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5b237745
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Scott Ullrich
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<?php
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/*
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openvpn.inc
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Copyright (C) 2004 Peter Curran (peter@closeconsultants.com).
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afb07cf1
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Scott Ullrich
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Copyright (C) 2005 Peter Allgeyer (allgeyer@web.de).
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5b237745
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Scott Ullrich
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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*/
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/* include all configuration functions */
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require_once("globals.inc");
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require_once("config.inc");
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require_once("functions.inc");
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3c2e5528
|
Scott Ullrich
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function ovpn_configure($reconfigure) {
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5b237745
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Scott Ullrich
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global $config;
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if (is_array($config['ovpn']['server']))
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afb07cf1
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Scott Ullrich
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ovpn_server_crl_add();
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ovpn_server_ccd_add();
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3c2e5528
|
Scott Ullrich
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ovpn_config_server($reconfigure);
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5b237745
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Scott Ullrich
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if (is_array($config['ovpn']['client']))
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ovpn_config_client();
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return;
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}
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function ovpn_link_tap() {
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/* Add a reference to the tap KLM. If ref count = 1, load it */
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global $g;
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if (!is_file($g['vardb_path'] ."/ovpn_tap_link")){
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$link_count = 1;
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mwexec("/sbin/kldload if_tap");
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$fd = fopen($g['vardb_path'] ."/ovpn_tap_link", 'w');
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}
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return true;
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}
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function ovpn_unlink_tap() {
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/* Remove a reference to the tap KLM. If ref count = 0, unload it */
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global $g;
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if (!is_file($g['vardb_path'] ."/ovpn_tap_link"))
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return false; //no file, no links so why are we called?
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$fd = fopen($g['vardb_path'] ."/ovpn_tap_link", 'r+');
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afb07cf1
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Scott Ullrich
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$link_count = fread($fd, filesize($g['vardb_path'] ."/ovpn_tap_link"));
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$link_count--;
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5b237745
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Scott Ullrich
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fwrite($fd, $link_count);
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fclose($fd);
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if ($link_count == 0)
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mwexec("/sbin/kldunload if_tap");
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return true;
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}
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/*****************************/
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3c2e5528
|
Scott Ullrich
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/* Server related functions */
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/*****************************/
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5b237745
|
Scott Ullrich
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3c2e5528
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Scott Ullrich
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/* Configure the server */
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function ovpn_config_server($reconfigure) {
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afb07cf1
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Scott Ullrich
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global $config, $g, $d_ovpnsrvdirty_path;
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3c2e5528
|
Scott Ullrich
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2fe54e17
|
Scott Ullrich
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if($config['ovpn']['server']['tunnel'])
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3c2e5528
|
Scott Ullrich
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foreach ($config['ovpn']['server']['tunnel'] as $id => $server) {
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/* get tunnel interface */
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$tun = $server['tun_iface'];
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if (isset($server['enable'])) {
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afb07cf1
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Scott Ullrich
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if ($g['booting']) {
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3c2e5528
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Scott Ullrich
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echo "Starting OpenVPN server $id... ";
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afb07cf1
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Scott Ullrich
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/* define configuration options */
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ovpn_srv_config_generate($id);
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/* Start the openvpn daemon */
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mwexec("/usr/local/sbin/openvpn {$g['varetc_path']}/ovpn_srv_{$tun}.conf");
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/* Send the boot message */
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echo "done\n";
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/* next server */
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continue;
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}
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3c2e5528
|
Scott Ullrich
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/* send SIGUSR1 to running openvpn daemon */
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if ( $reconfigure == "true" && isset($server['dynip'])) {
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sigkillbypid($g['varrun_path']."/ovpn_srv_{$tun}.pid", "SIGUSR1");
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continue;
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}
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afb07cf1
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Scott Ullrich
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/* read dirtyfile */
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if (is_readable($d_ovpnsrvdirty_path))
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$lines = file($d_ovpnsrvdirty_path);
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/* reconfigure server */
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bc5dc421
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Scott Ullrich
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if (is_array($lines) && in_array($tun . "\n", $lines)) {
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afb07cf1
|
Scott Ullrich
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/* kill running server */
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ovpn_server_kill($tun);
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/* remove old certs & keys */
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ovpn_server_certs_del($tun);
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3c2e5528
|
Scott Ullrich
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afb07cf1
