.interface.style.display = "none";
document.iform.serversSelect.clear;
document.iform.monitorip.disabled = 1;
var monitorIpNote = document.getElementById("monitorIpNote");
monitorIpNote.disabled = 1;
var monitorip_text = document.getElementById("monitorip_text");
monitorip_text.className = "vncell";
monitorip_text.disabled = 1;
var monitorport_text = document.getElementById("monitorport_text");
monitorport_text.className = "vncellreq";
monitorport_text.disabled = 0;
document.getElementById("monitorport_desc").disabled = 0;
document.iform.monitorip.value = "";
document.iform.port.disabled = 0;
document.iform.monitor.selectedIndex = 0;
document.iform.monitor.disabled = 0;
var interfacename_text = document.getElementById("interfacename_text");
interfacename_text.innerHTML = "Server IP Address";
var interfacename_desc = document.getElementById("interfacename_desc");
interfacename_desc.innerHTML = "Enter the IP Address of the inbound load balanced server here.";
break;
case 1:
// Gateway;
//clearcombo();
document.iform.gatewayip.disabled = 0;
document.iform.ipaddr.style.display = "none";
document.iform.interface.style.display = "block";
document.iform.monitorip.disabled = 0;
document.iform.monitorip.value = "";
var monitorIpNote = document.getElementById("monitorIpNote");
monitorIpNote.disabled = 0;
var monitorip_text = document.getElementById("monitorip_text");
monitorip_text.className = "vncellreq";
monitorip_text.disabled = 0;
var monitorport_text = document.getElementById("monitorport_text");
monitorport_text.className = "vncell";
monitorport_text.disabled = 1;
document.getElementById("monitorport_desc").disabled = 1;
document.iform.port.disabled = 1;
// set to ICMP
document.iform.monitor.selectedIndex = 1;
document.iform.monitor.disabled = 1;
var interfacename_text = document.getElementById("interfacename_text");
interfacename_text.innerHTML = "Interface Name";
var interfacename_desc = document.getElementById("interfacename_desc");
interfacename_desc.innerHTML = "Select the Interface to be used for outbound load balancing.";
break;
}
}
function clearcombo(){
for (var i=document.iform.serversSelect.options.length-1; i>=0; i--){
document.iform.serversSelect.options[i] = null;
}
document.iform.serversSelect.selectedIndex = -1;
}
</script>
<?php include("fbegin.inc"); ?>
<p class="pgtitle"><?=$pgtitle?></p>
<?php if ($input_errors) print_input_errors($input_errors); ?>
<form action="load_balancer_pool_edit.php" method="post" name="iform" id="iform">
<table width="100%" border="0" cellpadding="6" cellspacing="0">
<tr align="left">
<td width="22%" valign="top" class="vncellreq">Name</td>
<td width="78%" class="vtable" colspan="2">
<input name="name" type="text" <?if(isset($pconfig['name'])) echo "value=\"{$pconfig['name']}\"";?> size="16" maxlength="16">
</td>
</tr>
<tr align="left">
<td width="22%" valign="top" class="vncellreq">Description</td>
<td width="78%" class="vtable" colspan="2">
<input name="desc" type="text" <?if(isset($pconfig['desc'])) echo "value=\"{$pconfig['desc']}\"";?>size="64">
</td>
</tr>
<tr align="left">
<td width="22%" valign="top" class="vncellreq">Type</td>
<td width="78%" class="vtable" colspan="2">
<select name="type" id="type" onchange="type_change();">
<option value="server"<?php if($pconfig['type'] == "server") echo " SELECTED"; ?>>Server</option>
<option value="gateway"<?php if($pconfig['type'] == "gateway") echo " SELECTED"; ?>>Gateway</option>
</select>
</td>
</tr>
<tr align="left">
<td width="22%" valign="top" class="vncellreq"><?=gettext("Behaviour");?></td>
<td width="78%" class="vtable" colspan="2">
<input type="radio" name="behaviour" id="behaviour" value="balance"<?php if($pconfig['behaviour'] ==
"balance") echo " CHECKED"; ?>><?=gettext("Load Balancing");?><br>
<input type="radio" name="behaviour" id="behaviour" value="failover"<?php if($pconfig['behaviour'] ==
"failover") echo " CHECKED"; ?>><?=gettext("Failover");?><br>
Load Balancing: both active. Failover order: top -> down.
