/src/openssl30/crypto/ocsp/ocsp_cl.c

Source (jump to first uncovered line)
/*
 * Copyright 2001-2021 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (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 <time.h>
#include "internal/cryptlib.h"
#include <openssl/asn1.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/pem.h>
#include <openssl/x509v3.h>
#include <openssl/ocsp.h>
#include "ocsp_local.h"

/*
 * 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.
 */
OCSP_ONEREQ *OCSP_request_add0_id(OCSP_REQUEST *req, OCSP_CERTID *cid)
{
    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)) {
        one->reqCert = NULL; /* do not free on error */
        OCSP_ONEREQ_free(one);
        return NULL;
    }
    return one;
}

/* Set requestorName from an X509_NAME structure */
int OCSP_request_set1_name(OCSP_REQUEST *req, const X509_NAME *nm)
{
    GENERAL_NAME *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)
{
    if (req->optionalSignature == NULL
            && (req->optionalSignature = OCSP_SIGNATURE_new()) == NULL)
        return 0;
    if (cert == NULL)
        return 1;
    return ossl_x509_add_cert_new(&req->optionalSignature->certs, cert,
                                  X509_ADD_FLAG_UP_REF);
}

/*
 * 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)
{
    if (!OCSP_request_set1_name(req, X509_get_subject_name(signer)))
        goto err;

    if ((req->optionalSignature = OCSP_SIGNATURE_new()) == NULL)
        goto err;
    if (key != NULL) {
        if (!X509_check_private_key(signer, key)) {
            ERR_raise(ERR_LIB_OCSP,
                      OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
            goto err;
        }
        if (!OCSP_REQUEST_sign(req, key, dgst, signer->libctx, signer->propq))
            goto err;
    }

    if ((flags & OCSP_NOCERTS) == 0) {
        if (!OCSP_request_add1_cert(req, signer)
            || !X509_add_certs(req->optionalSignature->certs, certs,
                               X509_ADD_FLAG_UP_REF))
            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);
}

/*
 * 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 = resp->responseBytes;

    if (rb == NULL) {
        ERR_raise(ERR_LIB_OCSP, OCSP_R_NO_RESPONSE_DATA);
        return NULL;
    }
    if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic) {
        ERR_raise(ERR_LIB_OCSP, OCSP_R_NOT_BASIC_RESPONSE);
        return NULL;
    }

    return ASN1_item_unpack(rb->response, ASN1_ITEM_rptr(OCSP_BASICRESP));
}

const ASN1_OCTET_STRING *OCSP_resp_get0_signature(const OCSP_BASICRESP *bs)
{
    return bs->signature;
}

const X509_ALGOR *OCSP_resp_get0_tbs_sigalg(const OCSP_BASICRESP *bs)
{
    return &bs->signatureAlgorithm;
}

const OCSP_RESPDATA *OCSP_resp_get0_respdata(const OCSP_BASICRESP *bs)
{
    return &bs->tbsResponseData;
}

/* Return number of OCSP_SINGLERESP responses present in a basic response */

int OCSP_resp_count(OCSP_BASICRESP *bs)
{
    if (bs == NULL)
        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 == NULL)
        return NULL;
    return sk_OCSP_SINGLERESP_value(bs->tbsResponseData.responses, idx);
}

const ASN1_GENERALIZEDTIME *OCSP_resp_get0_produced_at(const OCSP_BASICRESP *bs)
{
    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;
}

int OCSP_resp_get1_id(const OCSP_BASICRESP *bs,
                      ASN1_OCTET_STRING **pid,
                      X509_NAME **pname)
{
    const OCSP_RESPID *rid = &bs->tbsResponseData.responderId;

    if (rid->type == V_OCSP_RESPID_NAME) {
        *pname = X509_NAME_dup(rid->value.byName);
        *pid = NULL;
    } else if (rid->type == V_OCSP_RESPID_KEY) {
        *pid = ASN1_OCTET_STRING_dup(rid->value.byKey);
        *pname = NULL;
    } else {
        return 0;
    }
    if (*pname == NULL && *pid == NULL)
        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 == NULL)
        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;

    if (single == NULL)
        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 != NULL)
        *thisupd = single->thisUpdate;
    if (nextupd != NULL)
        *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_resp_find(bs, id, -1);
    OCSP_SINGLERESP *single;