|
Scott Ullrich
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/* define configuration options */
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ovpn_srv_config_generate($id);
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707e9964
|
Scott Ullrich
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}
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3c2e5528
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Scott Ullrich
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/* Start the openvpn daemon */
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afb07cf1
|
Scott Ullrich
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if (!is_readable("{$g['varrun_path']}/ovpn_srv_{$tun}.pid"))
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mwexec("/usr/local/sbin/openvpn {$g['varetc_path']}/ovpn_srv_{$tun}.conf");
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3c2e5528
|
Scott Ullrich
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afb07cf1
|
Scott Ullrich
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/* next server */
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continue;
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3c2e5528
|
Scott Ullrich
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}
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afb07cf1
|
Scott Ullrich
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/* server disabled */
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if (!$g['booting']) {
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/* kill running server */
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ovpn_server_kill($tun);
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/* Remove old certs & keys */
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ovpn_server_certs_del($tun);
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/* stop any processes, unload the tap module */
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//if ($server['type'] == "tap")
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// ovpn_unlink_tap();
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5b237745
|
Scott Ullrich
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}
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}
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return 0;
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}
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3c2e5528
|
Scott Ullrich
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/* Kill off a running server process */
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afb07cf1
|
Scott Ullrich
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function ovpn_server_certs_del($tun) {
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3c2e5528
|
Scott Ullrich
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global $g;
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/* Remove old certs & keys */
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unlink_if_exists("{$g['vardb_path']}/ovpn_ca_cert_{$tun}.pem");
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unlink_if_exists("{$g['vardb_path']}/ovpn_srv_cert_{$tun}.pem");
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unlink_if_exists("{$g['vardb_path']}/ovpn_srv_key_{$tun}.pem");
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unlink_if_exists("{$g['vardb_path']}/ovpn_dh_{$tun}.pem");
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707e9964
|
Scott Ullrich
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unlink_if_exists("{$g['vardb_path']}/ovpn_srv_psk_{$tun}.pem");
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afb07cf1
|
Scott Ullrich
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unlink_if_exists("{$g['varetc_path']}/ovpn_srv_up_{$tun}.sh");
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unlink_if_exists("{$g['varetc_path']}/ovpn_srv_{$tun}.conf");
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3c2e5528
|
Scott Ullrich
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return 0;
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}
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afb07cf1
|
Scott Ullrich
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/* Kill off a running server process */
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function ovpn_server_kill($tun) {
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global $g;
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/* kill running server */
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killbypid("{$g['varrun_path']}/ovpn_srv_{$tun}.pid");
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}
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5b237745
|
Scott Ullrich
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/* Generate the config for a OpenVPN server */
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3c2e5528
|
Scott Ullrich
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function ovpn_srv_config_generate($id) {
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5b237745
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Scott Ullrich
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global $config, $g;
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3c2e5528
|
Scott Ullrich
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$server = $config['ovpn']['server']['tunnel'][$id];
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/* get tunnel interface */
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$tun = $server['tun_iface'];
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707e9964
|
Scott Ullrich
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/* get optional interface name */
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$iface = ovpn_get_opt_interface($tun);
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afb07cf1
|
Scott Ullrich
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/* Copy the TLS-Server certs & keys to disk */
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if ($server['authentication_method'] != "pre_shared_key" ) {
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$fd = fopen("{$g['vardb_path']}/ovpn_ca_cert_{$tun}.pem", "w");
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if ($fd) {
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fwrite($fd, base64_decode($server['ca_cert'])."\n");
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fclose($fd);
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}
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$fd = fopen("{$g['vardb_path']}/ovpn_srv_cert_{$tun}.pem", "w");
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if ($fd) {
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fwrite($fd, base64_decode($server['srv_cert'])."\n");
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fclose($fd);
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}
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touch ("{$g['vardb_path']}/ovpn_srv_key_{$tun}.pem");
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chmod ("{$g['vardb_path']}/ovpn_srv_key_{$tun}.pem", 0600);
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$fd = fopen("{$g['vardb_path']}/ovpn_srv_key_{$tun}.pem", "w");
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if ($fd) {
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fwrite($fd, base64_decode($server['srv_key'])."\n");
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fclose($fd);
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}
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$fd = fopen("{$g['vardb_path']}/ovpn_dh_{$tun}.pem", "w");
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if ($fd) {
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fwrite($fd, base64_decode($server['dh_param'])."\n");
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fclose($fd);
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}
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}
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if ($server['authentication_method'] == "pre_shared_key" || isset($server['tlsauth'])) {
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touch ("{$g['vardb_path']}/ovpn_srv_psk_{$tun}.pem");
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chmod ("{$g['vardb_path']}/ovpn_srv_psk_{$tun}.pem", 0600);
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$fd = fopen("{$g['vardb_path']}/ovpn_srv_psk_{$tun}.pem", "w");
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if ($fd) {
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fwrite($fd, base64_decode($server['pre-shared-key'])."\n");
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fclose($fd);
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}
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}
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| 230 |
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$fd = fopen("{$g['varetc_path']}/ovpn_srv_{$tun}.conf", "w");
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if (!$fd) {
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printf("Error: cannot open ovpn_srv_{$tun}.conf in ovpn_srv_config_generate($id).\n");
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return 1;
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}
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| 236 |
5b237745
|
Scott Ullrich
|
/* First the generic stuff:
