crypto/ocsp/ocsp_lib.c

/* ocsp_lib.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).
 *
 */

#include <stdio.h>
#include <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 <openssl/asn1t.h>

/* Convert a certificate and its issuer to an OCSP_CERTID */

OCSP_CERTID *OCSP_cert_to_id(const EVP_MD *dgst, X509 *subject, X509 *issuer)
{
    X509_NAME *iname;
    ASN1_INTEGER *serial;
    ASN1_BIT_STRING *ikey;
#ifndef OPENSSL_NO_SHA1
    if (!dgst)
        dgst = EVP_sha1();
#endif
    if (subject) {
        iname = X509_get_issuer_name(subject);
        serial = X509_get_serialNumber(subject);
    } else {
        iname = X509_get_subject_name(issuer);
        serial = NULL;
    }
    ikey = X509_get0_pubkey_bitstr(issuer);
    return OCSP_cert_id_new(dgst, iname, ikey, serial);
}

OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst,
                              X509_NAME *issuerName,
                              ASN1_BIT_STRING *issuerKey,
                              ASN1_INTEGER *serialNumber)
{
    int nid;
    unsigned int i;
    X509_ALGOR *alg;
    OCSP_CERTID *cid = NULL;
    unsigned char md[EVP_MAX_MD_SIZE];

    if (!(cid = OCSP_CERTID_new()))
        goto err;

    alg = cid->hashAlgorithm;
    if (alg->algorithm != NULL)
        ASN1_OBJECT_free(alg->algorithm);
    if ((nid = EVP_MD_type(dgst)) == NID_undef) {
        OCSPerr(OCSP_F_OCSP_CERT_ID_NEW, OCSP_R_UNKNOWN_NID);
        goto err;
    }
    if (!(alg->algorithm = OBJ_nid2obj(nid)))
        goto err;
    if ((alg->parameter = ASN1_TYPE_new()) == NULL)
        goto err;
    alg->parameter->type = V_ASN1_NULL;

    if (!X509_NAME_digest(issuerName, dgst, md, &i))
        goto digerr;
    if (!(ASN1_OCTET_STRING_set(cid->issuerNameHash, md, i)))
        goto err;

    /* Calculate the issuerKey hash, excluding tag and length */
    if (!EVP_Digest(issuerKey->data, issuerKey->length, md, &i, dgst, NULL))
        goto err;

    if (!(ASN1_OCTET_STRING_set(cid->issuerKeyHash, md, i)))
        goto err;

    if (serialNumber) {
        ASN1_INTEGER_free(cid->serialNumber);
        if (!(cid->serialNumber = ASN1_INTEGER_dup(serialNumber)))
            goto err;
    }
    return cid;
 digerr:
    OCSPerr(OCSP_F_OCSP_CERT_ID_NEW, OCSP_R_DIGEST_ERR);
 err:
    if (cid)
        OCSP_CERTID_free(cid);
    return NULL;
}

int OCSP_id_issuer_cmp(OCSP_CERTID *a, OCSP_CERTID *b)
{
    int ret;
    ret = OBJ_cmp(a->hashAlgorithm->algorithm, b->hashAlgorithm->algorithm);
    if (ret)
        return ret;
    ret = ASN1_OCTET_STRING_cmp(a->issuerNameHash, b->issuerNameHash);
    if (ret)
        return ret;
    return ASN1_OCTET_STRING_cmp(a->issuerKeyHash, b->issuerKeyHash);
}

int OCSP_id_cmp(OCSP_CERTID *a, OCSP_CERTID *b)
{
    int ret;
    ret = OCSP_id_issuer_cmp(a, b);
    if (ret)
        return ret;
    return ASN1_INTEGER_cmp(a->serialNumber, b->serialNumber);
}

/*
 * Parse a URL and split it up into host, port and path components and
 * whether it is SSL.
 */

int OCSP_parse_url(char *url, char **phost, char **pport, char **ppath,
                   int *pssl)
{
    char *p, *buf;

    char *host, *port;

