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cb7d18d5
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Renato Botelho
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#!/usr/local/bin/php-cgi -f
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3c11bd3c
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Matthew Grooms
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<?php
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/* $Id$ */
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/*
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ce77a9c4
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Phil Davis
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openvpn.auth-user.php
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3c11bd3c
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Matthew Grooms
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ce77a9c4
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Phil Davis
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Copyright (C) 2008 Shrew Soft Inc
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Copyright (C) 2010 Ermal Luçi
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Copyright (C) 2013-2015 Electric Sheep Fencing, LP
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All rights reserved.
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3c11bd3c
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Matthew Grooms
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ce77a9c4
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Phil Davis
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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3c11bd3c
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Matthew Grooms
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ce77a9c4
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Phil Davis
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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3c11bd3c
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Matthew Grooms
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ce77a9c4
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Phil Davis
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3c11bd3c
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Matthew Grooms
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ce77a9c4
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Phil Davis
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THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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1f5309a3
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Matthew Grooms
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3c11bd3c
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Matthew Grooms
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*/
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523855b0
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Scott Ullrich
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/*
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b37a2e8c
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Phil Davis
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pfSense_BUILDER_BINARIES:
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523855b0
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Scott Ullrich
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pfSense_MODULE: openvpn
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*/
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3c11bd3c
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Matthew Grooms
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/*
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* OpenVPN calls this script to authenticate a user
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* based on a username and password. We lookup these
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* in our config.xml file and check the credentials.
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*/
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befad728
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Ermal
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require_once("globals.inc");
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| 45 |
3c11bd3c
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Matthew Grooms
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require_once("config.inc");
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| 46 |
cc686d98
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Ermal Lu?i
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require_once("radius.inc");
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a13ce628
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Ermal Lu?i
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require_once("auth.inc");
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| 48 |
cc686d98
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Ermal Lu?i
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require_once("interfaces.inc");
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3c11bd3c
|
Matthew Grooms
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cc686d98
|
Ermal Lu?i
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/**
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* Get the NAS-Identifier
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*
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* We will use our local hostname to make up the nas_id
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*/
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if (!function_exists("getNasID")) {
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086cf944
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Phil Davis
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function getNasID() {
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b37a2e8c
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Phil Davis
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global $g;
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cc686d98
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Ermal Lu?i
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b37a2e8c
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Phil Davis
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$nasId = gethostname();
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if (empty($nasId)) {
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$nasId = $g['product_name'];
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}
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return $nasId;
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cc686d98
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Ermal Lu?i
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}
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}
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/**
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* Get the NAS-IP-Address based on the current wan address
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*
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* Use functions in interfaces.inc to find this out
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*
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*/
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if (!function_exists("getNasIP")) {
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086cf944
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Phil Davis
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function getNasIP() {
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b37a2e8c
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Phil Davis
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$nasIp = get_interface_ip();
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if (!$nasIp) {
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$nasIp = "0.0.0.0";
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}
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return $nasIp;
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cc686d98
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Ermal Lu?i
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}
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}
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3c11bd3c
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Matthew Grooms
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/* setup syslog logging */
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openlog("openvpn", LOG_ODELAY, LOG_AUTH);
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8fa0a534
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Ermal LUÇI
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if (isset($_GET['username'])) {
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| 86 |
5e28dad4
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Ermal
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$authmodes = explode(",", $_GET['authcfg']);
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| 87 |
fdf6fcb3
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Ermal LUÇI
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$username = base64_decode(str_replace('%3D', '=', $_GET['username']));
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| 88 |
e821f30e
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Ermal LUÇI
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$password = base64_decode(str_replace('%3D', '=', $_GET['password']));
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5e28dad4
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Ermal
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$common_name = $_GET['cn'];
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$modeid = $_GET['modeid'];
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$strictusercn = $_GET['strictcn'] == "false" ? false : true;
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} else {
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/* read data from environment */
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$username = getenv("username");
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$password = getenv("password");
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$common_name = getenv("common_name");
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}
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3c11bd3c
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Matthew Grooms
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if (!$username || !$password) {
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1f5309a3
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Matthew Grooms
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syslog(LOG_ERR, "invalid user authentication environment");
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8fa0a534
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Ermal LUÇI
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if (isset($_GET['username'])) {
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5e28dad4
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Ermal
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echo "FAILED";
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b2af12ad
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Ermal
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closelog();
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5e28dad4
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Ermal
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return;
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b2af12ad
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Ermal
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} else {
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closelog();
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52550ca5
|
Ermal LUÇI
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return (-1);
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b2af12ad
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Ermal
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}
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3c11bd3c
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Matthew Grooms
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}
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b37a2e8c
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Phil Davis
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/* Replaced by a sed with proper variables used below(ldap parameters). */
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c61e4626
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Ermal Lu?i
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//<template>
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1492e02c
