Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/crypto/../../libssl/src/crypto/ocsp/ocsp_ext.c	Lines:	0	160	0.0 %
Date:	2016-12-06	Branches:	0	90	0.0 %


/* $OpenBSD: ocsp_ext.c,v 1.14 2015/07/19 18:29:31 miod Exp $ */
/* 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 <stdlib.h>
#include <string.h>

#include <openssl/objects.h>
#include <openssl/ocsp.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>

/* Standard wrapper functions for extensions */

/* OCSP request extensions */

int
OCSP_REQUEST_get_ext_count(OCSP_REQUEST *x)
{
	return X509v3_get_ext_count(x->tbsRequest->requestExtensions);
}

int
OCSP_REQUEST_get_ext_by_NID(OCSP_REQUEST *x, int nid, int lastpos)
{
	return X509v3_get_ext_by_NID(x->tbsRequest->requestExtensions, nid,
	    lastpos);
}

int
OCSP_REQUEST_get_ext_by_OBJ(OCSP_REQUEST *x, ASN1_OBJECT *obj, int lastpos)
{
	return X509v3_get_ext_by_OBJ(x->tbsRequest->requestExtensions, obj,
	    lastpos);
}

int
OCSP_REQUEST_get_ext_by_critical(OCSP_REQUEST *x, int crit, int lastpos)
{
	return X509v3_get_ext_by_critical(x->tbsRequest->requestExtensions,
	    crit, lastpos);
}

X509_EXTENSION *
OCSP_REQUEST_get_ext(OCSP_REQUEST *x, int loc)
{
	return X509v3_get_ext(x->tbsRequest->requestExtensions, loc);
}

X509_EXTENSION *
OCSP_REQUEST_delete_ext(OCSP_REQUEST *x, int loc)
{
	return X509v3_delete_ext(x->tbsRequest->requestExtensions, loc);
}

void *
OCSP_REQUEST_get1_ext_d2i(OCSP_REQUEST *x, int nid, int *crit, int *idx)
{
	return X509V3_get_d2i(x->tbsRequest->requestExtensions, nid, crit, idx);
}

int
OCSP_REQUEST_add1_ext_i2d(OCSP_REQUEST *x, int nid, void *value, int crit,
    unsigned long flags)
{
	return X509V3_add1_i2d(&x->tbsRequest->requestExtensions, nid, value,
	    crit, flags);
}

int
OCSP_REQUEST_add_ext(OCSP_REQUEST *x, X509_EXTENSION *ex, int loc)
{
	return X509v3_add_ext(&(x->tbsRequest->requestExtensions), ex,
	    loc) != NULL;
}

/* Single extensions */

int
OCSP_ONEREQ_get_ext_count(OCSP_ONEREQ *x)
{
	return X509v3_get_ext_count(x->singleRequestExtensions);
}

int
OCSP_ONEREQ_get_ext_by_NID(OCSP_ONEREQ *x, int nid, int lastpos)
{
	return X509v3_get_ext_by_NID(x->singleRequestExtensions, nid, lastpos);
}

int
OCSP_ONEREQ_get_ext_by_OBJ(OCSP_ONEREQ *x, ASN1_OBJECT *obj, int lastpos)
{
	return X509v3_get_ext_by_OBJ(x->singleRequestExtensions, obj, lastpos);
}

int
OCSP_ONEREQ_get_ext_by_critical(OCSP_ONEREQ *x, int crit, int lastpos)
{
	return X509v3_get_ext_by_critical(x->singleRequestExtensions, crit,
	    lastpos);
}

X509_EXTENSION *
OCSP_ONEREQ_get_ext(OCSP_ONEREQ *x, int loc)
{
	return X509v3_get_ext(x->singleRequestExtensions, loc);
}

X509_EXTENSION *
OCSP_ONEREQ_delete_ext(OCSP_ONEREQ *x, int loc)
{
	return X509v3_delete_ext(x->singleRequestExtensions, loc);
}

void *
OCSP_ONEREQ_get1_ext_d2i(OCSP_ONEREQ *x, int nid, int *crit, int *idx)
{
	return X509V3_get_d2i(x->singleRequestExtensions, nid, crit, idx);
}

int
OCSP_ONEREQ_add1_ext_i2d(OCSP_ONEREQ *x, int nid, void *value, int crit,
    unsigned long flags)
{
	return X509V3_add1_i2d(&x->singleRequestExtensions, nid, value, crit,
	    flags);
}

int
OCSP_ONEREQ_add_ext(OCSP_ONEREQ *x, X509_EXTENSION *ex, int loc)
{
	return X509v3_add_ext(&(x->singleRequestExtensions), ex, loc) != NULL;
}

