1 /*
2 * Written by Dr Stephen N Henson ([email protected]) for the OpenSSL project
3 * 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 * [email protected].
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 * ([email protected]). This product includes software written by Tim
55 * Hudson ([email protected]). */
56
57 #include <stdio.h>
58
59 #include <openssl/asn1t.h>
60 #include <openssl/evp.h>
61 #include <openssl/obj.h>
62 #include <openssl/x509.h>
63
64 #include "internal.h"
65
66
67 // X509_CERT_AUX routines. These are used to encode additional user
68 // modifiable data about a certificate. This data is appended to the X509
69 // encoding when the *_X509_AUX routines are used. This means that the
70 // "traditional" X509 routines will simply ignore the extra data.
71
72 static X509_CERT_AUX *aux_get(X509 *x);
73
74 ASN1_SEQUENCE(X509_CERT_AUX) = {
75 ASN1_SEQUENCE_OF_OPT(X509_CERT_AUX, trust, ASN1_OBJECT),
76 ASN1_IMP_SEQUENCE_OF_OPT(X509_CERT_AUX, reject, ASN1_OBJECT, 0),
77 ASN1_OPT(X509_CERT_AUX, alias, ASN1_UTF8STRING),
78 ASN1_OPT(X509_CERT_AUX, keyid, ASN1_OCTET_STRING),
79 } ASN1_SEQUENCE_END(X509_CERT_AUX)
80
81 IMPLEMENT_ASN1_FUNCTIONS_const(X509_CERT_AUX)
82
83 static X509_CERT_AUX *aux_get(X509 *x) {
84 if (!x) {
85 return NULL;
86 }
87 if (!x->aux && !(x->aux = X509_CERT_AUX_new())) {
88 return NULL;
89 }
90 return x->aux;
91 }
92
X509_alias_set1(X509 * x,const uint8_t * name,ossl_ssize_t len)93 int X509_alias_set1(X509 *x, const uint8_t *name, ossl_ssize_t len) {
94 X509_CERT_AUX *aux;
95 // TODO(davidben): Empty aliases are not meaningful in PKCS#12, and the
96 // getters cannot quite represent them. Also erase the object if |len| is
97 // zero.
98 if (!name) {
99 if (!x || !x->aux || !x->aux->alias) {
100 return 1;
101 }
102 ASN1_UTF8STRING_free(x->aux->alias);
103 x->aux->alias = NULL;
104 return 1;
105 }
106 if (!(aux = aux_get(x))) {
107 return 0;
108 }
109 if (!aux->alias && !(aux->alias = ASN1_UTF8STRING_new())) {
110 return 0;
111 }
112 return ASN1_STRING_set(aux->alias, name, len);
113 }
114
X509_keyid_set1(X509 * x,const uint8_t * id,ossl_ssize_t len)115 int X509_keyid_set1(X509 *x, const uint8_t *id, ossl_ssize_t len) {
116 X509_CERT_AUX *aux;
117 // TODO(davidben): Empty key IDs are not meaningful in PKCS#12, and the
118 // getters cannot quite represent them. Also erase the object if |len| is
119 // zero.
120 if (!id) {
121 if (!x || !x->aux || !x->aux->keyid) {
122 return 1;
123 }
124 ASN1_OCTET_STRING_free(x->aux->keyid);
125 x->aux->keyid = NULL;
126 return 1;
127 }
128 if (!(aux = aux_get(x))) {
129 return 0;
130 }
131 if (!aux->keyid && !(aux->keyid = ASN1_OCTET_STRING_new())) {
132 return 0;
133 }
134 return ASN1_STRING_set(aux->keyid, id, len);
135 }
136
X509_alias_get0(const X509 * x,int * out_len)137 const uint8_t *X509_alias_get0(const X509 *x, int *out_len) {
138 const ASN1_UTF8STRING *alias = x->aux != NULL ? x->aux->alias : NULL;
139 if (out_len != NULL) {
140 *out_len = alias != NULL ? alias->length : 0;
141 }
142 return alias != NULL ? alias->data : NULL;
143 }
144
X509_keyid_get0(const X509 * x,int * out_len)145 const uint8_t *X509_keyid_get0(const X509 *x, int *out_len) {
146 const ASN1_OCTET_STRING *keyid = x->aux != NULL ? x->aux->keyid : NULL;
147 if (out_len != NULL) {
148 *out_len = keyid != NULL ? keyid->length : 0;
149 }
150 return keyid != NULL ? keyid->data : NULL;
151 }
152
X509_add1_trust_object(X509 * x,const ASN1_OBJECT * obj)153 int X509_add1_trust_object(X509 *x, const ASN1_OBJECT *obj) {
154 ASN1_OBJECT *objtmp = OBJ_dup(obj);
155 if (objtmp == NULL) {
156 goto err;
157 }
158 X509_CERT_AUX *aux = aux_get(x);
159 if (aux->trust == NULL) {
160 aux->trust = sk_ASN1_OBJECT_new_null();
161 if (aux->trust == NULL) {
162 goto err;
163 }
164 }
165 if (!sk_ASN1_OBJECT_push(aux->trust, objtmp)) {
166 goto err;
167 }
168 return 1;
169
170 err:
171 ASN1_OBJECT_free(objtmp);
172 return 0;
173 }
174
X509_add1_reject_object(X509 * x,const ASN1_OBJECT * obj)175 int X509_add1_reject_object(X509 *x, const ASN1_OBJECT *obj) {
176 ASN1_OBJECT *objtmp = OBJ_dup(obj);
177 if (objtmp == NULL) {
178 goto err;
179 }
180 X509_CERT_AUX *aux = aux_get(x);
181 if (aux->reject == NULL) {
182 aux->reject = sk_ASN1_OBJECT_new_null();
183 if (aux->reject == NULL) {
184 goto err;
185 }
186 }
187 if (!sk_ASN1_OBJECT_push(aux->reject, objtmp)) {
188 goto err;
189 }
190 return 1;
191
192 err:
193 ASN1_OBJECT_free(objtmp);
194 return 0;
195 }
196
X509_trust_clear(X509 * x)197 void X509_trust_clear(X509 *x) {
198 if (x->aux && x->aux->trust) {
199 sk_ASN1_OBJECT_pop_free(x->aux->trust, ASN1_OBJECT_free);
200 x->aux->trust = NULL;
201 }
202 }
203
X509_reject_clear(X509 * x)204 void X509_reject_clear(X509 *x) {
205 if (x->aux && x->aux->reject) {
206 sk_ASN1_OBJECT_pop_free(x->aux->reject, ASN1_OBJECT_free);
207 x->aux->reject = NULL;
208 }
209 }
210