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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 Rubicon Communications, LLC (Netgate)
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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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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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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");
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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 = "") {
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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'] = 0;
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} else {
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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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return true;
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}
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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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$signing_ca_res_crt = openssl_x509_read(base64_decode($signing_ca['crt']));
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$signing_ca_res_key = openssl_pkey_get_private(array(0 => base64_decode($signing_ca['prv']) , 1 => ""));
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if (!$signing_ca_res_crt || !$signing_ca_res_key) {
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return false;
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241
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}
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242
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$signing_ca_serial = ++$signing_ca['serial'];
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244
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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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250
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251
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// generate a new key pair
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252
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$res_key = openssl_pkey_new($args);
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253
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if (!$res_key) {
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254
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return false;
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255
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}
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256
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257
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// generate a certificate signing request
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258
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$res_csr = openssl_csr_new($dn, $res_key, $args);
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259
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if (!$res_csr) {
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260
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return false;
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261
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}
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262
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263
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// Sign the certificate
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264
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$res_crt = openssl_csr_sign($res_csr, $signing_ca_res_crt, $signing_ca_res_key, $lifetime, $args, $signing_ca_serial);
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265
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if (!$res_crt) {
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266
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return false;
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267
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}
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268
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269
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// export our certificate data
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270
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if (!openssl_pkey_export($res_key, $str_key) ||
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!openssl_x509_export($res_crt, $str_crt)) {
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272
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return false;
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273
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}
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274
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275
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// return our ca information
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276
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$ca['crt'] = base64_encode($str_crt);
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$ca['prv'] = base64_encode($str_key);
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278
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$ca['serial'] = 0;
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279
