-/* ocsp_cl.c */
-/* Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL
- * project. */
-
-/* History:
- This file was transfered to Richard Levitte from CertCo by Kathy
- Weinhold in mid-spring 2000 to be included in OpenSSL or released
- as a patch kit. */
-
-/* ====================================================================
- * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
+/*
+ * Copyright 2001-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
-#include <cryptlib.h>
+#include <time.h>
+#include "internal/cryptlib.h"
#include <openssl/objects.h>
-#include <openssl/rand.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/x509v3.h>
#include <openssl/ocsp.h>
+#include "ocsp_lcl.h"
-/* Utility functions related to sending OCSP requests and extracting
- * relevant information from the response.
+/*
+ * Utility functions related to sending OCSP requests and extracting relevant
+ * information from the response.
*/
-/* Add an OCSP_CERTID to an OCSP request. Return new OCSP_ONEREQ
- * pointer: useful if we want to add extensions.
+/*
+ * Add an OCSP_CERTID to an OCSP request. Return new OCSP_ONEREQ pointer:
+ * useful if we want to add extensions.
*/
OCSP_ONEREQ *OCSP_request_add0_id(OCSP_REQUEST *req, OCSP_CERTID *cid)
- {
- OCSP_ONEREQ *one = NULL;
-
- if (!(one = OCSP_ONEREQ_new())) goto err;
- if (one->reqCert) OCSP_CERTID_free(one->reqCert);
- one->reqCert = cid;
- if (req &&
- !sk_OCSP_ONEREQ_push(req->tbsRequest->requestList, one))
- goto err;
- return one;
-err:
- OCSP_ONEREQ_free(one);
- return NULL;
- }
+{
+ OCSP_ONEREQ *one = NULL;
+
+ if ((one = OCSP_ONEREQ_new()) == NULL)
+ return NULL;
+ OCSP_CERTID_free(one->reqCert);
+ one->reqCert = cid;
+ if (req && !sk_OCSP_ONEREQ_push(req->tbsRequest.requestList, one))
+ goto err;
+ return one;
+ err:
+ OCSP_ONEREQ_free(one);
+ return NULL;
+}
/* Set requestorName from an X509_NAME structure */
int OCSP_request_set1_name(OCSP_REQUEST *req, X509_NAME *nm)
- {
- GENERAL_NAME *gen;
- gen = GENERAL_NAME_new();
- if (!X509_NAME_set(&gen->d.directoryName, nm))
- {
- GENERAL_NAME_free(gen);
- return 0;
- }
- gen->type = GEN_DIRNAME;
- if (req->tbsRequest->requestorName)
- GENERAL_NAME_free(req->tbsRequest->requestorName);
- req->tbsRequest->requestorName = gen;
- return 1;
- }
-
+{
+ GENERAL_NAME *gen;
+
+ gen = GENERAL_NAME_new();
+ if (gen == NULL)
+ return 0;
+ if (!X509_NAME_set(&gen->d.directoryName, nm)) {
+ GENERAL_NAME_free(gen);
+ return 0;
+ }
+ gen->type = GEN_DIRNAME;
+ GENERAL_NAME_free(req->tbsRequest.requestorName);
+ req->tbsRequest.requestorName = gen;
+ return 1;
+}
/* Add a certificate to an OCSP request */
int OCSP_request_add1_cert(OCSP_REQUEST *req, X509 *cert)
- {
- OCSP_SIGNATURE *sig;
- if (!req->optionalSignature)
- req->optionalSignature = OCSP_SIGNATURE_new();
- sig = req->optionalSignature;
- if (!sig) return 0;
- if (!cert) return 1;
- if (!sig->certs && !(sig->certs = sk_X509_new_null()))
- return 0;
-
- if(!sk_X509_push(sig->certs, cert)) return 0;
- CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
- return 1;
- }
-
-/* Sign an OCSP request set the requestorName to the subjec
- * name of an optional signers certificate and include one
- * or more optional certificates in the request. Behaves
- * like PKCS7_sign().
+{
+ OCSP_SIGNATURE *sig;
+ if (req->optionalSignature == NULL)
+ req->optionalSignature = OCSP_SIGNATURE_new();
+ sig = req->optionalSignature;
+ if (sig == NULL)
+ return 0;
+ if (cert == NULL)
+ return 1;
+ if (sig->certs == NULL
+ && (sig->certs = sk_X509_new_null()) == NULL)
+ return 0;
+
+ if (!sk_X509_push(sig->certs, cert))
+ return 0;
+ X509_up_ref(cert);
+ return 1;
+}
+
+/*
+ * Sign an OCSP request set the requestorName to the subject name of an
+ * optional signers certificate and include one or more optional certificates
+ * in the request. Behaves like PKCS7_sign().