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- We are a server
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| 238 |
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- We will run without privilege
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*/
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| 240 |
afb07cf1
|
Scott Ullrich
|
$ovpn_config = "";
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| 241 |
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$ovpn_config .= <<<EOD
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| 242 |
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daemon
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| 243 |
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user nobody
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| 244 |
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group nobody
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| 245 |
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verb {$server['verb']}
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| 246 |
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persist-tun
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| 247 |
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persist-key
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| 248 |
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status /var/log/openvpn_{$tun}.log 60
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| 249 |
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writepid {$g['varrun_path']}/ovpn_srv_{$tun}.pid
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| 250 |
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dev {$server['tun_iface']}
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| 251 |
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port {$server['port']}
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| 252 |
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cipher {$server['crypto']}
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| 253 |
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| 254 |
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EOD;
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| 255 |
3c2e5528
|
Scott Ullrich
|
|
| 256 |
a068feb2
|
Scott Ullrich
|
/* Set protocol being used (p = udp (default), tcp-server) */
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| 257 |
afb07cf1
|
Scott Ullrich
|
if ($server['proto'] == "tcp")
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| 258 |
|
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$ovpn_config .= "proto tcp-server\n";
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| 259 |
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| 260 |
5b237745
|
Scott Ullrich
|
/* Interface binding - 1 or all */
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| 261 |
afb07cf1
|
Scott Ullrich
|
if ($server['bind_iface'] != 'all')
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| 262 |
5b237745
|
Scott Ullrich
|
if ($ipaddr = ovpn_get_ip($server['bind_iface']))
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| 263 |
afb07cf1
|
Scott Ullrich
|
$ovpn_config .= "local {$ipaddr}\n";
|
| 264 |
3c2e5528
|
Scott Ullrich
|
|
| 265 |
|
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/* are we using dynamic ip addresses? */
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| 266 |
|
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if (isset($server['dynip']))
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| 267 |
afb07cf1
|
Scott Ullrich
|
$ovpn_config .= "persist-remote-ip\n";
|
| 268 |
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| 269 |
bc5dc421
|
Scott Ullrich
|
/* LZO compression (off by default) */
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| 270 |
|
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if (isset($server['comp_method'])) {
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| 271 |
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switch ($server['comp_method']) {
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| 272 |
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| 273 |
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case 'lzo':
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| 274 |
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$ovpn_config .= "comp-lzo\n";
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| 275 |
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break;
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| 276 |
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case 'noadapt':
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| 277 |
|
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$ovpn_config .= "comp-lzo\n" . "comp-noadapt\n";
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| 278 |
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break;
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| 279 |
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}
|
| 280 |
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}
|
| 281 |
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| 282 |
5b237745
|
Scott Ullrich
|
/* Client to client routing (off by default) */
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| 283 |
|
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if (isset($server['cli2cli']))
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| 284 |
afb07cf1
|
Scott Ullrich
|
$ovpn_config .= "client-to-client\n";
|
| 285 |
707e9964
|
Scott Ullrich
|
|
| 286 |
afb07cf1
|
Scott Ullrich
|
/* Limit server to a maximum of n concurrent clients. */
|
| 287 |
|
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if (!empty($server['maxcli']))
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| 288 |
|
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$ovpn_config .= "max-clients {$server['maxcli']}\n";
|
| 289 |
707e9964
|
Scott Ullrich
|
|
| 290 |
afb07cf1
|
Scott Ullrich
|
/* Authentication method */
|
| 291 |
|
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if ($server['authentication_method'] != "pre_shared_key") {
|
| 292 |
707e9964
|
Scott Ullrich
|
|
| 293 |
afb07cf1
|
Scott Ullrich
|
$ovpn_config .= <<<EOD
|
| 294 |
|
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client-config-dir {$g['vardb_path']}/ccd
|
| 295 |
|
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ca {$g['vardb_path']}/ovpn_ca_cert_{$tun}.pem
|
| 296 |
|
|
cert {$g['vardb_path']}/ovpn_srv_cert_{$tun}.pem
|
| 297 |
|
|
key {$g['vardb_path']}/ovpn_srv_key_{$tun}.pem
|
| 298 |
|
|
dh {$g['vardb_path']}/ovpn_dh_{$tun}.pem
|
| 299 |
|
|
|
| 300 |
|
|
EOD;
|
| 301 |
|
|
|
| 302 |
|
|
/* CRL list */
|
| 303 |
|
|
if (isset($server['crlname']) &&
|
| 304 |
|
|
is_readable("{$g['vardb_path']}/{$server['crlname']}.crl.pem")) {
|
| 305 |
|
|
$ovpn_config .= "crl-verify {$g['vardb_path']}/{$server['crlname']}.crl.pem\n";
|
| 306 |
707e9964
|
Scott Ullrich
|
}
|
| 307 |
afb07cf1
|
Scott Ullrich
|
|
| 308 |
|
|
/* TLS auth */
|
| 309 |
|
|
if (isset($server['tlsauth']))
|
| 310 |
|
|
$ovpn_config .= "tls-auth {$g['vardb_path']}/ovpn_srv_psk_{$tun}.pem 0\n";
|
| 311 |
|
|
|
| 312 |
|
|
/* bridging enabled? */
|
| 313 |
|
|
if ($server['bridge'] && $server['type'] == "tap") {
|
| 314 |
|
|
if ($server['method'] == "ovpn") {
|
| 315 |
|
|
$netmask = gen_subnet_mask($config['interfaces'][$server['bridge']]['subnet']);
|
| 316 |
|
|
$ovpn_config .= "server-bridge {$server['gateway']} {$netmask} {$server['range_from']} {$server['range_to']}\n";
|
| 317 |
|
|
} else {
|
| 318 |
|
|
$ovpn_config .= <<<EOD
|
| 319 |
|
|
mode server
|
| 320 |
|
|
tls-server
|
| 321 |
|
|
|
| 322 |
|
|
EOD;
|
| 323 |
|
|
}
|
| 324 |
|
|
|
| 325 |
|
|
$lastdigits = substr($tun, 3) + 2;
|
| 326 |
|
|
$ovpn_srv_up = "/sbin/ifconfig " . $tun . " 127.0.0." . $lastdigits . "/32\n";
|
| 327 |
|
|
|
| 328 |
|
|
$fdo = fopen("{$g['varetc_path']}/ovpn_srv_up_{$tun}.sh", "w");
|
| 329 |
|
|
if ($fdo) {
|
| 330 |
|
|
fwrite($fdo, $ovpn_srv_up);
|
| 331 |
|
|
fclose($fdo);
|
| 332 |
|
|
chmod ("{$g['varetc_path']}/ovpn_srv_up_{$tun}.sh", 0755);
|
| 333 |
|
|
$ovpn_config .= "up /var/etc/ovpn_srv_up_{$tun}.sh\n";
|
| 334 |
|
|
}
|
| 335 |
|
|
|
| 336 |
|
|
} else {
|
| 337 |
|
|
/* Not bridged, can be tun or tap, doesn't matter */
|
| 338 |
|
|
$netmask = gen_subnet_mask($server['prefix']);
|
| 339 |
|
|
|
| 340 |
|
|
if ($server['method'] == "ovpn") {
|
| 341 |
|
|
/* new --server macro simplifies config */
|
| 342 |
|
|
$ovpn_config .= "server {$server['ipblock']} {$netmask}\n";
|
| 343 |
|
|
} else {
|
| 344 |
|
|
$ovpn_config .= <<<EOD
|
| 345 |
|
|
mode server
|
| 346 |
|
|
tls-server
|
| 347 |
|
|
ifconfig {$server['ipblock']} {$netmask}
|
| 348 |
|
|
|
| 349 |
|
|
EOD;
|
| 350 |
|
|
}
|
| 351 |
|
|
} /* end bridging */
|
| 352 |
|
|
|
| 353 |
|
|
/* Duplicate CNs */
|
| 354 |
|
|
if (isset($server['dupcn']))
|
| 355 |
|
|
$ovpn_config .= "duplicate-cn\n";
|
| 356 |
|
|
|
| 357 |
bc5dc421
|
Scott Ullrich
|
$push_options = "";
|
| 358 |
|
|
|
| 359 |
|
|
/* Client push - redirect gateway */
|
| 360 |
|
|
if (isset($server['psh_options']['redir'])) {
|
| 361 |
|
|
if (isset($server['psh_options']['redir_loc']))
|
| 362 |
|
|
$push_config .= "push \"redirect-gateway local\"\n";
|
| 363 |
|
|
else
|
| 364 |
|
|
$push_config .= "push \"redirect-gateway\"\n";
|
| 365 |
|
|
}
|
| 366 |
|
|
|
| 367 |
|
|
/* Client push - route delay */
|
| 368 |
|
|
