1 | /*
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2 | * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
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3 | *
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4 | * Licensed under the OpenSSL license (the "License"). You may not use
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5 | * this file except in compliance with the License. You can obtain a copy
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6 | * in the file LICENSE in the source distribution or at
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7 | * https://www.openssl.org/source/license.html
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8 | */
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9 |
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10 | #include <stdio.h>
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11 | #include "internal/cryptlib.h"
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12 | #include <openssl/conf.h>
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13 | #include <openssl/asn1.h>
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14 | #include <openssl/asn1t.h>
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15 | #include <openssl/x509v3.h>
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16 |
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17 | #include "pcy_int.h"
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18 | #include "ext_dat.h"
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19 |
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20 | /* Certificate policies extension support: this one is a bit complex... */
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21 |
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22 | static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
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23 | BIO *out, int indent);
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24 | static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
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25 | X509V3_CTX *ctx, const char *value);
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26 | static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
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27 | int indent);
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28 | static void print_notice(BIO *out, USERNOTICE *notice, int indent);
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29 | static POLICYINFO *policy_section(X509V3_CTX *ctx,
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30 | STACK_OF(CONF_VALUE) *polstrs, int ia5org);
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31 | static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
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32 | STACK_OF(CONF_VALUE) *unot, int ia5org);
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33 | static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos);
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34 |
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35 | const X509V3_EXT_METHOD v3_cpols = {
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36 | NID_certificate_policies, 0, ASN1_ITEM_ref(CERTIFICATEPOLICIES),
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37 | 0, 0, 0, 0,
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38 | 0, 0,
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39 | 0, 0,
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40 | (X509V3_EXT_I2R)i2r_certpol,
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41 | (X509V3_EXT_R2I)r2i_certpol,
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42 | NULL
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43 | };
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44 |
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45 | ASN1_ITEM_TEMPLATE(CERTIFICATEPOLICIES) =
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46 | ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF, 0, CERTIFICATEPOLICIES, POLICYINFO)
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47 | ASN1_ITEM_TEMPLATE_END(CERTIFICATEPOLICIES)
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48 |
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49 | IMPLEMENT_ASN1_FUNCTIONS(CERTIFICATEPOLICIES)
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50 |
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51 | ASN1_SEQUENCE(POLICYINFO) = {
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52 | ASN1_SIMPLE(POLICYINFO, policyid, ASN1_OBJECT),
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53 | ASN1_SEQUENCE_OF_OPT(POLICYINFO, qualifiers, POLICYQUALINFO)
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54 | } ASN1_SEQUENCE_END(POLICYINFO)
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55 |
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56 | IMPLEMENT_ASN1_FUNCTIONS(POLICYINFO)
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57 |
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58 | ASN1_ADB_TEMPLATE(policydefault) = ASN1_SIMPLE(POLICYQUALINFO, d.other, ASN1_ANY);
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59 |
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60 | ASN1_ADB(POLICYQUALINFO) = {
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61 | ADB_ENTRY(NID_id_qt_cps, ASN1_SIMPLE(POLICYQUALINFO, d.cpsuri, ASN1_IA5STRING)),
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62 | ADB_ENTRY(NID_id_qt_unotice, ASN1_SIMPLE(POLICYQUALINFO, d.usernotice, USERNOTICE))
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63 | } ASN1_ADB_END(POLICYQUALINFO, 0, pqualid, 0, &policydefault_tt, NULL);
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64 |
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65 | ASN1_SEQUENCE(POLICYQUALINFO) = {
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66 | ASN1_SIMPLE(POLICYQUALINFO, pqualid, ASN1_OBJECT),
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67 | ASN1_ADB_OBJECT(POLICYQUALINFO)
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68 | } ASN1_SEQUENCE_END(POLICYQUALINFO)
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69 |
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70 | IMPLEMENT_ASN1_FUNCTIONS(POLICYQUALINFO)
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71 |
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72 | ASN1_SEQUENCE(USERNOTICE) = {
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73 | ASN1_OPT(USERNOTICE, noticeref, NOTICEREF),
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74 | ASN1_OPT(USERNOTICE, exptext, DISPLAYTEXT)
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75 | } ASN1_SEQUENCE_END(USERNOTICE)
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76 |
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77 | IMPLEMENT_ASN1_FUNCTIONS(USERNOTICE)
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78 |
