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diff --git a/src/lib/libcrypto/ocsp/ocsp_cl.c b/src/lib/libcrypto/ocsp/ocsp_cl.c
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1/* ocsp_cl.c */
2/* Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL
3 * project. */
4
5/* History:
6 This file was transfered to Richard Levitte from CertCo by Kathy
7 Weinhold in mid-spring 2000 to be included in OpenSSL or released
8 as a patch kit. */
9
10/* ====================================================================
11 * Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 *
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 *
20 * 2. Redistributions in binary form must reproduce the above copyright
21 * notice, this list of conditions and the following disclaimer in
22 * the documentation and/or other materials provided with the
23 * distribution.
24 *
25 * 3. All advertising materials mentioning features or use of this
26 * software must display the following acknowledgment:
27 * "This product includes software developed by the OpenSSL Project
28 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
29 *
30 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
31 * endorse or promote products derived from this software without
32 * prior written permission. For written permission, please contact
33 * openssl-core@openssl.org.
34 *
35 * 5. Products derived from this software may not be called "OpenSSL"
36 * nor may "OpenSSL" appear in their names without prior written
37 * permission of the OpenSSL Project.
38 *
39 * 6. Redistributions of any form whatsoever must retain the following
40 * acknowledgment:
41 * "This product includes software developed by the OpenSSL Project
42 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
43 *
44 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
45 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
47 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
48 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
49 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
50 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
51 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
52 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
53 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
54 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
55 * OF THE POSSIBILITY OF SUCH DAMAGE.
56 * ====================================================================
57 *
58 * This product includes cryptographic software written by Eric Young
59 * (eay@cryptsoft.com). This product includes software written by Tim
60 * Hudson (tjh@cryptsoft.com).
61 *
62 */
63
64#include <stdio.h>
65#include <time.h>
66#include <cryptlib.h>
67#include <openssl/objects.h>
68#include <openssl/rand.h>
69#include <openssl/x509.h>
70#include <openssl/pem.h>
71#include <openssl/x509v3.h>
72#include <openssl/ocsp.h>
73
74/* Utility functions related to sending OCSP requests and extracting
75 * relevant information from the response.
76 */
77
78/* Add an OCSP_CERTID to an OCSP request. Return new OCSP_ONEREQ
79 * pointer: useful if we want to add extensions.
80 */
81
82OCSP_ONEREQ *OCSP_request_add0_id(OCSP_REQUEST *req, OCSP_CERTID *cid)
83 {
84 OCSP_ONEREQ *one = NULL;
85
86 if (!(one = OCSP_ONEREQ_new())) goto err;
87 if (one->reqCert) OCSP_CERTID_free(one->reqCert);
88 one->reqCert = cid;
89 if (req &&
90 !sk_OCSP_ONEREQ_push(req->tbsRequest->requestList, one))
91 goto err;
92 return one;
93err:
94 OCSP_ONEREQ_free(one);
95 return NULL;
96 }
97
98/* Set requestorName from an X509_NAME structure */
99
100int OCSP_request_set1_name(OCSP_REQUEST *req, X509_NAME *nm)
101 {
102 GENERAL_NAME *gen;
103 gen = GENERAL_NAME_new();
104 if (!X509_NAME_set(&gen->d.directoryName, nm))
105 {
106 GENERAL_NAME_free(gen);
107 return 0;
108 }
109 gen->type = GEN_DIRNAME;
110 if (req->tbsRequest->requestorName)
111 GENERAL_NAME_free(req->tbsRequest->requestorName);
112 req->tbsRequest->requestorName = gen;
113 return 1;
114 }
115
116
117/* Add a certificate to an OCSP request */
118
119int OCSP_request_add1_cert(OCSP_REQUEST *req, X509 *cert)
120 {
121 OCSP_SIGNATURE *sig;
122 if (!req->optionalSignature)
123 req->optionalSignature = OCSP_SIGNATURE_new();
124 sig = req->optionalSignature;
125 if (!sig) return 0;
126 if (!cert) return 1;
127 if (!sig->certs && !(sig->certs = sk_X509_new_null()))
128 return 0;
129
130 if(!sk_X509_push(sig->certs, cert)) return 0;
131 CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
132 return 1;
133 }
134
135/* Sign an OCSP request set the requestorName to the subjec
136 * name of an optional signers certificate and include one
137 * or more optional certificates in the request. Behaves
138 * like PKCS7_sign().
