pfSense

<?php

    Copyright (c) 2006, Jonathan De Graeve <jonathan.de.graeve@imelda.be>

    All rights reserved.

    modification, are permitted provided that the following conditions

       notice, this list of conditions and the following disclaimer in the

    ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.

    IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,

    INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,

    BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

    DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING

    NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,

        This code is made possible thx to samples made by Michael Bretterklieber <michael@bretterklieber.com>

        author of the PHP PECL Radius package

	pfSense_MODULE:	captiveportal

*/

RADIUS AUTHENTICATION

---------------------

*/

    $retvalue = array();

    $retvalue['idle_timeout'] = $retvalue['session_terminate_time'] = $retvalue['interim_interval'] = null;

    switch($radiusvendor) {

        case 'cisco':

        	$callingstationid = $clientip;

        	break;

                require_once("captiveportal.inc");

		break;

    // Create our instance

    $rauth = new $classname($username, $password);

    /*

     * At most 10 servers may be specified.

     * When multiple servers are given, they are tried in round-robin fashion until a valid response is received

        // Add a new server to our instance

        $rauth->addServer($radsrv['ipaddr'], $radsrv['port'], $radsrv['key']);

    }

    // Construct data package

    $rauth->username = $username;

        case 'CHAP_MD5':

        case 'MSCHAPv1':

            $classname = $radius_protocol == 'MSCHAPv1' ? 'Crypt_CHAP_MSv1' : 'Crypt_CHAP_MD5';

            $crpt = new $classname;

            $crpt->username = $username;

            $crpt->password = $password;

            $rauth->challenge = $crpt->challenge;

            $rauth->chapid = $crpt->chapid;

            $rauth->response = $crpt->challengeResponse();

            $rauth->flags = 1;

            // If you must use deprecated and weak LAN-Manager-Responses use this:

            //$rauth->lmResponse = $crpt->lmChallengeResponse();

            //$rauth->flags = 0;

            break;

        case 'MSCHAPv2':

            // Construct data package

            $crpt = new Crypt_CHAP_MSv2;

            $crpt->username = $username;

            $crpt->password = $password;

            $rauth->challenge = $crpt->authChallenge;

            $rauth->peerChallenge = $crpt->peerChallenge;

            $rauth->chapid = $crpt->chapid;

            $rauth->response = $crpt->challengeResponse();

            break;

        default:

            $rauth->password = $password;

            break;

    }

    if (PEAR::isError($rauth->start())) {

        $retvalue['auth_val'] = 1;

        $rauth->close();

        return $retvalue;

    }

    // Default attributes

    $rauth->putAttribute(RADIUS_SERVICE_TYPE, RADIUS_LOGIN);

    $rauth->putAttribute(RADIUS_NAS_PORT_TYPE, RADIUS_ETHERNET);

    // Extra data to identify the client and nas

    $rauth->putAttribute(RADIUS_FRAMED_IP_ADDRESS, $clientip, addr);

    $rauth->putAttribute(RADIUS_CALLED_STATION_ID, $calledstationid);

    $rauth->putAttribute(RADIUS_CALLING_STATION_ID, $callingstationid);

    // Send request

    $result = $rauth->send();

    // Evaluation of the response

    // 1 -> Access-Request => We will use this value as an error indicator since we can't get a 1 back from the radius

    // 2 -> Access-Accept

    // 3 -> Access-Reject

    // See RFC2865 for this.

    if (PEAR::isError($result)) {

        $retvalue['auth_val'] = 1;

        $retvalue['error'] = $result->getMessage();

        $retvalue['auth_val'] = 2;

        $retvalue['auth_val'] = 3;

    // Get attributes, even if auth failed.

    // We will push the results in the retvalue array

    if (!$rauth->getAttributes()) {

        $retvalue['error'] = $rauth->getError();

        $retvalue = array_merge($retvalue,$rauth->listAttributes());

        if (!empty($retvalue['session_terminate_time'])) {

        $stt = &$retvalue['session_terminate_time'];

        $stt = strtotime(preg_replace("/\+(\d+):(\d+)$/", " +\${1}\${2}", preg_replace("/(\d+)T(\d+)/", "\${1} \${2}",$stt)));

         }

    }

    // close OO RADIUS_AUTHENTICATION

    $rauth->close();

    return $retvalue;