    *phost = NULL;
    *pport = NULL;
    *ppath = NULL;

    /* dup the buffer since we are going to mess with it */
    buf = BUF_strdup(url);
    if (!buf)
        goto mem_err;

    /* Check for initial colon */
    p = strchr(buf, ':');

    if (!p)
        goto parse_err;

    *(p++) = '\0';

    if (!strcmp(buf, "http")) {
        *pssl = 0;
        port = "80";
    } else if (!strcmp(buf, "https")) {
        *pssl = 1;
        port = "443";
    } else
        goto parse_err;

    /* Check for double slash */
    if ((p[0] != '/') || (p[1] != '/'))
        goto parse_err;

    p += 2;

    host = p;

    /* Check for trailing part of path */

    p = strchr(p, '/');

    if (!p)
        *ppath = BUF_strdup("/");
    else {
        *ppath = BUF_strdup(p);
        /* Set start of path to 0 so hostname is valid */
        *p = '\0';
    }

    if (!*ppath)
        goto mem_err;

    p = host;
    if (host[0] == '[') {
        /* ipv6 literal */
        host++;
        p = strchr(host, ']');
        if (!p)
            goto parse_err;
        *p = '\0';
        p++;
    }

    /* Look for optional ':' for port number */
    if ((p = strchr(p, ':'))) {
        *p = 0;
        port = p + 1;
    }

    *pport = BUF_strdup(port);
    if (!*pport)
        goto mem_err;

    *phost = BUF_strdup(host);

    if (!*phost)
        goto mem_err;

    OPENSSL_free(buf);

    return 1;

 mem_err:
    OCSPerr(OCSP_F_OCSP_PARSE_URL, ERR_R_MALLOC_FAILURE);
    goto err;

 parse_err:
    OCSPerr(OCSP_F_OCSP_PARSE_URL, OCSP_R_ERROR_PARSING_URL);

 err:
    if (buf)
        OPENSSL_free(buf);
    if (*ppath)
        OPENSSL_free(*ppath);
    if (*pport)
        OPENSSL_free(*pport);
    if (*phost)
        OPENSSL_free(*phost);
    return 0;