if (isset($server['psh_options']['rte_delay']))
|
| 369 |
|
|
$push_config .= "push \"route-delay {$server['psh_options']['rte_delay_int']}\"\n";
|
| 370 |
|
|
|
| 371 |
|
|
/* Client push - ping (note we set both server and client) */
|
| 372 |
|
|
if (isset ($server['psh_options']['ping'])){
|
| 373 |
|
|
$conflict = true;
|
| 374 |
|
|
$interval = $server['psh_options']['ping_int'];
|
| 375 |
|
|
$ovpn_config .= "ping {$server['psh_options']['ping_int']}\n ";
|
| 376 |
|
|
$push_config .= "push \"ping {$server['psh_options']['ping_int']}\"\n";
|
| 377 |
|
|
}
|
| 378 |
|
|
|
| 379 |
|
|
/* Client push - ping-restart (note server uses 2 x client interval) */
|
| 380 |
|
|
if (isset ($server['psh_options']['pingrst'])){
|
| 381 |
|
|
$conflict = true;
|
| 382 |
|
|
$interval = $server['psh_options']['pingrst_int'];
|
| 383 |
|
|
$ovpn_config .= "ping-restart " . ($interval * 2) . "\n";
|
| 384 |
|
|
$push_config .= "push \"ping-restart $interval\"\n";
|
| 385 |
|
|
}
|
| 386 |
|
|
|
| 387 |
|
|
/* Client push - ping-exit (set on client) */
|
| 388 |
|
|
if (isset ($server['psh_options']['pingexit'])){
|
| 389 |
|
|
$conflict = true;
|
| 390 |
|
|
$ovpn_config .= "ping-exit {$server['psh_options']['pingexit_int']}\n";
|
| 391 |
|
|
$push_config .= "push \"ping-exit {$server['psh_options']['pingexit_int']}\"\n";
|
| 392 |
|
|
}
|
| 393 |
|
|
|
| 394 |
|
|
/* Client push - inactive (set on client) */
|
| 395 |
|
|
if (isset ($server['psh_options']['inact'])){
|
| 396 |
|
|
$ovpn_config .= "inactive {$server['psh_options']['inact_int']}\n";
|
| 397 |
|
|
$push_config .= "push \"inactive {$server['psh_options']['inact_int']}\"\n";
|
| 398 |
|
|
}
|
| 399 |
|
|
|
| 400 |
|
|
if (isset($server['client-to-client']))
|
| 401 |
|
|
$push_config .= "push \"route {$network} {$netmask}\"\n";
|
| 402 |
|
|
|
| 403 |
|
|
if (isset($push_config))
|
| 404 |
|
|
$ovpn_config .= $push_config;
|
| 405 |
|
|
|
| 406 |
707e9964
|
Scott Ullrich
|
} else {
|
| 407 |
afb07cf1
|
Scott Ullrich
|
/* 'authentication_method' == "pre_shared_key" */
|
| 408 |
|
|
$network = gen_subnet($server['lipaddr'], $server['netmask']);
|
| 409 |
|
|
$netmask = gen_subnet_mask($server['netmask']);
|
| 410 |
707e9964
|
Scott Ullrich
|
|
| 411 |
afb07cf1
|
Scott Ullrich
|
$ovpn_config .= "secret {$g['vardb_path']}/ovpn_srv_psk_{$tun}.pem 0\n";
|
| 412 |
|
|
|
| 413 |
|
|
if (strstr($server['type'], "tun")) {
|
| 414 |
|
|
$ovpn_config .= "ifconfig {$server['lipaddr']} {$server['ripaddr']}\n";
|
| 415 |
|
|
$ovpn_config .= "route {$network} {$netmask}\n";
|
| 416 |
|
|
} else {
|
| 417 |
|
|
$ovpn_config .= "ifconfig {$server['lipaddr']} {$netmask}\n";
|
| 418 |
|
|
}
|
| 419 |
|
|
|
| 420 |
|
|
} /* end authentication_method */
|
| 421 |
|
|
|
| 422 |
707e9964
|
Scott Ullrich
|
if (!isset($conflict))
|
| 423 |
afb07cf1
|
Scott Ullrich
|
$ovpn_config .= "keepalive 10 60\n";
|
| 424 |
|
|
|
| 425 |
|
|
/* Expert mode paramters */
|
| 426 |
|
|
if (isset($server['expertmode_enabled']) && is_array($server['expertmode'])) {
|
| 427 |
|
|
$ovpn_config .= ";begin expertmode\n";
|
| 428 |
|
|
foreach ($server['expertmode']['option'] as $option) {
|
| 429 |
|
|
$ovpn_config .= "{$option}\n";
|
| 430 |
|
|
}
|
| 431 |
|
|
$ovpn_config .= ";end expertmode\n";
|
| 432 |
|
|
}
|
| 433 |
|
|
|
| 434 |
|
|
fwrite($fd, $ovpn_config);
|
| 435 |
|
|
fclose($fd);
|
| 436 |
3c2e5528
|
Scott Ullrich
|
|
| 437 |
5b237745
|
Scott Ullrich
|
//trigger_error("OVPN: $ovpn_config", E_USER_NOTICE);
|
| 438 |
|
|
}
|
| 439 |
|
|
|
| 440 |
|
|
/* Define an OVPN Server tunnel interface in the interfaces array and assign a name */
|
| 441 |
|
|
function ovpn_server_iface(){
|
| 442 |
|
|
global $config, $g;
|
| 443 |
afb07cf1
|
Scott Ullrich
|
|
| 444 |
|
|
unset($filter_configure);
|
| 445 |
|
|
unset($bridge_configure);
|
| 446 |
5b237745
|
Scott Ullrich
|
|
| 447 |
3c2e5528
|
Scott Ullrich
|
foreach ($config['ovpn']['server']['tunnel'] as $id => $server) {
|
| 448 |
|
|
if (isset($server['enable'])) {
|
| 449 |
|
|
|
| 450 |
|
|
/* get tunnel interface */
|
| 451 |
|
|
$tun = $server['tun_iface'];
|
| 452 |
|
|
|
| 453 |
|
|
$i = 1;
|
| 454 |
|
|
while (true) {
|
| 455 |
|
|
$ifname = 'opt' . $i;
|
| 456 |
|
|
if (is_array($config['interfaces'][$ifname])) {
|
| 457 |
|
|
if ((isset($config['interfaces'][$ifname]['ovpn']))
|
| 458 |
|
|
&& ($config['interfaces'][$ifname]['ovpn'] == "server_{$tun}"))
|
| 459 |
|
|
/* Already an interface defined - overwrite */
|
| 460 |
|
|
break;
|
| 461 |
afb07cf1
|
Scott Ullrich
|
} else {
|
| 462 |
|
|
|
| 463 |
3c2e5528
|
Scott Ullrich
|
/* No existing entry, this is first unused */
|
| 464 |
|
|
$config['interfaces'][$ifname] = array();
|
| 465 |
afb07cf1
|
Scott Ullrich
|
|
| 466 |
|
|
/* add new filter rules */
|
| 467 |
|
|
$filter_configure = true;
|
| 468 |
3c2e5528
|
Scott Ullrich
|
break;
|
| 469 |
|
|
}
|
| 470 |
|
|
$i++;
|
| 471 |
|
|
}
|
| 472 |
afb07cf1
|
Scott Ullrich
|
$config['interfaces'][$ifname]['descr'] = strtoupper($server['tun_iface']);
|
| 473 |
3c2e5528
|
Scott Ullrich
|
$config['interfaces'][$ifname]['if'] = $server['tun_iface'];
|
| 474 |
afb07cf1
|
Scott Ullrich
|
if ($server['method'] == "ovpn")
|
| 475 |
|
|
$config['interfaces'][$ifname]['ipaddr'] = long2ip( ip2long($server['ipblock']) + 1);
|
| 476 |
|
|
else
|
| 477 |
|
|
$config['interfaces'][$ifname]['ipaddr'] = $server['ipblock'];
|
| 478 |
|
|
if (isset($server['bridge'])) {
|
| 479 |
|
|
$config['interfaces'][$ifname]['bridge'] = $server['bridge'];
|
| 480 |
|
|
$bridge_configure = true;
|
| 481 |
|
|
} else if (isset($config['interfaces'][$ifname]['bridge'])) {
|
| 482 |
|
|
/* bridge config removed */
|
| 483 |
|
|
unset ($config['interfaces'][$ifname]['bridge']);
|
| 484 |
|
|
$bridge_configure = true;
|
| 485 |
|
|
}
|
| 486 |
3c2e5528
|
Scott Ullrich
|
$config['interfaces'][$ifname]['subnet'] = $server['prefix'];
|
| 487 |
|
|
$config['interfaces'][$ifname]['enable'] = isset($server['enable']) ? true : false;
|
| 488 |
|
|
$config['interfaces'][$ifname]['ovpn'] = "server_{$tun}";
|
| 489 |
|
|
|
| 490 |
|
|
write_config();
|
| 491 |
5b237745
|
Scott Ullrich
|
}
|
| 492 |
3c2e5528
|
Scott Ullrich
|
}
|
| 493 |
afb07cf1
|
Scott Ullrich
|
|
| 494 |
|
|
/* do we have to reconfigure filter rules? */
|
| 495 |
|
|
if (isset($bridge_configure))
|
| 496 |
|
|
interfaces_optional_configure();
|
| 497 |
|
|
else if (isset($filter_configure))
|
| 498 |
|
|
filter_configure();
|
| 499 |
|
|
|
| 500 |
3c2e5528
|
Scott Ullrich
|
return "OpenVPN server interface defined";
|
| 501 |
|
|
}
|
| 502 |
|
|
|
| 503 |
|
|
/* Delete a server interface definition */
|
| 504 |
|
|
function ovpn_server_iface_del($tun) {
|
| 505 |
|
|
global $config;
|
| 506 |
|
|
|
| 507 |
|
|
for ($i = 1; is_array($config['interfaces']['opt' . $i]); $i++) {
|
| 508 |
|
|
$ifname = 'opt' . $i;
|
| 509 |
|
|
if ((isset($config['interfaces'][$ifname]['ovpn']))
|
| 510 |
|
|
&& ($config['interfaces'][$ifname]['if'] == "$tun")) {
|
| 511 |
|
|
unset($config['interfaces'][$ifname]);
|
| 512 |
5b237745
|
Scott Ullrich
|
break;
|
| 513 |
|
|
}
|
| 514 |
3c2e5528
|
Scott Ullrich
|
}
|
| 515 |
|
|
|
| 516 |
|
|
/* shift down other OPTn interfaces to get rid of holes */
|
| 517 |
|
|
$i++;
|
| 518 |
|
|
|
| 519 |
|
|
/* look at the following OPTn ports */
|
| 520 |
|
|
while (is_array($config['interfaces']['opt' . $i])) {
|
| 521 |
|
|
$config['interfaces']['opt' . ($i - 1)] =
|
| 522 |
|
|
$config['interfaces']['opt' . $i];
|
| 523 |
|
|
|
| 524 |
|
|
unset($config['interfaces']['opt' . $i]);
|
| 525 |
5b237745
|
Scott Ullrich
|
$i++;
|
| 526 |
|
|
}
|
| 527 |
afb07cf1
|
Scott Ullrich
|
|
| 528 |
|
|
/* reconfigure filter rules */
|
| 529 |
|
|
interfaces_optional_configure();
|
| 530 |
5b237745
|
Scott Ullrich
|
}
|
| 531 |
|
|
|
| 532 |
afb07cf1
|
Scott Ullrich
|
/* Add client config file */
|
| 533 |
|
|
function ovpn_server_ccd_add() {
|
| 534 |
|
|
global $config, $g;
|
| 535 |
3c2e5528
|
Scott Ullrich
|
|
| 536 |
afb07cf1
|
Scott Ullrich
|
if (is_array($config['ovpn']['server']['ccd'])) {
|
| 537 |
|
|
foreach ($config['ovpn']['server']['ccd'] as $id => $server) {
|
| 538 |
|
|
/* define configuration options */
|
| 539 |
|
|
ovpn_server_ccd_generate($id);
|
| 540 |
|
|
}
|
| 541 |
|
|
}
|
| 542 |
|
|
}
|
| 543 |
3c2e5528
|
Scott Ullrich
|
|
| 544 |
afb07cf1
|
Scott Ullrich
|
|
| 545 |
|
|
/* Construct client config file */
|
| 546 |
|
|
function ovpn_server_ccd_generate($id) {
|
| 547 |
|
|
global $config, $g;
|
| 548 |
|
|
$ovpnccd = $config['ovpn']['server']['ccd'][$id];
|
| 549 |
|
|
|
| 550 |
|
|
$cn = $ovpnccd['cn'];
|
| 551 |
|
|
$ccd_config = "";
|
| 552 |
|
|
$push_options = "";
|
| 553 |
|
|
|
| 554 |
|
|
/* Push reset */
|
| 555 |
|
|
if (!isset($ovpnccd['disable']) && isset($ovpnccd['psh_reset'])) {
|
| 556 |
|
|
$ccd_config .= "push-reset\n";
|
| 557 |
|
|
|
| 558 |
|
|
/* Client push - redirect gateway */
|
| 559 |
|
|
if (isset($ovpnccd['psh_options']['redir'])) {
|
| 560 |
|
|
if (isset($ovpnccd['psh_options']['redir_loc']))
|
| 561 |
|
|
$push_config .= "push \"redirect-gateway local\"\n";
|
| 562 |
|
|
else
|
| 563 |
|
|
$push_config .= "push \"redirect-gateway\"\n";
|
| 564 |
|
|
}
|
| 565 |
|
|
|
| 566 |
|
|
/* Client push - route delay */
|
| 567 |
|
|
if (isset($ovpnccd['psh_options']['rte_delay']))
|
| 568 |
|
|
$push_config .= "push \"route-delay {$ovpnccd['psh_options']['rte_delay_int']}\"\n";
|
| 569 |
|
|
|
| 570 |
|
|
/* Client push - ping (note we set both server and client) */
|
| 571 |
|
|