139 */
140
141int OCSP_request_sign(OCSP_REQUEST *req,
142 X509 *signer,
143 EVP_PKEY *key,
144 const EVP_MD *dgst,
145 STACK_OF(X509) *certs,
146 unsigned long flags)
147 {
148 int i;
149 OCSP_SIGNATURE *sig;
150 X509 *x;
151
152 if (!OCSP_request_set1_name(req, X509_get_subject_name(signer)))
153 goto err;
154
155 if (!(req->optionalSignature = sig = OCSP_SIGNATURE_new())) goto err;
156 if (!dgst) dgst = EVP_sha1();
157 if (key)
158 {
159 if (!X509_check_private_key(signer, key))
160 {
161 OCSPerr(OCSP_F_OCSP_REQUEST_SIGN, OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
162 goto err;
163 }
164 if (!OCSP_REQUEST_sign(req, key, dgst)) goto err;
165 }
166
167 if (!(flags & OCSP_NOCERTS))
168 {
169 if(!OCSP_request_add1_cert(req, signer)) goto err;
170 for (i = 0; i < sk_X509_num(certs); i++)
171 {
172 x = sk_X509_value(certs, i);
173 if (!OCSP_request_add1_cert(req, x)) goto err;
174 }
175 }
176
177 return 1;
178err:
179 OCSP_SIGNATURE_free(req->optionalSignature);
180 req->optionalSignature = NULL;
181 return 0;
182 }
183
184/* Get response status */
185
186int OCSP_response_status(OCSP_RESPONSE *resp)
187 {
188 return ASN1_ENUMERATED_get(resp->responseStatus);
189 }
190
191/* Extract basic response from OCSP_RESPONSE or NULL if
192 * no basic response present.
193 */
194
195
196OCSP_BASICRESP *OCSP_response_get1_basic(OCSP_RESPONSE *resp)
197 {
198 OCSP_RESPBYTES *rb;
199 rb = resp->responseBytes;
200 if (!rb)
201 {
202 OCSPerr(OCSP_F_OCSP_RESPONSE_GET1_BASIC, OCSP_R_NO_RESPONSE_DATA);
203 return NULL;
204 }
205 if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic)
206 {
207 OCSPerr(OCSP_F_OCSP_RESPONSE_GET1_BASIC, OCSP_R_NOT_BASIC_RESPONSE);
208 return NULL;
209 }
210
211 return ASN1_item_unpack(rb->response, ASN1_ITEM_rptr(OCSP_BASICRESP));
212 }
213
214/* Return number of OCSP_SINGLERESP reponses present in
215 * a basic response.
216 */
217
218int OCSP_resp_count(OCSP_BASICRESP *bs)
219 {
220 if (!bs) return -1;
221 return sk_OCSP_SINGLERESP_num(bs->tbsResponseData->responses);
222 }
223
224/* Extract an OCSP_SINGLERESP response with a given index */
225
226OCSP_SINGLERESP *OCSP_resp_get0(OCSP_BASICRESP *bs, int idx)
227 {
228 if (!bs) return NULL;
229 return sk_OCSP_SINGLERESP_value(bs->tbsResponseData->responses, idx);
230 }
231
232/* Look single response matching a given certificate ID */
233
234int OCSP_resp_find(OCSP_BASICRESP *bs, OCSP_CERTID *id, int last)
235 {
236 int i;
237 STACK_OF(OCSP_SINGLERESP) *sresp;
238 OCSP_SINGLERESP *single;
239 if (!bs) return -1;
240 if (last < 0) last = 0;
241 else last++;
242 sresp = bs->tbsResponseData->responses;
243 for (i = last; i < sk_OCSP_SINGLERESP_num(sresp); i++)
244 {
245 single = sk_OCSP_SINGLERESP_value(sresp, i);
246 if (!OCSP_id_cmp(id, single->certId)) return i;
247 }
248 return -1;
249 }
250
251/* Extract status information from an OCSP_SINGLERESP structure.
252 * Note: the revtime and reason values are only set if the
253 * certificate status is revoked. Returns numerical value of
254 * status.
