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5b237745
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Scott Ullrich
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<?php
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/*
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captiveportal.inc
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3db19cf1
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Scott Ullrich
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part of m0n0wall (http://m0n0.ch/wall)
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9699028a
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Scott Ullrich
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Copyright (C) 2003-2005 Manuel Kasper <mk@neon1.net>.
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5b237745
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Scott Ullrich
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All rights reserved.
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3db19cf1
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Scott Ullrich
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5b237745
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Scott Ullrich
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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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3db19cf1
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Scott Ullrich
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5b237745
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Scott Ullrich
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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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3db19cf1
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Scott Ullrich
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5b237745
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Scott Ullrich
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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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3db19cf1
|
Scott Ullrich
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5b237745
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Scott Ullrich
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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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ca83c6ea
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Scott Ullrich
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9699028a
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Scott Ullrich
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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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*/
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3db19cf1
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Scott Ullrich
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5b237745
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Scott Ullrich
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/* include all configuration functions */
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require_once("functions.inc");
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3db19cf1
|
Scott Ullrich
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require_once("radius_authentication.inc");
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5b237745
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Scott Ullrich
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require_once("radius_accounting.inc") ;
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function captiveportal_configure() {
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global $config, $g;
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3db19cf1
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Scott Ullrich
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if (isset($config['captiveportal']['enable']) &&
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(($config['captiveportal']['interface'] == "lan") ||
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isset($config['interfaces'][$config['captiveportal']['interface']]['enable']))) {
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if ($g['booting'])
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echo "Starting captive portal... ";
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5b237745
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Scott Ullrich
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/* kill any running mini_httpd */
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c6c92abf
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Scott Ullrich
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killbypid("{$g['varrun_path']}/mini_httpd.cp.pid");
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killbypid("{$g['varrun_path']}/mini_httpd.cps.pid");
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/* kill any running minicron */
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killbypid("{$g['varrun_path']}/minicron.pid");
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3db19cf1
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Scott Ullrich
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/* generate ipfw rules */
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$cprules = captiveportal_rules_generate();
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/* make sure ipfw is loaded */
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mwexec("/sbin/kldload ipfw");
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/* stop accounting on all clients */
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Scott Ullrich
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captiveportal_radius_stop_all();
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5b237745
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/* remove old information */
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unlink_if_exists("{$g['vardb_path']}/captiveportal.nextrule");
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unlink_if_exists("{$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("{$g['vardb_path']}/captiveportal_radius.db");
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3db19cf1
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Scott Ullrich
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/* write portal page */
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if ($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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$htmltext = <<<EOD
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<html>
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<head>
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61b040ce
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Scott Ullrich
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<title>pfSense captive portal</title>
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5b237745
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</head>
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3db19cf1
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Scott Ullrich
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<body>
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61b040ce
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Scott Ullrich
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<h2>pfSense captive portal</h2>
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407a29ca
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Scott Ullrich
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Welcome to the pfSense Captive Portal! This is the default page since a custom page has not been defined.
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<form method="post" action="$PORTAL_ACTION$">
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<table>
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<tr><td>Username:</td><td><input name="auth_user" type="text"></td></tr>
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<tr><td>Password:</td><td><input name="auth_pass" type="password"></td></tr>
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<tr><td colspan="2">
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<input name="redirurl" type="hidden" value="$PORTAL_REDIRURL$">
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<input name="accept" type="submit" value="Continue">
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</td></tr>
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</table>
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</form>
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ff57566f
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Scott Ullrich
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<form method="post" action="\$PORTAL_ACTION\$">
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3db19cf1
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Scott Ullrich
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<input name="accept" type="submit" value="Continue">
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<input name="redirurl" type="hidden" value="\$PORTAL_REDIRURL\$">
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5b237745
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Scott Ullrich
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</form>
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</body>
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</html>
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EOD;
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}
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$fd = @fopen("{$g['varetc_path']}/captiveportal.html", "w");
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if ($fd) {
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fwrite($fd, $htmltext);
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Scott Ullrich
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fclose($fd);
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}
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Scott Ullrich
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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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<head>
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<title>Authentication error</title>
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</head>
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<body>
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<font color="#cc0000"><h2>Authentication error</h2></font>
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<b>
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Username and/or password invalid.
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<br><br>
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<a href="javascript:history.back()">Go back</a>
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</b>
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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 ($fd) {
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fwrite($fd, $errtext);
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3db19cf1
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Scott Ullrich
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fclose($fd);
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}
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3db19cf1
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Scott Ullrich
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/* load rules */
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mwexec("/sbin/ipfw -f delete set 1");
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mwexec("/sbin/ipfw -f delete set 2");
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mwexec("/sbin/ipfw -f delete set 3");
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/* XXX - seems like ipfw cannot accept rules directly on stdin,
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so we have to write them to a temporary file first */
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$fd = @fopen("{$g['tmp_path']}/ipfw.cp.rules", "w");
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if (!$fd) {
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printf("Cannot open ipfw.cp.rules in captiveportal_configure()\n");
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return 1;
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}
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fwrite($fd, $cprules);
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fclose($fd);
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mwexec("/sbin/ipfw {$g['tmp_path']}/ipfw.cp.rules");
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unlink("{$g['tmp_path']}/ipfw.cp.rules");
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/* filter on layer2 as well so we can check MAC addresses */
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mwexec("/sbin/sysctl net.link.ether.ipfw=1");
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chdir($g['captiveportal_path']);
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cc76d459
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Scott Ullrich
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$memory = get_memory();
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$avail = $memory[0];
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if($avail > 0 and $avail < 60) {
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$procs = 16;
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} else if($avail > 60 and $avail < 120) {
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$procs = 24;
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} else if($avail > 120 and $avail < 160) {
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$procs = 32;
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} else if($avail > 160 and $avail < 250) {
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$procs = 48;
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} else if($avail > 250 and $avail < 380) {
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$procs = 56;
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} else if($avail > 380 and $avail < 500) {
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$procs = 72;
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} else if($avail > 500 and $avail < 680) {
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$procs = 80;
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} else {
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$procs = 16;
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}
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/* start web server */
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mwexec("/usr/local/sbin/mini_httpd -a -M 0 -u root -maxproc {$procs}" .
