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 <string.h>
61
62 #include <openssl/asn1.h>
63 #include <openssl/asn1t.h>
64 #include <openssl/conf.h>
65 #include <openssl/err.h>
66 #include <openssl/mem.h>
67 #include <openssl/obj.h>
68 #include <openssl/x509v3.h>
69
70
71 /* Support for Thawte strong extranet extension */
72
73 #define SXNET_TEST
74
75 static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out, int indent);
76 #ifdef SXNET_TEST
77 static SXNET * sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
78 STACK_OF(CONF_VALUE) *nval);
79 #endif
80 const X509V3_EXT_METHOD v3_sxnet = {
81 NID_sxnet, X509V3_EXT_MULTILINE, ASN1_ITEM_ref(SXNET),
82 0,0,0,0,
83 0,0,
84 0,
85 #ifdef SXNET_TEST
86 (X509V3_EXT_V2I)sxnet_v2i,
87 #else
88 0,
89 #endif
90 (X509V3_EXT_I2R)sxnet_i2r,
91 0,
92 NULL
93 };
94
95 ASN1_SEQUENCE(SXNETID) = {
96 ASN1_SIMPLE(SXNETID, zone, ASN1_INTEGER),
97 ASN1_SIMPLE(SXNETID, user, ASN1_OCTET_STRING)
98 } ASN1_SEQUENCE_END(SXNETID)
99
100 IMPLEMENT_ASN1_FUNCTIONS(SXNETID)
101
102 ASN1_SEQUENCE(SXNET) = {
103 ASN1_SIMPLE(SXNET, version, ASN1_INTEGER),
104 ASN1_SEQUENCE_OF(SXNET, ids, SXNETID)
105 } ASN1_SEQUENCE_END(SXNET)
106
107 IMPLEMENT_ASN1_FUNCTIONS(SXNET)
108
109 static int sxnet_i2r(X509V3_EXT_METHOD *method, SXNET *sx, BIO *out,
110 int indent)
111 {
112 long v;
113 char *tmp;
114 SXNETID *id;
115 size_t i;
116 v = ASN1_INTEGER_get(sx->version);
117 BIO_printf(out, "%*sVersion: %ld (0x%lX)", indent, "", v + 1, v);
118 for(i = 0; i < sk_SXNETID_num(sx->ids); i++) {
119 id = sk_SXNETID_value(sx->ids, i);
120 tmp = i2s_ASN1_INTEGER(NULL, id->zone);
121 BIO_printf(out, "\n%*sZone: %s, User: ", indent, "", tmp);
122 OPENSSL_free(tmp);
123 M_ASN1_OCTET_STRING_print(out, id->user);
124 }
125 return 1;
126 }
127
128 #ifdef SXNET_TEST
129
130 /* NBB: this is used for testing only. It should *not* be used for anything
131 * else because it will just take static IDs from the configuration file and
132 * they should really be separate values for each user.
133 */
134
135
sxnet_v2i(X509V3_EXT_METHOD * method,X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* nval)136 static SXNET * sxnet_v2i(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
137 STACK_OF(CONF_VALUE) *nval)
138 {
139 CONF_VALUE *cnf;
140 SXNET *sx = NULL;
141 size_t i;
142 for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
143 cnf = sk_CONF_VALUE_value(nval, i);
144 if(!SXNET_add_id_asc(&sx, cnf->name, cnf->value, -1))
145 return NULL;
146 }
147 return sx;
148 }
149
150
151 #endif
152
153 /* Strong Extranet utility functions */
154
155 /* Add an id given the zone as an ASCII number */
156
SXNET_add_id_asc(SXNET ** psx,char * zone,char * user,int userlen)157 int SXNET_add_id_asc(SXNET **psx, char *zone, char *user,
158 int userlen)
159 {
160 ASN1_INTEGER *izone = NULL;
161 if(!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
162 OPENSSL_PUT_ERROR(X509V3, X509V3_R_ERROR_CONVERTING_ZONE);
163 return 0;
164 }
165 return SXNET_add_id_INTEGER(psx, izone, user, userlen);
166 }
167
168 /* Add an id given the zone as an unsigned long */
169
SXNET_add_id_ulong(SXNET ** psx,unsigned long lzone,char * user,int userlen)170 int SXNET_add_id_ulong(SXNET **psx, unsigned long lzone, char *user,
171 int userlen)
172 {
173 ASN1_INTEGER *izone = NULL;
174 if(!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
175 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
176 M_ASN1_INTEGER_free(izone);
177 return 0;
178 }
179 return SXNET_add_id_INTEGER(psx, izone, user, userlen);
180
181 }
182
183 /* Add an id given the zone as an ASN1_INTEGER.
