pcy_node.c revision 296465 
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
66static int node_cmp(const X509_POLICY_NODE *const *a,
67                    const X509_POLICY_NODE *const *b)
68{
69    return OBJ_cmp((*a)->data->valid_policy, (*b)->data->valid_policy);
70}
71
72STACK_OF(X509_POLICY_NODE) *policy_node_cmp_new(void)
73{
74    return sk_X509_POLICY_NODE_new(node_cmp);
75}
76
77X509_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    n.valid_policy = (ASN1_OBJECT *)id;
85    l.data = &n;
86
87    idx = sk_X509_POLICY_NODE_find(nodes, &l);
88    if (idx == -1)
89        return NULL;
90
91    return sk_X509_POLICY_NODE_value(nodes, idx);
92
93}
94
95X509_POLICY_NODE *level_find_node(const X509_POLICY_LEVEL *level,
96                                  const ASN1_OBJECT *id)
97{
98    return tree_find_sk(level->nodes, id);
99}
100
101X509_POLICY_NODE *level_add_node(X509_POLICY_LEVEL *level,
102                                 X509_POLICY_DATA *data,
103                                 X509_POLICY_NODE *parent,
104                                 X509_POLICY_TREE *tree)
105{
106    X509_POLICY_NODE *node;
107    node = OPENSSL_malloc(sizeof(X509_POLICY_NODE));
108    if (!node)
109        return NULL;
110    node->data = data;
111    node->parent = parent;
112    node->nchild = 0;
113    if (level) {
114        if (OBJ_obj2nid(data->valid_policy) == NID_any_policy) {
115            if (level->anyPolicy)
116                goto node_error;
117            level->anyPolicy = node;
118        } else {
119
120            if (!level->nodes)
121                level->nodes = policy_node_cmp_new();
122            if (!level->nodes)
123                goto node_error;
124            if (!sk_X509_POLICY_NODE_push(level->nodes, node))
125                goto node_error;
126        }
127    }
128
129    if (tree) {
130        if (!tree->extra_data)
131            tree->extra_data = sk_X509_POLICY_DATA_new_null();
132        if (!tree->extra_data)
133            goto node_error;
134        if (!sk_X509_POLICY_DATA_push(tree->extra_data, data))
135            goto node_error;
136    }
137
138    if (parent)
139        parent->nchild++;
140
141    return node;
142
143 node_error:
144    policy_node_free(node);
145    return 0;
146
147}
148
149void policy_node_free(X509_POLICY_NODE *node)
150{
151    OPENSSL_free(node);
152}
153