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<?php
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/*
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* certs.inc
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*
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* part of pfSense (https://www.pfsense.org)
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* Copyright (c) 2008-2016 Electric Sheep Fencing, LLC
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* Copyright (c) 2008 Shrew Soft Inc. All rights reserved.
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* All rights reserved.
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*
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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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*
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgment:
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* "This product includes software developed by the pfSense Project
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* for use in the pfSense® software distribution. (http://www.pfsense.org/).
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*
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* 4. The names "pfSense" and "pfSense Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* coreteam@pfsense.org.
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*
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* 5. Products derived from this software may not be called "pfSense"
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* nor may "pfSense" appear in their names without prior written
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* permission of the Electric Sheep Fencing, LLC.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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*
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* "This product includes software developed by the pfSense Project
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* for use in the pfSense software distribution (http://www.pfsense.org/).
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*
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* THIS SOFTWARE IS PROVIDED BY THE pfSense PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE pfSense PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* 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
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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define("OPEN_SSL_CONF_PATH", "/etc/ssl/openssl.cnf");
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require_once("functions.inc");
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global $openssl_digest_algs;
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$openssl_digest_algs = array("sha1", "sha224", "sha256", "sha384", "sha512", "whirlpool");
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global $openssl_crl_status;
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$openssl_crl_status = array(
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OCSP_REVOKED_STATUS_NOSTATUS => "No Status (default)",
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OCSP_REVOKED_STATUS_UNSPECIFIED => "Unspecified",
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OCSP_REVOKED_STATUS_KEYCOMPROMISE => "Key Compromise",
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OCSP_REVOKED_STATUS_CACOMPROMISE => "CA Compromise",
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OCSP_REVOKED_STATUS_AFFILIATIONCHANGED => "Affiliation Changed",
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OCSP_REVOKED_STATUS_SUPERSEDED => "Superseded",
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OCSP_REVOKED_STATUS_CESSATIONOFOPERATION => "Cessation of Operation",
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OCSP_REVOKED_STATUS_CERTIFICATEHOLD => "Certificate Hold"
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);
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function & lookup_ca($refid) {
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global $config;
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if (is_array($config['ca'])) {
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foreach ($config['ca'] as & $ca) {
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if ($ca['refid'] == $refid) {
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return $ca;
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}
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}
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}
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return false;
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}
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function & lookup_ca_by_subject($subject) {
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global $config;
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if (is_array($config['ca'])) {
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foreach ($config['ca'] as & $ca) {
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$ca_subject = cert_get_subject($ca['crt']);
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if ($ca_subject == $subject) {
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return $ca;
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}
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}
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}
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return false;
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}
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function & lookup_cert($refid) {
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global $config;
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if (is_array($config['cert'])) {
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foreach ($config['cert'] as & $cert) {
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if ($cert['refid'] == $refid) {
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return $cert;
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}
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}
