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<?php
/*
* interfaces_gre_edit.php
*
* part of pfSense (https://www.pfsense.org)
* Copyright (c) 2004-2016 Electric Sheep Fencing, LLC
* 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.
*
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgment:
* "This product includes software developed by the pfSense Project
* for use in the pfSense® software distribution. (http://www.pfsense.org/).
*
* 4. The names "pfSense" and "pfSense Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* coreteam@pfsense.org.
*
* 5. Products derived from this software may not be called "pfSense"
* nor may "pfSense" appear in their names without prior written
* permission of the Electric Sheep Fencing, LLC.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
*
* "This product includes software developed by the pfSense Project
* for use in the pfSense software distribution (http://www.pfsense.org/).
*
* THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 pfSense PROJECT OR
* ITS CONTRIBUTORS 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-interfaces-gre-edit
##|*NAME=Interfaces: GRE: Edit
##|*DESCR=Allow access to the 'Interfaces: GRE: Edit' page.
##|*MATCH=interfaces_gre_edit.php*
##|-PRIV
require_once("guiconfig.inc");
require_once("functions.inc");
if (!is_array($config['gres']['gre'])) {
$config['gres']['gre'] = array();
}
$a_gres = &$config['gres']['gre'];
if (is_numericint($_GET['id'])) {
$id = $_GET['id'];
}
if (isset($_POST['id']) && is_numericint($_POST['id'])) {
$id = $_POST['id'];
}
if (isset($id) && $a_gres[$id]) {
$pconfig['if'] = $a_gres[$id]['if'];
$pconfig['greif'] = $a_gres[$id]['greif'];
$pconfig['remote-addr'] = $a_gres[$id]['remote-addr'];
$pconfig['tunnel-remote-net'] = $a_gres[$id]['tunnel-remote-net'];
$pconfig['tunnel-local-addr'] = $a_gres[$id]['tunnel-local-addr'];
$pconfig['tunnel-remote-addr'] = $a_gres[$id]['tunnel-remote-addr'];
$pconfig['link1'] = isset($a_gres[$id]['link1']);
$pconfig['link2'] = isset($a_gres[$id]['link2']);
$pconfig['link0'] = isset($a_gres[$id]['link0']);
$pconfig['descr'] = $a_gres[$id]['descr'];
}
if ($_POST) {
unset($input_errors);
$pconfig = $_POST;
/* input validation */
$reqdfields = explode(" ", "if remote-addr tunnel-local-addr tunnel-remote-addr tunnel-remote-net");
$reqdfieldsn = array(gettext("Parent interface"), gettext("Remote tunnel endpoint IP address"), gettext("Local tunnel IP address"), gettext("Remote tunnel IP address"), gettext("Remote tunnel network"));
do_input_validation($_POST, $reqdfields, $reqdfieldsn, $input_errors);
if ((!is_ipaddr($_POST['tunnel-local-addr'])) ||
(!is_ipaddr($_POST['tunnel-remote-addr'])) ||
(!is_ipaddr($_POST['remote-addr']))) {
$input_errors[] = gettext("The tunnel local and tunnel remote fields must have valid IP addresses.");
}
if (!is_numericint($_POST['tunnel-remote-net'])) {
$input_errors[] = gettext("The GRE tunnel subnet must be an integer.");
}
if (is_ipaddrv4($_POST['tunnel-local-addr'])) {
if (!is_ipaddrv4($_POST['tunnel-remote-addr'])) {
$input_errors[] = gettext("The GRE Tunnel remote address must be IPv4 where tunnel local address is IPv4.");
}
if ($_POST['tunnel-remote-net'] > 32 || $_POST['tunnel-remote-net'] < 1) {
$input_errors[] = gettext("The GRE tunnel subnet must be an integer between 1 and 32.");
}
}
if (is_ipaddrv6($_POST['tunnel-local-addr'])) {
if (!is_ipaddrv6($_POST['tunnel-remote-addr'])) {
$input_errors[] = gettext("The GRE Tunnel remote address must be IPv6 where tunnel local address is IPv6.");