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" -p 8000 -i {$g['varrun_path']}/mini_httpd.cp.pid");
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/* fire up another one for HTTPS if requested */
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5b237745
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Scott Ullrich
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if (isset($config['captiveportal']['httpslogin']) &&
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$config['captiveportal']['certificate'] && $config['captiveportal']['private-key']) {
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| 195 |
c6c92abf
|
Scott Ullrich
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| 196 |
5b237745
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Scott Ullrich
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$cert = base64_decode($config['captiveportal']['certificate']);
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$key = base64_decode($config['captiveportal']['private-key']);
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| 198 |
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| 199 |
5b237745
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$fd = fopen("{$g['varetc_path']}/cert-portal.pem", "w");
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if (!$fd) {
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printf("Error: cannot open cert-portal.pem in system_webgui_start().\n");
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return 1;
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}
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chmod("{$g['varetc_path']}/cert-portal.pem", 0600);
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fwrite($fd, $cert);
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fwrite($fd, "\n");
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fwrite($fd, $key);
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fclose($fd);
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| 209 |
c6c92abf
|
Scott Ullrich
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| 210 |
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mwexec("/usr/local/sbin/mini_httpd -S -a -M 0 -E {$g['varetc_path']}/cert-portal.pem" .
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" -u root -maxproc 16 -p 8001" .
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" -i {$g['varrun_path']}/mini_httpd.cps.pid");
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5b237745
|
Scott Ullrich
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}
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| 214 |
c6c92abf
|
Scott Ullrich
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| 215 |
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/* start pruning process (interval = 60 seconds) */
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| 216 |
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mwexec("/usr/local/bin/minicron 60 {$g['varrun_path']}/minicron.pid " .
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| 217 |
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"/etc/rc.prunecaptiveportal");
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| 218 |
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| 219 |
5b237745
|
Scott Ullrich
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/* generate passthru mac database */
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| 220 |
3db19cf1
|
Scott Ullrich
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captiveportal_passthrumac_configure();
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| 221 |
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/* create allowed ip database and insert ipfw rules to make it so */
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| 222 |
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captiveportal_allowedip_configure();
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| 223 |
5b237745
|
Scott Ullrich
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|
| 224 |
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/* generate radius server database */
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| 225 |
3db19cf1
|
Scott Ullrich
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if ($config['captiveportal']['radiusip'] && (!isset($config['captiveportal']['auth_method']) ||
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| 226 |
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($config['captiveportal']['auth_method'] == "radius"))) {
|
| 227 |
|
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$radiusip = $config['captiveportal']['radiusip'];
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| 228 |
5b237745
|
Scott Ullrich
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| 229 |
3db19cf1
|
Scott Ullrich
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if ($config['captiveportal']['radiusport'])
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| 230 |
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$radiusport = $config['captiveportal']['radiusport'];
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| 231 |
5b237745
|
Scott Ullrich
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else
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| 232 |
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$radiusport = 1812;
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| 233 |
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| 234 |
3db19cf1
|
Scott Ullrich
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if ($config['captiveportal']['radiusacctport'])
|
| 235 |
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$radiusacctport = $config['captiveportal']['radiusacctport'];
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| 236 |
5b237745
|
Scott Ullrich
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else
|
| 237 |
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$radiusacctport = 1813;
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| 238 |
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| 239 |
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$radiuskey = $config['captiveportal']['radiuskey'];
|
| 240 |
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| 241 |
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$fd = @fopen("{$g['vardb_path']}/captiveportal_radius.db", "w");