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}
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return false;
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}
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function & lookup_cert_by_name($name) {
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global $config;
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if (is_array($config['cert'])) {
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foreach ($config['cert'] as & $cert) {
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if ($cert['descr'] == $name) {
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return $cert;
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}
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}
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}
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}
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function & lookup_crl($refid) {
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global $config;
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if (is_array($config['crl'])) {
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foreach ($config['crl'] as & $crl) {
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if ($crl['refid'] == $refid) {
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return $crl;
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}
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}
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}
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return false;
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}
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function ca_chain_array(& $cert) {
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if ($cert['caref']) {
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$chain = array();
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$crt = lookup_ca($cert['caref']);
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$chain[] = $crt;
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while ($crt) {
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$caref = $crt['caref'];
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if ($caref) {
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$crt = lookup_ca($caref);
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} else {
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$crt = false;
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}
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if ($crt) {
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$chain[] = $crt;
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}
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}
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return $chain;
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}
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return false;
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}
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function ca_chain(& $cert) {
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if ($cert['caref']) {
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$ca = "";
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$cas = ca_chain_array($cert);
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if (is_array($cas)) {
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foreach ($cas as & $ca_cert) {
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$ca .= base64_decode($ca_cert['crt']);
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$ca .= "\n";
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}
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}
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return $ca;
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}
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return "";
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}
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function ca_import(& $ca, $str, $key = "", $serial = 0) {
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global $config;
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$ca['crt'] = base64_encode($str);
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if (!empty($key)) {
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$ca['prv'] = base64_encode($key);
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}
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if (!empty($serial)) {
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$ca['serial'] = $serial;
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}
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$subject = cert_get_subject($str, false);
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$issuer = cert_get_issuer($str, false);
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// Find my issuer unless self-signed
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if ($issuer <> $subject) {
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$issuer_crt =& lookup_ca_by_subject($issuer);
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if ($issuer_crt) {
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$ca['caref'] = $issuer_crt['refid'];
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}
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}
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/* Correct if child certificate was loaded first */
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if (is_array($config['ca'])) {
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foreach ($config['ca'] as & $oca) {
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$issuer = cert_get_issuer($oca['crt']);
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if ($ca['refid'] <> $oca['refid'] && $issuer == $subject) {
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$oca['caref'] = $ca['refid'];
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}
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}
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}
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if (is_array($config['cert'])) {