    /* 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 != NULL)
        *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 won't 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)) {
        ERR_raise(ERR_LIB_OCSP, OCSP_R_ERROR_IN_THISUPDATE_FIELD);
        ret = 0;
    } else {
        t_tmp = t_now + nsec;
        if (X509_cmp_time(thisupd, &t_tmp) > 0) {
            ERR_raise(ERR_LIB_OCSP, 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) {
                ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_TOO_OLD);
                ret = 0;
            }
        }
    }

    if (nextupd == NULL)
        return ret;

    /* Check nextUpdate is valid and not more than nsec in the past */
    if (!ASN1_GENERALIZEDTIME_check(nextupd)) {
        ERR_raise(ERR_LIB_OCSP, OCSP_R_ERROR_IN_NEXTUPDATE_FIELD);
        ret = 0;
    } else {
        t_tmp = t_now - nsec;
        if (X509_cmp_time(nextupd, &t_tmp) < 0) {
            ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_EXPIRED);
            ret = 0;
        }
    }

    /* Also don't allow nextUpdate to precede thisUpdate */
    if (ASN1_STRING_cmp(nextupd, thisupd) < 0) {
        ERR_raise(ERR_LIB_OCSP, OCSP_R_NEXTUPDATE_BEFORE_THISUPDATE);
        ret = 0;
    }

    return ret;
}

const OCSP_CERTID *OCSP_SINGLERESP_get0_id(const OCSP_SINGLERESP *single)
{
    return single->certId;
}

