1 |
ec920231
|
Scott Ullrich
|
<?php
|
2 |
5b237745
|
Scott Ullrich
|
/*
|
3 |
6e865a74
|
Scott Ullrich
|
index.php
|
4 |
|
|
part of m0n0wall (http://m0n0.ch/wall)
|
5 |
|
|
|
6 |
|
|
Copyright (C) 2003-2005 Manuel Kasper <mk@neon1.net>.
|
7 |
5b237745
|
Scott Ullrich
|
All rights reserved.
|
8 |
ec920231
|
Scott Ullrich
|
|
9 |
5b237745
|
Scott Ullrich
|
Redistribution and use in source and binary forms, with or without
|
10 |
|
|
modification, are permitted provided that the following conditions are met:
|
11 |
ec920231
|
Scott Ullrich
|
|
12 |
5b237745
|
Scott Ullrich
|
1. Redistributions of source code must retain the above copyright notice,
|
13 |
|
|
this list of conditions and the following disclaimer.
|
14 |
ec920231
|
Scott Ullrich
|
|
15 |
5b237745
|
Scott Ullrich
|
2. Redistributions in binary form must reproduce the above copyright
|
16 |
|
|
notice, this list of conditions and the following disclaimer in the
|
17 |
|
|
documentation and/or other materials provided with the distribution.
|
18 |
ec920231
|
Scott Ullrich
|
|
19 |
5b237745
|
Scott Ullrich
|
THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
|
20 |
|
|
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
|
21 |
|
|
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
22 |
|
|
AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
|
23 |
|
|
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
24 |
|
|
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
25 |
|
|
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
26 |
|
|
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
27 |
|
|
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
28 |
|
|
POSSIBILITY OF SUCH DAMAGE.
|
29 |
|
|
*/
|
30 |
|
|
|
31 |
|
|
require("globals.inc");
|
32 |
|
|
require("util.inc");
|
33 |
|
|
require("config.inc");
|
34 |
6e865a74
|
Scott Ullrich
|
require("radius_authentication.inc");
|
35 |
|
|
require("radius_accounting.inc");
|
36 |
5b237745
|
Scott Ullrich
|
|
37 |
|
|
header("Expires: 0");
|
38 |
|
|
header("Cache-Control: no-store, no-cache, must-revalidate");
|
39 |
|
|
header("Cache-Control: post-check=0, pre-check=0", false);
|
40 |
|
|
header("Pragma: no-cache");
|
41 |
|
|
|
42 |
|
|
$orig_host = $_ENV['HTTP_HOST'];
|
43 |
eb0f441c
|
Scott Ullrich
|
$orig_request = $_GET['redirurl'];
|
44 |
5b237745
|
Scott Ullrich
|
$lockfile = "{$g['varrun_path']}/captiveportal.lock";
|
45 |
6fa4bdc6
|
Scott Ullrich
|
$clientip = $_SERVER['REMOTE_ADDR'];
|
46 |
5b237745
|
Scott Ullrich
|
|
47 |
|
|
if (!$clientip) {
|
48 |
|
|
/* not good - bail out */
|
49 |
|
|
exit;
|
50 |
|
|
}
|
51 |
|
|
|
52 |
|
|
/* find MAC address for client */
|
53 |
|
|
$clientmac = arp_get_mac_by_ip($clientip);