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$ca['caref'] = $caref;
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280
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281
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return true;
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282
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}
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283
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284
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function cert_import(& $cert, $crt_str, $key_str) {
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285
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286
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$cert['crt'] = base64_encode($crt_str);
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287
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$cert['prv'] = base64_encode($key_str);
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288
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289
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$subject = cert_get_subject($crt_str, false);
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290
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$issuer = cert_get_issuer($crt_str, false);
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291
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292
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// Find my issuer unless self-signed
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293
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if ($issuer <> $subject) {
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294
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$issuer_crt =& lookup_ca_by_subject($issuer);
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295
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if ($issuer_crt) {
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296
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$cert['caref'] = $issuer_crt['refid'];
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297
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}
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298
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}
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299
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return true;
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300
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}
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301
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302
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function cert_create(& $cert, $caref, $keylen, $lifetime, $dn, $type = "user", $digest_alg = "sha256") {
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303
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304
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$cert['type'] = $type;
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305
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306
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if ($type != "self-signed") {
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307
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$cert['caref'] = $caref;
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308
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$ca =& lookup_ca($caref);
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309
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if (!$ca) {
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310
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return false;
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311
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}
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312
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313
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$ca_str_crt = base64_decode($ca['crt']);
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314
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$ca_str_key = base64_decode($ca['prv']);
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315
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$ca_res_crt = openssl_x509_read($ca_str_crt);
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316
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$ca_res_key = openssl_pkey_get_private(array(0 => $ca_str_key, 1 => ""));
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317
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if (!$ca_res_key) {
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318
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return false;
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319
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}
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320
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if (empty($ca['serial'])) {
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321
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$ca['serial'] = 0;
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322
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}
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323
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$ca_serial = ++$ca['serial'];
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324
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}
