Line data Source code
1 : /* pcy_node.c */
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 : #include <openssl/asn1.h>
61 : #include <openssl/x509.h>
62 : #include <openssl/x509v3.h>
63 :
64 : #include "pcy_int.h"
65 :
66 0 : static int node_cmp(const X509_POLICY_NODE *const *a,
67 : const X509_POLICY_NODE *const *b)
68 : {
69 0 : return OBJ_cmp((*a)->data->valid_policy, (*b)->data->valid_policy);
70 : }
71 :
72 0 : STACK_OF(X509_POLICY_NODE) *policy_node_cmp_new(void)
73 : {
74 0 : return sk_X509_POLICY_NODE_new(node_cmp);
75 : }
76 :
77 0 : X509_POLICY_NODE *tree_find_sk(STACK_OF(X509_POLICY_NODE) *nodes,
78 : const ASN1_OBJECT *id)
79 : {
80 : X509_POLICY_DATA n;
81 : X509_POLICY_NODE l;
82 : int idx;
83 :
84 0 : n.valid_policy = (ASN1_OBJECT *)id;
85 0 : l.data = &n;
86 :
87 0 : idx = sk_X509_POLICY_NODE_find(nodes, &l);
88 0 : if (idx == -1)
89 : return NULL;
90 :
91 0 : return sk_X509_POLICY_NODE_value(nodes, idx);
92 :
93 : }
94 :
95 0 : X509_POLICY_NODE *level_find_node(const X509_POLICY_LEVEL *level,
96 : const X509_POLICY_NODE *parent,
97 : const ASN1_OBJECT *id)
98 : {
99 : X509_POLICY_NODE *node;
100 : int i;
101 0 : for (i = 0; i < sk_X509_POLICY_NODE_num(level->nodes); i++) {
102 0 : node = sk_X509_POLICY_NODE_value(level->nodes, i);
103 0 : if (node->parent == parent) {
104 0 : if (!OBJ_cmp(node->data->valid_policy, id))
105 : return node;
106 : }
107 : }
108 : return NULL;
109 : }
110 :
111 0 : X509_POLICY_NODE *level_add_node(X509_POLICY_LEVEL *level,
112 : const X509_POLICY_DATA *data,
113 : X509_POLICY_NODE *parent,
114 : X509_POLICY_TREE *tree)
115 : {
116 : X509_POLICY_NODE *node;
117 0 : node = OPENSSL_malloc(sizeof(X509_POLICY_NODE));
118 0 : if (!node)
119 : return NULL;
120 0 : node->data = data;
121 0 : node->parent = parent;
122 0 : node->nchild = 0;
123 0 : if (level) {
124 0 : if (OBJ_obj2nid(data->valid_policy) == NID_any_policy) {
125 0 : if (level->anyPolicy)
126 : goto node_error;
127 0 : level->anyPolicy = node;
128 : } else {
129 :
130 0 : if (!level->nodes)
131 0 : level->nodes = policy_node_cmp_new();
132 0 : if (!level->nodes)
133 : goto node_error;
134 0 : if (!sk_X509_POLICY_NODE_push(level->nodes, node))
135 : goto node_error;
136 : }
137 : }
138 :
139 0 : if (tree) {
140 0 : if (!tree->extra_data)
141 0 : tree->extra_data = sk_X509_POLICY_DATA_new_null();
142 0 : if (!tree->extra_data)
143 : goto node_error;
144 0 : if (!sk_X509_POLICY_DATA_push(tree->extra_data, data))
145 : goto node_error;
146 : }
147 :
148 0 : if (parent)
149 0 : parent->nchild++;
150 :
151 0 : return node;
152 :
153 : node_error:
154 : policy_node_free(node);
155 0 : return 0;
156 :
157 : }
158 :
159 0 : void policy_node_free(X509_POLICY_NODE *node)
160 : {
161 0 : OPENSSL_free(node);
162 0 : }
163 :
164 : /*
165 : * See if a policy node matches a policy OID. If mapping enabled look through
166 : * expected policy set otherwise just valid policy.
167 : */
168 :
169 0 : int policy_node_match(const X509_POLICY_LEVEL *lvl,
170 : const X509_POLICY_NODE *node, const ASN1_OBJECT *oid)
171 : {
172 : int i;
173 : ASN1_OBJECT *policy_oid;
174 0 : const X509_POLICY_DATA *x = node->data;
175 :
176 0 : if ((lvl->flags & X509_V_FLAG_INHIBIT_MAP)
177 0 : || !(x->flags & POLICY_DATA_FLAG_MAP_MASK)) {
178 0 : if (!OBJ_cmp(x->valid_policy, oid))
179 : return 1;
180 0 : return 0;
181 : }
182 :
183 0 : for (i = 0; i < sk_ASN1_OBJECT_num(x->expected_policy_set); i++) {
184 0 : policy_oid = sk_ASN1_OBJECT_value(x->expected_policy_set, i);
185 0 : if (!OBJ_cmp(policy_oid, oid))
186 : return 1;
187 : }
188 : return 0;
189 :
190 : }
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