GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libcrypto/ocsp/ocsp_srv.c Lines: 57 94 60.6 %
Date: 2017-11-13 Branches: 36 92 39.1 %

Line Branch Exec Source
1
/* $OpenBSD: ocsp_srv.c,v 1.10 2017/01/29 17:49:23 beck Exp $ */
2
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3
 * project 2001.
4
 */
5
/* ====================================================================
6
 * Copyright (c) 1998-2001 The OpenSSL Project.  All rights reserved.
7
 *
8
 * Redistribution and use in source and binary forms, with or without
9
 * modification, are permitted provided that the following conditions
10
 * are met:
11
 *
12
 * 1. Redistributions of source code must retain the above copyright
13
 *    notice, this list of conditions and the following disclaimer.
14
 *
15
 * 2. Redistributions in binary form must reproduce the above copyright
16
 *    notice, this list of conditions and the following disclaimer in
17
 *    the documentation and/or other materials provided with the
18
 *    distribution.
19
 *
20
 * 3. All advertising materials mentioning features or use of this
21
 *    software must display the following acknowledgment:
22
 *    "This product includes software developed by the OpenSSL Project
23
 *    for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
24
 *
25
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26
 *    endorse or promote products derived from this software without
27
 *    prior written permission. For written permission, please contact
28
 *    openssl-core@openssl.org.
29
 *
30
 * 5. Products derived from this software may not be called "OpenSSL"
31
 *    nor may "OpenSSL" appear in their names without prior written
32
 *    permission of the OpenSSL Project.
33
 *
34
 * 6. Redistributions of any form whatsoever must retain the following
35
 *    acknowledgment:
36
 *    "This product includes software developed by the OpenSSL Project
37
 *    for use in the OpenSSL Toolkit (http://www.openssl.org/)"
38
 *
39
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50
 * OF THE POSSIBILITY OF SUCH DAMAGE.
51
 * ====================================================================
52
 *
53
 * This product includes cryptographic software written by Eric Young
54
 * (eay@cryptsoft.com).  This product includes software written by Tim
55
 * Hudson (tjh@cryptsoft.com).
56
 *
57
 */
58
59
#include <stdio.h>
60
61
#include <openssl/err.h>
62
#include <openssl/objects.h>
63
#include <openssl/ocsp.h>
64
#include <openssl/pem.h>
65
#include <openssl/x509.h>
66
#include <openssl/x509v3.h>
67
68
/* Utility functions related to sending OCSP responses and extracting
69
 * relevant information from the request.
70
 */
71
72
int
73
OCSP_request_onereq_count(OCSP_REQUEST *req)
74
{
75
8
	return sk_OCSP_ONEREQ_num(req->tbsRequest->requestList);
76
}
77
78
OCSP_ONEREQ *
79
OCSP_request_onereq_get0(OCSP_REQUEST *req, int i)
80
{
81
16
	return sk_OCSP_ONEREQ_value(req->tbsRequest->requestList, i);
82
}
83
84
OCSP_CERTID *
85
OCSP_onereq_get0_id(OCSP_ONEREQ *one)
86
{
87
16
	return one->reqCert;
88
}
89
90
int
91
OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,
92
    ASN1_OCTET_STRING **pikeyHash, ASN1_INTEGER **pserial, OCSP_CERTID *cid)
93
{
94
32
	if (!cid)
95
		return 0;
96
16
	if (pmd)
97
8
		*pmd = cid->hashAlgorithm->algorithm;
98
16
	if (piNameHash)
99
		*piNameHash = cid->issuerNameHash;
100
16
	if (pikeyHash)
101
		*pikeyHash = cid->issuerKeyHash;
102
16
	if (pserial)
103
8
		*pserial = cid->serialNumber;
104
16
	return 1;
105
16
}
106
107
int
108
OCSP_request_is_signed(OCSP_REQUEST *req)
109
{
110
	if (req->optionalSignature)
111
		return 1;
112
	return 0;
113
}
114
115
/* Create an OCSP response and encode an optional basic response */
116
OCSP_RESPONSE *
117
OCSP_response_create(int status, OCSP_BASICRESP *bs)
118
{
119
	OCSP_RESPONSE *rsp = NULL;
120
121
8
	if (!(rsp = OCSP_RESPONSE_new()))
122
		goto err;
123
4
	if (!(ASN1_ENUMERATED_set(rsp->responseStatus, status)))
124
		goto err;
125
4
	if (!bs)
126
		return rsp;
127
4
	if (!(rsp->responseBytes = OCSP_RESPBYTES_new()))
128
		goto err;
129
4
	rsp->responseBytes->responseType = OBJ_nid2obj(NID_id_pkix_OCSP_basic);
130
8
	if (!ASN1_item_pack(bs, &OCSP_BASICRESP_it,
131
4
	    &rsp->responseBytes->response))
132
		goto err;
133
4
	return rsp;
134
135
err:
136
	if (rsp)
137
		OCSP_RESPONSE_free(rsp);
138
	return NULL;
139
4
}
140
141
OCSP_SINGLERESP *
142
OCSP_basic_add1_status(OCSP_BASICRESP *rsp, OCSP_CERTID *cid, int status,
143
    int reason, ASN1_TIME *revtime, ASN1_TIME *thisupd, ASN1_TIME *nextupd)
144
{
145
	OCSP_SINGLERESP *single = NULL;
146
	OCSP_CERTSTATUS *cs;
147
	OCSP_REVOKEDINFO *ri;
148
149

