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<?php
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/*
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* openvpn.inc
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*
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* part of pfSense (https://www.pfsense.org)
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* Copyright (c) 2006 Fernando Lemos
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* Copyright (c) 2006-2013 BSD Perimeter
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* Copyright (c) 2013-2016 Electric Sheep Fencing
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* Copyright (c) 2014-2021 Rubicon Communications, LLC (Netgate)
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* All rights reserved.
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*
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* This file was rewritten from scratch by Fernando Lemos but
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* *MIGHT* contain code previously written by:
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*
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* Copyright (c) 2005 Peter Allgeyer <allgeyer_AT_web.de>
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* Copyright (c) 2004 Peter Curran (peter@closeconsultants.com).
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* All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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require_once('config.inc');
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require_once("certs.inc");
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require_once('pfsense-utils.inc');
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require_once("auth.inc");
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global $openvpn_prots;
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$openvpn_prots = array(
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"UDP4" => "UDP on IPv4 only",
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"UDP6" => "UDP on IPv6 only",
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"TCP4" => "TCP on IPv4 only",
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"TCP6" => "TCP on IPv6 only",
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"UDP" => "UDP IPv4 and IPv6 on all interfaces (multihome)",
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"TCP" => "TCP IPv4 and IPv6 on all interfaces (multihome)"
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);
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global $openvpn_dev_mode;
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$openvpn_dev_mode = array(
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"tun" => "tun - Layer 3 Tunnel Mode",
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"tap" => "tap - Layer 2 Tap Mode"
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);
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global $openvpn_verbosity_level;
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$openvpn_verbosity_level = array(
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0 => gettext("none"),
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1 => gettext("default"),
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2 => "2",
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3 => gettext("3 (recommended)"),
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4 => "4",
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5 => "5",
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6 => "6",
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7 => "7",
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8 => "8",
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9 => "9",
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10 => "10",
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11 => "11"
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);
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/*
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* The User Auth mode below is disabled because
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* OpenVPN erroneously requires that we provide
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* a CA configuration parameter. In this mode,
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* clients don't send a certificate so there is
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* no need for a CA. If we require that admins
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* provide one in the pfSense UI due to a bogus
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* requirement imposed by OpenVPN, it could be
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* considered very confusing ( I know I was ).
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*
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* -mgrooms
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*/
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global $openvpn_dh_lengths;
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$openvpn_dh_lengths = array(
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1024 => "1024 bit",
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2048 => "2048 bit",
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3072 => "3072 bit",
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4096 => "4096 bit",
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6144 => "6144 bit",
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7680 => "7680 bit",
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8192 => "8192 bit",
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15360 => "15360 bit",
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16384 => "16384 bit",
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"none" => "ECDH Only"
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);
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foreach ($openvpn_dh_lengths as $idx => $dhlen) {
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if (is_numeric($idx) && !file_exists("/etc/dh-parameters.{$idx}")) {
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unset($openvpn_dh_lengths[$idx]);
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}
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}
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global $openvpn_cert_depths;
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$openvpn_cert_depths = array(
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1 => gettext("One (Client+Server)"),
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2 => gettext("Two (Client+Intermediate+Server)"),
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3 => gettext("Three (Client+2xIntermediate+Server)"),
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4 => gettext("Four (Client+3xIntermediate+Server)"),
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5 => gettext("Five (Client+4xIntermediate+Server)")
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);
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global $openvpn_server_modes;
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$openvpn_server_modes = array(
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'p2p_tls' => gettext("Peer to Peer ( SSL/TLS )"),
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'p2p_shared_key' => gettext("Peer to Peer ( Shared Key )"),
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'server_tls' => gettext("Remote Access ( SSL/TLS )"),
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'server_user' => gettext("Remote Access ( User Auth )"),
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'server_tls_user' => gettext("Remote Access ( SSL/TLS + User Auth )"));
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global $openvpn_tls_server_modes;
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$openvpn_tls_server_modes = array('p2p_tls', 'server_tls', 'server_user', 'server_tls_user');
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global $openvpn_client_modes;
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$openvpn_client_modes = array(
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'p2p_tls' => gettext("Peer to Peer ( SSL/TLS )"),
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'p2p_shared_key' => gettext("Peer to Peer ( Shared Key )"));
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global $openvpn_allow_compression;
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$openvpn_allow_compression = array(
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'asym' => gettext("Decompress incoming, do not compress outgoing (Asymmetric)"),
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'no' => gettext("Refuse any non-stub compression (Most secure)"),
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'yes' => gettext("Compress packets (WARNING: Potentially dangerous!)"),
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);
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global $openvpn_compression_modes;
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$openvpn_compression_modes = array(
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'' => gettext("Disable Compression [Omit Preference]"),
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'none' => gettext("Disable Compression, retain compression packet framing [compress]"),
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'stub' => gettext("Enable Compression (stub) [compress stub]"),
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'stub-v2' => gettext("Enable Compression (stub v2) [compress stub-v2]"),
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'lz4' => gettext("LZ4 Compression [compress lz4]"),
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'lz4-v2' => gettext("LZ4 Compression v2 [compress lz4-v2]"),
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'lzo' => gettext("LZO Compression [compress lzo, equivalent to comp-lzo yes for compatibility]"),
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'noadapt' => gettext("Omit Preference, + Disable Adaptive LZO Compression [Legacy style, comp-noadapt]"),
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'adaptive' => gettext("Adaptive LZO Compression [Legacy style, comp-lzo adaptive]"),
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'yes' => gettext("LZO Compression [Legacy style, comp-lzo yes]"),
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'no' => gettext("No LZO Compression [Legacy style, comp-lzo no]"),
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);
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global $openvpn_topologies;
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$openvpn_topologies = array(
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'subnet' => gettext("Subnet -- One IP address per client in a common subnet"),
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'net30' => gettext("net30 -- Isolated /30 network per client")
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);
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global $openvpn_tls_modes;
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$openvpn_tls_modes = array(
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'auth' => gettext("TLS Authentication"),
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'crypt' => gettext("TLS Encryption and Authentication")
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);
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global $openvpn_ping_method;
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$openvpn_ping_method = array(
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'keepalive' => gettext("keepalive -- Use keepalive helper to define ping configuration"),
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'ping' => gettext("ping -- Define ping/ping-exit/ping-restart manually")
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);
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global $openvpn_default_keepalive_interval;
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$openvpn_default_keepalive_interval = 10;
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global $openvpn_default_keepalive_timeout;
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$openvpn_default_keepalive_timeout = 60;
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global $openvpn_ping_action;
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$openvpn_ping_action = array(
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'ping_restart' => gettext("ping-restart -- Restart OpenVPN after timeout"),
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'ping_exit' => gettext("ping-exit -- Exit OpenVPN after timeout")
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);
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global $openvpn_exit_notify_server;
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$openvpn_exit_notify_server = array(
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'none' => gettext("Disabled"),
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'1' => gettext("Reconnect to this server / Retry once"),
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'2' => gettext("Reconnect to next server / Retry twice"),
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);
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global $openvpn_exit_notify_client;
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$openvpn_exit_notify_client = array(
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'none' => gettext("Disabled"),
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);
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for ($i=1; $i<=5; $i++) {
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$openvpn_exit_notify_client[$i] = sprintf(gettext("Retry %dx"), $i);
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}
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function openvpn_build_mode_list() {
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global $openvpn_server_modes;
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$list = array();
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foreach ($openvpn_server_modes as $name => $desc) {
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$list[$name] = $desc;
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}
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return($list);
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}
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global $openvpn_interfacenames;
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function convert_openvpn_interface_to_friendly_descr($if) {
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global $openvpn_interfacenames;
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if (!is_array($openvpn_interfacenames)) {
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$openvpn_interfacenames = openvpn_build_if_list();
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}
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foreach($openvpn_interfacenames as $key => $value) {
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list($item_if, $item_ip) = explode("|", $key);
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if ($if == $item_if) {
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echo "$value";
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}
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}
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}
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function openvpn_build_if_list() {
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$list = array();
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$interfaces = get_configured_interface_with_descr();
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$viplist = get_configured_vip_list();
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foreach ($viplist as $vip => $address) {
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$interfaces[$vip.'|'.$address] = $address;
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if (get_vip_descr($address)) {
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$interfaces[$vip.'|'.$address] .= " (";
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$interfaces[$vip.'|'.$address] .= get_vip_descr($address);
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$interfaces[$vip.'|'.$address] .= ")";
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}
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}
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$grouplist = return_gateway_groups_array();
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foreach ($grouplist as $name => $group) {
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if ($group[0]['vip'] != "") {
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$vipif = $group[0]['vip'];
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} else {
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$vipif = $group[0]['int'];
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}
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$interfaces[$name] = "GW Group {$name}";
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}
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$interfaces['lo0'] = "Localhost";
