crypto/openssl-0.9/crypto/x509v3/pcy_int.h

   1 /* pcy_int.h */
   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 DECLARE_STACK_OF(X509_POLICY_DATA)
  60 DECLARE_STACK_OF(X509_POLICY_REF)
  61 DECLARE_STACK_OF(X509_POLICY_NODE)
  62
  63 typedef struct X509_POLICY_DATA_st X509_POLICY_DATA;
  64 typedef struct X509_POLICY_REF_st X509_POLICY_REF;
  65
  66 /* Internal structures */
  67
  68 /* This structure and the field names correspond to the Policy 'node' of
  69  * RFC3280. NB this structure contains no pointers to parent or child
  70  * data: X509_POLICY_NODE contains that. This means that the main policy data
  71  * can be kept static and cached with the certificate.
  72  */
  73
  74 struct X509_POLICY_DATA_st
  75         {
  76         unsigned int flags;
  77         /* Policy OID and qualifiers for this data */
  78         ASN1_OBJECT *valid_policy;
  79         STACK_OF(POLICYQUALINFO) *qualifier_set;
  80         STACK_OF(ASN1_OBJECT) *expected_policy_set;
  81         };
  82
  83 /* X509_POLICY_DATA flags values */
  84
  85 /* This flag indicates the structure has been mapped using a policy mapping
  86  * extension. If policy mapping is not active its references get deleted.
  87  */
  88
  89 #define POLICY_DATA_FLAG_MAPPED                 0x1
  90
  91 /* This flag indicates the data doesn't correspond to a policy in Certificate
  92  * Policies: it has been mapped to any policy.
  93  */
  94
  95 #define POLICY_DATA_FLAG_MAPPED_ANY             0x2
  96
  97 /* AND with flags to see if any mapping has occurred */
  98
  99 #define POLICY_DATA_FLAG_MAP_MASK               0x3
 100
 101 /* qualifiers are shared and shouldn't be freed */
 102
 103 #define POLICY_DATA_FLAG_SHARED_QUALIFIERS      0x4
 104
 105 /* Parent node is an extra node and should be freed */
 106
 107 #define POLICY_DATA_FLAG_EXTRA_NODE             0x8
 108
 109 /* Corresponding CertificatePolicies is critical */
 110
 111 #define POLICY_DATA_FLAG_CRITICAL               0x10
 112
 113 /* This structure is an entry from a table of mapped policies which
 114  * cross reference the policy it refers to.
 115  */
 116
 117 struct X509_POLICY_REF_st
 118         {
 119         ASN1_OBJECT *subjectDomainPolicy;
 120         const X509_POLICY_DATA *data;
 121         };
 122
 123 /* This structure is cached with a certificate */
 124
 125 struct X509_POLICY_CACHE_st {
 126         /* anyPolicy data or NULL if no anyPolicy */
 127         X509_POLICY_DATA *anyPolicy;
 128         /* other policy data */
 129         STACK_OF(X509_POLICY_DATA) *data;
 130         /* If policyMappings extension present a table of mapped policies */
 131         STACK_OF(X509_POLICY_REF) *maps;
 132         /* If InhibitAnyPolicy present this is its value or -1 if absent. */
 133         long any_skip;
 134         /* If policyConstraints and requireExplicitPolicy present this is its
 135          * value or -1 if absent.
 136          */
 137         long explicit_skip;
 138         /* If policyConstraints and policyMapping present this is its
 139          * value or -1 if absent.
 140          */
 141         long map_skip;
 142         };
 143
 144 /*#define POLICY_CACHE_FLAG_CRITICAL            POLICY_DATA_FLAG_CRITICAL*/
 145
 146 /* This structure represents the relationship between nodes */
 147
 148 struct X509_POLICY_NODE_st
 149         {
 150         /* node data this refers to */
 151         const X509_POLICY_DATA *data;
 152         /* Parent node */
 153         X509_POLICY_NODE *parent;
 154         /* Number of child nodes */
 155         int nchild;
 156         };
 157
 158 struct X509_POLICY_LEVEL_st
 159         {
 160         /* Cert for this level */
 161         X509 *cert;
 162         /* nodes at this level */
 163         STACK_OF(X509_POLICY_NODE) *nodes;
 164         /* anyPolicy node */
 165         X509_POLICY_NODE *anyPolicy;
 166         /* Extra data */
 167         /*STACK_OF(X509_POLICY_DATA) *extra_data;*/
 168         unsigned int flags;
 169         };
 170
 171 struct X509_POLICY_TREE_st
 172         {
 173         /* This is the tree 'level' data */
 174         X509_POLICY_LEVEL *levels;
 175         int nlevel;
 176         /* Extra policy data when additional nodes (not from the certificate)
 177          * are required.
 178          */
 179         STACK_OF(X509_POLICY_DATA) *extra_data;
 180         /* This is the authority constained policy set */
 181         STACK_OF(X509_POLICY_NODE) *auth_policies;
 182         STACK_OF(X509_POLICY_NODE) *user_policies;
 183         unsigned int flags;
 184         };
 185
 186 /* Set if anyPolicy present in user policies */
 187 #define POLICY_FLAG_ANY_POLICY          0x2
 188
 189 /* Useful macros */
 190
 191 #define node_data_critical(data) (data->flags & POLICY_DATA_FLAG_CRITICAL)
 192 #define node_critical(node) node_data_critical(node->data)
 193
 194 /* Internal functions */
 195
 196 X509_POLICY_DATA *policy_data_new(POLICYINFO *policy, ASN1_OBJECT *id,
 197                                                                 int crit);
 198 void policy_data_free(X509_POLICY_DATA *data);
 199
 200 X509_POLICY_DATA *policy_cache_find_data(const X509_POLICY_CACHE *cache,
 201                                                         const ASN1_OBJECT *id);
 202 int policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps);
 203
 204
 205 STACK_OF(X509_POLICY_NODE) *policy_node_cmp_new(void);
 206
 207 void policy_cache_init(void);
 208
 209 void policy_cache_free(X509_POLICY_CACHE *cache);
 210
 211 X509_POLICY_NODE *level_find_node(const X509_POLICY_LEVEL *level,
 212                                         const ASN1_OBJECT *id);
 213
 214 X509_POLICY_NODE *tree_find_sk(STACK_OF(X509_POLICY_NODE) *sk,
 215                                                 const ASN1_OBJECT *id);
 216
 217 X509_POLICY_NODE *level_add_node(X509_POLICY_LEVEL *level,
 218                         X509_POLICY_DATA *data,
 219                         X509_POLICY_NODE *parent,
 220                         X509_POLICY_TREE *tree);
 221 void policy_node_free(X509_POLICY_NODE *node);
 222
 223 const X509_POLICY_CACHE *policy_cache_set(X509 *x);