1957 lines
63 KiB
PHP
1957 lines
63 KiB
PHP
<?php
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/*
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captiveportal.inc
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part of pfSense (http://www.pfSense.org)
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Copyright (C) 2004-2011 Scott Ullrich <sullrich@gmail.com>
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Copyright (C) 2009 Ermal Luçi <ermal.luci@gmail.com>
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Copyright (C) 2003-2006 Manuel Kasper <mk@neon1.net>.
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originally part of m0n0wall (http://m0n0.ch/wall)
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All rights reserved.
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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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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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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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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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This version of captiveportal.inc has been modified by Rob Parker
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<rob.parker@keycom.co.uk> to include changes for per-user bandwidth management
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via returned RADIUS attributes. This page has been modified to delete any
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added rules which may have been created by other per-user code (index.php, etc).
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These changes are (c) 2004 Keycom PLC.
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pfSense_BUILDER_BINARIES: /sbin/ipfw /sbin/sysctl /sbin/kldunload
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pfSense_BUILDER_BINARIES: /usr/local/sbin/lighttpd /usr/local/bin/minicron /sbin/pfctl
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pfSense_BUILDER_BINARIES: /bin/hostname /bin/cp
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pfSense_MODULE: captiveportal
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*/
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/* include all configuration functions */
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require_once("config.inc");
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require_once("functions.inc");
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require_once("filter.inc");
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require_once("radius.inc");
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require_once("voucher.inc");
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function get_default_captive_portal_html() {
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global $config, $g;
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// Detect if vouchers are being used and default to the voucher page
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if(isset($config['voucher']['enable'])) {
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$htmltext = <<<EOD
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<html>
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<body>
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<form method="post" action="\$PORTAL_ACTION\$">
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<input name="redirurl" type="hidden" value="\$PORTAL_REDIRURL\$">
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<center>
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<table cellpadding="6" cellspacing="0" width="550" height="380" style="border:1px solid #000000">
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<tr height="10" bgcolor="#990000">
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<td style="border-bottom:1px solid #000000">
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<font color='white'>
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<b>
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Guest Voucher code required to continue
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</b>
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</font>
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</td>
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</tr>
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<tr>
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<td>
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<div id="mainlevel">
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<center>
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<table width="100%" border="0" cellpadding="5" cellspacing="0">
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<tr>
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<td>
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<center>
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<div id="mainarea">
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<center>
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<table width="100%" border="0" cellpadding="5" cellspacing="5">
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<tr>
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<td>
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<div id="maindivarea">
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<center>
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<div id='statusbox'>
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<font color='red' face='arial' size='+1'>
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<b>
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\$PORTAL_MESSAGE\$
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</b>
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</font>
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</div>
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<p/>
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<div id='loginbox'>
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Enter Voucher Code:
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<input name="auth_voucher" type="text" style="border:1px dashed;" size="22">
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<input name="accept" type="submit" value="Continue">
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</div>
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</center>
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</div>
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</td>
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</tr>
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</table>
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</center>
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</div>
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</center>
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</td>
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</tr>
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</table>
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</center>
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</div>
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</td>
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</tr>
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</table>
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</center>
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</form>
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</body>
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</html>
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EOD;
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return $htmltext;
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}
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// Vouchers are not found, return the normal user/pass auth page
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$htmltext = <<<EOD
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<html>
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<body>
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<form method="post" action="\$PORTAL_ACTION\$">
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<input name="redirurl" type="hidden" value="\$PORTAL_REDIRURL\$">
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<center>
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<table cellpadding="6" cellspacing="0" width="550" height="380" style="border:1px solid #000000">
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<tr height="10" bgcolor="#990000">
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<td style="border-bottom:1px solid #000000">
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<font color='white'>
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<b>
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{$g['product_name']} captive portal
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</b>
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</font>
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</td>
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</tr>
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<tr>
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<td>
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<div id="mainlevel">
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<center>
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<table width="100%" border="0" cellpadding="5" cellspacing="0">
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<tr>
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<td>
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<center>
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<div id="mainarea">
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<center>
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<table width="100%" border="0" cellpadding="5" cellspacing="5">
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<tr>
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<td>
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<div id="maindivarea">
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<center>
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<div id='statusbox'>
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<font color='red' face='arial' size='+1'>
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<b>
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\$PORTAL_MESSAGE\$
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</b>
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</font>
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</div>
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<br/>
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<div id='loginbox'>
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<table>
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<tr><td colspan="2"><center>Welcome to the {$g['product_name']} Captive Portal!</td></tr>
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<tr><td> </td></tr>
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<tr><td align="right">Username:</td><td><input name="auth_user" type="text" style="border: 1px dashed;"></td></tr>
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<tr><td align="right">Password:</td><td><input name="auth_pass" type="password" style="border: 1px dashed;"></td></tr>
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<tr><td> </td></tr>
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<tr>
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<td colspan="2">
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<center><input name="accept" type="submit" value="Continue"></center>
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</td>
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</tr>
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</table>
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</div>
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</center>
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</div>
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</td>
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</tr>
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</table>
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</center>
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</div>
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</center>
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</td>
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</tr>
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</table>
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</center>
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</div>
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</td>
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</tr>
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</table>
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</center>
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</form>
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</body>
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</html>
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EOD;
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return $htmltext;
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}
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function captiveportal_configure() {
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global $config, $g;
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$captiveportallck = lock('captiveportal', LOCK_EX);
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if (isset($config['captiveportal']['enable'])) {
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if ($g['booting'])
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echo "Starting captive portal... ";
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else
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captiveportal_syslog("Restarting captive portal.");
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/* kill any running mini_httpd */
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killbypid("{$g['varrun_path']}/lighty-CaptivePortal.pid");
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killbypid("{$g['varrun_path']}/lighty-CaptivePortal-SSL.pid");
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/* remove old information */
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unlink_if_exists("{$g['vardb_path']}/captiveportal.db");
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unlink_if_exists("{$g['vardb_path']}/captiveportal_mac.db");
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unlink_if_exists("{$g['vardb_path']}/captiveportal_ip.db");
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unlink_if_exists("{$g['vardb_path']}/captiveportal_radius.db");
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/* setup new database in case someone tries to access the status -> captive portal page */
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touch("{$g['vardb_path']}/captiveportal.db");
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/* kill any running minicron */
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killbypid("{$g['varrun_path']}/cp_prunedb.pid");
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/* init ipfw rules */
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captiveportal_init_rules(true);
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/* stop accounting on all clients */
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captiveportal_radius_stop_all();
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/* initialize minicron interval value */
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$croninterval = $config['captiveportal']['croninterval'] ? $config['captiveportal']['croninterval'] : 60;
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/* double check if the $croninterval is numeric and at least 10 seconds. If not we set it to 60 to avoid problems */
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if ((!is_numeric($croninterval)) || ($croninterval < 10))
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$croninterval = 60;
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/* write portal page */
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if ($config['captiveportal']['page']['htmltext'])
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$htmltext = base64_decode($config['captiveportal']['page']['htmltext']);
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else {
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/* example/template page */
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$htmltext = get_default_captive_portal_html();
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}
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$fd = @fopen("{$g['varetc_path']}/captiveportal.html", "w");
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if ($fd) {
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// Special case handling. Convert so that we can pass this page
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// through the PHP interpreter later without clobbering the vars.
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$htmltext = str_replace("\$PORTAL_REDIRURL\$", "#PORTAL_REDIRURL#", $htmltext);
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$htmltext = str_replace("\$PORTAL_MESSAGE\$", "#PORTAL_MESSAGE#", $htmltext);
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$htmltext = str_replace("\$CLIENT_MAC\$", "#CLIENT_MAC#", $htmltext);
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$htmltext = str_replace("\$CLIENT_IP\$", "#CLIENT_IP#", $htmltext);
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$htmltext = str_replace("\$ORIGINAL_PORTAL_IP\$", "#ORIGINAL_PORTAL_IP#", $htmltext);
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$htmltext = str_replace("\$PORTAL_ACTION\$", "#PORTAL_ACTION#", $htmltext);
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if($config['captiveportal']['preauthurl']) {
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$htmltext = str_replace("\$PORTAL_REDIRURL\$", "{$config['captiveportal']['preauthurl']}", $htmltext);
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$htmltext = str_replace("#PORTAL_REDIRURL#", "{$config['captiveportal']['preauthurl']}", $htmltext);
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}
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fwrite($fd, $htmltext);
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fclose($fd);
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}
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/* write error page */
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if ($config['captiveportal']['page']['errtext'])
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$errtext = base64_decode($config['captiveportal']['page']['errtext']);
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else {
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/* example page */
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$errtext = get_default_captive_portal_html();
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}
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$fd = @fopen("{$g['varetc_path']}/captiveportal-error.html", "w");
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if ($fd) {
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// Special case handling. Convert so that we can pass this page
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// through the PHP interpreter later without clobbering the vars.