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325
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326
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switch ($type) {
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327
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case "ca":
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328
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$cert_type = "v3_ca";
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329
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break;
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330
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case "server":
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331
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case "self-signed":
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332
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$cert_type = "server";
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333
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break;
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334
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default:
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335
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$cert_type = "usr_cert";
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336
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break;
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337
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}
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338
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|
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339
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// in case of using Subject Alternative Names use other sections (with postfix '_san')
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340
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// pass subjectAltName over environment variable 'SAN'
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341
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if ($dn['subjectAltName']) {
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342
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putenv("SAN={$dn['subjectAltName']}"); // subjectAltName can be set _only_ via configuration file
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343
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$cert_type .= '_san';
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344
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unset($dn['subjectAltName']);
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345
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}
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346
|
|
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347
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$args = array(
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348
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"x509_extensions" => $cert_type,
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349
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"digest_alg" => $digest_alg,
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350
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"private_key_bits" => (int)$keylen,
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351
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"private_key_type" => OPENSSL_KEYTYPE_RSA,
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352
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"encrypt_key" => false);
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353
|
|
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354
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// generate a new key pair
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355
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$res_key = openssl_pkey_new($args);
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356
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if (!$res_key) {
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357
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return false;
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358
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}
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|
359
|
|
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360
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// If this is a self-signed cert, blank out the CA and sign with the cert's key
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361
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if ($type == "self-signed") {
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362
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$ca = null;
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363
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$ca_res_crt = null;
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364
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$ca_res_key = $res_key;
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365
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$ca_serial = 0;
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366
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$cert['type'] = "server";
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367