/* OCSP Basic response */

int
OCSP_BASICRESP_get_ext_count(OCSP_BASICRESP *x)
{
	return X509v3_get_ext_count(x->tbsResponseData->responseExtensions);
}

int
OCSP_BASICRESP_get_ext_by_NID(OCSP_BASICRESP *x, int nid, int lastpos)
{
	return X509v3_get_ext_by_NID(x->tbsResponseData->responseExtensions,
	    nid, lastpos);
}

int
OCSP_BASICRESP_get_ext_by_OBJ(OCSP_BASICRESP *x, ASN1_OBJECT *obj, int lastpos)
{
	return X509v3_get_ext_by_OBJ(x->tbsResponseData->responseExtensions,
	    obj, lastpos);
}

int
OCSP_BASICRESP_get_ext_by_critical(OCSP_BASICRESP *x, int crit, int lastpos)
{
	return X509v3_get_ext_by_critical(
	    x->tbsResponseData->responseExtensions, crit, lastpos);
}

X509_EXTENSION *
OCSP_BASICRESP_get_ext(OCSP_BASICRESP *x, int loc)
{
	return X509v3_get_ext(x->tbsResponseData->responseExtensions, loc);
}

X509_EXTENSION *
OCSP_BASICRESP_delete_ext(OCSP_BASICRESP *x, int loc)
{
	return X509v3_delete_ext(x->tbsResponseData->responseExtensions, loc);
}

void *
OCSP_BASICRESP_get1_ext_d2i(OCSP_BASICRESP *x, int nid, int *crit, int *idx)
{
	return X509V3_get_d2i(x->tbsResponseData->responseExtensions, nid,
	    crit, idx);
}

int
OCSP_BASICRESP_add1_ext_i2d(OCSP_BASICRESP *x, int nid, void *value, int crit,
    unsigned long flags)
{
	return X509V3_add1_i2d(&x->tbsResponseData->responseExtensions, nid,
	    value, crit, flags);
}

int
OCSP_BASICRESP_add_ext(OCSP_BASICRESP *x, X509_EXTENSION *ex, int loc)
{
	return X509v3_add_ext(&(x->tbsResponseData->responseExtensions), ex,
	    loc) != NULL;
}

/* OCSP single response extensions */

int
OCSP_SINGLERESP_get_ext_count(OCSP_SINGLERESP *x)
{
	return X509v3_get_ext_count(x->singleExtensions);
}

int
OCSP_SINGLERESP_get_ext_by_NID(OCSP_SINGLERESP *x, int nid, int lastpos)
{
	return X509v3_get_ext_by_NID(x->singleExtensions, nid, lastpos);
}

int
OCSP_SINGLERESP_get_ext_by_OBJ(OCSP_SINGLERESP *x, ASN1_OBJECT *obj,
    int lastpos)
{
	return X509v3_get_ext_by_OBJ(x->singleExtensions, obj, lastpos);
}

int
OCSP_SINGLERESP_get_ext_by_critical(OCSP_SINGLERESP *x, int crit, int lastpos)
{
	return X509v3_get_ext_by_critical(x->singleExtensions, crit, lastpos);
}

X509_EXTENSION *
OCSP_SINGLERESP_get_ext(OCSP_SINGLERESP *x, int loc)
{
	return X509v3_get_ext(x->singleExtensions, loc);
}

X509_EXTENSION *
OCSP_SINGLERESP_delete_ext(OCSP_SINGLERESP *x, int loc)
{
	return X509v3_delete_ext(x->singleExtensions, loc);
}

void *
OCSP_SINGLERESP_get1_ext_d2i(OCSP_SINGLERESP *x, int nid, int *crit, int *idx)
{
	return X509V3_get_d2i(x->singleExtensions, nid, crit, idx);
}

int
OCSP_SINGLERESP_add1_ext_i2d(OCSP_SINGLERESP *x, int nid, void *value, int crit,
    unsigned long flags)
{
	return X509V3_add1_i2d(&x->singleExtensions, nid, value, crit, flags);
}

int
OCSP_SINGLERESP_add_ext(OCSP_SINGLERESP *x, X509_EXTENSION *ex, int loc)
{
	return X509v3_add_ext(&(x->singleExtensions), ex, loc) != NULL;
}

/* also CRL Entry Extensions */
#if 0
ASN1_STRING *
ASN1_STRING_encode(ASN1_STRING *s, i2d_of_void *i2d, void *data,
    STACK_OF(ASN1_OBJECT) *sk)
{
	int i;
	unsigned char *p, *b = NULL;

	if (data) {
		if ((i = i2d(data, NULL)) <= 0)
			goto err;
		if (!(b = p = malloc(i)))
			goto err;
		if (i2d(data, &p) <= 0)
			goto err;
	} else if (sk) {
		if ((i = i2d_ASN1_SET_OF_ASN1_OBJECT(sk, NULL,
		    (I2D_OF(ASN1_OBJECT))i2d, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL,
		    IS_SEQUENCE)) <= 0)
			goto err;
		if (!(b = p = malloc(i)))
			goto err;
		if (i2d_ASN1_SET_OF_ASN1_OBJECT(sk, &p,
		    (I2D_OF(ASN1_OBJECT))i2d, V_ASN1_SEQUENCE,
		    V_ASN1_UNIVERSAL, IS_SEQUENCE) <= 0)
			goto err;
	} else {
		OCSPerr(OCSP_F_ASN1_STRING_ENCODE, OCSP_R_BAD_DATA);
		goto err;
	}
	if (!s && !(s = ASN1_STRING_new()))
		goto err;
	if (!(ASN1_STRING_set(s, b, i)))
		goto err;
	free(b);
	return s;

