crypto/x509v3/v3_extku.c

   1 /* v3_extku.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) 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
  60 #include <stdio.h>
  61 #include "cryptlib.h"
  62 #include <openssl/asn1.h>
  63 #include <openssl/conf.h>
  64 #include <openssl/x509v3.h>
  65
  66 static STACK *v2i_ext_ku(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *nval);
  67 static STACK *i2v_ext_ku(X509V3_EXT_METHOD *method, STACK *eku, STACK *extlist);
  68 X509V3_EXT_METHOD v3_ext_ku = {
  69 NID_ext_key_usage, 0,
  70 (X509V3_EXT_NEW)ext_ku_new,
  71 ext_ku_free,
  72 (X509V3_EXT_D2I)d2i_ext_ku,
  73 i2d_ext_ku,
  74 NULL, NULL,
  75 (X509V3_EXT_I2V)i2v_ext_ku,
  76 (X509V3_EXT_V2I)v2i_ext_ku,
  77 NULL,NULL,
  78 NULL
  79 };
  80
  81 STACK *ext_ku_new(void)
  82 {
  83         return sk_new_null();
  84 }
  85
  86 void ext_ku_free(STACK *eku)
  87 {
  88         sk_pop_free(eku, ASN1_OBJECT_free);
  89         return;
  90 }
  91
  92 int i2d_ext_ku(STACK *a, unsigned char **pp)
  93 {
  94         return i2d_ASN1_SET(a, pp, i2d_ASN1_OBJECT, V_ASN1_SEQUENCE,
  95                                                  V_ASN1_UNIVERSAL, IS_SEQUENCE);
  96 }
  97
  98 STACK *d2i_ext_ku(STACK **a, unsigned char **pp, long length)
  99 {
 100         return d2i_ASN1_SET(a, pp, length, (char *(*)())(d2i_ASN1_OBJECT),
 101                          ASN1_OBJECT_free, V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL);
 102 }
 103
 104
 105
 106 static STACK *i2v_ext_ku(X509V3_EXT_METHOD *method, STACK *eku,
 107              STACK *ext_list)
 108 {
 109 int i;
 110 ASN1_OBJECT *obj;
 111 char obj_tmp[80];
 112 for(i = 0; i < sk_num(eku); i++) {
 113         obj = (ASN1_OBJECT *)sk_value(eku, i);
 114         i2t_ASN1_OBJECT(obj_tmp, 80, obj);
 115         X509V3_add_value(NULL, obj_tmp, &ext_list);
 116 }
 117 return ext_list;
 118 }
 119
 120 static STACK *v2i_ext_ku(X509V3_EXT_METHOD *method, X509V3_CTX *ctx,
 121              STACK *nval)
 122 {
 123 STACK *extku;
 124 char *extval;
 125 ASN1_OBJECT *objtmp;
 126 CONF_VALUE *val;
 127 int i;
 128
 129 if(!(extku = sk_new(NULL))) {
 130         X509V3err(X509V3_F_V2I_EXT_KU,ERR_R_MALLOC_FAILURE);
 131         return NULL;
 132 }
 133
 134 for(i = 0; i < sk_num(nval); i++) {
 135         val = (CONF_VALUE *)sk_value(nval, i);
 136         if(val->value) extval = val->value;
 137         else extval = val->name;
 138         if(!(objtmp = OBJ_txt2obj(extval, 0))) {
 139                 sk_pop_free(extku, ASN1_OBJECT_free);
 140                 X509V3err(X509V3_F_V2I_EXT_KU,X509V3_R_INVALID_OBJECT_IDENTIFIER);
 141                 X509V3_conf_err(val);
 142                 return NULL;
 143         }
 144         sk_push(extku, (char *)objtmp);
 145 }
 146 return extku;
 147 }