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}
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368
|
|
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369
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// generate a certificate signing request
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370
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$res_csr = openssl_csr_new($dn, $res_key, $args);
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371
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if (!$res_csr) {
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372
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return false;
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373
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}
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|
374
|
|
|
375
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// sign the certificate using an internal CA
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|
376
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$res_crt = openssl_csr_sign($res_csr, $ca_res_crt, $ca_res_key, $lifetime,
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|
377
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$args, $ca_serial);
|
|
378
|
if (!$res_crt) {
|
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379
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return false;
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|
380
|
}
|
|
381
|
|
|
382
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// export our certificate data
|
|
383
|
if (!openssl_pkey_export($res_key, $str_key) ||
|
|
384
|
!openssl_x509_export($res_crt, $str_crt)) {
|
|
385
|
return false;
|
|
386
|
}
|
|
387
|
|
|
388
|
// return our certificate information
|
|
389
|
$cert['crt'] = base64_encode($str_crt);
|
|
390
|
$cert['prv'] = base64_encode($str_key);
|
|
391
|
|
|
392
|
return true;
|
|
393
|
}
|
|
394
|
|
|
395
|
function csr_generate(& $cert, $keylen, $dn, $digest_alg = "sha256") {
|
|
396
|
|
|
397
|
$args = array(
|
|
398
|
"x509_extensions" => "v3_req",
|
|
399
|
"digest_alg" => $digest_alg,
|
|
400
|
"private_key_bits" => (int)$keylen,
|
|
401
|
"private_key_type" => OPENSSL_KEYTYPE_RSA,
|
|
402
|
"encrypt_key" => false);
|
|
403
|
|
|
404
|
// generate a new key pair
|
|
405
|
$res_key = openssl_pkey_new($args);
|
|
406
|
if (!$res_key) {
|
|
407
|
return false;
|
|
408
|
}
|
|
409
|
|
|
410
|
// generate a certificate signing request
|
|
411
|
$res_csr = openssl_csr_new($dn, $res_key, $args);
|
|
412
|
if (!$res_csr) {
|
|
413
|
return false;
|
|
414
|
}
|
|
415
|
|
|
416
|
// export our request data
|
|
417
|
if (!openssl_pkey_export($res_key, $str_key) ||
|
|
418
|
!openssl_csr_export($res_csr, $str_csr)) {
|
|
419
|
return false;
|
|
420
|
}
|
|
421
|
|
|
422
|
// return our request information
|
|
423
|
$cert['csr'] = base64_encode($str_csr);
|
|
424
|
$cert['prv'] = base64_encode($str_key);
|
|
425
|
|
|
426
|
return true;
|
|
427
|
}
|
|
428
|
|
|
429
|
function csr_complete(& $cert, $str_crt) {
|
|
430
|
$str_key = base64_decode($cert['prv']);
|
|
431
|
cert_import($cert, $str_crt, $str_key);
|
|
432
|
unset($cert['csr']);
|
|
433
|
return true;
|
|
434
|
}
|
|
435
|
|
|
436
|
function csr_get_subject($str_crt, $decode = true) {
|
|
437
|
|
|
438
|
if ($decode) {
|
|
439
|
$str_crt = base64_decode($str_crt);
|
|
440
|
}
|
|
441
|
|
|
442
|
$components = openssl_csr_get_subject($str_crt);
|
|
443
|
|
|
444
|
if (empty($components) || !is_array($components)) {
|
|
445
|
return "unknown";
|
|
446
|
}
|
|
447
|
|
|
448
|
ksort($components);
|
|
449
|
foreach ($components as $a => $v) {
|
|
450
|
if (!strlen($subject)) {
|
|
451
|
$subject = "{$a}={$v}";
|
|
452
|
} else {
|
|
453
|
$subject = "{$a}={$v}, {$subject}";
|
|
454
|
}
|
|
455
|
}
|
|
456
|
|
|
457
|
return $subject;
|
|
458
|
}
|
|
459
|
|
|
460
|
function cert_get_subject($str_crt, $decode = true) {
|
|
461
|
|
|
462
|
if ($decode) {
|
|
463
|
$str_crt = base64_decode($str_crt);
|
|
464
|
}
|
|
465
|
|
|
466
|
$inf_crt = openssl_x509_parse($str_crt);
|
|
467
|
$components = $inf_crt['subject'];
|
|
468
|
|
|
469
|
if (empty($components) || !is_array($components)) {
|
|
470
|
return "unknown";
|
|
471
|
}
|
|
472
|
|
|
473
|
ksort($components);
|
|
474
|
foreach ($components as $a => $v) {
|
|
475
|
if (is_array($v)) {
|
|
476
|
ksort($v);
|
|
477
|
foreach ($v as $w) {
|
|
478
|
$asubject = "{$a}={$w}";
|
|
479
|
$subject = (strlen($subject)) ? "{$asubject}, {$subject}" : $asubject;
|
|
480
|
}
|
|
481
|
} else {
|
|
482
|
$asubject = "{$a}={$v}";
|
|
483
|
$subject = (strlen($subject)) ? "{$asubject}, {$subject}" : $asubject;
|
|
484
|
}
|
|
485
|
}
|
|
486
|
|
|
487
|
return $subject;
|
|
488
|
}
|
|
489
|
|
|
490
|
function cert_get_subject_array($crt) {
|
|
491
|
$str_crt = base64_decode($crt);
|
|
492
|
$inf_crt = openssl_x509_parse($str_crt);
|
|
493
|
$components = $inf_crt['subject'];
|
|
494
|
|
|
495
|
if (!is_array($components)) {
|
|
496
|
return;
|
|
497
|
}
|
|
498
|
|
|
499
|
$subject_array = array();
|
|
500
|
|
|
501
|
foreach ($components as $a => $v) {
|
|
502
|
$subject_array[] = array('a' => $a, 'v' => $v);
|
|
503
|
}
|
|
504
|
|
|
505
|
return $subject_array;
|
|
506
|
}
|
|
507
|
|
|
508
|
function cert_get_subject_hash($crt) {
|
|
509
|
$str_crt = base64_decode($crt);
|
|
510
|
$inf_crt = openssl_x509_parse($str_crt);
|
|
511
|
return $inf_crt['subject'];
|
|
512
|
}
|
|
513
|
|
|
514
|
function cert_get_sans($str_crt, $decode = true) {
