1 /* $OpenBSD: x509_bitst.c,v 1.8 2024/08/31 10:23:13 tb Exp $ */
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/conf.h>
63 #include <openssl/err.h>
64 #include <openssl/x509v3.h>
65
66 #include "x509_local.h"
67
68 static const BIT_STRING_BITNAME ns_cert_type_table[] = {
69 {0, "SSL Client", "client"},
70 {1, "SSL Server", "server"},
71 {2, "S/MIME", "email"},
72 {3, "Object Signing", "objsign"},
73 {4, "Unused", "reserved"},
74 {5, "SSL CA", "sslCA"},
75 {6, "S/MIME CA", "emailCA"},
76 {7, "Object Signing CA", "objCA"},
77 {-1, NULL, NULL}
78 };
79
80 static const BIT_STRING_BITNAME key_usage_type_table[] = {
81 {0, "Digital Signature", "digitalSignature"},
82 {1, "Non Repudiation", "nonRepudiation"},
83 {2, "Key Encipherment", "keyEncipherment"},
84 {3, "Data Encipherment", "dataEncipherment"},
85 {4, "Key Agreement", "keyAgreement"},
86 {5, "Certificate Sign", "keyCertSign"},
87 {6, "CRL Sign", "cRLSign"},
88 {7, "Encipher Only", "encipherOnly"},
89 {8, "Decipher Only", "decipherOnly"},
90 {-1, NULL, NULL}
91 };
92
93 static const BIT_STRING_BITNAME crl_reasons[] = {
94 {CRL_REASON_UNSPECIFIED, "Unspecified", "unspecified"},
95 {CRL_REASON_KEY_COMPROMISE, "Key Compromise", "keyCompromise"},
96 {CRL_REASON_CA_COMPROMISE, "CA Compromise", "CACompromise"},
97 {CRL_REASON_AFFILIATION_CHANGED, "Affiliation Changed", "affiliationChanged"},
98 {CRL_REASON_SUPERSEDED, "Superseded", "superseded"},
99 {CRL_REASON_CESSATION_OF_OPERATION, "Cessation Of Operation", "cessationOfOperation"},
100 {CRL_REASON_CERTIFICATE_HOLD, "Certificate Hold", "certificateHold"},
101 {CRL_REASON_REMOVE_FROM_CRL, "Remove From CRL", "removeFromCRL"},
102 {CRL_REASON_PRIVILEGE_WITHDRAWN, "Privilege Withdrawn", "privilegeWithdrawn"},
103 {CRL_REASON_AA_COMPROMISE, "AA Compromise", "AACompromise"},
104 {-1, NULL, NULL}
105 };
106
107 static const X509V3_EXT_METHOD x509v3_ext_netscape_cert_type = {
108 .ext_nid = NID_netscape_cert_type,
109 .ext_flags = 0,
110 .it = &ASN1_BIT_STRING_it,
111 .ext_new = NULL,
112 .ext_free = NULL,
113 .d2i = NULL,
114 .i2d = NULL,
115 .i2s = NULL,
116 .s2i = NULL,
117 .i2v = (X509V3_EXT_I2V)i2v_ASN1_BIT_STRING,
118 .v2i = (X509V3_EXT_V2I)v2i_ASN1_BIT_STRING,
119 .i2r = NULL,
120 .r2i = NULL,
121 .usr_data = ns_cert_type_table,
122 };
123
124 const X509V3_EXT_METHOD *
x509v3_ext_method_netscape_cert_type(void)125 x509v3_ext_method_netscape_cert_type(void)
126 {
127 return &x509v3_ext_netscape_cert_type;
128 }
129
130 static const X509V3_EXT_METHOD x509v3_ext_key_usage = {
131 .ext_nid = NID_key_usage,
132 .ext_flags = 0,
133 .it = &ASN1_BIT_STRING_it,
134 .ext_new = NULL,
135 .ext_free = NULL,
136 .d2i = NULL,
137 .i2d = NULL,
138 .i2s = NULL,