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$errtext = str_replace("\$PORTAL_REDIRURL\$", "#PORTAL_REDIRURL#", $errtext);
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$errtext = str_replace("\$PORTAL_MESSAGE\$", "#PORTAL_MESSAGE#", $errtext);
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$errtext = str_replace("\$CLIENT_MAC\$", "#CLIENT_MAC#", $errtext);
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$errtext = str_replace("\$CLIENT_IP\$", "#CLIENT_IP#", $errtext);
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$errtext = str_replace("\$ORIGINAL_PORTAL_IP\$", "#ORIGINAL_PORTAL_IP#", $errtext);
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$errtext = str_replace("\$PORTAL_ACTION\$", "#PORTAL_ACTION#", $errtext);
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if($config['captiveportal']['preauthurl']) {
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$errtext = str_replace("\$PORTAL_REDIRURL\$", "{$config['captiveportal']['preauthurl']}", $errtext);
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$errtext = str_replace("#PORTAL_REDIRURL#", "{$config['captiveportal']['preauthurl']}", $errtext);
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}
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fwrite($fd, $errtext);
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fclose($fd);
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}
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/* write error page */
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if ($config['captiveportal']['page']['logouttext'])
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$logouttext = base64_decode($config['captiveportal']['page']['logouttext']);
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else {
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/* example page */
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$logouttext = <<<EOD
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<HTML>
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<HEAD><TITLE>Redirecting...</TITLE></HEAD>
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<BODY>
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<SPAN STYLE="font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif; font-size: 11px;">
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<B>Redirecting to <A HREF="<?=\$my_redirurl;?>"><?=\$my_redirurl;?></A>...</B>
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</SPAN>
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<SCRIPT LANGUAGE="JavaScript">
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<!--
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LogoutWin = window.open('', 'Logout', 'toolbar=0,scrollbars=0,location=0,statusbar=0,menubar=0,resizable=0,width=256,height=64');
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if (LogoutWin) {
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LogoutWin.document.write('<HTML>');
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LogoutWin.document.write('<HEAD><TITLE>Logout</TITLE></HEAD>') ;
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LogoutWin.document.write('<BODY BGCOLOR="#435370">');
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LogoutWin.document.write('<DIV ALIGN="center" STYLE="color: #ffffff; font-family: Tahoma, Verdana, Arial, Helvetica, sans-serif; font-size: 11px;">') ;
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LogoutWin.document.write('<B>Click the button below to disconnect</B><P>');
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LogoutWin.document.write('<FORM METHOD="POST" ACTION="<?=\$logouturl;?>">');
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LogoutWin.document.write('<INPUT NAME="logout_id" TYPE="hidden" VALUE="<?=\$sessionid;?>">');
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LogoutWin.document.write('<INPUT NAME="logout" TYPE="submit" VALUE="Logout">');
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LogoutWin.document.write('</FORM>');
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LogoutWin.document.write('</DIV></BODY>');
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LogoutWin.document.write('</HTML>');
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LogoutWin.document.close();
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}
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document.location.href="<?=\$my_redirurl;?>";
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-->
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</SCRIPT>
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</BODY>
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</HTML>
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EOD;
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}
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$fd = @fopen("{$g['varetc_path']}/captiveportal-logout.html", "w");
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if ($fd) {
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fwrite($fd, $logouttext);
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fclose($fd);
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}
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/* write elements */
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captiveportal_write_elements();
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/* start up the webserving daemon */
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captiveportal_init_webgui();
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/* Kill any existing prunecaptiveportal processes */
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if(file_exists("{$g['varrun_path']}/cp_prunedb.pid"))
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killbypid("{$g['varrun_path']}/cp_prunedb.pid");
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/* start pruning process (interval defaults to 60 seconds) */
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mwexec("/usr/local/bin/minicron $croninterval {$g['varrun_path']}/cp_prunedb.pid " .
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"/etc/rc.prunecaptiveportal");
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/* generate radius server database */
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captiveportal_init_radius_servers();
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if ($g['booting'])
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echo "done\n";
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} else {
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killbypid("{$g['varrun_path']}/lighty-CaptivePortal.pid");
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killbypid("{$g['varrun_path']}/lighty-CaptivePortal-SSL.pid");
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killbypid("{$g['varrun_path']}/cp_prunedb.pid");
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captiveportal_radius_stop_all();
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mwexec("/sbin/sysctl net.link.ether.ipfw=0");
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/* unload ipfw */
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if (is_module_loaded("ipfw.ko"))
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mwexec("/sbin/kldunload ipfw.ko");
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$listifs = get_configured_interface_list_by_realif();
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foreach ($listifs as $listrealif => $listif) {
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if (!empty($listrealif)) {
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if (does_interface_exist($listrealif)) {
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pfSense_interface_flags($listrealif, -IFF_IPFW_FILTER);
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$carpif = link_ip_to_carp_interface(find_interface_ip($listrealif));
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if (!empty($carpif)) {
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$carpsif = explode(" ", $carpif);
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foreach ($carpsif as $cpcarp)
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pfSense_interface_flags($cpcarp, -IFF_IPFW_FILTER);
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}
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}
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}
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}
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}
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unlock($captiveportallck);
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return 0;
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}
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function captiveportal_init_webgui() {
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global $g, $config;
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if (!isset($config['captiveportal']['enable']))
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return;
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if (isset($config['captiveportal']['httpslogin'])) {
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$cert = base64_decode($config['captiveportal']['certificate']);
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if (isset($config['captiveportal']['cacertificate']))
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$cacert = base64_decode($config['captiveportal']['cacertificate']);
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else
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$cacert = "";
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$key = base64_decode($config['captiveportal']['private-key']);
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/* generate lighttpd configuration */
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system_generate_lighty_config("{$g['varetc_path']}/lighty-CaptivePortal-SSL.conf.UNUSED-by-UNIVNAUTES",
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$cert, $key, $cacert, "lighty-CaptivePortal-SSL.pid", "8001", "/usr/local/captiveportal/",
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"cert-portal.pem", "ca-portal.pem", 1, true);
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}
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/* generate lighttpd configuration */
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system_generate_lighty_config("{$g['varetc_path']}/lighty-CaptivePortal.conf.UNUSED-by-UNIVNAUTES",
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"", "", "", "lighty-CaptivePortal.pid", "8000", "/usr/local/captiveportal/",
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"cert-portal.pem", "ca-portal.pem", 1, true);
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@unlink("{$g['varrun_path']}/lighty-CaptivePortal.pid");
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/* attempt to start lighttpd */
