1 /* pcy_int.h */ 2 /* 3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4 * 2004. 5 */ 6 /* ==================================================================== 7 * Copyright (c) 2004 The OpenSSL Project. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in 18 * the documentation and/or other materials provided with the 19 * distribution. 20 * 21 * 3. All advertising materials mentioning features or use of this 22 * software must display the following acknowledgment: 23 * "This product includes software developed by the OpenSSL Project 24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25 * 26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27 * endorse or promote products derived from this software without 28 * prior written permission. For written permission, please contact 29 * licensing@OpenSSL.org. 30 * 31 * 5. Products derived from this software may not be called "OpenSSL" 32 * nor may "OpenSSL" appear in their names without prior written 33 * permission of the OpenSSL Project. 34 * 35 * 6. Redistributions of any form whatsoever must retain the following 36 * acknowledgment: 37 * "This product includes software developed by the OpenSSL Project 38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51 * OF THE POSSIBILITY OF SUCH DAMAGE. 52 * ==================================================================== 53 * 54 * This product includes cryptographic software written by Eric Young 55 * (eay@cryptsoft.com). This product includes software written by Tim 56 * Hudson (tjh@cryptsoft.com). 57 * 58 */ 59 60 typedef struct X509_POLICY_DATA_st X509_POLICY_DATA; 61 62 DEFINE_STACK_OF(X509_POLICY_DATA) 63 64 /* Internal structures */ 65 66 /* 67 * This structure and the field names correspond to the Policy 'node' of 68 * RFC3280. NB this structure contains no pointers to parent or child data: 69 * X509_POLICY_NODE contains that. This means that the main policy data can 70 * be kept static and cached with the certificate. 71 */ 72 73 struct X509_POLICY_DATA_st { 74 unsigned int flags; 75 /* Policy OID and qualifiers for this data */ 76 ASN1_OBJECT *valid_policy; 77 STACK_OF(POLICYQUALINFO) *qualifier_set; 78 STACK_OF(ASN1_OBJECT) *expected_policy_set; 79 }; 80 81 /* X509_POLICY_DATA flags values */ 82 83 /* 84 * This flag indicates the structure has been mapped using a policy mapping 85 * extension. If policy mapping is not active its references get deleted. 86 */ 87 88 #define POLICY_DATA_FLAG_MAPPED 0x1 89 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 cached with a certificate */ 114 115 struct X509_POLICY_CACHE_st { 116 /* anyPolicy data or NULL if no anyPolicy */ 117 X509_POLICY_DATA *anyPolicy; 118 /* other policy data */ 119 STACK_OF(X509_POLICY_DATA) *data; 120 /* If InhibitAnyPolicy present this is its value or -1 if absent. */ 121 long any_skip; 122 /* 123 * If policyConstraints and requireExplicitPolicy present this is its 124 * value or -1 if absent. 125 */ 126 long explicit_skip; 127 /* 128 * If policyConstraints and policyMapping present this is its value or -1 129 * if absent. 130 */ 131 long map_skip; 132 }; 133 134 /* 135 * #define POLICY_CACHE_FLAG_CRITICAL POLICY_DATA_FLAG_CRITICAL 136 */ 137 138 /* This structure represents the relationship between nodes */ 139 140 struct X509_POLICY_NODE_st { 141 /* node data this refers to */ 142 const X509_POLICY_DATA *data; 143 /* Parent node */ 144 X509_POLICY_NODE *parent; 145 /* Number of child nodes */ 146 int nchild; 147 }; 148 149 struct X509_POLICY_LEVEL_st { 150 /* Cert for this level */ 151 X509 *cert; 152 /* nodes at this level */ 153 STACK_OF(X509_POLICY_NODE) *nodes; 154 /* anyPolicy node */ 155 X509_POLICY_NODE *anyPolicy; 156 /* Extra data */ 157 /* 158 * STACK_OF(X509_POLICY_DATA) *extra_data; 159 */ 160 unsigned int flags; 161 }; 162 163 struct X509_POLICY_TREE_st { 164 /* This is the tree 'level' data */ 165 X509_POLICY_LEVEL *levels; 166 int nlevel; 167 /* 168 * Extra policy data when additional nodes (not from the certificate) are 169 * required. 170 */ 171 STACK_OF(X509_POLICY_DATA) *extra_data; 172 /* This is the authority constained policy set */ 173 STACK_OF(X509_POLICY_NODE) *auth_policies; 174 STACK_OF(X509_POLICY_NODE) *user_policies; 175 unsigned int flags; 176 }; 177 178 /* Set if anyPolicy present in user policies */ 179 #define POLICY_FLAG_ANY_POLICY 0x2 180 181 /* Useful macros */ 182 183 #define node_data_critical(data) ((data)->flags & POLICY_DATA_FLAG_CRITICAL) 184 #define node_critical(node) node_data_critical((node)->data) 185 186 /* Internal functions */ 187 188 X509_POLICY_DATA *policy_data_new(POLICYINFO *policy, const ASN1_OBJECT *id, 189 int crit); 190 void policy_data_free(X509_POLICY_DATA *data); 191 192 X509_POLICY_DATA *policy_cache_find_data(const X509_POLICY_CACHE *cache, 193 const ASN1_OBJECT *id); 194 int policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps); 195 196 STACK_OF(X509_POLICY_NODE) *policy_node_cmp_new(void); 197 198 void policy_cache_init(void); 199 200 void policy_cache_free(X509_POLICY_CACHE *cache); 201 202 X509_POLICY_NODE *level_find_node(const X509_POLICY_LEVEL *level, 203 const X509_POLICY_NODE *parent, 204 const ASN1_OBJECT *id); 205 206 X509_POLICY_NODE *tree_find_sk(STACK_OF(X509_POLICY_NODE) *sk, 207 const ASN1_OBJECT *id); 208 209 X509_POLICY_NODE *level_add_node(X509_POLICY_LEVEL *level, 210 X509_POLICY_DATA *data, 211 X509_POLICY_NODE *parent, 212 X509_POLICY_TREE *tree); 213 void policy_node_free(X509_POLICY_NODE *node); 214 int policy_node_match(const X509_POLICY_LEVEL *lvl, 215 const X509_POLICY_NODE *node, const ASN1_OBJECT *oid); 216 217 const X509_POLICY_CACHE *policy_cache_set(X509 *x); 218