1 /* $OpenBSD: asn_moid.c,v 1.14 2022/01/07 11:13:54 tb Exp $ */
2 /* Written by Stephen Henson (steve@openssl.org) for the OpenSSL
3  * project 2001.
4  */
5 /* ====================================================================
6  * Copyright (c) 2001-2004 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 <ctype.h>
60 #include <stdio.h>
61 #include <string.h>
62 
63 #include <openssl/err.h>
64 #include <openssl/conf.h>
65 #include <openssl/crypto.h>
66 #include <openssl/x509.h>
67 
68 #include "asn1_locl.h"
69 
70 /* Simple ASN1 OID module: add all objects in a given section */
71 
72 static int do_create(char *value, char *name);
73 
74 static int
75 oid_module_init(CONF_IMODULE *md, const CONF *cnf)
76 {
77 	int i;
78 	const char *oid_section;
79 	STACK_OF(CONF_VALUE) *sktmp;
80 	CONF_VALUE *oval;
81 
82 	oid_section = CONF_imodule_get_value(md);
83 	if (!(sktmp = NCONF_get_section(cnf, oid_section))) {
84 		ASN1error(ASN1_R_ERROR_LOADING_SECTION);
85 		return 0;
86 	}
87 	for (i = 0; i < sk_CONF_VALUE_num(sktmp); i++) {
88 		oval = sk_CONF_VALUE_value(sktmp, i);
89 		if (!do_create(oval->value, oval->name)) {
90 			ASN1error(ASN1_R_ADDING_OBJECT);
91 			return 0;
92 		}
93 	}
94 	return 1;
95 }
96 
97 static void
98 oid_module_finish(CONF_IMODULE *md)
99 {
100 	OBJ_cleanup();
101 }
102 
103 void
104 ASN1_add_oid_module(void)
105 {
106 	CONF_module_add("oid_section", oid_module_init, oid_module_finish);
107 }
108 
109 /* Create an OID based on a name value pair. Accept two formats.
110  * shortname = 1.2.3.4
111  * shortname = some long name, 1.2.3.4
112  */
113 
114 static int
115 do_create(char *value, char *name)
116 {
117 	int nid;
118 	ASN1_OBJECT *oid;
119 	char *ln, *ostr, *p, *lntmp;
120 
121 	p = strrchr(value, ',');
122 	if (!p) {
123 		ln = name;
124 		ostr = value;
125 	} else {
126 		ln = NULL;
127 		ostr = p + 1;
128 		if (!*ostr)
129 			return 0;
130 		while (isspace((unsigned char)*ostr))
131 			ostr++;
132 	}
133 
134 	nid = OBJ_create(ostr, name, ln);
135 
136 	if (nid == NID_undef)
137 		return 0;
138 
139 	if (p) {
140 		ln = value;
141 		while (isspace((unsigned char)*ln))
142 			ln++;
143 		p--;
144 		while (isspace((unsigned char)*p)) {
145 			if (p == ln)
146 				return 0;
147 			p--;
148 		}
149 		p++;
150 		lntmp = malloc((p - ln) + 1);
151 		if (lntmp == NULL)
152 			return 0;
153 		memcpy(lntmp, ln, p - ln);
154 		lntmp[p - ln] = 0;
155 		oid = OBJ_nid2obj(nid);
156 		oid->ln = lntmp;
157 	}
158 
159 	return 1;
160 }
161