16
	if (!rsp->tbsResponseData->responses &&
150
	    !(rsp->tbsResponseData->responses = sk_OCSP_SINGLERESP_new_null()))
151
		goto err;
152
153
8
	if (!(single = OCSP_SINGLERESP_new()))
154
		goto err;
155
156
8
	if (!ASN1_TIME_to_generalizedtime(thisupd, &single->thisUpdate))
157
		goto err;
158

8
	if (nextupd &&
159
	    !ASN1_TIME_to_generalizedtime(nextupd, &single->nextUpdate))
160
		goto err;
161
162
8
	OCSP_CERTID_free(single->certId);
163
164
8
	if (!(single->certId = OCSP_CERTID_dup(cid)))
165
		goto err;
166
167
8
	cs = single->certStatus;
168

8
	switch (cs->type = status) {
169
	case V_OCSP_CERTSTATUS_REVOKED:
170
4
		if (!revtime) {
171
			OCSPerror(OCSP_R_NO_REVOKED_TIME);
172
			goto err;
173
		}
174
4
		if (!(cs->value.revoked = ri = OCSP_REVOKEDINFO_new()))
175
			goto err;
176
4
		if (!ASN1_TIME_to_generalizedtime(revtime, &ri->revocationTime))
177
			goto err;
178
4
		if (reason != OCSP_REVOKED_STATUS_NOSTATUS) {
179
			if (!(ri->revocationReason = ASN1_ENUMERATED_new()))
180
				goto err;
181
			if (!(ASN1_ENUMERATED_set(ri->revocationReason,
182
			    reason)))
183
				goto err;
184
		}
185
		break;
186
187
	case V_OCSP_CERTSTATUS_GOOD:
188
4
		cs->value.good = ASN1_NULL_new();
189
4
		break;
190
191
	case V_OCSP_CERTSTATUS_UNKNOWN:
192
		cs->value.unknown = ASN1_NULL_new();
193
		break;
194
195
	default:
196
		goto err;
197
	}
198
8
	if (!(sk_OCSP_SINGLERESP_push(rsp->tbsResponseData->responses, single)))
199
		goto err;
200
8
	return single;
201
202
err:
203
	OCSP_SINGLERESP_free(single);
204
	return NULL;
205
8
}
206
207
/* Add a certificate to an OCSP request */
208
int
209
OCSP_basic_add1_cert(OCSP_BASICRESP *resp, X509 *cert)
210
{
211

12
	if (!resp->certs && !(resp->certs = sk_X509_new_null()))
212
		return 0;
213
214
4
	if (!sk_X509_push(resp->certs, cert))
215
		return 0;
216
4
	CRYPTO_add(&cert->references, 1, CRYPTO_LOCK_X509);
217
4
	return 1;
218
4
}
219
220
int
221
OCSP_basic_sign(OCSP_BASICRESP *brsp, X509 *signer, EVP_PKEY *key,
222
    const EVP_MD *dgst, STACK_OF(X509) *certs, unsigned long flags)
223
{
224
	int i;
225
	OCSP_RESPID *rid;
226
227
8
	if (!X509_check_private_key(signer, key)) {
228
		OCSPerror(OCSP_R_PRIVATE_KEY_DOES_NOT_MATCH_CERTIFICATE);
229
		goto err;
230
	}
231
232
4
	if (!(flags & OCSP_NOCERTS)) {
233
4
		if (!OCSP_basic_add1_cert(brsp, signer))
234
			goto err;
235
8
		for (i = 0; i < sk_X509_num(certs); i++) {
236
			X509 *tmpcert = sk_X509_value(certs, i);
237
			if (!OCSP_basic_add1_cert(brsp, tmpcert))
238
				goto err;
239
		}
240
	}
241
242
4
	rid = brsp->tbsResponseData->responderId;
243
4
	if (flags & OCSP_RESPID_KEY) {
244
		unsigned char md[SHA_DIGEST_LENGTH];
245
246
		X509_pubkey_digest(signer, EVP_sha1(), md, NULL);
247
		if (!(rid->value.byKey = ASN1_OCTET_STRING_new()))
248
			goto err;
249
		if (!(ASN1_OCTET_STRING_set(rid->value.byKey, md,
250
		    SHA_DIGEST_LENGTH)))
251
			goto err;
252
		rid->type = V_OCSP_RESPID_KEY;
253
	} else {
254
8
		if (!X509_NAME_set(&rid->value.byName,
255
4
		    X509_get_subject_name(signer)))
256
			goto err;
257
4
		rid->type = V_OCSP_RESPID_NAME;
258
	}
259
260

8
	if (!(flags & OCSP_NOTIME) &&
261
4
	    !ASN1_GENERALIZEDTIME_set(brsp->tbsResponseData->producedAt, time(NULL)))
262
		goto err;
263
264
	/* Right now, I think that not doing double hashing is the right
265
	   thing.	-- Richard Levitte */
266
267
4
	if (!OCSP_BASICRESP_sign(brsp, key, dgst, 0))
268
		goto err;
269
270
4
	return 1;
271
272
err:
273
	return 0;
274
4
}