if (isset ($ovpnccd['psh_options']['ping'])){
|
| 572 |
|
|
$ccd_config .= "ping {$server['psh_options']['ping_int']}\n ";
|
| 573 |
|
|
$push_config .= "push \"ping {$ovpnccd['psh_options']['ping_int']}\"\n";
|
| 574 |
|
|
}
|
| 575 |
|
|
|
| 576 |
|
|
/* Client push - ping-restart (note server uses 2 x client interval) */
|
| 577 |
|
|
if (isset ($ovpnccd['psh_options']['pingrst'])){
|
| 578 |
|
|
$interval = $ovpnccd['psh_options']['pingrst_int'];
|
| 579 |
|
|
$ccd_config .= "ping-restart " . ($interval * 2) . "\n";
|
| 580 |
|
|
$push_config .= "push \"ping-restart $interval\"\n";
|
| 581 |
|
|
}
|
| 582 |
|
|
|
| 583 |
|
|
/* Client push - ping-exit (set on client) */
|
| 584 |
|
|
if (isset ($ovpnccd['psh_options']['pingexit'])){
|
| 585 |
|
|
$ccd_config .= "ping-exit {$ovpnccd['psh_options']['pingexit_int']}\n";
|
| 586 |
|
|
$push_config .= "push \"ping-exit {$ovpnccd['psh_options']['pingexit_int']}\"\n";
|
| 587 |
|
|
}
|
| 588 |
|
|
|
| 589 |
|
|
/* Client push - inactive (set on client) */
|
| 590 |
|
|
if (isset ($ovpnccd['psh_options']['inact'])){
|
| 591 |
|
|
$ccd_config .= "inactive {$ovpnccd['psh_options']['inact_int']}\n";
|
| 592 |
|
|
$push_config .= "push \"inactive {$ovpnccd['psh_options']['inact_int']}\"\n";
|
| 593 |
|
|
}
|
| 594 |
|
|
|
| 595 |
|
|
if (isset($push_config))
|
| 596 |
|
|
$ccd_config .= $push_config;
|
| 597 |
|
|
}
|
| 598 |
|
|
|
| 599 |
|
|
if (!isset($ovpnccd['disable']) && is_array($ovpnccd['options'])) {
|
| 600 |
|
|
foreach ($ovpnccd['options']['option'] as $option) {
|
| 601 |
|
|
$ccd_config .= "{$option}\n";
|
| 602 |
|
|
}
|
| 603 |
|
|
}
|
| 604 |
|
|
|
| 605 |
|
|
/* Disable client from connecting */
|
| 606 |
|
|
if (isset($ovpnccd['disable']))
|
| 607 |
|
|
$ccd_config = "disable\n";
|
| 608 |
|
|
|
| 609 |
|
|
unlink_if_exists("{$g['vardb_path']}/ccd/{$cn}");
|
| 610 |
|
|
|
| 611 |
|
|
if (isset($ccd_config) && isset($ovpnccd['enable'])) {
|
| 612 |
|
|
$fd = fopen("{$g['vardb_path']}/ccd/{$cn}", "w");
|
| 613 |
|
|
if ($fd) {
|
| 614 |
|
|
fwrite($fd, $ccd_config."\n");
|
| 615 |
|
|
fclose($fd);
|
| 616 |
3c2e5528
|
Scott Ullrich
|
}
|
| 617 |
|
|
}
|
| 618 |
|
|
}
|
| 619 |
|
|
|
| 620 |
afb07cf1
|
Scott Ullrich
|
/* Delete client config file */
|
| 621 |
|
|
function ovpn_server_ccd_del($cn) {
|
| 622 |
|
|
global $g;
|
| 623 |
|
|
|
| 624 |
|
|
unlink_if_exists("{$g['vardb_path']}/ccd/{$cn}");
|
| 625 |
|
|
return 0;
|
| 626 |
|
|
}
|
| 627 |
|
|
|
| 628 |
|
|
/* Add CRL file */
|
| 629 |
|
|
function ovpn_server_crl_add() {
|
| 630 |
|
|
global $config, $g, $d_ovpncrldirty_path;
|
| 631 |
|
|
|
| 632 |
|
|
if (is_array($config['ovpn']['server']['crl'])) {
|
| 633 |
|
|
foreach ($config['ovpn']['server']['crl'] as $id => $crlent) {
|
| 634 |
|
|
/* get crl file name */
|
| 635 |
|
|
$name = $crlent['crlname'];
|
| 636 |
|
|
|
| 637 |
|
|
if (isset($crlent['enable'])) {
|
| 638 |
|
|
|
| 639 |
|
|
/* add file */
|
| 640 |
|
|
ovpn_server_crl_generate($id);
|
| 641 |
|
|
|
| 642 |
|
|
if ($g['booting']) {
|
| 643 |
|
|
/* next crl file */
|
| 644 |
|
|
continue;
|
| 645 |
|
|
}
|
| 646 |
|
|
|
| 647 |
|
|
/* read dirtyfile */
|
| 648 |
|
|
if (is_readable($d_ovpncrldirty_path))
|
| 649 |
|
|
$lines = file($d_ovpncrldirty_path);
|
| 650 |
|
|
|
| 651 |
|
|
/* reconfigure crl file */
|
| 652 |
bc5dc421
|
Scott Ullrich
|
if (is_array($lines) && in_array($name . "\n", $lines)) {
|
| 653 |
afb07cf1
|
Scott Ullrich
|
|
| 654 |
|
|
/* restart running openvpn daemon */
|
| 655 |
|
|
foreach ($config['ovpn']['server']['tunnel'] as $id => $server) {
|
| 656 |
|
|
$tun = $server['tun_iface'];
|
| 657 |
|
|
|
| 658 |
|
|
if ($server['enable'] &&
|
| 659 |
|
|
isset($server['crlname']) && $server['crlname'] == $name)
|
| 660 |
|
|
/* kill running server */
|
| 661 |
|
|
ovpn_server_kill($tun);
|
| 662 |
|
|
|
| 663 |
|
|
/* Start the openvpn daemon */
|
| 664 |
|
|
mwexec("/usr/local/sbin/openvpn {$g['varetc_path']}/ovpn_srv_{$tun}.conf");
|
| 665 |
|
|
}
|
| 666 |
|
|
|
| 667 |
|
|
}
|
| 668 |
|
|
|
| 669 |
|
|
/* next crl file */
|
| 670 |
|
|
continue;
|
| 671 |
3c2e5528
|
Scott Ullrich
|
}
|
| 672 |
afb07cf1
|
Scott Ullrich
|
|
| 673 |
|
|
/* crl file disabled: remove file */
|
| 674 |
|
|
ovpn_server_crl_del($name);
|
| 675 |
3c2e5528
|
Scott Ullrich
|
}
|
| 676 |
|
|
}
|
| 677 |
afb07cf1
|
Scott Ullrich
|
return 0;
|
| 678 |
3c2e5528
|
Scott Ullrich
|
}
|
| 679 |
|
|
|
| 680 |
afb07cf1
|
Scott Ullrich
|
/* Write CRL to file */
|
| 681 |
|
|
function ovpn_server_crl_generate($id) {
|
| 682 |
|
|
global $config, $g;
|
| 683 |
|
|
|
| 684 |
|
|
$ovpncrl = $config['ovpn']['server']['crl'][$id];
|
| 685 |
|
|
|
| 686 |
|
|
$fd = fopen("{$g['vardb_path']}/{$ovpncrl['crlname']}.crl.pem", "w");
|
| 687 |
|
|
if ($fd) {
|
| 688 |
|
|
fwrite($fd, base64_decode($ovpncrl['crl_list'])."\n");
|
| 689 |
|
|
fclose($fd);
|
| 690 |
|
|
}
|
| 691 |
|
|
}
|
| 692 |
|
|
|
| 693 |
|
|
/* Delete CRL file */
|
| 694 |
|
|
function ovpn_server_crl_del($name) {
|
| 695 |
|
|
global $config, $g;
|
| 696 |
|
|
|
| 697 |
|
|
/* have to wipe out the crl from the server config */
|
| 698 |
|
|
foreach ($config['ovpn']['server']['tunnel'] as $id => $server) {
|
| 699 |
|
|
if (isset($server['crlname']) && $server['crlname'] == $name) {
|
| 700 |
|
|
|
| 701 |
|
|
/* get tunnel interface */
|
| 702 |
|
|
$tun = $server['tun_iface'];
|
| 703 |
|
|
|
| 704 |
|
|
/* remove crl file entry */
|
| 705 |
|
|
unset($config['ovpn']['server']['tunnel'][$id]['crlname']);
|
| 706 |
|
|
write_config();
|
| 707 |
|
|
|
| 708 |
|
|
/* kill running server */
|
| 709 |
|
|
ovpn_server_kill($tun);
|
| 710 |
|
|
|
| 711 |
|
|
/* remove old certs & keys */
|
| 712 |
|
|
ovpn_server_certs_del($tun);
|
| 713 |
|
|
|
| 714 |
|
|
/* reconfigure daemon */
|
| 715 |
|
|
ovpn_srv_config_generate($id);
|
| 716 |
|
|
|
| 717 |
|
|
/* Start the openvpn daemon */
|
| 718 |
|
|
mwexec("/usr/local/sbin/openvpn {$g['varetc_path']}/ovpn_srv_{$tun}.conf");
|
| 719 |
|
|
}
|
| 720 |
|
|
}
|
| 721 |
|
|
|
| 722 |
|
|
unlink_if_exists("{$g['vardb_path']}/{$name}.crl.pem");
|
| 723 |
|
|
return 0;
|
| 724 |
|
|
}
|
| 725 |
|
|
|
| 726 |
|
|
|
| 727 |
|
|
/* Get a list of crl files */
|
| 728 |
|
|
function ovpn_get_crl_list() {
|
| 729 |
3c2e5528
|
Scott Ullrich
|
global $config;
|
| 730 |
afb07cf1
|
Scott Ullrich
|
|
| 731 |
|
|
$crl_list = array();
|
| 732 |
|
|
|
| 733 |
|
|
if (is_array($config['ovpn']['server']['crl'])) {
|
| 734 |
|
|
foreach ($config['ovpn']['server']['crl'] as $crlent) {
|
| 735 |
|
|
if (isset($crlent['enable']))
|
| 736 |
|
|
$crl_list[] = $crlent['crlname'];
|
| 737 |
3c2e5528
|
Scott Ullrich
|
}
|
| 738 |
|
|
}
|
| 739 |
afb07cf1
|
Scott Ullrich
|
return $crl_list;
|
| 740 |
|
|
}
|
| 741 |
|
|
|
| 742 |
|
|
/* append interface to $_ovpnsrvdirty_path */
|
| 743 |
|
|
function ovpn_srv_dirty($tun) {
|
| 744 |
|
|
global $d_ovpnsrvdirty_path;
|
| 745 |
|
|
|
| 746 |
|
|
$fd = fopen($d_ovpnsrvdirty_path, 'a');
|
| 747 |
|
|
if ($fd) {
|
| 748 |
bc5dc421
|
Scott Ullrich
|
fwrite($fd, $tun ."\n");
|
| 749 |
afb07cf1
|
Scott Ullrich
|
fclose($fd);
|
| 750 |
|
|
}
|
| 751 |
3c2e5528
|
Scott Ullrich
|
}
|
| 752 |
|
|
|
| 753 |
afb07cf1
|
Scott Ullrich
|
/* append file name to $_ovpncrldirty_path */
|
| 754 |
|
|
function ovpn_crl_dirty($name) {
|
| 755 |
|
|
global $d_ovpncrldirty_path;
|
| 756 |
|
|
|
| 757 |
|
|
$fd = fopen($d_ovpncrldirty_path, 'a');
|
| 758 |
|
|
if ($fd) {
|
| 759 |
bc5dc421
|
Scott Ullrich
|
fwrite($fd, $name ."\n");
|
| 760 |
afb07cf1
|
Scott Ullrich
|
fclose($fd);
|
| 761 |
|
|
}
|
| 762 |
|
|
}
|
| 763 |
|
|
|
| 764 |
|
|
|
| 765 |
|
|
/****************************/
|
| 766 |
|
|
/* Client related functions */
|
| 767 |
|
|
/****************************/
|
| 768 |
|
|
|
| 769 |
5b237745
|
Scott Ullrich
|
function ovpn_config_client() {
|
| 770 |
|
|
/* Boot time configuration */
|
| 771 |
afb07cf1
|
Scott Ullrich
|
global $config, $g, $d_ovpnclidirty_path;;
|
| 772 |
5b237745
|
Scott Ullrich
|
|
| 773 |
|
|
foreach ($config['ovpn']['client']['tunnel'] as $id => $client) {
|
| 774 |
3c2e5528
|
Scott Ullrich
|
|
| 775 |
|
|
/* get tunnel interface */
|
| 776 |
|
|
$tun = $client['if'];
|
| 777 |
|
|
|
| 778 |
5b237745
|
Scott Ullrich
|
if (isset($client['enable'])) {
|
| 779 |
afb07cf1
|
Scott Ullrich
|
|
| 780 |
|
|
if ($g['booting']) {
|
| 781 |
5b237745
|
Scott Ullrich
|
echo "Starting OpenVPN client $id... ";
|
| 782 |
|
|
|
| 783 |
afb07cf1
|
Scott Ullrich
|
/* define configuration options */
|
| 784 |
|
|
ovpn_cli_config_generate($id);
|
| 785 |
|
|
|
| 786 |
|
|
/* Start openvpn for this client */
|
| 787 |
|
|
mwexec("/usr/local/sbin/openvpn {$g['varetc_path']}/ovpn_cli_{$tun}.conf");
|
| 788 |
5b237745
|
Scott Ullrich
|
|
| 789 |
|
|
/* Send the boot message */
|
| 790 |
3c2e5528
|
Scott Ullrich
|
echo "done\n";
|
| 791 |
afb07cf1
|
Scott Ullrich
|
|
| 792 |
|
|
/* next client */
|
| 793 |
|
|
continue;
|
| 794 |
|
|
}
|
| 795 |
|
|
|
| 796 |
|
|
/* read dirtyfile */
|
| 797 |
|
|
if (is_readable($d_ovpnclidirty_path))
|
| 798 |
|
|
$lines = file($d_ovpnclidirty_path);
|
| 799 |
|
|
|
| 800 |
|
|
/* reconfigure client */
|
| 801 |
bc5dc421
|
Scott Ullrich
|
if (is_array($lines) && in_array($tun . "\n", $lines)) {
|
| 802 |
afb07cf1
|
Scott Ullrich
|
|
| 803 |
|
|
/* kill running client */
|
| 804 |
3c2e5528
|
Scott Ullrich
|
ovpn_client_kill($tun);
|
| 805 |
|
|
|
| 806 |
afb07cf1
|
Scott Ullrich
|
/* remove old certs & keys */
|
| 807 |
|
|
ovpn_client_certs_del($tun);
|
| 808 |
|
|
|
| 809 |
|
|