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$interfaces['any'] = "any";
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foreach ($interfaces as $iface => $ifacename) {
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$list[$iface] = $ifacename;
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}
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return($list);
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}
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function openvpn_build_crl_list() {
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global $a_crl;
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256
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$list = array('' => 'None');
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258
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foreach ($a_crl as $crl) {
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$caname = "";
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261
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$ca = lookup_ca($crl['caref']);
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262
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if ($ca) {
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$caname = " (CA: {$ca['descr']})";
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}
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$list[$crl['refid']] = $crl['descr'] . $caname;
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}
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return($list);
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}
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function openvpn_build_cert_list($include_none = false, $prioritize_server_certs = false) {
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global $a_cert;
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275
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$openvpn_compatible_certs = cert_build_list('cert', 'OpenVPN');
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276
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if ($include_none) {
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$list = array('' => gettext('None (Username and/or Password required)'));
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} else {
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$list = array();
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}
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283
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$non_server_list = array();
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284
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if ($prioritize_server_certs) {
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$list[' '] = gettext("===== Server Certificates =====");
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$non_server_list[' '] = gettext("===== Non-Server Certificates =====");
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288
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}
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289
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foreach ($a_cert as $cert) {
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291
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if (!array_key_exists($cert['refid'], $openvpn_compatible_certs)) {
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continue;
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293
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}
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294
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$properties = array();
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295
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$propstr = "";
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296
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$ca = lookup_ca($cert['caref']);
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297
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$purpose = cert_get_purpose($cert['crt'], true);
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298
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299
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if ($purpose['server'] == "Yes") {
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300
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$properties[] = gettext("Server: Yes");
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301
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} elseif ($prioritize_server_certs) {
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$properties[] = gettext("Server: NO");
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}
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304
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if ($ca) {
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305
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$properties[] = sprintf(gettext("CA: %s"), $ca['descr']);
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}
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307
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if (cert_in_use($cert['refid'])) {
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308
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$properties[] = gettext("In Use");
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309
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}
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310
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if (is_cert_revoked($cert)) {
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311
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$properties[] = gettext("Revoked");
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312
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}
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313
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314
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if (!empty($properties)) {
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315
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$propstr = " (" . implode(", ", $properties) . ")";
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316
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}
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317
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318
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if ($prioritize_server_certs) {
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319
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if ($purpose['server'] == "Yes") {
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320
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$list[$cert['refid']] = $cert['descr'] . $propstr;
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321
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} else {
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322
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$non_server_list[$cert['refid']] = $cert['descr'] . $propstr;
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323
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}
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324
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} else {
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325
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$list[$cert['refid']] = $cert['descr'] . $propstr;
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}
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327
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}
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328
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return(array('server' => $list, 'non-server' => $non_server_list));
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330
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}
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331
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332
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function openvpn_build_bridge_list() {
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333
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$list = array();
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334
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335
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$serverbridge_interface['none'] = "none";
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336
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$serverbridge_interface = array_merge($serverbridge_interface, get_configured_interface_with_descr());
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337
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$viplist = get_configured_vip_list();
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338
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339
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foreach ($viplist as $vip => $address) {
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340
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$serverbridge_interface[$vip.'|'.$address] = $address;
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341
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if (get_vip_descr($address)) {
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342
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$serverbridge_interface[$vip.'|'.$address] .= " (". get_vip_descr($address) .")";
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343
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}
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344
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}
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345
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346
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foreach ($serverbridge_interface as $iface => $ifacename) {
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347
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$list[$iface] = htmlspecialchars($ifacename);
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348
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}
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349
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350
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return($list);
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351
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}
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352
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353
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function openvpn_create_key() {
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354
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355
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$fp = popen("/usr/local/sbin/openvpn --genkey secret /dev/stdout 2>/dev/null", "r");
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356
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if (!$fp) {
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357
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return false;
|
|
358
|
}
|
|
359
|
|
|
360
|
$rslt = stream_get_contents($fp);
|
|
361
|
pclose($fp);
|
|
362
|
|
|
363
|
return $rslt;
|
|
364
|
}
|
|
365
|
|
|
366
|
function openvpn_create_dhparams($bits) {
|
|
367
|
|
|
368
|
$fp = popen("/usr/bin/openssl dhparam {$bits} 2>/dev/null", "r");
|
|
369
|
if (!$fp) {
|
|
370
|
return false;
|
|
371
|
}
|
|
372
|
|
|
373
|
$rslt = stream_get_contents($fp);
|
|
374
|
pclose($fp);
|
|
375
|
|
|
376
|
return $rslt;
|
|
377
|
}
|
|
378
|
|
|
379
|
function openvpn_vpnid_used($vpnid) {
|
|
380
|
global $config;
|
|
381
|
|
|
382
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
383
|
foreach ($config['openvpn']['openvpn-server'] as & $settings) {
|
|
384
|
if ($vpnid == $settings['vpnid']) {
|
|
385
|
return true;
|
|
386
|
}
|
|
387
|
}
|
|
388
|
}
|
|
389
|
|
|
390
|
if (is_array($config['openvpn']['openvpn-client'])) {
|
|
391
|
foreach ($config['openvpn']['openvpn-client'] as & $settings) {
|
|
392
|
if ($vpnid == $settings['vpnid']) {
|
|
393
|
return true;
|
|
394
|
}
|
|
395
|
}
|
|
396
|
}
|
|
397
|
|
|
398
|
return false;
|
|
399
|
}
|
|
400
|
|
|
401
|
function openvpn_vpnid_next() {
|
|
402
|
|
|
403
|
$vpnid = 1;
|
|
404
|
while (openvpn_vpnid_used($vpnid)) {
|
|
405
|
$vpnid++;
|
|
406
|
}
|
|
407
|
|
|
408
|
return $vpnid;
|
|
409
|
}
|
|
410
|
|
|
411
|
function openvpn_port_used($prot, $interface, $port, $curvpnid = 0) {
|
|
412
|
global $config;
|
|
413
|
|
|
414
|
$ovpn_settings = array();
|
|
415
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
416
|
$ovpn_settings = $config['openvpn']['openvpn-server'];
|
|
417
|
}
|
|
418
|
if (is_array($config['openvpn']['openvpn-client'])) {
|
|
419
|
$ovpn_settings = array_merge($ovpn_settings,
|
|
420
|
$config['openvpn']['openvpn-client']);
|
|
421
|
}
|
|
422
|
|
|
423
|
foreach ($ovpn_settings as $settings) {
|
|
424
|
if (isset($settings['disable'])) {
|
|
425
|
continue;
|
|
426
|
}
|
|
427
|
|
|
428
|
if ($curvpnid != 0 && $curvpnid == $settings['vpnid']) {
|
|
429
|
continue;
|
|
430
|
}
|
|
431
|
|
|
432
|
/* (TCP|UDP)(4|6) does not conflict unless interface is any */
|
|
433
|
if (($interface != "any" && $settings['interface'] != "any") &&
|
|
434
|
(strlen($prot) == 4) &&
|
|
435
|
(strlen($settings['protocol']) == 4) &&
|
|
436
|
substr($prot,0,3) == substr($settings['protocol'],0,3) &&
|
|
437
|
substr($prot,3,1) != substr($settings['protocol'],3,1)) {
|
|
438
|
continue;
|
|
439
|
}
|
|
440
|
|
|
441
|
if ($port == $settings['local_port'] &&
|
|
442
|
substr($prot,0,3) == substr($settings['protocol'],0,3) &&
|
|
443
|
($interface == $settings['interface'] ||
|
|
444
|
$interface == "any" || $settings['interface'] == "any")) {
|
|
445
|
return $settings['vpnid'];
|
|
446
|
}
|
|
447
|
}
|
|
448
|
|
|
449
|
return 0;
|
|
450
|
}
|
|
451
|
|
|
452
|
function openvpn_port_next($prot, $interface = "wan") {
|
|
453
|
|
|
454
|
$port = 1194;
|
|
455
|
while (openvpn_port_used($prot, $interface, $port)) {
|
|
456
|
$port++;
|
|
457
|
}
|
|
458
|
while (openvpn_port_used($prot, "any", $port)) {
|
|
459
|
$port++;
|
|
460
|
}
|
|
461
|
|
|
462
|
return $port;
|
|
463
|
}
|
|
464
|
|
|
465
|
function openvpn_get_cipherlist() {
|
|
466
|
|
|
467
|
$ciphers = array();
|
|
468
|
$cipher_out = shell_exec('/usr/local/sbin/openvpn --show-ciphers | /usr/bin/grep \'(.*key\' | sed \'s/, TLS client\/server mode only//\'');
|
|
469
|
$cipher_lines = explode("\n", trim($cipher_out));
|
|
470
|
sort($cipher_lines);
|
|
471
|
foreach ($cipher_lines as $line) {
|
|
472
|
$words = explode(' ', $line, 2);
|
|
473
|
$ciphers[$words[0]] = "{$words[0]} {$words[1]}";
|
|
474
|
}
|
|
475
|
$ciphers["none"] = gettext("None (No Encryption)");
|
|
476
|
return $ciphers;
|
|
477
|
}
|
|
478
|
|
|
479
|
function openvpn_get_curvelist() {
|
|
480
|
global $cert_curve_compatible;
|
|
481
|
$curves = array();
|
|
482
|
$curves["none"] = gettext("Use Default");
|
|
483
|
foreach ($cert_curve_compatible['OpenVPN'] as $curve) {
|
|
484
|
$curves[$curve] = $curve;
|
|
485
|
}
|
|
486
|
return $curves;
|
|
487
|
}
|
|
488
|
|
|
489
|
function openvpn_validate_curve($curve) {
|
|
490
|
$curves = openvpn_get_curvelist();
|
|
491
|
return array_key_exists($curve, $curves);
|
|
492
|
}
|
|
493
|
|
|
494
|
/* Obtain the list of digest algorithms supported by openssl and their alternate names */
|
|
495
|
function openvpn_get_openssldigestmappings() {
|
|
496
|
$digests = array();
|
|
497
|
$digest_out = shell_exec('/usr/bin/openssl list-message-digest-algorithms | /usr/bin/grep "=>"');
|
|
498
|
$digest_lines = explode("\n", trim($digest_out));
|
|
499
|
sort($digest_lines);
|
|
500
|
foreach ($digest_lines as $line) {
|
|
501
|
$words = explode(' => ', $line, 2);
|
|
502
|
$digests[$words[0]] = $words[1];
|
|
503
|
}
|
|
504
|
return $digests;
|
|
505
|
}
|
|
506
|
|
|
507
|
/* Obtain the list of digest algorithms supported by openvpn */
|
|
508
|
function openvpn_get_digestlist() {
|
|
509
|
/* Grab the list from OpenSSL to check for duplicates or aliases */
|
|
510
|
$openssl_digest_mappings = openvpn_get_openssldigestmappings();
|
|
511
|
$digests = array();
|
|
512
|
$digest_out = shell_exec('/usr/local/sbin/openvpn --show-digests | /usr/bin/grep "digest size" | /usr/bin/awk \'{print $1, "(" $2 "-" $3 ")";}\'');
|
|
513
|
$digest_lines = explode("\n", trim($digest_out));
|
|
514
|
sort($digest_lines);
|
|
515
|
foreach ($digest_lines as $line) {
|
|
516
|
$words = explode(' ', $line);
|
|
517
|
/* Only add the entry if it is NOT also listed as being an alias/mapping by OpenSSL */
|
|
518
|
if (!array_key_exists($words[0], $openssl_digest_mappings)) {
|
|
519
|
$digests[$words[0]] = "{$words[0]} {$words[1]}";
|
|
520
|
}
|
|
521
|
}
|
|
522
|
$digests["none"] = gettext("None (No Authentication)");
|
|
523
|
return $digests;
|
|
524
|
}
|
|
525
|
|
|
526
|
/* Check to see if a digest name is an alias and if so, find the actual digest
|
|
527
|
* algorithm instead. Useful for upgrade code that has to translate aliased
|
|
528
|
* algorithms to their actual names.
|
|
529
|
*/
|
|
530
|
function openvpn_remap_digest($digest) {
|
|
531
|
$openssl_digest_mappings = openvpn_get_openssldigestmappings();