}

IMPLEMENT_ASN1_DUP_FUNCTION(OCSP_CERTID)
Revision:	11620
Committed:	Sun Jul 8 16:40:18 2018 UTC (5 years, 9 months ago) by laffer1
Content type:	text/plain
File size:	7873 byte(s)
Log Message:	fix merge issues
#	Content
1	/* ocsp_lib.c */
2	/*
3	* Written by Tom Titchener <Tom_Titchener@groove.net> for the OpenSSL
4	* project.
5	*/
6
7	/*
8	* History: This file was transfered to Richard Levitte from CertCo by Kathy
9	* Weinhold in mid-spring 2000 to be included in OpenSSL or released as a
10	* patch kit.
11	*/
12
13	/* ====================================================================
14	* Copyright (c) 1998-2000 The OpenSSL Project. All rights reserved.
15	*
16	* Redistribution and use in source and binary forms, with or without
17	* modification, are permitted provided that the following conditions
18	* are met:
19	*
20	* 1. Redistributions of source code must retain the above copyright
21	* notice, this list of conditions and the following disclaimer.
22	*
23	* 2. Redistributions in binary form must reproduce the above copyright
24	* notice, this list of conditions and the following disclaimer in
25	* the documentation and/or other materials provided with the
26	* distribution.
27	*
28	* 3. All advertising materials mentioning features or use of this
29	* software must display the following acknowledgment:
30	* "This product includes software developed by the OpenSSL Project
31	* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
32	*
33	* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
34	* endorse or promote products derived from this software without
35	* prior written permission. For written permission, please contact
36	* openssl-core@openssl.org.
37	*
38	* 5. Products derived from this software may not be called "OpenSSL"
39	* nor may "OpenSSL" appear in their names without prior written
40	* permission of the OpenSSL Project.
41	*
42	* 6. Redistributions of any form whatsoever must retain the following
43	* acknowledgment:
44	* "This product includes software developed by the OpenSSL Project
45	* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
46	*
47	* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
48	* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
49	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
50	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
51	* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
52	* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
53	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
54	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
55	* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
56	* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
57	* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
58	* OF THE POSSIBILITY OF SUCH DAMAGE.
59	* ====================================================================
60	*
61	* This product includes cryptographic software written by Eric Young
62	* (eay@cryptsoft.com). This product includes software written by Tim
63	* Hudson (tjh@cryptsoft.com).
64	*
65	*/
66
67	#include <stdio.h>
68	#include <cryptlib.h>
69	#include <openssl/objects.h>
70	#include <openssl/rand.h>
71	#include <openssl/x509.h>
72	#include <openssl/pem.h>
73	#include <openssl/x509v3.h>
74	#include <openssl/ocsp.h>
75	#include <openssl/asn1t.h>
76
77	/* Convert a certificate and its issuer to an OCSP_CERTID */
78
79	OCSP_CERTID OCSP_cert_to_id(const EVP_MD dgst, X509 subject, X509 issuer)
80	{
81	X509_NAME *iname;
82	ASN1_INTEGER *serial;
83	ASN1_BIT_STRING *ikey;
84	#ifndef OPENSSL_NO_SHA1
85	if (!dgst)
86	dgst = EVP_sha1();
87	#endif
88	if (subject) {
89	iname = X509_get_issuer_name(subject);
90	serial = X509_get_serialNumber(subject);
91	} else {
92	iname = X509_get_subject_name(issuer);
93	serial = NULL;
94	}
95	ikey = X509_get0_pubkey_bitstr(issuer);
96	return OCSP_cert_id_new(dgst, iname, ikey, serial);
97	}
98
99	OCSP_CERTID OCSP_cert_id_new(const EVP_MD dgst,
