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      1 /* v3_extku.c */
      2 /* Written by Dr Stephen N Henson (steve (at) 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 (at) 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 (at) cryptsoft.com).  This product includes software written by Tim
     55  * Hudson (tjh (at) cryptsoft.com). */
     56 
     57 
     58 #include <stdio.h>
     59 
     60 #include <openssl/asn1t.h>
     61 #include <openssl/conf.h>
     62 #include <openssl/err.h>
     63 #include <openssl/obj.h>
     64 #include <openssl/x509v3.h>
     65 
     66 
     67 static void *v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method,
     68 				    X509V3_CTX *ctx,
     69 				    STACK_OF(CONF_VALUE) *nval);
     70 static STACK_OF(CONF_VALUE) *i2v_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method,
     71 		void *eku, STACK_OF(CONF_VALUE) *extlist);
     72 
     73 const X509V3_EXT_METHOD v3_ext_ku = {
     74 	NID_ext_key_usage, 0,
     75 	ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
     76 	0,0,0,0,
     77 	0,0,
     78 	i2v_EXTENDED_KEY_USAGE,
     79 	v2i_EXTENDED_KEY_USAGE,
     80 	0,0,
     81 	NULL
     82 };
     83 
     84 /* NB OCSP acceptable responses also is a SEQUENCE OF OBJECT */
     85 const X509V3_EXT_METHOD v3_ocsp_accresp = {
     86 	NID_id_pkix_OCSP_acceptableResponses, 0,
     87 	ASN1_ITEM_ref(EXTENDED_KEY_USAGE),
     88 	0,0,0,0,
     89 	0,0,
     90 	i2v_EXTENDED_KEY_USAGE,
     91 	v2i_EXTENDED_KEY_USAGE,
     92 	0,0,
     93 	NULL
     94 };
     95 
     96 ASN1_ITEM_TEMPLATE(EXTENDED_KEY_USAGE) =
     97 	ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, EXTENDED_KEY_USAGE, ASN1_OBJECT)
     98 ASN1_ITEM_TEMPLATE_END(EXTENDED_KEY_USAGE)
     99 
    100 IMPLEMENT_ASN1_FUNCTIONS(EXTENDED_KEY_USAGE)
    101 
    102 static STACK_OF(CONF_VALUE) *
    103   i2v_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method, void *a,
    104 			 STACK_OF(CONF_VALUE) *ext_list)
    105 {
    106 	EXTENDED_KEY_USAGE *eku = a;
    107 	size_t i;
    108 	ASN1_OBJECT *obj;
    109 	char obj_tmp[80];
    110 	for(i = 0; i < sk_ASN1_OBJECT_num(eku); i++) {
    111 		obj = sk_ASN1_OBJECT_value(eku, i);
    112 		i2t_ASN1_OBJECT(obj_tmp, 80, obj);
    113 		X509V3_add_value(NULL, obj_tmp, &ext_list);
    114 	}
    115 	return ext_list;
    116 }
    117 
    118 static void *v2i_EXTENDED_KEY_USAGE(const X509V3_EXT_METHOD *method,
    119 				    X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval)
    120 {
    121 	EXTENDED_KEY_USAGE *extku;
    122 	char *extval;
    123 	ASN1_OBJECT *objtmp;
    124 	CONF_VALUE *val;
    125 	size_t i;
    126 
    127 	if(!(extku = sk_ASN1_OBJECT_new_null())) {
    128 		OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE);
    129 		return NULL;
    130 	}
    131 
    132 	for(i = 0; i < sk_CONF_VALUE_num(nval); i++) {
    133 		val = sk_CONF_VALUE_value(nval, i);
    134 		if(val->value) extval = val->value;
    135 		else extval = val->name;
    136 		if(!(objtmp = OBJ_txt2obj(extval, 0))) {
    137 			sk_ASN1_OBJECT_pop_free(extku, ASN1_OBJECT_free);
    138 			OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_OBJECT_IDENTIFIER);
    139 			X509V3_conf_err(val);
    140 			return NULL;
    141 		}
    142 		sk_ASN1_OBJECT_push(extku, objtmp);
    143 	}
    144 	return extku;
    145 }
    146