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79 | ASN1_SEQUENCE(NOTICEREF) = {
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80 | ASN1_SIMPLE(NOTICEREF, organization, DISPLAYTEXT),
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81 | ASN1_SEQUENCE_OF(NOTICEREF, noticenos, ASN1_INTEGER)
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82 | } ASN1_SEQUENCE_END(NOTICEREF)
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83 |
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84 | IMPLEMENT_ASN1_FUNCTIONS(NOTICEREF)
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85 |
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86 | static STACK_OF(POLICYINFO) *r2i_certpol(X509V3_EXT_METHOD *method,
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87 | X509V3_CTX *ctx, const char *value)
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88 | {
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89 | STACK_OF(POLICYINFO) *pols = NULL;
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90 | char *pstr;
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91 | POLICYINFO *pol;
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92 | ASN1_OBJECT *pobj;
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93 | STACK_OF(CONF_VALUE) *vals;
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94 | CONF_VALUE *cnf;
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95 | int i, ia5org;
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96 | pols = sk_POLICYINFO_new_null();
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97 | if (pols == NULL) {
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98 | X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
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99 | return NULL;
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100 | }
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101 | vals = X509V3_parse_list(value);
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102 | if (vals == NULL) {
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103 | X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_X509V3_LIB);
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104 | goto err;
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105 | }
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106 | ia5org = 0;
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107 | for (i = 0; i < sk_CONF_VALUE_num(vals); i++) {
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108 | cnf = sk_CONF_VALUE_value(vals, i);
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109 | if (cnf->value || !cnf->name) {
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110 | X509V3err(X509V3_F_R2I_CERTPOL,
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111 | X509V3_R_INVALID_POLICY_IDENTIFIER);
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112 | X509V3_conf_err(cnf);
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113 | goto err;
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114 | }
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115 | pstr = cnf->name;
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116 | if (strcmp(pstr, "ia5org") == 0) {
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117 | ia5org = 1;
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118 | continue;
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119 | } else if (*pstr == '@') {
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120 | STACK_OF(CONF_VALUE) *polsect;
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121 | polsect = X509V3_get_section(ctx, pstr + 1);
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122 | if (!polsect) {
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123 | X509V3err(X509V3_F_R2I_CERTPOL, X509V3_R_INVALID_SECTION);
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124 |
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125 | X509V3_conf_err(cnf);
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126 | goto err;
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127 | }
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128 | pol = policy_section(ctx, polsect, ia5org);
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129 | X509V3_section_free(ctx, polsect);
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130 | if (pol == NULL)
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131 | goto err;
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132 | } else {
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133 | if ((pobj = OBJ_txt2obj(cnf->name, 0)) == NULL) {
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134 | X509V3err(X509V3_F_R2I_CERTPOL,
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135 | X509V3_R_INVALID_OBJECT_IDENTIFIER);
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136 | X509V3_conf_err(cnf);
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137 | goto err;
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138 | }
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139 | pol = POLICYINFO_new();
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140 | if (pol == NULL) {
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141 | X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
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142 | ASN1_OBJECT_free(pobj);
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143 | goto err;
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144 | }
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145 | pol->policyid = pobj;
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146 | }
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147 | if (!sk_POLICYINFO_push(pols, pol)) {
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148 | POLICYINFO_free(pol);
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149 | X509V3err(X509V3_F_R2I_CERTPOL, ERR_R_MALLOC_FAILURE);
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150 | goto err;
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151 | }
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152 | }
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153 | sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
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154 | return pols;
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155 | err:
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156 | sk_CONF_VALUE_pop_free(vals, X509V3_conf_free);
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157 | sk_POLICYINFO_pop_free(pols, POLICYINFO_free);
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158 | return NULL;
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159 | }
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160 |
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161 | static POLICYINFO *policy_section(X509V3_CTX *ctx,
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162 | STACK_OF(CONF_VALUE) *polstrs, int ia5org)
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163 | {