|
|
515
|
if ($decode) {
|
|
516
|
$str_crt = base64_decode($str_crt);
|
|
517
|
}
|
|
518
|
$sans = array();
|
|
519
|
$crt_details = openssl_x509_parse($str_crt);
|
|
520
|
if (!empty($crt_details['extensions']['subjectAltName'])) {
|
|
521
|
$sans = explode(',', $crt_details['extensions']['subjectAltName']);
|
|
522
|
}
|
|
523
|
return $sans;
|
|
524
|
}
|
|
525
|
|
|
526
|
function cert_get_issuer($str_crt, $decode = true) {
|
|
527
|
|
|
528
|
if ($decode) {
|
|
529
|
$str_crt = base64_decode($str_crt);
|
|
530
|
}
|
|
531
|
|
|
532
|
$inf_crt = openssl_x509_parse($str_crt);
|
|
533
|
$components = $inf_crt['issuer'];
|
|
534
|
|
|
535
|
if (empty($components) || !is_array($components)) {
|
|
536
|
return "unknown";
|
|
537
|
}
|
|
538
|
|
|
539
|
ksort($components);
|
|
540
|
foreach ($components as $a => $v) {
|
|
541
|
if (is_array($v)) {
|
|
542
|
ksort($v);
|
|
543
|
foreach ($v as $w) {
|
|
544
|
$aissuer = "{$a}={$w}";
|
|
545
|
$issuer = (strlen($issuer)) ? "{$aissuer}, {$issuer}" : $aissuer;
|
|
546
|
}
|
|
547
|
} else {
|
|
548
|
$aissuer = "{$a}={$v}";
|
|
549
|
$issuer = (strlen($issuer)) ? "{$aissuer}, {$issuer}" : $aissuer;
|
|
550
|
}
|
|
551
|
}
|
|
552
|
|
|
553
|
return $issuer;
|
|
554
|
}
|
|
555
|
|
|
556
|
/* Works for both RSA and ECC (crt) and key (prv) */
|
|
557
|
function cert_get_publickey($str_crt, $decode = true, $type = "crt") {
|
|
558
|
if ($decode) {
|
|
559
|
$str_crt = base64_decode($str_crt);
|
|
560
|
}
|
|
561
|
switch ($type) {
|
|
562
|
case 'prv':
|
|
563
|
exec("echo \"{$str_crt}\" | openssl pkey -pubout", $out);
|
|
564
|
break;
|
|
565
|
case 'crt':
|
|
566
|
exec("echo \"{$str_crt}\" | openssl x509 -inform pem -noout -pubkey", $out);
|
|
567
|
break;
|
|
568
|
case 'csr':
|
|
569
|
exec("echo \"{$str_crt}\" | openssl req -inform pem -noout -pubkey", $out);
|
|
570
|
break;
|
|
571
|
default:
|
|
572
|
$out = array();
|
|
573
|
break;
|
|
574
|
}
|
|
575
|
return implode("\n", $out);
|
|
576
|
}
|
|
577
|
|
|
578
|
function cert_get_purpose($str_crt, $decode = true) {
|
|
579
|
$extended_oids = array(
|
|
580
|
"1.3.6.1.5.5.8.2.2" => "IP Security IKE Intermediate",
|
|
581
|
);
|
|
582
|
if ($decode) {
|
|
583
|
$str_crt = base64_decode($str_crt);
|
|
584
|
}
|
|
585
|
$crt_details = openssl_x509_parse($str_crt);
|
|
586
|
$purpose = array();
|
|
587
|
if (!empty($crt_details['extensions']['keyUsage'])) {
|
|
588
|
$purpose['ku'] = explode(',', $crt_details['extensions']['keyUsage']);
|
|
589
|
foreach ($purpose['ku'] as & $ku) {
|
|
590
|
$ku = trim($ku);
|
|
591
|
if (array_key_exists($ku, $extended_oids)) {
|
|
592
|
$ku = $extended_oids[$ku];
|
|
593
|
}
|
|
594
|
}
|
|
595
|
} else {
|
|
596
|
$purpose['ku'] = array();
|
|
597
|
}
|
|
598
|
if (!empty($crt_details['extensions']['extendedKeyUsage'])) {
|
|
599
|
$purpose['eku'] = explode(',', $crt_details['extensions']['extendedKeyUsage']);
|
|
600
|
foreach ($purpose['eku'] as & $eku) {
|
|
601
|
$eku = trim($eku);
|
|
602
|
if (array_key_exists($eku, $extended_oids)) {
|
|
603
|
$eku = $extended_oids[$eku];
|
|
604
|
}
|
|
605
|
}
|
|
606
|
} else {
|
|
607
|
$purpose['eku'] = array();
|
|
608
|
}
|
|
609
|
$purpose['ca'] = (stristr($crt_details['extensions']['basicConstraints'], 'CA:TRUE') === false) ? 'No': 'Yes';
|
|
610
|
$purpose['server'] = (in_array('TLS Web Server Authentication', $purpose['eku'])) ? 'Yes': 'No';
|
|
611
|
|
|
612
|
return $purpose;
|
|
613
|
}
|
|
614
|
|
|
615
|
function cert_get_dates($str_crt, $decode = true) {
|
|
616
|
if ($decode) {
|
|
617
|
$str_crt = base64_decode($str_crt);
|
|
618
|
}
|
|
619
|
$crt_details = openssl_x509_parse($str_crt);
|
|
620
|
if ($crt_details['validFrom_time_t'] > 0) {
|
|
621
|
$start = date('r', $crt_details['validFrom_time_t']);
|
|
622
|
}
|
|
623
|
if ($crt_details['validTo_time_t'] > 0) {
|
|
624
|
$end = date('r', $crt_details['validTo_time_t']);
|
|
625
|
}
|
|
626
|
return array($start, $end);
|
|
627
|
}
|
|
628
|
|
|
629
|
function cert_get_serial($str_crt, $decode = true) {
|
|
630
|
if ($decode) {
|
|
631
|
$str_crt = base64_decode($str_crt);
|
|
632
|
}
|
|
633
|
$crt_details = openssl_x509_parse($str_crt);
|
|
634
|
if (isset($crt_details['serialNumber']) && !empty($crt_details['serialNumber'])) {
|
|
635
|
return $crt_details['serialNumber'];
|
|
636
|
} else {
|
|
637
|
return NULL;
|
|
638
|
}
|
|
639
|
}
|
|
640
|
|
|
641
|
function is_openvpn_server_ca($caref) {
|
|
642
|
global $config;
|
|
643
|
if (!is_array($config['openvpn']['openvpn-server'])) {
|
|
644
|
return;
|
|
645
|
}
|
|
646
|
foreach ($config['openvpn']['openvpn-server'] as $ovpns) {
|
|
647
|
if ($ovpns['caref'] == $caref) {
|
|
648
|
return true;
|
|
649
|
}
|
|
650
|
}
|
|
651
|
return false;
|
|
652
|
}
|
|
653
|
|
|
654
|
function is_openvpn_client_ca($caref) {
|
|
655
|
global $config;
|
|
656
|
if (!is_array($config['openvpn']['openvpn-client'])) {
|
|
657
|
return;
|
|
658
|
}
|
|
659
|
foreach ($config['openvpn']['openvpn-client'] as $ovpnc) {
|
|
660
|
if ($ovpnc['caref'] == $caref) {
|
|
661
|
return true;
|
|
662
|
}
|
|
663
|
}
|
|
664
|
return false;
|
|
665
|
}
|
|
666
|
|
|
667
|
function is_ipsec_peer_ca($caref) {
|
|
668
|
global $config;
|
|
669
|
if (!is_array($config['ipsec']['phase1'])) {
|
|
670
|
return;
|
|
671
|
}
|
|
672
|
foreach ($config['ipsec']['phase1'] as $ipsec) {
|
|
673
|
if ($ipsec['caref'] == $caref) {
|
|
674
|
return true;
|
|
675
|
}
|
|
676
|
}
|
|
677
|
return false;
|
|
678
|
}
|
|
679
