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1 /* pcy_map.c */ |
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2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL |
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3 * project 2004. |
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4 */ |
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5 /* ==================================================================== |
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6 * Copyright (c) 2004 The OpenSSL Project. All rights reserved. |
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7 * |
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8 * Redistribution and use in source and binary forms, with or without |
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9 * modification, are permitted provided that the following conditions |
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10 * are met: |
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11 * |
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12 * 1. Redistributions of source code must retain the above copyright |
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13 * notice, this list of conditions and the following disclaimer. |
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14 * |
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15 * 2. Redistributions in binary form must reproduce the above copyright |
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16 * notice, this list of conditions and the following disclaimer in |
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17 * the documentation and/or other materials provided with the |
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18 * distribution. |
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19 * |
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20 * 3. All advertising materials mentioning features or use of this |
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21 * software must display the following acknowledgment: |
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22 * "This product includes software developed by the OpenSSL Project |
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23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
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24 * |
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25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
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26 * endorse or promote products derived from this software without |
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27 * prior written permission. For written permission, please contact |
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28 * licensing@OpenSSL.org. |
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29 * |
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30 * 5. Products derived from this software may not be called "OpenSSL" |
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31 * nor may "OpenSSL" appear in their names without prior written |
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32 * permission of the OpenSSL Project. |
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33 * |
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34 * 6. Redistributions of any form whatsoever must retain the following |
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35 * acknowledgment: |
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36 * "This product includes software developed by the OpenSSL Project |
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37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
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38 * |
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39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
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40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
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43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
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47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
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48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
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50 * OF THE POSSIBILITY OF SUCH DAMAGE. |
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51 * ==================================================================== |
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52 * |
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53 * This product includes cryptographic software written by Eric Young |
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54 * (eay@cryptsoft.com). This product includes software written by Tim |
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55 * Hudson (tjh@cryptsoft.com). |
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56 * |
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57 */ |
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58 |
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59 #include "cryptlib.h" |
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60 #include <openssl/x509.h> |
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61 #include <openssl/x509v3.h> |
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62 |
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63 #include "pcy_int.h" |
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64 |
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65 static int ref_cmp(const X509_POLICY_REF * const *a, |
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66 const X509_POLICY_REF * const *b) |
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67 { |
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68 return OBJ_cmp((*a)->subjectDomainPolicy, (*b)->subjectDomainPolicy); |
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69 } |
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70 |
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71 static void policy_map_free(X509_POLICY_REF *map) |
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72 { |
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73 if (map->subjectDomainPolicy) |
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74 ASN1_OBJECT_free(map->subjectDomainPolicy); |
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75 OPENSSL_free(map); |
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76 } |
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77 |
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78 static X509_POLICY_REF *policy_map_find(X509_POLICY_CACHE *cache, ASN1_OBJECT *id) |
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79 { |
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80 X509_POLICY_REF tmp; |
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81 int idx; |
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82 tmp.subjectDomainPolicy = id; |
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83 |
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84 idx = sk_X509_POLICY_REF_find(cache->maps, &tmp); |
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85 if (idx == -1) |
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86 return NULL; |
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87 return sk_X509_POLICY_REF_value(cache->maps, idx); |
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88 } |
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89 |
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90 /* Set policy mapping entries in cache. |
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91 * Note: this modifies the passed POLICY_MAPPINGS structure |
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92 */ |
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93 |
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94 EXPORT_C int policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps) |
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95 { |
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96 POLICY_MAPPING *map; |
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97 X509_POLICY_REF *ref = NULL; |
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98 X509_POLICY_DATA *data; |
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99 X509_POLICY_CACHE *cache = x->policy_cache; |
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100 int i; |
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101 int ret = 0; |
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102 if (sk_POLICY_MAPPING_num(maps) == 0) |
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103 { |
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104 ret = -1; |
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105 goto bad_mapping; |
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106 } |
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107 cache->maps = sk_X509_POLICY_REF_new(ref_cmp); |
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108 for (i = 0; i < sk_POLICY_MAPPING_num(maps); i++) |
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109 { |
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110 map = sk_POLICY_MAPPING_value(maps, i); |
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111 /* Reject if map to or from anyPolicy */ |
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112 if ((OBJ_obj2nid(map->subjectDomainPolicy) == NID_any_policy) |
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113 || (OBJ_obj2nid(map->issuerDomainPolicy) == NID_any_policy)) |
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114 { |
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115 ret = -1; |
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116 goto bad_mapping; |
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117 } |
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118 |
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119 /* If we've already mapped from this OID bad mapping */ |
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120 if (policy_map_find(cache, map->subjectDomainPolicy) != NULL) |
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121 { |
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122 ret = -1; |
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123 goto bad_mapping; |
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124 } |
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125 |
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126 /* Attempt to find matching policy data */ |
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127 data = policy_cache_find_data(cache, map->issuerDomainPolicy); |
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128 /* If we don't have anyPolicy can't map */ |
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129 if (!data && !cache->anyPolicy) |
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130 continue; |
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131 |
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132 /* Create a NODE from anyPolicy */ |
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133 if (!data) |
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134 { |
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135 data = policy_data_new(NULL, map->issuerDomainPolicy, |
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136 cache->anyPolicy->flags |
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137 & POLICY_DATA_FLAG_CRITICAL); |
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138 if (!data) |
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139 goto bad_mapping; |
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140 data->qualifier_set = cache->anyPolicy->qualifier_set; |
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141 map->issuerDomainPolicy = NULL; |
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142 data->flags |= POLICY_DATA_FLAG_MAPPED_ANY; |
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143 data->flags |= POLICY_DATA_FLAG_SHARED_QUALIFIERS; |
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144 if (!sk_X509_POLICY_DATA_push(cache->data, data)) |
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145 { |
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146 policy_data_free(data); |
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147 goto bad_mapping; |
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148 } |
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149 } |
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150 else |
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151 data->flags |= POLICY_DATA_FLAG_MAPPED; |
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152 |
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153 if (!sk_ASN1_OBJECT_push(data->expected_policy_set, |
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154 map->subjectDomainPolicy)) |
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155 goto bad_mapping; |
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156 |
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157 ref = OPENSSL_malloc(sizeof(X509_POLICY_REF)); |
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158 if (!ref) |
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159 goto bad_mapping; |
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160 |
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161 ref->subjectDomainPolicy = map->subjectDomainPolicy; |
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162 map->subjectDomainPolicy = NULL; |
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163 ref->data = data; |
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164 |
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165 if (!sk_X509_POLICY_REF_push(cache->maps, ref)) |
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166 goto bad_mapping; |
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167 |
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168 ref = NULL; |
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169 |
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170 } |
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171 |
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172 ret = 1; |
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173 bad_mapping: |
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174 if (ret == -1) |
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175 x->ex_flags |= EXFLAG_INVALID_POLICY; |
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176 if (ref) |
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177 policy_map_free(ref); |
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178 if (ret <= 0) |
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179 { |
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180 sk_X509_POLICY_REF_pop_free(cache->maps, policy_map_free); |
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181 cache->maps = NULL; |
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182 } |
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183 sk_POLICY_MAPPING_pop_free(maps, POLICY_MAPPING_free); |
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184 return ret; |
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185 |
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186 } |