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164 | int i;
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165 | CONF_VALUE *cnf;
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166 | POLICYINFO *pol;
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167 | POLICYQUALINFO *qual;
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168 |
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169 | if ((pol = POLICYINFO_new()) == NULL)
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170 | goto merr;
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171 | for (i = 0; i < sk_CONF_VALUE_num(polstrs); i++) {
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172 | cnf = sk_CONF_VALUE_value(polstrs, i);
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173 | if (strcmp(cnf->name, "policyIdentifier") == 0) {
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174 | ASN1_OBJECT *pobj;
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175 | if ((pobj = OBJ_txt2obj(cnf->value, 0)) == NULL) {
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176 | X509V3err(X509V3_F_POLICY_SECTION,
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177 | X509V3_R_INVALID_OBJECT_IDENTIFIER);
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178 | X509V3_conf_err(cnf);
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179 | goto err;
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180 | }
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181 | pol->policyid = pobj;
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182 |
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183 | } else if (!name_cmp(cnf->name, "CPS")) {
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184 | if (pol->qualifiers == NULL)
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185 | pol->qualifiers = sk_POLICYQUALINFO_new_null();
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186 | if ((qual = POLICYQUALINFO_new()) == NULL)
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187 | goto merr;
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188 | if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
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189 | goto merr;
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190 | if ((qual->pqualid = OBJ_nid2obj(NID_id_qt_cps)) == NULL) {
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191 | X509V3err(X509V3_F_POLICY_SECTION, ERR_R_INTERNAL_ERROR);
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192 | goto err;
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193 | }
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194 | if ((qual->d.cpsuri = ASN1_IA5STRING_new()) == NULL)
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195 | goto merr;
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196 | if (!ASN1_STRING_set(qual->d.cpsuri, cnf->value,
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197 | strlen(cnf->value)))
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198 | goto merr;
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199 | } else if (!name_cmp(cnf->name, "userNotice")) {
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200 | STACK_OF(CONF_VALUE) *unot;
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201 | if (*cnf->value != '@') {
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202 | X509V3err(X509V3_F_POLICY_SECTION,
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203 | X509V3_R_EXPECTED_A_SECTION_NAME);
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204 | X509V3_conf_err(cnf);
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205 | goto err;
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206 | }
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207 | unot = X509V3_get_section(ctx, cnf->value + 1);
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208 | if (!unot) {
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209 | X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_INVALID_SECTION);
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210 |
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211 | X509V3_conf_err(cnf);
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212 | goto err;
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213 | }
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214 | qual = notice_section(ctx, unot, ia5org);
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215 | X509V3_section_free(ctx, unot);
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216 | if (!qual)
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217 | goto err;
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218 | if (!pol->qualifiers)
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219 | pol->qualifiers = sk_POLICYQUALINFO_new_null();
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220 | if (!sk_POLICYQUALINFO_push(pol->qualifiers, qual))
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221 | goto merr;
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222 | } else {
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223 | X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_INVALID_OPTION);
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224 |
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225 | X509V3_conf_err(cnf);
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226 | goto err;
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227 | }
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228 | }
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229 | if (!pol->policyid) {
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230 | X509V3err(X509V3_F_POLICY_SECTION, X509V3_R_NO_POLICY_IDENTIFIER);
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231 | goto err;
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232 | }
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233 |
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234 | return pol;
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235 |
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236 | merr:
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237 | X509V3err(X509V3_F_POLICY_SECTION, ERR_R_MALLOC_FAILURE);
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238 |
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239 | err:
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240 | POLICYINFO_free(pol);
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241 | return NULL;
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242 |
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243 | }
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244 |
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245 | static POLICYQUALINFO *notice_section(X509V3_CTX *ctx,
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246 | STACK_OF(CONF_VALUE) *unot, int ia5org)
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247 | {
