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<?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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originally part of m0n0wall (http://m0n0.ch/wall)
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Copyright (C) 2010 Scott Ullrich <sullrich@gmail.com>
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Copyright (C) 2009 Ermal Lu?i <ermal.luci@gmail.com>
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Copyright (C) 2003-2006 Manuel Kasper <mk@neon1.net>.
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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 captiveportal_configure() {
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global $config, $g;
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$captiveportallck = lock('captiveportal');
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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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/* 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']}/minicron.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(true);
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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)) { $croninterval = 60; }
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/* write portal page */
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if ($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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$htmltext = <<<EOD
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<html>
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<body>
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<form method="post" action="$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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}
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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#", $htmltext);
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fwrite($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 = <<<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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}
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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#", $errtext);
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fwrite($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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/* start pruning process (interval defaults to 60 seconds) */
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mwexec("/usr/local/bin/minicron $croninterval {$g['varrun_path']}/minicron.pid " .
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"/etc/rc.prunecaptiveportal");
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/* generate radius server database */
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if ($config['captiveportal']['radiusip'] && (!isset($config['captiveportal']['auth_method']) ||
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($config['captiveportal']['auth_method'] == "radius"))) {
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$radiusip = $config['captiveportal']['radiusip'];
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$radiusip2 = ($config['captiveportal']['radiusip2']) ? $config['captiveportal']['radiusip2'] : null;
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if ($config['captiveportal']['radiusport'])
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$radiusport = $config['captiveportal']['radiusport'];
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else
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$radiusport = 1812;
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350
|
if ($config['captiveportal']['radiusacctport'])
|
|
351
|
$radiusacctport = $config['captiveportal']['radiusacctport'];
|
|
352
|
else
|
|
353
|
$radiusacctport = 1813;
|
|
354
|
|
|
355
|
if ($config['captiveportal']['radiusport2'])
|
|
356
|
$radiusport2 = $config['captiveportal']['radiusport2'];
|
|
357
|
else
|
|
358
|
$radiusport2 = 1812;
|
|
359
|
|
|
360
|
$radiuskey = $config['captiveportal']['radiuskey'];
|
|
361
|
$radiuskey2 = ($config['captiveportal']['radiuskey2']) ? $config['captiveportal']['radiuskey2'] : null;
|
|
362
|
|
|
363
|
$fd = @fopen("{$g['vardb_path']}/captiveportal_radius.db", "w");
|
|
364
|
if (!$fd) {
|
|
365
|
printf("Error: cannot open radius DB file in captiveportal_configure().\n");
|
|
366
|
return 1;
|
|
367
|
} else if (isset($radiusip2, $radiuskey2)) {
|
|
368
|
fwrite($fd,$radiusip . "," . $radiusport . "," . $radiusacctport . "," . $radiuskey . "\n"
|
|
369
|
. $radiusip2 . "," . $radiusport2 . "," . $radiusacctport . "," . $radiuskey2);
|
|
370
|
} else {
|
|
371
|
fwrite($fd,$radiusip . "," . $radiusport . "," . $radiusacctport . "," . $radiuskey);
|
|
372
|
}
|
|
373
|
fclose($fd);
|
|
374
|
}
|
|
375
|
|
|
376
|
if ($g['booting'])
|
|
377
|
echo "done\n";
|
|
378
|
|
|
379
|
} else {
|
|
380
|
killbypid("{$g['varrun_path']}/lighty-CaptivePortal.pid");
|
|
381
|
killbypid("{$g['varrun_path']}/minicron.pid");
|
|
382
|
|
|
383
|
captiveportal_radius_stop_all(true);
|
|
384
|
|
|
385
|
mwexec("/sbin/sysctl net.link.ether.ipfw=0");
|
|
386
|
|
|
387
|
/* unload ipfw */
|
|
388
|
if (is_module_loaded("ipfw.ko"))
|
|
389
|
mwexec("/sbin/kldunload ipfw.ko");
|
|
390
|
$listifs = get_configured_interface_list_by_realif();
|
|
391
|
foreach ($listifs as $listrealif => $listif) {
|
|
392
|
if (!empty($listrealif)) {
|
|
393
|
if (does_interface_exist($listrealif)) {
|
|
394
|
pfSense_interface_flags($listrealif, -IFF_IPFW_FILTER);
|
|
395
|
$carpif = link_ip_to_carp_interface(find_interface_ip($listrealif));
|
|
396
|
if (!empty($carpif)) {
|
|
397
|
$carpsif = explode(" ", $carpif);
|
|
398
|
foreach ($carpsif as $cpcarp)
|
|
399
|
pfSense_interface_flags($cpcarp, -IFF_IPFW_FILTER);
|
|
400
|
}
|
