From 46bc6e545a17e77202aaf01ec0cd8d5a46567525 Mon Sep 17 00:00:00 2001
From: Renato Botelho <renato@netgate.com>
Date: Tue, 25 Aug 2015 08:08:24 -0300
Subject: Move main pfSense content to src/

---
 src/etc/inc/openvpn.auth-user.php | 213 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 213 insertions(+)
 create mode 100644 src/etc/inc/openvpn.auth-user.php

(limited to 'src/etc/inc/openvpn.auth-user.php')

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 Luçi
+	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);
+}
+
+?>
-- 
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