*/
-int OCSP_request_sign(OCSP_REQUEST *req,
- X509 *signer,
- EVP_PKEY *key,
- const EVP_MD *dgst,
- STACK_OF(X509) *certs,
- unsigned long flags)
- {
- int i;
- OCSP_SIGNATURE *sig;
- X509 *x;
-
- if (signer &&
- !OCSP_request_set1_name(req, X509_get_subject_name(signer)))
- goto err;
-
- if (!(req->optionalSignature = sig = OCSP_SIGNATURE_new())) goto err;
- if (!dgst) dgst = EVP_sha1();
- if (key && !OCSP_REQUEST_sign(req, key, dgst)) goto err;
- if (!(flags & OCSP_NOCERTS))
- {
- if (!OCSP_request_add1_cert(req, signer)) goto err;
- for (i = 0; i < sk_X509_num(certs); i++)
- {
- x = sk_X509_value(certs, i);
- if (!OCSP_request_add1_cert(req, x)) goto err;
- }
- }
- return 1;
-err:
- OCSP_SIGNATURE_free(req->optionalSignature);
- req->optionalSignature = NULL;
- return 0;
- }
+int OCSP_request_sign(OCSP_REQUEST *req,
+ X509 *signer,
+ EVP_PKEY *key,
+ const EVP_MD *dgst,
+ STACK_OF(X509) *certs, unsigned long flags)
+{
+ int i;
+ X509 *x;
+
+ if (!OCSP_request_set1_name(req, X509_get_subject_name(signer)))
+ goto err;
+
+ if ((req->optionalSignature = OCSP_SIGNATURE_new()) == NULL)
+ goto err;
+ if (key) {
+ if (!X509_check_private_key(signer, key)) {
+ OCSPerr(OCSP_F_OCSP_REQUEST_SIGN,
+ OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
+ goto err;
+ }
+ if (!OCSP_REQUEST_sign(req, key, dgst))
+ goto err;
+ }
+
+ if (!(flags & OCSP_NOCERTS)) {
+ if (!OCSP_request_add1_cert(req, signer))
+ goto err;
+ for (i = 0; i < sk_X509_num(certs); i++) {
+ x = sk_X509_value(certs, i);
+ if (!OCSP_request_add1_cert(req, x))
+ goto err;
+ }
+ }
+
+ return 1;
+ err:
+ OCSP_SIGNATURE_free(req->optionalSignature);
+ req->optionalSignature = NULL;
+ return 0;
+}
/* Get response status */
int OCSP_response_status(OCSP_RESPONSE *resp)
- {
- return ASN1_ENUMERATED_get(resp->responseStatus);
- }
+{
+ return ASN1_ENUMERATED_get(resp->responseStatus);
+}
-/* Extract basic response from OCSP_RESPONSE or NULL if
- * no basic response present.
+/*
+ * Extract basic response from OCSP_RESPONSE or NULL if no basic response
+ * present.
*/
-
OCSP_BASICRESP *OCSP_response_get1_basic(OCSP_RESPONSE *resp)
- {
- OCSP_RESPBYTES *rb;
- rb = resp->responseBytes;
- if (!rb)
- {
- OCSPerr(OCSP_F_OCSP_RESPONSE_GET1_BASIC, OCSP_R_NO_RESPONSE_DATA);
- return NULL;
- }
- if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic)
- {
- OCSPerr(OCSP_F_OCSP_RESPONSE_GET1_BASIC, OCSP_R_NOT_BASIC_RESPONSE);
- return NULL;
- }
-
- return ASN1_item_unpack(rb->response, &OCSP_BASICRESP_it);
- }
-
-/* Return number of OCSP_SINGLERESP reponses present in
- * a basic response.
+{
+ OCSP_RESPBYTES *rb;
+ rb = resp->responseBytes;
+ if (!rb) {
+ OCSPerr(OCSP_F_OCSP_RESPONSE_GET1_BASIC, OCSP_R_NO_RESPONSE_DATA);
+ return NULL;
+ }
+ if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic) {
+ OCSPerr(OCSP_F_OCSP_RESPONSE_GET1_BASIC, OCSP_R_NOT_BASIC_RESPONSE);
+ return NULL;
+ }
+
+ return ASN1_item_unpack(rb->response, ASN1_ITEM_rptr(OCSP_BASICRESP));
+}
+
+ASN1_OCTET_STRING *OCSP_resp_get0_signature(OCSP_BASICRESP *bs)
+{
+ return bs->signature;
+}
+
+/*
+ * Return number of OCSP_SINGLERESP responses present in a basic response.
