crypto/openssl-0.9/crypto/x509v3/v3_pcons.c

   1 /* v3_pcons.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 2003 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/asn1t.h>
  64 #include <openssl/conf.h>
  65 #include <openssl/x509v3.h>
  66
  67 static STACK_OF(CONF_VALUE) *i2v_POLICY_CONSTRAINTS(X509V3_EXT_METHOD *method,
  68                                 void *bcons, STACK_OF(CONF_VALUE) *extlist);
  69 static void *v2i_POLICY_CONSTRAINTS(X509V3_EXT_METHOD *method,
  70                                 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values);
  71
  72 const X509V3_EXT_METHOD v3_policy_constraints = {
  73 NID_policy_constraints, 0,
  74 ASN1_ITEM_ref(POLICY_CONSTRAINTS),
  75 0,0,0,0,
  76 0,0,
  77 i2v_POLICY_CONSTRAINTS,
  78 v2i_POLICY_CONSTRAINTS,
  79 NULL,NULL,
  80 NULL
  81 };
  82
  83 ASN1_SEQUENCE(POLICY_CONSTRAINTS) = {
  84         ASN1_IMP_OPT(POLICY_CONSTRAINTS, requireExplicitPolicy, ASN1_INTEGER,0),
  85         ASN1_IMP_OPT(POLICY_CONSTRAINTS, inhibitPolicyMapping, ASN1_INTEGER,1)
  86 } ASN1_SEQUENCE_END(POLICY_CONSTRAINTS)
  87
  88 IMPLEMENT_ASN1_ALLOC_FUNCTIONS(POLICY_CONSTRAINTS)
  89
  90
  91 static STACK_OF(CONF_VALUE) *i2v_POLICY_CONSTRAINTS(X509V3_EXT_METHOD *method,
  92              void *a, STACK_OF(CONF_VALUE) *extlist)
  93 {
  94         POLICY_CONSTRAINTS *pcons = a;
  95         X509V3_add_value_int("Require Explicit Policy",
  96                         pcons->requireExplicitPolicy, &extlist);
  97         X509V3_add_value_int("Inhibit Policy Mapping",
  98                         pcons->inhibitPolicyMapping, &extlist);
  99         return extlist;
 100 }
 101
 102 static void *v2i_POLICY_CONSTRAINTS(X509V3_EXT_METHOD *method,
 103              X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values)
 104 {
 105         POLICY_CONSTRAINTS *pcons=NULL;
 106         CONF_VALUE *val;
 107         int i;
 108         if(!(pcons = POLICY_CONSTRAINTS_new())) {
 109                 X509V3err(X509V3_F_V2I_POLICY_CONSTRAINTS, ERR_R_MALLOC_FAILURE);
 110                 return NULL;
 111         }
 112         for(i = 0; i < sk_CONF_VALUE_num(values); i++) {
 113                 val = sk_CONF_VALUE_value(values, i);
 114                 if(!strcmp(val->name, "requireExplicitPolicy")) {
 115                         if(!X509V3_get_value_int(val,
 116                                 &pcons->requireExplicitPolicy)) goto err;
 117                 } else if(!strcmp(val->name, "inhibitPolicyMapping")) {
 118                         if(!X509V3_get_value_int(val,
 119                                 &pcons->inhibitPolicyMapping)) goto err;
 120                 } else {
 121                         X509V3err(X509V3_F_V2I_POLICY_CONSTRAINTS, X509V3_R_INVALID_NAME);
 122                         X509V3_conf_err(val);
 123                         goto err;
 124                 }
 125         }
 126         if (!pcons->inhibitPolicyMapping && !pcons->requireExplicitPolicy) {
 127                 X509V3err(X509V3_F_V2I_POLICY_CONSTRAINTS, X509V3_R_ILLEGAL_EMPTY_EXTENSION);
 128                 goto err;
 129         }
 130
 131         return pcons;
 132         err:
 133         POLICY_CONSTRAINTS_free(pcons);
 134         return NULL;
 135 }
 136