|
|
532
|
if (array_key_exists($digest, $openssl_digest_mappings)) {
|
|
533
|
/* Some mappings point to other mappings, keep going until we find the actual digest algorithm */
|
|
534
|
if (array_key_exists($openssl_digest_mappings[$digest], $openssl_digest_mappings)) {
|
|
535
|
return openvpn_remap_digest($openssl_digest_mappings[$digest]);
|
|
536
|
} else {
|
|
537
|
return $openssl_digest_mappings[$digest];
|
|
538
|
}
|
|
539
|
}
|
|
540
|
return $digest;
|
|
541
|
}
|
|
542
|
|
|
543
|
function openvpn_get_keydirlist() {
|
|
544
|
$keydirs = array(
|
|
545
|
'default' => gettext('Use default direction'),
|
|
546
|
'0' => gettext('Direction 0'),
|
|
547
|
'1' => gettext('Direction 1'),
|
|
548
|
'2' => gettext('Both directions'),
|
|
549
|
);
|
|
550
|
return $keydirs;
|
|
551
|
}
|
|
552
|
|
|
553
|
function openvpn_get_engines() {
|
|
554
|
$openssl_engines = array('none' => gettext('No Hardware Crypto Acceleration'));
|
|
555
|
exec("/usr/bin/openssl engine -t -c", $openssl_engine_output);
|
|
556
|
$openssl_engine_output = implode("\n", $openssl_engine_output);
|
|
557
|
$openssl_engine_output = preg_replace("/\\n\\s+/", "|", $openssl_engine_output);
|
|
558
|
$openssl_engine_output = explode("\n", $openssl_engine_output);
|
|
559
|
|
|
560
|
foreach ($openssl_engine_output as $oeo) {
|
|
561
|
$keep = true;
|
|
562
|
$details = explode("|", $oeo);
|
|
563
|
$engine = array_shift($details);
|
|
564
|
$linematch = array();
|
|
565
|
preg_match("/\((.*)\)\s(.*)/", $engine, $linematch);
|
|
566
|
foreach ($details as $dt) {
|
|
567
|
if (strpos($dt, "unavailable") !== FALSE) {
|
|
568
|
$keep = false;
|
|
569
|
}
|
|
570
|
if (strpos($dt, "available") !== FALSE) {
|
|
571
|
continue;
|
|
572
|
}
|
|
573
|
if (strpos($dt, "[") !== FALSE) {
|
|
574
|
$ciphers = trim($dt, "[]");
|
|
575
|
}
|
|
576
|
}
|
|
577
|
if (!empty($ciphers)) {
|
|
578
|
$ciphers = " - " . $ciphers;
|
|
579
|
}
|
|
580
|
if (strlen($ciphers) > 60) {
|
|
581
|
$ciphers = substr($ciphers, 0, 60) . " ... ";
|
|
582
|
}
|
|
583
|
if ($keep) {
|
|
584
|
$openssl_engines[$linematch[1]] = $linematch[2] . $ciphers;
|
|
585
|
}
|
|
586
|
}
|
|
587
|
return $openssl_engines;
|
|
588
|
}
|
|
589
|
|
|
590
|
function openvpn_get_buffer_values() {
|
|
591
|
$sendbuf_max = get_single_sysctl('net.inet.tcp.sendbuf_max');
|
|
592
|
$recvbuf_max = get_single_sysctl('net.inet.tcp.recvbuf_max');
|
|
593
|
/* Usually these two are equal, but if they are not, take whichever one is lower. */
|
|
594
|
$buffer_max = ($sendbuf_max <= $recvbuf_max) ? $sendbuf_max : $recvbuf_max;
|
|
595
|
$buffer_values = array('' => gettext('Default'));
|
|
596
|
for ($bs = 32; $bs >= 1; $bs /= 2) {
|
|
597
|
$buffer_values[$buffer_max/$bs] = format_bytes($buffer_max/$bs);
|
|
598
|
}
|
|
599
|
return $buffer_values;
|
|
600
|
}
|
|
601
|
|
|
602
|
function openvpn_validate_engine($engine) {
|
|
603
|
$engines = openvpn_get_engines();
|
|
604
|
return array_key_exists($engine, $engines);
|
|
605
|
}
|
|
606
|
|
|
607
|
function openvpn_validate_host($value, $name) {
|
|
608
|
$value = trim($value);
|
|
609
|
if (empty($value) || (!is_domain($value) && !is_ipaddr($value))) {
|
|
610
|
return sprintf(gettext("The field '%s' must contain a valid IP address or domain name."), $name);
|
|
611
|
}
|
|
612
|
return false;
|
|
613
|
}
|
|
614
|
|
|
615
|
function openvpn_validate_port($value, $name, $first_port = 0) {
|
|
616
|
$value = trim($value);
|
|
617
|
if (!is_numeric($first_port)) {
|
|
618
|
$first_port = 0;
|
|
619
|
}
|
|
620
|
if (empty($value) || !is_numeric($value) || $value < $first_port || ($value > 65535)) {
|
|
621
|
return sprintf(gettext("The field '%s' must contain a valid port, ranging from %s to 65535."), $name, $first_port);
|
|
622
|
}
|
|
623
|
return false;
|
|
624
|
}
|
|
625
|
|
|
626
|
function openvpn_validate_cidr($value, $name, $multiple = false, $ipproto = "ipv4") {
|
|
627
|
$value = trim($value);
|
|
628
|
$error = false;
|
|
629
|
if (empty($value)) {
|
|
630
|
return false;
|
|
631
|
}
|
|
632
|
$networks = explode(',', $value);
|
|
633
|
|
|
634
|
if (!$multiple && (count($networks) > 1)) {
|
|
635
|
return sprintf(gettext("The field '%1\$s' must contain a single valid %2\$s CIDR range."), $name, $ipproto);
|
|
636
|
}
|
|
637
|
|
|
638
|
foreach ($networks as $network) {
|
|
639
|
if ($ipproto == "ipv4") {
|
|
640
|
$error = !openvpn_validate_cidr_ipv4($network);
|
|
641
|
} else {
|
|
642
|
$error = !openvpn_validate_cidr_ipv6($network);
|
|
643
|
}
|
|
644
|
if ($error) {
|
|
645
|
break;
|
|
646
|
}
|
|
647
|
}
|
|
648
|
|
|
649
|
if ($error) {
|
|
650
|
return sprintf(gettext("The field '%1\$s' must contain only valid %2\$s CIDR range(s) separated by commas."), $name, $ipproto);
|
|
651
|
} else {
|
|
652
|
return false;
|
|
653
|
}
|
|
654
|
}
|
|
655
|
|
|
656
|
function openvpn_validate_cidr_ipv4($value) {
|
|
657
|
$value = trim($value);
|
|
658
|
if (!empty($value)) {
|
|
659
|
list($ip, $mask) = explode('/', $value);
|
|
660
|
if (!is_ipaddrv4($ip) or !is_numeric($mask) or ($mask > 32) or ($mask < 0)) {
|
|
661
|
return false;
|
|
662
|
}
|
|
663
|
}
|
|
664
|
return true;
|
|
665
|
}
|
|
666
|
|
|
667
|
function openvpn_validate_cidr_ipv6($value) {
|
|
668
|
$value = trim($value);
|
|
669
|
if (!empty($value)) {
|
|
670
|
list($ipv6, $prefix) = explode('/', $value);
|
|
671
|
if (empty($prefix)) {
|
|
672
|
$prefix = "128";
|
|
673
|
}
|
|
674
|
if (!is_ipaddrv6($ipv6) or !is_numeric($prefix) or ($prefix > 128) or ($prefix < 0)) {
|
|
675
|
return false;
|
|
676
|
}
|
|
677
|
}
|
|
678
|
return true;
|
|
679
|
}
|
|
680
|
|
|
681
|
function openvpn_add_dhcpopts(& $settings, & $conf) {
|
|
682
|
|
|
683
|
if (!empty($settings['dns_domain'])) {
|
|
684
|
$conf .= "push \"dhcp-option DOMAIN {$settings['dns_domain']}\"\n";
|
|
685
|
}
|
|
686
|
|
|
687
|
if (!empty($settings['dns_server1'])) {
|
|
688
|
$dnstype = (is_ipaddrv6($settings['dns_server1'])) ? "DNS6" : "DNS";
|
|
689
|
$conf .= "push \"dhcp-option {$dnstype} {$settings['dns_server1']}\"\n";
|
|
690
|
}
|
|
691
|
if (!empty($settings['dns_server2'])) {
|
|
692
|
$dnstype = (is_ipaddrv6($settings['dns_server2'])) ? "DNS6" : "DNS";
|
|
693
|
$conf .= "push \"dhcp-option {$dnstype} {$settings['dns_server2']}\"\n";
|
|
694
|
}
|
|
695
|
if (!empty($settings['dns_server3'])) {
|
|
696
|
$dnstype = (is_ipaddrv6($settings['dns_server3'])) ? "DNS6" : "DNS";
|
|
697
|
$conf .= "push \"dhcp-option {$dnstype} {$settings['dns_server3']}\"\n";
|
|
698
|
}
|
|
699
|
if (!empty($settings['dns_server4'])) {
|
|
700
|
$dnstype = (is_ipaddrv6($settings['dns_server4'])) ? "DNS6" : "DNS";
|
|
701
|
$conf .= "push \"dhcp-option {$dnstype} {$settings['dns_server4']}\"\n";
|
|
702
|
}
|
|
703
|
|
|
704
|
if (!empty($settings['push_blockoutsidedns'])) {
|
|
705
|
$conf .= "push \"block-outside-dns\"\n";
|
|
706
|
}
|
|
707
|
if (!empty($settings['push_register_dns'])) {
|
|
708
|
$conf .= "push \"register-dns\"\n";
|
|
709
|
}
|
|
710
|
|
|
711
|
if (!empty($settings['ntp_server1'])) {
|
|
712
|
$conf .= "push \"dhcp-option NTP {$settings['ntp_server1']}\"\n";
|
|
713
|
}
|
|
714
|
if (!empty($settings['ntp_server2'])) {
|
|
715
|
$conf .= "push \"dhcp-option NTP {$settings['ntp_server2']}\"\n";
|
|
716
|
}
|
|
717
|
|
|
718
|
if ($settings['netbios_enable']) {
|
|
719
|
|
|
720
|
if (!empty($settings['dhcp_nbttype']) && ($settings['dhcp_nbttype'] != 0)) {
|
|
721
|
$conf .= "push \"dhcp-option NBT {$settings['dhcp_nbttype']}\"\n";
|
|
722
|
}
|
|
723
|
if (!empty($settings['dhcp_nbtscope'])) {
|
|
724
|
$conf .= "push \"dhcp-option NBS {$settings['dhcp_nbtscope']}\"\n";
|
|
725
|
}
|
|
726
|
|
|
727
|
if (!empty($settings['wins_server1'])) {
|
|
728
|
$conf .= "push \"dhcp-option WINS {$settings['wins_server1']}\"\n";
|
|
729
|
}
|
|
730
|
if (!empty($settings['wins_server2'])) {
|
|
731
|
$conf .= "push \"dhcp-option WINS {$settings['wins_server2']}\"\n";
|
|
732
|
}
|
|
733
|
|
|
734
|
if (!empty($settings['nbdd_server1'])) {
|
|
735
|
$conf .= "push \"dhcp-option NBDD {$settings['nbdd_server1']}\"\n";
|
|
736
|
}
|
|
737
|
}
|
|
738
|
|
|
739
|
if ($settings['gwredir']) {
|
|
740
|
$conf .= "push \"redirect-gateway def1\"\n";
|
|
741
|
}
|
|
742
|
if ($settings['gwredir6']) {
|
|
743
|
$conf .= "push \"redirect-gateway ipv6\"\n";
|
|
744
|
}
|
|
745
|
}
|
|
746
|
|
|
747
|
function openvpn_add_custom(& $settings, & $conf) {
|
|
748
|
|
|
749
|
if ($settings['custom_options']) {
|
|
750
|
|
|
751
|
$options = explode(';', $settings['custom_options']);
|
|
752
|
|
|
753
|
if (is_array($options)) {
|
|
754
|
foreach ($options as $option) {
|
|
755
|
$conf .= "$option\n";
|
|
756
|
}
|
|
757
|
} else {
|
|
758
|
$conf .= "{$settings['custom_options']}\n";
|
|
759
|
}
|
|
760
|
}
|
|
761
|
}
|
|
762
|
|
|
763
|
function openvpn_add_keyfile(& $data, & $conf, $mode_id, $directive, $opt = "") {
|
|
764
|
global $g;
|
|
765
|
|
|
766
|
$fpath = "{$g['openvpn_base']}/{$mode_id}/{$directive}";
|
|
767
|
openvpn_create_dirs();
|
|
768
|
file_put_contents($fpath, base64_decode($data));
|
|
769
|
//chown($fpath, 'nobody');
|
|
770
|
//chgrp($fpath, 'nobody');
|
|
771
|
@chmod($fpath, 0600);
|
|
772
|
|
|
773
|
$conf .= "{$directive} {$fpath} {$opt}\n";
|
|
774
|
}
|
|
775
|
|
|
776
|
function openvpn_reconfigure($mode, $settings) {
|
|
777
|
global $g, $config, $openvpn_tls_server_modes, $openvpn_dh_lengths, $openvpn_default_keepalive_interval, $openvpn_default_keepalive_timeout;
|
|
778
|
|
|
779
|
if (empty($settings)) {
|
|
780
|
return;
|
|
781
|
}
|
|
782
|
if (isset($settings['disable'])) {
|
|
783
|
return;
|
|
784
|
}
|
|
785
|
openvpn_create_dirs();
|
|
786
|
/*
|
|
787
|
* NOTE: Deleting tap devices causes spontaneous reboots. Instead,
|
|
788
|
* we use a vpnid number which is allocated for a particular client
|
|
789
|
* or server configuration. ( see openvpn_vpnid_next() )
|
|
790
|
*/
|
|
791
|
|
|
792
|
$vpnid = $settings['vpnid'];
|
|
793
|
$mode_id = $mode.$vpnid;
|
|
794
|
|
|
795
|
if (isset($settings['dev_mode'])) {
|
|
796
|
$tunname = "{$settings['dev_mode']}{$vpnid}";
|
|
797
|
} else {
|
|
798
|
/* defaults to tun */
|
|
799
|
$tunname = "tun{$vpnid}";
|
|
800
|
$settings['dev_mode'] = "tun";
|
|
801
|
}
|
|
802
|
|
|
803
|
if ($mode == "server") {
|
|
804
|
$devname = "ovpns{$vpnid}";
|
|
805
|
} else {
|
|
806
|
$devname = "ovpnc{$vpnid}";
|
|
807
|
}
|
|
808
|
|
|
809
|
/* is our device already configured */
|
|
810
|
if (!does_interface_exist($devname)) {
|
|
811
|
|
|
812
|
/* create the tap device if required */
|
|
813
|
if (!file_exists("/dev/{$tunname}")) {
|
|
814
|
exec("/sbin/ifconfig " . escapeshellarg($tunname) . " create");
|
|
815
|
}
|
|
816
|
|
|
817
|
/* rename the device */
|
|
818
|
mwexec("/sbin/ifconfig " . escapeshellarg($tunname) . " name " . escapeshellarg($devname));
|
|
819
|
|
|
820
|
/* add the device to the openvpn group and make sure it's UP*/
|
|
821
|
mwexec("/sbin/ifconfig " . escapeshellarg($devname) . " group openvpn up");
|
|
822
|
|
|
823
|
$ifname = convert_real_interface_to_friendly_interface_name($devname);
|
|
824
|
$grouptmp = link_interface_to_group($ifname);
|
|
825
|
if (!empty($grouptmp)) {
|
|
826
|
array_walk($grouptmp, 'interface_group_add_member');
|
|
827
|
}
|
|
828
|
unset($grouptmp, $ifname);
|
|
829
|
}
|
|
830
|
|
|
831
|
$pfile = $g['varrun_path'] . "/openvpn_{$mode_id}.pid";
|
|
832
|
$proto = strtolower($settings['protocol']);
|
|
833
|
if (substr($settings['protocol'], 0, 3) == "TCP") {
|
|
834
|
$proto = "{$proto}-{$mode}";
|
|
835
|
}
|
|
836
|
$dev_mode = $settings['dev_mode'];
|
|
837
|
$fbcipher = $settings['data_ciphers_fallback'];
|
|
838
|
// OpenVPN defaults to SHA1, so use it when unset to maintain compatibility.
|
|
839
|
$digest = !empty($settings['digest']) ? $settings['digest'] : "SHA1";
|
|
840
|
|
|
841
|
$interface = get_failover_interface($settings['interface']);
|
|
842
|
// The IP address in the settings can be an IPv4 or IPv6 address associated with the interface
|
|
843
|
$ipaddr = $settings['ipaddr'];
|
|
844
|
|
|
845
|
// If a specific ip address (VIP) is requested, use it.
|
|
846
|
// Otherwise, if a specific interface is requested, use it
|
|
847
|
// If "any" interface was selected, local directive will be omitted.
|
|
848
|
if (is_ipaddrv4($ipaddr)) {
|
|
849
|
$iface_ip = $ipaddr;
|
|
850
|
} elseif (!empty($interface) && strcmp($interface, "any")) {
|
|
851
|
$iface_ip=get_interface_ip($interface);
|
|
852
|
}
|
|
853
|
if (is_ipaddrv6($ipaddr)) {
|
|
854
|
$iface_ipv6 = $ipaddr;
|
|
855
|
} elseif (!empty($interface) && strcmp($interface, "any")) {
|
|
856
|
$iface_ipv6=get_interface_ipv6($interface);
|
|
857
|
}
|
|
858
|
|
|
859
|
$conf = "dev {$devname}\n";
|
|
860
|
if (isset($settings['verbosity_level'])) {
|
|
861
|
$conf .= "verb {$settings['verbosity_level']}\n";
|
|
862
|
}
|
|
863
|
|
|
864
|
$conf .= "dev-type {$settings['dev_mode']}\n";
|
|
865
|
$conf .= "dev-node /dev/{$tunname}\n";
|
|
866
|
$conf .= "writepid {$pfile}\n";
|
|
867
|
$conf .= "#user nobody\n";
|
|
868
|
$conf .= "#group nobody\n";
|
|
869
|
$conf .= "script-security 3\n";
|
|
870
|
$conf .= "daemon\n";
|
|
871
|
|
|
872
|
if (!empty($settings['inactive_seconds'])) {
|
|
873
|
$conf .= "inactive {$settings['inactive_seconds']}\n";
|
|
874
|
}
|
|
875
|
|
|
876
|
if (!empty($settings['ping_method']) &&
|
|
877
|
$settings['ping_method'] == 'ping') {
|
|
878
|
$conf .= "ping {$settings['ping_seconds']}\n";
|
|
879
|
|
|
880
|
if (!empty($settings['ping_push'])) {
|
|
881
|
$conf .= "push \"ping {$settings['ping_seconds']}\"\n";
|
|
882
|
}
|
|
883
|
|
|
884
|
$action = str_replace("_", "-", $settings['ping_action']);
|
|
885
|
$conf .= "{$action} {$settings['ping_action_seconds']}\n";
|
|
886
|
|
|
887
|
if (!empty($settings['ping_action_push'])) {
|
|
888
|
$conf .= "push \"{$action} " .
|
|
889
|
"{$settings['ping_action_seconds']}\"\n";
|
|
890
|
}
|
|
891
|
} else {
|
|
892
|
$conf .= "keepalive " .
|
|
893
|
($settings['keepalive_interval']
|
|
894
|
?: $openvpn_default_keepalive_interval) . " " .
|
|
895
|
($settings['keepalive_timeout']
|
|
896
|
?: $openvpn_default_keepalive_timeout) . "\n";
|
|
897
|
}
|
|
898
|
|
|
899
|
$conf .= "ping-timer-rem\n";
|
|
900
|
$conf .= "persist-tun\n";
|
|
901
|
$conf .= "persist-key\n";
|
|
902
|
$conf .= "proto {$proto}\n";
|
|
903
|
$conf .= "auth {$digest}\n";
|
|
904
|
$conf .= "up /usr/local/sbin/ovpn-linkup\n";
|
|
905
|
$conf .= "down /usr/local/sbin/ovpn-linkdown\n";
|
|
906
|
if (file_exists("/usr/local/sbin/openvpn.attributes.sh")) {
|
|
907
|
switch ($settings['mode']) {
|
|
908
|
case 'server_user':
|
|
909
|
case 'server_tls_user':
|
|
910
|
$conf .= "client-connect /usr/local/sbin/openvpn.attributes.sh\n";
|
|
911
|
$conf .= "client-disconnect /usr/local/sbin/openvpn.attributes.sh\n";
|
|
912
|
break;
|
|
913
|
}
|
|
914
|
}
|
|
915
|
if ($settings['dev_mode'] === 'tun' && isset($config['unbound']['enable']) && isset($config['unbound']['regovpnclients'])) {
|
|
916
|
if (($settings['mode'] == 'server_tls') || ($settings['mode'] == 'server_tls_user') ||
|
|
917
|
(($settings['mode'] == 'server_user') && ($settings['username_as_common_name'] == 'enabled'))) {
|
|
918
|
$domain = !empty($settings['dns_domain']) ? $settings['dns_domain'] : $config['system']['domain'];
|
|
919
|
if (is_domain($domain)) {
|
|
920
|
$conf .= "learn-address \"/usr/local/sbin/openvpn.learn-address.sh $domain\"\n";
|
|
921
|
}
|
|
922
|
}
|
|
923
|
}
|
|
924
|
|
|
925
|
/*
|
|
926
|
* When binding specific address, wait cases where interface is in
|
|
927
|
* tentative state otherwise it will fail
|
|
928
|
*/
|
|
929
|
$wait_tentative = false;
|
|
930
|
|
|
931
|
/* Determine the local IP to use - and make sure it matches with the selected protocol. */
|
|
932
|
switch ($settings['protocol']) {
|
|
933
|
case 'UDP':
|
|
934
|
case 'TCP':
|
|
935
|
$conf .= "multihome\n";
|
|
936
|
break;
|
|
937
|
case 'UDP4':
|
|
938
|
case 'TCP4':
|
|
939
|
if (is_ipaddrv4($iface_ip)) {
|
|
940
|
$conf .= "local {$iface_ip}\n";
|
|
941
|
}
|
|
942
|
if ($settings['interface'] == "any") {
|
|
943
|
$conf .= "multihome\n";
|
|
944
|
}
|
|
945
|
break;
|
|
946
|
case 'UDP6':
|
|
947
|
case 'TCP6':
|
|
948
|
if (is_ipaddrv6($iface_ipv6)) {
|
|
949
|
$conf .= "local {$iface_ipv6}\n";
|
|
950
|
$wait_tentative = true;
|
|
951
|
}
|
|
952
|
if ($settings['interface'] == "any") {
|
|
953
|
$conf .= "multihome\n";
|
|
954
|
}
|
|
955
|
break;
|
|
956
|
default:
|
|
957
|
}
|
|
958
|
|
|
959
|
if (openvpn_validate_engine($settings['engine']) && ($settings['engine'] != "none")) {
|
|
960
|
$conf .= "engine {$settings['engine']}\n";
|
|
961
|
}
|
|
962
|
|
|
963
|
// server specific settings
|
|
964
|
if ($mode == 'server') {
|
|
965
|
|
|
966
|
list($ip, $cidr) = explode('/', trim($settings['tunnel_network']));
|
|
967
|
list($ipv6, $prefix) = explode('/', trim($settings['tunnel_networkv6']));
|
|
968
|
$mask = gen_subnet_mask($cidr);
|
|
969
|
|
|
970
|
// configure tls modes
|
|
971
|
switch ($settings['mode']) {
|
|
972
|
case 'p2p_tls':
|
|
973
|
case 'server_tls':
|
|
974
|
case 'server_user':
|
|
975
|
case 'server_tls_user':
|
|
976
|
$conf .= "tls-server\n";
|
|
977
|
break;
|
|
978
|
}
|
|
979
|
|
|
980
|
// configure p2p/server modes
|
|
981
|
switch ($settings['mode']) {
|
|
982
|
case 'p2p_tls':
|
|
983
|
// If the CIDR is less than a /30, OpenVPN will complain if you try to
|
|
984
|
// use the server directive. It works for a single client without it.
