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1 /* v3_ocsp.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3  * project 1999.
4  */
5 /* ====================================================================
6  * Copyright (c) 1999 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  *    licensing@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 #ifndef OPENSSL_NO_OCSP
60 
61 #include <stdio.h>
62 #include "cryptlib.h"
63 #include <openssl/conf.h>
64 #include <openssl/asn1.h>
65 #include <openssl/ocsp.h>
66 #include <openssl/x509v3.h>
67 
68 /* OCSP extensions and a couple of CRL entry extensions
69  */
70 
71 static int i2r_ocsp_crlid(const X509V3_EXT_METHOD *method, void *nonce,
72 			  BIO *out, int indent);
73 static int i2r_ocsp_acutoff(const X509V3_EXT_METHOD *method, void *nonce,
74 			    BIO *out, int indent);
75 static int i2r_object(const X509V3_EXT_METHOD *method, void *obj, BIO *out,
76 		      int indent);
77 
78 static void *ocsp_nonce_new(void);
79 static int i2d_ocsp_nonce(void *a, unsigned char **pp);
80 static void *d2i_ocsp_nonce(void *a, const unsigned char **pp, long length);
81 static void ocsp_nonce_free(void *a);
82 static int i2r_ocsp_nonce(const X509V3_EXT_METHOD *method, void *nonce,
83 			  BIO *out, int indent);
84 
85 static int i2r_ocsp_nocheck(const X509V3_EXT_METHOD *method,
86 			    void *nocheck, BIO *out, int indent);
87 static void *s2i_ocsp_nocheck(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
88 			      const char *str);
89 static int i2r_ocsp_serviceloc(const X509V3_EXT_METHOD *method, void *in,
90 			       BIO *bp, int ind);
91 
92 const X509V3_EXT_METHOD v3_ocsp_crlid = {
93 	NID_id_pkix_OCSP_CrlID, 0, ASN1_ITEM_ref(OCSP_CRLID),
94 	0,0,0,0,
95 	0,0,
96 	0,0,
97 	i2r_ocsp_crlid,0,
98 	NULL
99 };
100 
101 const X509V3_EXT_METHOD v3_ocsp_acutoff = {
102 	NID_id_pkix_OCSP_archiveCutoff, 0, ASN1_ITEM_ref(ASN1_GENERALIZEDTIME),
103 	0,0,0,0,
104 	0,0,
105 	0,0,
106 	i2r_ocsp_acutoff,0,
107 	NULL
108 };
109 
110 const X509V3_EXT_METHOD v3_crl_invdate = {
111 	NID_invalidity_date, 0, ASN1_ITEM_ref(ASN1_GENERALIZEDTIME),
112 	0,0,0,0,
113 	0,0,
114 	0,0,
115 	i2r_ocsp_acutoff,0,
116 	NULL
117 };
118 
119 const X509V3_EXT_METHOD v3_crl_hold = {
120 	NID_hold_instruction_code, 0, ASN1_ITEM_ref(ASN1_OBJECT),
121 	0,0,0,0,
122 	0,0,
123 	0,0,
124 	i2r_object,0,
125 	NULL
126 };
127 
128 const X509V3_EXT_METHOD v3_ocsp_nonce = {
129 	NID_id_pkix_OCSP_Nonce, 0, NULL,
130 	ocsp_nonce_new,
131 	ocsp_nonce_free,
132 	d2i_ocsp_nonce,
133 	i2d_ocsp_nonce,
134 	0,0,
135 	0,0,
136 	i2r_ocsp_nonce,0,
137 	NULL
138 };
139 
140 const X509V3_EXT_METHOD v3_ocsp_nocheck = {
141 	NID_id_pkix_OCSP_noCheck, 0, ASN1_ITEM_ref(ASN1_NULL),
142 	0,0,0,0,
143 	0,s2i_ocsp_nocheck,
144 	0,0,
145 	i2r_ocsp_nocheck,0,
146 	NULL
147 };
148 
149 const X509V3_EXT_METHOD v3_ocsp_serviceloc = {
150 	NID_id_pkix_OCSP_serviceLocator, 0, ASN1_ITEM_ref(OCSP_SERVICELOC),
151 	0,0,0,0,
152 	0,0,
153 	0,0,
154 	i2r_ocsp_serviceloc,0,
155 	NULL
156 };
157 
i2r_ocsp_crlid(const X509V3_EXT_METHOD * method,void * in,BIO * bp,int ind)158 static int i2r_ocsp_crlid(const X509V3_EXT_METHOD *method, void *in, BIO *bp,
159 			  int ind)
160 {
161 	OCSP_CRLID *a = in;
162 	if (a->crlUrl)
163 	        {
164 		if (BIO_printf(bp, "%*scrlUrl: ", ind, "") <= 0) goto err;
165 		if (!ASN1_STRING_print(bp, (ASN1_STRING*)a->crlUrl)) goto err;
166 		if (BIO_write(bp, "\n", 1) <= 0) goto err;
167 		}
168 	if (a->crlNum)
169 	        {
170 		if (BIO_printf(bp, "%*scrlNum: ", ind, "") <= 0) goto err;
171 		if (i2a_ASN1_INTEGER(bp, a->crlNum) <= 0) goto err;
172 		if (BIO_write(bp, "\n", 1) <= 0) goto err;
173 		}
174 	if (a->crlTime)
175 	        {
176 		if (BIO_printf(bp, "%*scrlTime: ", ind, "") <= 0) goto err;
177 		if (!ASN1_GENERALIZEDTIME_print(bp, a->crlTime)) goto err;
178 		if (BIO_write(bp, "\n", 1) <= 0) goto err;
179 		}
180 	return 1;
181 	err:
182 	return 0;
183 }
184 
i2r_ocsp_acutoff(const X509V3_EXT_METHOD * method,void * cutoff,BIO * bp,int ind)185 static int i2r_ocsp_acutoff(const X509V3_EXT_METHOD *method, void *cutoff,
186 			    BIO *bp, int ind)
187 {
188 	if (BIO_printf(bp, "%*s", ind, "") <= 0) return 0;
189 	if(!ASN1_GENERALIZEDTIME_print(bp, cutoff)) return 0;
190 	return 1;
191 }
192 
193 
i2r_object(const X509V3_EXT_METHOD * method,void * oid,BIO * bp,int ind)194 static int i2r_object(const X509V3_EXT_METHOD *method, void *oid, BIO *bp,
195 		      int ind)
196 {
197 	if (BIO_printf(bp, "%*s", ind, "") <= 0) return 0;
198 	if(i2a_ASN1_OBJECT(bp, oid) <= 0) return 0;
199 	return 1;
200 }
201 
202 /* OCSP nonce. This is needs special treatment because it doesn't have
203  * an ASN1 encoding at all: it just contains arbitrary data.
