[331] | 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++) {
|
---|
| 378 | qualinfo = sk_POLICYQUALINFO_value(quals, i);
|
---|
| 379 | switch (OBJ_obj2nid(qualinfo->pqualid)) {
|
---|
| 380 | case NID_id_qt_cps:
|
---|
| 381 | BIO_printf(out, "%*sCPS: %s\n", indent, "",
|
---|
| 382 | qualinfo->d.cpsuri->data);
|
---|
| 383 | break;
|
---|
| 384 |
|
---|
| 385 | case NID_id_qt_unotice:
|
---|
| 386 | BIO_printf(out, "%*sUser Notice:\n", indent, "");
|
---|
| 387 | print_notice(out, qualinfo->d.usernotice, indent + 2);
|
---|
| 388 | break;
|
---|
| 389 |
|
---|
| 390 | default:
|
---|
| 391 | BIO_printf(out, "%*sUnknown Qualifier: ", indent + 2, "");
|
---|
| 392 |
|
---|
| 393 | i2a_ASN1_OBJECT(out, qualinfo->pqualid);
|
---|
| 394 | BIO_puts(out, "\n");
|
---|
| 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 | }
|
---|