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/* UNIVNAUTES
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$res = mwexec("/usr/local/sbin/lighttpd -f {$g['varetc_path']}/lighty-CaptivePortal.conf");
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*/
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/* fire up https instance */
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if (isset($config['captiveportal']['httpslogin'])) {
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@unlink("{$g['varrun_path']}/lighty-CaptivePortal-SSL.pid");
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$res = mwexec("/usr/local/sbin/lighttpd -f {$g['varetc_path']}/lighty-CaptivePortal-SSL.conf");
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}
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}
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/* reinit will disconnect all users, be careful! */
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function captiveportal_init_rules($reinit = false) {
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global $config, $g;
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if (!isset($config['captiveportal']['enable']))
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return;
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$cpips = array();
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$ifaces = get_configured_interface_list();
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foreach ($ifaces as $kiface => $kiface2) {
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$tmpif = get_real_interface($kiface);
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pfSense_interface_flags($tmpif, -IFF_IPFW_FILTER);
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}
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$cpinterfaces = explode(",", $config['captiveportal']['interface']);
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$firsttime = 0;
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foreach ($cpinterfaces as $cpifgrp) {
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if (!isset($ifaces[$cpifgrp]))
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continue;
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$tmpif = get_real_interface($cpifgrp);
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if (!empty($tmpif)) {
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if ($firsttime > 0)
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$cpinterface .= " or ";
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$cpinterface .= "via {$tmpif}";
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$firsttime = 1;
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$cpipm = get_interface_ip($cpifgrp);
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if (is_ipaddr($cpipm)) {
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$carpif = link_ip_to_carp_interface($cpipm);
|
|
if (!empty($carpif)) {
|
|
$carpsif = explode(" ", $carpif);
|
|
foreach ($carpsif as $cpcarp) {
|
|
pfSense_interface_flags($cpcarp, IFF_IPFW_FILTER);
|
|
$carpip = find_interface_ip($cpcarp);
|
|
if (is_ipaddr($carpip))
|
|
$cpips[] = $carpip;
|
|
}
|
|
}
|
|
$cpips[] = $cpipm;
|
|
pfSense_interface_flags($tmpif, IFF_IPFW_FILTER);
|
|
}
|
|
}
|
|
}
|
|
if (count($cpips) > 0) {
|
|
$cpactive = true;
|
|
$cpinterface = "{ {$cpinterface} } ";
|
|
} else
|
|
return false;
|
|
|
|
if ($reinit == false)
|
|
$captiveportallck = lock('captiveportal');
|
|
|
|
/* init dummynet/ipfw rules number database */
|
|
captiveportal_init_ipfw_ruleno();
|
|
|
|
/* make sure ipfw is loaded */
|
|
filter_load_ipfw();
|
|
/* Always load dummynet now that even allowed ip and mac passthrough use it. */
|
|
if (!is_module_loaded("dummynet.ko"))
|
|
mwexec("/sbin/kldload dummynet");
|
|
|
|
$cprules = "add 65291 set 1 allow pfsync from any to any\n";
|
|
$cprules .= "add 65292 set 1 allow carp from any to any\n";
|
|
|
|
$cprules .= <<<EOD
|
|
# add 65300 set 1 skipto 65534 all from any to any not layer2
|
|
# layer 2: pass ARP
|
|
add 65301 set 1 pass layer2 mac-type arp
|
|
# pfsense requires for WPA
|
|
add 65302 set 1 pass layer2 mac-type 0x888e
|
|
add 65303 set 1 pass layer2 mac-type 0x88c7
|
|
|
|
# PPP Over Ethernet Discovery Stage
|
|
add 65304 set 1 pass layer2 mac-type 0x8863
|
|
# PPP Over Ethernet Session Stage
|
|
add 65305 set 1 pass layer2 mac-type 0x8864
|
|
|
|
# layer 2: block anything else non-IP
|
|
add 65307 set 1 deny layer2 not mac-type ip
|
|
|
|
EOD;
|
|
|
|
$rulenum = 65310;
|
|
$ipcount = 0;
|
|
$ips = "";
|
|
foreach ($cpips as $cpip) {
|
|
if($ipcount == 0) {
|
|
$ips = "{$cpip} ";
|
|
} else {
|
|
$ips .= "or {$cpip} ";
|
|
}
|
|
$ipcount++;
|
|
}
|
|
$ips = "{ 255.255.255.255 or {$ips} }";
|
|
$cprules .= "add {$rulenum} set 1 pass ip from any to {$ips} in\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} set 1 pass ip from {$ips} to any out\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} set 1 pass icmp from {$ips} to any out icmptype 0\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} set 1 pass icmp from any to {$ips} in icmptype 8 \n";
|
|
$rulenum++;
|
|
/* Allowed ips */
|
|
$cprules .= "add {$rulenum} allow ip from table(3) to any in\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} allow ip from any to table(4) out\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} pipe tablearg ip from table(5) to any in\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} pipe tablearg ip from any to table(6) out\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} allow ip from any to table(7) in\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} allow ip from table(8) to any out\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} pipe tablearg ip from any to table(9) in\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} pipe tablearg ip from table(10) to any out\n";
|
|
$rulenum++;
|
|
|
|
/* Authenticated users rules. */
|
|
if (isset($config['captiveportal']['peruserbw'])) {
|
|
$cprules .= "add {$rulenum} set 1 pipe tablearg ip from table(1) to any in\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} set 1 pipe tablearg ip from any to table(2) out\n";
|
|
$rulenum++;
|
|
} else {
|
|
$cprules .= "add {$rulenum} set 1 allow ip from table(1) to any in\n";
|
|
$rulenum++;
|
|
$cprules .= "add {$rulenum} set 1 allow ip from any to table(2) out\n";
|
|
$rulenum++;
|
|
}
|
|
|
|
$cprules .= <<<EOD
|
|
|
|
# redirect non-authenticated clients to captive portal
|
|
add 65531 set 1 fwd 127.0.0.1,8000 tcp from any to any in
|
|
# let the responses from the captive portal web server back out
|
|
add 65532 set 1 pass tcp from any to any out
|
|
# block everything else
|
|
add 65533 set 1 deny all from any to any
|
|
# pass everything else on layer2
|
|
add 65534 set 1 pass all from any to any layer2
|
|
|
|
EOD;
|
|
|
|
/* generate passthru mac database */
|
|
$cprules .= captiveportal_passthrumac_configure(true);
|
|
$cprules .= "\n";
|
|
|
|
/* allowed ipfw rules to make allowed ip work */
|
|
$cprules .= captiveportal_allowedip_configure();
|
|
|
|
/* allowed ipfw rules to make allowed hostnames work */
|
|
$cprules .= captiveportal_allowedhostname_configure();
|
|
|
|
/* UNIVNAUTES : whitelist in table 42 */
|
|
$cprules .= <<<EOD
|
|
# accept every traffic from table 42
|
|
add 65500 allow ip from any to table(42) in
|
|
add 65501 allow ip from table(42) to any out
|
|
table 42 flush
|
|
EOD;
|
|
|
|
/* load rules */
|
|
if ($reinit == true)
|
|
$cprules = "table all flush\nflush\n{$cprules}";
|
|
else {
|
|
$tmprules = "table 3 flush\n";
|
|
$tmprules .= "table 4 flush\n";
|
|
$tmprules .= "table 5 flush\n";
|
|
$tmprules .= "table 6 flush\n";
|
|
$tmprules .= "table 7 flush\n";
|
|
$tmprules .= "table 8 flush\n";
|
|
$tmprules .= "table 9 flush\n";
|
|
$tmprules .= "table 10 flush\n";
|
|
$tmprules .= "flush\n";
|
|
$cprules = "{$tmprules}\n{$cprules}";
|
|
}
|
|
|
|
file_put_contents("{$g['tmp_path']}/ipfw.cp.rules", $cprules);
|
|
mwexec("/sbin/ipfw -q {$g['tmp_path']}/ipfw.cp.rules", true);
|
|
//@unlink("{$g['tmp_path']}/ipfw.cp.rules");
|
|
|
|
if ($reinit == false)
|
|
unlock($captiveportallck);
|
|
|
|
/* activate ipfw(4) so CP can work */
|
|
mwexec("/sbin/sysctl net.link.ether.ipfw=1");
|
|
/* Make sure not re-entrancy is allowed in ipfw(4) */
|
|
mwexec("/sbin/sysctl net.inet.ip.fw.one_pass=1");
|
|
|
|
/* UNIVNAUTES : populate whitelist */
|
|
mwexec_bg("/usr/local/bin/univnautes-update-whitelist.sh reset");
|
|
|
|
return $cprules;
|
|
}
|
|
|
|
/* remove clients that have been around for longer than the specified amount of time
|
|
* db file structure:
|
|
* timestamp,ipfw_rule_no,clientip,clientmac,username,sessionid,password,session_timeout,idle_timeout,session_terminate_time
|
|
* (password is in Base64 and only saved when reauthentication is enabled)
|
|
*/
|
|
function captiveportal_prune_old() {
|
|
global $g, $config;
|
|
|
|
/* check for expired entries */
|
|
if (empty($config['captiveportal']['timeout']) ||
|
|
!is_numeric($config['captiveportal']['timeout']))
|
|
$timeout = 0;
|
|
else
|
|
$timeout = $config['captiveportal']['timeout'] * 60;
|
|
|
|
if (empty($config['captiveportal']['idletimeout']) ||
|
|
!is_numeric($config['captiveportal']['idletimeout']))
|
|
$idletimeout = 0;
|
|
else
|
|
$idletimeout = $config['captiveportal']['idletimeout'] * 60;
|
|
|
|
if (!$timeout && !$idletimeout && !isset($config['captiveportal']['reauthenticate']) &&
|
|
!isset($config['captiveportal']['radiussession_timeout']) && !isset($config['voucher']['enable']))
|
|
return;
|
|
|
|
$radiusservers = captiveportal_get_radius_servers();
|
|
|
|
/* read database */
|
|
$cpdb = captiveportal_read_db();
|
|
|
|
/* To make sure we iterate over ALL accounts on every run the count($cpdb) is moved
|
|
* outside of the loop. Otherwise the loop would evaluate count() on every iteration
|
|
* and since $i would increase and count() would decrement they would meet before we
|
|
* had a chance to iterate over all accounts.
|
|
*/
|
|
$unsetindexes = array();
|
|
$voucher_needs_sync = false;
|
|
/*
|
|
* Snapshot the time here to use for calculation to speed up the process.
|
|
* If something is missed next run will catch it!
|
|
*/
|
|
$pruning_time = time();
|
|
$stop_time = $pruning_time;
|
|
foreach ($cpdb as $cpentry) {
|
|
|
|
$timedout = false;
|
|
$term_cause = 1;
|
|
|
|
/* hard timeout? */
|
|
if ($timeout) {
|
|
if (($pruning_time - $cpentry[0]) >= $timeout) {
|
|
$timedout = true;
|
|
$term_cause = 5; // Session-Timeout
|
|
}
|
|
}
|
|
|
|
/* Session-Terminate-Time */
|
|
if (!$timedout && !empty($cpentry[9])) {
|
|
if ($pruning_time >= $cpentry[9]) {
|
|
$timedout = true;
|
|
$term_cause = 5; // Session-Timeout
|
|
}
|
|
}
|
|
|
|
/* check if the radius idle_timeout attribute has been set and if its set change the idletimeout to this value */
|
|
$uidletimeout = (is_numeric($cpentry[8])) ? $cpentry[8] : $idletimeout;
|
|