*/
int OCSP_resp_count(OCSP_BASICRESP *bs)
- {
- if (!bs) return -1;
- return sk_OCSP_SINGLERESP_num(bs->tbsResponseData->responses);
- }
+{
+ if (!bs)
+ return -1;
+ return sk_OCSP_SINGLERESP_num(bs->tbsResponseData.responses);
+}
/* Extract an OCSP_SINGLERESP response with a given index */
OCSP_SINGLERESP *OCSP_resp_get0(OCSP_BASICRESP *bs, int idx)
- {
- if (!bs) return NULL;
- return sk_OCSP_SINGLERESP_value(bs->tbsResponseData->responses, idx);
- }
+{
+ if (!bs)
+ return NULL;
+ return sk_OCSP_SINGLERESP_value(bs->tbsResponseData.responses, idx);
+}
+
+ASN1_GENERALIZEDTIME *OCSP_resp_get0_produced_at(OCSP_BASICRESP* bs)
+{
+ if (!bs)
+ return NULL;
+ return bs->tbsResponseData.producedAt;
+}
+
+const STACK_OF(X509) *OCSP_resp_get0_certs(const OCSP_BASICRESP *bs)
+{
+ return bs->certs;
+}
+
+int OCSP_resp_get0_id(const OCSP_BASICRESP *bs,
+ const ASN1_OCTET_STRING **pid,
+ const X509_NAME **pname)
+
+{
+ const OCSP_RESPID *rid = &bs->tbsResponseData.responderId;
+ if (rid->type == V_OCSP_RESPID_NAME) {
+ *pname = rid->value.byName;
+ *pid = NULL;
+ } else if (rid->type == V_OCSP_RESPID_KEY) {
+ *pid = rid->value.byKey;
+ *pname = NULL;
+ } else {
+ return 0;
+ }
+ return 1;
+}
/* Look single response matching a given certificate ID */
int OCSP_resp_find(OCSP_BASICRESP *bs, OCSP_CERTID *id, int last)
- {
- int i;
- STACK_OF(OCSP_SINGLERESP) *sresp;
- OCSP_SINGLERESP *single;
- if (!bs) return -1;
- if (last < 0) last = 0;
- else last++;
- sresp = bs->tbsResponseData->responses;
- for (i = last; i < sk_OCSP_SINGLERESP_num(sresp); i++)
- {
- single = sk_OCSP_SINGLERESP_value(sresp, i);
- if (!OCSP_id_cmp(id, single->certId)) return i;
- }
- return -1;
- }
-
-/* Extract status information from an OCSP_SINGLERESP structure.
- * Note: the revtime and reason values are only set if the
- * certificate status is revoked. Returns numerical value of
- * status.
+{
+ int i;
+ STACK_OF(OCSP_SINGLERESP) *sresp;
+ OCSP_SINGLERESP *single;
+ if (!bs)
+ return -1;
+ if (last < 0)
+ last = 0;
+ else
+ last++;
+ sresp = bs->tbsResponseData.responses;
+ for (i = last; i < sk_OCSP_SINGLERESP_num(sresp); i++) {
+ single = sk_OCSP_SINGLERESP_value(sresp, i);
+ if (!OCSP_id_cmp(id, single->certId))
+ return i;
+ }
+ return -1;
+}
+
+/*
+ * Extract status information from an OCSP_SINGLERESP structure. Note: the
+ * revtime and reason values are only set if the certificate status is
+ * revoked. Returns numerical value of status.
*/
int OCSP_single_get0_status(OCSP_SINGLERESP *single, int *reason,
- ASN1_GENERALIZEDTIME **revtime,
- ASN1_GENERALIZEDTIME **thisupd,
- ASN1_GENERALIZEDTIME **nextupd)
- {
- int ret;
- OCSP_CERTSTATUS *cst = single->certStatus;
- if(!single) return -1;
- ret = cst->type;
- if (ret == V_OCSP_CERTSTATUS_REVOKED)
- {
- OCSP_REVOKEDINFO *rev = cst->value.revoked;
- if (revtime) *revtime = rev->revocationTime;
- if (reason)
- {
- if(rev->revocationReason)
- *reason = ASN1_ENUMERATED_get(rev->revocationReason);
- else *reason = -1;
- }
- }
- if(thisupd) *thisupd = single->thisUpdate;
- if(nextupd) *nextupd = single->nextUpdate;
- return ret;
- }
-
-/* This function combines the previous ones: look a certificate ID and
- * if found extract status information. Return 0 is successful.