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248 | int i, ret;
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249 | CONF_VALUE *cnf;
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250 | USERNOTICE *not;
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251 | POLICYQUALINFO *qual;
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252 |
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253 | if ((qual = POLICYQUALINFO_new()) == NULL)
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254 | goto merr;
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255 | if ((qual->pqualid = OBJ_nid2obj(NID_id_qt_unotice)) == NULL) {
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256 | X509V3err(X509V3_F_NOTICE_SECTION, ERR_R_INTERNAL_ERROR);
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257 | goto err;
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258 | }
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259 | if ((not = USERNOTICE_new()) == NULL)
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260 | goto merr;
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261 | qual->d.usernotice = not;
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262 | for (i = 0; i < sk_CONF_VALUE_num(unot); i++) {
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263 | cnf = sk_CONF_VALUE_value(unot, i);
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264 | if (strcmp(cnf->name, "explicitText") == 0) {
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265 | if ((not->exptext = ASN1_VISIBLESTRING_new()) == NULL)
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266 | goto merr;
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267 | if (!ASN1_STRING_set(not->exptext, cnf->value,
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268 | strlen(cnf->value)))
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269 | goto merr;
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270 | } else if (strcmp(cnf->name, "organization") == 0) {
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271 | NOTICEREF *nref;
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272 | if (!not->noticeref) {
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273 | if ((nref = NOTICEREF_new()) == NULL)
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274 | goto merr;
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275 | not->noticeref = nref;
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276 | } else
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277 | nref = not->noticeref;
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278 | if (ia5org)
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279 | nref->organization->type = V_ASN1_IA5STRING;
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280 | else
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281 | nref->organization->type = V_ASN1_VISIBLESTRING;
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282 | if (!ASN1_STRING_set(nref->organization, cnf->value,
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283 | strlen(cnf->value)))
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284 | goto merr;
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285 | } else if (strcmp(cnf->name, "noticeNumbers") == 0) {
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286 | NOTICEREF *nref;
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287 | STACK_OF(CONF_VALUE) *nos;
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288 | if (!not->noticeref) {
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289 | if ((nref = NOTICEREF_new()) == NULL)
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290 | goto merr;
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291 | not->noticeref = nref;
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292 | } else
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293 | nref = not->noticeref;
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294 | nos = X509V3_parse_list(cnf->value);
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295 | if (!nos || !sk_CONF_VALUE_num(nos)) {
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296 | X509V3err(X509V3_F_NOTICE_SECTION, X509V3_R_INVALID_NUMBERS);
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297 | X509V3_conf_err(cnf);
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298 | sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
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299 | goto err;
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300 | }
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301 | ret = nref_nos(nref->noticenos, nos);
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302 | sk_CONF_VALUE_pop_free(nos, X509V3_conf_free);
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303 | if (!ret)
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304 | goto err;
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305 | } else {
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306 | X509V3err(X509V3_F_NOTICE_SECTION, X509V3_R_INVALID_OPTION);
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307 | X509V3_conf_err(cnf);
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308 | goto err;
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309 | }
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310 | }
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311 |
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312 | if (not->noticeref &&
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313 | (!not->noticeref->noticenos || !not->noticeref->organization)) {
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314 | X509V3err(X509V3_F_NOTICE_SECTION,
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315 | X509V3_R_NEED_ORGANIZATION_AND_NUMBERS);
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316 | goto err;
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317 | }
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318 |
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319 | return qual;
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320 |
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321 | merr:
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322 | X509V3err(X509V3_F_NOTICE_SECTION, ERR_R_MALLOC_FAILURE);
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323 |
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324 | err:
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325 | POLICYQUALINFO_free(qual);
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326 | return NULL;
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327 | }
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328 |
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329 | static int nref_nos(STACK_OF(ASN1_INTEGER) *nnums, STACK_OF(CONF_VALUE) *nos)
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330 | {
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331 | CONF_VALUE *cnf;