/* if an idle timeout is specified, get last activity timestamp from ipfw */
|
|
if (!$timedout && $uidletimeout > 0) {
|
|
$lastact = captiveportal_get_last_activity($cpentry[2]);
|
|
/* If the user has logged on but not sent any traffic they will never be logged out.
|
|
* We "fix" this by setting lastact to the login timestamp.
|
|
*/
|
|
$lastact = $lastact ? $lastact : $cpentry[0];
|
|
if ($lastact && (($pruning_time - $lastact) >= $uidletimeout)) {
|
|
$timedout = true;
|
|
$term_cause = 4; // Idle-Timeout
|
|
$stop_time = $lastact; // Entry added to comply with WISPr
|
|
}
|
|
}
|
|
|
|
/* if vouchers are configured, activate session timeouts */
|
|
if (!$timedout && isset($config['voucher']['enable']) && !empty($cpentry[7])) {
|
|
if ($pruning_time >= ($cpentry[0] + $cpentry[7])) {
|
|
$timedout = true;
|
|
$term_cause = 5; // Session-Timeout
|
|
$voucher_needs_sync = true;
|
|
}
|
|
}
|
|
|
|
/* if radius session_timeout is enabled and the session_timeout is not null, then check if the user should be logged out */
|
|
if (!$timedout && isset($config['captiveportal']['radiussession_timeout']) && !empty($cpentry[7])) {
|
|
if ($pruning_time >= ($cpentry[0] + $cpentry[7])) {
|
|
$timedout = true;
|
|
$term_cause = 5; // Session-Timeout
|
|
}
|
|
}
|
|
|
|
if ($timedout) {
|
|
captiveportal_disconnect($cpentry, $radiusservers,$term_cause,$stop_time);
|
|
captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "TIMEOUT");
|
|
$unsetindexes[] = $cpentry[5];
|
|
}
|
|
|
|
/* do periodic RADIUS reauthentication? */
|
|
if (!$timedout && !empty($radiusservers)) {
|
|
if (isset($config['captiveportal']['radacct_enable'])) {
|
|
if ($config['captiveportal']['reauthenticateacct'] == "stopstart") {
|
|
/* stop and restart accounting */
|
|
RADIUS_ACCOUNTING_STOP($cpentry[1], // ruleno
|
|
$cpentry[4], // username
|
|
$cpentry[5], // sessionid
|
|
$cpentry[0], // start time
|
|
$radiusservers,
|
|
$cpentry[2], // clientip
|
|
$cpentry[3], // clientmac
|
|
10); // NAS Request
|
|
exec("/sbin/ipfw table 1 entryzerostats {$cpentry[2]}");
|
|
exec("/sbin/ipfw table 2 entryzerostats {$cpentry[2]}");
|
|
RADIUS_ACCOUNTING_START($cpentry[1], // ruleno
|
|
$cpentry[4], // username
|
|
$cpentry[5], // sessionid
|
|
$radiusservers,
|
|
$cpentry[2], // clientip
|
|
$cpentry[3]); // clientmac
|
|
} else if ($config['captiveportal']['reauthenticateacct'] == "interimupdate") {
|
|
RADIUS_ACCOUNTING_STOP($cpentry[1], // ruleno
|
|
$cpentry[4], // username
|
|
$cpentry[5], // sessionid
|
|
$cpentry[0], // start time
|
|
$radiusservers,
|
|
$cpentry[2], // clientip
|
|
$cpentry[3], // clientmac
|
|
10, // NAS Request
|
|
true); // Interim Updates
|
|
}
|
|
}
|
|
|
|
/* check this user against RADIUS again */
|
|
if (isset($config['captiveportal']['reauthenticate'])) {
|
|
$auth_list = RADIUS_AUTHENTICATION($cpentry[4], // username
|
|
base64_decode($cpentry[6]), // password
|
|
$radiusservers,
|
|
$cpentry[2], // clientip
|
|
$cpentry[3], // clientmac
|
|
$cpentry[1]); // ruleno
|
|
if ($auth_list['auth_val'] == 3) {
|
|
captiveportal_disconnect($cpentry, $radiusservers, 17);
|
|
captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "RADIUS_DISCONNECT", $auth_list['reply_message']);
|
|
$unsetindexes[] = $cpentry[5];
|
|
} else if ($auth_list['auth_val'] == 2) // SUCCESS, check if any optional attributes are returned
|
|
captiveportal_reapply_attributes($cpentry, $auth_list);
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($voucher_needs_sync == true)
|
|
/* Triger a sync of the vouchers on config */
|
|
send_event("service sync vouchers");
|
|
|
|
/* write database */
|
|
if (!empty($unsetindexes))
|
|
captiveportal_write_db($cpdb, false, $unsetindexes);
|
|
}
|
|
|
|
/* remove a single client according to the DB entry */
|
|
function captiveportal_disconnect($dbent, $radiusservers,$term_cause = 1,$stop_time = null) {
|
|
global $g, $config;
|
|
|
|
$stop_time = (empty($stop_time)) ? time() : $stop_time;
|
|
|
|
/* this client needs to be deleted - remove ipfw rules */
|
|
if (isset($config['captiveportal']['radacct_enable']) && !empty($radiusservers)) {
|
|
RADIUS_ACCOUNTING_STOP($dbent[1], // ruleno
|
|
$dbent[4], // username
|
|
$dbent[5], // sessionid
|
|
$dbent[0], // start time
|
|
$radiusservers,
|
|
$dbent[2], // clientip
|
|
$dbent[3], // clientmac
|
|
$term_cause, // Acct-Terminate-Cause
|
|
false,
|
|
$stop_time);
|
|
}
|
|
|
|
if (is_ipaddr($dbent[2])) {
|
|
/* Delete client's ip entry from tables 3 and 4. */
|
|
mwexec("/sbin/ipfw table 1 delete {$dbent[2]}");
|
|
mwexec("/sbin/ipfw table 2 delete {$dbent[2]}");
|
|
/* XXX: Redundant?! Ensure all pf(4) states are killed. */
|
|
mwexec("pfctl -k {$dbent[2]}");
|
|
mwexec("pfctl -K {$dbent[2]}");
|
|
}
|
|
|
|
/*
|
|
* These are the pipe numbers we use to control traffic shaping for each logged in user via captive portal
|
|
* We could get an error if the pipe doesn't exist but everything should still be fine
|
|
*/
|
|
if (isset($config['captiveportal']['peruserbw'])) {
|
|
mwexec("/sbin/ipfw pipe " . ($dbent[1]+20000) . " delete");
|
|
mwexec("/sbin/ipfw pipe " . ($dbent[1]+20001) . " delete");
|
|
}
|
|
|
|
/* Release the ruleno so it can be reallocated to new clients. */
|
|
captiveportal_free_ipfw_ruleno($dbent[1]);
|
|
|
|
// XMLRPC Call over to the master Voucher node
|
|
if(!empty($config['voucher']['vouchersyncdbip'])) {
|
|
$syncip = $config['voucher']['vouchersyncdbip'];
|
|
$syncport = $config['voucher']['vouchersyncport'];
|
|
$syncpass = $config['voucher']['vouchersyncpass'];
|
|
$vouchersyncusername = $config['voucher']['vouchersyncusername'];
|
|
$remote_status = xmlrpc_sync_voucher_disconnect($dbent, $syncip, $syncport, $syncpass, $vouchersyncusername, $term_cause, $stop_time);
|
|
}
|
|
|
|
}
|
|
|
|
/* remove a single client by sessionid */
|
|
function captiveportal_disconnect_client($sessionid, $term_cause = 1, $logoutReason = "LOGOUT") {
|
|
global $g, $config;
|
|
|
|
$radiusservers = captiveportal_get_radius_servers();
|
|
$unsetindex = array();
|
|
|
|
/* read database */
|
|
$cpdb = captiveportal_read_db();
|
|
|
|
/* find entry */
|
|
if (isset($cpdb[$sessionid])) {
|
|
$cpentry = $cpdb[$sessionid];
|
|
/* write database */
|
|
$unsetindex[] = $sessionid;
|
|
captiveportal_write_db($cpdb, false, $unsetindex);
|
|
|
|
captiveportal_disconnect($cpentry, $radiusservers, $term_cause);
|
|
captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "DISCONNECT");
|
|
}
|
|
}
|
|
|
|
/* send RADIUS acct stop for all current clients */
|
|
function captiveportal_radius_stop_all() {
|
|
global $config;
|
|
|
|
if (!isset($config['captiveportal']['radacct_enable']))
|
|
return;
|
|
|
|
$radiusservers = captiveportal_get_radius_servers();
|
|
if (!empty($radiusservers)) {
|
|
$cpdb = captiveportal_read_db();
|
|
foreach ($cpdb as $cpentry) {
|
|
RADIUS_ACCOUNTING_STOP($cpentry[1], // ruleno
|
|
$cpentry[4], // username
|
|
$cpentry[5], // sessionid
|
|
$cpentry[0], // start time
|
|
$radiusservers,
|
|
$cpentry[2], // clientip
|
|
$cpentry[3], // clientmac
|
|
7); // Admin Reboot
|
|
}
|
|
}
|
|
}
|
|
|
|
function captiveportal_passthrumac_configure_entry($macent) {
|
|
$rules = "";
|
|
$enBwup = isset($macent['bw_up']);
|
|
$enBwdown = isset($macent['bw_down']);
|
|
$actionup = "allow";
|
|
$actiondown = "allow";
|
|
|
|
$ruleno = captiveportal_get_next_ipfw_ruleno(2000, 49899, true);
|
|
|
|
if ($enBwup) {
|
|
$bw_up = $ruleno + 20000;
|
|
$rules .= "pipe {$bw_up} config bw {$macent['bw_up']}Kbit/s queue 100\n";
|
|
$actionup = "pipe {$bw_up}";
|
|
}
|
|
if ($enBwdown) {
|
|
$bw_down = $ruleno + 20001;
|
|
$rules .= "pipe {$bw_down} config bw {$macent['bw_down']}Kbit/s queue 100\n";
|
|
$actiondown = "pipe {$bw_down}";
|
|
}
|
|
$rules .= "add {$ruleno} {$actiondown} ip from any to any MAC {$macent['mac']} any\n";
|
|
$ruleno++;
|
|
$rules .= "add {$ruleno} {$actionup} ip from any to any MAC any {$macent['mac']}\n";
|
|
|
|
return $rules;
|
|
}
|
|
|
|
function captiveportal_passthrumac_configure($lock = false) {
|
|
global $config, $g;
|
|
|
|
$rules = "";
|
|
|
|
if (is_array($config['captiveportal']['passthrumac'])) {
|
|
$macdb = array();
|
|
foreach ($config['captiveportal']['passthrumac'] as $macent) {
|
|
$rules .= captiveportal_passthrumac_configure_entry($macent);
|
|
$macdb[$macent['mac']]['active'] = true;
|
|
|
|
}
|
|
}
|
|
|
|
return $rules;
|
|
}
|
|
|
|
function captiveportal_passthrumac_findbyname($username) {
|
|
global $config;
|
|
|
|
if (is_array($config['captiveportal']['passthrumac'])) {
|
|
foreach ($config['captiveportal']['passthrumac'] as $macent) {
|
|
if ($macent['username'] == $username)
|
|
return $macent;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* table (3=IN)/(4=OUT) hold allowed ip's without bw limits
|
|
* table (5=IN)/(6=OUT) hold allowed ip's with bw limit.
|
|
*/
|
|
function captiveportal_allowedip_configure_entry($ipent) {
|
|
|
|
/* This function can deal with hostname or ipaddress */
|
|
if($ipent['ip'])
|
|
$ipaddress = $ipent['ip'];
|
|
|
|
/* Instead of copying this entire function for something
|
|
* easy such as hostname vs ip address add this check
|
|
*/
|
|
if($ipent['hostname']) {
|
|
$ipaddress = gethostbyname($ipent['hostname']);
|
|
if(!is_ipaddr($ipaddress))
|
|
return;
|
|
}
|
|
|
|
$rules = "";
|
|
$enBwup = intval($ipent['bw_up']);
|
|
$enBwdown = intval($ipent['bw_down']);
|
|
$bw_up = "";
|
|
$bw_down = "";
|
|
$tablein = array();
|
|
$tableout = array();
|
|
|
|
if (intval($enBwup) > 0 or intval($enBwdown) > 0)
|
|
$ruleno = captiveportal_get_next_ipfw_ruleno(2000, 49899, true);
|
|
else
|
|
$ruleno = captiveportal_get_next_ipfw_ruleno(2000, 49899, false);
|
|
|
|
if ($ipent['dir'] == "from") {
|
|
if ($enBwup)
|
|
$tablein[] = 5;
|
|
else
|
|
$tablein[] = 3;
|
|
if ($enBwdown)
|
|
$tableout[] = 6;
|
|
else
|
|
$tableout[] = 4;
|
|
} else if ($ipent['dir'] == "to") {
|
|
if ($enBwup)
|
|
$tablein[] = 9;
|
|
else
|
|
$tablein[] = 7;
|
|
if ($enBwdown)
|
|
$tableout[] = 10;
|
|
else
|
|
$tableout[] = 8;
|
|
} else if ($ipent['dir'] == "both") {
|
|
if ($enBwup) {
|
|
$tablein[] = 5;
|
|
$tablein[] = 9;
|
|
} else {
|
|
$tablein[] = 3;
|
|
$tablein[] = 7;
|
|
}
|
|
if ($enBwdown) {
|
|
$tableout[] = 6;
|
|
$tableout[] = 10;
|
|
} else {
|
|
$tableout[] = 4;
|
|
$tableout[] = 8;
|
|
}
|
|
}
|
|
if ($enBwup) {
|
|
$bw_up = $ruleno + 20000;
|
|
$rules .= "pipe {$bw_up} config bw {$ipent['bw_up']}Kbit/s queue 100\n";
|
|
}
|
|
$subnet = "";
|
|
if (!empty($ipent['sn']))
|
|
$subnet = "/{$ipent['sn']}";
|
|
foreach ($tablein as $table)
|
|
$rules .= "table {$table} add {$ipaddress}{$subnet} {$bw_up}\n";
|
|
if ($enBwdown) {
|
|
$bw_down = $ruleno + 20001;
|
|
$rules .= "pipe {$bw_down} config bw {$ipent['bw_down']}Kbit/s queue 100\n";
|
|
}
|
|
foreach ($tableout as $table)
|
|
$rules .= "table {$table} add {$ipaddress}{$subnet} {$bw_down}\n";
|
|
|
|
return $rules;
|
|
}
|
|
|
|
/*
|
|
Adds a dnsfilter entry and watches for hostname changes.
|
|
A change results in reloading the ruleset.