|
| 242 |
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if (!$fd) {
|
| 243 |
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printf("Error: cannot open radius DB file in captiveportal_configure().\n");
|
| 244 |
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return 1;
|
| 245 |
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} else {
|
| 246 |
3db19cf1
|
Scott Ullrich
|
fwrite($fd,$radiusip . "," . $radiusport . "," . $radiusacctport . "," . $radiuskey);
|
| 247 |
5b237745
|
Scott Ullrich
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}
|
| 248 |
3db19cf1
|
Scott Ullrich
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fclose($fd);
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| 249 |
5b237745
|
Scott Ullrich
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}
|
| 250 |
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| 251 |
3db19cf1
|
Scott Ullrich
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if ($g['booting'])
|
| 252 |
|
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echo "done\n";
|
| 253 |
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| 254 |
5b237745
|
Scott Ullrich
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} else {
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| 255 |
c6c92abf
|
Scott Ullrich
|
killbypid("{$g['varrun_path']}/mini_httpd.cp.pid");
|
| 256 |
|
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killbypid("{$g['varrun_path']}/mini_httpd.cps.pid");
|
| 257 |
|
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killbypid("{$g['varrun_path']}/minicron.pid");
|
| 258 |
12ee8fe4
|
Scott Ullrich
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|
| 259 |
3db19cf1
|
Scott Ullrich
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captiveportal_radius_stop_all();
|
| 260 |
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|
| 261 |
|
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mwexec("/sbin/sysctl net.link.ether.ipfw=0");
|
| 262 |
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|
| 263 |
|
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if (!isset($config['shaper']['enable'])) {
|
| 264 |
|
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/* unload ipfw */
|
| 265 |
|
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mwexec("/sbin/kldunload ipfw");
|
| 266 |
|
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} else {
|
| 267 |
|
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/* shaper is on - just remove our rules */
|
| 268 |
|
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mwexec("/sbin/ipfw -f delete set 1");
|
| 269 |
|
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mwexec("/sbin/ipfw -f delete set 2");
|
| 270 |
|
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mwexec("/sbin/ipfw -f delete set 3");
|
| 271 |
|
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}
|
| 272 |
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}
|
| 273 |
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| 274 |
5b237745
|
Scott Ullrich
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return 0;
|
| 275 |
|
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}
|
| 276 |
|
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| 277 |
3db19cf1
|
Scott Ullrich
|
function captiveportal_rules_generate() {
|
| 278 |
|
|
global $config, $g;
|
| 279 |
|
|
|
| 280 |
|
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$cpifn = $config['captiveportal']['interface'];
|
| 281 |
|
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$cpif = $config['interfaces'][$cpifn]['if'];
|
| 282 |
|
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$cpip = $config['interfaces'][$cpifn]['ipaddr'];
|
| 283 |
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|
| 284 |
|
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/* note: the captive portal daemon inserts all pass rules for authenticated
|
| 285 |
|
|
clients as skipto 50000 rules to make traffic shaping work */
|
| 286 |
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|
| 287 |
|
|
$cprules = "";
|
| 288 |
|
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|
| 289 |
|
|
/* captive portal on LAN interface? */
|
| 290 |
|
|
if ($cpifn == "lan") {
|
| 291 |
|
|
/* add anti-lockout rules */
|
| 292 |
|
|
$cprules .= <<<EOD
|
| 293 |
|
|
add 500 set 1 pass all from $cpip to any out via $cpif
|
| 294 |
|
|
add 501 set 1 pass all from any to $cpip in via $cpif
|
| 295 |
|
|
|
| 296 |
|
|
EOD;
|
| 297 |
|
|
}
|
| 298 |
|
|
|
| 299 |
|
|
$cprules .= <<<EOD
|
| 300 |
|
|
# skip to traffic shaper if not on captive portal interface
|
| 301 |
|
|
add 1000 set 1 skipto 50000 all from any to any not layer2 not via $cpif
|
| 302 |
|
|
# pass all layer2 traffic on other interfaces
|
| 303 |
|
|
add 1001 set 1 pass layer2 not via $cpif
|
| 304 |
|
|
|
| 305 |
|
|
# layer 2: pass ARP
|
| 306 |
|
|
add 1100 set 1 pass layer2 mac-type arp
|
| 307 |
|
|
# layer 2: block anything else non-IP
|
| 308 |
|
|
add 1101 set 1 deny layer2 not mac-type ip
|
| 309 |
|
|
# layer 2: check if MAC addresses of authenticated clients are correct
|
| 310 |
|
|
add 1102 set 1 skipto 20000 layer2
|
| 311 |
|
|
|
| 312 |
|
|
# allow access to our DHCP server (which needs to be able to ping clients as well)
|
| 313 |
|
|
add 1200 set 1 pass udp from any 68 to 255.255.255.255 67 in
|
| 314 |
|
|
add 1201 set 1 pass udp from any 68 to $cpip 67 in
|
| 315 |
|
|
add 1202 set 1 pass udp from $cpip 67 to any 68 out
|
| 316 |
|
|
add 1203 set 1 pass icmp from $cpip to any out icmptype 8
|
| 317 |
|
|
add 1204 set 1 pass icmp from any to $cpip in icmptype 0
|
| 318 |
|
|
|
| 319 |
|
|
# allow access to our DNS forwarder
|
| 320 |
|
|
add 1300 set 1 pass udp from any to $cpip 53 in
|
| 321 |
|
|
add 1301 set 1 pass udp from $cpip 53 to any out
|
| 322 |
|
|
|
| 323 |
|
|
# allow access to our web server
|
| 324 |
|
|
add 1302 set 1 pass tcp from any to $cpip 8000 in
|
| 325 |
|
|
add 1303 set 1 pass tcp from $cpip 8000 to any out
|
| 326 |
|
|
|
| 327 |
|
|
EOD;
|
| 328 |
|
|
|
| 329 |
|
|
if (isset($config['captiveportal']['httpslogin'])) {
|
| 330 |
|
|
$cprules .= <<<EOD
|
| 331 |
|
|
add 1304 set 1 pass tcp from any to $cpip 8001 in
|
| 332 |
|
|
add 1305 set 1 pass tcp from $cpip 8001 to any out
|
| 333 |
|
|
|
| 334 |
|
|
EOD;