+ ASN1_GENERALIZEDTIME **revtime,
+ ASN1_GENERALIZEDTIME **thisupd,
+ ASN1_GENERALIZEDTIME **nextupd)
+{
+ int ret;
+ OCSP_CERTSTATUS *cst;
+ if (!single)
+ return -1;
+ cst = single->certStatus;
+ ret = cst->type;
+ if (ret == V_OCSP_CERTSTATUS_REVOKED) {
+ OCSP_REVOKEDINFO *rev = cst->value.revoked;
+ if (revtime)
+ *revtime = rev->revocationTime;
+ if (reason) {
+ if (rev->revocationReason)
+ *reason = ASN1_ENUMERATED_get(rev->revocationReason);
+ else
+ *reason = -1;
+ }
+ }
+ if (thisupd)
+ *thisupd = single->thisUpdate;
+ if (nextupd)
+ *nextupd = single->nextUpdate;
+ return ret;
+}
+
+/*
+ * This function combines the previous ones: look up a certificate ID and if
+ * found extract status information. Return 0 is successful.
*/
int OCSP_resp_find_status(OCSP_BASICRESP *bs, OCSP_CERTID *id, int *status,
- int *reason,
- ASN1_GENERALIZEDTIME **revtime,
- ASN1_GENERALIZEDTIME **thisupd,
- ASN1_GENERALIZEDTIME **nextupd)
- {
- int i;
- OCSP_SINGLERESP *single;
- i = OCSP_resp_find(bs, id, -1);
- /* Maybe check for multiple responses and give an error? */
- if(i < 0) return 0;
- single = OCSP_resp_get0(bs, i);
- i = OCSP_single_get0_status(single, reason, revtime, thisupd, nextupd);
- if(status) *status = i;
- return 1;
- }
+ int *reason,
+ ASN1_GENERALIZEDTIME **revtime,
+ ASN1_GENERALIZEDTIME **thisupd,
+ ASN1_GENERALIZEDTIME **nextupd)
+{
+ int i;
+ OCSP_SINGLERESP *single;
+ i = OCSP_resp_find(bs, id, -1);
+ /* Maybe check for multiple responses and give an error? */
+ if (i < 0)
+ return 0;
+ single = OCSP_resp_get0(bs, i);
+ i = OCSP_single_get0_status(single, reason, revtime, thisupd, nextupd);
+ if (status)
+ *status = i;
+ return 1;
+}
+
+/*
+ * Check validity of thisUpdate and nextUpdate fields. It is possible that
+ * the request will take a few seconds to process and/or the time wont be
+ * totally accurate. Therefore to avoid rejecting otherwise valid time we
+ * allow the times to be within 'nsec' of the current time. Also to avoid
+ * accepting very old responses without a nextUpdate field an optional maxage
+ * parameter specifies the maximum age the thisUpdate field can be.
+ */
+int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd,
+ ASN1_GENERALIZEDTIME *nextupd, long nsec, long maxsec)
+{
+ int ret = 1;
+ time_t t_now, t_tmp;
+ time(&t_now);
+ /* Check thisUpdate is valid and not more than nsec in the future */
+ if (!ASN1_GENERALIZEDTIME_check(thisupd)) {
+ OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_ERROR_IN_THISUPDATE_FIELD);
+ ret = 0;
+ } else {
+ t_tmp = t_now + nsec;
+ if (X509_cmp_time(thisupd, &t_tmp) > 0) {
+ OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_NOT_YET_VALID);
+ ret = 0;
+ }
+ /*
+ * If maxsec specified check thisUpdate is not more than maxsec in
+ * the past
+ */
+ if (maxsec >= 0) {
+ t_tmp = t_now - maxsec;
+ if (X509_cmp_time(thisupd, &t_tmp) < 0) {
+ OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_TOO_OLD);
+ ret = 0;
+ }
+ }
+ }
+
+ if (!nextupd)
+ return ret;
+
+ /* Check nextUpdate is valid and not more than nsec in the past */
+ if (!ASN1_GENERALIZEDTIME_check(nextupd)) {
+ OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_ERROR_IN_NEXTUPDATE_FIELD);
+ ret = 0;
+ } else {
+ t_tmp = t_now - nsec;
+ if (X509_cmp_time(nextupd, &t_tmp) < 0) {
+ OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_EXPIRED);
+ ret = 0;
+ }
+ }
+
+ /* Also don't allow nextUpdate to precede thisUpdate */
+ if (ASN1_STRING_cmp(nextupd, thisupd) < 0) {
+ OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY,
+ OCSP_R_NEXTUPDATE_BEFORE_THISUPDATE);
+ ret = 0;
+ }
+
+ return ret;
+}
+
+OCSP_CERTID *OCSP_SINGLERESP_get0_id(OCSP_SINGLERESP *single)
+{
+ return single->certId;
+}
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