|
54 |
|
|
if (!$clientmac && !isset($config['captiveportal']['nomacfilter'])) {
|
55 |
|
|
/* unable to find MAC address - shouldn't happen! - bail out */
|
56 |
|
|
exit;
|
57 |
|
|
}
|
58 |
|
|
|
59 |
6e865a74
|
Scott Ullrich
|
if ($clientmac && portal_mac_fixed($clientmac)) {
|
60 |
|
|
/* punch hole in ipfw for pass thru mac addresses */
|
61 |
f8dea008
|
Scott Ullrich
|
portal_allow($clientip, $clientmac, "unauthenticated");
|
62 |
5b237745
|
Scott Ullrich
|
|
63 |
|
|
} else if ($_POST['accept'] && file_exists("{$g['vardb_path']}/captiveportal_radius.db")) {
|
64 |
|
|
|
65 |
|
|
/* authenticate against radius server */
|
66 |
|
|
$radiusservers = captiveportal_get_radius_servers();
|
67 |
ec920231
|
Scott Ullrich
|
|
68 |
5b237745
|
Scott Ullrich
|
if ($_POST['auth_user'] && $_POST['auth_pass']) {
|
69 |
|
|
$auth_val = RADIUS_AUTHENTICATION($_POST['auth_user'],
|
70 |
|
|
$_POST['auth_pass'],
|
71 |
|
|
$radiusservers[0]['ipaddr'],
|
72 |
|
|
$radiusservers[0]['port'],
|
73 |
|
|
$radiusservers[0]['key']);
|
74 |
|
|
if ($auth_val == 2) {
|
75 |
6e865a74
|
Scott Ullrich
|
captiveportal_logportalauth($_POST['auth_user'],$clientmac,$clientip,"LOGIN");
|
76 |
|
|
$sessionid = portal_allow($clientip, $clientmac, $_POST['auth_user'], $_POST['auth_pass']);
|
77 |
5b237745
|
Scott Ullrich
|
if (isset($config['captiveportal']['radacct_enable']) && isset($radiusservers[0])) {
|
78 |
|
|
$auth_val = RADIUS_ACCOUNTING_START($_POST['auth_user'],
|
79 |
|
|
$sessionid,
|
80 |
|
|
$radiusservers[0]['ipaddr'],
|
81 |
|
|
$radiusservers[0]['acctport'],
|
82 |
7faeda46
|
Scott Ullrich
|
$radiusservers[0]['key'],
|
83 |
|
|
$clientip);
|
84 |
5b237745
|
Scott Ullrich
|
}
|
85 |
|
|
} else {
|
86 |
6e865a74
|
Scott Ullrich
|
captiveportal_logportalauth($_POST['auth_user'],$clientmac,$clientip,"FAILURE");
|
87 |
5b237745
|
Scott Ullrich
|
readfile("{$g['varetc_path']}/captiveportal-error.html");
|
88 |
|
|
}
|
89 |
|
|
} else {
|
90 |
|
|
readfile("{$g['varetc_path']}/captiveportal-error.html");
|
91 |
|
|
}
|
92 |
6e865a74
|
Scott Ullrich
|
|
93 |
|
|
} else if ($_POST['accept'] && $config['captiveportal']['auth_method'] == "local") {
|
94 |
5b237745
|
Scott Ullrich
|
|
95 |
7faeda46
|
Scott Ullrich
|
//check against local usermanager
|
96 |
6e865a74
|
Scott Ullrich
|
$userdb = &$config['captiveportal']['user'];
|
97 |
|
|
|
98 |
|
|
$loginok = false;
|
99 |
|
|
|
100 |
7faeda46
|
Scott Ullrich
|
//erase expired accounts
|
101 |
6e865a74
|
Scott Ullrich
|
if (is_array($userdb)) {
|
102 |
|
|
$moddb = false;
|
103 |
|
|
for ($i = 0; $i < count($userdb); $i++) {
|
104 |
|
|
if ($userdb[$i]['expirationdate'] && (strtotime("-1 day") > strtotime($userdb[$i]['expirationdate']))) {
