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1 /* v3_bitst.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 #include <stdio.h>
59 #include <string.h>
60 
61 #include <openssl/conf.h>
62 #include <openssl/err.h>
63 #include <openssl/obj.h>
64 #include <openssl/x509v3.h>
65 
66 static const BIT_STRING_BITNAME ns_cert_type_table[] = {
67     {0, "SSL Client", "client"},
68     {1, "SSL Server", "server"},
69     {2, "S/MIME", "email"},
70     {3, "Object Signing", "objsign"},
71     {4, "Unused", "reserved"},
72     {5, "SSL CA", "sslCA"},
73     {6, "S/MIME CA", "emailCA"},
74     {7, "Object Signing CA", "objCA"},
75     {-1, NULL, NULL}
76 };
77 
78 static const BIT_STRING_BITNAME key_usage_type_table[] = {
79     {0, "Digital Signature", "digitalSignature"},
80     {1, "Non Repudiation", "nonRepudiation"},
81     {2, "Key Encipherment", "keyEncipherment"},
82     {3, "Data Encipherment", "dataEncipherment"},
83     {4, "Key Agreement", "keyAgreement"},
84     {5, "Certificate Sign", "keyCertSign"},
85     {6, "CRL Sign", "cRLSign"},
86     {7, "Encipher Only", "encipherOnly"},
87     {8, "Decipher Only", "decipherOnly"},
88     {-1, NULL, NULL}
89 };
90 
91 const X509V3_EXT_METHOD v3_nscert =
92 EXT_BITSTRING(NID_netscape_cert_type, ns_cert_type_table);
93 const X509V3_EXT_METHOD v3_key_usage =
94 EXT_BITSTRING(NID_key_usage, key_usage_type_table);
95 
STACK_OF(CONF_VALUE)96 STACK_OF(CONF_VALUE) *i2v_ASN1_BIT_STRING(X509V3_EXT_METHOD *method,
97                                           ASN1_BIT_STRING *bits,
98                                           STACK_OF(CONF_VALUE) *ret)
99 {
100     const BIT_STRING_BITNAME *bnam;
101     for (bnam = method->usr_data; bnam->lname; bnam++) {
102         if (ASN1_BIT_STRING_get_bit(bits, bnam->bitnum))
103             X509V3_add_value(bnam->lname, NULL, &ret);
104     }
105     return ret;
106 }
107 
v2i_ASN1_BIT_STRING(X509V3_EXT_METHOD * method,X509V3_CTX * ctx,STACK_OF (CONF_VALUE)* nval)108 ASN1_BIT_STRING *v2i_ASN1_BIT_STRING(X509V3_EXT_METHOD *method,
109                                      X509V3_CTX *ctx,
110                                      STACK_OF(CONF_VALUE) *nval)
111 {
112     CONF_VALUE *val;
113     ASN1_BIT_STRING *bs;
114     size_t i;
115     const BIT_STRING_BITNAME *bnam;
116     if (!(bs = M_ASN1_BIT_STRING_new())) {
117         OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
118         return NULL;
119     }
120     for (i = 0; i < sk_CONF_VALUE_num(nval); i++) {
121         val = sk_CONF_VALUE_value(nval, i);
122         for (bnam = method->usr_data; bnam->lname; bnam++) {
123             if (!strcmp(bnam->sname, val->name) ||
124                 !strcmp(bnam->lname, val->name)) {
125                 if (!ASN1_BIT_STRING_set_bit(bs, bnam->bitnum, 1)) {
126                     OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
127                     M_ASN1_BIT_STRING_free(bs);
128                     return NULL;
129                 }
130                 break;
131             }
132         }
133         if (!bnam->lname) {
134             OPENSSL_PUT_ERROR(X509V3, X509V3_R_UNKNOWN_BIT_STRING_ARGUMENT);
135             X509V3_conf_err(val);
136             M_ASN1_BIT_STRING_free(bs);
137             return NULL;
138         }
139     }
140     return bs;
141 }
142