|
| 335 |
|
|
}
|
| 336 |
|
|
|
| 337 |
|
|
$cprules .= <<<EOD
|
| 338 |
|
|
|
| 339 |
|
|
# ... 10000-19899: rules per authenticated client go here...
|
| 340 |
|
|
|
| 341 |
|
|
# redirect non-authenticated clients to captive portal
|
| 342 |
|
|
add 19900 set 1 fwd 127.0.0.1,8000 tcp from any to any 80 in
|
| 343 |
|
|
# let the responses from the captive portal web server back out
|
| 344 |
|
|
add 19901 set 1 pass tcp from any 80 to any out
|
| 345 |
|
|
# block everything else
|
| 346 |
|
|
add 19902 set 1 deny all from any to any
|
| 347 |
|
|
|
| 348 |
|
|
# ... 20000-29899: layer2 block rules per authenticated client go here...
|
| 349 |
|
|
|
| 350 |
|
|
# pass everything else on layer2
|
| 351 |
|
|
add 29900 set 1 pass all from any to any layer2
|
| 352 |
|
|
|
| 353 |
|
|
EOD;
|
| 354 |
|
|
|
| 355 |
|
|
return $cprules;
|
| 356 |
|
|
}
|
| 357 |
|
|
|
| 358 |
5b237745
|
Scott Ullrich
|
/* remove clients that have been around for longer than the specified amount of time */
|
| 359 |
3db19cf1
|
Scott Ullrich
|
/* db file structure: timestamp,ipfw_rule_no,clientip,clientmac,username,sessionid,password */
|
| 360 |
|
|
/* (password is in Base64 and only saved when reauthentication is enabled) */
|
| 361 |
5b237745
|
Scott Ullrich
|
function captiveportal_prune_old() {
|
| 362 |
3db19cf1
|
Scott Ullrich
|
|
| 363 |
5b237745
|
Scott Ullrich
|
global $g, $config;
|
| 364 |
3db19cf1
|
Scott Ullrich
|
|
| 365 |
5b237745
|
Scott Ullrich
|
/* check for expired entries */
|
| 366 |
|
|
if ($config['captiveportal']['timeout'])
|
| 367 |
|
|
$timeout = $config['captiveportal']['timeout'] * 60;
|
| 368 |
|
|
else
|
| 369 |
|
|
$timeout = 0;
|
| 370 |
3db19cf1
|
Scott Ullrich
|
|
| 371 |
5b237745
|
Scott Ullrich
|
if ($config['captiveportal']['idletimeout'])
|
| 372 |
|
|
$idletimeout = $config['captiveportal']['idletimeout'] * 60;
|
| 373 |
|
|
else
|
| 374 |
|
|
$idletimeout = 0;
|
| 375 |
3db19cf1
|
Scott Ullrich
|
|
| 376 |
|
|
if (!$timeout && !$idletimeout && !isset($config['captiveportal']['reauthenticate']))
|
| 377 |
5b237745
|
Scott Ullrich
|
return;
|
| 378 |
3db19cf1
|
Scott Ullrich
|
|
| 379 |
5b237745
|
Scott Ullrich
|
captiveportal_lock();
|
| 380 |
3db19cf1
|
Scott Ullrich
|
|
| 381 |
5b237745
|
Scott Ullrich
|
/* read database */
|
| 382 |
|
|
$cpdb = captiveportal_read_db();
|
| 383 |
3db19cf1
|
Scott Ullrich
|
|
| 384 |
5b237745
|
Scott Ullrich
|
$radiusservers = captiveportal_get_radius_servers();
|
| 385 |
3db19cf1
|
Scott Ullrich
|
|
| 386 |
5b237745
|
Scott Ullrich
|
for ($i = 0; $i < count($cpdb); $i++) {
|
| 387 |
3db19cf1
|
Scott Ullrich
|
|
| 388 |
5b237745
|
Scott Ullrich
|
$timedout = false;
|
| 389 |
a4004399
|
Scott Ullrich
|
|
| 390 |
3db19cf1
|
Scott Ullrich
|
/* hard timeout? */
|
| 391 |
|
|
if ($timeout) {
|
| 392 |
|
|
if ((time() - $cpdb[$i][0]) >= $timeout)
|
| 393 |
|
|
$timedout = true;
|
| 394 |
|
|
}
|
| 395 |
|
|
|
| 396 |
|
|
/* if an idle timeout is specified, get last activity timestamp from ipfw */
|
| 397 |
|
|
if (!$timedout && $idletimeout) {
|
| 398 |
|
|
$lastact = captiveportal_get_last_activity($cpdb[$i][1]);
|
| 399 |
|
|
if ($lastact && ((time() - $lastact) >= $idletimeout))
|
| 400 |
|
|
$timedout = true;
|
| 401 |
|
|
}
|
| 402 |
|
|
|
| 403 |
5b237745
|
Scott Ullrich
|
if ($timedout) {
|
| 404 |
3db19cf1
|
Scott Ullrich
|
captiveportal_disconnect($cpdb[$i], $radiusservers);
|
| 405 |
|
|
captiveportal_logportalauth($cpdb[$i][4], $cpdb[$i][3], $cpdb[$i][2], "TIMEOUT");
|
| 406 |
5b237745
|
Scott Ullrich
|
unset($cpdb[$i]);
|
| 407 |
|
|
}
|
| 408 |
3db19cf1
|
Scott Ullrich
|
|
| 409 |
|
|
/* do periodic RADIUS reauthentication? */
|
| 410 |
|
|
if (!$timedout && isset($config['captiveportal']['reauthenticate']) &&
|
| 411 |
|
|
($radiusservers !== false)) {
|
| 412 |
|
|
|
| 413 |
|
|
if (isset($config['captiveportal']['radacct_enable'])) {
|
| 414 |
|
|
if ($config['captiveportal']['reauthenticateacct'] == "stopstart") {
|
| 415 |
|
|
/* stop and restart accounting */
|
| 416 |
|
|
RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
|
| 417 |
|
|