|
105 |
|
|
unset($userdb[$i]);
|
106 |
|
|
$moddb = true;
|
107 |
|
|
}
|
108 |
|
|
}
|
109 |
|
|
if ($moddb)
|
110 |
|
|
write_config();
|
111 |
|
|
|
112 |
|
|
$userdb = &$config['captiveportal']['user'];
|
113 |
|
|
|
114 |
|
|
for ($i = 0; $i < count($userdb); $i++) {
|
115 |
|
|
if (($userdb[$i]['name'] == $_POST['auth_user']) && ($userdb[$i]['password'] == md5($_POST['auth_pass']))) {
|
116 |
|
|
$loginok = true;
|
117 |
|
|
break;
|
118 |
|
|
}
|
119 |
|
|
}
|
120 |
7faeda46
|
Scott Ullrich
|
}
|
121 |
6e865a74
|
Scott Ullrich
|
|
122 |
|
|
if ($loginok){
|
123 |
|
|
captiveportal_logportalauth($_POST['auth_user'],$clientmac,$clientip,"LOGIN");
|
124 |
|
|
portal_allow($clientip, $clientmac,$_POST['auth_user'],0,0);
|
125 |
7faeda46
|
Scott Ullrich
|
} else {
|
126 |
6e865a74
|
Scott Ullrich
|
captiveportal_logportalauth($_POST['auth_user'],$clientmac,$clientip,"FAILURE");
|
127 |
7faeda46
|
Scott Ullrich
|
readfile("{$g['varetc_path']}/captiveportal-error.html");
|
128 |
|
|
}
|
129 |
5b237745
|
Scott Ullrich
|
} else if ($_POST['accept'] && $clientip) {
|
130 |
f8dea008
|
Scott Ullrich
|
portal_allow($clientip, $clientmac, "unauthenticated");
|
131 |
5b237745
|
Scott Ullrich
|
} else if ($_POST['logout_id']) {
|
132 |
|
|
disconnect_client($_POST['logout_id']);
|
133 |
|
|
echo <<<EOD
|
134 |
|
|
<HTML>
|
135 |
|
|
<HEAD><TITLE>Disconnecting...</TITLE></HEAD>
|
136 |
|
|
<BODY BGCOLOR="#435370">
|
137 |
|
|
<SPAN STYLE="color: #ffffff; font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif; font-size: 11px;">
|
138 |
f0a12c87
|
Scott Ullrich
|
<B>You've been disconnected.</B>
|
139 |
5b237745
|
Scott Ullrich
|
</SPAN>
|
140 |
|
|
<SCRIPT LANGUAGE="JavaScript">
|
141 |
|
|
<!--
|
142 |
|
|
setTimeout('window.close();',5000) ;
|
143 |
|
|
-->
|
144 |
|
|
</SCRIPT>
|
145 |
|
|
</BODY>
|
146 |
|
|
</HTML>
|
147 |
|
|
|
148 |
|
|
EOD;
|
149 |
|
|
} else if (($_ENV['SERVER_PORT'] != 8001) && isset($config['captiveportal']['httpslogin'])) {
|
150 |
|
|
/* redirect to HTTPS login page */
|
151 |
|
|
header("Location: https://{$config['captiveportal']['httpsname']}:8001/?redirurl=" . urlencode("http://{$orig_host}{$orig_request}"));
|
152 |
|
|
} else {
|
153 |
|
|
/* display captive portal page */
|
154 |
|
|
$htmltext = file_get_contents("{$g['varetc_path']}/captiveportal.html");
|
155 |
ec920231
|
Scott Ullrich
|
|
156 |
5b237745
|
Scott Ullrich
|
/* substitute variables */
|
157 |
|
|
if (isset($config['captiveportal']['httpslogin']))
|
158 |
|
|
$htmltext = str_replace("\$PORTAL_ACTION\$", "https://{$config['captiveportal']['httpsname']}:8001/", $htmltext);
|
159 |
|
|
else
|
160 |
6e865a74