|
|
985
|
// See ticket #1417
|
|
986
|
if ((!empty($ip) && !empty($mask)) ||
|
|
987
|
(!empty($ipv6) && !empty($prefix))) {
|
|
988
|
$add_ccd = false;
|
|
989
|
if (is_ipaddr($ip) && ($cidr < 30)) {
|
|
990
|
$add_ccd = true;
|
|
991
|
$conf .= "server {$ip} {$mask}\n";
|
|
992
|
}
|
|
993
|
if (is_ipaddr($ipv6)) {
|
|
994
|
$add_ccd = true;
|
|
995
|
$conf .= "server-ipv6 {$ipv6}/{$prefix}\n";
|
|
996
|
}
|
|
997
|
if ($add_ccd) {
|
|
998
|
$conf .= "client-config-dir {$g['openvpn_base']}/server{$vpnid}/csc\n";
|
|
999
|
}
|
|
1000
|
}
|
|
1001
|
case 'p2p_shared_key':
|
|
1002
|
if (!empty($ip) && !empty($mask)) {
|
|
1003
|
list($ip1, $ip2) = openvpn_get_interface_ip($ip, $cidr);
|
|
1004
|
if ($settings['dev_mode'] == 'tun') {
|
|
1005
|
$conf .= "ifconfig {$ip1} {$ip2}\n";
|
|
1006
|
} else {
|
|
1007
|
$conf .= "ifconfig {$ip1} {$mask}\n";
|
|
1008
|
}
|
|
1009
|
}
|
|
1010
|
if (!empty($ipv6) && !empty($prefix)) {
|
|
1011
|
list($ipv6_1, $ipv6_2) = openvpn_get_interface_ipv6($ipv6, $prefix);
|
|
1012
|
if ($settings['dev_mode'] == 'tun') {
|
|
1013
|
$conf .= "ifconfig-ipv6 {$ipv6_1} {$ipv6_2}\n";
|
|
1014
|
} else {
|
|
1015
|
$conf .= "ifconfig-ipv6 {$ipv6_1} {$prefix}\n";
|
|
1016
|
}
|
|
1017
|
}
|
|
1018
|
break;
|
|
1019
|
case 'server_tls':
|
|
1020
|
case 'server_user':
|
|
1021
|
case 'server_tls_user':
|
|
1022
|
if ((!empty($ip) && !empty($mask)) ||
|
|
1023
|
(!empty($ipv6) && !empty($prefix))) {
|
|
1024
|
if (is_ipaddr($ip)) {
|
|
1025
|
$conf .= "server {$ip} {$mask}\n";
|
|
1026
|
}
|
|
1027
|
if (is_ipaddr($ipv6)) {
|
|
1028
|
$conf .= "server-ipv6 {$ipv6}/{$prefix}\n";
|
|
1029
|
}
|
|
1030
|
$conf .= "client-config-dir {$g['openvpn_base']}/server{$vpnid}/csc\n";
|
|
1031
|
} else {
|
|
1032
|
if ($settings['serverbridge_dhcp']) {
|
|
1033
|
if ((!empty($settings['serverbridge_interface'])) && (strcmp($settings['serverbridge_interface'], "none"))) {
|
|
1034
|
$biface_ip=get_interface_ip($settings['serverbridge_interface']);
|
|
1035
|
$biface_sm=gen_subnet_mask(get_interface_subnet($settings['serverbridge_interface']));
|
|
1036
|
if (is_ipaddrv4($biface_ip) && is_ipaddrv4($settings['serverbridge_dhcp_start']) && is_ipaddrv4($settings['serverbridge_dhcp_end'])) {
|
|
1037
|
$conf .= "server-bridge {$biface_ip} {$biface_sm} {$settings['serverbridge_dhcp_start']} {$settings['serverbridge_dhcp_end']}\n";
|
|
1038
|
$conf .= "client-config-dir {$g['openvpn_base']}/server{$vpnid}/csc\n";
|
|
1039
|
} else {
|
|
1040
|
$conf .= "mode server\n";
|
|
1041
|
}
|
|
1042
|
if (!empty($settings['serverbridge_routegateway']) && is_ipaddrv4($biface_ip)) {
|
|
1043
|
$conf .= "push \"route-gateway {$biface_ip}\"\n";
|
|
1044
|
}
|
|
1045
|
/* OpenVPN doesn't support this yet, clients do not recognize the option fully.
|
|
1046
|
$biface_ip6=get_interface_ipv6($settings['serverbridge_interface']);
|
|
1047
|
if (!empty($settings['serverbridge_routegateway']) && is_ipaddrv6($biface_ip6)) {
|
|
1048
|
$conf .= "push \"route-ipv6-gateway {$biface_ip6}\"\n";
|
|
1049
|
}
|
|
1050
|
*/
|
|
1051
|
} else {
|
|
1052
|
$conf .= "mode server\n";
|
|
1053
|
}
|
|
1054
|
}
|
|
1055
|
}
|
|
1056
|
break;
|
|
1057
|
}
|
|
1058
|
|
|
1059
|
// configure user auth modes
|
|
1060
|
switch ($settings['mode']) {
|
|
1061
|
case 'server_user':
|
|
1062
|
$conf .= "verify-client-cert none\n";
|
|
1063
|
case 'server_tls_user':
|
|
1064
|
/* username-as-common-name is not compatible with server-bridge */
|
|
1065
|
if ((stristr($conf, "server-bridge") === false) &&
|
|
1066
|
($settings['username_as_common_name'] != 'disabled')) {
|
|
1067
|
$conf .= "username-as-common-name\n";
|
|
1068
|
}
|
|
1069
|
if (!empty($settings['authmode'])) {
|
|
1070
|
$strictusercn = "false";
|
|
1071
|
if ($settings['strictusercn']) {
|
|
1072
|
$strictusercn = "true";
|
|
1073
|
}
|
|
1074
|
$conf .= "plugin /usr/local/lib/openvpn/plugins/openvpn-plugin-auth-script.so /usr/local/sbin/ovpn_auth_verify_async user " . base64_encode($settings['authmode']) . " {$strictusercn} {$mode_id} {$settings['local_port']}\n";
|
|
1075
|
}
|
|
1076
|
break;
|
|
1077
|
}
|
|
1078
|
if (!isset($settings['cert_depth']) && (strstr($settings['mode'], 'tls'))) {
|
|
1079
|
$settings['cert_depth'] = 1;
|
|
1080
|
}
|
|
1081
|
if (is_numeric($settings['cert_depth'])) {
|
|
1082
|
if (($mode == 'client') && empty($settings['certref'])) {
|
|
1083
|
$cert = "";
|
|
1084
|
} else {
|
|
1085
|
$cert = lookup_cert($settings['certref']);
|
|
1086
|
/* XXX: Seems not used at all! */
|
|
1087
|
$servercn = urlencode(cert_get_cn($cert['crt']));
|
|
1088
|
$conf .= "tls-verify \"/usr/local/sbin/ovpn_auth_verify tls '{$servercn}' {$settings['cert_depth']}\"\n";
|
|
1089
|
}
|
|
1090
|
}
|
|
1091
|
|
|
1092
|
// The local port to listen on
|
|
1093
|
$conf .= "lport {$settings['local_port']}\n";
|
|
1094
|
|
|
1095
|
// The management port to listen on
|
|
1096
|
// Use unix socket to overcome the problem on any type of server
|
|
1097
|
$conf .= "management {$g['openvpn_base']}/{$mode_id}/sock unix\n";
|
|
1098
|
//$conf .= "management 127.0.0.1 {$settings['local_port']}\n";
|
|
1099
|
|
|
1100
|
if ($settings['maxclients']) {
|
|
1101
|
$conf .= "max-clients {$settings['maxclients']}\n";
|
|
1102
|
}
|
|
1103
|
|
|
1104
|
// Can we push routes, and should we?
|
|
1105
|
if ($settings['local_network'] && !$settings['gwredir']) {
|
|
1106
|
$conf .= openvpn_gen_routes($settings['local_network'], "ipv4", true);
|
|
1107
|
}
|
|
1108
|
if ($settings['local_networkv6'] && !$settings['gwredir6']) {
|
|
1109
|
$conf .= openvpn_gen_routes($settings['local_networkv6'], "ipv6", true);
|
|
1110
|
}
|
|
1111
|
|
|
1112
|
switch ($settings['mode']) {
|
|
1113
|
case 'server_tls':
|
|
1114
|
case 'server_user':
|
|
1115
|
case 'server_tls_user':
|
|
1116
|
// Configure client dhcp options
|
|
1117
|
openvpn_add_dhcpopts($settings, $conf);
|
|
1118
|
if ($settings['client2client']) {
|
|
1119
|
$conf .= "client-to-client\n";
|
|
1120
|
}
|
|
1121
|
break;
|
|
1122
|
}
|
|
1123
|
if ($settings['mode'] != 'p2p_shared_key' &&
|
|
1124
|
isset($settings['duplicate_cn'])) {
|
|
1125
|
$conf .= "duplicate-cn\n";
|
|
1126
|
}
|
|
1127
|
}
|
|
1128
|
|
|
1129
|
// client specific settings
|
|
1130
|
|
|
1131
|
if ($mode == 'client') {
|
|
1132
|
|
|
1133
|
// configure p2p mode
|
|
1134
|
switch ($settings['mode']) {
|
|
1135
|
case 'p2p_tls':
|
|
1136
|
$conf .= "tls-client\n";
|
|
1137
|
case 'shared_key':
|
|
1138
|
$conf .= "client\n";
|
|
1139
|
break;
|
|
1140
|
}
|
|
1141
|
|
|
1142
|
// If there is no bind option at all (ip and/or port), add "nobind" directive
|
|
1143
|
// Otherwise, use the local port if defined, failing that, use lport 0 to
|
|
1144
|
// ensure a random source port.
|
|
1145
|
if ((empty($iface_ip)) && empty($iface_ipv6) && (!$settings['local_port'])) {
|
|
1146
|
$conf .= "nobind\n";
|
|
1147
|
} elseif ($settings['local_port']) {
|
|
1148
|
$conf .= "lport {$settings['local_port']}\n";
|
|
1149
|
} else {
|
|
1150
|
$conf .= "lport 0\n";
|
|
1151
|
}
|
|
1152
|
|
|
1153
|
// Use unix socket to overcome the problem on any type of server
|
|
1154
|
$conf .= "management {$g['openvpn_base']}/{$mode_id}/sock unix\n";
|
|
1155
|
|
|
1156
|
// The remote server
|
|
1157
|
$remoteproto = strtolower($settings['protocol']);
|
|
1158
|
if (substr($remoteproto, 0, 3) == "tcp") {
|
|
1159
|
$remoteproto .= "-{$mode}";
|
|
1160
|
}
|
|
1161
|
$conf .= "remote {$settings['server_addr']} {$settings['server_port']} {$remoteproto}\n";
|
|
1162
|
|
|
1163
|
if (!empty($settings['use_shaper'])) {
|
|
1164
|
$conf .= "shaper {$settings['use_shaper']}\n";
|
|
1165
|
}
|
|
1166
|
|
|
1167
|
if (!empty($settings['tunnel_network'])) {
|
|
1168
|
list($ip, $cidr) = explode('/', trim($settings['tunnel_network']));
|
|
1169
|
$mask = gen_subnet_mask($cidr);
|
|
1170
|
list($ip1, $ip2) = openvpn_get_interface_ip($ip, $cidr);
|
|
1171
|
if ($settings['dev_mode'] == 'tun') {
|
|
1172
|
$conf .= "ifconfig {$ip2} {$ip1}\n";
|
|
1173
|
} else {
|
|
1174
|
$conf .= "ifconfig {$ip2} {$mask}\n";
|
|
1175
|
}
|
|
1176
|
}
|
|
1177
|
|
|
1178
|
if (!empty($settings['tunnel_networkv6'])) {
|
|
1179
|
list($ipv6, $prefix) = explode('/', trim($settings['tunnel_networkv6']));
|
|
1180
|
list($ipv6_1, $ipv6_2) = openvpn_get_interface_ipv6($ipv6, $prefix);
|
|
1181
|
if ($settings['dev_mode'] == 'tun') {
|
|
1182
|
$conf .= "ifconfig-ipv6 {$ipv6_2} {$ipv6_1}\n";
|
|
1183
|
} else {
|
|
1184
|
$conf .= "ifconfig-ipv6 {$ipv6_2} {$prefix}\n";
|
|
1185
|
}
|
|
1186
|
}
|
|
1187
|
|
|
1188
|
if (($settings['auth_user'] || $settings['auth_pass']) && $settings['mode'] == "p2p_tls") {
|
|
1189
|
$up_file = "{$g['openvpn_base']}/{$mode_id}/up";
|
|
1190
|
$conf .= "auth-user-pass {$up_file}\n";
|
|
1191
|
if (!$settings['auth-retry-none']) {
|
|
1192
|
$conf .= "auth-retry nointeract\n";
|
|
1193
|
}
|
|
1194
|
if ($settings['auth_user']) {
|
|
1195
|
$userpass = "{$settings['auth_user']}\n";
|
|
1196
|
} else {
|
|
1197
|
$userpass = "";
|
|
1198
|
}
|
|
1199
|
if ($settings['auth_pass']) {
|
|
1200
|
$userpass .= "{$settings['auth_pass']}\n";
|
|
1201
|
}
|
|
1202
|
// If only auth_pass is given, then it acts like a user name and we put a blank line where pass would normally go.