|
401
|
}
|
|
402
|
}
|
|
403
|
}
|
|
404
|
}
|
|
405
|
|
|
406
|
unlock($captiveportallck);
|
|
407
|
|
|
408
|
return 0;
|
|
409
|
}
|
|
410
|
|
|
411
|
function captiveportal_init_webgui() {
|
|
412
|
global $g, $config;
|
|
413
|
|
|
414
|
if (!isset($config['captiveportal']['enable']))
|
|
415
|
return;
|
|
416
|
|
|
417
|
if ($config['captiveportal']['maxproc'])
|
|
418
|
$maxproc = $config['captiveportal']['maxproc'];
|
|
419
|
else
|
|
420
|
$maxproc = 16;
|
|
421
|
|
|
422
|
$use_fastcgi = true;
|
|
423
|
|
|
424
|
if (isset($config['captiveportal']['httpslogin'])) {
|
|
425
|
$cert = base64_decode($config['captiveportal']['certificate']);
|
|
426
|
if (isset($config['captiveportal']['cacertificate']))
|
|
427
|
$cacert = base64_decode($config['captiveportal']['cacertificate']);
|
|
428
|
else
|
|
429
|
$cacert = "";
|
|
430
|
$key = base64_decode($config['captiveportal']['private-key']);
|
|
431
|
/* generate lighttpd configuration */
|
|
432
|
system_generate_lighty_config("{$g['varetc_path']}/lighty-CaptivePortal-SSL.conf",
|
|
433
|
$cert, $key, $cacert, "lighty-CaptivePortal-ssl.pid", "8001", "/usr/local/captiveportal/",
|
|
434
|
"cert-portal.pem", "ca-portal.pem", "1", $maxproc, $use_fastcgi, true);
|
|
435
|
}
|
|
436
|
|
|
437
|
/* generate lighttpd configuration */
|
|
438
|
system_generate_lighty_config("{$g['varetc_path']}/lighty-CaptivePortal.conf",
|
|
439
|
"", "", "", "lighty-CaptivePortal.pid", "8000", "/usr/local/captiveportal/",
|
|
440
|
"cert-portal.pem", "ca-portal.pem", "1", $maxproc, $use_fastcgi, true);
|
|
441
|
|
|
442
|
/* attempt to start lighttpd */
|
|
443
|
$res = mwexec("/usr/local/sbin/lighttpd -f {$g['varetc_path']}/lighty-CaptivePortal.conf");
|
|
444
|
|
|
445
|
/* fire up https instance */
|
|
446
|
if (isset($config['captiveportal']['httpslogin']))
|
|
447
|
$res = mwexec("/usr/local/sbin/lighttpd -f {$g['varetc_path']}/lighty-CaptivePortal-SSL.conf");
|
|
448
|
}
|
|
449
|
|
|
450
|
function captiveportal_init_rules($reinit = false) {
|
|
451
|
global $config, $g;
|
|
452
|
|
|
453
|
if (!isset($config['captiveportal']['enable']))
|
|
454
|
return;
|
|
455
|
|
|
456
|
$cpips = array();
|
|
457
|
$ifaces = get_configured_interface_list();
|
|
458
|
foreach ($ifaces as $kiface => $kiface2) {
|
|
459
|
$tmpif = get_real_interface($kiface);
|
|
460
|
pfSense_interface_flags($tmpif, -IFF_IPFW_FILTER);
|
|
461
|
}
|
|
462
|
$cpinterfaces = explode(",", $config['captiveportal']['interface']);
|
|
463
|
$firsttime = 0;
|
|
464
|
foreach ($cpinterfaces as $cpifgrp) {
|
|
465
|
if (!isset($ifaces[$cpifgrp]))
|
|
466
|
continue;
|
|
467
|
$tmpif = get_real_interface($cpifgrp);
|
|
468
|
if (!empty($tmpif)) {
|
|
469
|
if ($firsttime > 0)
|
|
470
|
$cpinterface .= " or ";
|
|
471
|
$cpinterface .= "via {$tmpif}";
|
|
472
|
$firsttime = 1;
|
|
473
|
$cpipm = get_interface_ip($cpifgrp);
|
|
474
|
if (is_ipaddr($cpipm)) {
|
|
475
|
$carpif = link_ip_to_carp_interface($cpipm);
|
|
476
|
if (!empty($carpif)) {
|
|
477
|
$carpsif = explode(" ", $carpif);
|
|
478
|
foreach ($carpsif as $cpcarp) {
|
|
479
|
pfSense_interface_flags($cpcarp, IFF_IPFW_FILTER);
|
|
480
|
$carpip = find_interface_ip($cpcarp);
|
|
481
|
if (is_ipaddr($carpip))
|
|
482
|
$cpips[] = $carpip;
|
|
483
|
}
|
|
484
|
}
|
|
485
|
$cpips[] = $cpipm;
|
|
486
|
pfSense_interface_flags($tmpif, IFF_IPFW_FILTER);
|
|
487
|
}
|
|
488
|
}
|
|
489
|
}
|
|
490
|
if (count($cpips) > 0) {
|
|
491
|
$cpactive = true;
|
|
492
|
$cpinterface = "{ {$cpinterface} } ";
|
|
493
|
} else
|
|
494
|
return false;
|
|
495
|
|
|
496
|
if ($reinit == false)
|
|
497
|
$captiveportallck = lock('captiveportal');
|
|
498
|
|
|
499
|
/* init dummynet/ipfw rules number database */
|
|
500
|
captiveportal_init_ipfw_ruleno();
|
|
501
|
|
|
502
|
/* make sure ipfw is loaded */
|
|
503
|
if (!is_module_loaded("ipfw.ko"))
|
|
504
|
filter_load_ipfw();
|
|
505
|
/* Always load dummynet now that even allowed ip and mac passthrough use it. */
|
|
506
|
if (!is_module_loaded("dummynet.ko"))
|
|
507
|
mwexec("/sbin/kldload dummynet");
|
|
508
|
|
|
509
|
$cprules = "add 65291 set 1 allow pfsync from any to any\n";
|
|
510
|
$cprules .= "add 65292 set 1 allow carp from any to any\n";
|
|
511
|
|
|
512
|
$cprules .= <<<EOD
|
|
513
|
# add 65300 set 1 skipto 65534 all from any to any not layer2
|
|
514
|
# layer 2: pass ARP
|
|
515
|
add 65301 set 1 pass layer2 mac-type arp
|
|
516
|
# pfsense requires for WPA
|
|
517
|
add 65302 set 1 pass layer2 mac-type 0x888e
|
|
518
|
add 65303 set 1 pass layer2 mac-type 0x88c7
|
|
519
|
|
|
520
|
# PPP Over Ethernet Discovery Stage
|
|
521
|
add 65304 set 1 pass layer2 mac-type 0x8863
|
|
522
|
# PPP Over Ethernet Session Stage
|
|
523
|
add 65305 set 1 pass layer2 mac-type 0x8864
|
|
524
|
# Allow WPA
|
|
525
|
add 65306 set 1 pass layer2 mac-type 0x888e
|
|
526
|
|
|
527
|
# layer 2: block anything else non-IP
|
|
528
|
add 65307 set 1 deny layer2 not mac-type ip
|
|
529
|
|
|
530
|
EOD;
|
|
531
|
|
|
532
|
$rulenum = 65310;
|
|
533
|
$ipcount = 0;
|
|
534
|
foreach ($cpips as $cpip) {
|
|
535
|
if($ipcount == 0) {
|
|
536
|
$ips = "{$cpip} ";
|
|
537
|
} else {
|
|
538
|
$ips .= "or {$cpip} ";
|
|
539
|
}
|
|
540
|
$ipcount++;
|
|
541
|
}
|
|
542
|
$ips = "{ {$ips} }";
|
|
543
|
$cprules .= "add {$rulenum} set 1 pass ip from any to {$ips} in\n";
|
|
544
|
$rulenum++;
|
|
545
|
$cprules .= "add {$rulenum} set 1 pass ip from {$ips} to any out\n";
|
|
546
|
$rulenum++;
|
|
547
|
$cprules .= "add {$rulenum} set 1 pass icmp from {$ips} to any out icmptype 0\n";
|
|
548
|
$rulenum++;
|
|
549
|
$cprules .= "add {$rulenum} set 1 pass icmp from any to {$ips} in icmptype 8 \n";
|
|
550
|
$rulenum++;
|
|
551
|
/* Allowed ips */
|
|
552
|
$cprules .= "add {$rulenum} allow ip from table(3) to any in\n";
|
|
553
|
$rulenum++;
|
|
554
|
$cprules .= "add {$rulenum} allow ip from any to table(4) out\n";
|
|
555
|
$rulenum++;