}
if ($_POST['tunnel-remote-net'] > 128 || $_POST['tunnel-remote-net'] < 1) {
$input_errors[] = gettext("The GRE tunnel subnet must be an integer between 1 and 128.");
}
}
foreach ($a_gres as $gre) {
if (isset($id) && ($a_gres[$id]) && ($a_gres[$id] === $gre)) {
continue;
}
if (($gre['if'] == $_POST['if']) && ($gre['tunnel-remote-addr'] == $_POST['tunnel-remote-addr'])) {
$input_errors[] = sprintf(gettext("A GRE tunnel with the network %s is already defined."), $gre['remote-network']);
break;
}
}
if (!$input_errors) {
$gre = array();
$gre['if'] = $_POST['if'];
$gre['tunnel-local-addr'] = $_POST['tunnel-local-addr'];
$gre['tunnel-remote-addr'] = $_POST['tunnel-remote-addr'];
$gre['tunnel-remote-net'] = $_POST['tunnel-remote-net'];
$gre['remote-addr'] = $_POST['remote-addr'];
$gre['descr'] = $_POST['descr'];
if (isset($_POST['link1'])) {
$gre['link1'] = '';
}
$gre['greif'] = $_POST['greif'];
$gre['greif'] = interface_gre_configure($gre);
if ($gre['greif'] == "" || !stristr($gre['greif'], "gre")) {
$input_errors[] = gettext("Error occurred creating interface, please retry.");
} else {
if (isset($id) && $a_gres[$id]) {
$a_gres[$id] = $gre;
} else {
$a_gres[] = $gre;
}
write_config();
$confif = convert_real_interface_to_friendly_interface_name($gre['greif']);
if ($confif != "") {
interface_configure($confif);
}
header("Location: interfaces_gre.php");
exit;
}
}
}
function build_parent_list() {
$parentlist = array();
$portlist = get_possible_listen_ips();
foreach ($portlist as $ifn => $ifinfo) {
$parentlist[$ifn] = $ifinfo;
}
return($parentlist);
}
$pgtitle = array(gettext("Interfaces"), gettext("GREs"), gettext("Edit"));
$shortcut_section = "interfaces";
include("head.inc");
if ($input_errors) {
print_input_errors($input_errors);
}
$form = new Form();
$section = new Form_Section('GRE Configuration');
$section->addInput(new Form_Select(
'if',
'Parent Interface',
$pconfig['if'],
build_parent_list()
))->setHelp('This interface serves as the local address to be used for the GRE tunnel.');
$section->addInput(new Form_IpAddress(
'remote-addr',
'GRE Remote Address',
$pconfig['remote-addr']
))->setHelp('Peer address where encapsulated GRE packets will be sent.');
$section->addInput(new Form_IpAddress(
'tunnel-local-addr',
'GRE tunnel local address',
$pconfig['tunnel-local-addr']
))->setHelp('Local GRE tunnel endpoint.');
$section->addInput(new Form_IpAddress(
'tunnel-remote-addr',
'GRE tunnel remote address',
$pconfig['tunnel-remote-addr']
))->setHelp('Remote GRE address endpoint.');
$section->addInput(new Form_Select(
'tunnel-remote-net',
'GRE tunnel subnet',
$pconfig['tunnel-remote-net'],
array_combine(range(128, 1, -1), range(128, 1, -1))
))->setHelp('The subnet is used for determining the network that is tunnelled.');
$section->addInput(new Form_Checkbox(
'link1',
'Add Static Route',
'Add an explicit static route for the remote inner tunnel address/subnet via the local tunnel address',
$pconfig['link1']
));
$section->addInput(new Form_Input(
'descr',
'Description',
'text',
$pconfig['descr']
))->setHelp('A description may be entered here for administrative reference (not parsed).');
$section->addInput(new Form_Input(
'greif',
null,
'hidden',
$pconfig['greif']
));
if (isset($id) && $a_gres[$id]) {
$section->addInput(new Form_Input(
'id',
null,
'hidden',
$id
));
}
$form->add($section);
print($form);
include("foot.inc");
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