|
|
|
680
|
function is_ldap_peer_ca($caref) {
|
|
681
|
global $config;
|
|
682
|
if (!is_array($config['system']['authserver'])) {
|
|
683
|
return;
|
|
684
|
}
|
|
685
|
foreach ($config['system']['authserver'] as $authserver) {
|
|
686
|
if ($authserver['ldap_caref'] == $caref) {
|
|
687
|
return true;
|
|
688
|
}
|
|
689
|
}
|
|
690
|
return false;
|
|
691
|
}
|
|
692
|
|
|
693
|
function ca_in_use($caref) {
|
|
694
|
return (is_openvpn_server_ca($caref) ||
|
|
695
|
is_openvpn_client_ca($caref) ||
|
|
696
|
is_ipsec_peer_ca($caref) ||
|
|
697
|
is_ldap_peer_ca($caref));
|
|
698
|
}
|
|
699
|
|
|
700
|
function is_user_cert($certref) {
|
|
701
|
global $config;
|
|
702
|
if (!is_array($config['system']['user'])) {
|
|
703
|
return;
|
|
704
|
}
|
|
705
|
foreach ($config['system']['user'] as $user) {
|
|
706
|
if (!is_array($user['cert'])) {
|
|
707
|
continue;
|
|
708
|
}
|
|
709
|
foreach ($user['cert'] as $cert) {
|
|
710
|
if ($certref == $cert) {
|
|
711
|
return true;
|
|
712
|
}
|
|
713
|
}
|
|
714
|
}
|
|
715
|
return false;
|
|
716
|
}
|
|
717
|
|
|
718
|
function is_openvpn_server_cert($certref) {
|
|
719
|
global $config;
|
|
720
|
if (!is_array($config['openvpn']['openvpn-server'])) {
|
|
721
|
return;
|
|
722
|
}
|
|
723
|
foreach ($config['openvpn']['openvpn-server'] as $ovpns) {
|
|
724
|
if ($ovpns['certref'] == $certref) {
|
|
725
|
return true;
|
|
726
|
}
|
|
727
|
}
|
|
728
|
return false;
|
|
729
|
}
|
|
730
|
|
|
731
|
function is_openvpn_client_cert($certref) {
|
|
732
|
global $config;
|
|
733
|
if (!is_array($config['openvpn']['openvpn-client'])) {
|
|
734
|
return;
|
|
735
|
}
|
|
736
|
foreach ($config['openvpn']['openvpn-client'] as $ovpnc) {
|
|
737
|
if ($ovpnc['certref'] == $certref) {
|
|
738
|
return true;
|
|
739
|
}
|
|
740
|
}
|
|
741
|
return false;
|
|
742
|
}
|
|
743
|
|
|
744
|
function is_ipsec_cert($certref) {
|
|
745
|
global $config;
|
|
746
|
if (!is_array($config['ipsec']['phase1'])) {
|
|
747
|
return;
|
|
748
|
}
|
|
749
|
foreach ($config['ipsec']['phase1'] as $ipsec) {
|
|
750
|
if ($ipsec['certref'] == $certref) {
|
|
751
|
return true;
|
|
752
|
}
|
|
753
|
}
|
|
754
|
return false;
|
|
755
|
}
|
|
756
|
|
|
757
|
function is_webgui_cert($certref) {
|
|
758
|
global $config;
|
|
759
|
if (($config['system']['webgui']['ssl-certref'] == $certref) &&
|
|
760
|
($config['system']['webgui']['protocol'] != "http")) {
|
|
761
|
return true;
|
|
762
|
}
|
|
763
|
}
|
|
764
|
|
|
765
|
function is_package_cert($certref) {
|
|
766
|
$pluginparams = array();
|
|
767
|
$pluginparams['type'] = 'certificates';
|
|
768
|
$pluginparams['event'] = 'used_certificates';
|
|
769
|
|
|
770
|
$certificates_used_by_packages = pkg_call_plugins('plugin_certificates', $pluginparams);
|
|
771
|
|
|
772
|
/* Check if any package is using certificate */
|
|
773
|
foreach ($certificates_used_by_packages as $name => $package) {
|
|
774
|
if (is_array($package['certificatelist'][$certref]) &&
|
|
775
|
isset($package['certificatelist'][$certref]) > 0) {
|
|
776
|
return true;
|
|
777
|
}
|
|
778
|
}
|
|
779
|
}
|
|
780
|
|
|
781
|
function is_captiveportal_cert($certref) {
|
|
782
|
global $config;
|
|
783
|
if (!is_array($config['captiveportal'])) {
|
|
784
|
return;
|
|
785
|
}
|
|
786
|
foreach ($config['captiveportal'] as $portal) {
|
|
787
|
if (isset($portal['enable']) && isset($portal['httpslogin']) && ($portal['certref'] == $certref)) {
|
|
788
|
return true;
|
|
789
|
}
|
|
790
|
}
|
|
791
|
return false;
|
|
792
|
}
|
|
793
|
|
|
794
|
function cert_in_use($certref) {
|
|
795
|
|
|
796
|
return (is_webgui_cert($certref) ||
|
|
797
|
is_user_cert($certref) ||
|
|
798
|
is_openvpn_server_cert($certref) ||
|
|
799
|
is_openvpn_client_cert($certref) ||
|
|
800
|
is_ipsec_cert($certref) ||
|
|
801
|
is_captiveportal_cert($certref) ||
|
|
802
|
is_package_cert($certref));
|
|
803
|
}
|
|
804
|
|
|
805
|
function cert_usedby_description($refid, $certificates_used_by_packages) {
|
|
806
|
$result = "";
|
|
807
|
if (is_array($certificates_used_by_packages)) {
|
|
808
|
foreach ($certificates_used_by_packages as $name => $package) {
|
|
809
|
if (isset($package['certificatelist'][$refid])) {
|
|
810
|
$hint = "" ;
|
|
811
|
if (is_array($package['certificatelist'][$refid])) {
|
|
812
|
foreach ($package['certificatelist'][$refid] as $cert_used) {
|
|
813
|
$hint = $hint . $cert_used['usedby']."\n";
|
|
814
|
}
|
|
815
|
}
|
|
816
|
$count = count($package['certificatelist'][$refid]);
|
|
817
|
$result .= "<div title='".htmlspecialchars($hint)."'>";
|
|
818
|
$result .= htmlspecialchars($package['pkgname'])." ($count)<br />";
|
|
819
|
$result .= "</div>";
|
|
820
|
}
|
|
821
|
}
|
|
822
|
}
|
|
823
|
return $result;
|
|
824
|
}
|
|
825
|
|
|
826
|
function crl_create(& $crl, $caref, $name, $serial = 0, $lifetime = 9999) {
|
|
827
|
global $config;
|
|
828
|
$ca =& lookup_ca($caref);
|
|
829
|
if (!$ca) {
|
|
830
|
return false;
|
|
831
|
}
|
|
832
|
$crl['descr'] = $name;
|
|
833
|
$crl['caref'] = $caref;
|
|
834
|
$crl['serial'] = $serial;
|
|
835
|
$crl['lifetime'] = $lifetime;
|
|
836
|
$crl['cert'] = array();
|
|
837
|
$crl_res = crl_update($crl);
|
|
838
|
$config['crl'][] = $crl;
|
|
839
|
return $crl_res;
|
|
840
|
}
|
|
841
|
|
|
842
|
function crl_update(& $crl) {
|
|
843
|
global $config;
|
|
844
|
$ca =& lookup_ca($crl['caref']);
|
|
845
|
if (!$ca) {
|
|
846
|
return false;
|
|
847
|
}
|
|
848
|
// If we have text but no certs, it was imported and cannot be updated.