$cpdb[$i][4], // username
|
| 418 |
|
|
$cpdb[$i][5], // sessionid
|
| 419 |
|
|
$cpdb[$i][0], // start time
|
| 420 |
|
|
$radiusservers[0]['ipaddr'],
|
| 421 |
|
|
$radiusservers[0]['acctport'],
|
| 422 |
|
|
$radiusservers[0]['key'],
|
| 423 |
|
|
$cpdb[$i][2]); //clientip
|
| 424 |
|
|
exec("/sbin/ipfw zero {$cpdb[$i][1]}");
|
| 425 |
|
|
RADIUS_ACCOUNTING_START($cpdb[$i][4],
|
| 426 |
|
|
$cpdb[$i][5],
|
| 427 |
|
|
$radiusservers[0]['ipaddr'],
|
| 428 |
|
|
$radiusservers[0]['acctport'],
|
| 429 |
|
|
$radiusservers[0]['key'],
|
| 430 |
|
|
$cpdb[$i][2]);
|
| 431 |
|
|
} else if ($config['captiveportal']['reauthenticateacct'] == "interimupdate") {
|
| 432 |
|
|
RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
|
| 433 |
|
|
$cpdb[$i][4], // username
|
| 434 |
|
|
$cpdb[$i][5], // sessionid
|
| 435 |
|
|
$cpdb[$i][0], // start time
|
| 436 |
|
|
$radiusservers[0]['ipaddr'],
|
| 437 |
|
|
$radiusservers[0]['acctport'],
|
| 438 |
|
|
$radiusservers[0]['key'],
|
| 439 |
|
|
$cpdb[$i][2], //clientip
|
| 440 |
|
|
true);
|
| 441 |
|
|
}
|
| 442 |
|
|
}
|
| 443 |
|
|
|
| 444 |
|
|
/* check this user against RADIUS again */
|
| 445 |
|
|
$auth_val = RADIUS_AUTHENTICATION($cpdb[$i][4],
|
| 446 |
|
|
base64_decode($cpdb[$i][6]),
|
| 447 |
|
|
$radiusservers[0]['ipaddr'],
|
| 448 |
|
|
$radiusservers[0]['port'],
|
| 449 |
|
|
$radiusservers[0]['key']);
|
| 450 |
|
|
|
| 451 |
|
|
if ($auth_val == 3) {
|
| 452 |
|
|
captiveportal_disconnect($cpdb[$i], $radiusservers);
|
| 453 |
|
|
captiveportal_logportalauth($cpdb[$i][4], $cpdb[$i][3], $cpdb[$i][2], "RADIUS_DISCONNECT");
|
| 454 |
|
|
unset($cpdb[$i]);
|
| 455 |
|
|
}
|
| 456 |
|
|
}
|
| 457 |
5b237745
|
Scott Ullrich
|
}
|
| 458 |
3db19cf1
|
Scott Ullrich
|
|
| 459 |
5b237745
|
Scott Ullrich
|
/* write database */
|
| 460 |
|
|
captiveportal_write_db($cpdb);
|
| 461 |
3db19cf1
|
Scott Ullrich
|
|
| 462 |
5b237745
|
Scott Ullrich
|
captiveportal_unlock();
|
| 463 |
|
|
}
|
| 464 |
|
|
|
| 465 |
3db19cf1
|
Scott Ullrich
|
/* remove a single client according to the DB entry */
|
| 466 |
|
|
function captiveportal_disconnect($dbent, $radiusservers) {
|
| 467 |
|
|
|
| 468 |
5b237745
|
Scott Ullrich
|
global $g, $config;
|
| 469 |
3db19cf1
|
Scott Ullrich
|
|
| 470 |
|
|
/* this client needs to be deleted - remove ipfw rules */
|
| 471 |
|
|
if (isset($config['captiveportal']['radacct_enable']) && isset($radiusservers[0])) {
|
| 472 |
|
|
RADIUS_ACCOUNTING_STOP($dbent[1], // ruleno
|
| 473 |
|
|
$dbent[4], // username
|
| 474 |
|
|
$dbent[5], // sessionid
|
| 475 |
|
|
$dbent[0], // start time
|
| 476 |
|
|
$radiusservers[0]['ipaddr'],
|
| 477 |
|
|
$radiusservers[0]['acctport'],
|
| 478 |
|
|
$radiusservers[0]['key'],
|
| 479 |
|
|
$dbent[2]); //clientip
|
| 480 |
|
|
}
|
| 481 |
|
|
|
| 482 |
|
|
mwexec("/sbin/ipfw delete " . $dbent[1] . " " . ($dbent[1]+10000));
|
| 483 |
|
|
|
| 484 |
|
|
//KEYCOM: we need to delete +40500 and +45500 as well...
|
| 485 |
|
|
//these are the rule numbers we use to control traffic shaping for each logged in user via captive portal
|
| 486 |
|
|
//we only need to remove our rules if peruserbw is turned on.
|
| 487 |
|
|
if (isset($config['captiveportal']['peruserbw'])) {
|
| 488 |
|
|
mwexec("/sbin/ipfw delete " . ($dbent[1]+40500));
|
| 489 |
|
|
mwexec("/sbin/ipfw delete " . ($dbent[1]+45500));
|
| 490 |
|
|
}
|
| 491 |
|
|
}
|
| 492 |
12ee8fe4
|
Scott Ullrich
|
|
| 493 |
3db19cf1
|
Scott Ullrich
|
/* remove a single client by ipfw rule number */
|
| 494 |
|
|
function captiveportal_disconnect_client($id) {
|
| 495 |
|
|
|
| 496 |
|
|
global $g, $config;
|
| 497 |
|
|
|
| 498 |
5b237745
|
Scott Ullrich
|
captiveportal_lock();
|
| 499 |
3db19cf1
|
Scott Ullrich
|
|
| 500 |
5b237745
|
Scott Ullrich
|
/* read database */
|
| 501 |
|
|
$cpdb = captiveportal_read_db();
|
| 502 |
|
|
$radiusservers = captiveportal_get_radius_servers();
|
| 503 |
3db19cf1
|
Scott Ullrich
|
|
| 504 |
|
|
/* find entry */
|
| 505 |
5b237745
|
Scott Ullrich
|
for ($i = 0; $i < count($cpdb); $i++) {
|
| 506 |
|
|
if ($cpdb[$i][1] == $id) {
|
| 507 |
3db19cf1
|
Scott Ullrich