|
|
*/
|
|
function setup_dnsfilter_entries() {
|
|
global $g, $config;
|
|
|
|
$cp_filterdns_filename = "{$g['varetc_path']}/filterdns-captiveportal.conf";
|
|
$cp_filterdns_conf = "";
|
|
if (is_array($config['captiveportal']['allowedhostname'])) {
|
|
foreach ($config['captiveportal']['allowedhostname'] as $hostnameent) {
|
|
$cp_filterdns_conf .= "ipfw {$hostnameent['hostname']} 3\n";
|
|
$cp_filterdns_conf .= "ipfw {$hostnameent['hostname']} 4\n";
|
|
$cp_filterdns_conf .= "ipfw {$hostnameent['hostname']} 7\n";
|
|
$cp_filterdns_conf .= "ipfw {$hostnameent['hostname']} 8\n";
|
|
}
|
|
}
|
|
file_put_contents($cp_filterdns_filename, $cp_filterdns_conf);
|
|
if (isvalidpid("{$g['tmp_path']}/filterdns-cpah.pid"))
|
|
sigkillbypid("{$g['tmp_path']}/filterdns-cpah.pid", "HUP");
|
|
else {
|
|
killbypid("{$g['tmp_path']}/filterdns-cpah.pid");
|
|
mwexec("/usr/local/sbin/filterdns -p {$g['tmp_path']}/filterdns-cpah.pid -i 300 -c {$cp_filterdns_filename} -d 1");
|
|
}
|
|
}
|
|
|
|
function captiveportal_allowedhostname_configure() {
|
|
global $config, $g;
|
|
|
|
$rules = "\n# captiveportal_allowedhostname_configure()\n";
|
|
setup_dnsfilter_entries();
|
|
if (is_array($config['captiveportal']['allowedhostname'])) {
|
|
foreach ($config['captiveportal']['allowedhostname'] as $hostnameent)
|
|
$rules .= captiveportal_allowedip_configure_entry($hostnameent);
|
|
}
|
|
return $rules;
|
|
}
|
|
|
|
function captiveportal_allowedip_configure() {
|
|
global $config, $g;
|
|
|
|
$rules = "";
|
|
if (is_array($config['captiveportal']['allowedip'])) {
|
|
foreach ($config['captiveportal']['allowedip'] as $ipent)
|
|
$rules .= captiveportal_allowedip_configure_entry($ipent);
|
|
}
|
|
|
|
return $rules;
|
|
}
|
|
|
|
/* get last activity timestamp given client IP address */
|
|
function captiveportal_get_last_activity($ip) {
|
|
|
|
$ipfwoutput = "";
|
|
|
|
exec("/sbin/ipfw table 1 entrystats {$ip} 2>/dev/null", $ipfwoutput);
|
|
/* Reading only from one of the tables is enough of approximation. */
|
|
if ($ipfwoutput[0]) {
|
|
$ri = explode(" ", $ipfwoutput[0]);
|
|
if ($ri[4])
|
|
return $ri[4];
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
function captiveportal_init_radius_servers() {
|
|
global $config, $g;
|
|
|
|
/* generate radius server database */
|
|
if ($config['captiveportal']['radiusip'] && (!isset($config['captiveportal']['auth_method']) ||
|
|
($config['captiveportal']['auth_method'] == "radius"))) {
|
|
$radiusip = $config['captiveportal']['radiusip'];
|
|
$radiusip2 = ($config['captiveportal']['radiusip2']) ? $config['captiveportal']['radiusip2'] : null;
|
|
|
|
if ($config['captiveportal']['radiusport'])
|
|
$radiusport = $config['captiveportal']['radiusport'];
|
|
else
|
|
$radiusport = 1812;
|
|
if ($config['captiveportal']['radiusacctport'])
|
|
$radiusacctport = $config['captiveportal']['radiusacctport'];
|
|
else
|
|
$radiusacctport = 1813;
|
|
if ($config['captiveportal']['radiusport2'])
|
|
$radiusport2 = $config['captiveportal']['radiusport2'];
|
|
else
|
|
$radiusport2 = 1812;
|
|
$radiuskey = $config['captiveportal']['radiuskey'];
|
|
$radiuskey2 = ($config['captiveportal']['radiuskey2']) ? $config['captiveportal']['radiuskey2'] : null;
|
|
|
|
$cprdsrvlck = lock('captiveportalradius', LOCK_EX);
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal_radius.db", "w");
|
|
if (!$fd) {
|
|
captiveportal_syslog("Error: cannot open radius DB file in captiveportal_configure().\n");
|
|
unlock($cprdsrvlck);
|
|
return 1;
|
|
} else if (isset($radiusip2, $radiuskey2))
|
|
fwrite($fd,$radiusip . "," . $radiusport . "," . $radiusacctport . "," . $radiuskey . "\n"
|
|
. $radiusip2 . "," . $radiusport2 . "," . $radiusacctport . "," . $radiuskey2);
|
|
else
|
|
fwrite($fd,$radiusip . "," . $radiusport . "," . $radiusacctport . "," . $radiuskey);
|
|
fclose($fd);
|
|
unlock($cprdsrvlck);
|
|
}
|
|
}
|
|
|
|
/* read RADIUS servers into array */
|
|
function captiveportal_get_radius_servers() {
|
|
global $g;
|
|
|
|
$cprdsrvlck = lock('captiveportalradius');
|
|
if (file_exists("{$g['vardb_path']}/captiveportal_radius.db")) {
|
|
$radiusservers = array();
|
|
$cpradiusdb = file("{$g['vardb_path']}/captiveportal_radius.db",
|
|
FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
|
|
if ($cpradiusdb) {
|
|
foreach($cpradiusdb as $cpradiusentry) {
|
|
$line = trim($cpradiusentry);
|
|
if ($line) {
|
|
$radsrv = array();
|
|
list($radsrv['ipaddr'],$radsrv['port'],$radsrv['acctport'],$radsrv['key']) = explode(",",$line);
|
|
$radiusservers[] = $radsrv;
|
|
}
|
|
}
|
|
}
|
|
unlock($cprdsrvlck);
|
|
return $radiusservers;
|
|
}
|
|
|
|
unlock($cprdsrvlck);
|
|
return false;
|
|
}
|
|
|
|
/* log successful captive portal authentication to syslog */
|
|
/* part of this code from php.net */
|
|
function captiveportal_logportalauth($user,$mac,$ip,$status, $message = null) {
|
|
// Log it
|
|
if (!$message)
|
|
$message = "$status: $user, $mac, $ip";
|
|
else {
|
|
$message = trim($message);
|
|
$message = "$status: $user, $mac, $ip, $message";
|
|
}
|
|
captiveportal_syslog($message);
|
|
}
|
|
|
|
/* log simple messages to syslog */
|
|
function captiveportal_syslog($message) {
|
|
define_syslog_variables();
|
|
$message = trim($message);
|
|
openlog("logportalauth", LOG_PID, LOG_LOCAL4);
|
|
// Log it
|
|
syslog(LOG_INFO, $message);
|
|
closelog();
|
|
}
|
|
|
|
function radius($username,$password,$clientip,$clientmac,$type) {
|
|
global $g, $config;
|
|
|
|
$ruleno = captiveportal_get_next_ipfw_ruleno();
|
|
|
|
/* If the pool is empty, return appropriate message and fail authentication */
|
|
if (is_null($ruleno)) {
|
|
$auth_list = array();
|
|
$auth_list['auth_val'] = 1;
|
|
$auth_list['error'] = "System reached maximum login capacity";
|
|
return $auth_list;
|
|
}
|
|
|
|
$radiusservers = captiveportal_get_radius_servers();
|
|
|
|
$auth_list = RADIUS_AUTHENTICATION($username,
|
|
$password,
|
|
$radiusservers,
|
|
$clientip,
|
|
$clientmac,
|
|
$ruleno);
|
|
|
|
if ($auth_list['auth_val'] == 2) {
|
|
captiveportal_logportalauth($username,$clientmac,$clientip,$type);
|
|
$sessionid = portal_allow($clientip,
|
|
$clientmac,
|
|
$username,
|
|
$password,
|
|
$auth_list,
|
|
$ruleno);
|
|
}
|
|
|
|
return $auth_list;
|
|
}
|
|
|
|
/* read captive portal DB into array */
|
|
function captiveportal_read_db($locked = false, $index = 5 /* sessionid by default */) {
|
|
global $g;
|
|
|
|
$cpdb = array();
|
|
|
|
if ($locked == false)
|
|
$cpdblck = lock('captiveportaldb');
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "r");
|
|
if ($fd) {
|
|
while (!feof($fd)) {
|
|
$line = trim(fgets($fd));
|
|
if ($line) {
|
|
$cpe = explode(",", $line);
|
|
/* Hash by session id */
|
|
$cpdb[$cpe[$index]] = $cpe;
|
|
}
|
|
}
|
|
fclose($fd);
|
|
}
|
|
if ($locked == false)
|
|
unlock($cpdblck);
|
|
return $cpdb;
|
|
}
|
|
|
|
/* write captive portal DB */
|
|
function captiveportal_write_db($cpdb, $locked = false, $remove = false) {
|
|
global $g;
|
|
|
|
if ($locked == false)
|
|
$cpdblck = lock('captiveportaldb', LOCK_EX);
|
|
|
|
if (is_array($remove)) {
|
|
if (!empty($remove)) {
|
|
$cpdb = captiveportal_read_db(true);
|
|
foreach ($remove as $key) {
|
|
if (is_array($key))
|
|
log_error("Captive portal Array passed as unset index: " . print_r($key, true));
|
|
else
|
|
unset($cpdb[$key]);
|
|
}
|
|
} else {
|
|
if ($locked == false)
|
|
unlock($cpdblck);
|
|
return; //This makes sure no record removal calls
|
|
}
|
|
}
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "w");
|
|
if ($fd) {
|
|
foreach ($cpdb as $cpent) {
|
|
fwrite($fd, join(",", $cpent) . "\n");
|
|
}
|
|
fclose($fd);
|
|
}
|
|
if ($locked == false)
|
|
unlock($cpdblck);
|
|
}
|
|
|
|
function captiveportal_write_elements() {
|
|
global $g, $config;
|
|
|
|
/* delete any existing elements */
|
|
if (is_dir($g['captiveportal_element_path'])) {
|
|
$dh = opendir($g['captiveportal_element_path']);
|
|
while (($file = readdir($dh)) !== false) {
|
|
if ($file != "." && $file != "..")
