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System / Auth / Radius - add MSCHAPv2 support using Crypt_CHAP_MSv2(). As MSCHAPv1 doesn't seem to be frequently used and we currently don't have a server setup for it either, we limit the support to v2 only.

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Implemented using the examples in https://github.com/LawnGnome/php-radius/blob/master/examples/radius-auth.php, requires 818fa8e936 for CHAP.php to funciton on php 8.1
This commit is contained in:
Ad Schellevis 2023-06-18 17:19:45 +02:00
parent fc93cdb0b0
commit 58b1ec1ea6
2 changed files with 51 additions and 0 deletions
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1
Makefile
View File

@ -166,6 +166,7 @@ CORE_DEPENDS?= ca_root_nss \
php${CORE_PHP}-ldap \
php${CORE_PHP}-pdo \
php${CORE_PHP}-pecl-radius \
php${CORE_PHP}-pear-Crypt_CHAP \
php${CORE_PHP}-phalcon \
php${CORE_PHP}-phpseclib \
php${CORE_PHP}-session \

50
src/opnsense/mvc/app/library/OPNsense/Auth/Radius.php
View File

@ -147,6 +147,31 @@ class Radius extends Base implements IAuthConnector
}
}
/**
* retrieve configuration options
* @return array
*/
public function getConfigurationOptions()
{
$options = [];
$options['radius_protocol'] = [];
$options['radius_protocol']['name'] = gettext('Protocol');
$options['radius_protocol']['type'] = 'dropdown';
$options['radius_protocol']['default'] = 'PAP';
$options['radius_protocol']['options'] = [
'PAP' => 'PAP',
'MSCHAPv2' => 'MSCHAPv2'
];
$options['radius_protocol']['validate'] = function ($value) {
if (!in_array($value, ['PAP', 'MSCHAPv2'])) {
return [gettext('Invalid protocol specified')];
} else {
return [];
}
};
return $options;
}
/**
* return session info
* @return array mixed named list of authentication properties
@ -423,6 +448,31 @@ class Radius extends Base implements IAuthConnector
$error = radius_strerror($radius);
}
break;
case 'MSCHAPv2':
require_once 'Crypt/CHAP.php';
$crpt = new \Crypt_CHAP_MSv2;
$crpt->username = $username;
$crpt->password = $password;
$resp = pack(
'CCa16a8a24',
$crpt->chapid,
1,
$crpt->peerChallenge,
str_repeat("\0", 8),
$crpt->challengeResponse()
);
if (!radius_put_vendor_attr(
$radius, RADIUS_VENDOR_MICROSOFT, RADIUS_MICROSOFT_MS_CHAP_CHALLENGE, $crpt->authChallenge
)) {
$error = radius_strerror($radius);
} elseif (!radius_put_vendor_attr(
$radius, RADIUS_VENDOR_MICROSOFT, RADIUS_MICROSOFT_MS_CHAP2_RESPONSE, $resp
)) {
$error = radius_strerror($radius);
}
break;
default:
syslog(LOG_ERR, 'Unsupported protocol ' . $this->protocol);
return false;