| 1 | /*
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| 2 | * Copyright 2004-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | typedef struct X509_POLICY_DATA_st X509_POLICY_DATA;
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| 11 |
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| 12 | DEFINE_STACK_OF(X509_POLICY_DATA)
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| 13 |
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| 14 | /* Internal structures */
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| 15 |
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| 16 | /*
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| 17 | * This structure and the field names correspond to the Policy 'node' of
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| 18 | * RFC3280. NB this structure contains no pointers to parent or child data:
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| 19 | * X509_POLICY_NODE contains that. This means that the main policy data can
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| 20 | * be kept static and cached with the certificate.
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| 21 | */
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| 22 |
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| 23 | struct X509_POLICY_DATA_st {
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| 24 | unsigned int flags;
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| 25 | /* Policy OID and qualifiers for this data */
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| 26 | ASN1_OBJECT *valid_policy;
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| 27 | STACK_OF(POLICYQUALINFO) *qualifier_set;
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| 28 | STACK_OF(ASN1_OBJECT) *expected_policy_set;
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| 29 | };
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| 30 |
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| 31 | /* X509_POLICY_DATA flags values */
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| 32 |
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| 33 | /*
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| 34 | * This flag indicates the structure has been mapped using a policy mapping
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| 35 | * extension. If policy mapping is not active its references get deleted.
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| 36 | */
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| 37 |
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| 38 | #define POLICY_DATA_FLAG_MAPPED 0x1
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| 39 |
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| 40 | /*
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| 41 | * This flag indicates the data doesn't correspond to a policy in Certificate
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| 42 | * Policies: it has been mapped to any policy.
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| 43 | */
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| 44 |
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| 45 | #define POLICY_DATA_FLAG_MAPPED_ANY 0x2
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| 46 |
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| 47 | /* AND with flags to see if any mapping has occurred */
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| 48 |
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| 49 | #define POLICY_DATA_FLAG_MAP_MASK 0x3
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| 50 |
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| 51 | /* qualifiers are shared and shouldn't be freed */
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| 52 |
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| 53 | #define POLICY_DATA_FLAG_SHARED_QUALIFIERS 0x4
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| 54 |
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| 55 | /* Parent node is an extra node and should be freed */
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| 56 |
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| 57 | #define POLICY_DATA_FLAG_EXTRA_NODE 0x8
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| 58 |
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| 59 | /* Corresponding CertificatePolicies is critical */
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| 60 |
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| 61 | #define POLICY_DATA_FLAG_CRITICAL 0x10
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| 62 |
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| 63 | /* This structure is cached with a certificate */
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| 64 |
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| 65 | struct X509_POLICY_CACHE_st {
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| 66 | /* anyPolicy data or NULL if no anyPolicy */
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| 67 | X509_POLICY_DATA *anyPolicy;
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| 68 | /* other policy data */
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| 69 | STACK_OF(X509_POLICY_DATA) *data;
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| 70 | /* If InhibitAnyPolicy present this is its value or -1 if absent. */
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| 71 | long any_skip;
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| 72 | /*
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| 73 | * If policyConstraints and requireExplicitPolicy present this is its
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| 74 | * value or -1 if absent.
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| 75 | */
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| 76 | long explicit_skip;
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| 77 | /*
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| 78 | * If policyConstraints and policyMapping present this is its value or -1
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| 79 | * if absent.
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| 80 | */
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| 81 | long map_skip;
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| 82 | };
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| 83 |
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| 84 | /*
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| 85 | * #define POLICY_CACHE_FLAG_CRITICAL POLICY_DATA_FLAG_CRITICAL
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| 86 | */
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| 87 |
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| 88 | /* This structure represents the relationship between nodes */
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| 89 |
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| 90 | struct X509_POLICY_NODE_st {
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| 91 | /* node data this refers to */
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| 92 | const X509_POLICY_DATA *data;
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| 93 | /* Parent node */
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| 94 | X509_POLICY_NODE *parent;
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| 95 | /* Number of child nodes */
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| 96 | int nchild;
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| 97 | };
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| 98 |
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| 99 | struct X509_POLICY_LEVEL_st {
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| 100 | /* Cert for this level */
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| 101 | X509 *cert;
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| 102 | /* nodes at this level */
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| 103 | STACK_OF(X509_POLICY_NODE) *nodes;
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| 104 | /* anyPolicy node */
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| 105 | X509_POLICY_NODE *anyPolicy;
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| 106 | /* Extra data */
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| 107 | /*
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| 108 | * STACK_OF(X509_POLICY_DATA) *extra_data;
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| 109 | */
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| 110 | unsigned int flags;
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| 111 | };
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| 112 |
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| 113 | struct X509_POLICY_TREE_st {
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| 114 | /* This is the tree 'level' data */
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| 115 | X509_POLICY_LEVEL *levels;
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| 116 | int nlevel;
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| 117 | /*
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| 118 | * Extra policy data when additional nodes (not from the certificate) are
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| 119 | * required.
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| 120 | */
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| 121 | STACK_OF(X509_POLICY_DATA) *extra_data;
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| 122 | /* This is the authority constrained policy set */
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| 123 | STACK_OF(X509_POLICY_NODE) *auth_policies;
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| 124 | STACK_OF(X509_POLICY_NODE) *user_policies;
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| 125 | unsigned int flags;
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| 126 | };
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| 127 |
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| 128 | /* Set if anyPolicy present in user policies */
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| 129 | #define POLICY_FLAG_ANY_POLICY 0x2
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| 130 |
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| 131 | /* Useful macros */
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| 132 |
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| 133 | #define node_data_critical(data) (data->flags & POLICY_DATA_FLAG_CRITICAL)
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| 134 | #define node_critical(node) node_data_critical(node->data)
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| 135 |
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| 136 | /* Internal functions */
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| 137 |
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| 138 | X509_POLICY_DATA *policy_data_new(POLICYINFO *policy, const ASN1_OBJECT *id,
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| 139 | int crit);
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| 140 | void policy_data_free(X509_POLICY_DATA *data);
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| 141 |
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| 142 | X509_POLICY_DATA *policy_cache_find_data(const X509_POLICY_CACHE *cache,
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| 143 | const ASN1_OBJECT *id);
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| 144 | int policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps);
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| 145 |
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| 146 | STACK_OF(X509_POLICY_NODE) *policy_node_cmp_new(void);
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| 147 |
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| 148 | void policy_cache_init(void);
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| 149 |
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| 150 | void policy_cache_free(X509_POLICY_CACHE *cache);
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| 151 |
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| 152 | X509_POLICY_NODE *level_find_node(const X509_POLICY_LEVEL *level,
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| 153 | const X509_POLICY_NODE *parent,
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| 154 | const ASN1_OBJECT *id);
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| 155 |
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| 156 | X509_POLICY_NODE *tree_find_sk(STACK_OF(X509_POLICY_NODE) *sk,
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| 157 | const ASN1_OBJECT *id);
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| 158 |
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| 159 | X509_POLICY_NODE *level_add_node(X509_POLICY_LEVEL *level,
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| 160 | X509_POLICY_DATA *data,
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| 161 | X509_POLICY_NODE *parent,
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| 162 | X509_POLICY_TREE *tree);
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| 163 | void policy_node_free(X509_POLICY_NODE *node);
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| 164 | int policy_node_match(const X509_POLICY_LEVEL *lvl,
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| 165 | const X509_POLICY_NODE *node, const ASN1_OBJECT *oid);
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| 166 |
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| 167 | const X509_POLICY_CACHE *policy_cache_set(X509 *x);
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