1 /* $OpenBSD: x509_pmaps.c,v 1.1 2020/06/04 15:19:32 jsing Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project.
4 */
5 /* ====================================================================
6 * Copyright (c) 2003 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
60 #include <stdio.h>
61
62 #include <openssl/asn1t.h>
63 #include <openssl/conf.h>
64 #include <openssl/err.h>
65 #include <openssl/x509v3.h>
66
67 static void *v2i_POLICY_MAPPINGS(const X509V3_EXT_METHOD *method,
68 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval);
69 static STACK_OF(CONF_VALUE) *i2v_POLICY_MAPPINGS(
70 const X509V3_EXT_METHOD *method, void *pmps, STACK_OF(CONF_VALUE) *extlist);
71
72 const X509V3_EXT_METHOD v3_policy_mappings = {
73 .ext_nid = NID_policy_mappings,
74 .ext_flags = 0,
75 .it = &POLICY_MAPPINGS_it,
76 .ext_new = NULL,
77 .ext_free = NULL,
78 .d2i = NULL,
79 .i2d = NULL,
80 .i2s = NULL,
81 .s2i = NULL,
82 .i2v = i2v_POLICY_MAPPINGS,
83 .v2i = v2i_POLICY_MAPPINGS,
84 .i2r = NULL,
85 .r2i = NULL,
86 .usr_data = NULL,
87 };
88
89 static const ASN1_TEMPLATE POLICY_MAPPING_seq_tt[] = {
90 {
91 .flags = 0,
92 .tag = 0,
93 .offset = offsetof(POLICY_MAPPING, issuerDomainPolicy),
94 .field_name = "issuerDomainPolicy",
95 .item = &ASN1_OBJECT_it,
96 },
97 {
98 .flags = 0,
99 .tag = 0,
100 .offset = offsetof(POLICY_MAPPING, subjectDomainPolicy),
101 .field_name = "subjectDomainPolicy",
102 .item = &ASN1_OBJECT_it,
103 },
104 };
105
106 const ASN1_ITEM POLICY_MAPPING_it = {
107 .itype = ASN1_ITYPE_SEQUENCE,
108 .utype = V_ASN1_SEQUENCE,
109 .templates = POLICY_MAPPING_seq_tt,
110 .tcount = sizeof(POLICY_MAPPING_seq_tt) / sizeof(ASN1_TEMPLATE),
111 .funcs = NULL,
112 .size = sizeof(POLICY_MAPPING),
113 .sname = "POLICY_MAPPING",
114 };
115
116 static const ASN1_TEMPLATE POLICY_MAPPINGS_item_tt = {
117 .flags = ASN1_TFLG_SEQUENCE_OF,
118 .tag = 0,
119 .offset = 0,
120 .field_name = "POLICY_MAPPINGS",
121 .item = &POLICY_MAPPING_it,
122 };
123
124 const ASN1_ITEM POLICY_MAPPINGS_it = {
125 .itype = ASN1_ITYPE_PRIMITIVE,
126 .utype = -1,
127 .templates = &POLICY_MAPPINGS_item_tt,
128 .tcount = 0,
129 .funcs = NULL,
130 .size = 0,
131 .sname = "POLICY_MAPPINGS",
132 };
133
134
135 POLICY_MAPPING *
POLICY_MAPPING_new(void)136 POLICY_MAPPING_new(void)
137 {
138 return (POLICY_MAPPING*)ASN1_item_new(&POLICY_MAPPING_it);
139 }
140
141 void
POLICY_MAPPING_free(POLICY_MAPPING * a)142 POLICY_MAPPING_free(POLICY_MAPPING *a)
143 {
144 ASN1_item_free((ASN1_VALUE *)a, &POLICY_MAPPING_it);
145 }
146
STACK_OF(CONF_VALUE)147 static STACK_OF(CONF_VALUE) *
148 i2v_POLICY_MAPPINGS(const X509V3_EXT_METHOD *method, void *a,
149 STACK_OF(CONF_VALUE) *extlist)
150 {
151 STACK_OF(CONF_VALUE) *free_extlist = NULL;
152 POLICY_MAPPINGS *pmaps = a;
153 POLICY_MAPPING *pmap;
154 char issuer[80], subject[80];
155 int i;
156
157 if (extlist == NULL) {
158 if ((free_extlist = extlist = sk_CONF_VALUE_new_null()) == NULL)
159 return NULL;
160 }
161
162 for (i = 0; i < sk_POLICY_MAPPING_num(pmaps); i++) {
163 if ((pmap = sk_POLICY_MAPPING_value(pmaps, i)) == NULL)
164 goto err;
165 if (!i2t_ASN1_OBJECT(issuer, sizeof issuer,
166 pmap->issuerDomainPolicy))
167 goto err;
168 if (!i2t_ASN1_OBJECT(subject, sizeof subject,
169 pmap->subjectDomainPolicy))
170 goto err;
171 if (!X509V3_add_value(issuer, subject, &extlist))
172 goto err;
173 }
174
175 return extlist;
176
177 err:
178 sk_CONF_VALUE_pop_free(free_extlist, X509V3_conf_free);
179
180 return NULL;
181 }
182
183 static void *
v2i_POLICY_MAPPINGS(const X509V3_EXT_METHOD * method,X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* nval)184 v2i_POLICY_MAPPINGS(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
185 STACK_OF(CONF_VALUE) *nval)
186 {
187 POLICY_MAPPINGS *pmaps = NULL;
188 POLICY_MAPPING *pmap = NULL;
189 ASN1_OBJECT *obj1 = NULL, *obj2 = NULL;
190 CONF_VALUE *val;
191 int i, rc;
192
193 if (!(pmaps = sk_POLICY_MAPPING_new_null())) {
194 X509V3error(ERR_R_MALLOC_FAILURE);
195 return NULL;
196 }
197
198 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
199 val = sk_CONF_VALUE_value(nval, i);
200 if (!val->value || !val->name) {
201 rc = X509V3_R_INVALID_OBJECT_IDENTIFIER;
202 goto err;
203 }
204 obj1 = OBJ_txt2obj(val->name, 0);
205 obj2 = OBJ_txt2obj(val->value, 0);
206 if (!obj1 || !obj2) {
207 rc = X509V3_R_INVALID_OBJECT_IDENTIFIER;
208 goto err;
209 }
210 pmap = POLICY_MAPPING_new();
211 if (!pmap) {
212 rc = ERR_R_MALLOC_FAILURE;
213 goto err;
214 }
215 pmap->issuerDomainPolicy = obj1;
216 pmap->subjectDomainPolicy = obj2;
217 obj1 = obj2 = NULL;
218 if (sk_POLICY_MAPPING_push(pmaps, pmap) == 0) {
219 rc = ERR_R_MALLOC_FAILURE;
220 goto err;
221 }
222 pmap = NULL;
223 }
224 return pmaps;
225
226 err:
227 sk_POLICY_MAPPING_pop_free(pmaps, POLICY_MAPPING_free);
228 X509V3error(rc);
229 if (rc == X509V3_R_INVALID_OBJECT_IDENTIFIER)
230 X509V3_conf_err(val);
231 ASN1_OBJECT_free(obj1);
232 ASN1_OBJECT_free(obj2);
233 POLICY_MAPPING_free(pmap);
234 return NULL;
235 }
236