|
|
1203
|
if (!($settings['auth_user'] && $settings['auth_pass'])) {
|
|
1204
|
$userpass .= "\n";
|
|
1205
|
}
|
|
1206
|
file_put_contents($up_file, $userpass);
|
|
1207
|
}
|
|
1208
|
|
|
1209
|
if ($settings['proxy_addr']) {
|
|
1210
|
$conf .= "http-proxy {$settings['proxy_addr']} {$settings['proxy_port']}";
|
|
1211
|
if ($settings['proxy_authtype'] != "none") {
|
|
1212
|
$conf .= " {$g['openvpn_base']}/{$mode_id}/proxy_auth {$settings['proxy_authtype']}";
|
|
1213
|
$proxypas = "{$settings['proxy_user']}\n";
|
|
1214
|
$proxypas .= "{$settings['proxy_passwd']}\n";
|
|
1215
|
file_put_contents("{$g['openvpn_base']}/{$mode_id}/proxy_auth", $proxypas);
|
|
1216
|
}
|
|
1217
|
$conf .= " \n";
|
|
1218
|
}
|
|
1219
|
}
|
|
1220
|
|
|
1221
|
// Add a remote network route if set, and only for p2p modes.
|
|
1222
|
if ((substr($settings['mode'], 0, 3) == "p2p") && (openvpn_validate_cidr($settings['remote_network'], "", true, "ipv4") === FALSE)) {
|
|
1223
|
$conf .= openvpn_gen_routes($settings['remote_network'], "ipv4", false);
|
|
1224
|
}
|
|
1225
|
// Add a remote network route if set, and only for p2p modes.
|
|
1226
|
if ((substr($settings['mode'], 0, 3) == "p2p") && (openvpn_validate_cidr($settings['remote_networkv6'], "", true, "ipv6") === FALSE)) {
|
|
1227
|
$conf .= openvpn_gen_routes($settings['remote_networkv6'], "ipv6", false);
|
|
1228
|
}
|
|
1229
|
|
|
1230
|
// Write the settings for the keys
|
|
1231
|
switch ($settings['mode']) {
|
|
1232
|
case 'p2p_shared_key':
|
|
1233
|
openvpn_add_keyfile($settings['shared_key'], $conf, $mode_id, "secret");
|
|
1234
|
break;
|
|
1235
|
case 'p2p_tls':
|
|
1236
|
case 'server_tls':
|
|
1237
|
case 'server_tls_user':
|
|
1238
|
case 'server_user':
|
|
1239
|
// ca_chain_array() expects parameter to be passed by reference.
|
|
1240
|
// avoid passing the whole settings array, as param names or
|
|
1241
|
// types might change in future releases.
|
|
1242
|
$param = array('caref' => $settings['caref']);
|
|
1243
|
$cas = ca_chain_array($param);
|
|
1244
|
$capath = "{$g['openvpn_base']}/{$mode_id}/ca";
|
|
1245
|
/* Cleanup old CA/CRL references */
|
|
1246
|
@unlink_if_exists("{$capath}.*0");
|
|
1247
|
/* Find the CRL listed in the settings */
|
|
1248
|
if (!empty($settings['crlref'])) {
|
|
1249
|
$crl = lookup_crl($settings['crlref']);
|
|
1250
|
crl_update($crl);
|
|
1251
|
}
|
|
1252
|
/* For each CA in the chain, setup the CApath */
|
|
1253
|
foreach ($cas as $ca) {
|
|
1254
|
ca_setup_capath($ca, $capath, $crl);
|
|
1255
|
}
|
|
1256
|
$conf .= "capath {$capath}\n";
|
|
1257
|
unset($cas, $param);
|
|
1258
|
|
|
1259
|
if (!empty($settings['certref'])) {
|
|
1260
|
$cert = lookup_cert($settings['certref']);
|
|
1261
|
openvpn_add_keyfile($cert['crt'], $conf, $mode_id, "cert");
|
|
1262
|
openvpn_add_keyfile($cert['prv'], $conf, $mode_id, "key");
|
|
1263
|
}
|
|
1264
|
if ($mode == 'server') {
|
|
1265
|
if (is_numeric($settings['dh_length'])) {
|
|
1266
|
if (!in_array($settings['dh_length'], array_keys($openvpn_dh_lengths))) {
|
|
1267
|
/* The user selected a DH parameter length that does not have a corresponding file. */
|
|
1268
|
log_error(gettext("Failed to construct OpenVPN server configuration. The selected DH Parameter length cannot be used."));
|
|
1269
|
return;
|
|
1270
|
}
|
|
1271
|
$dh_file = "{$g['etc_path']}/dh-parameters.{$settings['dh_length']}";
|
|
1272
|
} else {
|
|
1273
|
$dh_file = $settings['dh_length'];
|
|
1274
|
}
|
|
1275
|
$conf .= "dh {$dh_file}\n";
|
|
1276
|
if (!empty($settings['ecdh_curve']) && ($settings['ecdh_curve'] != "none") && openvpn_validate_curve($settings['ecdh_curve'])) {
|
|
1277
|
$conf .= "ecdh-curve {$settings['ecdh_curve']}\n";
|
|
1278
|
}
|
|
1279
|
}
|
|
1280
|
if ($settings['tls']) {
|
|
1281
|
if ($settings['tls_type'] == "crypt") {
|
|
1282
|
$tls_directive = "tls-crypt";
|
|
1283
|
$tlsopt = "";
|
|
1284
|
} else {
|
|
1285
|
$tls_directive = "tls-auth";
|
|
1286
|
if ($mode == "server") {
|
|
1287
|
switch($settings['tlsauth_keydir']){
|
|
1288
|
case '1':
|
|
1289
|
$tlsopt = 1;
|
|
1290
|
break;
|
|
1291
|
case '2':
|
|
1292
|
$tlsopt = '';
|
|
1293
|
break;
|
|
1294
|
default:
|
|
1295
|
$tlsopt = 0;
|
|
1296
|
break;
|
|
1297
|
}
|
|
1298
|
} else {
|
|
1299
|
switch($settings['tlsauth_keydir']){
|
|
1300
|
case '0':
|
|
1301
|
$tlsopt = 0;
|
|
1302
|
break;
|
|
1303
|
case '2':
|
|
1304
|
$tlsopt = '';
|
|
1305
|
break;
|
|
1306
|
default:
|
|
1307
|
$tlsopt = 1;
|
|
1308
|
break;
|
|
1309
|
}
|
|
1310
|
}
|
|
1311
|
}
|
|
1312
|
openvpn_add_keyfile($settings['tls'], $conf, $mode_id, $tls_directive, $tlsopt);
|
|
1313
|
}
|
|
1314
|
break;
|
|
1315
|
}
|
|
1316
|
|
|
1317
|
/* Data encryption cipher support.
|
|
1318
|
* If it is not set, assume enabled since that is OpenVPN's default.
|
|
1319
|
* Note that diabling this is now deprecated and will be removed in a future version of OpenVPN */
|
|
1320
|
if ($settings['ncp_enable'] == "disabled") {
|
|
1321
|
$conf .= "ncp-disable\n";
|
|
1322
|
$conf .= "cipher {$fbcipher}\n";
|
|
1323
|
} else {
|
|
1324
|
$conf .= "data-ciphers " . str_replace(',', ':', openvpn_build_data_cipher_list($settings['data_ciphers'], $fbcipher)) . "\n";
|
|
1325
|
$conf .= "data-ciphers-fallback {$fbcipher}\n";
|
|
1326
|
}
|
|
1327
|
|
|
1328
|
if (!empty($settings['allow_compression'])) {
|
|
1329
|
$conf .= "allow-compression {$settings['allow_compression']}\n";
|
|
1330
|
}
|
|
1331
|
|
|
1332
|
$compression = "";
|
|
1333
|
switch ($settings['compression']) {
|
|
1334
|
case 'none':
|
|
1335
|
$settings['compression'] = '';
|
|
1336
|
case 'lz4':
|
|
1337
|
case 'lz4-v2':
|
|
1338
|
case 'lzo':
|
|
1339
|
case 'stub':
|
|
1340
|
case 'stub-v2':
|
|
1341
|
$compression .= "compress {$settings['compression']}";
|
|
1342
|
break;
|
|
1343
|
case 'noadapt':
|
|
1344
|
$compression .= "comp-noadapt";
|
|
1345
|
break;
|
|
1346
|
case 'adaptive':
|
|
1347
|
case 'yes':
|
|
1348
|
case 'no':
|
|
1349
|
$compression .= "comp-lzo {$settings['compression']}";
|
|
1350
|
break;
|
|
1351
|
default:
|
|
1352
|
/* Add nothing to the configuration */
|
|
1353
|
break;
|
|
1354
|
}
|
|
1355
|
|
|
1356
|
if (($settings['allow_compression'] != 'no') &&
|
|
1357
|
!empty($compression)) {
|
|
1358
|
$conf .= "{$compression}\n";
|
|
1359
|
if ($settings['compression_push']) {
|
|
1360
|
$conf .= "push \"{$compression}\"\n";
|
|
1361
|
}
|
|
1362
|
}
|
|
1363
|
|
|
1364
|
if ($settings['passtos']) {
|
|
1365
|
$conf .= "passtos\n";
|
|
1366
|
}
|
|
1367
|
|
|
1368
|
if ($mode == 'client') {
|
|
1369
|
$conf .= "resolv-retry infinite\n";
|
|
1370
|
}
|
|
1371
|
|
|
1372
|
if ($settings['dynamic_ip']) {
|
|
1373
|
$conf .= "persist-remote-ip\n";
|
|
1374
|
$conf .= "float\n";
|
|
1375
|
}
|
|
1376
|
|
|
1377
|
// If the server is not a TLS server or it has a tunnel network CIDR less than a /30, skip this.
