1 /* $OpenBSD: pcy_int.h,v 1.1 2020/06/04 15:19:31 jsing Exp $ */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) 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.
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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
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45  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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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 __BEGIN_HIDDEN_DECLS
60 
61 typedef struct X509_POLICY_DATA_st X509_POLICY_DATA;
62 
63 DECLARE_STACK_OF(X509_POLICY_DATA)
64 
65 /* Internal structures */
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
69  * data: X509_POLICY_NODE contains that. This means that the main policy data
70  * can 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 /* This flag indicates the structure has been mapped using a policy mapping
84  * extension. If policy mapping is not active its references get deleted.
85  */
86 
87 #define POLICY_DATA_FLAG_MAPPED			0x1
88 
89 /* This flag indicates the data doesn't correspond to a policy in Certificate
90  * Policies: it has been mapped to any policy.
91  */
92 
93 #define POLICY_DATA_FLAG_MAPPED_ANY		0x2
94 
95 /* AND with flags to see if any mapping has occurred */
96 
97 #define POLICY_DATA_FLAG_MAP_MASK		0x3
98 
99 /* qualifiers are shared and shouldn't be freed */
100 
101 #define POLICY_DATA_FLAG_SHARED_QUALIFIERS	0x4
102 
103 /* Parent node is an extra node and should be freed */
104 
105 #define POLICY_DATA_FLAG_EXTRA_NODE		0x8
106 
107 /* Corresponding CertificatePolicies is critical */
108 
109 #define POLICY_DATA_FLAG_CRITICAL		0x10
110 
111 /* This structure is cached with a certificate */
112 
113 struct X509_POLICY_CACHE_st {
114 	/* anyPolicy data or NULL if no anyPolicy */
115 	X509_POLICY_DATA *anyPolicy;
116 	/* other policy data */
117 	STACK_OF(X509_POLICY_DATA) *data;
118 	/* If InhibitAnyPolicy present this is its value or -1 if absent. */
119 	long any_skip;
120 	/* If policyConstraints and requireExplicitPolicy present this is its
121 	 * value or -1 if absent.
122 	 */
123 	long explicit_skip;
124 	/* If policyConstraints and policyMapping present this is its
125 	 * value or -1 if absent.
126          */
127 	long map_skip;
128 };
129 
130 /*#define POLICY_CACHE_FLAG_CRITICAL		POLICY_DATA_FLAG_CRITICAL*/
131 
132 /* This structure represents the relationship between nodes */
133 
134 struct X509_POLICY_NODE_st {
135 	/* node data this refers to */
136 	const X509_POLICY_DATA *data;
137 	/* Parent node */
138 	X509_POLICY_NODE *parent;
139 	/* Number of child nodes */
140 	int nchild;
141 };
142 
143 struct X509_POLICY_LEVEL_st {
144 	/* Cert for this level */
145 	X509 *cert;
146 	/* nodes at this level */
147 	STACK_OF(X509_POLICY_NODE) *nodes;
148 	/* anyPolicy node */
149 	X509_POLICY_NODE *anyPolicy;
150 	/* Extra data */
151 	/*STACK_OF(X509_POLICY_DATA) *extra_data;*/
152 	unsigned int flags;
153 };
154 
155 struct X509_POLICY_TREE_st {
156 	/* This is the tree 'level' data */
157 	X509_POLICY_LEVEL *levels;
158 	int nlevel;
159 	/* Extra policy data when additional nodes (not from the certificate)
160 	 * are required.
161 	 */
162 	STACK_OF(X509_POLICY_DATA) *extra_data;
163 	/* This is the authority constained policy set */
164 	STACK_OF(X509_POLICY_NODE) *auth_policies;
165 	STACK_OF(X509_POLICY_NODE) *user_policies;
166 	unsigned int flags;
167 };
168 
169 /* Set if anyPolicy present in user policies */
170 #define POLICY_FLAG_ANY_POLICY		0x2
171 
172 /* Useful macros */
173 
174 #define node_data_critical(data) (data->flags & POLICY_DATA_FLAG_CRITICAL)
175 #define node_critical(node) node_data_critical(node->data)
176 
177 /* Internal functions */
178 
179 X509_POLICY_DATA *policy_data_new(POLICYINFO *policy, const ASN1_OBJECT *id,
180     int crit);
181 void policy_data_free(X509_POLICY_DATA *data);
182 
183 X509_POLICY_DATA *policy_cache_find_data(const X509_POLICY_CACHE *cache,
184     const ASN1_OBJECT *id);
185 int policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps);
186 
187 
188 STACK_OF(X509_POLICY_NODE) *policy_node_cmp_new(void);
189 
190 void policy_cache_init(void);
191 
192 void policy_cache_free(X509_POLICY_CACHE *cache);
193 
194 X509_POLICY_NODE *level_find_node(const X509_POLICY_LEVEL *level,
195     const X509_POLICY_NODE *parent, const ASN1_OBJECT *id);
196 
197 X509_POLICY_NODE *tree_find_sk(STACK_OF(X509_POLICY_NODE) *sk,
198     const ASN1_OBJECT *id);
199 
200 int level_add_node(X509_POLICY_LEVEL *level,
201     const X509_POLICY_DATA *data, X509_POLICY_NODE *parent,
202     X509_POLICY_TREE *tree, X509_POLICY_NODE **nodep);
203 void policy_node_free(X509_POLICY_NODE *node);
204 int policy_node_match(const X509_POLICY_LEVEL *lvl,
205     const X509_POLICY_NODE *node, const ASN1_OBJECT *oid);
206 
207 const X509_POLICY_CACHE *policy_cache_set(X509 *x);
208 
209 __END_HIDDEN_DECLS
210