release/src/router/openssl/crypto/asn1/x_algor.c

   1 /* x_algor.c */
   2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
   3  * project 2000.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2000 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 <stddef.h>
  60 #include <openssl/x509.h>
  61 #include <openssl/asn1.h>
  62 #include <openssl/asn1t.h>
  63
  64 ASN1_SEQUENCE(X509_ALGOR) = {
  65         ASN1_SIMPLE(X509_ALGOR, algorithm, ASN1_OBJECT),
  66         ASN1_OPT(X509_ALGOR, parameter, ASN1_ANY)
  67 } ASN1_SEQUENCE_END(X509_ALGOR)
  68
  69 ASN1_ITEM_TEMPLATE(X509_ALGORS) =
  70         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, algorithms, X509_ALGOR)
  71 ASN1_ITEM_TEMPLATE_END(X509_ALGORS)
  72
  73 IMPLEMENT_ASN1_FUNCTIONS(X509_ALGOR)
  74 IMPLEMENT_ASN1_ENCODE_FUNCTIONS_fname(X509_ALGORS, X509_ALGORS, X509_ALGORS)
  75 IMPLEMENT_ASN1_DUP_FUNCTION(X509_ALGOR)
  76
  77 IMPLEMENT_STACK_OF(X509_ALGOR)
  78 IMPLEMENT_ASN1_SET_OF(X509_ALGOR)
  79
  80 int X509_ALGOR_set0(X509_ALGOR *alg, ASN1_OBJECT *aobj, int ptype, void *pval)
  81         {
  82         if (!alg)
  83                 return 0;
  84         if (ptype != V_ASN1_UNDEF)
  85                 {
  86                 if (alg->parameter == NULL)
  87                         alg->parameter = ASN1_TYPE_new();
  88                 if (alg->parameter == NULL)
  89                         return 0;
  90                 }
  91         if (alg)
  92                 {
  93                 if (alg->algorithm)
  94                         ASN1_OBJECT_free(alg->algorithm);
  95                 alg->algorithm = aobj;
  96                 }
  97         if (ptype == 0)
  98                 return 1;
  99         if (ptype == V_ASN1_UNDEF)
 100                 {
 101                 if (alg->parameter)
 102                         {
 103                         ASN1_TYPE_free(alg->parameter);
 104                         alg->parameter = NULL;
 105                         }
 106                 }
 107         else
 108                 ASN1_TYPE_set(alg->parameter, ptype, pval);
 109         return 1;
 110         }
 111
 112 void X509_ALGOR_get0(ASN1_OBJECT **paobj, int *pptype, void **ppval,
 113                                                 X509_ALGOR *algor)
 114         {
 115         if (paobj)
 116                 *paobj = algor->algorithm;
 117         if (pptype)
 118                 {
 119                 if (algor->parameter == NULL)
 120                         {
 121                         *pptype = V_ASN1_UNDEF;
 122                         return;
 123                         }
 124                 else
 125                         *pptype = algor->parameter->type;
 126                 if (ppval)
 127                         *ppval = algor->parameter->value.ptr;
 128                 }
 129         }
 130
 131 /* Set up an X509_ALGOR DigestAlgorithmIdentifier from an EVP_MD */
 132
 133 void X509_ALGOR_set_md(X509_ALGOR *alg, const EVP_MD *md)
 134         {
 135         int param_type;
 136
 137         if (md->flags & EVP_MD_FLAG_DIGALGID_ABSENT)
 138                 param_type = V_ASN1_UNDEF;
 139         else
 140                 param_type = V_ASN1_NULL;
 141
 142         X509_ALGOR_set0(alg, OBJ_nid2obj(EVP_MD_type(md)), param_type, NULL);
 143
 144         }