|
|
556
|
$cprules .= "add {$rulenum} pipe tablearg ip from table(5) to any in\n";
|
|
557
|
$rulenum++;
|
|
558
|
$cprules .= "add {$rulenum} pipe tablearg ip from any to table(6) out\n";
|
|
559
|
$rulenum++;
|
|
560
|
$cprules .= "add {$rulenum} allow ip from any to table(7) in\n";
|
|
561
|
$rulenum++;
|
|
562
|
$cprules .= "add {$rulenum} allow ip from table(8) to any out\n";
|
|
563
|
$rulenum++;
|
|
564
|
$cprules .= "add {$rulenum} pipe tablearg ip from any to table(9) in\n";
|
|
565
|
$rulenum++;
|
|
566
|
$cprules .= "add {$rulenum} pipe tablearg ip from table(10) to any out\n";
|
|
567
|
$rulenum++;
|
|
568
|
|
|
569
|
/* Authenticated users rules. */
|
|
570
|
if (isset($config['captiveportal']['peruserbw'])) {
|
|
571
|
$cprules .= "add {$rulenum} set 1 pipe tablearg ip from table(1) to any in\n";
|
|
572
|
$rulenum++;
|
|
573
|
$cprules .= "add {$rulenum} set 1 pipe tablearg ip from any to table(2) out\n";
|
|
574
|
$rulenum++;
|
|
575
|
} else {
|
|
576
|
$cprules .= "add {$rulenum} set 1 allow ip from table(1) to any in\n";
|
|
577
|
$rulenum++;
|
|
578
|
$cprules .= "add {$rulenum} set 1 allow ip from any to table(2) out\n";
|
|
579
|
$rulenum++;
|
|
580
|
}
|
|
581
|
|
|
582
|
$cprules .= <<<EOD
|
|
583
|
|
|
584
|
# redirect non-authenticated clients to captive portal
|
|
585
|
add 65531 set 1 fwd 127.0.0.1,8000 tcp from any to any in
|
|
586
|
# let the responses from the captive portal web server back out
|
|
587
|
add 65532 set 1 pass tcp from any to any out
|
|
588
|
# block everything else
|
|
589
|
add 65533 set 1 deny all from any to any
|
|
590
|
# pass everything else on layer2
|
|
591
|
add 65534 set 1 pass all from any to any layer2
|
|
592
|
|
|
593
|
EOD;
|
|
594
|
|
|
595
|
/* generate passthru mac database */
|
|
596
|
$cprules .= captiveportal_passthrumac_configure(true);
|
|
597
|
$cprules .= "\n";
|
|
598
|
/* allowed ipfw rules to make allowed ip work */
|
|
599
|
$cprules .= captiveportal_allowedip_configure();
|
|
600
|
|
|
601
|
/* load rules */
|
|
602
|
if ($reinit == true)
|
|
603
|
$cprules = "table all flush\nflush\n{$cprules}";
|
|
604
|
else {
|
|
605
|
$tmprules = "table 3 flush\n";
|
|
606
|
$tmprules .= "table 4 flush\n";
|
|
607
|
$tmprules .= "table 5 flush\n";
|
|
608
|
$tmprules .= "table 6 flush\n";
|
|
609
|
$tmprules .= "table 7 flush\n";
|
|
610
|
$tmprules .= "table 8 flush\n";
|
|
611
|
$tmprules .= "table 9 flush\n";
|
|
612
|
$tmprules .= "table 10 flush\n";
|
|
613
|
$tmprules .= "flush\n";
|
|
614
|
$cprules = "{$tmprules}\n{$cprules}";
|
|
615
|
}
|
|
616
|
|
|
617
|
file_put_contents("{$g['tmp_path']}/ipfw.cp.rules", $cprules);
|
|
618
|
mwexec("/sbin/ipfw -q {$g['tmp_path']}/ipfw.cp.rules", true);
|
|
619
|
@unlink("{$g['tmp_path']}/ipfw.cp.rules");
|
|
620
|
|
|
621
|
if ($reinit == false)
|
|
622
|
unlock($captiveportallck);
|
|
623
|
|
|
624
|
|
|
625
|
/* filter on layer2 as well so we can check MAC addresses */
|
|
626
|
mwexec("/sbin/sysctl net.link.ether.ipfw=1");
|
|
627
|
|
|
628
|
return $cprules;
|
|
629
|
}
|
|
630
|
|
|
631
|
/* remove clients that have been around for longer than the specified amount of time */
|
|
632
|
/* db file structure:
|
|
633
|
timestamp,ipfw_rule_no,clientip,clientmac,username,sessionid,password,session_timeout,idle_timeout,session_terminate_time */
|
|
634
|
|
|
635
|
/* (password is in Base64 and only saved when reauthentication is enabled) */
|
|
636
|
function captiveportal_prune_old() {
|
|
637
|
|
|
638
|
global $g, $config;
|
|
639
|
|
|
640
|
/* check for expired entries */
|
|
641
|
if ($config['captiveportal']['timeout'])
|
|
642
|
$timeout = $config['captiveportal']['timeout'] * 60;
|
|
643
|
else
|
|
644
|
$timeout = 0;
|
|
645
|
|
|
646
|
if ($config['captiveportal']['idletimeout'])
|
|
647
|
$idletimeout = $config['captiveportal']['idletimeout'] * 60;
|
|
648
|
else
|
|
649
|
$idletimeout = 0;
|
|
650
|
|
|
651
|
if (!$timeout && !$idletimeout && !isset($config['captiveportal']['reauthenticate']) &&
|
|
652
|
!isset($config['captiveportal']['radiussession_timeout']) && !isset($config['voucher']['enable']))
|
|
653
|
return;
|
|
654
|
|
|
655
|
$captiveportallck = lock('captiveportal');
|
|
656
|
|
|
657
|
/* read database */
|
|
658
|
$cpdb = captiveportal_read_db();
|
|
659
|
|
|
660
|
$radiusservers = captiveportal_get_radius_servers();
|
|
661
|
|
|
662
|
/* To make sure we iterate over ALL accounts on every run the count($cpdb) is moved
|
|
663
|
* outside of the loop. Otherwise the loop would evaluate count() on every iteration
|
|
664
|
* and since $i would increase and count() would decrement they would meet before we
|
|
665
|
* had a chance to iterate over all accounts.
|
|
666
|
*/
|
|
667
|
$unsetindexes = array();
|
|
668
|
$no_users = count($cpdb);
|
|
669
|
for ($i = 0; $i < $no_users; $i++) {
|
|
670
|
|
|
671
|
$timedout = false;
|
|
672
|
$term_cause = 1;
|
|
673
|
|
|
674
|
/* hard timeout? */
|
|
675
|
if ($timeout) {
|
|
676
|
if ((time() - $cpdb[$i][0]) >= $timeout) {
|
|
677
|
$timedout = true;
|
|
678
|
$term_cause = 5; // Session-Timeout
|
|
679
|
}
|
|
680
|
}
|
|
681
|
|
|
682
|
/* Session-Terminate-Time */
|
|
683
|
if (!$timedout && !empty($cpdb[$i][9])) {
|
|
684
|
if (time() >= $cpdb[$i][9]) {
|
|
685
|
$timedout = true;
|
|
686
|
$term_cause = 5; // Session-Timeout
|
|
687
|
}
|
|
688
|
}
|
|
689
|
|
|
690
|
/* check if the radius idle_timeout attribute has been set and if its set change the idletimeout to this value */
|
|
691
|
$idletimeout = (is_numeric($cpdb[$i][8])) ? $cpdb[$i][8] : $idletimeout;
|
|
692
|
/* if an idle timeout is specified, get last activity timestamp from ipfw */
|
|
693
|
if (!$timedout && $idletimeout) {
|
|
694
|
$lastact = captiveportal_get_last_activity($cpdb[$i][2]);
|
|
695
|
/* If the user has logged on but not sent any traffic they will never be logged out.
|
|
696
|
* We "fix" this by setting lastact to the login timestamp.