Coverage Report

Created: 2023-09-25 06:45

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 2001-2021 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (the "License"). You may not use
5		* this file except in compliance with the License. You can obtain a copy
6		* in the file LICENSE in the source distribution or at
7		* https://www.openssl.org/source/license.html
8		*/
9
10		#include <stdio.h>
11		#include <time.h>
12		#include "internal/cryptlib.h"
13		#include <openssl/asn1.h>
14		#include <openssl/objects.h>
15		#include <openssl/x509.h>
16		#include <openssl/pem.h>
17		#include <openssl/x509v3.h>
18		#include <openssl/ocsp.h>
19		#include "ocsp_local.h"
20
21		/*
22		* Utility functions related to sending OCSP requests and extracting relevant
23		* information from the response.
24		*/
25
26		/*
27		* Add an OCSP_CERTID to an OCSP request. Return new OCSP_ONEREQ pointer:
28		* useful if we want to add extensions.
29		*/
30		OCSP_ONEREQ OCSP_request_add0_id(OCSP_REQUEST req, OCSP_CERTID *cid)
31	0	{
32	0	OCSP_ONEREQ *one = NULL;
33
34	0	if ((one = OCSP_ONEREQ_new()) == NULL)
35	0	return NULL;
36	0	OCSP_CERTID_free(one->reqCert);
37	0	one->reqCert = cid;
38	0	if (req && !sk_OCSP_ONEREQ_push(req->tbsRequest.requestList, one)) {
39	0	one->reqCert = NULL; /* do not free on error */
40	0	OCSP_ONEREQ_free(one);
41	0	return NULL;
42	0	}
43	0	return one;
44	0	}
45
46		/* Set requestorName from an X509_NAME structure */
47		int OCSP_request_set1_name(OCSP_REQUEST req, const X509_NAME nm)
48	0	{
49	0	GENERAL_NAME *gen = GENERAL_NAME_new();
50
51	0	if (gen == NULL)
52	0	return 0;
53	0	if (!X509_NAME_set(&gen->d.directoryName, nm)) {
54	0	GENERAL_NAME_free(gen);
55	0	return 0;
56	0	}
57	0	gen->type = GEN_DIRNAME;
58	0	GENERAL_NAME_free(req->tbsRequest.requestorName);
59	0	req->tbsRequest.requestorName = gen;
60	0	return 1;
61	0	}
62
63		/* Add a certificate to an OCSP request */
64		int OCSP_request_add1_cert(OCSP_REQUEST req, X509 cert)
65	0	{
66	0	if (req->optionalSignature == NULL
67	0	&& (req->optionalSignature = OCSP_SIGNATURE_new()) == NULL)
68	0	return 0;
69	0	if (cert == NULL)
70	0	return 1;
71	0	return ossl_x509_add_cert_new(&req->optionalSignature->certs, cert,
72	0	X509_ADD_FLAG_UP_REF);
73	0	}
74
75		/*
76		* Sign an OCSP request set the requestorName to the subject name of an
77		* optional signers certificate and include one or more optional certificates
78		* in the request. Behaves like PKCS7_sign().
79		*/
80		int OCSP_request_sign(OCSP_REQUEST *req,
81		X509 *signer,
82		EVP_PKEY *key,
83		const EVP_MD *dgst,
84		STACK_OF(X509) *certs, unsigned long flags)
85	0	{
86	0	if (!OCSP_request_set1_name(req, X509_get_subject_name(signer)))
87	0	goto err;
88
89	0	if ((req->optionalSignature = OCSP_SIGNATURE_new()) == NULL)
90	0	goto err;
91	0	if (key != NULL) {
92	0	if (!X509_check_private_key(signer, key)) {
93	0	ERR_raise(ERR_LIB_OCSP,
94	0	OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
95	0	goto err;
96	0	}
97	0	if (!OCSP_REQUEST_sign(req, key, dgst, signer->libctx, signer->propq))
98	0	goto err;
99	0	}
100
101	0	if ((flags & OCSP_NOCERTS) == 0) {
102	0	if (!OCSP_request_add1_cert(req, signer)
103	0	\|\| !X509_add_certs(req->optionalSignature->certs, certs,
104	0	X509_ADD_FLAG_UP_REF))
105	0	goto err;
106	0	}
107
108	0	return 1;
109	0	err:
110	0	OCSP_SIGNATURE_free(req->optionalSignature);
111	0	req->optionalSignature = NULL;
112	0	return 0;
113	0	}
114
115		/* Get response status */
116		int OCSP_response_status(OCSP_RESPONSE *resp)
117	0	{
118	0	return ASN1_ENUMERATED_get(resp->responseStatus);
119	0	}
120
121		/*
122		* Extract basic response from OCSP_RESPONSE or NULL if no basic response