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Ermal
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if (file_exists("{$g['varetc_path']}/openvpn/{$modeid}.ca")) {
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putenv("LDAPTLS_CACERT={$g['varetc_path']}/openvpn/{$modeid}.ca");
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putenv("LDAPTLS_REQCERT=never");
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}
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c61e4626
|
Ermal Lu?i
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$authenticated = false;
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8901958c
|
jim-p
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if (($strictusercn === true) && ($common_name != $username)) {
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syslog(LOG_WARNING, "Username does not match certificate common name ({$username} != {$common_name}), access denied.\n");
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8fa0a534
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Ermal LUÇI
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if (isset($_GET['username'])) {
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5e28dad4
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Ermal
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echo "FAILED";
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b2af12ad
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Ermal
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closelog();
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5e28dad4
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Ermal
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return;
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b2af12ad
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Ermal
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} else {
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closelog();
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52550ca5
|
Ermal LUÇI
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return (1);
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b2af12ad
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Ermal
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}
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5e28dad4
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Ermal
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}
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if (!is_array($authmodes)) {
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syslog(LOG_WARNING, "No authentication server has been selected to authenticate against. Denying authentication for user {$username}");
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8fa0a534
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Ermal LUÇI
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if (isset($_GET['username'])) {
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| 136 |
5e28dad4
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Ermal
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echo "FAILED";
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| 137 |
b2af12ad
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Ermal
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closelog();
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5e28dad4
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Ermal
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return;
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b2af12ad
|
Ermal
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} else {
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closelog();
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52550ca5
|
Ermal LUÇI
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return (1);
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| 142 |
b2af12ad
|
Ermal
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}
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| 143 |
8901958c
|
jim-p
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}
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| 145 |
1492e02c
|
Ermal
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$attributes = array();
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| 146 |
c61e4626
|
Ermal Lu?i
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foreach ($authmodes as $authmode) {
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$authcfg = auth_get_authserver($authmode);
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| 148 |
b37a2e8c
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Phil Davis
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if (!$authcfg && $authmode != "local") {
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c61e4626
|
Ermal Lu?i
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continue;
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| 150 |
b37a2e8c
|
Phil Davis
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}
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c61e4626
|
Ermal Lu?i
|
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| 152 |
1492e02c
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Ermal
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$authenticated = authenticate_user($username, $password, $authcfg, $attributes);
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b37a2e8c
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Phil Davis
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if ($authenticated == true) {
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006a162f
|
Ermal Lu?i
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break;
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| 155 |
b37a2e8c
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Phil Davis
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}
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| 156 |
c61e4626
|
Ermal Lu?i
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}
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| 158 |
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if ($authenticated == false) {
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| 159 |
3260b82f
|
Ermal
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syslog(LOG_WARNING, "user '{$username}' could not authenticate.\n");
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| 160 |
8fa0a534
|
Ermal LUÇI
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if (isset($_GET['username'])) {
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| 161 |
5e28dad4
|
Ermal
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echo "FAILED";
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| 162 |
b2af12ad
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Ermal
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closelog();
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| 163 |
5e28dad4
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Ermal
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return;
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| 164 |
b2af12ad
|
Ermal
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} else {
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| 165 |
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closelog();
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| 166 |
52550ca5
|
Ermal LUÇI
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return (-1);
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| 167 |
b2af12ad
|
Ermal
|
}
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| 168 |
3c11bd3c
|
Matthew Grooms
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}
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| 169 |
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| 170 |
b37a2e8c
|
Phil Davis
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if (file_exists("/etc/inc/openvpn.attributes.php")) {
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include_once("/etc/inc/openvpn.attributes.php");
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| 172 |
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}
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| 173 |
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| 174 |
1492e02c
|
Ermal
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$content = "";
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| 175 |
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if (is_array($attributes['dns-servers'])) {
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| 176 |
b37a2e8c
|
Phil Davis
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foreach ($attributes['dns-servers'] as $dnssrv) {
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if (is_ipaddr($dnssrv)) {
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$content .= "push \"dhcp-option DNS {$dnssrv}\"\n";
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}
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}
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| 181 |
1492e02c
|
Ermal
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}
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| 182 |
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if (is_array($attributes['routes'])) {
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| 183 |
b37a2e8c
|
Phil Davis
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foreach ($attributes['routes'] as $route) {
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| 184 |
5e28dad4
|
Ermal
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$content .= "push \"route {$route} vpn_gateway\"\n";
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| 185 |
b37a2e8c
|
Phil Davis
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}
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| 186 |
1492e02c
|
Ermal
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}
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| 187 |
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| 188 |
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if (isset($attributes['framed_ip'])) {
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| 189 |
ee8f9940
|
doktornotor
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if (isset($attributes['framed_mask'])) {
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| 190 |
b37a2e8c
|
Phil Davis
|
$content .= "topology subnet\n";
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$content .= "ifconfig-push {$attributes['framed_ip']} {$attributes['framed_mask']}";
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| 192 |
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} else {
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| 193 |
ee8f9940
|
doktornotor
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$content .= "topology net30\n";
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| 194 |
356ec787
|
doktornotor
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$content .= "ifconfig-push {$attributes['framed_ip']} ". long2ip((ip2long($attributes['framed_ip']) - 1));
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| 195 |
ee8f9940
|
doktornotor
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}
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| 196 |
b37a2e8c
|
Phil Davis
|
}
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| 197 |
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| 198 |
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if (!empty($content)) {
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| 199 |
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@file_put_contents("{$g['tmp_path']}/{$username}", $content);
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| 200 |
1492e02c
|
Ermal
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}
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| 201 |
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| 202 |
3260b82f
|
Ermal
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syslog(LOG_NOTICE, "user '{$username}' authenticated\n");
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| 203 |
b2af12ad
|
Ermal
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closelog();
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| 204 |
a13ce628
|
Ermal Lu?i
|
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| 205 |
b37a2e8c
|
Phil Davis
|
if (isset($_GET['username'])) {
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| 206 |
5e28dad4
|
Ermal
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echo "OK";
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| 207 |
b37a2e8c
|
Phil Davis
|
} else {
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| 208 |
52550ca5
|
Ermal LUÇI
|
return (0);
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| 209 |
b37a2e8c
|
Phil Davis
|
}
|
| 210 |
3c11bd3c
|
Matthew Grooms
|
|
| 211 |
fe2031ab
|
Ermal
|
?>
|