184 * Note this version uses the passed integer and doesn't make a copy so don't
185 * free it up afterwards.
186 */
187
SXNET_add_id_INTEGER(SXNET ** psx,ASN1_INTEGER * zone,char * user,int userlen)188 int SXNET_add_id_INTEGER(SXNET **psx, ASN1_INTEGER *zone, char *user,
189 int userlen)
190 {
191 SXNET *sx = NULL;
192 SXNETID *id = NULL;
193 if(!psx || !zone || !user) {
194 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NULL_ARGUMENT);
195 return 0;
196 }
197 if(userlen == -1) 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())) goto err;
204 if(!ASN1_INTEGER_set(sx->version, 0)) goto err;
205 *psx = sx;
206 } else sx = *psx;
207 if(SXNET_get_id_INTEGER(sx, zone)) {
208 OPENSSL_PUT_ERROR(X509V3, X509V3_R_DUPLICATE_ZONE_ID);
209 return 0;
210 }
211
212 if(!(id = SXNETID_new())) goto err;
213 if(userlen == -1) userlen = strlen(user);
214
215 if(!M_ASN1_OCTET_STRING_set(id->user, user, userlen)) goto err;
216 if(!sk_SXNETID_push(sx->ids, id)) goto err;
217 id->zone = zone;
218 return 1;
219
220 err:
221 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
222 SXNETID_free(id);
223 SXNET_free(sx);
224 *psx = NULL;
225 return 0;
226 }
227
SXNET_get_id_asc(SXNET * sx,char * zone)228 ASN1_OCTET_STRING *SXNET_get_id_asc(SXNET *sx, char *zone)
229 {
230 ASN1_INTEGER *izone = NULL;
231 ASN1_OCTET_STRING *oct;
232 if(!(izone = s2i_ASN1_INTEGER(NULL, zone))) {
233 OPENSSL_PUT_ERROR(X509V3, X509V3_R_ERROR_CONVERTING_ZONE);
234 return NULL;
235 }
236 oct = SXNET_get_id_INTEGER(sx, izone);
237 M_ASN1_INTEGER_free(izone);
238 return oct;
239 }
240
SXNET_get_id_ulong(SXNET * sx,unsigned long lzone)241 ASN1_OCTET_STRING *SXNET_get_id_ulong(SXNET *sx, unsigned long lzone)
242 {
243 ASN1_INTEGER *izone = NULL;
244 ASN1_OCTET_STRING *oct;
245 if(!(izone = M_ASN1_INTEGER_new()) || !ASN1_INTEGER_set(izone, lzone)) {
246 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
247 M_ASN1_INTEGER_free(izone);
248 return NULL;
249 }
250 oct = SXNET_get_id_INTEGER(sx, izone);
251 M_ASN1_INTEGER_free(izone);
252 return oct;
253 }
254
SXNET_get_id_INTEGER(SXNET * sx,ASN1_INTEGER * zone)255 ASN1_OCTET_STRING *SXNET_get_id_INTEGER(SXNET *sx, ASN1_INTEGER *zone)
256 {
257 SXNETID *id;
258 size_t i;
259 for(i = 0; i < sk_SXNETID_num(sx->ids); i++) {
260 id = sk_SXNETID_value(sx->ids, i);
261 if(!M_ASN1_INTEGER_cmp(id->zone, zone)) return id->user;
262 }
263 return NULL;
264 }
265
266 IMPLEMENT_ASN1_SET_OF(SXNETID)
267