100	X509_NAME *issuerName,
101	ASN1_BIT_STRING *issuerKey,
102	ASN1_INTEGER *serialNumber)
103	{
104	int nid;
105	unsigned int i;
106	X509_ALGOR *alg;
107	OCSP_CERTID *cid = NULL;
108	unsigned char md[EVP_MAX_MD_SIZE];
109
110	if (!(cid = OCSP_CERTID_new()))
111	goto err;
112
113	alg = cid->hashAlgorithm;
114	if (alg->algorithm != NULL)
115	ASN1_OBJECT_free(alg->algorithm);
116	if ((nid = EVP_MD_type(dgst)) == NID_undef) {
117	OCSPerr(OCSP_F_OCSP_CERT_ID_NEW, OCSP_R_UNKNOWN_NID);
118	goto err;
119	}
120	if (!(alg->algorithm = OBJ_nid2obj(nid)))
121	goto err;
122	if ((alg->parameter = ASN1_TYPE_new()) == NULL)
123	goto err;
124	alg->parameter->type = V_ASN1_NULL;
125
126	if (!X509_NAME_digest(issuerName, dgst, md, &i))
127	goto digerr;
128	if (!(ASN1_OCTET_STRING_set(cid->issuerNameHash, md, i)))
129	goto err;
130
131	/* Calculate the issuerKey hash, excluding tag and length */
132	if (!EVP_Digest(issuerKey->data, issuerKey->length, md, &i, dgst, NULL))
133	goto err;
134
135	if (!(ASN1_OCTET_STRING_set(cid->issuerKeyHash, md, i)))
136	goto err;
137
138	if (serialNumber) {
139	ASN1_INTEGER_free(cid->serialNumber);
140	if (!(cid->serialNumber = ASN1_INTEGER_dup(serialNumber)))
141	goto err;
142	}
143	return cid;
144	digerr:
145	OCSPerr(OCSP_F_OCSP_CERT_ID_NEW, OCSP_R_DIGEST_ERR);
146	err:
147	if (cid)
148	OCSP_CERTID_free(cid);
149	return NULL;
150	}
151
152	int OCSP_id_issuer_cmp(OCSP_CERTID a, OCSP_CERTID b)
153	{
154	int ret;
155	ret = OBJ_cmp(a->hashAlgorithm->algorithm, b->hashAlgorithm->algorithm);
156	if (ret)
157	return ret;
158	ret = ASN1_OCTET_STRING_cmp(a->issuerNameHash, b->issuerNameHash);
159	if (ret)
160	return ret;
161	return ASN1_OCTET_STRING_cmp(a->issuerKeyHash, b->issuerKeyHash);
162	}
163
164	int OCSP_id_cmp(OCSP_CERTID a, OCSP_CERTID b)
165	{
166	int ret;
167	ret = OCSP_id_issuer_cmp(a, b);
168	if (ret)
169	return ret;
170	return ASN1_INTEGER_cmp(a->serialNumber, b->serialNumber);
171	}
172
173	/*
174	* Parse a URL and split it up into host, port and path components and
175	* whether it is SSL.
176	*/
177
178	int OCSP_parse_url(char url, char phost, char pport, char *ppath,
179	int *pssl)
180	{
181	char p, buf;
182
183	char host, port;
184
185	*phost = NULL;
186	*pport = NULL;
187	*ppath = NULL;
188
189	/* dup the buffer since we are going to mess with it */
190	buf = BUF_strdup(url);
191	if (!buf)
192	goto mem_err;
193
194	/* Check for initial colon */
195	p = strchr(buf, ':');
196
197	if (!p)
198	goto parse_err;
199
200	*(p++) = '\0';
201
202	if (!strcmp(buf, "http")) {
203	*pssl = 0;
204	port = "80";
205	} else if (!strcmp(buf, "https")) {
206	*pssl = 1;
207	port = "443";
208	} else
209	goto parse_err;
210
211	/* Check for double slash */
212	if ((p[0] != '/') \|\| (p[1] != '/'))
213	goto parse_err;
214
215	p += 2;
216
217	host = p;
218
219	/* Check for trailing part of path */
220
221	p = strchr(p, '/');
222
223	if (!p)
224	*ppath = BUF_strdup("/");
225	else {
226	*ppath = BUF_strdup(p);
227	/* Set start of path to 0 so hostname is valid */
228	*p = '\0';
229	}
230
231	if (!*ppath)
232	goto mem_err;
233
234	p = host;
235	if (host[0] == '[') {
236	/* ipv6 literal */
237	host++;
238	p = strchr(host, ']');
239	if (!p)
240	goto parse_err;
241	*p = '\0';
242	p++;
243	}
244
245	/* Look for optional ':' for port number */
246	if ((p = strchr(p, ':'))) {
247	*p = 0;
248	port = p + 1;
249	}
250
251	*pport = BUF_strdup(port);
252	if (!*pport)
253	goto mem_err;
254
255	*phost = BUF_strdup(host);
256
257	if (!*phost)
258	goto mem_err;
259
260	OPENSSL_free(buf);
261
262	return 1;
263
264	mem_err:
265	OCSPerr(OCSP_F_OCSP_PARSE_URL, ERR_R_MALLOC_FAILURE);
266	goto err;
267
268	parse_err:
269	OCSPerr(OCSP_F_OCSP_PARSE_URL, OCSP_R_ERROR_PARSING_URL);
270
271	err:
272	if (buf)
273	OPENSSL_free(buf);
274	if (*ppath)
275	OPENSSL_free(*ppath);
276	if (*pport)
277	OPENSSL_free(*pport);
278	if (*phost)
279	OPENSSL_free(*phost);
280	return 0;
281
282	}
283
284	IMPLEMENT_ASN1_DUP_FUNCTION(OCSP_CERTID)