204  */
205 
ocsp_nonce_new(void)206 static void *ocsp_nonce_new(void)
207 {
208 	return ASN1_OCTET_STRING_new();
209 }
210 
i2d_ocsp_nonce(void * a,unsigned char ** pp)211 static int i2d_ocsp_nonce(void *a, unsigned char **pp)
212 {
213 	ASN1_OCTET_STRING *os = a;
214 	if(pp) {
215 		memcpy(*pp, os->data, os->length);
216 		*pp += os->length;
217 	}
218 	return os->length;
219 }
220 
d2i_ocsp_nonce(void * a,const unsigned char ** pp,long length)221 static void *d2i_ocsp_nonce(void *a, const unsigned char **pp, long length)
222 {
223 	ASN1_OCTET_STRING *os, **pos;
224 	pos = a;
225 	if(!pos || !*pos) os = ASN1_OCTET_STRING_new();
226 	else os = *pos;
227 	if(!ASN1_OCTET_STRING_set(os, *pp, length)) goto err;
228 
229 	*pp += length;
230 
231 	if(pos) *pos = os;
232 	return os;
233 
234 	err:
235 	if(os && (!pos || (*pos != os))) M_ASN1_OCTET_STRING_free(os);
236 	OCSPerr(OCSP_F_D2I_OCSP_NONCE, ERR_R_MALLOC_FAILURE);
237 	return NULL;
238 }
239 
ocsp_nonce_free(void * a)240 static void ocsp_nonce_free(void *a)
241 {
242 	M_ASN1_OCTET_STRING_free(a);
243 }
244 
i2r_ocsp_nonce(const X509V3_EXT_METHOD * method,void * nonce,BIO * out,int indent)245 static int i2r_ocsp_nonce(const X509V3_EXT_METHOD *method, void *nonce,
246 			  BIO *out, int indent)
247 {
248 	if(BIO_printf(out, "%*s", indent, "") <= 0) return 0;
249 	if(i2a_ASN1_STRING(out, nonce, V_ASN1_OCTET_STRING) <= 0) return 0;
250 	return 1;
251 }
252 
253 /* Nocheck is just a single NULL. Don't print anything and always set it */
254 
i2r_ocsp_nocheck(const X509V3_EXT_METHOD * method,void * nocheck,BIO * out,int indent)255 static int i2r_ocsp_nocheck(const X509V3_EXT_METHOD *method, void *nocheck,
256 			    BIO *out, int indent)
257 {
258 	return 1;
259 }
260 
s2i_ocsp_nocheck(const X509V3_EXT_METHOD * method,X509V3_CTX * ctx,const char * str)261 static void *s2i_ocsp_nocheck(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
262 			      const char *str)
263 {
264 	return ASN1_NULL_new();
265 }
266 
i2r_ocsp_serviceloc(const X509V3_EXT_METHOD * method,void * in,BIO * bp,int ind)267 static int i2r_ocsp_serviceloc(const X509V3_EXT_METHOD *method, void *in,
268 			       BIO *bp, int ind)
269         {
270 	int i;
271 	OCSP_SERVICELOC *a = in;
272 	ACCESS_DESCRIPTION *ad;
273 
274         if (BIO_printf(bp, "%*sIssuer: ", ind, "") <= 0) goto err;
275         if (X509_NAME_print_ex(bp, a->issuer, 0, XN_FLAG_ONELINE) <= 0) goto err;
276 	for (i = 0; i < sk_ACCESS_DESCRIPTION_num(a->locator); i++)
277 	        {
278 				ad = sk_ACCESS_DESCRIPTION_value(a->locator,i);
279 				if (BIO_printf(bp, "\n%*s", (2*ind), "") <= 0)
280 					goto err;
281 				if(i2a_ASN1_OBJECT(bp, ad->method) <= 0) goto err;
282 				if(BIO_puts(bp, " - ") <= 0) goto err;
283 				if(GENERAL_NAME_print(bp, ad->location) <= 0) goto err;
284 		}
285 	return 1;
286 err:
287 	return 0;
288 	}
289 #endif
290