|
Scott Ullrich
|
$htmltext = str_replace("\$PORTAL_ACTION\$", "http://{$config['interfaces'][$config['captiveportal']['interface']]['ipaddr']}:8000/", $htmltext);
|
161 |
ec920231
|
Scott Ullrich
|
|
162 |
5b237745
|
Scott Ullrich
|
if (preg_match("/redirurl=(.*)/", $orig_request, $matches))
|
163 |
|
|
$redirurl = urldecode($matches[1]);
|
164 |
|
|
else
|
165 |
|
|
$redirurl = "http://{$orig_host}{$orig_request}";
|
166 |
|
|
$htmltext = str_replace("\$PORTAL_REDIRURL\$", htmlspecialchars($redirurl), $htmltext);
|
167 |
08d82407
|
Scott Ullrich
|
|
168 |
5b237745
|
Scott Ullrich
|
echo $htmltext;
|
169 |
|
|
}
|
170 |
|
|
|
171 |
eb0f441c
|
Scott Ullrich
|
|
172 |
5b237745
|
Scott Ullrich
|
exit;
|
173 |
|
|
|
174 |
|
|
function portal_mac_fixed($clientmac) {
|
175 |
|
|
global $g ;
|
176 |
ec920231
|
Scott Ullrich
|
|
177 |
5b237745
|
Scott Ullrich
|
/* open captive portal mac db */
|
178 |
|
|
if (file_exists("{$g['vardb_path']}/captiveportal_mac.db")) {
|
179 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal_mac.db","r") ;
|
180 |
|
|
if (!$fd) {
|
181 |
|
|
return FALSE;
|
182 |
|
|
}
|
183 |
|
|
while (!feof($fd)) {
|
184 |
|
|
$mac = trim(fgets($fd)) ;
|
185 |
|
|
if(strcasecmp($clientmac, $mac) == 0) {
|
186 |
|
|
fclose($fd) ;
|
187 |
|
|
return TRUE ;
|
188 |
|
|
}
|
189 |
|
|
}
|
190 |
|
|
fclose($fd) ;
|
191 |
|
|
}
|
192 |
|
|
return FALSE ;
|
193 |
ec920231
|
Scott Ullrich
|
}
|
194 |
5b237745
|
Scott Ullrich
|
|
195 |
6e865a74
|
Scott Ullrich
|
function portal_allow($clientip,$clientmac,$clientuser,$password = "") {
|
196 |
5b237745
|
Scott Ullrich
|
|
197 |
|
|
global $orig_host, $orig_request, $g, $config;
|
198 |
|
|
|
199 |
|
|
/* user has accepted AUP - let him in */
|
200 |
|
|
portal_lock();
|
201 |
6e865a74
|
Scott Ullrich
|
|
202 |
|
|
/* get next ipfw rule number */
|
203 |
|
|
if (file_exists("{$g['vardb_path']}/captiveportal.nextrule"))
|
204 |
|
|
$ruleno = trim(file_get_contents("{$g['vardb_path']}/captiveportal.nextrule"));
|
205 |
|
|
if (!$ruleno)
|
206 |
|
|
$ruleno = 10000; /* first rule number */
|
207 |
5b237745
|
Scott Ullrich
|
|
208 |
6e865a74
|
Scott Ullrich
|
$saved_ruleno = $ruleno;
|
209 |
ec920231
|
Scott Ullrich
|
|
210 |
5b237745
|
Scott Ullrich
|
/* generate unique session ID */
|
211 |
|
|
$tod = gettimeofday();
|
212 |
|
|
$sessionid = substr(md5(mt_rand() . $tod['sec'] . $tod['usec'] . $clientip . $clientmac), 0, 16);
|
213 |
6e865a74
|
Scott Ullrich
|
|
214 |
|
|
/* add ipfw rules for layer 3 */
|
215 |
|
|
exec("/sbin/ipfw add $ruleno set 2 skipto 50000 ip from $clientip to any in");
|
216 |
|
|
exec("/sbin/ipfw add $ruleno set 2 skipto 50000 ip from any to $clientip out");
|