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332 | ASN1_INTEGER *aint;
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333 |
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334 | int i;
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335 |
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336 | for (i = 0; i < sk_CONF_VALUE_num(nos); i++) {
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337 | cnf = sk_CONF_VALUE_value(nos, i);
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338 | if ((aint = s2i_ASN1_INTEGER(NULL, cnf->name)) == NULL) {
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339 | X509V3err(X509V3_F_NREF_NOS, X509V3_R_INVALID_NUMBER);
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340 | goto err;
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341 | }
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342 | if (!sk_ASN1_INTEGER_push(nnums, aint))
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343 | goto merr;
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344 | }
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345 | return 1;
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346 |
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347 | merr:
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348 | ASN1_INTEGER_free(aint);
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349 | X509V3err(X509V3_F_NREF_NOS, ERR_R_MALLOC_FAILURE);
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350 |
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351 | err:
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352 | return 0;
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353 | }
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354 |
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355 | static int i2r_certpol(X509V3_EXT_METHOD *method, STACK_OF(POLICYINFO) *pol,
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356 | BIO *out, int indent)
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357 | {
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358 | int i;
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359 | POLICYINFO *pinfo;
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360 | /* First print out the policy OIDs */
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361 | for (i = 0; i < sk_POLICYINFO_num(pol); i++) {
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362 | pinfo = sk_POLICYINFO_value(pol, i);
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363 | BIO_printf(out, "%*sPolicy: ", indent, "");
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364 | i2a_ASN1_OBJECT(out, pinfo->policyid);
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365 | BIO_puts(out, "\n");
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366 | if (pinfo->qualifiers)
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367 | print_qualifiers(out, pinfo->qualifiers, indent + 2);
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368 | }
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369 | return 1;
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370 | }
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371 |
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372 | static void print_qualifiers(BIO *out, STACK_OF(POLICYQUALINFO) *quals,
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373 | int indent)
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374 | {
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375 | POLICYQUALINFO *qualinfo;
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376 | int i;
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377 | for (i = 0; i < sk_POLICYQUALINFO_num(quals); i++) {
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378 | qualinfo = sk_POLICYQUALINFO_value(quals, i);
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379 | switch (OBJ_obj2nid(qualinfo->pqualid)) {
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380 | case NID_id_qt_cps:
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381 | BIO_printf(out, "%*sCPS: %s\n", indent, "",
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382 | qualinfo->d.cpsuri->data);
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383 | break;
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384 |
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385 | case NID_id_qt_unotice:
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386 | BIO_printf(out, "%*sUser Notice:\n", indent, "");
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387 | print_notice(out, qualinfo->d.usernotice, indent + 2);
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388 | break;
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389 |
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390 | default:
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391 | BIO_printf(out, "%*sUnknown Qualifier: ", indent + 2, "");
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392 |
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393 | i2a_ASN1_OBJECT(out, qualinfo->pqualid);
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394 | BIO_puts(out, "\n");
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395 | break;
|
---|
396 | }
|
---|
397 | }
|
---|
398 | }
|
---|
399 |
|
---|
400 | static void print_notice(BIO *out, USERNOTICE *notice, int indent)
|
---|
401 | {
|
---|
402 | int i;
|
---|
403 | if (notice->noticeref) {
|
---|
404 | NOTICEREF *ref;
|
---|
405 | ref = notice->noticeref;
|
---|
406 | BIO_printf(out, "%*sOrganization: %s\n", indent, "",
|
---|
407 | ref->organization->data);
|
---|
408 | BIO_printf(out, "%*sNumber%s: ", indent, "",
|
---|
409 | sk_ASN1_INTEGER_num(ref->noticenos) > 1 ? "s" : "");
|
---|
410 | for (i = 0; i < sk_ASN1_INTEGER_num(ref->noticenos); i++) {
|
---|
411 | ASN1_INTEGER *num;
|
---|
412 | char *tmp;
|
---|
413 | num = sk_ASN1_INTEGER_value(ref->noticenos, i);
|
---|
414 | if (i)
|
---|
415 | BIO_puts(out, ", ");
|
---|
416 | tmp = i2s_ASN1_INTEGER(NULL, num);
|
---|
417 | BIO_puts(out, tmp);
|
---|
418 | OPENSSL_free(tmp);
|
---|
419 | }
|
---|
420 | BIO_puts(out, "\n");
|
---|
421 | }
|
---|
422 | if (notice->exptext)
|
---|
423 | BIO_printf(out, "%*sExplicit Text: %s\n", indent, "",
|
---|
424 | notice->exptext->data);
|
---|
425 | }
|
---|
426 |
|
---|
427 | void X509_POLICY_NODE_print(BIO *out, X509_POLICY_NODE *node, int indent)
|
---|
428 | {
|
---|
429 | const X509_POLICY_DATA *dat = node->data;
|
---|
430 |
|
---|
431 | BIO_printf(out, "%*sPolicy: ", indent, "");
|
---|
432 |
|
---|
433 | i2a_ASN1_OBJECT(out, dat->valid_policy);
|
---|
434 | BIO_puts(out, "\n");
|
---|
435 | BIO_printf(out, "%*s%s\n", indent + 2, "",
|
---|
436 | node_data_critical(dat) ? "Critical" : "Non Critical");
|
---|
437 | if (dat->qualifier_set)
|
---|
438 | print_qualifiers(out, dat->qualifier_set, indent + 2);
|
---|
439 | else
|
---|
440 | BIO_printf(out, "%*sNo Qualifiers\n", indent + 2, "");
|
---|
441 | }
|
---|