err:
	free(b);
	return NULL;
}
#endif

/* Nonce handling functions */

/* Add a nonce to an extension stack. A nonce can be specificed or if NULL
 * a random nonce will be generated.
 * Note: OpenSSL 0.9.7d and later create an OCTET STRING containing the
 * nonce, previous versions used the raw nonce.
 */

static int
ocsp_add1_nonce(STACK_OF(X509_EXTENSION) **exts, unsigned char *val, int len)
{
	unsigned char *tmpval;
	ASN1_OCTET_STRING os;
	int ret = 0;

	if (len <= 0)
		len = OCSP_DEFAULT_NONCE_LENGTH;
	/* Create the OCTET STRING manually by writing out the header and
	 * appending the content octets. This avoids an extra memory allocation
	 * operation in some cases. Applications should *NOT* do this because
	 * it relies on library internals.
	 */
	os.length = ASN1_object_size(0, len, V_ASN1_OCTET_STRING);
	os.data = malloc(os.length);
	if (os.data == NULL)
		goto err;
	tmpval = os.data;
	ASN1_put_object(&tmpval, 0, len, V_ASN1_OCTET_STRING, V_ASN1_UNIVERSAL);
	if (val)
		memcpy(tmpval, val, len);
	else
		arc4random_buf(tmpval, len);
	if (!X509V3_add1_i2d(exts, NID_id_pkix_OCSP_Nonce, &os, 0,
	    X509V3_ADD_REPLACE))
		goto err;
	ret = 1;

err:
	free(os.data);
	return ret;
}

/* Add nonce to an OCSP request */
int
OCSP_request_add1_nonce(OCSP_REQUEST *req, unsigned char *val, int len)
{
	return ocsp_add1_nonce(&req->tbsRequest->requestExtensions, val, len);
}

/* Same as above but for a response */
int
OCSP_basic_add1_nonce(OCSP_BASICRESP *resp, unsigned char *val, int len)
{
	return ocsp_add1_nonce(&resp->tbsResponseData->responseExtensions, val,
	    len);
}

/* Check nonce validity in a request and response.
 * Return value reflects result:
 *  1: nonces present and equal.
 *  2: nonces both absent.
 *  3: nonce present in response only.
 *  0: nonces both present and not equal.
 * -1: nonce in request only.
 *
 *  For most responders clients can check return > 0.
 *  If responder doesn't handle nonces return != 0 may be
 *  necessary. return == 0 is always an error.
 */
int
OCSP_check_nonce(OCSP_REQUEST *req, OCSP_BASICRESP *bs)
{
	/*
	 * Since we are only interested in the presence or absence of
	 * the nonce and comparing its value there is no need to use
	 * the X509V3 routines: this way we can avoid them allocating an
	 * ASN1_OCTET_STRING structure for the value which would be
	 * freed immediately anyway.
	 */
	int req_idx, resp_idx;
	X509_EXTENSION *req_ext, *resp_ext;

	req_idx = OCSP_REQUEST_get_ext_by_NID(req, NID_id_pkix_OCSP_Nonce, -1);
	resp_idx = OCSP_BASICRESP_get_ext_by_NID(bs,
	    NID_id_pkix_OCSP_Nonce, -1);
	/* Check both absent */
	if (req_idx < 0 && resp_idx < 0)
		return 2;
	/* Check in request only */
	if (req_idx >= 0 && resp_idx < 0)
		return -1;
	/* Check in response but not request */
	if (req_idx < 0 && resp_idx >= 0)
		return 3;
	/* Otherwise nonce in request and response so retrieve the extensions */
	req_ext = OCSP_REQUEST_get_ext(req, req_idx);
	resp_ext = OCSP_BASICRESP_get_ext(bs, resp_idx);
	if (ASN1_OCTET_STRING_cmp(req_ext->value, resp_ext->value))
		return 0;
	return 1;
}

/* Copy the nonce value (if any) from an OCSP request to
 * a response.
 */
int
OCSP_copy_nonce(OCSP_BASICRESP *resp, OCSP_REQUEST *req)
{
	X509_EXTENSION *req_ext;
	int req_idx;

	/* Check for nonce in request */
	req_idx = OCSP_REQUEST_get_ext_by_NID(req, NID_id_pkix_OCSP_Nonce, -1);
	/* If no nonce that's OK */
	if (req_idx < 0)
		return 2;
	req_ext = OCSP_REQUEST_get_ext(req, req_idx);
	return OCSP_BASICRESP_add_ext(resp, req_ext, -1);
}