|
|
697
|
*/
|
|
698
|
$lastact = $lastact ? $lastact : $cpdb[$i][0];
|
|
699
|
if ($lastact && ((time() - $lastact) >= $idletimeout)) {
|
|
700
|
$timedout = true;
|
|
701
|
$term_cause = 4; // Idle-Timeout
|
|
702
|
$stop_time = $lastact; // Entry added to comply with WISPr
|
|
703
|
}
|
|
704
|
}
|
|
705
|
|
|
706
|
/* if vouchers are configured, activate session timeouts */
|
|
707
|
if (!$timedout && isset($config['voucher']['enable']) && !empty($cpdb[$i][7])) {
|
|
708
|
if (time() >= ($cpdb[$i][0] + $cpdb[$i][7])) {
|
|
709
|
$timedout = true;
|
|
710
|
$term_cause = 5; // Session-Timeout
|
|
711
|
}
|
|
712
|
}
|
|
713
|
|
|
714
|
/* if radius session_timeout is enabled and the session_timeout is not null, then check if the user should be logged out */
|
|
715
|
if (!$timedout && isset($config['captiveportal']['radiussession_timeout']) && !empty($cpdb[$i][7])) {
|
|
716
|
if (time() >= ($cpdb[$i][0] + $cpdb[$i][7])) {
|
|
717
|
$timedout = true;
|
|
718
|
$term_cause = 5; // Session-Timeout
|
|
719
|
}
|
|
720
|
}
|
|
721
|
|
|
722
|
if ($timedout) {
|
|
723
|
captiveportal_disconnect($cpdb[$i], $radiusservers,$term_cause,$stop_time);
|
|
724
|
captiveportal_logportalauth($cpdb[$i][4], $cpdb[$i][3], $cpdb[$i][2], "TIMEOUT");
|
|
725
|
$unsetindexes[$i] = $i;
|
|
726
|
}
|
|
727
|
|
|
728
|
/* do periodic RADIUS reauthentication? */
|
|
729
|
if (!$timedout && isset($config['captiveportal']['reauthenticate']) &&
|
|
730
|
!empty($radiusservers)) {
|
|
731
|
|
|
732
|
if (isset($config['captiveportal']['radacct_enable'])) {
|
|
733
|
if ($config['captiveportal']['reauthenticateacct'] == "stopstart") {
|
|
734
|
/* stop and restart accounting */
|
|
735
|
RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
|
|
736
|
$cpdb[$i][4], // username
|
|
737
|
$cpdb[$i][5], // sessionid
|
|
738
|
$cpdb[$i][0], // start time
|
|
739
|
$radiusservers,
|
|
740
|
$cpdb[$i][2], // clientip
|
|
741
|
$cpdb[$i][3], // clientmac
|
|
742
|
10); // NAS Request
|
|
743
|
exec("/sbin/ipfw table 1 entryzerostats {$cpdb[$i][2]}");
|
|
744
|
exec("/sbin/ipfw table 2 entryzerostats {$cpdb[$i][2]}");
|
|
745
|
RADIUS_ACCOUNTING_START($cpdb[$i][1], // ruleno
|
|
746
|
$cpdb[$i][4], // username
|
|
747
|
$cpdb[$i][5], // sessionid
|
|
748
|
$radiusservers,
|
|
749
|
$cpdb[$i][2], // clientip
|
|
750
|
$cpdb[$i][3]); // clientmac
|
|
751
|
} else if ($config['captiveportal']['reauthenticateacct'] == "interimupdate") {
|
|
752
|
RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
|
|
753
|
$cpdb[$i][4], // username
|
|
754
|
$cpdb[$i][5], // sessionid
|
|
755
|
$cpdb[$i][0], // start time
|
|
756
|
$radiusservers,
|
|
757
|
$cpdb[$i][2], // clientip
|
|
758
|
$cpdb[$i][3], // clientmac
|
|
759
|
10, // NAS Request
|
|
760
|
true); // Interim Updates
|
|
761
|
}
|
|
762
|
}
|
|
763
|
|
|
764
|
/* check this user against RADIUS again */
|
|
765
|
$auth_list = RADIUS_AUTHENTICATION($cpdb[$i][4], // username
|
|
766
|
base64_decode($cpdb[$i][6]), // password
|
|
767
|
$radiusservers,
|
|
768
|
$cpdb[$i][2], // clientip
|
|
769
|
$cpdb[$i][3], // clientmac
|
|
770
|
$cpdb[$i][1]); // ruleno
|
|
771
|
|
|
772
|
if ($auth_list['auth_val'] == 3) {
|
|
773
|
captiveportal_disconnect($cpdb[$i], $radiusservers, 17);
|
|
774
|
captiveportal_logportalauth($cpdb[$i][4], $cpdb[$i][3], $cpdb[$i][2], "RADIUS_DISCONNECT", $auth_list['reply_message']);
|
|
775
|
$unsetindexes[$i] = $i;
|
|
776
|
}
|
|
777
|
}
|
|
778
|
}
|
|
779
|
/* This is a kludge to overcome some php weirdness */
|
|
780
|
foreach($unsetindexes as $unsetindex)
|
|
781
|
unset($cpdb[$unsetindex]);
|
|
782
|
|
|
783
|
/* write database */
|
|
784
|
captiveportal_write_db($cpdb);
|
|
785
|
|
|
786
|
unlock($captiveportallck);
|
|
787
|
}
|
|
788
|
|
|
789
|
/* remove a single client according to the DB entry */
|
|
790
|
function captiveportal_disconnect($dbent, $radiusservers,$term_cause = 1,$stop_time = null) {
|
|
791
|
|
|
792
|
global $g, $config;
|
|
793
|
|
|
794
|
$stop_time = (empty($stop_time)) ? time() : $stop_time;
|
|
795
|
|
|
796
|
/* this client needs to be deleted - remove ipfw rules */
|
|
797
|
if (isset($config['captiveportal']['radacct_enable']) && !empty($radiusservers)) {
|
|
798
|
RADIUS_ACCOUNTING_STOP($dbent[1], // ruleno
|
|
799
|
$dbent[4], // username
|
|
800
|
$dbent[5], // sessionid
|
|
801
|
$dbent[0], // start time
|
|
802
|
$radiusservers,
|
|
803
|
$dbent[2], // clientip
|
|
804
|
$dbent[3], // clientmac
|
|
805
|
$term_cause, // Acct-Terminate-Cause
|
|
806
|
false,
|
|
807
|
$stop_time);
|
|
808
|
}
|
|
809
|
/* Delete client's ip entry from tables 3 and 4. */
|
|
810
|
mwexec("/sbin/ipfw table 1 delete {$dbent[2]}");
|
|
811
|
mwexec("/sbin/ipfw table 2 delete {$dbent[2]}");
|
|
812
|
|
|
813
|
/* Release the ruleno so it can be reallocated to new clients. */
|
|
814
|