255 */
256
257int OCSP_single_get0_status(OCSP_SINGLERESP *single, int *reason,
258 ASN1_GENERALIZEDTIME **revtime,
259 ASN1_GENERALIZEDTIME **thisupd,
260 ASN1_GENERALIZEDTIME **nextupd)
261 {
262 int ret;
263 OCSP_CERTSTATUS *cst;
264 if(!single) return -1;
265 cst = single->certStatus;
266 ret = cst->type;
267 if (ret == V_OCSP_CERTSTATUS_REVOKED)
268 {
269 OCSP_REVOKEDINFO *rev = cst->value.revoked;
270 if (revtime) *revtime = rev->revocationTime;
271 if (reason)
272 {
273 if(rev->revocationReason)
274 *reason = ASN1_ENUMERATED_get(rev->revocationReason);
275 else *reason = -1;
276 }
277 }
278 if(thisupd) *thisupd = single->thisUpdate;
279 if(nextupd) *nextupd = single->nextUpdate;
280 return ret;
281 }
282
283/* This function combines the previous ones: look up a certificate ID and
284 * if found extract status information. Return 0 is successful.
285 */
286
287int OCSP_resp_find_status(OCSP_BASICRESP *bs, OCSP_CERTID *id, int *status,
288 int *reason,
289 ASN1_GENERALIZEDTIME **revtime,
290 ASN1_GENERALIZEDTIME **thisupd,
291 ASN1_GENERALIZEDTIME **nextupd)
292 {
293 int i;
294 OCSP_SINGLERESP *single;
295 i = OCSP_resp_find(bs, id, -1);
296 /* Maybe check for multiple responses and give an error? */
297 if(i < 0) return 0;
298 single = OCSP_resp_get0(bs, i);
299 i = OCSP_single_get0_status(single, reason, revtime, thisupd, nextupd);
300 if(status) *status = i;
301 return 1;
302 }
303
304/* Check validity of thisUpdate and nextUpdate fields. It is possible that the request will
305 * take a few seconds to process and/or the time wont be totally accurate. Therefore to avoid
306 * rejecting otherwise valid time we allow the times to be within 'nsec' of the current time.
307 * Also to avoid accepting very old responses without a nextUpdate field an optional maxage
308 * parameter specifies the maximum age the thisUpdate field can be.
309 */
310
311int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd, ASN1_GENERALIZEDTIME *nextupd, long nsec, long maxsec)
312 {
313 int ret = 1;
314 time_t t_now, t_tmp;
315 time(&t_now);
316 /* Check thisUpdate is valid and not more than nsec in the future */
317 if (!ASN1_GENERALIZEDTIME_check(thisupd))
318 {
319 OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_ERROR_IN_THISUPDATE_FIELD);
320 ret = 0;
321 }
322 else
323 {
324 t_tmp = t_now + nsec;
325 if (X509_cmp_time(thisupd, &t_tmp) > 0)
326 {
327 OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_NOT_YET_VALID);
328 ret = 0;
329 }
330
331 /* If maxsec specified check thisUpdate is not more than maxsec in the past */
332 if (maxsec >= 0)
333 {
334 t_tmp = t_now - maxsec;
335 if (X509_cmp_time(thisupd, &t_tmp) < 0)
336 {
337 OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_TOO_OLD);
338 ret = 0;
339 }
340 }
341 }
342
343
344 if (!nextupd) return ret;
345
346 /* Check nextUpdate is valid and not more than nsec in the past */
347 if (!ASN1_GENERALIZEDTIME_check(nextupd))
348 {
349 OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_ERROR_IN_NEXTUPDATE_FIELD);
350 ret = 0;
351 }
352 else
353 {
354 t_tmp = t_now - nsec;
355 if (X509_cmp_time(nextupd, &t_tmp) < 0)
356 {
357 OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_STATUS_EXPIRED);
358 ret = 0;
359 }
360 }
361
362 /* Also don't allow nextUpdate to precede thisUpdate */
363 if (ASN1_STRING_cmp(nextupd, thisupd) < 0)
364 {
365 OCSPerr(OCSP_F_OCSP_CHECK_VALIDITY, OCSP_R_NEXTUPDATE_BEFORE_THISUPDATE);
366 ret = 0;
367 }
368
369 return ret;
370 }
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-24 06:41:13 +0000