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foreach ($config['cert'] as & $cert) {
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$issuer = cert_get_issuer($cert['crt']);
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if ($issuer == $subject) {
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$cert['caref'] = $ca['refid'];
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}
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}
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}
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return true;
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}
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function ca_create(& $ca, $keylen, $lifetime, $dn, $digest_alg = "sha256") {
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$args = array(
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"x509_extensions" => "v3_ca",
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"digest_alg" => $digest_alg,
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"private_key_bits" => (int)$keylen,
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"private_key_type" => OPENSSL_KEYTYPE_RSA,
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"encrypt_key" => false);
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// generate a new key pair
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$res_key = openssl_pkey_new($args);
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if (!$res_key) {
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return false;
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}
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// generate a certificate signing request
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$res_csr = openssl_csr_new($dn, $res_key, $args);
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if (!$res_csr) {
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return false;
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}
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// self sign the certificate
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$res_crt = openssl_csr_sign($res_csr, null, $res_key, $lifetime, $args);
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if (!$res_crt) {
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return false;
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}
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// export our certificate data
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if (!openssl_pkey_export($res_key, $str_key) ||
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!openssl_x509_export($res_crt, $str_crt)) {
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return false;
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}
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// return our ca information
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$ca['crt'] = base64_encode($str_crt);
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$ca['prv'] = base64_encode($str_key);
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$ca['serial'] = 0;
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256
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return true;
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}
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260
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function ca_inter_create(& $ca, $keylen, $lifetime, $dn, $caref, $digest_alg = "sha256") {
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// Create Intermediate Certificate Authority
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$signing_ca =& lookup_ca($caref);
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if (!$signing_ca) {
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return false;
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}
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266
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267
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$signing_ca_res_crt = openssl_x509_read(base64_decode($signing_ca['crt']));
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268
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$signing_ca_res_key = openssl_pkey_get_private(array(0 => base64_decode($signing_ca['prv']) , 1 => ""));
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269
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if (!$signing_ca_res_crt || !$signing_ca_res_key) {
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270
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return false;
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271
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}
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272
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$signing_ca_serial = ++$signing_ca['serial'];
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273
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274
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$args = array(
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"x509_extensions" => "v3_ca",
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"digest_alg" => $digest_alg,
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"private_key_bits" => (int)$keylen,
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"private_key_type" => OPENSSL_KEYTYPE_RSA,
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"encrypt_key" => false);
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280
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281
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// generate a new key pair
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282
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$res_key = openssl_pkey_new($args);
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283
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if (!$res_key) {
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284
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return false;
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285
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}
