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

   1 /* pcy_node.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 2004.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 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 <openssl/asn1.h>
  60 #include <openssl/x509.h>
  61 #include <openssl/x509v3.h>
  62
  63 #include "pcy_int.h"
  64
  65 static int node_cmp(const X509_POLICY_NODE * const *a,
  66                         const X509_POLICY_NODE * const *b)
  67         {
  68         return OBJ_cmp((*a)->data->valid_policy, (*b)->data->valid_policy);
  69         }
  70
  71 STACK_OF(X509_POLICY_NODE) *policy_node_cmp_new(void)
  72         {
  73         return sk_X509_POLICY_NODE_new(node_cmp);
  74         }
  75
  76 X509_POLICY_NODE *tree_find_sk(STACK_OF(X509_POLICY_NODE) *nodes,
  77                                         const ASN1_OBJECT *id)
  78         {
  79         X509_POLICY_DATA n;
  80         X509_POLICY_NODE l;
  81         int idx;
  82
  83         n.valid_policy = (ASN1_OBJECT *)id;
  84         l.data = &n;
  85
  86         idx = sk_X509_POLICY_NODE_find(nodes, &l);
  87         if (idx == -1)
  88                 return NULL;
  89
  90         return sk_X509_POLICY_NODE_value(nodes, idx);
  91
  92         }
  93
  94 X509_POLICY_NODE *level_find_node(const X509_POLICY_LEVEL *level,
  95                                         const ASN1_OBJECT *id)
  96         {
  97         return tree_find_sk(level->nodes, id);
  98         }
  99
 100 X509_POLICY_NODE *level_add_node(X509_POLICY_LEVEL *level,
 101                         X509_POLICY_DATA *data,
 102                         X509_POLICY_NODE *parent,
 103                         X509_POLICY_TREE *tree)
 104         {
 105         X509_POLICY_NODE *node;
 106         node = OPENSSL_malloc(sizeof(X509_POLICY_NODE));
 107         if (!node)
 108                 return NULL;
 109         node->data = data;
 110         node->parent = parent;
 111         node->nchild = 0;
 112         if (level)
 113                 {
 114                 if (OBJ_obj2nid(data->valid_policy) == NID_any_policy)
 115                         {
 116                         if (level->anyPolicy)
 117                                 goto node_error;
 118                         level->anyPolicy = node;
 119                         }
 120                 else
 121                         {
 122
 123                         if (!level->nodes)
 124                                 level->nodes = policy_node_cmp_new();
 125                         if (!level->nodes)
 126                                 goto node_error;
 127                         if (!sk_X509_POLICY_NODE_push(level->nodes, node))
 128                                 goto node_error;
 129                         }
 130                 }
 131
 132         if (tree)
 133                 {
 134                 if (!tree->extra_data)
 135                          tree->extra_data = sk_X509_POLICY_DATA_new_null();
 136                 if (!tree->extra_data)
 137                         goto node_error;
 138                 if (!sk_X509_POLICY_DATA_push(tree->extra_data, data))
 139                         goto node_error;
 140                 }
 141
 142         if (parent)
 143                 parent->nchild++;
 144
 145         return node;
 146
 147         node_error:
 148         policy_node_free(node);
 149         return 0;
 150
 151         }
 152
 153 void policy_node_free(X509_POLICY_NODE *node)
 154         {
 155         OPENSSL_free(node);
 156         }
 157
 158