|
|
849
|
if (($crl["method"] != "internal") && (!empty($crl['text']) && empty($crl['cert']))) {
|
|
850
|
return false;
|
|
851
|
}
|
|
852
|
$crl['serial']++;
|
|
853
|
$ca_str_crt = base64_decode($ca['crt']);
|
|
854
|
$ca_str_key = base64_decode($ca['prv']);
|
|
855
|
$crl_res = openssl_crl_new($ca_str_crt, $crl['serial'], $crl['lifetime']);
|
|
856
|
if (is_array($crl['cert']) && (count($crl['cert']) > 0)) {
|
|
857
|
foreach ($crl['cert'] as $cert) {
|
|
858
|
openssl_crl_revoke_cert($crl_res, base64_decode($cert["crt"]), $cert["revoke_time"], $cert["reason"]);
|
|
859
|
}
|
|
860
|
}
|
|
861
|
openssl_crl_export($crl_res, $crl_text, $ca_str_key);
|
|
862
|
$crl['text'] = base64_encode($crl_text);
|
|
863
|
return $crl_res;
|
|
864
|
}
|
|
865
|
|
|
866
|
function cert_revoke($cert, & $crl, $reason = OCSP_REVOKED_STATUS_UNSPECIFIED) {
|
|
867
|
global $config;
|
|
868
|
if (is_cert_revoked($cert, $crl['refid'])) {
|
|
869
|
return true;
|
|
870
|
}
|
|
871
|
// If we have text but no certs, it was imported and cannot be updated.
|
|
872
|
if (!is_crl_internal($crl)) {
|
|
873
|
return false;
|
|
874
|
}
|
|
875
|
$cert["reason"] = $reason;
|
|
876
|
$cert["revoke_time"] = time();
|
|
877
|
$crl["cert"][] = $cert;
|
|
878
|
crl_update($crl);
|
|
879
|
return true;
|
|
880
|
}
|
|
881
|
|
|
882
|
function cert_unrevoke($cert, & $crl) {
|
|
883
|
global $config;
|
|
884
|
if (!is_crl_internal($crl)) {
|
|
885
|
return false;
|
|
886
|
}
|
|
887
|
foreach ($crl['cert'] as $id => $rcert) {
|
|
888
|
if (($rcert['refid'] == $cert['refid']) || ($rcert['descr'] == $cert['descr'])) {
|
|
889
|
unset($crl['cert'][$id]);
|
|
890
|
if (count($crl['cert']) == 0) {
|
|
891
|
// Protect against accidentally switching the type to imported, for older CRLs
|
|
892
|
if (!isset($crl['method'])) {
|
|
893
|
$crl['method'] = "internal";
|
|
894
|
}
|
|
895
|
crl_update($crl);
|
|
896
|
} else {
|
|
897
|
crl_update($crl);
|
|
898
|
}
|
|
899
|
return true;
|
|
900
|
}
|
|
901
|
}
|
|
902
|
return false;
|
|
903
|
}
|
|
904
|
|
|
905
|
/* Compare two certificates to see if they match. */
|
|
906
|
function cert_compare($cert1, $cert2) {
|
|
907
|
/* Ensure two certs are identical by first checking that their issuers match, then
|
|
908
|
subjects, then serial numbers, and finally the moduli. Anything less strict
|
|
909
|
could accidentally count two similar, but different, certificates as
|
|
910
|
being identical. */
|
|
911
|
$c1 = base64_decode($cert1['crt']);
|
|
912
|
$c2 = base64_decode($cert2['crt']);
|
|
913
|
if ((cert_get_issuer($c1, false) == cert_get_issuer($c2, false)) &&
|
|
914
|
(cert_get_subject($c1, false) == cert_get_subject($c2, false)) &&
|
|
915
|
(cert_get_serial($c1, false) == cert_get_serial($c2, false)) &&
|
|
916
|
(cert_get_publickey($c1, false) == cert_get_publickey($c2, false))) {
|
|
917
|
return true;
|
|
918
|
}
|
|
919
|
return false;
|
|
920
|
}
|
|
921
|
|
|
922
|
function is_cert_revoked($cert, $crlref = "") {
|
|
923
|
global $config;
|
|
924
|
if (!is_array($config['crl'])) {
|
|
925
|
return false;
|