|
captiveportal_disconnect($cpdb[$i], $radiusservers);
|
| 508 |
|
|
captiveportal_logportalauth($cpdb[$i][4], $cpdb[$i][3], $cpdb[$i][2], "DISCONNECT");
|
| 509 |
5b237745
|
Scott Ullrich
|
unset($cpdb[$i]);
|
| 510 |
|
|
break;
|
| 511 |
|
|
}
|
| 512 |
|
|
}
|
| 513 |
3db19cf1
|
Scott Ullrich
|
|
| 514 |
5b237745
|
Scott Ullrich
|
/* write database */
|
| 515 |
|
|
captiveportal_write_db($cpdb);
|
| 516 |
3db19cf1
|
Scott Ullrich
|
|
| 517 |
5b237745
|
Scott Ullrich
|
captiveportal_unlock();
|
| 518 |
|
|
}
|
| 519 |
|
|
|
| 520 |
|
|
/* send RADIUS acct stop for all current clients */
|
| 521 |
|
|
function captiveportal_radius_stop_all() {
|
| 522 |
|
|
global $g, $config;
|
| 523 |
|
|
|
| 524 |
3db19cf1
|
Scott Ullrich
|
captiveportal_lock();
|
| 525 |
|
|
$cpdb = captiveportal_read_db();
|
| 526 |
|
|
|
| 527 |
5b237745
|
Scott Ullrich
|
$radiusservers = captiveportal_get_radius_servers();
|
| 528 |
3db19cf1
|
Scott Ullrich
|
|
| 529 |
5b237745
|
Scott Ullrich
|
if (isset($radiusservers[0])) {
|
| 530 |
|
|
for ($i = 0; $i < count($cpdb); $i++) {
|
| 531 |
|
|
RADIUS_ACCOUNTING_STOP($cpdb[$i][1], // ruleno
|
| 532 |
|
|
$cpdb[$i][4], // username
|
| 533 |
|
|
$cpdb[$i][5], // sessionid
|
| 534 |
|
|
$cpdb[$i][0], // start time
|
| 535 |
|
|
$radiusservers[0]['ipaddr'],
|
| 536 |
|
|
$radiusservers[0]['acctport'],
|
| 537 |
9699028a
|
Scott Ullrich
|
$radiusservers[0]['key'],
|
| 538 |
|
|
$cpdb[$i][2]); //clientip
|
| 539 |
5b237745
|
Scott Ullrich
|
}
|
| 540 |
|
|
}
|
| 541 |
3db19cf1
|
Scott Ullrich
|
captiveportal_unlock();
|
| 542 |
5b237745
|
Scott Ullrich
|
}
|
| 543 |
|
|
|
| 544 |
|
|
function captiveportal_passthrumac_configure() {
|
| 545 |
|
|
global $config, $g;
|
| 546 |
3db19cf1
|
Scott Ullrich
|
|
| 547 |
|
|
captiveportal_lock();
|
| 548 |
|
|
|
| 549 |
5b237745
|
Scott Ullrich
|
/* clear out passthru macs, if necessary */
|
| 550 |
3db19cf1
|
Scott Ullrich
|
unlink_if_exists("{$g['vardb_path']}/captiveportal_mac.db");
|
| 551 |
|
|
|
| 552 |
5b237745
|
Scott Ullrich
|
if (is_array($config['captiveportal']['passthrumac'])) {
|
| 553 |
3db19cf1
|
Scott Ullrich
|
|
| 554 |
5b237745
|
Scott Ullrich
|
$fd = @fopen("{$g['vardb_path']}/captiveportal_mac.db", "w");
|
| 555 |
|
|
if (!$fd) {
|
| 556 |
|
|
printf("Error: cannot open passthru mac DB file in captiveportal_passthrumac_configure().\n");
|
| 557 |
3db19cf1
|
Scott Ullrich
|
captiveportal_unlock();
|
| 558 |
|
|
return 1;
|
| 559 |
5b237745
|
Scott Ullrich
|
}
|
| 560 |
3db19cf1
|
Scott Ullrich
|
|
| 561 |
5b237745
|
Scott Ullrich
|
foreach ($config['captiveportal']['passthrumac'] as $macent) {
|
| 562 |
|
|
/* record passthru mac so it can be recognized and let thru */
|
| 563 |
|
|
fwrite($fd, $macent['mac'] . "\n");
|
| 564 |
|
|
}
|
| 565 |
3db19cf1
|
Scott Ullrich
|
|
| 566 |
|
|
fclose($fd);
|
| 567 |
5b237745
|
Scott Ullrich
|
}
|
| 568 |
3db19cf1
|
Scott Ullrich
|
|
| 569 |
1de584c9
|
Scott Ullrich
|
/* pass through mac entries should always exist. the reason
|
| 570 |
|
|
* for this is because we do not have native mac address filtering
|
| 571 |
|
|
* mechanisms. this allows us to filter by mac address easily
|
| 572 |
|
|
* and get around this limitation. I consider this a bug in
|
| 573 |
|
|
* m0n0wall and pfSense as m0n0wall does not have native mac
|
| 574 |
|
|
* filtering mechanisms as well. -Scott Ullrich
|
| 575 |
|
|
*/
|
| 576 |
|
|
if (is_array($config['captiveportal']['passthrumac'])) {
|
| 577 |
|
|
mwexec("/sbin/ipfw delete 50");
|
| 578 |
|
|
foreach($config['captiveportal']['passthrumac'] as $ptm) {
|
| 579 |
|
|
/* create the pass through mac entry */
|
| 580 |
12249cad
|
Scott Ullrich
|
//system("echo /sbin/ipfw add 50 skipto 65535 ip from any to any MAC {$ptm['mac']} any > /tmp/cp");
|
| 581 |
5d61b44e
|
Scott Ullrich
|
mwexec("/sbin/ipfw add 50 skipto 29900 ip from any to any MAC {$ptm['mac']} any keep-state");
|
| 582 |
|
|
mwexec("/sbin/ipfw add 50 skipto 29900 ip from any to any MAC any {$ptm['mac']} keep-state");
|
| 583 |
1de584c9
|
Scott Ullrich
|
}
|
| 584 |
|
|
}
|
| 585 |
|
|
|
| 586 |
3db19cf1