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286
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287
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// generate a certificate signing request
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288
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$res_csr = openssl_csr_new($dn, $res_key, $args);
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289
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if (!$res_csr) {
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290
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return false;
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291
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}
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292
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293
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// Sign the certificate
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294
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$res_crt = openssl_csr_sign($res_csr, $signing_ca_res_crt, $signing_ca_res_key, $lifetime, $args, $signing_ca_serial);
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295
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if (!$res_crt) {
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296
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return false;
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297
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}
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298
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299
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// export our certificate data
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300
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if (!openssl_pkey_export($res_key, $str_key) ||
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301
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!openssl_x509_export($res_crt, $str_crt)) {
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302
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return false;
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303
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}
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304
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305
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// return our ca information
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306
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$ca['crt'] = base64_encode($str_crt);
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307
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$ca['prv'] = base64_encode($str_key);
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308
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$ca['serial'] = 0;
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309
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$ca['caref'] = $caref;
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310
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311
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return true;
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312
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}
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313
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314
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function cert_import(& $cert, $crt_str, $key_str) {
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315
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316
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$cert['crt'] = base64_encode($crt_str);
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317
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$cert['prv'] = base64_encode($key_str);
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318
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319
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$subject = cert_get_subject($crt_str, false);
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320
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$issuer = cert_get_issuer($crt_str, false);
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321
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322
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// Find my issuer unless self-signed
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323
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if ($issuer <> $subject) {
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324
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$issuer_crt =& lookup_ca_by_subject($issuer);
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325
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if ($issuer_crt) {
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326
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$cert['caref'] = $issuer_crt['refid'];
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327
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}
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328
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}
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329
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return true;
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330
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}
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331
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332
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function cert_create(& $cert, $caref, $keylen, $lifetime, $dn, $type = "user", $digest_alg = "sha256") {
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333
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334
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$cert['type'] = $type;
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335
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336
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if ($type != "self-signed") {
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337