captiveportal_free_ipfw_ruleno($dbent[1]);
|
|
815
|
|
|
816
|
/*
|
|
817
|
* These are the pipe numbers we use to control traffic shaping for each logged in user via captive portal
|
|
818
|
* We could get an error if the pipe doesn't exist but everything should still be fine
|
|
819
|
*/
|
|
820
|
if (isset($config['captiveportal']['peruserbw'])) {
|
|
821
|
mwexec("/sbin/ipfw pipe " . ($dbent[1]+20000) . " delete");
|
|
822
|
mwexec("/sbin/ipfw pipe " . ($dbent[1]+20001) . " delete");
|
|
823
|
}
|
|
824
|
|
|
825
|
/* XXX: Redundant?! Ensure all pf(4) states are killed. */
|
|
826
|
mwexec("pfctl -k {$dbent[2]}");
|
|
827
|
mwexec("pfctl -K {$dbent[2]}");
|
|
828
|
|
|
829
|
}
|
|
830
|
|
|
831
|
/* remove a single client by ipfw rule number */
|
|
832
|
function captiveportal_disconnect_client($id,$term_cause = 1) {
|
|
833
|
|
|
834
|
global $g, $config;
|
|
835
|
|
|
836
|
$captiveportallck = lock('captiveportal');
|
|
837
|
|
|
838
|
/* read database */
|
|
839
|
$cpdb = captiveportal_read_db();
|
|
840
|
$radiusservers = captiveportal_get_radius_servers();
|
|
841
|
|
|
842
|
/* find entry */
|
|
843
|
$tmpindex = 0;
|
|
844
|
$cpdbcount = count($cpdb);
|
|
845
|
for ($i = 0; $i < $cpdbcount; $i++) {
|
|
846
|
if ($cpdb[$i][1] == $id) {
|
|
847
|
captiveportal_disconnect($cpdb[$i], $radiusservers, $term_cause);
|
|
848
|
captiveportal_logportalauth($cpdb[$i][4], $cpdb[$i][3], $cpdb[$i][2], "DISCONNECT");
|
|
849
|
unset($cpdb[$i]);
|
|
850
|
break;
|
|
851
|
}
|
|
852
|
}
|
|
853
|
|
|
854
|
/* write database */
|
|
855
|
captiveportal_write_db($cpdb);
|
|
856
|
|
|
857
|
unlock($captiveportallck);
|
|
858
|
}
|
|
859
|
|
|
860
|
/* send RADIUS acct stop for all current clients */
|
|
861
|
function captiveportal_radius_stop_all($lock = false) {
|
|
862
|
global $g, $config;
|
|
863
|
|
|
864
|
if (!isset($config['captiveportal']['radacct_enable']))
|
|
865
|
return;
|
|
866
|
|
|
867
|
if (!$lock)
|
|
868
|
$captiveportallck = lock('captiveportal');
|
|
869
|
|
|
870
|
$cpdb = captiveportal_read_db();
|
|
871
|
|
|
872
|
$radiusservers = captiveportal_get_radius_servers();
|
|
873
|
if (!empty($radiusservers)) {
|
|
874
|
for ($i = 0; $i < count($cpdb); $i++) {
|
|
875
|
RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
|
|
876
|
$cpdb[$i][4], // username
|
|
877
|
$cpdb[$i][5], // sessionid
|
|
878
|
$cpdb[$i][0], // start time
|
|
879
|
$radiusservers,
|
|
880
|
$cpdb[$i][2], // clientip
|
|
881
|
$cpdb[$i][3], // clientmac
|
|
882
|
7); // Admin Reboot
|
|
883
|
}
|
|
884
|
}
|
|
885
|
if (!$lock)
|
|
886
|
unlock($captiveportallck);
|
|
887
|
}
|
|
888
|
|
|
889
|
function captiveportal_passthrumac_configure_entry($macent) {
|
|
890
|
$rules = "";
|
|
891
|
$enBwup = isset($macent['bw_up']);
|
|
892
|
$enBwdown = isset($macent['bw_down']);
|
|
893
|
$actionup = "allow";
|
|
894
|
$actiondown = "allow";
|
|
895
|
|
|
896
|
if ($enBwup && $enBwdown)
|
|
897
|
$ruleno = captiveportal_get_next_ipfw_ruleno(2000, 49899, true);
|
|
898
|
else
|
|
899
|
$ruleno = captiveportal_get_next_ipfw_ruleno(2000, 49899, false);
|
|
900
|
|
|
901
|
if ($enBwup) {
|
|
902
|
$bw_up = $ruleno + 20000;
|
|
903
|
$rules .= "pipe {$bw_up} config bw {$macent['bw_up']}Kbit/s queue 100\n";
|
|
904
|
$actionup = "pipe {$bw_up}";
|
|
905
|
}
|
|
906
|
if ($enBwdown) {
|
|
907
|
$bw_down = $ruleno + 20001;
|
|
908
|
$rules .= "pipe {$bw_down} config bw {$macent['bw_down']}Kbit/s queue 100\n";
|
|
909
|
$actiondown = "pipe {$bw_down}";
|
|
910
|
}
|
|
911
|
$rules .= "add {$ruleno} {$actiondown} ip from any to any MAC {$macent['mac']} any\n";
|
|
912
|
$ruleno++;
|
|
913
|
$rules .= "add {$ruleno} {$actionup} ip from any to any MAC any {$macent['mac']}\n";
|
|
914
|
|
|
915
|
return $rules;
|
|
916
|
}
|
|
917
|
|
|
918
|
function captiveportal_passthrumac_configure($lock = false) {
|
|
919
|
global $config, $g;
|
|
920
|
|
|
921
|
$rules = "";
|
|
922
|
|
|
923
|
if (is_array($config['captiveportal']['passthrumac'])) {
|
|
924
|
$macdb = array();
|
|
925
|
foreach ($config['captiveportal']['passthrumac'] as $macent) {
|
|
926
|
$rules .= captiveportal_passthrumac_configure_entry($macent);
|
|
927
|
$macdb[$macent['mac']]['active'] = true;
|
|
928
|
|
|
929
|
}
|
|
930
|
}
|
|
931
|
|
|
932
|
return $rules;
|
|
933
|
}
|
|
934
|
|
|
935
|
function captiveportal_passthrumac_findbyname($username) {
|
|
936
|
global $config;
|
|
937
|
|
|
938
|
if (is_array($config['captiveportal']['passthrumac'])) {
|
|
939
|
foreach ($config['captiveportal']['passthrumac'] as $macent) {
|
|
940
|
if ($macent['username'] == $username)
|
|
941
|
return $macent;
|
|
942
|
}
|
|
943
|
}
|
|
944
|
return NULL;
|
|
945
|
}
|
|
946
|
|
|
947
|
/*
|
|
948
|
* table (3=IN)/(4=OUT) hold allowed ip's without bw limits
|
|
949
|
* table (5=IN)/(6=OUT) hold allowed ip's with bw limit.
