275 lines
7.5 KiB
C
275 lines
7.5 KiB
C
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/* $OpenBSD: ocsp_srv.c,v 1.10 2017/01/29 17:49:23 beck Exp $ */
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/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
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* project 2001.
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*/
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/* ====================================================================
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* Copyright (c) 1998-2001 The OpenSSL Project. 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
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, 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
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL 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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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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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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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL 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 OpenSSL 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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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include <openssl/err.h>
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#include <openssl/objects.h>
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#include <openssl/ocsp.h>
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#include <openssl/pem.h>
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#include <openssl/x509.h>
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#include <openssl/x509v3.h>
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/* Utility functions related to sending OCSP responses and extracting
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* relevant information from the request.
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*/
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int
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OCSP_request_onereq_count(OCSP_REQUEST *req)
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{
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return sk_OCSP_ONEREQ_num(req->tbsRequest->requestList);
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}
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OCSP_ONEREQ *
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OCSP_request_onereq_get0(OCSP_REQUEST *req, int i)
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{
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return sk_OCSP_ONEREQ_value(req->tbsRequest->requestList, i);
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}
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OCSP_CERTID *
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OCSP_onereq_get0_id(OCSP_ONEREQ *one)
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{
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return one->reqCert;
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}
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int
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OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
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ASN1_OCTET_STRING **pikeyHash, ASN1_INTEGER **pserial, OCSP_CERTID *cid)
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{
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if (!cid)
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return 0;
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if (pmd)
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*pmd = cid->hashAlgorithm->algorithm;
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if (piNameHash)
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*piNameHash = cid->issuerNameHash;
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if (pikeyHash)
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*pikeyHash = cid->issuerKeyHash;
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if (pserial)
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*pserial = cid->serialNumber;
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return 1;
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}
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int
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OCSP_request_is_signed(OCSP_REQUEST *req)
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{
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if (req->optionalSignature)
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return 1;
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return 0;
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}
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/* Create an OCSP response and encode an optional basic response */
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OCSP_RESPONSE *
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OCSP_response_create(int status, OCSP_BASICRESP *bs)
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{
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OCSP_RESPONSE *rsp = NULL;
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if (!(rsp = OCSP_RESPONSE_new()))
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goto err;
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if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status)))
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goto err;
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if (!bs)
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return rsp;
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if (!(rsp->responseBytes = OCSP_RESPBYTES_new()))
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goto err;
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rsp->responseBytes->responseType = OBJ_nid2obj(NID_id_pkix_OCSP_basic);
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if (!ASN1_item_pack(bs, &OCSP_BASICRESP_it,
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&rsp->responseBytes->response))
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goto err;
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return rsp;
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err:
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if (rsp)
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OCSP_RESPONSE_free(rsp);
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return NULL;
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}
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OCSP_SINGLERESP *
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OCSP_basic_add1_status(OCSP_BASICRESP *rsp, OCSP_CERTID *cid, int status,
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int reason, ASN1_TIME *revtime, ASN1_TIME *thisupd, ASN1_TIME *nextupd)
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{
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OCSP_SINGLERESP *single = NULL;
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OCSP_CERTSTATUS *cs;
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OCSP_REVOKEDINFO *ri;
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if (!rsp->tbsResponseData->responses &&
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!(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new_null()))
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goto err;
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if (!(single = OCSP_SINGLERESP_new()))
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goto err;
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if (!ASN1_TIME_to_generalizedtime(thisupd, &single->thisUpdate))
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goto err;
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if (nextupd &&
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!ASN1_TIME_to_generalizedtime(nextupd, &single->nextUpdate))
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goto err;
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OCSP_CERTID_free(single->certId);
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if (!(single->certId = OCSP_CERTID_dup(cid)))
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goto err;
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cs = single->certStatus;
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switch (cs->type = status) {
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case V_OCSP_CERTSTATUS_REVOKED:
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if (!revtime) {
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OCSPerror(OCSP_R_NO_REVOKED_TIME);
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goto err;
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}
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if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new()))
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goto err;
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if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime))
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goto err;
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if (reason != OCSP_REVOKED_STATUS_NOSTATUS) {
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if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
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goto err;
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if (!(ASN1_ENUMERATED_set(ri->revocationReason,
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reason)))
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goto err;
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}
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break;
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case V_OCSP_CERTSTATUS_GOOD:
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cs->value.good = ASN1_NULL_new();
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break;
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case V_OCSP_CERTSTATUS_UNKNOWN:
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cs->value.unknown = ASN1_NULL_new();
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break;
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default:
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goto err;
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}
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if (!(sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses, single)))
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goto err;
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return single;
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err:
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OCSP_SINGLERESP_free(single);
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return NULL;
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}
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/* Add a certificate to an OCSP request */
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int
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OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert)
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{
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if (!resp->certs && !(resp->certs = sk_X509_new_null()))
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return 0;
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if (!sk_X509_push(resp->certs, cert))
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return 0;
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CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
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return 1;
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}
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int
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OCSP_basic_sign(OCSP_BASICRESP *brsp, X509 *signer, EVP_PKEY *key,
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const EVP_MD *dgst, STACK_OF(X509) *certs, unsigned long flags)
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{
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int i;
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OCSP_RESPID *rid;
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if (!X509_check_private_key(signer, key)) {
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OCSPerror(OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
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goto err;
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}
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if (!(flags & OCSP_NOCERTS)) {
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if (!OCSP_basic_add1_cert(brsp, signer))
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goto err;
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for (i = 0; i < sk_X509_num(certs); i++) {
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X509 *tmpcert = sk_X509_value(certs, i);
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if (!OCSP_basic_add1_cert(brsp, tmpcert))
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goto err;
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}
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}
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rid = brsp->tbsResponseData->responderId;
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if (flags & OCSP_RESPID_KEY) {
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unsigned char md[SHA_DIGEST_LENGTH];
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X509_pubkey_digest(signer, EVP_sha1(), md, NULL);
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if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
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goto err;
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if (!(ASN1_OCTET_STRING_set(rid->value.byKey, md,
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SHA_DIGEST_LENGTH)))
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goto err;
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rid->type = V_OCSP_RESPID_KEY;
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} else {
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if (!X509_NAME_set(&rid->value.byName,
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X509_get_subject_name(signer)))
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goto err;
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rid->type = V_OCSP_RESPID_NAME;
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}
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if (!(flags & OCSP_NOTIME) &&
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!ASN1_GENERALIZEDTIME_set(brsp->tbsResponseData->producedAt, time(NULL)))
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goto err;
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/* Right now, I think that not doing double hashing is the right
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thing. -- Richard Levitte */
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if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0))
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goto err;
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return 1;
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err:
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return 0;
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}
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