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$cert['caref'] = $caref;
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338
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$ca =& lookup_ca($caref);
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339
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if (!$ca) {
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340
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return false;
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341
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}
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342
|
|
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343
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$ca_str_crt = base64_decode($ca['crt']);
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344
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$ca_str_key = base64_decode($ca['prv']);
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345
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$ca_res_crt = openssl_x509_read($ca_str_crt);
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346
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$ca_res_key = openssl_pkey_get_private(array(0 => $ca_str_key, 1 => ""));
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347
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if (!$ca_res_key) {
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348
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return false;
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349
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}
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350
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$ca_serial = ++$ca['serial'];
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351
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}
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352
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353
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switch ($type) {
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354
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case "ca":
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355
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$cert_type = "v3_ca";
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356
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break;
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357
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case "server":
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358
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case "self-signed":
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359
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$cert_type = "server";
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360
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break;
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361
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default:
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362
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$cert_type = "usr_cert";
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363
|
break;
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364
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}
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|
365
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|
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366
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// in case of using Subject Alternative Names use other sections (with postfix '_san')
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|
367
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// pass subjectAltName over environment variable 'SAN'
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|
368
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if ($dn['subjectAltName']) {
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369
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putenv("SAN={$dn['subjectAltName']}"); // subjectAltName can be set _only_ via configuration file
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370
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$cert_type .= '_san';
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371
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unset($dn['subjectAltName']);
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372
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}
|
|
373
|
|
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374
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$args = array(
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375
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"x509_extensions" => $cert_type,
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376
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"digest_alg" => $digest_alg,
|
|
377
|
"private_key_bits" => (int)$keylen,
|
|
378
|
"private_key_type" => OPENSSL_KEYTYPE_RSA,
|
|
379
|
"encrypt_key" => false);
|
|
380
|
|
|
381
|
// generate a new key pair
|
|
382
|
$res_key = openssl_pkey_new($args);
|
|
383
|
if (!$res_key) {
|
|
384
|
return false;
|
|
385
|
}
|
|
386
|
|
|
387
|
// If this is a self-signed cert, blank out the CA and sign with the cert's key
|
|
388
|
if ($type == "self-signed") {
|
|
389
|
$ca = null;
|
|
390
|
$ca_res_crt = null;
|
|
391
|
$ca_res_key = $res_key;
|
|
392
|
$ca_serial = 0;
|
|
393
|
$cert['type'] = "server";
|
|
394
|
}
|
|
395
|
|
|
396
|
// generate a certificate signing request
|
|
397
|
$res_csr = openssl_csr_new($dn, $res_key, $args);
|
|
398
|
if (!$res_csr) {
|
|
399
|
return false;
|
|
400
|
}
|
|
401
|
|
|
402
|
// sign the certificate using an internal CA
|
|
403
|
$res_crt = openssl_csr_sign($res_csr, $ca_res_crt, $ca_res_key, $lifetime,
|
|
404
|
$args, $ca_serial);
|
|
405
|
if (!$res_crt) {
|
|
406
|
return false;
|
|
407
|
}
|
|
408
|
|
|
409
|
// export our certificate data
|
|
410
|
if (!openssl_pkey_export($res_key, $str_key) ||
|
|
411
|
!openssl_x509_export($res_crt, $str_crt)) {
|
|
412
|
return false;
|
|
413
|
}
|
|
414
|
|
|
415
