1 /* v3_sxnet.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 #include <stdio.h>
60
61 #include <openssl/asn1.h>
62 #include <openssl/asn1t.h>
63 #include <openssl/conf.h>
64 #include <openssl/err.h>
65 #include <openssl/mem.h>
66 #include <openssl/obj.h>
67 #include <openssl/x509v3.h>
68
69
70 /* Support for Thawte strong extranet extension */
71
72 #define SXNET_TEST
73
74 static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out, int indent);
75 #ifdef SXNET_TEST
76 static SXNET * sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
77 STACK_OF(CONF_VALUE) *nval);
78 #endif
79 const X509V3_EXT_METHOD v3_sxnet = {
80 NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET),
81 0,0,0,0,
82 0,0,
83 0,
84 #ifdef SXNET_TEST
85 (X509V3_EXT_V2I)sxnet_v2i,
86 #else
87 0,
88 #endif
89 (X509V3_EXT_I2R)sxnet_i2r,
90 0,
91 NULL
92 };
93
94 ASN1_SEQUENCE(SXNETID) = {
95 ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER),
96 ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING)
97 } ASN1_SEQUENCE_END(SXNETID)
98
99 IMPLEMENT_ASN1_FUNCTIONS(SXNETID)
100
101 ASN1_SEQUENCE(SXNET) = {
102 ASN1_SIMPLE(SXNET, version, ASN1_INTEGER),
103 ASN1_SEQUENCE_OF(SXNET, ids, SXNETID)
104 } ASN1_SEQUENCE_END(SXNET)
105
106 IMPLEMENT_ASN1_FUNCTIONS(SXNET)
107
108 static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
109 int indent)
110 {
111 long v;
112 char *tmp;
113 SXNETID *id;
114 size_t i;
115 v = ASN1_INTEGER_get(sx->version);
116 BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", v + 1, v);
117 for(i = 0; i < sk_SXNETID_num(sx->ids); i++) {
118 id = sk_SXNETID_value(sx->ids, i);
119 tmp = i2s_ASN1_INTEGER(NULL, id->zone);
120 BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp);
121 OPENSSL_free(tmp);
122 M_ASN1_OCTET_STRING_print(out, id->user);
123 }
124 return 1;
125 }
126
127 #ifdef SXNET_TEST
128
129 /* NBB: this is used for testing only. It should *not* be used for anything
130 * else because it will just take static IDs from the configuration file and
131 * they should really be separate values for each user.
132 */
133
134
sxnet_v2i(X509V3_EXT_METHOD * method,X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* nval)135 static SXNET * sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
136 STACK_OF(CONF_VALUE) *nval)
137 {
138 CONF_VALUE *cnf;
139 SXNET *sx = NULL;
140 size_t i;
141 for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
142 cnf = sk_CONF_VALUE_value(nval, i);
143 if(!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1))
144 return NULL;
145 }
146 return sx;
147 }
148
149
150 #endif
151
152 /* Strong Extranet utility functions */
153
154 /* Add an id given the zone as an ASCII number */
155
SXNET_add_id_asc(SXNET ** psx,char * zone,char * user,int userlen)156 int SXNET_add_id_asc(SXNET **psx, char *zone, char *user,
157 int userlen)
158 {
159 ASN1_INTEGER *izone = NULL;
160 if(!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
161 OPENSSL_PUT_ERROR(X509V3, SXNET_add_id_asc, X509V3_R_ERROR_CONVERTING_ZONE);
162 return 0;
163 }
164 return SXNET_add_id_INTEGER(psx, izone, user, userlen);
165 }
166
167 /* Add an id given the zone as an unsigned long */
168
SXNET_add_id_ulong(SXNET ** psx,unsigned long lzone,char * user,int userlen)169 int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, char *user,
170 int userlen)
171 {
172 ASN1_INTEGER *izone = NULL;
173 if(!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
174 OPENSSL_PUT_ERROR(X509V3, SXNET_add_id_ulong, ERR_R_MALLOC_FAILURE);
175 M_ASN1_INTEGER_free(izone);
176 return 0;
177 }
178 return SXNET_add_id_INTEGER(psx, izone, user, userlen);
179
180 }
181
182 /* Add an id given the zone as an ASN1_INTEGER.