|
|
unlink($g['captiveportal_element_path'] . "/" . $file);
|
|
}
|
|
closedir($dh);
|
|
} else {
|
|
@mkdir($g['captiveportal_element_path']);
|
|
}
|
|
|
|
if (is_array($config['captiveportal']['element'])) {
|
|
conf_mount_rw();
|
|
foreach ($config['captiveportal']['element'] as $data) {
|
|
$fd = @fopen($g['captiveportal_element_path'] . '/' . $data['name'], "wb");
|
|
if (!$fd) {
|
|
printf("Error: cannot open '{$data['name']}' in captiveportal_write_elements().\n");
|
|
return 1;
|
|
}
|
|
$decoded = base64_decode($data['content']);
|
|
fwrite($fd,$decoded);
|
|
fclose($fd);
|
|
unlink_if_exists("{$g['captiveportal_path']}/{$data['name']}");
|
|
unlink_if_exists("{$g['captiveportal_path']}/{$data['name']}");
|
|
mwexec("cd {$g['captiveportal_path']}/ && ln -s {$g['captiveportal_element_path']}/{$data['name']} {$data['name']}");
|
|
}
|
|
conf_mount_ro();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
function captiveportal_init_ipfw_ruleno($rulenos_start = 2000, $rulenos_range_max = 49899) {
|
|
global $g;
|
|
|
|
@unlink("{$g['vardb_path']}/captiveportal.rules");
|
|
$rules = array_pad(array(), $rulenos_range_max - $rulenos_start, false);
|
|
file_put_contents("{$g['vardb_path']}/captiveportal.rules", serialize($rules));
|
|
}
|
|
|
|
/*
|
|
* This function will calculate the lowest free firewall ruleno
|
|
* within the range specified based on the actual logged on users
|
|
*
|
|
*/
|
|
function captiveportal_get_next_ipfw_ruleno($rulenos_start = 2000, $rulenos_range_max = 49899, $usebw = false) {
|
|
global $config, $g;
|
|
|
|
if(!isset($config['captiveportal']['enable']))
|
|
return NULL;
|
|
|
|
$cpruleslck = lock('captiveportalrules', LOCK_EX);
|
|
$ruleno = 0;
|
|
if (file_exists("{$g['vardb_path']}/captiveportal.rules")) {
|
|
$rules = unserialize(file_get_contents("{$g['vardb_path']}/captiveportal.rules"));
|
|
for ($ridx = 2; $ridx < ($rulenos_range_max - $rulenos_start); $ridx++) {
|
|
if ($rules[$ridx]) {
|
|
/*
|
|
* This allows our traffic shaping pipes to be the in pipe the same as ruleno
|
|
* and the out pipe ruleno + 1. This removes limitation that where present in
|
|
* previous version of the peruserbw.
|
|
*/
|
|
if (isset($config['captiveportal']['peruserbw']) || $usebw == true)
|
|
$ridx++;
|
|
continue;
|
|
}
|
|
$ruleno = $ridx;
|
|
$rules[$ridx] = "used";
|
|
if (isset($config['captiveportal']['peruserbw']) || $usebw == true)
|
|
$rules[++$ridx] = "used";
|
|
break;
|
|
}
|
|
} else {
|
|
$rules = array_pad(array(), $rulenos_range_max - $rulenos_start, false);
|
|
$rules[2] = "used";
|
|
$ruleno = 2;
|
|
}
|
|
file_put_contents("{$g['vardb_path']}/captiveportal.rules", serialize($rules));
|
|
unlock($cpruleslck);
|
|
return $ruleno;
|
|
}
|
|
|
|
function captiveportal_free_ipfw_ruleno($ruleno, $usedbw = false) {
|
|
global $config, $g;
|
|
|
|
if(!isset($config['captiveportal']['enable']))
|
|
return NULL;
|
|
|
|
$cpruleslck = lock('captiveportalrules', LOCK_EX);
|
|
if (file_exists("{$g['vardb_path']}/captiveportal.rules")) {
|
|
$rules = unserialize(file_get_contents("{$g['vardb_path']}/captiveportal.rules"));
|
|
$rules[$ruleno] = false;
|
|
if (isset($config['captiveportal']['peruserbw']) || $usedbw == true)
|
|
$rules[++$ruleno] = false;
|
|
file_put_contents("{$g['vardb_path']}/captiveportal.rules", serialize($rules));
|
|
}
|
|
unlock($cpruleslck);
|
|
}
|
|
|
|
function captiveportal_get_ipfw_passthru_ruleno($value) {
|
|
global $config, $g;
|
|
|
|
if(!isset($config['captiveportal']['enable']))
|
|
return NULL;
|
|
|
|
$cpruleslck = lock('captiveportalrules', LOCK_EX);
|
|
if (file_exists("{$g['vardb_path']}/captiveportal.rules")) {
|
|
$rules = unserialize(file_get_contents("{$g['vardb_path']}/captiveportal.rules"));
|
|
$ruleno = intval(`/sbin/ipfw show | /usr/bin/grep {$value} | /usr/bin/grep -v grep | /usr/bin/cut -d " " -f 1 | /usr/bin/head -n 1`);
|
|
if ($rules[$ruleno]) {
|
|
unlock($cpruleslck);
|
|
return $ruleno;
|
|
}
|
|
}
|
|
|
|
unlock($cpruleslck);
|
|
return NULL;
|
|
}
|
|
|
|
/**
|
|
* This function will calculate the traffic produced by a client
|
|
* based on its firewall rule
|
|
*
|
|
* Point of view: NAS
|
|
*
|
|
* Input means: from the client
|
|
* Output means: to the client
|
|
*
|
|
*/
|
|
|
|
function getVolume($ip) {
|
|
|
|
$volume = array();
|
|
|
|
// Initialize vars properly, since we don't want NULL vars
|
|
$volume['input_pkts'] = $volume['input_bytes'] = $volume['output_pkts'] = $volume['output_bytes'] = 0 ;
|
|
|
|
// Ingress
|
|
$ipfwin = "";
|
|
$ipfwout = "";
|
|
$matchesin = "";
|
|
$matchesout = "";
|
|
exec("/sbin/ipfw table 1 entrystats {$ip}", $ipfwin);
|
|
if ($ipfwin[0]) {
|
|
$ipfwin = split(" ", $ipfwin[0]);
|
|
$volume['input_pkts'] = $ipfwin[2];
|
|
$volume['input_bytes'] = $ipfwin[3];
|
|
}
|
|
|
|
exec("/sbin/ipfw table 2 entrystats {$ip}", $ipfwout);
|
|
if ($ipfwout[0]) {
|
|
$ipfwout = split(" ", $ipfwout[0]);
|
|
$volume['output_pkts'] = $ipfwout[2];
|
|
$volume['output_bytes'] = $ipfwout[3];
|
|
}
|
|
|
|
return $volume;
|
|
}
|
|
|
|
/**
|
|
* Get the NAS-Identifier
|
|
*
|
|
* We will use our local hostname to make up the nas_id
|
|
*/
|
|
function getNasID()
|
|
{
|
|
$nasId = "";
|
|
exec("/bin/hostname", $nasId);
|
|
if(!$nasId[0])
|
|
$nasId[0] = "{$g['product_name']}";
|
|
return $nasId[0];
|
|
}
|
|
|
|
/**
|
|
* Get the NAS-IP-Address based on the current wan address
|
|
*
|
|
* Use functions in interfaces.inc to find this out
|
|
*
|
|
*/
|
|
|
|
function getNasIP()
|
|
{
|
|
global $config;
|
|
|
|
if (empty($config['captiveportal']['radiussrcip_attribute'])) {
|
|
$nasIp = get_interface_ip();
|
|
} else {
|
|
if (is_ipaddr($config['captiveportal']['radiussrcip_attribute']))
|
|
$nasIp = $config['captiveportal']['radiussrcip_attribute'];
|
|
else
|
|
$nasIp = get_interface_ip($config['captiveportal']['radiussrcip_attribute']);
|
|
}
|
|
|
|
if(!is_ipaddr($nasIp))
|
|
$nasIp = "0.0.0.0";
|
|
|
|
return $nasIp;
|
|
}
|
|
|
|
function portal_ip_from_client_ip($cliip) {
|
|
global $config;
|
|
|
|
$interfaces = explode(",", $config['captiveportal']['interface']);
|
|
foreach ($interfaces as $cpif) {
|
|
$ip = get_interface_ip($cpif);
|
|
$sn = get_interface_subnet($cpif);
|
|
if (ip_in_subnet($cliip, "{$ip}/{$sn}"))
|
|
return $ip;
|
|
}
|
|
|
|
$iface = exec_command("/sbin/route -n get {$cliip} | /usr/bin/awk '/interface/ { print \$2; };'");
|
|
$iface = trim($iface, "\n");
|
|
if (!empty($iface)) {
|
|
$ip = find_interface_ip($iface);
|
|
if (is_ipaddr($ip))
|
|
return $ip;
|
|
}
|
|
|
|
// doesn't match up to any particular interface
|
|
// so let's set the portal IP to what PHP says
|
|
// the server IP issuing the request is.
|
|
// allows same behavior as 1.2.x where IP isn't
|
|
// in the subnet of any CP interface (static routes, etc.)
|
|
// rather than forcing to DNS hostname resolution
|
|
$ip = $_SERVER['SERVER_ADDR'];
|
|
if (is_ipaddr($ip))
|
|
return $ip;
|
|
|
|
return false;
|
|
}
|
|
|
|
/* functions move from index.php */
|
|
|
|
function portal_reply_page($redirurl, $type = null, $message = null, $clientmac = null, $clientip = null, $username = null, $password = null) {
|
|
global $g, $config;
|
|
|
|
/* Get captive portal layout */
|
|
if ($type == "redir") {
|
|
header("Location: {$redirurl}");
|
|
return;
|
|
} else if ($type == "login")
|
|
$htmltext = get_include_contents("{$g['varetc_path']}/captiveportal.html");
|
|
else
|
|
$htmltext = get_include_contents("{$g['varetc_path']}/captiveportal-error.html");
|
|
|
|
/* substitute the PORTAL_REDIRURL variable */
|
|
if ($config['captiveportal']['preauthurl']) {
|
|
$htmltext = str_replace("\$PORTAL_REDIRURL\$", "{$config['captiveportal']['preauthurl']}", $htmltext);
|
|
$htmltext = str_replace("#PORTAL_REDIRURL#", "{$config['captiveportal']['preauthurl']}", $htmltext);
|
|
}
|
|
|
|
/* substitute other variables */
|
|
if (isset($config['captiveportal']['httpslogin'])) {
|
|
$htmltext = str_replace("\$PORTAL_ACTION\$", "https://{$config['captiveportal']['httpsname']}:8001/", $htmltext);
|
|
$htmltext = str_replace("#PORTAL_ACTION#", "https://{$config['captiveportal']['httpsname']}:8001/", $htmltext);
|
|
} else {
|
|
$ifip = portal_ip_from_client_ip($clientip);
|
|
if (!$ifip)
|
|
$ourhostname = $config['system']['hostname'] . ":8000";
|
|
else
|
|
$ourhostname = "{$ifip}:8000";
|
|
$htmltext = str_replace("\$PORTAL_ACTION\$", "http://{$ourhostname}/", $htmltext);
|
|
$htmltext = str_replace("#PORTAL_ACTION#", "http://{$ourhostname}/", $htmltext);
|
|
}
|
|
|
|
$htmltext = str_replace("\$PORTAL_REDIRURL\$", htmlspecialchars($redirurl), $htmltext);
|
|
$htmltext = str_replace("\$PORTAL_MESSAGE\$", htmlspecialchars($message), $htmltext);
|
|
$htmltext = str_replace("\$CLIENT_MAC\$", htmlspecialchars($clientmac), $htmltext);
|
|
$htmltext = str_replace("\$CLIENT_IP\$", htmlspecialchars($clientip), $htmltext);
|
|
|
|
// Special handling case for captive portal master page so that it can be ran
|
|
// through the PHP interpreter using the include method above. We convert the
|
|
// $VARIABLE$ case to #VARIABLE# in /etc/inc/captiveportal.inc before writing out.