217 |
|
|
|
218 |
|
|
/* add ipfw rules for layer 2 */
|
219 |
|
|
if (!isset($config['captiveportal']['nomacfilter'])) {
|
220 |
|
|
$l2ruleno = $ruleno + 10000;
|
221 |
|
|
exec("/sbin/ipfw add $l2ruleno set 3 deny all from $clientip to any not MAC any $clientmac layer2 in");
|
222 |
|
|
exec("/sbin/ipfw add $l2ruleno set 3 deny all from any to $clientip not MAC $clientmac any layer2 out");
|
223 |
|
|
}
|
224 |
|
|
|
225 |
5b237745
|
Scott Ullrich
|
/* read in client database */
|
226 |
|
|
$cpdb = array();
|
227 |
|
|
|
228 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "r");
|
229 |
|
|
if ($fd) {
|
230 |
|
|
while (!feof($fd)) {
|
231 |
|
|
$line = trim(fgets($fd)) ;
|
232 |
|
|
if($line) {
|
233 |
|
|
$cpdb[] = explode(",",$line);
|
234 |
ec920231
|
Scott Ullrich
|
}
|
235 |
5b237745
|
Scott Ullrich
|
}
|
236 |
|
|
fclose($fd);
|
237 |
|
|
}
|
238 |
ec920231
|
Scott Ullrich
|
|
239 |
5b237745
|
Scott Ullrich
|
$radiusservers = captiveportal_get_radius_servers();
|
240 |
|
|
|
241 |
|
|
/* find an existing entry and delete it */
|
242 |
|
|
for ($i = 0; $i < count($cpdb); $i++) {
|
243 |
|
|
if(!strcasecmp($cpdb[$i][2],$clientip)) {
|
244 |
|
|
if(isset($config['captiveportal']['radacct_enable']) && isset($radiusservers[0])) {
|
245 |
|
|
RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
|
246 |
|
|
$cpdb[$i][4], // username
|
247 |
|
|
$cpdb[$i][5], // sessionid
|
248 |
|
|
$cpdb[$i][0], // start time
|
249 |
|
|
$radiusservers[0]['ipaddr'],
|
250 |
|
|
$radiusservers[0]['acctport'],
|
251 |
7faeda46
|
Scott Ullrich
|
$radiusservers[0]['key'],
|
252 |
|
|
$clientip);
|
253 |
|
|
}
|
254 |
6e865a74
|
Scott Ullrich
|
mwexec("/sbin/ipfw delete " . $cpdb[$i][1] . " " . ($cpdb[$i][1]+10000));
|
255 |
5b237745
|
Scott Ullrich
|
unset($cpdb[$i]);
|
256 |
|
|
break;
|
257 |
|
|
}
|
258 |
ec920231
|
Scott Ullrich
|
}
|
259 |
5b237745
|
Scott Ullrich
|
|
260 |
|
|
/* rewrite information to database */
|
261 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "w");
|
262 |
|
|
if ($fd) {
|
263 |
|
|
foreach ($cpdb as $cpent) {
|
264 |
|
|
fwrite($fd, join(",", $cpent) . "\n");
|
265 |
|
|
}
|
266 |
|
|
/* write in this new entry */
|
267 |
6e865a74
|
Scott Ullrich
|
/* encode password in Base64 just in case it contains commas */
|
268 |
|
|
$bpassword = base64_encode($password);
|
269 |
|
|
fwrite($fd, time().",{$ruleno},{$clientip},{$clientmac},{$clientuser},{$sessionid},{$bpassword}\n") ;
|
270 |
5b237745
|
Scott Ullrich
|
fclose($fd);
|
271 |
|
|
}
|
272 |
ec920231
|
Scott Ullrich
|
|
273 |
5b237745
|
Scott Ullrich
|
/* write next rule number */
|
274 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.nextrule", "w");
|
275 |