|
|
950
|
*/
|
|
951
|
function captiveportal_allowedip_configure_entry($ipent) {
|
|
952
|
|
|
953
|
$rules = "";
|
|
954
|
$enBwup = isset($ipent['bw_up']);
|
|
955
|
$enBwdown = isset($ipent['bw_down']);
|
|
956
|
$bw_up = "";
|
|
957
|
$bw_down = "";
|
|
958
|
$tablein = array();
|
|
959
|
$tableout = array();
|
|
960
|
|
|
961
|
if ($enBwup && $enBwdown)
|
|
962
|
$ruleno = captiveportal_get_next_ipfw_ruleno(2000, 49899, true);
|
|
963
|
else
|
|
964
|
$ruleno = captiveportal_get_next_ipfw_ruleno(2000, 49899, false);
|
|
965
|
|
|
966
|
if ($ipent['dir'] == "from") {
|
|
967
|
if ($enBwup)
|
|
968
|
$tablein[] = 5;
|
|
969
|
else
|
|
970
|
$tablein[] = 3;
|
|
971
|
if ($enBwdown)
|
|
972
|
$tableout[] = 6;
|
|
973
|
else
|
|
974
|
$tableout[] = 4;
|
|
975
|
} else if ($ipent['dir'] == "to") {
|
|
976
|
if ($enBwup)
|
|
977
|
$tablein[] = 9;
|
|
978
|
else
|
|
979
|
$tablein[] = 7;
|
|
980
|
if ($enBwdown)
|
|
981
|
$tableout[] = 10;
|
|
982
|
else
|
|
983
|
$tableout[] = 8;
|
|
984
|
} else if ($ipent['dir'] == "both") {
|
|
985
|
if ($enBwup) {
|
|
986
|
$tablein[] = 5;
|
|
987
|
$tablein[] = 9;
|
|
988
|
} else {
|
|
989
|
$tablein[] = 3;
|
|
990
|
$tablein[] = 7;
|
|
991
|
}
|
|
992
|
if ($enBwdown) {
|
|
993
|
$tableout[] = 6;
|
|
994
|
$tableout[] = 10;
|
|
995
|
} else {
|
|
996
|
$tableout[] = 4;
|
|
997
|
$tableout[] = 8;
|
|
998
|
}
|
|
999
|
}
|
|
1000
|
if ($enBwup) {
|
|
1001
|
$bw_up = $ruleno + 20000;
|
|
1002
|
$rules .= "pipe {$bw_up} config bw {$ipent['bw_up']}Kbit/s queue 100\n";
|
|
1003
|
}
|
|
1004
|
$subnet = "";
|
|
1005
|
if (!empty($ipent['sn']))
|
|
1006
|
$subnet = "/{$ipent['sn']}";
|
|
1007
|
foreach ($tablein as $table)
|
|
1008
|
$rules .= "table {$table} add {$ipent['ip']}{$subnet} {$bw_up}\n";
|
|
1009
|
if ($enBwdown) {
|
|
1010
|
$bw_down = $ruleno + 20001;
|
|
1011
|
$rules .= "pipe {$bw_down} config bw {$ipent['bw_down']}Kbit/s queue 100\n";
|
|
1012
|
}
|
|
1013
|
foreach ($tableout as $table)
|
|
1014
|
$rules .= "table {$table} add {$ipent['ip']}{$subnet} {$bw_down}\n";
|
|
1015
|
|
|
1016
|
return $rules;
|
|
1017
|
}
|
|
1018
|
|
|
1019
|
function captiveportal_allowedip_configure() {
|
|
1020
|
global $config, $g;
|
|
1021
|
|
|
1022
|
$rules = "";
|
|
1023
|
if (is_array($config['captiveportal']['allowedip'])) {
|
|
1024
|
foreach ($config['captiveportal']['allowedip'] as $ipent) {
|
|
1025
|
$rules .= captiveportal_allowedip_configure_entry($ipent);
|
|
1026
|
}
|
|
1027
|
}
|
|
1028
|
|
|
1029
|
return $rules;
|
|
1030
|
}
|
|
1031
|
|
|
1032
|
/* get last activity timestamp given client IP address */
|
|
1033
|
function captiveportal_get_last_activity($ip) {
|
|
1034
|
|
|
1035
|
$ipfwoutput = "";
|
|
1036
|
|
|
1037
|
exec("/sbin/ipfw table 1 entrystats {$ip} 2>/dev/null", $ipfwoutput);
|
|
1038
|
/* Reading only from one of the tables is enough of approximation. */
|
|
1039
|
if ($ipfwoutput[0]) {
|
|
1040
|
$ri = explode(" ", $ipfwoutput[0]);
|
|
1041
|
if ($ri[4])
|
|
1042
|
return $ri[4];
|
|
1043
|
}
|
|
1044
|
|
|
1045
|
return 0;
|
|
1046
|
}
|
|
1047
|
|
|
1048
|
/* read RADIUS servers into array */
|
|
1049
|
function captiveportal_get_radius_servers() {
|
|
1050
|
|
|
1051
|
global $g;
|
|
1052
|
|
|
1053
|
if (file_exists("{$g['vardb_path']}/captiveportal_radius.db")) {
|
|
1054
|
$radiusservers = array();
|
|
1055
|
$cpradiusdb = file("{$g['vardb_path']}/captiveportal_radius.db",
|
|
1056
|
FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
|
|
1057
|
if ($cpradiusdb)
|
|
1058
|
foreach($cpradiusdb as $cpradiusentry) {
|
|
1059
|
$line = trim($cpradiusentry);
|
|
1060
|
if ($line) {
|
|
1061
|
$radsrv = array();
|
|
1062
|
list($radsrv['ipaddr'],$radsrv['port'],$radsrv['acctport'],$radsrv['key']) = explode(",",$line);
|
|
1063
|
$radiusservers[] = $radsrv;
|
|
1064
|
}
|
|
1065
|
}
|
|
1066
|
|
|
1067
|
return $radiusservers;
|
|
1068
|
}
|
|
1069
|
|
|
1070
|
return false;
|
|
1071
|
}
|
|
1072
|
|
|
1073
|
/* log successful captive portal authentication to syslog */
|
|
1074
|
/* part of this code from php.net */
|
|
1075
|
function captiveportal_logportalauth($user,$mac,$ip,$status, $message = null) {
|
|
1076
|
$message = trim($message);
|
|
1077
|
// Log it
|
|
1078
|
if (!$message)
|
|
1079
|
$message = "$status: $user, $mac, $ip";
|
|
1080
|
else
|
|
1081
|
$message = "$status: $user, $mac, $ip, $message";
|
|
1082
|
captiveportal_syslog($message);
|
|
1083
|
closelog();
|
|
1084
|
}
|
|
1085
|
|
|
1086
|
/* log simple messages to syslog */
|
|
1087
|
function captiveportal_syslog($message) {
|
|
1088
|
define_syslog_variables();
|
|
1089
|
$message = trim($message);
|
|
1090
|
openlog("logportalauth", LOG_PID, LOG_LOCAL4);
|
|
1091
|
// Log it
|
|
1092
|
syslog(LOG_INFO, $message);
|
|
1093
|
closelog();
|
|
1094
|
}
|
|
1095
|
|
|
1096
|
function radius($username,$password,$clientip,$clientmac,$type) {
|
|
1097
|
global $g, $config;
|
|
1098
|
|
|
1099
|
/* Start locking from the beginning of an authentication session */
|
|
1100
|
$captiveportallck = lock('captiveportal');
|
|
1101
|
|
|
1102
|
$ruleno = captiveportal_get_next_ipfw_ruleno();
|
|
1103
|
|
|
1104
|
/* If the pool is empty, return appropriate message and fail authentication */
|
|
1105
|
if (is_null($ruleno)) {
|
|
1106
|
$auth_list = array();
|
|
1107
|
$auth_list['auth_val'] = 1;
|
|
1108
|
$auth_list['error'] = "System reached maximum login capacity";
|
|
1109
|
unlock($captiveportallck);
|
|
1110
|
return $auth_list;
|
|
1111
|
}
|
|
1112
|
|
|
1113
|
/*
|
|
1114
|
* Drop the lock since radius takes some time to finish.
