|
1
|
#!/usr/local/bin/php-cgi -f
|
|
2
|
<?php
|
|
3
|
/*
|
|
4
|
ipsec.auth-user.php
|
|
5
|
|
|
6
|
Copyright (C) 2008 Shrew Soft Inc
|
|
7
|
Copyright (C) 2010 Ermal Luçi
|
|
8
|
Copyright (C) 2013-2015 Electric Sheep Fencing, LP
|
|
9
|
All rights reserved.
|
|
10
|
|
|
11
|
Redistribution and use in source and binary forms, with or without
|
|
12
|
modification, are permitted provided that the following conditions are met:
|
|
13
|
|
|
14
|
1. Redistributions of source code must retain the above copyright notice,
|
|
15
|
this list of conditions and the following disclaimer.
|
|
16
|
|
|
17
|
2. Redistributions in binary form must reproduce the above copyright
|
|
18
|
notice, this list of conditions and the following disclaimer in the
|
|
19
|
documentation and/or other materials provided with the distribution.
|
|
20
|
|
|
21
|
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
|
22
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
23
|
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
24
|
AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
|
25
|
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
26
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
27
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
28
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
29
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
30
|
POSSIBILITY OF SUCH DAMAGE.
|
|
31
|
|
|
32
|
*/
|
|
33
|
/*
|
|
34
|
* ipsec calls this script to authenticate a user
|
|
35
|
* based on a username and password. We lookup these
|
|
36
|
* in our config.xml file and check the credentials.
|
|
37
|
*/
|
|
38
|
|
|
39
|
require_once("globals.inc");
|
|
40
|
require_once("config.inc");
|
|
41
|
require_once("radius.inc");
|
|
42
|
require_once("auth.inc");
|
|
43
|
require_once("interfaces.inc");
|
|
44
|
|
|
45
|
/**
|
|
46
|
* Get the NAS-Identifier
|
|
47
|
*
|
|
48
|
* We will use our local hostname to make up the nas_id
|
|
49
|
*/
|
|
50
|
if (!function_exists("getNasID")) {
|
|
51
|
function getNasID() {
|
|
52
|
global $g;
|
|
53
|
|
|
54
|
$nasId = gethostname();
|
|
55
|
if (empty($nasId)) {
|
|
56
|
$nasId = $g['product_name'];
|
|
57
|
}
|
|
58
|
return $nasId;
|
|
59
|
}
|
|
60
|
}
|
|
61
|
|
|
62
|
/**
|
|
63
|
* Get the NAS-IP-Address based on the current wan address
|
|
64
|
*
|
|
65
|
* Use functions in interfaces.inc to find this out
|
|
66
|
*
|
|
67
|
*/
|
|
68
|
if (!function_exists("getNasIP")) {
|
|
69
|
function getNasIP() {
|
|
70
|
$nasIp = get_interface_ip();
|
|
71
|
if (!$nasIp) {
|
|
72
|
$nasIp = "0.0.0.0";
|
|
73
|
}
|
|
74
|
return $nasIp;
|
|
75
|
}
|
|
76
|
}
|
|
77
|
/* setup syslog logging */
|
|
78
|
openlog("charon", LOG_ODELAY, LOG_AUTH);
|
|
79
|
|
|
80
|
if (isset($_GET['username'])) {
|
|
81
|
$authmodes = explode(",", $_GET['authcfg']);
|
|
82
|
$username = $_GET['username'];
|
|
83
|
$password = $_GET['password'];
|
|
84
|
$common_name = $_GET['cn'];
|
|
85
|
} else {
|
|
86
|
/* read data from environment */
|
|
87
|
$username = getenv("username");
|
|
88
|
$password = getenv("password");
|
|
89
|
$common_name = getenv("common_name");
|
|
90
|
$authmodes = explode(",", getenv("authcfg"));
|
|
91
|
}
|
|
92
|
|
|
93
|
if (!$username || !$password) {
|
|
94
|
syslog(LOG_ERR, "invalid user authentication environment");
|
|
95
|
if (isset($_GET['username'])) {
|
|
96
|
echo "FAILED";
|
|
97
|
closelog();
|
|
98
|
return;
|
|
99
|
} else {
|
|
100
|
closelog();
|
|
101
|
exit (-1);
|
|
102
|
}
|
|
103
|
}
|
|
104
|
|
|
105
|
$authenticated = false;
|
|
106
|
|
|
107
|
if (($strictusercn === true) && ($common_name != $username)) {
|
|
108
|
syslog(LOG_WARNING, "Username does not match certificate common name ({$username} != {$common_name}), access denied.\n");
|
|
109
|
if (isset($_GET['username'])) {
|
|
110
|
echo "FAILED";
|
|
111
|
closelog();
|
|
112
|
return;
|
|
113
|
} else {
|
|
114
|
closelog();
|
|
115
|
exit (1);
|
|
116
|
}
|
|
117
|
}
|
|
118
|
|
|
119
|
$attributes = array();
|
|
120
|
foreach ($authmodes as $authmode) {
|
|
121
|
$authcfg = auth_get_authserver($authmode);
|
|
122
|
if (!$authcfg && $authmode != "Local Database") {
|
|
123
|
continue;
|
|
124
|
}
|
|
125
|
|
|
126
|
$authenticated = authenticate_user($username, $password, $authcfg, $attributes);
|
|
127
|
if ($authenticated == true) {
|
|
128
|
if ($authmode == "Local Database") {
|
|
129
|
$user = getUserEntry($username);
|
|
130
|
if (!is_array($user) || !userHasPrivilege($user, "user-ipsec-xauth-dialin")) {
|
|
131
|
$authenticated = false;
|
|
132
|
syslog(LOG_WARNING, "user '{$username}' cannot authenticate through IPsec since the required privileges are missing.\n");
|
|
133
|
continue;
|
|
134
|
}
|
|
135
|
}
|
|
136
|
break;
|
|
137
|
}
|
|
138
|
}
|
|
139
|
|
|
140
|
if ($authenticated == false) {
|
|
141
|
syslog(LOG_WARNING, "user '{$username}' could not authenticate.\n");
|
|
142
|
if (isset($_GET['username'])) {
|
|
143
|
echo "FAILED";
|
|
144
|
closelog();
|
|
145
|
return;
|
|
146
|
} else {
|
|
147
|
closelog();
|
|
148
|
exit (-1);
|
|
149
|
}
|
|
150
|
}
|
|
151
|
|
|
152
|
if (file_exists("/etc/inc/ipsec.attributes.php")) {
|
|
153
|
include_once("/etc/inc/ipsec.attributes.php");
|
|
154
|
}
|
|
155
|
|
|
156
|
syslog(LOG_NOTICE, "user '{$username}' authenticated\n");
|
|
157
|
closelog();
|
|
158
|
|
|
159
|
if (isset($_GET['username'])) {
|
|
160
|
echo "OK";
|
|
161
|
} else {
|
|
162
|
exit (0);
|
|
163
|
}
|
|
164
|
|
|
165
|
?>
|