/* define configuration options */
|
| 810 |
|
|
ovpn_cli_config_generate($id);
|
| 811 |
5b237745
|
Scott Ullrich
|
}
|
| 812 |
afb07cf1
|
Scott Ullrich
|
|
| 813 |
|
|
/* Start the openvpn daemon */
|
| 814 |
|
|
if (!is_readable("{$g['varrun_path']}/ovpn_cli_{$tun}.pid"))
|
| 815 |
|
|
mwexec("/usr/local/sbin/openvpn {$g['varetc_path']}/ovpn_cli_{$tun}.conf");
|
| 816 |
|
|
|
| 817 |
|
|
/* next client */
|
| 818 |
|
|
continue;
|
| 819 |
|
|
}
|
| 820 |
|
|
|
| 821 |
|
|
/* client disabled */
|
| 822 |
|
|
if (!$g['booting']) {
|
| 823 |
|
|
/* kill running client */
|
| 824 |
|
|
ovpn_client_kill($tun);
|
| 825 |
|
|
|
| 826 |
|
|
/* remove old certs & keys */
|
| 827 |
|
|
ovpn_client_certs_del($tun);
|
| 828 |
|
|
|
| 829 |
|
|
/* stop any processes, unload the tap module */
|
| 830 |
|
|
//if ($client['type'] == "tap")
|
| 831 |
|
|
// ovpn_unlink_tap();
|
| 832 |
5b237745
|
Scott Ullrich
|
}
|
| 833 |
|
|
}
|
| 834 |
|
|
return 0;
|
| 835 |
|
|
}
|
| 836 |
|
|
|
| 837 |
|
|
/* Kill off a running client process */
|
| 838 |
afb07cf1
|
Scott Ullrich
|
function ovpn_client_certs_del($tun) {
|
| 839 |
5b237745
|
Scott Ullrich
|
global $g;
|
| 840 |
|
|
|
| 841 |
3c2e5528
|
Scott Ullrich
|
/* Remove old certs & keys */
|
| 842 |
|
|
unlink_if_exists("{$g['vardb_path']}/ovpn_cli_ca_cert_{$tun}.pem");
|
| 843 |
|
|
unlink_if_exists("{$g['vardb_path']}/ovpn_cli_cert_{$tun}.pem");
|
| 844 |
|
|
unlink_if_exists("{$g['vardb_path']}/ovpn_cli_key_{$tun}.pem");
|
| 845 |
707e9964
|
Scott Ullrich
|
unlink_if_exists("{$g['vardb_path']}/ovpn_cli_psk_{$tun}.pem");
|
| 846 |
afb07cf1
|
Scott Ullrich
|
unlink_if_exists("{$g['varetc_path']}/ovpn_cli_up_{$tun}.pem");
|
| 847 |
|
|
unlink_if_exists("{$g['varetc_path']}/ovpn_cli_{$tun}.conf");
|
| 848 |
3c2e5528
|
Scott Ullrich
|
|
| 849 |
5b237745
|
Scott Ullrich
|
return 0;
|
| 850 |
|
|
}
|
| 851 |
|
|
|
| 852 |
afb07cf1
|
Scott Ullrich
|
/* Kill off a running client process */
|
| 853 |
|
|
function ovpn_client_kill($tun) {
|
| 854 |
|
|
global $g;
|
| 855 |
|
|
|
| 856 |
|
|
/* kill running client */
|
| 857 |
|
|
killbypid("{$g['varrun_path']}/ovpn_cli_{$tun}.pid");
|
| 858 |
|
|
}
|
| 859 |
|
|
|
| 860 |
3c2e5528
|
Scott Ullrich
|
/* Generate the config for a OpenVPN client */
|
| 861 |
5b237745
|
Scott Ullrich
|
function ovpn_cli_config_generate($id) {
|
| 862 |
|
|
/* configure the named client */
|
| 863 |
|
|
global $config, $g;
|
| 864 |
3c2e5528
|
Scott Ullrich
|
$client = $config['ovpn']['client']['tunnel'][$id];
|
| 865 |
|
|
|
| 866 |
|
|
/* get tunnel interface */
|
| 867 |
|
|
$tun = $client['if'];
|
| 868 |
afb07cf1
|
Scott Ullrich
|
|
| 869 |
707e9964
|
Scott Ullrich
|
/* get optional interface name */
|
| 870 |
|
|
$iface = ovpn_get_opt_interface($tun);
|
| 871 |
|
|
|
| 872 |
afb07cf1
|
Scott Ullrich
|
/* Copy the TLS-Client certs & keys to disk */
|
| 873 |
|
|
if ($client['authentication_method'] != "pre_shared_key" ) {
|
| 874 |
|
|
|
| 875 |
|
|
$fd = fopen("{$g['vardb_path']}/ovpn_cli_ca_cert_{$tun}.pem", "w");
|
| 876 |
|
|
if ($fd) {
|
| 877 |
|
|
fwrite($fd, base64_decode($client['ca_cert'])."\n");
|
| 878 |
|
|
fclose($fd);
|
| 879 |
|
|
}
|
| 880 |
|
|
|
| 881 |
|
|
$fd = fopen("{$g['vardb_path']}/ovpn_cli_cert_{$tun}.pem", "w");
|
| 882 |
|
|
if ($fd) {
|
| 883 |
|
|
fwrite($fd, base64_decode($client['cli_cert'])."\n");
|
| 884 |
|
|
fclose($fd);
|
| 885 |
|
|
}
|
| 886 |
|
|
|
| 887 |
|
|
touch ("{$g['vardb_path']}/ovpn_cli_key_{$tun}.pem");
|
| 888 |
|
|
chmod ("{$g['vardb_path']}/ovpn_cli_key_{$tun}.pem", 0600);
|
| 889 |
|
|
$fd = fopen("{$g['vardb_path']}/ovpn_cli_key_{$tun}.pem", "w");
|
| 890 |
|
|
if ($fd) {
|
| 891 |
|
|
fwrite($fd, base64_decode($client['cli_key'])."\n");
|
| 892 |
|
|
fclose($fd);
|
| 893 |
|
|
}
|
| 894 |
3c2e5528
|
Scott Ullrich
|
}
|
| 895 |
707e9964
|
Scott Ullrich
|
|
| 896 |
afb07cf1
|
Scott Ullrich
|
if ($client['authentication_method'] == "pre_shared_key" || isset($client['tlsauth'])) {
|
| 897 |
|
|
touch ("{$g['vardb_path']}/ovpn_cli_psk_{$tun}.pem");
|
| 898 |
|
|
chmod ("{$g['vardb_path']}/ovpn_cli_psk_{$tun}.pem", 0600);
|
| 899 |
|
|
$fd = fopen("{$g['vardb_path']}/ovpn_cli_psk_{$tun}.pem", "w");
|
| 900 |
707e9964
|
Scott Ullrich
|
if ($fd) {
|
| 901 |
afb07cf1
|
Scott Ullrich
|
fwrite($fd, base64_decode($client['pre-shared-key'])."\n");
|
| 902 |
|
|
fclose($fd);
|
| 903 |
707e9964
|
Scott Ullrich
|
}
|
| 904 |
|
|
}
|
| 905 |
|
|
|
| 906 |
afb07cf1
|
Scott Ullrich
|
$fd = fopen("{$g['varetc_path']}/ovpn_cli_{$tun}.conf", "w");
|
| 907 |
|
|
if (!$fd) {
|
| 908 |
|
|
printf("Error: cannot open ovpn_cli_{$tun}.conf in ovpn_cli_config_generate($id).\n");
|
| 909 |
|
|
return 1;
|
| 910 |
|
|
}
|
| 911 |
|
|
|
| 912 |
|
|
/* Client support in 2.0 is very simple */
|
| 913 |
|
|
$ovpn_config = "";
|
| 914 |
|
|
$ovpn_config .= <<<EOD
|
| 915 |
|
|
daemon
|
| 916 |
|
|
verb 1
|
| 917 |
|
|
status /var/log/openvpn_{$tun}.log 60
|
| 918 |
|
|
writepid {$g['varrun_path']}/ovpn_cli_{$tun}.pid
|
| 919 |
|
|
dev {$client['if']}
|
| 920 |
|
|
lport {$client['cport']}
|
| 921 |
|
|
remote {$client['saddr']} {$client['sport']}
|
| 922 |
|
|
cipher {$client['crypto']}
|
| 923 |
|
|
|
| 924 |
|
|
EOD;
|
| 925 |
|
|
|
| 926 |
|
|
/* Version 1.0 compatibility; http://openvpn.net/compat.html */
|
| 927 |
|
|
if ($client['ver'] != "2") {
|
| 928 |
|
|
$ovpn_config .= <<<EOD
|
| 929 |
|
|
key-method 1
|
| 930 |
|
|
tun-mtu 1500
|
| 931 |
|
|
tun-mtu-extra 32
|
| 932 |
|
|
mssfix 1450
|
| 933 |
|
|
|
| 934 |
|
|
EOD;
|
| 935 |
|
|
}
|
| 936 |
|
|
|
| 937 |
|
|
/* Set protocol being used (p = udp (default), tcp-client) */
|
| 938 |
|
|
if ($client['proto'] == "tcp")
|
| 939 |
|
|
$ovpn_config .= "proto tcp-client\n";
|
| 940 |
|
|
|
| 941 |
707e9964
|
Scott Ullrich
|
/* TLS-Client params */
|
| 942 |
afb07cf1
|
Scott Ullrich
|
if ($client['authentication_method'] != "pre_shared_key") {
|
| 943 |
|
|
$ovpn_config .= <<<EOD
|
| 944 |
|
|
ca {$g['vardb_path']}/ovpn_cli_ca_cert_{$tun}.pem
|
| 945 |
|
|
cert {$g['vardb_path']}/ovpn_cli_cert_{$tun}.pem
|
| 946 |
|
|
key {$g['vardb_path']}/ovpn_cli_key_{$tun}.pem
|
| 947 |
707e9964
|
Scott Ullrich
|
|
| 948 |
afb07cf1
|
Scott Ullrich
|
EOD;
|
| 949 |
707e9964
|
Scott Ullrich
|
|
| 950 |
afb07cf1
|
Scott Ullrich
|
if (isset($client['pull']))
|
| 951 |
|
|
$ovpn_config .= "client\n";
|
| 952 |
|
|
else
|
| 953 |
|
|
$ovpn_config .= "tls-client\n";
|
| 954 |
|
|
|
| 955 |
|
|
/* TLS auth */
|
| 956 |
|
|
if (isset($client['ns_cert_type']))
|
| 957 |
|
|
$ovpn_config .= "ns-cert-type server\n";
|
| 958 |
|
|
|
| 959 |
|
|
/* TLS auth */
|
| 960 |
|
|
if (isset($client['tlsauth']))
|
| 961 |
|
|
$ovpn_config .= "tls-auth {$g['vardb_path']}/ovpn_cli_psk_{$tun}.pem 1\n";
|
| 962 |
|
|
|
| 963 |
|
|
/* bridging enabled? */
|
| 964 |
|
|
if ($client['bridge'] && $client['type'] == "tap") {
|
| 965 |
|
|
$lastdigits = substr($tun, 3) + 2;
|
| 966 |
|
|
$ovpn_cli_up = "/sbin/ifconfig " . $tun . " 127.0.0." . $lastdigits . "/32\n";
|
| 967 |
|
|
|
| 968 |
|
|
$fdo = fopen("{$g['varetc_path']}/ovpn_cli_up_{$tun}.sh", "w");
|
| 969 |
|
|
if ($fdo) {
|
| 970 |
|
|
fwrite($fdo, $ovpn_cli_up);
|
| 971 |
|
|
fclose($fdo);
|
| 972 |
|
|
chmod ("{$g['varetc_path']}/ovpn_cli_up_{$tun}.sh", 0755);
|
| 973 |
|
|
$ovpn_config .= "up /var/etc/ovpn_cli_up_{$tun}.sh\n";
|
| 974 |
|
|
}
|
| 975 |
|
|
}
|
| 976 |
|
|
|
| 977 |
|
|
} else {
|
| 978 |
|
|
/* 'authentication_method' == "pre_shared_key" */
|
| 979 |
|
|
$ovpn_config .= "secret {$g['vardb_path']}/ovpn_cli_psk_{$tun}.pem 0\n";
|
| 980 |
|
|
|
| 981 |
|
|
$network = gen_subnet($client['lipaddr'], $client['netmask']);
|
| 982 |
|
|
$netmask = gen_subnet_mask($client['netmask']);
|
| 983 |
|
|
|
| 984 |
|
|
if (strstr($client['type'], "tap"))
|
| 985 |
|
|
$ovpn_config .= "ifconfig {$client['lipaddr']} {$netmask}\n";
|
| 986 |
|
|
else
|
| 987 |
|
|
$ovpn_config .= "ifconfig {$client['lipaddr']} {$client['ripaddr']}\n";
|
| 988 |
|
|
|
| 989 |
|
|
} /* end authentication_method */
|
| 990 |
|
|
|
| 991 |
bc5dc421
|
Scott Ullrich
|
/* LZO compression (off by default) */
|
| 992 |
|
|
if (isset($client['comp_method'])) {
|
| 993 |
|
|
switch ($client['comp_method']) {
|
| 994 |
|
|
|
| 995 |
|
|
case 'lzo':
|
| 996 |
|
|
$ovpn_config .= "comp-lzo\n";
|
| 997 |
|
|
break;
|
| 998 |
|
|
case 'noadapt':
|
| 999 |
|
|
$ovpn_config .= "comp-lzo\n" . "comp-noadapt\n";
|
| 1000 |
|
|
break;
|
| 1001 |
|
|
}
|
| 1002 |
|
|
}
|
| 1003 |
|
|
|
| 1004 |
afb07cf1
|
Scott Ullrich
|
/* Expert mode paramters */
|
| 1005 |
|
|
if (isset($client['expertmode_enabled']) && is_array($client['expertmode'])) {
|
| 1006 |
|
|
$ovpn_config .= ";begin expertmode\n";
|
| 1007 |
|
|
foreach ($client['expertmode']['option'] as $option) {
|
| 1008 |
|
|
$ovpn_config .= "{$option}\n";
|
| 1009 |
|
|
}
|
| 1010 |
|
|
$ovpn_config .= ";end expertmode\n";
|
| 1011 |
|
|
}
|
| 1012 |
|
|
|
| 1013 |
|
|
fwrite($fd, $ovpn_config);
|
| 1014 |
|
|
fclose($fd);
|
| 1015 |
|
|
|
| 1016 |
|
|
/* trigger_error("OVPN: $ovpn_config", E_USER_NOTICE); */
|
| 1017 |
5b237745
|
Scott Ullrich
|
}
|
| 1018 |
|
|
|
| 1019 |
|
|
/* Define an OVPN tunnel interface in the interfaces array for each client */
|
| 1020 |
|
|
function ovpn_client_iface(){
|
| 1021 |
|
|
global $config;
|
| 1022 |
|
|
|
| 1023 |
afb07cf1
|
Scott Ullrich
|
unset($filter_configure);
|
| 1024 |
|
|
unset($bridge_configure);
|
| 1025 |
|
|
|
| 1026 |
5b237745
|
Scott Ullrich
|
foreach ($config['ovpn']['client']['tunnel'] as $id => $client) {