|
|
$htmltext = str_replace("#PORTAL_REDIRURL#", htmlspecialchars($redirurl), $htmltext);
|
|
$htmltext = str_replace("#PORTAL_MESSAGE#", htmlspecialchars($message), $htmltext);
|
|
$htmltext = str_replace("#CLIENT_MAC#", htmlspecialchars($clientmac), $htmltext);
|
|
$htmltext = str_replace("#CLIENT_IP#", htmlspecialchars($clientip), $htmltext);
|
|
$htmltext = str_replace("#USERNAME#", htmlspecialchars($username), $htmltext);
|
|
$htmltext = str_replace("#PASSWORD#", htmlspecialchars($password), $htmltext);
|
|
|
|
echo $htmltext;
|
|
}
|
|
|
|
function portal_mac_radius($clientmac,$clientip) {
|
|
global $config ;
|
|
|
|
$radmac_secret = $config['captiveportal']['radmac_secret'];
|
|
|
|
/* authentication against the radius server */
|
|
$username = mac_format($clientmac);
|
|
$auth_list = radius($username,$radmac_secret,$clientip,$clientmac,"MACHINE LOGIN");
|
|
if ($auth_list['auth_val'] == 2)
|
|
return TRUE;
|
|
if (!empty($auth_list['url_redirection']))
|
|
portal_reply_page($auth_list['url_redirection'], "redir");
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
function captiveportal_reapply_attributes($cpentry, $attributes) {
|
|
global $config, $g;
|
|
|
|
/* Add rules for traffic shaping
|
|
* We don't need to add extra rules since traffic will pass due to the following kernel option
|
|
* net.inet.ip.fw.one_pass: 1
|
|
*/
|
|
$peruserbw = isset($config['captiveportal']['peruserbw']);
|
|
|
|
$bw_up = isset($attributes['bw_up']) ? round(intval($attributes['bw_up'])/1000, 2) : $config['captiveportal']['bwdefaultup'];
|
|
$bw_down = isset($attributes['bw_down']) ? round(intval($attributes['bw_down'])/1000, 2) : $config['captiveportal']['bwdefaultdn'];
|
|
$bw_up_pipeno = $cpentry[1]+20000;
|
|
$bw_down_pipeno = $cpentry[1]+20001;
|
|
$commands = "";
|
|
|
|
if ($peruserbw && !empty($bw_up) && is_numeric($bw_up)) {
|
|
$commands .= "pipe {$bw_up_pipeno} config bw {$bw_up}Kbit/s queue 100\n";
|
|
|
|
if (!isset($config['captiveportal']['nomacfilter'])) {
|
|
$commands .= "table 1 del {$cpentry[2]} mac {$cpentry[3]}\n";
|
|
$commands .= "table 1 add {$cpentry[2]} mac {$cpentry[3]} {$bw_up_pipeno}\n";
|
|
} else {
|
|
$commands .= "table 1 del {$cpentry[2]}\n";
|
|
$commands .= "table 1 add {$cpentry[2]} {$bw_up_pipeno}\n";
|
|
}
|
|
}
|
|
if ($peruserbw && !empty($bw_down) && is_numeric($bw_down)) {
|
|
$commands .= "pipe {$bw_down_pipeno} config bw {$bw_down}Kbit/s queue 100\n";
|
|
|
|
if (!isset($config['captiveportal']['nomacfilter'])) {
|
|
$commands .= "table 2 del {$cpentry[2]} mac {$cpentry[3]}\n";
|
|
$commands .= "table 2 add {$cpentry[2]} mac {$cpentry[3]} {$bw_down_pipeno}\n";
|
|
} else {
|
|
$commands .= "table 2 del {$cpentry[2]}\n";
|
|
$commands .= "table 2 add {$cpentry[2]} {$bw_down_pipeno}\n";
|
|
}
|
|
}
|
|
|
|
if (!empty($commands)) {
|
|
@file_put_contents("{$g['tmp_path']}/reattribute.rule.tmp", $commands);
|
|
mwexec("/sbin/ipfw -q {$g['tmp_path']}/reattribute.rule.tmp");
|
|
//captiveportal_logportalauth($cpentry[4], $cpentry[3], $cpentry[2], "RADIUS_BANDWIDTH_REAPPLY", "{$bw_up}/{$bw_down}");
|
|
}
|
|
|
|
unset($bw_up_pipeno, $bw_Down_pipeno, $bw_up, $bw_down);
|
|
}
|
|
|
|
function portal_allow($clientip,$clientmac,$username,$password = null, $attributes = null, $ruleno = null) {
|
|
|
|
global $redirurl, $g, $config, $type, $passthrumac, $_POST;
|
|
|
|
/* See if a ruleno is passed, if not start sessions because this means there isn't one atm */
|
|
if ($ruleno == null)
|
|
$ruleno = captiveportal_get_next_ipfw_ruleno();
|
|
|
|
/* if the pool is empty, return appropriate message and exit */
|
|
if (is_null($ruleno)) {
|
|
portal_reply_page($redirurl, "error", "System reached maximum login capacity");
|
|
log_error("WARNING! Captive portal has reached maximum login capacity");
|
|
exit;
|
|
}
|
|
|
|
// Ensure we create an array if we are missing attributes
|
|
if (!is_array($attributes))
|
|
$attributes = array();
|
|
|
|
$radiusservers = captiveportal_get_radius_servers();
|
|
|
|
/* Do not allow concurrent login execution. */
|
|
$cpdblck = lock('captiveportaldb', LOCK_EX);
|
|
|
|
unset($sessionid);
|
|
|
|
/* read in client database */
|
|
$cpdb = captiveportal_read_db(true);
|
|
|
|
if ($attributes['voucher'])
|
|
$remaining_time = $attributes['session_timeout'];
|
|
|
|
$writecfg = false;
|
|
if (!$attributes['univnautes_concurrentlogins'])
|
|
/* Find an existing session */
|
|
if ((isset($config['captiveportal']['noconcurrentlogins'])) && $passthrumac) {
|
|
if (isset($config['captiveportal']['passthrumacadd'])) {
|
|
$mac = captiveportal_passthrumac_findbyname($username);
|
|
if (!empty($mac)) {
|
|
if ($_POST['replacemacpassthru']) {
|
|
foreach ($config['captiveportal']['passthrumac'] as $idx => $macent) {
|
|
if ($macent['mac'] == $mac['mac']) {
|
|
$macrules = "";
|
|
$ruleno = captiveportal_get_ipfw_passthru_ruleno($mac['mac']);
|
|
if ($ruleno) {
|
|
captiveportal_free_ipfw_ruleno($ruleno, true);
|
|
$macrules .= "delete {$ruleno}\n";
|
|
++$ruleno;
|
|
$macrules .= "delete {$ruleno}\n";
|
|
}
|
|
unset($config['captiveportal']['passthrumac'][$idx]);
|
|
$mac['mac'] = $clientmac;
|
|
$config['captiveportal']['passthrumac'][] = $mac;
|
|
$macrules .= captiveportal_passthrumac_configure_entry($mac);
|
|
file_put_contents("{$g['tmp_path']}/macentry.rules.tmp", $macrules);
|
|
mwexec("/sbin/ipfw -q {$g['tmp_path']}/macentry.rules.tmp");
|
|
$writecfg = true;
|
|
$sessionid = true;
|
|
break;
|
|
}
|
|
}
|
|
} else {
|
|
portal_reply_page($redirurl, "error", "Username: {$username} is already authenticated using another MAC address.",
|
|
$clientmac, $clientip, $username, $password);
|
|
exit;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Snaphost the timestamp */
|
|
$allow_time = time();
|
|
|
|
foreach ($cpdb as $sid => $cpentry) {
|
|
/* on the same ip */
|
|
if($cpentry[2] == $clientip) {
|
|
if (isset($config['captiveportal']['nomacfilter']) || $cpentry[3] == $clientmac)
|
|
captiveportal_logportalauth($cpentry[4],$cpentry[3],$cpentry[2],"CONCURRENT LOGIN - REUSING OLD SESSION");
|
|
else
|
|
captiveportal_logportalauth($cpentry[4],$cpentry[3],$cpentry[2],"CONCURRENT LOGIN - REUSING IP {$cpentry[2]} WITH DIFFERENT MAC ADDRESS {$cpentry[3]}");
|
|
$sessionid = $sid;
|
|
break;
|
|
}
|
|
elseif (($attributes['voucher']) && ($username != 'unauthenticated') && ($cpentry[4] == $username)) {
|
|
// user logged in with an active voucher. Check for how long and calculate
|
|
// how much time we can give him (voucher credit - used time)
|
|
$remaining_time = $cpentry[0] + $cpentry[7] - $allow_time;
|
|
if ($remaining_time < 0) // just in case.