|
|
1378
|
if (in_array($settings['mode'], $openvpn_tls_server_modes) && (!empty($ip) && !empty($mask) && ($cidr < 30)) && $settings['dev_mode'] != "tap") {
|
|
1379
|
if (empty($settings['topology'])) {
|
|
1380
|
$settings['topology'] = "subnet";
|
|
1381
|
}
|
|
1382
|
$conf .= "topology {$settings['topology']}\n";
|
|
1383
|
}
|
|
1384
|
|
|
1385
|
// New client features
|
|
1386
|
if ($mode == "client") {
|
|
1387
|
// Dont pull routes checkbox
|
|
1388
|
if ($settings['route_no_pull']) {
|
|
1389
|
$conf .= "route-nopull\n";
|
|
1390
|
}
|
|
1391
|
|
|
1392
|
// Dont add/remove routes checkbox
|
|
1393
|
if ($settings['route_no_exec']) {
|
|
1394
|
$conf .= "route-noexec\n";
|
|
1395
|
}
|
|
1396
|
}
|
|
1397
|
|
|
1398
|
/* UDP Fast I/O. Only compatible with UDP and also not compatible with OpenVPN's "shaper" directive. */
|
|
1399
|
if ($settings['udp_fast_io']
|
|
1400
|
&& (strtolower(substr($settings['protocol'], 0, 3)) == "udp")
|
|
1401
|
&& (empty($settings['use_shaper']))) {
|
|
1402
|
$conf .= "fast-io\n";
|
|
1403
|
}
|
|
1404
|
|
|
1405
|
/* Exit Notify. Only compatible with UDP. */
|
|
1406
|
if (!empty($settings['exit_notify']) &&
|
|
1407
|
is_numericint($settings['exit_notify']) &&
|
|
1408
|
(strtolower(substr($settings['protocol'], 0, 3)) == "udp")) {
|
|
1409
|
$conf .= "explicit-exit-notify {$settings['exit_notify']}\n";
|
|
1410
|
}
|
|
1411
|
|
|
1412
|
/* Send and Receive Buffer Settings */
|
|
1413
|
if (is_numericint($settings['sndrcvbuf'])
|
|
1414
|
&& ($settings['sndrcvbuf'] > 0)
|
|
1415
|
&& ($settings['sndrcvbuf'] <= get_single_sysctl('net.inet.tcp.sendbuf_max'))
|
|
1416
|
&& ($settings['sndrcvbuf'] <= get_single_sysctl('net.inet.tcp.recvbuf_max'))) {
|
|
1417
|
$conf .= "sndbuf {$settings['sndrcvbuf']}\n";
|
|
1418
|
$conf .= "rcvbuf {$settings['sndrcvbuf']}\n";
|
|
1419
|
}
|
|
1420
|
|
|
1421
|
openvpn_add_custom($settings, $conf);
|
|
1422
|
|
|
1423
|
openvpn_create_dirs();
|
|
1424
|
$fpath = "{$g['openvpn_base']}/{$mode_id}/config.ovpn";
|
|
1425
|
file_put_contents($fpath, $conf);
|
|
1426
|
unset($conf);
|
|
1427
|
$fpath = "{$g['openvpn_base']}/{$mode_id}/interface";
|
|
1428
|
file_put_contents($fpath, $interface);
|
|
1429
|
//chown($fpath, 'nobody');
|
|
1430
|
//chgrp($fpath, 'nobody');
|
|
1431
|
@chmod("{$g['openvpn_base']}/{$mode_id}/config.ovpn", 0600);
|
|
1432
|
@chmod("{$g['openvpn_base']}/{$mode_id}/interface", 0600);
|
|
1433
|
@chmod("{$g['openvpn_base']}/{$mode_id}/key", 0600);
|
|
1434
|
@chmod("{$g['openvpn_base']}/{$mode_id}/tls-auth", 0600);
|
|
1435
|
@chmod("{$g['openvpn_base']}/{$mode_id}/conf", 0600);
|
|
1436
|
|
|
1437
|
if ($wait_tentative) {
|
|
1438
|
interface_wait_tentative($interface);
|
|
1439
|
}
|
|
1440
|
}
|
|
1441
|
|
|
1442
|
function openvpn_restart($mode, $settings) {
|
|
1443
|
global $g, $config;
|
|
1444
|
|
|
1445
|
$vpnid = $settings['vpnid'];
|
|
1446
|
$mode_id = $mode.$vpnid;
|
|
1447
|
$lockhandle = lock("openvpnservice{$mode_id}", LOCK_EX);
|
|
1448
|
openvpn_reconfigure($mode, $settings);
|
|
1449
|
/* kill the process if running */
|
|
1450
|
$pfile = $g['varrun_path']."/openvpn_{$mode_id}.pid";
|
|
1451
|
if (file_exists($pfile)) {
|
|
1452
|
|
|
1453
|
/* read the pid file */
|
|
1454
|
$pid = rtrim(file_get_contents($pfile));
|
|
1455
|
unlink($pfile);
|
|
1456
|
syslog(LOG_INFO, "OpenVPN terminate old pid: {$pid}");
|
|
1457
|
|
|
1458
|
/* send a term signal to the process */
|
|
1459
|
posix_kill($pid, SIGTERM);
|
|
1460
|
|
|
1461
|
/* wait until the process exits, or timeout and kill it */
|
|
1462
|
$i = 0;
|
|
1463
|
while (posix_kill($pid, 0)) {
|
|
1464
|
usleep(250000);
|
|
1465
|
if ($i > 10) {
|
|
1466
|
log_error(sprintf(gettext('OpenVPN ID %1$s PID %2$s still running, killing.'), $mode_id, $pid));
|
|
1467
|
posix_kill($pid, SIGKILL);
|
|
1468
|
usleep(500000);
|
|
1469
|
}
|
|
1470
|
$i++;
|
|
1471
|
}
|
|
1472
|
}
|
|
1473
|
|
|
1474
|
if (isset($settings['disable'])) {
|
|
1475
|
unlock($lockhandle);
|
|
1476
|
return;
|
|
1477
|
}
|
|
1478
|
|
|
1479
|
/* Do not start an instance if we are not CARP master on this vip! */
|
|
1480
|
if (strstr($settings['interface'], "_vip") && !in_array(get_carp_interface_status($settings['interface']), array("MASTER", ""))) {
|
|
1481
|
unlock($lockhandle);
|
|
1482
|
return;
|
|
1483
|
}
|
|
1484
|
|
|
1485
|
/* Check if client is bound to a gateway group */
|
|
1486
|
$a_groups = return_gateway_groups_array(true);
|
|
1487
|
if (is_array($a_groups[$settings['interface']])) {
|
|
1488
|
/* the interface is a gateway group. If a vip is defined and its a CARP backup then do not start */
|
|
1489
|
if (($a_groups[$settings['interface']][0]['vip'] <> "") && (!in_array(get_carp_interface_status($a_groups[$settings['interface']][0]['vip']), array("MASTER", "")))) {
|
|
1490
|
unlock($lockhandle);
|
|
1491
|
return;
|
|
1492
|
}
|
|
1493
|
}
|
|
1494
|
|
|
1495
|
/* start the new process */
|
|
1496
|
$fpath = "{$g['openvpn_base']}/{$mode_id}/config.ovpn";
|
|
1497
|
openvpn_clear_route($mode, $settings);
|
|
1498
|
$res = mwexec("/usr/local/sbin/openvpn --config " . escapeshellarg($fpath));
|
|
1499
|
if ($res == 0) {
|
|
1500
|
$i = 0;
|
|
1501
|
$pid = "--";
|
|
1502
|
while ($i < 3000) {
|
|
1503
|
if (isvalidpid($pfile)) {
|
|
1504
|
$pid = rtrim(file_get_contents($pfile));
|
|
1505
|
break;
|
|
1506
|
}
|
|
1507
|
usleep(1000);
|
|
1508
|
$i++;
|
|
1509
|
}
|
|
1510
|
syslog(LOG_INFO, "OpenVPN PID written: {$pid}");
|
|
1511
|
} else {
|
|
1512
|
syslog(LOG_ERR, "OpenVPN failed to start");
|
|
1513
|
}
|
|
1514
|
if (!platform_booting()) {
|
|
1515
|
send_event("filter reload");
|
|
1516
|
}
|
|
1517
|
unlock($lockhandle);
|
|
1518
|
}
|
|
1519
|
|
|
1520
|
function openvpn_delete($mode, $settings) {
|
|
1521
|
global $g, $config;
|
|
1522
|
|
|
1523
|
$vpnid = $settings['vpnid'];
|
|
1524
|
$mode_id = $mode.$vpnid;
|
|
1525
|
|
|
1526
|
if ($mode == "server") {
|
|
1527
|
$devname = "ovpns{$vpnid}";
|
|
1528
|
} else {
|
|
1529
|
$devname = "ovpnc{$vpnid}";
|
|
1530
|
}
|
|
1531
|
|
|
1532
|
/* kill the process if running */
|
|
1533
|
$pfile = "{$g['varrun_path']}/openvpn_{$mode_id}.pid";
|
|
1534
|
if (file_exists($pfile)) {
|
|
1535
|
|
|
1536
|
/* read the pid file */
|
|
1537
|
$pid = trim(file_get_contents($pfile));
|
|
1538
|
unlink($pfile);
|
|
1539
|
|
|
1540
|
/* send a term signal to the process */
|
|
1541
|
posix_kill($pid, SIGTERM);
|
|
1542
|
}
|
|
1543
|
|
|
1544
|
/* destroy the device */
|
|
1545
|
pfSense_interface_destroy($devname);
|
|
1546
|
|
|
1547
|
/* Invalidate cache */
|
|
1548
|
get_interface_arr(true);
|
|
1549
|
|
|
1550
|
/* remove the configuration files */
|
|
1551
|
unlink_if_exists("{$g['openvpn_base']}/{$mode_id}/*/*");
|
|
1552
|
unlink_if_exists("{$g['openvpn_base']}/{$mode_id}/*");
|
|
1553
|
}
|
|
1554
|
|
|
1555
|
function openvpn_resync_csc(& $settings) {
|
|
1556
|
global $g, $config, $openvpn_tls_server_modes;
|
|
1557
|
if (isset($settings['disable'])) {
|
|
1558
|
openvpn_delete_csc($settings);
|
|
1559
|
return;
|
|
1560
|
}
|
|
1561
|
openvpn_create_dirs();
|
|
1562
|
|
|
1563
|
if (empty($settings['server_list'])) {
|
|
1564
|
$csc_server_list = array();
|
|
1565
|
} else {
|
|
1566
|
$csc_server_list = explode(",", $settings['server_list']);
|
|
1567
|
}
|
|
1568
|
|
|
1569
|
$conf = '';
|
|
1570
|
if ($settings['block']) {
|
|
1571
|
$conf .= "disable\n";
|
|
1572
|
}
|
|
1573
|
|
|
1574
|
if ($settings['push_reset']) {
|
|
1575
|
$conf .= "push-reset\n";
|
|
1576
|
}
|
|
1577
|
|
|
1578
|
if ($settings['remove_route']) {
|
|
1579
|
$conf .= "push-remove route\n";
|
|
1580
|
}
|
|
1581
|
|
|
1582
|
if ($settings['local_network']) {
|
|
1583
|
$conf .= openvpn_gen_routes($settings['local_network'], "ipv4", true);
|
|
1584
|
}
|
|
1585
|
if ($settings['local_networkv6']) {
|
|
1586
|
$conf .= openvpn_gen_routes($settings['local_networkv6'], "ipv6", true);
|
|
1587
|
}
|
|
1588
|
|
|
1589
|
// Add a remote network iroute if set
|
|
1590
|
if (openvpn_validate_cidr($settings['remote_network'], "", true, "ipv4") === FALSE) {
|
|
1591
|
$conf .= openvpn_gen_routes($settings['remote_network'], "ipv4", false, true);
|
|
1592
|
}
|
|
1593
|
// Add a remote network iroute if set
|
|
1594
|
if (openvpn_validate_cidr($settings['remote_networkv6'], "", true, "ipv6") === FALSE) {
|
|
1595
|
$conf .= openvpn_gen_routes($settings['remote_networkv6'], "ipv6", false, true);
|
|
1596
|
}
|
|
1597
|
|
|
1598
|
openvpn_add_dhcpopts($settings, $conf);
|
|
1599
|
|
|
1600
|
openvpn_add_custom($settings, $conf);
|
|
1601
|
/* Loop through servers, find which ones can use this CSC */
|
|
1602
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
1603
|
foreach ($config['openvpn']['openvpn-server'] as $serversettings) {
|
|
1604
|
if (isset($serversettings['disable'])) {
|
|
1605
|
continue;
|
|
1606
|
}
|
|
1607
|
if (in_array($serversettings['mode'], $openvpn_tls_server_modes)) {
|
|
1608
|
if ($serversettings['vpnid'] && (empty($csc_server_list) || in_array($serversettings['vpnid'], $csc_server_list))) {
|
|
1609
|
$csc_path = "{$g['openvpn_base']}/server{$serversettings['vpnid']}/csc/" . basename($settings['common_name']);
|
|
1610
|
$csc_conf = $conf;
|
|
1611
|
|
|
1612
|
if (!empty($serversettings['tunnel_network']) && !empty($settings['tunnel_network'])) {
|
|
1613
|
list($ip, $mask) = explode('/', trim($settings['tunnel_network']));
|
|
1614
|
if (($serversettings['dev_mode'] == 'tap') || ($serversettings['topology'] == "subnet")) {
|
|
1615
|
$csc_conf .= "ifconfig-push {$ip} " . gen_subnet_mask($mask) . "\n";
|
|
1616
|
} else {
|
|
1617
|
/* Because this is being pushed, the order from the client's point of view. */
|
|
1618
|
$baselong = gen_subnetv4($ip, $mask);
|
|
1619
|
$serverip = ip_after($baselong, 1);
|
|
1620
|
$clientip = ip_after($baselong, 2);
|
|
1621
|
$csc_conf .= "ifconfig-push {$clientip} {$serverip}\n";
|
|
1622
|
}
|
|
1623
|
}
|
|
1624
|
|
|
1625
|
if (!empty($serversettings['tunnel_networkv6']) && !empty($settings['tunnel_networkv6'])) {
|
|
1626
|
list($ipv6, $prefix) = explode('/', trim($serversettings['tunnel_networkv6']));
|
|
1627
|
list($ipv6_1, $ipv6_2) = openvpn_get_interface_ipv6($ipv6, $prefix);
|
|
1628
|
$csc_conf .= "ifconfig-ipv6-push {$settings['tunnel_networkv6']} {$ipv6_1}\n";
|
|
1629
|
}
|
|
1630
|
|
|
1631
|
file_put_contents($csc_path, $csc_conf);
|
|
1632
|
chown($csc_path, 'nobody');
|
|
1633
|
chgrp($csc_path, 'nobody');
|
|
1634
|
}
|
|
1635
|
}
|
|
1636
|
}
|
|
1637
|
}
|
|
1638
|
}
|
|
1639
|
|
|
1640
|
function openvpn_resync_csc_all() {
|
|
1641
|
global $config;
|
|
1642
|
if (is_array($config['openvpn']['openvpn-csc'])) {
|
|
1643
|
foreach ($config['openvpn']['openvpn-csc'] as & $settings) {
|
|
1644
|
openvpn_resync_csc($settings);
|
|
1645
|
}
|
|
1646
|
}
|
|
1647
|
}
|
|
1648
|
|
|
1649
|
function openvpn_delete_csc(& $settings) {
|
|
1650
|
global $g, $config, $openvpn_tls_server_modes;
|
|
1651
|
if (empty($settings['server_list'])) {
|
|
1652
|
$csc_server_list = array();
|
|
1653
|
} else {
|
|
1654
|
$csc_server_list = explode(",", $settings['server_list']);
|
|
1655
|
}
|
|
1656
|
|
|
1657
|
/* Loop through servers, find which ones used this CSC */
|
|
1658
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
1659
|
foreach ($config['openvpn']['openvpn-server'] as $serversettings) {
|
|
1660
|
if (isset($serversettings['disable'])) {
|
|
1661
|
continue;
|
|
1662
|
}
|
|
1663
|
if (in_array($serversettings['mode'], $openvpn_tls_server_modes)) {
|
|
1664
|
if ($serversettings['vpnid'] && (empty($csc_server_list) || in_array($serversettings['vpnid'], $csc_server_list))) {
|
|
1665
|
$csc_path = "{$g['openvpn_base']}/server{$serversettings['vpnid']}/csc/" . basename($settings['common_name']);
|
|
1666
|
unlink_if_exists($csc_path);
|
|
1667
|
}
|
|
1668
|
}
|
|
1669
|
}
|
|
1670
|
}
|
|
1671
|
}
|
|
1672
|
|
|
1673
|
// Resync the configuration and restart the VPN
|
|
1674
|
function openvpn_resync($mode, $settings) {
|
|
1675
|
openvpn_restart($mode, $settings);
|
|
1676
|
}
|
|
1677
|
|
|
1678
|
// Resync and restart all VPNs
|
|
1679
|
function openvpn_resync_all($interface = "") {
|
|
1680
|
global $g, $config;
|
|
1681
|
|
|
1682
|
openvpn_create_dirs();
|
|
1683
|
|
|
1684
|
if (!is_array($config['openvpn'])) {
|
|
1685
|
$config['openvpn'] = array();
|
|
1686
|
}
|
|
1687
|
|
|
1688
|
if ($interface <> "") {
|
|
1689
|
log_error(sprintf(gettext("Resyncing OpenVPN instances for interface %s."), convert_friendly_interface_to_friendly_descr($interface)));
|
|
1690
|
} else {
|
|
1691
|
log_error(gettext("Resyncing OpenVPN instances."));
|
|
1692
|
}
|
|
1693
|
|
|
1694
|
// Check if OpenVPN clients and servers require a resync.