183 * Note this version uses the passed integer and doesn't make a copy so don't
184 * free it up afterwards.
185 */
186
SXNET_add_id_INTEGER(SXNET ** psx,ASN1_INTEGER * zone,char * user,int userlen)187 int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, char *user,
188 int userlen)
189 {
190 SXNET *sx = NULL;
191 SXNETID *id = NULL;
192 if(!psx || !zone || !user) {
193 OPENSSL_PUT_ERROR(X509V3, SXNET_add_id_INTEGER, X509V3_R_INVALID_NULL_ARGUMENT);
194 return 0;
195 }
196 if(userlen == -1) userlen = strlen(user);
197 if(userlen > 64) {
198 OPENSSL_PUT_ERROR(X509V3, SXNET_add_id_INTEGER, X509V3_R_USER_TOO_LONG);
199 return 0;
200 }
201 if(!*psx) {
202 if(!(sx = SXNET_new())) goto err;
203 if(!ASN1_INTEGER_set(sx->version, 0)) goto err;
204 *psx = sx;
205 } else sx = *psx;
206 if(SXNET_get_id_INTEGER(sx, zone)) {
207 OPENSSL_PUT_ERROR(X509V3, SXNET_add_id_INTEGER, X509V3_R_DUPLICATE_ZONE_ID);
208 return 0;
209 }
210
211 if(!(id = SXNETID_new())) goto err;
212 if(userlen == -1) userlen = strlen(user);
213
214 if(!M_ASN1_OCTET_STRING_set(id->user, user, userlen)) goto err;
215 if(!sk_SXNETID_push(sx->ids, id)) goto err;
216 id->zone = zone;
217 return 1;
218
219 err:
220 OPENSSL_PUT_ERROR(X509V3, SXNET_add_id_INTEGER, ERR_R_MALLOC_FAILURE);
221 SXNETID_free(id);
222 SXNET_free(sx);
223 *psx = NULL;
224 return 0;
225 }
226
SXNET_get_id_asc(SXNET * sx,char * zone)227 ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone)
228 {
229 ASN1_INTEGER *izone = NULL;
230 ASN1_OCTET_STRING *oct;
231 if(!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
232 OPENSSL_PUT_ERROR(X509V3, SXNET_get_id_asc, X509V3_R_ERROR_CONVERTING_ZONE);
233 return NULL;
234 }
235 oct = SXNET_get_id_INTEGER(sx, izone);
236 M_ASN1_INTEGER_free(izone);
237 return oct;
238 }
239
SXNET_get_id_ulong(SXNET * sx,unsigned long lzone)240 ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone)
241 {
242 ASN1_INTEGER *izone = NULL;
243 ASN1_OCTET_STRING *oct;
244 if(!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
245 OPENSSL_PUT_ERROR(X509V3, SXNET_get_id_ulong, ERR_R_MALLOC_FAILURE);
246 M_ASN1_INTEGER_free(izone);
247 return NULL;
248 }
249 oct = SXNET_get_id_INTEGER(sx, izone);
250 M_ASN1_INTEGER_free(izone);
251 return oct;
252 }
253
SXNET_get_id_INTEGER(SXNET * sx,ASN1_INTEGER * zone)254 ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone)
255 {
256 SXNETID *id;
257 size_t i;
258 for(i = 0; i < sk_SXNETID_num(sx->ids); i++) {
259 id = sk_SXNETID_value(sx->ids, i);
260 if(!M_ASN1_INTEGER_cmp(id->zone, zone)) return id->user;
261 }
262 return NULL;
263 }
264
265 IMPLEMENT_ASN1_SET_OF(SXNETID)
266