|
|
1115
|
* The implementation is reentrant so we gain speed with this.
|
|
1116
|
*/
|
|
1117
|
unlock($captiveportallck);
|
|
1118
|
|
|
1119
|
$radiusservers = captiveportal_get_radius_servers();
|
|
1120
|
|
|
1121
|
$auth_list = RADIUS_AUTHENTICATION($username,
|
|
1122
|
$password,
|
|
1123
|
$radiusservers,
|
|
1124
|
$clientip,
|
|
1125
|
$clientmac,
|
|
1126
|
$ruleno);
|
|
1127
|
|
|
1128
|
$captiveportallck = lock('captiveportal');
|
|
1129
|
|
|
1130
|
if ($auth_list['auth_val'] == 2) {
|
|
1131
|
captiveportal_logportalauth($username,$clientmac,$clientip,$type);
|
|
1132
|
$sessionid = portal_allow($clientip,
|
|
1133
|
$clientmac,
|
|
1134
|
$username,
|
|
1135
|
$password,
|
|
1136
|
$auth_list,
|
|
1137
|
$ruleno);
|
|
1138
|
}
|
|
1139
|
|
|
1140
|
unlock($captiveportallck);
|
|
1141
|
|
|
1142
|
return $auth_list;
|
|
1143
|
|
|
1144
|
}
|
|
1145
|
|
|
1146
|
/* read captive portal DB into array */
|
|
1147
|
function captiveportal_read_db() {
|
|
1148
|
|
|
1149
|
global $g;
|
|
1150
|
|
|
1151
|
$cpdb = array();
|
|
1152
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "r");
|
|
1153
|
if ($fd) {
|
|
1154
|
while (!feof($fd)) {
|
|
1155
|
$line = trim(fgets($fd));
|
|
1156
|
if ($line) {
|
|
1157
|
$cpdb[] = explode(",", $line);
|
|
1158
|
}
|
|
1159
|
}
|
|
1160
|
fclose($fd);
|
|
1161
|
}
|
|
1162
|
return $cpdb;
|
|
1163
|
}
|
|
1164
|
|
|
1165
|
/* write captive portal DB */
|
|
1166
|
function captiveportal_write_db($cpdb) {
|
|
1167
|
|
|
1168
|
global $g;
|
|
1169
|
|
|
1170
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "w");
|
|
1171
|
if ($fd) {
|
|
1172
|
foreach ($cpdb as $cpent) {
|
|
1173
|
fwrite($fd, join(",", $cpent) . "\n");
|
|
1174
|
}
|
|
1175
|
fclose($fd);
|
|
1176
|
}
|
|
1177
|
}
|
|
1178
|
|
|
1179
|
function captiveportal_write_elements() {
|
|
1180
|
global $g, $config;
|
|
1181
|
|
|
1182
|
/* delete any existing elements */
|
|
1183
|
if (is_dir($g['captiveportal_element_path'])) {
|
|
1184
|
$dh = opendir($g['captiveportal_element_path']);
|
|
1185
|
while (($file = readdir($dh)) !== false) {
|
|
1186
|
if ($file != "." && $file != "..")
|
|
1187
|
unlink($g['captiveportal_element_path'] . "/" . $file);
|
|
1188
|
}
|
|
1189
|
closedir($dh);
|
|
1190
|
} else
|
|
1191
|
@mkdir($g['captiveportal_element_path']);
|
|
1192
|
|
|
1193
|
if (is_array($config['captiveportal']['element'])) {
|
|
1194
|
conf_mount_rw();
|
|
1195
|
foreach ($config['captiveportal']['element'] as $data) {
|
|
1196
|
$fd = @fopen($g['captiveportal_element_path'] . '/' . $data['name'], "wb");
|
|
1197
|
if (!$fd) {
|
|
1198
|
printf("Error: cannot open '{$data['name']}' in captiveportal_write_elements().\n");
|
|
1199
|
return 1;
|
|
1200
|
}
|
|
1201
|
$decoded = base64_decode($data['content']);
|
|
1202
|
fwrite($fd,$decoded);
|
|
1203
|
fclose($fd);
|
|
1204
|
unlink_if_exists("{$g['captiveportal_path']}/{$data['name']}");
|
|
1205
|
unlink_if_exists("{$g['captiveportal_path']}/{$data['name']}");
|
|
1206
|
mwexec("cd {$g['captiveportal_path']}/ && ln -s {$g['captiveportal_element_path']}/{$data['name']} {$data['name']}");
|
|
1207
|
}
|
|
1208
|
conf_mount_ro();
|
|
1209
|
}
|
|
1210
|
|
|
1211
|
return 0;
|
|
1212
|
}
|
|
1213
|
|
|
1214
|
function captiveportal_init_ipfw_ruleno($rulenos_start = 2000, $rulenos_range_max = 49899) {
|
|
1215
|
global $g;
|
|
1216
|
|
|
1217
|
@unlink("{$g['vardb_path']}/captiveportal.rules");
|
|
1218
|
$rules = array_pad(array(), $rulenos_range_max - $rulenos_start, false);
|
|
1219
|
file_put_contents("{$g['vardb_path']}/captiveportal.rules", serialize($rules));
|
|
1220
|
}
|
|
1221
|
|
|
1222
|
/*
|
|
1223
|
* This function will calculate the lowest free firewall ruleno
|
|
1224
|
* within the range specified based on the actual logged on users
|
|
1225
|
*
|
|
1226
|
*/
|
|
1227
|
function captiveportal_get_next_ipfw_ruleno($rulenos_start = 2000, $rulenos_range_max = 49899, $usebw = false) {
|
|
1228
|
global $config, $g;
|
|
1229
|
|
|
1230
|
if(!isset($config['captiveportal']['enable']))
|
|
1231
|
return NULL;
|
|
1232
|
|
|
1233
|
$ruleno = 0;
|
|
1234
|
if (file_exists("{$g['vardb_path']}/captiveportal.rules")) {
|
|
1235
|
$rules = unserialize(file_get_contents("{$g['vardb_path']}/captiveportal.rules"));
|
|
1236
|
for ($ridx = 2; $ridx < ($rulenos_range_max - $rulenos_start); $ridx++) {
|
|
1237
|
if ($rules[$ridx]) {
|
|
1238
|
/*
|
|
1239
|
* This allows our traffic shaping pipes to be the in pipe the same as ruleno
|
|
1240
|
* and the out pipe ruleno + 1. This removes limitation that where present in
|
|
1241
|
* previous version of the peruserbw.