</td>
</tr>
<tr align="left">
<td width="22%" valign="top" id="monitorport_text" class="vncellreq">Port</td>
<td width="78%" class="vtable" colspan="2">
<input name="port" type="text" <?if(isset($pconfig['port'])) echo "value=\"{$pconfig['port']}\"";?> size="16" maxlength="16"><br>
<div id="monitorport_desc">This is the port your servers are listening too.</div>
</td>
</tr>
<tr align="left">
<td width="22%" valign="top" class="vncellreq">Monitor</td>
<td width="78%" class="vtable" colspan="2">
<select id="monitor" name="monitor">
<option value="TCP"<?php if($pconfig['monitor'] == "TCP") echo " SELECTED"; ?>>TCP</option>
<option value="ICMP"<?php if($pconfig['monitor'] == "ICMP") echo " SELECTED"; ?>>ICMP</option>
<!-- billm - XXX: add HTTP/HTTPS here -->
</select>
</td>
</tr>
<tr align="left">
<td width="22%" valign="top" id="monitorip_text" class="vncell">Monitor IP</td>
<td width="78%" class="vtable" colspan="2">
<div style="float: none;">
<select id="gatewayip" name="gatewayip" onchange="gateway_change();" style="float: left;">
<?php
$interfaces = array('wan' => 'WAN');
for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
$interfaces['opt' . $i] = $config['interfaces']['opt' . $i]['descr'];
}
foreach ($interfaces as $iface => $ifacename) {
$ifinfo = get_interface_info($iface);
if(isset($ifinfo['gateway'])) { ?>
<option value="<?=$ifinfo['gateway'];?>"><?=htmlspecialchars($ifacename);?>'s Gateway</option>
<?php }
}
$dns_servers = get_dns_servers();
$iDns = 1;
foreach($dns_servers as $dns) { ?>
<option value="<?=$dns;?>">DNS Server <?=$iDns;?> (<?=$dns;?>)</option>
<?php $iDns++;
}
?>
<option value="other" selected>other</option>
</select>
<input size="16" id="monitorip" name="monitorip" value="<?php echo $pconfig['monitorip']; ?>" style="float: left;">
</div><br><br>
<div id="monitorIpNote" style="float: none;">Note: Some gateways have ping capability disabled.</div>
</td>
</tr>
<tr align="left">
<td width="22%" valign="top" class="vncellreq"><div id="interfacename_text"></div></td>
<td width="78%" class="vtable" colspan="2">
<input name="ipaddr" type="text" size="16" style="float: left;">
<select id="interface" name="interface" style="float: left; display: none;">
<?php
$interfaces = array('wan' => 'WAN', 'lan' => 'LAN');
for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
$interfaces['opt' . $i] = $config['interfaces']['opt' . $i]['descr'];
}
foreach ($interfaces as $iface => $ifacename) {
$ifinfo = get_interface_info($iface);
if(isset($ifinfo['gateway'])) { ?>
<option value="<?=$iface;?>"><?=htmlspecialchars($ifacename);?></option>
<?php }
} ?>
</select>
<input class="formbtn" type="button" name="button1" value="Add to pool" onclick="AddServerToPool(document.iform);"><br>
<div id="interfacename_desc"></div>
</td>
</tr>
<tr>
<td width="22%" valign="top" class="vncellreq">List</td>
<td width="78%" class="vtable" colspan="2" valign="top">
<table>
<tbody>
<tr>
<td>
<select id="serversSelect" name="servers[]" multiple="true" size="5">
<?php
if (is_array($pconfig['servers'])) {
foreach($pconfig['servers'] as $svrent) {
echo " <option value=\"{$svrent}\">{$svrent}</option>\n";
}
}
echo "</select>";
?>
</td>
<td valign="top">
<input class="formbtn" type="button" name="button2" value="Remove from pool" onclick="RemoveServerFromPool(document.iform);">
</td>
</tr>
</tbody>
</table>
</td>
</tr>
<tr align="left">
<td width="22%" valign="top">&nbsp;</td>
<td width="78%">
<input name="Submit" type="submit" class="formbtn" value="Save" onClick="AllServers('serversSelect', true)">
<?php if (isset($id) && $a_pool[$id]): ?>
<input name="id" type="hidden" value="<?=$id;?>">
<?php endif; ?>
</td>
</tr>
</table>
</form>
<br>
<script language="javascript">
type_change();
gateway_change();
</script>
<?php include("fend.inc"); ?>
</body>
</html>