123		* present.
124		*/
125		OCSP_BASICRESP OCSP_response_get1_basic(OCSP_RESPONSE resp)
126	113	{
127	113	OCSP_RESPBYTES *rb = resp->responseBytes;
128
129	113	if (rb == NULL) {
130	2	ERR_raise(ERR_LIB_OCSP, OCSP_R_NO_RESPONSE_DATA);
131	2	return NULL;
132	2	}
133	111	if (OBJ_obj2nid(rb->responseType) != NID_id_pkix_OCSP_basic) {
134	2	ERR_raise(ERR_LIB_OCSP, OCSP_R_NOT_BASIC_RESPONSE);
135	2	return NULL;
136	2	}
137
138	109	return ASN1_item_unpack(rb->response, ASN1_ITEM_rptr(OCSP_BASICRESP));
139	111	}
140
141		const ASN1_OCTET_STRING OCSP_resp_get0_signature(const OCSP_BASICRESP bs)
142	0	{
143	0	return bs->signature;
144	0	}
145
146		const X509_ALGOR OCSP_resp_get0_tbs_sigalg(const OCSP_BASICRESP bs)
147	0	{
148	0	return &bs->signatureAlgorithm;
149	0	}
150
151		const OCSP_RESPDATA OCSP_resp_get0_respdata(const OCSP_BASICRESP bs)
152	0	{
153	0	return &bs->tbsResponseData;
154	0	}
155
156		/* Return number of OCSP_SINGLERESP responses present in a basic response */
157
158		int OCSP_resp_count(OCSP_BASICRESP *bs)
159	0	{
160	0	if (bs == NULL)
161	0	return -1;
162	0	return sk_OCSP_SINGLERESP_num(bs->tbsResponseData.responses);
163	0	}
164
165		/* Extract an OCSP_SINGLERESP response with a given index */
166		OCSP_SINGLERESP OCSP_resp_get0(OCSP_BASICRESP bs, int idx)
167	11	{
168	11	if (bs == NULL)
169	0	return NULL;
170	11	return sk_OCSP_SINGLERESP_value(bs->tbsResponseData.responses, idx);
171	11	}
172
173		const ASN1_GENERALIZEDTIME OCSP_resp_get0_produced_at(const OCSP_BASICRESP bs)
174	0	{
175	0	return bs->tbsResponseData.producedAt;
176	0	}
177
178		const STACK_OF(X509) OCSP_resp_get0_certs(const OCSP_BASICRESP bs)
179	0	{
180	0	return bs->certs;
181	0	}
182
183		int OCSP_resp_get0_id(const OCSP_BASICRESP *bs,
184		const ASN1_OCTET_STRING **pid,
185		const X509_NAME **pname)
186	0	{
187	0	const OCSP_RESPID *rid = &bs->tbsResponseData.responderId;
188
189	0	if (rid->type == V_OCSP_RESPID_NAME) {
190	0	*pname = rid->value.byName;
191	0	*pid = NULL;
192	0	} else if (rid->type == V_OCSP_RESPID_KEY) {
193	0	*pid = rid->value.byKey;
194	0	*pname = NULL;
195	0	} else {
196	0	return 0;
197	0	}
198	0	return 1;
199	0	}
200
201		int OCSP_resp_get1_id(const OCSP_BASICRESP *bs,
202		ASN1_OCTET_STRING **pid,
203		X509_NAME **pname)
204	0	{
205	0	const OCSP_RESPID *rid = &bs->tbsResponseData.responderId;
206
207	0	if (rid->type == V_OCSP_RESPID_NAME) {
208	0	*pname = X509_NAME_dup(rid->value.byName);
209	0	*pid = NULL;
210	0	} else if (rid->type == V_OCSP_RESPID_KEY) {
211	0	*pid = ASN1_OCTET_STRING_dup(rid->value.byKey);
212	0	*pname = NULL;
213	0	} else {
214	0	return 0;
215	0	}
216	0	if (pname == NULL && pid == NULL)
217	0	return 0;
218	0	return 1;
219	0	}
220
221		/* Look single response matching a given certificate ID */
222		int OCSP_resp_find(OCSP_BASICRESP bs, OCSP_CERTID id, int last)
223	87	{
224	87	int i;
225	87	STACK_OF(OCSP_SINGLERESP) *sresp;
226	87	OCSP_SINGLERESP *single;
227
228	87	if (bs == NULL)
229	0	return -1;
230	87	if (last < 0)
231	87	last = 0;
232	0	else
233	0	last++;
234	87	sresp = bs->tbsResponseData.responses;
235	163	for (i = last; i < sk_OCSP_SINGLERESP_num(sresp); i++) {
236	87	single = sk_OCSP_SINGLERESP_value(sresp, i);
237	87	if (!OCSP_id_cmp(id, single->certId))
238	11	return i;
239	87	}
240	76	return -1;
241	87	}
242
243		/*
244		* Extract status information from an OCSP_SINGLERESP structure. Note: the
245		* revtime and reason values are only set if the certificate status is
246		* revoked. Returns numerical value of status.
247		*/
248		int OCSP_single_get0_status(OCSP_SINGLERESP single, int reason,
249		ASN1_GENERALIZEDTIME **revtime,