|
// return our certificate information
|
|
416
|
$cert['crt'] = base64_encode($str_crt);
|
|
417
|
$cert['prv'] = base64_encode($str_key);
|
|
418
|
|
|
419
|
return true;
|
|
420
|
}
|
|
421
|
|
|
422
|
function csr_generate(& $cert, $keylen, $dn, $digest_alg = "sha256") {
|
|
423
|
|
|
424
|
$args = array(
|
|
425
|
"x509_extensions" => "v3_req",
|
|
426
|
"digest_alg" => $digest_alg,
|
|
427
|
"private_key_bits" => (int)$keylen,
|
|
428
|
"private_key_type" => OPENSSL_KEYTYPE_RSA,
|
|
429
|
"encrypt_key" => false);
|
|
430
|
|
|
431
|
// generate a new key pair
|
|
432
|
$res_key = openssl_pkey_new($args);
|
|
433
|
if (!$res_key) {
|
|
434
|
return false;
|
|
435
|
}
|
|
436
|
|
|
437
|
// generate a certificate signing request
|
|
438
|
$res_csr = openssl_csr_new($dn, $res_key, $args);
|
|
439
|
if (!$res_csr) {
|
|
440
|
return false;
|
|
441
|
}
|
|
442
|
|
|
443
|
// export our request data
|
|
444
|
if (!openssl_pkey_export($res_key, $str_key) ||
|
|
445
|
!openssl_csr_export($res_csr, $str_csr)) {
|
|
446
|
return false;
|
|
447
|
}
|
|
448
|
|
|
449
|
// return our request information
|
|
450
|
$cert['csr'] = base64_encode($str_csr);
|
|
451
|
$cert['prv'] = base64_encode($str_key);
|
|
452
|
|
|
453
|
return true;
|
|
454
|
}
|
|
455
|
|
|
456
|
function csr_complete(& $cert, $str_crt) {
|
|
457
|
|
|
458
|
// return our request information
|
|
459
|
$cert['crt'] = base64_encode($str_crt);
|
|
460
|
unset($cert['csr']);
|
|
461
|
|
|
462
|
return true;
|
|
463
|
}
|
|
464
|
|
|
465
|
function csr_get_subject($str_crt, $decode = true) {
|
|
466
|
|
|
467
|
if ($decode) {
|
|
468
|
$str_crt = base64_decode($str_crt);
|
|
469
|
}
|
|
470
|
|
|
471
|
$components = openssl_csr_get_subject($str_crt);
|
|
472
|
|
|
473
|
if (empty($components) || !is_array($components)) {
|
|
474
|
return "unknown";
|
|
475
|
}
|
|
476
|
|
|
477
|
ksort($components);
|
|
478
|
foreach ($components as $a => $v) {
|
|
479
|
if (!strlen($subject)) {
|
|
480
|
$subject = "{$a}={$v}";
|
|
481
|
} else {
|
|
482
|
$subject = "{$a}={$v}, {$subject}";
|
|
483
|
}
|
|
484
|
}
|
|
485
|
|
|
486
|
return $subject;
|
|
487
|
}
|
|
488
|
|
|
489
|
function cert_get_subject($str_crt, $decode = true) {
|
|
490
|
|
|
491
|
if ($decode) {
|
|
492
|
$str_crt = base64_decode($str_crt);
|
|
493
|
}
|
|
494
|
|
|
495
|
$inf_crt = openssl_x509_parse($str_crt);
|
|
496
|
$components = $inf_crt['subject'];
|
|
497
|
|
|
498
|
if (empty($components) || !is_array($components)) {
|
|
499
|
return "unknown";
|
|
500
|
}
|
|
501
|
|
|
502
|
ksort($components);
|
|
503
|
foreach ($components as $a => $v) {
|
|
504
|
if (is_array($v)) {
|
|
505
|
ksort($v);
|
|
506
|
foreach ($v as $w) {
|
|
507
|
$asubject = "{$a}={$w}";
|
|
508
|
$subject = (strlen($subject)) ? "{$asubject}, {$subject}" : $asubject;
|
|
509
|
}
|
|
510
|
} else {
|
|
511
|
$asubject = "{$a}={$v}";
|
|
512
|
$subject = (strlen($subject)) ? "{$asubject}, {$subject}" : $asubject;
|
|
513
|
}
|
|
514
|
}
|
|
515
|
|
|
516
|
return $subject;
|
|
517
|
}
|
|
518
|
|
|
519
|
function cert_get_subject_array($crt) {
|
|
520
|
$str_crt = base64_decode($crt);
|
|
521
|
$inf_crt = openssl_x509_parse($str_crt);
|
|
522
|
$components = $inf_crt['subject'];
|
|
523
|
|
|
524
|
if (!is_array($components)) {
|
|
525
|
return;
|
|
526
|
}
|
|
527
|
|
|
528
|
$subject_array = array();
|
|
529
|
|
|
530
|
foreach ($components as $a => $v) {
|
|
531
|
$subject_array[] = array('a' => $a, 'v' => $v);
|
|
532
|
}
|
|
533
|
|
|
534
|
return $subject_array;
|
|
535
|
}
|
|
536
|
|
|
537
|
function cert_get_subject_hash($crt) {
|
|
538
|
$str_crt = base64_decode($crt);
|
|
539
|
$inf_crt = openssl_x509_parse($str_crt);
|
|
540
|
return $inf_crt['subject'];
|
|
541
|
}
|
|
542
|
|
|
543
|
function cert_get_issuer($str_crt, $decode = true) {
|
|
544
|
|
|
545
|
if ($decode) {
|
|
546
|
$str_crt = base64_decode($str_crt);
|
|
547
|
}
|
|
548
|
|
|
549
|
$inf_crt = openssl_x509_parse($str_crt);
|
|
550
|
$components = $inf_crt['issuer'];
|
|
551
|
|
|
552
|
if (empty($components) || !is_array($components)) {
|
|
553
|
return "unknown";
|
|
554
|
}
|
|
555
|
|
|
556
|
ksort($components);
|
|
557
|
foreach ($components as $a => $v) {
|
|
558
|
if (is_array($v)) {
|
|
559
|
ksort($v);
|
|
560
|
foreach ($v as $w) {
|
|
561
|
$aissuer = "{$a}={$w}";
|
|
562
|
$issuer = (strlen($issuer)) ? "{$aissuer}, {$issuer}" : $aissuer;
|
|
563
|
}
|
|
564
|
} else {
|
|
565
|
$aissuer = "{$a}={$v}";
|
|
566
|
$issuer = (strlen($issuer)) ? "{$aissuer}, {$issuer}" : $aissuer;
|
|
567
|
}
|
|
568
|
}
|
|
569
|
|
|
570
|
return $issuer;
|
|
571
|
}
|
|
572
|
|
|
573
|
/* this function works on x509 (crt), rsa key (prv), and req(csr) */
|
|
574
|
function cert_get_modulus($str_crt, $decode = true, $type = "crt") {
|
|
575
|
if ($decode) {
|
|
576
|
$str_crt = base64_decode($str_crt);
|
|
577
|
}
|
|
578
|
|
|
579
|
$modulus = "";
|
|
580
|
if (in_array($type, array("crt", "prv", "csr"))) {
|
|
581
|
$type = str_replace(array("crt", "prv", "csr"), array("x509", "rsa", "req"), $type);
|
|
582
|
$modulus = exec("echo \"{$str_crt}\" | openssl {$type} -noout -modulus");
|
|
583
|
}
|
|
584
|
return $modulus;
|
|
585
|
}
|
|
586
|
|
|
587
|
/* Same but returns modulus keysize not modulus itself */
|
|
588
|
function cert_get_modulus_keysize($str_crt, $decode = true, $type = "crt") {
|
|
589
|
// modulus usually returned as "modulus=.....". Remove anything before an "=" and return 4 x (hex string length)
|
|
590
|
$raw_modulus = explode('=', cert_get_modulus($str_crt, $decode, $type));
|
|
591
|
return strlen(array_pop($raw_modulus))*4;
|
|
592
|
}
|
|
593
|
|
|
594
|
function csr_get_modulus($str_crt, $decode = true) {
|
|
595
|
return cert_get_modulus($str_crt, $decode, "csr");
|
|
596
|
}
|
|
597
|
|
|
598
|
function cert_get_purpose($str_crt, $decode = true) {
|
|
599
|
if ($decode) {
|
|
600
|
$str_crt = base64_decode($str_crt);
|
|
601
|
}
|
|
602
|
$crt_details = openssl_x509_parse($str_crt);
|
|
603
|
$purpose = array();
|
|
604
|
$purpose['ca'] = (stristr($crt_details['extensions']['basicConstraints'], 'CA:TRUE') === false) ? 'No': 'Yes';
|
|
605
|
$purpose['server'] = ($crt_details['extensions']['nsCertType'] == "SSL Server") ? 'Yes': 'No';