|
| 1027 |
|
|
if (isset($client['enable'])) {
|
| 1028 |
3c2e5528
|
Scott Ullrich
|
|
| 1029 |
|
|
/* get tunnel interface */
|
| 1030 |
|
|
$tun = $client['if'];
|
| 1031 |
|
|
|
| 1032 |
5b237745
|
Scott Ullrich
|
$i = 1;
|
| 1033 |
|
|
while (true) {
|
| 1034 |
|
|
$ifname = 'opt' . $i;
|
| 1035 |
|
|
if (is_array($config['interfaces'][$ifname])) {
|
| 1036 |
|
|
if ((isset($config['interfaces'][$ifname]['ovpn']))
|
| 1037 |
3c2e5528
|
Scott Ullrich
|
&& ($config['interfaces'][$ifname]['ovpn'] == "client_{$tun}"))
|
| 1038 |
5b237745
|
Scott Ullrich
|
/* Already an interface defined - overwrite */
|
| 1039 |
|
|
break;
|
| 1040 |
afb07cf1
|
Scott Ullrich
|
} else {
|
| 1041 |
|
|
|
| 1042 |
5b237745
|
Scott Ullrich
|
/* No existing entry, this is first unused */
|
| 1043 |
|
|
$config['interfaces'][$ifname] = array();
|
| 1044 |
afb07cf1
|
Scott Ullrich
|
|
| 1045 |
|
|
/* add new filter rules */
|
| 1046 |
|
|
$filter_configure = true;
|
| 1047 |
5b237745
|
Scott Ullrich
|
break;
|
| 1048 |
|
|
}
|
| 1049 |
|
|
$i++;
|
| 1050 |
|
|
}
|
| 1051 |
afb07cf1
|
Scott Ullrich
|
$config['interfaces'][$ifname]['descr'] = strtoupper($client['if']);
|
| 1052 |
5b237745
|
Scott Ullrich
|
$config['interfaces'][$ifname]['if'] = $client['if'];
|
| 1053 |
|
|
$config['interfaces'][$ifname]['ipaddr'] = "0.0.0.0";
|
| 1054 |
|
|
$config['interfaces'][$ifname]['subnet'] = "0";
|
| 1055 |
afb07cf1
|
Scott Ullrich
|
if (isset($client['bridge'])) {
|
| 1056 |
|
|
$config['interfaces'][$ifname]['bridge'] = $client['bridge'];
|
| 1057 |
|
|
$bridge_configure = true;
|
| 1058 |
|
|
} else if (isset($config['interfaces'][$ifname]['bridge'])) {
|
| 1059 |
|
|
/* bridge config removed */
|
| 1060 |
|
|
unset ($config['interfaces'][$ifname]['bridge']);
|
| 1061 |
|
|
$bridge_configure = true;
|
| 1062 |
|
|
}
|
| 1063 |
5b237745
|
Scott Ullrich
|
$config['interfaces'][$ifname]['enable'] = isset($client['enable']) ? true : false;
|
| 1064 |
3c2e5528
|
Scott Ullrich
|
$config['interfaces'][$ifname]['ovpn'] = "client_{$tun}";
|
| 1065 |
5b237745
|
Scott Ullrich
|
write_config();
|
| 1066 |
|
|
}
|
| 1067 |
|
|
}
|
| 1068 |
afb07cf1
|
Scott Ullrich
|
|
| 1069 |
|
|
/* do we have to reconfigure filter rules? */
|
| 1070 |
|
|
if (isset($bridge_configure))
|
| 1071 |
|
|
interfaces_optional_configure();
|
| 1072 |
|
|
else if (isset($filter_configure))
|
| 1073 |
|
|
filter_configure();
|
| 1074 |
|
|
|
| 1075 |
5b237745
|
Scott Ullrich
|
return "OpenVPN client interfaces defined";
|
| 1076 |
|
|
}
|
| 1077 |
|
|
|
| 1078 |
|
|
/* Delete a client interface definition */
|
| 1079 |
3c2e5528
|
Scott Ullrich
|
function ovpn_client_iface_del($tun) {
|
| 1080 |
5b237745
|
Scott Ullrich
|
global $config;
|
| 1081 |
3c2e5528
|
Scott Ullrich
|
|
| 1082 |
|
|
for ($i = 1; is_array($config['interfaces']['opt' . $i]); $i++) {
|
| 1083 |
5b237745
|
Scott Ullrich
|
$ifname = 'opt' . $i;
|
| 1084 |
3c2e5528
|
Scott Ullrich
|
if ((isset($config['interfaces'][$ifname]['ovpn']))
|
| 1085 |
|
|
&& ($config['interfaces'][$ifname]['if'] == "$tun")) {
|
| 1086 |
|
|
unset($config['interfaces'][$ifname]);
|
| 1087 |
|
|
break;
|
| 1088 |
5b237745
|
Scott Ullrich
|
}
|
| 1089 |
|
|
}
|
| 1090 |
3c2e5528
|
Scott Ullrich
|
|
| 1091 |
|
|
/* shift down other OPTn interfaces to get rid of holes */
|
| 1092 |
|
|
$i++;
|
| 1093 |
|
|
|
| 1094 |
|
|
/* look at the following OPTn ports */
|
| 1095 |
|
|
while (is_array($config['interfaces']['opt' . $i])) {
|
| 1096 |
|
|
$config['interfaces']['opt' . ($i - 1)] =
|
| 1097 |
|
|
$config['interfaces']['opt' . $i];
|
| 1098 |
|
|
|
| 1099 |
|
|
unset($config['interfaces']['opt' . $i]);
|
| 1100 |
|
|
$i++;
|
| 1101 |
|
|
}
|
| 1102 |
afb07cf1
|
Scott Ullrich
|
|
| 1103 |
|
|
/* reconfigure filter rules */
|
| 1104 |
|
|
interfaces_optional_configure();
|
| 1105 |
|
|
}
|
| 1106 |
|
|
|
| 1107 |
|
|
/* append interface to ovpndirty_path */
|
| 1108 |
|
|
function ovpn_cli_dirty($tun) {
|
| 1109 |
|
|
global $d_ovpnclidirty_path;
|
| 1110 |
|
|
|
| 1111 |
|
|
$fd = fopen($d_ovpnclidirty_path, 'a');
|
| 1112 |
|
|
if ($fd) {
|
| 1113 |
bc5dc421
|
Scott Ullrich
|
fwrite($fd, $tun . "\n");
|
| 1114 |
afb07cf1
|
Scott Ullrich
|
fclose($fd);
|
| 1115 |
|
|
}
|
| 1116 |
5b237745
|
Scott Ullrich
|
}
|
| 1117 |
|
|
|
| 1118 |
3c2e5528
|
Scott Ullrich
|
|
| 1119 |
5b237745
|
Scott Ullrich
|
/******************/
|
| 1120 |
|
|
/* Misc functions */
|
| 1121 |
afb07cf1
|
Scott Ullrich
|
/******************/
|
| 1122 |
|
|
|
| 1123 |
|
|
/* find the first available device of type $type */
|
| 1124 |
|
|
function getnxt_if($type) {
|
| 1125 |
|
|
global $config;
|
| 1126 |
|
|
|
| 1127 |
|
|
/* initialize variables */
|
| 1128 |
|
|
$iface_list = array();
|
| 1129 |
|
|
$max = ($type == 'tun') ? 17 : 4;
|
| 1130 |
|
|
|
| 1131 |
|
|
/* construct list of valid interfaces */
|
| 1132 |
|
|
for ($i = 0; $i < $max ; $i++)
|
| 1133 |
|
|
array_push($iface_list, $type . $i);
|
| 1134 |
|
|
|
| 1135 |
|
|
/* delete interface in use from the list */
|
| 1136 |
|
|
if ($a_server = $config['ovpn']['server']['tunnel']) {
|
| 1137 |
|
|
foreach ($a_server as $server) {
|
| 1138 |
|
|
$entry = array();
|
| 1139 |
|
|
array_push($entry, $server['tun_iface']);
|
| 1140 |
|
|
$iface_list = array_diff($iface_list, $entry);
|
| 1141 |
|
|
}
|
| 1142 |
|
|
}
|
| 1143 |
|
|
|
| 1144 |
|
|
/* same for list of client tunnels */
|
| 1145 |
|
|
if ($a_client = $config['ovpn']['client']['tunnel']) {
|
| 1146 |
|
|
foreach ($a_client as $client) {
|
| 1147 |
|
|
$entry = array();
|
| 1148 |
|
|
array_push($entry, $client['if']);
|
| 1149 |
|
|
$iface_list = array_diff($iface_list, $entry);
|
| 1150 |
|
|
}
|
| 1151 |
|
|
}
|
| 1152 |
|
|
|
| 1153 |
|
|
/* return first element of list, if list of interfaces isn't empty */
|
| 1154 |
|
|
if (count($iface_list))
|
| 1155 |
|
|
return array_shift($iface_list);
|
| 1156 |
|
|
else
|
| 1157 |
|
|
return false;
|
| 1158 |
|
|
}
|
| 1159 |
|
|
|
| 1160 |
|
|
/* find the next best available port */
|
| 1161 |
|
|
function getnxt_port() {
|
| 1162 |
|
|
|
| 1163 |
|
|
/* construct list of valid ports */
|
| 1164 |
|
|
$port_list = free_port_list();
|
| 1165 |
|
|
|
| 1166 |
|
|
/* return first element of list, if list of ports isn't empty */
|
| 1167 |
|
|
if (count($port_list))
|
| 1168 |
|
|
return array_shift($port_list);
|
| 1169 |
|
|
else
|
| 1170 |
|
|
return false;
|
| 1171 |
|
|
}
|
| 1172 |
|
|
|
| 1173 |
|
|
/* construct list of free ports */
|
| 1174 |
|
|
function free_port_list() {
|
| 1175 |
|
|
global $config;
|
| 1176 |
|
|
|
| 1177 |
|
|
/* initialize variables */
|
| 1178 |
|
|
$port_list = array();
|
| 1179 |
|
|
$first_port = 1194;
|
| 1180 |
|
|
$max = $first_port + 21;
|
| 1181 |
|
|
|
| 1182 |
|
|
for ($i = $first_port; $i < $max; $i++)
|
| 1183 |
|
|
array_push($port_list, $i);
|
| 1184 |
|
|
|
| 1185 |
|
|
/* delete port in use from the list */
|
| 1186 |
|
|
if ($a_server = $config['ovpn']['server']['tunnel']) {
|
| 1187 |
|
|
foreach ($a_server as $server) {
|
| 1188 |
|
|
$entry = array();
|
| 1189 |
|
|
array_push($entry, $server['port']);
|
| 1190 |
|
|
$port_list = array_diff($port_list, $entry);
|
| 1191 |
|
|
}
|
| 1192 |
|
|
}
|
| 1193 |
|
|
|
| 1194 |
|
|
/* same for list of client tunnels */
|
| 1195 |
|
|
if ($a_client = $config['ovpn']['client']['tunnel']) {
|
| 1196 |
|
|
foreach ($a_client as $client) {
|
| 1197 |
|
|
$entry = array();
|
| 1198 |
|
|
array_push($entry, $client['cport']);
|
| 1199 |
|
|
$port_list = array_diff($port_list, $entry);
|
| 1200 |
|
|
}
|
| 1201 |
|
|
}
|
| 1202 |
|
|
|
| 1203 |
|
|
return $port_list;
|
| 1204 |
|
|
}
|
| 1205 |
|
|
|
| 1206 |
|
|
/* construct list of used ports */
|
| 1207 |
|
|
function used_port_list() {
|
| 1208 |
|
|
global $config;
|
| 1209 |
|
|
|
| 1210 |
|
|
/* initialize variables */
|
| 1211 |
|
|
$port_list = array();
|
| 1212 |
|
|
|
| 1213 |
|
|
/* add used ports to the list */
|
| 1214 |
|
|
if ($a_server = $config['ovpn']['server']['tunnel']) {
|
| 1215 |
|
|
foreach ($a_server as $server) {
|
| 1216 |
|
|
if (isset($server['enable']))
|
| 1217 |
|
|
array_push($port_list, $server['port']);
|
| 1218 |
|
|
}
|
| 1219 |
|
|
}
|
| 1220 |
|
|
|
| 1221 |
|
|
/* same for list of client tunnels */
|
| 1222 |
|
|
if ($a_client = $config['ovpn']['client']['tunnel']) {
|
| 1223 |
|
|
foreach ($a_client as $client) {
|
| 1224 |
|
|
if (isset($client['enable']))
|
| 1225 |
|
|
array_push($port_list, $client['cport']);
|
| 1226 |
|
|
}
|
| 1227 |
|
|
}
|
| 1228 |
|
|
|
| 1229 |
|
|
return $port_list;
|
| 1230 |
|
|
}
|
| 1231 |
|
|
|
| 1232 |
|
|
/* construct list of bindings used for a specified port */
|
| 1233 |
|
|
function used_bind_list($port) {
|
| 1234 |
|
|
global $config;
|
| 1235 |
|
|
|
| 1236 |
|
|
/* initialize variables */
|
| 1237 |
|
|
$bind_list = array();
|
| 1238 |
|
|
|
| 1239 |
|
|
/* add used bindings to the list */
|
| 1240 |
|
|
if ($a_server = $config['ovpn']['server']['tunnel']) {
|
| 1241 |
|
|
foreach ($a_server as $server) {
|
| 1242 |
|
|
if (isset($server['enable']) && $server['port'] == $port)
|
| 1243 |
|
|
array_push($bind_list, $server['bind_iface']);
|
| 1244 |
|
|
}
|
| 1245 |
|
|
}
|
| 1246 |
|
|
|
| 1247 |
|
|
/* client daemon always binds to 0.0.0.0 */
|
| 1248 |
|
|
if ($a_client = $config['ovpn']['client']['tunnel']) {
|
| 1249 |
|
|
foreach ($a_client as $client) {
|
| 1250 |
|
|
if (isset($client['enable']) && $client['cport'] == $port)
|
| 1251 |
|
|
array_push($bind_list, "all");
|
| 1252 |
|
|
}
|
