1/* pcy_int.h */
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.
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
59DECLARE_STACK_OF(X509_POLICY_DATA)
60DECLARE_STACK_OF(X509_POLICY_REF)
61DECLARE_STACK_OF(X509_POLICY_NODE)
62
63typedef struct X509_POLICY_DATA_st X509_POLICY_DATA;
64typedef 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
74struct 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
117struct 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
125struct 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
148struct 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
158struct 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
171struct 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
196X509_POLICY_DATA *policy_data_new(POLICYINFO *policy, ASN1_OBJECT *id,
197								int crit);
198void policy_data_free(X509_POLICY_DATA *data);
199
200X509_POLICY_DATA *policy_cache_find_data(const X509_POLICY_CACHE *cache,
201							const ASN1_OBJECT *id);
202int policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps);
203
204
205STACK_OF(X509_POLICY_NODE) *policy_node_cmp_new(void);
206
207void policy_cache_init(void);
208
209void policy_cache_free(X509_POLICY_CACHE *cache);
210
211X509_POLICY_NODE *level_find_node(const X509_POLICY_LEVEL *level,
212					const ASN1_OBJECT *id);
213
214X509_POLICY_NODE *tree_find_sk(STACK_OF(X509_POLICY_NODE) *sk,
215						const ASN1_OBJECT *id);
216
217X509_POLICY_NODE *level_add_node(X509_POLICY_LEVEL *level,
218			X509_POLICY_DATA *data,
219			X509_POLICY_NODE *parent,
220			X509_POLICY_TREE *tree);
221void policy_node_free(X509_POLICY_NODE *node);
222
223const X509_POLICY_CACHE *policy_cache_set(X509 *x);
224