1/* v3_sxnet.c */
2/*
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
4 * 1999.
5 */
6/* ====================================================================
7 * Copyright (c) 1999 The OpenSSL Project. All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 *
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 *
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
19 * distribution.
20 *
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25 *
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
30 *
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
34 *
35 * 6. Redistributions of any form whatsoever must retain the following
36 * acknowledgment:
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39 *
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
53 *
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
57 *
58 */
59
60#include <stdio.h>
61#include <string.h>
62
63#include <openssl/asn1.h>
64#include <openssl/asn1t.h>
65#include <openssl/conf.h>
66#include <openssl/err.h>
67#include <openssl/mem.h>
68#include <openssl/obj.h>
69#include <openssl/x509v3.h>
70
71/* Support for Thawte strong extranet extension */
72
73#define SXNET_TEST
74
75static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
76 int indent);
77#ifdef SXNET_TEST
78static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
79 STACK_OF(CONF_VALUE) *nval);
80#endif
81const X509V3_EXT_METHOD v3_sxnet = {
82 NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET),
83 0, 0, 0, 0,
84 0, 0,
85 0,
86#ifdef SXNET_TEST
87 (X509V3_EXT_V2I)sxnet_v2i,
88#else
89 0,
90#endif
91 (X509V3_EXT_I2R)sxnet_i2r,
92 0,
93 NULL
94};
95
96ASN1_SEQUENCE(SXNETID) = {
97 ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER),
98 ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING)
99} ASN1_SEQUENCE_END(SXNETID)
100
101IMPLEMENT_ASN1_FUNCTIONS(SXNETID)
102
103ASN1_SEQUENCE(SXNET) = {
104 ASN1_SIMPLE(SXNET, version, ASN1_INTEGER),
105 ASN1_SEQUENCE_OF(SXNET, ids, SXNETID)
106} ASN1_SEQUENCE_END(SXNET)
107
108IMPLEMENT_ASN1_FUNCTIONS(SXNET)
109
110static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
111 int indent)
112{
113 long v;
114 char *tmp;
115 SXNETID *id;
116 size_t i;
117 v = ASN1_INTEGER_get(sx->version);
118 BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", v + 1, v);
119 for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
120 id = sk_SXNETID_value(sx->ids, i);
121 tmp = i2s_ASN1_INTEGER(NULL, id->zone);
122 BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp);
123 OPENSSL_free(tmp);
124 M_ASN1_OCTET_STRING_print(out, id->user);
125 }
126 return 1;
127}
128
129#ifdef SXNET_TEST
130
131/*
132 * NBB: this is used for testing only. It should *not* be used for anything
133 * else because it will just take static IDs from the configuration file and
134 * they should really be separate values for each user.
135 */
136
137static SXNET *sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
138 STACK_OF(CONF_VALUE) *nval)
139{
140 CONF_VALUE *cnf;
141 SXNET *sx = NULL;
142 size_t i;
143 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
144 cnf = sk_CONF_VALUE_value(nval, i);
145 if (!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1))
146 return NULL;
147 }
148 return sx;
149}
150
151#endif
152
153/* Strong Extranet utility functions */
154
155/* Add an id given the zone as an ASCII number */
156
157int SXNET_add_id_asc(SXNET **psx, char *zone, char *user, int userlen)
158{
159 ASN1_INTEGER *izone = NULL;
160 if (!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
161 OPENSSL_PUT_ERROR(X509V3, 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
169int 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, 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/*
183 * Add an id given the zone as an ASN1_INTEGER. Note this version uses the
184 * passed integer and doesn't make a copy so don't free it up afterwards.
185 */
186
187int 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, X509V3_R_INVALID_NULL_ARGUMENT);
194 return 0;
195 }
196 if (userlen == -1)
197 userlen = strlen(user);
198 if (userlen > 64) {
199 OPENSSL_PUT_ERROR(X509V3, X509V3_R_USER_TOO_LONG);
200 return 0;
201 }
202 if (!*psx) {
203 if (!(sx = SXNET_new()))
204 goto err;
205 if (!ASN1_INTEGER_set(sx->version, 0))
206 goto err;
207 *psx = sx;
208 } else
209 sx = *psx;
210 if (SXNET_get_id_INTEGER(sx, zone)) {
211 OPENSSL_PUT_ERROR(X509V3, X509V3_R_DUPLICATE_ZONE_ID);
212 return 0;
213 }
214
215 if (!(id = SXNETID_new()))
216 goto err;
217 if (userlen == -1)
218 userlen = strlen(user);
219
220 if (!M_ASN1_OCTET_STRING_set(id->user, user, userlen))
221 goto err;
222 if (!sk_SXNETID_push(sx->ids, id))
223 goto err;
224 id->zone = zone;
225 return 1;
226
227 err:
228 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
229 SXNETID_free(id);
230 SXNET_free(sx);
231 *psx = NULL;
232 return 0;
233}
234
235ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone)
236{
237 ASN1_INTEGER *izone = NULL;
238 ASN1_OCTET_STRING *oct;
239 if (!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
240 OPENSSL_PUT_ERROR(X509V3, X509V3_R_ERROR_CONVERTING_ZONE);
241 return NULL;
242 }
243 oct = SXNET_get_id_INTEGER(sx, izone);
244 M_ASN1_INTEGER_free(izone);
245 return oct;
246}
247
248ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone)
249{
250 ASN1_INTEGER *izone = NULL;
251 ASN1_OCTET_STRING *oct;
252 if (!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
253 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
254 M_ASN1_INTEGER_free(izone);
255 return NULL;
256 }
257 oct = SXNET_get_id_INTEGER(sx, izone);
258 M_ASN1_INTEGER_free(izone);
259 return oct;
260}
261
262ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone)
263{
264 SXNETID *id;
265 size_t i;
266 for (i = 0; i < sk_SXNETID_num(sx->ids); i++) {
267 id = sk_SXNETID_value(sx->ids, i);
268 if (!M_ASN1_INTEGER_cmp(id->zone, zone))
269 return id->user;
270 }
271 return NULL;
272}
273
274IMPLEMENT_ASN1_SET_OF(SXNETID)
275