|
Scott Ullrich
|
captiveportal_unlock();
|
| 587 |
|
|
|
| 588 |
5b237745
|
Scott Ullrich
|
return 0;
|
| 589 |
|
|
}
|
| 590 |
|
|
|
| 591 |
|
|
function captiveportal_allowedip_configure() {
|
| 592 |
|
|
global $config, $g;
|
| 593 |
3db19cf1
|
Scott Ullrich
|
|
| 594 |
|
|
captiveportal_lock();
|
| 595 |
5b237745
|
Scott Ullrich
|
|
| 596 |
|
|
/* clear out existing allowed ips, if necessary */
|
| 597 |
|
|
if (file_exists("{$g['vardb_path']}/captiveportal_ip.db")) {
|
| 598 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal_ip.db", "r");
|
| 599 |
|
|
if ($fd) {
|
| 600 |
|
|
while (!feof($fd)) {
|
| 601 |
|
|
$line = trim(fgets($fd));
|
| 602 |
3db19cf1
|
Scott Ullrich
|
if ($line) {
|
| 603 |
5b237745
|
Scott Ullrich
|
list($ip,$rule) = explode(",",$line);
|
| 604 |
3db19cf1
|
Scott Ullrich
|
mwexec("/sbin/ipfw delete $rule");
|
| 605 |
|
|
}
|
| 606 |
5b237745
|
Scott Ullrich
|
}
|
| 607 |
|
|
}
|
| 608 |
3db19cf1
|
Scott Ullrich
|
fclose($fd);
|
| 609 |
5b237745
|
Scott Ullrich
|
unlink("{$g['vardb_path']}/captiveportal_ip.db");
|
| 610 |
|
|
}
|
| 611 |
|
|
|
| 612 |
3db19cf1
|
Scott Ullrich
|
/* get next ipfw rule number */
|
| 613 |
|
|
if (file_exists("{$g['vardb_path']}/captiveportal.nextrule"))
|
| 614 |
|
|
$ruleno = trim(file_get_contents("{$g['vardb_path']}/captiveportal.nextrule"));
|
| 615 |
|
|
if (!$ruleno)
|
| 616 |
|
|
$ruleno = 10000; /* first rule number */
|
| 617 |
|
|
|
| 618 |
5b237745
|
Scott Ullrich
|
if (is_array($config['captiveportal']['allowedip'])) {
|
| 619 |
3db19cf1
|
Scott Ullrich
|
|
| 620 |
5b237745
|
Scott Ullrich
|
$fd = @fopen("{$g['vardb_path']}/captiveportal_ip.db", "w");
|
| 621 |
|
|
if (!$fd) {
|
| 622 |
|
|
printf("Error: cannot open allowed ip DB file in captiveportal_allowedip_configure().\n");
|
| 623 |
3db19cf1
|
Scott Ullrich
|
captiveportal_unlock();
|
| 624 |
|
|
return 1;
|
| 625 |
5b237745
|
Scott Ullrich
|
}
|
| 626 |
3db19cf1
|
Scott Ullrich
|
|
| 627 |
5b237745
|
Scott Ullrich
|
foreach ($config['captiveportal']['allowedip'] as $ipent) {
|
| 628 |
3db19cf1
|
Scott Ullrich
|
|
| 629 |
5b237745
|
Scott Ullrich
|
/* record allowed ip so it can be recognized and removed later */
|
| 630 |
3db19cf1
|
Scott Ullrich
|
fwrite($fd, $ipent['ip'] . "," . $ruleno ."\n");
|
| 631 |
|
|
|
| 632 |
|
|
/* insert ipfw rule to allow ip thru */
|
| 633 |
|
|
if ($ipent['dir'] == "from") {
|
| 634 |
|
|
mwexec("/sbin/ipfw add $ruleno set 2 skipto 50000 ip from " . $ipent['ip'] . " to any in");
|
| 635 |
|
|
mwexec("/sbin/ipfw add $ruleno set 2 skipto 50000 ip from any to " . $ipent['ip'] . " out");
|
| 636 |
|
|
} else {
|
| 637 |
|
|
mwexec("/sbin/ipfw add $ruleno set 2 skipto 50000 ip from any to " . $ipent['ip'] . " in");
|
| 638 |
|
|
mwexec("/sbin/ipfw add $ruleno set 2 skipto 50000 ip from " . $ipent['ip'] . " to any out");
|
| 639 |
|
|
}
|
| 640 |
|
|
|
| 641 |
|
|
$ruleno++;
|
| 642 |
|
|
if ($ruleno > 19899)
|
| 643 |
|
|
$ruleno = 10000;
|
| 644 |
5b237745
|
Scott Ullrich
|
}
|
| 645 |
3db19cf1
|
Scott Ullrich
|
|
| 646 |
|
|
fclose($fd);
|
| 647 |
5b237745
|
Scott Ullrich
|
|
| 648 |
|
|
/* write next rule number */
|
| 649 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.nextrule", "w");
|
| 650 |
|
|
if ($fd) {
|
| 651 |
|
|
fwrite($fd, $ruleno);
|
| 652 |
|
|
fclose($fd);
|
| 653 |
|
|
}
|
| 654 |
|
|
}
|
| 655 |
3db19cf1
|
Scott Ullrich
|
|
| 656 |
|
|
captiveportal_unlock();
|
| 657 |
5b237745
|
Scott Ullrich
|
return 0;
|
| 658 |
|
|
}
|
| 659 |
|
|
|
| 660 |
3db19cf1
|
Scott Ullrich
|
/* get last activity timestamp given ipfw rule number */
|
| 661 |
|
|
function captiveportal_get_last_activity($ruleno) {
|
| 662 |
|
|
|
| 663 |
|
|
exec("/sbin/ipfw -T list {$ruleno} 2>/dev/null", $ipfwoutput);
|
| 664 |
|
|
|
| 665 |
|
|
/* in */
|
| 666 |
|
|
if ($ipfwoutput[0]) {
|
| 667 |
|
|
$ri = explode(" ", $ipfwoutput[0]);
|
| 668 |
|
|
if ($ri[1])
|
| 669 |
|
|
return $ri[1];
|
| 670 |
|
|
}
|
| 671 |
|
|
|
| 672 |
5b237745
|
Scott Ullrich
|
return 0;
|
| 673 |
|
|
}
|
| 674 |
|
|
|
| 675 |
|
|
/* read captive portal DB into array */
|
| 676 |
|