X509_EXTENSION *
OCSP_crlID_new(char *url, long *n, char *tim)
{
	X509_EXTENSION *x = NULL;
	OCSP_CRLID *cid = NULL;

	if (!(cid = OCSP_CRLID_new()))
		goto err;
	if (url) {
		if (!(cid->crlUrl = ASN1_IA5STRING_new()))
			goto err;
		if (!(ASN1_STRING_set(cid->crlUrl, url, -1)))
			goto err;
	}
	if (n) {
		if (!(cid->crlNum = ASN1_INTEGER_new()))
			goto err;
		if (!(ASN1_INTEGER_set(cid->crlNum, *n)))
			goto err;
	}
	if (tim) {
		if (!(cid->crlTime = ASN1_GENERALIZEDTIME_new()))
			goto err;
		if (!(ASN1_GENERALIZEDTIME_set_string(cid->crlTime, tim)))
			goto err;
	}
	x = X509V3_EXT_i2d(NID_id_pkix_OCSP_CrlID, 0, cid);

err:
	if (cid)
		OCSP_CRLID_free(cid);
	return x;
}

/*   AcceptableResponses ::= SEQUENCE OF OBJECT IDENTIFIER */
X509_EXTENSION *
OCSP_accept_responses_new(char **oids)
{
	int nid;
	STACK_OF(ASN1_OBJECT) *sk = NULL;
	ASN1_OBJECT *o = NULL;
	X509_EXTENSION *x = NULL;

	if (!(sk = sk_ASN1_OBJECT_new_null()))
		return NULL;
	while (oids && *oids) {
		if ((nid = OBJ_txt2nid(*oids)) != NID_undef &&
		    (o = OBJ_nid2obj(nid)))
			if (sk_ASN1_OBJECT_push(sk, o) == 0) {
				sk_ASN1_OBJECT_pop_free(sk, ASN1_OBJECT_free);
				return NULL;
			}
		oids++;
	}
	x = X509V3_EXT_i2d(NID_id_pkix_OCSP_acceptableResponses, 0, sk);
	sk_ASN1_OBJECT_pop_free(sk, ASN1_OBJECT_free);
	return x;
}

/*  ArchiveCutoff ::= GeneralizedTime */
X509_EXTENSION *
OCSP_archive_cutoff_new(char* tim)
{
	X509_EXTENSION *x = NULL;
	ASN1_GENERALIZEDTIME *gt = NULL;

	if (!(gt = ASN1_GENERALIZEDTIME_new()))
		return NULL;
	if (!(ASN1_GENERALIZEDTIME_set_string(gt, tim)))
		goto err;
	x = X509V3_EXT_i2d(NID_id_pkix_OCSP_archiveCutoff, 0, gt);

err:
	if (gt)
		ASN1_GENERALIZEDTIME_free(gt);
	return x;
}

/* per ACCESS_DESCRIPTION parameter are oids, of which there are currently
 * two--NID_ad_ocsp, NID_id_ad_caIssuers--and GeneralName value.  This
 * method forces NID_ad_ocsp and uniformResourceLocator [6] IA5String.
 */
X509_EXTENSION *
OCSP_url_svcloc_new(X509_NAME* issuer, char **urls)
{
	X509_EXTENSION *x = NULL;
	ASN1_IA5STRING *ia5 = NULL;
	OCSP_SERVICELOC *sloc = NULL;
	ACCESS_DESCRIPTION *ad = NULL;

	if (!(sloc = OCSP_SERVICELOC_new()))
		goto err;
	if (!(sloc->issuer = X509_NAME_dup(issuer)))
		goto err;
	if (urls && *urls &&
	    !(sloc->locator = sk_ACCESS_DESCRIPTION_new_null()))
		goto err;
	while (urls && *urls) {
		if (!(ad = ACCESS_DESCRIPTION_new()))
			goto err;
		if (!(ad->method = OBJ_nid2obj(NID_ad_OCSP)))
			goto err;
		if (!(ad->location = GENERAL_NAME_new()))
			goto err;
		if (!(ia5 = ASN1_IA5STRING_new()))
			goto err;
		if (!ASN1_STRING_set((ASN1_STRING*)ia5, *urls, -1))
			goto err;
		ad->location->type = GEN_URI;
		ad->location->d.ia5 = ia5;
		ia5 = NULL;
		if (!sk_ACCESS_DESCRIPTION_push(sloc->locator, ad))
			goto err;
		ad = NULL;
		urls++;
	}
	x = X509V3_EXT_i2d(NID_id_pkix_OCSP_serviceLocator, 0, sloc);

