summaryrefslogtreecommitdiffstats
path: root/src/etc/inc/openvpn.auth-user.php
diff options
context:
space:
mode:
Diffstat (limited to 'src/etc/inc/openvpn.auth-user.php')
-rw-r--r--src/etc/inc/openvpn.auth-user.php213
1 files changed, 213 insertions, 0 deletions
diff --git a/src/etc/inc/openvpn.auth-user.php b/src/etc/inc/openvpn.auth-user.php
new file mode 100644
index 0000000..e108a4f
--- /dev/null
+++ b/src/etc/inc/openvpn.auth-user.php
@@ -0,0 +1,213 @@
+#!/usr/local/bin/php-cgi -f
+<?php
+/* $Id$ */
+/*
+ openvpn.auth-user.php
+
+ Copyright (C) 2008 Shrew Soft Inc
+ Copyright (C) 2010 Ermal Lu├ži
+ Copyright (C) 2013-2015 Electric Sheep Fencing, LP
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright
+ notice, this list of conditions and the following disclaimer in the
+ documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
+ OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ POSSIBILITY OF SUCH DAMAGE.
+
+*/
+/*
+ pfSense_BUILDER_BINARIES:
+ pfSense_MODULE: openvpn
+*/
+/*
+ * OpenVPN calls this script to authenticate a user
+ * based on a username and password. We lookup these
+ * in our config.xml file and check the credentials.
+ */
+
+require_once("globals.inc");
+require_once("config.inc");
+require_once("radius.inc");
+require_once("auth.inc");
+require_once("interfaces.inc");
+
+/**
+ * Get the NAS-Identifier
+ *
+ * We will use our local hostname to make up the nas_id
+ */
+if (!function_exists("getNasID")) {
+function getNasID() {
+ global $g;
+
+ $nasId = gethostname();
+ if (empty($nasId)) {
+ $nasId = $g['product_name'];
+ }
+ return $nasId;
+}
+}
+
+/**
+ * Get the NAS-IP-Address based on the current wan address
+ *
+ * Use functions in interfaces.inc to find this out
+ *
+ */
+if (!function_exists("getNasIP")) {
+function getNasIP() {
+ $nasIp = get_interface_ip();
+ if (!$nasIp) {
+ $nasIp = "0.0.0.0";
+ }
+ return $nasIp;
+}
+}
+/* setup syslog logging */
+openlog("openvpn", LOG_ODELAY, LOG_AUTH);
+
+if (isset($_GET['username'])) {
+ $authmodes = explode(",", $_GET['authcfg']);
+ $username = base64_decode(str_replace('%3D', '=', $_GET['username']));
+ $password = base64_decode(str_replace('%3D', '=', $_GET['password']));
+ $common_name = $_GET['cn'];
+ $modeid = $_GET['modeid'];
+ $strictusercn = $_GET['strictcn'] == "false" ? false : true;
+} else {
+ /* read data from environment */
+ $username = getenv("username");
+ $password = getenv("password");
+ $common_name = getenv("common_name");
+}
+
+if (!$username || !$password) {
+ syslog(LOG_ERR, "invalid user authentication environment");
+ if (isset($_GET['username'])) {
+ echo "FAILED";
+ closelog();
+ return;
+ } else {
+ closelog();
+ return (-1);
+ }
+}
+
+/* Replaced by a sed with proper variables used below(ldap parameters). */
+//<template>
+
+if (file_exists("{$g['varetc_path']}/openvpn/{$modeid}.ca")) {
+ putenv("LDAPTLS_CACERT={$g['varetc_path']}/openvpn/{$modeid}.ca");
+ putenv("LDAPTLS_REQCERT=never");
+}
+
+$authenticated = false;
+
+if (($strictusercn === true) && ($common_name != $username)) {
+ syslog(LOG_WARNING, "Username does not match certificate common name ({$username} != {$common_name}), access denied.\n");
+ if (isset($_GET['username'])) {
+ echo "FAILED";
+ closelog();
+ return;
+ } else {
+ closelog();
+ return (1);
+ }
+}
+
+if (!is_array($authmodes)) {
+ syslog(LOG_WARNING, "No authentication server has been selected to authenticate against. Denying authentication for user {$username}");
+ if (isset($_GET['username'])) {
+ echo "FAILED";
+ closelog();
+ return;
+ } else {
+ closelog();
+ return (1);
+ }
+}
+
+$attributes = array();
+foreach ($authmodes as $authmode) {
+ $authcfg = auth_get_authserver($authmode);
+ if (!$authcfg && $authmode != "local") {
+ continue;
+ }
+
+ $authenticated = authenticate_user($username, $password, $authcfg, $attributes);
+ if ($authenticated == true) {
+ break;
+ }
+}
+
+if ($authenticated == false) {
+ syslog(LOG_WARNING, "user '{$username}' could not authenticate.\n");
+ if (isset($_GET['username'])) {
+ echo "FAILED";
+ closelog();
+ return;
+ } else {
+ closelog();
+ return (-1);
+ }
+}
+
+if (file_exists("/etc/inc/openvpn.attributes.php")) {
+ include_once("/etc/inc/openvpn.attributes.php");
+}
+
+$content = "";
+if (is_array($attributes['dns-servers'])) {
+ foreach ($attributes['dns-servers'] as $dnssrv) {
+ if (is_ipaddr($dnssrv)) {
+ $content .= "push \"dhcp-option DNS {$dnssrv}\"\n";
+ }
+ }
+}
+if (is_array($attributes['routes'])) {
+ foreach ($attributes['routes'] as $route) {
+ $content .= "push \"route {$route} vpn_gateway\"\n";
+ }
+}
+
+if (isset($attributes['framed_ip'])) {
+/* XXX: only use when TAP windows driver >= 8.2.x */
+/* if (isset($attributes['framed_mask'])) {
+ $content .= "topology subnet\n";
+ $content .= "ifconfig-push {$attributes['framed_ip']} {$attributes['framed_mask']}";
+ } else {
+*/
+ $content .= "topology net30\n";
+ $content .= "ifconfig-push {$attributes['framed_ip']} ". long2ip((ip2long($attributes['framed_ip']) + 1));
+// }
+}
+
+if (!empty($content)) {
+ @file_put_contents("{$g['tmp_path']}/{$username}", $content);
+}
+
+syslog(LOG_NOTICE, "user '{$username}' authenticated\n");
+closelog();
+
+if (isset($_GET['username'])) {
+ echo "OK";
+} else {
+ return (0);
+}
+
+?>
OpenPOWER on IntegriCloud