|
|
$remaining_time = 0;
|
|
|
|
/* This user was already logged in so we disconnect the old one */
|
|
captiveportal_disconnect($cpentry,$radiusservers,13);
|
|
captiveportal_logportalauth($cpentry[4],$cpentry[3],$cpentry[2],"CONCURRENT LOGIN - TERMINATING OLD SESSION");
|
|
unset($cpdb[$sid]);
|
|
break;
|
|
}
|
|
elseif (!$attributes['univnautes_concurrentlogins'])
|
|
if ((isset($config['captiveportal']['noconcurrentlogins'])) && ($username != 'unauthenticated')) {
|
|
/* on the same username */
|
|
if (strcasecmp($cpentry[4], $username) == 0) {
|
|
/* This user was already logged in so we disconnect the old one */
|
|
captiveportal_disconnect($cpentry,$radiusservers,13);
|
|
captiveportal_logportalauth($cpentry[4],$cpentry[3],$cpentry[2],"CONCURRENT LOGIN - TERMINATING OLD SESSION");
|
|
unset($cpdb[$sid]);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ($attributes['voucher'] && $remaining_time <= 0)
|
|
return 0; // voucher already used and no time left
|
|
|
|
if (!isset($sessionid)) {
|
|
/* generate unique session ID */
|
|
$tod = gettimeofday();
|
|
$sessionid = substr(md5(mt_rand() . $tod['sec'] . $tod['usec'] . $clientip . $clientmac), 0, 16);
|
|
|
|
/* Add rules for traffic shaping
|
|
* We don't need to add extra rules since traffic will pass due to the following kernel option
|
|
* net.inet.ip.fw.one_pass: 1
|
|
*/
|
|
$peruserbw = isset($config['captiveportal']['peruserbw']);
|
|
|
|
$bw_up = isset($attributes['bw_up']) ? round(intval($attributes['bw_up'])/1000, 2) : $config['captiveportal']['bwdefaultup'];
|
|
$bw_down = isset($attributes['bw_down']) ? round(intval($attributes['bw_down'])/1000, 2) : $config['captiveportal']['bwdefaultdn'];
|
|
|
|
if ($passthrumac) {
|
|
$mac = array();
|
|
$mac['mac'] = $clientmac;
|
|
if (isset($config['captiveportal']['passthrumacaddusername']))
|
|
$mac['username'] = $username;
|
|
$mac['descr'] = "Auto added pass-through MAC for user {$username}";
|
|
if (!empty($bw_up))
|
|
$mac['bw_up'] = $bw_up;
|
|
if (!empty($bw_down))
|
|
$mac['bw_down'] = $bw_down;
|
|
if (!is_array($config['captiveportal']['passthrumac']))
|
|
$config['captiveportal']['passthrumac'] = array();
|
|
$config['captiveportal']['passthrumac'][] = $mac;
|
|
unlock($cpdblck);
|
|
$macrules = captiveportal_passthrumac_configure_entry($mac);
|
|
@file_put_contents("{$g['tmp_path']}/macentry.rules.tmp", $macrules);
|
|
mwexec("/sbin/ipfw -q {$g['tmp_path']}/macentry.rules.tmp");
|
|
$writecfg = true;
|
|
} else {
|
|
if ($peruserbw && !empty($bw_up) && is_numeric($bw_up)) {
|
|
$bw_up_pipeno = $ruleno + 20000;
|
|
//$bw_up /= 1000; // Scale to Kbit/s
|
|
mwexec("/sbin/ipfw pipe {$bw_up_pipeno} config bw {$bw_up}Kbit/s queue 100");
|
|
|
|
if (!isset($config['captiveportal']['nomacfilter']))
|
|
mwexec("/sbin/ipfw table 1 add {$clientip} mac {$clientmac} {$bw_up_pipeno}");
|
|
else
|
|
mwexec("/sbin/ipfw table 1 add {$clientip} {$bw_up_pipeno}");
|
|
} else {
|
|
if (!isset($config['captiveportal']['nomacfilter']))
|
|
mwexec("/sbin/ipfw table 1 add {$clientip} mac {$clientmac}");
|
|
else
|
|
mwexec("/sbin/ipfw table 1 add {$clientip}");
|
|
}
|
|
if ($peruserbw && !empty($bw_down) && is_numeric($bw_down)) {
|
|
$bw_down_pipeno = $ruleno + 20001;
|
|
//$bw_down /= 1000; // Scale to Kbit/s
|
|
mwexec("/sbin/ipfw pipe {$bw_down_pipeno} config bw {$bw_down}Kbit/s queue 100");
|
|
|
|
if (!isset($config['captiveportal']['nomacfilter']))
|
|
mwexec("/sbin/ipfw table 2 add {$clientip} mac {$clientmac} {$bw_down_pipeno}");
|
|
else
|
|
mwexec("/sbin/ipfw table 2 add {$clientip} {$bw_down_pipeno}");
|
|
} else {
|
|
if (!isset($config['captiveportal']['nomacfilter']))
|
|
mwexec("/sbin/ipfw table 2 add {$clientip} mac {$clientmac}");
|
|
else
|
|
mwexec("/sbin/ipfw table 2 add {$clientip}");
|
|
}
|
|
|
|
if ($attributes['voucher'])
|
|
$attributes['session_timeout'] = $remaining_time;
|
|
|
|
/* encode password in Base64 just in case it contains commas */
|
|
$bpassword = base64_encode($password);
|
|
$cpdb[] = array($allow_time, $ruleno, $clientip, $clientmac, $username, $sessionid, $bpassword,
|
|
$attributes['session_timeout'], $attributes['idle_timeout'], $attributes['session_terminate_time']);
|
|
|
|
/* rewrite information to database */
|
|
captiveportal_write_db($cpdb, true);
|
|
unlock($cpdblck);
|
|
|
|
if (isset($config['captiveportal']['radacct_enable']) && !empty($radiusservers)) {
|
|
$acct_val = RADIUS_ACCOUNTING_START($ruleno,
|
|
$username, $sessionid, $radiusservers, $clientip, $clientmac);
|
|
if ($acct_val == 1)
|
|
captiveportal_logportalauth($username,$clientmac,$clientip,$type,"RADIUS ACCOUNTING FAILED");
|
|
}
|
|
}
|
|
} else
|
|
unlock($cpdblck);
|
|
|
|
if ($writecfg == true)
|
|
write_config();
|
|
|
|
/* redirect user to desired destination */
|
|
if (!empty($attributes['url_redirection']))
|
|
$my_redirurl = $attributes['url_redirection'];
|
|
else if (!empty($config['captiveportal']['redirurl']))
|
|
$my_redirurl = $config['captiveportal']['redirurl'];
|
|
else
|
|
$my_redirurl = $redirurl;
|
|
|
|
if(isset($config['captiveportal']['logoutwin_enable']) && !$passthrumac) {
|
|
|
|
if (isset($config['captiveportal']['httpslogin']))
|
|
$logouturl = "https://{$config['captiveportal']['httpsname']}:8001/";
|
|
else {
|
|
$ifip = portal_ip_from_client_ip($clientip);
|
|
if (!$ifip)
|
|
$ourhostname = $config['system']['hostname'] . ":8000";
|
|
else
|
|
$ourhostname = "{$ifip}:8000";
|
|
$logouturl = "http://{$ourhostname}/";
|
|
}
|
|
|
|
if (isset($attributes['reply_message']))
|
|
$message = $attributes['reply_message'];
|
|
else
|
|
$message = 0;
|
|
|
|
include("{$g['varetc_path']}/captiveportal-logout.html");
|
|
|
|
} else {
|
|
header("Location: " . $my_redirurl);
|
|
}
|
|
|
|
return $sessionid;
|
|
}
|
|
|
|
/*
|
|
* Used for when pass-through credits are enabled.
|
|
* Returns true when there was at least one free login to deduct for the MAC.
|
|
* Expired entries are removed as they are seen.
|
|
* Active entries are updated according to the configuration.
|
|
*/
|
|
function portal_consume_passthrough_credit($clientmac) {
|
|
global $config;
|
|
|
|
if (!empty($config['captiveportal']['freelogins_count']) && is_numeric($config['captiveportal']['freelogins_count']))
|
|
$freeloginscount = $config['captiveportal']['freelogins_count'];
|
|
else
|
|
return false;
|
|
|
|
if (!empty($config['captiveportal']['freelogins_resettimeout']) && is_numeric($config['captiveportal']['freelogins_resettimeout']))
|
|
$resettimeout = $config['captiveportal']['freelogins_resettimeout'];
|
|
else
|
|
return false;
|
|
|
|
if ($freeloginscount < 1 || $resettimeout <= 0 || !$clientmac)
|
|
return false;
|
|
|
|
$updatetimeouts = isset($config['captiveportal']['freelogins_updatetimeouts']);
|
|
|
|
/*
|
|
* Read database of used MACs. Lines are a comma-separated list
|
|
* of the time, MAC, then the count of pass-through credits remaining.
|
|
*/
|
|
$usedmacs = captiveportal_read_usedmacs_db();
|
|
|
|
$currenttime = time();
|
|
$found = false;
|
|
foreach ($usedmacs as $key => $usedmac) {
|
|
$usedmac = explode(",", $usedmac);
|
|
|
|
if ($usedmac[1] == $clientmac) {
|
|
if ($usedmac[0] + ($resettimeout * 3600) > $currenttime) {
|
|
if ($usedmac[2] < 1) {
|
|
if ($updatetimeouts) {
|
|
$usedmac[0] = $currenttime;
|
|
unset($usedmacs[$key]);
|
|
$usedmacs[] = implode(",", $usedmac);
|
|
captiveportal_write_usedmacs_db($usedmacs);
|
|
}
|
|
|
|
return false;
|
|
} else {
|
|
$usedmac[2] -= 1;
|
|
$usedmacs[$key] = implode(",", $usedmac);
|
|
}
|
|
|
|
$found = true;
|
|
} else
|
|
unset($usedmacs[$key]);
|
|
|
|
break;
|
|
} else if ($usedmac[0] + ($resettimeout * 3600) <= $currenttime)
|
|
unset($usedmacs[$key]);
|
|
}
|
|
|
|
if (!$found) {
|
|
$usedmac = array($currenttime, $clientmac, $freeloginscount - 1);
|
|
$usedmacs[] = implode(",", $usedmac);
|
|
}
|
|
|
|
captiveportal_write_usedmacs_db($usedmacs);
|
|
return true;
|
|
}
|
|
|
|
function captiveportal_read_usedmacs_db() {
|
|
global $g;
|
|
|
|
$cpumaclck = lock('captiveusedmacs');
|
|
if (file_exists("{$g['vardb_path']}/captiveportal_usedmacs.db")) {
|
|
$usedmacs = file("{$g['vardb_path']}/captiveportal_usedmacs.db", FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
|
|
if (!$usedmacs)
|
|
$usedmacs = array();
|
|
} else
|
|
$usedmacs = array();
|
|
|
|
unlock($cpumaclck);
|
|
return $usedmacs;
|
|
}
|
|
|
|
function captiveportal_write_usedmacs_db($usedmacs) {
|
|
global $g;
|
|
|
|
$cpumaclck = lock('captiveusedmacs', LOCK_EX);
|
|
@file_put_contents("{$g['vardb_path']}/captiveportal_usedmacs.db", implode("\n", $usedmacs));
|
|
unlock($cpumaclck);
|
|
}
|
|
|
|
?>
|