|
|
if ($fd) {
|
276 |
|
|
$ruleno++;
|
277 |
|
|
if ($ruleno > 19899)
|
278 |
|
|
$ruleno = 10000; /* wrap around */
|
279 |
|
|
fwrite($fd, $ruleno);
|
280 |
|
|
fclose($fd);
|
281 |
|
|
}
|
282 |
ec920231
|
Scott Ullrich
|
|
283 |
5b237745
|
Scott Ullrich
|
portal_unlock();
|
284 |
ec920231
|
Scott Ullrich
|
|
285 |
5b237745
|
Scott Ullrich
|
/* redirect user to desired destination */
|
286 |
|
|
if ($config['captiveportal']['redirurl'])
|
287 |
|
|
$redirurl = $config['captiveportal']['redirurl'];
|
288 |
|
|
else if ($_POST['redirurl'])
|
289 |
|
|
$redirurl = $_POST['redirurl'];
|
290 |
|
|
else
|
291 |
|
|
$redirurl = "http://{$orig_host}{$orig_request}";
|
292 |
ec920231
|
Scott Ullrich
|
|
293 |
5b237745
|
Scott Ullrich
|
if(isset($config['captiveportal']['logoutwin_enable'])) {
|
294 |
ec920231
|
Scott Ullrich
|
|
295 |
5b237745
|
Scott Ullrich
|
if (isset($config['captiveportal']['httpslogin']))
|
296 |
|
|
$logouturl = "https://{$config['captiveportal']['httpsname']}:8001/";
|
297 |
|
|
else
|
298 |
|
|
$logouturl = "http://{$config['interfaces'][$config['captiveportal']['interface']]['ipaddr']}:8000/";
|
299 |
ec920231
|
Scott Ullrich
|
|
300 |
5b237745
|
Scott Ullrich
|
echo <<<EOD
|
301 |
|
|
<HTML>
|
302 |
|
|
<HEAD><TITLE>Redirecting...</TITLE></HEAD>
|
303 |
|
|
<BODY>
|
304 |
|
|
<SPAN STYLE="font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif; font-size: 11px;">
|
305 |
|
|
<B>Redirecting to <A HREF="{$redirurl}">{$redirurl}</A>...</B>
|
306 |
|
|
</SPAN>
|
307 |
|
|
<SCRIPT LANGUAGE="JavaScript">
|
308 |
|
|
<!--
|
309 |
|
|
LogoutWin = window.open('', 'Logout', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=256,height=64');
|
310 |
|
|
if (LogoutWin) {
|
311 |
|
|
LogoutWin.document.write('<HTML>');
|
312 |
|
|
LogoutWin.document.write('<HEAD><TITLE>Logout</TITLE></HEAD>') ;
|
313 |
|
|
LogoutWin.document.write('<BODY BGCOLOR="#435370">');
|
314 |
|
|
LogoutWin.document.write('<DIV ALIGN="center" STYLE="color: #ffffff; font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif; font-size: 11px;">') ;
|
315 |
|
|
LogoutWin.document.write('<B>Click the button below to disconnect</B><P>');
|
316 |
|
|
LogoutWin.document.write('<FORM METHOD="POST" ACTION="{$logouturl}">');
|
317 |
|
|
LogoutWin.document.write('<INPUT NAME="logout_id" TYPE="hidden" VALUE="{$sessionid}">');
|
318 |
|
|
LogoutWin.document.write('<INPUT NAME="logout" TYPE="submit" VALUE="Logout">');
|
319 |
|
|
LogoutWin.document.write('</FORM>');
|
320 |
|
|
LogoutWin.document.write('</DIV></BODY>');
|
321 |
|
|
LogoutWin.document.write('</HTML>');
|
322 |
|
|
LogoutWin.document.close();
|
323 |
|
|
}
|
324 |
|
|
|
325 |
|
|