|
|
1695
|
foreach (array("server", "client") as $type) {
|
|
1696
|
if (!is_array($config['openvpn']["openvpn-{$type}"])) {
|
|
1697
|
continue;
|
|
1698
|
}
|
|
1699
|
foreach ($config['openvpn']["openvpn-{$type}"] as & $settings) {
|
|
1700
|
$fpath = "{$g['openvpn_base']}/{$type}{$settings['vpnid']}/interface";
|
|
1701
|
$gw_group_change = FALSE;
|
|
1702
|
$ip_change = ($interface === "") ||
|
|
1703
|
($interface === $settings['interface']);
|
|
1704
|
|
|
1705
|
if (!$ip_change && file_exists($fpath)) {
|
|
1706
|
$gw_group_change =
|
|
1707
|
(trim(file_get_contents($fpath), " \t\n") !=
|
|
1708
|
get_failover_interface(
|
|
1709
|
$settings['interface']));
|
|
1710
|
}
|
|
1711
|
|
|
1712
|
if ($ip_change || $gw_group_change) {
|
|
1713
|
openvpn_resync($type, $settings);
|
|
1714
|
}
|
|
1715
|
}
|
|
1716
|
}
|
|
1717
|
|
|
1718
|
openvpn_resync_csc_all();
|
|
1719
|
|
|
1720
|
}
|
|
1721
|
|
|
1722
|
// Resync and restart all VPNs using a gateway group.
|
|
1723
|
function openvpn_resync_gwgroup($gwgroupname = "") {
|
|
1724
|
global $g, $config;
|
|
1725
|
|
|
1726
|
if ($gwgroupname <> "") {
|
|
1727
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
1728
|
foreach ($config['openvpn']['openvpn-server'] as & $settings) {
|
|
1729
|
if ($gwgroupname == $settings['interface']) {
|
|
1730
|
log_error(sprintf(gettext('Resyncing OpenVPN for gateway group %1$s server %2$s.'), $gwgroupname, $settings["description"]));
|
|
1731
|
openvpn_resync('server', $settings);
|
|
1732
|
}
|
|
1733
|
}
|
|
1734
|
}
|
|
1735
|
|
|
1736
|
if (is_array($config['openvpn']['openvpn-client'])) {
|
|
1737
|
foreach ($config['openvpn']['openvpn-client'] as & $settings) {
|
|
1738
|
if ($gwgroupname == $settings['interface']) {
|
|
1739
|
log_error(sprintf(gettext('Resyncing OpenVPN for gateway group %1$s client %2$s.'), $gwgroupname, $settings["description"]));
|
|
1740
|
openvpn_resync('client', $settings);
|
|
1741
|
}
|
|
1742
|
}
|
|
1743
|
}
|
|
1744
|
|
|
1745
|
// Note: no need to resysnc Client Specific (csc) here, as changes to the OpenVPN real interface do not effect these.
|
|
1746
|
|
|
1747
|
} else {
|
|
1748
|
log_error(gettext("openvpn_resync_gwgroup called with null gwgroup parameter."));
|
|
1749
|
}
|
|
1750
|
}
|
|
1751
|
|
|
1752
|
function openvpn_get_active_servers($type="multipoint") {
|
|
1753
|
global $config, $g;
|
|
1754
|
|
|
1755
|
$servers = array();
|
|
1756
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
1757
|
foreach ($config['openvpn']['openvpn-server'] as & $settings) {
|
|
1758
|
if (empty($settings) || isset($settings['disable'])) {
|
|
1759
|
continue;
|
|
1760
|
}
|
|
1761
|
|
|
1762
|
$prot = $settings['protocol'];
|
|
1763
|
$port = $settings['local_port'];
|
|
1764
|
|
|
1765
|
$server = array();
|
|
1766
|
$server['port'] = ($settings['local_port']) ? $settings['local_port'] : 1194;
|
|
1767
|
$server['mode'] = $settings['mode'];
|
|
1768
|
if ($settings['description']) {
|
|
1769
|
$server['name'] = "{$settings['description']} {$prot}:{$port}";
|
|
1770
|
} else {
|
|
1771
|
$server['name'] = "Server {$prot}:{$port}";
|
|
1772
|
}
|
|
1773
|
$server['conns'] = array();
|
|
1774
|
$server['vpnid'] = $settings['vpnid'];
|
|
1775
|
$server['mgmt'] = "server{$server['vpnid']}";
|
|
1776
|
$socket = "unix://{$g['openvpn_base']}/{$server['mgmt']}/sock";
|
|
1777
|
list($tn, $sm) = explode('/', trim($settings['tunnel_network']));
|
|
1778
|
|
|
1779
|
if ((($server['mode'] == "p2p_shared_key") || ($sm >= 30)) && ($type == "p2p")) {
|
|
1780
|
$servers[] = openvpn_get_client_status($server, $socket);
|
|
1781
|
} elseif (($server['mode'] != "p2p_shared_key") && ($type == "multipoint") && ($sm < 30)) {
|
|
1782
|
$servers[] = openvpn_get_server_status($server, $socket);
|
|
1783
|
}
|
|
1784
|
}
|
|
1785
|
}
|
|
1786
|
return $servers;
|
|
1787
|
}
|
|
1788
|
|
|
1789
|
function openvpn_get_server_status($server, $socket) {
|
|
1790
|
$errval = null;
|
|
1791
|
$errstr = null;
|
|
1792
|
$fp = @stream_socket_client($socket, $errval, $errstr, 1);
|
|
1793
|
if ($fp) {
|
|
1794
|
stream_set_timeout($fp, 1);
|
|
1795
|
|
|
1796
|
/* send our status request */
|
|
1797
|
fputs($fp, "status 2\n");
|
|
1798
|
|
|
1799
|
/* recv all response lines */
|
|
1800
|
while (!feof($fp)) {
|
|
1801
|
|
|
1802
|
/* read the next line */
|
|
1803
|
$line = fgets($fp, 1024);
|
|
1804
|
|
|
1805
|
$info = stream_get_meta_data($fp);
|
|
1806
|
if ($info['timed_out']) {
|
|
1807
|
break;
|
|
1808
|
}
|
|
1809
|
|
|
1810
|
/* parse header list line */
|
|
1811
|
if (strstr($line, "HEADER")) {
|
|
1812
|
continue;
|
|
1813
|
}
|
|
1814
|
|
|
1815
|
/* parse end of output line */
|
|
1816
|
if (strstr($line, "END") || strstr($line, "ERROR")) {
|
|
1817
|
break;
|
|
1818
|
}
|
|
1819
|
|
|
1820
|
/* parse client list line */
|
|
1821
|
if (strstr($line, "CLIENT_LIST")) {
|
|
1822
|
$list = explode(",", $line);
|
|
1823
|
$conn = array();
|
|
1824
|
$conn['common_name'] = $list[1];
|
|
1825
|
$conn['remote_host'] = $list[2];
|
|
1826
|
$conn['virtual_addr'] = $list[3];
|
|
1827
|
$conn['virtual_addr6'] = $list[4];
|
|
1828
|
$conn['bytes_recv'] = $list[5];
|
|
1829
|
$conn['bytes_sent'] = $list[6];
|
|
1830
|
$conn['connect_time'] = $list[7];
|
|
1831
|
$conn['connect_time_unix'] = $list[8];
|
|
1832
|
$conn['user_name'] = $list[9];
|
|
1833
|
$conn['client_id'] = $list[10];
|
|
1834
|
$conn['peer_id'] = $list[11];
|
|
1835
|
$conn['cipher'] = $list[12];
|
|
1836
|
$server['conns'][] = $conn;
|
|
1837
|
}
|
|
1838
|
/* parse routing table lines */
|
|
1839
|
if (strstr($line, "ROUTING_TABLE")) {
|
|
1840
|
$list = explode(",", $line);
|
|
1841
|
$conn = array();
|
|
1842
|
$conn['virtual_addr'] = $list[1];
|
|
1843
|
$conn['common_name'] = $list[2];
|
|
1844
|
$conn['remote_host'] = $list[3];
|
|
1845
|
$conn['last_time'] = $list[4];
|
|
1846
|
$server['routes'][] = $conn;
|
|
1847
|
}
|
|
1848
|
}
|
|
1849
|
|
|
1850
|
/* cleanup */
|
|
1851
|
fclose($fp);
|
|
1852
|
} else {
|
|
1853
|
$conn = array();
|
|
1854
|
$conn['common_name'] = "[error]";
|
|
1855
|
$conn['remote_host'] = gettext("Unable to contact daemon");
|
|
1856
|
$conn['virtual_addr'] = gettext("Service not running?");
|
|
1857
|
$conn['bytes_recv'] = 0;
|
|
1858
|
$conn['bytes_sent'] = 0;
|
|
1859
|
$conn['connect_time'] = 0;
|
|
1860
|
$server['conns'][] = $conn;
|
|
1861
|
}
|
|
1862
|
return $server;
|
|
1863
|
}
|
|
1864
|
|
|
1865
|
function openvpn_get_active_clients() {
|
|
1866
|
global $config, $g;
|
|
1867
|
|
|
1868
|
$clients = array();
|
|
1869
|
if (is_array($config['openvpn']['openvpn-client'])) {
|
|
1870
|
foreach ($config['openvpn']['openvpn-client'] as & $settings) {
|
|
1871
|
|
|
1872
|
if (empty($settings) || isset($settings['disable'])) {
|
|
1873
|
continue;
|
|
1874
|
}
|
|
1875
|
|
|
1876
|
$prot = $settings['protocol'];
|
|
1877
|
$port = ($settings['local_port']) ? ":{$settings['local_port']}" : "";
|
|
1878
|
|
|
1879
|
$client = array();
|
|
1880
|
$client['port'] = $settings['local_port'];
|
|
1881
|
if ($settings['description']) {
|
|
1882
|
$client['name'] = "{$settings['description']} {$prot}{$port}";
|
|
1883
|
} else {
|
|
1884
|
$client['name'] = "Client {$prot}{$port}";
|
|
1885
|
}
|
|
1886
|
|
|
1887
|
$client['vpnid'] = $settings['vpnid'];
|
|
1888
|
$client['mgmt'] = "client{$client['vpnid']}";
|
|
1889
|
$socket = "unix://{$g['openvpn_base']}/{$client['mgmt']}/sock";
|
|
1890
|
$client['status']="down";
|
|
1891
|
|
|
1892
|
$clients[] = openvpn_get_client_status($client, $socket);
|
|
1893
|
}
|
|
1894
|
}
|
|
1895
|
return $clients;
|
|
1896
|
}
|
|
1897
|
|
|
1898
|
function openvpn_get_client_status($client, $socket) {
|
|
1899
|
$errval = null;
|
|
1900
|
$errstr = null;
|
|
1901
|
$fp = @stream_socket_client($socket, $errval, $errstr, 1);
|
|
1902
|
if ($fp) {
|
|
1903
|
stream_set_timeout($fp, 1);
|
|
1904
|
/* send our status request */
|
|
1905
|
fputs($fp, "state 1\n");
|
|
1906
|
|
|
1907
|
/* recv all response lines */
|
|
1908
|
while (!feof($fp)) {
|
|
1909
|
/* read the next line */
|
|
1910
|
$line = fgets($fp, 1024);
|
|
1911
|
|
|
1912
|
$info = stream_get_meta_data($fp);
|
|
1913
|
if ($info['timed_out']) {
|
|
1914
|
break;
|
|
1915
|
}
|
|
1916
|
|
|
1917
|
/* Get the client state */
|
|
1918
|
if (strstr($line, "CONNECTED")) {
|
|
1919
|
$client['status'] = "up";
|
|
1920
|
$list = explode(",", $line);
|
|
1921
|
|
|
1922
|
$client['connect_time'] = date("D M j G:i:s Y", $list[0]);
|
|
1923
|
$client['virtual_addr'] = $list[3];
|
|
1924
|
$client['remote_host'] = $list[4];
|
|
1925
|
$client['remote_port'] = $list[5];
|
|
1926
|
$client['local_host'] = $list[6];
|
|
1927
|
$client['local_port'] = $list[7];
|
|
1928
|
$client['virtual_addr6'] = $list[8];
|
|
1929
|
}
|
|
1930
|
if (strstr($line, "CONNECTING")) {
|
|
1931
|
$client['status'] = "connecting";
|
|
1932
|
}
|
|
1933
|
if (strstr($line, "ASSIGN_IP")) {
|
|
1934
|
$client['status'] = "waiting";
|
|
1935
|
$list = explode(",", $line);
|
|
1936
|
|
|
1937
|
$client['connect_time'] = date("D M j G:i:s Y", $list[0]);
|
|
1938
|
$client['virtual_addr'] = $list[3];
|
|
1939
|
}
|
|
1940
|
if (strstr($line, "RECONNECTING")) {
|
|
1941
|
$client['status'] = "reconnecting";
|
|
1942
|
$list = explode(",", $line);
|
|
1943
|
|
|
1944
|
$client['connect_time'] = date("D M j G:i:s Y", $list[0]);
|
|
1945
|
$client['status'] .= "; " . $list[2];
|
|
1946
|
}
|
|
1947
|
/* parse end of output line */
|
|
1948
|
if (strstr($line, "END") || strstr($line, "ERROR")) {
|
|
1949
|
break;
|
|
1950
|
}
|
|
1951
|
}
|
|
1952
|
|
|
1953
|
/* If up, get read/write stats */
|
|
1954
|
if (strcmp($client['status'], "up") == 0) {
|
|
1955
|
fputs($fp, "status 2\n");
|
|
1956
|
/* recv all response lines */
|
|
1957
|
while (!feof($fp)) {
|
|
1958
|
/* read the next line */
|
|
1959
|
$line = fgets($fp, 1024);
|
|
1960
|
|
|
1961
|
$info = stream_get_meta_data($fp);
|
|
1962
|
if ($info['timed_out']) {
|
|
1963
|
break;
|
|
1964
|
}
|
|
1965
|
|
|
1966
|
if (strstr($line, "TCP/UDP read bytes")) {
|
|
1967
|
$list = explode(",", $line);
|
|
1968
|
