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 #include "cryptlib.h"
61 #include <openssl/conf.h>
62 #include <openssl/asn1.h>
63 #include <openssl/asn1t.h>
64 #include <openssl/x509v3.h>
65
66 /* Support for Thawte strong extranet extension */
67
68 #define SXNET_TEST
69
70 static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out, int indent);
71 #ifdef SXNET_TEST
72 static SXNET * sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
73 STACK_OF(CONF_VALUE) *nval);
74 #endif
75 const X509V3_EXT_METHOD v3_sxnet = {
76 NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET),
77 0,0,0,0,
78 0,0,
79 0,
80 #ifdef SXNET_TEST
81 (X509V3_EXT_V2I)sxnet_v2i,
82 #else
83 0,
84 #endif
85 (X509V3_EXT_I2R)sxnet_i2r,
86 0,
87 NULL
88 };
89
90 ASN1_SEQUENCE(SXNETID) = {
91 ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER),
92 ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING)
93 } ASN1_SEQUENCE_END(SXNETID)
94
95 IMPLEMENT_ASN1_FUNCTIONS(SXNETID)
96
97 ASN1_SEQUENCE(SXNET) = {
98 ASN1_SIMPLE(SXNET, version, ASN1_INTEGER),
99 ASN1_SEQUENCE_OF(SXNET, ids, SXNETID)
100 } ASN1_SEQUENCE_END(SXNET)
101
102 IMPLEMENT_ASN1_FUNCTIONS(SXNET)
103
104 static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
105 int indent)
106 {
107 long v;
108 char *tmp;
109 SXNETID *id;
110 int i;
111 v = ASN1_INTEGER_get(sx->version);
112 BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", v + 1, v);
113 for(i = 0; i < sk_SXNETID_num(sx->ids); i++) {
114 id = sk_SXNETID_value(sx->ids, i);
115 tmp = i2s_ASN1_INTEGER(NULL, id->zone);
116 BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp);
117 OPENSSL_free(tmp);
118 M_ASN1_OCTET_STRING_print(out, id->user);
119 }
120 return 1;
121 }
122
123 #ifdef SXNET_TEST
124
125 /* NBB: this is used for testing only. It should *not* be used for anything
126 * else because it will just take static IDs from the configuration file and
127 * they should really be separate values for each user.
128 */
129
130
131 static SXNET * sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
132 STACK_OF(CONF_VALUE) *nval)
133 {
134 CONF_VALUE *cnf;
135 SXNET *sx = NULL;
136 int i;
137 for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
138 cnf = sk_CONF_VALUE_value(nval, i);
139 if(!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1))
140 return NULL;
141 }
142 return sx;
143 }
144
145
146 #endif
147
148 /* Strong Extranet utility functions */
149
150 /* Add an id given the zone as an ASCII number */
151
152 int SXNET_add_id_asc(SXNET **psx, char *zone, char *user,
153 int userlen)
154 {
155 ASN1_INTEGER *izone = NULL;
156 if(!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
157 X509V3err(X509V3_F_SXNET_ADD_ID_ASC,X509V3_R_ERROR_CONVERTING_ZONE);
158 return 0;
159 }
160 return SXNET_add_id_INTEGER(psx, izone, user, userlen);
161 }
162
163 /* Add an id given the zone as an unsigned long */
164
165 int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, char *user,
166 int userlen)
167 {
168 ASN1_INTEGER *izone = NULL;
169 if(!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
170 X509V3err(X509V3_F_SXNET_ADD_ID_ULONG,ERR_R_MALLOC_FAILURE);
171 M_ASN1_INTEGER_free(izone);
172 return 0;
173 }
174 return SXNET_add_id_INTEGER(psx, izone, user, userlen);
175
176 }
177
178 /* Add an id given the zone as an ASN1_INTEGER.
179 * Note this version uses the passed integer and doesn't make a copy so don't
180 * free it up afterwards.
181 */
182
183 int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, char *user,
184 int userlen)
185 {
186 SXNET *sx = NULL;
187 SXNETID *id = NULL;
188 if(!psx || !zone || !user) {
189 X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,X509V3_R_INVALID_NULL_ARGUMENT);
190 return 0;
191 }
192 if(userlen == -1) userlen = strlen(user);
193 if(userlen > 64) {
194 X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,X509V3_R_USER_TOO_LONG);
195 return 0;
196 }
197 if(!*psx) {
198 if(!(sx = SXNET_new())) goto err;
199 if(!ASN1_INTEGER_set(sx->version, 0)) goto err;
200 *psx = sx;
201 } else sx = *psx;
202 if(SXNET_get_id_INTEGER(sx, zone)) {
203 X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,X509V3_R_DUPLICATE_ZONE_ID);
204 return 0;
205 }
206
207 if(!(id = SXNETID_new())) goto err;
208 if(userlen == -1) userlen = strlen(user);
209
210 if(!M_ASN1_OCTET_STRING_set(id->user, user, userlen)) goto err;
211 if(!sk_SXNETID_push(sx->ids, id)) goto err;
212 id->zone = zone;
213 return 1;
214
215 err:
216 X509V3err(X509V3_F_SXNET_ADD_ID_INTEGER,ERR_R_MALLOC_FAILURE);
217 SXNETID_free(id);
218 SXNET_free(sx);
219 *psx = NULL;
220 return 0;
221 }
222
223 ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone)
224 {
225 ASN1_INTEGER *izone = NULL;
226 ASN1_OCTET_STRING *oct;
227 if(!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
228 X509V3err(X509V3_F_SXNET_GET_ID_ASC,X509V3_R_ERROR_CONVERTING_ZONE);
229 return NULL;
230 }
231 oct = SXNET_get_id_INTEGER(sx, izone);
232 M_ASN1_INTEGER_free(izone);
233 return oct;
234 }
235
236 ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone)
237 {
238 ASN1_INTEGER *izone = NULL;
239 ASN1_OCTET_STRING *oct;
240 if(!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
241 X509V3err(X509V3_F_SXNET_GET_ID_ULONG,ERR_R_MALLOC_FAILURE);
242 M_ASN1_INTEGER_free(izone);
243 return NULL;
244 }
245 oct = SXNET_get_id_INTEGER(sx, izone);
246 M_ASN1_INTEGER_free(izone);
247 return oct;
248 }
249
250 ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone)
251 {
252 SXNETID *id;
253 int i;
254 for(i = 0; i < sk_SXNETID_num(sx->ids); i++) {
255 id = sk_SXNETID_value(sx->ids, i);
256 if(!M_ASN1_INTEGER_cmp(id->zone, zone)) return id->user;
257 }
258 return NULL;
259 }
260
261 IMPLEMENT_STACK_OF(SXNETID)
262 IMPLEMENT_ASN1_SET_OF(SXNETID)