document.location.href="{$redirurl}";
|
326 |
|
|
-->
|
327 |
|
|
</SCRIPT>
|
328 |
|
|
</BODY>
|
329 |
|
|
</HTML>
|
330 |
|
|
|
331 |
|
|
EOD;
|
332 |
|
|
} else {
|
333 |
ec920231
|
Scott Ullrich
|
header("Location: " . $redirurl);
|
334 |
5b237745
|
Scott Ullrich
|
}
|
335 |
ec920231
|
Scott Ullrich
|
|
336 |
5b237745
|
Scott Ullrich
|
return $sessionid;
|
337 |
|
|
}
|
338 |
|
|
|
339 |
|
|
/* read RADIUS servers into array */
|
340 |
|
|
function captiveportal_get_radius_servers() {
|
341 |
ec920231
|
Scott Ullrich
|
|
342 |
5b237745
|
Scott Ullrich
|
global $g;
|
343 |
ec920231
|
Scott Ullrich
|
|
344 |
5b237745
|
Scott Ullrich
|
if (file_exists("{$g['vardb_path']}/captiveportal_radius.db")) {
|
345 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal_radius.db","r");
|
346 |
|
|
if ($fd) {
|
347 |
|
|
$radiusservers = array();
|
348 |
|
|
while (!feof($fd)) {
|
349 |
|
|
$line = trim(fgets($fd));
|
350 |
|
|
if ($line) {
|
351 |
|
|
$radsrv = array();
|
352 |
|
|
list($radsrv['ipaddr'],$radsrv['port'],$radsrv['acctport'],$radsrv['key']) = explode(",",$line);
|
353 |
|
|
$radiusservers[] = $radsrv;
|
354 |
|
|
}
|
355 |
|
|
}
|
356 |
|
|
fclose($fd);
|
357 |
ec920231
|
Scott Ullrich
|
|
358 |
5b237745
|
Scott Ullrich
|
return $radiusservers;
|
359 |
|
|
}
|
360 |
|
|
}
|
361 |
ec920231
|
Scott Ullrich
|
|
362 |
5b237745
|
Scott Ullrich
|
return false;
|
363 |
|
|
}
|
364 |
|
|
|
365 |
|
|
/* lock captive portal information, decide that the lock file is stale after
|
366 |
|
|
10 seconds */
|
367 |
|
|
function portal_lock() {
|
368 |
ec920231
|
Scott Ullrich
|
|
369 |
5b237745
|
Scott Ullrich
|
global $lockfile;
|
370 |
ec920231
|
Scott Ullrich
|
|
371 |
5b237745
|
Scott Ullrich
|
$n = 0;
|
372 |
|
|
while ($n < 10) {
|
373 |
|
|
/* open the lock file in append mode to avoid race condition */
|
374 |
|
|
if ($fd = @fopen($lockfile, "x")) {
|
375 |
|
|
/* succeeded */
|
376 |
|
|
fclose($fd);
|
377 |
|
|
return;
|
378 |
|
|
} else {
|
379 |
|
|
/* file locked, wait and try again */
|
380 |
|
|
sleep(1);
|
381 |
|
|
$n++;
|
382 |
|
|
}
|
383 |
|
|
}
|
384 |
|
|
}
|
385 |
|
|
|
386 |
|
|
/* unlock captive portal information file */
|
387 |
|
|
function portal_unlock() {
|
388 |
ec920231
|
Scott Ullrich
|
|
389 |
5b237745
|
Scott Ullrich
|
global $lockfile;
|
390 |
ec920231
|
Scott Ullrich
|
|
391 |
5b237745
|
Scott Ullrich
|
if (file_exists($lockfile))
|
392 |
|
|
unlink($lockfile);
|
393 |
|
|
}
|
394 |
|
|
|
395 |
|
|
/* remove a single client by session ID
|
396 |
|
|
by Dinesh Nair
|
397 |
|
|
*/
|
398 |
|
|
function disconnect_client($sessionid) {
|
399 |
ec920231
|
Scott Ullrich
|
|
400 |
5b237745
|
Scott Ullrich
|
global $g, $config;
|
401 |