139 .s2i = NULL,
140 .i2v = (X509V3_EXT_I2V)i2v_ASN1_BIT_STRING,
141 .v2i = (X509V3_EXT_V2I)v2i_ASN1_BIT_STRING,
142 .i2r = NULL,
143 .r2i = NULL,
144 .usr_data = key_usage_type_table,
145 };
146
147 const X509V3_EXT_METHOD *
x509v3_ext_method_key_usage(void)148 x509v3_ext_method_key_usage(void)
149 {
150 return &x509v3_ext_key_usage;
151 }
152
153 static const X509V3_EXT_METHOD x509v3_ext_crl_reason = {
154 .ext_nid = NID_crl_reason,
155 .ext_flags = 0,
156 .it = &ASN1_ENUMERATED_it,
157 .ext_new = NULL,
158 .ext_free = NULL,
159 .d2i = NULL,
160 .i2d = NULL,
161 .i2s = (X509V3_EXT_I2S)i2s_ASN1_ENUMERATED_TABLE,
162 .s2i = NULL,
163 .i2v = NULL,
164 .v2i = NULL,
165 .i2r = NULL,
166 .r2i = NULL,
167 .usr_data = crl_reasons,
168 };
169
170 const X509V3_EXT_METHOD *
x509v3_ext_method_crl_reason(void)171 x509v3_ext_method_crl_reason(void)
172 {
173 return &x509v3_ext_crl_reason;
174 }
175
STACK_OF(CONF_VALUE)176 STACK_OF(CONF_VALUE) *
177 i2v_ASN1_BIT_STRING(X509V3_EXT_METHOD *method, ASN1_BIT_STRING *bits,
178 STACK_OF(CONF_VALUE) *ret)
179 {
180 const BIT_STRING_BITNAME *bnam;
181 STACK_OF(CONF_VALUE) *free_ret = NULL;
182
183 if (ret == NULL) {
184 if ((free_ret = ret = sk_CONF_VALUE_new_null()) == NULL)
185 return NULL;
186 }
187
188 for (bnam = method->usr_data; bnam->lname != NULL; bnam++) {
189 if (!ASN1_BIT_STRING_get_bit(bits, bnam->bitnum))
190 continue;
191 if (!X509V3_add_value(bnam->lname, NULL, &ret))
192 goto err;
193 }
194
195 return ret;
196
197 err:
198 sk_CONF_VALUE_pop_free(free_ret, X509V3_conf_free);
199
200 return NULL;
201 }
202 LCRYPTO_ALIAS(i2v_ASN1_BIT_STRING);
203
204 ASN1_BIT_STRING *
v2i_ASN1_BIT_STRING(X509V3_EXT_METHOD * method,X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* nval)205 v2i_ASN1_BIT_STRING(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
206 STACK_OF(CONF_VALUE) *nval)
207 {
208 CONF_VALUE *val;
209 ASN1_BIT_STRING *bs;
210 int i;
211 const BIT_STRING_BITNAME *bnam;
212
213 if (!(bs = ASN1_BIT_STRING_new())) {
214 X509V3error(ERR_R_MALLOC_FAILURE);
215 return NULL;
216 }
217 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
218 val = sk_CONF_VALUE_value(nval, i);
219 for (bnam = method->usr_data; bnam->lname; bnam++) {
220 if (!strcmp(bnam->sname, val->name) ||
221 !strcmp(bnam->lname, val->name) ) {
222 if (!ASN1_BIT_STRING_set_bit(bs,
223 bnam->bitnum, 1)) {
224 X509V3error(ERR_R_MALLOC_FAILURE);
225 ASN1_BIT_STRING_free(bs);
226 return NULL;
227 }
228 break;
229 }
230 }
231 if (!bnam->lname) {
232 X509V3error(X509V3_R_UNKNOWN_BIT_STRING_ARGUMENT);
233 X509V3_conf_err(val);
234 ASN1_BIT_STRING_free(bs);
235 return NULL;
236 }
237 }
238 return bs;
239 }
240 LCRYPTO_ALIAS(v2i_ASN1_BIT_STRING);
241