Alexandre Savard | 1b09e31 | 2012-08-07 20:33:29 -0400 | [diff] [blame] | 1 | /* pcy_node.c */ |
| 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 | |
| 59 | #include <openssl/asn1.h> |
| 60 | #include <openssl/x509.h> |
| 61 | #include <openssl/x509v3.h> |
| 62 | |
| 63 | #include "pcy_int.h" |
| 64 | |
| 65 | static int node_cmp(const X509_POLICY_NODE * const *a, |
| 66 | const X509_POLICY_NODE * const *b) |
| 67 | { |
| 68 | return OBJ_cmp((*a)->data->valid_policy, (*b)->data->valid_policy); |
| 69 | } |
| 70 | |
| 71 | STACK_OF(X509_POLICY_NODE) *policy_node_cmp_new(void) |
| 72 | { |
| 73 | return sk_X509_POLICY_NODE_new(node_cmp); |
| 74 | } |
| 75 | |
| 76 | X509_POLICY_NODE *tree_find_sk(STACK_OF(X509_POLICY_NODE) *nodes, |
| 77 | const ASN1_OBJECT *id) |
| 78 | { |
| 79 | X509_POLICY_DATA n; |
| 80 | X509_POLICY_NODE l; |
| 81 | int idx; |
| 82 | |
| 83 | n.valid_policy = (ASN1_OBJECT *)id; |
| 84 | l.data = &n; |
| 85 | |
| 86 | idx = sk_X509_POLICY_NODE_find(nodes, &l); |
| 87 | if (idx == -1) |
| 88 | return NULL; |
| 89 | |
| 90 | return sk_X509_POLICY_NODE_value(nodes, idx); |
| 91 | |
| 92 | } |
| 93 | |
| 94 | X509_POLICY_NODE *level_find_node(const X509_POLICY_LEVEL *level, |
| 95 | const X509_POLICY_NODE *parent, |
| 96 | const ASN1_OBJECT *id) |
| 97 | { |
| 98 | X509_POLICY_NODE *node; |
| 99 | int i; |
| 100 | for (i = 0; i < sk_X509_POLICY_NODE_num(level->nodes); i++) |
| 101 | { |
| 102 | node = sk_X509_POLICY_NODE_value(level->nodes, i); |
| 103 | if (node->parent == parent) |
| 104 | { |
| 105 | if (!OBJ_cmp(node->data->valid_policy, id)) |
| 106 | return node; |
| 107 | } |
| 108 | } |
| 109 | return NULL; |
| 110 | } |
| 111 | |
| 112 | X509_POLICY_NODE *level_add_node(X509_POLICY_LEVEL *level, |
| 113 | const X509_POLICY_DATA *data, |
| 114 | X509_POLICY_NODE *parent, |
| 115 | X509_POLICY_TREE *tree) |
| 116 | { |
| 117 | X509_POLICY_NODE *node; |
| 118 | node = OPENSSL_malloc(sizeof(X509_POLICY_NODE)); |
| 119 | if (!node) |
| 120 | return NULL; |
| 121 | node->data = data; |
| 122 | node->parent = parent; |
| 123 | node->nchild = 0; |
| 124 | if (level) |
| 125 | { |
| 126 | if (OBJ_obj2nid(data->valid_policy) == NID_any_policy) |
| 127 | { |
| 128 | if (level->anyPolicy) |
| 129 | goto node_error; |
| 130 | level->anyPolicy = node; |
| 131 | } |
| 132 | else |
| 133 | { |
| 134 | |
| 135 | if (!level->nodes) |
| 136 | level->nodes = policy_node_cmp_new(); |
| 137 | if (!level->nodes) |
| 138 | goto node_error; |
| 139 | if (!sk_X509_POLICY_NODE_push(level->nodes, node)) |
| 140 | goto node_error; |
| 141 | } |
| 142 | } |
| 143 | |
| 144 | if (tree) |
| 145 | { |
| 146 | if (!tree->extra_data) |
| 147 | tree->extra_data = sk_X509_POLICY_DATA_new_null(); |
| 148 | if (!tree->extra_data) |
| 149 | goto node_error; |
| 150 | if (!sk_X509_POLICY_DATA_push(tree->extra_data, data)) |
| 151 | goto node_error; |
| 152 | } |
| 153 | |
| 154 | if (parent) |
| 155 | parent->nchild++; |
| 156 | |
| 157 | return node; |
| 158 | |
| 159 | node_error: |
| 160 | policy_node_free(node); |
| 161 | return 0; |
| 162 | |
| 163 | } |
| 164 | |
| 165 | void policy_node_free(X509_POLICY_NODE *node) |
| 166 | { |
| 167 | OPENSSL_free(node); |
| 168 | } |
| 169 | |
| 170 | /* See if a policy node matches a policy OID. If mapping enabled look through |
| 171 | * expected policy set otherwise just valid policy. |
| 172 | */ |
| 173 | |
| 174 | int policy_node_match(const X509_POLICY_LEVEL *lvl, |
| 175 | const X509_POLICY_NODE *node, const ASN1_OBJECT *oid) |
| 176 | { |
| 177 | int i; |
| 178 | ASN1_OBJECT *policy_oid; |
| 179 | const X509_POLICY_DATA *x = node->data; |
| 180 | |
| 181 | if ( (lvl->flags & X509_V_FLAG_INHIBIT_MAP) |
| 182 | || !(x->flags & POLICY_DATA_FLAG_MAP_MASK)) |
| 183 | { |
| 184 | if (!OBJ_cmp(x->valid_policy, oid)) |
| 185 | return 1; |
| 186 | return 0; |
| 187 | } |
| 188 | |
| 189 | for (i = 0; i < sk_ASN1_OBJECT_num(x->expected_policy_set); i++) |
| 190 | { |
| 191 | policy_oid = sk_ASN1_OBJECT_value(x->expected_policy_set, i); |
| 192 | if (!OBJ_cmp(policy_oid, oid)) |
| 193 | return 1; |
| 194 | } |
| 195 | return 0; |
| 196 | |
| 197 | } |