ec920231
|
Scott Ullrich
|
|
402 |
5b237745
|
Scott Ullrich
|
portal_lock();
|
403 |
ec920231
|
Scott Ullrich
|
|
404 |
5b237745
|
Scott Ullrich
|
/* read database */
|
405 |
|
|
$cpdb = array() ;
|
406 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "r");
|
407 |
|
|
if ($fd) {
|
408 |
|
|
while (!feof($fd)) {
|
409 |
|
|
$line = trim(fgets($fd)) ;
|
410 |
|
|
if($line) {
|
411 |
|
|
$cpdb[] = explode(",",$line);
|
412 |
ec920231
|
Scott Ullrich
|
}
|
413 |
5b237745
|
Scott Ullrich
|
}
|
414 |
|
|
fclose($fd);
|
415 |
|
|
}
|
416 |
ec920231
|
Scott Ullrich
|
|
417 |
5b237745
|
Scott Ullrich
|
$radiusservers = captiveportal_get_radius_servers();
|
418 |
ec920231
|
Scott Ullrich
|
|
419 |
|
|
/* find entry */
|
420 |
5b237745
|
Scott Ullrich
|
for ($i = 0; $i < count($cpdb); $i++) {
|
421 |
|
|
if ($cpdb[$i][5] == $sessionid) {
|
422 |
6e865a74
|
Scott Ullrich
|
/* this client needs to be deleted - remove ipfw rules */
|
423 |
5b237745
|
Scott Ullrich
|
if(isset($config['captiveportal']['radacct_enable']) && isset($radiusservers[0])) {
|
424 |
|
|
RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
|
425 |
|
|
$cpdb[$i][4], // username
|
426 |
|
|
$cpdb[$i][5], // sessionid
|
427 |
|
|
$cpdb[$i][0], // start time
|
428 |
|
|
$radiusservers[0]['ipaddr'],
|
429 |
|
|
$radiusservers[0]['acctport'],
|
430 |
7faeda46
|
Scott Ullrich
|
$radiusservers[0]['key'],
|
431 |
6e865a74
|
Scott Ullrich
|
$cpdb[$i][2]);
|
432 |
5b237745
|
Scott Ullrich
|
}
|
433 |
6e865a74
|
Scott Ullrich
|
mwexec("/sbin/ipfw delete " . $cpdb[$i][1] . " " . ($cpdb[$i][1]+10000));
|
434 |
|
|
captiveportal_logportalauth($cpdb[$i][4],$cpdb[$i][3],$cpdb[$i][2],"LOGOUT");
|
435 |
5b237745
|
Scott Ullrich
|
unset($cpdb[$i]);
|
436 |
|
|
break;
|
437 |
|
|
}
|
438 |
|
|
}
|
439 |
ec920231
|
Scott Ullrich
|
|
440 |
5b237745
|
Scott Ullrich
|
/* rewrite information to database */
|
441 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "w");
|
442 |
|
|
if ($fd) {
|
443 |
|
|
foreach ($cpdb as $cpent) {
|
444 |
|
|
fwrite($fd, join(",", $cpent) . "\n");
|
445 |
|
|
}
|
446 |
|
|
fclose($fd);
|
447 |
|
|
}
|
448 |
ec920231
|
Scott Ullrich
|
|
449 |
5b237745
|
Scott Ullrich
|
portal_unlock();
|
450 |
|
|
}
|
451 |
6e865a74
|
Scott Ullrich
|
|
452 |
|
|
/* log successful captive portal authentication to syslog */
|
453 |
|
|
/* part of this code from php.net */
|
454 |
|
|
function captiveportal_logportalauth($user,$mac,$ip,$status) {
|
455 |
|
|
define_syslog_variables();
|
456 |
|
|
openlog("logportalauth", LOG_PID, LOG_LOCAL4);
|
457 |
|
|
// Log it
|
458 |
|
|
syslog(LOG_INFO, "$status: $user, $mac, $ip");
|
459 |
|
|
closelog();
|
460 |
|
|
}
|
461 |
|
|
|
462 |
|
|
?>
|