|
|
606
|
return $purpose;
|
|
607
|
}
|
|
608
|
|
|
609
|
function cert_get_dates($str_crt, $decode = true) {
|
|
610
|
if ($decode) {
|
|
611
|
$str_crt = base64_decode($str_crt);
|
|
612
|
}
|
|
613
|
$crt_details = openssl_x509_parse($str_crt);
|
|
614
|
if ($crt_details['validFrom_time_t'] > 0) {
|
|
615
|
$start = date('r', $crt_details['validFrom_time_t']);
|
|
616
|
}
|
|
617
|
if ($crt_details['validTo_time_t'] > 0) {
|
|
618
|
$end = date('r', $crt_details['validTo_time_t']);
|
|
619
|
}
|
|
620
|
return array($start, $end);
|
|
621
|
}
|
|
622
|
|
|
623
|
function cert_get_serial($str_crt, $decode = true) {
|
|
624
|
if ($decode) {
|
|
625
|
$str_crt = base64_decode($str_crt);
|
|
626
|
}
|
|
627
|
$crt_details = openssl_x509_parse($str_crt);
|
|
628
|
if (isset($crt_details['serialNumber']) && !empty($crt_details['serialNumber'])) {
|
|
629
|
return $crt_details['serialNumber'];
|
|
630
|
} else {
|
|
631
|
return NULL;
|
|
632
|
}
|
|
633
|
}
|
|
634
|
|
|
635
|
function prv_get_modulus($str_crt, $decode = true) {
|
|
636
|
return cert_get_modulus($str_crt, $decode, "prv");
|
|
637
|
}
|
|
638
|
|
|
639
|
function is_user_cert($certref) {
|
|
640
|
global $config;
|
|
641
|
if (!is_array($config['system']['user'])) {
|
|
642
|
return;
|
|
643
|
}
|
|
644
|
foreach ($config['system']['user'] as $user) {
|
|
645
|
if (!is_array($user['cert'])) {
|
|
646
|
continue;
|
|
647
|
}
|
|
648
|
foreach ($user['cert'] as $cert) {
|
|
649
|
if ($certref == $cert) {
|
|
650
|
return true;
|
|
651
|
}
|
|
652
|
}
|
|
653
|
}
|
|
654
|
return false;
|
|
655
|
}
|
|
656
|
|
|
657
|
function is_openvpn_server_cert($certref) {
|
|
658
|
global $config;
|
|
659
|
if (!is_array($config['openvpn']['openvpn-server'])) {
|
|
660
|
return;
|
|
661
|
}
|
|
662
|
foreach ($config['openvpn']['openvpn-server'] as $ovpns) {
|
|
663
|
if ($ovpns['certref'] == $certref) {
|
|
664
|
return true;
|
|
665
|
}
|
|
666
|
}
|
|
667
|
return false;
|
|
668
|
}
|
|
669
|
|
|
670
|
function is_openvpn_client_cert($certref) {
|
|
671
|
global $config;
|
|
672
|
if (!is_array($config['openvpn']['openvpn-client'])) {
|
|
673
|
return;
|
|
674
|
}
|
|
675
|
foreach ($config['openvpn']['openvpn-client'] as $ovpnc) {
|
|
676
|
if ($ovpnc['certref'] == $certref) {
|
|
677
|
return true;
|
|
678
|
}
|
|
679
|
}
|
|
680
|
return false;
|
|
681
|
}
|
|
682
|
|
|
683
|
function is_ipsec_cert($certref) {
|
|
684
|
global $config;
|
|
685
|
if (!is_array($config['ipsec']['phase1'])) {
|
|
686
|
return;
|
|
687
|
}
|
|
688
|
foreach ($config['ipsec']['phase1'] as $ipsec) {
|
|
689
|
if ($ipsec['certref'] == $certref) {
|
|
690
|
return true;
|
|
691
|
}
|
|
692
|
}
|
|
693
|
return false;
|
|
694
|
}
|
|
695
|
|
|
696
|
function is_webgui_cert($certref) {
|
|
697
|
global $config;
|
|
698
|
if (($config['system']['webgui']['ssl-certref'] == $certref) &&
|
|
699
|
($config['system']['webgui']['protocol'] != "http")) {
|
|
700
|
return true;
|
|
701
|
}
|
|
702
|
}
|
|
703
|
|
|
704
|
function is_package_cert($certref) {
|
|
705
|
$pluginparams = array();
|
|
706
|
$pluginparams['type'] = 'certificates';
|
|
707
|
$pluginparams['event'] = 'used_certificates';
|
|
708
|
|
|
709
|
$certificates_used_by_packages = pkg_call_plugins('plugin_certificates', $pluginparams);
|
|
710
|
|
|
711
|
/* Check if any package is using certificate */
|
|
712
|
foreach ($certificates_used_by_packages as $name => $package) {
|
|
713
|
if (is_array($package['certificatelist'][$certref]) &&
|
|
714
|
isset($package['certificatelist'][$certref]) > 0) {
|
|
715
|
return true;
|
|
716
|
}
|
|
717
|
}
|
|
718
|
}
|
|
719
|
|
|
720
|
function is_captiveportal_cert($certref) {
|
|
721
|
global $config;
|
|
722
|
if (!is_array($config['captiveportal'])) {
|
|
723
|
return;
|
|
724
|
}
|
|
725
|
foreach ($config['captiveportal'] as $portal) {
|
|
726
|
if (isset($portal['enable']) && isset($portal['httpslogin']) && ($portal['certref'] == $certref)) {
|
|
727
|
return true;
|
|
728
|
}
|
|
729
|
}
|
|
730
|
return false;
|
|
731
|
}
|
|
732
|
|
|
733
|
function cert_in_use($certref) {
|
|
734
|
|
|
735
|
return (is_webgui_cert($certref) ||
|
|
736
|
is_user_cert($certref) ||
|
|
737
|
is_openvpn_server_cert($certref) ||
|
|
738
|
is_openvpn_client_cert($certref) ||
|
|
739
|
is_ipsec_cert($certref) ||
|
|
740
|
is_captiveportal_cert($certref) ||
|
|
741
|
is_package_cert($certref));
|
|
742
|
}
|
|
743
|
|
|
744
|
function crl_create(& $crl, $caref, $name, $serial = 0, $lifetime = 9999) {
|
|
745
|
global $config;
|
|
746
|
$ca =& lookup_ca($caref);
|
|
747
|
if (!$ca) {
|
|
748
|
return false;
|
|
749
|
}
|
|
750
|
$crl['descr'] = $name;
|
|
751
|
$crl['caref'] = $caref;
|
|
752
|
$crl['serial'] = $serial;
|
|
753
|
$crl['lifetime'] = $lifetime;
|
|
754
|
$crl['cert'] = array();
|
|
755
|
$crl_res = crl_update($crl);
|
|
756
|
$config['crl'][] = $crl;
|
|
757
|
return $crl_res;
|
|
758
|
}
|
|
759
|
|
|
760
|
function crl_update(& $crl) {
|
|
761
|
global $config;
|
|
762
|
$ca =& lookup_ca($crl['caref']);
|
|
763
|
if (!$ca) {
|
|
764
|
return false;
|
|
765
|
}
|
|
766
|
// If we have text but no certs, it was imported and cannot be updated.
|
|
767
|
if (($crl["method"] != "internal") && (!empty($crl['text']) && empty($crl['cert']))) {
|
|
768
|
return false;
|
|
769
|
}
|
|
770
|
$crl['serial']++;
|
|
771
|
$ca_str_crt = base64_decode($ca['crt']);
|
|
772
|
$ca_str_key = base64_decode($ca['prv']);
|
|
773
|
$crl_res = openssl_crl_new($ca_str_crt, $crl['serial'], $crl['lifetime']);
|
|
774
|
if (is_array($crl['cert']) && (count($crl['cert']) > 0)) {
|
|
775
|
foreach ($crl['cert'] as $cert) {
|
|
776
|
openssl_crl_revoke_cert($crl_res, base64_decode($cert["crt"]), $cert["revoke_time"], $cert["reason"]);
|
|
777
|
}
|
|
778
|
}
|
|
779
|
openssl_crl_export($crl_res, $crl_text, $ca_str_key);
|
|
780
|
$crl['text'] = base64_encode($crl_text);
|
|
781
|
return $crl_res;
|
|
782
|
}
|
|
783
|
|
|
784
|
function cert_revoke($cert, & $crl, $reason = OCSP_REVOKED_STATUS_UNSPECIFIED) {
|
|
785
|
global $config;
|
|
786
|
if (is_cert_revoked($cert, $crl['refid'])) {
|
|
787
|
return true;
|
|
788
|
}
|
|
789
|
// If we have text but no certs, it was imported and cannot be updated.