|
926
|
}
|
|
927
|
|
|
928
|
if (!empty($crlref)) {
|
|
929
|
$crl = lookup_crl($crlref);
|
|
930
|
if (!is_array($crl['cert'])) {
|
|
931
|
return false;
|
|
932
|
}
|
|
933
|
foreach ($crl['cert'] as $rcert) {
|
|
934
|
if (cert_compare($rcert, $cert)) {
|
|
935
|
return true;
|
|
936
|
}
|
|
937
|
}
|
|
938
|
} else {
|
|
939
|
foreach ($config['crl'] as $crl) {
|
|
940
|
if (!is_array($crl['cert'])) {
|
|
941
|
continue;
|
|
942
|
}
|
|
943
|
foreach ($crl['cert'] as $rcert) {
|
|
944
|
if (cert_compare($rcert, $cert)) {
|
|
945
|
return true;
|
|
946
|
}
|
|
947
|
}
|
|
948
|
}
|
|
949
|
}
|
|
950
|
return false;
|
|
951
|
}
|
|
952
|
|
|
953
|
function is_openvpn_server_crl($crlref) {
|
|
954
|
global $config;
|
|
955
|
if (!is_array($config['openvpn']['openvpn-server'])) {
|
|
956
|
return;
|
|
957
|
}
|
|
958
|
foreach ($config['openvpn']['openvpn-server'] as $ovpns) {
|
|
959
|
if (!empty($ovpns['crlref']) && ($ovpns['crlref'] == $crlref)) {
|
|
960
|
return true;
|
|
961
|
}
|
|
962
|
}
|
|
963
|
return false;
|
|
964
|
}
|
|
965
|
|
|
966
|
// Keep this general to allow for future expansion. See cert_in_use() above.
|
|
967
|
function crl_in_use($crlref) {
|
|
968
|
return (is_openvpn_server_crl($crlref));
|
|
969
|
}
|
|
970
|
|
|
971
|
function is_crl_internal($crl) {
|
|
972
|
return (!(!empty($crl['text']) && empty($crl['cert'])) || ($crl["method"] == "internal"));
|
|
973
|
}
|
|
974
|
|
|
975
|
function cert_get_cn($crt, $isref = false) {
|
|
976
|
/* If this is a certref, not an actual cert, look up the cert first */
|
|
977
|
if ($isref) {
|
|
978
|
$cert = lookup_cert($crt);
|
|
979
|
/* If it's not a valid cert, bail. */
|
|
980
|
if (!(is_array($cert) && !empty($cert['crt']))) {
|
|
981
|
return "";
|
|
982
|
}
|
|
983
|
$cert = $cert['crt'];
|
|
984
|
} else {
|
|
985
|
$cert = $crt;
|
|
986
|
}
|
|
987
|
$sub = cert_get_subject_array($cert);
|
|
988
|
if (is_array($sub)) {
|
|
989
|
foreach ($sub as $s) {
|
|
990
|
if (strtoupper($s['a']) == "CN") {
|
|
991
|
return $s['v'];
|
|
992
|
}
|
|
993
|
}
|
|
994
|
}
|
|
995
|
return "";
|
|
996
|
}
|
|
997
|
|
|
998
|
function cert_escape_x509_chars($str, $reverse = false) {
|
|
999
|
/* Characters which need escaped when present in x.509 fields.
|
|
1000
|
* See https://www.ietf.org/rfc/rfc4514.txt
|
|
1001
|
*
|
|
1002
|
* The backslash (\) must be listed first in these arrays!
|
|
1003
|
*/
|
|
1004
|
$cert_directory_string_special_chars = array('\\', '"', '#', '+', ',', ';', '<', '=', '>');
|
|
1005
|
$cert_directory_string_special_chars_esc = array('\\\\', '\"', '\#', '\+', '\,', '\;', '\<', '\=', '\>');
|
|
1006
|
if ($reverse) {
|
|
1007
|
return str_replace($cert_directory_string_special_chars_esc, $cert_directory_string_special_chars, $str);
|
|
1008
|
} else {
|
|
1009
|
/* First unescape and then escape again, to prevent possible double escaping. */
|
|
1010
|
return str_replace($cert_directory_string_special_chars, $cert_directory_string_special_chars_esc, cert_escape_x509_chars($str, true));
|
|
1011
|
}
|
|
1012
|
}
|
|
1013
|
|
|
1014
|
?>
|