|
function captiveportal_read_db() {
|
| 677 |
3db19cf1
|
Scott Ullrich
|
|
| 678 |
5b237745
|
Scott Ullrich
|
global $g;
|
| 679 |
3db19cf1
|
Scott Ullrich
|
|
| 680 |
5b237745
|
Scott Ullrich
|
$cpdb = array();
|
| 681 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "r");
|
| 682 |
|
|
if ($fd) {
|
| 683 |
|
|
while (!feof($fd)) {
|
| 684 |
|
|
$line = trim(fgets($fd));
|
| 685 |
|
|
if ($line) {
|
| 686 |
|
|
$cpdb[] = explode(",", $line);
|
| 687 |
3db19cf1
|
Scott Ullrich
|
}
|
| 688 |
5b237745
|
Scott Ullrich
|
}
|
| 689 |
|
|
fclose($fd);
|
| 690 |
|
|
}
|
| 691 |
|
|
return $cpdb;
|
| 692 |
|
|
}
|
| 693 |
|
|
|
| 694 |
|
|
/* write captive portal DB */
|
| 695 |
|
|
function captiveportal_write_db($cpdb) {
|
| 696 |
3db19cf1
|
Scott Ullrich
|
|
| 697 |
5b237745
|
Scott Ullrich
|
global $g;
|
| 698 |
3db19cf1
|
Scott Ullrich
|
|
| 699 |
5b237745
|
Scott Ullrich
|
$fd = @fopen("{$g['vardb_path']}/captiveportal.db", "w");
|
| 700 |
|
|
if ($fd) {
|
| 701 |
|
|
foreach ($cpdb as $cpent) {
|
| 702 |
|
|
fwrite($fd, join(",", $cpent) . "\n");
|
| 703 |
|
|
}
|
| 704 |
|
|
fclose($fd);
|
| 705 |
|
|
}
|
| 706 |
|
|
}
|
| 707 |
|
|
|
| 708 |
|
|
/* read RADIUS servers into array */
|
| 709 |
|
|
function captiveportal_get_radius_servers() {
|
| 710 |
3db19cf1
|
Scott Ullrich
|
|
| 711 |
5b237745
|
Scott Ullrich
|
global $g;
|
| 712 |
3db19cf1
|
Scott Ullrich
|
|
| 713 |
5b237745
|
Scott Ullrich
|
if (file_exists("{$g['vardb_path']}/captiveportal_radius.db")) {
|
| 714 |
|
|
$fd = @fopen("{$g['vardb_path']}/captiveportal_radius.db","r");
|
| 715 |
|
|
if ($fd) {
|
| 716 |
|
|
$radiusservers = array();
|
| 717 |
|
|
while (!feof($fd)) {
|
| 718 |
|
|
$line = trim(fgets($fd));
|
| 719 |
|
|
if ($line) {
|
| 720 |
|
|
$radsrv = array();
|
| 721 |
|
|
list($radsrv['ipaddr'],$radsrv['port'],$radsrv['acctport'],$radsrv['key']) = explode(",",$line);
|
| 722 |
|
|
$radiusservers[] = $radsrv;
|
| 723 |
|
|
}
|
| 724 |
|
|
}
|
| 725 |
|
|
fclose($fd);
|
| 726 |
3db19cf1
|
Scott Ullrich
|
|
| 727 |
5b237745
|
Scott Ullrich
|
return $radiusservers;
|
| 728 |
|
|
}
|
| 729 |
|
|
}
|
| 730 |
3db19cf1
|
Scott Ullrich
|
|
| 731 |
5b237745
|
Scott Ullrich
|
return false;
|
| 732 |
|
|
}
|
| 733 |
|
|
|
| 734 |
|
|
/* lock captive portal information, decide that the lock file is stale after
|
| 735 |
|
|
10 seconds */
|
| 736 |
|
|
function captiveportal_lock() {
|
| 737 |
3db19cf1
|
Scott Ullrich
|
|
| 738 |
5b237745
|
Scott Ullrich
|
global $g;
|
| 739 |
3db19cf1
|
Scott Ullrich
|
|
| 740 |
5b237745
|
Scott Ullrich
|
$lockfile = "{$g['varrun_path']}/captiveportal.lock";
|
| 741 |
3db19cf1
|
Scott Ullrich
|
|
| 742 |
5b237745
|
Scott Ullrich
|
$n = 0;
|
| 743 |
|
|
while ($n < 10) {
|
| 744 |
|
|
/* open the lock file in append mode to avoid race condition */
|
| 745 |
|
|
if ($fd = @fopen($lockfile, "x")) {
|
| 746 |
|
|
/* succeeded */
|
| 747 |
|
|
fclose($fd);
|
| 748 |
|
|
return;
|
| 749 |
|
|
} else {
|
| 750 |
|
|
/* file locked, wait and try again */
|
| 751 |
|
|
sleep(1);
|
| 752 |
|
|
$n++;
|
| 753 |
|
|
}
|
| 754 |
|
|
}
|
| 755 |
|
|
}
|
| 756 |
|
|
|
| 757 |
|
|
/* unlock configuration file */
|
| 758 |
|
|
function captiveportal_unlock() {
|
| 759 |
3db19cf1
|
Scott Ullrich
|
|
| 760 |
5b237745
|
Scott Ullrich
|
global $g;
|
| 761 |
3db19cf1
|
Scott Ullrich
|
|
| 762 |
5b237745
|
Scott Ullrich
|
$lockfile = "{$g['varrun_path']}/captiveportal.lock";
|
| 763 |
3db19cf1
|
Scott Ullrich
|
|
| 764 |
5b237745
|
Scott Ullrich
|
if (file_exists($lockfile))
|
| 765 |
|
|
unlink($lockfile);
|
| 766 |
|
|
}
|
| 767 |
|
|
|
| 768 |
3db19cf1
|
Scott Ullrich
|
/* log successful captive portal authentication to syslog */
|
| 769 |
|
|
/* part of this code from php.net */
|
| 770 |
|
|
function captiveportal_logportalauth($user,$mac,$ip,$status) {
|
| 771 |
|
|
define_syslog_variables();
|
| 772 |
|
|
openlog("logportalauth", LOG_PID, LOG_LOCAL4);
|
| 773 |
|
|
// Log it
|
| 774 |
|
|
syslog(LOG_INFO, "$status: $user, $mac, $ip");
|
| 775 |
|
|
closelog();
|
| 776 |
|
|
}
|
| 777 |
|
|
|
| 778 |
c6c92abf
|
Scott Ullrich
|
?>
|