|
|
790
|
if (!is_crl_internal($crl)) {
|
|
791
|
return false;
|
|
792
|
}
|
|
793
|
$cert["reason"] = $reason;
|
|
794
|
$cert["revoke_time"] = time();
|
|
795
|
$crl["cert"][] = $cert;
|
|
796
|
crl_update($crl);
|
|
797
|
return true;
|
|
798
|
}
|
|
799
|
|
|
800
|
function cert_unrevoke($cert, & $crl) {
|
|
801
|
global $config;
|
|
802
|
if (!is_crl_internal($crl)) {
|
|
803
|
return false;
|
|
804
|
}
|
|
805
|
foreach ($crl['cert'] as $id => $rcert) {
|
|
806
|
if (($rcert['refid'] == $cert['refid']) || ($rcert['descr'] == $cert['descr'])) {
|
|
807
|
unset($crl['cert'][$id]);
|
|
808
|
if (count($crl['cert']) == 0) {
|
|
809
|
// Protect against accidentally switching the type to imported, for older CRLs
|
|
810
|
if (!isset($crl['method'])) {
|
|
811
|
$crl['method'] = "internal";
|
|
812
|
}
|
|
813
|
crl_update($crl);
|
|
814
|
} else {
|
|
815
|
crl_update($crl);
|
|
816
|
}
|
|
817
|
return true;
|
|
818
|
}
|
|
819
|
}
|
|
820
|
return false;
|
|
821
|
}
|
|
822
|
|
|
823
|
/* Compare two certificates to see if they match. */
|
|
824
|
function cert_compare($cert1, $cert2) {
|
|
825
|
/* Ensure two certs are identical by first checking that their issuers match, then
|
|
826
|
subjects, then serial numbers, and finally the moduli. Anything less strict
|
|
827
|
could accidentally count two similar, but different, certificates as
|
|
828
|
being identical. */
|
|
829
|
$c1 = base64_decode($cert1['crt']);
|
|
830
|
$c2 = base64_decode($cert2['crt']);
|
|
831
|
if ((cert_get_issuer($c1, false) == cert_get_issuer($c2, false)) &&
|
|
832
|
(cert_get_subject($c1, false) == cert_get_subject($c2, false)) &&
|
|
833
|
(cert_get_serial($c1, false) == cert_get_serial($c2, false)) &&
|
|
834
|
(cert_get_modulus($c1, false) == cert_get_modulus($c2, false))) {
|
|
835
|
return true;
|
|
836
|
}
|
|
837
|
return false;
|
|
838
|
}
|
|
839
|
|
|
840
|
function is_cert_revoked($cert, $crlref = "") {
|
|
841
|
global $config;
|
|
842
|
if (!is_array($config['crl'])) {
|
|
843
|
return false;
|
|
844
|
}
|
|
845
|
|
|
846
|
if (!empty($crlref)) {
|
|
847
|
$crl = lookup_crl($crlref);
|
|
848
|
if (!is_array($crl['cert'])) {
|
|
849
|
return false;
|
|
850
|
}
|
|
851
|
foreach ($crl['cert'] as $rcert) {
|
|
852
|
if (cert_compare($rcert, $cert)) {
|
|
853
|
return true;
|
|
854
|
}
|
|
855
|
}
|
|
856
|
} else {
|
|
857
|
foreach ($config['crl'] as $crl) {
|
|
858
|
if (!is_array($crl['cert'])) {
|
|
859
|
continue;
|
|
860
|
}
|
|
861
|
foreach ($crl['cert'] as $rcert) {
|
|
862
|
if (cert_compare($rcert, $cert)) {
|
|
863
|
return true;
|
|
864
|
}
|
|
865
|
}
|
|
866
|
}
|
|
867
|
}
|
|
868
|
return false;
|
|
869
|
}
|
|
870
|
|
|
871
|
function is_openvpn_server_crl($crlref) {
|
|
872
|
global $config;
|
|
873
|
if (!is_array($config['openvpn']['openvpn-server'])) {
|
|
874
|
return;
|
|
875
|
}
|
|
876
|
foreach ($config['openvpn']['openvpn-server'] as $ovpns) {
|
|
877
|
if (!empty($ovpns['crlref']) && ($ovpns['crlref'] == $crlref)) {
|
|
878
|
return true;
|
|
879
|
}
|
|
880
|
}
|
|
881
|
return false;
|
|
882
|
}
|
|
883
|
|
|
884
|
// Keep this general to allow for future expansion. See cert_in_use() above.
|
|
885
|
function crl_in_use($crlref) {
|
|
886
|
return (is_openvpn_server_crl($crlref));
|
|
887
|
}
|
|
888
|
|
|
889
|
function is_crl_internal($crl) {
|
|
890
|
return (!(!empty($crl['text']) && empty($crl['cert'])) || ($crl["method"] == "internal"));
|
|
891
|
}
|
|
892
|
|
|
893
|
function cert_get_cn($crt, $isref = false) {
|
|
894
|
/* If this is a certref, not an actual cert, look up the cert first */
|
|
895
|
if ($isref) {
|
|
896
|
$cert = lookup_cert($crt);
|
|
897
|
/* If it's not a valid cert, bail. */
|
|
898
|
if (!(is_array($cert) && !empty($cert['crt']))) {
|
|
899
|
return "";
|
|
900
|
}
|
|
901
|
$cert = $cert['crt'];
|
|
902
|
} else {
|
|
903
|
$cert = $crt;
|
|
904
|
}
|
|
905
|
$sub = cert_get_subject_array($cert);
|
|
906
|
if (is_array($sub)) {
|
|
907
|
foreach ($sub as $s) {
|
|
908
|
if (strtoupper($s['a']) == "CN") {
|
|
909
|
return $s['v'];
|
|
910
|
}
|
|
911
|
}
|
|
912
|
}
|
|
913
|
return "";
|
|
914
|
}
|
|
915
|
|
|
916
|
?>
|