$client['bytes_recv'] = $list[1];
|
|
1969
|
}
|
|
1970
|
|
|
1971
|
if (strstr($line, "TCP/UDP write bytes")) {
|
|
1972
|
$list = explode(",", $line);
|
|
1973
|
$client['bytes_sent'] = $list[1];
|
|
1974
|
}
|
|
1975
|
|
|
1976
|
/* parse end of output line */
|
|
1977
|
if (strstr($line, "END")) {
|
|
1978
|
break;
|
|
1979
|
}
|
|
1980
|
}
|
|
1981
|
}
|
|
1982
|
|
|
1983
|
fclose($fp);
|
|
1984
|
|
|
1985
|
} else {
|
|
1986
|
$client['remote_host'] = gettext("Unable to contact daemon");
|
|
1987
|
$client['virtual_addr'] = gettext("Service not running?");
|
|
1988
|
$client['bytes_recv'] = 0;
|
|
1989
|
$client['bytes_sent'] = 0;
|
|
1990
|
$client['connect_time'] = 0;
|
|
1991
|
}
|
|
1992
|
return $client;
|
|
1993
|
}
|
|
1994
|
|
|
1995
|
function openvpn_kill_client($port, $remipp) {
|
|
1996
|
global $g;
|
|
1997
|
|
|
1998
|
//$tcpsrv = "tcp://127.0.0.1:{$port}";
|
|
1999
|
$tcpsrv = "unix://{$g['openvpn_base']}/{$port}/sock";
|
|
2000
|
$errval = null;
|
|
2001
|
$errstr = null;
|
|
2002
|
|
|
2003
|
/* open a tcp connection to the management port of each server */
|
|
2004
|
$fp = @stream_socket_client($tcpsrv, $errval, $errstr, 1);
|
|
2005
|
$killed = -1;
|
|
2006
|
if ($fp) {
|
|
2007
|
stream_set_timeout($fp, 1);
|
|
2008
|
fputs($fp, "kill {$remipp}\n");
|
|
2009
|
while (!feof($fp)) {
|
|
2010
|
$line = fgets($fp, 1024);
|
|
2011
|
|
|
2012
|
$info = stream_get_meta_data($fp);
|
|
2013
|
if ($info['timed_out']) {
|
|
2014
|
break;
|
|
2015
|
}
|
|
2016
|
|
|
2017
|
/* parse header list line */
|
|
2018
|
if (strpos($line, "INFO:") !== false) {
|
|
2019
|
continue;
|
|
2020
|
}
|
|
2021
|
if (strpos($line, "SUCCESS") !== false) {
|
|
2022
|
$killed = 0;
|
|
2023
|
}
|
|
2024
|
break;
|
|
2025
|
}
|
|
2026
|
fclose($fp);
|
|
2027
|
}
|
|
2028
|
return $killed;
|
|
2029
|
}
|
|
2030
|
|
|
2031
|
function openvpn_refresh_crls() {
|
|
2032
|
global $g, $config;
|
|
2033
|
|
|
2034
|
openvpn_create_dirs();
|
|
2035
|
|
|
2036
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
2037
|
foreach ($config['openvpn']['openvpn-server'] as $settings) {
|
|
2038
|
if (empty($settings)) {
|
|
2039
|
continue;
|
|
2040
|
}
|
|
2041
|
if (isset($settings['disable'])) {
|
|
2042
|
continue;
|
|
2043
|
}
|
|
2044
|
// Write the settings for the keys
|
|
2045
|
switch ($settings['mode']) {
|
|
2046
|
case 'p2p_tls':
|
|
2047
|
case 'server_tls':
|
|
2048
|
case 'server_tls_user':
|
|
2049
|
case 'server_user':
|
|
2050
|
$param = array('caref' => $settings['caref']);
|
|
2051
|
$cas = ca_chain_array($param);
|
|
2052
|
$capath = "{$g['openvpn_base']}/server{$settings['vpnid']}/ca";
|
|
2053
|
if (!empty($settings['crlref'])) {
|
|
2054
|
$crl = lookup_crl($settings['crlref']);
|
|
2055
|
crl_update($crl);
|
|
2056
|
}
|
|
2057
|
foreach ($cas as $ca) {
|
|
2058
|
ca_setup_capath($ca, $capath, $crl, true);
|
|
2059
|
}
|
|
2060
|
unset($cas, $param, $capath, $crl);
|
|
2061
|
break;
|
|
2062
|
}
|
|
2063
|
}
|
|
2064
|
}
|
|
2065
|
}
|
|
2066
|
|
|
2067
|
function openvpn_create_dirs() {
|
|
2068
|
global $g, $config, $openvpn_tls_server_modes;
|
|
2069
|
if (!is_dir($g['openvpn_base'])) {
|
|
2070
|
safe_mkdir($g['openvpn_base'], 0750);
|
|
2071
|
}
|
|
2072
|
|
|
2073
|
init_config_arr(array('openvpn', 'openvpn-server'));
|
|
2074
|
init_config_arr(array('openvpn', 'openvpn-client'));
|
|
2075
|
foreach(array('server', 'client') as $mode) {
|
|
2076
|
foreach ($config['openvpn']["openvpn-{$mode}"] as $settings) {
|
|
2077
|
$target = "{$g['openvpn_base']}/{$mode}{$settings['vpnid']}";
|
|
2078
|
@unlink_if_exists($csctarget);
|
|
2079
|
@safe_mkdir($target);
|
|
2080
|
if (in_array($settings['mode'], $openvpn_tls_server_modes)) {
|
|
2081
|
if ($settings['vpnid']) {
|
|
2082
|
$csctarget = "{$target}/csc/";
|
|
2083
|
@unlink_if_exists($csctarget);
|
|
2084
|
@safe_mkdir($csctarget);
|
|
2085
|
}
|
|
2086
|
}
|
|
2087
|
}
|
|
2088
|
}
|
|
2089
|
}
|
|
2090
|
|
|
2091
|
function openvpn_get_interface_ip($ip, $cidr) {
|
|
2092
|
$subnet = gen_subnetv4($ip, $cidr);
|
|
2093
|
if ($cidr == 31) {
|
|
2094
|
$ip1 = $subnet;
|
|
2095
|
} else {
|
|
2096
|
$ip1 = ip_after($subnet);
|
|
2097
|
}
|
|
2098
|
$ip2 = ip_after($ip1);
|
|
2099
|
return array($ip1, $ip2);
|
|
2100
|
}
|
|
2101
|
|
|
2102
|
function openvpn_get_interface_ipv6($ipv6, $prefix) {
|
|
2103
|
$basev6 = gen_subnetv6($ipv6, $prefix);
|
|
2104
|
// Is there a better way to do this math?
|
|
2105
|
$ipv6_arr = explode(':', $basev6);
|
|
2106
|
$last = hexdec(array_pop($ipv6_arr));
|
|
2107
|
if ($prefix == 127) {
|
|
2108
|
$last--;
|
|
2109
|
}
|
|
2110
|
$ipv6_1 = text_to_compressed_ip6(implode(':', $ipv6_arr) . ':' . dechex($last + 1));
|
|
2111
|
$ipv6_2 = text_to_compressed_ip6(implode(':', $ipv6_arr) . ':' . dechex($last + 2));
|
|
2112
|
return array($ipv6_1, $ipv6_2);
|
|
2113
|
}
|
|
2114
|
|
|
2115
|
function openvpn_clear_route($mode, $settings) {
|
|
2116
|
if (empty($settings['tunnel_network'])) {
|
|
2117
|
return;
|
|
2118
|
}
|
|
2119
|
list($ip, $cidr) = explode('/', trim($settings['tunnel_network']));
|
|
2120
|
$mask = gen_subnet_mask($cidr);
|
|
2121
|
$clear_route = false;
|
|
2122
|
|
|
2123
|
switch ($settings['mode']) {
|
|
2124
|
case 'shared_key':
|
|
2125
|
$clear_route = true;
|
|
2126
|
break;
|
|
2127
|
case 'p2p_tls':
|
|
2128
|
case 'p2p_shared_key':
|
|
2129
|
if ($cidr >= 30) {
|
|
2130
|
$clear_route = true;
|
|
2131
|
}
|
|
2132
|
break;
|
|
2133
|
}
|
|
2134
|
|
|
2135
|
if ($clear_route && !empty($ip) && !empty($mask)) {
|
|
2136
|
list($ip1, $ip2) = openvpn_get_interface_ip($ip, $cidr);
|
|
2137
|
$ip_to_clear = ($mode == "server") ? $ip1 : $ip2;
|
|
2138
|
/* XXX: Family for route? */
|
|
2139
|
mwexec("/sbin/route -q delete {$ip_to_clear}");
|
|
2140
|
}
|
|
2141
|
}
|
|
2142
|
|
|
2143
|
function openvpn_gen_routes($value, $ipproto = "ipv4", $push = false, $iroute = false) {
|
|
2144
|
$routes = "";
|
|
2145
|
if (empty($value)) {
|
|
2146
|
return "";
|
|
2147
|
}
|
|
2148
|
$networks = explode(',', $value);
|
|
2149
|
|
|
2150
|
foreach ($networks as $network) {
|
|
2151
|
if ($ipproto == "ipv4") {
|
|
2152
|
$route = openvpn_gen_route_ipv4($network, $iroute);
|
|
2153
|
} else {
|
|
2154
|
$route = openvpn_gen_route_ipv6($network, $iroute);
|
|
2155
|
}
|
|
2156
|
|
|
2157
|
if ($push) {
|
|
2158
|
$routes .= "push \"{$route}\"\n";
|
|
2159
|
} else {
|
|
2160
|
$routes .= "{$route}\n";
|
|
2161
|
}
|
|
2162
|
}
|
|
2163
|
return $routes;
|
|
2164
|
}
|
|
2165
|
|
|
2166
|
function openvpn_gen_route_ipv4($network, $iroute = false) {
|
|
2167
|
$i = ($iroute) ? "i" : "";
|
|
2168
|
list($ip, $mask) = explode('/', trim($network));
|
|
2169
|
$mask = gen_subnet_mask($mask);
|
|
2170
|
return "{$i}route $ip $mask";
|
|
2171
|
}
|
|
2172
|
|
|
2173
|
function openvpn_gen_route_ipv6($network, $iroute = false) {
|
|
2174
|
$i = ($iroute) ? "i" : "";
|
|
2175
|
list($ipv6, $prefix) = explode('/', trim($network));
|
|
2176
|
if (empty($prefix) && !is_numeric($prefix)) {
|
|
2177
|
$prefix = "128";
|
|
2178
|
}
|
|
2179
|
return "{$i}route-ipv6 ${ipv6}/${prefix}";
|
|
2180
|
}
|
|
2181
|
|
|
2182
|
function openvpn_get_settings($mode, $vpnid) {
|
|
2183
|
global $config;
|
|
2184
|
|
|
2185
|
if (is_array($config['openvpn']['openvpn-server'])) {
|
|
2186
|
foreach ($config['openvpn']['openvpn-server'] as $settings) {
|
|
2187
|
if (isset($settings['disable'])) {
|
|
2188
|
continue;
|
|
2189
|
}
|
|
2190
|
|
|
2191
|
if ($vpnid != 0 && $vpnid == $settings['vpnid']) {
|
|
2192
|
return $settings;
|
|
2193
|
}
|
|
2194
|
}
|
|
2195
|
}
|
|
2196
|
|
|
2197
|
if (is_array($config['openvpn']['openvpn-client'])) {
|
|
2198
|
foreach ($config['openvpn']['openvpn-client'] as $settings) {
|
|
2199
|
if (isset($settings['disable'])) {
|
|
2200
|
continue;
|
|
2201
|
}
|
|
2202
|
|
|
2203
|
if ($vpnid != 0 && $vpnid == $settings['vpnid']) {
|
|
2204
|
return $settings;
|
|
2205
|
}
|
|
2206
|
}
|
|
2207
|
}
|
|
2208
|
|
|
2209
|
return array();
|
|
2210
|
}
|
|
2211
|
|
|
2212
|
function openvpn_restart_by_vpnid($mode, $vpnid) {
|
|
2213
|
$settings = openvpn_get_settings($mode, $vpnid);
|
|
2214
|
openvpn_restart($mode, $settings);
|
|
2215
|
}
|
|
2216
|
|
|
2217
|
/****f* certs/openvpn_is_tunnel_network_in_use
|
|
2218
|
* NAME
|
|
2219
|
* openvpn_is_tunnel_network_in_use
|
|
2220
|
* Check if the supplied network is in use as an OpenVPN server or client
|
|
2221
|
* tunnel network
|
|
2222
|
* INPUTS
|
|
2223
|
* $net : The IPv4 or IPv6 network to check
|
|
2224
|
* RESULT
|
|
2225
|
* boolean value: true if the network is in use, false otherwise.
|
|
2226
|
******/
|
|
2227
|
|
|
2228
|
function openvpn_is_tunnel_network_in_use($net) {
|
|
2229
|
global $config;
|
|
2230
|
init_config_arr(array('openvpn', 'openvpn-server'));
|
|
2231
|
init_config_arr(array('openvpn', 'openvpn-client'));
|
|
2232
|
/* Determine whether to check IPv4 or IPv6 tunnel networks */
|
|
2233
|
$tocheck = 'tunnel_network';
|
|
2234
|
if (is_v6($net)) {
|
|
2235
|
$tocheck .= "v6";
|
|
2236
|
}
|
|
2237
|
/* Check all OpenVPN clients and servers for this tunnel network */
|
|
2238
|
foreach(array('server', 'client') as $mode) {
|
|
2239
|
foreach ($config['openvpn']["openvpn-{$mode}"] as $ovpn) {
|
|
2240
|
if (!empty($ovpn[$tocheck]) &&
|
|
2241
|
($ovpn[$tocheck] == $net)) {
|
|
2242
|
return true;
|
|
2243
|
}
|
|
2244
|
}
|
|
2245
|
}
|
|
2246
|
return false;
|
|
2247
|
}
|
|
2248
|
|
|
2249
|
function openvpn_build_data_cipher_list($data_ciphers = 'AES-256-GCM,AES-128-GCM,CHACHA20-POLY1305', $fallback_cipher = 'AES-256-GBC', $ncp_enabled = true) {
|
|
2250
|
/* If the data_ciphers list is empty, populate it with the fallback cipher. */
|
|
2251
|
if (empty($data_ciphers) || !$ncp_enabled) {
|
|
2252
|
$data_ciphers = $fallback_cipher;
|
|
2253
|
}
|
|
2254
|
/* Add the fallback cipher to the data ciphers list if it isn't already present */
|
|
2255
|
if (!in_array($fallback_cipher, explode(',', $data_ciphers))) {
|
|
2256
|
$data_ciphers .= ',' . $fallback_cipher;
|
|
2257
|
}
|
|
2258
|
return $data_ciphers;
|
|
2259
|
}
|
|
2260
|
|
|
2261
|
?>
|