err:
	if (ia5)
		ASN1_IA5STRING_free(ia5);
	if (ad)
		ACCESS_DESCRIPTION_free(ad);
	if (sloc)
		OCSP_SERVICELOC_free(sloc);
	return x;
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: ocsp_ext.c,v 1.14 2015/07/19 18:29:31 miod Exp $ */
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 <stdlib.h>
66			#include <string.h>
67
68			#include <openssl/objects.h>
69			#include <openssl/ocsp.h>
70			#include <openssl/x509.h>
71			#include <openssl/x509v3.h>
72
73			/* Standard wrapper functions for extensions */
74
75			/* OCSP request extensions */
76
77			int
78			OCSP_REQUEST_get_ext_count(OCSP_REQUEST *x)
79			{
80			return X509v3_get_ext_count(x->tbsRequest->requestExtensions);
81			}
82
83			int
84			OCSP_REQUEST_get_ext_by_NID(OCSP_REQUEST *x, int nid, int lastpos)
85			{
86			return X509v3_get_ext_by_NID(x->tbsRequest->requestExtensions, nid,
87			lastpos);
88			}
89
90			int
91			OCSP_REQUEST_get_ext_by_OBJ(OCSP_REQUEST x, ASN1_OBJECT obj, int lastpos)
92			{
93			return X509v3_get_ext_by_OBJ(x->tbsRequest->requestExtensions, obj,
94			lastpos);
95			}
96
97			int
98			OCSP_REQUEST_get_ext_by_critical(OCSP_REQUEST *x, int crit, int lastpos)
99			{
100			return X509v3_get_ext_by_critical(x->tbsRequest->requestExtensions,
101			crit, lastpos);
102			}
103
104			X509_EXTENSION *
105			OCSP_REQUEST_get_ext(OCSP_REQUEST *x, int loc)
106			{
107			return X509v3_get_ext(x->tbsRequest->requestExtensions, loc);
108			}
109
110			X509_EXTENSION *
111			OCSP_REQUEST_delete_ext(OCSP_REQUEST *x, int loc)
112			{
113			return X509v3_delete_ext(x->tbsRequest->requestExtensions, loc);
114			}
115
116			void *
117			OCSP_REQUEST_get1_ext_d2i(OCSP_REQUEST x, int nid, int crit, int *idx)
118			{
119			return X509V3_get_d2i(x->tbsRequest->requestExtensions, nid, crit, idx);
120			}
121
122			int
123			OCSP_REQUEST_add1_ext_i2d(OCSP_REQUEST x, int nid, void value, int crit,
124			unsigned long flags)
125			{
126			return X509V3_add1_i2d(&x->tbsRequest->requestExtensions, nid, value,
127			crit, flags);
128			}
129
130			int
131			OCSP_REQUEST_add_ext(OCSP_REQUEST x, X509_EXTENSION ex, int loc)
132			{
133			return X509v3_add_ext(&(x->tbsRequest->requestExtensions), ex,
134			loc) != NULL;
135			}
136
137			/* Single extensions */
138
139			int
140			OCSP_ONEREQ_get_ext_count(OCSP_ONEREQ *x)
141			{
142			return X509v3_get_ext_count(x->singleRequestExtensions);
143			}
144
145			int
146			OCSP_ONEREQ_get_ext_by_NID(OCSP_ONEREQ *x, int nid, int lastpos)
147			{
148			return X509v3_get_ext_by_NID(x->singleRequestExtensions, nid, lastpos);
149			}
150
151			int
152			OCSP_ONEREQ_get_ext_by_OBJ(OCSP_ONEREQ x, ASN1_OBJECT obj, int lastpos)
153			{
154			return X509v3_get_ext_by_OBJ(x->singleRequestExtensions, obj, lastpos);
155			}
156
157			int
158			OCSP_ONEREQ_get_ext_by_critical(OCSP_ONEREQ *x, int crit, int lastpos)
159			{
160			return X509v3_get_ext_by_critical(x->singleRequestExtensions, crit,
161			lastpos);
162			}
163
164			X509_EXTENSION *
165			OCSP_ONEREQ_get_ext(OCSP_ONEREQ *x, int loc)
166			{
167			return X509v3_get_ext(x->singleRequestExtensions, loc);
168			}
169
170			X509_EXTENSION *
171			OCSP_ONEREQ_delete_ext(OCSP_ONEREQ *x, int loc)
172			{
173			return X509v3_delete_ext(x->singleRequestExtensions, loc);
174			}
175
176			void *
177			OCSP_ONEREQ_get1_ext_d2i(OCSP_ONEREQ x, int nid, int crit, int *idx)
178			{
179			return X509V3_get_d2i(x->singleRequestExtensions, nid, crit, idx);
180			}
181
182			int
183			OCSP_ONEREQ_add1_ext_i2d(OCSP_ONEREQ x, int nid, void value, int crit,
184			unsigned long flags)
185			{
186			return X509V3_add1_i2d(&x->singleRequestExtensions, nid, value, crit,
187			flags);
188			}
189
190			int
191			OCSP_ONEREQ_add_ext(OCSP_ONEREQ x, X509_EXTENSION ex, int loc)
192			{
193			return X509v3_add_ext(&(x->singleRequestExtensions), ex, loc) != NULL;
194			}
195
196			/* OCSP Basic response */
197
198			int
199			OCSP_BASICRESP_get_ext_count(OCSP_BASICRESP *x)
200			{
201			return X509v3_get_ext_count(x->tbsResponseData->responseExtensions);