| 1253 |
|
|
}
|
| 1254 |
|
|
|
| 1255 |
|
|
/* return list of bindings */
|
| 1256 |
|
|
return $bind_list;
|
| 1257 |
|
|
}
|
| 1258 |
5b237745
|
Scott Ullrich
|
|
| 1259 |
|
|
/* Calculate the last address in a range given the start and /prefix */
|
| 1260 |
|
|
function ovpn_calc_end($start, $prefix){
|
| 1261 |
|
|
$first = ip2long($start);
|
| 1262 |
|
|
$last = pow(2,(32 - $prefix)) - 1 + $first;
|
| 1263 |
|
|
return long2ip($last);
|
| 1264 |
|
|
}
|
| 1265 |
|
|
|
| 1266 |
|
|
/* Calculate a mask given a /prefix */
|
| 1267 |
|
|
function ovpn_calc_mask($prefix){
|
| 1268 |
|
|
return long2ip(ip2long("255.255.255.255") - (pow( 2, (32 - $prefix)) - 1));
|
| 1269 |
|
|
}
|
| 1270 |
|
|
|
| 1271 |
3c2e5528
|
Scott Ullrich
|
/* Port in use */
|
| 1272 |
|
|
function ovpn_port_inuse_server($port){
|
| 1273 |
|
|
global $config;
|
| 1274 |
afb07cf1
|
Scott Ullrich
|
if ($a_server = $config['ovpn']['server']['tunnel']) {
|
| 1275 |
|
|
foreach ($a_server as $server) {
|
| 1276 |
|
|
if ($server['port'] == $port) {
|
| 1277 |
|
|
return true;
|
| 1278 |
|
|
}
|
| 1279 |
3c2e5528
|
Scott Ullrich
|
}
|
| 1280 |
|
|
}
|
| 1281 |
|
|
return false;
|
| 1282 |
|
|
}
|
| 1283 |
|
|
|
| 1284 |
5b237745
|
Scott Ullrich
|
/* Read in a file from the $_FILES array */
|
| 1285 |
|
|
function ovpn_get_file($file){
|
| 1286 |
|
|
global $g;
|
| 1287 |
|
|
|
| 1288 |
|
|
if (!is_uploaded_file($_FILES[$file]['tmp_name'])){
|
| 1289 |
|
|
trigger_error("Bad file upload".$_FILES[$file]['error'], E_USER_NOTICE);
|
| 1290 |
|
|
return NULL;
|
| 1291 |
|
|
}
|
| 1292 |
|
|
$contents = file_get_contents($_FILES[$file]['tmp_name']);
|
| 1293 |
|
|
return $contents;
|
| 1294 |
|
|
}
|
| 1295 |
|
|
|
| 1296 |
|
|
|
| 1297 |
|
|
/* Get the IP address of a specified interface */
|
| 1298 |
|
|
function ovpn_get_ip($iface){
|
| 1299 |
|
|
global $config;
|
| 1300 |
|
|
|
| 1301 |
|
|
if ($iface == 'wan')
|
| 1302 |
|
|
return get_current_wan_address();
|
| 1303 |
|
|
|
| 1304 |
|
|
if ($config['interfaces'][$iface]['bridge'])
|
| 1305 |
|
|
/* No bridging (yet) */
|
| 1306 |
|
|
return false;
|
| 1307 |
|
|
return $config['interfaces'][$iface]['ipaddr'];
|
| 1308 |
|
|
}
|
| 1309 |
|
|
|
| 1310 |
707e9964
|
Scott Ullrich
|
|
| 1311 |
5b237745
|
Scott Ullrich
|
/* Get a list of the cipher options supported by OpenVPN */
|
| 1312 |
|
|
function ovpn_get_cipher_list(){
|
| 1313 |
|
|
|
| 1314 |
|
|
/* exec("/usr/local/sbin/openvpn --show-ciphers", $raw);
|
| 1315 |
|
|
print_r ($raw);
|
| 1316 |
|
|
|
| 1317 |
|
|
$ciphers = preg_grep('/ bit default key /', $raw);
|
| 1318 |
|
|
|
| 1319 |
|
|
for($i = 0; $i <count($ciphers); $i++){
|
| 1320 |
|
|
$tmp = explode(' ',$ciphers[$i]);
|
| 1321 |
|
|
$cipher_list["$tmp[0]"] = "{$tmp[0]} ({$tmp[1]} {$tmp[2]})";
|
| 1322 |
|
|
}
|
| 1323 |
|
|
*/
|
| 1324 |
|
|
$cipher_list = array('DES-CBC' => 'DES-CBC (64 bit)',
|
| 1325 |
|
|
'RC2-CBC' => 'RC2-CBC (128 bit)',
|
| 1326 |
|
|
'DES-EDE-CBC' => 'DES-EDE-CBC (128 bit)',
|
| 1327 |
|
|
'DES-EDE3-CBC' => 'DES-EDE3-CBC (192 bit)',
|
| 1328 |
|
|
'DESX-CBC' => 'DESX-CBC (192 bit)',
|
| 1329 |
|
|
'BF-CBC' => 'BF-CBC (128 bit)',
|
| 1330 |
|
|
'RC2-40-CBC' => 'RC2-40-CBC (40 bit)',
|
| 1331 |
|
|
'CAST5-CBC' => 'CAST5-CBC (128 bit)',
|
| 1332 |
|
|
'RC5-CBC' => 'RC5-CBC (128 bit)',
|
| 1333 |
|
|
'RC2-64-CBC' => 'RC2-64-CBC (64 bit)',
|
| 1334 |
|
|
'AES-128-CBC' => 'AES-128-CBC (128 bit)',
|
| 1335 |
|
|
'AES-192-CBC' => 'AES-192-CBC (192 bit)',
|
| 1336 |
|
|
'AES-256-CBC' => 'AES-256-CBC (256 bit)');
|
| 1337 |
|
|
return $cipher_list;
|
| 1338 |
|
|
}
|
| 1339 |
|
|
|
| 1340 |
|
|
|
| 1341 |
707e9964
|
Scott Ullrich
|
/* Get optional interface */
|
| 1342 |
|
|
/* needs tunneling interface (tun0, tun1, tap0, ...) */
|
| 1343 |
|
|
/* returns optional interface name (opt2, opt3, ...) */
|
| 1344 |
|
|
function ovpn_get_opt_interface($tun){
|
| 1345 |
|
|
global $config;
|
| 1346 |
|
|
|
| 1347 |
|
|
for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
|
| 1348 |
|
|
$ifname = 'opt' . $i;
|
| 1349 |
|
|
|
| 1350 |
|
|
if (isset($config['interfaces']['opt' . $i]['ovpn']))
|
| 1351 |
|
|
if ($config['interfaces'][$ifname]['if'] == "$tun")
|
| 1352 |
|
|
return $ifname;
|
| 1353 |
|
|
}
|
| 1354 |
|
|
/* not found? */
|
| 1355 |
|
|
return false;
|
| 1356 |
|
|
}
|
| 1357 |
|
|
|
| 1358 |
5b237745
|
Scott Ullrich
|
/* Build a list of the current real interfaces */
|
| 1359 |
|
|
function ovpn_real_interface_list(){
|
| 1360 |
|
|
global $config;
|
| 1361 |
|
|
|
| 1362 |
|
|
$interfaces = array('all' => 'ALL',
|
| 1363 |
|
|
'lan' => 'LAN',
|
| 1364 |
|
|
'wan' => 'WAN');
|
| 1365 |
|
|
for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
|
| 1366 |
|
|
if (isset($config['interfaces']['opt' . $i]['ovpn']))
|
| 1367 |
|
|
/* Hide our own interface */
|
| 1368 |
|
|
break;
|
| 1369 |
|
|
if (isset($config['interfaces']['opt' . $i]['enable']))
|
| 1370 |
|
|
$interfaces['opt' . $i] = $config['interfaces']['opt' . $i]['descr'];
|
| 1371 |
|
|
}
|
| 1372 |
|
|
return $interfaces;
|
| 1373 |
|
|
}
|
| 1374 |
|
|
|
| 1375 |
afb07cf1
|
Scott Ullrich
|
/* called by interfaces_opt.php */
|
| 1376 |
|
|
function ovpn_ccd_sort() {
|
| 1377 |
|
|
global $g, $config;
|
| 1378 |
|
|
|
| 1379 |
|
|
function ccdcmp($a, $b) {
|
| 1380 |
|
|
return strcmp($a['cn'][0], $b['cn'][0]);
|
| 1381 |
|
|
}
|
| 1382 |
|
|
|
| 1383 |
|
|
usort($config['ovpn']['server']['ccd'], "ccdcmp");
|
| 1384 |
|
|
|
| 1385 |
|
|
}
|
| 1386 |
|
|
|
| 1387 |
|
|
/* called by interfaces_opt.php */
|
| 1388 |
|
|
function ovpn_config_post() {
|
| 1389 |
|
|
global $_POST, $optcfg, $pconfig;
|
| 1390 |
|
|
|
| 1391 |
|
|
unset($input_errors);
|
| 1392 |
|
|
|
| 1393 |
|
|
/* bridge check */
|
| 1394 |
|
|
if ($_POST['bridge'] && strstr($optcfg['if'], "tun"))
|
| 1395 |
|
|
$input_errors[] = "Bridging a tun interface isn't possible.";
|
| 1396 |
|
|
|
| 1397 |
|
|
if (($_POST['enable'] && !isset($optcfg['enable'])) || (!$_POST['enable'] && isset($optcfg['enable'])))
|
| 1398 |
|
|
$input_errors[] = "Enabling or disabling a tunneling interface isn't supported on this page.";
|
| 1399 |
|
|
|
| 1400 |
|
|
if ($_POST['ipaddr'] != $optcfg['ipaddr'])
|
| 1401 |
|
|
$input_errors[] = "Changing the IP address of a tunneling interfaces isn't supported on this page.";
|
| 1402 |
|
|
|
| 1403 |
|
|
if ($_POST['subnet'] != $optcfg['subnet'])
|
| 1404 |
|
|
$input_errors[] = "Changing the subnet mask of a tunneling interfaces isn't supported on this page.";
|
| 1405 |
|
|
|
| 1406 |
|
|
if ($input_errors) {
|
| 1407 |
|
|
$pconfig['ipaddr'] = $optcfg['ipaddr'];
|
| 1408 |
|
|
$pconfig['subnet'] = $optcfg['subnet'];
|
| 1409 |
|
|
$pconfig['bridge'] = $optcfg['bridge'];
|
| 1410 |
|
|
$pconfig['enable'] = isset($optcfg['enable']);
|
| 1411 |
|
|
}
|
| 1412 |
|
|
|
| 1413 |
|
|
return $input_errors;
|
| 1414 |
|
|
}
|
| 1415 |
|
|
|
| 1416 |
|
|
function check_bridging($bridge) {
|
| 1417 |
|
|
global $config;
|
| 1418 |
|
|
unset($input_errors);
|
| 1419 |
|
|
|
| 1420 |
|
|
/* double bridging? */
|
| 1421 |
|
|
for ($i = 1; isset($config['interfaces']['opt' . $i]); $i++) {
|
| 1422 |
|
|
if ($i != $index) {
|
| 1423 |
|
|
if ($config['interfaces']['opt' . $i]['bridge'] == $bridge) {
|
| 1424 |
|
|
$input_errors = "Optional interface {$i} " .
|
| 1425 |
|
|
"({$config['interfaces']['opt' . $i]['descr']}) is already bridged to " .
|
| 1426 |
|
|
"the specified interface.";
|
| 1427 |
|
|
} else if ($config['interfaces']['opt' . $i]['bridge'] == "opt{$index}") {
|
| 1428 |
|
|
$input_errors = "Optional interface {$i} " .
|
| 1429 |
|
|
"({$config['interfaces']['opt' . $i]['descr']}) is already bridged to " .
|
| 1430 |
|
|
"this interface.";
|
| 1431 |
|
|
}
|
| 1432 |
|
|
}
|
| 1433 |
|
|
}
|
| 1434 |
|
|
|
| 1435 |
|
|
if ($config['interfaces'][$bridge]['bridge'])
|
| 1436 |
|
|
$input_errors = "The specified interface is already bridged to another interface.";
|
| 1437 |
|
|
|
| 1438 |
|
|
return $input_errors;
|
| 1439 |
|
|
}
|
| 1440 |
|
|
|
| 1441 |
|
|
/*
|
| 1442 |
|
|
function is_specialnet($net) {
|
| 1443 |
|
|
$specialsrcdst = explode(" ", "lan");
|
| 1444 |
|
|
|
| 1445 |
|
|
if (in_array($net, $specialsrcdst))
|
| 1446 |
|
|
return true;
|
| 1447 |
|
|
else
|
| 1448 |
|
|
return false;
|
| 1449 |
|
|
}
|
| 1450 |
|
|
*/
|
| 1451 |
|
|
|
| 1452 |
5b237745
|
Scott Ullrich
|
|
| 1453 |
|
|
/* lock openvpn information, decide that the lock file is stale after
|
| 1454 |
|
|
10 seconds */
|
| 1455 |
|
|
function ovpn_lock() {
|
| 1456 |
|
|
|
| 1457 |
|
|
global $g;
|
| 1458 |
|
|
|
| 1459 |
|
|
$lockfile = "{$g['varrun_path']}/ovpn.lock";
|
| 1460 |
|
|
|
| 1461 |
|
|
$n = 0;
|
| 1462 |
|
|
while ($n < 10) {
|
| 1463 |
|
|
/* open the lock file in append mode to avoid race condition */
|
| 1464 |
3c2e5528
|
Scott Ullrich
|
if ($fd = fopen($lockfile, "x")) {
|
| 1465 |
5b237745
|
Scott Ullrich
|
/* succeeded */
|
| 1466 |
|
|
fclose($fd);
|
| 1467 |
|
|
return;
|
| 1468 |
|
|
} else {
|
| 1469 |
|
|
/* file locked, wait and try again */
|
| 1470 |
|
|
sleep(1);
|
| 1471 |
|
|
$n++;
|
| 1472 |
|
|
}
|
| 1473 |
|
|
}
|
| 1474 |
|
|
}
|
| 1475 |
|
|
|
| 1476 |
|
|
/* unlock configuration file */
|
| 1477 |
|
|
function ovpn_unlock() {
|
| 1478 |
|
|
|
| 1479 |
|
|
global $g;
|
| 1480 |
|
|
|
| 1481 |
|
|
$lockfile = "{$g['varrun_path']}/ovpn.lock";
|
| 1482 |
|
|
|
| 1483 |
|
|
if (file_exists($lockfile))
|
| 1484 |
|
|
unlink($lockfile);
|
| 1485 |
|
|
}
|
| 1486 |
|
|
|
| 1487 |
2fe54e17
|
Scott Ullrich
|
?>
|