|
|
1242
|
*/
|
|
1243
|
if (isset($config['captiveportal']['peruserbw']))
|
|
1244
|
$ridx++;
|
|
1245
|
continue;
|
|
1246
|
}
|
|
1247
|
$ruleno = $ridx;
|
|
1248
|
$rules[$ridx] = "used";
|
|
1249
|
if (isset($config['captiveportal']['peruserbw']) || $usebw == true)
|
|
1250
|
$rules[++$ridx] = "used";
|
|
1251
|
break;
|
|
1252
|
}
|
|
1253
|
} else {
|
|
1254
|
$rules = array_pad(array(), $rulenos_range_max - $rulenos_start, false);
|
|
1255
|
$rules[2] = "used";
|
|
1256
|
$ruleno = 2;
|
|
1257
|
}
|
|
1258
|
file_put_contents("{$g['vardb_path']}/captiveportal.rules", serialize($rules));
|
|
1259
|
return $ruleno;
|
|
1260
|
}
|
|
1261
|
|
|
1262
|
function captiveportal_free_ipfw_ruleno($ruleno, $usedbw = false) {
|
|
1263
|
global $config, $g;
|
|
1264
|
|
|
1265
|
if(!isset($config['captiveportal']['enable']))
|
|
1266
|
return NULL;
|
|
1267
|
|
|
1268
|
if (file_exists("{$g['vardb_path']}/captiveportal.rules")) {
|
|
1269
|
$rules = unserialize(file_get_contents("{$g['vardb_path']}/captiveportal.rules"));
|
|
1270
|
$rules[$ruleno] = false;
|
|
1271
|
if (isset($config['captiveportal']['peruserbw']) || $usedbw == true)
|
|
1272
|
$rules[++$ruleno] = false;
|
|
1273
|
file_put_contents("{$g['vardb_path']}/captiveportal.rules", serialize($rules));
|
|
1274
|
}
|
|
1275
|
}
|
|
1276
|
|
|
1277
|
function captiveportal_get_ipfw_passthru_ruleno($value) {
|
|
1278
|
global $config, $g;
|
|
1279
|
|
|
1280
|
if(!isset($config['captiveportal']['enable']))
|
|
1281
|
return NULL;
|
|
1282
|
|
|
1283
|
if (file_exists("{$g['vardb_path']}/captiveportal.rules")) {
|
|
1284
|
$rules = unserialize(file_get_contents("{$g['vardb_path']}/captiveportal.rules"));
|
|
1285
|
$ruleno = intval(`/sbin/ipfw show | /usr/bin/grep {$value} | /usr/bin/grep -v grep | /usr/bin/cut -d " " -f 1 | /usr/bin/head -n 1`);
|
|
1286
|
if ($rules[$ruleno])
|
|
1287
|
return $ruleno;
|
|
1288
|
}
|
|
1289
|
|
|
1290
|
return NULL;
|
|
1291
|
}
|
|
1292
|
|
|
1293
|
/**
|
|
1294
|
* This function will calculate the traffic produced by a client
|
|
1295
|
* based on its firewall rule
|
|
1296
|
*
|
|
1297
|
* Point of view: NAS
|
|
1298
|
*
|
|
1299
|
* Input means: from the client
|
|
1300
|
* Output means: to the client
|
|
1301
|
*
|
|
1302
|
*/
|
|
1303
|
|
|
1304
|
function getVolume($ip) {
|
|
1305
|
|
|
1306
|
$volume = array();
|
|
1307
|
|
|
1308
|
// Initialize vars properly, since we don't want NULL vars
|
|
1309
|
$volume['input_pkts'] = $volume['input_bytes'] = $volume['output_pkts'] = $volume['output_bytes'] = 0 ;
|
|
1310
|
|
|
1311
|
// Ingress
|
|
1312
|
$ipfwin = "";
|
|
1313
|
$ipfwout = "";
|
|
1314
|
$matchesin = "";
|
|
1315
|
$matchesout = "";
|
|
1316
|
exec("/sbin/ipfw table 1 entrystats {$ip}", $ipfwin);
|
|
1317
|
if ($ipfwin[0]) {
|
|
1318
|
$ipfwin = split(" ", $ipfwin[0]);
|
|
1319
|
$volume['input_pkts'] = $ipfwin[2];
|
|
1320
|
$volume['input_bytes'] = $ipfwin[3];
|
|
1321
|
}
|
|
1322
|
|
|
1323
|
exec("/sbin/ipfw table 2 entrystats {$ip}", $ipfwout);
|
|
1324
|
if ($ipfwout[0]) {
|
|
1325
|
$ipfwout = split(" ", $ipfwout[0]);
|
|
1326
|
$volume['output_pkts'] = $ipfwout[2];
|
|
1327
|
$volume['output_bytes'] = $ipfwout[3];
|
|
1328
|
}
|
|
1329
|
|
|
1330
|
return $volume;
|
|
1331
|
}
|
|
1332
|
|
|
1333
|
/**
|
|
1334
|
* Get the NAS-Identifier
|
|
1335
|
*
|
|
1336
|
* We will use our local hostname to make up the nas_id
|
|
1337
|
*/
|
|
1338
|
function getNasID()
|
|
1339
|
{
|
|
1340
|
$nasId = "";
|
|
1341
|
exec("/bin/hostname", $nasId);
|
|
1342
|
if(!$nasId[0])
|
|
1343
|
$nasId[0] = "{$g['product_name']}";
|
|
1344
|
return $nasId[0];
|
|
1345
|
}
|
|
1346
|
|
|
1347
|
/**
|
|
1348
|
* Get the NAS-IP-Address based on the current wan address
|
|
1349
|
*
|
|
1350
|
* Use functions in interfaces.inc to find this out
|
|
1351
|
*
|
|
1352
|
*/
|
|
1353
|
|
|
1354
|
function getNasIP()
|
|
1355
|
{
|
|
1356
|
global $config;
|
|
1357
|
|
|
1358
|
if (empty($config['captiveportal']['radiussrcip_attribute']))
|
|
1359
|
$nasIp = get_interface_ip();
|
|
1360
|
else {
|
|
1361
|
if (is_ipaddr($config['captiveportal']['radiussrcip_attribute']))
|
|
1362
|
$nasIp = $config['captiveportal']['radiussrcip_attribute'];
|
|
1363
|
else
|
|
1364
|
$nasIp = get_interface_ip($config['captiveportal']['radiussrcip_attribute']);
|
|
1365
|
}
|
|
1366
|
|
|
1367
|
if(!is_ipaddr($nasIp))
|
|
1368
|
$nasIp = "0.0.0.0";
|
|
1369
|
|
|
1370
|
return $nasIp;
|
|
1371
|
}
|
|
1372
|
|
|
1373
|
function portal_ip_from_client_ip($cliip) {
|
|
1374
|
global $config;
|
|
1375
|
|
|
1376
|
$interfaces = explode(",", $config['captiveportal']['interface']);
|
|
1377
|
foreach ($interfaces as $cpif) {
|
|
1378
|
$ip = get_interface_ip($cpif);
|
|
1379
|
$sn = get_interface_subnet($cpif);
|
|
1380
|
if (ip_in_subnet($cliip, "{$ip}/{$sn}"))
|
|
1381
|
return $ip;
|
|
1382
|
}
|
|
1383
|
|
|
1384
|
// doesn't match up to any particular interface
|
|
1385
|
// so let's set the portal IP to what PHP says
|
|
1386
|
// the server IP issuing the request is.
|
|
1387
|
// allows same behavior as 1.2.x where IP isn't
|
|
1388
|
// in the subnet of any CP interface (static routes, etc.)
|
|
1389
|
// rather than forcing to DNS hostname resolution
|
|
1390
|
$ip = $_SERVER['SERVER_ADDR'];
|
|
1391
|
if (is_ipaddr($ip))
|
|
1392
|
return $ip;
|
|
1393
|
|
|
1394
|
return false;
|
|
1395
|
}
|
|
1396
|
|
|
1397
|
?>
|