202			}
203
204			int
205			OCSP_BASICRESP_get_ext_by_NID(OCSP_BASICRESP *x, int nid, int lastpos)
206			{
207			return X509v3_get_ext_by_NID(x->tbsResponseData->responseExtensions,
208			nid, lastpos);
209			}
210
211			int
212			OCSP_BASICRESP_get_ext_by_OBJ(OCSP_BASICRESP x, ASN1_OBJECT obj, int lastpos)
213			{
214			return X509v3_get_ext_by_OBJ(x->tbsResponseData->responseExtensions,
215			obj, lastpos);
216			}
217
218			int
219			OCSP_BASICRESP_get_ext_by_critical(OCSP_BASICRESP *x, int crit, int lastpos)
220			{
221			return X509v3_get_ext_by_critical(
222			x->tbsResponseData->responseExtensions, crit, lastpos);
223			}
224
225			X509_EXTENSION *
226			OCSP_BASICRESP_get_ext(OCSP_BASICRESP *x, int loc)
227			{
228			return X509v3_get_ext(x->tbsResponseData->responseExtensions, loc);
229			}
230
231			X509_EXTENSION *
232			OCSP_BASICRESP_delete_ext(OCSP_BASICRESP *x, int loc)
233			{
234			return X509v3_delete_ext(x->tbsResponseData->responseExtensions, loc);
235			}
236
237			void *
238			OCSP_BASICRESP_get1_ext_d2i(OCSP_BASICRESP x, int nid, int crit, int *idx)
239			{
240			return X509V3_get_d2i(x->tbsResponseData->responseExtensions, nid,
241			crit, idx);
242			}
243
244			int
245			OCSP_BASICRESP_add1_ext_i2d(OCSP_BASICRESP x, int nid, void value, int crit,
246			unsigned long flags)
247			{
248			return X509V3_add1_i2d(&x->tbsResponseData->responseExtensions, nid,
249			value, crit, flags);
250			}
251
252			int
253			OCSP_BASICRESP_add_ext(OCSP_BASICRESP x, X509_EXTENSION ex, int loc)
254			{
255			return X509v3_add_ext(&(x->tbsResponseData->responseExtensions), ex,
256			loc) != NULL;
257			}
258
259			/* OCSP single response extensions */
260
261			int
262			OCSP_SINGLERESP_get_ext_count(OCSP_SINGLERESP *x)
263			{
264			return X509v3_get_ext_count(x->singleExtensions);
265			}
266
267			int
268			OCSP_SINGLERESP_get_ext_by_NID(OCSP_SINGLERESP *x, int nid, int lastpos)
269			{
270			return X509v3_get_ext_by_NID(x->singleExtensions, nid, lastpos);
271			}
272
273			int
274			OCSP_SINGLERESP_get_ext_by_OBJ(OCSP_SINGLERESP x, ASN1_OBJECT obj,
275			int lastpos)
276			{
277			return X509v3_get_ext_by_OBJ(x->singleExtensions, obj, lastpos);
278			}
279
280			int
281			OCSP_SINGLERESP_get_ext_by_critical(OCSP_SINGLERESP *x, int crit, int lastpos)
282			{
283			return X509v3_get_ext_by_critical(x->singleExtensions, crit, lastpos);
284			}
285
286			X509_EXTENSION *
287			OCSP_SINGLERESP_get_ext(OCSP_SINGLERESP *x, int loc)
288			{
289			return X509v3_get_ext(x->singleExtensions, loc);
290			}
291
292			X509_EXTENSION *
293			OCSP_SINGLERESP_delete_ext(OCSP_SINGLERESP *x, int loc)
294			{
295			return X509v3_delete_ext(x->singleExtensions, loc);
296			}
297
298			void *
299			OCSP_SINGLERESP_get1_ext_d2i(OCSP_SINGLERESP x, int nid, int crit, int *idx)
300			{
301			return X509V3_get_d2i(x->singleExtensions, nid, crit, idx);
302			}
303
304			int
305			OCSP_SINGLERESP_add1_ext_i2d(OCSP_SINGLERESP x, int nid, void value, int crit,
306			unsigned long flags)
307			{
308			return X509V3_add1_i2d(&x->singleExtensions, nid, value, crit, flags);
309			}
310
311			int
312			OCSP_SINGLERESP_add_ext(OCSP_SINGLERESP x, X509_EXTENSION ex, int loc)
313			{
314			return X509v3_add_ext(&(x->singleExtensions), ex, loc) != NULL;
315			}
316
317			/* also CRL Entry Extensions */
318			#if 0
319			ASN1_STRING *
320			ASN1_STRING_encode(ASN1_STRING s, i2d_of_void i2d, void *data,
321			STACK_OF(ASN1_OBJECT) *sk)
322			{
323			int i;
324			unsigned char p, b = NULL;
325
326			if (data) {
327			if ((i = i2d(data, NULL)) <= 0)
328			goto err;
329			if (!(b = p = malloc(i)))
330			goto err;
331			if (i2d(data, &p) <= 0)
332			goto err;
333			} else if (sk) {
334			if ((i = i2d_ASN1_SET_OF_ASN1_OBJECT(sk, NULL,
335			(I2D_OF(ASN1_OBJECT))i2d, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL,
336			IS_SEQUENCE)) <= 0)
337			goto err;
338			if (!(b = p = malloc(i)))
339			goto err;
340			if (i2d_ASN1_SET_OF_ASN1_OBJECT(sk, &p,