250		ASN1_GENERALIZEDTIME **thisupd,
251		ASN1_GENERALIZEDTIME **nextupd)
252	11	{
253	11	int ret;
254	11	OCSP_CERTSTATUS *cst;
255
256	11	if (single == NULL)
257	0	return -1;
258	11	cst = single->certStatus;
259	11	ret = cst->type;
260	11	if (ret == V_OCSP_CERTSTATUS_REVOKED) {
261	0	OCSP_REVOKEDINFO *rev = cst->value.revoked;
262
263	0	if (revtime)
264	0	*revtime = rev->revocationTime;
265	0	if (reason) {
266	0	if (rev->revocationReason)
267	0	*reason = ASN1_ENUMERATED_get(rev->revocationReason);
268	0	else
269	0	*reason = -1;
270	0	}
271	0	}
272	11	if (thisupd != NULL)
273	11	*thisupd = single->thisUpdate;
274	11	if (nextupd != NULL)
275	11	*nextupd = single->nextUpdate;
276	11	return ret;
277	11	}
278
279		/*
280		* This function combines the previous ones: look up a certificate ID and if
281		* found extract status information. Return 0 is successful.
282		*/
283		int OCSP_resp_find_status(OCSP_BASICRESP bs, OCSP_CERTID id, int *status,
284		int *reason,
285		ASN1_GENERALIZEDTIME **revtime,
286		ASN1_GENERALIZEDTIME **thisupd,
287		ASN1_GENERALIZEDTIME **nextupd)
288	87	{
289	87	int i = OCSP_resp_find(bs, id, -1);
290	87	OCSP_SINGLERESP *single;
291
292		/* Maybe check for multiple responses and give an error? */
293	87	if (i < 0)
294	76	return 0;
295	11	single = OCSP_resp_get0(bs, i);
296	11	i = OCSP_single_get0_status(single, reason, revtime, thisupd, nextupd);
297	11	if (status != NULL)
298	11	*status = i;
299	11	return 1;
300	87	}
301
302		/*
303		* Check validity of thisUpdate and nextUpdate fields. It is possible that
304		* the request will take a few seconds to process and/or the time won't be
305		* totally accurate. Therefore to avoid rejecting otherwise valid time we
306		* allow the times to be within 'nsec' of the current time. Also to avoid
307		* accepting very old responses without a nextUpdate field an optional maxage
308		* parameter specifies the maximum age the thisUpdate field can be.
309		*/
310		int OCSP_check_validity(ASN1_GENERALIZEDTIME *thisupd,
311		ASN1_GENERALIZEDTIME *nextupd, long nsec, long maxsec)
312	0	{
313	0	int ret = 1;
314	0	time_t t_now, t_tmp;
315
316	0	time(&t_now);
317		/* Check thisUpdate is valid and not more than nsec in the future */
318	0	if (!ASN1_GENERALIZEDTIME_check(thisupd)) {
319	0	ERR_raise(ERR_LIB_OCSP, OCSP_R_ERROR_IN_THISUPDATE_FIELD);
320	0	ret = 0;
321	0	} else {
322	0	t_tmp = t_now + nsec;
323	0	if (X509_cmp_time(thisupd, &t_tmp) > 0) {
324	0	ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_NOT_YET_VALID);
325	0	ret = 0;
326	0	}
327
328		/*
329		* If maxsec specified check thisUpdate is not more than maxsec in
330		* the past
331		*/
332	0	if (maxsec >= 0) {
333	0	t_tmp = t_now - maxsec;
334	0	if (X509_cmp_time(thisupd, &t_tmp) < 0) {
335	0	ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_TOO_OLD);
336	0	ret = 0;
337	0	}
338	0	}
339	0	}
340
341	0	if (nextupd == NULL)
342	0	return ret;
343
344		/* Check nextUpdate is valid and not more than nsec in the past */
345	0	if (!ASN1_GENERALIZEDTIME_check(nextupd)) {
346	0	ERR_raise(ERR_LIB_OCSP, OCSP_R_ERROR_IN_NEXTUPDATE_FIELD);
347	0	ret = 0;
348	0	} else {
349	0	t_tmp = t_now - nsec;
350	0	if (X509_cmp_time(nextupd, &t_tmp) < 0) {
351	0	ERR_raise(ERR_LIB_OCSP, OCSP_R_STATUS_EXPIRED);
352	0	ret = 0;
353	0	}
354	0	}
355
356		/* Also don't allow nextUpdate to precede thisUpdate */
357	0	if (ASN1_STRING_cmp(nextupd, thisupd) < 0) {
358	0	ERR_raise(ERR_LIB_OCSP, OCSP_R_NEXTUPDATE_BEFORE_THISUPDATE);
359	0	ret = 0;
360	0	}
361
362	0	return ret;
363	0	}
364
365		const OCSP_CERTID OCSP_SINGLERESP_get0_id(const OCSP_SINGLERESP single)
366	0	{
367	0	return single->certId;
368	0	}