341			(I2D_OF(ASN1_OBJECT))i2d, V_ASN1_SEQUENCE,
342			V_ASN1_UNIVERSAL, IS_SEQUENCE) <= 0)
343			goto err;
344			} else {
345			OCSPerr(OCSP_F_ASN1_STRING_ENCODE, OCSP_R_BAD_DATA);
346			goto err;
347			}
348			if (!s && !(s = ASN1_STRING_new()))
349			goto err;
350			if (!(ASN1_STRING_set(s, b, i)))
351			goto err;
352			free(b);
353			return s;
354
355			err:
356			free(b);
357			return NULL;
358			}
359			#endif
360
361			/* Nonce handling functions */
362
363			/* Add a nonce to an extension stack. A nonce can be specificed or if NULL
364			* a random nonce will be generated.
365			* Note: OpenSSL 0.9.7d and later create an OCTET STRING containing the
366			* nonce, previous versions used the raw nonce.
367			*/
368
369			static int
370			ocsp_add1_nonce(STACK_OF(X509_EXTENSION) *exts, unsigned char val, int len)
371			{
372			unsigned char *tmpval;
373			ASN1_OCTET_STRING os;
374			int ret = 0;
375
376			if (len <= 0)
377			len = OCSP_DEFAULT_NONCE_LENGTH;
378			/* Create the OCTET STRING manually by writing out the header and
379			* appending the content octets. This avoids an extra memory allocation
380			* operation in some cases. Applications should NOT do this because
381			* it relies on library internals.
382			*/
383			os.length = ASN1_object_size(0, len, V_ASN1_OCTET_STRING);
384			os.data = malloc(os.length);
385			if (os.data == NULL)
386			goto err;
387			tmpval = os.data;
388			ASN1_put_object(&tmpval, 0, len, V_ASN1_OCTET_STRING, V_ASN1_UNIVERSAL);
389			if (val)
390			memcpy(tmpval, val, len);
391			else
392			arc4random_buf(tmpval, len);
393			if (!X509V3_add1_i2d(exts, NID_id_pkix_OCSP_Nonce, &os, 0,
394			X509V3_ADD_REPLACE))
395			goto err;
396			ret = 1;
397
398			err:
399			free(os.data);
400			return ret;
401			}
402
403			/* Add nonce to an OCSP request */
404			int
405			OCSP_request_add1_nonce(OCSP_REQUEST req, unsigned char val, int len)
406			{
407			return ocsp_add1_nonce(&req->tbsRequest->requestExtensions, val, len);
408			}
409
410			/* Same as above but for a response */
411			int
412			OCSP_basic_add1_nonce(OCSP_BASICRESP resp, unsigned char val, int len)
413			{
414			return ocsp_add1_nonce(&resp->tbsResponseData->responseExtensions, val,
415			len);
416			}
417
418			/* Check nonce validity in a request and response.
419			* Return value reflects result:
420			* 1: nonces present and equal.
421			* 2: nonces both absent.
422			* 3: nonce present in response only.
423			* 0: nonces both present and not equal.
424			* -1: nonce in request only.
425			*
426			* For most responders clients can check return > 0.
427			* If responder doesn't handle nonces return != 0 may be
428			* necessary. return == 0 is always an error.
429			*/
430			int
431			OCSP_check_nonce(OCSP_REQUEST req, OCSP_BASICRESP bs)
432			{
433			/*
434			* Since we are only interested in the presence or absence of
435			* the nonce and comparing its value there is no need to use
436			* the X509V3 routines: this way we can avoid them allocating an
437			* ASN1_OCTET_STRING structure for the value which would be
438			* freed immediately anyway.
439			*/
440			int req_idx, resp_idx;
441			X509_EXTENSION req_ext, resp_ext;
442
443			req_idx = OCSP_REQUEST_get_ext_by_NID(req, NID_id_pkix_OCSP_Nonce, -1);
444			resp_idx = OCSP_BASICRESP_get_ext_by_NID(bs,
445			NID_id_pkix_OCSP_Nonce, -1);
446			/* Check both absent */
447			if (req_idx < 0 && resp_idx < 0)
448			return 2;
449			/* Check in request only */
450			if (req_idx >= 0 && resp_idx < 0)
451			return -1;
452			/* Check in response but not request */
453			if (req_idx < 0 && resp_idx >= 0)
454			return 3;
455			/* Otherwise nonce in request and response so retrieve the extensions */
456			req_ext = OCSP_REQUEST_get_ext(req, req_idx);
457			resp_ext = OCSP_BASICRESP_get_ext(bs, resp_idx);
458			if (ASN1_OCTET_STRING_cmp(req_ext->value, resp_ext->value))
459			return 0;
460			return 1;
461			}
462
463			/* Copy the nonce value (if any) from an OCSP request to
464			* a response.
465			*/
466			int
467			OCSP_copy_nonce(OCSP_BASICRESP resp, OCSP_REQUEST req)
468			{
469			X509_EXTENSION *req_ext;
470			int req_idx;
471
472			/* Check for nonce in request */
473			req_idx = OCSP_REQUEST_get_ext_by_NID(req, NID_id_pkix_OCSP_Nonce, -1);
474			/* If no nonce that's OK */
475			if (req_idx < 0)
476			return 2;
477			req_ext = OCSP_REQUEST_get_ext(req, req_idx);
478			return OCSP_BASICRESP_add_ext(resp, req_ext, -1);
479			}
480
481			X509_EXTENSION *
482			OCSP_crlID_new(char url, long n, char *tim)
483			{
484			X509_EXTENSION *x = NULL;
485			OCSP_CRLID *cid = NULL;
486
487			if (!(cid = OCSP_CRLID_new()))
488			goto err;
489			if (url) {
490			if (!(cid->crlUrl = ASN1_IA5STRING_new()))
491			goto err;
492			if (!(ASN1_STRING_set(cid->crlUrl, url, -1)))
493			goto err;
494			}
495			if (n) {
496			if (!(cid->crlNum = ASN1_INTEGER_new()))
497			goto err;
498			if (!(ASN1_INTEGER_set(cid->crlNum, *n)))
499			goto err;
500			}
501			if (tim) {
502			if (!(cid->crlTime = ASN1_GENERALIZEDTIME_new()))
503			goto err;
504			if (!(ASN1_GENERALIZEDTIME_set_string(cid->crlTime, tim)))
505			goto err;
506			}
507			x = X509V3_EXT_i2d(NID_id_pkix_OCSP_CrlID, 0, cid);
508
509			err:
510			if (cid)
511			OCSP_CRLID_free(cid);
512			return x;
513			}
514
515			/* AcceptableResponses ::= SEQUENCE OF OBJECT IDENTIFIER */
516			X509_EXTENSION *
517			OCSP_accept_responses_new(char **oids)
518			{
519			int nid;
520			STACK_OF(ASN1_OBJECT) *sk = NULL;
521			ASN1_OBJECT *o = NULL;
522			X509_EXTENSION *x = NULL;
523
524			if (!(sk = sk_ASN1_OBJECT_new_null()))
525			return NULL;
526			while (oids && *oids) {
527			if ((nid = OBJ_txt2nid(*oids)) != NID_undef &&
528			(o = OBJ_nid2obj(nid)))
529			if (sk_ASN1_OBJECT_push(sk, o) == 0) {
530			sk_ASN1_OBJECT_pop_free(sk, ASN1_OBJECT_free);
531			return NULL;
532			}
533			oids++;
534			}
535			x = X509V3_EXT_i2d(NID_id_pkix_OCSP_acceptableResponses, 0, sk);
536			sk_ASN1_OBJECT_pop_free(sk, ASN1_OBJECT_free);
537			return x;
538			}
539
540			/* ArchiveCutoff ::= GeneralizedTime */
541			X509_EXTENSION *
542			OCSP_archive_cutoff_new(char* tim)
543			{
544			X509_EXTENSION *x = NULL;
545			ASN1_GENERALIZEDTIME *gt = NULL;
546
547			if (!(gt = ASN1_GENERALIZEDTIME_new()))
548			return NULL;
549			if (!(ASN1_GENERALIZEDTIME_set_string(gt, tim)))
550			goto err;
551			x = X509V3_EXT_i2d(NID_id_pkix_OCSP_archiveCutoff, 0, gt);
552
553			err:
554			if (gt)
555			ASN1_GENERALIZEDTIME_free(gt);
556			return x;
557			}
558
559			/* per ACCESS_DESCRIPTION parameter are oids, of which there are currently
560			* two--NID_ad_ocsp, NID_id_ad_caIssuers--and GeneralName value. This
561			* method forces NID_ad_ocsp and uniformResourceLocator [6] IA5String.
562			*/
563			X509_EXTENSION *
564			OCSP_url_svcloc_new(X509_NAME* issuer, char **urls)
565			{
566			X509_EXTENSION *x = NULL;
567			ASN1_IA5STRING *ia5 = NULL;
568			OCSP_SERVICELOC *sloc = NULL;
569			ACCESS_DESCRIPTION *ad = NULL;
570
571			if (!(sloc = OCSP_SERVICELOC_new()))
572			goto err;
573			if (!(sloc->issuer = X509_NAME_dup(issuer)))
574			goto err;
575			if (urls && *urls &&
576			!(sloc->locator = sk_ACCESS_DESCRIPTION_new_null()))
577			goto err;
578			while (urls && *urls) {
579			if (!(ad = ACCESS_DESCRIPTION_new()))
580			goto err;
581			if (!(ad->method = OBJ_nid2obj(NID_ad_OCSP)))
582			goto err;
583			if (!(ad->location = GENERAL_NAME_new()))
584			goto err;
585			if (!(ia5 = ASN1_IA5STRING_new()))
586			goto err;
587			if (!ASN1_STRING_set((ASN1_STRING)ia5, urls, -1))
588			goto err;
589			ad->location->type = GEN_URI;
590			ad->location->d.ia5 = ia5;
591			ia5 = NULL;
592			if (!sk_ACCESS_DESCRIPTION_push(sloc->locator, ad))
593			goto err;
594			ad = NULL;
595			urls++;
596			}
597			x = X509V3_EXT_i2d(NID_id_pkix_OCSP_serviceLocator, 0, sloc);
598
599			err:
600			if (ia5)
601			ASN1_IA5STRING_free(ia5);
602			if (ad)
603			ACCESS_DESCRIPTION_free(ad);
604			if (sloc)
605			OCSP_SERVICELOC_free(sloc);
606			return x;
607			}